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 size_t8;
  32 typedef unsigned long size_t32;
  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     // call Init() if you use this ctor
  61   wxLocale();
  62     // the ctor has a side effect of changing current locale
  63   wxLocale(const char *szName,              // name (for messages)
  64            const char *szShort = (const char *) NULL,      // dir prefix (for msg files)
  65            const char *szLocale = (const char *) NULL,     // locale (for setlocale)
  66            bool bLoadDefault = TRUE)        // preload wxstd.mo?
  67     { Init(szName, szShort, szLocale, bLoadDefault); }
  68     // the same as a function (returns TRUE on success)
  69   bool Init(const char *szName,
  70             const char *szShort = (const char *) NULL,
  71             const char *szLocale = (const char *) NULL,
  72             bool bLoadDefault = TRUE);
  73     // restores old locale
  74  ~wxLocale();
  75
  76   // returns locale name
  77   const char *GetLocale() const { return m_strLocale; }
  78
  79   // add a catalog: it's searched for in standard places (current directory
  80   // first, system one after). It will be used for message lookup by
  81   // GetString().
  82   //
  83   // Returns 'true' if it was successfully loaded
  84   bool AddCatalog(const char *szDomain);
  85
  86   // check if the given catalog is loaded
  87   bool IsLoaded(const char *szDomain) const;
  88
  89   // retrieve the translation for a string in all loaded domains unless
  90   // the szDomain parameter is specified (and then only this domain is
  91   // searched)
  92   //
  93   // return original string if translation is not available
  94   // (in this case an error message is generated the first time
  95   //  a string is not found; use wxLogNull to suppress it)
  96   //
  97   // domains are searched in the last to first order, i.e. catalogs
  98   // added later override those added before.
  99   const char *GetString(const char *szOrigString,
 100                         const char *szDomain = (const char *) NULL) const;
 101
 102 private:
 103   // find catalog by name in a linked list, return NULL if !found
 104   wxMsgCatalog  *FindCatalog(const char *szDomain) const;
 105
 106   wxString       m_strLocale,     // this locale name
 107                  m_strShort;      // short name for the locale
 108
 109   const char    *m_pszOldLocale;  // previous locale from setlocale()
 110   wxLocale      *m_pOldLocale;    // previous wxLocale
 111
 112   wxMsgCatalog  *m_pMsgCat;       // pointer to linked list of catalogs
 113 };
 114
 115 // ----------------------------------------------------------------------------
 116 // global functions
 117 // ----------------------------------------------------------------------------
 118 wxLocale* WXDLLEXPORT wxGetLocale();
 119
 120 // get the translation of the string in the current locale
 121 inline WXDLLEXPORT const char *wxGetTranslation(const char *sz)
 122 {
 123   wxLocale *pLoc = wxGetLocale();
 124   return pLoc == (wxLocale *) NULL ? sz : pLoc->GetString(sz);
 125 }
 126
 127 #endif
 128         // _WX_INTLH__