1 files changed, 93 insertions, 0 deletions
diff --git a/i18nlangtag/source/isolang/inwnt.cxx b/i18nlangtag/source/isolang/inwnt.cxx
new file mode 100644
index 000000000..76fe58b04
--- /dev/null
+++ b/i18nlangtag/source/isolang/inwnt.cxx
@@ -0,0 +1,93 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <sal/config.h>
+
+#include <windef.h>
+#include <winbase.h>
+#include <winnls.h>
+#include <osl/mutex.hxx>
+#include <osl/doublecheckedlocking.h>
+#include <i18nlangtag/mslangid.hxx>
+
+static LanguageType nImplSystemLanguage = LANGUAGE_DONTKNOW;
+static LanguageType nImplSystemUILanguage = LANGUAGE_DONTKNOW;
+
+
+static LanguageType GetSVLang( LANGID nWinLangId )
+{
+    // No Translation, we work with the original MS code without the SORT_ID.
+    // So we can get never LANG-ID's from MS, which are currently not defined
+    // by us.
+    return LanguageType( static_cast<sal_uInt16>(nWinLangId & 0xffff));
+}
+
+
+typedef LANGID (WINAPI *getLangFromEnv)();
+
+static void getPlatformSystemLanguageImpl( LanguageType& rSystemLanguage,
+        getLangFromEnv pGetUserDefault, getLangFromEnv pGetSystemDefault )
+{
+    LanguageType nLang = rSystemLanguage;
+    if ( nLang == LANGUAGE_DONTKNOW )
+    {
+        ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex());
+        nLang = rSystemLanguage;
+        if ( nLang == LANGUAGE_DONTKNOW )
+        {
+            LANGID nLangId;
+
+            nLangId = pGetUserDefault();
+            nLang = GetSVLang( nLangId );
+
+            if ( nLang == LANGUAGE_DONTKNOW )
+            {
+                nLangId = pGetSystemDefault();
+                nLang = GetSVLang( nLangId );
+            }
+            OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
+            rSystemLanguage = nLang;
+        }
+        else
+        {
+            OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
+        }
+    }
+}
+
+
+LanguageType MsLangId::getPlatformSystemLanguage()
+{
+    getPlatformSystemLanguageImpl( nImplSystemLanguage,
+            &GetUserDefaultLangID, &GetSystemDefaultLangID);
+    return nImplSystemLanguage;
+}
+
+
+LanguageType MsLangId::getPlatformSystemUILanguage()
+{
+    // TODO: this could be distinguished, #if(WINVER >= 0x0500)
+    // needs _run_ time differentiation though, not at compile time.
+    getPlatformSystemLanguageImpl( nImplSystemUILanguage,
+            &GetUserDefaultUILanguage, &GetSystemDefaultUILanguage);
+    return nImplSystemUILanguage;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */