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Creating a Checkbox

/ Published in: ActionScript 3
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  1. package {
  2.   import flash.display.*;
  3.   import flash.events.*;
  4.   import flash.text.*;
  5.  
  6.   public class CheckBox extends Sprite {
  7.  
  8. 	private var _label:FormattedTextField;
  9. 	private var _icon:CheckBoxIcon;
  10. 	private var _isChecked:Boolean = false;
  11.  
  12. 	public function CheckBox( name:String, value:* ) {
  13.  
  14. 		build( );
  15. 		setupEventListeners( );
  16. 		layout( );
  17. 	}
  18.  
  19.  
  20. 	private function build():void {
  21.  
  22. 		_icon = new CheckBoxIcon( );
  23.  
  24. 		_label = new TextField(  );
  25. 		_label.autoSize = TextFieldAutoSize.LEFT;
  26. 		_label.text = value.label;
  27. 		_label.selectable = false;
  28. 		addChild( _icon );
  29. 		addChild( _label );
  30. 	}
  31.  
  32.  
  33. 	private function layout():void {
  34.  
  35. 		_label.x = _icon.x + _icon.width + 5;
  36. 		_label.y = _icon.x + (_icon.height - _label.height) * 0.5;
  37. 	}
  38.  
  39. 	private function setupEventListeners():void {
  40.  
  41. 		addEventListener( MouseEvent.CLICK , clickListener );
  42. 	}
  43.  
  44. 	public function set selected( pValue:Boolean ):void {
  45. 		_isChecked = pValue;
  46. 	}
  47.  
  48. 	public function get selected():Boolean {
  49. 		return _isChecked;
  50. 	}
  51.  
  52. 	private function clickListener(e:MouseEvent):void {
  53. 		if(selected) 
  54. 		{
  55. 			_icon.uncheck( );
  56. 			selected = false;
  57. 		} 
  58. 		else 
  59. 		{
  60. 			_icon.check( );
  61. 			selected = true;
  62. 		}
  63. 	}
  64. }

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