wxWidgets/include/wx/intl.h
Vadim Zeitlin 3f66f6a5b3 Remove all lines containing cvs/svn "$Id$" keyword.
This keyword is not expanded by Git which means it's not replaced with the
correct revision value in the releases made using git-based scripts and it's
confusing to have lines with unexpanded "$Id$" in the released files. As
expanding them with Git is not that simple (it could be done with git archive
and export-subst attribute) and there are not many benefits in having them in
the first place, just remove all these lines.

If nothing else, this will make an eventual transition to Git simpler.

Closes #14487.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2013-07-26 16:02:46 +00:00

367 lines
13 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/intl.h
// Purpose: Internationalization and localisation for wxWidgets
// Author: Vadim Zeitlin
// Modified by: Michael N. Filippov <michael@idisys.iae.nsk.su>
// (2003/09/30 - plural forms support)
// Created: 29/01/98
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_INTL_H_
#define _WX_INTL_H_
#include "wx/defs.h"
#include "wx/string.h"
#include "wx/translation.h"
// Make wxLayoutDirection enum available without need for wxUSE_INTL so wxWindow, wxApp
// and other classes are not distrubed by wxUSE_INTL
enum wxLayoutDirection
{
wxLayout_Default,
wxLayout_LeftToRight,
wxLayout_RightToLeft
};
#if wxUSE_INTL
#include "wx/fontenc.h"
#include "wx/language.h"
// ============================================================================
// global decls
// ============================================================================
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
// ----------------------------------------------------------------------------
// forward decls
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_FWD_BASE wxLocale;
class WXDLLIMPEXP_FWD_BASE wxLanguageInfoArray;
// ============================================================================
// locale support
// ============================================================================
// ----------------------------------------------------------------------------
// wxLanguageInfo: encapsulates wxLanguage to OS native lang.desc.
// translation information
// ----------------------------------------------------------------------------
struct WXDLLIMPEXP_BASE wxLanguageInfo
{
int Language; // wxLanguage id
wxString CanonicalName; // Canonical name, e.g. fr_FR
#ifdef __WINDOWS__
wxUint32 WinLang, // Win32 language identifiers
WinSublang;
#endif // __WINDOWS__
wxString Description; // human-readable name of the language
wxLayoutDirection LayoutDirection;
#ifdef __WINDOWS__
// return the LCID corresponding to this language
wxUint32 GetLCID() const;
#endif // __WINDOWS__
// return the locale name corresponding to this language usable with
// setlocale() on the current system
wxString GetLocaleName() const;
};
// for Unix systems GetLocaleName() is trivial so implement it inline here, for
// MSW it's implemented in intl.cpp
#ifndef __WINDOWS__
inline wxString wxLanguageInfo::GetLocaleName() const { return CanonicalName; }
#endif // !__WINDOWS__
// ----------------------------------------------------------------------------
// wxLocaleCategory: the category of locale settings
// ----------------------------------------------------------------------------
enum wxLocaleCategory
{
// (any) numbers
wxLOCALE_CAT_NUMBER,
// date/time
wxLOCALE_CAT_DATE,
// monetary value
wxLOCALE_CAT_MONEY,
// default category for wxLocaleInfo values which only apply to a single
// category (e.g. wxLOCALE_SHORT_DATE_FMT)
wxLOCALE_CAT_DEFAULT,
wxLOCALE_CAT_MAX
};
// ----------------------------------------------------------------------------
// wxLocaleInfo: the items understood by wxLocale::GetInfo()
// ----------------------------------------------------------------------------
enum wxLocaleInfo
{
// the thousands separator (for wxLOCALE_CAT_NUMBER or MONEY)
wxLOCALE_THOUSANDS_SEP,
// the character used as decimal point (for wxLOCALE_CAT_NUMBER or MONEY)
wxLOCALE_DECIMAL_POINT,
// the stftime()-formats used for short/long date and time representations
// (under some platforms short and long date formats are the same)
//
// NB: these elements should appear in this order, code in GetInfo() relies
// on it
wxLOCALE_SHORT_DATE_FMT,
wxLOCALE_LONG_DATE_FMT,
wxLOCALE_DATE_TIME_FMT,
wxLOCALE_TIME_FMT
};
// ----------------------------------------------------------------------------
// wxLocale: encapsulates all language dependent settings, including current
// message catalogs, date, time and currency formats (TODO) &c
// ----------------------------------------------------------------------------
enum wxLocaleInitFlags
{
wxLOCALE_DONT_LOAD_DEFAULT = 0x0000, // don't load wxwin.mo
wxLOCALE_LOAD_DEFAULT = 0x0001 // load wxwin.mo?
