TrainSignManage/WebFrame/bower_components/chart.js/src/Chart.Bar.js

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(function(){
	"use strict";

	var root = this,
		Chart = root.Chart,
		helpers = Chart.helpers;


	var defaultConfig = {
		//Boolean - Whether the scale should start at zero, or an order of magnitude down from the lowest value
		scaleBeginAtZero : true,

		//Boolean - Whether grid lines are shown across the chart
		scaleShowGridLines : true,

		//String - Colour of the grid lines
		scaleGridLineColor : "rgba(0,0,0,.05)",

		//Number - Width of the grid lines
		scaleGridLineWidth : 1,

		//Boolean - Whether to show horizontal lines (except X axis)
		scaleShowHorizontalLines: true,

		//Boolean - Whether to show vertical lines (except Y axis)
		scaleShowVerticalLines: true,

		//Boolean - If there is a stroke on each bar
		barShowStroke : true,

		//Number - Pixel width of the bar stroke
		barStrokeWidth : 2,

		//Number - Spacing between each of the X value sets
		barValueSpacing : 5,

		//Number - Spacing between data sets within X values
		barDatasetSpacing : 1,

		//String - A legend template
		legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<datasets.length; i++){%><li><span style=\"background-color:<%=datasets[i].fillColor%>\"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>"

	};


	Chart.Type.extend({
		name: "Bar",
		defaults : defaultConfig,
		initialize:  function(data){

			//Expose options as a scope variable here so we can access it in the ScaleClass
			var options = this.options;

			this.ScaleClass = Chart.Scale.extend({
				offsetGridLines : true,
				calculateBarX : function(datasetCount, datasetIndex, barIndex){
					//Reusable method for calculating the xPosition of a given bar based on datasetIndex & width of the bar
					var xWidth = this.calculateBaseWidth(),
						xAbsolute = this.calculateX(barIndex) - (xWidth/2),
						barWidth = this.calculateBarWidth(datasetCount);