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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | espaco | 1 | /** |
| 2 | * A class to parse color values |
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| 3 | * @author Stoyan Stefanov <sstoo@gmail.com> |
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| 4 | * @link http://www.phpied.com/rgb-color-parser-in-javascript/ |
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| 5 | * @license Use it if you like it |
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| 6 | */ |
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| 7 | function RGBColor(color_string) |
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| 8 | { |
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| 9 | this.ok = false; |
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| 10 | |||
| 11 | // strip any leading # |
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| 12 | if (color_string.charAt(0) == '#') { // remove # if any |
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| 13 | color_string = color_string.substr(1,6); |
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| 14 | } |
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| 15 | |||
| 16 | color_string = color_string.replace(/ /g,''); |
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| 17 | color_string = color_string.toLowerCase(); |
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| 18 | |||
| 19 | // before getting into regexps, try simple matches |
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| 20 | // and overwrite the input |
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| 21 | var simple_colors = { |
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| 22 | aliceblue: 'f0f8ff', |
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| 23 | antiquewhite: 'faebd7', |
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| 24 | aqua: '00ffff', |
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| 25 | aquamarine: '7fffd4', |
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| 26 | azure: 'f0ffff', |
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| 27 | beige: 'f5f5dc', |
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| 28 | bisque: 'ffe4c4', |
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| 29 | black: '000000', |
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| 30 | blanchedalmond: 'ffebcd', |
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| 31 | blue: '0000ff', |
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| 32 | blueviolet: '8a2be2', |
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| 33 | brown: 'a52a2a', |
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| 34 | burlywood: 'deb887', |
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| 35 | cadetblue: '5f9ea0', |
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| 36 | chartreuse: '7fff00', |
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| 37 | chocolate: 'd2691e', |
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| 38 | coral: 'ff7f50', |
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| 39 | cornflowerblue: '6495ed', |
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| 40 | cornsilk: 'fff8dc', |
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| 41 | crimson: 'dc143c', |
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| 42 | cyan: '00ffff', |
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| 43 | darkblue: '00008b', |
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| 44 | darkcyan: '008b8b', |
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| 45 | darkgoldenrod: 'b8860b', |
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| 46 | darkgray: 'a9a9a9', |
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| 47 | darkgreen: '006400', |
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| 48 | darkkhaki: 'bdb76b', |
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| 49 | darkmagenta: '8b008b', |
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| 50 | darkolivegreen: '556b2f', |
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| 51 | darkorange: 'ff8c00', |
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| 52 | darkorchid: '9932cc', |
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| 53 | darkred: '8b0000', |
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| 54 | darksalmon: 'e9967a', |
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| 55 | darkseagreen: '8fbc8f', |
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| 56 | darkslateblue: '483d8b', |
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| 57 | darkslategray: '2f4f4f', |
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| 58 | darkturquoise: '00ced1', |
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| 59 | darkviolet: '9400d3', |
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| 60 | deeppink: 'ff1493', |
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| 61 | deepskyblue: '00bfff', |
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| 62 | dimgray: '696969', |
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| 63 | dodgerblue: '1e90ff', |
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| 64 | feldspar: 'd19275', |
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| 65 | firebrick: 'b22222', |
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| 66 | floralwhite: 'fffaf0', |
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| 67 | forestgreen: '228b22', |
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| 68 | fuchsia: 'ff00ff', |
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| 69 | gainsboro: 'dcdcdc', |
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| 70 | ghostwhite: 'f8f8ff', |
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| 71 | gold: 'ffd700', |
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| 72 | goldenrod: 'daa520', |
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| 73 | gray: '808080', |
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| 74 | green: '008000', |
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| 75 | greenyellow: 'adff2f', |
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| 76 | honeydew: 'f0fff0', |
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| 77 | hotpink: 'ff69b4', |
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| 78 | indianred : 'cd5c5c', |
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| 79 | indigo : '4b0082', |
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| 80 | ivory: 'fffff0', |
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| 81 | khaki: 'f0e68c', |
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| 82 | lavender: 'e6e6fa', |
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| 83 | lavenderblush: 'fff0f5', |
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| 84 | lawngreen: '7cfc00', |
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| 85 | lemonchiffon: 'fffacd', |
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| 86 | lightblue: 'add8e6', |
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| 87 | lightcoral: 'f08080', |
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| 88 | lightcyan: 'e0ffff', |
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| 89 | lightgoldenrodyellow: 'fafad2', |
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| 90 | lightgrey: 'd3d3d3', |
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| 91 | lightgreen: '90ee90', |
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| 92 | lightpink: 'ffb6c1', |
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| 93 | lightsalmon: 'ffa07a', |
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| 94 | lightseagreen: '20b2aa', |
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| 95 | lightskyblue: '87cefa', |
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| 96 | lightslateblue: '8470ff', |
