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 <stdlib.h>
  21 #include <rtl/locale.h>
  22
  23 #include <osl/diagnose.h>
  24
  25 #include <rtllifecycle.h>
  26 #include <memory>
  27 #include <unordered_map>
  28
  29 namespace {
  30
  31 struct locale_deleter
  32 {
  33     void operator() (rtl_Locale* p) noexcept
  34     {
  35         rtl_uString_release(p->Language);
  36         rtl_uString_release(p->Country);
  37         rtl_uString_release(p->Variant);
  38         delete p;
  39     }
  40 };
  41
  42 }
  43
  44 using locale_unique_ptr = std::unique_ptr<rtl_Locale, locale_deleter>;
  45
  46 static std::unordered_map<sal_Int32, locale_unique_ptr> g_aLocaleTable;
  47
  48 static rtl_Locale* g_pDefaultLocale = nullptr;
  49
  50 void rtl_locale_init()
  51 {
  52 }
  53
  54 void rtl_locale_fini()
  55 {
  56     g_aLocaleTable.clear();
  57     g_pDefaultLocale = nullptr;
  58 }
  59
  60 rtl_Locale * SAL_CALL rtl_locale_register(const sal_Unicode * language, const sal_Unicode * country, const sal_Unicode * variant)
  61 {
  62     sal_Unicode c = 0;
  63     rtl_uString* sLanguage = nullptr;
  64     rtl_uString* sCountry = nullptr;
  65     rtl_uString* sVariant = nullptr;
  66     sal_Int32 hashCode = -1;
  67
  68     if (!country)
  69         country = &c;
  70
  71     if (!variant)
  72         variant = &c;
  73
  74     ensureLocaleSingleton();
  75
  76     hashCode = rtl_ustr_hashCode(language) ^ rtl_ustr_hashCode(country) ^ rtl_ustr_hashCode(variant);
  77
  78     auto it = g_aLocaleTable.find(hashCode);
  79     if (it != g_aLocaleTable.end())
  80         return it->second.get();
  81
  82     rtl_uString_newFromStr(&sLanguage, language);
  83     rtl_uString_newFromStr(&sCountry, country);
  84     rtl_uString_newFromStr(&sVariant, variant);
  85
  86     locale_unique_ptr newLocale(new rtl_Locale);
  87
  88     newLocale->Language = sLanguage;
  89     newLocale->Country = sCountry;
  90     newLocale->Variant = sVariant;
  91     newLocale->HashCode = hashCode;
  92
  93     auto ret = newLocale.get();
  94     g_aLocaleTable.insert(it, std::pair<sal_Int32, locale_unique_ptr>( hashCode, std::move(newLocale) ) );
  95     return ret;
  96 }
  97
  98 rtl_Locale * SAL_CALL rtl_locale_getDefault()
  99 {
 100     return g_pDefaultLocale;
 101 }
 102
 103 void SAL_CALL rtl_locale_setDefault(const sal_Unicode * language, const sal_Unicode * country, const sal_Unicode * variant)
 104 {
 105     g_pDefaultLocale = rtl_locale_register(language, country, variant);
 106 }
 107
 108 rtl_uString * SAL_CALL rtl_locale_getLanguage(rtl_Locale * This)
 109 {
 110     rtl_uString_acquire(This->Language);
 111     return This->Language;
 112 }
 113
 114 rtl_uString * SAL_CALL rtl_locale_getCountry(rtl_Locale * This)
 115 {
 116     rtl_uString_acquire(This->Country);
 117     return This->Country;
 118 }
 119
 120 rtl_uString * SAL_CALL rtl_locale_getVariant(rtl_Locale * This)
 121 {
 122     rtl_uString_acquire(This->Variant);
 123     return This->Variant;
 124 }
 125
 126 sal_Int32 SAL_CALL rtl_locale_hashCode(rtl_Locale * This)
 127 {
 128     return This->HashCode;
 129 }
 130
 131 sal_Int32 SAL_CALL rtl_locale_equals(rtl_Locale * This, rtl_Locale * obj)
 132 {
 133     return This == obj;
 134 }
 135
 136 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */