| //Flotr 0.2.0-alpha Copyright (c) 2009 Bas Wenneker, <http://solutoire.com>, MIT License. |
| /* $Id: flotr.js 82 2009-01-12 19:19:31Z fabien.menager $ */
|
|
|
| var Flotr = {
|
| version: '0.2.0-alpha',
|
| author: 'Bas Wenneker',
|
| website: 'http://www.solutoire.com',
|
| /**
|
| * An object of the default registered graph types. Use Flotr.register(type, functionName)
|
| * to add your own type.
|
| */
|
| _registeredTypes:{
|
| 'lines': 'drawSeriesLines',
|
| 'points': 'drawSeriesPoints',
|
| 'bars': 'drawSeriesBars',
|
| 'candles': 'drawSeriesCandles',
|
| 'pie': 'drawSeriesPie'
|
| },
|
| /**
|
| * Can be used to register your own chart type. Default types are 'lines', 'points' and 'bars'.
|
| * This is still experimental.
|
| * @todo Test and confirm.
|
| * @param {String} type - type of chart, like 'pies', 'bars' etc.
|
| * @param {String} functionName - Name of the draw function, like 'drawSeriesPies', 'drawSeriesBars' etc.
|
| */
|
| register: function(type, functionName){
|
| Flotr._registeredTypes[type] = functionName+'';
|
| },
|
| /**
|
| * Draws the graph. This function is here for backwards compatibility with Flotr version 0.1.0alpha.
|
| * You could also draw graphs by directly calling Flotr.Graph(element, data, options).
|
| * @param {Element} el - element to insert the graph into
|
| * @param {Object} data - an array or object of dataseries
|
| * @param {Object} options - an object containing options
|
| * @param {Class} _GraphKlass_ - (optional) Class to pass the arguments to, defaults to Flotr.Graph
|
| * @return {Class} returns a new graph object and of course draws the graph.
|
| */
|
| draw: function(el, data, options, _GraphKlass_){
|
| _GraphKlass_ = _GraphKlass_ || Flotr.Graph;
|
| return new _GraphKlass_(el, data, options);
|
| },
|
| /**
|
| * Collects dataseries from input and parses the series into the right format. It returns an Array
|
| * of Objects each having at least the 'data' key set.
|
| * @param {Array/Object} data - Object or array of dataseries
|
| * @return {Array} Array of Objects parsed into the right format ({(...,) data: [[x1,y1], [x2,y2], ...] (, ...)})
|
| */
|
| getSeries: function(data){
|
| return data.collect(function(serie){
|
| var i, serie = (serie.data) ? Object.clone(serie) : {'data': serie};
|
| for (i = serie.data.length-1; i > -1; --i) {
|
| serie.data[i][1] = (serie.data[i][1] === null ? null : parseFloat(serie.data[i][1]));
|
| }
|
| return serie;
|
| });
|
| },
|
| /**
|
| * Recursively merges two objects.
|
| * @param {Object} src - source object (likely the object with the least properties)
|
| * @param {Object} dest - destination object (optional, object with the most properties)
|
| * @return {Object} recursively merged Object
|
| */
|
| merge: function(src, dest){
|
| var result = dest || {};
|
| for(var i in src){
|
| result[i] = (src[i] != null && typeof(src[i]) == 'object' && !(src[i].constructor == Array || src[i].constructor == RegExp) && !Object.isElement(src[i])) ? Flotr.merge(src[i], dest[i]) : result[i] = src[i];
|
| }
|
| return result;
|
| },
|
| /**
|
| * Function calculates the ticksize and returns it.
|
| * @param {Integer} noTicks - number of ticks
|
| * @param {Integer} min - lower bound integer value for the current axis
|
| * @param {Integer} max - upper bound integer value for the current axis
|
| * @param {Integer} decimals - number of decimals for the ticks
|
| * @return {Integer} returns the ticksize in pixels
|
| */
|
| getTickSize: function(noTicks, min, max, decimals){
|
| var delta = (max - min) / noTicks;
|
| var magn = Flotr.getMagnitude(delta);
|
|
|
| // Norm is between 1.0 and 10.0.
|
| var norm = delta / magn;
|
|
|
| var tickSize = 10;
|
| if(norm < 1.5) tickSize = 1;
|
| else if(norm < 2.25) tickSize = 2;
|
| else if(norm < 3) tickSize = ((decimals == 0) ? 2 : 2.5);
|
| else if(norm < 7.5) tickSize = 5;
|
|
|
| return tickSize * magn;
|
| },
|
| /**
|
| * Default tick formatter.
|
| * @param {String/Integer} val - tick value integer
|
| * @return {String} formatted tick string
|
| */
|
| defaultTickFormatter: function(val){
|
| return val+'';
|
| },
|
| /**
|
| * Formats the mouse tracker values.
|
| * @param {Object} obj - Track value Object {x:..,y:..}
|
| * @return {String} Formatted track string
|
| */
|
| defaultTrackFormatter: function(obj){
|
| return '('+obj.x+', '+obj.y+')';
|
| },
|
| defaultPieLabelFormatter: function(slice) {
|
| return (slice.fraction*100).toFixed(2)+'%';
|
| },
|
| /**
|
| * Returns the magnitude of the input value.
|
| * @param {Integer/Float} x - integer or float value
|
| * @return {Integer/Float} returns the magnitude of the input value
|
| */
|
| getMagnitude: function(x){
|
| return Math.pow(10, Math.floor(Math.log(x) / Math.LN10));
|
| },
|
| toPixel: function(val){
|
| return Math.floor(val)+0.5;//((val-Math.round(val) < 0.4) ? (Math.floor(val)-0.5) : val);
|
| },
|
| toRad: function(angle){
|
| return -angle * (Math.PI/180);
|
| },
|
| /**
|
| * Parses a color string and returns a corresponding Color.
|
| * @param {String} str - string thats representing a color
|
| * @return {Color} returns a Color object or false
|
| */
|
| parseColor: function(str){
|
| if (str instanceof Flotr.Color) return str;
|
|
|
| var result, Color = Flotr.Color;
|
|
|
| // rgb(num,num,num)
|
| if((result = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(str)))
|
| return new Color(parseInt(result[1]), parseInt(result[2]), parseInt(result[3]));
|
|
|
| // rgba(num,num,num,num)
|
| if((result = /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 new Color(parseInt(result[1]), parseInt(result[2]), parseInt(result[3]), parseFloat(result[4]));
|
|
|
| // rgb(num%,num%,num%)
|
| if((result = /rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(str)))
|
| return new Color(parseFloat(result[1])*2.55, parseFloat(result[2])*2.55, parseFloat(result[3])*2.55);
|
|
|
| // rgba(num%,num%,num%,num)
|
| if((result = /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 new Color(parseFloat(result[1])*2.55, parseFloat(result[2])*2.55, parseFloat(result[3])*2.55, parseFloat(result[4]));
|
|
|
| // #a0b1c2
|
| if((result = /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(str)))
|
| return new Color(parseInt(result[1],16), parseInt(result[2],16), parseInt(result[3],16));
|
|
|
| // #fff
|
| if((result = /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(str)))
|
| return new Color(parseInt(result[1]+result[1],16), parseInt(result[2]+result[2],16), parseInt(result[3]+result[3],16));
|
|
|
| // Otherwise, we're most likely dealing with a named color.
|
| var name = str.strip().toLowerCase();
|
| if(name == 'transparent'){
|
| return new Color(255, 255, 255, 0);
|
| }
|
| return ((result = Color.lookupColors[name])) ? new Color(result[0], result[1], result[2]) : false;
|
| },
|
| /**
|
| * Extracts the background-color of the passed element.
|
| * @param {Element} element
|
| * @return {String} color string
|
| */
|
| extractColor: function(element){
|
| var color;
|
| // Loop until we find an element with a background color and stop when we hit the body element.
|
| do {
|
| color = element.getStyle('background-color').toLowerCase();
|
| if(!(color == '' || color == 'transparent')) break;
|
| element = element.up(0);
|
| } while(!element.nodeName.match(/^body$/i));
|
|
|
| // Catch Safari's way of signaling transparent.
|
| return (color == 'rgba(0, 0, 0, 0)') ? 'transparent' : color;
|
| }
|
| };
|
| /**
|
| * Flotr Graph class that plots a graph on creation.
|
|
|
| */
|
| Flotr.Graph = Class.create({
|
| /**
|
| * Flotr Graph constructor.
|
| * @param {Element} el - element to insert the graph into
|
| * @param {Object} data - an array or object of dataseries
|
| * @param {Object} options - an object containing options
|
| */
|
| initialize: function(el, data, options){
|
| this.el = $(el);
|
|
|
| if (!this.el) throw 'The target container doesn\'t exist';
|
|
|
| this.data = data;
|
| this.series = Flotr.getSeries(data);
|
| this.setOptions(options);
|
|
|
| // Initialize some variables
|
| this.lastMousePos = { pageX: null, pageY: null };
|
| this.selection = { first: { x: -1, y: -1}, second: { x: -1, y: -1} };
|
| this.prevSelection = null;
|
| this.selectionInterval = null;
|
| this.ignoreClick = false;
|
| this.prevHit = null;
|
|
|
| // Create and prepare canvas.
|
| this.constructCanvas();
|
|
|
| // Add event handlers for mouse tracking, clicking and selection
|
| this.initEvents();
|
|
|
| this.findDataRanges();
|
| this.calculateTicks(this.axes.x);
|
| this.calculateTicks(this.axes.x2);
|
| this.calculateTicks(this.axes.y);
|
| this.calculateTicks(this.axes.y2);
|
|
|
| this.calculateSpacing();
|
| this.draw();
|
| this.insertLegend();
|
|
|
| // Graph and Data tabs
|
| if (this.options.spreadsheet.show)
|
| this.constructTabs();
|
| },
|
| /**
|
| * Sets options and initializes some variables and color specific values, used by the constructor.
|
| * @param {Object} opts - options object
|
| */
|
| setOptions: function(opts){
|
| var options = {
|
| colors: ['#00A8F0', '#C0D800', '#CB4B4B', '#4DA74D', '#9440ED'], //=> The default colorscheme. When there are > 5 series, additional colors are generated.
|
| title: null,
|
| subtitle: null,
|
| legend: {
|
| show: true, // => setting to true will show the legend, hide otherwise
|
| noColumns: 1, // => number of colums in legend table // @todo: doesn't work for HtmlText = false
|
| labelFormatter: Prototype.K, // => fn: string -> string
|
| labelBoxBorderColor: '#CCCCCC', // => border color for the little label boxes
|
| labelBoxWidth: 14,
|
| labelBoxHeight: 10,
|
| labelBoxMargin: 5,
|
| container: null, // => container (as jQuery object) to put legend in, null means default on top of graph
|
| position: 'nw', // => 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, set to 1 for a solid background
|
| },
|
| xaxis: {
|
| ticks: null, // => format: either [1, 3] or [[1, 'a'], 3]
|
| showLabels: true, // => setting to true will show the axis ticks labels, hide otherwise
|
| labelsAngle: 0, // => Labels' angle, in degrees
|
| title: null, // => axis title
|
| titleAngle: 0, // => axis title's angle, in degrees
|
| noTicks: 5, // => number of ticks for automagically generated ticks
|
| tickFormatter: Flotr.defaultTickFormatter, // => fn: number -> string
|
| tickDecimals: null, // => no. of decimals, null means auto
|
| min: null, // => min. value to show, null means set automatically
|
| max: null, // => max. value to show, null means set automatically
|
| autoscaleMargin: 0, // => margin in % to add if auto-setting min/max
|
| color: null
|
| },
|
| x2axis: {},
|
| yaxis: {
|
| ticks: null, // => format: either [1, 3] or [[1, 'a'], 3]
|
| showLabels: true, // => setting to true will show the axis ticks labels, hide otherwise
|
| labelsAngle: 0, // => Labels' angle, in degrees
|
| title: null, // => axis title
|
| titleAngle: 90, // => axis title's angle, in degrees
|
| noTicks: 5, // => number of ticks for automagically generated ticks
|
| tickFormatter: Flotr.defaultTickFormatter, // => fn: number -> string
|
| tickDecimals: null, // => no. of decimals, null means auto
|
| min: null, // => min. value to show, null means set automatically
|
| max: null, // => max. value to show, null means set automatically
|
| autoscaleMargin: 0, // => margin in % to add if auto-setting min/max
|
| color: null
|
| },
|
| y2axis: {
|
| titleAngle: 270
|
| },
|
| points: {
|
| show: false, // => setting to true will show points, false will hide
|
| radius: 3, // => point radius (pixels)
|
| lineWidth: 2, // => line width in pixels
|
| fill: true, // => true to fill the points with a color, false for (transparent) no fill
|
| fillColor: '#FFFFFF', // => fill color
|
| fillOpacity: 0.4
|
| },
|
| lines: {
|
| show: false, // => setting to true will show lines, false will hide
|
| lineWidth: 2, // => line width in pixels
|
| fill: false, // => true to fill the area from the line to the x axis, false for (transparent) no fill
|
| fillColor: null, // => fill color
|
| fillOpacity: 0.4 // => opacity of the fill color, set to 1 for a solid fill, 0 hides the fill
|
| },
|
| bars: {
|
| show: false, // => setting to true will show bars, false will hide
|
| lineWidth: 2, // => in pixels
|
| barWidth: 1, // => in units of the x axis
|
| fill: true, // => true to fill the area from the line to the x axis, false for (transparent) no fill
|
| fillColor: null, // => fill color
|
| fillOpacity: 0.4, // => opacity of the fill color, set to 1 for a solid fill, 0 hides the fill
|
| horizontal: false,
|
| stacked: false
|
| },
|
| candles: {
|
| show: false, // => setting to true will show candle sticks, false will hide
|
| lineWidth: 1, // => in pixels
|
| wickLineWidth: 1, // => in pixels
|
| candleWidth: 0.6, // => in units of the x axis
|
| fill: true, // => true to fill the area from the line to the x axis, false for (transparent) no fill
|
| upFillColor: '#00A8F0',// => up sticks fill color
|
| downFillColor: '#CB4B4B',// => down sticks fill color
|
| fillOpacity: 0.5, // => opacity of the fill color, set to 1 for a solid fill, 0 hides the fill
|
| barcharts: false // => draw as barcharts (not standard bars but financial barcharts)
|
| },
|
| pie: {
|
| show: false, // => setting to true will show bars, false will hide
|
| lineWidth: 1, // => in pixels
|
| fill: true, // => true to fill the area from the line to the x axis, false for (transparent) no fill
|
| fillColor: null, // => fill color
|
| fillOpacity: 0.6, // => opacity of the fill color, set to 1 for a solid fill, 0 hides the fill
|
| explode: 6,
|
| sizeRatio: 0.6,
|
| startAngle: Math.PI/4,
|
| labelFormatter: Flotr.defaultPieLabelFormatter,
|
| pie3D: false,
|
| pie3DviewAngle: (Math.PI/2 * 0.8),
|
| pie3DspliceThickness: 20
|
| },
|
| grid: {
|
| color: '#545454', // => primary color used for outline and labels
|
| backgroundColor: null, // => null for transparent, else color
|
| tickColor: '#DDDDDD', // => color used for the ticks
|
| labelMargin: 3, // => margin in pixels
|
| verticalLines: true, // => whether to show gridlines in vertical direction
|
| horizontalLines: true, // => whether to show gridlines in horizontal direction
|
| outlineWidth: 2 // => width of the grid outline/border in pixels
|
| },
|
| selection: {
|
| mode: null, // => one of null, 'x', 'y' or 'xy'
|
| color: '#B6D9FF', // => selection box color
|
| fps: 20 // => frames-per-second
|
| },
|
| mouse: {
|
| track: false, // => true to track the mouse, no tracking otherwise
|
| position: 'se', // => position of the value box (default south-east)
|
| relative: false, // => next to the mouse cursor
|
| trackFormatter: Flotr.defaultTrackFormatter, // => formats the values in the value box
|
| margin: 5, // => margin in pixels of the valuebox
|
| lineColor: '#FF3F19', // => line color of points that are drawn when mouse comes near a value of a series
|
| trackDecimals: 1, // => decimals for the track values
|
| sensibility: 2, // => the lower this number, the more precise you have to aim to show a value
|
| radius: 3 // => radius of the track point
|
| },
|
| shadowSize: 4, // => size of the 'fake' shadow
|
| defaultType: 'lines', // => default series type
|
| HtmlText: true, // => wether to draw the text using HTML or on the canvas
|
| fontSize: 7.5, // => canvas' text font size
|
| spreadsheet: {
|
| show: false, // => show the data grid using two tabs
|
| tabGraphLabel: 'Graph',
|
| tabDataLabel: 'Data',
|
| toolbarDownload: 'Download CSV', // @todo: add language support
|
| toolbarSelectAll: 'Select all'
|
| }
|
| }
|
|
|
| options.x2axis = Object.extend(Object.clone(options.xaxis), options.x2axis);
|
| options.y2axis = Object.extend(Object.clone(options.yaxis), options.y2axis);
|
| this.options = Flotr.merge((opts || {}), options);
|
|
|
| this.axes = {
|
| x: {options: this.options.xaxis, n: 1},
|
| x2: {options: this.options.x2axis, n: 2},
|
| y: {options: this.options.yaxis, n: 1},
|
| y2: {options: this.options.y2axis, n: 2}
|
| };
|
|
|
| // Initialize some variables used throughout this function.
|
| var assignedColors = [],
|
| colors = [],
|
| ln = this.series.length,
|
| neededColors = this.series.length,
|
| oc = this.options.colors,
|
| usedColors = [],
|
| variation = 0,
|
| c, i, j, s, tooClose;
|
|
|
| // Collect user-defined colors from series.
|
| for(i = neededColors - 1; i > -1; --i){
|
| c = this.series[i].color;
|
| if(c != null){
|
| --neededColors;
|
| if(Object.isNumber(c)) assignedColors.push(c);
|
| else usedColors.push(Flotr.parseColor(c));
|
| }
|
| }
|
|
|
| // Calculate the number of colors that need to be generated.
|
| for(i = assignedColors.length - 1; i > -1; --i)
|
| neededColors = Math.max(neededColors, assignedColors[i] + 1);
|
|
|
| // Generate needed number of colors.
|
| for(i = 0; colors.length < neededColors;){
|
| c = (oc.length == i) ? new Flotr.Color(100, 100, 100) : Flotr.parseColor(oc[i]);
|
|
|
| // Make sure each serie gets a different color.
|
| var sign = variation % 2 == 1 ? -1 : 1;
|
| var factor = 1 + sign * Math.ceil(variation / 2) * 0.2;
|
| c.scale(factor, factor, factor);
|
|
|
| /**
|
| * @todo if we're getting too close to something else, we should probably skip this one
|
| */
|
| colors.push(c);
|
|
|
| if(++i >= oc.length){
|
| i = 0;
|
| ++variation;
|
| }
|
| }
|
|
|
| // Fill the options with the generated colors.
|
| for(i = 0, j = 0; i < ln; ++i){
|
| s = this.series[i];
|
|
|
| // Assign the color.
|
| if(s.color == null){
|
| s.color = colors[j++].toString();
|
| }else if(Object.isNumber(s.color)){
|
| s.color = colors[s.color].toString();
|
| }
|
|
|
| if (!s.xaxis) s.xaxis = this.axes.x;
|
| if (s.xaxis == 1) s.xaxis = this.axes.x;
|
| else if (s.xaxis == 2) s.xaxis = this.axes.x2;
|
|
|
| if (!s.yaxis) s.yaxis = this.axes.y;
|
| if (s.yaxis == 1) s.yaxis = this.axes.y;
|
| else if (s.yaxis == 2) s.yaxis = this.axes.y2;
|
|
|
| // Apply missing options to the series.
|
| s.lines = Object.extend(Object.clone(this.options.lines), s.lines);
|
| s.points = Object.extend(Object.clone(this.options.points), s.points);
|
| s.bars = Object.extend(Object.clone(this.options.bars), s.bars);
|
| s.candles = Object.extend(Object.clone(this.options.candles), s.candles);
|
| s.pie = Object.extend(Object.clone(this.options.pie), s.pie);
|
| s.mouse = Object.extend(Object.clone(this.options.mouse), s.mouse);
|
|
|
| if(s.shadowSize == null) s.shadowSize = this.options.shadowSize;
|
| }
|
| },
|
| /**
|
| * Initializes the canvas and it's overlay canvas element. When the browser is IE, this makes use
|
| * of excanvas. The overlay canvas is inserted for displaying interactions. After the canvas elements
|
| * are created, the elements are inserted into the container element.
|
| */
|
| constructCanvas: function(){
|
| var el = this.el,
|
| size, c, oc;
|
|
|
| this.canvas = el.select('.flotr-canvas')[0];
|
| this.overlay = el.select('.flotr-overlay')[0];
|
|
|
| el.childElements().invoke('remove');
|
|
|
| // For positioning labels and overlay.
|
| el.setStyle({position:'relative', cursor:'default'});
|
|
|
| this.canvasWidth = el.getWidth();
|
| this.canvasHeight = el.getHeight();
|
| size = {'width': this.canvasWidth, 'height': this.canvasHeight};
|
|
|
| if(this.canvasWidth <= 0 || this.canvasHeight <= 0){
|
| throw 'Invalid dimensions for plot, width = ' + this.canvasWidth + ', height = ' + this.canvasHeight;
|
| }
|
|
|
| // Insert main canvas.
|
| if (!this.canvas) {
|
| c = this.canvas = new Element('canvas', size);
|
| c.className = 'flotr-canvas';
|
| c = c.writeAttribute('style', 'position:absolute;left:0px;top:0px;');
|
| } else {
|
| c = this.canvas.writeAttribute(size);
|
| }
|
| el.insert(c);
|
|
|
| if(Prototype.Browser.IE){
|
| c = window.G_vmlCanvasManager.initElement(c);
|
| }
|
| this.ctx = c.getContext('2d');
|
|
|
| // Insert overlay canvas for interactive features.
|
| if (!this.overlay) {
|
| oc = this.overlay = new Element('canvas', size);
|
| oc.className = 'flotr-overlay';
|
| oc = oc.writeAttribute('style', 'position:absolute;left:0px;top:0px;');
|
| } else {
|
| oc = this.overlay.writeAttribute(size);
|
| }
|
| el.insert(oc);
|
|
|
| if(Prototype.Browser.IE){
|
| oc = window.G_vmlCanvasManager.initElement(oc);
|
| }
|
| this.octx = oc.getContext('2d');
|
|
|
| // Enable text functions
|
| if (window.CanvasText) {
|
| CanvasText.enable(this.ctx);
|
| CanvasText.enable(this.octx);
|
| this.textEnabled = true;
|
| }
|
| },
|
| getTextDimensions: function(text, canvasStyle, HtmlStyle, className) {
|
| if (!text) return {width:0, height:0};
|
|
|
| if (!this.options.HtmlText && this.textEnabled) {
|
| var bounds = this.ctx.getTextBounds(text, canvasStyle);
|
| return {
|
| width: bounds.width+2,
|
| height: bounds.height+6
|
| };
|
| }
|
| else {
|
| var dummyDiv = this.el.insert('<div style="position:absolute;top:-10000px;'+HtmlStyle+'" class="'+className+' flotr-dummy-div">' + text + '</div>').select(".flotr-dummy-div")[0];
|
| dim = dummyDiv.getDimensions();
|
| dummyDiv.remove();
|
| return dim;
|
| }
|
| },
|
| loadDataGrid: function(){
|
| if (this.seriesData) return this.seriesData;
|
|
|
| var s = this.series;
|
| var dg = [];
|
|
|
| /* The data grid is a 2 dimensions array. There is a row for each X value.
|
| * Each row contains the x value and the corresponding y value for each serie ('undefined' if there isn't one)
|
| **/
|
| for(i = 0; i < s.length; ++i){
|
| s[i].data.each(function(v) {
|
| var x = v[0],
|
| y = v[1];
|
| if (r = dg.find(function(row) {return row[0] == x})) {
|
| r[i+1] = y;
|
| }
|
| else {
|
| var newRow = [];
|
| newRow[0] = x;
|
| newRow[i+1] = y
|
| dg.push(newRow);
|
| }
|
| });
|
| }
|
|
|
| // The data grid is sorted by x value
|
| dg = dg.sortBy(function(v) {
|
| return v[0];
|
| });
|
| return this.seriesData = dg;
|
| },
|
|
|
| // @todo: make a tab manager (Flotr.Tabs)
|
| showTab: function(tabName, onComplete){
|
| var elementsClassNames = 'canvas, .flotr-labels, .flotr-legend, .flotr-legend-bg, .flotr-title, .flotr-subtitle';
|
| switch(tabName) {
|
| case 'graph':
|
| this.datagrid.up().hide();
|
| this.el.select(elementsClassNames).invoke('show');
|
| this.tabs.data.removeClassName('selected');
|
| this.tabs.graph.addClassName('selected');
|
| break;
|
| case 'data':
|
| this.constructDataGrid();
|
| this.datagrid.up().show();
|
| this.el.select(elementsClassNames).invoke('hide');
|
| this.tabs.data.addClassName('selected');
|
| this.tabs.graph.removeClassName('selected');
|
| break;
|
| }
|
| },
|
| constructTabs: function(){
|
| var tabsContainer = new Element('div', {className:'flotr-tabs-group', style:'position:absolute;left:0px;top:'+this.canvasHeight+'px;width:'+this.canvasWidth+'px;'});
|
| this.el.insert({bottom: tabsContainer});
|
| this.tabs = {
|
| graph: new Element('div', {className:'flotr-tab selected', style:'float:left;'}).update(this.options.spreadsheet.tabGraphLabel),
|
| data: new Element('div', {className:'flotr-tab', style:'float:left;'}).update(this.options.spreadsheet.tabDataLabel)
|
| }
|
|
|
| tabsContainer.insert(this.tabs.graph).insert(this.tabs.data);
|
|
|
| this.el.setStyle({height: this.canvasHeight+this.tabs.data.getHeight()+2+'px'});
|
|
|
| this.tabs.graph.observe('click', (function() {this.showTab('graph')}).bind(this));
|
| this.tabs.data.observe('click', (function() {this.showTab('data')}).bind(this));
|
| },
|
|
|
| // @todo: make a spreadsheet manager (Flotr.Spreadsheet)
|
| constructDataGrid: function(){
|
| // If the data grid has already been built, nothing to do here
|
| if (this.datagrid) return this.datagrid;
|
|
|
| var i, j,
|
| s = this.series,
|
| datagrid = this.loadDataGrid();
|
|
|
| var t = this.datagrid = new Element('table', {className:'flotr-datagrid', style:'height:100px;'});
|
| var colgroup = ['<colgroup><col />'];
|
|
|
| // First row : series' labels
|
| var html = ['<tr class="first-row">'];
|
| html.push('<th> </th>');
|
| for (i = 0; i < s.length; ++i) {
|
| html.push('<th scope="col">'+(s[i].label || String.fromCharCode(65+i))+'</th>');
|
| colgroup.push('<col />');
|
| }
|
| html.push('</tr>');
|
|
|
| // Data rows
|
| for (j = 0; j < datagrid.length; ++j) {
|
| html.push('<tr>');
|
| for (i = 0; i < s.length+1; ++i) {
|
| var tag = 'td';
|
| var content = (datagrid[j][i] != null ? Math.round(datagrid[j][i]*100000)/100000 : '');
|
|
|
| if (i == 0) {
|
| tag = 'th';
|
| var label;
|
| if(this.options.xaxis.ticks) {
|
| var tick = this.options.xaxis.ticks.find(function (x) { return x[0] == datagrid[j][i] });
|
| if (tick) label = tick[1];
|
| }
|
| else {
|
| label = this.options.xaxis.tickFormatter(content);
|
| }
|
|
|
| if (label) content = label;
|
| }
|
|
|
| html.push('<'+tag+(tag=='th'?' scope="row"':'')+'>'+content+'</'+tag+'>');
|
| }
|
| html.push('</tr>');
|
| }
|
| colgroup.push('</colgroup>');
|
| t.update(colgroup.join('')+html.join(''));
|
|
|
| if (!Prototype.Browser.IE) {
|
| t.select('td').each(function(td) {
|
| td.observe('mouseover', function(e){
|
| td = e.element();
|
| var siblings = td.previousSiblings();
|
|
|
| t.select('th[scope=col]')[siblings.length-1].addClassName('hover');
|
| t.select('colgroup col')[siblings.length].addClassName('hover');
|
| });
|
|
|
| td.observe('mouseout', function(){
|
| t.select('colgroup col.hover, th.hover').each(function(e){e.removeClassName('hover')});
|
| });
|
| });
|
| }
|
|
|
| var toolbar = new Element('div', {className: 'flotr-datagrid-toolbar'}).
|
| insert(new Element('button', {type:'button', className:'flotr-datagrid-toolbar-button'}).update(this.options.spreadsheet.toolbarDownload).observe('click', this.downloadCSV.bind(this))).
|
| insert(new Element('button', {type:'button', className:'flotr-datagrid-toolbar-button'}).update(this.options.spreadsheet.toolbarSelectAll).observe('click', this.selectAllData.bind(this)));
|
|
|
| var container = new Element('div', {className:'flotr-datagrid-container', style:'left:0px;top:0px;width:'+this.canvasWidth+'px;height:'+this.canvasHeight+'px;overflow:auto;'});
|
| container.insert(toolbar);
|
| t.wrap(container.hide());
|
|
|
| this.el.insert(container);
|
| return t;
|
| },
|
| selectAllData: function(){
|
| if (this.tabs) {
|
| var selection, range, doc, win, node = this.constructDataGrid();
|
|
|
| this.showTab('data');
|
|
|
| // deferred to be able to select the table
|
| (function () {
|
| if ((doc = node.ownerDocument) && (win = doc.defaultView) &&
|
| win.getSelection && doc.createRange &&
|
| (selection = window.getSelection()) &&
|
| selection.removeAllRanges) {
|
| range = doc.createRange();
|
| range.selectNode(node);
|
| selection.removeAllRanges();
|
| selection.addRange(range);
|
| }
|
| else if (document.body && document.body.createTextRange &&
|
| (range = document.body.createTextRange())) {
|
| range.moveToElementText(node);
|
| range.select();
|
| }
|
| }).defer();
|
| return true;
|
| }
|
| else return false;
|
| },
|
| downloadCSV: function(){
|
| var i, csv = '"x"',
|
| series = this.series,
|
| dg = this.loadDataGrid();
|
|
|
| for (i = 0; i < series.length; ++i) {
|
| csv += '%09"'+(series[i].label || String.fromCharCode(65+i))+'"'; // \t
|
| }
|
| csv += "%0D%0A"; // \r\n
|
|
|
| for (i = 0; i < dg.length; ++i) {
|
| if (this.options.xaxis.ticks) {
|
| var tick = this.options.xaxis.ticks.find(function (x) { return x[0] == dg[i][0] });
|
| if (tick) dg[i][0] = tick[1];
|
| } else {
|
| dg[i][0] = this.options.xaxis.tickFormatter(dg[i][0]);
|
| }
|
| csv += dg[i].join('%09')+"%0D%0A"; // \t and \r\n
|
| }
|
| if (Prototype.Browser.IE) {
|
| csv = csv.gsub('%09', '\t').gsub('%0A', '\n').gsub('%0D', '\r');
|
| window.open().document.write(csv);
|
| }
|
| else {
|
| window.open('data:text/csv,'+csv);
|
| }
|
| },
|
| /**
|
| * Initializes event some handlers.
|
| */
|
| initEvents: function () {
|
| //@todo: maybe stopObserving with only flotr functions
|
| this.overlay.stopObserving();
|
| this.overlay.observe('mousedown', this.mouseDownHandler.bind(this));
|
| this.overlay.observe('mousemove', this.mouseMoveHandler.bind(this));
|
| this.overlay.observe('click', this.clickHandler.bind(this));
|
| },
|
| /**
|
| * Function determines the min and max values for the xaxis and yaxis.
|
| */
|
| findDataRanges: function(){
|
| var s = this.series,
|
| a = this.axes;
|
|
|
| a.x.datamin = 0; a.x.datamax = 0;
|
| a.x2.datamin = 0; a.x2.datamax = 0;
|
| a.y.datamin = 0; a.y.datamax = 0;
|
| a.y2.datamin = 0; a.y2.datamax = 0;
|
|
|
| if(s.length > 0){
|
| var i, j, h, x, y, data, xaxis, yaxis;
|
|
|
| // Get datamin, datamax start values
|
| for(i = 0; i < s.length; ++i) {
|
| data = s[i].data,
|
| xaxis = s[i].xaxis,
|
| yaxis = s[i].yaxis;
|
|
|
| if (data.length > 0 && !s[i].hide) {
|
| if (!xaxis.used) xaxis.datamin = xaxis.datamax = data[0][0];
|
| if (!yaxis.used) yaxis.datamin = yaxis.datamax = data[0][1];
|
| xaxis.used = true;
|
| yaxis.used = true;
|
|
|
| for(h = data.length - 1; h > -1; --h){
|
| x = data[h][0];
|
| if(x < xaxis.datamin) xaxis.datamin = x;
|
| else if(x > xaxis.datamax) xaxis.datamax = x;
|
|
|
| for(j = 1; j < data[h].length; j++){
|
| y = data[h][j];
|
| if(y < yaxis.datamin) yaxis.datamin = y;
|
| else if(y > yaxis.datamax) yaxis.datamax = y;
|
| }
|
| }
|
| }
|
| }
|
| }
|
|
|
| this.findXAxesValues();
|
|
|
| this.calculateRange(a.x);
|
| this.extendXRangeIfNeededByBar(a.x);
|
|
|
| if (a.x2.used) {
|
| this.calculateRange(a.x2);
|
| this.extendXRangeIfNeededByBar(a.x2);
|
| }
|
|
|
| this.calculateRange(a.y);
|
| this.extendYRangeIfNeededByBar(a.y);
|
|
|
| if (a.y2.used) {
|
| this.calculateRange(a.y2);
|
| this.extendYRangeIfNeededByBar(a.y2);
|
| }
|
| },
|
| /**
|
| * Calculates the range of an axis to apply autoscaling.
|
| */
|
| calculateRange: function(axis){
|
| var o = axis.options,
|
| min = o.min != null ? o.min : axis.datamin,
|
| max = o.max != null ? o.max : axis.datamax,
|
| margin;
|
|
|
| if(max - min == 0.0){
|
| var widen = (max == 0.0) ? 1.0 : 0.01;
|
| min -= widen;
|
| max += widen;
|
| }
|
| axis.tickSize = Flotr.getTickSize(o.noTicks, min, max, o.tickDecimals);
|
|
|
| // Autoscaling.
|
| if(o.min == null){
|
| // Add a margin.
|
| margin = o.autoscaleMargin;
|
| if(margin != 0){
|
| min -= axis.tickSize * margin;
|
|
|
| // Make sure we don't go below zero if all values are positive.
|
| if(min < 0 && axis.datamin >= 0) min = 0;
|
| min = axis.tickSize * Math.floor(min / axis.tickSize);
|
| }
|
| }
|
| if(o.max == null){
|
| margin = o.autoscaleMargin;
|
| if(margin != 0){
|
| max += axis.tickSize * margin;
|
| if(max > 0 && axis.datamax <= 0) max = 0;
|
| max = axis.tickSize * Math.ceil(max / axis.tickSize);
|
| }
|
| }
|
| axis.min = min;
|
| axis.max = max;
|
| },
|
| /**
|
| * Bar series autoscaling in x direction.
|
| */
|
| extendXRangeIfNeededByBar: function(axis){
|
| if(axis.options.max == null){
|
| var newmax = axis.max,
|
| i, s, b, c,
|
| stackedSums = [],
|
| lastSerie = null;
|
|
|
| for(i = 0; i < this.series.length; ++i){
|
| s = this.series[i];
|
| b = s.bars;
|
| c = s.candles;
|
| if(s.axis == axis && (b.show || c.show)) {
|
| if (!b.horizontal && (b.barWidth + axis.datamax > newmax) || (c.candleWidth + axis.datamax > newmax)){
|
| newmax = axis.max + s.bars.barWidth;
|
| }
|
| if(b.stacked && b.horizontal){
|
| for (j = 0; j < s.data.length; j++) {
|
| if (s.bars.show && s.bars.stacked) {
|
| var x = s.data[j][0];
|
| stackedSums[x] = (stackedSums[x] || 0) + s.data[j][1];
|
| lastSerie = s;
|
| }
|
| }
|
|
|
| for (j = 0; j < stackedSums.length; j++) {
|
| newmax = Math.max(stackedSums[j], newmax);
|
| }
|
| }
|
| }
|
| }
|
| axis.lastSerie = lastSerie;
|
| axis.max = newmax;
|
| }
|
| },
|
| /**
|
| * Bar series autoscaling in y direction.
|
| */
|
| extendYRangeIfNeededByBar: function(axis){
|
| if(axis.options.max == null){
|
| var newmax = axis.max,
|
| i, s, b, c,
|
| stackedSums = [],
|
| lastSerie = null;
|
|
|
| for(i = 0; i < this.series.length; ++i){
|
| s = this.series[i];
|
| b = s.bars;
|
| c = s.candles;
|
| if (s.yaxis == axis && b.show && !s.hide) {
|
| if (b.horizontal && (b.barWidth + axis.datamax > newmax) || (c.candleWidth + axis.datamax > newmax)){
|
| newmax = axis.max + b.barWidth;
|
| }
|
| if(b.stacked && !b.horizontal){
|
| for (j = 0; j < s.data.length; j++) {
|
| if (s.bars.show && s.bars.stacked) {
|
| var x = s.data[j][0];
|
| stackedSums[x] = (stackedSums[x] || 0) + s.data[j][1];
|
| lastSerie = s;
|
| }
|
| }
|
|
|
| for (j = 0; j < stackedSums.length; j++) {
|
| newmax = Math.max(stackedSums[j], newmax);
|
| }
|
| }
|
| }
|
| }
|
| axis.lastSerie = lastSerie;
|
| axis.max = newmax;
|
| }
|
| },
|
| /**
|
| * Find every values of the x axes
|
| */
|
| findXAxesValues: function(){
|
| for(i = this.series.length-1; i > -1 ; --i){
|
| s = this.series[i];
|
| s.xaxis.values = s.xaxis.values || [];
|
| for (j = s.data.length-1; j > -1 ; --j){
|
| s.xaxis.values[s.data[j][0]] = {};
|
| }
|
| }
|
| },
|
| /**
|
| * Calculate axis ticks.
|
| * @param {Object} axis - axis object
|
| * @param {Object} o - axis options
|
| */
|
| calculateTicks: function(axis){
|
| var o = axis.options, i, v;
|
|
|
| axis.ticks = [];
|
| if(o.ticks){
|
| var ticks = o.ticks, t, label;
|
|
|
| if(Object.isFunction(ticks)){
|
| ticks = ticks({min: axis.min, max: axis.max});
|
| }
|
|
|
| // Clean up the user-supplied ticks, copy them over.
|
| for(i = 0; i < ticks.length; ++i){
|
| t = ticks[i];
|
| if(typeof(t) == 'object'){
|
| v = t[0];
|
| label = (t.length > 1) ? t[1] : o.tickFormatter(v);
|
| }else{
|
| v = t;
|
| label = o.tickFormatter(v);
|
| }
|
| axis.ticks[i] = { v: v, label: label };
|
| }
|
| }
|
| else {
|
| // Round to nearest multiple of tick size.
|
| var start = axis.tickSize * Math.ceil(axis.min / axis.tickSize),
|
| decimals;
|
|
|
| // Then store all possible ticks.
|
| for(i = 0; start + i * axis.tickSize <= axis.max; ++i){
|
| v = start + i * axis.tickSize;
|
|
|
| // Round (this is always needed to fix numerical instability).
|
| decimals = o.tickDecimals;
|
| if(decimals == null) decimals = 1 - Math.floor(Math.log(axis.tickSize) / Math.LN10);
|
| if(decimals < 0) decimals = 0;
|
|
|
| v = v.toFixed(decimals);
|
| axis.ticks.push({ v: v, label: o.tickFormatter(v) });
|
| }
|
| }
|
| },
|
| /**
|
| * Calculates axis label sizes.
|
| */
|
| calculateSpacing: function(){
|
| var a = this.axes,
|
| options = this.options,
|
| series = this.series,
|
| margin = options.grid.labelMargin,
|
| x = a.x,
|
| x2 = a.x2,
|
| y = a.y,
|
| y2 = a.y2,
|
| maxOutset = 2,
|
| i, j, l, dim;
|
|
|
| // Labels width and height
|
| [x, x2, y, y2].each(function(axis) {
|
| var maxLabel = '';
|
|
|
| if (axis.options.showLabels) {
|
| for(i = 0; i < axis.ticks.length; ++i){
|
| l = axis.ticks[i].label.length;
|
| if(l > maxLabel.length){
|
| maxLabel = axis.ticks[i].label;
|
| }
|
| }
|
| }
|
| axis.maxLabel = this.getTextDimensions(maxLabel, {size:options.fontSize, angle: Flotr.toRad(axis.options.labelsAngle)}, 'font-size:smaller;', 'flotr-grid-label');
|
| axis.titleSize = this.getTextDimensions(axis.options.title, {size: options.fontSize*1.2, angle: Flotr.toRad(axis.options.titleAngle)}, 'font-weight:bold;', 'flotr-axis-title');
|
| }, this);
|
|
|
| // Title height
|
| dim = this.getTextDimensions(options.title, {size: options.fontSize*1.5}, 'font-size:1em;font-weight:bold;', 'flotr-title');
|
| this.titleHeight = dim.height;
|
|
|
| // Subtitle height
|
| dim = this.getTextDimensions(options.subtitle, {size: options.fontSize}, 'font-size:smaller;', 'flotr-subtitle');
|
| this.subtitleHeight = dim.height;
|
|
|
| // Grid outline line width.
|
| if(options.show){
|
| maxOutset = Math.max(maxOutset, options.points.radius + options.points.lineWidth/2);
|
| }
|
| for(j = 0; j < options.length; ++j){
|
| if (series[j].points.show){
|
| maxOutset = Math.max(maxOutset, series[j].points.radius + series[j].points.lineWidth/2);
|
| }
|
| }
|
|
|
| var p = this.plotOffset = {left: 0, right: 0, top: 0, bottom: 0};
|
| p.left = p.right = p.top = p.bottom = maxOutset;
|
|
|
| p.bottom += (x.options.showLabels ? (x.maxLabel.height + margin) : 0) +
|
| (x.options.title ? (x.titleSize.height + margin) : 0);
|
|
|
| p.top += (x2.options.showLabels ? (x2.maxLabel.height + margin) : 0) +
|
| (x2.options.title ? (x2.titleSize.height + margin) : 0) + this.subtitleHeight + this.titleHeight;
|
|
|
| p.left += (y.options.showLabels ? (y.maxLabel.width + margin) : 0) +
|
| (y.options.title ? (y.titleSize.width + margin) : 0);
|
|
|
| p.right += (y2.options.showLabels ? (y2.maxLabel.width + margin) : 0) +
|
| (y2.options.title ? (y2.titleSize.width + margin) : 0);
|
|
|
| p.top = Math.floor(p.top); // In order the outline not to be blured
|
|
|
| this.plotWidth = this.canvasWidth - p.left - p.right;
|
| this.plotHeight = this.canvasHeight - p.bottom - p.top;
|
|
|
| x.scale = this.plotWidth / (x.max - x.min);
|
| x2.scale = this.plotWidth / (x2.max - x2.min);
|
| y.scale = this.plotHeight / (y.max - y.min);
|
| y2.scale = this.plotHeight / (y2.max - y2.min);
|
| },
|
| /**
|
| * Draws grid, labels and series.
|
| */
|
| draw: function() {
|
| this.drawGrid();
|
| this.drawLabels();
|
| this.drawTitles();
|
|
|
| if(this.series.length){
|
| this.el.fire('flotr:beforedraw', [this.series, this]);
|
| for(var i = 0; i < this.series.length; i++){
|
| if (!this.series[i].hide)
|
| this.drawSeries(this.series[i]);
|
| }
|
| }
|
| this.el.fire('flotr:afterdraw', [this.series, this]);
|
| },
|
| /**
|
| * Translates absolute horizontal x coordinates to relative coordinates.
|
| * @param {Integer} x - absolute integer x coordinate
|
| * @return {Integer} translated relative x coordinate
|
| */
|
| tHoz: function(x, axis){
|
| axis = axis || this.axes.x;
|
| return (x - axis.min) * axis.scale;
|
| },
|
| /**
|
| * Translates absolute vertical x coordinates to relative coordinates.
|
| * @param {Integer} y - absolute integer y coordinate
|
| * @return {Integer} translated relative y coordinate
|
| */
|
| tVert: function(y, axis){
|
| axis = axis || this.axes.y;
|
| return this.plotHeight - (y - axis.min) * axis.scale;
|
| },
|
| /**
|
| * Draws a grid for the graph.
|
| */
|
| drawGrid: function(){
|
| var v, o = this.options,
|
| ctx = this.ctx;
|
| if(o.grid.verticalLines || o.grid.horizontalLines){
|
| this.el.fire('flotr:beforegrid', [this.axes.x, this.axes.y, o, this]);
|
| }
|
| ctx.save();
|
| ctx.translate(this.plotOffset.left, this.plotOffset.top);
|
|
|
| // Draw grid background, if present in options.
