64 lines
1 KiB
C++
64 lines
1 KiB
C++
#include "stopwatch.h"
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#include "util.h"
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#include <QLabel>
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StopWatch::StopWatch()
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{}
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void StopWatch::start()
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{
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m_elapsed.start();
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connect(&m_timer, SIGNAL(timeout()), this, SLOT(updateTimer()));
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m_timer.start(18);
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}
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void StopWatch::stop()
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{
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m_timeTaken = m_elapsed.elapsed();
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m_timer.stop();
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updateTimer();
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m_elapsed.invalidate();
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}
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void StopWatch::updateTimer()
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{
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if (m_elapsed.isValid()) {
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qint64 ms = m_elapsed.elapsed();
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if (m_output) {
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m_output->setText(msfloatToHumanReadableString(ms));
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}
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if (m_timer.isActive()) {
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int interval;
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if (ms >= 10000) {
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int rem = ms % 1000;
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interval = 1000 - rem;
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}
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else if (ms >= 1000)
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interval = 100;
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else
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interval = 18;
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if (interval != m_timer.interval())
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m_timer.setInterval(interval);
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}
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}
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}
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void StopWatch::setOutputLabel(QLabel *label)
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{
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m_output = label;
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}
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qint64 StopWatch::elapsed()
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{
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qint64 result;
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if (m_elapsed.isValid())
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result = m_elapsed.elapsed();
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else
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result = m_timeTaken;
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return result;
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}
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