lib/dojo/colors.js.uncompressed.js

   1 define("dojo/colors", ["./_base/kernel", "./_base/lang", "./_base/Color", "./_base/array"], function(dojo, lang, Color, ArrayUtil) {
   2         // module:
   3         //              dojo/colors
   4         // summary:
   5         //              TODOC
   6
   7         var ColorExt = lang.getObject("dojo.colors", true);
   8
   9 //TODO: this module appears to break naming conventions
  10
  11 /*=====
  12         lang.mixin(dojo, {
  13                 colors: {
  14                         // summary: Color utilities, extending Base dojo.Color
  15                 }
  16         });
  17 =====*/
  18
  19         // this is a standard conversion prescribed by the CSS3 Color Module
  20         var hue2rgb = function(m1, m2, h){
  21                 if(h < 0){ ++h; }
  22                 if(h > 1){ --h; }
  23                 var h6 = 6 * h;
  24                 if(h6 < 1){ return m1 + (m2 - m1) * h6; }
  25                 if(2 * h < 1){ return m2; }
  26                 if(3 * h < 2){ return m1 + (m2 - m1) * (2 / 3 - h) * 6; }
  27                 return m1;
  28         };
  29         // Override base Color.fromRgb with the impl in this module
  30         dojo.colorFromRgb = Color.fromRgb = function(/*String*/ color, /*dojo.Color?*/ obj){
  31                 // summary:
  32                 //              get rgb(a) array from css-style color declarations
  33                 // description:
  34                 //              this function can handle all 4 CSS3 Color Module formats: rgb,
  35                 //              rgba, hsl, hsla, including rgb(a) with percentage values.
  36                 var m = color.toLowerCase().match(/^(rgba?|hsla?)\(([\s\.\-,%0-9]+)\)/);
  37                 if(m){
  38                         var c = m[2].split(/\s*,\s*/), l = c.length, t = m[1], a;
  39                         if((t == "rgb" && l == 3) || (t == "rgba" && l == 4)){
  40                                 var r = c[0];
  41                                 if(r.charAt(r.length - 1) == "%"){
  42                                         // 3 rgb percentage values
  43                                         a = ArrayUtil.map(c, function(x){
  44                                                 return parseFloat(x) * 2.56;
  45                                         });
  46                                         if(l == 4){ a[3] = c[3]; }
  47                                         return Color.fromArray(a, obj); // dojo.Color
  48                                 }
  49                                 return Color.fromArray(c, obj); // dojo.Color
  50                         }
  51                         if((t == "hsl" && l == 3) || (t == "hsla" && l == 4)){
  52                                 // normalize hsl values
  53                                 var H = ((parseFloat(c[0]) % 360) + 360) % 360 / 360,
  54                                         S = parseFloat(c[1]) / 100,
  55                                         L = parseFloat(c[2]) / 100,
  56                                         // calculate rgb according to the algorithm
  57                                         // recommended by the CSS3 Color Module
  58                                         m2 = L <= 0.5 ? L * (S + 1) : L + S - L * S,
  59                                         m1 = 2 * L - m2;
  60                                 a = [
  61                                         hue2rgb(m1, m2, H + 1 / 3) * 256,
  62                                         hue2rgb(m1, m2, H) * 256,
  63                                         hue2rgb(m1, m2, H - 1 / 3) * 256,
  64                                         1
  65                                 ];
  66                                 if(l == 4){ a[3] = c[3]; }
  67                                 return Color.fromArray(a, obj); // dojo.Color
  68                         }
  69                 }
  70                 return null;    // dojo.Color
  71         };
  72
  73         var confine = function(c, low, high){
  74                 // summary:
  75                 //              sanitize a color component by making sure it is a number,
  76                 //              and clamping it to valid values
  77                 c = Number(c);
  78                 return isNaN(c) ? high : c < low ? low : c > high ? high : c;   // Number
  79         };
  80
  81         Color.prototype.sanitize = function(){
  82                 // summary: makes sure that the object has correct attributes
  83                 var t = this;
  84                 t.r = Math.round(confine(t.r, 0, 255));
  85                 t.g = Math.round(confine(t.g, 0, 255));
  86                 t.b = Math.round(confine(t.b, 0, 255));
  87                 t.a = confine(t.a, 0, 1);
  88                 return this;    // dojo.Color
  89         };
  90
  91         ColorExt.makeGrey = Color.makeGrey = function(/*Number*/ g, /*Number?*/ a){
  92                 // summary: creates a greyscale color with an optional alpha
  93                 return Color.fromArray([g, g, g, a]);   // dojo.Color
  94         };
  95
  96         // mixin all CSS3 named colors not already in _base, along with SVG 1.0 variant spellings
  97         lang.mixin(Color.named, {
  98                 "aliceblue":    [240,248,255],
  99                 "antiquewhite": [250,235,215],
 100                 "aquamarine":   [127,255,212],
 101                 "azure":        [240,255,255],
 102                 "beige":        [245,245,220],
 103                 "bisque":       [255,228,196],
 104                 "blanchedalmond":       [255,235,205],
 105                 "blueviolet":   [138,43,226],
 106                 "brown":        [165,42,42],
 107                 "burlywood":    [222,184,135],
 108                 "cadetblue":    [95,158,160],
 109                 "chartreuse":   [127,255,0],
 110                 "chocolate":    [210,105,30],
 111                 "coral":        [255,127,80],
 112                 "cornflowerblue":       [100,149,237],
