gomp-20050608-branch/libjava/classpath/examples/gnu/classpath/examples/swing/ComboBoxDemo.java

   1 /* ComboBoxDemo.java -- An example showing various combo boxes in Swing.
   2    Copyright (C) 2005,  Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath examples.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20 */
  21
  22
  23 package gnu.classpath.examples.swing;
  24
  25 import java.awt.BorderLayout;
  26 import java.awt.Color;
  27 import java.awt.Component;
  28 import java.awt.Dimension;
  29 import java.awt.Font;
  30 import java.awt.GridLayout;
  31 import java.awt.event.ActionEvent;
  32 import java.awt.event.ActionListener;
  33
  34 import javax.swing.BorderFactory;
  35 import javax.swing.DefaultListCellRenderer;
  36 import javax.swing.Icon;
  37 import javax.swing.JButton;
  38 import javax.swing.JCheckBox;
  39 import javax.swing.JComboBox;
  40 import javax.swing.JFrame;
  41 import javax.swing.JList;
  42 import javax.swing.JPanel;
  43 import javax.swing.UIManager;
  44 import javax.swing.plaf.metal.MetalIconFactory;
  45
  46 /**
  47  * A simple demo showing various combo boxes in different states.
  48  */
  49 public class ComboBoxDemo
  50   extends JFrame
  51   implements ActionListener
  52 {
  53
  54   class CustomCellRenderer extends DefaultListCellRenderer
  55   {
  56     public Component getListCellRendererComponent(JList list,
  57                                               Object value,
  58                                               int index,
  59                                               boolean isSelected,
  60                                               boolean cellHasFocus)
  61     {
  62       DefaultListCellRenderer result = (DefaultListCellRenderer)
  63           super.getListCellRendererComponent(list, value, index, isSelected,
  64           cellHasFocus);
  65       Icon icon = (Icon) value;
  66       result.setIcon(icon);
  67       result.setText("Index = " + index);
  68       return result;
  69     }
  70   }
  71
  72   private JCheckBox comboState1;
  73   private JComboBox combo1;
  74   private JComboBox combo2;
  75
  76   private JCheckBox comboState2;
  77   private JComboBox combo3;
  78   private JComboBox combo4;
  79
  80   private JCheckBox comboState3;
  81   private JComboBox combo5;
  82   private JComboBox combo6;
  83
  84   private JCheckBox comboState4;
  85   private JComboBox combo7;
  86   private JComboBox combo8;
  87
  88   private JCheckBox comboState5;
  89   private JComboBox combo9;
  90   private JComboBox combo10;
  91
  92   private JCheckBox comboState6;
  93   private JComboBox combo11;
  94   private JComboBox combo12;
  95
  96   /**
  97    * Creates a new demo instance.
  98    *
  99    * @param title  the frame title.
 100    */
 101   public ComboBoxDemo(String title)
 102   {
 103     super(title);
 104     JPanel content = createContent();
 105     JPanel closePanel = new JPanel();
 106     JButton closeButton = new JButton("Close");
 107     closeButton.setActionCommand("CLOSE");
 108     closeButton.addActionListener(this);
 109     closePanel.add(closeButton);
 110     content.add(closePanel, BorderLayout.SOUTH);
 111     getContentPane().add(content);
 112   }
 113
 114   /**
 115    * Returns a panel with the demo content.  The panel
 116    * uses a BorderLayout(), and the BorderLayout.SOUTH area
 117    * is empty, to allow callers to add controls to the
 118    * bottom of the panel if they want to (a close button is
 119    * added if this demo is being run as a standalone demo).
 120    */
 121   JPanel createContent()
 122   {
 123     JPanel content = new JPanel(new BorderLayout());
 124     JPanel panel = new JPanel(new GridLayout(6, 1));
 125     panel.add(createPanel1());
 126     panel.add(createPanel2());
 127     panel.add(createPanel3());
 128     panel.add(createPanel4());
 129     panel.add(createPanel5());
 130     panel.add(createPanel6());
 131     content.add(panel);
 132     return content;
 133   }
 134
 135   private JPanel createPanel1()
 136   {
 137     JPanel panel = new JPanel(new BorderLayout());
 138     this.comboState1 = new JCheckBox("Enabled", true);
 139     this.comboState1.setActionCommand("COMBO_STATE1");
 140     this.comboState1.addActionListener(this);
 141     panel.add(this.comboState1, BorderLayout.EAST);
 142
 143     JPanel controlPanel = new JPanel();
 144     controlPanel.setBorder(BorderFactory.createTitledBorder("Regular: "));
 145     this.combo1 = new JComboBox(new Object[] {"Australia", "New Zealand",
 146             "England"});
 147
 148     this.combo2 = new JComboBox(new Object[] {"Australia", "New Zealand",
 149             "England"});
 150     this.combo2.setEditable(true);
 151
 152     controlPanel.add(combo1);
 153     controlPanel.add(combo2);
 154
 155     panel.add(controlPanel);
 156
 157     return panel;
 158   }
 159
 160   private JPanel createPanel2()
 161   {
 162     JPanel panel = new JPanel(new BorderLayout());
 163     this.comboState2 = new JCheckBox("Enabled", true);
 164     this.comboState2.setActionCommand("COMBO_STATE2");
 165     this.comboState2.addActionListener(this);
 166     panel.add(this.comboState2, BorderLayout.EAST);
 167
 168     JPanel controlPanel = new JPanel();
 169     controlPanel.setBorder(BorderFactory.createTitledBorder("Large Font: "));
 170     this.combo3 = new JComboBox(new Object[] {"Australia", "New Zealand",
 171             "England"});
 172     this.combo3.setFont(new Font("Dialog", Font.PLAIN, 20));
 173
 174     this.combo4 = new JComboBox(new Object[] {"Australia", "New Zealand",
 175             "England"});
 176     this.combo4.setEditable(true);
 177     this.combo4.setFont(new Font("Dialog", Font.PLAIN, 20));
 178
 179     controlPanel.add(combo3);
 180     controlPanel.add(combo4);
 181
 182     panel.add(controlPanel);
 183
 184     return panel;
 185   }
 186
 187   private JPanel createPanel3()
 188   {
 189     JPanel panel = new JPanel(new BorderLayout());
 190     this.comboState3 = new JCheckBox("Enabled", true);
 191     this.comboState3.setActionCommand("COMBO_STATE3");
 192     this.comboState3.addActionListener(this);
 193     panel.add(this.comboState3, BorderLayout.EAST);
 194
 195     JPanel controlPanel = new JPanel();
 196     controlPanel.setBorder(BorderFactory.createTitledBorder("Colored Background: "));
 197     this.combo5 = new JComboBox(new Object[] {"Australia", "New Zealand",
 198             "England"});
 199     this.combo5.setBackground(Color.yellow);
 200
 201     this.combo6 = new JComboBox(new Object[] {"Australia", "New Zealand",
 202             "England"});
 203     this.combo6.setEditable(true);
 204     this.combo6.setBackground(Color.yellow);
 205
 206     controlPanel.add(combo5);
 207     controlPanel.add(combo6);
 208
 209     panel.add(controlPanel);
 210
 211     return panel;
 212   }
 213
 214   /**
 215    * This panel contains combo boxes that are empty.
 216    *
 217    * @return A panel.
 218    */
 219   private JPanel createPanel4()
 220   {
 221     JPanel panel = new JPanel(new BorderLayout());
 222     this.comboState4 = new JCheckBox("Enabled", true);
 223     this.comboState4.setActionCommand("COMBO_STATE4");
 224     this.comboState4.addActionListener(this);
 225     panel.add(this.comboState4, BorderLayout.EAST);
 226
 227     JPanel controlPanel = new JPanel();
 228     controlPanel.setBorder(BorderFactory.createTitledBorder("Empty: "));
 229     this.combo7 = new JComboBox();
 230     this.combo8 = new JComboBox();
 231     this.combo8.setEditable(true);
 232
 233     controlPanel.add(combo7);
 234     controlPanel.add(combo8);
 235
 236     panel.add(controlPanel);
 237
 238     return panel;
 239   }
 240
 241   /**
 242    * This panel contains combo boxes that are narrow but contain long text
 243    * items.
 244    *
 245    * @return A panel.
 246    */
 247   private JPanel createPanel5()
 248   {
 249     JPanel panel = new JPanel(new BorderLayout());
 250     this.comboState5 = new JCheckBox("Enabled", true);
 251     this.comboState5.setActionCommand("COMBO_STATE5");
 252     this.comboState5.addActionListener(this);
 253     panel.add(this.comboState5, BorderLayout.EAST);
 254
 255     JPanel controlPanel = new JPanel();
 256     controlPanel.setBorder(BorderFactory.createTitledBorder("Narrow: "));
 257     this.combo9 = new JComboBox(new Object[] {
 258             "A really long item that will be truncated when displayed"});
 259     this.combo9.setPreferredSize(new Dimension(100, 30));
 260     this.combo10 = new JComboBox(new Object[] {
 261             "A really long item that will be truncated when displayed"});
 262     this.combo10.setPreferredSize(new Dimension(100, 30));
 263     this.combo10.setEditable(true);
 264
 265     controlPanel.add(combo9);
 266     controlPanel.add(combo10);
 267
 268     panel.add(controlPanel);
 269
 270     return panel;
 271   }
 272
 273   /**
 274    * This panel contains combo boxes with a custom renderer.
 275    *
 276    * @return A panel.
 277    */
 278   private JPanel createPanel6()
 279   {
 280     JPanel panel = new JPanel(new BorderLayout());
 281     this.comboState6 = new JCheckBox("Enabled", true);
 282     this.comboState6.setActionCommand("COMBO_STATE6");
 283     this.comboState6.addActionListener(this);
 284     panel.add(this.comboState6, BorderLayout.EAST);
 285
 286     JPanel controlPanel = new JPanel();
 287     controlPanel.setBorder(BorderFactory.createTitledBorder("Custom Renderer: "));
 288     this.combo11 = new JComboBox(new Object[] {
 289             MetalIconFactory.getFileChooserHomeFolderIcon(),
 290             MetalIconFactory.getFileChooserNewFolderIcon()});
 291     this.combo11.setPreferredSize(new Dimension(100, 30));
 292     this.combo11.setRenderer(new CustomCellRenderer());
 293     this.combo12 = new JComboBox(new Object[] {
 294             MetalIconFactory.getFileChooserHomeFolderIcon(),
 295             MetalIconFactory.getFileChooserNewFolderIcon()});
 296     this.combo12.setPreferredSize(new Dimension(100, 30));
 297     this.combo12.setRenderer(new CustomCellRenderer());
 298     this.combo12.setEditable(true);
 299
 300     controlPanel.add(combo11);
 301     controlPanel.add(combo12);
 302
 303     panel.add(controlPanel);
 304
 305     return panel;
 306   }
 307
 308   public void actionPerformed(ActionEvent e)
 309   {
 310     if (e.getActionCommand().equals("COMBO_STATE1"))
 311     {
 312       combo1.setEnabled(comboState1.isSelected());
 313       combo2.setEnabled(comboState1.isSelected());
 314     }
 315     else if (e.getActionCommand().equals("COMBO_STATE2"))
 316     {
 317       combo3.setEnabled(comboState2.isSelected());
 318       combo4.setEnabled(comboState2.isSelected());
 319     }
 320     else if (e.getActionCommand().equals("COMBO_STATE3"))
 321     {
 322       combo5.setEnabled(comboState3.isSelected());
 323       combo6.setEnabled(comboState3.isSelected());
 324     }
 325     else if (e.getActionCommand().equals("COMBO_STATE4"))
 326     {
 327       combo7.setEnabled(comboState4.isSelected());
 328       combo8.setEnabled(comboState4.isSelected());
 329     }
 330     else if (e.getActionCommand().equals("COMBO_STATE5"))
 331     {
 332       combo9.setEnabled(comboState5.isSelected());
 333       combo10.setEnabled(comboState5.isSelected());
 334     }
 335     else if (e.getActionCommand().equals("COMBO_STATE6"))
 336     {
 337       combo11.setEnabled(comboState6.isSelected());
 338       combo12.setEnabled(comboState6.isSelected());
 339     }
 340     else if (e.getActionCommand().equals("CLOSE"))
 341     {
 342       System.exit(0);
 343     }
 344   }
 345
 346   public static void main(String[] args)
 347   {
 348     try
 349     {
 350       UIManager.setLookAndFeel(new javax.swing.plaf.metal.MetalLookAndFeel());
 351     }
 352     catch (Exception e) {
 353         e.printStackTrace();
 354     }
 355     ComboBoxDemo app = new ComboBoxDemo("ComboBox Demo");
 356     app.pack();
 357     app.setVisible(true);
 358   }
 359
 360 }