#ifndef IMG_IMGDATA_H
#define IMG_IMGDATA_H

#include "mapdata.h"

class QFile;

namespace IMG {

class IMGData : public MapData
{
public:
	IMGData(const QString &fileName);

	unsigned blockBits() const {return _blockBits;}
	bool readBlock(QFile &file, int blockNum, char *data) const;

private:
	typedef QMap<QByteArray, VectorTile*> TileMap;

	qint64 read(QFile &file, char *data, qint64 maxSize) const;
	template<class T> bool readValue(QFile &file, T &val) const;
	bool readSubFileBlocks(QFile &file, quint64 offset, SubFile *subFile);
	bool readFAT(QFile &file, TileMap &tileMap);
	bool readIMGHeader(QFile &file);
	bool createTileTree(const TileMap &tileMap);

	quint8 _key;
	unsigned _blockBits;
};

}

#endif // IMG_IMGDATA_H