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.
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   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 INCLUDED_SW_INC_BREAKIT_HXX
  21 #define INCLUDED_SW_INC_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 enum class SvtScriptType;
  33
  34 class SW_DLLPUBLIC SwBreakIt : private ::boost::noncopyable
  35 {
  36     com::sun::star::uno::Reference< com::sun::star::uno::XComponentContext > m_xContext;
  37     mutable com::sun::star::uno::Reference< com::sun::star::i18n::XBreakIterator > xBreak;
  38
  39     LanguageTag * m_pLanguageTag;   ///< language tag of the current locale
  40     com::sun::star::i18n::ForbiddenCharacters * m_pForbidden;
  41
  42     LanguageType aForbiddenLang; ///< language of the current forbiddenChar struct
  43
  44     void _GetLocale( const LanguageType aLang );
  45     void _GetLocale( const LanguageTag& rLanguageTag );
  46     void _GetForbidden( const LanguageType  aLang );
  47
  48     void createBreakIterator() const;
  49
  50     // private (see @ _Create, _Delete).
  51     explicit SwBreakIt(
  52         const com::sun::star::uno::Reference< com::sun::star::uno::XComponentContext > & rxContext);
  53     ~SwBreakIt();
  54
  55 public:
  56     // private (see @ source/core/bastyp/init.cxx).
  57     static void _Create(
  58         const com::sun::star::uno::Reference< com::sun::star::uno::XComponentContext > & rxContext);
  59     static void _Delete();
  60
  61 public:
  62     static SwBreakIt * Get();
  63
  64     com::sun::star::uno::Reference< com::sun::star::i18n::XBreakIterator > GetBreakIter()
  65     {
  66         createBreakIterator();
  67         return xBreak;
  68     }
  69
  70     const com::sun::star::lang::Locale& GetLocale( const LanguageType aLang )
  71     {
  72         if( !m_pLanguageTag || m_pLanguageTag->getLanguageType() != aLang )
  73             _GetLocale( aLang );
  74         return m_pLanguageTag->getLocale();
  75     }
  76
  77     const com::sun::star::lang::Locale& GetLocale( const LanguageTag& rLanguageTag )
  78     {
  79         // Use LanguageType comparison instead of LanguageTag::operator!=()
  80         // because here the LanguageTag is already a known LanguageType value
  81         // assigned, so LanguageTag does not need to convert to BCP47 for
  82         // comparison.
  83         if( !m_pLanguageTag || m_pLanguageTag->getLanguageType() != rLanguageTag.getLanguageType() )
  84             _GetLocale( rLanguageTag );
  85         return m_pLanguageTag->getLocale();
  86     }
  87
  88     const LanguageTag& GetLanguageTag( const LanguageType aLang )
  89     {
  90         if( !m_pLanguageTag || m_pLanguageTag->getLanguageType() != aLang )
  91             _GetLocale( aLang );
  92         return *m_pLanguageTag;
  93     }
  94
  95     const LanguageTag& GetLanguageTag( const LanguageTag& rLanguageTag )
  96     {
  97         // Use LanguageType comparison instead of LanguageTag::operator!=()
  98         // because here the LanguageTag is already a known LanguageType value
  99         // assigned, so LanguageTag does not need to convert to BCP47 for
 100         // comparison.
 101         if( !m_pLanguageTag || m_pLanguageTag->getLanguageType() != rLanguageTag.getLanguageType() )
 102             _GetLocale( rLanguageTag );
 103         return *m_pLanguageTag;
 104     }
 105
 106     const com::sun::star::i18n::ForbiddenCharacters& GetForbidden( const LanguageType aLang )
 107     {
 108         if( !m_pForbidden || aForbiddenLang != aLang )
 109             _GetForbidden( aLang );
 110         return *m_pForbidden;
 111     }
 112
 113     sal_uInt16 GetRealScriptOfText( const OUString& rText, sal_Int32 nPos ) const;
 114     SvtScriptType GetAllScriptsOfText( const OUString& rText ) const;
 115
 116     sal_Int32 getGraphemeCount(const OUString& rStr,
 117         sal_Int32 nStart, sal_Int32 nEnd) const;
 118     sal_Int32 getGraphemeCount(const OUString& rStr) const
 119     {
 120         return getGraphemeCount(rStr, 0, rStr.getLength());
 121     }
 122 };
 123
 124 #define SW_BREAKITER()  SwBreakIt::Get()
 125
 126 // @@@ backward compatibility @@@
 127 SW_DLLPUBLIC extern SwBreakIt* g_pBreakIt;
 128
 129 #endif
 130
 131 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */