/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */ YAHOO.util.Color = new function() { // Adapted from http://www.easyrgb.com/math.html // hsv values = 0 - 1 // rgb values 0 - 255 this.hsv2rgb = function (h, s, v) { var r, g, b; if ( s == 0 ) { r = v * 255; g = v * 255; b = v * 255; } else { // h must be < 1 var var_h = h * 6; if ( var_h == 6 ) { var_h = 0; } //Or ... var_i = floor( var_h ) var var_i = Math.floor( var_h ); var var_1 = v * ( 1 - s ); var var_2 = v * ( 1 - s * ( var_h - var_i ) ); var var_3 = v * ( 1 - s * ( 1 - ( var_h - var_i ) ) ); if ( var_i == 0 ) { var_r = v; var_g = var_3; var_b = var_1; } else if ( var_i == 1 ) { var_r = var_2; var_g = v; var_b = var_1; } else if ( var_i == 2 ) { var_r = var_1; var_g = v; var_b = var_3 } else if ( var_i == 3 ) { var_r = var_1; var_g = var_2; var_b = v; } else if ( var_i == 4 ) { var_r = var_3; var_g = var_1; var_b = v; } else { var_r = v; var_g = var_1; var_b = var_2; } r = var_r * 255; //rgb results = 0 ÷ 255 g = var_g * 255; b = var_b * 255; } return [Math.round(r), Math.round(g), Math.round(b)]; }; this.rgb2hex = function (r,g,b) { return this.toHex(r) + this.toHex(g) + this.toHex(b); }; this.hexchars = "0123456789ABCDEF"; this.toHex = function(n) { n = n || 0; n = parseInt(n, 10); if (isNaN(n)) n = 0; n = Math.round(Math.min(Math.max(0, n), 255)); return this.hexchars.charAt((n - n % 16) / 16) + this.hexchars.charAt(n % 16); }; this.toDec = function(hexchar) { return this.hexchars.indexOf(hexchar.toUpperCase()); }; this.hex2rgb = function(str) { var rgb = []; rgb[0] = (this.toDec(str.substr(0, 1)) * 16) + this.toDec(str.substr(1, 1)); rgb[1] = (this.toDec(str.substr(2, 1)) * 16) + this.toDec(str.substr(3, 1)); rgb[2] = (this.toDec(str.substr(4, 1)) * 16) + this.toDec(str.substr(5, 1)); // gLogger.debug("hex2rgb: " + str + ", " + rgb.toString()); return rgb; }; this.isValidRGB = function(a) { if ((!a[0] && a[0] !=0) || isNaN(a[0]) || a[0] < 0 || a[0] > 255) return false; if ((!a[1] && a[1] !=0) || isNaN(a[1]) || a[1] < 0 || a[1] > 255) return false; if ((!a[2] && a[2] !=0) || isNaN(a[2]) || a[2] < 0 || a[2] > 255) return false; return true; }; // own //------------------------------ >>> // hexval -> 'ff0066' this.isValidHex = function(hexval) { if(!hexval || hexval.length!=6) return false; var rgb = this.hex2rgb(hexval); var boo = this.isValidRGB(rgb); return boo; }; // hexvalsharp -> '#ff0066' this.isValidHexSharp = function(hexvalsharp) { if(!hexvalsharp || hexvalsharp.length!=7) return false; var char = hexvalsharp.substr(0, 1); if(char!='#') return false; hexval = hexvalsharp.substr(1, 6); var rgb = this.hex2rgb(hexval); var boo = this.isValidRGB(rgb); return boo; }; // colorstr -> 'black' this.isValidColorStr = function(colorstr) { var hexvalsharp = this.ColorStr_to_HexSharp(colorstr); var boo = this.isValidHexSharp(hexvalsharp); return boo; }; // colorstr -> 'black' this.ColorStr_to_HexSharp = function(colorstr) { var arr_str = Array(); var arr_hex = Array(); arr_str[1] = 'black'; arr_hex[1] = '#000000'; arr_str[2] = 'maroon'; arr_hex[2] = '#800000'; arr_str[3] = 'green'; arr_hex[3] = '#008000'; arr_str[4] = 'olive'; arr_hex[4] = '#808000'; arr_str[5] = 'navy'; arr_hex[5] = '#000080'; arr_str[6] = 'purple'; arr_hex[6] = '#800080'; arr_str[7] = 'teal'; arr_hex[7] = '#008080'; arr_str[8] = 'gray'; arr_hex[8] = '#808080'; arr_str[9] = 'silver'; arr_hex[9] = '#C0C0C0'; arr_str[10] = 'red'; arr_hex[10] = '#FF0000'; arr_str[11] = 'lime'; arr_hex[11] = '#00FF00'; arr_str[12] = 'yellow'; arr_hex[12] = '#FFFF00'; arr_str[13] = 'blue'; arr_hex[13] = '#0000FF'; arr_str[14] = 'fuchsia'; arr_hex[14] = '#FF00FF'; arr_str[15] = 'aqua'; arr_hex[15] = '#00FFFF'; arr_str[16] = 'white'; arr_hex[16] = '#FFFFFF'; arr_str[17] = 'aliceblue'; arr_hex[17] = '#F0F8FF'; arr_str[18] = 'antiquewhite'; arr_hex[18] = '#FAEBD7'; arr_str[19] = 'aquamarine'; arr_hex[19] = '#7FFFD4'; arr_str[20] = 'azure'; arr_hex[20] = '#F0FFFF'; arr_str[21] = 'beige'; arr_hex[21] = '#F5F5DC'; arr_str[22] = 'blueviolet'; arr_hex[22] = '#8A2BE2'; arr_str[23] = 'brown'; arr_hex[23] = '#A52A2A'; arr_str[24] = 'burlywood'; arr_hex[24] = '#DEB887'; arr_str[25] = 'cadetblue'; arr_hex[25] = '#5F9EA0'; arr_str[26] = 'chartreuse'; arr_hex[26] = '#7FFF00'; arr_str[27] = 'chocolate'; arr_hex[27] = '#D2691E'; arr_str[28] = 'coral'; arr_hex[28] = '#FF7F50'; arr_str[29] = 'cornflowerblue'; arr_hex[29] = '#6495ED'; arr_str[30] = 'cornsilk'; arr_hex[30] = '#FFF8DC'; arr_str[31] = 'crimson'; arr_hex[31] = '#DC143C'; arr_str[32] = 'darkblue'; arr_hex[32] = '#00008B'; arr_str[33] = 'darkcyan'; arr_hex[33] = '#008B8B'; arr_str[34] = 'darkgoldenrod'; arr_hex[34] = '#B8860B'; arr_str[35] = 'darkgray'; arr_hex[35] = '#A9A9A9'; arr_str[36] = 'darkgreen'; arr_hex[36] = '#006400'; arr_str[37] = 'darkkhaki'; arr_hex[37] = '#BDB76B'; arr_str[38] = 'darkmagenta'; arr_hex[38] = '#8B008B'; arr_str[39] = 'darkolivegreen'; arr_hex[39] = '#556B2F'; arr_str[40] = 'darkorange'; arr_hex[40] = '#FF8C00'; arr_str[41] = 'darkorchid'; arr_hex[41] = '#9932CC'; arr_str[42] = 'darkred'; arr_hex[42] = '#8B0000'; arr_str[43] = 'darksalmon'; arr_hex[43] = '#E9967A'; arr_str[44] = 'darkseagreen'; arr_hex[44] = '#8FBC8F'; arr_str[45] = 'darkslateblue'; arr_hex[45] = '#483D8B'; arr_str[46] = 'darkslategray'; arr_hex[46] = '#2F4F4F'; arr_str[47] = 'darkturquoise'; arr_hex[47] = '#00CED1'; arr_str[48] = 'darkviolet'; arr_hex[48] = '#9400D3'; arr_str[49] = 'deeppink'; arr_hex[49] = '#FF1493'; arr_str[50] = 'deepskyblue'; arr_hex[50] = '#00BFFF'; arr_str[51] = 'dimgray'; arr_hex[51] = '#696969'; arr_str[52] = 'dodgerblue'; arr_hex[52] = '#1E90FF'; arr_str[53] = 'firebrick'; arr_hex[53] = '#B22222'; arr_str[54] = 'floralwhite'; arr_hex[54] = '#FFFAF0'; arr_str[55] = 'forestgreen'; arr_hex[55] = '#228B22'; arr_str[56] = 'gainsboro'; arr_hex[56] = '#DCDCDC'; arr_str[57] = 'ghostwhite'; arr_hex[57] = '#F8F8FF'; arr_str[58] = 'gold'; arr_hex[58] = '#FFD700'; arr_str[59] = 'goldenrod'; arr_hex[59] = '#DAA520'; arr_str[60] = 'greenyellow'; arr_hex[60] = '#ADFF2F'; arr_str[61] = 'honeydew'; arr_hex[61] = '#F0FFF0'; arr_str[62] = 'hotpink'; arr_hex[62] = '#FF69B4'; arr_str[63] = 'indianred'; arr_hex[63] = '#CD5C5C'; arr_str[64] = 'indigo'; arr_hex[64] = '#4B0082'; arr_str[65] = 'ivory'; arr_hex[65] = '#FFFFF0'; arr_str[66] = 'khaki'; arr_hex[66] = '#F0E68C'; arr_str[67] = 'lavender'; arr_hex[67] = '#E6E6FA'; arr_str[68] = 'lavenderblush'; arr_hex[68] = '#FFF0F5'; arr_str[69] = 'lawngreen'; arr_hex[69] = '#7CFC00'; arr_str[70] = 'lemonchiffon'; arr_hex[70] = '#FFFACD'; arr_str[71] = 'lightblue'; arr_hex[71] = '#ADD8E6'; arr_str[72] = 'lightcoral'; arr_hex[72] = '#F08080'; arr_str[73] = 'lightcyan'; arr_hex[73] = '#E0FFFF'; arr_str[74] = 'lightgoldenrodyellow'; arr_hex[74] = '#FAFAD2'; arr_str[75] = 'lightgreen'; arr_hex[75] = '#90EE90'; arr_str[76] = 'lightgrey'; arr_hex[76] = '#D3D3D3'; arr_str[77] = 'lightpink'; arr_hex[77] = '#FFB6C1'; arr_str[78] = 'lightsalmon'; arr_hex[78] = '#FFA07A'; arr_str[79] = 'lightseagreen'; arr_hex[79] = '#20B2AA'; arr_str[80] = 'lightskyblue'; arr_hex[80] = '#87CEFA'; arr_str[81] = 'lightslategray'; arr_hex[81] = '#778899'; arr_str[82] = 'lightsteelblue'; arr_hex[82] = '#B0C4DE'; arr_str[83] = 'lightyellow'; arr_hex[83] = '#FFFFE0'; arr_str[84] = 'limegreen'; arr_hex[84] = '#32CD32'; arr_str[85] = 'linen'; arr_hex[85] = '#FAF0E6'; arr_str[86] = 'mediumaquamarine'; arr_hex[86] = '#66CDAA'; arr_str[87] = 'mediumblue'; arr_hex[87] = '#0000CD'; arr_str[88] = 'mediumorchid'; arr_hex[88] = '#BA55D3'; arr_str[89] = 'mediumpurple'; arr_hex[89] = '#9370DB'; arr_str[90] = 'mediumseagreen'; arr_hex[90] = '#3CB371'; arr_str[91] = 'mediumslateblue'; arr_hex[91] = '#7B68EE'; arr_str[92] = 'mediumspringgreen'; arr_hex[92] = '#00FA9A'; arr_str[93] = 'mediumturquoise'; arr_hex[93] = '#48D1CC'; arr_str[94] = 'mediumvioletred'; arr_hex[94] = '#C71585'; arr_str[95] = 'midnightblue'; arr_hex[95] = '#191970'; arr_str[96] = 'mintcream'; arr_hex[96] = '#F5FFFA'; arr_str[97] = 