diff options
Diffstat (limited to 'src/imports/statemachine/statemachine.cpp')
| -rw-r--r-- | src/imports/statemachine/statemachine.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/imports/statemachine/statemachine.cpp b/src/imports/statemachine/statemachine.cpp index ca6c59b6ac..a983644018 100644 --- a/src/imports/statemachine/statemachine.cpp +++ b/src/imports/statemachine/statemachine.cpp @@ -51,6 +51,7 @@ StateMachine::StateMachine(QObject *parent) : QStateMachine(parent), m_completed(false), m_running(false) { connect(this, SIGNAL(runningChanged(bool)), SIGNAL(qmlRunningChanged())); + connect(this, SIGNAL(childModeChanged()), SLOT(checkChildMode())); } bool StateMachine::isRunning() const @@ -66,6 +67,15 @@ void StateMachine::setRunning(bool running) m_running = running; } +void StateMachine::checkChildMode() +{ + if (childMode() != QState::ExclusiveStates) { + qmlWarning(this) << "Setting the childMode of a StateMachine to anything else than\n" + "QState.ExclusiveStates will result in an invalid state machine,\n" + "and can lead to incorrect behavior!"; + } +} + void StateMachine::componentComplete() { if (QStateMachine::initialState() == nullptr && childMode() == QState::ExclusiveStates) @@ -129,6 +139,9 @@ QQmlListProperty<QObject> StateMachine::children() erroneous state, the machine will stop executing and an error message will be printed to the console. + \warning Setting the childMode of a StateMachine to anything else than QState::ExclusiveStates + will result in an invalid state machine, and can lead to incorrect behavior. + \clearfloat \sa QAbstractState, State, SignalTransition, TimeoutTransition, HistoryState {The Declarative State Machine Framework} |