qt-everywhere-src-5.14.1/qtmultimedia/tests/auto/unit/qmultimedia_common/mockcamerazoomcontrol.h

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#ifndef MOCKCAMERAZOOMCONTROL_H
#define MOCKCAMERAZOOMCONTROL_H

#include "qcamerazoomcontrol.h"

class MockCameraZoomControl : public QCameraZoomControl
{
    Q_OBJECT
public:
    MockCameraZoomControl(QObject *parent = 0):
        QCameraZoomControl(parent),
        m_opticalZoom(1.0),
        m_digitalZoom(1.0),
        m_maxOpticalZoom(3.0),
        m_maxDigitalZoom(4.0)

    {
    }

    ~MockCameraZoomControl() {}

    qreal maximumOpticalZoom() const
    {
        return m_maxOpticalZoom;
    }

    qreal maximumDigitalZoom() const
    {
        return m_maxDigitalZoom;
    }

    qreal currentOpticalZoom() const
    {
        return m_opticalZoom;
    }

    qreal currentDigitalZoom() const
    {
        return m_digitalZoom;
    }

    qreal requestedOpticalZoom() const
    {
        return m_opticalZoom;
    }

    qreal requestedDigitalZoom() const
    {
        return m_digitalZoom;
    }

    void zoomTo(qreal optical, qreal digital)
    {
        optical = qBound<qreal>(1.0, optical, maximumOpticalZoom());
        digital = qBound<qreal>(1.0, digital, maximumDigitalZoom());

        if (!qFuzzyCompare(digital, m_digitalZoom)) {
            m_digitalZoom = digital;
            emit requestedDigitalZoomChanged(m_digitalZoom);
            emit currentDigitalZoomChanged(m_digitalZoom);
        }

        if (!qFuzzyCompare(optical, m_opticalZoom)) {
            m_opticalZoom = optical;
            emit requestedOpticalZoomChanged(m_opticalZoom);
            emit currentOpticalZoomChanged(m_opticalZoom);
        }

        maxOpticalDigitalZoomChange(4.0, 5.0);
    }

    // helper function to emit maximum Optical and Digital Zoom Changed signals
    void maxOpticalDigitalZoomChange(qreal maxOptical, qreal maxDigital)
    {
        if (maxOptical != m_maxOpticalZoom) {
            m_maxOpticalZoom = maxOptical;
            emit maximumOpticalZoomChanged(m_maxOpticalZoom);
        }

        if (maxDigital != m_maxDigitalZoom) {
            m_maxDigitalZoom = maxDigital;
            emit maximumDigitalZoomChanged(m_maxDigitalZoom);
        }
    }

private:
    qreal m_opticalZoom;
    qreal m_digitalZoom;
    qreal m_maxOpticalZoom;
    qreal m_maxDigitalZoom;
};

#endif // MOCKCAMERAZOOMCONTROL_H