|
| if(o.grid.backgroundColor != null){
|
| ctx.fillStyle = o.grid.backgroundColor;
|
| ctx.fillRect(0, 0, this.plotWidth, this.plotHeight);
|
| }
|
|
|
| // Draw grid lines in vertical direction.
|
| ctx.lineWidth = 1;
|
| ctx.strokeStyle = o.grid.tickColor;
|
| ctx.beginPath();
|
| if(o.grid.verticalLines){
|
| for(var i = 0; i < this.axes.x.ticks.length; ++i){
|
| v = this.axes.x.ticks[i].v;
|
| // Don't show lines on upper and lower bounds.
|
| if ((v == this.axes.x.min || v == this.axes.x.max) && o.grid.outlineWidth != 0)
|
| continue;
|
|
|
| ctx.moveTo(Math.floor(this.tHoz(v)) + ctx.lineWidth/2, 0);
|
| ctx.lineTo(Math.floor(this.tHoz(v)) + ctx.lineWidth/2, this.plotHeight);
|
| }
|
| }
|
|
|
| // Draw grid lines in horizontal direction.
|
| if(o.grid.horizontalLines){
|
| for(var j = 0; j < this.axes.y.ticks.length; ++j){
|
| v = this.axes.y.ticks[j].v;
|
| // Don't show lines on upper and lower bounds.
|
| if ((v == this.axes.y.min || v == this.axes.y.max) && o.grid.outlineWidth != 0)
|
| continue;
|
|
|
| ctx.moveTo(0, Math.floor(this.tVert(v)) + ctx.lineWidth/2);
|
| ctx.lineTo(this.plotWidth, Math.floor(this.tVert(v)) + ctx.lineWidth/2);
|
| }
|
| }
|
| ctx.stroke();
|
|
|
| // Draw axis/grid border.
|
| if(o.grid.outlineWidth != 0) {
|
| ctx.lineWidth = o.grid.outlineWidth;
|
| ctx.strokeStyle = o.grid.color;
|
| ctx.lineJoin = 'round';
|
| ctx.strokeRect(0, 0, this.plotWidth, this.plotHeight);
|
| }
|
| ctx.restore();
|
| if(o.grid.verticalLines || o.grid.horizontalLines){
|
| this.el.fire('flotr:aftergrid', [this.axes.x, this.axes.y, o, this]);
|
| }
|
| },
|
| /**
|
| * Draws labels for x and y axis.
|
| */
|
| drawLabels: function(){
|
| // Construct fixed width label boxes, which can be styled easily.
|
| var noLabels = 0, axis,
|
| xBoxWidth, i, html, tick,
|
| options = this.options,
|
| ctx = this.ctx,
|
| a = this.axes;
|
|
|
| for(i = 0; i < a.x.ticks.length; ++i){
|
| if (a.x.ticks[i].label) {
|
| ++noLabels;
|
| }
|
| }
|
| xBoxWidth = this.plotWidth / noLabels;
|
|
|
| if (!options.HtmlText && this.textEnabled) {
|
| var style = {
|
| size: options.fontSize,
|
| adjustAlign: true
|
| };
|
|
|
| // Add x labels.
|
| axis = a.x;
|
| style.color = axis.options.color || options.grid.color;
|
| for(i = 0; i < axis.ticks.length && axis.options.showLabels && axis.used; ++i){
|
| tick = axis.ticks[i];
|
| if(!tick.label || tick.label.length == 0) continue;
|
|
|
| style.angle = Flotr.toRad(axis.options.labelsAngle);
|
| style.halign = 'c';
|
| style.valign = 't';
|
|
|
| ctx.drawText(
|
| tick.label,
|
| this.plotOffset.left + this.tHoz(tick.v, axis),
|
| this.plotOffset.top + this.plotHeight + options.grid.labelMargin,
|
| style
|
| );
|
| }
|
|
|
| // Add x2 labels.
|
| axis = a.x2;
|
| style.color = axis.options.color || options.grid.color;
|
| for(i = 0; i < axis.ticks.length && axis.options.showLabels && axis.used; ++i){
|
| tick = axis.ticks[i];
|
| if(!tick.label || tick.label.length == 0) continue;
|
|
|
| style.angle = Flotr.toRad(axis.options.labelsAngle);
|
| style.halign = 'c';
|
| style.valign = 'b';
|
|
|
| ctx.drawText(
|
| tick.label,
|
| this.plotOffset.left + this.tHoz(tick.v, axis),
|
| this.plotOffset.top + options.grid.labelMargin,
|
| style
|
| );
|
| }
|
|
|
| // Add y labels.
|
| axis = a.y;
|
| style.color = axis.options.color || options.grid.color;
|
| for(i = 0; i < axis.ticks.length && axis.options.showLabels && axis.used; ++i){
|
| tick = axis.ticks[i];
|
| if (!tick.label || tick.label.length == 0) continue;
|
|
|
| style.angle = Flotr.toRad(axis.options.labelsAngle);
|
| style.halign = 'r';
|
| style.valign = 'm';
|
|
|
| ctx.drawText(
|
| tick.label,
|
| this.plotOffset.left - options.grid.labelMargin,
|
| this.plotOffset.top + this.tVert(tick.v, axis),
|
| style
|
| );
|
| }
|
|
|
| // Add y2 labels.
|
| axis = a.y2;
|
| style.color = axis.options.color || options.grid.color;
|
| for(i = 0; i < axis.ticks.length && axis.options.showLabels && axis.used; ++i){
|
| tick = axis.ticks[i];
|
| if (!tick.label || tick.label.length == 0) continue;
|
|
|
| style.angle = Flotr.toRad(axis.options.labelsAngle);
|
| style.halign = 'l';
|
| style.valign = 'm';
|
|
|
| ctx.drawText(
|
| tick.label,
|
| this.plotOffset.left + this.plotWidth + options.grid.labelMargin,
|
| this.plotOffset.top + this.tVert(tick.v, axis),
|
| style
|
| );
|
|
|
| ctx.save();
|
| ctx.strokeStyle = style.color;
|
| ctx.beginPath();
|
| ctx.moveTo(this.plotOffset.left + this.plotWidth - 8, this.plotOffset.top + this.tVert(tick.v, axis));
|
| ctx.lineTo(this.plotOffset.left + this.plotWidth, this.plotOffset.top + this.tVert(tick.v, axis));
|
| ctx.stroke();
|
| ctx.restore();
|
| }
|
| }
|
| else if (a.x.options.showLabels ||
|
| a.x2.options.showLabels ||
|
| a.y.options.showLabels ||
|
| a.y2.options.showLabels) {
|
| html = ['<div style="font-size:smaller;color:' + options.grid.color + ';" class="flotr-labels">'];
|
|
|
| // Add x labels.
|
| axis = a.x;
|
| if (axis.options.showLabels){
|
| for(i = 0; i < axis.ticks.length; ++i){
|
| tick = axis.ticks[i];
|
| if(!tick.label || tick.label.length == 0) continue;
|
| html.push('<div style="position:absolute;top:' + (this.plotOffset.top + this.plotHeight + options.grid.labelMargin) + 'px;left:' + (this.plotOffset.left + this.tHoz(tick.v, axis) - xBoxWidth/2) + 'px;width:' + xBoxWidth + 'px;text-align:center;'+(axis.options.color?('color:'+axis.options.color+';'):'')+'" class="flotr-grid-label">' + tick.label + '</div>');
|
| }
|
| }
|
|
|
| // Add x2 labels.
|
| axis = a.x2;
|
| if (axis.options.showLabels && axis.used){
|
| for(i = 0; i < axis.ticks.length; ++i){
|
| tick = axis.ticks[i];
|
| if(!tick.label || tick.label.length == 0) continue;
|
| html.push('<div style="position:absolute;top:' + (this.plotOffset.top - options.grid.labelMargin - axis.maxLabel.height) + 'px;left:' + (this.plotOffset.left + this.tHoz(tick.v, axis) - xBoxWidth/2) + 'px;width:' + xBoxWidth + 'px;text-align:center;'+(axis.options.color?('color:'+axis.options.color+';'):'')+'" class="flotr-grid-label">' + tick.label + '</div>');
|
| }
|
| }
|
|
|
| // Add y labels.
|
| axis = a.y;
|
| if (axis.options.showLabels){
|
| for(i = 0; i < axis.ticks.length; ++i){
|
| tick = axis.ticks[i];
|
| if (!tick.label || tick.label.length == 0) continue;
|
| html.push('<div style="position:absolute;top:' + (this.plotOffset.top + this.tVert(tick.v, axis) - axis.maxLabel.height/2) + 'px;left:0;width:' + (this.plotOffset.left - options.grid.labelMargin) + 'px;text-align:right;'+(axis.options.color?('color:'+axis.options.color+';'):'')+'" class="flotr-grid-label">' + tick.label + '</div>');
|
| }
|
| }
|
|
|
| // Add y2 labels.
|
| axis = a.y2;
|
| if (axis.options.showLabels && axis.used){
|
| ctx.save();
|
| ctx.strokeStyle = axis.options.color || options.grid.color;
|
| ctx.beginPath();
|
|
|
| for(i = 0; i < axis.ticks.length; ++i){
|
| tick = axis.ticks[i];
|
| if (!tick.label || tick.label.length == 0) continue;
|
| html.push('<div style="position:absolute;top:' + (this.plotOffset.top + this.tVert(tick.v, axis) - axis.maxLabel.height/2) + 'px;right:0;width:' + (this.plotOffset.right - options.grid.labelMargin) + 'px;text-align:left;'+(axis.options.color?('color:'+axis.options.color+';'):'')+'" class="flotr-grid-label">' + tick.label + '</div>');
|
|
|
| ctx.moveTo(this.plotOffset.left + this.plotWidth - 8, this.plotOffset.top + this.tVert(tick.v, axis));
|
| ctx.lineTo(this.plotOffset.left + this.plotWidth, this.plotOffset.top + this.tVert(tick.v, axis));
|
| }
|
| ctx.stroke();
|
| ctx.restore();
|
| }
|
|
|
| html.push('</div>');
|
| this.el.insert(html.join(''));
|
| }
|
| },
|
| /**
|
| * Draws the title and the subtitle
|
| */
|
| drawTitles: function(){
|
| var html,
|
| options = this.options,
|
| margin = options.grid.labelMargin,
|
| ctx = this.ctx,
|
| a = this.axes;
|
|
|
| if (!options.HtmlText && this.textEnabled) {
|
| var style = {
|
| size: options.fontSize,
|
| color: options.grid.color,
|
| halign: 'c'
|
| };
|
|
|
| // Add subtitle
|
| if (options.subtitle){
|
| ctx.drawText(
|
| options.subtitle,
|
| this.plotOffset.left + this.plotWidth/2,
|
| this.titleHeight + this.subtitleHeight - 2,
|
| style
|
| );
|
| }
|
|
|
| style.weight = 1.5;
|
| style.size *= 1.5;
|
|
|
| // Add title
|
| if (options.title){
|
| ctx.drawText(
|
| options.title,
|
| this.plotOffset.left + this.plotWidth/2,
|
| this.titleHeight - 2,
|
| style
|
| );
|
| }
|
|
|
| style.weight = 1.8;
|
| style.size *= 0.8;
|
| style.adjustAlign = true;
|
|
|
| // Add x axis title
|
| if (a.x.options.title && a.x.used){
|
| style.halign = 'c';
|
| style.valign = 't';
|
| style.angle = Flotr.toRad(a.x.options.titleAngle);
|
| ctx.drawText(
|
| a.x.options.title,
|
| this.plotOffset.left + this.plotWidth/2,
|
| this.plotOffset.top + a.x.maxLabel.height + this.plotHeight + 2 * margin,
|
| style
|
| );
|
| }
|
|
|
| // Add x2 axis title
|
| if (a.x2.options.title && a.x2.used){
|
| style.halign = 'c';
|
| style.valign = 'b';
|
| style.angle = Flotr.toRad(a.x2.options.titleAngle);
|
| ctx.drawText(
|
| a.x2.options.title,
|
| this.plotOffset.left + this.plotWidth/2,
|
| this.plotOffset.top - a.x2.maxLabel.height - 2 * margin,
|
| style
|
| );
|
| }
|
|
|
| // Add y axis title
|
| if (a.y.options.title && a.y.used){
|
| style.halign = 'r';
|
| style.valign = 'm';
|
| style.angle = Flotr.toRad(a.y.options.titleAngle);
|
| ctx.drawText(
|
| a.y.options.title,
|
| this.plotOffset.left - a.y.maxLabel.width - 2 * margin,
|
| this.plotOffset.top + this.plotHeight / 2,
|
| style
|
| );
|
| }
|
|
|
| // Add y2 axis title
|
| if (a.y2.options.title && a.y2.used){
|
| style.halign = 'l';
|
| style.valign = 'm';
|
| style.angle = Flotr.toRad(a.y2.options.titleAngle);
|
| ctx.drawText(
|
| a.y2.options.title,
|
| this.plotOffset.left + this.plotWidth + a.y2.maxLabel.width + 2 * margin,
|
| this.plotOffset.top + this.plotHeight / 2,
|
| style
|
| );
|
| }
|
| }
|
| else {
|
| html = ['<div style="color:'+options.grid.color+';" class="flotr-titles">'];
|
|
|
| // Add title
|
| if (options.title){
|
| html.push('<div style="position:absolute;top:0;left:'+this.plotOffset.left+'px;font-size:1em;font-weight:bold;text-align:center;width:'+this.plotWidth+'px;" class="flotr-title">'+options.title+'</div>');
|
| }
|
|
|
| // Add subtitle
|
| if (options.subtitle){
|
| html.push('<div style="position:absolute;top:'+this.titleHeight+'px;left:'+this.plotOffset.left+'px;font-size:smaller;text-align:center;width:'+this.plotWidth+'px;" class="flotr-subtitle">'+options.subtitle+'</div>');
|
| }
|
| html.push('</div>');
|
|
|
|
|
| html.push('<div class="flotr-axis-title" style="font-weight:bold;">');
|
| // Add x axis title
|
| if (a.x.options.title && a.x.used){
|
| html.push('<div style="position:absolute;top:' + (this.plotOffset.top + this.plotHeight + options.grid.labelMargin + a.x.titleSize.height) + 'px;left:' + this.plotOffset.left + 'px;width:' + this.plotWidth + 'px;text-align:center;" class="flotr-axis-title">' + a.x.options.title + '</div>');
|
| }
|
|
|
| // Add x2 axis title
|
| if (a.x2.options.title && a.x2.used){
|
| html.push('<div style="position:absolute;top:0;left:' + this.plotOffset.left + 'px;width:' + this.plotWidth + 'px;text-align:center;" class="flotr-axis-title">' + a.x2.options.title + '</div>');
|
| }
|
|
|
| // Add y axis title
|
| if (a.y.options.title && a.y.used){
|
| html.push('<div style="position:absolute;top:' + (this.plotOffset.top + this.plotHeight/2 - a.y.titleSize.height/2) + 'px;left:0;text-align:right;" class="flotr-axis-title">' + a.y.options.title + '</div>');
|
| }
|
|
|
| // Add y2 axis title
|
| if (a.y2.options.title && a.y2.used){
|
| html.push('<div style="position:absolute;top:' + (this.plotOffset.top + this.plotHeight/2 - a.y.titleSize.height/2) + 'px;right:0;text-align:right;" class="flotr-axis-title">' + a.y2.options.title + '</div>');
|
| }
|
| html.push('</div>');
|
|
|
| this.el.insert(html.join(''));
|
| }
|
| },
|
| /**
|
| * Actually draws the graph.
