120ca87015
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
126 lines
3.8 KiB
C++
126 lines
3.8 KiB
C++
/***************************************************************************
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* Copyright (c) 2005 Werner Mayer <werner.wm.mayer@gmx.de> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "regexpdialog.h"
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#include <qcheckbox.h>
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#include <qlabel.h>
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#include <qlineedit.h>
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#include <qmessagebox.h>
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#include <qtextedit.h>
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RegExpDialog::RegExpDialog( QWidget* parent, const char* name, bool modal, WFlags f )
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: RegExpDialogBase( parent, name, modal, f )
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{
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rxhilighter = new RegExpSyntaxHighlighter( textEdit1 );
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}
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RegExpDialog::~RegExpDialog()
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{
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}
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void RegExpDialog::performRegExp()
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{
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QString txt = lineEdit1->text();
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if ( txt.isEmpty() )
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{
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rxhilighter->resethighlight();
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return;
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}
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QRegExp rx(txt);
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rx.setCaseSensitive( checkBox1->isChecked() );
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rx.setWildcard( checkBox2->isChecked() );
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rx.setMinimal( checkBox3->isChecked() );
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// evaluate regular expression
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textLabel4->setText( rx.errorString() );
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if ( !rx.isValid() )
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{
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rxhilighter->resethighlight();
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return; // invalid expression
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}
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rxhilighter->highlightMatchedText( rx );
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}
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void RegExpDialog::about()
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{
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QString msg = "This is a tool for playing around with regular expressions.";
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QMessageBox::information(this, "RegExp Explorer", msg);
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}
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// -------------------------------------------------------------
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RegExpSyntaxHighlighter::RegExpSyntaxHighlighter ( QTextEdit * textEdit )
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: QSyntaxHighlighter( textEdit )
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{
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}
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RegExpSyntaxHighlighter::~RegExpSyntaxHighlighter()
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{
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}
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int RegExpSyntaxHighlighter::highlightParagraph ( const QString & text, int /*endStateOfLastPara*/ )
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{
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// reset format
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QFont font = textEdit()->currentFont();
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font.setBold( false );
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setFormat(0, text.length(), font, Qt::black );
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if ( regexp.isEmpty() )
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return 0; // empty regular expression
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int pos = 0;
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int last = -1;
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font.setBold( true );
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while ( (pos = regexp.search(text, pos)) != -1 )
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{
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if ( last == pos )
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break;
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QString sub = text.mid( pos, regexp.matchedLength());
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if ( !sub.isEmpty() )
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{
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setFormat(pos, sub.length(), font, Qt::blue );
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}
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pos += regexp.matchedLength();
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last=pos;
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}
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return 0;
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}
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void RegExpSyntaxHighlighter::highlightMatchedText( const QRegExp& rx )
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{
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regexp = rx;
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rehighlight();
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}
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void RegExpSyntaxHighlighter::resethighlight()
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{
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regexp.setPattern("");
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rehighlight();
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}
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