document wxLocale::GetInfo
[wxWidgets.git] / interface / wx / intl.h
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: intl.h
3 // Purpose: interface of wxLocale
4 // Author: wxWidgets team
5 // RCS-ID: $Id$
6 // Licence: wxWindows license
7 /////////////////////////////////////////////////////////////////////////////
8
9
10 // --- --- --- generated code begins here --- --- ---
11
12 /**
13 The languages supported by wxLocale.
14
15 This enum is generated by misc/languages/genlang.py
16 When making changes, please put them into misc/languages/langtabl.txt
17 */
18 enum wxLanguage
19 {
20 /// User's default/preferred language as got from OS.
21 wxLANGUAGE_DEFAULT,
22
23 /// Unknown language, returned if wxLocale::GetSystemLanguage fails.
24 wxLANGUAGE_UNKNOWN,
25
26 wxLANGUAGE_ABKHAZIAN,
27 wxLANGUAGE_AFAR,
28 wxLANGUAGE_AFRIKAANS,
29 wxLANGUAGE_ALBANIAN,
30 wxLANGUAGE_AMHARIC,
31 wxLANGUAGE_ARABIC,
32 wxLANGUAGE_ARABIC_ALGERIA,
33 wxLANGUAGE_ARABIC_BAHRAIN,
34 wxLANGUAGE_ARABIC_EGYPT,
35 wxLANGUAGE_ARABIC_IRAQ,
36 wxLANGUAGE_ARABIC_JORDAN,
37 wxLANGUAGE_ARABIC_KUWAIT,
38 wxLANGUAGE_ARABIC_LEBANON,
39 wxLANGUAGE_ARABIC_LIBYA,
40 wxLANGUAGE_ARABIC_MOROCCO,
41 wxLANGUAGE_ARABIC_OMAN,
42 wxLANGUAGE_ARABIC_QATAR,
43 wxLANGUAGE_ARABIC_SAUDI_ARABIA,
44 wxLANGUAGE_ARABIC_SUDAN,
45 wxLANGUAGE_ARABIC_SYRIA,
46 wxLANGUAGE_ARABIC_TUNISIA,
47 wxLANGUAGE_ARABIC_UAE,
48 wxLANGUAGE_ARABIC_YEMEN,
49 wxLANGUAGE_ARMENIAN,
50 wxLANGUAGE_ASSAMESE,
51 wxLANGUAGE_AYMARA,
52 wxLANGUAGE_AZERI,
53 wxLANGUAGE_AZERI_CYRILLIC,
54 wxLANGUAGE_AZERI_LATIN,
55 wxLANGUAGE_BASHKIR,
56 wxLANGUAGE_BASQUE,
57 wxLANGUAGE_BELARUSIAN,
58 wxLANGUAGE_BENGALI,
59 wxLANGUAGE_BHUTANI,
60 wxLANGUAGE_BIHARI,
61 wxLANGUAGE_BISLAMA,
62 wxLANGUAGE_BRETON,
63 wxLANGUAGE_BULGARIAN,
64 wxLANGUAGE_BURMESE,
65 wxLANGUAGE_CAMBODIAN,
66 wxLANGUAGE_CATALAN,
67 wxLANGUAGE_CHINESE,
68 wxLANGUAGE_CHINESE_SIMPLIFIED,
69 wxLANGUAGE_CHINESE_TRADITIONAL,
70 wxLANGUAGE_CHINESE_HONGKONG,
71 wxLANGUAGE_CHINESE_MACAU,
72 wxLANGUAGE_CHINESE_SINGAPORE,
73 wxLANGUAGE_CHINESE_TAIWAN,
74 wxLANGUAGE_CORSICAN,
75 wxLANGUAGE_CROATIAN,
76 wxLANGUAGE_CZECH,
77 wxLANGUAGE_DANISH,
78 wxLANGUAGE_DUTCH,
79 wxLANGUAGE_DUTCH_BELGIAN,
80 wxLANGUAGE_ENGLISH,
81 wxLANGUAGE_ENGLISH_UK,
82 wxLANGUAGE_ENGLISH_US,
83 wxLANGUAGE_ENGLISH_AUSTRALIA,
84 wxLANGUAGE_ENGLISH_BELIZE,
