SimulatedPosition.h

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#pragma once
 
#include <QtPositioning/QGeoPositionInfoSource>
#include <QtCore/QLoggingCategory>
 
Q_DECLARE_LOGGING_CATEGORY(SimulatedPositionLog)
 
class Vehicle;
class QTimer;
 
class SimulatedPosition : public QGeoPositionInfoSource
{
   Q_OBJECT
 
public:
    SimulatedPosition(QObject* parent = nullptr);
    ~SimulatedPosition();
 
    QGeoPositionInfo lastKnownPosition(bool /*fromSatellitePositioningMethodsOnly = false*/) const final { return _lastPosition; }
 
    PositioningMethods supportedPositioningMethods() const final { return PositioningMethod::AllPositioningMethods; }
    int minimumUpdateInterval() const final { return kUpdateIntervalMsecs; }
    Error error() const final { return QGeoPositionInfoSource::NoError; }
 
public slots:
    void startUpdates() final;
    void stopUpdates() final;
    void requestUpdate(int timeout = 5000) final;
 
private slots:
    void _updatePosition();
    void _vehicleAdded(Vehicle *vehicle);
    void _vehicleHomePositionChanged(QGeoCoordinate homePosition);
 
private:
    QTimer *_updateTimer = nullptr;
    QGeoPositionInfo _lastPosition;
    QMetaObject::Connection _homePositionChangedConnection;
 
    static constexpr int kUpdateIntervalMsecs = 1000;
    static constexpr qreal kHorizontalVelocityMetersPerSec = 0.5;
    static constexpr qreal kVerticalVelocityMetersPerSec = 0.1;
    static constexpr qreal kHeading = 45.;
};