Line data Source code
1 :
2 : /* Copyright (c) 2008-2013, Stefan Eilemann <eile@equalizergraphics.com>
3 : *
4 : * This library is free software; you can redistribute it and/or modify it under
5 : * the terms of the GNU Lesser General Public License version 2.1 as published
6 : * by the Free Software Foundation.
7 : *
8 : * This library is distributed in the hope that it will be useful, but WITHOUT
9 : * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
10 : * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
11 : * details.
12 : *
13 : * You should have received a copy of the GNU Lesser General Public License
14 : * along with this library; if not, write to the Free Software Foundation, Inc.,
15 : * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
16 : */
17 :
18 : #ifndef EQSERVER_COMPOUND_LISTENER_H
19 : #define EQSERVER_COMPOUND_LISTENER_H
20 :
21 : #include "types.h"
22 :
23 : namespace eq
24 : {
25 : namespace server
26 : {
27 : /** A listener on various compound operations. */
28 294 : class CompoundListener
29 : {
30 : public:
31 294 : virtual ~CompoundListener() {}
32 : /**
33 : * Notify that the compound tree below and including compound is about
34 : * to be updated.
35 : *
36 : * Called on each compound of the tree during update.
37 : *
38 : * @param compound the root compound of the tree to be updated.
39 : * @param frameNumber the new frame number.
40 : */
41 0 : virtual void notifyUpdatePre(Compound* compound LB_UNUSED,
42 : const uint32_t frameNumber LB_UNUSED)
43 : {
44 0 : }
45 :
46 : /**
47 : * Notify that the compound has a new child.
48 : *
49 : * @param compound the parent compound.
50 : * @param child the child compound.
51 : */
52 0 : virtual void notifyChildAdded(Compound* compound LB_UNUSED,
53 : Compound* child LB_UNUSED)
54 : {
55 0 : }
56 :
57 : /**
58 : * Notify that the compound is about to remove a child.
59 : *
60 : * @param compound the parent compound.
61 : * @param child the child compound.
62 : */
63 0 : virtual void notifyChildRemove(Compound* compound LB_UNUSED,
64 : Compound* child LB_UNUSED)
65 : {
66 0 : }
67 : };
68 : }
69 : }
70 : #endif // EQSERVER_COMPOUND_LISTENER_H
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