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[pf3gnuchains/gcc-fork.git] / libjava / classpath / java / awt / dnd / DropTargetAdapter.java

diff --git a/libjava/classpath/java/awt/dnd/DropTargetAdapter.java b/libjava/classpath/java/awt/dnd/DropTargetAdapter.java
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+/* DragSourceAdapter.java -- drag-and-drop listener adapter
+   Copyright (C) 2002, 2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package java.awt.dnd;
+
+/**
+ * This class implements <code>DropTargetListener</code>, and implements all methods
+ * with empty bodies.  This allows a listener interested in implementing only
+ * a subset of these interfaces to extend this class and override only the
+ * desired methods.
+ *
+ * @author Michael Koch (konqueror@gmx.de)
+ * @since 1.4
+ * @status updated to 1.4
+ */
+public abstract class DropTargetAdapter
+  implements DropTargetListener
+{
+  /**
+   * Default constructor.
+   */
+  public DropTargetAdapter()
+  {
+  }
+
+  /**
+   * Called when the cursor hotspot enters a drop site which will accept the
+   * drag.
+   *
+   * @param e the event
+   */
+  public void dragEnter (DropTargetDragEvent e)
+  {
+  }
+
+  /**
+   * Called when the cursor hotspot moves inside of a drop site which will
+   * accept the drag.
+   *
+   * @param e the event
+   */
+  public void dragOver (DropTargetDragEvent e)
+  {
+  }
+
+  /**
+   * Called when the user modifies the drop gesture. This is often the case
+   * when additional mouse or key events are received during the drag.
+   *
+   * @param e the event
+   */
+  public void dropActionChanged (DropTargetDragEvent e)
+  {
+  }
+
+  /**
+   * Called when the cursor hotspot moves outside of a drop site which will
+   * accept the drag. This could also happen if the drop site is no longer
+   * active, or no longer accepts the drag.
+   *
+   * @param e the event
+   */
+  public void dragExit(DropTargetEvent e)
+  {
+  }
+} // class DropTargetAdapter