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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0 WITH Qt-GPL-exception-1.0
#pragma once
#include <qabstractanimation.h>
#include <QtCore/qbasictimer.h>
#include <QtCore/qelapsedtimer.h>
#include <QtCore/qmath.h>
class AnimationDriver : public QAnimationDriver
{
Q_OBJECT
public:
AnimationDriver(QObject *parent = nullptr);
~AnimationDriver();
void timerEvent(QTimerEvent *e) override;
void setInterval(int interval)
{
m_interval = qBound(1, interval, 60);
}
int interval() const
{
return m_interval;
}
void reset()
{
m_elapsedTimer.invalidate();
m_pauseBegin = 0;
m_pauseTime = 0;
m_elapsed = 0;
m_seekerElapsed = 0;
stopTimer();
}
void restart()
{
m_pauseTime = 0;
m_elapsed = 0;
m_seekerElapsed = 0;
startTimer();
}
void pause()
{
m_pauseBegin = m_elapsedTimer.elapsed();
stopTimer();
}
void play()
{
if (m_elapsedTimer.isValid())
m_pauseTime += m_elapsedTimer.elapsed() - m_pauseBegin;
startTimer();
}
qint64 elapsed() const override
{
return m_elapsed + m_seekerElapsed - m_pauseTime;
}
void setSeekerPosition(int position);
void setSeekerEnabled(bool enable)
{
m_seekerEnabled = enable;
}
bool isSeekerEnabled() const
{
return m_seekerEnabled;
}
bool isAnimating() const
{
return (!m_seekerEnabled && m_timer.isActive()) || (m_seekerEnabled && m_delta && m_seekerPos);
}
Q_SIGNALS:
void advanced();
private:
Q_SLOT void startTimer();
Q_SLOT void stopTimer();
QBasicTimer m_timer;
QElapsedTimer m_elapsedTimer;
int m_interval = 16;
int m_seekerPos = 0;
bool m_seekerEnabled = false;
qint64 m_elapsed = 0;
qint64 m_seekerElapsed = 0;
qint64 m_delta = 0;
qint64 m_pauseTime = 0;
qint64 m_pauseBegin = 0;
};
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