git.pond.sub.org Git - eow/blob - static/dojo-release-1.1.1/dojo/colors.js

   1 if(!dojo._hasResource["dojo.colors"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
   2 dojo._hasResource["dojo.colors"] = true;
   3 dojo.provide("dojo.colors");
   4
   5 //TODO: this module appears to break naming conventions
   6
   7 /*=====
   8 dojo.colors = {
   9         // summary: Color utilities
  10 }
  11 =====*/
  12
  13 (function(){
  14         // this is a standard conversion prescribed by the CSS3 Color Module
  15         var hue2rgb = function(m1, m2, h){
  16                 if(h < 0){ ++h; }
  17                 if(h > 1){ --h; }
  18                 var h6 = 6 * h;
  19                 if(h6 < 1){ return m1 + (m2 - m1) * h6; }
  20                 if(2 * h < 1){ return m2; }
  21                 if(3 * h < 2){ return m1 + (m2 - m1) * (2 / 3 - h) * 6; }
  22                 return m1;
  23         };
  24
  25         dojo.colorFromRgb = function(/*String*/ color, /*dojo.Color?*/ obj){
  26                 // summary:
  27                 //              get rgb(a) array from css-style color declarations
  28                 // description:
  29                 //              this function can handle all 4 CSS3 Color Module formats: rgb,
  30                 //              rgba, hsl, hsla, including rgb(a) with percentage values.
  31                 var m = color.toLowerCase().match(/^(rgba?|hsla?)\(([\s\.\-,%0-9]+)\)/);
  32                 if(m){
  33                         var c = m[2].split(/\s*,\s*/), l = c.length, t = m[1];
  34                         if((t == "rgb" && l == 3) || (t == "rgba" && l == 4)){
  35                                 var r = c[0];
  36                                 if(r.charAt(r.length - 1) == "%"){
  37                                         // 3 rgb percentage values
  38                                         var a = dojo.map(c, function(x){
  39                                                 return parseFloat(x) * 2.56;
  40                                         });
  41                                         if(l == 4){ a[3] = c[3]; }
  42                                         return dojo.colorFromArray(a, obj);     // dojo.Color
  43                                 }
  44                                 return dojo.colorFromArray(c, obj);     // dojo.Color
  45                         }
  46                         if((t == "hsl" && l == 3) || (t == "hsla" && l == 4)){
  47                                 // normalize hsl values
  48                                 var H = ((parseFloat(c[0]) % 360) + 360) % 360 / 360,
  49                                         S = parseFloat(c[1]) / 100,
  50                                         L = parseFloat(c[2]) / 100,
  51                                         // calculate rgb according to the algorithm
  52                                         // recommended by the CSS3 Color Module
  53                                         m2 = L <= 0.5 ? L * (S + 1) : L + S - L * S,
  54                                         m1 = 2 * L - m2,
  55                                         a = [hue2rgb(m1, m2, H + 1 / 3) * 256,
  56                                                 hue2rgb(m1, m2, H) * 256, hue2rgb(m1, m2, H - 1 / 3) * 256, 1];
  57                                 if(l == 4){ a[3] = c[3]; }
  58                                 return dojo.colorFromArray(a, obj);     // dojo.Color
  59                         }
  60                 }
  61                 return null;    // dojo.Color
  62         };
  63
  64         var confine = function(c, low, high){
  65                 // summary:
  66                 //              sanitize a color component by making sure it is a number,
  67                 //              and clamping it to valid values
  68                 c = Number(c);
  69                 return isNaN(c) ? high : c < low ? low : c > high ? high : c;   // Number
  70         };
  71
  72         dojo.Color.prototype.sanitize = function(){
  73                 // summary: makes sure that the object has correct attributes
  74                 var t = this;
  75                 t.r = Math.round(confine(t.r, 0, 255));
  76                 t.g = Math.round(confine(t.g, 0, 255));
  77                 t.b = Math.round(confine(t.b, 0, 255));
  78                 t.a = confine(t.a, 0, 1);
  79                 return this;    // dojo.Color
  80         };
  81 })();
  82
  83
  84 dojo.colors.makeGrey = function(/*Number*/ g, /*Number?*/ a){
  85         // summary: creates a greyscale color with an optional alpha
  86         return dojo.colorFromArray([g, g, g, a]);
  87 };
  88
  89 // mixin all CSS3 named colors not already in _base, along with SVG 1.0 variant spellings
  90 dojo.Color.named = dojo.mixin({
  91         aliceblue:      [240,248,255],
  92         antiquewhite:   [250,235,215],
  93         aquamarine:     [127,255,212],
  94         azure:  [240,255,255],
  95         beige:  [245,245,220],
  96         bisque: [255,228,196],
  97         blanchedalmond: [255,235,205],
  98         blueviolet:     [138,43,226],
  99         brown:  [165,42,42],
 100         burlywood:      [222,184,135],
 101         cadetblue:      [95,158,160],
 102         chartreuse:     [127,255,0],
 103         chocolate:      [210,105,30],
 104         coral:  [255,127,80],
 105         cornflowerblue: [100,149,237],
 106         cornsilk:       [255,248,220],
 107         crimson:        [220,20,60],
 108         cyan:   [0,255,255],
 109         darkblue:       [0,0,139],
 110         darkcyan:       [0,139,139],
 111         darkgoldenrod:  [184,134,11],
 112         darkgray:       [169,169,169],
 113         darkgreen:      [0,100,0],
 114         darkgrey:       [169,169,169],
 115         darkkhaki:      [189,183,107],
 116         darkmagenta:    [139,0,139],
 117         darkolivegreen: [85,107,47],
 118         darkorange:     [255,140,0],
 119         darkorchid:     [153,50,204],
 120         darkred:        [139,0,0],
 121         darksalmon:     [233,150,122],
 122         darkseagreen:   [143,188,143],
 123         darkslateblue:  [72,61,139],
 124         darkslategray:  [47,79,79],
 125         darkslategrey:  [47,79,79],
 126         darkturquoise:  [0,206,209],
 127         darkviolet:     [148,0,211],
 128         deeppink:       [255,20,147],
 129         deepskyblue:    [0,191,255],
 130         dimgray:        [105,105,105],
 131         dimgrey:        [105,105,105],
 132         dodgerblue:     [30,144,255],
 133         firebrick:      [178,34,34],
 134         floralwhite:    [255,250,240],
 135         forestgreen:    [34,139,34],
 136         gainsboro:      [220,220,220],
 137         ghostwhite:     [248,248,255],
 138         gold:   [255,215,0],
 139         goldenrod:      [218,165,32],
 140         greenyellow:    [173,255,47],
 141         grey:   [128,128,128],
 142         honeydew:       [240,255,240],
 143         hotpink:        [255,105,180],
 144         indianred:      [205,92,92],
 145         indigo: [75,0,130],
 146         ivory:  [255,255,240],
 147         khaki:  [240,230,140],
 148         lavender:       [230,230,250],
 149         lavenderblush:  [255,240,245],
 150         lawngreen:      [124,252,0],
 151         lemonchiffon:   [255,250,205],
 152         lightblue:      [173,216,230],
 153         lightcoral:     [240,128,128],
 154         lightcyan:      [224,255,255],
 155         lightgoldenrodyellow:   [250,250,210],
 156         lightgray:      [211,211,211],
 157         lightgreen:     [144,238,144],
 158         lightgrey:      [211,211,211],
 159         lightpink:      [255,182,193],
 160         lightsalmon:    [255,160,122],
 161         lightseagreen:  [32,178,170],
 162         lightskyblue:   [135,206,250],
 163         lightslategray: [119,136,153],
 164         lightslategrey: [119,136,153],
 165         lightsteelblue: [176,196,222],
 166         lightyellow:    [255,255,224],
 167         limegreen:      [50,205,50],
 168         linen:  [250,240,230],
 169         magenta:        [255,0,255],
 170         mediumaquamarine:       [102,205,170],
 171         mediumblue:     [0,0,205],
 172         mediumorchid:   [186,85,211],
 173         mediumpurple:   [147,112,219],
 174         mediumseagreen: [60,179,113],
 175         mediumslateblue:        [123,104,238],
 176         mediumspringgreen:      [0,250,154],
 177         mediumturquoise:        [72,209,204],
 178         mediumvioletred:        [199,21,133],
 179         midnightblue:   [25,25,112],
 180         mintcream:      [245,255,250],
 181         mistyrose:      [255,228,225],
 182         moccasin:       [255,228,181],
 183         navajowhite:    [255,222,173],
 184         oldlace:        [253,245,230],
 185         olivedrab:      [107,142,35],
 186         orange: [255,165,0],
 187         orangered:      [255,69,0],
 188         orchid: [218,112,214],
 189         palegoldenrod:  [238,232,170],
 190         palegreen:      [152,251,152],
 191         paleturquoise:  [175,238,238],
 192         palevioletred:  [219,112,147],
 193         papayawhip:     [255,239,213],
 194         peachpuff:      [255,218,185],
 195         peru:   [205,133,63],
 196         pink:   [255,192,203],
 197         plum:   [221,160,221],
 198         powderblue:     [176,224,230],
 199         rosybrown:      [188,143,143],
 200         royalblue:      [65,105,225],
 201         saddlebrown:    [139,69,19],
 202         salmon: [250,128,114],
 203         sandybrown:     [244,164,96],
 204         seagreen:       [46,139,87],
 205         seashell:       [255,245,238],
 206         sienna: [160,82,45],
 207         skyblue:        [135,206,235],
 208         slateblue:      [106,90,205],
 209         slategray:      [112,128,144],
 210         slategrey:      [112,128,144],
 211         snow:   [255,250,250],
 212         springgreen:    [0,255,127],
 213         steelblue:      [70,130,180],
 214         tan:    [210,180,140],
 215         thistle:        [216,191,216],
 216         tomato: [255,99,71],
 217         transparent: [0, 0, 0, 0],
 218         turquoise:      [64,224,208],
 219         violet: [238,130,238],
 220         wheat:  [245,222,179],
 221         whitesmoke:     [245,245,245],
 222         yellowgreen:    [154,205,50]
 223 }, dojo.Color.named);
 224
 225 }