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Java > Open Source Codes > org > eclipse > swt > dnd > DragSourceAdapter


1 /*******************************************************************************
2  * Copyright (c) 2000, 2004 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.swt.dnd;
12
13
14 /**
15  * This adapter class provides default implementations for the
16  * methods described by the <code>DragSourceListener</code> interface.
17  *
18  * <p>Classes that wish to deal with <code>DragSourceEvent</code>s can
19  * extend this class and override only the methods which they are
20  * interested in.</p>
21  *
22  * @see DragSourceListener
23  * @see DragSourceEvent
24  */
25 public class DragSourceAdapter implements DragSourceListener {
26     /**
27      * This implementation of <code>dragStart</code> permits the drag operation to start.
28      * For additional information see <code>DragSourceListener.dragStart</code>.
29      */
30     public void dragStart(DragSourceEvent event){}
31     /**
32      * This implementation of <code>dragFinished</code> does nothing.
33      * For additional information see <code>DragSourceListener.dragFinished</code>.
34      */
35     public void dragFinished(DragSourceEvent event){}
36     /**
37      * This implementation of <code>dragSetData</code> does nothing.
38      * For additional information see <code>DragSourceListener.dragSetData</code>.
39      */
40     public void dragSetData(DragSourceEvent event){}
41 }
42
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