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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 QtMultimedia
\ingroup multimedia-serv
\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 SpotMeteringPoint
The relative frame coordinate of the point to use for exposure metering
in spot metering mode, specified as a QPointF.
\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
|
