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3113 lines
98 KiB
3113 lines
98 KiB
/**
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* @license A class to parse color values
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* @author Stoyan Stefanov <sstoo@gmail.com>
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* @link http://www.phpied.com/rgb-color-parser-in-javascript/
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* Use it if you like it
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*
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*/
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function RGBColor(color_string)
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{
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this.ok = false;
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// strip any leading #
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if (color_string.charAt(0) == '#') { // remove # if any
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color_string = color_string.substr(1,6);
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}
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color_string = color_string.replace(/ /g,'');
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color_string = color_string.toLowerCase();
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// before getting into regexps, try simple matches
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// and overwrite the input
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var simple_colors = {
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aliceblue: 'f0f8ff',
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antiquewhite: 'faebd7',
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aqua: '00ffff',
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aquamarine: '7fffd4',
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azure: 'f0ffff',
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beige: 'f5f5dc',
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bisque: 'ffe4c4',
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black: '000000',
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blanchedalmond: 'ffebcd',
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blue: '0000ff',
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blueviolet: '8a2be2',
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brown: 'a52a2a',
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burlywood: 'deb887',
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cadetblue: '5f9ea0',
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chartreuse: '7fff00',
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chocolate: 'd2691e',
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coral: 'ff7f50',
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cornflowerblue: '6495ed',
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cornsilk: 'fff8dc',
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crimson: 'dc143c',
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cyan: '00ffff',
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darkblue: '00008b',
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darkcyan: '008b8b',
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darkgoldenrod: 'b8860b',
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darkgray: 'a9a9a9',
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darkgreen: '006400',
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darkkhaki: 'bdb76b',
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darkmagenta: '8b008b',
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darkolivegreen: '556b2f',
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darkorange: 'ff8c00',
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darkorchid: '9932cc',
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darkred: '8b0000',
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darksalmon: 'e9967a',
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darkseagreen: '8fbc8f',
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darkslateblue: '483d8b',
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darkslategray: '2f4f4f',
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darkturquoise: '00ced1',
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darkviolet: '9400d3',
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deeppink: 'ff1493',
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deepskyblue: '00bfff',
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dimgray: '696969',
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dodgerblue: '1e90ff',
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feldspar: 'd19275',
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firebrick: 'b22222',
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floralwhite: 'fffaf0',
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forestgreen: '228b22',
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fuchsia: 'ff00ff',
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gainsboro: 'dcdcdc',
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ghostwhite: 'f8f8ff',
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gold: 'ffd700',
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goldenrod: 'daa520',
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gray: '808080',
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green: '008000',
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greenyellow: 'adff2f',
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honeydew: 'f0fff0',
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hotpink: 'ff69b4',
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indianred : 'cd5c5c',
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indigo : '4b0082',
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ivory: 'fffff0',
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khaki: 'f0e68c',
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lavender: 'e6e6fa',
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lavenderblush: 'fff0f5',
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lawngreen: '7cfc00',
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lemonchiffon: 'fffacd',
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lightblue: 'add8e6',
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lightcoral: 'f08080',
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lightcyan: 'e0ffff',
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lightgoldenrodyellow: 'fafad2',
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lightgrey: 'd3d3d3',
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lightgreen: '90ee90',
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lightpink: 'ffb6c1',
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lightsalmon: 'ffa07a',
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lightseagreen: '20b2aa',
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lightskyblue: '87cefa',
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lightslateblue: '8470ff',
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lightslategray: '778899',
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lightsteelblue: 'b0c4de',
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lightyellow: 'ffffe0',
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lime: '00ff00',
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limegreen: '32cd32',
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linen: 'faf0e6',
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magenta: 'ff00ff',
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maroon: '800000',
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mediumaquamarine: '66cdaa',
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mediumblue: '0000cd',
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mediumorchid: 'ba55d3',
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mediumpurple: '9370d8',
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mediumseagreen: '3cb371',
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mediumslateblue: '7b68ee',
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mediumspringgreen: '00fa9a',
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mediumturquoise: '48d1cc',
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mediumvioletred: 'c71585',
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midnightblue: '191970',
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mintcream: 'f5fffa',
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mistyrose: 'ffe4e1',
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moccasin: 'ffe4b5',
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navajowhite: 'ffdead',
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navy: '000080',
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oldlace: 'fdf5e6',
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olive: '808000',
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olivedrab: '6b8e23',
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orange: 'ffa500',
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orangered: 'ff4500',
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orchid: 'da70d6',
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palegoldenrod: 'eee8aa',
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palegreen: '98fb98',
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paleturquoise: 'afeeee',
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palevioletred: 'd87093',
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papayawhip: 'ffefd5',
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peachpuff: 'ffdab9',
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peru: 'cd853f',
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pink: 'ffc0cb',
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plum: 'dda0dd',
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powderblue: 'b0e0e6',
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purple: '800080',
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red: 'ff0000',
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rosybrown: 'bc8f8f',
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royalblue: '4169e1',
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saddlebrown: '8b4513',
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salmon: 'fa8072',
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sandybrown: 'f4a460',
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seagreen: '2e8b57',
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seashell: 'fff5ee',
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sienna: 'a0522d',
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silver: 'c0c0c0',
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skyblue: '87ceeb',
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slateblue: '6a5acd',
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slategray: '708090',
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snow: 'fffafa',
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springgreen: '00ff7f',
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steelblue: '4682b4',
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tan: 'd2b48c',
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teal: '008080',
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thistle: 'd8bfd8',
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tomato: 'ff6347',
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turquoise: '40e0d0',
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violet: 'ee82ee',
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violetred: 'd02090',
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wheat: 'f5deb3',
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white: 'ffffff',
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whitesmoke: 'f5f5f5',
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yellow: 'ffff00',
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yellowgreen: '9acd32'
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};
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for (var key in simple_colors) {
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if (color_string == key) {
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color_string = simple_colors[key];
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}
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}
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// emd of simple type-in colors
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// array of color definition objects
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var color_defs = [
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{
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re: /^rgb\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\)$/,
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example: ['rgb(123, 234, 45)', 'rgb(255,234,245)'],
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process: function (bits){
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return [
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parseInt(bits[1]),
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parseInt(bits[2]),
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parseInt(bits[3])
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];
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}
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},
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{
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re: /^(\w{2})(\w{2})(\w{2})$/,
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example: ['#00ff00', '336699'],
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process: function (bits){
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return [
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parseInt(bits[1], 16),
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parseInt(bits[2], 16),
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parseInt(bits[3], 16)
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];
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}
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},
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{
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re: /^(\w{1})(\w{1})(\w{1})$/,
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example: ['#fb0', 'f0f'],
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process: function (bits){
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return [
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parseInt(bits[1] + bits[1], 16),
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parseInt(bits[2] + bits[2], 16),
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parseInt(bits[3] + bits[3], 16)
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];
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}
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}
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];
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// search through the definitions to find a match
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for (var i = 0; i < color_defs.length; i++) {
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var re = color_defs[i].re;
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var processor = color_defs[i].process;
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var bits = re.exec(color_string);
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if (bits) {
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channels = processor(bits);
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this.r = channels[0];
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this.g = channels[1];
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this.b = channels[2];
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this.ok = true;
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}
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}
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// validate/cleanup values
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this.r = (this.r < 0 || isNaN(this.r)) ? 0 : ((this.r > 255) ? 255 : this.r);
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this.g = (this.g < 0 || isNaN(this.g)) ? 0 : ((this.g > 255) ? 255 : this.g);
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this.b = (this.b < 0 || isNaN(this.b)) ? 0 : ((this.b > 255) ? 255 : this.b);
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// some getters
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this.toRGB = function () {
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return 'rgb(' + this.r + ', ' + this.g + ', ' + this.b + ')';
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}
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this.toHex = function () {
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var r = this.r.toString(16);
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var g = this.g.toString(16);
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var b = this.b.toString(16);
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if (r.length == 1) r = '0' + r;
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if (g.length == 1) g = '0' + g;
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if (b.length == 1) b = '0' + b;
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return '#' + r + g + b;
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}
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// help
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this.getHelpXML = function () {
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var examples = new Array();
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// add regexps
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for (var i = 0; i < color_defs.length; i++) {
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var example = color_defs[i].example;
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for (var j = 0; j < example.length; j++) {
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examples[examples.length] = example[j];
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}
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}
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// add type-in colors
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for (var sc in simple_colors) {
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examples[examples.length] = sc;
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}
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var xml = document.createElement('ul');
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xml.setAttribute('id', 'rgbcolor-examples');
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for (var i = 0; i < examples.length; i++) {
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try {
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var list_item = document.createElement('li');
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var list_color = new RGBColor(examples[i]);
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var example_div = document.createElement('div');
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example_div.style.cssText =
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'margin: 3px; '
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+ 'border: 1px solid black; '
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+ 'background:' + list_color.toHex() + '; '
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+ 'color:' + list_color.toHex()
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;
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example_div.appendChild(document.createTextNode('test'));
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var list_item_value = document.createTextNode(
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' ' + examples[i] + ' -> ' + list_color.toRGB() + ' -> ' + list_color.toHex()
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);
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list_item.appendChild(example_div);
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list_item.appendChild(list_item_value);
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xml.appendChild(list_item);
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} catch(e){}
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}
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return xml;
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}
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}
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/**
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* @license canvg.js - Javascript SVG parser and renderer on Canvas
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* MIT Licensed
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* Gabe Lerner (gabelerner@gmail.com)
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* http://code.google.com/p/canvg/
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*
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* Requires: rgbcolor.js - http://www.phpied.com/rgb-color-parser-in-javascript/
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*
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*/
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if(!window.console) {
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window.console = {};
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window.console.log = function(str) {};
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window.console.dir = function(str) {};
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}
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if(!Array.prototype.indexOf){
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Array.prototype.indexOf = function(obj){
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for(var i=0; i<this.length; i++){
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if(this[i]==obj){
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return i;
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}
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}
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return -1;
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}
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}
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(function(){
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// canvg(target, s)
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// empty parameters: replace all 'svg' elements on page with 'canvas' elements
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// target: canvas element or the id of a canvas element
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// s: svg string, url to svg file, or xml document
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// opts: optional hash of options
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// ignoreMouse: true => ignore mouse events
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// ignoreAnimation: true => ignore animations
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// ignoreDimensions: true => does not try to resize canvas
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// ignoreClear: true => does not clear canvas
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// offsetX: int => draws at a x offset
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// offsetY: int => draws at a y offset
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// scaleWidth: int => scales horizontally to width
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// scaleHeight: int => scales vertically to height
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// renderCallback: function => will call the function after the first render is completed
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// forceRedraw: function => will call the function on every frame, if it returns true, will redraw
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this.canvg = function (target, s, opts) {
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// no parameters
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if (target == null && s == null && opts == null) {
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var svgTags = document.getElementsByTagName('svg');
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for (var i=0; i<svgTags.length; i++) {
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var svgTag = svgTags[i];
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var c = document.createElement('canvas');
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c.width = svgTag.clientWidth;
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c.height = svgTag.clientHeight;
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svgTag.parentNode.insertBefore(c, svgTag);
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svgTag.parentNode.removeChild(svgTag);
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var div = document.createElement('div');
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div.appendChild(svgTag);
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canvg(c, div.innerHTML);
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}
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return;
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}
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opts = opts || {};
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if (typeof target == 'string') {
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target = document.getElementById(target);
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}
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// reuse class per canvas
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var svg;
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if (target.svg == null) {
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svg = build();
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target.svg = svg;
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}
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else {
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svg = target.svg;
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svg.stop();
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}
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svg.opts = opts;
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var ctx = target.getContext('2d');
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if (typeof(s.documentElement) != 'undefined') {
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// load from xml doc
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svg.loadXmlDoc(ctx, s);
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}
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else if (s.substr(0,1) == '<') {
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// load from xml string
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svg.loadXml(ctx, s);
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}
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else {
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// load from url
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svg.load(ctx, s);
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}
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}
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function build() {
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var svg = { };
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svg.FRAMERATE = 30;
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svg.MAX_VIRTUAL_PIXELS = 30000;
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// globals
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svg.init = function(ctx) {
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svg.Definitions = {};
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svg.Styles = {};
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svg.Animations = [];
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svg.Images = [];
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svg.ctx = ctx;
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svg.ViewPort = new (function () {
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this.viewPorts = [];
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this.Clear = function() { this.viewPorts = []; }
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this.SetCurrent = function(width, height) { this.viewPorts.push({ width: width, height: height }); }
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this.RemoveCurrent = function() { this.viewPorts.pop(); }
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this.Current = function() { return this.viewPorts[this.viewPorts.length - 1]; }
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this.width = function() { return this.Current().width; }
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this.height = function() { return this.Current().height; }
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this.ComputeSize = function(d) {
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if (d != null && typeof(d) == 'number') return d;
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if (d == 'x') return this.width();
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if (d == 'y') return this.height();
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return Math.sqrt(Math.pow(this.width(), 2) + Math.pow(this.height(), 2)) / Math.sqrt(2);
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}
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});
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}
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svg.init();
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// images loaded
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svg.ImagesLoaded = function() {
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for (var i=0; i<svg.Images.length; i++) {
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if (!svg.Images[i].loaded) return false;
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}
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return true;
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}
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// trim
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svg.trim = function(s) { return s.replace(/^\s+|\s+$/g, ''); }
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// compress spaces
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svg.compressSpaces = function(s) { return s ? s.replace(/[\s\r\t\n]+/gm,' ') : ''; }
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// ajax
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svg.ajax = function(url) {
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var AJAX;
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if(window.XMLHttpRequest){AJAX=new XMLHttpRequest();}
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else{AJAX=new ActiveXObject('Microsoft.XMLHTTP');}
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if(AJAX){
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AJAX.open('GET',url,false);
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AJAX.send(null);
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return AJAX.responseText;
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}
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return null;
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}
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// parse xml
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svg.parseXml = function(xml) {
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if (window.DOMParser)
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{
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var parser = new DOMParser();
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return parser.parseFromString(xml, 'text/xml');
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}
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else
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{
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xml = xml.replace(/<!DOCTYPE svg[^>]*>/, '');
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var xmlDoc = new ActiveXObject('Microsoft.XMLDOM');
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xmlDoc.async = 'false';
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xmlDoc.loadXML(xml);
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return xmlDoc;
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}
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}
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svg.Property = function(name, value) {
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this.name = name;
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this.value = value;
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this.hasValue = function() {
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return (this.value != null && this.value !== '');
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}
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// return the numerical value of the property
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this.numValue = function() {
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if (!this.hasValue()) return 0;
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var n = parseFloat(this.value);
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if ((this.value + '').match(/%$/)) {
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n = n / 100.0;
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}
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return n;
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}
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this.valueOrDefault = function(def) {
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if (this.hasValue()) return this.value;
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return def;
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}
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this.numValueOrDefault = function(def) {
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if (this.hasValue()) return this.numValue();
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return def;
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}
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/* EXTENSIONS */
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var that = this;
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// color extensions
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this.Color = {
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// augment the current color value with the opacity
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addOpacity: function(opacity) {
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var newValue = that.value;
|
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if (opacity != null && opacity != '') {
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var color = new RGBColor(that.value);
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if (color.ok) {
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newValue = 'rgba(' + color.r + ', ' + color.g + ', ' + color.b + ', ' + opacity + ')';
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}
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}
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return new svg.Property(that.name, newValue);
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}
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}
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// definition extensions
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this.Definition = {
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// get the definition from the definitions table
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getDefinition: function() {
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var name = that.value.replace(/^(url\()?#([^\)]+)\)?$/, '$2');
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return svg.Definitions[name];
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},
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isUrl: function() {
|
|
return that.value.indexOf('url(') == 0
|
|
},
|
|
|
|
getFillStyle: function(e) {
|
|
var def = this.getDefinition();
|
|
|
|
// gradient
|
|
if (def != null && def.createGradient) {
|
|
return def.createGradient(svg.ctx, e);
|
|
}
|
|
|
|
// pattern
|
|
if (def != null && def.createPattern) {
|
|
return def.createPattern(svg.ctx, e);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
}
|
|
|
|
// length extensions
|
|
this.Length = {
|
|
DPI: function(viewPort) {
|
|
return 96.0; // TODO: compute?
|
|
},
|
|
|
|
EM: function(viewPort) {
|
|
var em = 12;
|
|
|
|
var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);
|
|
if (fontSize.hasValue()) em = fontSize.Length.toPixels(viewPort);
|
|
|
|
return em;
|
|
},
|
|
|
|
// get the length as pixels
|
|
toPixels: function(viewPort) {
|
|
if (!that.hasValue()) return 0;
|
|
var s = that.value+'';
|
|
if (s.match(/em$/)) return that.numValue() * this.EM(viewPort);
|
|
if (s.match(/ex$/)) return that.numValue() * this.EM(viewPort) / 2.0;
|
|
if (s.match(/px$/)) return that.numValue();
|
|
if (s.match(/pt$/)) return that.numValue() * 1.25;
|
|
if (s.match(/pc$/)) return that.numValue() * 15;
|
|
if (s.match(/cm$/)) return that.numValue() * this.DPI(viewPort) / 2.54;
|
|
if (s.match(/mm$/)) return that.numValue() * this.DPI(viewPort) / 25.4;
|
|
if (s.match(/in$/)) return that.numValue() * this.DPI(viewPort);
|
|
if (s.match(/%$/)) return that.numValue() * svg.ViewPort.ComputeSize(viewPort);
|
|
return that.numValue();
|
|
}
|
|
}
|
|
|
|
// time extensions
|
|
this.Time = {
|
|
// get the time as milliseconds
|
|
toMilliseconds: function() {
|
|
if (!that.hasValue()) return 0;
|
|
var s = that.value+'';
|
|
if (s.match(/s$/)) return that.numValue() * 1000;
|
|
if (s.match(/ms$/)) return that.numValue();
|
|
return that.numValue();
|
|
}
|
|
}
|
|
|
|
// angle extensions
|
|
this.Angle = {
|
|
// get the angle as radians
|
|
toRadians: function() {
|
|
if (!that.hasValue()) return 0;
|
|
var s = that.value+'';
|
|
if (s.match(/deg$/)) return that.numValue() * (Math.PI / 180.0);
|
|
if (s.match(/grad$/)) return that.numValue() * (Math.PI / 200.0);
|
|
if (s.match(/rad$/)) return that.numValue();
|
|
return that.numValue() * (Math.PI / 180.0);
|
|
}
|
|
}
|
|
}
|
|
|
|
// fonts
|
|
svg.Font = new (function() {
|
|
this.Styles = ['normal','italic','oblique','inherit'];
|
|
this.Variants = ['normal','small-caps','inherit'];
|
|
this.Weights = ['normal','bold','bolder','lighter','100','200','300','400','500','600','700','800','900','inherit'];
|
|
|
|
this.CreateFont = function(fontStyle, fontVariant, fontWeight, fontSize, fontFamily, inherit) {
|
|
var f = inherit != null ? this.Parse(inherit) : this.CreateFont('', '', '', '', '', svg.ctx.font);
|
|
return {
|
|
fontFamily: fontFamily || f.fontFamily,
|
|
fontSize: fontSize || f.fontSize,
|
|
fontStyle: fontStyle || f.fontStyle,
|
|
fontWeight: fontWeight || f.fontWeight,
|
|
fontVariant: fontVariant || f.fontVariant,
|
|
toString: function () { return [this.fontStyle, this.fontVariant, this.fontWeight, this.fontSize, this.fontFamily].join(' ') }
|
|
}
|
|
}
|
|
|
|
var that = this;
|
|
this.Parse = function(s) {
|
|
var f = {};
|
|
var d = svg.trim(svg.compressSpaces(s || '')).split(' ');
|
|
var set = { fontSize: false, fontStyle: false, fontWeight: false, fontVariant: false }
|
|
var ff = '';
|
|
for (var i=0; i<d.length; i++) {
|
|
if (!set.fontStyle && that.Styles.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontStyle = d[i]; set.fontStyle = true; }
|
|
else if (!set.fontVariant && that.Variants.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontVariant = d[i]; set.fontStyle = set.fontVariant = true; }
|
|
else if (!set.fontWeight && that.Weights.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontWeight = d[i]; set.fontStyle = set.fontVariant = set.fontWeight = true; }
|
|
else if (!set.fontSize) { if (d[i] != 'inherit') f.fontSize = d[i].split('/')[0]; set.fontStyle = set.fontVariant = set.fontWeight = set.fontSize = true; }
|
|
else { if (d[i] != 'inherit') ff += d[i]; }
|
|
} if (ff != '') f.fontFamily = ff;
|
|
return f;
|
|
}
|
|
});
|
|
|
|
// points and paths
|
|
svg.ToNumberArray = function(s) {
|
|
var a = svg.trim(svg.compressSpaces((s || '').replace(/,/g, ' '))).split(' ');
|
|
for (var i=0; i<a.length; i++) {
|
|
a[i] = parseFloat(a[i]);
|
|
}
|
|
return a;
|
|
}
|
|
svg.Point = function(x, y) {
|
|
this.x = x;
|
|
this.y = y;
|
|
|
|
this.angleTo = function(p) {
|
|
return Math.atan2(p.y - this.y, p.x - this.x);
|
|
}
|
|
|
|
this.applyTransform = function(v) {
|
|
var xp = this.x * v[0] + this.y * v[2] + v[4];
|
|
var yp = this.x * v[1] + this.y * v[3] + v[5];
|
|
this.x = xp;
|
|
this.y = yp;
|
|
}
|
|
}
|
|
svg.CreatePoint = function(s) {
|
|
var a = svg.ToNumberArray(s);
|
|
return new svg.Point(a[0], a[1]);
|
|
}
|
|
svg.CreatePath = function(s) {
|
|
var a = svg.ToNumberArray(s);
|
|
var path = [];
|
|
for (var i=0; i<a.length; i+=2) {
|
|
path.push(new svg.Point(a[i], a[i+1]));
|
|
}
|
|
return path;
|
|
}
|
|
|
|
// bounding box
|
|
svg.BoundingBox = function(x1, y1, x2, y2) { // pass in initial points if you want
|
|
this.x1 = Number.NaN;
|
|
this.y1 = Number.NaN;
|
|
this.x2 = Number.NaN;
|
|
this.y2 = Number.NaN;
|
|
|
|
this.x = function() { return this.x1; }
|
|
this.y = function() { return this.y1; }
|
|
this.width = function() { return this.x2 - this.x1; }
|
|
this.height = function() { return this.y2 - this.y1; }
|
|
|
|
this.addPoint = function(x, y) {
|
|
if (x != null) {
|
|
if (isNaN(this.x1) || isNaN(this.x2)) {
|
|
this.x1 = x;
|
|
this.x2 = x;
|
|
}
|
|
if (x < this.x1) this.x1 = x;
|
|
if (x > this.x2) this.x2 = x;
|
|
}
|
|
|
|
if (y != null) {
|
|
if (isNaN(this.y1) || isNaN(this.y2)) {
|
|
this.y1 = y;
|
|
this.y2 = y;
|
|
}
|
|
if (y < this.y1) this.y1 = y;
|
|
if (y > this.y2) this.y2 = y;
|
|
}
|
|
}
|
|
this.addX = function(x) { this.addPoint(x, null); }
|
|
this.addY = function(y) { this.addPoint(null, y); }
|
|
|
|
this.addBoundingBox = function(bb) {
|
|
this.addPoint(bb.x1, bb.y1);
|
|
this.addPoint(bb.x2, bb.y2);
|
|
}
|
|
|
|
this.addQuadraticCurve = function(p0x, p0y, p1x, p1y, p2x, p2y) {
|
|
var cp1x = p0x + 2/3 * (p1x - p0x); // CP1 = QP0 + 2/3 *(QP1-QP0)
|
|
var cp1y = p0y + 2/3 * (p1y - p0y); // CP1 = QP0 + 2/3 *(QP1-QP0)
|
|
var cp2x = cp1x + 1/3 * (p2x - p0x); // CP2 = CP1 + 1/3 *(QP2-QP0)
|
|
var cp2y = cp1y + 1/3 * (p2y - p0y); // CP2 = CP1 + 1/3 *(QP2-QP0)
|
|
this.addBezierCurve(p0x, p0y, cp1x, cp2x, cp1y, cp2y, p2x, p2y);
|
|
}
|
|
|
|
this.addBezierCurve = function(p0x, p0y, p1x, p1y, p2x, p2y, p3x, p3y) {
|
|
// from http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html
|
|
var p0 = [p0x, p0y], p1 = [p1x, p1y], p2 = [p2x, p2y], p3 = [p3x, p3y];
|
|
this.addPoint(p0[0], p0[1]);
|
|
this.addPoint(p3[0], p3[1]);
|
|
|
|
for (i=0; i<=1; i++) {
|
|
var f = function(t) {
|
|
return Math.pow(1-t, 3) * p0[i]
|
|
+ 3 * Math.pow(1-t, 2) * t * p1[i]
|
|
+ 3 * (1-t) * Math.pow(t, 2) * p2[i]
|
|
+ Math.pow(t, 3) * p3[i];
|
|
}
|
|
|
|
var b = 6 * p0[i] - 12 * p1[i] + 6 * p2[i];
|
|
var a = -3 * p0[i] + 9 * p1[i] - 9 * p2[i] + 3 * p3[i];
|
|
var c = 3 * p1[i] - 3 * p0[i];
|
|
|
|
if (a == 0) {
|
|
if (b == 0) continue;
|
|
var t = -c / b;
|
|
if (0 < t && t < 1) {
|
|
if (i == 0) this.addX(f(t));
|
|
if (i == 1) this.addY(f(t));
|
|
}
|
|
continue;
|
|
}
|
|
|
|
var b2ac = Math.pow(b, 2) - 4 * c * a;
|
|
if (b2ac < 0) continue;
|
|
var t1 = (-b + Math.sqrt(b2ac)) / (2 * a);
|
|
if (0 < t1 && t1 < 1) {
|
|
if (i == 0) this.addX(f(t1));
|
|
if (i == 1) this.addY(f(t1));
|
|
}
|
|
var t2 = (-b - Math.sqrt(b2ac)) / (2 * a);
|
|
if (0 < t2 && t2 < 1) {
|
|
if (i == 0) this.addX(f(t2));
|
|
if (i == 1) this.addY(f(t2));
|
|
}
|
|
}
|
|
}
|
|
|
|
this.isPointInBox = function(x, y) {
|
|
return (this.x1 <= x && x <= this.x2 && this.y1 <= y && y <= this.y2);
|
|
}
|
|
|
|
this.addPoint(x1, y1);
|
|
this.addPoint(x2, y2);
|
|
}
|
|
|
|
// transforms
|
|
svg.Transform = function(v) {
|
|
var that = this;
|
|
this.Type = {}
|
|
|
|
// translate
|
|
this.Type.translate = function(s) {
|
|
this.p = svg.CreatePoint(s);
|
|
this.apply = function(ctx) {
|
|
ctx.translate(this.p.x || 0.0, this.p.y || 0.0);
|
|
}
|
|
this.applyToPoint = function(p) {
|
|
p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]);
|
|
}
|
|
}
|
|
|
|
// rotate
|
|
this.Type.rotate = function(s) {
|
|
var a = svg.ToNumberArray(s);
|
|
this.angle = new svg.Property('angle', a[0]);
|
|
this.cx = a[1] || 0;
|
|
this.cy = a[2] || 0;
|
|
this.apply = function(ctx) {
|
|
ctx.translate(this.cx, this.cy);
|
|
ctx.rotate(this.angle.Angle.toRadians());
|
|
ctx.translate(-this.cx, -this.cy);
|
|
}
|
|
this.applyToPoint = function(p) {
|
|
var a = this.angle.Angle.toRadians();
|
|
p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]);
|
|
p.applyTransform([Math.cos(a), Math.sin(a), -Math.sin(a), Math.cos(a), 0, 0]);
|
|
p.applyTransform([1, 0, 0, 1, -this.p.x || 0.0, -this.p.y || 0.0]);
|
|
}
|
|
}
|
|
|
|
this.Type.scale = function(s) {
|
|
this.p = svg.CreatePoint(s);
|
|
this.apply = function(ctx) {
|
|
ctx.scale(this.p.x || 1.0, this.p.y || this.p.x || 1.0);
|
|
}
|
|
this.applyToPoint = function(p) {
|
|
p.applyTransform([this.p.x || 0.0, 0, 0, this.p.y || 0.0, 0, 0]);
|
|
}
|
|
}
|
|
|
|
this.Type.matrix = function(s) {
|
|
this.m = svg.ToNumberArray(s);
|
|
this.apply = function(ctx) {
|
|
ctx.transform(this.m[0], this.m[1], this.m[2], this.m[3], this.m[4], this.m[5]);
|
|
}
|
|
this.applyToPoint = function(p) {
|
|
p.applyTransform(this.m);
|
|
}
|
|
}
|
|
|
|
this.Type.SkewBase = function(s) {
|
|
this.base = that.Type.matrix;
|
|
this.base(s);
|
|
this.angle = new svg.Property('angle', s);
|
|
}
|
|
this.Type.SkewBase.prototype = new this.Type.matrix;
|
|
|
|
this.Type.skewX = function(s) {
|
|
this.base = that.Type.SkewBase;
|
|
this.base(s);
|
|
this.m = [1, 0, Math.tan(this.angle.Angle.toRadians()), 1, 0, 0];
|
|
}
|
|
this.Type.skewX.prototype = new this.Type.SkewBase;
|
|
|
|
this.Type.skewY = function(s) {
|
|
this.base = that.Type.SkewBase;
|
|
this.base(s);
|
|
this.m = [1, Math.tan(this.angle.Angle.toRadians()), 0, 1, 0, 0];
|
|
}
|
|
this.Type.skewY.prototype = new this.Type.SkewBase;
|
|
|
|
this.transforms = [];
|
|
|
|
this.apply = function(ctx) {
|
|
for (var i=0; i<this.transforms.length; i++) {
|
|
this.transforms[i].apply(ctx);
|
|
}
|
|
}
|
|
|
|
this.applyToPoint = function(p) {
|
|
for (var i=0; i<this.transforms.length; i++) {
|
|
this.transforms[i].applyToPoint(p);
|
|
}
|
|
}
|
|
|
|
var data = svg.trim(svg.compressSpaces(v)).split(/\s(?=[a-z])/);
|
|
for (var i=0; i<data.length; i++) {
|
|
var type = data[i].split('(')[0];
|
|
var s = data[i].split('(')[1].replace(')','');
|
|
var transform = new this.Type[type](s);
|
|
this.transforms.push(transform);
|
|
}
|
|
}
|
|
|
|
// aspect ratio
|
|
svg.AspectRatio = function(ctx, aspectRatio, width, desiredWidth, height, desiredHeight, minX, minY, refX, refY) {
|
|
// aspect ratio - http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute
|
|
aspectRatio = svg.compressSpaces(aspectRatio);
|
|
aspectRatio = aspectRatio.replace(/^defer\s/,''); // ignore defer
|
|
var align = aspectRatio.split(' ')[0] || 'xMidYMid';
|
|
var meetOrSlice = aspectRatio.split(' ')[1] || 'meet';
|
|
|
|
// calculate scale
|
|
var scaleX = width / desiredWidth;
|
|
var scaleY = height / desiredHeight;
|
|
var scaleMin = Math.min(scaleX, scaleY);
|
|
var scaleMax = Math.max(scaleX, scaleY);
|
|
if (meetOrSlice == 'meet') { desiredWidth *= scaleMin; desiredHeight *= scaleMin; }
|
|
if (meetOrSlice == 'slice') { desiredWidth *= scaleMax; desiredHeight *= scaleMax; }
|
|
|
|
refX = new svg.Property('refX', refX);
|
|
refY = new svg.Property('refY', refY);
|
|
if (refX.hasValue() && refY.hasValue()) {
|
|
ctx.translate(-scaleMin * refX.Length.toPixels('x'), -scaleMin * refY.Length.toPixels('y'));
|
|
}
|
|
else {
|
|
// align
|
|
if (align.match(/^xMid/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) || (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width / 2.0 - desiredWidth / 2.0, 0);
|
|
if (align.match(/YMid$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) || (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height / 2.0 - desiredHeight / 2.0);
|
|
if (align.match(/^xMax/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) || (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width - desiredWidth, 0);
|
|
if (align.match(/YMax$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) || (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height - desiredHeight);
|
|
}
|
|
|
|
// scale
|
|
if (align == 'none') ctx.scale(scaleX, scaleY);
|
|
else if (meetOrSlice == 'meet') ctx.scale(scaleMin, scaleMin);
|
|
else if (meetOrSlice == 'slice') ctx.scale(scaleMax, scaleMax);
|
|
|
|
// translate
|
|
ctx.translate(minX == null ? 0 : -minX, minY == null ? 0 : -minY);
|
|
}
|
|
|
|
// elements
|
|
svg.Element = {}
|
|
|
|
svg.Element.ElementBase = function(node) {
|
|
this.attributes = {};
|
|
this.styles = {};
|
|
this.children = [];
|
|
|
|
// get or create attribute
|
|
this.attribute = function(name, createIfNotExists) {
|
|
var a = this.attributes[name];
|
|
if (a != null) return a;
|
|
|
|
a = new svg.Property(name, '');
|
|
if (createIfNotExists == true) this.attributes[name] = a;
|
|
return a;
|
|
}
|
|
|
|
// get or create style, crawls up node tree
|
|
this.style = function(name, createIfNotExists) {
|
|
var s = this.styles[name];
|
|
if (s != null) return s;
|
|
|
|
var a = this.attribute(name);
|
|
if (a != null && a.hasValue()) {
|
|
return a;
|
|
}
|
|
|
|
var p = this.parent;
|
|
if (p != null) {
|
|
var ps = p.style(name);
|
|
if (ps != null && ps.hasValue()) {
|
|
return ps;
|
|
}
|
|
}
|
|
|
|
s = new svg.Property(name, '');
|
|
if (createIfNotExists == true) this.styles[name] = s;
|
|
return s;
|
|
}
|
|
|
|
// base render
|
|
this.render = function(ctx) {
|
|
// don't render display=none
|
|
if (this.style('display').value == 'none') return;
|
|
|
|
// don't render visibility=hidden
|
|
if (this.attribute('visibility').value == 'hidden') return;
|
|
|
|
ctx.save();
|
|
this.setContext(ctx);
|
|
// mask
|
|
if (this.attribute('mask').hasValue()) {
|
|
var mask = this.attribute('mask').Definition.getDefinition();
|
|
if (mask != null) mask.apply(ctx, this);
|
|
}
|
|
else if (this.style('filter').hasValue()) {
|
|
var filter = this.style('filter').Definition.getDefinition();
|
|
if (filter != null) filter.apply(ctx, this);
|
|
}
|
|
else this.renderChildren(ctx);
|
|
this.clearContext(ctx);
|
|
ctx.restore();
|
|
}
|
|
|
|
// base set context
|
|
this.setContext = function(ctx) {
|
|
// OVERRIDE ME!
|
|
}
|
|
|
|
// base clear context
|
|
this.clearContext = function(ctx) {
|
|
// OVERRIDE ME!
|
|
}
|
|
|
|
// base render children
|
|
this.renderChildren = function(ctx) {
|
|
for (var i=0; i<this.children.length; i++) {
|
|
this.children[i].render(ctx);
|
|
}
|
|
}
|
|
|
|
this.addChild = function(childNode, create) {
|
|
var child = childNode;
|
|
if (create) child = svg.CreateElement(childNode);
|
|
child.parent = this;
|
|
this.children.push(child);
|
|
}
|
|
|
|
if (node != null && node.nodeType == 1) { //ELEMENT_NODE
|
|
// add children
|
|
for (var i=0; i<node.childNodes.length; i++) {
|
|
var childNode = node.childNodes[i];
|
|
if (childNode.nodeType == 1) this.addChild(childNode, true); //ELEMENT_NODE
|
|
}
|
|
|
|
// add attributes
|
|
for (var i=0; i<node.attributes.length; i++) {
|
|
var attribute = node.attributes[i];
|
|
this.attributes[attribute.nodeName] = new svg.Property(attribute.nodeName, attribute.nodeValue);
|
|
}
|
|
|
|
// add tag styles
|
|
var styles = svg.Styles[node.nodeName];
|
|
if (styles != null) {
|
|
for (var name in styles) {
|
|
this.styles[name] = styles[name];
|
|
}
|
|
}
|
|
|
|
// add class styles
|
|
if (this.attribute('class').hasValue()) {
|
|
var classes = svg.compressSpaces(this.attribute('class').value).split(' ');
|
|
for (var j=0; j<classes.length; j++) {
|
|
styles = svg.Styles['.'+classes[j]];
|
|
if (styles != null) {
|
|
for (var name in styles) {
|
|
this.styles[name] = styles[name];
|
|
}
|
|
}
|
|
styles = svg.Styles[node.nodeName+'.'+classes[j]];
|
|
if (styles != null) {
|
|
for (var name in styles) {
|
|
this.styles[name] = styles[name];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// add inline styles
|
|
if (this.attribute('style').hasValue()) {
|
|
var styles = this.attribute('style').value.split(';');
|
|
for (var i=0; i<styles.length; i++) {
|
|
if (svg.trim(styles[i]) != '') {
|
|
var style = styles[i].split(':');
|
|
var name = svg.trim(style[0]);
|
|
var value = svg.trim(style[1]);
|
|
this.styles[name] = new svg.Property(name, value);
|
|
}
|
|
}
|
|
}
|
|
|
|
// add id
|
|
if (this.attribute('id').hasValue()) {
|
|
if (svg.Definitions[this.attribute('id').value] == null) {
|
|
svg.Definitions[this.attribute('id').value] = this;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
svg.Element.RenderedElementBase = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.setContext = function(ctx) {
|
|
// fill
|
|
if (this.style('fill').Definition.isUrl()) {
|
|
var fs = this.style('fill').Definition.getFillStyle(this);
|
|
if (fs != null) ctx.fillStyle = fs;
|
|
}
|
|
else if (this.style('fill').hasValue()) {
|
|
var fillStyle = this.style('fill');
|
|
if (this.style('fill-opacity').hasValue()) fillStyle = fillStyle.Color.addOpacity(this.style('fill-opacity').value);
|
|
ctx.fillStyle = (fillStyle.value == 'none' ? 'rgba(0,0,0,0)' : fillStyle.value);
|
|
}
|
|
|
|
// stroke
|
|
if (this.style('stroke').Definition.isUrl()) {
|
|
var fs = this.style('stroke').Definition.getFillStyle(this);
|
|
if (fs != null) ctx.strokeStyle = fs;
|
|
}
|
|
else if (this.style('stroke').hasValue()) {
|
|
var strokeStyle = this.style('stroke');
|
|
if (this.style('stroke-opacity').hasValue()) strokeStyle = strokeStyle.Color.addOpacity(this.style('stroke-opacity').value);
|
|
ctx.strokeStyle = (strokeStyle.value == 'none' ? 'rgba(0,0,0,0)' : strokeStyle.value);
|
|
}
|
|
if (this.style('stroke-width').hasValue()) ctx.lineWidth = this.style('stroke-width').Length.toPixels();
|
|
if (this.style('stroke-linecap').hasValue()) ctx.lineCap = this.style('stroke-linecap').value;
|
|
if (this.style('stroke-linejoin').hasValue()) ctx.lineJoin = this.style('stroke-linejoin').value;
|
|
if (this.style('stroke-miterlimit').hasValue()) ctx.miterLimit = this.style('stroke-miterlimit').value;
|
|
|
|
// font
|
|
if (typeof(ctx.font) != 'undefined') {
|
|
ctx.font = svg.Font.CreateFont(
|
|
this.style('font-style').value,
|
|
this.style('font-variant').value,
|
|
this.style('font-weight').value,
|
|
this.style('font-size').hasValue() ? this.style('font-size').Length.toPixels() + 'px' : '',
|
|
this.style('font-family').value).toString();
|
|
}
|
|
|
|
// transform
|
|
if (this.attribute('transform').hasValue()) {
|
|
var transform = new svg.Transform(this.attribute('transform').value);
|
|
transform.apply(ctx);
|
|
}
|
|
|
|
// clip
|
|
if (this.attribute('clip-path').hasValue()) {
|
|
var clip = this.attribute('clip-path').Definition.getDefinition();
|
|
if (clip != null) clip.apply(ctx);
|
|
}
|
|
|
|
// opacity
|
|
if (this.style('opacity').hasValue()) {
|
|
ctx.globalAlpha = this.style('opacity').numValue();
|
|
}
|
|
}
|
|
}
|
|
svg.Element.RenderedElementBase.prototype = new svg.Element.ElementBase;
|
|
|
|
svg.Element.PathElementBase = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.path = function(ctx) {
|
|
if (ctx != null) ctx.beginPath();
|
|
return new svg.BoundingBox();
|
|
}
|
|
|
|
this.renderChildren = function(ctx) {
|
|
this.path(ctx);
|
|
svg.Mouse.checkPath(this, ctx);
|
|
if (ctx.fillStyle != '') ctx.fill();
|
|
if (ctx.strokeStyle != '') ctx.stroke();
|
|
|
|
var markers = this.getMarkers();
|
|
if (markers != null) {
|
|
if (this.style('marker-start').Definition.isUrl()) {
|
|
var marker = this.style('marker-start').Definition.getDefinition();
|
|
marker.render(ctx, markers[0][0], markers[0][1]);
|
|
}
|
|
if (this.style('marker-mid').Definition.isUrl()) {
|
|
var marker = this.style('marker-mid').Definition.getDefinition();
|
|
for (var i=1;i<markers.length-1;i++) {
|
|
marker.render(ctx, markers[i][0], markers[i][1]);
|
|
}
|
|
}
|
|
if (this.style('marker-end').Definition.isUrl()) {
|
|
var marker = this.style('marker-end').Definition.getDefinition();
|
|
marker.render(ctx, markers[markers.length-1][0], markers[markers.length-1][1]);
|
|
}
|
|
}
|
|
}
|
|
|
|
this.getBoundingBox = function() {
|
|
return this.path();
|
|
}
|
|
|
|
this.getMarkers = function() {
|
|
return null;
|
|
}
|
|
}
|
|
svg.Element.PathElementBase.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// svg element
|
|
svg.Element.svg = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.baseClearContext = this.clearContext;
|
|
this.clearContext = function(ctx) {
|
|
this.baseClearContext(ctx);
|
|
svg.ViewPort.RemoveCurrent();
|
|
}
|
|
|
|
this.baseSetContext = this.setContext;
