map_manager.h

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#pragma once
 
#include "core/types.h"
 
#include <QObject>
 
namespace MapManagement
{
 
    ///
    /// \brief This is the class responsible for retrieving maps from
    /// Kartverket.
    ///
    class MapManager : public QObject
    {
        Q_OBJECT
      public:
        /// \brief Returns the singleton instance of the class.
        static MapManager&
        Instance()
        {
            static MapManager instance;
            return instance;
        }
 
        /// \brief Retrieves the map from Kartverket for the specified UTM
        /// coordinate and size.
        ///
        /// This function retrieves the satellite map data from Kartverket with
        /// a HTTP request for the specified UTM coordinate and size.
        ///
        /// \param coord The UTM coordinate for the center of the map.
        /// \param size The size of the map in meters.
        static void GetMap(Core::UTMCoordinate coord, int size);
 
        /// \brief Calculates the UTM corner coordinates for the specified UTM
        /// coordinate and size.
        ///
        /// This function calculates the UTM corner coordinates for the
        /// specified UTM coordinate and size, and stores them in the
        /// CornerCoordinates variable.
        ///
        /// \param coord The UTM coordinate for the center of the map.
        /// \param size The size of the map in meters.
        static void CalculateCornerCoordinates(Core::UTMCoordinate coord, int size);
 
        /// \brief Returns the map data as a byte array.
        static inline QByteArray&
        GetData()
        {
            return Instance().m_Data;
        }
 
        static inline int
        GetImageResolution()
        {
            return Instance().m_ImageResolution;
        }
 
      signals:
        /// \brief Signal emitted when the map image data has been retrieved.
        void GotImage();
        void RequestImage();
 
      private:
        /// \brief Constructor.
        MapManager() : m_ImageResolution{ 1024 } {};
 
        /// \brief Destructor.
        ~MapManager() = default;
 
        QByteArray m_Data;
        QString m_Area;
        int m_ImageResolution;
    };
 
} // namespace MapManagement