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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 #include "Preferences.h"
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17
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18 #include "Exceptions.h"
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19
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20 #include "TempDirectory.h"
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21
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22 #include <QDir>
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23 #include <QFileInfo>
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24 #include <QMutex>
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25 #include <QSettings>
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26
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27 Preferences *
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28 Preferences::m_instance = 0;
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29
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30 Preferences *
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31 Preferences::getInstance()
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32 {
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33 if (!m_instance) m_instance = new Preferences();
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34 return m_instance;
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35 }
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36
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37 Preferences::Preferences() :
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38 m_smoothSpectrogram(true),
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39 m_tuningFrequency(440),
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40 m_propertyBoxLayout(VerticallyStacked),
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41 m_windowType(HanningWindow),
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42 m_resampleQuality(1)
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43 {
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44 QSettings settings;
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45 settings.beginGroup("Preferences");
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46 m_smoothSpectrogram = settings.value("smooth-spectrogram", true).toBool();
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47 m_tuningFrequency = settings.value("tuning-frequency", 440.f).toDouble();
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48 m_propertyBoxLayout = PropertyBoxLayout
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49 (settings.value("property-box-layout", int(VerticallyStacked)).toInt());
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50 m_windowType = WindowType
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51 (settings.value("window-type", int(HanningWindow)).toInt());
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52 m_resampleQuality = settings.value("resample-quality", 1).toInt();
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53 settings.endGroup();
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54 }
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55
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56 Preferences::~Preferences()
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57 {
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58 }
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59
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60 Preferences::PropertyList
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61 Preferences::getProperties() const
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62 {
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63 PropertyList props;
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64 props.push_back("Smooth Spectrogram");
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65 props.push_back("Tuning Frequency");
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66 props.push_back("Property Box Layout");
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67 props.push_back("Window Type");
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68 props.push_back("Resample Quality");
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69 return props;
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70 }
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71
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72 QString
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73 Preferences::getPropertyLabel(const PropertyName &name) const
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74 {
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75 if (name == "Smooth Spectrogram") {
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76 return tr("Smooth spectrogram display by zero padding FFT");
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77 }
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78 if (name == "Tuning Frequency") {
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79 return tr("Frequency of concert A");
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80 }
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81 if (name == "Property Box Layout") {
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82 return tr("Property box layout");
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83 }
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84 if (name == "Window Type") {
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85 return tr("Spectral analysis window shape");
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86 }
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87 if (name == "Resample Quality") {
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88 return tr("Playback resampler type");
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89 }
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90 return name;
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91 }
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92
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93 Preferences::PropertyType
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94 Preferences::getPropertyType(const PropertyName &name) const
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95 {
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96 if (name == "Smooth Spectrogram") {
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97 return ToggleProperty;
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98 }
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99 if (name == "Tuning Frequency") {
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100 return RangeProperty;
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101 }
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102 if (name == "Property Box Layout") {
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103 return ValueProperty;
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104 }
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105 if (name == "Window Type") {
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106 return ValueProperty;
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107 }
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108 if (name == "Resample Quality") {
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109 return ValueProperty;
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110 }
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111 return InvalidProperty;
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112 }
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113
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114 int
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115 Preferences::getPropertyRangeAndValue(const PropertyName &name,
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116 int *min, int *max) const
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117 {
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118 if (name == "Smooth Spectrogram") {
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119 if (min) *min = 0;
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120 if (max) *max = 1;
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121 return m_smoothSpectrogram ? 1 : 0;
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122 }
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123
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124 //!!! freq mapping
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125
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126 if (name == "Property Box Layout") {
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127 if (min) *min = 0;
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128 if (max) *max = 1;
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129 return m_propertyBoxLayout == Layered ? 1 : 0;
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130 }
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131
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132 if (name == "Window Type") {
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133 if (min) *min = int(RectangularWindow);
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134 if (max) *max = int(BlackmanHarrisWindow);
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135 return int(m_windowType);
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136 }
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137
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138 if (name == "Resample Quality") {
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139 if (min) *min = 0;
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140 if (max) *max = 2;
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141 return m_resampleQuality;
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142 }
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143
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144 return 0;
