QObjectPrivate Class Reference

#include <qobject_p.h>

Inherits QObjectData.

Inherited by MyClassPrivate, QAbstractAnimationPrivate, QAbstractEventDispatcherPrivate, QAbstractItemDelegatePrivate, QAbstractItemModelPrivate, QAbstractItemModelTesterPrivate, QAbstractNetworkCachePrivate, QAbstractSocketEnginePrivate, QAbstractTextDocumentLayoutPrivate, QActionGroupPrivate, QActionPrivate, QAnimationDriverPrivate, QAudioDecoderPrivate, QButtonGroupPrivate, QCameraPrivate, QCompleterPrivate, QCoreApplicationPrivate, QDBusAbstractAdaptorPrivate, QDBusAbstractInterfacePrivate, QDBusServiceWatcherPrivate, QDataWidgetMapperPrivate, QDnsLookupPrivate, QDragPrivate, QDtlsClientVerifierPrivate, QDtlsPrivate, QEventLoopPrivate, QFactoryLoaderPrivate, QFileSelectorPrivate [private], QFileSystemWatcherPrivate, QFutureWatcherBasePrivate, QGeoAreaMonitorSourcePrivate, QGeoMapPrivate, QGeoPositionInfoSourcePrivate, QGeoRouteParserPrivate, QGeoSatelliteInfoSourcePrivate, QGeoTileFetcherPrivate, QGeoTiledMapScenePrivate, QGesturePrivate, QGraphicsAnchorPrivate, QGraphicsEffectPrivate, QGraphicsEffectSourcePrivate, QGraphicsSceneIndexPrivate, QGraphicsScenePrivate, QGraphicsTransformPrivate, QHttpMultiPartPrivate, QHttpNetworkConnectionPrivate, QHttpNetworkReplyPrivate, QIODevicePrivate, QInputDeviceManagerPrivate, QInputDevicePrivate, QInputMethodPrivate, QItemSelectionModelPrivate, QJSEnginePrivate, QLanguageServerPrivate, QLayoutPrivate, QLocalServerPrivate, QMediaPlayerPrivate, QMimeDataPrivate, QMoviePrivate, QNetworkAccessBackendPrivate, QNetworkAccessManagerPrivate, QNetworkConnectionMonitorPrivate, QNetworkConnectionMonitorPrivate, QNetworkConnectionMonitorPrivate, QNetworkCookieJarPrivate, QNetworkInformationPrivate, QOffscreenSurfacePrivate, QOpenGLContextGroupPrivate, QOpenGLContextPrivate, QOpenGLDebugLoggerPrivate, QOpenGLShaderPrivate, QOpenGLShaderProgramPrivate, QOpenGLTimeMonitorPrivate, QOpenGLTimerQueryPrivate, QOpenGLVertexArrayObjectPrivate, QPacketProtocolPrivate, QPdfWriterPrivate, QPixmapFilterPrivate, QPlatformInputContextPrivate, QPlatformTextureListPrivate, QQC2::QStylePrivate, QQmlApplicationPrivate, QQmlBindPrivate, QQmlComponentPrivate, QQmlConnectionsPrivate, QQmlContextPrivate, QQmlDebugClientPrivate, QQmlDebugConnectionPrivate, QQmlDebugServicePrivate, QQmlDelegateModelGroupPrivate, QQmlDelegateModelPrivate, QQmlExpressionPrivate, QQmlFileSelectorPrivate, QQmlInstantiatorPrivate, QQmlObjectModelPrivate, QQmlPropertyMapPrivate, QQmlTimerPrivate, QQuick3DObjectPrivate, QQuickAbstractAnimationPrivate, QQuickActionGroupAttachedPrivate, QQuickActionGroupPrivate, QQuickActionPrivate, QQuickAnchorSetPrivate, QQuickAnchorsPrivate, QQuickAnimationControllerPrivate, QQuickApplicationWindowAttachedPrivate, QQuickAttachedPropertyPropagatorPrivate, QQuickBehaviorPrivate, QQuickBoundaryRulePrivate, QQuickButtonGroupAttachedPrivate, QQuickButtonGroupPrivate, QQuickColorDialogImplAttachedPrivate, QQuickDeliveryAgentPrivate, QQuickDialogButtonBoxAttachedPrivate, QQuickDragAttachedPrivate, QQuickFileDialogImplAttachedPrivate, QQuickFolderDialogImplAttachedPrivate, QQuickFontDialogImplAttachedPrivate, QQuickFontLoaderPrivate, QQuickFrameAnimationPrivate, QQuickImageResponsePrivate, QQuickIndicatorButtonPrivate, QQuickItemGrabResultPrivate, QQuickItemPrivate, QQuickKeyNavigationAttachedPrivate, QQuickKeysAttachedPrivate, QQuickMessageDialogImplAttachedPrivate, QQuickOverlayAttachedPrivate, QQuickPackagePrivate, QQuickPathPrivate, QQuickPointerHandlerPrivate, QQuickPopupAnchorsPrivate, QQuickPopupPrivate, QQuickRangeSliderNodePrivate, QQuickRenderControlPrivate, QQuickScrollBarAttachedPrivate, QQuickScrollIndicatorAttachedPrivate, QQuickSplitHandleAttachedPrivate, QQuickSplitViewAttachedPrivate, QQuickStackViewAttachedPrivate, QQuickStateGroupPrivate, QQuickStateOperationPrivate, QQuickStatePrivate, QQuickSwipeDelegateAttachedPrivate, QQuickSwipePrivate, QQuickSwipeViewAttachedPrivate, QQuickSystemPalettePrivate, QQuickTabBarAttachedPrivate, QQuickTextAreaAttachedPrivate, QQuickTextControlPrivate, QQuickTextDocumentPrivate, QQuickToolTipAttachedPrivate, QQuickTransformPrivate, QQuickTransitionPrivate, QQuickTumblerAttachedPrivate, QRestAccessManagerPrivate, QSGAbstractRendererPrivate, QSGTexturePrivate, QScreenCapturePrivate, QScreenPrivate, QSessionManagerPrivate, QSettingsPrivate, QSharedImageLoaderPrivate, QShortcutPrivate, QSignalMapperPrivate, QSocketNotifierPrivate, QSqlDriverPrivate, QStyleHintsPrivate, QStylePrivate, QSvgRendererPrivate, QSyntaxHighlighterPrivate, QSystemTrayIconPrivate, QTcpServerPrivate, QTextDocumentPrivate, QTextObjectPrivate, QThreadPoolPrivate, QThreadPrivate, QTimeLinePrivate, QTimerPrivate, QTranslatorPrivate, QUndoGroupPrivate, QValidatorPrivate, QWavefrontMeshPrivate, QWaylandClientExtensionPrivate, QWaylandClientPrivate, QWaylandCompositorExtensionPrivate, QWaylandCompositorPrivate, QWaylandDestroyListenerPrivate, QWaylandDragPrivate, QWaylandInputMethodControlPrivate, QWaylandKeyboardPrivate, QWaylandKeymapPrivate, QWaylandOutputPrivate, QWaylandPointerPrivate, QWaylandQuickHardwareLayerPrivate, QWaylandSeatPrivate, QWaylandSurfaceGrabberPrivate, QWaylandSurfacePrivate, QWaylandTouchPrivate, QWaylandViewPrivate, QWaylandXdgOutputV1Private, QWaylandXdgPopupPrivate, QWaylandXdgToplevelPrivate, QWidgetPrivate, QWidgetTextControlPrivate, QWinEventNotifierPrivate, QWindowCapturePrivate, QWindowPrivate, and QtWaylandClient::QWaylandAbstractDecorationPrivate.

Collaboration diagram for QObjectPrivate:

Classes
struct	Connection
struct	ConnectionData
struct	ConnectionList
struct	ConnectionOrSignalVector
struct	ExtraData
struct	Sender
struct	SignalVector
struct	TaggedSignalVector

Public Types
typedef void(*	StaticMetaCallFunction) (QObject *, QMetaObject::Call, int, void **)
using	ConnectionDataPointer = QExplicitlySharedDataPointer<ConnectionData>

Public Member Functions
void	ensureExtraData ()
	QObjectPrivate (int version=QObjectPrivateVersion)
virtual	~QObjectPrivate ()
void	deleteChildren ()
void	clearBindingStorage ()
void	checkForIncompatibleLibraryVersion (int version) const
void	setParent_helper (QObject *)
void	moveToThread_helper ()
void	setThreadData_helper (QThreadData *currentData, QThreadData *targetData, QBindingStatus *status)
QObjectList	receiverList (const char *signal) const
void	ensureConnectionData ()
void	addConnection (int signal, Connection *c)
int	signalIndex (const char *signalName, const QMetaObject **meta=nullptr) const
bool	isSignalConnected (uint signalIdx, bool checkDeclarative=true) const
bool	maybeSignalConnected (uint signalIndex) const
bool	isDeclarativeSignalConnected (uint signalIdx) const
void	connectNotify (const QMetaMethod &signal)
void	disconnectNotify (const QMetaMethod &signal)
void	reinitBindingStorageAfterThreadMove ()
virtual std::string	flagsForDumping () const
virtual void	writeToDebugStream (QDebug &) const
QtPrivate::QPropertyAdaptorSlotObject *	getPropertyAdaptorSlotObject (const QMetaProperty &property)
Public Member Functions inherited from QObjectData
	QObjectData ()=default
virtual	~QObjectData ()=0
QMetaObject *	dynamicMetaObject () const

Static Public Member Functions
static bool	removeConnection (Connection *c)
static QObjectPrivate *	get (QObject *o)
static const QObjectPrivate *	get (const QObject *o)
template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiverPrivate, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)
template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiverPrivate, Func2 slot)
static QMetaObject::Connection	connectImpl (const QObject *sender, int signal_index, const QObject *receiver, void **slot, QtPrivate::QSlotObjectBase *slotObj, int type, const int *types, const QMetaObject *senderMetaObject)
static QMetaObject::Connection	connect (const QObject *sender, int signal_index, QtPrivate::QSlotObjectBase *slotObj, Qt::ConnectionType type)
static QMetaObject::Connection	connect (const QObject *sender, int signal_index, const QObject *receiver, QtPrivate::QSlotObjectBase *slotObj, Qt::ConnectionType type)
static bool	disconnect (const QObject *sender, int signal_index, void **slot)
static bool	disconnect (const QObject *sender, int signal_index, const QObject *receiver, void **slot)

Public Attributes
ExtraData *	extraData
QAtomicPointer< QThreadData >	threadData
QAtomicPointer< ConnectionData >	connections
union {
QObject *   currentChildBeingDeleted
QAbstractDeclarativeData *   declarativeData
};
QAtomicPointer< QtSharedPointer::ExternalRefCountData >	sharedRefcount
Public Attributes inherited from QObjectData
QObject *	q_ptr
QObject *	parent
QObjectList	children
uint	isWidget: 1
uint	blockSig: 1
uint	wasDeleted: 1
uint	isDeletingChildren: 1
uint	sendChildEvents: 1
uint	receiveChildEvents: 1
uint	isWindow: 1
uint	deleteLaterCalled: 1
uint	isQuickItem: 1
uint	willBeWidget: 1
uint	wasWidget: 1
uint	receiveParentEvents: 1
uint	unused: 20
QAtomicInt	postedEvents
QDynamicMetaObjectData *	metaObject
QBindingStorage	bindingStorage

Detailed Description

Definition at line 73 of file qobject_p.h.

Member Typedef Documentation

ConnectionDataPointer

using QObjectPrivate::ConnectionDataPointer = QExplicitlySharedDataPointer<ConnectionData>

Definition at line 205 of file qobject_p.h.

StaticMetaCallFunction

typedef void(* QObjectPrivate::StaticMetaCallFunction) (QObject *, QMetaObject::Call, int, void **)

Definition at line 108 of file qobject_p.h.

Constructor & Destructor Documentation

QObjectPrivate()

QObjectPrivate::QObjectPrivate

(

int

version = QObjectPrivateVersion

)

Definition at line 159 of file qobject.cpp.

References QObjectData::blockSig, checkForIncompatibleLibraryVersion(), QObjectData::deleteLaterCalled, extraData, QObjectData::isDeletingChildren, QObjectData::isQuickItem, QObjectData::isWidget, QObjectData::isWindow, QObjectData::metaObject, QObjectData::parent, QObjectData::postedEvents, QObjectData::q_ptr, QObjectData::receiveChildEvents, QObjectData::receiveParentEvents, QObjectData::sendChildEvents, QObjectData::wasDeleted, QObjectData::wasWidget, and QObjectData::willBeWidget.

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~QObjectPrivate()

QObjectPrivate::~QObjectPrivate ( )

virtual

Definition at line 184 of file qobject.cpp.

References QThread::currentThread(), extraData, QList< T >::isEmpty(), QBasicAtomicPointer< X >::loadRelaxed(), QObjectData::metaObject, QDynamicMetaObjectData::objectDestroyed(), QObjectData::postedEvents, Q_LIKELY, QObjectData::q_ptr, qWarning, QAbstractEventDispatcherPrivate::releaseTimerId(), QCoreApplication::removePostedEvents(), QObjectPrivate::ExtraData::runningTimers, and threadData.

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Member Function Documentation

addConnection()

void QObjectPrivate::addConnection ( int signal, Connection * c )

inline

Add the connection c to the list of connections of the sender's object for the specified signal

The signalSlotLock() of the sender and receiver must be locked while calling this function

Will also add the connection in the sender's list of the receiver.

Definition at line 273 of file qobject.cpp.

References connections, QObjectPrivate::ConnectionData::connectionsForSignal(), QObjectPrivate::ConnectionData::currentConnectionId, ensureConnectionData(), get(), QBasicAtomicInteger< T >::loadRelaxed(), Q_ASSERT, QObjectData::q_ptr, rd, QObjectPrivate::ConnectionData::resizeSignalVector(), and signal.

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checkForIncompatibleLibraryVersion()

void QObjectPrivate::checkForIncompatibleLibraryVersion ( int version ) const

inline

Definition at line 225 of file qobject_p.h.

References Q_UNLIKELY, Q_UNUSED, qFatal, and QObjectPrivateVersion.

Referenced by QObjectPrivate().

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clearBindingStorage()

void QObjectPrivate::clearBindingStorage

(

)

Definition at line 977 of file qobject.cpp.

References QObjectData::bindingStorage.

connect() [1/3]

QMetaObject::Connection QObjectPrivate::connect ( const QObject * sender, int signal_index, const QObject * receiver, QtPrivate::QSlotObjectBase * slotObjRaw, Qt::ConnectionType type )

static

Used by QML to connect a signal by index to a slot implemented in JavaScript (wrapped in a custom QSlotObjectBase subclass).

This is an overload that should be used when sender and receiver are different objects.

The signal_index is an index relative to the number of methods.

Definition at line 5440 of file qobject.cpp.

References connectImpl(), QMetaObject::Connection(), methodIndexToSignalIndex(), and qCWarning.

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connect() [2/3]

QMetaObject::Connection QObjectPrivate::connect ( const QObject * sender, int signal_index, QtPrivate::QSlotObjectBase * slotObj, Qt::ConnectionType type )

static

Used by QML to connect a signal by index to a slot implemented in JavaScript (wrapped in a custom QSlotObjectBase subclass).

This version of connect assumes that sender and receiver are the same object.

The signal_index is an index relative to the number of methods.

Definition at line 5425 of file qobject.cpp.

References connect().

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connect() [3/3]

template<typename Func1 , typename Func2 >

QMetaObject::Connection QObjectPrivate::connect ( const typename QtPrivate::FunctionPointer< Func1 >::Object * sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object * receiverPrivate, Func2 slot, Qt::ConnectionType type = Qt::AutoConnection )

inlinestatic

Definition at line 299 of file qobject_p.h.

References Qt::BlockingQueuedConnection, QtPrivate::getQObject(), Qt::QueuedConnection, signal, and QtPrivate::ConnectionTypes< ArgList, Declared >::types().

Referenced by QFontComboBox::QFontComboBox(), QNetworkReplyHttpImpl::QNetworkReplyHttpImpl(), QQuickApplicationWindowAttached::QQuickApplicationWindowAttached(), QQuickFileDialogDelegate::QQuickFileDialogDelegate(), QQuickLabel::QQuickLabel(), QQuickOverlayAttached::QQuickOverlayAttached(), QQuickSwipeView::QQuickSwipeView(), QQuickTabBar::QQuickTabBar(), QQuickTextField::QQuickTextField(), QQuickTreeView::QQuickTreeView(), QQuickTreeViewDelegate::QQuickTreeViewDelegate(), QSortFilterProxyModel::QSortFilterProxyModel(), QTreeWidget::QTreeWidget(), QUntypedBindable::QUntypedBindable(), QWaylandClientExtension::QWaylandClientExtension(), QWidgetTextControlPrivate::_q_documentLayoutChanged(), QToolButton::actionEvent(), QQuickActionGroup::addAction(), QDialogButtonBoxPrivate::addButton(), QQuickButtonGroup::addButton(), QConcatenateTablesProxyModel::addSourceModel(), QQuickTextAreaPrivate::attachFlickable(), QQuickAttachedPropertyPropagatorPrivate::attachTo(), QQuickIconImage::componentComplete(), connect(), QFileSystemWatcherPrivate::connectEngine(), QComboBoxPrivate::connectModel(), QQuickTableViewPrivate::connectToModel(), QQuickSelectionRectanglePrivate::connectToTarget(), QQuickComboBox::contentItemChange(), QQuickPane::contentItemChange(), QQuickSpinBox::contentItemChange(), QQuickComboBoxPrivate::createDelegateModel(), QQuickComboBoxPrivate::createdItem(), QFileDialogPrivate::createMenuActions(), QFileDialogPrivate::createToolButtons(), QFileDialogPrivate::createWidgets(), QInputDialogPrivate::ensureComboBox(), QQuickDeliveryAgentPrivate::ensureDeviceConnected(), QInputDialogPrivate::ensureLineEdit(), QInputDialogPrivate::ensureListView(), QInputDialogPrivate::ensurePlainTextEdit(), QLabelPrivate::ensureTextControl(), QQuickListViewPrivate::fixup(), QFileSystemWatcherPrivate::init(), QFileSystemModelPrivate::init(), QFontDialogPrivate::init(), QDockWidgetPrivate::init(), QTabBarPrivate::init(), QTabWidgetPrivate::init(), QTextBrowserPrivate::init(), QToolButtonPrivate::init(), QQuickContainerPrivate::init(), QLineEditPrivate::init(), QTextEditPrivate::init(), QMessageBoxPrivate::init(), QPlainTextEditPrivate::init(), QFileDialogPrivate::initHelper(), QMessageBoxPrivate::initHelper(), QQuickScrollBarAttachedPrivate::initHorizontal(), QTreeViewPrivate::initialize(), QIOPipePrivate::initialize(), QWaylandOutput::initialize(), QItemSelectionModelPrivate::initModel(), QQuickScrollBarAttachedPrivate::initVertical(), QColorDialogPrivate::initWidgets(), QQuickMenuPrivate::insertItem(), QTabBar::insertTab(), QQuickDialogButtonBox::itemAdded(), QQuickMenuBar::itemAdded(), QQuickTabBar::itemAdded(), QQuickFileDialogDelegate::keyReleaseEvent(), QV4::QObjectWrapper::method_connect(), QNetworkReplyHttpImplPrivate::postRequest(), QAbstractTextDocumentLayout::registerHandler(), QQuickFolderBreadcrumbBarPrivate::repopulate(), QWidgetAction::requestWidget(), QQuickAbstractButton::setAction(), QQuickColorDialogImplAttached::setAlphaSlider(), QQuickTextControlPrivate::setBlinkingCursorEnabled(), QQuickTextInputPrivate::setBlinkingCursorEnabled(), QLabel::setBuddy(), QQuickColorDialogImplAttached::setButtonBox(), QQuickFileDialogImplAttached::setButtonBox(), QQuickFontDialogImplAttached::setButtonBox(), QQuickMessageDialogImplAttached::setButtonBox(), QWidgetTextControlPrivate::setContent(), QQuickControlPrivate::setContentItem_helper(), QWidgetTextControlPrivate::setCursorVisible(), QQuickFolderBreadcrumbBar::setDialog(), QQuickComboBox::setEditable(), QQuickFileDialogImplAttached::setFileDialogListView(), QQuickFileDialogImplAttached::setFileNameTextField(), QQuickScrollViewPrivate::setFlickable(), QQuickFolderDialogImplAttached::setFolderDialogListView(), QQuickDialog::setFooter(), QQuickDialog::setHeader(), QQuickScrollBarAttached::setHorizontal(), QQuickScrollIndicatorAttached::setHorizontal(), QDataWidgetMapper::setItemDelegate(), QAbstractSpinBox::setLineEdit(), QComboBox::setLineEdit(), QQuickItemView::setModel(), QQuickComboBox::setModel(), QAbstractItemView::setModel(), QDataWidgetMapper::setModel(), QComboBox::setModel(), QHeaderView::setModel(), QTableView::setModel(), QTreeView::setModel(), QQuickFileDialogImplAttached::setNameFiltersComboBox(), QQuickFileDialogImplAttached::setOverwriteConfirmationDialog(), QQuickWindowPrivate::setPalette(), QQuickMenuPrivate::setParentMenu(), QQuickComboBox::setPopup(), QQuickFontDialogImplAttached::setSampleEdit(), QQuickTableView::setSelectionModel(), QListWidget::setSelectionModel(), QTableView::setSortingEnabled(), QTreeView::setSortingEnabled(), QIdentityProxyModel::setSourceModel(), QSortFilterProxyModel::setSourceModel(), QQuickMenuItemPrivate::setSubMenu(), QTabWidget::setTabBar(), QTabBar::setTabsClosable(), QQuickFolderBreadcrumbBar::setTextField(), QListWidgetPrivate::setup(), QTableWidgetPrivate::setup(), QQuickFolderBreadcrumbBar::setUpButton(), QQuickScrollBarAttached::setVertical(), QQuickScrollIndicatorAttached::setVertical(), QQuickFileDialogImplPrivate::tryUpdateFileDialogListViewCurrentIndex(), QQuickSwipeViewAttachedPrivate::update(), QQuickSelectionRectanglePrivate::updateActiveState(), QComboBoxPrivate::viewContainer(), QAbstractItemView::viewportEvent(), and QQuickApplicationWindowAttachedPrivate::windowChange().

