xref: /aoo41x/main/i18npool/source/isolang/inwnt.cxx (revision 449ab281)
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8  * "License"); you may not use this file except in compliance
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21 
22 
23 
24 // no include "precompiled_i18npool.hxx" because this file is included in insys.cxx
25 
26 #include <sal/config.h>
27 
28 #ifdef _MSC_VER
29 #pragma warning(push,1) // disable warnings within system headers
30 #endif
31 #include <windef.h>     // needed by winnls.h
32 #include <winbase.h>    // needed by winnls.h
33 #include <winnls.h>
34 #ifdef _MSC_VER
35 #pragma warning(pop)
36 #endif
37 #include <rtl/instance.hxx>
38 #include "i18npool/mslangid.hxx"
39 
40 static LanguageType nImplSystemLanguage = LANGUAGE_DONTKNOW;
41 static LanguageType nImplSystemUILanguage = LANGUAGE_DONTKNOW;
42 
43 // =======================================================================
44 
GetSVLang(LANGID nWinLangId)45 static LanguageType GetSVLang( LANGID nWinLangId )
46 {
47     // No Translation, we work with the original MS code without the SORT_ID.
48     // So we can get never LANG-ID's from MS, which are currently not defined
49     // by us.
50     return LanguageType( static_cast<sal_uInt16>(nWinLangId & 0xffff));
51 }
52 
53 // -----------------------------------------------------------------------
54 
55 typedef LANGID (WINAPI *getLangFromEnv)();
56 
getPlatformSystemLanguageImpl(LanguageType & rSystemLanguage,getLangFromEnv pGetUserDefault,getLangFromEnv pGetSystemDefault)57 static void getPlatformSystemLanguageImpl( LanguageType& rSystemLanguage,
58         getLangFromEnv pGetUserDefault, getLangFromEnv pGetSystemDefault )
59 {
60     LanguageType nLang = rSystemLanguage;
61     if ( nLang == LANGUAGE_DONTKNOW )
62     {
63         ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex());
64         nLang = rSystemLanguage;
65         if ( nLang == LANGUAGE_DONTKNOW )
66         {
67             LANGID nLangId;
68 
69             nLangId = (pGetUserDefault)();
70             nLang = GetSVLang( nLangId );
71 
72             if ( nLang == LANGUAGE_DONTKNOW )
73             {
74                 nLangId = (pGetSystemDefault)();
75                 nLang = GetSVLang( nLangId );
76             }
77             OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
78             rSystemLanguage = nLang;
79         }
80         else
81             OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
82     }
83 }
84 
85 // -----------------------------------------------------------------------
86 
getPlatformSystemLanguage()87 LanguageType MsLangId::getPlatformSystemLanguage()
88 {
89     getPlatformSystemLanguageImpl( nImplSystemLanguage,
90             &GetUserDefaultLangID, &GetSystemDefaultLangID);
91     return nImplSystemLanguage;
92 }
93 
94 // -----------------------------------------------------------------------
95 
getPlatformSystemUILanguage()96 LanguageType MsLangId::getPlatformSystemUILanguage()
97 {
98     // TODO: this could be distinguished, #if(WINVER >= 0x0500)
99     // needs _run_ time differentiation though, not at compile time.
100     getPlatformSystemLanguageImpl( nImplSystemUILanguage,
101             &GetUserDefaultUILanguage, &GetSystemDefaultUILanguage);
102     return nImplSystemUILanguage;
103 }
104