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/**
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* o-------------------------------------------------------------------------------o
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* | This file is part of the RGraph package. RGraph is Free software, licensed |
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* | under the MIT license - so it's free to use for all purposes. Extended |
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* | support is available if required and donations are always welcome! You can |
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* | read more here: |
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* | http://www.rgraph.net/support |
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* o-------------------------------------------------------------------------------o
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*/
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if (typeof(RGraph) == 'undefined') RGraph = {};
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/**
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* The bi-polar/age frequency constructor.
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*
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* @param string id The id of the canvas
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* @param array left The left set of data points
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* @param array right The right set of data points
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*
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* REMEMBER If ymin is implemented you need to update the .getValue() method
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*/
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RGraph.Bipolar = function (id, left, right)
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{
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// Get the canvas and context objects
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this.id = id;
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this.canvas = document.getElementById(typeof id === 'object' ? id.id : id);
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this.context = this.canvas.getContext('2d');
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this.canvas.__object__ = this;
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this.type = 'bipolar';
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this.coords = [];
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this.coordsLeft = [];
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this.coordsRight = [];
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this.max = 0;
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this.isRGraph = true;
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this.uid = RGraph.CreateUID();
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this.canvas.uid = this.canvas.uid ? this.canvas.uid : RGraph.CreateUID();
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this.coordsText = [];
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/**
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* Compatibility with older browsers
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*/
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RGraph.OldBrowserCompat(this.context);
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// The left and right data respectively
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this.left = left;
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this.right = right;
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this.data = [left, right];
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this.properties = {
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'chart.margin': 2,
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'chart.xtickinterval': null,
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'chart.labels': [],
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'chart.labels.above': false,
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'chart.text.size': 10,
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'chart.text.color': 'black', // (Simple) gradients are not supported
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'chart.text.font': 'Arial',
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'chart.title.left': '',
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'chart.title.right': '',
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'chart.gutter.center': 60,
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'chart.gutter.left': 25,
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'chart.gutter.right': 25,
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'chart.gutter.top': 25,
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'chart.gutter.bottom': 25,
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'chart.title': '',
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'chart.title.background': null,
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'chart.title.hpos': null,
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'chart.title.vpos': null,
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'chart.title.bold': true,
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'chart.title.font': null,
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'chart.title.x': null,
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'chart.title.y': null,
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'chart.title.halign': null,
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'chart.title.valign': null,
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'chart.colors': ['#0f0'],
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'chart.contextmenu': null,
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'chart.tooltips': null,
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'chart.tooltips.effect': 'fade',
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'chart.tooltips.css.class': 'RGraph_tooltip',
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'chart.tooltips.highlight': true,
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'chart.tooltips.event': 'onclick',
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'chart.highlight.stroke': 'rgba(0,0,0,0)',
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'chart.highlight.fill': 'rgba(255,255,255,0.7)',
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'chart.units.pre': '',
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'chart.units.post': '',
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'chart.shadow': false,
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'chart.shadow.color': '#666',
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'chart.shadow.offsetx': 3,
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'chart.shadow.offsety': 3,
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'chart.shadow.blur': 3,
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'chart.annotatable': false,
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'chart.annotate.color': 'black',
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'chart.xmax': null,
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'chart.xmin': 0,
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'chart.scale.decimals': null,
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'chart.scale.point': '.',
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'chart.scale.thousand': ',',
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'chart.axis.color': 'black',
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'chart.zoom.factor': 1.5,
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'chart.zoom.fade.in': true,
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'chart.zoom.fade.out': true,
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'chart.zoom.hdir': 'right',
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'chart.zoom.vdir': 'down',
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'chart.zoom.frames': 25,
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'chart.zoom.delay': 16.666,
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'chart.zoom.shadow': true,
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'chart.zoom.background': true,
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'chart.zoom.action': 'zoom',
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'chart.resizable': false,
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'chart.resize.handle.background': null,
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'chart.strokestyle': 'rgba(0,0,0,0)',
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'chart.events.mousemove': null,
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'chart.events.click': null,
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'chart.linewidth': 1,
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'chart.noaxes': false,
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'chart.xlabels': true,
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'chart.numyticks': null,
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'chart.numxticks': 5,
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'chart.axis.linewidth': 1,
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'chart.labels.count': 5
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}
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// Pad the arrays so they're the same size
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while (this.left.length < this.right.length) this.left.push(0);
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while (this.left.length > this.right.length) this.right.push(0);
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/**
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* Set the default for the number of Y tickmarks
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*/
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this.properties['chart.numyticks'] = this.left.length;
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/**
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* Create the dollar objects so that functions can be added to them
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*/
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var linear_data = RGraph.array_linearize(this.left, this.right);
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for (var i=0; i<linear_data.length; ++i) {
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this['$' + i] = {};
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}
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/**
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* Translate half a pixel for antialiasing purposes - but only if it hasn't beeen
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* done already
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*/
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if (!this.canvas.__rgraph_aa_translated__) {
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this.context.translate(0.5,0.5);
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this.canvas.__rgraph_aa_translated__ = true;
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}
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///////////////////////////////// SHORT PROPERTIES /////////////////////////////////
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var RG = RGraph;
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var ca = this.canvas;
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var co = ca.getContext('2d');
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var prop = this.properties;
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//var $jq = jQuery;
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//////////////////////////////////// METHODS ///////////////////////////////////////
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/**
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* The setter
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*
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* @param name string The name of the parameter to set
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* @param value mixed The value of the paraneter
