comparison data/fileio/BZipFileDevice.h @ 0:fc9323a41f5a

start base : Sonic Visualiser sv1-1.0rc1

+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2006 Chris Cannam.
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#ifndef _BZIP_FILE_DEVICE_H_
+#define _BZIP_FILE_DEVICE_H_
+
+#include <QIODevice>
+
+#include <bzlib.h>
+
+class BZipFileDevice : public QIODevice
+{
+    Q_OBJECT
+
+public:
+    BZipFileDevice(QString fileName);
+    virtual ~BZipFileDevice();
+    
+    virtual bool open(OpenMode mode);
+    virtual void close();
+
+    virtual bool isOK() const;
+
+    virtual bool isSequential() const { return true; }
+
+protected:
+    virtual qint64 readData(char *data, qint64 maxSize);
+    virtual qint64 writeData(const char *data, qint64 maxSize);
+
+    QString m_fileName;
+
+    FILE *m_file;
+    BZFILE *m_bzFile;
+    bool m_atEnd;
+    bool m_ok;
+};
+
+#endif