1 | import requestAnimationFrame from 'raf';
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2 | import RGBColor from 'rgbcolor';
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3 | import { SVGPathData } from 'svg-pathdata';
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4 | import { canvasRGBA } from 'stackblur-canvas';
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5 |
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6 |
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7 |
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8 |
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9 |
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10 | function compressSpaces(str) {
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11 | return str.replace(/(?!\u3000)\s+/gm, ' ');
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12 | }
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13 |
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14 |
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15 |
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16 |
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17 | function trimLeft(str) {
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18 | return str.replace(/^[\n \t]+/, '');
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19 | }
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20 |
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21 |
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22 |
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23 |
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24 | function trimRight(str) {
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25 | return str.replace(/[\n \t]+$/, '');
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26 | }
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27 |
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28 |
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29 |
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30 |
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31 | function toNumbers(str) {
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32 | const matches = (str || '').match(/-?(\d+(?:\.\d*(?:[eE][+-]?\d+)?)?|\.\d+)(?=\D|$)/gm) || [];
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33 | return matches.map(parseFloat);
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34 | }
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35 |
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36 | const allUppercase = /^[A-Z-]+$/;
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37 |
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38 |
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39 |
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40 |
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41 | function normalizeAttributeName(name) {
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42 | if (allUppercase.test(name)) {
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43 | return name.toLowerCase();
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44 | }
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45 | return name;
|
46 | }
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47 |
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48 |
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49 |
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50 |
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51 | function parseExternalUrl(url) {
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52 |
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53 |
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54 |
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55 |
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56 | const urlMatch = url.match(/url\(('([^']+)'|"([^"]+)"|([^'"\)]+))\)/) || [];
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57 | return urlMatch[2] || urlMatch[3] || urlMatch[4];
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58 | }
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59 |
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60 |
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61 |
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62 |
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63 | function normalizeColor(color) {
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64 | if (!color.startsWith('rgb')) {
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65 | return color;
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66 | }
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67 | let rgbParts = 3;
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68 | const normalizedColor = color.replace(/\d+(\.\d+)?/g, (num, isFloat) => rgbParts-- && isFloat
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69 | ? String(Math.round(parseFloat(num)))
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70 | : num);
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71 | return normalizedColor;
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72 | }
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73 |
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74 |
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75 | const attributeRegex = /(\[[^\]]+\])/g;
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76 | const idRegex = /(#[^\s\+>~\.\[:]+)/g;
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77 | const classRegex = /(\.[^\s\+>~\.\[:]+)/g;
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78 | const pseudoElementRegex = /(::[^\s\+>~\.\[:]+|:first-line|:first-letter|:before|:after)/gi;
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79 | const pseudoClassWithBracketsRegex = /(:[\w-]+\([^\)]*\))/gi;
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80 | const pseudoClassRegex = /(:[^\s\+>~\.\[:]+)/g;
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81 | const elementRegex = /([^\s\+>~\.\[:]+)/g;
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82 | function findSelectorMatch(selector, regex) {
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83 | const matches = selector.match(regex);
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84 | if (!matches) {
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85 | return [
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86 | selector,
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87 | 0
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88 | ];
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89 | }
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90 | return [
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91 | selector.replace(regex, ' '),
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92 | matches.length
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93 | ];
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94 | }
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95 |
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96 |
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97 |
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98 |
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99 | function getSelectorSpecificity(selector) {
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100 | const specificity = [0, 0, 0];
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101 | let currentSelector = selector
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102 | .replace(/:not\(([^\)]*)\)/g, ' $1 ')
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103 | .replace(/{[\s\S]*/gm, ' ');
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104 | let delta = 0;
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105 | [currentSelector, delta] = findSelectorMatch(currentSelector, attributeRegex);
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106 | specificity[1] += delta;
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107 | [currentSelector, delta] = findSelectorMatch(currentSelector, idRegex);
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108 | specificity[0] += delta;
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109 | [currentSelector, delta] = findSelectorMatch(currentSelector, classRegex);
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110 | specificity[1] += delta;
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111 | [currentSelector, delta] = findSelectorMatch(currentSelector, pseudoElementRegex);
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112 | specificity[2] += delta;
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113 | [currentSelector, delta] = findSelectorMatch(currentSelector, pseudoClassWithBracketsRegex);
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114 | specificity[1] += delta;
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115 | [currentSelector, delta] = findSelectorMatch(currentSelector, pseudoClassRegex);
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116 | specificity[1] += delta;
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117 | currentSelector = currentSelector
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118 | .replace(/[\*\s\+>~]/g, ' ')
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119 | .replace(/[#\.]/g, ' ');
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120 | [currentSelector, delta] = findSelectorMatch(currentSelector, elementRegex);
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121 | specificity[2] += delta;
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122 | return specificity.join('');
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123 | }
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124 |
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125 | const PSEUDO_ZERO = .00000001;
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126 |
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127 |
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128 |
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129 | function vectorMagnitude(v) {
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130 | return Math.sqrt(Math.pow(v[0], 2) + Math.pow(v[1], 2));
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131 | }
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132 |
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133 |
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134 |
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135 | function vectorsRatio(u, v) {
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136 | return (u[0] * v[0] + u[1] * v[1]) / (vectorMagnitude(u) * vectorMagnitude(v));
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137 | }
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138 |
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139 |
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140 |
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141 | function vectorsAngle(u, v) {
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142 | return (u[0] * v[1] < u[1] * v[0] ? -1 : 1) * Math.acos(vectorsRatio(u, v));
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143 | }
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144 | function CB1(t) {
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145 | return t * t * t;
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146 | }
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147 | function CB2(t) {
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148 | return 3 * t * t * (1 - t);
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149 | }
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150 | function CB3(t) {
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151 | return 3 * t * (1 - t) * (1 - t);
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152 | }
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153 | function CB4(t) {
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154 | return (1 - t) * (1 - t) * (1 - t);
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155 | }
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156 | function QB1(t) {
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157 | return t * t;
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158 | }
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159 | function QB2(t) {
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160 | return 2 * t * (1 - t);
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161 | }
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162 | function QB3(t) {
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163 | return (1 - t) * (1 - t);
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164 | }
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165 |
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166 | class Property {
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167 | constructor(document, name, value) {
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168 | this.document = document;
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169 | this.name = name;
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170 | this.value = value;
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171 | this.isNormalizedColor = false;
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172 | }
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173 | static empty(document) {
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174 | return new Property(document, 'EMPTY', '');
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175 | }
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176 | split(separator = ' ') {
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177 | const { document, name } = this;
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178 | return compressSpaces(this.getString())
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179 | .trim()
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180 | .split(separator)
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181 | .map(value => new Property(document, name, value));
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182 | }
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183 | hasValue(zeroIsValue) {
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184 | const { value } = this;
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185 | return value !== null
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186 | && value !== ''
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187 | && (zeroIsValue || value !== 0)
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188 | && typeof value !== 'undefined';
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189 | }
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190 | isString(regexp) {
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191 | const { value } = this;
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192 | const result = typeof value === 'string';
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193 | if (!result || !regexp) {
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194 | return result;
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195 | }
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196 | return regexp.test(value);
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197 | }
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198 | isUrlDefinition() {
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199 | return this.isString(/^url\(/);
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200 | }
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201 | isPixels() {
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202 | if (!this.hasValue()) {
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203 | return false;
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204 | }
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205 | const asString = this.getString();
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206 | switch (true) {
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207 | case /px$/.test(asString):
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208 | case /^[0-9]+$/.test(asString):
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209 | return true;
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210 | default:
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211 | return false;
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212 | }
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213 | }
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214 | setValue(value) {
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215 | this.value = value;
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216 | return this;
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217 | }
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218 | getValue(def) {
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219 | if (typeof def === 'undefined' || this.hasValue()) {
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220 | return this.value;
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221 | }
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222 | return def;
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223 | }
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224 | getNumber(def) {
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225 | if (!this.hasValue()) {
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226 | if (typeof def === 'undefined') {
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227 | return 0;
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228 | }
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229 | return parseFloat(def);
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230 | }
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231 | const { value } = this;
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232 | let n = parseFloat(value);
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233 | if (this.isString(/%$/)) {
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234 | n = n / 100.0;
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235 | }
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236 | return n;
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237 | }
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238 | getString(def) {
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239 | if (typeof def === 'undefined' || this.hasValue()) {
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240 | return typeof this.value === 'undefined'
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241 | ? ''
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242 | : String(this.value);
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243 | }
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244 | return String(def);
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245 | }
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246 | getColor(def) {
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247 | let color = this.getString(def);
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248 | if (this.isNormalizedColor) {
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249 | return color;
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250 | }
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251 | this.isNormalizedColor = true;
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252 | color = normalizeColor(color);
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253 | this.value = color;
|
254 | return color;
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255 | }
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256 | getDpi() {
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257 | return 96.0;
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258 | }
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259 | getRem() {
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260 | return this.document.rootEmSize;
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261 | }
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262 | getEm() {
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263 | return this.document.emSize;
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264 | }
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265 | getUnits() {
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266 | return this.getString().replace(/[0-9\.\-]/g, '');
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267 | }
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268 | getPixels(axisOrIsFontSize, processPercent = false) {
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269 | if (!this.hasValue()) {
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270 | return 0;
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271 | }
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272 | const [axis, isFontSize] = typeof axisOrIsFontSize === 'boolean'
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273 | ? [undefined, axisOrIsFontSize]
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274 | : [axisOrIsFontSize];
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275 | const { viewPort } = this.document.screen;
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276 | switch (true) {
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277 | case this.isString(/vmin$/):
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278 | return this.getNumber()
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279 | / 100.0
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280 | * Math.min(viewPort.computeSize('x'), viewPort.computeSize('y'));
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281 | case this.isString(/vmax$/):
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282 | return this.getNumber()
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283 | / 100.0
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284 | * Math.max(viewPort.computeSize('x'), viewPort.computeSize('y'));
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285 | case this.isString(/vw$/):
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286 | return this.getNumber()
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287 | / 100.0
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288 | * viewPort.computeSize('x');
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289 | case this.isString(/vh$/):
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290 | return this.getNumber()
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291 | / 100.0
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292 | * viewPort.computeSize('y');
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293 | case this.isString(/rem$/):
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294 | return this.getNumber() * this.getRem( );
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295 | case this.isString(/em$/):
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296 | return this.getNumber() * this.getEm( );
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297 | case this.isString(/ex$/):
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298 | return this.getNumber() * this.getEm( ) / 2.0;
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299 | case this.isString(/px$/):
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300 | return this.getNumber();
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301 | case this.isString(/pt$/):
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302 | return this.getNumber() * this.getDpi( ) * (1.0 / 72.0);
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303 | case this.isString(/pc$/):