|
| * @param {Object} series - series to draw
|
| */
|
| drawSeries: function(series){
|
| series = series || this.series;
|
|
|
| var drawn = false;
|
| for(var type in Flotr._registeredTypes){
|
| if(series[type] && series[type].show){
|
| this[Flotr._registeredTypes[type]](series);
|
| drawn = true;
|
| }
|
| }
|
|
|
| if(!drawn){
|
| this[Flotr._registeredTypes[this.options.defaultType]](series);
|
| }
|
| },
|
|
|
| plotLine: function(series, offset){
|
| var ctx = this.ctx,
|
| xa = series.xaxis,
|
| ya = series.yaxis,
|
| tHoz = this.tHoz.bind(this),
|
| tVert = this.tVert.bind(this),
|
| data = series.data;
|
|
|
| if(data.length < 2) return;
|
|
|
| var prevx = tHoz(data[0][0], xa),
|
| prevy = tVert(data[0][1], ya) + offset;
|
|
|
| ctx.beginPath();
|
| ctx.moveTo(prevx, prevy);
|
| for(var i = 0; i < data.length - 1; ++i){
|
| var x1 = data[i][0], y1 = data[i][1],
|
| x2 = data[i+1][0], y2 = data[i+1][1];
|
|
|
| // To allow empty values
|
| if (y1 === null || y2 === null) continue;
|
|
|
| /**
|
| * Clip with ymin.
|
| */
|
| if(y1 <= y2 && y1 < ya.min){
|
| /**
|
| * Line segment is outside the drawing area.
|
| */
|
| if(y2 < ya.min) continue;
|
|
|
| /**
|
| * Compute new intersection point.
|
| */
|
| x1 = (ya.min - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| y1 = ya.min;
|
| }else if(y2 <= y1 && y2 < ya.min){
|
| if(y1 < ya.min) continue;
|
| x2 = (ya.min - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| y2 = ya.min;
|
| }
|
|
|
| /**
|
| * Clip with ymax.
|
| */
|
| if(y1 >= y2 && y1 > ya.max) {
|
| if(y2 > ya.max) continue;
|
| x1 = (ya.max - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| y1 = ya.max;
|
| }
|
| else if(y2 >= y1 && y2 > ya.max){
|
| if(y1 > ya.max) continue;
|
| x2 = (ya.max - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| y2 = ya.max;
|
| }
|
|
|
| /**
|
| * Clip with xmin.
|
| */
|
| if(x1 <= x2 && x1 < xa.min){
|
| if(x2 < xa.min) continue;
|
| y1 = (xa.min - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| x1 = xa.min;
|
| }else if(x2 <= x1 && x2 < xa.min){
|
| if(x1 < xa.min) continue;
|
| y2 = (xa.min - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| x2 = xa.min;
|
| }
|
|
|
| /**
|
| * Clip with xmax.
|
| */
|
| if(x1 >= x2 && x1 > xa.max){
|
| if (x2 > xa.max) continue;
|
| y1 = (xa.max - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| x1 = xa.max;
|
| }else if(x2 >= x1 && x2 > xa.max){
|
| if(x1 > xa.max) continue;
|
| y2 = (xa.max - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| x2 = xa.max;
|
| }
|
|
|
| if(prevx != tHoz(x1, xa) || prevy != tVert(y1, ya) + offset)
|
| ctx.moveTo(tHoz(x1, xa), tVert(y1, ya) + offset);
|
|
|
| prevx = tHoz(x2, xa);
|
| prevy = tVert(y2, ya) + offset;
|
| ctx.lineTo(prevx, prevy);
|
| }
|
| ctx.stroke();
|
| },
|
| /**
|
| * Function used to fill
|
| * @param {Object} data
|
| */
|
| plotLineArea: function(series, offset){
|
| var data = series.data;
|
| if(data.length < 2) return;
|
|
|
| var top, lastX = 0,
|
| ctx = this.ctx,
|
| xa = series.xaxis,
|
| ya = series.yaxis,
|
| tHoz = this.tHoz.bind(this),
|
| tVert = this.tVert.bind(this),
|
| bottom = Math.min(Math.max(0, ya.min), ya.max),
|
| first = true;
|
|
|
| ctx.beginPath();
|
| for(var i = 0; i < data.length - 1; ++i){
|
|
|
| var x1 = data[i][0], y1 = data[i][1],
|
| x2 = data[i+1][0], y2 = data[i+1][1];
|
|
|
| if(x1 <= x2 && x1 < xa.min){
|
| if(x2 < xa.min) continue;
|
| y1 = (xa.min - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| x1 = xa.min;
|
| }else if(x2 <= x1 && x2 < xa.min){
|
| if(x1 < xa.min) continue;
|
| y2 = (xa.min - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| x2 = xa.min;
|
| }
|
|
|
| if(x1 >= x2 && x1 > xa.max){
|
| if(x2 > xa.max) continue;
|
| y1 = (xa.max - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| x1 = xa.max;
|
| }else if(x2 >= x1 && x2 > xa.max){
|
| if (x1 > xa.max) continue;
|
| y2 = (xa.max - x1) / (x2 - x1) * (y2 - y1) + y1;
|
| x2 = xa.max;
|
| }
|
|
|
| if(first){
|
| ctx.moveTo(tHoz(x1, xa), tVert(bottom, ya) + offset);
|
| first = false;
|
| }
|
|
|
| /**
|
| * Now check the case where both is outside.
|
| */
|
| if(y1 >= ya.max && y2 >= ya.max){
|
| ctx.lineTo(tHoz(x1, xa), tVert(ya.max, ya) + offset);
|
| ctx.lineTo(tHoz(x2, xa), tVert(ya.max, ya) + offset);
|
| continue;
|
| }else if(y1 <= ya.min && y2 <= ya.min){
|
| ctx.lineTo(tHoz(x1, xa), tVert(ya.min, ya) + offset);
|
| ctx.lineTo(tHoz(x2, xa), tVert(ya.min, ya) + offset);
|
| continue;
|
| }
|
|
|
| /**
|
| * Else it's a bit more complicated, there might
|
| * be two rectangles and two triangles we need to fill
|
| * in; to find these keep track of the current x values.
|
| */
|
| var x1old = x1, x2old = x2;
|
|
|
| /**
|
| * And clip the y values, without shortcutting.
|
| * Clip with ymin.
|
| */
|
| if(y1 <= y2 && y1 < ya.min && y2 >= ya.min){
|
| x1 = (ya.min - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| y1 = ya.min;
|
| }else if(y2 <= y1 && y2 < ya.min && y1 >= ya.min){
|
| x2 = (ya.min - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| y2 = ya.min;
|
| }
|
|
|
| /**
|
| * Clip with ymax.
|
| */
|
| if(y1 >= y2 && y1 > ya.max && y2 <= ya.max){
|
| x1 = (ya.max - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| y1 = ya.max;
|
| }else if(y2 >= y1 && y2 > ya.max && y1 <= ya.max){
|
| x2 = (ya.max - y1) / (y2 - y1) * (x2 - x1) + x1;
|
| y2 = ya.max;
|
| }
|
|
|
| /**
|
| * If the x value was changed we got a rectangle to fill.
|
| */
|
| if(x1 != x1old){
|
| top = (y1 <= ya.min) ? top = ya.min : ya.max;
|
| ctx.lineTo(tHoz(x1old, xa), tVert(top, ya) + offset);
|
| ctx.lineTo(tHoz(x1, xa), tVert(top, ya) + offset);
|
| }
|
|
|
| /**
|
| * Fill the triangles.
|
| */
|
| ctx.lineTo(tHoz(x1, xa), tVert(y1, ya) + offset);
|
| ctx.lineTo(tHoz(x2, xa), tVert(y2, ya) + offset);
|
|
|
| /**
|
| * Fill the other rectangle if it's there.
|
| */
|
| if(x2 != x2old){
|
| top = (y2 <= ya.min) ? ya.min : ya.max;
|
| ctx.lineTo(tHoz(x2old, xa), tVert(top, ya) + offset);
|
| ctx.lineTo(tHoz(x2, xa), tVert(top, ya) + offset);
|
| }
|
|
|
| lastX = Math.max(x2, x2old);
|
| }
|
|
|
| ctx.lineTo(tHoz(lastX, xa), tVert(bottom, ya) + offset);
|
| ctx.closePath();
|
| ctx.fill();
|
| },
|
| /**
|
| * Function: (private) drawSeriesLines
|
| *
|
| * Function draws lines series in the canvas element.
|
| *
|
| * Parameters:
|
| * series - Series with options.lines.show = true.
|
| *
|
| * Returns:
|
| * void
|
| */
|
| drawSeriesLines: function(series){
|
| series = series || this.series;
|
| var ctx = this.ctx;
|
| ctx.save();
|
| ctx.translate(this.plotOffset.left, this.plotOffset.top);
|
| ctx.lineJoin = 'round';
|
|
|
| var lw = series.lines.lineWidth;
|
| var sw = series.shadowSize;
|
|
|
| if(sw > 0){
|
| ctx.lineWidth = sw / 2;
|
|
|
| var offset = lw/2 + ctx.lineWidth/2;
|
|
|
| ctx.strokeStyle = "rgba(0,0,0,0.1)";
|
| this.plotLine(series, offset + sw/2);
|
|
|
| ctx.strokeStyle = "rgba(0,0,0,0.2)";
|
| this.plotLine(series, offset);
|
|
|
| if(series.lines.fill) {
|
| ctx.fillStyle = "rgba(0,0,0,0.05)";
|
| this.plotLineArea(series, offset + sw/2);
|
| }
|
| }
|
|
|
| ctx.lineWidth = lw;
|
| ctx.strokeStyle = series.color;
|
| if(series.lines.fill){
|
| ctx.fillStyle = series.lines.fillColor != null ? series.lines.fillColor : Flotr.parseColor(series.color).scale(null, null, null, series.lines.fillOpacity).toString();
|
| this.plotLineArea(series, 0);
|
| }
|
|
|
| this.plotLine(series, 0);
|
| ctx.restore();
|
| },
|
| /**
|
| * Function: drawSeriesPoints
|
| *
|
| * Function draws point series in the canvas element.
|
| *
|
| * Parameters:
|
| * series - Series with options.points.show = true.
|
| *
|
| * Returns:
|
| * void
|
| */
|
| drawSeriesPoints: function(series) {
|
| var ctx = this.ctx;
|
|
|
| ctx.save();
|
| ctx.translate(this.plotOffset.left, this.plotOffset.top);
|
|
|
| var lw = series.lines.lineWidth;
|
| var sw = series.shadowSize;
|
|
|
| if(sw > 0){
|
| ctx.lineWidth = sw / 2;
|
|
|
| ctx.strokeStyle = 'rgba(0,0,0,0.1)';
|
| this.plotPointShadows(series, sw/2 + ctx.lineWidth/2, series.points.radius);
|
|
|
| ctx.strokeStyle = 'rgba(0,0,0,0.2)';
|
| this.plotPointShadows(series, ctx.lineWidth/2, series.points.radius);
|
| }
|
|
|
| ctx.lineWidth = series.points.lineWidth;
|
| ctx.strokeStyle = series.color;
|
| ctx.fillStyle = series.points.fillColor != null ? series.points.fillColor : series.color;
|
| this.plotPoints(series, series.points.radius, series.points.fill);
|
| ctx.restore();
|
| },
|
| plotPoints: function (series, radius, fill) {
|
| var xa = series.xaxis,
|
| ya = series.yaxis,
|
| ctx = this.ctx, i,
|
| data = series.data;
|
|
|
| for(i = data.length - 1; i > -1; --i){
|
| var x = data[i][0], y = data[i][1];
|
| if(x < xa.min || x > xa.max || y < ya.min || y > ya.max)
|
| continue;
|
|
|
| ctx.beginPath();
|
| ctx.arc(this.tHoz(x, xa), this.tVert(y, ya), radius, 0, 2 * Math.PI, true);
|
| if(fill) ctx.fill();
|
| ctx.stroke();
|
| }
|
| },
|
| plotPointShadows: function(series, offset, radius){
|
| var xa = series.xaxis,
|
| ya = series.yaxis,
|
| ctx = this.ctx, i,
|
| data = series.data;
|
|
|
| for(i = data.length - 1; i > -1; --i){
|
| var x = data[i][0], y = data[i][1];
|
| if (x < xa.min || x > xa.max || y < ya.min || y > ya.max)
|
| continue;
|
| ctx.beginPath();
|
| ctx.arc(this.tHoz(x, xa), this.tVert(y, ya) + offset, radius, 0, Math.PI, false);
|
| ctx.stroke();
|
| }
|
| },
|
| /**
|
| * Function: drawSeriesBars
|
| *
|
| * Function draws bar series in the canvas element.
|
| *
|
| * Parameters:
|
| * series - Series with options.bars.show = true.
|
| *
|
| * Returns:
|
| * void
|
| */
|
| drawSeriesBars: function(series) {
|
| var ctx = this.ctx,
|
| bw = series.bars.barWidth,
|
| lw = Math.min(series.bars.lineWidth, bw);
|
|
|
| ctx.save();
|
| ctx.translate(this.plotOffset.left, this.plotOffset.top);
|
| ctx.lineJoin = 'miter';
|
|
|
| /**
|
| * @todo linewidth not interpreted the right way.
|
| */
|
| ctx.lineWidth = lw;
|
| ctx.strokeStyle = series.color;
|
|
|
| this.plotBarsShadows(series, bw, 0, series.bars.fill);
|
|
|
| if(series.bars.fill){
|
| ctx.fillStyle = series.bars.fillColor != null ? series.bars.fillColor : Flotr.parseColor(series.color).scale(null, null, null, series.bars.fillOpacity).toString();
|
| }
|
|
|
| this.plotBars(series, bw, 0, series.bars.fill);
|
| ctx.restore();
|
| },
|
| plotBars: function(series, barWidth, offset, fill){
|
| var data = series.data;
|
| if(data.length < 1) return;
|
|
|
| var xa = series.xaxis,
|
| ya = series.yaxis,
|
| ctx = this.ctx,
|
| tHoz = this.tHoz.bind(this),
|
| tVert = this.tVert.bind(this);
|
|
|
| for(var i = 0; i < data.length; i++){
|
| var x = data[i][0],
|
| y = data[i][1];
|
| var drawLeft = true, drawTop = true, drawRight = true;
|
|
|
| // Stacked bars
|
| var stackOffset = 0;
|
| if(series.bars.stacked) {
|
| xa.values.each(function(o, v) {
|
| if (v == x) {
|
| stackOffset = o.stack || 0;
|
| o.stack = stackOffset + y;
|
| }
|
| });
|
| }
|
|
|
| // @todo: fix horizontal bars support
|
| // Horizontal bars
|
| if(series.bars.horizontal)
|
| var left = stackOffset, right = x + stackOffset, bottom = y, top = y + barWidth;
|
| else
|
| var left = x, right = x + barWidth, bottom = stackOffset, top = y + stackOffset;
|
|
|
| if(right < xa.min || left > xa.max || top < ya.min || bottom > ya.max)
|
| continue;
|
|
|
| if(left < xa.min){
|
| left = xa.min;
|
| drawLeft = false;
|
| }
|
|
|
| if(right > xa.max){
|
| right = xa.max;
|
| if (xa.lastSerie != series && series.bars.horizontal)
|
| drawTop = false;
|
| }
|
|
|
| if(bottom < ya.min)
|
| bottom = ya.min;
|
|
|
| if(top > ya.max){
|
| top = ya.max;
|
| if (ya.lastSerie != series && !series.bars.horizontal)
|
| drawTop = false;
|
| }
|
|
|
| /**
|
| * Fill the bar.
