view data/fileio/BZipFileDevice.h @ 1833:21c792334c2e sensible-delimited-data-strings

Rewrite all the DelimitedDataString stuff so as to return vectors of individual cell strings rather than having the classes add the delimiters themselves. Rename accordingly to names based on StringExport. Take advantage of this in the CSV writer code so as to properly quote cells that contain delimiter characters.

/* -*- 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 SV_BZIP_FILE_DEVICE_H
#define SV_BZIP_FILE_DEVICE_H

#include <QIODevice>
#include <QFile>

#include <bzlib.h>

class BZipFileDevice : public QIODevice
{
    Q_OBJECT

public:
    BZipFileDevice(QString fileName);
    virtual ~BZipFileDevice();
    
    bool open(OpenMode mode) override;
    void close() override;

    virtual bool isOK() const;

    bool isSequential() const override { return true; }

protected:
    qint64 readData(char *data, qint64 maxSize) override;
    qint64 writeData(const char *data, qint64 maxSize) override;

    QString m_fileName;

    QFile m_qfile;
    FILE *m_file;
    BZFILE *m_bzFile;
    bool m_atEnd;
    bool m_ok;
};

#endif