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diff --git a/ui/lib/excanvas.js b/ui/lib/excanvas.js
new file mode 100644
index 00000000000..c40d6f7014d
--- /dev/null
+++ b/ui/lib/excanvas.js
@@ -0,0 +1,1427 @@
+// 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
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(' ' ,
+ '');
+
+ if (!aFill) {
+ appendStroke(this, lineStr);
+ } else {
+ appendFill(this, lineStr, min, max);
+ }
+
+ lineStr.push('');
+
+ 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(
+ '');
+
+ 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(' ');
+
+ 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 = '=1){return"rgb("+[G.r,G.g,G.b].join(",")+")"}else{return"rgba("+[G.r,G.g,G.b,G.a].join(",")+")"}};G.normalize=function(){function H(J,K,I){return KI?I:K)}G.r=H(0,parseInt(G.r),255);G.g=H(0,parseInt(G.g),255);G.b=H(0,parseInt(G.b),255);G.a=H(0,G.a,1);return G};G.clone=function(){return B.color.make(G.r,G.b,G.g,G.a)};return G.normalize()};B.color.extract=function(D,C){var E;do{E=D.css(C).toLowerCase();if(E!=""&&E!="transparent"){break}D=D.parent()}while(!B.nodeName(D.get(0),"body"));if(E=="rgba(0, 0, 0, 0)"){E="transparent"}return B.color.parse(E)};B.color.parse=function(F){var E,C=B.color.make;if(E=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(F)){return C(parseInt(E[1],10),parseInt(E[2],10),parseInt(E[3],10))}if(E=/rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(F)){return C(parseInt(E[1],10),parseInt(E[2],10),parseInt(E[3],10),parseFloat(E[4]))}if(E=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(F)){return C(parseFloat(E[1])*2.55,parseFloat(E[2])*2.55,parseFloat(E[3])*2.55)}if(E=/rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(F)){return C(parseFloat(E[1])*2.55,parseFloat(E[2])*2.55,parseFloat(E[3])*2.55,parseFloat(E[4]))}if(E=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(F)){return C(parseInt(E[1],16),parseInt(E[2],16),parseInt(E[3],16))}if(E=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(F)){return C(parseInt(E[1]+E[1],16),parseInt(E[2]+E[2],16),parseInt(E[3]+E[3],16))}var D=B.trim(F).toLowerCase();if(D=="transparent"){return C(255,255,255,0)}else{E=A[D]||[0,0,0];return C(E[0],E[1],E[2])}};var A={aqua:[0,255,255],azure:[240,255,255],beige:[245,245,220],black:[0,0,0],blue:[0,0,255],brown:[165,42,42],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgrey:[169,169,169],darkgreen:[0,100,0],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkviolet:[148,0,211],fuchsia:[255,0,255],gold:[255,215,0],green:[0,128,0],indigo:[75,0,130],khaki:[240,230,140],lightblue:[173,216,230],lightcyan:[224,255,255],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightyellow:[255,255,224],lime:[0,255,0],magenta:[255,0,255],maroon:[128,0,0],navy:[0,0,128],olive:[128,128,0],orange:[255,165,0],pink:[255,192,203],purple:[128,0,128],violet:[128,0,128],red:[255,0,0],silver:[192,192,192],white:[255,255,255],yellow:[255,255,0]}})(jQuery);
+
+// the actual Flot code
+(function($) {
+ function Plot(placeholder, data_, options_, plugins) {
+ // data is on the form:
+ // [ series1, series2 ... ]
+ // where series is either just the data as [ [x1, y1], [x2, y2], ... ]
+ // or { data: [ [x1, y1], [x2, y2], ... ], label: "some label", ... }
+
+ var series = [],
+ options = {
+ // the color theme used for graphs
+ colors: ["#edc240", "#afd8f8", "#cb4b4b", "#4da74d", "#9440ed"],
+ legend: {
+ show: true,
+ noColumns: 1, // number of colums in legend table
+ labelFormatter: null, // fn: string -> string
+ labelBoxBorderColor: "#ccc", // border color for the little label boxes
+ container: null, // container (as jQuery object) to put legend in, null means default on top of graph
+ position: "ne", // position of default legend container within plot
+ margin: 5, // distance from grid edge to default legend container within plot
+ backgroundColor: null, // null means auto-detect
+ backgroundOpacity: 0.85 // set to 0 to avoid background
+ },
+ xaxis: {
+ show: null, // null = auto-detect, true = always, false = never
+ position: "bottom", // or "top"
+ mode: null, // null or "time"
+ color: null, // base color, labels, ticks
+ tickColor: null, // possibly different color of ticks, e.g. "rgba(0,0,0,0.15)"
+ transform: null, // null or f: number -> number to transform axis
+ inverseTransform: null, // if transform is set, this should be the inverse function
+ min: null, // min. value to show, null means set automatically
+ max: null, // max. value to show, null means set automatically
+ autoscaleMargin: null, // margin in % to add if auto-setting min/max
+ ticks: null, // either [1, 3] or [[1, "a"], 3] or (fn: axis info -> ticks) or app. number of ticks for auto-ticks
+ tickFormatter: null, // fn: number -> string
+ labelWidth: null, // size of tick labels in pixels
+ labelHeight: null,
+ reserveSpace: null, // whether to reserve space even if axis isn't shown
+ tickLength: null, // size in pixels of ticks, or "full" for whole line
+ alignTicksWithAxis: null, // axis number or null for no sync
+
+ // mode specific options
+ tickDecimals: null, // no. of decimals, null means auto
+ tickSize: null, // number or [number, "unit"]
+ minTickSize: null, // number or [number, "unit"]
+ monthNames: null, // list of names of months
+ timeformat: null, // format string to use
+ twelveHourClock: false // 12 or 24 time in time mode
+ },
+ yaxis: {
+ autoscaleMargin: 0.02,
+ position: "left" // or "right"
+ },
+ xaxes: [],
+ yaxes: [],
+ series: {
+ points: {
+ show: false,
+ radius: 3,
+ lineWidth: 2, // in pixels
+ fill: true,
+ fillColor: "#ffffff",
+ symbol: "circle" // or callback
+ },
+ lines: {
+ // we don't put in show: false so we can see
+ // whether lines were actively disabled
+ lineWidth: 2, // in pixels
+ fill: false,
+ fillColor: null,
+ steps: false
+ },
+ bars: {
+ show: false,
+ lineWidth: 2, // in pixels
+ barWidth: 1, // in units of the x axis
+ fill: true,
+ fillColor: null,
+ align: "left", // or "center"
+ horizontal: false
+ },
+ shadowSize: 3
+ },
+ grid: {
+ show: true,
+ aboveData: false,
+ color: "#545454", // primary color used for outline and labels
+ backgroundColor: null, // null for transparent, else color
+ borderColor: null, // set if different from the grid color
+ tickColor: null, // color for the ticks, e.g. "rgba(0,0,0,0.15)"
+ labelMargin: 5, // in pixels
+ axisMargin: 8, // in pixels
+ borderWidth: 2, // in pixels
+ minBorderMargin: null, // in pixels, null means taken from points radius
+ markings: null, // array of ranges or fn: axes -> array of ranges
+ markingsColor: "#f4f4f4",
+ markingsLineWidth: 2,
+ // interactive stuff
+ clickable: false,
+ hoverable: false,
+ autoHighlight: true, // highlight in case mouse is near
+ mouseActiveRadius: 10 // how far the mouse can be away to activate an item
+ },
+ hooks: {}
+ },
+ canvas = null, // the canvas for the plot itself
+ overlay = null, // canvas for interactive stuff on top of plot
+ eventHolder = null, // jQuery object that events should be bound to
+ ctx = null, octx = null,
+ xaxes = [], yaxes = [],
+ plotOffset = { left: 0, right: 0, top: 0, bottom: 0},
+ canvasWidth = 0, canvasHeight = 0,
+ plotWidth = 0, plotHeight = 0,
+ hooks = {
+ processOptions: [],
+ processRawData: [],
+ processDatapoints: [],
+ drawSeries: [],
+ draw: [],
+ bindEvents: [],
+ drawOverlay: [],
+ shutdown: []
+ },
+ plot = this;
+
+ // public functions
+ plot.setData = setData;
+ plot.setupGrid = setupGrid;
+ plot.draw = draw;
+ plot.getPlaceholder = function() { return placeholder; };
+ plot.getCanvas = function() { return canvas; };
+ plot.getPlotOffset = function() { return plotOffset; };
+ plot.width = function () { return plotWidth; };
+ plot.height = function () { return plotHeight; };
+ plot.offset = function () {
+ var o = eventHolder.offset();
+ o.left += plotOffset.left;
+ o.top += plotOffset.top;
+ return o;
+ };
+ plot.getData = function () { return series; };
+ plot.getAxes = function () {
+ var res = {}, i;
+ $.each(xaxes.concat(yaxes), function (_, axis) {
+ if (axis)
+ res[axis.direction + (axis.n != 1 ? axis.n : "") + "axis"] = axis;
+ });
+ return res;
+ };
+ plot.getXAxes = function () { return xaxes; };
+ plot.getYAxes = function () { return yaxes; };
+ plot.c2p = canvasToAxisCoords;
+ plot.p2c = axisToCanvasCoords;
+ plot.getOptions = function () { return options; };
+ plot.highlight = highlight;
+ plot.unhighlight = unhighlight;
+ plot.triggerRedrawOverlay = triggerRedrawOverlay;
+ plot.pointOffset = function(point) {
+ return {
+ left: parseInt(xaxes[axisNumber(point, "x") - 1].p2c(+point.x) + plotOffset.left),
+ top: parseInt(yaxes[axisNumber(point, "y") - 1].p2c(+point.y) + plotOffset.top)
+ };
+ };
+ plot.shutdown = shutdown;
+ plot.resize = function () {
+ getCanvasDimensions();
+ resizeCanvas(canvas);
+ resizeCanvas(overlay);
+ };
+
+ // public attributes
+ plot.hooks = hooks;
+
+ // initialize
+ initPlugins(plot);
+ parseOptions(options_);
+ setupCanvases();
+ setData(data_);
+ setupGrid();
+ draw();
+ bindEvents();
+
+
+ function executeHooks(hook, args) {
+ args = [plot].concat(args);
+ for (var i = 0; i < hook.length; ++i)
+ hook[i].apply(this, args);
+ }
+
+ function initPlugins() {
+ for (var i = 0; i < plugins.length; ++i) {
+ var p = plugins[i];
+ p.init(plot);
+ if (p.options)
+ $.extend(true, options, p.options);
+ }
+ }
+
+ function parseOptions(opts) {
+ var i;
+
+ $.extend(true, options, opts);
+
+ if (options.xaxis.color == null)
+ options.xaxis.color = options.grid.color;
+ if (options.yaxis.color == null)
+ options.yaxis.color = options.grid.color;
+
+ if (options.xaxis.tickColor == null) // backwards-compatibility
+ options.xaxis.tickColor = options.grid.tickColor;
+ if (options.yaxis.tickColor == null) // backwards-compatibility
+ options.yaxis.tickColor = options.grid.tickColor;
+
+ if (options.grid.borderColor == null)
+ options.grid.borderColor = options.grid.color;
+ if (options.grid.tickColor == null)
+ options.grid.tickColor = $.color.parse(options.grid.color).scale('a', 0.22).toString();
+
+ // fill in defaults in axes, copy at least always the
+ // first as the rest of the code assumes it'll be there
+ for (i = 0; i < Math.max(1, options.xaxes.length); ++i)
+ options.xaxes[i] = $.extend(true, {}, options.xaxis, options.xaxes[i]);
+ for (i = 0; i < Math.max(1, options.yaxes.length); ++i)
+ options.yaxes[i] = $.extend(true, {}, options.yaxis, options.yaxes[i]);
+
+ // backwards compatibility, to be removed in future
+ if (options.xaxis.noTicks && options.xaxis.ticks == null)
+ options.xaxis.ticks = options.xaxis.noTicks;
+ if (options.yaxis.noTicks && options.yaxis.ticks == null)
+ options.yaxis.ticks = options.yaxis.noTicks;
+ if (options.x2axis) {
+ options.xaxes[1] = $.extend(true, {}, options.xaxis, options.x2axis);
+ options.xaxes[1].position = "top";
+ }
+ if (options.y2axis) {
+ options.yaxes[1] = $.extend(true, {}, options.yaxis, options.y2axis);
+ options.yaxes[1].position = "right";
+ }
+ if (options.grid.coloredAreas)
+ options.grid.markings = options.grid.coloredAreas;
+ if (options.grid.coloredAreasColor)
+ options.grid.markingsColor = options.grid.coloredAreasColor;
+ if (options.lines)
+ $.extend(true, options.series.lines, options.lines);
+ if (options.points)
+ $.extend(true, options.series.points, options.points);
+ if (options.bars)
+ $.extend(true, options.series.bars, options.bars);
+ if (options.shadowSize != null)
+ options.series.shadowSize = options.shadowSize;
+
+ // save options on axes for future reference
+ for (i = 0; i < options.xaxes.length; ++i)
+ getOrCreateAxis(xaxes, i + 1).options = options.xaxes[i];
+ for (i = 0; i < options.yaxes.length; ++i)
+ getOrCreateAxis(yaxes, i + 1).options = options.yaxes[i];
+
+ // add hooks from options
+ for (var n in hooks)
+ if (options.hooks[n] && options.hooks[n].length)
+ hooks[n] = hooks[n].concat(options.hooks[n]);
+
+ executeHooks(hooks.processOptions, [options]);
+ }
+
+ function setData(d) {
+ series = parseData(d);
+ fillInSeriesOptions();
+ processData();
+ }
+
+ function parseData(d) {
+ var res = [];
+ for (var i = 0; i < d.length; ++i) {
+ var s = $.extend(true, {}, options.series);
+
+ if (d[i].data != null) {
+ s.data = d[i].data; // move the data instead of deep-copy
+ delete d[i].data;
+
+ $.extend(true, s, d[i]);
+
+ d[i].data = s.data;
+ }
+ else
+ s.data = d[i];
+ res.push(s);
+ }
+
+ return res;
+ }
+
+ function axisNumber(obj, coord) {
+ var a = obj[coord + "axis"];
+ if (typeof a == "object") // if we got a real axis, extract number
+ a = a.n;
+ if (typeof a != "number")
+ a = 1; // default to first axis
+ return a;
+ }
+
+ function allAxes() {
+ // return flat array without annoying null entries
+ return $.grep(xaxes.concat(yaxes), function (a) { return a; });
+ }
+
+ function canvasToAxisCoords(pos) {
+ // return an object with x/y corresponding to all used axes
+ var res = {}, i, axis;
+ for (i = 0; i < xaxes.length; ++i) {
+ axis = xaxes[i];
+ if (axis && axis.used)
+ res["x" + axis.n] = axis.c2p(pos.left);
+ }
+
+ for (i = 0; i < yaxes.length; ++i) {
+ axis = yaxes[i];
+ if (axis && axis.used)
+ res["y" + axis.n] = axis.c2p(pos.top);
+ }
+
+ if (res.x1 !== undefined)
+ res.x = res.x1;
+ if (res.y1 !== undefined)
+ res.y = res.y1;
+
+ return res;
+ }
+
+ function axisToCanvasCoords(pos) {
+ // get canvas coords from the first pair of x/y found in pos
+ var res = {}, i, axis, key;
+
+ for (i = 0; i < xaxes.length; ++i) {
+ axis = xaxes[i];
+ if (axis && axis.used) {
+ key = "x" + axis.n;
+ if (pos[key] == null && axis.n == 1)
+ key = "x";
+
+ if (pos[key] != null) {
+ res.left = axis.p2c(pos[key]);
+ break;
+ }
+ }
+ }
+
+ for (i = 0; i < yaxes.length; ++i) {
+ axis = yaxes[i];
+ if (axis && axis.used) {
+ key = "y" + axis.n;
+ if (pos[key] == null && axis.n == 1)
+ key = "y";
+
+ if (pos[key] != null) {
+ res.top = axis.p2c(pos[key]);
+ break;
+ }
+ }
+ }
+
+ return res;
+ }
+
+ function getOrCreateAxis(axes, number) {
+ if (!axes[number - 1])
+ axes[number - 1] = {
+ n: number, // save the number for future reference
+ direction: axes == xaxes ? "x" : "y",
+ options: $.extend(true, {}, axes == xaxes ? options.xaxis : options.yaxis)
+ };
+
+ return axes[number - 1];
+ }
+
+ function fillInSeriesOptions() {
+ var i;
+
+ // collect what we already got of colors
+ var neededColors = series.length,
+ usedColors = [],
+ assignedColors = [];
+ for (i = 0; i < series.length; ++i) {
+ var sc = series[i].color;
+ if (sc != null) {
+ --neededColors;
+ if (typeof sc == "number")
+ assignedColors.push(sc);
+ else
+ usedColors.push($.color.parse(series[i].color));
+ }
+ }
+
+ // we might need to generate more colors if higher indices
+ // are assigned
+ for (i = 0; i < assignedColors.length; ++i) {
+ neededColors = Math.max(neededColors, assignedColors[i] + 1);
+ }
+
+ // produce colors as needed
+ var colors = [], variation = 0;
+ i = 0;
+ while (colors.length < neededColors) {
+ var c;
+ if (options.colors.length == i) // check degenerate case
+ c = $.color.make(100, 100, 100);
+ else
+ c = $.color.parse(options.colors[i]);
+
+ // vary color if needed
+ var sign = variation % 2 == 1 ? -1 : 1;
+ c.scale('rgb', 1 + sign * Math.ceil(variation / 2) * 0.2)
+
+ // FIXME: if we're getting to close to something else,
+ // we should probably skip this one
+ colors.push(c);
+
+ ++i;
+ if (i >= options.colors.length) {
+ i = 0;
+ ++variation;
+ }
+ }
+
+ // fill in the options
+ var colori = 0, s;
+ for (i = 0; i < series.length; ++i) {
+ s = series[i];
+
+ // assign colors
+ if (s.color == null) {
+ s.color = colors[colori].toString();
+ ++colori;
+ }
+ else if (typeof s.color == "number")
+ s.color = colors[s.color].toString();
+
+ // turn on lines automatically in case nothing is set
+ if (s.lines.show == null) {
+ var v, show = true;
+ for (v in s)
+ if (s[v] && s[v].show) {
+ show = false;
+ break;
+ }
+ if (show)
+ s.lines.show = true;
+ }
+
+ // setup axes
+ s.xaxis = getOrCreateAxis(xaxes, axisNumber(s, "x"));
+ s.yaxis = getOrCreateAxis(yaxes, axisNumber(s, "y"));
+ }
+ }
+
+ function processData() {
+ var topSentry = Number.POSITIVE_INFINITY,
+ bottomSentry = Number.NEGATIVE_INFINITY,
+ fakeInfinity = Number.MAX_VALUE,
+ i, j, k, m, length,
+ s, points, ps, x, y, axis, val, f, p;
+
+ function updateAxis(axis, min, max) {
+ if (min < axis.datamin && min != -fakeInfinity)
+ axis.datamin = min;
+ if (max > axis.datamax && max != fakeInfinity)
+ axis.datamax = max;
+ }
+
+ $.each(allAxes(), function (_, axis) {
+ // init axis
+ axis.datamin = topSentry;
+ axis.datamax = bottomSentry;
+ axis.used = false;
+ });
+
+ for (i = 0; i < series.length; ++i) {
+ s = series[i];
+ s.datapoints = { points: [] };
+
+ executeHooks(hooks.processRawData, [ s, s.data, s.datapoints ]);
+ }
+
+ // first pass: clean and copy data
+ for (i = 0; i < series.length; ++i) {
+ s = series[i];
+
+ var data = s.data, format = s.datapoints.format;
+
+ if (!format) {
+ format = [];
+ // find out how to copy
+ format.push({ x: true, number: true, required: true });
+ format.push({ y: true, number: true, required: true });
+
+ if (s.bars.show || (s.lines.show && s.lines.fill)) {
+ format.push({ y: true, number: true, required: false, defaultValue: 0 });
+ if (s.bars.horizontal) {
+ delete format[format.length - 1].y;
+ format[format.length - 1].x = true;
+ }
+ }
+
+ s.datapoints.format = format;
+ }
+
+ if (s.datapoints.pointsize != null)
+ continue; // already filled in
+
+ s.datapoints.pointsize = format.length;
+
+ ps = s.datapoints.pointsize;
+ points = s.datapoints.points;
+
+ insertSteps = s.lines.show && s.lines.steps;
+ s.xaxis.used = s.yaxis.used = true;
+
+ for (j = k = 0; j < data.length; ++j, k += ps) {
+ p = data[j];
+
+ var nullify = p == null;
+ if (!nullify) {
+ for (m = 0; m < ps; ++m) {
+ val = p[m];
+ f = format[m];
+
+ if (f) {
+ if (f.number && val != null) {
+ val = +val; // convert to number
+ if (isNaN(val))
+ val = null;
+ else if (val == Infinity)
+ val = fakeInfinity;
+ else if (val == -Infinity)
+ val = -fakeInfinity;
+ }
+
+ if (val == null) {
+ if (f.required)
+ nullify = true;
+
+ if (f.defaultValue != null)
+ val = f.defaultValue;
+ }
+ }
+
+ points[k + m] = val;
+ }
+ }
+
+ if (nullify) {
+ for (m = 0; m < ps; ++m) {
+ val = points[k + m];
+ if (val != null) {
+ f = format[m];
+ // extract min/max info
+ if (f.x)
+ updateAxis(s.xaxis, val, val);
+ if (f.y)
+ updateAxis(s.yaxis, val, val);
+ }
+ points[k + m] = null;
+ }
+ }
+ else {
+ // a little bit of line specific stuff that
+ // perhaps shouldn't be here, but lacking
+ // better means...
+ if (insertSteps && k > 0
+ && points[k - ps] != null
+ && points[k - ps] != points[k]
+ && points[k - ps + 1] != points[k + 1]) {
+ // copy the point to make room for a middle point
+ for (m = 0; m < ps; ++m)
+ points[k + ps + m] = points[k + m];
+
+ // middle point has same y
+ points[k + 1] = points[k - ps + 1];
+
+ // we've added a point, better reflect that
+ k += ps;
+ }
+ }
+ }
+ }
+
+ // give the hooks a chance to run
+ for (i = 0; i < series.length; ++i) {
+ s = series[i];
+
+ executeHooks(hooks.processDatapoints, [ s, s.datapoints]);
+ }
+
+ // second pass: find datamax/datamin for auto-scaling
+ for (i = 0; i < series.length; ++i) {
+ s = series[i];
+ points = s.datapoints.points,
+ ps = s.datapoints.pointsize;
+
+ var xmin = topSentry, ymin = topSentry,
+ xmax = bottomSentry, ymax = bottomSentry;
+
+ for (j = 0; j < points.length; j += ps) {
+ if (points[j] == null)
+ continue;
+
+ for (m = 0; m < ps; ++m) {
+ val = points[j + m];
+ f = format[m];
+ if (!f || val == fakeInfinity || val == -fakeInfinity)
+ continue;
+
+ if (f.x) {
+ if (val < xmin)
+ xmin = val;
+ if (val > xmax)
+ xmax = val;
+ }
+ if (f.y) {
+ if (val < ymin)
+ ymin = val;
+ if (val > ymax)
+ ymax = val;
+ }
+ }
+ }
+
+ if (s.bars.show) {
+ // make sure we got room for the bar on the dancing floor
+ var delta = s.bars.align == "left" ? 0 : -s.bars.barWidth/2;
+ if (s.bars.horizontal) {
+ ymin += delta;
+ ymax += delta + s.bars.barWidth;
+ }
+ else {
+ xmin += delta;
+ xmax += delta + s.bars.barWidth;
+ }
+ }
+
+ updateAxis(s.xaxis, xmin, xmax);
+ updateAxis(s.yaxis, ymin, ymax);
+ }
+
+ $.each(allAxes(), function (_, axis) {
+ if (axis.datamin == topSentry)
+ axis.datamin = null;
+ if (axis.datamax == bottomSentry)
+ axis.datamax = null;
+ });
+ }
+
+ function makeCanvas(skipPositioning, cls) {
+ var c = document.createElement('canvas');
+ c.className = cls;
+ c.width = canvasWidth;
+ c.height = canvasHeight;
+
+ if (!skipPositioning)
+ $(c).css({ position: 'absolute', left: 0, top: 0 });
+
+ $(c).appendTo(placeholder);
+
+ if (!c.getContext) // excanvas hack
+ c = window.G_vmlCanvasManager.initElement(c);
+
+ // used for resetting in case we get replotted
+ c.getContext("2d").save();
+
+ return c;
+ }
+
+ function getCanvasDimensions() {
+ canvasWidth = placeholder.width();
+ canvasHeight = placeholder.height();
+
+ if (canvasWidth <= 0 || canvasHeight <= 0)
+ throw "Invalid dimensions for plot, width = " + canvasWidth + ", height = " + canvasHeight;
+ }
+
+ function resizeCanvas(c) {
+ // resizing should reset the state (excanvas seems to be
+ // buggy though)
+ if (c.width != canvasWidth)
+ c.width = canvasWidth;
+
+ if (c.height != canvasHeight)
+ c.height = canvasHeight;
+
+ // so try to get back to the initial state (even if it's
+ // gone now, this should be safe according to the spec)
+ var cctx = c.getContext("2d");
+ cctx.restore();
+
+ // and save again
+ cctx.save();
+ }
+
+ function setupCanvases() {
+ var reused,
+ existingCanvas = placeholder.children("canvas.base"),
+ existingOverlay = placeholder.children("canvas.overlay");
+
+ if (existingCanvas.length == 0 || existingOverlay == 0) {
+ // init everything
+
+ placeholder.html(""); // make sure placeholder is clear
+
+ placeholder.css({ padding: 0 }); // padding messes up the positioning
+
+ if (placeholder.css("position") == 'static')
+ placeholder.css("position", "relative"); // for positioning labels and overlay
+
+ getCanvasDimensions();
+
+ canvas = makeCanvas(true, "base");
+ overlay = makeCanvas(false, "overlay"); // overlay canvas for interactive features
+
+ reused = false;
+ }
+ else {
+ // reuse existing elements
+
+ canvas = existingCanvas.get(0);
+ overlay = existingOverlay.get(0);
+
+ reused = true;
+ }
+
+ ctx = canvas.getContext("2d");
+ octx = overlay.getContext("2d");
+
+ // we include the canvas in the event holder too, because IE 7
+ // sometimes has trouble with the stacking order
+ eventHolder = $([overlay, canvas]);
+
+ if (reused) {
+ // run shutdown in the old plot object
+ placeholder.data("plot").shutdown();
+
+ // reset reused canvases
+ plot.resize();
+
+ // make sure overlay pixels are cleared (canvas is cleared when we redraw)
+ octx.clearRect(0, 0, canvasWidth, canvasHeight);
+
+ // then whack any remaining obvious garbage left
+ eventHolder.unbind();
+ placeholder.children().not([canvas, overlay]).remove();
+ }
+
+ // save in case we get replotted
+ placeholder.data("plot", plot);
+ }
+
+ function bindEvents() {
+ // bind events
+ if (options.grid.hoverable) {
+ eventHolder.mousemove(onMouseMove);
+ eventHolder.mouseleave(onMouseLeave);
+ }
+
+ if (options.grid.clickable)
+ eventHolder.click(onClick);
+
+ executeHooks(hooks.bindEvents, [eventHolder]);
+ }
+
+ function shutdown() {
+ if (redrawTimeout)
+ clearTimeout(redrawTimeout);
+
+ eventHolder.unbind("mousemove", onMouseMove);
+ eventHolder.unbind("mouseleave", onMouseLeave);
+ eventHolder.unbind("click", onClick);
+
+ executeHooks(hooks.shutdown, [eventHolder]);
+ }
+
+ function setTransformationHelpers(axis) {
+ // set helper functions on the axis, assumes plot area
+ // has been computed already
+
+ function identity(x) { return x; }
+
+ var s, m, t = axis.options.transform || identity,
+ it = axis.options.inverseTransform;
+
+ // precompute how much the axis is scaling a point
+ // in canvas space
+ if (axis.direction == "x") {
+ s = axis.scale = plotWidth / Math.abs(t(axis.max) - t(axis.min));
+ m = Math.min(t(axis.max), t(axis.min));
+ }
+ else {
+ s = axis.scale = plotHeight / Math.abs(t(axis.max) - t(axis.min));
+ s = -s;
+ m = Math.max(t(axis.max), t(axis.min));
+ }
+
+ // data point to canvas coordinate
+ if (t == identity) // slight optimization
+ axis.p2c = function (p) { return (p - m) * s; };
+ else
+ axis.p2c = function (p) { return (t(p) - m) * s; };
+ // canvas coordinate to data point
+ if (!it)
+ axis.c2p = function (c) { return m + c / s; };
+ else
+ axis.c2p = function (c) { return it(m + c / s); };
+ }
+
+ function measureTickLabels(axis) {
