i18npool/source/isolang/inwnt.cxx

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  30
  31 // no include "precompiled_i18npool.hxx" because this file is included in insys.cxx
  32
  33 #include <sal/config.h>
  34
  35 #ifdef _MSC_VER
  36 #pragma warning(push,1) // disable warnings within system headers
  37 #endif
  38 #include <windef.h>     // needed by winnls.h
  39 #include <winbase.h>    // needed by winnls.h
  40 #include <winnls.h>
  41 #ifdef _MSC_VER
  42 #pragma warning(pop)
  43 #endif
  44 #include <rtl/instance.hxx>
  45 #include "i18npool/mslangid.hxx"
  46
  47 static LanguageType nImplSystemLanguage = LANGUAGE_DONTKNOW;
  48 static LanguageType nImplSystemUILanguage = LANGUAGE_DONTKNOW;
  49
  50 // =======================================================================
  51
  52 static LanguageType GetSVLang( LANGID nWinLangId )
  53 {
  54     // No Translation, we work with the original MS code without the SORT_ID.
  55     // So we can get never LANG-ID's from MS, which are currently not defined
  56     // by us.
  57     return LanguageType( static_cast<sal_uInt16>(nWinLangId & 0xffff));
  58 }
  59
  60 // -----------------------------------------------------------------------
  61
  62 typedef LANGID (WINAPI *getLangFromEnv)();
  63
  64 static void getPlatformSystemLanguageImpl( LanguageType& rSystemLanguage,
  65         getLangFromEnv pGetUserDefault, getLangFromEnv pGetSystemDefault )
  66 {
  67     LanguageType nLang = rSystemLanguage;
  68     if ( nLang == LANGUAGE_DONTKNOW )
  69     {
  70         ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex());
  71         nLang = rSystemLanguage;
  72         if ( nLang == LANGUAGE_DONTKNOW )
  73         {
  74             LANGID nLangId;
  75
  76             nLangId = (pGetUserDefault)();
  77             nLang = GetSVLang( nLangId );
  78
  79             if ( nLang == LANGUAGE_DONTKNOW )
  80             {
  81                 nLangId = (pGetSystemDefault)();
  82                 nLang = GetSVLang( nLangId );
  83             }
  84             OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
  85             rSystemLanguage = nLang;
  86         }
  87         else
  88             OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
  89     }
  90 }
  91
  92 // -----------------------------------------------------------------------
  93
  94 LanguageType MsLangId::getPlatformSystemLanguage()
  95 {
  96     getPlatformSystemLanguageImpl( nImplSystemLanguage,
  97             &GetUserDefaultLangID, &GetSystemDefaultLangID);
  98     return nImplSystemLanguage;
  99 }
 100
 101 // -----------------------------------------------------------------------
 102
 103 LanguageType MsLangId::getPlatformSystemUILanguage()
 104 {
 105     // TODO: this could be distinguished, #if(WINVER >= 0x0500)
 106     // needs _run_ time differentiation though, not at compile time.
 107 #if 0
 108     getPlatformSystemLanguageImpl( nImplSystemUILanguage,
 109             &GetUserDefaultUILanguage, &GetSystemDefaultUILanguage);
 110 #endif
 111     getPlatformSystemLanguageImpl( nImplSystemUILanguage,
 112             &GetUserDefaultLangID, &GetSystemDefaultLangID);
 113     return nImplSystemUILanguage;
 114 }