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145 }
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146
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147 QString
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148 Preferences::getPropertyValueLabel(const PropertyName &name,
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149 int value) const
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150 {
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151 if (name == "Property Box Layout") {
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152 if (value == 0) return tr("Show boxes for all panes");
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153 else return tr("Show box for current pane only");
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154 }
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155 if (name == "Window Type") {
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156 switch (WindowType(value)) {
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157 case RectangularWindow: return tr("Rectangular");
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158 case BartlettWindow: return tr("Triangular");
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159 case HammingWindow: return tr("Hamming");
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160 case HanningWindow: return tr("Hanning");
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161 case BlackmanWindow: return tr("Blackman");
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162 case GaussianWindow: return tr("Gaussian");
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163 case ParzenWindow: return tr("Parzen");
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164 case NuttallWindow: return tr("Nuttall");
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165 case BlackmanHarrisWindow: return tr("Blackman-Harris");
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166 }
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167 }
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168 if (name == "Resample Quality") {
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169 switch (value) {
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170 case 0: return tr("Fastest");
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171 case 1: return tr("Standard");
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172 case 2: return tr("Highest quality");
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173 }
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174 }
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175 return "";
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176 }
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177
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178 QString
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179 Preferences::getPropertyContainerName() const
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180 {
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181 return tr("Preferences");
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182 }
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183
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184 QString
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185 Preferences::getPropertyContainerIconName() const
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186 {
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187 return "preferences";
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188 }
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189
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190 void
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191 Preferences::setProperty(const PropertyName &name, int value)
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192 {
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193 if (name == "Smooth Spectrogram") {
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194 setSmoothSpectrogram(value > 0.1);
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195 } else if (name == "Tuning Frequency") {
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196 //!!!
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197 } else if (name == "Property Box Layout") {
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198 setPropertyBoxLayout(value == 0 ? VerticallyStacked : Layered);
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199 } else if (name == "Window Type") {
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200 setWindowType(WindowType(value));
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201 } else if (name == "Resample Quality") {
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202 setResampleQuality(value);
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203 }
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204 }
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205
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206 void
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207 Preferences::setSmoothSpectrogram(bool smooth)
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208 {
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209 if (m_smoothSpectrogram != smooth) {
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210 m_smoothSpectrogram = smooth;
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211 QSettings settings;
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212 settings.beginGroup("Preferences");
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213 settings.setValue("smooth-spectrogram", smooth);
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214 settings.endGroup();
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215 emit propertyChanged("Smooth Spectrogram");
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216 }
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217 }
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218
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219 void
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220 Preferences::setTuningFrequency(float freq)
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221 {
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222 if (m_tuningFrequency != freq) {
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223 m_tuningFrequency = freq;
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224 QSettings settings;
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225 settings.beginGroup("Preferences");
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226 settings.setValue("tuning-frequency", freq);
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227 settings.endGroup();
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228 emit propertyChanged("Tuning Frequency");
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229 }
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230 }
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231
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232 void
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233 Preferences::setPropertyBoxLayout(PropertyBoxLayout layout)
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234 {
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235 if (m_propertyBoxLayout != layout) {
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236 m_propertyBoxLayout = layout;
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237 QSettings settings;
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238 settings.beginGroup("Preferences");
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239 settings.setValue("property-box-layout", int(layout));
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240 settings.endGroup();
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241 emit propertyChanged("Property Box Layout");
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242 }
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243 }
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244
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245 void
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246 Preferences::setWindowType(WindowType type)
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247 {
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248 if (m_windowType != type) {
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249 m_windowType = type;
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250 QSettings settings;
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251 settings.beginGroup("Preferences");
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252 settings.setValue("window-type", int(type));
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253 settings.endGroup();
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254 emit propertyChanged("Window Type");
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255 }
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256 }
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257
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258 void
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259 Preferences::setResampleQuality(int q)
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260 {
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261 if (m_resampleQuality != q) {
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262 m_resampleQuality = q;
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263 QSettings settings;
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264 settings.beginGroup("Preferences");
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265 settings.setValue("resample-quality", q);
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266 settings.endGroup();
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267 emit propertyChanged("Resample Quality");
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268 }
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269 }
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