imagescanner.h

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#ifndef IMAGESCANNER_H
#define IMAGESCANNER_H
 
#include <QFileInfo>
#include <QDir>
#include <QElapsedTimer>
#include <QRegularExpression>
 
#include "imagethumbs.h"
 
 
template <class DBFS>
class META_PUBLIC ImageScanThread : public MThread
{
public:
    ImageScanThread(DBFS *dbfs, ImageThumb<DBFS> *thumbGen);
    ~ImageScanThread() override;
 
    void        cancel();
    bool        IsScanning();
    bool        ClearsPending();
    void        ChangeState(bool scan);
    void        EnqueueClear(int devId, const QString &action);
    QStringList GetProgress();
 
protected:
    void run() override; // MThread
 
private:
    Q_DISABLE_COPY(ImageScanThread)
 
    void SyncSubTree(const QFileInfo &dirInfo, int parentId, int devId,
                     const QString &base);
    int  SyncDirectory(const QFileInfo &dirInfo, int devId,
                       const QString &base, int parentId);
    void PopulateMetadata(const QString &path, int type, QString &comment,
                          std::chrono::seconds &time,
                          int &orientation);
    void SyncFile(const QFileInfo &fileInfo, int devId,
                  const QString &base, int parentId);
    void CountTree(QDir &dir);
    void CountFiles(const QStringList &paths);
    void Broadcast(int progress);
 
    using ClearTask = QPair<int, QString>;
 
    bool              m_scanning {false}; 
    QMutex            m_mutexState; 
    QList<ClearTask>  m_clearQueue; 
    QMutex            m_mutexQueue; 
    DBFS             &m_dbfs;       
    ImageThumb<DBFS> &m_thumb;      
 
    ImageHash   m_dbDirMap;
    ImageHash   m_dbFileMap;
    ImageHash   m_seenDir;
    NameHash    m_seenFile;
    QStringList m_changedImages;
 
    QElapsedTimer m_bcastTimer;
    int           m_progressCount      {0}; 
    int           m_progressTotalCount {0}; 
    QMutex        m_mutexProgress;      
 
    QDir m_dir;
    QRegularExpression m_exclusions;
};
 
#endif // IMAGESCANNER_H