/
jquery.xcolor.js
1383 lines (1088 loc) · 28.1 KB
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jquery.xcolor.js
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/**
* @license jQuery paging plugin v1.8.0 06/21/2010
* http://www.xarg.org/project/jquery-color-plugin-xcolor/
*
* Copyright (c) 2010, Robert Eisele (robert@xarg.org)
* Dual licensed under the MIT or GPL Version 2 licenses.
**/
// ([^a-z."/])m([^a-z:"])
(function ($, undefined) {
// http://www.w3.org/TR/css3-color/#svg-color
var color_names = {
"aliceblue": "f0f8ff",
"antiquewhite": "faebd7",
"aqua": "0ff",
"aquamarine": "7fffd4",
"azure": "f0ffff",
"beige": "f5f5dc",
"bisque": "ffe4c4",
"black": "000",
"blanchedalmond": "ffebcd",
"blue": "00f",
"blueviolet": "8a2be2",
"brown": "a52a2a",
"burlywood": "deb887",
"burntsienna": "ea7e5d",
"cadetblue": "5f9ea0",
"chartreuse": "7fff00",
"chocolate": "d2691e",
"coral": "ff7f50",
"cornflowerblue": "6495ed",
"cornsilk": "fff8dc",
"crimson": "dc143c",
"cyan": "0ff",
"darkblue": "00008b",
"darkcyan": "008b8b",
"darkgoldenrod": "b8860b",
"darkgray": "a9a9a9",
"darkgreen": "006400",
"darkgrey": "a9a9a9",
"darkkhaki": "bdb76b",
"darkmagenta": "8b008b",
"darkolivegreen": "556b2f",
"darkorange": "ff8c00",
"darkorchid": "9932cc",
"darkred": "8b0000",
"darksalmon": "e9967a",
"darkseagreen": "8fbc8f",
"darkslateblue": "483d8b",
"darkslategray": "2f4f4f",
"darkslategrey": "2f4f4f",
"darkturquoise": "00ced1",
"darkviolet": "9400d3",
"deeppink": "ff1493",
"deepskyblue": "00bfff",
"dimgray": "696969",
"dimgrey": "696969",
"dodgerblue": "1e90ff",
"firebrick": "b22222",
"floralwhite": "fffaf0",
"forestgreen": "228b22",
"fuchsia": "f0f",
"gainsboro": "dcdcdc",
"ghostwhite": "f8f8ff",
"gold": "ffd700",
"goldenrod": "daa520",
"gray": "808080",
"green": "008000",
"greenyellow": "adff2f",
"grey": "808080",
"honeydew": "f0fff0",
"hotpink": "ff69b4",
"indianred": "cd5c5c",
"indigo": "4b0082",
"ivory": "fffff0",
"khaki": "f0e68c",
"lavender": "e6e6fa",
"lavenderblush": "fff0f5",
"lawngreen": "7cfc00",
"lemonchiffon": "fffacd",
"lightblue": "add8e6",
"lightcoral": "f08080",
"lightcyan": "e0ffff",
"lightgoldenrodyellow": "fafad2",
"lightgray": "d3d3d3",
"lightgreen": "90ee90",
"lightgrey": "d3d3d3",
"lightpink": "ffb6c1",
"lightsalmon": "ffa07a",
"lightseagreen": "20b2aa",
"lightskyblue": "87cefa",
"lightslategray": "789",
"lightslategrey": "789",
"lightsteelblue": "b0c4de",
"lightyellow": "ffffe0",
"lime": "0f0",
"limegreen": "32cd32",
"linen": "faf0e6",
"magenta": "f0f",
"maroon": "800000",
"mediumaquamarine": "66cdaa",
"mediumblue": "0000cd",
"mediumorchid": "ba55d3",
"mediumpurple": "9370db",
"mediumseagreen": "3cb371",
"mediumslateblue": "7b68ee",
"mediumspringgreen": "00fa9a",
"mediumturquoise": "48d1cc",
"mediumvioletred": "c71585",
"midnightblue": "191970",
"mintcream": "f5fffa",
"mistyrose": "ffe4e1",
"moccasin": "ffe4b5",
"navajowhite": "ffdead",
"navy": "000080",
"oldlace": "fdf5e6",
"olive": "808000",
"olivedrab": "6b8e23",
"orange": "ffa500",
"orangered": "ff4500",
"orchid": "da70d6",
"palegoldenrod": "eee8aa",
"palegreen": "98fb98",
"paleturquoise": "afeeee",
"palevioletred": "db7093",
"papayawhip": "ffefd5",
"peachpuff": "ffdab9",
"peru": "cd853f",
"pink": "ffc0cb",
"plum": "dda0dd",
"powderblue": "b0e0e6",
"purple": "800080",
"red": "f00",
"rosybrown": "bc8f8f",
"royalblue": "4169e1",
"saddlebrown": "8b4513",
"salmon": "fa8072",
"sandybrown": "f4a460",
"seagreen": "2e8b57",
"seashell": "fff5ee",
"sienna": "a0522d",
"silver": "c0c0c0",
"skyblue": "87ceeb",
"slateblue": "6a5acd",
"slategray": "708090",
"slategrey": "708090",
"snow": "fffafa",
"springgreen": "00ff7f",
"steelblue": "4682b4",
"tan": "d2b48c",
"teal": "008080",
"thistle": "d8bfd8",
"tomato": "ff6347",
"turquoise": "40e0d0",
"violet": "ee82ee",
"wheat": "f5deb3",
"white": "fff",
"whitesmoke": "f5f5f5",
"yellow": "ff0",
"yellowgreen": "9acd32"
}, _RGBAtoCSS;
/**
* @constructor
*/
function xColor(color) {
/**
* normalize function
* @param {(number|string)=} n (optional)
* @param {(number|string)=} s (optional)
*/
function _normalize(n, s) {
var m;
if (undefined !== n) {
n = parseFloat(n);
}
if (undefined === s) {
s = 255;
m = 255;
} else if (1 === s) {
if (undefined === n || 1 === n) {
return 1;
}
s = 100;
m = 1;
} else {
m = s;
}
if (isNaN(n) || n <= 0) {
return 0;
}
if (s < n) {
return m;
}
if (n < 1 || 1 === s) {
if (1 === m) {
return n;
} else {
return (n * m) | 0;
}
}
return n * m / s;
}
function _hsl(h,s,l) {
h = _normalize(h, 360) / 360;
s = _normalize(s, 1);
l = _normalize(l, 1);
if (0 === s) {
l = Math.round(255 * l);
return [l, l, l];
}
function _hue(v1, v2, h) {
h = ++h % 1;
if (6 * h < 1) return v1 + (v2 - v1) * 6 * h;
if (2 * h < 1) return v2;
if (3 * h < 2) return v1 + (v2 - v1) * (4 - 6 * h);
return v1;
}
var v = l < .5 ? (l + l * s) : (l + s - l * s);
var m = l + l - v;
return [
Math.round(255 *_hue(m, v, h + 1 / 3)),
Math.round(255 *_hue(m, v, h)),
Math.round(255 *_hue(m, v, h - 1 / 3)) ];
}
function _hsv(h,s,v) {
h = _normalize(h, 360) / 60;
s = _normalize(s, 1);
v = _normalize(v, 1);
var hi = h|0;
var f = h - hi;
var p = Math.round(255 * v * (1 - s));
var q = Math.round(255 * v * (1 - s * f));
var t = Math.round(255 * v * (1 - s * (1 - f)));
v = Math.round(255 * v);
switch(hi) {
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];
}
return [v, t, p];
}
this["setColor"] = function (color) {
this.success = true;
if ("number" === typeof color) {
this["a"] =((color >> 24) & 0xff) / 255;
this["r"] = (color >> 16) & 0xff;
this["g"] = (color >> 8) & 0xff;
this["b"] = (color ) & 0xff;
return;
}
while ("object" === typeof color) {
if (0 in color && 1 in color && 2 in color) {
this["a"] = _normalize(color[3], 1);
this["r"] = _normalize(color[0]);
this["g"] = _normalize(color[1]);
this["b"] = _normalize(color[2]);
return;
} else if ('r' in color && 'g' in color && 'b' in color) {
this["a"] = _normalize(color["a"], 1);
this["r"] = _normalize(color["r"]);
this["g"] = _normalize(color["g"]);
this["b"] = _normalize(color["b"]);
return;
} else if ('h' in color && 's' in color) {
var rgb;
if ('l' in color) {
rgb = _hsl(color["h"], color["s"], color["l"]);
} else if ('v' in color) {
rgb = _hsv(color["h"], color["s"], color["v"]);
} else if ('b' in color) {
rgb = _hsv(color["h"], color["s"], color["b"]);
} else {
break;
}
this["a"] = _normalize(color["a"], 1);
this["r"] = rgb[0];
this["g"] = rgb[1];
this["b"] = rgb[2];
return;
}
break;
}
if ("string" === typeof color) {
color = color.toLowerCase().replace(/[^a-z0-9,.()#%]/g, '');
var part, c;
if ('transparent' === color) {
this["a"] = /* void */
this["r"] = /* void */
this["g"] = /* void */
this["b"] = 0;
return;
}
if ('rand' === color) {
c = Math.random() * 0xffffff|0;
this["a"] = 1;
this["r"] = ((c >> 16) & 0xff);
this["g"] = ((c >> 8) & 0xff);
this["b"] = ((c ) & 0xff);
return;
}
if (undefined !== color_names[color]) {
color = '#' + color_names[color];
}
// #ff9000, #ff0000
if ((part = /^#?([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/.exec(color))) {
this["a"] = 1;
this["r"] = parseInt(part[1], 16);
this["g"] = parseInt(part[2], 16);
this["b"] = parseInt(part[3], 16);
return;
}
// #f00, fff
if ((part = /^#?([0-9a-f])([0-9a-f])([0-9a-f])$/.exec(color))) {
this["a"] = 1;
this["r"] = parseInt(part[1] + part[1], 16);
this["g"] = parseInt(part[2] + part[2], 16);
this["b"] = parseInt(part[3] + part[3], 16);
return;
}
// rgb(1, 234, 56)
if ((part = /^rgba?\((\d{1,3}),(\d{1,3}),(\d{1,3})(,([0-9.]+))?\)$/.exec(color))) {
this["a"] = _normalize(part[5], 1);
this["r"] = _normalize(part[1]);
this["g"] = _normalize(part[2]);
this["b"] = _normalize(part[3]);
return;
}
// rgb(66%, 55%, 44%) in [0,100]%, [0,100]%, [0,100]%
if ((part = /^rgba?\(([0-9.]+\%),([0-9.]+\%),([0-9.]+\%)(,([0-9.]+)\%?)?\)$/.exec(color))) {
this["a"] = _normalize(part[5], 1);
this["r"] = Math.round(2.55 * _normalize(part[1], 100));
this["g"] = Math.round(2.55 * _normalize(part[2], 100));
this["b"] = Math.round(2.55 * _normalize(part[3], 100));
return;
}
// hsv(64, 40, 16) in [0, 360], [0,100], [0,100]
if ((part = /^hs([bvl])a?\((\d{1,3}),(\d{1,3}),(\d{1,3})(,([0-9.]+))?\)$/.exec(color))) {
var func;
if ("l" === part[1]) {
func = _hsl;
} else {
func = _hsv;
}
c = func(parseInt(part[2], 10), parseInt(part[3], 10), parseInt(part[4], 10));
this["a"] = _normalize(part[6], 1);
this["r"] = c[0];
this["g"] = c[1];
this["b"] = c[2];
return;
}
// 1, 234, 56
if ((part = /^(\d{1,3}),(\d{1,3}),(\d{1,3})(,([0-9.]+))?$/.exec(color))) {
this["a"] = _normalize(part[5], 1);
this["r"] = _normalize(part[1]);
this["g"] = _normalize(part[2]);
this["b"] = _normalize(part[3]);
return;
}
}
this.success = false;
};
this["getColor"] = function (type) {
if (undefined !== type) switch (type.toLowerCase()) {
case "rgb":
return this["getRGB"]();
case "hsv":
case "hsb":
return this["getHSV"]();
case "hsl":
return this["getHSL"]();
case "int":
return this["getInt"]();
case "array":
return this["getArray"]();
case "fraction":
return this["getFraction"]();
case "css":
case "style":
return this["getCSS"]();
case "name":
return this["getName"]();
}
return this["getHex"]();
};
this["getRGB"] = function () {
if (this.success) {
return {
"r": this["r"],
"g": this["g"],
"b": this["b"],
"a": this["a"]
};
}
return null;
};
this["getCSS"] = function () {
if (this.success) {