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connectImpl()

QMetaObject::Connection QObjectPrivate::connectImpl ( const QObject * sender, int signal_index, const QObject * receiver, void ** slot, QtPrivate::QSlotObjectBase * slotObjRaw, int type, const int * types, const QMetaObject * senderMetaObject )

static

Internal version of connect used by the template version of QObject::connect (called via connectImpl) and also used by the QObjectPrivate::connect version used by QML. The signal_index is expected to be relative to the number of signals.

Definition at line 5241 of file qobject.cpp.

References c2, QMetaObject::Connection(), connections, connectWarning(), get(), method, Q_ASSERT, QThreadData::ref(), ret, QObjectPrivate::Connection::sender, QMetaObjectPrivate::signal(), signalSlotLock(), Qt::SingleShotConnection, Qt::UniqueConnection, and QOrderedMutexLocker::unlock().

Referenced by QSingleShotTimer::QSingleShotTimer(), and connect().

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connectNotify()

void QObjectPrivate::connectNotify ( const QMetaMethod & signal )

inline

Definition at line 246 of file qobject_p.h.

References QObject::connectNotify(), QObjectData::q_ptr, and signal.

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deleteChildren()

void QObjectPrivate::deleteChildren

(

)

Definition at line 2202 of file qobject.cpp.

References QList< T >::at(), QObjectData::children, QList< T >::clear(), currentChildBeingDeleted, i, QObjectData::isDeletingChildren, Q_ASSERT_X, and QList< T >::size().

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disconnect() [1/3]

bool QObjectPrivate::disconnect ( const QObject * sender, int signal_index, const QObject * receiver, void ** slot )

static

Used by QML to disconnect a signal by index that's connected to a slot implemented in JavaScript (wrapped in a custom QSlotObjectBase subclass) In the QML case the slot is not a pointer to a pointer to the function to disconnect, but instead it is a pointer to an array of internal values required for the disconnect.

This is an overload that should be used when sender and receiver are different objects.

Definition at line 5482 of file qobject.cpp.

References QMetaObjectPrivate::disconnect(), and methodIndexToSignalIndex().

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disconnect() [2/3]

bool QObjectPrivate::disconnect ( const QObject * sender, int signal_index, void ** slot )

static

Used by QML to disconnect a signal by index that's connected to a slot implemented in JavaScript (wrapped in a custom QSlotObjectBase subclass) In the QML case the slot is not a pointer to a pointer to the function to disconnect, but instead it is a pointer to an array of internal values required for the disconnect.

This version of disconnect assumes that sender and receiver are the same object.

Definition at line 5465 of file qobject.cpp.

References disconnect().

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disconnect() [3/3]

template<typename Func1 , typename Func2 >

bool QObjectPrivate::disconnect ( const typename QtPrivate::FunctionPointer< Func1 >::Object * sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object * receiverPrivate, Func2 slot )

inlinestatic

Definition at line 328 of file qobject_p.h.

References signal.

