diff --git a/app/assets/javascripts/app/lib/flot/excanvas.js b/app/assets/javascripts/app/lib/flot/excanvas.js new file mode 100755 index 000000000..c40d6f701 --- /dev/null +++ b/app/assets/javascripts/app/lib/flot/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(' ' , + '', + ''); + + this.element_.insertAdjacentHTML('BeforeEnd', vmlStr.join('')); + }; + + contextPrototype.stroke = function(aFill) { + var W = 10; + var H = 10; + // Divide the shape into chunks if it's too long because IE has a limit + // somewhere for how long a VML shape can be. This simple division does + // not work with fills, only strokes, unfortunately. + var chunkSize = 5000; + + var min = {x: null, y: null}; + var max = {x: null, y: null}; + + for (var j = 0; j < this.currentPath_.length; j += chunkSize) { + var lineStr = []; + var lineOpen = false; + + lineStr.push(''); + + 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( + '' + ); + } + + function appendFill(ctx, lineStr, min, max) { + var fillStyle = ctx.fillStyle; + var arcScaleX = ctx.arcScaleX_; + var arcScaleY = ctx.arcScaleY_; + var width = max.x - min.x; + var height = max.y - min.y; + if (fillStyle instanceof CanvasGradient_) { + // TODO: Gradients transformed with the transformation matrix. + var angle = 0; + var focus = {x: 0, y: 0}; + + // additional offset + var shift = 0; + // scale factor for offset + var expansion = 1; + + if (fillStyle.type_ == 'gradient') { + var x0 = fillStyle.x0_ / arcScaleX; + var y0 = fillStyle.y0_ / arcScaleY; + var x1 = fillStyle.x1_ / arcScaleX; + var y1 = fillStyle.y1_ / arcScaleY; + var p0 = ctx.getCoords_(x0, y0); + var p1 = ctx.getCoords_(x1, y1); + var dx = p1.x - p0.x; + var dy = p1.y - p0.y; + angle = Math.atan2(dx, dy) * 180 / Math.PI; + + // The angle should be a non-negative number. + if (angle < 0) { + angle += 360; + } + + // Very small angles produce an unexpected result because they are + // converted to a scientific notation string. + if (angle < 1e-6) { + angle = 0; + } + } else { + var p0 = ctx.getCoords_(fillStyle.x0_, fillStyle.y0_); + focus = { + x: (p0.x - min.x) / width, + y: (p0.y - min.y) / height + }; + + width /= arcScaleX * Z; + height /= arcScaleY * Z; + var dimension = m.max(width, height); + shift = 2 * fillStyle.r0_ / dimension; + expansion = 2 * fillStyle.r1_ / dimension - shift; + } + + // We need to sort the color stops in ascending order by offset, + // otherwise IE won't interpret it correctly. + var stops = fillStyle.colors_; + stops.sort(function(cs1, cs2) { + return cs1.offset - cs2.offset; + }); + + var length = stops.length; + var color1 = stops[0].color; + var color2 = stops[length - 1].color; + var opacity1 = stops[0].alpha * ctx.globalAlpha; + var opacity2 = stops[length - 1].alpha * ctx.globalAlpha; + + var colors = []; + for (var i = 0; i < length; i++) { + var stop = stops[i]; + colors.push(stop.offset * expansion + shift + ' ' + stop.color); + } + + // When colors attribute is used, the meanings of opacity and o:opacity2 + // are reversed. + lineStr.push(''); + } else if (fillStyle instanceof CanvasPattern_) { + if (width && height) { + var deltaLeft = -min.x; + var deltaTop = -min.y; + lineStr.push(''); + } + } else { + var a = processStyle(ctx.fillStyle); + var color = a.color; + var opacity = a.alpha * ctx.globalAlpha; + lineStr.push(''); + } + } + + contextPrototype.fill = function() { + this.stroke(true); + }; + + contextPrototype.closePath = function() { + this.currentPath_.push({type: 'close'}); + }; + + /** + * @private + */ + contextPrototype.getCoords_ = function(aX, aY) { + var m = this.m_; + return { + x: Z * (aX * m[0][0] + aY * m[1][0] + m[2][0]) - Z2, + y: Z * (aX * m[0][1] + aY * m[1][1] + m[2][1]) - Z2 + }; + }; + + contextPrototype.save = function() { + var o = {}; + copyState(this, o); + this.aStack_.push(o); + this.mStack_.push(this.m_); + this.m_ = matrixMultiply(createMatrixIdentity(), this.m_); + }; + + contextPrototype.restore = function() { + if (this.aStack_.length) { + copyState(this.aStack_.pop(), this); + this.m_ = this.mStack_.pop(); + } + }; + + function matrixIsFinite(m) { + return isFinite(m[0][0]) && isFinite(m[0][1]) && + isFinite(m[1][0]) && isFinite(m[1][1]) && + isFinite(m[2][0]) && isFinite(m[2][1]); + } + + function setM(ctx, m, updateLineScale) { + if (!matrixIsFinite(m)) { + return; + } + ctx.m_ = m; + + if (updateLineScale) { + // Get the line scale. + // Determinant of this.m_ means how much the area is enlarged by the + // transformation. So its square root can be used as a scale factor + // for width. + var det = m[0][0] * m[1][1] - m[0][1] * m[1][0]; + ctx.lineScale_ = sqrt(abs(det)); + } + } + + contextPrototype.translate = function(aX, aY) { + var m1 = [ + [1, 0, 0], + [0, 1, 0], + [aX, aY, 1] + ]; + + setM(this, matrixMultiply(m1, this.m_), false); + }; + + contextPrototype.rotate = function(aRot) { + var c = mc(aRot); + var s = ms(aRot); + + var m1 = [ + [c, s, 0], + [-s, c, 0], + [0, 0, 1] + ]; + + setM(this, matrixMultiply(m1, this.m_), false); + }; + + contextPrototype.scale = function(aX, aY) { + this.arcScaleX_ *= aX; + this.arcScaleY_ *= aY; + var m1 = [ + [aX, 0, 0], + [0, aY, 0], + [0, 0, 1] + ]; + + setM(this, matrixMultiply(m1, this.m_), true); + }; + + contextPrototype.transform = function(m11, m12, m21, m22, dx, dy) { + var m1 = [ + [m11, m12, 0], + [m21, m22, 0], + [dx, dy, 1] + ]; + + setM(this, matrixMultiply(m1, this.m_), true); + }; + + contextPrototype.setTransform = function(m11, m12, m21, m22, dx, dy) { + var m = [ + [m11, m12, 0], + [m21, m22, 0], + [dx, dy, 1] + ]; + + setM(this, m, true); + }; + + /** + * The text drawing function. + * The maxWidth argument isn't taken in account, since no browser supports + * it yet. + */ + contextPrototype.drawText_ = function(text, x, y, maxWidth, stroke) { + var m = this.m_, + delta = 1000, + left = 0, + right = delta, + offset = {x: 0, y: 0}, + lineStr = []; + + var fontStyle = getComputedStyle(processFontStyle(this.font), + this.element_); + + var fontStyleString = buildStyle(fontStyle); + + var elementStyle = this.element_.currentStyle; + var textAlign = this.textAlign.toLowerCase(); + switch (textAlign) { + case 'left': + case 'center': + case 'right': + break; + case 'end': + textAlign = elementStyle.direction == 'ltr' ? 