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| 97 | lightslategray: '778899', |
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| 98 | lightsteelblue: 'b0c4de', |
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| 99 | lightyellow: 'ffffe0', |
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| 100 | lime: '00ff00', |
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| 101 | limegreen: '32cd32', |
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| 102 | linen: 'faf0e6', |
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| 103 | magenta: 'ff00ff', |
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| 104 | maroon: '800000', |
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| 105 | mediumaquamarine: '66cdaa', |
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| 106 | mediumblue: '0000cd', |
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| 107 | mediumorchid: 'ba55d3', |
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| 108 | mediumpurple: '9370d8', |
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| 109 | mediumseagreen: '3cb371', |
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| 110 | mediumslateblue: '7b68ee', |
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| 111 | mediumspringgreen: '00fa9a', |
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| 112 | mediumturquoise: '48d1cc', |
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| 113 | mediumvioletred: 'c71585', |
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| 114 | midnightblue: '191970', |
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| 115 | mintcream: 'f5fffa', |
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| 116 | mistyrose: 'ffe4e1', |
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| 117 | moccasin: 'ffe4b5', |
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| 118 | navajowhite: 'ffdead', |
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| 119 | navy: '000080', |
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| 120 | oldlace: 'fdf5e6', |
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| 121 | olive: '808000', |
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| 122 | olivedrab: '6b8e23', |
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| 123 | orange: 'ffa500', |
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| 124 | orangered: 'ff4500', |
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| 125 | orchid: 'da70d6', |
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| 126 | palegoldenrod: 'eee8aa', |
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| 127 | palegreen: '98fb98', |
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| 128 | paleturquoise: 'afeeee', |
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| 129 | palevioletred: 'd87093', |
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| 130 | papayawhip: 'ffefd5', |
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| 131 | peachpuff: 'ffdab9', |
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| 132 | peru: 'cd853f', |
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| 133 | pink: 'ffc0cb', |
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| 134 | plum: 'dda0dd', |
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| 135 | powderblue: 'b0e0e6', |
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| 136 | purple: '800080', |
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| 137 | red: 'ff0000', |
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| 138 | rosybrown: 'bc8f8f', |
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| 139 | royalblue: '4169e1', |
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| 140 | saddlebrown: '8b4513', |
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| 141 | salmon: 'fa8072', |
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| 142 | sandybrown: 'f4a460', |
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| 143 | seagreen: '2e8b57', |
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| 144 | seashell: 'fff5ee', |
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| 145 | sienna: 'a0522d', |
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| 146 | silver: 'c0c0c0', |
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| 147 | skyblue: '87ceeb', |
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| 148 | slateblue: '6a5acd', |
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| 149 | slategray: '708090', |
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| 150 | snow: 'fffafa', |
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| 151 | springgreen: '00ff7f', |
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| 152 | steelblue: '4682b4', |
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| 153 | tan: 'd2b48c', |
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| 154 | teal: '008080', |
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| 155 | thistle: 'd8bfd8', |
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| 156 | tomato: 'ff6347', |
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| 157 | turquoise: '40e0d0', |
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| 158 | violet: 'ee82ee', |
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| 159 | violetred: 'd02090', |
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| 160 | wheat: 'f5deb3', |
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| 161 | white: 'ffffff', |
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| 162 | whitesmoke: 'f5f5f5', |
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| 163 | yellow: 'ffff00', |
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| 164 | yellowgreen: '9acd32' |
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| 165 | }; |
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| 166 | for (var key in simple_colors) { |
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| 167 | if (color_string == key) { |
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| 168 | color_string = simple_colors[key]; |
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| 169 | } |
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| 170 | } |
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| 171 | // emd of simple type-in colors |
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| 172 | |||
| 173 | // array of color definition objects |
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| 174 | var color_defs = [ |
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| 175 | { |
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| 176 | re: /^rgb\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\)$/, |
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| 177 | example: ['rgb(123, 234, 45)', 'rgb(255,234,245)'], |
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| 178 | process: function (bits){ |
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| 179 | return [ |
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| 180 | parseInt(bits[1]), |
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| 181 | parseInt(bits[2]), |
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| 182 | parseInt(bits[3]) |
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| 183 | ]; |
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| 184 | } |
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| 185 | }, |
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| 186 | { |
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| 187 | re: /^(\w{2})(\w{2})(\w{2})$/, |
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| 188 | example: ['#00ff00', '336699'], |
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| 189 | process: function (bits){ |
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| 190 | return [ |
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| 191 | parseInt(bits[1], 16), |
