/****************************************************************************

** 

**

** Definition of QTextCodec class

**

** Created : 981015

**

** Copyright (C) 1998-2000 Trolltech AS.  All rights reserved.

**

** This file is part of the tools module of the Qt GUI Toolkit.

**

** This file may be distributed under the terms of the Q Public License

** as defined by Trolltech AS of Norway and appearing in the file

** LICENSE.QPL included in the packaging of this file.

**

** This file may be distributed and/or modified under the terms of the

** GNU General Public License version 2 as published by the Free Software

** Foundation and appearing in the file LICENSE.GPL included in the

** packaging of this file.

**

** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition

** licenses may use this file in accordance with the Qt Commercial License

** Agreement provided with the Software.

**

** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE

** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

**

** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for

**   information about Qt Commercial License Agreements.

** See http://www.trolltech.com/qpl/ for QPL licensing information.

** See http://www.trolltech.com/gpl/ for GPL licensing information.

**

** Contact info@trolltech.com if any conditions of this licensing are

** not clear to you.

**

**********************************************************************/

#ifndef QTEXTCODEC_H

#define QTEXTCODEC_H

#ifndef QT_H

#include "qstring.h"

#endif // QT_H

#ifndef QT_NO_TEXTCODEC

class QTextCodec;

class QIODevice;

class Q_EXPORT QTextEncoder {

public:

    virtual ~QTextEncoder();

    virtual QCString fromUnicode(const QString& uc, int& lenInOut) = 0;

};

class Q_EXPORT QTextDecoder {

public:

    virtual ~QTextDecoder();

    virtual QString toUnicode(const char* chars, int len) = 0;

};

class Q_EXPORT QTextCodec {

public:

    virtual ~QTextCodec();

#ifndef QT_NO_CODECS

    static QTextCodec* loadCharmap(QIODevice*);

    static QTextCodec* loadCharmapFile(QString filename);

#endif

    static QTextCodec* codecForMib(int mib);

    static QTextCodec* codecForName(const char* hint, int accuracy=0);

    static QTextCodec* codecForContent(const char* chars, int len);

    static QTextCodec* codecForIndex(int i);

    static QTextCodec* codecForLocale();

    static void deleteAllCodecs();

    static const char* locale();

    virtual const char* name() const = 0;

    virtual int mibEnum() const = 0;

    virtual QTextDecoder* makeDecoder() const;

    virtual QTextEncoder* makeEncoder() const;

    virtual QString toUnicode(const char* chars, int len) const;

    virtual QCString fromUnicode(const QString& uc, int& lenInOut) const;

    QCString fromUnicode(const QString& uc) const;

    QString toUnicode(const QByteArray&, int len) const;

    QString toUnicode(const QByteArray&) const;

    QString toUnicode(const char* chars) const;

    virtual bool canEncode( QChar ) const;

    virtual bool canEncode( const QString& ) const;

    virtual int heuristicContentMatch(const char* chars, int len) const = 0;

    virtual int heuristicNameMatch(const char* hint) const;

protected:

    QTextCodec();

    static int simpleHeuristicNameMatch(const char* name, const char* hint);

};

#endif // QT_NO_TEXTCODEC

#endif // QTEXTCODEC_H