生成按钮类
package com.ui
{ import flash.display.SimpleButton; import org.osmf.layout.AbsoluteLayoutFacet; public class Button extends SimpleButton { public function Button(thistext: String):void { var arr:Array = init(thistext); super(arr[0],arr[1],arr[2],arr[2]); // 调用父类的构造器函数 } private function init(thistext: String):Array { var atext:Text = new Text(thistext); var btext:Text = new Text(thistext); var ctext:Text = new Text(thistext); var a:Mysprite = new Mysprite(0xffff00); var b:Mysprite = new Mysprite(0x00ff00); var c:Mysprite = new Mysprite(0x0000ff); a.addChild(atext); b.addChild(btext); c.addChild(ctext); var abc:Array = [a, b, c]; return abc; } } }
绘图类
package com.ui
{ import flash.display.Sprite; public class Mysprite extends Sprite { public function Mysprite(col:uint):void { init(col); } private function init(col:uint):void { this.graphics.beginFill(col); this.graphics.drawRect(0,0,100,30); this.graphics.endFill(); } } }
文档类
package { import com.ui.Button; import flash.display.Sprite; import flash.events.Event; import flash.events.MouseEvent; public class Main extends Sprite { private var isdown: Boolean = false; private var oldx: Number; private var oldy: Number; private var ceng:Sprite; // 绘图层 // --------------------------------------------- private var dataarr:Array = new Array(); // 记录鼠标位置的数组 private var ci:uint = 0; // 记录绘图时向数组内添加的次数 private var huici:uint; // 记录回放时播放到数组内的哪一步 private var a:Button; // 重绘按钮 private var b:Button; // 清除按钮 public function Main():void { init(); } private function init():void { // 创建2个按钮，并监听按钮点击事件 a = new Button("重绘"); a.x = 400; a.y = 300; b = new Button("清除"); b.x = 400; b.y = 340; this.addChild(a); this.addChild(b); a.addEventListener(MouseEvent.CLICK,draw); b.addEventListener(MouseEvent.CLICK,clear); // 创建绘制图层 ceng = new Sprite(); this.addChild(ceng); // 监听鼠标的三种动作状态（按下，移动，抬起） this.stage.addEventListener(MouseEvent.MOUSE_DOWN, ondown); this.stage.addEventListener(MouseEvent.MOUSE_MOVE, onmove); this.stage.addEventListener(MouseEvent.MOUSE_UP, onup); } private function ondown(evt:MouseEvent):void { oldx = this.stage.mouseX; oldy = this.stage.mouseY; if(a.hitTestPoint(this.stage.mouseX, this.stage.mouseY, true) || b.hitTestPoint(this.stage.mouseX, this.stage.mouseY, true)) { isdown = false; } else { isdown = true; dataarr[ci] = new Array(oldx, oldy); // 将按下去时的第一步坐标记录在回放数组里 } } private function onmove(evt:MouseEvent):void { if(isdown == true) { ci++; // 次数递增 ceng.graphics.lineStyle(2,0xff0000); ceng.graphics.moveTo(oldx, oldy); ceng.graphics.lineTo(stage.mouseX, stage.mouseY); oldx = stage.mouseX; oldy = stage.mouseY; dataarr[ci] = new Array(oldx, oldy); // 将绘制的每一步坐标都记录在回放数组中 } } private function onup(evt:MouseEvent):void { isdown = false; } // 重绘 private function draw(evt:MouseEvent):void { this.stage.addEventListener(Event.ENTER_FRAME,huizhi); } // 执行回放 private function huizhi(evt:Event):void { // 如果绘制的次数小于数组的长度，则可继续回放 // 绘制时，起始值是0，假如绘制长度为100,所以绘制次数一定要小于总长度 if(huici < (dataarr.length - 1)) { ceng.graphics.lineStyle(2,0x000000); ceng.graphics.moveTo(dataarr[huici][0], dataarr[huici][1]); huici++; ceng.graphics.lineTo(dataarr[huici][0], dataarr[huici][1]); } else { // 将绘制次数清零 huici = 0; // 移除监听器 this.stage.removeEventListener(Event.ENTER_FRAME, huizhi); } } // 清除 private function clear(evt:MouseEvent):void { ceng.graphics.clear(); } }
}