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annotate libgui/src/m-editor/octave-qscintilla.cc @ 18459:f01ac1bb8a5d gui-release

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add menu entries and shortcuts for zoom functions in the editor (bug #41516) * file-editor.cc (zoom_in): slot for zoom-in action, triggering signal for tab; (zoom_out): slot for zoom-out action, triggering signal for tab; (zoom_normal): slot for zoom-to-normal action, triggering signal for tab; (construct): new View-menu with zoom-in, zoom-out and zoom-normal entries; (add_file_editor_tab): connect zoom-signal to newly created tabs; (set_shortcuts): set shortcuts for new zoom actions; (check_actions): disable zoom action when no editor tab is open * file-editor.h: zoom-in, zoom-out and zoom-normal actions, related slots and related signals to the actual tab * file-editor-tab.cc (zoom_in): new slot for signal from file_editor; (zoom_out): new slot for signal from file_editor; (zoom_normal): new slot for signal from file_editor * file-editor-tab.h: new slots zoom_in, zoom_out, zoom_normal * octave-qscintilla.cc (eventFilter): event filter for overriding qscintilla internal shortcuts; (constructor): install event filter * octave-qscintilla.h: event filter
author Torsten <ttl@justmail.de>
date Thu, 13 Feb 2014 20:39:09 +0100
parents 86c6ae5f969e
children f959c63934e6
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rev   line source
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1 /*
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2
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3 Copyright (C) 2013 Torsten
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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 // Author: Torsten <ttl@justmail.de>
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24
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25 #ifdef HAVE_CONFIG_H
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26 #include <config.h>
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27 #endif
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28
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29 #ifdef HAVE_QSCINTILLA
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30
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31 #include <Qsci/qscilexer.h>
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32 #include <QShortcut>
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33
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34 #include "octave-qscintilla.h"
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35 #include "file-editor-tab.h"
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36
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37 octave_qscintilla::octave_qscintilla (QWidget *p)
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38 : QsciScintilla (p)
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39 {
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40 installEventFilter (this);
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41 }
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42
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43 octave_qscintilla::~octave_qscintilla ()
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44 { }
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45
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46 void
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47 octave_qscintilla::get_global_textcursor_pos (QPoint *global_pos,
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48 QPoint *local_pos)
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49 {
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50 long position = SendScintilla (QsciScintillaBase::SCI_GETCURRENTPOS);
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51 long point_x = SendScintilla
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52 (QsciScintillaBase::SCI_POINTXFROMPOSITION,0,position);
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53 long point_y = SendScintilla
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54 (QsciScintillaBase::SCI_POINTYFROMPOSITION,0,position);
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55 *local_pos = QPoint (point_x,point_y); // local cursor position
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56 *global_pos = mapToGlobal (*local_pos); // global position of cursor
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57 }
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58
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59 // determine the actual word and whether we are in an octave or matlab script
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60 bool
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61 octave_qscintilla::get_actual_word ()
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62 {
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63 QPoint global_pos, local_pos;
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64 get_global_textcursor_pos (&global_pos, &local_pos);
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65 _word_at_cursor = wordAtPoint (local_pos);
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66 QString lexer_name = lexer ()->lexer ();
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67 return ((lexer_name == "octave" || lexer_name == "matlab")
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68 && !_word_at_cursor.isEmpty ());
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69 }
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70
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71 // call documentation or help on the current word
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72 void
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73 octave_qscintilla::context_help_doc (bool documentation)
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74 {
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75 if (get_actual_word ())
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76 contextmenu_help_doc (documentation);
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77 }
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78
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79 // call edit the function related to the current word
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80 void
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81 octave_qscintilla::context_edit ()
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82 {
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83 if (get_actual_word ())
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84 contextmenu_edit (true);
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85 }
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86
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87 // call edit the function related to the current word
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88 void
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89 octave_qscintilla::context_run ()
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90 {
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91 if (hasSelectedText ())
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92 contextmenu_run (true);
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93 }
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94
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95 #ifdef HAVE_QSCI_VERSION_2_6_0
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96 // context menu requested
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97 void
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98 octave_qscintilla::contextMenuEvent (QContextMenuEvent *e)
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99 {
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100 QMenu *context_menu = createStandardContextMenu ( ); // standard menu
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101
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102 // the menu's position
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103 QPoint global_pos, local_pos;
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104
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105 if (e->reason () == QContextMenuEvent::Mouse)
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106 {
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107 // context menu by mouse
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108 global_pos = e->globalPos (); // global mouse position
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109 local_pos = e->pos (); // local mouse position
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110 }
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111 else
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112 {
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113 // context menu by keyboard or other: get point of text cursor
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114 get_global_textcursor_pos (&global_pos, &local_pos);
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115 QRect editor_rect = geometry (); // editor rect mapped to global
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116 editor_rect.moveTopLeft
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117 (parentWidget ()->mapToGlobal (editor_rect.topLeft ()));
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118 if (!editor_rect.contains (global_pos)) // is cursor outside editor?
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119 global_pos = editor_rect.topLeft (); // yes, take top left corner
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120 }
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121
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122 // additional custom entries of the context menu
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123 context_menu->addSeparator (); // separator before custom entries
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124
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125 // help menu: get the position of the mouse or the text cursor
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126 // (only for octave files)
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127 QString lexer_name = lexer ()->lexer ();
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128 if (lexer_name == "octave" || lexer_name == "matlab")
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129 {
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130 _word_at_cursor = wordAtPoint (local_pos);
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131 if (!_word_at_cursor.isEmpty ())
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132 {
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133 context_menu->addAction (tr ("Help on") + " " + _word_at_cursor,
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134 this, SLOT (contextmenu_help (bool)));
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135 context_menu->addAction (tr ("Documentation on")
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136 + " " + _word_at_cursor,
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137 this, SLOT (contextmenu_doc (bool)));
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138 context_menu->addAction (tr ("Edit") + " " + _word_at_cursor,
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139 this, SLOT (contextmenu_edit (bool)));
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140 }
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141 context_menu->addSeparator (); // separator before custom entries
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142 if (hasSelectedText ())
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143 context_menu->addAction (tr ("&Run Selection"),
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144 this, SLOT (contextmenu_run (bool)));
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145 }
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146
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147 // finaly show the menu
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148 context_menu->exec (global_pos);
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149 }
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150 #endif
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151
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152
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153 // handle the menu entry for calling help or doc
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154 void
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155 octave_qscintilla::contextmenu_doc (bool)
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156 {
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157 contextmenu_help_doc (true);
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158 }
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159 void
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160 octave_qscintilla::contextmenu_help (bool)
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161 {
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162 contextmenu_help_doc (false);
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163 }
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164
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165 // common function with flag for documentation
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166 void
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167 octave_qscintilla::contextmenu_help_doc (bool documentation)
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168 {
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169 QString command;
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170 if (documentation)
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171 command = "doc ";
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172 else
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173 command = "help ";
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174 emit execute_command_in_terminal_signal (command + _word_at_cursor);
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175 }
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176
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177 void
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178 octave_qscintilla::contextmenu_edit (bool)
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179 {
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180 emit execute_command_in_terminal_signal (QString("edit ") + _word_at_cursor);
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181 }
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182
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183 void
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184 octave_qscintilla::contextmenu_run (bool)
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185 {
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186 QStringList commands = selectedText ().split (QRegExp("[\r\n]"),
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187 QString::SkipEmptyParts);
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188 for (int i = 0; i < commands.size (); i++ )
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189 emit execute_command_in_terminal_signal (commands.at (i));
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190 }
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191
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192 bool
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193 octave_qscintilla::eventFilter(QObject *obj, QEvent *e)
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194 {
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195 if (e->type() == QEvent::ShortcutOverride)
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196 return true;
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197 else
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198 return QObject::eventFilter(obj, e);
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199 }
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200
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201 #endif