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Flash类的运用:可放大、缩小、旋转的鼠标操作类
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本教程主要用Flash类来制作一个特效,要用到鼠标操作元件,放大、缩小、旋转、移动。花了一些时间,终于实现了,代码整理了一下,和大家分享一下.

希望大家提出意见。修改。废话少说,先看效果:

操作类:

packagecom.mygamemylove{

importflash.display.DisplayObject;

importflash.display.Graphics;

importflash.display.Sprite;

importflash.events.Event;

importflash.events.MouseEvent;

importflash.geom.Point;

importflash.geom.Rectangle;

publicclassopObject{

privatevarspOp:Sprite;

privatevarcurrentOp:Sprite;

privatevararrPoint:Array;

//

privatevarisDrogOp:Boolean;

privatevarisDrog:Boolean;

privatevarpointType:uint;

privatevarspPoint:Sprite;

//

privatevarsizeType:Number;

privatevarminW:Number;

privatevarminH:Number;

privatevardrawC:uint;

privatevarspParent:Sprite;

//旋转

privatevarisR:Boolean

publicvarnowRotation:Number;

publicvarpCent:Point;

publicvarspRotationPoint:Sprite;

publicvarspCenterPoint:Sprite;

publicvarnumOpPointWH:uint;

/**

*操作一个对象,可以放大缩小,旋转。

*

*原创flash代码,尽在自娱自乐www.MyGameMyLove.com

*smallerbirdsmallerbird@gmail.com2009-9-12

*

*

*@spParent:Sprite操作对象的父对象

*@currentOp:Sprite其中操作的一个对象

*@sizeType:Number调整尺寸的显示模式。

*@minW:Number缩小最小尺寸宽

*@minH:Number缩小最小尺寸高

*@drawC:Number操作柄的色

*@numOpPointWH:Number操作柄的宽高

**/

publicfunctionopObject(spParent:Sprite,currentOp:Sprite,sizeType:Number=1,
minW:Number=10,minH:Number=10,drawC:Number=0xff0000,numOpPointWH:uint=10){

this.numOpPointWH=numOpPointWH;

this.currentOp=currentOp

this.spParent=spParent;

this.spParent.mouseEnabled=false;

this.sizeType=sizeType;

this.minW=minW;

this.minH=minH;

isDrogOp=false;

isDrog=false;

pointType=0;

arrPoint=newArray();

nowRotation=0;

isR=true

}

源代码下载地址:http://www.mygamemylove.com/bbs/viewthread.php?tid=48

//改变注册点

publicstaticfunctionRegPoint($obj:Sprite,$point:Point):void{

vartmp_point:Point=$obj.parent.globalToLocal($obj.localToGlobal($point));

varlen:int=$obj.numChildren;

while(len–){

vartmp_obj:DisplayObject=$obj.getChildAt(len);

tmp_obj.x-=$point.x;

tmp_obj.y-=$point.y;

}

$obj.x=tmp_point.x;

$obj.y=tmp_point.y;

}

privatefunctiondrawR(g:Graphics,c:uint,x:Number,y:Number,w:Number,h:Number):void{

g.beginFill(c,0.5);

g.drawRoundRect(x,y,w,h,5);

g.endFill();

}

privatefunctiondrawOpPont(sp:Sprite,x:Number,y:Number,c:uint,w:Number,h:Number):void{

varspTem:Sprite=newSprite();

spTem.x=x;

spTem.y=y;

drawR(spTem.graphics,c,-w/2,-h/2,w,h);

sp.addChild(spTem);

arrPoint.push(spTem);

}

//

privatefunctionclrPointSize():void{

if(arrPoint.length!=0){

for(vari:uint=0;i<arrPoint.length;i++){

arrPoint[i].removeEventListener(MouseEvent.MOUSE_DOWN,fun_point_down);

arrPoint[i].removeEventListener(MouseEvent.MOUSE_UP,fun_point_up);

spParent.removeChild(arrPoint[i]);

}

arrPoint=newArray();

}

spParent.graphics.clear();

}

//

privatefunctionclrPoint():void{

clrPointSize();

if(spCenterPoint!=null){

spParent.removeChild(spCenterPoint);

spCenterPoint=null;

spParent.removeChild(spRotationPoint);

}

}

//

privatefunctionshowOp4point(sp:Sprite):void{

//

clrPoint();

varr:Rectangle=sp.getRect(spParent);

//

varx1:Number=r.x;

vary1:Number=r.y;

varw1:Number=r.width;

varh1:Number=r.height;

varw2:Number=w1/2;

varh2:Number=h1/2;

//

varc:uint=drawC;

varp_tem:Sprite=spParent;

//

pCent=newPoint(x1+w2,y1+h2);

//

drawOpPont(p_tem,x1,y1,c,numOpPointWH,numOpPointWH);

drawOpPont(p_tem,x1+w2,y1,c,numOpPointWH,numOpPointWH);

drawOpPont(p_tem,x1+w1,y1,c,numOpPointWH,numOpPointWH);

//

drawOpPont(p_tem,x1+w1,y1+h2,c,numOpPointWH,numOpPointWH);

drawOpPont(p_tem,x1+w1,y1+h1,c,numOpPointWH,numOpPointWH);

//

drawOpPont(p_tem,x1+w2,y1+h1,c,numOpPointWH,numOpPointWH);

drawOpPont(p_tem,x1,y1+h1,c,numOpPointWH,numOpPointWH);

drawOpPont(p_tem,x1,y1+h2,c,numOpPointWH,numOpPointWH);

for(vari:uint=0;i<arrPoint.length;i++){

arrPoint[i].addEventListener(MouseEvent.MOUSE_DOWN,fun_point_down);

arrPoint[i].addEventListener(MouseEvent.MOUSE_UP,fun_point_up);

}

//

//画连线

vargTem:Graphics=p_tem.graphics;

gTem.clear();

gTem.lineStyle(1,c,0.5);

gTem.moveTo(arrPoint[0].x,arrPoint[0].y);

for(i=1;i<arrPoint.length;i++){

gTem.lineTo(arrPoint[i].x,arrPoint[i].y);

}

gTem.lineTo(arrPoint[0].x,arrPoint[0].y);

gTem.lineTo(arrPoint[4].x,arrPoint[4].y);

gTem.moveTo(arrPoint[6].x,arrPoint[6].y);

gTem.lineTo(arrPoint[2].x,arrPoint[2].y);

//

gTem.moveTo(arrPoint[1].x,arrPoint[1].y);

gTem.lineTo(arrPoint[5].x,arrPoint[5].y);

//

gTem.moveTo(arrPoint[7].x,arrPoint[7].y);

gTem.lineTo(arrPoint[3].x,arrPoint[3].y);

//画旋转的点

//中心点

if(isR){

spCenterPoint=newSprite();

spCenterPoint.mouseEnabled=false;

spCenterPoint.graphics.beginFill(0xff0000,0.5);

spCenterPoint.graphics.drawCircle(0,0,numOpPointWH/2);

spCenterPoint.graphics.endFill();

spCenterPoint.x=pCent.x;

spCenterPoint.y=pCent.y;

varpTem:Point=currentOp.globalToLocal(pCent);

spParent.addChild(spCenterPoint);

//旋转控制点

spRotationPoint=newSprite();

spRotationPoint.graphics.beginFill(0xff0000,0.5);

spRotationPoint.graphics.drawCircle(0,0,numOpPointWH/2);

spRotationPoint.graphics.endFill();

spRotationPoint.x=x1-numOpPointWH;

spRotationPoint.y=y1-numOpPointWH;

spParent.addChild(spRotationPoint);

spRotationPoint.addEventListener(MouseEvent.MOUSE_DOWN,fun_point_down);

spRotationPoint.addEventListener(MouseEvent.MOUSE_UP,fun_point_up);

}

//

}

publicfunctionfun_opUp(e:MouseEvent):void{

isDrogOp=false;

currentOp.stopDrag();

showOp4point(currentOp);

}

//如果isR=false不可以进行旋转操作

publicfunctionfun_opDown(e:MouseEvent,isR:Boolean=true):void{

this.isR=isR

currentOp=e.targetasSprite;

showOp4point(currentOp);

//

currentOp.startDrag();

isDrogOp=true;

}

publicfunctionfun_over(e:MouseEvent):void{

varspTem:Sprite=e.targetasSprite;

}

//

//不能越过边界

publicfunctionnoMoveBorder(rBorder:Rectangle):uint{

varr:Rectangle=currentOp.getBounds(spParent)

varnumOffsetTem:Number=10

if(rBorder.width-numOffsetTem<r.width){

currentOp.width=rBorder.width-numOffsetTem

return0

}

if(rBorder.height-numOffsetTem<r.height){

currentOp.height=rBorder.height-numOffsetTem

return0

}

//trace(currentOp);

if(r.x<rBorder.x){

opObject.RegPoint(currentOp,currentOp.globalToLocal(pCent));

no();

currentOp.x=rBorder.x+r.width/2;

}

if(r.y<rBorder.y){

opObject.RegPoint(currentOp,currentOp.globalToLocal(pCent));

no();

currentOp.y=rBorder.y+r.height/2;

}

if(r.x+r.width>rBorder.x+rBorder.width){

opObject.RegPoint(currentOp,currentOp.globalToLocal(pCent));

no();

currentOp.x=rBorder.x+rBorder.width-r.width/2;

}

if(r.y+r.height>rBorder.y+rBorder.height){

opObject.RegPoint(currentOp,currentOp.globalToLocal(pCent));

no();

currentOp.y=rBorder.y+rBorder.height-r.height/2;

}

return0

}

//取消的所有动作

publicfunctionno():void{

isDrog=false;

clrPoint();

if(spPoint){

spPoint.stopDrag();

}

currentOp.stopDrag();

}

//重新设置注册点

privatefunctionseCentXY():void{

varpTem:Point;

switch(pointType){

case1:

pTem=currentOp.globalToLocal(newPoint(arrPoint[4].x,arrPoint[4].y));

break;

case2:

pTem=currentOp.globalToLocal(newPoint(arrPoint[5].x,arrPoint[5].y));

break;

case3:

pTem=currentOp.globalToLocal(newPoint(arrPoint[6].x,arrPoint[6].y));

break;

case4:

pTem=currentOp.globalToLocal(newPoint(arrPoint[7].x,arrPoint[7].y));

break;

case5:

pTem=currentOp.globalToLocal(newPoint(arrPoint[0].x,arrPoint[0].y));

break;

case6:

pTem=currentOp.globalToLocal(newPoint(arrPoint[1].x,arrPoint[1].y));

break;

case7:

pTem=currentOp.globalToLocal(newPoint(arrPoint[2].x,arrPoint[2].y));

break;

case8:

pTem=currentOp.globalToLocal(newPoint(arrPoint[3].x,arrPoint[3].y));

break;

}

opObject.RegPoint(currentOp,pTem);

}

privatefunctionfun_point_down(e:MouseEvent):void{

//

varspTem:Sprite=e.targetasSprite;

spPoint=spTem;

if(spRotationPoint==spPoint){

vardx:Number=currentOp.parent.mouseX-pCent.x;

vardy:Number=currentOp.parent.mouseY-pCent.y;

nowRotation-=(Math.atan2(dy,dx)*180/Math.PI);

varpTem:Point=currentOp.globalToLocal(pCent);

opObject.RegPoint(currentOp,pTem);

spTem.alpha=0;

clrPointSize();

}else{

pointType=0;

for(vari:uint=0;i<arrPoint.length;i++){

if(arrPoint[i]==spTem){

pointType=i+1;

break;

}

}

seCentXY();

}

isDrog=true;

spTem.startDrag(true);

}

privatefunctionfun_point_up(e:MouseEvent):void{

nowRotation=currentOp.rotation;

clrPoint();

}

privatefunctionisUpObj(sp:Sprite):Boolean{

varisRe:Boolean=false;

if(currentOp==sp){

isRe=true;

}else{

for(vari:uint=0;i<arrPoint.length;i++){

if(arrPoint[i]==sp){

isRe=true;

break;

}

}

//

if(spRotationPoint==sp){

isRe=true;

}

}

returnisRe;

}

publicfunctionfun_Mouse_up(e:MouseEvent):void{

isDrog=false;

if(!isUpObj(e.targetasSprite)){

clrPoint();

}else{

if(spPoint){

spPoint.stopDrag();

}

}

}

publicfunctionfun_onEnterFrame(e:Event):Boolean{

if(isDrogOp){

showOp4point(currentOp);

}

if(!isDrog){

returnfalse;

}

varspTem:Sprite=spPoint;

vardx:Number,dy:Number;

//旋转

if(spRotationPoint==spPoint){

dx=currentOp.parent.mouseX-pCent.x;

dy=currentOp.parent.mouseY-pCent.y;

currentOp.rotation=(Math.atan2(dy,dx)*180/Math.PI)+nowRotation;

returntrue;

}

//放大///////////////

switch(pointType){

case1:

dx=arrPoint[4].x-spTem.x;

dy=arrPoint[4].y-spTem.y;

break;

case2:

dx=0;

dy=arrPoint[5].y-spTem.y;

break;

case3:

dx=spTem.x-arrPoint[6].x;

dy=arrPoint[6].y-spTem.y;

break;

case4:

dx=spTem.x-arrPoint[7].x;

dy=0;

break;

case5:

dx=spTem.x-arrPoint[0].x;

dy=spTem.y-arrPoint[0].y;

break;

case6:

dx=0;

dy=spTem.y-arrPoint[1].y;

break;

case7:

dx=arrPoint[2].x-spTem.x;

dy=spTem.y-arrPoint[2].y;

break;

case8:

dx=arrPoint[3].x-spTem.x;

dy=0;

break;

}

if(dx>minW){

currentOp.width=dx;

}

if(dy>minH){

currentOp.height=dy;

}

showOp4point(currentOp);

returntrue;

}

}

}

讨论: http://www.missyuan.com/viewthread.php?tid=420172

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文章标题:Flash类的运用:可放大、缩小、旋转的鼠标操作类

文章链接:https://www.4tu.cn/design/38771.html

更新时间:2024年08月29日

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