85 wxLANGUAGE_ENGLISH_BOTSWANA,
86 wxLANGUAGE_ENGLISH_CANADA,
87 wxLANGUAGE_ENGLISH_CARIBBEAN,
88 wxLANGUAGE_ENGLISH_DENMARK,
89 wxLANGUAGE_ENGLISH_EIRE,
90 wxLANGUAGE_ENGLISH_JAMAICA,
91 wxLANGUAGE_ENGLISH_NEW_ZEALAND,
92 wxLANGUAGE_ENGLISH_PHILIPPINES,
93 wxLANGUAGE_ENGLISH_SOUTH_AFRICA,
94 wxLANGUAGE_ENGLISH_TRINIDAD,
95 wxLANGUAGE_ENGLISH_ZIMBABWE,
96 wxLANGUAGE_ESPERANTO,
97 wxLANGUAGE_ESTONIAN,
98 wxLANGUAGE_FAEROESE,
99 wxLANGUAGE_FARSI,
100 wxLANGUAGE_FIJI,
101 wxLANGUAGE_FINNISH,
102 wxLANGUAGE_FRENCH,
103 wxLANGUAGE_FRENCH_BELGIAN,
104 wxLANGUAGE_FRENCH_CANADIAN,
105 wxLANGUAGE_FRENCH_LUXEMBOURG,
106 wxLANGUAGE_FRENCH_MONACO,
107 wxLANGUAGE_FRENCH_SWISS,
108 wxLANGUAGE_FRISIAN,
109 wxLANGUAGE_GALICIAN,
110 wxLANGUAGE_GEORGIAN,
111 wxLANGUAGE_GERMAN,
112 wxLANGUAGE_GERMAN_AUSTRIAN,
113 wxLANGUAGE_GERMAN_BELGIUM,
114 wxLANGUAGE_GERMAN_LIECHTENSTEIN,
115 wxLANGUAGE_GERMAN_LUXEMBOURG,
116 wxLANGUAGE_GERMAN_SWISS,
117 wxLANGUAGE_GREEK,
118 wxLANGUAGE_GREENLANDIC,
119 wxLANGUAGE_GUARANI,
120 wxLANGUAGE_GUJARATI,
121 wxLANGUAGE_HAUSA,
122 wxLANGUAGE_HEBREW,
123 wxLANGUAGE_HINDI,
124 wxLANGUAGE_HUNGARIAN,
125 wxLANGUAGE_ICELANDIC,
126 wxLANGUAGE_INDONESIAN,
127 wxLANGUAGE_INTERLINGUA,
128 wxLANGUAGE_INTERLINGUE,
129 wxLANGUAGE_INUKTITUT,
130 wxLANGUAGE_INUPIAK,
131 wxLANGUAGE_IRISH,
132 wxLANGUAGE_ITALIAN,
133 wxLANGUAGE_ITALIAN_SWISS,
134 wxLANGUAGE_JAPANESE,
135 wxLANGUAGE_JAVANESE,
136 wxLANGUAGE_KANNADA,
137 wxLANGUAGE_KASHMIRI,
138 wxLANGUAGE_KASHMIRI_INDIA,
139 wxLANGUAGE_KAZAKH,
140 wxLANGUAGE_KERNEWEK,
141 wxLANGUAGE_KINYARWANDA,
142 wxLANGUAGE_KIRGHIZ,
143 wxLANGUAGE_KIRUNDI,
144 wxLANGUAGE_KONKANI,
145 wxLANGUAGE_KOREAN,
146 wxLANGUAGE_KURDISH,
147 wxLANGUAGE_LAOTHIAN,
148 wxLANGUAGE_LATIN,
149 wxLANGUAGE_LATVIAN,
150 wxLANGUAGE_LINGALA,
151 wxLANGUAGE_LITHUANIAN,
152 wxLANGUAGE_MACEDONIAN,
153 wxLANGUAGE_MALAGASY,
154 wxLANGUAGE_MALAY,
155 wxLANGUAGE_MALAYALAM,
156 wxLANGUAGE_MALAY_BRUNEI_DARUSSALAM,
157 wxLANGUAGE_MALAY_MALAYSIA,
158 wxLANGUAGE_MALTESE,
159 wxLANGUAGE_MANIPURI,
160 wxLANGUAGE_MAORI,
161 wxLANGUAGE_MARATHI,
162 wxLANGUAGE_MOLDAVIAN,
163 wxLANGUAGE_MONGOLIAN,
164 wxLANGUAGE_NAURU,
165 wxLANGUAGE_NEPALI,
166 wxLANGUAGE_NEPALI_INDIA,
167 wxLANGUAGE_NORWEGIAN_BOKMAL,
168 wxLANGUAGE_NORWEGIAN_NYNORSK,
169 wxLANGUAGE_OCCITAN,
170 wxLANGUAGE_ORIYA,
171 wxLANGUAGE_OROMO,
172 wxLANGUAGE_PASHTO,
173 wxLANGUAGE_POLISH,
174 wxLANGUAGE_PORTUGUESE,
175 wxLANGUAGE_PORTUGUESE_BRAZILIAN,
176 wxLANGUAGE_PUNJABI,
177 wxLANGUAGE_QUECHUA,
178 wxLANGUAGE_RHAETO_ROMANCE,
179 wxLANGUAGE_ROMANIAN,
180 wxLANGUAGE_RUSSIAN,
181 wxLANGUAGE_RUSSIAN_UKRAINE,
182 wxLANGUAGE_SAMI,
183 wxLANGUAGE_SAMOAN,
184 wxLANGUAGE_SANGHO,
185 wxLANGUAGE_SANSKRIT,
186 wxLANGUAGE_SCOTS_GAELIC,
187 wxLANGUAGE_SERBIAN,
188 wxLANGUAGE_SERBIAN_CYRILLIC,
189 wxLANGUAGE_SERBIAN_LATIN,
190 wxLANGUAGE_SERBO_CROATIAN,
191 wxLANGUAGE_SESOTHO,
192 wxLANGUAGE_SETSWANA,
193 wxLANGUAGE_SHONA,
194 wxLANGUAGE_SINDHI,
195 wxLANGUAGE_SINHALESE,
196 wxLANGUAGE_SISWATI,
197 wxLANGUAGE_SLOVAK,
198 wxLANGUAGE_SLOVENIAN,
199 wxLANGUAGE_SOMALI,
200 wxLANGUAGE_SPANISH,
201 wxLANGUAGE_SPANISH_ARGENTINA,
202 wxLANGUAGE_SPANISH_BOLIVIA,
203 wxLANGUAGE_SPANISH_CHILE,
204 wxLANGUAGE_SPANISH_COLOMBIA,
205 wxLANGUAGE_SPANISH_COSTA_RICA,
206 wxLANGUAGE_SPANISH_DOMINICAN_REPUBLIC,
207 wxLANGUAGE_SPANISH_ECUADOR,
208 wxLANGUAGE_SPANISH_EL_SALVADOR,
209 wxLANGUAGE_SPANISH_GUATEMALA,
210 wxLANGUAGE_SPANISH_HONDURAS,
211 wxLANGUAGE_SPANISH_MEXICAN,
212 wxLANGUAGE_SPANISH_MODERN,
213 wxLANGUAGE_SPANISH_NICARAGUA,
214 wxLANGUAGE_SPANISH_PANAMA,
215 wxLANGUAGE_SPANISH_PARAGUAY,
216 wxLANGUAGE_SPANISH_PERU,
217 wxLANGUAGE_SPANISH_PUERTO_RICO,
218 wxLANGUAGE_SPANISH_URUGUAY,
219 wxLANGUAGE_SPANISH_US,
220 wxLANGUAGE_SPANISH_VENEZUELA,
221 wxLANGUAGE_SUNDANESE,
222 wxLANGUAGE_SWAHILI,
223 wxLANGUAGE_SWEDISH,
224 wxLANGUAGE_SWEDISH_FINLAND,
225 wxLANGUAGE_TAGALOG,
226 wxLANGUAGE_TAJIK,
227 wxLANGUAGE_TAMIL,
228 wxLANGUAGE_TATAR,
229 wxLANGUAGE_TELUGU,
230 wxLANGUAGE_THAI,
231 wxLANGUAGE_TIBETAN,
232 wxLANGUAGE_TIGRINYA,
233 wxLANGUAGE_TONGA,
234 wxLANGUAGE_TSONGA,
235 wxLANGUAGE_TURKISH,
236 wxLANGUAGE_TURKMEN,
237 wxLANGUAGE_TWI,
238 wxLANGUAGE_UIGHUR,
239 wxLANGUAGE_UKRAINIAN,
240 wxLANGUAGE_URDU,
241 wxLANGUAGE_URDU_INDIA,
242 wxLANGUAGE_URDU_PAKISTAN,
243 wxLANGUAGE_UZBEK,
244 wxLANGUAGE_UZBEK_CYRILLIC,
245 wxLANGUAGE_UZBEK_LATIN,
246 wxLANGUAGE_VALENCIAN,
247 wxLANGUAGE_VIETNAMESE,
248 wxLANGUAGE_VOLAPUK,
249 wxLANGUAGE_WELSH,
250 wxLANGUAGE_WOLOF,
251 wxLANGUAGE_XHOSA,
252 wxLANGUAGE_YIDDISH,
253 wxLANGUAGE_YORUBA,
254 wxLANGUAGE_ZHUANG,
255 wxLANGUAGE_ZULU,
256
257 /// For custom, user-defined languages.
258 wxLANGUAGE_USER_DEFINED
259 };
260
261 // --- --- --- generated code ends here --- --- ---
262
263
264
265 /**
266 This is the layout direction stored in wxLanguageInfo and returned by
267 wxApp::GetLayoutDirection(), wxWindow::GetLayoutDirection(),
268 wxDC::GetLayoutDirection() for RTL (right-to-left) languages support.
269 */
270 enum wxLayoutDirection
271 {
272 wxLayout_Default,
273 wxLayout_LeftToRight,
274 wxLayout_RightToLeft
275 };
276
277 /**
278 Encapsulates a ::wxLanguage indentifier together with OS-specific information
279 related to that language.
280 */
281 struct WXDLLIMPEXP_BASE wxLanguageInfo
282 {
283 /// ::wxLanguage id.
284 /// It should be greater than @c wxLANGUAGE_USER_DEFINED when defining your own
285 /// language info structure.
286 int Language;
287
288 /// Canonical name of the language, e.g. @c fr_FR.
289 wxString CanonicalName;
290
291 //@{
292 /**
293 Win32 language identifiers (LANG_xxxx, SUBLANG_xxxx).
294
295 @onlyfor{wxmsw}
296 */
297 wxUint32 WinLang, WinSublang;
298 //@}
299
300 /// Human-readable name of the language.
301 wxString Description;
302
303 /// The layout direction used for this language.
304 wxLayoutDirection LayoutDirection;
305
306 /// Return the LCID corresponding to this language.
307 /// @onlyfor{wxmsw}
308 wxUint32 GetLCID() const;
309
310 /// Return the locale name corresponding to this language usable with
311 /// @c setlocale() on the current system.
312 wxString GetLocaleName() const;
313 };
314
315
316 /**
317 The category of locale settings. See wxLocale::GetInfo().
318 */
319 enum wxLocaleCategory
320 {
321 /// (any) numbers
322 wxLOCALE_CAT_NUMBER,
323
324 /// date/time
325 wxLOCALE_CAT_DATE,
326
327 /// monetary value
328 wxLOCALE_CAT_MONEY,
329
330 wxLOCALE_CAT_MAX
331 };
332
333 /**
334 The values understood by wxLocale::GetInfo().
335 */
336 enum wxLocaleInfo
337 {
338 /// The thounsands separator
339 wxLOCALE_THOUSANDS_SEP,
340
341 /// The character used as decimal point
342 wxLOCALE_DECIMAL_POINT
343 };
344
345
346 /**
347 @class wxLocale
348
349 wxLocale class encapsulates all language-dependent settings and is a
350 generalization of the C locale concept.
351
352 In wxWidgets this class manages message catalogs which contain the translations
353 of the strings used to the current language.
354
355 For a list of the supported languages, please see ::wxLanguage enum values.
356 These constants may be used to specify the language in wxLocale::Init and
357 are returned by wxLocale::GetSystemLanguage.
358
359 @beginWxPerlOnly
360 In wxPerl you can't use the '_' function name, so
361 the @c Wx::Locale module can export the @c gettext and
362 @c gettext_noop under any given name.
363
364 @code
365 # this imports gettext ( equivalent to Wx::GetTranslation
366 # and gettext_noop ( a noop )
367 # into your module
368 use Wx::Locale qw(:default);
369
370 # ....
371
372 # use the functions
373 print gettext( "Panic!" );
374
375 button = Wx::Button-new( window, -1, gettext( "Label" ) );
376 @endcode
377
378 If you need to translate a lot of strings, then adding gettext( ) around
379 each one is a long task ( that is why _( ) was introduced ), so just choose
380 a shorter name for gettext:
381
382 @code
383 use Wx::Locale 'gettext' = 't',
384 'gettext_noop' = 'gettext_noop';
385
386 # ...