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304 | return this.getNumber() * 15;
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305 | case this.isString(/cm$/):
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306 | return this.getNumber() * this.getDpi( ) / 2.54;
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307 | case this.isString(/mm$/):
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308 | return this.getNumber() * this.getDpi( ) / 25.4;
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309 | case this.isString(/in$/):
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310 | return this.getNumber() * this.getDpi( );
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311 | case this.isString(/%$/) && isFontSize:
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312 | return this.getNumber() * this.getEm( );
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313 | case this.isString(/%$/):
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314 | return this.getNumber() * viewPort.computeSize(axis);
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315 | default: {
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316 | const n = this.getNumber();
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317 | if (processPercent && n < 1.0) {
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318 | return n * viewPort.computeSize(axis);
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319 | }
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320 | return n;
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321 | }
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322 | }
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323 | }
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324 | getMilliseconds() {
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325 | if (!this.hasValue()) {
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326 | return 0;
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327 | }
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328 | if (this.isString(/ms$/)) {
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329 | return this.getNumber();
|
330 | }
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331 | return this.getNumber() * 1000;
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332 | }
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333 | getRadians() {
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334 | if (!this.hasValue()) {
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335 | return 0;
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336 | }
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337 | switch (true) {
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338 | case this.isString(/deg$/):
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339 | return this.getNumber() * (Math.PI / 180.0);
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340 | case this.isString(/grad$/):
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341 | return this.getNumber() * (Math.PI / 200.0);
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342 | case this.isString(/rad$/):
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343 | return this.getNumber();
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344 | default:
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345 | return this.getNumber() * (Math.PI / 180.0);
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346 | }
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347 | }
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348 | getDefinition() {
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349 | const asString = this.getString();
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350 | let name = asString.match(/#([^\)'"]+)/);
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351 | if (name) {
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352 | name = name[1];
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353 | }
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354 | if (!name) {
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355 | name = asString;
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356 | }
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357 | return this.document.definitions[name];
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358 | }
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359 | getFillStyleDefinition(element, opacity) {
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360 | let def = this.getDefinition();
|
361 | if (!def) {
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362 | return null;
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363 | }
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364 |
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365 | if (typeof def.createGradient === 'function') {
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366 | return def.createGradient(this.document.ctx, element, opacity);
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367 | }
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368 |
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369 | if (typeof def.createPattern === 'function') {
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370 | if (def.getHrefAttribute().hasValue()) {
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371 | const patternTransform = def.getAttribute('patternTransform');
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372 | def = def.getHrefAttribute().getDefinition();
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373 | if (patternTransform.hasValue()) {
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374 | def.getAttribute('patternTransform', true).setValue(patternTransform.value);
|
375 | }
|
376 | }
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377 | return def.createPattern(this.document.ctx, element, opacity);
|
378 | }
|
379 | return null;
|
380 | }
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381 | getTextBaseline() {
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382 | if (!this.hasValue()) {
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383 | return null;
|
384 | }
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385 | return Property.textBaselineMapping[this.getString()];
|
386 | }
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387 | addOpacity(opacity) {
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388 | let value = this.getColor();
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389 | const len = value.length;
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390 | let commas = 0;
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391 |
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392 | for (let i = 0; i < len; i++) {
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393 | if (value[i] === ',') {
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394 | commas++;
|
395 | }
|
396 | if (commas === 3) {
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397 | break;
|
398 | }
|
399 | }
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400 | if (opacity.hasValue() && this.isString() && commas !== 3) {
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401 | const color = new RGBColor(value);
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402 | if (color.ok) {
|
403 | color.alpha = opacity.getNumber();
|
404 | value = color.toRGBA();
|
405 | }
|
406 | }
|
407 | return new Property(this.document, this.name, value);
|
408 | }
|
409 | }
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410 | Property.textBaselineMapping = {
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411 | 'baseline': 'alphabetic',
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412 | 'before-edge': 'top',
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413 | 'text-before-edge': 'top',
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414 | 'middle': 'middle',
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415 | 'central': 'middle',
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416 | 'after-edge': 'bottom',
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417 | 'text-after-edge': 'bottom',
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418 | 'ideographic': 'ideographic',
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419 | 'alphabetic': 'alphabetic',
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420 | 'hanging': 'hanging',
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421 | 'mathematical': 'alphabetic'
|
422 | };
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423 |
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424 | class ViewPort {
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425 | constructor() {
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426 | this.viewPorts = [];
|
427 | }
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428 | clear() {
|
429 | this.viewPorts = [];
|
430 | }
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431 | setCurrent(width, height) {
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432 | this.viewPorts.push({
|
433 | width,
|
434 | height
|
435 | });
|
436 | }
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437 | removeCurrent() {
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438 | this.viewPorts.pop();
|
439 | }
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440 | getCurrent() {
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441 | const { viewPorts } = this;
|
442 | return viewPorts[viewPorts.length - 1];
|
443 | }
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444 | get width() {
|
445 | return this.getCurrent().width;
|
446 | }
|
447 | get height() {
|
448 | return this.getCurrent().height;
|
449 | }
|
450 | computeSize(d) {
|
451 | if (typeof d === 'number') {
|
452 | return d;
|
453 | }
|
454 | if (d === 'x') {
|
455 | return this.width;
|
456 | }
|
457 | if (d === 'y') {
|
458 | return this.height;
|
459 | }
|
460 | return Math.sqrt(Math.pow(this.width, 2) + Math.pow(this.height, 2)) / Math.sqrt(2);
|
461 | }
|
462 | }
|
463 |
|
464 | class Point {
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465 | constructor(x, y) {
|
466 | this.x = x;
|
467 | this.y = y;
|
468 | }
|
469 | static parse(point, defaultValue = 0) {
|
470 | const [x = defaultValue, y = defaultValue] = toNumbers(point);
|
471 | return new Point(x, y);
|
472 | }
|
473 | static parseScale(scale, defaultValue = 1) {
|
474 | const [x = defaultValue, y = x] = toNumbers(scale);
|
475 | return new Point(x, y);
|
476 | }
|
477 | static parsePath(path) {
|
478 | const points = toNumbers(path);
|
479 | const len = points.length;
|
480 | const pathPoints = [];
|
481 | for (let i = 0; i < len; i += 2) {
|
482 | pathPoints.push(new Point(points[i], points[i + 1]));
|
483 | }
|
484 | return pathPoints;
|
485 | }
|
486 | angleTo(point) {
|
487 | return Math.atan2(point.y - this.y, point.x - this.x);
|
488 | }
|
489 | applyTransform(transform) {
|
490 | const { x, y } = this;
|
491 | const xp = x * transform[0] + y * transform[2] + transform[4];
|
492 | const yp = x * transform[1] + y * transform[3] + transform[5];
|
493 | this.x = xp;
|
494 | this.y = yp;
|
495 | }
|
496 | }
|
497 |
|
498 | class Mouse {
|
499 | constructor(screen) {
|
500 | this.screen = screen;
|
501 | this.working = false;
|
502 | this.events = [];
|
503 | this.eventElements = [];
|
504 | this.onClick = this.onClick.bind(this);
|
505 | this.onMouseMove = this.onMouseMove.bind(this);
|
506 | }
|
507 | isWorking() {
|
508 | return this.working;
|
509 | }
|
510 | start() {
|
511 | if (this.working) {
|
512 | return;
|
513 | }
|
514 | const { screen, onClick, onMouseMove } = this;
|
515 | const canvas = screen.ctx.canvas;
|
516 | canvas.onclick = onClick;
|
517 | canvas.onmousemove = onMouseMove;
|
518 | this.working = true;
|
519 | }
|
520 | stop() {
|
521 | if (!this.working) {
|
522 | return;
|
523 | }
|
524 | const canvas = this.screen.ctx.canvas;
|
525 | this.working = false;
|
526 | canvas.onclick = null;
|
527 | canvas.onmousemove = null;
|
528 | }
|
529 | hasEvents() {
|
530 | return this.working && this.events.length > 0;
|
531 | }
|
532 | runEvents() {
|
533 | if (!this.working) {
|
534 | return;
|
535 | }
|
536 | const { screen: document, events, eventElements } = this;
|
537 | const { style } = document.ctx.canvas;
|
538 | if (style) {
|
539 | style.cursor = '';
|
540 | }
|
541 | events.forEach(({ run }, i) => {
|
542 | let element = eventElements[i];
|
543 | while (element) {
|
544 | run(element);
|
545 | element = element.parent;
|
546 | }
|
547 | });
|
548 |
|
549 | this.events = [];
|
550 | this.eventElements = [];
|
551 | }
|
552 | checkPath(element, ctx) {
|
553 | if (!this.working || !ctx) {
|
554 | return;
|
555 | }
|
556 | const { events, eventElements } = this;
|
557 | events.forEach(({ x, y }, i) => {
|
558 | if (!eventElements[i] && ctx.isPointInPath && ctx.isPointInPath(x, y)) {
|
559 | eventElements[i] = element;
|
560 | }
|
561 | });
|
562 | }
|
563 | checkBoundingBox(element, boundingBox) {
|
564 | if (!this.working || !boundingBox) {
|
565 | return;
|
566 | }
|
567 | const { events, eventElements } = this;
|
568 | events.forEach(({ x, y }, i) => {
|
569 | if (!eventElements[i] && boundingBox.isPointInBox(x, y)) {
|
570 | eventElements[i] = element;
|
571 | }
|
572 | });
|
573 | }
|
574 | mapXY(x, y) {
|
575 | const { window, ctx } = this.screen;
|
576 | const point = new Point(x, y);
|
577 | let element = ctx.canvas;
|
578 | while (element) {
|
579 | point.x -= element.offsetLeft;
|
580 | point.y -= element.offsetTop;
|
581 | element = element.offsetParent;
|
582 | }
|
583 | if (window.scrollX) {
|
584 | point.x += window.scrollX;
|
585 | }
|
586 | if (window.scrollY) {
|
587 | point.y += window.scrollY;
|
588 | }
|
589 | return point;
|
590 | }
|
591 | onClick(evt) {
|
592 | const { x, y } = this.mapXY((evt || event).clientX, (evt || event).clientY);
|
593 | this.events.push({
|
594 | type: 'onclick',
|
595 | x,
|
596 | y,
|
597 | run(event) {
|
598 | if (event.onClick) {
|
599 | event.onClick();
|
600 | }
|
601 | }
|
602 | });
|
603 | }
|
604 | onMouseMove(evt) {
|
605 | const { x, y } = this.mapXY((evt || event).clientX, (evt || event).clientY);
|
606 | this.events.push({
|
607 | type: 'onmousemove',
|
608 | x,
|
609 | y,
|
610 | run(event) {
|
611 | if (event.onMouseMove) {
|
612 | event.onMouseMove();
|
613 | }
|
614 | }
|
615 | });
|
616 | }
|
617 | }
|
618 |
|
619 | const defaultWindow = typeof window !== 'undefined'
|
620 | ? window
|
621 | : null;
|
622 | const defaultFetch = typeof fetch !== 'undefined'
|
623 | ? fetch.bind(void 0)
|
624 | : null;
|
625 | class Screen {
|
626 | constructor(ctx, { fetch = defaultFetch, window = defaultWindow } = {}) {
|
627 | this.ctx = ctx;
|
628 | this.FRAMERATE = 30;
|
629 | this.MAX_VIRTUAL_PIXELS = 30000;
|
630 | this.CLIENT_WIDTH = 800;
|
631 | this.CLIENT_HEIGHT = 600;
|
632 | this.viewPort = new ViewPort();
|
633 | this.mouse = new Mouse(this);
|
634 | this.animations = [];
|
635 | this.waits = [];
|
636 | this.frameDuration = 0;
|
637 | this.isReadyLock = false;
|
638 | this.isFirstRender = true;
|
639 | this.intervalId = null;
|
640 | this.window = window;
|
641 | this.fetch = fetch;
|
642 | }
|
643 | wait(checker) {
|
644 | this.waits.push(checker);
|
645 | }
|
646 | ready() {
|
647 | if (!this.readyPromise) {
|
648 | return Promise.resolve();
|
649 | }
|
650 | return this.readyPromise;
|
651 | }
|
652 | isReady() {
|
653 | if (this.isReadyLock) {
|
654 | return true;
|
655 | }
|
656 | const isReadyLock = this.waits.every(_ => _());
|
657 | if (isReadyLock) {
|
658 | this.waits = [];
|
659 | if (this.resolveReady) {
|
660 | this.resolveReady();
|
661 | }
|
662 | }
|
663 | this.isReadyLock = isReadyLock;
|
664 | return isReadyLock;
|
665 | }
|
666 | setDefaults(ctx) {
|
667 |
|
668 | ctx.strokeStyle = 'rgba(0,0,0,0)';
|
669 | ctx.lineCap = 'butt';
|
670 | ctx.lineJoin = 'miter';
|
671 | ctx.miterLimit = 4;
|
672 | }
|
673 | setViewBox({ document, ctx, aspectRatio, width, desiredWidth, height, desiredHeight, minX = 0, minY = 0, refX, refY, clip = false, clipX = 0, clipY = 0 }) {
|
674 |
|
675 | const cleanAspectRatio = compressSpaces(aspectRatio).replace(/^defer\s/, '');
|
676 | const [aspectRatioAlign, aspectRatioMeetOrSlice] = cleanAspectRatio.split(' ');
|
677 | const align = aspectRatioAlign || 'xMidYMid';
|
678 | const meetOrSlice = aspectRatioMeetOrSlice || 'meet';
|
679 |
|
680 | const scaleX = width / desiredWidth;
|
681 | const scaleY = height / desiredHeight;
|
682 | const scaleMin = Math.min(scaleX, scaleY);
|
683 | const scaleMax = Math.max(scaleX, scaleY);
|
684 | let finalDesiredWidth = desiredWidth;
|
685 | let finalDesiredHeight = desiredHeight;
|
686 | if (meetOrSlice === 'meet') {
|
687 | finalDesiredWidth *= scaleMin;
|
688 | finalDesiredHeight *= scaleMin;
|
689 | }
|
690 | if (meetOrSlice === 'slice') {
|
691 | finalDesiredWidth *= scaleMax;
|
692 | finalDesiredHeight *= scaleMax;
|
693 | }
|
694 | const refXProp = new Property(document, 'refX', refX);
|
695 | const refYProp = new Property(document, 'refY', refY);
|
696 | const hasRefs = refXProp.hasValue() && refYProp.hasValue();
|
697 | if (hasRefs) {
|
698 | ctx.translate(-scaleMin * refXProp.getPixels('x'), -scaleMin * refYProp.getPixels('y'));
|
699 | }
|
700 | if (clip) {
|
701 | const scaledClipX = scaleMin * clipX;
|
702 | const scaledClipY = scaleMin * clipY;
|
703 | ctx.beginPath();
|
704 | ctx.moveTo(scaledClipX, scaledClipY);
|
705 | ctx.lineTo(width, scaledClipY);
|
706 | ctx.lineTo(width, height);
|
707 | ctx.lineTo(scaledClipX, height);
|
708 | ctx.closePath();
|
709 | ctx.clip();
|
710 | }
|
711 | if (!hasRefs) {
|
712 | const isMeetMinY = meetOrSlice === 'meet' && scaleMin === scaleY;
|
713 | const isSliceMaxY = meetOrSlice === 'slice' && scaleMax === scaleY;
|
714 | const isMeetMinX = meetOrSlice === 'meet' && scaleMin === scaleX;
|
715 | const isSliceMaxX = meetOrSlice === 'slice' && scaleMax === scaleX;
|
716 | if (/^xMid/.test(align) && (isMeetMinY || isSliceMaxY)) {
|
717 | ctx.translate(width / 2.0 - finalDesiredWidth / 2.0, 0);
|
718 | }
|
719 | if (/YMid$/.test(align) && (isMeetMinX || isSliceMaxX)) {
|
720 | ctx.translate(0, height / 2.0 - finalDesiredHeight / 2.0);
|
721 | }
|
722 | if (/^xMax/.test(align) && (isMeetMinY || isSliceMaxY)) {
|
723 | ctx.translate(width - finalDesiredWidth, 0);
|
724 | }
|
725 | if (/YMax$/.test(align) && (isMeetMinX || isSliceMaxX)) {
|
726 | ctx.translate(0, height - finalDesiredHeight);
|
727 | }
|
728 | }
|
729 |
|
730 | switch (true) {
|
731 | case align === 'none':
|
732 | ctx.scale(scaleX, scaleY);
|
733 | break;
|
734 | case meetOrSlice === 'meet':
|
735 | ctx.scale(scaleMin, scaleMin);
|
736 | break;
|
737 | case meetOrSlice === 'slice':
|
738 | ctx.scale(scaleMax, scaleMax);
|
739 | break;
|
740 | }
|
741 |
|
742 | ctx.translate(-minX, -minY);
|
743 | }
|
744 | start(element, { enableRedraw = false, ignoreMouse = false, ignoreAnimation = false, ignoreDimensions = false, ignoreClear = false, forceRedraw, scaleWidth, scaleHeight, offsetX, offsetY } = {}) {
|
745 | const { FRAMERATE, mouse } = this;
|
746 | const frameDuration = 1000 / FRAMERATE;
|
747 | this.frameDuration = frameDuration;
|
748 | this.readyPromise = new Promise((resolve) => {
|
749 | this.resolveReady = resolve;
|
750 | });
|
751 | if (this.isReady()) {
|
752 | this.render(element, ignoreDimensions, ignoreClear, scaleWidth, scaleHeight, offsetX, offsetY);
|
753 | }
|
754 | if (!enableRedraw) {
|
755 | return;
|
756 | }
|
757 | let now = Date.now();
|
758 | let then = now;
|
759 | let delta = 0;
|
760 | const tick = () => {
|
761 | now = Date.now();
|
762 | delta = now - then;
|
763 | if (delta >= frameDuration) {
|
764 | then = now - (delta % frameDuration);
|
765 | if (this.shouldUpdate(ignoreAnimation, forceRedraw)) {
|
766 | this.render(element, ignoreDimensions, ignoreClear, scaleWidth, scaleHeight, offsetX, offsetY);
|
767 | mouse.runEvents();
|
768 | }
|
769 | }
|
770 | this.intervalId = requestAnimationFrame(tick);
|
771 | };
|
772 | if (!ignoreMouse) {
|
773 | mouse.start();
|
774 | }
|
775 | this.intervalId = requestAnimationFrame(tick);
|
776 | }
|
777 | stop() {
|
778 | if (this.intervalId) {
|
779 | requestAnimationFrame.cancel(this.intervalId);
|
780 | this.intervalId = null;
|
781 | }
|
782 | this.mouse.stop();
|
783 | }
|
784 | shouldUpdate(ignoreAnimation, forceRedraw) {
|
785 |
|
786 | if (!ignoreAnimation) {
|
787 | const { frameDuration } = this;
|
788 | const shouldUpdate = this.animations.reduce((shouldUpdate, animation) => animation.update(frameDuration) || shouldUpdate, false);
|
789 | if (shouldUpdate) {
|
790 | return true;
|
791 | }
|
792 | }
|
793 |
|
794 | if (typeof forceRedraw === 'function' && forceRedraw()) {
|
795 | return true;
|
796 | }
|
797 | if (!this.isReadyLock && this.isReady()) {
|
798 | return true;
|
799 | }
|
800 |
|
801 | if (this.mouse.hasEvents()) {
|
802 | return true;
|
803 | }
|
804 | return false;
|
805 | }
|
806 | render(element, ignoreDimensions, ignoreClear, scaleWidth, scaleHeight, offsetX, offsetY) {
|
807 | const { CLIENT_WIDTH, CLIENT_HEIGHT, viewPort, ctx, isFirstRender } = this;
|
808 | const canvas = ctx.canvas;
|
809 | viewPort.clear();
|
810 | if (canvas.width && canvas.height) {
|
811 | viewPort.setCurrent(canvas.width, canvas.height);
|
812 | }
|
813 | else {
|
814 | viewPort.setCurrent(CLIENT_WIDTH, CLIENT_HEIGHT);
|
815 | }
|
816 | const widthStyle = element.getStyle('width');
|
817 | const heightStyle = element.getStyle('height');
|
818 | if (!ignoreDimensions && (isFirstRender
|
819 | || typeof scaleWidth !== 'number' && typeof scaleHeight !== 'number')) {
|
820 |
|
821 | if (widthStyle.hasValue()) {
|
822 | canvas.width = widthStyle.getPixels('x');
|
823 | if (canvas.style) {
|
824 | canvas.style.width = `${canvas.width}px`;
|
825 | }
|
826 | }
|
827 | if (heightStyle.hasValue()) {
|
828 | canvas.height = heightStyle.getPixels('y');
|
829 | if (canvas.style) {
|
830 | canvas.style.height = `${canvas.height}px`;
|
831 | }
|
832 | }
|
833 | }
|
834 | let cWidth = canvas.clientWidth || canvas.width;
|
835 | let cHeight = canvas.clientHeight || canvas.height;
|
836 | if (ignoreDimensions && widthStyle.hasValue() && heightStyle.hasValue()) {
|
837 | cWidth = widthStyle.getPixels('x');
|
838 | cHeight = heightStyle.getPixels('y');
|
839 | }
|
840 | viewPort.setCurrent(cWidth, cHeight);
|
841 | if (typeof offsetX === 'number') {
|
842 | element.getAttribute('x', true).setValue(offsetX);
|
843 | }
|
844 | if (typeof offsetY === 'number') {
|
845 | element.getAttribute('y', true).setValue(offsetY);
|
846 | }
|
847 | if (typeof scaleWidth === 'number'
|
848 | || typeof scaleHeight === 'number') {
|
849 | const viewBox = toNumbers(element.getAttribute('viewBox').getString());
|
850 | let xRatio = 0;
|
851 | let yRatio = 0;
|
852 | if (typeof scaleWidth === 'number') {
|
853 | const widthStyle = element.getStyle('width');
|
854 | if (widthStyle.hasValue()) {
|
855 | xRatio = widthStyle.getPixels('x') / scaleWidth;
|
856 | }
|
857 | else if (!isNaN(viewBox[2])) {
|
858 | xRatio = viewBox[2] / scaleWidth;
|
859 | }
|
860 | }
|
861 | if (typeof scaleHeight === 'number') {
|
862 | const heightStyle = element.getStyle('height');
|
863 | if (heightStyle.hasValue()) {
|
864 | yRatio = heightStyle.getPixels('y') / scaleHeight;
|
865 | }
|
866 | else if (!isNaN(viewBox[3])) {
|
867 | yRatio = viewBox[3] / scaleHeight;
|
868 | }
|
869 | }
|
870 | if (!xRatio) {
|
871 | xRatio = yRatio;
|
872 | }
|
873 | if (!yRatio) {
|
874 | yRatio = xRatio;
|
875 | }
|
876 | element.getAttribute('width', true).setValue(scaleWidth);
|
877 | element.getAttribute('height', true).setValue(scaleHeight);
