1578 lines
45 KiB
JavaScript
1578 lines
45 KiB
JavaScript
'version:2024-12-01 (6.20)';
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//
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// o---------------------------------------------------------------------------------o
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// | This file is part of the RGraph package - you can learn more at: |
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// | |
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// | https://www.rgraph.net/license.html |
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// | |
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// | RGraph is dual-licensed under the Open Source GPL license. That means that it's |
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// | free to use and there are no restrictions on what you can use RGraph for! |
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// | If the GPL license does not suit you however, then there's an inexpensive |
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// | commercial license option available. See the URL above for more details. |
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// o---------------------------------------------------------------------------------o
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RGraph = window.RGraph || {isrgraph:true,isRGraph:true,rgraph:true};
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// The chart constructor. This function sets up the object. It takes the ID (the HTML attribute) of the canvas as the
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// first argument and the data as the second. If you need to change this, you can.
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//
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RGraph.Thermometer = function (conf)
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{
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this.id = conf.id;
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this.canvas = document.getElementById(this.id);
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this.context = this.canvas.getContext ? this.canvas.getContext('2d') : null;
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this.canvas.__object__ = this;
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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.colorsParsed = false;
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this.type = 'thermometer';
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this.isRGraph = true;
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this.isrgraph = true;
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this.rgraph = true;
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this.min = RGraph.stringsToNumbers(conf.min);
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this.max = RGraph.stringsToNumbers(conf.max);
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this.value = RGraph.stringsToNumbers(conf.value);
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this.graphArea = [];
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this.currentValue = null;
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this.coords = [];
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this.coordsText = [];
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this.original_colors = [];
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this.firstDraw = true; // After the first draw this will be false
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this.stopAnimationRequested = false;// Used to control the animations
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this.properties =
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{
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linewidth: 1,
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backgroundColor: 'white',
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colorsStroke: 'black',
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colors: ['red'],
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marginLeft: 35,
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marginRight: 35,
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marginTop: 35,
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marginBottom: 35,
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tickmarksSize: 2,
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tickmarksCount: 10,
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textColor: 'black',
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textFont: 'Arial, Verdana, sans-serif',
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textSize: 12,
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textBold: false,
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textItalic: false,
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textAccessible: false,
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textAccessibleOverflow: 'visible',
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textAccessiblePointerevents:false,
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text: null,
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scaleVisible: false,
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scaleUnitsPre: '',
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scaleUnitsPost: '',
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scaleDecimals: 0,
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scaleThousand: ',',
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scalePoint: '.',
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title: '',
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titleFont: null,
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titleSize: null,
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titleColor: null,
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titleBold: null,
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titleItalic: null,
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titleHalign: null,
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titleValign: null,
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titleOffsetx: 0,
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titleOffsety: 0,
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titleSubtitle: '',
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titleSubtitleSize: null,
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titleSubtitleColor: '#aaa',
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titleSubtitleFont: null,
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titleSubtitleBold: null,
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titleSubtitleItalic: null,
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titleSubtitleOffsetx: 0,
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titleSubtitleOffsety: 0,
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titleSide: '',
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titleSideBold: null,
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titleSideFont: null,
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titleSideSize: null,
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titleSideColor: null,
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titleSideItalic: null,
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titleSideOffsetx: 0,
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titleSideOffsety: 0,
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shadow: true,
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shadowOffsetx: 0,
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shadowOffsety: 0,
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shadowBlur: 15,
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shadowColor: '#ddd',
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resizable: false,
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resizableHandleBackground: null,
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contextmenu: null,
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adjustable: false,
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labelsValue: true,
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labelsValueColor: null,
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labelsValueFont: null,
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labelsValueSize: null,
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labelsValueBold: null,
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labelsValueItalic: null,
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labelsValueDecimals: null,
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labelsValueThousand: null,
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labelsValuePoint: null,
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labelsValueUnitsPre: null,
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labelsValueUnitsPost: null,
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labelsValueOffsetx: 0,
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labelsValueOffsety: 0,
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labelsCount: 5,
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labelsDecimals: null,
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labelsUnitsPre: null,
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labelsUnitsPost: null,
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labelsPoint: null,
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labelsThousand: null,
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labelsColor: null,
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labelsFont: null,
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labelsSize: null,
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labelsBold: null,
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labelsItalic: null,
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labelsOffsetx: 0,
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labelsOffsety: 0,
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annotatable: false,
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annotatableColor: 'black',
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annotatableLinewidth: 1,
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tooltips: null,
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tooltipsHighlight: true,
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tooltipsEffect: 'slide',
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tooltipsEvent: 'click',
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tooltipsCssClass: 'RGraph_tooltip',
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tooltipsCss: null,
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tooltipsPersistent: false,
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tooltipsFormattedThousand: ',',
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tooltipsFormattedPoint: '.',
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tooltipsFormattedDecimals: 0,
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tooltipsFormattedUnitsPre: '',
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tooltipsFormattedUnitsPost: '',
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tooltipsFormattedKeyColors: null,
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tooltipsFormattedKeyColorsShape: 'square',
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tooltipsFormattedKeyLabels: [],
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tooltipsFormattedListType: 'ul',
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tooltipsFormattedListItems: null,
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tooltipsFormattedTableHeaders: null,
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tooltipsFormattedTableData: null,
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tooltipsPointer: true,
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tooltipsPointerOffsetx: 0,
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tooltipsPointerOffsety: 0,
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tooltipsPositionStatic: true,
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tooltipsHotspotIgnore: null,
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highlightStroke: 'rgba(0,0,0,0)',
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highlightFill: 'rgba(255,255,255,0.7)',
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clearto: 'rgba(0,0,0,0)',
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bulbBottomRadiusAdjust: 0,
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bulbBottomRadius: null
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}
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//
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// Add the reverse look-up table for property names
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// so that property names can be specified in any case.
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//
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this.properties_lowercase_map = [];
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for (var i in this.properties) {
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if (typeof i === 'string') {
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this.properties_lowercase_map[i.toLowerCase()] = i;
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}
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}
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//
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// A simple check that the browser has canvas support
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//
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if (!this.canvas) {
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alert('[THERMOMETER] No canvas support');
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return;
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}
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//
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// The thermometer can only have one data point so only this.$0 needs to be created
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//
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this.$0 = {};
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// Easy access to properties and the path function
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var properties = this.properties;
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this.path = RGraph.pathObjectFunction;
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//
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// "Decorate" the object with the generic effects if the effects library has been included
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//
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if (RGraph.Effects && typeof RGraph.Effects.decorate === 'function') {
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RGraph.Effects.decorate(this);
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}
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// Add the responsive method. This method resides in the common file.
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this.responsive = RGraph.responsive;
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//
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// A setter.
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this.set = function (name)
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{
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var value = typeof arguments[1] === 'undefined' ? null : arguments[1];
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// Go through all of the properties and make sure
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// that they're using the correct capitalisation
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if (typeof name === 'string') {
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name = this.properties_lowercase_map[name.toLowerCase()] || name;
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}
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// Set the colorsParsed flag to false if the colors
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// property is being set
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if (name === 'colors') {
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this.colorsParsed = false;
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}
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// the number of arguments is only one and it's an
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// object - parse it for configuration data and return.
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if (arguments.length === 1 && typeof arguments[0] === 'object') {
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for (i in arguments[0]) {
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if (typeof i === 'string') {
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this.set(i, arguments[0][i]);
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}
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}
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return this;
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}
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properties[name] = value;
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return this;
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};
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//
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// A getter.
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//
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// @param name string The name of the property to get
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//
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this.get = function (name)
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{
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// Go through all of the properties and make sure
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// that they're using the correct capitalisation
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name = this.properties_lowercase_map[name.toLowerCase()] || name;
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return properties[name];
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};
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//
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// Draws the thermometer
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//
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this.draw = function ()
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{
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// Fire the custom RGraph onbeforedraw event (which should be fired before the chart is drawn)
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RGraph.fireCustomEvent(this, 'onbeforedraw');
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// Translate half a pixel for antialiasing purposes - but only if it hasn't been
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// done already
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//
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// MUST be the first thing done!
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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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// Max/min boundary constraints
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this.value = Math.min(this.max, this.value);
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this.value = Math.max(this.min, this.value);
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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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// Set the current value
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//
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this.currentValue = this.value;
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//
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// Stop this growing uncontrollably
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//
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this.coordsText = [];
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//
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// Make the margins easy to access
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//
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this.marginLeft = properties.marginLeft;
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this.marginRight = properties.marginRight;
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this.marginTop = properties.marginTop;
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this.marginBottom = properties.marginBottom;
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// Get the scale
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this.scale2 = RGraph.getScale({object: this, options: {
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'scale.max': this.max,
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'scale.min': this.min,
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'scale.strict': true,
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'scale.thousand': properties.scaleThousand,
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'scale.point': properties.scalePoint,
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'scale.decimals': properties.scaleDecimals,
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'ylabels.count': properties.labelsCount,
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'scale.round': properties.scaleRound,
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'scale.units.pre': properties.scaleUnitsPre,
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'scale.units.post': properties.scaleUnitsPost
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}});
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// Work out the coordinates and positions
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this.x = this.marginLeft;
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this.width = this.canvas.width - this.marginLeft - this.marginRight;
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this.y = this.marginTop + (this.width / 2);
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this.halfWidth = this.width / 2;
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this.bulbTopCenterx = this.marginLeft + (this.width / 2);
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this.bulbTopCentery = this.marginTop + (this.width / 2);
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this.bulbTopRadius = this.width / 2;
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this.bulbBottomCenterx = this.marginLeft + (this.width / 2);
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this.bulbBottomRadius = typeof properties.bulbBottomRadius === 'number' ? properties.bulbBottomRadius : this.width * 0.75 + properties.bulbBottomRadiusAdjust;
