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Qt 6.x
The Qt SDK
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Provides attached properties for items that are managed by one or more LayoutItemProxy. More...
#include <qquicklayoutitemproxy_p.h>
Signals | |
void | controlTaken () |
void | controlReleased () |
void | controllingProxyChanged () |
void | proxiesChanged () |
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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. | |
const QList< QQuickLayoutItemProxy * > & | getProxies () const |
QQuickLayoutItemProxyAttachedData::getProxies. | |
bool | proxyHasControl () const |
QQuickLayoutItemProxyAttachedData::proxyHasControl. | |
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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. | |
void | moveToThread (QThread *thread) |
Changes the thread affinity for this object and its children. | |
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::milliseconds time, Qt::TimerType timerType=Qt::CoarseTimer) |
void | killTimer (int id) |
Kills the timer with timer identifier, id. | |
template<typename T > | |
T | findChild (const QString &aName=QString(), 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 (const QString &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 > | |
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 |
QList< QQuickLayoutItemProxy * > | proxies |
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QString | objectName |
the name of this object | |
Additional Inherited Members | |
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void | deleteLater () |
\threadsafe | |
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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) |
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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) | |
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QScopedPointer< QObjectData > | d_ptr |
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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) | |
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.
QQuickLayoutItemProxyAttachedData::QQuickLayoutItemProxyAttachedData | ( | QObject * | parent | ) |
Definition at line 406 of file qquicklayoutitemproxy.cpp.
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override |
Definition at line 412 of file qquicklayoutitemproxy.cpp.
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signal |
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signal |
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signal |
QQuickLayoutItemProxy * QQuickLayoutItemProxyAttachedData::getControllingProxy | ( | ) | const |
QQuickLayoutItemProxyAttachedData::getControllingProxy.
null
if no proxy controls the item. Definition at line 507 of file qquicklayoutitemproxy.cpp.
References controllingProxy.
Referenced by QQuickLayoutItemProxy::~QQuickLayoutItemProxy(), QQuickLayoutItemProxy::effectiveTarget(), and QQuickLayoutItemProxy::maybeTakeControl().
const QList< QQuickLayoutItemProxy * > & QQuickLayoutItemProxyAttachedData::getProxies | ( | ) | const |
QQuickLayoutItemProxyAttachedData::getProxies.
Definition at line 516 of file qquicklayoutitemproxy.cpp.
References proxies.
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signal |
bool QQuickLayoutItemProxyAttachedData::proxyHasControl | ( | ) | const |
QQuickLayoutItemProxyAttachedData::proxyHasControl.
true
if a proxy is controlling the item, false
otherwise. Definition at line 525 of file qquicklayoutitemproxy.cpp.
References controllingProxy.
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 427 of file qquicklayoutitemproxy.cpp.
References emit, proxies, proxiesChanged(), and proxy.
Referenced by QQuickLayoutItemProxy::setTarget().
void QQuickLayoutItemProxyAttachedData::releaseControl | ( | QQuickLayoutItemProxy * | proxy | ) |
QQuickLayoutItemProxyAttachedData::releaseControl is called by LayoutItemProxies when they try no longer control the item.
proxy | The proxy that gives up control. |
Definition at line 483 of file qquicklayoutitemproxy.cpp.
References controllingProxy, controllingProxyChanged(), controlReleased(), emit, QObject::parent(), proxies, proxy, and qCDebug.
Referenced by QQuickLayoutItemProxy::~QQuickLayoutItemProxy(), QQuickLayoutItemProxy::maybeTakeControl(), and 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 440 of file qquicklayoutitemproxy.cpp.
References controllingProxy, QObject::deleteLater(), emit, proxies, proxiesChanged(), proxy, and releaseControl().
Referenced by QQuickLayoutItemProxy::~QQuickLayoutItemProxy().
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.
true
if no other proxy controls the item and if control is granted to the proxy, false
otherwise.proxy | The proxy that tries to take control. |
Definition at line 462 of file qquicklayoutitemproxy.cpp.
References controllingProxy, controllingProxyChanged(), controlTaken(), emit, QObject::parent(), proxies, proxy, and qCDebug.
Referenced by QQuickLayoutItemProxy::maybeTakeControl().
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Definition at line 118 of file qquicklayoutitemproxy_p.h.
Referenced by getControllingProxy(), proxyHasControl(), releaseControl(), releaseProxy(), and takeControl().
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read |
Definition at line 118 of file qquicklayoutitemproxy_p.h.
Referenced by ~QQuickLayoutItemProxyAttachedData(), getProxies(), registerProxy(), releaseControl(), releaseProxy(), and takeControl().
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read |
Definition at line 118 of file qquicklayoutitemproxy_p.h.
Referenced by QQuickLayoutItemProxy::setTarget().