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*/
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this.Set = function (name, value)
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{
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name = name.toLowerCase();
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/**
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* This should be done first - prepend the propertyy name with "chart." if necessary
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*/
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if (name.substr(0,6) != 'chart.') {
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name = 'chart.' + name;
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}
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prop[name] = value;
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return this;
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}
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/**
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* The getter
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*
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* @param name string The name of the parameter to get
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*/
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this.Get = function (name)
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{
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/**
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* This should be done first - prepend the property name with "chart." if necessary
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*/
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if (name.substr(0,6) != 'chart.') {
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name = 'chart.' + name;
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}
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return this.properties[name.toLowerCase()];
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}
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/**
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* Draws the graph
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*/
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this.Draw = function ()
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{
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/**
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* Fire the onbeforedraw event
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*/
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RG.FireCustomEvent(this, 'onbeforedraw');
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/**
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* Parse the colors. This allows for simple gradient syntax
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*/
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if (!this.colorsParsed) {
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this.parseColors();
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// Don't want to do this again
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this.colorsParsed = true;
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}
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/**
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* This is new in May 2011 and facilitates indiviual gutter settings,
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* eg chart.gutter.left
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*/
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this.gutterLeft = prop['chart.gutter.left'];
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this.gutterRight = prop['chart.gutter.right'];
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this.gutterTop = prop['chart.gutter.top'];
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this.gutterBottom = prop['chart.gutter.bottom'];
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// Reset the data to what was initially supplied
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this.left = this.data[0];
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this.right = this.data[1];
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// Sequential color index
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this.sequentialColorIndex = 0;
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/**
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* Reset the coords array
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*/
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this.coords = [];
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this.GetMax();
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this.DrawAxes();
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this.DrawTicks();
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this.DrawLeftBars();
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this.DrawRightBars();
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// Redraw the bars so that shadows on not on top
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this.RedrawBars();
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this.DrawAxes();
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this.DrawLabels();
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this.DrawTitles();
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/**
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* Setup the context menu if required
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*/
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if (prop['chart.contextmenu']) {
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RG.ShowContext(this);
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}
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/**
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* This function enables resizing
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*/
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if (prop['chart.resizable']) {
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RG.AllowResizing(this);
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}
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/**
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* This installs the event listeners
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*/
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RG.InstallEventListeners(this);
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/**
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* Fire the RGraph ondraw event
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*/
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RG.FireCustomEvent(this, 'ondraw');
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return this;
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}
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/**
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* Draws the axes
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*/
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this.DrawAxes = function ()
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{
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// Set the linewidth
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co.lineWidth = prop['chart.axis.linewidth'] + 0.001;
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// Draw the left set of axes
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co.beginPath();
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co.strokeStyle = prop['chart.axis.color'];
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this.axisWidth = (ca.width - prop['chart.gutter.center'] - this.gutterLeft - this.gutterRight) / 2;
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this.axisHeight = ca.height - this.gutterTop - this.gutterBottom;
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// This must be here so that the two above variables are calculated
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if (prop['chart.noaxes']) {
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return;
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}
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co.moveTo(this.gutterLeft, Math.round( ca.height - this.gutterBottom));
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co.lineTo(this.gutterLeft + this.axisWidth, Math.round( ca.height - this.gutterBottom));
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co.moveTo(Math.round( this.gutterLeft + this.axisWidth), ca.height - this.gutterBottom);
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co.lineTo(Math.round( this.gutterLeft + this.axisWidth), this.gutterTop);
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co.stroke();
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// Draw the right set of axes
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co.beginPath();
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var x = this.gutterLeft + this.axisWidth + prop['chart.gutter.center'];
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co.moveTo(Math.round( x), this.gutterTop);
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co.lineTo(Math.round( x), ca.height - this.gutterBottom);
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co.moveTo(Math.round( x), Math.round( ca.height - this.gutterBottom));
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co.lineTo(ca.width - this.gutterRight, Math.round( ca.height - this.gutterBottom));
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co.stroke();
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}
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/**
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* Draws the tick marks on the axes
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*/
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this.DrawTicks = function ()
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{
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// Set the linewidth
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co.lineWidth = prop['chart.axis.linewidth'] + 0.001;
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var numDataPoints = this.left.length;
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var barHeight = ( (ca.height - this.gutterTop - this.gutterBottom)- (this.left.length * (prop['chart.margin'] * 2) )) / numDataPoints;
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// Store this for later
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this.barHeight = barHeight;
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// If no axes - no tickmarks
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if (prop['chart.noaxes']) {
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return;
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}
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// Draw the left Y tick marks
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if (prop['chart.numyticks'] > 0) {
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co.beginPath();
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for (var i=0; i<prop['chart.numyticks']; ++i) {
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var y = prop['chart.gutter.top'] + (((ca.height - this.gutterTop - this.gutterBottom) / prop['chart.numyticks']) * i);
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|
388 |
co.moveTo(this.gutterLeft + this.axisWidth , y);
|
|
|
389 |
co.lineTo(this.gutterLeft + this.axisWidth + 3, y);
|
|
|
390 |
}
|
|
|
391 |
co.stroke();
|
|
|
392 |
|
|
|
393 |
//Draw the right axis Y tick marks
|
|
|
394 |
co.beginPath();
|
|
|
395 |
for (var i=0; i<prop['chart.numyticks']; ++i) {
|
|
|
396 |
var y = prop['chart.gutter.top'] + (((ca.height - this.gutterTop - this.gutterBottom) / prop['chart.numyticks']) * i);
|
|
|
397 |
co.moveTo(this.gutterLeft + this.axisWidth + prop['chart.gutter.center'], y);
|
|
|
398 |
co.lineTo(this.gutterLeft + this.axisWidth + prop['chart.gutter.center'] - 3, y);
|
|
|
399 |
}
|
|
|
400 |
co.stroke();
|
|
|
401 |
}
|
|
|
402 |
|
|
|
403 |
|
|
|
404 |
|
|
|
405 |
/**
|
|
|
406 |
* X tickmarks
|
|
|
407 |
*/
|
|
|
408 |
if (prop['chart.numxticks'] > 0) {
|
|
|
409 |
var xInterval = this.axisWidth / prop['chart.numxticks'];
|
|
|
410 |
|
|
|
411 |
// Is chart.xtickinterval specified ? If so, use that.
|
|
|
412 |
if (typeof(prop['chart.xtickinterval']) == 'number') {
|
|
|
413 |
xInterval = prop['chart.xtickinterval'];
|
|
|
414 |
}
|
|
|
415 |
|
|
|
416 |
|
|
|
417 |
// Draw the left sides X tick marks
|
|
|
418 |
for (i=this.gutterLeft; i<(this.gutterLeft + this.axisWidth); i+=xInterval) {
|
|
|
419 |
co.beginPath();
|
|
|
420 |
co.moveTo(Math.round( i), ca.height - this.gutterBottom);
|
|
|
421 |
co.lineTo(Math.round( i), (ca.height - this.gutterBottom) + 4);
|
|
|
422 |
co.closePath();
|
|
|
423 |
|
|
|
424 |
co.stroke();
|
|
|
425 |
}
|
|
|
426 |
|
|
|
427 |
// Draw the right sides X tick marks
|
|
|
428 |
var stoppingPoint = ca.width - this.gutterRight;
|
|
|
429 |
|
|
|
430 |
for (i=(this.gutterLeft + this.axisWidth + prop['chart.gutter.center'] + xInterval); i<=stoppingPoint; i+=xInterval) {
|
|
|
431 |
co.beginPath();
|
|
|
432 |
co.moveTo(Math.round(i), ca.height - this.gutterBottom);
|
|
|
433 |
co.lineTo(Math.round(i), (ca.height - this.gutterBottom) + 4);
|
|
|
434 |
co.closePath();
|
|
|
435 |
|
|
|
436 |
co.stroke();
|
|
|
437 |
}
|
|
|
438 |
}
|
|
|
439 |
}
|
|
|
440 |
|
|
|
441 |
|
|
|
442 |
|
|
|
443 |
|
|
|
444 |
/**
|
|
|
445 |
* Figures out the maximum value, or if defined, uses xmax
|
|
|
446 |
*/
|
|
|
447 |
this.GetMax = function()
|
|
|
448 |
{
|
|
|
449 |
var dec = prop['chart.scale.decimals'];
|
|
|
450 |
|
|
|
451 |
// chart.xmax defined
|
|
|
452 |
if (prop['chart.xmax']) {
|
|
|
453 |
|
|
|
454 |
var max = prop['chart.xmax'];
|
|
|
455 |
var min = prop['chart.xmin'];
|
|
|
456 |
|
|
|
457 |
this.scale2 = RG.getScale2(this, {
|
|
|
458 |
'max':max,
|
|
|
459 |
'min':min,
|
|
|
460 |
'strict': true,
|
|
|
461 |
'scale.thousand':prop['chart.scale.thousand'],
|
|
|
462 |
'scale.point':prop['chart.scale.point'],
|
|
|
463 |
'scale.decimals':prop['chart.scale.decimals'],
|
|
|
464 |
'ylabels.count':prop['chart.labels.count'],
|
|
|
465 |
'scale.round':prop['chart.scale.round'],
|
|
|
466 |
'units.pre': prop['chart.units.pre'],
|
|
|
467 |
'units.post': prop['chart.units.post']
|
|
|
468 |
});
|
|
|
469 |
this.max = this.scale2.max;
|
|
|
470 |
this.min = this.scale2.min;
|
|
|
471 |
|
|
|
472 |
|
|
|
473 |
/**
|
|
|
474 |
* Generate the scale ourselves
|
|
|
475 |
*/
|
|
|
476 |
} else {
|
|
|
477 |
|
|
|
478 |
var max = Math.max(RG.array_max(this.left), RG.array_max(this.right));
|
|
|
479 |
|
|
|
480 |
this.scale2 = RG.getScale2(this, {
|
|
|
481 |
'max':max,
|
|
|
482 |
//'strict': true,
|
|
|
483 |
'min':prop['chart.xmin'],
|
|
|
484 |
'scale.thousand':prop['chart.scale.thousand'],
|
|
|
485 |
'scale.point':prop['chart.scale.point'],
|
|
|
486 |
'scale.decimals':prop['chart.scale.decimals'],
|
|
|
487 |
'ylabels.count':prop['chart.labels.count'],
|
|
|
488 |
'scale.round':prop['chart.scale.round'],
|
|
|
489 |
'units.pre': prop['chart.units.pre'],
|
|
|
490 |
'units.post': prop['chart.units.post']
|
|
|
491 |
});
|
|
|
492 |
|
|
|
493 |
|
|
|
494 |
this.max = this.scale2.max;
|
|
|
495 |
this.min = this.scale2.min;
|
|
|
496 |
}
|
|
|
497 |
|
|
|
498 |
// Don't need to return it as it is stored in this.max
|
|
|
499 |
}
|
|
|
500 |
|
|
|
501 |
|
|
|
502 |
|
|
|
503 |
|
|
|
504 |
/**
|
|
|
505 |
* Function to draw the left hand bars
|
|
|
506 |
*/
|
|
|
507 |
this.DrawLeftBars = function ()
|
|
|
508 |
{
|
|
|
509 |
// Set the stroke colour
|
|
|
510 |
co.strokeStyle = prop['chart.strokestyle'];
|
|
|
511 |
|
|
|
512 |
// Set the linewidth
|
|
|
513 |
co.lineWidth = prop['chart.linewidth'];
|
|
|
514 |
|
|
|
515 |
for (i=0; i<this.left.length; ++i) {
|
|
|
516 |
|
|
|
517 |
/**
|
|
|
518 |
* Turn on a shadow if requested
|
|
|
519 |
*/
|
|
|
520 |
if (prop['chart.shadow']) {
|
|
|
521 |
co.shadowColor = prop['chart.shadow.color'];
|
|
|
522 |
co.shadowBlur = prop['chart.shadow.blur'];
|
|
|
523 |
co.shadowOffsetX = prop['chart.shadow.offsetx'];
|
|
|
524 |
co.shadowOffsetY = prop['chart.shadow.offsety'];
|
|
|
525 |
}
|
|
|
526 |
|
|
|
527 |
co.beginPath();
|
|
|
528 |
|
|
|
529 |
// If chart.colors.sequential is specified - handle that
|
|
|
530 |
if (prop['chart.colors.sequential']) {
|
|
|
531 |
co.fillStyle = prop['chart.colors'][this.sequentialColorIndex];
|
|
|
532 |
this.sequentialColorIndex++;
|
|
|
533 |
|
|
|
534 |
} else {
|
|
|
535 |
co.fillStyle = prop['chart.colors'][0];
|
|
|
536 |