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this.bulbBottomCentery = this.canvas.height - this.marginBottom - this.bulbBottomRadius;
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this.scaleTopY = this.bulbTopCentery;
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this.scaleBottomY = this.bulbBottomCentery - this.bulbBottomRadius;
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this.scaleHeight = this.scaleBottomY - this.scaleTopY;
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this.height = this.getYCoord(this.min) - this.getYCoord(this.value);
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this.coords[0] = [
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this.x,
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this.getYCoord(this.value),
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this.width,
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this.height
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];
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//
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// Install clipping
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//
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// MUST be the first thing that's done after the
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// beforedraw event
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//
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if (!RGraph.isNullish(this.properties.clip)) {
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RGraph.clipTo.start(this, this.properties.clip);
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}
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// Draw the background
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this.drawBackground();
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// Draw the bar that represents the value
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this.drawBar();
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// Draw the tickmarks
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this.drawTickMarks();
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//
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// Draw the label
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//
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this.drawLabels();
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//
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// Draw the title
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//
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if (properties.title) {
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this.drawTitle();
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}
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//
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// Draw the side title
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//
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if (properties.titleSide) {
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this.drawSideTitle();
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}
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//
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// Setup the context menu if required
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//
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if (properties.contextmenu) {
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RGraph.showContext(this);
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}
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//
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// Add custom text thats specified
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//
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RGraph.addCustomText(this);
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//
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// This installs the event listeners
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//
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RGraph.installEventListeners(this);
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//
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// End clipping
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//
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if (!RGraph.isNullish(this.properties.clip)) {
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RGraph.clipTo.end();
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}
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//
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// Fire the onfirstdraw event
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//
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if (this.firstDraw) {
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this.firstDraw = false;
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RGraph.fireCustomEvent(this, 'onfirstdraw');
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this.firstDrawFunc();
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}
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//
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// Fire the custom RGraph draw event (which should be fired when you have drawn the chart)
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//
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RGraph.fireCustomEvent(this, 'ondraw');
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//
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// Install any inline responsive configuration. This
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// should be last in the draw function - even after
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// the draw events.
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//
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RGraph.installInlineResponsive(this);
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return this;
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};
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//
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// Draws the thermometer
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//
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this.drawBackground = function ()
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{
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if (properties.shadow) {
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RGraph.setShadow(
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this,
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properties.shadowColor,
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properties.shadowOffsetx,
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properties.shadowOffsety,
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properties.shadowBlur
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);
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}
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// Draw the outline and background
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this.pathBackground();
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this.context.strokeStyle = properties.colorsStroke;
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this.context.fillStyle = properties.backgroundColor;
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this.context.lineWidth = 1 + properties.linewidth;
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this.context.stroke();
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this.context.fill();
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this.context.lineWidth = 1;
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};
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//
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// This draws the bar that indicates the value of the thermometer. It makes use
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// of the .pathBar() function.
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//
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this.drawBar = function ()
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{
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this.pathBar();
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this.path('f %', properties.colors[0]);
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};
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//
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// This function draws the path that indicates the specified value. It
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// doesn't stroke or fill the path.
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//
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this.pathBar = function ()
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{
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var barHeight = this.coords[0][3],
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y = (this.coords[0][1] + this.coords[0][3]) - barHeight
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RGraph.noShadow(this);
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// Draw the bar that indicates the value
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this.path(
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'b ss transparent r % % % % m % % a % % % 0 6.28 false',
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this.coords[0][0], y, this.coords[0][2], this.bulbBottomCentery - y,
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this.bulbBottomCenterx + this.bulbBottomRadius, this.bulbBottomCentery,
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this.bulbBottomCenterx, this.bulbBottomCentery, this.bulbBottomRadius
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);
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};
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//
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// This function draws the path that indicates that encompasses the
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// background. It's used by the overChartArea() function.
