Provides a control interface for image capture services. More...

Inheritance diagram for QCameraImageCaptureControl:

Public Signals
void	error (int id, int error, const QString &errorString)

void	imageAvailable (int id, const QVideoFrame &buffer)

void	imageCaptured (int id, const QImage &preview)

void	imageExposed (int id)

void	imageMetadataAvailable (int id, const QString &key, const QVariant &value)

void	imageSaved (int id, const QString &fileName)

void	readyForCaptureChanged (bool ready)

Public Signals inherited from QObject
void	destroyed (QObject *obj=nullptr)

void	objectNameChanged (const QString &objectName)

Public Methods
	~QCameraImageCaptureControl ()

virtual void	cancelCapture () = 0

virtual int	capture (const QString &fileName) = 0

virtual QCameraImageCapture::DriveMode	driveMode () const = 0

virtual bool	isReadyForCapture () const = 0

virtual void	setDriveMode (QCameraImageCapture::DriveMode mode) = 0

Public Methods inherited from QMediaControl
	~QMediaControl ()

Public Methods inherited from QObject
	QObject (QObject *parent=nullptr)

	~QObject ()

bool	blockSignals (bool block)

const QList< QObject * > &	children () const

bool	connect (const QObject *sender, const QString &signalMethod, const QString &location, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)

bool	connect (const QObject *sender, const QString &signalMethod, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)

bool	disconnect (const QObject *receiver, const QString &slotMethod=QString ()) const

bool	disconnect (const QString &signalMethod, const QString &location, const QObject *receiver=nullptr, const QString &slotMethod=QString ()) const

bool	disconnect (const QString &signalMethod=QString (), const QObject *receiver=nullptr, const QString &slotMethod=QString ()) const

void	dumpObjectInfo ()

void	dumpObjectTree ()

QList< QString >	dynamicPropertyNames () const

virtual bool	event (QEvent *event)

virtual bool	eventFilter (QObject watched, QEvent event)

template<typename T >
T	findChild (const QString &childName=QString ()) const

template<class T >
QList< T >	findChildren (const QRegularExpression &regExp, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

template<class T >
QList< T >	findChildren (const QString &childName=QString (), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

bool	inherits (const QString &className) const

void	installEventFilter (QObject *filterObj)

bool	isWidgetType () const

bool	isWindowType () const

void	killTimer (int id)

const QMetaObject *	metaObject () const

void	moveToThread (QThread *targetThread)

QString	objectName () const

QObject *	parent () const

template<class T = QVariant>
T	property (const QString &name) const

void	removeEventFilter (QObject *obj)

void	setObjectName (const QString &name)

void	setParent (QObject *parent)

bool	setProperty (const QString &name, const QVariant &value)

bool	signalsBlocked () const

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)

QThread *	thread () const

Protected Methods
	QCameraImageCaptureControl (QObject *parent=nullptr)

Protected Methods inherited from QMediaControl
	QMediaControl (QObject *parent=nullptr)

Protected Methods inherited from QObject
virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const QMetaMethod &signalMethod) const

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const QMetaMethod &signalMethod) const

bool	isSignalConnected (const QMetaMethod &signalMethod) const

int	receivers (const QString &signal) const

QObject *	sender () const

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *event)

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()

Static Public Methods inherited from QObject
static bool	connect (const QObject sender, const QMetaMethod &signalMethod, const QObject receiver, const QMetaMethod &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)

static bool	connect (const QObject sender, const QString &signalMethod, const QObject receiver, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection, const QString &location=QString ())

static bool	connect (const QObject sender, const QString &signalMethod, const QString &location, const QObject receiver, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)

template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class SlotClass , class... SlotArgs, class SlotReturn >
static bool	connect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver receiver, SlotReturn (SlotClass::slotMethod)(SlotArgs...), Qt::ConnectionType type=Qt::AutoConnection)

template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class T >
static bool	connect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver *receiver, T slotLambda, Qt::ConnectionType type=Qt::AutoConnection)

static bool	disconnect (const QObject sender, const QMetaMethod &signalMethod, const QObject receiver, const QMetaMethod &slotMethod)

static bool	disconnect (const QObject sender, const QString &signalMethod, const QObject receiver, const QString &slotMethod)

static bool	disconnect (const QObject sender, const QString &signalMethod, const QString &location, const QObject receiver, const QString &slotMethod)

static bool	disconnect (const QObject sender, std::nullptr_t, const QObject receiver, std::nullptr_t)

template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class SlotClass , class... SlotArgs, class SlotReturn >
static bool	disconnect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver receiver, SlotReturn (SlotClass::slotMethod)(SlotArgs...))

