[29567] | 1 | /**
|
---|
| 2 | * A class to parse color values
|
---|
| 3 | * @author Stoyan Stefanov <[email protected]>
|
---|
| 4 | * @link http://www.phpied.com/rgb-color-parser-in-javascript/
|
---|
| 5 | * @license Use it if you like it
|
---|
| 6 | */
|
---|
| 7 | function RGBColor(color_string)
|
---|
| 8 | {
|
---|
| 9 | this.ok = false;
|
---|
| 10 |
|
---|
| 11 | // strip any leading #
|
---|
| 12 | if (color_string.charAt(0) == '#') { // remove # if any
|
---|
| 13 | color_string = color_string.substr(1,6);
|
---|
| 14 | }
|
---|
| 15 |
|
---|
| 16 | color_string = color_string.replace(/ /g,'');
|
---|
| 17 | color_string = color_string.toLowerCase();
|
---|
| 18 |
|
---|
| 19 | // before getting into regexps, try simple matches
|
---|
| 20 | // and overwrite the input
|
---|
| 21 | var simple_colors = {
|
---|
| 22 | aliceblue: 'f0f8ff',
|
---|
| 23 | antiquewhite: 'faebd7',
|
---|
| 24 | aqua: '00ffff',
|
---|
| 25 | aquamarine: '7fffd4',
|
---|
| 26 | azure: 'f0ffff',
|
---|
| 27 | beige: 'f5f5dc',
|
---|
| 28 | bisque: 'ffe4c4',
|
---|
| 29 | black: '000000',
|
---|
| 30 | blanchedalmond: 'ffebcd',
|
---|
| 31 | blue: '0000ff',
|
---|
| 32 | blueviolet: '8a2be2',
|
---|
| 33 | brown: 'a52a2a',
|
---|
| 34 | burlywood: 'deb887',
|
---|
| 35 | cadetblue: '5f9ea0',
|
---|
| 36 | chartreuse: '7fff00',
|
---|
| 37 | chocolate: 'd2691e',
|
---|
| 38 | coral: 'ff7f50',
|
---|
| 39 | cornflowerblue: '6495ed',
|
---|
| 40 | cornsilk: 'fff8dc',
|
---|
| 41 | crimson: 'dc143c',
|
---|
| 42 | cyan: '00ffff',
|
---|
| 43 | darkblue: '00008b',
|
---|
| 44 | darkcyan: '008b8b',
|
---|
| 45 | darkgoldenrod: 'b8860b',
|
---|
| 46 | darkgray: 'a9a9a9',
|
---|
| 47 | darkgreen: '006400',
|
---|
| 48 | darkkhaki: 'bdb76b',
|
---|
| 49 | darkmagenta: '8b008b',
|
---|
| 50 | darkolivegreen: '556b2f',
|
---|
| 51 | darkorange: 'ff8c00',
|
---|
| 52 | darkorchid: '9932cc',
|
---|
| 53 | darkred: '8b0000',
|
---|
| 54 | darksalmon: 'e9967a',
|
---|
| 55 | darkseagreen: '8fbc8f',
|
---|
| 56 | darkslateblue: '483d8b',
|
---|
| 57 | darkslategray: '2f4f4f',
|
---|
| 58 | darkturquoise: '00ced1',
|
---|
| 59 | darkviolet: '9400d3',
|
---|
| 60 | deeppink: 'ff1493',
|
---|
| 61 | deepskyblue: '00bfff',
|
---|
| 62 | dimgray: '696969',
|
---|
| 63 | dodgerblue: '1e90ff',
|
---|
| 64 | feldspar: 'd19275',
|
---|
| 65 | firebrick: 'b22222',
|
---|
| 66 | floralwhite: 'fffaf0',
|
---|
| 67 | forestgreen: '228b22',
|
---|
| 68 | fuchsia: 'ff00ff',
|
---|
| 69 | gainsboro: 'dcdcdc',
|
---|
| 70 | ghostwhite: 'f8f8ff',
|
---|
| 71 | gold: 'ffd700',
|
---|
| 72 | goldenrod: 'daa520',
|
---|
| 73 | gray: '808080',
|
---|
| 74 | green: '008000',
|
---|
| 75 | greenyellow: 'adff2f',
|
---|
| 76 | honeydew: 'f0fff0',
|
---|
| 77 | hotpink: 'ff69b4',
|
---|
| 78 | indianred : 'cd5c5c',
|
---|
| 79 | indigo : '4b0082',
|
---|
| 80 | ivory: 'fffff0',
|
---|
| 81 | khaki: 'f0e68c',
|
---|
| 82 | lavender: 'e6e6fa',
|
---|
| 83 | lavenderblush: 'fff0f5',
|
---|
| 84 | lawngreen: '7cfc00',
|
---|
| 85 | lemonchiffon: 'fffacd',
|
---|
| 86 | lightblue: 'add8e6',
|
---|
| 87 | lightcoral: 'f08080',
|
---|
| 88 | lightcyan: 'e0ffff',
|
---|
| 89 | lightgoldenrodyellow: 'fafad2',
|
---|
| 90 | lightgrey: 'd3d3d3',
|
---|
| 91 | lightgreen: '90ee90',
|
---|
| 92 | lightpink: 'ffb6c1',
|
---|
| 93 | lightsalmon: 'ffa07a',
|
---|
| 94 | lightseagreen: '20b2aa',
|
---|
| 95 | lightskyblue: '87cefa',
|
---|
| 96 | lightslateblue: '8470ff',
|
---|
| 97 | lightslategray: '778899',
|
---|
| 98 | lightsteelblue: 'b0c4de',
|
---|
| 99 | lightyellow: 'ffffe0',
|
---|
| 100 | lime: '00ff00',
|
---|
| 101 | limegreen: '32cd32',
|
---|
| 102 | linen: 'faf0e6',
|
---|
| 103 | magenta: 'ff00ff',
|
---|
| 104 | maroon: '800000',
|
---|
| 105 | mediumaquamarine: '66cdaa',
|
---|
| 106 | mediumblue: '0000cd',
|
---|
| 107 | mediumorchid: 'ba55d3',
|
---|
| 108 | mediumpurple: '9370d8',
|
---|
| 109 | mediumseagreen: '3cb371',
|
---|
| 110 | mediumslateblue: '7b68ee',
|
---|
| 111 | mediumspringgreen: '00fa9a',
|
---|
| 112 | mediumturquoise: '48d1cc',
|
---|
| 113 | mediumvioletred: 'c71585',
|
---|
| 114 | midnightblue: '191970',
|
---|
| 115 | mintcream: 'f5fffa',
|
---|
| 116 | mistyrose: 'ffe4e1',
|
---|
| 117 | moccasin: 'ffe4b5',
|
---|
| 118 | navajowhite: 'ffdead',
|
---|
| 119 | navy: '000080',
|
---|
| 120 | oldlace: 'fdf5e6',
|
---|
| 121 | olive: '808000',
|
---|
| 122 | olivedrab: '6b8e23',
|
---|
| 123 | orange: 'ffa500',
|
---|
| 124 | orangered: 'ff4500',
|
---|
| 125 | orchid: 'da70d6',
|
---|
| 126 | palegoldenrod: 'eee8aa',
|
---|
| 127 | palegreen: '98fb98',
|
---|
| 128 | paleturquoise: 'afeeee',
|
---|
| 129 | palevioletred: 'd87093',
|
---|
| 130 | papayawhip: 'ffefd5',
|
---|
| 131 | peachpuff: 'ffdab9',
|
---|
| 132 | peru: 'cd853f',
|
---|
| 133 | pink: 'ffc0cb',
|
---|
| 134 | plum: 'dda0dd',
|
---|
| 135 | powderblue: 'b0e0e6',
|
---|
| 136 | purple: '800080',
|
---|
| 137 | red: 'ff0000',
|
---|
| 138 | rosybrown: 'bc8f8f',
|
---|
| 139 | royalblue: '4169e1',
|
---|
| 140 | saddlebrown: '8b4513',
|
---|
| 141 | salmon: 'fa8072',
|
---|
| 142 | sandybrown: 'f4a460',
|
---|
| 143 | seagreen: '2e8b57',
|
---|
| 144 | seashell: 'fff5ee',
|
---|
| 145 | sienna: 'a0522d',
|
---|
| 146 | silver: 'c0c0c0',
|
---|
