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Diffstat (limited to 'src/multimediakit/qcameraexposurecontrol.cpp')
| -rw-r--r-- | src/multimediakit/qcameraexposurecontrol.cpp | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/src/multimediakit/qcameraexposurecontrol.cpp b/src/multimediakit/qcameraexposurecontrol.cpp new file mode 100644 index 000000000..5df107e75 --- /dev/null +++ b/src/multimediakit/qcameraexposurecontrol.cpp @@ -0,0 +1,252 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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, Nokia gives you certain additional +** rights. These rights are described in the Nokia 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. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <qcameraexposurecontrol.h> +#include "qmediacontrol_p.h" + +QT_BEGIN_NAMESPACE + +/*! + \class QCameraExposureControl + + \brief The QCameraExposureControl class allows controlling camera exposure parameters. + + \inmodule QtMultimediaKit + \ingroup camera + \since 1.1 + + You can adjust a number of parameters that will affect images and video taken with + the corresponding QCamera object. + + There are a number of different parameters that can be adjusted, including: + + \table + \row + \header + \ + + \endtable + + The interface name of QCameraExposureControl is \c com.nokia.Qt.QCameraExposureControl/1.0 as + defined in QCameraExposureControl_iid. + + \sa QCamera +*/ + +/*! + \macro QCameraExposureControl_iid + + \c com.nokia.Qt.QCameraExposureControl/1.0 + + Defines the interface name of the QCameraExposureControl class. + + \relates QCameraExposureControl +*/ + +/*! + Constructs a camera exposure control object with \a parent. +*/ +QCameraExposureControl::QCameraExposureControl(QObject *parent): + QMediaControl(*new QMediaControlPrivate, parent) +{ +} + +/*! + Destroys the camera control object. +*/ +QCameraExposureControl::~QCameraExposureControl() +{ +} + +/*! + \fn QCamera::ExposureMode QCameraExposureControl::exposureMode() const + + Returns the exposure mode. + \since 1.1 +*/ + + +/*! + \fn void QCameraExposureControl::setExposureMode(QCameraExposure::ExposureMode mode) + + Set the exposure mode to \a mode. + \since 1.1 +*/ + + +/*! + \fn bool QCameraExposureControl::isExposureModeSupported(QCameraExposure::ExposureMode mode) const + + Returns true if the exposure \a mode is supported. + \since 1.1 +*/ + + +/*! + \fn QCameraExposure::MeteringMode QCameraExposureControl::meteringMode() const + Returns the current metering mode. + \since 1.1 +*/ + +/*! + \fn void QCameraExposureControl::setMeteringMode(QCameraExposure::MeteringMode mode) + + Set the metering mode to \a mode. + \since 1.1 +*/ + + +/*! + \fn bool QCameraExposureControl::isMeteringModeSupported(QCameraExposure::MeteringMode mode) const + Returns true if the metering \a mode is supported. + \since 1.1 +*/ + +/*! + \enum QCameraExposureControl::ExposureParameter + \value InvalidParameter + Parameter is invalid. + \value ISO + Camera ISO sensitivity, specified as integer value. + \value Aperture + Lens aperture is specified as an qreal F number. + The supported apertures list can change depending on the focal length, + in such a case the exposureParameterRangeChanged() signal is emitted. + \value ShutterSpeed + Shutter speed in seconds, specified as qreal. + \value ExposureCompensation + Exposure compensation, specified as qreal EV value. + \value FlashPower + Manual flash power, specified as qreal value. + Accepted power range is [0..1.0], + with 0 value means no flash and 1.0 corresponds to full flash power. + + This value is only used in the \l{QCameraExposure::FlashManual}{manual flash mode}. + \value FlashCompensation + Flash compensation, specified as qreal EV value. + \value ExtendedExposureParameter + The base value for platform specific extended parameters. + For such parameters the sequential values starting from ExtendedExposureParameter shuld be used. +*/ + +/*! + \enum QCameraExposureControl::ParameterFlag + \value AutomaticValue + Use the automatic values for parameters. + \value ReadOnly + Parameters are read only. + \value ContinuousRange + Parameters are continuous in their range. +*/ + +/*! + \fn QCameraExposureControl::isParameterSupported(ExposureParameter parameter) const + + Returns true is exposure \a parameter is supported by backend. + \since 1.1 +*/ + +/*! + \fn QCameraExposureControl::exposureParameter(ExposureParameter parameter) const + + Returns the exposure \a parameter value, or invalid QVariant() if the value is unknown or not supported. + \since 1.1 +*/ + +/*! + \fn QCameraExposureControl::exposureParameterFlags(ExposureParameter parameter) const + + Returns the properties of exposure \a parameter. + \since 1.1 +*/ + + +/*! + \fn QCameraExposureControl::supportedParameterRange(ExposureParameter parameter) const + + Returns the list of supported \a parameter values; + \since 1.1 +*/ + +/*! + \fn bool QCameraExposureControl::setExposureParameter(ExposureParameter parameter, const QVariant& value) + + Set the exposure \a parameter to \a value. + If a null or invalid QVariant is passed, backend should choose the value automatically, + and if possible report the actual value to user with QCameraExposureControl::exposureParameter(). + + Returns true if parameter is supported and value is correct. + \since 1.1 +*/ + +/*! + \fn QCameraExposureControl::extendedParameterName(ExposureParameter parameter) + + Returns the extended exposure \a parameter name. + \since 1.1 +*/ + +/*! + \fn void QCameraExposureControl::flashReady(bool ready) + + Signal emitted when flash state changes, flash is charged \a ready. + \since 1.1 +*/ + +/*! + \fn void QCameraExposureControl::exposureParameterChanged(int parameter) + + Signal emitted when the exposure \a parameter has changed. + \since 1.1 +*/ + +/*! + + \fn void QCameraExposureControl::exposureParameterRangeChanged(int parameter) + + Signal emitted when the exposure \a parameter range has changed. + \since 1.1 +*/ + + +#include "moc_qcameraexposurecontrol.cpp" +QT_END_NAMESPACE + |