?
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" ????? xmlns:s="library://ns.adobe.com/flex/spark" ????? xmlns:mx="library://ns.adobe.com/flex/mx" ????? creationComplete="initData();" ????? minWidth="955" minHeight="600">?<s:layout>??<s:VerticalLayout/>?</s:layout>?<fx:Declarations>??<!-- 将非可视元素（例如服务、值对象）放在此处 -->?</fx:Declarations>?<fx:Script>??<![CDATA[???//旋转初始值???private var rotateDeg:Number=0;???private function initData():void{???}???//旋转???private function degreesToRadians(degrees:Number):Number { ????return (degrees * (Math.PI / 180)); ???} ???/**??? * 判断是左旋转还是有旋转??? * */???private function button_click(evt:Event):void {????var direction:int;????switch (evt.currentTarget) {?????case degreesUp:??????direction = +1;??????break;?????case degreesDown:??????direction = -1;??????break;????}????var radians:Number = degreesToRadians(direction);????var offsetWidth:Number = image2.width / 2;????var offsetHeight:Number = image2.height / 2;????var tempMatrix:Matrix = image2.transform.matrix;????tempMatrix.translate(-offsetWidth,-offsetHeight);????tempMatrix.rotate(radians);????tempMatrix.translate(+offsetWidth,+offsetHeight);????????image2.transform.matrix = tempMatrix;????????rotateDeg = image2.rotation;???}???//恢复原装???private function resetImage():void { ????var tempMatrix:Matrix = image2.transform.matrix;????tempMatrix.identity();????image2.transform.matrix = tempMatrix;????rotateDeg = image2.rotation;???} ???//放大???private function toBig():void{????var tempMatrix:Matrix = image2.transform.matrix;????tempMatrix.scale(1.1,1.1);????image2.transform.matrix = tempMatrix;????rotateDeg = image2.rotation;???}???//缩小???private function toSmall():void{????var tempMatrix:Matrix = image2.transform.matrix;????tempMatrix. scale(0.9,0.9);????image2.transform.matrix = tempMatrix;????rotateDeg = image2.rotation;???????}???//上下左右移动???//上移???private function toTop():void{????var tempMatrix:Matrix = image2.transform.matrix;????tempMatrix.translate(0,-10);????image2.transform.matrix = tempMatrix;????rotateDeg = image2.rotation;???}???//下移???private function toDown():void{????var tempMatrix:Matrix = image2.transform.matrix;????tempMatrix.translate(0,10);????image2.transform.matrix = tempMatrix;????rotateDeg = image2.rotation;???}???//左移???private function toLeft():void{????var tempMatrix:Matrix = image2.transform.matrix;????tempMatrix.translate(-10,0);????image2.transform.matrix = tempMatrix;????rotateDeg = image2.rotation;???}???//右移???private function toRight():void{????var tempMatrix:Matrix = image2.transform.matrix;????tempMatrix.translate(10,0);????image2.transform.matrix = tempMatrix;????rotateDeg = image2.rotation;???}???//快照显示???private function showImage3():void{????var bd:BitmapData = new BitmapData(g3.width,g3.height);????var m:Matrix = new Matrix();????bd.draw(g3,m);????image3.source=new Bitmap(bd);???}??]]>?</fx:Script>?<mx:HBox>??<s:Button label="+" autoRepeat="true" click="toBig();" buttonDown="toBig();"/>??<s:Button label="-" autoRepeat="true" click="toSmall();" buttonDown="toSmall();"/>??<s:Button label="↑" autoRepeat="true" click="toTop();" buttonDown="toTop();"/>??<s:Button label="←" autoRepeat="true" click="toLeft();" buttonDown="toLeft();"/>??<s:Button label="→" autoRepeat="true" click="toRight();" buttonDown="toRight();"/>??<s:Button label="↓" autoRepeat="true" click="toDown();" buttonDown="toDown();"/>??<s:Button label="左旋转" id="degreesUp" autoRepeat="true" click="button_click(event);"????? buttonDown="button_click(event);" />??<s:Button label="右旋转" id="degreesDown" autoRepeat="true" click="button_click(event);"????? buttonDown="button_click(event);"/>??<s:Button label="Reset" click="resetImage();"/>?</mx:HBox>?<mx:Canvas id="g3" width="200" height="200" horizontalScrollPolicy="off" verticalScrollPolicy="off">??<mx:Image id="image2" ????? source="assets/images/1.jpg" ????? width="200" ????? scaleContent="true" ????? maintainAspectRatio="true" ????? height="200" /> ?</mx:Canvas>?<s:Button label="生成快照" click="showImage3();"/>?<mx:Image width="200" id="image3" height="200"/></s:Application>
