radio.java

java多媒体技术 7.1 播放声音文件 7.2 收音机 7.3 电子琴 7.4 吃豆游戏 7.5 简易壁球 7.6 弹球游戏 7.7 拯救生命 7.8 扫雷 7.9 双向飞碟 7

import java.applet.*;
import java.awt.*;

public class Radio extends Applet implements Runnable
{
	private Thread	 m_radio = null;
	AudioClip sound;
	AudioClip[] sounds = new AudioClip[7];
    Image origImage, origImage1, origImage2, origImage3;
    boolean onoff_switch;
    int playing=0, counter=0, TOP_POS=40;
	String AudioClip0;
	String AudioClip1;
	String AudioClip2;
	String AudioClip3;
	String AudioClip4;
	String AudioClip5;
	String AudioClip6;

public Radio()
{
  Panel p;
  setBackground(Color.black);
  onoff_switch = false;
  p = new Panel();
  p.setLayout(new FlowLayout(FlowLayout.CENTER,4,4));
  p.add(new Button("  1  "));
  p.add(new Button("  2  "));
  p.add(new Button("  3  "));
  p.add(new Button("  4  "));
  p.add(new Button("  5  "));
  p.add(new Button("  6  "));
  Button onoff = new Button("开/关");
  onoff.setForeground(Color.red);
  onoff.setBackground(Color.yellow);
  onoff.repaint();
  p.add("West",onoff);
  add("South",p);
}

public String getAppletInfo()
{
return "Name: Radio\r\n" +
       "Author: Ali";
}

public void init()
{
	AudioClip0 = "onoff.au";
	AudioClip1 = getParameter("button1");
	AudioClip2 = getParameter("button2");
	AudioClip3 = getParameter("button3");
	AudioClip4 = getParameter("button4");
	AudioClip5 = getParameter("button5");
	AudioClip6 = getParameter("button6");
    String imageName = getParameter("image");

	if ( imageName == null ) imageName = "images\\music002.gif";
	origImage = getImage(getDocumentBase(), imageName);
	MediaTracker mt = new MediaTracker(this);
	mt.addImage(origImage, 0);
	try {
		mt.waitForAll();
	}
	catch (Exception e) {
	}

	String imageName1 = getParameter("image1");
	if ( imageName1 == null ) imageName1 = "images\\speak1.gif";
	origImage1 = getImage(getDocumentBase(), imageName1);
	mt.addImage(origImage1, 0);
	try {
		mt.waitForAll();
	}
	catch (Exception e) {
	}

	String imageName2 = getParameter("image2");
	if ( imageName2 == null ) imageName2 = "images\\speak2.gif";
	origImage2 = getImage(getDocumentBase(), imageName2);
	mt.addImage(origImage2, 0);
	try {
		mt.waitForAll();
	}
	catch (Exception e) {
	}

	String imageName3 = getParameter("image3");
	if ( imageName3 == null ) imageName3 = "images\\speak3.gif";
	origImage3 = getImage(getDocumentBase(), imageName3);
	mt.addImage(origImage3, 0);
	try {
		mt.waitForAll();
	}
	catch (Exception e) {
	}	
        loadAudioClip(0,AudioClip0);
	loadAudioClip(1,AudioClip1);
        loadAudioClip(2,AudioClip2);
	loadAudioClip(3,AudioClip3);
	loadAudioClip(4,AudioClip4);
	loadAudioClip(5,AudioClip5);
	loadAudioClip(6,AudioClip6);
}    

public void update(Graphics g)
{
	paint(g);
}

public void paint(Graphics g)
{
     g.drawImage(origImage, 52, TOP_POS, this);
     g.setColor(Color.gray);
     g.drawLine(401,3,401,117);
     g.drawLine(402,2,402,118);
     g.drawLine(403,1,403,119);
     g.drawLine(3,117,401,117);
     g.drawLine(2,118,402,118);
     g.drawLine(1,119,403,119);
     g.drawLine(3,3,3,117);
     g.drawLine(3,3,401,3);
     
	 if ( onoff_switch == true )
        g.setColor(Color.green);
	 g.fillArc(370,15,7,7,0,360);

     switch (counter) {
            case 0:
           		 g.drawImage(origImage3, 2, TOP_POS, this);
                 g.drawImage(origImage3, 352, TOP_POS, this);
				 counter++;
				 break;
			case 1:
           		 g.drawImage(origImage1, 2, TOP_POS, this);
                 g.drawImage(origImage1, 352, TOP_POS, this);
				 counter++;
				 break;
            case 2:
          		 g.drawImage(origImage2, 2, TOP_POS, this);
                 g.drawImage(origImage2, 352, TOP_POS, this);
				 counter++;
	    		 break;
            case 3:
           		 g.drawImage(origImage3, 2, TOP_POS, this);
                 g.drawImage(origImage3, 352, TOP_POS, this);
				 counter++;
				 break;
                 }
	if ( counter == 4 ) counter=1;					
	}

public void start()
{
	if (m_radio == null)
	{
		m_radio = new Thread(this);
		m_radio.start();
	}
}

public void stop()
{
		if (m_radio != null)
		{
			m_radio.stop();
			m_radio = null;
		}
}

public void run()
{
while (true) {
	try
	{
	if ( playing != 0 ) {
		if ( counter == 0 )
		    counter = 1;
		repaint();
		Thread.sleep(500);
		}
	Thread.sleep(50);
	}
	catch (InterruptedException e)
	{
		stop();
	}
}
}

public boolean action(Event evt, Object arg)
  {
  if (arg.equals("  6  ") && ( onoff_switch == true )) {
	  playAudioLoop(6);
     }
  if (arg.equals("  5  ") && ( onoff_switch == true )) {
	  playAudioLoop(5);
     }
  if (arg.equals("  4  ") && ( onoff_switch == true )) {
	  playAudioLoop(4);
     }
  if (arg.equals("  3  ") && ( onoff_switch == true )) {
	  playAudioLoop(3);
     }
  if (arg.equals("  2  ") && ( onoff_switch == true )) {
	  playAudioLoop(2);
     }
  if (arg.equals("  1  ") && ( onoff_switch == true )) {
	  playAudioLoop(1);
  }
  if (arg.equals("开/关")) {
      if ( onoff_switch == true ) {
		  sounds[playing].stop();
		  onoff_switch = false;
		  }
	  else {
		  onoff_switch = true;
	  }
	  sounds[0].play();
	  counter = 0;
	  playing = 0;
	  repaint();
	  }
  else return super.action(evt, arg);
  return true;  
  }

public void playAudio(String clip)
{
try {
sound = getAudioClip(getCodeBase(), clip);
}
catch (Exception e) {
	return;
}
sound.play();  
}

public void playAudioLoop(int i)
{
if ( i != 0 ) sounds[playing].stop();
playing = i;
playAudio("click.au");
try {
  Thread.sleep(1000);
  } catch (InterruptedException e)
	{
	stop();
	}  
sounds[i].loop();  
}

public void loadAudioClip(int i, String clip)
{
try {
sounds[i] = getAudioClip(getCodeBase(), clip);
}
catch (Exception e) {
	return;
}
}
}