裁剪图片

<?xml version="1.0" encoding="utf-8"?><mx:TitleWindow xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="416" height="352" showCloseButton="true"creationComplete="init()" title="图片上传" xmlns:components="com.teamsun.framework.components.*" close="titlewindow1_closeHandler(event)"><mx:Script><![CDATA[import com.flex3.events.WindowCloseEvent;import com.flex3.util.CommonFunctions;import com.teamsun.framework.common.pojo.Designcomponent;import com.teamsun.framework.design.ws.IDesigncomponentServiceWSRO;import flash.net.FileReference;import mx.events.CloseEvent;import mx.events.FlexEvent;import mx.events.MoveEvent;import mx.graphics.codec.JPEGEncoder;import mx.managers.PopUpManager;import mx.rpc.events.ResultEvent;private var file: FileReference;private var size:String;private var fileName:String;private var filePath:String = "";private var request:URLRequest;public var comp:Designcomponent;private function init(): void{Security.allowDomain("*");}private function upload():void{file = new FileReference();file.addEventListener(Event.SELECT, file_selectHandler);file.addEventListener(Event.COMPLETE, file_completeHandler);file.browse(new Array(new FileFilter("图像文件 (*.jpg,*.gif,*.png)", "*.jpg; *.gif; *.png")));}private function file_selectHandler(event:Event):void{file.load();}private function file_completeHandler(event:Event):void{if (file.data.length>0){picture.source = file.data;}else{CommonFunctions.showInfo("错误提示","图片加载错误!");}}private function cutPicture():void{var bx:Number = cutPictureBox.x - picture.x;var by:Number = cutPictureBox.y - picture.y ;var bw:Number = cutPictureBox.boxWidth ;var bh:Number = cutPictureBox.boxHeight ;var pictureBD:BitmapData = new BitmapData(picture.width, picture.height);pictureBD.draw(picture);var pixels:ByteArray = pictureBD.getPixels(new Rectangle(bx, by, bw, bh)); pixels.position=0;var cutBD:BitmapData = new BitmapData(bw, bh);cutBD.setPixels(new Rectangle(0, 0, bw, bh), pixels);var sb:Bitmap = new Bitmap(cutBD);sb.smoothing = true;sb.pixelSnapping = PixelSnapping.ALWAYS;preImg.source = sb;}private function save():void{confimBtn.enabled = false;var picture:ByteArray = null;if (preImg.source is Bitmap){var bitmapData:BitmapData = new BitmapData(preImg.width, preImg.height); bitmapData.draw(preImg); picture = new JPEGEncoder(100).encode(bitmapData);IDesigncomponentServiceWSRO.INSTANCE.updateComponentImg(comp,picture,on_updateComponentImg_handle,CommonFunctions.faultmethod);}else(preImg.source is ByteArray){picture = preImg.source as ByteArray;IDesigncomponentServiceWSRO.INSTANCE.updateComponentImg(comp,picture,on_updateComponentImg_handle,CommonFunctions.faultmethod);} }private function on_updateComponentImg_handle(event:ResultEvent):void{confimBtn.enabled = true;var reobj:Object = event.result;if(reobj){if(reobj.isSuccued == true){var closeevent:WindowCloseEvent = new WindowCloseEvent(WindowCloseEvent.WINDOW_CLOSE);closeevent.IsConfirm = true;    closeevent.ReturnValue = reobj.value;dispatchEvent(closeevent);PopUpManager.removePopUp(this);}CommonFunctions.showInfo("提示",reobj.message);}else{CommonFunctions.showInfo("提示","操作失败!");}}protected function picture_completeHandler(event:Event):void{picture.x = 0;picture.y = 0;cutPictureBox.x = 0;cutPictureBox.y = 0;}protected function picture_ioErrorHandler(event:IOErrorEvent):void{CommonFunctions.showInfo("错误提示","图片加载错误!");}protected function titlewindow1_closeHandler(event:CloseEvent):void{PopUpManager.removePopUp(this);}private var lockX:Number;private var lockY:Number;private var isMove:Boolean = false;protected function picture_mouseDownHandler(event:MouseEvent):void{isMove = true;lockX = event.localX;lockY = event.localY;}protected function picture_mouseMoveHandler(event:MouseEvent):void{if(isMove){var tempX:Number =  event.localX - lockX;var tempY:Number = event.localY - lockY;picture.x += tempX;picture.y += tempY;cutPictureBox.x +=tempX;cutPictureBox.y +=tempY;}}protected function picture_mouseUpHandler(event:MouseEvent):void{if(!cutPictureBox.visible){return;}isMove = false;cutPicture();}protected function picture_doubleClickHandler(event:MouseEvent):void{var tempX:Number =  cutPictureBox.boxWidth;var tempY:Number = cutPictureBox.boxHeight;if(( event.localX >= tempX/2) &&  (event.localX+tempX/2 <= picture.width))cutPictureBox.x = picture.x + event.localX - tempX/2;if(event.localY >= tempY/2 &&  (event.localY+tempY/2 <= picture.height))cutPictureBox.y = picture.y + event.localY- tempY/2;cutPicture();}protected function picture_updateCompleteHandler(event:FlexEvent):void{var temp:Number = picture.width;if(0 == temp)return ;if(picture.width < 65 || picture.height<65){cutPictureBox.visible =false;preImg.source = file.data;picture.x = (imgCanvas.width-preImg.width)/2;picture.y = (imgCanvas.height-preImg.height)/2;picture.doubleClickEnabled= false;picture.removeEventListener(MouseEvent.MOUSE_DOWN,picture_mouseDownHandler);picture.removeEventListener(MouseEvent.MOUSE_MOVE,picture_mouseMoveHandler);picture.removeEventListener(MouseEvent.DOUBLE_CLICK,picture_doubleClickHandler);picture.removeEventListener(MouseEvent.MOUSE_UP,picture_mouseUpHandler);return ;}else{picture.doubleClickEnabled=true;picture.addEventListener(MouseEvent.MOUSE_DOWN,picture_mouseDownHandler);picture.addEventListener(MouseEvent.MOUSE_MOVE,picture_mouseMoveHandler);picture.addEventListener(MouseEvent.DOUBLE_CLICK,picture_doubleClickHandler);picture.addEventListener(MouseEvent.MOUSE_UP,picture_mouseUpHandler);}cutPictureBox.visible =true;}]]></mx:Script><mx:HBox height="100%" width="100%" ><mx:VBox  height="100%" width="100%" verticalAlign="middle" horizontalAlign="center"><!--<components:ScaleLabels id="scale"/>--><mx:Canvas width="256" height="256" left="10" id="imgCanvas" top="40" borderThickness="1" borderStyle="solid" horizontalScrollPolicy="off" verticalScrollPolicy="off"><mx:Image id="picture"   smoothBitmapContent="true" updateComplete="picture_updateCompleteHandler(event)"  complete="picture_completeHandler(event)"  ioError="picture_ioErrorHandler(event)"/><components:ScaleBox id="cutPictureBox" cutObject="{picture}" visible="false" boxWidth="64" boxHeight="64"  cut="cutPicture()" x="64" y="55"/></mx:Canvas></mx:VBox><mx:VBox  height="100%" width="120" verticalAlign="middle" horizontalAlign="center"><mx:VBox height="256" width="100" verticalAlign="middle" horizontalAlign="center" verticalGap="15" borderStyle="solid" borderThickness="1" paddingBottom="8" paddingTop="8" paddingRight="8"><!--<mx:Label text="图片大小在64*64显示效果最佳" />--><mx:Label text="图像预览:" /><mx:Canvas width="64" height="64" borderThickness="1" borderStyle="solid"><mx:Image id="preImg" width="100%" height="100%"/></mx:Canvas><mx:Label text="64×64" /><mx:Button id="loadBtn" click="upload();" label="本地上传"/></mx:VBox></mx:VBox></mx:HBox><mx:ControlBar horizontalAlign="right"><mx:Button label="确定" click="save();" id="confimBtn"/><mx:Button label="关闭" click="titlewindow1_closeHandler(null)"/></mx:ControlBar></mx:TitleWindow>