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/* -*- 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 .
*/
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <wchar.h>
#include "nlsupport.hxx"
#include <osl/nlsupport.h>
#include <osl/diagnose.h>
#include <osl/process.h>
#include <rtl/tencinfo.h>
#include <rtl/ustrbuf.hxx>
#include <o3tl/char16_t2wchar_t.hxx>
/* XXX NOTE:
* http://msdn.microsoft.com/en-us/library/windows/desktop/dd373848.aspx
* (retrieved 2013-02-13) has some weird description for the LOCALE_SISO*
* constants: "The maximum number of characters allowed for this string is
* nine, including a terminating null character." NINE?!? In ISO 639 and ISO
* 3166?
*/
constexpr int ELP_LANGUAGE_FIELD_LENGTH = 4;
constexpr int ELP_COUNTRY_FIELD_LENGTH = 3;
static int GetLocaleInfoN(LPCWSTR l, LCTYPE t, DWORD& n)
{
return GetLocaleInfoEx(l, t | LOCALE_RETURN_NUMBER, reinterpret_cast<LPWSTR>(&n),
sizeof(n) / sizeof(WCHAR));
}
rtl_TextEncoding SAL_CALL osl_getTextEncodingFromLocale( rtl_Locale * pLocale )
{
/* if pLocale is NULL, use process locale as default */
if( nullptr == pLocale )
osl_getProcessLocale( &pLocale );
if (!pLocale || !pLocale->Language || !pLocale->Language->length)
return RTL_TEXTENCODING_DONTKNOW;
/* Build a BCP47 tag */
OUStringBuffer sLocale(OUString::unacquired(&pLocale->Language));
if (pLocale->Country && pLocale->Country->length > 0)
sLocale.append("-" + OUString::unacquired(&pLocale->Country));
sLocale.append('\0');
/* query ansi codepage for given locale */
DWORD codepage;
if (!GetLocaleInfoN(o3tl::toW(sLocale.getStr()), LOCALE_IDEFAULTANSICODEPAGE, codepage))
{
WCHAR resolved[LOCALE_NAME_MAX_LENGTH];
if (!ResolveLocaleName(o3tl::toW(sLocale.getStr()), resolved, std::size(resolved)))
return RTL_TEXTENCODING_DONTKNOW;
if (!GetLocaleInfoN(resolved, LOCALE_IDEFAULTANSICODEPAGE, codepage))
return RTL_TEXTENCODING_DONTKNOW;
}
/* if GetLocaleInfo returns 0, it is a UNICODE only locale */
if (0 == codepage)
return RTL_TEXTENCODING_UNICODE;
/* find matching rtl encoding */
return rtl_getTextEncodingFromWindowsCodePage(codepage);
}
void imp_getProcessLocale( rtl_Locale ** ppLocale )
{
WCHAR locale[LOCALE_NAME_MAX_LENGTH];
WCHAR langCode[ELP_LANGUAGE_FIELD_LENGTH];
WCHAR ctryCode[ELP_COUNTRY_FIELD_LENGTH];
OSL_ASSERT( ppLocale );
/* get the locale name to retrieve information from */
/* and call GetLocaleInfo to retrieve the iso codes */
if( GetUserDefaultLocaleName(locale, std::size(locale)) &&
GetLocaleInfoEx( locale, LOCALE_SISO639LANGNAME , langCode, std::size(langCode) ) &&
GetLocaleInfoEx( locale, LOCALE_SISO3166CTRYNAME , ctryCode, std::size(ctryCode) ) )
{
*ppLocale = rtl_locale_register( o3tl::toU(langCode), o3tl::toU(ctryCode), u"" );
}
else
{
*ppLocale = rtl_locale_register( u"C", u"", u"" );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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