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/**********************************************************************
** Copyright (C) 2000-2008 Trolltech ASA.  All rights reserved.
**
** This file is part of TQt Linguist.
**
** 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 retquirements 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.
**
** 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 METATRANSLATOR_H
#define METATRANSLATOR_H

#include <qmap.h>
#include <qstring.h>
#include <qtranslator.h>
#include <qvaluelist.h>

class TQTextCodec;

class MetaTranslatorMessage : public TQTranslatorMessage
{
public:
    enum Type { Unfinished, Finished, Obsolete };

    MetaTranslatorMessage();
    MetaTranslatorMessage( const char *context, const char *sourceText,
			   const char *comment,
			   const TQString& translation = TQString::null,
			   bool utf8 = FALSE, Type type = Unfinished );
    MetaTranslatorMessage( const MetaTranslatorMessage& m );

    MetaTranslatorMessage& operator=( const MetaTranslatorMessage& m );

    void setType( Type nt ) { ty = nt; }
    Type type() const { return ty; }
    bool utf8() const { return utfeight; }

    bool operator==( const MetaTranslatorMessage& m ) const;
    bool operator!=( const MetaTranslatorMessage& m ) const
    { return !operator==( m ); }
    bool operator<( const MetaTranslatorMessage& m ) const;
    bool operator<=( const MetaTranslatorMessage& m )
    { return !operator>( m ); }
    bool operator>( const MetaTranslatorMessage& m ) const
    { return this->operator<( m ); }
    bool operator>=( const MetaTranslatorMessage& m ) const
    { return !operator<( m ); }

private:
    bool utfeight;
    Type ty;
};

class MetaTranslator
{
public:
    MetaTranslator();
    MetaTranslator( const MetaTranslator& tor );

    MetaTranslator& operator=( const MetaTranslator& tor );

    void clear();
    bool load( const TQString& filename );
    bool save( const TQString& filename ) const;
    bool release( const TQString& filename, bool verbose = FALSE,
		  TQTranslator::SaveMode mode = TQTranslator::Stripped ) const;

    bool contains( const char *context, const char *sourceText,
		   const char *comment ) const;
    void insert( const MetaTranslatorMessage& m );

    void stripObsoleteMessages();
    void stripEmptyContexts();

    void setCodec( const char *name );
    TQString toUnicode( const char *str, bool utf8 ) const;

    TQValueList<MetaTranslatorMessage> messages() const;
    TQValueList<MetaTranslatorMessage> translatedMessages() const;

private:
    typedef TQMap<MetaTranslatorMessage, int> TMM;
    typedef TQMap<int, MetaTranslatorMessage> TMMInv;

    TMM mm;
    TQCString codecName;
    TQTextCodec *codec;
};

/*
  This is a tquick hack. The proper way to handle this would be
  to extend MetaTranslator's interface.
*/
#define ContextComment "QT_LINGUIST_INTERNAL_CONTEXT_COMMENT"

#endif