svgedit/dist/canvg.js

var canvg = (function (exports) {
  'use strict';

  function _typeof(obj) {
    if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
      _typeof = function (obj) {
        return typeof obj;
      };
    } else {
      _typeof = function (obj) {
        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
      };
    }

    return _typeof(obj);
  }

  function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
    try {
      var info = gen[key](arg);
      var value = info.value;
    } catch (error) {
      reject(error);
      return;
    }

    if (info.done) {
      resolve(value);
    } else {
      Promise.resolve(value).then(_next, _throw);
    }
  }

  function _asyncToGenerator(fn) {
    return function () {
      var self = this,
          args = arguments;
      return new Promise(function (resolve, reject) {
        var gen = fn.apply(self, args);

        function _next(value) {
          asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
        }

        function _throw(err) {
          asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
        }

        _next(undefined);
      });
    };
  }

  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }

  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }

  function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
      throw new TypeError("Super expression must either be null or a function");
    }

    subClass.prototype = Object.create(superClass && superClass.prototype, {
      constructor: {
        value: subClass,
        writable: true,
        configurable: true
      }
    });
    if (superClass) _setPrototypeOf(subClass, superClass);
  }

  function _getPrototypeOf(o) {
    _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
      return o.__proto__ || Object.getPrototypeOf(o);
    };
    return _getPrototypeOf(o);
  }

  function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
      o.__proto__ = p;
      return o;
    };

    return _setPrototypeOf(o, p);
  }

  function isNativeReflectConstruct() {
    if (typeof Reflect === "undefined" || !Reflect.construct) return false;
    if (Reflect.construct.sham) return false;
    if (typeof Proxy === "function") return true;

    try {
      Date.prototype.toString.call(Reflect.construct(Date, [], function () {}));
      return true;
    } catch (e) {
      return false;
    }
  }

  function _construct(Parent, args, Class) {
    if (isNativeReflectConstruct()) {
      _construct = Reflect.construct;
    } else {
      _construct = function _construct(Parent, args, Class) {
        var a = [null];
        a.push.apply(a, args);
        var Constructor = Function.bind.apply(Parent, a);
        var instance = new Constructor();
        if (Class) _setPrototypeOf(instance, Class.prototype);
        return instance;
      };
    }

    return _construct.apply(null, arguments);
  }

  function _assertThisInitialized(self) {
    if (self === void 0) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }

    return self;
  }

  function _possibleConstructorReturn(self, call) {
    if (call && (typeof call === "object" || typeof call === "function")) {
      return call;
    }

    return _assertThisInitialized(self);
  }

  function _superPropBase(object, property) {
    while (!Object.prototype.hasOwnProperty.call(object, property)) {
      object = _getPrototypeOf(object);
      if (object === null) break;
    }

    return object;
  }

  function _get(target, property, receiver) {
    if (typeof Reflect !== "undefined" && Reflect.get) {
      _get = Reflect.get;
    } else {
      _get = function _get(target, property, receiver) {
        var base = _superPropBase(target, property);

        if (!base) return;
        var desc = Object.getOwnPropertyDescriptor(base, property);

        if (desc.get) {
          return desc.get.call(receiver);
        }

        return desc.value;
      };
    }

    return _get(target, property, receiver || target);
  }

  function _slicedToArray(arr, i) {
    return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest();
  }

  function _toConsumableArray(arr) {
    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread();
  }

  function _arrayWithoutHoles(arr) {
    if (Array.isArray(arr)) {
      for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];

      return arr2;
    }
  }

  function _arrayWithHoles(arr) {
    if (Array.isArray(arr)) return arr;
  }

  function _iterableToArray(iter) {
    if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
  }

  function _iterableToArrayLimit(arr, i) {
    var _arr = [];
    var _n = true;
    var _d = false;
    var _e = undefined;

    try {
      for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
        _arr.push(_s.value);

        if (i && _arr.length === i) break;
      }
    } catch (err) {
      _d = true;
      _e = err;
    } finally {
      try {
        if (!_n && _i["return"] != null) _i["return"]();
      } finally {
        if (_d) throw _e;
      }
    }

    return _arr;
  }

  function _nonIterableSpread() {
    throw new TypeError("Invalid attempt to spread non-iterable instance");
  }

  function _nonIterableRest() {
    throw new TypeError("Invalid attempt to destructure non-iterable instance");
  }

  /**
   * For parsing color values
   * @module RGBColor
   * @author Stoyan Stefanov <sstoo@gmail.com>
   * @see https://www.phpied.com/rgb-color-parser-in-javascript/
   * @license MIT
  */
  var simpleColors = {
    aliceblue: 'f0f8ff',
    antiquewhite: 'faebd7',
    aqua: '00ffff',
    aquamarine: '7fffd4',
    azure: 'f0ffff',
    beige: 'f5f5dc',
    bisque: 'ffe4c4',
    black: '000000',
    blanchedalmond: 'ffebcd',
    blue: '0000ff',
    blueviolet: '8a2be2',
    brown: 'a52a2a',
    burlywood: 'deb887',
    cadetblue: '5f9ea0',
    chartreuse: '7fff00',
    chocolate: 'd2691e',
    coral: 'ff7f50',
    cornflowerblue: '6495ed',
    cornsilk: 'fff8dc',
    crimson: 'dc143c',
    cyan: '00ffff',
    darkblue: '00008b',
    darkcyan: '008b8b',
    darkgoldenrod: 'b8860b',
    darkgray: 'a9a9a9',
    darkgreen: '006400',
    darkkhaki: 'bdb76b',
    darkmagenta: '8b008b',
    darkolivegreen: '556b2f',
    darkorange: 'ff8c00',
    darkorchid: '9932cc',
    darkred: '8b0000',
    darksalmon: 'e9967a',
    darkseagreen: '8fbc8f',
    darkslateblue: '483d8b',
    darkslategray: '2f4f4f',
    darkturquoise: '00ced1',
    darkviolet: '9400d3',
    deeppink: 'ff1493',
    deepskyblue: '00bfff',
    dimgray: '696969',
    dodgerblue: '1e90ff',
    feldspar: 'd19275',
    firebrick: 'b22222',
    floralwhite: 'fffaf0',
    forestgreen: '228b22',
    fuchsia: 'ff00ff',
    gainsboro: 'dcdcdc',
    ghostwhite: 'f8f8ff',
    gold: 'ffd700',
    goldenrod: 'daa520',
    gray: '808080',
    green: '008000',
    greenyellow: 'adff2f',
    honeydew: 'f0fff0',
    hotpink: 'ff69b4',
    indianred: 'cd5c5c',
    indigo: '4b0082',
    ivory: 'fffff0',
    khaki: 'f0e68c',
    lavender: 'e6e6fa',
    lavenderblush: 'fff0f5',
    lawngreen: '7cfc00',
    lemonchiffon: 'fffacd',
    lightblue: 'add8e6',
    lightcoral: 'f08080',
    lightcyan: 'e0ffff',
    lightgoldenrodyellow: 'fafad2',
    lightgrey: 'd3d3d3',
    lightgreen: '90ee90',
    lightpink: 'ffb6c1',
    lightsalmon: 'ffa07a',
    lightseagreen: '20b2aa',
    lightskyblue: '87cefa',
    lightslateblue: '8470ff',
    lightslategray: '778899',
    lightsteelblue: 'b0c4de',
    lightyellow: 'ffffe0',
    lime: '00ff00',
    limegreen: '32cd32',
    linen: 'faf0e6',
    magenta: 'ff00ff',
    maroon: '800000',
    mediumaquamarine: '66cdaa',
    mediumblue: '0000cd',
    mediumorchid: 'ba55d3',
    mediumpurple: '9370d8',
    mediumseagreen: '3cb371',
    mediumslateblue: '7b68ee',
    mediumspringgreen: '00fa9a',
    mediumturquoise: '48d1cc',
    mediumvioletred: 'c71585',
    midnightblue: '191970',
    mintcream: 'f5fffa',
    mistyrose: 'ffe4e1',
    moccasin: 'ffe4b5',
    navajowhite: 'ffdead',
    navy: '000080',
    oldlace: 'fdf5e6',
    olive: '808000',
    olivedrab: '6b8e23',
    orange: 'ffa500',
    orangered: 'ff4500',
    orchid: 'da70d6',
    palegoldenrod: 'eee8aa',
    palegreen: '98fb98',
    paleturquoise: 'afeeee',
    palevioletred: 'd87093',
    papayawhip: 'ffefd5',
    peachpuff: 'ffdab9',
    peru: 'cd853f',
    pink: 'ffc0cb',
    plum: 'dda0dd',
    powderblue: 'b0e0e6',
    purple: '800080',
    red: 'ff0000',
    rosybrown: 'bc8f8f',
    royalblue: '4169e1',
    saddlebrown: '8b4513',
    salmon: 'fa8072',
    sandybrown: 'f4a460',
    seagreen: '2e8b57',
    seashell: 'fff5ee',
    sienna: 'a0522d',
    silver: 'c0c0c0',
    skyblue: '87ceeb',
    slateblue: '6a5acd',
    slategray: '708090',
    snow: 'fffafa',
    springgreen: '00ff7f',
    steelblue: '4682b4',
    tan: 'd2b48c',
    teal: '008080',
    thistle: 'd8bfd8',
    tomato: 'ff6347',
    turquoise: '40e0d0',
    violet: 'ee82ee',
    violetred: 'd02090',
    wheat: 'f5deb3',
    white: 'ffffff',
    whitesmoke: 'f5f5f5',
    yellow: 'ffff00',
    yellowgreen: '9acd32'
  }; // array of color definition objects

  var colorDefs = [{
    re: /^rgb\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\)$/,
    example: ['rgb(123, 234, 45)', 'rgb(255,234,245)'],
    process: function process(_) {
      for (var _len = arguments.length, bits = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        bits[_key - 1] = arguments[_key];
      }

      return bits.map(function (b) {
        return parseInt(b);
      });
    }
  }, {
    re: /^(\w{2})(\w{2})(\w{2})$/,
    example: ['#00ff00', '336699'],
    process: function process(_) {
      for (var _len2 = arguments.length, bits = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
        bits[_key2 - 1] = arguments[_key2];
      }

      return bits.map(function (b) {
        return parseInt(b, 16);
      });
    }
  }, {
    re: /^(\w{1})(\w{1})(\w{1})$/,
    example: ['#fb0', 'f0f'],
    process: function process(_) {
      for (var _len3 = arguments.length, bits = new Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
        bits[_key3 - 1] = arguments[_key3];
      }

      return bits.map(function (b) {
        return parseInt(b + b, 16);
      });
    }
  }];
  /**
   * A class to parse color values.
   */

  var RGBColor =
  /*#__PURE__*/
  function () {
    /**
    * @param {string} colorString
    */
    function RGBColor(colorString) {
      var _this = this;

      _classCallCheck(this, RGBColor);

      this.ok = false; // strip any leading #

      if (colorString.charAt(0) === '#') {
        // remove # if any
        colorString = colorString.substr(1, 6);
      }

      colorString = colorString.replace(/ /g, '');
      colorString = colorString.toLowerCase(); // before getting into regexps, try simple matches
      // and overwrite the input

      if (colorString in simpleColors) {
        colorString = simpleColors[colorString];
      } // end of simple type-in colors
      // search through the definitions to find a match


      colorDefs.forEach(function (_ref) {
        var re = _ref.re,
            processor = _ref.process;
        var bits = re.exec(colorString);

        if (bits) {
          var _processor = processor.apply(void 0, _toConsumableArray(bits)),
              _processor2 = _slicedToArray(_processor, 3),
              r = _processor2[0],
              g = _processor2[1],
              b = _processor2[2];

          Object.assign(_this, {
            r: r,
            g: g,
            b: b
          });
          _this.ok = true;
        }
      }, this); // validate/cleanup values

      this.r = this.r < 0 || isNaN(this.r) ? 0 : this.r > 255 ? 255 : this.r;
      this.g = this.g < 0 || isNaN(this.g) ? 0 : this.g > 255 ? 255 : this.g;
      this.b = this.b < 0 || isNaN(this.b) ? 0 : this.b > 255 ? 255 : this.b;
    } // some getters

    /**
    * @returns {string}
    */


    _createClass(RGBColor, [{
      key: "toRGB",
      value: function toRGB() {
        return 'rgb(' + this.r + ', ' + this.g + ', ' + this.b + ')';
      }
      /**
      * @returns {string}
      */

    }, {
      key: "toHex",
      value: function toHex() {
        var r = this.r.toString(16);
        var g = this.g.toString(16);
        var b = this.b.toString(16);

        if (r.length === 1) {
          r = '0' + r;
        }

        if (g.length === 1) {
          g = '0' + g;
        }

        if (b.length === 1) {
          b = '0' + b;
        }

        return '#' + r + g + b;
      }
    }]);

    return RGBColor;
  }();

  RGBColor.getHelpXML = function () {
    var examples = _toConsumableArray(colorDefs.flatMap(function (_ref2) {
      var example = _ref2.example;
      return example;
    })).concat(_toConsumableArray(Object.keys(simpleColors)));

    var xml = document.createElement('ul');
    xml.setAttribute('id', 'rgbcolor-examples');
    xml.append.apply(xml, _toConsumableArray(examples.map(function (example) {
      try {
        var listItem = document.createElement('li');
        var listColor = new RGBColor(example);
        var exampleDiv = document.createElement('div');
        exampleDiv.style.cssText = "\nmargin: 3px;\nborder: 1px solid black;\nbackground: ".concat(listColor.toHex(), ";\ncolor: ").concat(listColor.toHex(), ";");
        exampleDiv.append('test');
        var listItemValue = " ".concat(example, " -> ").concat(listColor.toRGB(), " -> ").concat(listColor.toHex());
        listItem.append(exampleDiv, listItemValue);
        return listItem;
      } catch (e) {
        return '';
      }
    })));
    return xml;
  };

  function _typeof$1(obj) {
    if (typeof Symbol === "function" && _typeof(Symbol.iterator) === "symbol") {
      _typeof$1 = function _typeof$$1(obj) {
        return _typeof(obj);
      };
    } else {
      _typeof$1 = function _typeof$$1(obj) {
        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : _typeof(obj);
      };
    }

    return _typeof$1(obj);
  }

  function _classCallCheck$1(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }
  /**
  * StackBlur - a fast almost Gaussian Blur For Canvas
  *
  * In case you find this class useful - especially in commercial projects -
  * I am not totally unhappy for a small donation to my PayPal account
  * mario@quasimondo.de
  *
  * Or support me on flattr:
  * {@link https://flattr.com/thing/72791/StackBlur-a-fast-almost-Gaussian-Blur-Effect-for-CanvasJavascript}
  * @module StackBlur
  * @version 0.5
  * @author Mario Klingemann
  * Contact: mario@quasimondo.com
  * Website: {@link http://www.quasimondo.com/StackBlurForCanvas/StackBlurDemo.html}
  * Twitter: @quasimondo
  *
  * @copyright (c) 2010 Mario Klingemann
  *
  * Permission is hereby granted, free of charge, to any person
  * obtaining a copy of this software and associated documentation
  * files (the "Software"), to deal in the Software without
  * restriction, including without limitation the rights to use,
  * copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following
  * conditions:
  *
  * The above copyright notice and this permission notice shall be
  * included in all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  */


  var mulTable = [512, 512, 456, 512, 328, 456, 335, 512, 405, 328, 271, 456, 388, 335, 292, 512, 454, 405, 364, 328, 298, 271, 496, 456, 420, 388, 360, 335, 312, 292, 273, 512, 482, 454, 428, 405, 383, 364, 345, 328, 312, 298, 284, 271, 259, 496, 475, 456, 437, 420, 404, 388, 374, 360, 347, 335, 323, 312, 302, 292, 282, 273, 265, 512, 497, 482, 468, 454, 441, 428, 417, 405, 394, 383, 373, 364, 354, 345, 337, 328, 320, 312, 305, 298, 291, 284, 278, 271, 265, 259, 507, 496, 485, 475, 465, 456, 446, 437, 428, 420, 412, 404, 396, 388, 381, 374, 367, 360, 354, 347, 341, 335, 329, 323, 318, 312, 307, 302, 297, 292, 287, 282, 278, 273, 269, 265, 261, 512, 505, 497, 489, 482, 475, 468, 461, 454, 447, 441, 435, 428, 422, 417, 411, 405, 399, 394, 389, 383, 378, 373, 368, 364, 359, 354, 350, 345, 341, 337, 332, 328, 324, 320, 316, 312, 309, 305, 301, 298, 294, 291, 287, 284, 281, 278, 274, 271, 268, 265, 262, 259, 257, 507, 501, 496, 491, 485, 480, 475, 470, 465, 460, 456, 451, 446, 442, 437, 433, 428, 424, 420, 416, 412, 408, 404, 400, 396, 392, 388, 385, 381, 377, 374, 370, 367, 363, 360, 357, 354, 350, 347, 344, 341, 338, 335, 332, 329, 326, 323, 320, 318, 315, 312, 310, 307, 304, 302, 299, 297, 294, 292, 289, 287, 285, 282, 280, 278, 275, 273, 271, 269, 267, 265, 263, 261, 259];
  var shgTable = [9, 11, 12, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24];
  /**
   * @param {string|HTMLCanvasElement} canvas
   * @param {Integer} topX
   * @param {Integer} topY
   * @param {Integer} width
   * @param {Integer} height
   * @throws {Error|TypeError}
   * @returns {ImageData} See {@link https://html.spec.whatwg.org/multipage/canvas.html#imagedata}
   */


  function getImageDataFromCanvas(canvas, topX, topY, width, height) {
    if (typeof canvas === 'string') {
      canvas = document.getElementById(canvas);
    }

    if (!canvas || _typeof$1(canvas) !== 'object' || !('getContext' in canvas)) {
      throw new TypeError('Expecting canvas with `getContext` method in processCanvasRGB(A) calls!');
    }

    var context = canvas.getContext('2d');

    try {
      return context.getImageData(topX, topY, width, height);
    } catch (e) {
      throw new Error('unable to access image data: ' + e);
    }
  }
  /**
   * @param {HTMLCanvasElement} canvas
   * @param {Integer} topX
   * @param {Integer} topY
   * @param {Integer} width
   * @param {Integer} height
   * @param {Float} radius
   * @returns {undefined}
   */


  function processCanvasRGBA(canvas, topX, topY, width, height, radius) {
    if (isNaN(radius) || radius < 1) {
      return;
    }

    radius |= 0;
    var imageData = getImageDataFromCanvas(canvas, topX, topY, width, height);
    imageData = processImageDataRGBA(imageData, topX, topY, width, height, radius);
    canvas.getContext('2d').putImageData(imageData, topX, topY);
  }
  /**
   * @param {ImageData} imageData
   * @param {Integer} topX
   * @param {Integer} topY
   * @param {Integer} width
   * @param {Integer} height
   * @param {Float} radius
   * @returns {ImageData}
   */


