001/* DropTargetDropEvent.java --
002   Copyright (C) 2002, 2006 Free Software Foundation, Inc.
003
004This file is part of GNU Classpath.
005
006GNU Classpath is free software; you can redistribute it and/or modify
007it under the terms of the GNU General Public License as published by
008the Free Software Foundation; either version 2, or (at your option)
009any later version.
010
011GNU Classpath is distributed in the hope that it will be useful, but
012WITHOUT ANY WARRANTY; without even the implied warranty of
013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014General Public License for more details.
015
016You should have received a copy of the GNU General Public License
017along with GNU Classpath; see the file COPYING.  If not, write to the
018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
01902110-1301 USA.
020
021Linking this library statically or dynamically with other modules is
022making a combined work based on this library.  Thus, the terms and
023conditions of the GNU General Public License cover the whole
024combination.
025
026As a special exception, the copyright holders of this library give you
027permission to link this library with independent modules to produce an
028executable, regardless of the license terms of these independent
029modules, and to copy and distribute the resulting executable under
030terms of your choice, provided that you also meet, for each linked
031independent module, the terms and conditions of the license of that
032module.  An independent module is a module which is not derived from
033or based on this library.  If you modify this library, you may extend
034this exception to your version of the library, but you are not
035obligated to do so.  If you do not wish to do so, delete this
036exception statement from your version. */
037
038package java.awt.dnd;
039
040import java.awt.Point;
041import java.awt.datatransfer.DataFlavor;
042import java.awt.datatransfer.Transferable;
043import java.util.List;
044
045/**
046 * @since 1.2
047 */
048public class DropTargetDropEvent extends DropTargetEvent
049{
050  /**
051   * Compatible with JDK 1.2+
052   */
053  private static final long serialVersionUID = -1721911170440459322L;
054
055  private final int dropAction;
056  private final int actions;
057  private final Point location;
058  private final boolean isLocalTx;
059  
060  /**
061   * Initializes a <code>DropTargetDropEvent</code>. By default this constructor
062   * assumes that the target is not int same JVM.
063   *
064   * @exception IllegalArgumentException If dropAction is not one of DnDConstants,
065   * actions is not a bitwise mask of DnDConstants, or dtc is null.
066   * @exception NullPointerException If location is null.
067   */
068  public DropTargetDropEvent(DropTargetContext dtc, Point location,
069                             int dropAction, int actions)
070  {
071    this(dtc, location, dropAction, actions, false);
072  }
073
074  /**
075   * Initializes a <code>DropTargetDropEvent</code>.
076   *
077   * @exception IllegalArgumentException If dropAction is not one of DnDConstants,
078   * actions is not a bitwise mask of DnDConstants, or dtc is null.
079   * @exception NullPointerException If location is null.
080   */
081  public DropTargetDropEvent(DropTargetContext dtc, Point location,
082                             int dropAction, int actions, boolean isLocalTx)
083  {
084    super(dtc);
085
086    if (location == null)
087      throw new NullPointerException();
088
089    if (dtc == null)
090      throw new IllegalArgumentException();
091
092    if (dropAction != DnDConstants.ACTION_NONE
093        && dropAction != DnDConstants.ACTION_COPY
094        && dropAction != DnDConstants.ACTION_MOVE
095        && dropAction != DnDConstants.ACTION_COPY_OR_MOVE
096        && dropAction != DnDConstants.ACTION_LINK
097        && dropAction != DnDConstants.ACTION_REFERENCE)
098      throw new IllegalArgumentException();
099
100    int actionsMask = DnDConstants.ACTION_NONE
101                      | DnDConstants.ACTION_COPY
102                      | DnDConstants.ACTION_MOVE
103                      | DnDConstants.ACTION_COPY_OR_MOVE
104                      | DnDConstants.ACTION_LINK
105                      | DnDConstants.ACTION_REFERENCE;
106    
107    if (~(actions ^ actionsMask) != 0)
108      throw new IllegalArgumentException();
109    
110    this.dropAction = dropAction;
111    this.actions = actions;
112    this.location = location;
113    this.isLocalTx = isLocalTx;
114  }
115  
116  public Point getLocation()
117  {
118    return location;
119  }
120
121  public DataFlavor[] getCurrentDataFlavors()
122  {
123    return context.getCurrentDataFlavors();
124  }
125
126  public List<DataFlavor> getCurrentDataFlavorsAsList()
127  {
128    return context.getCurrentDataFlavorsAsList();
129  }
130
131  public boolean isDataFlavorSupported(DataFlavor flavor)
132  {
133    return context.isDataFlavorSupported(flavor);
134  }
135
136  public int getSourceActions()
137  {
138    return actions;
139  }
140
141  public int getDropAction()
142  {
143    return dropAction;
144  }
145
146  public Transferable getTransferable()
147  {
148    return context.getTransferable ();
149  }
150
151  public void acceptDrop(int dropAction)
152  {
153    context.acceptDrop(dropAction);
154  }
155
156  public void rejectDrop()
157  {
158    context.rejectDrop();
159  }
160
161  public void dropComplete(boolean success)
162  {
163    context.dropComplete(success);
164  }
165
166  public boolean isLocalTransfer()
167  {
168    return isLocalTx;
169  }
170} // class DropTargetDropEvent