From 20efb43a8645cbca235d0b920e7cd0b0d6a9b576 Mon Sep 17 00:00:00 2001
From: Glenn Maynard <gmaynard@users.sourceforge.net>
Date: Fri, 28 Oct 2005 07:14:53 +0000
Subject: [PATCH] add ArchHooks::GetPreferredLanguage

---
 stepmania/src/arch/ArchHooks/ArchHooks.h      |  6 ++
 .../src/arch/ArchHooks/ArchHooks_Win32.cpp    | 92 +++++++++++++++++++
 .../src/arch/ArchHooks/ArchHooks_Win32.h      |  1 +
 3 files changed, 99 insertions(+)

diff --git a/stepmania/src/arch/ArchHooks/ArchHooks.h b/stepmania/src/arch/ArchHooks/ArchHooks.h
index 5cfe4ee014..f63d0ad311 100644
--- a/stepmania/src/arch/ArchHooks/ArchHooks.h
+++ b/stepmania/src/arch/ArchHooks/ArchHooks.h
@@ -15,6 +15,12 @@ public:
 	/* Re-exec the game.  If this is implemented, it doesn't return. */
 	virtual void RestartProgram() { }
 
+	/*
+	 * Get the 2-letter RFC-639 code of the user's preferred language
+	 * for localized messages, in uppercase.
+	 */
+	virtual CString GetPreferredLanguage() { return "EN"; }
+
 	/* Call this to temporarily enter a high-priority or realtime scheduling (depending
 	 * on the implementation) mode.  This is used to improve timestamp accuracy.  Do as
 	 * little as possible in this mode; hanging in it might hang the system entirely. */
diff --git a/stepmania/src/arch/ArchHooks/ArchHooks_Win32.cpp b/stepmania/src/arch/ArchHooks/ArchHooks_Win32.cpp
index b9ddbb676f..2baf45c5f7 100644
--- a/stepmania/src/arch/ArchHooks/ArchHooks_Win32.cpp
+++ b/stepmania/src/arch/ArchHooks/ArchHooks_Win32.cpp
@@ -159,6 +159,98 @@ void ArchHooks_Win32::RestartProgram()
 	Win32RestartProgram();
 }
 
+static CString LangIdToString( LANGID l )
+{
+	switch( PRIMARYLANGID(l) )
+	{
+	case LANG_ARABIC: return "AR";
+	case LANG_BULGARIAN: return "BG";
+	case LANG_CATALAN: return "CA";
+	case LANG_CHINESE: return "ZH";
+	case LANG_CZECH: return "CS";
+	case LANG_DANISH: return "DA";
+	case LANG_GERMAN: return "DE";
+	case LANG_GREEK: return "EL";
+	case LANG_SPANISH: return "ES";
+	case LANG_FINNISH: return "FI";
+	case LANG_FRENCH: return "FR";
+	case LANG_HEBREW: return "IW";
+	case LANG_HUNGARIAN: return "HU";
+	case LANG_ICELANDIC: return "IS";
+	case LANG_ITALIAN: return "IT";
+	case LANG_JAPANESE: return "JA";
+	case LANG_KOREAN: return "KO";
+	case LANG_DUTCH: return "NL";
+	case LANG_NORWEGIAN: return "NO";
+	case LANG_POLISH: return "PL";
+	case LANG_PORTUGUESE: return "PT";
+	case LANG_ROMANIAN: return "RO";
+	case LANG_RUSSIAN: return "RU";
+	case LANG_CROATIAN: return "HR";
+	// case LANG_SERBIAN: return "SR"; // same as LANG_CROATIAN?
+	case LANG_SLOVAK: return "SK";
+	case LANG_ALBANIAN: return "SQ";
+	case LANG_SWEDISH: return "SV";
+	case LANG_THAI: return "TH";
+	case LANG_TURKISH: return "TR";
+	case LANG_URDU: return "UR";
+	case LANG_INDONESIAN: return "IN";
+	case LANG_UKRAINIAN: return "UK";
+	case LANG_SLOVENIAN: return "SL";
+	case LANG_ESTONIAN: return "ET";
+	case LANG_LATVIAN: return "LV";
+	case LANG_LITHUANIAN: return "LT";
+	case LANG_VIETNAMESE: return "VI";
+	case LANG_ARMENIAN: return "HY";
+	case LANG_BASQUE: return "EU";
+	case LANG_MACEDONIAN: return "MK";
+	case LANG_AFRIKAANS: return "AF";
+	case LANG_GEORGIAN: return "KA";
+	case LANG_FAEROESE: return "FO";
+	case LANG_HINDI: return "HI";
+	case LANG_MALAY: return "MS";
+	case LANG_KAZAK: return "KK";
+	case LANG_SWAHILI: return "SW";
+	case LANG_UZBEK: return "UZ";
+	case LANG_TATAR: return "TT";
+	case LANG_PUNJABI: return "PA";
+	case LANG_GUJARATI: return "GU";
+	case LANG_TAMIL: return "TA";
+	case LANG_KANNADA: return "KN";
+	case LANG_MARATHI: return "MR";
+	case LANG_SANSKRIT: return "SA";
+	case LANG_MONGOLIAN: return "MN";
+	case LANG_GALICIAN: return "GL";
+	default:
+	case LANG_ENGLISH: return "EN";
+	}
+}
+
+static LANGID GetLanguageID()
+{
+	HINSTANCE hDLL = LoadLibrary( "kernel32.dll" );
+	if( hDLL )
+	{
+		typedef LANGID(GET_USER_DEFAULT_UI_LANGUAGE)(void);
+
+		GET_USER_DEFAULT_UI_LANGUAGE *pGetUserDefaultUILanguage = (GET_USER_DEFAULT_UI_LANGUAGE*) GetProcAddress( hDLL, "GetUserDefaultUILanguage" );
+		if( pGetUserDefaultUILanguage )
+		{
+			LANGID ret = pGetUserDefaultUILanguage();
+			FreeLibrary( hDLL );
+			return ret;
+		}
+		FreeLibrary( hDLL );
+	}
+
+	return GetSystemDefaultLangID();
+}
+
+CString ArchHooks_Win32::GetPreferredLanguage()
+{
+	return LangIdToString( GetLanguageID() );
+}
+
 void ArchHooks_Win32::EnterTimeCriticalSection()
 {
 	TimeCritMutex->Lock();
diff --git a/stepmania/src/arch/ArchHooks/ArchHooks_Win32.h b/stepmania/src/arch/ArchHooks/ArchHooks_Win32.h
index a3f1b1db17..e90873c4dc 100644
--- a/stepmania/src/arch/ArchHooks/ArchHooks_Win32.h
+++ b/stepmania/src/arch/ArchHooks/ArchHooks_Win32.h
@@ -11,6 +11,7 @@ public:
     ~ArchHooks_Win32();
     void DumpDebugInfo();
 	void RestartProgram();
+	CString GetPreferredLanguage();
 
 	int OldThreadPriority;
 	RageMutex *TimeCritMutex;