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KDECore

kmemfile.h

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00001 /*
00002    This file is part of the KDE libraries
00003    Copyright (C) 2008 Christian Ehrlicher <ch.ehrlicher@gmx.de>
00004 
00005    This library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Library General Public
00007    License as published by the Free Software Foundation; either
00008    version 2 of the License, or (at your option) any later version.
00009 
00010    This library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Library General Public License for more details.
00014 
00015    You should have received a copy of the GNU Library General Public License
00016    along with this library; see the file COPYING.LIB.  If not, write to
00017    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00018    Boston, MA 02110-1301, USA.
00019 */
00020 
00021 #ifndef KMEMFILE_H
00022 #define KMEMFILE_H
00023 
00024 #include <QtCore/QIODevice>
00025 #include <kdecore_export.h>
00026 
00037 class KDECORE_EXPORT KMemFile : public QIODevice
00038 {
00039 public:
00046   explicit KMemFile ( const QString &filename, QObject *parent = 0 );
00050   virtual ~KMemFile();
00054   virtual void close ();
00059   virtual bool isSequential () const;
00064   virtual bool open ( OpenMode mode );
00069   virtual bool seek ( qint64 pos );
00073   virtual qint64 size () const;
00079   static void fileContentsChanged ( const QString &filename );
00080 protected:
00081   virtual qint64 readData ( char * data, qint64 maxSize );
00082   virtual qint64 writeData ( const char * data, qint64 maxSize );
00083 private:
00084   class Private;
00085   friend class Private;
00086   Private * const d;
00087 };
00088 
00089 #endif  // KMEMFILE_H

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