1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
39
40#ifndef QCAMERAZOOMCONTROL_H
41#define QCAMERAZOOMCONTROL_H
42
43#include <QtMultimedia/qmediacontrol.h>
44#include <QtMultimedia/qmediaobject.h>
45
46QT_BEGIN_NAMESPACE
47
48// Required for QDoc workaround
49class QString;
50
51class Q_MULTIMEDIA_EXPORT QCameraZoomControl : public QMediaControl
52{
53 Q_OBJECT
54
55public:
56 ~QCameraZoomControl();
57
58 virtual qreal maximumOpticalZoom() const = 0;
59 virtual qreal maximumDigitalZoom() const = 0;
60
61 virtual qreal requestedOpticalZoom() const = 0;
62 virtual qreal requestedDigitalZoom() const = 0;
63 virtual qreal currentOpticalZoom() const = 0;
64 virtual qreal currentDigitalZoom() const = 0;
65
66 virtual void zoomTo(qreal optical, qreal digital) = 0;
67
68Q_SIGNALS:
69 void maximumOpticalZoomChanged(qreal);
70 void maximumDigitalZoomChanged(qreal);
71
72 void requestedOpticalZoomChanged(qreal opticalZoom);
73 void requestedDigitalZoomChanged(qreal digitalZoom);
74 void currentOpticalZoomChanged(qreal opticalZoom);
75 void currentDigitalZoomChanged(qreal digitalZoom);
76
77protected:
78 explicit QCameraZoomControl(QObject *parent = nullptr);
79};
80
81#define QCameraZoomControl_iid "org.qt-project.qt.camerazoomcontrol/5.0"
82Q_MEDIA_DECLARE_CONTROL(QCameraZoomControl, QCameraZoomControl_iid)
83
84QT_END_NAMESPACE
85
86#endif // QCAMERAZOOMCONTROL_H
87