File indexing completed on 2024-04-21 04:02:25

 /*
     SPDX-FileCopyrightText: 2009 Ian Wadham <iandw.au@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "kgrtimer.h"
 
 #include "kgoldrunner_debug.h"
 
 KGrTimer::KGrTimer (QObject * parent, int pTickTime, float pScale)
     :
     QObject      (parent),
     ticker       (new QTimer (parent)),
     tickTime     (pTickTime),
     tickCount    (0),
     halfTick     (pTickTime / 2),
     expectedTime (0)
 {
     setScale (pScale);
     connect(ticker, &QTimer::timeout, this, &KGrTimer::internalSlot);
     ticker->start (tickTime);
     t.start();
 }
 
 KGrTimer::~KGrTimer()
 {
     ticker->stop();
 }
 
 void KGrTimer::pause()
 {
     ticker->stop();
 }
 
 void KGrTimer::resume()
 {
     ticker->start (tickTime);
     t.start();
     expectedTime = 0;
 }
 
 void KGrTimer::step()
 {
     tickCount++;
     expectedTime = expectedTime + tickTime;
     Q_EMIT tick (false, scaledTime);
 }
 
 void KGrTimer::internalSlot()
 {
     // Check whether the QTimer::timeout() signal is on-time.
     int timeOnClock = t.elapsed();
 
     // If the signal is too early, ignore it.  If it is on-time +/-halfTick,
     // trigger an internal signal.  If it is late, trigger more internal
     // signals, in order to "catch up".
     
     while (timeOnClock > (expectedTime + halfTick)) {
         tickCount++;
         expectedTime = expectedTime + tickTime;
         Q_EMIT tick ((timeOnClock >= (expectedTime + tickTime)), scaledTime);
     }
 }
 
 #include "moc_kgrtimer.cpp"