Mercurial > octave

annotate libgui/src/m-editor/octave-qscintilla.cc @ 23230:f7fdc9ef3971

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improve line breaking in the editor * file-editor-tab.cc (handle_cursor_moved): use real cursor position taking the tab length into account and do not leave blanks at the end of the line * octave-qscintilla..h / octave-qscintilla.cc (get_current_position): new function calculating the real column taking the tab length into account
author Torsten <mttl@mailbox.org>
date Fri, 24 Feb 2017 21:37:11 +0100
parents 4b642b593ec2
children aaf20024db6f
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1 /*
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2
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3 Copyright (C) 2013-2017 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
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9 the Free Software Foundation; either version 3 of the License, or
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10 (at your 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
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License 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 #if defined (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 #if defined (HAVE_QSCINTILLA)
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30
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31 #include <Qsci/qscilexer.h>
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32 #include <Qsci/qscicommandset.h>
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33 #include <QShortcut>
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34 #include <QMessageBox>
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35
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36 #include "octave-qscintilla.h"
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37 #include "file-editor-tab.h"
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38 #include "shortcut-manager.h"
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39
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40 octave_qscintilla::octave_qscintilla (QWidget *p)
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41 : QsciScintilla (p)
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42 {
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43 connect (this, SIGNAL (textChanged ()), this, SLOT (text_changed ()));
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44
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45 // clear scintilla edit shortcuts that are handled by the editor
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46 QsciCommandSet *cmd_set = standardCommands ();
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47
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48 #if defined (HAVE_QSCI_VERSION_2_6_0)
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49 // find () was added in QScintilla 2.6
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50 cmd_set->find (QsciCommand::SelectionCopy)->setKey (0);
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51 cmd_set->find (QsciCommand::SelectionCut)->setKey (0);
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52 cmd_set->find (QsciCommand::Paste)->setKey (0);
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53 cmd_set->find (QsciCommand::SelectAll)->setKey (0);
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54 cmd_set->find (QsciCommand::SelectionDuplicate)->setKey (0);
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55 cmd_set->find (QsciCommand::LineTranspose)->setKey (0);
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56 cmd_set->find (QsciCommand::Undo)->setKey (0);
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57 cmd_set->find (QsciCommand::Redo)->setKey (0);
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58 cmd_set->find (QsciCommand::SelectionUpperCase)->setKey (0);
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59 cmd_set->find (QsciCommand::SelectionLowerCase)->setKey (0);
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60 cmd_set->find (QsciCommand::ZoomIn)->setKey (0);
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61 cmd_set->find (QsciCommand::ZoomOut)->setKey (0);
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62 cmd_set->find (QsciCommand::DeleteWordLeft)->setKey (0);
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63 cmd_set->find (QsciCommand::DeleteWordRight)->setKey (0);
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64 cmd_set->find (QsciCommand::DeleteLineLeft)->setKey (0);
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65 cmd_set->find (QsciCommand::DeleteLineRight)->setKey (0);
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66 cmd_set->find (QsciCommand::LineDelete)->setKey (0);
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67 cmd_set->find (QsciCommand::LineCut)->setKey (0);
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68 cmd_set->find (QsciCommand::LineCopy)->setKey (0);
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69 #else
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70 // find commands via its default key (tricky way without find ())
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71 QList< QsciCommand * > cmd_list = cmd_set->commands ();
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72 for (int i = 0; i < cmd_list.length (); i++)
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73 {
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74 int cmd_key = cmd_list.at (i)->key ();
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75 switch (cmd_key)
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76 {
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77 case Qt::Key_C | Qt::CTRL : // SelectionCopy
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78 case Qt::Key_X | Qt::CTRL : // SelectionCut
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79 case Qt::Key_V | Qt::CTRL : // Paste
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80 case Qt::Key_A | Qt::CTRL : // SelectAll
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81 case Qt::Key_D | Qt::CTRL : // SelectionDuplicate
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82 case Qt::Key_T | Qt::CTRL : // LineTranspose
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83 case Qt::Key_Z | Qt::CTRL : // Undo
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84 case Qt::Key_Y | Qt::CTRL : // Redo
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85 case Qt::Key_Z | Qt::CTRL | Qt::SHIFT : // Redo
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86 case Qt::Key_U | Qt::CTRL : // SelectionLowerCase
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87 case Qt::Key_U | Qt::CTRL | Qt::SHIFT : // SelectionUpperCase
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88 case Qt::Key_Plus | Qt::CTRL : // ZoomIn
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89 case Qt::Key_Minus | Qt::CTRL : // ZoomOut
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90 case Qt::Key_Backspace | Qt::CTRL | Qt::SHIFT : // DeleteLineLeft
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91 case Qt::Key_Delete | Qt::CTRL | Qt::SHIFT : // DeleteLineRight
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92 case Qt::Key_K | Qt::META : // DeleteLineRight
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93 case Qt::Key_Backspace | Qt::CTRL : // DeleteWordLeft
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94 case Qt::Key_Delete | Qt::CTRL : // DeleteWordRight
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95 case Qt::Key_L | Qt::CTRL | Qt::SHIFT : // LineDelete
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96 case Qt::Key_L | Qt::CTRL : // LineCut
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97 case Qt::Key_T | Qt::CTRL | Qt::SHIFT : // LineCopy
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98 cmd_list.at (i)->setKey (0);
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99 }
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100 }
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101 #endif
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102
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103 #if defined (Q_OS_MAC)
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104 // Octave interprets Cmd key as Meta whereas Qscintilla interprets it
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105 // as Ctrl. We thus invert Meta/Ctrl in Qscintilla's shortcuts list.
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106 QList< QsciCommand * > cmd_list_mac = cmd_set->commands ();
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107 for (int i = 0; i < cmd_list_mac.length (); i++)
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108 {
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109 // Primary key
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110 int key = cmd_list_mac.at (i)->key ();
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111
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112 if (static_cast<int> (key | Qt::META) == key &&
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113 static_cast<int> (key | Qt::CTRL) != key)
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114 key = (key ^ Qt::META) | Qt::CTRL;
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115 else if (static_cast<int> (key | Qt::CTRL) == key)
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116 key = (key ^ Qt::CTRL) | Qt::META;
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117
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118 cmd_list_mac.at (i)->setKey (key);
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119
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120 // Alternate key
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121 key = cmd_list_mac.at (i)->alternateKey ();
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122
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123 if (static_cast<int> (key | Qt::META) == key &&
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124 static_cast<int> (key | Qt::CTRL) != key)
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125 key = (key ^ Qt::META) | Qt::CTRL;
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126 else if (static_cast<int> (key | Qt::CTRL) == key)
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127 key = (key ^ Qt::CTRL) | Qt::META;
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128
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129 cmd_list_mac.at (i)->setAlternateKey (key);
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130 }
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131 #endif
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132
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133 // init state of undo/redo action for this tab
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134 emit status_update (isUndoAvailable (), isRedoAvailable ());
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135 }
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136
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137 octave_qscintilla::~octave_qscintilla ()
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138 { }
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139
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140 void
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141 octave_qscintilla::get_global_textcursor_pos (QPoint *global_pos,
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142 QPoint *local_pos)
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143 {
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144 long position = SendScintilla (SCI_GETCURRENTPOS);
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145 long point_x = SendScintilla
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146 (SCI_POINTXFROMPOSITION,0,position);
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147 long point_y = SendScintilla
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148 (SCI_POINTYFROMPOSITION,0,position);
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149 *local_pos = QPoint (point_x,point_y); // local cursor position
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150 *global_pos = mapToGlobal (*local_pos); // global position of cursor
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151 }
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152
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153 // determine the actual word and whether we are in an octave or matlab script
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154 bool
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155 octave_qscintilla::get_actual_word ()
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156 {
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157 QPoint global_pos, local_pos;
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158 get_global_textcursor_pos (&global_pos, &local_pos);
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159 _word_at_cursor = wordAtPoint (local_pos);
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160 QString lexer_name = lexer ()->lexer ();
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161 return ((lexer_name == "octave" || lexer_name == "matlab")
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162 && ! _word_at_cursor.isEmpty ());
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163 }
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164
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165 // call documentation or help on the current word
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166 void
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167 octave_qscintilla::context_help_doc (bool documentation)
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168 {
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169 if (get_actual_word ())
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170 contextmenu_help_doc (documentation);
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171 }
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172
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173 // call edit the function related to the current word
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174 void
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175 octave_qscintilla::context_edit ()
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176 {
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177 if (get_actual_word ())
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178 contextmenu_edit (true);
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179 }
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180
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181 // call edit the function related to the current word
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182 void
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183 octave_qscintilla::context_run ()
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184 {
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185 if (hasSelectedText ())
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186 contextmenu_run (true);
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187 }
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188
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189 // context menu requested
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190 void
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191 octave_qscintilla::contextMenuEvent (QContextMenuEvent *e)
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192 {
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193 #if defined (HAVE_QSCI_VERSION_2_6_0)
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194 QPoint global_pos, local_pos; // the menu's position
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195 QMenu *context_menu = createStandardContextMenu (); // standard menu
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196
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197 bool in_left_margin = false;
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198
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199 // determine position depending on mouse or keyboard event
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200 if (e->reason () == QContextMenuEvent::Mouse)
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201 {
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202 // context menu by mouse
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203 global_pos = e->globalPos (); // global mouse position
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204 local_pos = e->pos (); // local mouse position
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205 if (e->x () < marginWidth (1) + marginWidth (2))
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206 in_left_margin = true;
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207 }
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208 else
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209 {
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210 // context menu by keyboard or other: get point of text cursor
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211 get_global_textcursor_pos (&global_pos, &local_pos);
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212 QRect editor_rect = geometry (); // editor rect mapped to global
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213 editor_rect.moveTopLeft
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214 (parentWidget ()->mapToGlobal (editor_rect.topLeft ()));
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215 if (! editor_rect.contains (global_pos)) // is cursor outside editor?