'right' : 'left'; + break; + case 'start': + textAlign = elementStyle.direction == 'rtl' ? 'right' : 'left'; + break; + default: + textAlign = 'left'; + } + + // 1.75 is an arbitrary number, as there is no info about the text baseline + switch (this.textBaseline) { + case 'hanging': + case 'top': + offset.y = fontStyle.size / 1.75; + break; + case 'middle': + break; + default: + case null: + case 'alphabetic': + case 'ideographic': + case 'bottom': + offset.y = -fontStyle.size / 2.25; + break; + } + + switch(textAlign) { + case 'right': + left = delta; + right = 0.05; + break; + case 'center': + left = right = delta / 2; + break; + } + + var d = this.getCoords_(x + offset.x, y + offset.y); + + lineStr.push(''); + + 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 = ''; + this.element_.insertAdjacentHTML('beforeEnd', s); + this.textMeasureEl_ = this.element_.lastChild; + } + var doc = this.element_.ownerDocument; + this.textMeasureEl_.innerHTML = ''; + this.textMeasureEl_.style.font = this.font; + // Don't use innerHTML or innerText because they allow markup/whitespace. + this.textMeasureEl_.appendChild(doc.createTextNode(text)); + return {width: this.textMeasureEl_.offsetWidth}; + }; + + /******** STUBS ********/ + contextPrototype.clip = function() { + // TODO: Implement + }; + + contextPrototype.arcTo = function() { + // TODO: Implement + }; + + contextPrototype.createPattern = function(image, repetition) { + return new CanvasPattern_(image, repetition); + }; + + // Gradient / Pattern Stubs + function CanvasGradient_(aType) { + this.type_ = aType; + this.x0_ = 0; + this.y0_ = 0; + this.r0_ = 0; + this.x1_ = 0; + this.y1_ = 0; + this.r1_ = 0; + this.colors_ = []; + } + + CanvasGradient_.prototype.addColorStop = function(aOffset, aColor) { + aColor = processStyle(aColor); + this.colors_.push({offset: aOffset, + color: aColor.color, + alpha: aColor.alpha}); + }; + + function CanvasPattern_(image, repetition) { + assertImageIsValid(image); + switch (repetition) { + case 'repeat': + case null: + case '': + this.repetition_ = 'repeat'; + break + case 'repeat-x': + case 'repeat-y': + case 'no-repeat': + this.repetition_ = repetition; + break; + default: + throwException('SYNTAX_ERR'); + } + + this.src_ = image.src; + this.width_ = image.width; + this.height_ = image.height; + } + + function throwException(s) { + throw new DOMException_(s); + } + + function assertImageIsValid(img) { + if (!img || img.nodeType != 1 || img.tagName != 'IMG') { + throwException('TYPE_MISMATCH_ERR'); + } + if (img.readyState != 'complete') { + throwException('INVALID_STATE_ERR'); + } + } + + function DOMException_(s) { + this.code = this[s]; + this.message = s +': DOM Exception ' + this.code; + } + var p = DOMException_.prototype = new Error; + p.INDEX_SIZE_ERR = 1; + p.DOMSTRING_SIZE_ERR = 2; + p.HIERARCHY_REQUEST_ERR = 3; + p.WRONG_DOCUMENT_ERR = 4; + p.INVALID_CHARACTER_ERR = 5; + p.NO_DATA_ALLOWED_ERR = 6; + p.NO_MODIFICATION_ALLOWED_ERR = 7; + p.NOT_FOUND_ERR = 8; + p.NOT_SUPPORTED_ERR = 9; + p.INUSE_ATTRIBUTE_ERR = 10; + p.INVALID_STATE_ERR = 11; + p.SYNTAX_ERR = 12; + p.INVALID_MODIFICATION_ERR = 13; + p.NAMESPACE_ERR = 14; + p.INVALID_ACCESS_ERR = 15; + p.VALIDATION_ERR = 16; + p.TYPE_MISMATCH_ERR = 17; + + // set up externs + G_vmlCanvasManager = G_vmlCanvasManager_; + CanvasRenderingContext2D = CanvasRenderingContext2D_; + CanvasGradient = CanvasGradient_; + CanvasPattern = CanvasPattern_; + DOMException = DOMException_; +})(); + +} // if diff --git a/app/assets/javascripts/app/lib/flot/excanvas.min.js b/app/assets/javascripts/app/lib/flot/excanvas.min.js new file mode 100755 index 000000000..12c74f7be --- /dev/null +++ b/app/assets/javascripts/app/lib/flot/excanvas.min.js @@ -0,0 +1 @@ +if(!document.createElement("canvas").getContext){(function(){var z=Math;var K=z.round;var J=z.sin;var U=z.cos;var b=z.abs;var k=z.sqrt;var D=10;var F=D/2;function T(){return this.context_||(this.context_=new W(this))}var O=Array.prototype.slice;function G(i,j,m){var Z=O.call(arguments,2);return function(){return i.apply(j,Z.concat(O.call(arguments)))}}function AD(Z){return String(Z).replace(/&/g,"&").replace(/"/g,""")}function 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license by Ole Laursen, October 2009. + * + * Examples: + * + * $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString() + * var c = $.color.extract($("#mydiv"), 'background-color'); + * console.log(c.r, c.g, c.b, c.a); + * $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)" + * + * Note that .scale() and .add() return the same modified object + * instead of making a new one. + * + * V. 1.1: Fix error handling so e.g. parsing an empty string does + * produce a color rather than just crashing. + */ + +(function($) { + $.color = {}; + + // construct color object with some convenient chainable helpers + $.color.make = function (r, g, b, a) { + var o = {}; + o.r = r || 0; + o.g = g || 0; + o.b = b || 0; + o.a = a != null ? a : 1; + + o.add = function (c, d) { + for (var i = 0; i < c.length; ++i) + o[c.charAt(i)] += d; + return o.normalize(); + }; + + o.scale = function (c, f) { + for (var i = 0; i < c.length; ++i) + o[c.charAt(i)] *= f; + return o.normalize(); + }; + + o.toString = function () { + if (o.a >= 1.0) { + return "rgb("+[o.r, o.g, o.b].join(",")+")"; + } else { + return "rgba("+[o.r, o.g, o.b, o.a].join(",")+")"; + } + }; + + o.normalize = function () { + function clamp(min, value, max) { + return value < min ? min: (value > max ? max: value); + } + + o.r = clamp(0, parseInt(o.r), 255); + o.g = clamp(0, parseInt(o.g), 255); + o.b = clamp(0, parseInt(o.b), 255); + o.a = clamp(0, o.a, 1); + return o; + }; + + o.clone = function () { + return $.color.make(o.r, o.b, o.g, o.a); + }; + + return o.normalize(); + } + + // extract CSS color property from element, going up in the DOM + // if it's "transparent" + $.color.extract = function (elem, css) { + var c; + do { + c = elem.css(css).toLowerCase(); + // keep going until we find an element that has color, or + // we hit the body + if (c != '' && c != 'transparent') + break; + elem = elem.parent(); + } while (!$.nodeName(elem.get(0), "body")); + + // catch Safari's way of signalling transparent + if (c == "rgba(0, 0, 0, 0)") + c = "transparent"; + + return $.color.parse(c); + } + + // parse CSS color string (like "rgb(10, 32, 43)" or "#fff"), + // returns color object, if parsing failed, you get black (0, 0, + // 0) out + $.color.parse = function (str) { + var res, m = $.color.make; + + // Look for rgb(num,num,num) + if (res = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(str)) + return m(parseInt(res[1], 10), parseInt(res[2], 10), parseInt(res[3], 10)); + + // Look for rgba(num,num,num,num) + if (res = /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(str)) + return m(parseInt(res[1], 10), parseInt(res[2], 10), parseInt(res[3], 10), parseFloat(res[4])); + + // Look for rgb(num%,num%,num%) + if (res = /rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(str)) + return m(parseFloat(res[1])*2.55, parseFloat(res[2])*2.55, parseFloat(res[3])*2.55); + + // Look for rgba(num%,num%,num%,num) + if (res = /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(str)) + return m(parseFloat(res[1])*2.55, parseFloat(res[2])*2.55, parseFloat(res[3])*2.55, parseFloat(res[4])); + + // Look for #a0b1c2 + if (res = /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(str)) + return m(parseInt(res[1], 16), parseInt(res[2], 16), parseInt(res[3], 16)); + + // Look for #fff + if (res = /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(str)) + return m(parseInt(res[1]+res[1], 16), parseInt(res[2]+res[2], 16), parseInt(res[3]+res[3], 16)); + + // Otherwise, we're most likely dealing with a named color + var name = $.trim(str).toLowerCase(); + if (name == "transparent") + return m(255, 255, 255, 0); + else { + // default to black + res = lookupColors[name] || [0, 0, 0]; + return m(res[0], res[1], res[2]); + } + } + + var lookupColors = { + 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); diff --git a/app/assets/javascripts/app/lib/flot/jquery.flot.crosshair.js b/app/assets/javascripts/app/lib/flot/jquery.flot.crosshair.js new file mode 100755 index 000000000..1d433f007 --- /dev/null +++ b/app/assets/javascripts/app/lib/flot/jquery.flot.crosshair.js @@ -0,0 +1,167 @@ +/* +Flot plugin for showing crosshairs, thin lines, when the mouse hovers +over the plot. + + crosshair: { + mode: null or "x" or "y" or "xy" + color: color + lineWidth: number + } + +Set the mode to one of "x", "y" or "xy". The "x" mode enables a +vertical crosshair that lets you trace the values on the x axis, "y" +enables a horizontal crosshair and "xy" enables them both. "color" is +the color of the crosshair (default is "rgba(170, 0, 0, 0.80)"), +"lineWidth" is the width of the drawn lines (default is 1). + +The plugin also adds four public methods: + + - setCrosshair(pos) + + Set the position of the crosshair. Note that this is cleared if + the user moves the mouse. "pos" is in coordinates of the plot and + should be on the form { x: xpos, y: ypos } (you can use x2/x3/... + if you're using multiple axes), which is coincidentally the same + format as what you get from a "plothover" event. If "pos" is null, + the crosshair is cleared. + + - clearCrosshair() + + Clear the crosshair. + + - lockCrosshair(pos) + + Cause the crosshair to lock to the current location, no longer + updating if the user moves the mouse. Optionally supply a position + (passed on to setCrosshair()) to move it to. + + Example usage: + var myFlot = $.plot( $("#graph"), ..., { crosshair: { mode: "x" } } }; + $("#graph").bind("plothover", function (evt, position, item) { + if (item) { + // Lock the crosshair to the data point being hovered + myFlot.lockCrosshair({ x: item.datapoint[0], y: item.datapoint[1] }); + } + else { + // Return normal crosshair operation + myFlot.unlockCrosshair(); + } + }); + + - unlockCrosshair() + + Free the crosshair to move again after locking it. +*/ + +(function ($) { + var options = { + crosshair: { + mode: null, // one of null, "x", "y" or "xy", + color: "rgba(170, 0, 0, 0.80)", + lineWidth: 1 + } + }; + + function init(plot) { + // position of crosshair in pixels + var crosshair = { x: -1, y: -1, locked: false }; + + plot.setCrosshair = function setCrosshair(pos) { + if (!pos) + crosshair.x = -1; + else { + var o = plot.p2c(pos); + crosshair.x = Math.max(0, Math.min(o.left, plot.width())); + crosshair.y = Math.max(0, Math.min(o.top, plot.height())); + } + + plot.triggerRedrawOverlay(); + }; + + plot.clearCrosshair = plot.setCrosshair; // passes null for pos + + plot.lockCrosshair = function lockCrosshair(pos) { + if (pos) + plot.setCrosshair(pos); + crosshair.locked = true; + } + + plot.unlockCrosshair = function unlockCrosshair() { + crosshair.locked = false; + } + + function onMouseOut(e) { + if (crosshair.locked) + return; + + if (crosshair.x != -1) { + crosshair.x = -1; + plot.triggerRedrawOverlay(); + } + } + + function onMouseMove(e) { + if (crosshair.locked) + return; + + if (plot.getSelection && plot.getSelection()) { + crosshair.x = -1; // hide the crosshair while selecting + return; + } + + var offset = plot.offset(); + crosshair.x = Math.max(0, Math.min(e.pageX - offset.left, plot.width())); + crosshair.y = Math.max(0, Math.min(e.pageY - offset.top, plot.height())); + plot.triggerRedrawOverlay(); + } + + plot.hooks.bindEvents.push(function (plot, eventHolder) { + if (!plot.getOptions().crosshair.mode) + return; + + eventHolder.mouseout(onMouseOut); + eventHolder.mousemove(onMouseMove); + }); + + plot.hooks.drawOverlay.push(function (plot, ctx) { + var c = plot.getOptions().crosshair; + if (!c.mode) + return; + + var plotOffset = plot.getPlotOffset(); + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + + if (crosshair.x != -1) { + ctx.strokeStyle = c.color; + ctx.lineWidth = c.lineWidth; + ctx.lineJoin = "round"; + + ctx.beginPath(); + if (c.mode.indexOf("x") != -1) { + ctx.moveTo(crosshair.x, 0); + ctx.lineTo(crosshair.x, plot.height()); + } + if (c.mode.indexOf("y") != -1) { + ctx.moveTo(0, crosshair.y); + ctx.lineTo(plot.width(), crosshair.y); + } + ctx.stroke(); + } + ctx.restore(); + }); + + plot.hooks.shutdown.push(function (plot, eventHolder) { + eventHolder.unbind("mouseout", onMouseOut); + eventHolder.unbind("mousemove", onMouseMove); + }); + } + + $.plot.plugins.push({ + init: init, + options: options, + name: 'crosshair', + version: '1.0' + }); +})(jQuery); diff --git a/app/assets/javascripts/app/lib/flot/jquery.flot.fillbetween.js b/app/assets/javascripts/app/lib/flot/jquery.flot.fillbetween.js new file mode 100755 index 000000000..69700e79c --- /dev/null +++ b/app/assets/javascripts/app/lib/flot/jquery.flot.fillbetween.js @@ -0,0 +1,183 @@ +/* +Flot plugin for computing bottoms for filled line and bar charts. + +The case: you've got two series that you want to fill the area +between. In Flot terms, you need to use one as the fill bottom of the +other. You can specify the bottom of each data point as the third +coordinate manually, or you can use this plugin to compute it for you. + +In order to name the other series, you need to give it an id, like this + + var dataset = [ + { data: [ ... ], id: "foo" } , // use default bottom + { data: [ ... ], fillBetween: "foo" }, // use first dataset as bottom + ]; + + $.plot($("#placeholder"), dataset, { line: { show: true, fill: true }}); + +As a convenience, if the id given is a number that doesn't appear as +an id in the series, it is interpreted as the index in the array +instead (so fillBetween: 0 can also mean the first series). + +Internally, the plugin modifies the datapoints in each series. For +line series, extra data points might be inserted through +interpolation. Note that at points where the bottom line is not +defined (due to a null point or start/end of line), the current line +will show a gap too. The algorithm comes from the jquery.flot.stack.js +plugin, possibly some code could be shared. +*/ + +(function ($) { + var options = { + series: { fillBetween: null } // or number + }; + + function init(plot) { + function findBottomSeries(s, allseries) { + var i; + for (i = 0; i < allseries.length; ++i) { + if (allseries[i].id == s.fillBetween) + return allseries[i]; + } + + if (typeof s.fillBetween == "number") { + i = s.fillBetween; + + if (i < 0 || i >= allseries.length) + return null; + + return allseries[i]; + } + + return null; + } + + function computeFillBottoms(plot, s, datapoints) { + if (s.fillBetween == null) + return; + + var other = findBottomSeries(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, + withbottom = ps > 2 && datapoints.format[2].y, + withsteps = withlines && s.lines.steps, + fromgap = true, + 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]; + py = points[i + 1]; + qx = otherpoints[j]; + qy = otherpoints[j + 1]; + bottom = 0; + + if (px == qx) { + for (m = 0; m < ps; ++m) + newpoints.push(points[i + m]); + + //newpoints[l + 1] += 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 + 1] - py) * (qx - px) / (points[i - ps] - px); + newpoints.push(qx); + newpoints.push(intery) + 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 + 1] - qy) * (px - qx) / (otherpoints[j - otherps] - qx); + + //newpoints[l + 1] += 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(computeFillBottoms); + } + + $.plot.plugins.push({ + init: init, + options: options, + name: 'fillbetween', + version: '1.0' + }); +})(jQuery); diff --git a/app/assets/javascripts/app/lib/flot/jquery.flot.image.js b/app/assets/javascripts/app/lib/flot/jquery.flot.image.js new file mode 100755 index 000000000..29ccb125f --- /dev/null +++ b/app/assets/javascripts/app/lib/flot/jquery.flot.image.js @@ -0,0 +1,238 @@ +/* +Flot plugin for plotting images, e.g. useful for putting ticks on a +prerendered complex visualization. + +The data syntax is [[image, x1, y1, x2, y2], ...] where (x1, y1) and +(x2, y2) are where you intend the two opposite corners of the image to +end up in the plot. Image must be a fully loaded Javascript image (you +can make one with new Image()). If the image is not complete, it's +skipped when plotting. + +There are two helpers included for retrieving images. The easiest work +the way that you put in URLs instead of images in the data (like +["myimage.png", 0, 0, 10, 10]), then call $.plot.image.loadData(data, +options, callback) where data and options are the same as you pass in +to $.plot. This loads the images, replaces the URLs in the data with +the corresponding images and calls "callback" when all images are +loaded (or failed loading). In the callback, you can then call $.plot +with the data set. See the included example. + +A more low-level helper, $.plot.image.load(urls, callback) is also +included. Given a list of URLs, it calls callback with an object +mapping from URL to Image object when all images are loaded or have +failed loading. + +Options for the plugin are + + series: { + images: { + show: boolean + anchor: "corner" or "center" + alpha: [0,1] + } + } + +which can be specified for a specific series + + $.plot($("#placeholder"), [{ data: [ ... ], images: { ... } ]) + +Note that because the data format is different from usual data points, +you can't use images with anything else in a specific data series. + +Setting "anchor" to "center" causes the pixels in the image to be +anchored at the corner pixel centers inside of at the pixel corners, +effectively letting half a pixel stick out to each side in the plot. + + +A possible future direction could be support for tiling for large +images (like Google Maps). + +*/ + +(function ($) { + var options = { + series: { + images: { + show: false, + alpha: 1, + anchor: "corner" // or "center" + } + } + }; + + $.plot.image = {}; + + $.plot.image.loadDataImages = function (series, options, callback) { + var urls = [], points = []; + + var defaultShow = options.series.images.show; + + $.each(series, function (i, s) { + if (!(defaultShow || s.images.show)) + return; + + if (s.data) + s = s.data; + + $.each(s, function (i, p) { + if (typeof p[0] == "string") { + urls.push(p[0]); + points.push(p); + } + }); + }); + + $.plot.image.load(urls, function (loadedImages) { + $.each(points, function (i, p) { + var url = p[0]; + if (loadedImages[url]) + p[0] = loadedImages[url]; + }); + + callback(); + }); + } + + $.plot.image.load = function (urls, callback) { + var missing = urls.length, loaded = {}; + if (missing == 0) + callback({}); + + $.each(urls, function (i, url) { + var handler = function () { + --missing; + + loaded[url] = this; + + if (missing == 0) + callback(loaded); + }; + + $('').load(handler).error(handler).attr('src', url); + }); + } + + function drawSeries(plot, ctx, series) { + var plotOffset = plot.getPlotOffset(); + + if (!series.images || !series.images.show) + return; + + var points = series.datapoints.points, + ps = series.datapoints.pointsize; + + for (var i = 0; i < points.length; i += ps) { + var img = points[i], + x1 = points[i + 1], y1 = points[i + 2], + x2 = points[i + 3], y2 = points[i + 4], + xaxis = series.xaxis, yaxis = series.yaxis, + tmp; + + // actually we should check img.complete, but it + // appears to be a somewhat unreliable indicator in + // IE6 (false even after load event) + if (!img || img.width <= 0 || img.height <= 0) + continue; + + if (x1 > x2) { + tmp = x2; + x2 = x1; + x1 = tmp; + } + if (y1 > y2) { + tmp = y2; + y2 = y1; + y1 = tmp; + } + + // if the anchor is at the center of the pixel, expand the + // image by 1/2 pixel in each direction + if (series.images.anchor == "center") { + tmp = 0.5 * (x2-x1) / (img.width - 1); + x1 -= tmp; + x2 += tmp; + tmp = 0.5 * (y2-y1) / (img.height - 1); + y1 -= tmp; + y2 += tmp; + } + + // clip + if (x1 == x2 || y1 == y2 || + x1 >= xaxis.max || x2 <= xaxis.min || + y1 >= yaxis.max || y2 <= yaxis.min) + continue; + + var sx1 = 0, sy1 = 0, sx2 = img.width, sy2 = img.height; + if (x1 < xaxis.min) { + sx1 += (sx2 - sx1) * (xaxis.min - x1) / (x2 - x1); + x1 = xaxis.min; + } + + if (x2 > xaxis.max) { + sx2 += (sx2 - sx1) * (xaxis.max - x2) / (x2 - x1); + x2 = xaxis.max; + } + + if (y1 < yaxis.min) { + sy2 += (sy1 - sy2) * (yaxis.min - y1) / (y2 - y1); + y1 = yaxis.min; + } + + if (y2 > yaxis.max) { + sy1 += (sy1 - sy2) * (yaxis.max - y2) / (y2 - y1); + y2 = yaxis.max; + } + + x1 = xaxis.p2c(x1); + x2 = xaxis.p2c(x2); + y1 = yaxis.p2c(y1); + y2 = yaxis.p2c(y2); + + // the transformation may have swapped us + if (x1 > x2) { + tmp = x2; + x2 = x1; + x1 = tmp; + } + if (y1 > y2) { + tmp = y2; + y2 = y1; + y1 = tmp; + } + + tmp = ctx.globalAlpha; + ctx.globalAlpha *= series.images.alpha; + ctx.drawImage(img, + sx1, sy1, sx2 - sx1, sy2 - sy1, + x1 + plotOffset.left, y1 + plotOffset.top, + x2 - x1, y2 - y1); + ctx.globalAlpha = tmp; + } + } + + function processRawData(plot, series, data, datapoints) { + if (!series.images.show) + return; + + // format is Image, x1, y1, x2, y2 (opposite corners) + datapoints.format = [ + { required: true }, + { x: true, number: true, required: true }, + { y: true, number: true, required: true }, + { x: true, number: true, required: true }, + { y: true, number: true, required: true } + ]; + } + + function init(plot) { + plot.hooks.processRawData.push(processRawData); + plot.hooks.drawSeries.push(drawSeries); + } + + $.plot.plugins.push({ + init: init, + options: options, + name: 'image', + version: '1.1' + }); +})(jQuery); diff --git a/app/assets/javascripts/app/lib/flot/jquery.flot.js b/app/assets/javascripts/app/lib/flot/jquery.flot.js new file mode 100755 index 000000000..aabc544e9 --- /dev/null +++ b/app/assets/javascripts/app/lib/flot/jquery.flot.js @@ -0,0 +1,2599 @@ +/*! Javascript plotting library for jQuery, v. 0.7. + * + * Released under the MIT license by IOLA, December 2007. + * + */ + +// first an inline dependency, jquery.colorhelpers.js, we inline it here +// for convenience + +/* Plugin for jQuery for working with colors. + * + * Version 1.1. + * + * Inspiration from jQuery color animation plugin by John Resig. + * + * Released under the MIT license by Ole Laursen, October 2009. + * + * Examples: + * + * $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString() + * var c = $.color.extract($("#mydiv"), 'background-color'); + * console.log(c.r, c.g, c.b, c.a); + * $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)" + * + * Note that .scale() and .add() return the same modified object + * instead of making a new one. + * + * V. 1.1: Fix error handling so e.g. parsing an empty string does + * produce a color rather than just crashing. + */ +(function(B){B.color={};B.color.make=function(F,E,C,D){var G={};G.r=F||0;G.g=E||0;G.b=C||0;G.a=D!=null?D:1;G.add=function(J,I){for(var H=0;H=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("") + '
