imagepanel.java

一个简单的socket聊天工具,实现在发送文件和语音聊天等功能,还能聊天的同时听音乐,分服务器端和客户端两部分

/*
 * Created on 2006-2-25
 *
 * TODO To change the template for this generated file go to
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 */

/**
 * @author 之诸暇
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
import java.awt.*;

import javax.media.*;
import javax.swing.*;

public class ImagePanel extends JPanel{
public ImagePanel(String path)
{
  
  image=Toolkit.getDefaultToolkit().getImage(path);
  MediaTracker tracker=new MediaTracker(this);
  tracker.addImage(image,1);
  
  try
  {
   tracker.waitForID(1);
  }
  catch (InterruptedException exception)
  {
  }
}

public void paintComponent(Graphics g){
  super.paintComponent(g);
  
  int imageWidth=image.getWidth(this);
  int imageHeight=image.getHeight(this);
  
  int FrameWidth=getWidth();
  int FrameHeight=getHeight();
  
  int x=(FrameWidth-imageHeight)/2;
      int y=(FrameHeight-imageHeight)/2;
      g.drawImage(image,x,y,null);
      g.drawString("你好",20,20);
      
}
private Image image;
public static void main(String args[]){
	JFrame f=new JFrame();
	f.getContentPane().add(new ImagePanel("b.gif"));
	Menu m = new Menu ("文件"); 
	MenuItem mi = new MenuItem ("打开"); 
	mi.addActionListener (this); 
	m.add (mi); 
	m.addSeparator (); 
	CheckboxMenuItem cbmi = new CheckboxMenuItem ("循环", false); 
	cbmi.addItemListener (this); 
	m.add (cbmi); 
	m.addSeparator (); 
	mi = new MenuItem ("退出"); 
	mi.addActionListener (this); 
	m.add (mi); 
	MenuBar mb = new MenuBar (); 
	mb.add (m); 
	setMenuBar (mb); 
	setSize (200, 200); 
	setVisible (true); 
	f.setSize(300,300);
	f.setVisible(true);
}
}