CopperSpice API  1.7.2
QActionEvent Class Reference

The QActionEvent class provides an event that is generated when a QAction is added, removed, or changed. More...

Inheritance diagram for QActionEvent:
QEvent

Public Methods

 QActionEvent (int type, QAction *action, QAction *before=nullptr)
 
QActionaction () const
 
QActionbefore () const
 
- Public Methods inherited from QEvent
 QEvent (const QEvent &other)
 
 QEvent (Type type)
 
virtual ~QEvent ()
 
void accept ()
 
void ignore ()
 
bool isAccepted () const
 
QEvent & operator= (const QEvent &other)
 
void setAccepted (bool accepted)
 
bool spontaneous () const
 
Type type () const
 

Additional Inherited Members

- Public Types inherited from QEvent
enum  Type
 
- Static Public Methods inherited from QEvent
static int registerEventType (int hint=-1)
 

Detailed Description

The QActionEvent class provides an event that is generated when a QAction is added, removed, or changed.

Actions can be added to widgets using QWidget::addAction(). This generates an ActionAdded event, which you can handle to provide custom behavior. For example, QToolBar reimplements QWidget::actionEvent() to create QToolButtons for the actions.

See also
QAction, QWidget::addAction(), QWidget::removeAction(), QWidget::actions()

Constructor & Destructor Documentation

QActionEvent::QActionEvent ( int  type,
QAction action,
QAction before = nullptr 
)

Constructs an action event. The type can be ActionChanged, ActionAdded, or ActionRemoved.

action is the action that is changed, added, or removed. If type is ActionAdded, the action is to be inserted before the action before. If before is 0, the action is appended.

Method Documentation

QAction * QActionEvent::action ( ) const
inline

Returns the action that is changed, added, or removed.

See also
before()
QAction * QActionEvent::before ( ) const
inline

If type() is ActionAdded, returns the action that should appear before action(). If this function returns a nullptr, the action should be appended to already existing actions on the same widget.

See also
action(), QWidget::actions()