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33fc476d89
* require qwt >=6.2 (and fallback to internal 6.3 if system's qwt doesn't suffice) * debian doesn't have qwt for Qt6 and won't have it for trixie
41 lines
1014 B
C++
41 lines
1014 B
C++
/******************************************************************************
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* Qwt Widget Library
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* Copyright (C) 1997 Josef Wilgen
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* Copyright (C) 2002 Uwe Rathmann
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the Qwt License, Version 1.0
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*****************************************************************************/
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#include "qwt_system_clock.h"
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#include <qelapsedtimer.h>
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//! \return true, if the elapsed timer is valid
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bool QwtSystemClock::isNull() const
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{
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return m_timer.isValid();
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}
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//! Start the elapsed timer
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void QwtSystemClock::start()
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{
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m_timer.start();
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}
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/*!
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Restart the elapsed timer
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\return elapsed time in multiples of milliseconds
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*/
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double QwtSystemClock::restart()
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{
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const qint64 nsecs = m_timer.restart();
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return nsecs / 1e6;
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}
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//! \return elapsed time in multiples of milliseconds
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double QwtSystemClock::elapsed() const
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{
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const qint64 nsecs = m_timer.nsecsElapsed();
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return nsecs / 1e6;
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}
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