Provides attached properties for items that are managed by one or more LayoutItemProxy. More...

#include <qquicklayoutitemproxy_p.h>

Inheritance diagram for QQuickLayoutItemProxyAttachedData:

Collaboration diagram for QQuickLayoutItemProxyAttachedData:

Signals
void	controlTaken ()

void	controlReleased ()

void	controllingProxyChanged ()

void	proxiesChanged ()

Signals inherited from QObject
void	destroyed (QObject *=nullptr)
	This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.

void	objectNameChanged (const QString &objectName, QPrivateSignal)
	This signal is emitted after the object's name has been changed.

Public Member Functions
	QQuickLayoutItemProxyAttachedData (QObject *parent)

	~QQuickLayoutItemProxyAttachedData () override

void	registerProxy (QQuickLayoutItemProxy *proxy)
	QQuickLayoutItemProxyAttachedData::registerProxy registers a proxy that manages the item this data is attached to.

void	releaseProxy (QQuickLayoutItemProxy *proxy)
	QQuickLayoutItemProxyAttachedData::releaseProxy removes a proxy from a list of known proxies that manage the item this data is attached to.

bool	takeControl (QQuickLayoutItemProxy *proxy)
	QQuickLayoutItemProxyAttachedData::takeControl is called by LayoutItemProxies when they try to take control over the item this data is attached to.

void	releaseControl (QQuickLayoutItemProxy *proxy)
	QQuickLayoutItemProxyAttachedData::releaseControl is called by LayoutItemProxies when they try no longer control the item.

QQuickLayoutItemProxy *	getControllingProxy () const
	QQuickLayoutItemProxyAttachedData::getControllingProxy.

QQmlListProperty< QQuickLayoutItemProxy >	getProxies ()
	QQuickLayoutItemProxyAttachedData::getProxies.

bool	proxyHasControl () const
	QQuickLayoutItemProxyAttachedData::proxyHasControl.

Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)
	Constructs an object with parent object parent.

virtual	~QObject ()
	Destroys the object, deleting all its child objects.

virtual bool	event (QEvent *event)
	This virtual function receives events to an object and should return true if the event e was recognized and processed.

virtual bool	eventFilter (QObject watched, QEvent event)
	Filters events if this object has been installed as an event filter for the watched object.

QString	objectName () const

Q_WEAK_OVERLOAD void	setObjectName (const QString &name)
	Sets the object's name to name.

void	setObjectName (QAnyStringView name)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QBindable< QString >	bindableObjectName ()

bool	isWidgetType () const
	Returns `true` if the object is a widget; otherwise returns `false`.

bool	isWindowType () const
	Returns `true` if the object is a window; otherwise returns `false`.

bool	isQuickItemType () const
	Returns `true` if the object is a QQuickItem; otherwise returns `false`.

bool	signalsBlocked () const noexcept
	Returns `true` if signals are blocked; otherwise returns `false`.

bool	blockSignals (bool b) noexcept
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).

QThread *	thread () const
	Returns the thread in which the object lives.

bool	moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
	Changes the thread affinity for this object and its children and returns `true` on success.

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
	This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.

int	startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)

void	killTimer (int id)
	Kills the timer with timer identifier, id.

void	killTimer (Qt::TimerId id)

template<typename T >
T	findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.

template<typename T >
QList< T >	findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.

template<typename T >
T	findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

const QObjectList &	children () const
	Returns a list of child objects.

void	setParent (QObject *parent)
	Makes the object a child of parent.

void	installEventFilter (QObject *filterObj)
	Installs an event filter filterObj on this object.

void	removeEventFilter (QObject *obj)
	Removes an event filter object obj from this object.

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=nullptr, const QObject receiver=nullptr, const char *member=nullptr) const

bool	disconnect (const QObject receiver, const char member=nullptr) const

void	dumpObjectTree () const
	Dumps a tree of children to the debug output.

void	dumpObjectInfo () const
	Dumps information about signal connections, etc.

