\inmodule QtCore More...

#include <qproperty.h>

Inheritance diagram for QPropertyChangeHandler< Functor >:

Collaboration diagram for QPropertyChangeHandler< Functor >:

Public Member Functions
Q_NODISCARD_CTOR	QPropertyChangeHandler (Functor handler)

template<typename Property , typename = typename Property::InheritsQUntypedPropertyData>
Q_NODISCARD_CTOR	QPropertyChangeHandler (const Property &property, Functor handler)

Public Member Functions inherited from QPropertyObserver
constexpr	QPropertyObserver ()=default

	QPropertyObserver (QPropertyObserver &&other) noexcept

QPropertyObserver &	operator= (QPropertyObserver &&other) noexcept

	~QPropertyObserver ()

template<typename Property , typename = typename Property::InheritsQUntypedPropertyData>
void	setSource (const Property &property)

void	setSource (const QtPrivate::QPropertyBindingData &property)

Additional Inherited Members
Public Types inherited from QPropertyObserverBase
enum	ObserverTag { ObserverNotifiesBinding , ObserverNotifiesChangeHandler , ObserverIsPlaceholder }

Protected Types inherited from QPropertyObserverBase
using	ChangeHandler = void()(QPropertyObserver , QUntypedPropertyData *)

Protected Member Functions inherited from QPropertyObserver
	QPropertyObserver (ChangeHandler changeHandler)

QUntypedPropertyData *	aliasedProperty () const

Detailed Description

template<typename Functor>
class QPropertyChangeHandler< Functor >

\inmodule QtCore

The QPropertyChangeHandler class controls the lifecycle of change callback installed on a QProperty.

QPropertyChangeHandler<Functor> is created when registering a callback on a QProperty to listen to changes to the property's value, using QProperty::onValueChanged and QProperty::subscribe. As long as the change handler is alive, the callback remains installed.

A handler instance can be transferred between C++ scopes using move semantics.

Definition at line 290 of file qproperty.h.

Constructor & Destructor Documentation

template<typename Functor >

Q_NODISCARD_CTOR QPropertyChangeHandler< Functor >::QPropertyChangeHandler ( Functor handler )

inline

Definition at line 295 of file qproperty.h.

template<typename Functor >

template<typename Property , typename = typename Property::InheritsQUntypedPropertyData>

Q_NODISCARD_CTOR QPropertyChangeHandler< Functor >::QPropertyChangeHandler	(	const Property &	property,
		Functor	handler
	)

inline

Definition at line 306 of file qproperty.h.

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