Referenced by QQuickComboBox::~QQuickComboBox(), QWidgetAction::~QWidgetAction(), QDialogButtonBox::clear(), QQuickActionGroupPrivate::clear(), QQuickButtonGroupPrivate::clear(), QQuickComboBox::contentItemChange(), QQuickPane::contentItemChange(), QQuickSpinBox::contentItemChange(), QQuickTextAreaPrivate::detachFlickable(), QQuickAttachedPropertyPropagatorPrivate::detachFrom(), disconnect(), QQuickTableViewPrivate::disconnectFromModel(), QQuickScrollViewPrivate::disconnectScrollBarSignals(), QQuickFileDialogImplPrivate::fileDialogListViewCountChanged(), QQuickListViewPrivate::fixupHeaderCompleted(), QQuickDialogButtonBox::itemRemoved(), QQuickMenuBar::itemRemoved(), QQuickTabBar::itemRemoved(), QV4::QObjectWrapper::method_disconnect(), QWidgetAction::releaseWidget(), QQuickActionGroup::removeAction(), QDialogButtonBoxPrivate::removeButton(), QQuickButtonGroup::removeButton(), QQuickMenuPrivate::removeItem(), QQuickAbstractButton::setAction(), QQuickColorDialogImplAttached::setAlphaSlider(), QLabel::setBuddy(), QQuickColorDialogImplAttached::setButtonBox(), QQuickFileDialogImplAttached::setButtonBox(), QQuickFontDialogImplAttached::setButtonBox(), QQuickMessageDialogImplAttached::setButtonBox(), QQuickFolderBreadcrumbBar::setDialog(), QQuickComboBox::setEditable(), QQuickFileDialogImplAttached::setFileNameTextField(), QQuickScrollViewPrivate::setFlickable(), QQuickDialog::setFooter(), QQuickDialog::setHeader(), QQuickScrollBarAttached::setHorizontal(), QQuickScrollIndicatorAttached::setHorizontal(), QQuickComboBox::setModel(), QTreeView::setModel(), QQuickFileDialogImplAttached::setOverwriteConfirmationDialog(), QQuickComboBox::setPopup(), QQuickFontDialogImplAttached::setSampleEdit(), QQuickTableView::setSelectionModel(), QQuickMenuItemPrivate::setSubMenu(), QQuickFolderBreadcrumbBar::setTextField(), QQuickFolderBreadcrumbBar::setUpButton(), QQuickScrollBarAttached::setVertical(), QQuickScrollIndicatorAttached::setVertical(), and QAbstractTextDocumentLayout::unregisterHandler().

disconnectNotify()

void QObjectPrivate::disconnectNotify ( const QMetaMethod & signal )

inline

Definition at line 251 of file qobject_p.h.

References QObject::disconnectNotify(), QObjectData::q_ptr, and signal.

Referenced by QObject::disconnect(), and QObject::disconnect().

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ensureConnectionData()

void QObjectPrivate::ensureConnectionData ( )

inline

The signalSlotLock() of the sender must be locked while calling this function

Definition at line 254 of file qobject.cpp.

References connections, QObjectPrivate::ConnectionData::ref, and QBasicAtomicInteger< T >::ref().

Referenced by addConnection().

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ensureExtraData()

void QObjectPrivate::ensureExtraData ( )

inline

Definition at line 102 of file qobject_p.h.

flagsForDumping()

std::string QObjectPrivate::flagsForDumping ( ) const

virtual

Reimplemented in QWidgetPrivate.

Definition at line 4364 of file qobject.cpp.

Referenced by QWidgetPrivate::flagsForDumping().

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get() [1/2]

static const QObjectPrivate * QObjectPrivate::get ( const QObject * o )

inlinestatic

Definition at line 151 of file qobject_p.h.

References o.

get() [2/2]

static QObjectPrivate * QObjectPrivate::get ( QObject * o )

inlinestatic

Definition at line 150 of file qobject_p.h.

References o.

