1 | // Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). |
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
3 | #ifndef QT3DCORE_QTICKCLOCK_P_H |
4 | #define QT3DCORE_QTICKCLOCK_P_H |
5 | |
6 | // |
7 | // W A R N I N G |
8 | // ------------- |
9 | // |
10 | // This file is not part of the Qt API. It exists for the convenience |
11 | // of other Qt classes. This header file may change from version to |
12 | // version without notice, or even be removed. |
13 | // |
14 | // We mean it. |
15 | // |
16 | |
17 | #include <Qt3DCore/qt3dcore_global.h> |
18 | #include <QtCore/QElapsedTimer> |
19 | #include <private/qglobal_p.h> |
20 | |
21 | QT_BEGIN_NAMESPACE |
22 | |
23 | namespace Qt3DCore { |
24 | |
25 | class QTickClock |
26 | { |
27 | public: |
28 | QTickClock(); |
29 | |
30 | void setTickFrequency(float frequency); |
31 | |
32 | void start(); |
33 | void reset(); |
34 | |
35 | qint64 waitForNextTick(); |
36 | |
37 | private: |
38 | QElapsedTimer m_timer; |
39 | qint64 m_tickInterval; |
40 | qint64 m_time; |
41 | }; |
42 | |
43 | } // namespace Qt3DCore |
44 | |
45 | QT_END_NAMESPACE |
46 | |
47 | #endif // QT3DCORE_QTICKCLOCK_P_H |
48 | |