office-gobmx/sw/inc/breakit.hxx
Eike Rathke d5b7bcbd26 avoid unnecessary LanguageTag conversions
Change-Id: Ic85bfad73814e9d2a28efc368526f3c1b5a84ad1
2012-11-27 14:41:39 +01:00

143 lines
5.3 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#ifndef _BREAKIT_HXX
#define _BREAKIT_HXX
#include <boost/noncopyable.hpp>
#include <com/sun/star/uno/Reference.h>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/i18n/XBreakIterator.hpp>
#include <com/sun/star/i18n/XScriptTypeDetector.hpp>
#include <com/sun/star/i18n/ForbiddenCharacters.hpp>
#include <i18npool/languagetag.hxx>
#include <swdllapi.h>
/*************************************************************************
* class SwBreakIt
*************************************************************************/
class SW_DLLPUBLIC SwBreakIt : private ::boost::noncopyable
{
com::sun::star::uno::Reference< com::sun::star::uno::XComponentContext > m_xContext;
mutable com::sun::star::uno::Reference< com::sun::star::i18n::XBreakIterator > xBreak;
LanguageTag * m_pLanguageTag; ///< language tag of the current locale
com::sun::star::i18n::ForbiddenCharacters * m_pForbidden;
LanguageType aForbiddenLang; ///< language of the current forbiddenChar struct
void _GetLocale( const LanguageType aLang );
void _GetLocale( const LanguageTag& rLanguageTag );
void _GetForbidden( const LanguageType aLang );
void createBreakIterator() const;
// private (see @ _Create, _Delete).
explicit SwBreakIt(
const com::sun::star::uno::Reference< com::sun::star::uno::XComponentContext > & rxContext);
~SwBreakIt();
public:
// private (see @ source/core/bastyp/init.cxx).
static void _Create(
const com::sun::star::uno::Reference< com::sun::star::uno::XComponentContext > & rxContext);
static void _Delete();
public:
static SwBreakIt * Get();
com::sun::star::uno::Reference< com::sun::star::i18n::XBreakIterator > GetBreakIter()
{
createBreakIterator();
return xBreak;
}
const com::sun::star::lang::Locale& GetLocale( const LanguageType aLang )
{
if( !m_pLanguageTag || m_pLanguageTag->getLanguageType() != aLang )
_GetLocale( aLang );
return m_pLanguageTag->getLocale();
}
const com::sun::star::lang::Locale& GetLocale( const LanguageTag& rLanguageTag )
{
// Use LanguageType comparison instead of LanguageTag::operator!=()
// because here the LanguageTag is already a known LanguageType value
// assigned, so LanguageTag does not need to convert to BCP47 for
// comparison.
if( !m_pLanguageTag || m_pLanguageTag->getLanguageType() != rLanguageTag.getLanguageType() )
_GetLocale( rLanguageTag );
return m_pLanguageTag->getLocale();
}
const LanguageTag& GetLanguageTag( const LanguageType aLang )
{
if( !m_pLanguageTag || m_pLanguageTag->getLanguageType() != aLang )
_GetLocale( aLang );
return *m_pLanguageTag;
}
const LanguageTag& GetLanguageTag( const LanguageTag& rLanguageTag )
{
// Use LanguageType comparison instead of LanguageTag::operator!=()
// because here the LanguageTag is already a known LanguageType value
// assigned, so LanguageTag does not need to convert to BCP47 for
// comparison.
if( !m_pLanguageTag || m_pLanguageTag->getLanguageType() != rLanguageTag.getLanguageType() )
_GetLocale( rLanguageTag );
return *m_pLanguageTag;
}
const com::sun::star::i18n::ForbiddenCharacters& GetForbidden( const LanguageType aLang )
{
if( !m_pForbidden || aForbiddenLang != aLang )
_GetForbidden( aLang );
return *m_pForbidden;
}
sal_uInt16 GetRealScriptOfText( const rtl::OUString& rTxt, sal_Int32 nPos ) const;
sal_uInt16 GetAllScriptsOfText( const rtl::OUString& rTxt ) const;
sal_Int32 getGraphemeCount(const rtl::OUString& rStr,
sal_Int32 nStart, sal_Int32 nEnd) const;
sal_Int32 getGraphemeCount(const rtl::OUString& rStr) const
{
return getGraphemeCount(rStr, 0, rStr.getLength());
}
};
#define SW_BREAKITER() SwBreakIt::Get()
// @@@ backward compatibility @@@
SW_DLLPUBLIC extern SwBreakIt* pBreakIt;
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */