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Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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QQuickAction Class Reference

#include <qquickaction_p.h>

+ Inheritance diagram for QQuickAction:
+ Collaboration diagram for QQuickAction:

Public Slots

void toggle (QObject *source=nullptr)
 \qmlmethod void QtQuick.Controls::Action::toggle(QtObject source)
 
void trigger (QObject *source=nullptr)
 \qmlmethod void QtQuick.Controls::Action::trigger(QtObject source)
 
- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 

Signals

void textChanged (const QString &text)
 
void iconChanged (const QQuickIcon &icon)
 
void enabledChanged (bool enabled)
 
void checkedChanged (bool checked)
 
void checkableChanged (bool checkable)
 
void toggled (QObject *source=nullptr)
 
void triggered (QObject *source=nullptr)
 
- 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

 QQuickAction (QObject *parent=nullptr)
 
 ~QQuickAction ()
 
QString text () const
 \qmlproperty string QtQuick.Controls::Action::text
 
void setText (const QString &text)
 
QQuickIcon icon () const
 \qmlproperty string QtQuick.Controls::Action::icon.name \qmlproperty url QtQuick.Controls::Action::icon.source \qmlproperty int QtQuick.Controls::Action::icon.width \qmlproperty int QtQuick.Controls::Action::icon.height \qmlproperty color QtQuick.Controls::Action::icon.color \qmlproperty bool QtQuick.Controls::Action::icon.cache
 
void setIcon (const QQuickIcon &icon)
 
bool isEnabled () const
 \qmlproperty bool QtQuick.Controls::Action::enabled
 
void setEnabled (bool enabled)
 
void resetEnabled ()
 
bool isChecked () const
 \qmlproperty bool QtQuick.Controls::Action::checked
 
void setChecked (bool checked)
 
bool isCheckable () const
 \qmlproperty bool QtQuick.Controls::Action::checkable
 
void setCheckable (bool checkable)
 
- 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.
 
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< QStringbindableObjectName ()
 
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).
 
QThreadthread () 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 >
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 >
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 QObjectListchildren () 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< QByteArraydynamicPropertyNames () const
 
QBindingStoragebindingStorage ()
 
const QBindingStoragebindingStorage () const
 
QObjectparent () 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.
 

Protected Member Functions

bool event (QEvent *event) override
 This virtual function receives events to an object and should return true if the event e was recognized and processed.
 
bool eventFilter (QObject *object, QEvent *event) override
 Filters events if this object has been installed as an event filter for the watched object.
 
- Protected Member Functions inherited from QObject
QObjectsender () 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)
 

Properties

QString text
 
QQuickIcon icon
 
bool enabled
 
bool checked
 
bool checkable
 
- Properties inherited from QObject
QString objectName
 the name of this object
 

Additional Inherited Members

- 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 Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
 

Detailed Description

Definition at line 28 of file qquickaction_p.h.

Constructor & Destructor Documentation

◆ QQuickAction()

QQuickAction::QQuickAction ( QObject * parent = nullptr)
explicit

Definition at line 309 of file qquickaction.cpp.

◆ ~QQuickAction()

QQuickAction::~QQuickAction ( )

Definition at line 318 of file qquickaction.cpp.

Member Function Documentation

◆ checkableChanged

void QQuickAction::checkableChanged ( bool checkable)
signal

◆ checkedChanged

void QQuickAction::checkedChanged ( bool checked)
signal

◆ enabledChanged

void QQuickAction::enabledChanged ( bool enabled)
signal

◆ event()

bool QQuickAction::event ( QEvent * e)
overrideprotectedvirtual

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

The event() function can be reimplemented to customize the behavior of an object.

Make sure you call the parent event class implementation for all the events you did not handle.

Example:

class MyClass : public QWidget
{
public:
MyClass(QWidget *parent = nullptr);
bool event(QEvent* ev) override
{
if (ev->type() == QEvent::PolishRequest) {
// overwrite handling of PolishRequest if any
doThings();
return true;
} else if (ev->type() == QEvent::Show) {
// complement handling of Show if any
doThings2();
return true;
}
// Make sure the rest of events are handled
return QWidget::event(ev);
}
};
See also
installEventFilter(), timerEvent(), QCoreApplication::sendEvent(), QCoreApplication::postEvent()

Reimplemented from QObject.

Definition at line 534 of file qquickaction.cpp.

