(window["webpackJsonp"] = window["webpackJsonp"] || []).push([["main"],{ /***/ "./$$_lazy_route_resource lazy recursive": /*!******************************************************!*\ !*** ./$$_lazy_route_resource lazy namespace object ***! \******************************************************/ /*! no static exports found */ /***/ (function(module, exports) { function webpackEmptyAsyncContext(req) { // Here Promise.resolve().then() is used instead of new Promise() to prevent // uncaught exception popping up in devtools return Promise.resolve().then(function() { var e = new Error("Cannot find module '" + req + "'"); e.code = 'MODULE_NOT_FOUND'; throw e; }); } webpackEmptyAsyncContext.keys = function() { return []; }; webpackEmptyAsyncContext.resolve = webpackEmptyAsyncContext; module.exports = webpackEmptyAsyncContext; webpackEmptyAsyncContext.id = "./$$_lazy_route_resource lazy recursive"; /***/ }), /***/ "./node_modules/chart.js/dist/Chart.js": /*!*********************************************!*\ !*** ./node_modules/chart.js/dist/Chart.js ***! \*********************************************/ /*! no static exports found */ /***/ (function(module, exports, __webpack_require__) { /*! * Chart.js v2.9.3 * https://www.chartjs.org * (c) 2019 Chart.js Contributors * Released under the MIT License */ (function (global, factory) { true ? module.exports = factory(function() { try { return __webpack_require__(/*! moment */ "./node_modules/moment/moment.js"); } catch(e) { } }()) : undefined; }(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