+ var opts = axis.options, i, ticks = axis.ticks || [], labels = [],
+ l, w = opts.labelWidth, h = opts.labelHeight, dummyDiv;
+
+ function makeDummyDiv(labels, width) {
+ return $('' +
+ '
'
+ + labels.join("") + '
' + l + '
');
+ }
+
+ if (labels.length > 0) {
+ // stick them all in the same div and measure
+ // collective height
+ labels.push('
');
+ dummyDiv = makeDummyDiv(labels, "width:10000px;");
+ h = dummyDiv.height();
+ dummyDiv.remove();
+ }
+ }
+ }
+ else if (w == null || h == null) {
+ // calculate y label dimensions
+ for (i = 0; i < ticks.length; ++i) {
+ l = ticks[i].label;
+ if (l)
+ labels.push('' + l + '
');
+ }
+
+ if (labels.length > 0) {
+ dummyDiv = makeDummyDiv(labels, "");
+ if (w == null)
+ w = dummyDiv.children().width();
+ if (h == null)
+ h = dummyDiv.find("div.tickLabel").height();
+ dummyDiv.remove();
+ }
+ }
+
+ if (w == null)
+ w = 0;
+ if (h == null)
+ h = 0;
+
+ axis.labelWidth = w;
+ axis.labelHeight = h;
+ }
+
+ function allocateAxisBoxFirstPhase(axis) {
+ // find the bounding box of the axis by looking at label
+ // widths/heights and ticks, make room by diminishing the
+ // plotOffset
+
+ var lw = axis.labelWidth,
+ lh = axis.labelHeight,
+ pos = axis.options.position,
+ tickLength = axis.options.tickLength,
+ axismargin = options.grid.axisMargin,
+ padding = options.grid.labelMargin,
+ all = axis.direction == "x" ? xaxes : yaxes,
+ index;
+
+ // determine axis margin
+ var samePosition = $.grep(all, function (a) {
+ return a && a.options.position == pos && a.reserveSpace;
+ });
+ if ($.inArray(axis, samePosition) == samePosition.length - 1)
+ axismargin = 0; // outermost
+
+ // determine tick length - if we're innermost, we can use "full"
+ if (tickLength == null)
+ tickLength = "full";
+
+ var sameDirection = $.grep(all, function (a) {
+ return a && a.reserveSpace;
+ });
+
+ var innermost = $.inArray(axis, sameDirection) == 0;
+ if (!innermost && tickLength == "full")
+ tickLength = 5;
+
+ if (!isNaN(+tickLength))
+ padding += +tickLength;
+
+ // compute box
+ if (axis.direction == "x") {
+ lh += padding;
+
+ if (pos == "bottom") {
+ plotOffset.bottom += lh + axismargin;
+ axis.box = { top: canvasHeight - plotOffset.bottom, height: lh };
+ }
+ else {
+ axis.box = { top: plotOffset.top + axismargin, height: lh };
+ plotOffset.top += lh + axismargin;
+ }
+ }
+ else {
+ lw += padding;
+
+ if (pos == "left") {
+ axis.box = { left: plotOffset.left + axismargin, width: lw };
+ plotOffset.left += lw + axismargin;
+ }
+ else {
+ plotOffset.right += lw + axismargin;
+ axis.box = { left: canvasWidth - plotOffset.right, width: lw };
+ }
+ }
+
+ // save for future reference
+ axis.position = pos;
+ axis.tickLength = tickLength;
+ axis.box.padding = padding;
+ axis.innermost = innermost;
+ }
+
+ function allocateAxisBoxSecondPhase(axis) {
+ // set remaining bounding box coordinates
+ if (axis.direction == "x") {
+ axis.box.left = plotOffset.left;
+ axis.box.width = plotWidth;
+ }
+ else {
+ axis.box.top = plotOffset.top;
+ axis.box.height = plotHeight;
+ }
+ }
+
+ function setupGrid() {
+ var i, axes = allAxes();
+
+ // first calculate the plot and axis box dimensions
+
+ $.each(axes, function (_, axis) {
+ axis.show = axis.options.show;
+ if (axis.show == null)
+ axis.show = axis.used; // by default an axis is visible if it's got data
+
+ axis.reserveSpace = axis.show || axis.options.reserveSpace;
+
+ setRange(axis);
+ });
+
+ allocatedAxes = $.grep(axes, function (axis) { return axis.reserveSpace; });
+
+ plotOffset.left = plotOffset.right = plotOffset.top = plotOffset.bottom = 0;
+ if (options.grid.show) {
+ $.each(allocatedAxes, function (_, axis) {
+ // make the ticks
+ setupTickGeneration(axis);
+ setTicks(axis);
+ snapRangeToTicks(axis, axis.ticks);
+
+ // find labelWidth/Height for axis
+ measureTickLabels(axis);
+ });
+
+ // with all dimensions in house, we can compute the
+ // axis boxes, start from the outside (reverse order)
+ for (i = allocatedAxes.length - 1; i >= 0; --i)
+ allocateAxisBoxFirstPhase(allocatedAxes[i]);
+
+ // make sure we've got enough space for things that
+ // might stick out
+ var minMargin = options.grid.minBorderMargin;
+ if (minMargin == null) {
+ minMargin = 0;
+ for (i = 0; i < series.length; ++i)
+ minMargin = Math.max(minMargin, series[i].points.radius + series[i].points.lineWidth/2);
+ }
+
+ for (var a in plotOffset) {
+ plotOffset[a] += options.grid.borderWidth;
+ plotOffset[a] = Math.max(minMargin, plotOffset[a]);
+ }
+ }
+
+ plotWidth = canvasWidth - plotOffset.left - plotOffset.right;
+ plotHeight = canvasHeight - plotOffset.bottom - plotOffset.top;
+
+ // now we got the proper plotWidth/Height, we can compute the scaling
+ $.each(axes, function (_, axis) {
+ setTransformationHelpers(axis);
+ });
+
+ if (options.grid.show) {
+ $.each(allocatedAxes, function (_, axis) {
+ allocateAxisBoxSecondPhase(axis);
+ });
+
+ insertAxisLabels();
+ }
+
+ insertLegend();
+ }
+
+ function setRange(axis) {
+ var opts = axis.options,
+ min = +(opts.min != null ? opts.min : axis.datamin),
+ max = +(opts.max != null ? opts.max : axis.datamax),
+ delta = max - min;
+
+ if (delta == 0.0) {
+ // degenerate case
+ var widen = max == 0 ? 1 : 0.01;
+
+ if (opts.min == null)
+ min -= widen;
+ // always widen max if we couldn't widen min to ensure we
+ // don't fall into min == max which doesn't work
+ if (opts.max == null || opts.min != null)
+ max += widen;
+ }
+ else {
+ // consider autoscaling
+ var margin = opts.autoscaleMargin;
+ if (margin != null) {
+ if (opts.min == null) {
+ min -= delta * margin;
+ // make sure we don't go below zero if all values
+ // are positive
+ if (min < 0 && axis.datamin != null && axis.datamin >= 0)
+ min = 0;
+ }
+ if (opts.max == null) {
+ max += delta * margin;
+ if (max > 0 && axis.datamax != null && axis.datamax <= 0)
+ max = 0;
+ }
+ }
+ }
+ axis.min = min;
+ axis.max = max;
+ }
+
+ function setupTickGeneration(axis) {
+ var opts = axis.options;
+
+ // estimate number of ticks
+ var noTicks;
+ if (typeof opts.ticks == "number" && opts.ticks > 0)
+ noTicks = opts.ticks;
+ else
+ // heuristic based on the model a*sqrt(x) fitted to
+ // some data points that seemed reasonable
+ noTicks = 0.3 * Math.sqrt(axis.direction == "x" ? canvasWidth : canvasHeight);
+
+ var delta = (axis.max - axis.min) / noTicks,
+ size, generator, unit, formatter, i, magn, norm;
+
+ if (opts.mode == "time") {
+ // pretty handling of time
+
+ // map of app. size of time units in milliseconds
+ var timeUnitSize = {
+ "second": 1000,
+ "minute": 60 * 1000,
+ "hour": 60 * 60 * 1000,
+ "day": 24 * 60 * 60 * 1000,
+ "month": 30 * 24 * 60 * 60 * 1000,
+ "year": 365.2425 * 24 * 60 * 60 * 1000
+ };
+
+
+ // the allowed tick sizes, after 1 year we use
+ // an integer algorithm
+ var spec = [
+ [1, "second"], [2, "second"], [5, "second"], [10, "second"],
+ [30, "second"],
+ [1, "minute"], [2, "minute"], [5, "minute"], [10, "minute"],
+ [30, "minute"],
+ [1, "hour"], [2, "hour"], [4, "hour"],
+ [8, "hour"], [12, "hour"],
+ [1, "day"], [2, "day"], [3, "day"],
+ [0.25, "month"], [0.5, "month"], [1, "month"],
+ [2, "month"], [3, "month"], [6, "month"],
+ [1, "year"]
+ ];
+
+ var minSize = 0;
+ if (opts.minTickSize != null) {
+ if (typeof opts.tickSize == "number")
+ minSize = opts.tickSize;
+ else
+ minSize = opts.minTickSize[0] * timeUnitSize[opts.minTickSize[1]];
+ }
+
+ for (var i = 0; i < spec.length - 1; ++i)
+ if (delta < (spec[i][0] * timeUnitSize[spec[i][1]]
+ + spec[i + 1][0] * timeUnitSize[spec[i + 1][1]]) / 2
+ && spec[i][0] * timeUnitSize[spec[i][1]] >= minSize)
+ break;
+ size = spec[i][0];
+ unit = spec[i][1];
+
+ // special-case the possibility of several years
+ if (unit == "year") {
+ magn = Math.pow(10, Math.floor(Math.log(delta / timeUnitSize.year) / Math.LN10));
+ norm = (delta / timeUnitSize.year) / magn;
+ if (norm < 1.5)
+ size = 1;
+ else if (norm < 3)
+ size = 2;
+ else if (norm < 7.5)
+ size = 5;
+ else
+ size = 10;
+
+ size *= magn;
+ }
+
+ axis.tickSize = opts.tickSize || [size, unit];
+
+ generator = function(axis) {
+ var ticks = [],
+ tickSize = axis.tickSize[0], unit = axis.tickSize[1],
+ d = new Date(axis.min);
+
+ var step = tickSize * timeUnitSize[unit];
+
+ if (unit == "second")
+ d.setUTCSeconds(floorInBase(d.getUTCSeconds(), tickSize));
+ if (unit == "minute")
+ d.setUTCMinutes(floorInBase(d.getUTCMinutes(), tickSize));
+ if (unit == "hour")
+ d.setUTCHours(floorInBase(d.getUTCHours(), tickSize));
+ if (unit == "month")
+ d.setUTCMonth(floorInBase(d.getUTCMonth(), tickSize));
+ if (unit == "year")
+ d.setUTCFullYear(floorInBase(d.getUTCFullYear(), tickSize));
+
+ // reset smaller components
+ d.setUTCMilliseconds(0);
+ if (step >= timeUnitSize.minute)
+ d.setUTCSeconds(0);
+ if (step >= timeUnitSize.hour)
+ d.setUTCMinutes(0);
+ if (step >= timeUnitSize.day)
+ d.setUTCHours(0);
+ if (step >= timeUnitSize.day * 4)
+ d.setUTCDate(1);
+ if (step >= timeUnitSize.year)
+ d.setUTCMonth(0);
+
+
+ var carry = 0, v = Number.NaN, prev;
+ do {
+ prev = v;
+ v = d.getTime();
+ ticks.push(v);
+ if (unit == "month") {
+ if (tickSize < 1) {
+ // a bit complicated - we'll divide the month
+ // up but we need to take care of fractions
+ // so we don't end up in the middle of a day
+ d.setUTCDate(1);
+ var start = d.getTime();
+ d.setUTCMonth(d.getUTCMonth() + 1);
+ var end = d.getTime();
+ d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize);
+ carry = d.getUTCHours();
+ d.setUTCHours(0);
+ }
+ else
+ d.setUTCMonth(d.getUTCMonth() + tickSize);
+ }
+ else if (unit == "year") {
+ d.setUTCFullYear(d.getUTCFullYear() + tickSize);
+ }
+ else
+ d.setTime(v + step);
+ } while (v < axis.max && v != prev);
+
+ return ticks;
+ };
+
+ formatter = function (v, axis) {
+ var d = new Date(v);
+
+ // first check global format
+ if (opts.timeformat != null)
+ return $.plot.formatDate(d, opts.timeformat, opts.monthNames);
+
+ var t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]];
+ var span = axis.max - axis.min;
+ var suffix = (opts.twelveHourClock) ? " %p" : "";
+
+ if (t < timeUnitSize.minute)
+ fmt = "%h:%M:%S" + suffix;
+ else if (t < timeUnitSize.day) {
+ if (span < 2 * timeUnitSize.day)
+ fmt = "%h:%M" + suffix;
+ else
+ fmt = "%b %d %h:%M" + suffix;
+ }
+ else if (t < timeUnitSize.month)
+ fmt = "%b %d";
+ else if (t < timeUnitSize.year) {
+ if (span < timeUnitSize.year)
+ fmt = "%b";
+ else
+ fmt = "%b %y";
+ }
+ else
+ fmt = "%y";
+
+ return $.plot.formatDate(d, fmt, opts.monthNames);
+ };
+ }
+ else {
+ // pretty rounding of base-10 numbers
+ var maxDec = opts.tickDecimals;
+ var dec = -Math.floor(Math.log(delta) / Math.LN10);
+ if (maxDec != null && dec > maxDec)
+ dec = maxDec;
+
+ magn = Math.pow(10, -dec);
+ norm = delta / magn; // norm is between 1.0 and 10.0
+
+ if (norm < 1.5)
+ size = 1;
+ else if (norm < 3) {
+ size = 2;
+ // special case for 2.5, requires an extra decimal
+ if (norm > 2.25 && (maxDec == null || dec + 1 <= maxDec)) {
+ size = 2.5;
+ ++dec;
+ }
+ }
+ else if (norm < 7.5)
+ size = 5;
+ else
+ size = 10;
+
+ size *= magn;
+
+ if (opts.minTickSize != null && size < opts.minTickSize)
+ size = opts.minTickSize;
+
+ axis.tickDecimals = Math.max(0, maxDec != null ? maxDec : dec);
+ axis.tickSize = opts.tickSize || size;
+
+ generator = function (axis) {
+ var ticks = [];
+
+ // spew out all possible ticks
+ var start = floorInBase(axis.min, axis.tickSize),
+ i = 0, v = Number.NaN, prev;
+ do {
+ prev = v;
+ v = start + i * axis.tickSize;
+ ticks.push(v);
+ ++i;
+ } while (v < axis.max && v != prev);
+ return ticks;
+ };
+
+ formatter = function (v, axis) {
+ return v.toFixed(axis.tickDecimals);
+ };
+ }
+
+ if (opts.alignTicksWithAxis != null) {
+ var otherAxis = (axis.direction == "x" ? xaxes : yaxes)[opts.alignTicksWithAxis - 1];
+ if (otherAxis && otherAxis.used && otherAxis != axis) {
+ // consider snapping min/max to outermost nice ticks
+ var niceTicks = generator(axis);
+ if (niceTicks.length > 0) {
+ if (opts.min == null)
+ axis.min = Math.min(axis.min, niceTicks[0]);
+ if (opts.max == null && niceTicks.length > 1)
+ axis.max = Math.max(axis.max, niceTicks[niceTicks.length - 1]);
+ }
+
+ generator = function (axis) {
+ // copy ticks, scaled to this axis
+ var ticks = [], v, i;
+ for (i = 0; i < otherAxis.ticks.length; ++i) {
