001    /* DnDConstants.java -- constants for drag-and-drop operations
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    
039    package java.awt.dnd;
040    
041    /**
042     * This class contains various constants used in drag-and-drop operations.
043     * Why it is not an interface is beyond me.
044     *
045     * @author Eric Blake (ebb9@email.byu.edu)
046     * @since 1.2
047     * @status updated to 1.4
048     */
049    public final class DnDConstants
050    {
051      /** No action takes place. */
052      public static final int ACTION_NONE = 0;
053    
054      /** The copy action. */
055      public static final int ACTION_COPY = 1;
056    
057      /** The move action. */
058      public static final int ACTION_MOVE = 2;
059    
060      /** Either a copy or a move. */
061      public static final int ACTION_COPY_OR_MOVE = 3;
062    
063      /**
064       * A link action. This does not copy or move, but creates a reference back
065       * to the original. However, since platforms differ on how a reference should
066       * behave, this action is not recommended for common use.
067       */
068      public static final int ACTION_LINK = 1073741824;
069    
070      /** A synonym for {@link #ACTION_LINK}. */
071      public static final int ACTION_REFERENCE = ACTION_LINK;
072    
073      private DnDConstants()
074      {
075        // Do nothing here.
076      }
077    }