#if WXWIN_COMPATIBILITY_2_8
,wxLOCALE_CONV_ENCODING = 0x0002 // no longer used, simply remove
// it from the existing code
#endif
};
class WXDLLIMPEXP_BASE wxLocale
{
public:
// ctor & dtor
// -----------
// call Init() if you use this ctor
wxLocale() { DoCommonInit(); }
// the ctor has a side effect of changing current locale
wxLocale(const wxString& name, // name (for messages)
const wxString& shortName = wxEmptyString, // dir prefix (for msg files)
const wxString& locale = wxEmptyString, // locale (for setlocale)
bool bLoadDefault = true // preload wxstd.mo?
#if WXWIN_COMPATIBILITY_2_8
,bool bConvertEncoding = true // convert Win<->Unix if necessary?
#endif
)
{
DoCommonInit();
#if WXWIN_COMPATIBILITY_2_8
Init(name, shortName, locale, bLoadDefault, bConvertEncoding);
#else
Init(name, shortName, locale, bLoadDefault);
#endif
}
wxLocale(int language, // wxLanguage id or custom language
int flags = wxLOCALE_LOAD_DEFAULT)
{
DoCommonInit();
Init(language, flags);
}
// the same as a function (returns true on success)
bool Init(const wxString& name,
const wxString& shortName = wxEmptyString,
const wxString& locale = wxEmptyString,
bool bLoadDefault = true
#if WXWIN_COMPATIBILITY_2_8
,bool bConvertEncoding = true
#endif
);
// same as second ctor (returns true on success)
bool Init(int language = wxLANGUAGE_DEFAULT,
int flags = wxLOCALE_LOAD_DEFAULT);
// restores old locale
virtual ~wxLocale();
// Try to get user's (or OS's) preferred language setting.
// Return wxLANGUAGE_UNKNOWN if language-guessing algorithm failed
static int GetSystemLanguage();
// get the encoding used by default for text on this system, returns
// wxFONTENCODING_SYSTEM if it couldn't be determined
static wxFontEncoding GetSystemEncoding();
// get the string describing the system encoding, return empty string if
// couldn't be determined
static wxString GetSystemEncodingName();
// get the values of the given locale-dependent datum: the current locale
// is used, the US default value is returned if everything else fails
static wxString GetInfo(wxLocaleInfo index,
wxLocaleCategory cat = wxLOCALE_CAT_DEFAULT);
// return true if the locale was set successfully
bool IsOk() const { return m_pszOldLocale != NULL; }
// returns locale name
const wxString& GetLocale() const { return m_strLocale; }
// return current locale wxLanguage value
int GetLanguage() const { return m_language; }
// return locale name to be passed to setlocale()
wxString GetSysName() const;
// return 'canonical' name, i.e. in the form of xx[_YY], where xx is
// language code according to ISO 639 and YY is country name
// as specified by ISO 3166.
wxString GetCanonicalName() const { return m_strShort; }
// add a prefix to the catalog lookup path: the message catalog files will be
// looked up under prefix/<lang>/LC_MESSAGES, prefix/LC_MESSAGES and prefix
// (in this order).
//
// This only applies to subsequent invocations of AddCatalog()!
static void AddCatalogLookupPathPrefix(const wxString& prefix)
{ wxFileTranslationsLoader::AddCatalogLookupPathPrefix(prefix); }
// add a catalog: it's searched for in standard places (current directory
// first, system one after), but the you may prepend additional directories to
// the search path with AddCatalogLookupPathPrefix().
//
// The loaded catalog will be used for message lookup by GetString().
//
// Returns 'true' if it was successfully loaded
bool AddCatalog(const wxString& domain);
bool AddCatalog(const wxString& domain, wxLanguage msgIdLanguage);
bool AddCatalog(const wxString& domain,
wxLanguage msgIdLanguage, const wxString& msgIdCharset);
// check if the given locale is provided by OS and C run time
static bool IsAvailable(int lang);
// check if the given catalog is loaded
bool IsLoaded(const wxString& domain) const;
// Retrieve the language info struct for the given language
//
// Returns NULL if no info found, pointer must *not* be deleted by caller
static const wxLanguageInfo *GetLanguageInfo(int lang);
// Returns language name in English or empty string if the language
// is not in database
static wxString GetLanguageName(int lang);
// Returns ISO code ("canonical name") of language or empty string if the
// language is not in database
static wxString GetLanguageCanonicalName(int lang);
// Find the language for the given locale string which may be either a
// canonical ISO 2 letter language code ("xx"), a language code followed by
// the country code ("xx_XX") or a Windows full language name ("Xxxxx...")
//
// Returns NULL if no info found, pointer must *not* be deleted by caller
static const wxLanguageInfo *FindLanguageInfo(const wxString& locale);
// Add custom language to the list of known languages.
// Notes: 1) wxLanguageInfo contains platform-specific data
// 2) must be called before Init to have effect
static void AddLanguage(const wxLanguageInfo& info);
// retrieve the translation for a string in all loaded domains unless
// the szDomain parameter is specified (and then only this domain is
// searched)
// n - additional parameter for PluralFormsParser
//
// return original string if translation is not available
// (in this case an error message is generated the first time
// a string is not found; use wxLogNull to suppress it)
//
// domains are searched in the last to first order, i.e. catalogs
// added later override those added before.
const wxString& GetString(const wxString& origString,
const wxString& domain = wxEmptyString) const
{
return wxGetTranslation(origString, domain);
}
// plural form version of the same:
const wxString& GetString(const wxString& origString,
const wxString& origString2,
unsigned n,
const wxString& domain = wxEmptyString) const
{
return wxGetTranslation(origString, origString2, n, domain);
}
// this is hack to work around a problem with wxGetTranslation() which
// returns const wxString& and not wxString, so when it returns untranslated
// string, it needs to have a copy of it somewhere
static const wxString& GetUntranslatedString(const wxString& str)
{ return wxTranslations::GetUntranslatedString(str); }
// Returns the current short name for the locale
const wxString& GetName() const { return m_strShort; }
// return the contents of .po file header
wxString GetHeaderValue(const wxString& header,
const wxString& domain = wxEmptyString) const;
// These two methods are for internal use only. First one creates
// ms_languagesDB if it doesn't already exist, second one destroys
// it.
static void CreateLanguagesDB();
static void DestroyLanguagesDB();
private:
bool DoInit(const wxString& name,
const wxString& shortName,
const wxString& locale);
// copy default table of languages from global static array to
// m_langugagesInfo, called by InitLanguagesDB
static void InitLanguagesDB();
// initialize the member fields to default values
void DoCommonInit();
wxString m_strLocale, // this locale name
m_strShort; // short name for the locale
int m_language; // this locale wxLanguage value
const char *m_pszOldLocale; // previous locale from setlocale()
wxLocale *m_pOldLocale; // previous wxLocale
bool m_initialized;
wxTranslations m_translations;
static wxLanguageInfoArray *ms_languagesDB;
wxDECLARE_NO_COPY_CLASS(wxLocale);
};
// ----------------------------------------------------------------------------
// global functions
// ----------------------------------------------------------------------------
// get the current locale object (note that it may be NULL!)
extern WXDLLIMPEXP_BASE wxLocale* wxGetLocale();
#endif // wxUSE_INTL
#endif // _WX_INTL_H_