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bool | eventFilter (QObject *watched, QEvent *event) override |
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uint | showEventsCount () const |
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uint | hideEventsCount () const |
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Q_INVOKABLE | QObject (QObject *parent=nullptr) |
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| QObject (QObjectPrivate &dd, QObject *parent=nullptr) |
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Q_INVOKABLE | QObject (QObject *parent=nullptr) |
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virtual | ~QObject () |
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virtual bool | event (QEvent *event) |
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QString | objectName () const |
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void | setObjectName (const QString &name) |
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QBindable< QString > | bindableObjectName () |
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bool | isWidgetType () const |
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bool | isWindowType () const |
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bool | signalsBlocked () const noexcept |
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bool | blockSignals (bool b) noexcept |
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QThread * | thread () const |
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void | moveToThread (QThread *thread) |
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int | startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer) |
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void | killTimer (int id) |
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template<typename T > |
T | findChild (const QString &aName=QString(), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
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template<typename T > |
QList< T > | findChildren (const QString &aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
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template<typename T > |
QList< T > | findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
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const QObjectList & | children () const |
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void | setParent (QObject *parent) |
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void | installEventFilter (QObject *filterObj) |
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void | removeEventFilter (QObject *obj) |
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QMetaObject::Connection | connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const |
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bool | disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const |
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bool | disconnect (const QObject *receiver, const char *member=nullptr) const |
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void | dumpObjectTree () const |
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void | dumpObjectInfo () const |
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bool | setProperty (const char *name, const QVariant &value) |
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QVariant | property (const char *name) const |
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QList< QByteArray > | dynamicPropertyNames () const |
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QBindingStorage * | bindingStorage () |
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const QBindingStorage * | bindingStorage () const |
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QObject * | parent () const |
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bool | inherits (const char *classname) const |
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void | deleteLater () |
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void | destroyed (QObject *=nullptr) |
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void | objectNameChanged (const QString &objectName, QPrivateSignal) |
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static QMetaObject::Connection | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection) |
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static QMetaObject::Connection | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection) |
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template<typename Func1 , typename Func2 > |
static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection) |
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static QMetaObject::Connection ::type | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 slot) |
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static QMetaObject::Connection ::type | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *context, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection) |
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template<typename Func1 , typename Func2 > |
static std::enable_if< QtPrivate::FunctionPointer< Func2 >::ArgumentCount==-1 &&!std::is_convertible_v< Func2, const char * >, QMetaObject::Connection >::type | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 slot) |
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template<typename Func1 , typename Func2 > |
static std::enable_if< QtPrivate::FunctionPointer< Func2 >::ArgumentCount==-1 &&!std::is_convertible_v< Func2, const char * >, QMetaObject::Connection >::type | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *context, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection) |
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static bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member) |
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static bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member) |
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static bool | disconnect (const QMetaObject::Connection &) |
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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) |
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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 |
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int | senderSignalIndex () const |
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int | receivers (const char *signal) const |
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bool | isSignalConnected (const QMetaMethod &signal) const |
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virtual void | timerEvent (QTimerEvent *event) |
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virtual void | childEvent (QChildEvent *event) |
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virtual void | customEvent (QEvent *event) |
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virtual void | connectNotify (const QMetaMethod &signal) |
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virtual void | disconnectNotify (const QMetaMethod &signal) |
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| QObject (QObjectPrivate &dd, QObject *parent=nullptr) |
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QScopedPointer< QObjectData > | d_ptr |
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QString | objectName |
| the name of this object More...
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template< class T > T | qobject_cast (const QObject *object) |
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template< typename T > T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
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template< typename T > QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
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| QObjectList |
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Definition at line 1112 of file tst_qtoolbar.cpp.
bool ShowHideEventCounter::eventFilter |
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QObject * |
watched, |
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QEvent * |
event |
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) |
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inlineoverridevirtual |
Filters events if this object has been installed as an event filter for the watched object.
In your reimplementation of this function, if you want to filter the event out, i.e. stop it being handled further, return true; otherwise return false.
Example:
Notice in the example above that unhandled events are passed to the base class's eventFilter() function, since the base class might have reimplemented eventFilter() for its own internal purposes.
Some events, such as \l QEvent::ShortcutOverride must be explicitly accepted (by calling \l {QEvent::}{accept()} on them) in order to prevent propagation.
- Warning
- If you delete the receiver object in this function, be sure to return true. Otherwise, Qt will forward the event to the deleted object and the program might crash.
- See also
- installEventFilter()
Reimplemented from QObject.
Definition at line 1117 of file tst_qtoolbar.cpp.
Constructs an object with parent object parent.
The parent of an object may be viewed as the object's owner. For instance, a \l{QDialog}{dialog box} is the parent of the \uicontrol{OK} and \uicontrol{Cancel} buttons it contains.
The destructor of a parent object destroys all child objects.
Setting parent to \nullptr constructs an object with no parent. If the object is a widget, it will become a top-level window.
- See also
- parent(), findChild(), findChildren()
Definition at line 133 of file qobject.cpp.