|
|
this.setContext = function(ctx) {
|
|
// initial values
|
|
ctx.strokeStyle = 'rgba(0,0,0,0)';
|
|
ctx.lineCap = 'butt';
|
|
ctx.lineJoin = 'miter';
|
|
ctx.miterLimit = 4;
|
|
|
|
this.baseSetContext(ctx);
|
|
|
|
// create new view port
|
|
if (this.attribute('x').hasValue() && this.attribute('y').hasValue()) {
|
|
ctx.translate(this.attribute('x').Length.toPixels('x'), this.attribute('y').Length.toPixels('y'));
|
|
}
|
|
|
|
var width = svg.ViewPort.width();
|
|
var height = svg.ViewPort.height();
|
|
if (typeof(this.root) == 'undefined' && this.attribute('width').hasValue() && this.attribute('height').hasValue()) {
|
|
width = this.attribute('width').Length.toPixels('x');
|
|
height = this.attribute('height').Length.toPixels('y');
|
|
|
|
var x = 0;
|
|
var y = 0;
|
|
if (this.attribute('refX').hasValue() && this.attribute('refY').hasValue()) {
|
|
x = -this.attribute('refX').Length.toPixels('x');
|
|
y = -this.attribute('refY').Length.toPixels('y');
|
|
}
|
|
|
|
ctx.beginPath();
|
|
ctx.moveTo(x, y);
|
|
ctx.lineTo(width, y);
|
|
ctx.lineTo(width, height);
|
|
ctx.lineTo(x, height);
|
|
ctx.closePath();
|
|
ctx.clip();
|
|
}
|
|
svg.ViewPort.SetCurrent(width, height);
|
|
|
|
// viewbox
|
|
if (this.attribute('viewBox').hasValue()) {
|
|
var viewBox = svg.ToNumberArray(this.attribute('viewBox').value);
|
|
var minX = viewBox[0];
|
|
var minY = viewBox[1];
|
|
width = viewBox[2];
|
|
height = viewBox[3];
|
|
|
|
svg.AspectRatio(ctx,
|
|
this.attribute('preserveAspectRatio').value,
|
|
svg.ViewPort.width(),
|
|
width,
|
|
svg.ViewPort.height(),
|
|
height,
|
|
minX,
|
|
minY,
|
|
this.attribute('refX').value,
|
|
this.attribute('refY').value);
|
|
|
|
svg.ViewPort.RemoveCurrent();
|
|
svg.ViewPort.SetCurrent(viewBox[2], viewBox[3]);
|
|
}
|
|
}
|
|
}
|
|
svg.Element.svg.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// rect element
|
|
svg.Element.rect = function(node) {
|
|
this.base = svg.Element.PathElementBase;
|
|
this.base(node);
|
|
|
|
this.path = function(ctx) {
|
|
var x = this.attribute('x').Length.toPixels('x');
|
|
var y = this.attribute('y').Length.toPixels('y');
|
|
var width = this.attribute('width').Length.toPixels('x');
|
|
var height = this.attribute('height').Length.toPixels('y');
|
|
var rx = this.attribute('rx').Length.toPixels('x');
|
|
var ry = this.attribute('ry').Length.toPixels('y');
|
|
if (this.attribute('rx').hasValue() && !this.attribute('ry').hasValue()) ry = rx;
|
|
if (this.attribute('ry').hasValue() && !this.attribute('rx').hasValue()) rx = ry;
|
|
|
|
if (ctx != null) {
|
|
ctx.beginPath();
|
|
ctx.moveTo(x + rx, y);
|
|
ctx.lineTo(x + width - rx, y);
|
|
ctx.quadraticCurveTo(x + width, y, x + width, y + ry)
|
|
ctx.lineTo(x + width, y + height - ry);
|
|
ctx.quadraticCurveTo(x + width, y + height, x + width - rx, y + height)
|
|
ctx.lineTo(x + rx, y + height);
|
|
ctx.quadraticCurveTo(x, y + height, x, y + height - ry)
|
|
ctx.lineTo(x, y + ry);
|
|
ctx.quadraticCurveTo(x, y, x + rx, y)
|
|
ctx.closePath();
|
|
}
|
|
|
|
return new svg.BoundingBox(x, y, x + width, y + height);
|
|
}
|
|
}
|
|
svg.Element.rect.prototype = new svg.Element.PathElementBase;
|
|
|
|
// circle element
|
|
svg.Element.circle = function(node) {
|
|
this.base = svg.Element.PathElementBase;
|
|
this.base(node);
|
|
|
|
this.path = function(ctx) {
|
|
var cx = this.attribute('cx').Length.toPixels('x');
|
|
var cy = this.attribute('cy').Length.toPixels('y');
|
|
var r = this.attribute('r').Length.toPixels();
|
|
|
|
if (ctx != null) {
|
|
ctx.beginPath();
|
|
ctx.arc(cx, cy, r, 0, Math.PI * 2, true);
|
|
ctx.closePath();
|
|
}
|
|
|
|
return new svg.BoundingBox(cx - r, cy - r, cx + r, cy + r);
|
|
}
|
|
}
|
|
svg.Element.circle.prototype = new svg.Element.PathElementBase;
|
|
|
|
// ellipse element
|
|
svg.Element.ellipse = function(node) {
|
|
this.base = svg.Element.PathElementBase;
|
|
this.base(node);
|
|
|
|
this.path = function(ctx) {
|
|
var KAPPA = 4 * ((Math.sqrt(2) - 1) / 3);
|
|
var rx = this.attribute('rx').Length.toPixels('x');
|
|
var ry = this.attribute('ry').Length.toPixels('y');
|
|
var cx = this.attribute('cx').Length.toPixels('x');
|
|
var cy = this.attribute('cy').Length.toPixels('y');
|
|
|
|
if (ctx != null) {
|
|
ctx.beginPath();
|
|
ctx.moveTo(cx, cy - ry);
|
|
ctx.bezierCurveTo(cx + (KAPPA * rx), cy - ry, cx + rx, cy - (KAPPA * ry), cx + rx, cy);
|
|
ctx.bezierCurveTo(cx + rx, cy + (KAPPA * ry), cx + (KAPPA * rx), cy + ry, cx, cy + ry);
|
|
ctx.bezierCurveTo(cx - (KAPPA * rx), cy + ry, cx - rx, cy + (KAPPA * ry), cx - rx, cy);
|
|
ctx.bezierCurveTo(cx - rx, cy - (KAPPA * ry), cx - (KAPPA * rx), cy - ry, cx, cy - ry);
|
|
ctx.closePath();
|
|
}
|
|
|
|
return new svg.BoundingBox(cx - rx, cy - ry, cx + rx, cy + ry);
|
|
}
|
|
}
|
|
svg.Element.ellipse.prototype = new svg.Element.PathElementBase;
|
|
|
|
// line element
|
|
svg.Element.line = function(node) {
|
|
this.base = svg.Element.PathElementBase;
|
|
this.base(node);
|
|
|
|
this.getPoints = function() {
|
|
return [
|
|
new svg.Point(this.attribute('x1').Length.toPixels('x'), this.attribute('y1').Length.toPixels('y')),
|
|
new svg.Point(this.attribute('x2').Length.toPixels('x'), this.attribute('y2').Length.toPixels('y'))];
|
|
}
|
|
|
|
this.path = function(ctx) {
|
|
var points = this.getPoints();
|
|
|
|
if (ctx != null) {
|
|
ctx.beginPath();
|
|
ctx.moveTo(points[0].x, points[0].y);
|
|
ctx.lineTo(points[1].x, points[1].y);
|
|
}
|
|
|
|
return new svg.BoundingBox(points[0].x, points[0].y, points[1].x, points[1].y);
|
|
}
|
|
|
|
this.getMarkers = function() {
|
|
var points = this.getPoints();
|
|
var a = points[0].angleTo(points[1]);
|
|
return [[points[0], a], [points[1], a]];
|
|
}
|
|
}
|
|
svg.Element.line.prototype = new svg.Element.PathElementBase;
|
|
|
|
// polyline element
|
|
svg.Element.polyline = function(node) {
|
|
this.base = svg.Element.PathElementBase;
|
|
this.base(node);
|
|
|
|
this.points = svg.CreatePath(this.attribute('points').value);
|
|
this.path = function(ctx) {
|
|
var bb = new svg.BoundingBox(this.points[0].x, this.points[0].y);
|
|
if (ctx != null) {
|
|
ctx.beginPath();
|
|
ctx.moveTo(this.points[0].x, this.points[0].y);
|
|
}
|
|
for (var i=1; i<this.points.length; i++) {
|
|
bb.addPoint(this.points[i].x, this.points[i].y);
|
|
if (ctx != null) ctx.lineTo(this.points[i].x, this.points[i].y);
|
|
}
|
|
return bb;
|
|
}
|
|
|
|
this.getMarkers = function() {
|
|
var markers = [];
|
|
for (var i=0; i<this.points.length - 1; i++) {
|
|
markers.push([this.points[i], this.points[i].angleTo(this.points[i+1])]);
|
|
}
|
|
markers.push([this.points[this.points.length-1], markers[markers.length-1][1]]);
|
|
return markers;
|
|
}
|
|
}
|
|
svg.Element.polyline.prototype = new svg.Element.PathElementBase;
|
|
|
|
// polygon element
|
|
svg.Element.polygon = function(node) {
|
|
this.base = svg.Element.polyline;
|
|
this.base(node);
|
|
|
|
this.basePath = this.path;
|
|
this.path = function(ctx) {
|
|
var bb = this.basePath(ctx);
|
|
if (ctx != null) {
|
|
ctx.lineTo(this.points[0].x, this.points[0].y);
|
|
ctx.closePath();
|
|
}
|
|
return bb;
|
|
}
|
|
}
|
|
svg.Element.polygon.prototype = new svg.Element.polyline;
|
|
|
|
// path element
|
|
svg.Element.path = function(node) {
|
|
this.base = svg.Element.PathElementBase;
|
|
this.base(node);
|
|
|
|
var d = this.attribute('d').value;
|
|
// TODO: convert to real lexer based on http://www.w3.org/TR/SVG11/paths.html#PathDataBNF
|
|
d = d.replace(/,/gm,' '); // get rid of all commas
|
|
d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // separate commands from commands
|
|
d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // separate commands from commands
|
|
d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([^\s])/gm,'$1 $2'); // separate commands from points
|
|
d = d.replace(/([^\s])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // separate commands from points
|
|
d = d.replace(/([0-9])([+\-])/gm,'$1 $2'); // separate digits when no comma
|
|
d = d.replace(/(\.[0-9]*)(\.)/gm,'$1 $2'); // separate digits when no comma
|
|
d = d.replace(/([Aa](\s+[0-9]+){3})\s+([01])\s*([01])/gm,'$1 $3 $4 '); // shorthand elliptical arc path syntax
|
|
d = svg.compressSpaces(d); // compress multiple spaces
|
|
d = svg.trim(d);
|
|
this.PathParser = new (function(d) {
|
|
this.tokens = d.split(' ');
|
|
|
|
this.reset = function() {
|
|
this.i = -1;
|
|
this.command = '';
|
|
this.previousCommand = '';
|
|
this.start = new svg.Point(0, 0);
|
|
this.control = new svg.Point(0, 0);
|
|
this.current = new svg.Point(0, 0);
|
|
this.points = [];
|
|
this.angles = [];
|
|
}
|
|
|
|
this.isEnd = function() {
|
|
return this.i >= this.tokens.length - 1;
|
|
}
|
|
|
|
this.isCommandOrEnd = function() {
|
|
if (this.isEnd()) return true;
|
|
return this.tokens[this.i + 1].match(/^[A-Za-z]$/) != null;
|
|
}
|
|
|
|
this.isRelativeCommand = function() {
|
|
return this.command == this.command.toLowerCase();
|
|
}
|
|
|
|
this.getToken = function() {
|
|
this.i = this.i + 1;
|
|
return this.tokens[this.i];
|
|
}
|
|
|
|
this.getScalar = function() {
|
|
return parseFloat(this.getToken());
|
|
}
|
|
|
|
this.nextCommand = function() {
|
|
this.previousCommand = this.command;
|
|
this.command = this.getToken();
|
|
}
|
|
|
|
this.getPoint = function() {
|
|
var p = new svg.Point(this.getScalar(), this.getScalar());
|
|
return this.makeAbsolute(p);
|
|
}
|
|
|
|
this.getAsControlPoint = function() {
|
|
var p = this.getPoint();
|
|
this.control = p;
|
|
return p;
|
|
}
|
|
|
|
this.getAsCurrentPoint = function() {
|
|
var p = this.getPoint();
|
|
this.current = p;
|
|
return p;
|
|
}
|
|
|
|
this.getReflectedControlPoint = function() {
|
|
if (this.previousCommand.toLowerCase() != 'c' && this.previousCommand.toLowerCase() != 's') {
|
|
return this.current;
|
|
}
|
|
|
|
// reflect point
|
|
var p = new svg.Point(2 * this.current.x - this.control.x, 2 * this.current.y - this.control.y);
|
|
return p;
|
|
}
|
|
|
|
this.makeAbsolute = function(p) {
|
|
if (this.isRelativeCommand()) {
|
|
p.x = this.current.x + p.x;
|
|
p.y = this.current.y + p.y;
|
|
}
|
|
return p;
|
|
}
|
|
|
|
this.addMarker = function(p, from, priorTo) {
|
|
// if the last angle isn't filled in because we didn't have this point yet ...