387
388 # use the functions
389 print t( "Panic!!" );
390
391 # ...
392 @endcode
393 @endWxPerlOnly
394
395 @library{wxbase}
396 @category{cfg}
397
398 @see @ref overview_i18n, @ref page_samples_internat, wxXLocale
399 */
400 class wxLocale
401 {
402 public:
403 /**
404 This is the default constructor and it does nothing to initialize the object:
405 Init() must be used to do that.
406 */
407 wxLocale();
408
409 /**
410 See Init() for parameters description.
411 */
412 wxLocale(int language,
413 int flags = wxLOCALE_LOAD_DEFAULT | wxLOCALE_CONV_ENCODING);
414
415 /**
416 See Init() for parameters description.
417
418 The call of this function has several global side effects which you should
419 understand: first of all, the application locale is changed - note that this
420 will affect many of standard C library functions such as printf() or strftime().
421 Second, this wxLocale object becomes the new current global locale for the
422 application and so all subsequent calls to ::wxGetTranslation() will try to
423 translate the messages using the message catalogs for this locale.
424 */
425 wxLocale(const wxString& name,
426 const wxString& short = wxEmptyString,
427 const wxString& locale = wxEmptyString,
428 bool bLoadDefault = true,
429 bool bConvertEncoding = false);
430
431 /**
432 The destructor, like the constructor, also has global side effects: the
433 previously set locale is restored and so the changes described in
434 Init() documentation are rolled back.
435 */
436 virtual ~wxLocale();
437
438 /**
439 Add a catalog for use with the current locale: it is searched for in standard
440 places (current directory first, then the system one), but you may also prepend
441 additional directories to the search path with AddCatalogLookupPathPrefix().
442
443 All loaded catalogs will be used for message lookup by GetString() for
444 the current locale.
445
446 In this overload, @c msgid strings are assumed
447 to be in English and written only using 7-bit ASCII characters.
448 If you have to deal with non-English strings or 8-bit characters in the
449 source code, see the instructions in @ref overview_nonenglish.
450
451 @return
452 @true if catalog was successfully loaded, @false otherwise (which might
453 mean that the catalog is not found or that it isn't in the correct format).
454 */
455 bool AddCatalog(const wxString& domain);
456
457 /**
458 Add a catalog for use with the current locale: it is searched for in standard
459 places (current directory first, then the system one), but you may also prepend
460 additional directories to the search path with AddCatalogLookupPathPrefix().
461
462 All loaded catalogs will be used for message lookup by GetString() for
463 the current locale.
464
465 This overload takes two additional arguments, @a msgIdLanguage and @a msgIdCharset.
466
467 @param domain
468 The catalog domain to add.
469
470 @param msgIdLanguage
471 Specifies the language of "msgid" strings in source code
472 (i.e. arguments to GetString(), wxGetTranslation() and the _() macro).
473 It is used if AddCatalog() cannot find any catalog for current language:
474 if the language is same as source code language, then strings from source
475 code are used instead.
476
477 @param msgIdCharset
478 Lets you specify the charset used for msgids in sources
479 in case they use 8-bit characters (e.g. German or French strings).
480 This argument has no effect in Unicode build, because literals in sources are
481 Unicode strings; you have to use compiler-specific method of setting the right
482 charset when compiling with Unicode.
483
484 @return
485 @true if catalog was successfully loaded, @false otherwise (which might
486 mean that the catalog is not found or that it isn't in the correct format).
487 */
488 bool AddCatalog(const wxString& domain, wxLanguage msgIdLanguage,
489 const wxString& msgIdCharset);
490
491 /**
492 Add a prefix to the catalog lookup path: the message catalog files will
493 be looked up under prefix/lang/LC_MESSAGES, prefix/lang and prefix
494 (in this order).
495
496 This only applies to subsequent invocations of AddCatalog().
497 */
498 static void AddCatalogLookupPathPrefix(const wxString& prefix);
499
500 /**
501 Adds custom, user-defined language to the database of known languages.
502 This database is used in conjunction with the first form of Init().
503 */
504 static void AddLanguage(const wxLanguageInfo& info);
505
506 /**
507 This function may be used to find the language description structure for the
508 given locale, specified either as a two letter ISO language code (for example,
509 "pt"), a language code followed by the country code ("pt_BR") or a full, human
510 readable, language description ("Portuguese-Brazil").
511
512 Returns the information for the given language or @NULL if this language
513 is unknown. Note that even if the returned pointer is valid, the caller
514 should @e not delete it.