 113                 "cornsilk": [255,248,220],
 114                 "crimson":      [220,20,60],
 115                 "cyan": [0,255,255],
 116                 "darkblue": [0,0,139],
 117                 "darkcyan": [0,139,139],
 118                 "darkgoldenrod":        [184,134,11],
 119                 "darkgray": [169,169,169],
 120                 "darkgreen":    [0,100,0],
 121                 "darkgrey": [169,169,169],
 122                 "darkkhaki":    [189,183,107],
 123                 "darkmagenta":  [139,0,139],
 124                 "darkolivegreen":       [85,107,47],
 125                 "darkorange":   [255,140,0],
 126                 "darkorchid":   [153,50,204],
 127                 "darkred":      [139,0,0],
 128                 "darksalmon":   [233,150,122],
 129                 "darkseagreen": [143,188,143],
 130                 "darkslateblue":        [72,61,139],
 131                 "darkslategray":        [47,79,79],
 132                 "darkslategrey":        [47,79,79],
 133                 "darkturquoise":        [0,206,209],
 134                 "darkviolet":   [148,0,211],
 135                 "deeppink": [255,20,147],
 136                 "deepskyblue":  [0,191,255],
 137                 "dimgray":      [105,105,105],
 138                 "dimgrey":      [105,105,105],
 139                 "dodgerblue":   [30,144,255],
 140                 "firebrick":    [178,34,34],
 141                 "floralwhite":  [255,250,240],
 142                 "forestgreen":  [34,139,34],
 143                 "gainsboro":    [220,220,220],
 144                 "ghostwhite":   [248,248,255],
 145                 "gold": [255,215,0],
 146                 "goldenrod":    [218,165,32],
 147                 "greenyellow":  [173,255,47],
 148                 "grey": [128,128,128],
 149                 "honeydew": [240,255,240],
 150                 "hotpink":      [255,105,180],
 151                 "indianred":    [205,92,92],
 152                 "indigo":       [75,0,130],
 153                 "ivory":        [255,255,240],
 154                 "khaki":        [240,230,140],
 155                 "lavender": [230,230,250],
 156                 "lavenderblush":        [255,240,245],
 157                 "lawngreen":    [124,252,0],
 158                 "lemonchiffon": [255,250,205],
 159                 "lightblue":    [173,216,230],
 160                 "lightcoral":   [240,128,128],
 161                 "lightcyan":    [224,255,255],
 162                 "lightgoldenrodyellow": [250,250,210],
 163                 "lightgray":    [211,211,211],
 164                 "lightgreen":   [144,238,144],
 165                 "lightgrey":    [211,211,211],
 166                 "lightpink":    [255,182,193],
 167                 "lightsalmon":  [255,160,122],
 168                 "lightseagreen":        [32,178,170],
 169                 "lightskyblue": [135,206,250],
 170                 "lightslategray":       [119,136,153],
 171                 "lightslategrey":       [119,136,153],
 172                 "lightsteelblue":       [176,196,222],
 173                 "lightyellow":  [255,255,224],
 174                 "limegreen":    [50,205,50],
 175                 "linen":        [250,240,230],
 176                 "magenta":      [255,0,255],
 177                 "mediumaquamarine": [102,205,170],
 178                 "mediumblue":   [0,0,205],
 179                 "mediumorchid": [186,85,211],
 180                 "mediumpurple": [147,112,219],
 181                 "mediumseagreen":       [60,179,113],
 182                 "mediumslateblue":      [123,104,238],
 183                 "mediumspringgreen":    [0,250,154],
 184                 "mediumturquoise":      [72,209,204],
 185                 "mediumvioletred":      [199,21,133],
 186                 "midnightblue": [25,25,112],
 187                 "mintcream":    [245,255,250],
 188                 "mistyrose":    [255,228,225],
 189                 "moccasin": [255,228,181],
 190                 "navajowhite":  [255,222,173],
 191                 "oldlace":      [253,245,230],
 192                 "olivedrab":    [107,142,35],
 193                 "orange":       [255,165,0],
 194                 "orangered":    [255,69,0],
 195                 "orchid":       [218,112,214],
 196                 "palegoldenrod":        [238,232,170],
 197                 "palegreen":    [152,251,152],
 198                 "paleturquoise":        [175,238,238],
 199                 "palevioletred":        [219,112,147],
 200                 "papayawhip":   [255,239,213],
 201                 "peachpuff":    [255,218,185],
 202                 "peru": [205,133,63],
 203                 "pink": [255,192,203],
 204                 "plum": [221,160,221],
 205                 "powderblue":   [176,224,230],
 206                 "rosybrown":    [188,143,143],
 207                 "royalblue":    [65,105,225],
 208                 "saddlebrown":  [139,69,19],
 209                 "salmon":       [250,128,114],
 210                 "sandybrown":   [244,164,96],
 211                 "seagreen": [46,139,87],
 212                 "seashell": [255,245,238],
 213                 "sienna":       [160,82,45],
 214                 "skyblue":      [135,206,235],
 215                 "slateblue":    [106,90,205],
 216                 "slategray":    [112,128,144],
 217                 "slategrey":    [112,128,144],
 218                 "snow": [255,250,250],
 219                 "springgreen":  [0,255,127],
 220                 "steelblue":    [70,130,180],
 221                 "tan":  [210,180,140],
 222                 "thistle":      [216,191,216],
 223                 "tomato":       [255,99,71],
 224                 "turquoise":    [64,224,208],
 225                 "violet":       [238,130,238],
 226                 "wheat":        [245,222,179],
 227                 "whitesmoke":   [245,245,245],
 228                 "yellowgreen":  [154,205,50]
 229         });
 230
 231         return Color;
 232 });