Upgrade graphs to Flotr2
Upgrade graphs to Flotr2

file:b/.gitmodules (new)
--- /dev/null
+++ b/.gitmodules
@@ -1,1 +1,7 @@
+[submodule "js/flotr2"]
+	path = js/flotr2
+	url = https://github.com/HumbleSoftware/Flotr2.git
+[submodule "js/FlashCanvas"]
+	path = js/FlashCanvas
+	url = https://github.com/timcameronryan/FlashCanvas
 

directory:b/js/FlashCanvas (new)
--- /dev/null
+++ b/js/FlashCanvas

file:a/js/flot/excanvas.js (deleted)
--- a/js/flot/excanvas.js
+++ /dev/null
@@ -1,1428 +1,1 @@
-// 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, '&amp;').replace(/"/g, '&quot;');
-  }
-
-  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="');
-