qt-everywhere-src-5.14.1/qtmultimedia/src/imports/multimedia/qdeclarativecameraexposure.cpp - orbit - Git at Google

 /****************************************************************************
 **
 ** Copyright (C) 2016 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the plugins 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 The Qt Company. For licensing terms
 ** and conditions see https://www.qt.io/terms-conditions. For further
 ** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.LGPL3 included in the
 ** packaging of this file. Please review the following information to
 ** ensure the GNU Lesser General Public License version 3 requirements
 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License version 2.0 or (at your option) the GNU General
 ** Public license version 3 or any later version approved by the KDE Free
 ** Qt Foundation. The licenses are as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
 ** included in the packaging of this file. Please review the following
 ** information to ensure the GNU General Public License requirements will
 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and
 ** https://www.gnu.org/licenses/gpl-3.0.html.
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include "qdeclarativecamera_p.h"
 #include "qdeclarativecameraexposure_p.h"

 QT_BEGIN_NAMESPACE

 /*!
     \qmltype CameraExposure
     \instantiates QDeclarativeCameraExposure
     \brief An interface for exposure related camera settings.
     \ingroup multimedia_qml
     \ingroup camera_qml
     \inqmlmodule QtMultimedia

     CameraExposure allows you to adjust exposure related settings
     like aperture and shutter speed, metering and ISO speed.

     It should not be constructed separately, instead the
     \c exposure property of the a \l Camera should be used.

     \qml

     Camera {
         id: camera

         exposure.exposureCompensation: -1.0
         exposure.exposureMode: Camera.ExposurePortrait
     }

     \endqml

     Several settings have both an automatic and a manual mode.  In
     the automatic modes the camera software itself will decide what
     a reasonable setting is, but in most cases these settings can
     be overridden with a specific manual setting.

     For example, to select automatic shutter speed selection:

     \code
         camera.exposure.setAutoShutterSpeed()
     \endcode

     Or for a specific shutter speed:

     \code
         camera.exposure.manualShutterSpeed = 0.01 // 10ms
     \endcode

     You can only choose one or the other mode.
 */

 /*!
     \internal
     \class QDeclarativeCameraExposure
     \brief The CameraExposure provides interface for exposure related camera settings.

 */

 /*!
     Construct a declarative camera exposure object using \a parent object.
  */
 QDeclarativeCameraExposure::QDeclarativeCameraExposure(QCamera *camera, QObject *parent) :
     QObject(parent)
 {
     m_exposure = camera->exposure();

     connect(m_exposure, SIGNAL(isoSensitivityChanged(int)), this, SIGNAL(isoSensitivityChanged(int)));
     connect(m_exposure, SIGNAL(apertureChanged(qreal)), this, SIGNAL(apertureChanged(qreal)));
     connect(m_exposure, SIGNAL(shutterSpeedChanged(qreal)), this, SIGNAL(shutterSpeedChanged(qreal)));

     connect(m_exposure, SIGNAL(exposureCompensationChanged(qreal)), this, SIGNAL(exposureCompensationChanged(qreal)));
     connect(camera, &QCamera::statusChanged, [this](QCamera::Status status) {
         if (status != QCamera::UnloadedStatus && status != QCamera::LoadedStatus
             && status != QCamera::ActiveStatus) {
             return;
         }

         emit supportedExposureModesChanged();
     });
 }

 QDeclarativeCameraExposure::~QDeclarativeCameraExposure()
 {
 }
 /*!
     \property QDeclarativeCameraExposure::exposureCompensation

     This property holds the adjustment value for the automatically calculated exposure. The value is in EV units.
  */
 /*!
     \qmlproperty real QtMultimedia::CameraExposure::exposureCompensation

     This property holds the adjustment value for the automatically calculated exposure.  The value is
     in EV units.
  */
 qreal QDeclarativeCameraExposure::exposureCompensation() const
 {
     return m_exposure->exposureCompensation();
 }

 void QDeclarativeCameraExposure::setExposureCompensation(qreal ev)
 {
     m_exposure->setExposureCompensation(ev);
 }
 /*!
     \property QDeclarativeCameraExposure::iso

     This property holds the sensor's ISO sensitivity value.
  */
 /*!
     \qmlproperty int QtMultimedia::CameraExposure::iso

     This property holds the sensor's ISO sensitivity value.
  */
 int QDeclarativeCameraExposure::isoSensitivity() const
 {
     return m_exposure->isoSensitivity();
 }
 /*!
     \property QDeclarativeCameraExposure::shutterSpeed

     This property holds the camera's shutter speed value in seconds.
     To affect the shutter speed you can use the \l manualShutterSpeed
     property and \l setAutoShutterSpeed().

 */
 /*!
     \qmlproperty real QtMultimedia::CameraExposure::shutterSpeed

     This property holds the camera's current shutter speed value in seconds.
     To affect the shutter speed you can use the \l manualShutterSpeed
     property and \l setAutoShutterSpeed().

 */
 qreal QDeclarativeCameraExposure::shutterSpeed() const
 {
     return m_exposure->shutterSpeed();
 }
 /*!
     \property QDeclarativeCameraExposure::aperture

     This property holds the current lens aperture as an F number (the ratio of the focal length to effective aperture diameter).

     \sa manualAperture, setAutoAperture()
 */
 /*!
     \qmlproperty real QtMultimedia::CameraExposure::aperture

     This property holds the current lens aperture as an F number (the ratio of
     the focal length to effective aperture diameter).

     \sa manualAperture, setAutoAperture()
 */
 qreal QDeclarativeCameraExposure::aperture() const
 {
     return m_exposure->aperture();
 }
 /*!
     \property QDeclarativeCameraExposure::manualIso

     This property holds the ISO settings for capturing photos.

     If the value is negative, the camera will
     automatically determine an appropriate value.

     \sa iso, setAutoIsoSensitivity()
 */
 /*!
     \qmlproperty real QtMultimedia::CameraExposure::manualIso

     This property holds the ISO settings for capturing photos.

     If a negative value is specified, the camera will
     automatically determine an appropriate value.

     \sa iso, setAutoIsoSensitivity()
 */

 int QDeclarativeCameraExposure::manualIsoSensitivity() const
 {
     return m_manualIso;
 }

 void QDeclarativeCameraExposure::setManualIsoSensitivity(int iso)
 {
     m_manualIso = iso;
     if (iso > 0)
         m_exposure->setManualIsoSensitivity(iso);
     else
         m_exposure->setAutoIsoSensitivity();

     emit manualIsoSensitivityChanged(iso);
 }
 /*!
     \property QDeclarativeCameraExposure::manualShutterSpeed

     This property holds the shutter speed value (in seconds).
     If the value is less than zero, the camera automatically
     determines an appropriate shutter speed.

     \l shutterSpeed, setAutoShutterSpeed()
 */
 /*!
     \qmlproperty real QtMultimedia::CameraExposure::manualShutterSpeed

     This property holds the shutter speed value (in seconds).
     If the value is less than zero, the camera automatically
     determines an appropriate shutter speed.

     \l shutterSpeed, setAutoShutterSpeed()
 */
 qreal QDeclarativeCameraExposure::manualShutterSpeed() const
 {
     return m_manualShutterSpeed;
 }

 void QDeclarativeCameraExposure::setManualShutterSpeed(qreal speed)
 {
     m_manualShutterSpeed = speed;
     if (speed > 0)
         m_exposure->setManualShutterSpeed(speed);
     else
         m_exposure->setAutoShutterSpeed();

     emit manualShutterSpeedChanged(speed);
 }
 /*!
     \property QDeclarativeCameraExposure::manualAperture

     This property holds aperture (F number) value
     for capturing photos.