|
| */
|
| if(fill){
|
| ctx.beginPath();
|
| ctx.moveTo(tHoz(left, xa), tVert(bottom, ya) + offset);
|
| ctx.lineTo(tHoz(left, xa), tVert(top, ya) + offset);
|
| ctx.lineTo(tHoz(right, xa), tVert(top, ya) + offset);
|
| ctx.lineTo(tHoz(right, xa), tVert(bottom, ya) + offset);
|
| ctx.fill();
|
| }
|
|
|
| /**
|
| * Draw bar outline/border.
|
| */
|
| if(series.bars.lineWidth != 0 && (drawLeft || drawRight || drawTop)){
|
| ctx.beginPath();
|
| ctx.moveTo(tHoz(left, xa), tVert(bottom, ya) + offset);
|
|
|
| ctx[drawLeft ?'lineTo':'moveTo'](tHoz(left, xa), tVert(top, ya) + offset);
|
| ctx[drawTop ?'lineTo':'moveTo'](tHoz(right, xa), tVert(top, ya) + offset);
|
| ctx[drawRight?'lineTo':'moveTo'](tHoz(right, xa), tVert(bottom, ya) + offset);
|
|
|
| ctx.stroke();
|
| }
|
| }
|
| },
|
| plotBarsShadows: function(series, barWidth, offset){
|
| var data = series.data;
|
| if(data.length < 1) return;
|
|
|
| var xa = series.xaxis,
|
| ya = series.yaxis,
|
| ctx = this.ctx,
|
| tHoz = this.tHoz.bind(this),
|
| tVert = this.tVert.bind(this),
|
| sw = this.options.shadowSize;
|
|
|
| for(var i = 0; i < data.length; i++){
|
| var x = data[i][0],
|
| y = data[i][1];
|
|
|
| // Stacked bars
|
| var stackOffset = 0;
|
| if(series.bars.stacked) {
|
| xa.values.each(function(o, v) {
|
| if (v == x) {
|
| stackOffset = o.stackShadow || 0;
|
| o.stackShadow = stackOffset + y;
|
| }
|
| });
|
| }
|
|
|
| // Horizontal bars
|
| if(series.bars.horizontal)
|
| var left = stackOffset, right = x + stackOffset, bottom = y, top = y + barWidth;
|
| else
|
| var left = x, right = x + barWidth, bottom = stackOffset, top = y + stackOffset;
|
|
|
| if(right < xa.min || left > xa.max || top < ya.min || bottom > ya.max)
|
| continue;
|
|
|
| if(left < xa.min) left = xa.min;
|
| if(right > xa.max) right = xa.max;
|
| if(bottom < ya.min) bottom = ya.min;
|
| if(top > ya.max) top = ya.max;
|
|
|
| var width = tHoz(right, xa)-tHoz(left, xa)-((tHoz(right, xa)+sw <= this.plotWidth) ? 0 : sw);
|
| var height = Math.max(0, tVert(bottom, ya)-tVert(top, ya)-((tVert(bottom, ya)+sw <= this.plotHeight) ? 0 : sw));
|
|
|
| ctx.fillStyle = 'rgba(0,0,0,0.05)';
|
| ctx.fillRect(Math.min(tHoz(left, xa)+sw, this.plotWidth), Math.min(tVert(top, ya)+sw, this.plotWidth), width, height);
|
| }
|
| },
|
| /**
|
| * Function: drawSeriesCandles
|
| *
|
| * Function draws candles series in the canvas element.
|
| *
|
| * Parameters:
|
| * series - Series with options.candles.show = true.
|
| *
|
| * Returns:
|
| * void
|
| */
|
| drawSeriesCandles: function(series) {
|
| var ctx = this.ctx,
|
| bw = series.candles.candleWidth;
|
|
|
| ctx.save();
|
| ctx.translate(this.plotOffset.left, this.plotOffset.top);
|
| ctx.lineJoin = 'miter';
|
|
|
| /**
|
| * @todo linewidth not interpreted the right way.
|
| */
|
| ctx.lineWidth = series.candles.lineWidth;
|
| this.plotCandlesShadows(series, bw/2);
|
| this.plotCandles(series, bw/2);
|
|
|
| ctx.restore();
|
| },
|
| plotCandles: function(series, offset){
|
| var data = series.data;
|
| if(data.length < 1) return;
|
|
|
| var xa = series.xaxis,
|
| ya = series.yaxis,
|
| ctx = this.ctx,
|
| tHoz = this.tHoz.bind(this),
|
| tVert = this.tVert.bind(this);
|
|
|
| for(var i = 0; i < data.length; i++){
|
| var d = data[i],
|
| x = d[0],
|
| open = d[1],
|
| high = d[2],
|
| low = d[3],
|
| close = d[4];
|
|
|
| var left = x,
|
| right = x + series.candles.candleWidth,
|
| bottom = Math.max(ya.min, low),
|
| top = Math.min(ya.max, high),
|
| bottom2 = Math.max(ya.min, Math.min(open, close)),
|
| top2 = Math.min(ya.max, Math.max(open, close));
|
|
|
| if(right < xa.min || left > xa.max || top < ya.min || bottom > ya.max)
|
| continue;
|
|
|
| var color = series.candles[open>close?'downFillColor':'upFillColor'];
|
| /**
|
| * Fill the candle.
|
| */
|
| if(series.candles.fill && !series.candles.barcharts){
|
| ctx.fillStyle = Flotr.parseColor(color).scale(null, null, null, series.candles.fillOpacity).toString();
|
| ctx.fillRect(tHoz(left, xa), tVert(top2, ya) + offset, tHoz(right, xa) - tHoz(left, xa), tVert(bottom2, ya) - tVert(top2, ya));
|
| }
|
|
|
| /**
|
| * Draw candle outline/border, high, low.
|
| */
|
| if(series.candles.lineWidth || series.candles.wickLineWidth){
|
| var x, y, pixelOffset = (series.candles.wickLineWidth % 2) / 2;
|
|
|
| x = Math.floor(tHoz((left + right) / 2), xa) + pixelOffset;
|
|
|
| ctx.save();
|
| ctx.strokeStyle = color;
|
| ctx.lineWidth = series.candles.wickLineWidth;
|
| ctx.lineCap = 'butt';
|
|
|
| if (series.candles.barcharts) {
|
| ctx.beginPath();
|
|
|
| ctx.moveTo(x, Math.floor(tVert(top, ya) + offset));
|
| ctx.lineTo(x, Math.floor(tVert(bottom, ya) + offset));
|
|
|
| y = Math.floor(tVert(open, ya) + offset)+0.5;
|
| ctx.moveTo(Math.floor(tHoz(left, xa))+pixelOffset, y);
|
| ctx.lineTo(x, y);
|
|
|
| y = Math.floor(tVert(close, ya) + offset)+0.5;
|
| ctx.moveTo(Math.floor(tHoz(right, xa))+pixelOffset, y);
|
| ctx.lineTo(x, y);
|
| }
|
| else {
|
| ctx.strokeRect(tHoz(left, xa), tVert(top2, ya) + offset, tHoz(right, xa) - tHoz(left, xa), tVert(bottom2, ya) - tVert(top2, ya));
|
|
|
| ctx.beginPath();
|
| ctx.moveTo(x, Math.floor(tVert(top2, ya) + offset));
|
| ctx.lineTo(x, Math.floor(tVert(top, ya) + offset));
|
| ctx.moveTo(x, Math.floor(tVert(bottom2, ya) + offset));
|
| ctx.lineTo(x, Math.floor(tVert(bottom, ya) + offset));
|
| }
|
|
|
| ctx.stroke();
|
| ctx.restore();
|
| }
|
| }
|
| },
|
| plotCandlesShadows: function(series, offset){
|
| var data = series.data;
|
| if(data.length < 1 || series.candles.barcharts) return;
|
|
|
| var xa = series.xaxis,
|
| ya = series.yaxis,
|
| tHoz = this.tHoz.bind(this),
|
| tVert = this.tVert.bind(this),
|
| sw = this.options.shadowSize;
|
|
|
| for(var i = 0; i < data.length; i++){
|
| var d = data[i],
|
| x = d[0],
|
| open = d[1],
|
| high = d[2],
|
| low = d[3],
|
| close = d[4];
|
|
|
| var left = x,
|
| right = x + series.candles.candleWidth,
|
| bottom = Math.max(ya.min, Math.min(open, close)),
|
| top = Math.min(ya.max, Math.max(open, close));
|
|
|
| if(right < xa.min || left > xa.max || top < ya.min || bottom > ya.max)
|
| continue;
|
|
|
| var width = tHoz(right, xa)-tHoz(left, xa)-((tHoz(right, xa)+sw <= this.plotWidth) ? 0 : sw);
|
| var height = Math.max(0, tVert(bottom, ya)-tVert(top, ya)-((tVert(bottom, ya)+sw <= this.plotHeight) ? 0 : sw));
|
|
|
| this.ctx.fillStyle = 'rgba(0,0,0,0.05)';
|
| this.ctx.fillRect(Math.min(tHoz(left, xa)+sw, this.plotWidth), Math.min(tVert(top, ya)+sw, this.plotWidth), width, height);
|
| }
|
| },
|
| /**
|
| * Function: drawSeriesPie
|
| *
|
| * Function draws a pie in the canvas element.
|
| *
|
| * Parameters:
|
| * series - Series with options.pie.show = true.
|
| *
|
| * Returns:
|
| * void
|
| */
|
| drawSeriesPie: function(series) {
|
| if (!this.options.pie.drawn) {
|
| var ctx = this.ctx,
|
| options = this.options,
|
| lw = series.pie.lineWidth,
|
| sw = series.shadowSize,
|
| data = series.data,
|
| radius = (Math.min(this.canvasWidth, this.canvasHeight) * series.pie.sizeRatio) / 2,
|
| html = [];
|
|
|
| var vScale = 1;//Math.cos(series.pie.viewAngle);
|
| var plotTickness = Math.sin(series.pie.viewAngle)*series.pie.spliceThickness / vScale;
|
|
|
| var style = {
|
| size: options.fontSize*1.2,
|
| color: options.grid.color,
|
| weight: 1.5
|
| };
|
|
|
| var center = {
|
| x: (this.canvasWidth+this.plotOffset.left)/2,
|
| y: (this.canvasHeight-this.plotOffset.bottom)/2
|
| };
|
|
|
| // Pie portions
|
| var portions = this.series.collect(function(hash, index){
|
| if (hash.pie.show)
|
| return {
|
| name: (hash.label || hash.data[0][1]),
|
| value: [index, hash.data[0][1]],
|
| explode: hash.pie.explode
|
| };
|
| });
|
|
|
| // Sum of the portions' angles
|
| var sum = portions.pluck('value').pluck(1).inject(0, function(acc, n) { return acc + n; });
|
|
|
| var fraction = 0.0,
|
| angle = series.pie.startAngle,
|
| value = 0.0;
|
|
|
| var slices = portions.collect(function(slice){
|
| angle += fraction;
|
| value = parseFloat(slice.value[1]); // @warning : won't support null values !!
|
| fraction = value/sum;
|
| return {
|
| name: slice.name,
|
| fraction: fraction,
|
| x: slice.value[0],
|
| y: value,
|
| explode: slice.explode,
|
| startAngle: 2 * angle * Math.PI,
|
| endAngle: 2 * (angle + fraction) * Math.PI
|
| };
|
| });
|
|
|
| ctx.save();
|
|
|
| if(sw > 0){
|
| slices.each(function (slice) {
|
| var bisection = (slice.startAngle + slice.endAngle) / 2;
|
|
|
| var xOffset = center.x + Math.cos(bisection) * slice.explode + sw;
|
| var yOffset = center.y + Math.sin(bisection) * slice.explode + sw;
|
|
|
| this.plotSlice(xOffset, yOffset, radius, slice.startAngle, slice.endAngle, false, vScale);
|
|
|
| ctx.fillStyle = 'rgba(0,0,0,0.1)';
|
| ctx.fill();
|
| }, this);
|
| }
|
|
|
| if (options.HtmlText) {
|
| html = ['<div style="color:' + this.options.grid.color + '" class="flotr-labels">'];
|
| }
|
|
|
| slices.each(function (slice, index) {
|
| var bisection = (slice.startAngle + slice.endAngle) / 2;
|
| var color = options.colors[index];
|
|
|
| var xOffset = center.x + Math.cos(bisection) * slice.explode;
|
| var yOffset = center.y + Math.sin(bisection) * slice.explode;
|
|
|
| this.plotSlice(xOffset, yOffset, radius, slice.startAngle, slice.endAngle, false, vScale);
|
|
|
| if(series.pie.fill){
|
| ctx.fillStyle = Flotr.parseColor(color).scale(null, null, null, series.pie.fillOpacity).toString();
|
| ctx.fill();
|
| }
|
| ctx.lineWidth = lw;
|
| ctx.strokeStyle = color;
|
| ctx.stroke();
|
|
|
| /*ctx.save();
|
| ctx.scale(1, vScale);
|
|
|
| ctx.moveTo(xOffset, yOffset);
|
| ctx.beginPath();
|
| ctx.lineTo(xOffset, yOffset+plotTickness);
|
| ctx.lineTo(xOffset+Math.cos(slice.startAngle)*radius, yOffset+Math.sin(slice.startAngle)*radius+plotTickness);
|
| ctx.lineTo(xOffset+Math.cos(slice.startAngle)*radius, yOffset+Math.sin(slice.startAngle)*radius);
|
| ctx.lineTo(xOffset, yOffset);
|
| ctx.closePath();
|
| ctx.fill();ctx.stroke();
|
|
|
| ctx.moveTo(xOffset, yOffset);
|
| ctx.beginPath();
|
| ctx.lineTo(xOffset, yOffset+plotTickness);
|
| ctx.lineTo(xOffset+Math.cos(slice.endAngle)*radius, yOffset+Math.sin(slice.endAngle)*radius+plotTickness);
|
| ctx.lineTo(xOffset+Math.cos(slice.endAngle)*radius, yOffset+Math.sin(slice.endAngle)*radius);
|
| ctx.lineTo(xOffset, yOffset);
|
| ctx.closePath();
|
| ctx.fill();ctx.stroke();
|
|
|
| ctx.moveTo(xOffset+Math.cos(slice.startAngle)*radius, yOffset+Math.sin(slice.startAngle)*radius);
|
| ctx.beginPath();
|
| ctx.lineTo(xOffset+Math.cos(slice.startAngle)*radius, yOffset+Math.sin(slice.startAngle)*radius+plotTickness);
|
| ctx.arc(xOffset, yOffset+plotTickness, radius, slice.startAngle, slice.endAngle, false);
|
| ctx.lineTo(xOffset+Math.cos(slice.endAngle)*radius, yOffset+Math.sin(slice.endAngle)*radius);
|
| ctx.arc(xOffset, yOffset, radius, slice.endAngle, slice.startAngle, true);
|
| ctx.closePath();
|
| ctx.fill();ctx.stroke();
|
|
|
| ctx.scale(1, 1/vScale);
|
| this.plotSlice(xOffset, yOffset+plotTickness, radius, slice.startAngle, slice.endAngle, false, vScale);
|
| ctx.stroke();
|
| if(series.pie.fill){
|
| ctx.fillStyle = Flotr.parseColor(color).scale(null, null, null, series.pie.fillOpacity).toString();
|
| ctx.fill();
|
| }
|
|
|
| ctx.restore();*/
|
|
|
| var label = options.pie.labelFormatter(slice);
|
|
|
| var textAlignRight = (Math.cos(bisection) < 0);
|
| var distX = xOffset + Math.cos(bisection) * (series.pie.explode + radius);
|
| var distY = yOffset + Math.sin(bisection) * (series.pie.explode + radius);
|
|
|
| if (slice.fraction && label) {
|
| if (options.HtmlText) {
|
| var divStyle = 'position:absolute;top:' + (distY - 5) + 'px;'; //@todo: change
|
| if (textAlignRight) {
|
| divStyle += 'right:'+(this.canvasWidth - distX)+'px;text-align:right;';
|
| }
|
| else {
|
| divStyle += 'left:'+distX+'px;text-align:left;';
|
| }
|
| html.push('<div style="' + divStyle + '" class="flotr-grid-label">' + label + '</div>');
|
| }
|
| else {
|
| style.halign = textAlignRight ? 'r' : 'l';
|
| ctx.drawText(
|
| label,
|
| distX,
|
| distY + style.size / 2,
|
| style
|
| );
|
| }
|
| }
|
| }, this);
|
|
|
| if (options.HtmlText) {
|
| html.push('</div>');
|
| this.el.insert(html.join(''));
|
| }
|
|
|
| ctx.restore();
|
| options.pie.drawn = true;
|
| }
|
| },
|
| plotSlice: function(x, y, radius, startAngle, endAngle, fill, vScale) {
|
| var ctx = this.ctx;
|
| vScale = vScale || 1;
|
|
|
| ctx.save();
|
| ctx.scale(1, vScale);
|
| ctx.beginPath();
|
| ctx.moveTo(x, y);
|
| ctx.arc (x, y, radius, startAngle, endAngle, fill);
|
| ctx.lineTo(x, y);
|
| ctx.closePath();
|
| ctx.restore();
|
| },
|
| plotPie: function() {},
|
| /**
|
| * Function: insertLegend
|
| *
|
| * Function adds a legend div to the canvas container or draws it on the canvas.