515
516 @see GetLanguageInfo()
517 */
518 static const wxLanguageInfo* FindLanguageInfo(const wxString& locale);
519
520 /**
521 Returns the canonical form of current locale name. Canonical form is the
522 one that is used on UNIX systems: it is a two- or five-letter string in xx or
523 xx_YY format, where xx is ISO 639 code of language and YY is ISO 3166 code of
524 the country. Examples are "en", "en_GB", "en_US" or "fr_FR".
525 This form is internally used when looking up message catalogs.
526 Compare GetSysName().
527 */
528 wxString GetCanonicalName() const;
529
530 /**
531 Returns the header value for header @a header.
532 The search for @a header is case sensitive. If an @a domain is passed,
533 this domain is searched. Else all domains will be searched until a
534 header has been found.
535
536 The return value is the value of the header if found. Else this will be empty.
537 */
538 wxString GetHeaderValue(const wxString& header,
539 const wxString& domain = wxEmptyString) const;
540
541 /**
542 Returns the ::wxLanguage constant of current language.
543
544 Note that you can call this function only if you used the form of
545 Init() that takes ::wxLanguage argument.
546 */
547 int GetLanguage() const;
548
549 /**
550 Returns a pointer to wxLanguageInfo structure containing information about
551 the given language or @NULL if this language is unknown. Note that even if
552 the returned pointer is valid, the caller should @e not delete it.
553
554 See AddLanguage() for the wxLanguageInfo description.
555 As with Init(), @c wxLANGUAGE_DEFAULT has the special meaning if passed
556 as an argument to this function and in this case the result of
557 GetSystemLanguage() is used.
558 */
559 static const wxLanguageInfo* GetLanguageInfo(int lang);
560
561 /**
562 Returns English name of the given language or empty string if this
563 language is unknown.
564
565 See GetLanguageInfo() for a remark about special meaning of @c wxLANGUAGE_DEFAULT.
566 */
567 static wxString GetLanguageName(int lang);
568
569 /**
570 Returns the locale name as passed to the constructor or Init().
571
572 This is a full, human-readable name, e.g. "English" or "French".
573 */
574 const wxString& GetLocale() const;
575
576 /**
577 Returns the current short name for the locale (as given to the constructor or
578 the Init() function).
579 */
580 const wxString& GetName() const;
581
582 /**
583 Retrieves the translation for a string in all loaded domains unless the @a domain
584 parameter is specified (and then only this catalog/domain is searched).
585
586 Returns original string if translation is not available (in this case an
587 error message is generated the first time a string is not found; use
588 wxLogNull to suppress it).
589
590 @remarks Domains are searched in the last to first order, i.e. catalogs
591 added later override those added before.
592 */
593 virtual const wxString& GetString(const wxString& origString,
594 const wxString& domain = wxEmptyString) const;
595
596 /**
597 Retrieves the translation for a string in all loaded domains unless the @a domain
598 parameter is specified (and then only this catalog/domain is searched).
599
600 Returns original string if translation is not available (in this case an
601 error message is generated the first time a string is not found; use
602 wxLogNull to suppress it).
603
604 This form is used when retrieving translation of string that has different
605 singular and plural form in English or different plural forms in some
606 other language.
607 It takes two extra arguments: @a origString parameter must contain the
608 singular form of the string to be converted.
609
610 It is also used as the key for the search in the catalog.
611 The @a origString2 parameter is the plural form (in English).
612
613 The parameter @a n is used to determine the plural form.
614 If no message catalog is found @a origString is returned if 'n == 1',
615 otherwise @a origString2.
616
617 See GNU gettext manual for additional information on plural forms handling.
618 This method is called by the wxGetTranslation() function and _() macro.
619
620 @remarks Domains are searched in the last to first order, i.e. catalogs
621 added later override those added before.
622 */
623 virtual const wxString& GetString(const wxString& origString,
624 const wxString& origString2, size_t n,
625 const wxString& domain = wxEmptyString) const;
626
627 /**
628 Returns current platform-specific locale name as passed to setlocale().
629 Compare GetCanonicalName().
630 */
631 wxString GetSysName() const;
632
633 /**
634 Tries to detect the user's default font encoding.
635 Returns wxFontEncoding() value or @c wxFONTENCODING_SYSTEM if it
636 couldn't be determined.
