Mercurial > octave-nkf
annotate libgui/src/m-editor/find-dialog.cc @ 19621:7bb80c927af5 gui-release
fix cursor positioning when searching backwards (bug #44039)
* find-dialog.cc (find): fix getting the actual cursor position when
searching backwards
author | Torsten <ttl@justmail.de> |
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date | Sun, 18 Jan 2015 22:54:14 +0100 |
parents | b0ba6653305a |
children | 37d37297acf8 |
rev | line source |
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1 /**************************************************************************** |
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2 |
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3 Find dialog derived from an example from Qt Toolkit (license below (**)) |
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4 |
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5 Copyright (C) 2012-2013 Torsten <ttl@justmail.de> |
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6 Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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7 All rights reserved. |
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8 Contact: Nokia Corporation (qt-info@nokia.com) |
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9 |
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10 This file is part of Octave. |
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11 |
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12 Octave is free software; you can redistribute it and/or modify it |
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13 under the terms of the GNU General Public License as published by the |
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14 Free Software Foundation; either version 3 of the License, or (at your |
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15 option) any later version. |
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16 |
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17 Octave is distributed in the hope that it will be useful, but WITHOUT |
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18 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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19 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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20 for more details. |
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21 |
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22 You should have received a copy of the GNU General Public License |
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23 along with Octave; see the file COPYING. If not, see |
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24 <http://www.gnu.org/licenses/>. |
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25 |
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26 ** This file is part of the examples of the Qt Toolkit. |
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27 ** |
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28 ** $QT_BEGIN_LICENSE:LGPL$ |
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29 ** Commercial Usage |
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30 ** Licensees holding valid Qt Commercial licenses may use this file in |
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31 ** accordance with the Qt Commercial License Agreement provided with the |
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32 ** Software or, alternatively, in accordance with the terms contained in |
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33 ** a written agreement between you and Nokia. |
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34 ** |
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35 ** GNU Lesser General Public License Usage |
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36 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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37 ** General Public License version 2.1 as published by the Free Software |
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38 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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39 ** packaging of this file. Please review the following information to |
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40 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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41 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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42 ** |
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43 ** In addition, as a special exception, Nokia gives you certain additional |
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44 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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45 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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46 ** |
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47 ** GNU General Public License Usage |
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48 ** Alternatively, this file may be used under the terms of the GNU |
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49 ** General Public License version 3.0 as published by the Free Software |
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50 ** Foundation and appearing in the file LICENSE.GPL included in the |
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51 ** packaging of this file. Please review the following information to |
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52 ** ensure the GNU General Public License version 3.0 requirements will be |
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53 ** met: http://www.gnu.org/copyleft/gpl.html. |
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54 ** |
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55 ** If you have questions regarding the use of this file, please contact |
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56 ** Nokia at qt-info@nokia.com. |
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57 ** $QT_END_LICENSE$ |
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58 ** |
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59 ****************************************************************************/ |
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60 |
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61 #ifdef HAVE_CONFIG_H |
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62 #include <config.h> |
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63 #endif |
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64 |
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65 #ifdef HAVE_QSCINTILLA |
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66 |
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67 #include <QtGui> |
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68 #include <QIcon> |
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69 #include "find-dialog.h" |
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70 |
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71 find_dialog::find_dialog (QsciScintilla* edit_area, QWidget *p) |
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72 : QDialog (p) |
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73 { |
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74 setWindowTitle (tr ("Find and Replace")); |
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76 |
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77 _search_label = new QLabel (tr ("Find &what:")); |
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78 _search_line_edit = new QLineEdit; |
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79 _search_label->setBuddy (_search_line_edit); |
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80 _replace_label = new QLabel (tr ("Re&place with:")); |
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81 _replace_line_edit = new QLineEdit; |
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82 _replace_label->setBuddy (_replace_line_edit); |
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83 |
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84 _case_check_box = new QCheckBox (tr ("Match &case")); |
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85 _from_start_check_box = new QCheckBox (tr ("Search from &start")); |
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86 _wrap_check_box = new QCheckBox (tr ("&Wrap while searching")); |
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87 _wrap_check_box->setChecked(true); |
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88 _find_next_button = new QPushButton (tr ("&Find Next")); |
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89 _find_prev_button = new QPushButton (tr ("Find &Previous")); |
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90 _replace_button = new QPushButton (tr ("&Replace")); |
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91 _replace_all_button = new QPushButton (tr ("Replace &All")); |
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92 |
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93 _more_button = new QPushButton (tr ("&More...")); |
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94 _more_button->setCheckable (true); |
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95 _more_button->setAutoDefault (false); |
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96 |
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97 _button_box = new QDialogButtonBox (Qt::Vertical); |
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98 _button_box->addButton (_find_next_button, QDialogButtonBox::ActionRole); |
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99 _button_box->addButton (_find_prev_button, QDialogButtonBox::ActionRole); |
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100 _button_box->addButton (_replace_button, QDialogButtonBox::ActionRole); |
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101 _button_box->addButton (_replace_all_button, QDialogButtonBox::ActionRole); |
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102 _button_box->addButton (_more_button, QDialogButtonBox::ActionRole); |
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103 _button_box->addButton (QDialogButtonBox::Close); |
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104 |
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105 _extension = new QWidget (this); |
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106 _whole_words_check_box = new QCheckBox (tr ("&Whole words")); |
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107 _regex_check_box = new QCheckBox (tr ("Regular E&xpressions")); |
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108 _backward_check_box = new QCheckBox (tr ("Search &backward")); |
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109 _search_selection_check_box = new QCheckBox (tr ("Search se&lection")); |
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110 #ifdef HAVE_QSCI_FINDSELECTION |
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111 _search_selection_check_box->setCheckable (true); |
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112 _search_selection_check_box->setEnabled (edit_area->hasSelectedText ()); |
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113 #else |
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114 _search_selection_check_box->setCheckable (false); |
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115 _search_selection_check_box->setEnabled (false); |
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116 #endif |
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117 |
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118 _edit_area = edit_area; |
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119 connect (_find_next_button, SIGNAL (clicked ()), |
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120 this, SLOT (find_next ())); |
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121 connect (_find_prev_button, SIGNAL (clicked ()), |
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122 this, SLOT (find_prev ())); |
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123 connect (_more_button, SIGNAL (toggled (bool)), |
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124 _extension, SLOT (setVisible (bool))); |
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125 connect (_replace_button, SIGNAL (clicked ()), |
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126 this, SLOT (replace ())); |
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127 connect (_replace_all_button, SIGNAL (clicked ()), |
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128 this, SLOT (replace_all ())); |
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129 connect (_backward_check_box, SIGNAL (stateChanged (int)), |
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130 this, SLOT (handle_backward_search_changed (int))); |
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131 connect (_button_box, SIGNAL (rejected ()), |
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132 this, SLOT (close ())); |
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133 connect (_search_line_edit, SIGNAL (textChanged (QString)), |
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134 this, SLOT (handle_search_text_changed (QString))); |
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135 |
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136 #ifdef HAVE_QSCI_FINDSELECTION |
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137 connect (_edit_area, SIGNAL (copyAvailable (bool)), |
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138 this, SLOT (handle_selection_changed (bool))); |
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139 connect (_search_selection_check_box, SIGNAL (stateChanged (int)), |
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140 this, SLOT (handle_sel_search_changed (int))); |
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141 #endif |
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142 |
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143 QVBoxLayout *extension_layout = new QVBoxLayout (); |
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144 extension_layout->setMargin (0); |
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145 extension_layout->addWidget (_whole_words_check_box); |
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146 extension_layout->addWidget (_backward_check_box); |
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147 extension_layout->addWidget (_search_selection_check_box); |
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148 _extension->setLayout (extension_layout); |
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149 |
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150 QGridLayout *top_left_layout = new QGridLayout; |
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151 top_left_layout->addWidget (_search_label, 1, 1); |
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152 top_left_layout->addWidget (_search_line_edit, 1, 2); |
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153 top_left_layout->addWidget (_replace_label, 2, 1); |
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154 top_left_layout->addWidget (_replace_line_edit, 2, 2); |
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155 |
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156 QVBoxLayout *left_layout = new QVBoxLayout; |
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157 left_layout->addLayout (top_left_layout); |
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158 left_layout->insertStretch (1, 5); |
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159 left_layout->addWidget (_case_check_box); |
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160 left_layout->addWidget (_from_start_check_box); |
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161 left_layout->addWidget (_wrap_check_box); |
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162 left_layout->addWidget (_regex_check_box); |
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163 |
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164 QGridLayout *main_layout = new QGridLayout; |
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165 main_layout->setSizeConstraint (QLayout::SetFixedSize); |
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166 main_layout->addLayout (left_layout, 0, 0); |
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167 main_layout->addWidget (_button_box, 0, 1); |
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168 main_layout->addWidget (_extension, 1, 0); |
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169 setLayout (main_layout); |
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170 |
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171 _extension->hide (); |
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172 _find_next_button->setDefault (true); |
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173 _find_result_available = false; |
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174 _rep_all = 0; |
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175 _rep_active = false; |
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176 |
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177 // move dialog to side of the parent if there is room on the desktop to do so. |
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178 int xp = p->x () +20; |
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179 int yp = p->y () + p->frameGeometry ().height () - sizeHint ().height () -20; |
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180 |
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181 if (yp < 0) |
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182 yp = 0; |
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183 |
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184 move (xp, yp); |
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185 |
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186 } |
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187 |
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188 // set text of "search from start" depending on backward search |
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189 void |
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190 find_dialog::handle_backward_search_changed (int backward) |
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191 { |
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192 if (backward) |
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193 _from_start_check_box->setText (tr ("Search from end")); |
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194 else |
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195 _from_start_check_box->setText (tr ("Search from start")); |
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196 } |
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197 |
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198 // search text has changed: reset the search |
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199 void |
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200 find_dialog::handle_search_text_changed (QString) |
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201 { |
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202 if (_search_selection_check_box->isChecked ()) |
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203 _find_result_available = false; |
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204 } |
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205 |
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206 #ifdef HAVE_QSCI_FINDSELECTION |
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207 void |
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208 find_dialog::handle_sel_search_changed (int selected) |
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209 { |
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210 _from_start_check_box->setEnabled (! selected); |
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211 _find_result_available = false; |
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212 } |
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213 |
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214 void |
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215 find_dialog::handle_selection_changed (bool has_selected) |
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216 { |
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217 if (_rep_active) |
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218 return; |
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219 |
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220 _search_selection_check_box->setEnabled (has_selected); |
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221 _find_result_available = false; |
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222 if (! has_selected) |
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223 _search_selection_check_box->setChecked (false); |
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224 } |
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225 #endif |
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226 |
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227 // initialize search text with selected text if this is in one single line |
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228 void |
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229 find_dialog::init_search_text () |
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230 { |
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231 if (_edit_area->hasSelectedText ()) |
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232 { |
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233 int lbeg, lend, cbeg, cend; |
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234 _edit_area->getSelection(&lbeg,&cbeg,&lend,&cend); |
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235 if (lbeg == lend) |
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236 _search_line_edit->setText (_edit_area->selectedText ()); |
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237 } |
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238 } |
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239 |
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240 void |
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241 find_dialog::find_next () |
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242 { |
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243 find (!_backward_check_box->isChecked ()); |
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244 } |
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245 |
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246 void |
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247 find_dialog::find_prev () |
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248 { |
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249 find (_backward_check_box->isChecked ()); |
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250 } |
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251 |
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252 void |
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253 find_dialog::find (bool forward) |
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254 { |
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255 int line = -1, col = -1; |
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256 bool do_wrap = _wrap_check_box->isChecked (); |
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257 bool do_forward = forward; |
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258 |
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259 if (_rep_all) |
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260 { |
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261 if (_rep_all == 1) |
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262 { |
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263 line = 0; |
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264 col = 0; |
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265 } |
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266 do_wrap = false; |
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267 // The following line is a workaround for the issue that when replacing |
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268 // a text with a new one with different size within the selection, |
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269 // the selection is not updated leading to missing or extra replacements. |
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270 // This does not happen, when the selection is search backwards |
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271 do_forward = ! _search_selection_check_box->isChecked (); |
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272 } |
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273 else |
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274 { |
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275 if (_from_start_check_box->isChecked ()) |
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276 { |
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277 if (do_forward) |
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278 { |
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279 line = 0; |
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280 col = 0; |
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281 } |
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282 else |
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283 { |
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284 line = _edit_area->lines () - 1; |
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285 col = _edit_area->text (line).length () - 1; |
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286 if (col == -1) |
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287 col = 0; |
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288 } |
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289 } |
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290 else if (! do_forward) |
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291 { |
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292 // search from previous character if search backward |
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293 _edit_area->getCursorPosition (&line,&col); |
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294 int currpos = _edit_area->positionFromLineIndex(line,col); |
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295 if (currpos > 0) currpos --; |
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296 _edit_area->lineIndexFromPosition(currpos, &line,&col); |
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297 } |
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298 } |