'mistyrose'; arr_hex[97] = '#FFE4E1'; arr_str[98] = 'moccasin'; arr_hex[98] = '#FFE4B5'; arr_str[99] = 'navajowhite'; arr_hex[99] = '#FFDEAD'; arr_str[100] = 'oldlace'; arr_hex[100] = '#FDF5E6'; arr_str[101] = 'olivedrab'; arr_hex[101] = '#6B8E23'; arr_str[102] = 'orange'; arr_hex[102] = '#FFA500'; arr_str[103] = 'orangered'; arr_hex[103] = '#FF4500'; arr_str[104] = 'orchid'; arr_hex[104] = '#DA70D6'; arr_str[105] = 'palegoldenrod'; arr_hex[105] = '#EEE8AA'; arr_str[106] = 'palegreen'; arr_hex[106] = '#98FB98'; arr_str[107] = 'paleturquoise'; arr_hex[107] = '#AFEEEE'; arr_str[108] = 'palevioletred'; arr_hex[108] = '#DB7093'; arr_str[109] = 'papayawhip'; arr_hex[109] = '#FFEFD5'; arr_str[110] = 'peachpuff'; arr_hex[110] = '#FFDAB9'; arr_str[111] = 'peru'; arr_hex[111] = '#CD853F'; arr_str[112] = 'pink'; arr_hex[112] = '#FFC0CB'; arr_str[113] = 'plum'; arr_hex[113] = '#DDA0DD'; arr_str[114] = 'powderblue'; arr_hex[114] = '#B0E0E6'; arr_str[115] = 'rosybrown'; arr_hex[115] = '#BC8F8F'; arr_str[116] = 'royalblue'; arr_hex[116] = '#4169E1'; arr_str[117] = 'saddlebrown'; arr_hex[117] = '#8B4513'; arr_str[118] = 'salmon'; arr_hex[118] = '#FA8072'; arr_str[119] = 'sandybrown'; arr_hex[119] = '#F4A460'; arr_str[120] = 'seagreen'; arr_hex[120] = '#2E8B57'; arr_str[121] = 'seashell'; arr_hex[121] = '#FFF5EE'; arr_str[122] = 'sienna'; arr_hex[122] = '#A0522D'; arr_str[123] = 'skyblue'; arr_hex[123] = '#87CEEB'; arr_str[124] = 'slateblue'; arr_hex[124] = '#6A5ACD'; arr_str[125] = 'slategray'; arr_hex[125] = '#708090'; arr_str[126] = 'snow'; arr_hex[126] = '#FFFAFA'; arr_str[127] = 'springgreen'; arr_hex[127] = '#00FF7F'; arr_str[128] = 'steelblue'; arr_hex[128] = '#4682B4'; arr_str[129] = 'tan'; arr_hex[129] = '#D2B48C'; arr_str[130] = 'thistle'; arr_hex[130] = '#D8BFD8'; arr_str[131] = 'tomato'; arr_hex[131] = '#FF6347'; arr_str[132] = 'turquoise'; arr_hex[132] = '#40E0D0'; arr_str[133] = 'violet'; arr_hex[133] = '#EE82EE'; arr_str[134] = 'wheat'; arr_hex[134] = '#F5DEB3'; arr_str[135] = 'whitesmoke'; arr_hex[135] = '#F5F5F5'; arr_str[136] = 'yellowgreen'; arr_hex[136] = '#9ACD32'; colorstr = colorstr.toLowerCase(); var ret = false; for(i=1; i<=136; i++) { if(arr_str[i]==colorstr) { ret = arr_hex[i]; } } return ret; }; this.rgb2hsv = function(xxx) { var R = xxx[0]; var G = xxx[1]; var B = xxx[2]; R = ( R / 255 ); G = ( G / 255 ); B = ( B / 255 ); var H = 0; var S = 0; var V = 0; MAX = Math.max(R,G,B); MIN = Math.min(R,G,B); if (MAX == MIN) return [0,0,Math.round(MAX * 100)]; if (MAX == 0) return[0,0,0]; S = (MAX-MIN) * 100 / MAX ; V = MAX * 100; if (MAX == R && G>=B) H = 60 * (G-B)/(MAX-MIN); if (MAX == R && G