CardLayoutTest.java

package com.clearlyspam23.GLE.debug;

import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.EventQueue;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;

public class CardLayoutTest extends JFrame implements ItemListener{

	private JPanel contentPane;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					CardLayoutTest frame = new CardLayoutTest();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public CardLayoutTest() {
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 450, 300);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		contentPane.setLayout(new BorderLayout(0, 0));
		setContentPane(contentPane);
		JPanel comboBoxPane = new JPanel(); //use FlowLayout
        String comboBoxItems[] = { BUTTONPANEL, TEXTPANEL };
        JComboBox cb = new JComboBox(comboBoxItems);
        cb.setEditable(false);
        cb.addItemListener(this);
        comboBoxPane.add(cb);
         
        //Create the "cards".
        JPanel card1 = new JPanel();
        card1.add(new JButton("Button 1"));
        card1.add(new JButton("Button 2"));
        card1.add(new JButton("Button 3"));
         
        JPanel card2 = new JPanel();
        card2.add(new JTextField("TextField", 20));
         
        //Create the panel that contains the "cards".
        cards = new JPanel(new CardLayout());
        cards.add(card1, BUTTONPANEL);
        cards.add(card2, TEXTPANEL);
         
        contentPane.add(comboBoxPane, BorderLayout.PAGE_START);
        contentPane.add(cards, BorderLayout.CENTER);
	}
	
	JPanel cards; //a panel that uses CardLayout
    final static String BUTTONPANEL = "Card with JButtons";
    final static String TEXTPANEL = "Card with JTextField";
     
//    public void addComponentToPane(Container pane) {
//        //Put the JComboBox in a JPanel to get a nicer look.
//        
//    }
     
    public void itemStateChanged(ItemEvent evt) {
        CardLayout cl = (CardLayout)(cards.getLayout());
        cl.show(cards, (String)evt.getItem());
    }
     
    /**
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event dispatch thread.
     */
//    private static void createAndShowGUI() {
//        //Create and set up the window.
//        JFrame frame = new JFrame("CardLayoutDemo");
//        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//         
//        //Create and set up the content pane.
//        CardLayoutTest demo = new CardLayoutTest();
//        demo.addComponentToPane(frame.getContentPane());
//         
//        //Display the window.
//        frame.pack();
//        frame.setVisible(true);
//    }

}