ButtonBase.as | searchcode

/controls/ButtonBase.as

http://flash-games.googlecode.com/
ActionScript | 357 lines | 216 code | 34 blank | 107 comment | 29 complexity | ead128323269f2da6f8cd6028c1fa703 MD5 | raw file

package slw.controls

{

	import flash.display.DisplayObject;

	import flash.display.GradientType;

	import flash.display.MovieClip;

	import flash.display.Shape;

	import flash.display.Sprite;

	import flash.events.MouseEvent;

	import flash.geom.Matrix;

	

	import slw.core.UIComponent;

	import slw.events.LoaderEvent;

	

	

	/**

	 * ButtonBase

	 * ???????????4??????4???????4????url??

	 * @author ddx<br/>

	 * 2011-7-21

	 *

	 */

	public class ButtonBase extends UIComponent

	{

		/**

		 *  "up",??????

		 */		

		public static const UP:String="up";

		/**

		 *  "over",??????

		 */		

		public static const OVER:String="over";

		/**

		 *  "down",??????

		 */

		public static const DOWN:String="down";

		/**

		 *  "disabled",????

		 */

		public static const DISABLED:String="disabled";

		//???????????????????

		private var _displayStates:Array=[];

		private var _defaultDisplayStates:Array=[];

		//????

		private var _state:String=UP;

		

		//???????

		private var _stateContainer:Sprite;

		/**

		 * ???? 

		 * @param displayStates:Array=null ?????????0-4???????????4?????

		 * 

		 */		

		public function ButtonBase(displayStates:Array=null)

		{

			super();

			this.listName="ButtonBase";

			

			init();

			

			setSize(100,22);

			

			if(displayStates==null){

				_defaultDisplayStates=buildDefaultStates();

				this.displayStates=_defaultDisplayStates;

			}

			this.round=6;

		}

		

		/*

		-----------------------------------

		setters getters

		-----------------------------------

		*/

		//

		/**

		 * ?????????0-4???????????4?????????????4????????:[]

		 * @param value:Array

		 * 

		 */		

		public function set displayStates(value:Array):void{

			if(_displayStates==value)return;

			

			_displayStates=value;

			

			if(_displayStates!=null&&_displayStates.length>0&&_stateContainer==null){

				_stateContainer=new Sprite();

				this.buildContainer.addChild(_stateContainer);

			}else if((_displayStates==null||_displayStates.length==0)&&_stateContainer!=null){

				this.buildContainer.removeChild(_stateContainer);

				_stateContainer=null;

			}

			

			if(_displayStates!=null&&_displayStates.length!=0){

				this.skin=null;

				_displayStates.length=Math.min(_displayStates.length,4);

			}

				

			setState(_state);

		}

		//

		/**

		 * ?????????0-4???????????4?????????????4????????:[]

		 * @param value:Array

		 * 

		 */	

		public function get displayStates():Array{

			return _displayStates;

		}

		//

		/**

		 * ??????,??????????????(?:["Skin1","Skin2"]),????????????????,??0?????????,

		 * ?skin???[]?null????

		 * @param value:Array

		 * 

		 */		

		override public function set skin(value:Array):void{

			if(this.skin==value){

				return;

			}

			super.skin=value;

			if(this.skin!=null&&this.skin.length>0)

				this.displayStates=null;

		}

		//

		/**

		 * ????url???0-4????????????????4?????

		 * @param value:Array

		 * 

		 */		

		override public function set displayURLs(value:Array):void{

			if(this.displayURLs==value)return;

			

			this.addEventListener(LoaderEvent.LOAD_COMPLETE,thisLoadComplete);

			super.displayURLs=value;

		}

		//

		/**

		 * ??????,??? true(??)

		 * @param value:Boolean

		 * 

		 */		

		override public function set enabled(value:Boolean):void{

			if(this.enabled==value){

				return;

			}

			super.enabled=value;

			

			if(this.enabled){

				setState(UP);

			}else{

				setState(DISABLED);

			}

		}

		//

		/**

		 * ????,???:0px 

		 * @param value:Number

		 * 

		 */		

		override public function set round(value:Number):void{

			if(this.round==value)return;

			

			super.round=value;

			

			updateDefaultStates();

		}

		//

		override public function set width(value:Number):void{

			if(this.width==value) return;

			

			super.width=value;

			

			updateDefaultStates();

			setState(_state);

		}

		//

		override public function set height(value:Number):void{

			if(this.height==value) return;

			

			super.height=value;

			

			updateDefaultStates();

			setState(_state);

		}

		/*

		-----------------------------------

		public  methods

		-----------------------------------

		*/

		//

		/**

		 * ??????????:ButtonBase.UP?????:<br/>

		 * <ul>

		 * <li>ButtonBase.UP ??????<br/>

		 * <li>ButtonBase.OVER ??????<br/>

		 * <li>ButtonBase.DOWN ??????<br/>

		 * <li>ButtonBase.DISABLED ????<br/> 

		 * </ul>

		 * @param state:String

		 * 

		 */		

		public function setState(state:String):void{

			var $states:Array=[UP,OVER,DOWN,DISABLED];

			if($states.indexOf(state)==-1)

				throw new Error("???????????:["+$states+"].");

