Mercurial > octave-nkf
view libgui/src/m-editor/find-dialog.cc @ 18888:0a66861d8069 gui-release
implementation of search in selection in gui editor (bbug #41196)
* configure.ac: do the check OCTAVE_CHECK_FUNC_QSCI_FINDSELECTION
* acinclude.m4 (OCTAVE_CHECK_FUNC_QSCI_FINDSELECTION): new function testing
whether QsciScintilla::findFirstInSelection is available (added in 2.7)
* find-dialog.cc (constructor): box for searching in selection enabled when
function is available, connect signals when search has changed and when
search selection is activated to the new related slots, initialize new
flag for indicating an ongoing replace;
(handle_search_text_changed): new slot reseting search result;
(handle_sel_search_changed): new slot reseting search result;
(handle_selection_changed): new slot enabling check box for search selection,
nothing is done when the change was due to a replace operation;
(find): revise calculation of cursor position for starting the search at end,
add searching in selection if related check box is checked, use backward
search when replacing all
(do_replace): set flag for an active replace operation indicating that the
selection is not changed by the user;
(replace): switch to robust backward search, using new function do_replace;
(replace_all): recover cursor position only when nor searching in selection,
reset search result after operation, using new function do_replace
* find-dialog.h: new flag for active replace operation, new slots
author | Torsten <ttl@justmail.de> |
---|---|
date | Sun, 22 Jun 2014 15:42:00 +0200 |
parents | 12291fb903de |
children | 2b82d2f29a7b 521d4959fc42 |
line wrap: on
line source
/**************************************************************************** Find dialog derived from an example from Qt Toolkit (license below (**)) Copyright (C) 2012-2013 Torsten <ttl@justmail.de> Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. Contact: Nokia Corporation (qt-info@nokia.com) This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial Usage ** Licensees holding valid Qt Commercial licenses may use this file in ** accordance with the Qt Commercial License Agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Nokia. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Nokia gives you certain additional ** rights. These rights are described in the Nokia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifdef HAVE_CONFIG_H #include <config.h> #endif #ifdef HAVE_QSCINTILLA #include <QtGui> #include <QIcon> #include "find-dialog.h" find_dialog::find_dialog (QsciScintilla* edit_area, QWidget *p) : QDialog (p) { setWindowTitle (tr ("Find and Replace")); setWindowIcon (QIcon(":/actions/icons/find.png")); _search_label = new QLabel (tr ("Find &what:")); _search_line_edit = new QLineEdit; _search_label->setBuddy (_search_line_edit); _replace_label = new QLabel (tr ("Re&place with:")); _replace_line_edit = new QLineEdit; _replace_label->setBuddy (_replace_line_edit); _case_check_box = new QCheckBox (tr ("Match &case")); _from_start_check_box = new QCheckBox (tr ("Search from &start")); _wrap_check_box = new QCheckBox (tr ("&Wrap while searching")); _wrap_check_box->setChecked(true); _find_next_button = new QPushButton (tr ("&Find Next")); _find_prev_button = new QPushButton (tr ("Find &Previous")); _replace_button = new QPushButton (tr ("&Replace")); _replace_all_button = new QPushButton (tr ("Replace &All")); _more_button = new QPushButton (tr ("&More...")); _more_button->setCheckable (true); _more_button->setAutoDefault (false); _button_box = new QDialogButtonBox (Qt::Vertical); _button_box->addButton (_find_next_button, QDialogButtonBox::ActionRole); _button_box->addButton (_find_prev_button, QDialogButtonBox::ActionRole); _button_box->addButton (_replace_button, QDialogButtonBox::ActionRole); _button_box->addButton (_replace_all_button, QDialogButtonBox::ActionRole); _button_box->addButton (_more_button, QDialogButtonBox::ActionRole); _button_box->addButton (QDialogButtonBox::Close); _extension = new QWidget (this); _whole_words_check_box = new QCheckBox (tr ("&Whole words")); _regex_check_box = new QCheckBox (tr ("Regular E&xpressions")); _backward_check_box = new QCheckBox (tr ("Search &backward")); _search_selection_check_box = new QCheckBox (tr ("Search se&lection")); #ifdef HAVE_QSCI_FINDSELECTION _search_selection_check_box->setCheckable (true); _search_selection_check_box->setEnabled (edit_area->hasSelectedText ()); #else _search_selection_check_box->setCheckable (false); _search_selection_check_box->setEnabled (false); #endif _edit_area = edit_area; connect (_find_next_button, SIGNAL (clicked ()), this, SLOT (find_next ())); connect (_find_prev_button, SIGNAL (clicked ()), this, SLOT (find_prev ())); connect (_more_button, SIGNAL (toggled (bool)), _extension, SLOT (setVisible (bool))); connect (_replace_button, SIGNAL (clicked ()), this, SLOT (replace ())); connect (_replace_all_button, SIGNAL (clicked ()), this, SLOT (replace_all ())); connect (_backward_check_box, SIGNAL (stateChanged (int)), this, SLOT (handle_backward_search_changed (int))); connect (_button_box, SIGNAL (rejected ()), this, SLOT (close ())); connect (_search_line_edit, SIGNAL (textChanged (QString)), this, SLOT (handle_search_text_changed (QString))); #ifdef HAVE_QSCI_FINDSELECTION connect (_edit_area, SIGNAL (copyAvailable (bool)), this, SLOT (handle_selection_changed (bool))); connect (_search_selection_check_box, SIGNAL (stateChanged (int)), this, SLOT (handle_sel_search_changed (int))); #endif QVBoxLayout *extension_layout = new QVBoxLayout (); extension_layout->setMargin (0); extension_layout->addWidget (_whole_words_check_box); extension_layout->addWidget (_backward_check_box); extension_layout->addWidget (_search_selection_check_box); _extension->setLayout (extension_layout); QGridLayout *top_left_layout = new QGridLayout; top_left_layout->addWidget (_search_label, 1, 1); top_left_layout->addWidget (_search_line_edit, 1, 2); top_left_layout->addWidget (_replace_label, 2, 1); top_left_layout->addWidget (_replace_line_edit, 2, 2); QVBoxLayout *left_layout = new QVBoxLayout; left_layout->addLayout (top_left_layout); left_layout->insertStretch (1, 5); left_layout->addWidget (_case_check_box); left_layout->addWidget (_from_start_check_box); left_layout->addWidget (_wrap_check_box); left_layout->addWidget (_regex_check_box); QGridLayout *main_layout = new QGridLayout; main_layout->setSizeConstraint (QLayout::SetFixedSize); main_layout->addLayout (left_layout, 0, 0); main_layout->addWidget (_button_box, 0, 1); main_layout->addWidget (_extension, 1, 0); setLayout (main_layout); _extension->hide (); _find_next_button->setDefault (true); _find_result_available = false; _rep_all = 0; _rep_active = false; // move dialog to side of the parent if there is room on the desktop to do so. QWidget * desktop = QApplication::desktop (); int xp = p->x () + p->frameGeometry ().width (); int yp= p->y (); if (desktop != 0 && sizeHint ().isValid ()) { if (xp + sizeHint ().width () > desktop->width ()) xp = desktop->width () - sizeHint ().width (); } move (xp, yp); } // set text of "search from start" depending on backward search void find_dialog::handle_backward_search_changed (int backward) { if (backward) _from_start_check_box->setText (tr ("Search from end")); else _from_start_check_box->setText (tr ("Search from start")); } // search text has changed: reset the search void find_dialog::handle_search_text_changed (QString) { if (_search_selection_check_box->isChecked ()) _find_result_available = false; } #ifdef HAVE_QSCI_FINDSELECTION void find_dialog::handle_sel_search_changed (int selected) { _from_start_check_box->setEnabled (! selected); _find_result_available = false; } void find_dialog::handle_selection_changed (bool has_selected) { if (_rep_active) return; _search_selection_check_box->setEnabled (has_selected); _find_result_available = false; if (! has_selected) _search_selection_check_box->setChecked (false); } #endif // initialize search text with selected text if this is in one single line void find_dialog::init_search_text () { if (_edit_area->hasSelectedText ()) { int lbeg, lend, cbeg, cend; _edit_area->getSelection(&lbeg,&cbeg,&lend,&cend); if (lbeg == lend) _search_line_edit->setText (_edit_area->selectedText ()); } } void find_dialog::find_next () { find (!_backward_check_box->isChecked ()); } void find_dialog::find_prev () { find (_backward_check_box->isChecked ()); } void find_dialog::find (bool forward) { int line = -1, col = -1; bool do_wrap = _wrap_check_box->isChecked (); bool do_forward = forward; if (_rep_all) { if (_rep_all == 1) { line = 0; col = 0; } do_wrap = false; // The following line is a workaround for the issue that when replacing // a text with a new one with different size within the selection, // the selection is not updated leading to missing or extra replacements. // This does not happen, when the selection is search backwards do_forward = ! _search_selection_check_box->isChecked (); } else { if (_from_start_check_box->isChecked ()) { if (do_forward) { line = 0; col = 0; } else { line = _edit_area->lines () - 1; col = _edit_area->text (line).length () - 1; if (col == -1) col = 0; } } } if (_edit_area) { if (_edit_area->hasSelectedText () && _search_selection_check_box->isChecked ()) { #ifdef HAVE_QSCI_FINDSELECTION if (_find_result_available) _find_result_available = _edit_area->findNext (); else _find_result_available = _edit_area->findFirstInSelection ( _search_line_edit->text (), _regex_check_box->isChecked (), _case_check_box->isChecked (), _whole_words_check_box->isChecked (), do_forward, true #ifdef HAVE_QSCI_VERSION_2_6_0 , true #endif ); #endif } else { _find_result_available = _edit_area->findFirst (_search_line_edit->text (), _regex_check_box->isChecked (), _case_check_box->isChecked (), _whole_words_check_box->isChecked (), do_wrap, do_forward, line,col, true #ifdef HAVE_QSCI_VERSION_2_6_0 , true #endif ); } } if (_find_result_available) _from_start_check_box->setChecked (0); else if (! _rep_all) no_matches_message (); } void find_dialog::do_replace () { _rep_active = true; // changes in selection not made by the user _edit_area->replace (_replace_line_edit->text ()); _rep_active = false; } void find_dialog::replace () { if (_edit_area) { // The following line is a workaround for the issue that when replacing // a text with a new one with different size within the selection, // the selection is not updated leading to missing or extra replacements. // This does not happen, when the selection is search backwards if (_search_selection_check_box->isChecked ()) _backward_check_box->setChecked (true); // do the replace if we have selected text if (_find_result_available && _edit_area->hasSelectedText ()) do_replace (); find_next (); } } void find_dialog::replace_all () { int line, col; if (_edit_area) { _edit_area->getCursorPosition (&line,&col); _rep_all = 1; find_next (); // find first occurence (forward) while (_find_result_available) // while search string is found { do_replace (); _rep_all++; // inc counter find_next (); // find next } QMessageBox msg_box (QMessageBox::Information, tr ("Replace Result"), tr ("%1 items replaced").arg(_rep_all-1), QMessageBox::Ok, this); msg_box.exec (); _rep_all = 0; _find_result_available = false; if (! _search_selection_check_box->isChecked ()) _edit_area->setCursorPosition (line,col); } } void find_dialog::no_matches_message () { QMessageBox msg_box (QMessageBox::Information, tr ("Find Result"), tr ("No more matches found"), QMessageBox::Ok, this); msg_box.exec (); } #endif