i18npool/source/isolang/inwnt.cxx

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  28
  29
  30 #include <sal/config.h>
  31
  32 #define WINVER 0x0500
  33
  34 #ifdef _MSC_VER
  35 #pragma warning(push,1) // disable warnings within system headers
  36 #endif
  37 #include <windef.h>     // needed by winnls.h
  38 #include <winbase.h>    // needed by winnls.h
  39 #include <winnls.h>
  40 #ifdef _MSC_VER
  41 #pragma warning(pop)
  42 #endif
  43 #include <rtl/instance.hxx>
  44 #include "i18npool/mslangid.hxx"
  45
  46 static LanguageType nImplSystemLanguage = LANGUAGE_DONTKNOW;
  47 static LanguageType nImplSystemUILanguage = LANGUAGE_DONTKNOW;
  48
  49 // =======================================================================
  50
  51 static LanguageType GetSVLang( LANGID nWinLangId )
  52 {
  53     // No Translation, we work with the original MS code without the SORT_ID.
  54     // So we can get never LANG-ID's from MS, which are currently not defined
  55     // by us.
  56     return LanguageType( static_cast<sal_uInt16>(nWinLangId & 0xffff));
  57 }
  58
  59 // -----------------------------------------------------------------------
  60
  61 typedef LANGID (WINAPI *getLangFromEnv)();
  62
  63 static void getPlatformSystemLanguageImpl( LanguageType& rSystemLanguage,
  64         getLangFromEnv pGetUserDefault, getLangFromEnv pGetSystemDefault )
  65 {
  66     LanguageType nLang = rSystemLanguage;
  67     if ( nLang == LANGUAGE_DONTKNOW )
  68     {
  69         ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex());
  70         nLang = rSystemLanguage;
  71         if ( nLang == LANGUAGE_DONTKNOW )
  72         {
  73             LANGID nLangId;
  74
  75             nLangId = (pGetUserDefault)();
  76             nLang = GetSVLang( nLangId );
  77
  78             if ( nLang == LANGUAGE_DONTKNOW )
  79             {
  80                 nLangId = (pGetSystemDefault)();
  81                 nLang = GetSVLang( nLangId );
  82             }
  83             OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
  84             rSystemLanguage = nLang;
  85         }
  86         else
  87         {
  88             OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
  89         }
  90     }
  91 }
  92
  93 // -----------------------------------------------------------------------
  94
  95 LanguageType MsLangId::getPlatformSystemLanguage()
  96 {
  97     getPlatformSystemLanguageImpl( nImplSystemLanguage,
  98             &GetUserDefaultLangID, &GetSystemDefaultLangID);
  99     return nImplSystemLanguage;
 100 }
 101
 102 // -----------------------------------------------------------------------
 103
 104 LanguageType MsLangId::getPlatformSystemUILanguage()
 105 {
 106     // TODO: this could be distinguished, #if(WINVER >= 0x0500)
 107     // needs _run_ time differentiation though, not at compile time.
 108     getPlatformSystemLanguageImpl( nImplSystemUILanguage,
 109             &GetUserDefaultUILanguage, &GetSystemDefaultUILanguage);
 110     return nImplSystemUILanguage;
 111 }
 112
 113 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */