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annotate libgui/src/workspace-view.cc @ 16463:8e2a853cdd7d

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derive workspace_view from octave_dock_widget; style fixes * workspace-view.h, workspace-view.cc (workspace_view): Derive from octave_dock_widget. Delete functions that we now inherit. Style fixes.
author John W. Eaton <jwe@octave.org>
date Sun, 07 Apr 2013 16:08:15 -0400
parents 8c666c7b0e5d
children 0f143f68078d
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1 /*
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2
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3 Copyright (C) 2013 John W. Eaton
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4 Copyright (C) 2011-2012 Jacob Dawid
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #ifdef HAVE_CONFIG_H
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25 #include <config.h>
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26 #endif
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27
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28 #include "workspace-view.h"
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29 #include "resource-manager.h"
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30 #include <QHeaderView>
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31 #include <QHBoxLayout>
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32 #include <QVBoxLayout>
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33 #include <QPushButton>
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34 #include <QMenu>
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35
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36 workspace_view::workspace_view (QWidget *p)
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37 : octave_dock_widget (p)
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38 {
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39 setObjectName ("WorkspaceView");
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40 setWindowIcon (QIcon(":/actions/icons/logo.png"));
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41 setWindowTitle (tr ("Workspace"));
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42 setStatusTip (tr ("View the variables in the active workspace."));
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43
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44 view = new QTreeView (this);
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45
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46 view->setHeaderHidden (false);
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47 view->setAlternatingRowColors (true);
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48 view->setAnimated (false);
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49 view->setTextElideMode (Qt::ElideRight);
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50 view->setWordWrap (false);
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51 view->setContextMenuPolicy (Qt::CustomContextMenu);
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52
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53 // Set an empty widget, so we can assign a layout to it.
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54 setWidget (new QWidget (this));
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56 // Create a new layout and add widgets to it.
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57 QVBoxLayout *vbox_layout = new QVBoxLayout ();
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58 vbox_layout->addWidget (view);
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59 vbox_layout->setMargin (2);
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61 // Set the empty widget to have our layout.
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62 widget ()->setLayout (vbox_layout);
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63
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64 // Initialize collapse/expand state of the workspace subcategories.
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65
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66 QSettings *settings = resource_manager::get_settings ();
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67
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68 // FIXME -- what should happen if settings is 0?
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69
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70 _explicit_collapse.local
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71 = settings->value ("workspaceview/local_collapsed", false).toBool ();
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72
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73 _explicit_collapse.global
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74 = settings->value ("workspaceview/global_collapsed", false).toBool ();
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75
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76 _explicit_collapse.persistent
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77 = settings->value ("workspaceview/persistent_collapsed", false).toBool ();
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78
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79 // Initialize column order and width of the workspace
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80
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81 view->header ()->restoreState (settings->value ("workspaceview/column_state").toByteArray ());
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82
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83 // Connect signals and slots.
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84 connect (view, SIGNAL (collapsed (QModelIndex)),
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85 this, SLOT (collapse_requested (QModelIndex)));
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86
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87 connect (view, SIGNAL (expanded (QModelIndex)),
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88 this, SLOT (expand_requested (QModelIndex)));
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89
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90 connect (view, SIGNAL (doubleClicked (QModelIndex)),
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91 this, SLOT (item_double_clicked (QModelIndex)));
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92
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93 connect (view, SIGNAL (customContextMenuRequested(const QPoint&)),
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94 this, SLOT(contextmenu_requested (const QPoint&)));
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95
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96 connect (this, SIGNAL (command_requested (const QString&)),
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97 p, SLOT (handle_command_double_clicked(const QString&)));
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98 }
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99
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100 workspace_view::~workspace_view (void)
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101 {
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102 QSettings *settings = resource_manager::get_settings ();
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103
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104 settings->setValue ("workspaceview/local_collapsed",
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105 _explicit_collapse.local);
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106
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107 settings->setValue ("workspaceview/global_collapsed",
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108 _explicit_collapse.global);
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109
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110 settings->setValue ("workspaceview/persistent_collapsed",
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111 _explicit_collapse.persistent);
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112
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113 settings->setValue("workspaceview/column_state",
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114 view->header ()->saveState ());
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115
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116 settings->sync ();
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117 }
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118
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119 void
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120 workspace_view::model_changed ()
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121 {
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122 QAbstractItemModel *m = view->model ();
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123
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124 dynamic_cast<workspace_model *> (m)->update_workspace_callback ();
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125
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126 // This code is very quirky and requires some explanation.
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127 // Usually, we should not deal with collapsing or expanding ourselves,
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128 // because the view itself determines (based on the model) whether it
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129 // is appropriate to collapse or expand items.
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130 //
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131 // Now, the logic requires that we update our model item by item, which
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132 // would make it work correctly, but this is extremely slow and scales
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133 // very bad (O(n^2)). That's why we throw away our model and rebuild it
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134 // completely from scratch (O(n)), which is why the view renders all
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diff changeset
135 // displayed data as invalid.
