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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
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**
**
**
****************************************************************************/
#ifndef DIRECTSHOWCAMERAZOOMCONTROL_H
#define DIRECTSHOWCAMERAZOOMCONTROL_H
#include <QtMultimedia/qcamerazoomcontrol.h>
#include <QtMultimedia/qcamera.h>
QT_BEGIN_NAMESPACE
class DSCameraSession;
class DirectShowCameraZoomControl : public QCameraZoomControl
{
Q_OBJECT
public:
DirectShowCameraZoomControl(DSCameraSession *session);
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 onStatusChanged(QCamera::Status status);
private:
DSCameraSession *m_session;
struct ZoomValues
{
long maxZoom;
long minZoom;
long stepping;
long defaultZoom;
long caps;
} m_opticalZoom;
qreal m_currentOpticalZoom;
qreal m_requestedOpticalZoom;
qreal m_maxOpticalZoom;
void updateZoomValues();
bool opticalZoomToPrivate(qreal value);
};
QT_END_NAMESPACE
#endif // DIRECTSHOWCAMERAZOOMCONTROL_H
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