checboxlistcellrender.java

简单的QQ聊天。。服务器端可监视客户端上下线情况

package chat.list;
import java.awt.Component;
import javax.swing.*;
import java.awt.*;
public class ChecBoxListCellRender extends  DefaultListCellRenderer {

	private static final long serialVersionUID = 20080415L;	
	
    public ChecBoxListCellRender() {
        super();
        this.setPreferredSize(new Dimension(50,100)); 

     }

    public Component getListCellRendererComponent(
      JList list,
      Object value,           
      int index,               
      boolean isSelected,      
      boolean cellHasFocus)    
    {
    	
        //CheckBoxListNode node=(CheckBoxListNode)value;
    	super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
    	if(value.toString().equals("孙伟")){
    		
    		this.setIcon(new ImageIcon("images/head1.jpg"));
    		
    	}else
    		this.setIcon(new ImageIcon("images/head2.jpg"));
      
      return this;
    }





}