qt-everywhere-src-5.14.1/qtlocation/src/plugins/geoservices/osm/qgeofiletilecacheosm.h

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#ifndef QGEOFILETILECACHEOSM_H
#define QGEOFILETILECACHEOSM_H

#include "qgeotileproviderosm.h"
#include <QtLocation/private/qgeofiletilecache_p.h>
#include <QHash>
#include <QtConcurrent>
#include <qatomic.h>

QT_BEGIN_NAMESPACE

class QGeoFileTileCacheOsm : public QGeoFileTileCache
{
    Q_OBJECT
public:
    QGeoFileTileCacheOsm(const QVector<QGeoTileProviderOsm *> &providers,
                         const QString &offlineDirectory = QString(),
                         const QString &directory = QString(),
                         QObject *parent = 0);
    ~QGeoFileTileCacheOsm();

    QSharedPointer<QGeoTileTexture> get(const QGeoTileSpec &spec) override;

Q_SIGNALS:
    void mapDataUpdated(int mapId);

protected Q_SLOTS:
    void onProviderResolutionFinished(const QGeoTileProviderOsm *provider);
    void onProviderResolutionError(const QGeoTileProviderOsm *provider, QNetworkReply::NetworkError error);

protected:
    void init() override;
    inline QString tileSpecToFilename(const QGeoTileSpec &spec, const QString &format, int providerId) const;
    QString tileSpecToFilename(const QGeoTileSpec &spec, const QString &format, const QString &directory) const override;
    QGeoTileSpec filenameToTileSpec(const QString &filename) const override;
    QSharedPointer<QGeoTileTexture> getFromOfflineStorage(const QGeoTileSpec &spec);
    void dropTiles(int mapId);
    void loadTiles(int mapId);

    void clearObsoleteTiles(const QGeoTileProviderOsm *p);

    QDir m_offlineDirectory;
    bool m_offlineData;
    QVector<QGeoTileProviderOsm *> m_providers;
    QVector<bool> m_highDpi;
    QVector<QDateTime> m_maxMapIdTimestamps;
};

QT_END_NAMESPACE

#endif // QGEOFILETILECACHEOSM_H