|
878 | const transformStyle = element.getStyle('transform', true, true);
|
879 | transformStyle.setValue(`${transformStyle.getString()} scale(${1.0 / xRatio}, ${1.0 / yRatio})`);
|
880 | }
|
881 |
|
882 | if (!ignoreClear) {
|
883 | ctx.clearRect(0, 0, cWidth, cHeight);
|
884 | }
|
885 | element.render(ctx);
|
886 | if (isFirstRender) {
|
887 | this.isFirstRender = false;
|
888 | }
|
889 | }
|
890 | }
|
891 | Screen.defaultWindow = defaultWindow;
|
892 | Screen.defaultFetch = defaultFetch;
|
893 |
|
894 | const { defaultFetch: defaultFetch$1 } = Screen;
|
895 | const DefaultDOMParser = typeof DOMParser !== 'undefined'
|
896 | ? DOMParser
|
897 | : null;
|
898 | class Parser {
|
899 | constructor({ fetch = defaultFetch$1, DOMParser = DefaultDOMParser } = {}) {
|
900 | this.fetch = fetch;
|
901 | this.DOMParser = DOMParser;
|
902 | }
|
903 | async parse(resource) {
|
904 | if (/^</.test(resource)) {
|
905 | return this.parseFromString(resource);
|
906 | }
|
907 | return this.load(resource);
|
908 | }
|
909 | parseFromString(xml) {
|
910 | const parser = new this.DOMParser();
|
911 | try {
|
912 | return this.checkDocument(parser.parseFromString(xml, 'image/svg+xml'));
|
913 | }
|
914 | catch (err) {
|
915 | return this.checkDocument(parser.parseFromString(xml, 'text/xml'));
|
916 | }
|
917 | }
|
918 | checkDocument(document) {
|
919 | const parserError = document.getElementsByTagName('parsererror')[0];
|
920 | if (parserError) {
|
921 | throw new Error(parserError.textContent);
|
922 | }
|
923 | return document;
|
924 | }
|
925 | async load(url) {
|
926 | const response = await this.fetch(url);
|
927 | const xml = await response.text();
|
928 | return this.parseFromString(xml);
|
929 | }
|
930 | }
|
931 |
|
932 | class Translate {
|
933 | constructor(_, point) {
|
934 | this.type = 'translate';
|
935 | this.point = null;
|
936 | this.point = Point.parse(point);
|
937 | }
|
938 | apply(ctx) {
|
939 | const { x, y } = this.point;
|
940 | ctx.translate(x || 0.0, y || 0.0);
|
941 | }
|
942 | unapply(ctx) {
|
943 | const { x, y } = this.point;
|
944 | ctx.translate(-1.0 * x || 0.0, -1.0 * y || 0.0);
|
945 | }
|
946 | applyToPoint(point) {
|
947 | const { x, y } = this.point;
|
948 | point.applyTransform([
|
949 | 1,
|
950 | 0,
|
951 | 0,
|
952 | 1,
|
953 | x || 0.0,
|
954 | y || 0.0
|
955 | ]);
|
956 | }
|
957 | }
|
958 |
|
959 | class Rotate {
|
960 | constructor(document, rotate, transformOrigin) {
|
961 | this.type = 'rotate';
|
962 | this.angle = null;
|
963 | this.originX = null;
|
964 | this.originY = null;
|
965 | this.cx = 0;
|
966 | this.cy = 0;
|
967 | const numbers = toNumbers(rotate);
|
968 | this.angle = new Property(document, 'angle', numbers[0]);
|
969 | this.originX = transformOrigin[0];
|
970 | this.originY = transformOrigin[1];
|
971 | this.cx = numbers[1] || 0;
|
972 | this.cy = numbers[2] || 0;
|
973 | }
|
974 | apply(ctx) {
|
975 | const { cx, cy, originX, originY, angle } = this;
|
976 | const x = cx + originX.getPixels('x');
|
977 | const y = cy + originY.getPixels('y');
|
978 | ctx.translate(x, y);
|
979 | ctx.rotate(angle.getRadians());
|
980 | ctx.translate(-x, -y);
|
981 | }
|
982 | unapply(ctx) {
|
983 | const { cx, cy, angle } = this;
|
984 | ctx.translate(cx, cy);
|
985 | ctx.rotate(-1.0 * angle.getRadians());
|
986 | ctx.translate(-cx, -cy);
|
987 | }
|
988 | applyToPoint(point) {
|
989 | const { cx, cy, angle } = this;
|
990 | const rad = angle.getRadians();
|
991 | point.applyTransform([
|
992 | 1,
|
993 | 0,
|
994 | 0,
|
995 | 1,
|
996 | cx || 0.0,
|
997 | cy || 0.0
|
998 | ]);
|
999 | point.applyTransform([
|
1000 | Math.cos(rad),
|
1001 | Math.sin(rad),
|
1002 | -Math.sin(rad),
|
1003 | Math.cos(rad),
|
1004 | 0,
|
1005 | 0
|
1006 | ]);
|
1007 | point.applyTransform([
|
1008 | 1,
|
1009 | 0,
|
1010 | 0,
|
1011 | 1,
|
1012 | -cx || 0.0,
|
1013 | -cy || 0.0
|
1014 | ]);
|
1015 | }
|
1016 | }
|
1017 |
|
1018 | class Scale {
|
1019 | constructor(_, scale) {
|
1020 | this.type = 'scale';
|
1021 | this.scale = null;
|
1022 | const scaleSize = Point.parseScale(scale);
|
1023 |
|
1024 | if (scaleSize.x === 0
|
1025 | || scaleSize.y === 0) {
|
1026 | scaleSize.x = PSEUDO_ZERO;
|
1027 | scaleSize.y = PSEUDO_ZERO;
|
1028 | }
|
1029 | this.scale = scaleSize;
|
1030 | }
|
1031 | apply(ctx) {
|
1032 | const { x, y } = this.scale;
|
1033 | ctx.scale(x, y || x);
|
1034 | }
|
1035 | unapply(ctx) {
|
1036 | const { x, y } = this.scale;
|
1037 | ctx.scale(1.0 / x, 1.0 / y || x);
|
1038 | }
|
1039 | applyToPoint(point) {
|
1040 | const { x, y } = this.scale;
|
1041 | point.applyTransform([
|
1042 | x || 0.0,
|
1043 | 0,
|
1044 | 0,
|
1045 | y || 0.0,
|
1046 | 0,
|
1047 | 0
|
1048 | ]);
|
1049 | }
|
1050 | }
|
1051 |
|
1052 | class Matrix {
|
1053 | constructor(_, matrix) {
|
1054 | this.type = 'matrix';
|
1055 | this.matrix = [];
|
1056 | this.matrix = toNumbers(matrix);
|
1057 | }
|
1058 | apply(ctx) {
|
1059 | const { matrix } = this;
|
1060 | ctx.transform(matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5]);
|
1061 | }
|
1062 | unapply(ctx) {
|
1063 | const { matrix } = this;
|
1064 | const a = matrix[0];
|
1065 | const b = matrix[2];
|
1066 | const c = matrix[4];
|
1067 | const d = matrix[1];
|
1068 | const e = matrix[3];
|
1069 | const f = matrix[5];
|
1070 | const g = 0.0;
|
1071 | const h = 0.0;
|
1072 | const i = 1.0;
|
1073 | const det = 1 / (a * (e * i - f * h) - b * (d * i - f * g) + c * (d * h - e * g));
|
1074 | ctx.transform(det * (e * i - f * h), det * (f * g - d * i), det * (c * h - b * i), det * (a * i - c * g), det * (b * f - c * e), det * (c * d - a * f));
|
1075 | }
|
1076 | applyToPoint(point) {
|
1077 | point.applyTransform(this.matrix);
|
1078 | }
|
1079 | }
|
1080 |
|
1081 | class Skew extends Matrix {
|
1082 | constructor(document, skew) {
|
1083 | super(document, skew);
|
1084 | this.type = 'skew';
|
1085 | this.angle = null;
|
1086 | this.angle = new Property(document, 'angle', skew);
|
1087 | }
|
1088 | }
|
1089 |
|
1090 | class SkewX extends Skew {
|
1091 | constructor(document, skew) {
|
1092 | super(document, skew);
|
1093 | this.type = 'skewX';
|
1094 | this.matrix = [
|
1095 | 1,
|
1096 | 0,
|
1097 | Math.tan(this.angle.getRadians()),
|
1098 | 1,
|
1099 | 0,
|
1100 | 0
|
1101 | ];
|
1102 | }
|
1103 | }
|
1104 |
|
1105 | class SkewY extends Skew {
|
1106 | constructor(document, skew) {
|
1107 | super(document, skew);
|
1108 | this.type = 'skewY';
|
1109 | this.matrix = [
|
1110 | 1,
|
1111 | Math.tan(this.angle.getRadians()),
|
1112 | 0,
|
1113 | 1,
|
1114 | 0,
|
1115 | 0
|
1116 | ];
|
1117 | }
|
1118 | }
|
1119 |
|
1120 | function parseTransforms(transform) {
|
1121 | return compressSpaces(transform)
|
1122 | .trim()
|
1123 | .replace(/\)([a-zA-Z])/g, ') $1')
|
1124 | .replace(/\)(\s?,\s?)/g, ') ')
|
1125 | .split(/\s(?=[a-z])/);
|
1126 | }
|
1127 | function parseTransform(transform) {
|
1128 | const [type, value] = transform.split('(');
|
1129 | return [
|
1130 | type.trim(),
|
1131 | value.trim().replace(')', '')
|
1132 | ];
|
1133 | }
|
1134 | class Transform {
|
1135 | constructor(document, transform, transformOrigin) {
|
1136 | this.document = document;
|
1137 | this.transforms = [];
|
1138 | const data = parseTransforms(transform);
|
1139 | data.forEach((transform) => {
|
1140 | if (transform === 'none') {
|
1141 | return;
|
1142 | }
|
1143 | const [type, value] = parseTransform(transform);
|
1144 | const TransformType = Transform.transformTypes[type];
|
1145 | if (typeof TransformType !== 'undefined') {
|
1146 | this.transforms.push(new TransformType(this.document, value, transformOrigin));
|
1147 | }
|
1148 | });
|
1149 | }
|
1150 | static fromElement(document, element) {
|
1151 | const transformStyle = element.getStyle('transform', false, true);
|
1152 | const [transformOriginXProperty, transformOriginYProperty = transformOriginXProperty] = element.getStyle('transform-origin', false, true).split();
|
1153 | const transformOrigin = [
|
1154 | transformOriginXProperty,
|
1155 | transformOriginYProperty
|
1156 | ];
|
1157 | if (transformStyle.hasValue()) {
|
1158 | return new Transform(document, transformStyle.getString(), transformOrigin);
|
1159 | }
|
1160 | return null;
|
1161 | }
|
1162 | apply(ctx) {
|
1163 | const { transforms } = this;
|
1164 | const len = transforms.length;
|
1165 | for (let i = 0; i < len; i++) {
|
1166 | transforms[i].apply(ctx);
|
1167 | }
|
1168 | }
|
1169 | unapply(ctx) {
|
1170 | const { transforms } = this;
|
1171 | const len = transforms.length;
|
1172 | for (let i = len - 1; i >= 0; i--) {
|
1173 | transforms[i].unapply(ctx);
|
1174 | }
|
1175 | }
|
1176 |
|
1177 | applyToPoint(point) {
|
1178 | const { transforms } = this;
|
1179 | const len = transforms.length;
|
1180 | for (let i = 0; i < len; i++) {
|
1181 | transforms[i].applyToPoint(point);
|
1182 | }
|
1183 | }
|
1184 | }
|
1185 | Transform.transformTypes = {
|
1186 | translate: Translate,
|
1187 | rotate: Rotate,
|
1188 | scale: Scale,
|
1189 | matrix: Matrix,
|
1190 | skewX: SkewX,
|
1191 | skewY: SkewY
|
1192 | };
|
1193 |
|
1194 | class Element {
|
1195 | constructor(document, node, captureTextNodes = false) {
|
1196 | this.document = document;
|
1197 | this.node = node;
|
1198 | this.captureTextNodes = captureTextNodes;
|
1199 | this.attributes = {};
|
1200 | this.styles = {};
|
1201 | this.stylesSpecificity = {};
|
1202 | this.animationFrozen = false;
|
1203 | this.animationFrozenValue = '';
|
1204 | this.parent = null;
|
1205 | this.children = [];
|
1206 | if (!node || node.nodeType !== 1) {
|
1207 | return;
|
1208 | }
|
1209 |
|
1210 | Array.from(node.attributes).forEach((attribute) => {
|
1211 | const nodeName = normalizeAttributeName(attribute.nodeName);
|
1212 | this.attributes[nodeName] = new Property(document, nodeName, attribute.value);
|
1213 | });
|
1214 | this.addStylesFromStyleDefinition();
|
1215 |
|
1216 | if (this.getAttribute('style').hasValue()) {
|
1217 | const styles = this.getAttribute('style')
|
1218 | .getString()
|
1219 | .split(';')
|
1220 | .map(_ => _.trim());
|
1221 | styles.forEach((style) => {
|
1222 | if (!style) {
|
1223 | return;
|
1224 | }
|
1225 | const [name, value] = style.split(':').map(_ => _.trim());
|
1226 | this.styles[name] = new Property(document, name, value);
|
1227 | });
|
1228 | }
|
1229 | const { definitions } = document;
|
1230 | const id = this.getAttribute('id');
|
1231 |
|
1232 | if (id.hasValue()) {
|
1233 | if (!definitions[id.getValue()]) {
|
1234 | definitions[id.getValue()] = this;
|
1235 | }
|
1236 | }
|
1237 | Array.from(node.childNodes).forEach((childNode) => {
|
1238 | if (childNode.nodeType === 1) {
|
1239 | this.addChild(childNode);
|
1240 | }
|
1241 | else if (captureTextNodes && (childNode.nodeType === 3
|
1242 | || childNode.nodeType === 4)) {
|
1243 | const textNode = document.createTextNode(childNode);
|
1244 | if (textNode.getText().length > 0) {
|
1245 | this.addChild(textNode);
|
1246 | }
|
1247 | }
|
1248 | });
|
1249 | }
|
1250 | getAttribute(name, createIfNotExists = false) {
|
1251 | const attr = this.attributes[name];
|
1252 | if (!attr && createIfNotExists) {
|
1253 | const attr = new Property(this.document, name, '');
|
1254 | this.attributes[name] = attr;
|
1255 | return attr;
|
1256 | }
|
1257 | return attr || Property.empty(this.document);
|
1258 | }
|
1259 | getHrefAttribute() {
|
1260 | for (const key in this.attributes) {
|
1261 | if (key === 'href' || /:href$/.test(key)) {
|
1262 | return this.attributes[key];
|
1263 | }
|
1264 | }
|
1265 | return Property.empty(this.document);
|
1266 | }
|
1267 | getStyle(name, createIfNotExists = false, skipAncestors = false) {
|
1268 | const style = this.styles[name];
|
1269 | if (style) {
|
1270 | return style;
|
1271 | }
|
1272 | const attr = this.getAttribute(name);
|
1273 | if (attr && attr.hasValue()) {
|
1274 | this.styles[name] = attr;
|
1275 | return attr;
|
1276 | }
|
1277 | if (!skipAncestors) {
|
1278 | const { parent } = this;
|
1279 | if (parent) {
|
1280 | const parentStyle = parent.getStyle(name);
|
1281 | if (parentStyle && parentStyle.hasValue()) {
|
1282 | return parentStyle;
|
1283 | }
|
1284 | }
|
1285 | }
|
1286 | if (createIfNotExists) {
|
1287 | const style = new Property(this.document, name, '');
|
1288 | this.styles[name] = style;
|
1289 | return style;
|
1290 | }
|
1291 | return style || Property.empty(this.document);
|
1292 | }
|
1293 | render(ctx) {
|
1294 |
|
1295 |
|
1296 | if (this.getStyle('display').getString() === 'none'
|
1297 | || this.getStyle('visibility').getString() === 'hidden') {
|
1298 | return;
|
1299 | }
|
1300 | ctx.save();
|
1301 | if (this.getStyle('mask').hasValue()) {
|
1302 | const mask = this.getStyle('mask').getDefinition();
|
1303 | if (mask) {
|
1304 | this.applyEffects(ctx);
|
1305 | mask.apply(ctx, this);
|
1306 | }
|
1307 | }
|
1308 | else if (this.getStyle('filter').getValue('none') !== 'none') {
|
1309 | const filter = this.getStyle('filter').getDefinition();
|
1310 | if (filter) {
|
1311 | this.applyEffects(ctx);
|
1312 | filter.apply(ctx, this);
|
1313 | }
|
1314 | }
|
1315 | else {
|
1316 | this.setContext(ctx);
|
1317 | this.renderChildren(ctx);
|
1318 | this.clearContext(ctx);
|
1319 | }
|
1320 | ctx.restore();
|
1321 | }
|
1322 | setContext(_) { }
|
1323 | applyEffects(ctx) {
|
1324 |
|
1325 | const transform = Transform.fromElement(this.document, this);
|
1326 | if (transform) {
|
1327 | transform.apply(ctx);
|
1328 | }
|
1329 |
|
1330 | const clipPathStyleProp = this.getStyle('clip-path', false, true);
|
1331 | if (clipPathStyleProp.hasValue()) {
|
1332 | const clip = clipPathStyleProp.getDefinition();
|
1333 | if (clip) {
|
1334 | clip.apply(ctx);
|
1335 | }
|
1336 | }
|
1337 | }
|
1338 | clearContext(_) { }
|
1339 | renderChildren(ctx) {
|
1340 | this.children.forEach((child) => {
|
1341 | child.render(ctx);
|
1342 | });
|
1343 | }
|
1344 | addChild(childNode) {
|
1345 | const child = childNode instanceof Element
|
1346 | ? childNode
|
1347 | : this.document.createElement(childNode);
|
1348 | child.parent = this;
|
1349 | if (!Element.ignoreChildTypes.includes(child.type)) {
|
1350 | this.children.push(child);
|
1351 | }
|
1352 | }
|
1353 | matchesSelector(selector) {
|
1354 | const { node } = this;
|
1355 | if (typeof node.matches === 'function') {
|
1356 | return node.matches(selector);
|
1357 | }
|
1358 | const styleClasses = node.getAttribute('class');
|
1359 | if (!styleClasses || styleClasses === '') {
|
1360 | return false;
|
1361 | }
|
1362 | return styleClasses.split(' ').some((styleClass) => {
|
1363 | if (`.${styleClass}` === selector) {
|
1364 | return true;
|
1365 | }
|
1366 | });
|
1367 | }
|
1368 | addStylesFromStyleDefinition() {
|
1369 | const { styles, stylesSpecificity } = this.document;
|
1370 | for (const selector in styles) {
|
1371 | if (selector[0] !== '@' && this.matchesSelector(selector)) {
|
1372 | const style = styles[selector];
|
1373 | const specificity = stylesSpecificity[selector];
|
1374 | if (style) {
|
1375 | for (const name in style) {
|
1376 | let existingSpecificity = this.stylesSpecificity[name];
|
1377 | if (typeof existingSpecificity === 'undefined') {
|
1378 | existingSpecificity = '000';
|
1379 | }
|
1380 | if (specificity >= existingSpecificity) {
|
1381 | this.styles[name] = style[name];
|
1382 | this.stylesSpecificity[name] = specificity;
|
1383 | }
|
1384 | }
|
1385 | }
|
1386 | }
|
1387 | }
|
1388 | }
|
1389 | removeStyles(element, ignoreStyles) {
|
1390 | const toRestore = ignoreStyles.reduce((toRestore, name) => {
|
1391 | const styleProp = element.getStyle(name);
|
1392 | if (!styleProp.hasValue()) {
|
1393 | return toRestore;
|
1394 | }
|
1395 | const value = styleProp.getString();
|
1396 | styleProp.setValue('');
|
1397 | return [
|
1398 | ...toRestore,
|
1399 | [name, value]
|
1400 | ];
|
1401 | }, []);
|
1402 | return toRestore;
|
1403 | }
|
1404 | restoreStyles(element, styles) {
|
1405 | styles.forEach(([name, value]) => {
|
1406 | element.getStyle(name, true).setValue(value);
|
1407 | });
|
1408 | }
|
1409 | }
|
1410 | Element.ignoreChildTypes = [
|
1411 | 'title'
|
1412 | ];
|
1413 |
|
1414 | class UnknownElement extends Element {
|
1415 | constructor(document, node, captureTextNodes) {
|
1416 | super(document, node, captureTextNodes);
|
1417 | }
|
1418 | }
|
1419 |
|
1420 | function wrapFontFamily(fontFamily) {
|
1421 | const trimmed = fontFamily.trim();
|
1422 | return /^('|")/.test(trimmed)
|
1423 | ? trimmed
|
1424 | : `"${trimmed}"`;
|
1425 | }
|
1426 | function prepareFontFamily(fontFamily) {
|
1427 | return typeof process === 'undefined'
|
1428 | ? fontFamily
|
1429 | : fontFamily
|
1430 | .trim()
|
1431 | .split(',')
|
1432 | .map(wrapFontFamily)
|
1433 | .join(',');
|
1434 | }
|
1435 |
|
1436 |
|
1437 |
|
1438 | function prepareFontStyle(fontStyle) {
|
1439 | if (!fontStyle) {
|
1440 | return '';
|
1441 | }
|
1442 | const targetFontStyle = fontStyle.trim().toLowerCase();
|
1443 | switch (targetFontStyle) {
|
1444 | case 'normal':
|
1445 | case 'italic':
|
1446 | case 'oblique':
|
1447 | case 'inherit':
|
1448 | case 'initial':
|
1449 | case 'unset':
|
1450 | return targetFontStyle;
|
1451 | default:
|
1452 | if (/^oblique\s+(-|)\d+deg$/.test(targetFontStyle)) {
|
1453 | return targetFontStyle;
|
1454 | }
|
1455 | return '';
|
1456 | }
|
1457 | }
|
1458 |
|
1459 |
|
1460 |
|
1461 | function prepareFontWeight(fontWeight) {
|
1462 | if (!fontWeight) {
|
1463 | return '';
|
1464 | }
|
1465 | const targetFontWeight = fontWeight.trim().toLowerCase();
|
1466 | switch (targetFontWeight) {
|
1467 | case 'normal':
|
1468 | case 'bold':
|
1469 | case 'lighter':
|
1470 | case 'bolder':
|
1471 | case 'inherit':
|
1472 | case 'initial':
|
1473 | case 'unset':
|
1474 | return targetFontWeight;
|
1475 | default:
|
1476 | if (/^[\d.]+$/.test(targetFontWeight)) {
|
1477 | return targetFontWeight;
|
1478 | }
|
1479 | return '';
|
1480 | }
|
1481 | }
|
1482 | class Font {
|
1483 | constructor(fontStyle, fontVariant, fontWeight, fontSize, fontFamily, inherit) {
|
1484 | const inheritFont = inherit
|
1485 | ? typeof inherit === 'string'
|
1486 | ? Font.parse(inherit)
|
1487 | : inherit
|
1488 | : {};
|
1489 | this.fontFamily = fontFamily || inheritFont.fontFamily;
|
1490 | this.fontSize = fontSize || inheritFont.fontSize;
|
1491 | this.fontStyle = fontStyle || inheritFont.fontStyle;
|
1492 | this.fontWeight = fontWeight || inheritFont.fontWeight;
|
1493 | this.fontVariant = fontVariant || inheritFont.fontVariant;
|
1494 | }
|
1495 | static parse(font = '', inherit) {
|
1496 | let fontStyle = '';
|
1497 | let fontVariant = '';
|
1498 | let fontWeight = '';
|
1499 | let fontSize = '';
|
1500 | let fontFamily = '';
|
1501 | const parts = compressSpaces(font).trim().split(' ');
|
1502 | const set = {
|
1503 | fontSize: false,
|
1504 | fontStyle: false,
|
1505 | fontWeight: false,
|
1506 | fontVariant: false
|
1507 | };
|
1508 | parts.forEach((part) => {
|
1509 | switch (true) {
|
1510 | case !set.fontStyle && Font.styles.includes(part):
|
1511 | if (part !== 'inherit') {
|
1512 | fontStyle = part;
|
1513 | }
|
1514 | set.fontStyle = true;
|
1515 | break;
|
1516 | case !set.fontVariant && Font.variants.includes(part):
|
1517 | if (part !== 'inherit') {
|
1518 | fontVariant = part;
|
1519 | }
|
1520 | set.fontStyle = true;
|
1521 | set.fontVariant = true;
|
1522 | break;
|
1523 | case !set.fontWeight && Font.weights.includes(part):
|
1524 | if (part !== 'inherit') {
|
1525 | fontWeight = part;
|
1526 | }
|
1527 | set.fontStyle = true;
|
1528 | set.fontVariant = true;
|
1529 | set.fontWeight = true;
|
1530 | break;
|
1531 | case !set.fontSize:
|
1532 | if (part !== 'inherit') {
|
1533 | [fontSize] = part.split('/');
|
1534 | }
|
1535 | set.fontStyle = true;
|
1536 | set.fontVariant = true;
|
1537 | set.fontWeight = true;
|
1538 | set.fontSize = true;
|
1539 | break;
|
1540 | default:
|
1541 | if (part !== 'inherit') {
|
1542 | fontFamily += part;
|
1543 | }
|
1544 | }
|
1545 | });
|
1546 | return new Font(fontStyle, fontVariant, fontWeight, fontSize, fontFamily, inherit);
|
1547 | }
|
1548 | toString() {
|
1549 | return [
|
1550 | prepareFontStyle(this.fontStyle),
|
1551 | this.fontVariant,
|
1552 | prepareFontWeight(this.fontWeight),
|
1553 | this.fontSize,
|
1554 |
|
1555 | prepareFontFamily(this.fontFamily)
|
1556 | ].join(' ').trim();
|
1557 | }
|
1558 | }
|
1559 | Font.styles = 'normal|italic|oblique|inherit';
|
1560 | Font.variants = 'normal|small-caps|inherit';
|
1561 | Font.weights = 'normal|bold|bolder|lighter|100|200|300|400|500|600|700|800|900|inherit';
|
1562 |
|
1563 | class BoundingBox {
|
1564 | constructor(x1 = Number.NaN, y1 = Number.NaN, x2 = Number.NaN, y2 = Number.NaN) {
|
1565 | this.x1 = x1;
|
1566 | this.y1 = y1;
|
1567 | this.x2 = x2;
|
1568 | this.y2 = y2;
|
1569 | this.addPoint(x1, y1);
|
1570 | this.addPoint(x2, y2);
|
1571 | }
|
1572 | get x() {
|
1573 | return this.x1;
|
1574 | }
|
1575 | get y() {
|
1576 | return this.y1;
|
1577 | }
|
1578 | get width() {
|
1579 | return this.x2 - this.x1;
|
1580 | }
|
1581 | get height() {
|
1582 | return this.y2 - this.y1;
|
1583 | }
|
1584 | addPoint(x, y) {
|
1585 | if (typeof x !== 'undefined') {
|
1586 | if (isNaN(this.x1) || isNaN(this.x2)) {
|
1587 | this.x1 = x;
|
1588 | this.x2 = x;
|
1589 | }
|
1590 | if (x < this.x1) {
|
1591 | this.x1 = x;
|
1592 | }
|
1593 | if (x > this.x2) {
|
1594 | this.x2 = x;
|
1595 | }
|
1596 | }
|
1597 | if (typeof y !== 'undefined') {
|
1598 | if (isNaN(this.y1) || isNaN(this.y2)) {
|
1599 | this.y1 = y;
|
1600 | this.y2 = y;
|
1601 | }
|
1602 | if (y < this.y1) {
|
1603 | this.y1 = y;
|
1604 | }
|
1605 | if (y > this.y2) {
|
1606 | this.y2 = y;
|
1607 | }
|
1608 | }
|
1609 | }
|
1610 | addX(x) {
|
1611 | this.addPoint(x, null);
|
1612 | }
|
1613 | addY(y) {
|
1614 | this.addPoint(null, y);
|
1615 | }
|
1616 | addBoundingBox(boundingBox) {
|
1617 | if (!boundingBox) {
|
1618 | return;
|
1619 | }
|
1620 | const { x1, y1, x2, y2 } = boundingBox;
|
1621 | this.addPoint(x1, y1);
|
1622 | this.addPoint(x2, y2);
|
1623 | }
|
1624 | sumCubic(t, p0, p1, p2, p3) {
|
1625 | return (Math.pow(1 - t, 3) * p0
|
1626 | + 3 * Math.pow(1 - t, 2) * t * p1
|
1627 | + 3 * (1 - t) * Math.pow(t, 2) * p2
|
1628 | + Math.pow(t, 3) * p3);
|
1629 | }
|
1630 | bezierCurveAdd(forX, p0, p1, p2, p3) {
|
1631 | const b = 6 * p0 - 12 * p1 + 6 * p2;
|
1632 | const a = -3 * p0 + 9 * p1 - 9 * p2 + 3 * p3;
|
1633 | const c = 3 * p1 - 3 * p0;
|
1634 | if (a === 0) {
|
1635 | if (b === 0) {
|
1636 | return;
|
1637 | }
|
1638 | const t = -c / b;
|
1639 | if (0 < t && t < 1) {
|
1640 | if (forX) {
|
1641 | this.addX(this.sumCubic(t, p0, p1, p2, p3));
|
1642 | }
|
1643 | else {
|
1644 | this.addY(this.sumCubic(t, p0, p1, p2, p3));
|
1645 | }
|
1646 | }
|
1647 | return;
|
1648 | }
|
1649 | const b2ac = Math.pow(b, 2) - 4 * c * a;
|
1650 | if (b2ac < 0) {
|
1651 | return;
|
1652 | }
|
1653 | const t1 = (-b + Math.sqrt(b2ac)) / (2 * a);
|
1654 | if (0 < t1 && t1 < 1) {
|
1655 | if (forX) {
|
1656 | this.addX(this.sumCubic(t1, p0, p1, p2, p3));
|
1657 | }
|
1658 | else {
|
1659 | this.addY(this.sumCubic(t1, p0, p1, p2, p3));
|
1660 | }
|
1661 | }
|
1662 | const t2 = (-b - Math.sqrt(b2ac)) / (2 * a);
|
1663 | if (0 < t2 && t2 < 1) {
|
1664 | if (forX) {
|
1665 | this.addX(this.sumCubic(t2, p0, p1, p2, p3));
|
1666 | }
|
1667 | else {
|
1668 | this.addY(this.sumCubic(t2, p0, p1, p2, p3));
|
1669 | }
|
1670 | }
|
1671 | }
|
1672 |
|
1673 | addBezierCurve(p0x, p0y, p1x, p1y, p2x, p2y, p3x, p3y) {
|
1674 | this.addPoint(p0x, p0y);
|
1675 | this.addPoint(p3x, p3y);
|
1676 | this.bezierCurveAdd(true, p0x, p1x, p2x, p3x);
|
1677 | this.bezierCurveAdd(false, p0y, p1y, p2y, p3y);
|
1678 | }
|
1679 | addQuadraticCurve(p0x, p0y, p1x, p1y, p2x, p2y) {
|
1680 | const cp1x = p0x + 2 / 3 * (p1x - p0x);
|
1681 | const cp1y = p0y + 2 / 3 * (p1y - p0y);
|
1682 | const cp2x = cp1x + 1 / 3 * (p2x - p0x);
|
1683 | const cp2y = cp1y + 1 / 3 * (p2y - p0y);
|
1684 | this.addBezierCurve(p0x, p0y, cp1x, cp2x, cp1y, cp2y, p2x, p2y);
|
1685 | }
|
1686 | isPointInBox(x, y) {
|
1687 | const { x1, y1, x2, y2 } = this;
|
1688 | return (x1 <= x
|
1689 | && x <= x2
|
1690 | && y1 <= y
|
1691 | && y <= y2);
|
1692 | }
|
1693 | }
|
1694 |
|
1695 | class RenderedElement extends Element {
|
1696 | constructor() {
|
1697 | super(...arguments);
|
1698 | this.modifiedEmSizeStack = false;
|
1699 | }
|
1700 | calculateOpacity() {
|
1701 | let opacity = 1.0;
|
1702 |
|
1703 | let element = this;
|
1704 | while (element) {
|
1705 | const opacityStyle = element.getStyle('opacity', false, true);
|
1706 | if (opacityStyle.hasValue(true)) {
|
1707 | opacity *= opacityStyle.getNumber();
|
1708 | }
|
1709 | element = element.parent;
|
1710 | }
|
1711 | return opacity;
|
1712 | }
|
1713 | setContext(ctx, fromMeasure = false) {
|
1714 | if (!fromMeasure) {
|
1715 |
|
1716 | const fillStyleProp = this.getStyle('fill');
|
1717 | const fillOpacityStyleProp = this.getStyle('fill-opacity');
|
1718 | const strokeStyleProp = this.getStyle('stroke');
|
1719 | const strokeOpacityProp = this.getStyle('stroke-opacity');
|
1720 | if (fillStyleProp.isUrlDefinition()) {
|
1721 | const fillStyle = fillStyleProp.getFillStyleDefinition(this, fillOpacityStyleProp);
|
1722 | if (fillStyle) {
|
1723 | ctx.fillStyle = fillStyle;
|
1724 | }
|
1725 | }
|
1726 | else if (fillStyleProp.hasValue()) {
|
1727 | if (fillStyleProp.getString() === 'currentColor') {
|
1728 | fillStyleProp.setValue(this.getStyle('color').getColor());
|
1729 | }
|
1730 | const fillStyle = fillStyleProp.getColor();
|
1731 | if (fillStyle !== 'inherit') {
|
1732 | ctx.fillStyle = fillStyle === 'none'
|
1733 | ? 'rgba(0,0,0,0)'
|
1734 | : fillStyle;
|
1735 | }
|
1736 | }
|
1737 | if (fillOpacityStyleProp.hasValue()) {
|
1738 | const fillStyle = new Property(this.document, 'fill', ctx.fillStyle)
|
1739 | .addOpacity(fillOpacityStyleProp)
|
1740 | .getColor();
|
1741 | ctx.fillStyle = fillStyle;
|
1742 | }
|
1743 |
|
1744 | if (strokeStyleProp.isUrlDefinition()) {
|
1745 | const strokeStyle = strokeStyleProp.getFillStyleDefinition(this, strokeOpacityProp);
|
1746 | if (strokeStyle) {
|
1747 | ctx.strokeStyle = strokeStyle;
|
1748 | }
|
1749 | }
|
1750 | else if (strokeStyleProp.hasValue()) {
|
1751 | if (strokeStyleProp.getString() === 'currentColor') {
|
1752 | strokeStyleProp.setValue(this.getStyle('color').getColor());
|
1753 | }
|
1754 | const strokeStyle = strokeStyleProp.getString();
|
1755 | if (strokeStyle !== 'inherit') {
|
1756 | ctx.strokeStyle = strokeStyle === 'none'
|
1757 | ? 'rgba(0,0,0,0)'
|
1758 | : strokeStyle;
|
1759 | }
|
1760 | }
|
1761 | if (strokeOpacityProp.hasValue()) {
|
1762 | const strokeStyle = new Property(this.document, 'stroke', ctx.strokeStyle)
|
1763 | .addOpacity(strokeOpacityProp)
|
1764 | .getString();
|
1765 | ctx.strokeStyle = strokeStyle;
|
1766 | }
|
1767 | const strokeWidthStyleProp = this.getStyle('stroke-width');
|
1768 | if (strokeWidthStyleProp.hasValue()) {
|
1769 | const newLineWidth = strokeWidthStyleProp.getPixels();
|
1770 | ctx.lineWidth = !newLineWidth
|
1771 | ? PSEUDO_ZERO
|
1772 | : newLineWidth;
|
1773 | }
|
1774 | const strokeLinecapStyleProp = this.getStyle('stroke-linecap');
|
1775 | const strokeLinejoinStyleProp = this.getStyle('stroke-linejoin');
|
1776 | const strokeMiterlimitProp = this.getStyle('stroke-miterlimit');
|
1777 | const pointOrderStyleProp = this.getStyle('paint-order');
|
1778 | const strokeDasharrayStyleProp = this.getStyle('stroke-dasharray');
|
1779 | const strokeDashoffsetProp = this.getStyle('stroke-dashoffset');
|
1780 | if (strokeLinecapStyleProp.hasValue()) {
|
1781 | ctx.lineCap = strokeLinecapStyleProp.getString();
|
1782 | }
|
1783 | if (strokeLinejoinStyleProp.hasValue()) {
|
1784 | ctx.lineJoin = strokeLinejoinStyleProp.getString();
|
1785 | }
|
1786 | if (strokeMiterlimitProp.hasValue()) {
|
1787 | ctx.miterLimit = strokeMiterlimitProp.getNumber();
|
1788 | }
|
1789 | if (pointOrderStyleProp.hasValue()) {
|
1790 |
|
1791 | ctx.paintOrder = pointOrderStyleProp.getValue();
|
1792 | }
|
1793 | if (strokeDasharrayStyleProp.hasValue() && strokeDasharrayStyleProp.getString() !== 'none') {
|
1794 | const gaps = toNumbers(strokeDasharrayStyleProp.getString());
|
1795 | if (typeof ctx.setLineDash !== 'undefined') {
|
1796 | ctx.setLineDash(gaps);
|
1797 | }
|
1798 | else if (typeof ctx.webkitLineDash !== 'undefined') {
|
1799 | ctx.webkitLineDash = gaps;
|
1800 | }
|
1801 | else if (typeof ctx.mozDash !== 'undefined' && !(gaps.length === 1 && gaps[0] === 0)) {
|
1802 | ctx.mozDash = gaps;
|
1803 | }
|
1804 | const offset = strokeDashoffsetProp.getPixels();
|
1805 | if (typeof ctx.lineDashOffset !== 'undefined') {
|
1806 | ctx.lineDashOffset = offset;
|
1807 | }
|
1808 | else if (typeof ctx.webkitLineDashOffset !== 'undefined') {
|
1809 | ctx.webkitLineDashOffset = offset;
|
1810 | }
|
1811 | else if (typeof ctx.mozDashOffset !== 'undefined') {
|
1812 | ctx.mozDashOffset = offset;
|
1813 | }
|
1814 | }
|
1815 | }
|
1816 |
|
1817 | this.modifiedEmSizeStack = false;
|
1818 | if (typeof ctx.font !== 'undefined') {
|
1819 | const fontStyleProp = this.getStyle('font');
|
1820 | const fontStyleStyleProp = this.getStyle('font-style');
|
1821 | const fontVariantStyleProp = this.getStyle('font-variant');
|
1822 | const fontWeightStyleProp = this.getStyle('font-weight');
|
1823 | const fontSizeStyleProp = this.getStyle('font-size');
|
1824 | const fontFamilyStyleProp = this.getStyle('font-family');
|
1825 | const font = new Font(fontStyleStyleProp.getString(), fontVariantStyleProp.getString(), fontWeightStyleProp.getString(), fontSizeStyleProp.hasValue()
|
1826 | ? `${fontSizeStyleProp.getPixels(true)}px`
|
1827 | : '', fontFamilyStyleProp.getString(), Font.parse(fontStyleProp.getString(), ctx.font));
|
1828 | fontStyleStyleProp.setValue(font.fontStyle);
|
1829 | fontVariantStyleProp.setValue(font.fontVariant);
|
1830 | fontWeightStyleProp.setValue(font.fontWeight);
|
1831 | fontSizeStyleProp.setValue(font.fontSize);
|
1832 | fontFamilyStyleProp.setValue(font.fontFamily);
|
1833 | ctx.font = font.toString();
|
1834 | if (fontSizeStyleProp.isPixels()) {
|
1835 | this.document.emSize = fontSizeStyleProp.getPixels();
|
1836 | this.modifiedEmSizeStack = true;
|
1837 | }
|
1838 | }
|
1839 | if (!fromMeasure) {
|
1840 |
|
1841 | this.applyEffects(ctx);
|
1842 |
|
1843 | ctx.globalAlpha = this.calculateOpacity();
|
1844 | }
|
1845 | }
|
1846 | clearContext(ctx) {
|
1847 | super.clearContext(ctx);
|
1848 | if (this.modifiedEmSizeStack) {
|
1849 | this.document.popEmSize();
|
1850 | }
|
1851 | }
|
1852 | }
|
1853 |
|
1854 | class TextElement extends RenderedElement {
|
1855 | constructor(document, node, captureTextNodes) {
|
1856 | super(document, node, new.target === TextElement
|
1857 | ? true
|
1858 | : captureTextNodes);
|
1859 | this.type = 'text';
|
1860 | this.x = 0;
|
1861 | this.y = 0;
|
1862 | this.measureCache = -1;
|
1863 | }
|
1864 | setContext(ctx, fromMeasure = false) {
|
1865 | super.setContext(ctx, fromMeasure);
|
1866 | const textBaseline = this.getStyle('dominant-baseline').getTextBaseline()
|
1867 | || this.getStyle('alignment-baseline').getTextBaseline();
|
1868 | if (textBaseline) {
|
1869 | ctx.textBaseline = textBaseline;
|
1870 | }
|
1871 | }
|
1872 | initializeCoordinates(ctx) {
|
1873 | this.x = this.getAttribute('x').getPixels('x');
|
1874 | this.y = this.getAttribute('y').getPixels('y');
|
1875 | const dxAttr = this.getAttribute('dx');
|
1876 | const dyAttr = this.getAttribute('dy');
|
1877 | if (dxAttr.hasValue()) {
|
1878 | this.x += dxAttr.getPixels('x');
|
1879 | }
|
1880 | if (dyAttr.hasValue()) {
|
1881 | this.y += dyAttr.getPixels('y');
|
1882 | }
|
1883 | this.x += this.getAnchorDelta(ctx, this, 0);
|
1884 | }
|
1885 | getBoundingBox(ctx) {
|
1886 | if (this.type !== 'text') {
|
1887 | return this.getTElementBoundingBox(ctx);
|
1888 | }
|
1889 | this.initializeCoordinates(ctx);
|
1890 | let boundingBox = null;
|
1891 | this.children.forEach((_, i) => {
|
1892 | const childBoundingBox = this.getChildBoundingBox(ctx, this, this, i);
|
1893 | if (!boundingBox) {
|
1894 | boundingBox = childBoundingBox;
|
1895 | }
|
1896 | else {
|
1897 | boundingBox.addBoundingBox(childBoundingBox);
|
1898 | }
|
1899 | });
|
1900 | return boundingBox;
|
1901 | }
|
1902 | getFontSize() {
|
1903 | const { document, parent } = this;
|
1904 | const inheritFontSize = Font.parse(document.ctx.font).fontSize;
|
1905 | const fontSize = parent.getStyle('font-size').getNumber(inheritFontSize);
|
1906 | return fontSize;
|
1907 | }
|
1908 | getTElementBoundingBox(ctx) {
|
1909 | const fontSize = this.getFontSize();
|
1910 | return new BoundingBox(this.x, this.y - fontSize, this.x + this.measureText(ctx), this.y);
|
1911 | }
|
1912 | getGlyph(font, text, i) {
|
1913 | const char = text[i];
|
1914 | let glyph = null;
|
1915 | if (font.isArabic) {
|
1916 | const len = text.length;
|
1917 | const prevChar = text[i - 1];
|
1918 | const nextChar = text[i + 1];
|
1919 | let arabicForm = 'isolated';
|
1920 | if ((i === 0 || prevChar === ' ') && i < len - 2 && nextChar !== ' ') {
|
1921 | arabicForm = 'terminal';
|
1922 | }
|
1923 | if (i > 0 && prevChar !== ' ' && i < len - 2 && nextChar !== ' ') {
|
1924 | arabicForm = 'medial';
|
1925 | }
|
1926 | if (i > 0 && prevChar !== ' ' && (i === len - 1 || nextChar === ' ')) {
|
1927 | arabicForm = 'initial';
|
1928 | }
|
1929 | if (typeof font.glyphs[char] !== 'undefined') {
|
1930 | glyph = font.glyphs[char][arabicForm];
|
1931 | if (!glyph && font.glyphs[char].type === 'glyph') {
|
1932 | glyph = font.glyphs[char];
|
1933 | }
|
1934 | }
|
1935 | }
|
1936 | else {
|
1937 | glyph = font.glyphs[char];
|
1938 | }
|
1939 | if (!glyph) {
|
1940 | glyph = font.missingGlyph;
|
1941 | }
|
1942 | return glyph;
|
1943 | }
|
1944 | getText() {
|
1945 | return '';
|
1946 | }
|
1947 | getTextFromNode(node) {
|
1948 | const textNode = node || this.node;
|
1949 | const childNodes = Array.from(textNode.parentNode.childNodes);
|
1950 | const index = childNodes.indexOf(textNode);
|
1951 | const lastIndex = childNodes.length - 1;
|
1952 | let text = compressSpaces(textNode.value
|
1953 | || textNode.text
|
1954 | || textNode.textContent
|
1955 | || '');
|
1956 | if (index === 0) {
|
1957 | text = trimLeft(text);
|
1958 | }
|
1959 | if (index === lastIndex) {
|
1960 | text = trimRight(text);
|
1961 | }
|
1962 | return text;
|
1963 | }
|
1964 | renderChildren(ctx) {
|
1965 | if (this.type !== 'text') {
|
1966 | this.renderTElementChildren(ctx);
|
1967 | return;
|
1968 | }
|
1969 | this.initializeCoordinates(ctx);
|
1970 | this.children.forEach((_, i) => {
|
1971 | this.renderChild(ctx, this, this, i);
|
1972 | });
|
1973 | const { mouse } = this.document.screen;
|
1974 |
|
1975 | if (mouse.isWorking()) {
|
1976 | mouse.checkBoundingBox(this, this.getBoundingBox(ctx));
|
1977 | }
|
1978 | }
|
1979 | renderTElementChildren(ctx) {
|
1980 | const { document, parent } = this;
|
1981 | const renderText = this.getText();
|
1982 | const customFont = parent.getStyle('font-family').getDefinition();
|
1983 | if (customFont) {
|
1984 | const { unitsPerEm } = customFont.fontFace;
|
1985 | const ctxFont = Font.parse(document.ctx.font);
|
1986 | const fontSize = parent.getStyle('font-size').getNumber(ctxFont.fontSize);
|
1987 | const fontStyle = parent.getStyle('font-style').getString(ctxFont.fontStyle);
|
1988 | const scale = fontSize / unitsPerEm;
|
1989 | const text = customFont.isRTL
|
1990 | ? renderText.split('').reverse().join('')
|
1991 | : renderText;
|
1992 | const dx = toNumbers(parent.getAttribute('dx').getString());
|
1993 | const len = text.length;
|
1994 | for (let i = 0; i < len; i++) {
|
1995 | const glyph = this.getGlyph(customFont, text, i);
|
1996 | ctx.translate(this.x, this.y);
|
1997 | ctx.scale(scale, -scale);
|
1998 | const lw = ctx.lineWidth;
|
1999 | ctx.lineWidth = ctx.lineWidth * unitsPerEm / fontSize;
|
2000 | if (fontStyle === 'italic') {
|
2001 | ctx.transform(1, 0, .4, 1, 0, 0);
|
2002 | }
|
2003 | glyph.render(ctx);
|
2004 | if (fontStyle === 'italic') {
|
2005 | ctx.transform(1, 0, -.4, 1, 0, 0);
|
2006 | }
|
2007 | ctx.lineWidth = lw;
|
2008 | ctx.scale(1 / scale, -1 / scale);
|
2009 | ctx.translate(-this.x, -this.y);
|
2010 | this.x += fontSize * (glyph.horizAdvX || customFont.horizAdvX) / unitsPerEm;
|
2011 | if (typeof dx[i] !== 'undefined' && !isNaN(dx[i])) {
|
2012 | this.x += dx[i];
|
2013 | }
|
2014 | }
|
2015 | return;
|
2016 | }
|
2017 | const { x, y } = this;
|
2018 | if (ctx.paintOrder === 'stroke') {
|
2019 | if (ctx.strokeStyle) {
|
2020 | ctx.strokeText(renderText, x, y);
|
2021 | }
|
2022 | if (ctx.fillStyle) {
|
2023 | ctx.fillText(renderText, x, y);
|
2024 | }
|
2025 | }
|
2026 | else {
|
2027 | if (ctx.fillStyle) {
|
2028 | ctx.fillText(renderText, x, y);
|
2029 | }
|
2030 | if (ctx.strokeStyle) {
|
2031 | ctx.strokeText(renderText, x, y);
|
2032 | }
|
2033 | }
|
2034 | }
|
2035 | getAnchorDelta(ctx, parent, startI) {
|
2036 | const textAnchor = this.getStyle('text-anchor').getString('start');
|
2037 | if (textAnchor !== 'start') {
|
2038 | const { children } = parent;
|
2039 | const len = children.length;
|
2040 | let child = null;
|
2041 | let width = 0;
|
2042 | for (let i = startI; i < len; i++) {
|
2043 | child = children[i];
|
2044 | if (i > startI && child.getAttribute('x').hasValue()
|
2045 | || child.getAttribute('text-anchor').hasValue()) {
|
2046 | break;
|
2047 | }
|
2048 | width += child.measureTextRecursive(ctx);
|
2049 | }
|
2050 | return -1 * (textAnchor === 'end' ? width : width / 2.0);
|
2051 | }
|
2052 | return 0;
|
2053 | }
|
2054 | adjustChildCoordinates(ctx, textParent, parent, i) {
|
2055 | const child = parent.children[i];
|
2056 | if (typeof child.measureText !== 'function') {
|
2057 | return child;
|
2058 | }
|
2059 | ctx.save();
|
2060 | child.setContext(ctx, true);
|
2061 | const xAttr = child.getAttribute('x');
|
2062 | const yAttr = child.getAttribute('y');
|
2063 | const dxAttr = child.getAttribute('dx');
|
2064 | const dyAttr = child.getAttribute('dy');
|
2065 | const textAnchor = child.getAttribute('text-anchor').getString('start');
|
2066 | if (i === 0 && child.type !== 'textNode') {
|
2067 | if (!xAttr.hasValue()) {
|
2068 | xAttr.setValue(textParent.getAttribute('x').getValue('0'));
|
2069 | }
|
2070 | if (!yAttr.hasValue()) {
|
2071 | yAttr.setValue(textParent.getAttribute('y').getValue('0'));
|
2072 | }
|
2073 | if (!dxAttr.hasValue()) {
|
2074 | dxAttr.setValue(textParent.getAttribute('dx').getValue('0'));
|
2075 | }
|
2076 | if (!dyAttr.hasValue()) {
|
2077 | dyAttr.setValue(textParent.getAttribute('dy').getValue('0'));
|
2078 | }
|
2079 | }
|
2080 | if (xAttr.hasValue()) {
|
2081 | child.x = xAttr.getPixels('x') + textParent.getAnchorDelta(ctx, parent, i);
|
2082 | if (textAnchor !== 'start') {
|
2083 | const width = child.measureTextRecursive(ctx);
|
2084 | child.x += -1 * (textAnchor === 'end' ? width : width / 2.0);
|
2085 | }
|
2086 | if (dxAttr.hasValue()) {
|
2087 | child.x += dxAttr.getPixels('x');
|
2088 | }
|
2089 | }
|
2090 | else {
|
2091 | if (textAnchor !== 'start') {
|
2092 | const width = child.measureTextRecursive(ctx);
|
2093 | textParent.x += -1 * (textAnchor === 'end' ? width : width / 2.0);
|
2094 | }
|
2095 | if (dxAttr.hasValue()) {
|
2096 | textParent.x += dxAttr.getPixels('x');
|
2097 | }
|
2098 | child.x = textParent.x;
|
2099 | }
|
2100 | textParent.x = child.x + child.measureText(ctx);
|
2101 | if (yAttr.hasValue()) {
|
2102 | child.y = yAttr.getPixels('y');
|
2103 | if (dyAttr.hasValue()) {
|
2104 | child.y += dyAttr.getPixels('y');
|
2105 | }
|
2106 | }
|
2107 | else {
|
2108 | if (dyAttr.hasValue()) {
|
2109 | textParent.y += dyAttr.getPixels('y');
|
2110 | }
|
2111 | child.y = textParent.y;
|
2112 | }
|
2113 | textParent.y = child.y;
|
2114 | child.clearContext(ctx);
|
2115 | ctx.restore();
|
2116 | return child;
|
2117 | }
|
2118 | getChildBoundingBox(ctx, textParent, parent, i) {
|
2119 | const child = this.adjustChildCoordinates(ctx, textParent, parent, i);
|
2120 |
|
2121 | if (typeof child.getBoundingBox !== 'function') {
|
2122 | return null;
|
2123 | }
|
2124 | const boundingBox = child.getBoundingBox(ctx);
|
2125 | if (!boundingBox) {
|
2126 | return null;
|
2127 | }
|
2128 | child.children.forEach((_, i) => {
|
2129 | const childBoundingBox = textParent.getChildBoundingBox(ctx, textParent, child, i);
|
2130 | boundingBox.addBoundingBox(childBoundingBox);
|
2131 | });
|
2132 | return boundingBox;
|
2133 | }
|
2134 | renderChild(ctx, textParent, parent, i) {
|
2135 | const child = this.adjustChildCoordinates(ctx, textParent, parent, i);
|
2136 | child.render(ctx);
|
2137 | child.children.forEach((_, i) => {
|
2138 | textParent.renderChild(ctx, textParent, child, i);
|
2139 | });
|
2140 | }
|
2141 | measureTextRecursive(ctx) {
|
2142 | const width = this.children.reduce((width, child) => width + child.measureTextRecursive(ctx), this.measureText(ctx));
|
2143 | return width;
|
2144 | }
|
2145 | measureText(ctx) {
|
2146 | const { measureCache } = this;
|
2147 | if (~measureCache) {
|
2148 | return measureCache;
|
2149 | }
|
2150 | const renderText = this.getText();
|
2151 | const measure = this.measureTargetText(ctx, renderText);
|
2152 | this.measureCache = measure;
|
2153 | return measure;
|
2154 | }
|
2155 | measureTargetText(ctx, targetText) {
|
2156 | if (!targetText.length) {
|
2157 | return 0;
|
2158 | }
|
2159 | const { parent } = this;
|
2160 | const customFont = parent.getStyle('font-family').getDefinition();
|
2161 | if (customFont) {
|
2162 | const fontSize = this.getFontSize();
|
2163 | const text = customFont.isRTL
|
2164 | ? targetText.split('').reverse().join('')
|
2165 | : targetText;
|
2166 | const dx = toNumbers(parent.getAttribute('dx').getString());
|
2167 | const len = text.length;
|
2168 | let measure = 0;
|
2169 | for (let i = 0; i < len; i++) {
|
2170 | const glyph = this.getGlyph(customFont, text, i);
|
2171 | measure += (glyph.horizAdvX || customFont.horizAdvX)
|
2172 | * fontSize
|
2173 | / customFont.fontFace.unitsPerEm;
|
2174 | if (typeof dx[i] !== 'undefined' && !isNaN(dx[i])) {
|
2175 | measure += dx[i];
|
2176 | }
|
2177 | }
|
2178 | return measure;
|
2179 | }
|
2180 | if (!ctx.measureText) {
|
2181 | return targetText.length * 10;
|
2182 | }
|
2183 | ctx.save();
|
2184 | this.setContext(ctx, true);
|
2185 | const { width: measure } = ctx.measureText(targetText);
|
2186 | this.clearContext(ctx);
|
2187 | ctx.restore();
|
2188 | return measure;
|
2189 | }
|
2190 | }
|
2191 |
|
2192 | class TSpanElement extends TextElement {
|
2193 | constructor(document, node, captureTextNodes) {
|
2194 | super(document, node, new.target === TSpanElement
|
2195 | ? true
|
2196 | : captureTextNodes);
|
2197 | this.type = 'tspan';
|
2198 |
|
2199 | this.text = this.children.length > 0
|
2200 | ? ''
|
2201 | : this.getTextFromNode();
|
2202 | }
|
2203 | getText() {
|
2204 | return this.text;
|
2205 | }
|
2206 | }
|
2207 |
|
2208 | class TextNode extends TSpanElement {
|
2209 | constructor() {
|
2210 | super(...arguments);
|
2211 | this.type = 'textNode';
|
2212 | }
|
2213 | }
|
2214 |
|
2215 | class PathParser extends SVGPathData {
|
2216 | constructor(path) {
|
2217 | super(path
|
2218 |
|
2219 | .replace(/[+-.]\s+/g, '-')
|
2220 |
|
2221 | .replace(/[^MmZzLlHhVvCcSsQqTtAae\d\s.,+-].*/g, ''));
|
2222 | this.control = null;
|
2223 | this.start = null;
|
2224 | this.current = null;
|
2225 | this.command = null;
|
2226 | this.commands = this.commands;
|
2227 | this.i = -1;
|
2228 | this.previousCommand = null;
|
2229 | this.points = [];
|
2230 | this.angles = [];
|
2231 | }
|
2232 | reset() {
|
2233 | this.i = -1;
|
2234 | this.command = null;
|
2235 | this.previousCommand = null;
|
2236 | this.start = new Point(0, 0);
|
2237 | this.control = new Point(0, 0);
|
2238 | this.current = new Point(0, 0);
|
2239 | this.points = [];
|
2240 | this.angles = [];
|
2241 | }
|
2242 | isEnd() {
|
2243 | const { i, commands } = this;
|
2244 | return i >= commands.length - 1;
|
2245 | }
|
2246 | next() {
|
2247 | const command = this.commands[++this.i];
|
2248 | this.previousCommand = this.command;
|
2249 | this.command = command;
|
2250 | return command;
|
2251 | }
|
2252 | getPoint(xProp = 'x', yProp = 'y') {
|
2253 | const point = new Point(this.command[xProp], this.command[yProp]);
|
2254 | return this.makeAbsolute(point);
|
2255 | }
|
2256 | getAsControlPoint(xProp, yProp) {
|
2257 | const point = this.getPoint(xProp, yProp);
|
2258 | this.control = point;
|
2259 | return point;
|
2260 | }
|
2261 | getAsCurrentPoint(xProp, yProp) {
|
2262 | const point = this.getPoint(xProp, yProp);
|
2263 | this.current = point;
|
2264 | return point;
|
2265 | }
|
2266 | getReflectedControlPoint() {
|
2267 | const previousCommand = this.previousCommand.type;
|
2268 | if (previousCommand !== SVGPathData.CURVE_TO
|
2269 | && previousCommand !== SVGPathData.SMOOTH_CURVE_TO
|
2270 | && previousCommand !== SVGPathData.QUAD_TO
|
2271 | && previousCommand !== SVGPathData.SMOOTH_QUAD_TO) {
|
2272 | return this.current;
|
2273 | }
|
2274 |
|
2275 | const { current: { x: cx, y: cy }, control: { x: ox, y: oy } } = this;
|
2276 | const point = new Point(2 * cx - ox, 2 * cy - oy);
|
2277 | return point;
|
2278 | }
|
2279 | makeAbsolute(point) {
|
2280 | if (this.command.relative) {
|
2281 | const { x, y } = this.current;
|
2282 | point.x += x;
|
2283 | point.y += y;
|
2284 | }
|
2285 | return point;
|
2286 | }
|
2287 | addMarker(point, from, priorTo) {
|
2288 | const { points, angles } = this;
|
2289 |
|
2290 | if (priorTo && angles.length > 0 && !angles[angles.length - 1]) {
|
2291 | angles[angles.length - 1] = points[points.length - 1].angleTo(priorTo);
|
2292 | }
|
2293 | this.addMarkerAngle(point, from ? from.angleTo(point) : null);
|
2294 | }
|
2295 | addMarkerAngle(point, angle) {
|
2296 | this.points.push(point);
|
2297 | this.angles.push(angle);
|
2298 | }
|
2299 | getMarkerPoints() {
|
2300 | return this.points;
|
2301 | }
|
2302 | getMarkerAngles() {
|
2303 | const { angles } = this;
|
2304 | const len = angles.length;
|
2305 | for (let i = 0; i < len; i++) {
|
2306 | if (!angles[i]) {
|
2307 | for (let j = i + 1; j < len; j++) {
|
2308 | if (angles[j]) {
|
2309 | angles[i] = angles[j];
|
2310 | break;
|
2311 | }
|
2312 | }
|
2313 | }
|
2314 | }
|
2315 | return angles;
|
2316 | }
|
2317 | }
|
2318 |
|
2319 | class PathElement extends RenderedElement {
|
2320 | constructor(document, node, captureTextNodes) {
|
2321 | super(document, node, captureTextNodes);
|
2322 | this.type = 'path';
|
2323 | this.pathParser = null;
|
2324 | this.pathParser = new PathParser(this.getAttribute('d').getString());
|
2325 | }
|
2326 | path(ctx) {
|
2327 | const { pathParser } = this;
|
2328 | const boundingBox = new BoundingBox();
|
2329 | pathParser.reset();
|
2330 | if (ctx) {
|
2331 | ctx.beginPath();
|
2332 | }
|
2333 | while (!pathParser.isEnd()) {
|
2334 | switch (pathParser.next().type) {
|
2335 | case PathParser.MOVE_TO:
|
2336 | this.pathM(ctx, boundingBox);
|
2337 | break;
|
2338 | case PathParser.LINE_TO:
|
2339 | this.pathL(ctx, boundingBox);
|
2340 | break;
|
2341 | case PathParser.HORIZ_LINE_TO:
|
2342 | this.pathH(ctx, boundingBox);
|
2343 | break;
|
2344 | case PathParser.VERT_LINE_TO:
|
2345 | this.pathV(ctx, boundingBox);
|
2346 | break;
|
2347 | case PathParser.CURVE_TO:
|
2348 | this.pathC(ctx, boundingBox);
|
2349 | break;
|
2350 | case PathParser.SMOOTH_CURVE_TO:
|
2351 | this.pathS(ctx, boundingBox);
|
2352 | break;
|
2353 | case PathParser.QUAD_TO:
|
2354 | this.pathQ(ctx, boundingBox);
|
2355 | break;
|
2356 | case PathParser.SMOOTH_QUAD_TO:
|
2357 | this.pathT(ctx, boundingBox);
|
2358 | break;
|
2359 | case PathParser.ARC:
|
2360 | this.pathA(ctx, boundingBox);
|
2361 | break;
|
2362 | case PathParser.CLOSE_PATH:
|
2363 | this.pathZ(ctx, boundingBox);
|
2364 | break;
|
2365 | }
|
2366 | }
|
2367 | return boundingBox;
|
2368 | }
|
2369 | getBoundingBox(_) {
|
2370 | return this.path();
|
2371 | }
|
2372 | getMarkers() {
|
2373 | const { pathParser } = this;
|
2374 | const points = pathParser.getMarkerPoints();
|
2375 | const angles = pathParser.getMarkerAngles();
|
2376 | const markers = points.map((point, i) => [
|
2377 | point,
|
2378 | angles[i]
|
2379 | ]);
|
2380 | return markers;
|
2381 | }
|
2382 | renderChildren(ctx) {
|
2383 | this.path(ctx);
|
2384 | this.document.screen.mouse.checkPath(this, ctx);
|
2385 | const fillRuleStyleProp = this.getStyle('fill-rule');
|
2386 | if (ctx.fillStyle !== '') {
|
2387 | if (fillRuleStyleProp.getString('inherit') !== 'inherit') {
|
2388 | ctx.fill(fillRuleStyleProp.getString());
|
2389 | }
|
2390 | else {
|
2391 | ctx.fill();
|
2392 | }
|
2393 | }
|
2394 | if (ctx.strokeStyle !== '') {
|
2395 | ctx.stroke();
|
2396 | }
|
2397 | const markers = this.getMarkers();
|
2398 | if (markers) {
|
2399 | const markersLastIndex = markers.length - 1;
|
2400 | const markerStartStyleProp = this.getStyle('marker-start');
|
2401 | const markerMidStyleProp = this.getStyle('marker-mid');
|
2402 | const markerEndStyleProp = this.getStyle('marker-end');
|
2403 | if (markerStartStyleProp.isUrlDefinition()) {
|
2404 | const marker = markerStartStyleProp.getDefinition();
|
2405 | const [point, angle] = markers[0];
|
2406 | marker.render(ctx, point, angle);
|
2407 | }
|
2408 | if (markerMidStyleProp.isUrlDefinition()) {
|
2409 | const marker = markerMidStyleProp.getDefinition();
|
2410 | for (let i = 1; i < markersLastIndex; i++) {
|
2411 | const [point, angle] = markers[i];
|
2412 | marker.render(ctx, point, angle);
|
2413 | }
|
2414 | }
|
2415 | if (markerEndStyleProp.isUrlDefinition()) {
|
2416 | const marker = markerEndStyleProp.getDefinition();
|
2417 | const [point, angle] = markers[markersLastIndex];
|
2418 | marker.render(ctx, point, angle);
|
2419 | }
|
2420 | }
|
2421 | }
|
2422 | static pathM(pathParser) {
|
2423 | const point = pathParser.getAsCurrentPoint();
|
2424 | pathParser.start = pathParser.current;
|
2425 | return {
|
2426 | point
|
2427 | };
|
2428 | }
|
2429 | pathM(ctx, boundingBox) {
|
2430 | const { pathParser } = this;
|
2431 | const { point } = PathElement.pathM(pathParser);
|
2432 | const { x, y } = point;
|
2433 | pathParser.addMarker(point);
|
2434 | boundingBox.addPoint(x, y);
|
2435 | if (ctx) {
|
2436 | ctx.moveTo(x, y);
|
2437 | }
|
2438 | }
|
2439 | static pathL(pathParser) {
|
2440 | const { current } = pathParser;
|
2441 | const point = pathParser.getAsCurrentPoint();
|
2442 | return {
|
2443 | current,
|
2444 | point
|
2445 | };
|
2446 | }
|
2447 | pathL(ctx, boundingBox) {
|
2448 | const { pathParser } = this;
|
2449 | const { current, point } = PathElement.pathL(pathParser);
|
2450 | const { x, y } = point;
|
2451 | pathParser.addMarker(point, current);
|
2452 | boundingBox.addPoint(x, y);
|
2453 | if (ctx) {
|
2454 | ctx.lineTo(x, y);
|
2455 | }
|
2456 | }
|
2457 | static pathH(pathParser) {
|
2458 | const { current, command } = pathParser;
|
2459 | const point = new Point((command.relative ? current.x : 0) + command.x, current.y);
|
2460 | pathParser.current = point;
|
2461 | return {
|
2462 | current,
|
2463 | point
|
2464 | };
|
2465 | }
|
2466 | pathH(ctx, boundingBox) {
|
2467 | const { pathParser } = this;
|
2468 | const { current, point } = PathElement.pathH(pathParser);
|
2469 | const { x, y } = point;
|
2470 | pathParser.addMarker(point, current);
|
2471 | boundingBox.addPoint(x, y);
|
2472 | if (ctx) {
|
2473 | ctx.lineTo(x, y);
|
2474 | }
|
2475 | }
|
2476 | static pathV(pathParser) {
|
2477 | const { current, command } = pathParser;
|
2478 | const point = new Point(current.x, (command.relative ? current.y : 0) + command.y);
|
2479 | pathParser.current = point;
|
2480 | return {
|
2481 | current,
|
2482 | point
|
2483 | };
|
2484 | }
|
2485 | pathV(ctx, boundingBox) {
|
2486 | const { pathParser } = this;
|
2487 | const { current, point } = PathElement.pathV(pathParser);
|
2488 | const { x, y } = point;
|
2489 | pathParser.addMarker(point, current);
|
2490 | boundingBox.addPoint(x, y);
|
2491 | if (ctx) {
|
2492 | ctx.lineTo(x, y);
|
2493 | }
|
2494 | }
|
2495 | static pathC(pathParser) {
|
2496 | const { current } = pathParser;
|
2497 | const point = pathParser.getPoint('x1', 'y1');
|
2498 | const controlPoint = pathParser.getAsControlPoint('x2', 'y2');
|
2499 | const currentPoint = pathParser.getAsCurrentPoint();
|
2500 | return {
|
2501 | current,
|
2502 | point,
|
2503 | controlPoint,
|
2504 | currentPoint
|
2505 | };
|
2506 | }
|
2507 | pathC(ctx, boundingBox) {
|
2508 | const { pathParser } = this;
|
2509 | const { current, point, controlPoint, currentPoint } = PathElement.pathC(pathParser);
|
2510 | pathParser.addMarker(currentPoint, controlPoint, point);
|
2511 | boundingBox.addBezierCurve(current.x, current.y, point.x, point.y, controlPoint.x, controlPoint.y, currentPoint.x, currentPoint.y);
|
2512 | if (ctx) {
|
2513 | ctx.bezierCurveTo(point.x, point.y, controlPoint.x, controlPoint.y, currentPoint.x, currentPoint.y);
|
2514 | }
|
2515 | }
|
2516 | static pathS(pathParser) {
|
2517 | const { current } = pathParser;
|
2518 | const point = pathParser.getReflectedControlPoint();
|
2519 | const controlPoint = pathParser.getAsControlPoint('x2', 'y2');
|
2520 | const currentPoint = pathParser.getAsCurrentPoint();
|
2521 | return {
|
2522 | current,
|
2523 | point,
|
2524 | controlPoint,
|
2525 | currentPoint
|
2526 | };
|
2527 | }
|
2528 | pathS(ctx, boundingBox) {
|
2529 | const { pathParser } = this;
|
2530 | const { current, point, controlPoint, currentPoint } = PathElement.pathS(pathParser);
|
2531 | pathParser.addMarker(currentPoint, controlPoint, point);
|
2532 | boundingBox.addBezierCurve(current.x, current.y, point.x, point.y, controlPoint.x, controlPoint.y, currentPoint.x, currentPoint.y);
|
2533 | if (ctx) {
|
2534 | ctx.bezierCurveTo(point.x, point.y, controlPoint.x, controlPoint.y, currentPoint.x, currentPoint.y);
|
2535 | }
|
2536 | }
|
2537 | static pathQ(pathParser) {
|
2538 | const { current } = pathParser;
|
2539 | const controlPoint = pathParser.getAsControlPoint('x1', 'y1');
|
2540 | const currentPoint = pathParser.getAsCurrentPoint();
|
2541 | return {
|
2542 | current,
|
2543 | controlPoint,
|
2544 | currentPoint
|
2545 | };
|
2546 | }
|
2547 | pathQ(ctx, boundingBox) {
|
2548 | const { pathParser } = this;
|
2549 | const { current, controlPoint, currentPoint } = PathElement.pathQ(pathParser);
|
2550 | pathParser.addMarker(currentPoint, controlPoint, controlPoint);
|
2551 | boundingBox.addQuadraticCurve(current.x, current.y, controlPoint.x, controlPoint.y, currentPoint.x, currentPoint.y);
|
2552 | if (ctx) {
|
2553 | ctx.quadraticCurveTo(controlPoint.x, controlPoint.y, currentPoint.x, currentPoint.y);
|
2554 | }
|
2555 | }
|
2556 | static pathT(pathParser) {
|
2557 | const { current } = pathParser;
|
2558 | const controlPoint = pathParser.getReflectedControlPoint();
|
2559 | pathParser.control = controlPoint;
|
2560 | const currentPoint = pathParser.getAsCurrentPoint();
|
2561 | return {
|
2562 | current,
|
2563 | controlPoint,
|
2564 | currentPoint
|
2565 | };
|
2566 | }
|
2567 | pathT(ctx, boundingBox) {
|
2568 | const { pathParser } = this;
|
2569 | const { current, controlPoint, currentPoint } = PathElement.pathT(pathParser);
|
2570 | pathParser.addMarker(currentPoint, controlPoint, controlPoint);
|
2571 | boundingBox.addQuadraticCurve(current.x, current.y, controlPoint.x, controlPoint.y, currentPoint.x, currentPoint.y);
|
2572 | if (ctx) {
|
2573 | ctx.quadraticCurveTo(controlPoint.x, controlPoint.y, currentPoint.x, currentPoint.y);
|
2574 | }
|
2575 | }
|
2576 | static pathA(pathParser) {
|
2577 | const { current, command } = pathParser;
|
2578 | let { rX, rY, xRot, lArcFlag, sweepFlag } = command;
|
2579 | const xAxisRotation = xRot * (Math.PI / 180.0);
|
2580 | const currentPoint = pathParser.getAsCurrentPoint();
|
2581 |
|
2582 |
|
2583 |
|
2584 | const currp = new Point(Math.cos(xAxisRotation) * (current.x - currentPoint.x) / 2.0
|
2585 | + Math.sin(xAxisRotation) * (current.y - currentPoint.y) / 2.0, -Math.sin(xAxisRotation) * (current.x - currentPoint.x) / 2.0
|
2586 | + Math.cos(xAxisRotation) * (current.y - currentPoint.y) / 2.0);
|
2587 |
|
2588 | const l = (Math.pow(currp.x, 2) / Math.pow(rX, 2)
|
2589 | + Math.pow(currp.y, 2) / Math.pow(rY, 2));
|
2590 | if (l > 1) {
|
2591 | rX *= Math.sqrt(l);
|
2592 | rY *= Math.sqrt(l);
|
2593 | }
|
2594 |
|
2595 | let s = (lArcFlag === sweepFlag ? -1 : 1) * Math.sqrt(((Math.pow(rX, 2) * Math.pow(rY, 2))
|
2596 | - (Math.pow(rX, 2) * Math.pow(currp.y, 2))
|
2597 | - (Math.pow(rY, 2) * Math.pow(currp.x, 2))) / (Math.pow(rX, 2) * Math.pow(currp.y, 2)
|
2598 | + Math.pow(rY, 2) * Math.pow(currp.x, 2)));
|
2599 | if (isNaN(s)) {
|
2600 | s = 0;
|
2601 | }
|
2602 | const cpp = new Point(s * rX * currp.y / rY, s * -rY * currp.x / rX);
|
2603 |
|
2604 | const centp = new Point((current.x + currentPoint.x) / 2.0
|
2605 | + Math.cos(xAxisRotation) * cpp.x
|
2606 | - Math.sin(xAxisRotation) * cpp.y, (current.y + currentPoint.y) / 2.0
|
2607 | + Math.sin(xAxisRotation) * cpp.x
|
2608 | + Math.cos(xAxisRotation) * cpp.y);
|
2609 |
|
2610 | const a1 = vectorsAngle([1, 0], [(currp.x - cpp.x) / rX, (currp.y - cpp.y) / rY]);
|
2611 |
|
2612 | const u = [(currp.x - cpp.x) / rX, (currp.y - cpp.y) / rY];
|
2613 | const v = [(-currp.x - cpp.x) / rX, (-currp.y - cpp.y) / rY];
|
2614 | let ad = vectorsAngle(u, v);
|
2615 | if (vectorsRatio(u, v) <= -1) {
|
2616 | ad = Math.PI;
|
2617 | }
|
2618 | if (vectorsRatio(u, v) >= 1) {
|
2619 | ad = 0;
|
2620 | }
|
2621 | return {
|
2622 | currentPoint,
|
2623 | rX,
|
2624 | rY,
|
2625 | sweepFlag,
|
2626 | xAxisRotation,
|
2627 | centp,
|
2628 | a1,
|
2629 | ad
|
2630 | };
|
2631 | }
|
2632 | pathA(ctx, boundingBox) {
|
2633 | const { pathParser } = this;
|
2634 | const { currentPoint, rX, rY, sweepFlag, xAxisRotation, centp, a1, ad } = PathElement.pathA(pathParser);
|
2635 |
|
2636 | const dir = 1 - sweepFlag ? 1.0 : -1.0;
|
2637 | const ah = a1 + dir * (ad / 2.0);
|
2638 | const halfWay = new Point(centp.x + rX * Math.cos(ah), centp.y + rY * Math.sin(ah));
|
2639 | pathParser.addMarkerAngle(halfWay, ah - dir * Math.PI / 2);
|
2640 | pathParser.addMarkerAngle(currentPoint, ah - dir * Math.PI);
|
2641 | boundingBox.addPoint(currentPoint.x, currentPoint.y);
|
2642 | if (ctx && !isNaN(a1) && !isNaN(ad)) {
|
2643 | const r = rX > rY ? rX : rY;
|
2644 | const sx = rX > rY ? 1 : rX / rY;
|
2645 | const sy = rX > rY ? rY / rX : 1;
|
2646 | ctx.translate(centp.x, centp.y);
|
2647 | ctx.rotate(xAxisRotation);
|
2648 | ctx.scale(sx, sy);
|
2649 | ctx.arc(0, 0, r, a1, a1 + ad, Boolean(1 - sweepFlag));
|
2650 | ctx.scale(1 / sx, 1 / sy);
|
2651 | ctx.rotate(-xAxisRotation);
|
2652 | ctx.translate(-centp.x, -centp.y);
|
2653 | }
|
2654 | }
|
2655 | static pathZ(pathParser) {
|
2656 | pathParser.current = pathParser.start;
|
2657 | }
|
2658 | pathZ(ctx, boundingBox) {
|
2659 | PathElement.pathZ(this.pathParser);
|
2660 | if (ctx) {
|
2661 |
|
2662 | if (boundingBox.x1 !== boundingBox.x2
|
2663 | && boundingBox.y1 !== boundingBox.y2) {
|
2664 | ctx.closePath();
|
2665 | }
|
2666 | }
|
2667 | }
|
2668 | }
|
2669 |
|
2670 | class SVGElement extends RenderedElement {
|
2671 | constructor() {
|
2672 | super(...arguments);
|
2673 | this.type = 'svg';
|
2674 | this.root = false;
|
2675 | }
|
2676 | setContext(ctx) {
|
2677 | const { document } = this;
|
2678 | const { screen, window } = document;
|
2679 | const canvas = ctx.canvas;
|
2680 | screen.setDefaults(ctx);
|
2681 | if (canvas.style
|
2682 | && typeof ctx.font !== 'undefined'
|
2683 | && window
|
2684 | && typeof window.getComputedStyle !== 'undefined') {
|
2685 | ctx.font = window.getComputedStyle(canvas).getPropertyValue('font');
|
2686 | const fontSizeProp = new Property(document, 'fontSize', Font.parse(ctx.font).fontSize);
|
2687 | if (fontSizeProp.hasValue()) {
|
2688 | document.rootEmSize = fontSizeProp.getPixels('y');
|
2689 | document.emSize = document.rootEmSize;
|
2690 | }
|
2691 | }
|
2692 |
|
2693 | if (!this.getAttribute('x').hasValue()) {
|
2694 | this.getAttribute('x', true).setValue(0);
|
2695 | }
|
2696 | if (!this.getAttribute('y').hasValue()) {
|
2697 | this.getAttribute('y', true).setValue(0);
|
2698 | }
|
2699 | let { width, height } = screen.viewPort;
|
2700 | if (!this.getStyle('width').hasValue()) {
|
2701 | this.getStyle('width', true).setValue('100%');
|
2702 | }
|
2703 | if (!this.getStyle('height').hasValue()) {
|
2704 | this.getStyle('height', true).setValue('100%');
|
2705 | }
|
2706 | if (!this.getStyle('color').hasValue()) {
|
2707 | this.getStyle('color', true).setValue('black');
|
2708 | }
|
2709 | const refXAttr = this.getAttribute('refX');
|
2710 | const refYAttr = this.getAttribute('refY');
|
2711 | const viewBoxAttr = this.getAttribute('viewBox');
|
2712 | const viewBox = viewBoxAttr.hasValue()
|
2713 | ? toNumbers(viewBoxAttr.getString())
|
2714 | : null;
|
2715 | const clip = !this.root
|
2716 | && this.getStyle('overflow').getValue('hidden') !== 'visible';
|
2717 | let minX = 0;
|
2718 | let minY = 0;
|
2719 | let clipX = 0;
|
2720 | let clipY = 0;
|
2721 | if (viewBox) {
|
2722 | minX = viewBox[0];
|
2723 | minY = viewBox[1];
|
2724 | }
|
2725 | if (!this.root) {
|
2726 | width = this.getStyle('width').getPixels('x');
|
2727 | height = this.getStyle('height').getPixels('y');
|
2728 | if (this.type === 'marker') {
|
2729 | clipX = minX;
|
2730 | clipY = minY;
|
2731 | minX = 0;
|
2732 | minY = 0;
|
2733 | }
|
2734 | }
|
2735 | screen.viewPort.setCurrent(width, height);
|
2736 | if (this.node
|
2737 | && this.getStyle('transform', false, true).hasValue()
|
2738 | && !this.getStyle('transform-origin', false, true).hasValue()) {
|
2739 | this.getStyle('transform-origin', true, true).setValue('50% 50%');
|
2740 | }
|
2741 | super.setContext(ctx);
|
2742 | ctx.translate(this.getAttribute('x').getPixels('x'), this.getAttribute('y').getPixels('y'));
|
2743 | if (viewBox) {
|
2744 | width = viewBox[2];
|
2745 | height = viewBox[3];
|
2746 | }
|
2747 | document.setViewBox({
|
2748 | ctx,
|
2749 | aspectRatio: this.getAttribute('preserveAspectRatio').getString(),
|
2750 | width: screen.viewPort.width,
|
2751 | desiredWidth: width,
|
2752 | height: screen.viewPort.height,
|
2753 | desiredHeight: height,
|
2754 | minX,
|
2755 | minY,
|
2756 | refX: refXAttr.getValue(),
|
2757 | refY: refYAttr.getValue(),
|
2758 | clip,
|
2759 | clipX,
|
2760 | clipY
|
2761 | });
|
2762 | if (viewBox) {
|
2763 | screen.viewPort.removeCurrent();
|
2764 | screen.viewPort.setCurrent(width, height);
|
2765 | }
|
2766 | }
|
2767 | clearContext(ctx) {
|
2768 | super.clearContext(ctx);
|
2769 | this.document.screen.viewPort.removeCurrent();
|
2770 | }
|
2771 | |
2772 |
|
2773 |
|
2774 |
|
2775 |
|
2776 |
|
2777 | resize(width, height = width, preserveAspectRatio = false) {
|
2778 | const widthAttr = this.getAttribute('width', true);
|
2779 | const heightAttr = this.getAttribute('height', true);
|
2780 | const viewBoxAttr = this.getAttribute('viewBox');
|
2781 | const styleAttr = this.getAttribute('style');
|
2782 | const originWidth = widthAttr.getNumber(0);
|
2783 | const originHeight = heightAttr.getNumber(0);
|
2784 | if (preserveAspectRatio) {
|
2785 | if (typeof preserveAspectRatio === 'string') {
|
2786 | this.getAttribute('preserveAspectRatio', true).setValue(preserveAspectRatio);
|
2787 | }
|
2788 | else {
|
2789 | const preserveAspectRatioAttr = this.getAttribute('preserveAspectRatio');
|
2790 | if (preserveAspectRatioAttr.hasValue()) {
|
2791 | preserveAspectRatioAttr.setValue(preserveAspectRatioAttr.getString().replace(/^\s*(\S.*\S)\s*$/, '$1'));
|
2792 | }
|
2793 | }
|
2794 | }
|
2795 | widthAttr.setValue(width);
|
2796 | heightAttr.setValue(height);
|
2797 | if (!viewBoxAttr.hasValue()) {
|
2798 | viewBoxAttr.setValue(`0 0 ${originWidth || width} ${originHeight || height}`);
|
2799 | }
|
2800 | if (styleAttr.hasValue()) {
|
2801 | const widthStyle = this.getStyle('width');
|
2802 | const heightStyle = this.getStyle('height');
|
2803 | if (widthStyle.hasValue()) {
|
2804 | widthStyle.setValue(`${width}px`);
|
2805 | }
|
2806 | if (heightStyle.hasValue()) {
|
2807 | heightStyle.setValue(`${height}px`);
|
2808 | }
|
2809 | }
|
2810 | }
|
2811 | }
|
2812 |
|
2813 | class RectElement extends PathElement {
|
2814 | constructor() {
|
2815 | super(...arguments);
|
2816 | this.type = 'rect';
|
2817 | }
|
2818 | path(ctx) {
|
2819 | const x = this.getAttribute('x').getPixels('x');
|
2820 | const y = this.getAttribute('y').getPixels('y');
|
2821 | const width = this.getStyle('width', false, true).getPixels('x');
|
2822 | const height = this.getStyle('height', false, true).getPixels('y');
|
2823 | const rxAttr = this.getAttribute('rx');
|
2824 | const ryAttr = this.getAttribute('ry');
|
2825 | let rx = rxAttr.getPixels('x');
|
2826 | let ry = ryAttr.getPixels('y');
|
2827 | if (rxAttr.hasValue() && !ryAttr.hasValue()) {
|
2828 | ry = rx;
|
2829 | }
|
2830 | if (ryAttr.hasValue() && !rxAttr.hasValue()) {
|
2831 | rx = ry;
|
2832 | }
|
2833 | rx = Math.min(rx, width / 2.0);
|
2834 | ry = Math.min(ry, height / 2.0);
|
2835 | if (ctx) {
|
2836 | const KAPPA = 4 * ((Math.sqrt(2) - 1) / 3);
|
2837 | ctx.beginPath();
|
2838 | if (height > 0 && width > 0) {
|
2839 | ctx.moveTo(x + rx, y);
|
2840 | ctx.lineTo(x + width - rx, y);
|
2841 | ctx.bezierCurveTo(x + width - rx + (KAPPA * rx), y, x + width, y + ry - (KAPPA * ry), x + width, y + ry);
|
2842 | ctx.lineTo(x + width, y + height - ry);
|
2843 | ctx.bezierCurveTo(x + width, y + height - ry + (KAPPA * ry), x + width - rx + (KAPPA * rx), y + height, x + width - rx, y + height);
|
2844 | ctx.lineTo(x + rx, y + height);
|
2845 | ctx.bezierCurveTo(x + rx - (KAPPA * rx), y + height, x, y + height - ry + (KAPPA * ry), x, y + height - ry);
|
2846 | ctx.lineTo(x, y + ry);
|
2847 | ctx.bezierCurveTo(x, y + ry - (KAPPA * ry), x + rx - (KAPPA * rx), y, x + rx, y);
|
2848 | ctx.closePath();
|
2849 | }
|
2850 | }
|
2851 | return new BoundingBox(x, y, x + width, y + height);
|
2852 | }
|
2853 | getMarkers() {
|
2854 | return null;
|
2855 | }
|
2856 | }
|
2857 |
|
2858 | class CircleElement extends PathElement {
|
2859 | constructor() {
|
2860 | super(...arguments);
|
2861 | this.type = 'circle';
|
2862 | }
|
2863 | path(ctx) {
|
2864 | const cx = this.getAttribute('cx').getPixels('x');
|
2865 | const cy = this.getAttribute('cy').getPixels('y');
|
2866 | const r = this.getAttribute('r').getPixels();
|
2867 | if (ctx && r > 0) {
|
2868 | ctx.beginPath();
|
2869 | ctx.arc(cx, cy, r, 0, Math.PI * 2, false);
|
2870 | ctx.closePath();
|
2871 | }
|
2872 | return new BoundingBox(cx - r, cy - r, cx + r, cy + r);
|
2873 | }
|
2874 | getMarkers() {
|
2875 | return null;
|
2876 | }
|
2877 | }
|
2878 |
|
2879 | class EllipseElement extends PathElement {
|
2880 | constructor() {
|
2881 | super(...arguments);
|
2882 | this.type = 'ellipse';
|
2883 | }
|
2884 | path(ctx) {
|
2885 | const KAPPA = 4 * ((Math.sqrt(2) - 1) / 3);
|
2886 | const rx = this.getAttribute('rx').getPixels('x');
|
2887 | const ry = this.getAttribute('ry').getPixels('y');
|
2888 | const cx = this.getAttribute('cx').getPixels('x');
|
2889 | const cy = this.getAttribute('cy').getPixels('y');
|
2890 | if (ctx && rx > 0 && ry > 0) {
|
2891 | ctx.beginPath();
|
2892 | ctx.moveTo(cx + rx, cy);
|
2893 | ctx.bezierCurveTo(cx + rx, cy + (KAPPA * ry), cx + (KAPPA * rx), cy + ry, cx, cy + ry);
|
2894 | ctx.bezierCurveTo(cx - (KAPPA * rx), cy + ry, cx - rx, cy + (KAPPA * ry), cx - rx, cy);
|
2895 | ctx.bezierCurveTo(cx - rx, cy - (KAPPA * ry), cx - (KAPPA * rx), cy - ry, cx, cy - ry);
|
2896 | ctx.bezierCurveTo(cx + (KAPPA * rx), cy - ry, cx + rx, cy - (KAPPA * ry), cx + rx, cy);
|
2897 | ctx.closePath();
|
2898 | }
|
2899 | return new BoundingBox(cx - rx, cy - ry, cx + rx, cy + ry);
|
2900 | }
|
2901 | getMarkers() {
|
2902 | return null;
|
2903 | }
|
2904 | }
|
2905 |
|
2906 | class LineElement extends PathElement {
|
2907 | constructor() {
|
2908 | super(...arguments);
|
2909 | this.type = 'line';
|
2910 | }
|
2911 | getPoints() {
|
2912 | return [
|
2913 | new Point(this.getAttribute('x1').getPixels('x'), this.getAttribute('y1').getPixels('y')),
|
2914 | new Point(this.getAttribute('x2').getPixels('x'), this.getAttribute('y2').getPixels('y'))
|
2915 | ];
|
2916 | }
|
2917 | path(ctx) {
|
2918 | const [{ x: x0, y: y0 }, { x: x1, y: y1 }] = this.getPoints();
|
2919 | if (ctx) {
|
2920 | ctx.beginPath();
|
2921 | ctx.moveTo(x0, y0);
|
2922 | ctx.lineTo(x1, y1);
|
2923 | }
|
2924 | return new BoundingBox(x0, y0, x1, y1);
|
2925 | }
|
2926 | getMarkers() {
|
2927 | const [p0, p1] = this.getPoints();
|
2928 | const a = p0.angleTo(p1);
|
2929 | return [
|
2930 | [p0, a],
|
2931 | [p1, a]
|
2932 | ];
|
2933 | }
|
2934 | }
|
2935 |
|
2936 | class PolylineElement extends PathElement {
|
2937 | constructor(document, node, captureTextNodes) {
|
2938 | super(document, node, captureTextNodes);
|
2939 | this.type = 'polyline';
|
2940 | this.points = [];
|
2941 | this.points = Point.parsePath(this.getAttribute('points').getString());
|
2942 | }
|
2943 | path(ctx) {
|
2944 | const { points } = this;
|
2945 | const [{ x: x0, y: y0 }] = points;
|
2946 | const boundingBox = new BoundingBox(x0, y0);
|
2947 | if (ctx) {
|
2948 | ctx.beginPath();
|
2949 | ctx.moveTo(x0, y0);
|
2950 | }
|
2951 | points.forEach(({ x, y }) => {
|
2952 | boundingBox.addPoint(x, y);
|
2953 | if (ctx) {
|
2954 | ctx.lineTo(x, y);
|
2955 | }
|
2956 | });
|
2957 | return boundingBox;
|
2958 | }
|
2959 | getMarkers() {
|
2960 | const { points } = this;
|
2961 | const lastIndex = points.length - 1;
|
2962 | const markers = [];
|
2963 | points.forEach((point, i) => {
|
2964 | if (i === lastIndex) {
|
2965 | return;
|
2966 | }
|
2967 | markers.push([
|
2968 | point,
|
2969 | point.angleTo(points[i + 1])
|
2970 | ]);
|
2971 | });
|
2972 | if (markers.length > 0) {
|
2973 | markers.push([
|
2974 | points[points.length - 1],
|
2975 | markers[markers.length - 1][1]
|
2976 | ]);
|
2977 | }
|
2978 | return markers;
|
2979 | }
|
2980 | }
|
2981 |
|
2982 | class PolygonElement extends PolylineElement {
|
2983 | constructor() {
|
2984 | super(...arguments);
|
2985 | this.type = 'polygon';
|
2986 | }
|
2987 | path(ctx) {
|
2988 | const boundingBox = super.path(ctx);
|
2989 | const [{ x, y }] = this.points;
|
2990 | if (ctx) {
|
2991 | ctx.lineTo(x, y);
|
2992 | ctx.closePath();
|
2993 | }
|
2994 | return boundingBox;
|
2995 | }
|
2996 | }
|
2997 |
|
2998 | class PatternElement extends Element {
|
2999 | constructor() {
|
3000 | super(...arguments);
|
3001 | this.type = 'pattern';
|
3002 | }
|
3003 | createPattern(ctx, _, parentOpacityProp) {
|
3004 | const width = this.getStyle('width').getPixels('x', true);
|
3005 | const height = this.getStyle('height').getPixels('y', true);
|
3006 |
|
3007 | const patternSvg = new SVGElement(this.document, null);
|
3008 | patternSvg.attributes.viewBox = new Property(this.document, 'viewBox', this.getAttribute('viewBox').getValue());
|
3009 | patternSvg.attributes.width = new Property(this.document, 'width', `${width}px`);
|
3010 | patternSvg.attributes.height = new Property(this.document, 'height', `${height}px`);
|
3011 | patternSvg.attributes.transform = new Property(this.document, 'transform', this.getAttribute('patternTransform').getValue());
|
3012 | patternSvg.children = this.children;
|
3013 | const patternCanvas = this.document.createCanvas(width, height);
|
3014 | const patternCtx = patternCanvas.getContext('2d');
|
3015 | const xAttr = this.getAttribute('x');
