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1 /* | |
2 * Copyright (C) 2007, 2008, 2009, 2010 Apple, Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions | |
6 * are met: | |
7 * 1. Redistributions of source code must retain the above copyright | |
8 * notice, this list of conditions and the following disclaimer. | |
9 * 2. Redistributions in binary form must reproduce the above copyright | |
10 * notice, this list of conditions and the following disclaimer in the | |
11 * documentation and/or other materials provided with the distribution. | |
12 * | |
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
24 */ | |
25 | |
26 #ifndef QTMovieTask_h | |
27 #define QTMovieTask_h | |
28 | |
29 #include <wtf/HashSet.h> | |
30 | |
31 #ifdef QTMOVIEWIN_EXPORTS | |
32 #define QTMOVIEWIN_API __declspec(dllexport) | |
33 #else | |
34 #define QTMOVIEWIN_API __declspec(dllimport) | |
35 #endif | |
36 | |
37 class QTMovieTaskClient { | |
38 public: | |
39 virtual void task() = 0; | |
40 }; | |
41 | |
42 typedef void (*SetTaskTimerDelayFunc)(double); | |
43 typedef void (*StopTaskTimerFunc)(); | |
44 | |
45 class QTMOVIEWIN_API QTMovieTask { | |
46 public: | |
47 static QTMovieTask* sharedTask(); | |
48 | |
49 void addTaskClient(QTMovieTaskClient* client); | |
50 void removeTaskClient(QTMovieTaskClient*); | |
51 void fireTaskClients(); | |
52 | |
53 void updateTaskTimer(double maxInterval = 1.0, double minInterval = 1.0 / 30
); | |
54 void setTaskTimerFuncs(SetTaskTimerDelayFunc setTaskTimerDelay, StopTaskTime
rFunc stopTaskTimer); | |
55 | |
56 protected: | |
57 QTMovieTask(); | |
58 ~QTMovieTask(); | |
59 | |
60 SetTaskTimerDelayFunc m_setTaskTimerDelay; | |
61 StopTaskTimerFunc m_stopTaskTimer; | |
62 HashSet<QTMovieTaskClient*> m_taskList; | |
63 | |
64 private: | |
65 QTMovieTask(const QTMovieTask&); | |
66 QTMovieTask& operator=(const QTMovieTask&); | |
67 }; | |
68 | |
69 #endif | |
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