637 */
638 static wxFontEncoding GetSystemEncoding();
639
640 /**
641 Tries to detect the name of the user's default font encoding.
642 This string isn't particularly useful for the application as its form is
643 platform-dependent and so you should probably use GetSystemEncoding() instead.
644
645 Returns a user-readable string value or an empty string if it couldn't be
646 determined.
647 */
648 static wxString GetSystemEncodingName();
649
650 /**
651 Tries to detect the user's default language setting.
652
653 Returns the ::wxLanguage value or @c wxLANGUAGE_UNKNOWN if the language-guessing
654 algorithm failed.
655 */
656 static int GetSystemLanguage();
657
658 /**
659 Get the values of the given locale-dependent datum.
660
661 The current locale is used, the US default value is returned if everything
662 else fails.
663 */
664 static wxString GetInfo(wxLocaleInfo index, wxLocaleCategory cat);
665
666 /**
667 Initializes the wxLocale instance.
668
669 The call of this function has several global side effects which you should
670 understand: first of all, the application locale is changed - note that
671 this will affect many of standard C library functions such as printf()
672 or strftime().
673 Second, this wxLocale object becomes the new current global locale for
674 the application and so all subsequent calls to wxGetTranslation() will
675 try to translate the messages using the message catalogs for this locale.
676
677 @param language
678 ::wxLanguage identifier of the locale.
679 @c wxLANGUAGE_DEFAULT has special meaning -- wxLocale will use system's
680 default language (see GetSystemLanguage()).
681 @param flags
682 Combination of the following:
683 - wxLOCALE_LOAD_DEFAULT: Load the message catalog for the given locale
684 containing the translations of standard wxWidgets messages
685 automatically.
686 - wxLOCALE_CONV_ENCODING: Automatically convert message catalogs to
687 platform's default encoding. Note that it will do only basic
688 conversion between well-known pair like iso8859-1 and windows-1252 or
689 iso8859-2 and windows-1250. See @ref overview_nonenglish for
690 detailed description of this behaviour.
691 Note that this flag is meaningless in Unicode build.
692
693 @return @true on success or @false if the given locale couldn't be set.
694 */
695 bool Init(int language = wxLANGUAGE_DEFAULT,
696 int flags = wxLOCALE_LOAD_DEFAULT | wxLOCALE_CONV_ENCODING);
697
698 /**
699 @deprecated
700 This form is deprecated, use the other one unless you know what you are doing.
701
702 @param name
703 The name of the locale. Only used in diagnostic messages.
704 @param short
705 The standard 2 letter locale abbreviation; it is used as the
706 directory prefix when looking for the message catalog files.
707 @param locale
708 The parameter for the call to setlocale().
709 Note that it is platform-specific.
710 @param bLoadDefault
711 May be set to @false to prevent loading of the message catalog for the
712 given locale containing the translations of standard wxWidgets messages.
713 This parameter would be rarely used in normal circumstances.
714 @param bConvertEncoding
715 May be set to @true to do automatic conversion of message catalogs to
716 platform's native encoding. Note that it will do only basic conversion
717 between well-known pair like iso8859-1 and windows-1252 or iso8859-2
718 and windows-1250.
719 See @ref overview_nonenglish for detailed description of this behaviour.
720 */
721 bool Init(const wxString& name, const wxString& short = wxEmptyString,
722 const wxString& locale = wxEmptyString, bool bLoadDefault = true,
723 bool bConvertEncoding = false);
724
725 /**
726 Check whether the operating system and/or C run time environment supports
727 this locale. For example in Windows 2000 and Windows XP, support for many
728 locales is not installed by default. Returns @true if the locale is
729 supported.
730
731 The argument @a lang is the ::wxLanguage identifier. To obtain this for a
732 given a two letter ISO language code, use FindLanguageInfo() to obtain its
733 wxLanguageInfo structure.
734 See AddLanguage() for the wxLanguageInfo description.
735
736 @since 2.7.1.
737 */
738 static bool IsAvailable(int lang);
739
740 /**
741 Check if the given catalog is loaded, and returns @true if it is.
742
743 According to GNU gettext tradition, each catalog normally corresponds to
744 'domain' which is more or less the application name.
745
746 @see AddCatalog()
747 */
748 bool IsLoaded(const wxString& domain) const;
749
750 /**
751 Returns @true if the locale could be set successfully.
752 */
753 bool IsOk() const;
754 };
755
756
757
758
759 // ============================================================================
760 // Global functions/macros
761 // ============================================================================
762
763 /** @addtogroup group_funcmacro_string */
764 //@{
765
766 /**
767 This macro is identical to _() but for the plural variant of
768 wxGetTranslation().
