sound.java

J2me唆哈的代码

/*
 * Created on 2005-11-16 by pcy
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package com.nokia.mid.sound;
import javax.microedition.media.*;
import java.io.*;
public class Sound {

    public static final int FORMAT_TONE=1;
    public static final int FORMAT_WAVE=5;
    public static final int SOUND_PLAYING=0;
    public static final int SOUND_STOPPED=1;
    public static final int SOUND_UNINITIALIZEDSound=3;
    
    private Player player; 
    
    private int state;
    private int gain;
    private SoundListener listener;
    private int freq;
    private int dur;
    private boolean playFreq;
    
    public Sound(byte[] data, int type){
    	init(data,type);
    }
    
    public Sound(int freq, long duration){
    	init(freq,duration);
    }
    
    public void init(int freq, long duration){
    	/*release();
    	this.freq=freq;
    	dur=(int)duration;
    	playFreq=true;*/
    }
    
    public void init(byte[] data, int type){
    	/*release();
    	if(data==null){
    		throw new NullPointerException();
    	}
    	String stype="";
    	if(type==FORMAT_TONE){
    		stype="audio/x-tone-seq";
    	}else if(type==FORMAT_WAVE){
    		stype="audio/x-wav";
    	}else{
    		throw new java.lang.IllegalArgumentException();
    	}
    	try{
    		player=Manager.createPlayer(new ByteArrayInputStream(data),stype);
    	}catch(Exception e){
    		throw new java.lang.IllegalArgumentException() ;
    	}
    	state=SOUND_STOPPED;
    	playFreq=false;*/
    }
    
    public void play(int loop){
    	/*if(loop<0){
    		throw new IllegalArgumentException();
    	}else if(loop>255){
    		return;
    	}
    	if(playFreq){
    		int lp=loop;
    		try{
    			fireEvt(SOUND_PLAYING);
	    		while(lp>0||loop==0){
	    			Manager.playTone(freq,dur,gain);
	    		}
    		}catch(Exception e){
    			e.printStackTrace();
    		}
    	}else if(player!=null){
    		try{
    			if(player.getState()==Player.STARTED){
	    			player.stop();
	    		}
	    		if(loop==0){
	    			loop=-1;
	    		}
	    		player.setLoopCount(loop);
	    		fireEvt(SOUND_PLAYING);
	    		player.start();
    		}catch(Exception e){
    			e.printStackTrace();
    		}
    	}else{
    		throw new IllegalArgumentException();
    	}*/
    }
    
    public void stop(){
    	/*if(state==SOUND_PLAYING){
    		if(!playFreq&&player!=null){
    			try{
    				player.stop();
    			}catch(Exception e){
    				e.printStackTrace();
    			}
    		}
    		fireEvt(SOUND_STOPPED);
    	}*/
    }
    
    public void resume(){
    	/*if(!playFreq&&player!=null){
    		try{
    			player.start();
    		}catch(Exception e){
    			e.printStackTrace();
    		}
    	}*/
    }
    
	public void release(){
		/*if(player!=null){
    		player.close();
    		player=null;
    	}
		playFreq=false;*/
	}

	public void setGain(int gain){
		this.gain=gain;
	}
	
	public int getGain(){
		return gain;
	}
	
	public int getState(){
		return state;
	}
	
	public static int getConcurrentSoundCount(int type){
		if(type==FORMAT_TONE){
			return 1;
		}else if(type==FORMAT_WAVE){
			return 3;
		}else{
			throw new java.lang.IllegalArgumentException();
		}
	}
	
	public static int[] getSupportedFormats(){
		int fmt[]=new int[2];
		fmt[0]=FORMAT_TONE;
		fmt[1]=FORMAT_WAVE;
		return fmt;
	}
	
	public void setSoundListener(SoundListener listener){
		this.listener=listener;
	}
	
	private void fireEvt(int event){
		state=event;
		if(listener!=null){
			listener.soundStateChanged(this,event);
		}		
	}
}