  function processImageDataRGBA(imageData, topX, topY, width, height, radius) {
    var pixels = imageData.data;
    var x, y, i, p, yp, yi, yw, rSum, gSum, bSum, aSum, rOutSum, gOutSum, bOutSum, aOutSum, rInSum, gInSum, bInSum, aInSum, pr, pg, pb, pa, rbs;
    var div = 2 * radius + 1; // const w4 = width << 2;

    var widthMinus1 = width - 1;
    var heightMinus1 = height - 1;
    var radiusPlus1 = radius + 1;
    var sumFactor = radiusPlus1 * (radiusPlus1 + 1) / 2;
    var stackStart = new BlurStack();
    var stack = stackStart;
    var stackEnd;

    for (i = 1; i < div; i++) {
      stack = stack.next = new BlurStack();

      if (i === radiusPlus1) {
        stackEnd = stack;
      }
    }

    stack.next = stackStart;
    var stackIn = null;
    var stackOut = null;
    yw = yi = 0;
    var mulSum = mulTable[radius];
    var shgSum = shgTable[radius];

    for (y = 0; y < height; y++) {
      rInSum = gInSum = bInSum = aInSum = rSum = gSum = bSum = aSum = 0;
      rOutSum = radiusPlus1 * (pr = pixels[yi]);
      gOutSum = radiusPlus1 * (pg = pixels[yi + 1]);
      bOutSum = radiusPlus1 * (pb = pixels[yi + 2]);
      aOutSum = radiusPlus1 * (pa = pixels[yi + 3]);
      rSum += sumFactor * pr;
      gSum += sumFactor * pg;
      bSum += sumFactor * pb;
      aSum += sumFactor * pa;
      stack = stackStart;

      for (i = 0; i < radiusPlus1; i++) {
        stack.r = pr;
        stack.g = pg;
        stack.b = pb;
        stack.a = pa;
        stack = stack.next;
      }

      for (i = 1; i < radiusPlus1; i++) {
        p = yi + ((widthMinus1 < i ? widthMinus1 : i) << 2);
        rSum += (stack.r = pr = pixels[p]) * (rbs = radiusPlus1 - i);
        gSum += (stack.g = pg = pixels[p + 1]) * rbs;
        bSum += (stack.b = pb = pixels[p + 2]) * rbs;
        aSum += (stack.a = pa = pixels[p + 3]) * rbs;
        rInSum += pr;
        gInSum += pg;
        bInSum += pb;
        aInSum += pa;
        stack = stack.next;
      }

      stackIn = stackStart;
      stackOut = stackEnd;

      for (x = 0; x < width; x++) {
        pixels[yi + 3] = pa = aSum * mulSum >> shgSum;

        if (pa !== 0) {
          pa = 255 / pa;
          pixels[yi] = (rSum * mulSum >> shgSum) * pa;
          pixels[yi + 1] = (gSum * mulSum >> shgSum) * pa;
          pixels[yi + 2] = (bSum * mulSum >> shgSum) * pa;
        } else {
          pixels[yi] = pixels[yi + 1] = pixels[yi + 2] = 0;
        }

        rSum -= rOutSum;
        gSum -= gOutSum;
        bSum -= bOutSum;
        aSum -= aOutSum;
        rOutSum -= stackIn.r;
        gOutSum -= stackIn.g;
        bOutSum -= stackIn.b;
        aOutSum -= stackIn.a;
        p = yw + ((p = x + radius + 1) < widthMinus1 ? p : widthMinus1) << 2;
        rInSum += stackIn.r = pixels[p];
        gInSum += stackIn.g = pixels[p + 1];
        bInSum += stackIn.b = pixels[p + 2];
        aInSum += stackIn.a = pixels[p + 3];
        rSum += rInSum;
        gSum += gInSum;
        bSum += bInSum;
        aSum += aInSum;
        stackIn = stackIn.next;
        rOutSum += pr = stackOut.r;
        gOutSum += pg = stackOut.g;
        bOutSum += pb = stackOut.b;
        aOutSum += pa = stackOut.a;
        rInSum -= pr;
        gInSum -= pg;
        bInSum -= pb;
        aInSum -= pa;
        stackOut = stackOut.next;
        yi += 4;
      }

      yw += width;
    }

    for (x = 0; x < width; x++) {
      gInSum = bInSum = aInSum = rInSum = gSum = bSum = aSum = rSum = 0;
      yi = x << 2;
      rOutSum = radiusPlus1 * (pr = pixels[yi]);
      gOutSum = radiusPlus1 * (pg = pixels[yi + 1]);
      bOutSum = radiusPlus1 * (pb = pixels[yi + 2]);
      aOutSum = radiusPlus1 * (pa = pixels[yi + 3]);
      rSum += sumFactor * pr;
      gSum += sumFactor * pg;
      bSum += sumFactor * pb;
      aSum += sumFactor * pa;
      stack = stackStart;

      for (i = 0; i < radiusPlus1; i++) {
        stack.r = pr;
        stack.g = pg;
        stack.b = pb;
        stack.a = pa;
        stack = stack.next;
      }

      yp = width;

      for (i = 1; i <= radius; i++) {
        yi = yp + x << 2;
        rSum += (stack.r = pr = pixels[yi]) * (rbs = radiusPlus1 - i);
        gSum += (stack.g = pg = pixels[yi + 1]) * rbs;
        bSum += (stack.b = pb = pixels[yi + 2]) * rbs;
        aSum += (stack.a = pa = pixels[yi + 3]) * rbs;
        rInSum += pr;
        gInSum += pg;
        bInSum += pb;
        aInSum += pa;
        stack = stack.next;

        if (i < heightMinus1) {
          yp += width;
        }
      }

      yi = x;
      stackIn = stackStart;
      stackOut = stackEnd;

      for (y = 0; y < height; y++) {
        p = yi << 2;
        pixels[p + 3] = pa = aSum * mulSum >> shgSum;

        if (pa > 0) {
          pa = 255 / pa;
          pixels[p] = (rSum * mulSum >> shgSum) * pa;
          pixels[p + 1] = (gSum * mulSum >> shgSum) * pa;
          pixels[p + 2] = (bSum * mulSum >> shgSum) * pa;
        } else {
          pixels[p] = pixels[p + 1] = pixels[p + 2] = 0;
        }

        rSum -= rOutSum;
        gSum -= gOutSum;
        bSum -= bOutSum;
        aSum -= aOutSum;
        rOutSum -= stackIn.r;
        gOutSum -= stackIn.g;
        bOutSum -= stackIn.b;
        aOutSum -= stackIn.a;
        p = x + ((p = y + radiusPlus1) < heightMinus1 ? p : heightMinus1) * width << 2;
        rSum += rInSum += stackIn.r = pixels[p];
        gSum += gInSum += stackIn.g = pixels[p + 1];
        bSum += bInSum += stackIn.b = pixels[p + 2];
        aSum += aInSum += stackIn.a = pixels[p + 3];
        stackIn = stackIn.next;
        rOutSum += pr = stackOut.r;
        gOutSum += pg = stackOut.g;
        bOutSum += pb = stackOut.b;
        aOutSum += pa = stackOut.a;
        rInSum -= pr;
        gInSum -= pg;
        bInSum -= pb;
        aInSum -= pa;
        stackOut = stackOut.next;
        yi += width;
      }
    }

    return imageData;
  }
  /**
   *
   */


  var BlurStack = function BlurStack() {
    _classCallCheck$1(this, BlurStack);

    this.r = 0;
    this.g = 0;
    this.b = 0;
    this.a = 0;
    this.next = null;
  };

  /**
   * Whether a value is `null` or `undefined`.
   * @param {Any} val
   * @returns {boolean}
   */

  var isNullish = function isNullish(val) {
    return val === null || val === undefined;
  };
  /**
  * @callback module:canvg.ForceRedraw
  * @returns {boolean}
  */

  /**
  * @typedef {PlainObject} module:canvg.CanvgOptions
  * @property {boolean} opts.ignoreMouse true => ignore mouse events
  * @property {boolean} opts.ignoreAnimation true => ignore animations
  * @property {boolean} opts.ignoreDimensions true => does not try to resize canvas
  * @property {boolean} opts.ignoreClear true => does not clear canvas
  * @property {Integer} opts.offsetX int => draws at a x offset
  * @property {Integer} opts.offsetY int => draws at a y offset
  * @property {Integer} opts.scaleWidth int => scales horizontally to width
  * @property {Integer} opts.scaleHeight int => scales vertically to height
  * @property {module:canvg.ForceRedraw} opts.forceRedraw function => will call the function on every frame, if it returns true, will redraw
  * @property {boolean} opts.log Adds log function
  * @property {boolean} opts.useCORS Whether to set CORS `crossOrigin` for the image to `Anonymous`
  */

  /**
  * If called with no arguments, it will replace all `<svg>` elements on the page
  * with `<canvas>` elements.
  * @function module:canvg.canvg
  * @param {HTMLCanvasElement|string} target canvas element or the id of a canvas element
  * @param {string|XMLDocument} s - svg string, url to svg file, or xml document
  * @param {module:canvg.CanvgOptions} [opts] Optional hash of options
  * @returns {Promise} All the function after the first render is completed with dom
  */


  var canvg = function canvg(target, s, opts) {
    // no parameters
    if (isNullish(target) && isNullish(s) && isNullish(opts)) {
      var svgTags = document.querySelectorAll('svg');
      return Promise.all(_toConsumableArray(svgTags).map(function (svgTag) {
        var c = document.createElement('canvas');
        c.width = svgTag.clientWidth;
        c.height = svgTag.clientHeight;
        svgTag.before(c);
        svgTag.remove();
        var div = document.createElement('div');
        div.append(svgTag);
        return canvg(c, div.innerHTML);
      }));
    }

    if (typeof target === 'string') {
      target = document.getElementById(target);
    } // store class on canvas


    if (!isNullish(target.svg)) target.svg.stop();
    var svg = build(opts || {}); // on i.e. 8 for flash canvas, we can't assign the property so check for it

    if (!(target.childNodes.length === 1 && target.childNodes[0].nodeName === 'OBJECT')) {
      target.svg = svg;
    }

    var ctx = target.getContext('2d');

    if (typeof s.documentElement !== 'undefined') {
      // load from xml doc
      return svg.loadXmlDoc(ctx, s);
    }

    if (s.substr(0, 1) === '<') {
      // load from xml string
      return svg.loadXml(ctx, s);
    } // load from url


    return svg.load(ctx, s);
  };
  /**
  * @param {module:canvg.CanvgOptions} opts
  * @returns {Object}
  * @todo Flesh out exactly what object is returned here (after updating to latest and reincluding our changes here and those of StackBlur)
  */

  function build(opts) {
    var svg = {
      opts: opts
    };
    svg.FRAMERATE = 30;
    svg.MAX_VIRTUAL_PIXELS = 30000;

    svg.log = function (msg) {
      /* */
    };

    if (svg.opts.log === true && typeof console !== 'undefined') {
      svg.log = function (msg) {
        console.log(msg);
      }; // eslint-disable-line no-console

    } // globals


    svg.init = function (ctx) {
      var uniqueId = 0;

      svg.UniqueId = function () {
        uniqueId++;
        return 'canvg' + uniqueId;
      };

      svg.Definitions = {};
      svg.Styles = {};
      svg.Animations = [];
      svg.Images = [];
      svg.ctx = ctx;
      svg.ViewPort = {
        viewPorts: [],
        Clear: function Clear() {
          this.viewPorts = [];
        },
        SetCurrent: function SetCurrent(width, height) {
          this.viewPorts.push({
            width: width,
            height: height
          });
        },
        RemoveCurrent: function RemoveCurrent() {
          this.viewPorts.pop();
        },
        Current: function Current() {
          return this.viewPorts[this.viewPorts.length - 1];
        },
        width: function width() {
          return this.Current().width;
        },
        height: function height() {
          return this.Current().height;
        },
        ComputeSize: function ComputeSize(d) {
          if (!isNullish(d) && typeof d === 'number') return d;
          if (d === 'x') return this.width();
          if (d === 'y') return this.height();
          return Math.sqrt(Math.pow(this.width(), 2) + Math.pow(this.height(), 2)) / Math.sqrt(2);
        }
      };
    };

    svg.init(); // images loaded

    svg.ImagesLoaded = function () {
      return svg.Images.every(function (img) {
        return img.loaded;
      });
    }; // trim


    svg.trim = function (s) {
      return s.replace(/^\s+|\s+$/g, '');
    }; // compress spaces


    svg.compressSpaces = function (s) {
      return s.replace(/[\s\r\t\n]+/gm, ' ');
    }; // ajax
    // Todo: Replace with `fetch` and polyfill


    svg.ajax = function (url, asynch) {
      var AJAX = window.XMLHttpRequest ? new XMLHttpRequest() : new window.ActiveXObject('Microsoft.XMLHTTP');

      if (asynch) {
        return new Promise(function (resolve, reject) {
          // eslint-disable-line promise/avoid-new
          var req = AJAX.open('GET', url, true);
          req.addEventListener('load', function () {
            resolve(AJAX.responseText);
          });
          AJAX.send(null);
        });
      }

      AJAX.open('GET', url, false);
      AJAX.send(null);
      return AJAX.responseText;
    }; // parse xml


    svg.parseXml = function (xml) {
      if (window.DOMParser) {
        var parser = new DOMParser();
        return parser.parseFromString(xml, 'text/xml');
      }

      xml = xml.replace(/<!DOCTYPE svg[^>]*>/, '');
      var xmlDoc = new window.ActiveXObject('Microsoft.XMLDOM');
      xmlDoc.async = 'false';
      xmlDoc.loadXML(xml);
      return xmlDoc;
    }; // text extensions
    // get the text baseline


    var textBaselineMapping = {
      baseline: 'alphabetic',
      'before-edge': 'top',
      'text-before-edge': 'top',
      middle: 'middle',
      central: 'middle',
      'after-edge': 'bottom',
      'text-after-edge': 'bottom',
      ideographic: 'ideographic',
      alphabetic: 'alphabetic',
      hanging: 'hanging',
      mathematical: 'alphabetic'
    };

    svg.Property =
    /*#__PURE__*/
    function () {
      function Property(name, value) {
        _classCallCheck(this, Property);

        this.name = name;
        this.value = value;
      }

      _createClass(Property, [{
        key: "getValue",
        value: function getValue() {
          return this.value;
        }
      }, {
        key: "hasValue",
        value: function hasValue() {
          return !isNullish(this.value) && this.value !== '';
        } // return the numerical value of the property

      }, {
        key: "numValue",
        value: function numValue() {
          if (!this.hasValue()) return 0;
          var n = parseFloat(this.value);

          if (String(this.value).endsWith('%')) {
            n /= 100.0;
          }

          return n;
        }
      }, {
        key: "valueOrDefault",
        value: function valueOrDefault(def) {
          if (this.hasValue()) return this.value;
          return def;
        }
      }, {
        key: "numValueOrDefault",
        value: function numValueOrDefault(def) {
          if (this.hasValue()) return this.numValue();
          return def;
        } // color extensions
        // augment the current color value with the opacity

      }, {
        key: "addOpacity",
        value: function addOpacity(opacityProp) {
          var newValue = this.value;

          if (!isNullish(opacityProp.value) && opacityProp.value !== '' && typeof this.value === 'string') {
            // can only add opacity to colors, not patterns
            var color = new RGBColor(this.value);

            if (color.ok) {
              newValue = 'rgba(' + color.r + ', ' + color.g + ', ' + color.b + ', ' + opacityProp.numValue() + ')';
            }
          }

          return new svg.Property(this.name, newValue);
        } // definition extensions
        // get the definition from the definitions table

      }, {
        key: "getDefinition",
        value: function getDefinition() {
          var name = this.value.match(/#([^)'"]+)/);

          if (name) {
            name = name[1];
          }

          if (!name) {
            name = this.value;
          }

          return svg.Definitions[name];
        }
      }, {
        key: "isUrlDefinition",
        value: function isUrlDefinition() {
          return this.value.startsWith('url(');
        }
      }, {
        key: "getFillStyleDefinition",
        value: function getFillStyleDefinition(e, opacityProp) {
          var def = this.getDefinition(); // gradient

          if (!isNullish(def) && def.createGradient) {
            return def.createGradient(svg.ctx, e, opacityProp);
          } // pattern


          if (!isNullish(def) && def.createPattern) {
            if (def.getHrefAttribute().hasValue()) {
              var pt = def.attribute('patternTransform');
              def = def.getHrefAttribute().getDefinition();

              if (pt.hasValue()) {
                def.attribute('patternTransform', true).value = pt.value;
              }
            }

            return def.createPattern(svg.ctx, e);
          }

          return null;
        } // length extensions

      }, {
        key: "getDPI",
        value: function getDPI(viewPort) {
          return 96.0; // TODO: compute?
        }
      }, {
        key: "getEM",
        value: function getEM(viewPort) {
          var em = 12;
          var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);
          if (fontSize.hasValue()) em = fontSize.toPixels(viewPort);
          return em;
        }
      }, {
        key: "getUnits",
        value: function getUnits() {
          return String(this.value).replace(/[0-9.-]/g, '');
        } // get the length as pixels

      }, {
        key: "toPixels",
        value: function toPixels(viewPort, processPercent) {
          if (!this.hasValue()) return 0;
          var s = String(this.value);
          if (s.endsWith('em')) return this.numValue() * this.getEM(viewPort);
          if (s.endsWith('ex')) return this.numValue() * this.getEM(viewPort) / 2.0;
          if (s.endsWith('px')) return this.numValue();
          if (s.endsWith('pt')) return this.numValue() * this.getDPI(viewPort) * (1.0 / 72.0);
          if (s.endsWith('pc')) return this.numValue() * 15;
          if (s.endsWith('cm')) return this.numValue() * this.getDPI(viewPort) / 2.54;
          if (s.endsWith('mm')) return this.numValue() * this.getDPI(viewPort) / 25.4;
          if (s.endsWith('in')) return this.numValue() * this.getDPI(viewPort);
          if (s.endsWith('%')) return this.numValue() * svg.ViewPort.ComputeSize(viewPort);
          var n = this.numValue();
          if (processPercent && n < 1.0) return n * svg.ViewPort.ComputeSize(viewPort);
          return n;
        } // time extensions
        // get the time as milliseconds

      }, {
        key: "toMilliseconds",
        value: function toMilliseconds() {
          if (!this.hasValue()) return 0;
          var s = String(this.value);
          if (s.endsWith('ms')) return this.numValue();
          if (s.endsWith('s')) return this.numValue() * 1000;
          return this.numValue();
        } // angle extensions
        // get the angle as radians

