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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 2008 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 "ModelDataTableModel.h"
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17
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18 #include "TabularModel.h"
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19 #include "Model.h"
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20
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21 #include <map>
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22 #include <algorithm>
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23 #include <iostream>
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24
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25 ModelDataTableModel::ModelDataTableModel(ModelId m) :
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26 m_model(m),
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27 m_sortColumn(0),
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28 m_sortOrdering(Qt::AscendingOrder),
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29 m_currentRow(0)
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30 {
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31 auto model = ModelById::get(m);
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32 if (model) {
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33 connect(model.get(), SIGNAL(modelChanged()), this, SLOT(modelChanged()));
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34 connect(model.get(), SIGNAL(modelChangedWithin(sv_frame_t, sv_frame_t)),
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35 this, SLOT(modelChangedWithin(sv_frame_t, sv_frame_t)));
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36 }
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37 }
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38
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39 ModelDataTableModel::~ModelDataTableModel()
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40 {
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41 }
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42
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43 QVariant
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44 ModelDataTableModel::data(const QModelIndex &index, int role) const
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45 {
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46 auto model = getTabularModel();
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47 if (!model) return QVariant();
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48 if (role != Qt::EditRole && role != Qt::DisplayRole) return QVariant();
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49 if (!index.isValid()) return QVariant();
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50 QVariant d = model->getData(getUnsorted(index.row()), index.column(), role);
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51 return d;
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52 }
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53
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54 bool
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55 ModelDataTableModel::setData(const QModelIndex &index, const QVariant &value, int role)
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56 {
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57 auto model = getTabularModel();
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58 if (!model) return false;
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59 if (!index.isValid()) return false;
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60 Command *command = model->getSetDataCommand(getUnsorted(index.row()),
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61 index.column(),
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62 value, role);
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63 if (command) {
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64 emit addCommand(command);
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65 return true;
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66 } else {
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67 return false;
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68 }
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69 }
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70
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71 bool
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72 ModelDataTableModel::insertRow(int row, const QModelIndex &parent)
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73 {
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74 auto model = getTabularModel();
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75 if (!model) return false;
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76 if (parent.isValid()) return false;
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77
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78 Command *command = model->getInsertRowCommand(getUnsorted(row));
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79
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80 if (command) {
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81 emit addCommand(command);
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82 }
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83
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84 return (command ? true : false);
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85 }
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86
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87 bool
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88 ModelDataTableModel::removeRow(int row, const QModelIndex &parent)
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89 {
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90 auto model = getTabularModel();
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91 if (!model) return false;
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92 if (parent.isValid()) return false;
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93
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94 Command *command = model->getRemoveRowCommand(getUnsorted(row));
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95
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96 if (command) {
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97 emit addCommand(command);
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98 }
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99
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100 return (command ? true : false);
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101 }
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102
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103 Qt::ItemFlags
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104 ModelDataTableModel::flags(const QModelIndex &) const
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105 {
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106 Qt::ItemFlags flags = Qt::ItemIsEnabled | Qt::ItemIsEditable |
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107 Qt::ItemIsDragEnabled | Qt::ItemIsDropEnabled | Qt::ItemIsSelectable;
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108 return flags;
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109 }
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110
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111 QVariant
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112 ModelDataTableModel::headerData(int section, Qt::Orientation orientation, int role) const
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113 {
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114 auto model = getTabularModel();
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115 if (!model) return QVariant();
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116
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117 if (orientation == Qt::Vertical && role == Qt::DisplayRole) {
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118 return section + 1;
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119 }
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120 if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
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121 return model->getHeading(section);
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122 }
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123 return QVariant();
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124 }
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125
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126 QModelIndex
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127 ModelDataTableModel::index(int row, int column, const QModelIndex &) const
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128 {
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129 return createIndex(row, column, (void *)nullptr);
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130 }
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131
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132 QModelIndex
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133 ModelDataTableModel::parent(const QModelIndex &) const
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134 {
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135 return QModelIndex();
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136 }
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137
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138 int
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139 ModelDataTableModel::rowCount(const QModelIndex &parent) const
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140 {
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141 auto model = getTabularModel();
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142 if (!model) return 0;
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143 if (parent.isValid()) return 0;
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144 int count = model->getRowCount();
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145 return count;
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146 }
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147
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148 int
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149 ModelDataTableModel::columnCount(const QModelIndex &parent) const
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150 {
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151 auto model = getTabularModel();
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152 if (!model) return 0;
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153 if (parent.isValid()) return 0;
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154 return model->getColumnCount();
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155 }
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156
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157 QModelIndex
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158 ModelDataTableModel::getModelIndexForFrame(sv_frame_t frame) const
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159 {
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160 auto model = getTabularModel();
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161 if (!model) return createIndex(0, 0);
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162 int row = model->getRowForFrame(frame);
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163 return createIndex(getSorted(row), 0, (void *)nullptr);
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164 }
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165
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166 sv_frame_t
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167 ModelDataTableModel::getFrameForModelIndex(const QModelIndex &index) const
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168 {