+ v = (otherAxis.ticks[i].v - otherAxis.min) / (otherAxis.max - otherAxis.min);
+ v = axis.min + v * (axis.max - axis.min);
+ ticks.push(v);
+ }
+ return ticks;
+ };
+
+ // we might need an extra decimal since forced
+ // ticks don't necessarily fit naturally
+ if (axis.mode != "time" && opts.tickDecimals == null) {
+ var extraDec = Math.max(0, -Math.floor(Math.log(delta) / Math.LN10) + 1),
+ ts = generator(axis);
+
+ // only proceed if the tick interval rounded
+ // with an extra decimal doesn't give us a
+ // zero at end
+ if (!(ts.length > 1 && /\..*0$/.test((ts[1] - ts[0]).toFixed(extraDec))))
+ axis.tickDecimals = extraDec;
+ }
+ }
+ }
+
+ axis.tickGenerator = generator;
+ if ($.isFunction(opts.tickFormatter))
+ axis.tickFormatter = function (v, axis) { return "" + opts.tickFormatter(v, axis); };
+ else
+ axis.tickFormatter = formatter;
+ }
+
+ function setTicks(axis) {
+ var oticks = axis.options.ticks, ticks = [];
+ if (oticks == null || (typeof oticks == "number" && oticks > 0))
+ ticks = axis.tickGenerator(axis);
+ else if (oticks) {
+ if ($.isFunction(oticks))
+ // generate the ticks
+ ticks = oticks({ min: axis.min, max: axis.max });
+ else
+ ticks = oticks;
+ }
+
+ // clean up/labelify the supplied ticks, copy them over
+ var i, v;
+ axis.ticks = [];
+ for (i = 0; i < ticks.length; ++i) {
+ var label = null;
+ var t = ticks[i];
+ if (typeof t == "object") {
+ v = +t[0];
+ if (t.length > 1)
+ label = t[1];
+ }
+ else
+ v = +t;
+ if (label == null)
+ label = axis.tickFormatter(v, axis);
+ if (!isNaN(v))
+ axis.ticks.push({ v: v, label: label });
+ }
+ }
+
+ function snapRangeToTicks(axis, ticks) {
+ if (axis.options.autoscaleMargin && ticks.length > 0) {
+ // snap to ticks
+ if (axis.options.min == null)
+ axis.min = Math.min(axis.min, ticks[0].v);
+ if (axis.options.max == null && ticks.length > 1)
+ axis.max = Math.max(axis.max, ticks[ticks.length - 1].v);
+ }
+ }
+
+ function draw() {
+ ctx.clearRect(0, 0, canvasWidth, canvasHeight);
+
+ var grid = options.grid;
+
+ // draw background, if any
+ if (grid.show && grid.backgroundColor)
+ drawBackground();
+
+ if (grid.show && !grid.aboveData)
+ drawGrid();
+
+ for (var i = 0; i < series.length; ++i) {
+ executeHooks(hooks.drawSeries, [ctx, series[i]]);
+ drawSeries(series[i]);
+ }
+
+ executeHooks(hooks.draw, [ctx]);
+
+ if (grid.show && grid.aboveData)
+ drawGrid();
+ }
+
+ function extractRange(ranges, coord) {
+ var axis, from, to, key, axes = allAxes();
+
+ for (i = 0; i < axes.length; ++i) {
+ axis = axes[i];
+ if (axis.direction == coord) {
+ key = coord + axis.n + "axis";
+ if (!ranges[key] && axis.n == 1)
+ key = coord + "axis"; // support x1axis as xaxis
+ if (ranges[key]) {
+ from = ranges[key].from;
+ to = ranges[key].to;
+ break;
+ }
+ }
+ }
+
+ // backwards-compat stuff - to be removed in future
+ if (!ranges[key]) {
+ axis = coord == "x" ? xaxes[0] : yaxes[0];
+ from = ranges[coord + "1"];
+ to = ranges[coord + "2"];
+ }
+
+ // auto-reverse as an added bonus
+ if (from != null && to != null && from > to) {
+ var tmp = from;
+ from = to;
+ to = tmp;
+ }
+
+ return { from: from, to: to, axis: axis };
+ }
+
+ function drawBackground() {
+ ctx.save();
+ ctx.translate(plotOffset.left, plotOffset.top);
+
+ ctx.fillStyle = getColorOrGradient(options.grid.backgroundColor, plotHeight, 0, "rgba(255, 255, 255, 0)");
+ ctx.fillRect(0, 0, plotWidth, plotHeight);
+ ctx.restore();
+ }
+
+ function drawGrid() {
+ var i;
+
+ ctx.save();
+ ctx.translate(plotOffset.left, plotOffset.top);
+
+ // draw markings
+ var markings = options.grid.markings;
+ if (markings) {
+ if ($.isFunction(markings)) {
+ var axes = plot.getAxes();
+ // xmin etc. is backwards compatibility, to be
+ // removed in the future
+ axes.xmin = axes.xaxis.min;
+ axes.xmax = axes.xaxis.max;
+ axes.ymin = axes.yaxis.min;
+ axes.ymax = axes.yaxis.max;
+
+ markings = markings(axes);
+ }
+
+ for (i = 0; i < markings.length; ++i) {
+ var m = markings[i],
+ xrange = extractRange(m, "x"),
+ yrange = extractRange(m, "y");
+
+ // fill in missing
+ if (xrange.from == null)
+ xrange.from = xrange.axis.min;
+ if (xrange.to == null)
+ xrange.to = xrange.axis.max;
+ if (yrange.from == null)
+ yrange.from = yrange.axis.min;
+ if (yrange.to == null)
+ yrange.to = yrange.axis.max;
+
+ // clip
+ if (xrange.to < xrange.axis.min || xrange.from > xrange.axis.max ||
+ yrange.to < yrange.axis.min || yrange.from > yrange.axis.max)
+ continue;
+
+ xrange.from = Math.max(xrange.from, xrange.axis.min);
+ xrange.to = Math.min(xrange.to, xrange.axis.max);
+ yrange.from = Math.max(yrange.from, yrange.axis.min);
+ yrange.to = Math.min(yrange.to, yrange.axis.max);
+
+ if (xrange.from == xrange.to && yrange.from == yrange.to)
+ continue;
+
+ // then draw
+ xrange.from = xrange.axis.p2c(xrange.from);
+ xrange.to = xrange.axis.p2c(xrange.to);
+ yrange.from = yrange.axis.p2c(yrange.from);
+ yrange.to = yrange.axis.p2c(yrange.to);
+
+ if (xrange.from == xrange.to || yrange.from == yrange.to) {
+ // draw line
+ ctx.beginPath();
+ ctx.strokeStyle = m.color || options.grid.markingsColor;
+ ctx.lineWidth = m.lineWidth || options.grid.markingsLineWidth;
+ ctx.moveTo(xrange.from, yrange.from);
+ ctx.lineTo(xrange.to, yrange.to);
+ ctx.stroke();
+ }
+ else {
+ // fill area
+ ctx.fillStyle = m.color || options.grid.markingsColor;
+ ctx.fillRect(xrange.from, yrange.to,
+ xrange.to - xrange.from,
+ yrange.from - yrange.to);
+ }
+ }
+ }
+
+ // draw the ticks
+ var axes = allAxes(), bw = options.grid.borderWidth;
+
+ for (var j = 0; j < axes.length; ++j) {
+ var axis = axes[j], box = axis.box,
+ t = axis.tickLength, x, y, xoff, yoff;
+ if (!axis.show || axis.ticks.length == 0)
+ continue
+
+ ctx.strokeStyle = axis.options.tickColor || $.color.parse(axis.options.color).scale('a', 0.22).toString();
+ ctx.lineWidth = 1;
+
+ // find the edges
+ if (axis.direction == "x") {
+ x = 0;
+ if (t == "full")
+ y = (axis.position == "top" ? 0 : plotHeight);
+ else
+ y = box.top - plotOffset.top + (axis.position == "top" ? box.height : 0);
+ }
+ else {
+ y = 0;
+ if (t == "full")
+ x = (axis.position == "left" ? 0 : plotWidth);
+ else
+ x = box.left - plotOffset.left + (axis.position == "left" ? box.width : 0);
+ }
+
+ // draw tick bar
+ if (!axis.innermost) {
+ ctx.beginPath();
+ xoff = yoff = 0;
+ if (axis.direction == "x")
+ xoff = plotWidth;
+ else
+ yoff = plotHeight;
+
+ if (ctx.lineWidth == 1) {
+ x = Math.floor(x) + 0.5;
+ y = Math.floor(y) + 0.5;
+ }
+
+ ctx.moveTo(x, y);
+ ctx.lineTo(x + xoff, y + yoff);
+ ctx.stroke();
+ }
+
+ // draw ticks
+ ctx.beginPath();
+ for (i = 0; i < axis.ticks.length; ++i) {
+ var v = axis.ticks[i].v;
+
+ xoff = yoff = 0;
+
+ if (v < axis.min || v > axis.max
+ // skip those lying on the axes if we got a border
+ || (t == "full" && bw > 0
+ && (v == axis.min || v == axis.max)))
+ continue;
+
+ if (axis.direction == "x") {
+ x = axis.p2c(v);
+ yoff = t == "full" ? -plotHeight : t;
+
+ if (axis.position == "top")
+ yoff = -yoff;
+ }
+ else {
+ y = axis.p2c(v);
+ xoff = t == "full" ? -plotWidth : t;
+
+ if (axis.position == "left")
+ xoff = -xoff;
+ }
+
+ if (ctx.lineWidth == 1) {
+ if (axis.direction == "x")
+ x = Math.floor(x) + 0.5;
+ else
+ y = Math.floor(y) + 0.5;
+ }
+
+ ctx.moveTo(x, y);
+ ctx.lineTo(x + xoff, y + yoff);
+ }
+
+ ctx.stroke();
+ }
+
+
+ // draw border
+ if (bw) {
+ ctx.lineWidth = bw;
+ ctx.strokeStyle = options.grid.borderColor;
+ ctx.strokeRect(-bw/2, -bw/2, plotWidth + bw, plotHeight + bw);
+ }
+
+ ctx.restore();
+ }
+
+ function insertAxisLabels() {
+ placeholder.find(".tickLabels").remove();
+
+ var html = [''];
+
+ var axes = allAxes();
+ for (var j = 0; j < axes.length; ++j) {
+ var axis = axes[j], box = axis.box;
+ if (!axis.show)
+ continue;
+ //debug: html.push('
')
+ html.push('
');
+ for (var i = 0; i < axis.ticks.length; ++i) {
+ var tick = axis.ticks[i];
+ if (!tick.label || tick.v < axis.min || tick.v > axis.max)
+ continue;
+
+ var pos = {}, align;
+
+ if (axis.direction == "x") {
+ align = "center";
+ pos.left = Math.round(plotOffset.left + axis.p2c(tick.v) - axis.labelWidth/2);
+ if (axis.position == "bottom")
+ pos.top = box.top + box.padding;
+ else
+ pos.bottom = canvasHeight - (box.top + box.height - box.padding);
+ }
+ else {
+ pos.top = Math.round(plotOffset.top + axis.p2c(tick.v) - axis.labelHeight/2);
+ if (axis.position == "left") {
+ pos.right = canvasWidth - (box.left + box.width - box.padding)
+ align = "right";
+ }
+ else {
+ pos.left = box.left + box.padding;
+ align = "left";
+ }
+ }
+
+ pos.width = axis.labelWidth;
+
+ var style = ["position:absolute", "text-align:" + align ];
+ for (var a in pos)
+ style.push(a + ":" + pos[a] + "px")
+
+ html.push('
' + tick.label + '
');
+ }
+ html.push('
');
+ }
+
+ html.push('
');
+ rowStarted = true;
+ }
+
+ if (lf)
+ label = lf(label, s);
+
+ fragments.push(
+ '' + label + ' ');
+ }
+ if (rowStarted)
+ fragments.push(' ');
+
+ if (fragments.length == 0)
+ return;
+
+ var table = '' + fragments.join("") + '
';
+ if (options.legend.container != null)
+ $(options.legend.container).html(table);
+ else {
+ var pos = "",
+ p = options.legend.position,
+ m = options.legend.margin;
+ if (m[0] == null)
+ m = [m, m];
+ if (p.charAt(0) == "n")
+ pos += 'top:' + (m[1] + plotOffset.top) + 'px;';
+ else if (p.charAt(0) == "s")
+ pos += 'bottom:' + (m[1] + plotOffset.bottom) + 'px;';
+ if (p.charAt(1) == "e")
+ pos += 'right:' + (m[0] + plotOffset.right) + 'px;';
+ else if (p.charAt(1) == "w")
+ pos += 'left:' + (m[0] + plotOffset.left) + 'px;';
+ var legend = $('' + table.replace('style="', 'style="position:absolute;' + pos +';') + '
').appendTo(placeholder);
+ if (options.legend.backgroundOpacity != 0.0) {
+ // put in the transparent background
+ // separately to avoid blended labels and
+ // label boxes
+ var c = options.legend.backgroundColor;
+ if (c == null) {
+ c = options.grid.backgroundColor;
+ if (c && typeof c == "string")
+ c = $.color.parse(c);
+ else
+ c = $.color.extract(legend, 'background-color');
+ c.a = 1;
+ c = c.toString();
+ }
+ var div = legend.children();
+ $('
').prependTo(legend).css('opacity', options.legend.backgroundOpacity);
+ }
+ }
+ }
+
+
+ // interactive features
+
+ var highlights = [],
+ redrawTimeout = null;
+
+ // returns the data item the mouse is over, or null if none is found
+ function findNearbyItem(mouseX, mouseY, seriesFilter) {
+ var maxDistance = options.grid.mouseActiveRadius,
+ smallestDistance = maxDistance * maxDistance + 1,
+ item = null, foundPoint = false, i, j;
+
+ for (i = series.length - 1; i >= 0; --i) {
+ if (!seriesFilter(series[i]))
+ continue;
+
+ var s = series[i],
+ axisx = s.xaxis,
+ axisy = s.yaxis,
+ points = s.datapoints.points,
+ ps = s.datapoints.pointsize,
+ mx = axisx.c2p(mouseX), // precompute some stuff to make the loop faster
+ my = axisy.c2p(mouseY),
+ maxx = maxDistance / axisx.scale,
+ maxy = maxDistance / axisy.scale;
+
+ // with inverse transforms, we can't use the maxx/maxy
+ // optimization, sadly
+ if (axisx.options.inverseTransform)
+ maxx = Number.MAX_VALUE;
+ if (axisy.options.inverseTransform)
+ maxy = Number.MAX_VALUE;
+
+ if (s.lines.show || s.points.show) {
+ for (j = 0; j < points.length; j += ps) {
+ var x = points[j], y = points[j + 1];
+ if (x == null)
+ continue;
+
+ // For points and lines, the cursor must be within a
+ // certain distance to the data point
+ if (x - mx > maxx || x - mx < -maxx ||
+ y - my > maxy || y - my < -maxy)
+ continue;
+
+ // We have to calculate distances in pixels, not in
+ // data units, because the scales of the axes may be different
+ var dx = Math.abs(axisx.p2c(x) - mouseX),
+ dy = Math.abs(axisy.p2c(y) - mouseY),
+ dist = dx * dx + dy * dy; // we save the sqrt
+
+ // use <= to ensure last point takes precedence
+ // (last generally means on top of)
+ if (dist < smallestDistance) {
+ smallestDistance = dist;
+ item = [i, j / ps];
+ }
+ }
+ }
+
+ if (s.bars.show && !item) { // no other point can be nearby
+ var barLeft = s.bars.align == "left" ? 0 : -s.bars.barWidth/2,
+ barRight = barLeft + s.bars.barWidth;
+
+ for (j = 0; j < points.length; j += ps) {
+ var x = points[j], y = points[j + 1], b = points[j + 2];
+ if (x == null)
+ continue;
+
+ // for a bar graph, the cursor must be inside the bar
+ if (series[i].bars.horizontal ?