}
|
|
|
537 |
|
|
|
538 |
/**
|
|
|
539 |
* Work out the coordinates
|
|
|
540 |
*/
|
|
|
541 |
|
|
|
542 |
var width = (( (this.left[i] - this.min) / (this.max - this.min)) * this.axisWidth);
|
|
|
543 |
|
|
|
544 |
var coords = [Math.round( this.gutterLeft + this.axisWidth - width),
|
|
|
545 |
Math.round( this.gutterTop + (i * ( this.axisHeight / this.left.length)) + prop['chart.margin']),
|
|
|
546 |
width,
|
|
|
547 |
this.barHeight];
|
|
|
548 |
|
|
|
549 |
// Draw the IE shadow if necessary
|
|
|
550 |
if (ISOLD && prop['chart.shadow']) {
|
|
|
551 |
this.DrawIEShadow(coords);
|
|
|
552 |
}
|
|
|
553 |
|
|
|
554 |
|
|
|
555 |
if (this.left[i]) {
|
|
|
556 |
co.strokeRect(coords[0], coords[1], coords[2], coords[3]);
|
|
|
557 |
co.fillRect(coords[0], coords[1], coords[2], coords[3]);
|
|
|
558 |
}
|
|
|
559 |
|
|
|
560 |
co.stroke();
|
|
|
561 |
co.fill();
|
|
|
562 |
|
|
|
563 |
/**
|
|
|
564 |
* Add the coordinates to the coords array
|
|
|
565 |
*/
|
|
|
566 |
this.coords.push([coords[0],coords[1],coords[2],coords[3]]);
|
|
|
567 |
this.coordsLeft.push([coords[0],coords[1],coords[2],coords[3]]);
|
|
|
568 |
}
|
|
|
569 |
|
|
|
570 |
/**
|
|
|
571 |
* Turn off any shadow
|
|
|
572 |
*/
|
|
|
573 |
RG.NoShadow(this);
|
|
|
574 |
|
|
|
575 |
// Reset the linewidth
|
|
|
576 |
co.lineWidth = 1;
|
|
|
577 |
}
|
|
|
578 |
|
|
|
579 |
|
|
|
580 |
|
|
|
581 |
|
|
|
582 |
/**
|
|
|
583 |
* Function to draw the right hand bars
|
|
|
584 |
*/
|
|
|
585 |
this.DrawRightBars = function ()
|
|
|
586 |
{
|
|
|
587 |
// Set the stroke colour
|
|
|
588 |
co.strokeStyle = prop['chart.strokestyle'];
|
|
|
589 |
|
|
|
590 |
// Set the linewidth
|
|
|
591 |
co.lineWidth = prop['chart.linewidth'];
|
|
|
592 |
|
|
|
593 |
/**
|
|
|
594 |
* Turn on a shadow if requested
|
|
|
595 |
*/
|
|
|
596 |
if (prop['chart.shadow']) {
|
|
|
597 |
co.shadowColor = prop['chart.shadow.color'];
|
|
|
598 |
co.shadowBlur = prop['chart.shadow.blur'];
|
|
|
599 |
co.shadowOffsetX = prop['chart.shadow.offsetx'];
|
|
|
600 |
co.shadowOffsetY = prop['chart.shadow.offsety'];
|
|
|
601 |
}
|
|
|
602 |
|
|
|
603 |
for (var i=0; i<this.right.length; ++i) {
|
|
|
604 |
|
|
|
605 |
co.beginPath();
|
|
|
606 |
|
|
|
607 |
// If chart.colors.sequential is specified - handle that
|
|
|
608 |
if (prop['chart.colors.sequential']) {
|
|
|
609 |
co.fillStyle = prop['chart.colors'][this.sequentialColorIndex++];
|
|
|
610 |
} else {
|
|
|
611 |
co.fillStyle = prop['chart.colors'][0];
|
|
|
612 |
}
|
|
|
613 |
|
|
|
614 |
|
|
|
615 |
var width = (((this.right[i] - this.min) / (this.max - this.min)) * this.axisWidth);
|
|
|
616 |
|
|
|
617 |
var coords = [
|
|
|
618 |
Math.round( this.gutterLeft + this.axisWidth + prop['chart.gutter.center']),
|
|
|
619 |
Math.round( prop['chart.margin'] + (i * (this.axisHeight / this.right.length)) + this.gutterTop),
|
|
|
620 |
width,
|
|
|
621 |
this.barHeight
|
|
|
622 |
];
|
|
|
623 |
|
|
|
624 |
// Draw the IE shadow if necessary
|
|
|
625 |
if (ISOLD && prop['chart.shadow']) {
|
|
|
626 |
this.DrawIEShadow(coords);
|
|
|
627 |
}
|
|
|
628 |
if (this.right[i]) {
|
|
|
629 |
co.strokeRect(Math.round( coords[0]), Math.round( coords[1]), coords[2], coords[3]);
|
|
|
630 |
co.fillRect(Math.round( coords[0]), Math.round( coords[1]), coords[2], coords[3]);
|
|
|
631 |
}
|
|
|
632 |
|
|
|
633 |
co.closePath();
|
|
|
634 |
|
|
|
635 |
/**
|
|
|
636 |
* Add the coordinates to the coords array
|
|
|
637 |
*/
|
|
|
638 |
this.coords.push([coords[0],coords[1],coords[2],coords[3]]);
|
|
|
639 |
this.coordsRight.push([coords[0],coords[1],coords[2],coords[3]]);
|
|
|
640 |
}
|
|
|
641 |
|
|
|
642 |
co.stroke();
|
|
|
643 |
|
|
|
644 |
/**
|
|
|
645 |
* Turn off any shadow
|
|
|
646 |
*/
|
|
|
647 |
RG.NoShadow(this);
|
|
|
648 |
|
|
|
649 |
// Reset the linewidth
|
|
|
650 |
co.lineWidth = 1;
|
|
|
651 |
}
|
|
|
652 |
|
|
|
653 |
|
|
|
654 |
|
|
|
655 |
|
|
|
656 |
/**
|
|
|
657 |
* Draws the titles
|
|
|
658 |
*/
|
|
|
659 |
this.DrawLabels = function ()
|
|
|
660 |
{
|
|
|
661 |
co.fillStyle = prop['chart.text.color'];
|
|
|
662 |
|
|
|
663 |
//var labelPoints = new Array();
|
|
|
664 |
var font = prop['chart.text.font'];
|
|
|
665 |
var size = prop['chart.text.size'];
|
|
|
666 |
var labels = prop['chart.labels'];
|
|
|
667 |
var barAreaHeight = ca.height - this.gutterTop - this.gutterBottom;
|
|
|
668 |
|
|
|
669 |
for (var i=0,len=labels.length; i<len; i+=1) {
|
|
|
670 |
RG.Text2(this, {'font':font,
|
|
|
671 |
'size':size,
|
|
|
672 |
'x':this.gutterLeft + this.axisWidth + (prop['chart.gutter.center'] / 2),
|
|
|
673 |
'y':this.gutterTop + ((barAreaHeight / labels.length) * (i)) + ((barAreaHeight / labels.length) / 2),
|
|
|
674 |
'text':String(labels[i] ? String(labels[i]) : ''),
|
|
|
675 |
'halign':'center',
|
|
|
676 |
'valign':'center',
|
|
|
677 |
'marker':false,
|
|
|
678 |
'tag': 'labels'
|
|
|
679 |
});
|
|
|
680 |
}
|
|
|
681 |
|
|
|
682 |
/*
|
|
|
683 |
* OLD STYLE LABELS
|
|
|
684 |
*
|
|
|
685 |
var max = Math.max(this.left.length, this.right.length);
|
|
|
686 |
|
|
|
687 |
for (i=0; i<max; ++i) {
|
|
|
688 |
var barAreaHeight = ca.height - this.gutterTop - this.gutterBottom;
|
|
|
689 |
var barHeight = barAreaHeight / this.left.length;
|
|
|
690 |
var yPos = (i * barAreaHeight) + this.gutterTop;
|
|
|
691 |
|
|
|
692 |
labelPoints.push(this.gutterTop + (i * barHeight) + (barHeight / 2) + 5);
|
|
|
693 |
}
|
|
|
694 |
|
|
|
695 |
for (i=0; i<labelPoints.length; ++i) {
|
|
|
696 |
|
|
|
697 |
RG.Text2(this, {'font':prop['chart.text.font'],
|
|
|
698 |
'size':prop['chart.text.size'],
|
|
|
699 |
'x':this.gutterLeft + this.axisWidth + (prop['chart.gutter.center'] / 2),
|
|
|
700 |
'y':labelPoints[i],
|
|
|
701 |
'text':String(prop['chart.labels'][i] ? prop['chart.labels'][i] : ''),
|
|
|
702 |
'halign':'center',
|
|
|
703 |
'tag': 'labels'
|
|
|
704 |
});
|
|
|
705 |
}
|
|
|
706 |
*/
|
|
|
707 |
|
|
|
708 |
|
|
|
709 |
|
|
|
710 |
|
|
|
711 |
if (prop['chart.xlabels']) {
|
|
|
712 |
|
|
|
713 |
var grapharea = (ca.width - prop['chart.gutter.center'] - this.gutterLeft - this.gutterRight) / 2;
|
|
|
714 |
|
|
|
715 |
// Now draw the X labels for the left hand side
|
|
|
716 |
for (var i=0; i<this.scale2.labels.length; ++i) {
|
|
|
717 |
RG.Text2(this, {'font':font,
|
|
|
718 |
'size':size,
|
|
|
719 |
'x':this.gutterLeft + ((grapharea / this.scale2.labels.length) * i),
|
|
|
720 |
'y':ca.height - this.gutterBottom + 3,
|
|
|
721 |
'text':this.scale2.labels[this.scale2.labels.length - i - 1],
|
|
|
722 |
'valign':'top',
|
|
|
723 |
'halign':'center',
|
|
|
724 |
'tag': 'scale'
|
|
|
725 |
});
|
|
|
726 |
|
|
|
727 |
// Draw the scale for the right hand side
|
|
|
728 |
RG.Text2(this, {'font':font,
|
|
|
729 |
'size':size,
|
|
|
730 |
'x':this.gutterLeft+ grapharea + prop['chart.gutter.center'] + ((grapharea / this.scale2.labels.length) * (i + 1)),
|
|
|
731 |
'y':ca.height - this.gutterBottom + 3,
|
|
|
732 |
'text':this.scale2.labels[i],
|
|
|
733 |
'valign':'top',
|
|
|
734 |
'halign':'center',
|
|
|
735 |
'tag': 'scale'
|
|
|
736 |
});
|
|
|
737 |
}
|
|
|
738 |
}
|
|
|
739 |
|
|
|
740 |
/**
|
|
|
741 |
* Draw above labels
|
|
|
742 |
*/
|
|
|
743 |
if (prop['chart.labels.above']) {
|
|
|
744 |
|
|
|
745 |
// Draw the left sides above labels
|
|
|
746 |
for (var i=0; i<this.coordsLeft.length; ++i) {
|
|
|
747 |
|
|
|
748 |
if (typeof(this.left[i]) != 'number') {
|
|
|
749 |
continue;
|
|
|
750 |
}
|
|
|
751 |
|
|
|
752 |
var coords = this.coordsLeft[i];
|
|
|
753 |
RG.Text2(this, {'font':font,
|
|
|
754 |
'size':size,
|
|
|
755 |
'x':coords[0] - 5,
|
|
|
756 |
'y':coords[1] + (coords[3] / 2),
|
|
|
757 |
'text':RG.number_format(this, this.left[i], prop['chart.units.pre'], prop['chart.units.post']),
|
|
|
758 |
'valign':'center',
|
|
|
759 |
'halign':'right',
|
|
|
760 |
'tag':'labels.above'
|
|
|
761 |
});
|
|
|
762 |
}
|
|
|
763 |
|
|
|
764 |
// Draw the right sides above labels
|
|
|
765 |
for (i=0; i<this.coordsRight.length; ++i) {
|
|
|
766 |
|
|
|
767 |
if (typeof(this.right[i]) != 'number') {
|
|
|
768 |
continue;
|
|
|
769 |
}
|
|
|
770 |
|
|
|
771 |
var coords = this.coordsRight[i];
|
|
|
772 |
RG.Text2(this, {'font':font,
|
|
|
773 |
'size':size,
|
|
|
774 |
'x':coords[0] + coords[2] + 5,
|
|
|
775 |
'y':coords[1] + (coords[3] / 2),
|
|
|
776 |
'text':RG.number_format(this, this.right[i], prop['chart.units.pre'], prop['chart.units.post']),
|
|
|
777 |
'valign':'center',
|
|
|
778 |
'halign':'left',
|
|
|
779 |
'tag': 'labels.above'
|
|
|
780 |
});
|
|
|
781 |
}
|
|
|
782 |
}
|
|
|
783 |
}
|
|
|
784 |
|
|
|
785 |
|
|
|
786 |
|
|
|
787 |
|
|
|
788 |
/**
|
|
|
789 |
* Draws the titles
|
|
|
790 |
*/
|
|
|
791 |
this.DrawTitles = function ()
|
|
|
792 |
{
|
|
|
793 |
RG.Text2(this, {'font':prop['chart.text.font'],
|
|
|
794 |
'size':prop['chart.text.size'],
|
|
|
795 |
'x':this.gutterLeft + 5,
|
|
|
796 |
'y':this.gutterTop - 5,
|
|
|
797 |
'text':String(prop['chart.title.left']),
|
|
|
798 |
'halign':'left',
|
|
|
799 |
'valign':'bottom',
|
|
|
800 |
'tag': 'title.left'
|
|
|
801 |
});
|
|
|
802 |
|
|
|
803 |
RG.Text2(this, {'font':prop['chart.text.font'],
|
|
|
804 |
'size':prop['chart.text.size'],
|
|
|
805 |
'x': ca.width - this.gutterRight - 5,
|
|
|
806 |
'y':this.gutterTop - 5,
|
|
|
807 |
'text':String(prop['chart.title.right']),
|
|
|
808 |
'halign':'right',
|
|
|
809 |
'valign':'bottom',
|
|
|
810 |
'tag': 'title.right'
|
|
|
811 |
});
|
|
|
812 |
|
|
|
813 |
|
|
|
814 |
|
|
|
815 |
// Draw the main title for the whole chart
|
|
|
816 |
RG.DrawTitle(this, prop['chart.title'], this.gutterTop, null, prop['chart.title.size'] ? prop['chart.title.size'] : null);
|
|
|
817 |
}
|
|
|
818 |
|
|
|
819 |
|
|
|
820 |
|
|
|
821 |
|
|
|
822 |
/**
|
|
|
823 |
* This function is used by MSIE only to manually draw the shadow
|
|
|
824 |
*
|
|
|
825 |
* @param array coords The coords for the bar
|
|
|
826 |
*/
|
|
|
827 |
this.DrawIEShadow = function (coords)
|
|
|
828 |
{
|
|
|
829 |
var prevFillStyle = co.fillStyle;
|
|
|
830 |
var offsetx = prop['chart.shadow.offsetx'];
|
|
|
831 |
var offsety = prop['chart.shadow.offsety'];
|
|
|
832 |
|
|
|
833 |
co.lineWidth = prop['chart.linewidth'];
|
|
|
834 |
co.fillStyle = prop['chart.shadow.color'];
|
|
|
835 |
co.beginPath();
|
|
|
836 |
|
|
|
837 |
// Draw shadow here
|
|
|
838 |
co.fillRect(coords[0] + offsetx, coords[1] + offsety, coords[2],coords[3]);
|
|
|
839 |
|
|
|
840 |
co.fill();
|
|
|
841 |
|
|
|
842 |
// Change the fillstyle back to what it was
|
|
|
843 |
co.fillStyle = prevFillStyle;
|
|
|
844 |
}
|
|
|
845 |
|
|
|
846 |
|
|
|
847 |
|
|
|
848 |
|
|
|
849 |
/**
|
|
|
850 |
* Returns the appropriate focussed bar coordinates
|
|
|
851 |
*
|
|
|
852 |
* @param e object The event object
|
|
|
853 |
*/
|
|
|
854 |
this.getShape =
|
|
|
855 |
this.getBar = function (e)
|
|
|
856 |
{
|
|
|
857 |
var canvas = this.canvas;
|
|
|
858 |
var context = this.context;
|
|
|
859 |
var mouseCoords = RG.getMouseXY(e);
|
|
|
860 |
|
|
|
861 |
/**
|
|
|
862 |
* Loop through the bars determining if the mouse is over a bar
|
|
|
863 |
*/
|
|
|
864 |
for (var i=0; i<this.coords.length; i++) {
|
|
|
865 |
|
|
|
866 |
var mouseX = mouseCoords[0];
|
|
|
867 |
var mouseY = mouseCoords[1];
|
|
|
868 |
var left = this.coords[i][0];
|
|
|
869 |
var top = this.coords[i][1];
|
|
|
870 |
var width = this.coords[i][2];
|
|
|
871 |
var height = this.coords[i][3];
|
|
|
872 |
|
|
|
873 |
if (mouseX >= left && mouseX <= (left + width) && mouseY >= top && mouseY <= (top + height) ) {
|
|
|
874 |
|
|
|
875 |
var tooltip = RG.parseTooltipText(prop['chart.tooltips'], i);
|
|
|
876 |
|
|
|
877 |
return {
|
|
|
878 |
0: this,1: left,2: top,3: width,4: height,5: i,
|
|
|
879 |
'object': this, 'x': left, 'y': top, 'width': width, 'height': height, 'index': i, 'tooltip': tooltip
|
|
|
880 |
};
|
|
|
881 |
}
|
|
|
882 |
}
|
|
|
883 |
|
|
|
884 |
return null;
|
|
|
885 |
}
|
|
|
886 |
|
|
|
887 |
|
|
|
888 |
|
|
|
889 |
|
|
|
890 |
/**
|
|
|
891 |
* Each object type has its own Highlight() function which highlights the appropriate shape
|
|
|
892 |
*
|
|
|
893 |
* @param object shape The shape to highlight
|
|
|
894 |
*/
|
|
|
895 |
this.Highlight = function (shape)
|
|
|
896 |
{
|
|
|
897 |
// Add the new highlight
|
|
|
898 |
RG.Highlight.Rect(this, shape);
|
|
|
899 |
}
|
|
|
900 |
|
|
|
901 |
|
|
|
902 |
|
|
|
903 |
|
|
|
904 |
/**
|
|
|
905 |
* When you click on the canvas, this will return the relevant value (if any)
|
|
|
906 |
*
|
|
|
907 |
* REMEMBER This function will need updating if the Bipolar ever gets chart.ymin
|
|
|
908 |
*
|
|
|
909 |
* @param object e The event object
|
|
|
910 |
*/
|
|
|
911 |
this.getValue = function (e)
|
|
|
912 |
{
|
|
|
913 |
var obj = e.target.__object__;
|
|
|
914 |
var mouseXY = RG.getMouseXY(e);
|
|
|
915 |
var mouseX = mouseXY[0];
|
|
|
916 |
|
|
|
917 |
/**
|
|
|
918 |
* Left hand side
|
|
|
919 |
*/
|
|
|
920 |
if (mouseX > this.gutterLeft && mouseX < ( (ca.width / 2) - (prop['chart.gutter.center'] / 2) )) {
|
|
|
921 |
var value = (mouseX - prop['chart.gutter.left']) / this.axisWidth;
|
|
|
922 |
value = this.max - (value * this.max);
|
|
|
923 |
}
|
|
|
924 |
|
|
|
925 |
/**
|
|
|
926 |
* Right hand side
|
|
|
927 |
*/
|
|
|
928 |
if (mouseX < (ca.width - this.gutterRight) && mouseX > ( (ca.width / 2) + (prop['chart.gutter.center'] / 2) )) {
|
|
|
929 |
var value = (mouseX - prop['chart.gutter.left'] - this.axisWidth - prop['chart.gutter.center']) / this.axisWidth;
|
|
|
930 |
value = (value * this.max);
|
|
|
931 |
}
|
|
|
932 |
|
|
|
933 |
return value;
|
|
|
934 |
}
|
|
|
935 |
|
|
|
936 |
|
|
|
937 |
|
|
|
938 |
|
|
|
939 |
/**
|
|
|
940 |
* The getObjectByXY() worker method. Don't call this call:
|
|
|
941 |
*
|
|
|
942 |
* RGraph.ObjectRegistry.getObjectByXY(e)
|
|
|
943 |
*
|
|
|
944 |
* @param object e The event object
|
|
|
945 |
*/
|
|
|
946 |
this.getObjectByXY = function (e)
|
|
|
947 |
{
|
|
|
948 |
var mouseXY = RG.getMouseXY(e);
|
|
|
949 |
|
|
|
950 |
if (
|
|
|
951 |
mouseXY[0] > prop['chart.gutter.left']
|
|
|
952 |
&& mouseXY[0] < (ca.width - prop['chart.gutter.right'])
|
|
|
953 |
&& mouseXY[1] > prop['chart.gutter.top']
|
|
|
954 |
&& mouseXY[1] < (ca.height - prop['chart.gutter.bottom'])
|
|
|
955 |
) {
|
|
|
956 |
|
|
|
957 |
return this;
|
|
|
958 |
}
|
|
|
959 |
}
|
|
|
960 |
|
|
|
961 |
|
|
|
962 |
|
|
|
963 |
|
|
|
964 |
/**
|
|
|
965 |
* This function positions a tooltip when it is displayed
|
|
|
966 |
*
|
|
|
967 |
* @param obj object The chart object
|
|
|
968 |
* @param int x The X coordinate specified for the tooltip
|
|
|
969 |
* @param int y The Y coordinate specified for the tooltip
|
|
|
970 |
* @param objec tooltip The tooltips DIV element
|
|
|
971 |
*/
|
|
|
972 |
this.positionTooltip = function (obj, x, y, tooltip, idx)
|
|
|
973 |
{
|
|
|
974 |
var coordX = obj.coords[tooltip.__index__][0];
|
|
|
975 |
var coordY = obj.coords[tooltip.__index__][1];
|
|
|
976 |
var coordW = obj.coords[tooltip.__index__][2];
|
|
|
977 |
var coordH = obj.coords[tooltip.__index__][3];
|
|
|
978 |
var canvasXY = RG.getCanvasXY(obj.canvas);
|
|
|
979 |
var gutterLeft = obj.Get('chart.gutter.left');
|
|
|
980 |
var gutterTop = obj.Get('chart.gutter.top');
|
|
|
981 |
var width = tooltip.offsetWidth;
|
|
|
982 |
var height = tooltip.offsetHeight;
|
|
|
983 |
|
|
|
984 |
// Set the top position
|
|
|
985 |
tooltip.style.left = 0;
|
|
|
986 |
tooltip.style.top = canvasXY[1] + coordY - height - 7 + 'px';
|
|
|
987 |
|
|
|
988 |
// By default any overflow is hidden
|
|
|
989 |
tooltip.style.overflow = '';
|
|
|
990 |
|
|
|
991 |
// The arrow
|
|
|
992 |
var img = new Image();
|
|
|
993 |
img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABEAAAAFCAYAAACjKgd3AAAARUlEQVQYV2NkQAN79+797+RkhC4M5+/bd47B2dmZEVkBCgcmgcsgbAaA9GA1BCSBbhAuA/AagmwQPgMIGgIzCD0M0AMMAEFVIAa6UQgcAAAAAElFTkSuQmCC';
|
|
|
994 |
img.style.position = 'absolute';
|
|
|
995 |
img.id = '__rgraph_tooltip_pointer__';
|
|
|
996 |
img.style.top = (tooltip.offsetHeight - 2) + 'px';
|
|
|
997 |
tooltip.appendChild(img);
|
|
|
998 |
|
|
|
999 |
// Reposition the tooltip if at the edges:
|
|
|
1000 |
|
|
|
1001 |
// LEFT edge
|
|
|
1002 |
if ((canvasXY[0] + coordX + (coordW / 2)- (width / 2)) < 0) {
|
|
|
1003 |
tooltip.style.left = (canvasXY[0] + coordX - (width * 0.1)) + (coordW / 2) + 'px';
|
|
|
1004 |
img.style.left = ((width * 0.1) - 8.5) + 'px';
|
|
|
1005 |
|
|
|
1006 |
// RIGHT edge
|
|
|
1007 |
} else if ((canvasXY[0] + coordX + width) > document.body.offsetWidth) {
|
|
|
1008 |
tooltip.style.left = canvasXY[0] + coordX - (width * 0.9) + (coordW / 2) + 'px';
|
|
|
1009 |
img.style.left = ((width * 0.9) - 8.5) + 'px';
|
|
|
1010 |
|
|
|
1011 |
// Default positioning - CENTERED
|
|
|
1012 |
} else {
|
|
|
1013 |
tooltip.style.left = (canvasXY[0] + coordX + (coordW / 2) - (width * 0.5)) + 'px';
|
|
|
1014 |
img.style.left = ((width * 0.5) - 8.5) + 'px';
|
|
|
1015 |
}
|
|
|
1016 |
}
|
|
|
1017 |
|
|
|
1018 |
|
|
|
1019 |
|
|
|
1020 |
|
|
|
1021 |
/**
|
|
|
1022 |
* Redraw the bar so that the shadow is NOT on top
|
|
|
1023 |
*/
|
|
|
1024 |
this.RedrawBars = function ()
|
|
|
1025 |
{
|
|
|
1026 |
var coords = this.coords;
|
|
|
1027 |
var len = coords.length;