      }, {
        key: "toRadians",
        value: function toRadians() {
          if (!this.hasValue()) return 0;
          var s = String(this.value);
          if (s.endsWith('deg')) return this.numValue() * (Math.PI / 180.0);
          if (s.endsWith('grad')) return this.numValue() * (Math.PI / 200.0);
          if (s.endsWith('rad')) return this.numValue();
          return this.numValue() * (Math.PI / 180.0);
        }
      }, {
        key: "toTextBaseline",
        value: function toTextBaseline() {
          if (!this.hasValue()) return null;
          return textBaselineMapping[this.value];
        }
      }]);

      return Property;
    }(); // fonts


    svg.Font = {
      Styles: 'normal|italic|oblique|inherit',
      Variants: 'normal|small-caps|inherit',
      Weights: 'normal|bold|bolder|lighter|100|200|300|400|500|600|700|800|900|inherit',
      CreateFont: function CreateFont(fontStyle, fontVariant, fontWeight, fontSize, fontFamily, inherit) {
        var f = !isNullish(inherit) ? this.Parse(inherit) : this.CreateFont('', '', '', '', '', svg.ctx.font);
        return {
          fontFamily: fontFamily || f.fontFamily,
          fontSize: fontSize || f.fontSize,
          fontStyle: fontStyle || f.fontStyle,
          fontWeight: fontWeight || f.fontWeight,
          fontVariant: fontVariant || f.fontVariant,
          toString: function toString() {
            return [this.fontStyle, this.fontVariant, this.fontWeight, this.fontSize, this.fontFamily].join(' ');
          }
        };
      },
      Parse: function Parse(s) {
        var _this = this;

        var f = {};
        var ds = svg.trim(svg.compressSpaces(s || '')).split(' ');
        var set = {
          fontSize: false,
          fontStyle: false,
          fontWeight: false,
          fontVariant: false
        };
        var ff = '';
        ds.forEach(function (d) {
          if (!set.fontStyle && _this.Styles.includes(d)) {
            if (d !== 'inherit') {
              f.fontStyle = d;
            }

            set.fontStyle = true;
          } else if (!set.fontVariant && _this.Variants.includes(d)) {
            if (d !== 'inherit') {
              f.fontVariant = d;
            }

            set.fontStyle = set.fontVariant = true;
          } else if (!set.fontWeight && _this.Weights.includes(d)) {
            if (d !== 'inherit') {
              f.fontWeight = d;
            }

            set.fontStyle = set.fontVariant = set.fontWeight = true;
          } else if (!set.fontSize) {
            if (d !== 'inherit') {
              f.fontSize = d.split('/')[0];
            }

            set.fontStyle = set.fontVariant = set.fontWeight = set.fontSize = true;
          } else if (d !== 'inherit') {
            ff += d;
          }
        });

        if (ff !== '') {
          f.fontFamily = ff;
        }

        return f;
      }
    }; // points and paths

    svg.ToNumberArray = function (s) {
      var a = svg.trim(svg.compressSpaces((s || '').replace(/,/g, ' '))).split(' ');
      return a.map(function (_a) {
        return parseFloat(_a);
      });
    };

    svg.Point =
    /*#__PURE__*/
    function () {
      function _class(x, y) {
        _classCallCheck(this, _class);

        this.x = x;
        this.y = y;
      }

      _createClass(_class, [{
        key: "angleTo",
        value: function angleTo(p) {
          return Math.atan2(p.y - this.y, p.x - this.x);
        }
      }, {
        key: "applyTransform",
        value: function applyTransform(v) {
          var xp = this.x * v[0] + this.y * v[2] + v[4];
          var yp = this.x * v[1] + this.y * v[3] + v[5];
          this.x = xp;
          this.y = yp;
        }
      }]);

      return _class;
    }();

    svg.CreatePoint = function (s) {
      var a = svg.ToNumberArray(s);
      return new svg.Point(a[0], a[1]);
    };

    svg.CreatePath = function (s) {
      var a = svg.ToNumberArray(s);
      var path = [];

      for (var i = 0; i < a.length; i += 2) {
        path.push(new svg.Point(a[i], a[i + 1]));
      }

      return path;
    }; // bounding box


    svg.BoundingBox =
    /*#__PURE__*/
    function () {
      function _class2(x1, y1, x2, y2) {
        _classCallCheck(this, _class2);

        // pass in initial points if you want
        this.x1 = Number.NaN;
        this.y1 = Number.NaN;
        this.x2 = Number.NaN;
        this.y2 = Number.NaN;
        this.addPoint(x1, y1);
        this.addPoint(x2, y2);
      }

      _createClass(_class2, [{
        key: "x",
        value: function x() {
          return this.x1;
        }
      }, {
        key: "y",
        value: function y() {
          return this.y1;
        }
      }, {
        key: "width",
        value: function width() {
          return this.x2 - this.x1;
        }
      }, {
        key: "height",
        value: function height() {
          return this.y2 - this.y1;
        }
      }, {
        key: "addPoint",
        value: function addPoint(x, y) {
          if (!isNullish(x)) {
            if (isNaN(this.x1) || isNaN(this.x2)) {
              this.x1 = x;
              this.x2 = x;
            }

            if (x < this.x1) this.x1 = x;
            if (x > this.x2) this.x2 = x;
          }

          if (!isNullish(y)) {
            if (isNaN(this.y1) || isNaN(this.y2)) {
              this.y1 = y;
              this.y2 = y;
            }

            if (y < this.y1) this.y1 = y;
            if (y > this.y2) this.y2 = y;
          }
        }
      }, {
        key: "addX",
        value: function addX(x) {
          this.addPoint(x, null);
        }
      }, {
        key: "addY",
        value: function addY(y) {
          this.addPoint(null, y);
        }
      }, {
        key: "addBoundingBox",
        value: function addBoundingBox(bb) {
          this.addPoint(bb.x1, bb.y1);
          this.addPoint(bb.x2, bb.y2);
        }
      }, {
        key: "addQuadraticCurve",
        value: function addQuadraticCurve(p0x, p0y, p1x, p1y, p2x, p2y) {
          var cp1x = p0x + 2 / 3 * (p1x - p0x); // CP1 = QP0 + 2/3 *(QP1-QP0)

          var cp1y = p0y + 2 / 3 * (p1y - p0y); // CP1 = QP0 + 2/3 *(QP1-QP0)

          var cp2x = cp1x + 1 / 3 * (p2x - p0x); // CP2 = CP1 + 1/3 *(QP2-QP0)

          var cp2y = cp1y + 1 / 3 * (p2y - p0y); // CP2 = CP1 + 1/3 *(QP2-QP0)

          this.addBezierCurve(p0x, p0y, cp1x, cp2x, cp1y, cp2y, p2x, p2y);
        }
      }, {
        key: "addBezierCurve",
        value: function addBezierCurve(p0x, p0y, p1x, p1y, p2x, p2y, p3x, p3y) {
          var _this2 = this;

          // from http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html
          var p0 = [p0x, p0y],
              p1 = [p1x, p1y],
              p2 = [p2x, p2y],
              p3 = [p3x, p3y];
          this.addPoint(p0[0], p0[1]);
          this.addPoint(p3[0], p3[1]);

          var _loop = function _loop(i) {
            var f = function f(t) {
              return Math.pow(1 - t, 3) * p0[i] + 3 * Math.pow(1 - t, 2) * t * p1[i] + 3 * (1 - t) * Math.pow(t, 2) * p2[i] + Math.pow(t, 3) * p3[i];
            };

            var b = 6 * p0[i] - 12 * p1[i] + 6 * p2[i];
            var a = -3 * p0[i] + 9 * p1[i] - 9 * p2[i] + 3 * p3[i];
            var c = 3 * p1[i] - 3 * p0[i];

            if (a === 0) {
              if (b === 0) return "continue";
              var t = -c / b;

              if (t > 0 && t < 1) {
                if (i === 0) _this2.addX(f(t));
                if (i === 1) _this2.addY(f(t));
              }

              return "continue";
            }

            var b2ac = Math.pow(b, 2) - 4 * c * a;
            if (b2ac < 0) return "continue";
            var t1 = (-b + Math.sqrt(b2ac)) / (2 * a);

            if (t1 > 0 && t1 < 1) {
              if (i === 0) _this2.addX(f(t1));
              if (i === 1) _this2.addY(f(t1));
            }

            var t2 = (-b - Math.sqrt(b2ac)) / (2 * a);

            if (t2 > 0 && t2 < 1) {
              if (i === 0) _this2.addX(f(t2));
              if (i === 1) _this2.addY(f(t2));
            }
          };

          for (var i = 0; i <= 1; i++) {
            var _ret = _loop(i);

            if (_ret === "continue") continue;
          }
        }
      }, {
        key: "isPointInBox",
        value: function isPointInBox(x, y) {
          return this.x1 <= x && x <= this.x2 && this.y1 <= y && y <= this.y2;
        }
      }]);

      return _class2;
    }(); // transforms


    svg.Transform =
    /*#__PURE__*/
    function () {
      function _class3(v) {
        var _this6 = this;

        _classCallCheck(this, _class3);

        this.Type = {
          translate: function translate(s) {
            _classCallCheck(this, translate);

            this.p = svg.CreatePoint(s);

            this.apply = function (ctx) {
              ctx.translate(this.p.x || 0.0, this.p.y || 0.0);
            };

            this.unapply = function (ctx) {
              ctx.translate(-1.0 * this.p.x || 0.0, -1.0 * this.p.y || 0.0);
            };

            this.applyToPoint = function (p) {
              p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]);
            };
          },
          rotate: function rotate(s) {
            _classCallCheck(this, rotate);

            var a = svg.ToNumberArray(s);
            this.angle = new svg.Property('angle', a[0]);
            this.cx = a[1] || 0;
            this.cy = a[2] || 0;

            this.apply = function (ctx) {
              ctx.translate(this.cx, this.cy);
              ctx.rotate(this.angle.toRadians());
              ctx.translate(-this.cx, -this.cy);
            };

            this.unapply = function (ctx) {
              ctx.translate(this.cx, this.cy);
              ctx.rotate(-1.0 * this.angle.toRadians());
              ctx.translate(-this.cx, -this.cy);
            };

            this.applyToPoint = function (p) {
              var _a = this.angle.toRadians();

              p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]);
              p.applyTransform([Math.cos(_a), Math.sin(_a), -Math.sin(_a), Math.cos(_a), 0, 0]);
              p.applyTransform([1, 0, 0, 1, -this.p.x || 0.0, -this.p.y || 0.0]);
            };
          },
          scale: function scale(s) {
            _classCallCheck(this, scale);

            this.p = svg.CreatePoint(s);

            this.apply = function (ctx) {
              ctx.scale(this.p.x || 1.0, this.p.y || this.p.x || 1.0);
            };

            this.unapply = function (ctx) {
              ctx.scale(1.0 / this.p.x || 1.0, 1.0 / this.p.y || this.p.x || 1.0);
            };

            this.applyToPoint = function (p) {
              p.applyTransform([this.p.x || 0.0, 0, 0, this.p.y || 0.0, 0, 0]);
            };
          },
          matrix: function matrix(s) {
            _classCallCheck(this, matrix);

            this.m = svg.ToNumberArray(s);

            this.apply = function (ctx) {
              ctx.transform(this.m[0], this.m[1], this.m[2], this.m[3], this.m[4], this.m[5]);
            };

            this.applyToPoint = function (p) {
              p.applyTransform(this.m);
            };
          }
        };
        Object.assign(this.Type, {
          SkewBase:
          /*#__PURE__*/
          function (_this$Type$matrix) {
            _inherits(SkewBase, _this$Type$matrix);

            function SkewBase(s) {
              var _this3;

              _classCallCheck(this, SkewBase);

              _this3 = _possibleConstructorReturn(this, _getPrototypeOf(SkewBase).call(this, s));
              _this3.angle = new svg.Property('angle', s);
              return _this3;
            }

            return SkewBase;
          }(this.Type.matrix)
        });
        Object.assign(this.Type, {
          skewX:
          /*#__PURE__*/
          function (_this$Type$SkewBase) {
            _inherits(skewX, _this$Type$SkewBase);

            function skewX(s) {
              var _this4;

              _classCallCheck(this, skewX);

              _this4 = _possibleConstructorReturn(this, _getPrototypeOf(skewX).call(this, s));
              _this4.m = [1, 0, Math.tan(_this4.angle.toRadians()), 1, 0, 0];
              return _this4;
            }

            return skewX;
          }(this.Type.SkewBase),
          skewY:
          /*#__PURE__*/
          function (_this$Type$SkewBase2) {
            _inherits(skewY, _this$Type$SkewBase2);

            function skewY(s) {
              var _this5;

              _classCallCheck(this, skewY);

              _this5 = _possibleConstructorReturn(this, _getPrototypeOf(skewY).call(this, s));
              _this5.m = [1, Math.tan(_this5.angle.toRadians()), 0, 1, 0, 0];
              return _this5;
            }

            return skewY;
          }(this.Type.SkewBase)
        });
        var data = svg.trim(svg.compressSpaces(v)).replace(/\)([a-zA-Z])/g, ') $1').replace(/\)(\s?,\s?)/g, ') ').split(/\s(?=[a-z])/);
        this.transforms = data.map(function (d) {
          var type = svg.trim(d.split('(')[0]);
          var s = d.split('(')[1].replace(')', '');
          var transform = new _this6.Type[type](s);
          transform.type = type;
          return transform;
        });
      }

      _createClass(_class3, [{
        key: "apply",
        value: function apply(ctx) {
          this.transforms.forEach(function (transform) {
            transform.apply(ctx);
          });
        }
      }, {
        key: "unapply",
        value: function unapply(ctx) {
          for (var i = this.transforms.length - 1; i >= 0; i--) {
            this.transforms[i].unapply(ctx);
          }
        }
      }, {
        key: "applyToPoint",
        value: function applyToPoint(p) {
          this.transforms.forEach(function (transform) {
            transform.applyToPoint(p);
          });
        }
      }]);

      return _class3;
    }(); // aspect ratio


    svg.AspectRatio = function (ctx, aspectRatio, width, desiredWidth, height, desiredHeight, minX, minY, refX, refY) {
      // aspect ratio - https://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute
      aspectRatio = svg.compressSpaces(aspectRatio);
      aspectRatio = aspectRatio.replace(/^defer\s/, ''); // ignore defer

      var align = aspectRatio.split(' ')[0] || 'xMidYMid';
      var meetOrSlice = aspectRatio.split(' ')[1] || 'meet'; // calculate scale

      var scaleX = width / desiredWidth;
      var scaleY = height / desiredHeight;
      var scaleMin = Math.min(scaleX, scaleY);
      var scaleMax = Math.max(scaleX, scaleY);

      if (meetOrSlice === 'meet') {
        desiredWidth *= scaleMin;
        desiredHeight *= scaleMin;
      }

      if (meetOrSlice === 'slice') {
        desiredWidth *= scaleMax;
        desiredHeight *= scaleMax;
      }

      refX = new svg.Property('refX', refX);
      refY = new svg.Property('refY', refY);

      if (refX.hasValue() && refY.hasValue()) {
        ctx.translate(-scaleMin * refX.toPixels('x'), -scaleMin * refY.toPixels('y'));
      } else {
        // align
        if (align.startsWith('xMid') && (meetOrSlice === 'meet' && scaleMin === scaleY || meetOrSlice === 'slice' && scaleMax === scaleY)) ctx.translate(width / 2.0 - desiredWidth / 2.0, 0);
        if (align.endsWith('YMid') && (meetOrSlice === 'meet' && scaleMin === scaleX || meetOrSlice === 'slice' && scaleMax === scaleX)) ctx.translate(0, height / 2.0 - desiredHeight / 2.0);
        if (align.startsWith('xMax') && (meetOrSlice === 'meet' && scaleMin === scaleY || meetOrSlice === 'slice' && scaleMax === scaleY)) ctx.translate(width - desiredWidth, 0);
        if (align.endsWith('YMax') && (meetOrSlice === 'meet' && scaleMin === scaleX || meetOrSlice === 'slice' && scaleMax === scaleX)) ctx.translate(0, height - desiredHeight);
      } // scale


      if (align === 'none') ctx.scale(scaleX, scaleY);else if (meetOrSlice === 'meet') ctx.scale(scaleMin, scaleMin);else if (meetOrSlice === 'slice') ctx.scale(scaleMax, scaleMax); // translate

      ctx.translate(isNullish(minX) ? 0 : -minX, isNullish(minY) ? 0 : -minY);
    }; // elements


    svg.Element = {};
    svg.EmptyProperty = new svg.Property('EMPTY', '');

    svg.Element.ElementBase =
    /*#__PURE__*/
    function () {
      function _class4(node) {
        var _this7 = this;

        _classCallCheck(this, _class4);

        // Argument from inheriting class
        this.captureTextNodes = arguments[1]; // eslint-disable-line prefer-rest-params

        this.attributes = {};
        this.styles = {};
        this.children = [];

        if (!isNullish(node) && node.nodeType === 1) {
          // ELEMENT_NODE
          // add children
          _toConsumableArray(node.childNodes).forEach(function (childNode) {
            if (childNode.nodeType === 1) {
              _this7.addChild(childNode, true); // ELEMENT_NODE

            }

            if (_this7.captureTextNodes && (childNode.nodeType === 3 || childNode.nodeType === 4)) {
              var text = childNode.nodeValue || childNode.text || '';

              if (svg.trim(svg.compressSpaces(text)) !== '') {
                _this7.addChild(new svg.Element.tspan(childNode), false); // TEXT_NODE

              }
            }
          }); // add attributes


          _toConsumableArray(node.attributes).forEach(function (_ref) {
            var nodeName = _ref.nodeName,
                nodeValue = _ref.nodeValue;
            _this7.attributes[nodeName] = new svg.Property(nodeName, nodeValue);
          }); // add tag styles


          var styles = svg.Styles[node.nodeName];

          if (!isNullish(styles)) {
            Object.entries(styles).forEach(function (_ref2) {
              var _ref3 = _slicedToArray(_ref2, 2),
                  name = _ref3[0],
                  styleValue = _ref3[1];

              _this7.styles[name] = styleValue;
            });
          } // add class styles


          if (this.attribute('class').hasValue()) {
            var classes = svg.compressSpaces(this.attribute('class').value).split(' ');
            classes.forEach(function (clss) {
              styles = svg.Styles['.' + clss];

              if (!isNullish(styles)) {
                Object.entries(styles).forEach(function (_ref4) {
                  var _ref5 = _slicedToArray(_ref4, 2),
                      name = _ref5[0],
                      styleValue = _ref5[1];

                  _this7.styles[name] = styleValue;
                });
              }

              styles = svg.Styles[node.nodeName + '.' + clss];

              if (!isNullish(styles)) {
                Object.entries(styles).forEach(function (_ref6) {
                  var _ref7 = _slicedToArray(_ref6, 2),
                      name = _ref7[0],
                      styleValue = _ref7[1];

                  _this7.styles[name] = styleValue;
                });
              }
            });
          } // add id styles


          if (this.attribute('id').hasValue()) {
            var _styles = svg.Styles['#' + this.attribute('id').value];

            if (!isNullish(_styles)) {
              Object.entries(_styles).forEach(function (_ref8) {
                var _ref9 = _slicedToArray(_ref8, 2),
                    name = _ref9[0],
                    styleValue = _ref9[1];

                _this7.styles[name] = styleValue;
              });
            }
          } // add inline styles


          if (this.attribute('style').hasValue()) {
            var _styles2 = this.attribute('style').value.split(';');

            _styles2.forEach(function (style) {
              if (svg.trim(style) !== '') {
                var _style$split = style.split(':'),
                    name = _style$split.name,
                    value = _style$split.value;

                name = svg.trim(name);
                value = svg.trim(value);
                _this7.styles[name] = new svg.Property(name, value);
              }
            });
          } // add id


          if (this.attribute('id').hasValue()) {
            if (isNullish(svg.Definitions[this.attribute('id').value])) {
              svg.Definitions[this.attribute('id').value] = this;
            }
          }
        }
      } // get or create attribute


      _createClass(_class4, [{
        key: "attribute",
        value: function attribute(name, createIfNotExists) {
          var a = this.attributes[name];
          if (!isNullish(a)) return a;

          if (createIfNotExists === true) {
            a = new svg.Property(name, '');
            this.attributes[name] = a;
          }

          return a || svg.EmptyProperty;
        }
      }, {
        key: "getHrefAttribute",
        value: function getHrefAttribute() {
          for (var a in this.attributes) {
            if (a.endsWith(':href')) {
              return this.attributes[a];
            }
          }

          return svg.EmptyProperty;
        } // get or create style, crawls up node tree

      }, {
        key: "style",
        value: function style(name, createIfNotExists, skipAncestors) {
          var s = this.styles[name];
          if (!isNullish(s)) return s;
          var a = this.attribute(name);

          if (!isNullish(a) && a.hasValue()) {
            this.styles[name] = a; // move up to me to cache

            return a;
          }

          if (skipAncestors !== true) {
            var p = this.parent;

            if (!isNullish(p)) {
              var ps = p.style(name);

              if (!isNullish(ps) && ps.hasValue()) {
                return ps;
              }
            }
          }

          if (createIfNotExists === true) {
            s = new svg.Property(name, '');
            this.styles[name] = s;
          }

          return s || svg.EmptyProperty;
        } // base render

      }, {
        key: "render",
        value: function render(ctx) {
          // don't render display=none
          if (this.style('display').value === 'none') return; // don't render visibility=hidden

          if (this.style('visibility').value === 'hidden') return;
          ctx.save();

          if (this.attribute('mask').hasValue()) {
            // mask
            var mask = this.attribute('mask').getDefinition();
            if (!isNullish(mask)) mask.apply(ctx, this);
          } else if (this.style('filter').hasValue()) {
            // filter
            var filter = this.style('filter').getDefinition();
            if (!isNullish(filter)) filter.apply(ctx, this);
          } else {
            this.setContext(ctx);
            this.renderChildren(ctx);
            this.clearContext(ctx);
          }

          ctx.restore();
        } // base set context

      }, {
        key: "setContext",
        value: function setContext(ctx) {} // OVERRIDE ME!
        // base clear context

      }, {
        key: "clearContext",
        value: function clearContext(ctx) {} // OVERRIDE ME!
        // base render children

      }, {
        key: "renderChildren",
        value: function renderChildren(ctx) {
          this.children.forEach(function (child) {
            child.render(ctx);
          });
        }
      }, {
        key: "addChild",
        value: function addChild(childNode, create) {
          var child = create ? svg.CreateElement(childNode) : childNode;
          child.parent = this;

          if (child.type !== 'title') {
            this.children.push(child);
          }
        }
      }]);

      return _class4;
    }();

    svg.Element.RenderedElementBase =
    /*#__PURE__*/
    function (_svg$Element$ElementB) {
      _inherits(_class5, _svg$Element$ElementB);

      function _class5() {
        _classCallCheck(this, _class5);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class5).apply(this, arguments));
      }

      _createClass(_class5, [{
        key: "setContext",
        value: function setContext(ctx) {
          // fill
          if (this.style('fill').isUrlDefinition()) {
            var fs = this.style('fill').getFillStyleDefinition(this, this.style('fill-opacity'));
            if (!isNullish(fs)) ctx.fillStyle = fs;
          } else if (this.style('fill').hasValue()) {
            var fillStyle = this.style('fill');
            if (fillStyle.value === 'currentColor') fillStyle.value = this.style('color').value;
            ctx.fillStyle = fillStyle.value === 'none' ? 'rgba(0,0,0,0)' : fillStyle.value;
          }

          if (this.style('fill-opacity').hasValue()) {
            var _fillStyle = new svg.Property('fill', ctx.fillStyle);

            _fillStyle = _fillStyle.addOpacity(this.style('fill-opacity'));
            ctx.fillStyle = _fillStyle.value;
          } // stroke


          if (this.style('stroke').isUrlDefinition()) {
            var _fs = this.style('stroke').getFillStyleDefinition(this, this.style('stroke-opacity'));

            if (!isNullish(_fs)) ctx.strokeStyle = _fs;
          } else if (this.style('stroke').hasValue()) {
            var strokeStyle = this.style('stroke');
            if (strokeStyle.value === 'currentColor') strokeStyle.value = this.style('color').value;
            ctx.strokeStyle = strokeStyle.value === 'none' ? 'rgba(0,0,0,0)' : strokeStyle.value;
          }

          if (this.style('stroke-opacity').hasValue()) {
            var _strokeStyle = new svg.Property('stroke', ctx.strokeStyle);

            _strokeStyle = _strokeStyle.addOpacity(this.style('stroke-opacity'));
            ctx.strokeStyle = _strokeStyle.value;
          }

          if (this.style('stroke-width').hasValue()) {
            var newLineWidth = this.style('stroke-width').toPixels();
            ctx.lineWidth = newLineWidth === 0 ? 0.001 : newLineWidth; // browsers don't respect 0
          }

          if (this.style('stroke-linecap').hasValue()) ctx.lineCap = this.style('stroke-linecap').value;
          if (this.style('stroke-linejoin').hasValue()) ctx.lineJoin = this.style('stroke-linejoin').value;
          if (this.style('stroke-miterlimit').hasValue()) ctx.miterLimit = this.style('stroke-miterlimit').value;

          if (this.style('stroke-dasharray').hasValue() && this.style('stroke-dasharray').value !== 'none') {
            var gaps = svg.ToNumberArray(this.style('stroke-dasharray').value);

            if (typeof ctx.setLineDash !== 'undefined') {
              ctx.setLineDash(gaps);
            } else if (typeof ctx.webkitLineDash !== 'undefined') {
              ctx.webkitLineDash = gaps;
            } else if (typeof ctx.mozDash !== 'undefined' && !(gaps.length === 1 && gaps[0] === 0)) {
              ctx.mozDash = gaps;
            }

            var offset = this.style('stroke-dashoffset').numValueOrDefault(1);

            if (typeof ctx.lineDashOffset !== 'undefined') {
              ctx.lineDashOffset = offset;
            } else if (typeof ctx.webkitLineDashOffset !== 'undefined') {
              ctx.webkitLineDashOffset = offset;
            } else if (typeof ctx.mozDashOffset !== 'undefined') {
              ctx.mozDashOffset = offset;
            }
          } // font


          if (typeof ctx.font !== 'undefined') {
            ctx.font = svg.Font.CreateFont(this.style('font-style').value, this.style('font-variant').value, this.style('font-weight').value, this.style('font-size').hasValue() ? this.style('font-size').toPixels() + 'px' : '', this.style('font-family').value).toString();
          } // transform


          if (this.attribute('transform').hasValue()) {
            var transform = new svg.Transform(this.attribute('transform').value);
            transform.apply(ctx);
          } // clip


          if (this.style('clip-path', false, true).hasValue()) {
            var clip = this.style('clip-path', false, true).getDefinition();
            if (!isNullish(clip)) clip.apply(ctx);
          } // opacity


          if (this.style('opacity').hasValue()) {
            ctx.globalAlpha = this.style('opacity').numValue();
          }
        }
      }]);

      return _class5;
    }(svg.Element.ElementBase);

    svg.Element.PathElementBase =
    /*#__PURE__*/
    function (_svg$Element$Rendered) {
      _inherits(_class6, _svg$Element$Rendered);

      function _class6() {
        _classCallCheck(this, _class6);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class6).apply(this, arguments));
      }

      _createClass(_class6, [{
        key: "path",
        value: function path(ctx) {
          if (!isNullish(ctx)) ctx.beginPath();
          return new svg.BoundingBox();
        }
      }, {
        key: "renderChildren",
        value: function renderChildren(ctx) {
          this.path(ctx);
          svg.Mouse.checkPath(this, ctx);

          if (ctx.fillStyle !== '') {
            if (this.style('fill-rule').valueOrDefault('inherit') !== 'inherit') {
              ctx.fill(this.style('fill-rule').value);
            } else {
              ctx.fill();
            }
          }

          if (ctx.strokeStyle !== '') ctx.stroke();
          var markers = this.getMarkers();

          if (!isNullish(markers)) {
            if (this.style('marker-start').isUrlDefinition()) {
              var marker = this.style('marker-start').getDefinition();
              marker.render(ctx, markers[0][0], markers[0][1]);
            }

            if (this.style('marker-mid').isUrlDefinition()) {
              var _marker = this.style('marker-mid').getDefinition();

              for (var i = 1; i < markers.length - 1; i++) {
                _marker.render(ctx, markers[i][0], markers[i][1]);
              }
            }

            if (this.style('marker-end').isUrlDefinition()) {
              var _marker2 = this.style('marker-end').getDefinition();

              _marker2.render(ctx, markers[markers.length - 1][0], markers[markers.length - 1][1]);
            }
          }
        }
      }, {
        key: "getBoundingBox",
        value: function getBoundingBox() {
          return this.path();
        }
      }, {
        key: "getMarkers",
        value: function getMarkers() {
          return null;
        }
      }]);

      return _class6;
    }(svg.Element.RenderedElementBase); // svg element


    svg.Element.svg =
    /*#__PURE__*/
    function (_svg$Element$Rendered2) {
      _inherits(_class7, _svg$Element$Rendered2);

      function _class7() {
        _classCallCheck(this, _class7);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class7).apply(this, arguments));
      }

      _createClass(_class7, [{
        key: "clearContext",
        value: function clearContext(ctx) {
          _get(_getPrototypeOf(_class7.prototype), "clearContext", this).call(this, ctx);

          svg.ViewPort.RemoveCurrent();
        }
      }, {
        key: "setContext",
        value: function setContext(ctx) {
          // initial values and defaults
          ctx.strokeStyle = 'rgba(0,0,0,0)';
          ctx.lineCap = 'butt';
          ctx.lineJoin = 'miter';
          ctx.miterLimit = 4;

          if (typeof ctx.font !== 'undefined' && typeof window.getComputedStyle !== 'undefined') {
            ctx.font = window.getComputedStyle(ctx.canvas).getPropertyValue('font');
          }

          _get(_getPrototypeOf(_class7.prototype), "setContext", this).call(this, ctx); // create new view port


          if (!this.attribute('x').hasValue()) this.attribute('x', true).value = 0;
          if (!this.attribute('y').hasValue()) this.attribute('y', true).value = 0;
          ctx.translate(this.attribute('x').toPixels('x'), this.attribute('y').toPixels('y'));
          var width = svg.ViewPort.width();
          var height = svg.ViewPort.height();
          if (!this.attribute('width').hasValue()) this.attribute('width', true).value = '100%';
          if (!this.attribute('height').hasValue()) this.attribute('height', true).value = '100%';

          if (typeof this.root === 'undefined') {
            width = this.attribute('width').toPixels('x');
            height = this.attribute('height').toPixels('y');
            var x = 0;
            var y = 0;

            if (this.attribute('refX').hasValue() && this.attribute('refY').hasValue()) {
              x = -this.attribute('refX').toPixels('x');
              y = -this.attribute('refY').toPixels('y');
            }

            if (this.attribute('overflow').valueOrDefault('hidden') !== 'visible') {
              ctx.beginPath();
              ctx.moveTo(x, y);
              ctx.lineTo(width, y);
              ctx.lineTo(width, height);
              ctx.lineTo(x, height);
              ctx.closePath();
              ctx.clip();
            }
          }

          svg.ViewPort.SetCurrent(width, height); // viewbox

          if (this.attribute('viewBox').hasValue()) {
            var viewBox = svg.ToNumberArray(this.attribute('viewBox').value);
            var minX = viewBox[0];
            var minY = viewBox[1];
            width = viewBox[2];
            height = viewBox[3];
            svg.AspectRatio(ctx, this.attribute('preserveAspectRatio').value, svg.ViewPort.width(), width, svg.ViewPort.height(), height, minX, minY, this.attribute('refX').value, this.attribute('refY').value);
            svg.ViewPort.RemoveCurrent();
            svg.ViewPort.SetCurrent(viewBox[2], viewBox[3]);
          }
        }
      }]);

      return _class7;
    }(svg.Element.RenderedElementBase); // rect element


    svg.Element.rect =
    /*#__PURE__*/
    function (_svg$Element$PathElem) {
      _inherits(_class8, _svg$Element$PathElem);

      function _class8() {
        _classCallCheck(this, _class8);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class8).apply(this, arguments));
      }

      _createClass(_class8, [{
        key: "path",
        value: function path(ctx) {
          var x = this.attribute('x').toPixels('x');
          var y = this.attribute('y').toPixels('y');
          var width = this.attribute('width').toPixels('x');
          var height = this.attribute('height').toPixels('y');
          var rx = this.attribute('rx').toPixels('x');
          var ry = this.attribute('ry').toPixels('y');
          if (this.attribute('rx').hasValue() && !this.attribute('ry').hasValue()) ry = rx;
          if (this.attribute('ry').hasValue() && !this.attribute('rx').hasValue()) rx = ry;
          rx = Math.min(rx, width / 2.0);
          ry = Math.min(ry, height / 2.0);

          if (!isNullish(ctx)) {
            ctx.beginPath();
            ctx.moveTo(x + rx, y);
            ctx.lineTo(x + width - rx, y);
            ctx.quadraticCurveTo(x + width, y, x + width, y + ry);
            ctx.lineTo(x + width, y + height - ry);
            ctx.quadraticCurveTo(x + width, y + height, x + width - rx, y + height);
            ctx.lineTo(x + rx, y + height);
            ctx.quadraticCurveTo(x, y + height, x, y + height - ry);
            ctx.lineTo(x, y + ry);
            ctx.quadraticCurveTo(x, y, x + rx, y);
            ctx.closePath();
          }

          return new svg.BoundingBox(x, y, x + width, y + height);
        }
      }]);

      return _class8;
    }(svg.Element.PathElementBase); // circle element


    svg.Element.circle =
    /*#__PURE__*/
    function (_svg$Element$PathElem2) {
      _inherits(_class9, _svg$Element$PathElem2);

      function _class9() {
        _classCallCheck(this, _class9);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class9).apply(this, arguments));
      }

      _createClass(_class9, [{
        key: "path",
        value: function path(ctx) {
          var cx = this.attribute('cx').toPixels('x');
          var cy = this.attribute('cy').toPixels('y');
          var r = this.attribute('r').toPixels();

          if (!isNullish(ctx)) {
            ctx.beginPath();
            ctx.arc(cx, cy, r, 0, Math.PI * 2, true);
            ctx.closePath();
          }

          return new svg.BoundingBox(cx - r, cy - r, cx + r, cy + r);
        }
      }]);

      return _class9;
    }(svg.Element.PathElementBase); // ellipse element


    var KAPPA = 4 * ((Math.sqrt(2) - 1) / 3);

    svg.Element.ellipse =
    /*#__PURE__*/
    function (_svg$Element$PathElem3) {
      _inherits(_class10, _svg$Element$PathElem3);

      function _class10() {
        _classCallCheck(this, _class10);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class10).apply(this, arguments));
      }

      _createClass(_class10, [{
        key: "path",
        value: function path(ctx) {
          var rx = this.attribute('rx').toPixels('x');
          var ry = this.attribute('ry').toPixels('y');
          var cx = this.attribute('cx').toPixels('x');
          var cy = this.attribute('cy').toPixels('y');

          if (!isNullish(ctx)) {
            ctx.beginPath();
            ctx.moveTo(cx, cy - ry);
            ctx.bezierCurveTo(cx + KAPPA * rx, cy - ry, cx + rx, cy - KAPPA * ry, cx + rx, cy);
            ctx.bezierCurveTo(cx + rx, cy + KAPPA * ry, cx + KAPPA * rx, cy + ry, cx, cy + ry);
            ctx.bezierCurveTo(cx - KAPPA * rx, cy + ry, cx - rx, cy + KAPPA * ry, cx - rx, cy);
            ctx.bezierCurveTo(cx - rx, cy - KAPPA * ry, cx - KAPPA * rx, cy - ry, cx, cy - ry);
            ctx.closePath();
          }

          return new svg.BoundingBox(cx - rx, cy - ry, cx + rx, cy + ry);
        }
      }]);

      return _class10;
    }(svg.Element.PathElementBase); // line element


    svg.Element.line =
    /*#__PURE__*/
    function (_svg$Element$PathElem4) {
      _inherits(_class11, _svg$Element$PathElem4);

      function _class11() {
        _classCallCheck(this, _class11);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class11).apply(this, arguments));
      }

      _createClass(_class11, [{
        key: "getPoints",
        value: function getPoints() {
          return [new svg.Point(this.attribute('x1').toPixels('x'), this.attribute('y1').toPixels('y')), new svg.Point(this.attribute('x2').toPixels('x'), this.attribute('y2').toPixels('y'))];
        }
      }, {
        key: "path",
        value: function path(ctx) {
          var points = this.getPoints();

          if (!isNullish(ctx)) {
            ctx.beginPath();
            ctx.moveTo(points[0].x, points[0].y);
            ctx.lineTo(points[1].x, points[1].y);
          }

          return new svg.BoundingBox(points[0].x, points[0].y, points[1].x, points[1].y);
        }
      }, {
        key: "getMarkers",
        value: function getMarkers() {
          var points = this.getPoints();
          var a = points[0].angleTo(points[1]);
          return [[points[0], a], [points[1], a]];
        }
      }]);

      return _class11;
    }(svg.Element.PathElementBase); // polyline element


    svg.Element.polyline =
    /*#__PURE__*/
    function (_svg$Element$PathElem5) {
      _inherits(_class12, _svg$Element$PathElem5);

      function _class12(node) {
        var _this8;

        _classCallCheck(this, _class12);

        _this8 = _possibleConstructorReturn(this, _getPrototypeOf(_class12).call(this, node));
        _this8.points = svg.CreatePath(_this8.attribute('points').value);
        return _this8;
      }

      _createClass(_class12, [{
        key: "path",
        value: function path(ctx) {
          var _this$points$ = this.points[0],
              x = _this$points$.x,
              y = _this$points$.y;
          var bb = new svg.BoundingBox(x, y);

          if (!isNullish(ctx)) {
            ctx.beginPath();
            ctx.moveTo(x, y);
          }

          for (var i = 1; i < this.points.length; i++) {
            var _this$points$i = this.points[i],
                _x = _this$points$i.x,
                _y = _this$points$i.y;
            bb.addPoint(_x, _y);
            if (!isNullish(ctx)) ctx.lineTo(_x, _y);
          }

          return bb;
        }
      }, {
        key: "getMarkers",
        value: function getMarkers() {
          var markers = [];

          for (var i = 0; i < this.points.length - 1; i++) {
            markers.push([this.points[i], this.points[i].angleTo(this.points[i + 1])]);
          }

          markers.push([this.points[this.points.length - 1], markers[markers.length - 1][1]]);
          return markers;
        }
      }]);

      return _class12;
    }(svg.Element.PathElementBase); // polygon element


    svg.Element.polygon =
    /*#__PURE__*/
    function (_svg$Element$polyline) {
      _inherits(_class13, _svg$Element$polyline);

      function _class13() {
        _classCallCheck(this, _class13);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class13).apply(this, arguments));
      }

      _createClass(_class13, [{
        key: "path",
        value: function path(ctx) {
          var bb = _get(_getPrototypeOf(_class13.prototype), "path", this).call(this, ctx);

          if (!isNullish(ctx)) {
            ctx.lineTo(this.points[0].x, this.points[0].y);
            ctx.closePath();
          }

          return bb;
        }
      }]);

      return _class13;
    }(svg.Element.polyline); // path element


    svg.Element.path =
    /*#__PURE__*/
    function (_svg$Element$PathElem6) {
      _inherits(_class14, _svg$Element$PathElem6);

      function _class14(node) {
        var _this9;

        _classCallCheck(this, _class14);

        _this9 = _possibleConstructorReturn(this, _getPrototypeOf(_class14).call(this, node));

        var d = _this9.attribute('d').value // TODO: convert to real lexer based on https://www.w3.org/TR/SVG11/paths.html#PathDataBNF
        .replace(/,/gm, ' ') // get rid of all commas
        .replace(/([MmZzLlHhVvCcSsQqTtAa])([MmZzLlHhVvCcSsQqTtAa])/gm, '$1 $2') // separate commands from commands
        .replace(/([MmZzLlHhVvCcSsQqTtAa])([MmZzLlHhVvCcSsQqTtAa])/gm, '$1 $2') // separate commands from commands
        .replace(/([MmZzLlHhVvCcSsQqTtAa])([^\s])/gm, '$1 $2') // separate commands from points
        .replace(/([^\s])([MmZzLlHhVvCcSsQqTtAa])/gm, '$1 $2') // separate commands from points
        .replace(/(\d)([+-])/gm, '$1 $2') // separate digits when no comma
        .replace(/(\.\d*)(\.)/gm, '$1 $2') // separate digits when no comma
        .replace(/([Aa](\s+\d+)(\s+\d+)(\s+\d+))\s+([01])\s*([01])/gm, '$1 $5 $6 '); // shorthand elliptical arc path syntax


        d = svg.compressSpaces(d); // compress multiple spaces

        d = svg.trim(d);
        _this9.PathParser = {
          tokens: d.split(' '),
          reset: function reset() {
            this.i = -1;
            this.command = '';
            this.previousCommand = '';
            this.start = new svg.Point(0, 0);
            this.control = new svg.Point(0, 0);
            this.current = new svg.Point(0, 0);
            this.points = [];
            this.angles = [];
          },
          isEnd: function isEnd() {
            return this.i >= this.tokens.length - 1;
          },
          isCommandOrEnd: function isCommandOrEnd() {
            if (this.isEnd()) return true;
            return !isNullish(this.tokens[this.i + 1].match(/^[A-Za-z]$/));
          },
          isRelativeCommand: function isRelativeCommand() {
            switch (this.command) {
              case 'm':
              case 'l':
              case 'h':
              case 'v':
              case 'c':
              case 's':
              case 'q':
              case 't':
              case 'a':
              case 'z':
                return true;
            }

            return false;
          },
          getToken: function getToken() {
            this.i++;
            return this.tokens[this.i];
          },
          getScalar: function getScalar() {
            return parseFloat(this.getToken());
          },
          nextCommand: function nextCommand() {
            this.previousCommand = this.command;
            this.command = this.getToken();
          },
          getPoint: function getPoint() {
            var p = new svg.Point(this.getScalar(), this.getScalar());
            return this.makeAbsolute(p);
          },
          getAsControlPoint: function getAsControlPoint() {
            var p = this.getPoint();
            this.control = p;
            return p;
          },
          getAsCurrentPoint: function getAsCurrentPoint() {
            var p = this.getPoint();
            this.current = p;
            return p;
          },
          getReflectedControlPoint: function getReflectedControlPoint() {
            if (this.previousCommand.toLowerCase() !== 'c' && this.previousCommand.toLowerCase() !== 's' && this.previousCommand.toLowerCase() !== 'q' && this.previousCommand.toLowerCase() !== 't') {
              return this.current;
            } // reflect point


            var p = new svg.Point(2 * this.current.x - this.control.x, 2 * this.current.y - this.control.y);
            return p;
          },
          makeAbsolute: function makeAbsolute(p) {
            if (this.isRelativeCommand()) {
              p.x += this.current.x;
              p.y += this.current.y;
            }

            return p;
          },
          addMarker: function addMarker(p, from, priorTo) {
            // if the last angle isn't filled in because we didn't have this point yet ...
            if (!isNullish(priorTo) && this.angles.length > 0 && isNullish(this.angles[this.angles.length - 1])) {
              this.angles[this.angles.length - 1] = this.points[this.points.length - 1].angleTo(priorTo);
            }

            this.addMarkerAngle(p, isNullish(from) ? null : from.angleTo(p));
          },
          addMarkerAngle: function addMarkerAngle(p, a) {
            this.points.push(p);
            this.angles.push(a);
          },
          getMarkerPoints: function getMarkerPoints() {
            return this.points;
          },
          getMarkerAngles: function getMarkerAngles() {
            for (var i = 0; i < this.angles.length; i++) {
              if (isNullish(this.angles[i])) {
                for (var j = i + 1; j < this.angles.length; j++) {
                  if (!isNullish(this.angles[j])) {
                    this.angles[i] = this.angles[j];
                    break;
                  }
                }
              }
            }

            return this.angles;
          }
        };
        return _this9;
      }

      _createClass(_class14, [{
        key: "path",
        value: function path(ctx) {
          var pp = this.PathParser;
          pp.reset();
          var bb = new svg.BoundingBox();
          if (!isNullish(ctx)) ctx.beginPath();

          while (!pp.isEnd()) {
            pp.nextCommand();

            switch (pp.command) {
              case 'M':
              case 'm':
                {
                  var p = pp.getAsCurrentPoint();
                  pp.addMarker(p);
                  bb.addPoint(p.x, p.y);
                  if (!isNullish(ctx)) ctx.moveTo(p.x, p.y);
                  pp.start = pp.current;

                  while (!pp.isCommandOrEnd()) {
                    var _p = pp.getAsCurrentPoint();

                    pp.addMarker(_p, pp.start);
                    bb.addPoint(_p.x, _p.y);
                    if (!isNullish(ctx)) ctx.lineTo(_p.x, _p.y);
                  }

                  break;
                }

              case 'L':
              case 'l':
                while (!pp.isCommandOrEnd()) {
                  var c = pp.current;

                  var _p2 = pp.getAsCurrentPoint();

                  pp.addMarker(_p2, c);
                  bb.addPoint(_p2.x, _p2.y);
                  if (!isNullish(ctx)) ctx.lineTo(_p2.x, _p2.y);
                }

                break;

              case 'H':
              case 'h':
                while (!pp.isCommandOrEnd()) {
                  var newP = new svg.Point((pp.isRelativeCommand() ? pp.current.x : 0) + pp.getScalar(), pp.current.y);
                  pp.addMarker(newP, pp.current);
                  pp.current = newP;
                  bb.addPoint(pp.current.x, pp.current.y);
                  if (!isNullish(ctx)) ctx.lineTo(pp.current.x, pp.current.y);
                }

                break;

              case 'V':
              case 'v':
                while (!pp.isCommandOrEnd()) {
                  var _newP = new svg.Point(pp.current.x, (pp.isRelativeCommand() ? pp.current.y : 0) + pp.getScalar());

                  pp.addMarker(_newP, pp.current);
                  pp.current = _newP;
                  bb.addPoint(pp.current.x, pp.current.y);
                  if (!isNullish(ctx)) ctx.lineTo(pp.current.x, pp.current.y);
                }

                break;

              case 'C':
              case 'c':
                while (!pp.isCommandOrEnd()) {
                  var curr = pp.current;
                  var p1 = pp.getPoint();
                  var cntrl = pp.getAsControlPoint();
                  var cp = pp.getAsCurrentPoint();
                  pp.addMarker(cp, cntrl, p1);
                  bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
                  if (!isNullish(ctx)) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
                }

                break;

              case 'S':
              case 's':
                while (!pp.isCommandOrEnd()) {
                  var _curr = pp.current;

                  var _p3 = pp.getReflectedControlPoint();

                  var _cntrl = pp.getAsControlPoint();

                  var _cp = pp.getAsCurrentPoint();

                  pp.addMarker(_cp, _cntrl, _p3);
                  bb.addBezierCurve(_curr.x, _curr.y, _p3.x, _p3.y, _cntrl.x, _cntrl.y, _cp.x, _cp.y);
                  if (!isNullish(ctx)) ctx.bezierCurveTo(_p3.x, _p3.y, _cntrl.x, _cntrl.y, _cp.x, _cp.y);
                }

                break;

              case 'Q':
              case 'q':
                while (!pp.isCommandOrEnd()) {
                  var _curr2 = pp.current;

                  var _cntrl2 = pp.getAsControlPoint();

                  var _cp2 = pp.getAsCurrentPoint();

                  pp.addMarker(_cp2, _cntrl2, _cntrl2);
                  bb.addQuadraticCurve(_curr2.x, _curr2.y, _cntrl2.x, _cntrl2.y, _cp2.x, _cp2.y);
                  if (!isNullish(ctx)) ctx.quadraticCurveTo(_cntrl2.x, _cntrl2.y, _cp2.x, _cp2.y);
                }

                break;

              case 'T':
              case 't':
                while (!pp.isCommandOrEnd()) {
                  var _curr3 = pp.current;

                  var _cntrl3 = pp.getReflectedControlPoint();

                  pp.control = _cntrl3;

                  var _cp3 = pp.getAsCurrentPoint();

                  pp.addMarker(_cp3, _cntrl3, _cntrl3);
                  bb.addQuadraticCurve(_curr3.x, _curr3.y, _cntrl3.x, _cntrl3.y, _cp3.x, _cp3.y);
                  if (!isNullish(ctx)) ctx.quadraticCurveTo(_cntrl3.x, _cntrl3.y, _cp3.x, _cp3.y);
                }

                break;

              case 'A':
              case 'a':
                var _loop2 = function _loop2() {
                  var curr = pp.current;
                  var rx = pp.getScalar();
                  var ry = pp.getScalar();
                  var xAxisRotation = pp.getScalar() * (Math.PI / 180.0);
                  var largeArcFlag = pp.getScalar();
                  var sweepFlag = pp.getScalar();
                  var cp = pp.getAsCurrentPoint(); // Conversion from endpoint to center parameterization
                  // https://www.w3.org/TR/SVG11/implnote.html#ArcConversionEndpointToCenter
                  // x1', y1'

                  var currp = new svg.Point(Math.cos(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.sin(xAxisRotation) * (curr.y - cp.y) / 2.0, -Math.sin(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.cos(xAxisRotation) * (curr.y - cp.y) / 2.0); // adjust radii

                  var l = Math.pow(currp.x, 2) / Math.pow(rx, 2) + Math.pow(currp.y, 2) / Math.pow(ry, 2);

                  if (l > 1) {
                    rx *= Math.sqrt(l);
                    ry *= Math.sqrt(l);
                  } // cx', cy'


                  var s = (largeArcFlag === sweepFlag ? -1 : 1) * Math.sqrt((Math.pow(rx, 2) * Math.pow(ry, 2) - Math.pow(rx, 2) * Math.pow(currp.y, 2) - Math.pow(ry, 2) * Math.pow(currp.x, 2)) / (Math.pow(rx, 2) * Math.pow(currp.y, 2) + Math.pow(ry, 2) * Math.pow(currp.x, 2)));
                  if (isNaN(s)) s = 0;
                  var cpp = new svg.Point(s * rx * currp.y / ry, s * -ry * currp.x / rx); // cx, cy

                  var centp = new svg.Point((curr.x + cp.x) / 2.0 + Math.cos(xAxisRotation) * cpp.x - Math.sin(xAxisRotation) * cpp.y, (curr.y + cp.y) / 2.0 + Math.sin(xAxisRotation) * cpp.x + Math.cos(xAxisRotation) * cpp.y); // vector magnitude

                  var m = function m(v) {
                    return Math.sqrt(Math.pow(v[0], 2) + Math.pow(v[1], 2));
                  }; // ratio between two vectors


                  var r = function r(u, v) {
                    return (u[0] * v[0] + u[1] * v[1]) / (m(u) * m(v));
                  }; // angle between two vectors


                  var a = function a(u, v) {
                    return (u[0] * v[1] < u[1] * v[0] ? -1 : 1) * Math.acos(r(u, v));
                  }; // initial angle


                  var a1 = a([1, 0], [(currp.x - cpp.x) / rx, (currp.y - cpp.y) / ry]); // angle delta

                  var u = [(currp.x - cpp.x) / rx, (currp.y - cpp.y) / ry];
                  var v = [(-currp.x - cpp.x) / rx, (-currp.y - cpp.y) / ry];
                  var ad = a(u, v);
                  if (r(u, v) <= -1) ad = Math.PI;
                  if (r(u, v) >= 1) ad = 0; // for markers

                  var dir = 1 - sweepFlag ? 1.0 : -1.0;
                  var ah = a1 + dir * (ad / 2.0);
                  var halfWay = new svg.Point(centp.x + rx * Math.cos(ah), centp.y + ry * Math.sin(ah));
                  pp.addMarkerAngle(halfWay, ah - dir * Math.PI / 2);
                  pp.addMarkerAngle(cp, ah - dir * Math.PI);
                  bb.addPoint(cp.x, cp.y); // TODO: this is too naive, make it better

                  if (!isNullish(ctx)) {
                    var _r = rx > ry ? rx : ry;

                    var sx = rx > ry ? 1 : rx / ry;
                    var sy = rx > ry ? ry / rx : 1;
                    ctx.translate(centp.x, centp.y);
                    ctx.rotate(xAxisRotation);
                    ctx.scale(sx, sy);
                    ctx.arc(0, 0, _r, a1, a1 + ad, 1 - sweepFlag);
                    ctx.scale(1 / sx, 1 / sy);
                    ctx.rotate(-xAxisRotation);
                    ctx.translate(-centp.x, -centp.y);
                  }
                };

                while (!pp.isCommandOrEnd()) {
                  _loop2();
                }

                break;

              case 'Z':
              case 'z':
                if (!isNullish(ctx)) ctx.closePath();
                pp.current = pp.start;
            }
          }

          return bb;
        }
      }, {
        key: "getMarkers",
        value: function getMarkers() {
          var points = this.PathParser.getMarkerPoints();
          var angles = this.PathParser.getMarkerAngles();
          var markers = points.map(function (point, i) {
            return [point, angles[i]];
          });
          return markers;
        }
      }]);

      return _class14;
    }(svg.Element.PathElementBase); // pattern element


    svg.Element.pattern =
    /*#__PURE__*/
    function (_svg$Element$ElementB2) {
      _inherits(_class15, _svg$Element$ElementB2);

      function _class15() {
        _classCallCheck(this, _class15);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class15).apply(this, arguments));
      }

      _createClass(_class15, [{
        key: "createPattern",
        value: function createPattern(ctx, element) {
          var width = this.attribute('width').toPixels('x', true);
          var height = this.attribute('height').toPixels('y', true); // render me using a temporary svg element

          var tempSvg = new svg.Element.svg();
          tempSvg.attributes.viewBox = new svg.Property('viewBox', this.attribute('viewBox').value);
          tempSvg.attributes.width = new svg.Property('width', width + 'px');
          tempSvg.attributes.height = new svg.Property('height', height + 'px');
          tempSvg.attributes.transform = new svg.Property('transform', this.attribute('patternTransform').value);
          tempSvg.children = this.children;
          var c = document.createElement('canvas');
          c.width = width;
          c.height = height;
          var cctx = c.getContext('2d');

          if (this.attribute('x').hasValue() && this.attribute('y').hasValue()) {
            cctx.translate(this.attribute('x').toPixels('x', true), this.attribute('y').toPixels('y', true));
          } // render 3x3 grid so when we transform there's no white space on edges


          for (var x = -1; x <= 1; x++) {
            for (var y = -1; y <= 1; y++) {
              cctx.save();
              cctx.translate(x * c.width, y * c.height);
              tempSvg.render(cctx);
              cctx.restore();
            }
          }

          var pattern = ctx.createPattern(c, 'repeat');
          return pattern;
        }
      }]);

      return _class15;
    }(svg.Element.ElementBase); // marker element


    svg.Element.marker =
    /*#__PURE__*/
    function (_svg$Element$ElementB3) {
      _inherits(_class16, _svg$Element$ElementB3);

      function _class16() {
        _classCallCheck(this, _class16);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class16).apply(this, arguments));
      }

      _createClass(_class16, [{
        key: "render",
        value: function render(ctx, point, angle) {
          ctx.translate(point.x, point.y);
          if (this.attribute('orient').valueOrDefault('auto') === 'auto') ctx.rotate(angle);
          if (this.attribute('markerUnits').valueOrDefault('strokeWidth') === 'strokeWidth') ctx.scale(ctx.lineWidth, ctx.lineWidth);
          ctx.save(); // render me using a temporary svg element

          var tempSvg = new svg.Element.svg();
          tempSvg.attributes.viewBox = new svg.Property('viewBox', this.attribute('viewBox').value);
          tempSvg.attributes.refX = new svg.Property('refX', this.attribute('refX').value);
          tempSvg.attributes.refY = new svg.Property('refY', this.attribute('refY').value);
          tempSvg.attributes.width = new svg.Property('width', this.attribute('markerWidth').value);
          tempSvg.attributes.height = new svg.Property('height', this.attribute('markerHeight').value);
          tempSvg.attributes.fill = new svg.Property('fill', this.attribute('fill').valueOrDefault('black'));
          tempSvg.attributes.stroke = new svg.Property('stroke', this.attribute('stroke').valueOrDefault('none'));
          tempSvg.children = this.children;
          tempSvg.render(ctx);
          ctx.restore();
          if (this.attribute('markerUnits').valueOrDefault('strokeWidth') === 'strokeWidth') ctx.scale(1 / ctx.lineWidth, 1 / ctx.lineWidth);
          if (this.attribute('orient').valueOrDefault('auto') === 'auto') ctx.rotate(-angle);
          ctx.translate(-point.x, -point.y);
        }
      }]);

      return _class16;
    }(svg.Element.ElementBase); // definitions element


    svg.Element.defs =
    /*#__PURE__*/
    function (_svg$Element$ElementB4) {
      _inherits(_class17, _svg$Element$ElementB4);

      function _class17() {
        _classCallCheck(this, _class17);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class17).apply(this, arguments));
      }

      _createClass(_class17, [{
        key: "render",
        value: function render(ctx) {// NOOP
        }
      }]);

      return _class17;
    }(svg.Element.ElementBase); // base for gradients


    svg.Element.GradientBase =
    /*#__PURE__*/
    function (_svg$Element$ElementB5) {
      _inherits(_class18, _svg$Element$ElementB5);

      function _class18(node) {
        var _this10;

        _classCallCheck(this, _class18);

        _this10 = _possibleConstructorReturn(this, _getPrototypeOf(_class18).call(this, node));
        _this10.gradientUnits = _this10.attribute('gradientUnits').valueOrDefault('objectBoundingBox');
        _this10.stops = [];

        _this10.children.forEach(function (child) {
          if (child.type === 'stop') {
            _this10.stops.push(child);
          }
        });

        return _this10;
      }

      _createClass(_class18, [{
        key: "getGradient",
        value: function getGradient() {// OVERRIDE ME!
        }
      }, {
        key: "createGradient",
        value: function createGradient(ctx, element, parentOpacityProp) {
          var stopsContainer = this.getHrefAttribute().hasValue() ? this.getHrefAttribute().getDefinition() : this;

          var addParentOpacity = function addParentOpacity(color) {
            if (parentOpacityProp.hasValue()) {
              var p = new svg.Property('color', color);
              return p.addOpacity(parentOpacityProp).value;
            }

            return color;
          };

          var g = this.getGradient(ctx, element);
          if (isNullish(g)) return addParentOpacity(stopsContainer.stops[stopsContainer.stops.length - 1].color);
          stopsContainer.stops.forEach(function (_ref10) {
            var offset = _ref10.offset,
                color = _ref10.color;
            g.addColorStop(offset, addParentOpacity(color));
          });

          if (this.attribute('gradientTransform').hasValue()) {
            // render as transformed pattern on temporary canvas
            var rootView = svg.ViewPort.viewPorts[0];
            var rect = new svg.Element.rect();
            rect.attributes.x = new svg.Property('x', -svg.MAX_VIRTUAL_PIXELS / 3.0);
            rect.attributes.y = new svg.Property('y', -svg.MAX_VIRTUAL_PIXELS / 3.0);
            rect.attributes.width = new svg.Property('width', svg.MAX_VIRTUAL_PIXELS);
            rect.attributes.height = new svg.Property('height', svg.MAX_VIRTUAL_PIXELS);
            var group = new svg.Element.g();
            group.attributes.transform = new svg.Property('transform', this.attribute('gradientTransform').value);
            group.children = [rect];
            var tempSvg = new svg.Element.svg();
            tempSvg.attributes.x = new svg.Property('x', 0);
            tempSvg.attributes.y = new svg.Property('y', 0);
            tempSvg.attributes.width = new svg.Property('width', rootView.width);
            tempSvg.attributes.height = new svg.Property('height', rootView.height);
            tempSvg.children = [group];
            var c = document.createElement('canvas');
            c.width = rootView.width;
            c.height = rootView.height;
            var tempCtx = c.getContext('2d');
            tempCtx.fillStyle = g;
            tempSvg.render(tempCtx);
            return tempCtx.createPattern(c, 'no-repeat');
          }

          return g;
        }
      }]);

      return _class18;
    }(svg.Element.ElementBase); // linear gradient element


    svg.Element.linearGradient =
    /*#__PURE__*/
    function (_svg$Element$Gradient) {
      _inherits(_class19, _svg$Element$Gradient);

      function _class19() {
        _classCallCheck(this, _class19);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class19).apply(this, arguments));
      }

      _createClass(_class19, [{
        key: "getGradient",
        value: function getGradient(ctx, element) {
          var useBB = this.gradientUnits === 'objectBoundingBox' && element.getBoundingBox;
          var bb = useBB ? element.getBoundingBox() : null;

          if (!this.attribute('x1').hasValue() && !this.attribute('y1').hasValue() && !this.attribute('x2').hasValue() && !this.attribute('y2').hasValue()) {
            this.attribute('x1', true).value = 0;
            this.attribute('y1', true).value = 0;
            this.attribute('x2', true).value = 1;
            this.attribute('y2', true).value = 0;
          }

          var x1 = useBB ? bb.x() + bb.width() * this.attribute('x1').numValue() : this.attribute('x1').toPixels('x');
          var y1 = useBB ? bb.y() + bb.height() * this.attribute('y1').numValue() : this.attribute('y1').toPixels('y');
          var x2 = useBB ? bb.x() + bb.width() * this.attribute('x2').numValue() : this.attribute('x2').toPixels('x');
          var y2 = useBB ? bb.y() + bb.height() * this.attribute('y2').numValue() : this.attribute('y2').toPixels('y');
          if (x1 === x2 && y1 === y2) return null;
          return ctx.createLinearGradient(x1, y1, x2, y2);
        }
      }]);

      return _class19;
    }(svg.Element.GradientBase); // radial gradient element


    svg.Element.radialGradient =
    /*#__PURE__*/
    function (_svg$Element$Gradient2) {
      _inherits(_class20, _svg$Element$Gradient2);

      function _class20() {
        _classCallCheck(this, _class20);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class20).apply(this, arguments));
      }

      _createClass(_class20, [{
        key: "getGradient",
        value: function getGradient(ctx, element) {
          var useBB = this.gradientUnits === 'objectBoundingBox' && element.getBoundingBox;
          var bb = useBB ? element.getBoundingBox() : null;
          if (!this.attribute('cx').hasValue()) this.attribute('cx', true).value = '50%';
          if (!this.attribute('cy').hasValue()) this.attribute('cy', true).value = '50%';
          if (!this.attribute('r').hasValue()) this.attribute('r', true).value = '50%';
          var cx = useBB ? bb.x() + bb.width() * this.attribute('cx').numValue() : this.attribute('cx').toPixels('x');
          var cy = useBB ? bb.y() + bb.height() * this.attribute('cy').numValue() : this.attribute('cy').toPixels('y');
          var fx = cx;
          var fy = cy;

          if (this.attribute('fx').hasValue()) {
            fx = useBB ? bb.x() + bb.width() * this.attribute('fx').numValue() : this.attribute('fx').toPixels('x');
          }

          if (this.attribute('fy').hasValue()) {
            fy = useBB ? bb.y() + bb.height() * this.attribute('fy').numValue() : this.attribute('fy').toPixels('y');
          }

          var r = useBB ? (bb.width() + bb.height()) / 2.0 * this.attribute('r').numValue() : this.attribute('r').toPixels();
          return ctx.createRadialGradient(fx, fy, 0, cx, cy, r);
        }
      }]);

      return _class20;
    }(svg.Element.GradientBase); // gradient stop element


    svg.Element.stop =
    /*#__PURE__*/
    function (_svg$Element$ElementB6) {
      _inherits(_class21, _svg$Element$ElementB6);

      function _class21(node) {
        var _this11;

        _classCallCheck(this, _class21);

        _this11 = _possibleConstructorReturn(this, _getPrototypeOf(_class21).call(this, node));
        _this11.offset = _this11.attribute('offset').numValue();
        if (_this11.offset < 0) _this11.offset = 0;
        if (_this11.offset > 1) _this11.offset = 1;

        var stopColor = _this11.style('stop-color');

        if (_this11.style('stop-opacity').hasValue()) {
          stopColor = stopColor.addOpacity(_this11.style('stop-opacity'));
        }

        _this11.color = stopColor.value;
        return _this11;
      }

      return _class21;
    }(svg.Element.ElementBase); // animation base element


    svg.Element.AnimateBase =
    /*#__PURE__*/
    function (_svg$Element$ElementB7) {
      _inherits(_class22, _svg$Element$ElementB7);

      function _class22(node) {
        var _this12;

        _classCallCheck(this, _class22);

        _this12 = _possibleConstructorReturn(this, _getPrototypeOf(_class22).call(this, node));
        svg.Animations.push(_assertThisInitialized(_assertThisInitialized(_this12)));
        _this12.duration = 0.0;
        _this12.begin = _this12.attribute('begin').toMilliseconds();
        _this12.maxDuration = _this12.begin + _this12.attribute('dur').toMilliseconds();
        _this12.initialValue = null;
        _this12.initialUnits = '';
        _this12.removed = false;
        _this12.from = _this12.attribute('from');
        _this12.to = _this12.attribute('to');
        _this12.values = _this12.attribute('values');
        if (_this12.values.hasValue()) _this12.values.value = _this12.values.value.split(';');
        return _this12;
      }

      _createClass(_class22, [{
        key: "getProperty",
        value: function getProperty() {
          var attributeType = this.attribute('attributeType').value;
          var attributeName = this.attribute('attributeName').value;

          if (attributeType === 'CSS') {
            return this.parent.style(attributeName, true);
          }

          return this.parent.attribute(attributeName, true);
        }
      }, {
        key: "calcValue",
        value: function calcValue() {
          // OVERRIDE ME!
          return '';
        }
      }, {
        key: "update",
        value: function update(delta) {
          // set initial value
          if (isNullish(this.initialValue)) {
            this.initialValue = this.getProperty().value;
            this.initialUnits = this.getProperty().getUnits();
          } // if we're past the end time


          if (this.duration > this.maxDuration) {
            // loop for indefinitely repeating animations
            if (this.attribute('repeatCount').value === 'indefinite' || this.attribute('repeatDur').value === 'indefinite') {
              this.duration = 0.0;
            } else if (this.attribute('fill').valueOrDefault('remove') === 'freeze' && !this.frozen) {
              this.frozen = true;
              this.parent.animationFrozen = true;
              this.parent.animationFrozenValue = this.getProperty().value;
            } else if (this.attribute('fill').valueOrDefault('remove') === 'remove' && !this.removed) {
              this.removed = true;
              this.getProperty().value = this.parent.animationFrozen ? this.parent.animationFrozenValue : this.initialValue;
              return true;
            }

            return false;
          }

          this.duration = this.duration + delta; // if we're past the begin time

          var updated = false;

          if (this.begin < this.duration) {
            var newValue = this.calcValue(); // tween

            if (this.attribute('type').hasValue()) {
              // for transform, etc.
              var type = this.attribute('type').value;
              newValue = type + '(' + newValue + ')';
            }

            this.getProperty().value = newValue;
            updated = true;
          }

          return updated;
        } // fraction of duration we've covered

      }, {
        key: "progress",
        value: function progress() {
          var ret = {
            progress: (this.duration - this.begin) / (this.maxDuration - this.begin)
          };

          if (this.values.hasValue()) {
            var p = ret.progress * (this.values.value.length - 1);
            var lb = Math.floor(p),
                ub = Math.ceil(p);
            ret.from = new svg.Property('from', parseFloat(this.values.value[lb]));
            ret.to = new svg.Property('to', parseFloat(this.values.value[ub]));
            ret.progress = (p - lb) / (ub - lb);
          } else {
            ret.from = this.from;
            ret.to = this.to;
          }

          return ret;
        }
      }]);

      return _class22;
    }(svg.Element.ElementBase); // animate element


    svg.Element.animate =
    /*#__PURE__*/
    function (_svg$Element$AnimateB) {
      _inherits(_class23, _svg$Element$AnimateB);

      function _class23() {
        _classCallCheck(this, _class23);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class23).apply(this, arguments));
      }

      _createClass(_class23, [{
        key: "calcValue",
        value: function calcValue() {
          var p = this.progress(); // tween value linearly

          var newValue = p.from.numValue() + (p.to.numValue() - p.from.numValue()) * p.progress;
          return newValue + this.initialUnits;
        }
      }]);

      return _class23;
    }(svg.Element.AnimateBase); // animate color element


    svg.Element.animateColor =
    /*#__PURE__*/
    function (_svg$Element$AnimateB2) {
      _inherits(_class24, _svg$Element$AnimateB2);

      function _class24() {
        _classCallCheck(this, _class24);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class24).apply(this, arguments));
      }

      _createClass(_class24, [{
        key: "calcValue",
        value: function calcValue() {
          var p = this.progress();
          var from = new RGBColor(p.from.value);
          var to = new RGBColor(p.to.value);

          if (from.ok && to.ok) {
            // tween color linearly
            var r = from.r + (to.r - from.r) * p.progress;
            var g = from.g + (to.g - from.g) * p.progress;
            var b = from.b + (to.b - from.b) * p.progress;
            return 'rgb(' + parseInt(r) + ',' + parseInt(g) + ',' + parseInt(b) + ')';
          }

          return this.attribute('from').value;
        }
      }]);

      return _class24;
    }(svg.Element.AnimateBase); // animate transform element


    svg.Element.animateTransform =
    /*#__PURE__*/
    function (_svg$Element$animate) {
      _inherits(_class25, _svg$Element$animate);

      function _class25() {
        _classCallCheck(this, _class25);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class25).apply(this, arguments));
      }

      _createClass(_class25, [{
        key: "calcValue",
        value: function calcValue() {
          var p = this.progress(); // tween value linearly

          var from = svg.ToNumberArray(p.from.value);
          var to = svg.ToNumberArray(p.to.value);
          var newValue = '';
          from.forEach(function (fr, i) {
            newValue += fr + (to[i] - fr) * p.progress + ' ';
          });
          return newValue;
        }
      }]);

      return _class25;
    }(svg.Element.animate); // font element


    svg.Element.font =
    /*#__PURE__*/
    function (_svg$Element$ElementB8) {
      _inherits(_class26, _svg$Element$ElementB8);

      function _class26(node) {
        var _this13;

        _classCallCheck(this, _class26);

        _this13 = _possibleConstructorReturn(this, _getPrototypeOf(_class26).call(this, node));
        _this13.horizAdvX = _this13.attribute('horiz-adv-x').numValue();
        _this13.isRTL = false;
        _this13.isArabic = false;
        _this13.fontFace = null;
        _this13.missingGlyph = null;
        _this13.glyphs = [];

        _this13.children.forEach(function (child) {
          if (child.type === 'font-face') {
            _this13.fontFace = child;

            if (child.style('font-family').hasValue()) {
              svg.Definitions[child.style('font-family').value] = _assertThisInitialized(_assertThisInitialized(_this13));
            }
          } else if (child.type === 'missing-glyph') {
            _this13.missingGlyph = child;
          } else if (child.type === 'glyph') {
            if (child.arabicForm !== '') {
              _this13.isRTL = true;
              _this13.isArabic = true;

              if (typeof _this13.glyphs[child.unicode] === 'undefined') {
                _this13.glyphs[child.unicode] = [];
              }

              _this13.glyphs[child.unicode][child.arabicForm] = child;
            } else {
              _this13.glyphs[child.unicode] = child;
            }
          }
        });

        return _this13;
      }

      return _class26;
    }(svg.Element.ElementBase); // font-face element


    svg.Element.fontface =
    /*#__PURE__*/
    function (_svg$Element$ElementB9) {
      _inherits(_class27, _svg$Element$ElementB9);

      function _class27(node) {
        var _this14;

        _classCallCheck(this, _class27);

        _this14 = _possibleConstructorReturn(this, _getPrototypeOf(_class27).call(this, node));
        _this14.ascent = _this14.attribute('ascent').value;
        _this14.descent = _this14.attribute('descent').value;
        _this14.unitsPerEm = _this14.attribute('units-per-em').numValue();
        return _this14;
      }

      return _class27;
    }(svg.Element.ElementBase); // missing-glyph element


    svg.Element.missingglyph =
    /*#__PURE__*/
    function (_svg$Element$path) {
      _inherits(_class28, _svg$Element$path);

      function _class28(node) {
        var _this15;

        _classCallCheck(this, _class28);

        _this15 = _possibleConstructorReturn(this, _getPrototypeOf(_class28).call(this, node));
        _this15.horizAdvX = 0;
        return _this15;
      }

      return _class28;
    }(svg.Element.path); // glyph element


    svg.Element.glyph =
    /*#__PURE__*/
    function (_svg$Element$path2) {
      _inherits(_class29, _svg$Element$path2);

      function _class29(node) {
        var _this16;

        _classCallCheck(this, _class29);

        _this16 = _possibleConstructorReturn(this, _getPrototypeOf(_class29).call(this, node));
        _this16.horizAdvX = _this16.attribute('horiz-adv-x').numValue();
        _this16.unicode = _this16.attribute('unicode').value;
        _this16.arabicForm = _this16.attribute('arabic-form').value;
        return _this16;
      }

      return _class29;
    }(svg.Element.path); // text element


    svg.Element.text =
    /*#__PURE__*/
    function (_svg$Element$Rendered3) {
      _inherits(_class30, _svg$Element$Rendered3);

      function _class30(node) {
        _classCallCheck(this, _class30);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class30).call(this, node, true));
      }

      _createClass(_class30, [{
        key: "setContext",
        value: function setContext(ctx) {
          _get(_getPrototypeOf(_class30.prototype), "setContext", this).call(this, ctx);

          var textBaseline = this.style('dominant-baseline').toTextBaseline();
          if (isNullish(textBaseline)) textBaseline = this.style('alignment-baseline').toTextBaseline();
          if (!isNullish(textBaseline)) ctx.textBaseline = textBaseline;
        }
      }, {
        key: "getBoundingBox",
        value: function getBoundingBox() {
          var x = this.attribute('x').toPixels('x');
          var y = this.attribute('y').toPixels('y');
          var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
          return new svg.BoundingBox(x, y - fontSize, x + Math.floor(fontSize * 2.0 / 3.0) * this.children[0].getText().length, y);
        }
      }, {
        key: "renderChildren",
        value: function renderChildren(ctx) {
          var _this17 = this;

          this.x = this.attribute('x').toPixels('x');
          this.y = this.attribute('y').toPixels('y');
          this.x += this.getAnchorDelta(ctx, this, 0);
          this.children.forEach(function (child, i) {
            _this17.renderChild(ctx, _this17, i);
          });
        }
      }, {
        key: "getAnchorDelta",
        value: function getAnchorDelta(ctx, parent, startI) {
          var textAnchor = this.style('text-anchor').valueOrDefault('start');

          if (textAnchor !== 'start') {
            var width = 0;

            for (var i = startI; i < parent.children.length; i++) {
              var child = parent.children[i];
              if (i > startI && child.attribute('x').hasValue()) break; // new group

              width += child.measureTextRecursive(ctx);
            }

            return -1 * (textAnchor === 'end' ? width : width / 2.0);
          }

          return 0;
        }
      }, {
        key: "renderChild",
        value: function renderChild(ctx, parent, i) {
          var child = parent.children[i];

          if (child.attribute('x').hasValue()) {
            child.x = child.attribute('x').toPixels('x') + this.getAnchorDelta(ctx, parent, i);
            if (child.attribute('dx').hasValue()) child.x += child.attribute('dx').toPixels('x');
          } else {
            if (this.attribute('dx').hasValue()) this.x += this.attribute('dx').toPixels('x');
            if (child.attribute('dx').hasValue()) this.x += child.attribute('dx').toPixels('x');
            child.x = this.x;
          }

          this.x = child.x + child.measureText(ctx);

          if (child.attribute('y').hasValue()) {
            child.y = child.attribute('y').toPixels('y');
            if (child.attribute('dy').hasValue()) child.y += child.attribute('dy').toPixels('y');
          } else {
            if (this.attribute('dy').hasValue()) this.y += this.attribute('dy').toPixels('y');
            if (child.attribute('dy').hasValue()) this.y += child.attribute('dy').toPixels('y');
            child.y = this.y;
          }

          this.y = child.y;
          child.render(ctx);

          for (var j = 0; j < child.children.length; j++) {
            this.renderChild(ctx, child, j);
          }
        }
      }]);

      return _class30;
    }(svg.Element.RenderedElementBase); // text base


    svg.Element.TextElementBase =
    /*#__PURE__*/
    function (_svg$Element$Rendered4) {
      _inherits(_class31, _svg$Element$Rendered4);

      function _class31() {
        _classCallCheck(this, _class31);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class31).apply(this, arguments));
      }

