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The QEventTransition class provides a QObject-specific transition for Qt events. More...
Inherits QAbstractTransition.
Inherited by QKeyEventTransition and QMouseEventTransition.
The QEventTransition class provides a QObject-specific transition for Qt events.
A QEventTransition object binds an event to a particular QObject. QEventTransition is part of The State Machine Framework.
Example:
QPushButton *button = ...; QState *s1 = ...; QState *s2 = ...; // If in s1 and the button receives an Enter event, transition to s2 QEventTransition *enterTransition = new QEventTransition(button, QEvent.Enter); enterTransition->setTargetState(s2); s1->addTransition(enterTransition); // If in s2 and the button receives an Exit event, transition back to s1 QEventTransition *leaveTransition = new QEventTransition(button, QEvent.Leave); leaveTransition->setTargetState(s1); s2->addTransition(leaveTransition);
When reimplementing the eventTest() function, you should first call the base implementation to verify that the event is a QStateMachine.WrappedEvent for the proper object and event type. You may then cast the event to a QStateMachine.WrappedEvent and get the original event by calling QStateMachine.WrappedEvent.event(), and perform additional checks on that object.
See also QState.addTransition().
Constructs a new QEventTransition object with the given sourceState.
Constructs a new QEventTransition object associated with events of the given type for the given object, and with the given sourceState.
Reimplemented from QObject.event().
Reimplemented from QAbstractTransition.eventTest().
Reimplemented from QAbstractTransition.onTransition().
PyQt snapshot-4.7.1-5014f7c72a58 for X11 | Copyright © Riverbank Computing Ltd and Nokia 2010 | Qt 4.6.1 |