gwenview/lib/semanticinfo/nepomuksemanticinfobackend.h

   1 // vim: set tabstop=4 shiftwidth=4 noexpandtab:
   2 /*
   3 Gwenview: an image viewer
   4 Copyright 2008 Aurélien Gâteau <aurelien.gateau@free.fr>
   5
   6 This program is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU General Public License
   8 as published by the Free Software Foundation; either version 2
   9 of the License, or (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA.
  19
  20 */
  21 #ifndef NEPOMUKSEMANTICINFOBACKEND_H
  22 #define NEPOMUKSEMANTICINFOBACKEND_H
  23
  24 #include <lib/gwenviewlib_export.h>
  25
  26 // Qt
  27
  28 // KDE
  29
  30 // Local
  31 #include "abstractsemanticinfobackend.h"
  32
  33 namespace Gwenview {
  34
  35
  36 class NepomukSemanticInfoBackEndPrivate;
  37
  38
  39 /**
  40  * A real metadata backend using Nepomuk to store and retrieve metadata.
  41  */
  42 class GWENVIEWLIB_EXPORT NepomukSemanticInfoBackEnd : public AbstractSemanticInfoBackEnd {
  43         Q_OBJECT
  44 public:
  45         NepomukSemanticInfoBackEnd(QObject* parent);
  46         ~NepomukSemanticInfoBackEnd();
  47
  48         virtual TagSet allTags() const;
  49
  50         virtual void refreshAllTags();
  51
  52         virtual void storeSemanticInfo(const KUrl&, const SemanticInfo&);
  53
  54         virtual void retrieveSemanticInfo(const KUrl&);
  55
  56         virtual QString labelForTag(const SemanticInfoTag&) const;
  57
  58         virtual SemanticInfoTag tagForLabel(const QString&);
  59
  60         void emitSemanticInfoRetrieved(const KUrl&, const SemanticInfo&);
  61
  62 private:
  63         NepomukSemanticInfoBackEndPrivate* const d;
  64 };
  65
  66
  67 } // namespace
  68
  69 #endif /* NEPOMUKSEMANTICINFOBACKEND_H */