     If the value is less than zero,
     the camera automatically determines an appropriate aperture value.

     \l aperture, setAutoAperture()
 */
 /*!
     \qmlproperty real QtMultimedia::CameraExposure::manualAperture

     This property holds the aperture (F number) value
     for capturing photos.

     If the value is less than zero, the camera automatically
     determines an appropriate aperture value.

     \l aperture, setAutoAperture()
 */
 qreal QDeclarativeCameraExposure::manualAperture() const
 {
     return m_manualAperture;
 }

 void QDeclarativeCameraExposure::setManualAperture(qreal aperture)
 {
     m_manualAperture = aperture;
     if (aperture > 0)
         m_exposure->setManualAperture(aperture);
     else
         m_exposure->setAutoAperture();

     emit manualApertureChanged(aperture);
 }

 /*!
     \qmlmethod QtMultimedia::CameraExposure::setAutoAperture()
   Turn on auto aperture selection. The manual aperture value is reset to -1.0
  */
 void QDeclarativeCameraExposure::setAutoAperture()
 {
     setManualAperture(-1.0);
 }

 /*!
     \qmlmethod QtMultimedia::CameraExposure::setAutoShutterSpeed()
   Turn on auto shutter speed selection. The manual shutter speed value is reset to -1.0
  */
 void QDeclarativeCameraExposure::setAutoShutterSpeed()
 {
     setManualShutterSpeed(-1.0);
 }

 /*!
     \qmlmethod QtMultimedia::CameraExposure::setAutoIsoSensitivity()
   Turn on auto ISO sensitivity selection. The manual ISO value is reset to -1.
  */
 void QDeclarativeCameraExposure::setAutoIsoSensitivity()
 {
     setManualIsoSensitivity(-1);
 }
 /*!
     \property QDeclarativeCameraExposure::exposureMode

     This property holds the camera exposure mode. The mode can one of the values in \l QCameraExposure::ExposureMode.
 */
 /*!
     \qmlproperty enumeration QtMultimedia::CameraExposure::exposureMode

     This property holds the camera exposure mode.

     The mode can be one of the following:

     \table
     \header \li Value \li Description
     \row \li Camera.ExposureManual        \li Manual mode.
     \row \li Camera.ExposureAuto          \li Automatic mode.
     \row \li Camera.ExposureNight         \li Night mode.
     \row \li Camera.ExposureBacklight     \li Backlight exposure mode.
     \row \li Camera.ExposureSpotlight     \li Spotlight exposure mode.
     \row \li Camera.ExposureSports        \li Spots exposure mode.
     \row \li Camera.ExposureSnow          \li Snow exposure mode.
     \row \li Camera.ExposureBeach         \li Beach exposure mode.
     \row \li Camera.ExposureLargeAperture \li Use larger aperture with small depth of field.
     \row \li Camera.ExposureSmallAperture \li Use smaller aperture.
     \row \li Camera.ExposurePortrait      \li Portrait exposure mode.
     \row \li Camera.ExposureAction        \li Action exposure mode.  Since 5.5
     \row \li Camera.ExposureLandscape     \li Landscape exposure mode.  Since 5.5
     \row \li Camera.ExposureNightPortrait \li Night portrait exposure mode.  Since 5.5
     \row \li Camera.ExposureTheatre       \li Theatre exposure mode.  Since 5.5
     \row \li Camera.ExposureSunset        \li Sunset exposure mode.  Since 5.5
     \row \li Camera.ExposureSteadyPhoto   \li Steady photo exposure mode.  Since 5.5
     \row \li Camera.ExposureFireworks     \li Fireworks exposure mode.  Since 5.5
     \row \li Camera.ExposureParty         \li Party exposure mode.  Since 5.5
     \row \li Camera.ExposureCandlelight   \li Candlelight exposure mode.  Since 5.5
     \row \li Camera.ExposureBarcode       \li Barcode exposure mode.  Since 5.5
     \row \li Camera.ExposureModeVendor    \li The base value for device specific exposure modes.
     \endtable
 */

