src/map/mbtilesmap.h

   1 #ifndef MBTILESMAP_H
   2 #define MBTILESMAP_H
   3
   4 #include <QSqlDatabase>
   5 #include <QVector>
   6 #include "map.h"
   7
   8 class MBTilesMap : public Map
   9 {
  10 public:
  11         MBTilesMap(const QString &fileName, QObject *parent = 0);
  12
  13         QString name() const {return _name;}
  14
  15         QRectF bounds();
  16         RectC llBounds(const Projection &) {return _bounds;}
  17         qreal resolution(const QRectF &rect);
  18
  19         int zoom() const {return _zi;}
  20         void setZoom(int zoom) {_zi = zoom;}
  21         int zoomFit(const QSize &size, const RectC &rect);
  22         int zoomIn();
  23         int zoomOut();
  24
  25         QPointF ll2xy(const Coordinates &c);
  26         Coordinates xy2ll(const QPointF &p);
  27
  28         void draw(QPainter *painter, const QRectF &rect, Flags flags);
  29
  30         void load(const Projection &in, const Projection &out, qreal deviceRatio,
  31           bool hidpi);
  32         void unload();
  33
  34         bool isValid() const {return _valid;}
  35         QString errorString() const {return _errorString;}
  36
  37         static Map *create(const QString &path, bool *isDir);
  38
  39 private:
  40         qreal tileSize() const;
  41         qreal coordinatesRatio() const;
  42         qreal imageRatio() const;
  43         QByteArray tileData(int zoom, const QPoint &tile) const;
  44         void drawTile(QPainter *painter, QPixmap &pixmap, QPointF &tp);
  45
  46         QSqlDatabase _db;
  47
  48         QString _name;
  49         RectC _bounds;
  50         QVector<int> _zooms;
  51         int _zi;
  52         int _tileSize;
  53         qreal _mapRatio, _tileRatio;
  54         bool _scalable;
  55         int _scaledSize;
  56
  57         bool _valid;
  58         QString _errorString;
  59 };
  60
  61 #endif // MBTILESMAP_H