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//
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this.pathBackground = function ()
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{
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this.path(
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'b r % % % % a % % % 3.1415927 6.28 false m % % a % % % 0 6.2830 false c',
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this.x,this.scaleTopY,this.coords[0][2],this.bulbBottomCentery - this.scaleTopY,
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this.bulbTopCenterx,this.bulbTopCentery,this.bulbTopRadius,
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this.bulbBottomCenterx,this.bulbBottomCentery,
|
|
this.bulbBottomCenterx,this.bulbBottomCentery,this.bulbBottomRadius
|
|
);
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Draws the tickmarks of the thermometer
|
|
//
|
|
this.drawTickMarks = function ()
|
|
{
|
|
if (properties.tickmarksCount) {
|
|
|
|
var ticksize = properties.tickmarksSize;
|
|
|
|
this.context.strokeStyle = properties.colorsStroke;
|
|
this.context.lineWidth = properties.linewidth / 2;
|
|
|
|
// Left hand side tickmarks
|
|
this.context.beginPath();
|
|
for (var i=0; i<=properties.tickmarksCount; ++i) {
|
|
|
|
var y = this.scaleBottomY - ((this.scaleHeight / properties.tickmarksCount) * i);
|
|
|
|
this.context.moveTo(this.marginLeft, Math.round(y));
|
|
this.context.lineTo(this.marginLeft + ticksize, Math.round(y));
|
|
|
|
// Right hand side tickmarks
|
|
this.context.moveTo(this.canvas.width - this.marginRight, Math.round(y));
|
|
this.context.lineTo(this.canvas.width - this.marginRight - ticksize, Math.round(y));
|
|
}
|
|
this.context.stroke();
|
|
|
|
this.context.lineWidth = 1;
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Draws the labels of the thermometer. Now (4th August 2011) draws
|
|
// the scale too
|
|
//
|
|
this.drawLabels = function ()
|
|
{
|
|
//
|
|
// This draws draws the label that sits at the top of the chart
|
|
//
|
|
if (properties.labelsValue) {
|
|
|
|
// Weird...
|
|
var text = properties.scaleVisible ?
|
|
RGraph.numberFormat({
|
|
object: this,
|
|
number: this.value.toFixed(typeof properties.labelsValueDecimals === 'number' ? properties.labelsValueDecimals : properties.scaleDecimals),
|
|
unitspre: typeof properties.labelsValueUnitsPre === 'string' ? properties.labelsValueUnitsPre : properties.scaleUnitsPre,
|
|
unitspost: typeof properties.labelsValueUnitsPost === 'string' ? properties.labelsValueUnitsPost : properties.scaleUnitsPost,
|
|
point: typeof properties.labelsValuePoint === 'string' ? properties.labelsValuePoint : properties.scalePoint,
|
|
thousand: typeof properties.labelsValueThousand === 'string' ? properties.labelsValueThousand : properties.scaleThousand
|
|
})
|
|
:
|
|
RGraph.numberFormat({
|
|
object: this,
|
|
number: this.value.toFixed(typeof properties.labelsValueDecimals === 'number' ? properties.labelsValueDecimals : properties.scaleDecimals),
|
|
unitspre: typeof properties.labelsValueUnitsPre === 'string' ? properties.labelsValueUnitsPre : properties.scaleUnitsPre,
|
|
unitspost: typeof properties.labelsValueUnitsPost === 'string' ? properties.labelsValueUnitsPost : properties.scaleUnitsPost,
|
|
point: typeof properties.labelsValuePoint === 'string' ? properties.labelsValuePoint : properties.scalePoint,
|
|
thousand: typeof properties.labelsValueThousand === 'string' ? properties.labelsValueThousand : properties.scaleThousand
|
|
});
|
|
|
|
var textConf = RGraph.getTextConf({
|
|
object: this,
|
|
prefix: 'labelsValue'
|
|
});
|
|
|
|
RGraph.text({
|
|
|
|
object: this,
|
|
|
|
font: textConf.font,
|
|
size: textConf.size,
|
|
color: textConf.color,
|
|
bold: textConf.bold,
|
|
italic: textConf.italic,
|
|
|
|
x: this.coords[0][0] + (this.coords[0][2] / 2) + properties.labelsValueOffsetx,
|
|
y: this.coords[0][1] + 7 + properties.labelsValueOffsety,
|
|
|
|
text: text,
|
|
|
|
valign: 'top',
|
|
halign: 'center',
|
|
|
|
bounding: true,
|
|
boundingFill:'white',
|
|
|
|
tag: 'labels.value'
|
|
});
|
|
}
|
|
|
|
|
|
//
|
|
// Draw the scale if requested
|
|
//
|
|
if (properties.scaleVisible) {
|
|
this.drawScale();
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Draws the title
|
|
//
|
|
this.drawTitle = function ()
|
|
{
|
|
RGraph.drawTitle(this);
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Draws the title
|
|
//
|
|
this.drawSideTitle = function ()
|
|
{
|
|
var textConf = RGraph.getTextConf({
|
|
object: this,
|
|
prefix: 'titleSide'
|
|
});
|
|
|
|
