1 /*****************************************************************************
2 * Virtual Mockup for Machine Vision
3 * Copyright (C) 2001-2003 Fabio R. de Miranda, João E. Kogler Jr.,
4 * Carlos S. Santos.
5 * Virtual Mockup for Machine Vision Project funded by SENAC-SP
6 *
7 * Permission is granted to redistribute and/or modify this
8 * software under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License (http://www.gnu.org/copyleft/lesser.html)
16 * for more details.
17 *
18 *****************************************************************************/
19
20 package camera3d.event;
21
22
23 import camera3d.event.SceneObjectsChangedEvent;
24 import java.util.List;
25 import java.util.ArrayList;
26
27 /***
28 * Event generated by J3DBase anytime a SceneObjectsChangeListener is registered
29 * with it. The new listener will not know of the objects already in the scene,
30 * thus an InitialListEvent event is fired to inform it of them. The event reaches
31 * exclusively the new listener, and none of the listener already registered with
32 * the J3DBase object.
33 * @author Fábio Roberto de Miranda, Carlos da Silva dos Santos
34 * @version 1.0
35 */
36 public class InitialListEvent extends SceneObjectsChangedEvent {
37 /* the designation "SceneObjectsChangedEvent" is a misnomer, as there is
38 no change in the list of objects when we fire this event */
39
40 /*** List of Objects contained in the scene graph at the moment a new listener
41 * is added to a J3DBase object.*/
42 private List initialList = new ArrayList();
43
44 /***
45 * Creates a new event.
46 */
47 public InitialListEvent(Object source) {
48 super(source);
49 }
50
51 /***
52 * Returns list of objects in the scene.
53 */
54 public List getInitialList(){
55 return this.initialList;
56 }
57
58 /***
59 * Sets list of scene objects.
60 */
61 public void setInitialList(List initialList){
62 this.initialList.clear();
63 this.initialList.addAll(initialList);
64 }
65 }
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