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Diffstat (limited to 'src/plugins/qnx/camera/bbcameraexposurecontrol.cpp')
| -rw-r--r-- | src/plugins/qnx/camera/bbcameraexposurecontrol.cpp | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/src/plugins/qnx/camera/bbcameraexposurecontrol.cpp b/src/plugins/qnx/camera/bbcameraexposurecontrol.cpp new file mode 100644 index 000000000..b1d637cd0 --- /dev/null +++ b/src/plugins/qnx/camera/bbcameraexposurecontrol.cpp @@ -0,0 +1,236 @@ +/**************************************************************************** +** +** 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 "bbcameraexposurecontrol.h" + +#include "bbcamerasession.h" + +#include <QDebug> + +QT_BEGIN_NAMESPACE + +BbCameraExposureControl::BbCameraExposureControl(BbCameraSession *session, QObject *parent) + : QCameraExposureControl(parent) + , m_session(session) + , m_requestedExposureMode(QCameraExposure::ExposureAuto) +{ + connect(m_session, SIGNAL(statusChanged(QCamera::Status)), this, SLOT(statusChanged(QCamera::Status))); +} + +bool BbCameraExposureControl::isParameterSupported(ExposureParameter parameter) const +{ + switch (parameter) { + case QCameraExposureControl::ISO: + return false; + case QCameraExposureControl::Aperture: + return false; + case QCameraExposureControl::ShutterSpeed: + return false; + case QCameraExposureControl::ExposureCompensation: + return false; + case QCameraExposureControl::FlashPower: + return false; + case QCameraExposureControl::FlashCompensation: + return false; + case QCameraExposureControl::TorchPower: + return false; + case QCameraExposureControl::SpotMeteringPoint: + return false; + case QCameraExposureControl::ExposureMode: + return true; + case QCameraExposureControl::MeteringMode: + return false; + default: + return false; + } +} + +QVariantList BbCameraExposureControl::supportedParameterRange(ExposureParameter parameter, bool *continuous) const +{ + if (parameter != QCameraExposureControl::ExposureMode) // no other parameter supported by BB10 API at the moment + return QVariantList(); + + if (m_session->status() != QCamera::ActiveStatus) // we can query supported exposure modes only with active viewfinder + return QVariantList(); + + if (continuous) + *continuous = false; + + int supported = 0; + camera_scenemode_t modes[20]; + const camera_error_t result = camera_get_scene_modes(m_session->handle(), 20, &supported, modes); + if (result != CAMERA_EOK) { + qWarning() << "Unable to retrieve supported scene modes:" << result; + return QVariantList(); + } + + QVariantList exposureModes; + for (int i = 0; i < supported; ++i) { + switch (modes[i]) { + case CAMERA_SCENE_AUTO: + exposureModes << QVariant::fromValue(QCameraExposure::ExposureAuto); + break; + case CAMERA_SCENE_SPORTS: + exposureModes << QVariant::fromValue(QCameraExposure::ExposureSports); + break; + case CAMERA_SCENE_CLOSEUP: + exposureModes << QVariant::fromValue(QCameraExposure::ExposurePortrait); + break; + case CAMERA_SCENE_ACTION: + exposureModes << QVariant::fromValue(QCameraExposure::ExposureSports); + break; + case CAMERA_SCENE_BEACHANDSNOW: + exposureModes << QVariant::fromValue(QCameraExposure::ExposureBeach) << QVariant::fromValue(QCameraExposure::ExposureSnow); + break; + case CAMERA_SCENE_NIGHT: + exposureModes << QVariant::fromValue(QCameraExposure::ExposureNight); + break; + default: break; + } + } + + return exposureModes; +} + +QVariant BbCameraExposureControl::requestedValue(ExposureParameter parameter) const +{ + if (parameter != QCameraExposureControl::ExposureMode) // no other parameter supported by BB10 API at the moment + return QVariant(); + + return QVariant::fromValue(m_requestedExposureMode); +} + +QVariant BbCameraExposureControl::actualValue(ExposureParameter parameter) const +{ +#ifndef Q_OS_BLACKBERRY_TABLET + if (parameter != QCameraExposureControl::ExposureMode) // no other parameter supported by BB10 API at the moment + return QVariantList(); + + if (m_session->status() != QCamera::ActiveStatus) // we can query actual scene modes only with active viewfinder + return QVariantList(); + + camera_scenemode_t sceneMode = CAMERA_SCENE_DEFAULT; + const camera_error_t result = camera_get_scene_mode(m_session->handle(), &sceneMode); + + if (result != CAMERA_EOK) { + qWarning() << "Unable to retrieve scene mode:" << result; + return QVariant(); + } + + switch (sceneMode) { + case CAMERA_SCENE_AUTO: + return QVariant::fromValue(QCameraExposure::ExposureAuto); + case CAMERA_SCENE_SPORTS: + return QVariant::fromValue(QCameraExposure::ExposureSports); + case CAMERA_SCENE_CLOSEUP: + return QVariant::fromValue(QCameraExposure::ExposurePortrait); + case CAMERA_SCENE_ACTION: + return QVariant::fromValue(QCameraExposure::ExposureSports); + case CAMERA_SCENE_BEACHANDSNOW: + return (m_requestedExposureMode == QCameraExposure::ExposureBeach ? QVariant::fromValue(QCameraExposure::ExposureBeach) + : QVariant::fromValue(QCameraExposure::ExposureSnow)); + case CAMERA_SCENE_NIGHT: + return QVariant::fromValue(QCameraExposure::ExposureNight); + default: + return QVariant(); + } +#else + return QVariant(); +#endif +} + +bool BbCameraExposureControl::setValue(ExposureParameter parameter, const QVariant& value) +{ + if (parameter != QCameraExposureControl::ExposureMode) // no other parameter supported by BB10 API at the moment + return false; + + if (m_session->status() != QCamera::ActiveStatus) // we can set actual scene modes only with active viewfinder + return false; + + camera_scenemode_t sceneMode = CAMERA_SCENE_DEFAULT; + + if (value.isValid()) { + m_requestedExposureMode = value.value<QCameraExposure::ExposureMode>(); + emit requestedValueChanged(QCameraExposureControl::ExposureMode); + + switch (m_requestedExposureMode) { + case QCameraExposure::ExposureAuto: + sceneMode = CAMERA_SCENE_AUTO; + break; + case QCameraExposure::ExposureSports: + sceneMode = CAMERA_SCENE_SPORTS; + break; + case QCameraExposure::ExposurePortrait: + sceneMode = CAMERA_SCENE_CLOSEUP; + break; + case QCameraExposure::ExposureBeach: + sceneMode = CAMERA_SCENE_BEACHANDSNOW; + break; + case QCameraExposure::ExposureSnow: + sceneMode = CAMERA_SCENE_BEACHANDSNOW; + break; + case QCameraExposure::ExposureNight: + sceneMode = CAMERA_SCENE_NIGHT; + break; + default: + sceneMode = CAMERA_SCENE_DEFAULT; + break; + } + } + + const camera_error_t result = camera_set_scene_mode(m_session->handle(), sceneMode); + + if (result != CAMERA_EOK) { + qWarning() << "Unable to set scene mode:" << result; + return false; + } + + emit actualValueChanged(QCameraExposureControl::ExposureMode); + + return true; +} + +void BbCameraExposureControl::statusChanged(QCamera::Status status) +{ + if (status == QCamera::ActiveStatus || status == QCamera::LoadedStatus) + emit parameterRangeChanged(QCameraExposureControl::ExposureMode); +} + +QT_END_NAMESPACE |