aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorclyhtsuriva <clyhtsuriva@gmail.com>2020-05-20 12:03:31 +0200
committerclyhtsuriva <clyhtsuriva@gmail.com>2020-05-20 12:03:31 +0200
commit5d11a3e70f79acaae1f98a9f62fee7b1ec88952b (patch)
treed6bd43ea4438530261d9b2d94119c68aa276891d
parent1ef55833399d4a95560153f0d280f2efd77af2e2 (diff)
suprression graphique + ajout de loop bilan
Diffstat
-rw-r--r--www/html/Chart.js16151
-rwxr-xr-xwww/html/bilan.py82
-rw-r--r--www/html/fonctions.pycbin1318 -> 1207 bytes
-rw-r--r--www/html/pie.js35
4 files changed, 41 insertions, 16227 deletions
diff --git a/www/html/Chart.js b/www/html/Chart.js
deleted file mode 100644
index e8d937c..0000000
--- a/www/html/Chart.js
+++ /dev/null
@@ -1,16151 +0,0 @@
-/*!
- * Chart.js v2.9.3
- * https://www.chartjs.org
- * (c) 2019 Chart.js Contributors
- * Released under the MIT License
- */
-(function (global, factory) {
-typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(function() { try { return require('moment'); } catch(e) { } }()) :
-typeof define === 'function' && define.amd ? define(['require'], function(require) { return factory(function() { try { return require('moment'); } catch(e) { } }()); }) :
-(global = global || self, global.Chart = factory(global.moment));
-}(this, (function (moment) { 'use strict';
-
-moment = moment && moment.hasOwnProperty('default') ? moment['default'] : moment;
-
-function createCommonjsModule(fn, module) {
- return module = { exports: {} }, fn(module, module.exports), module.exports;
-}
-
-function getCjsExportFromNamespace (n) {
- return n && n['default'] || n;
-}
-
-var colorName = {
- "aliceblue": [240, 248, 255],
- "antiquewhite": [250, 235, 215],
- "aqua": [0, 255, 255],
- "aquamarine": [127, 255, 212],
- "azure": [240, 255, 255],
- "beige": [245, 245, 220],
- "bisque": [255, 228, 196],
- "black": [0, 0, 0],
- "blanchedalmond": [255, 235, 205],
- "blue": [0, 0, 255],
- "blueviolet": [138, 43, 226],
- "brown": [165, 42, 42],
- "burlywood": [222, 184, 135],
- "cadetblue": [95, 158, 160],
- "chartreuse": [127, 255, 0],
- "chocolate": [210, 105, 30],
- "coral": [255, 127, 80],
- "cornflowerblue": [100, 149, 237],
- "cornsilk": [255, 248, 220],
- "crimson": [220, 20, 60],
- "cyan": [0, 255, 255],
- "darkblue": [0, 0, 139],
- "darkcyan": [0, 139, 139],
- "darkgoldenrod": [184, 134, 11],
- "darkgray": [169, 169, 169],
- "darkgreen": [0, 100, 0],
- "darkgrey": [169, 169, 169],
- "darkkhaki": [189, 183, 107],
- "darkmagenta": [139, 0, 139],
- "darkolivegreen": [85, 107, 47],
- "darkorange": [255, 140, 0],
- "darkorchid": [153, 50, 204],
- "darkred": [139, 0, 0],
- "darksalmon": [233, 150, 122],
- "darkseagreen": [143, 188, 143],
- "darkslateblue": [72, 61, 139],
- "darkslategray": [47, 79, 79],
- "darkslategrey": [47, 79, 79],
- "darkturquoise": [0, 206, 209],
- "darkviolet": [148, 0, 211],
- "deeppink": [255, 20, 147],
- "deepskyblue": [0, 191, 255],
- "dimgray": [105, 105, 105],
- "dimgrey": [105, 105, 105],
- "dodgerblue": [30, 144, 255],
- "firebrick": [178, 34, 34],
- "floralwhite": [255, 250, 240],
- "forestgreen": [34, 139, 34],
- "fuchsia": [255, 0, 255],
- "gainsboro": [220, 220, 220],
- "ghostwhite": [248, 248, 255],
- "gold": [255, 215, 0],
- "goldenrod": [218, 165, 32],
- "gray": [128, 128, 128],
- "green": [0, 128, 0],
- "greenyellow": [173, 255, 47],
- "grey": [128, 128, 128],
- "honeydew": [240, 255, 240],
- "hotpink": [255, 105, 180],
- "indianred": [205, 92, 92],
- "indigo": [75, 0, 130],
- "ivory": [255, 255, 240],
- "khaki": [240, 230, 140],
- "lavender": [230, 230, 250],
- "lavenderblush": [255, 240, 245],
- "lawngreen": [124, 252, 0],
- "lemonchiffon": [255, 250, 205],
- "lightblue": [173, 216, 230],
- "lightcoral": [240, 128, 128],
- "lightcyan": [224, 255, 255],
- "lightgoldenrodyellow": [250, 250, 210],
- "lightgray": [211, 211, 211],
- "lightgreen": [144, 238, 144],
- "lightgrey": [211, 211, 211],
- "lightpink": [255, 182, 193],
- "lightsalmon": [255, 160, 122],
- "lightseagreen": [32, 178, 170],
- "lightskyblue": [135, 206, 250],
- "lightslategray": [119, 136, 153],
- "lightslategrey": [119, 136, 153],
- "lightsteelblue": [176, 196, 222],
- "lightyellow": [255, 255, 224],
- "lime": [0, 255, 0],
- "limegreen": [50, 205, 50],
- "linen": [250, 240, 230],
- "magenta": [255, 0, 255],
- "maroon": [128, 0, 0],
- "mediumaquamarine": [102, 205, 170],
- "mediumblue": [0, 0, 205],
- "mediumorchid": [186, 85, 211],
- "mediumpurple": [147, 112, 219],
- "mediumseagreen": [60, 179, 113],
- "mediumslateblue": [123, 104, 238],
- "mediumspringgreen": [0, 250, 154],
- "mediumturquoise": [72, 209, 204],
- "mediumvioletred": [199, 21, 133],
- "midnightblue": [25, 25, 112],
- "mintcream": [245, 255, 250],
- "mistyrose": [255, 228, 225],
- "moccasin": [255, 228, 181],
- "navajowhite": [255, 222, 173],
- "navy": [0, 0, 128],
- "oldlace": [253, 245, 230],
- "olive": [128, 128, 0],
- "olivedrab": [107, 142, 35],
- "orange": [255, 165, 0],
- "orangered": [255, 69, 0],
- "orchid": [218, 112, 214],
- "palegoldenrod": [238, 232, 170],
- "palegreen": [152, 251, 152],
- "paleturquoise": [175, 238, 238],
- "palevioletred": [219, 112, 147],
- "papayawhip": [255, 239, 213],
- "peachpuff": [255, 218, 185],
- "peru": [205, 133, 63],
- "pink": [255, 192, 203],
- "plum": [221, 160, 221],
- "powderblue": [176, 224, 230],
- "purple": [128, 0, 128],
- "rebeccapurple": [102, 51, 153],
- "red": [255, 0, 0],
- "rosybrown": [188, 143, 143],
- "royalblue": [65, 105, 225],
- "saddlebrown": [139, 69, 19],
- "salmon": [250, 128, 114],
- "sandybrown": [244, 164, 96],
- "seagreen": [46, 139, 87],
- "seashell": [255, 245, 238],
- "sienna": [160, 82, 45],
- "silver": [192, 192, 192],
- "skyblue": [135, 206, 235],
- "slateblue": [106, 90, 205],
- "slategray": [112, 128, 144],
- "slategrey": [112, 128, 144],
- "snow": [255, 250, 250],
- "springgreen": [0, 255, 127],
- "steelblue": [70, 130, 180],
- "tan": [210, 180, 140],
- "teal": [0, 128, 128],
- "thistle": [216, 191, 216],
- "tomato": [255, 99, 71],
- "turquoise": [64, 224, 208],
- "violet": [238, 130, 238],
- "wheat": [245, 222, 179],
- "white": [255, 255, 255],
- "whitesmoke": [245, 245, 245],
- "yellow": [255, 255, 0],
- "yellowgreen": [154, 205, 50]
-};
-
-var conversions = createCommonjsModule(function (module) {
-/* MIT license */
-
-
-// NOTE: conversions should only return primitive values (i.e. arrays, or
-// values that give correct `typeof` results).
-// do not use box values types (i.e. Number(), String(), etc.)
-
-var reverseKeywords = {};
-for (var key in colorName) {
- if (colorName.hasOwnProperty(key)) {
- reverseKeywords[colorName[key]] = key;
- }
-}
-
-var convert = module.exports = {
- rgb: {channels: 3, labels: 'rgb'},
- hsl: {channels: 3, labels: 'hsl'},
- hsv: {channels: 3, labels: 'hsv'},
- hwb: {channels: 3, labels: 'hwb'},
- cmyk: {channels: 4, labels: 'cmyk'},
- xyz: {channels: 3, labels: 'xyz'},
- lab: {channels: 3, labels: 'lab'},
- lch: {channels: 3, labels: 'lch'},
- hex: {channels: 1, labels: ['hex']},
- keyword: {channels: 1, labels: ['keyword']},
- ansi16: {channels: 1, labels: ['ansi16']},
- ansi256: {channels: 1, labels: ['ansi256']},
- hcg: {channels: 3, labels: ['h', 'c', 'g']},
- apple: {channels: 3, labels: ['r16', 'g16', 'b16']},
- gray: {channels: 1, labels: ['gray']}
-};
-
-// hide .channels and .labels properties
-for (var model in convert) {
- if (convert.hasOwnProperty(model)) {
- if (!('channels' in convert[model])) {
- throw new Error('missing channels property: ' + model);
- }
-
- if (!('labels' in convert[model])) {
- throw new Error('missing channel labels property: ' + model);
- }
-
- if (convert[model].labels.length !== convert[model].channels) {
- throw new Error('channel and label counts mismatch: ' + model);
- }
-
- var channels = convert[model].channels;
- var labels = convert[model].labels;
- delete convert[model].channels;
- delete convert[model].labels;
- Object.defineProperty(convert[model], 'channels', {value: channels});
- Object.defineProperty(convert[model], 'labels', {value: labels});
- }
-}
-
-convert.rgb.hsl = function (rgb) {
- var r = rgb[0] / 255;
- var g = rgb[1] / 255;
- var b = rgb[2] / 255;
- var min = Math.min(r, g, b);
- var max = Math.max(r, g, b);
- var delta = max - min;
- var h;
- var s;
- var l;
-
- if (max === min) {
- h = 0;
- } else if (r === max) {
- h = (g - b) / delta;
- } else if (g === max) {
- h = 2 + (b - r) / delta;
- } else if (b === max) {
- h = 4 + (r - g) / delta;
- }
-
- h = Math.min(h * 60, 360);
-
- if (h < 0) {
- h += 360;
- }
-
- l = (min + max) / 2;
-
- if (max === min) {
- s = 0;
- } else if (l <= 0.5) {
- s = delta / (max + min);
- } else {
- s = delta / (2 - max - min);
- }
-
- return [h, s * 100, l * 100];
-};
-
-convert.rgb.hsv = function (rgb) {
- var rdif;
- var gdif;
- var bdif;
- var h;
- var s;
-
- var r = rgb[0] / 255;
- var g = rgb[1] / 255;
- var b = rgb[2] / 255;
- var v = Math.max(r, g, b);
- var diff = v - Math.min(r, g, b);
- var diffc = function (c) {
- return (v - c) / 6 / diff + 1 / 2;
- };
-
- if (diff === 0) {
- h = s = 0;
- } else {
- s = diff / v;
- rdif = diffc(r);
- gdif = diffc(g);
- bdif = diffc(b);
-
- if (r === v) {
- h = bdif - gdif;
- } else if (g === v) {
- h = (1 / 3) + rdif - bdif;
- } else if (b === v) {
- h = (2 / 3) + gdif - rdif;
- }
- if (h < 0) {
- h += 1;
- } else if (h > 1) {
- h -= 1;
- }
- }
-
- return [
- h * 360,
- s * 100,
- v * 100
- ];
-};
-
-convert.rgb.hwb = function (rgb) {
- var r = rgb[0];
- var g = rgb[1];
- var b = rgb[2];
- var h = convert.rgb.hsl(rgb)[0];
- var w = 1 / 255 * Math.min(r, Math.min(g, b));
-
- b = 1 - 1 / 255 * Math.max(r, Math.max(g, b));
-
- return [h, w * 100, b * 100];
-};
-
-convert.rgb.cmyk = function (rgb) {
- var r = rgb[0] / 255;
- var g = rgb[1] / 255;
- var b = rgb[2] / 255;
- var c;
- var m;
- var y;
- var k;
-
- k = Math.min(1 - r, 1 - g, 1 - b);
- c = (1 - r - k) / (1 - k) || 0;
- m = (1 - g - k) / (1 - k) || 0;
- y = (1 - b - k) / (1 - k) || 0;
-
- return [c * 100, m * 100, y * 100, k * 100];
-};
-
-/**
- * See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance
- * */
-function comparativeDistance(x, y) {
- return (
- Math.pow(x[0] - y[0], 2) +
- Math.pow(x[1] - y[1], 2) +
- Math.pow(x[2] - y[2], 2)
- );
-}
-
-convert.rgb.keyword = function (rgb) {
- var reversed = reverseKeywords[rgb];
- if (reversed) {
- return reversed;
- }
-
- var currentClosestDistance = Infinity;
- var currentClosestKeyword;
-
- for (var keyword in colorName) {
- if (colorName.hasOwnProperty(keyword)) {
- var value = colorName[keyword];
-
- // Compute comparative distance
- var distance = comparativeDistance(rgb, value);
-
- // Check if its less, if so set as closest
- if (distance < currentClosestDistance) {
- currentClosestDistance = distance;
- currentClosestKeyword = keyword;
- }
- }
- }
-
- return currentClosestKeyword;
-};
-
-convert.keyword.rgb = function (keyword) {
- return colorName[keyword];
-};
-
-convert.rgb.xyz = function (rgb) {
- var r = rgb[0] / 255;
- var g = rgb[1] / 255;
- var b = rgb[2] / 255;
-
- // assume sRGB
- r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);
- g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);
- b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);
-
- var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
- var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
- var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);
-
- return [x * 100, y * 100, z * 100];
-};
-
-convert.rgb.lab = function (rgb) {
- var xyz = convert.rgb.xyz(rgb);
- var x = xyz[0];
- var y = xyz[1];
- var z = xyz[2];
- var l;
- var a;
- var b;
-
- x /= 95.047;
- y /= 100;
- z /= 108.883;
-
- x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
- y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
- z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);
-
- l = (116 * y) - 16;
- a = 500 * (x - y);
- b = 200 * (y - z);
-
- return [l, a, b];
-};
-
-convert.hsl.rgb = function (hsl) {
- var h = hsl[0] / 360;
- var s = hsl[1] / 100;
- var l = hsl[2] / 100;
- var t1;
- var t2;
- var t3;
- var rgb;
- var val;
-
- if (s === 0) {
- val = l * 255;
- return [val, val, val];
- }
-
- if (l < 0.5) {
- t2 = l * (1 + s);
- } else {
- t2 = l + s - l * s;
- }
-
- t1 = 2 * l - t2;
-
- rgb = [0, 0, 0];
- for (var i = 0; i < 3; i++) {
- t3 = h + 1 / 3 * -(i - 1);
- if (t3 < 0) {
- t3++;
- }
- if (t3 > 1) {
- t3--;
- }
-
- if (6 * t3 < 1) {
- val = t1 + (t2 - t1) * 6 * t3;
- } else if (2 * t3 < 1) {
- val = t2;
- } else if (3 * t3 < 2) {
- val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
- } else {
- val = t1;
- }
-
- rgb[i] = val * 255;
- }
-
- return rgb;
-};
-
-convert.hsl.hsv = function (hsl) {
- var h = hsl[0];
- var s = hsl[1] / 100;
- var l = hsl[2] / 100;
- var smin = s;
- var lmin = Math.max(l, 0.01);
- var sv;
- var v;
-
- l *= 2;
- s *= (l <= 1) ? l : 2 - l;
- smin *= lmin <= 1 ? lmin : 2 - lmin;
- v = (l + s) / 2;
- sv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s);
-
- return [h, sv * 100, v * 100];
-};
-
-convert.hsv.rgb = function (hsv) {
- var h = hsv[0] / 60;
- var s = hsv[1] / 100;
- var v = hsv[2] / 100;
- var hi = Math.floor(h) % 6;
-
- var f = h - Math.floor(h);
- var p = 255 * v * (1 - s);
- var q = 255 * v * (1 - (s * f));
- var t = 255 * v * (1 - (s * (1 - f)));
- v *= 255;
-
- switch (hi) {
- case 0:
- return [v, t, p];
- case 1:
- return [q, v, p];
- case 2:
- return [p, v, t];
- case 3:
- return [p, q, v];
- case 4:
- return [t, p, v];
- case 5:
- return [v, p, q];
- }
-};
-
-convert.hsv.hsl = function (hsv) {
- var h = hsv[0];
- var s = hsv[1] / 100;
- var v = hsv[2] / 100;
- var vmin = Math.max(v, 0.01);
- var lmin;
- var sl;
- var l;
-
- l = (2 - s) * v;
- lmin = (2 - s) * vmin;
- sl = s * vmin;
- sl /= (lmin <= 1) ? lmin : 2 - lmin;
- sl = sl || 0;
- l /= 2;
-
- return [h, sl * 100, l * 100];
-};
-
-// http://dev.w3.org/csswg/css-color/#hwb-to-rgb
-convert.hwb.rgb = function (hwb) {
- var h = hwb[0] / 360;
- var wh = hwb[1] / 100;
- var bl = hwb[2] / 100;
- var ratio = wh + bl;
- var i;
- var v;
- var f;
- var n;
-
- // wh + bl cant be > 1
- if (ratio > 1) {
- wh /= ratio;
- bl /= ratio;
- }
-
- i = Math.floor(6 * h);
- v = 1 - bl;
- f = 6 * h - i;
-
- if ((i & 0x01) !== 0) {
- f = 1 - f;
- }
-
- n = wh + f * (v - wh); // linear interpolation
-
- var r;
- var g;
- var b;
- switch (i) {
- default:
- case 6:
- case 0: r = v; g = n; b = wh; break;
- case 1: r = n; g = v; b = wh; break;
- case 2: r = wh; g = v; b = n; break;
- case 3: r = wh; g = n; b = v; break;
- case 4: r = n; g = wh; b = v; break;
- case 5: r = v; g = wh; b = n; break;
- }
-
- return [r * 255, g * 255, b * 255];
-};
-
-convert.cmyk.rgb = function (cmyk) {
- var c = cmyk[0] / 100;
- var m = cmyk[1] / 100;
- var y = cmyk[2] / 100;
- var k = cmyk[3] / 100;
- var r;
- var g;
- var b;
-
- r = 1 - Math.min(1, c * (1 - k) + k);
- g = 1 - Math.min(1, m * (1 - k) + k);
- b = 1 - Math.min(1, y * (1 - k) + k);
-
- return [r * 255, g * 255, b * 255];
-};
-
-convert.xyz.rgb = function (xyz) {
- var x = xyz[0] / 100;
- var y = xyz[1] / 100;
- var z = xyz[2] / 100;
- var r;
- var g;
- var b;
-
- r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);
- g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);
- b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);
-
- // assume sRGB
- r = r > 0.0031308
- ? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)
- : r * 12.92;
-
- g = g > 0.0031308
- ? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)
- : g * 12.92;
-
- b = b > 0.0031308
- ? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)
- : b * 12.92;
-
- r = Math.min(Math.max(0, r), 1);
- g = Math.min(Math.max(0, g), 1);
- b = Math.min(Math.max(0, b), 1);
-
- return [r * 255, g * 255, b * 255];
-};
-
-convert.xyz.lab = function (xyz) {
- var x = xyz[0];
- var y = xyz[1];
- var z = xyz[2];
- var l;
- var a;
- var b;
-
- x /= 95.047;
- y /= 100;
- z /= 108.883;
-
- x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
- y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
- z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);
-
- l = (116 * y) - 16;
- a = 500 * (x - y);
- b = 200 * (y - z);
-
- return [l, a, b];
-};
-
-convert.lab.xyz = function (lab) {
- var l = lab[0];
- var a = lab[1];
- var b = lab[2];
- var x;
- var y;
- var z;
-
- y = (l + 16) / 116;
- x = a / 500 + y;
- z = y - b / 200;
-
- var y2 = Math.pow(y, 3);
- var x2 = Math.pow(x, 3);
- var z2 = Math.pow(z, 3);
- y = y2 > 0.008856 ? y2 : (y - 16 / 116) / 7.787;
- x = x2 > 0.008856 ? x2 : (x - 16 / 116) / 7.787;
- z = z2 > 0.008856 ? z2 : (z - 16 / 116) / 7.787;
-
- x *= 95.047;
- y *= 100;
- z *= 108.883;
-
- return [x, y, z];
-};
-
-convert.lab.lch = function (lab) {
- var l = lab[0];
- var a = lab[1];
- var b = lab[2];
- var hr;
- var h;
- var c;
-
- hr = Math.atan2(b, a);
- h = hr * 360 / 2 / Math.PI;
-
- if (h < 0) {
- h += 360;
- }
-
- c = Math.sqrt(a * a + b * b);
-
- return [l, c, h];
-};
-
-convert.lch.lab = function (lch) {
- var l = lch[0];
- var c = lch[1];
- var h = lch[2];
- var a;
- var b;
- var hr;
-
- hr = h / 360 * 2 * Math.PI;
- a = c * Math.cos(hr);
- b = c * Math.sin(hr);
-
- return [l, a, b];
-};
-
-convert.rgb.ansi16 = function (args) {
- var r = args[0];
- var g = args[1];
- var b = args[2];
- var value = 1 in arguments ? arguments[1] : convert.rgb.hsv(args)[2]; // hsv -> ansi16 optimization
-
- value = Math.round(value / 50);
-
- if (value === 0) {
- return 30;
- }
-
- var ansi = 30
- + ((Math.round(b / 255) << 2)
- | (Math.round(g / 255) << 1)
- | Math.round(r / 255));
-
- if (value === 2) {
- ansi += 60;
- }
-
- return ansi;
-};
-
-convert.hsv.ansi16 = function (args) {
- // optimization here; we already know the value and don't need to get
- // it converted for us.
- return convert.rgb.ansi16(convert.hsv.rgb(args), args[2]);
-};
-
-convert.rgb.ansi256 = function (args) {
- var r = args[0];
- var g = args[1];
- var b = args[2];
-
- // we use the extended greyscale palette here, with the exception of
- // black and white. normal palette only has 4 greyscale shades.
- if (r === g && g === b) {
- if (r < 8) {
- return 16;
- }
-
- if (r > 248) {
- return 231;
- }
-
- return Math.round(((r - 8) / 247) * 24) + 232;
- }
-
- var ansi = 16
- + (36 * Math.round(r / 255 * 5))
- + (6 * Math.round(g / 255 * 5))
- + Math.round(b / 255 * 5);
-
- return ansi;
-};
-
-convert.ansi16.rgb = function (args) {
- var color = args % 10;
-
- // handle greyscale
- if (color === 0 || color === 7) {
- if (args > 50) {
- color += 3.5;
- }
-
- color = color / 10.5 * 255;
-
- return [color, color, color];
- }
-
- var mult = (~~(args > 50) + 1) * 0.5;
- var r = ((color & 1) * mult) * 255;
- var g = (((color >> 1) & 1) * mult) * 255;
- var b = (((color >> 2) & 1) * mult) * 255;
-
- return [r, g, b];
-};
-
-convert.ansi256.rgb = function (args) {
- // handle greyscale
- if (args >= 232) {
- var c = (args - 232) * 10 + 8;
- return [c, c, c];
- }
-
- args -= 16;
-
- var rem;
- var r = Math.floor(args / 36) / 5 * 255;
- var g = Math.floor((rem = args % 36) / 6) / 5 * 255;
- var b = (rem % 6) / 5 * 255;
-
- return [r, g, b];
-};
-
-convert.rgb.hex = function (args) {
- var integer = ((Math.round(args[0]) & 0xFF) << 16)
- + ((Math.round(args[1]) & 0xFF) << 8)
- + (Math.round(args[2]) & 0xFF);
-
- var string = integer.toString(16).toUpperCase();
- return '000000'.substring(string.length) + string;
-};
-
-convert.hex.rgb = function (args) {
- var match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i);
- if (!match) {
- return [0, 0, 0];
- }
-
- var colorString = match[0];
-
- if (match[0].length === 3) {
- colorString = colorString.split('').map(function (char) {
- return char + char;
- }).join('');
- }
-
- var integer = parseInt(colorString, 16);
- var r = (integer >> 16) & 0xFF;
- var g = (integer >> 8) & 0xFF;
- var b = integer & 0xFF;
-
- return [r, g, b];
-};
-
-convert.rgb.hcg = function (rgb) {
- var r = rgb[0] / 255;
- var g = rgb[1] / 255;
- var b = rgb[2] / 255;
- var max = Math.max(Math.max(r, g), b);
- var min = Math.min(Math.min(r, g), b);
- var chroma = (max - min);
- var grayscale;
- var hue;
-
- if (chroma < 1) {
- grayscale = min / (1 - chroma);
- } else {
- grayscale = 0;
- }
-
- if (chroma <= 0) {
- hue = 0;
- } else
- if (max === r) {
- hue = ((g - b) / chroma) % 6;
- } else
- if (max === g) {
- hue = 2 + (b - r) / chroma;
- } else {
- hue = 4 + (r - g) / chroma + 4;
- }
-
- hue /= 6;
- hue %= 1;
-
- return [hue * 360, chroma * 100, grayscale * 100];
-};
-
-convert.hsl.hcg = function (hsl) {
- var s = hsl[1] / 100;
- var l = hsl[2] / 100;
- var c = 1;
- var f = 0;
-
- if (l < 0.5) {
- c = 2.0 * s * l;
- } else {
- c = 2.0 * s * (1.0 - l);
- }
-
- if (c < 1.0) {
- f = (l - 0.5 * c) / (1.0 - c);
- }
-
- return [hsl[0], c * 100, f * 100];
-};
-
-convert.hsv.hcg = function (hsv) {
- var s = hsv[1] / 100;
- var v = hsv[2] / 100;
-
- var c = s * v;
- var f = 0;
-
- if (c < 1.0) {
- f = (v - c) / (1 - c);
- }
-
- return [hsv[0], c * 100, f * 100];
-};
-
-convert.hcg.rgb = function (hcg) {
- var h = hcg[0] / 360;
- var c = hcg[1] / 100;
- var g = hcg[2] / 100;
-
- if (c === 0.0) {
- return [g * 255, g * 255, g * 255];
- }
-
- var pure = [0, 0, 0];
- var hi = (h % 1) * 6;
- var v = hi % 1;
- var w = 1 - v;
- var mg = 0;
-
- switch (Math.floor(hi)) {
- case 0:
- pure[0] = 1; pure[1] = v; pure[2] = 0; break;
- case 1:
- pure[0] = w; pure[1] = 1; pure[2] = 0; break;
- case 2:
- pure[0] = 0; pure[1] = 1; pure[2] = v; break;
- case 3:
- pure[0] = 0; pure[1] = w; pure[2] = 1; break;
- case 4:
- pure[0] = v; pure[1] = 0; pure[2] = 1; break;
- default:
- pure[0] = 1; pure[1] = 0; pure[2] = w;
- }
-
- mg = (1.0 - c) * g;
-
- return [
- (c * pure[0] + mg) * 255,
- (c * pure[1] + mg) * 255,
- (c * pure[2] + mg) * 255
- ];
-};
-
-convert.hcg.hsv = function (hcg) {
- var c = hcg[1] / 100;
- var g = hcg[2] / 100;
-
- var v = c + g * (1.0 - c);
- var f = 0;
-
- if (v > 0.0) {
- f = c / v;
- }
-
- return [hcg[0], f * 100, v * 100];
-};
-
-convert.hcg.hsl = function (hcg) {
- var c = hcg[1] / 100;
- var g = hcg[2] / 100;
-
- var l = g * (1.0 - c) + 0.5 * c;
- var s = 0;
-
- if (l > 0.0 && l < 0.5) {
- s = c / (2 * l);
- } else
- if (l >= 0.5 && l < 1.0) {
- s = c / (2 * (1 - l));
- }
-
- return [hcg[0], s * 100, l * 100];
-};
-
-convert.hcg.hwb = function (hcg) {
- var c = hcg[1] / 100;
- var g = hcg[2] / 100;
- var v = c + g * (1.0 - c);
- return [hcg[0], (v - c) * 100, (1 - v) * 100];
-};
-
-convert.hwb.hcg = function (hwb) {
- var w = hwb[1] / 100;
- var b = hwb[2] / 100;
- var v = 1 - b;
- var c = v - w;
- var g = 0;
-
- if (c < 1) {
- g = (v - c) / (1 - c);
- }
-
- return [hwb[0], c * 100, g * 100];
-};
-
-convert.apple.rgb = function (apple) {
- return [(apple[0] / 65535) * 255, (apple[1] / 65535) * 255, (apple[2] / 65535) * 255];
-};
-
-convert.rgb.apple = function (rgb) {
- return [(rgb[0] / 255) * 65535, (rgb[1] / 255) * 65535, (rgb[2] / 255) * 65535];
-};
-
-convert.gray.rgb = function (args) {
- return [args[0] / 100 * 255, args[0] / 100 * 255, args[0] / 100 * 255];
-};
-
-convert.gray.hsl = convert.gray.hsv = function (args) {
- return [0, 0, args[0]];
-};
-
-convert.gray.hwb = function (gray) {
- return [0, 100, gray[0]];
-};
-
-convert.gray.cmyk = function (gray) {
- return [0, 0, 0, gray[0]];
-};
-
-convert.gray.lab = function (gray) {
- return [gray[0], 0, 0];
-};
-
-convert.gray.hex = function (gray) {
- var val = Math.round(gray[0] / 100 * 255) & 0xFF;
- var integer = (val << 16) + (val << 8) + val;
-
- var string = integer.toString(16).toUpperCase();
- return '000000'.substring(string.length) + string;
-};
-
-convert.rgb.gray = function (rgb) {
- var val = (rgb[0] + rgb[1] + rgb[2]) / 3;
- return [val / 255 * 100];
-};
-});
-var conversions_1 = conversions.rgb;
-var conversions_2 = conversions.hsl;
-var conversions_3 = conversions.hsv;
-var conversions_4 = conversions.hwb;
-var conversions_5 = conversions.cmyk;
-var conversions_6 = conversions.xyz;
-var conversions_7 = conversions.lab;
-var conversions_8 = conversions.lch;
-var conversions_9 = conversions.hex;
-var conversions_10 = conversions.keyword;
-var conversions_11 = conversions.ansi16;
-var conversions_12 = conversions.ansi256;
-var conversions_13 = conversions.hcg;
-var conversions_14 = conversions.apple;
-var conversions_15 = conversions.gray;
-
-/*
- this function routes a model to all other models.
-
- all functions that are routed have a property `.conversion` attached
- to the returned synthetic function. This property is an array
- of strings, each with the steps in between the 'from' and 'to'
- color models (inclusive).
-
- conversions that are not possible simply are not included.
-*/
-
-function buildGraph() {
- var graph = {};
- // https://jsperf.com/object-keys-vs-for-in-with-closure/3
- var models = Object.keys(conversions);
-
- for (var len = models.length, i = 0; i < len; i++) {
- graph[models[i]] = {
- // http://jsperf.com/1-vs-infinity
- // micro-opt, but this is simple.
- distance: -1,
- parent: null
- };
- }
-
- return graph;
-}
-
-// https://en.wikipedia.org/wiki/Breadth-first_search
-function deriveBFS(fromModel) {
- var graph = buildGraph();
- var queue = [fromModel]; // unshift -> queue -> pop
-
- graph[fromModel].distance = 0;
-
- while (queue.length) {
- var current = queue.pop();
- var adjacents = Object.keys(conversions[current]);
-
- for (var len = adjacents.length, i = 0; i < len; i++) {
- var adjacent = adjacents[i];
- var node = graph[adjacent];
-
- if (node.distance === -1) {
- node.distance = graph[current].distance + 1;
- node.parent = current;
- queue.unshift(adjacent);
- }
- }
- }
-
- return graph;
-}
-
-function link(from, to) {
- return function (args) {
- return to(from(args));
- };
-}
-
-function wrapConversion(toModel, graph) {
- var path = [graph[toModel].parent, toModel];
- var fn = conversions[graph[toModel].parent][toModel];
-
- var cur = graph[toModel].parent;
- while (graph[cur].parent) {
- path.unshift(graph[cur].parent);
- fn = link(conversions[graph[cur].parent][cur], fn);
- cur = graph[cur].parent;
- }
-
- fn.conversion = path;
- return fn;
-}
-
-var route = function (fromModel) {
- var graph = deriveBFS(fromModel);
- var conversion = {};
-
- var models = Object.keys(graph);
- for (var len = models.length, i = 0; i < len; i++) {
- var toModel = models[i];
- var node = graph[toModel];
-
- if (node.parent === null) {
- // no possible conversion, or this node is the source model.
- continue;
- }
-
- conversion[toModel] = wrapConversion(toModel, graph);
- }
-
- return conversion;
-};
-
-var convert = {};
-
-var models = Object.keys(conversions);
-
-function wrapRaw(fn) {
- var wrappedFn = function (args) {
- if (args === undefined || args === null) {
- return args;
- }
-
- if (arguments.length > 1) {
- args = Array.prototype.slice.call(arguments);
- }
-
- return fn(args);
- };
-
- // preserve .conversion property if there is one
- if ('conversion' in fn) {
- wrappedFn.conversion = fn.conversion;
- }
-
- return wrappedFn;
-}
-
-function wrapRounded(fn) {
- var wrappedFn = function (args) {
- if (args === undefined || args === null) {
- return args;
- }
-
- if (arguments.length > 1) {
- args = Array.prototype.slice.call(arguments);
- }
-
- var result = fn(args);
-
- // we're assuming the result is an array here.
- // see notice in conversions.js; don't use box types
- // in conversion functions.
- if (typeof result === 'object') {
- for (var len = result.length, i = 0; i < len; i++) {
- result[i] = Math.round(result[i]);
- }
- }
-
- return result;
- };
-
- // preserve .conversion property if there is one
- if ('conversion' in fn) {
- wrappedFn.conversion = fn.conversion;
- }
-
- return wrappedFn;
-}
-
-models.forEach(function (fromModel) {
- convert[fromModel] = {};
-
- Object.defineProperty(convert[fromModel], 'channels', {value: conversions[fromModel].channels});
- Object.defineProperty(convert[fromModel], 'labels', {value: conversions[fromModel].labels});
-
- var routes = route(fromModel);
- var routeModels = Object.keys(routes);
-
- routeModels.forEach(function (toModel) {
- var fn = routes[toModel];
-
- convert[fromModel][toModel] = wrapRounded(fn);
- convert[fromModel][toModel].raw = wrapRaw(fn);
- });
-});
-
-var colorConvert = convert;
-
-var colorName$1 = {
- "aliceblue": [240, 248, 255],
- "antiquewhite": [250, 235, 215],
- "aqua": [0, 255, 255],
- "aquamarine": [127, 255, 212],
- "azure": [240, 255, 255],
- "beige": [245, 245, 220],
- "bisque": [255, 228, 196],
- "black": [0, 0, 0],
- "blanchedalmond": [255, 235, 205],
- "blue": [0, 0, 255],
- "blueviolet": [138, 43, 226],
- "brown": [165, 42, 42],
- "burlywood": [222, 184, 135],
- "cadetblue": [95, 158, 160],
- "chartreuse": [127, 255, 0],
- "chocolate": [210, 105, 30],
- "coral": [255, 127, 80],
- "cornflowerblue": [100, 149, 237],
- "cornsilk": [255, 248, 220],
- "crimson": [220, 20, 60],
- "cyan": [0, 255, 255],
- "darkblue": [0, 0, 139],
- "darkcyan": [0, 139, 139],
- "darkgoldenrod": [184, 134, 11],
- "darkgray": [169, 169, 169],
- "darkgreen": [0, 100, 0],
- "darkgrey": [169, 169, 169],
- "darkkhaki": [189, 183, 107],
- "darkmagenta": [139, 0, 139],
- "darkolivegreen": [85, 107, 47],
- "darkorange": [255, 140, 0],
- "darkorchid": [153, 50, 204],
- "darkred": [139, 0, 0],
- "darksalmon": [233, 150, 122],
- "darkseagreen": [143, 188, 143],
- "darkslateblue": [72, 61, 139],
- "darkslategray": [47, 79, 79],
- "darkslategrey": [47, 79, 79],
- "darkturquoise": [0, 206, 209],
- "darkviolet": [148, 0, 211],
- "deeppink": [255, 20, 147],
- "deepskyblue": [0, 191, 255],
- "dimgray": [105, 105, 105],
- "dimgrey": [105, 105, 105],
- "dodgerblue": [30, 144, 255],
- "firebrick": [178, 34, 34],
- "floralwhite": [255, 250, 240],
- "forestgreen": [34, 139, 34],
- "fuchsia": [255, 0, 255],
- "gainsboro": [220, 220, 220],
- "ghostwhite": [248, 248, 255],
- "gold": [255, 215, 0],
- "goldenrod": [218, 165, 32],
- "gray": [128, 128, 128],
- "green": [0, 128, 0],
- "greenyellow": [173, 255, 47],
- "grey": [128, 128, 128],
- "honeydew": [240, 255, 240],
- "hotpink": [255, 105, 180],
- "indianred": [205, 92, 92],
- "indigo": [75, 0, 130],
- "ivory": [255, 255, 240],
- "khaki": [240, 230, 140],
- "lavender": [230, 230, 250],
- "lavenderblush": [255, 240, 245],
- "lawngreen": [124, 252, 0],
- "lemonchiffon": [255, 250, 205],
- "lightblue": [173, 216, 230],
- "lightcoral": [240, 128, 128],
- "lightcyan": [224, 255, 255],
- "lightgoldenrodyellow": [250, 250, 210],
- "lightgray": [211, 211, 211],
- "lightgreen": [144, 238, 144],
- "lightgrey": [211, 211, 211],
- "lightpink": [255, 182, 193],
- "lightsalmon": [255, 160, 122],
- "lightseagreen": [32, 178, 170],
- "lightskyblue": [135, 206, 250],
- "lightslategray": [119, 136, 153],
- "lightslategrey": [119, 136, 153],
- "lightsteelblue": [176, 196, 222],
- "lightyellow": [255, 255, 224],
- "lime": [0, 255, 0],
- "limegreen": [50, 205, 50],
- "linen": [250, 240, 230],
- "magenta": [255, 0, 255],
- "maroon": [128, 0, 0],
- "mediumaquamarine": [102, 205, 170],
- "mediumblue": [0, 0, 205],
- "mediumorchid": [186, 85, 211],
- "mediumpurple": [147, 112, 219],
- "mediumseagreen": [60, 179, 113],
- "mediumslateblue": [123, 104, 238],
- "mediumspringgreen": [0, 250, 154],
- "mediumturquoise": [72, 209, 204],
- "mediumvioletred": [199, 21, 133],
- "midnightblue": [25, 25, 112],
- "mintcream": [245, 255, 250],
- "mistyrose": [255, 228, 225],
- "moccasin": [255, 228, 181],
- "navajowhite": [255, 222, 173],
- "navy": [0, 0, 128],
- "oldlace": [253, 245, 230],
- "olive": [128, 128, 0],
- "olivedrab": [107, 142, 35],
- "orange": [255, 165, 0],
- "orangered": [255, 69, 0],
- "orchid": [218, 112, 214],
- "palegoldenrod": [238, 232, 170],
- "palegreen": [152, 251, 152],
- "paleturquoise": [175, 238, 238],
- "palevioletred": [219, 112, 147],
- "papayawhip": [255, 239, 213],
- "peachpuff": [255, 218, 185],
- "peru": [205, 133, 63],
- "pink": [255, 192, 203],
- "plum": [221, 160, 221],
- "powderblue": [176, 224, 230],
- "purple": [128, 0, 128],
- "rebeccapurple": [102, 51, 153],
- "red": [255, 0, 0],
- "rosybrown": [188, 143, 143],
- "royalblue": [65, 105, 225],
- "saddlebrown": [139, 69, 19],
- "salmon": [250, 128, 114],
- "sandybrown": [244, 164, 96],
- "seagreen": [46, 139, 87],
- "seashell": [255, 245, 238],
- "sienna": [160, 82, 45],
- "silver": [192, 192, 192],
- "skyblue": [135, 206, 235],
- "slateblue": [106, 90, 205],
- "slategray": [112, 128, 144],
- "slategrey": [112, 128, 144],
- "snow": [255, 250, 250],
- "springgreen": [0, 255, 127],
- "steelblue": [70, 130, 180],
- "tan": [210, 180, 140],
- "teal": [0, 128, 128],
- "thistle": [216, 191, 216],
- "tomato": [255, 99, 71],
- "turquoise": [64, 224, 208],
- "violet": [238, 130, 238],
- "wheat": [245, 222, 179],
- "white": [255, 255, 255],
- "whitesmoke": [245, 245, 245],
- "yellow": [255, 255, 0],
- "yellowgreen": [154, 205, 50]
-};
-
-/* MIT license */
-
-
-var colorString = {
- getRgba: getRgba,
- getHsla: getHsla,
- getRgb: getRgb,
- getHsl: getHsl,
- getHwb: getHwb,
- getAlpha: getAlpha,
-
- hexString: hexString,
- rgbString: rgbString,
- rgbaString: rgbaString,
- percentString: percentString,
- percentaString: percentaString,
- hslString: hslString,
- hslaString: hslaString,
- hwbString: hwbString,
- keyword: keyword
-};
-
-function getRgba(string) {
- if (!string) {
- return;
- }
- var abbr = /^#([a-fA-F0-9]{3,4})$/i,
- hex = /^#([a-fA-F0-9]{6}([a-fA-F0-9]{2})?)$/i,
- rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
- per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
- keyword = /(\w+)/;
-
- var rgb = [0, 0, 0],
- a = 1,
- match = string.match(abbr),
- hexAlpha = "";
- if (match) {
- match = match[1];
- hexAlpha = match[3];
- for (var i = 0; i < rgb.length; i++) {
- rgb[i] = parseInt(match[i] + match[i], 16);
- }
- if (hexAlpha) {
- a = Math.round((parseInt(hexAlpha + hexAlpha, 16) / 255) * 100) / 100;
- }
- }
- else if (match = string.match(hex)) {
- hexAlpha = match[2];
- match = match[1];
- for (var i = 0; i < rgb.length; i++) {
- rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16);
- }
- if (hexAlpha) {
- a = Math.round((parseInt(hexAlpha, 16) / 255) * 100) / 100;
- }
- }
- else if (match = string.match(rgba)) {
- for (var i = 0; i < rgb.length; i++) {
- rgb[i] = parseInt(match[i + 1]);
- }
- a = parseFloat(match[4]);
- }
- else if (match = string.match(per)) {
- for (var i = 0; i < rgb.length; i++) {
- rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);
- }
- a = parseFloat(match[4]);
- }
- else if (match = string.match(keyword)) {
- if (match[1] == "transparent") {
- return [0, 0, 0, 0];
- }
- rgb = colorName$1[match[1]];
- if (!rgb) {
- return;
- }
- }
-
- for (var i = 0; i < rgb.length; i++) {
- rgb[i] = scale(rgb[i], 0, 255);
- }
- if (!a && a != 0) {
- a = 1;
- }
- else {
- a = scale(a, 0, 1);
- }
- rgb[3] = a;
- return rgb;
-}
-
-function getHsla(string) {
- if (!string) {
- return;
- }
- var hsl = /^hsla?\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
- var match = string.match(hsl);
- if (match) {
- var alpha = parseFloat(match[4]);
- var h = scale(parseInt(match[1]), 0, 360),
- s = scale(parseFloat(match[2]), 0, 100),
- l = scale(parseFloat(match[3]), 0, 100),
- a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
- return [h, s, l, a];
- }
-}
-
-function getHwb(string) {
- if (!string) {
- return;
- }
- var hwb = /^hwb\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
- var match = string.match(hwb);
- if (match) {
- var alpha = parseFloat(match[4]);
- var h = scale(parseInt(match[1]), 0, 360),
- w = scale(parseFloat(match[2]), 0, 100),
- b = scale(parseFloat(match[3]), 0, 100),
- a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
- return [h, w, b, a];
- }
-}
-
-function getRgb(string) {
- var rgba = getRgba(string);
- return rgba && rgba.slice(0, 3);
-}
-
-function getHsl(string) {
- var hsla = getHsla(string);
- return hsla && hsla.slice(0, 3);
-}
-
-function getAlpha(string) {
- var vals = getRgba(string);
- if (vals) {
- return vals[3];
- }
- else if (vals = getHsla(string)) {
- return vals[3];
- }
- else if (vals = getHwb(string)) {
- return vals[3];
- }
-}
-
-// generators
-function hexString(rgba, a) {
- var a = (a !== undefined && rgba.length === 3) ? a : rgba[3];
- return "#" + hexDouble(rgba[0])
- + hexDouble(rgba[1])
- + hexDouble(rgba[2])
- + (
- (a >= 0 && a < 1)
- ? hexDouble(Math.round(a * 255))
- : ""
- );
-}
-
-function rgbString(rgba, alpha) {
- if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
- return rgbaString(rgba, alpha);
- }
- return "rgb(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ")";
-}
-
-function rgbaString(rgba, alpha) {
- if (alpha === undefined) {
- alpha = (rgba[3] !== undefined ? rgba[3] : 1);
- }
- return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2]
- + ", " + alpha + ")";
-}
-
-function percentString(rgba, alpha) {
- if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
- return percentaString(rgba, alpha);
- }
- var r = Math.round(rgba[0]/255 * 100),
- g = Math.round(rgba[1]/255 * 100),
- b = Math.round(rgba[2]/255 * 100);
-
- return "rgb(" + r + "%, " + g + "%, " + b + "%)";
-}
-
-function percentaString(rgba, alpha) {
- var r = Math.round(rgba[0]/255 * 100),
- g = Math.round(rgba[1]/255 * 100),
- b = Math.round(rgba[2]/255 * 100);
- return "rgba(" + r + "%, " + g + "%, " + b + "%, " + (alpha || rgba[3] || 1) + ")";
-}
-
-function hslString(hsla, alpha) {
- if (alpha < 1 || (hsla[3] && hsla[3] < 1)) {
- return hslaString(hsla, alpha);
- }
- return "hsl(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%)";
-}
-
-function hslaString(hsla, alpha) {
- if (alpha === undefined) {
- alpha = (hsla[3] !== undefined ? hsla[3] : 1);
- }
- return "hsla(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%, "
- + alpha + ")";
-}
-
-// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax
-// (hwb have alpha optional & 1 is default value)
-function hwbString(hwb, alpha) {
- if (alpha === undefined) {
- alpha = (hwb[3] !== undefined ? hwb[3] : 1);
- }
- return "hwb(" + hwb[0] + ", " + hwb[1] + "%, " + hwb[2] + "%"
- + (alpha !== undefined && alpha !== 1 ? ", " + alpha : "") + ")";
-}
-
-function keyword(rgb) {
- return reverseNames[rgb.slice(0, 3)];
-}
-
-// helpers
-function scale(num, min, max) {
- return Math.min(Math.max(min, num), max);
-}
-
-function hexDouble(num) {
- var str = num.toString(16).toUpperCase();
- return (str.length < 2) ? "0" + str : str;
-}
-
-
-//create a list of reverse color names
-var reverseNames = {};
-for (var name in colorName$1) {
- reverseNames[colorName$1[name]] = name;
-}
-
-/* MIT license */
-
-
-
-var Color = function (obj) {
- if (obj instanceof Color) {
- return obj;
- }
- if (!(this instanceof Color)) {
- return new Color(obj);
- }
-
- this.valid = false;
- this.values = {
- rgb: [0, 0, 0],
- hsl: [0, 0, 0],
- hsv: [0, 0, 0],
- hwb: [0, 0, 0],
- cmyk: [0, 0, 0, 0],
- alpha: 1
- };
-
- // parse Color() argument
- var vals;
- if (typeof obj === 'string') {
- vals = colorString.getRgba(obj);
- if (vals) {
- this.setValues('rgb', vals);
- } else if (vals = colorString.getHsla(obj)) {
- this.setValues('hsl', vals);
- } else if (vals = colorString.getHwb(obj)) {
- this.setValues('hwb', vals);
- }
- } else if (typeof obj === 'object') {
- vals = obj;
- if (vals.r !== undefined || vals.red !== undefined) {
- this.setValues('rgb', vals);
- } else if (vals.l !== undefined || vals.lightness !== undefined) {
- this.setValues('hsl', vals);
- } else if (vals.v !== undefined || vals.value !== undefined) {
- this.setValues('hsv', vals);
- } else if (vals.w !== undefined || vals.whiteness !== undefined) {
- this.setValues('hwb', vals);
- } else if (vals.c !== undefined || vals.cyan !== undefined) {
- this.setValues('cmyk', vals);
- }
- }
-};
-
-Color.prototype = {
- isValid: function () {
- return this.valid;
- },
- rgb: function () {
- return this.setSpace('rgb', arguments);
- },
- hsl: function () {
- return this.setSpace('hsl', arguments);
- },
- hsv: function () {
- return this.setSpace('hsv', arguments);
- },
- hwb: function () {
- return this.setSpace('hwb', arguments);
- },
- cmyk: function () {
- return this.setSpace('cmyk', arguments);
- },
-
- rgbArray: function () {
- return this.values.rgb;
- },
- hslArray: function () {
- return this.values.hsl;
- },
- hsvArray: function () {
- return this.values.hsv;
- },
- hwbArray: function () {
- var values = this.values;
- if (values.alpha !== 1) {
- return values.hwb.concat([values.alpha]);
- }
- return values.hwb;
- },
- cmykArray: function () {
- return this.values.cmyk;
- },
- rgbaArray: function () {
- var values = this.values;
- return values.rgb.concat([values.alpha]);
- },
- hslaArray: function () {
- var values = this.values;
- return values.hsl.concat([values.alpha]);
- },
- alpha: function (val) {
- if (val === undefined) {
- return this.values.alpha;
- }
- this.setValues('alpha', val);
- return this;
- },
-
- red: function (val) {
- return this.setChannel('rgb', 0, val);
- },
- green: function (val) {
- return this.setChannel('rgb', 1, val);
- },
- blue: function (val) {
- return this.setChannel('rgb', 2, val);
- },
- hue: function (val) {
- if (val) {
- val %= 360;
- val = val < 0 ? 360 + val : val;
- }
- return this.setChannel('hsl', 0, val);
- },
- saturation: function (val) {
- return this.setChannel('hsl', 1, val);
- },
- lightness: function (val) {
- return this.setChannel('hsl', 2, val);
- },
- saturationv: function (val) {
- return this.setChannel('hsv', 1, val);
- },
- whiteness: function (val) {
- return this.setChannel('hwb', 1, val);
- },
- blackness: function (val) {
- return this.setChannel('hwb', 2, val);
- },
- value: function (val) {
- return this.setChannel('hsv', 2, val);
- },
- cyan: function (val) {
- return this.setChannel('cmyk', 0, val);
- },
- magenta: function (val) {
- return this.setChannel('cmyk', 1, val);
- },
- yellow: function (val) {
- return this.setChannel('cmyk', 2, val);
- },
- black: function (val) {
- return this.setChannel('cmyk', 3, val);
- },
-
- hexString: function () {
- return colorString.hexString(this.values.rgb);
- },
- rgbString: function () {
- return colorString.rgbString(this.values.rgb, this.values.alpha);
- },
- rgbaString: function () {
- return colorString.rgbaString(this.values.rgb, this.values.alpha);
- },
- percentString: function () {
- return colorString.percentString(this.values.rgb, this.values.alpha);
- },
- hslString: function () {
- return colorString.hslString(this.values.hsl, this.values.alpha);
- },
- hslaString: function () {
- return colorString.hslaString(this.values.hsl, this.values.alpha);
- },
- hwbString: function () {
- return colorString.hwbString(this.values.hwb, this.values.alpha);
- },
- keyword: function () {
- return colorString.keyword(this.values.rgb, this.values.alpha);
- },
-
- rgbNumber: function () {
- var rgb = this.values.rgb;
- return (rgb[0] << 16) | (rgb[1] << 8) | rgb[2];
- },
-
- luminosity: function () {
- // http://www.w3.org/TR/WCAG20/#relativeluminancedef
- var rgb = this.values.rgb;
- var lum = [];
- for (var i = 0; i < rgb.length; i++) {
- var chan = rgb[i] / 255;
- lum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4);
- }
- return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2];
- },
-
- contrast: function (color2) {
- // http://www.w3.org/TR/WCAG20/#contrast-ratiodef
- var lum1 = this.luminosity();
- var lum2 = color2.luminosity();
- if (lum1 > lum2) {
- return (lum1 + 0.05) / (lum2 + 0.05);
- }
- return (lum2 + 0.05) / (lum1 + 0.05);
- },
-
- level: function (color2) {
- var contrastRatio = this.contrast(color2);
- if (contrastRatio >= 7.1) {
- return 'AAA';
- }
-
- return (contrastRatio >= 4.5) ? 'AA' : '';
- },
-
- dark: function () {
- // YIQ equation from http://24ways.org/2010/calculating-color-contrast
- var rgb = this.values.rgb;
- var yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000;
- return yiq < 128;
- },
-
- light: function () {
- return !this.dark();
- },
-
- negate: function () {
- var rgb = [];
- for (var i = 0; i < 3; i++) {
- rgb[i] = 255 - this.values.rgb[i];
- }
- this.setValues('rgb', rgb);
- return this;
- },
-
- lighten: function (ratio) {
- var hsl = this.values.hsl;
- hsl[2] += hsl[2] * ratio;
- this.setValues('hsl', hsl);
- return this;
- },
-
- darken: function (ratio) {
- var hsl = this.values.hsl;
- hsl[2] -= hsl[2] * ratio;
- this.setValues('hsl', hsl);
- return this;
- },
-
- saturate: function (ratio) {
- var hsl = this.values.hsl;
- hsl[1] += hsl[1] * ratio;
- this.setValues('hsl', hsl);
- return this;
- },
-
- desaturate: function (ratio) {
- var hsl = this.values.hsl;
- hsl[1] -= hsl[1] * ratio;
- this.setValues('hsl', hsl);
- return this;
- },
-
- whiten: function (ratio) {
- var hwb = this.values.hwb;
- hwb[1] += hwb[1] * ratio;
- this.setValues('hwb', hwb);
- return this;
- },
-
- blacken: function (ratio) {
- var hwb = this.values.hwb;
- hwb[2] += hwb[2] * ratio;
- this.setValues('hwb', hwb);
- return this;
- },
-
- greyscale: function () {
- var rgb = this.values.rgb;
- // http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale
- var val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11;
- this.setValues('rgb', [val, val, val]);
- return this;
- },
-
- clearer: function (ratio) {
- var alpha = this.values.alpha;
- this.setValues('alpha', alpha - (alpha * ratio));
- return this;
- },
-
- opaquer: function (ratio) {
- var alpha = this.values.alpha;
- this.setValues('alpha', alpha + (alpha * ratio));
- return this;
- },
-
- rotate: function (degrees) {
- var hsl = this.values.hsl;
- var hue = (hsl[0] + degrees) % 360;
- hsl[0] = hue < 0 ? 360 + hue : hue;
- this.setValues('hsl', hsl);
- return this;
- },
-
- /**
- * Ported from sass implementation in C
- * https://github.com/sass/libsass/blob/0e6b4a2850092356aa3ece07c6b249f0221caced/functions.cpp#L209
- */
- mix: function (mixinColor, weight) {
- var color1 = this;
- var color2 = mixinColor;
- var p = weight === undefined ? 0.5 : weight;
-
- var w = 2 * p - 1;
- var a = color1.alpha() - color2.alpha();
-
- var w1 = (((w * a === -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
- var w2 = 1 - w1;
-
- return this
- .rgb(
- w1 * color1.red() + w2 * color2.red(),
- w1 * color1.green() + w2 * color2.green(),
- w1 * color1.blue() + w2 * color2.blue()
- )
- .alpha(color1.alpha() * p + color2.alpha() * (1 - p));
- },
-
- toJSON: function () {
- return this.rgb();
- },
-
- clone: function () {
- // NOTE(SB): using node-clone creates a dependency to Buffer when using browserify,
- // making the final build way to big to embed in Chart.js. So let's do it manually,
- // assuming that values to clone are 1 dimension arrays containing only numbers,
- // except 'alpha' which is a number.
- var result = new Color();
- var source = this.values;
- var target = result.values;
- var value, type;
-
- for (var prop in source) {
- if (source.hasOwnProperty(prop)) {
- value = source[prop];
- type = ({}).toString.call(value);
- if (type === '[object Array]') {
- target[prop] = value.slice(0);
- } else if (type === '[object Number]') {
- target[prop] = value;
- } else {
- console.error('unexpected color value:', value);
- }
- }
- }
-
- return result;
- }
-};
-
-Color.prototype.spaces = {
- rgb: ['red', 'green', 'blue'],
- hsl: ['hue', 'saturation', 'lightness'],
- hsv: ['hue', 'saturation', 'value'],
- hwb: ['hue', 'whiteness', 'blackness'],
- cmyk: ['cyan', 'magenta', 'yellow', 'black']
-};
-
-Color.prototype.maxes = {
- rgb: [255, 255, 255],
- hsl: [360, 100, 100],
- hsv: [360, 100, 100],
- hwb: [360, 100, 100],
- cmyk: [100, 100, 100, 100]
-};
-
-Color.prototype.getValues = function (space) {
- var values = this.values;
- var vals = {};
-
- for (var i = 0; i < space.length; i++) {
- vals[space.charAt(i)] = values[space][i];
- }
-
- if (values.alpha !== 1) {
- vals.a = values.alpha;
- }
-
- // {r: 255, g: 255, b: 255, a: 0.4}
- return vals;
-};
-
-Color.prototype.setValues = function (space, vals) {
- var values = this.values;
- var spaces = this.spaces;
- var maxes = this.maxes;
- var alpha = 1;
- var i;
-
- this.valid = true;
-
- if (space === 'alpha') {
- alpha = vals;
- } else if (vals.length) {
- // [10, 10, 10]
- values[space] = vals.slice(0, space.length);
- alpha = vals[space.length];
- } else if (vals[space.charAt(0)] !== undefined) {
- // {r: 10, g: 10, b: 10}
- for (i = 0; i < space.length; i++) {
- values[space][i] = vals[space.charAt(i)];
- }
-
- alpha = vals.a;
- } else if (vals[spaces[space][0]] !== undefined) {
- // {red: 10, green: 10, blue: 10}
- var chans = spaces[space];
-
- for (i = 0; i < space.length; i++) {
- values[space][i] = vals[chans[i]];
- }
-
- alpha = vals.alpha;
- }
-
- values.alpha = Math.max(0, Math.min(1, (alpha === undefined ? values.alpha : alpha)));
-
- if (space === 'alpha') {
- return false;
- }
-
- var capped;
-
- // cap values of the space prior converting all values
- for (i = 0; i < space.length; i++) {
- capped = Math.max(0, Math.min(maxes[space][i], values[space][i]));
- values[space][i] = Math.round(capped);
- }
-
- // convert to all the other color spaces
- for (var sname in spaces) {
- if (sname !== space) {
- values[sname] = colorConvert[space][sname](values[space]);
- }
- }
-
- return true;
-};
-
-Color.prototype.setSpace = function (space, args) {
- var vals = args[0];
-
- if (vals === undefined) {
- // color.rgb()
- return this.getValues(space);
- }
-
- // color.rgb(10, 10, 10)
- if (typeof vals === 'number') {
- vals = Array.prototype.slice.call(args);
- }
-
- this.setValues(space, vals);
- return this;
-};
-
-Color.prototype.setChannel = function (space, index, val) {
- var svalues = this.values[space];
- if (val === undefined) {
- // color.red()
- return svalues[index];
- } else if (val === svalues[index]) {
- // color.red(color.red())
- return this;
- }
-
- // color.red(100)
- svalues[index] = val;
- this.setValues(space, svalues);
-
- return this;
-};
-
-if (typeof window !== 'undefined') {
- window.Color = Color;
-}
-
-var chartjsColor = Color;
-
-/**
- * @namespace Chart.helpers
- */
-var helpers = {
- /**
- * An empty function that can be used, for example, for optional callback.
- */
- noop: function() {},
-
- /**
- * Returns a unique id, sequentially generated from a global variable.
- * @returns {number}
- * @function
- */
- uid: (function() {
- var id = 0;
- return function() {
- return id++;
- };
- }()),
-
- /**
- * Returns true if `value` is neither null nor undefined, else returns false.
- * @param {*} value - The value to test.
- * @returns {boolean}
- * @since 2.7.0
- */
- isNullOrUndef: function(value) {
- return value === null || typeof value === 'undefined';
- },
-
- /**
- * Returns true if `value` is an array (including typed arrays), else returns false.
- * @param {*} value - The value to test.
- * @returns {boolean}
- * @function
- */
- isArray: function(value) {
- if (Array.isArray && Array.isArray(value)) {
- return true;
- }
- var type = Object.prototype.toString.call(value);
- if (type.substr(0, 7) === '[object' && type.substr(-6) === 'Array]') {
- return true;
- }
- return false;
- },
-
- /**
- * Returns true if `value` is an object (excluding null), else returns false.
- * @param {*} value - The value to test.
- * @returns {boolean}
- * @since 2.7.0
- */
- isObject: function(value) {
- return value !== null && Object.prototype.toString.call(value) === '[object Object]';
- },
-
- /**
- * Returns true if `value` is a finite number, else returns false
- * @param {*} value - The value to test.
- * @returns {boolean}
- */
- isFinite: function(value) {
- return (typeof value === 'number' || value instanceof Number) && isFinite(value);
- },
-
- /**
- * Returns `value` if defined, else returns `defaultValue`.
- * @param {*} value - The value to return if defined.
- * @param {*} defaultValue - The value to return if `value` is undefined.
- * @returns {*}
- */
- valueOrDefault: function(value, defaultValue) {
- return typeof value === 'undefined' ? defaultValue : value;
- },
-
- /**
- * Returns value at the given `index` in array if defined, else returns `defaultValue`.
- * @param {Array} value - The array to lookup for value at `index`.
- * @param {number} index - The index in `value` to lookup for value.
- * @param {*} defaultValue - The value to return if `value[index]` is undefined.
- * @returns {*}
- */
- valueAtIndexOrDefault: function(value, index, defaultValue) {
- return helpers.valueOrDefault(helpers.isArray(value) ? value[index] : value, defaultValue);
- },
-
- /**
- * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the
- * value returned by `fn`. If `fn` is not a function, this method returns undefined.
- * @param {function} fn - The function to call.
- * @param {Array|undefined|null} args - The arguments with which `fn` should be called.
- * @param {object} [thisArg] - The value of `this` provided for the call to `fn`.
- * @returns {*}
- */
- callback: function(fn, args, thisArg) {
- if (fn && typeof fn.call === 'function') {
- return fn.apply(thisArg, args);
- }
- },
-
- /**
- * Note(SB) for performance sake, this method should only be used when loopable type
- * is unknown or in none intensive code (not called often and small loopable). Else
- * it's preferable to use a regular for() loop and save extra function calls.
- * @param {object|Array} loopable - The object or array to be iterated.
- * @param {function} fn - The function to call for each item.
- * @param {object} [thisArg] - The value of `this` provided for the call to `fn`.
- * @param {boolean} [reverse] - If true, iterates backward on the loopable.
- */
- each: function(loopable, fn, thisArg, reverse) {
- var i, len, keys;
- if (helpers.isArray(loopable)) {
- len = loopable.length;
- if (reverse) {
- for (i = len - 1; i >= 0; i--) {
- fn.call(thisArg, loopable[i], i);
- }
- } else {
- for (i = 0; i < len; i++) {
- fn.call(thisArg, loopable[i], i);
- }
- }
- } else if (helpers.isObject(loopable)) {
- keys = Object.keys(loopable);
- len = keys.length;
- for (i = 0; i < len; i++) {
- fn.call(thisArg, loopable[keys[i]], keys[i]);
- }
- }
- },
-
- /**
- * Returns true if the `a0` and `a1` arrays have the same content, else returns false.
- * @see https://stackoverflow.com/a/14853974
- * @param {Array} a0 - The array to compare
- * @param {Array} a1 - The array to compare
- * @returns {boolean}
- */
- arrayEquals: function(a0, a1) {
- var i, ilen, v0, v1;
-
- if (!a0 || !a1 || a0.length !== a1.length) {
- return false;
- }
-
- for (i = 0, ilen = a0.length; i < ilen; ++i) {
- v0 = a0[i];
- v1 = a1[i];
-
- if (v0 instanceof Array && v1 instanceof Array) {
- if (!helpers.arrayEquals(v0, v1)) {
- return false;
- }
- } else if (v0 !== v1) {
- // NOTE: two different object instances will never be equal: {x:20} != {x:20}
- return false;
- }
- }
-
- return true;
- },
-
- /**
- * Returns a deep copy of `source` without keeping references on objects and arrays.
- * @param {*} source - The value to clone.
- * @returns {*}
- */
- clone: function(source) {
- if (helpers.isArray(source)) {
- return source.map(helpers.clone);
- }
-
- if (helpers.isObject(source)) {
- var target = {};
- var keys = Object.keys(source);
- var klen = keys.length;
- var k = 0;
-
- for (; k < klen; ++k) {
- target[keys[k]] = helpers.clone(source[keys[k]]);
- }
-
- return target;
- }
-
- return source;
- },
-
- /**
- * The default merger when Chart.helpers.merge is called without merger option.
- * Note(SB): also used by mergeConfig and mergeScaleConfig as fallback.
- * @private
- */
- _merger: function(key, target, source, options) {
- var tval = target[key];
- var sval = source[key];
-
- if (helpers.isObject(tval) && helpers.isObject(sval)) {
- helpers.merge(tval, sval, options);
- } else {
- target[key] = helpers.clone(sval);
- }
- },
-
- /**
- * Merges source[key] in target[key] only if target[key] is undefined.
- * @private
- */
- _mergerIf: function(key, target, source) {
- var tval = target[key];
- var sval = source[key];
-
- if (helpers.isObject(tval) && helpers.isObject(sval)) {
- helpers.mergeIf(tval, sval);
- } else if (!target.hasOwnProperty(key)) {
- target[key] = helpers.clone(sval);
- }
- },
-
- /**
- * Recursively deep copies `source` properties into `target` with the given `options`.
- * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
- * @param {object} target - The target object in which all sources are merged into.
- * @param {object|object[]} source - Object(s) to merge into `target`.
- * @param {object} [options] - Merging options:
- * @param {function} [options.merger] - The merge method (key, target, source, options)
- * @returns {object} The `target` object.
- */
- merge: function(target, source, options) {
- var sources = helpers.isArray(source) ? source : [source];
- var ilen = sources.length;
- var merge, i, keys, klen, k;
-
- if (!helpers.isObject(target)) {
- return target;
- }
-
- options = options || {};
- merge = options.merger || helpers._merger;
-
- for (i = 0; i < ilen; ++i) {
- source = sources[i];
- if (!helpers.isObject(source)) {
- continue;
- }
-
- keys = Object.keys(source);
- for (k = 0, klen = keys.length; k < klen; ++k) {
- merge(keys[k], target, source, options);
- }
- }
-
- return target;
- },
-
- /**
- * Recursively deep copies `source` properties into `target` *only* if not defined in target.
- * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
- * @param {object} target - The target object in which all sources are merged into.
- * @param {object|object[]} source - Object(s) to merge into `target`.
- * @returns {object} The `target` object.
- */
- mergeIf: function(target, source) {
- return helpers.merge(target, source, {merger: helpers._mergerIf});
- },
-
- /**
- * Applies the contents of two or more objects together into the first object.
- * @param {object} target - The target object in which all objects are merged into.
- * @param {object} arg1 - Object containing additional properties to merge in target.
- * @param {object} argN - Additional objects containing properties to merge in target.
- * @returns {object} The `target` object.
- */
- extend: Object.assign || function(target) {
- return helpers.merge(target, [].slice.call(arguments, 1), {
- merger: function(key, dst, src) {
- dst[key] = src[key];
- }
- });
- },
-
- /**
- * Basic javascript inheritance based on the model created in Backbone.js
- */
- inherits: function(extensions) {
- var me = this;
- var ChartElement = (extensions && extensions.hasOwnProperty('constructor')) ? extensions.constructor : function() {
- return me.apply(this, arguments);
- };
-
- var Surrogate = function() {
- this.constructor = ChartElement;
- };
-
- Surrogate.prototype = me.prototype;
- ChartElement.prototype = new Surrogate();
- ChartElement.extend = helpers.inherits;
-
- if (extensions) {
- helpers.extend(ChartElement.prototype, extensions);
- }
-
- ChartElement.__super__ = me.prototype;
- return ChartElement;
- },
-
- _deprecated: function(scope, value, previous, current) {
- if (value !== undefined) {
- console.warn(scope + ': "' + previous +
- '" is deprecated. Please use "' + current + '" instead');
- }
- }
-};
-
-var helpers_core = helpers;
-
-// DEPRECATIONS
-
-/**
- * Provided for backward compatibility, use Chart.helpers.callback instead.
- * @function Chart.helpers.callCallback
- * @deprecated since version 2.6.0
- * @todo remove at version 3
- * @private
- */
-helpers.callCallback = helpers.callback;
-
-/**
- * Provided for backward compatibility, use Array.prototype.indexOf instead.
- * Array.prototype.indexOf compatibility: Chrome, Opera, Safari, FF1.5+, IE9+
- * @function Chart.helpers.indexOf
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers.indexOf = function(array, item, fromIndex) {
- return Array.prototype.indexOf.call(array, item, fromIndex);
-};
-
-/**
- * Provided for backward compatibility, use Chart.helpers.valueOrDefault instead.
- * @function Chart.helpers.getValueOrDefault
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers.getValueOrDefault = helpers.valueOrDefault;
-
-/**
- * Provided for backward compatibility, use Chart.helpers.valueAtIndexOrDefault instead.
- * @function Chart.helpers.getValueAtIndexOrDefault
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers.getValueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
-
-/**
- * Easing functions adapted from Robert Penner's easing equations.
- * @namespace Chart.helpers.easingEffects
- * @see http://www.robertpenner.com/easing/
- */
-var effects = {
- linear: function(t) {
- return t;
- },
-
- easeInQuad: function(t) {
- return t * t;
- },
-
- easeOutQuad: function(t) {
- return -t * (t - 2);
- },
-
- easeInOutQuad: function(t) {
- if ((t /= 0.5) < 1) {
- return 0.5 * t * t;
- }
- return -0.5 * ((--t) * (t - 2) - 1);
- },
-
- easeInCubic: function(t) {
- return t * t * t;
- },
-
- easeOutCubic: function(t) {
- return (t = t - 1) * t * t + 1;
- },
-
- easeInOutCubic: function(t) {
- if ((t /= 0.5) < 1) {
- return 0.5 * t * t * t;
- }
- return 0.5 * ((t -= 2) * t * t + 2);
- },
-
- easeInQuart: function(t) {
- return t * t * t * t;
- },
-
- easeOutQuart: function(t) {
- return -((t = t - 1) * t * t * t - 1);
- },
-
- easeInOutQuart: function(t) {
- if ((t /= 0.5) < 1) {
- return 0.5 * t * t * t * t;
- }
- return -0.5 * ((t -= 2) * t * t * t - 2);
- },
-
- easeInQuint: function(t) {
- return t * t * t * t * t;
- },
-
- easeOutQuint: function(t) {
- return (t = t - 1) * t * t * t * t + 1;
- },
-
- easeInOutQuint: function(t) {
- if ((t /= 0.5) < 1) {
- return 0.5 * t * t * t * t * t;
- }
- return 0.5 * ((t -= 2) * t * t * t * t + 2);
- },
-
- easeInSine: function(t) {
- return -Math.cos(t * (Math.PI / 2)) + 1;
- },
-
- easeOutSine: function(t) {
- return Math.sin(t * (Math.PI / 2));
- },
-
- easeInOutSine: function(t) {
- return -0.5 * (Math.cos(Math.PI * t) - 1);
- },
-
- easeInExpo: function(t) {
- return (t === 0) ? 0 : Math.pow(2, 10 * (t - 1));
- },
-
- easeOutExpo: function(t) {
- return (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1;
- },
-
- easeInOutExpo: function(t) {
- if (t === 0) {
- return 0;
- }
- if (t === 1) {
- return 1;
- }
- if ((t /= 0.5) < 1) {
- return 0.5 * Math.pow(2, 10 * (t - 1));
- }
- return 0.5 * (-Math.pow(2, -10 * --t) + 2);
- },
-
- easeInCirc: function(t) {
- if (t >= 1) {
- return t;
- }
- return -(Math.sqrt(1 - t * t) - 1);
- },
-
- easeOutCirc: function(t) {
- return Math.sqrt(1 - (t = t - 1) * t);
- },
-
- easeInOutCirc: function(t) {
- if ((t /= 0.5) < 1) {
- return -0.5 * (Math.sqrt(1 - t * t) - 1);
- }
- return 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1);
- },
-
- easeInElastic: function(t) {
- var s = 1.70158;
- var p = 0;
- var a = 1;
- if (t === 0) {
- return 0;
- }
- if (t === 1) {
- return 1;
- }
- if (!p) {
- p = 0.3;
- }
- if (a < 1) {
- a = 1;
- s = p / 4;
- } else {
- s = p / (2 * Math.PI) * Math.asin(1 / a);
- }
- return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
- },
-
- easeOutElastic: function(t) {
- var s = 1.70158;
- var p = 0;
- var a = 1;
- if (t === 0) {
- return 0;
- }
- if (t === 1) {
- return 1;
- }
- if (!p) {
- p = 0.3;
- }
- if (a < 1) {
- a = 1;
- s = p / 4;
- } else {
- s = p / (2 * Math.PI) * Math.asin(1 / a);
- }
- return a * Math.pow(2, -10 * t) * Math.sin((t - s) * (2 * Math.PI) / p) + 1;
- },
-
- easeInOutElastic: function(t) {
- var s = 1.70158;
- var p = 0;
- var a = 1;
- if (t === 0) {
- return 0;
- }
- if ((t /= 0.5) === 2) {
- return 1;
- }
- if (!p) {
- p = 0.45;
- }
- if (a < 1) {
- a = 1;
- s = p / 4;
- } else {
- s = p / (2 * Math.PI) * Math.asin(1 / a);
- }
- if (t < 1) {
- return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
- }
- return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p) * 0.5 + 1;
- },
- easeInBack: function(t) {
- var s = 1.70158;
- return t * t * ((s + 1) * t - s);
- },
-
- easeOutBack: function(t) {
- var s = 1.70158;
- return (t = t - 1) * t * ((s + 1) * t + s) + 1;
- },
-
- easeInOutBack: function(t) {
- var s = 1.70158;
- if ((t /= 0.5) < 1) {
- return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s));
- }
- return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);
- },
-
- easeInBounce: function(t) {
- return 1 - effects.easeOutBounce(1 - t);
- },
-
- easeOutBounce: function(t) {
- if (t < (1 / 2.75)) {
- return 7.5625 * t * t;
- }
- if (t < (2 / 2.75)) {
- return 7.5625 * (t -= (1.5 / 2.75)) * t + 0.75;
- }
- if (t < (2.5 / 2.75)) {
- return 7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375;
- }
- return 7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375;
- },
-
- easeInOutBounce: function(t) {
- if (t < 0.5) {
- return effects.easeInBounce(t * 2) * 0.5;
- }
- return effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5;
- }
-};
-
-var helpers_easing = {
- effects: effects
-};
-
-// DEPRECATIONS
-
-/**
- * Provided for backward compatibility, use Chart.helpers.easing.effects instead.
- * @function Chart.helpers.easingEffects
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers_core.easingEffects = effects;
-
-var PI = Math.PI;
-var RAD_PER_DEG = PI / 180;
-var DOUBLE_PI = PI * 2;
-var HALF_PI = PI / 2;
-var QUARTER_PI = PI / 4;
-var TWO_THIRDS_PI = PI * 2 / 3;
-
-/**
- * @namespace Chart.helpers.canvas
- */
-var exports$1 = {
- /**
- * Clears the entire canvas associated to the given `chart`.
- * @param {Chart} chart - The chart for which to clear the canvas.
- */
- clear: function(chart) {
- chart.ctx.clearRect(0, 0, chart.width, chart.height);
- },
-
- /**
- * Creates a "path" for a rectangle with rounded corners at position (x, y) with a
- * given size (width, height) and the same `radius` for all corners.
- * @param {CanvasRenderingContext2D} ctx - The canvas 2D Context.
- * @param {number} x - The x axis of the coordinate for the rectangle starting point.
- * @param {number} y - The y axis of the coordinate for the rectangle starting point.
- * @param {number} width - The rectangle's width.
- * @param {number} height - The rectangle's height.
- * @param {number} radius - The rounded amount (in pixels) for the four corners.
- * @todo handle `radius` as top-left, top-right, bottom-right, bottom-left array/object?
- */
- roundedRect: function(ctx, x, y, width, height, radius) {
- if (radius) {
- var r = Math.min(radius, height / 2, width / 2);
- var left = x + r;
- var top = y + r;
- var right = x + width - r;
- var bottom = y + height - r;
-
- ctx.moveTo(x, top);
- if (left < right && top < bottom) {
- ctx.arc(left, top, r, -PI, -HALF_PI);
- ctx.arc(right, top, r, -HALF_PI, 0);
- ctx.arc(right, bottom, r, 0, HALF_PI);
- ctx.arc(left, bottom, r, HALF_PI, PI);
- } else if (left < right) {
- ctx.moveTo(left, y);
- ctx.arc(right, top, r, -HALF_PI, HALF_PI);
- ctx.arc(left, top, r, HALF_PI, PI + HALF_PI);
- } else if (top < bottom) {
- ctx.arc(left, top, r, -PI, 0);
- ctx.arc(left, bottom, r, 0, PI);
- } else {
- ctx.arc(left, top, r, -PI, PI);
- }
- ctx.closePath();
- ctx.moveTo(x, y);
- } else {
- ctx.rect(x, y, width, height);
- }
- },
-
- drawPoint: function(ctx, style, radius, x, y, rotation) {
- var type, xOffset, yOffset, size, cornerRadius;
- var rad = (rotation || 0) * RAD_PER_DEG;
-
- if (style && typeof style === 'object') {
- type = style.toString();
- if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {
- ctx.save();
- ctx.translate(x, y);
- ctx.rotate(rad);
- ctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height);
- ctx.restore();
- return;
- }
- }
-
- if (isNaN(radius) || radius <= 0) {
- return;
- }
-
- ctx.beginPath();
-
- switch (style) {
- // Default includes circle
- default:
- ctx.arc(x, y, radius, 0, DOUBLE_PI);
- ctx.closePath();
- break;
- case 'triangle':
- ctx.moveTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);
- rad += TWO_THIRDS_PI;
- ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);
- rad += TWO_THIRDS_PI;
- ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);
- ctx.closePath();
- break;
- case 'rectRounded':
- // NOTE: the rounded rect implementation changed to use `arc` instead of
- // `quadraticCurveTo` since it generates better results when rect is
- // almost a circle. 0.516 (instead of 0.5) produces results with visually
- // closer proportion to the previous impl and it is inscribed in the
- // circle with `radius`. For more details, see the following PRs:
- // https://github.com/chartjs/Chart.js/issues/5597
- // https://github.com/chartjs/Chart.js/issues/5858
- cornerRadius = radius * 0.516;
- size = radius - cornerRadius;
- xOffset = Math.cos(rad + QUARTER_PI) * size;
- yOffset = Math.sin(rad + QUARTER_PI) * size;
- ctx.arc(x - xOffset, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI);
- ctx.arc(x + yOffset, y - xOffset, cornerRadius, rad - HALF_PI, rad);
- ctx.arc(x + xOffset, y + yOffset, cornerRadius, rad, rad + HALF_PI);
- ctx.arc(x - yOffset, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI);
- ctx.closePath();
- break;
- case 'rect':
- if (!rotation) {
- size = Math.SQRT1_2 * radius;
- ctx.rect(x - size, y - size, 2 * size, 2 * size);
- break;
- }
- rad += QUARTER_PI;
- /* falls through */
- case 'rectRot':
- xOffset = Math.cos(rad) * radius;
- yOffset = Math.sin(rad) * radius;
- ctx.moveTo(x - xOffset, y - yOffset);
- ctx.lineTo(x + yOffset, y - xOffset);
- ctx.lineTo(x + xOffset, y + yOffset);
- ctx.lineTo(x - yOffset, y + xOffset);
- ctx.closePath();
- break;
- case 'crossRot':
- rad += QUARTER_PI;
- /* falls through */
- case 'cross':
- xOffset = Math.cos(rad) * radius;
- yOffset = Math.sin(rad) * radius;
- ctx.moveTo(x - xOffset, y - yOffset);
- ctx.lineTo(x + xOffset, y + yOffset);
- ctx.moveTo(x + yOffset, y - xOffset);
- ctx.lineTo(x - yOffset, y + xOffset);
- break;
- case 'star':
- xOffset = Math.cos(rad) * radius;
- yOffset = Math.sin(rad) * radius;
- ctx.moveTo(x - xOffset, y - yOffset);
- ctx.lineTo(x + xOffset, y + yOffset);
- ctx.moveTo(x + yOffset, y - xOffset);
- ctx.lineTo(x - yOffset, y + xOffset);
- rad += QUARTER_PI;
- xOffset = Math.cos(rad) * radius;
- yOffset = Math.sin(rad) * radius;
- ctx.moveTo(x - xOffset, y - yOffset);
- ctx.lineTo(x + xOffset, y + yOffset);
- ctx.moveTo(x + yOffset, y - xOffset);
- ctx.lineTo(x - yOffset, y + xOffset);
- break;
- case 'line':
- xOffset = Math.cos(rad) * radius;
- yOffset = Math.sin(rad) * radius;
- ctx.moveTo(x - xOffset, y - yOffset);
- ctx.lineTo(x + xOffset, y + yOffset);
- break;
- case 'dash':
- ctx.moveTo(x, y);
- ctx.lineTo(x + Math.cos(rad) * radius, y + Math.sin(rad) * radius);
- break;
- }
-
- ctx.fill();
- ctx.stroke();
- },
-
- /**
- * Returns true if the point is inside the rectangle
- * @param {object} point - The point to test
- * @param {object} area - The rectangle
- * @returns {boolean}
- * @private
- */
- _isPointInArea: function(point, area) {
- var epsilon = 1e-6; // 1e-6 is margin in pixels for accumulated error.
-
- return point.x > area.left - epsilon && point.x < area.right + epsilon &&
- point.y > area.top - epsilon && point.y < area.bottom + epsilon;
- },
-
- clipArea: function(ctx, area) {
- ctx.save();
- ctx.beginPath();
- ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);
- ctx.clip();
- },
-
- unclipArea: function(ctx) {
- ctx.restore();
- },
-
- lineTo: function(ctx, previous, target, flip) {
- var stepped = target.steppedLine;
- if (stepped) {
- if (stepped === 'middle') {
- var midpoint = (previous.x + target.x) / 2.0;
- ctx.lineTo(midpoint, flip ? target.y : previous.y);
- ctx.lineTo(midpoint, flip ? previous.y : target.y);
- } else if ((stepped === 'after' && !flip) || (stepped !== 'after' && flip)) {
- ctx.lineTo(previous.x, target.y);
- } else {
- ctx.lineTo(target.x, previous.y);
- }
- ctx.lineTo(target.x, target.y);
- return;
- }
-
- if (!target.tension) {
- ctx.lineTo(target.x, target.y);
- return;
- }
-
- ctx.bezierCurveTo(
- flip ? previous.controlPointPreviousX : previous.controlPointNextX,
- flip ? previous.controlPointPreviousY : previous.controlPointNextY,
- flip ? target.controlPointNextX : target.controlPointPreviousX,
- flip ? target.controlPointNextY : target.controlPointPreviousY,
- target.x,
- target.y);
- }
-};
-
-var helpers_canvas = exports$1;
-
-// DEPRECATIONS
-
-/**
- * Provided for backward compatibility, use Chart.helpers.canvas.clear instead.
- * @namespace Chart.helpers.clear
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers_core.clear = exports$1.clear;
-
-/**
- * Provided for backward compatibility, use Chart.helpers.canvas.roundedRect instead.
- * @namespace Chart.helpers.drawRoundedRectangle
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers_core.drawRoundedRectangle = function(ctx) {
- ctx.beginPath();
- exports$1.roundedRect.apply(exports$1, arguments);
-};
-
-var defaults = {
- /**
- * @private
- */
- _set: function(scope, values) {
- return helpers_core.merge(this[scope] || (this[scope] = {}), values);
- }
-};
-
-// TODO(v3): remove 'global' from namespace. all default are global and
-// there's inconsistency around which options are under 'global'
-defaults._set('global', {
- defaultColor: 'rgba(0,0,0,0.1)',
- defaultFontColor: '#666',
- defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
- defaultFontSize: 12,
- defaultFontStyle: 'normal',
- defaultLineHeight: 1.2,
- showLines: true
-});
-
-var core_defaults = defaults;
-
-var valueOrDefault = helpers_core.valueOrDefault;
-
-/**
- * Converts the given font object into a CSS font string.
- * @param {object} font - A font object.
- * @return {string} The CSS font string. See https://developer.mozilla.org/en-US/docs/Web/CSS/font
- * @private
- */
-function toFontString(font) {
- if (!font || helpers_core.isNullOrUndef(font.size) || helpers_core.isNullOrUndef(font.family)) {
- return null;
- }
-
- return (font.style ? font.style + ' ' : '')
- + (font.weight ? font.weight + ' ' : '')
- + font.size + 'px '
- + font.family;
-}
-
-/**
- * @alias Chart.helpers.options
- * @namespace
- */
-var helpers_options = {
- /**
- * Converts the given line height `value` in pixels for a specific font `size`.
- * @param {number|string} value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em').
- * @param {number} size - The font size (in pixels) used to resolve relative `value`.
- * @returns {number} The effective line height in pixels (size * 1.2 if value is invalid).
- * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height
- * @since 2.7.0
- */
- toLineHeight: function(value, size) {
- var matches = ('' + value).match(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/);
- if (!matches || matches[1] === 'normal') {
- return size * 1.2;
- }
-
- value = +matches[2];
-
- switch (matches[3]) {
- case 'px':
- return value;
- case '%':
- value /= 100;
- break;
- }
-
- return size * value;
- },
-
- /**
- * Converts the given value into a padding object with pre-computed width/height.
- * @param {number|object} value - If a number, set the value to all TRBL component,
- * else, if and object, use defined properties and sets undefined ones to 0.
- * @returns {object} The padding values (top, right, bottom, left, width, height)
- * @since 2.7.0
- */
- toPadding: function(value) {
- var t, r, b, l;
-
- if (helpers_core.isObject(value)) {
- t = +value.top || 0;
- r = +value.right || 0;
- b = +value.bottom || 0;
- l = +value.left || 0;
- } else {
- t = r = b = l = +value || 0;
- }
-
- return {
- top: t,
- right: r,
- bottom: b,
- left: l,
- height: t + b,
- width: l + r
- };
- },
-
- /**
- * Parses font options and returns the font object.
- * @param {object} options - A object that contains font options to be parsed.
- * @return {object} The font object.
- * @todo Support font.* options and renamed to toFont().
- * @private
- */
- _parseFont: function(options) {
- var globalDefaults = core_defaults.global;
- var size = valueOrDefault(options.fontSize, globalDefaults.defaultFontSize);
- var font = {
- family: valueOrDefault(options.fontFamily, globalDefaults.defaultFontFamily),
- lineHeight: helpers_core.options.toLineHeight(valueOrDefault(options.lineHeight, globalDefaults.defaultLineHeight), size),
- size: size,
- style: valueOrDefault(options.fontStyle, globalDefaults.defaultFontStyle),
- weight: null,
- string: ''
- };
-
- font.string = toFontString(font);
- return font;
- },
-
- /**
- * Evaluates the given `inputs` sequentially and returns the first defined value.
- * @param {Array} inputs - An array of values, falling back to the last value.
- * @param {object} [context] - If defined and the current value is a function, the value
- * is called with `context` as first argument and the result becomes the new input.
- * @param {number} [index] - If defined and the current value is an array, the value
- * at `index` become the new input.
- * @param {object} [info] - object to return information about resolution in
- * @param {boolean} [info.cacheable] - Will be set to `false` if option is not cacheable.
- * @since 2.7.0
- */
- resolve: function(inputs, context, index, info) {
- var cacheable = true;
- var i, ilen, value;
-
- for (i = 0, ilen = inputs.length; i < ilen; ++i) {
- value = inputs[i];
- if (value === undefined) {
- continue;
- }
- if (context !== undefined && typeof value === 'function') {
- value = value(context);
- cacheable = false;
- }
- if (index !== undefined && helpers_core.isArray(value)) {
- value = value[index];
- cacheable = false;
- }
- if (value !== undefined) {
- if (info && !cacheable) {
- info.cacheable = false;
- }
- return value;
- }
- }
- }
-};
-
-/**
- * @alias Chart.helpers.math
- * @namespace
- */
-var exports$2 = {
- /**
- * Returns an array of factors sorted from 1 to sqrt(value)
- * @private
- */
- _factorize: function(value) {
- var result = [];
- var sqrt = Math.sqrt(value);
- var i;
-
- for (i = 1; i < sqrt; i++) {
- if (value % i === 0) {
- result.push(i);
- result.push(value / i);
- }
- }
- if (sqrt === (sqrt | 0)) { // if value is a square number
- result.push(sqrt);
- }
-
- result.sort(function(a, b) {
- return a - b;
- }).pop();
- return result;
- },
-
- log10: Math.log10 || function(x) {
- var exponent = Math.log(x) * Math.LOG10E; // Math.LOG10E = 1 / Math.LN10.
- // Check for whole powers of 10,
- // which due to floating point rounding error should be corrected.
- var powerOf10 = Math.round(exponent);
- var isPowerOf10 = x === Math.pow(10, powerOf10);
-
- return isPowerOf10 ? powerOf10 : exponent;
- }
-};
-
-var helpers_math = exports$2;
-
-// DEPRECATIONS
-
-/**
- * Provided for backward compatibility, use Chart.helpers.math.log10 instead.
- * @namespace Chart.helpers.log10
- * @deprecated since version 2.9.0
- * @todo remove at version 3
- * @private
- */
-helpers_core.log10 = exports$2.log10;
-
-var getRtlAdapter = function(rectX, width) {
- return {
- x: function(x) {
- return rectX + rectX + width - x;
- },
- setWidth: function(w) {
- width = w;
- },
- textAlign: function(align) {
- if (align === 'center') {
- return align;
- }
- return align === 'right' ? 'left' : 'right';
- },
- xPlus: function(x, value) {
- return x - value;
- },
- leftForLtr: function(x, itemWidth) {
- return x - itemWidth;
- },
- };
-};
-
-var getLtrAdapter = function() {
- return {
- x: function(x) {
- return x;
- },
- setWidth: function(w) { // eslint-disable-line no-unused-vars
- },
- textAlign: function(align) {
- return align;
- },
- xPlus: function(x, value) {
- return x + value;
- },
- leftForLtr: function(x, _itemWidth) { // eslint-disable-line no-unused-vars
- return x;
- },
- };
-};
-
-var getAdapter = function(rtl, rectX, width) {
- return rtl ? getRtlAdapter(rectX, width) : getLtrAdapter();
-};
-
-var overrideTextDirection = function(ctx, direction) {
- var style, original;
- if (direction === 'ltr' || direction === 'rtl') {
- style = ctx.canvas.style;
- original = [
- style.getPropertyValue('direction'),
- style.getPropertyPriority('direction'),
- ];
-
- style.setProperty('direction', direction, 'important');
- ctx.prevTextDirection = original;
- }
-};
-
-var restoreTextDirection = function(ctx) {
- var original = ctx.prevTextDirection;
- if (original !== undefined) {
- delete ctx.prevTextDirection;
- ctx.canvas.style.setProperty('direction', original[0], original[1]);
- }
-};
-
-var helpers_rtl = {
- getRtlAdapter: getAdapter,
- overrideTextDirection: overrideTextDirection,
- restoreTextDirection: restoreTextDirection,
-};
-
-var helpers$1 = helpers_core;
-var easing = helpers_easing;
-var canvas = helpers_canvas;
-var options = helpers_options;
-var math = helpers_math;
-var rtl = helpers_rtl;
-helpers$1.easing = easing;
-helpers$1.canvas = canvas;
-helpers$1.options = options;
-helpers$1.math = math;
-helpers$1.rtl = rtl;
-
-function interpolate(start, view, model, ease) {
- var keys = Object.keys(model);
- var i, ilen, key, actual, origin, target, type, c0, c1;
-
- for (i = 0, ilen = keys.length; i < ilen; ++i) {
- key = keys[i];
-
- target = model[key];
-
- // if a value is added to the model after pivot() has been called, the view
- // doesn't contain it, so let's initialize the view to the target value.
- if (!view.hasOwnProperty(key)) {
- view[key] = target;
- }
-
- actual = view[key];
-
- if (actual === target || key[0] === '_') {
- continue;
- }
-
- if (!start.hasOwnProperty(key)) {
- start[key] = actual;
- }
-
- origin = start[key];
-
- type = typeof target;
-
- if (type === typeof origin) {
- if (type === 'string') {
- c0 = chartjsColor(origin);
- if (c0.valid) {
- c1 = chartjsColor(target);
- if (c1.valid) {
- view[key] = c1.mix(c0, ease).rgbString();
- continue;
- }
- }
- } else if (helpers$1.isFinite(origin) && helpers$1.isFinite(target)) {
- view[key] = origin + (target - origin) * ease;
- continue;
- }
- }
-
- view[key] = target;
- }
-}
-
-var Element = function(configuration) {
- helpers$1.extend(this, configuration);
- this.initialize.apply(this, arguments);
-};
-
-helpers$1.extend(Element.prototype, {
- _type: undefined,
-
- initialize: function() {
- this.hidden = false;
- },
-
- pivot: function() {
- var me = this;
- if (!me._view) {
- me._view = helpers$1.extend({}, me._model);
- }
- me._start = {};
- return me;
- },
-
- transition: function(ease) {
- var me = this;
- var model = me._model;
- var start = me._start;
- var view = me._view;
-
- // No animation -> No Transition
- if (!model || ease === 1) {
- me._view = helpers$1.extend({}, model);
- me._start = null;
- return me;
- }
-
- if (!view) {
- view = me._view = {};
- }
-
- if (!start) {
- start = me._start = {};
- }
-
- interpolate(start, view, model, ease);
-
- return me;
- },
-
- tooltipPosition: function() {
- return {
- x: this._model.x,
- y: this._model.y
- };
- },
-
- hasValue: function() {
- return helpers$1.isNumber(this._model.x) && helpers$1.isNumber(this._model.y);
- }
-});
-
-Element.extend = helpers$1.inherits;
-
-var core_element = Element;
-
-var exports$3 = core_element.extend({
- chart: null, // the animation associated chart instance
- currentStep: 0, // the current animation step
- numSteps: 60, // default number of steps
- easing: '', // the easing to use for this animation
- render: null, // render function used by the animation service
-
- onAnimationProgress: null, // user specified callback to fire on each step of the animation
- onAnimationComplete: null, // user specified callback to fire when the animation finishes
-});
-
-var core_animation = exports$3;
-
-// DEPRECATIONS
-
-/**
- * Provided for backward compatibility, use Chart.Animation instead
- * @prop Chart.Animation#animationObject
- * @deprecated since version 2.6.0
- * @todo remove at version 3
- */
-Object.defineProperty(exports$3.prototype, 'animationObject', {
- get: function() {
- return this;
- }
-});
-
-/**
- * Provided for backward compatibility, use Chart.Animation#chart instead
- * @prop Chart.Animation#chartInstance
- * @deprecated since version 2.6.0
- * @todo remove at version 3
- */
-Object.defineProperty(exports$3.prototype, 'chartInstance', {
- get: function() {
- return this.chart;
- },
- set: function(value) {
- this.chart = value;
- }
-});
-
-core_defaults._set('global', {
- animation: {
- duration: 1000,
- easing: 'easeOutQuart',
- onProgress: helpers$1.noop,
- onComplete: helpers$1.noop
- }
-});
-
-var core_animations = {
- animations: [],
- request: null,
-
- /**
- * @param {Chart} chart - The chart to animate.
- * @param {Chart.Animation} animation - The animation that we will animate.
- * @param {number} duration - The animation duration in ms.
- * @param {boolean} lazy - if true, the chart is not marked as animating to enable more responsive interactions
- */
- addAnimation: function(chart, animation, duration, lazy) {
- var animations = this.animations;
- var i, ilen;
-
- animation.chart = chart;
- animation.startTime = Date.now();
- animation.duration = duration;
-
- if (!lazy) {
- chart.animating = true;
- }
-
- for (i = 0, ilen = animations.length; i < ilen; ++i) {
- if (animations[i].chart === chart) {
- animations[i] = animation;
- return;
- }
- }
-
- animations.push(animation);
-
- // If there are no animations queued, manually kickstart a digest, for lack of a better word
- if (animations.length === 1) {
- this.requestAnimationFrame();
- }
- },
-
- cancelAnimation: function(chart) {
- var index = helpers$1.findIndex(this.animations, function(animation) {
- return animation.chart === chart;
- });
-
- if (index !== -1) {
- this.animations.splice(index, 1);
- chart.animating = false;
- }
- },
-
- requestAnimationFrame: function() {
- var me = this;
- if (me.request === null) {
- // Skip animation frame requests until the active one is executed.
- // This can happen when processing mouse events, e.g. 'mousemove'
- // and 'mouseout' events will trigger multiple renders.
- me.request = helpers$1.requestAnimFrame.call(window, function() {
- me.request = null;
- me.startDigest();
- });
- }
- },
-
- /**
- * @private
- */
- startDigest: function() {
- var me = this;
-
- me.advance();
-
- // Do we have more stuff to animate?
- if (me.animations.length > 0) {
- me.requestAnimationFrame();
- }
- },
-
- /**
- * @private
- */
- advance: function() {
- var animations = this.animations;
- var animation, chart, numSteps, nextStep;
- var i = 0;
-
- // 1 animation per chart, so we are looping charts here
- while (i < animations.length) {
- animation = animations[i];
- chart = animation.chart;
- numSteps = animation.numSteps;
-
- // Make sure that currentStep starts at 1
- // https://github.com/chartjs/Chart.js/issues/6104
- nextStep = Math.floor((Date.now() - animation.startTime) / animation.duration * numSteps) + 1;
- animation.currentStep = Math.min(nextStep, numSteps);
-
- helpers$1.callback(animation.render, [chart, animation], chart);
- helpers$1.callback(animation.onAnimationProgress, [animation], chart);
-
- if (animation.currentStep >= numSteps) {
- helpers$1.callback(animation.onAnimationComplete, [animation], chart);
- chart.animating = false;
- animations.splice(i, 1);
- } else {
- ++i;
- }
- }
- }
-};
-
-var resolve = helpers$1.options.resolve;
-
-var arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift'];
-
-/**
- * Hooks the array methods that add or remove values ('push', pop', 'shift', 'splice',
- * 'unshift') and notify the listener AFTER the array has been altered. Listeners are
- * called on the 'onData*' callbacks (e.g. onDataPush, etc.) with same arguments.
- */
-function listenArrayEvents(array, listener) {
- if (array._chartjs) {
- array._chartjs.listeners.push(listener);
- return;
- }
-
- Object.defineProperty(array, '_chartjs', {
- configurable: true,
- enumerable: false,
- value: {
- listeners: [listener]
- }
- });
-
- arrayEvents.forEach(function(key) {
- var method = 'onData' + key.charAt(0).toUpperCase() + key.slice(1);
- var base = array[key];
-
- Object.defineProperty(array, key, {
- configurable: true,
- enumerable: false,
- value: function() {
- var args = Array.prototype.slice.call(arguments);
- var res = base.apply(this, args);
-
- helpers$1.each(array._chartjs.listeners, function(object) {
- if (typeof object[method] === 'function') {
- object[method].apply(object, args);
- }
- });
-
- return res;
- }
- });
- });
-}
-
-/**
- * Removes the given array event listener and cleanup extra attached properties (such as
- * the _chartjs stub and overridden methods) if array doesn't have any more listeners.
- */
-function unlistenArrayEvents(array, listener) {
- var stub = array._chartjs;
- if (!stub) {
- return;
- }
-
- var listeners = stub.listeners;
- var index = listeners.indexOf(listener);
- if (index !== -1) {
- listeners.splice(index, 1);
- }
-
- if (listeners.length > 0) {
- return;
- }
-
- arrayEvents.forEach(function(key) {
- delete array[key];
- });
-
- delete array._chartjs;
-}
-
-// Base class for all dataset controllers (line, bar, etc)
-var DatasetController = function(chart, datasetIndex) {
- this.initialize(chart, datasetIndex);
-};
-
-helpers$1.extend(DatasetController.prototype, {
-
- /**
- * Element type used to generate a meta dataset (e.g. Chart.element.Line).
- * @type {Chart.core.element}
- */
- datasetElementType: null,
-
- /**
- * Element type used to generate a meta data (e.g. Chart.element.Point).
- * @type {Chart.core.element}
- */
- dataElementType: null,
-
- /**
- * Dataset element option keys to be resolved in _resolveDatasetElementOptions.
- * A derived controller may override this to resolve controller-specific options.
- * The keys defined here are for backward compatibility for legend styles.
- * @private
- */
- _datasetElementOptions: [
- 'backgroundColor',
- 'borderCapStyle',
- 'borderColor',
- 'borderDash',
- 'borderDashOffset',
- 'borderJoinStyle',
- 'borderWidth'
- ],
-
- /**
- * Data element option keys to be resolved in _resolveDataElementOptions.
- * A derived controller may override this to resolve controller-specific options.
- * The keys defined here are for backward compatibility for legend styles.
- * @private
- */
- _dataElementOptions: [
- 'backgroundColor',
- 'borderColor',
- 'borderWidth',
- 'pointStyle'
- ],
-
- initialize: function(chart, datasetIndex) {
- var me = this;
- me.chart = chart;
- me.index = datasetIndex;
- me.linkScales();
- me.addElements();
- me._type = me.getMeta().type;
- },
-
- updateIndex: function(datasetIndex) {
- this.index = datasetIndex;
- },
-
- linkScales: function() {
- var me = this;
- var meta = me.getMeta();
- var chart = me.chart;
- var scales = chart.scales;
- var dataset = me.getDataset();
- var scalesOpts = chart.options.scales;
-
- if (meta.xAxisID === null || !(meta.xAxisID in scales) || dataset.xAxisID) {
- meta.xAxisID = dataset.xAxisID || scalesOpts.xAxes[0].id;
- }
- if (meta.yAxisID === null || !(meta.yAxisID in scales) || dataset.yAxisID) {
- meta.yAxisID = dataset.yAxisID || scalesOpts.yAxes[0].id;
- }
- },
-
- getDataset: function() {
- return this.chart.data.datasets[this.index];
- },
-
- getMeta: function() {
- return this.chart.getDatasetMeta(this.index);
- },
-
- getScaleForId: function(scaleID) {
- return this.chart.scales[scaleID];
- },
-
- /**
- * @private
- */
- _getValueScaleId: function() {
- return this.getMeta().yAxisID;
- },
-
- /**
- * @private
- */
- _getIndexScaleId: function() {
- return this.getMeta().xAxisID;
- },
-
- /**
- * @private
- */
- _getValueScale: function() {
- return this.getScaleForId(this._getValueScaleId());
- },
-
- /**
- * @private
- */
- _getIndexScale: function() {
- return this.getScaleForId(this._getIndexScaleId());
- },
-
- reset: function() {
- this._update(true);
- },
-
- /**
- * @private
- */
- destroy: function() {
- if (this._data) {
- unlistenArrayEvents(this._data, this);
- }
- },
-
- createMetaDataset: function() {
- var me = this;
- var type = me.datasetElementType;
- return type && new type({
- _chart: me.chart,
- _datasetIndex: me.index
- });
- },
-
- createMetaData: function(index) {
- var me = this;
- var type = me.dataElementType;
- return type && new type({
- _chart: me.chart,
- _datasetIndex: me.index,
- _index: index
- });
- },
-
- addElements: function() {
- var me = this;
- var meta = me.getMeta();
- var data = me.getDataset().data || [];
- var metaData = meta.data;
- var i, ilen;
-
- for (i = 0, ilen = data.length; i < ilen; ++i) {
- metaData[i] = metaData[i] || me.createMetaData(i);
- }
-
- meta.dataset = meta.dataset || me.createMetaDataset();
- },
-
- addElementAndReset: function(index) {
- var element = this.createMetaData(index);
- this.getMeta().data.splice(index, 0, element);
- this.updateElement(element, index, true);
- },
-
- buildOrUpdateElements: function() {
- var me = this;
- var dataset = me.getDataset();
- var data = dataset.data || (dataset.data = []);
-
- // In order to correctly handle data addition/deletion animation (an thus simulate
- // real-time charts), we need to monitor these data modifications and synchronize
- // the internal meta data accordingly.
- if (me._data !== data) {
- if (me._data) {
- // This case happens when the user replaced the data array instance.
- unlistenArrayEvents(me._data, me);
- }
-
- if (data && Object.isExtensible(data)) {
- listenArrayEvents(data, me);
- }
- me._data = data;
- }
-
- // Re-sync meta data in case the user replaced the data array or if we missed
- // any updates and so make sure that we handle number of datapoints changing.
- me.resyncElements();
- },
-
- /**
- * Returns the merged user-supplied and default dataset-level options
- * @private
- */
- _configure: function() {
- var me = this;
- me._config = helpers$1.merge({}, [
- me.chart.options.datasets[me._type],
- me.getDataset(),
- ], {
- merger: function(key, target, source) {
- if (key !== '_meta' && key !== 'data') {
- helpers$1._merger(key, target, source);
- }
- }
- });
- },
-
- _update: function(reset) {
- var me = this;
- me._configure();
- me._cachedDataOpts = null;
- me.update(reset);
- },
-
- update: helpers$1.noop,
-
- transition: function(easingValue) {
- var meta = this.getMeta();
- var elements = meta.data || [];
- var ilen = elements.length;
- var i = 0;
-
- for (; i < ilen; ++i) {
- elements[i].transition(easingValue);
- }
-
- if (meta.dataset) {
- meta.dataset.transition(easingValue);
- }
- },
-
- draw: function() {
- var meta = this.getMeta();
- var elements = meta.data || [];
- var ilen = elements.length;
- var i = 0;
-
- if (meta.dataset) {
- meta.dataset.draw();
- }
-
- for (; i < ilen; ++i) {
- elements[i].draw();
- }
- },
-
- /**
- * Returns a set of predefined style properties that should be used to represent the dataset
- * or the data if the index is specified
- * @param {number} index - data index
- * @return {IStyleInterface} style object
- */
- getStyle: function(index) {
- var me = this;
- var meta = me.getMeta();
- var dataset = meta.dataset;
- var style;
-
- me._configure();
- if (dataset && index === undefined) {
- style = me._resolveDatasetElementOptions(dataset || {});
- } else {
- index = index || 0;
- style = me._resolveDataElementOptions(meta.data[index] || {}, index);
- }
-
- if (style.fill === false || style.fill === null) {
- style.backgroundColor = style.borderColor;
- }
-
- return style;
- },
-
- /**
- * @private
- */
- _resolveDatasetElementOptions: function(element, hover) {
- var me = this;
- var chart = me.chart;
- var datasetOpts = me._config;
- var custom = element.custom || {};
- var options = chart.options.elements[me.datasetElementType.prototype._type] || {};
- var elementOptions = me._datasetElementOptions;
- var values = {};
- var i, ilen, key, readKey;
-
- // Scriptable options
- var context = {
- chart: chart,
- dataset: me.getDataset(),
- datasetIndex: me.index,
- hover: hover
- };
-
- for (i = 0, ilen = elementOptions.length; i < ilen; ++i) {
- key = elementOptions[i];
- readKey = hover ? 'hover' + key.charAt(0).toUpperCase() + key.slice(1) : key;
- values[key] = resolve([
- custom[readKey],
- datasetOpts[readKey],
- options[readKey]
- ], context);
- }
-
- return values;
- },
-
- /**
- * @private
- */
- _resolveDataElementOptions: function(element, index) {
- var me = this;
- var custom = element && element.custom;
- var cached = me._cachedDataOpts;
- if (cached && !custom) {
- return cached;
- }
- var chart = me.chart;
- var datasetOpts = me._config;
- var options = chart.options.elements[me.dataElementType.prototype._type] || {};
- var elementOptions = me._dataElementOptions;
- var values = {};
-
- // Scriptable options
- var context = {
- chart: chart,
- dataIndex: index,
- dataset: me.getDataset(),
- datasetIndex: me.index
- };
-
- // `resolve` sets cacheable to `false` if any option is indexed or scripted
- var info = {cacheable: !custom};
-
- var keys, i, ilen, key;
-
- custom = custom || {};
-
- if (helpers$1.isArray(elementOptions)) {
- for (i = 0, ilen = elementOptions.length; i < ilen; ++i) {
- key = elementOptions[i];
- values[key] = resolve([
- custom[key],
- datasetOpts[key],
- options[key]
- ], context, index, info);
- }
- } else {
- keys = Object.keys(elementOptions);
- for (i = 0, ilen = keys.length; i < ilen; ++i) {
- key = keys[i];
- values[key] = resolve([
- custom[key],
- datasetOpts[elementOptions[key]],
- datasetOpts[key],
- options[key]
- ], context, index, info);
- }
- }
-
- if (info.cacheable) {
- me._cachedDataOpts = Object.freeze(values);
- }
-
- return values;
- },
-
- removeHoverStyle: function(element) {
- helpers$1.merge(element._model, element.$previousStyle || {});
- delete element.$previousStyle;
- },
-
- setHoverStyle: function(element) {
- var dataset = this.chart.data.datasets[element._datasetIndex];
- var index = element._index;
- var custom = element.custom || {};
- var model = element._model;
- var getHoverColor = helpers$1.getHoverColor;
-
- element.$previousStyle = {
- backgroundColor: model.backgroundColor,
- borderColor: model.borderColor,
- borderWidth: model.borderWidth
- };
-
- model.backgroundColor = resolve([custom.hoverBackgroundColor, dataset.hoverBackgroundColor, getHoverColor(model.backgroundColor)], undefined, index);
- model.borderColor = resolve([custom.hoverBorderColor, dataset.hoverBorderColor, getHoverColor(model.borderColor)], undefined, index);
- model.borderWidth = resolve([custom.hoverBorderWidth, dataset.hoverBorderWidth, model.borderWidth], undefined, index);
- },
-
- /**
- * @private
- */
- _removeDatasetHoverStyle: function() {
- var element = this.getMeta().dataset;
-
- if (element) {
- this.removeHoverStyle(element);
- }
- },
-
- /**
- * @private
- */
- _setDatasetHoverStyle: function() {
- var element = this.getMeta().dataset;
- var prev = {};
- var i, ilen, key, keys, hoverOptions, model;
-
- if (!element) {
- return;
- }
-
- model = element._model;
- hoverOptions = this._resolveDatasetElementOptions(element, true);
-
- keys = Object.keys(hoverOptions);
- for (i = 0, ilen = keys.length; i < ilen; ++i) {
- key = keys[i];
- prev[key] = model[key];
- model[key] = hoverOptions[key];
- }
-
- element.$previousStyle = prev;
- },
-
- /**
- * @private
- */
- resyncElements: function() {
- var me = this;
- var meta = me.getMeta();
- var data = me.getDataset().data;
- var numMeta = meta.data.length;
- var numData = data.length;
-
- if (numData < numMeta) {
- meta.data.splice(numData, numMeta - numData);
- } else if (numData > numMeta) {
- me.insertElements(numMeta, numData - numMeta);
- }
- },
-
- /**
- * @private
- */
- insertElements: function(start, count) {
- for (var i = 0; i < count; ++i) {
- this.addElementAndReset(start + i);
- }
- },
-
- /**
- * @private
- */
- onDataPush: function() {
- var count = arguments.length;
- this.insertElements(this.getDataset().data.length - count, count);
- },
-
- /**
- * @private
- */
- onDataPop: function() {
- this.getMeta().data.pop();
- },
-
- /**
- * @private
- */
- onDataShift: function() {
- this.getMeta().data.shift();
- },
-
- /**
- * @private
- */
- onDataSplice: function(start, count) {
- this.getMeta().data.splice(start, count);
- this.insertElements(start, arguments.length - 2);
- },
-
- /**
- * @private
- */
- onDataUnshift: function() {
- this.insertElements(0, arguments.length);
- }
-});
-
-DatasetController.extend = helpers$1.inherits;
-
-var core_datasetController = DatasetController;
-
-var TAU = Math.PI * 2;
-
-core_defaults._set('global', {
- elements: {
- arc: {
- backgroundColor: core_defaults.global.defaultColor,
- borderColor: '#fff',
- borderWidth: 2,
- borderAlign: 'center'
- }
- }
-});
-
-function clipArc(ctx, arc) {
- var startAngle = arc.startAngle;
- var endAngle = arc.endAngle;
- var pixelMargin = arc.pixelMargin;
- var angleMargin = pixelMargin / arc.outerRadius;
- var x = arc.x;
- var y = arc.y;
-
- // Draw an inner border by cliping the arc and drawing a double-width border
- // Enlarge the clipping arc by 0.33 pixels to eliminate glitches between borders
- ctx.beginPath();
- ctx.arc(x, y, arc.outerRadius, startAngle - angleMargin, endAngle + angleMargin);
- if (arc.innerRadius > pixelMargin) {
- angleMargin = pixelMargin / arc.innerRadius;
- ctx.arc(x, y, arc.innerRadius - pixelMargin, endAngle + angleMargin, startAngle - angleMargin, true);
- } else {
- ctx.arc(x, y, pixelMargin, endAngle + Math.PI / 2, startAngle - Math.PI / 2);
- }
- ctx.closePath();
- ctx.clip();
-}
-
-function drawFullCircleBorders(ctx, vm, arc, inner) {
- var endAngle = arc.endAngle;
- var i;
-
- if (inner) {
- arc.endAngle = arc.startAngle + TAU;
- clipArc(ctx, arc);
- arc.endAngle = endAngle;
- if (arc.endAngle === arc.startAngle && arc.fullCircles) {
- arc.endAngle += TAU;
- arc.fullCircles--;
- }
- }
-
- ctx.beginPath();
- ctx.arc(arc.x, arc.y, arc.innerRadius, arc.startAngle + TAU, arc.startAngle, true);
- for (i = 0; i < arc.fullCircles; ++i) {
- ctx.stroke();
- }
-
- ctx.beginPath();
- ctx.arc(arc.x, arc.y, vm.outerRadius, arc.startAngle, arc.startAngle + TAU);
- for (i = 0; i < arc.fullCircles; ++i) {
- ctx.stroke();
- }
-}
-
-function drawBorder(ctx, vm, arc) {
- var inner = vm.borderAlign === 'inner';
-
- if (inner) {
- ctx.lineWidth = vm.borderWidth * 2;
- ctx.lineJoin = 'round';
- } else {
- ctx.lineWidth = vm.borderWidth;
- ctx.lineJoin = 'bevel';
- }
-
- if (arc.fullCircles) {
- drawFullCircleBorders(ctx, vm, arc, inner);
- }
-
- if (inner) {
- clipArc(ctx, arc);
- }
-
- ctx.beginPath();
- ctx.arc(arc.x, arc.y, vm.outerRadius, arc.startAngle, arc.endAngle);
- ctx.arc(arc.x, arc.y, arc.innerRadius, arc.endAngle, arc.startAngle, true);
- ctx.closePath();
- ctx.stroke();
-}
-
-var element_arc = core_element.extend({
- _type: 'arc',
-
- inLabelRange: function(mouseX) {
- var vm = this._view;
-
- if (vm) {
- return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2));
- }
- return false;
- },
-
- inRange: function(chartX, chartY) {
- var vm = this._view;
-
- if (vm) {
- var pointRelativePosition = helpers$1.getAngleFromPoint(vm, {x: chartX, y: chartY});
- var angle = pointRelativePosition.angle;
- var distance = pointRelativePosition.distance;
-
- // Sanitise angle range
- var startAngle = vm.startAngle;
- var endAngle = vm.endAngle;
- while (endAngle < startAngle) {
- endAngle += TAU;
- }
- while (angle > endAngle) {
- angle -= TAU;
- }
- while (angle < startAngle) {
- angle += TAU;
- }
-
- // Check if within the range of the open/close angle
- var betweenAngles = (angle >= startAngle && angle <= endAngle);
- var withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius);
-
- return (betweenAngles && withinRadius);
- }
- return false;
- },
-
- getCenterPoint: function() {
- var vm = this._view;
- var halfAngle = (vm.startAngle + vm.endAngle) / 2;
- var halfRadius = (vm.innerRadius + vm.outerRadius) / 2;
- return {
- x: vm.x + Math.cos(halfAngle) * halfRadius,
- y: vm.y + Math.sin(halfAngle) * halfRadius
- };
- },
-
- getArea: function() {
- var vm = this._view;
- return Math.PI * ((vm.endAngle - vm.startAngle) / (2 * Math.PI)) * (Math.pow(vm.outerRadius, 2) - Math.pow(vm.innerRadius, 2));
- },
-
- tooltipPosition: function() {
- var vm = this._view;
- var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2);
- var rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius;
-
- return {
- x: vm.x + (Math.cos(centreAngle) * rangeFromCentre),
- y: vm.y + (Math.sin(centreAngle) * rangeFromCentre)
- };
- },
-
- draw: function() {
- var ctx = this._chart.ctx;
- var vm = this._view;
- var pixelMargin = (vm.borderAlign === 'inner') ? 0.33 : 0;
- var arc = {
- x: vm.x,
- y: vm.y,
- innerRadius: vm.innerRadius,
- outerRadius: Math.max(vm.outerRadius - pixelMargin, 0),
- pixelMargin: pixelMargin,
- startAngle: vm.startAngle,
- endAngle: vm.endAngle,
- fullCircles: Math.floor(vm.circumference / TAU)
- };
- var i;
-
- ctx.save();
-
- ctx.fillStyle = vm.backgroundColor;
- ctx.strokeStyle = vm.borderColor;
-
- if (arc.fullCircles) {
- arc.endAngle = arc.startAngle + TAU;
- ctx.beginPath();
- ctx.arc(arc.x, arc.y, arc.outerRadius, arc.startAngle, arc.endAngle);
- ctx.arc(arc.x, arc.y, arc.innerRadius, arc.endAngle, arc.startAngle, true);
- ctx.closePath();
- for (i = 0; i < arc.fullCircles; ++i) {
- ctx.fill();
- }
- arc.endAngle = arc.startAngle + vm.circumference % TAU;
- }
-
- ctx.beginPath();
- ctx.arc(arc.x, arc.y, arc.outerRadius, arc.startAngle, arc.endAngle);
- ctx.arc(arc.x, arc.y, arc.innerRadius, arc.endAngle, arc.startAngle, true);
- ctx.closePath();
- ctx.fill();
-
- if (vm.borderWidth) {
- drawBorder(ctx, vm, arc);
- }
-
- ctx.restore();
- }
-});
-
-var valueOrDefault$1 = helpers$1.valueOrDefault;
-
-var defaultColor = core_defaults.global.defaultColor;
-
-core_defaults._set('global', {
- elements: {
- line: {
- tension: 0.4,
- backgroundColor: defaultColor,
- borderWidth: 3,
- borderColor: defaultColor,
- borderCapStyle: 'butt',
- borderDash: [],
- borderDashOffset: 0.0,
- borderJoinStyle: 'miter',
- capBezierPoints: true,
- fill: true, // do we fill in the area between the line and its base axis
- }
- }
-});
-
-var element_line = core_element.extend({
- _type: 'line',
-
- draw: function() {
- var me = this;
- var vm = me._view;
- var ctx = me._chart.ctx;
- var spanGaps = vm.spanGaps;
- var points = me._children.slice(); // clone array
- var globalDefaults = core_defaults.global;
- var globalOptionLineElements = globalDefaults.elements.line;
- var lastDrawnIndex = -1;
- var closePath = me._loop;
- var index, previous, currentVM;
-
- if (!points.length) {
- return;
- }
-
- if (me._loop) {
- for (index = 0; index < points.length; ++index) {
- previous = helpers$1.previousItem(points, index);
- // If the line has an open path, shift the point array
- if (!points[index]._view.skip && previous._view.skip) {
- points = points.slice(index).concat(points.slice(0, index));
- closePath = spanGaps;
- break;
- }
- }
- // If the line has a close path, add the first point again
- if (closePath) {
- points.push(points[0]);
- }
- }
-
- ctx.save();
-
- // Stroke Line Options
- ctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle;
-
- // IE 9 and 10 do not support line dash
- if (ctx.setLineDash) {
- ctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash);
- }
-
- ctx.lineDashOffset = valueOrDefault$1(vm.borderDashOffset, globalOptionLineElements.borderDashOffset);
- ctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle;
- ctx.lineWidth = valueOrDefault$1(vm.borderWidth, globalOptionLineElements.borderWidth);
- ctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor;
-
- // Stroke Line
- ctx.beginPath();
-
- // First point moves to it's starting position no matter what
- currentVM = points[0]._view;
- if (!currentVM.skip) {
- ctx.moveTo(currentVM.x, currentVM.y);
- lastDrawnIndex = 0;
- }
-
- for (index = 1; index < points.length; ++index) {
- currentVM = points[index]._view;
- previous = lastDrawnIndex === -1 ? helpers$1.previousItem(points, index) : points[lastDrawnIndex];
-
- if (!currentVM.skip) {
- if ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) {
- // There was a gap and this is the first point after the gap
- ctx.moveTo(currentVM.x, currentVM.y);
- } else {
- // Line to next point
- helpers$1.canvas.lineTo(ctx, previous._view, currentVM);
- }
- lastDrawnIndex = index;
- }
- }
-
- if (closePath) {
- ctx.closePath();
- }
-
- ctx.stroke();
- ctx.restore();
- }
-});
-
-var valueOrDefault$2 = helpers$1.valueOrDefault;
-
-var defaultColor$1 = core_defaults.global.defaultColor;
-
-core_defaults._set('global', {
- elements: {
- point: {
- radius: 3,
- pointStyle: 'circle',
- backgroundColor: defaultColor$1,
- borderColor: defaultColor$1,
- borderWidth: 1,
- // Hover
- hitRadius: 1,
- hoverRadius: 4,
- hoverBorderWidth: 1
- }
- }
-});
-
-function xRange(mouseX) {
- var vm = this._view;
- return vm ? (Math.abs(mouseX - vm.x) < vm.radius + vm.hitRadius) : false;
-}
-
-function yRange(mouseY) {
- var vm = this._view;
- return vm ? (Math.abs(mouseY - vm.y) < vm.radius + vm.hitRadius) : false;
-}
-
-var element_point = core_element.extend({
- _type: 'point',
-
- inRange: function(mouseX, mouseY) {
- var vm = this._view;
- return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false;
- },
-
- inLabelRange: xRange,
- inXRange: xRange,
- inYRange: yRange,
-
- getCenterPoint: function() {
- var vm = this._view;
- return {
- x: vm.x,
- y: vm.y
- };
- },
-
- getArea: function() {
- return Math.PI * Math.pow(this._view.radius, 2);
- },
-
- tooltipPosition: function() {
- var vm = this._view;
- return {
- x: vm.x,
- y: vm.y,
- padding: vm.radius + vm.borderWidth
- };
- },
-
- draw: function(chartArea) {
- var vm = this._view;
- var ctx = this._chart.ctx;
- var pointStyle = vm.pointStyle;
- var rotation = vm.rotation;
- var radius = vm.radius;
- var x = vm.x;
- var y = vm.y;
- var globalDefaults = core_defaults.global;
- var defaultColor = globalDefaults.defaultColor; // eslint-disable-line no-shadow
-
- if (vm.skip) {
- return;
- }
-
- // Clipping for Points.
- if (chartArea === undefined || helpers$1.canvas._isPointInArea(vm, chartArea)) {
- ctx.strokeStyle = vm.borderColor || defaultColor;
- ctx.lineWidth = valueOrDefault$2(vm.borderWidth, globalDefaults.elements.point.borderWidth);
- ctx.fillStyle = vm.backgroundColor || defaultColor;
- helpers$1.canvas.drawPoint(ctx, pointStyle, radius, x, y, rotation);
- }
- }
-});
-
-var defaultColor$2 = core_defaults.global.defaultColor;
-
-core_defaults._set('global', {
- elements: {
- rectangle: {
- backgroundColor: defaultColor$2,
- borderColor: defaultColor$2,
- borderSkipped: 'bottom',
- borderWidth: 0
- }
- }
-});
-
-function isVertical(vm) {
- return vm && vm.width !== undefined;
-}
-
-/**
- * Helper function to get the bounds of the bar regardless of the orientation
- * @param bar {Chart.Element.Rectangle} the bar
- * @return {Bounds} bounds of the bar
- * @private
- */
-function getBarBounds(vm) {
- var x1, x2, y1, y2, half;
-
- if (isVertical(vm)) {
- half = vm.width / 2;
- x1 = vm.x - half;
- x2 = vm.x + half;
- y1 = Math.min(vm.y, vm.base);
- y2 = Math.max(vm.y, vm.base);
- } else {
- half = vm.height / 2;
- x1 = Math.min(vm.x, vm.base);
- x2 = Math.max(vm.x, vm.base);
- y1 = vm.y - half;
- y2 = vm.y + half;
- }
-
- return {
- left: x1,
- top: y1,
- right: x2,
- bottom: y2
- };
-}
-
-function swap(orig, v1, v2) {
- return orig === v1 ? v2 : orig === v2 ? v1 : orig;
-}
-
-function parseBorderSkipped(vm) {
- var edge = vm.borderSkipped;
- var res = {};
-
- if (!edge) {
- return res;
- }
-
- if (vm.horizontal) {
- if (vm.base > vm.x) {
- edge = swap(edge, 'left', 'right');
- }
- } else if (vm.base < vm.y) {
- edge = swap(edge, 'bottom', 'top');
- }
-
- res[edge] = true;
- return res;
-}
-
-function parseBorderWidth(vm, maxW, maxH) {
- var value = vm.borderWidth;
- var skip = parseBorderSkipped(vm);
- var t, r, b, l;
-
- if (helpers$1.isObject(value)) {
- t = +value.top || 0;
- r = +value.right || 0;
- b = +value.bottom || 0;
- l = +value.left || 0;
- } else {
- t = r = b = l = +value || 0;
- }
-
- return {
- t: skip.top || (t < 0) ? 0 : t > maxH ? maxH : t,
- r: skip.right || (r < 0) ? 0 : r > maxW ? maxW : r,
- b: skip.bottom || (b < 0) ? 0 : b > maxH ? maxH : b,
- l: skip.left || (l < 0) ? 0 : l > maxW ? maxW : l
- };
-}
-
-function boundingRects(vm) {
- var bounds = getBarBounds(vm);
- var width = bounds.right - bounds.left;
- var height = bounds.bottom - bounds.top;
- var border = parseBorderWidth(vm, width / 2, height / 2);
-
- return {
- outer: {
- x: bounds.left,
- y: bounds.top,
- w: width,
- h: height
- },
- inner: {
- x: bounds.left + border.l,
- y: bounds.top + border.t,
- w: width - border.l - border.r,
- h: height - border.t - border.b
- }
- };
-}
-
-function inRange(vm, x, y) {
- var skipX = x === null;
- var skipY = y === null;
- var bounds = !vm || (skipX && skipY) ? false : getBarBounds(vm);
-
- return bounds
- && (skipX || x >= bounds.left && x <= bounds.right)
- && (skipY || y >= bounds.top && y <= bounds.bottom);
-}
-
-var element_rectangle = core_element.extend({
- _type: 'rectangle',
-
- draw: function() {
- var ctx = this._chart.ctx;
- var vm = this._view;
- var rects = boundingRects(vm);
- var outer = rects.outer;
- var inner = rects.inner;
-
- ctx.fillStyle = vm.backgroundColor;
- ctx.fillRect(outer.x, outer.y, outer.w, outer.h);
-
- if (outer.w === inner.w && outer.h === inner.h) {
- return;
- }
-
- ctx.save();
- ctx.beginPath();
- ctx.rect(outer.x, outer.y, outer.w, outer.h);
- ctx.clip();
- ctx.fillStyle = vm.borderColor;
- ctx.rect(inner.x, inner.y, inner.w, inner.h);
- ctx.fill('evenodd');
- ctx.restore();
- },
-
- height: function() {
- var vm = this._view;
- return vm.base - vm.y;
- },
-
- inRange: function(mouseX, mouseY) {
- return inRange(this._view, mouseX, mouseY);
- },
-
- inLabelRange: function(mouseX, mouseY) {
- var vm = this._view;
- return isVertical(vm)
- ? inRange(vm, mouseX, null)
- : inRange(vm, null, mouseY);
- },
-
- inXRange: function(mouseX) {
- return inRange(this._view, mouseX, null);
- },
-
- inYRange: function(mouseY) {
- return inRange(this._view, null, mouseY);
- },
-
- getCenterPoint: function() {
- var vm = this._view;
- var x, y;
- if (isVertical(vm)) {
- x = vm.x;
- y = (vm.y + vm.base) / 2;
- } else {
- x = (vm.x + vm.base) / 2;
- y = vm.y;
- }
-
- return {x: x, y: y};
- },
-
- getArea: function() {
- var vm = this._view;
-
- return isVertical(vm)
- ? vm.width * Math.abs(vm.y - vm.base)
- : vm.height * Math.abs(vm.x - vm.base);
- },
-
- tooltipPosition: function() {
- var vm = this._view;
- return {
- x: vm.x,
- y: vm.y
- };
- }
-});
-
-var elements = {};
-var Arc = element_arc;
-var Line = element_line;
-var Point = element_point;
-var Rectangle = element_rectangle;
-elements.Arc = Arc;
-elements.Line = Line;
-elements.Point = Point;
-elements.Rectangle = Rectangle;
-
-var deprecated = helpers$1._deprecated;
-var valueOrDefault$3 = helpers$1.valueOrDefault;
-
-core_defaults._set('bar', {
- hover: {
- mode: 'label'
- },
-
- scales: {
- xAxes: [{
- type: 'category',
- offset: true,
- gridLines: {
- offsetGridLines: true
- }
- }],
-
- yAxes: [{
- type: 'linear'
- }]
- }
-});
-
-core_defaults._set('global', {
- datasets: {
- bar: {
- categoryPercentage: 0.8,
- barPercentage: 0.9
- }
- }
-});
-
-/**
- * Computes the "optimal" sample size to maintain bars equally sized while preventing overlap.
- * @private
- */
-function computeMinSampleSize(scale, pixels) {
- var min = scale._length;
- var prev, curr, i, ilen;
-
- for (i = 1, ilen = pixels.length; i < ilen; ++i) {
- min = Math.min(min, Math.abs(pixels[i] - pixels[i - 1]));
- }
-
- for (i = 0, ilen = scale.getTicks().length; i < ilen; ++i) {
- curr = scale.getPixelForTick(i);
- min = i > 0 ? Math.min(min, Math.abs(curr - prev)) : min;
- prev = curr;
- }
-
- return min;
-}
-
-/**
- * Computes an "ideal" category based on the absolute bar thickness or, if undefined or null,
- * uses the smallest interval (see computeMinSampleSize) that prevents bar overlapping. This
- * mode currently always generates bars equally sized (until we introduce scriptable options?).
- * @private
- */
-function computeFitCategoryTraits(index, ruler, options) {
- var thickness = options.barThickness;
- var count = ruler.stackCount;
- var curr = ruler.pixels[index];
- var min = helpers$1.isNullOrUndef(thickness)
- ? computeMinSampleSize(ruler.scale, ruler.pixels)
- : -1;
- var size, ratio;
-
- if (helpers$1.isNullOrUndef(thickness)) {
- size = min * options.categoryPercentage;
- ratio = options.barPercentage;
- } else {
- // When bar thickness is enforced, category and bar percentages are ignored.
- // Note(SB): we could add support for relative bar thickness (e.g. barThickness: '50%')
- // and deprecate barPercentage since this value is ignored when thickness is absolute.
- size = thickness * count;
- ratio = 1;
- }
-
- return {
- chunk: size / count,
- ratio: ratio,
- start: curr - (size / 2)
- };
-}
-
-/**
- * Computes an "optimal" category that globally arranges bars side by side (no gap when
- * percentage options are 1), based on the previous and following categories. This mode
- * generates bars with different widths when data are not evenly spaced.
- * @private
- */
-function computeFlexCategoryTraits(index, ruler, options) {
- var pixels = ruler.pixels;
- var curr = pixels[index];
- var prev = index > 0 ? pixels[index - 1] : null;
- var next = index < pixels.length - 1 ? pixels[index + 1] : null;
- var percent = options.categoryPercentage;
- var start, size;
-
- if (prev === null) {
- // first data: its size is double based on the next point or,
- // if it's also the last data, we use the scale size.
- prev = curr - (next === null ? ruler.end - ruler.start : next - curr);
- }
-
- if (next === null) {
- // last data: its size is also double based on the previous point.
- next = curr + curr - prev;
- }
-
- start = curr - (curr - Math.min(prev, next)) / 2 * percent;
- size = Math.abs(next - prev) / 2 * percent;
-
- return {
- chunk: size / ruler.stackCount,
- ratio: options.barPercentage,
- start: start
- };
-}
-
-var controller_bar = core_datasetController.extend({
-
- dataElementType: elements.Rectangle,
-
- /**
- * @private
- */
- _dataElementOptions: [
- 'backgroundColor',
- 'borderColor',
- 'borderSkipped',
- 'borderWidth',
- 'barPercentage',
- 'barThickness',
- 'categoryPercentage',
- 'maxBarThickness',
- 'minBarLength'
- ],
-
- initialize: function() {
- var me = this;
- var meta, scaleOpts;
-
- core_datasetController.prototype.initialize.apply(me, arguments);
-
- meta = me.getMeta();
- meta.stack = me.getDataset().stack;
- meta.bar = true;
-
- scaleOpts = me._getIndexScale().options;
- deprecated('bar chart', scaleOpts.barPercentage, 'scales.[x/y]Axes.barPercentage', 'dataset.barPercentage');
- deprecated('bar chart', scaleOpts.barThickness, 'scales.[x/y]Axes.barThickness', 'dataset.barThickness');
- deprecated('bar chart', scaleOpts.categoryPercentage, 'scales.[x/y]Axes.categoryPercentage', 'dataset.categoryPercentage');
- deprecated('bar chart', me._getValueScale().options.minBarLength, 'scales.[x/y]Axes.minBarLength', 'dataset.minBarLength');
- deprecated('bar chart', scaleOpts.maxBarThickness, 'scales.[x/y]Axes.maxBarThickness', 'dataset.maxBarThickness');
- },
-
- update: function(reset) {
- var me = this;
- var rects = me.getMeta().data;
- var i, ilen;
-
- me._ruler = me.getRuler();
-
- for (i = 0, ilen = rects.length; i < ilen; ++i) {
- me.updateElement(rects[i], i, reset);
- }
- },
-
- updateElement: function(rectangle, index, reset) {
- var me = this;
- var meta = me.getMeta();
- var dataset = me.getDataset();
- var options = me._resolveDataElementOptions(rectangle, index);
-
- rectangle._xScale = me.getScaleForId(meta.xAxisID);
- rectangle._yScale = me.getScaleForId(meta.yAxisID);
- rectangle._datasetIndex = me.index;
- rectangle._index = index;
- rectangle._model = {
- backgroundColor: options.backgroundColor,
- borderColor: options.borderColor,
- borderSkipped: options.borderSkipped,
- borderWidth: options.borderWidth,
- datasetLabel: dataset.label,
- label: me.chart.data.labels[index]
- };
-
- if (helpers$1.isArray(dataset.data[index])) {
- rectangle._model.borderSkipped = null;
- }
-
- me._updateElementGeometry(rectangle, index, reset, options);
-
- rectangle.pivot();
- },
-
- /**
- * @private
- */
- _updateElementGeometry: function(rectangle, index, reset, options) {
- var me = this;
- var model = rectangle._model;
- var vscale = me._getValueScale();
- var base = vscale.getBasePixel();
- var horizontal = vscale.isHorizontal();
- var ruler = me._ruler || me.getRuler();
- var vpixels = me.calculateBarValuePixels(me.index, index, options);
- var ipixels = me.calculateBarIndexPixels(me.index, index, ruler, options);
-
- model.horizontal = horizontal;
- model.base = reset ? base : vpixels.base;
- model.x = horizontal ? reset ? base : vpixels.head : ipixels.center;
- model.y = horizontal ? ipixels.center : reset ? base : vpixels.head;
- model.height = horizontal ? ipixels.size : undefined;
- model.width = horizontal ? undefined : ipixels.size;
- },
-
- /**
- * Returns the stacks based on groups and bar visibility.
- * @param {number} [last] - The dataset index
- * @returns {string[]} The list of stack IDs
- * @private
- */
- _getStacks: function(last) {
- var me = this;
- var scale = me._getIndexScale();
- var metasets = scale._getMatchingVisibleMetas(me._type);
- var stacked = scale.options.stacked;
- var ilen = metasets.length;
- var stacks = [];
- var i, meta;
-
- for (i = 0; i < ilen; ++i) {
- meta = metasets[i];
- // stacked | meta.stack
- // | found | not found | undefined
- // false | x | x | x
- // true | | x |
- // undefined | | x | x
- if (stacked === false || stacks.indexOf(meta.stack) === -1 ||
- (stacked === undefined && meta.stack === undefined)) {
- stacks.push(meta.stack);
- }
- if (meta.index === last) {
- break;
- }
- }
-
- return stacks;
- },
-
- /**
- * Returns the effective number of stacks based on groups and bar visibility.
- * @private
- */
- getStackCount: function() {
- return this._getStacks().length;
- },
-
- /**
- * Returns the stack index for the given dataset based on groups and bar visibility.
- * @param {number} [datasetIndex] - The dataset index
- * @param {string} [name] - The stack name to find
- * @returns {number} The stack index
- * @private
- */
- getStackIndex: function(datasetIndex, name) {
- var stacks = this._getStacks(datasetIndex);
- var index = (name !== undefined)
- ? stacks.indexOf(name)
- : -1; // indexOf returns -1 if element is not present
-
- return (index === -1)
- ? stacks.length - 1
- : index;
- },
-
- /**
- * @private
- */
- getRuler: function() {
- var me = this;
- var scale = me._getIndexScale();
- var pixels = [];
- var i, ilen;
-
- for (i = 0, ilen = me.getMeta().data.length; i < ilen; ++i) {
- pixels.push(scale.getPixelForValue(null, i, me.index));
- }
-
- return {
- pixels: pixels,
- start: scale._startPixel,
- end: scale._endPixel,
- stackCount: me.getStackCount(),
- scale: scale
- };
- },
-
- /**
- * Note: pixel values are not clamped to the scale area.
- * @private
- */
- calculateBarValuePixels: function(datasetIndex, index, options) {
- var me = this;
- var chart = me.chart;
- var scale = me._getValueScale();
- var isHorizontal = scale.isHorizontal();
- var datasets = chart.data.datasets;
- var metasets = scale._getMatchingVisibleMetas(me._type);
- var value = scale._parseValue(datasets[datasetIndex].data[index]);
- var minBarLength = options.minBarLength;
- var stacked = scale.options.stacked;
- var stack = me.getMeta().stack;
- var start = value.start === undefined ? 0 : value.max >= 0 && value.min >= 0 ? value.min : value.max;
- var length = value.start === undefined ? value.end : value.max >= 0 && value.min >= 0 ? value.max - value.min : value.min - value.max;
- var ilen = metasets.length;
- var i, imeta, ivalue, base, head, size, stackLength;
-
- if (stacked || (stacked === undefined && stack !== undefined)) {
- for (i = 0; i < ilen; ++i) {
- imeta = metasets[i];
-
- if (imeta.index === datasetIndex) {
- break;
- }
-
- if (imeta.stack === stack) {
- stackLength = scale._parseValue(datasets[imeta.index].data[index]);
- ivalue = stackLength.start === undefined ? stackLength.end : stackLength.min >= 0 && stackLength.max >= 0 ? stackLength.max : stackLength.min;
-
- if ((value.min < 0 && ivalue < 0) || (value.max >= 0 && ivalue > 0)) {
- start += ivalue;
- }
- }
- }
- }
-
- base = scale.getPixelForValue(start);
- head = scale.getPixelForValue(start + length);
- size = head - base;
-
- if (minBarLength !== undefined && Math.abs(size) < minBarLength) {
- size = minBarLength;
- if (length >= 0 && !isHorizontal || length < 0 && isHorizontal) {
- head = base - minBarLength;
- } else {
- head = base + minBarLength;
- }
- }
-
- return {
- size: size,
- base: base,
- head: head,
- center: head + size / 2
- };
- },
-
- /**
- * @private
- */
- calculateBarIndexPixels: function(datasetIndex, index, ruler, options) {
- var me = this;
- var range = options.barThickness === 'flex'
- ? computeFlexCategoryTraits(index, ruler, options)
- : computeFitCategoryTraits(index, ruler, options);
-
- var stackIndex = me.getStackIndex(datasetIndex, me.getMeta().stack);
- var center = range.start + (range.chunk * stackIndex) + (range.chunk / 2);
- var size = Math.min(
- valueOrDefault$3(options.maxBarThickness, Infinity),
- range.chunk * range.ratio);
-
- return {
- base: center - size / 2,
- head: center + size / 2,
- center: center,
- size: size
- };
- },
-
- draw: function() {
- var me = this;
- var chart = me.chart;
- var scale = me._getValueScale();
- var rects = me.getMeta().data;
- var dataset = me.getDataset();
- var ilen = rects.length;
- var i = 0;
-
- helpers$1.canvas.clipArea(chart.ctx, chart.chartArea);
-
- for (; i < ilen; ++i) {
- var val = scale._parseValue(dataset.data[i]);
- if (!isNaN(val.min) && !isNaN(val.max)) {
- rects[i].draw();
- }
- }
-
- helpers$1.canvas.unclipArea(chart.ctx);
- },
-
- /**
- * @private
- */
- _resolveDataElementOptions: function() {
- var me = this;
- var values = helpers$1.extend({}, core_datasetController.prototype._resolveDataElementOptions.apply(me, arguments));
- var indexOpts = me._getIndexScale().options;
- var valueOpts = me._getValueScale().options;
-
- values.barPercentage = valueOrDefault$3(indexOpts.barPercentage, values.barPercentage);
- values.barThickness = valueOrDefault$3(indexOpts.barThickness, values.barThickness);
- values.categoryPercentage = valueOrDefault$3(indexOpts.categoryPercentage, values.categoryPercentage);
- values.maxBarThickness = valueOrDefault$3(indexOpts.maxBarThickness, values.maxBarThickness);
- values.minBarLength = valueOrDefault$3(valueOpts.minBarLength, values.minBarLength);
-
- return values;
- }
-
-});
-
-var valueOrDefault$4 = helpers$1.valueOrDefault;
-var resolve$1 = helpers$1.options.resolve;
-
-core_defaults._set('bubble', {
- hover: {
- mode: 'single'
- },
-
- scales: {
- xAxes: [{
- type: 'linear', // bubble should probably use a linear scale by default
- position: 'bottom',
- id: 'x-axis-0' // need an ID so datasets can reference the scale
- }],
- yAxes: [{
- type: 'linear',
- position: 'left',
- id: 'y-axis-0'
- }]
- },
-
- tooltips: {
- callbacks: {
- title: function() {
- // Title doesn't make sense for scatter since we format the data as a point
- return '';
- },
- label: function(item, data) {
- var datasetLabel = data.datasets[item.datasetIndex].label || '';
- var dataPoint = data.datasets[item.datasetIndex].data[item.index];
- return datasetLabel + ': (' + item.xLabel + ', ' + item.yLabel + ', ' + dataPoint.r + ')';
- }
- }
- }
-});
-
-var controller_bubble = core_datasetController.extend({
- /**
- * @protected
- */
- dataElementType: elements.Point,
-
- /**
- * @private
- */
- _dataElementOptions: [
- 'backgroundColor',
- 'borderColor',
- 'borderWidth',
- 'hoverBackgroundColor',
- 'hoverBorderColor',
- 'hoverBorderWidth',
- 'hoverRadius',
- 'hitRadius',
- 'pointStyle',
- 'rotation'
- ],
-
- /**
- * @protected
- */
- update: function(reset) {
- var me = this;
- var meta = me.getMeta();
- var points = meta.data;
-
- // Update Points
- helpers$1.each(points, function(point, index) {
- me.updateElement(point, index, reset);
- });
- },
-
- /**
- * @protected
- */
- updateElement: function(point, index, reset) {
- var me = this;
- var meta = me.getMeta();
- var custom = point.custom || {};
- var xScale = me.getScaleForId(meta.xAxisID);
- var yScale = me.getScaleForId(meta.yAxisID);
- var options = me._resolveDataElementOptions(point, index);
- var data = me.getDataset().data[index];
- var dsIndex = me.index;
-
- var x = reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === 'object' ? data : NaN, index, dsIndex);
- var y = reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex);
-
- point._xScale = xScale;
- point._yScale = yScale;
- point._options = options;
- point._datasetIndex = dsIndex;
- point._index = index;
- point._model = {
- backgroundColor: options.backgroundColor,
- borderColor: options.borderColor,
- borderWidth: options.borderWidth,
- hitRadius: options.hitRadius,
- pointStyle: options.pointStyle,
- rotation: options.rotation,
- radius: reset ? 0 : options.radius,
- skip: custom.skip || isNaN(x) || isNaN(y),
- x: x,
- y: y,
- };
-
- point.pivot();
- },
-
- /**
- * @protected
- */
- setHoverStyle: function(point) {
- var model = point._model;
- var options = point._options;
- var getHoverColor = helpers$1.getHoverColor;
-
- point.$previousStyle = {
- backgroundColor: model.backgroundColor,
- borderColor: model.borderColor,
- borderWidth: model.borderWidth,
- radius: model.radius
- };
-
- model.backgroundColor = valueOrDefault$4(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
- model.borderColor = valueOrDefault$4(options.hoverBorderColor, getHoverColor(options.borderColor));
- model.borderWidth = valueOrDefault$4(options.hoverBorderWidth, options.borderWidth);
- model.radius = options.radius + options.hoverRadius;
- },
-
- /**
- * @private
- */
- _resolveDataElementOptions: function(point, index) {
- var me = this;
- var chart = me.chart;
- var dataset = me.getDataset();
- var custom = point.custom || {};
- var data = dataset.data[index] || {};
- var values = core_datasetController.prototype._resolveDataElementOptions.apply(me, arguments);
-
- // Scriptable options
- var context = {
- chart: chart,
- dataIndex: index,
- dataset: dataset,
- datasetIndex: me.index
- };
-
- // In case values were cached (and thus frozen), we need to clone the values
- if (me._cachedDataOpts === values) {
- values = helpers$1.extend({}, values);
- }
-
- // Custom radius resolution
- values.radius = resolve$1([
- custom.radius,
- data.r,
- me._config.radius,
- chart.options.elements.point.radius
- ], context, index);
-
- return values;
- }
-});
-
-var valueOrDefault$5 = helpers$1.valueOrDefault;
-
-var PI$1 = Math.PI;
-var DOUBLE_PI$1 = PI$1 * 2;
-var HALF_PI$1 = PI$1 / 2;
-
-core_defaults._set('doughnut', {
- animation: {
- // Boolean - Whether we animate the rotation of the Doughnut
- animateRotate: true,
- // Boolean - Whether we animate scaling the Doughnut from the centre
- animateScale: false
- },
- hover: {
- mode: 'single'
- },
- legendCallback: function(chart) {
- var list = document.createElement('ul');
- var data = chart.data;
- var datasets = data.datasets;
- var labels = data.labels;
- var i, ilen, listItem, listItemSpan;
-
- list.setAttribute('class', chart.id + '-legend');
- if (datasets.length) {
- for (i = 0, ilen = datasets[0].data.length; i < ilen; ++i) {
- listItem = list.appendChild(document.createElement('li'));
- listItemSpan = listItem.appendChild(document.createElement('span'));
- listItemSpan.style.backgroundColor = datasets[0].backgroundColor[i];
- if (labels[i]) {
- listItem.appendChild(document.createTextNode(labels[i]));
- }
- }
- }
-
- return list.outerHTML;
- },
- legend: {
- labels: {
- generateLabels: function(chart) {
- var data = chart.data;
- if (data.labels.length && data.datasets.length) {
- return data.labels.map(function(label, i) {
- var meta = chart.getDatasetMeta(0);
- var style = meta.controller.getStyle(i);
-
- return {
- text: label,
- fillStyle: style.backgroundColor,
- strokeStyle: style.borderColor,
- lineWidth: style.borderWidth,
- hidden: isNaN(data.datasets[0].data[i]) || meta.data[i].hidden,
-
- // Extra data used for toggling the correct item
- index: i
- };
- });
- }
- return [];
- }
- },
-
- onClick: function(e, legendItem) {
- var index = legendItem.index;
- var chart = this.chart;
- var i, ilen, meta;
-
- for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
- meta = chart.getDatasetMeta(i);
- // toggle visibility of index if exists
- if (meta.data[index]) {
- meta.data[index].hidden = !meta.data[index].hidden;
- }
- }
-
- chart.update();
- }
- },
-
- // The percentage of the chart that we cut out of the middle.
- cutoutPercentage: 50,
-
- // The rotation of the chart, where the first data arc begins.
- rotation: -HALF_PI$1,
-
- // The total circumference of the chart.
- circumference: DOUBLE_PI$1,
-
- // Need to override these to give a nice default
- tooltips: {
- callbacks: {
- title: function() {
- return '';
- },
- label: function(tooltipItem, data) {
- var dataLabel = data.labels[tooltipItem.index];
- var value = ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];
-
- if (helpers$1.isArray(dataLabel)) {
- // show value on first line of multiline label
- // need to clone because we are changing the value
- dataLabel = dataLabel.slice();
- dataLabel[0] += value;
- } else {
- dataLabel += value;
- }
-
- return dataLabel;
- }
- }
- }
-});
-
-var controller_doughnut = core_datasetController.extend({
-
- dataElementType: elements.Arc,
-
- linkScales: helpers$1.noop,
-
- /**
- * @private
- */
- _dataElementOptions: [
- 'backgroundColor',
- 'borderColor',
- 'borderWidth',
- 'borderAlign',
- 'hoverBackgroundColor',
- 'hoverBorderColor',
- 'hoverBorderWidth',
- ],
-
- // Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly
- getRingIndex: function(datasetIndex) {
- var ringIndex = 0;
-
- for (var j = 0; j < datasetIndex; ++j) {
- if (this.chart.isDatasetVisible(j)) {
- ++ringIndex;
- }
- }
-
- return ringIndex;
- },
-
- update: function(reset) {
- var me = this;
- var chart = me.chart;
- var chartArea = chart.chartArea;
- var opts = chart.options;
- var ratioX = 1;
- var ratioY = 1;
- var offsetX = 0;
- var offsetY = 0;
- var meta = me.getMeta();
- var arcs = meta.data;
- var cutout = opts.cutoutPercentage / 100 || 0;
- var circumference = opts.circumference;
- var chartWeight = me._getRingWeight(me.index);
- var maxWidth, maxHeight, i, ilen;
-
- // If the chart's circumference isn't a full circle, calculate size as a ratio of the width/height of the arc
- if (circumference < DOUBLE_PI$1) {
- var startAngle = opts.rotation % DOUBLE_PI$1;
- startAngle += startAngle >= PI$1 ? -DOUBLE_PI$1 : startAngle < -PI$1 ? DOUBLE_PI$1 : 0;
- var endAngle = startAngle + circumference;
- var startX = Math.cos(startAngle);
- var startY = Math.sin(startAngle);
- var endX = Math.cos(endAngle);
- var endY = Math.sin(endAngle);
- var contains0 = (startAngle <= 0 && endAngle >= 0) || endAngle >= DOUBLE_PI$1;
- var contains90 = (startAngle <= HALF_PI$1 && endAngle >= HALF_PI$1) || endAngle >= DOUBLE_PI$1 + HALF_PI$1;
- var contains180 = startAngle === -PI$1 || endAngle >= PI$1;
- var contains270 = (startAngle <= -HALF_PI$1 && endAngle >= -HALF_PI$1) || endAngle >= PI$1 + HALF_PI$1;
- var minX = contains180 ? -1 : Math.min(startX, startX * cutout, endX, endX * cutout);
- var minY = contains270 ? -1 : Math.min(startY, startY * cutout, endY, endY * cutout);
- var maxX = contains0 ? 1 : Math.max(startX, startX * cutout, endX, endX * cutout);
- var maxY = contains90 ? 1 : Math.max(startY, startY * cutout, endY, endY * cutout);
- ratioX = (maxX - minX) / 2;
- ratioY = (maxY - minY) / 2;
- offsetX = -(maxX + minX) / 2;
- offsetY = -(maxY + minY) / 2;
- }
-
- for (i = 0, ilen = arcs.length; i < ilen; ++i) {
- arcs[i]._options = me._resolveDataElementOptions(arcs[i], i);
- }
-
- chart.borderWidth = me.getMaxBorderWidth();
- maxWidth = (chartArea.right - chartArea.left - chart.borderWidth) / ratioX;
- maxHeight = (chartArea.bottom - chartArea.top - chart.borderWidth) / ratioY;
- chart.outerRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0);
- chart.innerRadius = Math.max(chart.outerRadius * cutout, 0);
- chart.radiusLength = (chart.outerRadius - chart.innerRadius) / (me._getVisibleDatasetWeightTotal() || 1);
- chart.offsetX = offsetX * chart.outerRadius;
- chart.offsetY = offsetY * chart.outerRadius;
-
- meta.total = me.calculateTotal();
-
- me.outerRadius = chart.outerRadius - chart.radiusLength * me._getRingWeightOffset(me.index);
- me.innerRadius = Math.max(me.outerRadius - chart.radiusLength * chartWeight, 0);
-
- for (i = 0, ilen = arcs.length; i < ilen; ++i) {
- me.updateElement(arcs[i], i, reset);
- }
- },
-
- updateElement: function(arc, index, reset) {
- var me = this;
- var chart = me.chart;
- var chartArea = chart.chartArea;
- var opts = chart.options;
- var animationOpts = opts.animation;
- var centerX = (chartArea.left + chartArea.right) / 2;
- var centerY = (chartArea.top + chartArea.bottom) / 2;
- var startAngle = opts.rotation; // non reset case handled later
- var endAngle = opts.rotation; // non reset case handled later
- var dataset = me.getDataset();
- var circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / DOUBLE_PI$1);
- var innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius;
- var outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius;
- var options = arc._options || {};
-
- helpers$1.extend(arc, {
- // Utility
- _datasetIndex: me.index,
- _index: index,
-
- // Desired view properties
- _model: {
- backgroundColor: options.backgroundColor,
- borderColor: options.borderColor,
- borderWidth: options.borderWidth,
- borderAlign: options.borderAlign,
- x: centerX + chart.offsetX,
- y: centerY + chart.offsetY,
- startAngle: startAngle,
- endAngle: endAngle,
- circumference: circumference,
- outerRadius: outerRadius,
- innerRadius: innerRadius,
- label: helpers$1.valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index])
- }
- });
-
- var model = arc._model;
-
- // Set correct angles if not resetting
- if (!reset || !animationOpts.animateRotate) {
- if (index === 0) {
- model.startAngle = opts.rotation;
- } else {
- model.startAngle = me.getMeta().data[index - 1]._model.endAngle;
- }
-
- model.endAngle = model.startAngle + model.circumference;
- }
-
- arc.pivot();
- },
-
- calculateTotal: function() {
- var dataset = this.getDataset();
- var meta = this.getMeta();
- var total = 0;
- var value;
-
- helpers$1.each(meta.data, function(element, index) {
- value = dataset.data[index];
- if (!isNaN(value) && !element.hidden) {
- total += Math.abs(value);
- }
- });
-
- /* if (total === 0) {
- total = NaN;
- }*/
-
- return total;
- },
-
- calculateCircumference: function(value) {
- var total = this.getMeta().total;
- if (total > 0 && !isNaN(value)) {
- return DOUBLE_PI$1 * (Math.abs(value) / total);
- }
- return 0;
- },
-
- // gets the max border or hover width to properly scale pie charts
- getMaxBorderWidth: function(arcs) {
- var me = this;
- var max = 0;
- var chart = me.chart;
- var i, ilen, meta, arc, controller, options, borderWidth, hoverWidth;
-
- if (!arcs) {
- // Find the outmost visible dataset
- for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {
- if (chart.isDatasetVisible(i)) {
- meta = chart.getDatasetMeta(i);
- arcs = meta.data;
- if (i !== me.index) {
- controller = meta.controller;
- }
- break;
- }
- }
- }
-
- if (!arcs) {
- return 0;
- }
-
- for (i = 0, ilen = arcs.length; i < ilen; ++i) {
- arc = arcs[i];
- if (controller) {
- controller._configure();
- options = controller._resolveDataElementOptions(arc, i);
- } else {
- options = arc._options;
- }
- if (options.borderAlign !== 'inner') {
- borderWidth = options.borderWidth;
- hoverWidth = options.hoverBorderWidth;
-
- max = borderWidth > max ? borderWidth : max;
- max = hoverWidth > max ? hoverWidth : max;
- }
- }
- return max;
- },
-
- /**
- * @protected
- */
- setHoverStyle: function(arc) {
- var model = arc._model;
- var options = arc._options;
- var getHoverColor = helpers$1.getHoverColor;
-
- arc.$previousStyle = {
- backgroundColor: model.backgroundColor,
- borderColor: model.borderColor,
- borderWidth: model.borderWidth,
- };
-
- model.backgroundColor = valueOrDefault$5(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
- model.borderColor = valueOrDefault$5(options.hoverBorderColor, getHoverColor(options.borderColor));
- model.borderWidth = valueOrDefault$5(options.hoverBorderWidth, options.borderWidth);
- },
-
- /**
- * Get radius length offset of the dataset in relation to the visible datasets weights. This allows determining the inner and outer radius correctly
- * @private
- */
- _getRingWeightOffset: function(datasetIndex) {
- var ringWeightOffset = 0;
-
- for (var i = 0; i < datasetIndex; ++i) {
- if (this.chart.isDatasetVisible(i)) {
- ringWeightOffset += this._getRingWeight(i);
- }
- }
-
- return ringWeightOffset;
- },
-
- /**
- * @private
- */
- _getRingWeight: function(dataSetIndex) {
- return Math.max(valueOrDefault$5(this.chart.data.datasets[dataSetIndex].weight, 1), 0);
- },
-
- /**
- * Returns the sum of all visibile data set weights. This value can be 0.
- * @private
- */
- _getVisibleDatasetWeightTotal: function() {
- return this._getRingWeightOffset(this.chart.data.datasets.length);
- }
-});
-
-core_defaults._set('horizontalBar', {
- hover: {
- mode: 'index',
- axis: 'y'
- },
-
- scales: {
- xAxes: [{
- type: 'linear',
- position: 'bottom'
- }],
-
- yAxes: [{
- type: 'category',
- position: 'left',
- offset: true,
- gridLines: {
- offsetGridLines: true
- }
- }]
- },
-
- elements: {
- rectangle: {
- borderSkipped: 'left'
- }
- },
-
- tooltips: {
- mode: 'index',
- axis: 'y'
- }
-});
-
-core_defaults._set('global', {
- datasets: {
- horizontalBar: {
- categoryPercentage: 0.8,
- barPercentage: 0.9
- }
- }
-});
-
-var controller_horizontalBar = controller_bar.extend({
- /**
- * @private
- */
- _getValueScaleId: function() {
- return this.getMeta().xAxisID;
- },
-
- /**
- * @private
- */
- _getIndexScaleId: function() {
- return this.getMeta().yAxisID;
- }
-});
-
-var valueOrDefault$6 = helpers$1.valueOrDefault;
-var resolve$2 = helpers$1.options.resolve;
-var isPointInArea = helpers$1.canvas._isPointInArea;
-
-core_defaults._set('line', {
- showLines: true,
- spanGaps: false,
-
- hover: {
- mode: 'label'
- },
-
- scales: {
- xAxes: [{
- type: 'category',
- id: 'x-axis-0'
- }],
- yAxes: [{
- type: 'linear',
- id: 'y-axis-0'
- }]
- }
-});
-
-function scaleClip(scale, halfBorderWidth) {
- var tickOpts = scale && scale.options.ticks || {};
- var reverse = tickOpts.reverse;
- var min = tickOpts.min === undefined ? halfBorderWidth : 0;
- var max = tickOpts.max === undefined ? halfBorderWidth : 0;
- return {
- start: reverse ? max : min,
- end: reverse ? min : max
- };
-}
-
-function defaultClip(xScale, yScale, borderWidth) {
- var halfBorderWidth = borderWidth / 2;
- var x = scaleClip(xScale, halfBorderWidth);
- var y = scaleClip(yScale, halfBorderWidth);
-
- return {
- top: y.end,
- right: x.end,
- bottom: y.start,
- left: x.start
- };
-}
-
-function toClip(value) {
- var t, r, b, l;
-
- if (helpers$1.isObject(value)) {
- t = value.top;
- r = value.right;
- b = value.bottom;
- l = value.left;
- } else {
- t = r = b = l = value;
- }
-
- return {
- top: t,
- right: r,
- bottom: b,
- left: l
- };
-}
-
-
-var controller_line = core_datasetController.extend({
-
- datasetElementType: elements.Line,
-
- dataElementType: elements.Point,
-
- /**
- * @private
- */
- _datasetElementOptions: [
- 'backgroundColor',
- 'borderCapStyle',
- 'borderColor',
- 'borderDash',
- 'borderDashOffset',
- 'borderJoinStyle',
- 'borderWidth',
- 'cubicInterpolationMode',
- 'fill'
- ],
-
- /**
- * @private
- */
- _dataElementOptions: {
- backgroundColor: 'pointBackgroundColor',
- borderColor: 'pointBorderColor',
- borderWidth: 'pointBorderWidth',
- hitRadius: 'pointHitRadius',
- hoverBackgroundColor: 'pointHoverBackgroundColor',
- hoverBorderColor: 'pointHoverBorderColor',
- hoverBorderWidth: 'pointHoverBorderWidth',
- hoverRadius: 'pointHoverRadius',
- pointStyle: 'pointStyle',
- radius: 'pointRadius',
- rotation: 'pointRotation'
- },
-
- update: function(reset) {
- var me = this;
- var meta = me.getMeta();
- var line = meta.dataset;
- var points = meta.data || [];
- var options = me.chart.options;
- var config = me._config;
- var showLine = me._showLine = valueOrDefault$6(config.showLine, options.showLines);
- var i, ilen;
-
- me._xScale = me.getScaleForId(meta.xAxisID);
- me._yScale = me.getScaleForId(meta.yAxisID);
-
- // Update Line
- if (showLine) {
- // Compatibility: If the properties are defined with only the old name, use those values
- if (config.tension !== undefined && config.lineTension === undefined) {
- config.lineTension = config.tension;
- }
-
- // Utility
- line._scale = me._yScale;
- line._datasetIndex = me.index;
- // Data
- line._children = points;
- // Model
- line._model = me._resolveDatasetElementOptions(line);
-
- line.pivot();
- }
-
- // Update Points
- for (i = 0, ilen = points.length; i < ilen; ++i) {
- me.updateElement(points[i], i, reset);
- }
-
- if (showLine && line._model.tension !== 0) {
- me.updateBezierControlPoints();
- }
-
- // Now pivot the point for animation
- for (i = 0, ilen = points.length; i < ilen; ++i) {
- points[i].pivot();
- }
- },
-
- updateElement: function(point, index, reset) {
- var me = this;
- var meta = me.getMeta();
- var custom = point.custom || {};
- var dataset = me.getDataset();
- var datasetIndex = me.index;
- var value = dataset.data[index];
- var xScale = me._xScale;
- var yScale = me._yScale;
- var lineModel = meta.dataset._model;
- var x, y;
-
- var options = me._resolveDataElementOptions(point, index);
-
- x = xScale.getPixelForValue(typeof value === 'object' ? value : NaN, index, datasetIndex);
- y = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex);
-
- // Utility
- point._xScale = xScale;
- point._yScale = yScale;
- point._options = options;
- point._datasetIndex = datasetIndex;
- point._index = index;
-
- // Desired view properties
- point._model = {
- x: x,
- y: y,
- skip: custom.skip || isNaN(x) || isNaN(y),
- // Appearance
- radius: options.radius,
- pointStyle: options.pointStyle,
- rotation: options.rotation,
- backgroundColor: options.backgroundColor,
- borderColor: options.borderColor,
- borderWidth: options.borderWidth,
- tension: valueOrDefault$6(custom.tension, lineModel ? lineModel.tension : 0),
- steppedLine: lineModel ? lineModel.steppedLine : false,
- // Tooltip
- hitRadius: options.hitRadius
- };
- },
-
- /**
- * @private
- */
- _resolveDatasetElementOptions: function(element) {
- var me = this;
- var config = me._config;
- var custom = element.custom || {};
- var options = me.chart.options;
- var lineOptions = options.elements.line;
- var values = core_datasetController.prototype._resolveDatasetElementOptions.apply(me, arguments);
-
- // The default behavior of lines is to break at null values, according
- // to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158
- // This option gives lines the ability to span gaps
- values.spanGaps = valueOrDefault$6(config.spanGaps, options.spanGaps);
- values.tension = valueOrDefault$6(config.lineTension, lineOptions.tension);
- values.steppedLine = resolve$2([custom.steppedLine, config.steppedLine, lineOptions.stepped]);
- values.clip = toClip(valueOrDefault$6(config.clip, defaultClip(me._xScale, me._yScale, values.borderWidth)));
-
- return values;
- },
-
- calculatePointY: function(value, index, datasetIndex) {
- var me = this;
- var chart = me.chart;
- var yScale = me._yScale;
- var sumPos = 0;
- var sumNeg = 0;
- var i, ds, dsMeta, stackedRightValue, rightValue, metasets, ilen;
-
- if (yScale.options.stacked) {
- rightValue = +yScale.getRightValue(value);
- metasets = chart._getSortedVisibleDatasetMetas();
- ilen = metasets.length;
-
- for (i = 0; i < ilen; ++i) {
- dsMeta = metasets[i];
- if (dsMeta.index === datasetIndex) {
- break;
- }
-
- ds = chart.data.datasets[dsMeta.index];
- if (dsMeta.type === 'line' && dsMeta.yAxisID === yScale.id) {
- stackedRightValue = +yScale.getRightValue(ds.data[index]);
- if (stackedRightValue < 0) {
- sumNeg += stackedRightValue || 0;
- } else {
- sumPos += stackedRightValue || 0;
- }
- }
- }
-
- if (rightValue < 0) {
- return yScale.getPixelForValue(sumNeg + rightValue);
- }
- return yScale.getPixelForValue(sumPos + rightValue);
- }
- return yScale.getPixelForValue(value);
- },
-
- updateBezierControlPoints: function() {
- var me = this;
- var chart = me.chart;
- var meta = me.getMeta();
- var lineModel = meta.dataset._model;
- var area = chart.chartArea;
- var points = meta.data || [];
- var i, ilen, model, controlPoints;
-
- // Only consider points that are drawn in case the spanGaps option is used
- if (lineModel.spanGaps) {
- points = points.filter(function(pt) {
- return !pt._model.skip;
- });
- }
-
- function capControlPoint(pt, min, max) {
- return Math.max(Math.min(pt, max), min);
- }
-
- if (lineModel.cubicInterpolationMode === 'monotone') {
- helpers$1.splineCurveMonotone(points);
- } else {
- for (i = 0, ilen = points.length; i < ilen; ++i) {
- model = points[i]._model;
- controlPoints = helpers$1.splineCurve(
- helpers$1.previousItem(points, i)._model,
- model,
- helpers$1.nextItem(points, i)._model,
- lineModel.tension
- );
- model.controlPointPreviousX = controlPoints.previous.x;
- model.controlPointPreviousY = controlPoints.previous.y;
- model.controlPointNextX = controlPoints.next.x;
- model.controlPointNextY = controlPoints.next.y;
- }
- }
-
- if (chart.options.elements.line.capBezierPoints) {
- for (i = 0, ilen = points.length; i < ilen; ++i) {
- model = points[i]._model;
- if (isPointInArea(model, area)) {
- if (i > 0 && isPointInArea(points[i - 1]._model, area)) {
- model.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right);
- model.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom);
- }
- if (i < points.length - 1 && isPointInArea(points[i + 1]._model, area)) {
- model.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right);
- model.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom);
- }
- }
- }
- }
- },
-
- draw: function() {
- var me = this;
- var chart = me.chart;
- var meta = me.getMeta();
- var points = meta.data || [];
- var area = chart.chartArea;
- var canvas = chart.canvas;
- var i = 0;
- var ilen = points.length;
- var clip;
-
- if (me._showLine) {
- clip = meta.dataset._model.clip;
-
- helpers$1.canvas.clipArea(chart.ctx, {
- left: clip.left === false ? 0 : area.left - clip.left,
- right: clip.right === false ? canvas.width : area.right + clip.right,
- top: clip.top === false ? 0 : area.top - clip.top,
- bottom: clip.bottom === false ? canvas.height : area.bottom + clip.bottom
- });
-
- meta.dataset.draw();
-
- helpers$1.canvas.unclipArea(chart.ctx);
- }
-
- // Draw the points
- for (; i < ilen; ++i) {
- points[i].draw(area);
- }
- },
-
- /**
- * @protected
- */
- setHoverStyle: function(point) {
- var model = point._model;
- var options = point._options;
- var getHoverColor = helpers$1.getHoverColor;
-
- point.$previousStyle = {
- backgroundColor: model.backgroundColor,
- borderColor: model.borderColor,
- borderWidth: model.borderWidth,
- radius: model.radius
- };
-
- model.backgroundColor = valueOrDefault$6(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
- model.borderColor = valueOrDefault$6(options.hoverBorderColor, getHoverColor(options.borderColor));
- model.borderWidth = valueOrDefault$6(options.hoverBorderWidth, options.borderWidth);
- model.radius = valueOrDefault$6(options.hoverRadius, options.radius);
- },
-});
-
-var resolve$3 = helpers$1.options.resolve;
-
-core_defaults._set('polarArea', {
- scale: {
- type: 'radialLinear',
- angleLines: {
- display: false
- },
- gridLines: {
- circular: true
- },
- pointLabels: {
- display: false
- },
- ticks: {
- beginAtZero: true
- }
- },
-
- // Boolean - Whether to animate the rotation of the chart
- animation: {
- animateRotate: true,
- animateScale: true
- },
-
- startAngle: -0.5 * Math.PI,
- legendCallback: function(chart) {
- var list = document.createElement('ul');
- var data = chart.data;
- var datasets = data.datasets;
- var labels = data.labels;
- var i, ilen, listItem, listItemSpan;
-
- list.setAttribute('class', chart.id + '-legend');
- if (datasets.length) {
- for (i = 0, ilen = datasets[0].data.length; i < ilen; ++i) {
- listItem = list.appendChild(document.createElement('li'));
- listItemSpan = listItem.appendChild(document.createElement('span'));
- listItemSpan.style.backgroundColor = datasets[0].backgroundColor[i];
- if (labels[i]) {
- listItem.appendChild(document.createTextNode(labels[i]));
- }
- }
- }
-
- return list.outerHTML;
- },
- legend: {
- labels: {
- generateLabels: function(chart) {
- var data = chart.data;
- if (data.labels.length && data.datasets.length) {
- return data.labels.map(function(label, i) {
- var meta = chart.getDatasetMeta(0);
- var style = meta.controller.getStyle(i);
-
- return {
- text: label,
- fillStyle: style.backgroundColor,
- strokeStyle: style.borderColor,
- lineWidth: style.borderWidth,
- hidden: isNaN(data.datasets[0].data[i]) || meta.data[i].hidden,
-
- // Extra data used for toggling the correct item
- index: i
- };
- });
- }
- return [];
- }
- },
-
- onClick: function(e, legendItem) {
- var index = legendItem.index;
- var chart = this.chart;
- var i, ilen, meta;
-
- for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
- meta = chart.getDatasetMeta(i);
- meta.data[index].hidden = !meta.data[index].hidden;
- }
-
- chart.update();
- }
- },
-
- // Need to override these to give a nice default
- tooltips: {
- callbacks: {
- title: function() {
- return '';
- },
- label: function(item, data) {
- return data.labels[item.index] + ': ' + item.yLabel;
- }
- }
- }
-});
-
-var controller_polarArea = core_datasetController.extend({
-
- dataElementType: elements.Arc,
-
- linkScales: helpers$1.noop,
-
- /**
- * @private
- */
- _dataElementOptions: [
- 'backgroundColor',
- 'borderColor',
- 'borderWidth',
- 'borderAlign',
- 'hoverBackgroundColor',
- 'hoverBorderColor',
- 'hoverBorderWidth',
- ],
-
- /**
- * @private
- */
- _getIndexScaleId: function() {
- return this.chart.scale.id;
- },
-
- /**
- * @private
- */
- _getValueScaleId: function() {
- return this.chart.scale.id;
- },
-
- update: function(reset) {
- var me = this;
- var dataset = me.getDataset();
- var meta = me.getMeta();
- var start = me.chart.options.startAngle || 0;
- var starts = me._starts = [];
- var angles = me._angles = [];
- var arcs = meta.data;
- var i, ilen, angle;
-
- me._updateRadius();
-
- meta.count = me.countVisibleElements();
-
- for (i = 0, ilen = dataset.data.length; i < ilen; i++) {
- starts[i] = start;
- angle = me._computeAngle(i);
- angles[i] = angle;
- start += angle;
- }
-
- for (i = 0, ilen = arcs.length; i < ilen; ++i) {
- arcs[i]._options = me._resolveDataElementOptions(arcs[i], i);
- me.updateElement(arcs[i], i, reset);
- }
- },
-
- /**
- * @private
- */
- _updateRadius: function() {
- var me = this;
- var chart = me.chart;
- var chartArea = chart.chartArea;
- var opts = chart.options;
- var minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);
-
- chart.outerRadius = Math.max(minSize / 2, 0);
- chart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0);
- chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();
-
- me.outerRadius = chart.outerRadius - (chart.radiusLength * me.index);
- me.innerRadius = me.outerRadius - chart.radiusLength;
- },
-
- updateElement: function(arc, index, reset) {
- var me = this;
- var chart = me.chart;
- var dataset = me.getDataset();
- var opts = chart.options;
- var animationOpts = opts.animation;
- var scale = chart.scale;
- var labels = chart.data.labels;
-
- var centerX = scale.xCenter;
- var centerY = scale.yCenter;
-
- // var negHalfPI = -0.5 * Math.PI;
- var datasetStartAngle = opts.startAngle;
- var distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
- var startAngle = me._starts[index];
- var endAngle = startAngle + (arc.hidden ? 0 : me._angles[index]);
-
- var resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
- var options = arc._options || {};
-
- helpers$1.extend(arc, {
- // Utility
- _datasetIndex: me.index,
- _index: index,
- _scale: scale,
-
- // Desired view properties
- _model: {
- backgroundColor: options.backgroundColor,
- borderColor: options.borderColor,
- borderWidth: options.borderWidth,
- borderAlign: options.borderAlign,
- x: centerX,
- y: centerY,
- innerRadius: 0,
- outerRadius: reset ? resetRadius : distance,
- startAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle,
- endAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle,
- label: helpers$1.valueAtIndexOrDefault(labels, index, labels[index])
- }
- });
-
- arc.pivot();
- },
-
- countVisibleElements: function() {
- var dataset = this.getDataset();
- var meta = this.getMeta();
- var count = 0;
-
- helpers$1.each(meta.data, function(element, index) {
- if (!isNaN(dataset.data[index]) && !element.hidden) {
- count++;
- }
- });
-
- return count;
- },
-
- /**
- * @protected
- */
- setHoverStyle: function(arc) {
- var model = arc._model;
- var options = arc._options;
- var getHoverColor = helpers$1.getHoverColor;
- var valueOrDefault = helpers$1.valueOrDefault;
-
- arc.$previousStyle = {
- backgroundColor: model.backgroundColor,
- borderColor: model.borderColor,
- borderWidth: model.borderWidth,
- };
-
- model.backgroundColor = valueOrDefault(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
- model.borderColor = valueOrDefault(options.hoverBorderColor, getHoverColor(options.borderColor));
- model.borderWidth = valueOrDefault(options.hoverBorderWidth, options.borderWidth);
- },
-
- /**
- * @private
- */
- _computeAngle: function(index) {
- var me = this;
- var count = this.getMeta().count;
- var dataset = me.getDataset();
- var meta = me.getMeta();
-
- if (isNaN(dataset.data[index]) || meta.data[index].hidden) {
- return 0;
- }
-
- // Scriptable options
- var context = {
- chart: me.chart,
- dataIndex: index,
- dataset: dataset,
- datasetIndex: me.index
- };
-
- return resolve$3([
- me.chart.options.elements.arc.angle,
- (2 * Math.PI) / count
- ], context, index);
- }
-});
-
-core_defaults._set('pie', helpers$1.clone(core_defaults.doughnut));
-core_defaults._set('pie', {
- cutoutPercentage: 0
-});
-
-// Pie charts are Doughnut chart with different defaults
-var controller_pie = controller_doughnut;
-
-var valueOrDefault$7 = helpers$1.valueOrDefault;
-
-core_defaults._set('radar', {
- spanGaps: false,
- scale: {
- type: 'radialLinear'
- },
- elements: {
- line: {
- fill: 'start',
- tension: 0 // no bezier in radar
- }
- }
-});
-
-var controller_radar = core_datasetController.extend({
- datasetElementType: elements.Line,
-
- dataElementType: elements.Point,
-
- linkScales: helpers$1.noop,
-
- /**
- * @private
- */
- _datasetElementOptions: [
- 'backgroundColor',
- 'borderWidth',
- 'borderColor',
- 'borderCapStyle',
- 'borderDash',
- 'borderDashOffset',
- 'borderJoinStyle',
- 'fill'
- ],
-
- /**
- * @private
- */
- _dataElementOptions: {
- backgroundColor: 'pointBackgroundColor',
- borderColor: 'pointBorderColor',
- borderWidth: 'pointBorderWidth',
- hitRadius: 'pointHitRadius',
- hoverBackgroundColor: 'pointHoverBackgroundColor',
- hoverBorderColor: 'pointHoverBorderColor',
- hoverBorderWidth: 'pointHoverBorderWidth',
- hoverRadius: 'pointHoverRadius',
- pointStyle: 'pointStyle',
- radius: 'pointRadius',
- rotation: 'pointRotation'
- },
-
- /**
- * @private
- */
- _getIndexScaleId: function() {
- return this.chart.scale.id;
- },
-
- /**
- * @private
- */
- _getValueScaleId: function() {
- return this.chart.scale.id;
- },
-
- update: function(reset) {
- var me = this;
- var meta = me.getMeta();
- var line = meta.dataset;
- var points = meta.data || [];
- var scale = me.chart.scale;
- var config = me._config;
- var i, ilen;
-
- // Compatibility: If the properties are defined with only the old name, use those values
- if (config.tension !== undefined && config.lineTension === undefined) {
- config.lineTension = config.tension;
- }
-
- // Utility
- line._scale = scale;
- line._datasetIndex = me.index;
- // Data
- line._children = points;
- line._loop = true;
- // Model
- line._model = me._resolveDatasetElementOptions(line);
-
- line.pivot();
-
- // Update Points
- for (i = 0, ilen = points.length; i < ilen; ++i) {
- me.updateElement(points[i], i, reset);
- }
-
- // Update bezier control points
- me.updateBezierControlPoints();
-
- // Now pivot the point for animation
- for (i = 0, ilen = points.length; i < ilen; ++i) {
- points[i].pivot();
- }
- },
-
- updateElement: function(point, index, reset) {
- var me = this;
- var custom = point.custom || {};
- var dataset = me.getDataset();
- var scale = me.chart.scale;
- var pointPosition = scale.getPointPositionForValue(index, dataset.data[index]);
- var options = me._resolveDataElementOptions(point, index);
- var lineModel = me.getMeta().dataset._model;
- var x = reset ? scale.xCenter : pointPosition.x;
- var y = reset ? scale.yCenter : pointPosition.y;
-
- // Utility
- point._scale = scale;
- point._options = options;
- point._datasetIndex = me.index;
- point._index = index;
-
- // Desired view properties
- point._model = {
- x: x, // value not used in dataset scale, but we want a consistent API between scales
- y: y,
- skip: custom.skip || isNaN(x) || isNaN(y),
- // Appearance
- radius: options.radius,
- pointStyle: options.pointStyle,
- rotation: options.rotation,
- backgroundColor: options.backgroundColor,
- borderColor: options.borderColor,
- borderWidth: options.borderWidth,
- tension: valueOrDefault$7(custom.tension, lineModel ? lineModel.tension : 0),
-
- // Tooltip
- hitRadius: options.hitRadius
- };
- },
-
- /**
- * @private
- */
- _resolveDatasetElementOptions: function() {
- var me = this;
- var config = me._config;
- var options = me.chart.options;
- var values = core_datasetController.prototype._resolveDatasetElementOptions.apply(me, arguments);
-
- values.spanGaps = valueOrDefault$7(config.spanGaps, options.spanGaps);
- values.tension = valueOrDefault$7(config.lineTension, options.elements.line.tension);
-
- return values;
- },
-
- updateBezierControlPoints: function() {
- var me = this;
- var meta = me.getMeta();
- var area = me.chart.chartArea;
- var points = meta.data || [];
- var i, ilen, model, controlPoints;
-
- // Only consider points that are drawn in case the spanGaps option is used
- if (meta.dataset._model.spanGaps) {
- points = points.filter(function(pt) {
- return !pt._model.skip;
- });
- }
-
- function capControlPoint(pt, min, max) {
- return Math.max(Math.min(pt, max), min);
- }
-
- for (i = 0, ilen = points.length; i < ilen; ++i) {
- model = points[i]._model;
- controlPoints = helpers$1.splineCurve(
- helpers$1.previousItem(points, i, true)._model,
- model,
- helpers$1.nextItem(points, i, true)._model,
- model.tension
- );
-
- // Prevent the bezier going outside of the bounds of the graph
- model.controlPointPreviousX = capControlPoint(controlPoints.previous.x, area.left, area.right);
- model.controlPointPreviousY = capControlPoint(controlPoints.previous.y, area.top, area.bottom);
- model.controlPointNextX = capControlPoint(controlPoints.next.x, area.left, area.right);
- model.controlPointNextY = capControlPoint(controlPoints.next.y, area.top, area.bottom);
- }
- },
-
- setHoverStyle: function(point) {
- var model = point._model;
- var options = point._options;
- var getHoverColor = helpers$1.getHoverColor;
-
- point.$previousStyle = {
- backgroundColor: model.backgroundColor,
- borderColor: model.borderColor,
- borderWidth: model.borderWidth,
- radius: model.radius
- };
-
- model.backgroundColor = valueOrDefault$7(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
- model.borderColor = valueOrDefault$7(options.hoverBorderColor, getHoverColor(options.borderColor));
- model.borderWidth = valueOrDefault$7(options.hoverBorderWidth, options.borderWidth);
- model.radius = valueOrDefault$7(options.hoverRadius, options.radius);
- }
-});
-
-core_defaults._set('scatter', {
- hover: {
- mode: 'single'
- },
-
- scales: {
- xAxes: [{
- id: 'x-axis-1', // need an ID so datasets can reference the scale
- type: 'linear', // scatter should not use a category axis
- position: 'bottom'
- }],
- yAxes: [{
- id: 'y-axis-1',
- type: 'linear',
- position: 'left'
- }]
- },
-
- tooltips: {
- callbacks: {
- title: function() {
- return ''; // doesn't make sense for scatter since data are formatted as a point
- },
- label: function(item) {
- return '(' + item.xLabel + ', ' + item.yLabel + ')';
- }
- }
- }
-});
-
-core_defaults._set('global', {
- datasets: {
- scatter: {
- showLine: false
- }
- }
-});
-
-// Scatter charts use line controllers
-var controller_scatter = controller_line;
-
-// NOTE export a map in which the key represents the controller type, not
-// the class, and so must be CamelCase in order to be correctly retrieved
-// by the controller in core.controller.js (`controllers[meta.type]`).
-
-var controllers = {
- bar: controller_bar,
- bubble: controller_bubble,
- doughnut: controller_doughnut,
- horizontalBar: controller_horizontalBar,
- line: controller_line,
- polarArea: controller_polarArea,
- pie: controller_pie,
- radar: controller_radar,
- scatter: controller_scatter
-};
-
-/**
- * Helper function to get relative position for an event
- * @param {Event|IEvent} event - The event to get the position for
- * @param {Chart} chart - The chart
- * @returns {object} the event position
- */
-function getRelativePosition(e, chart) {
- if (e.native) {
- return {
- x: e.x,
- y: e.y
- };
- }
-
- return helpers$1.getRelativePosition(e, chart);
-}
-
-/**
- * Helper function to traverse all of the visible elements in the chart
- * @param {Chart} chart - the chart
- * @param {function} handler - the callback to execute for each visible item
- */
-function parseVisibleItems(chart, handler) {
- var metasets = chart._getSortedVisibleDatasetMetas();
- var metadata, i, j, ilen, jlen, element;
-
- for (i = 0, ilen = metasets.length; i < ilen; ++i) {
- metadata = metasets[i].data;
- for (j = 0, jlen = metadata.length; j < jlen; ++j) {
- element = metadata[j];
- if (!element._view.skip) {
- handler(element);
- }
- }
- }
-}
-
-/**
- * Helper function to get the items that intersect the event position
- * @param {ChartElement[]} items - elements to filter
- * @param {object} position - the point to be nearest to
- * @return {ChartElement[]} the nearest items
- */
-function getIntersectItems(chart, position) {
- var elements = [];
-
- parseVisibleItems(chart, function(element) {
- if (element.inRange(position.x, position.y)) {
- elements.push(element);
- }
- });
-
- return elements;
-}
-
-/**
- * Helper function to get the items nearest to the event position considering all visible items in teh chart
- * @param {Chart} chart - the chart to look at elements from
- * @param {object} position - the point to be nearest to
- * @param {boolean} intersect - if true, only consider items that intersect the position
- * @param {function} distanceMetric - function to provide the distance between points
- * @return {ChartElement[]} the nearest items
- */
-function getNearestItems(chart, position, intersect, distanceMetric) {
- var minDistance = Number.POSITIVE_INFINITY;
- var nearestItems = [];
-
- parseVisibleItems(chart, function(element) {
- if (intersect && !element.inRange(position.x, position.y)) {
- return;
- }
-
- var center = element.getCenterPoint();
- var distance = distanceMetric(position, center);
- if (distance < minDistance) {
- nearestItems = [element];
- minDistance = distance;
- } else if (distance === minDistance) {
- // Can have multiple items at the same distance in which case we sort by size
- nearestItems.push(element);
- }
- });
-
- return nearestItems;
-}
-
-/**
- * Get a distance metric function for two points based on the
- * axis mode setting
- * @param {string} axis - the axis mode. x|y|xy
- */
-function getDistanceMetricForAxis(axis) {
- var useX = axis.indexOf('x') !== -1;
- var useY = axis.indexOf('y') !== -1;
-
- return function(pt1, pt2) {
- var deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0;
- var deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0;
- return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));
- };
-}
-
-function indexMode(chart, e, options) {
- var position = getRelativePosition(e, chart);
- // Default axis for index mode is 'x' to match old behaviour
- options.axis = options.axis || 'x';
- var distanceMetric = getDistanceMetricForAxis(options.axis);
- var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);
- var elements = [];
-
- if (!items.length) {
- return [];
- }
-
- chart._getSortedVisibleDatasetMetas().forEach(function(meta) {
- var element = meta.data[items[0]._index];
-
- // don't count items that are skipped (null data)
- if (element && !element._view.skip) {
- elements.push(element);
- }
- });
-
- return elements;
-}
-
-/**
- * @interface IInteractionOptions
- */
-/**
- * If true, only consider items that intersect the point
- * @name IInterfaceOptions#boolean
- * @type Boolean
- */
-
-/**
- * Contains interaction related functions
- * @namespace Chart.Interaction
- */
-var core_interaction = {
- // Helper function for different modes
- modes: {
- single: function(chart, e) {
- var position = getRelativePosition(e, chart);
- var elements = [];
-
- parseVisibleItems(chart, function(element) {
- if (element.inRange(position.x, position.y)) {
- elements.push(element);
- return elements;
- }
- });
-
- return elements.slice(0, 1);
- },
-
- /**
- * @function Chart.Interaction.modes.label
- * @deprecated since version 2.4.0
- * @todo remove at version 3
- * @private
- */
- label: indexMode,
-
- /**
- * Returns items at the same index. If the options.intersect parameter is true, we only return items if we intersect something
- * If the options.intersect mode is false, we find the nearest item and return the items at the same index as that item
- * @function Chart.Interaction.modes.index
- * @since v2.4.0
- * @param {Chart} chart - the chart we are returning items from
- * @param {Event} e - the event we are find things at
- * @param {IInteractionOptions} options - options to use during interaction
- * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
- */
- index: indexMode,
-
- /**
- * Returns items in the same dataset. If the options.intersect parameter is true, we only return items if we intersect something
- * If the options.intersect is false, we find the nearest item and return the items in that dataset
- * @function Chart.Interaction.modes.dataset
- * @param {Chart} chart - the chart we are returning items from
- * @param {Event} e - the event we are find things at
- * @param {IInteractionOptions} options - options to use during interaction
- * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
- */
- dataset: function(chart, e, options) {
- var position = getRelativePosition(e, chart);
- options.axis = options.axis || 'xy';
- var distanceMetric = getDistanceMetricForAxis(options.axis);
- var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);
-
- if (items.length > 0) {
- items = chart.getDatasetMeta(items[0]._datasetIndex).data;
- }
-
- return items;
- },
-
- /**
- * @function Chart.Interaction.modes.x-axis
- * @deprecated since version 2.4.0. Use index mode and intersect == true
- * @todo remove at version 3
- * @private
- */
- 'x-axis': function(chart, e) {
- return indexMode(chart, e, {intersect: false});
- },
-
- /**
- * Point mode returns all elements that hit test based on the event position
- * of the event
- * @function Chart.Interaction.modes.intersect
- * @param {Chart} chart - the chart we are returning items from
- * @param {Event} e - the event we are find things at
- * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
- */
- point: function(chart, e) {
- var position = getRelativePosition(e, chart);
- return getIntersectItems(chart, position);
- },
-
- /**
- * nearest mode returns the element closest to the point
- * @function Chart.Interaction.modes.intersect
- * @param {Chart} chart - the chart we are returning items from
- * @param {Event} e - the event we are find things at
- * @param {IInteractionOptions} options - options to use
- * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
- */
- nearest: function(chart, e, options) {
- var position = getRelativePosition(e, chart);
- options.axis = options.axis || 'xy';
- var distanceMetric = getDistanceMetricForAxis(options.axis);
- return getNearestItems(chart, position, options.intersect, distanceMetric);
- },
-
- /**
- * x mode returns the elements that hit-test at the current x coordinate
- * @function Chart.Interaction.modes.x
- * @param {Chart} chart - the chart we are returning items from
- * @param {Event} e - the event we are find things at
- * @param {IInteractionOptions} options - options to use
- * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
- */
- x: function(chart, e, options) {
- var position = getRelativePosition(e, chart);
- var items = [];
- var intersectsItem = false;
-
- parseVisibleItems(chart, function(element) {
- if (element.inXRange(position.x)) {
- items.push(element);
- }
-
- if (element.inRange(position.x, position.y)) {
- intersectsItem = true;
- }
- });
-
- // If we want to trigger on an intersect and we don't have any items
- // that intersect the position, return nothing
- if (options.intersect && !intersectsItem) {
- items = [];
- }
- return items;
- },
-
- /**
- * y mode returns the elements that hit-test at the current y coordinate
- * @function Chart.Interaction.modes.y
- * @param {Chart} chart - the chart we are returning items from
- * @param {Event} e - the event we are find things at
- * @param {IInteractionOptions} options - options to use
- * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
- */
- y: function(chart, e, options) {
- var position = getRelativePosition(e, chart);
- var items = [];
- var intersectsItem = false;
-
- parseVisibleItems(chart, function(element) {
- if (element.inYRange(position.y)) {
- items.push(element);
- }
-
- if (element.inRange(position.x, position.y)) {
- intersectsItem = true;
- }
- });
-
- // If we want to trigger on an intersect and we don't have any items
- // that intersect the position, return nothing
- if (options.intersect && !intersectsItem) {
- items = [];
- }
- return items;
- }
- }
-};
-
-var extend = helpers$1.extend;
-
-function filterByPosition(array, position) {
- return helpers$1.where(array, function(v) {
- return v.pos === position;
- });
-}
-
-function sortByWeight(array, reverse) {
- return array.sort(function(a, b) {
- var v0 = reverse ? b : a;
- var v1 = reverse ? a : b;
- return v0.weight === v1.weight ?
- v0.index - v1.index :
- v0.weight - v1.weight;
- });
-}
-
-function wrapBoxes(boxes) {
- var layoutBoxes = [];
- var i, ilen, box;
-
- for (i = 0, ilen = (boxes || []).length; i < ilen; ++i) {
- box = boxes[i];
- layoutBoxes.push({
- index: i,
- box: box,
- pos: box.position,
- horizontal: box.isHorizontal(),
- weight: box.weight
- });
- }
- return layoutBoxes;
-}
-
-function setLayoutDims(layouts, params) {
- var i, ilen, layout;
- for (i = 0, ilen = layouts.length; i < ilen; ++i) {
- layout = layouts[i];
- // store width used instead of chartArea.w in fitBoxes
- layout.width = layout.horizontal
- ? layout.box.fullWidth && params.availableWidth
- : params.vBoxMaxWidth;
- // store height used instead of chartArea.h in fitBoxes
- layout.height = layout.horizontal && params.hBoxMaxHeight;
- }
-}
-
-function buildLayoutBoxes(boxes) {
- var layoutBoxes = wrapBoxes(boxes);
- var left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true);
- var right = sortByWeight(filterByPosition(layoutBoxes, 'right'));
- var top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true);
- var bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom'));
-
- return {
- leftAndTop: left.concat(top),
- rightAndBottom: right.concat(bottom),
- chartArea: filterByPosition(layoutBoxes, 'chartArea'),
- vertical: left.concat(right),
- horizontal: top.concat(bottom)
- };
-}
-
-function getCombinedMax(maxPadding, chartArea, a, b) {
- return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]);
-}
-
-function updateDims(chartArea, params, layout) {
- var box = layout.box;
- var maxPadding = chartArea.maxPadding;
- var newWidth, newHeight;
-
- if (layout.size) {
- // this layout was already counted for, lets first reduce old size
- chartArea[layout.pos] -= layout.size;
- }
- layout.size = layout.horizontal ? box.height : box.width;
- chartArea[layout.pos] += layout.size;
-
- if (box.getPadding) {
- var boxPadding = box.getPadding();
- maxPadding.top = Math.max(maxPadding.top, boxPadding.top);
- maxPadding.left = Math.max(maxPadding.left, boxPadding.left);
- maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom);
- maxPadding.right = Math.max(maxPadding.right, boxPadding.right);
- }
-
- newWidth = params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right');
- newHeight = params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom');
-
- if (newWidth !== chartArea.w || newHeight !== chartArea.h) {
- chartArea.w = newWidth;
- chartArea.h = newHeight;
-
- // return true if chart area changed in layout's direction
- return layout.horizontal ? newWidth !== chartArea.w : newHeight !== chartArea.h;
- }
-}
-
-function handleMaxPadding(chartArea) {
- var maxPadding = chartArea.maxPadding;
-
- function updatePos(pos) {
- var change = Math.max(maxPadding[pos] - chartArea[pos], 0);
- chartArea[pos] += change;
- return change;
- }
- chartArea.y += updatePos('top');
- chartArea.x += updatePos('left');
- updatePos('right');
- updatePos('bottom');
-}
-
-function getMargins(horizontal, chartArea) {
- var maxPadding = chartArea.maxPadding;
-
- function marginForPositions(positions) {
- var margin = {left: 0, top: 0, right: 0, bottom: 0};
- positions.forEach(function(pos) {
- margin[pos] = Math.max(chartArea[pos], maxPadding[pos]);
- });
- return margin;
- }
-
- return horizontal
- ? marginForPositions(['left', 'right'])
- : marginForPositions(['top', 'bottom']);
-}
-
-function fitBoxes(boxes, chartArea, params) {
- var refitBoxes = [];
- var i, ilen, layout, box, refit, changed;
-
- for (i = 0, ilen = boxes.length; i < ilen; ++i) {
- layout = boxes[i];
- box = layout.box;
-
- box.update(
- layout.width || chartArea.w,
- layout.height || chartArea.h,
- getMargins(layout.horizontal, chartArea)
- );
- if (updateDims(chartArea, params, layout)) {
- changed = true;
- if (refitBoxes.length) {
- // Dimensions changed and there were non full width boxes before this
- // -> we have to refit those
- refit = true;
- }
- }
- if (!box.fullWidth) { // fullWidth boxes don't need to be re-fitted in any case
- refitBoxes.push(layout);
- }
- }
-
- return refit ? fitBoxes(refitBoxes, chartArea, params) || changed : changed;
-}
-
-function placeBoxes(boxes, chartArea, params) {
- var userPadding = params.padding;
- var x = chartArea.x;
- var y = chartArea.y;
- var i, ilen, layout, box;
-
- for (i = 0, ilen = boxes.length; i < ilen; ++i) {
- layout = boxes[i];
- box = layout.box;
- if (layout.horizontal) {
- box.left = box.fullWidth ? userPadding.left : chartArea.left;
- box.right = box.fullWidth ? params.outerWidth - userPadding.right : chartArea.left + chartArea.w;
- box.top = y;
- box.bottom = y + box.height;
- box.width = box.right - box.left;
- y = box.bottom;
- } else {
- box.left = x;
- box.right = x + box.width;
- box.top = chartArea.top;
- box.bottom = chartArea.top + chartArea.h;
- box.height = box.bottom - box.top;
- x = box.right;
- }
- }
-
- chartArea.x = x;
- chartArea.y = y;
-}
-
-core_defaults._set('global', {
- layout: {
- padding: {
- top: 0,
- right: 0,
- bottom: 0,
- left: 0
- }
- }
-});
-
-/**
- * @interface ILayoutItem
- * @prop {string} position - The position of the item in the chart layout. Possible values are
- * 'left', 'top', 'right', 'bottom', and 'chartArea'
- * @prop {number} weight - The weight used to sort the item. Higher weights are further away from the chart area
- * @prop {boolean} fullWidth - if true, and the item is horizontal, then push vertical boxes down
- * @prop {function} isHorizontal - returns true if the layout item is horizontal (ie. top or bottom)
- * @prop {function} update - Takes two parameters: width and height. Returns size of item
- * @prop {function} getPadding - Returns an object with padding on the edges
- * @prop {number} width - Width of item. Must be valid after update()
- * @prop {number} height - Height of item. Must be valid after update()
- * @prop {number} left - Left edge of the item. Set by layout system and cannot be used in update
- * @prop {number} top - Top edge of the item. Set by layout system and cannot be used in update
- * @prop {number} right - Right edge of the item. Set by layout system and cannot be used in update
- * @prop {number} bottom - Bottom edge of the item. Set by layout system and cannot be used in update
- */
-
-// The layout service is very self explanatory. It's responsible for the layout within a chart.
-// Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need
-// It is this service's responsibility of carrying out that layout.
-var core_layouts = {
- defaults: {},
-
- /**
- * Register a box to a chart.
- * A box is simply a reference to an object that requires layout. eg. Scales, Legend, Title.
- * @param {Chart} chart - the chart to use
- * @param {ILayoutItem} item - the item to add to be layed out
- */
- addBox: function(chart, item) {
- if (!chart.boxes) {
- chart.boxes = [];
- }
-
- // initialize item with default values
- item.fullWidth = item.fullWidth || false;
- item.position = item.position || 'top';
- item.weight = item.weight || 0;
- item._layers = item._layers || function() {
- return [{
- z: 0,
- draw: function() {
- item.draw.apply(item, arguments);
- }
- }];
- };
-
- chart.boxes.push(item);
- },
-
- /**
- * Remove a layoutItem from a chart
- * @param {Chart} chart - the chart to remove the box from
- * @param {ILayoutItem} layoutItem - the item to remove from the layout
- */
- removeBox: function(chart, layoutItem) {
- var index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;
- if (index !== -1) {
- chart.boxes.splice(index, 1);
- }
- },
-
- /**
- * Sets (or updates) options on the given `item`.
- * @param {Chart} chart - the chart in which the item lives (or will be added to)
- * @param {ILayoutItem} item - the item to configure with the given options
- * @param {object} options - the new item options.
- */
- configure: function(chart, item, options) {
- var props = ['fullWidth', 'position', 'weight'];
- var ilen = props.length;
- var i = 0;
- var prop;
-
- for (; i < ilen; ++i) {
- prop = props[i];
- if (options.hasOwnProperty(prop)) {
- item[prop] = options[prop];
- }
- }
- },
-
- /**
- * Fits boxes of the given chart into the given size by having each box measure itself
- * then running a fitting algorithm
- * @param {Chart} chart - the chart
- * @param {number} width - the width to fit into
- * @param {number} height - the height to fit into
- */
- update: function(chart, width, height) {
- if (!chart) {
- return;
- }
-
- var layoutOptions = chart.options.layout || {};
- var padding = helpers$1.options.toPadding(layoutOptions.padding);
-
- var availableWidth = width - padding.width;
- var availableHeight = height - padding.height;
- var boxes = buildLayoutBoxes(chart.boxes);
- var verticalBoxes = boxes.vertical;
- var horizontalBoxes = boxes.horizontal;
-
- // Essentially we now have any number of boxes on each of the 4 sides.
- // Our canvas looks like the following.
- // The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and
- // B1 is the bottom axis
- // There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays
- // These locations are single-box locations only, when trying to register a chartArea location that is already taken,
- // an error will be thrown.
- //
- // |----------------------------------------------------|
- // | T1 (Full Width) |
- // |----------------------------------------------------|
- // | | | T2 | |
- // | |----|-------------------------------------|----|
- // | | | C1 | | C2 | |
- // | | |----| |----| |
- // | | | | |
- // | L1 | L2 | ChartArea (C0) | R1 |
- // | | | | |
- // | | |----| |----| |
- // | | | C3 | | C4 | |
- // | |----|-------------------------------------|----|
- // | | | B1 | |
- // |----------------------------------------------------|
- // | B2 (Full Width) |
- // |----------------------------------------------------|
- //
-
- var params = Object.freeze({
- outerWidth: width,
- outerHeight: height,
- padding: padding,
- availableWidth: availableWidth,
- vBoxMaxWidth: availableWidth / 2 / verticalBoxes.length,
- hBoxMaxHeight: availableHeight / 2
- });
- var chartArea = extend({
- maxPadding: extend({}, padding),
- w: availableWidth,
- h: availableHeight,
- x: padding.left,
- y: padding.top
- }, padding);
-
- setLayoutDims(verticalBoxes.concat(horizontalBoxes), params);
-
- // First fit vertical boxes
- fitBoxes(verticalBoxes, chartArea, params);
-
- // Then fit horizontal boxes
- if (fitBoxes(horizontalBoxes, chartArea, params)) {
- // if the area changed, re-fit vertical boxes
- fitBoxes(verticalBoxes, chartArea, params);
- }
-
- handleMaxPadding(chartArea);
-
- // Finally place the boxes to correct coordinates
- placeBoxes(boxes.leftAndTop, chartArea, params);
-
- // Move to opposite side of chart
- chartArea.x += chartArea.w;
- chartArea.y += chartArea.h;
-
- placeBoxes(boxes.rightAndBottom, chartArea, params);
-
- chart.chartArea = {
- left: chartArea.left,
- top: chartArea.top,
- right: chartArea.left + chartArea.w,
- bottom: chartArea.top + chartArea.h
- };
-
- // Finally update boxes in chartArea (radial scale for example)
- helpers$1.each(boxes.chartArea, function(layout) {
- var box = layout.box;
- extend(box, chart.chartArea);
- box.update(chartArea.w, chartArea.h);
- });
- }
-};
-
-/**
- * Platform fallback implementation (minimal).
- * @see https://github.com/chartjs/Chart.js/pull/4591#issuecomment-319575939
- */
-
-var platform_basic = {
- acquireContext: function(item) {
- if (item && item.canvas) {
- // Support for any object associated to a canvas (including a context2d)
- item = item.canvas;
- }
-
- return item && item.getContext('2d') || null;
- }
-};
-
-var platform_dom = "/*\n * DOM element rendering detection\n * https://davidwalsh.name/detect-node-insertion\n */\n@keyframes chartjs-render-animation {\n\tfrom { opacity: 0.99; }\n\tto { opacity: 1; }\n}\n\n.chartjs-render-monitor {\n\tanimation: chartjs-render-animation 0.001s;\n}\n\n/*\n * DOM element resizing detection\n * https://github.com/marcj/css-element-queries\n */\n.chartjs-size-monitor,\n.chartjs-size-monitor-expand,\n.chartjs-size-monitor-shrink {\n\tposition: absolute;\n\tdirection: ltr;\n\tleft: 0;\n\ttop: 0;\n\tright: 0;\n\tbottom: 0;\n\toverflow: hidden;\n\tpointer-events: none;\n\tvisibility: hidden;\n\tz-index: -1;\n}\n\n.chartjs-size-monitor-expand > div {\n\tposition: absolute;\n\twidth: 1000000px;\n\theight: 1000000px;\n\tleft: 0;\n\ttop: 0;\n}\n\n.chartjs-size-monitor-shrink > div {\n\tposition: absolute;\n\twidth: 200%;\n\theight: 200%;\n\tleft: 0;\n\ttop: 0;\n}\n";
-
-var platform_dom$1 = /*#__PURE__*/Object.freeze({
-__proto__: null,
-'default': platform_dom
-});
-
-var stylesheet = getCjsExportFromNamespace(platform_dom$1);
-
-var EXPANDO_KEY = '$chartjs';
-var CSS_PREFIX = 'chartjs-';
-var CSS_SIZE_MONITOR = CSS_PREFIX + 'size-monitor';
-var CSS_RENDER_MONITOR = CSS_PREFIX + 'render-monitor';
-var CSS_RENDER_ANIMATION = CSS_PREFIX + 'render-animation';
-var ANIMATION_START_EVENTS = ['animationstart', 'webkitAnimationStart'];
-
-/**
- * DOM event types -> Chart.js event types.
- * Note: only events with different types are mapped.
- * @see https://developer.mozilla.org/en-US/docs/Web/Events
- */
-var EVENT_TYPES = {
- touchstart: 'mousedown',
- touchmove: 'mousemove',
- touchend: 'mouseup',
- pointerenter: 'mouseenter',
- pointerdown: 'mousedown',
- pointermove: 'mousemove',
- pointerup: 'mouseup',
- pointerleave: 'mouseout',
- pointerout: 'mouseout'
-};
-
-/**
- * The "used" size is the final value of a dimension property after all calculations have
- * been performed. This method uses the computed style of `element` but returns undefined
- * if the computed style is not expressed in pixels. That can happen in some cases where
- * `element` has a size relative to its parent and this last one is not yet displayed,
- * for example because of `display: none` on a parent node.
- * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value
- * @returns {number} Size in pixels or undefined if unknown.
- */
-function readUsedSize(element, property) {
- var value = helpers$1.getStyle(element, property);
- var matches = value && value.match(/^(\d+)(\.\d+)?px$/);
- return matches ? Number(matches[1]) : undefined;
-}
-
-/**
- * Initializes the canvas style and render size without modifying the canvas display size,
- * since responsiveness is handled by the controller.resize() method. The config is used
- * to determine the aspect ratio to apply in case no explicit height has been specified.
- */
-function initCanvas(canvas, config) {
- var style = canvas.style;
-
- // NOTE(SB) canvas.getAttribute('width') !== canvas.width: in the first case it
- // returns null or '' if no explicit value has been set to the canvas attribute.
- var renderHeight = canvas.getAttribute('height');
- var renderWidth = canvas.getAttribute('width');
-
- // Chart.js modifies some canvas values that we want to restore on destroy
- canvas[EXPANDO_KEY] = {
- initial: {
- height: renderHeight,
- width: renderWidth,
- style: {
- display: style.display,
- height: style.height,
- width: style.width
- }
- }
- };
-
- // Force canvas to display as block to avoid extra space caused by inline
- // elements, which would interfere with the responsive resize process.
- // https://github.com/chartjs/Chart.js/issues/2538
- style.display = style.display || 'block';
-
- if (renderWidth === null || renderWidth === '') {
- var displayWidth = readUsedSize(canvas, 'width');
- if (displayWidth !== undefined) {
- canvas.width = displayWidth;
- }
- }
-
- if (renderHeight === null || renderHeight === '') {
- if (canvas.style.height === '') {
- // If no explicit render height and style height, let's apply the aspect ratio,
- // which one can be specified by the user but also by charts as default option
- // (i.e. options.aspectRatio). If not specified, use canvas aspect ratio of 2.
- canvas.height = canvas.width / (config.options.aspectRatio || 2);
- } else {
- var displayHeight = readUsedSize(canvas, 'height');
- if (displayWidth !== undefined) {
- canvas.height = displayHeight;
- }
- }
- }
-
- return canvas;
-}
-
-/**
- * Detects support for options object argument in addEventListener.
- * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
- * @private
- */
-var supportsEventListenerOptions = (function() {
- var supports = false;
- try {
- var options = Object.defineProperty({}, 'passive', {
- // eslint-disable-next-line getter-return
- get: function() {
- supports = true;
- }
- });
- window.addEventListener('e', null, options);
- } catch (e) {
- // continue regardless of error
- }
- return supports;
-}());
-
-// Default passive to true as expected by Chrome for 'touchstart' and 'touchend' events.
-// https://github.com/chartjs/Chart.js/issues/4287
-var eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false;
-
-function addListener(node, type, listener) {
- node.addEventListener(type, listener, eventListenerOptions);
-}
-
-function removeListener(node, type, listener) {
- node.removeEventListener(type, listener, eventListenerOptions);
-}
-
-function createEvent(type, chart, x, y, nativeEvent) {
- return {
- type: type,
- chart: chart,
- native: nativeEvent || null,
- x: x !== undefined ? x : null,
- y: y !== undefined ? y : null,
- };
-}
-
-function fromNativeEvent(event, chart) {
- var type = EVENT_TYPES[event.type] || event.type;
- var pos = helpers$1.getRelativePosition(event, chart);
- return createEvent(type, chart, pos.x, pos.y, event);
-}
-
-function throttled(fn, thisArg) {
- var ticking = false;
- var args = [];
-
- return function() {
- args = Array.prototype.slice.call(arguments);
- thisArg = thisArg || this;
-
- if (!ticking) {
- ticking = true;
- helpers$1.requestAnimFrame.call(window, function() {
- ticking = false;
- fn.apply(thisArg, args);
- });
- }
- };
-}
-
-function createDiv(cls) {
- var el = document.createElement('div');
- el.className = cls || '';
- return el;
-}
-
-// Implementation based on https://github.com/marcj/css-element-queries
-function createResizer(handler) {
- var maxSize = 1000000;
-
- // NOTE(SB) Don't use innerHTML because it could be considered unsafe.
- // https://github.com/chartjs/Chart.js/issues/5902
- var resizer = createDiv(CSS_SIZE_MONITOR);
- var expand = createDiv(CSS_SIZE_MONITOR + '-expand');
- var shrink = createDiv(CSS_SIZE_MONITOR + '-shrink');
-
- expand.appendChild(createDiv());
- shrink.appendChild(createDiv());
-
- resizer.appendChild(expand);
- resizer.appendChild(shrink);
- resizer._reset = function() {
- expand.scrollLeft = maxSize;
- expand.scrollTop = maxSize;
- shrink.scrollLeft = maxSize;
- shrink.scrollTop = maxSize;
- };
-
- var onScroll = function() {
- resizer._reset();
- handler();
- };
-
- addListener(expand, 'scroll', onScroll.bind(expand, 'expand'));
- addListener(shrink, 'scroll', onScroll.bind(shrink, 'shrink'));
-
- return resizer;
-}
-
-// https://davidwalsh.name/detect-node-insertion
-function watchForRender(node, handler) {
- var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
- var proxy = expando.renderProxy = function(e) {
- if (e.animationName === CSS_RENDER_ANIMATION) {
- handler();
- }
- };
-
- helpers$1.each(ANIMATION_START_EVENTS, function(type) {
- addListener(node, type, proxy);
- });
-
- // #4737: Chrome might skip the CSS animation when the CSS_RENDER_MONITOR class
- // is removed then added back immediately (same animation frame?). Accessing the
- // `offsetParent` property will force a reflow and re-evaluate the CSS animation.
- // https://gist.github.com/paulirish/5d52fb081b3570c81e3a#box-metrics
- // https://github.com/chartjs/Chart.js/issues/4737
- expando.reflow = !!node.offsetParent;
-
- node.classList.add(CSS_RENDER_MONITOR);
-}
-
-function unwatchForRender(node) {
- var expando = node[EXPANDO_KEY] || {};
- var proxy = expando.renderProxy;
-
- if (proxy) {
- helpers$1.each(ANIMATION_START_EVENTS, function(type) {
- removeListener(node, type, proxy);
- });
-
- delete expando.renderProxy;
- }
-
- node.classList.remove(CSS_RENDER_MONITOR);
-}
-
-function addResizeListener(node, listener, chart) {
- var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
-
- // Let's keep track of this added resizer and thus avoid DOM query when removing it.
- var resizer = expando.resizer = createResizer(throttled(function() {
- if (expando.resizer) {
- var container = chart.options.maintainAspectRatio && node.parentNode;
- var w = container ? container.clientWidth : 0;
- listener(createEvent('resize', chart));
- if (container && container.clientWidth < w && chart.canvas) {
- // If the container size shrank during chart resize, let's assume
- // scrollbar appeared. So we resize again with the scrollbar visible -
- // effectively making chart smaller and the scrollbar hidden again.
- // Because we are inside `throttled`, and currently `ticking`, scroll
- // events are ignored during this whole 2 resize process.
- // If we assumed wrong and something else happened, we are resizing
- // twice in a frame (potential performance issue)
- listener(createEvent('resize', chart));
- }
- }
- }));
-
- // The resizer needs to be attached to the node parent, so we first need to be
- // sure that `node` is attached to the DOM before injecting the resizer element.
- watchForRender(node, function() {
- if (expando.resizer) {
- var container = node.parentNode;
- if (container && container !== resizer.parentNode) {
- container.insertBefore(resizer, container.firstChild);
- }
-
- // The container size might have changed, let's reset the resizer state.
- resizer._reset();
- }
- });
-}
-
-function removeResizeListener(node) {
- var expando = node[EXPANDO_KEY] || {};
- var resizer = expando.resizer;
-
- delete expando.resizer;
- unwatchForRender(node);
-
- if (resizer && resizer.parentNode) {
- resizer.parentNode.removeChild(resizer);
- }
-}
-
-/**
- * Injects CSS styles inline if the styles are not already present.
- * @param {HTMLDocument|ShadowRoot} rootNode - the node to contain the <style>.
- * @param {string} css - the CSS to be injected.
- */
-function injectCSS(rootNode, css) {
- // https://stackoverflow.com/q/3922139
- var expando = rootNode[EXPANDO_KEY] || (rootNode[EXPANDO_KEY] = {});
- if (!expando.containsStyles) {
- expando.containsStyles = true;
- css = '/* Chart.js */\n' + css;
- var style = document.createElement('style');
- style.setAttribute('type', 'text/css');
- style.appendChild(document.createTextNode(css));
- rootNode.appendChild(style);
- }
-}
-
-var platform_dom$2 = {
- /**
- * When `true`, prevents the automatic injection of the stylesheet required to
- * correctly detect when the chart is added to the DOM and then resized. This
- * switch has been added to allow external stylesheet (`dist/Chart(.min)?.js`)
- * to be manually imported to make this library compatible with any CSP.
- * See https://github.com/chartjs/Chart.js/issues/5208
- */
- disableCSSInjection: false,
-
- /**
- * This property holds whether this platform is enabled for the current environment.
- * Currently used by platform.js to select the proper implementation.
- * @private
- */
- _enabled: typeof window !== 'undefined' && typeof document !== 'undefined',
-
- /**
- * Initializes resources that depend on platform options.
- * @param {HTMLCanvasElement} canvas - The Canvas element.
- * @private
- */
- _ensureLoaded: function(canvas) {
- if (!this.disableCSSInjection) {
- // If the canvas is in a shadow DOM, then the styles must also be inserted
- // into the same shadow DOM.
- // https://github.com/chartjs/Chart.js/issues/5763
- var root = canvas.getRootNode ? canvas.getRootNode() : document;
- var targetNode = root.host ? root : document.head;
- injectCSS(targetNode, stylesheet);
- }
- },
-
- acquireContext: function(item, config) {
- if (typeof item === 'string') {
- item = document.getElementById(item);
- } else if (item.length) {
- // Support for array based queries (such as jQuery)
- item = item[0];
- }
-
- if (item && item.canvas) {
- // Support for any object associated to a canvas (including a context2d)
- item = item.canvas;
- }
-
- // To prevent canvas fingerprinting, some add-ons undefine the getContext
- // method, for example: https://github.com/kkapsner/CanvasBlocker
- // https://github.com/chartjs/Chart.js/issues/2807
- var context = item && item.getContext && item.getContext('2d');
-
- // `instanceof HTMLCanvasElement/CanvasRenderingContext2D` fails when the item is
- // inside an iframe or when running in a protected environment. We could guess the
- // types from their toString() value but let's keep things flexible and assume it's
- // a sufficient condition if the item has a context2D which has item as `canvas`.
- // https://github.com/chartjs/Chart.js/issues/3887
- // https://github.com/chartjs/Chart.js/issues/4102
- // https://github.com/chartjs/Chart.js/issues/4152
- if (context && context.canvas === item) {
- // Load platform resources on first chart creation, to make it possible to
- // import the library before setting platform options.
- this._ensureLoaded(item);
- initCanvas(item, config);
- return context;
- }
-
- return null;
- },
-
- releaseContext: function(context) {
- var canvas = context.canvas;
- if (!canvas[EXPANDO_KEY]) {
- return;
- }
-
- var initial = canvas[EXPANDO_KEY].initial;
- ['height', 'width'].forEach(function(prop) {
- var value = initial[prop];
- if (helpers$1.isNullOrUndef(value)) {
- canvas.removeAttribute(prop);
- } else {
- canvas.setAttribute(prop, value);
- }
- });
-
- helpers$1.each(initial.style || {}, function(value, key) {
- canvas.style[key] = value;
- });
-
- // The canvas render size might have been changed (and thus the state stack discarded),
- // we can't use save() and restore() to restore the initial state. So make sure that at
- // least the canvas context is reset to the default state by setting the canvas width.
- // https://www.w3.org/TR/2011/WD-html5-20110525/the-canvas-element.html
- // eslint-disable-next-line no-self-assign
- canvas.width = canvas.width;
-
- delete canvas[EXPANDO_KEY];
- },
-
- addEventListener: function(chart, type, listener) {
- var canvas = chart.canvas;
- if (type === 'resize') {
- // Note: the resize event is not supported on all browsers.
- addResizeListener(canvas, listener, chart);
- return;
- }
-
- var expando = listener[EXPANDO_KEY] || (listener[EXPANDO_KEY] = {});
- var proxies = expando.proxies || (expando.proxies = {});
- var proxy = proxies[chart.id + '_' + type] = function(event) {
- listener(fromNativeEvent(event, chart));
- };
-
- addListener(canvas, type, proxy);
- },
-
- removeEventListener: function(chart, type, listener) {
- var canvas = chart.canvas;
- if (type === 'resize') {
- // Note: the resize event is not supported on all browsers.
- removeResizeListener(canvas);
- return;
- }
-
- var expando = listener[EXPANDO_KEY] || {};
- var proxies = expando.proxies || {};
- var proxy = proxies[chart.id + '_' + type];
- if (!proxy) {
- return;
- }
-
- removeListener(canvas, type, proxy);
- }
-};
-
-// DEPRECATIONS
-
-/**
- * Provided for backward compatibility, use EventTarget.addEventListener instead.
- * EventTarget.addEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
- * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener
- * @function Chart.helpers.addEvent
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers$1.addEvent = addListener;
-
-/**
- * Provided for backward compatibility, use EventTarget.removeEventListener instead.
- * EventTarget.removeEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
- * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/removeEventListener
- * @function Chart.helpers.removeEvent
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers$1.removeEvent = removeListener;
-
-// @TODO Make possible to select another platform at build time.
-var implementation = platform_dom$2._enabled ? platform_dom$2 : platform_basic;
-
-/**
- * @namespace Chart.platform
- * @see https://chartjs.gitbooks.io/proposals/content/Platform.html
- * @since 2.4.0
- */
-var platform = helpers$1.extend({
- /**
- * @since 2.7.0
- */
- initialize: function() {},
-
- /**
- * Called at chart construction time, returns a context2d instance implementing
- * the [W3C Canvas 2D Context API standard]{@link https://www.w3.org/TR/2dcontext/}.
- * @param {*} item - The native item from which to acquire context (platform specific)
- * @param {object} options - The chart options
- * @returns {CanvasRenderingContext2D} context2d instance
- */
- acquireContext: function() {},
-
- /**
- * Called at chart destruction time, releases any resources associated to the context
- * previously returned by the acquireContext() method.
- * @param {CanvasRenderingContext2D} context - The context2d instance
- * @returns {boolean} true if the method succeeded, else false
- */
- releaseContext: function() {},
-
- /**
- * Registers the specified listener on the given chart.
- * @param {Chart} chart - Chart from which to listen for event
- * @param {string} type - The ({@link IEvent}) type to listen for
- * @param {function} listener - Receives a notification (an object that implements
- * the {@link IEvent} interface) when an event of the specified type occurs.
- */
- addEventListener: function() {},
-
- /**
- * Removes the specified listener previously registered with addEventListener.
- * @param {Chart} chart - Chart from which to remove the listener
- * @param {string} type - The ({@link IEvent}) type to remove
- * @param {function} listener - The listener function to remove from the event target.
- */
- removeEventListener: function() {}
-
-}, implementation);
-
-core_defaults._set('global', {
- plugins: {}
-});
-
-/**
- * The plugin service singleton
- * @namespace Chart.plugins
- * @since 2.1.0
- */
-var core_plugins = {
- /**
- * Globally registered plugins.
- * @private
- */
- _plugins: [],
-
- /**
- * This identifier is used to invalidate the descriptors cache attached to each chart
- * when a global plugin is registered or unregistered. In this case, the cache ID is
- * incremented and descriptors are regenerated during following API calls.
- * @private
- */
- _cacheId: 0,
-
- /**
- * Registers the given plugin(s) if not already registered.
- * @param {IPlugin[]|IPlugin} plugins plugin instance(s).
- */
- register: function(plugins) {
- var p = this._plugins;
- ([]).concat(plugins).forEach(function(plugin) {
- if (p.indexOf(plugin) === -1) {
- p.push(plugin);
- }
- });
-
- this._cacheId++;
- },
-
- /**
- * Unregisters the given plugin(s) only if registered.
- * @param {IPlugin[]|IPlugin} plugins plugin instance(s).
- */
- unregister: function(plugins) {
- var p = this._plugins;
- ([]).concat(plugins).forEach(function(plugin) {
- var idx = p.indexOf(plugin);
- if (idx !== -1) {
- p.splice(idx, 1);
- }
- });
-
- this._cacheId++;
- },
-
- /**
- * Remove all registered plugins.
- * @since 2.1.5
- */
- clear: function() {
- this._plugins = [];
- this._cacheId++;
- },
-
- /**
- * Returns the number of registered plugins?
- * @returns {number}
- * @since 2.1.5
- */
- count: function() {
- return this._plugins.length;
- },
-
- /**
- * Returns all registered plugin instances.
- * @returns {IPlugin[]} array of plugin objects.
- * @since 2.1.5
- */
- getAll: function() {
- return this._plugins;
- },
-
- /**
- * Calls enabled plugins for `chart` on the specified hook and with the given args.
- * This method immediately returns as soon as a plugin explicitly returns false. The
- * returned value can be used, for instance, to interrupt the current action.
- * @param {Chart} chart - The chart instance for which plugins should be called.
- * @param {string} hook - The name of the plugin method to call (e.g. 'beforeUpdate').
- * @param {Array} [args] - Extra arguments to apply to the hook call.
- * @returns {boolean} false if any of the plugins return false, else returns true.
- */
- notify: function(chart, hook, args) {
- var descriptors = this.descriptors(chart);
- var ilen = descriptors.length;
- var i, descriptor, plugin, params, method;
-
- for (i = 0; i < ilen; ++i) {
- descriptor = descriptors[i];
- plugin = descriptor.plugin;
- method = plugin[hook];
- if (typeof method === 'function') {
- params = [chart].concat(args || []);
- params.push(descriptor.options);
- if (method.apply(plugin, params) === false) {
- return false;
- }
- }
- }
-
- return true;
- },
-
- /**
- * Returns descriptors of enabled plugins for the given chart.
- * @returns {object[]} [{ plugin, options }]
- * @private
- */
- descriptors: function(chart) {
- var cache = chart.$plugins || (chart.$plugins = {});
- if (cache.id === this._cacheId) {
- return cache.descriptors;
- }
-
- var plugins = [];
- var descriptors = [];
- var config = (chart && chart.config) || {};
- var options = (config.options && config.options.plugins) || {};
-
- this._plugins.concat(config.plugins || []).forEach(function(plugin) {
- var idx = plugins.indexOf(plugin);
- if (idx !== -1) {
- return;
- }
-
- var id = plugin.id;
- var opts = options[id];
- if (opts === false) {
- return;
- }
-
- if (opts === true) {
- opts = helpers$1.clone(core_defaults.global.plugins[id]);
- }
-
- plugins.push(plugin);
- descriptors.push({
- plugin: plugin,
- options: opts || {}
- });
- });
-
- cache.descriptors = descriptors;
- cache.id = this._cacheId;
- return descriptors;
- },
-
- /**
- * Invalidates cache for the given chart: descriptors hold a reference on plugin option,
- * but in some cases, this reference can be changed by the user when updating options.
- * https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167
- * @private
- */
- _invalidate: function(chart) {
- delete chart.$plugins;
- }
-};
-
-var core_scaleService = {
- // Scale registration object. Extensions can register new scale types (such as log or DB scales) and then
- // use the new chart options to grab the correct scale
- constructors: {},
- // Use a registration function so that we can move to an ES6 map when we no longer need to support
- // old browsers
-
- // Scale config defaults
- defaults: {},
- registerScaleType: function(type, scaleConstructor, scaleDefaults) {
- this.constructors[type] = scaleConstructor;
- this.defaults[type] = helpers$1.clone(scaleDefaults);
- },
- getScaleConstructor: function(type) {
- return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined;
- },
- getScaleDefaults: function(type) {
- // Return the scale defaults merged with the global settings so that we always use the latest ones
- return this.defaults.hasOwnProperty(type) ? helpers$1.merge({}, [core_defaults.scale, this.defaults[type]]) : {};
- },
- updateScaleDefaults: function(type, additions) {
- var me = this;
- if (me.defaults.hasOwnProperty(type)) {
- me.defaults[type] = helpers$1.extend(me.defaults[type], additions);
- }
- },
- addScalesToLayout: function(chart) {
- // Adds each scale to the chart.boxes array to be sized accordingly
- helpers$1.each(chart.scales, function(scale) {
- // Set ILayoutItem parameters for backwards compatibility
- scale.fullWidth = scale.options.fullWidth;
- scale.position = scale.options.position;
- scale.weight = scale.options.weight;
- core_layouts.addBox(chart, scale);
- });
- }
-};
-
-var valueOrDefault$8 = helpers$1.valueOrDefault;
-var getRtlHelper = helpers$1.rtl.getRtlAdapter;
-
-core_defaults._set('global', {
- tooltips: {
- enabled: true,
- custom: null,
- mode: 'nearest',
- position: 'average',
- intersect: true,
- backgroundColor: 'rgba(0,0,0,0.8)',
- titleFontStyle: 'bold',
- titleSpacing: 2,
- titleMarginBottom: 6,
- titleFontColor: '#fff',
- titleAlign: 'left',
- bodySpacing: 2,
- bodyFontColor: '#fff',
- bodyAlign: 'left',
- footerFontStyle: 'bold',
- footerSpacing: 2,
- footerMarginTop: 6,
- footerFontColor: '#fff',
- footerAlign: 'left',
- yPadding: 6,
- xPadding: 6,
- caretPadding: 2,
- caretSize: 5,
- cornerRadius: 6,
- multiKeyBackground: '#fff',
- displayColors: true,
- borderColor: 'rgba(0,0,0,0)',
- borderWidth: 0,
- callbacks: {
- // Args are: (tooltipItems, data)
- beforeTitle: helpers$1.noop,
- title: function(tooltipItems, data) {
- var title = '';
- var labels = data.labels;
- var labelCount = labels ? labels.length : 0;
-
- if (tooltipItems.length > 0) {
- var item = tooltipItems[0];
- if (item.label) {
- title = item.label;
- } else if (item.xLabel) {
- title = item.xLabel;
- } else if (labelCount > 0 && item.index < labelCount) {
- title = labels[item.index];
- }
- }
-
- return title;
- },
- afterTitle: helpers$1.noop,
-
- // Args are: (tooltipItems, data)
- beforeBody: helpers$1.noop,
-
- // Args are: (tooltipItem, data)
- beforeLabel: helpers$1.noop,
- label: function(tooltipItem, data) {
- var label = data.datasets[tooltipItem.datasetIndex].label || '';
-
- if (label) {
- label += ': ';
- }
- if (!helpers$1.isNullOrUndef(tooltipItem.value)) {
- label += tooltipItem.value;
- } else {
- label += tooltipItem.yLabel;
- }
- return label;
- },
- labelColor: function(tooltipItem, chart) {
- var meta = chart.getDatasetMeta(tooltipItem.datasetIndex);
- var activeElement = meta.data[tooltipItem.index];
- var view = activeElement._view;
- return {
- borderColor: view.borderColor,
- backgroundColor: view.backgroundColor
- };
- },
- labelTextColor: function() {
- return this._options.bodyFontColor;
- },
- afterLabel: helpers$1.noop,
-
- // Args are: (tooltipItems, data)
- afterBody: helpers$1.noop,
-
- // Args are: (tooltipItems, data)
- beforeFooter: helpers$1.noop,
- footer: helpers$1.noop,
- afterFooter: helpers$1.noop
- }
- }
-});
-
-var positioners = {
- /**
- * Average mode places the tooltip at the average position of the elements shown
- * @function Chart.Tooltip.positioners.average
- * @param elements {ChartElement[]} the elements being displayed in the tooltip
- * @returns {object} tooltip position
- */
- average: function(elements) {
- if (!elements.length) {
- return false;
- }
-
- var i, len;
- var x = 0;
- var y = 0;
- var count = 0;
-
- for (i = 0, len = elements.length; i < len; ++i) {
- var el = elements[i];
- if (el && el.hasValue()) {
- var pos = el.tooltipPosition();
- x += pos.x;
- y += pos.y;
- ++count;
- }
- }
-
- return {
- x: x / count,
- y: y / count
- };
- },
-
- /**
- * Gets the tooltip position nearest of the item nearest to the event position
- * @function Chart.Tooltip.positioners.nearest
- * @param elements {Chart.Element[]} the tooltip elements
- * @param eventPosition {object} the position of the event in canvas coordinates
- * @returns {object} the tooltip position
- */
- nearest: function(elements, eventPosition) {
- var x = eventPosition.x;
- var y = eventPosition.y;
- var minDistance = Number.POSITIVE_INFINITY;
- var i, len, nearestElement;
-
- for (i = 0, len = elements.length; i < len; ++i) {
- var el = elements[i];
- if (el && el.hasValue()) {
- var center = el.getCenterPoint();
- var d = helpers$1.distanceBetweenPoints(eventPosition, center);
-
- if (d < minDistance) {
- minDistance = d;
- nearestElement = el;
- }
- }
- }
-
- if (nearestElement) {
- var tp = nearestElement.tooltipPosition();
- x = tp.x;
- y = tp.y;
- }
-
- return {
- x: x,
- y: y
- };
- }
-};
-
-// Helper to push or concat based on if the 2nd parameter is an array or not
-function pushOrConcat(base, toPush) {
- if (toPush) {
- if (helpers$1.isArray(toPush)) {
- // base = base.concat(toPush);
- Array.prototype.push.apply(base, toPush);
- } else {
- base.push(toPush);
- }
- }
-
- return base;
-}
-
-/**
- * Returns array of strings split by newline
- * @param {string} value - The value to split by newline.