| 147 | skyblue: '87ceeb',
|
---|
| 148 | slateblue: '6a5acd',
|
---|
| 149 | slategray: '708090',
|
---|
| 150 | snow: 'fffafa',
|
---|
| 151 | springgreen: '00ff7f',
|
---|
| 152 | steelblue: '4682b4',
|
---|
| 153 | tan: 'd2b48c',
|
---|
| 154 | teal: '008080',
|
---|
| 155 | thistle: 'd8bfd8',
|
---|
| 156 | tomato: 'ff6347',
|
---|
| 157 | turquoise: '40e0d0',
|
---|
| 158 | violet: 'ee82ee',
|
---|
| 159 | violetred: 'd02090',
|
---|
| 160 | wheat: 'f5deb3',
|
---|
| 161 | white: 'ffffff',
|
---|
| 162 | whitesmoke: 'f5f5f5',
|
---|
| 163 | yellow: 'ffff00',
|
---|
| 164 | yellowgreen: '9acd32'
|
---|
| 165 | };
|
---|
| 166 | for (var key in simple_colors) {
|
---|
| 167 | if (color_string == key) {
|
---|
| 168 | color_string = simple_colors[key];
|
---|
| 169 | }
|
---|
| 170 | }
|
---|
| 171 | // emd of simple type-in colors
|
---|
| 172 |
|
---|
| 173 | // array of color definition objects
|
---|
| 174 | var color_defs = [
|
---|
| 175 | {
|
---|
| 176 | re: /^rgb\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\)$/,
|
---|
| 177 | example: ['rgb(123, 234, 45)', 'rgb(255,234,245)'],
|
---|
| 178 | process: function (bits){
|
---|
| 179 | return [
|
---|
| 180 | parseInt(bits[1]),
|
---|
| 181 | parseInt(bits[2]),
|
---|
| 182 | parseInt(bits[3])
|
---|
| 183 | ];
|
---|
| 184 | }
|
---|
| 185 | },
|
---|
| 186 | {
|
---|
| 187 | re: /^(\w{2})(\w{2})(\w{2})$/,
|
---|
| 188 | example: ['#00ff00', '336699'],
|
---|
| 189 | process: function (bits){
|
---|
| 190 | return [
|
---|
| 191 | parseInt(bits[1], 16),
|
---|
| 192 | parseInt(bits[2], 16),
|
---|
| 193 | parseInt(bits[3], 16)
|
---|
| 194 | ];
|
---|
| 195 | }
|
---|
| 196 | },
|
---|
| 197 | {
|
---|
| 198 | re: /^(\w{1})(\w{1})(\w{1})$/,
|
---|
| 199 | example: ['#fb0', 'f0f'],
|
---|
| 200 | process: function (bits){
|
---|
| 201 | return [
|
---|
| 202 | parseInt(bits[1] + bits[1], 16),
|
---|
| 203 | parseInt(bits[2] + bits[2], 16),
|
---|
| 204 | parseInt(bits[3] + bits[3], 16)
|
---|
| 205 | ];
|
---|
| 206 | }
|
---|
| 207 | }
|
---|
| 208 | ];
|
---|
| 209 |
|
---|
| 210 | // search through the definitions to find a match
|
---|
| 211 | for (var i = 0; i < color_defs.length; i++) {
|
---|
| 212 | var re = color_defs[i].re;
|
---|
| 213 | var processor = color_defs[i].process;
|
---|
| 214 | var bits = re.exec(color_string);
|
---|
| 215 | if (bits) {
|
---|
| 216 | channels = processor(bits);
|
---|
| 217 | this.r = channels[0];
|
---|
| 218 | this.g = channels[1];
|
---|
| 219 | this.b = channels[2];
|
---|
| 220 | this.ok = true;
|
---|
| 221 | }
|
---|
| 222 |
|
---|
| 223 | }
|
---|
| 224 |
|
---|