|
|
|
1028 |
|
|
|
1029 |
// Reset the sequentail color index
|
|
|
1030 |
this.sequentialColorIndex = 0;
|
|
|
1031 |
|
|
|
1032 |
co.beginPath();
|
|
|
1033 |
|
|
|
1034 |
// Turn off shadow
|
|
|
1035 |
RG.NoShadow(this);
|
|
|
1036 |
|
|
|
1037 |
// Set the stroke color
|
|
|
1038 |
co.strokeStyle = prop['chart.strokestyle'];
|
|
|
1039 |
|
|
|
1040 |
// Set the linewidth
|
|
|
1041 |
co.lineWidth = prop['chart.linewidth'];
|
|
|
1042 |
|
|
|
1043 |
for (var i=0; i<len; ++i) {
|
|
|
1044 |
|
|
|
1045 |
// No redrawing occurs if there is no value
|
|
|
1046 |
if (coords[i][2] > 0) {
|
|
|
1047 |
|
|
|
1048 |
if (prop['chart.colors.sequential']) {
|
|
|
1049 |
co.fillStyle = prop['chart.colors'][this.sequentialColorIndex++];
|
|
|
1050 |
} else {
|
|
|
1051 |
co.fillStyle = prop['chart.colors'][0];
|
|
|
1052 |
}
|
|
|
1053 |
|
|
|
1054 |
// Draw the bar itself
|
|
|
1055 |
co.strokeRect(coords[i][0], coords[i][1], coords[i][2], coords[i][3]);
|
|
|
1056 |
co.fillRect(coords[i][0], coords[i][1], coords[i][2], coords[i][3]);
|
|
|
1057 |
|
|
|
1058 |
} else {
|
|
|
1059 |
|
|
|
1060 |
// Even if there's no redrawing - the color index needs incrementing
|
|
|
1061 |
this.sequentialColorIndex++
|
|
|
1062 |
}
|
|
|
1063 |
}
|
|
|
1064 |
co.stroke();
|
|
|
1065 |
co.fill();
|
|
|
1066 |
}
|
|
|
1067 |
|
|
|
1068 |
|
|
|
1069 |
|
|
|
1070 |
|
|
|
1071 |
/**
|
|
|
1072 |
* Returns the X coords for a value. Returns two coords because there are... two scales.
|
|
|
1073 |
*
|
|
|
1074 |
* @param number value The value to get the coord for
|
|
|
1075 |
*/
|
|
|
1076 |
this.getXCoord = function (value)
|
|
|
1077 |
{
|
|
|
1078 |
if (value > this.max || value < 0) {
|
|
|
1079 |
return null;
|
|
|
1080 |
}
|
|
|
1081 |
|
|
|
1082 |
var ret = [];
|
|
|
1083 |
|
|
|
1084 |
// The offset into the graph area
|
|
|
1085 |
var offset = ((value / this.max) * this.axisWidth);
|
|
|
1086 |
|
|
|
1087 |
// Get the coords (one fo each side)
|
|
|
1088 |
ret[0] = (this.gutterLeft + this.axisWidth) - offset;
|
|
|
1089 |
ret[1] = (ca.width - this.gutterRight - this.axisWidth) + offset;
|
|
|
1090 |
|
|
|
1091 |
return ret;
|
|
|
1092 |
|
|
|
1093 |
}
|
|
|
1094 |
|
|
|
1095 |
|
|
|
1096 |
|
|
|
1097 |
|
|
|
1098 |
/**
|
|
|
1099 |
* This allows for easy specification of gradients
|
|
|
1100 |
*/
|
|
|
1101 |
this.parseColors = function ()
|
|
|
1102 |
{
|
|
|
1103 |
var props = this.properties;
|
|
|
1104 |
var colors = props['chart.colors'];
|
|
|
1105 |
|
|
|
1106 |
for (var i=0; i<colors.length; ++i) {
|
|
|
1107 |
colors[i] = this.parseSingleColorForGradient(colors[i]);
|
|
|
1108 |
}
|
|
|
1109 |
|
|
|
1110 |
props['chart.highlight.stroke'] = this.parseSingleColorForGradient(props['chart.highlight.stroke']);
|
|
|
1111 |
props['chart.highlight.fill'] = this.parseSingleColorForGradient(props['chart.highlight.fill']);
|
|
|
1112 |
props['chart.axis.color'] = this.parseSingleColorForGradient(props['chart.axis.color']);
|
|
|
1113 |
props['chart.strokestyle'] = this.parseSingleColorForGradient(props['chart.strokestyle']);
|
|
|
1114 |
}
|
|
|
1115 |
|
|
|
1116 |
|
|
|
1117 |
|
|
|
1118 |
|
|
|
1119 |
/**
|
|
|
1120 |
* This parses a single color value
|
|
|
1121 |
*/
|
|
|
1122 |
this.parseSingleColorForGradient = function (color)
|
|
|
1123 |
{
|
|
|
1124 |
if (!color || typeof(color) != 'string') {
|
|
|
1125 |
return color;
|
|
|
1126 |
}
|
|
|
1127 |
|
|
|
1128 |
if (color.match(/^gradient\((.*)\)$/i)) {
|
|
|
1129 |
|
|
|
1130 |
var parts = RegExp.$1.split(':');
|
|
|
1131 |
|
|
|
1132 |
// Create the gradient
|
|
|
1133 |
var grad = co.createLinearGradient(prop['chart.gutter.left'],0,ca.width - prop['chart.gutter.right'],0);
|
|
|
1134 |
|
|
|
1135 |
var diff = 1 / (parts.length - 1);
|
|
|
1136 |
|
|
|
1137 |
grad.addColorStop(0, RG.trim(parts[0]));
|
|
|
1138 |
|
|
|
1139 |
for (var j=1; j<parts.length; ++j) {
|
|
|
1140 |
grad.addColorStop(j * diff, RG.trim(parts[j]));
|
|
|
1141 |
}
|
|
|
1142 |
}
|
|
|
1143 |
|
|
|
1144 |
return grad ? grad : color;
|
|
|
1145 |
}
|
|
|
1146 |
|
|
|
1147 |
|
|
|
1148 |
|
|
|
1149 |
|
|
|
1150 |
/**
|
|
|
1151 |
* Objects are now always registered so that when RGraph.Redraw()
|
|
|
1152 |
* is called this chart will be redrawn.
|
|
|
1153 |
*/
|
|
|
1154 |
RG.Register(this);
|
|
|
1155 |
}
|