sw/inc/breakit.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef _BREAKIT_HXX
  21 #define _BREAKIT_HXX
  22
  23 #include <boost/noncopyable.hpp>
  24 #include <com/sun/star/uno/Reference.h>
  25 #include <com/sun/star/uno/XComponentContext.hpp>
  26 #include <com/sun/star/i18n/XBreakIterator.hpp>
  27 #include <com/sun/star/i18n/XScriptTypeDetector.hpp>
  28 #include <com/sun/star/i18n/ForbiddenCharacters.hpp>
  29 #include <i18nlangtag/languagetag.hxx>
  30 #include <swdllapi.h>
  31
  32 /*************************************************************************
  33  *                      class SwBreakIt
  34  *************************************************************************/
  35
  36
  37 class SW_DLLPUBLIC SwBreakIt : private ::boost::noncopyable
  38 {
  39     com::sun::star::uno::Reference< com::sun::star::uno::XComponentContext > m_xContext;
  40     mutable com::sun::star::uno::Reference< com::sun::star::i18n::XBreakIterator > xBreak;
  41
  42     LanguageTag * m_pLanguageTag;   ///< language tag of the current locale
  43     com::sun::star::i18n::ForbiddenCharacters * m_pForbidden;
  44
  45     LanguageType aForbiddenLang; ///< language of the current forbiddenChar struct
  46
  47     void _GetLocale( const LanguageType aLang );
  48     void _GetLocale( const LanguageTag& rLanguageTag );
  49     void _GetForbidden( const LanguageType  aLang );
  50
  51     void createBreakIterator() const;
  52
  53     // private (see @ _Create, _Delete).
  54     explicit SwBreakIt(
  55         const com::sun::star::uno::Reference< com::sun::star::uno::XComponentContext > & rxContext);
  56     ~SwBreakIt();
  57
  58 public:
  59     // private (see @ source/core/bastyp/init.cxx).
  60     static void _Create(
  61         const com::sun::star::uno::Reference< com::sun::star::uno::XComponentContext > & rxContext);
  62     static void _Delete();
  63
  64 public:
  65     static SwBreakIt * Get();
  66
  67     com::sun::star::uno::Reference< com::sun::star::i18n::XBreakIterator > GetBreakIter()
  68     {
  69         createBreakIterator();
  70         return xBreak;
  71     }
  72
  73     const com::sun::star::lang::Locale& GetLocale( const LanguageType aLang )
  74     {
  75         if( !m_pLanguageTag || m_pLanguageTag->getLanguageType() != aLang )
  76             _GetLocale( aLang );
  77         return m_pLanguageTag->getLocale();
  78     }
  79
  80     const com::sun::star::lang::Locale& GetLocale( const LanguageTag& rLanguageTag )
  81     {
  82         // Use LanguageType comparison instead of LanguageTag::operator!=()
  83         // because here the LanguageTag is already a known LanguageType value
  84         // assigned, so LanguageTag does not need to convert to BCP47 for
  85         // comparison.
  86         if( !m_pLanguageTag || m_pLanguageTag->getLanguageType() != rLanguageTag.getLanguageType() )
  87             _GetLocale( rLanguageTag );
  88         return m_pLanguageTag->getLocale();
  89     }
  90
  91     const LanguageTag& GetLanguageTag( const LanguageType aLang )
  92     {
  93         if( !m_pLanguageTag || m_pLanguageTag->getLanguageType() != aLang )
  94             _GetLocale( aLang );
  95         return *m_pLanguageTag;
  96     }
  97
  98     const LanguageTag& GetLanguageTag( const LanguageTag& rLanguageTag )
  99     {
 100         // Use LanguageType comparison instead of LanguageTag::operator!=()
 101         // because here the LanguageTag is already a known LanguageType value
 102         // assigned, so LanguageTag does not need to convert to BCP47 for
 103         // comparison.
 104         if( !m_pLanguageTag || m_pLanguageTag->getLanguageType() != rLanguageTag.getLanguageType() )
 105             _GetLocale( rLanguageTag );
 106         return *m_pLanguageTag;
 107     }
 108
 109     const com::sun::star::i18n::ForbiddenCharacters& GetForbidden( const LanguageType aLang )
 110     {
 111         if( !m_pForbidden || aForbiddenLang != aLang )
 112             _GetForbidden( aLang );
 113         return *m_pForbidden;
 114     }
 115
 116     sal_uInt16 GetRealScriptOfText( const OUString& rTxt, sal_Int32 nPos ) const;
 117     sal_uInt16 GetAllScriptsOfText( const OUString& rTxt ) const;
 118
 119     sal_Int32 getGraphemeCount(const OUString& rStr,
 120         sal_Int32 nStart, sal_Int32 nEnd) const;
 121     sal_Int32 getGraphemeCount(const OUString& rStr) const
 122     {
 123         return getGraphemeCount(rStr, 0, rStr.getLength());
 124     }
 125 };
 126
 127 #define SW_BREAKITER()  SwBreakIt::Get()
 128
 129 // @@@ backward compatibility @@@
 130 SW_DLLPUBLIC extern SwBreakIt* g_pBreakIt;
 131
 132 #endif
 133
 134 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */