| // Copyright 2006 Google Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| |
| // Known Issues: |
| // |
| // * Patterns only support repeat. |
| // * Radial gradient are not implemented. The VML version of these look very |
| // different from the canvas one. |
| // * Clipping paths are not implemented. |
| // * Coordsize. The width and height attribute have higher priority than the |
| // width and height style values which isn't correct. |
| // * Painting mode isn't implemented. |
| // * Canvas width/height should is using content-box by default. IE in |
| // Quirks mode will draw the canvas using border-box. Either change your |
| // doctype to HTML5 |
| // (http://www.whatwg.org/specs/web-apps/current-work/#the-doctype) |
| // or use Box Sizing Behavior from WebFX |
| // (http://webfx.eae.net/dhtml/boxsizing/boxsizing.html) |
| // * Non uniform scaling does not correctly scale strokes. |
| // * Filling very large shapes (above 5000 points) is buggy. |
| // * Optimize. There is always room for speed improvements. |
| |
| // Only add this code if we do not already have a canvas implementation |
| if (!document.createElement('canvas').getContext) { |
| |
| (function() { |
| |
| // alias some functions to make (compiled) code shorter |
| var m = Math; |
| var mr = m.round; |
| var ms = m.sin; |
| var mc = m.cos; |
| var abs = m.abs; |
| var sqrt = m.sqrt; |
| |
| // this is used for sub pixel precision |
| var Z = 10; |
| var Z2 = Z / 2; |
| |
| /** |
| * This funtion is assigned to the <canvas> elements as element.getContext(). |
| * @this {HTMLElement} |
| * @return {CanvasRenderingContext2D_} |
| */ |
| function getContext() { |
| return this.context_ || |
| (this.context_ = new CanvasRenderingContext2D_(this)); |
| } |
| |
| var slice = Array.prototype.slice; |
| |
| /** |
| * Binds a function to an object. The returned function will always use the |
| * passed in {@code obj} as {@code this}. |
| * |
| * Example: |
| * |
| * g = bind(f, obj, a, b) |
| * g(c, d) // will do f.call(obj, a, b, c, d) |
| * |
| * @param {Function} f The function to bind the object to |
| * @param {Object} obj The object that should act as this when the function |
| * is called |
| * @param {*} var_args Rest arguments that will be used as the initial |
| * arguments when the function is called |
| * @return {Function} A new function that has bound this |
| */ |
| function bind(f, obj, var_args) { |
| var a = slice.call(arguments, 2); |
| return function() { |
| return f.apply(obj, a.concat(slice.call(arguments))); |
| }; |
| } |
| |
| function encodeHtmlAttribute(s) { |
| return String(s).replace(/&/g, '&').replace(/"/g, '"'); |
| } |
| |
| function addNamespacesAndStylesheet(doc) { |
| // create xmlns |
| if (!doc.namespaces['g_vml_']) { |
| doc.namespaces.add('g_vml_', 'urn:schemas-microsoft-com:vml', |
| '#default#VML'); |
| |
| } |
| if (!doc.namespaces['g_o_']) { |
| doc.namespaces.add('g_o_', 'urn:schemas-microsoft-com:office:office', |
| '#default#VML'); |
| } |
| |
| // Setup default CSS. Only add one style sheet per document |
| if (!doc.styleSheets['ex_canvas_']) { |
| var ss = doc.createStyleSheet(); |
| ss.owningElement.id = 'ex_canvas_'; |
| ss.cssText = 'canvas{display:inline-block;overflow:hidden;' + |
| // default size is 300x150 in Gecko and Opera |
| 'text-align:left;width:300px;height:150px}'; |
| } |
| } |
| |
| // Add namespaces and stylesheet at startup. |
| addNamespacesAndStylesheet(document); |
| |
| var G_vmlCanvasManager_ = { |
| init: function(opt_doc) { |
| if (/MSIE/.test(navigator.userAgent) && !window.opera) { |
| var doc = opt_doc || document; |
| // Create a dummy element so that IE will allow canvas elements to be |
| // recognized. |
| doc.createElement('canvas'); |
| doc.attachEvent('onreadystatechange', bind(this.init_, this, doc)); |
| } |
| }, |
| |
| init_: function(doc) { |
| // find all canvas elements |
| var els = doc.getElementsByTagName('canvas'); |
| for (var i = 0; i < els.length; i++) { |
| this.initElement(els[i]); |
| } |
| }, |
| |
| /** |
| * Public initializes a canvas element so that it can be used as canvas |
| * element from now on. This is called automatically before the page is |
| * loaded but if you are creating elements using createElement you need to |
| * make sure this is called on the element. |
| * @param {HTMLElement} el The canvas element to initialize. |
| * @return {HTMLElement} the element that was created. |
| */ |
| initElement: function(el) { |
| if (!el.getContext) { |
| el.getContext = getContext; |
| |
| // Add namespaces and stylesheet to document of the element. |
| addNamespacesAndStylesheet(el.ownerDocument); |
| |
| // Remove fallback content. There is no way to hide text nodes so we |
| // just remove all childNodes. We could hide all elements and remove |
| // text nodes but who really cares about the fallback content. |
| el.innerHTML = ''; |
| |
| // do not use inline function because that will leak memory |
| el.attachEvent('onpropertychange', onPropertyChange); |
| el.attachEvent('onresize', onResize); |
| |
| var attrs = el.attributes; |
| if (attrs.width && attrs.width.specified) { |
| // TODO: use runtimeStyle and coordsize |
| // el.getContext().setWidth_(attrs.width.nodeValue); |
| el.style.width = attrs.width.nodeValue + 'px'; |
| } else { |
| el.width = el.clientWidth; |
| } |
| if (attrs.height && attrs.height.specified) { |
| // TODO: use runtimeStyle and coordsize |
| // el.getContext().setHeight_(attrs.height.nodeValue); |
| el.style.height = attrs.height.nodeValue + 'px'; |
| } else { |
| el.height = el.clientHeight; |
| } |
| //el.getContext().setCoordsize_() |
| } |
| return el; |
| } |
| }; |
| |
| function onPropertyChange(e) { |
| var el = e.srcElement; |
| |
| switch (e.propertyName) { |
| case 'width': |
| el.getContext().clearRect(); |
| el.style.width = el.attributes.width.nodeValue + 'px'; |
| // In IE8 this does not trigger onresize. |
| el.firstChild.style.width = el.clientWidth + 'px'; |
| break; |
| case 'height': |
| el.getContext().clearRect(); |
| el.style.height = el.attributes.height.nodeValue + 'px'; |
| el.firstChild.style.height = el.clientHeight + 'px'; |
| break; |
| } |
| } |
| |
| function onResize(e) { |
| var el = e.srcElement; |
| if (el.firstChild) { |
| el.firstChild.style.width = el.clientWidth + 'px'; |
| el.firstChild.style.height = el.clientHeight + 'px'; |
| } |
| } |
| |
| G_vmlCanvasManager_.init(); |
| |
| // precompute "00" to "FF" |
| var decToHex = []; |
| for (var i = 0; i < 16; i++) { |
| for (var j = 0; j < 16; j++) { |
| decToHex[i * 16 + j] = i.toString(16) + j.toString(16); |
| } |
| } |
| |
| function createMatrixIdentity() { |
| return [ |
| [1, 0, 0], |
| [0, 1, 0], |
| [0, 0, 1] |
| ]; |
| } |
| |
| function matrixMultiply(m1, m2) { |
| var result = createMatrixIdentity(); |
| |
| for (var x = 0; x < 3; x++) { |
| for (var y = 0; y < 3; y++) { |
| var sum = 0; |
| |
| for (var z = 0; z < 3; z++) { |
| sum += m1[x][z] * m2[z][y]; |
| } |
| |
| result[x][y] = sum; |
| } |
| } |
| return result; |
| } |
| |
| function copyState(o1, o2) { |
| o2.fillStyle = o1.fillStyle; |
| o2.lineCap = o1.lineCap; |
| o2.lineJoin = o1.lineJoin; |
| o2.lineWidth = o1.lineWidth; |
| o2.miterLimit = o1.miterLimit; |
| o2.shadowBlur = o1.shadowBlur; |
| o2.shadowColor = o1.shadowColor; |
| o2.shadowOffsetX = o1.shadowOffsetX; |
| o2.shadowOffsetY = o1.shadowOffsetY; |
| o2.strokeStyle = o1.strokeStyle; |
| o2.globalAlpha = o1.globalAlpha; |
| o2.font = o1.font; |
| o2.textAlign = o1.textAlign; |
| o2.textBaseline = o1.textBaseline; |
| o2.arcScaleX_ = o1.arcScaleX_; |
| o2.arcScaleY_ = o1.arcScaleY_; |
| o2.lineScale_ = o1.lineScale_; |
| } |
| |
| var colorData = { |
| aliceblue: '#F0F8FF', |
| antiquewhite: '#FAEBD7', |
| aquamarine: '#7FFFD4', |
| azure: '#F0FFFF', |
| beige: '#F5F5DC', |
| bisque: '#FFE4C4', |
| black: '#000000', |
| blanchedalmond: '#FFEBCD', |
| 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', |
| darkgrey: '#A9A9A9', |
| darkkhaki: '#BDB76B', |
| darkmagenta: '#8B008B', |
| darkolivegreen: '#556B2F', |
| darkorange: '#FF8C00', |
| darkorchid: '#9932CC', |
| darkred: '#8B0000', |
| darksalmon: '#E9967A', |
| darkseagreen: '#8FBC8F', |
| darkslateblue: '#483D8B', |
| darkslategray: '#2F4F4F', |
| darkslategrey: '#2F4F4F', |
| darkturquoise: '#00CED1', |
| darkviolet: '#9400D3', |
| deeppink: '#FF1493', |
| deepskyblue: '#00BFFF', |
| dimgray: '#696969', |
| dimgrey: '#696969', |
| dodgerblue: '#1E90FF', |
| firebrick: '#B22222', |
| floralwhite: '#FFFAF0', |
| forestgreen: '#228B22', |
| gainsboro: '#DCDCDC', |
| ghostwhite: '#F8F8FF', |
| gold: '#FFD700', |
| goldenrod: '#DAA520', |
| grey: '#808080', |
| 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', |
| lightgreen: '#90EE90', |
| lightgrey: '#D3D3D3', |
| lightpink: '#FFB6C1', |
| lightsalmon: '#FFA07A', |
| lightseagreen: '#20B2AA', |
| lightskyblue: '#87CEFA', |
| lightslategray: '#778899', |
| lightslategrey: '#778899', |
| lightsteelblue: '#B0C4DE', |
| lightyellow: '#FFFFE0', |
| limegreen: '#32CD32', |
| linen: '#FAF0E6', |
| magenta: '#FF00FF', |
| mediumaquamarine: '#66CDAA', |
| mediumblue: '#0000CD', |
| mediumorchid: '#BA55D3', |
| mediumpurple: '#9370DB', |
| mediumseagreen: '#3CB371', |
| mediumslateblue: '#7B68EE', |
| mediumspringgreen: '#00FA9A', |
| mediumturquoise: '#48D1CC', |
| mediumvioletred: '#C71585', |
| midnightblue: '#191970', |
| mintcream: '#F5FFFA', |
| mistyrose: '#FFE4E1', |
| moccasin: '#FFE4B5', |
| navajowhite: '#FFDEAD', |
| oldlace: '#FDF5E6', |
| olivedrab: '#6B8E23', |
| orange: '#FFA500', |
| orangered: '#FF4500', |
| orchid: '#DA70D6', |
| palegoldenrod: '#EEE8AA', |
| palegreen: '#98FB98', |
| paleturquoise: '#AFEEEE', |
| palevioletred: '#DB7093', |
| papayawhip: '#FFEFD5', |
| peachpuff: '#FFDAB9', |
| peru: '#CD853F', |
| pink: '#FFC0CB', |
| plum: '#DDA0DD', |
| powderblue: '#B0E0E6', |
| rosybrown: '#BC8F8F', |
| royalblue: '#4169E1', |
| saddlebrown: '#8B4513', |
| salmon: '#FA8072', |
| sandybrown: '#F4A460', |
| seagreen: '#2E8B57', |
| seashell: '#FFF5EE', |
| sienna: '#A0522D', |
| skyblue: '#87CEEB', |
| slateblue: '#6A5ACD', |
| slategray: '#708090', |
| slategrey: '#708090', |
| snow: '#FFFAFA', |
| springgreen: '#00FF7F', |
| steelblue: '#4682B4', |
| tan: '#D2B48C', |
| thistle: '#D8BFD8', |
| tomato: '#FF6347', |
| turquoise: '#40E0D0', |
| violet: '#EE82EE', |
| wheat: '#F5DEB3', |
| whitesmoke: '#F5F5F5', |
| yellowgreen: '#9ACD32' |
| }; |
| |
| |
| function getRgbHslContent(styleString) { |
| var start = styleString.indexOf('(', 3); |
| var end = styleString.indexOf(')', start + 1); |
| var parts = styleString.substring(start + 1, end).split(','); |
| // add alpha if needed |
| if (parts.length == 4 && styleString.substr(3, 1) == 'a') { |
| alpha = Number(parts[3]); |
| } else { |
| parts[3] = 1; |
| } |
| return parts; |
| } |
| |
| function percent(s) { |
| return parseFloat(s) / 100; |
| } |
| |
| function clamp(v, min, max) { |
| return Math.min(max, Math.max(min, v)); |
| } |
| |
| function hslToRgb(parts){ |
| var r, g, b; |
| h = parseFloat(parts[0]) / 360 % 360; |
| if (h < 0) |
| h++; |
| s = clamp(percent(parts[1]), 0, 1); |
| l = clamp(percent(parts[2]), 0, 1); |
| if (s == 0) { |
| r = g = b = l; // achromatic |
| } else { |
| var q = l < 0.5 ? l * (1 + s) : l + s - l * s; |
| var p = 2 * l - q; |
| r = hueToRgb(p, q, h + 1 / 3); |
| g = hueToRgb(p, q, h); |
| b = hueToRgb(p, q, h - 1 / 3); |
| } |
| |
| return '#' + decToHex[Math.floor(r * 255)] + |
| decToHex[Math.floor(g * 255)] + |
| decToHex[Math.floor(b * 255)]; |
| } |
| |
| function hueToRgb(m1, m2, h) { |
| if (h < 0) |
| h++; |
| if (h > 1) |
| h--; |
| |
| if (6 * h < 1) |
| return m1 + (m2 - m1) * 6 * h; |
| else if (2 * h < 1) |
| return m2; |
| else if (3 * h < 2) |
| return m1 + (m2 - m1) * (2 / 3 - h) * 6; |
| else |
| return m1; |
| } |
| |
| function processStyle(styleString) { |
| var str, alpha = 1; |
| |
| styleString = String(styleString); |
| if (styleString.charAt(0) == '#') { |
| str = styleString; |
| } else if (/^rgb/.test(styleString)) { |
| var parts = getRgbHslContent(styleString); |
| var str = '#', n; |
| for (var i = 0; i < 3; i++) { |
| if (parts[i].indexOf('%') != -1) { |
| n = Math.floor(percent(parts[i]) * 255); |
| } else { |
| n = Number(parts[i]); |
| } |
| str += decToHex[clamp(n, 0, 255)]; |
| } |
| alpha = parts[3]; |
| } else if (/^hsl/.test(styleString)) { |
| var parts = getRgbHslContent(styleString); |
| str = hslToRgb(parts); |
| alpha = parts[3]; |
| } else { |
| str = colorData[styleString] || styleString; |
| } |
| return {color: str, alpha: alpha}; |
| } |
| |
| var DEFAULT_STYLE = { |
| style: 'normal', |
| variant: 'normal', |
| weight: 'normal', |
| size: 10, |
| family: 'sans-serif' |
| }; |
| |
| // Internal text style cache |
| var fontStyleCache = {}; |
| |
| function processFontStyle(styleString) { |
| if (fontStyleCache[styleString]) { |
| return fontStyleCache[styleString]; |
| } |
| |
| var el = document.createElement('div'); |
| var style = el.style; |
| try { |
| style.font = styleString; |
| } catch (ex) { |
| // Ignore failures to set to invalid font. |
| } |
| |
| return fontStyleCache[styleString] = { |
| style: style.fontStyle || DEFAULT_STYLE.style, |
| variant: style.fontVariant || DEFAULT_STYLE.variant, |
| weight: style.fontWeight || DEFAULT_STYLE.weight, |
| size: style.fontSize || DEFAULT_STYLE.size, |
| family: style.fontFamily || DEFAULT_STYLE.family |
| }; |
| } |
| |
| function getComputedStyle(style, element) { |
| var computedStyle = {}; |
| |
| for (var p in style) { |
| computedStyle[p] = style[p]; |
| } |
| |
| // Compute the size |
| var canvasFontSize = parseFloat(element.currentStyle.fontSize), |
| fontSize = parseFloat(style.size); |
| |
| if (typeof style.size == 'number') { |
| computedStyle.size = style.size; |
| } else if (style.size.indexOf('px') != -1) { |
| computedStyle.size = fontSize; |
| } else if (style.size.indexOf('em') != -1) { |
| computedStyle.size = canvasFontSize * fontSize; |
| } else if(style.size.indexOf('%') != -1) { |
| computedStyle.size = (canvasFontSize / 100) * fontSize; |
| } else if (style.size.indexOf('pt') != -1) { |
| computedStyle.size = fontSize / .75; |
| } else { |
| computedStyle.size = canvasFontSize; |
| } |
| |
| // Different scaling between normal text and VML text. This was found using |
| // trial and error to get the same size as non VML text. |
| computedStyle.size *= 0.981; |
| |
| return computedStyle; |
| } |
| |
| function buildStyle(style) { |
| return style.style + ' ' + style.variant + ' ' + style.weight + ' ' + |
| style.size + 'px ' + style.family; |
| } |
| |
| function processLineCap(lineCap) { |
| switch (lineCap) { |
| case 'butt': |
| return 'flat'; |
| case 'round': |
| return 'round'; |
| case 'square': |
| default: |
| return 'square'; |
| } |
| } |
| |
| /** |
| * This class implements CanvasRenderingContext2D interface as described by |
| * the WHATWG. |
| * @param {HTMLElement} surfaceElement The element that the 2D context should |
| * be associated with |
| */ |
| function CanvasRenderingContext2D_(surfaceElement) { |
| this.m_ = createMatrixIdentity(); |
| |
| this.mStack_ = []; |
| this.aStack_ = []; |
| this.currentPath_ = []; |
| |
| // Canvas context properties |
| this.strokeStyle = '#000'; |
| this.fillStyle = '#000'; |
| |
| this.lineWidth = 1; |
| this.lineJoin = 'miter'; |
| this.lineCap = 'butt'; |
| this.miterLimit = Z * 1; |
| this.globalAlpha = 1; |
| this.font = '10px sans-serif'; |
| this.textAlign = 'left'; |
| this.textBaseline = 'alphabetic'; |
| this.canvas = surfaceElement; |
| |
| var el = surfaceElement.ownerDocument.createElement('div'); |
| el.style.width = surfaceElement.clientWidth + 'px'; |
| el.style.height = surfaceElement.clientHeight + 'px'; |
| el.style.overflow = 'hidden'; |
| el.style.position = 'absolute'; |
| surfaceElement.appendChild(el); |
| |
| this.element_ = el; |
| this.arcScaleX_ = 1; |
| this.arcScaleY_ = 1; |
| this.lineScale_ = 1; |
| } |
| |
| var contextPrototype = CanvasRenderingContext2D_.prototype; |
| contextPrototype.clearRect = function() { |
| if (this.textMeasureEl_) { |
| this.textMeasureEl_.removeNode(true); |
| this.textMeasureEl_ = null; |
| } |
| this.element_.innerHTML = ''; |
| }; |
| |
| contextPrototype.beginPath = function() { |
| // TODO: Branch current matrix so that save/restore has no effect |
| // as per safari docs. |
| this.currentPath_ = []; |
| }; |
| |
| contextPrototype.moveTo = function(aX, aY) { |
| var p = this.getCoords_(aX, aY); |
| this.currentPath_.push({type: 'moveTo', x: p.x, y: p.y}); |
| this.currentX_ = p.x; |
| this.currentY_ = p.y; |
| }; |
| |
| contextPrototype.lineTo = function(aX, aY) { |
| var p = this.getCoords_(aX, aY); |
| this.currentPath_.push({type: 'lineTo', x: p.x, y: p.y}); |
| |
| this.currentX_ = p.x; |
| this.currentY_ = p.y; |
| }; |
| |
| contextPrototype.bezierCurveTo = function(aCP1x, aCP1y, |
| aCP2x, aCP2y, |
| aX, aY) { |
| var p = this.getCoords_(aX, aY); |
| var cp1 = this.getCoords_(aCP1x, aCP1y); |
| var cp2 = this.getCoords_(aCP2x, aCP2y); |
| bezierCurveTo(this, cp1, cp2, p); |
| }; |
| |
| // Helper function that takes the already fixed cordinates. |
| function bezierCurveTo(self, cp1, cp2, p) { |
| self.currentPath_.push({ |
| type: 'bezierCurveTo', |
| cp1x: cp1.x, |
| cp1y: cp1.y, |
| cp2x: cp2.x, |
| cp2y: cp2.y, |
| x: p.x, |
| y: p.y |
| }); |
| self.currentX_ = p.x; |
| self.currentY_ = p.y; |
| } |
| |
| contextPrototype.quadraticCurveTo = function(aCPx, aCPy, aX, aY) { |
| // the following is lifted almost directly from |
| // http://developer.mozilla.org/en/docs/Canvas_tutorial:Drawing_shapes |
| |
| var cp = this.getCoords_(aCPx, aCPy); |
| var p = this.getCoords_(aX, aY); |
| |
| var cp1 = { |
| x: this.currentX_ + 2.0 / 3.0 * (cp.x - this.currentX_), |
| y: this.currentY_ + 2.0 / 3.0 * (cp.y - this.currentY_) |
| }; |
| var cp2 = { |
| x: cp1.x + (p.x - this.currentX_) / 3.0, |
| y: cp1.y + (p.y - this.currentY_) / 3.0 |
| }; |
| |
| bezierCurveTo(this, cp1, cp2, p); |
| }; |
| |
| contextPrototype.arc = function(aX, aY, aRadius, |
| aStartAngle, aEndAngle, aClockwise) { |
| aRadius *= Z; |
| var arcType = aClockwise ? 'at' : 'wa'; |
| |
| var xStart = aX + mc(aStartAngle) * aRadius - Z2; |
| var yStart = aY + ms(aStartAngle) * aRadius - Z2; |
| |
| var xEnd = aX + mc(aEndAngle) * aRadius - Z2; |
| var yEnd = aY + ms(aEndAngle) * aRadius - Z2; |
| |
| // IE won't render arches drawn counter clockwise if xStart == xEnd. |
| if (xStart == xEnd && !aClockwise) { |
| xStart += 0.125; // Offset xStart by 1/80 of a pixel. Use something |
| // that can be represented in binary |
| } |
| |
| var p = this.getCoords_(aX, aY); |
| var pStart = this.getCoords_(xStart, yStart); |
| var pEnd = this.getCoords_(xEnd, yEnd); |
| |
| this.currentPath_.push({type: arcType, |
| x: p.x, |
| y: p.y, |
| radius: aRadius, |
| xStart: pStart.x, |
| yStart: pStart.y, |
| xEnd: pEnd.x, |
| yEnd: pEnd.y}); |
| |
| }; |
| |
| contextPrototype.rect = function(aX, aY, aWidth, aHeight) { |
| this.moveTo(aX, aY); |
| this.lineTo(aX + aWidth, aY); |
| this.lineTo(aX + aWidth, aY + aHeight); |
| this.lineTo(aX, aY + aHeight); |
| this.closePath(); |
| }; |
| |
| contextPrototype.strokeRect = function(aX, aY, aWidth, aHeight) { |
| var oldPath = this.currentPath_; |
| this.beginPath(); |
| |
| this.moveTo(aX, aY); |
| this.lineTo(aX + aWidth, aY); |
| this.lineTo(aX + aWidth, aY + aHeight); |
| this.lineTo(aX, aY + aHeight); |
| this.closePath(); |
| this.stroke(); |
| |
| this.currentPath_ = oldPath; |
| }; |
| |
| contextPrototype.fillRect = function(aX, aY, aWidth, aHeight) { |
| var oldPath = this.currentPath_; |
| this.beginPath(); |
| |
| this.moveTo(aX, aY); |
| this.lineTo(aX + aWidth, aY); |
| this.lineTo(aX + aWidth, aY + aHeight); |
| this.lineTo(aX, aY + aHeight); |
| this.closePath(); |
| this.fill(); |
| |
| this.currentPath_ = oldPath; |
| }; |
| |
| contextPrototype.createLinearGradient = function(aX0, aY0, aX1, aY1) { |
| var gradient = new CanvasGradient_('gradient'); |
| gradient.x0_ = aX0; |
| gradient.y0_ = aY0; |
| gradient.x1_ = aX1; |
| gradient.y1_ = aY1; |
| return gradient; |
| }; |
| |
| contextPrototype.createRadialGradient = function(aX0, aY0, aR0, |
| aX1, aY1, aR1) { |
| var gradient = new CanvasGradient_('gradientradial'); |
| gradient.x0_ = aX0; |
| gradient.y0_ = aY0; |
| gradient.r0_ = aR0; |
| gradient.x1_ = aX1; |
| gradient.y1_ = aY1; |
| gradient.r1_ = aR1; |
| return gradient; |
| }; |
| |
| contextPrototype.drawImage = function(image, var_args) { |
| var dx, dy, dw, dh, sx, sy, sw, sh; |
| |
| // to find the original width we overide the width and height |
| var oldRuntimeWidth = image.runtimeStyle.width; |
| var oldRuntimeHeight = image.runtimeStyle.height; |
| image.runtimeStyle.width = 'auto'; |
| image.runtimeStyle.height = 'auto'; |
| |
| // get the original size |
| var w = image.width; |
| var h = image.height; |
| |
| // and remove overides |
| image.runtimeStyle.width = oldRuntimeWidth; |
| image.runtimeStyle.height = oldRuntimeHeight; |
| |
| if (arguments.length == 3) { |
| dx = arguments[1]; |
| dy = arguments[2]; |
| sx = sy = 0; |
| sw = dw = w; |
| sh = dh = h; |
| } else if (arguments.length == 5) { |
| dx = arguments[1]; |
| dy = arguments[2]; |
| dw = arguments[3]; |
| dh = arguments[4]; |
| sx = sy = 0; |
| sw = w; |
| sh = h; |
| } else if (arguments.length == 9) { |
| sx = arguments[1]; |
| sy = arguments[2]; |
| sw = arguments[3]; |
| sh = arguments[4]; |
| dx = arguments[5]; |
| dy = arguments[6]; |
| dw = arguments[7]; |
| dh = arguments[8]; |
| } else { |
| throw Error('Invalid number of arguments'); |
| } |
| |
| var d = this.getCoords_(dx, dy); |
| |
| var w2 = sw / 2; |
| var h2 = sh / 2; |
| |
| var vmlStr = []; |
| |
| var W = 10; |
| var H = 10; |
| |
| // For some reason that I've now forgotten, using divs didn't work |
| vmlStr.push(' <g_vml_:group', |
| ' coordsize="', Z * W, ',', Z * H, '"', |
| ' coordorigin="0,0"' , |
| ' style="width:', W, 'px;height:', H, 'px;position:absolute;'); |
| |
| // If filters are necessary (rotation exists), create them |
| // filters are bog-slow, so only create them if abbsolutely necessary |
| // The following check doesn't account for skews (which don't exist |
| // in the canvas spec (yet) anyway. |
| |
| if (this.m_[0][0] != 1 || this.m_[0][1] || |
| this.m_[1][1] != 1 || this.m_[1][0]) { |
| var filter = []; |
| |
| // Note the 12/21 reversal |
| filter.push('M11=', this.m_[0][0], ',', |
| 'M12=', this.m_[1][0], ',', |
| 'M21=', this.m_[0][1], ',', |
| 'M22=', this.m_[1][1], ',', |
| 'Dx=', mr(d.x / Z), ',', |
| 'Dy=', mr(d.y / Z), ''); |
| |
| // Bounding box calculation (need to minimize displayed area so that |
| // filters don't waste time on unused pixels. |
| var max = d; |
| var c2 = this.getCoords_(dx + dw, dy); |
| var c3 = this.getCoords_(dx, dy + dh); |
| var c4 = this.getCoords_(dx + dw, dy + dh); |
| |
| max.x = m.max(max.x, c2.x, c3.x, c4.x); |
| max.y = m.max(max.y, c2.y, c3.y, c4.y); |
| |
| vmlStr.push('padding:0 ', mr(max.x / Z), 'px ', mr(max.y / Z), |
| 'px 0;filter:progid:DXImageTransform.Microsoft.Matrix(', |
| filter.join(''), ", sizingmethod='clip');"); |
| |
| } else { |
| vmlStr.push('top:', mr(d.y / Z), 'px;left:', mr(d.x / Z), 'px;'); |
| } |
| |
| vmlStr.push(' ">' , |
| '<g_vml_:image src="', image.src, '"', |
| ' style="width:', Z * dw, 'px;', |
| ' height:', Z * dh, 'px"', |
| ' cropleft="', sx / w, '"', |
| ' croptop="', sy / h, '"', |
| ' cropright="', (w - sx - sw) / w, '"', |
| ' cropbottom="', (h - sy - sh) / h, '"', |
| ' />', |
| '</g_vml_:group>'); |
| |
| this.element_.insertAdjacentHTML('BeforeEnd', vmlStr.join('')); |
| }; |
| |
| contextPrototype.stroke = function(aFill) { |
| var W = 10; |
| var H = 10; |
| // Divide the shape into chunks if it's too long because IE has a limit |
| // somewhere for how long a VML shape can be. This simple division does |
| // not work with fills, only strokes, unfortunately. |
| var chunkSize = 5000; |
| |
| var min = {x: null, y: null}; |
| var max = {x: null, y: null}; |
| |
| for (var j = 0; j < this.currentPath_.length; j += chunkSize) { |
| var lineStr = []; |
| var lineOpen = false; |
| |
| lineStr.push('<g_vml_:shape', |
| ' filled="', !!aFill, '"', |
| ' style="position:absolute;width:', W, 'px;height:', H, 'px;"', |
| ' coordorigin="0,0"', |
| ' coordsize="', Z * W, ',', Z * H, '"', |
| ' stroked="', !aFill, '"', |
| ' path="'); |
| |
| var newSeq = false; |
| |
| for (var i = j; i < Math.min(j + chunkSize, this.currentPath_.length); i++) { |
| if (i % chunkSize == 0 && i > 0) { // move into position for next chunk |
| lineStr.push(' m ', mr(this.currentPath_[i-1].x), ',', mr(this.currentPath_[i-1].y)); |
| } |
| |
| var p = this.currentPath_[i]; |
| var c; |
| |
| switch (p.type) { |
| case 'moveTo': |
| c = p; |
| lineStr.push(' m ', mr(p.x), ',', mr(p.y)); |
| break; |
| case 'lineTo': |
| lineStr.push(' l ', mr(p.x), ',', mr(p.y)); |
| break; |
| case 'close': |
| lineStr.push(' x '); |
| p = null; |
| break; |
| case 'bezierCurveTo': |
| lineStr.push(' c ', |
| mr(p.cp1x), ',', mr(p.cp1y), ',', |
| mr(p.cp2x), ',', mr(p.cp2y), ',', |
| mr(p.x), ',', mr(p.y)); |
| break; |
| case 'at': |
| case 'wa': |
| lineStr.push(' ', p.type, ' ', |
| mr(p.x - this.arcScaleX_ * p.radius), ',', |
| mr(p.y - this.arcScaleY_ * p.radius), ' ', |
| mr(p.x + this.arcScaleX_ * p.radius), ',', |
| mr(p.y + this.arcScaleY_ * p.radius), ' ', |
| mr(p.xStart), ',', mr(p.yStart), ' ', |
| mr(p.xEnd), ',', mr(p.yEnd)); |
| break; |
| } |
| |
| |
| // TODO: Following is broken for curves due to |
| // move to proper paths. |
| |
| // Figure out dimensions so we can do gradient fills |
| // properly |
| if (p) { |
| if (min.x == null || p.x < min.x) { |
| min.x = p.x; |
| } |
| if (max.x == null || p.x > max.x) { |
| max.x = p.x; |
| } |
| if (min.y == null || p.y < min.y) { |
| min.y = p.y; |
| } |
| if (max.y == null || p.y > max.y) { |
| max.y = p.y; |
| } |
| } |
| } |
| lineStr.push(' ">'); |
| |
| if (!aFill) { |
| appendStroke(this, lineStr); |
| } else { |
| appendFill(this, lineStr, min, max); |
| } |
| |
| lineStr.push('</g_vml_:shape>'); |
| |
| this.element_.insertAdjacentHTML('beforeEnd', lineStr.join('')); |
| } |
| }; |
| |
| function appendStroke(ctx, lineStr) { |
| var a = processStyle(ctx.strokeStyle); |
| var color = a.color; |
| var opacity = a.alpha * ctx.globalAlpha; |
| var lineWidth = ctx.lineScale_ * ctx.lineWidth; |
| |
| // VML cannot correctly render a line if the width is less than 1px. |
| // In that case, we dilute the color to make the line look thinner. |
| if (lineWidth < 1) { |
| opacity *= lineWidth; |
| } |
| |
| lineStr.push( |
| '<g_vml_:stroke', |
| ' opacity="', opacity, '"', |
| ' joinstyle="', ctx.lineJoin, '"', |
| ' miterlimit="', ctx.miterLimit, '"', |
| ' endcap="', processLineCap(ctx.lineCap), '"', |
| ' weight="', lineWidth, 'px"', |
| ' color="', color, '" />' |
| ); |
| } |
| |
| function appendFill(ctx, lineStr, min, max) { |
| var fillStyle = ctx.fillStyle; |
| var arcScaleX = ctx.arcScaleX_; |
| var arcScaleY = ctx.arcScaleY_; |
| var width = max.x - min.x; |
| var height = max.y - min.y; |
| if (fillStyle instanceof CanvasGradient_) { |
| // TODO: Gradients transformed with the transformation matrix. |
| var angle = 0; |
| var focus = {x: 0, y: 0}; |
| |
| // additional offset |
| var shift = 0; |
| // scale factor for offset |
| var expansion = 1; |
| |
| if (fillStyle.type_ == 'gradient') { |
| var x0 = fillStyle.x0_ / arcScaleX; |
| var y0 = fillStyle.y0_ / arcScaleY; |
| var x1 = fillStyle.x1_ / arcScaleX; |
| var y1 = fillStyle.y1_ / arcScaleY; |
| var p0 = ctx.getCoords_(x0, y0); |
| var p1 = ctx.getCoords_(x1, y1); |
| var dx = p1.x - p0.x; |
| var dy = p1.y - p0.y; |
| angle = Math.atan2(dx, dy) * 180 / Math.PI; |
| |
| // The angle should be a non-negative number. |
| if (angle < 0) { |
| angle += 360; |
| } |
| |
| // Very small angles produce an unexpected result because they are |
| // converted to a scientific notation string. |
| if (angle < 1e-6) { |
| angle = 0; |
| } |
| } else { |
| var p0 = ctx.getCoords_(fillStyle.x0_, fillStyle.y0_); |
| focus = { |
| x: (p0.x - min.x) / width, |
| y: (p0.y - min.y) / height |
| }; |
| |
| width /= arcScaleX * Z; |
| height /= arcScaleY * Z; |
| var dimension = m.max(width, height); |
| shift = 2 * fillStyle.r0_ / dimension; |
| expansion = 2 * fillStyle.r1_ / dimension - shift; |
| } |
| |
| // We need to sort the color stops in ascending order by offset, |
| // otherwise IE won't interpret it correctly. |
| var stops = fillStyle.colors_; |
| stops.sort(function(cs1, cs2) { |
| return cs1.offset - cs2.offset; |
| }); |
| |
| var length = stops.length; |
| var color1 = stops[0].color; |
| var color2 = stops[length - 1].color; |
| var opacity1 = stops[0].alpha * ctx.globalAlpha; |
| var opacity2 = stops[length - 1].alpha * ctx.globalAlpha; |
| |
| var colors = []; |
| for (var i = 0; i < length; i++) { |
