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annotate libgui/src/workspace-view.cc @ 15204:359098ad343e

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update copyright notices in libgui directory * documentation-dockwidget.cc, documentation-dockwidget.h, files-dockwidget.cc, files-dockwidget.h, history-dockwidget.cc, history-dockwidget.h, m-editor/file-editor-interface.h, m-editor/file-editor-tab.cc, m-editor/file-editor-tab.h, m-editor/file-editor.cc, m-editor/file-editor.h, m-editor/lexer-octave-gui.cc, m-editor/lexer-octave-gui.h, main-window.cc, main-window.h, octave-adapter/octave-event-listener.h, octave-adapter/octave-event-observer.h, octave-adapter/octave-event.cc, octave-adapter/octave-event.h, octave-adapter/octave-link.cc, octave-adapter/octave-link.h, octave-adapter/octave-main-thread.cc, octave-adapter/octave-main-thread.h, octave-gui.cc, octave-qt-event-listener.cc, octave-qt-event-listener.h, resource-manager.cc, resource-manager.h, settings-dialog.cc, settings-dialog.h, symbol-information.cc, symbol-information.h, terminal-dockwidget.cc, terminal-dockwidget.h, welcome-wizard.cc, welcome-wizard.h, workspace-model.cc, workspace-model.h, workspace-view.cc, workspace-view.h: Use copyright notice format that is consistent with other files in Octave.
author John W. Eaton <jwe@octave.org>
date Mon, 20 Aug 2012 14:02:08 -0400
parents 017f0b2e6933
children ae9079bbc627
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1 /*
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2
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3 Copyright (C) 2011-2012 Jacob Dawid
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #include "workspace-view.h"
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24 #include "resource-manager.h"
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25 #include <QHBoxLayout>
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26 #include <QVBoxLayout>
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27 #include <QPushButton>
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28
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29 workspace_view::workspace_view (QWidget * parent) : QDockWidget
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30 (parent)
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31 {
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32 setObjectName ("WorkspaceView");
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33 setWindowTitle (tr ("Workspace"));
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34
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35 // Create a new workspace model.
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36 _workspace_model = new workspace_model ();
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37
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38 _workspace_tree_view = new QTreeView (this); // Create a new tree view.
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39 _workspace_tree_view->setHeaderHidden (false); // Do not show header columns.
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40 _workspace_tree_view->setAlternatingRowColors (true); // Activate alternating row colors.
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41 _workspace_tree_view->setAnimated (false); // Deactivate animations because of strange glitches.
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42 _workspace_tree_view->setTextElideMode (Qt::ElideRight);// Elide text to the right side of the cells.
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43 _workspace_tree_view->setWordWrap (false); // No wordwrapping in cells.
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44 _workspace_tree_view->setModel (_workspace_model); // Assign model.
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45
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46 // Set an empty widget, so we can assign a layout to it.
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47 setWidget (new QWidget (this));
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48
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49 // Create a new layout and add widgets to it.
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50 QVBoxLayout *layout = new QVBoxLayout ();
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51 layout->addWidget (_workspace_tree_view);
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52 layout->setMargin (2);
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53
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54 // Set the empty widget to have our layout.
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55 widget ()->setLayout (layout);
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56
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57 // Initialize collapse/expand state of the workspace subcategories.
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58
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59 QSettings *settings = resource_manager::get_settings ();
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60
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61 // FIXME -- what should happen if settings is 0?
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62
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63 _explicit_collapse.local = settings->value ("workspaceview/local_collapsed", false).toBool ();
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64 _explicit_collapse.global = settings->value ("workspaceview/global_collapsed", false).toBool ();;
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65 _explicit_collapse.persistent = settings->value ("workspaceview/persistent_collapsed", false).toBool ();;
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66 _explicit_collapse.hidden = settings->value ("workspaceview/hidden_collapsed", false).toBool ();;
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67
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68 // Connect signals and slots.
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69 connect (this, SIGNAL (visibilityChanged (bool)),
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70 this, SLOT(handle_visibility_changed (bool)));
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71
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72 connect (_workspace_model, SIGNAL (model_changed ()),
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73 this, SLOT (model_changed ()));
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74
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75 connect (_workspace_tree_view, SIGNAL (collapsed (QModelIndex)),
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76 this, SLOT (collapse_requested (QModelIndex)));
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77 connect (_workspace_tree_view, SIGNAL (expanded (QModelIndex)),
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78 this, SLOT (expand_requested (QModelIndex)));
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79
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80 connect (_workspace_tree_view, SIGNAL (doubleClicked (QModelIndex)),
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81 this, SLOT (item_double_clicked (QModelIndex)));
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82
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83 }
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84
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85 workspace_view::~workspace_view ()
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86 {
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87 QSettings *settings = resource_manager::get_settings ();
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88
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89 // FIXME -- what should happen if settings is 0?
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90
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91 settings->setValue("workspaceview/local_collapsed", _explicit_collapse.local);
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92 settings->setValue("workspaceview/global_collapsed", _explicit_collapse.global);
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93 settings->setValue("workspaceview/persistent_collapsed", _explicit_collapse.persistent);
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94 settings->setValue("workspaceview/hidden_collapsed", _explicit_collapse.hidden);
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95 }
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96
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97 void
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98 workspace_view::handle_visibility_changed (bool visible)
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99 {
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100 if (visible)
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101 emit active_changed (true);
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102 }
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103
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104 void
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105 workspace_view::model_changed ()
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106 {
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107 // This code is very quirky and requires some explanation.
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108 // Usually, we should not deal with collapsing or expanding ourselves,
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109 // because the view itself determines (based on the model) whether it
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110 // is appropriate to collapse or expand items.
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111 //
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112 // Now, the logic requires that we update our model item by item, which
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113 // would make it work correctly, but this is extremely slow and scales
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114 // very bad (O(n^2)). That's why we throw away our model and rebuild it
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115 // completely from scratch (O(n)), which is why the view renders all
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116 // displayed data as invalid.
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117 //
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118 // In order to make collapsing/expanding work again, we need to set
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119 // flags ourselves here.
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120
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121 QModelIndex local_model_index = _workspace_model->index (0, 0);
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122 QModelIndex global_model_index = _workspace_model->index (1, 0);
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123 QModelIndex persistent_model_index = _workspace_model->index (2, 0);
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124 QModelIndex hidden_model_index = _workspace_model->index (3, 0);
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125
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126 if (_explicit_collapse.local) {
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127 _workspace_tree_view->collapse (local_model_index);
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128 } else {
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129 _workspace_tree_view->expand (local_model_index);
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130 }
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131
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132 if (_explicit_collapse.global) {
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133 _workspace_tree_view->collapse (global_model_index);
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134 } else {
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135 _workspace_tree_view->expand (global_model_index);
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136 }
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137
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138 if (_explicit_collapse.persistent) {
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139 _workspace_tree_view->collapse (persistent_model_index);
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140 } else {
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141 _workspace_tree_view->expand (persistent_model_index);
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142 }
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143
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144 if (_explicit_collapse.hidden) {
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145 _workspace_tree_view->collapse (hidden_model_index);
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146 } else {
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147 _workspace_tree_view->expand (hidden_model_index);
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148 }
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149 }
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150
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151 void
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152 workspace_view::collapse_requested (QModelIndex index)
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153 {
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154 // This code is very quirky and requires some explanation.
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155 // Usually, we should not deal with collapsing or expanding ourselves,
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156 // because the view itself determines (based on the model) whether it
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157 // is appropriate to collapse or expand items.
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158 //
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159 // Now, the logic requires that we update our model item by item, which
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160 // would make it work correctly, but this is extremely slow and scales
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161 // very bad (O(n^2)). That's why we throw away our model and rebuild it
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162 // completely from scratch (O(n)), which is why the view renders all
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163 // displayed data as invalid.
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164 //
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165 // In order to make collapsing/expanding work again, we need to set
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166 // flags ourselves here.
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167 QMap<int, QVariant> item_data
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168 = _workspace_model->itemData (index);
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169
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170 if (item_data[0] == "Local")
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171 _explicit_collapse.local = true;
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172 if (item_data[0] == "Global")
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173 _explicit_collapse.global = true;
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174 if (item_data[0] == "Persistent")
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175 _explicit_collapse.persistent = true;
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176 if (item_data[0] == "Hidden")
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177 _explicit_collapse.hidden = true;
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178 }
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179
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180 void
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181 workspace_view::expand_requested (QModelIndex index)
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182 {
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183 // This code is very quirky and requires some explanation.
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184 // Usually, we should not deal with collapsing or expanding ourselves,
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185 // because the view itself determines (based on the model) whether it
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186 // is appropriate to collapse or expand items.
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187 //
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188 // Now, the logic requires that we update our model item by item, which
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189 // would make it work correctly, but this is extremely slow and scales
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190 // very bad (O(n^2)). That's why we throw away our model and rebuild it
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191 // completely from scratch (O(n)), which is why the view renders all
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192 // displayed data as invalid.
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193 //
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194 // In order to make collapsing/expanding work again, we need to do set
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195 // flags ourselves here.
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196 QMap<int, QVariant> item_data
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197 = _workspace_model->itemData (index);
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198
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199 if (item_data[0] == "Local")
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200 _explicit_collapse.local = false;
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201 if (item_data[0] == "Global")
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202 _explicit_collapse.global = false;
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203 if (item_data[0] == "Persistent")
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204 _explicit_collapse.persistent = false;
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205 if (item_data[0] == "Hidden")
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206 _explicit_collapse.hidden = false;
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207 }
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208
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209 void
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210 workspace_view::item_double_clicked (QModelIndex index)
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211 {
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212 Q_UNUSED (index);
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213 // TODO: Implement opening a dialog that allows the user to change a variable in the workspace.
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214 }
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215
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216 void
14709
f50591409306 Started to rename class names and methods from camel case to underscore-
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217 workspace_view::closeEvent (QCloseEvent *event)
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218 {
14712
5cb54cca8a06 Completion of code reformatting.
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219 emit active_changed (false);
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220 QDockWidget::closeEvent (event);
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221 }