qgsmbtiles.h

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/***************************************************************************
  qgsmbtiles.h
  --------------------------------------
  Date                 : January 2020
  Copyright            : (C) 2020 by Martin Dobias
  Email                : wonder dot sk at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSMBTILES_H
#define QGSMBTILES_H
 
#include "qgis_core.h"
 
#include "sqlite3.h"
#include "qgssqliteutils.h"
 
#define SIP_NO_FILE
 
class QImage;
class QgsRectangle;
 
class CORE_EXPORT QgsMbTiles
{
  public:
    explicit QgsMbTiles( const QString &filename );
 
    bool open();
 
    bool isOpen() const;
 
    bool create();
 
    QString metadataValue( const QString &key );
 
    void setMetadataValue( const QString &key, const QString &value );
 
    QgsRectangle extent();
 
    QByteArray tileData( int z, int x, int y );
 
    QImage tileDataAsImage( int z, int x, int y );
 
    void setTileData( int z, int x, int y, const QByteArray &data );
 
    static bool decodeGzip( const QByteArray &bytesIn, QByteArray &bytesOut );
    static bool encodeGzip( const QByteArray &bytesIn, QByteArray &bytesOut );
 
  private:
    QString mFilename;
    sqlite3_database_unique_ptr mDatabase;
};
 
 
#endif // QGSMBTILES_H