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kfilterdev.h
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1 /* This file is part of the KDE libraries
2  Copyright (C) 2000 David Faure <faure@kde.org>
3 
4  This library is free software; you can redistribute it and/or
5  modify it under the terms of the GNU Library General Public
6  License version 2 as published by the Free Software Foundation.
7 
8  This library is distributed in the hope that it will be useful,
9  but WITHOUT ANY WARRANTY; without even the implied warranty of
10  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11  Library General Public License for more details.
12 
13  You should have received a copy of the GNU Library General Public License
14  along with this library; see the file COPYING.LIB. If not, write to
15  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
16  Boston, MA 02110-1301, USA.
17 */
18 #ifndef __kfilterdev_h
19 #define __kfilterdev_h
20 
21 #include <karchive_export.h>
22 #include <QtCore/QIODevice>
23 #include <QtCore/QString>
24 
25 class QFile;
26 class KFilterBase;
27 
36 class KARCHIVE_EXPORT KFilterDev : public QIODevice
37 {
38 public:
43  virtual ~KFilterDev();
44 
49  virtual bool open( QIODevice::OpenMode mode );
54  virtual void close();
55 
61  void setOrigFileName( const QByteArray & fileName );
62 
68  void setSkipHeaders();
69 
73  virtual bool seek( qint64 );
74 
75  virtual bool atEnd() const;
76 
79  //virtual bool isSequential() const { return true; }
80 
81 public:
82 
83 
84  // KDE4 TODO: turn those static methods into constructors
85 
112  static QIODevice * deviceForFile( const QString & fileName, const QString & mimetype = QString(),
113  bool forceFilter = false );
114 
133  static QIODevice * device( QIODevice* inDevice, const QString & mimetype, bool autoDeleteInDevice = true );
134 
135 protected:
136  virtual qint64 readData( char *data, qint64 maxlen );
137  virtual qint64 writeData( const char *data, qint64 len );
138 
139 private:
146  explicit KFilterDev( KFilterBase * filter, bool autoDeleteFilterBase = false );
147 private:
148  class Private;
149  Private* const d;
150 };
151 
152 
153 #endif
qint64
QString
KDE::open
int open(const QString &pathname, int flags, mode_t mode)
Definition: kde_file_win.cpp:158
KFilterDev
A class for reading and writing compressed data onto a device (e.g.
Definition: kfilterdev.h:36
KFilterBase
This is the base class for compression filters such as gzip and bzip2.
Definition: kfilterbase.h:36
karchive_export.h
KARCHIVE_EXPORT
#define KARCHIVE_EXPORT
Definition: karchive_export.h:46
QIODevice
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