/****************************************************************************
**
** Copyright (C) 1992-2005 Trolltech AS. All rights reserved.
**
** This file is part of the Qt3Support module of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 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 GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#ifndef Q3SYNTAXHIGHLIGHTER_H
#define Q3SYNTAXHIGHLIGHTER_H

#include "QtGui/qfont.h"
#include "QtGui/qcolor.h"
#include "QtCore/qstring.h"

QT_MODULE(Qt3SupportLight)

class Q3TextEdit;
class Q3SyntaxHighlighterInternal;
class Q3SyntaxHighlighterPrivate;
class Q3TextParagraph;

class Q_COMPAT_EXPORT Q3SyntaxHighlighter
{
    friend class Q3SyntaxHighlighterInternal;

public:
    Q3SyntaxHighlighter(Q3TextEdit *textEdit);
    virtual ~Q3SyntaxHighlighter();

    virtual int highlightParagraph(const QString &text, int endStateOfLastPara) = 0;

    void setFormat(int start, int count, const QFont &font, const QColor &color);
    void setFormat(int start, int count, const QColor &color);
    void setFormat(int start, int count, const QFont &font);
    Q3TextEdit *textEdit() const { return edit; }

    void rehighlight();

    int currentParagraph() const;

private:
    Q3TextParagraph *para;
    Q3TextEdit *edit;
    Q3SyntaxHighlighterPrivate *d;

};

#endif
