insilmaril@435: /****************************************************************************
insilmaril@435: **
insilmaril@435: ** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
insilmaril@435: **
insilmaril@435: ** This file is part of the example classes of the Qt Toolkit.
insilmaril@435: **
insilmaril@435: ** This file may be used under the terms of the GNU General Public
insilmaril@435: ** License version 2.0 as published by the Free Software Foundation
insilmaril@435: ** and appearing in the file LICENSE.GPL included in the packaging of
insilmaril@435: ** this file.  Please review the following information to ensure GNU
insilmaril@435: ** General Public Licensing requirements will be met:
insilmaril@435: ** http://www.trolltech.com/products/qt/opensource.html
insilmaril@435: **
insilmaril@435: ** If you are unsure which license is appropriate for your use, please
insilmaril@435: ** review the following information:
insilmaril@435: ** http://www.trolltech.com/products/qt/licensing.html or contact the
insilmaril@435: ** sales department at sales@trolltech.com.
insilmaril@435: **
insilmaril@435: ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
insilmaril@435: ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
insilmaril@435: **
insilmaril@435: ****************************************************************************/
insilmaril@435: 
insilmaril@435: // highlighting rules have been adapted by Uwe Drechsel to match vym syntax
insilmaril@435: 
insilmaril@435: 
insilmaril@435: #include <QtGui>
insilmaril@435: 
insilmaril@435: #include "highlighter.h"
insilmaril@435: 
insilmaril@435: Highlighter::Highlighter(QTextDocument *parent)
insilmaril@435:     : QSyntaxHighlighter(parent)
insilmaril@435: {
insilmaril@435:     HighlightingRule rule;
insilmaril@435: 
insilmaril@435:     keywordFormat.setForeground(Qt::darkBlue);
insilmaril@435:     keywordFormat.setFontWeight(QFont::Bold);
insilmaril@435:     QStringList keywordPatterns;
insilmaril@435:     keywordPatterns << "\\baddBranch\\b" << "\\baddBranchBefore\\b" 
insilmaril@435:                     << "\\baddMapInsert\\b" << "\\baddMapReplace\\b"
insilmaril@435:                     << "\\bcolorBranch\\b" << "\\bcolorSubtree\\b"
insilmaril@435:                     << "\\bcut\\b" << "\\bdelete\\b" 
insilmaril@435: 					<< "\\bdeletepKeepChilds\\b" << "\\bdeletepChilds\\b"
insilmaril@435: 					<< "\\blinkTo\\b" << "\\bloadImage\\b"
insilmaril@435: 					<< "\\bmoveBranchUp\\b" << "\\bmoveBranchDown\\b"
insilmaril@435: 					<< "\\bmove\\b" << "\\bmoveRel\\b"
insilmaril@435: 					<< "\\bpaste\\b" 
insilmaril@435: 					<< "\\bsaveImage\\b" 
insilmaril@435: 					<< "\\bscroll\\b" 
insilmaril@435: 					<< "\\bselect\\b" << "\\bselectLastBranch\\b" << "\\bselectLastImage\\b"
insilmaril@435: 					<< "\\bsetMapAuthor\\b" 
insilmaril@435: 					<< "\\bsetMapComment\\b" 
insilmaril@435: 					<< "\\bsetMapBackgroundColor\\b" 
insilmaril@435: 					<< "\\bsetMapDefLinkColor\\b" 
insilmaril@435: 					<< "\\bsetMapDefLinkStyle\\b" 
insilmaril@435: 					<< "\\bsetHeading\\b" 
insilmaril@435: 					<< "\\bsetHideExport\\b" 
insilmaril@435: 					<< "\\bsetIncludeImagesHorizontally\\b" 
insilmaril@435: 					<< "\\bsetIncludeImagesVertically\\b" 
insilmaril@435: 					<< "\\bsetURL\\b" 
insilmaril@435: 					<< "\\bsetVymLink\\b" 
insilmaril@435: 					<< "\\bsetFlag\\b" 
insilmaril@435: 					<< "\\bunscroll\\b" 
insilmaril@435: 					<< "\\bunsetFlag\\b" 
insilmaril@435: 					;
insilmaril@435:     foreach (QString pattern, keywordPatterns) {
insilmaril@435:         rule.pattern = QRegExp(pattern);
insilmaril@435:         rule.format = keywordFormat;
insilmaril@435:         highlightingRules.append(rule);
insilmaril@435:     }
