xmlns:s="library://ns.adobe.com/flex/spark"

xmlns:mx="library://ns.adobe.com/flex/mx"?minWidth="955"?minHeight="600">

privatevarrotateDeg:Number=0;

//鼠標(biāo)滾動(dòng)縮放

privatefunctionimgZoom(evt:MouseEvent):void

{

varp:Point?=imgs.globalToLocal(newPoint(evt.stageX,evt.stageY));//指定以鼠標(biāo)的所在位置?為中心?放大

varpt:Point?=tf.globalToLocal(newPoint(evt.stageX,evt.stageY));

vartempMatrix:Matrix?=?imgs.transform.matrix;

vartempM:Matrix?=?tf.transform.matrix;

tempMatrix.translate(-p.x,-p.y);//1，限制放大縮小的上邊框

tempM.translate(-p.x,-p.y);

if(evt.delta?<?0)

{

tempMatrix.scale(0.9,?0.9);//向下滾動(dòng)縮小

tempM.scale(0.9,?0.9);

}

else

{

tempMatrix.scale(1.1,?1.1);//向上滾動(dòng)放大

tempM.scale(1.1,?1.1);

}

tempMatrix.translate(p.x,p.y);//1，限制放大縮小的下邊框

tempM.translate(p.x,p.y);

imgs.transform.matrix?=?tempMatrix;

tf.transform.matrix?=?tempM;

rotateDeg?=?imgs.rotation;

}

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