flash as3做几何画板-先写一个按钮类

package?draw1
{
???import?flash.display.MovieClip;
???import?flash.display.Sprite;
???import?flash.events.MouseEvent;
//按钮类
???public?class?draw_button?extends?MovieClip?{
////////////////////////////////////////////////////////////////
//hit：能接受鼠标输入的区域
//sel：本按钮是否已经被选中
//
////////////////////////////////////////////////////////////////
?var?hit:Sprite=new?Sprite();
?var?sel:Boolean?=new?Boolean();
////////////////////////////////////////////////////////////////
//
//函数名：draw_button//
//说明：??用来构建按钮
////////////////////////////////////////////////////////////////
?public?function?draw_button(){
??this.buttonMode?=?true;
??this.addEventListener(MouseEvent.MOUSE_DOWN,?mouseDownListener);
??this.addEventListener(MouseEvent.MOUSE_UP,?mouseUpListener);
??update();
??//添加事件

??this.addEventListener(MouseEvent.MOUSE_DOWN,?mouseDownListener);
??this.addEventListener(MouseEvent.MOUSE_UP,?mouseUpListener);
??}
?private?function?mouseDownListener(evt:MouseEvent){
??if?(this.sel==false){
???update(2);
???}else{
???update();
???}
??}
?private?function?mouseUpListener(evt:MouseEvent){
??for?(i=1;i
//设置按钮是否被选中
?public?function?setSel(select:Boolean?){
??this.sel=select;
??}
//获取当前按钮的焦点状态
?public?function?getSel():Boolean?{
??return?this.sel;
??}
//更新显示按钮，粗边框/细边框
?public?function?update(lStyle:Number=0){
??if?(lStyle==0){
???this.sel=false;
???}else{
???this.sel=true;
???}
??hit.graphics.clear();
??hit.graphics.beginFill(0x888888,0.08);
??hit.graphics.lineStyle(lStyle);
??hit.graphics.drawRect(0,0,23.5,23.5);
??hit.graphics.endFill();
??this.addChild(hit);
??}
?}
}
本文转自：http://www.5uflash.com/flashjiaocheng/Flash-as3-jiaocheng/1944.html