File indexing completed on 2024-04-28 15:40:26

 /* SPDX-FileCopyrightText: 2008-2010 Henner Zeller <h.zeller@acm.org>
 
    based on Utilities::createUniqNameMap() by <blackie@kde.org>
 
    SPDX-License-Identifier: GPL-2.0-or-later
 */
 #ifndef UTILITIES_UNIQ_FILENAME_MAPPER_H
 #define UTILITIES_UNIQ_FILENAME_MAPPER_H
 
 #include <kpabase/FileName.h>
 
 #include <QMap>
 #include <QSet>
 #include <QString>
 
 namespace Utilities
 {
 
 /**
  * The UniqFilenameMapper creates flat filenames from arbitrary input filenames
  * so that there are no conflicts if they're written in one directory together.
  * The resulting names do not contain any path unless a targetDirectory is
  * given in the constructor.
  *
  * Example:
  * uniqNameFor("cd1/def.jpg")      -> def.jpg
  * uniqNameFor("cd1/abc/file.jpg") -> file.jpg
  * uniqNameFor("cd3/file.jpg")     -> file-1.jpg
  * uniqNameFor("cd1/abc/file.jpg") -> file.jpg    // file from above.
  */
 class UniqFilenameMapper
 {
 public:
     UniqFilenameMapper();
 
     // Create a UniqFilenameMapper that returns filenames with the
     // targetDirectory prepended.
     // The UniqFilenameMapper makes sure, that generated filenames do not
     // previously exist in the targetDirectory.
     explicit UniqFilenameMapper(const QString &targetDirectory);
 
     // Create a unique, flat filename for the target directory. If this method
     // has been called before with the same argument, the unique name that has
     // been created before is returned (see example above).
     QString uniqNameFor(const DB::FileName &filename);
 
     // Reset all mappings.
     void reset();
 
 private:
     UniqFilenameMapper(const UniqFilenameMapper &); // don't copy.
 
     bool fileClashes(const QString &file);
 
     const QString m_targetDirectory;
     typedef QMap<DB::FileName, QString> FileNameMap;
     FileNameMap m_origToUniq;
     QSet<QString> m_uniqFiles;
 };
 }
 #endif /* UTILITIES_UNIQ_FILENAME_MAPPER_H */
 // vi:expandtab:tabstop=4 shiftwidth=4: