[AS3]我的第二个Flash CS3组件—LRCParser组件

【组件版本】：0.5
【功能简述】：LRCParser组件是用来解析lrc歌词文件的代码类组件。
【运行平台】：Flash CS3，ActionScript3，Flash Player 9 +
【功能演示】：

【调用接口】：
public interface com.klstudio.media.LRCParser {<br/> //获取lrc的偏移量(单位为毫秒数);<br/> public function getOffset():int;<br/> <br/> //设置lrc的偏移量;<br/> public function setOffset(offset:int):void;<br/> <br/> //获取lrc的歌名;<br/> public function getTitle():String;<br/> <br/> //获取lrc的歌手名;<br/> public function getArtist():String;<br/> <br/> //获取lrc的专辑名;<br/> public function getSpecial():String;<br/> <br/> //获取lrc文件的作者名;<br/> public function getAuthor():String;<br/> <br/> //获取lrc的歌词列表;<br/> public function getList():Array;<br/> <br/> //加载lrc文件,默认字符编码为GB2312;<br/> public function load(url:String,charset:String="gb2312"):void;<br/>}

【使用说明】：
     1、使用前提条件：
         安装了Flash CS3软件；
         安装了 Adobe Extension Manager 1.8扩展管理器，如果没有请先到这里下载： http://www.adobe.com/cn/exchange/em_download/ ；
         下载了LRCParser组件安装包文件： LRCParser.mxp
     2、打开LRCParser组件安装包，将LRCParser组件安装到Flash CS3里；
     3、将LRCParser组件拖到正在打开的fla文件的场景或库里，然后在调用代码（或类）的上面加上“import com.klstudio.media.LRCParser;”一行代码就可以了，接下来就"按照上面的接口和参考下面的调用实现"来调用这个解析器了。
【调用实例】：
package project.test {<br/> <br/> import flash.display.*;<br/> import flash.events.*;<br/> import flash.geom.Matrix;<br/> import flash.geom.Point;<br/> import flash.geom.Rectangle;<br/> import flash.text.*;<br/> import flash.filters.*;<br/> import flash.net.URLRequest;<br/> <br/> import flash.media.Sound;<br/> import flash.media.SoundChannel;<br/> import flash.utils.Timer;<br/> <br/> //导入系统组件;<br/> import fl.controls.Button;<br/> <br/> //导入LRCParser类;<br/> import com.klstudio.media.LRCParser;<br/> <br/> public class Test4 extends Sprite{<br/> //定义解析器;<br/> private var parser:LRCParser;<br/> //定义声音对象;<br/> private var snd:Sound;<br/> //定义声音播放频道;<br/> private var channel:SoundChannel;<br/> //歌词序号;<br/> private var id:uint = 0;<br/> //定时器;<br/> private var timer:Timer;<br/> //显示平台;<br/> private var base:Sprite;<br/> //歌词显示;<br/> private var bmp:Bitmap;<br/> //播放按钮;<br/> private var button:Button;<br/> <br/> private var preWidth:uint;<br/> private var preHeight:uint;<br/> private var copyright:TextField;<br/> public function Test4(){<br/> preWidth = 400;<br/> preHeight = 100;<br/> <br/> stage.scaleMode = StageScaleMode.NO_SCALE;<br/> stage.showDefaultContextMenu = false;<br/> <br/> //显示平台;<br/> base = new Sprite();<br/> addChild(base);<br/> <br/> //初始化解析器;<br/> parser = new LRCParser();<br/> parser.addEventListener(Event.COMPLETE,completeHandler);<br/> parser.addEventListener(ErrorEvent.ERROR,errorHandler);<br/> parser.load("/demo/test/爱情转移.lrc");<br/> <br/> //初始化定时器;<br/> timer = new Timer(50);<br/> timer.addEventListener(TimerEvent.TIMER,timerHandler);<br/> <br/> //初始化声音对象;<br/> snd = new Sound();<br/> snd.load(new URLRequest("/demo/test/爱情转移.mp3"));<br/> <br/> //copyright;<br/> copyright = new TextField();<br/> copyright.autoSize = TextFieldAutoSize.LEFT;<br/> copyright.selectable = false;<br/> copyright.defaultTextFormat = new TextFormat("Verdana",9,0xFFFFFF,true,null,null,"http://www.klstudio.com","_blank");<br/> copyright.text = "POWERED BY KINGLONG";<br/> copyright.x = preWidth - copyright.width - 5;<br/> copyright.y = preHeight - copyright.height - 5;<br/> var filter:BitmapFilter = getBitmapFilter();<br/> copyright.filters = [filter];<br/> copyright.alpha = 0.8;<br/> addChild(copyright);<br/> <br/> //显示平台;<br/> base.graphics.lineStyle(1,0x666666);<br/> base.graphics.beginFill(0xF4F4F4);<br/> base.graphics.drawRect(0,0,preWidth,preHeight - copyright.height - 10);<br/> <br/> base.graphics.lineStyle(1,0x999999);<br/> base.graphics.moveTo(0,25);<br/> base.graphics.lineTo(preWidth,25);<br/> base.graphics.moveTo(150,1);<br/> base.graphics.lineTo(150,25);<br/> base.graphics.moveTo(250,1);<br/> base.graphics.lineTo(250,25);<br/> <br/> base.addChild(getTextField("title","歌名:",new Rectangle(3,3,147)));<br/> base.addChild(getTextField("artist","歌手:",new Rectangle(153,3,97)));<br/> base.addChild(getTextField("special","专辑:",new Rectangle(253,3,147)));<br/> <br/> bmp = new Bitmap(new BitmapData(preWidth-4,preHeight-54,false,0));<br/> bmp.x = 2;<br/> bmp.y = 27;<br/> addChild(bmp);<br/> <br/> button = new Button();<br/> button.x = (preWidth - button.width)/2;<br/> button.y = 40; <br/> button.label = "PLAY MUSIC";<br/> button.enabled = false;<br/> button.addEventListener(MouseEvent.CLICK, clickHandler);<br/> addChild(button); <br/> }<br/> <br/> //按钮点击事件;<br/> private function clickHandler(event:MouseEvent):void{<br/> //声音播放频道<br/> if(channel != null){<br/> channel.removeEventListener(Event.SOUND_COMPLETE, soundCompleteHandler);<br/> channel = null;<br/> }<br/> channel = snd.play();<br/> channel.addEventListener(Event.SOUND_COMPLETE, soundCompleteHandler);<br/> timer.start();<br/> button.visible = false;<br/> }<br/> <br/> <br/> //获得文本框;<br/> private function getTextField(name:String,lbl:String,rect:Rectangle,clr:uint=0x666666):TextField{<br/> var txf:TextField = new TextField(); <br/> txf.width = rect.width;<br/> txf.selectable = false;<br/> txf.defaultTextFormat = new TextFormat("Courier New",12,clr);<br/> txf.name = name;<br/> txf.text = lbl;<br/> txf.x = rect.x;<br/> txf.y = rect.y;<br/> return txf;<br/> }<br/> <br/> //定时器间隔事件;<br/> private function timerHandler(event:TimerEvent):void{<br/> //获取歌词列表;<br/> var arr:Array = parser.getList();<br/> if(id<arr.length){<br/> //时间数;<br/> //要显示的歌词时间数是播放器时间数+歌词偏移量;<br/> var point:int = int(channel.position + parser.getOffset());<br/> if(point <= arr[id+1].time){<br/> drawLyric(arr[id].lyric);<br/> }else{<br/> id ++;<br/> }<br/> }<br/> }<br/> <br/> //光晕滤镜;<br/> private function getBitmapFilter():BitmapFilter {<br/> var color:Number = 0x000000;<br/> var alpha:Number = 0.8;<br/> var blurX:Number = 2;<br/> var blurY:Number = 2;<br/> var strength:Number = 6;<br/> var inner:Boolean = false;<br/> var knockout:Boolean = false;<br/> var quality:Number = BitmapFilterQuality.HIGH;<br/> return new GlowFilter(color,<br/> alpha,<br/> blurX,<br/> blurY,<br/> strength,<br/> quality,<br/> inner,<br/> knockout);<br/> }<br/> <br/> //lrc文件加载完成事件;<br/> private function completeHandler(event:Event):void{<br/> trace("completeHandler>>"+event);<br/> var title:TextField = base.getChildByName("title") as TextField;<br/> var artist:TextField = base.getChildByName("artist") as TextField;<br/> var special:TextField = base.getChildByName("special") as TextField;<br/> title.text = "歌名:" + parser.getTitle();<br/> artist.text = "歌手:" + parser.getArtist();<br/> special.text = "专辑:" + parser.getSpecial();<br/> button.enabled = true;<br/> }<br/> <br/> //显示歌词;<br/> private function drawLyric(lyric:String):void{<br/> var txf:TextField = getTextField("lyric",lyric,new Rectangle(0,0,380),0xFFCC00);<br/> bmp.bitmapData.applyFilter(bmp.bitmapData,new Rectangle(0,0,bmp.width,bmp.height),new Point(0,0),new ColorMatrixFilter([1,0,0,0,-5,0,1,0,0,-5,0,0,1,0,-5,0,0,0,1,0])); <br/> bmp.bitmapData.applyFilter(bmp.bitmapData,new Rectangle(0,0,bmp.width,bmp.height),new Point(0,0),new BlurFilter(12,12));<br/> var matrix:Matrix = new Matrix();<br/> matrix.translate(10,13);<br/> bmp.bitmapData.draw(txf,matrix,null,BlendMode.SCREEN);<br/> }<br/> <br/> //lrc文件加载失败事件;<br/> private function errorHandler(event:ErrorEvent):void{<br/> trace("errorHandler>>"+event);<br/> }<br/> //歌曲播放完成事件;<br/> private function soundCompleteHandler(event:Event):void {<br/> trace("soundCompleteHandler: " + event);<br/> if(timer.running){<br/> timer.stop();<br/> }<br/> bmp.bitmapData.fillRect(new Rectangle(0,0,bmp.width,bmp.height),0); <br/> id = 0;<br/> button.visible = true;<br/> }<br/> }<br/> <br/>}<br/>
实例文件打包下载：http://www.klstudio.com/demo/test/test4.rar (由于mp3比较大，所以就没有打包进去，下载到点这里) ;