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/* This file is part of the KDE libraries
Copyright (C) 1999 Lars Knoll (knoll@kde.org)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef KCHARSETS_H
#define KCHARSETS_H
#include <tqstring.h>
#include <tqfont.h>
#include <tqstringlist.h>
#include <tqptrlist.h>
#include "kdelibs_export.h"
class KGlobal;
class KCharsetsPrivate;
class TQTextCodec;
/**
* Charset font and encoder/decoder handling.
*
* This is needed, because Qt's font matching algorithm gives the font
* family a higher priority than the charset. For many applications
* this is not acceptable, since it can totally obscure the output,
* in languages which use non iso-8859-1 charsets.
*
* @author Lars Knoll <knoll@kde.org>
*/
class TDECORE_EXPORT KCharsets
{
friend class KGlobal;
protected:
/** Protected constructor. If you need the kcharsets object, use
KGlobal::charsets() instead.
*/
KCharsets();
public:
/**
* Destructor.
*/
virtual ~KCharsets();
/**
* Provided for compatibility.
* @param name the name of the codec
* @return the TQTextCodec. If the desired codec could not be found,
* it returns a default (Latin-1) codec
*/
TQTextCodec *codecForName(const TQString &name) const;
/**
* Tries to find a TQTextCodec to convert the given encoding from and to
* Unicode. If no codec could be found the latin1 codec will be returned an
* @p ok will be set to false.
* @return the TQTextCodec. If the desired codec could not be found,
* it returns a default (Latin-1) codec
*/
TQTextCodec *codecForName(const TQString &n, bool &ok) const;
/**
* Converts an entity to a character. The string must contain only the
* entity without the trailing ';'.
* @param str the entity
* @return TQChar::null if the entity could not be decoded.
*/
static TQChar fromEntity(const TQString &str);
/**
* Overloaded member function. Tries to find an entity in the
* TQString str.
* @param str the string containing entified
* @param len is a return value, that gives the length of the decoded
* entity.
* @return a decoded entity if one could be found, TQChar::null
* otherwise
*/
static TQChar fromEntity(const TQString &str, int &len);
/**
* Converts a TQChar to an entity. The returned string does already
* contain the leading '&' and the trailing ';'.
* @param ch the char to convert
* @return the entity
*/
static TQString toEntity(const TQChar &ch);
/**
* Scans the given string for entities (like &amp;) and resolves them
* using fromEntity.
* @param text the string containing the entities
* @return the clean string
* @since 3.1
*/
static TQString resolveEntities( const TQString &text );
/**
* Lists all available encodings as names.
* @return the list of all encodings
*/
TQStringList availableEncodingNames();
/**
* Lists the available encoding names together with a more descriptive language.
* @return the list of descriptive encoding names
*/
TQStringList descriptiveEncodingNames();
/**
* Returns the language the encoding is used for.
* @param encoding the encoding for the language
* @return the language of the encoding
*/
TQString languageForEncoding( const TQString &encoding );
/**
* Returns the encoding for a string obtained with descriptiveEncodingNames().
* @param descriptiveName the descriptive name for the encoding
* @return the name of the encoding
*/
TQString encodingForName( const TQString &descriptiveName );
private:
KCharsetsPrivate *d;
};
#endif
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