QAbstractState
QAbstractState
| Header: | #include <QAbstractState> |
| qmake: | QT += core |
| Since: | Qt 4.6 |
| Inherits: | QObject |
| Inherited By: |
QFinalState, QHistoryState, and QState |
Properties
- active : const bool
- 1 property inherited from QObject
Public Functions
| virtual | ~QAbstractState() |
| bool | active() const |
| QStateMachine * | machine() const |
| QState * | parentState() const |
- 32 public functions inherited from QObject
Signals
| void | activeChanged(bool active) |
| void | entered() |
| void | exited() |
- 2 signals inherited from QObject
Protected Functions
| QAbstractState(QState *parent = nullptr) | |
| virtual void | onEntry(QEvent *event) = 0 |
| virtual void | onExit(QEvent *event) = 0 |
Reimplemented Protected Functions
| virtual bool | event(QEvent *e) override |
- 9 protected functions inherited from QO
Additional Inherited Members
Detailed Description
The QAbstractState class is the base class of states of a QStateMachine.
The QAbstractState class is the abstract base class of states that are part of a QStateMachine. It defines the interface that all state objects have in common. QAbstractState is part of The State Machine Framework.
The entered() signal is emitted when the state has been entered. The exited() signal is emitted when the state has been exited.
The parentState() function returns the state's parent state. The machine() function returns the state machine that the state is part of.
Subclassing
The onEntry() function is called when the state is entered; reimplement this function to perform custom processing when the state is entered.
The onExit() function is called when the state is exited; reimplement this function to perform custom processing when the state is exited.
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