      _createClass(_class31, [{
        key: "getGlyph",
        value: function getGlyph(font, text, i) {
          var c = text[i];
          var glyph = null;

          if (font.isArabic) {
            var arabicForm = 'isolated';
            if ((i === 0 || text[i - 1] === ' ') && i < text.length - 2 && text[i + 1] !== ' ') arabicForm = 'terminal';
            if (i > 0 && text[i - 1] !== ' ' && i < text.length - 2 && text[i + 1] !== ' ') arabicForm = 'medial';
            if (i > 0 && text[i - 1] !== ' ' && (i === text.length - 1 || text[i + 1] === ' ')) arabicForm = 'initial';

            if (typeof font.glyphs[c] !== 'undefined') {
              glyph = font.glyphs[c][arabicForm];
              if (isNullish(glyph) && font.glyphs[c].type === 'glyph') glyph = font.glyphs[c];
            }
          } else {
            glyph = font.glyphs[c];
          }

          if (isNullish(glyph)) glyph = font.missingGlyph;
          return glyph;
        }
      }, {
        key: "renderChildren",
        value: function renderChildren(ctx) {
          var customFont = this.parent.style('font-family').getDefinition();

          if (!isNullish(customFont)) {
            var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
            var fontStyle = this.parent.style('font-style').valueOrDefault(svg.Font.Parse(svg.ctx.font).fontStyle);
            var text = this.getText();
            if (customFont.isRTL) text = text.split('').reverse().join('');
            var dx = svg.ToNumberArray(this.parent.attribute('dx').value);

            for (var i = 0; i < text.length; i++) {
              var glyph = this.getGlyph(customFont, text, i);
              var scale = fontSize / customFont.fontFace.unitsPerEm;
              ctx.translate(this.x, this.y);
              ctx.scale(scale, -scale);
              var lw = ctx.lineWidth;
              ctx.lineWidth = ctx.lineWidth * customFont.fontFace.unitsPerEm / fontSize;
              if (fontStyle === 'italic') ctx.transform(1, 0, 0.4, 1, 0, 0);
              glyph.render(ctx);
              if (fontStyle === 'italic') ctx.transform(1, 0, -0.4, 1, 0, 0);
              ctx.lineWidth = lw;
              ctx.scale(1 / scale, -1 / scale);
              ctx.translate(-this.x, -this.y);
              this.x += fontSize * (glyph.horizAdvX || customFont.horizAdvX) / customFont.fontFace.unitsPerEm;

              if (typeof dx[i] !== 'undefined' && !isNaN(dx[i])) {
                this.x += dx[i];
              }
            }

            return;
          }

          if (ctx.fillStyle !== '') ctx.fillText(svg.compressSpaces(this.getText()), this.x, this.y);
          if (ctx.strokeStyle !== '') ctx.strokeText(svg.compressSpaces(this.getText()), this.x, this.y);
        }
      }, {
        key: "getText",
        value: function getText() {// OVERRIDE ME
        }
      }, {
        key: "measureTextRecursive",
        value: function measureTextRecursive(ctx) {
          var width = this.measureText(ctx);
          this.children.forEach(function (child) {
            width += child.measureTextRecursive(ctx);
          });
          return width;
        }
      }, {
        key: "measureText",
        value: function measureText(ctx) {
          var customFont = this.parent.style('font-family').getDefinition();

          if (!isNullish(customFont)) {
            var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
            var measure = 0;
            var text = this.getText();
            if (customFont.isRTL) text = text.split('').reverse().join('');
            var dx = svg.ToNumberArray(this.parent.attribute('dx').value);

            for (var i = 0; i < text.length; i++) {
              var glyph = this.getGlyph(customFont, text, i);
              measure += (glyph.horizAdvX || customFont.horizAdvX) * fontSize / customFont.fontFace.unitsPerEm;

              if (typeof dx[i] !== 'undefined' && !isNaN(dx[i])) {
                measure += dx[i];
              }
            }

            return measure;
          }

          var textToMeasure = svg.compressSpaces(this.getText());
          if (!ctx.measureText) return textToMeasure.length * 10;
          ctx.save();
          this.setContext(ctx);

          var _ctx$measureText = ctx.measureText(textToMeasure),
              width = _ctx$measureText.width;

          ctx.restore();
          return width;
        }
      }]);

      return _class31;
    }(svg.Element.RenderedElementBase); // tspan


    svg.Element.tspan =
    /*#__PURE__*/
    function (_svg$Element$TextElem) {
      _inherits(_class32, _svg$Element$TextElem);

      function _class32(node) {
        var _this18;

        _classCallCheck(this, _class32);

        _this18 = _possibleConstructorReturn(this, _getPrototypeOf(_class32).call(this, node, true));
        _this18.text = node.nodeValue || node.text || '';
        return _this18;
      }

      _createClass(_class32, [{
        key: "getText",
        value: function getText() {
          return this.text;
        }
      }]);

      return _class32;
    }(svg.Element.TextElementBase); // tref


    svg.Element.tref =
    /*#__PURE__*/
    function (_svg$Element$TextElem2) {
      _inherits(_class33, _svg$Element$TextElem2);

      function _class33() {
        _classCallCheck(this, _class33);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class33).apply(this, arguments));
      }

      _createClass(_class33, [{
        key: "getText",
        value: function getText() {
          var element = this.getHrefAttribute().getDefinition();
          if (!isNullish(element)) return element.children[0].getText();
          return undefined;
        }
      }]);

      return _class33;
    }(svg.Element.TextElementBase); // a element


    svg.Element.a =
    /*#__PURE__*/
    function (_svg$Element$TextElem3) {
      _inherits(_class34, _svg$Element$TextElem3);

      function _class34(node) {
        var _this19;

        _classCallCheck(this, _class34);

        _this19 = _possibleConstructorReturn(this, _getPrototypeOf(_class34).call(this, node));
        _this19.hasText = true;

        _toConsumableArray(node.childNodes).forEach(function (childNode) {
          if (childNode.nodeType !== 3) {
            _this19.hasText = false;
          }
        }); // this might contain text


        _this19.text = _this19.hasText ? node.childNodes[0].nodeValue : '';
        return _this19;
      }

      _createClass(_class34, [{
        key: "getText",
        value: function getText() {
          return this.text;
        }
      }, {
        key: "renderChildren",
        value: function renderChildren(ctx) {
          if (this.hasText) {
            // render as text element
            _get(_getPrototypeOf(_class34.prototype), "renderChildren", this).call(this, ctx);

            var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);
            svg.Mouse.checkBoundingBox(this, new svg.BoundingBox(this.x, this.y - fontSize.toPixels('y'), this.x + this.measureText(ctx), this.y));
          } else {
            // render as temporary group
            var g = new svg.Element.g();
            g.children = this.children;
            g.parent = this;
            g.render(ctx);
          }
        }
      }, {
        key: "onclick",
        value: function onclick() {
          window.open(this.getHrefAttribute().value);
        }
      }, {
        key: "onmousemove",
        value: function onmousemove() {
          svg.ctx.canvas.style.cursor = 'pointer';
        }
      }]);

      return _class34;
    }(svg.Element.TextElementBase); // image element


    svg.Element.image =
    /*#__PURE__*/
    function (_svg$Element$Rendered5) {
      _inherits(_class35, _svg$Element$Rendered5);

      function _class35(node) {
        var _this20;

        _classCallCheck(this, _class35);

        _this20 = _possibleConstructorReturn(this, _getPrototypeOf(_class35).call(this, node));

        var href = _this20.getHrefAttribute().value;

        if (href === '') {
          return _possibleConstructorReturn(_this20);
        }

        _this20._isSvg = href.match(/\.svg$/);
        svg.Images.push(_assertThisInitialized(_assertThisInitialized(_this20)));
        _this20.loaded = false;

        if (!_this20._isSvg) {
          _this20.img = document.createElement('img');

          if (svg.opts.useCORS === true) {
            _this20.img.crossOrigin = 'Anonymous';
          }

          _this20.img.addEventListener('load', function () {
            _this20.loaded = true;
          });

          _this20.img.addEventListener('error', function () {
            svg.log('ERROR: image "' + href + '" not found');
            _this20.loaded = true;
          });

          _this20.img.src = href;
        } else {
          svg.ajax(href, true).then(function (img) {
            // eslint-disable-line promise/prefer-await-to-then, promise/always-return
            _this20.img = img;
            _this20.loaded = true;
          }).catch(function (err) {
            // eslint-disable-line promise/prefer-await-to-callbacks
            _this20.erred = true;
            console.error('Ajax error for canvg', err); // eslint-disable-line no-console
          });
        }

        return _this20;
      }

      _createClass(_class35, [{
        key: "renderChildren",
        value: function renderChildren(ctx) {
          var x = this.attribute('x').toPixels('x');
          var y = this.attribute('y').toPixels('y');
          var width = this.attribute('width').toPixels('x');
          var height = this.attribute('height').toPixels('y');
          if (width === 0 || height === 0) return;
          ctx.save();

          if (this._isSvg) {
            ctx.drawSvg(this.img, x, y, width, height);
          } else {
            ctx.translate(x, y);
            svg.AspectRatio(ctx, this.attribute('preserveAspectRatio').value, width, this.img.width, height, this.img.height, 0, 0);
            ctx.drawImage(this.img, 0, 0);
          }

          ctx.restore();
        }
      }, {
        key: "getBoundingBox",
        value: function getBoundingBox() {
          var x = this.attribute('x').toPixels('x');
          var y = this.attribute('y').toPixels('y');
          var width = this.attribute('width').toPixels('x');
          var height = this.attribute('height').toPixels('y');
          return new svg.BoundingBox(x, y, x + width, y + height);
        }
      }]);

      return _class35;
    }(svg.Element.RenderedElementBase); // group element


    svg.Element.g =
    /*#__PURE__*/
    function (_svg$Element$Rendered6) {
      _inherits(_class36, _svg$Element$Rendered6);

      function _class36() {
        _classCallCheck(this, _class36);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class36).apply(this, arguments));
      }

      _createClass(_class36, [{
        key: "getBoundingBox",
        value: function getBoundingBox() {
          var bb = new svg.BoundingBox();
          this.children.forEach(function (child) {
            bb.addBoundingBox(child.getBoundingBox());
          });
          return bb;
        }
      }]);

      return _class36;
    }(svg.Element.RenderedElementBase); // symbol element


    svg.Element.symbol =
    /*#__PURE__*/
    function (_svg$Element$Rendered7) {
      _inherits(_class37, _svg$Element$Rendered7);

      function _class37() {
        _classCallCheck(this, _class37);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class37).apply(this, arguments));
      }

      _createClass(_class37, [{
        key: "render",
        value: function render(ctx) {// NO RENDER
        }
      }]);

      return _class37;
    }(svg.Element.RenderedElementBase); // style element


    svg.Element.style =
    /*#__PURE__*/
    function (_svg$Element$ElementB10) {
      _inherits(_class38, _svg$Element$ElementB10);

      function _class38(node) {
        var _this21;

        _classCallCheck(this, _class38);

        _this21 = _possibleConstructorReturn(this, _getPrototypeOf(_class38).call(this, node)); // text, or spaces then CDATA

        var css = '';

        _toConsumableArray(node.childNodes).forEach(function (_ref11) {
          var nodeValue = _ref11.nodeValue;
          css += nodeValue;
        });

        css = css.replace(/(\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\/)|(^[\s]*\/\/.*)/gm, ''); // remove comments

        css = svg.compressSpaces(css); // replace whitespace

        var cssDefs = css.split('}');
        cssDefs.forEach(function (cssDef) {
          if (svg.trim(cssDef) !== '') {
            var _cssDef$split = cssDef.split('{'),
                _cssDef$split2 = _slicedToArray(_cssDef$split, 2),
                cssClasses = _cssDef$split2[0],
                cssProps = _cssDef$split2[1];

            cssClasses = cssClasses.split(',');
            cssProps = cssProps.split(';');
            cssClasses.forEach(function (cssClass) {
              cssClass = svg.trim(cssClass);

              if (cssClass !== '') {
                var props = {};
                cssProps.forEach(function (cssProp) {
                  var prop = cssProp.indexOf(':');
                  var name = cssProp.substr(0, prop);
                  var value = cssProp.substr(prop + 1, cssProp.length - prop);

                  if (!isNullish(name) && !isNullish(value)) {
                    props[svg.trim(name)] = new svg.Property(svg.trim(name), svg.trim(value));
                  }
                });
                svg.Styles[cssClass] = props;

                if (cssClass === '@font-face') {
                  var fontFamily = props['font-family'].value.replace(/"/g, '');
                  var srcs = props.src.value.split(',');
                  srcs.forEach(function (src) {
                    if (src.includes('format("svg")')) {
                      var urlStart = src.indexOf('url');
                      var urlEnd = src.indexOf(')', urlStart);
                      var url = src.substr(urlStart + 5, urlEnd - urlStart - 6); // Can this ajax safely be converted to async?

                      var doc = svg.parseXml(svg.ajax(url));
                      var fonts = doc.getElementsByTagName('font');

                      _toConsumableArray(fonts).forEach(function (font) {
                        font = svg.CreateElement(font);
                        svg.Definitions[fontFamily] = font;
                      });
                    }
                  });
                }
              }
            });
          }
        });
        return _this21;
      }

      return _class38;
    }(svg.Element.ElementBase); // use element


    svg.Element.use =
    /*#__PURE__*/
    function (_svg$Element$Rendered8) {
      _inherits(_class39, _svg$Element$Rendered8);

      function _class39(node) {
        var _this22;

        _classCallCheck(this, _class39);

        _this22 = _possibleConstructorReturn(this, _getPrototypeOf(_class39).call(this, node));
        _this22._el = _this22.getHrefAttribute().getDefinition();
        return _this22;
      }

      _createClass(_class39, [{
        key: "setContext",
        value: function setContext(ctx) {
          _get(_getPrototypeOf(_class39.prototype), "setContext", this).call(this, ctx);

          if (this.attribute('x').hasValue()) ctx.translate(this.attribute('x').toPixels('x'), 0);
          if (this.attribute('y').hasValue()) ctx.translate(0, this.attribute('y').toPixels('y'));
        }
      }, {
        key: "path",
        value: function path(ctx) {
          var element = this._el;
          if (!isNullish(element)) element.path(ctx);
        }
      }, {
        key: "getBoundingBox",
        value: function getBoundingBox() {
          var element = this._el;
          if (!isNullish(element)) return element.getBoundingBox();
          return undefined;
        }
      }, {
        key: "renderChildren",
        value: function renderChildren(ctx) {
          var element = this._el;

          if (!isNullish(element)) {
            var tempSvg = element;

            if (element.type === 'symbol') {
              // render me using a temporary svg element in symbol cases (https://www.w3.org/TR/SVG/struct.html#UseElement)
              tempSvg = new svg.Element.svg();
              tempSvg.type = 'svg';
              tempSvg.attributes.viewBox = new svg.Property('viewBox', element.attribute('viewBox').value);
              tempSvg.attributes.preserveAspectRatio = new svg.Property('preserveAspectRatio', element.attribute('preserveAspectRatio').value);
              tempSvg.attributes.overflow = new svg.Property('overflow', element.attribute('overflow').value);
              tempSvg.children = element.children;
            }

            if (tempSvg.type === 'svg') {
              // if symbol or svg, inherit width/height from me
              if (this.attribute('width').hasValue()) tempSvg.attributes.width = new svg.Property('width', this.attribute('width').value);
              if (this.attribute('height').hasValue()) tempSvg.attributes.height = new svg.Property('height', this.attribute('height').value);
            }

            var oldParent = tempSvg.parent;
            tempSvg.parent = null;
            tempSvg.render(ctx);
            tempSvg.parent = oldParent;
          }
        }
      }]);

      return _class39;
    }(svg.Element.RenderedElementBase); // mask element


    svg.Element.mask =
    /*#__PURE__*/
    function (_svg$Element$ElementB11) {
      _inherits(_class40, _svg$Element$ElementB11);

      function _class40() {
        _classCallCheck(this, _class40);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class40).apply(this, arguments));
      }

      _createClass(_class40, [{
        key: "apply",
        value: function apply(ctx, element) {
          // render as temp svg
          var x = this.attribute('x').toPixels('x');
          var y = this.attribute('y').toPixels('y');
          var width = this.attribute('width').toPixels('x');
          var height = this.attribute('height').toPixels('y');

          if (width === 0 && height === 0) {
            var bb = new svg.BoundingBox();
            this.children.forEach(function (child) {
              bb.addBoundingBox(child.getBoundingBox());
            });
            x = Math.floor(bb.x1);
            y = Math.floor(bb.y1);
            width = Math.floor(bb.width());
            height = Math.floor(bb.height());
          } // temporarily remove mask to avoid recursion


          var mask = element.attribute('mask').value;
          element.attribute('mask').value = '';
          var cMask = document.createElement('canvas');
          cMask.width = x + width;
          cMask.height = y + height;
          var maskCtx = cMask.getContext('2d');
          this.renderChildren(maskCtx);
          var c = document.createElement('canvas');
          c.width = x + width;
          c.height = y + height;
          var tempCtx = c.getContext('2d');
          element.render(tempCtx);
          tempCtx.globalCompositeOperation = 'destination-in';
          tempCtx.fillStyle = maskCtx.createPattern(cMask, 'no-repeat');
          tempCtx.fillRect(0, 0, x + width, y + height);
          ctx.fillStyle = tempCtx.createPattern(c, 'no-repeat');
          ctx.fillRect(0, 0, x + width, y + height); // reassign mask

          element.attribute('mask').value = mask;
        }
      }, {
        key: "render",
        value: function render(ctx) {// NO RENDER
        }
      }]);

      return _class40;
    }(svg.Element.ElementBase); // clip element


    svg.Element.clipPath =
    /*#__PURE__*/
    function (_svg$Element$ElementB12) {
      _inherits(_class41, _svg$Element$ElementB12);

      function _class41() {
        _classCallCheck(this, _class41);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class41).apply(this, arguments));
      }

