/AnjueLib/src/CommonLib/org/bitmaps/cutBitmap/view/CutPanel.as

package org.bitmaps.cutBitmap.view

{

	import flash.display.BitmapData;

	import flash.display.Sprite;

	import flash.events.Event;

	import flash.events.MouseEvent;

	import flash.geom.Matrix;

	import flash.geom.Point;

	import flash.geom.Rectangle;

	import flash.text.TextField;

	import flash.ui.Mouse;

	import flash.utils.ByteArray;

	

	import org.bitmaps.cutBitmap.tool.DrawArrow;

	import org.bitmaps.cutBitmap.tool.DrawEllipse;

	import org.bitmaps.cutBitmap.tool.DrawRect;

	import org.bitmaps.event.BmpEvent;

	import org.images.JPGEncoder;

	import org.utils.DisplayObjectUtil;

	

	/**

	 * ????

	 * @author anjue

	 */

	public class CutPanel extends Sprite

	{

		public static const CUT_COMPLETE:String = "cut_complete";

		public static const CUT_EXIT:String = "CUT_EXIT";

		

		private var panel_w:uint = 300;

		private var panel_h:uint = 300;

		

		

		/**???????**/

		private var w_spot_num:uint = 3;

		

		/**???????**/

		private var h_spot_num:uint = 3;

		

		private var _container:Sprite;

		private var _bg:Sprite;

		private var _mc_hand:Sprite;

		private var _toolPanel:DrawToolPanel;

		private var _txt_w_h:TextField;

		private var currentDraw:DrawRect;

		private var current_draw_color:uint = 0;

		

		private var drawVec:Vector.<DrawRect>;

		private var spotVec:Vector.<CutTouchSpot>;

		

		public function CutPanel($container:Sprite)

		{

			_container = $container;

			initBg();

			initSpot();

		}

		

		private function initBg():void

		{

			_bg = new Sprite();

			_bg.graphics.beginFill(0xFFFFFF,0.1);

			_bg.graphics.lineStyle(1,0);

			_bg.graphics.drawRect(0,0,panel_w,panel_h);

			_bg.addEventListener(MouseEvent.MOUSE_DOWN,bgDown);

			_bg.doubleClickEnabled = true;

			_bg.addEventListener(MouseEvent.DOUBLE_CLICK,bgDoubleclick);

			_bg.graphics.endFill();

			this.addChild(_bg);

			

			_mc_hand = new Sprite();

			_mc_hand.graphics.beginFill(0xFF0000);

			_mc_hand.graphics.drawRect(0,0,10,10);

			_mc_hand.graphics.endFill();

			this.addChild(_mc_hand);

			_mc_hand.visible = false;

			

			_toolPanel = new DrawToolPanel();

			_toolPanel.drawFun = drawFun;

			_toolPanel.undoFun = undoRect;

			_toolPanel.completeFun = completeFun;

			_toolPanel.colorFun = colorFun;

			_toolPanel.exitFun = exitFun;

			_toolPanel.x = panel_w-_toolPanel.width;

			_toolPanel.y = panel_h + 2;

			this.addChild(_toolPanel);

			

			_txt_w_h = new TextField();

			_txt_w_h.width = 58;

			_txt_w_h.height = 16;

			_txt_w_h.mouseEnabled = false;

			_txt_w_h.textColor = 0xFFFFFF;

			_txt_w_h.background = true;

			_txt_w_h.backgroundColor = 0x010101;

			_txt_w_h.text = panel_w + "*" + panel_h;

			this.addChild(_txt_w_h);

			

			drawVec = new Vector.<DrawRect>();

		}

		

		private function update(bg_alpha:Number = 0.3):void

		{

			panel_w = spotVec[7].x-spotVec[0].x;

			panel_h = spotVec[7].y-spotVec[0].y;

			_bg.graphics.clear();

			_bg.graphics.beginFill(0xFFFFFF,bg_alpha);

			_bg.graphics.lineStyle(1,0);

			_bg.graphics.drawRect(spotVec[0].x,spotVec[0].y,panel_w,panel_h);

			_bg.graphics.endFill();

			updateSpot();

			if(localToGlobal(new Point(spotVec[0].x,spotVec[0].y)).y<16)

			{

				_txt_w_h.y = spotVec[0].y;

			}else

			{

				_txt_w_h.y = spotVec[0].y-16;

			}

			_txt_w_h.x = spotVec[0].x;

			_txt_w_h.text = panel_w + "*" + panel_h;