			

			showState($states.indexOf(state));

			

			if(state==DISABLED){

				this.alpha=0.6;

			}else{

				this.alpha=1;

			}

		}

		//

		override public function destroy():void{

			this.removeEventListener(LoaderEvent.LOAD_COMPLETE,thisLoadComplete);

			removeListeners();

			super.destroy();

		}

		/*

		-----------------------------------

		private  methods

		-----------------------------------

		*/

		//???

		private function init():void{

			this.mouseChildren=false;

			

			addListeners();

		}

		//????

		private function addListeners():void{

			this.addEventListener(MouseEvent.MOUSE_OUT,thisMouseOut);

			this.addEventListener(MouseEvent.MOUSE_OVER,thisMouseOver);

			this.addEventListener(MouseEvent.MOUSE_UP,thisMouseUp);

			this.addEventListener(MouseEvent.MOUSE_DOWN,thisMouseDown);

		}

		//????

		public function removeListeners():void{

			this.removeEventListener(MouseEvent.MOUSE_OUT,thisMouseOut);

			this.removeEventListener(MouseEvent.MOUSE_OVER,thisMouseOver);

			this.removeEventListener(MouseEvent.MOUSE_UP,thisMouseUp);

			this.removeEventListener(MouseEvent.MOUSE_DOWN,thisMouseDown);

		}

		//??????

		private function buildDefaultStates():Array{

			var $states:Array=[];

			var $borderColors:Array=[0x999999,0x0099CC,0x0099CC,0x999999];

			var $colors:Array=[[0xeeeeee,0xcccccc],[0xeeeeee,0x85C9E0],[0x85C9E0,0xeeeeee],[0xcccccc,0xeeeeee]];

			for(var i:int=0;i<4;i++){

				$states.push(getState($borderColors[i],$colors[i],this.width,this.height,this.round));

			}

			

			return $states;

		}

		//????

		private function getState(borderColor:uint,colors:Array,width:Number,height:Number,round:Number):DisplayObject{

			var $m:Matrix=new Matrix();

			$m.createGradientBox(width,height,Math.PI/2);

			

			var $s:Shape=new Shape();

			$s.graphics.lineStyle(0,borderColor,1,true,"none","round");

			$s.graphics.beginGradientFill(GradientType.LINEAR,colors,[1,1],[0,0xff],$m);

			$s.graphics.drawRoundRect(0,0,width,height,round,round);

			$s.graphics.endFill();

			

			return $s;

		}

		//??????

		private function updateDefaultStates():void{

			if(_displayStates==_defaultDisplayStates){

				_defaultDisplayStates=buildDefaultStates();

				this.displayStates=_defaultDisplayStates;

			}

		}

		//????

		private function showState(index:int):void{

			var $skins:Array=this.skinTargets;

			for(var i:int=0;i<$skins.length;i++){

				if($skins[i] is MovieClip)

					MovieClip($skins[i]).gotoAndStop(index+1);

				

				if(this.autoSizeBySkin){

					this.width=MovieClip($skins[i]).width;

					this.height=MovieClip($skins[i]).height;

				}else{

					MovieClip($skins[i]).width=this.width;

					MovieClip($skins[i]).height=this.height;

				}

			}

			

			if(_stateContainer!=null){

				while(_stateContainer.numChildren>0){

					_stateContainer.removeChildAt(0);

				}

				if(_displayStates!=null&&_displayStates[index]!=null)

					_stateContainer.addChild(_displayStates[index]);

				

				if(this.autoSizeBySkin){

					this.width=_stateContainer.width;

					this.height=_stateContainer.height;

				}else{

					_stateContainer.width=this.width;

					_stateContainer.height=this.height;

				}

			}

		}

		//????

		private function thisMouseOver(e:MouseEvent):void{

			if(_state==OVER)return;

			

			_state=OVER;

			setState(_state);

		}

		//????

		private function thisMouseOut(e:MouseEvent):void{

			if(_state==UP)return;

			

			_state=UP;

			setState(_state);

		}

		//????

		private function thisMouseUp(e:MouseEvent):void{

			thisMouseOver(e);

		}

		//????

		private function thisMouseDown(e:MouseEvent):void{

			if(_state==DOWN)return;

			

			_state=DOWN;

			setState(_state);

		}

		//????????

		private function thisLoadComplete(e:LoaderEvent):void{

			this.displayStates=e.datas;

			

			this.removeEventListener(LoaderEvent.LOAD_COMPLETE,thisLoadComplete);

		}

		//????

		private function drawRect(target:*,thickness:Number=0,color:uint=0,alpha:Number=1,x:Number=0,y:Number=0,width:Number=1,height:Number=1,round:Number=0,filled:Boolean=false):void{

			if((target as Sprite)==null&&(target as Shape)==null){

				throw new Error("target????:Sprite?Shape????????.");

			}

			target.graphics.clear();

			if(width==0||height==0){

				return;

			}

			

			target.graphics.lineStyle(thickness,color,0,false,"none");

			if(filled)

				target.graphics.beginFill(color,alpha);

			target.graphics.drawRoundRect(x,y,width,height,round,round);

			target.graphics.endFill();

		}

	}

}