 QDeclarativeCameraExposure::ExposureMode QDeclarativeCameraExposure::exposureMode() const
 {
     return QDeclarativeCameraExposure::ExposureMode(m_exposure->exposureMode());
 }

 void QDeclarativeCameraExposure::setExposureMode(QDeclarativeCameraExposure::ExposureMode mode)
 {
     if (exposureMode() != mode) {
         m_exposure->setExposureMode(QCameraExposure::ExposureMode(mode));
         emit exposureModeChanged(exposureMode());
     }
 }

 /*!
     \qmlproperty list<ExposureMode> QtMultimedia::CameraExposure::supportedExposureModes

     This property holds the supported exposure modes of the camera.

     \since 5.11
     \sa exposureMode
  */
 QVariantList QDeclarativeCameraExposure::supportedExposureModes() const
 {
     QVariantList supportedModes;

     for (int i = int(ExposureAuto); i <= int(QCameraExposure::ExposureBarcode); ++i) {
         if (m_exposure->isExposureModeSupported((QCameraExposure::ExposureMode) i))
             supportedModes.append(QVariant(i));
     }

     return supportedModes;
 }

 /*!
     \property QDeclarativeCameraExposure::spotMeteringPoint

     This property holds the relative frame coordinates of the point to use
     for exposure metering. This point is only used in spot metering mode, and it
     typically defaults to the center \c (0.5, 0.5).
  */
 /*!
     \qmlproperty QPointF QtMultimedia::CameraExposure::spotMeteringPoint

     The property holds the frame coordinates of the point to use for exposure metering.
     This point is only used in spot metering mode, and it typically defaults
     to the center \c (0.5, 0.5).
  */

 QPointF QDeclarativeCameraExposure::spotMeteringPoint() const
 {
     return m_exposure->spotMeteringPoint();
 }

 void QDeclarativeCameraExposure::setSpotMeteringPoint(const QPointF &point)
 {
     QPointF oldPoint(spotMeteringPoint());
     m_exposure->setSpotMeteringPoint(point);

     if (oldPoint != spotMeteringPoint())
         emit spotMeteringPointChanged(spotMeteringPoint());
 }
 /*!
     \property QDeclarativeCameraExposure::meteringMode

     This property holds the camera metering mode (how exposure is balanced).
     The mode can be one of the constants in \l QCameraExposure::MeteringMode.
 */
 /*!
     \qmlproperty enumeration QtMultimedia::CameraExposure::meteringMode

     This property holds the camera metering mode (how exposure is balanced).

     The mode can be one of the following:

     \table
     \header \li Value \li Description
     \row \li Camera.MeteringMatrix       \li A matrix of sample points is used to measure exposure.
     \row \li Camera.MeteringAverage      \li An average is used to measure exposure.
     \row \li Camera.MeteringSpot         \li A specific location (\l spotMeteringPoint) is used to measure exposure.
     \endtable
 */
 QDeclarativeCameraExposure::MeteringMode QDeclarativeCameraExposure::meteringMode() const
 {
     return QDeclarativeCameraExposure::MeteringMode(m_exposure->meteringMode());
 }

 void QDeclarativeCameraExposure::setMeteringMode(QDeclarativeCameraExposure::MeteringMode mode)
 {
     QDeclarativeCameraExposure::MeteringMode oldMode = meteringMode();
     m_exposure->setMeteringMode(QCameraExposure::MeteringMode(mode));
     if (oldMode != meteringMode())
         emit meteringModeChanged(meteringMode());
 }

 QT_END_NAMESPACE

 #include "moc_qdeclarativecameraexposure_p.cpp"
	/****************************************************************************
	**
	** Copyright (C) 2016 The Qt Company Ltd.
	** Contact: https://www.qt.io/licensing/
	**
	** This file is part of the plugins 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 The Qt Company. For licensing terms
	** and conditions see https://www.qt.io/terms-conditions. For further
	** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
	** Foundation and appearing in the file LICENSE.LGPL3 included in the
	** packaging of this file. Please review the following information to
	** ensure the GNU Lesser General Public License version 3 requirements
	** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
	**
	** GNU General Public License Usage
	** Alternatively, this file may be used under the terms of the GNU
	** General Public License version 2.0 or (at your option) the GNU General
	** Public license version 3 or any later version approved by the KDE Free
	** Qt Foundation. The licenses are as published by the Free Software
	** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
	** included in the packaging of this file. Please review the following
	** information to ensure the GNU General Public License requirements will
	** be met: https://www.gnu.org/licenses/gpl-2.0.html and
	** https://www.gnu.org/licenses/gpl-3.0.html.
	**
	** $QT_END_LICENSE$
	**
	****************************************************************************/

	#include "qdeclarativecamera_p.h"
	#include "qdeclarativecameraexposure_p.h"

	QT_BEGIN_NAMESPACE

	/*!
	\qmltype CameraExposure
	\instantiates QDeclarativeCameraExposure
	\brief An interface for exposure related camera settings.
	\ingroup multimedia_qml
	\ingroup camera_qml
	\inqmlmodule QtMultimedia

	CameraExposure allows you to adjust exposure related settings
	like aperture and shutter speed, metering and ISO speed.

	It should not be constructed separately, instead the
	\c exposure property of the a \l Camera should be used.

	\qml

	Camera {
	id: camera

	exposure.exposureCompensation: -1.0
	exposure.exposureMode: Camera.ExposurePortrait
	}

	\endqml

	Several settings have both an automatic and a manual mode. In
	the automatic modes the camera software itself will decide what
	a reasonable setting is, but in most cases these settings can
	be overridden with a specific manual setting.

	For example, to select automatic shutter speed selection:

	\code
	camera.exposure.setAutoShutterSpeed()
	\endcode

	Or for a specific shutter speed:

	\code
	camera.exposure.manualShutterSpeed = 0.01 // 10ms
	\endcode

	You can only choose one or the other mode.
	*/

	/*!
	\internal
	\class QDeclarativeCameraExposure
	\brief The CameraExposure provides interface for exposure related camera settings.

	*/

	/*!
	Construct a declarative camera exposure object using \a parent object.
	*/
	QDeclarativeCameraExposure::QDeclarativeCameraExposure(QCamera camera, QObject parent) :
	QObject(parent)
	{
	m_exposure = camera->exposure();

	connect(m_exposure, SIGNAL(isoSensitivityChanged(int)), this, SIGNAL(isoSensitivityChanged(int)));
	connect(m_exposure, SIGNAL(apertureChanged(qreal)), this, SIGNAL(apertureChanged(qreal)));
	connect(m_exposure, SIGNAL(shutterSpeedChanged(qreal)), this, SIGNAL(shutterSpeedChanged(qreal)));

	connect(m_exposure, SIGNAL(exposureCompensationChanged(qreal)), this, SIGNAL(exposureCompensationChanged(qreal)));
	connect(camera, &QCamera::statusChanged, [this](QCamera::Status status) {
	if (status != QCamera::UnloadedStatus && status != QCamera::LoadedStatus
	&& status != QCamera::ActiveStatus) {
	return;
	}

	emit supportedExposureModesChanged();
	});
	}

	QDeclarativeCameraExposure::~QDeclarativeCameraExposure()
	{
	}
	/*!
	\property QDeclarativeCameraExposure::exposureCompensation

	This property holds the adjustment value for the automatically calculated exposure. The value is in EV units.
	*/
	/*!
	\qmlproperty real QtMultimedia::CameraExposure::exposureCompensation

	This property holds the adjustment value for the automatically calculated exposure. The value is
	in EV units.
	*/
	qreal QDeclarativeCameraExposure::exposureCompensation() const
	{
	return m_exposure->exposureCompensation();
	}

	void QDeclarativeCameraExposure::setExposureCompensation(qreal ev)
	{
	m_exposure->setExposureCompensation(ev);
	}
	/*!
	\property QDeclarativeCameraExposure::iso

	This property holds the sensor's ISO sensitivity value.
	*/
	/*!
	\qmlproperty int QtMultimedia::CameraExposure::iso

	This property holds the sensor's ISO sensitivity value.
	*/
	int QDeclarativeCameraExposure::isoSensitivity() const
	{
	return m_exposure->isoSensitivity();
	}
	/*!
	\property QDeclarativeCameraExposure::shutterSpeed

	This property holds the camera's shutter speed value in seconds.
	To affect the shutter speed you can use the \l manualShutterSpeed
	property and \l setAutoShutterSpeed().

	*/
	/*!
	\qmlproperty real QtMultimedia::CameraExposure::shutterSpeed

	This property holds the camera's current shutter speed value in seconds.
	To affect the shutter speed you can use the \l manualShutterSpeed
	property and \l setAutoShutterSpeed().

	*/
	qreal QDeclarativeCameraExposure::shutterSpeed() const
	{
	return m_exposure->shutterSpeed();
	}
	/*!
	\property QDeclarativeCameraExposure::aperture

	This property holds the current lens aperture as an F number (the ratio of the focal length to effective aperture diameter).

	\sa manualAperture, setAutoAperture()
	*/
	/*!
	\qmlproperty real QtMultimedia::CameraExposure::aperture

	This property holds the current lens aperture as an F number (the ratio of
	the focal length to effective aperture diameter).

	\sa manualAperture, setAutoAperture()
	*/
	qreal QDeclarativeCameraExposure::aperture() const
	{
	return m_exposure->aperture();
	}
	/*!
	\property QDeclarativeCameraExposure::manualIso

	This property holds the ISO settings for capturing photos.

	If the value is negative, the camera will
	automatically determine an appropriate value.

	\sa iso, setAutoIsoSensitivity()
	*/
	/*!
	\qmlproperty real QtMultimedia::CameraExposure::manualIso

	This property holds the ISO settings for capturing photos.

	If a negative value is specified, the camera will
	automatically determine an appropriate value.

	\sa iso, setAutoIsoSensitivity()
	*/

	int QDeclarativeCameraExposure::manualIsoSensitivity() const
	{
	return m_manualIso;
	}

	void QDeclarativeCameraExposure::setManualIsoSensitivity(int iso)
	{
	m_manualIso = iso;
	if (iso > 0)
	m_exposure->setManualIsoSensitivity(iso);
	else
	m_exposure->setAutoIsoSensitivity();

	emit manualIsoSensitivityChanged(iso);
	}
	/*!
	\property QDeclarativeCameraExposure::manualShutterSpeed

	This property holds the shutter speed value (in seconds).
	If the value is less than zero, the camera automatically
	determines an appropriate shutter speed.

	\l shutterSpeed, setAutoShutterSpeed()
	*/
	/*!
	\qmlproperty real QtMultimedia::CameraExposure::manualShutterSpeed

	This property holds the shutter speed value (in seconds).
	If the value is less than zero, the camera automatically
	determines an appropriate shutter speed.

	\l shutterSpeed, setAutoShutterSpeed()
	*/
	qreal QDeclarativeCameraExposure::manualShutterSpeed() const
	{
	return m_manualShutterSpeed;
	}

	void QDeclarativeCameraExposure::setManualShutterSpeed(qreal speed)
	{
	m_manualShutterSpeed = speed;
	if (speed > 0)
	m_exposure->setManualShutterSpeed(speed);
	else
	m_exposure->setAutoShutterSpeed();

	emit manualShutterSpeedChanged(speed);
	}
	/*!
	\property QDeclarativeCameraExposure::manualAperture

	This property holds aperture (F number) value
	for capturing photos.

	If the value is less than zero,
	the camera automatically determines an appropriate aperture value.

	\l aperture, setAutoAperture()
	*/
	/*!
	\qmlproperty real QtMultimedia::CameraExposure::manualAperture

	This property holds the aperture (F number) value
	for capturing photos.

	If the value is less than zero, the camera automatically
	determines an appropriate aperture value.

	\l aperture, setAutoAperture()
	*/
	qreal QDeclarativeCameraExposure::manualAperture() const
	{
	return m_manualAperture;
	}

	void QDeclarativeCameraExposure::setManualAperture(qreal aperture)
	{
	m_manualAperture = aperture;
	if (aperture > 0)
	m_exposure->setManualAperture(aperture);
	else
	m_exposure->setAutoAperture();

	emit manualApertureChanged(aperture);
	}

	/*!
	\qmlmethod QtMultimedia::CameraExposure::setAutoAperture()
	Turn on auto aperture selection. The manual aperture value is reset to -1.0
	*/
	void QDeclarativeCameraExposure::setAutoAperture()
	{
	setManualAperture(-1.0);
	}

	/*!
	\qmlmethod QtMultimedia::CameraExposure::setAutoShutterSpeed()
	Turn on auto shutter speed selection. The manual shutter speed value is reset to -1.0
	*/
	void QDeclarativeCameraExposure::setAutoShutterSpeed()
	{
	setManualShutterSpeed(-1.0);
	}

	/*!
	\qmlmethod QtMultimedia::CameraExposure::setAutoIsoSensitivity()
	Turn on auto ISO sensitivity selection. The manual ISO value is reset to -1.
	*/
	void QDeclarativeCameraExposure::setAutoIsoSensitivity()
	{
	setManualIsoSensitivity(-1);
	}
	/*!
	\property QDeclarativeCameraExposure::exposureMode

	This property holds the camera exposure mode. The mode can one of the values in \l QCameraExposure::ExposureMode.
	*/
	/*!
	\qmlproperty enumeration QtMultimedia::CameraExposure::exposureMode

	This property holds the camera exposure mode.

	The mode can be one of the following:

	\table
	\header \li Value \li Description
	\row \li Camera.ExposureManual \li Manual mode.
	\row \li Camera.ExposureAuto \li Automatic mode.
	\row \li Camera.ExposureNight \li Night mode.
	\row \li Camera.ExposureBacklight \li Backlight exposure mode.
	\row \li Camera.ExposureSpotlight \li Spotlight exposure mode.
	\row \li Camera.ExposureSports \li Spots exposure mode.
	\row \li Camera.ExposureSnow \li Snow exposure mode.
	\row \li Camera.ExposureBeach \li Beach exposure mode.
	\row \li Camera.ExposureLargeAperture \li Use larger aperture with small depth of field.
	\row \li Camera.ExposureSmallAperture \li Use smaller aperture.
	\row \li Camera.ExposurePortrait \li Portrait exposure mode.
	\row \li Camera.ExposureAction \li Action exposure mode. Since 5.5
	\row \li Camera.ExposureLandscape \li Landscape exposure mode. Since 5.5
	\row \li Camera.ExposureNightPortrait \li Night portrait exposure mode. Since 5.5
	\row \li Camera.ExposureTheatre \li Theatre exposure mode. Since 5.5
	\row \li Camera.ExposureSunset \li Sunset exposure mode. Since 5.5
	\row \li Camera.ExposureSteadyPhoto \li Steady photo exposure mode. Since 5.5
	\row \li Camera.ExposureFireworks \li Fireworks exposure mode. Since 5.5
	\row \li Camera.ExposureParty \li Party exposure mode. Since 5.5
	\row \li Camera.ExposureCandlelight \li Candlelight exposure mode. Since 5.5
	\row \li Camera.ExposureBarcode \li Barcode exposure mode. Since 5.5
	\row \li Camera.ExposureModeVendor \li The base value for device specific exposure modes.
	\endtable
	*/

	QDeclarativeCameraExposure::ExposureMode QDeclarativeCameraExposure::exposureMode() const
	{
	return QDeclarativeCameraExposure::ExposureMode(m_exposure->exposureMode());
	}

	void QDeclarativeCameraExposure::setExposureMode(QDeclarativeCameraExposure::ExposureMode mode)
	{
	if (exposureMode() != mode) {
	m_exposure->setExposureMode(QCameraExposure::ExposureMode(mode));
	emit exposureModeChanged(exposureMode());
	}
	}

	/*!
	\qmlproperty list<ExposureMode> QtMultimedia::CameraExposure::supportedExposureModes

	This property holds the supported exposure modes of the camera.

	\since 5.11
	\sa exposureMode
	*/
	QVariantList QDeclarativeCameraExposure::supportedExposureModes() const
	{
	QVariantList supportedModes;

	for (int i = int(ExposureAuto); i <= int(QCameraExposure::ExposureBarcode); ++i) {
	if (m_exposure->isExposureModeSupported((QCameraExposure::ExposureMode) i))
	supportedModes.append(QVariant(i));
	}

	return supportedModes;
	}

	/*!
	\property QDeclarativeCameraExposure::spotMeteringPoint

	This property holds the relative frame coordinates of the point to use
	for exposure metering. This point is only used in spot metering mode, and it
	typically defaults to the center \c (0.5, 0.5).
	*/
	/*!
	\qmlproperty QPointF QtMultimedia::CameraExposure::spotMeteringPoint

	The property holds the frame coordinates of the point to use for exposure metering.
	This point is only used in spot metering mode, and it typically defaults
	to the center \c (0.5, 0.5).
	*/

	QPointF QDeclarativeCameraExposure::spotMeteringPoint() const
	{
	return m_exposure->spotMeteringPoint();
	}

	void QDeclarativeCameraExposure::setSpotMeteringPoint(const QPointF &point)
	{
	QPointF oldPoint(spotMeteringPoint());
	m_exposure->setSpotMeteringPoint(point);

	if (oldPoint != spotMeteringPoint())
	emit spotMeteringPointChanged(spotMeteringPoint());
	}
	/*!
	\property QDeclarativeCameraExposure::meteringMode

	This property holds the camera metering mode (how exposure is balanced).
	The mode can be one of the constants in \l QCameraExposure::MeteringMode.
	*/
	/*!
	\qmlproperty enumeration QtMultimedia::CameraExposure::meteringMode

	This property holds the camera metering mode (how exposure is balanced).

	The mode can be one of the following:

	\table
	\header \li Value \li Description
	\row \li Camera.MeteringMatrix \li A matrix of sample points is used to measure exposure.
	\row \li Camera.MeteringAverage \li An average is used to measure exposure.
	\row \li Camera.MeteringSpot \li A specific location (\l spotMeteringPoint) is used to measure exposure.
	\endtable
	*/
	QDeclarativeCameraExposure::MeteringMode QDeclarativeCameraExposure::meteringMode() const
	{
	return QDeclarativeCameraExposure::MeteringMode(m_exposure->meteringMode());
	}

	void QDeclarativeCameraExposure::setMeteringMode(QDeclarativeCameraExposure::MeteringMode mode)
	{
	QDeclarativeCameraExposure::MeteringMode oldMode = meteringMode();
	m_exposure->setMeteringMode(QCameraExposure::MeteringMode(mode));
	if (oldMode != meteringMode())
	emit meteringModeChanged(meteringMode());
	}

	QT_END_NAMESPACE

	#include "moc_qdeclarativecameraexposure_p.cpp"