@prescott/geo-pattern
Version:
Create beautiful generative geometric background images from a string.
1,827 lines (1,512 loc) • 131 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = global || self, factory(global.geoPattern = {}));
}(this, (function (exports) { 'use strict';
/*! *****************************************************************************
Copyright (c) Microsoft Corporation.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */
/* global Reflect, Promise */
var extendStatics = function(d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
function __extends(d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
}
var __assign = function() {
__assign = Object.assign || function __assign(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
function __awaiter(thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
}
function __generator(thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
}
function __spreadArrays() {
for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;
for (var r = Array(s), k = 0, i = 0; i < il; i++)
for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
r[k] = a[j];
return r;
}
var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
function createCommonjsModule(fn, basedir, module) {
return module = {
path: basedir,
exports: {},
require: function (path, base) {
return commonjsRequire(path, (base === undefined || base === null) ? module.path : base);
}
}, fn(module, module.exports), module.exports;
}
function commonjsRequire () {
throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs');
}
var tinySha1 = createCommonjsModule(function (module, exports) {
(function (global, factory) {
module.exports = factory() ;
}(commonjsGlobal, function () {
var systemLittleEndian = new Uint16Array(new Uint8Array([0x7F, 0xFF]).buffer)[0] === 0xFF7F;
function swap4(num) {
return num >> 24 & 0xff | num >> 8 & 0xff00 | num << 8 & 0xff0000 | num << 24 & 0xff000000;
}
function align(address, alignment) {
var tmp = alignment - 1;
return address + tmp & ~tmp;
}
/** Convert a uint32 to an 8-character big-endian hex string. */
function hexify(n) {
var s = '';
var i = 8;
while (i--) {
s += (n >>> (i << 2) & 0xf).toString(16);
}
return s;
}
function choice(x, y, z) {
return x & y ^ ~x & z;
}
function parity(x, y, z) {
return x ^ y ^ z;
}
function majority(x, y, z) {
return x & y ^ x & z ^ y & z;
}
function rotateLeft(value, bits) {
return value << bits | value >>> 32 - bits;
}
var w = new Uint32Array(80);
function sha1(bytes) {
if (!(bytes instanceof Uint8Array)) {
throw new TypeError('Input data must be a Uint8Array.');
}
// Allocate a buffer to fit the message data,
// the padding byte and the 64-bit message bit length
var buffer = new ArrayBuffer(align(bytes.byteLength + 9, 64));
var data = new Uint32Array(buffer);
// Copy the message data and set the padding byte
var dataU8 = new Uint8Array(buffer);
dataU8.set(bytes);
dataU8[bytes.byteLength] = 0x80;
// Swap bytes if neeeded
if (systemLittleEndian) {
for (var _i = 0, len = data.length; _i < len; ++_i) {
data[_i] = swap4(data[_i]);
}
}
var bitLength = 8 * bytes.byteLength;
// Store the message bit length as a 64-bit value
data[data.length - 2] = bitLength / Math.pow(2, 32);
data[data.length - 1] = bitLength;
// Set the initial hash state
var h0 = 0x67452301;
var h1 = 0xefcdab89;
var h2 = 0x98badcfe;
var h3 = 0x10325476;
var h4 = 0xc3d2e1f0;
/* eslint-disable one-var, one-var-declaration-per-line */
var i = void 0,
a = void 0,
b = void 0,
c = void 0,
d = void 0,
e = void 0,
tmp = void 0;
for (var offset = 0, _len = data.length; offset < _len; offset += 16) {
for (i = 0; i < 16; ++i) {
w[i] = data[offset + i];
}
for (i = 16; i < 80; ++i) {
w[i] = rotateLeft(w[i - 3] ^ w[i - 8] ^ w[i - 14] ^ w[i - 16], 1);
}
a = h0;
b = h1;
c = h2;
d = h3;
e = h4;
for (i = 0; i < 20; ++i) {
tmp = rotateLeft(a, 5) + choice(b, c, d) + e + 0x5a827999 + w[i] | 0;
e = d;
d = c;
c = rotateLeft(b, 30);
b = a;
a = tmp;
}
for (i = 20; i < 40; ++i) {
tmp = rotateLeft(a, 5) + parity(b, c, d) + e + 0x6ed9eba1 + w[i] | 0;
e = d;
d = c;
c = rotateLeft(b, 30);
b = a;
a = tmp;
}
for (i = 40; i < 60; ++i) {
tmp = rotateLeft(a, 5) + majority(b, c, d) + e + 0x8f1bbcdc + w[i] | 0;
e = d;
d = c;
c = rotateLeft(b, 30);
b = a;
a = tmp;
}
for (i = 60; i < 80; ++i) {
tmp = rotateLeft(a, 5) + parity(b, c, d) + e + 0xca62c1d6 + w[i] | 0;
e = d;
d = c;
c = rotateLeft(b, 30);
b = a;
a = tmp;
}
h0 = h0 + a | 0;
h1 = h1 + b | 0;
h2 = h2 + c | 0;
h3 = h3 + d | 0;
h4 = h4 + e | 0;
}
return '' + hexify(h0) + hexify(h1) + hexify(h2) + hexify(h3) + hexify(h4);
}
return sha1;
}));
});
var Seed = /** @class */ (function () {
function Seed(value) {
this.seed = value;
}
Seed.prototype.read = function (offset, length) {
return parseInt(this.seed.slice(offset, offset + length), 16);
};
return Seed;
}());
var BrowserAdapter = /** @class */ (function () {
function BrowserAdapter() {
}
BrowserAdapter.prototype.createSeed = function (value) {
return __awaiter(this, void 0, void 0, function () {
var encoder, buf, hash;
return __generator(this, function (_a) {
encoder = new TextEncoder();
buf = encoder.encode(value);
hash = tinySha1(buf);
return [2 /*return*/, new Seed(hash)];
});
});
};
return BrowserAdapter;
}());
var SVGNode = /** @class */ (function () {
function SVGNode(nodeName, attributes, childNode) {
if (childNode === void 0) { childNode = []; }
this.nodeName = nodeName;
this.attributes = attributes;
this.childNode = childNode;
}
SVGNode.prototype.appendChild = function () {
var _a;
var elements = [];
for (var _i = 0; _i < arguments.length; _i++) {
elements[_i] = arguments[_i];
}
(_a = this.childNode).push.apply(_a, elements);
};
SVGNode.prototype.toXML = function () {
var _this = this;
var attrs = Object.keys(this.attributes).map(function (name) { return " " + name + "=\"" + _this.attributes[name] + "\""; }).join("");
var inner = this.childNode.map(function (children) { return children.toXML(); }).join("");
return "<" + this.nodeName + attrs + ">" + inner + "</" + this.nodeName + ">";
};
return SVGNode;
}());
var Pattern = /** @class */ (function () {
function Pattern() {
this.width = 100;
this.height = 100;
}
Pattern.prototype.toSVG = function () {
var _a, _b, _c, _d;
var root = new SVGNode("svg", {
xmlns: "http://www.w3.org/2000/svg",
width: Math.floor(this.width),
height: Math.floor(this.height),
}, __spreadArrays(((_b = (_a = this.background) === null || _a === void 0 ? void 0 : _a.image) !== null && _b !== void 0 ? _b : []), ((_d = (_c = this.structure) === null || _c === void 0 ? void 0 : _c.image) !== null && _d !== void 0 ? _d : [])));
return root.toXML();
};
Pattern.prototype.toDataURL = function () {
var svg = this.toSVG();
return "data:image/svg+xml," + encodeURIComponent(svg);
};
return Pattern;
}());
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 isArrayish = function isArrayish(obj) {
if (!obj || typeof obj === 'string') {
return false;
}
return obj instanceof Array || Array.isArray(obj) ||
(obj.length >= 0 && (obj.splice instanceof Function ||
(Object.getOwnPropertyDescriptor(obj, (obj.length - 1)) && obj.constructor.name !== 'String')));
};
var simpleSwizzle = createCommonjsModule(function (module) {
var concat = Array.prototype.concat;
var slice = Array.prototype.slice;
var swizzle = module.exports = function swizzle(args) {
var results = [];
for (var i = 0, len = args.length; i < len; i++) {
var arg = args[i];
if (isArrayish(arg)) {
// http://jsperf.com/javascript-array-concat-vs-push/98
results = concat.call(results, slice.call(arg));
} else {
results.push(arg);
}
}
return results;
};
swizzle.wrap = function (fn) {
return function () {
return fn(swizzle(arguments));
};
};
});
var colorString = createCommonjsModule(function (module) {
/* MIT license */
var reverseNames = {};
// create a list of reverse color names
for (var name in colorName) {
if (colorName.hasOwnProperty(name)) {
reverseNames[colorName[name]] = name;
}
}
var cs = module.exports = {
to: {},
get: {}
};
cs.get = function (string) {
var prefix = string.substring(0, 3).toLowerCase();
var val;
var model;
switch (prefix) {
case 'hsl':
val = cs.get.hsl(string);
model = 'hsl';
break;
case 'hwb':
val = cs.get.hwb(string);
model = 'hwb';
break;
default:
val = cs.get.rgb(string);
model = 'rgb';
break;
}
if (!val) {
return null;
}
return {model: model, value: val};
};
cs.get.rgb = function (string) {
if (!string) {
return null;
}