if (0 === this["a"]) {
return "transparent";
}
if (1 === this["a"]) {
return 'rgb(' + this["r"] + ',' + this["g"] + ',' + this["b"] + ')';
}
return _RGBAtoCSS(this["r"], this["g"], this["b"], this["a"]);
}
return null;
};
this["getArray"] = function () {
if (this.success) {
return [this["r"], this["g"], this["b"], 100 * this["a"]|0];
}
return null;
};
this["getName"] = function () {
if (this.success) {
var lowest = null;
var lowest_ndx;
var table = color_names;
var a = this["getHSL"]();
for (var i in table) {
/* We do not handle transparency */
var b = new xColor(table[i])["getHSL"]();
var tmp = Math.sqrt(.5 * (a["h"] - b["h"]) * (a["h"] - b["h"]) + .5 * (a["s"] - b["s"]) * (a["s"] - b["s"]) + (a["l"] - b["l"]) * (a["l"] - b["l"]));
if (null === lowest || tmp < lowest) {
lowest = tmp;
lowest_ndx = i;
}
}
return lowest_ndx;
}
return null;
};
this["getFraction"] = function () {
if (this.success) {
return {
"r": this["r"] / 255,
"g": this["g"] / 255,
"b": this["b"] / 255,
"a": this["a"]
};
}
return null;
};
this["getHSL"] = function () {
// inspiration: http://130.113.54.154/~monger/hsl-rgb.html
if (this.success) {
var r = this["r"] / 255;
var g = this["g"] / 255;
var b = this["b"] / 255;
var min = Math.min(r, g, b);
var max = Math.max(r, g, b);
var delta = max - min;
var h, s, l = (max + min) / 2;
if (0 === delta) {
h = 0;
s = 0;
} else {
if (r === max) {
h = (g - b) / delta;
} else if (g === max) {
h = 2 + (b - r) / delta;
} else {
h = 4 + (r - g) / delta;
}
s = delta / (l < .5 ? max + min : 2 - max - min);
}
return {
"h": Math.round( 60 * ((6 + h) % 6)),
"s": Math.round(100 * s),
"l": Math.round(100 * l),
"a": this["a"]
};
}
return null;
};
this["getHSV"] = function () {
if (this.success) {
var r = this["r"] / 255;
var g = this["g"] / 255;
var b = this["b"] / 255;
/*
if (r > g) {
max = r;
min = g;
} else {
min = r;
max = g;
}
if (b > max)
max = b;
if (b < min)
min = b;
*/
var min = Math.min(r, g, b);
var max = Math.max(r, g, b);
var delta = max - min;
var h, s, v = max;
if (0 === max) {
s = 0;
} else {
s = delta / max;
}
if (0 === delta) {
h = 0;
} else if (r === max) {
h = (g - b) / delta;
} else if (g === max) {
h = 2 + (b - r) / delta;
} else {
h = 4 + (r - g) / delta;
}
return {
"h": Math.round( 60 * ((6 + h) % 6)),
"s": Math.round(100 * s),
"v": Math.round(100 * v),
"a": this["a"]
};
}
return null;
};
this["getHex"] = function () {
if (this.success) {
var chars = "0123456789abcdef";
var r1 = this["r"] >> 4;
var g1 = this["g"] >> 4;
var b1 = this["b"] >> 4;
var r2 = this["r"] & 0xf;
var g2 = this["g"] & 0xf;
var b2 = this["b"] & 0xf;
return '#'
+ chars.charAt(r1) + chars.charAt(r2)
+ chars.charAt(g1) + chars.charAt(g2)
+ chars.charAt(b1) + chars.charAt(b2);
}
return null;
};
this["getInt"] = function (alpha) {
if (this.success) {
if (undefined !== alpha) {
return ((100 * this["a"]|0) << 24 ^ this["r"] << 16 ^ this["g"] << 8 ^ this["b"]);
}
return (this["r"] << 16 ^ this["g"] << 8 ^ this["b"]) & 0xffffff;
}
return null;
};
this["toString"] = function () {
return this["getHex"]();
};
this["setColor"](color);
}
$["each"](['color', 'backgroundColor', 'borderColor', 'borderTopColor', 'borderBottomColor', 'borderLeftColor', 'borderRightColor', 'outlineColor'], function(i, attr) {
$["cssHooks"][attr] = {
"set": function(elem, value) {
elem["style"][attr] = (new xColor(value))["getCSS"]();
}
};
$["fx"]["step"][attr] = function(fx) {
if (undefined === fx["xinit"]) {
if ("string" === typeof fx["end"] && -1 !== fx["end"].indexOf(";")) {
var x, arr = fx["end"].split(";");
if (arr.length > 2) {
for (x in arr) {
if (-1 === arr[x].indexOf('native')) {
arr[x] = new xColor(arr[x]);
} else {
arr[x] = findColor(fx["elem"], attr);
}
}
fx["start"] = null;
fx["end"] = arr;
} else {
fx["start"] = new xColor(arr[0]);
fx["end"] = new xColor(arr[1]);
}
} else {
fx["start"] = findColor(fx["elem"], attr);
fx["end"] = new xColor(fx["end"]);
}
fx["xinit"] = 1;
}
var S = fx["start"];
var E = fx["end"];
var P = fx["pos"];
if (null === S) {
var m = P * (E.length - 1),
n = P < 1 ? m | 0 : E.length - 2;
S = E[n];
E = E[n + 1];
P = m - n;
}
fx["elem"]["style"][attr] =_RGBAtoCSS(
S["r"] + P * (E["r"] - S["r"])|0,
S["g"] + P * (E["g"] - S["g"])|0,
S["b"] + P * (E["b"] - S["b"])|0,
S["a"] + P * (E["a"] - S["a"])
);
}
});
$(function() {
var div = document.createElement("div"),
div_style = div["style"];
_RGBAtoCSS = function(r, g, b, a) {
return "rgba(" + r + "," + g + "," + b + "," + a + ")";
};
div_style["cssText"] = "background-color:rgba(1,1,1,.5)";
if (!($["support"]["rgba"] = div_style["backgroundColor"].indexOf("rgba") > -1)) {
_RGBAtoCSS = function(r, g, b) {
return "rgb(" + r + "," + g + "," + b + ")";
};
}
});
function findColor(elem, attr) {
var color = "";
do {
color = $["css"](elem, attr);
if ("" !== color && "transparent" !== color && "rgba(0, 0, 0, 0)" !== color || $["nodeName"](elem, "body")) break;
} while ((elem = elem["parentNode"]));
if ("" === color) {
if ($["support"]["rgba"]) {
color = "transparent";
} else if ("backgroundColor" === attr) {
color = "white";
} else {
color = "black";
}
}
return new xColor(color);
}
/**
* @constructor
*/
function xColorMix() {
this["test"] = function (col) {
var c = new xColor(col);
if (c.success) {
return c;
}
return null;
};
this["red"] = function (col) {
var c = new xColor(col);
if (c.success) {
c["g"] = 0xff;
c["b"] = 0xff;
return c;
}
return null;
};
this["blue"] = function (col) {
var c = new xColor(col);
if (c.success) {
c["r"] = 0xff;
c["g"] = 0xff;
return c;
}
return null;
};
this["green"] = function (col) {
var c = new xColor(col);
if (c.success) {
c["r"] = 0xff;
c["b"] = 0xff;
return c;
}
return null;
};
this["sepia"] = function(col) {
var c = new xColor(col);
// Microsoft's sepia function http://msdn.microsoft.com/en-us/magazine/cc163866.aspx
if (c.success) {
var r = c["r"], g = c["g"], b = c["b"];
c["r"] = Math.round(r * .393 + g * .769 + b * .189);
c["g"] = Math.round(r * .349 + g * .686 + b * .168);
c["b"] = Math.round(r * .272 + g * .534 + b * .131);
return c;
}
return null;
};
this["random"] = function () {
return new xColor([
(255 * Math.random())|0,
(255 * Math.random())|0,
(255 * Math.random())|0
]);
};
this["inverse"] = function (col) {
