QtPrivate::QPropertyBindingData Class Reference

#include <qpropertyprivate.h>

Collaboration diagram for QtPrivate::QPropertyBindingData:

Public Member Functions
	QPropertyBindingData ()=default
	QPropertyBindingData (QPropertyBindingData &&other)
QPropertyBindingData &	operator= (QPropertyBindingData &&other)=delete
	~QPropertyBindingData ()
bool	hasBinding () const
bool	isNotificationDelayed () const
QUntypedPropertyBinding	setBinding (const QUntypedPropertyBinding &newBinding, QUntypedPropertyData *propertyDataPtr, QPropertyObserverCallback staticObserverCallback=nullptr, QPropertyBindingWrapper bindingWrapper=nullptr)
QPropertyBindingPrivate *	binding () const
void	evaluateIfDirty (const QUntypedPropertyData *) const
void	removeBinding ()
void	registerWithCurrentlyEvaluatingBinding (QtPrivate::BindingEvaluationState *currentBinding) const
void	registerWithCurrentlyEvaluatingBinding () const
void	notifyObservers (QUntypedPropertyData *propertyDataPtr) const
void	notifyObservers (QUntypedPropertyData *propertyDataPtr, QBindingStorage *storage) const

Static Public Attributes
static constexpr quintptr	BindingBit = 0x1
static constexpr quintptr	DelayedNotificationBit = 0x2

Friends
struct	QT_PREPEND_NAMESPACE (QPropertyBindingDataPointer)
class	QT_PREPEND_NAMESPACE (QQmlPropertyBinding)
struct	QT_PREPEND_NAMESPACE (QPropertyDelayedNotifications)
template<typename Class , typename T , auto Offset, auto Setter, auto Signal, auto Getter>
class	QT_PREPEND_NAMESPACE (QObjectCompatProperty)

Detailed Description

A property normally consists of the actual property value and metadata for the binding system. QPropertyBindingData is the latter part. It stores a pointer to either

• a (potentially empty) linked list of notifiers, in case there is no binding set,
• an actual QUntypedPropertyBinding when the property has a binding,
• or a pointer to QPropertyProxyBindingData when notifications occur inside a grouped update.

See also

QPropertyDelayedNotifications, beginPropertyUpdateGroup

Definition at line 230 of file qpropertyprivate.h.

Constructor & Destructor Documentation

QPropertyBindingData() [1/2]

QtPrivate::QPropertyBindingData::QPropertyBindingData ( )

default

QPropertyBindingData() [2/2]

QPropertyBindingData::QPropertyBindingData

(

QPropertyBindingData &&

other

)

Definition at line 533 of file qproperty.cpp.

References QPropertyBindingDataPointer::fixupAfterMove().

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~QPropertyBindingData()

QPropertyBindingData::~QPropertyBindingData

(

)

Definition at line 467 of file qproperty.cpp.

References binding(), isNotificationDelayed(), next, QPropertyProxyBindingData::originalBindingData, and QPropertyBindingPrivate::unlinkAndDeref().

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Member Function Documentation

binding()

QPropertyBindingPrivate * QtPrivate::QPropertyBindingData::binding ( ) const

inline

Definition at line 262 of file qpropertyprivate.h.

References d.

Referenced by ~QPropertyBindingData(), QObjectBindableProperty< Class, T, Offset, Signal >::hasBinding(), QObjectCompatProperty< Class, T, Offset, Setter, Signal, Getter >::hasBinding(), and setBinding().

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evaluateIfDirty()

void QPropertyBindingData::evaluateIfDirty

(

const QUntypedPropertyData *

)

const

Definition at line 572 of file qproperty.cpp.

hasBinding()

bool QtPrivate::QPropertyBindingData::hasBinding ( ) const

inline

Definition at line 254 of file qpropertyprivate.h.

isNotificationDelayed()

bool QtPrivate::QPropertyBindingData::isNotificationDelayed ( ) const

inline

Definition at line 255 of file qpropertyprivate.h.

Referenced by ~QPropertyBindingData(), QPropertyDelayedNotifications::addProperty(), and notifyObservers().

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notifyObservers() [1/2]

void QPropertyBindingData::notifyObservers

(

QUntypedPropertyData *

propertyDataPtr

)

const

Definition at line 617 of file qproperty.cpp.

References notifyObservers().

Referenced by notifyObservers().

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notifyObservers() [2/2]

void QPropertyBindingData::notifyObservers	(	QUntypedPropertyData *	propertyDataPtr,
		QBindingStorage *	storage ) const

Definition at line 622 of file qproperty.cpp.

References isNotificationDelayed(), and storage.

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operator=()

QPropertyBindingData & QtPrivate::QPropertyBindingData::operator= ( QPropertyBindingData && other )

delete

registerWithCurrentlyEvaluatingBinding() [1/2]

void QPropertyBindingData::registerWithCurrentlyEvaluatingBinding

(

)

const

Definition at line 593 of file qproperty.cpp.

References bindingStatus.

registerWithCurrentlyEvaluatingBinding() [2/2]

void QtPrivate::QPropertyBindingData::registerWithCurrentlyEvaluatingBinding ( QtPrivate::BindingEvaluationState * currentBinding ) const

inline

Definition at line 279 of file qpropertyprivate.h.

Referenced by QtPrivate::PropertyAdaptorSlotObjectHelpers::getter().

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removeBinding()

void QtPrivate::QPropertyBindingData::removeBinding ( )

inline

Definition at line 273 of file qpropertyprivate.h.

Referenced by QtPrivate::PropertyAdaptorSlotObjectHelpers::setter(), QObjectBindableProperty< Class, T, Offset, Signal >::setValue(), and QObjectBindableProperty< Class, T, Offset, Signal >::setValue().

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setBinding()

QUntypedPropertyBinding QPropertyBindingData::setBinding	(	const QUntypedPropertyBinding &	newBinding,
		QUntypedPropertyData *	propertyDataPtr,
		QPropertyObserverCallback	staticObserverCallback = nullptr,
		QtPrivate::QPropertyBindingWrapper	guardCallback = nullptr )

Definition at line 481 of file qproperty.cpp.

References QtPrivate::RefCounted::addRef(), binding(), BindingBit, QPropertyBindingError::BindingLoop, QPropertyBindingPrivatePtr::data(), QPropertyObserverPointer::ptr, QStringLiteral, and QPropertyBindingPrivate::setProperty().

Referenced by QtPrivate::PropertyAdaptorSlotObjectHelpers::setBinding().

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Friends And Related Symbol Documentation

QT_PREPEND_NAMESPACE [1/4]

template<typename Class , typename T , auto Offset, auto Setter, auto Signal, auto Getter>

class QT_PREPEND_NAMESPACE ( QObjectCompatProperty )

friend

QT_PREPEND_NAMESPACE [2/4]

struct QT_PREPEND_NAMESPACE ( QPropertyBindingDataPointer )

friend

QT_PREPEND_NAMESPACE [3/4]

struct QT_PREPEND_NAMESPACE ( QPropertyDelayedNotifications )

friend

QT_PREPEND_NAMESPACE [4/4]

class QT_PREPEND_NAMESPACE ( QQmlPropertyBinding )

friend

Member Data Documentation

BindingBit

constexpr quintptr QtPrivate::QPropertyBindingData::BindingBit = 0x1

inlinestaticconstexpr

Definition at line 250 of file qpropertyprivate.h.

Referenced by QPropertyBindingDataPointer::addObserver(), QPropertyDelayedNotifications::addProperty(), QPropertyBindingDataPointer::fixupAfterMove(), QPropertyDelayedNotifications::notify(), and setBinding().

DelayedNotificationBit

constexpr quintptr QtPrivate::QPropertyBindingData::DelayedNotificationBit = 0x2

inlinestaticconstexpr

Definition at line 252 of file qpropertyprivate.h.

Referenced by QPropertyDelayedNotifications::addProperty(), and QPropertyDelayedNotifications::evaluateBindings().

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

• qtbase/src/corelib/kernel/qpropertyprivate.h (5a0faa9198c6ae6e21a550159c4284d1a9c5792e)
• qtbase/src/corelib/kernel/qproperty.cpp (476e503cfbc42b8ea9e94a1f536d443fc8ce69c0)