|
| *
|
| * Parameters:
|
| * none
|
| *
|
| * Returns:
|
| * void
|
| */
|
| insertLegend: function(){
|
| if(!this.options.legend.show)
|
| return;
|
|
|
| var series = this.series,
|
| plotOffset = this.plotOffset,
|
| options = this.options,
|
| fragments = [],
|
| rowStarted = false,
|
| ctx = this.ctx,
|
| i;
|
|
|
| var noLegendItems = series.findAll(function(s) {return (s.label && !s.hide)}).size();
|
|
|
| if (noLegendItems) {
|
| if (!options.HtmlText && this.textEnabled) {
|
| var style = {
|
| size: options.fontSize*1.1,
|
| color: options.grid.color
|
| };
|
|
|
| // @todo: take css into account
|
| //var dummyDiv = this.el.insert('<div class="flotr-legend" style="position:absolute;top:-10000px;"></div>');
|
|
|
| var p = options.legend.position,
|
| m = options.legend.margin,
|
| lbw = options.legend.labelBoxWidth,
|
| lbh = options.legend.labelBoxHeight,
|
| lbm = options.legend.labelBoxMargin,
|
| offsetX = plotOffset.left + m,
|
| offsetY = plotOffset.top + m;
|
|
|
| // We calculate the labels' max width
|
| var labelMaxWidth = 0;
|
| for(i = series.length - 1; i > -1; --i){
|
| if(!series[i].label || series[i].hide) continue;
|
| var label = options.legend.labelFormatter(series[i].label);
|
| labelMaxWidth = Math.max(labelMaxWidth, ctx.measureText(label, style));
|
| }
|
|
|
| var legendWidth = Math.round(lbw + lbm*3 + labelMaxWidth),
|
| legendHeight = Math.round(noLegendItems*(lbm+lbh) + lbm);
|
|
|
| if(p.charAt(0) == 's') offsetY = plotOffset.top + this.plotHeight - (m + legendHeight);
|
| if(p.charAt(1) == 'e') offsetX = plotOffset.left + this.plotWidth - (m + legendWidth);
|
|
|
| // Legend box
|
| var color = Flotr.parseColor(options.legend.backgroundColor || 'rgb(240,240,240)').scale(null, null, null, options.legend.backgroundOpacity || 0.1).toString();
|
|
|
| ctx.fillStyle = color;
|
| ctx.fillRect(offsetX, offsetY, legendWidth, legendHeight);
|
| ctx.strokeStyle = options.legend.labelBoxBorderColor;
|
| ctx.strokeRect(Flotr.toPixel(offsetX), Flotr.toPixel(offsetY), legendWidth, legendHeight);
|
|
|
| // Legend labels
|
| var x = offsetX + lbm;
|
| var y = offsetY + lbm;
|
| for(i = 0; i < series.length; i++){
|
| if(!series[i].label || series[i].hide) continue;
|
| var label = options.legend.labelFormatter(series[i].label);
|
|
|
| ctx.fillStyle = series[i].color;
|
| ctx.fillRect(x, y, lbw-1, lbh-1);
|
|
|
| ctx.strokeStyle = options.legend.labelBoxBorderColor;
|
| ctx.lineWidth = 1;
|
| ctx.strokeRect(Math.ceil(x)-1.5, Math.ceil(y)-1.5, lbw+2, lbh+2);
|
|
|
| // Legend text
|
| ctx.drawText(
|
| label,
|
| x + lbw + lbm,
|
| y + (lbh + style.size - ctx.fontDescent(style))/2,
|
| style
|
| );
|
|
|
| y += lbh + lbm;
|
| }
|
| }
|
| else {
|
| for(i = 0; i < series.length; ++i){
|
| if(!series[i].label || series[i].hide) continue;
|
|
|
| if(i % options.legend.noColumns == 0){
|
| fragments.push(rowStarted ? '</tr><tr>' : '<tr>');
|
| rowStarted = true;
|
| }
|
|
|
| var label = options.legend.labelFormatter(series[i].label);
|
|
|
| fragments.push('<td class="flotr-legend-color-box"><div style="border:1px solid ' + options.legend.labelBoxBorderColor + ';padding:1px"><div style="width:' + options.legend.labelBoxWidth + 'px;height:' + options.legend.labelBoxHeight + 'px;background-color:' + series[i].color + '"></div></div></td>' +
|
| '<td class="flotr-legend-label">' + label + '</td>');
|
| }
|
| if(rowStarted) fragments.push('</tr>');
|
|
|
| if(fragments.length > 0){
|
| var table = '<table style="font-size:smaller;color:' + options.grid.color + '">' + fragments.join("") + '</table>';
|
| if(options.legend.container != null){
|
| $(options.legend.container).update(table);
|
| }else{
|
| var pos = '';
|
| var p = options.legend.position, m = options.legend.margin;
|
|
|
| if(p.charAt(0) == 'n') pos += 'top:' + (m + plotOffset.top) + 'px;';
|
| else if(p.charAt(0) == 's') pos += 'bottom:' + (m + plotOffset.bottom) + 'px;';
|
| if(p.charAt(1) == 'e') pos += 'right:' + (m + plotOffset.right) + 'px;';
|
| else if(p.charAt(1) == 'w') pos += 'left:' + (m + plotOffset.left) + 'px;';
|
|
|
| var div = this.el.insert('<div class="flotr-legend" style="position:absolute;z-index:2;' + pos +'">' + table + '</div>').select('div.flotr-legend').first();
|
|
|
| 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){
|
| var tmp = (options.grid.backgroundColor != null) ? options.grid.backgroundColor : Flotr.extractColor(div);
|
| c = Flotr.parseColor(tmp).adjust(null, null, null, 1).toString();
|
| }
|
| this.el.insert('<div class="flotr-legend-bg" style="position:absolute;width:' + div.getWidth() + 'px;height:' + div.getHeight() + 'px;' + pos +'background-color:' + c + ';"> </div>').select('div.flotr-legend-bg').first().setStyle({
|
| 'opacity': options.legend.backgroundOpacity
|
| });
|
| }
|
| }
|
| }
|
| }
|
| }
|
| },
|
| /**
|
| * Function: getEventPosition
|
| *
|
| * Calculates the coordinates from a mouse event object.
|
| *
|
| * Parameters:
|
| * event - Mouse Event object.
|
| *
|
| * Returns:
|
| * Object with x and y coordinates of the mouse.
|
| */
|
| getEventPosition: function (event){
|
| var offset = this.overlay.cumulativeOffset(),
|
| rx = (event.pageX - offset.left - this.plotOffset.left),
|
| ry = (event.pageY - offset.top - this.plotOffset.top),
|
| ax = 0, ay = 0
|
|
|
| if(event.pageX == null && event.clientX != null){
|
| var de = document.documentElement, b = document.body;
|
| ax = event.clientX + (de && de.scrollLeft || b.scrollLeft || 0);
|
| ay = event.clientY + (de && de.scrollTop || b.scrollTop || 0);
|
| }else{
|
| ax = event.pageX;
|
| ay = event.pageY;
|
| }
|
|
|
| return {
|
| x: this.axes.x.min + rx / this.axes.x.scale,
|
| x2: this.axes.x2.min + rx / this.axes.x2.scale,
|
| y: this.axes.y.max - ry / this.axes.y.scale,
|
| y2: this.axes.y2.max - ry / this.axes.y2.scale,
|
| relX: rx,
|
| relY: ry,
|
| absX: ax,
|
| absY: ay
|
| };
|
| },
|
| /**
|
| * Function: clickHandler
|
| *
|
| * Handler observes the 'click' event and fires the 'flotr:click' event.
|
| *
|
| * Parameters:
|
| * event - 'click' Event object.
|
| *
|
| * Returns:
|
| * void
|
| */
|
| clickHandler: function(event){
|
| if(this.ignoreClick){
|
| this.ignoreClick = false;
|
| return;
|
| }
|
| this.el.fire('flotr:click', [this.getEventPosition(event), this]);
|
| },
|
| /**
|
| * Function: mouseMoveHandler
|
| *
|
| * Handler observes mouse movement over the graph area. Fires the
|
| * 'flotr:mousemove' event.
|
| *
|
| * Parameters:
|
| * event - 'mousemove' Event object.
|
| *
|
| * Returns:
|
| * void
|
| */
|
| mouseMoveHandler: function(event){
|
| var pos = this.getEventPosition(event);
|
|
|
| this.lastMousePos.pageX = pos.absX;
|
| this.lastMousePos.pageY = pos.absY;
|
| if(this.selectionInterval == null && (this.options.mouse.track || this.series.any(function(s){return s.mouse && s.mouse.track;}))){
|
| this.hit(pos);
|
| }
|
|
|
| this.el.fire('flotr:mousemove', [event, pos, this]);
|
| },
|
| /**
|
| * Function: mouseDownHandler
|
| *
|
| * Handler observes the 'mousedown' event.
|
| *
|
| * Parameters:
|
| * event - 'mousedown' Event object.
|
| *
|
| * Returns:
|
| * void
|
| */
|
| mouseDownHandler: function (event){
|
| if(event.isRightClick()) {
|
| event.stop();
|
| var overlay = this.overlay;
|
| overlay.hide();
|
|
|
| function cancelContextMenu () {
|
| overlay.show();
|
| $(document).stopObserving('mousemove', cancelContextMenu);
|
| }
|
| $(document).observe('mousemove', cancelContextMenu);
|
| return;
|
| }
|
|
|
| if(!this.options.selection.mode || !event.isLeftClick()) return;
|
|
|
| this.setSelectionPos(this.selection.first, event);
|
| if(this.selectionInterval != null){
|
| clearInterval(this.selectionInterval);
|
| }
|
| this.lastMousePos.pageX = null;
|
| this.selectionInterval = setInterval(this.updateSelection.bind(this), 1000/this.options.selection.fps);
|
|
|
| this.mouseUpHandler = this.mouseUpHandler.bind(this);
|
| $(document).observe('mouseup', this.mouseUpHandler);
|
| },
|
| /**
|
| * Function: (private) fireSelectEvent
|
| *
|
| * Fires the 'flotr:select' event when the user made a selection.
|
| *
|
| * Parameters:
|
| * none
|
| *
|
| * Returns:
|
| * void
|
| */
|
| fireSelectEvent: function(){
|
| var a = this.axes, selection = this.selection,
|
| x1 = (selection.first.x <= selection.second.x) ? selection.first.x : selection.second.x,
|
| x2 = (selection.first.x <= selection.second.x) ? selection.second.x : selection.first.x,
|
| y1 = (selection.first.y >= selection.second.y) ? selection.first.y : selection.second.y,
|
| y2 = (selection.first.y >= selection.second.y) ? selection.second.y : selection.first.y;
|
|
|
| x1 = a.x.min + x1 / a.x.scale;
|
| x2 = a.x.min + x2 / a.x.scale;
|
| y1 = a.y.max - y1 / a.y.scale;
|
| y2 = a.y.max - y2 / a.y.scale;
|
|
|
| this.el.fire('flotr:select', [{x1:x1, y1:y1, x2:x2, y2:y2}, this]);
|
| },
|
| /**
|
| * Function: (private) mouseUpHandler
|
| *
|
| * Handler observes the mouseup event for the document.
|
| *
|
| * Parameters:
|
| * event - 'mouseup' Event object.
|
| *
|
| * Returns:
|
| * void
|
| */
|
| mouseUpHandler: function(event){
|
| $(document).stopObserving('mouseup', this.mouseUpHandler);
|
| event.stop();
|
|
|
| if(this.selectionInterval != null){
|
| clearInterval(this.selectionInterval);
|
| this.selectionInterval = null;
|
| }
|
|
|
| this.setSelectionPos(this.selection.second, event);
|
| this.clearSelection();
|
|
|
| if(this.selectionIsSane()){
|
| this.drawSelection();
|
| this.fireSelectEvent();
|
| this.ignoreClick = true;
|
| }
|
| },
|
| /**
|
| * Function: setSelectionPos
|
| *
|
| * Calculates the position of the selection.
|
| *
|
| * Parameters:
|
| * pos - Position object.
|
| * event - Event object.
|
| *
|
| * Returns:
|
| * void
|
| */
|
| setSelectionPos: function(pos, event) {
|
| var options = this.options,
|
| offset = $(this.overlay).cumulativeOffset();
|
|
|
| if(options.selection.mode.indexOf('x') == -1){
|
| pos.x = (pos == this.selection.first) ? 0 : this.plotWidth;
|
| }else{
|
| pos.x = event.pageX - offset.left - this.plotOffset.left;
|
| pos.x = Math.min(Math.max(0, pos.x), this.plotWidth);
|
| }
|
|
|
| if (options.selection.mode.indexOf('y') == -1){
|
| pos.y = (pos == this.selection.first) ? 0 : this.plotHeight;
|
| }else{
|
| pos.y = event.pageY - offset.top - this.plotOffset.top;
|
| pos.y = Math.min(Math.max(0, pos.y), this.plotHeight);
|
| }
|
| },
|
| /**
|
| * Function: updateSelection
|
| *
|
| * Updates (draws) the selection box.
