QAbstractState Class

The QAbstractState class is the base class of states of a QStateMachine. More...

Header:	#include <QAbstractState>
qmake:	QT += core
Since:	Qt 4.6
Inherits:	QObject
Inherited By:	QFinalState, QHistoryState, and QState

This class was introduced in Qt 4.6.

List of all members, including inherited members

Properties

active : const bool

Public Functions

bool	active() const

Signals

void	activeChanged(bool active)

Detailed Description

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.

Property Documentation

active : const bool

This property holds the active property of this state. A state is active between entered() and exited() signals.

This property was introduced in Qt 5.4.

Access functions:

bool	active() const

Notifier signal:

void	activeChanged(bool active)

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