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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 2007 QMUL.
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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 "AggregateWaveModel.h"
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17
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18 #include <iostream>
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19
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20 #include <QTextStream>
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21
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22 PowerOfSqrtTwoZoomConstraint
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23 AggregateWaveModel::m_zoomConstraint;
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24
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25 AggregateWaveModel::AggregateWaveModel(ChannelSpecList channelSpecs) :
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26 m_components(channelSpecs)
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27 {
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28 for (ChannelSpecList::const_iterator i = channelSpecs.begin();
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29 i != channelSpecs.end(); ++i) {
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30 if (i->model->getSampleRate() !=
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31 channelSpecs.begin()->model->getSampleRate()) {
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32 std::cerr << "AggregateWaveModel::AggregateWaveModel: WARNING: Component models do not all have the same sample rate" << std::endl;
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33 break;
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34 }
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35 }
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36 }
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37
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38 AggregateWaveModel::~AggregateWaveModel()
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39 {
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40 }
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41
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42 bool
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43 AggregateWaveModel::isOK() const
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44 {
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45 for (ChannelSpecList::const_iterator i = m_components.begin();
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46 i != m_components.end(); ++i) {
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47 if (!i->model->isOK()) return false;
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48 }
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49 return true;
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50 }
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51
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52 bool
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53 AggregateWaveModel::isReady(int *completion) const
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54 {
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55 if (completion) *completion = 100;
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56 bool ready = true;
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57 for (ChannelSpecList::const_iterator i = m_components.begin();
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58 i != m_components.end(); ++i) {
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59 int completionHere = 100;
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60 if (!i->model->isReady(&completionHere)) ready = false;
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61 if (completion && completionHere < *completion) {
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62 *completion = completionHere;
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63 }
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64 }
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65 return ready;
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66 }
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67
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68 size_t
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69 AggregateWaveModel::getFrameCount() const
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70 {
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71 size_t count = 0;
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72
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73 for (ChannelSpecList::const_iterator i = m_components.begin();
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74 i != m_components.end(); ++i) {
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75 size_t thisCount = i->model->getEndFrame() - i->model->getStartFrame();
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76 if (thisCount > count) count = thisCount;
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77 }
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78
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79 return count;
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80 }
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81
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82 size_t
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83 AggregateWaveModel::getChannelCount() const
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84 {
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85 return m_components.size();
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86 }
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87
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88 size_t
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89 AggregateWaveModel::getSampleRate() const
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90 {
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91 if (m_components.empty()) return 0;
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92 return m_components.begin()->model->getSampleRate();
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93 }
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94
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95 Model *
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96 AggregateWaveModel::clone() const
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97 {
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98 return new AggregateWaveModel(m_components);
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99 }
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100
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101 size_t
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102 AggregateWaveModel::getData(int channel, size_t start, size_t count,
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103 float *buffer) const
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104 {
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105 int ch0 = channel, ch1 = channel;
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106 bool mixing = false;
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107 if (channel == -1) {
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108 ch0 = 0;
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109 ch1 = getChannelCount()-1;
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110 mixing = true;
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111 }
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112
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113 float *readbuf = buffer;
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114 if (mixing) {
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115 readbuf = new float[count];
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116 for (size_t i = 0; i < count; ++i) {
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117 buffer[i] = 0.f;
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118 }
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119 }
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120
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121 size_t sz = count;
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122
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123 for (int c = ch0; c <= ch1; ++c) {
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124 size_t szHere =
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125 m_components[c].model->getData(m_components[c].channel,
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126 start, count,
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127 readbuf);
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128 if (szHere < sz) sz = szHere;
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129 if (mixing) {
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130 for (size_t i = 0; i < count; ++i) {
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131 buffer[i] += readbuf[i];
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132 }
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133 }
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134 }
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135
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136 if (mixing) delete[] readbuf;
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137 return sz;
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138 }
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139
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140 size_t
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141 AggregateWaveModel::getData(int channel, size_t start, size_t count,
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142 double *buffer) const
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143 {
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144 int ch0 = channel, ch1 = channel;
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145 bool mixing = false;
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146 if (channel == -1) {
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147 ch0 = 0;
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148 ch1 = getChannelCount()-1;
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149 mixing = true;
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150 }
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151
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152 double *readbuf = buffer;
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153 if (mixing) {
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154 readbuf = new double[count];
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155 for (size_t i = 0; i < count; ++i) {
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156 buffer[i] = 0.0;
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157 }
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158 }
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159
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160 size_t sz = count;
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161
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162 for (int c = ch0; c <= ch1; ++c) {
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163 size_t szHere =
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164 m_components[c].model->getData(m_components[c].channel,
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165 start, count,
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166 readbuf);
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167 if (szHere < sz) sz = szHere;
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168 if (mixing) {
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169 for (size_t i = 0; i < count; ++i) {
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170 buffer[i] += readbuf[i];
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171 }
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172 }
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173 }
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174
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175 if (mixing) delete[] readbuf;
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176 return sz;
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177 }
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178
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179 void
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180 AggregateWaveModel::getSummaries(size_t channel, size_t start, size_t count,
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181 RangeBlock &ranges, size_t &blockSize) const
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182 {
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183 //!!! complete
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184 }
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185
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186 AggregateWaveModel::Range
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187 AggregateWaveModel::getSummary(size_t channel, size_t start, size_t count) const
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188 {
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189 //!!! complete
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190 return Range();
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191 }
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192
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193 size_t
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194 AggregateWaveModel::getComponentCount() const
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195 {
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196 return m_components.size();
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197 }
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198
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199 AggregateWaveModel::ModelChannelSpec
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200 AggregateWaveModel::getComponent(size_t c) const
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201 {
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202 return m_components[c];
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203 }
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204
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205 void
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206 AggregateWaveModel::componentModelChanged()
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207 {
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208 emit modelChanged();
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209 }
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210
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211 void
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212 AggregateWaveModel::componentModelChanged(size_t start, size_t end)
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213 {
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214 emit modelChanged(start, end);
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215 }
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216
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217 void
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218 AggregateWaveModel::componentModelCompletionChanged()
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219 {
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220 emit completionChanged();
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221 }
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222
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223 void
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224 AggregateWaveModel::toXml(QTextStream &out,
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225 QString indent,
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226 QString extraAttributes) const
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227 {
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228 //!!! complete
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229 }
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230
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