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/****************************************************************************
**
** Definition of TQTextCodec class
**
** Created : 981015
**
** Copyright (C) 1998-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the tools module of the TQt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
** included in the packaging of this file. Licensees holding valid TQt
** Commercial licenses may use this file in accordance with the TQt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#ifndef TQTEXTCODEC_H
#define TQTEXTCODEC_H
#ifndef TQT_H
#include "tqstring.h"
#endif // TQT_H
#ifndef TQT_NO_TEXTCODEC
class TQTextCodec;
class TQIODevice;
class TQFont;
class TQ_EXPORT TQTextEncoder {
public:
virtual ~TQTextEncoder();
virtual TQCString fromUnicode(const TQString& uc, int& lenInOut) = 0;
};
class TQ_EXPORT TQTextDecoder {
public:
virtual ~TQTextDecoder();
virtual TQString toUnicode(const char* chars, int len) = 0;
};
class TQ_EXPORT TQTextCodec {
public:
virtual ~TQTextCodec();
#ifndef TQT_NO_CODECS
static TQTextCodec* loadCharmap(TQIODevice*);
static TQTextCodec* loadCharmapFile(TQString filename);
#endif //TQT_NO_CODECS
static TQTextCodec* codecForMib(int mib);
static TQTextCodec* codecForName(const char* hint, int accuracy=0);
static TQTextCodec* codecForContent(const char* chars, int len);
static TQTextCodec* codecForIndex(int i);
static TQTextCodec* codecForLocale();
static void setCodecForLocale(TQTextCodec *c);
static TQTextCodec* codecForTr();
static void setCodecForTr(TQTextCodec *c);
static TQTextCodec* codecForCStrings();
static void setCodecForCStrings(TQTextCodec *c);
static void deleteAllCodecs();
static const char* locale();
virtual const char* name() const = 0;
virtual const char* mimeName() const;
virtual int mibEnum() const = 0;
virtual TQTextDecoder* makeDecoder() const;
virtual TQTextEncoder* makeEncoder() const;
virtual TQString toUnicode(const char* chars, int len) const;
virtual TQCString fromUnicode(const TQString& uc, int& lenInOut) const;
TQCString fromUnicode(const TQString& uc) const;
TQString toUnicode(const TQByteArray&, int len) const;
TQString toUnicode(const TQByteArray&) const;
TQString toUnicode(const TQCString&, int len) const;
TQString toUnicode(const TQCString&) const;
TQString toUnicode(const char* chars) const;
virtual bool canEncode( TQChar ) const;
virtual bool canEncode( const TQString& ) const;
virtual int heuristicContentMatch(const char* chars, int len) const = 0;
virtual int heuristicNameMatch(const char* hint) const;
virtual TQByteArray fromUnicode(const TQString& uc, int from, int len) const;
virtual unsigned short characterFromUnicode(const TQString &str, int pos) const;
protected:
TQTextCodec();
static int simpleHeuristicNameMatch(const char* name, const char* hint);
private:
friend class TQFont;
friend class TQFontEngineXLFD;
void fromUnicodeInternal( const TQChar *in, unsigned short *out, int length );
static TQTextCodec *cftr;
static TQTextCodec *cfcs;
};
inline TQTextCodec* TQTextCodec::codecForTr() { return cftr; }
inline void TQTextCodec::setCodecForTr(TQTextCodec *c) { cftr = c; }
inline TQTextCodec* TQTextCodec::codecForCStrings() { return cfcs; }
inline void TQTextCodec::setCodecForCStrings(TQTextCodec *c) { cfcs = c; }
#endif // TQT_NO_TEXTCODEC
#endif // TQTEXTCODEC_H
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