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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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QQuickButtonGroup Class Reference

#include <qquickbuttongroup_p.h>

+ Inheritance diagram for QQuickButtonGroup:
+ Collaboration diagram for QQuickButtonGroup:

Public Slots

void addButton (QQuickAbstractButton *button)
 \qmlmethod void QtQuick.Controls::ButtonGroup::addButton(AbstractButton button)
 
void removeButton (QQuickAbstractButton *button)
 \qmlmethod void QtQuick.Controls::ButtonGroup::removeButton(AbstractButton button)
 
- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 

Signals

void checkedButtonChanged ()
 
void buttonsChanged ()
 
 Q_REVISION (2, 1) void clicked(QQuickAbstractButton *button)
 
 Q_REVISION (2, 3) void exclusiveChanged()
 
 Q_REVISION (2, 4) void checkStateChanged()
 
- 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

 QQuickButtonGroup (QObject *parent=nullptr)
 
 ~QQuickButtonGroup ()
 
QQuickAbstractButtoncheckedButton () const
 \qmlproperty AbstractButton QtQuick.Controls::ButtonGroup::checkedButton
 
void setCheckedButton (QQuickAbstractButton *checkedButton)
 
QQmlListProperty< QQuickAbstractButtonbuttons ()
 
bool isExclusive () const
 
void setExclusive (bool exclusive)
 
Qt::CheckState checkState () const
 
void setCheckState (Qt::CheckState state)
 
- 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< 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.
 
- Public Member Functions inherited from QQmlParserStatus
 QQmlParserStatus ()
 
virtual ~QQmlParserStatus ()
 

Static Public Member Functions

static QQuickButtonGroupAttachedqmlAttachedProperties (QObject *object)
 
- 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

void classBegin () override
 Invoked after class creation, but before any properties have been set.
 
void componentComplete () override
 Invoked after the root component that caused this instantiation has completed construction.
 
- 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

QQuickAbstractButtoncheckedButton
 
QQmlListProperty< QQuickAbstractButtonbuttons
 \qmlproperty list<AbstractButton> QtQuick.Controls::ButtonGroup::buttons
 
bool exclusive
 
Qt::CheckState checkState
 
- Properties inherited from QObject
QString objectName
 the name of this object
 

Additional Inherited Members

- Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
 

Detailed Description

Definition at line 30 of file qquickbuttongroup_p.h.

Constructor & Destructor Documentation

◆ QQuickButtonGroup()

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

Definition at line 260 of file qquickbuttongroup.cpp.

◆ ~QQuickButtonGroup()

QQuickButtonGroup::~QQuickButtonGroup ( )

Definition at line 265 of file qquickbuttongroup.cpp.

Member Function Documentation

◆ addButton

void QQuickButtonGroup::addButton ( QQuickAbstractButton * button)
slot

\qmlmethod void QtQuick.Controls::ButtonGroup::addButton(AbstractButton button)

Adds a button to the button group.

Note
Manually adding objects to a button group is typically unnecessary. The \l buttons property and the \l group attached property provide a convenient and declarative syntax.
See also
buttons, group

Definition at line 428 of file qquickbuttongroup.cpp.

◆ buttons()

QQmlListProperty< QQuickAbstractButton > QQuickButtonGroup::buttons ( )

◆ buttonsChanged

void QQuickButtonGroup::buttonsChanged ( )
signal

◆ checkedButton()

QQuickAbstractButton * QQuickButtonGroup::checkedButton ( ) const

\qmlproperty AbstractButton QtQuick.Controls::ButtonGroup::checkedButton

This property holds the currently selected button in an exclusive group, or null if there is none or the group is non-exclusive.

By default, it is the first checked button added to an exclusive button group.

See also
exclusive

Definition at line 286 of file qquickbuttongroup.cpp.

◆ checkedButtonChanged

void QQuickButtonGroup::checkedButtonChanged ( )
signal

◆ checkState()

Qt::CheckState QQuickButtonGroup::checkState ( ) const
Since
QtQuick.Controls 2.4 (Qt 5.11) \qmlproperty enumeration QtQuick.Controls::ButtonGroup::checkState

This property holds the combined check state of the button group.

Available states: \value Qt.Unchecked None of the buttons are checked. \value Qt.PartiallyChecked Some of the buttons are checked. \value Qt.Checked All of the buttons are checked.

Setting the check state of a non-exclusive button group to Qt.Unchecked or Qt.Checked unchecks or checks all buttons in the group, respectively. Qt.PartiallyChecked is ignored.

