TimeoutTransition.h

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#pragma once
 
#include "QGCSignalTransition.h"
 
#include <QtCore/QTimer>
 
class TimeoutTransition : public QGCSignalTransition
{
    Q_OBJECT
    Q_DISABLE_COPY(TimeoutTransition)
 
public:
    explicit TimeoutTransition(int timeoutMsecs, QAbstractState* target = nullptr);
 
    void attachToSourceState(QState* source);
 
    int timeoutMsecs() const { return _timeoutMsecs; }
 
    void setTimeoutMsecs(int msecs) { _timeoutMsecs = msecs; }
 
    bool isTimerActive() const { return _timer.isActive(); }
 
signals:
    void timeout();
 
protected:
    bool event(QEvent* e) override;
    void onTransition(QEvent* event) override;
 
private slots:
    void _onSourceStateEntered();
    void _onSourceStateExited();
 
private:
    void _onAddedToState();
 
    int _timeoutMsecs;
    QTimer _timer;
    bool _sourceAttached = false;
};