/****************************************************************************
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
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** This file is part of the Qt3Support module of the Qt Toolkit.
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** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
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** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** 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
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** $QT_END_LICENSE$
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****************************************************************************/

#ifndef Q3SYNTAXHIGHLIGHTER_H
#define Q3SYNTAXHIGHLIGHTER_H

#include <QtGui/qfont.h>
#include <QtGui/qcolor.h>
#include <QtCore/qstring.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

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;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // Q3SYNTAXHIGHLIGHTER_H