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diff changeset
136 //
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diff changeset
137 // In order to make collapsing/expanding work again, we need to set
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
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diff changeset
138 // flags ourselves here.
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139
16445
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diff changeset
140 QModelIndex local_model_index = m->index (0, 0);
3f8d3fc907af store workspace model in main_window, not in workspace view
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141 QModelIndex global_model_index = m->index (1, 0);
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diff changeset
142 QModelIndex persistent_model_index = m->index (2, 0);
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diff changeset
143
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diff changeset
144 if (_explicit_collapse.local)
16445
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diff changeset
145 view->collapse (local_model_index);
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diff changeset
146 else
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diff changeset
147 view->expand (local_model_index);
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148
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diff changeset
149 if (_explicit_collapse.global)
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150 view->collapse (global_model_index);
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151 else
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152 view->expand (global_model_index);
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153
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154 if (_explicit_collapse.persistent)
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155 view->collapse (persistent_model_index);
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156 else
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diff changeset
157 view->expand (persistent_model_index);
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158 }
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159
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160 void
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diff changeset
161 workspace_view::collapse_requested (QModelIndex index)
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162 {
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163 // This code is very quirky and requires some explanation.
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164 // Usually, we should not deal with collapsing or expanding ourselves,
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165 // because the view itself determines (based on the model) whether it
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166 // is appropriate to collapse or expand items.
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167 //
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168 // Now, the logic requires that we update our model item by item, which
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
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diff changeset
169 // would make it work correctly, but this is extremely slow and scales
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170 // very bad (O(n^2)). That's why we throw away our model and rebuild it
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171 // completely from scratch (O(n)), which is why the view renders all
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172 // displayed data as invalid.
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173 //
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174 // In order to make collapsing/expanding work again, we need to set
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
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175 // flags ourselves here.
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176 QAbstractItemModel *m = view->model ();
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diff changeset
177
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178 QMap<int, QVariant> item_data = m->itemData (index);
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179
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180 if (item_data[0] == "Local")
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181 _explicit_collapse.local = true;
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182
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183 if (item_data[0] == "Global")
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184 _explicit_collapse.global = true;
16463
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diff changeset
185
14761
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186 if (item_data[0] == "Persistent")
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187 _explicit_collapse.persistent = true;
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diff changeset
188 }
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diff changeset
189
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
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190 void
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
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diff changeset
191 workspace_view::expand_requested (QModelIndex index)
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diff changeset
192 {
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193 // This code is very quirky and requires some explanation.
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diff changeset
194 // Usually, we should not deal with collapsing or expanding ourselves,
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
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diff changeset
195 // because the view itself determines (based on the model) whether it
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
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diff changeset
196 // is appropriate to collapse or expand items.
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
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diff changeset
197 //
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
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diff changeset
198 // Now, the logic requires that we update our model item by item, which
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
Jacob Dawid <jacob.dawid@googlemail.com>
parents: 14720
diff changeset
199 // would make it work correctly, but this is extremely slow and scales
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
Jacob Dawid <jacob.dawid@googlemail.com>
parents: 14720
diff changeset
200 // very bad (O(n^2)). That's why we throw away our model and rebuild it
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
Jacob Dawid <jacob.dawid@googlemail.com>
parents: 14720
diff changeset
201 // completely from scratch (O(n)), which is why the view renders all
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
Jacob Dawid <jacob.dawid@googlemail.com>
parents: 14720
diff changeset
202 // displayed data as invalid.
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
Jacob Dawid <jacob.dawid@googlemail.com>
parents: 14720
diff changeset
203 //
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
Jacob Dawid <jacob.dawid@googlemail.com>
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diff changeset
204 // In order to make collapsing/expanding work again, we need to do set
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
Jacob Dawid <jacob.dawid@googlemail.com>
parents: 14720
diff changeset
205 // flags ourselves here.
16445
3f8d3fc907af store workspace model in main_window, not in workspace view
John W. Eaton <jwe@octave.org>
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diff changeset
206 QAbstractItemModel *m = view->model ();
3f8d3fc907af store workspace model in main_window, not in workspace view
John W. Eaton <jwe@octave.org>
parents: 16444
diff changeset
207
3f8d3fc907af store workspace model in main_window, not in workspace view
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diff changeset
208 QMap<int, QVariant> item_data = m->itemData (index);
14761
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diff changeset
209
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
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diff changeset
210 if (item_data[0] == "Local")
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
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diff changeset
211 _explicit_collapse.local = false;
16463
8e2a853cdd7d derive workspace_view from octave_dock_widget; style fixes
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diff changeset
212
14761
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diff changeset
213 if (item_data[0] == "Global")
8c4d5029d933 Collapsing/Expanding items now works with a workaround.
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diff changeset
214 _explicit_collapse.global = false;
16463
8e2a853cdd7d derive workspace_view from octave_dock_widget; style fixes
John W. Eaton <jwe@octave.org>
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diff changeset
215
14761
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diff changeset
216 if (item_data[0] == "Persistent")
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diff changeset
217 _explicit_collapse.persistent = false;
13577
e440b3f32f02 Fixed bug with closing subwindows.
Jacob Dawid <jacob.dawid@googlemail.com>
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diff changeset
218 }
e440b3f32f02 Fixed bug with closing subwindows.
Jacob Dawid <jacob.dawid@googlemail.com>
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diff changeset
219
e440b3f32f02 Fixed bug with closing subwindows.
Jacob Dawid <jacob.dawid@googlemail.com>
parents: 13541
diff changeset
220 void
15389
f918db8102d5 eliminate use of Q_UNUSED macro
John W. Eaton <jwe@octave.org>
parents: 15368
diff changeset
221 workspace_view::item_double_clicked (QModelIndex)
14874
5d74d8b982a5 Forgot to have a fallback lexer when the file suffix is unknown. Removed unused variable and added comments.
Jacob Dawid <jacob.dawid@gmail.com>
parents: 14783
diff changeset
222 {
16463
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diff changeset
223 // TODO: Implement opening a dialog that allows the user to change a
8e2a853cdd7d derive workspace_view from octave_dock_widget; style fixes
John W. Eaton <jwe@octave.org>
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diff changeset
224 // variable in the workspace.
14874
5d74d8b982a5 Forgot to have a fallback lexer when the file suffix is unknown. Removed unused variable and added comments.
Jacob Dawid <jacob.dawid@gmail.com>
parents: 14783
diff changeset
225 }
5d74d8b982a5 Forgot to have a fallback lexer when the file suffix is unknown. Removed unused variable and added comments.
Jacob Dawid <jacob.dawid@gmail.com>
parents: 14783
diff changeset
226
5d74d8b982a5 Forgot to have a fallback lexer when the file suffix is unknown. Removed unused variable and added comments.
Jacob Dawid <jacob.dawid@gmail.com>
parents: 14783
diff changeset
227 void
15368
36ececf69385 avoid some GCC warnings in the libgui code
John W. Eaton <jwe@octave.org>
parents: 15367
diff changeset
228 workspace_view::closeEvent (QCloseEvent *e)
13577
e440b3f32f02 Fixed bug with closing subwindows.
Jacob Dawid <jacob.dawid@googlemail.com>
parents: 13541
diff changeset
229 {
14712
5cb54cca8a06 Completion of code reformatting.
Jacob Dawid <jacob.dawid@googlemail.com>
parents: 14709
diff changeset
230 emit active_changed (false);
15368
36ececf69385 avoid some GCC warnings in the libgui code
John W. Eaton <jwe@octave.org>
parents: 15367
diff changeset
231 QDockWidget::closeEvent (e);
13577
e440b3f32f02 Fixed bug with closing subwindows.
Jacob Dawid <jacob.dawid@googlemail.com>
parents: 13541
diff changeset
232 }
15552
bbbb89cc338f make a floating widget behave like a normal window (bug #37190)
Torsten <ttl@justmail.de>
parents: 15460
diff changeset
233
16462
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
234 void
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
235 workspace_view::contextmenu_requested (const QPoint& pos)
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
236 {
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
237 QMenu menu (this);
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
238
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
239 QModelIndex index = view->indexAt (pos);
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
240 QAbstractItemModel *m = view->model ();
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
241
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
242 // if it isnt Local, Glocal etc, allow the ctx menu
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
243 if (index.parent() != QModelIndex())
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
244 {
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
245 QMap<int, QVariant> item_data = m->itemData (index);
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
246
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
247 QString var_name = item_data[0].toString ();
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
248
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
249 menu.addAction ("disp(" + var_name + ")", this,
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
250 SLOT (handle_contextmenu_disp ()));
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
251
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
252 menu.addAction ("plot(" + var_name + ")", this,
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
253 SLOT (handle_contextmenu_plot ()));
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
254
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
255 menu.addAction ("stem(" + var_name + ")", this,
8c666c7b0e5d Added context menu to workspace variable display
John Donoghue <john.donoghue@ieee.org>
parents: 16459
diff changeset
256 SLOT (handle_contextmenu_stem ()));
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257
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258 menu.exec (view->mapToGlobal (pos));
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259 }
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260 }
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261
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262 void
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263 workspace_view::handle_contextmenu_disp (void)
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264 {
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265 relay_contextmenu_command ("disp");
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266 }
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267
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268 void
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269 workspace_view::handle_contextmenu_plot (void)
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270 {
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271 relay_contextmenu_command ("figure;\nplot");
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272 }
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273
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274 void
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275 workspace_view::handle_contextmenu_stem (void)
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276 {
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277 relay_contextmenu_command ("figure;\nstem");
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278 }
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279
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280 void
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281 workspace_view::relay_contextmenu_command (const QString& cmdname)
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282 {
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283 QModelIndex index = view->currentIndex ();
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284
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285 if (index.parent () != QModelIndex ())
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286 {
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287 QAbstractItemModel *m = view->model ();
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288
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289 QMap<int, QVariant> item_data = m->itemData (index);
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290
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291 QString var_name = item_data[0].toString ();
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292
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293 emit command_requested (cmdname + "(" + var_name + ")\n");
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294 }
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295 }