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Diffstat (limited to 'basicsuite/ebike-ui/fpscounter.h')
-rw-r--r-- | basicsuite/ebike-ui/fpscounter.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/basicsuite/ebike-ui/fpscounter.h b/basicsuite/ebike-ui/fpscounter.h new file mode 100644 index 0000000..7828844 --- /dev/null +++ b/basicsuite/ebike-ui/fpscounter.h @@ -0,0 +1,77 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the E-Bike demo project. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPLv3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or later as published by the Free +** Software Foundation and appearing in the file LICENSE.GPL included in +** the packaging of this file. Please review the following information to +** ensure the GNU General Public License version 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef FPSCOUNTER_H +#define FPSCOUNTER_H + +#include <QObject> +#include <QElapsedTimer> + +class QQuickWindow; + +class FpsCounter : public QObject +{ + Q_OBJECT + Q_PROPERTY(qreal fps READ fps NOTIFY fpsChanged) + Q_PROPERTY(bool visible READ visible WRITE setVisible NOTIFY visibleChanged) + +public: + explicit FpsCounter(QObject *parent = nullptr); + +public: + qreal fps() const { return m_fps; } + bool visible() const { return m_visible; } + void setVisible(bool visible); + void setWindow(QQuickWindow *window); + +protected: + void timerEvent(QTimerEvent *); + +signals: + void fpsChanged(qreal fps); + void visibleChanged(bool visible); + +private slots: + void frameUpdated() { m_frameCounter++; } + +private: + QElapsedTimer m_timer; + int m_frameCounter; + qreal m_fps; + bool m_visible; +}; + +#endif // FPSCOUNTER_H |