|
|
if (priorTo != null && this.angles.length > 0 && this.angles[this.angles.length-1] == null) {
|
|
this.angles[this.angles.length-1] = this.points[this.points.length-1].angleTo(priorTo);
|
|
}
|
|
this.addMarkerAngle(p, from == null ? null : from.angleTo(p));
|
|
}
|
|
|
|
this.addMarkerAngle = function(p, a) {
|
|
this.points.push(p);
|
|
this.angles.push(a);
|
|
}
|
|
|
|
this.getMarkerPoints = function() { return this.points; }
|
|
this.getMarkerAngles = function() {
|
|
for (var i=0; i<this.angles.length; i++) {
|
|
if (this.angles[i] == null) {
|
|
for (var j=i+1; j<this.angles.length; j++) {
|
|
if (this.angles[j] != null) {
|
|
this.angles[i] = this.angles[j];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return this.angles;
|
|
}
|
|
})(d);
|
|
|
|
this.path = function(ctx) {
|
|
var pp = this.PathParser;
|
|
pp.reset();
|
|
|
|
var bb = new svg.BoundingBox();
|
|
if (ctx != null) ctx.beginPath();
|
|
while (!pp.isEnd()) {
|
|
pp.nextCommand();
|
|
switch (pp.command.toUpperCase()) {
|
|
case 'M':
|
|
var p = pp.getAsCurrentPoint();
|
|
pp.addMarker(p);
|
|
bb.addPoint(p.x, p.y);
|
|
if (ctx != null) ctx.moveTo(p.x, p.y);
|
|
pp.start = pp.current;
|
|
while (!pp.isCommandOrEnd()) {
|
|
var p = pp.getAsCurrentPoint();
|
|
pp.addMarker(p, pp.start);
|
|
bb.addPoint(p.x, p.y);
|
|
if (ctx != null) ctx.lineTo(p.x, p.y);
|
|
}
|
|
break;
|
|
case 'L':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var c = pp.current;
|
|
var p = pp.getAsCurrentPoint();
|
|
pp.addMarker(p, c);
|
|
bb.addPoint(p.x, p.y);
|
|
if (ctx != null) ctx.lineTo(p.x, p.y);
|
|
}
|
|
break;
|
|
case 'H':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var newP = new svg.Point((pp.isRelativeCommand() ? pp.current.x : 0) + pp.getScalar(), pp.current.y);
|
|
pp.addMarker(newP, pp.current);
|
|
pp.current = newP;
|
|
bb.addPoint(pp.current.x, pp.current.y);
|
|
if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y);
|
|
}
|
|
break;
|
|
case 'V':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var newP = new svg.Point(pp.current.x, (pp.isRelativeCommand() ? pp.current.y : 0) + pp.getScalar());
|
|
pp.addMarker(newP, pp.current);
|
|
pp.current = newP;
|
|
bb.addPoint(pp.current.x, pp.current.y);
|
|
if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y);
|
|
}
|
|
break;
|
|
case 'C':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var curr = pp.current;
|
|
var p1 = pp.getPoint();
|
|
var cntrl = pp.getAsControlPoint();
|
|
var cp = pp.getAsCurrentPoint();
|
|
pp.addMarker(cp, cntrl, p1);
|
|
bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
|
|
if (ctx != null) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
|
|
}
|
|
break;
|
|
case 'S':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var curr = pp.current;
|
|
var p1 = pp.getReflectedControlPoint();
|
|
var cntrl = pp.getAsControlPoint();
|
|
var cp = pp.getAsCurrentPoint();
|
|
pp.addMarker(cp, cntrl, p1);
|
|
bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
|
|
if (ctx != null) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
|
|
}
|
|
break;
|
|
case 'Q':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var curr = pp.current;
|
|
var cntrl = pp.getAsControlPoint();
|
|
var cp = pp.getAsCurrentPoint();
|
|
pp.addMarker(cp, cntrl, cntrl);
|
|
bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y);
|
|
if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y);
|
|
}
|
|
break;
|
|
case 'T':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var curr = pp.current;
|
|
var cntrl = pp.getReflectedControlPoint();
|
|
pp.control = cntrl;
|
|
var cp = pp.getAsCurrentPoint();
|
|
pp.addMarker(cp, cntrl, cntrl);
|
|
bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y);
|
|
if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y);
|
|
}
|
|
break;
|
|
case 'A':
|
|
while (!pp.isCommandOrEnd()) {
|
|
var curr = pp.current;
|
|
var rx = pp.getScalar();
|
|
var ry = pp.getScalar();
|
|
var xAxisRotation = pp.getScalar() * (Math.PI / 180.0);
|
|
var largeArcFlag = pp.getScalar();
|
|
var sweepFlag = pp.getScalar();
|
|
var cp = pp.getAsCurrentPoint();
|
|
|
|
// Conversion from endpoint to center parameterization
|
|
// http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes
|
|
// x1', y1'
|
|
var currp = new svg.Point(
|
|
Math.cos(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.sin(xAxisRotation) * (curr.y - cp.y) / 2.0,
|
|
-Math.sin(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.cos(xAxisRotation) * (curr.y - cp.y) / 2.0
|
|
);
|
|
// adjust radii
|
|
var l = Math.pow(currp.x,2)/Math.pow(rx,2)+Math.pow(currp.y,2)/Math.pow(ry,2);
|
|
if (l > 1) {
|
|
rx *= Math.sqrt(l);
|
|
ry *= Math.sqrt(l);
|
|
}
|
|
// cx', cy'
|
|
var s = (largeArcFlag == sweepFlag ? -1 : 1) * Math.sqrt(
|
|
((Math.pow(rx,2)*Math.pow(ry,2))-(Math.pow(rx,2)*Math.pow(currp.y,2))-(Math.pow(ry,2)*Math.pow(currp.x,2))) /
|
|
(Math.pow(rx,2)*Math.pow(currp.y,2)+Math.pow(ry,2)*Math.pow(currp.x,2))
|
|
);
|
|
if (isNaN(s)) s = 0;
|
|
var cpp = new svg.Point(s * rx * currp.y / ry, s * -ry * currp.x / rx);
|
|
// cx, cy
|
|
var centp = new svg.Point(
|
|
(curr.x + cp.x) / 2.0 + Math.cos(xAxisRotation) * cpp.x - Math.sin(xAxisRotation) * cpp.y,
|
|
(curr.y + cp.y) / 2.0 + Math.sin(xAxisRotation) * cpp.x + Math.cos(xAxisRotation) * cpp.y
|
|
);
|
|
// vector magnitude
|
|
var m = function(v) { return Math.sqrt(Math.pow(v[0],2) + Math.pow(v[1],2)); }
|
|
// ratio between two vectors
|
|
var r = function(u, v) { return (u[0]*v[0]+u[1]*v[1]) / (m(u)*m(v)) }
|
|
// angle between two vectors
|
|
var a = function(u, v) { return (u[0]*v[1] < u[1]*v[0] ? -1 : 1) * Math.acos(r(u,v)); }
|
|
// initial angle
|
|
var a1 = a([1,0], [(currp.x-cpp.x)/rx,(currp.y-cpp.y)/ry]);
|
|
// angle delta
|
|
var u = [(currp.x-cpp.x)/rx,(currp.y-cpp.y)/ry];
|
|
var v = [(-currp.x-cpp.x)/rx,(-currp.y-cpp.y)/ry];
|
|
var ad = a(u, v);
|
|
if (r(u,v) <= -1) ad = Math.PI;
|
|
if (r(u,v) >= 1) ad = 0;
|
|
|
|
if (sweepFlag == 0 && ad > 0) ad = ad - 2 * Math.PI;
|
|
if (sweepFlag == 1 && ad < 0) ad = ad + 2 * Math.PI;
|
|
|
|
// for markers
|
|
var halfWay = new svg.Point(
|
|
centp.x - rx * Math.cos((a1 + ad) / 2),
|
|
centp.y - ry * Math.sin((a1 + ad) / 2)
|
|
);
|
|
pp.addMarkerAngle(halfWay, (a1 + ad) / 2 + (sweepFlag == 0 ? 1 : -1) * Math.PI / 2);
|
|
pp.addMarkerAngle(cp, ad + (sweepFlag == 0 ? 1 : -1) * Math.PI / 2);
|
|
|
|
bb.addPoint(cp.x, cp.y); // TODO: this is too naive, make it better
|
|
if (ctx != null) {
|
|
var r = rx > ry ? rx : ry;
|
|
var sx = rx > ry ? 1 : rx / ry;
|
|
var sy = rx > ry ? ry / rx : 1;
|
|
|
|
ctx.translate(centp.x, centp.y);
|
|
ctx.rotate(xAxisRotation);
|
|
ctx.scale(sx, sy);
|
|
ctx.arc(0, 0, r, a1, a1 + ad, 1 - sweepFlag);
|
|
ctx.scale(1/sx, 1/sy);
|
|
ctx.rotate(-xAxisRotation);
|
|
ctx.translate(-centp.x, -centp.y);
|
|
}
|
|
}
|
|
break;
|
|
case 'Z':
|
|
if (ctx != null) ctx.closePath();
|
|
pp.current = pp.start;
|
|
}
|
|
}
|
|
|
|
return bb;
|
|
}
|
|
|
|
this.getMarkers = function() {
|
|
var points = this.PathParser.getMarkerPoints();
|
|
var angles = this.PathParser.getMarkerAngles();
|
|
|
|
var markers = [];
|
|
for (var i=0; i<points.length; i++) {
|
|
markers.push([points[i], angles[i]]);
|
|
}
|
|
return markers;
|
|
}
|
|
}
|
|
svg.Element.path.prototype = new svg.Element.PathElementBase;
|
|
|
|
// pattern element
|
|
svg.Element.pattern = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.createPattern = function(ctx, element) {
|
|
// render me using a temporary svg element
|
|
var tempSvg = new svg.Element.svg();
|
|
tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value);
|
|
tempSvg.attributes['x'] = new svg.Property('x', this.attribute('x').value);
|
|
tempSvg.attributes['y'] = new svg.Property('y', this.attribute('y').value);
|
|
tempSvg.attributes['width'] = new svg.Property('width', this.attribute('width').value);
|
|
tempSvg.attributes['height'] = new svg.Property('height', this.attribute('height').value);
|
|
tempSvg.children = this.children;
|
|
|
|
var c = document.createElement('canvas');
|
|
c.width = this.attribute('width').Length.toPixels('x');
|
|
c.height = this.attribute('height').Length.toPixels('y');
|
|
tempSvg.render(c.getContext('2d'));
|
|
return ctx.createPattern(c, 'repeat');
|
|
}
|
|
}
|
|
svg.Element.pattern.prototype = new svg.Element.ElementBase;
|
|
|
|
// marker element
|
|
svg.Element.marker = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.baseRender = this.render;
|
|
this.render = function(ctx, point, angle) {
|
|
ctx.translate(point.x, point.y);
|
|
if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(angle);
|
|
if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(ctx.lineWidth, ctx.lineWidth);
|
|
ctx.save();
|
|
|
|
// render me using a temporary svg element
|
|
var tempSvg = new svg.Element.svg();
|
|
tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value);
|
|
tempSvg.attributes['refX'] = new svg.Property('refX', this.attribute('refX').value);
|
|
tempSvg.attributes['refY'] = new svg.Property('refY', this.attribute('refY').value);
|
|
tempSvg.attributes['width'] = new svg.Property('width', this.attribute('markerWidth').value);
|
|
tempSvg.attributes['height'] = new svg.Property('height', this.attribute('markerHeight').value);
|
|
tempSvg.attributes['fill'] = new svg.Property('fill', this.attribute('fill').valueOrDefault('black'));
|
|
tempSvg.attributes['stroke'] = new svg.Property('stroke', this.attribute('stroke').valueOrDefault('none'));
|
|
tempSvg.children = this.children;
|
|
tempSvg.render(ctx);
|
|
|
|
ctx.restore();
|
|
if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(1/ctx.lineWidth, 1/ctx.lineWidth);
|
|
if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(-angle);
|
|
ctx.translate(-point.x, -point.y);
|
|
}
|
|
}
|
|
svg.Element.marker.prototype = new svg.Element.ElementBase;
|
|
|
|
// definitions element
|
|
svg.Element.defs = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.render = function(ctx) {
|
|
// NOOP
|
|
}
|
|
}
|
|
svg.Element.defs.prototype = new svg.Element.ElementBase;
|
|
|
|
// base for gradients
|
|
svg.Element.GradientBase = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.gradientUnits = this.attribute('gradientUnits').valueOrDefault('objectBoundingBox');
|
|
|
|
this.stops = [];
|
|
for (var i=0; i<this.children.length; i++) {
|
|
var child = this.children[i];
|
|
this.stops.push(child);
|
|
}
|
|
|
|
this.getGradient = function() {
|
|
// OVERRIDE ME!
|
|
}
|
|
|
|
this.createGradient = function(ctx, element) {
|
|
var stopsContainer = this;
|
|
if (this.attribute('xlink:href').hasValue()) {
|
|
stopsContainer = this.attribute('xlink:href').Definition.getDefinition();
|
|
}
|
|
|
|
var g = this.getGradient(ctx, element);
|
|
for (var i=0; i<stopsContainer.stops.length; i++) {
|
|
g.addColorStop(stopsContainer.stops[i].offset, stopsContainer.stops[i].color);
|
|
}
|
|
|
|
if (this.attribute('gradientTransform').hasValue()) {
|
|
// render as transformed pattern on temporary canvas
|
|
var rootView = svg.ViewPort.viewPorts[0];
|
|
|
|
var rect = new svg.Element.rect();
|
|
rect.attributes['x'] = new svg.Property('x', -svg.MAX_VIRTUAL_PIXELS/3.0);
|
|
rect.attributes['y'] = new svg.Property('y', -svg.MAX_VIRTUAL_PIXELS/3.0);
|
|
rect.attributes['width'] = new svg.Property('width', svg.MAX_VIRTUAL_PIXELS);
|
|
rect.attributes['height'] = new svg.Property('height', svg.MAX_VIRTUAL_PIXELS);
|
|
|
|
var group = new svg.Element.g();
|
|
group.attributes['transform'] = new svg.Property('transform', this.attribute('gradientTransform').value);
|
|
group.children = [ rect ];
|
|
|
|
var tempSvg = new svg.Element.svg();
|
|
tempSvg.attributes['x'] = new svg.Property('x', 0);
|
|
tempSvg.attributes['y'] = new svg.Property('y', 0);
|
|
tempSvg.attributes['width'] = new svg.Property('width', rootView.width);
|
|
tempSvg.attributes['height'] = new svg.Property('height', rootView.height);
|
|
tempSvg.children = [ group ];
|
|
|
|
var c = document.createElement('canvas');
|
|
c.width = rootView.width;
|
|
c.height = rootView.height;
|
|
var tempCtx = c.getContext('2d');
|
|
tempCtx.fillStyle = g;
|
|
tempSvg.render(tempCtx);
|
|
return tempCtx.createPattern(c, 'no-repeat');
|
|
}
|
|
|
|
return g;
|
|
}
|
|
}
|
|
svg.Element.GradientBase.prototype = new svg.Element.ElementBase;
|
|
|
|
// linear gradient element
|
|
svg.Element.linearGradient = function(node) {
|
|
this.base = svg.Element.GradientBase;
|
|
this.base(node);
|
|
|
|
this.getGradient = function(ctx, element) {
|
|
var bb = element.getBoundingBox();
|
|
|
|
var x1 = (this.gradientUnits == 'objectBoundingBox'
|
|
? bb.x() + bb.width() * this.attribute('x1').numValue()
|
|
: this.attribute('x1').Length.toPixels('x'));
|
|
var y1 = (this.gradientUnits == 'objectBoundingBox'
|
|
? bb.y() + bb.height() * this.attribute('y1').numValue()
|
|
: this.attribute('y1').Length.toPixels('y'));
|
|
var x2 = (this.gradientUnits == 'objectBoundingBox'
|
|
? bb.x() + bb.width() * this.attribute('x2').numValue()
|
|
: this.attribute('x2').Length.toPixels('x'));
|
|
var y2 = (this.gradientUnits == 'objectBoundingBox'
|
|
? bb.y() + bb.height() * this.attribute('y2').numValue()
|
|
: this.attribute('y2').Length.toPixels('y'));
|
|
|
|
return ctx.createLinearGradient(x1, y1, x2, y2);
|
|
}
|
|
}
|
|
svg.Element.linearGradient.prototype = new svg.Element.GradientBase;
|
|
|
|
// radial gradient element
|
|
svg.Element.radialGradient = function(node) {
|
|
this.base = svg.Element.GradientBase;
|
|
this.base(node);
|
|
|
|
this.getGradient = function(ctx, element) {
|
|
var bb = element.getBoundingBox();
|
|
|
|
var cx = (this.gradientUnits == 'objectBoundingBox'
|
|
? bb.x() + bb.width() * this.attribute('cx').numValue()
|
|
: this.attribute('cx').Length.toPixels('x'));
|
|
var cy = (this.gradientUnits == 'objectBoundingBox'
|
|
? bb.y() + bb.height() * this.attribute('cy').numValue()
|
|
: this.attribute('cy').Length.toPixels('y'));
|
|
|
|
var fx = cx;
|
|
var fy = cy;
|
|
if (this.attribute('fx').hasValue()) {
|
|
fx = (this.gradientUnits == 'objectBoundingBox'
|
|
? bb.x() + bb.width() * this.attribute('fx').numValue()
|
|
: this.attribute('fx').Length.toPixels('x'));
|
|
}
|
|
if (this.attribute('fy').hasValue()) {
|
|
fy = (this.gradientUnits == 'objectBoundingBox'
|
|
? bb.y() + bb.height() * this.attribute('fy').numValue()
|
|
: this.attribute('fy').Length.toPixels('y'));
|
|
}
|
|
|
|
var r = (this.gradientUnits == 'objectBoundingBox'
|
|
? (bb.width() + bb.height()) / 2.0 * this.attribute('r').numValue()
|
|
: this.attribute('r').Length.toPixels());
|
|
|
|
return ctx.createRadialGradient(fx, fy, 0, cx, cy, r);
|
|
}
|
|
}
|
|
svg.Element.radialGradient.prototype = new svg.Element.GradientBase;
|
|
|
|
// gradient stop element
|
|
svg.Element.stop = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.offset = this.attribute('offset').numValue();
|
|
|
|
var stopColor = this.style('stop-color');
|
|
if (this.style('stop-opacity').hasValue()) stopColor = stopColor.Color.addOpacity(this.style('stop-opacity').value);
|
|
this.color = stopColor.value;
|
|
}
|
|
svg.Element.stop.prototype = new svg.Element.ElementBase;
|
|
|
|
// animation base element
|
|
svg.Element.AnimateBase = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
svg.Animations.push(this);
|
|
|
|
this.duration = 0.0;
|
|
this.begin = this.attribute('begin').Time.toMilliseconds();
|
|
this.maxDuration = this.begin + this.attribute('dur').Time.toMilliseconds();
|
|
|
|
this.getProperty = function() {
|
|
var attributeType = this.attribute('attributeType').value;
|
|
var attributeName = this.attribute('attributeName').value;
|
|
|
|
if (attributeType == 'CSS') {
|
|
return this.parent.style(attributeName, true);
|
|
}
|
|
return this.parent.attribute(attributeName, true);
|
|
};
|
|
|
|
this.initialValue = null;
|
|
this.removed = false;
|
|
|
|
this.calcValue = function() {
|
|
// OVERRIDE ME!
