annotate data/fileio/BZipFileDevice.h @ 467:c9b055f84326

* make use of CachedFile (untested)
author Chris Cannam
date Mon, 27 Oct 2008 18:15:20 +0000
parents 8ee6cf529c4e
children b3cb0edc25cd
rev   line source
Chris@148 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@148 2
Chris@148 3 /*
Chris@148 4 Sonic Visualiser
Chris@148 5 An audio file viewer and annotation editor.
Chris@148 6 Centre for Digital Music, Queen Mary, University of London.
Chris@148 7 This file copyright 2006 Chris Cannam.
Chris@148 8
Chris@148 9 This program is free software; you can redistribute it and/or
Chris@148 10 modify it under the terms of the GNU General Public License as
Chris@148 11 published by the Free Software Foundation; either version 2 of the
Chris@148 12 License, or (at your option) any later version. See the file
Chris@148 13 COPYING included with this distribution for more information.
Chris@148 14 */
Chris@148 15
Chris@148 16 #ifndef _BZIP_FILE_DEVICE_H_
Chris@148 17 #define _BZIP_FILE_DEVICE_H_
Chris@148 18
Chris@148 19 #include <QIODevice>
Chris@148 20
Chris@148 21 #include <bzlib.h>
Chris@148 22
Chris@148 23 class BZipFileDevice : public QIODevice
Chris@148 24 {
Chris@148 25 Q_OBJECT
Chris@148 26
Chris@148 27 public:
Chris@148 28 BZipFileDevice(QString fileName);
Chris@148 29 virtual ~BZipFileDevice();
Chris@148 30
Chris@148 31 virtual bool open(OpenMode mode);
Chris@148 32 virtual void close();
Chris@148 33
Chris@207 34 virtual bool isOK() const;
Chris@207 35
Chris@148 36 virtual bool isSequential() const { return true; }
Chris@148 37
Chris@148 38 protected:
Chris@148 39 virtual qint64 readData(char *data, qint64 maxSize);
Chris@148 40 virtual qint64 writeData(const char *data, qint64 maxSize);
Chris@148 41
Chris@148 42 QString m_fileName;
Chris@148 43
Chris@148 44 FILE *m_file;
Chris@148 45 BZFILE *m_bzFile;
Chris@148 46 bool m_atEnd;
Chris@207 47 bool m_ok;
Chris@148 48 };
Chris@148 49
Chris@148 50 #endif