Referenced by QQmlDebugConnectorParams::QQmlDebugConnectorParams(), QQmlDelegateModelAttached::QQmlDelegateModelAttached(), QQmlDMAbstractItemModelData::QQmlDMAbstractItemModelData(), QQmlDMListAccessorData::QQmlDMListAccessorData(), QQmlDMObjectDataMetaObject::QQmlDMObjectDataMetaObject(), QQmlGadgetPtrWrapper::QQmlGadgetPtrWrapper(), QQmlInterceptorMetaObject::QQmlInterceptorMetaObject(), QQmlOpenMetaObject::QQmlOpenMetaObject(), QQmlOpenMetaObject::QQmlOpenMetaObject(), QQmlProxyMetaObject::QQmlProxyMetaObject(), QQmlVMEResolvedList::QQmlVMEResolvedList(), QSGDefaultPainterNode::QSGDefaultPainterNode(), QUntypedBindable::QUntypedBindable(), QGraphicsItem::~QGraphicsItem(), QObject::~QObject(), QQmlDMListAccessorData::~QQmlDMListAccessorData(), QQmlGadgetPtrWrapper::~QQmlGadgetPtrWrapper(), QWidgetItemV2::~QWidgetItemV2(), addConnection(), QQmlGuardImpl::addGuard(), QQuickAbstractAnimationPrivate::animationGroupDirty(), QQuickPropertyChangesParser::applyBindings(), QQmlConnectionsParser::applyBindings(), QQuickPointerHandler::approveGrabTransition(), QCocoaEventDispatcher::clearCurrentThreadCocoaEventDispatcherInterruptFlag(), QMetaObjectPrivate::connect(), QQmlNotifierEndpoint::connect(), connectImpl(), correctWidgetContext(), QQmlType::createWithQQmlData(), QQuickItemPrivate::deliveryAgentPrivate(), QQuickWindowPrivate::deliveryAgentPrivate(), QQmlNotifierEndpoint::disconnect(), QMetaObjectPrivate::disconnect(), doActivate(), QXcbWindow::doFocusIn(), QQmlPropertyData::doMetacall(), QQuickRow::doPositioning(), QQuickGrid::doPositioning(), QMacStyle::drawPrimitive(), dumpRecursive(), ensureAuthorizationDialogNotBlocked(), QEventLoop::exec(), QInputDevicePrivate::get(), QQmlData::get(), QPointingDevicePrivate::get(), QXcbScrollingDevice::get(), QInputDevicePrivate::get(), QQmlVMEMetaObject::get(), QQmlInterceptorMetaObject::get(), ModelNodeMetaObject::get(), QQmlData::get(), QPointingDevicePrivate::get(), QQmlComponentPrivate::get(), QQmlContextPrivate::get(), QQmlDelegateModelPrivate::get(), QQmlDelegateModelGroupPrivate::get(), QQmlExpressionPrivate::get(), QQuickAnchorsPrivate::get(), QQuickDragAttachedPrivate::get(), QQuickLabelPrivate::get(), QQuickTextAreaPrivate::get(), QQuickTextEditPrivate::get(), QQuickTextFieldPrivate::get(), QXcbScrollingDevice::get(), QtSharedPointer::ExternalRefCountData::getAndRef(), QQmlDesignerMetaObject::getNodeInstanceMetaObject(), ListModel::getOrCreateModelObject(), QXcbWindow::handleButtonPressEvent(), QItemSelectionModel::hasSelection(), QV4::Heap::ModelObject::init(), QCocoaSessionManager::instance(), QQmlThread::isThisThread(), QQmlContextData::isValid(), QCoreApplicationPrivate::lockThreadPostEventList(), QQmlData::markAsDeleted(), QV4::Heap::QObjectWrapper::markObjects(), matches_objectName_non_null(), QQmlVMEMetaObject::metaCall(), QObject::moveToThread(), QQuickDesignerSupportItems::objectWasDeleted(), operator<<(), PixmapEntry::pixmap(), platformInputContext(), QQmlMetaType::propertyCache(), QQmlPrivate::qdeclarativeelement_destructor(), QQmlPrivate::qmlExtendedObject(), qmltcCreateDynamicMetaObject(), QQml_setParent_noEvent(), qt_wasDeleted(), QXcbWindow::relayFocusToModalWindow(), removeConnection(), QQuickColumn::reportConflictingAnchors(), QQuickRow::reportConflictingAnchors(), QQuickGrid::reportConflictingAnchors(), QPixmapIconEngine::scaledPixmap(), QQuickItemPrivate::sceneGraphContext(), QQuickItemPrivate::sceneGraphRenderContext(), QQuickRow::setLayoutDirection(), QQuickGrid::setLayoutDirection(), QQmlDMListAccessorData::setModelData(), QQuickSelectionRectangle::setTarget(), QCocoaWindow::setVisible(), QComboBox::showPopup(), QQmlData::signalEmitted(), QQuickShaderEffectSource::updatePaintNode(), QQuick3DItem2D::updateSpatialNode(), QQmlData::wasDeleted(), QLayout::widgetEvent(), and QWindowsContext::windowsProc().

getPropertyAdaptorSlotObject()

QtPrivate::QPropertyAdaptorSlotObject * QObjectPrivate::getPropertyAdaptorSlotObject

(

const QMetaProperty &

property

)

Used by QPropertyAdaptorSlotObject to get an existing instance for a property, if available

Definition at line 5541 of file qobject.cpp.

References QtPrivate::QPropertyAdaptorSlotObject::cast(), connections, QObjectData::metaObject, methodIndexToSignalIndex(), and property.

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isDeclarativeSignalConnected()

bool QObjectPrivate::isDeclarativeSignalConnected ( uint signalIdx ) const

inline

Definition at line 240 of file qobject_p.h.

References declarativeData, QObjectData::isDeletingChildren, and QAbstractDeclarativeData::isSignalConnected.

Referenced by isSignalConnected().

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isSignalConnected()

bool QObjectPrivate::isSignalConnected	(	uint	signalIndex,
		bool	checkDeclarative = true ) const

Returns true if the signal with index signal_index from object sender is connected.

signal_index must be the index returned by QObjectPrivate::signalIndex;

Definition at line 420 of file qobject.cpp.

References QObjectPrivate::SignalVector::at(), connections, QObjectPrivate::ConnectionList::first, isDeclarativeSignalConnected(), signalIndex, QObjectPrivate::ConnectionData::signalVector, and QObjectPrivate::ConnectionData::signalVectorCount().

Referenced by QGraphicsScenePrivate::_q_emitUpdated(), QGraphicsScenePrivate::markDirty(), QGraphicsScenePrivate::processDirtyItemsRecursive(), and QVariantAnimationPrivate::setCurrentValueForProgress().

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maybeSignalConnected()

bool QObjectPrivate::maybeSignalConnected

(

uint

signalIndex

)

const

Definition at line 446 of file qobject.cpp.

References QObjectPrivate::SignalVector::at(), connections, QObjectPrivate::ConnectionList::first, signalIndex, QObjectPrivate::ConnectionData::signalVector, and QObjectPrivate::ConnectionData::signalVectorCount().

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moveToThread_helper()

void QObjectPrivate::moveToThread_helper

(

)

Definition at line 1719 of file qobject.cpp.

References QList< T >::at(), QObjectData::bindingStorage, child, QObjectData::children, i, QCoreApplication::sendEvent(), QList< T >::size(), and QEvent::ThreadChange.

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receiverList()

QObjectList QObjectPrivate::receiverList

(

const char *

signal

)

const

Definition at line 230 of file qobject.cpp.

References connections, signal, signalIndex, and QObjectPrivate::ConnectionData::signalVector.

reinitBindingStorageAfterThreadMove()

void QObjectPrivate::reinitBindingStorageAfterThreadMove

(

)

Definition at line 465 of file qobject.cpp.