var abbr = /^#([a-f0-9]{3,4})$/i;
var hex = /^#([a-f0-9]{6})([a-f0-9]{2})?$/i;
var rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/;
var per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/;
var keyword = /(\D+)/;
var rgb = [0, 0, 0, 1];
var match;
var i;
var hexAlpha;
if (match = string.match(hex)) {
hexAlpha = match[2];
match = match[1];
for (i = 0; i < 3; i++) {
// https://jsperf.com/slice-vs-substr-vs-substring-methods-long-string/19
var i2 = i * 2;
rgb[i] = parseInt(match.slice(i2, i2 + 2), 16);
}
if (hexAlpha) {
rgb[3] = Math.round((parseInt(hexAlpha, 16) / 255) * 100) / 100;
}
} else if (match = string.match(abbr)) {
match = match[1];
hexAlpha = match[3];
for (i = 0; i < 3; i++) {
rgb[i] = parseInt(match[i] + match[i], 16);
}
if (hexAlpha) {
rgb[3] = Math.round((parseInt(hexAlpha + hexAlpha, 16) / 255) * 100) / 100;
}
} else if (match = string.match(rgba)) {
for (i = 0; i < 3; i++) {
rgb[i] = parseInt(match[i + 1], 0);
}
if (match[4]) {
rgb[3] = parseFloat(match[4]);
}
} else if (match = string.match(per)) {
for (i = 0; i < 3; i++) {
rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);
}
if (match[4]) {
rgb[3] = parseFloat(match[4]);
}
} else if (match = string.match(keyword)) {
if (match[1] === 'transparent') {
return [0, 0, 0, 0];
}
rgb = colorName[match[1]];
if (!rgb) {
return null;
}
rgb[3] = 1;
return rgb;
} else {
return null;
}
for (i = 0; i < 3; i++) {
rgb[i] = clamp(rgb[i], 0, 255);
}
rgb[3] = clamp(rgb[3], 0, 1);
return rgb;
};
cs.get.hsl = function (string) {
if (!string) {
return null;
}
var hsl = /^hsla?\(\s*([+-]?(?:\d*\.)?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/;
var match = string.match(hsl);
if (match) {
var alpha = parseFloat(match[4]);
var h = (parseFloat(match[1]) + 360) % 360;
var s = clamp(parseFloat(match[2]), 0, 100);
var l = clamp(parseFloat(match[3]), 0, 100);
var a = clamp(isNaN(alpha) ? 1 : alpha, 0, 1);
return [h, s, l, a];
}
return null;
};
cs.get.hwb = function (string) {
if (!string) {
return null;
}
var hwb = /^hwb\(\s*([+-]?\d*[\.]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/;
var match = string.match(hwb);
if (match) {
var alpha = parseFloat(match[4]);
var h = ((parseFloat(match[1]) % 360) + 360) % 360;
var w = clamp(parseFloat(match[2]), 0, 100);
var b = clamp(parseFloat(match[3]), 0, 100);
var a = clamp(isNaN(alpha) ? 1 : alpha, 0, 1);
return [h, w, b, a];
}
return null;
};
cs.to.hex = function () {
var rgba = simpleSwizzle(arguments);
return (
'#' +
hexDouble(rgba[0]) +
hexDouble(rgba[1]) +
hexDouble(rgba[2]) +
(rgba[3] < 1
? (hexDouble(Math.round(rgba[3] * 255)))
: '')
);
};
cs.to.rgb = function () {
var rgba = simpleSwizzle(arguments);
return rgba.length < 4 || rgba[3] === 1
? 'rgb(' + Math.round(rgba[0]) + ', ' + Math.round(rgba[1]) + ', ' + Math.round(rgba[2]) + ')'
: 'rgba(' + Math.round(rgba[0]) + ', ' + Math.round(rgba[1]) + ', ' + Math.round(rgba[2]) + ', ' + rgba[3] + ')';
};
cs.to.rgb.percent = function () {
var rgba = simpleSwizzle(arguments);
var r = Math.round(rgba[0] / 255 * 100);
var g = Math.round(rgba[1] / 255 * 100);
var b = Math.round(rgba[2] / 255 * 100);
return rgba.length < 4 || rgba[3] === 1
? 'rgb(' + r + '%, ' + g + '%, ' + b + '%)'
: 'rgba(' + r + '%, ' + g + '%, ' + b + '%, ' + rgba[3] + ')';
};
cs.to.hsl = function () {
var hsla = simpleSwizzle(arguments);
return hsla.length < 4 || hsla[3] === 1
? 'hsl(' + hsla[0] + ', ' + hsla[1] + '%, ' + hsla[2] + '%)'
: 'hsla(' + hsla[0] + ', ' + hsla[1] + '%, ' + hsla[2] + '%, ' + hsla[3] + ')';
};
// 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)
cs.to.hwb = function () {
var hwba = simpleSwizzle(arguments);
var a = '';
if (hwba.length >= 4 && hwba[3] !== 1) {
a = ', ' + hwba[3];
}
return 'hwb(' + hwba[0] + ', ' + hwba[1] + '%, ' + hwba[2] + '%' + a + ')';
};
cs.to.keyword = function (rgb) {
return reverseNames[rgb.slice(0, 3)];
};
// helpers
function clamp(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;
}
});
var colorString_1 = colorString.to;
var colorString_2 = colorString.get;
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 _slice = [].slice;
var skippedModels = [
// to be honest, I don't really feel like keyword belongs in color convert, but eh.
'keyword'