Subversion Repositories openrisc

/* ComboBoxDemo.java -- An example showing various combo boxes in Swing.

   Copyright (C) 2005, 2006,  Free Software Foundation, Inc.

This file is part of GNU Classpath examples.

GNU Classpath is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU Classpath is distributed in the hope that it will be useful, but

WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

General Public License for more details.

You should have received a copy of the GNU General Public License

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301 USA.

*/

package gnu.classpath.examples.swing;

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Component;

import java.awt.Dimension;

import java.awt.Font;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.BorderFactory;

import javax.swing.DefaultListCellRenderer;

import javax.swing.Icon;

import javax.swing.JButton;

import javax.swing.JCheckBox;

import javax.swing.JComboBox;

import javax.swing.JComponent;

import javax.swing.JFrame;

import javax.swing.JList;

import javax.swing.JPanel;

import javax.swing.SwingUtilities;

import javax.swing.plaf.metal.MetalIconFactory;

/**

 * A simple demo showing various combo boxes in different states.

 */

public class ComboBoxDemo

  extends JPanel

  implements ActionListener

{

  class CustomCellRenderer extends DefaultListCellRenderer

  {

    public Component getListCellRendererComponent(JList list,

                                              Object value,

                                              int index,

                                              boolean isSelected,

                                              boolean cellHasFocus)

    {

      DefaultListCellRenderer result = (DefaultListCellRenderer)

          super.getListCellRendererComponent(list, value, index, isSelected,

          cellHasFocus);

      Icon icon = (Icon) value;

      result.setIcon(icon);

      result.setText("Index = " + index);

      return result;

    }

  }

  private JCheckBox comboState1;

  private JComboBox combo1;

  private JComboBox combo2;

  private JCheckBox comboState2;

  private JComboBox combo3;

  private JComboBox combo4;

  private JCheckBox comboState3;

  private JComboBox combo5;

  private JComboBox combo6;

  private JCheckBox comboState4;

  private JComboBox combo7;

  private JComboBox combo8;

  private JCheckBox comboState5;

  private JComboBox combo9;

  private JComboBox combo10;

  private JCheckBox comboState6;

  private JComboBox combo11;

  private JComboBox combo12;

  /**

   * Creates a new demo instance.

   */

  public ComboBoxDemo()

  {

    super();

    createContent();

  }

  /**

   * When the demo is run independently, the frame is displayed, so we should

   * initialise the content panel (including the demo content and a close

   * button).  But when the demo is run as part of the Swing activity board,

   * only the demo content panel is used, the frame itself is never displayed,

   * so we can avoid this step.

   */

  void initFrameContent()

  {

    JPanel closePanel = new JPanel();

    JButton closeButton = new JButton("Close");

    closeButton.setActionCommand("CLOSE");

    closeButton.addActionListener(this);

    closePanel.add(closeButton);

    add(closePanel, BorderLayout.SOUTH);

  }

  /**

   * Returns a panel with the demo content.  The panel

   * uses a BorderLayout(), and the BorderLayout.SOUTH area

   * is empty, to allow callers to add controls to the

   * bottom of the panel if they want to (a close button is

   * added if this demo is being run as a standalone demo).

   */

  private void createContent()

  {

    setLayout(new BorderLayout());

    JPanel panel = new JPanel(new GridLayout(6, 1));

    panel.add(createPanel1());

    panel.add(createPanel2());

    panel.add(createPanel3());

    panel.add(createPanel4());

    panel.add(createPanel5());

    panel.add(createPanel6());

    add(panel);

  }

  private JPanel createPanel1()

  {

    JPanel panel = new JPanel(new BorderLayout());

    this.comboState1 = new JCheckBox("Enabled", true);

    this.comboState1.setActionCommand("COMBO_STATE1");

    this.comboState1.addActionListener(this);

    panel.add(this.comboState1, BorderLayout.EAST);

    JPanel controlPanel = new JPanel();

    controlPanel.setBorder(BorderFactory.createTitledBorder("Regular: "));

    this.combo1 = new JComboBox(new Object[] {"Australia", "New Zealand",

            "England"});

    this.combo2 = new JComboBox(new Object[] {"Australia", "New Zealand",

            "England"});

    this.combo2.setEditable(true);

    controlPanel.add(combo1);

    controlPanel.add(combo2);

    panel.add(controlPanel);

    return panel;

  }

  private JPanel createPanel2()

  {

    JPanel panel = new JPanel(new BorderLayout());

    this.comboState2 = new JCheckBox("Enabled", true);

    this.comboState2.setActionCommand("COMBO_STATE2");

    this.comboState2.addActionListener(this);

    panel.add(this.comboState2, BorderLayout.EAST);

    JPanel controlPanel = new JPanel();

    controlPanel.setBorder(BorderFactory.createTitledBorder("Large Font: "));

    this.combo3 = new JComboBox(new Object[] {"Australia", "New Zealand",

            "England"});

    this.combo3.setFont(new Font("Dialog", Font.PLAIN, 20));

    this.combo4 = new JComboBox(new Object[] {"Australia", "New Zealand",

            "England"});

    this.combo4.setEditable(true);

    this.combo4.setFont(new Font("Dialog", Font.PLAIN, 20));

    controlPanel.add(combo3);

    controlPanel.add(combo4);

    panel.add(controlPanel);

    return panel;

  }

  private JPanel createPanel3()

  {

    JPanel panel = new JPanel(new BorderLayout());

    this.comboState3 = new JCheckBox("Enabled", true);

    this.comboState3.setActionCommand("COMBO_STATE3");

    this.comboState3.addActionListener(this);

    panel.add(this.comboState3, BorderLayout.EAST);

    JPanel controlPanel = new JPanel();

    controlPanel.setBorder(BorderFactory.createTitledBorder("Colored Background: "));

    this.combo5 = new JComboBox(new Object[] {"Australia", "New Zealand",

            "England"});

    this.combo5.setBackground(Color.yellow);

    this.combo6 = new JComboBox(new Object[] {"Australia", "New Zealand",

            "England"});

    this.combo6.setEditable(true);

    this.combo6.setBackground(Color.yellow);

    controlPanel.add(combo5);

    controlPanel.add(combo6);

    panel.add(controlPanel);

    return panel;

  }

  /**

   * This panel contains combo boxes that are empty.

   *

   * @return A panel.

   */

  private JPanel createPanel4()

  {

    JPanel panel = new JPanel(new BorderLayout());

    this.comboState4 = new JCheckBox("Enabled", true);

    this.comboState4.setActionCommand("COMBO_STATE4");

    this.comboState4.addActionListener(this);

    panel.add(this.comboState4, BorderLayout.EAST);

    JPanel controlPanel = new JPanel();

    controlPanel.setBorder(BorderFactory.createTitledBorder("Empty: "));

    this.combo7 = new JComboBox();

    this.combo8 = new JComboBox();

    this.combo8.setEditable(true);

    controlPanel.add(combo7);

    controlPanel.add(combo8);

    panel.add(controlPanel);

    return panel;

  }

  /**

   * This panel contains combo boxes that are narrow but contain long text

   * items.

   *

   * @return A panel.

   */

  private JPanel createPanel5()

  {

    JPanel panel = new JPanel(new BorderLayout());

    this.comboState5 = new JCheckBox("Enabled", true);

    this.comboState5.setActionCommand("COMBO_STATE5");

    this.comboState5.addActionListener(this);

    panel.add(this.comboState5, BorderLayout.EAST);

    JPanel controlPanel = new JPanel();

    controlPanel.setBorder(BorderFactory.createTitledBorder("Narrow: "));

    this.combo9 = new JComboBox(new Object[] {

            "A really long item that will be truncated when displayed"});

    this.combo9.setPreferredSize(new Dimension(100, 30));

    this.combo10 = new JComboBox(new Object[] {

            "A really long item that will be truncated when displayed"});

    this.combo10.setPreferredSize(new Dimension(100, 30));

    this.combo10.setEditable(true);

    controlPanel.add(combo9);

    controlPanel.add(combo10);

    panel.add(controlPanel);

    return panel;

  }

  /**

   * This panel contains combo boxes with a custom renderer.

   *

   * @return A panel.

   */

  private JPanel createPanel6()

  {

    JPanel panel = new JPanel(new BorderLayout());

    this.comboState6 = new JCheckBox("Enabled", true);

    this.comboState6.setActionCommand("COMBO_STATE6");

    this.comboState6.addActionListener(this);

    panel.add(this.comboState6, BorderLayout.EAST);

    JPanel controlPanel = new JPanel();

    controlPanel.setBorder(BorderFactory.createTitledBorder("Custom Renderer: "));

    this.combo11 = new JComboBox(new Object[] {

            MetalIconFactory.getFileChooserHomeFolderIcon(),

            MetalIconFactory.getFileChooserNewFolderIcon()});

    this.combo11.setPreferredSize(new Dimension(100, 30));

    this.combo11.setRenderer(new CustomCellRenderer());

    this.combo12 = new JComboBox(new Object[] {

            MetalIconFactory.getFileChooserHomeFolderIcon(),

            MetalIconFactory.getFileChooserNewFolderIcon()});

    this.combo12.setPreferredSize(new Dimension(100, 30));

    this.combo12.setRenderer(new CustomCellRenderer());

    this.combo12.setEditable(true);

    controlPanel.add(combo11);

    controlPanel.add(combo12);

    panel.add(controlPanel);

    return panel;

  }

  public void actionPerformed(ActionEvent e)

  {

    if (e.getActionCommand().equals("COMBO_STATE1"))

    {

      combo1.setEnabled(comboState1.isSelected());

      combo2.setEnabled(comboState1.isSelected());

    }

    else if (e.getActionCommand().equals("COMBO_STATE2"))

    {

      combo3.setEnabled(comboState2.isSelected());

      combo4.setEnabled(comboState2.isSelected());

    }

    else if (e.getActionCommand().equals("COMBO_STATE3"))

    {

      combo5.setEnabled(comboState3.isSelected());

      combo6.setEnabled(comboState3.isSelected());

    }

    else if (e.getActionCommand().equals("COMBO_STATE4"))

    {

      combo7.setEnabled(comboState4.isSelected());

      combo8.setEnabled(comboState4.isSelected());

    }

    else if (e.getActionCommand().equals("COMBO_STATE5"))

    {

      combo9.setEnabled(comboState5.isSelected());

      combo10.setEnabled(comboState5.isSelected());

    }

    else if (e.getActionCommand().equals("COMBO_STATE6"))

    {

      combo11.setEnabled(comboState6.isSelected());

      combo12.setEnabled(comboState6.isSelected());

    }

    else if (e.getActionCommand().equals("CLOSE"))

    {

      System.exit(0);

    }

  }

  public static void main(String[] args)

  {

    SwingUtilities.invokeLater

    (new Runnable()

     {

       public void run()

       {

         ComboBoxDemo app = new ComboBoxDemo();

         app.initFrameContent();

         JFrame frame = new JFrame();

         frame.getContentPane().add(app);

         frame.pack();

         frame.setVisible(true);

       }

     });

  }

  /**

   * Returns a DemoFactory that creates a ComboBoxDemo.

   *

   * @return a DemoFactory that creates a ComboBoxDemo

   */

  public static DemoFactory createDemoFactory()

  {

    return new DemoFactory()

    {

      public JComponent createDemo()

      {

        return new ComboBoxDemo();

      }

    };

  }

}