') + .appendTo(placeholder); + } + + if (axis.direction == "x") { + // to avoid measuring the widths of the labels (it's slow), we + // construct fixed-size boxes and put the labels inside + // them, we don't need the exact figures and the + // fixed-size box content is easy to center + if (w == null) + w = Math.floor(canvasWidth / (ticks.length > 0 ? ticks.length : 1)); + + // measure x label heights + if (h == null) { + labels = []; + for (i = 0; i < ticks.length; ++i) { + l = ticks[i].label; + if (l) + labels.push('
' + 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('
'); + + placeholder.append(html.join("")); + } + + function drawSeries(series) { + if (series.lines.show) + drawSeriesLines(series); + if (series.bars.show) + drawSeriesBars(series); + if (series.points.show) + drawSeriesPoints(series); + } + + function drawSeriesLines(series) { + function plotLine(datapoints, xoffset, yoffset, axisx, axisy) { + var points = datapoints.points, + ps = datapoints.pointsize, + prevx = null, prevy = null; + + ctx.beginPath(); + for (var i = ps; i < points.length; i += ps) { + var x1 = points[i - ps], y1 = points[i - ps + 1], + x2 = points[i], y2 = points[i + 1]; + + if (x1 == null || x2 == null) + continue; + + // clip with ymin + if (y1 <= y2 && y1 < axisy.min) { + if (y2 < axisy.min) + continue; // line segment is outside + // compute new intersection point + x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; + y1 = axisy.min; + } + else if (y2 <= y1 && y2 < axisy.min) { + if (y1 < axisy.min) + continue; + x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; + y2 = axisy.min; + } + + // clip with ymax + if (y1 >= y2 && y1 > axisy.max) { + if (y2 > axisy.max) + continue; + x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; + y1 = axisy.max; + } + else if (y2 >= y1 && y2 > axisy.max) { + if (y1 > axisy.max) + continue; + x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; + y2 = axisy.max; + } + + // clip with xmin + if (x1 <= x2 && x1 < axisx.min) { + if (x2 < axisx.min) + continue; + y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; + x1 = axisx.min; + } + else if (x2 <= x1 && x2 < axisx.min) { + if (x1 < axisx.min) + continue; + y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; + x2 = axisx.min; + } + + // clip with xmax + if (x1 >= x2 && x1 > axisx.max) { + if (x2 > axisx.max) + continue; + y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; + x1 = axisx.max; + } + else if (x2 >= x1 && x2 > axisx.max) { + if (x1 > axisx.max) + continue; + y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; + x2 = axisx.max; + } + + if (x1 != prevx || y1 != prevy) + ctx.moveTo(axisx.p2c(x1) + xoffset, axisy.p2c(y1) + yoffset); + + prevx = x2; + prevy = y2; + ctx.lineTo(axisx.p2c(x2) + xoffset, axisy.p2c(y2) + yoffset); + } + ctx.stroke(); + } + + function plotLineArea(datapoints, axisx, axisy) { + var points = datapoints.points, + ps = datapoints.pointsize, + bottom = Math.min(Math.max(0, axisy.min), axisy.max), + i = 0, top, areaOpen = false, + ypos = 1, segmentStart = 0, segmentEnd = 0; + + // we process each segment in two turns, first forward + // direction to sketch out top, then once we hit the + // end we go backwards to sketch the bottom + while (true) { + if (ps > 0 && i > points.length + ps) + break; + + i += ps; // ps is negative if going backwards + + var x1 = points[i - ps], + y1 = points[i - ps + ypos], + x2 = points[i], y2 = points[i + ypos]; + + if (areaOpen) { + if (ps > 0 && x1 != null && x2 == null) { + // at turning point + segmentEnd = i; + ps = -ps; + ypos = 2; + continue; + } + + if (ps < 0 && i == segmentStart + ps) { + // done with the reverse sweep + ctx.fill(); + areaOpen = false; + ps = -ps; + ypos = 1; + i = segmentStart = segmentEnd + ps; + continue; + } + } + + if (x1 == null || x2 == null) + continue; + + // clip x values + + // clip with xmin + if (x1 <= x2 && x1 < axisx.min) { + if (x2 < axisx.min) + continue; + y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; + x1 = axisx.min; + } + else if (x2 <= x1 && x2 < axisx.min) { + if (x1 < axisx.min) + continue; + y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; + x2 = axisx.min; + } + + // clip with xmax + if (x1 >= x2 && x1 > axisx.max) { + if (x2 > axisx.max) + continue; + y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; + x1 = axisx.max; + } + else if (x2 >= x1 && x2 > axisx.max) { + if (x1 > axisx.max) + continue; + y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; + x2 = axisx.max; + } + + if (!areaOpen) { + // open area + ctx.beginPath(); + ctx.moveTo(axisx.p2c(x1), axisy.p2c(bottom)); + areaOpen = true; + } + + // now first check the case where both is outside + if (y1 >= axisy.max && y2 >= axisy.max) { + ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.max)); + ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.max)); + continue; + } + else if (y1 <= axisy.min && y2 <= axisy.min) { + ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.min)); + ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.min)); + continue; + } + + // else it's a bit more complicated, there might + // be a flat maxed out rectangle first, then a + // triangular cutout or reverse; to find these + // keep track of the current x values + var x1old = x1, x2old = x2; + + // clip the y values, without shortcutting, we + // go through all cases in turn + + // clip with ymin + if (y1 <= y2 && y1 < axisy.min && y2 >= axisy.min) { + x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; + y1 = axisy.min; + } + else if (y2 <= y1 && y2 < axisy.min && y1 >= axisy.min) { + x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; + y2 = axisy.min; + } + + // clip with ymax + if (y1 >= y2 && y1 > axisy.max && y2 <= axisy.max) { + x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; + y1 = axisy.max; + } + else if (y2 >= y1 && y2 > axisy.max && y1 <= axisy.max) { + x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; + y2 = axisy.max; + } + + // if the x value was changed we got a rectangle + // to fill + if (x1 != x1old) { + ctx.lineTo(axisx.p2c(x1old), axisy.p2c(y1)); + // it goes to (x1, y1), but we fill that below + } + + // fill triangular section, this sometimes result + // in redundant points if (x1, y1) hasn't changed + // from previous line to, but we just ignore that + ctx.lineTo(axisx.p2c(x1), axisy.p2c(y1)); + ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2)); + + // fill the other rectangle if it's there + if (x2 != x2old) { + ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2)); + ctx.lineTo(axisx.p2c(x2old), axisy.p2c(y2)); + } + } + } + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + ctx.lineJoin = "round"; + + var lw = series.lines.lineWidth, + sw = series.shadowSize; + // FIXME: consider another form of shadow when filling is turned on + if (lw > 0 && sw > 0) { + // draw shadow as a thick and thin line with transparency + ctx.lineWidth = sw; + ctx.strokeStyle = "rgba(0,0,0,0.1)"; + // position shadow at angle from the mid of line + var angle = Math.PI/18; + plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/2), Math.cos(angle) * (lw/2 + sw/2), series.xaxis, series.yaxis); + ctx.lineWidth = sw/2; + plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/4), Math.cos(angle) * (lw/2 + sw/4), series.xaxis, series.yaxis); + } + + ctx.lineWidth = lw; + ctx.strokeStyle = series.color; + var fillStyle = getFillStyle(series.lines, series.color, 0, plotHeight); + if (fillStyle) { + ctx.fillStyle = fillStyle; + plotLineArea(series.datapoints, series.xaxis, series.yaxis); + } + + if (lw > 0) + plotLine(series.datapoints, 0, 0, series.xaxis, series.yaxis); + ctx.restore(); + } + + function drawSeriesPoints(series) { + function plotPoints(datapoints, radius, fillStyle, offset, shadow, axisx, axisy, symbol) { + var points = datapoints.points, ps = datapoints.pointsize; + + for (var i = 0; i < points.length; i += ps) { + var x = points[i], y = points[i + 1]; + if (x == null || x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max) + continue; + + ctx.beginPath(); + x = axisx.p2c(x); + y = axisy.p2c(y) + offset; + if (symbol == "circle") + ctx.arc(x, y, radius, 0, shadow ? Math.PI : Math.PI * 2, false); + else + symbol(ctx, x, y, radius, shadow); + ctx.closePath(); + + if (fillStyle) { + ctx.fillStyle = fillStyle; + ctx.fill(); + } + ctx.stroke(); + } + } + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + + var lw = series.points.lineWidth, + sw = series.shadowSize, + radius = series.points.radius, + symbol = series.points.symbol; + if (lw > 0 && sw > 0) { + // draw shadow in two steps + var w = sw / 2; + ctx.lineWidth = w; + ctx.strokeStyle = "rgba(0,0,0,0.1)"; + plotPoints(series.datapoints, radius, null, w + w/2, true, + series.xaxis, series.yaxis, symbol); + + ctx.strokeStyle = "rgba(0,0,0,0.2)"; + plotPoints(series.datapoints, radius, null, w/2, true, + series.xaxis, series.yaxis, symbol); + } + + ctx.lineWidth = lw; + ctx.strokeStyle = series.color; + plotPoints(series.datapoints, radius, + getFillStyle(series.points, series.color), 0, false, + series.xaxis, series.yaxis, symbol); + ctx.restore(); + } + + function drawBar(x, y, b, barLeft, barRight, offset, fillStyleCallback, axisx, axisy, c, horizontal, lineWidth) { + var left, right, bottom, top, + drawLeft, drawRight, drawTop, drawBottom, + tmp; + + // in horizontal mode, we start the bar from the left + // instead of from the bottom so it appears to be + // horizontal rather than vertical + if (horizontal) { + drawBottom = drawRight = drawTop = true; + drawLeft = false; + left = b; + right = x; + top = y + barLeft; + bottom = y + barRight; + + // account for negative bars + if (right < left) { + tmp = right; + right = left; + left = tmp; + drawLeft = true; + drawRight = false; + } + } + else { + drawLeft = drawRight = drawTop = true; + drawBottom = false; + left = x + barLeft; + right = x + barRight; + bottom = b; + top = y; + + // account for negative bars + if (top < bottom) { + tmp = top; + top = bottom; + bottom = tmp; + drawBottom = true; + drawTop = false; + } + } + + // clip + if (right < axisx.min || left > axisx.max || + top < axisy.min || bottom > axisy.max) + return; + + if (left < axisx.min) { + left = axisx.min; + drawLeft = false; + } + + if (right > axisx.max) { + right = axisx.max; + drawRight = false; + } + + if (bottom < axisy.min) { + bottom = axisy.min; + drawBottom = false; + } + + if (top > axisy.max) { + top = axisy.max; + drawTop = false; + } + + left = axisx.p2c(left); + bottom = axisy.p2c(bottom); + right = axisx.p2c(right); + top = axisy.p2c(top); + + // fill the bar + if (fillStyleCallback) { + c.beginPath(); + c.moveTo(left, bottom); + c.lineTo(left, top); + c.lineTo(right, top); + c.lineTo(right, bottom); + c.fillStyle = fillStyleCallback(bottom, top); + c.fill(); + } + + // draw outline + if (lineWidth > 0 && (drawLeft || drawRight || drawTop || drawBottom)) { + c.beginPath(); + + // FIXME: inline moveTo is buggy with excanvas + c.moveTo(left, bottom + offset); + if (drawLeft) + c.lineTo(left, top + offset); + else + c.moveTo(left, top + offset); + if (drawTop) + c.lineTo(right, top + offset); + else + c.moveTo(right, top + offset); + if (drawRight) + c.lineTo(right, bottom + offset); + else + c.moveTo(right, bottom + offset); + if (drawBottom) + c.lineTo(left, bottom + offset); + else + c.moveTo(left, bottom + offset); + c.stroke(); + } + } + + function drawSeriesBars(series) { + function plotBars(datapoints, barLeft, barRight, offset, fillStyleCallback, axisx, axisy) { + var points = datapoints.points, ps = datapoints.pointsize; + + for (var i = 0; i < points.length; i += ps) { + if (points[i] == null) + continue; + drawBar(points[i], points[i + 1], points[i + 2], barLeft, barRight, offset, fillStyleCallback, axisx, axisy, ctx, series.bars.horizontal, series.bars.lineWidth); + } + } + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + + // FIXME: figure out a way to add shadows (for instance along the right edge) + ctx.lineWidth = series.bars.lineWidth; + ctx.strokeStyle = series.color; + var barLeft = series.bars.align == "left" ? 