breakit.hxx

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#ifndef INCLUDED_SW_INC_BREAKIT_HXX
#define INCLUDED_SW_INC_BREAKIT_HXX

#include <memory>
#include <com/sun/star/uno/Reference.h>
#include <com/sun/star/i18n/ForbiddenCharacters.hpp>
#include <i18nlangtag/languagetag.hxx>
#include "swdllapi.h"

enum class SvtScriptType;
namespace com { namespace sun { namespace star { namespace i18n { class XBreakIterator; } } } }
namespace com { namespace sun { namespace star { namespace uno { class XComponentContext; } } } }

class SW_DLLPUBLIC SwBreakIt
{
    css::uno::Reference< css::uno::XComponentContext > m_xContext;
    css::uno::Reference<css::i18n::XBreakIterator> m_xBreak;

    std::unique_ptr<LanguageTag> m_xLanguageTag;   
    std::unique_ptr<css::i18n::ForbiddenCharacters> m_xForbidden;

    LanguageType m_aForbiddenLang; 

    void GetLocale_( const LanguageType aLang );
    void GetLocale_( const LanguageTag& rLanguageTag );
    void GetForbidden_( const LanguageType  aLang );

    SwBreakIt(SwBreakIt const&) = delete;
    SwBreakIt& operator=(SwBreakIt const&) = delete;

    // private (see @ Create_, Delete_).
    explicit SwBreakIt(const css::uno::Reference<css::uno::XComponentContext> & rxContext);

public:
    // private (see @ source/core/bastyp/init.cxx).
    static void Create_(
        const css::uno::Reference< css::uno::XComponentContext > & rxContext);
    static void Delete_();

public:
    static SwBreakIt * Get();

    css::uno::Reference< css::i18n::XBreakIterator > const & GetBreakIter()
    {
        return m_xBreak;
    }

    const css::lang::Locale& GetLocale( const LanguageType aLang )
    {
        if (!m_xLanguageTag || m_xLanguageTag->getLanguageType() != aLang)
            GetLocale_(aLang);
        return m_xLanguageTag->getLocale();
    }

    const css::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_xLanguageTag || m_xLanguageTag->getLanguageType() != rLanguageTag.getLanguageType())
            GetLocale_(rLanguageTag);
        return m_xLanguageTag->getLocale();
    }

    const LanguageTag& GetLanguageTag( const LanguageType aLang )
    {
        if (!m_xLanguageTag || m_xLanguageTag->getLanguageType() != aLang)
            GetLocale_(aLang);
        return *m_xLanguageTag;
    }

    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_xLanguageTag || m_xLanguageTag->getLanguageType() != rLanguageTag.getLanguageType())
            GetLocale_( rLanguageTag );
        return *m_xLanguageTag;
    }

    const css::i18n::ForbiddenCharacters& GetForbidden( const LanguageType aLang )
    {
        if (!m_xForbidden || m_aForbiddenLang != aLang)
            GetForbidden_( aLang );
        return *m_xForbidden;
    }

    sal_uInt16 GetRealScriptOfText( const OUString& rText, sal_Int32 nPos ) const;
    SvtScriptType GetAllScriptsOfText( const OUString& rText ) const;

    sal_Int32 getGraphemeCount(const OUString& rStr,
        sal_Int32 nStart, sal_Int32 nEnd) const;
    sal_Int32 getGraphemeCount(const OUString& rStr) const
    {
        return getGraphemeCount(rStr, 0, rStr.getLength());
    }
};

#define SW_BREAKITER()  SwBreakIt::Get()

// @@@ backward compatibility @@@
SW_DLLPUBLIC extern SwBreakIt* g_pBreakIt;

#endif

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