libjava/javax/swing/plaf/basic/BasicButtonListener.java

   1 /* BasicButtonListener.java --
   2    Copyright (C) 2004 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   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., 59 Temple Place, Suite 330, Boston, MA
  19 02111-1307 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38
  39 package javax.swing.plaf.basic;
  40
  41 import java.awt.event.ActionEvent;
  42 import java.awt.event.FocusEvent;
  43 import java.awt.event.FocusListener;
  44 import java.awt.event.InputEvent;
  45 import java.awt.event.MouseEvent;
  46 import java.awt.event.MouseListener;
  47 import java.awt.event.MouseMotionListener;
  48 import java.beans.PropertyChangeEvent;
  49 import java.beans.PropertyChangeListener;
  50
  51 import javax.swing.AbstractAction;
  52 import javax.swing.AbstractButton;
  53 import javax.swing.ButtonModel;
  54 import javax.swing.JComponent;
  55 import javax.swing.event.ChangeEvent;
  56 import javax.swing.event.ChangeListener;
  57
  58 public class BasicButtonListener
  59   implements MouseListener, MouseMotionListener, FocusListener,
  60              ChangeListener, PropertyChangeListener
  61 {
  62   public BasicButtonListener(AbstractButton b)
  63   {
  64     // Do nothing here.
  65   }
  66
  67   public void propertyChange(PropertyChangeEvent e)
  68   {
  69   }
  70
  71   protected void checkOpacity(AbstractButton b)
  72   {
  73   }
  74
  75   public void focusGained(FocusEvent e)
  76   {
  77     if (e.getSource() instanceof AbstractButton)
  78       {
  79         AbstractButton button = (AbstractButton) e.getSource();
  80         if (button.isFocusPainted())
  81           button.repaint();
  82       }
  83   }
  84
  85   public void focusLost(FocusEvent e)
  86   {
  87     if (e.getSource() instanceof AbstractButton)
  88       {
  89         AbstractButton button = (AbstractButton) e.getSource();
  90         ButtonModel model = button.getModel();
  91         model.setArmed(false);
  92
  93         if (button.isFocusPainted())
  94           button.repaint();
  95       }
  96   }
  97
  98   public void installKeyboardActions(JComponent c)
  99   {
 100     c.getActionMap().put("pressed",
 101                          new AbstractAction()
 102                          {
 103                            public void actionPerformed(ActionEvent e)
 104                            {
 105                              AbstractButton button = (AbstractButton) e.getSource();
 106                              ButtonModel model = button.getModel();
 107                              // It is important that these transitions happen in this order.
 108                              model.setArmed(true);
 109                              model.setPressed(true);
 110                            }
 111                          });
 112
 113     c.getActionMap().put("released",
 114                          new AbstractAction()
 115                          {
 116                            public void actionPerformed(ActionEvent e)
 117                            {
 118                              AbstractButton button = (AbstractButton) e.getSource();
 119                              ButtonModel model = button.getModel();
 120                              // It is important that these transitions happen in this order.
 121                              model.setPressed(false);
 122                              model.setArmed(false);
 123                            }
 124                        });
 125   }
 126
 127   public void uninstallKeyboardActions(JComponent c)
 128   {
 129     c.getActionMap().put("pressed", null);
 130     c.getActionMap().put("released", null);
 131   }
 132
 133   public void stateChanged(ChangeEvent e)
 134   {
 135   }
 136
 137   public void mouseMoved(MouseEvent e)
 138   {
 139   }
 140
 141   public void mouseDragged(MouseEvent e)
 142   {
 143   }
 144
 145   public void mouseClicked(MouseEvent e)
 146   {
 147   }
 148
 149   /**
 150    * Accept a mouse press event and arm the button.
 151    *
 152    * @param e The mouse press event to accept
 153    */
 154   public void mousePressed(MouseEvent e)
 155   {
 156     if (e.getSource() instanceof AbstractButton)
 157       {
 158         AbstractButton button = (AbstractButton) e.getSource();
 159         ButtonModel model = button.getModel();
 160         if ((e.getModifiersEx() & InputEvent.BUTTON1_DOWN_MASK) != 0)
 161           {
 162             // It is important that these transitions happen in this order.
 163             model.setArmed(true);
 164             model.setPressed(true);
 165           }
 166       }
 167   }
 168
 169   /**
 170    * Accept a mouse release event and set the button's
 171    * "pressed" property to <code>true</code>, if the model
 172    * is armed. If the model is not armed, ignore the event.
 173    *
 174    * @param e The mouse release event to accept
 175    */
 176   public void mouseReleased(MouseEvent e)
 177   {
 178     if (e.getSource() instanceof AbstractButton)
 179       {
 180         AbstractButton button = (AbstractButton) e.getSource();
 181         ButtonModel model = button.getModel();
 182         if ((e.getModifiersEx() & InputEvent.BUTTON1_DOWN_MASK) != 0)
 183           {
 184             // It is important that these transitions happen in this order.
 185             model.setPressed(false);
 186             model.setArmed(false);
 187           }
 188       }
 189   }
 190
 191   /**
 192    * Accept a mouse enter event and set the button's "rollover" property to
 193    * <code>true</code>, if the button's "rolloverEnabled" property is
 194    * <code>true</code>. If the button is currently armed and the mouse
 195    * button is not held down, this enter event will also disarm the model.
 196    *
 197    * @param e The mouse enter event to accept
 198    */
 199   public void mouseEntered(MouseEvent e)
 200   {
 201     if (e.getSource() instanceof AbstractButton)
 202       {
 203         AbstractButton button = (AbstractButton) e.getSource();
 204         ButtonModel model = button.getModel();
 205         if (button.isRolloverEnabled())
 206           model.setRollover(true);
 207
 208         if (model.isPressed()
 209             && (e.getModifiersEx() & InputEvent.BUTTON1_DOWN_MASK) != 0)
 210           model.setArmed(true);
 211         else
 212           model.setArmed(false);
 213       }
 214   }
 215
 216   /**
 217    * Accept a mouse exit event and set the button's model's "rollover"
 218    * property to <code>false</code>, if it's "rolloverEnabled" property is
 219    * <code>true</code>. Also disarm the button.
 220    *
 221    * @param e The mouse exit event to accept
 222    */
 223   public void mouseExited(MouseEvent e)
 224   {
 225     if (e.getSource() instanceof AbstractButton)
 226       {
 227         AbstractButton button = (AbstractButton) e.getSource();
 228         ButtonModel model = button.getModel();
 229         if (button.isRolloverEnabled())
 230           model.setRollover(false);
 231         model.setArmed(false);
 232       }
 233   }
 234 }