| var stop = stops[i]; |
| colors.push(stop.offset * expansion + shift + ' ' + stop.color); |
| } |
| |
| // When colors attribute is used, the meanings of opacity and o:opacity2 |
| // are reversed. |
| lineStr.push('<g_vml_:fill type="', fillStyle.type_, '"', |
| ' method="none" focus="100%"', |
| ' color="', color1, '"', |
| ' color2="', color2, '"', |
| ' colors="', colors.join(','), '"', |
| ' opacity="', opacity2, '"', |
| ' g_o_:opacity2="', opacity1, '"', |
| ' angle="', angle, '"', |
| ' focusposition="', focus.x, ',', focus.y, '" />'); |
| } else if (fillStyle instanceof CanvasPattern_) { |
| if (width && height) { |
| var deltaLeft = -min.x; |
| var deltaTop = -min.y; |
| lineStr.push('<g_vml_:fill', |
| ' position="', |
| deltaLeft / width * arcScaleX * arcScaleX, ',', |
| deltaTop / height * arcScaleY * arcScaleY, '"', |
| ' type="tile"', |
| // TODO: Figure out the correct size to fit the scale. |
| //' size="', w, 'px ', h, 'px"', |
| ' src="', fillStyle.src_, '" />'); |
| } |
| } else { |
| var a = processStyle(ctx.fillStyle); |
| var color = a.color; |
| var opacity = a.alpha * ctx.globalAlpha; |
| lineStr.push('<g_vml_:fill color="', color, '" opacity="', opacity, |
| '" />'); |
| } |
| } |
| |
| contextPrototype.fill = function() { |
| this.stroke(true); |
| }; |
| |
| contextPrototype.closePath = function() { |
| this.currentPath_.push({type: 'close'}); |
| }; |
| |
| /** |
| * @private |
| */ |
| contextPrototype.getCoords_ = function(aX, aY) { |
| var m = this.m_; |
| return { |
| x: Z * (aX * m[0][0] + aY * m[1][0] + m[2][0]) - Z2, |
| y: Z * (aX * m[0][1] + aY * m[1][1] + m[2][1]) - Z2 |
| }; |
| }; |
| |
| contextPrototype.save = function() { |
| var o = {}; |
| copyState(this, o); |
| this.aStack_.push(o); |
| this.mStack_.push(this.m_); |
| this.m_ = matrixMultiply(createMatrixIdentity(), this.m_); |
| }; |
| |
| contextPrototype.restore = function() { |
| if (this.aStack_.length) { |
| copyState(this.aStack_.pop(), this); |
| this.m_ = this.mStack_.pop(); |
| } |
| }; |
| |
| function matrixIsFinite(m) { |
| return isFinite(m[0][0]) && isFinite(m[0][1]) && |
| isFinite(m[1][0]) && isFinite(m[1][1]) && |
| isFinite(m[2][0]) && isFinite(m[2][1]); |
| } |
| |
| function setM(ctx, m, updateLineScale) { |
| if (!matrixIsFinite(m)) { |
| return; |
| } |
| ctx.m_ = m; |
| |
| if (updateLineScale) { |
| // Get the line scale. |
| // Determinant of this.m_ means how much the area is enlarged by the |
| // transformation. So its square root can be used as a scale factor |
| // for width. |
| var det = m[0][0] * m[1][1] - m[0][1] * m[1][0]; |
| ctx.lineScale_ = sqrt(abs(det)); |
| } |
| } |
| |
| contextPrototype.translate = function(aX, aY) { |
| var m1 = [ |
| [1, 0, 0], |
| [0, 1, 0], |
| [aX, aY, 1] |
| ]; |
| |
| setM(this, matrixMultiply(m1, this.m_), false); |
| }; |
| |
| contextPrototype.rotate = function(aRot) { |
| var c = mc(aRot); |
| var s = ms(aRot); |
| |
| var m1 = [ |
| [c, s, 0], |
| [-s, c, 0], |
| [0, 0, 1] |
| ]; |
| |
| setM(this, matrixMultiply(m1, this.m_), false); |
| }; |
| |
| contextPrototype.scale = function(aX, aY) { |
| this.arcScaleX_ *= aX; |
| this.arcScaleY_ *= aY; |
| var m1 = [ |
| [aX, 0, 0], |
| [0, aY, 0], |
| [0, 0, 1] |
| ]; |
| |
| setM(this, matrixMultiply(m1, this.m_), true); |
| }; |
| |
| contextPrototype.transform = function(m11, m12, m21, m22, dx, dy) { |
| var m1 = [ |
| [m11, m12, 0], |
| [m21, m22, 0], |
| [dx, dy, 1] |
| ]; |
| |
| setM(this, matrixMultiply(m1, this.m_), true); |
| }; |
| |
| contextPrototype.setTransform = function(m11, m12, m21, m22, dx, dy) { |
| var m = [ |
| [m11, m12, 0], |
| [m21, m22, 0], |
| [dx, dy, 1] |
| ]; |
| |
| setM(this, m, true); |
| }; |
| |
| /** |
| * The text drawing function. |
| * The maxWidth argument isn't taken in account, since no browser supports |
| * it yet. |
| */ |
| contextPrototype.drawText_ = function(text, x, y, maxWidth, stroke) { |
| var m = this.m_, |
| delta = 1000, |
| left = 0, |
| right = delta, |
| offset = {x: 0, y: 0}, |
| lineStr = []; |
| |
| var fontStyle = getComputedStyle(processFontStyle(this.font), |
| this.element_); |
| |
| var fontStyleString = buildStyle(fontStyle); |
| |
| var elementStyle = this.element_.currentStyle; |
| var textAlign = this.textAlign.toLowerCase(); |
| switch (textAlign) { |
| case 'left': |
| case 'center': |
| case 'right': |
| break; |
| case 'end': |
| textAlign = elementStyle.direction == 'ltr' ? 'right' : 'left'; |
| break; |
| case 'start': |
| textAlign = elementStyle.direction == 'rtl' ? 'right' : 'left'; |
| break; |
| default: |
| textAlign = 'left'; |
| } |
| |
| // 1.75 is an arbitrary number, as there is no info about the text baseline |
| switch (this.textBaseline) { |
| case 'hanging': |
| case 'top': |
| offset.y = fontStyle.size / 1.75; |
| break; |
| case 'middle': |