insilmaril@435: 
insilmaril@435: 	// QT keywords
insilmaril@435: 	/*
insilmaril@435:     classFormat.setFontWeight(QFont::Bold);
insilmaril@435:     classFormat.setForeground(Qt::darkMagenta);
insilmaril@435:     rule.pattern = QRegExp("\\bQ[A-Za-z]+\\b");
insilmaril@435:     rule.format = classFormat;
insilmaril@435:     highlightingRules.append(rule);
insilmaril@435: 	*/
insilmaril@435: 
insilmaril@435: 	// Single line comments
insilmaril@435:     singleLineCommentFormat.setForeground(Qt::red);
insilmaril@435:     rule.pattern = QRegExp("#[^\n]*");
insilmaril@435:     rule.format = singleLineCommentFormat;
insilmaril@435:     highlightingRules.append(rule);
insilmaril@435: 
insilmaril@435: 	// Single line comments
insilmaril@435:     multiLineCommentFormat.setForeground(Qt::red);
insilmaril@435:     commentStartExpression = QRegExp("/\\*");
insilmaril@435:     commentEndExpression = QRegExp("\\*/");
insilmaril@435: 
insilmaril@435: 	// Quotations
insilmaril@435:     quotationFormat.setForeground(Qt::darkGreen);
insilmaril@435:     rule.pattern = QRegExp("\".*\"");
insilmaril@435:     rule.format = quotationFormat;
insilmaril@435:     highlightingRules.append(rule);
insilmaril@435: 
insilmaril@435:     QStringList valuePatterns;
insilmaril@435:     valuePatterns << "\\btrue\\b" << "\\bfalse\\b";
insilmaril@435:     foreach (QString pattern, valuePatterns) {
insilmaril@435:         rule.pattern = QRegExp(pattern);
insilmaril@435:         rule.format = quotationFormat;
insilmaril@435:         highlightingRules.append(rule);
insilmaril@435:     }
insilmaril@435: 
insilmaril@435: 
insilmaril@435: 
insilmaril@435: 	// Funtions
insilmaril@435: 	/*
insilmaril@435:     functionFormat.setFontItalic(true);
insilmaril@435:     functionFormat.setForeground(Qt::blue);
insilmaril@435:     rule.pattern = QRegExp("\\b[A-Za-z0-9_]+(?=\\()");
insilmaril@435:     rule.format = functionFormat;
insilmaril@435:     highlightingRules.append(rule);
insilmaril@435: 	*/
insilmaril@435: 
insilmaril@435: }
insilmaril@435: 
insilmaril@435: void Highlighter::highlightBlock(const QString &text)
insilmaril@435: {
insilmaril@435:     foreach (HighlightingRule rule, highlightingRules) {
insilmaril@435:         QRegExp expression(rule.pattern);
insilmaril@435:         int index = text.indexOf(expression);
insilmaril@435:         while (index >= 0) {
insilmaril@435:             int length = expression.matchedLength();
insilmaril@435:             setFormat(index, length, rule.format);
insilmaril@435:             index = text.indexOf(expression, index + length);
insilmaril@435:         }
insilmaril@435:     }
insilmaril@435:     setCurrentBlockState(0);
insilmaril@435: 
insilmaril@435:     int startIndex = 0;
insilmaril@435:     if (previousBlockState() != 1)
insilmaril@435:         startIndex = text.indexOf(commentStartExpression);
insilmaril@435: 
insilmaril@435:     while (startIndex >= 0) {
insilmaril@435:         int endIndex = text.indexOf(commentEndExpression, startIndex);
insilmaril@435:         int commentLength;
insilmaril@435:         if (endIndex == -1) {
insilmaril@435:             setCurrentBlockState(1);
insilmaril@435:             commentLength = text.length() - startIndex;
insilmaril@435:         } else {
insilmaril@435:             commentLength = endIndex - startIndex
insilmaril@435:                             + commentEndExpression.matchedLength();
insilmaril@435:         }
insilmaril@435:         setFormat(startIndex, commentLength, multiLineCommentFormat);
insilmaril@435:         startIndex = text.indexOf(commentStartExpression,
insilmaril@435:                                                 startIndex + commentLength);
insilmaril@435:     }
insilmaril@435: }