MapProvider.h

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#pragma once
 
#include <QtCore/QByteArray>
#include <QtCore/QString>
#include <QtCore/QUrl>
 
#include "QGCTileSet.h"
 
#define QGC_MAX_MAP_ZOOM 23
static constexpr const quint32 QGC_AVERAGE_TILE_SIZE = 13652;
 
// TODO: Inherit from QGeoMapType
class MapProvider
{
public:
    // Mirror of QGeoMapType::MapStyle (kept in sync manually so this header
    // doesn't need to pull QtLocation/private/qgeomaptype_p.h). Converted at
    // the boundary in QGeoTiledMappingManagerEngineQGC.cpp.
    enum MapStyle {
        NoMap = 0,
        StreetMap,
        SatelliteMapDay,
        SatelliteMapNight,
        TerrainMap,
        HybridMap,
        TransitMap,
        GrayStreetMap,
        PedestrianMap,
        CarNavigationMap,
        CycleMap,
        CustomMap = 100
    };
 
    MapProvider(const QString &mapName, const QString &referrer, const QString &imageFormat, quint32 averageSize = QGC_AVERAGE_TILE_SIZE,
                MapStyle mapStyle = CustomMap);
    virtual ~MapProvider();
 
    QUrl getTileURL(int x, int y, int zoom) const;
 
    QString getImageFormat(QByteArrayView image) const;
 
    // TODO: Download Random Tile And Use That Size Instead?
    quint32 getAverageSize() const { return _averageSize; }
 
    MapStyle getMapStyle() const { return _mapStyle; }
    const QString& getMapName() const { return _mapName; }
    int getMapId() const { return _mapId; }
    const QString& getReferrer() const { return _referrer; }
    virtual QByteArray getToken() const { return QByteArray(); }
 
    virtual int long2tileX(double lon, int z) const;
    virtual int lat2tileY(double lat, int z) const;
    virtual double tileX2long(int x, int z) const;
    virtual double tileY2lat(int y, int z) const;
 
    virtual bool isElevationProvider() const { return false; }
    virtual bool isBingProvider() const { return false; }
 
    virtual bool isUserSelectable() const { return true; }
 
    virtual QGCTileSet getTileCount(int zoom, double topleftLon,
                                    double topleftLat, double bottomRightLon,
                                    double bottomRightLat) const;
 
protected:
    QString _tileXYToQuadKey(int tileX, int tileY, int levelOfDetail) const;
    int _getServerNum(int x, int y, int max) const;
 
    virtual QString _getURL(int x, int y, int zoom) const = 0;
 
    const QString _mapName;
    const QString _referrer;
    const QString _imageFormat;
    const quint32 _averageSize;
    const MapStyle _mapStyle;
    const QString _language;
    const int _mapId;
 
private:
    static int _mapIdIndex;
};