| 1 | /**\r |
| 2 | * A class to parse color values\r |
| 3 | *\r |
| 4 | * NOTE: modified by danvk. I removed the "getHelpXML" function to reduce the\r |
| 5 | * file size.\r |
| 6 | *\r |
| 7 | * @author Stoyan Stefanov <sstoo@gmail.com>\r |
| 8 | * @link http://www.phpied.com/rgb-color-parser-in-javascript/\r |
| 9 | * @license Use it if you like it\r |
| 10 | */\r |
| 11 | function RGBColor(color_string)\r |
| 12 | {\r |
| 13 | this.ok = false;\r |
| 14 | \r |
| 15 | // strip any leading #\r |
| 16 | if (color_string.charAt(0) == '#') { // remove # if any\r |
| 17 | color_string = color_string.substr(1,6);\r |
| 18 | }\r |
| 19 | \r |
| 20 | color_string = color_string.replace(/ /g,'');\r |
| 21 | color_string = color_string.toLowerCase();\r |
| 22 | \r |
| 23 | // before getting into regexps, try simple matches\r |
| 24 | // and overwrite the input\r |
| 25 | var simple_colors = {\r |
| 26 | aliceblue: 'f0f8ff',\r |
| 27 | antiquewhite: 'faebd7',\r |
| 28 | aqua: '00ffff',\r |
| 29 | aquamarine: '7fffd4',\r |
| 30 | azure: 'f0ffff',\r |
| 31 | beige: 'f5f5dc',\r |
| 32 | bisque: 'ffe4c4',\r |
| 33 | black: '000000',\r |
| 34 | blanchedalmond: 'ffebcd',\r |
| 35 | blue: '0000ff',\r |
| 36 | blueviolet: '8a2be2',\r |
| 37 | brown: 'a52a2a',\r |
| 38 | burlywood: 'deb887',\r |
| 39 | cadetblue: '5f9ea0',\r |
| 40 | chartreuse: '7fff00',\r |
| 41 | chocolate: 'd2691e',\r |
| 42 | coral: 'ff7f50',\r |
| 43 | cornflowerblue: '6495ed',\r |
| 44 | cornsilk: 'fff8dc',\r |
| 45 | crimson: 'dc143c',\r |
| 46 | cyan: '00ffff',\r |
| 47 | darkblue: '00008b',\r |
| 48 | darkcyan: '008b8b',\r |
| 49 | darkgoldenrod: 'b8860b',\r |
| 50 | darkgray: 'a9a9a9',\r |
| 51 | darkgreen: '006400',\r |
| 52 | darkkhaki: 'bdb76b',\r |
| 53 | darkmagenta: '8b008b',\r |
| 54 | darkolivegreen: '556b2f',\r |
| 55 | darkorange: 'ff8c00',\r |
| 56 | darkorchid: '9932cc',\r |
| 57 | darkred: '8b0000',\r |
| 58 | darksalmon: 'e9967a',\r |
| 59 | darkseagreen: '8fbc8f',\r |
| 60 | darkslateblue: '483d8b',\r |
| 61 | darkslategray: '2f4f4f',\r |
| 62 | darkturquoise: '00ced1',\r |
| 63 | darkviolet: '9400d3',\r |
| 64 | deeppink: 'ff1493',\r |
| 65 | deepskyblue: '00bfff',\r |
| 66 | dimgray: '696969',\r |
| 67 | dodgerblue: '1e90ff',\r |
| 68 | feldspar: 'd19275',\r |
| 69 | firebrick: 'b22222',\r |
| 70 | floralwhite: 'fffaf0',\r |
| 71 | forestgreen: '228b22',\r |
| 72 | fuchsia: 'ff00ff',\r |
| 73 | gainsboro: 'dcdcdc',\r |
| 74 | ghostwhite: 'f8f8ff',\r |
| 75 | gold: 'ffd700',\r |
| 76 | goldenrod: 'daa520',\r |
| 77 | gray: '808080',\r |
| 78 | green: '008000',\r |
| 79 | greenyellow: 'adff2f',\r |
| 80 | honeydew: 'f0fff0',\r |
| 81 | hotpink: 'ff69b4',\r |
| 82 | indianred : 'cd5c5c',\r |
| 83 | indigo : '4b0082',\r |
| 84 | ivory: 'fffff0',\r |
| 85 | khaki: 'f0e68c',\r |
| 86 | lavender: 'e6e6fa',\r |
| 87 | lavenderblush: 'fff0f5',\r |
| 88 | lawngreen: '7cfc00',\r |
| 89 | lemonchiffon: 'fffacd',\r |
| 90 | lightblue: 'add8e6',\r |
| 91 | lightcoral: 'f08080',\r |
| 92 | lightcyan: 'e0ffff',\r |
| 93 | lightgoldenrodyellow: 'fafad2',\r |
| 94 | lightgrey: 'd3d3d3',\r |
| 95 | lightgreen: '90ee90',\r |
| 96 | lightpink: 'ffb6c1',\r |
| 97 | lightsalmon: 'ffa07a',\r |
| 98 | lightseagreen: '20b2aa',\r |
| 99 | lightskyblue: '87cefa',\r |
| 100 | lightslateblue: '8470ff',\r |
| 101 | lightslategray: '778899',\r |
| 102 | lightsteelblue: 'b0c4de',\r |
| 103 | lightyellow: 'ffffe0',\r |
| 104 | lime: '00ff00',\r |
| 105 | limegreen: '32cd32',\r |
| 106 | linen: 'faf0e6',\r |
| 107 | magenta: 'ff00ff',\r |
| 108 | maroon: '800000',\r |
| 109 | mediumaquamarine: '66cdaa',\r |
| 110 | mediumblue: '0000cd',\r |
| 111 | mediumorchid: 'ba55d3',\r |
| 112 | mediumpurple: '9370d8',\r |
| 113 | mediumseagreen: '3cb371',\r |
| 114 | mediumslateblue: '7b68ee',\r |
| 115 | mediumspringgreen: '00fa9a',\r |
| 116 | mediumturquoise: '48d1cc',\r |
| 117 | mediumvioletred: 'c71585',\r |
| 118 | midnightblue: '191970',\r |
| 119 | mintcream: 'f5fffa',\r |
| 120 | mistyrose: 'ffe4e1',\r |
| 121 | moccasin: 'ffe4b5',\r |
| 122 | navajowhite: 'ffdead',\r |
| 123 | navy: '000080',\r |
| 124 | oldlace: 'fdf5e6',\r |
| 125 | olive: '808000',\r |
| 126 | olivedrab: '6b8e23',\r |
| 127 | orange: 'ffa500',\r |
| 128 | orangered: 'ff4500',\r |
| 129 | orchid: 'da70d6',\r |
| 130 | palegoldenrod: 'eee8aa',\r |
| 131 | palegreen: '98fb98',\r |
| 132 | paleturquoise: 'afeeee',\r |
| 133 | palevioletred: 'd87093',\r |
| 134 | papayawhip: 'ffefd5',\r |
| 135 | peachpuff: 'ffdab9',\r |
| 136 | peru: 'cd853f',\r |
| 137 | pink: 'ffc0cb',\r |
| 138 | plum: 'dda0dd',\r |
| 139 | powderblue: 'b0e0e6',\r |
| 140 | purple: '800080',\r |
| 141 | red: 'ff0000',\r |
| 142 | rosybrown: 'bc8f8f',\r |
| 143 | royalblue: '4169e1',\r |
| 144 | saddlebrown: '8b4513',\r |
| 145 | salmon: 'fa8072',\r |
| 146 | sandybrown: 'f4a460',\r |
| 147 | seagreen: '2e8b57',\r |
| 148 | seashell: 'fff5ee',\r |
| 149 | sienna: 'a0522d',\r |
| 150 | silver: 'c0c0c0',\r |
| 151 | skyblue: '87ceeb',\r |
| 152 | slateblue: '6a5acd',\r |
| 153 | slategray: '708090',\r |
| 154 | snow: 'fffafa',\r |
| 155 | springgreen: '00ff7f',\r |
| 156 | steelblue: '4682b4',\r |
| 157 | tan: 'd2b48c',\r |
| 158 | teal: '008080',\r |
| 159 | thistle: 'd8bfd8',\r |
| 160 | tomato: 'ff6347',\r |
| 161 | turquoise: '40e0d0',\r |
| 162 | violet: 'ee82ee',\r |
| 163 | violetred: 'd02090',\r |
| 164 | wheat: 'f5deb3',\r |
| 165 | white: 'ffffff',\r |
| 166 | whitesmoke: 'f5f5f5',\r |
| 167 | yellow: 'ffff00',\r |
