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    1   /*
    2    * Copyright (c) 1998, 2006, Oracle and/or its affiliates. All rights reserved.
    3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    4    *
    5    * This code is free software; you can redistribute it and/or modify it
    6    * under the terms of the GNU General Public License version 2 only, as
    7    * published by the Free Software Foundation.  Oracle designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Oracle in the LICENSE file that accompanied this code.
   10    *
   11    * This code is distributed in the hope that it will be useful, but WITHOUT
   12    * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   13    * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   14    * version 2 for more details (a copy is included in the LICENSE file that
   15    * accompanied this code).
   16    *
   17    * You should have received a copy of the GNU General Public License version
   18    * 2 along with this work; if not, write to the Free Software Foundation,
   19    * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   20    *
   21    * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   22    * or visit www.oracle.com if you need additional information or have any
   23    * questions.
   24    */
   25   
   26   
   27   
   28   package java.awt.dnd;
   29   
   30   import java.util.EventListener;
   31   
   32   /**
   33    * The listener interface for receiving drag gesture events.
   34    * This interface is intended for a drag gesture recognition
   35    * implementation. See a specification for {@code DragGestureRecognizer}
   36    * for details on how to register the listener interface.
   37    * Upon recognition of a drag gesture the {@code
   38    * DragGestureRecognizer} calls this interface's
   39    * {@link #dragGestureRecognized dragGestureRecognized()}
   40    * method and passes a {@code DragGestureEvent}.
   41   
   42    *
   43    * @see java.awt.dnd.DragGestureRecognizer
   44    * @see java.awt.dnd.DragGestureEvent
   45    * @see java.awt.dnd.DragSource
   46    */
   47   
   48    public interface DragGestureListener extends EventListener {
   49   
   50       /**
   51        * This method is invoked by the {@code DragGestureRecognizer}
   52        * when the {@code DragGestureRecognizer} detects a platform-dependent
   53        * drag initiating gesture. To intiate the drag and drop operation,
   54        * if approtiate, {@link DragGestureEvent#startDrag startDrag()} method on
   55        * the {@code DragGestureEvent} has to be invoked.
   56        * <P>
   57        * @see java.awt.dnd.DragGestureRecognizer
   58        * @see java.awt.dnd.DragGestureEvent
   59        * @param dge the <code>DragGestureEvent</code> describing
   60        * the gesture that has just occurred
   61        */
   62   
   63        void dragGestureRecognized(DragGestureEvent dge);
   64   }

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