Setting the check state of an exclusive button group to Qt.Unchecked unchecks the \l checkedButton. Qt.Checked and Qt.PartiallyChecked are ignored.

Definition at line 393 of file qquickbuttongroup.cpp.

◆ classBegin()

void QQuickButtonGroup::classBegin ( )
overrideprotectedvirtual

Invoked after class creation, but before any properties have been set.

Implements QQmlParserStatus.

Definition at line 475 of file qquickbuttongroup.cpp.

◆ componentComplete()

void QQuickButtonGroup::componentComplete ( )
overrideprotectedvirtual

Invoked after the root component that caused this instantiation has completed construction.

At this point all static values and binding values have been assigned to the class.

Implements QQmlParserStatus.

Definition at line 481 of file qquickbuttongroup.cpp.

◆ isExclusive()

bool QQuickButtonGroup::isExclusive ( ) const
Since
QtQuick.Controls 2.3 (Qt 5.10) \qmlproperty bool QtQuick.Controls::ButtonGroup::exclusive

This property holds whether the button group is exclusive. The default value is true.

If this property is true, then only one button in the group can be checked at any given time. The user can click on any button to check it, and that button will replace the existing one as the checked button in the group.

In an exclusive group, the user cannot uncheck the currently checked button by clicking on it; instead, another button in the group must be clicked to set the new checked button for that group.

In a non-exclusive group, checking and unchecking buttons does not affect the other buttons in the group. Furthermore, the value of the \l checkedButton property is null.

Definition at line 358 of file qquickbuttongroup.cpp.

◆ Q_REVISION [1/3]

QQuickButtonGroup::Q_REVISION ( 2 ,
1  )
signal

◆ Q_REVISION [2/3]

QQuickButtonGroup::Q_REVISION ( 2 ,
3  )
signal

◆ Q_REVISION [3/3]

QQuickButtonGroup::Q_REVISION ( 2 ,
4  )
signal

◆ qmlAttachedProperties()

QQuickButtonGroupAttached * QQuickButtonGroup::qmlAttachedProperties ( QObject * object)
static

Definition at line 271 of file qquickbuttongroup.cpp.

◆ removeButton

void QQuickButtonGroup::removeButton ( QQuickAbstractButton * button)
slot

\qmlmethod void QtQuick.Controls::ButtonGroup::removeButton(AbstractButton button)

Removes a button from the button group.

Note
Manually removing objects from a button group is typically unnecessary. The \l buttons property and the \l group attached property provide a convenient and declarative syntax.
See also
buttons, group

Definition at line 457 of file qquickbuttongroup.cpp.

◆ setCheckedButton()

void QQuickButtonGroup::setCheckedButton ( QQuickAbstractButton * checkedButton)

Definition at line 292 of file qquickbuttongroup.cpp.

◆ setCheckState()

void QQuickButtonGroup::setCheckState ( Qt::CheckState state)

Definition at line 399 of file qquickbuttongroup.cpp.

◆ setExclusive()

void QQuickButtonGroup::setExclusive ( bool exclusive)

Definition at line 364 of file qquickbuttongroup.cpp.

Property Documentation

◆ buttons

QQmlListProperty< QQuickAbstractButton > QQuickButtonGroup::buttons
read

\qmlproperty list<AbstractButton> QtQuick.Controls::ButtonGroup::buttons

This property holds the list of buttons.

ButtonGroup {
buttons: column.children
}
Column {
RadioButton {
checked: true
text: qsTr("Option A")
}
RadioButton {
text: qsTr("Option B")
}
}
QQmlListProperty< QQuickAbstractButton > buttons
\qmlproperty list<AbstractButton> QtQuick.Controls::ButtonGroup::buttons
QString text
[12]
GLenum GLuint id
[7]
GLenum GLenum GLsizei void GLsizei void * column
See also
group

Definition at line 34 of file qquickbuttongroup_p.h.

◆ checkedButton

QQuickAbstractButton * QQuickButtonGroup::checkedButton
readwrite

Definition at line 33 of file qquickbuttongroup_p.h.

◆ checkState

Qt::CheckState QQuickButtonGroup::checkState
readwrite

Definition at line 38 of file qquickbuttongroup_p.h.

◆ exclusive

bool QQuickButtonGroup::exclusive
readwrite

Definition at line 36 of file qquickbuttongroup_p.h.


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