769
770 @return A const wxString.
771
772 @header{wx/intl.h}
773 */
774 #define wxPLURAL(string, plural, n)
775
776 /**
777 This macro doesn't do anything in the program code -- it simply expands to
778 the value of its argument.
779
780 However it does have a purpose which is to mark the literal strings for the
781 extraction into the message catalog created by @c xgettext program. Usually
782 this is achieved using _() but that macro not only marks the string for
783 extraction but also expands into a wxGetTranslation() call which means that
784 it cannot be used in some situations, notably for static array
785 initialization.
786
787 Here is an example which should make it more clear: suppose that you have a
788 static array of strings containing the weekday names and which have to be
789 translated (note that it is a bad example, really, as wxDateTime already
790 can be used to get the localized week day names already). If you write:
791
792 @code
793 static const char * const weekdays[] = { _("Mon"), ..., _("Sun") };
794 ...
795 // use weekdays[n] as usual
796 @endcode
797
798 The code wouldn't compile because the function calls are forbidden in the
799 array initializer. So instead you should do this:
800
801 @code
802 static const char * const weekdays[] = { wxTRANSLATE("Mon"), ...,
803 wxTRANSLATE("Sun") };
804 ...
805 // use wxGetTranslation(weekdays[n])
806 @endcode
807
808 Note that although the code @b would compile if you simply omit
809 wxTRANSLATE() in the above, it wouldn't work as expected because there
810 would be no translations for the weekday names in the program message
811 catalog and wxGetTranslation() wouldn't find them.
812
813 @return A const wxChar*.
814
815 @header{wx/intl.h}
816 */
817 #define wxTRANSLATE(string)
818
819 /**
820 This function returns the translation of @a string in the current
821 @c locale(). If the string is not found in any of the loaded message
822 catalogs (see @ref overview_i18n), the original string is returned. In
823 debug build, an error message is logged -- this should help to find the
824 strings which were not yet translated. If @a domain is specified then only
825 that domain/catalog is searched for a matching string. As this function is
826 used very often, an alternative (and also common in Unix world) syntax is
827 provided: the _() macro is defined to do the same thing as
828 wxGetTranslation().
829
830 This function calls wxLocale::GetString().
831
832 @note This function is not suitable for literal strings in Unicode builds
833 since the literal strings must be enclosed into _T() or wxT() macro
834 which makes them unrecognised by @c xgettext, and so they are not
835 extracted to the message catalog. Instead, use the _() and wxPLURAL()
836 macro for all literal strings.
837
838 @see wxGetTranslation(const wxString&, const wxString&, size_t, const wxString&)
839
840 @header{wx/intl.h}
841 */
842 const wxString& wxGetTranslation(const wxString& string,
843 const wxString& domain = wxEmptyString);
844
845 /**
846 This is an overloaded version of
847 wxGetTranslation(const wxString&, const wxString&), please see its
848 documentation for general information.
849
850 This version is used when retrieving translation of string that has
851 different singular and plural forms in English or different plural forms in
852 some other language. Like wxGetTranslation(const wxString&,const wxString&),
853 the @a string parameter must contain the singular form of the string to be
854 converted and is used as the key for the search in the catalog. The
855 @a plural parameter is the plural form (in English). The parameter @a n is
856 used to determine the plural form. If no message catalog is found,
857 @a string is returned if "n == 1", otherwise @a plural is returned.
858
859 See GNU gettext Manual for additional information on plural forms handling:
860 <http://www.gnu.org/software/gettext/manual/gettext.html#Plural-forms>
861 For a shorter alternative see the wxPLURAL() macro.
862
863 This function calls wxLocale::GetString().
864
865 @header{wx/intl.h}
866 */
867 const wxString& wxGetTranslation(const wxString& string,
868 const wxString& plural, size_t n,
869 const wxString& domain = wxEmptyString);
870
871 /**
872 This macro expands into a call to wxGetTranslation(), so it marks the
873 message for the extraction by @c xgettext just as wxTRANSLATE() does, but
874 also returns the translation of the string for the current locale during
875 execution.
876
877 Don't confuse this with _T()!
878
879 @header{wx/intl.h}
880 */
881 const wxString& _(const wxString& string);
882
883 //@}
884