		}

		

		private function updateSpot():void

		{

			var per_w:uint = w_spot_num-1;

			var per_h:uint = h_spot_num-1;

			var i:uint = 0;

			var len:uint = spotVec.length;

			for(i;i<len;i++)

			{

				spotVec[i].x = spotVec[0].x + spotVec[i].index_x*(panel_w/per_w);

				spotVec[i].y = spotVec[0].y + spotVec[i].index_y*(panel_h/per_w);

			}

		}

		

		private function drawFun(type:uint = 1):void

		{

			_bg.removeEventListener(MouseEvent.MOUSE_DOWN,bgDown);

			if(!currentDraw || currentDraw.type!=type)

			{

				if(currentDraw)

				{

					currentDraw.removeEventListener(DrawRect.DRAW_COMPLETE,drawComplete);

					currentDraw.destroy();

				}

				addDraw(type);

			}

		}

		

		/**

		 * ??????  

		 * @param type 1.???  2.??? 3.???

		 */

		public function addDraw(type:uint = 1):void

		{

			var rec:DrawRect;

			switch(type)

			{

				case DrawToolPanel.DRAW_RECT:

					rec = new DrawRect(_bg.getRect(_container));

					break;

				case DrawToolPanel.DRAW_ELLIPSE:

					rec = new DrawEllipse(_bg.getRect(_container));

					break;

				case DrawToolPanel.DRAW_ARROW:

					rec = new DrawArrow(_bg.getRect(_container));

					break;

				default:

					throw "???????????????";

					break;

			}

			rec.color = current_draw_color;

			rec.addEventListener(DrawRect.DRAW_COMPLETE,drawComplete);

			_container.addChild(rec);

			currentDraw = rec;

		}

		

		private function drawComplete(e:Event):void

		{

			var rec:DrawRect = e.currentTarget as DrawRect;

			rec.removeEventListener(DrawRect.DRAW_COMPLETE,drawComplete);

			drawVec.push(rec);

			addDraw(rec.type);

		}

		

		public function clearCurrentDraw():void

		{

			if(currentDraw)

			{

				currentDraw.removeEventListener(DrawRect.DRAW_COMPLETE,drawComplete);

				currentDraw.destroy();

			}

		}

		

		private function undoRect():void

		{

			if(drawVec.length>0)

			{

				var item:DrawRect = drawVec.pop();

				item.destroy();

			}

		}

		

		private function completeFun():void

		{

			var bmd:BitmapData = new BitmapData(_bg.width,_bg.height,true,0);

			var rec:Rectangle = _bg.getRect(this.parent);

			var matrix:Matrix = new Matrix();

			matrix.translate(-rec.x,-rec.y);

			this.visible = false;

			bmd.draw(_container,matrix);

			this.visible = true;

			var by:ByteArray = new JPGEncoder().encode(bmd);

			var eve:BmpEvent = new BmpEvent(CUT_COMPLETE);

			eve.data = by;

			dispatchEvent(eve);

		}

		

		private function colorFun($color:uint):void

		{

			current_draw_color = $color;

			if(currentDraw)

			{

				currentDraw.color = $color;

			}

		}

		

		private function exitFun():void

		{

			var eve:BmpEvent = new BmpEvent(CUT_EXIT);

			dispatchEvent(eve);

		}

		

		private function initSpot():void

		{

			spotVec = new Vector.<CutTouchSpot>();

			var per_w:uint = w_spot_num-1;

			var per_h:uint = h_spot_num-1;

			var i:uint = 0;

			var j:uint = 0;

			var index:uint = 0;

			for(i;i<3;i++)

			{

				j = 0;

				for(j;j<3;j++)

				{

					if(i!=0 && i!=per_w && j!=0 && j!=per_h)

					{

						continue;

					}

					var _spot:CutTouchSpot = new CutTouchSpot();

					_spot.index = index;

					_spot.addEventListener(CutTouchSpot.SPOT_MOVE,spotMove);

					_spot.addEventListener(CutTouchSpot.SPOT_DOWN,spotDown);

					_spot.addEventListener(CutTouchSpot.SPOT_UP,spotUp);

					_spot.x = (panel_w/per_w)*j;

					_spot.y = (panel_h/per_h)*i;

					_spot.index_x = j;

					_spot.index_y = i;

					_spot.original_x = _spot.x;

					_spot.original_y = _spot.y;

					_spot.spotList = spotVec;

					this.addChild(_spot);

					spotVec.push(_spot);

					index++;

				}

			}

		}

		

		private function spotDown(e:Event):void

		{

			_toolPanel.visible = false;

			_txt_w_h.visible = true;

		}

		

		private function spotUp(e:Event):void

		{

			_toolPanel.visible = true;

			update(0.1);

			updateToolPosition();

		}

		

		private function spotMove(e:Event):void

		{

			var target:CutTouchSpot = e.currentTarget as CutTouchSpot;

			if(target.index_x == 2 && target.index_y == 0)

			{

				spotVec[0].y = spotVec[0].original_y+(target.y-target.original_y);

				spotVec[7].x = spotVec[7].original_x+(target.x-target.original_x);

			}else if((target.index_x == 0 && target.index_y == 2))

			{

				spotVec[0].x = spotVec[0].original_x+(target.x-target.original_x);

				spotVec[7].y = spotVec[7].original_y+(target.y-target.original_y);

			}else if(target.index_x == 0)

			{

				spotVec[0].x = spotVec[0].original_x+(target.x-target.original_x);

			}else if(target.index_y == 0)

			{

				spotVec[0].y = spotVec[0].original_y+(target.y-target.original_y);

			}else if(target.index_x == 2)

			{

				spotVec[7].x = spotVec[7].original_x+(target.x-target.original_x);

			}else if(target.index_y == 2)

			{

				spotVec[7].y = spotVec[7].original_y+(target.y-target.original_y);

			}

			update();

		}

		

		private function bgDown(e:MouseEvent):void

		{

			_toolPanel.visible = false;

			var rect:Rectangle = DisplayObjectUtil.limitDisplayInRectangle(_bg,new Rectangle(0,0,stage.stageWidth,stage.stageHeight));

			this.startDrag(false,rect);

			stage.addEventListener(MouseEvent.MOUSE_UP,bgUp);

			_bg.addEventListener(MouseEvent.MOUSE_MOVE,bgMove);

			this.addEventListener(Event.ENTER_FRAME,enterFrame);

			

			_mc_hand.visible = true;

			_mc_hand.x = this.mouseX;

			_mc_hand.y = this.mouseY;

			Mouse.hide();

			

		}

		

		private function bgMove(e:MouseEvent):void

		{

			_mc_hand.x = this.mouseX;

			_mc_hand.y = this.mouseY;

		}

		

		private function bgUp(e:MouseEvent):void

		{

			_toolPanel.visible = true;

			this.removeEventListener(Event.ENTER_FRAME,enterFrame);

			_bg.removeEventListener(MouseEvent.MOUSE_MOVE,bgMove);

			stage.removeEventListener(MouseEvent.MOUSE_UP,bgUp);

			this.stopDrag();

			updateToolPosition();

			_mc_hand.visible = false;

			Mouse.show();

		}

		

		private function bgDoubleclick(e:MouseEvent):void

		{

			completeFun();

		}

		

		private function enterFrame(e:Event):void

		{

			if(localToGlobal(new Point(spotVec[0].x,spotVec[0].y)).y<16)

			{

				_txt_w_h.y = spotVec[0].y;

			}else

			{

				_txt_w_h.y = spotVec[0].y-16;

			}

		}

		

		/**

		 * ???????

		 */

		private function updateToolPosition():void

		{

			var _w:uint = spotVec[7].x;

			var _h:uint = spotVec[7].y;

			if(localToGlobal(new Point(_w,_h)).y>stage.stageHeight-24)

			{

				_toolPanel.x = _w-_toolPanel.width-5;

				_toolPanel.y = _h-24;

			}else

			{

				_toolPanel.x = _w-_toolPanel.width-5;

				_toolPanel.y = _h;

			}

		}

		

		public function destroy():void

		{

			this.removeEventListener(Event.ENTER_FRAME,enterFrame);

			stage.removeEventListener(MouseEvent.MOUSE_UP,bgUp);

			_bg.removeEventListener(MouseEvent.MOUSE_MOVE,bgMove);

			_bg.removeEventListener(MouseEvent.DOUBLE_CLICK,bgDoubleclick);

			while(drawVec.length>0)

			{

				var item:DrawRect = drawVec.pop();

				item.destroy();

			}

			while(spotVec.length>0)

			{

				var spot:CutTouchSpot = spotVec.pop();

				spot.removeEventListener(CutTouchSpot.SPOT_MOVE,spotMove);

				spot.destroy();

			}

			if(currentDraw)

			{

				currentDraw.removeEventListener(DrawRect.DRAW_COMPLETE,drawComplete);

				currentDraw.destroy();

			}

			if(_toolPanel)

			{

				_toolPanel.destroy();

				_toolPanel = null;

			}

			if(this.parent)

			{

				this.parent.removeChild(this);

			}

		}

	}

}