+ (mx <= Math.max(b, x) && mx >= Math.min(b, x) &&
+ my >= y + barLeft && my <= y + barRight) :
+ (mx >= x + barLeft && mx <= x + barRight &&
+ my >= Math.min(b, y) && my <= Math.max(b, y)))
+ item = [i, j / ps];
+ }
+ }
+ }
+
+ if (item) {
+ i = item[0];
+ j = item[1];
+ ps = series[i].datapoints.pointsize;
+
+ return { datapoint: series[i].datapoints.points.slice(j * ps, (j + 1) * ps),
+ dataIndex: j,
+ series: series[i],
+ seriesIndex: i };
+ }
+
+ return null;
+ }
+
+ function onMouseMove(e) {
+ if (options.grid.hoverable)
+ triggerClickHoverEvent("plothover", e,
+ function (s) { return s["hoverable"] != false; });
+ }
+
+ function onMouseLeave(e) {
+ if (options.grid.hoverable)
+ triggerClickHoverEvent("plothover", e,
+ function (s) { return false; });
+ }
+
+ function onClick(e) {
+ triggerClickHoverEvent("plotclick", e,
+ function (s) { return s["clickable"] != false; });
+ }
+
+ // trigger click or hover event (they send the same parameters
+ // so we share their code)
+ function triggerClickHoverEvent(eventname, event, seriesFilter) {
+ var offset = eventHolder.offset(),
+ canvasX = event.pageX - offset.left - plotOffset.left,
+ canvasY = event.pageY - offset.top - plotOffset.top,
+ pos = canvasToAxisCoords({ left: canvasX, top: canvasY });
+
+ pos.pageX = event.pageX;
+ pos.pageY = event.pageY;
+
+ var item = findNearbyItem(canvasX, canvasY, seriesFilter);
+
+ if (item) {
+ // fill in mouse pos for any listeners out there
+ item.pageX = parseInt(item.series.xaxis.p2c(item.datapoint[0]) + offset.left + plotOffset.left);
+ item.pageY = parseInt(item.series.yaxis.p2c(item.datapoint[1]) + offset.top + plotOffset.top);
+ }
+
+ if (options.grid.autoHighlight) {
+ // clear auto-highlights
+ for (var i = 0; i < highlights.length; ++i) {
+ var h = highlights[i];
+ if (h.auto == eventname &&
+ !(item && h.series == item.series &&
+ h.point[0] == item.datapoint[0] &&
+ h.point[1] == item.datapoint[1]))
+ unhighlight(h.series, h.point);
+ }
+
+ if (item)
+ highlight(item.series, item.datapoint, eventname);
+ }
+
+ placeholder.trigger(eventname, [ pos, item ]);
+ }
+
+ function triggerRedrawOverlay() {
+ if (!redrawTimeout)
+ redrawTimeout = setTimeout(drawOverlay, 30);
+ }
+
+ function drawOverlay() {
+ redrawTimeout = null;
+
+ // draw highlights
+ octx.save();
+ octx.clearRect(0, 0, canvasWidth, canvasHeight);
+ octx.translate(plotOffset.left, plotOffset.top);
+
+ var i, hi;
+ for (i = 0; i < highlights.length; ++i) {
+ hi = highlights[i];
+
+ if (hi.series.bars.show)
+ drawBarHighlight(hi.series, hi.point);
+ else
+ drawPointHighlight(hi.series, hi.point);
+ }
+ octx.restore();
+
+ executeHooks(hooks.drawOverlay, [octx]);
+ }
+
+ function highlight(s, point, auto) {
+ if (typeof s == "number")
+ s = series[s];
+
+ if (typeof point == "number") {
+ var ps = s.datapoints.pointsize;
+ point = s.datapoints.points.slice(ps * point, ps * (point + 1));
+ }
+
+ var i = indexOfHighlight(s, point);
+ if (i == -1) {
+ highlights.push({ series: s, point: point, auto: auto });
+
+ triggerRedrawOverlay();
+ }
+ else if (!auto)
+ highlights[i].auto = false;
+ }
+
+ function unhighlight(s, point) {
+ if (s == null && point == null) {
+ highlights = [];
+ triggerRedrawOverlay();
+ }
+
+ if (typeof s == "number")
+ s = series[s];
+
+ if (typeof point == "number")
+ point = s.data[point];
+
+ var i = indexOfHighlight(s, point);
+ if (i != -1) {
+ highlights.splice(i, 1);
+
+ triggerRedrawOverlay();
+ }
+ }
+
+ function indexOfHighlight(s, p) {
+ for (var i = 0; i < highlights.length; ++i) {
+ var h = highlights[i];
+ if (h.series == s && h.point[0] == p[0]
+ && h.point[1] == p[1])
+ return i;
+ }
+ return -1;
+ }
+
+ function drawPointHighlight(series, point) {
+ var x = point[0], y = point[1],
+ axisx = series.xaxis, axisy = series.yaxis;
+
+ if (x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max)
+ return;
+
+ var pointRadius = series.points.radius + series.points.lineWidth / 2;
+ octx.lineWidth = pointRadius;
+ octx.strokeStyle = $.color.parse(series.color).scale('a', 0.5).toString();
+ var radius = 1.5 * pointRadius,
+ x = axisx.p2c(x),
+ y = axisy.p2c(y);
+
+ octx.beginPath();
+ if (series.points.symbol == "circle")
+ octx.arc(x, y, radius, 0, 2 * Math.PI, false);
+ else
+ series.points.symbol(octx, x, y, radius, false);
+ octx.closePath();
+ octx.stroke();
+ }
+
+ function drawBarHighlight(series, point) {
+ octx.lineWidth = series.bars.lineWidth;
+ octx.strokeStyle = $.color.parse(series.color).scale('a', 0.5).toString();
+ var fillStyle = $.color.parse(series.color).scale('a', 0.5).toString();
+ var barLeft = series.bars.align == "left" ? 0 : -series.bars.barWidth/2;
+ drawBar(point[0], point[1], point[2] || 0, barLeft, barLeft + series.bars.barWidth,
+ 0, function () { return fillStyle; }, series.xaxis, series.yaxis, octx, series.bars.horizontal, series.bars.lineWidth);
+ }
+
+ function getColorOrGradient(spec, bottom, top, defaultColor) {
+ if (typeof spec == "string")
+ return spec;
+ else {
+ // assume this is a gradient spec; IE currently only
+ // supports a simple vertical gradient properly, so that's
+ // what we support too
+ var gradient = ctx.createLinearGradient(0, top, 0, bottom);
+
+ for (var i = 0, l = spec.colors.length; i < l; ++i) {
+ var c = spec.colors[i];
+ if (typeof c != "string") {
+ var co = $.color.parse(defaultColor);
+ if (c.brightness != null)
+ co = co.scale('rgb', c.brightness)
+ if (c.opacity != null)
+ co.a *= c.opacity;
+ c = co.toString();
+ }
+ gradient.addColorStop(i / (l - 1), c);
+ }
+
+ return gradient;
+ }
+ }
+ }
+
+ $.plot = function(placeholder, data, options) {
+ //var t0 = new Date();
+ var plot = new Plot($(placeholder), data, options, $.plot.plugins);
+ //(window.console ? console.log : alert)("time used (msecs): " + ((new Date()).getTime() - t0.getTime()));
+ return plot;
+ };
+
+ $.plot.version = "0.7";
+
+ $.plot.plugins = [];
+
+ // returns a string with the date d formatted according to fmt
+ $.plot.formatDate = function(d, fmt, monthNames) {
+ var leftPad = function(n) {
+ n = "" + n;
+ return n.length == 1 ? "0" + n : n;
+ };
+
+ var r = [];
+ var escape = false, padNext = false;
+ var hours = d.getUTCHours();
+ var isAM = hours < 12;
+ if (monthNames == null)
+ monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
+
+ if (fmt.search(/%p|%P/) != -1) {
+ if (hours > 12) {
+ hours = hours - 12;
+ } else if (hours == 0) {
+ hours = 12;
+ }
+ }
+ for (var i = 0; i < fmt.length; ++i) {
+ var c = fmt.charAt(i);
+
+ if (escape) {
+ switch (c) {
+ case 'h': c = "" + hours; break;
+ case 'H': c = leftPad(hours); break;
+ case 'M': c = leftPad(d.getUTCMinutes()); break;
+ case 'S': c = leftPad(d.getUTCSeconds()); break;
+ case 'd': c = "" + d.getUTCDate(); break;
+ case 'm': c = "" + (d.getUTCMonth() + 1); break;
+ case 'y': c = "" + d.getUTCFullYear(); break;
+ case 'b': c = "" + monthNames[d.getUTCMonth()]; break;
+ case 'p': c = (isAM) ? ("" + "am") : ("" + "pm"); break;
+ case 'P': c = (isAM) ? ("" + "AM") : ("" + "PM"); break;
+ case '0': c = ""; padNext = true; break;
+ }
+ if (c && padNext) {
+ c = leftPad(c);
+ padNext = false;
+ }
+ r.push(c);
+ if (!padNext)
+ escape = false;
+ }
+ else {
+ if (c == "%")
+ escape = true;
+ else
+ r.push(c);
+ }
+ }
+ return r.join("");
+ };
+
+ // round to nearby lower multiple of base
+ function floorInBase(n, base) {
+ return base * Math.floor(n / base);
+ }
+
+})(jQuery);
diff --git a/ui/lib/flot/jquery.flot.navigate.js b/ui/lib/flot/jquery.flot.navigate.js
new file mode 100644
index 00000000000..f2b97603c32
--- /dev/null
+++ b/ui/lib/flot/jquery.flot.navigate.js
@@ -0,0 +1,336 @@
+/*
+Flot plugin for adding panning and zooming capabilities to a plot.
+
+The default behaviour is double click and scrollwheel up/down to zoom
+in, drag to pan. The plugin defines plot.zoom({ center }),
+plot.zoomOut() and plot.pan(offset) so you easily can add custom
+controls. It also fires a "plotpan" and "plotzoom" event when
+something happens, useful for synchronizing plots.
+
+Options:
+
+ zoom: {
+ interactive: false
+ trigger: "dblclick" // or "click" for single click
+ amount: 1.5 // 2 = 200% (zoom in), 0.5 = 50% (zoom out)
+ }
+
+ pan: {
+ interactive: false
+ cursor: "move" // CSS mouse cursor value used when dragging, e.g. "pointer"
+ frameRate: 20
+ }
+
+ xaxis, yaxis, x2axis, y2axis: {
+ zoomRange: null // or [number, number] (min range, max range) or false
+ panRange: null // or [number, number] (min, max) or false
+ }
+
+"interactive" enables the built-in drag/click behaviour. If you enable
+interactive for pan, then you'll have a basic plot that supports
+moving around; the same for zoom.
+
+"amount" specifies the default amount to zoom in (so 1.5 = 150%)
+relative to the current viewport.
+
+"cursor" is a standard CSS mouse cursor string used for visual
+feedback to the user when dragging.
+
+"frameRate" specifies the maximum number of times per second the plot
+will update itself while the user is panning around on it (set to null
+to disable intermediate pans, the plot will then not update until the
+mouse button is released).
+
+"zoomRange" is the interval in which zooming can happen, e.g. with
+zoomRange: [1, 100] the zoom will never scale the axis so that the
+difference between min and max is smaller than 1 or larger than 100.
+You can set either end to null to ignore, e.g. [1, null]. If you set
+zoomRange to false, zooming on that axis will be disabled.
+
+"panRange" confines the panning to stay within a range, e.g. with
+panRange: [-10, 20] panning stops at -10 in one end and at 20 in the
+other. Either can be null, e.g. [-10, null]. If you set
+panRange to false, panning on that axis will be disabled.
+
+Example API usage:
+
+ plot = $.plot(...);
+
+ // zoom default amount in on the pixel (10, 20)
+ plot.zoom({ center: { left: 10, top: 20 } });
+
+ // zoom out again
+ plot.zoomOut({ center: { left: 10, top: 20 } });
+
+ // zoom 200% in on the pixel (10, 20)
+ plot.zoom({ amount: 2, center: { left: 10, top: 20 } });
+
+ // pan 100 pixels to the left and 20 down
+ plot.pan({ left: -100, top: 20 })
+
+Here, "center" specifies where the center of the zooming should
+happen. Note that this is defined in pixel space, not the space of the
+data points (you can use the p2c helpers on the axes in Flot to help
+you convert between these).
+
+"amount" is the amount to zoom the viewport relative to the current
+range, so 1 is 100% (i.e. no change), 1.5 is 150% (zoom in), 0.7 is
+70% (zoom out). You can set the default in the options.
+
+*/
+
+
+// First two dependencies, jquery.event.drag.js and
+// jquery.mousewheel.js, we put them inline here to save people the
+// effort of downloading them.
+
+/*
+jquery.event.drag.js ~ v1.5 ~ Copyright (c) 2008, Three Dub Media (http://threedubmedia.com)
+Licensed under the MIT License ~ http://threedubmedia.googlecode.com/files/MIT-LICENSE.txt
+*/
+(function(E){E.fn.drag=function(L,K,J){if(K){this.bind("dragstart",L)}if(J){this.bind("dragend",J)}return !L?this.trigger("drag"):this.bind("drag",K?K:L)};var A=E.event,B=A.special,F=B.drag={not:":input",distance:0,which:1,dragging:false,setup:function(J){J=E.extend({distance:F.distance,which:F.which,not:F.not},J||{});J.distance=I(J.distance);A.add(this,"mousedown",H,J);if(this.attachEvent){this.attachEvent("ondragstart",D)}},teardown:function(){A.remove(this,"mousedown",H);if(this===F.dragging){F.dragging=F.proxy=false}G(this,true);if(this.detachEvent){this.detachEvent("ondragstart",D)}}};B.dragstart=B.dragend={setup:function(){},teardown:function(){}};function H(L){var K=this,J,M=L.data||{};if(M.elem){K=L.dragTarget=M.elem;L.dragProxy=F.proxy||K;L.cursorOffsetX=M.pageX-M.left;L.cursorOffsetY=M.pageY-M.top;L.offsetX=L.pageX-L.cursorOffsetX;L.offsetY=L.pageY-L.cursorOffsetY}else{if(F.dragging||(M.which>0&&L.which!=M.which)||E(L.target).is(M.not)){return }}switch(L.type){case"mousedown":E.extend(M,E(K).offset(),{elem:K,target:L.target,pageX:L.pageX,pageY:L.pageY});A.add(document,"mousemove mouseup",H,M);G(K,false);F.dragging=null;return false;case !F.dragging&&"mousemove":if(I(L.pageX-M.pageX)+I(L.pageY-M.pageY) max) {
+ // make sure min < max
+ var tmp = min;
+ min = max;
+ max = tmp;
+ }
+
+ var range = max - min;
+ if (zr &&
+ ((zr[0] != null && range < zr[0]) ||
+ (zr[1] != null && range > zr[1])))
+ return;
+
+ opts.min = min;
+ opts.max = max;
+ });
+
+ plot.setupGrid();
+ plot.draw();
+
+ if (!args.preventEvent)
+ plot.getPlaceholder().trigger("plotzoom", [ plot ]);
+ }
+
+ plot.pan = function (args) {
+ var delta = {
+ x: +args.left,
+ y: +args.top
+ };
+
+ if (isNaN(delta.x))
+ delta.x = 0;
+ if (isNaN(delta.y))
+ delta.y = 0;
+
+ $.each(plot.getAxes(), function (_, axis) {
+ var opts = axis.options,
+ min, max, d = delta[axis.direction];
+
+ min = axis.c2p(axis.p2c(axis.min) + d),
+ max = axis.c2p(axis.p2c(axis.max) + d);
+
+ var pr = opts.panRange;
+ if (pr === false) // no panning on this axis
+ return;
+
+ if (pr) {
+ // check whether we hit the wall
+ if (pr[0] != null && pr[0] > min) {
+ d = pr[0] - min;
+ min += d;
+ max += d;
+ }
+
+ if (pr[1] != null && pr[1] < max) {
+ d = pr[1] - max;
+ min += d;
+ max += d;
+ }
+ }
+
+ opts.min = min;
+ opts.max = max;
+ });
+
+ plot.setupGrid();
+ plot.draw();
+
+ if (!args.preventEvent)
+ plot.getPlaceholder().trigger("plotpan", [ plot ]);
+ }
+
+ function shutdown(plot, eventHolder) {
+ eventHolder.unbind(plot.getOptions().zoom.trigger, onZoomClick);
+ eventHolder.unbind("mousewheel", onMouseWheel);
+ eventHolder.unbind("dragstart", onDragStart);
+ eventHolder.unbind("drag", onDrag);
+ eventHolder.unbind("dragend", onDragEnd);
+ if (panTimeout)
+ clearTimeout(panTimeout);
+ }
+
+ plot.hooks.bindEvents.push(bindEvents);
+ plot.hooks.shutdown.push(shutdown);
+ }
+
+ $.plot.plugins.push({
+ init: init,
+ options: options,
+ name: 'navigate',
+ version: '1.3'
+ });
+})(jQuery);
diff --git a/ui/lib/flot/jquery.flot.pie.js b/ui/lib/flot/jquery.flot.pie.js
new file mode 100644
index 00000000000..b46c03c2718
--- /dev/null
+++ b/ui/lib/flot/jquery.flot.pie.js
@@ -0,0 +1,750 @@
+/*
+Flot plugin for rendering pie charts. The plugin assumes the data is
+coming is as a single data value for each series, and each of those
+values is a positive value or zero (negative numbers don't make
+any sense and will cause strange effects). The data values do
+NOT need to be passed in as percentage values because it
+internally calculates the total and percentages.
+
+* Created by Brian Medendorp, June 2009
+* Updated November 2009 with contributions from: btburnett3, Anthony Aragues and Xavi Ivars
+
+* Changes:
+ 2009-10-22: lineJoin set to round
+ 2009-10-23: IE full circle fix, donut
+ 2009-11-11: Added basic hover from btburnett3 - does not work in IE, and center is off in Chrome and Opera
+ 2009-11-17: Added IE hover capability submitted by Anthony Aragues
+ 2009-11-18: Added bug fix submitted by Xavi Ivars (issues with arrays when other JS libraries are included as well)
+
+
+Available options are:
+series: {
+ pie: {
+ show: true/false
+ radius: 0-1 for percentage of fullsize, or a specified pixel length, or 'auto'
+ innerRadius: 0-1 for percentage of fullsize or a specified pixel length, for creating a donut effect
+ startAngle: 0-2 factor of PI used for starting angle (in radians) i.e 3/2 starts at the top, 0 and 2 have the same result
+ tilt: 0-1 for percentage to tilt the pie, where 1 is no tilt, and 0 is completely flat (nothing will show)
+ offset: {
+ top: integer value to move the pie up or down
+ left: integer value to move the pie left or right, or 'auto'
+ },
+ stroke: {
+ color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#FFF')
+ width: integer pixel width of the stroke
+ },
+ label: {
+ show: true/false, or 'auto'
+ formatter: a user-defined function that modifies the text/style of the label text
+ radius: 0-1 for percentage of fullsize, or a specified pixel length
+ background: {
+ color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#000')
+ opacity: 0-1
+ },
+ threshold: 0-1 for the percentage value at which to hide labels (if they're too small)
+ },
+ combine: {
+ threshold: 0-1 for the percentage value at which to combine slices (if they're too small)
+ color: any hexidecimal color value (other formats may or may not work, so best to stick with something like '#CCC'), if null, the plugin will automatically use the color of the first slice to be combined
+ label: any text value of what the combined slice should be labeled
+ }
+ highlight: {
+ opacity: 0-1
+ }
+ }
+}
+
+More detail and specific examples can be found in the included HTML file.
