sal/rtl/locale.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <rtl/locale.h>
  21
  22 #include <rtllifecycle.h>
  23 #include <memory>
  24 #include <unordered_map>
  25
  26 namespace {
  27
  28 struct locale_deleter
  29 {
  30     void operator() (rtl_Locale* p) noexcept
  31     {
  32         rtl_uString_release(p->Language);
  33         rtl_uString_release(p->Country);
  34         rtl_uString_release(p->Variant);
  35         delete p;
  36     }
  37 };
  38
  39 }
  40
  41 using locale_unique_ptr = std::unique_ptr<rtl_Locale, locale_deleter>;
  42
  43 static std::unordered_map<sal_Int32, locale_unique_ptr> g_aLocaleTable;
  44
  45 static rtl_Locale* g_pDefaultLocale = nullptr;
  46
  47 void rtl_locale_init()
  48 {
  49 }
  50
  51 void rtl_locale_fini()
  52 {
  53     g_aLocaleTable.clear();
  54     g_pDefaultLocale = nullptr;
  55 }
  56
  57 rtl_Locale * SAL_CALL rtl_locale_register(const sal_Unicode * language, const sal_Unicode * country, const sal_Unicode * variant)
  58 {
  59     sal_Unicode c = 0;
  60     rtl_uString* sLanguage = nullptr;
  61     rtl_uString* sCountry = nullptr;
  62     rtl_uString* sVariant = nullptr;
  63     sal_Int32 hashCode = -1;
  64
  65     if (!country)
  66         country = &c;
  67
  68     if (!variant)
  69         variant = &c;
  70
  71     ensureLocaleSingleton();
  72
  73     hashCode = rtl_ustr_hashCode(language) ^ rtl_ustr_hashCode(country) ^ rtl_ustr_hashCode(variant);
  74
  75     auto it = g_aLocaleTable.find(hashCode);
  76     if (it != g_aLocaleTable.end())
  77         return it->second.get();
  78
  79     rtl_uString_newFromStr(&sLanguage, language);
  80     rtl_uString_newFromStr(&sCountry, country);
  81     rtl_uString_newFromStr(&sVariant, variant);
  82
  83     locale_unique_ptr newLocale(new rtl_Locale);
  84
  85     newLocale->Language = sLanguage;
  86     newLocale->Country = sCountry;
  87     newLocale->Variant = sVariant;
  88     newLocale->HashCode = hashCode;
  89
  90     auto ret = newLocale.get();
  91     g_aLocaleTable.insert(it, std::pair<sal_Int32, locale_unique_ptr>( hashCode, std::move(newLocale) ) );
  92     return ret;
  93 }
  94
  95 rtl_Locale * SAL_CALL rtl_locale_getDefault()
  96 {
  97     return g_pDefaultLocale;
  98 }
  99
 100 void SAL_CALL rtl_locale_setDefault(const sal_Unicode * language, const sal_Unicode * country, const sal_Unicode * variant)
 101 {
 102     g_pDefaultLocale = rtl_locale_register(language, country, variant);
 103 }
 104
 105 rtl_uString * SAL_CALL rtl_locale_getLanguage(rtl_Locale * This)
 106 {
 107     rtl_uString_acquire(This->Language);
 108     return This->Language;
 109 }
 110
 111 rtl_uString * SAL_CALL rtl_locale_getCountry(rtl_Locale * This)
 112 {
 113     rtl_uString_acquire(This->Country);
 114     return This->Country;
 115 }
 116
 117 rtl_uString * SAL_CALL rtl_locale_getVariant(rtl_Locale * This)
 118 {
 119     rtl_uString_acquire(This->Variant);
 120     return This->Variant;
 121 }
 122
 123 sal_Int32 SAL_CALL rtl_locale_hashCode(rtl_Locale * This)
 124 {
 125     return This->HashCode;
 126 }
 127
 128 sal_Int32 SAL_CALL rtl_locale_equals(rtl_Locale * This, rtl_Locale * obj)
 129 {
 130     return This == obj;
 131 }
 132
 133 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */