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annotate libgui/src/history-dockwidget.cc @ 16057:c3057d80cf91

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Created common octave_dock_widget class * octave_dock_widget.h : New class octave_dock_widget with common dock widget methods, slots and signals * file_editor_interface.h: Now inherit from octave_dock_widget, removed common dock widget code * file_editor.h: Now inherit from octave_dock_widget, removed common dock widget code * file_editor.cc: Now inherit from octave_dock_widget, removed common dock widget code * files_dockwidget.h: Now inherit from octave_dock_widget, removed common dock widget code * files_dockwidget.cc: Now inherit from octave_dock_widget, removed common dock widget code * history_dockwidget.h: Now inherit from octave_dock_widget, removed common dock widget code * history_dockwidget.cc: Now inherit from octave_dock_widget, removed common dock widget methods * terminal_dockwidget.h: Now inherit from octave_dock_widget, removed common dock widget code * terminal_dockwidget.cc: Now inherit from octave_dock_widget, removed common dock widget code * module.mk: Added octave_dock_widget
author Richard Crozier <richard.crozier@yahoo.co.uk>
date Wed, 06 Feb 2013 21:45:04 +0000
parents 80e99730e5d4
children 0486a29d780f
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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 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include <QApplication>
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28 #include <QClipboard>
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29 #include <QVBoxLayout>
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30 #include <QMenu>
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31
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32 #include "error.h"
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33
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34 #include "cmd-hist.h"
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35
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36 #include "history-dockwidget.h"
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37 #include "octave-link.h"
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38
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39 history_dock_widget::history_dock_widget (QWidget * p)
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40 : octave_dock_widget (p)
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41 {
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42 setObjectName ("HistoryDockWidget");
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43 construct ();
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44 }
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45
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46 void
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47 history_dock_widget::construct ()
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48 {
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49 _history_model = new QStringListModel ();
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50 _sort_filter_proxy_model.setSourceModel (_history_model);
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51 _history_list_view = new QListView (this);
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52 _history_list_view->setModel (&_sort_filter_proxy_model);
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53 _history_list_view->setAlternatingRowColors (true);
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54 _history_list_view->setEditTriggers (QAbstractItemView::NoEditTriggers);
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55 _history_list_view->setStatusTip (tr ("Doubleclick a command to transfer it to the terminal."));
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56 _history_list_view->setSelectionMode (QAbstractItemView::ExtendedSelection);
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57 _history_list_view->setContextMenuPolicy(Qt::CustomContextMenu);
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58 connect(_history_list_view, SIGNAL(customContextMenuRequested(const QPoint &)), this, SLOT(ctxMenu(const QPoint &)));
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59
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60 _filter_line_edit = new QLineEdit (this);
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61 _filter_line_edit->setStatusTip (tr ("Enter text to filter the command history."));
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62 QVBoxLayout *vbox_layout = new QVBoxLayout ();
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63
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64 setWindowIcon (QIcon(":/actions/icons/logo.png"));
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65 setWindowTitle (tr ("Command History"));
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66 setWidget (new QWidget ());
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67
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68 vbox_layout->addWidget (_history_list_view);
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69 vbox_layout->addWidget (_filter_line_edit);
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70 vbox_layout->setMargin (2);
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71
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72 widget ()->setLayout (vbox_layout);
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73
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74 connect (_filter_line_edit, SIGNAL (textEdited (QString)),
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75 &_sort_filter_proxy_model, SLOT (setFilterWildcard (QString)));
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76
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77 connect (_history_list_view, SIGNAL (doubleClicked (QModelIndex)),
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78 this, SLOT (handle_double_click (QModelIndex)));
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79
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80 _update_history_model_timer.setInterval (200);
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81 _update_history_model_timer.setSingleShot (true);
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82
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83 connect (&_update_history_model_timer,
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84 SIGNAL (timeout ()),
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85 this,
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86 SLOT (request_history_model_update ()));
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87
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88 _update_history_model_timer.start ();
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90 setFocusProxy (_filter_line_edit);
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91 }
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92
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93 void history_dock_widget::ctxMenu(const QPoint &xpos) {
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94 QMenu *menu = new QMenu;
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95 menu->addAction(tr("Copy"), this, SLOT(handle_contextmenu_copy(bool)));
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96 menu->addAction(tr("Evaluate"), this, SLOT(handle_contextmenu_evaluate(bool)));
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97 menu->exec(_history_list_view->mapToGlobal(xpos));
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98 }
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99
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100 void history_dock_widget::handle_contextmenu_copy(bool)
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101 {
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102 QString text;
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103 QItemSelectionModel *selectionModel = _history_list_view->selectionModel();
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104 QModelIndexList rows = selectionModel->selectedRows();
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105 QModelIndexList::iterator it;
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106 for (it=rows.begin() ; it != rows.end(); it++) {
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107 if ((*it).isValid()) {
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108 text += (*it).data().toString()+"\n";
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109 }
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110 }
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111 QApplication::clipboard()->setText(text);
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112 }
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113
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114 void history_dock_widget::handle_contextmenu_evaluate(bool)
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115 {
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116 QItemSelectionModel *selectionModel = _history_list_view->selectionModel();
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117 QModelIndexList rows = selectionModel->selectedRows();
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118 QModelIndexList::iterator it;
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119 for (it=rows.begin() ; it != rows.end(); it++) {
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120 if ((*it).isValid()) {
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121 emit command_double_clicked ((*it).data().toString()+"\n");
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122 }
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123 }
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124 }
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125
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126 void
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127 history_dock_widget::handle_double_click (QModelIndex modelIndex)
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128 {
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129 emit command_double_clicked (modelIndex.data().toString()+"\n");
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130 }
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131
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132 void
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133 history_dock_widget::request_history_model_update ()
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134 {
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135 octave_link::post_event (this, &history_dock_widget::update_history_callback);
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136 }
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137
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138 void
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139 history_dock_widget::reset_model ()
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140 {
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141 _history_model->setStringList (QStringList ());
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142 }
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143
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144 void
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145 history_dock_widget::update_history_callback (void)
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146 {
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147 static bool scroll_window = false;
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148
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149 // Determine the client's (our) history length and the one of the server.
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150 int clientHistoryLength = _history_model->rowCount ();
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151 int serverHistoryLength = command_history::length ();
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152
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153 // If were behind the server, iterate through all new entries and add
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154 // them to our history.
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155 if (clientHistoryLength < serverHistoryLength)
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156 {
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157 int elts_to_add = serverHistoryLength - clientHistoryLength;
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158
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159 _history_model->insertRows (clientHistoryLength, elts_to_add);
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160
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161 for (int i = clientHistoryLength; i < serverHistoryLength; i++)
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162 {
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163 std::string entry = command_history::get_entry (i);
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164
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165 _history_model->setData (_history_model->index (i),
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166 QString::fromUtf8 (entry.data (), entry.size ()));
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167 }
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168
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169 // FIXME -- does this behavior make sense? Calling
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170 // _history_list_view->scrollToBottom () here doesn't seem to
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171 // have any effect. Instead, we need to request that action
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172 // and wait until the next event occurs in which no items
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173 // are added to the history list.
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174
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175 scroll_window = true;
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176 }
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177 else if (scroll_window)
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178 {
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179 scroll_window = false;
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180
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181 _history_list_view->scrollToBottom ();
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182 }
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183
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184 // Post a new update event in a given time. This prevents flooding the
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185 // event queue.
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186 _update_history_model_timer.start ();
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187 }