BaroCache.h

/***************************************************************************
 *   Copyright (C) 2025 by Markus Marks and Stefan Kebekus                 *
 *   stefan.kebekus@gmail.com                                              *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 3 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
 
 
#pragma once
 
#include <QGeoPositionInfo>
#include <QPropertyNotifier>
#include <QTime>
 
#include "units/Distance.h"
 
 
namespace Navigation
{

class BaroCache : public QObject
{
    Q_OBJECT
 
public:
    BaroCache(QObject* parent = nullptr);
 
    // Default destructor
    ~BaroCache() override = default;
 
 
    //
    // Methods
    //

    [[nodiscard]] Q_INVOKABLE Units::Distance estimatedPressureAltitude(Units::Distance geometricAltitude);
 
private:
    Q_DISABLE_COPY_MOVE(BaroCache)
 
    void addIncomingBaroCacheData();
 
    Units::Distance m_incomingGeometricAltitude;
    QDateTime m_incomingGeometricAltitudeTimestamp;
 
    Units::Distance m_incomingPressureAltitude;
    QDateTime m_incomingPressureAltitudeTimestamp;
 
    struct altitudeElement
    {
        QDateTime timestamp;
        Units::Distance pressureAltitude;
        Units::Distance geometricAltitude;
    };
 
    QMap<int, altitudeElement> m_altitudeElementsByFlightLevel;
 
    std::vector<QPropertyNotifier> notifiers;
};
 
} // namespace Navigation