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Java > Open Source Codes > org > eclipse > ui > internal > dnd > IDropTarget


1 /*******************************************************************************
2  * Copyright (c) 2004, 2006 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.ui.internal.dnd;
12
13 import org.eclipse.swt.graphics.Cursor;
14 import org.eclipse.swt.graphics.Rectangle;
15
16 /**
17  * This interface is used to drop objects. It knows how to drop a particular object
18  * in a particular location. IDropTargets are typically created by IDragOverListeners, and
19  * it is the job of the IDragOverListener to supply the drop target with information about
20  * the object currently being dragged.
21  *
22  * @see org.eclipse.ui.internal.dnd.IDragOverListener
23  */
24 public interface IDropTarget {
25
26     /**
27      * Drops the object in this position
28      */
29     void drop();
30
31     /**
32      * Returns a cursor describing this drop operation
33      *
34      * @return a cursor describing this drop operation
35      */
36     Cursor getCursor();
37
38     /**
39      * Returns a rectangle (screen coordinates) describing the target location
40      * for this drop operation.
41      *
42      * @return a snap rectangle or null if this drop target does not have a specific snap
43      * location.
44      */
45     Rectangle getSnapRectangle();
46 }
47
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