| 168 | yellowgreen: '9acd32'\r |
| 169 | };\r |
| 170 | for (var key in simple_colors) {\r |
| 171 | if (color_string == key) {\r |
| 172 | color_string = simple_colors[key];\r |
| 173 | }\r |
| 174 | }\r |
| 175 | // emd of simple type-in colors\r |
| 176 | \r |
| 177 | // array of color definition objects\r |
| 178 | var color_defs = [\r |
| 179 | {\r |
| 180 | re: /^rgb\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\)$/,\r |
| 181 | example: ['rgb(123, 234, 45)', 'rgb(255,234,245)'],\r |
| 182 | process: function (bits){\r |
| 183 | return [\r |
| 184 | parseInt(bits[1]),\r |
| 185 | parseInt(bits[2]),\r |
| 186 | parseInt(bits[3])\r |
| 187 | ];\r |
| 188 | }\r |
| 189 | },\r |
| 190 | {\r |
| 191 | re: /^(\w{2})(\w{2})(\w{2})$/,\r |
| 192 | example: ['#00ff00', '336699'],\r |
| 193 | process: function (bits){\r |
| 194 | return [\r |
| 195 | parseInt(bits[1], 16),\r |
| 196 | parseInt(bits[2], 16),\r |
| 197 | parseInt(bits[3], 16)\r |
| 198 | ];\r |
| 199 | }\r |
| 200 | },\r |
| 201 | {\r |
| 202 | re: /^(\w{1})(\w{1})(\w{1})$/,\r |
| 203 | example: ['#fb0', 'f0f'],\r |
| 204 | process: function (bits){\r |
| 205 | return [\r |
| 206 | parseInt(bits[1] + bits[1], 16),\r |
| 207 | parseInt(bits[2] + bits[2], 16),\r |
| 208 | parseInt(bits[3] + bits[3], 16)\r |
| 209 | ];\r |
| 210 | }\r |
| 211 | }\r |
| 212 | ];\r |
| 213 | \r |
| 214 | // search through the definitions to find a match\r |
| 215 | for (var i = 0; i < color_defs.length; i++) {\r |
| 216 | var re = color_defs[i].re;\r |
| 217 | var processor = color_defs[i].process;\r |
| 218 | var bits = re.exec(color_string);\r |
| 219 | if (bits) {\r |
| 220 | channels = processor(bits);\r |
| 221 | this.r = channels[0];\r |
| 222 | this.g = channels[1];\r |
| 223 | this.b = channels[2];\r |
| 224 | this.ok = true;\r |
| 225 | }\r |
| 226 | \r |
| 227 | }\r |
| 228 | \r |
| 229 | // validate/cleanup values\r |
| 230 | this.r = (this.r < 0 || isNaN(this.r)) ? 0 : ((this.r > 255) ? 255 : this.r);\r |
| 231 | this.g = (this.g < 0 || isNaN(this.g)) ? 0 : ((this.g > 255) ? 255 : this.g);\r |
| 232 | this.b = (this.b < 0 || isNaN(this.b)) ? 0 : ((this.b > 255) ? 255 : this.b);\r |
| 233 | \r |
| 234 | // some getters\r |
| 235 | this.toRGB = function () {\r |
| 236 | return 'rgb(' + this.r + ', ' + this.g + ', ' + this.b + ')';\r |
| 237 | }\r |
| 238 | this.toHex = function () {\r |
| 239 | var r = this.r.toString(16);\r |
| 240 | var g = this.g.toString(16);\r |
| 241 | var b = this.b.toString(16);\r |
| 242 | if (r.length == 1) r = '0' + r;\r |
| 243 | if (g.length == 1) g = '0' + g;\r |
| 244 | if (b.length == 1) b = '0' + b;\r |
| 245 | return '#' + r + g + b;\r |
| 246 | }\r |
| 247 | \r |
| 248 | \r |
| 249 | }\r |
| 250 | \r |