0 : -series.bars.barWidth/2; + var fillStyleCallback = series.bars.fill ? function (bottom, top) { return getFillStyle(series.bars, series.color, bottom, top); } : null; + plotBars(series.datapoints, barLeft, barLeft + series.bars.barWidth, 0, fillStyleCallback, series.xaxis, series.yaxis); + ctx.restore(); + } + + function getFillStyle(filloptions, seriesColor, bottom, top) { + var fill = filloptions.fill; + if (!fill) + return null; + + if (filloptions.fillColor) + return getColorOrGradient(filloptions.fillColor, bottom, top, seriesColor); + + var c = $.color.parse(seriesColor); + c.a = typeof fill == "number" ? fill : 0.4; + c.normalize(); + return c.toString(); + } + + function insertLegend() { + placeholder.find(".legend").remove(); + + if (!options.legend.show) + return; + + var fragments = [], rowStarted = false, + lf = options.legend.labelFormatter, s, label; + for (var i = 0; i < series.length; ++i) { + s = series[i]; + label = s.label; + if (!label) + continue; + + if (i % options.legend.noColumns == 0) { + if (rowStarted) + fragments.push(''); + fragments.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/app/assets/javascripts/app/lib/flot/jquery.flot.navigate.js b/app/assets/javascripts/app/lib/flot/jquery.flot.navigate.js new file mode 100755 index 000000000..f2b97603c --- /dev/null +++ b/app/assets/javascripts/app/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/app/assets/javascripts/app/lib/flot/jquery.flot.pie.js b/app/assets/javascripts/app/lib/flot/jquery.flot.pie.js new file mode 100755 index 000000000..70941dda2 --- /dev/null +++ b/app/assets/javascripts/app/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+'
'+Math.round(slice.percent)+'%
'; + }, // 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 + } + } + } + }; + + $.plot.plugins.push({ + init: init, + options: options, + name: "pie", + version: "1.0" + }); +})(jQuery); diff --git a/app/assets/javascripts/app/lib/flot/jquery.flot.resize.js b/app/assets/javascripts/app/lib/flot/jquery.flot.resize.js new file mode 100755 index 000000000..69dfb24f3 --- /dev/null +++ b/app/assets/javascripts/app/lib/flot/jquery.flot.resize.js @@ -0,0 +1,60 @@ +/* +Flot plugin for automatically redrawing plots when the placeholder +size changes, e.g. on window resizes. + +It works by listening for changes on the placeholder div (through the +jQuery resize event plugin) - if the size changes, it will redraw the +plot. + +There are no options. If you need to disable the plugin for some +plots, you can just fix the size of their placeholders. +*/ + + +/* Inline dependency: + * jQuery resize event - v1.1 - 3/14/2010 + * http://benalman.com/projects/jquery-resize-plugin/ + * + * Copyright (c) 2010 "Cowboy" Ben Alman + * Dual licensed under the MIT and GPL licenses. + * http://benalman.com/about/license/ + */ +(function($,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/app/assets/javascripts/app/lib/flot/jquery.flot.selection.js b/app/assets/javascripts/app/lib/flot/jquery.flot.selection.js new file mode 100755 index 000000000..7f7b32694 --- /dev/null +++ b/app/assets/javascripts/app/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/app/assets/javascripts/app/lib/flot/jquery.flot.stack.js b/app/assets/javascripts/app/lib/flot/jquery.flot.stack.js new file mode 100755 index 000000000..a31d5dc9b --- /dev/null +++ b/app/assets/javascripts/app/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); + } + + $.plot.plugins.push({ + init: init, + options: options, + name: 'stack', + version: '1.2' + }); +})(jQuery); diff --git a/app/assets/javascripts/app/lib/flot/jquery.flot.symbol.js b/app/assets/javascripts/app/lib/flot/jquery.flot.symbol.js new file mode 100755 index 000000000..a32fe3185 --- /dev/null +++ b/app/assets/javascripts/app/lib/flot/jquery.flot.symbol.js @@ -0,0 +1,70 @@ +/* +Flot plugin that adds some extra symbols for plotting points. + +The symbols are accessed as strings through the standard symbol +choice: + + series: { + points: { + symbol: "square" // or "diamond", "triangle", "cross" + } + } + +*/ + +(function ($) { + 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/app/assets/javascripts/app/lib/flot/jquery.flot.threshold.js b/app/assets/javascripts/app/lib/flot/jquery.flot.threshold.js new file mode 100755 index 000000000..0b2e7ac82 --- /dev/null +++ b/app/assets/javascripts/app/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/app/assets/javascripts/application.js b/app/assets/javascripts/application.js index e33c417dc..390a29582 100644 --- a/app/assets/javascripts/application.js +++ b/app/assets/javascripts/application.js @@ -14,6 +14,9 @@ //= require ./app/lib/spine/ajax.js //= require ./app/lib/spine/route.js +//= require ./app/lib/flot/jquery.flot.js +//= require ./app/lib/flot/jquery.flot.selection.js + //not_used= require_tree ./app/lib/bootstrap //= require ./app/lib/bootstrap/bootstrap-dropdown.js //= require ./app/lib/bootstrap/bootstrap-tooltip.js @@ -22,6 +25,7 @@ //= require ./app/lib/bootstrap/bootstrap-tab.js //= require ./app/lib/bootstrap/bootstrap-transition.js //= require ./app/lib/bootstrap/bootstrap-button.js +//= require ./app/lib/bootstrap/bootstrap-collapse.js //= require_tree ./app/lib/base