- * @returns {string[]} value if newline present - Returned from String split() method
- * @function
- */
-function splitNewlines(str) {
- if ((typeof str === 'string' || str instanceof String) && str.indexOf('\n') > -1) {
- return str.split('\n');
- }
- return str;
-}
-
-
-/**
- * Private helper to create a tooltip item model
- * @param element - the chart element (point, arc, bar) to create the tooltip item for
- * @return new tooltip item
- */
-function createTooltipItem(element) {
- var xScale = element._xScale;
- var yScale = element._yScale || element._scale; // handle radar || polarArea charts
- var index = element._index;
- var datasetIndex = element._datasetIndex;
- var controller = element._chart.getDatasetMeta(datasetIndex).controller;
- var indexScale = controller._getIndexScale();
- var valueScale = controller._getValueScale();
-
- return {
- xLabel: xScale ? xScale.getLabelForIndex(index, datasetIndex) : '',
- yLabel: yScale ? yScale.getLabelForIndex(index, datasetIndex) : '',
- label: indexScale ? '' + indexScale.getLabelForIndex(index, datasetIndex) : '',
- value: valueScale ? '' + valueScale.getLabelForIndex(index, datasetIndex) : '',
- index: index,
- datasetIndex: datasetIndex,
- x: element._model.x,
- y: element._model.y
- };
-}
-
-/**
- * Helper to get the reset model for the tooltip
- * @param tooltipOpts {object} the tooltip options
- */
-function getBaseModel(tooltipOpts) {
- var globalDefaults = core_defaults.global;
-
- return {
- // Positioning
- xPadding: tooltipOpts.xPadding,
- yPadding: tooltipOpts.yPadding,
- xAlign: tooltipOpts.xAlign,
- yAlign: tooltipOpts.yAlign,
-
- // Drawing direction and text direction
- rtl: tooltipOpts.rtl,
- textDirection: tooltipOpts.textDirection,
-
- // Body
- bodyFontColor: tooltipOpts.bodyFontColor,
- _bodyFontFamily: valueOrDefault$8(tooltipOpts.bodyFontFamily, globalDefaults.defaultFontFamily),
- _bodyFontStyle: valueOrDefault$8(tooltipOpts.bodyFontStyle, globalDefaults.defaultFontStyle),
- _bodyAlign: tooltipOpts.bodyAlign,
- bodyFontSize: valueOrDefault$8(tooltipOpts.bodyFontSize, globalDefaults.defaultFontSize),
- bodySpacing: tooltipOpts.bodySpacing,
-
- // Title
- titleFontColor: tooltipOpts.titleFontColor,
- _titleFontFamily: valueOrDefault$8(tooltipOpts.titleFontFamily, globalDefaults.defaultFontFamily),
- _titleFontStyle: valueOrDefault$8(tooltipOpts.titleFontStyle, globalDefaults.defaultFontStyle),
- titleFontSize: valueOrDefault$8(tooltipOpts.titleFontSize, globalDefaults.defaultFontSize),
- _titleAlign: tooltipOpts.titleAlign,
- titleSpacing: tooltipOpts.titleSpacing,
- titleMarginBottom: tooltipOpts.titleMarginBottom,
-
- // Footer
- footerFontColor: tooltipOpts.footerFontColor,
- _footerFontFamily: valueOrDefault$8(tooltipOpts.footerFontFamily, globalDefaults.defaultFontFamily),
- _footerFontStyle: valueOrDefault$8(tooltipOpts.footerFontStyle, globalDefaults.defaultFontStyle),
- footerFontSize: valueOrDefault$8(tooltipOpts.footerFontSize, globalDefaults.defaultFontSize),
- _footerAlign: tooltipOpts.footerAlign,
- footerSpacing: tooltipOpts.footerSpacing,
- footerMarginTop: tooltipOpts.footerMarginTop,
-
- // Appearance
- caretSize: tooltipOpts.caretSize,
- cornerRadius: tooltipOpts.cornerRadius,
- backgroundColor: tooltipOpts.backgroundColor,
- opacity: 0,
- legendColorBackground: tooltipOpts.multiKeyBackground,
- displayColors: tooltipOpts.displayColors,
- borderColor: tooltipOpts.borderColor,
- borderWidth: tooltipOpts.borderWidth
- };
-}
-
-/**
- * Get the size of the tooltip
- */
-function getTooltipSize(tooltip, model) {
- var ctx = tooltip._chart.ctx;
-
- var height = model.yPadding * 2; // Tooltip Padding
- var width = 0;
-
- // Count of all lines in the body
- var body = model.body;
- var combinedBodyLength = body.reduce(function(count, bodyItem) {
- return count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length;
- }, 0);
- combinedBodyLength += model.beforeBody.length + model.afterBody.length;
-
- var titleLineCount = model.title.length;
- var footerLineCount = model.footer.length;
- var titleFontSize = model.titleFontSize;
- var bodyFontSize = model.bodyFontSize;
- var footerFontSize = model.footerFontSize;
-
- height += titleLineCount * titleFontSize; // Title Lines
- height += titleLineCount ? (titleLineCount - 1) * model.titleSpacing : 0; // Title Line Spacing
- height += titleLineCount ? model.titleMarginBottom : 0; // Title's bottom Margin
- height += combinedBodyLength * bodyFontSize; // Body Lines
- height += combinedBodyLength ? (combinedBodyLength - 1) * model.bodySpacing : 0; // Body Line Spacing
- height += footerLineCount ? model.footerMarginTop : 0; // Footer Margin
- height += footerLineCount * (footerFontSize); // Footer Lines
- height += footerLineCount ? (footerLineCount - 1) * model.footerSpacing : 0; // Footer Line Spacing
-
- // Title width
- var widthPadding = 0;
- var maxLineWidth = function(line) {
- width = Math.max(width, ctx.measureText(line).width + widthPadding);
- };
-
- ctx.font = helpers$1.fontString(titleFontSize, model._titleFontStyle, model._titleFontFamily);
- helpers$1.each(model.title, maxLineWidth);
-
- // Body width
- ctx.font = helpers$1.fontString(bodyFontSize, model._bodyFontStyle, model._bodyFontFamily);
- helpers$1.each(model.beforeBody.concat(model.afterBody), maxLineWidth);
-
- // Body lines may include some extra width due to the color box
- widthPadding = model.displayColors ? (bodyFontSize + 2) : 0;
- helpers$1.each(body, function(bodyItem) {
- helpers$1.each(bodyItem.before, maxLineWidth);
- helpers$1.each(bodyItem.lines, maxLineWidth);
- helpers$1.each(bodyItem.after, maxLineWidth);
- });
-
- // Reset back to 0
- widthPadding = 0;
-
- // Footer width
- ctx.font = helpers$1.fontString(footerFontSize, model._footerFontStyle, model._footerFontFamily);
- helpers$1.each(model.footer, maxLineWidth);
-
- // Add padding
- width += 2 * model.xPadding;
-
- return {
- width: width,
- height: height
- };
-}
-
-/**
- * Helper to get the alignment of a tooltip given the size
- */
-function determineAlignment(tooltip, size) {
- var model = tooltip._model;
- var chart = tooltip._chart;
- var chartArea = tooltip._chart.chartArea;
- var xAlign = 'center';
- var yAlign = 'center';
-
- if (model.y < size.height) {
- yAlign = 'top';
- } else if (model.y > (chart.height - size.height)) {
- yAlign = 'bottom';
- }
-
- var lf, rf; // functions to determine left, right alignment
- var olf, orf; // functions to determine if left/right alignment causes tooltip to go outside chart
- var yf; // function to get the y alignment if the tooltip goes outside of the left or right edges
- var midX = (chartArea.left + chartArea.right) / 2;
- var midY = (chartArea.top + chartArea.bottom) / 2;
-
- if (yAlign === 'center') {
- lf = function(x) {
- return x <= midX;
- };
- rf = function(x) {
- return x > midX;
- };
- } else {
- lf = function(x) {
- return x <= (size.width / 2);
- };
- rf = function(x) {
- return x >= (chart.width - (size.width / 2));
- };
- }
-
- olf = function(x) {
- return x + size.width + model.caretSize + model.caretPadding > chart.width;
- };
- orf = function(x) {
- return x - size.width - model.caretSize - model.caretPadding < 0;
- };
- yf = function(y) {
- return y <= midY ? 'top' : 'bottom';
- };
-
- if (lf(model.x)) {
- xAlign = 'left';
-
- // Is tooltip too wide and goes over the right side of the chart.?
- if (olf(model.x)) {
- xAlign = 'center';
- yAlign = yf(model.y);
- }
- } else if (rf(model.x)) {
- xAlign = 'right';
-
- // Is tooltip too wide and goes outside left edge of canvas?
- if (orf(model.x)) {
- xAlign = 'center';
- yAlign = yf(model.y);
- }
- }
-
- var opts = tooltip._options;
- return {
- xAlign: opts.xAlign ? opts.xAlign : xAlign,
- yAlign: opts.yAlign ? opts.yAlign : yAlign
- };
-}
-
-/**
- * Helper to get the location a tooltip needs to be placed at given the initial position (via the vm) and the size and alignment
- */
-function getBackgroundPoint(vm, size, alignment, chart) {
- // Background Position
- var x = vm.x;
- var y = vm.y;
-
- var caretSize = vm.caretSize;
- var caretPadding = vm.caretPadding;
- var cornerRadius = vm.cornerRadius;
- var xAlign = alignment.xAlign;
- var yAlign = alignment.yAlign;
- var paddingAndSize = caretSize + caretPadding;
- var radiusAndPadding = cornerRadius + caretPadding;
-
- if (xAlign === 'right') {
- x -= size.width;
- } else if (xAlign === 'center') {
- x -= (size.width / 2);
- if (x + size.width > chart.width) {
- x = chart.width - size.width;
- }
- if (x < 0) {
- x = 0;
- }
- }
-
- if (yAlign === 'top') {
- y += paddingAndSize;
- } else if (yAlign === 'bottom') {
- y -= size.height + paddingAndSize;
- } else {
- y -= (size.height / 2);
- }
-
- if (yAlign === 'center') {
- if (xAlign === 'left') {
- x += paddingAndSize;
- } else if (xAlign === 'right') {
- x -= paddingAndSize;
- }
- } else if (xAlign === 'left') {
- x -= radiusAndPadding;
- } else if (xAlign === 'right') {
- x += radiusAndPadding;
- }
-
- return {
- x: x,
- y: y
- };
-}
-
-function getAlignedX(vm, align) {
- return align === 'center'
- ? vm.x + vm.width / 2
- : align === 'right'
- ? vm.x + vm.width - vm.xPadding
- : vm.x + vm.xPadding;
-}
-
-/**
- * Helper to build before and after body lines
- */
-function getBeforeAfterBodyLines(callback) {
- return pushOrConcat([], splitNewlines(callback));
-}
-
-var exports$4 = core_element.extend({
- initialize: function() {
- this._model = getBaseModel(this._options);
- this._lastActive = [];
- },
-
- // Get the title
- // Args are: (tooltipItem, data)
- getTitle: function() {
- var me = this;
- var opts = me._options;
- var callbacks = opts.callbacks;
-
- var beforeTitle = callbacks.beforeTitle.apply(me, arguments);
- var title = callbacks.title.apply(me, arguments);
- var afterTitle = callbacks.afterTitle.apply(me, arguments);
-
- var lines = [];
- lines = pushOrConcat(lines, splitNewlines(beforeTitle));
- lines = pushOrConcat(lines, splitNewlines(title));
- lines = pushOrConcat(lines, splitNewlines(afterTitle));
-
- return lines;
- },
-
- // Args are: (tooltipItem, data)
- getBeforeBody: function() {
- return getBeforeAfterBodyLines(this._options.callbacks.beforeBody.apply(this, arguments));
- },
-
- // Args are: (tooltipItem, data)
- getBody: function(tooltipItems, data) {
- var me = this;
- var callbacks = me._options.callbacks;
- var bodyItems = [];
-
- helpers$1.each(tooltipItems, function(tooltipItem) {
- var bodyItem = {
- before: [],
- lines: [],
- after: []
- };
- pushOrConcat(bodyItem.before, splitNewlines(callbacks.beforeLabel.call(me, tooltipItem, data)));
- pushOrConcat(bodyItem.lines, callbacks.label.call(me, tooltipItem, data));
- pushOrConcat(bodyItem.after, splitNewlines(callbacks.afterLabel.call(me, tooltipItem, data)));
-
- bodyItems.push(bodyItem);
- });
-
- return bodyItems;
- },
-
- // Args are: (tooltipItem, data)
- getAfterBody: function() {
- return getBeforeAfterBodyLines(this._options.callbacks.afterBody.apply(this, arguments));
- },
-
- // Get the footer and beforeFooter and afterFooter lines
- // Args are: (tooltipItem, data)
- getFooter: function() {
- var me = this;
- var callbacks = me._options.callbacks;
-
- var beforeFooter = callbacks.beforeFooter.apply(me, arguments);
- var footer = callbacks.footer.apply(me, arguments);
- var afterFooter = callbacks.afterFooter.apply(me, arguments);
-
- var lines = [];
- lines = pushOrConcat(lines, splitNewlines(beforeFooter));
- lines = pushOrConcat(lines, splitNewlines(footer));
- lines = pushOrConcat(lines, splitNewlines(afterFooter));
-
- return lines;
- },
-
- update: function(changed) {
- var me = this;
- var opts = me._options;
-
- // Need to regenerate the model because its faster than using extend and it is necessary due to the optimization in Chart.Element.transition
- // that does _view = _model if ease === 1. This causes the 2nd tooltip update to set properties in both the view and model at the same time
- // which breaks any animations.
- var existingModel = me._model;
- var model = me._model = getBaseModel(opts);
- var active = me._active;
-
- var data = me._data;
-
- // In the case where active.length === 0 we need to keep these at existing values for good animations
- var alignment = {
- xAlign: existingModel.xAlign,
- yAlign: existingModel.yAlign
- };
- var backgroundPoint = {
- x: existingModel.x,
- y: existingModel.y
- };
- var tooltipSize = {
- width: existingModel.width,
- height: existingModel.height
- };
- var tooltipPosition = {
- x: existingModel.caretX,
- y: existingModel.caretY
- };
-
- var i, len;
-
- if (active.length) {
- model.opacity = 1;
-
- var labelColors = [];
- var labelTextColors = [];
- tooltipPosition = positioners[opts.position].call(me, active, me._eventPosition);
-
- var tooltipItems = [];
- for (i = 0, len = active.length; i < len; ++i) {
- tooltipItems.push(createTooltipItem(active[i]));
- }
-
- // If the user provided a filter function, use it to modify the tooltip items
- if (opts.filter) {
- tooltipItems = tooltipItems.filter(function(a) {
- return opts.filter(a, data);
- });
- }
-
- // If the user provided a sorting function, use it to modify the tooltip items
- if (opts.itemSort) {
- tooltipItems = tooltipItems.sort(function(a, b) {
- return opts.itemSort(a, b, data);
- });
- }
-
- // Determine colors for boxes
- helpers$1.each(tooltipItems, function(tooltipItem) {
- labelColors.push(opts.callbacks.labelColor.call(me, tooltipItem, me._chart));
- labelTextColors.push(opts.callbacks.labelTextColor.call(me, tooltipItem, me._chart));
- });
-
-
- // Build the Text Lines
- model.title = me.getTitle(tooltipItems, data);
- model.beforeBody = me.getBeforeBody(tooltipItems, data);
- model.body = me.getBody(tooltipItems, data);
- model.afterBody = me.getAfterBody(tooltipItems, data);
- model.footer = me.getFooter(tooltipItems, data);
-
- // Initial positioning and colors
- model.x = tooltipPosition.x;
- model.y = tooltipPosition.y;
- model.caretPadding = opts.caretPadding;
- model.labelColors = labelColors;
- model.labelTextColors = labelTextColors;
-
- // data points
- model.dataPoints = tooltipItems;
-
- // We need to determine alignment of the tooltip
- tooltipSize = getTooltipSize(this, model);
- alignment = determineAlignment(this, tooltipSize);
- // Final Size and Position
- backgroundPoint = getBackgroundPoint(model, tooltipSize, alignment, me._chart);
- } else {
- model.opacity = 0;
- }
-
- model.xAlign = alignment.xAlign;
- model.yAlign = alignment.yAlign;
- model.x = backgroundPoint.x;
- model.y = backgroundPoint.y;
- model.width = tooltipSize.width;
- model.height = tooltipSize.height;
-
- // Point where the caret on the tooltip points to
- model.caretX = tooltipPosition.x;
- model.caretY = tooltipPosition.y;
-
- me._model = model;
-
- if (changed && opts.custom) {
- opts.custom.call(me, model);
- }
-
- return me;
- },
-
- drawCaret: function(tooltipPoint, size) {
- var ctx = this._chart.ctx;
- var vm = this._view;
- var caretPosition = this.getCaretPosition(tooltipPoint, size, vm);
-
- ctx.lineTo(caretPosition.x1, caretPosition.y1);
- ctx.lineTo(caretPosition.x2, caretPosition.y2);
- ctx.lineTo(caretPosition.x3, caretPosition.y3);
- },
- getCaretPosition: function(tooltipPoint, size, vm) {
- var x1, x2, x3, y1, y2, y3;
- var caretSize = vm.caretSize;
- var cornerRadius = vm.cornerRadius;
- var xAlign = vm.xAlign;
- var yAlign = vm.yAlign;
- var ptX = tooltipPoint.x;
- var ptY = tooltipPoint.y;
- var width = size.width;
- var height = size.height;
-
- if (yAlign === 'center') {
- y2 = ptY + (height / 2);
-
- if (xAlign === 'left') {
- x1 = ptX;
- x2 = x1 - caretSize;
- x3 = x1;
-
- y1 = y2 + caretSize;
- y3 = y2 - caretSize;
- } else {
- x1 = ptX + width;
- x2 = x1 + caretSize;
- x3 = x1;
-
- y1 = y2 - caretSize;
- y3 = y2 + caretSize;
- }
- } else {
- if (xAlign === 'left') {
- x2 = ptX + cornerRadius + (caretSize);
- x1 = x2 - caretSize;
- x3 = x2 + caretSize;
- } else if (xAlign === 'right') {
- x2 = ptX + width - cornerRadius - caretSize;
- x1 = x2 - caretSize;
- x3 = x2 + caretSize;
- } else {
- x2 = vm.caretX;
- x1 = x2 - caretSize;
- x3 = x2 + caretSize;
- }
- if (yAlign === 'top') {
- y1 = ptY;
- y2 = y1 - caretSize;
- y3 = y1;
- } else {
- y1 = ptY + height;
- y2 = y1 + caretSize;
- y3 = y1;
- // invert drawing order
- var tmp = x3;
- x3 = x1;
- x1 = tmp;
- }
- }
- return {x1: x1, x2: x2, x3: x3, y1: y1, y2: y2, y3: y3};
- },
-
- drawTitle: function(pt, vm, ctx) {
- var title = vm.title;
- var length = title.length;
- var titleFontSize, titleSpacing, i;
-
- if (length) {
- var rtlHelper = getRtlHelper(vm.rtl, vm.x, vm.width);
-
- pt.x = getAlignedX(vm, vm._titleAlign);
-
- ctx.textAlign = rtlHelper.textAlign(vm._titleAlign);
- ctx.textBaseline = 'middle';
-
- titleFontSize = vm.titleFontSize;
- titleSpacing = vm.titleSpacing;
-
- ctx.fillStyle = vm.titleFontColor;
- ctx.font = helpers$1.fontString(titleFontSize, vm._titleFontStyle, vm._titleFontFamily);
-
- for (i = 0; i < length; ++i) {
- ctx.fillText(title[i], rtlHelper.x(pt.x), pt.y + titleFontSize / 2);
- pt.y += titleFontSize + titleSpacing; // Line Height and spacing
-
- if (i + 1 === length) {
- pt.y += vm.titleMarginBottom - titleSpacing; // If Last, add margin, remove spacing
- }
- }
- }
- },
-
- drawBody: function(pt, vm, ctx) {
- var bodyFontSize = vm.bodyFontSize;
- var bodySpacing = vm.bodySpacing;
- var bodyAlign = vm._bodyAlign;
- var body = vm.body;
- var drawColorBoxes = vm.displayColors;
- var xLinePadding = 0;
- var colorX = drawColorBoxes ? getAlignedX(vm, 'left') : 0;
-
- var rtlHelper = getRtlHelper(vm.rtl, vm.x, vm.width);
-
- var fillLineOfText = function(line) {
- ctx.fillText(line, rtlHelper.x(pt.x + xLinePadding), pt.y + bodyFontSize / 2);
- pt.y += bodyFontSize + bodySpacing;
- };
-
- var bodyItem, textColor, labelColors, lines, i, j, ilen, jlen;
- var bodyAlignForCalculation = rtlHelper.textAlign(bodyAlign);
-
- ctx.textAlign = bodyAlign;
- ctx.textBaseline = 'middle';
- ctx.font = helpers$1.fontString(bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily);
-
- pt.x = getAlignedX(vm, bodyAlignForCalculation);
-
- // Before body lines
- ctx.fillStyle = vm.bodyFontColor;
- helpers$1.each(vm.beforeBody, fillLineOfText);
-
- xLinePadding = drawColorBoxes && bodyAlignForCalculation !== 'right'
- ? bodyAlign === 'center' ? (bodyFontSize / 2 + 1) : (bodyFontSize + 2)
- : 0;
-
- // Draw body lines now
- for (i = 0, ilen = body.length; i < ilen; ++i) {
- bodyItem = body[i];
- textColor = vm.labelTextColors[i];
- labelColors = vm.labelColors[i];
-
- ctx.fillStyle = textColor;
- helpers$1.each(bodyItem.before, fillLineOfText);
-
- lines = bodyItem.lines;
- for (j = 0, jlen = lines.length; j < jlen; ++j) {
- // Draw Legend-like boxes if needed
- if (drawColorBoxes) {
- var rtlColorX = rtlHelper.x(colorX);
-
- // Fill a white rect so that colours merge nicely if the opacity is < 1
- ctx.fillStyle = vm.legendColorBackground;
- ctx.fillRect(rtlHelper.leftForLtr(rtlColorX, bodyFontSize), pt.y, bodyFontSize, bodyFontSize);
-
- // Border
- ctx.lineWidth = 1;
- ctx.strokeStyle = labelColors.borderColor;
- ctx.strokeRect(rtlHelper.leftForLtr(rtlColorX, bodyFontSize), pt.y, bodyFontSize, bodyFontSize);
-
- // Inner square
- ctx.fillStyle = labelColors.backgroundColor;
- ctx.fillRect(rtlHelper.leftForLtr(rtlHelper.xPlus(rtlColorX, 1), bodyFontSize - 2), pt.y + 1, bodyFontSize - 2, bodyFontSize - 2);
- ctx.fillStyle = textColor;
- }
-
- fillLineOfText(lines[j]);
- }
-
- helpers$1.each(bodyItem.after, fillLineOfText);
- }
-
- // Reset back to 0 for after body
- xLinePadding = 0;
-
- // After body lines
- helpers$1.each(vm.afterBody, fillLineOfText);
- pt.y -= bodySpacing; // Remove last body spacing
- },
-
- drawFooter: function(pt, vm, ctx) {
- var footer = vm.footer;
- var length = footer.length;
- var footerFontSize, i;
-
- if (length) {
- var rtlHelper = getRtlHelper(vm.rtl, vm.x, vm.width);
-
- pt.x = getAlignedX(vm, vm._footerAlign);
- pt.y += vm.footerMarginTop;
-
- ctx.textAlign = rtlHelper.textAlign(vm._footerAlign);
- ctx.textBaseline = 'middle';
-
- footerFontSize = vm.footerFontSize;
-
- ctx.fillStyle = vm.footerFontColor;
- ctx.font = helpers$1.fontString(footerFontSize, vm._footerFontStyle, vm._footerFontFamily);
-
- for (i = 0; i < length; ++i) {
- ctx.fillText(footer[i], rtlHelper.x(pt.x), pt.y + footerFontSize / 2);
- pt.y += footerFontSize + vm.footerSpacing;
- }
- }
- },
-
- drawBackground: function(pt, vm, ctx, tooltipSize) {
- ctx.fillStyle = vm.backgroundColor;
- ctx.strokeStyle = vm.borderColor;
- ctx.lineWidth = vm.borderWidth;
- var xAlign = vm.xAlign;
- var yAlign = vm.yAlign;
- var x = pt.x;
- var y = pt.y;
- var width = tooltipSize.width;
- var height = tooltipSize.height;
- var radius = vm.cornerRadius;
-
- ctx.beginPath();
- ctx.moveTo(x + radius, y);
- if (yAlign === 'top') {
- this.drawCaret(pt, tooltipSize);
- }
- ctx.lineTo(x + width - radius, y);
- ctx.quadraticCurveTo(x + width, y, x + width, y + radius);
- if (yAlign === 'center' && xAlign === 'right') {
- this.drawCaret(pt, tooltipSize);
- }
- ctx.lineTo(x + width, y + height - radius);
- ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height);
- if (yAlign === 'bottom') {
- this.drawCaret(pt, tooltipSize);
- }
- ctx.lineTo(x + radius, y + height);
- ctx.quadraticCurveTo(x, y + height, x, y + height - radius);
- if (yAlign === 'center' && xAlign === 'left') {
- this.drawCaret(pt, tooltipSize);
- }
- ctx.lineTo(x, y + radius);
- ctx.quadraticCurveTo(x, y, x + radius, y);
- ctx.closePath();
-
- ctx.fill();
-
- if (vm.borderWidth > 0) {
- ctx.stroke();
- }
- },
-
- draw: function() {
- var ctx = this._chart.ctx;
- var vm = this._view;
-
- if (vm.opacity === 0) {
- return;
- }
-
- var tooltipSize = {
- width: vm.width,
- height: vm.height
- };
- var pt = {
- x: vm.x,
- y: vm.y
- };
-
- // IE11/Edge does not like very small opacities, so snap to 0
- var opacity = Math.abs(vm.opacity < 1e-3) ? 0 : vm.opacity;
-
- // Truthy/falsey value for empty tooltip
- var hasTooltipContent = vm.title.length || vm.beforeBody.length || vm.body.length || vm.afterBody.length || vm.footer.length;
-
- if (this._options.enabled && hasTooltipContent) {
- ctx.save();
- ctx.globalAlpha = opacity;
-
- // Draw Background
- this.drawBackground(pt, vm, ctx, tooltipSize);
-
- // Draw Title, Body, and Footer
- pt.y += vm.yPadding;
-
- helpers$1.rtl.overrideTextDirection(ctx, vm.textDirection);
-
- // Titles
- this.drawTitle(pt, vm, ctx);
-
- // Body
- this.drawBody(pt, vm, ctx);
-
- // Footer
- this.drawFooter(pt, vm, ctx);
-
- helpers$1.rtl.restoreTextDirection(ctx, vm.textDirection);
-
- ctx.restore();
- }
- },
-
- /**
- * Handle an event
- * @private
- * @param {IEvent} event - The event to handle
- * @returns {boolean} true if the tooltip changed
- */
- handleEvent: function(e) {
- var me = this;
- var options = me._options;
- var changed = false;
-
- me._lastActive = me._lastActive || [];
-
- // Find Active Elements for tooltips
- if (e.type === 'mouseout') {
- me._active = [];
- } else {
- me._active = me._chart.getElementsAtEventForMode(e, options.mode, options);
- if (options.reverse) {
- me._active.reverse();
- }
- }
-
- // Remember Last Actives
- changed = !helpers$1.arrayEquals(me._active, me._lastActive);
-
- // Only handle target event on tooltip change
- if (changed) {
- me._lastActive = me._active;
-
- if (options.enabled || options.custom) {
- me._eventPosition = {
- x: e.x,
- y: e.y
- };
-
- me.update(true);
- me.pivot();
- }
- }
-
- return changed;
- }
-});
-
-/**
- * @namespace Chart.Tooltip.positioners
- */
-var positioners_1 = positioners;
-
-var core_tooltip = exports$4;
-core_tooltip.positioners = positioners_1;
-
-var valueOrDefault$9 = helpers$1.valueOrDefault;
-
-core_defaults._set('global', {
- elements: {},
- events: [
- 'mousemove',
- 'mouseout',
- 'click',
- 'touchstart',
- 'touchmove'
- ],
- hover: {
- onHover: null,
- mode: 'nearest',
- intersect: true,
- animationDuration: 400
- },
- onClick: null,
- maintainAspectRatio: true,
- responsive: true,
- responsiveAnimationDuration: 0
-});
-
-/**
- * Recursively merge the given config objects representing the `scales` option
- * by incorporating scale defaults in `xAxes` and `yAxes` array items, then
- * returns a deep copy of the result, thus doesn't alter inputs.
- */
-function mergeScaleConfig(/* config objects ... */) {
- return helpers$1.merge({}, [].slice.call(arguments), {
- merger: function(key, target, source, options) {
- if (key === 'xAxes' || key === 'yAxes') {
- var slen = source[key].length;
- var i, type, scale;
-
- if (!target[key]) {
- target[key] = [];
- }
-
- for (i = 0; i < slen; ++i) {
- scale = source[key][i];
- type = valueOrDefault$9(scale.type, key === 'xAxes' ? 'category' : 'linear');
-
- if (i >= target[key].length) {
- target[key].push({});
- }
-
- if (!target[key][i].type || (scale.type && scale.type !== target[key][i].type)) {
- // new/untyped scale or type changed: let's apply the new defaults
- // then merge source scale to correctly overwrite the defaults.
- helpers$1.merge(target[key][i], [core_scaleService.getScaleDefaults(type), scale]);
- } else {
- // scales type are the same
- helpers$1.merge(target[key][i], scale);
- }
- }
- } else {
- helpers$1._merger(key, target, source, options);
- }
- }
- });
-}
-
-/**
- * Recursively merge the given config objects as the root options by handling
- * default scale options for the `scales` and `scale` properties, then returns
- * a deep copy of the result, thus doesn't alter inputs.
- */
-function mergeConfig(/* config objects ... */) {
- return helpers$1.merge({}, [].slice.call(arguments), {
- merger: function(key, target, source, options) {
- var tval = target[key] || {};
- var sval = source[key];
-
- if (key === 'scales') {
- // scale config merging is complex. Add our own function here for that
- target[key] = mergeScaleConfig(tval, sval);
- } else if (key === 'scale') {
- // used in polar area & radar charts since there is only one scale
- target[key] = helpers$1.merge(tval, [core_scaleService.getScaleDefaults(sval.type), sval]);
- } else {
- helpers$1._merger(key, target, source, options);
- }
- }
- });
-}
-
-function initConfig(config) {
- config = config || {};
-
- // Do NOT use mergeConfig for the data object because this method merges arrays
- // and so would change references to labels and datasets, preventing data updates.
- var data = config.data = config.data || {};
- data.datasets = data.datasets || [];
- data.labels = data.labels || [];
-
- config.options = mergeConfig(
- core_defaults.global,
- core_defaults[config.type],
- config.options || {});
-
- return config;
-}
-
-function updateConfig(chart) {
- var newOptions = chart.options;
-
- helpers$1.each(chart.scales, function(scale) {
- core_layouts.removeBox(chart, scale);
- });
-
- newOptions = mergeConfig(
- core_defaults.global,
- core_defaults[chart.config.type],
- newOptions);
-
- chart.options = chart.config.options = newOptions;
- chart.ensureScalesHaveIDs();
- chart.buildOrUpdateScales();
-
- // Tooltip
- chart.tooltip._options = newOptions.tooltips;
- chart.tooltip.initialize();
-}
-
-function nextAvailableScaleId(axesOpts, prefix, index) {
- var id;
- var hasId = function(obj) {
- return obj.id === id;
- };
-
- do {
- id = prefix + index++;
- } while (helpers$1.findIndex(axesOpts, hasId) >= 0);
-
- return id;
-}
-
-function positionIsHorizontal(position) {
- return position === 'top' || position === 'bottom';
-}
-
-function compare2Level(l1, l2) {
- return function(a, b) {
- return a[l1] === b[l1]
- ? a[l2] - b[l2]
- : a[l1] - b[l1];
- };
-}
-
-var Chart = function(item, config) {
- this.construct(item, config);
- return this;
-};
-
-helpers$1.extend(Chart.prototype, /** @lends Chart */ {
- /**
- * @private
- */
- construct: function(item, config) {
- var me = this;
-
- config = initConfig(config);
-
- var context = platform.acquireContext(item, config);
- var canvas = context && context.canvas;
- var height = canvas && canvas.height;
- var width = canvas && canvas.width;
-
- me.id = helpers$1.uid();
- me.ctx = context;
- me.canvas = canvas;
- me.config = config;
- me.width = width;
- me.height = height;
- me.aspectRatio = height ? width / height : null;
- me.options = config.options;
- me._bufferedRender = false;
- me._layers = [];
-
- /**
- * Provided for backward compatibility, Chart and Chart.Controller have been merged,
- * the "instance" still need to be defined since it might be called from plugins.
- * @prop Chart#chart
- * @deprecated since version 2.6.0
- * @todo remove at version 3
- * @private
- */
- me.chart = me;
- me.controller = me; // chart.chart.controller #inception
-
- // Add the chart instance to the global namespace
- Chart.instances[me.id] = me;
-
- // Define alias to the config data: `chart.data === chart.config.data`
- Object.defineProperty(me, 'data', {
- get: function() {
- return me.config.data;
- },
- set: function(value) {
- me.config.data = value;
- }
- });
-
- if (!context || !canvas) {
- // The given item is not a compatible context2d element, let's return before finalizing
- // the chart initialization but after setting basic chart / controller properties that
- // can help to figure out that the chart is not valid (e.g chart.canvas !== null);
- // https://github.com/chartjs/Chart.js/issues/2807
- console.error("Failed to create chart: can't acquire context from the given item");
- return;
- }
-
- me.initialize();
- me.update();
- },
-
- /**
- * @private
- */
- initialize: function() {
- var me = this;
-
- // Before init plugin notification
- core_plugins.notify(me, 'beforeInit');
-
- helpers$1.retinaScale(me, me.options.devicePixelRatio);
-
- me.bindEvents();
-
- if (me.options.responsive) {
- // Initial resize before chart draws (must be silent to preserve initial animations).
- me.resize(true);
- }
-
- me.initToolTip();
-
- // After init plugin notification
- core_plugins.notify(me, 'afterInit');
-
- return me;
- },
-
- clear: function() {
- helpers$1.canvas.clear(this);
- return this;
- },
-
- stop: function() {
- // Stops any current animation loop occurring
- core_animations.cancelAnimation(this);
- return this;
- },
-
- resize: function(silent) {
- var me = this;
- var options = me.options;
- var canvas = me.canvas;
- var aspectRatio = (options.maintainAspectRatio && me.aspectRatio) || null;
-
- // the canvas render width and height will be casted to integers so make sure that
- // the canvas display style uses the same integer values to avoid blurring effect.
-
- // Set to 0 instead of canvas.size because the size defaults to 300x150 if the element is collapsed
- var newWidth = Math.max(0, Math.floor(helpers$1.getMaximumWidth(canvas)));
- var newHeight = Math.max(0, Math.floor(aspectRatio ? newWidth / aspectRatio : helpers$1.getMaximumHeight(canvas)));
-
- if (me.width === newWidth && me.height === newHeight) {
- return;
- }
-
- canvas.width = me.width = newWidth;
- canvas.height = me.height = newHeight;
- canvas.style.width = newWidth + 'px';
- canvas.style.height = newHeight + 'px';
-
- helpers$1.retinaScale(me, options.devicePixelRatio);
-
- if (!silent) {
- // Notify any plugins about the resize
- var newSize = {width: newWidth, height: newHeight};
- core_plugins.notify(me, 'resize', [newSize]);
-
- // Notify of resize
- if (options.onResize) {
- options.onResize(me, newSize);
- }
-
- me.stop();
- me.update({
- duration: options.responsiveAnimationDuration
- });
- }
- },
-
- ensureScalesHaveIDs: function() {
- var options = this.options;
- var scalesOptions = options.scales || {};
- var scaleOptions = options.scale;
-
- helpers$1.each(scalesOptions.xAxes, function(xAxisOptions, index) {
- if (!xAxisOptions.id) {
- xAxisOptions.id = nextAvailableScaleId(scalesOptions.xAxes, 'x-axis-', index);
- }
- });
-
- helpers$1.each(scalesOptions.yAxes, function(yAxisOptions, index) {
- if (!yAxisOptions.id) {
- yAxisOptions.id = nextAvailableScaleId(scalesOptions.yAxes, 'y-axis-', index);
- }
- });
-
- if (scaleOptions) {
- scaleOptions.id = scaleOptions.id || 'scale';
- }
- },
-
- /**
- * Builds a map of scale ID to scale object for future lookup.
- */
- buildOrUpdateScales: function() {
- var me = this;
- var options = me.options;
- var scales = me.scales || {};
- var items = [];
- var updated = Object.keys(scales).reduce(function(obj, id) {
- obj[id] = false;
- return obj;
- }, {});
-
- if (options.scales) {
- items = items.concat(
- (options.scales.xAxes || []).map(function(xAxisOptions) {
- return {options: xAxisOptions, dtype: 'category', dposition: 'bottom'};
- }),
- (options.scales.yAxes || []).map(function(yAxisOptions) {
- return {options: yAxisOptions, dtype: 'linear', dposition: 'left'};
- })
- );
- }
-
- if (options.scale) {
- items.push({
- options: options.scale,
- dtype: 'radialLinear',
- isDefault: true,
- dposition: 'chartArea'
- });
- }
-
- helpers$1.each(items, function(item) {
- var scaleOptions = item.options;
- var id = scaleOptions.id;
- var scaleType = valueOrDefault$9(scaleOptions.type, item.dtype);
-
- if (positionIsHorizontal(scaleOptions.position) !== positionIsHorizontal(item.dposition)) {
- scaleOptions.position = item.dposition;
- }
-
- updated[id] = true;
- var scale = null;
- if (id in scales && scales[id].type === scaleType) {
- scale = scales[id];
- scale.options = scaleOptions;
- scale.ctx = me.ctx;
- scale.chart = me;
- } else {
- var scaleClass = core_scaleService.getScaleConstructor(scaleType);
- if (!scaleClass) {
- return;
- }
- scale = new scaleClass({
- id: id,
- type: scaleType,
- options: scaleOptions,
- ctx: me.ctx,
- chart: me
- });
- scales[scale.id] = scale;
- }
-
- scale.mergeTicksOptions();
-
- // TODO(SB): I think we should be able to remove this custom case (options.scale)
- // and consider it as a regular scale part of the "scales"" map only! This would
- // make the logic easier and remove some useless? custom code.
- if (item.isDefault) {
- me.scale = scale;
- }
- });
- // clear up discarded scales
- helpers$1.each(updated, function(hasUpdated, id) {
- if (!hasUpdated) {
- delete scales[id];
- }
- });
-
- me.scales = scales;
-
- core_scaleService.addScalesToLayout(this);
- },
-
- buildOrUpdateControllers: function() {
- var me = this;
- var newControllers = [];
- var datasets = me.data.datasets;
- var i, ilen;
-
- for (i = 0, ilen = datasets.length; i < ilen; i++) {
- var dataset = datasets[i];
- var meta = me.getDatasetMeta(i);
- var type = dataset.type || me.config.type;
-
- if (meta.type && meta.type !== type) {
- me.destroyDatasetMeta(i);
- meta = me.getDatasetMeta(i);
- }
- meta.type = type;
- meta.order = dataset.order || 0;
- meta.index = i;
-
- if (meta.controller) {
- meta.controller.updateIndex(i);
- meta.controller.linkScales();
- } else {
- var ControllerClass = controllers[meta.type];
- if (ControllerClass === undefined) {
- throw new Error('"' + meta.type + '" is not a chart type.');
- }
-
- meta.controller = new ControllerClass(me, i);
- newControllers.push(meta.controller);
- }
- }
-
- return newControllers;
- },
-
- /**
- * Reset the elements of all datasets
- * @private
- */
- resetElements: function() {
- var me = this;
- helpers$1.each(me.data.datasets, function(dataset, datasetIndex) {
- me.getDatasetMeta(datasetIndex).controller.reset();
- }, me);
- },
-
- /**
- * Resets the chart back to it's state before the initial animation
- */
- reset: function() {
- this.resetElements();
- this.tooltip.initialize();
- },
-
- update: function(config) {
- var me = this;
- var i, ilen;
-
- if (!config || typeof config !== 'object') {
- // backwards compatibility
- config = {
- duration: config,
- lazy: arguments[1]
- };
- }
-
- updateConfig(me);
-
- // plugins options references might have change, let's invalidate the cache
- // https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167
- core_plugins._invalidate(me);
-
- if (core_plugins.notify(me, 'beforeUpdate') === false) {
- return;
- }
-
- // In case the entire data object changed
- me.tooltip._data = me.data;
-
- // Make sure dataset controllers are updated and new controllers are reset
- var newControllers = me.buildOrUpdateControllers();
-
- // Make sure all dataset controllers have correct meta data counts
- for (i = 0, ilen = me.data.datasets.length; i < ilen; i++) {
- me.getDatasetMeta(i).controller.buildOrUpdateElements();
- }
-
- me.updateLayout();
-
- // Can only reset the new controllers after the scales have been updated
- if (me.options.animation && me.options.animation.duration) {
- helpers$1.each(newControllers, function(controller) {
- controller.reset();
- });
- }
-
- me.updateDatasets();
-
- // Need to reset tooltip in case it is displayed with elements that are removed
- // after update.
- me.tooltip.initialize();
-
- // Last active contains items that were previously in the tooltip.
- // When we reset the tooltip, we need to clear it
- me.lastActive = [];
-
- // Do this before render so that any plugins that need final scale updates can use it
- core_plugins.notify(me, 'afterUpdate');
-
- me._layers.sort(compare2Level('z', '_idx'));
-
- if (me._bufferedRender) {
- me._bufferedRequest = {
- duration: config.duration,
- easing: config.easing,
- lazy: config.lazy
- };
- } else {
- me.render(config);
- }
- },
-
- /**
- * Updates the chart layout unless a plugin returns `false` to the `beforeLayout`
- * hook, in which case, plugins will not be called on `afterLayout`.
- * @private
- */
- updateLayout: function() {
- var me = this;
-
- if (core_plugins.notify(me, 'beforeLayout') === false) {
- return;
- }
-
- core_layouts.update(this, this.width, this.height);
-
- me._layers = [];
- helpers$1.each(me.boxes, function(box) {
- // _configure is called twice, once in core.scale.update and once here.
- // Here the boxes are fully updated and at their final positions.
- if (box._configure) {
- box._configure();
- }
- me._layers.push.apply(me._layers, box._layers());
- }, me);
-
- me._layers.forEach(function(item, index) {
- item._idx = index;
- });
-
- /**
- * Provided for backward compatibility, use `afterLayout` instead.
- * @method IPlugin#afterScaleUpdate
- * @deprecated since version 2.5.0
- * @todo remove at version 3
- * @private
- */
- core_plugins.notify(me, 'afterScaleUpdate');
- core_plugins.notify(me, 'afterLayout');
- },
-
- /**
- * Updates all datasets unless a plugin returns `false` to the `beforeDatasetsUpdate`
- * hook, in which case, plugins will not be called on `afterDatasetsUpdate`.
- * @private
- */
- updateDatasets: function() {
- var me = this;
-
- if (core_plugins.notify(me, 'beforeDatasetsUpdate') === false) {
- return;
- }
-
- for (var i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
- me.updateDataset(i);
- }
-
- core_plugins.notify(me, 'afterDatasetsUpdate');
- },
-
- /**
- * Updates dataset at index unless a plugin returns `false` to the `beforeDatasetUpdate`
- * hook, in which case, plugins will not be called on `afterDatasetUpdate`.
- * @private
- */
- updateDataset: function(index) {
- var me = this;
- var meta = me.getDatasetMeta(index);
- var args = {
- meta: meta,
- index: index
- };
-
- if (core_plugins.notify(me, 'beforeDatasetUpdate', [args]) === false) {
- return;
- }
-
- meta.controller._update();
-
- core_plugins.notify(me, 'afterDatasetUpdate', [args]);
- },
-
- render: function(config) {
- var me = this;
-
- if (!config || typeof config !== 'object') {
- // backwards compatibility
- config = {
- duration: config,
- lazy: arguments[1]
- };
- }
-
- var animationOptions = me.options.animation;
- var duration = valueOrDefault$9(config.duration, animationOptions && animationOptions.duration);
- var lazy = config.lazy;
-
- if (core_plugins.notify(me, 'beforeRender') === false) {
- return;
- }
-
- var onComplete = function(animation) {
- core_plugins.notify(me, 'afterRender');
- helpers$1.callback(animationOptions && animationOptions.onComplete, [animation], me);
- };
-
- if (animationOptions && duration) {
- var animation = new core_animation({
- numSteps: duration / 16.66, // 60 fps
- easing: config.easing || animationOptions.easing,
-
- render: function(chart, animationObject) {
- var easingFunction = helpers$1.easing.effects[animationObject.easing];
- var currentStep = animationObject.currentStep;
- var stepDecimal = currentStep / animationObject.numSteps;
-
- chart.draw(easingFunction(stepDecimal), stepDecimal, currentStep);
- },
-
- onAnimationProgress: animationOptions.onProgress,
- onAnimationComplete: onComplete
- });
-
- core_animations.addAnimation(me, animation, duration, lazy);
- } else {
- me.draw();
-
- // See https://github.com/chartjs/Chart.js/issues/3781
- onComplete(new core_animation({numSteps: 0, chart: me}));
- }
-
- return me;
- },
-
- draw: function(easingValue) {
- var me = this;
- var i, layers;
-
- me.clear();
-
- if (helpers$1.isNullOrUndef(easingValue)) {
- easingValue = 1;
- }
-
- me.transition(easingValue);
-
- if (me.width <= 0 || me.height <= 0) {
- return;
- }
-
- if (core_plugins.notify(me, 'beforeDraw', [easingValue]) === false) {
- return;
- }
-
- // Because of plugin hooks (before/afterDatasetsDraw), datasets can't
- // currently be part of layers. Instead, we draw
- // layers <= 0 before(default, backward compat), and the rest after
- layers = me._layers;
- for (i = 0; i < layers.length && layers[i].z <= 0; ++i) {
- layers[i].draw(me.chartArea);
- }
-
- me.drawDatasets(easingValue);
-
- // Rest of layers
- for (; i < layers.length; ++i) {
- layers[i].draw(me.chartArea);
- }
-
- me._drawTooltip(easingValue);
-
- core_plugins.notify(me, 'afterDraw', [easingValue]);
- },
-
- /**
- * @private
- */
- transition: function(easingValue) {
- var me = this;
-
- for (var i = 0, ilen = (me.data.datasets || []).length; i < ilen; ++i) {
- if (me.isDatasetVisible(i)) {
- me.getDatasetMeta(i).controller.transition(easingValue);
- }
- }
-
- me.tooltip.transition(easingValue);
- },
-
- /**
- * @private
- */
- _getSortedDatasetMetas: function(filterVisible) {
- var me = this;
- var datasets = me.data.datasets || [];
- var result = [];
- var i, ilen;
-
- for (i = 0, ilen = datasets.length; i < ilen; ++i) {
- if (!filterVisible || me.isDatasetVisible(i)) {
- result.push(me.getDatasetMeta(i));
- }
- }
-
- result.sort(compare2Level('order', 'index'));
-
- return result;
- },
-
- /**
- * @private
- */
- _getSortedVisibleDatasetMetas: function() {
- return this._getSortedDatasetMetas(true);
- },
-
- /**
- * Draws all datasets unless a plugin returns `false` to the `beforeDatasetsDraw`
- * hook, in which case, plugins will not be called on `afterDatasetsDraw`.
- * @private
- */
- drawDatasets: function(easingValue) {
- var me = this;
- var metasets, i;
-
- if (core_plugins.notify(me, 'beforeDatasetsDraw', [easingValue]) === false) {
- return;
- }
-
- metasets = me._getSortedVisibleDatasetMetas();
- for (i = metasets.length - 1; i >= 0; --i) {
- me.drawDataset(metasets[i], easingValue);
- }
-
- core_plugins.notify(me, 'afterDatasetsDraw', [easingValue]);
- },
-
- /**
- * Draws dataset at index unless a plugin returns `false` to the `beforeDatasetDraw`
- * hook, in which case, plugins will not be called on `afterDatasetDraw`.
- * @private
- */
- drawDataset: function(meta, easingValue) {
- var me = this;
- var args = {
- meta: meta,
- index: meta.index,
- easingValue: easingValue
- };
-
- if (core_plugins.notify(me, 'beforeDatasetDraw', [args]) === false) {
- return;
- }
-
- meta.controller.draw(easingValue);
-
- core_plugins.notify(me, 'afterDatasetDraw', [args]);
- },
-
- /**
- * Draws tooltip unless a plugin returns `false` to the `beforeTooltipDraw`
- * hook, in which case, plugins will not be called on `afterTooltipDraw`.
- * @private
- */
- _drawTooltip: function(easingValue) {
- var me = this;
- var tooltip = me.tooltip;
- var args = {
- tooltip: tooltip,
- easingValue: easingValue
- };
-
- if (core_plugins.notify(me, 'beforeTooltipDraw', [args]) === false) {
- return;
- }
-
- tooltip.draw();
-
- core_plugins.notify(me, 'afterTooltipDraw', [args]);
- },
-
- /**
- * Get the single element that was clicked on
- * @return An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw
- */
- getElementAtEvent: function(e) {
- return core_interaction.modes.single(this, e);
- },
-
- getElementsAtEvent: function(e) {
- return core_interaction.modes.label(this, e, {intersect: true});
- },
-
- getElementsAtXAxis: function(e) {
- return core_interaction.modes['x-axis'](this, e, {intersect: true});
- },
-
- getElementsAtEventForMode: function(e, mode, options) {
- var method = core_interaction.modes[mode];
- if (typeof method === 'function') {
- return method(this, e, options);
- }
-
- return [];
- },
-
- getDatasetAtEvent: function(e) {
- return core_interaction.modes.dataset(this, e, {intersect: true});
- },
-
- getDatasetMeta: function(datasetIndex) {
- var me = this;
- var dataset = me.data.datasets[datasetIndex];
- if (!dataset._meta) {
- dataset._meta = {};
- }
-
- var meta = dataset._meta[me.id];
- if (!meta) {
- meta = dataset._meta[me.id] = {
- type: null,
- data: [],
- dataset: null,
- controller: null,
- hidden: null, // See isDatasetVisible() comment
- xAxisID: null,
- yAxisID: null,
- order: dataset.order || 0,
- index: datasetIndex
- };
- }
-
- return meta;
- },
-
- getVisibleDatasetCount: function() {
- var count = 0;
- for (var i = 0, ilen = this.data.datasets.length; i < ilen; ++i) {
- if (this.isDatasetVisible(i)) {
- count++;
- }
- }
- return count;
- },
-
- isDatasetVisible: function(datasetIndex) {
- var meta = this.getDatasetMeta(datasetIndex);
-
- // meta.hidden is a per chart dataset hidden flag override with 3 states: if true or false,
- // the dataset.hidden value is ignored, else if null, the dataset hidden state is returned.
- return typeof meta.hidden === 'boolean' ? !meta.hidden : !this.data.datasets[datasetIndex].hidden;
- },
-
- generateLegend: function() {
- return this.options.legendCallback(this);
- },
-
- /**
- * @private
- */
- destroyDatasetMeta: function(datasetIndex) {
- var id = this.id;
- var dataset = this.data.datasets[datasetIndex];
- var meta = dataset._meta && dataset._meta[id];
-
- if (meta) {
- meta.controller.destroy();
- delete dataset._meta[id];
- }
- },
-
- destroy: function() {
- var me = this;
- var canvas = me.canvas;
- var i, ilen;
-
- me.stop();
-
- // dataset controllers need to cleanup associated data
- for (i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
- me.destroyDatasetMeta(i);
- }
-
- if (canvas) {
- me.unbindEvents();
- helpers$1.canvas.clear(me);
- platform.releaseContext(me.ctx);
- me.canvas = null;
- me.ctx = null;
- }
-
- core_plugins.notify(me, 'destroy');
-
- delete Chart.instances[me.id];
- },
-
- toBase64Image: function() {
- return this.canvas.toDataURL.apply(this.canvas, arguments);
- },
-
- initToolTip: function() {
- var me = this;
- me.tooltip = new core_tooltip({
- _chart: me,
- _chartInstance: me, // deprecated, backward compatibility
- _data: me.data,
- _options: me.options.tooltips
- }, me);
- },
-
- /**
- * @private
- */
- bindEvents: function() {
- var me = this;
- var listeners = me._listeners = {};
- var listener = function() {
- me.eventHandler.apply(me, arguments);
- };
-
- helpers$1.each(me.options.events, function(type) {
- platform.addEventListener(me, type, listener);
- listeners[type] = listener;
- });
-
- // Elements used to detect size change should not be injected for non responsive charts.
- // See https://github.com/chartjs/Chart.js/issues/2210
- if (me.options.responsive) {
- listener = function() {
- me.resize();
- };
-
- platform.addEventListener(me, 'resize', listener);
- listeners.resize = listener;
- }
- },
-
- /**
- * @private
- */
- unbindEvents: function() {
- var me = this;
- var listeners = me._listeners;
- if (!listeners) {
- return;
- }
-
- delete me._listeners;
- helpers$1.each(listeners, function(listener, type) {
- platform.removeEventListener(me, type, listener);
- });
- },
-
- updateHoverStyle: function(elements, mode, enabled) {
- var prefix = enabled ? 'set' : 'remove';
- var element, i, ilen;
-
- for (i = 0, ilen = elements.length; i < ilen; ++i) {
- element = elements[i];
- if (element) {
- this.getDatasetMeta(element._datasetIndex).controller[prefix + 'HoverStyle'](element);
- }
- }
-
- if (mode === 'dataset') {
- this.getDatasetMeta(elements[0]._datasetIndex).controller['_' + prefix + 'DatasetHoverStyle']();
- }
- },
-
- /**
- * @private
- */
- eventHandler: function(e) {
- var me = this;
- var tooltip = me.tooltip;
-
- if (core_plugins.notify(me, 'beforeEvent', [e]) === false) {
- return;
- }
-
- // Buffer any update calls so that renders do not occur
- me._bufferedRender = true;
- me._bufferedRequest = null;
-
- var changed = me.handleEvent(e);
- // for smooth tooltip animations issue #4989
- // the tooltip should be the source of change
- // Animation check workaround:
- // tooltip._start will be null when tooltip isn't animating
- if (tooltip) {
- changed = tooltip._start
- ? tooltip.handleEvent(e)
- : changed | tooltip.handleEvent(e);
- }
-
- core_plugins.notify(me, 'afterEvent', [e]);
-
- var bufferedRequest = me._bufferedRequest;
- if (bufferedRequest) {
- // If we have an update that was triggered, we need to do a normal render
- me.render(bufferedRequest);
- } else if (changed && !me.animating) {
- // If entering, leaving, or changing elements, animate the change via pivot
- me.stop();
-
- // We only need to render at this point. Updating will cause scales to be
- // recomputed generating flicker & using more memory than necessary.
- me.render({
- duration: me.options.hover.animationDuration,
- lazy: true
- });
- }
-
- me._bufferedRender = false;
- me._bufferedRequest = null;
-
- return me;
- },
-
- /**
- * Handle an event
- * @private
- * @param {IEvent} event the event to handle
- * @return {boolean} true if the chart needs to re-render
- */
- handleEvent: function(e) {
- var me = this;
- var options = me.options || {};
- var hoverOptions = options.hover;
- var changed = false;
-
- me.lastActive = me.lastActive || [];
-
- // Find Active Elements for hover and tooltips
- if (e.type === 'mouseout') {
- me.active = [];
- } else {
- me.active = me.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions);
- }
-
- // Invoke onHover hook
- // Need to call with native event here to not break backwards compatibility
- helpers$1.callback(options.onHover || options.hover.onHover, [e.native, me.active], me);
-
- if (e.type === 'mouseup' || e.type === 'click') {
- if (options.onClick) {
- // Use e.native here for backwards compatibility
- options.onClick.call(me, e.native, me.active);
- }
- }
-
- // Remove styling for last active (even if it may still be active)
- if (me.lastActive.length) {
- me.updateHoverStyle(me.lastActive, hoverOptions.mode, false);
- }
-
- // Built in hover styling
- if (me.active.length && hoverOptions.mode) {
- me.updateHoverStyle(me.active, hoverOptions.mode, true);
- }
-
- changed = !helpers$1.arrayEquals(me.active, me.lastActive);
-
- // Remember Last Actives
- me.lastActive = me.active;
-
- return changed;
- }
-});
-
-/**
- * NOTE(SB) We actually don't use this container anymore but we need to keep it
- * for backward compatibility. Though, it can still be useful for plugins that
- * would need to work on multiple charts?!
- */
-Chart.instances = {};
-
-var core_controller = Chart;
-
-// DEPRECATIONS
-
-/**
- * Provided for backward compatibility, use Chart instead.
- * @class Chart.Controller
- * @deprecated since version 2.6
- * @todo remove at version 3
- * @private
- */
-Chart.Controller = Chart;
-
-/**
- * Provided for backward compatibility, not available anymore.
- * @namespace Chart
- * @deprecated since version 2.8
- * @todo remove at version 3
- * @private
- */
-Chart.types = {};
-
-/**
- * Provided for backward compatibility, not available anymore.
- * @namespace Chart.helpers.configMerge
- * @deprecated since version 2.8.0
- * @todo remove at version 3
- * @private
- */
-helpers$1.configMerge = mergeConfig;
-
-/**
- * Provided for backward compatibility, not available anymore.
- * @namespace Chart.helpers.scaleMerge
- * @deprecated since version 2.8.0
- * @todo remove at version 3
- * @private
- */
-helpers$1.scaleMerge = mergeScaleConfig;
-
-var core_helpers = function() {
-
- // -- Basic js utility methods
-
- helpers$1.where = function(collection, filterCallback) {
- if (helpers$1.isArray(collection) && Array.prototype.filter) {
- return collection.filter(filterCallback);
- }
- var filtered = [];
-
- helpers$1.each(collection, function(item) {
- if (filterCallback(item)) {
- filtered.push(item);
- }
- });
-
- return filtered;
- };
- helpers$1.findIndex = Array.prototype.findIndex ?
- function(array, callback, scope) {
- return array.findIndex(callback, scope);
- } :
- function(array, callback, scope) {
- scope = scope === undefined ? array : scope;
- for (var i = 0, ilen = array.length; i < ilen; ++i) {
- if (callback.call(scope, array[i], i, array)) {
- return i;
- }
- }
- return -1;
- };
- helpers$1.findNextWhere = function(arrayToSearch, filterCallback, startIndex) {
- // Default to start of the array
- if (helpers$1.isNullOrUndef(startIndex)) {
- startIndex = -1;
- }
- for (var i = startIndex + 1; i < arrayToSearch.length; i++) {
- var currentItem = arrayToSearch[i];
- if (filterCallback(currentItem)) {
- return currentItem;
- }
- }
- };
- helpers$1.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex) {
- // Default to end of the array
- if (helpers$1.isNullOrUndef(startIndex)) {
- startIndex = arrayToSearch.length;
- }
- for (var i = startIndex - 1; i >= 0; i--) {
- var currentItem = arrayToSearch[i];
- if (filterCallback(currentItem)) {
- return currentItem;
- }
- }
- };
-
- // -- Math methods
- helpers$1.isNumber = function(n) {
- return !isNaN(parseFloat(n)) && isFinite(n);
- };
- helpers$1.almostEquals = function(x, y, epsilon) {
- return Math.abs(x - y) < epsilon;
- };
- helpers$1.almostWhole = function(x, epsilon) {
- var rounded = Math.round(x);
- return ((rounded - epsilon) <= x) && ((rounded + epsilon) >= x);
- };
- helpers$1.max = function(array) {
- return array.reduce(function(max, value) {
- if (!isNaN(value)) {
- return Math.max(max, value);
- }
- return max;
- }, Number.NEGATIVE_INFINITY);
- };
- helpers$1.min = function(array) {
- return array.reduce(function(min, value) {
- if (!isNaN(value)) {
- return Math.min(min, value);
- }
- return min;
- }, Number.POSITIVE_INFINITY);
- };
- helpers$1.sign = Math.sign ?
- function(x) {
- return Math.sign(x);
- } :
- function(x) {
- x = +x; // convert to a number
- if (x === 0 || isNaN(x)) {
- return x;
- }
- return x > 0 ? 1 : -1;
- };
- helpers$1.toRadians = function(degrees) {
- return degrees * (Math.PI / 180);
- };
- helpers$1.toDegrees = function(radians) {
- return radians * (180 / Math.PI);
- };
-
- /**
- * Returns the number of decimal places
- * i.e. the number of digits after the decimal point, of the value of this Number.
- * @param {number} x - A number.
- * @returns {number} The number of decimal places.
- * @private
- */
- helpers$1._decimalPlaces = function(x) {
- if (!helpers$1.isFinite(x)) {
- return;
- }
- var e = 1;
- var p = 0;
- while (Math.round(x * e) / e !== x) {
- e *= 10;
- p++;
- }
- return p;
- };
-
- // Gets the angle from vertical upright to the point about a centre.
- helpers$1.getAngleFromPoint = function(centrePoint, anglePoint) {
- var distanceFromXCenter = anglePoint.x - centrePoint.x;
- var distanceFromYCenter = anglePoint.y - centrePoint.y;
- var radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);
-
- var angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);
-
- if (angle < (-0.5 * Math.PI)) {
- angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2]
- }
-
- return {
- angle: angle,
- distance: radialDistanceFromCenter
- };
- };
- helpers$1.distanceBetweenPoints = function(pt1, pt2) {
- return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));
- };
-
- /**
- * Provided for backward compatibility, not available anymore
- * @function Chart.helpers.aliasPixel
- * @deprecated since version 2.8.0
- * @todo remove at version 3
- */
- helpers$1.aliasPixel = function(pixelWidth) {
- return (pixelWidth % 2 === 0) ? 0 : 0.5;
- };
-
- /**
- * Returns the aligned pixel value to avoid anti-aliasing blur
- * @param {Chart} chart - The chart instance.
- * @param {number} pixel - A pixel value.
- * @param {number} width - The width of the element.
- * @returns {number} The aligned pixel value.