+
+*/
+
+(function ($)
+{
+ function init(plot) // this is the "body" of the plugin
+ {
+ var canvas = null;
+ var target = null;
+ var maxRadius = null;
+ var centerLeft = null;
+ var centerTop = null;
+ var total = 0;
+ var redraw = true;
+ var redrawAttempts = 10;
+ var shrink = 0.95;
+ var legendWidth = 0;
+ var processed = false;
+ var raw = false;
+
+ // interactive variables
+ var highlights = [];
+
+ // add hook to determine if pie plugin in enabled, and then perform necessary operations
+ plot.hooks.processOptions.push(checkPieEnabled);
+ plot.hooks.bindEvents.push(bindEvents);
+
+ // check to see if the pie plugin is enabled
+ function checkPieEnabled(plot, options)
+ {
+ if (options.series.pie.show)
+ {
+ //disable grid
+ options.grid.show = false;
+
+ // set labels.show
+ if (options.series.pie.label.show=='auto')
+ if (options.legend.show)
+ options.series.pie.label.show = false;
+ else
+ options.series.pie.label.show = true;
+
+ // set radius
+ if (options.series.pie.radius=='auto')
+ if (options.series.pie.label.show)
+ options.series.pie.radius = 3/4;
+ else
+ options.series.pie.radius = 1;
+
+ // ensure sane tilt
+ if (options.series.pie.tilt>1)
+ options.series.pie.tilt=1;
+ if (options.series.pie.tilt<0)
+ options.series.pie.tilt=0;
+
+ // add processData hook to do transformations on the data
+ plot.hooks.processDatapoints.push(processDatapoints);
+ plot.hooks.drawOverlay.push(drawOverlay);
+
+ // add draw hook
+ plot.hooks.draw.push(draw);
+ }
+ }
+
+ // bind hoverable events
+ function bindEvents(plot, eventHolder)
+ {
+ var options = plot.getOptions();
+
+ if (options.series.pie.show && options.grid.hoverable)
+ eventHolder.unbind('mousemove').mousemove(onMouseMove);
+
+ if (options.series.pie.show && options.grid.clickable)
+ eventHolder.unbind('click').click(onClick);
+ }
+
+
+ // debugging function that prints out an object
+ function alertObject(obj)
+ {
+ var msg = '';
+ function traverse(obj, depth)
+ {
+ if (!depth)
+ depth = 0;
+ for (var i = 0; i < obj.length; ++i)
+ {
+ for (var j=0; jcanvas.width-maxRadius)
+ centerLeft = canvas.width-maxRadius;
+ }
+
+ function fixData(data)
+ {
+ for (var i = 0; i < data.length; ++i)
+ {
+ if (typeof(data[i].data)=='number')
+ data[i].data = [[1,data[i].data]];
+ else if (typeof(data[i].data)=='undefined' || typeof(data[i].data[0])=='undefined')
+ {
+ if (typeof(data[i].data)!='undefined' && typeof(data[i].data.label)!='undefined')
+ data[i].label = data[i].data.label; // fix weirdness coming from flot
+ data[i].data = [[1,0]];
+
+ }
+ }
+ return data;
+ }
+
+ function combine(data)
+ {
+ data = fixData(data);
+ calcTotal(data);
+ var combined = 0;
+ var numCombined = 0;
+ var color = options.series.pie.combine.color;
+
+ var newdata = [];
+ for (var i = 0; i < data.length; ++i)
+ {
+ // make sure its a number
+ data[i].data[0][1] = parseFloat(data[i].data[0][1]);
+ if (!data[i].data[0][1])
+ data[i].data[0][1] = 0;
+
+ if (data[i].data[0][1]/total<=options.series.pie.combine.threshold)
+ {
+ combined += data[i].data[0][1];
+ numCombined++;
+ if (!color)
+ color = data[i].color;
+ }
+ else
+ {
+ newdata.push({
+ data: [[1,data[i].data[0][1]]],
+ color: data[i].color,
+ label: data[i].label,
+ angle: (data[i].data[0][1]*(Math.PI*2))/total,
+ percent: (data[i].data[0][1]/total*100)
+ });
+ }
+ }
+ if (numCombined>0)
+ newdata.push({
+ data: [[1,combined]],
+ color: color,
+ label: options.series.pie.combine.label,
+ angle: (combined*(Math.PI*2))/total,
+ percent: (combined/total*100)
+ });
+ return newdata;
+ }
+
+ function draw(plot, newCtx)
+ {
+ if (!target) return; // if no series were passed
+ ctx = newCtx;
+
+ setupPie();
+ var slices = plot.getData();
+
+ var attempts = 0;
+ while (redraw && attempts0)
+ maxRadius *= shrink;
+ attempts += 1;
+ clear();
+ if (options.series.pie.tilt<=0.8)
+ drawShadow();
+ drawPie();
+ }
+ if (attempts >= redrawAttempts) {
+ clear();
+ target.prepend('Could not draw pie with labels contained inside canvas
');
+ }
+
+ if ( plot.setSeries && plot.insertLegend )
+ {
+ plot.setSeries(slices);
+ plot.insertLegend();
+ }
+
+ // we're actually done at this point, just defining internal functions at this point
+
+ function clear()
+ {
+ ctx.clearRect(0,0,canvas.width,canvas.height);
+ target.children().filter('.pieLabel, .pieLabelBackground').remove();
+ }
+
+ function drawShadow()
+ {
+ var shadowLeft = 5;
+ var shadowTop = 15;
+ var edge = 10;
+ var alpha = 0.02;
+
+ // set radius
+ if (options.series.pie.radius>1)
+ var radius = options.series.pie.radius;
+ else
+ var radius = maxRadius * options.series.pie.radius;
+
+ if (radius>=(canvas.width/2)-shadowLeft || radius*options.series.pie.tilt>=(canvas.height/2)-shadowTop || radius<=edge)
+ return; // shadow would be outside canvas, so don't draw it
+
+ ctx.save();
+ ctx.translate(shadowLeft,shadowTop);
+ ctx.globalAlpha = alpha;
+ ctx.fillStyle = '#000';
+
+ // center and rotate to starting position
+ ctx.translate(centerLeft,centerTop);
+ ctx.scale(1, options.series.pie.tilt);
+
+ //radius -= edge;
+ for (var i=1; i<=edge; i++)
+ {
+ ctx.beginPath();
+ ctx.arc(0,0,radius,0,Math.PI*2,false);
+ ctx.fill();
+ radius -= i;
+ }
+
+ ctx.restore();
+ }
+
+ function drawPie()
+ {
+ startAngle = Math.PI*options.series.pie.startAngle;
+
+ // set radius
+ if (options.series.pie.radius>1)
+ var radius = options.series.pie.radius;
+ else
+ var radius = maxRadius * options.series.pie.radius;
+
+ // center and rotate to starting position
+ ctx.save();
+ ctx.translate(centerLeft,centerTop);
+ ctx.scale(1, options.series.pie.tilt);
+ //ctx.rotate(startAngle); // start at top; -- This doesn't work properly in Opera
+
+ // draw slices
+ ctx.save();
+ var currentAngle = startAngle;
+ for (var i = 0; i < slices.length; ++i)
+ {
+ slices[i].startAngle = currentAngle;
+ drawSlice(slices[i].angle, slices[i].color, true);
+ }
+ ctx.restore();
+
+ // draw slice outlines
+ ctx.save();
+ ctx.lineWidth = options.series.pie.stroke.width;
+ currentAngle = startAngle;
+ for (var i = 0; i < slices.length; ++i)
+ drawSlice(slices[i].angle, options.series.pie.stroke.color, false);
+ ctx.restore();
+
+ // draw donut hole
+ drawDonutHole(ctx);
+
+ // draw labels
+ if (options.series.pie.label.show)
+ drawLabels();
+
+ // restore to original state
+ ctx.restore();
+
+ function drawSlice(angle, color, fill)
+ {
+ if (angle<=0)
+ return;
+
+ if (fill)
+ ctx.fillStyle = color;
+ else
+ {
+ ctx.strokeStyle = color;
+ ctx.lineJoin = 'round';
+ }
+
+ ctx.beginPath();
+ if (Math.abs(angle - Math.PI*2) > 0.000000001)
+ ctx.moveTo(0,0); // Center of the pie
+ else if ($.browser.msie)
+ angle -= 0.0001;
+ //ctx.arc(0,0,radius,0,angle,false); // This doesn't work properly in Opera
+ ctx.arc(0,0,radius,currentAngle,currentAngle+angle,false);
+ ctx.closePath();
+ //ctx.rotate(angle); // This doesn't work properly in Opera
+ currentAngle += angle;
+
+ if (fill)
+ ctx.fill();
+ else
+ ctx.stroke();
+ }
+
+ function drawLabels()
+ {
+ var currentAngle = startAngle;
+
+ // set radius
+ if (options.series.pie.label.radius>1)
+ var radius = options.series.pie.label.radius;
+ else
+ var radius = maxRadius * options.series.pie.label.radius;
+
+ for (var i = 0; i < slices.length; ++i)
+ {
+ if (slices[i].percent >= options.series.pie.label.threshold*100)
+ drawLabel(slices[i], currentAngle, i);
+ currentAngle += slices[i].angle;
+ }
+
+ function drawLabel(slice, startAngle, index)
+ {
+ if (slice.data[0][1]==0)
+ return;
+
+ // format label text
+ var lf = options.legend.labelFormatter, text, plf = options.series.pie.label.formatter;
+ if (lf)
+ text = lf(slice.label, slice);
+ else
+ text = slice.label;
+ if (plf)
+ text = plf(text, slice);
+
+ var halfAngle = ((startAngle+slice.angle) + startAngle)/2;
+ var x = centerLeft + Math.round(Math.cos(halfAngle) * radius);
+ var y = centerTop + Math.round(Math.sin(halfAngle) * radius) * options.series.pie.tilt;
+
+ var html = '' + text + " ";
+ target.append(html);
+ var label = target.children('#pieLabel'+index);
+ var labelTop = (y - label.height()/2);
+ var labelLeft = (x - label.width()/2);
+ label.css('top', labelTop);
+ label.css('left', labelLeft);
+
+ // check to make sure that the label is not outside the canvas
+ if (0-labelTop>0 || 0-labelLeft>0 || canvas.height-(labelTop+label.height())<0 || canvas.width-(labelLeft+label.width())<0)
+ redraw = true;
+
+ if (options.series.pie.label.background.opacity != 0) {
+ // put in the transparent background separately to avoid blended labels and label boxes
+ var c = options.series.pie.label.background.color;
+ if (c == null) {
+ c = slice.color;
+ }
+ var pos = 'top:'+labelTop+'px;left:'+labelLeft+'px;';
+ $('
').insertBefore(label).css('opacity', options.series.pie.label.background.opacity);
+ }
+ } // end individual label function
+ } // end drawLabels function
+ } // end drawPie function
+ } // end draw function
+
+ // Placed here because it needs to be accessed from multiple locations
+ function drawDonutHole(layer)
+ {
+ // draw donut hole
+ if(options.series.pie.innerRadius > 0)
+ {
+ // subtract the center
+ layer.save();
+ innerRadius = options.series.pie.innerRadius > 1 ? options.series.pie.innerRadius : maxRadius * options.series.pie.innerRadius;
+ layer.globalCompositeOperation = 'destination-out'; // this does not work with excanvas, but it will fall back to using the stroke color
+ layer.beginPath();
+ layer.fillStyle = options.series.pie.stroke.color;
+ layer.arc(0,0,innerRadius,0,Math.PI*2,false);
+ layer.fill();
+ layer.closePath();
+ layer.restore();
+
+ // add inner stroke
+ layer.save();
+ layer.beginPath();
+ layer.strokeStyle = options.series.pie.stroke.color;
+ layer.arc(0,0,innerRadius,0,Math.PI*2,false);
+ layer.stroke();
+ layer.closePath();
+ layer.restore();
+ // TODO: add extra shadow inside hole (with a mask) if the pie is tilted.
+ }
+ }
+
+ //-- Additional Interactive related functions --
+
+ function isPointInPoly(poly, pt)
+ {
+ for(var c = false, i = -1, l = poly.length, j = l - 1; ++i < l; j = i)
+ ((poly[i][1] <= pt[1] && pt[1] < poly[j][1]) || (poly[j][1] <= pt[1] && pt[1]< poly[i][1]))
+ && (pt[0] < (poly[j][0] - poly[i][0]) * (pt[1] - poly[i][1]) / (poly[j][1] - poly[i][1]) + poly[i][0])
+ && (c = !c);
+ return c;
+ }
+
+ function findNearbySlice(mouseX, mouseY)
+ {
+ var slices = plot.getData(),
+ options = plot.getOptions(),
+ radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
+
+ for (var i = 0; i < slices.length; ++i)
+ {
+ var s = slices[i];
+
+ if(s.pie.show)
+ {
+ ctx.save();
+ ctx.beginPath();
+ ctx.moveTo(0,0); // Center of the pie
+ //ctx.scale(1, options.series.pie.tilt); // this actually seems to break everything when here.
+ ctx.arc(0,0,radius,s.startAngle,s.startAngle+s.angle,false);
+ ctx.closePath();
+ x = mouseX-centerLeft;
+ y = mouseY-centerTop;
+ if(ctx.isPointInPath)
+ {
+ if (ctx.isPointInPath(mouseX-centerLeft, mouseY-centerTop))
+ {
+ //alert('found slice!');
+ ctx.restore();
+ return {datapoint: [s.percent, s.data], dataIndex: 0, series: s, seriesIndex: i};
+ }
+ }
+ else
+ {
+ // excanvas for IE doesn;t support isPointInPath, this is a workaround.
+ p1X = (radius * Math.cos(s.startAngle));
+ p1Y = (radius * Math.sin(s.startAngle));
+ p2X = (radius * Math.cos(s.startAngle+(s.angle/4)));
+ p2Y = (radius * Math.sin(s.startAngle+(s.angle/4)));
+ p3X = (radius * Math.cos(s.startAngle+(s.angle/2)));
+ p3Y = (radius * Math.sin(s.startAngle+(s.angle/2)));
+ p4X = (radius * Math.cos(s.startAngle+(s.angle/1.5)));
+ p4Y = (radius * Math.sin(s.startAngle+(s.angle/1.5)));
+ p5X = (radius * Math.cos(s.startAngle+s.angle));
+ p5Y = (radius * Math.sin(s.startAngle+s.angle));
+ arrPoly = [[0,0],[p1X,p1Y],[p2X,p2Y],[p3X,p3Y],[p4X,p4Y],[p5X,p5Y]];
+ arrPoint = [x,y];
+ // TODO: perhaps do some mathmatical trickery here with the Y-coordinate to compensate for pie tilt?
