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/* -*- 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 _CSV_FORMAT_H_
#define _CSV_FORMAT_H_
#include <QString>
#include <QStringList>
#include "base/BaseTypes.h"
class CSVFormat
{
public:
enum ModelType {
OneDimensionalModel,
TwoDimensionalModel,
TwoDimensionalModelWithDuration,
TwoDimensionalModelWithDurationAndPitch,
ThreeDimensionalModel
};
enum TimingType {
ExplicitTiming,
ImplicitTiming
};
enum TimeUnits {
TimeSeconds,
TimeMilliseconds,
TimeAudioFrames,
TimeWindows,
};
enum ColumnPurpose {
ColumnUnknown,
ColumnStartTime,
ColumnEndTime,
ColumnDuration,
ColumnValue,
ColumnPitch,
ColumnLabel
};
enum ColumnQuality {
ColumnNumeric = 1,
ColumnIntegral = 2,
ColumnIncreasing = 4,
ColumnLarge = 8,
ColumnNearEmpty = 16,
};
typedef unsigned int ColumnQualities;
CSVFormat() : // arbitrary defaults
m_modelType(TwoDimensionalModel),
m_timingType(ExplicitTiming),
m_timeUnits(TimeSeconds),
m_separator(","),
m_sampleRate(44100),
m_windowSize(1024),
m_columnCount(0),
m_variableColumnCount(false),
m_allowQuoting(true),
m_maxExampleCols(0)
{ }
CSVFormat(QString path); // guess format
/**
* Guess the format of the given CSV file, setting the fields in
* this object accordingly. If the current separator is the empty
* string, the separator character will also be guessed; otherwise
* the current separator will be used. The other properties of
* this object will be set according to guesses from the file.
*/
void guessFormatFor(QString path);
ModelType getModelType() const { return m_modelType; }
TimingType getTimingType() const { return m_timingType; }
TimeUnits getTimeUnits() const { return m_timeUnits; }
sv_samplerate_t getSampleRate() const { return m_sampleRate; }
int getWindowSize() const { return m_windowSize; }
int getColumnCount() const { return m_columnCount; }
bool getAllowQuoting() const { return m_allowQuoting; }
QChar getSeparator() const {
if (m_separator == "") return ' ';
else return m_separator[0];
}
void setModelType(ModelType t) { m_modelType = t; }
void setTimingType(TimingType t) { m_timingType = t; }
void setTimeUnits(TimeUnits t) { m_timeUnits = t; }
void setSeparator(QChar s) { m_separator = s; }
void setSampleRate(sv_samplerate_t r) { m_sampleRate = r; }
void setWindowSize(int s) { m_windowSize = s; }
void setColumnCount(int c) { m_columnCount = c; }
void setAllowQuoting(bool q) { m_allowQuoting = q; }
QList<ColumnPurpose> getColumnPurposes() const { return m_columnPurposes; }
void setColumnPurposes(QList<ColumnPurpose> cl) { m_columnPurposes = cl; }
ColumnPurpose getColumnPurpose(int i);
ColumnPurpose getColumnPurpose(int i) const;
void setColumnPurpose(int i, ColumnPurpose p);
// read-only; only valid if format has been guessed:
QList<ColumnQualities> getColumnQualities() const { return m_columnQualities; }
// read-only; only valid if format has been guessed:
QList<QStringList> getExample() const { return m_example; }
int getMaxExampleCols() const { return m_maxExampleCols; }
protected:
ModelType m_modelType;
TimingType m_timingType;
TimeUnits m_timeUnits;
QString m_separator;
sv_samplerate_t m_sampleRate;
int m_windowSize;
int m_columnCount;
bool m_variableColumnCount;
QList<ColumnQualities> m_columnQualities;
QList<ColumnPurpose> m_columnPurposes;
QList<float> m_prevValues;
bool m_allowQuoting;
QList<QStringList> m_example;
int m_maxExampleCols;
void guessSeparator(QString line);
void guessQualities(QString line, int lineno);
void guessPurposes();
void guessFormatFor_Old(QString path);
};
#endif
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