|
3016 | const yAttr = this.getAttribute('y');
|
3017 | if (xAttr.hasValue() && yAttr.hasValue()) {
|
3018 | patternCtx.translate(xAttr.getPixels('x', true), yAttr.getPixels('y', true));
|
3019 | }
|
3020 | if (parentOpacityProp.hasValue()) {
|
3021 | this.styles['fill-opacity'] = parentOpacityProp;
|
3022 | }
|
3023 | else {
|
3024 | Reflect.deleteProperty(this.styles, 'fill-opacity');
|
3025 | }
|
3026 |
|
3027 | for (let x = -1; x <= 1; x++) {
|
3028 | for (let y = -1; y <= 1; y++) {
|
3029 | patternCtx.save();
|
3030 | patternSvg.attributes.x = new Property(this.document, 'x', x * patternCanvas.width);
|
3031 | patternSvg.attributes.y = new Property(this.document, 'y', y * patternCanvas.height);
|
3032 | patternSvg.render(patternCtx);
|
3033 | patternCtx.restore();
|
3034 | }
|
3035 | }
|
3036 | const pattern = ctx.createPattern(patternCanvas, 'repeat');
|
3037 | return pattern;
|
3038 | }
|
3039 | }
|
3040 |
|
3041 | class MarkerElement extends Element {
|
3042 | constructor() {
|
3043 | super(...arguments);
|
3044 | this.type = 'marker';
|
3045 | }
|
3046 | render(ctx, point, angle) {
|
3047 | if (!point) {
|
3048 | return;
|
3049 | }
|
3050 | const { x, y } = point;
|
3051 | const orient = this.getAttribute('orient').getValue('auto');
|
3052 | const markerUnits = this.getAttribute('markerUnits').getValue('strokeWidth');
|
3053 | ctx.translate(x, y);
|
3054 | if (orient === 'auto') {
|
3055 | ctx.rotate(angle);
|
3056 | }
|
3057 | if (markerUnits === 'strokeWidth') {
|
3058 | ctx.scale(ctx.lineWidth, ctx.lineWidth);
|
3059 | }
|
3060 | ctx.save();
|
3061 |
|
3062 | const markerSvg = new SVGElement(this.document, null);
|
3063 | markerSvg.type = this.type;
|
3064 | markerSvg.attributes.viewBox = new Property(this.document, 'viewBox', this.getAttribute('viewBox').getValue());
|
3065 | markerSvg.attributes.refX = new Property(this.document, 'refX', this.getAttribute('refX').getValue());
|
3066 | markerSvg.attributes.refY = new Property(this.document, 'refY', this.getAttribute('refY').getValue());
|
3067 | markerSvg.attributes.width = new Property(this.document, 'width', this.getAttribute('markerWidth').getValue());
|
3068 | markerSvg.attributes.height = new Property(this.document, 'height', this.getAttribute('markerHeight').getValue());
|
3069 | markerSvg.attributes.overflow = new Property(this.document, 'overflow', this.getAttribute('overflow').getValue());
|
3070 | markerSvg.attributes.fill = new Property(this.document, 'fill', this.getAttribute('fill').getColor('black'));
|
3071 | markerSvg.attributes.stroke = new Property(this.document, 'stroke', this.getAttribute('stroke').getValue('none'));
|
3072 | markerSvg.children = this.children;
|
3073 | markerSvg.render(ctx);
|
3074 | ctx.restore();
|
3075 | if (markerUnits === 'strokeWidth') {
|
3076 | ctx.scale(1 / ctx.lineWidth, 1 / ctx.lineWidth);
|
3077 | }
|
3078 | if (orient === 'auto') {
|
3079 | ctx.rotate(-angle);
|
3080 | }
|
3081 | ctx.translate(-x, -y);
|
3082 | }
|
3083 | }
|
3084 |
|
3085 | class DefsElement extends Element {
|
3086 | constructor() {
|
3087 | super(...arguments);
|
3088 | this.type = 'defs';
|
3089 | }
|
3090 | render() {
|
3091 |
|
3092 | }
|
3093 | }
|
3094 |
|
3095 | class GElement extends RenderedElement {
|
3096 | constructor() {
|
3097 | super(...arguments);
|
3098 | this.type = 'g';
|
3099 | }
|
3100 | getBoundingBox(ctx) {
|
3101 | const boundingBox = new BoundingBox();
|
3102 | this.children.forEach((child) => {
|
3103 | boundingBox.addBoundingBox(child.getBoundingBox(ctx));
|
3104 | });
|
3105 | return boundingBox;
|
3106 | }
|
3107 | }
|
3108 |
|
3109 | class GradientElement extends Element {
|
3110 | constructor(document, node, captureTextNodes) {
|
3111 | super(document, node, captureTextNodes);
|
3112 | this.attributesToInherit = [
|
3113 | 'gradientUnits'
|
3114 | ];
|
3115 | this.stops = [];
|
3116 | const { stops, children } = this;
|
3117 | children.forEach((child) => {
|
3118 | if (child.type === 'stop') {
|
3119 | stops.push(child);
|
3120 | }
|
3121 | });
|
3122 | }
|
3123 | getGradientUnits() {
|
3124 | return this.getAttribute('gradientUnits').getString('objectBoundingBox');
|
3125 | }
|
3126 | createGradient(ctx, element, parentOpacityProp) {
|
3127 |
|
3128 | let stopsContainer = this;
|
3129 | if (this.getHrefAttribute().hasValue()) {
|
3130 | stopsContainer = this.getHrefAttribute().getDefinition();
|
3131 | this.inheritStopContainer(stopsContainer);
|
3132 | }
|
3133 | const { stops } = stopsContainer;
|
3134 | const gradient = this.getGradient(ctx, element);
|
3135 | if (!gradient) {
|
3136 | return this.addParentOpacity(parentOpacityProp, stops[stops.length - 1].color);
|
3137 | }
|
3138 | stops.forEach((stop) => {
|
3139 | gradient.addColorStop(stop.offset, this.addParentOpacity(parentOpacityProp, stop.color));
|
3140 | });
|
3141 | if (this.getAttribute('gradientTransform').hasValue()) {
|
3142 |
|
3143 | const { document } = this;
|
3144 | const { MAX_VIRTUAL_PIXELS, viewPort } = document.screen;
|
3145 | const [rootView] = viewPort.viewPorts;
|
3146 | const rect = new RectElement(document, null);
|
3147 | rect.attributes.x = new Property(document, 'x', -MAX_VIRTUAL_PIXELS / 3.0);
|
3148 | rect.attributes.y = new Property(document, 'y', -MAX_VIRTUAL_PIXELS / 3.0);
|
3149 | rect.attributes.width = new Property(document, 'width', MAX_VIRTUAL_PIXELS);
|
3150 | rect.attributes.height = new Property(document, 'height', MAX_VIRTUAL_PIXELS);
|
3151 | const group = new GElement(document, null);
|
3152 | group.attributes.transform = new Property(document, 'transform', this.getAttribute('gradientTransform').getValue());
|
3153 | group.children = [rect];
|
3154 | const patternSvg = new SVGElement(document, null);
|
3155 | patternSvg.attributes.x = new Property(document, 'x', 0);
|
3156 | patternSvg.attributes.y = new Property(document, 'y', 0);
|
3157 | patternSvg.attributes.width = new Property(document, 'width', rootView.width);
|
3158 | patternSvg.attributes.height = new Property(document, 'height', rootView.height);
|
3159 | patternSvg.children = [group];
|
3160 | const patternCanvas = document.createCanvas(rootView.width, rootView.height);
|
3161 | const patternCtx = patternCanvas.getContext('2d');
|
3162 | patternCtx.fillStyle = gradient;
|
3163 | patternSvg.render(patternCtx);
|
3164 | return patternCtx.createPattern(patternCanvas, 'no-repeat');
|
3165 | }
|
3166 | return gradient;
|
3167 | }
|
3168 | inheritStopContainer(stopsContainer) {
|
3169 | this.attributesToInherit.forEach((attributeToInherit) => {
|
3170 | if (!this.getAttribute(attributeToInherit).hasValue()
|
3171 | && stopsContainer.getAttribute(attributeToInherit).hasValue()) {
|
3172 | this.getAttribute(attributeToInherit, true)
|
3173 | .setValue(stopsContainer.getAttribute(attributeToInherit).getValue());
|
3174 | }
|
3175 | });
|
3176 | }
|
3177 | addParentOpacity(parentOpacityProp, color) {
|
3178 | if (parentOpacityProp.hasValue()) {
|
3179 | const colorProp = new Property(this.document, 'color', color);
|
3180 | return colorProp.addOpacity(parentOpacityProp).getColor();
|
3181 | }
|
3182 | return color;
|
3183 | }
|
3184 | }
|
3185 |
|
3186 | class LinearGradientElement extends GradientElement {
|
3187 | constructor(document, node, captureTextNodes) {
|
3188 | super(document, node, captureTextNodes);
|
3189 | this.type = 'linearGradient';
|
3190 | this.attributesToInherit.push('x1', 'y1', 'x2', 'y2');
|
3191 | }
|
3192 | getGradient(ctx, element) {
|
3193 | const isBoundingBoxUnits = this.getGradientUnits() === 'objectBoundingBox';
|
3194 | const boundingBox = isBoundingBoxUnits
|
3195 | ? element.getBoundingBox(ctx)
|
3196 | : null;
|
3197 | if (isBoundingBoxUnits && !boundingBox) {
|
3198 | return null;
|
3199 | }
|
3200 | if (!this.getAttribute('x1').hasValue()
|
3201 | && !this.getAttribute('y1').hasValue()
|
3202 | && !this.getAttribute('x2').hasValue()
|
3203 | && !this.getAttribute('y2').hasValue()) {
|
3204 | this.getAttribute('x1', true).setValue(0);
|
3205 | this.getAttribute('y1', true).setValue(0);
|
3206 | this.getAttribute('x2', true).setValue(1);
|
3207 | this.getAttribute('y2', true).setValue(0);
|
3208 | }
|
3209 | const x1 = isBoundingBoxUnits
|
3210 | ? boundingBox.x + boundingBox.width * this.getAttribute('x1').getNumber()
|
3211 | : this.getAttribute('x1').getPixels('x');
|
3212 | const y1 = isBoundingBoxUnits
|
3213 | ? boundingBox.y + boundingBox.height * this.getAttribute('y1').getNumber()
|
3214 | : this.getAttribute('y1').getPixels('y');
|
3215 | const x2 = isBoundingBoxUnits
|
3216 | ? boundingBox.x + boundingBox.width * this.getAttribute('x2').getNumber()
|
3217 | : this.getAttribute('x2').getPixels('x');
|
3218 | const y2 = isBoundingBoxUnits
|
3219 | ? boundingBox.y + boundingBox.height * this.getAttribute('y2').getNumber()
|
3220 | : this.getAttribute('y2').getPixels('y');
|
3221 | if (x1 === x2 && y1 === y2) {
|
3222 | return null;
|
3223 | }
|
3224 | return ctx.createLinearGradient(x1, y1, x2, y2);
|
3225 | }
|
3226 | }
|
3227 |
|
3228 | class RadialGradientElement extends GradientElement {
|
3229 | constructor(document, node, captureTextNodes) {
|
3230 | super(document, node, captureTextNodes);
|
3231 | this.type = 'radialGradient';
|
3232 | this.attributesToInherit.push('cx', 'cy', 'r', 'fx', 'fy', 'fr');
|
3233 | }
|
3234 | getGradient(ctx, element) {
|
3235 | const isBoundingBoxUnits = this.getGradientUnits() === 'objectBoundingBox';
|
3236 | const boundingBox = element.getBoundingBox(ctx);
|
3237 | if (isBoundingBoxUnits && !boundingBox) {
|
3238 | return null;
|
3239 | }
|
3240 | if (!this.getAttribute('cx').hasValue()) {
|
3241 | this.getAttribute('cx', true).setValue('50%');
|
3242 | }
|
3243 | if (!this.getAttribute('cy').hasValue()) {
|
3244 | this.getAttribute('cy', true).setValue('50%');
|
3245 | }
|
3246 | if (!this.getAttribute('r').hasValue()) {
|
3247 | this.getAttribute('r', true).setValue('50%');
|
3248 | }
|
3249 | const cx = isBoundingBoxUnits
|
3250 | ? boundingBox.x + boundingBox.width * this.getAttribute('cx').getNumber()
|
3251 | : this.getAttribute('cx').getPixels('x');
|
3252 | const cy = isBoundingBoxUnits
|
3253 | ? boundingBox.y + boundingBox.height * this.getAttribute('cy').getNumber()
|
3254 | : this.getAttribute('cy').getPixels('y');
|
3255 | let fx = cx;
|
3256 | let fy = cy;
|
3257 | if (this.getAttribute('fx').hasValue()) {
|
3258 | fx = isBoundingBoxUnits
|
3259 | ? boundingBox.x + boundingBox.width * this.getAttribute('fx').getNumber()
|
3260 | : this.getAttribute('fx').getPixels('x');
|
3261 | }
|
3262 | if (this.getAttribute('fy').hasValue()) {
|
3263 | fy = isBoundingBoxUnits
|
3264 | ? boundingBox.y + boundingBox.height * this.getAttribute('fy').getNumber()
|
3265 | : this.getAttribute('fy').getPixels('y');
|
3266 | }
|
3267 | const r = isBoundingBoxUnits
|
3268 | ? (boundingBox.width + boundingBox.height) / 2.0 * this.getAttribute('r').getNumber()
|
3269 | : this.getAttribute('r').getPixels();
|
3270 | const fr = this.getAttribute('fr').getPixels();
|
3271 | return ctx.createRadialGradient(fx, fy, fr, cx, cy, r);
|
3272 | }
|
3273 | }
|
3274 |
|
3275 | class StopElement extends Element {
|
3276 | constructor(document, node, captureTextNodes) {
|
3277 | super(document, node, captureTextNodes);
|
3278 | this.type = 'stop';
|
3279 | const offset = Math.max(0, Math.min(1, this.getAttribute('offset').getNumber()));
|
3280 | const stopOpacity = this.getStyle('stop-opacity');
|
3281 | let stopColor = this.getStyle('stop-color', true);
|
3282 | if (stopColor.getString() === '') {
|
3283 | stopColor.setValue('#000');
|
3284 | }
|
3285 | if (stopOpacity.hasValue()) {
|
3286 | stopColor = stopColor.addOpacity(stopOpacity);
|
3287 | }
|
3288 | this.offset = offset;
|
3289 | this.color = stopColor.getColor();
|
3290 | }
|
3291 | }
|
3292 |
|
3293 | class AnimateElement extends Element {
|
3294 | constructor(document, node, captureTextNodes) {
|
3295 | super(document, node, captureTextNodes);
|
3296 | this.type = 'animate';
|
3297 | this.duration = 0;
|
3298 | this.initialValue = null;
|
3299 | this.initialUnits = '';
|
3300 | this.removed = false;
|
3301 | this.frozen = false;
|
3302 | document.screen.animations.push(this);
|
3303 | this.begin = this.getAttribute('begin').getMilliseconds();
|
3304 | this.maxDuration = this.begin + this.getAttribute('dur').getMilliseconds();
|
3305 | this.from = this.getAttribute('from');
|
3306 | this.to = this.getAttribute('to');
|
3307 | this.values = this.getAttribute('values');
|
3308 | if (this.values.hasValue()) {
|
3309 | this.values.setValue(this.values.getString().split(';'));
|
3310 | }
|
3311 | }
|
3312 | getProperty() {
|
3313 | const attributeType = this.getAttribute('attributeType').getString();
|
3314 | const attributeName = this.getAttribute('attributeName').getString();
|
3315 | if (attributeType === 'CSS') {
|
3316 | return this.parent.getStyle(attributeName, true);
|
3317 | }
|
3318 | return this.parent.getAttribute(attributeName, true);
|
3319 | }
|
3320 | calcValue() {
|
3321 | const { initialUnits } = this;
|
3322 | const { progress, from, to } = this.getProgress();
|
3323 |
|
3324 | let newValue = from.getNumber() + (to.getNumber() - from.getNumber()) * progress;
|
3325 | if (initialUnits === '%') {
|
3326 | newValue *= 100.0;
|
3327 | }
|
3328 | return `${newValue}${initialUnits}`;
|
3329 | }
|
3330 | update(delta) {
|
3331 | const { parent } = this;
|
3332 | const prop = this.getProperty();
|
3333 |
|
3334 | if (!this.initialValue) {
|
3335 | this.initialValue = prop.getString();
|
3336 | this.initialUnits = prop.getUnits();
|
3337 | }
|
3338 |
|
3339 | if (this.duration > this.maxDuration) {
|
3340 | const fill = this.getAttribute('fill').getString('remove');
|
3341 |
|
3342 | if (this.getAttribute('repeatCount').getString() === 'indefinite'
|
3343 | || this.getAttribute('repeatDur').getString() === 'indefinite') {
|
3344 | this.duration = 0;
|
3345 | }
|
3346 | else if (fill === 'freeze' && !this.frozen) {
|
3347 | this.frozen = true;
|
3348 | parent.animationFrozen = true;
|
3349 | parent.animationFrozenValue = prop.getString();
|
3350 | }
|
3351 | else if (fill === 'remove' && !this.removed) {
|
3352 | this.removed = true;
|
3353 | prop.setValue(parent.animationFrozen
|
3354 | ? parent.animationFrozenValue
|
3355 | : this.initialValue);
|
3356 | return true;
|
3357 | }
|
3358 | return false;
|
3359 | }
|
3360 | this.duration += delta;
|
3361 |
|
3362 | let updated = false;
|
3363 | if (this.begin < this.duration) {
|
3364 | let newValue = this.calcValue();
|
3365 | const typeAttr = this.getAttribute('type');
|
3366 | if (typeAttr.hasValue()) {
|
3367 |
|
3368 | const type = typeAttr.getString();
|
3369 | newValue = `${type}(${newValue})`;
|
3370 | }
|
3371 | prop.setValue(newValue);
|
3372 | updated = true;
|
3373 | }
|
3374 | return updated;
|
3375 | }
|
3376 | getProgress() {
|
3377 | const { document, values } = this;
|
3378 | const result = {
|
3379 | progress: (this.duration - this.begin) / (this.maxDuration - this.begin)
|
3380 | };
|
3381 | if (values.hasValue()) {
|
3382 | const p = result.progress * (values.getValue().length - 1);
|
3383 | const lb = Math.floor(p);
|
3384 | const ub = Math.ceil(p);
|
3385 | result.from = new Property(document, 'from', parseFloat(values.getValue()[lb]));
|
3386 | result.to = new Property(document, 'to', parseFloat(values.getValue()[ub]));
|
3387 | result.progress = (p - lb) / (ub - lb);
|
3388 | }
|
3389 | else {
|
3390 | result.from = this.from;
|
3391 | result.to = this.to;
|
3392 | }
|
3393 | return result;
|
3394 | }
|
3395 | }
|
3396 |
|
3397 | class AnimateColorElement extends AnimateElement {
|
3398 | constructor() {
|
3399 | super(...arguments);
|
3400 | this.type = 'animateColor';
|
3401 | }
|
3402 | calcValue() {
|
3403 | const { progress, from, to } = this.getProgress();
|
3404 | const colorFrom = new RGBColor(from.getColor());
|
3405 | const colorTo = new RGBColor(to.getColor());
|
3406 | if (colorFrom.ok && colorTo.ok) {
|
3407 |
|
3408 | const r = colorFrom.r + (colorTo.r - colorFrom.r) * progress;
|
3409 | const g = colorFrom.g + (colorTo.g - colorFrom.g) * progress;
|
3410 | const b = colorFrom.b + (colorTo.b - colorFrom.b) * progress;
|
3411 |
|
3412 | return `rgb(${parseInt(r, 10)}, ${parseInt(g, 10)}, ${parseInt(b, 10)})`;
|
3413 | }
|
3414 | return this.getAttribute('from').getColor();
|
3415 | }
|
3416 | }
|
3417 |
|
3418 | class AnimateTransformElement extends AnimateElement {
|
3419 | constructor() {
|
3420 | super(...arguments);
|
3421 | this.type = 'animateTransform';
|
3422 | }
|
3423 | calcValue() {
|
3424 | const { progress, from, to } = this.getProgress();
|
3425 |
|
3426 | const transformFrom = toNumbers(from.getString());
|
3427 | const transformTo = toNumbers(to.getString());
|
3428 | const newValue = transformFrom.map((from, i) => {
|
3429 | const to = transformTo[i];
|
3430 | return from + (to - from) * progress;
|
3431 | }).join(' ');
|
3432 | return newValue;
|
3433 | }
|
3434 | }
|
3435 |
|
3436 | class FontElement extends Element {
|
3437 | constructor(document, node, captureTextNodes) {
|
3438 | super(document, node, captureTextNodes);
|
3439 | this.type = 'font';
|
3440 | this.glyphs = {};
|
3441 | this.horizAdvX = this.getAttribute('horiz-adv-x').getNumber();
|
3442 | const { definitions } = document;
|
3443 | const { children } = this;
|
3444 | for (const child of children) {
|
3445 | switch (child.type) {
|
3446 | case 'font-face': {
|
3447 | this.fontFace = child;
|
3448 | const fontFamilyStyle = child.getStyle('font-family');
|
3449 | if (fontFamilyStyle.hasValue()) {
|
3450 | definitions[fontFamilyStyle.getString()] = this;
|
3451 | }
|
3452 | break;
|
3453 | }
|
3454 | case 'missing-glyph':
|
3455 | this.missingGlyph = child;
|
3456 | break;
|
3457 | case 'glyph': {
|
3458 | const glyph = child;
|
3459 | if (glyph.arabicForm) {
|
3460 | this.isRTL = true;
|
3461 | this.isArabic = true;
|
3462 | if (typeof this.glyphs[glyph.unicode] === 'undefined') {
|
3463 | this.glyphs[glyph.unicode] = {};
|
3464 | }
|
3465 | this.glyphs[glyph.unicode][glyph.arabicForm] = glyph;
|
3466 | }
|
3467 | else {
|
3468 | this.glyphs[glyph.unicode] = glyph;
|
3469 | }
|
3470 | break;
|
3471 | }
|
3472 | }
|
3473 | }
|
3474 | }
|
3475 | render() {
|
3476 |
|
3477 | }
|
3478 | }
|
3479 |
|
3480 | class FontFaceElement extends Element {
|
3481 | constructor(document, node, captureTextNodes) {
|
3482 | super(document, node, captureTextNodes);
|
3483 | this.type = 'font-face';
|
3484 | this.ascent = this.getAttribute('ascent').getNumber();
|
3485 | this.descent = this.getAttribute('descent').getNumber();
|
3486 | this.unitsPerEm = this.getAttribute('units-per-em').getNumber();
|
3487 | }
|
3488 | }
|
3489 |
|
3490 | class MissingGlyphElement extends PathElement {
|
3491 | constructor() {
|
3492 | super(...arguments);
|
3493 | this.type = 'missing-glyph';
|
3494 | this.horizAdvX = 0;
|
3495 | }
|
3496 | }
|
3497 |
|
3498 | class GlyphElement extends PathElement {
|
3499 | constructor(document, node, captureTextNodes) {
|
3500 | super(document, node, captureTextNodes);
|
3501 | this.type = 'glyph';
|
3502 | this.horizAdvX = this.getAttribute('horiz-adv-x').getNumber();
|
3503 | this.unicode = this.getAttribute('unicode').getString();
|
3504 | this.arabicForm = this.getAttribute('arabic-form').getString();
|
3505 | }
|
3506 | }
|
3507 |
|
3508 | class TRefElement extends TextElement {
|
3509 | constructor() {
|
3510 | super(...arguments);
|
3511 | this.type = 'tref';
|
3512 | }
|
3513 | getText() {
|
3514 | const element = this.getHrefAttribute().getDefinition();
|
3515 | if (element) {
|
3516 | const firstChild = element.children[0];
|
3517 | if (firstChild) {
|
3518 | return firstChild.getText();
|
3519 | }
|
3520 | }
|
3521 | return '';
|
3522 | }
|
3523 | }
|
3524 |
|
3525 | class AElement extends TextElement {
|
3526 | constructor(document, node, captureTextNodes) {
|
3527 | super(document, node, captureTextNodes);
|
3528 | this.type = 'a';
|
3529 | const { childNodes } = node;
|
3530 | const firstChild = childNodes[0];
|
3531 | const hasText = childNodes.length > 0
|
3532 | && Array.from(childNodes).every(node => node.nodeType === 3);
|
3533 | this.hasText = hasText;
|
3534 | this.text = hasText
|
3535 | ? this.getTextFromNode(firstChild)
|
3536 | : '';
|
3537 | }
|
3538 | getText() {
|
3539 | return this.text;
|
3540 | }
|
3541 | renderChildren(ctx) {
|
3542 | if (this.hasText) {
|
3543 |
|
3544 | super.renderChildren(ctx);
|
3545 | const { document, x, y } = this;
|
3546 | const { mouse } = document.screen;
|
3547 | const fontSize = new Property(document, 'fontSize', Font.parse(document.ctx.font).fontSize);
|
3548 |
|
3549 | if (mouse.isWorking()) {
|
3550 | mouse.checkBoundingBox(this, new BoundingBox(x, y - fontSize.getPixels('y'), x + this.measureText(ctx), y));
|
3551 | }
|
3552 | }
|
3553 | else if (this.children.length > 0) {
|
3554 |
|
3555 | const g = new GElement(this.document, null);
|
3556 | g.children = this.children;
|
3557 | g.parent = this;
|
3558 | g.render(ctx);
|
3559 | }
|
3560 | }
|
3561 | onClick() {
|
3562 | const { window } = this.document;
|
3563 | if (window) {
|
3564 | window.open(this.getHrefAttribute().getString());
|
3565 | }
|
3566 | }
|
3567 | onMouseMove() {
|
3568 | const ctx = this.document.ctx;
|
3569 | ctx.canvas.style.cursor = 'pointer';
|
3570 | }
|
3571 | }
|
3572 |
|
3573 | class TextPathElement extends TextElement {
|
3574 | constructor(document, node, captureTextNodes) {
|
3575 | super(document, node, captureTextNodes);
|
3576 | this.type = 'textPath';
|
3577 | this.textWidth = 0;
|
3578 | this.textHeight = 0;
|
3579 | this.pathLength = -1;
|
3580 | this.glyphInfo = null;
|
3581 | this.letterSpacingCache = [];
|
3582 | this.measuresCache = new Map([['', 0]]);
|
3583 | const pathElement = this.getHrefAttribute().getDefinition();
|
3584 | this.text = this.getTextFromNode();
|
3585 | this.dataArray = this.parsePathData(pathElement);
|
3586 | }
|
3587 | getText() {
|
3588 | return this.text;
|
3589 | }
|
3590 | path(ctx) {
|
3591 | const { dataArray } = this;
|
3592 | if (ctx) {
|
3593 | ctx.beginPath();
|
3594 | }
|
3595 | dataArray.forEach(({ type, points }) => {
|
3596 | switch (type) {
|
3597 | case PathParser.LINE_TO:
|
3598 | if (ctx) {
|
3599 | ctx.lineTo(points[0], points[1]);
|
3600 | }
|
3601 | break;
|
3602 | case PathParser.MOVE_TO:
|
3603 | if (ctx) {
|
3604 | ctx.moveTo(points[0], points[1]);
|
3605 | }
|
3606 | break;
|
3607 | case PathParser.CURVE_TO:
|
3608 | if (ctx) {
|
3609 | ctx.bezierCurveTo(points[0], points[1], points[2], points[3], points[4], points[5]);
|
3610 | }
|
3611 | break;
|
3612 | case PathParser.QUAD_TO:
|
3613 | if (ctx) {
|
3614 | ctx.quadraticCurveTo(points[0], points[1], points[2], points[3]);
|
3615 | }
|
3616 | break;
|
3617 | case PathParser.ARC: {
|
3618 | const [cx, cy, rx, ry, theta, dTheta, psi, fs] = points;
|
3619 | const r = (rx > ry) ? rx : ry;
|
3620 | const scaleX = (rx > ry) ? 1 : rx / ry;
|
3621 | const scaleY = (rx > ry) ? ry / rx : 1;
|
3622 | if (ctx) {
|
3623 | ctx.translate(cx, cy);
|
3624 | ctx.rotate(psi);
|
3625 | ctx.scale(scaleX, scaleY);
|
3626 | ctx.arc(0, 0, r, theta, theta + dTheta, Boolean(1 - fs));
|
3627 | ctx.scale(1 / scaleX, 1 / scaleY);
|
3628 | ctx.rotate(-psi);
|
3629 | ctx.translate(-cx, -cy);
|
3630 | }
|
3631 | break;
|
3632 | }
|
3633 | case PathParser.CLOSE_PATH:
|
3634 | if (ctx) {
|
3635 | ctx.closePath();
|
3636 | }
|
3637 | break;
|
3638 | }
|
3639 | });
|
3640 | }
|
3641 | renderChildren(ctx) {
|
3642 | this.setTextData(ctx);
|
3643 | ctx.save();
|
3644 | const textDecoration = this.parent.getStyle('text-decoration').getString();
|
3645 | const fontSize = this.getFontSize();
|
3646 | const { glyphInfo } = this;
|
3647 | const fill = ctx.fillStyle;
|
3648 | if (textDecoration === 'underline') {
|
3649 | ctx.beginPath();
|
