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#ifndef AVFCAMERAZOOMCONTROL_H
#define AVFCAMERAZOOMCONTROL_H

#include <QtMultimedia/qcamerazoomcontrol.h>
#include <QtMultimedia/qcamera.h>

#include <AVFoundation/AVFoundation.h>

QT_BEGIN_NAMESPACE

class AVFCameraService;
class AVFCameraSession;
class AVFCameraControl;

class AVFCameraZoomControl : public QCameraZoomControl
{
    Q_OBJECT
public:
    AVFCameraZoomControl(AVFCameraService *service);

    qreal maximumOpticalZoom() const override;
    qreal maximumDigitalZoom() const override;

    qreal requestedOpticalZoom() const override;
    qreal requestedDigitalZoom() const override;
    qreal currentOpticalZoom() const override;
    qreal currentDigitalZoom() const override;

    void zoomTo(qreal optical, qreal digital) override;

private Q_SLOTS:
    void cameraStateChanged();

private:
    void zoomToRequestedDigital();

    AVFCameraSession *m_session;

    CGFloat m_maxZoomFactor;
    CGFloat m_zoomFactor;
    CGFloat m_requestedZoomFactor;
};

QT_END_NAMESPACE

#endif