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299 |
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300 if (_edit_area) |
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301 { |
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302 if (_edit_area->hasSelectedText () |
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303 && _search_selection_check_box->isChecked ()) |
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304 { |
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305 #ifdef HAVE_QSCI_FINDSELECTION |
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306 if (_find_result_available) |
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307 _find_result_available = _edit_area->findNext (); |
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308 else |
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309 _find_result_available |
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310 = _edit_area->findFirstInSelection ( |
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311 _search_line_edit->text (), |
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312 _regex_check_box->isChecked (), |
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313 _case_check_box->isChecked (), |
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314 _whole_words_check_box->isChecked (), |
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315 do_forward, |
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316 true |
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317 #ifdef HAVE_QSCI_VERSION_2_6_0 |
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318 , true |
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319 #endif |
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320 ); |
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321 #endif |
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322 } |
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323 else |
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324 { |
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325 _find_result_available |
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326 = _edit_area->findFirst (_search_line_edit->text (), |
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327 _regex_check_box->isChecked (), |
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328 _case_check_box->isChecked (), |
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329 _whole_words_check_box->isChecked (), |
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330 do_wrap, |
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331 do_forward, |
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332 line,col, |
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333 true |
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334 #ifdef HAVE_QSCI_VERSION_2_6_0 |
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335 , true |
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336 #endif |
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337 ); |
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338 } |
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339 } |
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340 |
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341 if (_find_result_available) |
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342 _from_start_check_box->setChecked (0); |
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343 else if (! _rep_all) |
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344 no_matches_message (); |
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345 } |
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346 |
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347 void |
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348 find_dialog::do_replace () |
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349 { |
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350 _rep_active = true; // changes in selection not made by the user |
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351 _edit_area->replace (_replace_line_edit->text ()); |
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352 _rep_active = false; |
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353 } |
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354 |
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355 void |
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356 find_dialog::replace () |
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357 { |
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358 if (_edit_area) |
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359 { |
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360 // The following line is a workaround for the issue that when replacing |
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361 // a text with a new one with different size within the selection, |
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362 // the selection is not updated leading to missing or extra replacements. |
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363 // This does not happen, when the selection is search backwards |
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364 if (_search_selection_check_box->isChecked ()) |
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365 _backward_check_box->setChecked (true); |
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366 |
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367 // do the replace if we have selected text |
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368 if (_find_result_available && _edit_area->hasSelectedText ()) |
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369 do_replace (); |
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370 |
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371 find_next (); |
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372 } |
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373 } |
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374 |
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375 void |
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376 find_dialog::replace_all () |
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377 { |
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378 int line, col; |
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379 |
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380 if (_edit_area) |
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381 { |
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382 _edit_area->getCursorPosition (&line,&col); |
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383 |
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384 _rep_all = 1; |
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385 find_next (); // find first occurence (forward) |
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386 while (_find_result_available) // while search string is found |
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387 { |
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388 do_replace (); |
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389 _rep_all++; // inc counter |
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390 find_next (); // find next |
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391 } |
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392 |
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393 QMessageBox msg_box (QMessageBox::Information, tr ("Replace Result"), |
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394 tr ("%1 items replaced").arg(_rep_all-1), |
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395 QMessageBox::Ok, this); |
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396 msg_box.exec (); |
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397 |
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398 _rep_all = 0; |
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399 _find_result_available = false; |
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400 |
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401 if (! _search_selection_check_box->isChecked ()) |
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402 _edit_area->setCursorPosition (line,col); |
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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 find_dialog::no_matches_message () |
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408 { |
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409 QMessageBox msg_box (QMessageBox::Information, tr ("Find Result"), |
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410 tr ("No more matches found"), QMessageBox::Ok, this); |
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411 msg_box.exec (); |
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412 } |
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413 |
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414 |
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415 #endif |