var c = new xColor(col);
if (c.success) {
c["r"]^= 0xff;
c["g"]^= 0xff;
c["b"]^= 0xff;
return c;
}
return null;
};
this["opacity"] = function (x, y, o) {
var a = new xColor(x);
var b = new xColor(y);
if (a.success & b.success) {
if (o > 1) {
o/= 100;
}
o = Math.max(o - 1 + b["a"], 0);
a["r"] = Math.round((b["r"] - a["r"]) * o + a["r"]);
a["g"] = Math.round((b["g"] - a["g"]) * o + a["g"]);
a["b"] = Math.round((b["b"] - a["b"]) * o + a["b"]);
return a;
}
return null;
};
this["greyfilter"] = function (col, formula) {
var v, c = new xColor(col);
if (c.success) {
switch (formula) {
case 1:
// My own formula
v = .35 + 13 * (c["r"] + c["g"] + c["b"]) / 60;
break;
case 2:
// Sun's formula: (1 - avg) / (100 / 35) + avg)
v = (13 * (c["r"] + c["g"] + c["b"]) + 5355) / 60;
break;
default:
v = c["r"] * .3 + c["g"] * .59 + c["b"] * .11;
}
c["r"] = c["g"] = c["b"] = Math.min(v|0, 255);
return c;
}
return null;
};
this["webround"] = function (col) {
var c = new xColor(col);
if (c.success) {
if ((c["r"]+= 0x33 - c["r"] % 0x33) > 0xff) c["r"] = 0xff;
if ((c["g"]+= 0x33 - c["g"] % 0x33) > 0xff) c["g"] = 0xff;
if ((c["b"]+= 0x33 - c["b"] % 0x33) > 0xff) c["b"] = 0xff;
return c;
}
return null;
};
this["distance"] = function (x, y) {
var a = new xColor(x);
var b = new xColor(y);
if (a.success & b.success) {
// Approximation attempt of http://www.compuphase.com/cmetric.htm
return Math.sqrt(3 * (b["r"] - a["r"]) * (b["r"] - a["r"]) + 4 * (b["g"] - a["g"]) * (b["g"] - a["g"]) + 2 * (b["b"] - a["b"]) * (b["b"] - a["b"]));
}
return null;
};
this["readable"] = function (bg, col, size) {
// good ressource: http://www.hgrebdes.com/colour/spectrum/colourvisibility.html
var a = new xColor(col);
var b = new xColor(bg);
size = size || 10;
if (a.success & b.success) {
// but here's my version based on the idea:
var diff = b["r"] * 0.299 + b["g"] * 0.587 + b["b"] * 0.114 -
a["r"] * 0.299 - a["g"] * 0.587 - a["b"] * 0.114;
return !((diff < (1.5 + 141.162 * Math.pow(0.975, size)))
&& (diff > (-.5 - 154.709 * Math.pow(0.990, size))));
}
return null;
};
this["combine"] = function (x, y) {
var a = new xColor(x);
var b = new xColor(y);
if (a.success & b.success) {
a["r"]^= b["r"];
a["g"]^= b["g"];
a["b"]^= b["b"];
return a;
}
return null;
};
this["breed"] = function (x, y) {
var a = new xColor(x);
var b = new xColor(y);
var mask = 0, i = 6;
if (a.success & b.success) {
while (i--) {
if (Math.random() < .5) {
mask|= 0x0f << (i << 2);
}
}
a["r"] = (a["r"] & ((mask >> 0x10) & 0xff)) | (b["r"] & (((mask >> 0x10) & 0xff) ^ 0xff));
a["g"] = (a["g"] & ((mask >> 0x08) & 0xff)) | (b["g"] & (((mask >> 0x08) & 0xff) ^ 0xff));
a["b"] = (a["b"] & ((mask >> 0x00) & 0xff)) | (b["b"] & (((mask >> 0x00) & 0xff) ^ 0xff));
return a;
}
return null;
};
this["additive"] = function (x, y) {
var a = new xColor(x);
var b = new xColor(y);
if (a.success & b.success) {
if ((a["r"]+= b["r"]) > 0xff) a["r"] = 0xff;
if ((a["g"]+= b["g"]) > 0xff) a["g"] = 0xff;
if ((a["b"]+= b["b"]) > 0xff) a["b"] = 0xff;
return a;
}
return null;
};
this["subtractive"] = function (x, y) {
var a = new xColor(x);
var b = new xColor(y);