annotate data/fileio/CSVFileReader.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_CSV_FILE_READER_H
#define SV_CSV_FILE_READER_H

#include "DataFileReader.h"

#include "CSVFormat.h"

#include "base/BaseTypes.h"

#include <QList>
#include <QStringList>
#include <QIODevice>

class QFile;
class ProgressReporter;

class CSVFileReader : public DataFileReader
{
public:
    /**
     * Construct a CSVFileReader to read the CSV file at the given
     * path, with the given format.
     */
    CSVFileReader(QString path, CSVFormat format,
                  sv_samplerate_t mainModelSampleRate,
                  ProgressReporter *reporter = 0);

    /**
     * Construct a CSVFileReader to read from the given
     * QIODevice. Caller retains ownership of the QIODevice: the
     * CSVFileReader will not close or delete it and it must outlive
     * the CSVFileReader.
     */
    CSVFileReader(QIODevice *device, CSVFormat format,
                  sv_samplerate_t mainModelSampleRate,
                  ProgressReporter *reporter = 0);

    virtual ~CSVFileReader();

    bool isOK() const override;
    QString getError() const override;

    Model *load() const override;

protected:
    CSVFormat m_format;
    QIODevice *m_device;
    bool m_ownDevice;
    QString m_filename;
    QString m_error;
    mutable int m_warnings;
    sv_samplerate_t m_mainModelSampleRate;
    qint64 m_fileSize;
    mutable qint64 m_readCount;
    mutable int m_progress;
    ProgressReporter *m_reporter;

    sv_frame_t convertTimeValue(QString, int lineno, sv_samplerate_t sampleRate,
                                int windowSize) const;

    QString getConvertedAudioFilePath() const;
};


#endif