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value.

bool	setProperty (const char *name, QVariant &&value)

QVariant	property (const char *name) const
	Returns the value of the object's name property.

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () const
	Returns a pointer to the parent object.

bool	inherits (const char *classname) const
	Returns `true` if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns `false`.

Properties
QML_ANONYMOUSbool	proxyHasControl

QQuickLayoutItemProxy *	controllingProxy

QQmlListProperty< QQuickLayoutItemProxy >	proxies

Properties inherited from QObject
QString	objectName
	the name of this object

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

Static Public Member Functions inherited from QObject
static QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	\threadsafe

static QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	\threadsafe

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static bool	disconnect (const QMetaObject::Connection &)
	Disconnect a connection.

template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot)

template<typename Func1 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject receiver, void **zero)

Protected Member Functions inherited from QObject
QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.

int	senderSignalIndex () const

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal.

bool	isSignalConnected (const QMetaMethod &signal) const

virtual void	timerEvent (QTimerEvent *event)
	This event handler can be reimplemented in a subclass to receive timer events for the object.

virtual void	childEvent (QChildEvent *event)
	This event handler can be reimplemented in a subclass to receive child events.

virtual void	customEvent (QEvent *event)
	This event handler can be reimplemented in a subclass to receive custom events.

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

	QObject (QObjectPrivate &dd, QObject *parent=nullptr)

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

Provides attached properties for items that are managed by one or more LayoutItemProxy.

It stores all proxies that target the item, and will emit signals when the proxies or the controlling proxy changes. Proxies can listen to the signal and pick up control if they wish to.

Definition at line 114 of file qquicklayoutitemproxy_p.h.

Constructor & Destructor Documentation

◆ QQuickLayoutItemProxyAttachedData()

QQuickLayoutItemProxyAttachedData::QQuickLayoutItemProxyAttachedData ( QObject * parent )

Definition at line 403 of file qquicklayoutitemproxy.cpp.

◆ ~QQuickLayoutItemProxyAttachedData()

QQuickLayoutItemProxyAttachedData::~QQuickLayoutItemProxyAttachedData ( )

override

Definition at line 409 of file qquicklayoutitemproxy.cpp.

References proxies, and proxy.

Member Function Documentation

◆ controllingProxyChanged

void QQuickLayoutItemProxyAttachedData::controllingProxyChanged ( )

signal

Referenced by releaseControl(), and takeControl().

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◆ controlReleased

void QQuickLayoutItemProxyAttachedData::controlReleased ( )

signal

Referenced by releaseControl().

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◆ controlTaken

void QQuickLayoutItemProxyAttachedData::controlTaken ( )

signal

Referenced by takeControl().

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◆ getControllingProxy()

QQuickLayoutItemProxy * QQuickLayoutItemProxyAttachedData::getControllingProxy ( ) const

QQuickLayoutItemProxyAttachedData::getControllingProxy.

Returns: the proxy that currently controls the item this data is attached to. Returns null if no proxy controls the item.

Definition at line 504 of file qquicklayoutitemproxy.cpp.

References controllingProxy.

◆ getProxies()

QQmlListProperty< QQuickLayoutItemProxy > QQuickLayoutItemProxyAttachedData::getProxies ( )

QQuickLayoutItemProxyAttachedData::getProxies.

Returns: a list of all proxies that target the item this data is attached to.

Definition at line 513 of file qquicklayoutitemproxy.cpp.

References at, i, and proxies.

◆ proxiesChanged

void QQuickLayoutItemProxyAttachedData::proxiesChanged ( )

signal

Referenced by registerProxy(), and releaseProxy().

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◆ proxyHasControl()

bool QQuickLayoutItemProxyAttachedData::proxyHasControl ( ) const

QQuickLayoutItemProxyAttachedData::proxyHasControl.

Returns: true if a proxy is controlling the item, false otherwise.

Definition at line 529 of file qquicklayoutitemproxy.cpp.