- * @private
- */
- helpers$1._alignPixel = function(chart, pixel, width) {
- var devicePixelRatio = chart.currentDevicePixelRatio;
- var halfWidth = width / 2;
- return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth;
- };
-
- helpers$1.splineCurve = function(firstPoint, middlePoint, afterPoint, t) {
- // Props to Rob Spencer at scaled innovation for his post on splining between points
- // http://scaledinnovation.com/analytics/splines/aboutSplines.html
-
- // This function must also respect "skipped" points
-
- var previous = firstPoint.skip ? middlePoint : firstPoint;
- var current = middlePoint;
- var next = afterPoint.skip ? middlePoint : afterPoint;
-
- var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2));
- var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2));
-
- var s01 = d01 / (d01 + d12);
- var s12 = d12 / (d01 + d12);
-
- // If all points are the same, s01 & s02 will be inf
- s01 = isNaN(s01) ? 0 : s01;
- s12 = isNaN(s12) ? 0 : s12;
-
- var fa = t * s01; // scaling factor for triangle Ta
- var fb = t * s12;
-
- return {
- previous: {
- x: current.x - fa * (next.x - previous.x),
- y: current.y - fa * (next.y - previous.y)
- },
- next: {
- x: current.x + fb * (next.x - previous.x),
- y: current.y + fb * (next.y - previous.y)
- }
- };
- };
- helpers$1.EPSILON = Number.EPSILON || 1e-14;
- helpers$1.splineCurveMonotone = function(points) {
- // This function calculates Bézier control points in a similar way than |splineCurve|,
- // but preserves monotonicity of the provided data and ensures no local extremums are added
- // between the dataset discrete points due to the interpolation.
- // See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation
-
- var pointsWithTangents = (points || []).map(function(point) {
- return {
- model: point._model,
- deltaK: 0,
- mK: 0
- };
- });
-
- // Calculate slopes (deltaK) and initialize tangents (mK)
- var pointsLen = pointsWithTangents.length;
- var i, pointBefore, pointCurrent, pointAfter;
- for (i = 0; i < pointsLen; ++i) {
- pointCurrent = pointsWithTangents[i];
- if (pointCurrent.model.skip) {
- continue;
- }
-
- pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
- pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
- if (pointAfter && !pointAfter.model.skip) {
- var slopeDeltaX = (pointAfter.model.x - pointCurrent.model.x);
-
- // In the case of two points that appear at the same x pixel, slopeDeltaX is 0
- pointCurrent.deltaK = slopeDeltaX !== 0 ? (pointAfter.model.y - pointCurrent.model.y) / slopeDeltaX : 0;
- }
-
- if (!pointBefore || pointBefore.model.skip) {
- pointCurrent.mK = pointCurrent.deltaK;
- } else if (!pointAfter || pointAfter.model.skip) {
- pointCurrent.mK = pointBefore.deltaK;
- } else if (this.sign(pointBefore.deltaK) !== this.sign(pointCurrent.deltaK)) {
- pointCurrent.mK = 0;
- } else {
- pointCurrent.mK = (pointBefore.deltaK + pointCurrent.deltaK) / 2;
- }
- }
-
- // Adjust tangents to ensure monotonic properties
- var alphaK, betaK, tauK, squaredMagnitude;
- for (i = 0; i < pointsLen - 1; ++i) {
- pointCurrent = pointsWithTangents[i];
- pointAfter = pointsWithTangents[i + 1];
- if (pointCurrent.model.skip || pointAfter.model.skip) {
- continue;
- }
-
- if (helpers$1.almostEquals(pointCurrent.deltaK, 0, this.EPSILON)) {
- pointCurrent.mK = pointAfter.mK = 0;
- continue;
- }
-
- alphaK = pointCurrent.mK / pointCurrent.deltaK;
- betaK = pointAfter.mK / pointCurrent.deltaK;
- squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);
- if (squaredMagnitude <= 9) {
- continue;
- }
-
- tauK = 3 / Math.sqrt(squaredMagnitude);
- pointCurrent.mK = alphaK * tauK * pointCurrent.deltaK;
- pointAfter.mK = betaK * tauK * pointCurrent.deltaK;
- }
-
- // Compute control points
- var deltaX;
- for (i = 0; i < pointsLen; ++i) {
- pointCurrent = pointsWithTangents[i];
- if (pointCurrent.model.skip) {
- continue;
- }
-
- pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
- pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
- if (pointBefore && !pointBefore.model.skip) {
- deltaX = (pointCurrent.model.x - pointBefore.model.x) / 3;
- pointCurrent.model.controlPointPreviousX = pointCurrent.model.x - deltaX;
- pointCurrent.model.controlPointPreviousY = pointCurrent.model.y - deltaX * pointCurrent.mK;
- }
- if (pointAfter && !pointAfter.model.skip) {
- deltaX = (pointAfter.model.x - pointCurrent.model.x) / 3;
- pointCurrent.model.controlPointNextX = pointCurrent.model.x + deltaX;
- pointCurrent.model.controlPointNextY = pointCurrent.model.y + deltaX * pointCurrent.mK;
- }
- }
- };
- helpers$1.nextItem = function(collection, index, loop) {
- if (loop) {
- return index >= collection.length - 1 ? collection[0] : collection[index + 1];
- }
- return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1];
- };
- helpers$1.previousItem = function(collection, index, loop) {
- if (loop) {
- return index <= 0 ? collection[collection.length - 1] : collection[index - 1];
- }
- return index <= 0 ? collection[0] : collection[index - 1];
- };
- // Implementation of the nice number algorithm used in determining where axis labels will go
- helpers$1.niceNum = function(range, round) {
- var exponent = Math.floor(helpers$1.log10(range));
- var fraction = range / Math.pow(10, exponent);
- var niceFraction;
-
- if (round) {
- if (fraction < 1.5) {
- niceFraction = 1;
- } else if (fraction < 3) {
- niceFraction = 2;
- } else if (fraction < 7) {
- niceFraction = 5;
- } else {
- niceFraction = 10;
- }
- } else if (fraction <= 1.0) {
- niceFraction = 1;
- } else if (fraction <= 2) {
- niceFraction = 2;
- } else if (fraction <= 5) {
- niceFraction = 5;
- } else {
- niceFraction = 10;
- }
-
- return niceFraction * Math.pow(10, exponent);
- };
- // Request animation polyfill - https://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
- helpers$1.requestAnimFrame = (function() {
- if (typeof window === 'undefined') {
- return function(callback) {
- callback();
- };
- }
- return window.requestAnimationFrame ||
- window.webkitRequestAnimationFrame ||
- window.mozRequestAnimationFrame ||
- window.oRequestAnimationFrame ||
- window.msRequestAnimationFrame ||
- function(callback) {
- return window.setTimeout(callback, 1000 / 60);
- };
- }());
- // -- DOM methods
- helpers$1.getRelativePosition = function(evt, chart) {
- var mouseX, mouseY;
- var e = evt.originalEvent || evt;
- var canvas = evt.target || evt.srcElement;
- var boundingRect = canvas.getBoundingClientRect();
-
- var touches = e.touches;
- if (touches && touches.length > 0) {
- mouseX = touches[0].clientX;
- mouseY = touches[0].clientY;
-
- } else {
- mouseX = e.clientX;
- mouseY = e.clientY;
- }
-
- // Scale mouse coordinates into canvas coordinates
- // by following the pattern laid out by 'jerryj' in the comments of
- // https://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/
- var paddingLeft = parseFloat(helpers$1.getStyle(canvas, 'padding-left'));
- var paddingTop = parseFloat(helpers$1.getStyle(canvas, 'padding-top'));
- var paddingRight = parseFloat(helpers$1.getStyle(canvas, 'padding-right'));
- var paddingBottom = parseFloat(helpers$1.getStyle(canvas, 'padding-bottom'));
- var width = boundingRect.right - boundingRect.left - paddingLeft - paddingRight;
- var height = boundingRect.bottom - boundingRect.top - paddingTop - paddingBottom;
-
- // We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However
- // the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here
- mouseX = Math.round((mouseX - boundingRect.left - paddingLeft) / (width) * canvas.width / chart.currentDevicePixelRatio);
- mouseY = Math.round((mouseY - boundingRect.top - paddingTop) / (height) * canvas.height / chart.currentDevicePixelRatio);
-
- return {
- x: mouseX,
- y: mouseY
- };
-
- };
-
- // Private helper function to convert max-width/max-height values that may be percentages into a number
- function parseMaxStyle(styleValue, node, parentProperty) {
- var valueInPixels;
- if (typeof styleValue === 'string') {
- valueInPixels = parseInt(styleValue, 10);
-
- if (styleValue.indexOf('%') !== -1) {
- // percentage * size in dimension
- valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];
- }
- } else {
- valueInPixels = styleValue;
- }
-
- return valueInPixels;
- }
-
- /**
- * Returns if the given value contains an effective constraint.
- * @private
- */
- function isConstrainedValue(value) {
- return value !== undefined && value !== null && value !== 'none';
- }
-
- /**
- * Returns the max width or height of the given DOM node in a cross-browser compatible fashion
- * @param {HTMLElement} domNode - the node to check the constraint on
- * @param {string} maxStyle - the style that defines the maximum for the direction we are using ('max-width' / 'max-height')
- * @param {string} percentageProperty - property of parent to use when calculating width as a percentage
- * @see {@link https://www.nathanaeljones.com/blog/2013/reading-max-width-cross-browser}
- */
- function getConstraintDimension(domNode, maxStyle, percentageProperty) {
- var view = document.defaultView;
- var parentNode = helpers$1._getParentNode(domNode);
- var constrainedNode = view.getComputedStyle(domNode)[maxStyle];
- var constrainedContainer = view.getComputedStyle(parentNode)[maxStyle];
- var hasCNode = isConstrainedValue(constrainedNode);
- var hasCContainer = isConstrainedValue(constrainedContainer);
- var infinity = Number.POSITIVE_INFINITY;
-
- if (hasCNode || hasCContainer) {
- return Math.min(
- hasCNode ? parseMaxStyle(constrainedNode, domNode, percentageProperty) : infinity,
- hasCContainer ? parseMaxStyle(constrainedContainer, parentNode, percentageProperty) : infinity);
- }
-
- return 'none';
- }
- // returns Number or undefined if no constraint
- helpers$1.getConstraintWidth = function(domNode) {
- return getConstraintDimension(domNode, 'max-width', 'clientWidth');
- };
- // returns Number or undefined if no constraint
- helpers$1.getConstraintHeight = function(domNode) {
- return getConstraintDimension(domNode, 'max-height', 'clientHeight');
- };
- /**
- * @private
- */
- helpers$1._calculatePadding = function(container, padding, parentDimension) {
- padding = helpers$1.getStyle(container, padding);
-
- return padding.indexOf('%') > -1 ? parentDimension * parseInt(padding, 10) / 100 : parseInt(padding, 10);
- };
- /**
- * @private
- */
- helpers$1._getParentNode = function(domNode) {
- var parent = domNode.parentNode;
- if (parent && parent.toString() === '[object ShadowRoot]') {
- parent = parent.host;
- }
- return parent;
- };
- helpers$1.getMaximumWidth = function(domNode) {
- var container = helpers$1._getParentNode(domNode);
- if (!container) {
- return domNode.clientWidth;
- }
-
- var clientWidth = container.clientWidth;
- var paddingLeft = helpers$1._calculatePadding(container, 'padding-left', clientWidth);
- var paddingRight = helpers$1._calculatePadding(container, 'padding-right', clientWidth);
-
- var w = clientWidth - paddingLeft - paddingRight;
- var cw = helpers$1.getConstraintWidth(domNode);
- return isNaN(cw) ? w : Math.min(w, cw);
- };
- helpers$1.getMaximumHeight = function(domNode) {
- var container = helpers$1._getParentNode(domNode);
- if (!container) {
- return domNode.clientHeight;
- }
-
- var clientHeight = container.clientHeight;
- var paddingTop = helpers$1._calculatePadding(container, 'padding-top', clientHeight);
- var paddingBottom = helpers$1._calculatePadding(container, 'padding-bottom', clientHeight);
-
- var h = clientHeight - paddingTop - paddingBottom;
- var ch = helpers$1.getConstraintHeight(domNode);
- return isNaN(ch) ? h : Math.min(h, ch);
- };
- helpers$1.getStyle = function(el, property) {
- return el.currentStyle ?
- el.currentStyle[property] :
- document.defaultView.getComputedStyle(el, null).getPropertyValue(property);
- };
- helpers$1.retinaScale = function(chart, forceRatio) {
- var pixelRatio = chart.currentDevicePixelRatio = forceRatio || (typeof window !== 'undefined' && window.devicePixelRatio) || 1;
- if (pixelRatio === 1) {
- return;
- }
-
- var canvas = chart.canvas;
- var height = chart.height;
- var width = chart.width;
-
- canvas.height = height * pixelRatio;
- canvas.width = width * pixelRatio;
- chart.ctx.scale(pixelRatio, pixelRatio);
-
- // If no style has been set on the canvas, the render size is used as display size,
- // making the chart visually bigger, so let's enforce it to the "correct" values.
- // See https://github.com/chartjs/Chart.js/issues/3575
- if (!canvas.style.height && !canvas.style.width) {
- canvas.style.height = height + 'px';
- canvas.style.width = width + 'px';
- }
- };
- // -- Canvas methods
- helpers$1.fontString = function(pixelSize, fontStyle, fontFamily) {
- return fontStyle + ' ' + pixelSize + 'px ' + fontFamily;
- };
- helpers$1.longestText = function(ctx, font, arrayOfThings, cache) {
- cache = cache || {};
- var data = cache.data = cache.data || {};
- var gc = cache.garbageCollect = cache.garbageCollect || [];
-
- if (cache.font !== font) {
- data = cache.data = {};
- gc = cache.garbageCollect = [];
- cache.font = font;
- }
-
- ctx.font = font;
- var longest = 0;
- var ilen = arrayOfThings.length;
- var i, j, jlen, thing, nestedThing;
- for (i = 0; i < ilen; i++) {
- thing = arrayOfThings[i];
-
- // Undefined strings and arrays should not be measured
- if (thing !== undefined && thing !== null && helpers$1.isArray(thing) !== true) {
- longest = helpers$1.measureText(ctx, data, gc, longest, thing);
- } else if (helpers$1.isArray(thing)) {
- // if it is an array lets measure each element
- // to do maybe simplify this function a bit so we can do this more recursively?
- for (j = 0, jlen = thing.length; j < jlen; j++) {
- nestedThing = thing[j];
- // Undefined strings and arrays should not be measured
- if (nestedThing !== undefined && nestedThing !== null && !helpers$1.isArray(nestedThing)) {
- longest = helpers$1.measureText(ctx, data, gc, longest, nestedThing);
- }
- }
- }
- }
-
- var gcLen = gc.length / 2;
- if (gcLen > arrayOfThings.length) {
- for (i = 0; i < gcLen; i++) {
- delete data[gc[i]];
- }
- gc.splice(0, gcLen);
- }
- return longest;
- };
- helpers$1.measureText = function(ctx, data, gc, longest, string) {
- var textWidth = data[string];
- if (!textWidth) {
- textWidth = data[string] = ctx.measureText(string).width;
- gc.push(string);
- }
- if (textWidth > longest) {
- longest = textWidth;
- }
- return longest;
- };
-
- /**
- * @deprecated
- */
- helpers$1.numberOfLabelLines = function(arrayOfThings) {
- var numberOfLines = 1;
- helpers$1.each(arrayOfThings, function(thing) {
- if (helpers$1.isArray(thing)) {
- if (thing.length > numberOfLines) {
- numberOfLines = thing.length;
- }
- }
- });
- return numberOfLines;
- };
-
- helpers$1.color = !chartjsColor ?
- function(value) {
- console.error('Color.js not found!');
- return value;
- } :
- function(value) {
- /* global CanvasGradient */
- if (value instanceof CanvasGradient) {
- value = core_defaults.global.defaultColor;
- }
-
- return chartjsColor(value);
- };
-
- helpers$1.getHoverColor = function(colorValue) {
- /* global CanvasPattern */
- return (colorValue instanceof CanvasPattern || colorValue instanceof CanvasGradient) ?
- colorValue :
- helpers$1.color(colorValue).saturate(0.5).darken(0.1).rgbString();
- };
-};
-
-function abstract() {
- throw new Error(
- 'This method is not implemented: either no adapter can ' +
- 'be found or an incomplete integration was provided.'
- );
-}
-
-/**
- * Date adapter (current used by the time scale)
- * @namespace Chart._adapters._date
- * @memberof Chart._adapters
- * @private
- */
-
-/**
- * Currently supported unit string values.
- * @typedef {('millisecond'|'second'|'minute'|'hour'|'day'|'week'|'month'|'quarter'|'year')}
- * @memberof Chart._adapters._date
- * @name Unit
- */
-
-/**
- * @class
- */
-function DateAdapter(options) {
- this.options = options || {};
-}
-
-helpers$1.extend(DateAdapter.prototype, /** @lends DateAdapter */ {
- /**
- * Returns a map of time formats for the supported formatting units defined
- * in Unit as well as 'datetime' representing a detailed date/time string.
- * @returns {{string: string}}
- */
- formats: abstract,
-
- /**
- * Parses the given `value` and return the associated timestamp.
- * @param {any} value - the value to parse (usually comes from the data)
- * @param {string} [format] - the expected data format
- * @returns {(number|null)}
- * @function
- */
- parse: abstract,
-
- /**
- * Returns the formatted date in the specified `format` for a given `timestamp`.
- * @param {number} timestamp - the timestamp to format
- * @param {string} format - the date/time token
- * @return {string}
- * @function
- */
- format: abstract,
-
- /**
- * Adds the specified `amount` of `unit` to the given `timestamp`.
- * @param {number} timestamp - the input timestamp
- * @param {number} amount - the amount to add
- * @param {Unit} unit - the unit as string
- * @return {number}
- * @function
- */
- add: abstract,
-
- /**
- * Returns the number of `unit` between the given timestamps.
- * @param {number} max - the input timestamp (reference)
- * @param {number} min - the timestamp to substract
- * @param {Unit} unit - the unit as string
- * @return {number}
- * @function
- */
- diff: abstract,
-
- /**
- * Returns start of `unit` for the given `timestamp`.
- * @param {number} timestamp - the input timestamp
- * @param {Unit} unit - the unit as string
- * @param {number} [weekday] - the ISO day of the week with 1 being Monday
- * and 7 being Sunday (only needed if param *unit* is `isoWeek`).
- * @function
- */
- startOf: abstract,
-
- /**
- * Returns end of `unit` for the given `timestamp`.
- * @param {number} timestamp - the input timestamp
- * @param {Unit} unit - the unit as string
- * @function
- */
- endOf: abstract,
-
- // DEPRECATIONS
-
- /**
- * Provided for backward compatibility for scale.getValueForPixel(),
- * this method should be overridden only by the moment adapter.
- * @deprecated since version 2.8.0
- * @todo remove at version 3
- * @private
- */
- _create: function(value) {
- return value;
- }
-});
-
-DateAdapter.override = function(members) {
- helpers$1.extend(DateAdapter.prototype, members);
-};
-
-var _date = DateAdapter;
-
-var core_adapters = {
- _date: _date
-};
-
-/**
- * Namespace to hold static tick generation functions
- * @namespace Chart.Ticks
- */
-var core_ticks = {
- /**
- * Namespace to hold formatters for different types of ticks
- * @namespace Chart.Ticks.formatters
- */
- formatters: {
- /**
- * Formatter for value labels
- * @method Chart.Ticks.formatters.values
- * @param value the value to display
- * @return {string|string[]} the label to display
- */
- values: function(value) {
- return helpers$1.isArray(value) ? value : '' + value;
- },
-
- /**
- * Formatter for linear numeric ticks
- * @method Chart.Ticks.formatters.linear
- * @param tickValue {number} the value to be formatted
- * @param index {number} the position of the tickValue parameter in the ticks array
- * @param ticks {number[]} the list of ticks being converted
- * @return {string} string representation of the tickValue parameter
- */
- linear: function(tickValue, index, ticks) {
- // If we have lots of ticks, don't use the ones
- var delta = ticks.length > 3 ? ticks[2] - ticks[1] : ticks[1] - ticks[0];
-
- // If we have a number like 2.5 as the delta, figure out how many decimal places we need
- if (Math.abs(delta) > 1) {
- if (tickValue !== Math.floor(tickValue)) {
- // not an integer
- delta = tickValue - Math.floor(tickValue);
- }
- }
-
- var logDelta = helpers$1.log10(Math.abs(delta));
- var tickString = '';
-
- if (tickValue !== 0) {
- var maxTick = Math.max(Math.abs(ticks[0]), Math.abs(ticks[ticks.length - 1]));
- if (maxTick < 1e-4) { // all ticks are small numbers; use scientific notation
- var logTick = helpers$1.log10(Math.abs(tickValue));
- var numExponential = Math.floor(logTick) - Math.floor(logDelta);
- numExponential = Math.max(Math.min(numExponential, 20), 0);
- tickString = tickValue.toExponential(numExponential);
- } else {
- var numDecimal = -1 * Math.floor(logDelta);
- numDecimal = Math.max(Math.min(numDecimal, 20), 0); // toFixed has a max of 20 decimal places
- tickString = tickValue.toFixed(numDecimal);
- }
- } else {
- tickString = '0'; // never show decimal places for 0
- }
-
- return tickString;
- },
-
- logarithmic: function(tickValue, index, ticks) {
- var remain = tickValue / (Math.pow(10, Math.floor(helpers$1.log10(tickValue))));
-
- if (tickValue === 0) {
- return '0';
- } else if (remain === 1 || remain === 2 || remain === 5 || index === 0 || index === ticks.length - 1) {
- return tickValue.toExponential();
- }
- return '';
- }
- }
-};
-
-var isArray = helpers$1.isArray;
-var isNullOrUndef = helpers$1.isNullOrUndef;
-var valueOrDefault$a = helpers$1.valueOrDefault;
-var valueAtIndexOrDefault = helpers$1.valueAtIndexOrDefault;
-
-core_defaults._set('scale', {
- display: true,
- position: 'left',
- offset: false,
-
- // grid line settings
- gridLines: {
- display: true,
- color: 'rgba(0,0,0,0.1)',
- lineWidth: 1,
- drawBorder: true,
- drawOnChartArea: true,
- drawTicks: true,
- tickMarkLength: 10,
- zeroLineWidth: 1,
- zeroLineColor: 'rgba(0,0,0,0.25)',
- zeroLineBorderDash: [],
- zeroLineBorderDashOffset: 0.0,
- offsetGridLines: false,
- borderDash: [],
- borderDashOffset: 0.0
- },
-
- // scale label
- scaleLabel: {
- // display property
- display: false,
-
- // actual label
- labelString: '',
-
- // top/bottom padding
- padding: {
- top: 4,
- bottom: 4
- }
- },
-
- // label settings
- ticks: {
- beginAtZero: false,
- minRotation: 0,
- maxRotation: 50,
- mirror: false,
- padding: 0,
- reverse: false,
- display: true,
- autoSkip: true,
- autoSkipPadding: 0,
- labelOffset: 0,
- // We pass through arrays to be rendered as multiline labels, we convert Others to strings here.
- callback: core_ticks.formatters.values,
- minor: {},
- major: {}
- }
-});
-
-/** Returns a new array containing numItems from arr */
-function sample(arr, numItems) {
- var result = [];
- var increment = arr.length / numItems;
- var i = 0;
- var len = arr.length;
-
- for (; i < len; i += increment) {
- result.push(arr[Math.floor(i)]);
- }
- return result;
-}
-
-function getPixelForGridLine(scale, index, offsetGridLines) {
- var length = scale.getTicks().length;
- var validIndex = Math.min(index, length - 1);
- var lineValue = scale.getPixelForTick(validIndex);
- var start = scale._startPixel;
- var end = scale._endPixel;
- var epsilon = 1e-6; // 1e-6 is margin in pixels for accumulated error.
- var offset;
-
- if (offsetGridLines) {
- if (length === 1) {
- offset = Math.max(lineValue - start, end - lineValue);
- } else if (index === 0) {
- offset = (scale.getPixelForTick(1) - lineValue) / 2;
- } else {
- offset = (lineValue - scale.getPixelForTick(validIndex - 1)) / 2;
- }
- lineValue += validIndex < index ? offset : -offset;
-
- // Return undefined if the pixel is out of the range
- if (lineValue < start - epsilon || lineValue > end + epsilon) {
- return;
- }
- }
- return lineValue;
-}
-
-function garbageCollect(caches, length) {
- helpers$1.each(caches, function(cache) {
- var gc = cache.gc;
- var gcLen = gc.length / 2;
- var i;
- if (gcLen > length) {
- for (i = 0; i < gcLen; ++i) {
- delete cache.data[gc[i]];
- }
- gc.splice(0, gcLen);
- }
- });
-}
-
-/**
- * Returns {width, height, offset} objects for the first, last, widest, highest tick
- * labels where offset indicates the anchor point offset from the top in pixels.
- */
-function computeLabelSizes(ctx, tickFonts, ticks, caches) {
- var length = ticks.length;
- var widths = [];
- var heights = [];
- var offsets = [];
- var i, j, jlen, label, tickFont, fontString, cache, lineHeight, width, height, nestedLabel, widest, highest;
-
- for (i = 0; i < length; ++i) {
- label = ticks[i].label;
- tickFont = ticks[i].major ? tickFonts.major : tickFonts.minor;
- ctx.font = fontString = tickFont.string;
- cache = caches[fontString] = caches[fontString] || {data: {}, gc: []};
- lineHeight = tickFont.lineHeight;
- width = height = 0;
- // Undefined labels and arrays should not be measured
- if (!isNullOrUndef(label) && !isArray(label)) {
- width = helpers$1.measureText(ctx, cache.data, cache.gc, width, label);
- height = lineHeight;
- } else if (isArray(label)) {
- // if it is an array let's measure each element
- for (j = 0, jlen = label.length; j < jlen; ++j) {
- nestedLabel = label[j];
- // Undefined labels and arrays should not be measured
- if (!isNullOrUndef(nestedLabel) && !isArray(nestedLabel)) {
- width = helpers$1.measureText(ctx, cache.data, cache.gc, width, nestedLabel);
- height += lineHeight;
- }
- }
- }
- widths.push(width);
- heights.push(height);
- offsets.push(lineHeight / 2);
- }
- garbageCollect(caches, length);
-
- widest = widths.indexOf(Math.max.apply(null, widths));
- highest = heights.indexOf(Math.max.apply(null, heights));
-
- function valueAt(idx) {
- return {
- width: widths[idx] || 0,
- height: heights[idx] || 0,
- offset: offsets[idx] || 0
- };
- }
-
- return {
- first: valueAt(0),
- last: valueAt(length - 1),
- widest: valueAt(widest),
- highest: valueAt(highest)
- };
-}
-
-function getTickMarkLength(options) {
- return options.drawTicks ? options.tickMarkLength : 0;
-}
-
-function getScaleLabelHeight(options) {
- var font, padding;
-
- if (!options.display) {
- return 0;
- }
-
- font = helpers$1.options._parseFont(options);
- padding = helpers$1.options.toPadding(options.padding);
-
- return font.lineHeight + padding.height;
-}
-
-function parseFontOptions(options, nestedOpts) {
- return helpers$1.extend(helpers$1.options._parseFont({
- fontFamily: valueOrDefault$a(nestedOpts.fontFamily, options.fontFamily),
- fontSize: valueOrDefault$a(nestedOpts.fontSize, options.fontSize),
- fontStyle: valueOrDefault$a(nestedOpts.fontStyle, options.fontStyle),
- lineHeight: valueOrDefault$a(nestedOpts.lineHeight, options.lineHeight)
- }), {
- color: helpers$1.options.resolve([nestedOpts.fontColor, options.fontColor, core_defaults.global.defaultFontColor])
- });
-}
-
-function parseTickFontOptions(options) {
- var minor = parseFontOptions(options, options.minor);
- var major = options.major.enabled ? parseFontOptions(options, options.major) : minor;
-
- return {minor: minor, major: major};
-}
-
-function nonSkipped(ticksToFilter) {
- var filtered = [];
- var item, index, len;
- for (index = 0, len = ticksToFilter.length; index < len; ++index) {
- item = ticksToFilter[index];
- if (typeof item._index !== 'undefined') {
- filtered.push(item);
- }
- }
- return filtered;
-}
-
-function getEvenSpacing(arr) {
- var len = arr.length;
- var i, diff;
-
- if (len < 2) {
- return false;
- }
-
- for (diff = arr[0], i = 1; i < len; ++i) {
- if (arr[i] - arr[i - 1] !== diff) {
- return false;
- }
- }
- return diff;
-}
-
-function calculateSpacing(majorIndices, ticks, axisLength, ticksLimit) {
- var evenMajorSpacing = getEvenSpacing(majorIndices);
- var spacing = (ticks.length - 1) / ticksLimit;
- var factors, factor, i, ilen;
-
- // If the major ticks are evenly spaced apart, place the minor ticks
- // so that they divide the major ticks into even chunks
- if (!evenMajorSpacing) {
- return Math.max(spacing, 1);
- }
-
- factors = helpers$1.math._factorize(evenMajorSpacing);
- for (i = 0, ilen = factors.length - 1; i < ilen; i++) {
- factor = factors[i];
- if (factor > spacing) {
- return factor;
- }
- }
- return Math.max(spacing, 1);
-}
-
-function getMajorIndices(ticks) {
- var result = [];
- var i, ilen;
- for (i = 0, ilen = ticks.length; i < ilen; i++) {
- if (ticks[i].major) {
- result.push(i);
- }
- }
- return result;
-}
-
-function skipMajors(ticks, majorIndices, spacing) {
- var count = 0;
- var next = majorIndices[0];
- var i, tick;
-
- spacing = Math.ceil(spacing);
- for (i = 0; i < ticks.length; i++) {
- tick = ticks[i];
- if (i === next) {
- tick._index = i;
- count++;
- next = majorIndices[count * spacing];
- } else {
- delete tick.label;
- }
- }
-}
-
-function skip(ticks, spacing, majorStart, majorEnd) {
- var start = valueOrDefault$a(majorStart, 0);
- var end = Math.min(valueOrDefault$a(majorEnd, ticks.length), ticks.length);
- var count = 0;
- var length, i, tick, next;
-
- spacing = Math.ceil(spacing);
- if (majorEnd) {
- length = majorEnd - majorStart;
- spacing = length / Math.floor(length / spacing);
- }
-
- next = start;
-
- while (next < 0) {
- count++;
- next = Math.round(start + count * spacing);
- }
-
- for (i = Math.max(start, 0); i < end; i++) {
- tick = ticks[i];
- if (i === next) {
- tick._index = i;
- count++;
- next = Math.round(start + count * spacing);
- } else {
- delete tick.label;
- }
- }
-}
-
-var Scale = core_element.extend({
-
- zeroLineIndex: 0,
-
- /**
- * Get the padding needed for the scale
- * @method getPadding
- * @private
- * @returns {Padding} the necessary padding
- */
- getPadding: function() {
- var me = this;
- return {
- left: me.paddingLeft || 0,
- top: me.paddingTop || 0,
- right: me.paddingRight || 0,
- bottom: me.paddingBottom || 0
- };
- },
-
- /**
- * Returns the scale tick objects ({label, major})
- * @since 2.7
- */
- getTicks: function() {
- return this._ticks;
- },
-
- /**
- * @private
- */
- _getLabels: function() {
- var data = this.chart.data;
- return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels || [];
- },
-
- // These methods are ordered by lifecyle. Utilities then follow.
- // Any function defined here is inherited by all scale types.
- // Any function can be extended by the scale type
-
- /**
- * Provided for backward compatibility, not available anymore
- * @function Chart.Scale.mergeTicksOptions
- * @deprecated since version 2.8.0
- * @todo remove at version 3
- */
- mergeTicksOptions: function() {
- // noop
- },
-
- beforeUpdate: function() {
- helpers$1.callback(this.options.beforeUpdate, [this]);
- },
-
- /**
- * @param {number} maxWidth - the max width in pixels
- * @param {number} maxHeight - the max height in pixels
- * @param {object} margins - the space between the edge of the other scales and edge of the chart
- * This space comes from two sources:
- * - padding - space that's required to show the labels at the edges of the scale
- * - thickness of scales or legends in another orientation
- */
- update: function(maxWidth, maxHeight, margins) {
- var me = this;
- var tickOpts = me.options.ticks;
- var sampleSize = tickOpts.sampleSize;
- var i, ilen, labels, ticks, samplingEnabled;
-
- // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
- me.beforeUpdate();
-
- // Absorb the master measurements
- me.maxWidth = maxWidth;
- me.maxHeight = maxHeight;
- me.margins = helpers$1.extend({
- left: 0,
- right: 0,
- top: 0,
- bottom: 0
- }, margins);
-
- me._ticks = null;
- me.ticks = null;
- me._labelSizes = null;
- me._maxLabelLines = 0;
- me.longestLabelWidth = 0;
- me.longestTextCache = me.longestTextCache || {};
- me._gridLineItems = null;
- me._labelItems = null;
-
- // Dimensions
- me.beforeSetDimensions();
- me.setDimensions();
- me.afterSetDimensions();
-
- // Data min/max
- me.beforeDataLimits();
- me.determineDataLimits();
- me.afterDataLimits();
-
- // Ticks - `this.ticks` is now DEPRECATED!
- // Internal ticks are now stored as objects in the PRIVATE `this._ticks` member
- // and must not be accessed directly from outside this class. `this.ticks` being
- // around for long time and not marked as private, we can't change its structure
- // without unexpected breaking changes. If you need to access the scale ticks,
- // use scale.getTicks() instead.
-
- me.beforeBuildTicks();
-
- // New implementations should return an array of objects but for BACKWARD COMPAT,
- // we still support no return (`this.ticks` internally set by calling this method).
- ticks = me.buildTicks() || [];
-
- // Allow modification of ticks in callback.
- ticks = me.afterBuildTicks(ticks) || ticks;
-
- // Ensure ticks contains ticks in new tick format
- if ((!ticks || !ticks.length) && me.ticks) {
- ticks = [];
- for (i = 0, ilen = me.ticks.length; i < ilen; ++i) {
- ticks.push({
- value: me.ticks[i],
- major: false
- });
- }
- }
-
- me._ticks = ticks;
-
- // Compute tick rotation and fit using a sampled subset of labels
- // We generally don't need to compute the size of every single label for determining scale size
- samplingEnabled = sampleSize < ticks.length;
- labels = me._convertTicksToLabels(samplingEnabled ? sample(ticks, sampleSize) : ticks);
-
- // _configure is called twice, once here, once from core.controller.updateLayout.
- // Here we haven't been positioned yet, but dimensions are correct.
- // Variables set in _configure are needed for calculateTickRotation, and
- // it's ok that coordinates are not correct there, only dimensions matter.
- me._configure();
-
- // Tick Rotation
- me.beforeCalculateTickRotation();
- me.calculateTickRotation();
- me.afterCalculateTickRotation();
-
- me.beforeFit();
- me.fit();
- me.afterFit();
-
- // Auto-skip
- me._ticksToDraw = tickOpts.display && (tickOpts.autoSkip || tickOpts.source === 'auto') ? me._autoSkip(ticks) : ticks;
-
- if (samplingEnabled) {
- // Generate labels using all non-skipped ticks
- labels = me._convertTicksToLabels(me._ticksToDraw);
- }
-
- me.ticks = labels; // BACKWARD COMPATIBILITY
-
- // IMPORTANT: after this point, we consider that `this.ticks` will NEVER change!
-
- me.afterUpdate();
-
- // TODO(v3): remove minSize as a public property and return value from all layout boxes. It is unused
- // make maxWidth and maxHeight private
- return me.minSize;
- },
-
- /**
- * @private
- */
- _configure: function() {
- var me = this;
- var reversePixels = me.options.ticks.reverse;
- var startPixel, endPixel;
-
- if (me.isHorizontal()) {
- startPixel = me.left;
- endPixel = me.right;
- } else {
- startPixel = me.top;
- endPixel = me.bottom;
- // by default vertical scales are from bottom to top, so pixels are reversed
- reversePixels = !reversePixels;
- }
- me._startPixel = startPixel;
- me._endPixel = endPixel;
- me._reversePixels = reversePixels;
- me._length = endPixel - startPixel;
- },
-
- afterUpdate: function() {
- helpers$1.callback(this.options.afterUpdate, [this]);
- },
-
- //
-
- beforeSetDimensions: function() {
- helpers$1.callback(this.options.beforeSetDimensions, [this]);
- },
- setDimensions: function() {
- var me = this;
- // Set the unconstrained dimension before label rotation
- if (me.isHorizontal()) {
- // Reset position before calculating rotation
- me.width = me.maxWidth;
- me.left = 0;
- me.right = me.width;
- } else {
- me.height = me.maxHeight;
-
- // Reset position before calculating rotation
- me.top = 0;
- me.bottom = me.height;
- }
-
- // Reset padding
- me.paddingLeft = 0;
- me.paddingTop = 0;
- me.paddingRight = 0;
- me.paddingBottom = 0;
- },
- afterSetDimensions: function() {
- helpers$1.callback(this.options.afterSetDimensions, [this]);
- },
-
- // Data limits
- beforeDataLimits: function() {
- helpers$1.callback(this.options.beforeDataLimits, [this]);
- },
- determineDataLimits: helpers$1.noop,
- afterDataLimits: function() {
- helpers$1.callback(this.options.afterDataLimits, [this]);
- },
-
- //
- beforeBuildTicks: function() {
- helpers$1.callback(this.options.beforeBuildTicks, [this]);
- },
- buildTicks: helpers$1.noop,
- afterBuildTicks: function(ticks) {
- var me = this;
- // ticks is empty for old axis implementations here
- if (isArray(ticks) && ticks.length) {
- return helpers$1.callback(me.options.afterBuildTicks, [me, ticks]);
- }
- // Support old implementations (that modified `this.ticks` directly in buildTicks)
- me.ticks = helpers$1.callback(me.options.afterBuildTicks, [me, me.ticks]) || me.ticks;
- return ticks;
- },
-
- beforeTickToLabelConversion: function() {
- helpers$1.callback(this.options.beforeTickToLabelConversion, [this]);
- },
- convertTicksToLabels: function() {
- var me = this;
- // Convert ticks to strings
- var tickOpts = me.options.ticks;
- me.ticks = me.ticks.map(tickOpts.userCallback || tickOpts.callback, this);
- },
- afterTickToLabelConversion: function() {
- helpers$1.callback(this.options.afterTickToLabelConversion, [this]);
- },
-
- //
-
- beforeCalculateTickRotation: function() {
- helpers$1.callback(this.options.beforeCalculateTickRotation, [this]);
- },
- calculateTickRotation: function() {
- var me = this;
- var options = me.options;
- var tickOpts = options.ticks;
- var numTicks = me.getTicks().length;
- var minRotation = tickOpts.minRotation || 0;
- var maxRotation = tickOpts.maxRotation;
- var labelRotation = minRotation;
- var labelSizes, maxLabelWidth, maxLabelHeight, maxWidth, tickWidth, maxHeight, maxLabelDiagonal;
-
- if (!me._isVisible() || !tickOpts.display || minRotation >= maxRotation || numTicks <= 1 || !me.isHorizontal()) {
- me.labelRotation = minRotation;
- return;
- }
-
- labelSizes = me._getLabelSizes();
- maxLabelWidth = labelSizes.widest.width;
- maxLabelHeight = labelSizes.highest.height - labelSizes.highest.offset;
-
- // Estimate the width of each grid based on the canvas width, the maximum
- // label width and the number of tick intervals
- maxWidth = Math.min(me.maxWidth, me.chart.width - maxLabelWidth);
- tickWidth = options.offset ? me.maxWidth / numTicks : maxWidth / (numTicks - 1);
-
- // Allow 3 pixels x2 padding either side for label readability
- if (maxLabelWidth + 6 > tickWidth) {
- tickWidth = maxWidth / (numTicks - (options.offset ? 0.5 : 1));
- maxHeight = me.maxHeight - getTickMarkLength(options.gridLines)
- - tickOpts.padding - getScaleLabelHeight(options.scaleLabel);
- maxLabelDiagonal = Math.sqrt(maxLabelWidth * maxLabelWidth + maxLabelHeight * maxLabelHeight);
- labelRotation = helpers$1.toDegrees(Math.min(
- Math.asin(Math.min((labelSizes.highest.height + 6) / tickWidth, 1)),
- Math.asin(Math.min(maxHeight / maxLabelDiagonal, 1)) - Math.asin(maxLabelHeight / maxLabelDiagonal)
- ));
- labelRotation = Math.max(minRotation, Math.min(maxRotation, labelRotation));
- }
-
- me.labelRotation = labelRotation;
- },
- afterCalculateTickRotation: function() {
- helpers$1.callback(this.options.afterCalculateTickRotation, [this]);
- },
-
- //
-
- beforeFit: function() {
- helpers$1.callback(this.options.beforeFit, [this]);
- },
- fit: function() {
- var me = this;
- // Reset
- var minSize = me.minSize = {
- width: 0,
- height: 0
- };
-
- var chart = me.chart;
- var opts = me.options;
- var tickOpts = opts.ticks;
- var scaleLabelOpts = opts.scaleLabel;
- var gridLineOpts = opts.gridLines;
- var display = me._isVisible();
- var isBottom = opts.position === 'bottom';
- var isHorizontal = me.isHorizontal();
-
- // Width
- if (isHorizontal) {
- minSize.width = me.maxWidth;
- } else if (display) {
- minSize.width = getTickMarkLength(gridLineOpts) + getScaleLabelHeight(scaleLabelOpts);
- }
-
- // height
- if (!isHorizontal) {
- minSize.height = me.maxHeight; // fill all the height
- } else if (display) {
- minSize.height = getTickMarkLength(gridLineOpts) + getScaleLabelHeight(scaleLabelOpts);
- }
-
- // Don't bother fitting the ticks if we are not showing the labels
- if (tickOpts.display && display) {
- var tickFonts = parseTickFontOptions(tickOpts);
- var labelSizes = me._getLabelSizes();
- var firstLabelSize = labelSizes.first;
- var lastLabelSize = labelSizes.last;
- var widestLabelSize = labelSizes.widest;
- var highestLabelSize = labelSizes.highest;
- var lineSpace = tickFonts.minor.lineHeight * 0.4;
- var tickPadding = tickOpts.padding;
-
- if (isHorizontal) {
- // A horizontal axis is more constrained by the height.
- var isRotated = me.labelRotation !== 0;
- var angleRadians = helpers$1.toRadians(me.labelRotation);
- var cosRotation = Math.cos(angleRadians);
- var sinRotation = Math.sin(angleRadians);
-
- var labelHeight = sinRotation * widestLabelSize.width
- + cosRotation * (highestLabelSize.height - (isRotated ? highestLabelSize.offset : 0))
- + (isRotated ? 0 : lineSpace); // padding
-
- minSize.height = Math.min(me.maxHeight, minSize.height + labelHeight + tickPadding);
-
- var offsetLeft = me.getPixelForTick(0) - me.left;
- var offsetRight = me.right - me.getPixelForTick(me.getTicks().length - 1);
- var paddingLeft, paddingRight;
-
- // Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned
- // which means that the right padding is dominated by the font height
- if (isRotated) {
- paddingLeft = isBottom ?
- cosRotation * firstLabelSize.width + sinRotation * firstLabelSize.offset :
- sinRotation * (firstLabelSize.height - firstLabelSize.offset);
- paddingRight = isBottom ?
- sinRotation * (lastLabelSize.height - lastLabelSize.offset) :
- cosRotation * lastLabelSize.width + sinRotation * lastLabelSize.offset;
- } else {
- paddingLeft = firstLabelSize.width / 2;
- paddingRight = lastLabelSize.width / 2;
- }
-
- // Adjust padding taking into account changes in offsets
- // and add 3 px to move away from canvas edges
- me.paddingLeft = Math.max((paddingLeft - offsetLeft) * me.width / (me.width - offsetLeft), 0) + 3;
- me.paddingRight = Math.max((paddingRight - offsetRight) * me.width / (me.width - offsetRight), 0) + 3;
- } else {
- // A vertical axis is more constrained by the width. Labels are the
- // dominant factor here, so get that length first and account for padding
- var labelWidth = tickOpts.mirror ? 0 :
- // use lineSpace for consistency with horizontal axis
- // tickPadding is not implemented for horizontal
- widestLabelSize.width + tickPadding + lineSpace;
-
- minSize.width = Math.min(me.maxWidth, minSize.width + labelWidth);
-
- me.paddingTop = firstLabelSize.height / 2;
- me.paddingBottom = lastLabelSize.height / 2;
- }
- }
-
- me.handleMargins();
-
- if (isHorizontal) {
- me.width = me._length = chart.width - me.margins.left - me.margins.right;
- me.height = minSize.height;
- } else {
- me.width = minSize.width;
- me.height = me._length = chart.height - me.margins.top - me.margins.bottom;
- }
- },
-
- /**
- * Handle margins and padding interactions
- * @private
- */
- handleMargins: function() {
- var me = this;
- if (me.margins) {
- me.margins.left = Math.max(me.paddingLeft, me.margins.left);
- me.margins.top = Math.max(me.paddingTop, me.margins.top);
- me.margins.right = Math.max(me.paddingRight, me.margins.right);
- me.margins.bottom = Math.max(me.paddingBottom, me.margins.bottom);
- }
- },
-
- afterFit: function() {
- helpers$1.callback(this.options.afterFit, [this]);
- },
-
- // Shared Methods
- isHorizontal: function() {
- var pos = this.options.position;
- return pos === 'top' || pos === 'bottom';
- },
- isFullWidth: function() {
- return this.options.fullWidth;
- },
-
- // Get the correct value. NaN bad inputs, If the value type is object get the x or y based on whether we are horizontal or not
- getRightValue: function(rawValue) {
- // Null and undefined values first
- if (isNullOrUndef(rawValue)) {
- return NaN;
- }
- // isNaN(object) returns true, so make sure NaN is checking for a number; Discard Infinite values
- if ((typeof rawValue === 'number' || rawValue instanceof Number) && !isFinite(rawValue)) {
- return NaN;
- }
-
- // If it is in fact an object, dive in one more level
- if (rawValue) {
- if (this.isHorizontal()) {
- if (rawValue.x !== undefined) {
- return this.getRightValue(rawValue.x);
- }
- } else if (rawValue.y !== undefined) {
- return this.getRightValue(rawValue.y);
- }
- }
-
- // Value is good, return it
- return rawValue;
- },
-
- _convertTicksToLabels: function(ticks) {
- var me = this;
- var labels, i, ilen;
-
- me.ticks = ticks.map(function(tick) {
- return tick.value;
- });
-
- me.beforeTickToLabelConversion();
-
- // New implementations should return the formatted tick labels but for BACKWARD
- // COMPAT, we still support no return (`this.ticks` internally changed by calling
- // this method and supposed to contain only string values).
- labels = me.convertTicksToLabels(ticks) || me.ticks;
-
- me.afterTickToLabelConversion();
-
- // BACKWARD COMPAT: synchronize `_ticks` with labels (so potentially `this.ticks`)
- for (i = 0, ilen = ticks.length; i < ilen; ++i) {
- ticks[i].label = labels[i];
- }
-
- return labels;
- },
-
- /**
- * @private
- */
- _getLabelSizes: function() {
- var me = this;
- var labelSizes = me._labelSizes;
-
- if (!labelSizes) {
- me._labelSizes = labelSizes = computeLabelSizes(me.ctx, parseTickFontOptions(me.options.ticks), me.getTicks(), me.longestTextCache);
- me.longestLabelWidth = labelSizes.widest.width;
- }
-
- return labelSizes;
- },
-
- /**
- * @private
- */
- _parseValue: function(value) {
- var start, end, min, max;
-
- if (isArray(value)) {
- start = +this.getRightValue(value[0]);
- end = +this.getRightValue(value[1]);
- min = Math.min(start, end);
- max = Math.max(start, end);
- } else {
- value = +this.getRightValue(value);
- start = undefined;
- end = value;
- min = value;
- max = value;
- }
-
- return {
- min: min,
- max: max,
- start: start,
- end: end
- };
- },
-
- /**
- * @private
- */
- _getScaleLabel: function(rawValue) {
- var v = this._parseValue(rawValue);
- if (v.start !== undefined) {
- return '[' + v.start + ', ' + v.end + ']';
- }
-
- return +this.getRightValue(rawValue);
- },
-
- /**
- * Used to get the value to display in the tooltip for the data at the given index
- * @param index
- * @param datasetIndex
- */
- getLabelForIndex: helpers$1.noop,
-
- /**
- * Returns the location of the given data point. Value can either be an index or a numerical value
- * The coordinate (0, 0) is at the upper-left corner of the canvas
- * @param value
- * @param index
- * @param datasetIndex
- */
- getPixelForValue: helpers$1.noop,
-
- /**
- * Used to get the data value from a given pixel. This is the inverse of getPixelForValue
- * The coordinate (0, 0) is at the upper-left corner of the canvas
- * @param pixel
- */
- getValueForPixel: helpers$1.noop,
-
- /**
- * Returns the location of the tick at the given index
- * The coordinate (0, 0) is at the upper-left corner of the canvas
- */
- getPixelForTick: function(index) {
- var me = this;
- var offset = me.options.offset;
- var numTicks = me._ticks.length;
- var tickWidth = 1 / Math.max(numTicks - (offset ? 0 : 1), 1);
-
- return index < 0 || index > numTicks - 1
- ? null
- : me.getPixelForDecimal(index * tickWidth + (offset ? tickWidth / 2 : 0));
- },
-
- /**
- * Utility for getting the pixel location of a percentage of scale
- * The coordinate (0, 0) is at the upper-left corner of the canvas
- */
- getPixelForDecimal: function(decimal) {
- var me = this;
-
- if (me._reversePixels) {
- decimal = 1 - decimal;
- }
-
- return me._startPixel + decimal * me._length;
- },
-
- getDecimalForPixel: function(pixel) {
- var decimal = (pixel - this._startPixel) / this._length;
- return this._reversePixels ? 1 - decimal : decimal;
- },
-
- /**
- * Returns the pixel for the minimum chart value
- * The coordinate (0, 0) is at the upper-left corner of the canvas
- */
- getBasePixel: function() {
- return this.getPixelForValue(this.getBaseValue());
- },
-
- getBaseValue: function() {
- var me = this;
- var min = me.min;
- var max = me.max;
-
- return me.beginAtZero ? 0 :
- min < 0 && max < 0 ? max :
- min > 0 && max > 0 ? min :
- 0;
- },
-
- /**
- * Returns a subset of ticks to be plotted to avoid overlapping labels.
- * @private
- */
- _autoSkip: function(ticks) {
- var me = this;
- var tickOpts = me.options.ticks;
- var axisLength = me._length;
- var ticksLimit = tickOpts.maxTicksLimit || axisLength / me._tickSize() + 1;
- var majorIndices = tickOpts.major.enabled ? getMajorIndices(ticks) : [];
- var numMajorIndices = majorIndices.length;
- var first = majorIndices[0];
- var last = majorIndices[numMajorIndices - 1];
- var i, ilen, spacing, avgMajorSpacing;
-
- // If there are too many major ticks to display them all
- if (numMajorIndices > ticksLimit) {
- skipMajors(ticks, majorIndices, numMajorIndices / ticksLimit);
- return nonSkipped(ticks);
- }
-
- spacing = calculateSpacing(majorIndices, ticks, axisLength, ticksLimit);
-
- if (numMajorIndices > 0) {
- for (i = 0, ilen = numMajorIndices - 1; i < ilen; i++) {
- skip(ticks, spacing, majorIndices[i], majorIndices[i + 1]);
- }
- avgMajorSpacing = numMajorIndices > 1 ? (last - first) / (numMajorIndices - 1) : null;
- skip(ticks, spacing, helpers$1.isNullOrUndef(avgMajorSpacing) ? 0 : first - avgMajorSpacing, first);
- skip(ticks, spacing, last, helpers$1.isNullOrUndef(avgMajorSpacing) ? ticks.length : last + avgMajorSpacing);
- return nonSkipped(ticks);
- }
- skip(ticks, spacing);
- return nonSkipped(ticks);
- },
-
- /**
- * @private
- */
- _tickSize: function() {
- var me = this;
- var optionTicks = me.options.ticks;
-
- // Calculate space needed by label in axis direction.
- var rot = helpers$1.toRadians(me.labelRotation);
- var cos = Math.abs(Math.cos(rot));
- var sin = Math.abs(Math.sin(rot));
-
- var labelSizes = me._getLabelSizes();
- var padding = optionTicks.autoSkipPadding || 0;
- var w = labelSizes ? labelSizes.widest.width + padding : 0;
- var h = labelSizes ? labelSizes.highest.height + padding : 0;
-
- // Calculate space needed for 1 tick in axis direction.
- return me.isHorizontal()
- ? h * cos > w * sin ? w / cos : h / sin
- : h * sin < w * cos ? h / cos : w / sin;
- },
-
- /**
- * @private
- */
- _isVisible: function() {
- var me = this;
- var chart = me.chart;
- var display = me.options.display;
- var i, ilen, meta;
-
- if (display !== 'auto') {
- return !!display;
- }
-
- // When 'auto', the scale is visible if at least one associated dataset is visible.
- for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {
- if (chart.isDatasetVisible(i)) {
- meta = chart.getDatasetMeta(i);
- if (meta.xAxisID === me.id || meta.yAxisID === me.id) {
- return true;
- }
- }
- }
-
- return false;
- },
-
- /**
- * @private
- */
- _computeGridLineItems: function(chartArea) {
- var me = this;
- var chart = me.chart;
- var options = me.options;
- var gridLines = options.gridLines;
- var position = options.position;
- var offsetGridLines = gridLines.offsetGridLines;
- var isHorizontal = me.isHorizontal();
- var ticks = me._ticksToDraw;
- var ticksLength = ticks.length + (offsetGridLines ? 1 : 0);
-
- var tl = getTickMarkLength(gridLines);
- var items = [];
- var axisWidth = gridLines.drawBorder ? valueAtIndexOrDefault(gridLines.lineWidth, 0, 0) : 0;
- var axisHalfWidth = axisWidth / 2;
- var alignPixel = helpers$1._alignPixel;
- var alignBorderValue = function(pixel) {
- return alignPixel(chart, pixel, axisWidth);
- };
- var borderValue, i, tick, lineValue, alignedLineValue;
- var tx1, ty1, tx2, ty2, x1, y1, x2, y2, lineWidth, lineColor, borderDash, borderDashOffset;
-
- if (position === 'top') {
- borderValue = alignBorderValue(me.bottom);
- ty1 = me.bottom - tl;
- ty2 = borderValue - axisHalfWidth;
- y1 = alignBorderValue(chartArea.top) + axisHalfWidth;
- y2 = chartArea.bottom;
- } else if (position === 'bottom') {
- borderValue = alignBorderValue(me.top);
- y1 = chartArea.top;
- y2 = alignBorderValue(chartArea.bottom) - axisHalfWidth;
- ty1 = borderValue + axisHalfWidth;
- ty2 = me.top + tl;
- } else if (position === 'left') {
- borderValue = alignBorderValue(me.right);
- tx1 = me.right - tl;
- tx2 = borderValue - axisHalfWidth;
- x1 = alignBorderValue(chartArea.left) + axisHalfWidth;
- x2 = chartArea.right;
- } else {
- borderValue = alignBorderValue(me.left);
- x1 = chartArea.left;
- x2 = alignBorderValue(chartArea.right) - axisHalfWidth;
- tx1 = borderValue + axisHalfWidth;
- tx2 = me.left + tl;
- }
-
- for (i = 0; i < ticksLength; ++i) {
- tick = ticks[i] || {};
-
- // autoskipper skipped this tick (#4635)
- if (isNullOrUndef(tick.label) && i < ticks.length) {
- continue;
- }
-
- if (i === me.zeroLineIndex && options.offset === offsetGridLines) {
- // Draw the first index specially
- lineWidth = gridLines.zeroLineWidth;
- lineColor = gridLines.zeroLineColor;
- borderDash = gridLines.zeroLineBorderDash || [];
- borderDashOffset = gridLines.zeroLineBorderDashOffset || 0.0;
- } else {
- lineWidth = valueAtIndexOrDefault(gridLines.lineWidth, i, 1);
- lineColor = valueAtIndexOrDefault(gridLines.color, i, 'rgba(0,0,0,0.1)');
- borderDash = gridLines.borderDash || [];
- borderDashOffset = gridLines.borderDashOffset || 0.0;
- }
-
- lineValue = getPixelForGridLine(me, tick._index || i, offsetGridLines);
-
- // Skip if the pixel is out of the range
- if (lineValue === undefined) {
- continue;
- }
-
- alignedLineValue = alignPixel(chart, lineValue, lineWidth);
-
- if (isHorizontal) {
- tx1 = tx2 = x1 = x2 = alignedLineValue;
- } else {
- ty1 = ty2 = y1 = y2 = alignedLineValue;
- }
-
- items.push({
- tx1: tx1,
- ty1: ty1,
- tx2: tx2,
- ty2: ty2,
- x1: x1,
- y1: y1,
- x2: x2,
- y2: y2,
- width: lineWidth,
- color: lineColor,
- borderDash: borderDash,
- borderDashOffset: borderDashOffset,
- });
- }
-
- items.ticksLength = ticksLength;
- items.borderValue = borderValue;
-
- return items;
- },
-
- /**
- * @private
- */
- _computeLabelItems: function() {
- var me = this;
- var options = me.options;
- var optionTicks = options.ticks;
- var position = options.position;
- var isMirrored = optionTicks.mirror;
- var isHorizontal = me.isHorizontal();
- var ticks = me._ticksToDraw;
- var fonts = parseTickFontOptions(optionTicks);
- var tickPadding = optionTicks.padding;
- var tl = getTickMarkLength(options.gridLines);
- var rotation = -helpers$1.toRadians(me.labelRotation);
- var items = [];
- var i, ilen, tick, label, x, y, textAlign, pixel, font, lineHeight, lineCount, textOffset;
-
- if (position === 'top') {
- y = me.bottom - tl - tickPadding;
- textAlign = !rotation ? 'center' : 'left';
- } else if (position === 'bottom') {
- y = me.top + tl + tickPadding;
- textAlign = !rotation ? 'center' : 'right';
- } else if (position === 'left') {
- x = me.right - (isMirrored ? 0 : tl) - tickPadding;
- textAlign = isMirrored ? 'left' : 'right';
- } else {
- x = me.left + (isMirrored ? 0 : tl) + tickPadding;
- textAlign = isMirrored ? 'right' : 'left';
- }
-
- for (i = 0, ilen = ticks.length; i < ilen; ++i) {
- tick = ticks[i];
- label = tick.label;
-
- // autoskipper skipped this tick (#4635)
- if (isNullOrUndef(label)) {
- continue;
- }
-
- pixel = me.getPixelForTick(tick._index || i) + optionTicks.labelOffset;
- font = tick.major ? fonts.major : fonts.minor;
- lineHeight = font.lineHeight;
- lineCount = isArray(label) ? label.length : 1;
-
- if (isHorizontal) {
- x = pixel;
- textOffset = position === 'top'
- ? ((!rotation ? 0.5 : 1) - lineCount) * lineHeight
- : (!rotation ? 0.5 : 0) * lineHeight;
- } else {
- y = pixel;
- textOffset = (1 - lineCount) * lineHeight / 2;
- }
-
- items.push({
- x: x,
- y: y,
- rotation: rotation,
- label: label,
- font: font,
- textOffset: textOffset,
- textAlign: textAlign
- });
- }
-
- return items;
- },
-
- /**
- * @private
- */
- _drawGrid: function(chartArea) {
- var me = this;
- var gridLines = me.options.gridLines;
-
- if (!gridLines.display) {
- return;
- }
-
- var ctx = me.ctx;
- var chart = me.chart;
- var alignPixel = helpers$1._alignPixel;
- var axisWidth = gridLines.drawBorder ? valueAtIndexOrDefault(gridLines.lineWidth, 0, 0) : 0;
- var items = me._gridLineItems || (me._gridLineItems = me._computeGridLineItems(chartArea));
- var width, color, i, ilen, item;
-
- for (i = 0, ilen = items.length; i < ilen; ++i) {
- item = items[i];
- width = item.width;
- color = item.color;
-
- if (width && color) {
- ctx.save();
- ctx.lineWidth = width;
- ctx.strokeStyle = color;
- if (ctx.setLineDash) {
- ctx.setLineDash(item.borderDash);
- ctx.lineDashOffset = item.borderDashOffset;
- }
-
- ctx.beginPath();
-
- if (gridLines.drawTicks) {
- ctx.moveTo(item.tx1, item.ty1);
- ctx.lineTo(item.tx2, item.ty2);
- }
-
- if (gridLines.drawOnChartArea) {
- ctx.moveTo(item.x1, item.y1);
- ctx.lineTo(item.x2, item.y2);
- }
-
- ctx.stroke();
- ctx.restore();
- }
- }
-
- if (axisWidth) {
- // Draw the line at the edge of the axis
- var firstLineWidth = axisWidth;
- var lastLineWidth = valueAtIndexOrDefault(gridLines.lineWidth, items.ticksLength - 1, 1);
- var borderValue = items.borderValue;
- var x1, x2, y1, y2;
-
- if (me.isHorizontal()) {
- x1 = alignPixel(chart, me.left, firstLineWidth) - firstLineWidth / 2;
- x2 = alignPixel(chart, me.right, lastLineWidth) + lastLineWidth / 2;
- y1 = y2 = borderValue;
- } else {
- y1 = alignPixel(chart, me.top, firstLineWidth) - firstLineWidth / 2;
- y2 = alignPixel(chart, me.bottom, lastLineWidth) + lastLineWidth / 2;
- x1 = x2 = borderValue;
- }
-
- ctx.lineWidth = axisWidth;
- ctx.strokeStyle = valueAtIndexOrDefault(gridLines.color, 0);
- ctx.beginPath();
- ctx.moveTo(x1, y1);
- ctx.lineTo(x2, y2);
- ctx.stroke();
- }
- },
-
- /**
- * @private
- */
- _drawLabels: function() {
- var me = this;
- var optionTicks = me.options.ticks;
-
- if (!optionTicks.display) {
- return;
- }
-
- var ctx = me.ctx;
- var items = me._labelItems || (me._labelItems = me._computeLabelItems());
- var i, j, ilen, jlen, item, tickFont, label, y;
-
- for (i = 0, ilen = items.length; i < ilen; ++i) {
- item = items[i];
- tickFont = item.font;
-
- // Make sure we draw text in the correct color and font
- ctx.save();
- ctx.translate(item.x, item.y);
- ctx.rotate(item.rotation);
- ctx.font = tickFont.string;
- ctx.fillStyle = tickFont.color;
- ctx.textBaseline = 'middle';
- ctx.textAlign = item.textAlign;
-
- label = item.label;
- y = item.textOffset;
- if (isArray(label)) {
- for (j = 0, jlen = label.length; j < jlen; ++j) {
- // We just make sure the multiline element is a string here..
- ctx.fillText('' + label[j], 0, y);
- y += tickFont.lineHeight;
- }
- } else {
- ctx.fillText(label, 0, y);
- }
- ctx.restore();
- }
- },
-
- /**
- * @private
- */
- _drawTitle: function() {
- var me = this;
- var ctx = me.ctx;
- var options = me.options;
- var scaleLabel = options.scaleLabel;
-
- if (!scaleLabel.display) {
- return;
- }
-
- var scaleLabelFontColor = valueOrDefault$a(scaleLabel.fontColor, core_defaults.global.defaultFontColor);
- var scaleLabelFont = helpers$1.options._parseFont(scaleLabel);
- var scaleLabelPadding = helpers$1.options.toPadding(scaleLabel.padding);
- var halfLineHeight = scaleLabelFont.lineHeight / 2;
- var position = options.position;
- var rotation = 0;
- var scaleLabelX, scaleLabelY;
-
- if (me.isHorizontal()) {
- scaleLabelX = me.left + me.width / 2; // midpoint of the width
- scaleLabelY = position === 'bottom'
- ? me.bottom - halfLineHeight - scaleLabelPadding.bottom
- : me.top + halfLineHeight + scaleLabelPadding.top;
- } else {
- var isLeft = position === 'left';
- scaleLabelX = isLeft
- ? me.left + halfLineHeight + scaleLabelPadding.top
- : me.right - halfLineHeight - scaleLabelPadding.top;
- scaleLabelY = me.top + me.height / 2;
- rotation = isLeft ? -0.5 * Math.PI : 0.5 * Math.PI;
- }
-
- ctx.save();
- ctx.translate(scaleLabelX, scaleLabelY);
- ctx.rotate(rotation);
- ctx.textAlign = 'center';
- ctx.textBaseline = 'middle';
- ctx.fillStyle = scaleLabelFontColor; // render in correct colour
- ctx.font = scaleLabelFont.string;
- ctx.fillText(scaleLabel.labelString, 0, 0);
- ctx.restore();
- },
-
- draw: function(chartArea) {
- var me = this;
-
- if (!me._isVisible()) {
- return;
- }
-
- me._drawGrid(chartArea);
- me._drawTitle();
- me._drawLabels();
- },
-
- /**
- * @private
- */
- _layers: function() {
- var me = this;
- var opts = me.options;
- var tz = opts.ticks && opts.ticks.z || 0;
- var gz = opts.gridLines && opts.gridLines.z || 0;
-
- if (!me._isVisible() || tz === gz || me.draw !== me._draw) {
- // backward compatibility: draw has been overridden by custom scale
- return [{
- z: tz,
- draw: function() {
- me.draw.apply(me, arguments);
- }
- }];
- }
-
- return [{
- z: gz,
- draw: function() {
- me._drawGrid.apply(me, arguments);
- me._drawTitle.apply(me, arguments);
- }
- }, {
- z: tz,
- draw: function() {
- me._drawLabels.apply(me, arguments);
- }
- }];
- },
-
- /**
- * @private
- */
- _getMatchingVisibleMetas: function(type) {
- var me = this;
- var isHorizontal = me.isHorizontal();
- return me.chart._getSortedVisibleDatasetMetas()
- .filter(function(meta) {
- return (!type || meta.type === type)
- && (isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id);
- });
- }
-});
-
-Scale.prototype._draw = Scale.prototype.draw;
-
-var core_scale = Scale;
-
-var isNullOrUndef$1 = helpers$1.isNullOrUndef;
-
-var defaultConfig = {
- position: 'bottom'
-};
-
-var scale_category = core_scale.extend({
- determineDataLimits: function() {
- var me = this;
- var labels = me._getLabels();
- var ticksOpts = me.options.ticks;
- var min = ticksOpts.min;
- var max = ticksOpts.max;
- var minIndex = 0;
- var maxIndex = labels.length - 1;
- var findIndex;
-
- if (min !== undefined) {
- // user specified min value
- findIndex = labels.indexOf(min);
- if (findIndex >= 0) {
- minIndex = findIndex;
- }
- }
-
- if (max !== undefined) {
- // user specified max value
- findIndex = labels.indexOf(max);
- if (findIndex >= 0) {
- maxIndex = findIndex;
- }
- }
-
- me.minIndex = minIndex;
- me.maxIndex = maxIndex;
- me.min = labels[minIndex];
- me.max = labels[maxIndex];
- },
-
- buildTicks: function() {
- var me = this;
- var labels = me._getLabels();
- var minIndex = me.minIndex;
- var maxIndex = me.maxIndex;
-
- // If we are viewing some subset of labels, slice the original array
- me.ticks = (minIndex === 0 && maxIndex === labels.length - 1) ? labels : labels.slice(minIndex, maxIndex + 1);
- },
-
- getLabelForIndex: function(index, datasetIndex) {
- var me = this;
- var chart = me.chart;
-
- if (chart.getDatasetMeta(datasetIndex).controller._getValueScaleId() === me.id) {
- return me.getRightValue(chart.data.datasets[datasetIndex].data[index]);
- }
-
- return me._getLabels()[index];
- },
-
- _configure: function() {
- var me = this;
- var offset = me.options.offset;
- var ticks = me.ticks;
-
- core_scale.prototype._configure.call(me);
-
- if (!me.isHorizontal()) {
- // For backward compatibility, vertical category scale reverse is inverted.
- me._reversePixels = !me._reversePixels;
- }
-
- if (!ticks) {
- return;
- }
-
- me._startValue = me.minIndex - (offset ? 0.5 : 0);
- me._valueRange = Math.max(ticks.length - (offset ? 0 : 1), 1);
- },
-
- // Used to get data value locations. Value can either be an index or a numerical value
- getPixelForValue: function(value, index, datasetIndex) {
- var me = this;
- var valueCategory, labels, idx;
-
- if (!isNullOrUndef$1(index) && !isNullOrUndef$1(datasetIndex)) {
- value = me.chart.data.datasets[datasetIndex].data[index];
- }
-
- // If value is a data object, then index is the index in the data array,
- // not the index of the scale. We need to change that.
- if (!isNullOrUndef$1(value)) {
- valueCategory = me.isHorizontal() ? value.x : value.y;
- }
- if (valueCategory !== undefined || (value !== undefined && isNaN(index))) {
- labels = me._getLabels();
- value = helpers$1.valueOrDefault(valueCategory, value);
- idx = labels.indexOf(value);
- index = idx !== -1 ? idx : index;
- if (isNaN(index)) {
- index = value;
- }
- }
- return me.getPixelForDecimal((index - me._startValue) / me._valueRange);
- },
-
- getPixelForTick: function(index) {
- var ticks = this.ticks;
- return index < 0 || index > ticks.length - 1
- ? null
- : this.getPixelForValue(ticks[index], index + this.minIndex);
- },
-
- getValueForPixel: function(pixel) {
- var me = this;
- var value = Math.round(me._startValue + me.getDecimalForPixel(pixel) * me._valueRange);
- return Math.min(Math.max(value, 0), me.ticks.length - 1);
- },
-
- getBasePixel: function() {
- return this.bottom;
- }
-});
-
-// INTERNAL: static default options, registered in src/index.js
-var _defaults = defaultConfig;
-scale_category._defaults = _defaults;
-
-var noop = helpers$1.noop;
-var isNullOrUndef$2 = helpers$1.isNullOrUndef;
-
-/**
- * Generate a set of linear ticks
- * @param generationOptions the options used to generate the ticks
- * @param dataRange the range of the data
- * @returns {number[]} array of tick values
- */
-function generateTicks(generationOptions, dataRange) {
- var ticks = [];
- // To get a "nice" value for the tick spacing, we will use the appropriately named
- // "nice number" algorithm. See https://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
- // for details.
-
- var MIN_SPACING = 1e-14;
- var stepSize = generationOptions.stepSize;
- var unit = stepSize || 1;
- var maxNumSpaces = generationOptions.maxTicks - 1;
- var min = generationOptions.min;
- var max = generationOptions.max;
- var precision = generationOptions.precision;
- var rmin = dataRange.min;
- var rmax = dataRange.max;
- var spacing = helpers$1.niceNum((rmax - rmin) / maxNumSpaces / unit) * unit;
- var factor, niceMin, niceMax, numSpaces;
-
- // Beyond MIN_SPACING floating point numbers being to lose precision
- // such that we can't do the math necessary to generate ticks
- if (spacing < MIN_SPACING && isNullOrUndef$2(min) && isNullOrUndef$2(max)) {
- return [rmin, rmax];
- }
-
- numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing);
- if (numSpaces > maxNumSpaces) {
- // If the calculated num of spaces exceeds maxNumSpaces, recalculate it
- spacing = helpers$1.niceNum(numSpaces * spacing / maxNumSpaces / unit) * unit;
- }
-
- if (stepSize || isNullOrUndef$2(precision)) {
- // If a precision is not specified, calculate factor based on spacing
- factor = Math.pow(10, helpers$1._decimalPlaces(spacing));
- } else {
- // If the user specified a precision, round to that number of decimal places
- factor = Math.pow(10, precision);
- spacing = Math.ceil(spacing * factor) / factor;
- }
-
- niceMin = Math.floor(rmin / spacing) * spacing;
- niceMax = Math.ceil(rmax / spacing) * spacing;
-
- // If min, max and stepSize is set and they make an evenly spaced scale use it.
- if (stepSize) {
- // If very close to our whole number, use it.
- if (!isNullOrUndef$2(min) && helpers$1.almostWhole(min / spacing, spacing / 1000)) {
- niceMin = min;
- }
- if (!isNullOrUndef$2(max) && helpers$1.almostWhole(max / spacing, spacing / 1000)) {
- niceMax = max;
- }
- }
-
- numSpaces = (niceMax - niceMin) / spacing;
- // If very close to our rounded value, use it.
- if (helpers$1.almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {
- numSpaces = Math.round(numSpaces);
- } else {
- numSpaces = Math.ceil(numSpaces);
- }
-
- niceMin = Math.round(niceMin * factor) / factor;
- niceMax = Math.round(niceMax * factor) / factor;
- ticks.push(isNullOrUndef$2(min) ? niceMin : min);
- for (var j = 1; j < numSpaces; ++j) {
- ticks.push(Math.round((niceMin + j * spacing) * factor) / factor);
- }
- ticks.push(isNullOrUndef$2(max) ? niceMax : max);
-
- return ticks;
-}
-
-var scale_linearbase = core_scale.extend({
- getRightValue: function(value) {
- if (typeof value === 'string') {
- return +value;
- }
- return core_scale.prototype.getRightValue.call(this, value);
- },
-
- handleTickRangeOptions: function() {
- var me = this;
- var opts = me.options;
- var tickOpts = opts.ticks;
-
- // If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
- // do nothing since that would make the chart weird. If the user really wants a weird chart
- // axis, they can manually override it
- if (tickOpts.beginAtZero) {
- var minSign = helpers$1.sign(me.min);
- var maxSign = helpers$1.sign(me.max);
-
- if (minSign < 0 && maxSign < 0) {
- // move the top up to 0
- me.max = 0;
- } else if (minSign > 0 && maxSign > 0) {
- // move the bottom down to 0
- me.min = 0;
- }
- }
-
- var setMin = tickOpts.min !== undefined || tickOpts.suggestedMin !== undefined;
- var setMax = tickOpts.max !== undefined || tickOpts.suggestedMax !== undefined;
-
- if (tickOpts.min !== undefined) {
- me.min = tickOpts.min;
- } else if (tickOpts.suggestedMin !== undefined) {
- if (me.min === null) {
- me.min = tickOpts.suggestedMin;
- } else {
- me.min = Math.min(me.min, tickOpts.suggestedMin);
- }
- }
-
- if (tickOpts.max !== undefined) {
- me.max = tickOpts.max;
- } else if (tickOpts.suggestedMax !== undefined) {
- if (me.max === null) {
- me.max = tickOpts.suggestedMax;
- } else {
- me.max = Math.max(me.max, tickOpts.suggestedMax);
- }
- }
-
- if (setMin !== setMax) {
- // We set the min or the max but not both.
- // So ensure that our range is good
- // Inverted or 0 length range can happen when
- // ticks.min is set, and no datasets are visible
- if (me.min >= me.max) {
- if (setMin) {
- me.max = me.min + 1;
- } else {
- me.min = me.max - 1;
- }
- }
- }
-
- if (me.min === me.max) {
- me.max++;
-
- if (!tickOpts.beginAtZero) {
- me.min--;
- }
- }
- },
-
- getTickLimit: function() {
- var me = this;
- var tickOpts = me.options.ticks;
- var stepSize = tickOpts.stepSize;
- var maxTicksLimit = tickOpts.maxTicksLimit;
- var maxTicks;
-
- if (stepSize) {
- maxTicks = Math.ceil(me.max / stepSize) - Math.floor(me.min / stepSize) + 1;
- } else {
- maxTicks = me._computeTickLimit();
- maxTicksLimit = maxTicksLimit || 11;
- }
-
- if (maxTicksLimit) {
- maxTicks = Math.min(maxTicksLimit, maxTicks);
- }
-
- return maxTicks;
- },
-
- _computeTickLimit: function() {
- return Number.POSITIVE_INFINITY;
- },
-
- handleDirectionalChanges: noop,
-
- buildTicks: function() {
- var me = this;
- var opts = me.options;
- var tickOpts = opts.ticks;
-
- // Figure out what the max number of ticks we can support it is based on the size of
- // the axis area. For now, we say that the minimum tick spacing in pixels must be 40
- // We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
- // the graph. Make sure we always have at least 2 ticks
- var maxTicks = me.getTickLimit();
- maxTicks = Math.max(2, maxTicks);
-
- var numericGeneratorOptions = {
- maxTicks: maxTicks,
- min: tickOpts.min,
- max: tickOpts.max,
- precision: tickOpts.precision,
- stepSize: helpers$1.valueOrDefault(tickOpts.fixedStepSize, tickOpts.stepSize)
- };
- var ticks = me.ticks = generateTicks(numericGeneratorOptions, me);
-
- me.handleDirectionalChanges();
-
- // At this point, we need to update our max and min given the tick values since we have expanded the
- // range of the scale
- me.max = helpers$1.max(ticks);
- me.min = helpers$1.min(ticks);
-
- if (tickOpts.reverse) {
- ticks.reverse();
-
- me.start = me.max;
- me.end = me.min;
- } else {
- me.start = me.min;
- me.end = me.max;
- }
- },
-
- convertTicksToLabels: function() {
- var me = this;
- me.ticksAsNumbers = me.ticks.slice();
- me.zeroLineIndex = me.ticks.indexOf(0);
-
- core_scale.prototype.convertTicksToLabels.call(me);
- },
-
- _configure: function() {
- var me = this;
- var ticks = me.getTicks();
- var start = me.min;
- var end = me.max;
- var offset;
-
- core_scale.prototype._configure.call(me);
-
- if (me.options.offset && ticks.length) {
- offset = (end - start) / Math.max(ticks.length - 1, 1) / 2;
- start -= offset;
- end += offset;
- }
- me._startValue = start;
- me._endValue = end;
- me._valueRange = end - start;
- }
-});
-
-var defaultConfig$1 = {
- position: 'left',
- ticks: {
- callback: core_ticks.formatters.linear
- }
-};
-
-var DEFAULT_MIN = 0;
-var DEFAULT_MAX = 1;
-
-function getOrCreateStack(stacks, stacked, meta) {
- var key = [
- meta.type,
- // we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
- stacked === undefined && meta.stack === undefined ? meta.index : '',
- meta.stack
- ].join('.');
-
- if (stacks[key] === undefined) {
- stacks[key] = {
- pos: [],
- neg: []
- };
- }
-
- return stacks[key];
-}
-
-function stackData(scale, stacks, meta, data) {
- var opts = scale.options;
- var stacked = opts.stacked;
- var stack = getOrCreateStack(stacks, stacked, meta);
- var pos = stack.pos;
- var neg = stack.neg;
- var ilen = data.length;
- var i, value;
-
- for (i = 0; i < ilen; ++i) {
- value = scale._parseValue(data[i]);
- if (isNaN(value.min) || isNaN(value.max) || meta.data[i].hidden) {
- continue;
- }
-
- pos[i] = pos[i] || 0;
- neg[i] = neg[i] || 0;
-
- if (opts.relativePoints) {
- pos[i] = 100;
- } else if (value.min < 0 || value.max < 0) {
- neg[i] += value.min;
- } else {
- pos[i] += value.max;
- }
- }
-}
-
-function updateMinMax(scale, meta, data) {
- var ilen = data.length;
- var i, value;
-
- for (i = 0; i < ilen; ++i) {
- value = scale._parseValue(data[i]);
- if (isNaN(value.min) || isNaN(value.max) || meta.data[i].hidden) {
- continue;
- }
-
- scale.min = Math.min(scale.min, value.min);
- scale.max = Math.max(scale.max, value.max);
- }
-}
-
-var scale_linear = scale_linearbase.extend({
- determineDataLimits: function() {
- var me = this;
- var opts = me.options;
- var chart = me.chart;
- var datasets = chart.data.datasets;
- var metasets = me._getMatchingVisibleMetas();
- var hasStacks = opts.stacked;
- var stacks = {};
- var ilen = metasets.length;
- var i, meta, data, values;
-
- me.min = Number.POSITIVE_INFINITY;
- me.max = Number.NEGATIVE_INFINITY;
-
- if (hasStacks === undefined) {
- for (i = 0; !hasStacks && i < ilen; ++i) {
- meta = metasets[i];
- hasStacks = meta.stack !== undefined;
- }
- }
-
- for (i = 0; i < ilen; ++i) {
- meta = metasets[i];
- data = datasets[meta.index].data;
- if (hasStacks) {
- stackData(me, stacks, meta, data);
- } else {
- updateMinMax(me, meta, data);
- }
- }
-
- helpers$1.each(stacks, function(stackValues) {
- values = stackValues.pos.concat(stackValues.neg);
- me.min = Math.min(me.min, helpers$1.min(values));
- me.max = Math.max(me.max, helpers$1.max(values));
- });
-
- me.min = helpers$1.isFinite(me.min) && !isNaN(me.min) ? me.min : DEFAULT_MIN;
- me.max = helpers$1.isFinite(me.max) && !isNaN(me.max) ? me.max : DEFAULT_MAX;
-
- // Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
- me.handleTickRangeOptions();
- },
-
- // Returns the maximum number of ticks based on the scale dimension
- _computeTickLimit: function() {
- var me = this;
- var tickFont;
-
- if (me.isHorizontal()) {
- return Math.ceil(me.width / 40);
- }
- tickFont = helpers$1.options._parseFont(me.options.ticks);
- return Math.ceil(me.height / tickFont.lineHeight);
- },
-
- // Called after the ticks are built. We need
- handleDirectionalChanges: function() {
- if (!this.isHorizontal()) {
- // We are in a vertical orientation. The top value is the highest. So reverse the array
- this.ticks.reverse();
- }
- },
-
- getLabelForIndex: function(index, datasetIndex) {
- return this._getScaleLabel(this.chart.data.datasets[datasetIndex].data[index]);
- },
-
- // Utils
- getPixelForValue: function(value) {
- var me = this;
- return me.getPixelForDecimal((+me.getRightValue(value) - me._startValue) / me._valueRange);
- },
-
- getValueForPixel: function(pixel) {
- return this._startValue + this.getDecimalForPixel(pixel) * this._valueRange;
- },
-
- getPixelForTick: function(index) {
- var ticks = this.ticksAsNumbers;
- if (index < 0 || index > ticks.length - 1) {
- return null;
- }
- return this.getPixelForValue(ticks[index]);
- }
-});
-
-// INTERNAL: static default options, registered in src/index.js
-var _defaults$1 = defaultConfig$1;
-scale_linear._defaults = _defaults$1;
-
-var valueOrDefault$b = helpers$1.valueOrDefault;
-var log10 = helpers$1.math.log10;
-
-/**
- * Generate a set of logarithmic ticks
- * @param generationOptions the options used to generate the ticks
- * @param dataRange the range of the data
- * @returns {number[]} array of tick values
- */
-function generateTicks$1(generationOptions, dataRange) {
- var ticks = [];
-
- var tickVal = valueOrDefault$b(generationOptions.min, Math.pow(10, Math.floor(log10(dataRange.min))));
-
- var endExp = Math.floor(log10(dataRange.max));
- var endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp));
- var exp, significand;
-
- if (tickVal === 0) {
- exp = Math.floor(log10(dataRange.minNotZero));
- significand = Math.floor(dataRange.minNotZero / Math.pow(10, exp));
-
- ticks.push(tickVal);
- tickVal = significand * Math.pow(10, exp);
- } else {
- exp = Math.floor(log10(tickVal));
- significand = Math.floor(tickVal / Math.pow(10, exp));
- }
- var precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1;
-
- do {
- ticks.push(tickVal);
-
- ++significand;
- if (significand === 10) {
- significand = 1;
- ++exp;
- precision = exp >= 0 ? 1 : precision;
- }
-
- tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision;
- } while (exp < endExp || (exp === endExp && significand < endSignificand));
-
- var lastTick = valueOrDefault$b(generationOptions.max, tickVal);
- ticks.push(lastTick);
-
- return ticks;
-}
-
-var defaultConfig$2 = {
- position: 'left',
-
- // label settings
- ticks: {
- callback: core_ticks.formatters.logarithmic
- }
-};
-
-// TODO(v3): change this to positiveOrDefault
-function nonNegativeOrDefault(value, defaultValue) {
- return helpers$1.isFinite(value) && value >= 0 ? value : defaultValue;
-}
-
-var scale_logarithmic = core_scale.extend({
- determineDataLimits: function() {
- var me = this;
- var opts = me.options;
- var chart = me.chart;
- var datasets = chart.data.datasets;
- var isHorizontal = me.isHorizontal();
- function IDMatches(meta) {
- return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
- }
- var datasetIndex, meta, value, data, i, ilen;
-
- // Calculate Range
- me.min = Number.POSITIVE_INFINITY;
- me.max = Number.NEGATIVE_INFINITY;
- me.minNotZero = Number.POSITIVE_INFINITY;
-
- var hasStacks = opts.stacked;
- if (hasStacks === undefined) {
- for (datasetIndex = 0; datasetIndex < datasets.length; datasetIndex++) {
- meta = chart.getDatasetMeta(datasetIndex);
- if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
- meta.stack !== undefined) {
- hasStacks = true;
- break;
- }
- }
- }
-
- if (opts.stacked || hasStacks) {
- var valuesPerStack = {};
-
- for (datasetIndex = 0; datasetIndex < datasets.length; datasetIndex++) {
- meta = chart.getDatasetMeta(datasetIndex);
- var key = [
- meta.type,
- // we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
- ((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
- meta.stack
- ].join('.');
-
- if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
- if (valuesPerStack[key] === undefined) {
- valuesPerStack[key] = [];
- }
-
- data = datasets[datasetIndex].data;
- for (i = 0, ilen = data.length; i < ilen; i++) {
- var values = valuesPerStack[key];
- value = me._parseValue(data[i]);
- // invalid, hidden and negative values are ignored
- if (isNaN(value.min) || isNaN(value.max) || meta.data[i].hidden || value.min < 0 || value.max < 0) {
- continue;
- }
- values[i] = values[i] || 0;
- values[i] += value.max;
- }
- }
- }
-
- helpers$1.each(valuesPerStack, function(valuesForType) {
- if (valuesForType.length > 0) {
- var minVal = helpers$1.min(valuesForType);
- var maxVal = helpers$1.max(valuesForType);
- me.min = Math.min(me.min, minVal);
- me.max = Math.max(me.max, maxVal);
- }
- });
-
- } else {
- for (datasetIndex = 0; datasetIndex < datasets.length; datasetIndex++) {
- meta = chart.getDatasetMeta(datasetIndex);
- if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
- data = datasets[datasetIndex].data;
- for (i = 0, ilen = data.length; i < ilen; i++) {
- value = me._parseValue(data[i]);
- // invalid, hidden and negative values are ignored
- if (isNaN(value.min) || isNaN(value.max) || meta.data[i].hidden || value.min < 0 || value.max < 0) {
- continue;
- }
-
- me.min = Math.min(value.min, me.min);
- me.max = Math.max(value.max, me.max);
-
- if (value.min !== 0) {
- me.minNotZero = Math.min(value.min, me.minNotZero);
- }
- }
- }
- }
- }
-
- me.min = helpers$1.isFinite(me.min) ? me.min : null;
- me.max = helpers$1.isFinite(me.max) ? me.max : null;
- me.minNotZero = helpers$1.isFinite(me.minNotZero) ? me.minNotZero : null;
-
- // Common base implementation to handle ticks.min, ticks.max
- this.handleTickRangeOptions();
- },
-
- handleTickRangeOptions: function() {
- var me = this;
- var tickOpts = me.options.ticks;
- var DEFAULT_MIN = 1;
- var DEFAULT_MAX = 10;
-
- me.min = nonNegativeOrDefault(tickOpts.min, me.min);
- me.max = nonNegativeOrDefault(tickOpts.max, me.max);
-
- if (me.min === me.max) {
- if (me.min !== 0 && me.min !== null) {
- me.min = Math.pow(10, Math.floor(log10(me.min)) - 1);
- me.max = Math.pow(10, Math.floor(log10(me.max)) + 1);
- } else {
- me.min = DEFAULT_MIN;
- me.max = DEFAULT_MAX;
- }
- }
- if (me.min === null) {
- me.min = Math.pow(10, Math.floor(log10(me.max)) - 1);
- }
- if (me.max === null) {
- me.max = me.min !== 0
- ? Math.pow(10, Math.floor(log10(me.min)) + 1)
- : DEFAULT_MAX;
- }
- if (me.minNotZero === null) {
- if (me.min > 0) {
- me.minNotZero = me.min;
- } else if (me.max < 1) {
- me.minNotZero = Math.pow(10, Math.floor(log10(me.max)));
- } else {
- me.minNotZero = DEFAULT_MIN;
- }
- }
- },
-
- buildTicks: function() {
- var me = this;
- var tickOpts = me.options.ticks;
- var reverse = !me.isHorizontal();
-
- var generationOptions = {
- min: nonNegativeOrDefault(tickOpts.min),
- max: nonNegativeOrDefault(tickOpts.max)
- };
- var ticks = me.ticks = generateTicks$1(generationOptions, me);
-
- // At this point, we need to update our max and min given the tick values since we have expanded the
- // range of the scale
- me.max = helpers$1.max(ticks);
- me.min = helpers$1.min(ticks);
-
- if (tickOpts.reverse) {
- reverse = !reverse;
- me.start = me.max;
- me.end = me.min;
- } else {
- me.start = me.min;
- me.end = me.max;
- }
- if (reverse) {
- ticks.reverse();
- }
- },
-
- convertTicksToLabels: function() {
- this.tickValues = this.ticks.slice();
-
- core_scale.prototype.convertTicksToLabels.call(this);
- },
-
- // Get the correct tooltip label
- getLabelForIndex: function(index, datasetIndex) {
- return this._getScaleLabel(this.chart.data.datasets[datasetIndex].data[index]);
- },
-
- getPixelForTick: function(index) {
- var ticks = this.tickValues;
- if (index < 0 || index > ticks.length - 1) {
- return null;
- }
- return this.getPixelForValue(ticks[index]);
- },
-
- /**
- * Returns the value of the first tick.
- * @param {number} value - The minimum not zero value.
- * @return {number} The first tick value.
- * @private
- */
- _getFirstTickValue: function(value) {
- var exp = Math.floor(log10(value));
- var significand = Math.floor(value / Math.pow(10, exp));
-
- return significand * Math.pow(10, exp);
- },
-
- _configure: function() {
- var me = this;
- var start = me.min;
- var offset = 0;
-
- core_scale.prototype._configure.call(me);
-
- if (start === 0) {
- start = me._getFirstTickValue(me.minNotZero);
- offset = valueOrDefault$b(me.options.ticks.fontSize, core_defaults.global.defaultFontSize) / me._length;
- }
-
- me._startValue = log10(start);
- me._valueOffset = offset;
- me._valueRange = (log10(me.max) - log10(start)) / (1 - offset);
- },
-
- getPixelForValue: function(value) {
- var me = this;
- var decimal = 0;
-
- value = +me.getRightValue(value);
-
- if (value > me.min && value > 0) {
- decimal = (log10(value) - me._startValue) / me._valueRange + me._valueOffset;
- }
- return me.getPixelForDecimal(decimal);
- },
-
- getValueForPixel: function(pixel) {
- var me = this;
- var decimal = me.getDecimalForPixel(pixel);
- return decimal === 0 && me.min === 0
- ? 0
- : Math.pow(10, me._startValue + (decimal - me._valueOffset) * me._valueRange);
- }
-});
-
-// INTERNAL: static default options, registered in src/index.js
-var _defaults$2 = defaultConfig$2;
-scale_logarithmic._defaults = _defaults$2;
-
-var valueOrDefault$c = helpers$1.valueOrDefault;
-var valueAtIndexOrDefault$1 = helpers$1.valueAtIndexOrDefault;
-var resolve$4 = helpers$1.options.resolve;
-
-var defaultConfig$3 = {
- display: true,
-
- // Boolean - Whether to animate scaling the chart from the centre
- animate: true,
- position: 'chartArea',
-
- angleLines: {
- display: true,
- color: 'rgba(0,0,0,0.1)',
- lineWidth: 1,
- borderDash: [],
- borderDashOffset: 0.0
- },
-
- gridLines: {
- circular: false
- },
-
- // label settings
- ticks: {
- // Boolean - Show a backdrop to the scale label
- showLabelBackdrop: true,
-
- // String - The colour of the label backdrop
- backdropColor: 'rgba(255,255,255,0.75)',
-
- // Number - The backdrop padding above & below the label in pixels
- backdropPaddingY: 2,
-
- // Number - The backdrop padding to the side of the label in pixels
- backdropPaddingX: 2,
-
- callback: core_ticks.formatters.linear
- },
-
- pointLabels: {
- // Boolean - if true, show point labels
- display: true,
-
- // Number - Point label font size in pixels
- fontSize: 10,
-
- // Function - Used to convert point labels
- callback: function(label) {
- return label;
- }
- }
-};
-
-function getTickBackdropHeight(opts) {
- var tickOpts = opts.ticks;
-
- if (tickOpts.display && opts.display) {
- return valueOrDefault$c(tickOpts.fontSize, core_defaults.global.defaultFontSize) + tickOpts.backdropPaddingY * 2;
- }
- return 0;
-}
-
-function measureLabelSize(ctx, lineHeight, label) {
- if (helpers$1.isArray(label)) {
- return {
- w: helpers$1.longestText(ctx, ctx.font, label),
- h: label.length * lineHeight
- };
- }
-
- return {
- w: ctx.measureText(label).width,
- h: lineHeight
- };
-}
-
-function determineLimits(angle, pos, size, min, max) {
- if (angle === min || angle === max) {
- return {
- start: pos - (size / 2),
- end: pos + (size / 2)
- };
- } else if (angle < min || angle > max) {
- return {
- start: pos - size,
- end: pos
- };
- }
-
- return {
- start: pos,
- end: pos + size
- };
-}
-
-/**
- * Helper function to fit a radial linear scale with point labels
- */
-function fitWithPointLabels(scale) {
-
- // Right, this is really confusing and there is a lot of maths going on here
- // The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
- //
- // Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
- //
- // Solution:
- //
- // We assume the radius of the polygon is half the size of the canvas at first
- // at each index we check if the text overlaps.
- //
- // Where it does, we store that angle and that index.
- //
- // After finding the largest index and angle we calculate how much we need to remove
- // from the shape radius to move the point inwards by that x.
- //
- // We average the left and right distances to get the maximum shape radius that can fit in the box
- // along with labels.
- //
- // Once we have that, we can find the centre point for the chart, by taking the x text protrusion
- // on each side, removing that from the size, halving it and adding the left x protrusion width.
- //
- // This will mean we have a shape fitted to the canvas, as large as it can be with the labels
- // and position it in the most space efficient manner
- //
- // https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
-
- var plFont = helpers$1.options._parseFont(scale.options.pointLabels);
-
- // Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
- // Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
- var furthestLimits = {
- l: 0,
- r: scale.width,
- t: 0,
- b: scale.height - scale.paddingTop
- };
- var furthestAngles = {};
- var i, textSize, pointPosition;
-
- scale.ctx.font = plFont.string;
- scale._pointLabelSizes = [];
-
- var valueCount = scale.chart.data.labels.length;
- for (i = 0; i < valueCount; i++) {
- pointPosition = scale.getPointPosition(i, scale.drawingArea + 5);
- textSize = measureLabelSize(scale.ctx, plFont.lineHeight, scale.pointLabels[i]);
- scale._pointLabelSizes[i] = textSize;
-
- // Add quarter circle to make degree 0 mean top of circle
- var angleRadians = scale.getIndexAngle(i);
- var angle = helpers$1.toDegrees(angleRadians) % 360;
- var hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180);
- var vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270);
-
- if (hLimits.start < furthestLimits.l) {
- furthestLimits.l = hLimits.start;
- furthestAngles.l = angleRadians;
- }
-
- if (hLimits.end > furthestLimits.r) {
- furthestLimits.r = hLimits.end;
- furthestAngles.r = angleRadians;
- }
-
- if (vLimits.start < furthestLimits.t) {
- furthestLimits.t = vLimits.start;
- furthestAngles.t = angleRadians;
- }
-
- if (vLimits.end > furthestLimits.b) {
- furthestLimits.b = vLimits.end;
- furthestAngles.b = angleRadians;
- }
- }
-
- scale.setReductions(scale.drawingArea, furthestLimits, furthestAngles);
-}
-
-function getTextAlignForAngle(angle) {
- if (angle === 0 || angle === 180) {
- return 'center';
- } else if (angle < 180) {
- return 'left';
- }
-
- return 'right';
-}
-
-function fillText(ctx, text, position, lineHeight) {
- var y = position.y + lineHeight / 2;
- var i, ilen;
-
- if (helpers$1.isArray(text)) {
- for (i = 0, ilen = text.length; i < ilen; ++i) {
- ctx.fillText(text[i], position.x, y);
- y += lineHeight;
- }
- } else {
- ctx.fillText(text, position.x, y);
- }
-}
-
-function adjustPointPositionForLabelHeight(angle, textSize, position) {
- if (angle === 90 || angle === 270) {
- position.y -= (textSize.h / 2);
- } else if (angle > 270 || angle < 90) {
- position.y -= textSize.h;
- }
-}
-
-function drawPointLabels(scale) {
- var ctx = scale.ctx;
- var opts = scale.options;
- var pointLabelOpts = opts.pointLabels;
- var tickBackdropHeight = getTickBackdropHeight(opts);
- var outerDistance = scale.getDistanceFromCenterForValue(opts.ticks.reverse ? scale.min : scale.max);
- var plFont = helpers$1.options._parseFont(pointLabelOpts);
-
- ctx.save();
-
- ctx.font = plFont.string;
- ctx.textBaseline = 'middle';
-
- for (var i = scale.chart.data.labels.length - 1; i >= 0; i--) {
- // Extra pixels out for some label spacing
- var extra = (i === 0 ? tickBackdropHeight / 2 : 0);
- var pointLabelPosition = scale.getPointPosition(i, outerDistance + extra + 5);
-
- // Keep this in loop since we may support array properties here
- var pointLabelFontColor = valueAtIndexOrDefault$1(pointLabelOpts.fontColor, i, core_defaults.global.defaultFontColor);
- ctx.fillStyle = pointLabelFontColor;
-
- var angleRadians = scale.getIndexAngle(i);
- var angle = helpers$1.toDegrees(angleRadians);
- ctx.textAlign = getTextAlignForAngle(angle);
- adjustPointPositionForLabelHeight(angle, scale._pointLabelSizes[i], pointLabelPosition);
- fillText(ctx, scale.pointLabels[i], pointLabelPosition, plFont.lineHeight);
- }
- ctx.restore();
-}
-
-function drawRadiusLine(scale, gridLineOpts, radius, index) {
- var ctx = scale.ctx;
- var circular = gridLineOpts.circular;
- var valueCount = scale.chart.data.labels.length;
- var lineColor = valueAtIndexOrDefault$1(gridLineOpts.color, index - 1);
- var lineWidth = valueAtIndexOrDefault$1(gridLineOpts.lineWidth, index - 1);
- var pointPosition;
-
- if ((!circular && !valueCount) || !lineColor || !lineWidth) {
- return;
- }
-
- ctx.save();
- ctx.strokeStyle = lineColor;
- ctx.lineWidth = lineWidth;
- if (ctx.setLineDash) {
- ctx.setLineDash(gridLineOpts.borderDash || []);
- ctx.lineDashOffset = gridLineOpts.borderDashOffset || 0.0;
- }
-
- ctx.beginPath();
- if (circular) {
- // Draw circular arcs between the points
- ctx.arc(scale.xCenter, scale.yCenter, radius, 0, Math.PI * 2);
- } else {
- // Draw straight lines connecting each index
- pointPosition = scale.getPointPosition(0, radius);
- ctx.moveTo(pointPosition.x, pointPosition.y);
-
- for (var i = 1; i < valueCount; i++) {
- pointPosition = scale.getPointPosition(i, radius);
- ctx.lineTo(pointPosition.x, pointPosition.y);
- }
- }
- ctx.closePath();
- ctx.stroke();
- ctx.restore();
-}
-
-function numberOrZero(param) {
- return helpers$1.isNumber(param) ? param : 0;
-}
-
-var scale_radialLinear = scale_linearbase.extend({
- setDimensions: function() {
- var me = this;
-
- // Set the unconstrained dimension before label rotation
- me.width = me.maxWidth;
- me.height = me.maxHeight;
- me.paddingTop = getTickBackdropHeight(me.options) / 2;
- me.xCenter = Math.floor(me.width / 2);
- me.yCenter = Math.floor((me.height - me.paddingTop) / 2);
- me.drawingArea = Math.min(me.height - me.paddingTop, me.width) / 2;
- },
-
- determineDataLimits: function() {
- var me = this;
- var chart = me.chart;
- var min = Number.POSITIVE_INFINITY;
- var max = Number.NEGATIVE_INFINITY;
-
- helpers$1.each(chart.data.datasets, function(dataset, datasetIndex) {
- if (chart.isDatasetVisible(datasetIndex)) {
- var meta = chart.getDatasetMeta(datasetIndex);
-
- helpers$1.each(dataset.data, function(rawValue, index) {
- var value = +me.getRightValue(rawValue);
- if (isNaN(value) || meta.data[index].hidden) {
- return;
- }
-
- min = Math.min(value, min);
- max = Math.max(value, max);
- });
- }
- });
-
- me.min = (min === Number.POSITIVE_INFINITY ? 0 : min);
- me.max = (max === Number.NEGATIVE_INFINITY ? 0 : max);
-
- // Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
- me.handleTickRangeOptions();
- },
-
- // Returns the maximum number of ticks based on the scale dimension
- _computeTickLimit: function() {
- return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options));
- },
-
- convertTicksToLabels: function() {
- var me = this;
-
- scale_linearbase.prototype.convertTicksToLabels.call(me);
-
- // Point labels
- me.pointLabels = me.chart.data.labels.map(function() {
- var label = helpers$1.callback(me.options.pointLabels.callback, arguments, me);
- return label || label === 0 ? label : '';
- });
- },
-
- getLabelForIndex: function(index, datasetIndex) {
- return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
- },
-
- fit: function() {
- var me = this;
- var opts = me.options;
-
- if (opts.display && opts.pointLabels.display) {
- fitWithPointLabels(me);
- } else {
- me.setCenterPoint(0, 0, 0, 0);
- }
- },
-
- /**
- * Set radius reductions and determine new radius and center point
- * @private
- */
- setReductions: function(largestPossibleRadius, furthestLimits, furthestAngles) {
- var me = this;
- var radiusReductionLeft = furthestLimits.l / Math.sin(furthestAngles.l);
- var radiusReductionRight = Math.max(furthestLimits.r - me.width, 0) / Math.sin(furthestAngles.r);
- var radiusReductionTop = -furthestLimits.t / Math.cos(furthestAngles.t);
- var radiusReductionBottom = -Math.max(furthestLimits.b - (me.height - me.paddingTop), 0) / Math.cos(furthestAngles.b);
-
- radiusReductionLeft = numberOrZero(radiusReductionLeft);
- radiusReductionRight = numberOrZero(radiusReductionRight);
- radiusReductionTop = numberOrZero(radiusReductionTop);
- radiusReductionBottom = numberOrZero(radiusReductionBottom);
-
- me.drawingArea = Math.min(
- Math.floor(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2),
- Math.floor(largestPossibleRadius - (radiusReductionTop + radiusReductionBottom) / 2));
- me.setCenterPoint(radiusReductionLeft, radiusReductionRight, radiusReductionTop, radiusReductionBottom);
- },
-
- setCenterPoint: function(leftMovement, rightMovement, topMovement, bottomMovement) {
- var me = this;
- var maxRight = me.width - rightMovement - me.drawingArea;
- var maxLeft = leftMovement + me.drawingArea;
- var maxTop = topMovement + me.drawingArea;
- var maxBottom = (me.height - me.paddingTop) - bottomMovement - me.drawingArea;
-
- me.xCenter = Math.floor(((maxLeft + maxRight) / 2) + me.left);
- me.yCenter = Math.floor(((maxTop + maxBottom) / 2) + me.top + me.paddingTop);
- },
-
- getIndexAngle: function(index) {
- var chart = this.chart;
- var angleMultiplier = 360 / chart.data.labels.length;
- var options = chart.options || {};
- var startAngle = options.startAngle || 0;
-
- // Start from the top instead of right, so remove a quarter of the circle
- var angle = (index * angleMultiplier + startAngle) % 360;
-
- return (angle < 0 ? angle + 360 : angle) * Math.PI * 2 / 360;
- },
-
- getDistanceFromCenterForValue: function(value) {
- var me = this;
-
- if (helpers$1.isNullOrUndef(value)) {
- return NaN;
- }
-
- // Take into account half font size + the yPadding of the top value
- var scalingFactor = me.drawingArea / (me.max - me.min);
- if (me.options.ticks.reverse) {
- return (me.max - value) * scalingFactor;
- }
- return (value - me.min) * scalingFactor;
- },
-
- getPointPosition: function(index, distanceFromCenter) {
- var me = this;
- var thisAngle = me.getIndexAngle(index) - (Math.PI / 2);
- return {
- x: Math.cos(thisAngle) * distanceFromCenter + me.xCenter,
- y: Math.sin(thisAngle) * distanceFromCenter + me.yCenter
- };
- },
-
- getPointPositionForValue: function(index, value) {
- return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));
- },
-
- getBasePosition: function(index) {
- var me = this;
- var min = me.min;
- var max = me.max;
-
- return me.getPointPositionForValue(index || 0,
- me.beginAtZero ? 0 :
- min < 0 && max < 0 ? max :
- min > 0 && max > 0 ? min :
- 0);
- },
-
- /**
- * @private
- */
- _drawGrid: function() {
- var me = this;
- var ctx = me.ctx;
- var opts = me.options;
- var gridLineOpts = opts.gridLines;
- var angleLineOpts = opts.angleLines;
- var lineWidth = valueOrDefault$c(angleLineOpts.lineWidth, gridLineOpts.lineWidth);
- var lineColor = valueOrDefault$c(angleLineOpts.color, gridLineOpts.color);
- var i, offset, position;
-
- if (opts.pointLabels.display) {
- drawPointLabels(me);
- }
-
- if (gridLineOpts.display) {
- helpers$1.each(me.ticks, function(label, index) {
- if (index !== 0) {
- offset = me.getDistanceFromCenterForValue(me.ticksAsNumbers[index]);
- drawRadiusLine(me, gridLineOpts, offset, index);
- }
- });
- }
-
- if (angleLineOpts.display && lineWidth && lineColor) {
- ctx.save();
- ctx.lineWidth = lineWidth;
- ctx.strokeStyle = lineColor;
- if (ctx.setLineDash) {
- ctx.setLineDash(resolve$4([angleLineOpts.borderDash, gridLineOpts.borderDash, []]));
- ctx.lineDashOffset = resolve$4([angleLineOpts.borderDashOffset, gridLineOpts.borderDashOffset, 0.0]);
- }
-
- for (i = me.chart.data.labels.length - 1; i >= 0; i--) {
- offset = me.getDistanceFromCenterForValue(opts.ticks.reverse ? me.min : me.max);
- position = me.getPointPosition(i, offset);
- ctx.beginPath();
- ctx.moveTo(me.xCenter, me.yCenter);
- ctx.lineTo(position.x, position.y);
- ctx.stroke();
- }
-
- ctx.restore();
- }
- },
-
- /**
- * @private
- */
- _drawLabels: function() {
- var me = this;
- var ctx = me.ctx;
- var opts = me.options;
- var tickOpts = opts.ticks;
-
- if (!tickOpts.display) {
- return;
- }
-
- var startAngle = me.getIndexAngle(0);
- var tickFont = helpers$1.options._parseFont(tickOpts);
- var tickFontColor = valueOrDefault$c(tickOpts.fontColor, core_defaults.global.defaultFontColor);
- var offset, width;
-
- ctx.save();
- ctx.font = tickFont.string;
- ctx.translate(me.xCenter, me.yCenter);
- ctx.rotate(startAngle);
- ctx.textAlign = 'center';
- ctx.textBaseline = 'middle';
-
- helpers$1.each(me.ticks, function(label, index) {
- if (index === 0 && !tickOpts.reverse) {
- return;
- }
-
- offset = me.getDistanceFromCenterForValue(me.ticksAsNumbers[index]);
-
- if (tickOpts.showLabelBackdrop) {
- width = ctx.measureText(label).width;
- ctx.fillStyle = tickOpts.backdropColor;
-
- ctx.fillRect(
- -width / 2 - tickOpts.backdropPaddingX,
- -offset - tickFont.size / 2 - tickOpts.backdropPaddingY,
- width + tickOpts.backdropPaddingX * 2,
- tickFont.size + tickOpts.backdropPaddingY * 2
- );
- }
-
- ctx.fillStyle = tickFontColor;
- ctx.fillText(label, 0, -offset);
- });
-
- ctx.restore();
- },
-
- /**
- * @private
- */
- _drawTitle: helpers$1.noop
-});
-
-// INTERNAL: static default options, registered in src/index.js
-var _defaults$3 = defaultConfig$3;
-scale_radialLinear._defaults = _defaults$3;
-
-var deprecated$1 = helpers$1._deprecated;
-var resolve$5 = helpers$1.options.resolve;
-var valueOrDefault$d = helpers$1.valueOrDefault;
-
-// Integer constants are from the ES6 spec.
-var MIN_INTEGER = Number.MIN_SAFE_INTEGER || -9007199254740991;
-var MAX_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;
-
-var INTERVALS = {
- millisecond: {
- common: true,
- size: 1,
- steps: 1000
- },
- second: {
- common: true,
- size: 1000,
- steps: 60
- },
- minute: {
- common: true,
- size: 60000,
- steps: 60
- },
- hour: {
- common: true,
- size: 3600000,
- steps: 24
- },
- day: {
- common: true,
- size: 86400000,
- steps: 30
- },
- week: {
- common: false,
- size: 604800000,
- steps: 4
- },
- month: {
- common: true,
- size: 2.628e9,
- steps: 12
- },
- quarter: {
- common: false,
- size: 7.884e9,
- steps: 4
- },
- year: {
- common: true,
- size: 3.154e10
- }
-};
-
-var UNITS = Object.keys(INTERVALS);
-
-function sorter(a, b) {
- return a - b;
-}
-
-function arrayUnique(items) {
- var hash = {};
- var out = [];
- var i, ilen, item;
-
- for (i = 0, ilen = items.length; i < ilen; ++i) {
- item = items[i];
- if (!hash[item]) {
- hash[item] = true;
- out.push(item);
- }
- }
-
- return out;
-}
-
-function getMin(options) {
- return helpers$1.valueOrDefault(options.time.min, options.ticks.min);
-}
-
-function getMax(options) {
- return helpers$1.valueOrDefault(options.time.max, options.ticks.max);
-}
-
-/**
- * Returns an array of {time, pos} objects used to interpolate a specific `time` or position
- * (`pos`) on the scale, by searching entries before and after the requested value. `pos` is
- * a decimal between 0 and 1: 0 being the start of the scale (left or top) and 1 the other
- * extremity (left + width or top + height). Note that it would be more optimized to directly
- * store pre-computed pixels, but the scale dimensions are not guaranteed at the time we need
- * to create the lookup table. The table ALWAYS contains at least two items: min and max.
- *
- * @param {number[]} timestamps - timestamps sorted from lowest to highest.
- * @param {string} distribution - If 'linear', timestamps will be spread linearly along the min
- * and max range, so basically, the table will contains only two items: {min, 0} and {max, 1}.
- * If 'series', timestamps will be positioned at the same distance from each other. In this
- * case, only timestamps that break the time linearity are registered, meaning that in the
- * best case, all timestamps are linear, the table contains only min and max.
- */
-function buildLookupTable(timestamps, min, max, distribution) {
- if (distribution === 'linear' || !timestamps.length) {
- return [
- {time: min, pos: 0},
- {time: max, pos: 1}
- ];
- }
-
- var table = [];
- var items = [min];
- var i, ilen, prev, curr, next;
-
- for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
- curr = timestamps[i];
- if (curr > min && curr < max) {
- items.push(curr);
- }
- }
-
- items.push(max);
-
- for (i = 0, ilen = items.length; i < ilen; ++i) {
- next = items[i + 1];
- prev = items[i - 1];
- curr = items[i];
-
- // only add points that breaks the scale linearity
- if (prev === undefined || next === undefined || Math.round((next + prev) / 2) !== curr) {
- table.push({time: curr, pos: i / (ilen - 1)});
- }
- }
-
- return table;
-}
-
-// @see adapted from https://www.anujgakhar.com/2014/03/01/binary-search-in-javascript/
-function lookup(table, key, value) {
- var lo = 0;
- var hi = table.length - 1;
- var mid, i0, i1;
-
- while (lo >= 0 && lo <= hi) {
- mid = (lo + hi) >> 1;
- i0 = table[mid - 1] || null;
- i1 = table[mid];
-
- if (!i0) {
- // given value is outside table (before first item)
- return {lo: null, hi: i1};
- } else if (i1[key] < value) {
- lo = mid + 1;
- } else if (i0[key] > value) {
- hi = mid - 1;
- } else {
- return {lo: i0, hi: i1};
- }
- }
-
- // given value is outside table (after last item)
- return {lo: i1, hi: null};
-}
-
-/**
- * Linearly interpolates the given source `value` using the table items `skey` values and
- * returns the associated `tkey` value. For example, interpolate(table, 'time', 42, 'pos')
- * returns the position for a timestamp equal to 42. If value is out of bounds, values at
- * index [0, 1] or [n - 1, n] are used for the interpolation.
- */
-function interpolate$1(table, skey, sval, tkey) {
- var range = lookup(table, skey, sval);
-
- // Note: the lookup table ALWAYS contains at least 2 items (min and max)
- var prev = !range.lo ? table[0] : !range.hi ? table[table.length - 2] : range.lo;
- var next = !range.lo ? table[1] : !range.hi ? table[table.length - 1] : range.hi;
-
- var span = next[skey] - prev[skey];
- var ratio = span ? (sval - prev[skey]) / span : 0;
- var offset = (next[tkey] - prev[tkey]) * ratio;
-
- return prev[tkey] + offset;
-}
-
-function toTimestamp(scale, input) {
- var adapter = scale._adapter;
- var options = scale.options.time;
- var parser = options.parser;
- var format = parser || options.format;
- var value = input;
-
- if (typeof parser === 'function') {
- value = parser(value);
- }
-
- // Only parse if its not a timestamp already
- if (!helpers$1.isFinite(value)) {
- value = typeof format === 'string'
- ? adapter.parse(value, format)
- : adapter.parse(value);
- }
-
- if (value !== null) {
- return +value;
- }
-
- // Labels are in an incompatible format and no `parser` has been provided.
- // The user might still use the deprecated `format` option for parsing.
- if (!parser && typeof format === 'function') {
- value = format(input);
-
- // `format` could return something else than a timestamp, if so, parse it
- if (!helpers$1.isFinite(value)) {
- value = adapter.parse(value);
- }
- }
-
- return value;
-}
-
-function parse(scale, input) {
- if (helpers$1.isNullOrUndef(input)) {
- return null;
- }
-
- var options = scale.options.time;
- var value = toTimestamp(scale, scale.getRightValue(input));
- if (value === null) {
- return value;
- }
-
- if (options.round) {
- value = +scale._adapter.startOf(value, options.round);
- }
-
- return value;
-}
-
-/**
- * Figures out what unit results in an appropriate number of auto-generated ticks
- */
-function determineUnitForAutoTicks(minUnit, min, max, capacity) {
- var ilen = UNITS.length;
- var i, interval, factor;
-
- for (i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) {
- interval = INTERVALS[UNITS[i]];
- factor = interval.steps ? interval.steps : MAX_INTEGER;
-
- if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) {
- return UNITS[i];
- }
- }
-
- return UNITS[ilen - 1];
-}
-
-/**
- * Figures out what unit to format a set of ticks with
- */
-function determineUnitForFormatting(scale, numTicks, minUnit, min, max) {
- var i, unit;
-
- for (i = UNITS.length - 1; i >= UNITS.indexOf(minUnit); i--) {
- unit = UNITS[i];
- if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= numTicks - 1) {
- return unit;
- }
- }
-
- return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0];
-}
-
-function determineMajorUnit(unit) {
- for (var i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) {
- if (INTERVALS[UNITS[i]].common) {
- return UNITS[i];
- }
- }
-}
-
-/**
- * Generates a maximum of `capacity` timestamps between min and max, rounded to the
- * `minor` unit using the given scale time `options`.
- * Important: this method can return ticks outside the min and max range, it's the
- * responsibility of the calling code to clamp values if needed.
- */
-function generate(scale, min, max, capacity) {
- var adapter = scale._adapter;
- var options = scale.options;
- var timeOpts = options.time;
- var minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, capacity);
- var stepSize = resolve$5([timeOpts.stepSize, timeOpts.unitStepSize, 1]);
- var weekday = minor === 'week' ? timeOpts.isoWeekday : false;
- var first = min;
- var ticks = [];
- var time;
-
- // For 'week' unit, handle the first day of week option
- if (weekday) {
- first = +adapter.startOf(first, 'isoWeek', weekday);
- }
-
- // Align first ticks on unit
- first = +adapter.startOf(first, weekday ? 'day' : minor);
-
- // Prevent browser from freezing in case user options request millions of milliseconds
- if (adapter.diff(max, min, minor) > 100000 * stepSize) {
- throw min + ' and ' + max + ' are too far apart with stepSize of ' + stepSize + ' ' + minor;
- }
-
- for (time = first; time < max; time = +adapter.add(time, stepSize, minor)) {
- ticks.push(time);
- }
-
- if (time === max || options.bounds === 'ticks') {
- ticks.push(time);
- }
-
- return ticks;
-}
-
-/**
- * Returns the start and end offsets from edges in the form of {start, end}
- * where each value is a relative width to the scale and ranges between 0 and 1.
- * They add extra margins on the both sides by scaling down the original scale.
- * Offsets are added when the `offset` option is true.
