/****************************************************************************
**
** Copyright (C) 2015 Paul Lemire
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
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** Alternatively, this file may be used under the terms of the GNU
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****************************************************************************/

#include "qtickclockservice_p.h"
#include "qtickclock_p.h"
#include "qabstractframeadvanceservice_p.h"

QT_BEGIN_NAMESPACE

namespace Qt3DCore {
/*!
    \class Qt3DCore::QTickClockServicePrivate
    \internal
*/

class QTickClockServicePrivate : public QAbstractFrameAdvanceServicePrivate
{
public:
    QTickClockServicePrivate()
        : QAbstractFrameAdvanceServicePrivate(QStringLiteral("Default Frame Advance Service implementation"))
    {
        m_clock.setTickFrequency(60);
        m_clock.start();
    }

    QTickClock m_clock;
};

/*!
    \class Qt3DCore::QTickClockService
    \inmodule Qt3DCore
    \brief Default Qt3DCore::QAbstractFrameAdvanceService implementation.

    This default Qt3DCore::QAbstractFrameAdvanceService implementation has a frequency of 60 Hz.
*/
QTickClockService::QTickClockService()
    : QAbstractFrameAdvanceService(*new QTickClockServicePrivate())
{
}

QTickClockService::~QTickClockService()
{
}

qint64 QTickClockService::waitForNextFrame()
{
    Q_D(QTickClockService);
    return d->m_clock.waitForNextTick();
}

/*!
    Starts the inner tick clock used by the service.
 */
void QTickClockService::start()
{
    Q_D(QTickClockService);
    d->m_clock.start();
}

void QTickClockService::stop()
{
}

} // Qt3D

QT_END_NAMESPACE