\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, QtPrivate::IsUntypedPropertyData< Property > = true>
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, QtPrivate::IsUntypedPropertyData< Property > = true>
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 292 of file qproperty.h.

Constructor & Destructor Documentation

template<typename Functor>

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

inline

Definition at line 297 of file qproperty.h.

template<typename Functor>

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

inline

Definition at line 308 of file qproperty.h.

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