Builds on windows again

pglab/stopwatch.cpp

@@ -0,0 +1,68 @@
+#include "stopwatch.h"
+#include "util.h"
+
+#include <QLabel>
+
+StopWatch::StopWatch()
+{}
+
+void StopWatch::start()
+{
+	m_elapsed.start();
+	connect(&m_timer, SIGNAL(timeout()), this, SLOT(updateTimer()));
+	m_timer.start(18);
+}
+
+void StopWatch::stop()
+{
+	m_timeTaken = m_elapsed.elapsed();
+	m_timer.stop();
+	updateTimer();
+	m_elapsed.invalidate();
+}
+
+void StopWatch::updateTimer()
+{
+//	auto nu = std::chrono::steady_clock::now();
+//	std::chrono::duration<float, std::milli> diff = nu - m_startTime;
+//	elapsedTime = diff;
+//	m_timeElapsedLabel->setText(msfloatToHumanReadableString(diff.count()));
+	if (m_elapsed.isValid()) {
+		qint64 ms = m_elapsed.elapsed();
+		if (m_output) {
+			m_output->setText(msfloatToHumanReadableString(ms));
+		}
+
+
+		if (m_timer.isActive()) {
+			int interval;
+			if (ms >= 10000) {
+				int rem = ms % 1000;
+				interval = 1000 - rem;
+			}
+			else if (ms >= 1000)
+				interval = 100;
+			else
+				interval = 18;
+
+			if (interval != m_timer.interval())
+				m_timer.setInterval(interval);
+		}
+	}
+}
+
+void StopWatch::setOutputLabel(QLabel *label)
+{
+	m_output = label;
+}
+
+qint64 StopWatch::elapsed()
+{
+	qint64 result;
+	if (m_elapsed.isValid())
+		result = m_elapsed.elapsed();
+	else
+		result = m_timeTaken;
+
+	return result;
+}