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File: ia\factories\PieChartFactory.js

  1. /** 
  2.  * Factory for creating pie charts.
  3.  *
  4.  * @author J Clare
  5.  * @class ia.PieChartFactory
  6.  * @param {ia.ComponentConfig} config The component config.
  7.  * @param {ia.Report} report The report object.
  8.  * @param {Object} componentGroup  Hash table containing the Data and  Interaction Groups that the component belongs to:
  9.  * {dataGroup:ia.DataGroup, interactionGroup:ia.InteractionGroup, comparisonInteractionGroup:ia.InteractionGroup}.
  10.  */
  11. ia.PieChartFactory = function(config, report, componentGroup)
  12. {
  13. 	var me = this;
  14.  
  15. 	// Data and Interaction groups that the components belongs to.
  16. 	var interactionGroup = componentGroup.interactionGroup;
  17. 	var dataGroup = componentGroup.dataGroup;
  18. 	var comparisonInteractionGroup = componentGroup.comparisonInteractionGroup;
  19.  
  20. 	// Event handlers.
  21.  
  22. 	// This code executes every time the data groups data has changed.
  23. 	dataGroup.addEventListener(ia.DataEvent.DATA_CHANGED, function(event)
  24. 	{
  25. 		me.update()
  26. 		me.render();
  27. 	});
  28.  
  29. 	// This code executes every time the data groups thematic has changed.
  30. 	// The thematic will change after any data change so only render
  31. 	// here to avoid multiple rendering.
  32. 	dataGroup.addEventListener(ia.Event.THEMATIC_CHANGED, function(event)
  33. 	{
  34. 		me.update()
  35. 		me.render();
  36. 	});
  37.  
  38. 	// Components.
  39.  
  40. 	// Panel.
  41. 	var panel = report.getWidget(config.id); 
  42. 	panel.exportFunction = function() {chart.exportData(report.config.getProperty("saveImageText"));}; 
  43.  
  44. 	// Chart.
  45. 	var chart;
  46. 	var layer;
  47.  
  48. 	/** 
  49. 	 * Builds the component.
  50. 	 *
  51. 	 * @method build
  52.  	 * @param {Function} callbackFunction Called on completion of function, with the component id as the parameter.
  53. 	 */
  54. 	this.build = function(callbackFunction)
  55. 	{
  56. 		// Empty panel.
  57. 		panel.content.empty();
  58. 				
  59. 		// Chart.
  60. 		chart = new ia.PieChart(config.id);
  61. 		panel.append(chart.container);
  62. 		report.addComponent(config.id, chart);
  63.  
  64. 		// Layer.
  65. 		layer = new ia.PieLayer();
  66. 		layer.thematic = dataGroup.thematic;
  67. 		layer.setVisible(true);
  68. 		layer.interactive = true;
  69. 		layer.highlightColor = report.highlightColor;
  70. 		layer.selectionColor = report.selectionColor;
  71. 		chart.addLayer(layer);
  72. 		interactionGroup.addComponent(layer);
  73.  
  74. 		// Wait till charts ready before returning.
  75. 		chart.addEventListener(ia.Event.MAP_READY, function() 
  76. 		{
  77. 			if (callbackFunction !== undefined) callbackFunction.call(null, config.id);
  78. 		});
  79. 	};
  80.  
  81. 	/** 
  82. 	 * Updates the component.
  83. 	 *
  84. 	 * @method update
  85.  	 * @param {Function} callbackFunction Called on completion of function, with the component id as the parameter.
  86. 	 */
  87. 	this.update = function(callbackFunction)
  88. 	{
  89. 		layer.tip = config.getProperty("tip");
  90.  
  91. 		if (callbackFunction !== undefined) callbackFunction.call(null, config.id);
  92. 	};
  93.  
  94. 	/** 
  95. 	 * Renders the component.
  96. 	 *
  97. 	 * @method render
  98.  	 * @param {Function} callbackFunction Called on completion of function, with the component id as the parameter.
  99. 	 */
  100. 	this.render = function(callbackFunction)
  101. 	{
  102. 		if (dataGroup.thematic.numericClassifier.classificationName === ia.Thematic.CONTINUOUS)
  103. 		{
  104. 			// Hide.
  105. 			chart.hide();
  106. 			panel.text(config.getProperty("notAvailableText"));
  107. 		}
  108. 		else
  109. 		{
  110. 			// Show.
  111. 			panel.text("");
  112. 			chart.show();
  113. 			chart.render();
  114. 		}
  115. 		
  116. 		if (callbackFunction !== undefined) callbackFunction.call(null, config.id);
  117. 	};
  118. };
  119.