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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Sonic Visualiser
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5 An audio file viewer and annotation editor.
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6 Centre for Digital Music, Queen Mary, University of London.
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7 This file copyright 2006 Chris Cannam.
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8
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9 This program is free software; you can redistribute it and/or
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10 modify it under the terms of the GNU General Public License as
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11 published by the Free Software Foundation; either version 2 of the
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12 License, or (at your option) any later version. See the file
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13 COPYING included with this distribution for more information.
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14 */
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15
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16 #ifndef SV_CSV_FORMAT_H
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17 #define SV_CSV_FORMAT_H
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18
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19 #include <QString>
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20 #include <QStringList>
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21
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22 #include "base/BaseTypes.h"
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23
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24 class CSVFormat
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25 {
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26 public:
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27 enum ModelType {
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28 OneDimensionalModel,
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29 TwoDimensionalModel,
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30 TwoDimensionalModelWithDuration,
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31 TwoDimensionalModelWithDurationAndPitch,
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32 ThreeDimensionalModel,
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33 WaveFileModel
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34 };
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35
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36 enum TimingType {
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37 ExplicitTiming,
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38 ImplicitTiming
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39 };
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40
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41 enum TimeUnits {
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42 TimeSeconds,
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43 TimeMilliseconds,
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44 TimeAudioFrames,
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45 TimeWindows,
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46 };
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47
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48 enum ColumnPurpose {
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49 ColumnUnknown,
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50 ColumnStartTime,
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51 ColumnEndTime,
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52 ColumnDuration,
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53 ColumnValue,
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54 ColumnPitch,
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55 ColumnLabel
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56 };
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57
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58 enum ColumnQuality {
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59 ColumnNumeric = 1,
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60 ColumnIntegral = 2,
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61 ColumnIncreasing = 4,
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62 ColumnLarge = 8,
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63 ColumnNearEmpty = 16,
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64 };
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65 typedef unsigned int ColumnQualities;
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66
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67 CSVFormat() : // arbitrary defaults
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68 m_modelType(TwoDimensionalModel),
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69 m_timingType(ExplicitTiming),
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70 m_timeUnits(TimeSeconds),
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71 m_separator(","),
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72 m_sampleRate(44100),
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73 m_windowSize(1024),
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74 m_columnCount(0),
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75 m_variableColumnCount(false),
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76 m_allowQuoting(true),
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77 m_maxExampleCols(0)
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78 { }
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79
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80 CSVFormat(QString path); // guess format
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81
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82 /**
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83 * Guess the format of the given CSV file, setting the fields in
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84 * this object accordingly. If the current separator is the empty
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85 * string, the separator character will also be guessed; otherwise
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86 * the current separator will be used. The other properties of
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87 * this object will be set according to guesses from the file.
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88 */
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89 void guessFormatFor(QString path);
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90
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91 ModelType getModelType() const { return m_modelType; }
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92 TimingType getTimingType() const { return m_timingType; }
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93 TimeUnits getTimeUnits() const { return m_timeUnits; }
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94 sv_samplerate_t getSampleRate() const { return m_sampleRate; }
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95 int getWindowSize() const { return m_windowSize; }
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96 int getColumnCount() const { return m_columnCount; }
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97 bool getAllowQuoting() const { return m_allowQuoting; }
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98 QChar getSeparator() const {
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99 if (m_separator == "") return ' ';
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100 else return m_separator[0];
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101 }
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102
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103 void setModelType(ModelType t) { m_modelType = t; }
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104 void setTimingType(TimingType t) { m_timingType = t; }
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105 void setTimeUnits(TimeUnits t) { m_timeUnits = t; }
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106 void setSeparator(QChar s) { m_separator = s; }
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107 void setSampleRate(sv_samplerate_t r) { m_sampleRate = r; }
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108 void setWindowSize(int s) { m_windowSize = s; }
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109 void setColumnCount(int c) { m_columnCount = c; }
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110 void setAllowQuoting(bool q) { m_allowQuoting = q; }
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111
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112 QList<ColumnPurpose> getColumnPurposes() const { return m_columnPurposes; }
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113 void setColumnPurposes(QList<ColumnPurpose> cl) { m_columnPurposes = cl; }
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114
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115 ColumnPurpose getColumnPurpose(int i);
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116 ColumnPurpose getColumnPurpose(int i) const;
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117 void setColumnPurpose(int i, ColumnPurpose p);
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118
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119 // read-only; only valid if format has been guessed:
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120 const QList<ColumnQualities> &getColumnQualities() const {
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121 return m_columnQualities;
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122 }
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123
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124 // read-only; only valid if format has been guessed:
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125 const QList<QStringList> &getExample() const {
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126 return m_example;
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127 }
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128
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129 int getMaxExampleCols() const { return m_maxExampleCols; }
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130
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131 protected:
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132 ModelType m_modelType;
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133 TimingType m_timingType;
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134 TimeUnits m_timeUnits;
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135 QString m_separator;
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136 sv_samplerate_t m_sampleRate;
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137 int m_windowSize;
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138
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139 int m_columnCount;
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140 bool m_variableColumnCount;
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141
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142 QList<ColumnQualities> m_columnQualities;
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143 QList<ColumnPurpose> m_columnPurposes;
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144
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145 QList<float> m_prevValues;
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146
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147 bool m_allowQuoting;
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148
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149 QList<QStringList> m_example;
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150 int m_maxExampleCols;
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151
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152 void guessSeparator(QString line);
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153 void guessQualities(QString line, int lineno);
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154 void guessPurposes();
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155
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156 void guessFormatFor_Old(QString path);
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157
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158 };
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159
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160 #endif
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