|
|
return '';
|
|
}
|
|
|
|
this.update = function(delta) {
|
|
// set initial value
|
|
if (this.initialValue == null) {
|
|
this.initialValue = this.getProperty().value;
|
|
}
|
|
|
|
// if we're past the end time
|
|
if (this.duration > this.maxDuration) {
|
|
// loop for indefinitely repeating animations
|
|
if (this.attribute('repeatCount').value == 'indefinite') {
|
|
this.duration = 0.0
|
|
}
|
|
else if (this.attribute('fill').valueOrDefault('remove') == 'remove' && !this.removed) {
|
|
this.removed = true;
|
|
this.getProperty().value = this.initialValue;
|
|
return true;
|
|
}
|
|
else {
|
|
return false; // no updates made
|
|
}
|
|
}
|
|
this.duration = this.duration + delta;
|
|
|
|
// if we're past the begin time
|
|
var updated = false;
|
|
if (this.begin < this.duration) {
|
|
var newValue = this.calcValue(); // tween
|
|
|
|
if (this.attribute('type').hasValue()) {
|
|
// for transform, etc.
|
|
var type = this.attribute('type').value;
|
|
newValue = type + '(' + newValue + ')';
|
|
}
|
|
|
|
this.getProperty().value = newValue;
|
|
updated = true;
|
|
}
|
|
|
|
return updated;
|
|
}
|
|
|
|
// fraction of duration we've covered
|
|
this.progress = function() {
|
|
return ((this.duration - this.begin) / (this.maxDuration - this.begin));
|
|
}
|
|
}
|
|
svg.Element.AnimateBase.prototype = new svg.Element.ElementBase;
|
|
|
|
// animate element
|
|
svg.Element.animate = function(node) {
|
|
this.base = svg.Element.AnimateBase;
|
|
this.base(node);
|
|
|
|
this.calcValue = function() {
|
|
var from = this.attribute('from').numValue();
|
|
var to = this.attribute('to').numValue();
|
|
|
|
// tween value linearly
|
|
return from + (to - from) * this.progress();
|
|
};
|
|
}
|
|
svg.Element.animate.prototype = new svg.Element.AnimateBase;
|
|
|
|
// animate color element
|
|
svg.Element.animateColor = function(node) {
|
|
this.base = svg.Element.AnimateBase;
|
|
this.base(node);
|
|
|
|
this.calcValue = function() {
|
|
var from = new RGBColor(this.attribute('from').value);
|
|
var to = new RGBColor(this.attribute('to').value);
|
|
|
|
if (from.ok && to.ok) {
|
|
// tween color linearly
|
|
var r = from.r + (to.r - from.r) * this.progress();
|
|
var g = from.g + (to.g - from.g) * this.progress();
|
|
var b = from.b + (to.b - from.b) * this.progress();
|
|
return 'rgb('+parseInt(r,10)+','+parseInt(g,10)+','+parseInt(b,10)+')';
|
|
}
|
|
return this.attribute('from').value;
|
|
};
|
|
}
|
|
svg.Element.animateColor.prototype = new svg.Element.AnimateBase;
|
|
|
|
// animate transform element
|
|
svg.Element.animateTransform = function(node) {
|
|
this.base = svg.Element.animate;
|
|
this.base(node);
|
|
}
|
|
svg.Element.animateTransform.prototype = new svg.Element.animate;
|
|
|
|
// font element
|
|
svg.Element.font = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.horizAdvX = this.attribute('horiz-adv-x').numValue();
|
|
|
|
this.isRTL = false;
|
|
this.isArabic = false;
|
|
this.fontFace = null;
|
|
this.missingGlyph = null;
|
|
this.glyphs = [];
|
|
for (var i=0; i<this.children.length; i++) {
|
|
var child = this.children[i];
|
|
if (child.type == 'font-face') {
|
|
this.fontFace = child;
|
|
if (child.style('font-family').hasValue()) {
|
|
svg.Definitions[child.style('font-family').value] = this;
|
|
}
|
|
}
|
|
else if (child.type == 'missing-glyph') this.missingGlyph = child;
|
|
else if (child.type == 'glyph') {
|
|
if (child.arabicForm != '') {
|
|
this.isRTL = true;
|
|
this.isArabic = true;
|
|
if (typeof(this.glyphs[child.unicode]) == 'undefined') this.glyphs[child.unicode] = [];
|
|
this.glyphs[child.unicode][child.arabicForm] = child;
|
|
}
|
|
else {
|
|
this.glyphs[child.unicode] = child;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
svg.Element.font.prototype = new svg.Element.ElementBase;
|
|
|
|
// font-face element
|
|
svg.Element.fontface = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.ascent = this.attribute('ascent').value;
|
|
this.descent = this.attribute('descent').value;
|
|
this.unitsPerEm = this.attribute('units-per-em').numValue();
|
|
}
|
|
svg.Element.fontface.prototype = new svg.Element.ElementBase;
|
|
|
|
// missing-glyph element
|
|
svg.Element.missingglyph = function(node) {
|
|
this.base = svg.Element.path;
|
|
this.base(node);
|
|
|
|
this.horizAdvX = 0;
|
|
}
|
|
svg.Element.missingglyph.prototype = new svg.Element.path;
|
|
|
|
// glyph element
|
|
svg.Element.glyph = function(node) {
|
|
this.base = svg.Element.path;
|
|
this.base(node);
|
|
|
|
this.horizAdvX = this.attribute('horiz-adv-x').numValue();
|
|
this.unicode = this.attribute('unicode').value;
|
|
this.arabicForm = this.attribute('arabic-form').value;
|
|
}
|
|
svg.Element.glyph.prototype = new svg.Element.path;
|
|
|
|
// text element
|
|
svg.Element.text = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
if (node != null) {
|
|
// add children
|
|
this.children = [];
|
|
for (var i=0; i<node.childNodes.length; i++) {
|
|
var childNode = node.childNodes[i];
|
|
if (childNode.nodeType == 1) { // capture tspan and tref nodes
|
|
this.addChild(childNode, true);
|
|
}
|
|
else if (childNode.nodeType == 3) { // capture text
|
|
this.addChild(new svg.Element.tspan(childNode), false);
|
|
}
|
|
}
|
|
}
|
|
|
|
this.baseSetContext = this.setContext;
|
|
this.setContext = function(ctx) {
|
|
this.baseSetContext(ctx);
|
|
if (this.style('dominant-baseline').hasValue()) ctx.textBaseline = this.style('dominant-baseline').value;
|
|
if (this.style('alignment-baseline').hasValue()) ctx.textBaseline = this.style('alignment-baseline').value;
|
|
}
|
|
|
|
this.renderChildren = function(ctx) {
|
|
var textAnchor = this.style('text-anchor').valueOrDefault('start');
|
|
var x = this.attribute('x').Length.toPixels('x');
|
|
var y = this.attribute('y').Length.toPixels('y');
|
|
for (var i=0; i<this.children.length; i++) {
|
|
var child = this.children[i];
|
|
|
|
if (child.attribute('x').hasValue()) {
|
|
child.x = child.attribute('x').Length.toPixels('x');
|
|
}
|
|
else {
|
|
if (child.attribute('dx').hasValue()) x += child.attribute('dx').Length.toPixels('x');
|
|
child.x = x;
|
|
}
|
|
|
|
var childLength = child.measureText ? child.measureText(ctx) : 0;
|
|
if (textAnchor != 'start' && (i==0 || child.attribute('x').hasValue())) { // new group?
|
|
// loop through rest of children
|
|
var groupLength = childLength;
|
|
for (var j=i+1; j<this.children.length; j++) {
|
|
var childInGroup = this.children[j];
|
|
if (childInGroup.attribute('x').hasValue()) break; // new group
|
|
groupLength += childInGroup.measureText ? childInGroup.measureText(ctx) : 0;
|
|
}
|
|
child.x -= (textAnchor == 'end' ? groupLength : groupLength / 2.0);
|
|
}
|
|
x = child.x + childLength;
|
|
|
|
if (child.attribute('y').hasValue()) {
|
|
child.y = child.attribute('y').Length.toPixels('y');
|
|
}
|
|
else {
|
|
if (child.attribute('dy').hasValue()) y += child.attribute('dy').Length.toPixels('y');
|
|
child.y = y;
|
|
}
|
|
y = child.y;
|
|
|
|
child.render(ctx);
|
|
}
|
|
}
|
|
}
|
|
svg.Element.text.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// text base
|
|
svg.Element.TextElementBase = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.getGlyph = function(font, text, i) {
|
|
var c = text[i];
|
|
var glyph = null;
|
|
if (font.isArabic) {
|
|
var arabicForm = 'isolated';
|
|
if ((i==0 || text[i-1]==' ') && i<text.length-2 && text[i+1]!=' ') arabicForm = 'terminal';
|
|
if (i>0 && text[i-1]!=' ' && i<text.length-2 && text[i+1]!=' ') arabicForm = 'medial';
|
|
if (i>0 && text[i-1]!=' ' && (i == text.length-1 || text[i+1]==' ')) arabicForm = 'initial';
|
|
if (typeof(font.glyphs[c]) != 'undefined') {
|
|
glyph = font.glyphs[c][arabicForm];
|
|
if (glyph == null && font.glyphs[c].type == 'glyph') glyph = font.glyphs[c];
|
|
}
|
|
}
|
|
else {
|
|
glyph = font.glyphs[c];
|
|
}
|
|
if (glyph == null) glyph = font.missingGlyph;
|
|
return glyph;
|
|
}
|
|
|
|
this.renderChildren = function(ctx) {
|
|
var customFont = this.parent.style('font-family').Definition.getDefinition();
|
|
if (customFont != null) {
|
|
var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
|
|
var fontStyle = this.parent.style('font-style').valueOrDefault(svg.Font.Parse(svg.ctx.font).fontStyle);
|
|
var text = this.getText();
|
|
if (customFont.isRTL) text = text.split("").reverse().join("");
|
|
|
|
var dx = svg.ToNumberArray(this.parent.attribute('dx').value);
|
|
for (var i=0; i<text.length; i++) {
|
|
var glyph = this.getGlyph(customFont, text, i);
|
|
var scale = fontSize / customFont.fontFace.unitsPerEm;
|
|
ctx.translate(this.x, this.y);
|
|
ctx.scale(scale, -scale);
|
|
var lw = ctx.lineWidth;
|
|
ctx.lineWidth = ctx.lineWidth * customFont.fontFace.unitsPerEm / fontSize;
|
|
if (fontStyle == 'italic') ctx.transform(1, 0, .4, 1, 0, 0);
|
|
glyph.render(ctx);
|
|
if (fontStyle == 'italic') ctx.transform(1, 0, -.4, 1, 0, 0);
|
|
ctx.lineWidth = lw;
|
|
ctx.scale(1/scale, -1/scale);
|
|
ctx.translate(-this.x, -this.y);
|
|
|
|
this.x += fontSize * (glyph.horizAdvX || customFont.horizAdvX) / customFont.fontFace.unitsPerEm;
|
|
if (typeof(dx[i]) != 'undefined' && !isNaN(dx[i])) {
|
|
this.x += dx[i];
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (ctx.strokeStyle != '') ctx.strokeText(svg.compressSpaces(this.getText()), this.x, this.y);
|
|
if (ctx.fillStyle != '') ctx.fillText(svg.compressSpaces(this.getText()), this.x, this.y);
|
|
}
|
|
|
|
this.getText = function() {
|
|
// OVERRIDE ME
|
|
}
|
|
|
|
this.measureText = function(ctx) {
|
|
var customFont = this.parent.style('font-family').Definition.getDefinition();
|
|
if (customFont != null) {
|
|
var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
|
|
var measure = 0;
|
|
var text = this.getText();
|
|
if (customFont.isRTL) text = text.split("").reverse().join("");
|
|
var dx = svg.ToNumberArray(this.parent.attribute('dx').value);
|
|
for (var i=0; i<text.length; i++) {
|
|
var glyph = this.getGlyph(customFont, text, i);
|
|
measure += (glyph.horizAdvX || customFont.horizAdvX) * fontSize / customFont.fontFace.unitsPerEm;
|
|
if (typeof(dx[i]) != 'undefined' && !isNaN(dx[i])) {
|
|
measure += dx[i];
|
|
}
|
|
}
|
|
return measure;
|
|
}
|
|
|
|
var textToMeasure = svg.compressSpaces(this.getText());
|
|
if (!ctx.measureText) return textToMeasure.length * 10;
|
|
|
|
ctx.save();
|
|
this.setContext(ctx);
|
|
var width = ctx.measureText(textToMeasure).width;
|
|
ctx.restore();
|
|
return width;
|
|
}
|
|
}
|
|
svg.Element.TextElementBase.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// tspan
|
|
svg.Element.tspan = function(node) {
|
|
this.base = svg.Element.TextElementBase;
|
|
this.base(node);
|
|
|
|
this.text = node.nodeType == 3 ? node.nodeValue : // text
|
|
node.childNodes.length > 0 ? node.childNodes[0].nodeValue : // element
|
|
node.text;
|
|
this.getText = function() {
|
|
return this.text;
|
|
}
|
|
}
|
|
svg.Element.tspan.prototype = new svg.Element.TextElementBase;
|
|
|
|
// tref
|
|
svg.Element.tref = function(node) {
|
|
this.base = svg.Element.TextElementBase;
|
|
this.base(node);
|
|
|
|
this.getText = function() {
|
|
var element = this.attribute('xlink:href').Definition.getDefinition();
|
|
if (element != null) return element.children[0].getText();
|
|
}
|
|
}
|
|
svg.Element.tref.prototype = new svg.Element.TextElementBase;
|
|
|
|
// a element
|
|
svg.Element.a = function(node) {
|
|
this.base = svg.Element.TextElementBase;
|
|
this.base(node);
|
|
|
|
this.hasText = true;
|
|
for (var i=0; i<node.childNodes.length; i++) {
|
|
if (node.childNodes[i].nodeType != 3) this.hasText = false;
|
|
}
|
|
|
|
// this might contain text
|
|
this.text = this.hasText ? node.childNodes[0].nodeValue : '';
|
|
this.getText = function() {
|
|
return this.text;
|
|
}
|
|
|
|
this.baseRenderChildren = this.renderChildren;
|
|
this.renderChildren = function(ctx) {
|
|
if (this.hasText) {
|
|
// render as text element
|
|
this.baseRenderChildren(ctx);
|
|
var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);
|
|
svg.Mouse.checkBoundingBox(this, new svg.BoundingBox(this.x, this.y - fontSize.Length.toPixels('y'), this.x + this.measureText(ctx), this.y));
|
|
}
|
|
else {
|
|
// render as temporary group
|
|
var g = new svg.Element.g();
|
|
g.children = this.children;
|
|
g.parent = this;
|
|
g.render(ctx);
|
|
}
|
|
}
|
|
|
|
this.onclick = function() {
|
|
window.open(this.attribute('xlink:href').value);
|
|
}
|
|
|
|
this.onmousemove = function() {
|
|
svg.ctx.canvas.style.cursor = 'pointer';
|
|
}
|
|
}
|
|
svg.Element.a.prototype = new svg.Element.TextElementBase;
|
|
|
|
// image element
|
|
svg.Element.image = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
svg.Images.push(this);
|
|
this.img = document.createElement('img');
|
|
this.loaded = false;
|
|
var that = this;
|
|
this.img.onload = function() { that.loaded = true; }
|
|
this.img.src = this.attribute('xlink:href').value;
|
|
|
|
this.renderChildren = function(ctx) {
|
|
var x = this.attribute('x').Length.toPixels('x');
|
|
var y = this.attribute('y').Length.toPixels('y');
|
|
|
|
var width = this.attribute('width').Length.toPixels('x');
|
|
var height = this.attribute('height').Length.toPixels('y');
|
|
if (width == 0 || height == 0) return;
|
|
|
|
ctx.save();
|
|
ctx.translate(x, y);
|
|
svg.AspectRatio(ctx,
|
|
this.attribute('preserveAspectRatio').value,
|
|
width,
|
|
this.img.width,
|
|
height,
|
|
this.img.height,
|
|
0,
|
|
0);
|
|
ctx.drawImage(this.img, 0, 0);
|
|
ctx.restore();
|
|
}
|
|
}
|
|
svg.Element.image.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// group element
|
|
svg.Element.g = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.getBoundingBox = function() {
|
|
var bb = new svg.BoundingBox();
|
|
for (var i=0; i<this.children.length; i++) {
|
|
bb.addBoundingBox(this.children[i].getBoundingBox());
|
|
}
|
|
return bb;
|
|
};
|
|
}
|
|