| 225 | // validate/cleanup values
|
---|
| 226 | this.r = (this.r < 0 || isNaN(this.r)) ? 0 : ((this.r > 255) ? 255 : this.r);
|
---|
| 227 | this.g = (this.g < 0 || isNaN(this.g)) ? 0 : ((this.g > 255) ? 255 : this.g);
|
---|
| 228 | this.b = (this.b < 0 || isNaN(this.b)) ? 0 : ((this.b > 255) ? 255 : this.b);
|
---|
| 229 |
|
---|
| 230 | // some getters
|
---|
| 231 | this.toRGB = function () {
|
---|
| 232 | return 'rgb(' + this.r + ', ' + this.g + ', ' + this.b + ')';
|
---|
| 233 | }
|
---|
| 234 | this.toHex = function () {
|
---|
| 235 | var r = this.r.toString(16);
|
---|
| 236 | var g = this.g.toString(16);
|
---|
| 237 | var b = this.b.toString(16);
|
---|
| 238 | if (r.length == 1) r = '0' + r;
|
---|
| 239 | if (g.length == 1) g = '0' + g;
|
---|
| 240 | if (b.length == 1) b = '0' + b;
|
---|
| 241 | return '#' + r + g + b;
|
---|
| 242 | }
|
---|
| 243 |
|
---|
| 244 | // help
|
---|
| 245 | this.getHelpXML = function () {
|
---|
| 246 |
|
---|
| 247 | var examples = new Array();
|
---|
| 248 | // add regexps
|
---|
| 249 | for (var i = 0; i < color_defs.length; i++) {
|
---|
| 250 | var example = color_defs[i].example;
|
---|
| 251 | for (var j = 0; j < example.length; j++) {
|
---|
| 252 | examples[examples.length] = example[j];
|
---|
| 253 | }
|
---|
| 254 | }
|
---|
| 255 | // add type-in colors
|
---|
| 256 | for (var sc in simple_colors) {
|
---|
| 257 | examples[examples.length] = sc;
|
---|
| 258 | }
|
---|
| 259 |
|
---|
| 260 | var xml = document.createElement('ul');
|
---|
| 261 | xml.setAttribute('id', 'rgbcolor-examples');
|
---|
| 262 | for (var i = 0; i < examples.length; i++) {
|
---|
| 263 | try {
|
---|
| 264 | var list_item = document.createElement('li');
|
---|
| 265 | var list_color = new RGBColor(examples[i]);
|
---|
| 266 | var example_div = document.createElement('div');
|
---|
| 267 | example_div.style.cssText =
|
---|
| 268 | 'margin: 3px; '
|
---|
| 269 | + 'border: 1px solid black; '
|
---|
| 270 | + 'background:' + list_color.toHex() + '; '
|
---|
| 271 | + 'color:' + list_color.toHex()
|
---|
| 272 | ;
|
---|
| 273 | example_div.appendChild(document.createTextNode('test'));
|
---|
| 274 | var list_item_value = document.createTextNode(
|
---|
| 275 | ' ' + examples[i] + ' -> ' + list_color.toRGB() + ' -> ' + list_color.toHex()
|
---|
| 276 | );
|
---|
| 277 | list_item.appendChild(example_div);
|
---|
| 278 | list_item.appendChild(list_item_value);
|
---|
| 279 | xml.appendChild(list_item);
|
---|
| 280 |
|
---|
| 281 | } catch(e){}
|
---|
| 282 | }
|
---|
| 283 | return xml;
|
---|
| 284 |
|
---|
| 285 | }
|
---|
| 286 |
|
---|
| 287 | }
|
---|
| 288 |
|
---|