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233 lines
6.9 KiB
JavaScript
233 lines
6.9 KiB
JavaScript
12 years ago
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define("dojo/colors", ["./_base/kernel", "./_base/lang", "./_base/Color", "./_base/array"], function(dojo, lang, Color, ArrayUtil){
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// module:
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// dojo/colors
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/*=====
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return {
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// summary:
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// Color utilities, extending Base dojo.Color
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};
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=====*/
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var ColorExt = {};
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lang.setObject("dojo.colors", ColorExt);
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//TODO: this module appears to break naming conventions
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// this is a standard conversion prescribed by the CSS3 Color Module
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var hue2rgb = function(m1, m2, h){
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if(h < 0){ ++h; }
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if(h > 1){ --h; }
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var h6 = 6 * h;
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if(h6 < 1){ return m1 + (m2 - m1) * h6; }
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if(2 * h < 1){ return m2; }
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if(3 * h < 2){ return m1 + (m2 - m1) * (2 / 3 - h) * 6; }
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return m1;
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};
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// Override base Color.fromRgb with the impl in this module
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dojo.colorFromRgb = Color.fromRgb = function(/*String*/ color, /*dojo/_base/Color?*/ obj){
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// summary:
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// get rgb(a) array from css-style color declarations
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// description:
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// this function can handle all 4 CSS3 Color Module formats: rgb,
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// rgba, hsl, hsla, including rgb(a) with percentage values.
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var m = color.toLowerCase().match(/^(rgba?|hsla?)\(([\s\.\-,%0-9]+)\)/);
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if(m){
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var c = m[2].split(/\s*,\s*/), l = c.length, t = m[1], a;
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if((t == "rgb" && l == 3) || (t == "rgba" && l == 4)){
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var r = c[0];
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if(r.charAt(r.length - 1) == "%"){
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// 3 rgb percentage values
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a = ArrayUtil.map(c, function(x){
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return parseFloat(x) * 2.56;
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});
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if(l == 4){ a[3] = c[3]; }
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return Color.fromArray(a, obj); // dojo/_base/Color
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}
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return Color.fromArray(c, obj); // dojo/_base/Color
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}
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if((t == "hsl" && l == 3) || (t == "hsla" && l == 4)){
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// normalize hsl values
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var H = ((parseFloat(c[0]) % 360) + 360) % 360 / 360,
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S = parseFloat(c[1]) / 100,
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L = parseFloat(c[2]) / 100,
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// calculate rgb according to the algorithm
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// recommended by the CSS3 Color Module
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m2 = L <= 0.5 ? L * (S + 1) : L + S - L * S,
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m1 = 2 * L - m2;
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a = [
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hue2rgb(m1, m2, H + 1 / 3) * 256,
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hue2rgb(m1, m2, H) * 256,
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hue2rgb(m1, m2, H - 1 / 3) * 256,
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1
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];
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if(l == 4){ a[3] = c[3]; }
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return Color.fromArray(a, obj); // dojo/_base/Color
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}
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}
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return null; // dojo/_base/Color
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};
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var confine = function(c, low, high){
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// summary:
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// sanitize a color component by making sure it is a number,
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// and clamping it to valid values
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c = Number(c);
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return isNaN(c) ? high : c < low ? low : c > high ? high : c; // Number
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};
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Color.prototype.sanitize = function(){
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// summary:
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// makes sure that the object has correct attributes
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var t = this;
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t.r = Math.round(confine(t.r, 0, 255));
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t.g = Math.round(confine(t.g, 0, 255));
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t.b = Math.round(confine(t.b, 0, 255));
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t.a = confine(t.a, 0, 1);
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return this; // dojo/_base/Color
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};
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ColorExt.makeGrey = Color.makeGrey = function(/*Number*/ g, /*Number?*/ a){
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// summary:
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// creates a greyscale color with an optional alpha
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return Color.fromArray([g, g, g, a]); // dojo/_base/Color
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};
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// mixin all CSS3 named colors not already in _base, along with SVG 1.0 variant spellings
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lang.mixin(Color.named, {
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"aliceblue": [240,248,255],
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"antiquewhite": [250,235,215],
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"aquamarine": [127,255,212],
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"azure": [240,255,255],
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"beige": [245,245,220],
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"bisque": [255,228,196],
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"blanchedalmond": [255,235,205],
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"blueviolet": [138,43,226],
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"brown": [165,42,42],
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"burlywood": [222,184,135],
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"cadetblue": [95,158,160],
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"chartreuse": [127,255,0],
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"chocolate": [210,105,30],
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"coral": [255,127,80],
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"cornflowerblue": [100,149,237],
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"cornsilk": [255,248,220],
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"crimson": [220,20,60],
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"cyan": [0,255,255],
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"darkblue": [0,0,139],
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"darkcyan": [0,139,139],
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"darkgoldenrod": [184,134,11],
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"darkgray": [169,169,169],
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"darkgreen": [0,100,0],
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"darkgrey": [169,169,169],
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"darkkhaki": [189,183,107],
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"darkmagenta": [139,0,139],
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"darkolivegreen": [85,107,47],
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"darkorange": [255,140,0],
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"darkorchid": [153,50,204],
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"darkred": [139,0,0],
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"darksalmon": [233,150,122],
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"darkseagreen": [143,188,143],
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"darkslateblue": [72,61,139],
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"darkslategray": [47,79,79],
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"darkslategrey": [47,79,79],
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"darkturquoise": [0,206,209],
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"darkviolet": [148,0,211],
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"deeppink": [255,20,147],
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"deepskyblue": [0,191,255],
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"dimgray": [105,105,105],
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"dimgrey": [105,105,105],
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"dodgerblue": [30,144,255],
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"firebrick": [178,34,34],
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"floralwhite": [255,250,240],
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"forestgreen": [34,139,34],
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"gainsboro": [220,220,220],
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"ghostwhite": [248,248,255],
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"gold": [255,215,0],
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"goldenrod": [218,165,32],
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"greenyellow": [173,255,47],
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"grey": [128,128,128],
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"honeydew": [240,255,240],
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"hotpink": [255,105,180],
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"indianred": [205,92,92],
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"indigo": [75,0,130],
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"ivory": [255,255,240],
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"khaki": [240,230,140],
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"lavender": [230,230,250],
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"lavenderblush": [255,240,245],
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"lawngreen": [124,252,0],
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"lemonchiffon": [255,250,205],
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"lightblue": [173,216,230],
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"lightcoral": [240,128,128],
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"lightcyan": [224,255,255],
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"lightgoldenrodyellow": [250,250,210],
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"lightgray": [211,211,211],
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"lightgreen": [144,238,144],
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"lightgrey": [211,211,211],
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"lightpink": [255,182,193],
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"lightsalmon": [255,160,122],
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"lightseagreen": [32,178,170],
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"lightskyblue": [135,206,250],
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"lightslategray": [119,136,153],
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"lightslategrey": [119,136,153],
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"lightsteelblue": [176,196,222],
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"lightyellow": [255,255,224],
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"limegreen": [50,205,50],
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"linen": [250,240,230],
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"magenta": [255,0,255],
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"mediumaquamarine": [102,205,170],
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"mediumblue": [0,0,205],
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"mediumorchid": [186,85,211],
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"mediumpurple": [147,112,219],
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"mediumseagreen": [60,179,113],
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"mediumslateblue": [123,104,238],
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"mediumspringgreen": [0,250,154],
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"mediumturquoise": [72,209,204],
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"mediumvioletred": [199,21,133],
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"midnightblue": [25,25,112],
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"mintcream": [245,255,250],
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"mistyrose": [255,228,225],
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"moccasin": [255,228,181],
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"navajowhite": [255,222,173],
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"oldlace": [253,245,230],
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"olivedrab": [107,142,35],
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"orange": [255,165,0],
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"orangered": [255,69,0],
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"orchid": [218,112,214],
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"palegoldenrod": [238,232,170],
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"palegreen": [152,251,152],
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"paleturquoise": [175,238,238],
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"palevioletred": [219,112,147],
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"papayawhip": [255,239,213],
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"peachpuff": [255,218,185],
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"peru": [205,133,63],
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"pink": [255,192,203],
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"plum": [221,160,221],
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"powderblue": [176,224,230],
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"rosybrown": [188,143,143],
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"royalblue": [65,105,225],
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"saddlebrown": [139,69,19],
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"salmon": [250,128,114],
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"sandybrown": [244,164,96],
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"seagreen": [46,139,87],
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"seashell": [255,245,238],
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"sienna": [160,82,45],
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"skyblue": [135,206,235],
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"slateblue": [106,90,205],
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"slategray": [112,128,144],
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"slategrey": [112,128,144],
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"snow": [255,250,250],
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"springgreen": [0,255,127],
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"steelblue": [70,130,180],
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"tan": [210,180,140],
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"thistle": [216,191,216],
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"tomato": [255,99,71],
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"turquoise": [64,224,208],
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"violet": [238,130,238],
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"wheat": [245,222,179],
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"whitesmoke": [245,245,245],
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"yellowgreen": [154,205,50]
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});
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return Color; // TODO: return ColorExt, not Color
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});
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