var x = this.marginLeft - 3;
|
|
var y = (this.scaleHeight / 2) + this.marginTop + this.bulbTopRadius;
|
|
|
|
// Add any use specified offset
|
|
if (typeof properties.titleSideOffsetx === 'number') x += properties.titleSideOffsetx;
|
|
if (typeof properties.titleSideOffsety === 'number') y += properties.titleSideOffsety;
|
|
|
|
this.context.fillStyle = properties.textColor;
|
|
RGraph.text({
|
|
|
|
object: this,
|
|
|
|
font: textConf.font,
|
|
size: textConf.size,
|
|
color: textConf.color,
|
|
bold: textConf.bold,
|
|
italic: textConf.italic,
|
|
|
|
x: x,
|
|
y: y,
|
|
|
|
text: String(properties.titleSide),
|
|
|
|
valign: 'bottom',
|
|
halign: 'center',
|
|
|
|
angle: 270,
|
|
tag: 'title.side',
|
|
accessible: false
|
|
});
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Draw the scale if requested
|
|
//
|
|
this.drawScale = function ()
|
|
{
|
|
this.context.fillStyle = properties.textColor;
|
|
|
|
var units_pre = properties.scaleUnitsPre,
|
|
units_post = properties.scaleUnitsPost,
|
|
decimals = typeof properties.labelsDecimals === 'number' ? properties.labelsDecimals : properties.scaleDecimals,
|
|
numLabels = properties.labelsCount,
|
|
step = (this.max - this.min) / numLabels;
|
|
|
|
for (var i=1; i<=numLabels; ++i) {
|
|
|
|
var x = this.canvas.width - this.marginRight + (properties.linewidth / 2),
|
|
y = this.canvas.height - this.marginBottom - (2 * this.bulbBottomRadius) - ((this.scaleHeight / numLabels) * i),
|
|
text = RGraph.numberFormat({
|
|
object: this,
|
|
number: String((this.min + (i * step)).toFixed(decimals)),
|
|
unitspre: typeof properties.labelsUnitsPre === 'string' ? properties.labelsUnitsPre : properties.scaleUnitsPre,
|
|
unitspost: typeof properties.labelsUnitsPost === 'string' ? properties.labelsUnitsPost : properties.scaleUnitsPost,
|
|
point: typeof properties.labelsPoint === 'string' ? properties.labelsPoint : properties.scalePoint,
|
|
thousand: typeof properties.labelsThousand === 'string' ? properties.labelsThousand : properties.scaleThousand
|
|
});
|
|
|
|
var textConf = RGraph.getTextConf({
|
|
object: this,
|
|
prefix: 'labels'
|
|
});
|
|
|
|
RGraph.text({
|
|
|
|
object: this,
|
|
|
|
font: textConf.font,
|
|
size: textConf.size,
|
|
color: textConf.color,
|
|
bold: textConf.bold,
|
|
italic: textConf.italic,
|
|
|
|
x: x + 5 + properties.labelsOffsetx,
|
|
y: y + properties.labelsOffsety,
|
|
|
|
text: text,
|
|
valign: 'center',
|
|
tag: 'scale'
|
|
});
|
|
}
|
|
|
|
// Draw zero
|
|
RGraph.text({
|
|
|
|
object: this,
|
|
|
|
font: textConf.font,
|
|
size: textConf.size,
|
|
color: textConf.color,
|
|
bold: textConf.bold,
|
|
italic: textConf.italic,
|
|
|
|
x: x + 6 + properties.labelsOffsetx,
|
|
y: this.bulbBottomCentery - this.bulbBottomRadius + properties.labelsOffsety,
|
|
text: RGraph.numberFormat({
|
|
object: this,
|
|
number: this.min.toFixed(decimals),
|
|
unitspre: typeof properties.labelsUnitsPre === 'string' ? properties.labelsUnitsPre : properties.scaleUnitsPre,
|
|
unitspost: typeof properties.labelsUnitsPost === 'string' ? properties.labelsUnitsPost : properties.scaleUnitsPost,
|
|
point: typeof properties.labelsPoint === 'string' ? properties.labelsPoint : properties.scalePoint,
|
|
thousand: typeof properties.labelsThousand === 'string' ? properties.labelsThousand : properties.scaleThousand
|
|
}),
|
|
valign: 'center',
|
|
tag: 'scale'
|
|
});
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Returns the focused/clicked bar
|
|
//
|
|
// @param event e The event object
|
|
//
|
|
this.getShape = function (e)
|
|
{
|
|
var mouseXY = RGraph.getMouseXY(e),
|
|
mouseX = mouseXY[0],
|
|
mouseY = mouseXY[1];
|
|
|
|
for (var i=0; i<this.coords.length; i++) {
|
|
|
|
if (RGraph.tooltipsHotspotIgnore(this, i)) {
|
|
continue;
|
|
}
|
|
|
|
var coords = this.coords[i],
|
|
left = coords[0],
|
|
top = coords[1],
|
|
width = coords[2],
|
|
height = coords[3];
|
|
|
|
this.pathBar();
|
|
|
|
if (
|
|
this.context.isPointInPath(mouseX, mouseY)
|
|
&& (this.properties.clip ? RGraph.clipTo.test(this, mouseX, mouseY) : true)
|
|
) {
|
|
|
|
var tooltip = RGraph.parseTooltipText ? RGraph.parseTooltipText(properties.tooltips, i) : '';
|
|
|
|
return {
|
|
object: this,
|
|
x: left,
|
|
y: top,
|
|
width: width,
|
|
height: height,
|
|
index: 0,
|
|
dataset: 0,
|
|
sequentialIndex: 0,
|
|
tooltip: typeof tooltip === 'string' ? tooltip : null
|
|
};
|
|
}
|
|
}
|
|
|
|
return null;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// This function returns the value that the mouse is positioned t, regardless of
|
|
// the actual indicated value.
|
|
//
|
|
// @param object e The event object (or it can also be an two element array containing the X/Y coords)
|
|
//
|
|
this.getValue = function (arg)
|
|
{
|
|
if (arg.length === 2) {
|
|
var mouseX = arg[0],
|
|
mouseY = arg[1];
|
|
} else {
|
|
var mouseXY = RGraph.getMouseXY(arg),
|
|
mouseX = mouseXY[0],
|
|
mouseY = mouseXY[1];
|
|
}
|
|
|
|
var value = (this.scaleHeight - (mouseY - this.scaleTopY)) / this.scaleHeight;
|
|
value *= (this.max - this.min);
|
|
value += this.min;
|
|
|
|
value = Math.max(value, this.min);
|
|
value = Math.min(value, this.max);
|
|
|
|
return value;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Each object type has its own Highlight() function which highlights the appropriate shape
|
|
//
|
|
// @param object shape The shape to highlight
|
|
//
|
|
this.highlight = function (shape)
|
|
{
|
|
if (properties.tooltipsHighlight) {
|
|
|
|
if (typeof properties.highlightStyle === 'function') {
|
|
(properties.highlightStyle)(shape);
|
|
return;
|
|
}
|
|
|
|
this.pathBar();
|
|
|
|
this.path(
|
|
's % f %',
|
|
properties.highlightStroke, properties.highlightFill
|
|
);
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// The getObjectByXY() worker method. Don't call this - call:
|
|
//
|
|
// RGraph.ObjectRegistry.getObjectByXY(e)
|
|
//
|
|
// @param object e The event object
|
|
//
|
|
this.getObjectByXY = function (e)
|
|
{
|
|
var mouseXY = RGraph.getMouseXY(e),
|
|
mouseX = mouseXY[0],
|
|
mouseY = mouseXY[1]
|
|
|
|
// Draw the background shape (don't stroke or fill it)
|
|
this.pathBackground();
|
|
|
|
if (this.context.isPointInPath(mouseX, mouseY)) {
|
|
return this;
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// This method handles the adjusting calculation for when the mouse is moved
|
|
//
|
|
// @param object e The event object
|
|
//
|
|
this.adjusting_mousemove = function (e)
|
|
{
|
|
//
|
|
// Handle adjusting for the Thermometer
|
|
//
|
|
if (properties.adjustable && RGraph.Registry.get('adjusting') && RGraph.Registry.get('adjusting').uid == this.uid) {
|
|
|
|
var mouseXY = RGraph.getMouseXY(e),
|
|
value = this.getValue(e);
|
|
|
|
if (typeof value == 'number') {
|
|
|
|
// Fire the onadjust event
|
|
RGraph.fireCustomEvent(this, 'onadjust');
|
|
|
|
this.value = Number(value.toFixed(properties.scaleDecimals));
|
|
|
|
RGraph.redrawCanvas(this.canvas);
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Returns the appropriate Y coord for a value
|
|
//
|
|
// @param number value The value to return the coord for
|
|
//
|
|
this.getYCoord = function (value)
|
|
{
|
|
if (value > this.max || value < this.min) {
|
|
return null;
|
|
}
|
|
|
|
var y = Math.abs(value - this.min) / Math.abs(this.max - this.min)
|
|
y = y * (this.scaleBottomY - this.scaleTopY);
|
|
|
|
|
|
return this.scaleBottomY - y;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// This returns true/false as to whether the cursor is over the chart area.
|
|
// The cursor does not necessarily have to be over the bar itself.
|
|
//
|
|
this.overChartArea = function (e)
|
|
{
|
|
var mouseXY = RGraph.getMouseXY(e),
|
|
mouseX = mouseXY[0],
|
|
mouseY = mouseXY[1];
|
|
|
|
this.pathBackground();
|
|
|
|
return this.context.isPointInPath(mouseX, mouseY);
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// This allows for easy specification of gradients
|
|
//
|
|
this.parseColors = function ()
|
|
{
|
|
// Save the original colors so that they can be restored when the canvas is reset
|
|
if (this.original_colors.length === 0) {
|
|
this.original_colors.colors = RGraph.arrayClone(properties.colors);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
var colors = properties.colors;
|
|
|
|
for (var i=0; i<colors.length; ++i) {
|
|
colors[i] = this.parseSingleColorForGradient(colors[i]);
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Use this function to reset the object to the post-constructor state. Eg reset colors if
|
|
// need be etc
|
|
//
|
|
this.reset = function ()
|
|
{
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// This parses a single color value
|
|
//
|
|
this.parseSingleColorForGradient = function (color)
|
|
{
|
|
if (!color) {
|
|
return color;
|
|
}
|
|
|
|
if (typeof color === 'string' && color.match(/^gradient\((.*)\)$/i)) {
|
|
|
|
// Allow for JSON gradients
|
|
if (color.match(/^gradient\(({.*})\)$/i)) {
|
|
return RGraph.parseJSONGradient({
|
|
object: this,
|
|
def: RegExp.$1
|
|
});
|
|
}
|
|
|
|
var parts = RegExp.$1.split(':');
|
|
|
|
// Create the gradient
|
|
var grad = this.context.createLinearGradient(
|
|
properties.marginLeft,
|
|
0,
|
|
this.canvas.width - properties.marginRight,
|
|
0
|
|
);
|
|
|
|
var diff = 1 / (parts.length - 1);
|
|
|
|
grad.addColorStop(0, RGraph.trim(parts[0]));
|
|
|
|
for (var j=1; j<parts.length; ++j) {
|
|
grad.addColorStop(j * diff, RGraph.trim(parts[j]));
|
|
}
|
|
}
|
|
|
|
return grad ? grad : color;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Using a function to add events makes it easier to facilitate method chaining
|
|
//
|
|
// @param string type The type of even to add
|
|
// @param function func
|
|
//
|
|
this.on = function (type, func)
|
|
{
|
|
if (type.substr(0,2) !== 'on') {
|
|
type = 'on' + type;
|
|
}
|
|
|
|
if (typeof this[type] !== 'function') {
|
|
this[type] = func;
|
|
} else {
|
|
RGraph.addCustomEventListener(this, type, func);
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Used in chaining. Runs a function there and then - not waiting for
|
|
// the events to fire (eg the onbeforedraw event)
|
|
//
|
|
// @param function func The function to execute
|
|
//
|
|
this.exec = function (func)
|
|
{
|
|
func(this);
|
|
|
|
return this;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// This function runs once only
|
|
// (put at the end of the file (before any effects))
|
|
//
|
|
this.firstDrawFunc = function ()
|
|
{
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Gauge Grow
|
|
//
|
|
// This effect gradually increases the represented value
|
|
//
|
|
// @param object obj The chart object
|
|
// @param Not used - pass null
|
|
// @param function An optional callback function
|
|
//
|
|
this.grow = function ()
|
|
{
|
|
// Cancel any stop request if one is pending
|
|
this.cancelStopAnimation();
|
|
|
|
var obj = this,
|
|
callback = arguments[1] || function () {},
|
|
opt = arguments[0] || {},
|
|
frames = opt.frames ? opt.frames : 30,
|
|
origValue = Number(obj.currentValue),
|
|
newValue = obj.value;
|
|
|
|
newValue = Math.min(newValue, this.max);
|
|
newValue = Math.max(newValue, this.min);
|
|
|
|
var diff = newValue - origValue,
|
|
step = (diff / frames),
|
|
frame = 0;
|
|
|
|
|
|
function iterate ()
|
|
{
|
|
if (obj.stopAnimationRequested) {
|
|
|
|
// Reset the flag
|
|
obj.stopAnimationRequested = false;
|
|
|
|
return;
|
|
}
|
|
|
|
// Set the new value
|
|
obj.value = (step * frame) + origValue;
|
|
|
|
RGraph.clear(obj.canvas);
|
|
RGraph.redrawCanvas(obj.canvas);
|
|
|
|
if (frame < frames) {
|
|
frame++;
|
|
RGraph.Effects.updateCanvas(iterate);
|
|
} else {
|
|
callback(obj);
|
|
}
|
|
}
|
|
|
|
iterate();
|
|
|
|
return this;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Couple of functions that allow you to control the
|
|
// animation effect
|
|
//
|
|
this.stopAnimation = function ()
|
|
{
|
|
this.stopAnimationRequested = true;
|
|
};
|
|
|
|
this.cancelStopAnimation = function ()
|
|
{
|
|
this.stopAnimationRequested = false;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// A worker function that handles Bar chart specific tooltip substitutions
|
|
//
|
|
this.tooltipSubstitutions = function (opt)
|
|
{
|
|
return {
|
|
index: 0,
|
|
dataset: 0,
|
|
sequentialIndex: 0,
|