3650 | }
|
3651 | glyphInfo.forEach((glyph, i) => {
|
3652 | const { p0, p1, rotation, text: partialText } = glyph;
|
3653 | ctx.save();
|
3654 | ctx.translate(p0.x, p0.y);
|
3655 | ctx.rotate(rotation);
|
3656 | if (ctx.fillStyle) {
|
3657 | ctx.fillText(partialText, 0, 0);
|
3658 | }
|
3659 | if (ctx.strokeStyle) {
|
3660 | ctx.strokeText(partialText, 0, 0);
|
3661 | }
|
3662 | ctx.restore();
|
3663 | if (textDecoration === 'underline') {
|
3664 | if (i === 0) {
|
3665 | ctx.moveTo(p0.x, p0.y + fontSize / 8);
|
3666 | }
|
3667 | ctx.lineTo(p1.x, p1.y + fontSize / 5);
|
3668 | }
|
3669 |
|
3670 |
|
3671 |
|
3672 |
|
3673 |
|
3674 |
|
3675 |
|
3676 |
|
3677 |
|
3678 |
|
3679 |
|
3680 | });
|
3681 | if (textDecoration === 'underline') {
|
3682 | ctx.lineWidth = fontSize / 20;
|
3683 | ctx.strokeStyle = fill;
|
3684 | ctx.stroke();
|
3685 | ctx.closePath();
|
3686 | }
|
3687 | ctx.restore();
|
3688 | }
|
3689 | getLetterSpacingAt(idx = 0) {
|
3690 | return this.letterSpacingCache[idx] || 0;
|
3691 | }
|
3692 | findSegmentToFitChar(ctx, anchor, textFullWidth, fullPathWidth, spacesNumber, inputOffset, dy, c, charI) {
|
3693 | let offset = inputOffset;
|
3694 | let glyphWidth = this.measureText(ctx, c);
|
3695 | if (c === ' '
|
3696 | && anchor === 'justify'
|
3697 | && textFullWidth < fullPathWidth) {
|
3698 | glyphWidth += (fullPathWidth - textFullWidth) / spacesNumber;
|
3699 | }
|
3700 | if (charI > -1) {
|
3701 | offset += this.getLetterSpacingAt(charI);
|
3702 | }
|
3703 | const splineStep = this.textHeight / 20;
|
3704 | const p0 = this.getEquidistantPointOnPath(offset, splineStep, 0);
|
3705 | const p1 = this.getEquidistantPointOnPath(offset + glyphWidth, splineStep, 0);
|
3706 | const segment = {
|
3707 | p0,
|
3708 | p1
|
3709 | };
|
3710 | const rotation = p0 && p1
|
3711 | ? Math.atan2((p1.y - p0.y), (p1.x - p0.x))
|
3712 | : 0;
|
3713 | if (dy) {
|
3714 | const dyX = Math.cos(Math.PI / 2 + rotation) * dy;
|
3715 | const dyY = Math.cos(-rotation) * dy;
|
3716 | segment.p0 = {
|
3717 | ...p0,
|
3718 | x: p0.x + dyX,
|
3719 | y: p0.y + dyY
|
3720 | };
|
3721 | segment.p1 = {
|
3722 | ...p1,
|
3723 | x: p1.x + dyX,
|
3724 | y: p1.y + dyY
|
3725 | };
|
3726 | }
|
3727 | offset += glyphWidth;
|
3728 | return {
|
3729 | offset,
|
3730 | segment,
|
3731 | rotation
|
3732 | };
|
3733 | }
|
3734 | measureText(ctx, text) {
|
3735 | const { measuresCache } = this;
|
3736 | const targetText = text || this.getText();
|
3737 | if (measuresCache.has(targetText)) {
|
3738 | return measuresCache.get(targetText);
|
3739 | }
|
3740 | const measure = this.measureTargetText(ctx, targetText);
|
3741 | measuresCache.set(targetText, measure);
|
3742 | return measure;
|
3743 | }
|
3744 |
|
3745 |
|
3746 |
|
3747 | setTextData(ctx) {
|
3748 | if (this.glyphInfo) {
|
3749 | return;
|
3750 | }
|
3751 | const renderText = this.getText();
|
3752 | const chars = renderText.split('');
|
3753 | const spacesNumber = renderText.split(' ').length - 1;
|
3754 | const dx = this.parent.getAttribute('dx').split().map(_ => _.getPixels('x'));
|
3755 | const dy = this.parent.getAttribute('dy').getPixels('y');
|
3756 | const anchor = this.parent.getStyle('text-anchor').getString('start');
|
3757 | const thisSpacing = this.getStyle('letter-spacing');
|
3758 | const parentSpacing = this.parent.getStyle('letter-spacing');
|
3759 | let letterSpacing = 0;
|
3760 | if (!thisSpacing.hasValue()
|
3761 | || thisSpacing.getValue() === 'inherit') {
|
3762 | letterSpacing = parentSpacing.getPixels();
|
3763 | }
|
3764 | else if (thisSpacing.hasValue()) {
|
3765 | if (thisSpacing.getValue() !== 'initial'
|
3766 | && thisSpacing.getValue() !== 'unset') {
|
3767 | letterSpacing = thisSpacing.getPixels();
|
3768 | }
|
3769 | }
|
3770 |
|
3771 | const letterSpacingCache = [];
|
3772 | const textLen = renderText.length;
|
3773 | this.letterSpacingCache = letterSpacingCache;
|
3774 | for (let i = 0; i < textLen; i++) {
|
3775 | letterSpacingCache.push(typeof dx[i] !== 'undefined'
|
3776 | ? dx[i]
|
3777 | : letterSpacing);
|
3778 | }
|
3779 | const dxSum = letterSpacingCache.reduce((acc, cur, i) => (i === 0
|
3780 | ? 0
|
3781 | : (acc + cur || 0)), 0);
|
3782 | const textWidth = this.measureText(ctx);
|
3783 | const textFullWidth = Math.max(textWidth + dxSum, 0);
|
3784 | this.textWidth = textWidth;
|
3785 | this.textHeight = this.getFontSize();
|
3786 | this.glyphInfo = [];
|
3787 | const fullPathWidth = this.getPathLength();
|
3788 | const startOffset = this.getStyle('startOffset').getNumber(0) * fullPathWidth;
|
3789 | let offset = 0;
|
3790 | if (anchor === 'middle'
|
3791 | || anchor === 'center') {
|
3792 | offset = -textFullWidth / 2;
|
3793 | }
|
3794 | if (anchor === 'end'
|
3795 | || anchor === 'right') {
|
3796 | offset = -textFullWidth;
|
3797 | }
|
3798 | offset += startOffset;
|
3799 | chars.forEach((char, i) => {
|
3800 |
|
3801 | const { offset: nextOffset, segment, rotation } = this.findSegmentToFitChar(ctx, anchor, textFullWidth, fullPathWidth, spacesNumber, offset, dy, char, i);
|
3802 | offset = nextOffset;
|
3803 | if (!segment.p0 || !segment.p1) {
|
3804 | return;
|
3805 | }
|
3806 |
|
3807 |
|
3808 |
|
3809 |
|
3810 |
|
3811 |
|
3812 |
|
3813 |
|
3814 |
|
3815 |
|
3816 |
|
3817 |
|
3818 |
|
3819 |
|
3820 |
|
3821 | this.glyphInfo.push({
|
3822 |
|
3823 |
|
3824 | text: chars[i],
|
3825 | p0: segment.p0,
|
3826 | p1: segment.p1,
|
3827 | rotation
|
3828 | });
|
3829 | });
|
3830 | }
|
3831 | parsePathData(path) {
|
3832 | this.pathLength = -1;
|
3833 | if (!path) {
|
3834 | return [];
|
3835 | }
|
3836 | const pathCommands = [];
|
3837 | const pathParser = path.pathParser;
|
3838 | pathParser.reset();
|
3839 |
|
3840 | while (!pathParser.isEnd()) {
|
3841 | const { current } = pathParser;
|
3842 | const startX = current ? current.x : 0;
|
3843 | const startY = current ? current.y : 0;
|
3844 | const command = pathParser.next();
|
3845 | let nextCommandType = command.type;
|
3846 | let points = [];
|
3847 | switch (command.type) {
|
3848 | case PathParser.MOVE_TO:
|
3849 | this.pathM(pathParser, points);
|
3850 | break;
|
3851 | case PathParser.LINE_TO:
|
3852 | nextCommandType = this.pathL(pathParser, points);
|
3853 | break;
|
3854 | case PathParser.HORIZ_LINE_TO:
|
3855 | nextCommandType = this.pathH(pathParser, points);
|
3856 | break;
|
3857 | case PathParser.VERT_LINE_TO:
|
3858 | nextCommandType = this.pathV(pathParser, points);
|
3859 | break;
|
3860 | case PathParser.CURVE_TO:
|
3861 | this.pathC(pathParser, points);
|
3862 | break;
|
3863 | case PathParser.SMOOTH_CURVE_TO:
|
3864 | nextCommandType = this.pathS(pathParser, points);
|
3865 | break;
|
3866 | case PathParser.QUAD_TO:
|
3867 | this.pathQ(pathParser, points);
|
3868 | break;
|
3869 | case PathParser.SMOOTH_QUAD_TO:
|
3870 | nextCommandType = this.pathT(pathParser, points);
|
3871 | break;
|
3872 | case PathParser.ARC:
|
3873 | points = this.pathA(pathParser);
|
3874 | break;
|
3875 | case PathParser.CLOSE_PATH:
|
3876 | PathElement.pathZ(pathParser);
|
3877 | break;
|
3878 | }
|
3879 | if (command.type !== PathParser.CLOSE_PATH) {
|
3880 | pathCommands.push({
|
3881 | type: nextCommandType,
|
3882 | points,
|
3883 | start: {
|
3884 | x: startX,
|
3885 | y: startY
|
3886 | },
|
3887 | pathLength: this.calcLength(startX, startY, nextCommandType, points)
|
3888 | });
|
3889 | }
|
3890 | else {
|
3891 | pathCommands.push({
|
3892 | type: PathParser.CLOSE_PATH,
|
3893 | points: [],
|
3894 | pathLength: 0
|
3895 | });
|
3896 | }
|
3897 | }
|
3898 | return pathCommands;
|
3899 | }
|
3900 | pathM(pathParser, points) {
|
3901 | const { x, y } = PathElement.pathM(pathParser).point;
|
3902 | points.push(x, y);
|
3903 | }
|
3904 | pathL(pathParser, points) {
|
3905 | const { x, y } = PathElement.pathL(pathParser).point;
|
3906 | points.push(x, y);
|
3907 | return PathParser.LINE_TO;
|
3908 | }
|
3909 | pathH(pathParser, points) {
|
3910 | const { x, y } = PathElement.pathH(pathParser).point;
|
3911 | points.push(x, y);
|
3912 | return PathParser.LINE_TO;
|
3913 | }
|
3914 | pathV(pathParser, points) {
|
3915 | const { x, y } = PathElement.pathV(pathParser).point;
|
3916 | points.push(x, y);
|
3917 | return PathParser.LINE_TO;
|
3918 | }
|
3919 | pathC(pathParser, points) {
|
3920 | const { point, controlPoint, currentPoint } = PathElement.pathC(pathParser);
|
3921 | points.push(point.x, point.y, controlPoint.x, controlPoint.y, currentPoint.x, currentPoint.y);
|
3922 | }
|
3923 | pathS(pathParser, points) {
|
3924 | const { point, controlPoint, currentPoint } = PathElement.pathS(pathParser);
|
3925 | points.push(point.x, point.y, controlPoint.x, controlPoint.y, currentPoint.x, currentPoint.y);
|
3926 | return PathParser.CURVE_TO;
|
3927 | }
|
3928 | pathQ(pathParser, points) {
|
3929 | const { controlPoint, currentPoint } = PathElement.pathQ(pathParser);
|
3930 | points.push(controlPoint.x, controlPoint.y, currentPoint.x, currentPoint.y);
|
3931 | }
|
3932 | pathT(pathParser, points) {
|
3933 | const { controlPoint, currentPoint } = PathElement.pathT(pathParser);
|
3934 | points.push(controlPoint.x, controlPoint.y, currentPoint.x, currentPoint.y);
|
3935 | return PathParser.QUAD_TO;
|
3936 | }
|
3937 | pathA(pathParser) {
|
3938 | let { rX, rY, sweepFlag, xAxisRotation, centp, a1, ad } = PathElement.pathA(pathParser);
|
3939 | if (sweepFlag === 0 && ad > 0) {
|
3940 | ad = ad - 2 * Math.PI;
|
3941 | }
|
3942 | if (sweepFlag === 1 && ad < 0) {
|
3943 | ad = ad + 2 * Math.PI;
|
3944 | }
|
3945 | return [
|
3946 | centp.x,
|
3947 | centp.y,
|
3948 | rX,
|
3949 | rY,
|
3950 | a1,
|
3951 | ad,
|
3952 | xAxisRotation,
|
3953 | sweepFlag
|
3954 | ];
|
3955 | }
|
3956 | calcLength(x, y, commandType, points) {
|
3957 | let len = 0;
|
3958 | let p1 = null;
|
3959 | let p2 = null;
|
3960 | let t = 0;
|
3961 | switch (commandType) {
|
3962 | case PathParser.LINE_TO:
|
3963 | return this.getLineLength(x, y, points[0], points[1]);
|
3964 | case PathParser.CURVE_TO:
|
3965 |
|
3966 | len = 0.0;
|
3967 | p1 = this.getPointOnCubicBezier(0, x, y, points[0], points[1], points[2], points[3], points[4], points[5]);
|
3968 | for (t = 0.01; t <= 1; t += 0.01) {
|
3969 | p2 = this.getPointOnCubicBezier(t, x, y, points[0], points[1], points[2], points[3], points[4], points[5]);
|
3970 | len += this.getLineLength(p1.x, p1.y, p2.x, p2.y);
|
3971 | p1 = p2;
|
3972 | }
|
3973 | return len;
|
3974 | case PathParser.QUAD_TO:
|
3975 |
|
3976 | len = 0.0;
|
3977 | p1 = this.getPointOnQuadraticBezier(0, x, y, points[0], points[1], points[2], points[3]);
|
3978 | for (t = 0.01; t <= 1; t += 0.01) {
|
3979 | p2 = this.getPointOnQuadraticBezier(t, x, y, points[0], points[1], points[2], points[3]);
|
3980 | len += this.getLineLength(p1.x, p1.y, p2.x, p2.y);
|
3981 | p1 = p2;
|
3982 | }
|
3983 | return len;
|
3984 | case PathParser.ARC:
|
3985 |
|
3986 | len = 0.0;
|
3987 | const start = points[4];
|
3988 |
|
3989 | const dTheta = points[5];
|
3990 |
|
3991 | const end = points[4] + dTheta;
|
3992 | let inc = Math.PI / 180.0;
|
3993 |
|
3994 | if (Math.abs(start - end) < inc) {
|
3995 | inc = Math.abs(start - end);
|
3996 | }
|
3997 |
|
3998 | p1 = this.getPointOnEllipticalArc(points[0], points[1], points[2], points[3], start, 0);
|
3999 | if (dTheta < 0) {
|
4000 | for (t = start - inc; t > end; t -= inc) {
|
4001 | p2 = this.getPointOnEllipticalArc(points[0], points[1], points[2], points[3], t, 0);
|
4002 | len += this.getLineLength(p1.x, p1.y, p2.x, p2.y);
|
4003 | p1 = p2;
|
4004 | }
|
4005 | }
|
4006 | else {
|
4007 | for (t = start + inc; t < end; t += inc) {
|
4008 | p2 = this.getPointOnEllipticalArc(points[0], points[1], points[2], points[3], t, 0);
|
4009 | len += this.getLineLength(p1.x, p1.y, p2.x, p2.y);
|
4010 | p1 = p2;
|
4011 | }
|
4012 | }
|
4013 | p2 = this.getPointOnEllipticalArc(points[0], points[1], points[2], points[3], end, 0);
|
4014 | len += this.getLineLength(p1.x, p1.y, p2.x, p2.y);
|
4015 | return len;
|
4016 | }
|
4017 | return 0;
|
4018 | }
|
4019 | getPointOnLine(dist, P1x, P1y, P2x, P2y, fromX = P1x, fromY = P1y) {
|
4020 | const m = (P2y - P1y) / ((P2x - P1x) + PSEUDO_ZERO);
|
4021 | let run = Math.sqrt(dist * dist / (1 + m * m));
|
4022 | if (P2x < P1x) {
|
4023 | run *= -1;
|
4024 | }
|
4025 | let rise = m * run;
|
4026 | let pt = null;
|
4027 | if (P2x === P1x) {
|
4028 | pt = {
|
4029 | x: fromX,
|
4030 | y: fromY + rise
|
4031 | };
|
4032 | }
|
4033 | else if ((fromY - P1y) / ((fromX - P1x) + PSEUDO_ZERO) === m) {
|
4034 | pt = {
|
4035 | x: fromX + run,
|
4036 | y: fromY + rise
|
4037 | };
|
4038 | }
|
4039 | else {
|
4040 | let ix = 0;
|
4041 | let iy = 0;
|
4042 | const len = this.getLineLength(P1x, P1y, P2x, P2y);
|
4043 | if (len < PSEUDO_ZERO) {
|
4044 | return null;
|
4045 | }
|
4046 | let u = (((fromX - P1x) * (P2x - P1x))
|
4047 | + ((fromY - P1y) * (P2y - P1y)));
|
4048 | u = u / (len * len);
|
4049 | ix = P1x + u * (P2x - P1x);
|
4050 | iy = P1y + u * (P2y - P1y);
|
4051 | const pRise = this.getLineLength(fromX, fromY, ix, iy);
|
4052 | const pRun = Math.sqrt(dist * dist - pRise * pRise);
|
4053 | run = Math.sqrt(pRun * pRun / (1 + m * m));
|
4054 | if (P2x < P1x) {
|
4055 | run *= -1;
|
4056 | }
|
4057 | rise = m * run;
|
4058 | pt = {
|
4059 | x: ix + run,
|
4060 | y: iy + rise
|
4061 | };
|
4062 | }
|
4063 | return pt;
|
4064 | }
|
4065 | getPointOnPath(distance) {
|
4066 | const fullLen = this.getPathLength();
|
4067 | let cumulativePathLength = 0;
|
4068 | let p = null;
|
4069 | if (distance < -0.00005
|
4070 | || distance - 0.00005 > fullLen) {
|
4071 | return null;
|
4072 | }
|
4073 | const { dataArray } = this;
|
4074 | for (const command of dataArray) {
|
4075 | if (command
|
4076 | && (command.pathLength < 0.00005
|
4077 | || cumulativePathLength + command.pathLength + 0.00005 < distance)) {
|
4078 | cumulativePathLength += command.pathLength;
|
4079 | continue;
|
4080 | }
|
4081 | const delta = distance - cumulativePathLength;
|
4082 | let currentT = 0;
|
4083 | switch (command.type) {
|
4084 | case PathParser.LINE_TO:
|
4085 | p = this.getPointOnLine(delta, command.start.x, command.start.y, command.points[0], command.points[1], command.start.x, command.start.y);
|
4086 | break;
|
4087 | case PathParser.ARC:
|
4088 | const start = command.points[4];
|
4089 |
|
4090 | const dTheta = command.points[5];
|
4091 |
|
4092 | const end = command.points[4] + dTheta;
|
4093 | currentT = start + delta / command.pathLength * dTheta;
|
4094 | if (dTheta < 0 && currentT < end
|
4095 | || dTheta >= 0 && currentT > end) {
|
4096 | break;
|
4097 | }
|
4098 | p = this.getPointOnEllipticalArc(command.points[0], command.points[1], command.points[2], command.points[3], currentT, command.points[6]);
|
4099 | break;
|
4100 | case PathParser.CURVE_TO:
|
4101 | currentT = delta / command.pathLength;
|
4102 | if (currentT > 1) {
|
4103 | currentT = 1;
|
4104 | }
|
4105 | p = this.getPointOnCubicBezier(currentT, command.start.x, command.start.y, command.points[0], command.points[1], command.points[2], command.points[3], command.points[4], command.points[5]);
|
4106 | break;
|
4107 | case PathParser.QUAD_TO:
|
4108 | currentT = delta / command.pathLength;
|
4109 | if (currentT > 1) {
|
4110 | currentT = 1;
|
4111 | }
|
4112 | p = this.getPointOnQuadraticBezier(currentT, command.start.x, command.start.y, command.points[0], command.points[1], command.points[2], command.points[3]);
|
4113 | break;
|
4114 | }
|
4115 | if (p) {
|
4116 | return p;
|
4117 | }
|
4118 | break;
|
4119 | }
|
4120 | return null;
|
4121 | }
|
4122 | getLineLength(x1, y1, x2, y2) {
|
4123 | return Math.sqrt((x2 - x1) * (x2 - x1)
|
4124 | + (y2 - y1) * (y2 - y1));
|
4125 | }
|
4126 | getPathLength() {
|
4127 | if (this.pathLength === -1) {
|
4128 | this.pathLength = this.dataArray.reduce((length, command) => (command.pathLength > 0
|
4129 | ? length + command.pathLength
|
4130 | : length), 0);
|
4131 | }
|
4132 | return this.pathLength;
|
4133 | }
|
4134 | getPointOnCubicBezier(pct, P1x, P1y, P2x, P2y, P3x, P3y, P4x, P4y) {
|
4135 | const x = P4x * CB1(pct) + P3x * CB2(pct) + P2x * CB3(pct) + P1x * CB4(pct);
|
4136 | const y = P4y * CB1(pct) + P3y * CB2(pct) + P2y * CB3(pct) + P1y * CB4(pct);
|
4137 | return {
|
4138 | x,
|
4139 | y
|
4140 | };
|
4141 | }
|
4142 | getPointOnQuadraticBezier(pct, P1x, P1y, P2x, P2y, P3x, P3y) {
|
4143 | const x = P3x * QB1(pct) + P2x * QB2(pct) + P1x * QB3(pct);
|
4144 | const y = P3y * QB1(pct) + P2y * QB2(pct) + P1y * QB3(pct);
|
4145 | return {
|
4146 | x,
|
4147 | y
|
4148 | };
|
4149 | }
|
4150 | getPointOnEllipticalArc(cx, cy, rx, ry, theta, psi) {
|
4151 | const cosPsi = Math.cos(psi);
|
4152 | const sinPsi = Math.sin(psi);
|
4153 | const pt = {
|
4154 | x: rx * Math.cos(theta),
|
4155 | y: ry * Math.sin(theta)
|
4156 | };
|
4157 | return {
|
4158 | x: cx + (pt.x * cosPsi - pt.y * sinPsi),
|
4159 | y: cy + (pt.x * sinPsi + pt.y * cosPsi)
|
4160 | };
|
4161 | }
|
4162 |
|
4163 | buildEquidistantCache(inputStep, inputPrecision) {
|
4164 | const fullLen = this.getPathLength();
|
4165 | const precision = inputPrecision || 0.25;
|
4166 | const step = inputStep || fullLen / 100;
|
4167 | if (!this.equidistantCache
|
4168 | || this.equidistantCache.step !== step
|
4169 | || this.equidistantCache.precision !== precision) {
|
4170 |
|
4171 | this.equidistantCache = {
|
4172 | step,
|
4173 | precision,
|
4174 | points: []
|
4175 | };
|
4176 |
|
4177 | let s = 0;
|
4178 | for (let l = 0; l <= fullLen; l += precision) {
|
4179 | const p0 = this.getPointOnPath(l);
|
4180 | const p1 = this.getPointOnPath(l + precision);
|
4181 | if (!p0 || !p1) {
|
4182 | continue;
|
4183 | }
|
4184 | s += this.getLineLength(p0.x, p0.y, p1.x, p1.y);
|
4185 | if (s >= step) {
|
4186 | this.equidistantCache.points.push({
|
4187 | x: p0.x,
|
4188 | y: p0.y,
|
4189 | distance: l
|
4190 | });
|
4191 | s -= step;
|
4192 | }
|
4193 | }
|
4194 | }
|
4195 | }
|
4196 | getEquidistantPointOnPath(targetDistance, step, precision) {
|
4197 | this.buildEquidistantCache(step, precision);
|
4198 | if (targetDistance < 0
|
4199 | || targetDistance - this.getPathLength() > 0.00005) {
|
4200 | return null;
|
4201 | }
|
4202 | const idx = Math.round(targetDistance
|
4203 | / this.getPathLength()
|
4204 | * (this.equidistantCache.points.length - 1));
|
4205 | return this.equidistantCache.points[idx] || null;
|
4206 | }
|
4207 | }
|
4208 |
|
4209 | class ImageElement extends RenderedElement {
|
4210 | constructor(document, node, captureTextNodes) {
|
4211 | super(document, node, captureTextNodes);
|
4212 | this.type = 'image';
|
4213 | this.loaded = false;
|
4214 | const href = this.getHrefAttribute().getString();
|
4215 | if (!href) {
|
4216 | return;
|
4217 | }
|
4218 | const isSvg = /\.svg$/.test(href);
|
4219 | document.images.push(this);
|
4220 | if (!isSvg) {
|
4221 | this.loadImage(href);
|
4222 | }
|
4223 | else {
|
4224 | this.loadSvg(href);
|
4225 | }
|
4226 | this.isSvg = isSvg;
|
4227 | }
|
4228 | async loadImage(href) {
|
4229 | try {
|
4230 | const image = await this.document.createImage(href);
|
4231 | this.image = image;
|
4232 | }
|
4233 | catch (err) {
|
4234 |
|
4235 | console.error(`Error while loading image "${href}":`, err);
|
4236 | }
|
4237 | this.loaded = true;
|
4238 | }
|
4239 | async loadSvg(href) {
|
4240 | try {
|
4241 | const response = await this.document.fetch(href);
|
4242 | const svg = await response.text();
|
4243 | this.image = svg;
|
4244 | }
|
4245 | catch (err) {
|
4246 |
|
4247 | console.error(`Error while loading image "${href}":`, err);
|
4248 | }
|
4249 | this.loaded = true;
|
4250 | }
|
4251 | renderChildren(ctx) {
|
4252 | const { document, image, loaded } = this;
|
4253 | const x = this.getAttribute('x').getPixels('x');
|
4254 | const y = this.getAttribute('y').getPixels('y');
|
4255 | const width = this.getStyle('width').getPixels('x');
|
4256 | const height = this.getStyle('height').getPixels('y');
|
4257 | if (!loaded || !image
|
4258 | || !width || !height) {
|
4259 | return;
|
4260 | }
|
4261 | ctx.save();
|
4262 | if (this.isSvg) {
|
4263 | document.canvg.forkString(ctx, this.image, {
|
4264 | ignoreMouse: true,
|
4265 | ignoreAnimation: true,
|
4266 | ignoreDimensions: true,
|
4267 | ignoreClear: true,
|
4268 | offsetX: x,
|
4269 | offsetY: y,
|
4270 | scaleWidth: width,
|
4271 | scaleHeight: height
|
4272 | }).render();
|
4273 | }
|
4274 | else {
|
4275 | const image = this.image;
|
4276 | ctx.translate(x, y);
|
4277 | document.setViewBox({
|
4278 | ctx,
|
4279 | aspectRatio: this.getAttribute('preserveAspectRatio').getString(),
|
4280 | width,
|
4281 | desiredWidth: image.width,
|
4282 | height,
|
4283 | desiredHeight: image.height
|
4284 | });
|
4285 | if (this.loaded) {
|
4286 | if (typeof image.complete === 'undefined' || image.complete) {
|
4287 | ctx.drawImage(image, 0, 0);
|
4288 | }
|
4289 | }
|
4290 | }
|
4291 | ctx.restore();
|
4292 | }
|
4293 | getBoundingBox() {
|
4294 | const x = this.getAttribute('x').getPixels('x');
|
4295 | const y = this.getAttribute('y').getPixels('y');
|
4296 | const width = this.getStyle('width').getPixels('x');
|
4297 | const height = this.getStyle('height').getPixels('y');
|
4298 | return new BoundingBox(x, y, x + width, y + height);
|
4299 | }
|
4300 | }
|
4301 |
|
4302 | class SymbolElement extends RenderedElement {
|
4303 | constructor() {
|
4304 | super(...arguments);
|
4305 | this.type = 'symbol';
|
4306 | }
|
4307 | render(_) {
|
4308 |
|
4309 | }
|
4310 | }
|
4311 |
|
4312 | class SVGFontLoader {
|
4313 | constructor(document) {
|
4314 | this.document = document;
|
4315 | this.loaded = false;
|
4316 | document.fonts.push(this);
|
4317 | }
|
4318 | async load(fontFamily, url) {
|
4319 | try {
|
4320 | const { document } = this;
|
4321 | const svgDocument = await document.canvg.parser.load(url);
|
4322 | const fonts = svgDocument.getElementsByTagName('font');
|
4323 | Array.from(fonts).forEach((fontNode) => {
|
4324 | const font = document.createElement(fontNode);
|
4325 | document.definitions[fontFamily] = font;
|
4326 | });
|
4327 | }
|
4328 | catch (err) {
|
4329 |
|
4330 | console.error(`Error while loading font "${url}":`, err);
|
4331 | }
|
4332 | this.loaded = true;
|
4333 | }
|
4334 | }
|
4335 |
|
4336 | class StyleElement extends Element {
|
4337 | constructor(document, node, captureTextNodes) {
|
4338 | super(document, node, captureTextNodes);
|
4339 | this.type = 'style';
|
4340 | const css = compressSpaces(Array.from(node.childNodes)
|
4341 | .map((_) => _.data)
|
4342 | .join('')
|
4343 | .replace(/(\/\*([^*]|[\r\n]|(\*+([^*\/]|[\r\n])))*\*+\/)|(^[\s]*\/\/.*)/gm, '')
|
4344 | .replace(/@import.*;/g, '')
|
4345 | );
|
4346 | const cssDefs = css.split('}');
|
4347 | cssDefs.forEach((_) => {
|
4348 | const def = _.trim();
|
4349 | if (!def) {
|
4350 | return;
|
4351 | }
|
4352 | const cssParts = def.split('{');
|
4353 | const cssClasses = cssParts[0].split(',');
|
4354 | const cssProps = cssParts[1].split(';');
|
4355 | cssClasses.forEach((_) => {
|
4356 | const cssClass = _.trim();
|
4357 | if (!cssClass) {
|
4358 | return;
|
4359 | }
|
4360 | const props = document.styles[cssClass] || {};
|
4361 | cssProps.forEach((cssProp) => {
|
4362 | const prop = cssProp.indexOf(':');
|
4363 | const name = cssProp.substr(0, prop).trim();
|
4364 | const value = cssProp.substr(prop + 1, cssProp.length - prop).trim();
|
4365 | if (name && value) {
|
4366 | props[name] = new Property(document, name, value);
|
4367 | }
|
4368 | });
|
4369 | document.styles[cssClass] = props;
|
4370 | document.stylesSpecificity[cssClass] = getSelectorSpecificity(cssClass);
|
4371 | if (cssClass === '@font-face') {
|
4372 | const fontFamily = props['font-family'].getString().replace(/"|'/g, '');
|
4373 | const srcs = props.src.getString().split(',');
|
4374 | srcs.forEach((src) => {
|
4375 | if (src.indexOf('format("svg")') > 0) {
|
4376 | const url = parseExternalUrl(src);
