libjava/java/awt/dnd/DropTargetDropEvent.java

   1 /* DropTargetDropEvent.java --
   2    Copyright (C) 2002 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 package java.awt.dnd;
  39
  40 import java.awt.Point;
  41 import java.awt.datatransfer.DataFlavor;
  42 import java.awt.datatransfer.Transferable;
  43 import java.util.List;
  44
  45 /**
  46  * @since 1.2
  47  */
  48 public class DropTargetDropEvent extends DropTargetEvent
  49 {
  50   /**
  51    * Compatible with JDK 1.2+
  52    */
  53   private static final long serialVersionUID = -1721911170440459322L;
  54
  55   private final int dropAction;
  56   private final int actions;
  57   private final Point location;
  58   private final boolean isLocalTx;
  59
  60   /**
  61    * Initializes a <code>DropTargetDropEvent</code>. By default this constructor
  62    * assumes that the target is not int same JVM.
  63    *
  64    * @exception IllegalArgumentException If dropAction is not one of DnDConstants,
  65    * actions is not a bitwise mask of DnDConstants, or dtc is null.
  66    * @exception NullPointerException If location is null.
  67    */
  68   public DropTargetDropEvent (DropTargetContext dtc, Point location,
  69                               int dropAction, int actions)
  70   {
  71     this (dtc, location, dropAction, actions, false);
  72   }
  73
  74   /**
  75    * Initializes a <code>DropTargetDropEvent</code>.
  76    *
  77    * @exception IllegalArgumentException If dropAction is not one of DnDConstants,
  78    * actions is not a bitwise mask of DnDConstants, or dtc is null.
  79    * @exception NullPointerException If location is null.
  80    */
  81   public DropTargetDropEvent (DropTargetContext dtc, Point location,
  82                               int dropAction, int actions, boolean isLocalTx)
  83   {
  84     super (dtc);
  85
  86     if (location == null)
  87       throw new NullPointerException ();
  88
  89     if (dtc == null)
  90       throw new IllegalArgumentException ();
  91
  92     if (dropAction != DnDConstants.ACTION_NONE
  93         && dropAction != DnDConstants.ACTION_COPY
  94         && dropAction != DnDConstants.ACTION_MOVE
  95         && dropAction != DnDConstants.ACTION_COPY_OR_MOVE
  96         && dropAction != DnDConstants.ACTION_LINK
  97         && dropAction != DnDConstants.ACTION_REFERENCE)
  98       throw new IllegalArgumentException ();
  99
 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 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     // FIXME: implement this
 164   }
 165
 166   public boolean isLocalTransfer()
 167   {
 168     return isLocalTx;
 169   }
 170 } // class DropTargetDropEvent