| break; |
| default: |
| case null: |
| case 'alphabetic': |
| case 'ideographic': |
| case 'bottom': |
| offset.y = -fontStyle.size / 2.25; |
| break; |
| } |
| |
| switch(textAlign) { |
| case 'right': |
| left = delta; |
| right = 0.05; |
| break; |
| case 'center': |
| left = right = delta / 2; |
| break; |
| } |
| |
| var d = this.getCoords_(x + offset.x, y + offset.y); |
| |
| lineStr.push('<g_vml_:line from="', -left ,' 0" to="', right ,' 0.05" ', |
| ' coordsize="100 100" coordorigin="0 0"', |
| ' filled="', !stroke, '" stroked="', !!stroke, |
| '" style="position:absolute;width:1px;height:1px;">'); |
| |
| if (stroke) { |
| appendStroke(this, lineStr); |
| } else { |
| // TODO: Fix the min and max params. |
| appendFill(this, lineStr, {x: -left, y: 0}, |
| {x: right, y: fontStyle.size}); |
| } |
| |
| var skewM = m[0][0].toFixed(3) + ',' + m[1][0].toFixed(3) + ',' + |
| m[0][1].toFixed(3) + ',' + m[1][1].toFixed(3) + ',0,0'; |
| |
| var skewOffset = mr(d.x / Z) + ',' + mr(d.y / Z); |
| |
| lineStr.push('<g_vml_:skew on="t" matrix="', skewM ,'" ', |
| ' offset="', skewOffset, '" origin="', left ,' 0" />', |
| '<g_vml_:path textpathok="true" />', |
| '<g_vml_:textpath on="true" string="', |
| encodeHtmlAttribute(text), |
| '" style="v-text-align:', textAlign, |
| ';font:', encodeHtmlAttribute(fontStyleString), |
| '" /></g_vml_:line>'); |
| |
| this.element_.insertAdjacentHTML('beforeEnd', lineStr.join('')); |
| }; |
| |
| contextPrototype.fillText = function(text, x, y, maxWidth) { |
| this.drawText_(text, x, y, maxWidth, false); |
| }; |
| |
| contextPrototype.strokeText = function(text, x, y, maxWidth) { |
| this.drawText_(text, x, y, maxWidth, true); |
| }; |
| |
| contextPrototype.measureText = function(text) { |
| if (!this.textMeasureEl_) { |
| var s = '<span style="position:absolute;' + |
| 'top:-20000px;left:0;padding:0;margin:0;border:none;' + |
| 'white-space:pre;"></span>'; |
| this.element_.insertAdjacentHTML('beforeEnd', s); |
| this.textMeasureEl_ = this.element_.lastChild; |
| } |
| var doc = this.element_.ownerDocument; |
| this.textMeasureEl_.innerHTML = ''; |
| this.textMeasureEl_.style.font = this.font; |
| // Don't use innerHTML or innerText because they allow markup/whitespace. |
| this.textMeasureEl_.appendChild(doc.createTextNode(text)); |
| return {width: this.textMeasureEl_.offsetWidth}; |
| }; |
| |
| /******** STUBS ********/ |
| contextPrototype.clip = function() { |
| // TODO: Implement |
| }; |
| |
| contextPrototype.arcTo = function() { |
| // TODO: Implement |
| }; |
| |
| contextPrototype.createPattern = function(image, repetition) { |
| return new CanvasPattern_(image, repetition); |
| }; |
| |
| // Gradient / Pattern Stubs |
| function CanvasGradient_(aType) { |
| this.type_ = aType; |
| this.x0_ = 0; |
| this.y0_ = 0; |
| this.r0_ = 0; |
| this.x1_ = 0; |
| this.y1_ = 0; |
| this.r1_ = 0; |
| this.colors_ = []; |
| } |
| |
| CanvasGradient_.prototype.addColorStop = function(aOffset, aColor) { |
| aColor = processStyle(aColor); |
| this.colors_.push({offset: aOffset, |
| color: aColor.color, |
| alpha: aColor.alpha}); |
| }; |
| |
| function CanvasPattern_(image, repetition) { |
| assertImageIsValid(image); |
| switch (repetition) { |
| case 'repeat': |
| case null: |
| case '': |
| this.repetition_ = 'repeat'; |
| break |
| case 'repeat-x': |
| case 'repeat-y': |
| case 'no-repeat': |
| this.repetition_ = repetition; |
| break; |
| default: |
| throwException('SYNTAX_ERR'); |
| } |
| |
| this.src_ = image.src; |
| this.width_ = image.width; |
| this.height_ = image.height; |
| } |
| |
| function throwException(s) { |
| throw new DOMException_(s); |
| } |
| |
| function assertImageIsValid(img) { |
| if (!img || img.nodeType != 1 || img.tagName != 'IMG') { |
| throwException('TYPE_MISMATCH_ERR'); |
| } |
| if (img.readyState != 'complete') { |
| throwException('INVALID_STATE_ERR'); |
| } |
| } |
| |
| function DOMException_(s) { |
| this.code = this[s]; |
| this.message = s +': DOM Exception ' + this.code; |
| } |
| var p = DOMException_.prototype = new Error; |
| p.INDEX_SIZE_ERR = 1; |
| p.DOMSTRING_SIZE_ERR = 2; |
| p.HIERARCHY_REQUEST_ERR = 3; |
| p.WRONG_DOCUMENT_ERR = 4; |
| p.INVALID_CHARACTER_ERR = 5; |
| p.NO_DATA_ALLOWED_ERR = 6; |
| p.NO_MODIFICATION_ALLOWED_ERR = 7; |
| p.NOT_FOUND_ERR = 8; |
| p.NOT_SUPPORTED_ERR = 9; |
| p.INUSE_ATTRIBUTE_ERR = 10; |
| p.INVALID_STATE_ERR = 11; |
| p.SYNTAX_ERR = 12; |
| p.INVALID_MODIFICATION_ERR = 13; |
| p.NAMESPACE_ERR = 14; |
| p.INVALID_ACCESS_ERR = 15; |
| p.VALIDATION_ERR = 16; |
| p.TYPE_MISMATCH_ERR = 17; |
| |
| // set up externs |
| G_vmlCanvasManager = G_vmlCanvasManager_; |
| CanvasRenderingContext2D = CanvasRenderingContext2D_; |
| CanvasGradient = CanvasGradient_; |
| CanvasPattern = CanvasPattern_; |
| DOMException = DOMException_; |
| })(); |
| |
| } // if |