      _createClass(_class41, [{
        key: "apply",
        value: function apply(ctx) {
          this.children.forEach(function (child) {
            if (typeof child.path !== 'undefined') {
              var transform = null;

              if (child.attribute('transform').hasValue()) {
                transform = new svg.Transform(child.attribute('transform').value);
                transform.apply(ctx);
              }

              child.path(ctx);
              ctx.clip();

              if (transform) {
                transform.unapply(ctx);
              }
            }
          });
        }
      }, {
        key: "render",
        value: function render(ctx) {// NO RENDER
        }
      }]);

      return _class41;
    }(svg.Element.ElementBase); // filters


    svg.Element.filter =
    /*#__PURE__*/
    function (_svg$Element$ElementB13) {
      _inherits(_class42, _svg$Element$ElementB13);

      function _class42() {
        _classCallCheck(this, _class42);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class42).apply(this, arguments));
      }

      _createClass(_class42, [{
        key: "apply",
        value: function apply(ctx, element) {
          // render as temp svg
          var bb = element.getBoundingBox();
          var x = Math.floor(bb.x1);
          var y = Math.floor(bb.y1);
          var width = Math.floor(bb.width());
          var height = Math.floor(bb.height()); // temporarily remove filter to avoid recursion

          var filter = element.style('filter').value;
          element.style('filter').value = '';
          var px = 0,
              py = 0;
          this.children.forEach(function (child) {
            var efd = child.extraFilterDistance || 0;
            px = Math.max(px, efd);
            py = Math.max(py, efd);
          });
          var c = document.createElement('canvas');
          c.width = width + 2 * px;
          c.height = height + 2 * py;
          var tempCtx = c.getContext('2d');
          tempCtx.translate(-x + px, -y + py);
          element.render(tempCtx); // apply filters

          this.children.forEach(function (child) {
            child.apply(tempCtx, 0, 0, width + 2 * px, height + 2 * py);
          }); // render on me

          ctx.drawImage(c, 0, 0, width + 2 * px, height + 2 * py, x - px, y - py, width + 2 * px, height + 2 * py); // reassign filter

          element.style('filter', true).value = filter;
        }
      }, {
        key: "render",
        value: function render(ctx) {// NO RENDER
        }
      }]);

      return _class42;
    }(svg.Element.ElementBase);

    svg.Element.feMorphology =
    /*#__PURE__*/
    function (_svg$Element$ElementB14) {
      _inherits(_class43, _svg$Element$ElementB14);

      function _class43() {
        _classCallCheck(this, _class43);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class43).apply(this, arguments));
      }

      _createClass(_class43, [{
        key: "apply",
        value: function apply(ctx, x, y, width, height) {// TODO: implement
        }
      }]);

      return _class43;
    }(svg.Element.ElementBase);

    svg.Element.feComposite =
    /*#__PURE__*/
    function (_svg$Element$ElementB15) {
      _inherits(_class44, _svg$Element$ElementB15);

      function _class44() {
        _classCallCheck(this, _class44);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class44).apply(this, arguments));
      }

      _createClass(_class44, [{
        key: "apply",
        value: function apply(ctx, x, y, width, height) {// TODO: implement
        }
      }]);

      return _class44;
    }(svg.Element.ElementBase);
    /**
    * @param {Uint8ClampedArray} img
    * @param {Integer} x
    * @param {Integer} y
    * @param {Float} width
    * @param {Float} height
    * @param {Integer} rgba
    * @returns {undefined}
    */


    function imGet(img, x, y, width, height, rgba) {
      return img[y * width * 4 + x * 4 + rgba];
    }
    /**
    * @param {Uint8ClampedArray} img
    * @param {Integer} x
    * @param {Integer} y
    * @param {Float} width
    * @param {Float} height
    * @param {Integer} rgba
    * @param {Float} val
    * @returns {undefined}
    */


    function imSet(img, x, y, width, height, rgba, val) {
      img[y * width * 4 + x * 4 + rgba] = val;
    }

    svg.Element.feColorMatrix =
    /*#__PURE__*/
    function (_svg$Element$ElementB16) {
      _inherits(_class45, _svg$Element$ElementB16);

      function _class45(node) {
        var _this23;

        _classCallCheck(this, _class45);

        _this23 = _possibleConstructorReturn(this, _getPrototypeOf(_class45).call(this, node));
        var matrix = svg.ToNumberArray(_this23.attribute('values').value);

        switch (_this23.attribute('type').valueOrDefault('matrix')) {
          // https://www.w3.org/TR/SVG/filters.html#feColorMatrixElement
          case 'saturate':
            {
              var s = matrix[0];
              matrix = [0.213 + 0.787 * s, 0.715 - 0.715 * s, 0.072 - 0.072 * s, 0, 0, 0.213 - 0.213 * s, 0.715 + 0.285 * s, 0.072 - 0.072 * s, 0, 0, 0.213 - 0.213 * s, 0.715 - 0.715 * s, 0.072 + 0.928 * s, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1];
              break;
            }

          case 'hueRotate':
            {
              var a = matrix[0] * Math.PI / 180.0;

              var c = function c(m1, m2, m3) {
                return m1 + Math.cos(a) * m2 + Math.sin(a) * m3;
              };

              matrix = [c(0.213, 0.787, -0.213), c(0.715, -0.715, -0.715), c(0.072, -0.072, 0.928), 0, 0, c(0.213, -0.213, 0.143), c(0.715, 0.285, 0.140), c(0.072, -0.072, -0.283), 0, 0, c(0.213, -0.213, -0.787), c(0.715, -0.715, 0.715), c(0.072, 0.928, 0.072), 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1];
              break;
            }

          case 'luminanceToAlpha':
            matrix = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0.2125, 0.7154, 0.0721, 0, 0, 0, 0, 0, 0, 1];
            break;
        }

        _this23.matrix = matrix;

        _this23._m = function (i, v) {
          var mi = matrix[i];
          return mi * (mi < 0 ? v - 255 : v);
        };

        return _this23;
      }

      _createClass(_class45, [{
        key: "apply",
        value: function apply(ctx, x, y, width, height) {
          var m = this._m; // assuming x==0 && y==0 for now

          var srcData = ctx.getImageData(0, 0, width, height);

          for (var _y = 0; _y < height; _y++) {
            for (var _x = 0; _x < width; _x++) {
              var r = imGet(srcData.data, _x, _y, width, height, 0);
              var g = imGet(srcData.data, _x, _y, width, height, 1);
              var b = imGet(srcData.data, _x, _y, width, height, 2);
              var a = imGet(srcData.data, _x, _y, width, height, 3);
              imSet(srcData.data, _x, _y, width, height, 0, m(0, r) + m(1, g) + m(2, b) + m(3, a) + m(4, 1));
              imSet(srcData.data, _x, _y, width, height, 1, m(5, r) + m(6, g) + m(7, b) + m(8, a) + m(9, 1));
              imSet(srcData.data, _x, _y, width, height, 2, m(10, r) + m(11, g) + m(12, b) + m(13, a) + m(14, 1));
              imSet(srcData.data, _x, _y, width, height, 3, m(15, r) + m(16, g) + m(17, b) + m(18, a) + m(19, 1));
            }
          }

          ctx.clearRect(0, 0, width, height);
          ctx.putImageData(srcData, 0, 0);
        }
      }]);

      return _class45;
    }(svg.Element.ElementBase);

    svg.Element.feGaussianBlur =
    /*#__PURE__*/
    function (_svg$Element$ElementB17) {
      _inherits(_class46, _svg$Element$ElementB17);

      function _class46(node) {
        var _this24;

        _classCallCheck(this, _class46);

        _this24 = _possibleConstructorReturn(this, _getPrototypeOf(_class46).call(this, node));
        _this24.blurRadius = Math.floor(_this24.attribute('stdDeviation').numValue());
        _this24.extraFilterDistance = _this24.blurRadius;
        return _this24;
      }

      _createClass(_class46, [{
        key: "apply",
        value: function apply(ctx, x, y, width, height) {
          // Todo: This might not be a problem anymore with out `instanceof` fix
          // StackBlur requires canvas be on document
          ctx.canvas.id = svg.UniqueId();
          ctx.canvas.style.display = 'none';
          document.body.append(ctx.canvas);
          processCanvasRGBA(ctx.canvas, x, y, width, height, this.blurRadius);
          ctx.canvas.remove();
        }
      }]);

      return _class46;
    }(svg.Element.ElementBase); // title element, do nothing


    svg.Element.title =
    /*#__PURE__*/
    function (_svg$Element$ElementB18) {
      _inherits(_class47, _svg$Element$ElementB18);

      function _class47(node) {
        _classCallCheck(this, _class47);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class47).call(this));
      }

      return _class47;
    }(svg.Element.ElementBase); // desc element, do nothing


    svg.Element.desc =
    /*#__PURE__*/
    function (_svg$Element$ElementB19) {
      _inherits(_class48, _svg$Element$ElementB19);

      function _class48(node) {
        _classCallCheck(this, _class48);

        return _possibleConstructorReturn(this, _getPrototypeOf(_class48).call(this));
      }

      return _class48;
    }(svg.Element.ElementBase);

    svg.Element.MISSING =
    /*#__PURE__*/
    function (_svg$Element$ElementB20) {
      _inherits(_class49, _svg$Element$ElementB20);

      function _class49(node) {
        var _this25;

        _classCallCheck(this, _class49);

        _this25 = _possibleConstructorReturn(this, _getPrototypeOf(_class49).call(this));
        svg.log('ERROR: Element \'' + node.nodeName + '\' not yet implemented.');
        return _this25;
      }

      return _class49;
    }(svg.Element.ElementBase); // element factory


    svg.CreateElement = function (node) {
      var className = node.nodeName.replace(/^[^:]+:/, '') // remove namespace
      .replace(/-/g, ''); // remove dashes

      var e;

      if (typeof svg.Element[className] !== 'undefined') {
        e = new svg.Element[className](node);
      } else {
        e = new svg.Element.MISSING(node);
      }

      e.type = node.nodeName;
      return e;
    }; // load from url


    svg.load =
    /*#__PURE__*/
    function () {
      var _ref12 = _asyncToGenerator(
      /*#__PURE__*/
      regeneratorRuntime.mark(function _callee(ctx, url) {
        var dom;
        return regeneratorRuntime.wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                _context.next = 2;
                return svg.ajax(url, true);

              case 2:
                dom = _context.sent;
                return _context.abrupt("return", svg.loadXml(ctx, dom));

              case 4:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      return function (_x2, _x3) {
        return _ref12.apply(this, arguments);
      };
    }(); // load from xml


    svg.loadXml = function (ctx, xml) {
      return svg.loadXmlDoc(ctx, svg.parseXml(xml));
    };

    svg.loadXmlDoc = function (ctx, dom) {
      var res;
      svg.init(ctx);

      var mapXY = function mapXY(p) {
        var e = ctx.canvas;

        while (e) {
          p.x -= e.offsetLeft;
          p.y -= e.offsetTop;
          e = e.offsetParent;
        }

        if (window.scrollX) p.x += window.scrollX;
        if (window.scrollY) p.y += window.scrollY;
        return p;
      }; // bind mouse


      if (svg.opts.ignoreMouse !== true) {
        ctx.canvas.addEventListener('click', function (e) {
          var args = !isNullish(e) ? [e.clientX, e.clientY] : [event.clientX, event.clientY]; // eslint-disable-line no-restricted-globals

          var _mapXY = mapXY(_construct(svg.Point, args)),
              x = _mapXY.x,
              y = _mapXY.y;

          svg.Mouse.onclick(x, y);
        });
        ctx.canvas.addEventListener('mousemove', function (e) {
          var args = !isNullish(e) ? [e.clientX, e.clientY] : [event.clientX, event.clientY]; // eslint-disable-line no-restricted-globals

          var _mapXY2 = mapXY(_construct(svg.Point, args)),
              x = _mapXY2.x,
              y = _mapXY2.y;

          svg.Mouse.onmousemove(x, y);
        });
      }

      var e = svg.CreateElement(dom.documentElement);
      e.root = true; // render loop

      var isFirstRender = true;

      var draw = function draw(resolve) {
        svg.ViewPort.Clear();

        if (ctx.canvas.parentNode) {
          svg.ViewPort.SetCurrent(ctx.canvas.parentNode.clientWidth, ctx.canvas.parentNode.clientHeight);
        }

        if (svg.opts.ignoreDimensions !== true) {
          // set canvas size
          if (e.style('width').hasValue()) {
            ctx.canvas.width = e.style('width').toPixels('x');
            ctx.canvas.style.width = ctx.canvas.width + 'px';
          }

          if (e.style('height').hasValue()) {
            ctx.canvas.height = e.style('height').toPixels('y');
            ctx.canvas.style.height = ctx.canvas.height + 'px';
          }
        }

        var cWidth = ctx.canvas.clientWidth || ctx.canvas.width;
        var cHeight = ctx.canvas.clientHeight || ctx.canvas.height;

        if (svg.opts.ignoreDimensions === true && e.style('width').hasValue() && e.style('height').hasValue()) {
          cWidth = e.style('width').toPixels('x');
          cHeight = e.style('height').toPixels('y');
        }

        svg.ViewPort.SetCurrent(cWidth, cHeight);

        if (!isNullish(svg.opts.offsetX)) {
          e.attribute('x', true).value = svg.opts.offsetX;
        }

        if (!isNullish(svg.opts.offsetY)) {
          e.attribute('y', true).value = svg.opts.offsetY;
        }

        if (!isNullish(svg.opts.scaleWidth) || !isNullish(svg.opts.scaleHeight)) {
          var viewBox = svg.ToNumberArray(e.attribute('viewBox').value);
          var xRatio = null,
              yRatio = null;

          if (!isNullish(svg.opts.scaleWidth)) {
            if (e.attribute('width').hasValue()) {
              xRatio = e.attribute('width').toPixels('x') / svg.opts.scaleWidth;
            } else if (!isNaN(viewBox[2])) {
              xRatio = viewBox[2] / svg.opts.scaleWidth;
            }
          }

          if (!isNullish(svg.opts.scaleHeight)) {
            if (e.attribute('height').hasValue()) {
              yRatio = e.attribute('height').toPixels('y') / svg.opts.scaleHeight;
            } else if (!isNaN(viewBox[3])) {
              yRatio = viewBox[3] / svg.opts.scaleHeight;
            }
          }

          if (isNullish(xRatio)) {
            xRatio = yRatio;
          }

          if (isNullish(yRatio)) {
            yRatio = xRatio;
          }

          e.attribute('width', true).value = svg.opts.scaleWidth;
          e.attribute('height', true).value = svg.opts.scaleHeight;
          e.attribute('viewBox', true).value = '0 0 ' + cWidth * xRatio + ' ' + cHeight * yRatio;
          e.attribute('preserveAspectRatio', true).value = 'none';
        } // clear and render


        if (svg.opts.ignoreClear !== true) {
          ctx.clearRect(0, 0, cWidth, cHeight);
        }

        e.render(ctx);

        if (isFirstRender) {
          isFirstRender = false;
          resolve(dom);
        }
      };

      var waitingForImages = true;
      svg.intervalID = setInterval(function () {
        var needUpdate = false;

        if (waitingForImages && svg.ImagesLoaded()) {
          waitingForImages = false;
          needUpdate = true;
        } // need update from mouse events?


        if (svg.opts.ignoreMouse !== true) {
          needUpdate = needUpdate || svg.Mouse.hasEvents();
        } // need update from animations?


        if (svg.opts.ignoreAnimation !== true) {
          svg.Animations.forEach(function (animation) {
            var needAnimationUpdate = animation.update(1000 / svg.FRAMERATE);
            needUpdate = needUpdate || needAnimationUpdate;
          });
        } // need update from redraw?


        if (typeof svg.opts.forceRedraw === 'function') {
          if (svg.opts.forceRedraw() === true) {
            needUpdate = true;
          }
        } // render if needed


        if (needUpdate) {
          draw(res);
          svg.Mouse.runEvents(); // run and clear our events
        }
      }, 1000 / svg.FRAMERATE); // Todo: Replace with an image loading Promise utility?

      return new Promise(function (resolve, reject) {
        // eslint-disable-line promise/avoid-new
        if (svg.ImagesLoaded()) {
          waitingForImages = false;
          draw(resolve);
          return;
        }

        res = resolve;
      });
    };

    svg.stop = function () {
      if (svg.intervalID) {
        clearInterval(svg.intervalID);
      }
    };

    svg.Mouse = {
      events: [],
      hasEvents: function hasEvents() {
        return this.events.length !== 0;
      },
      onclick: function onclick(x, y) {
        this.events.push({
          type: 'onclick',
          x: x,
          y: y,
          run: function run(e) {
            if (e.onclick) e.onclick();
          }
        });
      },
      onmousemove: function onmousemove(x, y) {
        this.events.push({
          type: 'onmousemove',
          x: x,
          y: y,
          run: function run(e) {
            if (e.onmousemove) e.onmousemove();
          }
        });
      },
      eventElements: [],
      checkPath: function checkPath(element, ctx) {
        var _this26 = this;

        this.events.forEach(function (_ref13, i) {
          var x = _ref13.x,
              y = _ref13.y;

          if (ctx.isPointInPath && ctx.isPointInPath(x, y)) {
            _this26.eventElements[i] = element;
          }
        });
      },
      checkBoundingBox: function checkBoundingBox(element, bb) {
        var _this27 = this;

        this.events.forEach(function (_ref14, i) {
          var x = _ref14.x,
              y = _ref14.y;

          if (bb.isPointInBox(x, y)) {
            _this27.eventElements[i] = element;
          }
        });
      },
      runEvents: function runEvents() {
        var _this28 = this;

        svg.ctx.canvas.style.cursor = '';
        this.events.forEach(function (e, i) {
          var element = _this28.eventElements[i];

          while (element) {
            e.run(element);
            element = element.parent;
          }
        }); // done running, clear

        this.events = [];
        this.eventElements = [];
      }
    };
    return svg;
  }

  if (typeof CanvasRenderingContext2D !== 'undefined') {
    CanvasRenderingContext2D.prototype.drawSvg = function (s, dx, dy, dw, dh) {
      canvg(this.canvas, s, {
        ignoreMouse: true,
        ignoreAnimation: true,
        ignoreDimensions: true,
        ignoreClear: true,
        offsetX: dx,
        offsetY: dy,
        scaleWidth: dw,
        scaleHeight: dh
      });
    };
  }

  exports.canvg = canvg;

  return exports;

}({}));