include/wx/intl.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        intl.h
   3 // Purpose:     Internationalization and localisation for wxWindows
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     29/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef   __INTLH__
  13 #define   __INTLH__
  14
  15 #ifdef __GNUG__
  16 #pragma interface "intl.h"
  17 #endif
  18
  19 #include "wx/defs.h"
  20 #include "wx/string.h"
  21
  22 // ============================================================================
  23 // global decls
  24 // ============================================================================
  25
  26 // ----------------------------------------------------------------------------
  27 // simple types
  28 // ----------------------------------------------------------------------------
  29
  30 // # adjust if necessary
  31 typedef unsigned char uint8;
  32 typedef unsigned long uint32;
  33
  34 // ----------------------------------------------------------------------------
  35 // macros
  36 // ----------------------------------------------------------------------------
  37
  38 // gettext() style macro
  39 #define   _(str)  wxGetTranslation(str)
  40
  41 // ----------------------------------------------------------------------------
  42 // forward decls
  43 // ----------------------------------------------------------------------------
  44 class WXDLLEXPORT wxLocale;
  45 class WXDLLEXPORT wxMsgCatalog;
  46 extern WXDLLEXPORT_DATA(wxLocale *) g_pLocale;
  47
  48 // ============================================================================
  49 // locale support
  50 // ============================================================================
  51
  52 // ----------------------------------------------------------------------------
  53 // wxLocale: encapsulates all language dependent settings, including current
  54 //           message catalogs, date, time and currency formats (#### to do) &c
  55 // ----------------------------------------------------------------------------
  56 class WXDLLEXPORT wxLocale
  57 {
  58 public:
  59   // ctor & dtor
  60     // the ctor has a side effect of changing current locale
  61   wxLocale(const char *szName,              // name (for messages)
  62            const char *szShort = NULL,      // dir prefix (for msg files)
  63            const char *szLocale = NULL,     // locale (for setlocale)
  64            bool bLoadDefault = TRUE);       // preload wxstd.mo?
  65     // restores old locale
  66  ~wxLocale();
  67
  68   // returns locale name
  69   const char *GetLocale() const { return m_strLocale; }
  70
  71   // add a catalog: it's searched for in standard places (current directory
  72   // first, system one after). It will be used for message lookup by
  73   // GetString().
  74   //
  75   // Returns 'true' if it was successfully loaded
  76   bool AddCatalog(const char *szDomain);
  77
  78   // check if the given catalog is loaded
  79   bool IsLoaded(const char *szDomain) const;
  80
  81   // retrieve the translation for a string in all loaded domains unless
  82   // the szDomain parameter is specified (and then only this domain is
  83   // searched)
  84   //
  85   // return original string if translation is not available
  86   // (in this case an error message is generated the first time
  87   //  a string is not found; use wxLogNull to suppress it)
  88   //
  89   // domains are searched in the last to first order, i.e. catalogs
  90   // added later override those added before.
  91   const char *GetString(const char *szOrigString,
  92                         const char *szDomain = NULL) const;
  93
  94 private:
  95   // find catalog by name in a linked list, return NULL if !found
  96   wxMsgCatalog  *FindCatalog(const char *szDomain) const;
  97
  98   wxString       m_strLocale,     // this locale name
  99                  m_strShort;      // short name for the locale
 100
 101   const char    *m_pszOldLocale;  // previous locale from setlocale()
 102   wxLocale      *m_pOldLocale;    // previous wxLocale
 103
 104   wxMsgCatalog  *m_pMsgCat;       // pointer to linked list of catalogs
 105 };
 106
 107 // ----------------------------------------------------------------------------
 108 // global functions
 109 // ----------------------------------------------------------------------------
 110 inline WXDLLEXPORT wxLocale* wxGetLocale() { return g_pLocale; }
 111
 112 // get the translation of the string in the current locale
 113 inline WXDLLEXPORT const char *wxGetTranslation(const char *sz)
 114 {
 115   wxLocale *pLoc = wxGetLocale();
 116   return pLoc == NULL ? sz : pLoc->GetString(sz);
 117 }
 118
 119 #endif
 120         // __INTLH__