QFinalState Class Reference
The QFinalState class provides a final state. More...
#include <QFinalState>Inherits: QAbstractState.
This class was introduced in Qt 4.6.
Public Functions
| QFinalState ( QState * parent = 0 ) | |
| ~QFinalState () |
- 2 public functions inherited from QAbstractState
- 29 public functions inherited from QObject
Reimplemented Protected Functions
| virtual bool | event ( QEvent * e ) |
| virtual void | onEntry ( QEvent * event ) |
| virtual void | onExit ( QEvent * event ) |
- 3 protected functions inherited from QAbstractState
- 8 protected functions inherited from QObject
Additional Inherited Members
- 1 property inherited from QObject
- 1 public slot inherited from QObject
- 2 signals inherited from QAbstractState
- 1 signal inherited from QObject
- 7 static public members inherited from QObject
- 3 protected functions inherited from QAbstractState
- 8 protected functions inherited from QObject
Detailed Description
The QFinalState class provides a final state.
A final state is used to communicate that (part of) a QStateMachine has finished its work. When a final top-level state is entered, the state machine's finished() signal is emitted. In general, when a final substate (a child of a QState) is entered, the parent state's finished() signal is emitted. QFinalState is part of The State Machine Framework.
To use a final state, you create a QFinalState object and add a transition to it from another state. Example:
QPushButton button; QStateMachine machine; QState *s1 = new QState(); QFinalState *s2 = new QFinalState(); s1->addTransition(&button, SIGNAL(clicked()), s2); machine.addState(s1); machine.addState(s2); QObject::connect(&machine, SIGNAL(finished()), QApplication::instance(), SLOT(quit())); machine.setInitialState(s1); machine.start();
See also QState::finished().
Member Function Documentation
QFinalState::QFinalState ( QState * parent = 0 )
Constructs a new QFinalState object with the given parent state.
QFinalState::~QFinalState ()
Destroys this final state.
bool QFinalState::event ( QEvent * e ) [virtual protected]
Reimplemented from QObject::event().
void QFinalState::onEntry ( QEvent * event ) [virtual protected]
Reimplemented from QAbstractState::onEntry().
void QFinalState::onExit ( QEvent * event ) [virtual protected]
Reimplemented from QAbstractState::onExit().
No notes