blob: e6fa0a1809e6ad17380f81927bbc1d904079ec36 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/****************************************************************************
**
** Copyright (C) 2013 Research In Motion
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qvideooutputorientationhandler_p.h"
#include <QGuiApplication>
#include <QScreen>
#include <qpa/qplatformscreen.h>
QT_BEGIN_NAMESPACE
QVideoOutputOrientationHandler::QVideoOutputOrientationHandler(QObject *parent)
: QObject(parent)
, m_currentOrientation(0)
{
QScreen *screen = QGuiApplication::primaryScreen();
// we want to be informed about all orientation changes
screen->setOrientationUpdateMask(Qt::PortraitOrientation|Qt::LandscapeOrientation
|Qt::InvertedPortraitOrientation|Qt::InvertedLandscapeOrientation);
connect(screen, SIGNAL(orientationChanged(Qt::ScreenOrientation)),
this, SLOT(screenOrientationChanged(Qt::ScreenOrientation)));
screenOrientationChanged(screen->orientation());
}
int QVideoOutputOrientationHandler::currentOrientation() const
{
return m_currentOrientation;
}
void QVideoOutputOrientationHandler::screenOrientationChanged(Qt::ScreenOrientation orientation)
{
const QScreen *screen = QGuiApplication::primaryScreen();
const QPlatformScreen *platformScreen = screen->handle();
const int angle = (360 - screen->angleBetween(platformScreen->nativeOrientation(), orientation)) % 360;
if (angle == m_currentOrientation)
return;
m_currentOrientation = angle;
emit orientationChanged(m_currentOrientation);
}
QT_END_NAMESPACE
|
