001    /* MouseDragGestureRecognizer.java --
002       Copyright (C) 2002, 2005  Free Software Foundation, Inc.
003    
004    This file is part of GNU Classpath.
005    
006    GNU Classpath is free software; you can redistribute it and/or modify
007    it under the terms of the GNU General Public License as published by
008    the Free Software Foundation; either version 2, or (at your option)
009    any later version.
010    
011    GNU Classpath is distributed in the hope that it will be useful, but
012    WITHOUT ANY WARRANTY; without even the implied warranty of
013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014    General Public License for more details.
015    
016    You should have received a copy of the GNU General Public License
017    along with GNU Classpath; see the file COPYING.  If not, write to the
018    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019    02110-1301 USA.
020    
021    Linking this library statically or dynamically with other modules is
022    making a combined work based on this library.  Thus, the terms and
023    conditions of the GNU General Public License cover the whole
024    combination.
025    
026    As a special exception, the copyright holders of this library give you
027    permission to link this library with independent modules to produce an
028    executable, regardless of the license terms of these independent
029    modules, and to copy and distribute the resulting executable under
030    terms of your choice, provided that you also meet, for each linked
031    independent module, the terms and conditions of the license of that
032    module.  An independent module is a module which is not derived from
033    or based on this library.  If you modify this library, you may extend
034    this exception to your version of the library, but you are not
035    obligated to do so.  If you do not wish to do so, delete this
036    exception statement from your version. */
037    
038    package java.awt.dnd;
039    
040    import java.awt.Component;
041    import java.awt.event.MouseEvent;
042    import java.awt.event.MouseListener;
043    import java.awt.event.MouseMotionListener;
044    
045    /**
046     * @author Michael Koch (konqueror@gmx.de)
047     */
048    public abstract class MouseDragGestureRecognizer
049      extends DragGestureRecognizer
050      implements MouseListener, MouseMotionListener
051    {
052      /**
053       * Creates a <code>MouseDragGestureRecognizer</code> object.
054       */
055      protected MouseDragGestureRecognizer (DragSource ds, Component c, int act,
056                                            DragGestureListener dgl)
057      {
058        super (ds, c, act, dgl);
059      }
060    
061      /**
062       * Creates a <code>MouseDragGestureRecognizer</code> object.
063       */
064      protected MouseDragGestureRecognizer (DragSource ds, Component c, int act)
065      {
066        super (ds, c, act);
067      }
068    
069      /**
070       * Creates a <code>MouseDragGestureRecognizer</code> object.
071       */
072      protected MouseDragGestureRecognizer (DragSource ds, Component c)
073      {
074        super (ds, c);
075      }
076    
077      /**
078       * Creates a <code>MouseDragGestureRecognizer</code> object.
079       */
080      protected MouseDragGestureRecognizer (DragSource ds)
081      {
082        super (ds);
083      }
084    
085      protected void registerListeners ()
086      {
087        component.addMouseListener (this);
088        component.addMouseMotionListener (this);
089      }
090    
091      protected void unregisterListeners ()
092      {
093        component.removeMouseListener (this);
094        component.removeMouseMotionListener (this);
095      }
096    
097      public void mouseClicked (MouseEvent e)
098      {
099        // Do nothing in here by default.
100      }
101    
102      public void mousePressed (MouseEvent e)
103      {
104        // Do nothing in here by default.
105      }
106    
107      public void mouseReleased (MouseEvent e)
108      {
109        // Do nothing in here by default.
110      }
111    
112      public void mouseEntered (MouseEvent e)
113      {
114        // Do nothing in here by default.
115      }
116    
117      public void mouseExited (MouseEvent e)
118      {
119        // Do nothing in here by default.
120      }
121    
122      public void mouseDragged (MouseEvent e)
123      {
124        // Do nothing in here by default.
125      }
126    
127      public void mouseMoved (MouseEvent e)
128      {
129        // Do nothing in here by default.
130      }
131    } // class MouseDragGestureRecognizer