svg.Element.g.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// symbol element
|
|
svg.Element.symbol = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.baseSetContext = this.setContext;
|
|
this.setContext = function(ctx) {
|
|
this.baseSetContext(ctx);
|
|
|
|
// viewbox
|
|
if (this.attribute('viewBox').hasValue()) {
|
|
var viewBox = svg.ToNumberArray(this.attribute('viewBox').value);
|
|
var minX = viewBox[0];
|
|
var minY = viewBox[1];
|
|
width = viewBox[2];
|
|
height = viewBox[3];
|
|
|
|
svg.AspectRatio(ctx,
|
|
this.attribute('preserveAspectRatio').value,
|
|
this.attribute('width').Length.toPixels('x'),
|
|
width,
|
|
this.attribute('height').Length.toPixels('y'),
|
|
height,
|
|
minX,
|
|
minY);
|
|
|
|
svg.ViewPort.SetCurrent(viewBox[2], viewBox[3]);
|
|
}
|
|
}
|
|
}
|
|
svg.Element.symbol.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// style element
|
|
svg.Element.style = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
// text, or spaces then CDATA
|
|
var css = node.childNodes[0].nodeValue + (node.childNodes.length > 1 ? node.childNodes[1].nodeValue : '');
|
|
css = css.replace(/(\/\*([^*]|[\r\n]|(\*+([^*\/]|[\r\n])))*\*+\/)|(^[\s]*\/\/.*)/gm, ''); // remove comments
|
|
css = svg.compressSpaces(css); // replace whitespace
|
|
var cssDefs = css.split('}');
|
|
for (var i=0; i<cssDefs.length; i++) {
|
|
if (svg.trim(cssDefs[i]) != '') {
|
|
var cssDef = cssDefs[i].split('{');
|
|
var cssClasses = cssDef[0].split(',');
|
|
var cssProps = cssDef[1].split(';');
|
|
for (var j=0; j<cssClasses.length; j++) {
|
|
var cssClass = svg.trim(cssClasses[j]);
|
|
if (cssClass != '') {
|
|
var props = {};
|
|
for (var k=0; k<cssProps.length; k++) {
|
|
var prop = cssProps[k].indexOf(':');
|
|
var name = cssProps[k].substr(0, prop);
|
|
var value = cssProps[k].substr(prop + 1, cssProps[k].length - prop);
|
|
if (name != null && value != null) {
|
|
props[svg.trim(name)] = new svg.Property(svg.trim(name), svg.trim(value));
|
|
}
|
|
}
|
|
svg.Styles[cssClass] = props;
|
|
if (cssClass == '@font-face') {
|
|
var fontFamily = props['font-family'].value.replace(/"/g,'');
|
|
var srcs = props['src'].value.split(',');
|
|
for (var s=0; s<srcs.length; s++) {
|
|
if (srcs[s].indexOf('format("svg")') > 0) {
|
|
var urlStart = srcs[s].indexOf('url');
|
|
var urlEnd = srcs[s].indexOf(')', urlStart);
|
|
var url = srcs[s].substr(urlStart + 5, urlEnd - urlStart - 6);
|
|
var doc = svg.parseXml(svg.ajax(url));
|
|
var fonts = doc.getElementsByTagName('font');
|
|
for (var f=0; f<fonts.length; f++) {
|
|
var font = svg.CreateElement(fonts[f]);
|
|
svg.Definitions[fontFamily] = font;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
svg.Element.style.prototype = new svg.Element.ElementBase;
|
|
|
|
// use element
|
|
svg.Element.use = function(node) {
|
|
this.base = svg.Element.RenderedElementBase;
|
|
this.base(node);
|
|
|
|
this.baseSetContext = this.setContext;
|
|
this.setContext = function(ctx) {
|
|
this.baseSetContext(ctx);
|
|
if (this.attribute('x').hasValue()) ctx.translate(this.attribute('x').Length.toPixels('x'), 0);
|
|
if (this.attribute('y').hasValue()) ctx.translate(0, this.attribute('y').Length.toPixels('y'));
|
|
}
|
|
|
|
this.getDefinition = function() {
|
|
var element = this.attribute('xlink:href').Definition.getDefinition();
|
|
if (this.attribute('width').hasValue()) element.attribute('width', true).value = this.attribute('width').value;
|
|
if (this.attribute('height').hasValue()) element.attribute('height', true).value = this.attribute('height').value;
|
|
return element;
|
|
}
|
|
|
|
this.path = function(ctx) {
|
|
var element = this.getDefinition();
|
|
if (element != null) element.path(ctx);
|
|
}
|
|
|
|
this.renderChildren = function(ctx) {
|
|
var element = this.getDefinition();
|
|
if (element != null) element.render(ctx);
|
|
}
|
|
}
|
|
svg.Element.use.prototype = new svg.Element.RenderedElementBase;
|
|
|
|
// mask element
|
|
svg.Element.mask = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.apply = function(ctx, element) {
|
|
// render as temp svg
|
|
var x = this.attribute('x').Length.toPixels('x');
|
|
var y = this.attribute('y').Length.toPixels('y');
|
|
var width = this.attribute('width').Length.toPixels('x');
|
|
var height = this.attribute('height').Length.toPixels('y');
|
|
|
|
// temporarily remove mask to avoid recursion
|
|
var mask = element.attribute('mask').value;
|
|
element.attribute('mask').value = '';
|
|
|
|
var cMask = document.createElement('canvas');
|
|
cMask.width = x + width;
|
|
cMask.height = y + height;
|
|
var maskCtx = cMask.getContext('2d');
|
|
this.renderChildren(maskCtx);
|
|
|
|
var c = document.createElement('canvas');
|
|
c.width = x + width;
|
|
c.height = y + height;
|
|
var tempCtx = c.getContext('2d');
|
|
element.render(tempCtx);
|
|
tempCtx.globalCompositeOperation = 'destination-in';
|
|
tempCtx.fillStyle = maskCtx.createPattern(cMask, 'no-repeat');
|
|
tempCtx.fillRect(0, 0, x + width, y + height);
|
|
|
|
ctx.fillStyle = tempCtx.createPattern(c, 'no-repeat');
|
|
ctx.fillRect(0, 0, x + width, y + height);
|
|
|
|
// reassign mask
|
|
element.attribute('mask').value = mask;
|
|
}
|
|
|
|
this.render = function(ctx) {
|
|
// NO RENDER
|
|
}
|
|
}
|
|
svg.Element.mask.prototype = new svg.Element.ElementBase;
|
|
|
|
// clip element
|
|
svg.Element.clipPath = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.apply = function(ctx) {
|
|
for (var i=0; i<this.children.length; i++) {
|
|
if (this.children[i].path) {
|
|
this.children[i].path(ctx);
|
|
ctx.clip();
|
|
}
|
|
}
|
|
}
|
|
|
|
this.render = function(ctx) {
|
|
// NO RENDER
|
|
}
|
|
}
|
|
svg.Element.clipPath.prototype = new svg.Element.ElementBase;
|
|
|
|
// filters
|
|
svg.Element.filter = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
this.apply = function(ctx, element) {
|
|
// render as temp svg
|
|
var bb = element.getBoundingBox();
|
|
var x = this.attribute('x').Length.toPixels('x');
|
|
var y = this.attribute('y').Length.toPixels('y');
|
|
if (x == 0 || y == 0) {
|
|
x = bb.x1;
|
|
y = bb.y1;
|
|
}
|
|
var width = this.attribute('width').Length.toPixels('x');
|
|
var height = this.attribute('height').Length.toPixels('y');
|
|
if (width == 0 || height == 0) {
|
|
width = bb.width();
|
|
height = bb.height();
|
|
}
|
|
|
|
// temporarily remove filter to avoid recursion
|
|
var filter = element.style('filter').value;
|
|
element.style('filter').value = '';
|
|
|
|
// max filter distance
|
|
var extraPercent = .20;
|
|
var px = extraPercent * width;
|
|
var py = extraPercent * height;
|
|
|
|
var c = document.createElement('canvas');
|
|
c.width = width + 2*px;
|
|
c.height = height + 2*py;
|
|
var tempCtx = c.getContext('2d');
|
|
tempCtx.translate(-x + px, -y + py);
|
|
element.render(tempCtx);
|
|
|
|
// apply filters
|
|
for (var i=0; i<this.children.length; i++) {
|
|
this.children[i].apply(tempCtx, 0, 0, width + 2*px, height + 2*py);
|
|
}
|
|
|
|
// render on me
|
|
ctx.drawImage(c, 0, 0, width + 2*px, height + 2*py, x - px, y - py, width + 2*px, height + 2*py);
|
|
|
|
// reassign filter
|
|
element.style('filter', true).value = filter;
|
|
}
|
|
|
|
this.render = function(ctx) {
|
|
// NO RENDER
|
|
}
|
|
}
|
|
svg.Element.filter.prototype = new svg.Element.ElementBase;
|
|
|
|
svg.Element.feGaussianBlur = function(node) {
|
|
this.base = svg.Element.ElementBase;
|
|
this.base(node);
|
|
|
|
function make_fgauss(sigma) {
|
|
sigma = Math.max(sigma, 0.01);
|
|
var len = Math.ceil(sigma * 4.0) + 1;
|
|
mask = [];
|
|
for (var i = 0; i < len; i++) {
|
|
mask[i] = Math.exp(-0.5 * (i / sigma) * (i / sigma));
|
|
}
|
|
return mask;
|
|
}
|
|
|
|
function normalize(mask) {
|
|
var sum = 0;
|
|
for (var i = 1; i < mask.length; i++) {
|
|
sum += Math.abs(mask[i]);
|
|
}
|
|
sum = 2 * sum + Math.abs(mask[0]);
|
|
for (var i = 0; i < mask.length; i++) {
|
|
mask[i] /= sum;
|
|
}
|
|
return mask;
|
|
}
|
|
|
|
function convolve_even(src, dst, mask, width, height) {
|
|
for (var y = 0; y < height; y++) {
|
|
for (var x = 0; x < width; x++) {
|
|
var a = imGet(src, x, y, width, height, 3)/255;
|
|
for (var rgba = 0; rgba < 4; rgba++) {
|
|
var sum = mask[0] * (a==0?255:imGet(src, x, y, width, height, rgba)) * (a==0||rgba==3?1:a);
|
|
for (var i = 1; i < mask.length; i++) {
|
|
var a1 = imGet(src, Math.max(x-i,0), y, width, height, 3)/255;
|
|
var a2 = imGet(src, Math.min(x+i, width-1), y, width, height, 3)/255;
|
|
sum += mask[i] *
|
|
((a1==0?255:imGet(src, Math.max(x-i,0), y, width, height, rgba)) * (a1==0||rgba==3?1:a1) +
|
|
(a2==0?255:imGet(src, Math.min(x+i, width-1), y, width, height, rgba)) * (a2==0||rgba==3?1:a2));
|
|
}
|
|
imSet(dst, y, x, height, width, rgba, sum);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function imGet(img, x, y, width, height, rgba) {
|
|
return img[y*width*4 + x*4 + rgba];
|
|
}
|
|
|
|
function imSet(img, x, y, width, height, rgba, val) {
|
|
img[y*width*4 + x*4 + rgba] = val;
|
|
}
|
|
|
|
function blur(ctx, width, height, sigma)
|
|
{
|
|
var srcData = ctx.getImageData(0, 0, width, height);
|
|
var mask = make_fgauss(sigma);
|
|
mask = normalize(mask);
|
|
tmp = [];
|
|
convolve_even(srcData.data, tmp, mask, width, height);
|
|
convolve_even(tmp, srcData.data, mask, height, width);
|
|
ctx.clearRect(0, 0, width, height);
|
|
ctx.putImageData(srcData, 0, 0);
|
|
}
|
|
|
|
this.apply = function(ctx, x, y, width, height) {
|
|
// assuming x==0 && y==0 for now
|
|
blur(ctx, width, height, this.attribute('stdDeviation').numValue());
|
|
}
|
|
}
|
|
svg.Element.filter.prototype = new svg.Element.feGaussianBlur;
|
|
|
|
// title element, do nothing
|
|
svg.Element.title = function(node) {
|
|
}
|
|
svg.Element.title.prototype = new svg.Element.ElementBase;
|
|
|
|
// desc element, do nothing
|
|
svg.Element.desc = function(node) {
|
|
}
|
|
svg.Element.desc.prototype = new svg.Element.ElementBase;
|
|
|
|
svg.Element.MISSING = function(node) {
|
|
console.log('ERROR: Element \'' + node.nodeName + '\' not yet implemented.');
|
|
}
|
|
svg.Element.MISSING.prototype = new svg.Element.ElementBase;
|
|
|
|
// element factory
|
|
svg.CreateElement = function(node) {
|
|
var className = node.nodeName.replace(/^[^:]+:/,''); // remove namespace
|
|
className = className.replace(/\-/g,''); // remove dashes
|
|
var e = null;
|
|
if (typeof(svg.Element[className]) != 'undefined') {
|
|
e = new svg.Element[className](node);
|
|
}
|
|
else {
|
|
e = new svg.Element.MISSING(node);
|
|
}
|
|
|
|
e.type = node.nodeName;
|
|
return e;
|
|
}
|
|
|
|
// load from url
|
|
svg.load = function(ctx, url) {
|
|
svg.loadXml(ctx, svg.ajax(url));
|
|
}
|
|
|
|
// load from xml
|
|
svg.loadXml = function(ctx, xml) {
|
|
svg.loadXmlDoc(ctx, svg.parseXml(xml));
|
|
}
|
|
|
|
svg.loadXmlDoc = function(ctx, dom) {
|
|
svg.init(ctx);
|
|
|
|
var mapXY = function(p) {
|
|
var e = ctx.canvas;
|
|
while (e) {
|
|
p.x -= e.offsetLeft;
|
|
p.y -= e.offsetTop;
|
|
e = e.offsetParent;
|
|
}
|
|
if (window.scrollX) p.x += window.scrollX;
|
|
if (window.scrollY) p.y += window.scrollY;
|
|
return p;
|
|
}
|
|
|
|
// bind mouse
|
|
if (svg.opts['ignoreMouse'] != true) {
|
|
ctx.canvas.onclick = function(e) {
|
|
var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY));
|
|
svg.Mouse.onclick(p.x, p.y);
|
|
};
|
|
ctx.canvas.onmousemove = function(e) {
|
|
var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY));
|
|
svg.Mouse.onmousemove(p.x, p.y);
|
|
};
|
|
}
|
|
|
|
var e = svg.CreateElement(dom.documentElement);
|
|
e.root = true;
|
|
|
|
// render loop
|
|
var isFirstRender = true;
|
|
var draw = function() {
|
|
svg.ViewPort.Clear();
|
|
if (ctx.canvas.parentNode) svg.ViewPort.SetCurrent(ctx.canvas.parentNode.clientWidth, ctx.canvas.parentNode.clientHeight);
|
|
|
|
if (svg.opts['ignoreDimensions'] != true) {
|
|
// set canvas size
|
|
if (e.style('width').hasValue()) {
|
|
ctx.canvas.width = e.style('width').Length.toPixels('x');
|
|
ctx.canvas.style.width = ctx.canvas.width + 'px';
|
|
}
|
|
if (e.style('height').hasValue()) {
|
|
ctx.canvas.height = e.style('height').Length.toPixels('y');
|
|
ctx.canvas.style.height = ctx.canvas.height + 'px';
|
|
}
|
|
}
|
|
var cWidth = ctx.canvas.clientWidth || ctx.canvas.width;
|
|
var cHeight = ctx.canvas.clientHeight || ctx.canvas.height;
|
|
svg.ViewPort.SetCurrent(cWidth, cHeight);
|
|
|
|
if (svg.opts != null && svg.opts['offsetX'] != null) e.attribute('x', true).value = svg.opts['offsetX'];
|
|
if (svg.opts != null && svg.opts['offsetY'] != null) e.attribute('y', true).value = svg.opts['offsetY'];
|
|
if (svg.opts != null && svg.opts['scaleWidth'] != null && svg.opts['scaleHeight'] != null) {
|
|
var xRatio = 1, yRatio = 1;
|
|
if (e.attribute('width').hasValue()) xRatio = e.attribute('width').Length.toPixels('x') / svg.opts['scaleWidth'];
|
|
if (e.attribute('height').hasValue()) yRatio = e.attribute('height').Length.toPixels('y') / svg.opts['scaleHeight'];
|
|
|
|
e.attribute('width', true).value = svg.opts['scaleWidth'];
|
|
e.attribute('height', true).value = svg.opts['scaleHeight'];
|
|
e.attribute('viewBox', true).value = '0 0 ' + (cWidth * xRatio) + ' ' + (cHeight * yRatio);
|
|
e.attribute('preserveAspectRatio', true).value = 'none';
|
|
}
|
|
|
|
// clear and render
|
|
if (svg.opts['ignoreClear'] != true) {
|
|
ctx.clearRect(0, 0, cWidth, cHeight);
|
|
}
|
|
e.render(ctx);
|
|
if (isFirstRender) {
|
|
isFirstRender = false;
|
|
if (svg.opts != null && typeof(svg.opts['renderCallback']) == 'function') svg.opts['renderCallback']();
|
|
}
|
|
}
|
|
|
|
var waitingForImages = true;
|
|
if (svg.ImagesLoaded()) {
|
|
waitingForImages = false;
|
|
draw();
|
|
}
|
|
svg.intervalID = setInterval(function() {
|
|
var needUpdate = false;
|
|
|
|
if (waitingForImages && svg.ImagesLoaded()) {
|
|
waitingForImages = false;
|
|
needUpdate = true;
|
|
}
|
|
|
|
// need update from mouse events?
