Viewer3DTileQuery.h

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#pragma once
 
#include <QtCore/QByteArray>
#include <QtCore/QObject>
#include <QtCore/QPoint>
#include <QtCore/QSize>
#include <QtCore/QString>
#include <QtCore/QStringList>
#include <QtGui/QImage>
#include <QtPositioning/QGeoCoordinate>
 
#include "Viewer3DTileInfo.h"
#include "Viewer3DTileStatistics.h"
 
class Viewer3DTileReply;
class QNetworkAccessManager;
 
class Viewer3DTileQuery : public QObject
{
    Q_OBJECT
 
    friend class Viewer3DTileQueryTest;
 
public:
    using TileStatistics_t = Viewer3DTileStatistics;
 
    explicit Viewer3DTileQuery(QObject *parent = nullptr);
 
    void adaptiveMapTilesLoader(const QString &mapType, int mapId, const QGeoCoordinate &coordinateMin, const QGeoCoordinate &coordinateMax);
    int maxTileCount(int zoomLevel, const QGeoCoordinate &coordinateMin, const QGeoCoordinate &coordinateMax);
    QByteArray mapData() const { return _mapToBeLoaded.mapData(); }
    QSize mapSize() const { return QSize(_mapToBeLoaded.mapWidth, _mapToBeLoaded.mapHeight); }
 
signals:
    void loadingMapCompleted();
    void textureGeometryReady(TileStatistics_t tileInfo);
 
private:
    void _loadMapTiles(int zoomLevel, QPoint tileMinIndex, QPoint tileMaxIndex);
    TileStatistics_t _findAndLoadMapTiles(int zoomLevel, const QGeoCoordinate &coordinateMin, const QGeoCoordinate &coordinateMax);
    void _tileDone(Viewer3DTileInfo tileData);
    void _tileGiveUp(Viewer3DTileInfo tileData);
    void _tileEmpty(Viewer3DTileInfo tileData);
    void _cleanupReply(Viewer3DTileReply *reply);
    static QString _tileKey(int mapId, int x, int y, int zoomLevel);
 
    struct MapTileContainer_t
    {
        static constexpr int tileSize = 256;
 
        QStringList tileList;
        QPoint tileMinIndex;
        QPoint tileMaxIndex;
        QPoint currentTileIndex;
        QByteArray currentTileData;
        QImage mapTextureImage;
 
        int zoomLevel = 0;
        int mapWidth = 0;
        int mapHeight = 0;
 
        void init();
        void setMapTile();
        QByteArray mapData() const;
        void clear();
    };
 
    QNetworkAccessManager *_networkManager = nullptr;
    MapTileContainer_t _mapToBeLoaded;
    QGeoCoordinate _textureCoordinateMin;
    QGeoCoordinate _textureCoordinateMax;
    QString _mapType;
 
    int _totalTilesCount = 0;
    int _mapId = 0;
    int _zoomLevel = 0;
};