Create a JSpinner with customized content for icons in Java

/*//from  w ww .j  av  a  2s.  c  o m
 Java Swing, 2nd Edition
 By Marc Loy, Robert Eckstein, Dave Wood, James Elliott, Brian Cole
 ISBN: 0-596-00408-7
 Publisher: O'Reilly 
 */

// IconSpinner.java
//An implementation of JSpinner with customized content--icons in this case.
//A standard spinner model is used with a custom editor (IconEditor.java).
//

import java.awt.Container;
import java.awt.GridLayout;

import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JSpinner;
import javax.swing.SpinnerListModel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class Main extends JFrame {

  public Main() {
    super("JSpinner Icon Test");
    setSize(300, 80);
    setDefaultCloseOperation(EXIT_ON_CLOSE);

    Container c = getContentPane();
    c.setLayout(new GridLayout(0, 2));

    Icon nums[] = new Icon[] { new ImageIcon("1.gif"), new ImageIcon("2.gif"),
        new ImageIcon("3.gif"), new ImageIcon("4.gif"), new ImageIcon("5.gif"),
        new ImageIcon("6.gif") };
    JSpinner s1 = new JSpinner(new SpinnerListModel(nums));
    s1.setEditor(new IconEditor(s1));
    c.add(new JLabel(" Icon Spinner"));
    c.add(s1);

    setVisible(true);
  }

  public static void main(String args[]) {
    new Main();
  }
}

class IconEditor extends JLabel implements ChangeListener {

  JSpinner spinner;

  Icon icon;

  public IconEditor(JSpinner s) {
    super((Icon) s.getValue(), CENTER);
    icon = (Icon) s.getValue();
    spinner = s;
    spinner.addChangeListener(this);
  }

  public void stateChanged(ChangeEvent ce) {
    icon = (Icon) spinner.getValue();
    setIcon(icon);
  }

  public JSpinner getSpinner() {
    return spinner;
  }

  public Icon getIcon() {
    return icon;
  }
}