|
| *
|
| * Parameters:
|
| * none
|
| *
|
| * Returns:
|
| * void
|
| */
|
| updateSelection: function(){
|
| if(this.lastMousePos.pageX == null) return;
|
|
|
| this.setSelectionPos(this.selection.second, this.lastMousePos);
|
| this.clearSelection();
|
|
|
| if(this.selectionIsSane()) this.drawSelection();
|
| },
|
| /**
|
| * Function: clearSelection
|
| *
|
| * Removes the selection box from the overlay canvas.
|
| *
|
| * Parameters:
|
| * none
|
| *
|
| * Returns:
|
| * void
|
| */
|
| clearSelection: function() {
|
| if(this.prevSelection == null) return;
|
|
|
| var prevSelection = this.prevSelection,
|
| octx = this.octx,
|
| plotOffset = this.plotOffset,
|
| x = Math.min(prevSelection.first.x, prevSelection.second.x),
|
| y = Math.min(prevSelection.first.y, prevSelection.second.y),
|
| w = Math.abs(prevSelection.second.x - prevSelection.first.x),
|
| h = Math.abs(prevSelection.second.y - prevSelection.first.y);
|
|
|
| octx.clearRect(x + plotOffset.left - octx.lineWidth,
|
| y + plotOffset.top - octx.lineWidth,
|
| w + octx.lineWidth*2,
|
| h + octx.lineWidth*2);
|
|
|
| this.prevSelection = null;
|
| },
|
| /**
|
| * Function: setSelection
|
| *
|
| * Allows the user the manually select an area.
|
| *
|
| * Parameters:
|
| * area - Object with coordinates to select.
|
| *
|
| * Returns:
|
| * void
|
| */
|
| setSelection: function(area){
|
| var options = this.options,
|
| xa = this.axes.x,
|
| ya = this.axes.y,
|
| vertScale = yaxis.scale,
|
| hozScale = xaxis.scale,
|
| selX = options.selection.mode.indexOf('x') != -1,
|
| selY = options.selection.mode.indexOf('y') != -1;
|
|
|
| this.clearSelection();
|
|
|
| this.selection.first.y = selX ? 0 : (ya.max - area.y1) * vertScale;
|
| this.selection.second.y = selX ? this.plotHeight : (ya.max - area.y2) * vertScale;
|
| this.selection.first.x = selY ? 0 : (area.x1 - xa.min) * hozScale;
|
| this.selection.second.x = selY ? this.plotWidth : (area.x2 - xa.min) * hozScale;
|
|
|
| this.drawSelection();
|
| this.fireSelectEvent();
|
| },
|
| /**
|
| * Function: (private) drawSelection
|
| *
|
| * Draws the selection box.
|
| *
|
| * Parameters:
|
| * none
|
| *
|
| * Returns:
|
| * void
|
| */
|
| drawSelection: function() {
|
| var prevSelection = this.prevSelection,
|
| selection = this.selection,
|
| octx = this.octx,
|
| options = this.options,
|
| plotOffset = this.plotOffset;
|
|
|
| if(prevSelection != null &&
|
| selection.first.x == prevSelection.first.x &&
|
| selection.first.y == prevSelection.first.y &&
|
| selection.second.x == prevSelection.second.x &&
|
| selection.second.y == prevSelection.second.y)
|
| return;
|
|
|
| octx.strokeStyle = Flotr.parseColor(options.selection.color).scale(null, null, null, 0.8).toString();
|
| octx.lineWidth = 1;
|
| octx.lineJoin = 'round';
|
| octx.fillStyle = Flotr.parseColor(options.selection.color).scale(null, null, null, 0.4).toString();
|
|
|
| this.prevSelection = {
|
| first: { x: selection.first.x, y: selection.first.y },
|
| second: { x: selection.second.x, y: selection.second.y }
|
| };
|
|
|
| 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);
|
|
|
| octx.fillRect(x + plotOffset.left, y + plotOffset.top, w, h);
|
| octx.strokeRect(x + plotOffset.left, y + plotOffset.top, w, h);
|
| },
|
| /**
|
| * Function: (private) selectionIsSane
|
| *
|
| * Determines whether or not the selection is sane and should be drawn.
|
| *
|
| * Parameters:
|
| * none
|
| *
|
| * Returns:
|
| * boolean - True when sane, false otherwise.
|
| */
|
| selectionIsSane: function(){
|
| var selection = this.selection;
|
| return Math.abs(selection.second.x - selection.first.x) >= 5 &&
|
| Math.abs(selection.second.y - selection.first.y) >= 5;
|
| },
|
| /**
|
| * Function: clearHit
|
| *
|
| * Removes the mouse tracking point from the overlay.
|
| *
|
| * Parameters:
|
| * none
|
| *
|
| * Returns:
|
| * void
|
| */
|
| clearHit: function(){
|
| if(this.prevHit){
|
| var options = this.options,
|
| plotOffset = this.plotOffset,
|
| prevHit = this.prevHit;
|
|
|
| this.octx.clearRect(
|
| this.tHoz(prevHit.x) + plotOffset.left - options.points.radius*2,
|
| this.tVert(prevHit.y) + plotOffset.top - options.points.radius*2,
|
| options.points.radius*3 + options.points.lineWidth*3,
|
| options.points.radius*3 + options.points.lineWidth*3
|
| );
|
| this.prevHit = null;
|
| }
|
| },
|
| /**
|
| * Function: hit
|
| *
|
| * Retrieves the nearest data point from the mouse cursor. If it's within
|
| * a certain range, draw a point on the overlay canvas and display the x and y
|
| * value of the data.
|
| *
|
| * Parameters:
|
| * mouse - Object that holds the relative x and y coordinates of the cursor.
|
| *
|
| * Returns:
|
| * void
|
| */
|
| hit: function(mouse){
|
| var series = this.series,
|
| options = this.options,
|
| prevHit = this.prevHit,
|
| plotOffset = this.plotOffset,
|
| octx = this.octx,
|
| data, xsens, ysens,
|
| /**
|
| * Nearest data element.
|
| */
|
| i, n = {
|
| dist:Number.MAX_VALUE,
|
| x:null,
|
| y:null,
|
| relX:mouse.relX,
|
| relY:mouse.relY,
|
| absX:mouse.absX,
|
| absY:mouse.absY,
|
| mouse:null
|
| };
|
|
|
| for(i = 0; i < series.length; i++){
|
| s = series[i];
|
| if(!s.mouse.track) continue;
|
| data = s.data;
|
| xsens = (s.xaxis.scale*s.mouse.sensibility);
|
| ysens = (s.yaxis.scale*s.mouse.sensibility);
|
|
|
| for(var j = 0, xpow, ypow; j < data.length; j++){
|
| if (data[j][1] === null) continue;
|
| xpow = Math.pow(s.xaxis.scale*(data[j][0] - mouse.x), 2);
|
| ypow = Math.pow(s.yaxis.scale*(data[j][1] - mouse.y), 2);
|
| if(xpow < xsens && ypow < ysens && Math.sqrt(xpow+ypow) < n.dist){
|
| n.dist = Math.sqrt(xpow+ypow);
|
| n.x = data[j][0];
|
| n.y = data[j][1];
|
| n.mouse = s.mouse;
|
| }
|
| }
|
| }
|
|
|
| if(n.mouse && n.mouse.track && !prevHit || (prevHit && (n.x != prevHit.x || n.y != prevHit.y))){
|
| var mt = this.mouseTrack || this.el.select(".flotr-mouse-value")[0],
|
| pos = '',
|
| p = options.mouse.position,
|
| m = options.mouse.margin,
|
| elStyle = 'opacity:0.7;background-color:#000;color:#fff;display:none;position:absolute;padding:2px 8px;-moz-border-radius:4px;border-radius:4px;white-space:nowrap;';
|
|
|
| if (!options.mouse.relative) { // absolute to the canvas
|
| if(p.charAt(0) == 'n') pos += 'top:' + (m + plotOffset.top) + 'px;';
|
| else if(p.charAt(0) == 's') pos += 'bottom:' + (m + plotOffset.bottom) + 'px;';
|
| if(p.charAt(1) == 'e') pos += 'right:' + (m + plotOffset.right) + 'px;';
|
| else if(p.charAt(1) == 'w') pos += 'left:' + (m + plotOffset.left) + 'px;';
|
| }
|
| else { // relative to the mouse
|
| if(p.charAt(0) == 'n') pos += 'bottom:' + (m - plotOffset.top - this.tVert(n.y) + this.canvasHeight) + 'px;';
|
| else if(p.charAt(0) == 's') pos += 'top:' + (m + plotOffset.top + this.tVert(n.y)) + 'px;';
|
| if(p.charAt(1) == 'e') pos += 'left:' + (m + plotOffset.left + this.tHoz(n.x)) + 'px;';
|
| else if(p.charAt(1) == 'w') pos += 'right:' + (m - plotOffset.left - this.tHoz(n.x) + this.canvasWidth) + 'px;';
|
| }
|
|
|
| elStyle += pos;
|
|
|
| if(!mt){
|
| this.el.insert('<div class="flotr-mouse-value" style="'+elStyle+'"></div>');
|
| mt = this.mouseTrack = this.el.select('.flotr-mouse-value').first();
|
| }
|
| else {
|
| this.mouseTrack = mt.setStyle(elStyle);
|
| }
|
|
|
| if(n.x !== null && n.y !== null){
|
| mt.show();
|
|
|
| this.clearHit();
|
| if(n.mouse.lineColor != null){
|
| octx.save();
|
| octx.translate(plotOffset.left, plotOffset.top);
|
| octx.lineWidth = options.points.lineWidth;
|
| octx.strokeStyle = n.mouse.lineColor;
|
| octx.fillStyle = '#ffffff';
|
| octx.beginPath();
|
| octx.arc(this.tHoz(n.x), this.tVert(n.y), options.mouse.radius, 0, 2 * Math.PI, true);
|
| octx.fill();
|
| octx.stroke();
|
| octx.restore();
|
| }
|
| this.prevHit = n;
|
|
|
| var decimals = n.mouse.trackDecimals;
|
| if(decimals == null || decimals < 0) decimals = 0;
|
|
|
| mt.innerHTML = n.mouse.trackFormatter({x: n.x.toFixed(decimals), y: n.y.toFixed(decimals)});
|
| mt.fire('flotr:hit', [n, this]);
|
| }
|
| else if(prevHit){
|
| mt.hide();
|
| this.clearHit();
|
| }
|
| }
|
| },
|
| saveImage: function (type, width, height, replaceCanvas) {
|
| var image = null;
|
| switch (type) {
|
| case 'jpeg':
|
| case 'jpg': image = Canvas2Image.saveAsJPEG(this.canvas, replaceCanvas, width, height); break;
|
| default:
|
| case 'png': image = Canvas2Image.saveAsPNG(this.canvas, replaceCanvas, width, height); break;
|
| case 'bmp': image = Canvas2Image.saveAsBMP(this.canvas, replaceCanvas, width, height); break;
|
| }
|
| if (Object.isElement(image) && replaceCanvas) {
|
| this.restoreCanvas();
|
| this.canvas.hide();
|
| this.overlay.hide();
|
| this.el.insert(image.setStyle({position: 'absolute'}));
|
| }
|
| },
|
| restoreCanvas: function() {
|
| this.canvas.show();
|
| this.overlay.show();
|
| this.el.select('img').invoke('remove');
|
| }
|
| });
|
|
|
| Flotr.Color = Class.create({
|
| initialize: function(r, g, b, a){
|
| this.rgba = ['r','g','b','a'];
|
| var x = 4;
|
| while(-1<--x){
|
| this[this.rgba[x]] = arguments[x] || ((x==3) ? 1.0 : 0);
|
| }
|
| this.normalize();
|
| },
|
|
|
| adjust: function(rd, gd, bd, ad) {
|
| var x = 4;
|
| while(-1<--x){
|
| if(arguments[x] != null)
|
| this[this.rgba[x]] += arguments[x];
|
| }
|
| return this.normalize();
|
| },
|
|
|
| clone: function(){
|
| return new Flotr.Color(this.r, this.b, this.g, this.a);
|
| },
|
|
|
| limit: function(val,minVal,maxVal){
|
| return Math.max(Math.min(val, maxVal), minVal);
|
| },
|
|
|
| normalize: function(){
|
| var limit = this.limit;
|
| this.r = limit(parseInt(this.r), 0, 255);
|
| this.g = limit(parseInt(this.g), 0, 255);
|
| this.b = limit(parseInt(this.b), 0, 255);
|
| this.a = limit(this.a, 0, 1);
|
| return this;
|
| },
|
|
|
| scale: function(rf, gf, bf, af){
|
| var x = 4;
|
| while(-1<--x){
|
| if(arguments[x] != null)
|
| this[this.rgba[x]] *= arguments[x];
|
| }
|
| return this.normalize();
|
| },
|
|
|
| distance: function(color){
|
| if (!color) return;
|
| color = new Flotr.parseColor(color);
|
| var dist = 0;
|
| var x = 3;
|
| while(-1<--x){
|
| dist += Math.abs(this[this.rgba[x]] - color[this.rgba[x]]);
|
| }
|
| return dist;
|
| },
|
|
|
| toString: function(){
|
| return (this.a >= 1.0) ? 'rgb('+[this.r,this.g,this.b].join(',')+')' : 'rgba('+[this.r,this.g,this.b,this.a].join(',')+')';
|
| }
|
| });
|
|
|
| Flotr.Color.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]
|
| };
|
|
|
| // not used yet
|
| Flotr.Date = {
|
| format: function(d, format) {
|
| if (!d) return;
|
|
|
| var leftPad = function(n) {
|
| n = n.toString();
|
| return n.length == 1 ? "0" + n : n;
|
| };
|
|
|
| var r = [];
|
| var escape = false;
|
|
|
| for (var i = 0; i < format.length; ++i) {
|
| var c = format.charAt(i);
|
|
|
| if (escape) {
|
| switch (c) {
|
| case 'h': c = d.getUTCHours().toString(); break;
|
| case 'H': c = leftPad(d.getUTCHours()); break;
|
| case 'M': c = leftPad(d.getUTCMinutes()); break;
|
| case 'S': c = leftPad(d.getUTCSeconds()); break;
|
| case 'd': c = d.getUTCDate().toString(); break;
|
| case 'm': c = (d.getUTCMonth() + 1).toString(); break;
|
| case 'y': c = d.getUTCFullYear().toString(); break;
|
| case 'b': c = Flotr.Date.monthNames[d.getUTCMonth()]; break;
|
| }
|
| r.push(c);
|
| escape = false;
|
| }
|
| else {
|
| if (c == "%")
|
| escape = true;
|
| else
|
| r.push(c);
|
| }
|
| }
|
| return r.join("");
|
| },
|
| timeUnits: {
|
| "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
|
| 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"]
|
| ],
|
| monthNames: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
|
| };
|
