diff options
Diffstat (limited to 'src/plugins/qnx/camera/bbcameraorientationhandler.cpp')
-rw-r--r-- | src/plugins/qnx/camera/bbcameraorientationhandler.cpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/src/plugins/qnx/camera/bbcameraorientationhandler.cpp b/src/plugins/qnx/camera/bbcameraorientationhandler.cpp new file mode 100644 index 000000000..b715249f9 --- /dev/null +++ b/src/plugins/qnx/camera/bbcameraorientationhandler.cpp @@ -0,0 +1,102 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Research In Motion +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#include "bbcameraorientationhandler.h" + +#include <QAbstractEventDispatcher> +#include <QCoreApplication> +#include <QDebug> + +#include <bps/orientation.h> + +QT_BEGIN_NAMESPACE + +BbCameraOrientationHandler::BbCameraOrientationHandler(QObject *parent) + : QObject(parent) + , m_orientation(0) +{ + QCoreApplication::eventDispatcher()->installNativeEventFilter(this); + int result = orientation_request_events(0); + if (result == BPS_FAILURE) + qWarning() << "Unable to register for orientation change events"; + + orientation_direction_t direction = ORIENTATION_FACE_UP; + int angle = 0; + + result = orientation_get(&direction, &angle); + if (result == BPS_FAILURE) { + qWarning() << "Unable to retrieve initial orientation"; + } else { + m_orientation = angle; + } +} + +BbCameraOrientationHandler::~BbCameraOrientationHandler() +{ +#ifndef Q_OS_BLACKBERRY_TABLET + const int result = orientation_stop_events(0); + if (result == BPS_FAILURE) + qWarning() << "Unable to unregister for orientation change events"; +#endif + + QCoreApplication::eventDispatcher()->removeNativeEventFilter(this); +} + +bool BbCameraOrientationHandler::nativeEventFilter(const QByteArray&, void *message, long*) +{ + bps_event_t* const event = static_cast<bps_event_t*>(message); + if (!event || bps_event_get_domain(event) != orientation_get_domain()) + return false; + + const int angle = orientation_event_get_angle(event); + if (angle != m_orientation) { + m_orientation = angle; + emit orientationChanged(m_orientation); + } + + return false; // do not drop the event +} + +int BbCameraOrientationHandler::orientation() const +{ + return m_orientation; +} + +QT_END_NAMESPACE |