template<class Sender , class SignalClass , class... SignalArgs, class Receiver >
static bool	disconnect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver *receiver, std::nullptr_t slotMethod=nullptr)

template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class T >
static bool	disconnect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver *receiver, T slotMethod)

static QMetaObject &	staticMetaObject ()

static QString	tr (const char text, const char comment=nullptr, std::optional< int > numArg=std::optional< int >())

Properties inherited from QObject
	objectName

Related Functions inherited from QObject
T	qobject_cast (QObject *object)

	QObjectList

Detailed Description

The QCameraImageCaptureControl class provides a control interface for image capture services.

The interface name of QCameraImageCaptureControl is "com.copperspice.CS.cameraImageCaptureControl/1.0" as defined in QCameraImageCaptureControl_iid.

See also: QMediaService::requestControl()

Constructor & Destructor Documentation

QCameraImageCaptureControl::~QCameraImageCaptureControl ( )

Destroys this image capture object.

QCameraImageCaptureControl::QCameraImageCaptureControl ( QObject * parent = nullptr )

explicitprotected

Constructs a new QCameraImageCaptureControl object with the given parent.

Method Documentation

void QCameraImageCaptureControl::cancelCapture ( )

pure virtual

Cancel pending capture requests.

int QCameraImageCaptureControl::capture ( const QString & fileName )

pure virtual

Initiates the capture of an image to fileName. The fileName can be relative or empty, in this case the service should use the system specific place and file naming scheme.

The Camera service should save all the capture parameters like exposure settings or image processing parameters, so changes to camera parameters after capture() is called do not affect previous capture requests.

Returns the capture request id number, which is used later with imageExposed(), imageCaptured() and imageSaved() signals.

QCameraImageCapture::DriveMode QCameraImageCaptureControl::driveMode ( ) const

pure virtual

Returns the current camera drive mode.

See also: setDriveMode()

void QCameraImageCaptureControl::error	(	int	id,
		int	error,
		const QString &	errorString
	)

signal

Signals the capture request id failed with the given error code and message errorString.

See also: QCameraImageCapture::Error

void QCameraImageCaptureControl::imageAvailable	(	int	id,
		const QVideoFrame &	buffer
	)

signal

This signal indicates a captured buffer with a corresponding id is available.

void QCameraImageCaptureControl::imageCaptured	(	int	id,
		const QImage &	preview
	)

signal

This signal indicates an image with a given id has been captured and a preview is available.

void QCameraImageCaptureControl::imageExposed ( int id )

signal

Signals an image with the given id has just been exposed. This signal can be used for the shutter sound or other indications.

void QCameraImageCaptureControl::imageMetadataAvailable	(	int	id,
		const QString &	key,
		const QVariant &	value
	)

signal

Signals the metadata for an image with the requested id is available. The key and value contain the metadata. This signal should be emitted between imageExposed and imageSaved signals.

void QCameraImageCaptureControl::imageSaved	(	int	id,
		const QString &	fileName
	)

signal

Signals a captured image with a id has been saved to fileName.

bool QCameraImageCaptureControl::isReadyForCapture ( ) const

pure virtual

Identifies if a capture control is ready to perform a capture immediately (all the resources necessary for image capture are allocated, hardware initialized, flash is charged, etc).

Returns true if the camera is ready for capture; and false if it is not.

It is permissible to call capture() while the camera status is QCamera::ActiveStatus regardless of isReadyForCapture property value. If camera is not ready to capture image immediately, the capture request is queued with all the related camera settings to be executed as soon as possible.

void QCameraImageCaptureControl::readyForCaptureChanged ( bool ready )

signal

This signal indicates the ready state has changed.

void QCameraImageCaptureControl::setDriveMode ( QCameraImageCapture::DriveMode mode )

pure virtual

Sets the current camera drive mode.

See also: driveMode()

Public Signals

Public Methods

Protected Methods

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Method Documentation