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169 auto model = getTabularModel();
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170 if (!model) return 0;
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171 return model->getFrameForRow(getUnsorted(index.row()));
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172 }
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173
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174 QModelIndex
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175 ModelDataTableModel::findText(QString text) const
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176 {
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177 auto model = getTabularModel();
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178 if (!model) return QModelIndex();
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179 if (text == "") return QModelIndex();
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180 int rows = rowCount();
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181 int cols = columnCount();
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182 int current = getCurrentRow();
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183 for (int row = 1; row <= rows; ++row) {
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184 int wrapped = (row + current) % rows;
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185 for (int col = 0; col < cols; ++col) {
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186 if (model->getSortType(col) != TabularModel::SortAlphabetical) {
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187 continue;
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188 }
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189 QString cell = model->getData(getUnsorted(wrapped), col,
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190 Qt::DisplayRole).toString();
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191 if (cell.contains(text, Qt::CaseInsensitive)) {
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192 return createIndex(wrapped, col);
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193 }
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194 }
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195 }
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196 return QModelIndex();
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197 }
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198
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199 void
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200 ModelDataTableModel::sort(int column, Qt::SortOrder sortOrder)
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201 {
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202 // SVDEBUG << "ModelDataTableModel::sort(" << column << ", " << sortOrder
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203 // << ")" << endl;
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204 int prevCurrent = getCurrentRow();
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205 if (m_sortColumn != column) {
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206 clearSort();
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207 }
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208 m_sortColumn = column;
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209 m_sortOrdering = sortOrder;
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210 int current = getCurrentRow();
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211 if (current != prevCurrent) {
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212 // cerr << "Current row changed from " << prevCurrent << " to " << current << " for underlying row " << m_currentRow << endl;
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213 emit currentChanged(createIndex(current, 0, (void *)nullptr));
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214 }
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215 emit layoutChanged();
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216 }
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217
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218 void
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219 ModelDataTableModel::modelChanged()
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220 {
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221 SVDEBUG << "ModelDataTableModel::modelChanged" << endl;
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222 QModelIndex ix0;
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223 QModelIndex ix1;
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224 if (rowCount() > 0) {
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225 ix0 = createIndex(0, 0);
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226 int lastCol = columnCount() - 1;
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227 if (lastCol < 0) lastCol = 0;
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228 ix1 = createIndex(rowCount(), lastCol);
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229 }
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230 SVDEBUG << "emitting dataChanged from row " << ix0.row() << " to " << ix1.row() << endl;
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231 emit dataChanged(ix0, ix1);
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232 clearSort();
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233 emit layoutChanged();
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234 }
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235
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236 void
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237 ModelDataTableModel::modelChangedWithin(sv_frame_t f0, sv_frame_t f1)
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238 {
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239 SVDEBUG << "ModelDataTableModel::modelChangedWithin(" << f0 << "," << f1 << ")" << endl;
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240 QModelIndex ix0 = getModelIndexForFrame(f0);
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241 QModelIndex ix1 = getModelIndexForFrame(f1);
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242 int row0 = ix0.row();
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243 int row1 = ix1.row();
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244 if (row0 > 0) {
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245 ix0 = createIndex(row0 - 1, ix0.column(), (void *)nullptr);
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246 }
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247 if (row1 + 1 < rowCount()) {
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248 ix1 = createIndex(row1 + 1, ix1.column(), (void *)nullptr);
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249 }
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250 SVDEBUG << "emitting dataChanged from row " << ix0.row() << " to " << ix1.row() << endl;
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251 emit dataChanged(ix0, ix1);
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252 clearSort();
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253 emit layoutChanged();
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254 }
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255
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256 int
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257 ModelDataTableModel::getSorted(int row) const
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258 {
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259 auto model = getTabularModel();
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260 if (!model) return row;
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261
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262 if (model->isColumnTimeValue(m_sortColumn)) {
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263 if (m_sortOrdering == Qt::AscendingOrder) {
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264 return row;
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265 } else {
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266 return rowCount() - row - 1;
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267 }
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268 }
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269
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270 if (m_sort.empty()) {
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271 resort();
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272 }
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273 int result = 0;
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274 if (row >= 0 && row < (int)m_sort.size()) {
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275 result = m_sort[row];
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276 }
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277 if (m_sortOrdering == Qt::DescendingOrder) {
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278 result = rowCount() - result - 1;
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279 }
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280
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281 return result;
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282 }
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283
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284 int
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285 ModelDataTableModel::getUnsorted(int row) const
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286 {
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287 auto model = getTabularModel();
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288 if (!model) return row;
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289
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290 if (model->isColumnTimeValue(m_sortColumn)) {
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291 if (m_sortOrdering == Qt::AscendingOrder) {
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292 return row;
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293 } else {
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294 return rowCount() - row - 1;
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295 }
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296 }
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297
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298 if (m_sort.empty()) {
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299 resort();
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300 }
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301
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302 int result = 0;
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303 if (row >= 0 && row < (int)m_sort.size()) {
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304 if (m_sortOrdering == Qt::AscendingOrder) {
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305 result = m_rsort[row];
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306 } else {
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307 result = m_rsort[rowCount() - row - 1];
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308 }
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309 }
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310
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311 return result;
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312 }
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313
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314 void
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315 ModelDataTableModel::resort() const
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316 {
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317 auto model = getTabularModel();
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318 if (!model) return;
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319
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320 bool numeric = (model->getSortType(m_sortColumn) ==
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321 TabularModel::SortNumeric);
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322
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323 // cerr << "resort: numeric == " << numeric << endl;
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324
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325 m_sort.clear();
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326 m_rsort.clear();
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327
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328 if (numeric) resortNumeric();
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329 else resortAlphabetical();
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330
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331 std::map<int, int> tmp;
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332
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333 // rsort maps from sorted row number to original row number
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334
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335 for (int i = 0; i < (int)m_rsort.size(); ++i) {
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336 tmp[m_rsort[i]] = i;
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337 }
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338
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339 // tmp now maps from original row number to sorted row number
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340
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341 for (std::map<int, int>::const_iterator i = tmp.begin(); i != tmp.end(); ++i) {
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342 m_sort.push_back(i->second);
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343 }
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344
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Chris@422
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345 // and sort now maps from original row number to sorted row number
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346 }
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347
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348 void
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349 ModelDataTableModel::resortNumeric() const
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Chris@422
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350 {
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351 auto model = getTabularModel();
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Chris@1748
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352 if (!model) return;
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353
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Chris@422
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354 typedef std::multimap<double, int> MapType;
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355
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356 MapType rowMap;
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357 int rows = model->getRowCount();
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Chris@422
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358
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Chris@422
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359 for (int i = 0; i < rows; ++i) {
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360 QVariant value = model->getData(i, m_sortColumn, TabularModel::SortRole);
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Chris@422
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361 rowMap.insert(MapType::value_type(value.toDouble(), i));
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Chris@422
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362 }
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Chris@422
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363
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Chris@422
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364 for (MapType::iterator i = rowMap.begin(); i != rowMap.end(); ++i) {
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Chris@843
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365 // cerr << "resortNumeric: " << i->second << ": " << i->first << endl;
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Chris@422
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366 m_rsort.push_back(i->second);
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Chris@422
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367 }
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Chris@422
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368
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Chris@422
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369 // rsort now maps from sorted row number to original row number
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Chris@422
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370 }
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Chris@422
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371
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Chris@422
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372 void
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Chris@426
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373 ModelDataTableModel::resortAlphabetical() const
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Chris@422
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374 {
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Chris@1748
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375 auto model = getTabularModel();
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Chris@1748
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376 if (!model) return;
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Chris@454
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377
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Chris@422
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378 typedef std::multimap<QString, int> MapType;
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Chris@422
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379
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Chris@422
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380 MapType rowMap;
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Chris@1748
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381 int rows = model->getRowCount();
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Chris@422
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382
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Chris@422
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383 for (int i = 0; i < rows; ++i) {
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Chris@422
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384 QVariant value =
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Chris@1748
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385 model->getData(i, m_sortColumn, TabularModel::SortRole);
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Chris@422
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386 rowMap.insert(MapType::value_type(value.toString(), i));
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Chris@422
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387 }
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Chris@422
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388
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Chris@422
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389 for (MapType::iterator i = rowMap.begin(); i != rowMap.end(); ++i) {
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Chris@843
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390 // cerr << "resortAlphabetical: " << i->second << ": " << i->first << endl;
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Chris@422
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391 m_rsort.push_back(i->second);
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Chris@422
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392 }
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Chris@422
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393
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Chris@422
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394 // rsort now maps from sorted row number to original row number
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Chris@422
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395 }
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Chris@422
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396
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Chris@428
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397 int
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Chris@618
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398 ModelDataTableModel::getCurrentRow() const
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Chris@428
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399 {
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Chris@428
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400 return getSorted(m_currentRow);
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Chris@428
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401 }
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Chris@428
|
402
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Chris@428
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403 void
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Chris@428
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404 ModelDataTableModel::setCurrentRow(int row)
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Chris@428
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405 {
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Chris@428
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406 m_currentRow = getUnsorted(row);
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Chris@428
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407 }
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Chris@428
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408
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Chris@428
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409 void
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Chris@428
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410 ModelDataTableModel::clearSort()
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Chris@428
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411 {
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Chris@428
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412 // int prevCurrent = getCurrentRow();
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Chris@428
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413 m_sort.clear();
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Chris@428
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414 // int current = getCurrentRow(); //!!! no -- not until the sort criteria have changed
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Chris@428
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415 // if (current != prevCurrent) {
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Chris@843
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416 // cerr << "Current row changed from " << prevCurrent << " to " << current << " for underlying row " << m_currentRow << endl;
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Chris@428
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417 // emit currentRowChanged(createIndex(current, 0, 0));
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Chris@428
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418 // }
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Chris@428
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419 }
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Chris@428
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420
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Chris@428
|
421
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