References QObjectData::bindingStorage, QObjectData::children, i, and QList< T >::size().

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removeConnection()

bool QObjectPrivate::removeConnection ( QObjectPrivate::Connection * c )

inlinestatic

\threadsafe

Definition at line 5496 of file qobject.cpp.

References QObjectPrivate::ConnectionData::AlreadyLockedAndTemporarilyReleasingLock, connections, QOrderedMutexLocker::dismiss(), get(), Q_ASSERT, QMetaObjectPrivate::signal(), and signalSlotLock().

Referenced by QObject::disconnect(), doActivate(), and queued_activate().

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setParent_helper()

void QObjectPrivate::setParent_helper

(

QObject *

o

)

Definition at line 2219 of file qobject.cpp.

References QList< T >::append(), QEvent::ChildAdded, QEvent::ChildRemoved, QObject::children(), QListSpecialMethodsBase< T >::indexOf(), QObjectData::isWidget, QBasicAtomicPointer< X >::loadRelaxed(), o, QObjectData::parent, QEvent::ParentAboutToChange, QEvent::ParentChange, Q_ASSERT, Q_ASSERT_X, Q_FUNC_INFO, qPrintable, qScopeGuard(), qWarning, QObjectData::receiveParentEvents, QObjectData::sendChildEvents, QCoreApplication::sendEvent(), threadData, and QObjectData::wasDeleted.

Referenced by QWidgetPrivate::setParent_sys().

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setThreadData_helper()

void QObjectPrivate::setThreadData_helper	(	QThreadData *	currentData,
		QThreadData *	targetData,
		QBindingStatus *	status )

Definition at line 1731 of file qobject.cpp.

References QList< T >::at(), QObjectData::bindingStorage, child, QObjectData::children, connections, QObjectPrivate::ConnectionData::currentSender, QThreadData::deref(), i, QBasicAtomicPointer< X >::loadRelaxed(), QThreadData::postEventList, Q_ASSERT, QObjectPrivate::Sender::receiverDeleted(), QObjectPrivate::ConnectionData::senders, QList< T >::size(), QBasicAtomicPointer< X >::storeRelease(), and threadData.

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signalIndex()

int QObjectPrivate::signalIndex	(	const char *	signalName,
		const QMetaObject **	meta = nullptr ) const

Returns the signal index used in the internal connections->receivers vector.

It is different from QMetaObject::indexOfSignal(): indexOfSignal is the same as indexOfMethod while QObjectPrivate::signalIndex is smaller because it doesn't give index to slots.

If meta is not \nullptr, it is set to the meta-object where the signal was found.

Definition at line 4210 of file qobject.cpp.

References base, QMetaObjectPrivate::decodeMethodSignature(), QMetaObjectPrivate::get(), QMetaObjectPrivate::indexOfSignalRelative(), QMetaObjectPrivate::originalClone(), Q_ASSERT, and QMetaObjectPrivate::signalOffset().

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writeToDebugStream()

void QObjectPrivate::writeToDebugStream ( QDebug & dbg ) const

virtual

Definition at line 4472 of file qobject.cpp.

Member Data Documentation

[union]

union { ... } QObjectPrivate

connections

QAtomicPointer<ConnectionData> QObjectPrivate::connections

Definition at line 206 of file qobject_p.h.

Referenced by addConnection(), connectImpl(), QMetaObjectPrivate::disconnect(), QMetaObjectPrivate::disconnectHelper(), doActivate(), ensureConnectionData(), QObject::event(), getPropertyAdaptorSlotObject(), isSignalConnected(), maybeSignalConnected(), receiverList(), removeConnection(), QObjectPrivate::ConnectionData::removeConnection(), and setThreadData_helper().

currentChildBeingDeleted

QObject* QObjectPrivate::currentChildBeingDeleted

Definition at line 209 of file qobject_p.h.

Referenced by deleteChildren().

declarativeData

QAbstractDeclarativeData* QObjectPrivate::declarativeData

Definition at line 210 of file qobject_p.h.

Referenced by isDeclarativeSignalConnected().

extraData

ExtraData* QObjectPrivate::extraData

mutable

Definition at line 197 of file qobject_p.h.

Referenced by QObjectPrivate(), ~QObjectPrivate(), matches_objectName_non_null(), and QObject::objectName().

sharedRefcount

QAtomicPointer<QtSharedPointer::ExternalRefCountData> QObjectPrivate::sharedRefcount

Definition at line 215 of file qobject_p.h.

threadData

QAtomicPointer<QThreadData> QObjectPrivate::threadData

Definition at line 203 of file qobject_p.h.

Referenced by ~QObjectPrivate(), QAbstractSocketPrivate::_q_connectToNextAddress(), QCoreApplicationPrivate::cleanupThreadData(), QGuiApplicationPrivate::createEventDispatcher(), QObject::event(), QAbstractSocketPrivate::initSocketLayer(), QCocoaEventDispatcherPrivate::processPostedEvents(), Q_TRACE_INSTRUMENT(), setParent_helper(), and setThreadData_helper().

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The documentation for this class was generated from the following files:

• qtbase/src/corelib/kernel/qobject_p.h (d1aa7b3d199ec8243522acecc31e992e439a55ea)
• qtbase/src/corelib/kernel/qobject.cpp (99f78eb7085b19c78153bdfbff9d24a2098a2a57)