|
value: this.value,
|
|
values: [this.value]
|
|
};
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// A worker function that returns the correct color/label/value
|
|
//
|
|
// @param object specific The indexes that are applicable
|
|
// @param number index The appropriate index
|
|
//
|
|
this.tooltipsFormattedCustom = function (specific, index)
|
|
{
|
|
var color = (properties.tooltipsFormattedKeyColors && properties.tooltipsFormattedKeyColors[0]) ? properties.tooltipsFormattedKeyColors[0] : properties.colors[0];
|
|
var label = (properties.tooltipsFormattedKeyLabels && properties.tooltipsFormattedKeyLabels[0]) ? properties.tooltipsFormattedKeyLabels[0] : '';
|
|
|
|
return {
|
|
label: label,
|
|
color: color
|
|
};
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// This allows for static tooltip positioning
|
|
//
|
|
this.positionTooltipStatic = function (args)
|
|
{
|
|
var obj = args.object,
|
|
e = args.event,
|
|
tooltip = args.tooltip,
|
|
index = args.index,
|
|
canvasXY = RGraph.getCanvasXY(obj.canvas)
|
|
coords = this.coords[args.index];
|
|
|
|
// Position the tooltip in the X direction
|
|
args.tooltip.style.left = (
|
|
canvasXY[0] // The X coordinate of the canvas
|
|
+ coords[0] // The X coordinate of the point on the chart
|
|
+ (coords[2] / 2) // Add half of the width of the bar
|
|
- (tooltip.offsetWidth / 2) // Subtract half of the tooltip width
|
|
+ obj.properties.tooltipsOffsetx // Add any user defined offset
|
|
) + 'px';
|
|
|
|
args.tooltip.style.top = (
|
|
canvasXY[1] // The Y coordinate of the canvas
|
|
+ coords[1] // The Y coordinate of the bar on the chart
|
|
- tooltip.offsetHeight // The height of the tooltip
|
|
- 10 // An arbitrary amount
|
|
+ obj.properties.tooltipsOffsety // Add any user defined offset
|
|
) + 'px';
|
|
|
|
// If the top of the tooltip is off the top of the page
|
|
// then move the tooltip down
|
|
if(parseFloat(args.tooltip.style.top) < 0) {
|
|
args.tooltip.style.top = parseFloat(args.tooltip.style.top) + (coords[3] / 2) + 5 + 'px';
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// This function handles clipping to scale values. Because
|
|
// each chart handles scales differently, a worker function
|
|
// is needed instead of it all being done centrally in the
|
|
// RGraph.clipTo.start() function.
|
|
//
|
|
// @param string clip The clip string as supplied by the
|
|
// user in the chart configuration
|
|
//
|
|
this.clipToScaleWorker = function (clip)
|
|
{
|
|
// The Regular expression is actually done by the
|
|
// calling RGraph.clipTo.start() function in the core
|
|
// library
|
|
if (RegExp.$1 === 'min') from = this.min; else from = Number(RegExp.$1);
|
|
if (RegExp.$2 === 'max') to = this.max; else to = Number(RegExp.$2);
|
|
|
|
var y1 = this.getYCoord(from),
|
|
y2 = this.getYCoord(to);
|
|
|
|
// Change the angle if the number is "min"
|
|
if (RegExp.$1 === 'min') {
|
|
y1 = this.canvas.height;
|
|
}
|
|
|
|
// Change the angle if the number is "max"
|
|
if (RegExp.$2 === 'max') {
|
|
y2 = 0;
|
|
}
|
|
|
|
this.path(
|
|
'sa b r % % % % cl',
|
|
0,y2,this.canvas.width, Math.max(y1, y2) - Math.min(y1, y2)
|
|
);
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// This function handles TESTING clipping to scale values.
|
|
// Because each chart handles scales differently, a worker
|
|
// function is needed instead of it all being done centrally
|
|
// in the RGraph.clipTo.start() function.
|
|
//
|
|
// @param string clip The clip string as supplied by the
|
|
// user in the chart configuration
|
|
//
|
|
this.clipToScaleTestWorker = function (clip)
|
|
{
|
|
// The Regular expression is actually done by the
|
|
// calling RGraph.clipTo.start() function in the core
|
|
// library
|
|
if (RegExp.$1 === 'min') from = this.min; else from = Number(RegExp.$1);
|
|
if (RegExp.$2 === 'max') to = this.max; else to = Number(RegExp.$2);
|
|
|
|
var y1 = this.getYCoord(from),
|
|
y2 = this.getYCoord(to);
|
|
|
|
// Change the angle if the number is "min"
|
|
if (RegExp.$1 === 'min') {
|
|
y1 = this.canvas.height;
|
|
}
|
|
|
|
// Change the angle if the number is "max"
|
|
if (RegExp.$2 === 'max') {
|
|
y2 = 0;
|
|
}
|
|
|
|
this.path(
|
|
'b r % % % %',
|
|
0,y2,this.canvas.width, Math.max(y1, y2) - Math.min(y1, y2)
|
|
);
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Now, because canvases can support multiple charts, canvases must always be registered
|
|
//
|
|
RGraph.register(this);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// This is the 'end' of the constructor so if the first argument
|
|
// contains configuration data - handle that.
|
|
//
|
|
RGraph.parseObjectStyleConfig(this, conf.options);
|
|
}; |