|
|
if (svg.opts['ignoreMouse'] != true) {
|
|
needUpdate = needUpdate | svg.Mouse.hasEvents();
|
|
}
|
|
|
|
// need update from animations?
|
|
if (svg.opts['ignoreAnimation'] != true) {
|
|
for (var i=0; i<svg.Animations.length; i++) {
|
|
needUpdate = needUpdate | svg.Animations[i].update(1000 / svg.FRAMERATE);
|
|
}
|
|
}
|
|
|
|
// need update from redraw?
|
|
if (svg.opts != null && typeof(svg.opts['forceRedraw']) == 'function') {
|
|
if (svg.opts['forceRedraw']() == true) needUpdate = true;
|
|
}
|
|
|
|
// render if needed
|
|
if (needUpdate) {
|
|
draw();
|
|
svg.Mouse.runEvents(); // run and clear our events
|
|
}
|
|
}, 1000 / svg.FRAMERATE);
|
|
}
|
|
|
|
svg.stop = function() {
|
|
if (svg.intervalID) {
|
|
clearInterval(svg.intervalID);
|
|
}
|
|
}
|
|
|
|
svg.Mouse = new (function() {
|
|
this.events = [];
|
|
this.hasEvents = function() { return this.events.length != 0; }
|
|
|
|
this.onclick = function(x, y) {
|
|
this.events.push({ type: 'onclick', x: x, y: y,
|
|
run: function(e) { if (e.onclick) e.onclick(); }
|
|
});
|
|
}
|
|
|
|
this.onmousemove = function(x, y) {
|
|
this.events.push({ type: 'onmousemove', x: x, y: y,
|
|
run: function(e) { if (e.onmousemove) e.onmousemove(); }
|
|
});
|
|
}
|
|
|
|
this.eventElements = [];
|
|
|
|
this.checkPath = function(element, ctx) {
|
|
for (var i=0; i<this.events.length; i++) {
|
|
var e = this.events[i];
|
|
if (ctx.isPointInPath && ctx.isPointInPath(e.x, e.y)) this.eventElements[i] = element;
|
|
}
|
|
}
|
|
|
|
this.checkBoundingBox = function(element, bb) {
|
|
for (var i=0; i<this.events.length; i++) {
|
|
var e = this.events[i];
|
|
if (bb.isPointInBox(e.x, e.y)) this.eventElements[i] = element;
|
|
}
|
|
}
|
|
|
|
this.runEvents = function() {
|
|
svg.ctx.canvas.style.cursor = '';
|
|
|
|
for (var i=0; i<this.events.length; i++) {
|
|
var e = this.events[i];
|
|
var element = this.eventElements[i];
|
|
while (element) {
|
|
e.run(element);
|
|
element = element.parent;
|
|
}
|
|
}
|
|
|
|
// done running, clear
|
|
this.events = [];
|
|
this.eventElements = [];
|
|
}
|
|
});
|
|
|
|
return svg;
|
|
}
|
|
})();
|
|
|
|
if (CanvasRenderingContext2D) {
|
|
CanvasRenderingContext2D.prototype.drawSvg = function(s, dx, dy, dw, dh) {
|
|
canvg(this.canvas, s, {
|
|
ignoreMouse: true,
|
|
ignoreAnimation: true,
|
|
ignoreDimensions: true,
|
|
ignoreClear: true,
|
|
offsetX: dx,
|
|
offsetY: dy,
|
|
scaleWidth: dw,
|
|
scaleHeight: dh
|
|
});
|
|
}
|
|
}/**
|
|
* @license Highcharts JS v4.1.8 (2015-08-20)
|
|
* CanVGRenderer Extension module
|
|
*
|
|
* (c) 2011-2012 Torstein Honsi, Erik Olsson
|
|
*
|
|
* License: www.highcharts.com/license
|
|
*/
|
|
|
|
// JSLint options:
|
|
/*global Highcharts */
|
|
|
|
(function (Highcharts) { // encapsulate
|
|
var UNDEFINED,
|
|
DIV = 'div',
|
|
ABSOLUTE = 'absolute',
|
|
RELATIVE = 'relative',
|
|
HIDDEN = 'hidden',
|
|
VISIBLE = 'visible',
|
|
PX = 'px',
|
|
css = Highcharts.css,
|
|
CanVGRenderer = Highcharts.CanVGRenderer,
|
|
SVGRenderer = Highcharts.SVGRenderer,
|
|
extend = Highcharts.extend,
|
|
merge = Highcharts.merge,
|
|
addEvent = Highcharts.addEvent,
|
|
createElement = Highcharts.createElement,
|
|
discardElement = Highcharts.discardElement;
|
|
|
|
// Extend CanVG renderer on demand, inherit from SVGRenderer
|
|
extend(CanVGRenderer.prototype, SVGRenderer.prototype);
|
|
|
|
// Add additional functionality:
|
|
extend(CanVGRenderer.prototype, {
|
|
create: function (chart, container, chartWidth, chartHeight) {
|
|
this.setContainer(container, chartWidth, chartHeight);
|
|
this.configure(chart);
|
|
},
|
|
setContainer: function (container, chartWidth, chartHeight) {
|
|
var containerStyle = container.style,
|
|
containerParent = container.parentNode,
|
|
containerLeft = containerStyle.left,
|
|
containerTop = containerStyle.top,
|
|
containerOffsetWidth = container.offsetWidth,
|
|
containerOffsetHeight = container.offsetHeight,
|
|
canvas,
|
|
initialHiddenStyle = { visibility: HIDDEN, position: ABSOLUTE };
|
|
|
|
this.init.apply(this, [container, chartWidth, chartHeight]);
|
|
|
|
// add the canvas above it
|
|
canvas = createElement('canvas', {
|
|
width: containerOffsetWidth,
|
|
height: containerOffsetHeight
|
|
}, {
|
|
position: RELATIVE,
|
|
left: containerLeft,
|
|
top: containerTop
|
|
}, container);
|
|
this.canvas = canvas;
|
|
|
|
// Create the tooltip line and div, they are placed as siblings to
|
|
// the container (and as direct childs to the div specified in the html page)
|
|
this.ttLine = createElement(DIV, null, initialHiddenStyle, containerParent);
|
|
this.ttDiv = createElement(DIV, null, initialHiddenStyle, containerParent);
|
|
this.ttTimer = UNDEFINED;
|
|
|
|
// Move away the svg node to a new div inside the container's parent so we can hide it.
|
|
var hiddenSvg = createElement(DIV, {
|
|
width: containerOffsetWidth,
|
|
height: containerOffsetHeight
|
|
}, {
|
|
visibility: HIDDEN,
|
|
left: containerLeft,
|
|
top: containerTop
|
|
}, containerParent);
|
|
this.hiddenSvg = hiddenSvg;
|
|
hiddenSvg.appendChild(this.box);
|
|
},
|
|
|
|
/**
|
|
* Configures the renderer with the chart. Attach a listener to the event tooltipRefresh.
|
|
**/
|
|
configure: function (chart) {
|
|
var renderer = this,
|
|
options = chart.options.tooltip,
|
|
borderWidth = options.borderWidth,
|
|
tooltipDiv = renderer.ttDiv,
|
|
tooltipDivStyle = options.style,
|
|
tooltipLine = renderer.ttLine,
|
|
padding = parseInt(tooltipDivStyle.padding, 10);
|
|
|
|
// Add border styling from options to the style
|
|
tooltipDivStyle = merge(tooltipDivStyle, {
|
|
padding: padding + PX,
|
|
'background-color': options.backgroundColor,
|
|
'border-style': 'solid',
|
|
'border-width': borderWidth + PX,
|
|
'border-radius': options.borderRadius + PX
|
|
});
|
|
|
|
// Optionally add shadow
|
|
if (options.shadow) {
|
|
tooltipDivStyle = merge(tooltipDivStyle, {
|
|
'box-shadow': '1px 1px 3px gray', // w3c
|
|
'-webkit-box-shadow': '1px 1px 3px gray' // webkit
|
|
});
|
|
}
|
|
css(tooltipDiv, tooltipDivStyle);
|
|
|
|
// Set simple style on the line
|
|
css(tooltipLine, {
|
|
'border-left': '1px solid darkgray'
|
|
});
|
|
|
|
// This event is triggered when a new tooltip should be shown
|
|
addEvent(chart, 'tooltipRefresh', function (args) {
|
|
var chartContainer = chart.container,
|
|
offsetLeft = chartContainer.offsetLeft,
|
|
offsetTop = chartContainer.offsetTop,
|
|
position;
|
|
|
|
// Set the content of the tooltip
|
|
tooltipDiv.innerHTML = args.text;
|
|
|
|
// Compute the best position for the tooltip based on the divs size and container size.
|
|
position = chart.tooltip.getPosition(tooltipDiv.offsetWidth, tooltipDiv.offsetHeight, {plotX: args.x, plotY: args.y});
|
|
|
|
css(tooltipDiv, {
|
|
visibility: VISIBLE,
|
|
left: position.x + PX,
|
|
top: position.y + PX,
|
|
'border-color': args.borderColor
|
|
});
|
|
|
|
// Position the tooltip line
|
|
css(tooltipLine, {
|
|
visibility: VISIBLE,
|
|
left: offsetLeft + args.x + PX,
|
|
top: offsetTop + chart.plotTop + PX,
|
|
height: chart.plotHeight + PX
|
|
});
|
|
|
|
// This timeout hides the tooltip after 3 seconds
|
|
// First clear any existing timer
|
|
if (renderer.ttTimer !== UNDEFINED) {
|
|
clearTimeout(renderer.ttTimer);
|
|
}
|
|
|
|
// Start a new timer that hides tooltip and line
|
|
renderer.ttTimer = setTimeout(function () {
|
|
css(tooltipDiv, { visibility: HIDDEN });
|
|
css(tooltipLine, { visibility: HIDDEN });
|
|
}, 3000);
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Extend SVGRenderer.destroy to also destroy the elements added by CanVGRenderer.
|
|
*/
|
|
destroy: function () {
|
|
var renderer = this;
|
|
|
|
// Remove the canvas
|
|
discardElement(renderer.canvas);
|
|
|
|
// Kill the timer
|
|
if (renderer.ttTimer !== UNDEFINED) {
|
|
clearTimeout(renderer.ttTimer);
|
|
}
|
|
|
|
// Remove the divs for tooltip and line
|
|
discardElement(renderer.ttLine);
|
|
discardElement(renderer.ttDiv);
|
|
discardElement(renderer.hiddenSvg);
|
|
|
|
// Continue with base class
|
|
return SVGRenderer.prototype.destroy.apply(renderer);
|
|
},
|
|
|
|
/**
|
|
* Take a color and return it if it's a string, do not make it a gradient even if it is a
|
|
* gradient. Currently canvg cannot render gradients (turns out black),
|
|
* see: http://code.google.com/p/canvg/issues/detail?id=104
|
|
*
|
|
* @param {Object} color The color or config object
|
|
*/
|
|
color: function (color, elem, prop) {
|
|
if (color && color.linearGradient) {
|
|
// Pick the end color and forward to base implementation
|
|
color = color.stops[color.stops.length - 1][1];
|
|
}
|
|
return SVGRenderer.prototype.color.call(this, color, elem, prop);
|
|
},
|
|
|
|
/**
|
|
* Draws the SVG on the canvas or adds a draw invokation to the deferred list.
|
|
*/
|
|
draw: function () {
|
|
var renderer = this;
|
|
window.canvg(renderer.canvas, renderer.hiddenSvg.innerHTML);
|
|
}
|
|
});
|
|
}(Highcharts));
|