- */
-function computeOffsets(table, ticks, min, max, options) {
- var start = 0;
- var end = 0;
- var first, last;
-
- if (options.offset && ticks.length) {
- first = interpolate$1(table, 'time', ticks[0], 'pos');
- if (ticks.length === 1) {
- start = 1 - first;
- } else {
- start = (interpolate$1(table, 'time', ticks[1], 'pos') - first) / 2;
- }
- last = interpolate$1(table, 'time', ticks[ticks.length - 1], 'pos');
- if (ticks.length === 1) {
- end = last;
- } else {
- end = (last - interpolate$1(table, 'time', ticks[ticks.length - 2], 'pos')) / 2;
- }
- }
-
- return {start: start, end: end, factor: 1 / (start + 1 + end)};
-}
-
-function setMajorTicks(scale, ticks, map, majorUnit) {
- var adapter = scale._adapter;
- var first = +adapter.startOf(ticks[0].value, majorUnit);
- var last = ticks[ticks.length - 1].value;
- var major, index;
-
- for (major = first; major <= last; major = +adapter.add(major, 1, majorUnit)) {
- index = map[major];
- if (index >= 0) {
- ticks[index].major = true;
- }
- }
- return ticks;
-}
-
-function ticksFromTimestamps(scale, values, majorUnit) {
- var ticks = [];
- var map = {};
- var ilen = values.length;
- var i, value;
-
- for (i = 0; i < ilen; ++i) {
- value = values[i];
- map[value] = i;
-
- ticks.push({
- value: value,
- major: false
- });
- }
-
- // We set the major ticks separately from the above loop because calling startOf for every tick
- // is expensive when there is a large number of ticks
- return (ilen === 0 || !majorUnit) ? ticks : setMajorTicks(scale, ticks, map, majorUnit);
-}
-
-var defaultConfig$4 = {
- position: 'bottom',
-
- /**
- * Data distribution along the scale:
- * - 'linear': data are spread according to their time (distances can vary),
- * - 'series': data are spread at the same distance from each other.
- * @see https://github.com/chartjs/Chart.js/pull/4507
- * @since 2.7.0
- */
- distribution: 'linear',
-
- /**
- * Scale boundary strategy (bypassed by min/max time options)
- * - `data`: make sure data are fully visible, ticks outside are removed
- * - `ticks`: make sure ticks are fully visible, data outside are truncated
- * @see https://github.com/chartjs/Chart.js/pull/4556
- * @since 2.7.0
- */
- bounds: 'data',
-
- adapters: {},
- time: {
- parser: false, // false == a pattern string from https://momentjs.com/docs/#/parsing/string-format/ or a custom callback that converts its argument to a moment
- unit: false, // false == automatic or override with week, month, year, etc.
- round: false, // none, or override with week, month, year, etc.
- displayFormat: false, // DEPRECATED
- isoWeekday: false, // override week start day - see https://momentjs.com/docs/#/get-set/iso-weekday/
- minUnit: 'millisecond',
- displayFormats: {}
- },
- ticks: {
- autoSkip: false,
-
- /**
- * Ticks generation input values:
- * - 'auto': generates "optimal" ticks based on scale size and time options.
- * - 'data': generates ticks from data (including labels from data {t|x|y} objects).
- * - 'labels': generates ticks from user given `data.labels` values ONLY.
- * @see https://github.com/chartjs/Chart.js/pull/4507
- * @since 2.7.0
- */
- source: 'auto',
-
- major: {
- enabled: false
- }
- }
-};
-
-var scale_time = core_scale.extend({
- initialize: function() {
- this.mergeTicksOptions();
- core_scale.prototype.initialize.call(this);
- },
-
- update: function() {
- var me = this;
- var options = me.options;
- var time = options.time || (options.time = {});
- var adapter = me._adapter = new core_adapters._date(options.adapters.date);
-
- // DEPRECATIONS: output a message only one time per update
- deprecated$1('time scale', time.format, 'time.format', 'time.parser');
- deprecated$1('time scale', time.min, 'time.min', 'ticks.min');
- deprecated$1('time scale', time.max, 'time.max', 'ticks.max');
-
- // Backward compatibility: before introducing adapter, `displayFormats` was
- // supposed to contain *all* unit/string pairs but this can't be resolved
- // when loading the scale (adapters are loaded afterward), so let's populate
- // missing formats on update
- helpers$1.mergeIf(time.displayFormats, adapter.formats());
-
- return core_scale.prototype.update.apply(me, arguments);
- },
-
- /**
- * Allows data to be referenced via 't' attribute
- */
- getRightValue: function(rawValue) {
- if (rawValue && rawValue.t !== undefined) {
- rawValue = rawValue.t;
- }
- return core_scale.prototype.getRightValue.call(this, rawValue);
- },
-
- determineDataLimits: function() {
- var me = this;
- var chart = me.chart;
- var adapter = me._adapter;
- var options = me.options;
- var unit = options.time.unit || 'day';
- var min = MAX_INTEGER;
- var max = MIN_INTEGER;
- var timestamps = [];
- var datasets = [];
- var labels = [];
- var i, j, ilen, jlen, data, timestamp, labelsAdded;
- var dataLabels = me._getLabels();
-
- for (i = 0, ilen = dataLabels.length; i < ilen; ++i) {
- labels.push(parse(me, dataLabels[i]));
- }
-
- for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
- if (chart.isDatasetVisible(i)) {
- data = chart.data.datasets[i].data;
-
- // Let's consider that all data have the same format.
- if (helpers$1.isObject(data[0])) {
- datasets[i] = [];
-
- for (j = 0, jlen = data.length; j < jlen; ++j) {
- timestamp = parse(me, data[j]);
- timestamps.push(timestamp);
- datasets[i][j] = timestamp;
- }
- } else {
- datasets[i] = labels.slice(0);
- if (!labelsAdded) {
- timestamps = timestamps.concat(labels);
- labelsAdded = true;
- }
- }
- } else {
- datasets[i] = [];
- }
- }
-
- if (labels.length) {
- min = Math.min(min, labels[0]);
- max = Math.max(max, labels[labels.length - 1]);
- }
-
- if (timestamps.length) {
- timestamps = ilen > 1 ? arrayUnique(timestamps).sort(sorter) : timestamps.sort(sorter);
- min = Math.min(min, timestamps[0]);
- max = Math.max(max, timestamps[timestamps.length - 1]);
- }
-
- min = parse(me, getMin(options)) || min;
- max = parse(me, getMax(options)) || max;
-
- // In case there is no valid min/max, set limits based on unit time option
- min = min === MAX_INTEGER ? +adapter.startOf(Date.now(), unit) : min;
- max = max === MIN_INTEGER ? +adapter.endOf(Date.now(), unit) + 1 : max;
-
- // Make sure that max is strictly higher than min (required by the lookup table)
- me.min = Math.min(min, max);
- me.max = Math.max(min + 1, max);
-
- // PRIVATE
- me._table = [];
- me._timestamps = {
- data: timestamps,
- datasets: datasets,
- labels: labels
- };
- },
-
- buildTicks: function() {
- var me = this;
- var min = me.min;
- var max = me.max;
- var options = me.options;
- var tickOpts = options.ticks;
- var timeOpts = options.time;
- var timestamps = me._timestamps;
- var ticks = [];
- var capacity = me.getLabelCapacity(min);
- var source = tickOpts.source;
- var distribution = options.distribution;
- var i, ilen, timestamp;
-
- if (source === 'data' || (source === 'auto' && distribution === 'series')) {
- timestamps = timestamps.data;
- } else if (source === 'labels') {
- timestamps = timestamps.labels;
- } else {
- timestamps = generate(me, min, max, capacity);
- }
-
- if (options.bounds === 'ticks' && timestamps.length) {
- min = timestamps[0];
- max = timestamps[timestamps.length - 1];
- }
-
- // Enforce limits with user min/max options
- min = parse(me, getMin(options)) || min;
- max = parse(me, getMax(options)) || max;
-
- // Remove ticks outside the min/max range
- for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
- timestamp = timestamps[i];
- if (timestamp >= min && timestamp <= max) {
- ticks.push(timestamp);
- }
- }
-
- me.min = min;
- me.max = max;
-
- // PRIVATE
- // determineUnitForFormatting relies on the number of ticks so we don't use it when
- // autoSkip is enabled because we don't yet know what the final number of ticks will be
- me._unit = timeOpts.unit || (tickOpts.autoSkip
- ? determineUnitForAutoTicks(timeOpts.minUnit, me.min, me.max, capacity)
- : determineUnitForFormatting(me, ticks.length, timeOpts.minUnit, me.min, me.max));
- me._majorUnit = !tickOpts.major.enabled || me._unit === 'year' ? undefined
- : determineMajorUnit(me._unit);
- me._table = buildLookupTable(me._timestamps.data, min, max, distribution);
- me._offsets = computeOffsets(me._table, ticks, min, max, options);
-
- if (tickOpts.reverse) {
- ticks.reverse();
- }
-
- return ticksFromTimestamps(me, ticks, me._majorUnit);
- },
-
- getLabelForIndex: function(index, datasetIndex) {
- var me = this;
- var adapter = me._adapter;
- var data = me.chart.data;
- var timeOpts = me.options.time;
- var label = data.labels && index < data.labels.length ? data.labels[index] : '';
- var value = data.datasets[datasetIndex].data[index];
-
- if (helpers$1.isObject(value)) {
- label = me.getRightValue(value);
- }
- if (timeOpts.tooltipFormat) {
- return adapter.format(toTimestamp(me, label), timeOpts.tooltipFormat);
- }
- if (typeof label === 'string') {
- return label;
- }
- return adapter.format(toTimestamp(me, label), timeOpts.displayFormats.datetime);
- },
-
- /**
- * Function to format an individual tick mark
- * @private
- */
- tickFormatFunction: function(time, index, ticks, format) {
- var me = this;
- var adapter = me._adapter;
- var options = me.options;
- var formats = options.time.displayFormats;
- var minorFormat = formats[me._unit];
- var majorUnit = me._majorUnit;
- var majorFormat = formats[majorUnit];
- var tick = ticks[index];
- var tickOpts = options.ticks;
- var major = majorUnit && majorFormat && tick && tick.major;
- var label = adapter.format(time, format ? format : major ? majorFormat : minorFormat);
- var nestedTickOpts = major ? tickOpts.major : tickOpts.minor;
- var formatter = resolve$5([
- nestedTickOpts.callback,
- nestedTickOpts.userCallback,
- tickOpts.callback,
- tickOpts.userCallback
- ]);
-
- return formatter ? formatter(label, index, ticks) : label;
- },
-
- convertTicksToLabels: function(ticks) {
- var labels = [];
- var i, ilen;
-
- for (i = 0, ilen = ticks.length; i < ilen; ++i) {
- labels.push(this.tickFormatFunction(ticks[i].value, i, ticks));
- }
-
- return labels;
- },
-
- /**
- * @private
- */
- getPixelForOffset: function(time) {
- var me = this;
- var offsets = me._offsets;
- var pos = interpolate$1(me._table, 'time', time, 'pos');
- return me.getPixelForDecimal((offsets.start + pos) * offsets.factor);
- },
-
- getPixelForValue: function(value, index, datasetIndex) {
- var me = this;
- var time = null;
-
- if (index !== undefined && datasetIndex !== undefined) {
- time = me._timestamps.datasets[datasetIndex][index];
- }
-
- if (time === null) {
- time = parse(me, value);
- }
-
- if (time !== null) {
- return me.getPixelForOffset(time);
- }
- },
-
- getPixelForTick: function(index) {
- var ticks = this.getTicks();
- return index >= 0 && index < ticks.length ?
- this.getPixelForOffset(ticks[index].value) :
- null;
- },
-
- getValueForPixel: function(pixel) {
- var me = this;
- var offsets = me._offsets;
- var pos = me.getDecimalForPixel(pixel) / offsets.factor - offsets.end;
- var time = interpolate$1(me._table, 'pos', pos, 'time');
-
- // DEPRECATION, we should return time directly
- return me._adapter._create(time);
- },
-
- /**
- * @private
- */
- _getLabelSize: function(label) {
- var me = this;
- var ticksOpts = me.options.ticks;
- var tickLabelWidth = me.ctx.measureText(label).width;
- var angle = helpers$1.toRadians(me.isHorizontal() ? ticksOpts.maxRotation : ticksOpts.minRotation);
- var cosRotation = Math.cos(angle);
- var sinRotation = Math.sin(angle);
- var tickFontSize = valueOrDefault$d(ticksOpts.fontSize, core_defaults.global.defaultFontSize);
-
- return {
- w: (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation),
- h: (tickLabelWidth * sinRotation) + (tickFontSize * cosRotation)
- };
- },
-
- /**
- * Crude approximation of what the label width might be
- * @private
- */
- getLabelWidth: function(label) {
- return this._getLabelSize(label).w;
- },
-
- /**
- * @private
- */
- getLabelCapacity: function(exampleTime) {
- var me = this;
- var timeOpts = me.options.time;
- var displayFormats = timeOpts.displayFormats;
-
- // pick the longest format (milliseconds) for guestimation
- var format = displayFormats[timeOpts.unit] || displayFormats.millisecond;
- var exampleLabel = me.tickFormatFunction(exampleTime, 0, ticksFromTimestamps(me, [exampleTime], me._majorUnit), format);
- var size = me._getLabelSize(exampleLabel);
- var capacity = Math.floor(me.isHorizontal() ? me.width / size.w : me.height / size.h);
-
- if (me.options.offset) {
- capacity--;
- }
-
- return capacity > 0 ? capacity : 1;
- }
-});
-
-// INTERNAL: static default options, registered in src/index.js
-var _defaults$4 = defaultConfig$4;
-scale_time._defaults = _defaults$4;
-
-var scales = {
- category: scale_category,
- linear: scale_linear,
- logarithmic: scale_logarithmic,
- radialLinear: scale_radialLinear,
- time: scale_time
-};
-
-var FORMATS = {
- datetime: 'MMM D, YYYY, h:mm:ss a',
- millisecond: 'h:mm:ss.SSS a',
- second: 'h:mm:ss a',
- minute: 'h:mm a',
- hour: 'hA',
- day: 'MMM D',
- week: 'll',
- month: 'MMM YYYY',
- quarter: '[Q]Q - YYYY',
- year: 'YYYY'
-};
-
-core_adapters._date.override(typeof moment === 'function' ? {
- _id: 'moment', // DEBUG ONLY
-
- formats: function() {
- return FORMATS;
- },
-
- parse: function(value, format) {
- if (typeof value === 'string' && typeof format === 'string') {
- value = moment(value, format);
- } else if (!(value instanceof moment)) {
- value = moment(value);
- }
- return value.isValid() ? value.valueOf() : null;
- },
-
- format: function(time, format) {
- return moment(time).format(format);
- },
-
- add: function(time, amount, unit) {
- return moment(time).add(amount, unit).valueOf();
- },
-
- diff: function(max, min, unit) {
- return moment(max).diff(moment(min), unit);
- },
-
- startOf: function(time, unit, weekday) {
- time = moment(time);
- if (unit === 'isoWeek') {
- return time.isoWeekday(weekday).valueOf();
- }
- return time.startOf(unit).valueOf();
- },
-
- endOf: function(time, unit) {
- return moment(time).endOf(unit).valueOf();
- },
-
- // DEPRECATIONS
-
- /**
- * Provided for backward compatibility with scale.getValueForPixel().
- * @deprecated since version 2.8.0
- * @todo remove at version 3
- * @private
- */
- _create: function(time) {
- return moment(time);
- },
-} : {});
-
-core_defaults._set('global', {
- plugins: {
- filler: {
- propagate: true
- }
- }
-});
-
-var mappers = {
- dataset: function(source) {
- var index = source.fill;
- var chart = source.chart;
- var meta = chart.getDatasetMeta(index);
- var visible = meta && chart.isDatasetVisible(index);
- var points = (visible && meta.dataset._children) || [];
- var length = points.length || 0;
-
- return !length ? null : function(point, i) {
- return (i < length && points[i]._view) || null;
- };
- },
-
- boundary: function(source) {
- var boundary = source.boundary;
- var x = boundary ? boundary.x : null;
- var y = boundary ? boundary.y : null;
-
- if (helpers$1.isArray(boundary)) {
- return function(point, i) {
- return boundary[i];
- };
- }
-
- return function(point) {
- return {
- x: x === null ? point.x : x,
- y: y === null ? point.y : y,
- };
- };
- }
-};
-
-// @todo if (fill[0] === '#')
-function decodeFill(el, index, count) {
- var model = el._model || {};
- var fill = model.fill;
- var target;
-
- if (fill === undefined) {
- fill = !!model.backgroundColor;
- }
-
- if (fill === false || fill === null) {
- return false;
- }
-
- if (fill === true) {
- return 'origin';
- }
-
- target = parseFloat(fill, 10);
- if (isFinite(target) && Math.floor(target) === target) {
- if (fill[0] === '-' || fill[0] === '+') {
- target = index + target;
- }
-
- if (target === index || target < 0 || target >= count) {
- return false;
- }
-
- return target;
- }
-
- switch (fill) {
- // compatibility
- case 'bottom':
- return 'start';
- case 'top':
- return 'end';
- case 'zero':
- return 'origin';
- // supported boundaries
- case 'origin':
- case 'start':
- case 'end':
- return fill;
- // invalid fill values
- default:
- return false;
- }
-}
-
-function computeLinearBoundary(source) {
- var model = source.el._model || {};
- var scale = source.el._scale || {};
- var fill = source.fill;
- var target = null;
- var horizontal;
-
- if (isFinite(fill)) {
- return null;
- }
-
- // Backward compatibility: until v3, we still need to support boundary values set on
- // the model (scaleTop, scaleBottom and scaleZero) because some external plugins and
- // controllers might still use it (e.g. the Smith chart).
-
- if (fill === 'start') {
- target = model.scaleBottom === undefined ? scale.bottom : model.scaleBottom;
- } else if (fill === 'end') {
- target = model.scaleTop === undefined ? scale.top : model.scaleTop;
- } else if (model.scaleZero !== undefined) {
- target = model.scaleZero;
- } else if (scale.getBasePixel) {
- target = scale.getBasePixel();
- }
-
- if (target !== undefined && target !== null) {
- if (target.x !== undefined && target.y !== undefined) {
- return target;
- }
-
- if (helpers$1.isFinite(target)) {
- horizontal = scale.isHorizontal();
- return {
- x: horizontal ? target : null,
- y: horizontal ? null : target
- };
- }
- }
-
- return null;
-}
-
-function computeCircularBoundary(source) {
- var scale = source.el._scale;
- var options = scale.options;
- var length = scale.chart.data.labels.length;
- var fill = source.fill;
- var target = [];
- var start, end, center, i, point;
-
- if (!length) {
- return null;
- }
-
- start = options.ticks.reverse ? scale.max : scale.min;
- end = options.ticks.reverse ? scale.min : scale.max;
- center = scale.getPointPositionForValue(0, start);
- for (i = 0; i < length; ++i) {
- point = fill === 'start' || fill === 'end'
- ? scale.getPointPositionForValue(i, fill === 'start' ? start : end)
- : scale.getBasePosition(i);
- if (options.gridLines.circular) {
- point.cx = center.x;
- point.cy = center.y;
- point.angle = scale.getIndexAngle(i) - Math.PI / 2;
- }
- target.push(point);
- }
- return target;
-}
-
-function computeBoundary(source) {
- var scale = source.el._scale || {};
-
- if (scale.getPointPositionForValue) {
- return computeCircularBoundary(source);
- }
- return computeLinearBoundary(source);
-}
-
-function resolveTarget(sources, index, propagate) {
- var source = sources[index];
- var fill = source.fill;
- var visited = [index];
- var target;
-
- if (!propagate) {
- return fill;
- }
-
- while (fill !== false && visited.indexOf(fill) === -1) {
- if (!isFinite(fill)) {
- return fill;
- }
-
- target = sources[fill];
- if (!target) {
- return false;
- }
-
- if (target.visible) {
- return fill;
- }
-
- visited.push(fill);
- fill = target.fill;
- }
-
- return false;
-}
-
-function createMapper(source) {
- var fill = source.fill;
- var type = 'dataset';
-
- if (fill === false) {
- return null;
- }
-
- if (!isFinite(fill)) {
- type = 'boundary';
- }
-
- return mappers[type](source);
-}
-
-function isDrawable(point) {
- return point && !point.skip;
-}
-
-function drawArea(ctx, curve0, curve1, len0, len1) {
- var i, cx, cy, r;
-
- if (!len0 || !len1) {
- return;
- }
-
- // building first area curve (normal)
- ctx.moveTo(curve0[0].x, curve0[0].y);
- for (i = 1; i < len0; ++i) {
- helpers$1.canvas.lineTo(ctx, curve0[i - 1], curve0[i]);
- }
-
- if (curve1[0].angle !== undefined) {
- cx = curve1[0].cx;
- cy = curve1[0].cy;
- r = Math.sqrt(Math.pow(curve1[0].x - cx, 2) + Math.pow(curve1[0].y - cy, 2));
- for (i = len1 - 1; i > 0; --i) {
- ctx.arc(cx, cy, r, curve1[i].angle, curve1[i - 1].angle, true);
- }
- return;
- }
-
- // joining the two area curves
- ctx.lineTo(curve1[len1 - 1].x, curve1[len1 - 1].y);
-
- // building opposite area curve (reverse)
- for (i = len1 - 1; i > 0; --i) {
- helpers$1.canvas.lineTo(ctx, curve1[i], curve1[i - 1], true);
- }
-}
-
-function doFill(ctx, points, mapper, view, color, loop) {
- var count = points.length;
- var span = view.spanGaps;
- var curve0 = [];
- var curve1 = [];
- var len0 = 0;
- var len1 = 0;
- var i, ilen, index, p0, p1, d0, d1, loopOffset;
-
- ctx.beginPath();
-
- for (i = 0, ilen = count; i < ilen; ++i) {
- index = i % count;
- p0 = points[index]._view;
- p1 = mapper(p0, index, view);
- d0 = isDrawable(p0);
- d1 = isDrawable(p1);
-
- if (loop && loopOffset === undefined && d0) {
- loopOffset = i + 1;
- ilen = count + loopOffset;
- }
-
- if (d0 && d1) {
- len0 = curve0.push(p0);
- len1 = curve1.push(p1);
- } else if (len0 && len1) {
- if (!span) {
- drawArea(ctx, curve0, curve1, len0, len1);
- len0 = len1 = 0;
- curve0 = [];
- curve1 = [];
- } else {
- if (d0) {
- curve0.push(p0);
- }
- if (d1) {
- curve1.push(p1);
- }
- }
- }
- }
-
- drawArea(ctx, curve0, curve1, len0, len1);
-
- ctx.closePath();
- ctx.fillStyle = color;
- ctx.fill();
-}
-
-var plugin_filler = {
- id: 'filler',
-
- afterDatasetsUpdate: function(chart, options) {
- var count = (chart.data.datasets || []).length;
- var propagate = options.propagate;
- var sources = [];
- var meta, i, el, source;
-
- for (i = 0; i < count; ++i) {
- meta = chart.getDatasetMeta(i);
- el = meta.dataset;
- source = null;
-
- if (el && el._model && el instanceof elements.Line) {
- source = {
- visible: chart.isDatasetVisible(i),
- fill: decodeFill(el, i, count),
- chart: chart,
- el: el
- };
- }
-
- meta.$filler = source;
- sources.push(source);
- }
-
- for (i = 0; i < count; ++i) {
- source = sources[i];
- if (!source) {
- continue;
- }
-
- source.fill = resolveTarget(sources, i, propagate);
- source.boundary = computeBoundary(source);
- source.mapper = createMapper(source);
- }
- },
-
- beforeDatasetsDraw: function(chart) {
- var metasets = chart._getSortedVisibleDatasetMetas();
- var ctx = chart.ctx;
- var meta, i, el, view, points, mapper, color;
-
- for (i = metasets.length - 1; i >= 0; --i) {
- meta = metasets[i].$filler;
-
- if (!meta || !meta.visible) {
- continue;
- }
-
- el = meta.el;
- view = el._view;
- points = el._children || [];
- mapper = meta.mapper;
- color = view.backgroundColor || core_defaults.global.defaultColor;
-
- if (mapper && color && points.length) {
- helpers$1.canvas.clipArea(ctx, chart.chartArea);
- doFill(ctx, points, mapper, view, color, el._loop);
- helpers$1.canvas.unclipArea(ctx);
- }
- }
- }
-};
-
-var getRtlHelper$1 = helpers$1.rtl.getRtlAdapter;
-var noop$1 = helpers$1.noop;
-var valueOrDefault$e = helpers$1.valueOrDefault;
-
-core_defaults._set('global', {
- legend: {
- display: true,
- position: 'top',
- align: 'center',
- fullWidth: true,
- reverse: false,
- weight: 1000,
-
- // a callback that will handle
- onClick: function(e, legendItem) {
- var index = legendItem.datasetIndex;
- var ci = this.chart;
- var meta = ci.getDatasetMeta(index);
-
- // See controller.isDatasetVisible comment
- meta.hidden = meta.hidden === null ? !ci.data.datasets[index].hidden : null;
-
- // We hid a dataset ... rerender the chart
- ci.update();
- },
-
- onHover: null,
- onLeave: null,
-
- labels: {
- boxWidth: 40,
- padding: 10,
- // Generates labels shown in the legend
- // Valid properties to return:
- // text : text to display
- // fillStyle : fill of coloured box
- // strokeStyle: stroke of coloured box
- // hidden : if this legend item refers to a hidden item
- // lineCap : cap style for line
- // lineDash
- // lineDashOffset :
- // lineJoin :
- // lineWidth :
- generateLabels: function(chart) {
- var datasets = chart.data.datasets;
- var options = chart.options.legend || {};
- var usePointStyle = options.labels && options.labels.usePointStyle;
-
- return chart._getSortedDatasetMetas().map(function(meta) {
- var style = meta.controller.getStyle(usePointStyle ? 0 : undefined);
-
- return {
- text: datasets[meta.index].label,
- fillStyle: style.backgroundColor,
- hidden: !chart.isDatasetVisible(meta.index),
- lineCap: style.borderCapStyle,
- lineDash: style.borderDash,
- lineDashOffset: style.borderDashOffset,
- lineJoin: style.borderJoinStyle,
- lineWidth: style.borderWidth,
- strokeStyle: style.borderColor,
- pointStyle: style.pointStyle,
- rotation: style.rotation,
-
- // Below is extra data used for toggling the datasets
- datasetIndex: meta.index
- };
- }, this);
- }
- }
- },
-
- legendCallback: function(chart) {
- var list = document.createElement('ul');
- var datasets = chart.data.datasets;
- var i, ilen, listItem, listItemSpan;
-
- list.setAttribute('class', chart.id + '-legend');
-
- for (i = 0, ilen = datasets.length; i < ilen; i++) {
- listItem = list.appendChild(document.createElement('li'));
- listItemSpan = listItem.appendChild(document.createElement('span'));
- listItemSpan.style.backgroundColor = datasets[i].backgroundColor;
- if (datasets[i].label) {
- listItem.appendChild(document.createTextNode(datasets[i].label));
- }
- }
-
- return list.outerHTML;
- }
-});
-
-/**
- * Helper function to get the box width based on the usePointStyle option
- * @param {object} labelopts - the label options on the legend
- * @param {number} fontSize - the label font size
- * @return {number} width of the color box area
- */
-function getBoxWidth(labelOpts, fontSize) {
- return labelOpts.usePointStyle && labelOpts.boxWidth > fontSize ?
- fontSize :
- labelOpts.boxWidth;
-}
-
-/**
- * IMPORTANT: this class is exposed publicly as Chart.Legend, backward compatibility required!
- */
-var Legend = core_element.extend({
-
- initialize: function(config) {
- var me = this;
- helpers$1.extend(me, config);
-
- // Contains hit boxes for each dataset (in dataset order)
- me.legendHitBoxes = [];
-
- /**
- * @private
- */
- me._hoveredItem = null;
-
- // Are we in doughnut mode which has a different data type
- me.doughnutMode = false;
- },
-
- // These methods are ordered by lifecycle. Utilities then follow.
- // Any function defined here is inherited by all legend types.
- // Any function can be extended by the legend type
-
- beforeUpdate: noop$1,
- update: function(maxWidth, maxHeight, margins) {
- var me = this;
-
- // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
- me.beforeUpdate();
-
- // Absorb the master measurements
- me.maxWidth = maxWidth;
- me.maxHeight = maxHeight;
- me.margins = margins;
-
- // Dimensions
- me.beforeSetDimensions();
- me.setDimensions();
- me.afterSetDimensions();
- // Labels
- me.beforeBuildLabels();
- me.buildLabels();
- me.afterBuildLabels();
-
- // Fit
- me.beforeFit();
- me.fit();
- me.afterFit();
- //
- me.afterUpdate();
-
- return me.minSize;
- },
- afterUpdate: noop$1,
-
- //
-
- beforeSetDimensions: noop$1,
- setDimensions: function() {
- var me = this;
- // Set the unconstrained dimension before label rotation
- if (me.isHorizontal()) {
- // Reset position before calculating rotation
- me.width = me.maxWidth;
- me.left = 0;
- me.right = me.width;
- } else {
- me.height = me.maxHeight;
-
- // Reset position before calculating rotation
- me.top = 0;
- me.bottom = me.height;
- }
-
- // Reset padding
- me.paddingLeft = 0;
- me.paddingTop = 0;
- me.paddingRight = 0;
- me.paddingBottom = 0;
-
- // Reset minSize
- me.minSize = {
- width: 0,
- height: 0
- };
- },
- afterSetDimensions: noop$1,
-
- //
-
- beforeBuildLabels: noop$1,
- buildLabels: function() {
- var me = this;
- var labelOpts = me.options.labels || {};
- var legendItems = helpers$1.callback(labelOpts.generateLabels, [me.chart], me) || [];
-
- if (labelOpts.filter) {
- legendItems = legendItems.filter(function(item) {
- return labelOpts.filter(item, me.chart.data);
- });
- }
-
- if (me.options.reverse) {
- legendItems.reverse();
- }
-
- me.legendItems = legendItems;
- },
- afterBuildLabels: noop$1,
-
- //
-
- beforeFit: noop$1,
- fit: function() {
- var me = this;
- var opts = me.options;
- var labelOpts = opts.labels;
- var display = opts.display;
-
- var ctx = me.ctx;
-
- var labelFont = helpers$1.options._parseFont(labelOpts);
- var fontSize = labelFont.size;
-
- // Reset hit boxes
- var hitboxes = me.legendHitBoxes = [];
-
- var minSize = me.minSize;
- var isHorizontal = me.isHorizontal();
-
- if (isHorizontal) {
- minSize.width = me.maxWidth; // fill all the width
- minSize.height = display ? 10 : 0;
- } else {
- minSize.width = display ? 10 : 0;
- minSize.height = me.maxHeight; // fill all the height
- }
-
- // Increase sizes here
- if (!display) {
- me.width = minSize.width = me.height = minSize.height = 0;
- return;
- }
- ctx.font = labelFont.string;
-
- if (isHorizontal) {
- // Labels
-
- // Width of each line of legend boxes. Labels wrap onto multiple lines when there are too many to fit on one
- var lineWidths = me.lineWidths = [0];
- var totalHeight = 0;
-
- ctx.textAlign = 'left';
- ctx.textBaseline = 'middle';
-
- helpers$1.each(me.legendItems, function(legendItem, i) {
- var boxWidth = getBoxWidth(labelOpts, fontSize);
- var width = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;
-
- if (i === 0 || lineWidths[lineWidths.length - 1] + width + 2 * labelOpts.padding > minSize.width) {
- totalHeight += fontSize + labelOpts.padding;
- lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = 0;
- }
-
- // Store the hitbox width and height here. Final position will be updated in `draw`
- hitboxes[i] = {
- left: 0,
- top: 0,
- width: width,
- height: fontSize
- };
-
- lineWidths[lineWidths.length - 1] += width + labelOpts.padding;
- });
-
- minSize.height += totalHeight;
-
- } else {
- var vPadding = labelOpts.padding;
- var columnWidths = me.columnWidths = [];
- var columnHeights = me.columnHeights = [];
- var totalWidth = labelOpts.padding;
- var currentColWidth = 0;
- var currentColHeight = 0;
-
- helpers$1.each(me.legendItems, function(legendItem, i) {
- var boxWidth = getBoxWidth(labelOpts, fontSize);
- var itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;
-
- // If too tall, go to new column
- if (i > 0 && currentColHeight + fontSize + 2 * vPadding > minSize.height) {
- totalWidth += currentColWidth + labelOpts.padding;
- columnWidths.push(currentColWidth); // previous column width
- columnHeights.push(currentColHeight);
- currentColWidth = 0;
- currentColHeight = 0;
- }
-
- // Get max width
- currentColWidth = Math.max(currentColWidth, itemWidth);
- currentColHeight += fontSize + vPadding;
-
- // Store the hitbox width and height here. Final position will be updated in `draw`
- hitboxes[i] = {
- left: 0,
- top: 0,
- width: itemWidth,
- height: fontSize
- };
- });
-
- totalWidth += currentColWidth;
- columnWidths.push(currentColWidth);
- columnHeights.push(currentColHeight);
- minSize.width += totalWidth;
- }
-
- me.width = minSize.width;
- me.height = minSize.height;
- },
- afterFit: noop$1,
-
- // Shared Methods
- isHorizontal: function() {
- return this.options.position === 'top' || this.options.position === 'bottom';
- },
-
- // Actually draw the legend on the canvas
- draw: function() {
- var me = this;
- var opts = me.options;
- var labelOpts = opts.labels;
- var globalDefaults = core_defaults.global;
- var defaultColor = globalDefaults.defaultColor;
- var lineDefault = globalDefaults.elements.line;
- var legendHeight = me.height;
- var columnHeights = me.columnHeights;
- var legendWidth = me.width;
- var lineWidths = me.lineWidths;
-
- if (!opts.display) {
- return;
- }
-
- var rtlHelper = getRtlHelper$1(opts.rtl, me.left, me.minSize.width);
- var ctx = me.ctx;
- var fontColor = valueOrDefault$e(labelOpts.fontColor, globalDefaults.defaultFontColor);
- var labelFont = helpers$1.options._parseFont(labelOpts);
- var fontSize = labelFont.size;
- var cursor;
-
- // Canvas setup
- ctx.textAlign = rtlHelper.textAlign('left');
- ctx.textBaseline = 'middle';
- ctx.lineWidth = 0.5;
- ctx.strokeStyle = fontColor; // for strikethrough effect
- ctx.fillStyle = fontColor; // render in correct colour
- ctx.font = labelFont.string;
-
- var boxWidth = getBoxWidth(labelOpts, fontSize);
- var hitboxes = me.legendHitBoxes;
-
- // current position
- var drawLegendBox = function(x, y, legendItem) {
- if (isNaN(boxWidth) || boxWidth <= 0) {
- return;
- }
-
- // Set the ctx for the box
- ctx.save();
-
- var lineWidth = valueOrDefault$e(legendItem.lineWidth, lineDefault.borderWidth);
- ctx.fillStyle = valueOrDefault$e(legendItem.fillStyle, defaultColor);
- ctx.lineCap = valueOrDefault$e(legendItem.lineCap, lineDefault.borderCapStyle);
- ctx.lineDashOffset = valueOrDefault$e(legendItem.lineDashOffset, lineDefault.borderDashOffset);
- ctx.lineJoin = valueOrDefault$e(legendItem.lineJoin, lineDefault.borderJoinStyle);
- ctx.lineWidth = lineWidth;
- ctx.strokeStyle = valueOrDefault$e(legendItem.strokeStyle, defaultColor);
-
- if (ctx.setLineDash) {
- // IE 9 and 10 do not support line dash
- ctx.setLineDash(valueOrDefault$e(legendItem.lineDash, lineDefault.borderDash));
- }
-
- if (labelOpts && labelOpts.usePointStyle) {
- // Recalculate x and y for drawPoint() because its expecting
- // x and y to be center of figure (instead of top left)
- var radius = boxWidth * Math.SQRT2 / 2;
- var centerX = rtlHelper.xPlus(x, boxWidth / 2);
- var centerY = y + fontSize / 2;
-
- // Draw pointStyle as legend symbol
- helpers$1.canvas.drawPoint(ctx, legendItem.pointStyle, radius, centerX, centerY, legendItem.rotation);
- } else {
- // Draw box as legend symbol
- ctx.fillRect(rtlHelper.leftForLtr(x, boxWidth), y, boxWidth, fontSize);
- if (lineWidth !== 0) {
- ctx.strokeRect(rtlHelper.leftForLtr(x, boxWidth), y, boxWidth, fontSize);
- }
- }
-
- ctx.restore();
- };
-
- var fillText = function(x, y, legendItem, textWidth) {
- var halfFontSize = fontSize / 2;
- var xLeft = rtlHelper.xPlus(x, boxWidth + halfFontSize);
- var yMiddle = y + halfFontSize;
-
- ctx.fillText(legendItem.text, xLeft, yMiddle);
-
- if (legendItem.hidden) {
- // Strikethrough the text if hidden
- ctx.beginPath();
- ctx.lineWidth = 2;
- ctx.moveTo(xLeft, yMiddle);
- ctx.lineTo(rtlHelper.xPlus(xLeft, textWidth), yMiddle);
- ctx.stroke();
- }
- };
-
- var alignmentOffset = function(dimension, blockSize) {
- switch (opts.align) {
- case 'start':
- return labelOpts.padding;
- case 'end':
- return dimension - blockSize;
- default: // center
- return (dimension - blockSize + labelOpts.padding) / 2;
- }
- };
-
- // Horizontal
- var isHorizontal = me.isHorizontal();
- if (isHorizontal) {
- cursor = {
- x: me.left + alignmentOffset(legendWidth, lineWidths[0]),
- y: me.top + labelOpts.padding,
- line: 0
- };
- } else {
- cursor = {
- x: me.left + labelOpts.padding,
- y: me.top + alignmentOffset(legendHeight, columnHeights[0]),
- line: 0
- };
- }
-
- helpers$1.rtl.overrideTextDirection(me.ctx, opts.textDirection);
-
- var itemHeight = fontSize + labelOpts.padding;
- helpers$1.each(me.legendItems, function(legendItem, i) {
- var textWidth = ctx.measureText(legendItem.text).width;
- var width = boxWidth + (fontSize / 2) + textWidth;
- var x = cursor.x;
- var y = cursor.y;
-
- rtlHelper.setWidth(me.minSize.width);
-
- // Use (me.left + me.minSize.width) and (me.top + me.minSize.height)
- // instead of me.right and me.bottom because me.width and me.height
- // may have been changed since me.minSize was calculated
- if (isHorizontal) {
- if (i > 0 && x + width + labelOpts.padding > me.left + me.minSize.width) {
- y = cursor.y += itemHeight;
- cursor.line++;
- x = cursor.x = me.left + alignmentOffset(legendWidth, lineWidths[cursor.line]);
- }
- } else if (i > 0 && y + itemHeight > me.top + me.minSize.height) {
- x = cursor.x = x + me.columnWidths[cursor.line] + labelOpts.padding;
- cursor.line++;
- y = cursor.y = me.top + alignmentOffset(legendHeight, columnHeights[cursor.line]);
- }
-
- var realX = rtlHelper.x(x);
-
- drawLegendBox(realX, y, legendItem);
-
- hitboxes[i].left = rtlHelper.leftForLtr(realX, hitboxes[i].width);
- hitboxes[i].top = y;
-
- // Fill the actual label
- fillText(realX, y, legendItem, textWidth);
-
- if (isHorizontal) {
- cursor.x += width + labelOpts.padding;
- } else {
- cursor.y += itemHeight;
- }
- });
-
- helpers$1.rtl.restoreTextDirection(me.ctx, opts.textDirection);
- },
-
- /**
- * @private
- */
- _getLegendItemAt: function(x, y) {
- var me = this;
- var i, hitBox, lh;
-
- if (x >= me.left && x <= me.right && y >= me.top && y <= me.bottom) {
- // See if we are touching one of the dataset boxes
- lh = me.legendHitBoxes;
- for (i = 0; i < lh.length; ++i) {
- hitBox = lh[i];
-
- if (x >= hitBox.left && x <= hitBox.left + hitBox.width && y >= hitBox.top && y <= hitBox.top + hitBox.height) {
- // Touching an element
- return me.legendItems[i];
- }
- }
- }
-
- return null;
- },
-
- /**
- * Handle an event
- * @private
- * @param {IEvent} event - The event to handle
- */
- handleEvent: function(e) {
- var me = this;
- var opts = me.options;
- var type = e.type === 'mouseup' ? 'click' : e.type;
- var hoveredItem;
-
- if (type === 'mousemove') {
- if (!opts.onHover && !opts.onLeave) {
- return;
- }
- } else if (type === 'click') {
- if (!opts.onClick) {
- return;
- }
- } else {
- return;
- }
-
- // Chart event already has relative position in it
- hoveredItem = me._getLegendItemAt(e.x, e.y);
-
- if (type === 'click') {
- if (hoveredItem && opts.onClick) {
- // use e.native for backwards compatibility
- opts.onClick.call(me, e.native, hoveredItem);
- }
- } else {
- if (opts.onLeave && hoveredItem !== me._hoveredItem) {
- if (me._hoveredItem) {
- opts.onLeave.call(me, e.native, me._hoveredItem);
- }
- me._hoveredItem = hoveredItem;
- }
-
- if (opts.onHover && hoveredItem) {
- // use e.native for backwards compatibility
- opts.onHover.call(me, e.native, hoveredItem);
- }
- }
- }
-});
-
-function createNewLegendAndAttach(chart, legendOpts) {
- var legend = new Legend({
- ctx: chart.ctx,
- options: legendOpts,
- chart: chart
- });
-
- core_layouts.configure(chart, legend, legendOpts);
- core_layouts.addBox(chart, legend);
- chart.legend = legend;
-}
-
-var plugin_legend = {
- id: 'legend',
-
- /**
- * Backward compatibility: since 2.1.5, the legend is registered as a plugin, making
- * Chart.Legend obsolete. To avoid a breaking change, we export the Legend as part of
- * the plugin, which one will be re-exposed in the chart.js file.
- * https://github.com/chartjs/Chart.js/pull/2640
- * @private
- */
- _element: Legend,
-
- beforeInit: function(chart) {
- var legendOpts = chart.options.legend;
-
- if (legendOpts) {
- createNewLegendAndAttach(chart, legendOpts);
- }
- },
-
- beforeUpdate: function(chart) {
- var legendOpts = chart.options.legend;
- var legend = chart.legend;
-
- if (legendOpts) {
- helpers$1.mergeIf(legendOpts, core_defaults.global.legend);
-
- if (legend) {
- core_layouts.configure(chart, legend, legendOpts);
- legend.options = legendOpts;
- } else {
- createNewLegendAndAttach(chart, legendOpts);
- }
- } else if (legend) {
- core_layouts.removeBox(chart, legend);
- delete chart.legend;
- }
- },
-
- afterEvent: function(chart, e) {
- var legend = chart.legend;
- if (legend) {
- legend.handleEvent(e);
- }
- }
-};
-
-var noop$2 = helpers$1.noop;
-
-core_defaults._set('global', {
- title: {
- display: false,
- fontStyle: 'bold',
- fullWidth: true,
- padding: 10,
- position: 'top',
- text: '',
- weight: 2000 // by default greater than legend (1000) to be above
- }
-});
-
-/**
- * IMPORTANT: this class is exposed publicly as Chart.Legend, backward compatibility required!
- */
-var Title = core_element.extend({
- initialize: function(config) {
- var me = this;
- helpers$1.extend(me, config);
-
- // Contains hit boxes for each dataset (in dataset order)
- me.legendHitBoxes = [];
- },
-
- // These methods are ordered by lifecycle. Utilities then follow.
-
- beforeUpdate: noop$2,
- update: function(maxWidth, maxHeight, margins) {
- var me = this;
-
- // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
- me.beforeUpdate();
-
- // Absorb the master measurements
- me.maxWidth = maxWidth;
- me.maxHeight = maxHeight;
- me.margins = margins;
-
- // Dimensions
- me.beforeSetDimensions();
- me.setDimensions();
- me.afterSetDimensions();
- // Labels
- me.beforeBuildLabels();
- me.buildLabels();
- me.afterBuildLabels();
-
- // Fit
- me.beforeFit();
- me.fit();
- me.afterFit();
- //
- me.afterUpdate();
-
- return me.minSize;
-
- },
- afterUpdate: noop$2,
-
- //
-
- beforeSetDimensions: noop$2,
- setDimensions: function() {
- var me = this;
- // Set the unconstrained dimension before label rotation
- if (me.isHorizontal()) {
- // Reset position before calculating rotation
- me.width = me.maxWidth;
- me.left = 0;
- me.right = me.width;
- } else {
- me.height = me.maxHeight;
-
- // Reset position before calculating rotation
- me.top = 0;
- me.bottom = me.height;
- }
-
- // Reset padding
- me.paddingLeft = 0;
- me.paddingTop = 0;
- me.paddingRight = 0;
- me.paddingBottom = 0;
-
- // Reset minSize
- me.minSize = {
- width: 0,
- height: 0
- };
- },
- afterSetDimensions: noop$2,
-
- //
-
- beforeBuildLabels: noop$2,
- buildLabels: noop$2,
- afterBuildLabels: noop$2,
-
- //
-
- beforeFit: noop$2,
- fit: function() {
- var me = this;
- var opts = me.options;
- var minSize = me.minSize = {};
- var isHorizontal = me.isHorizontal();
- var lineCount, textSize;
-
- if (!opts.display) {
- me.width = minSize.width = me.height = minSize.height = 0;
- return;
- }
-
- lineCount = helpers$1.isArray(opts.text) ? opts.text.length : 1;
- textSize = lineCount * helpers$1.options._parseFont(opts).lineHeight + opts.padding * 2;
-
- me.width = minSize.width = isHorizontal ? me.maxWidth : textSize;
- me.height = minSize.height = isHorizontal ? textSize : me.maxHeight;
- },
- afterFit: noop$2,
-
- // Shared Methods
- isHorizontal: function() {
- var pos = this.options.position;
- return pos === 'top' || pos === 'bottom';
- },
-
- // Actually draw the title block on the canvas
- draw: function() {
- var me = this;
- var ctx = me.ctx;
- var opts = me.options;
-
- if (!opts.display) {
- return;
- }
-
- var fontOpts = helpers$1.options._parseFont(opts);
- var lineHeight = fontOpts.lineHeight;
- var offset = lineHeight / 2 + opts.padding;
- var rotation = 0;
- var top = me.top;
- var left = me.left;
- var bottom = me.bottom;
- var right = me.right;
- var maxWidth, titleX, titleY;
-
- ctx.fillStyle = helpers$1.valueOrDefault(opts.fontColor, core_defaults.global.defaultFontColor); // render in correct colour
- ctx.font = fontOpts.string;
-
- // Horizontal
- if (me.isHorizontal()) {
- titleX = left + ((right - left) / 2); // midpoint of the width
- titleY = top + offset;
- maxWidth = right - left;
- } else {
- titleX = opts.position === 'left' ? left + offset : right - offset;
- titleY = top + ((bottom - top) / 2);
- maxWidth = bottom - top;
- rotation = Math.PI * (opts.position === 'left' ? -0.5 : 0.5);
- }
-
- ctx.save();
- ctx.translate(titleX, titleY);
- ctx.rotate(rotation);
- ctx.textAlign = 'center';
- ctx.textBaseline = 'middle';
-
- var text = opts.text;
- if (helpers$1.isArray(text)) {
- var y = 0;
- for (var i = 0; i < text.length; ++i) {
- ctx.fillText(text[i], 0, y, maxWidth);
- y += lineHeight;
- }
- } else {
- ctx.fillText(text, 0, 0, maxWidth);
- }
-
- ctx.restore();
- }
-});
-
-function createNewTitleBlockAndAttach(chart, titleOpts) {
- var title = new Title({
- ctx: chart.ctx,
- options: titleOpts,
- chart: chart
- });
-
- core_layouts.configure(chart, title, titleOpts);
- core_layouts.addBox(chart, title);
- chart.titleBlock = title;
-}
-
-var plugin_title = {
- id: 'title',
-
- /**
- * Backward compatibility: since 2.1.5, the title is registered as a plugin, making
- * Chart.Title obsolete. To avoid a breaking change, we export the Title as part of
- * the plugin, which one will be re-exposed in the chart.js file.
- * https://github.com/chartjs/Chart.js/pull/2640
- * @private
- */
- _element: Title,
-
- beforeInit: function(chart) {
- var titleOpts = chart.options.title;
-
- if (titleOpts) {
- createNewTitleBlockAndAttach(chart, titleOpts);
- }
- },
-
- beforeUpdate: function(chart) {
- var titleOpts = chart.options.title;
- var titleBlock = chart.titleBlock;
-
- if (titleOpts) {
- helpers$1.mergeIf(titleOpts, core_defaults.global.title);
-
- if (titleBlock) {
- core_layouts.configure(chart, titleBlock, titleOpts);
- titleBlock.options = titleOpts;
- } else {
- createNewTitleBlockAndAttach(chart, titleOpts);
- }
- } else if (titleBlock) {
- core_layouts.removeBox(chart, titleBlock);
- delete chart.titleBlock;
- }
- }
-};
-
-var plugins = {};
-var filler = plugin_filler;
-var legend = plugin_legend;
-var title = plugin_title;
-plugins.filler = filler;
-plugins.legend = legend;
-plugins.title = title;
-
-/**
- * @namespace Chart
- */
-
-
-core_controller.helpers = helpers$1;
-
-// @todo dispatch these helpers into appropriated helpers/helpers.* file and write unit tests!
-core_helpers();
-
-core_controller._adapters = core_adapters;
-core_controller.Animation = core_animation;
-core_controller.animationService = core_animations;
-core_controller.controllers = controllers;
-core_controller.DatasetController = core_datasetController;
-core_controller.defaults = core_defaults;
-core_controller.Element = core_element;
-core_controller.elements = elements;
-core_controller.Interaction = core_interaction;
-core_controller.layouts = core_layouts;
-core_controller.platform = platform;
-core_controller.plugins = core_plugins;
-core_controller.Scale = core_scale;
-core_controller.scaleService = core_scaleService;
-core_controller.Ticks = core_ticks;
-core_controller.Tooltip = core_tooltip;
-
-// Register built-in scales
-
-core_controller.helpers.each(scales, function(scale, type) {
- core_controller.scaleService.registerScaleType(type, scale, scale._defaults);
-});
-
-// Load to register built-in adapters (as side effects)
-
-
-// Loading built-in plugins
-
-for (var k in plugins) {
- if (plugins.hasOwnProperty(k)) {
- core_controller.plugins.register(plugins[k]);
- }
-}
-
-core_controller.platform.initialize();
-
-var src = core_controller;
-if (typeof window !== 'undefined') {
- window.Chart = core_controller;
-}
-
-// DEPRECATIONS
-
-/**
- * Provided for backward compatibility, not available anymore
- * @namespace Chart.Chart
- * @deprecated since version 2.8.0
- * @todo remove at version 3
- * @private
- */
-core_controller.Chart = core_controller;
-
-/**
- * Provided for backward compatibility, not available anymore
- * @namespace Chart.Legend
- * @deprecated since version 2.1.5
- * @todo remove at version 3
- * @private
- */
-core_controller.Legend = plugins.legend._element;
-
-/**
- * Provided for backward compatibility, not available anymore
- * @namespace Chart.Title
- * @deprecated since version 2.1.5
- * @todo remove at version 3
- * @private
- */
-core_controller.Title = plugins.title._element;
-
-/**
- * Provided for backward compatibility, use Chart.plugins instead
- * @namespace Chart.pluginService
- * @deprecated since version 2.1.5
- * @todo remove at version 3
- * @private
- */
-core_controller.pluginService = core_controller.plugins;
-
-/**
- * Provided for backward compatibility, inheriting from Chart.PlugingBase has no
- * effect, instead simply create/register plugins via plain JavaScript objects.
- * @interface Chart.PluginBase
- * @deprecated since version 2.5.0
- * @todo remove at version 3
- * @private
- */
-core_controller.PluginBase = core_controller.Element.extend({});
-
-/**
- * Provided for backward compatibility, use Chart.helpers.canvas instead.
- * @namespace Chart.canvasHelpers
- * @deprecated since version 2.6.0
- * @todo remove at version 3
- * @private
- */
-core_controller.canvasHelpers = core_controller.helpers.canvas;
-
-/**
- * Provided for backward compatibility, use Chart.layouts instead.
- * @namespace Chart.layoutService
- * @deprecated since version 2.7.3
- * @todo remove at version 3
- * @private
- */
-core_controller.layoutService = core_controller.layouts;
-
-/**
- * Provided for backward compatibility, not available anymore.
- * @namespace Chart.LinearScaleBase
- * @deprecated since version 2.8
- * @todo remove at version 3
- * @private
- */
-core_controller.LinearScaleBase = scale_linearbase;
-
-/**
- * Provided for backward compatibility, instead we should create a new Chart
- * by setting the type in the config (`new Chart(id, {type: '{chart-type}'}`).
- * @deprecated since version 2.8.0
- * @todo remove at version 3
- */
-core_controller.helpers.each(
- [
- 'Bar',
- 'Bubble',
- 'Doughnut',
- 'Line',
- 'PolarArea',
- 'Radar',
- 'Scatter'
- ],
- function(klass) {
- core_controller[klass] = function(ctx, cfg) {
- return new core_controller(ctx, core_controller.helpers.merge(cfg || {}, {
- type: klass.charAt(0).toLowerCase() + klass.slice(1)
- }));
- };
- }
-);
-
-return src;
-
-})));
diff --git a/www/html/bilan.py b/www/html/bilan.py
index 29d42b0..a85fe98 100755
--- a/www/html/bilan.py
+++ b/www/html/bilan.py
@@ -8,59 +8,51 @@ def index(req):
req.content_type="text/html"
ipdst=str()
portdst=str()
+ ipsrc=str()
+ portsrc=str()
#sql part
conn=connexionBD()
cur=conn.cursor()
###
- cur.execute("SELECT COUNT(*) FROM paquet")
- conn.commit()
- total=str(cur.fetchone()[0])
-#
- cur.execute("SELECT COUNT(DISTINCT ip_source) FROM paquet")
- conn.commit()
- total_ip_src=str(cur.fetchone()[0])
-#
- cur.execute("SELECT COUNT(DISTINCT ip_destination) FROM paquet")
- conn.commit()
- total_ip_dst=str(cur.fetchone()[0])
-#
- cur.execute("SELECT COUNT(DISTINCT port_source) FROM paquet")
- conn.commit()
- total_port_src=str(cur.fetchone()[0])
-#
- cur.execute("SELECT COUNT(DISTINCT port_destination) FROM paquet")
- conn.commit()
- total_port_dst=str(cur.fetchone()[0])
-#
- cur.execute("SELECT COUNT(*) FROM paquet WHERE (heure>=( SELECT LOCALTIME - interval '1 hour' ) AND heure<= (SELECT LOCALTIME));")
- conn.commit()
- total_uneheure=str(cur.fetchone()[0])
-#
- cur.execute("SELECT ip_destination, COUNT(ip_destination) FROM paquet GROUP BY ip_destination DESC")
- conn.commit()
- each_ip_dest=cur.fetchall()
-#
- cur.execute("SELECT port_destination, COUNT(port_destination) FROM paquet GROUP BY port_destination")
- conn.commit()
- each_port_dest=cur.fetchall()
+ sql=["SELECT COUNT(*) FROM paquet","SELECT COUNT(DISTINCT ip_source) FROM paquet","SELECT COUNT(DISTINCT ip_destination) FROM paquet","SELECT COUNT(DISTINCT port_source) FROM paquet","SELECT COUNT(DISTINCT port_destination) FROM paquet","SELECT COUNT(*) FROM paquet WHERE (heure>=( SELECT LOCALTIME - interval '1 hour' ) AND heure<= (SELECT LOCALTIME));"]
+ var=["total","total_ip_src","total_ip_dst","total_port_src","total_port_dst","total_uneheure"]
+ for x,y in zip(sql,var):
+ cur.execute(x)
+ conn.commit()
+ globals()[y]=str(cur.fetchone()[0])
+#
+ sql=["SELECT ip_destination, COUNT(ip_destination) FROM paquet GROUP BY ip_destination ORDER BY count DESC","SELECT port_destination, COUNT(port_destination) FROM paquet GROUP BY port_destination ORDER BY count DESC","SELECT ip_source, COUNT(ip_source) FROM paquet GROUP BY ip_source ORDER BY count DESC","SELECT port_source, COUNT(port_source) FROM paquet GROUP BY port_source ORDER BY count DESC"]
+ var=["each_ip_dst","each_port_dst","each_ip_src","each_port_src"]
+ for x,y in zip(sql,var):
+ cur.execute(x)
+ conn.commit()
+ globals()[y]=cur.fetchall()
###
conn.close()
+
#sql part
-#loops
- for i in each_ip_dest :
- ipdst+=("""<tr>
-<td>""" + str(i[0]) + """</td>
-<td>""" + str(i[1]) + """</td>
- </tr>""")
+ champs=["ip","port"]
+ suff=["dst","src"]
+ global each_ip_dst
+ global each_ip_src
+ global each_port_dst
+ global each_port_src
+ global ipdst
+ global ipsrc
+ global portdst
+ global portsrc
- for i in each_port_dest :
- portdst+=("""<tr>
+ for j in champs:
+ for k in suff:
+ nom="each_"+j+"_"+k
+ for i in globals()[nom]:
+ globals()[j+k]+=("""<tr>
<td>""" + str(i[0]) + """</td>
<td>""" + str(i[1]) + """</td>
- </tr>""")
-#loops
+ </tr>""")
+
#write the html page
@@ -83,6 +75,14 @@ def index(req):
<tr><th>Port destination</th><th>Reccurrence</th></tr>
"""+str(portdst)+"""
</table>
+<table class="inlineTable">
+<tr><th>IP source</th><th>Reccurrence</th></tr>
+"""+str(ipsrc)+"""
+</table>
+<table class="inlineTable">
+<tr><th>Port source</th><th>Reccurrence</th></tr>
+"""+str(portsrc)+"""
+</table>
<canvas id="protocole" width="20vh" height="40vw"></canvas>
<script src="/Chart.js"></script>
<script src="/pie.js"></script>
diff --git a/www/html/fonctions.pyc b/www/html/fonctions.pyc
index a5f563a..cdba653 100644
--- a/www/html/fonctions.pyc
+++ b/www/html/fonctions.pyc
Binary files differ
diff --git a/www/html/pie.js b/www/html/pie.js
deleted file mode 100644
index ff54c76..0000000
--- a/www/html/pie.js
+++ /dev/null
@@ -1,35 +0,0 @@
-var list = document.getElementById('nomProtocole');
-var nb = document.getElementById('nbParProtocole');
-var ctx = document.getElementById('protocole');
-var myChart = new Chart(ctx, {
- type: 'doughnut',
- data: {
- labels: list,
- datasets: [{
- label: 'Protocole',
- data: nb,
- backgroundColor: [
- 'rgba(255, 99, 132, 0.2)',
- 'rgba(54, 162, 235, 0.2)',
- 'rgba(255, 206, 86, 0.2)',
- 'rgba(75, 192, 192, 0.2)',
- 'rgba(153, 102, 255, 0.2)',
- 'rgba(255, 159, 64, 0.2)'
- ],
- borderColor: [
- 'rgba(255, 99, 132, 1)',
- 'rgba(54, 162, 235, 1)',
- 'rgba(255, 206, 86, 1)',
- 'rgba(75, 192, 192, 1)',
- 'rgba(153, 102, 255, 1)',
- 'rgba(255, 159, 64, 1)'
- ],
- borderWidth: 10,
- weight: 1
- }]
- },
- options: {
- responsive: true,
- maintainAspectRatio: false,
- }
- });
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-01 21:51:56 +0000