File indexing completed on 2024-04-14 03:48:08

 // SPDX-FileCopyrightText: 2010 Jens-Michael Hoffmann <jmho@c-xx.com>
 // SPDX-FileCopyrightText: 2010-2012 Bernhard Beschow <bbeschow@cs.tu-berlin.de>
 //
 // SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef MARBLE_TILELOADER_H
 #define MARBLE_TILELOADER_H
 
 #include <QObject>
 
 #include "PluginManager.h"
 #include "MarbleGlobal.h"
 
 class QByteArray;
 class QImage;
 class QUrl;
 class QString;
 
 namespace Marble
 {
 class TileId;
 class HttpDownloadManager;
 class GeoDataDocument;
 class GeoSceneTileDataset;
 class GeoSceneTextureTileDataset;
 class GeoSceneVectorTileDataset;
 
 class TileLoader: public QObject
 {
     Q_OBJECT
 
  public:
     enum TileStatus {
         Missing,
         Expired,
         Available
     };
 
     explicit TileLoader(HttpDownloadManager * const, const PluginManager * );
     ~TileLoader() override;
 
     QImage loadTileImage( GeoSceneTextureTileDataset const *textureData, TileId const & tileId, DownloadUsage const );
     GeoDataDocument* loadTileVectorData( GeoSceneVectorTileDataset const *vectorData, TileId const & tileId, DownloadUsage const usage );
     void downloadTile( GeoSceneTileDataset const *tileData, TileId const &, DownloadUsage const );
 
     static int maximumTileLevel( GeoSceneTileDataset const & tileData );
 
     /**
      * Returns whether the mandatory most basic tile level is fully available for
      * the given @p layer.
      */
     static bool baseTilesAvailable( GeoSceneTileDataset const & tileData );
 
     /**
       * Returns the status of the downloaded tile file:
       * - Missing when it has not been downloaded
       * - Expired when it has been downloaded, but is too old (as per .dgml expiration time)
       * - Available when it has been downloaded and is not expired
       */
     static TileStatus tileStatus( GeoSceneTileDataset const *tileData, const TileId &tileId );
 
  private Q_SLOTS:
     void updateTile( QByteArray const & imageData, QString const & tileId );
     void updateTile( QString const & fileName, QString const & idStr );
 
  Q_SIGNALS:
     void downloadTile( QUrl const & sourceUrl, QString const & destinationFileName,
                        QString const & id, DownloadUsage );
 
     void tileCompleted( TileId const & tileId, QImage const & tileImage );
 
     void tileCompleted( TileId const & tileId, GeoDataDocument * document );
 
  private:
     static QString tileFileName( GeoSceneTileDataset const * tileData, TileId const & );
     void triggerDownload( GeoSceneTileDataset const *tileData, TileId const &, DownloadUsage const );
     static QImage scaledLowerLevelTile( GeoSceneTextureTileDataset const * textureData, TileId const & );
     GeoDataDocument* openVectorFile(const QString &filename) const;
 
     // For vectorTile parsing
     PluginManager const * m_pluginManager;
 };
 
 }
 
 #endif