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| 192 | parseInt(bits[2], 16), |
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| 193 | parseInt(bits[3], 16) |
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| 194 | ]; |
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| 195 | } |
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| 196 | }, |
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| 197 | { |
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| 198 | re: /^(\w{1})(\w{1})(\w{1})$/, |
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| 199 | example: ['#fb0', 'f0f'], |
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| 200 | process: function (bits){ |
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| 201 | return [ |
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| 202 | parseInt(bits[1] + bits[1], 16), |
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| 203 | parseInt(bits[2] + bits[2], 16), |
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| 204 | parseInt(bits[3] + bits[3], 16) |
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| 205 | ]; |
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| 206 | } |
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| 207 | } |
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| 208 | ]; |
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| 209 | |||
| 210 | // search through the definitions to find a match |
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| 211 | for (var i = 0; i < color_defs.length; i++) { |
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| 212 | var re = color_defs[i].re; |
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| 213 | var processor = color_defs[i].process; |
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| 214 | var bits = re.exec(color_string); |
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| 215 | if (bits) { |
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| 216 | channels = processor(bits); |
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| 217 | this.r = channels[0]; |
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| 218 | this.g = channels[1]; |
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| 219 | this.b = channels[2]; |
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| 220 | this.ok = true; |
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| 221 | } |
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| 222 | |||
| 223 | } |
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| 224 | |||
| 225 | // validate/cleanup values |
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| 226 | this.r = (this.r < 0 || isNaN(this.r)) ? 0 : ((this.r > 255) ? 255 : this.r); |
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| 227 | this.g = (this.g < 0 || isNaN(this.g)) ? 0 : ((this.g > 255) ? 255 : this.g); |
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| 228 | this.b = (this.b < 0 || isNaN(this.b)) ? 0 : ((this.b > 255) ? 255 : this.b); |
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| 229 | |||
| 230 | // some getters |
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| 231 | this.toRGB = function () { |
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| 232 | return 'rgb(' + this.r + ', ' + this.g + ', ' + this.b + ')'; |
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| 233 | } |
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| 234 | this.toHex = function () { |
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| 235 | var r = this.r.toString(16); |
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| 236 | var g = this.g.toString(16); |
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| 237 | var b = this.b.toString(16); |
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| 238 | if (r.length == 1) r = '0' + r; |
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| 239 | if (g.length == 1) g = '0' + g; |
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| 240 | if (b.length == 1) b = '0' + b; |
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| 241 | return '#' + r + g + b; |
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| 242 | } |
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| 243 | |||
| 244 | // help |
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| 245 | this.getHelpXML = function () { |
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| 246 | |||
| 247 | var examples = new Array(); |
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| 248 | // add regexps |
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| 249 | for (var i = 0; i < color_defs.length; i++) { |
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| 250 | var example = color_defs[i].example; |
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| 251 | for (var j = 0; j < example.length; j++) { |
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| 252 | examples[examples.length] = example[j]; |
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| 253 | } |
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| 254 | } |
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| 255 | // add type-in colors |
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| 256 | for (var sc in simple_colors) { |
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| 257 | examples[examples.length] = sc; |
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| 258 | } |
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| 259 | |||
| 260 | var xml = document.createElement('ul'); |
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| 261 | xml.setAttribute('id', 'rgbcolor-examples'); |
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| 262 | for (var i = 0; i < examples.length; i++) { |
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| 263 | try { |
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| 264 | var list_item = document.createElement('li'); |
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| 265 | var list_color = new RGBColor(examples[i]); |
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| 266 | var example_div = document.createElement('div'); |
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| 267 | example_div.style.cssText = |
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| 268 | 'margin: 3px; ' |
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| 269 | + 'border: 1px solid black; ' |
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| 270 | + 'background:' + list_color.toHex() + '; ' |
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| 271 | + 'color:' + list_color.toHex() |
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| 272 | ; |
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| 273 | example_div.appendChild(document.createTextNode('test')); |
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| 274 | var list_item_value = document.createTextNode( |
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| 275 | ' ' + examples[i] + ' -> ' + list_color.toRGB() + ' -> ' + list_color.toHex() |
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| 276 | ); |
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| 277 | list_item.appendChild(example_div); |
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| 278 | list_item.appendChild(list_item_value); |
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| 279 | xml.appendChild(list_item); |
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| 280 | |||
| 281 | } catch(e){} |
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| 282 | } |
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| 283 | return xml; |
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| 284 | |||
| 285 | } |
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| 286 | |||
| 287 | } |
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| 288 |