SQLDB/SQLImageInfoCollection.h

   1 /*
   2   Copyright (C) 2006 Tuomas Suutari <thsuut@utu.fi>
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful, but
  10   WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12   General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program (see the file COPYING); if not, write to the
  16   Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  17   MA 02110-1301 USA.
  18 */
  19
  20 #ifndef SQLIMAGEINFOCOLLECTION_H
  21 #define SQLIMAGEINFOCOLLECTION_H
  22
  23 #include "DB/ImageInfoPtr.h"
  24 #include "QueryHelper.h"
  25 #include "DB/ResultId.h"
  26 #include <qobject.h>
  27 #include <qmap.h>
  28 //#include <qmutex.h>
  29 namespace DB { class Category; }
  30
  31 namespace SQLDB {
  32     class SQLImageInfoCollection: public QObject
  33     {
  34         Q_OBJECT
  35
  36     public:
  37         explicit SQLImageInfoCollection(QueryHelper& queryHelper);
  38         ~SQLImageInfoCollection();
  39         DB::ImageInfoPtr getImageInfoOf(const QString& relativeFilename) const;
  40         DB::ImageInfoPtr getImageInfoOf(const DB::ResultId& id) const;
  41         QString filenameForId(DB::RawId id) const;
  42         void setLock(const DB::ImageSearchInfo& scope, bool invert=false);
  43         void unsetLock();
  44         void clearCache();
  45
  46     public slots:
  47         void deleteTag(DB::Category* category, const QString& item);
  48         void renameTag(DB::Category* category,
  49                        const QString& oldName, const QString& newName);
  50
  51     protected:
  52         void setLocking(DB::ImageInfoPtr p) const;
  53         void updateLockingInfo() const;
  54         QueryHelper& _qh;
  55
  56     private:
  57         mutable QMap<QString, DB::RawId> _filenameIdMap;
  58         mutable QMap<DB::RawId, QString> _idFilenameMap;
  59         mutable QMap<DB::RawId, DB::ImageInfoPtr> _infoPointers;
  60         // mutable QMutex _mutex;
  61         DB::ImageSearchInfo* _lockingScope;
  62         bool _invertLock;
  63     };
  64 }
  65
  66 #endif /* SQLIMAGEINFOCOLLECTION_H */