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216 global_pos = editor_rect.topLeft (); // yes, take top left corner
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217 }
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218
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219 #if defined (HAVE_QSCI_VERSION_2_6_0)
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220 if (! in_left_margin)
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221 #endif
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222 {
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223 // fill context menu with editor's standard actions
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224 emit create_context_menu_signal (context_menu);
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225
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226 // additional custom entries of the context menu
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227 context_menu->addSeparator (); // separator before custom entries
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228
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229 // help menu: get the position of the mouse or the text cursor
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230 // (only for octave files)
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231 QString lexer_name = lexer ()->lexer ();
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232 if (lexer_name == "octave" || lexer_name == "matlab")
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233 {
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234 _word_at_cursor = wordAtPoint (local_pos);
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235 if (! _word_at_cursor.isEmpty ())
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236 {
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237 context_menu->addAction (tr ("Help on") + " " + _word_at_cursor,
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238 this, SLOT (contextmenu_help (bool)));
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239 context_menu->addAction (tr ("Documentation on")
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240 + " " + _word_at_cursor,
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241 this, SLOT (contextmenu_doc (bool)));
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242 context_menu->addAction (tr ("Edit") + " " + _word_at_cursor,
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243 this, SLOT (contextmenu_edit (bool)));
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244 }
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245 }
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246 }
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247 #if defined (HAVE_QSCI_VERSION_2_6_0)
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248 else
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249 {
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250 // remove all standard actions from scintilla
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251 QList<QAction *> all_actions = context_menu->actions ();
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252 QAction* a;
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253
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diff changeset
254 foreach (a, all_actions)
23223
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255 context_menu->removeAction (a);
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256
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diff changeset
257 a = context_menu->addAction (tr ("dbstop if ..."), this,
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258 SLOT (contextmenu_break_condition (bool)));
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diff changeset
259 a->setData (local_pos);
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260 }
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261 #endif
16735
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262
cee305c91e91 show help menu in editors context menu only for octave files
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263 // finaly show the menu
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264 context_menu->exec (global_pos);
20277
48d9001bdee3 Avoid HAVE_ macros in header file.
John W. Eaton <jwe@octave.org>
parents: 19697
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265 #endif
16731
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266 }
01d523d5f796 add help for word at mouse or text cursor to the editors context menu
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267
17627
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268 // handle the menu entry for calling help or doc
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269 void
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270 octave_qscintilla::contextmenu_doc (bool)
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271 {
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272 contextmenu_help_doc (true);
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273 }
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274 void
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275 octave_qscintilla::contextmenu_help (bool)
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276 {
17627
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277 contextmenu_help_doc (false);
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278 }
811019b9ef57 Add help and documentation on actual keyword to the editor menu
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parents: 16768
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279
811019b9ef57 Add help and documentation on actual keyword to the editor menu
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280 // common function with flag for documentation
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281 void
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282 octave_qscintilla::contextmenu_help_doc (bool documentation)
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283 {
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284 if (documentation)
19606
3156773fcc80 open a doc page from editor directly without command window
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285 emit show_doc_signal (_word_at_cursor);
17627
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286 else
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287 emit execute_command_in_terminal_signal ("help " + _word_at_cursor);
16731
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288 }
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289
17628
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290 void
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291 octave_qscintilla::contextmenu_edit (bool)
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292 {
19004
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293 emit context_menu_edit_signal (_word_at_cursor);
17628
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294 }
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295
17635
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296 void
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297 octave_qscintilla::contextmenu_run (bool)
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298 {
23070
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299 QStringList commands = selectedText ().split (QRegExp ("[\r\n]"),
17790
86c6ae5f969e Use GNU style coding conventions for code in libgui/
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300 QString::SkipEmptyParts);
18678
6113e0c6920b maint: Clean up extra spaces before/after parentheses.
Rik <rik@octave.org>
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diff changeset
301 for (int i = 0; i < commands.size (); i++)
17669
b7670c05731b *octave-qscintilla.cc(contextmenu_run): split selection into single commands
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302 emit execute_command_in_terminal_signal (commands.at (i));
17635
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303 }
7945344506ae Add possibility to run selected text of the editor in the terminal
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parents: 17628
diff changeset
304
21158
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
305 // wrappers for dbstop related context menu items
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Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
306
21578
683a1beee538 maint: Use "FIXME:" for all code blocks needing further attention.
Rik <rik@octave.org>
parents: 21371
diff changeset
307 // FIXME: Why can't the data be sent as the argument to the function???
21158
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Lachlan Andrew <lachlanbis@gmail.com>
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diff changeset
308 void
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diff changeset
309 octave_qscintilla::contextmenu_break_condition (bool)
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Lachlan Andrew <lachlanbis@gmail.com>
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diff changeset
310 {
21724
aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef"
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diff changeset
311 #if defined (HAVE_QSCI_VERSION_2_6_0)
23070
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parents: 22755
diff changeset
312 QAction *action = qobject_cast<QAction *>(sender ());
21158
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diff changeset
313 QPoint local_pos = action->data ().value<QPoint> ();
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
314
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
315 // pick point just right of margins, so lineAt doesn't give -1
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
316 int margins = marginWidth (1) + marginWidth (2) + marginWidth (3);
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parents: 20986
diff changeset
317 local_pos = QPoint (margins + 1, local_pos.y ());
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
318
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
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diff changeset
319 emit context_menu_break_condition_signal (lineAt (local_pos));
21371
dc3252099232 Allow GUI build with QScintilla 2.4 (bug #47226).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21301
diff changeset
320 #endif
21158
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
321 }
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
322
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
323 void
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
324 octave_qscintilla::contextmenu_break_once (const QPoint& local_pos)
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
325 {
21724
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parents: 21578
diff changeset
326 #if defined (HAVE_QSCI_VERSION_2_6_0)
21158
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
327 emit context_menu_break_once (lineAt (local_pos));
21371
dc3252099232 Allow GUI build with QScintilla 2.4 (bug #47226).
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21301
diff changeset
328 #endif
21158
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
329 }
65827e9cccb8 Gui support for enhancement of dbstop.
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20986
diff changeset
330
18684
86eca5d178a6 disable some global shortcuts when editor gets focus to prevent conflicts
Torsten <ttl@justmail.de>
parents: 18675
diff changeset
331 void
18689
fac35875f6eb update enabled status of undo/redo actions in the editor
Torsten <ttl@justmail.de>
parents: 18687
diff changeset
332 octave_qscintilla::text_changed ()
fac35875f6eb update enabled status of undo/redo actions in the editor
Torsten <ttl@justmail.de>
parents: 18687
diff changeset
333 {
fac35875f6eb update enabled status of undo/redo actions in the editor
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parents: 18687
diff changeset
334 emit status_update (isUndoAvailable (), isRedoAvailable ());
fac35875f6eb update enabled status of undo/redo actions in the editor
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parents: 18687
diff changeset
335 }
fac35875f6eb update enabled status of undo/redo actions in the editor
Torsten <ttl@justmail.de>
parents: 18687
diff changeset
336
20986
00835323fb44 prevent shortcut ambiguity between main and editor window
Torsten <ttl@justmail.de>
parents: 20955
diff changeset
337 // when edit area gets focus update information on undo/redo actions
23070
bef714f45999 maint: Use space after function name/before parenthesis in libgui.
Rik <rik@octave.org>
parents: 22755
diff changeset
338 void octave_qscintilla::focusInEvent (QFocusEvent *focusEvent)
20986
00835323fb44 prevent shortcut ambiguity between main and editor window
Torsten <ttl@justmail.de>
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diff changeset
339 {
00835323fb44 prevent shortcut ambiguity between main and editor window
Torsten <ttl@justmail.de>
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diff changeset
340 emit status_update (isUndoAvailable (), isRedoAvailable ());
00835323fb44 prevent shortcut ambiguity between main and editor window
Torsten <ttl@justmail.de>
parents: 20955
diff changeset
341
23070
bef714f45999 maint: Use space after function name/before parenthesis in libgui.
Rik <rik@octave.org>
parents: 22755
diff changeset
342 QsciScintilla::focusInEvent (focusEvent);
20986
00835323fb44 prevent shortcut ambiguity between main and editor window
Torsten <ttl@justmail.de>
parents: 20955
diff changeset
343 }
00835323fb44 prevent shortcut ambiguity between main and editor window
Torsten <ttl@justmail.de>
parents: 20955
diff changeset
344
23190
4a2c42792d6c highlight all occurrences of a selected word in the editor (bug #41470)
Torsten <mttl@mailbox.org>
parents: 23084
diff changeset
345 // helper function for clearing all indicators of a specific style
4a2c42792d6c highlight all occurrences of a selected word in the editor (bug #41470)
Torsten <mttl@mailbox.org>
parents: 23084
diff changeset
346 void
4a2c42792d6c highlight all occurrences of a selected word in the editor (bug #41470)
Torsten <mttl@mailbox.org>
parents: 23084
diff changeset
347 octave_qscintilla::clear_indicator (int indicator_style)
4a2c42792d6c highlight all occurrences of a selected word in the editor (bug #41470)
Torsten <mttl@mailbox.org>
parents: 23084
diff changeset
348 {
4a2c42792d6c highlight all occurrences of a selected word in the editor (bug #41470)
Torsten <mttl@mailbox.org>
parents: 23084
diff changeset
349 int end_pos = text ().length ();
4a2c42792d6c highlight all occurrences of a selected word in the editor (bug #41470)
Torsten <mttl@mailbox.org>
parents: 23084
diff changeset
350 int end_line, end_col;
4a2c42792d6c highlight all occurrences of a selected word in the editor (bug #41470)
Torsten <mttl@mailbox.org>
parents: 23084
diff changeset
351 lineIndexFromPosition (end_pos, &end_line, &end_col);
4a2c42792d6c highlight all occurrences of a selected word in the editor (bug #41470)
Torsten <mttl@mailbox.org>
parents: 23084
diff changeset
352 clearIndicatorRange (0, 0, end_line, end_col, indicator_style);
20986
00835323fb44 prevent shortcut ambiguity between main and editor window
Torsten <ttl@justmail.de>
parents: 20955
diff changeset
353 }
00835323fb44 prevent shortcut ambiguity between main and editor window
Torsten <ttl@justmail.de>
parents: 20955
diff changeset
354
23230
f7fdc9ef3971 improve line breaking in the editor
Torsten <mttl@mailbox.org>
parents: 23223
diff changeset
355 // Function returning the true cursor position where the tab length
f7fdc9ef3971 improve line breaking in the editor
Torsten <mttl@mailbox.org>
parents: 23223
diff changeset
356 // is taken into account.
f7fdc9ef3971 improve line breaking in the editor
Torsten <mttl@mailbox.org>
parents: 23223
diff changeset
357 void
f7fdc9ef3971 improve line breaking in the editor
Torsten <mttl@mailbox.org>
parents: 23223
diff changeset
358 octave_qscintilla::get_current_position (int *pos, int *line, int *col)
f7fdc9ef3971 improve line breaking in the editor
Torsten <mttl@mailbox.org>
parents: 23223
diff changeset
359 {
f7fdc9ef3971 improve line breaking in the editor
Torsten <mttl@mailbox.org>
parents: 23223
diff changeset
360 *pos = SendScintilla (QsciScintillaBase::SCI_GETCURRENTPOS);
f7fdc9ef3971 improve line breaking in the editor
Torsten <mttl@mailbox.org>
parents: 23223
diff changeset
361 *line = SendScintilla (QsciScintillaBase::SCI_LINEFROMPOSITION, *pos);
f7fdc9ef3971 improve line breaking in the editor
Torsten <mttl@mailbox.org>
parents: 23223
diff changeset
362 *col = SendScintilla (QsciScintillaBase::SCI_GETCOLUMN, *pos);
f7fdc9ef3971 improve line breaking in the editor
Torsten <mttl@mailbox.org>
parents: 23223
diff changeset
363 }
16731
01d523d5f796 add help for word at mouse or text cursor to the editors context menu
Torsten <ttl@justmail.de>
parents:
diff changeset
364 #endif