|
4377 | if (url) {
|
4378 | new SVGFontLoader(document).load(fontFamily, url);
|
4379 | }
|
4380 | }
|
4381 | });
|
4382 | }
|
4383 | });
|
4384 | });
|
4385 | }
|
4386 | }
|
4387 | StyleElement.parseExternalUrl = parseExternalUrl;
|
4388 |
|
4389 | class UseElement extends RenderedElement {
|
4390 | constructor() {
|
4391 | super(...arguments);
|
4392 | this.type = 'use';
|
4393 | }
|
4394 | setContext(ctx) {
|
4395 | super.setContext(ctx);
|
4396 | const xAttr = this.getAttribute('x');
|
4397 | const yAttr = this.getAttribute('y');
|
4398 | if (xAttr.hasValue()) {
|
4399 | ctx.translate(xAttr.getPixels('x'), 0);
|
4400 | }
|
4401 | if (yAttr.hasValue()) {
|
4402 | ctx.translate(0, yAttr.getPixels('y'));
|
4403 | }
|
4404 | }
|
4405 | path(ctx) {
|
4406 | const { element } = this;
|
4407 | if (element) {
|
4408 | element.path(ctx);
|
4409 | }
|
4410 | }
|
4411 | renderChildren(ctx) {
|
4412 | const { document, element } = this;
|
4413 | if (element) {
|
4414 | let tempSvg = element;
|
4415 | if (element.type === 'symbol') {
|
4416 |
|
4417 | tempSvg = new SVGElement(document, null);
|
4418 | tempSvg.attributes.viewBox = new Property(document, 'viewBox', element.getAttribute('viewBox').getString());
|
4419 | tempSvg.attributes.preserveAspectRatio = new Property(document, 'preserveAspectRatio', element.getAttribute('preserveAspectRatio').getString());
|
4420 | tempSvg.attributes.overflow = new Property(document, 'overflow', element.getAttribute('overflow').getString());
|
4421 | tempSvg.children = element.children;
|
4422 |
|
4423 | element.styles.opacity = new Property(document, 'opacity', this.calculateOpacity());
|
4424 | }
|
4425 | if (tempSvg.type === 'svg') {
|
4426 | const widthStyle = this.getStyle('width', false, true);
|
4427 | const heightStyle = this.getStyle('height', false, true);
|
4428 |
|
4429 | if (widthStyle.hasValue()) {
|
4430 | tempSvg.attributes.width = new Property(document, 'width', widthStyle.getString());
|
4431 | }
|
4432 | if (heightStyle.hasValue()) {
|
4433 | tempSvg.attributes.height = new Property(document, 'height', heightStyle.getString());
|
4434 | }
|
4435 | }
|
4436 | const oldParent = tempSvg.parent;
|
4437 | tempSvg.parent = this;
|
4438 | tempSvg.render(ctx);
|
4439 | tempSvg.parent = oldParent;
|
4440 | }
|
4441 | }
|
4442 | getBoundingBox(ctx) {
|
4443 | const { element } = this;
|
4444 | if (element) {
|
4445 | return element.getBoundingBox(ctx);
|
4446 | }
|
4447 | return null;
|
4448 | }
|
4449 | elementTransform() {
|
4450 | const { document, element } = this;
|
4451 | return Transform.fromElement(document, element);
|
4452 | }
|
4453 | get element() {
|
4454 | if (!this._element) {
|
4455 | this._element = this.getHrefAttribute().getDefinition();
|
4456 | }
|
4457 | return this._element;
|
4458 | }
|
4459 | }
|
4460 |
|
4461 | function imGet(img, x, y, width, _, rgba) {
|
4462 | return img[y * width * 4 + x * 4 + rgba];
|
4463 | }
|
4464 | function imSet(img, x, y, width, _, rgba, val) {
|
4465 | img[y * width * 4 + x * 4 + rgba] = val;
|
4466 | }
|
4467 | function m(matrix, i, v) {
|
4468 | const mi = matrix[i];
|
4469 | return mi * v;
|
4470 | }
|
4471 | function c(a, m1, m2, m3) {
|
4472 | return m1 + Math.cos(a) * m2 + Math.sin(a) * m3;
|
4473 | }
|
4474 | class FeColorMatrixElement extends Element {
|
4475 | constructor(document, node, captureTextNodes) {
|
4476 | super(document, node, captureTextNodes);
|
4477 | this.type = 'feColorMatrix';
|
4478 | let matrix = toNumbers(this.getAttribute('values').getString());
|
4479 | switch (this.getAttribute('type').getString('matrix')) {
|
4480 | case 'saturate': {
|
4481 | const s = matrix[0];
|
4482 | matrix = [
|
4483 | 0.213 + 0.787 * s, 0.715 - 0.715 * s, 0.072 - 0.072 * s, 0, 0,
|
4484 | 0.213 - 0.213 * s, 0.715 + 0.285 * s, 0.072 - 0.072 * s, 0, 0,
|
4485 | 0.213 - 0.213 * s, 0.715 - 0.715 * s, 0.072 + 0.928 * s, 0, 0,
|
4486 | 0, 0, 0, 1, 0,
|
4487 | 0, 0, 0, 0, 1
|
4488 | ];
|
4489 | break;
|
4490 | }
|
4491 | case 'hueRotate': {
|
4492 | const a = matrix[0] * Math.PI / 180.0;
|
4493 | matrix = [
|
4494 | c(a, 0.213, 0.787, -0.213), c(a, 0.715, -0.715, -0.715), c(a, 0.072, -0.072, 0.928), 0, 0,
|
4495 | c(a, 0.213, -0.213, 0.143), c(a, 0.715, 0.285, 0.140), c(a, 0.072, -0.072, -0.283), 0, 0,
|
4496 | c(a, 0.213, -0.213, -0.787), c(a, 0.715, -0.715, 0.715), c(a, 0.072, 0.928, 0.072), 0, 0,
|
4497 | 0, 0, 0, 1, 0,
|
4498 | 0, 0, 0, 0, 1
|
4499 | ];
|
4500 | break;
|
4501 | }
|
4502 | case 'luminanceToAlpha':
|
4503 | matrix = [
|
4504 | 0, 0, 0, 0, 0,
|
4505 | 0, 0, 0, 0, 0,
|
4506 | 0, 0, 0, 0, 0,
|
4507 | 0.2125, 0.7154, 0.0721, 0, 0,
|
4508 | 0, 0, 0, 0, 1
|
4509 | ];
|
4510 | break;
|
4511 | }
|
4512 | this.matrix = matrix;
|
4513 | this.includeOpacity = this.getAttribute('includeOpacity').hasValue();
|
4514 | }
|
4515 | apply(ctx, _, __, width, height) {
|
4516 |
|
4517 | const { includeOpacity, matrix } = this;
|
4518 | const srcData = ctx.getImageData(0, 0, width, height);
|
4519 | for (let y = 0; y < height; y++) {
|
4520 | for (let x = 0; x < width; x++) {
|
4521 | const r = imGet(srcData.data, x, y, width, height, 0);
|
4522 | const g = imGet(srcData.data, x, y, width, height, 1);
|
4523 | const b = imGet(srcData.data, x, y, width, height, 2);
|
4524 | const a = imGet(srcData.data, x, y, width, height, 3);
|
4525 | let nr = m(matrix, 0, r) + m(matrix, 1, g) + m(matrix, 2, b) + m(matrix, 3, a) + m(matrix, 4, 1);
|
4526 | let ng = m(matrix, 5, r) + m(matrix, 6, g) + m(matrix, 7, b) + m(matrix, 8, a) + m(matrix, 9, 1);
|
4527 | let nb = m(matrix, 10, r) + m(matrix, 11, g) + m(matrix, 12, b) + m(matrix, 13, a) + m(matrix, 14, 1);
|
4528 | let na = m(matrix, 15, r) + m(matrix, 16, g) + m(matrix, 17, b) + m(matrix, 18, a) + m(matrix, 19, 1);
|
4529 | if (includeOpacity) {
|
4530 | nr = ng = nb = 0;
|
4531 | na *= a / 255;
|
4532 | }
|
4533 | imSet(srcData.data, x, y, width, height, 0, nr);
|
4534 | imSet(srcData.data, x, y, width, height, 1, ng);
|
4535 | imSet(srcData.data, x, y, width, height, 2, nb);
|
4536 | imSet(srcData.data, x, y, width, height, 3, na);
|
4537 | }
|
4538 | }
|
4539 | ctx.clearRect(0, 0, width, height);
|
4540 | ctx.putImageData(srcData, 0, 0);
|
4541 | }
|
4542 | }
|
4543 |
|
4544 | class MaskElement extends Element {
|
4545 | constructor() {
|
4546 | super(...arguments);
|
4547 | this.type = 'mask';
|
4548 | }
|
4549 | apply(ctx, element) {
|
4550 | const { document } = this;
|
4551 |
|
4552 | let x = this.getAttribute('x').getPixels('x');
|
4553 | let y = this.getAttribute('y').getPixels('y');
|
4554 | let width = this.getStyle('width').getPixels('x');
|
4555 | let height = this.getStyle('height').getPixels('y');
|
4556 | if (!width && !height) {
|
4557 | const boundingBox = new BoundingBox();
|
4558 | this.children.forEach((child) => {
|
4559 | boundingBox.addBoundingBox(child.getBoundingBox(ctx));
|
4560 | });
|
4561 | x = Math.floor(boundingBox.x1);
|
4562 | y = Math.floor(boundingBox.y1);
|
4563 | width = Math.floor(boundingBox.width);
|
4564 | height = Math.floor(boundingBox.height);
|
4565 | }
|
4566 | const ignoredStyles = this.removeStyles(element, MaskElement.ignoreStyles);
|
4567 | const maskCanvas = document.createCanvas(x + width, y + height);
|
4568 | const maskCtx = maskCanvas.getContext('2d');
|
4569 | document.screen.setDefaults(maskCtx);
|
4570 | this.renderChildren(maskCtx);
|
4571 |
|
4572 |
|
4573 | new FeColorMatrixElement(document, ({
|
4574 | nodeType: 1,
|
4575 | childNodes: [],
|
4576 | attributes: [
|
4577 | { nodeName: 'type', value: 'luminanceToAlpha' },
|
4578 | { nodeName: 'includeOpacity', value: 'true' }
|
4579 | ]
|
4580 | })).apply(maskCtx, 0, 0, x + width, y + height);
|
4581 | const tmpCanvas = document.createCanvas(x + width, y + height);
|
4582 | const tmpCtx = tmpCanvas.getContext('2d');
|
4583 | document.screen.setDefaults(tmpCtx);
|
4584 | element.render(tmpCtx);
|
4585 | tmpCtx.globalCompositeOperation = 'destination-in';
|
4586 | tmpCtx.fillStyle = maskCtx.createPattern(maskCanvas, 'no-repeat');
|
4587 | tmpCtx.fillRect(0, 0, x + width, y + height);
|
4588 | ctx.fillStyle = tmpCtx.createPattern(tmpCanvas, 'no-repeat');
|
4589 | ctx.fillRect(0, 0, x + width, y + height);
|
4590 |
|
4591 | this.restoreStyles(element, ignoredStyles);
|
4592 | }
|
4593 | render(_) {
|
4594 |
|
4595 | }
|
4596 | }
|
4597 | MaskElement.ignoreStyles = [
|
4598 | 'mask',
|
4599 | 'transform',
|
4600 | 'clip-path'
|
4601 | ];
|
4602 |
|
4603 | const noop = () => { };
|
4604 | class ClipPathElement extends Element {
|
4605 | constructor() {
|
4606 | super(...arguments);
|
4607 | this.type = 'clipPath';
|
4608 | }
|
4609 | apply(ctx) {
|
4610 | const { document } = this;
|
4611 | const contextProto = Reflect.getPrototypeOf(ctx);
|
4612 | const { beginPath, closePath } = ctx;
|
4613 | if (contextProto) {
|
4614 | contextProto.beginPath = noop;
|
4615 | contextProto.closePath = noop;
|
4616 | }
|
4617 | Reflect.apply(beginPath, ctx, []);
|
4618 | this.children.forEach((child) => {
|
4619 | if (typeof child.path === 'undefined') {
|
4620 | return;
|
4621 | }
|
4622 | let transform = typeof child.elementTransform !== 'undefined'
|
4623 | ? child.elementTransform()
|
4624 | : null;
|
4625 | if (!transform) {
|
4626 | transform = Transform.fromElement(document, child);
|
4627 | }
|
4628 | if (transform) {
|
4629 | transform.apply(ctx);
|
4630 | }
|
4631 | child.path(ctx);
|
4632 | if (contextProto) {
|
4633 | contextProto.closePath = closePath;
|
4634 | }
|
4635 | if (transform) {
|
4636 | transform.unapply(ctx);
|
4637 | }
|
4638 | });
|
4639 | Reflect.apply(closePath, ctx, []);
|
4640 | ctx.clip();
|
4641 | if (contextProto) {
|
4642 | contextProto.beginPath = beginPath;
|
4643 | contextProto.closePath = closePath;
|
4644 | }
|
4645 | }
|
4646 | render(_) {
|
4647 |
|
4648 | }
|
4649 | }
|
4650 |
|
4651 | class FilterElement extends Element {
|
4652 | constructor() {
|
4653 | super(...arguments);
|
4654 | this.type = 'filter';
|
4655 | }
|
4656 | apply(ctx, element) {
|
4657 |
|
4658 | const { document, children } = this;
|
4659 | const boundingBox = element.getBoundingBox(ctx);
|
4660 | if (!boundingBox) {
|
4661 | return;
|
4662 | }
|
4663 | let px = 0;
|
4664 | let py = 0;
|
4665 | children.forEach((child) => {
|
4666 | const efd = child.extraFilterDistance || 0;
|
4667 | px = Math.max(px, efd);
|
4668 | py = Math.max(py, efd);
|
4669 | });
|
4670 | const width = Math.floor(boundingBox.width);
|
4671 | const height = Math.floor(boundingBox.height);
|
4672 | const tmpCanvasWidth = width + 2 * px;
|
4673 | const tmpCanvasHeight = height + 2 * py;
|
4674 | if (tmpCanvasWidth < 1 || tmpCanvasHeight < 1) {
|
4675 | return;
|
4676 | }
|
4677 | const x = Math.floor(boundingBox.x);
|
4678 | const y = Math.floor(boundingBox.y);
|
4679 | const ignoredStyles = this.removeStyles(element, FilterElement.ignoreStyles);
|
4680 | const tmpCanvas = document.createCanvas(tmpCanvasWidth, tmpCanvasHeight);
|
4681 | const tmpCtx = tmpCanvas.getContext('2d');
|
4682 | document.screen.setDefaults(tmpCtx);
|
4683 | tmpCtx.translate(-x + px, -y + py);
|
4684 | element.render(tmpCtx);
|
4685 |
|
4686 | children.forEach((child) => {
|
4687 | if (typeof child.apply === 'function') {
|
4688 | child.apply(tmpCtx, 0, 0, tmpCanvasWidth, tmpCanvasHeight);
|
4689 | }
|
4690 | });
|
4691 |
|
4692 | ctx.drawImage(tmpCanvas, 0, 0, tmpCanvasWidth, tmpCanvasHeight, x - px, y - py, tmpCanvasWidth, tmpCanvasHeight);
|
4693 | this.restoreStyles(element, ignoredStyles);
|
4694 | }
|
4695 | render(_) {
|
4696 |
|
4697 | }
|
4698 | }
|
4699 | FilterElement.ignoreStyles = [
|
4700 | 'filter',
|
4701 | 'transform',
|
4702 | 'clip-path'
|
4703 | ];
|
4704 |
|
4705 | class FeDropShadowElement extends Element {
|
4706 | constructor(document, node, captureTextNodes) {
|
4707 | super(document, node, captureTextNodes);
|
4708 | this.type = 'feDropShadow';
|
4709 | this.addStylesFromStyleDefinition();
|
4710 | }
|
4711 | apply(_, __, ___, ____, _____) {
|
4712 |
|
4713 | }
|
4714 | }
|
4715 |
|
4716 | class FeMorphologyElement extends Element {
|
4717 | constructor() {
|
4718 | super(...arguments);
|
4719 | this.type = 'feMorphology';
|
4720 | }
|
4721 | apply(_, __, ___, ____, _____) {
|
4722 |
|
4723 | }
|
4724 | }
|
4725 |
|
4726 | class FeCompositeElement extends Element {
|
4727 | constructor() {
|
4728 | super(...arguments);
|
4729 | this.type = 'feComposite';
|
4730 | }
|
4731 | apply(_, __, ___, ____, _____) {
|
4732 |
|
4733 | }
|
4734 | }
|
4735 |
|
4736 | class FeGaussianBlurElement extends Element {
|
4737 | constructor(document, node, captureTextNodes) {
|
4738 | super(document, node, captureTextNodes);
|
4739 | this.type = 'feGaussianBlur';
|
4740 | this.blurRadius = Math.floor(this.getAttribute('stdDeviation').getNumber());
|
4741 | this.extraFilterDistance = this.blurRadius;
|
4742 | }
|
4743 | apply(ctx, x, y, width, height) {
|
4744 | const { document, blurRadius } = this;
|
4745 | const body = document.window
|
4746 | ? document.window.document.body
|
4747 | : null;
|
4748 | const canvas = ctx.canvas;
|
4749 |
|
4750 | canvas.id = document.getUniqueId();
|
4751 | if (body) {
|
4752 | canvas.style.display = 'none';
|
4753 | body.appendChild(canvas);
|
4754 | }
|
4755 | canvasRGBA(canvas, x, y, width, height, blurRadius);
|
4756 | if (body) {
|
4757 | body.removeChild(canvas);
|
4758 | }
|
4759 | }
|
4760 | }
|
4761 |
|
4762 | class TitleElement extends Element {
|
4763 | constructor() {
|
4764 | super(...arguments);
|
4765 | this.type = 'title';
|
4766 | }
|
4767 | }
|
4768 |
|
4769 | class DescElement extends Element {
|
4770 | constructor() {
|
4771 | super(...arguments);
|
4772 | this.type = 'desc';
|
4773 | }
|
4774 | }
|
4775 |
|
4776 | var elementTypes = {
|
4777 | 'svg': SVGElement,
|
4778 | 'rect': RectElement,
|
4779 | 'circle': CircleElement,
|
4780 | 'ellipse': EllipseElement,
|
4781 | 'line': LineElement,
|
4782 | 'polyline': PolylineElement,
|
4783 | 'polygon': PolygonElement,
|
4784 | 'path': PathElement,
|
4785 | 'pattern': PatternElement,
|
4786 | 'marker': MarkerElement,
|
4787 | 'defs': DefsElement,
|
4788 | 'linearGradient': LinearGradientElement,
|
4789 | 'radialGradient': RadialGradientElement,
|
4790 | 'stop': StopElement,
|
4791 | 'animate': AnimateElement,
|
4792 | 'animateColor': AnimateColorElement,
|
4793 | 'animateTransform': AnimateTransformElement,
|
4794 | 'font': FontElement,
|
4795 | 'font-face': FontFaceElement,
|
4796 | 'missing-glyph': MissingGlyphElement,
|
4797 | 'glyph': GlyphElement,
|
4798 | 'text': TextElement,
|
4799 | 'tspan': TSpanElement,
|
4800 | 'tref': TRefElement,
|
4801 | 'a': AElement,
|
4802 | 'textPath': TextPathElement,
|
4803 | 'image': ImageElement,
|
4804 | 'g': GElement,
|
4805 | 'symbol': SymbolElement,
|
4806 | 'style': StyleElement,
|
4807 | 'use': UseElement,
|
4808 | 'mask': MaskElement,
|
4809 | 'clipPath': ClipPathElement,
|
4810 | 'filter': FilterElement,
|
4811 | 'feDropShadow': FeDropShadowElement,
|
4812 | 'feMorphology': FeMorphologyElement,
|
4813 | 'feComposite': FeCompositeElement,
|
4814 | 'feColorMatrix': FeColorMatrixElement,
|
4815 | 'feGaussianBlur': FeGaussianBlurElement,
|
4816 | 'title': TitleElement,
|
4817 | 'desc': DescElement
|
4818 | };
|
4819 |
|
4820 | function createCanvas(width, height) {
|
4821 | const canvas = document.createElement('canvas');
|
4822 | canvas.width = width;
|
4823 | canvas.height = height;
|
4824 | return canvas;
|
4825 | }
|
4826 | async function createImage(src, anonymousCrossOrigin = false) {
|
4827 | const image = document.createElement('img');
|
4828 | if (anonymousCrossOrigin) {
|
4829 | image.crossOrigin = 'Anonymous';
|
4830 | }
|
4831 | return new Promise((resolve, reject) => {
|
4832 | image.onload = () => {
|
4833 | resolve(image);
|
4834 | };
|
4835 | image.onerror = () => {
|
4836 | reject();
|
4837 | };
|
4838 | image.src = src;
|
4839 | });
|
4840 | }
|
4841 | class Document {
|
4842 | constructor(canvg, { rootEmSize = 12, emSize = 12, createCanvas = Document.createCanvas, createImage = Document.createImage, anonymousCrossOrigin } = {}) {
|
4843 | this.canvg = canvg;
|
4844 | this.definitions = {};
|
4845 | this.styles = {};
|
4846 | this.stylesSpecificity = {};
|
4847 | this.images = [];
|
4848 | this.fonts = [];
|
4849 | this.emSizeStack = [];
|
4850 | this.uniqueId = 0;
|
4851 | this.screen = canvg.screen;
|
4852 | this.rootEmSize = rootEmSize;
|
4853 | this.emSize = emSize;
|
4854 | this.createCanvas = createCanvas;
|
4855 | this.createImage = this.bindCreateImage(createImage, anonymousCrossOrigin);
|
4856 | this.screen.wait(this.isImagesLoaded.bind(this));
|
4857 | this.screen.wait(this.isFontsLoaded.bind(this));
|
4858 | }
|
4859 | bindCreateImage(createImage, anonymousCrossOrigin) {
|
4860 | if (typeof anonymousCrossOrigin === 'boolean') {
|
4861 | return (source, forceAnonymousCrossOrigin) => createImage(source, typeof forceAnonymousCrossOrigin === 'boolean'
|
4862 | ? forceAnonymousCrossOrigin
|
4863 | : anonymousCrossOrigin);
|
4864 | }
|
4865 | return createImage;
|
4866 | }
|
4867 | get window() {
|
4868 | return this.screen.window;
|
4869 | }
|
4870 | get fetch() {
|
4871 | return this.screen.fetch;
|
4872 | }
|
4873 | get ctx() {
|
4874 | return this.screen.ctx;
|
4875 | }
|
4876 | get emSize() {
|
4877 | const { emSizeStack } = this;
|
4878 | return emSizeStack[emSizeStack.length - 1];
|
4879 | }
|
4880 | set emSize(value) {
|
4881 | const { emSizeStack } = this;
|
4882 | emSizeStack.push(value);
|
4883 | }
|
4884 | popEmSize() {
|
4885 | const { emSizeStack } = this;
|
4886 | emSizeStack.pop();
|
4887 | }
|
4888 | getUniqueId() {
|
4889 | return `canvg${++this.uniqueId}`;
|
4890 | }
|
4891 | isImagesLoaded() {
|
4892 | return this.images.every(_ => _.loaded);
|
4893 | }
|
4894 | isFontsLoaded() {
|
4895 | return this.fonts.every(_ => _.loaded);
|
4896 | }
|
4897 | createDocumentElement(document) {
|
4898 | const documentElement = this.createElement(document.documentElement);
|
4899 | documentElement.root = true;
|
4900 | documentElement.addStylesFromStyleDefinition();
|
4901 | this.documentElement = documentElement;
|
4902 | return documentElement;
|
4903 | }
|
4904 | createElement(node) {
|
4905 | const elementType = node.nodeName.replace(/^[^:]+:/, '');
|
4906 | const ElementType = Document.elementTypes[elementType];
|
4907 | if (typeof ElementType !== 'undefined') {
|
4908 | return new ElementType(this, node);
|
4909 | }
|
4910 | return new UnknownElement(this, node);
|
4911 | }
|
4912 | createTextNode(node) {
|
4913 | return new TextNode(this, node);
|
4914 | }
|
4915 | setViewBox(config) {
|
4916 | this.screen.setViewBox({
|
4917 | document: this,
|
4918 | ...config
|
4919 | });
|
4920 | }
|
4921 | }
|
4922 | Document.createCanvas = createCanvas;
|
4923 | Document.createImage = createImage;
|
4924 | Document.elementTypes = elementTypes;
|
4925 |
|
4926 |
|
4927 |
|
4928 |
|
4929 | class Canvg {
|
4930 | |
4931 |
|
4932 |
|
4933 |
|
4934 |
|
4935 |
|
4936 | constructor(ctx, svg, options = {}) {
|
4937 | this.parser = new Parser(options);
|
4938 | this.screen = new Screen(ctx, options);
|
4939 | this.options = options;
|
4940 | const document = new Document(this, options);
|
4941 | const documentElement = document.createDocumentElement(svg);
|
4942 | this.document = document;
|
4943 | this.documentElement = documentElement;
|
4944 | }
|
4945 | |
4946 |
|
4947 |
|
4948 |
|
4949 |
|
4950 |
|
4951 | static async from(ctx, svg, options = {}) {
|
4952 | const parser = new Parser(options);
|
4953 | const svgDocument = await parser.parse(svg);
|
4954 | return new Canvg(ctx, svgDocument, options);
|
4955 | }
|
4956 | |
4957 |
|
4958 |
|
4959 |
|
4960 |
|
4961 |
|
4962 | static fromString(ctx, svg, options = {}) {
|
4963 | const parser = new Parser(options);
|
4964 | const svgDocument = parser.parseFromString(svg);
|
4965 | return new Canvg(ctx, svgDocument, options);
|
4966 | }
|
4967 | |
4968 |
|
4969 |
|
4970 |
|
4971 |
|
4972 |
|
4973 | fork(ctx, svg, options = {}) {
|
4974 | return Canvg.from(ctx, svg, {
|
4975 | ...this.options,
|
4976 | ...options
|
4977 | });
|
4978 | }
|
4979 | |
4980 |
|
4981 |
|
4982 |
|
4983 |
|
4984 |
|
4985 | forkString(ctx, svg, options = {}) {
|
4986 | return Canvg.fromString(ctx, svg, {
|
4987 | ...this.options,
|
4988 | ...options
|
4989 | });
|
4990 | }
|
4991 | |
4992 |
|
4993 |
|
4994 | ready() {
|
4995 | return this.screen.ready();
|
4996 | }
|
4997 | |
4998 |
|
4999 |
|
5000 | isReady() {
|
5001 | return this.screen.isReady();
|
5002 | }
|
5003 | |
5004 |
|
5005 |
|
5006 |
|
5007 | async render(options = {}) {
|
5008 | this.start({
|
5009 | enableRedraw: true,
|
5010 | ignoreAnimation: true,
|
5011 | ignoreMouse: true,
|
5012 | ...options
|
5013 | });
|
5014 | await this.ready();
|
5015 | this.stop();
|
5016 | }
|
5017 | |
5018 |
|
5019 |
|
5020 |
|
5021 | start(options = {}) {
|
5022 | const { documentElement, screen, options: baseOptions } = this;
|
5023 | screen.start(documentElement, {
|
5024 | enableRedraw: true,
|
5025 | ...baseOptions,
|
5026 | ...options
|
5027 | });
|
5028 | }
|
5029 | |
5030 |
|
5031 |
|
5032 | stop() {
|
5033 | this.screen.stop();
|
5034 | }
|
5035 | |
5036 |
|
5037 |
|
5038 |
|
5039 |
|
5040 |
|
5041 | resize(width, height = width, preserveAspectRatio = false) {
|
5042 | this.documentElement.resize(width, height, preserveAspectRatio);
|
5043 | }
|
5044 | }
|
5045 |
|
5046 |
|
5047 |
|
5048 |
|
5049 |
|
5050 |
|
5051 | function offscreen({ DOMParser: DOMParserFallback } = {}) {
|
5052 | const preset = {
|
5053 | window: null,
|
5054 | ignoreAnimation: true,
|
5055 | ignoreMouse: true,
|
5056 | DOMParser: DOMParserFallback,
|
5057 | createCanvas(width, height) {
|
5058 | return new OffscreenCanvas(width, height);
|
5059 | },
|
5060 | async createImage(url) {
|
5061 | const response = await fetch(url);
|
5062 | const blob = await response.blob();
|
5063 | const img = await createImageBitmap(blob);
|
5064 | return img;
|
5065 | }
|
5066 | };
|
5067 | if (typeof DOMParser !== 'undefined'
|
5068 | || typeof DOMParserFallback === 'undefined') {
|
5069 | Reflect.deleteProperty(preset, 'DOMParser');
|
5070 | }
|
5071 | return preset;
|
5072 | }
|
5073 |
|
5074 |
|
5075 |
|
5076 |
|
5077 |
|
5078 |
|
5079 |
|
5080 |
|
5081 | function node({ DOMParser, canvas, fetch }) {
|
5082 | return {
|
5083 | window: null,
|
5084 | ignoreAnimation: true,
|
5085 | ignoreMouse: true,
|
5086 | DOMParser,
|
5087 | fetch,
|
5088 | createCanvas: canvas.createCanvas,
|
5089 | createImage: canvas.loadImage
|
5090 | };
|
5091 | }
|
5092 |
|
5093 | var index = Object.freeze({
|
5094 | __proto__: null,
|
5095 | offscreen: offscreen,
|
5096 | node: node
|
5097 | });
|
5098 |
|
5099 | export default Canvg;
|
5100 | export { AElement, AnimateColorElement, AnimateElement, AnimateTransformElement, BoundingBox, CB1, CB2, CB3, CB4, Canvg, CircleElement, ClipPathElement, DefsElement, DescElement, Document, Element, EllipseElement, FeColorMatrixElement, FeCompositeElement, FeDropShadowElement, FeGaussianBlurElement, FeMorphologyElement, FilterElement, Font, FontElement, FontFaceElement, GElement, GlyphElement, GradientElement, ImageElement, LineElement, LinearGradientElement, MarkerElement, MaskElement, Matrix, MissingGlyphElement, Mouse, PSEUDO_ZERO, Parser, PathElement, PathParser, PatternElement, Point, PolygonElement, PolylineElement, Property, QB1, QB2, QB3, RadialGradientElement, RectElement, RenderedElement, Rotate, SVGElement, SVGFontLoader, Scale, Screen, Skew, SkewX, SkewY, StopElement, StyleElement, SymbolElement, TRefElement, TSpanElement, TextElement, TextPathElement, TitleElement, Transform, Translate, UnknownElement, UseElement, ViewPort, compressSpaces, getSelectorSpecificity, normalizeAttributeName, normalizeColor, parseExternalUrl, index as presets, toNumbers, trimLeft, trimRight, vectorMagnitude, vectorsAngle, vectorsRatio };
|
5101 |
|