www.pudn.com > photoFlow_AS3_001.rar > Item.as

 
package com.flashloaded.as3{ 
	 
	import flash.display.MovieClip; 
	import flash.display.DisplayObject; 
	import flash.events.Event; 
	 
	import com.flashloaded.as3.ImageContainer; 
	import com.flashloaded.as3.SelectionSystem; 
	 
	public class Item extends MovieClip{ 
		 
		private var _data:Object; 
		private var _index:int; 
		private var _depth:uint; 
		 
		private var _xpos:Number=0; 
		private var _ypos:Number=0; 
		 
		private var _sys:SelectionSystem; 
		private var _inited:Boolean; 
		private var _image:DisplayObject; 
		 
		public function Item(){ 
			 
		} 
		 
		public function init(sys:SelectionSystem,data:Object=null,index:int=undefined){ 
			_data=data; 
			_index=index; 
			setSys(SelectionSystem(sys)); 
			 
			createGraphic(); 
		} 
		 
		protected function createGraphic():void{ 
			trace("create graphic"); 
			//override 
			 
		} 
		 
		protected function initPreloadVars():void{ 
			trace("init vars before create graphic"); 
			//override 
		} 
		 
		protected function imageReady(e:Event):void{ 
			//override 
			 
			dispatchEvent(new Event(Event.INIT)); 
			_inited=true; 
		} 
		 
		//create child automatically from data //from data.className and data.url 
		protected function addDataGraphic():Boolean{ 
			var imageCon:ImageContainer=new ImageContainer(data); //it will decide to load or to attach 
			return addChildIfValid(imageCon.create()); 
		} 
	 
		protected function addChildIfValid(child:DisplayObject):Boolean{ 
			if(child!=null){ 
				addChild(child); 
				return true; 
			} 
			return false;			 
		} 
		 
		protected function setImage(image:DisplayObject):void{ 
			_image=image; 
		} 
		 
		public function get image():DisplayObject{ 
			return _image; 
		} 
		 
		protected function resizeImage(image:DisplayObject,type:String,w:Number,h:Number):void{ 
			 
			if(type!="none"){ 
				if(type=="toFit"){ 
					var p:Number; 
					if(image.width>image.height){ 
						p=image.width/w; 
						image.width=w; 
						image.height=image.height/p; 
						 
					}else{ 
						p=image.height/h; 
						image.height=h; 
						image.width=image.width/p; 
					} 
				}else if(type=="toFill"){ 
					image.width=w; 
					image.height=h; 
				} 
			} 
		} 
		 
		public function get data():Object{ 
			return _data; 
		} 
		public function set data(data:Object):void{ 
			_data=data; 
		} 
		 
		public function get index():int{ 
			return _index; 
		} 
		public function set index(index:int):void{ 
			_index=index; 
		} 
		 
		public function get id():String{ 
			return data.id; 
		} 
		public function set id(id:String):void{ 
			data.id=id; 
		} 
		 
		public function set depth(num:uint){ 
			_depth=num; 
		} 
		public function get depth():uint{ 
			return _depth; 
		} 
		 
		public function get xpos():Number{ 
			return _xpos; 
		} 
		public function set xpos(pos:Number):void{ 
			_xpos=pos; 
		} 
		 
		public function get ypos():Number{ 
			return _ypos; 
		} 
		public function set ypos(pos:Number):void{ 
			_ypos=pos; 
		} 
		 
		public function render():void{ 
			renderPosition(); 
			renderGraphic(); 
		} 
		 
		public function renderPosition():void{ 
			x=_xpos; 
			y=_ypos; 
		} 
		 
		public function renderGraphic():void{ 
			//override 
		} 
		 
		public function createImage():void{ 
			//override 
		} 
		 
		public function set selected(boo:Boolean):void{ 
			if(boo){ 
				onSelection(); 
			}else{ 
				onRemoveSelection(); 
			} 
		} 
		protected function onSelection():void{ 
			//override 
		} 
		protected function onRemoveSelection():void{ 
			//override 
		} 
		 
		public function get selected():Boolean{ 
			return (sys.selectedIndex==index); 
		} 
		private function setSys(sys:SelectionSystem):void{ 
			_sys=sys; 
		} 
		public function get sys():*{ 
			return _sys; 
		} 
		public function get inited():Boolean{ 
			return _inited; 
		} 
	} 
}