/*************************************************************************
 *
 *  $RCSfile: transliterationwrapper.hxx,v $
 *
 *  $Revision: 1.8 $
 *
 *  last change: $Author: er $ $Date: 2001/08/08 14:23:21 $
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 by Sun Microsystems, Inc.
 *  901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1, as published by the Free Software Foundation.
 *
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *  MA  02111-1307  USA
 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (the "License"); You may not use this file
 *  except in compliance with the License. You may obtain a copy of the
 *  License at http://www.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
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 *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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 *  All Rights Reserved.
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 *
 ************************************************************************/

#ifndef _UNOTOOLS_TRANSLITERATIONWRAPPER_HXX
#define _UNOTOOLS_TRANSLITERATIONWRAPPER_HXX

#ifndef _STRING_HXX
#include <tools/string.hxx>
#endif
#ifndef _SOLAR_H
#include <tools/solar.h>
#endif
#ifndef _COM_SUN_STAR_I18N_XTRANSLITERATION_HPP_
#include <com/sun/star/i18n/XTransliteration.hpp>
#endif

namespace com { namespace sun { namespace star {
	namespace lang {
		class XMultiServiceFactory;
	}
}}}

namespace utl
{

class TransliterationWrapper
{
	::com::sun::star::uno::Reference<
					::com::sun::star::lang::XMultiServiceFactory > xSMgr;
	::com::sun::star::uno::Reference<
					::com::sun::star::i18n::XTransliteration > xTrans;
	::com::sun::star::lang::Locale aLocale;
	sal_uInt32 nType;
	sal_uInt16 nLanguage;
    mutable sal_Bool bFirstCall;

								// not implemented, prevent usage
	TransliterationWrapper( const TransliterationWrapper& );
	TransliterationWrapper&	operator=( const TransliterationWrapper& );

    void loadModuleImpl() const;
    void setLanguageLocaleImpl( sal_uInt16 nLang );

public:
	TransliterationWrapper( const ::com::sun::star::uno::Reference<
					::com::sun::star::lang::XMultiServiceFactory > & xSF,
					sal_uInt32 nType );

	~TransliterationWrapper();

	// get current Locale / Language
	const ::com::sun::star::lang::Locale& getLocale() const	{ return aLocale;}
	sal_uInt16 getLanguage() const { return nLanguage; }

	sal_uInt32 getType() const { return nType; }

	sal_Bool needLanguageForTheMode() const;

    /** set a new language and load the corresponding transliteration module if
        needed for the mode set with nType in the ctor */
    void loadModuleIfNeeded( sal_uInt16 nLang );

	// Wrapper implementations of class Transliteration
	String transliterate( const String& rStr, sal_uInt16 nLanguage,
						xub_StrLen nStart, xub_StrLen nEnd,
						::com::sun::star::uno::Sequence <long>* pOffset );

    /** If two strings are equal per this transliteration.
        Returns the number of matched code points in any case, even if strings
        are not equal, for example:
        equals( "a", 0, 1, nMatch1, "aaa", 0, 3, nMatch2 )
        returns false and nMatch:=1 and nMatch2:=1
        equals( "aab", 0, 3, nMatch1, "aaa", 0, 3, nMatch2 )
        returns false and nMatch:=2 and nMatch2:=2
     */
    sal_Bool equals(
        const String& rStr1, sal_Int32 nPos1, sal_Int32 nCount1, sal_Int32& nMatch1,
        const String& rStr2, sal_Int32 nPos2, sal_Int32 nCount2, sal_Int32& nMatch2 ) const;

    sal_Int32 compareSubstring(
        const String& rStr1, sal_Int32 nOff1, sal_Int32 nLen1,
        const String& rStr2, sal_Int32 nOff2, sal_Int32 nLen2 ) const;

    sal_Int32 compareString( const String& rStr1, const String& rStr2 ) const;


    // helpers

    /** If two strings are really equal as per this translation, and not just
        one string is matching the start of the other. Use this method instead
        of compareString()==0 because it is much faster.
     */
    sal_Bool isEqual( const String& rStr1, const String& rStr2 ) const;

    /** If string rStr1 matches the start of string rStr2, i.e. "a" in "aaa"
     */
    sal_Bool isMatch( const String& rStr1, const String& rStr2 ) const;

};

// ............................................................................
}       // namespace utl
// ............................................................................

#endif
