1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
#include <cstring>
#include <set>
#include <vector>
#if defined(_WIN32)
#if 1 // Prevent IWYU reordering platform_win.h below mmsystem.h
# include "platform_win.h"
#endif
# include "mmsystem.h"
#elif defined(__APPLE__)
#include <CoreFoundation/CFLocale.h>
#include <CoreFoundation/CoreFoundation.h>
#elif defined(__ANDROID__)
#include <jni.h>
#include "sdl_wrappers.h" // for SDL_AndroidGetJNIEnv()
#include "debug.h" // for DebugLog/D_INFO/D_MAIN
#elif defined(__linux__)
#include <langinfo.h>
#endif
#include "cata_utility.h"
#include "options.h"
#include "system_locale.h"
#ifndef _WIN32
namespace
{
// Try to match language code to a supported game language by prefix
// For example, "fr_CA.UTF-8" -> "fr"
// Returns std::nullopt if the language is not supported by the game
std::optional<std::string> matchGameLanguage( const std::string_view lang )
{
const std::vector<options_manager::id_and_option> available_languages =
get_options().get_option( "USE_LANG" ).getItems();
for( const options_manager::id_and_option &available_language : available_languages ) {
if( !available_language.first.empty() && string_starts_with( lang, available_language.first ) ) {
return available_language.first;
}
}
return std::nullopt;
}
} // namespace
#endif
namespace SystemLocale
{
std::optional<std::string> Language()
{
#if defined(_WIN32)
/* "Useful" links:
* https://www.science.co.il/language/Locale-codes.php
* https://support.microsoft.com/de-de/help/193080/how-to-use-the-getuserdefaultlcid-windows-api-function-to-determine-op
* https://msdn.microsoft.com/en-us/library/cc233965.aspx
*/
static const std::map<std::string, std::set<int>> lang_lcid {
{"en", { 1033, 2057, 3081, 4105, 5129, 6153, 7177, 8201, 9225, 10249, 11273 }},
{"ar", {{ 1025, 2049, 3073, 4097, 5121, 6145, 7169, 8193, 9217, 10241, 11265, 12289, 13313, 14337, 15361, 16385 }} },
{"cs", { 1029 } },
{"da", { 1030 } },
{"de", {{ 1031, 2055, 3079, 4103, 5127 }} },
{"el", { 1032 } },
{"es_AR", { 11274 } },
{"es_ES", {{ 1034, 2058, 3082, 4106, 5130, 6154, 7178, 8202, 9226, 10250, 12298, 13322, 14346, 15370, 16394, 17418, 18442, 19466, 20490 }} },
{"fr", {{ 1036, 2060, 3084, 4108, 5132 }} },
{"hu", { 1038 } },
{"id", { 1057 } },
{"is", { 1039 } },
{"it_IT", {{ 1040, 2064 }} },
{"ja", { 1041 } },
{"ko", { 1042 } },
{"nb", {{ 1044, 2068 }} },
{"nl", { 1043 } },
{"pl", { 1045 } },
{"pt_BR", {{ 1046, 2070 }} },
{"ru", {{ 25, 1049, 2073 }} },
{"sr", { 3098 } },
{"tr", { 1055 } },
{"uk_UA", { 1058 } },
{"zh_CN", {{ 4, 2052, 4100, 30724 }} },
{"zh_TW", {{ 1028, 3076, 5124, 31748 }} }
};
const int lcid = GetUserDefaultUILanguage();
for( auto &lang : lang_lcid ) {
if( lang.second.find( lcid ) != lang.second.end() ) {
return lang.first;
}
}
return std::nullopt;
#elif defined(__APPLE__)
// Get the user's language list (in order of preference)
CFArrayRef langs = CFLocaleCopyPreferredLanguages();
if( CFArrayGetCount( langs ) == 0 ) {
return std::nullopt;
}
CFStringRef lang = static_cast<CFStringRef>( CFArrayGetValueAtIndex( langs, 0 ) );
const char *lang_code_raw_fast = CFStringGetCStringPtr( lang, kCFStringEncodingUTF8 );
std::string lang_code;
if( lang_code_raw_fast ) { // fast way, probably it's never works
lang_code = lang_code_raw_fast;
} else { // fallback to slow way
CFIndex length = CFStringGetLength( lang ) + 1;
std::vector<char> lang_code_raw_slow( length, '\0' );
bool success = CFStringGetCString( lang, lang_code_raw_slow.data(), length, kCFStringEncodingUTF8 );
if( !success ) {
return std::nullopt;
}
lang_code = lang_code_raw_slow.data();
}
// Convert to the underscore format expected by gettext
std::replace( lang_code.begin(), lang_code.end(), '-', '_' );
/**
* Handle special case for simplified/traditional Chinese. Simplified/Traditional
* is actually denoted by the region code in older iterations of the
* language codes, whereas now (at least on OS X) region is distinct.
* That is, CDDA expects 'zh_CN' but OS X might give 'zh-Hans-CN'.
*/
if( string_starts_with( lang_code, "zh_Hans" ) ) {
return "zh_CN";
} else if( string_starts_with( lang_code, "zh_Hant" ) ) {
return "zh_TW";
}
return matchGameLanguage( lang_code );
#elif defined(__ANDROID__)
JNIEnv *env = ( JNIEnv * )SDL_AndroidGetJNIEnv();
jobject activity = ( jobject )SDL_AndroidGetActivity();
jclass clazz( env->GetObjectClass( activity ) );
jmethodID method_id = env->GetMethodID( clazz, "getSystemLang", "()Ljava/lang/String;" );
jstring ans = ( jstring )env->CallObjectMethod( activity, method_id, 0 );
const char *ans_c_str = env->GetStringUTFChars( ans, 0 );
if( ans_c_str == nullptr ) {
// fail-safe if retrieving Java string failed
return std::nullopt;
}
const std::string lang( ans_c_str );
env->ReleaseStringUTFChars( ans, ans_c_str );
env->DeleteLocalRef( activity );
env->DeleteLocalRef( clazz );
DebugLog( D_INFO, D_MAIN ) << "Read Android system language: '" << lang << '\'';
if( string_starts_with( lang, "zh_Hans" ) ) {
return "zh_CN";
} else if( string_starts_with( lang, "zh_Hant" ) ) {
return "zh_TW";
}
return matchGameLanguage( lang );
#else
const char *locale = setlocale( LC_ALL, nullptr );
if( locale == nullptr ) {
return std::nullopt;
}
if( std::strcmp( locale, "C" ) == 0 ) {
return "en";
}
return matchGameLanguage( locale );
#endif
}
std::optional<bool> UseMetricSystem()
{
#if defined(_WIN32)
// https://docs.microsoft.com/en-us/globalization/locale/units-of-measurement
DWORD measurementUnit;
if( GetLocaleInfo( LOCALE_USER_DEFAULT, LOCALE_IMEASURE | LOCALE_RETURN_NUMBER,
reinterpret_cast<LPSTR>( &measurementUnit ),
sizeof( measurementUnit ) / sizeof( TCHAR ) ) == 0 ) {
return std::nullopt;
}
// measurementUnit == 0 => Metric System
// measurementUnit == 1 => Imperial System
return measurementUnit == 0;
#elif defined(__APPLE__)
CFLocaleRef localeRef = CFLocaleCopyCurrent();
CFTypeRef useMetricSystem = CFLocaleGetValue( localeRef, kCFLocaleUsesMetricSystem );
return static_cast<bool>( CFBooleanGetValue( static_cast<CFBooleanRef>( useMetricSystem ) ) );
#elif defined(__linux__) && defined(_NL_MEASUREMENT_MEASUREMENT)
std::string const measurement( nl_langinfo( _NL_MEASUREMENT_MEASUREMENT ) );
if( !measurement.empty() ) {
return measurement.front() == 1;
}
return std::nullopt;
#else
return std::nullopt;
#endif
}
} // namespace SystemLocale
|
