JComboBox drop-down box how display picture options ?

[code = java] [/ codeprivate class ComboBoxRenderer extends JLabel implements ListCellRenderer {

@ Override
public Component getListCellRendererComponent (JList list, Object value,
int index, boolean isSelected, boolean cellHasFocus) {

/ / check if this cell represents the current DnD drop location
JList.DropLocation dropLocation = myList.getDropLocation ();
if (dropLocation! = null
&& ! dropLocation.isInsert ()
&& dropLocation.getIndex () == index) {

/ / check if this cell is selected
} else if (isSelected) {

} else {

};

return this;
}

I want to be a drop-down selection box , which the option is in the form of pictures how to write ? Write a Icon [] array of objects stored pictures , how to appear in the drop-down box inside ? How to write the above code ?
------ Solution ---------------------------------------- ----
http://www.java2s.com/Tutorial/ Java/0240__Swing/Comboboxcellrenderer.htm
------ Solution ----------------------------- ---------------
achieve ListCellBenderer interface to draw a list of unit
http://www.blogjava.net/zeyuphoenix/archive/2010 / 04/12/318014.html
------ Solution ---------------------------- ----------------
JCombobox default drop-down display and display items are text , in order to display additional content such as pictures or something more complex , you need to set up a new Renderer, JCombobox of Renderer need to implement the interface ListCellRenderer .
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you made reference to the class content, written in the case. . . Or not . . . How to change ?

public class mousergister extends JPanel {
  	JPanel jp;
  	JComboBox setImg;
  	ComboBoxRenderer renderer;
  	
  	public static void main(String[] args) {
  		new mousergister();
  	}
  
  	public mousergister() {
  		BaseFrame bf=new BaseFrame("用户注册");
  		bf.add(this);				
  		this.setLayout(null);
  
  
  		renderer = new ComboBoxRenderer();
  		renderer.setPreferredSize(new Dimension(100, 50));
  		
  		Object elements[][] = {
  		        { new MyIcon("images/1.jpg",this)},
  		        { new MyIcon("images/2.gif",this) },
  		        { new MyIcon("images/3.jpg",this)},
  		        };
  
  		setImg = new JComboBox(elements);
  		setImg.setRenderer(renderer);			
  		setImg.setBounds(120, 25, 75, 60);
  		add(setImg);
  
  		bf.setLocation(500, 100);// 设置窗口在屏幕的位置
  		bf.setSize(320, 420);
  		bf.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
  		bf.setResizable(false);// 设置游戏窗口大小不可改变
  		bf.setVisible(true);
  
  	}
  
  	private class ComboBoxRenderer extends JLabel implements ListCellRenderer {
  
  		// 这样要是实现接口的方法：
  
  		/*
  		 * 
  		 * This method finds the image and text corresponding to the selected
  		 * 
  		 * value and returns the label, set up to display the text and image.
  		 */
  
  		@Override
  		public Component getListCellRendererComponent(JList list, Object value,
  				int index, boolean isSelected, boolean cellHasFocus) {
  
  			ImageIcon image=null;
  
  			 if (value instanceof Object[]) {
  				 Object[] values = (Object[]) value;			     
  			      image = (ImageIcon)values[0];
  			    }
  			    if (image != null) {
  			    	
  			      this.setIcon(image);
  			    }
  			    return this;
  			  }			 
  	}
  		
  	private class MyIcon extends ImageIcon{
  		private Image m;
  		private String str;
  		private mousergister jp;
  			
  		public MyIcon(String str,mousergister jp) {
  			Toolkit tool;
  			tool = jp.renderer.getToolkit();
  			m = tool.getImage(str);
  		  }
  		 public void paintIcon(Component lab, Graphics g){
  			lab=jp.renderer;
  			g.drawImage(m, 20, 20, lab);
  			
  		} 	
   }
  }

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problems have been solved , thank you everyone to help .