+ if(isPointInPoly(arrPoly, arrPoint))
+ {
+ ctx.restore();
+ return {datapoint: [s.percent, s.data], dataIndex: 0, series: s, seriesIndex: i};
+ }
+ }
+ ctx.restore();
+ }
+ }
+
+ return null;
+ }
+
+ function onMouseMove(e)
+ {
+ triggerClickHoverEvent('plothover', e);
+ }
+
+ function onClick(e)
+ {
+ triggerClickHoverEvent('plotclick', e);
+ }
+
+ // trigger click or hover event (they send the same parameters so we share their code)
+ function triggerClickHoverEvent(eventname, e)
+ {
+ var offset = plot.offset(),
+ canvasX = parseInt(e.pageX - offset.left),
+ canvasY = parseInt(e.pageY - offset.top),
+ item = findNearbySlice(canvasX, canvasY);
+
+ if (options.grid.autoHighlight)
+ {
+ // clear auto-highlights
+ for (var i = 0; i < highlights.length; ++i)
+ {
+ var h = highlights[i];
+ if (h.auto == eventname && !(item && h.series == item.series))
+ unhighlight(h.series);
+ }
+ }
+
+ // highlight the slice
+ if (item)
+ highlight(item.series, eventname);
+
+ // trigger any hover bind events
+ var pos = { pageX: e.pageX, pageY: e.pageY };
+ target.trigger(eventname, [ pos, item ]);
+ }
+
+ function highlight(s, auto)
+ {
+ if (typeof s == "number")
+ s = series[s];
+
+ var i = indexOfHighlight(s);
+ if (i == -1)
+ {
+ highlights.push({ series: s, auto: auto });
+ plot.triggerRedrawOverlay();
+ }
+ else if (!auto)
+ highlights[i].auto = false;
+ }
+
+ function unhighlight(s)
+ {
+ if (s == null)
+ {
+ highlights = [];
+ plot.triggerRedrawOverlay();
+ }
+
+ if (typeof s == "number")
+ s = series[s];
+
+ var i = indexOfHighlight(s);
+ if (i != -1)
+ {
+ highlights.splice(i, 1);
+ plot.triggerRedrawOverlay();
+ }
+ }
+
+ function indexOfHighlight(s)
+ {
+ for (var i = 0; i < highlights.length; ++i)
+ {
+ var h = highlights[i];
+ if (h.series == s)
+ return i;
+ }
+ return -1;
+ }
+
+ function drawOverlay(plot, octx)
+ {
+ //alert(options.series.pie.radius);
+ var options = plot.getOptions();
+ //alert(options.series.pie.radius);
+
+ var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
+
+ octx.save();
+ octx.translate(centerLeft, centerTop);
+ octx.scale(1, options.series.pie.tilt);
+
+ for (i = 0; i < highlights.length; ++i)
+ drawHighlight(highlights[i].series);
+
+ drawDonutHole(octx);
+
+ octx.restore();
+
+ function drawHighlight(series)
+ {
+ if (series.angle < 0) return;
+
+ //octx.fillStyle = parseColor(options.series.pie.highlight.color).scale(null, null, null, options.series.pie.highlight.opacity).toString();
+ octx.fillStyle = "rgba(255, 255, 255, "+options.series.pie.highlight.opacity+")"; // this is temporary until we have access to parseColor
+
+ octx.beginPath();
+ if (Math.abs(series.angle - Math.PI*2) > 0.000000001)
+ octx.moveTo(0,0); // Center of the pie
+ octx.arc(0,0,radius,series.startAngle,series.startAngle+series.angle,false);
+ octx.closePath();
+ octx.fill();
+ }
+
+ }
+
+ } // end init (plugin body)
+
+ // define pie specific options and their default values
+ var options = {
+ series: {
+ pie: {
+ show: false,
+ radius: 'auto', // actual radius of the visible pie (based on full calculated radius if <=1, or hard pixel value)
+ innerRadius:0, /* for donut */
+ startAngle: 3/2,
+ tilt: 1,
+ offset: {
+ top: 0,
+ left: 'auto'
+ },
+ stroke: {
+ color: '#FFF',
+ width: 1
+ },
+ label: {
+ show: 'auto',
+ formatter: function(label, slice){
+ return ''+label+'
';
+ }, // formatter function
+ radius: 1, // radius at which to place the labels (based on full calculated radius if <=1, or hard pixel value)
+ background: {
+ color: null,
+ opacity: 0
+ },
+ threshold: 0 // percentage at which to hide the label (i.e. the slice is too narrow)
+ },
+ combine: {
+ threshold: -1, // percentage at which to combine little slices into one larger slice
+ color: null, // color to give the new slice (auto-generated if null)
+ label: 'Other' // label to give the new slice
+ },
+ highlight: {
+ //color: '#FFF', // will add this functionality once parseColor is available
+ opacity: 0.5
+ }
+ }
+ }
+ };
+
+ $.plot.plugins.push({
+ init: init,
+ options: options,
+ name: "pie",
+ version: "1.0"
+ });
+})(jQuery);
diff --git a/ui/lib/flot/jquery.flot.resize.js b/ui/lib/flot/jquery.flot.resize.js
new file mode 100644
index 00000000000..69dfb24f38e
--- /dev/null
+++ b/ui/lib/flot/jquery.flot.resize.js
@@ -0,0 +1,60 @@
+/*
+Flot plugin for automatically redrawing plots when the placeholder
+size changes, e.g. on window resizes.
+
+It works by listening for changes on the placeholder div (through the
+jQuery resize event plugin) - if the size changes, it will redraw the
+plot.
+
+There are no options. If you need to disable the plugin for some
+plots, you can just fix the size of their placeholders.
+*/
+
+
+/* Inline dependency:
+ * jQuery resize event - v1.1 - 3/14/2010
+ * http://benalman.com/projects/jquery-resize-plugin/
+ *
+ * Copyright (c) 2010 "Cowboy" Ben Alman
+ * Dual licensed under the MIT and GPL licenses.
+ * http://benalman.com/about/license/
+ */
+(function($,h,c){var a=$([]),e=$.resize=$.extend($.resize,{}),i,k="setTimeout",j="resize",d=j+"-special-event",b="delay",f="throttleWindow";e[b]=250;e[f]=true;$.event.special[j]={setup:function(){if(!e[f]&&this[k]){return false}var l=$(this);a=a.add(l);$.data(this,d,{w:l.width(),h:l.height()});if(a.length===1){g()}},teardown:function(){if(!e[f]&&this[k]){return false}var l=$(this);a=a.not(l);l.removeData(d);if(!a.length){clearTimeout(i)}},add:function(l){if(!e[f]&&this[k]){return false}var n;function m(s,o,p){var q=$(this),r=$.data(this,d);r.w=o!==c?o:q.width();r.h=p!==c?p:q.height();n.apply(this,arguments)}if($.isFunction(l)){n=l;return m}else{n=l.handler;l.handler=m}}};function g(){i=h[k](function(){a.each(function(){var n=$(this),m=n.width(),l=n.height(),o=$.data(this,d);if(m!==o.w||l!==o.h){n.trigger(j,[o.w=m,o.h=l])}});g()},e[b])}})(jQuery,this);
+
+
+(function ($) {
+ var options = { }; // no options
+
+ function init(plot) {
+ function onResize() {
+ var placeholder = plot.getPlaceholder();
+
+ // somebody might have hidden us and we can't plot
+ // when we don't have the dimensions
+ if (placeholder.width() == 0 || placeholder.height() == 0)
+ return;
+
+ plot.resize();
+ plot.setupGrid();
+ plot.draw();
+ }
+
+ function bindEvents(plot, eventHolder) {
+ plot.getPlaceholder().resize(onResize);
+ }
+
+ function shutdown(plot, eventHolder) {
+ plot.getPlaceholder().unbind("resize", onResize);
+ }
+
+ plot.hooks.bindEvents.push(bindEvents);
+ plot.hooks.shutdown.push(shutdown);
+ }
+
+ $.plot.plugins.push({
+ init: init,
+ options: options,
+ name: 'resize',
+ version: '1.0'
+ });
+})(jQuery);
diff --git a/ui/lib/flot/jquery.flot.selection.js b/ui/lib/flot/jquery.flot.selection.js
new file mode 100644
index 00000000000..7f7b32694bd
--- /dev/null
+++ b/ui/lib/flot/jquery.flot.selection.js
@@ -0,0 +1,344 @@
+/*
+Flot plugin for selecting regions.
+
+The plugin defines the following options:
+
+ selection: {
+ mode: null or "x" or "y" or "xy",
+ color: color
+ }
+
+Selection support is enabled by setting the mode to one of "x", "y" or
+"xy". In "x" mode, the user will only be able to specify the x range,
+similarly for "y" mode. For "xy", the selection becomes a rectangle
+where both ranges can be specified. "color" is color of the selection
+(if you need to change the color later on, you can get to it with
+plot.getOptions().selection.color).
+
+When selection support is enabled, a "plotselected" event will be
+emitted on the DOM element you passed into the plot function. The
+event handler gets a parameter with the ranges selected on the axes,
+like this:
+
+ placeholder.bind("plotselected", function(event, ranges) {
+ alert("You selected " + ranges.xaxis.from + " to " + ranges.xaxis.to)
+ // similar for yaxis - with multiple axes, the extra ones are in
+ // x2axis, x3axis, ...
+ });
+
+The "plotselected" event is only fired when the user has finished
+making the selection. A "plotselecting" event is fired during the
+process with the same parameters as the "plotselected" event, in case
+you want to know what's happening while it's happening,
+
+A "plotunselected" event with no arguments is emitted when the user
+clicks the mouse to remove the selection.
+
+The plugin allso adds the following methods to the plot object:
+
+- setSelection(ranges, preventEvent)
+
+ Set the selection rectangle. The passed in ranges is on the same
+ form as returned in the "plotselected" event. If the selection mode
+ is "x", you should put in either an xaxis range, if the mode is "y"
+ you need to put in an yaxis range and both xaxis and yaxis if the
+ selection mode is "xy", like this:
+
+ setSelection({ xaxis: { from: 0, to: 10 }, yaxis: { from: 40, to: 60 } });
+
+ setSelection will trigger the "plotselected" event when called. If
+ you don't want that to happen, e.g. if you're inside a
+ "plotselected" handler, pass true as the second parameter. If you
+ are using multiple axes, you can specify the ranges on any of those,
+ e.g. as x2axis/x3axis/... instead of xaxis, the plugin picks the
+ first one it sees.
+
+- clearSelection(preventEvent)
+
+ Clear the selection rectangle. Pass in true to avoid getting a
+ "plotunselected" event.
+
+- getSelection()
+
+ Returns the current selection in the same format as the
+ "plotselected" event. If there's currently no selection, the
+ function returns null.
+
+*/
+
+(function ($) {
+ function init(plot) {
+ var selection = {
+ first: { x: -1, y: -1}, second: { x: -1, y: -1},
+ show: false,
+ active: false
+ };
+
+ // FIXME: The drag handling implemented here should be
+ // abstracted out, there's some similar code from a library in
+ // the navigation plugin, this should be massaged a bit to fit
+ // the Flot cases here better and reused. Doing this would
+ // make this plugin much slimmer.
+ var savedhandlers = {};
+
+ var mouseUpHandler = null;
+
+ function onMouseMove(e) {
+ if (selection.active) {
+ updateSelection(e);
+
+ plot.getPlaceholder().trigger("plotselecting", [ getSelection() ]);
+ }
+ }
+
+ function onMouseDown(e) {
+ if (e.which != 1) // only accept left-click
+ return;
+
+ // cancel out any text selections
+ document.body.focus();
+
+ // prevent text selection and drag in old-school browsers
+ if (document.onselectstart !== undefined && savedhandlers.onselectstart == null) {
+ savedhandlers.onselectstart = document.onselectstart;
+ document.onselectstart = function () { return false; };
+ }
+ if (document.ondrag !== undefined && savedhandlers.ondrag == null) {
+ savedhandlers.ondrag = document.ondrag;
+ document.ondrag = function () { return false; };
+ }
+
+ setSelectionPos(selection.first, e);
+
+ selection.active = true;
+
+ // this is a bit silly, but we have to use a closure to be
+ // able to whack the same handler again
+ mouseUpHandler = function (e) { onMouseUp(e); };
+
+ $(document).one("mouseup", mouseUpHandler);
+ }
+
+ function onMouseUp(e) {
+ mouseUpHandler = null;
+
+ // revert drag stuff for old-school browsers
+ if (document.onselectstart !== undefined)
+ document.onselectstart = savedhandlers.onselectstart;
+ if (document.ondrag !== undefined)
+ document.ondrag = savedhandlers.ondrag;
+
+ // no more dragging
+ selection.active = false;
+ updateSelection(e);
+
+ if (selectionIsSane())
+ triggerSelectedEvent();
+ else {
+ // this counts as a clear
+ plot.getPlaceholder().trigger("plotunselected", [ ]);
+ plot.getPlaceholder().trigger("plotselecting", [ null ]);
+ }
+
+ return false;
+ }
+
+ function getSelection() {
+ if (!selectionIsSane())
+ return null;
+
+ var r = {}, c1 = selection.first, c2 = selection.second;
+ $.each(plot.getAxes(), function (name, axis) {
+ if (axis.used) {
+ var p1 = axis.c2p(c1[axis.direction]), p2 = axis.c2p(c2[axis.direction]);
+ r[name] = { from: Math.min(p1, p2), to: Math.max(p1, p2) };
+ }
+ });
+ return r;
+ }
+
+ function triggerSelectedEvent() {
+ var r = getSelection();
+
+ plot.getPlaceholder().trigger("plotselected", [ r ]);
+
+ // backwards-compat stuff, to be removed in future
+ if (r.xaxis && r.yaxis)
+ plot.getPlaceholder().trigger("selected", [ { x1: r.xaxis.from, y1: r.yaxis.from, x2: r.xaxis.to, y2: r.yaxis.to } ]);
+ }
+
+ function clamp(min, value, max) {
+ return value < min ? min: (value > max ? max: value);
+ }
+
+ function setSelectionPos(pos, e) {
+ var o = plot.getOptions();
+ var offset = plot.getPlaceholder().offset();
+ var plotOffset = plot.getPlotOffset();
+ pos.x = clamp(0, e.pageX - offset.left - plotOffset.left, plot.width());
+ pos.y = clamp(0, e.pageY - offset.top - plotOffset.top, plot.height());
+
+ if (o.selection.mode == "y")
+ pos.x = pos == selection.first ? 0 : plot.width();
+
+ if (o.selection.mode == "x")
+ pos.y = pos == selection.first ? 0 : plot.height();
+ }
+
+ function updateSelection(pos) {
+ if (pos.pageX == null)
+ return;
+
+ setSelectionPos(selection.second, pos);
+ if (selectionIsSane()) {
+ selection.show = true;
+ plot.triggerRedrawOverlay();
+ }
+ else
+ clearSelection(true);
+ }
+
+ function clearSelection(preventEvent) {
+ if (selection.show) {
+ selection.show = false;
+ plot.triggerRedrawOverlay();
+ if (!preventEvent)
+ plot.getPlaceholder().trigger("plotunselected", [ ]);
+ }
+ }
+
+ // function taken from markings support in Flot
+ function extractRange(ranges, coord) {
+ var axis, from, to, key, axes = plot.getAxes();
+
+ for (var k in axes) {
+ axis = axes[k];
+ if (axis.direction == coord) {
+ key = coord + axis.n + "axis";
+ if (!ranges[key] && axis.n == 1)
+ key = coord + "axis"; // support x1axis as xaxis
+ if (ranges[key]) {
+ from = ranges[key].from;
+ to = ranges[key].to;
+ break;
+ }
+ }
+ }
+
+ // backwards-compat stuff - to be removed in future
+ if (!ranges[key]) {
+ axis = coord == "x" ? plot.getXAxes()[0] : plot.getYAxes()[0];
+ from = ranges[coord + "1"];
+ to = ranges[coord + "2"];
+ }
+
+ // auto-reverse as an added bonus
+ if (from != null && to != null && from > to) {
+ var tmp = from;
+ from = to;
+ to = tmp;
+ }
+
+ return { from: from, to: to, axis: axis };
+ }
+
+ function setSelection(ranges, preventEvent) {
+ var axis, range, o = plot.getOptions();
+
+ if (o.selection.mode == "y") {
+ selection.first.x = 0;
+ selection.second.x = plot.width();
+ }
+ else {
+ range = extractRange(ranges, "x");
+
+ selection.first.x = range.axis.p2c(range.from);
+ selection.second.x = range.axis.p2c(range.to);
+ }
+
+ if (o.selection.mode == "x") {
+ selection.first.y = 0;
+ selection.second.y = plot.height();
+ }
+ else {
+ range = extractRange(ranges, "y");
+
+ selection.first.y = range.axis.p2c(range.from);
+ selection.second.y = range.axis.p2c(range.to);
+ }
+
+ selection.show = true;
+ plot.triggerRedrawOverlay();
+ if (!preventEvent && selectionIsSane())
+ triggerSelectedEvent();
+ }
+
+ function selectionIsSane() {
+ var minSize = 5;
+ return Math.abs(selection.second.x - selection.first.x) >= minSize &&
+ Math.abs(selection.second.y - selection.first.y) >= minSize;
+ }
+
+ plot.clearSelection = clearSelection;
+ plot.setSelection = setSelection;
+ plot.getSelection = getSelection;
+
+ plot.hooks.bindEvents.push(function(plot, eventHolder) {
+ var o = plot.getOptions();
+ if (o.selection.mode != null) {
+ eventHolder.mousemove(onMouseMove);
+ eventHolder.mousedown(onMouseDown);
+ }
+ });
+
+
+ plot.hooks.drawOverlay.push(function (plot, ctx) {
+ // draw selection
+ if (selection.show && selectionIsSane()) {
+ var plotOffset = plot.getPlotOffset();
+ var o = plot.getOptions();
+
+ ctx.save();
+ ctx.translate(plotOffset.left, plotOffset.top);
+
+ var c = $.color.parse(o.selection.color);
+
+ ctx.strokeStyle = c.scale('a', 0.8).toString();
+ ctx.lineWidth = 1;
+ ctx.lineJoin = "round";
+ ctx.fillStyle = c.scale('a', 0.4).toString();
+
+ var x = Math.min(selection.first.x, selection.second.x),
+ y = Math.min(selection.first.y, selection.second.y),
+ w = Math.abs(selection.second.x - selection.first.x),
+ h = Math.abs(selection.second.y - selection.first.y);
+
+ ctx.fillRect(x, y, w, h);
+ ctx.strokeRect(x, y, w, h);
+
+ ctx.restore();
+ }
+ });
+
+ plot.hooks.shutdown.push(function (plot, eventHolder) {
+ eventHolder.unbind("mousemove", onMouseMove);
+ eventHolder.unbind("mousedown", onMouseDown);
+
+ if (mouseUpHandler)
+ $(document).unbind("mouseup", mouseUpHandler);
+ });
+
+ }
+
+ $.plot.plugins.push({
+ init: init,
+ options: {
+ selection: {
+ mode: null, // one of null, "x", "y" or "xy"
+ color: "#e8cfac"
+ }
+ },
+ name: 'selection',
+ version: '1.1'
+ });
+})(jQuery);
diff --git a/ui/lib/flot/jquery.flot.stack.js b/ui/lib/flot/jquery.flot.stack.js
new file mode 100644
index 00000000000..a31d5dc9b58
--- /dev/null
+++ b/ui/lib/flot/jquery.flot.stack.js
@@ -0,0 +1,184 @@
+/*
+Flot plugin for stacking data sets, i.e. putting them on top of each
+other, for accumulative graphs.
+
+The plugin assumes the data is sorted on x (or y if stacking
+horizontally). For line charts, it is assumed that if a line has an
+undefined gap (from a null point), then the line above it should have
+the same gap - insert zeros instead of "null" if you want another
+behaviour. This also holds for the start and end of the chart. Note
+that stacking a mix of positive and negative values in most instances
+doesn't make sense (so it looks weird).
+
+Two or more series are stacked when their "stack" attribute is set to
+the same key (which can be any number or string or just "true"). To
+specify the default stack, you can set
+
+ series: {
+ stack: null or true or key (number/string)
+ }
+
+or specify it for a specific series
+
+ $.plot($("#placeholder"), [{ data: [ ... ], stack: true }])
+
+The stacking order is determined by the order of the data series in
+the array (later series end up on top of the previous).
+
+Internally, the plugin modifies the datapoints in each series, adding
+an offset to the y value. For line series, extra data points are
+inserted through interpolation. If there's a second y value, it's also
+adjusted (e.g for bar charts or filled areas).
+*/
+
+(function ($) {
+ var options = {
+ series: { stack: null } // or number/string
+ };
+
+ function init(plot) {
+ function findMatchingSeries(s, allseries) {
+ var res = null
+ for (var i = 0; i < allseries.length; ++i) {
+ if (s == allseries[i])
+ break;
+
+ if (allseries[i].stack == s.stack)
+ res = allseries[i];
+ }
+
+ return res;
+ }
+
+ function stackData(plot, s, datapoints) {
+ if (s.stack == null)
+ return;
+
+ var other = findMatchingSeries(s, plot.getData());
+ if (!other)
+ return;
+
+ var ps = datapoints.pointsize,
+ points = datapoints.points,
+ otherps = other.datapoints.pointsize,
+ otherpoints = other.datapoints.points,
+ newpoints = [],
+ px, py, intery, qx, qy, bottom,
+ withlines = s.lines.show,
+ horizontal = s.bars.horizontal,
+ withbottom = ps > 2 && (horizontal ? datapoints.format[2].x : datapoints.format[2].y),
+ withsteps = withlines && s.lines.steps,
+ fromgap = true,
+ keyOffset = horizontal ? 1 : 0,
+ accumulateOffset = horizontal ? 0 : 1,
+ i = 0, j = 0, l;
+
+ while (true) {
+ if (i >= points.length)
+ break;
+
+ l = newpoints.length;
+
+ if (points[i] == null) {
+ // copy gaps
+ for (m = 0; m < ps; ++m)
+ newpoints.push(points[i + m]);
+ i += ps;
+ }
+ else if (j >= otherpoints.length) {
+ // for lines, we can't use the rest of the points
+ if (!withlines) {
+ for (m = 0; m < ps; ++m)
+ newpoints.push(points[i + m]);
+ }
+ i += ps;
+ }
+ else if (otherpoints[j] == null) {
+ // oops, got a gap
+ for (m = 0; m < ps; ++m)
+ newpoints.push(null);
+ fromgap = true;
+ j += otherps;
+ }
+ else {
+ // cases where we actually got two points
+ px = points[i + keyOffset];
+ py = points[i + accumulateOffset];
+ qx = otherpoints[j + keyOffset];
+ qy = otherpoints[j + accumulateOffset];
+ bottom = 0;
+
+ if (px == qx) {
+ for (m = 0; m < ps; ++m)
+ newpoints.push(points[i + m]);
+
+ newpoints[l + accumulateOffset] += qy;
+ bottom = qy;
+
+ i += ps;
+ j += otherps;
+ }
+ else if (px > qx) {
+ // we got past point below, might need to
+ // insert interpolated extra point
+ if (withlines && i > 0 && points[i - ps] != null) {
+ intery = py + (points[i - ps + accumulateOffset] - py) * (qx - px) / (points[i - ps + keyOffset] - px);
+ newpoints.push(qx);
+ newpoints.push(intery + qy);
+ for (m = 2; m < ps; ++m)
+ newpoints.push(points[i + m]);
+ bottom = qy;
+ }
+
+ j += otherps;
+ }
+ else { // px < qx
+ if (fromgap && withlines) {
+ // if we come from a gap, we just skip this point
+ i += ps;
+ continue;
+ }
+
+ for (m = 0; m < ps; ++m)
+ newpoints.push(points[i + m]);
+
+ // we might be able to interpolate a point below,
+ // this can give us a better y
+ if (withlines && j > 0 && otherpoints[j - otherps] != null)
+ bottom = qy + (otherpoints[j - otherps + accumulateOffset] - qy) * (px - qx) / (otherpoints[j - otherps + keyOffset] - qx);
+
+ newpoints[l + accumulateOffset] += bottom;
+
+ i += ps;
+ }
+
+ fromgap = false;
+
+ if (l != newpoints.length && withbottom)
+ newpoints[l + 2] += bottom;
+ }
+
+ // maintain the line steps invariant
+ if (withsteps && l != newpoints.length && l > 0
+ && newpoints[l] != null
+ && newpoints[l] != newpoints[l - ps]
+ && newpoints[l + 1] != newpoints[l - ps + 1]) {
+ for (m = 0; m < ps; ++m)
+ newpoints[l + ps + m] = newpoints[l + m];
+ newpoints[l + 1] = newpoints[l - ps + 1];
+ }
+ }
+
+ datapoints.points = newpoints;
+ }
+
+ plot.hooks.processDatapoints.push(stackData);
+ }
+
+ $.plot.plugins.push({
+ init: init,
+ options: options,
+ name: 'stack',
+ version: '1.2'
+ });
+})(jQuery);
diff --git a/ui/lib/flot/jquery.flot.symbol.js b/ui/lib/flot/jquery.flot.symbol.js
new file mode 100644
index 00000000000..a32fe3185b2
--- /dev/null
+++ b/ui/lib/flot/jquery.flot.symbol.js
@@ -0,0 +1,70 @@
+/*
+Flot plugin that adds some extra symbols for plotting points.
+
+The symbols are accessed as strings through the standard symbol
+choice:
+
+ series: {
+ points: {
+ symbol: "square" // or "diamond", "triangle", "cross"
+ }
+ }
+
+*/
+
+(function ($) {
+ function processRawData(plot, series, datapoints) {
+ // we normalize the area of each symbol so it is approximately the
+ // same as a circle of the given radius
+
+ var handlers = {
+ square: function (ctx, x, y, radius, shadow) {
+ // pi * r^2 = (2s)^2 => s = r * sqrt(pi)/2
+ var size = radius * Math.sqrt(Math.PI) / 2;
+ ctx.rect(x - size, y - size, size + size, size + size);
+ },
+ diamond: function (ctx, x, y, radius, shadow) {
+ // pi * r^2 = 2s^2 => s = r * sqrt(pi/2)
+ var size = radius * Math.sqrt(Math.PI / 2);
+ ctx.moveTo(x - size, y);
+ ctx.lineTo(x, y - size);
+ ctx.lineTo(x + size, y);
+ ctx.lineTo(x, y + size);
+ ctx.lineTo(x - size, y);
+ },
+ triangle: function (ctx, x, y, radius, shadow) {
+ // pi * r^2 = 1/2 * s^2 * sin (pi / 3) => s = r * sqrt(2 * pi / sin(pi / 3))
+ var size = radius * Math.sqrt(2 * Math.PI / Math.sin(Math.PI / 3));
+ var height = size * Math.sin(Math.PI / 3);
+ ctx.moveTo(x - size/2, y + height/2);
+ ctx.lineTo(x + size/2, y + height/2);
+ if (!shadow) {
+ ctx.lineTo(x, y - height/2);
+ ctx.lineTo(x - size/2, y + height/2);
+ }
+ },
+ cross: function (ctx, x, y, radius, shadow) {
+ // pi * r^2 = (2s)^2 => s = r * sqrt(pi)/2
+ var size = radius * Math.sqrt(Math.PI) / 2;
+ ctx.moveTo(x - size, y - size);
+ ctx.lineTo(x + size, y + size);
+ ctx.moveTo(x - size, y + size);
+ ctx.lineTo(x + size, y - size);
+ }
+ }
+
+ var s = series.points.symbol;
+ if (handlers[s])
+ series.points.symbol = handlers[s];
+ }
+
+ function init(plot) {
+ plot.hooks.processDatapoints.push(processRawData);
+ }
+
+ $.plot.plugins.push({
+ init: init,
+ name: 'symbols',
+ version: '1.0'
+ });
+})(jQuery);
diff --git a/ui/lib/flot/jquery.flot.threshold.js b/ui/lib/flot/jquery.flot.threshold.js
new file mode 100644
index 00000000000..0b2e7ac82a7
--- /dev/null
+++ b/ui/lib/flot/jquery.flot.threshold.js
@@ -0,0 +1,103 @@
+/*
+Flot plugin for thresholding data. Controlled through the option
+"threshold" in either the global series options
+
+ series: {
+ threshold: {
+ below: number
+ color: colorspec
+ }
+ }
+
+or in a specific series
+
+ $.plot($("#placeholder"), [{ data: [ ... ], threshold: { ... }}])
+
+The data points below "below" are drawn with the specified color. This
+makes it easy to mark points below 0, e.g. for budget data.
+
+Internally, the plugin works by splitting the data into two series,
+above and below the threshold. The extra series below the threshold
+will have its label cleared and the special "originSeries" attribute
+set to the original series. You may need to check for this in hover
+events.
+*/
+
+(function ($) {
+ var options = {
+ series: { threshold: null } // or { below: number, color: color spec}
+ };
+
+ function init(plot) {
+ function thresholdData(plot, s, datapoints) {
+ if (!s.threshold)
+ return;
+
+ var ps = datapoints.pointsize, i, x, y, p, prevp,
+ thresholded = $.extend({}, s); // note: shallow copy
+
+ thresholded.datapoints = { points: [], pointsize: ps };
+ thresholded.label = null;
+ thresholded.color = s.threshold.color;
+ thresholded.threshold = null;
+ thresholded.originSeries = s;
+ thresholded.data = [];
+
+ var below = s.threshold.below,
+ origpoints = datapoints.points,
+ addCrossingPoints = s.lines.show;
+
+ threspoints = [];
+ newpoints = [];
+
+ for (i = 0; i < origpoints.length; i += ps) {
+ x = origpoints[i]
+ y = origpoints[i + 1];
+
+ prevp = p;
+ if (y < below)
+ p = threspoints;
+ else
+ p = newpoints;
+
+ if (addCrossingPoints && prevp != p && x != null
+ && i > 0 && origpoints[i - ps] != null) {
+ var interx = (x - origpoints[i - ps]) / (y - origpoints[i - ps + 1]) * (below - y) + x;
+ prevp.push(interx);
+ prevp.push(below);
+ for (m = 2; m < ps; ++m)
+ prevp.push(origpoints[i + m]);
+
+ p.push(null); // start new segment
+ p.push(null);
+ for (m = 2; m < ps; ++m)
+ p.push(origpoints[i + m]);
+ p.push(interx);
+ p.push(below);
+ for (m = 2; m < ps; ++m)
+ p.push(origpoints[i + m]);
+ }
+
+ p.push(x);
+ p.push(y);
+ }
+
+ datapoints.points = newpoints;
+ thresholded.datapoints.points = threspoints;
+
+ if (thresholded.datapoints.points.length > 0)
+ plot.getData().push(thresholded);
+
+ // FIXME: there are probably some edge cases left in bars
+ }
+
+ plot.hooks.processDatapoints.push(thresholdData);
+ }
+
+ $.plot.plugins.push({
+ init: init,
+ options: options,
+ name: 'threshold',
+ version: '1.0'
+ });
+})(jQuery);
diff --git a/ui/scripts/dashboard.js b/ui/scripts/dashboard.js
index 834e82188d3..9892e0d3aae 100644
--- a/ui/scripts/dashboard.js
+++ b/ui/scripts/dashboard.js
@@ -155,7 +155,7 @@
var hosts = json.listhostsresponse.host ?
json.listhostsresponse.host : [];
- complete($.extend(data, {
+ dataFns.zoneCapacity($.extend(data, {
hostAlerts: $.map(hosts, function(host) {
return {
name: host.name,
@@ -165,6 +165,67 @@
}));
}
});
+ },
+
+ zoneCapacity: function(data) {
+ $.ajax({
+ url: createURL('listZones'),
+ data: {
+ showCapacities: true
+ },
+ success: function(json) {
+ var zones = json.listzonesresponse.zone ?
+ json.listzonesresponse.zone : [];
+
+ var zoneCapacities = [];
+
+ $(zones).each(function() {
+ var zone = this;
+ var clusters;
+
+ // Get cluster-level data
+ $.ajax({
+ url: createURL('listClusters'),
+ data: {
+ zoneId: zone.id,
+ showCapacities: true
+ },
+ async: false,
+ success: function(json) {
+ var cluster = json.listclustersresponse.cluster;
+
+ $(cluster).each(function() {
+ var cluster = this;
+
+ $(cluster.capacity).each(function() {
+ var capacity = this;
+
+ zoneCapacities.push($.extend(capacity, {
+ zoneName: zone.name + '