References controllingProxy.

◆ registerProxy()

void QQuickLayoutItemProxyAttachedData::registerProxy ( QQuickLayoutItemProxy * proxy )

QQuickLayoutItemProxyAttachedData::registerProxy registers a proxy that manages the item this data is attached to.

This is required to easily notify proxies when the target is destroyed or when it is free to take over control.

Definition at line 424 of file qquicklayoutitemproxy.cpp.

References emit, proxies, proxiesChanged(), and proxy.

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◆ releaseControl()

void QQuickLayoutItemProxyAttachedData::releaseControl ( QQuickLayoutItemProxy * proxy )

QQuickLayoutItemProxyAttachedData::releaseControl is called by LayoutItemProxies when they try no longer control the item.

Parameters

proxy The proxy that gives up control.

Definition at line 480 of file qquicklayoutitemproxy.cpp.

References controllingProxy, controllingProxyChanged(), controlReleased(), emit, QObject::parent(), proxies, proxy, and qCDebug.

Referenced by QQuickLayoutItemProxy::~QQuickLayoutItemProxy(), and releaseProxy().

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◆ releaseProxy()

void QQuickLayoutItemProxyAttachedData::releaseProxy ( QQuickLayoutItemProxy * proxy )

QQuickLayoutItemProxyAttachedData::releaseProxy removes a proxy from a list of known proxies that manage the item this data is attached to.

Definition at line 437 of file qquicklayoutitemproxy.cpp.

References controllingProxy, QObject::deleteLater(), emit, proxies, proxiesChanged(), proxy, and releaseControl().

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◆ takeControl()

bool QQuickLayoutItemProxyAttachedData::takeControl ( QQuickLayoutItemProxy * proxy )

QQuickLayoutItemProxyAttachedData::takeControl is called by LayoutItemProxies when they try to take control over the item this data is attached to.

Returns: true if no other proxy controls the item and if control is granted to the proxy, false otherwise.

Parameters

proxy The proxy that tries to take control.

Definition at line 459 of file qquicklayoutitemproxy.cpp.

References controllingProxy, controllingProxyChanged(), controlTaken(), emit, QObject::parent(), proxies, proxy, and qCDebug.

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Property Documentation

◆ controllingProxy

QQuickLayoutItemProxy * QQuickLayoutItemProxyAttachedData::controllingProxy

read

Definition at line 120 of file qquicklayoutitemproxy_p.h.

Referenced by getControllingProxy(), proxyHasControl(), releaseControl(), releaseProxy(), and takeControl().

◆ proxies

QQmlListProperty<QQuickLayoutItemProxy> QQuickLayoutItemProxyAttachedData::proxies

read

Definition at line 121 of file qquicklayoutitemproxy_p.h.

Referenced by ~QQuickLayoutItemProxyAttachedData(), getProxies(), registerProxy(), releaseControl(), releaseProxy(), and takeControl().

◆ proxyHasControl

QML_ANONYMOUSbool QQuickLayoutItemProxyAttachedData::proxyHasControl

read

Definition at line 119 of file qquicklayoutitemproxy_p.h.

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

qtdeclarative/src/quicklayouts/qquicklayoutitemproxy_p.h (8628dbfd36586b9d1318470905410f4000dc0586)
qtdeclarative/src/quicklayouts/qquicklayoutitemproxy.cpp (8628dbfd36586b9d1318470905410f4000dc0586)

Signals

Public Member Functions

Properties

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QQuickLayoutItemProxyAttachedData()

◆ ~QQuickLayoutItemProxyAttachedData()

Member Function Documentation

◆ controllingProxyChanged

◆ controlReleased

◆ controlTaken

◆ getControllingProxy()

◆ getProxies()

◆ proxiesChanged

◆ proxyHasControl()

◆ registerProxy()

◆ releaseControl()

◆ releaseProxy()

◆ takeControl()

Property Documentation

◆ controllingProxy

◆ proxies

◆ proxyHasControl