◆ eventFilter()

bool QQuickAction::eventFilter ( QObject * watched,
QEvent * event )
overrideprotectedvirtual

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:

class MainWindow : public QMainWindow
{
public:
protected:
bool eventFilter(QObject *obj, QEvent *ev) override;
private:
QTextEdit *textEdit;
};
{
textEdit = new QTextEdit;
setCentralWidget(textEdit);
textEdit->installEventFilter(this);
}
{
if (obj == textEdit) {
if (event->type() == QEvent::KeyPress) {
QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
qDebug() << "Ate key press" << keyEvent->key();
return true;
} else {
return false;
}
} else {
// pass the event on to the parent class
}
}

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 544 of file qquickaction.cpp.

◆ icon()

QQuickIcon QQuickAction::icon ( ) const

\qmlproperty string QtQuick.Controls::Action::icon.name \qmlproperty url QtQuick.Controls::Action::icon.source \qmlproperty int QtQuick.Controls::Action::icon.width \qmlproperty int QtQuick.Controls::Action::icon.height \qmlproperty color QtQuick.Controls::Action::icon.color \qmlproperty bool QtQuick.Controls::Action::icon.cache

grouped-properties

Definition at line 365 of file qquickaction.cpp.

◆ iconChanged

void QQuickAction::iconChanged ( const QQuickIcon & icon)
signal

◆ isCheckable()

bool QQuickAction::isCheckable ( ) const

\qmlproperty bool QtQuick.Controls::Action::checkable

This property holds whether the action is checkable. The default value is false.

A checkable action toggles between checked (on) and unchecked (off) when triggered.

See also
checked

Definition at line 442 of file qquickaction.cpp.

◆ isChecked()

bool QQuickAction::isChecked ( ) const

\qmlproperty bool QtQuick.Controls::Action::checked

This property holds whether the action is checked.

See also
checkable

Definition at line 417 of file qquickaction.cpp.

◆ isEnabled()

bool QQuickAction::isEnabled ( ) const

\qmlproperty bool QtQuick.Controls::Action::enabled

This property holds whether the action is enabled. The default value is true.

Definition at line 387 of file qquickaction.cpp.

◆ resetEnabled()

void QQuickAction::resetEnabled ( )

Definition at line 400 of file qquickaction.cpp.

◆ setCheckable()

void QQuickAction::setCheckable ( bool checkable)

Definition at line 448 of file qquickaction.cpp.

◆ setChecked()

void QQuickAction::setChecked ( bool checked)

Definition at line 423 of file qquickaction.cpp.

◆ setEnabled()

void QQuickAction::setEnabled ( bool enabled)

Definition at line 393 of file qquickaction.cpp.

◆ setIcon()

void QQuickAction::setIcon ( const QQuickIcon & icon)

Definition at line 371 of file qquickaction.cpp.

◆ setText()

void QQuickAction::setText ( const QString & text)

Definition at line 345 of file qquickaction.cpp.

◆ text()

QString QQuickAction::text ( ) const

\qmlproperty string QtQuick.Controls::Action::text

This property holds a textual description of the action.

Definition at line 339 of file qquickaction.cpp.

◆ textChanged

void QQuickAction::textChanged ( const QString & text)
signal

◆ toggle

void QQuickAction::toggle ( QObject * source = nullptr)
slot

\qmlmethod void QtQuick.Controls::Action::toggle(QtObject source)

Toggles the action and emits \l toggled() if enabled, with an optional source object defined.

Definition at line 492 of file qquickaction.cpp.

◆ toggled

void QQuickAction::toggled ( QObject * source = nullptr)
signal

◆ trigger

void QQuickAction::trigger ( QObject * source = nullptr)
slot

\qmlmethod void QtQuick.Controls::Action::trigger(QtObject source)

Triggers the action and emits \l triggered() if enabled, with an optional source object defined.

Definition at line 509 of file qquickaction.cpp.

◆ triggered

void QQuickAction::triggered ( QObject * source = nullptr)
signal

Property Documentation

◆ checkable

bool QQuickAction::checkable
readwrite

Definition at line 35 of file qquickaction_p.h.

◆ checked

bool QQuickAction::checked
readwrite

Definition at line 34 of file qquickaction_p.h.

◆ enabled

bool QQuickAction::enabled
readwrite

Definition at line 33 of file qquickaction_p.h.

◆ icon

QQuickIcon QQuickAction::icon
readwrite

Definition at line 32 of file qquickaction_p.h.

◆ text

QString QQuickAction::text
readwrite

Definition at line 31 of file qquickaction_p.h.


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