Mercurial > octave
annotate libgui/src/workspace-view.cc @ 27610:8586eb41abf5
improve memory management in workspace_view class
* workspace-view.cc (workspace_view::m_filter_checkbox,
workspace_view::m_filter, workspace_view::m_filter_widget): Create in
constructor initializer list.
(workspace_view::m_sig_mapper): Delete data member and all uses.
(workspace_view::): Delete data member and all uses.
(workspace_view::header_contextmenu_requested): Create local
QSignalMapper object for the local QMenu object since it only needs to
exist as long as the QMenu object exists.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 01 Nov 2019 12:12:10 -0400 |
parents | 3fcc650de22f |
children | 0495b64288f7 |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 2013-2019 John W. Eaton |
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4 Copyright (C) 2011-2019 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 |
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10 the Free Software Foundation, either version 3 of the License, or |
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11 (at your 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 |
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14 WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 GNU General Public License 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 <https://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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24 #if defined (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 <QApplication> |
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29 #include <QClipboard> |
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30 #include <QCompleter> |
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31 #include <QHBoxLayout> |
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32 #include <QHeaderView> |
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33 #include <QInputDialog> |
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34 #include <QLabel> |
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35 #include <QLineEdit> |
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36 #include <QMenu> |
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37 #include <QMessageBox> |
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38 #include <QPushButton> |
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39 #include <QSignalMapper> |
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41 | |
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42 #include "gui-preferences-ws.h" |
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43 #include "resource-manager.h" |
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44 #include "workspace-view.h" |
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45 |
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46 #include "interpreter-private.h" |
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47 #include "interpreter.h" |
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48 #include "syminfo.h" |
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49 |
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50 namespace octave |
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51 { |
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52 workspace_view::workspace_view (QWidget *p) |
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53 : octave_dock_widget ("WorkspaceView", p), |
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54 m_view (new QTableView (this)), |
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55 m_filter_checkbox (new QCheckBox ()), |
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56 m_filter (new QComboBox (this)), |
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57 m_filter_widget (new QWidget (this)) |
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58 { |
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59 setWindowIcon (QIcon (":/actions/icons/logo.png")); |
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60 set_title (tr ("Workspace")); |
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61 setStatusTip (tr ("View the variables in the active workspace.")); |
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62 |
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63 m_filter->setToolTip (tr ("Enter text to filter the workspace")); |
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64 m_filter->setEditable (true); |
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65 m_filter->setMaxCount (MaxFilterHistory); |
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66 m_filter->setInsertPolicy (QComboBox::NoInsert); |
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67 m_filter->setSizeAdjustPolicy (QComboBox::AdjustToMinimumContentsLengthWithIcon); |
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68 QSizePolicy sizePol (QSizePolicy::Expanding, QSizePolicy::Preferred); |
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69 m_filter->setSizePolicy (sizePol); |
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70 m_filter->completer ()->setCaseSensitivity (Qt::CaseSensitive); |
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71 |
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72 QLabel *filter_label = new QLabel (tr ("Filter")); |
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73 |
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74 m_view->setWordWrap (false); |
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75 m_view->setContextMenuPolicy (Qt::CustomContextMenu); |
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76 m_view->setShowGrid (false); |
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77 (m_view->verticalHeader) ()->hide (); |
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78 m_view->setAlternatingRowColors (true); |
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79 m_view_previous_row_count = 0; |
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80 |
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81 // Set an empty widget, so we can assign a layout to it. |
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82 setWidget (new QWidget (this)); |
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83 |
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84 // Create the layouts |
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85 QHBoxLayout *filter_layout = new QHBoxLayout (); |
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86 |
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87 filter_layout->addWidget (filter_label); |
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88 filter_layout->addWidget (m_filter_checkbox); |
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89 filter_layout->addWidget (m_filter); |
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90 filter_layout->setMargin (0); |
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91 |
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92 m_filter_widget->setLayout (filter_layout); |
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93 |
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94 QVBoxLayout *ws_layout = new QVBoxLayout (); |
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95 ws_layout->addWidget (m_filter_widget); |
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96 ws_layout->addWidget (m_view); |
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97 ws_layout->setSpacing (0); |
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98 |
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99 QSettings *settings = resource_manager::get_settings (); |
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100 |
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101 if (settings) |
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102 { |
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103 m_filter_shown = settings->value ("workspaceview/filter_shown",true).toBool (); |
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104 m_filter_widget->setVisible (m_filter_shown); |
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105 |
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106 ws_layout->setMargin (2); |
13501 | 107 |
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108 // Set the empty widget to have our layout. |
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109 widget ()->setLayout (ws_layout); |
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110 |
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111 // Initialize collapse/expand state of the workspace subcategories. |
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112 |
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113 //enable sorting (setting column and order after model was set) |
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114 m_view->setSortingEnabled (true); |
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115 // Initialize column order and width of the workspace |
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116 m_view->horizontalHeader ()->restoreState |
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117 (settings->value ("workspaceview/column_state").toByteArray ()); |
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118 |
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119 // Set header properties for sorting |
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120 #if defined (HAVE_QHEADERVIEW_SETSECTIONSCLICKABLE) |
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121 m_view->horizontalHeader ()->setSectionsClickable (true); |
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122 #else |
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123 m_view->horizontalHeader ()->setClickable (true); |
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124 #endif |
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125 #if defined (HAVE_QHEADERVIEW_SETSECTIONSMOVABLE) |
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126 m_view->horizontalHeader ()->setSectionsMovable (true); |
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127 #else |
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128 m_view->horizontalHeader ()->setMovable (true); |
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129 #endif |
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130 m_view->horizontalHeader ()->setSortIndicator (settings->value ("workspaceview/sort_by_column",0).toInt (), |
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131 static_cast<Qt::SortOrder> |
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132 (settings->value ("workspaceview/sort_order", Qt::AscendingOrder).toUInt ())); |
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133 m_view->horizontalHeader ()->setSortIndicatorShown (true); |
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134 |
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135 m_view->horizontalHeader ()->setContextMenuPolicy (Qt::CustomContextMenu); |
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136 connect (m_view->horizontalHeader (), |
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137 SIGNAL (customContextMenuRequested (const QPoint &)), |
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138 this, SLOT (header_contextmenu_requested (const QPoint &))); |
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139 |
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140 // Init state of the filter |
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141 m_filter->addItems (settings->value ("workspaceview/mru_list").toStringList ()); |
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142 |
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143 bool filter_state = |
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144 settings->value ("workspaceview/filter_active", false).toBool (); |
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145 m_filter_checkbox->setChecked (filter_state); |
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146 filter_activate (filter_state); |
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147 } |
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148 |
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149 // Connect signals and slots. |
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150 |
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151 connect (m_filter, SIGNAL (editTextChanged (const QString&)), |
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152 this, SLOT (filter_update (const QString&))); |
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153 connect (m_filter_checkbox, SIGNAL (toggled (bool)), |
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154 this, SLOT (filter_activate (bool))); |
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155 connect (m_filter->lineEdit (), SIGNAL (editingFinished ()), |
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156 this, SLOT (update_filter_history ())); |
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157 |
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158 connect (m_view, SIGNAL (customContextMenuRequested (const QPoint&)), |
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159 this, SLOT (contextmenu_requested (const QPoint&))); |
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160 |
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161 connect (m_view, SIGNAL (activated (QModelIndex)), |
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162 this, SLOT (handle_contextmenu_edit (void))); |
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163 |
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164 connect (this, SIGNAL (command_requested (const QString&)), |
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165 p, SLOT (execute_command_in_terminal (const QString&))); |
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166 |
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167 connect (this, |
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168 SIGNAL (edit_variable_signal (const QString&, const octave_value&)), |
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169 p, SLOT (edit_variable (const QString&, const octave_value&))); |
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170 } |
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171 |
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172 void workspace_view::setModel (workspace_model *model) |
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173 { |
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174 m_filter_model.setSourceModel (model); |
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175 m_filter_model.setFilterKeyColumn(0); |
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176 |
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177 m_view->setModel (&m_filter_model); |
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178 |
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179 // set the sorting after a model was set, it would be ignored otherwise |
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180 QSettings *settings = resource_manager::get_settings (); |
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181 m_view->sortByColumn (settings->value ("workspaceview/sort_by_column",0).toInt (), |
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182 static_cast<Qt::SortOrder> (settings->value ("workspaceview/sort_order", Qt::AscendingOrder).toUInt ())); |
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183 |
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184 m_model = model; |
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185 } |
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186 |
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187 void |
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188 workspace_view::notice_settings (const QSettings *settings) |
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189 { |
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190 int i; |
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191 |
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192 m_model->notice_settings (settings); // update colors of model first |
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193 |
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194 for (i = 0; i < m_columns_shown_keys.size (); i++) |
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195 m_view->setColumnHidden (i + 1, ! settings->value (m_columns_shown_keys.at (i),true).toBool ()); |
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196 |
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197 QString tool_tip; |
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198 |
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199 if (settings->value (ws_enable_colors.key, ws_enable_colors.def).toBool () |
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200 && ! settings->value (ws_hide_tool_tips.key, ws_hide_tool_tips.def).toBool ()) |
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201 { |
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202 tool_tip = QString (tr ("View the variables in the active workspace.<br>")); |
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203 tool_tip += QString (tr ("Colors for variable attributes:")); |
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204 int colors = resource_manager::storage_class_chars ().length (); |
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205 for (i = 0; i < colors; i++) |
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206 { |
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207 tool_tip += |
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208 QString (R"(<div style="background-color:%1;color:%2">%3</div>)") |
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209 .arg (m_model->storage_class_color (i).name ()) |
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210 .arg (m_model->storage_class_color (i + colors).name ()) |
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211 .arg (resource_manager::storage_class_names ().at (i)); |
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212 } |
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213 } |
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214 |
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215 setToolTip (tool_tip); |
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216 |
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217 m_columns_shown = QStringList (); |
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218 m_columns_shown.append (tr ("Class")); |
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219 m_columns_shown.append (tr ("Dimension")); |
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220 m_columns_shown.append (tr ("Value")); |
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221 m_columns_shown.append (tr ("Attribute")); |
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222 |
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223 m_columns_shown_keys = QStringList (); |
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224 m_columns_shown_keys.append ("workspaceview/show_class"); |
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225 m_columns_shown_keys.append ("workspaceview/show_dimension"); |
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226 m_columns_shown_keys.append ("workspaceview/show_value"); |
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227 m_columns_shown_keys.append ("workspaceview/show_attribute"); |
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228 } |
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229 |
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230 void |
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231 workspace_view::save_settings (void) |
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232 { |
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233 QSettings *settings = resource_manager::get_settings (); |
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234 |
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235 if (! settings) |
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236 return; |
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237 |
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238 settings->setValue ("workspaceview/column_state", |
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239 m_view->horizontalHeader ()->saveState ()); |
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240 |
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241 int sort_column = m_view->horizontalHeader ()->sortIndicatorSection (); |
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242 Qt::SortOrder sort_order = m_view->horizontalHeader ()->sortIndicatorOrder (); |
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243 settings->setValue ("workspaceview/sort_by_column", sort_column); |
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244 settings->setValue ("workspaceview/sort_order", sort_order); |
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245 |
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246 settings->setValue ("workspaceview/filter_active", |
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247 m_filter_checkbox->isChecked ()); |
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248 settings->setValue ("workspaceview/filter_shown", m_filter_shown); |
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249 |
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250 QStringList mru; |
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251 for (int i = 0; i < m_filter->count (); i++) |
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252 mru.append (m_filter->itemText (i)); |
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253 settings->setValue ("workspaceview/mru_list", mru); |
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254 |
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255 settings->sync (); |
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256 |
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257 octave_dock_widget::save_settings (); |
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258 } |
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259 |
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260 void |
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261 workspace_view::filter_update (const QString& expression) |
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262 { |
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263 m_filter_model.setFilterWildcard (expression); |
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264 handle_model_changed (); |
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265 } |
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266 |
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267 void |
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268 workspace_view::filter_activate (bool state) |
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269 { |
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270 m_filter->setEnabled (state); |
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271 m_filter_model.setDynamicSortFilter (state); |
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272 |
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273 if (state) |
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274 filter_update (m_filter->currentText ()); |
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275 else |
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276 filter_update (QString ()); |
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277 } |
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278 |
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279 void |
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280 workspace_view::update_filter_history (void) |
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281 { |
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282 QString text = m_filter->currentText (); // get current text |
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283 int index = m_filter->findText (text); // and its actual index |
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284 |
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285 if (index > -1) |
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286 m_filter->removeItem (index); // remove if already existing |
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287 |
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288 m_filter->insertItem (0, text); // (re)insert at beginning |
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289 m_filter->setCurrentIndex (0); |
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290 } |
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291 |
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292 void |
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293 workspace_view::header_contextmenu_requested (const QPoint& mpos) |
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294 { |
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295 QMenu menu (this); |
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296 QSignalMapper sig_mapper (this); |
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297 |
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298 QSettings *settings = resource_manager::get_settings (); |
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299 |
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300 for (int i = 0; i < m_columns_shown.size (); i++) |
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301 { |
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302 QAction *action = menu.addAction (m_columns_shown.at (i), |
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303 &sig_mapper, SLOT (map ())); |
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304 sig_mapper.setMapping (action, i); |
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305 action->setCheckable (true); |
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306 action->setChecked (settings->value (m_columns_shown_keys.at (i),true).toBool ()); |
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307 } |
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308 |
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309 connect (&sig_mapper, SIGNAL (mapped (int)), |
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310 this, SLOT (toggle_header (int))); |
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311 |
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312 menu.exec (m_view->mapToGlobal (mpos)); |
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313 } |
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314 |
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315 void |
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316 workspace_view::toggle_header (int col) |
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317 { |
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318 QSettings *settings = resource_manager::get_settings (); |
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319 |
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320 QString key = m_columns_shown_keys.at (col); |
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321 bool shown = settings->value (key,true).toBool (); |
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322 |
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323 m_view->setColumnHidden (col + 1, shown); |
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324 |
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325 settings->setValue (key, ! shown); |
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326 settings->sync (); |
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327 |
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328 octave_dock_widget::save_settings (); |
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329 } |
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330 |
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331 void |
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332 workspace_view::contextmenu_requested (const QPoint& qpos) |
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333 { |
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334 QMenu menu (this); |
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335 |
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336 QModelIndex index = m_view->indexAt (qpos); |
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337 |
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338 // if it isnt Local, Glocal etc, allow the ctx menu |
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339 if (index.isValid () && index.column () == 0) |
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340 { |
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341 QString var_name = get_var_name (index); |
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342 |
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343 menu.addAction (tr ("Open in Variable Editor"), this, |
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344 SLOT (handle_contextmenu_edit ())); |
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345 |
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346 menu.addAction (tr ("Copy name"), this, |
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347 SLOT (handle_contextmenu_copy ())); |
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348 |
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349 menu.addAction (tr ("Copy value"), this, |
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350 SLOT (handle_contextmenu_copy_value ())); |
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351 |
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352 QAction *rename = menu.addAction (tr ("Rename"), this, |
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353 SLOT (handle_contextmenu_rename ())); |
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354 |
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355 // Use m_model here instead of using "m_view->model ()" because |
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356 // that points to the proxy model. |
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357 if (! m_model->is_top_level ()) |
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358 { |
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359 rename->setDisabled (true); |
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360 rename->setToolTip (tr ("Only top-level symbols may be renamed")); |
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361 } |
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362 |
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363 menu.addAction ("Clear " + var_name, this, |
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364 SLOT (handle_contextmenu_clear ())); |
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365 |
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366 menu.addSeparator (); |
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367 |
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368 menu.addAction ("disp (" + var_name + ')', this, |
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369 SLOT (handle_contextmenu_disp ())); |
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370 |
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371 menu.addAction ("plot (" + var_name + ')', this, |
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372 SLOT (handle_contextmenu_plot ())); |
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373 |
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374 menu.addAction ("stem (" + var_name + ')', this, |
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375 SLOT (handle_contextmenu_stem ())); |
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376 |
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377 menu.addSeparator (); |
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378 |
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379 } |
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380 |
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381 if (m_filter_shown) |
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382 menu.addAction (tr ("Hide filter"), this, |
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383 SLOT (handle_contextmenu_filter ())); |
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384 else |
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385 menu.addAction (tr ("Show filter"), this, |
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386 SLOT (handle_contextmenu_filter ())); |
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387 |
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388 menu.exec (m_view->mapToGlobal (qpos)); |
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389 } |
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390 |
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391 void |
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392 workspace_view::handle_contextmenu_copy (void) |
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393 { |
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394 QModelIndex index = m_view->currentIndex (); |
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395 |
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396 if (index.isValid ()) |
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397 { |
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398 QString var_name = get_var_name (index); |
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399 |
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400 QClipboard *clipboard = QApplication::clipboard (); |
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401 |
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402 clipboard->setText (var_name); |
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403 } |
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404 } |
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405 |
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406 void |
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407 workspace_view::handle_contextmenu_copy_value (void) |
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408 { |
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409 QModelIndex index = m_view->currentIndex (); |
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410 |
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411 if (index.isValid ()) |
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412 { |
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413 QString var_name = get_var_name (index); |
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414 |
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415 emit interpreter_event |
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416 ([var_name] (interpreter& interp) |
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417 { |
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418 // INTERPRETER THREAD |
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419 |
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420 octave_value val = interp.varval (var_name.toStdString ()); |
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421 |
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422 if (val.is_undefined ()) |
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423 val = 0; |
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424 |
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425 std::ostringstream buf; |
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426 val.print_raw (buf, true); |
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427 |
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428 // FIXME: is the following operation thread safe or should |
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429 // it be done with a signal/slot connection? |
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430 |
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431 QClipboard *clipboard = QApplication::clipboard (); |
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432 clipboard->setText (QString::fromStdString (buf.str ())); |
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433 }); |
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434 } |
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435 } |
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436 |
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437 void |
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438 workspace_view::handle_contextmenu_rename (void) |
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439 { |
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440 QModelIndex index = m_view->currentIndex (); |
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441 |
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442 if (index.isValid ()) |
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443 { |
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444 QString var_name = get_var_name (index); |
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445 |
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446 QInputDialog *inputDialog = new QInputDialog (); |
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447 |
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448 inputDialog->setOptions (QInputDialog::NoButtons); |
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449 |
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450 bool ok = false; |
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451 |
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452 QString new_name |
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453 = inputDialog->getText (nullptr, "Rename Variable", "New name:", |
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454 QLineEdit::Normal, var_name, &ok); |
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455 |
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456 if (ok && ! new_name.isEmpty ()) |
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457 emit rename_variable_signal (var_name, new_name); |
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458 } |
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459 } |
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460 |
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461 void |
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462 workspace_view::handle_contextmenu_edit (void) |
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463 { |
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464 QModelIndex index = m_view->currentIndex (); |
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465 |
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466 if (index.isValid ()) |
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467 { |
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468 QString var_name = get_var_name (index); |
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469 |
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470 symbol_info_list syminfo = m_model->get_symbol_info (); |
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471 octave_value val = syminfo.varval (var_name.toStdString ()); |
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472 |
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473 emit edit_variable_signal (var_name, val); |
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474 } |
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475 } |
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476 |
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477 void |
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478 workspace_view::handle_contextmenu_clear (void) |
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479 { |
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480 relay_contextmenu_command ("clear", true); |
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481 } |
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482 |
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483 void |
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484 workspace_view::handle_contextmenu_disp (void) |
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485 { |
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486 relay_contextmenu_command ("disp"); |
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487 } |
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488 |
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489 void |
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490 workspace_view::handle_contextmenu_plot (void) |
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491 { |
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492 relay_contextmenu_command ("figure (); plot"); |
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493 } |
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494 |
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495 void |
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496 workspace_view::handle_contextmenu_stem (void) |
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497 { |
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498 relay_contextmenu_command ("figure (); stem"); |
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499 } |
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500 |
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501 void |
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502 workspace_view::handle_contextmenu_filter (void) |
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503 { |
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504 m_filter_shown = ! m_filter_shown; |
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505 m_filter_widget->setVisible (m_filter_shown); |
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506 } |
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507 |
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508 void |
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509 workspace_view::handle_model_changed (void) |
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510 { |
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511 // m_view->resizeRowsToContents (); |
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512 // Just modify those rows that have been added rather than go through |
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513 // the whole list. For-loop test will handle when number of rows reduced. |
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514 QFontMetrics fm = m_view->fontMetrics (); |
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515 int row_height = fm.height (); |
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516 int new_row_count = m_filter_model.rowCount (); |
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517 for (int i = m_view_previous_row_count; i < new_row_count; i++) |
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518 m_view->setRowHeight (i, row_height); |
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519 m_view_previous_row_count = new_row_count; |
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520 } |
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521 |
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522 void |
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523 workspace_view::copyClipboard () |
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524 { |
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525 if (m_view->hasFocus ()) |
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526 handle_contextmenu_copy (); |
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527 } |
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528 |
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529 void |
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530 workspace_view::selectAll () |
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531 { |
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532 if (m_view->hasFocus ()) |
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533 m_view->selectAll (); |
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534 } |
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535 |
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536 void |
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537 workspace_view::relay_contextmenu_command (const QString& cmdname, bool str) |
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538 { |
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539 QModelIndex index = m_view->currentIndex (); |
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540 |
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541 if (index.isValid ()) |
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542 { |
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543 QString var_name; |
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544 |
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545 if (str) |
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546 var_name = "\'" + get_var_name (index) + "\'"; |
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547 else |
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548 var_name = get_var_name (index); |
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549 |
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550 emit command_requested (cmdname + " (" + var_name + ");"); |
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551 } |
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John W. Eaton <jwe@octave.org>
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|
552 } |
16572
17941fedd4ce
Change workspace row height to font height.
Daniel J Sebald <daniel.sebald@ieee.org>
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553 |
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554 QString |
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555 workspace_view::get_var_name (const QModelIndex& index) |
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556 { |
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557 // We are using a sort model proxy so m_model won't provide the |
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558 // correct ordering. |
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|
559 |
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560 QAbstractItemModel *m = m_view->model (); |
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561 |
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John W. Eaton <jwe@octave.org>
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562 QMap<int, QVariant> item_data |
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563 = m->itemData (index.sibling (index.row (), 0)); |
19042
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parents:
18555
diff
changeset
|
564 |
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565 return item_data[0].toString (); |
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|
566 } |
16610
a1f613e5066d
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Torsten <ttl@justmail.de>
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567 } |