43 lines
919 B
C++
43 lines
919 B
C++
#ifndef FREQUENCYMONITOR_H
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#define FREQUENCYMONITOR_H
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#include <QQuickItem>
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#include <QTime>
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#include <QMetaObject>
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class QQuickWindow;
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class FrequencyMonitor : public QQuickItem
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{
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Q_OBJECT
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Q_PROPERTY(int fps READ fps NOTIFY fpsChanged)
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Q_PROPERTY(int refreshPeriod READ refreshPeriod WRITE setRefreshPeriod NOTIFY refreshPeriodChanged)
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public:
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explicit FrequencyMonitor(QQuickItem *parent = 0);
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int fps() const;
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void setFps(int fps);
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// by default refresh one time per 1000 msec
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int refreshPeriod() const;
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void setRefreshPeriod(int msec);
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signals:
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void fpsChanged();
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void refreshPeriodChanged();
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public slots:
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void handleAfterRendering();
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void handleWindowChanged(QQuickWindow * window);
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protected:
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QMetaObject::Connection m_windowConnection;
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QTime m_time;
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int m_fps;
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int m_counter;
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int m_refreshPeriod;
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};
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#endif // FREQUENCYMONITOR_H
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