01: /*
02: * $RCSfile: GraphStructureChangeListener.java,v $
03: *
04: * Copyright 2005-2008 Sun Microsystems, Inc. All Rights Reserved.
05: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
06: *
07: * This code is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU General Public License version 2 only, as
09: * published by the Free Software Foundation. Sun designates this
10: * particular file as subject to the "Classpath" exception as provided
11: * by Sun in the LICENSE file that accompanied this code.
12: *
13: * This code is distributed in the hope that it will be useful, but WITHOUT
14: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16: * version 2 for more details (a copy is included in the LICENSE file that
17: * accompanied this code).
18: *
19: * You should have received a copy of the GNU General Public License version
20: * 2 along with this work; if not, write to the Free Software Foundation,
21: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
22: *
23: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
24: * CA 95054 USA or visit www.sun.com if you need additional information or
25: * have any questions.
26: *
27: * $Revision: 1.5 $
28: * $Date: 2008/02/28 20:17:22 $
29: * $State: Exp $
30: */
31:
32: package javax.media.j3d;
33:
34: /**
35: * Listener interface for monitoring structural changes to live scene
36: * graphs. BranchGroup additions, removals and moves are reported.
37: *
38: * @see VirtualUniverse#addGraphStructureChangeListener
39: *
40: * @since Java 3D 1.4
41: */
42: public interface GraphStructureChangeListener {
43: /**
44: * Invoked when a branch group is added.
45: * Called just before the child is added to the parent.
46: * Parent can be either a BranchGroup or a Locale.
47: *
48: * @param parent the parent of the child being added
49: * @param child the child being added
50: */
51: public void branchGroupAdded(Object parent, BranchGroup child);
52:
53: /**
54: * Invoked when a branch group is removed.
55: * Called just after the child has been removed from the parent.
56: * Parent can be either a BranchGroup or a Locale.
57: *
58: * @param parent the parent of the child being added
59: * @param child the child being added
60: */
61: public void branchGroupRemoved(Object parent, BranchGroup child);
62:
63: /**
64: * Invoked when a branch group is moved.
65: * Called after a child has been moved to it's new parent. This call differs
66: * from the other methods in that the child is live when this method is called.
67: *
68: * @param oldParent the original parent of the child being moved
69: * @param newParent the new parent of the child being moved
70: * @param child the child being moved
71: */
72: public void branchGroupMoved(Object oldParent, Object newParent,
73: BranchGroup child);
74: }
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