Implement HasSelection for the OSX WebKit backend.

[wxWidgets.git] / include / wx / intl.h

diff --git a/include/wx/intl.h b/include/wx/intl.h
index aec71543fb13c3ec2fdc5bd27f82afce5f5a3bf6..418ad3ea00198e2957ae75ae9836560ddf14130b 100644 (file)
--- a/include/wx/intl.h
+++ b/include/wx/intl.h
@@ -1,26 +1,37 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        intl.h
-// Purpose:     Internationalization and localisation for wxWindows
+// Name:        wx/intl.h
+// Purpose:     Internationalization and localisation for wxWidgets

 // Author:      Vadim Zeitlin
 // Author:      Vadim Zeitlin

-// Modified by:
+// Modified by: Michael N. Filippov <michael@idisys.iae.nsk.su>
+//              (2003/09/30 - plural forms support)

 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifndef   __INTLH__
-#define   __INTLH__
-
-#ifdef __GNUG__
-    #pragma interface "intl.h"
-#endif
+#ifndef _WX_INTL_H_
+#define _WX_INTL_H_

 
 #include "wx/defs.h"
 #include "wx/string.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
 
 
 #if wxUSE_INTL
 

+#include "wx/fontenc.h"
+#include "wx/language.h"
+

 // ============================================================================
 // global decls
 // ============================================================================
 // ============================================================================
 // global decls
 // ============================================================================


@@ -29,61 +40,205 @@
 // macros
 // ----------------------------------------------------------------------------
 
 // macros
 // ----------------------------------------------------------------------------
 

-// gettext() style macro (notice that xgettext should be invoked with "-k_"
-// option to extract the strings inside _() from the sources)
-#ifndef WXINTL_NO_GETTEXT_MACRO
-    #define   _(str)  wxGetTranslation(wxT(str))
-#endif
-
-// another one which just marks the strings for extraction, but doesn't
-// perform the translation (use -kwxTRANSLATE with xgettext!)
-#define wxTRANSLATE(str) wxT(str)
-

 // ----------------------------------------------------------------------------
 // forward decls
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // forward decls
 // ----------------------------------------------------------------------------

-class WXDLLEXPORT wxLocale;
-class WXDLLEXPORT wxMsgCatalog;
+
+class WXDLLIMPEXP_FWD_BASE wxLocale;
+class WXDLLIMPEXP_FWD_BASE wxLanguageInfoArray;

 
 // ============================================================================
 // locale support
 // ============================================================================
 
 
 // ============================================================================
 // 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 __WXMSW__
+    wxUint32 WinLang,               // Win32 language identifiers
+             WinSublang;
+#endif // __WXMSW__
+    wxString Description;           // human-readable name of the language
+    wxLayoutDirection LayoutDirection;
+
+#ifdef __WXMSW__
+    // return the LCID corresponding to this language
+    wxUint32 GetLCID() const;
+#endif // __WXMSW__
+
+    // 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 __WXMSW__
+inline wxString wxLanguageInfo::GetLocaleName() const { return CanonicalName; }
+#endif // !__WXMSW__
+
+
+// ----------------------------------------------------------------------------
+// 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
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxLocale: encapsulates all language dependent settings, including current
 //           message catalogs, date, time and currency formats (TODO) &c
 // ----------------------------------------------------------------------------

-class WXDLLEXPORT wxLocale
+
+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
 {
 public:
     // ctor & dtor
     // -----------
 
         // call Init() if you use this ctor

-    wxLocale();
+    wxLocale() { DoCommonInit(); }
+

         // the ctor has a side effect of changing current locale
         // the ctor has a side effect of changing current locale

-    wxLocale(const wxChar *szName,              // name (for messages)
-             const wxChar *szShort = (const wxChar *) NULL,      // dir prefix (for msg files)
-             const wxChar *szLocale = (const wxChar *) NULL,     // locale (for setlocale)
-             bool bLoadDefault = TRUE)        // preload wxstd.mo?
-        { Init(szName, szShort, szLocale, bLoadDefault); }
-        // the same as a function (returns TRUE on success)
-    bool Init(const wxChar *szName,
-              const wxChar *szShort = (const wxChar *) NULL,
-              const wxChar *szLocale = (const wxChar *) NULL,
-              bool bLoadDefault = TRUE);
+    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
         // restores old locale

-    ~wxLocale();
+    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
 
     // returns locale name

-    const wxChar *GetLocale() const { return m_strLocale; }
+    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()!
 
     // 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);
+    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
 
     // add a catalog: it's searched for in standard places (current directory
     // first, system one after), but the you may prepend additional directories to


@@ -92,14 +247,46 @@ public:
     // The loaded catalog will be used for message lookup by GetString().
     //
     // Returns 'true' if it was successfully loaded
     // The loaded catalog will be used for message lookup by GetString().
     //
     // Returns 'true' if it was successfully loaded

-    bool AddCatalog(const wxChar *szDomain);
+    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
 
     // check if the given catalog is loaded

-    bool IsLoaded(const wxChar *szDomain) const;
+    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)
 
     // 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
     //
     // return original string if translation is not available
     // (in this case an error message is generated the first time


@@ -107,23 +294,65 @@ public:
     //
     // domains are searched in the last to first order, i.e. catalogs
     // added later override those added before.
     //
     // domains are searched in the last to first order, i.e. catalogs
     // added later override those added before.

-    const wxMB2WXbuf GetString(const wxChar *szOrigString,
-                              const wxChar *szDomain = (const wxChar *) NULL) const;
+    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; }
 
 
     // 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:
 private:

-    // find catalog by name in a linked list, return NULL if !found
-    wxMsgCatalog  *FindCatalog(const wxChar *szDomain) const;
+    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
+    wxString       m_strLocale,       // this locale name
+                   m_strShort;        // short name for the locale
+    int            m_language;        // this locale wxLanguage value

 
 

-    const wxChar  *m_pszOldLocale;  // previous locale from setlocale()
-    wxLocale      *m_pOldLocale;    // previous wxLocale
+    const char  *m_pszOldLocale;      // previous locale from setlocale()
+    wxLocale      *m_pOldLocale;      // previous wxLocale

 
 

-    wxMsgCatalog  *m_pMsgCat;       // pointer to linked list of catalogs
+    bool           m_initialized;
+
+    wxTranslations m_translations;
+
+    static wxLanguageInfoArray *ms_languagesDB;
+
+    wxDECLARE_NO_COPY_CLASS(wxLocale);

 };
 
 // ----------------------------------------------------------------------------
 };
 
 // ----------------------------------------------------------------------------


@@ -131,27 +360,8 @@ private:
 // ----------------------------------------------------------------------------
 
 // get the current locale object (note that it may be NULL!)
 // ----------------------------------------------------------------------------
 
 // get the current locale object (note that it may be NULL!)

-extern WXDLLEXPORT wxLocale* wxGetLocale();
-
-// get the translation of the string in the current locale
-inline const wxMB2WXbuf wxGetTranslation(const wxChar *sz)
-{
-    wxLocale *pLoc = wxGetLocale();
-    if (pLoc)
-        return pLoc->GetString(sz);
-    else
-        return (const wxMB2WXbuf)sz;
-}
+extern WXDLLIMPEXP_BASE wxLocale* wxGetLocale();

 
 

-#else // !wxUSE_INTL
+#endif // wxUSE_INTL

 
 

-#ifndef WXINTL_NO_GETTEXT_MACRO
-    #define   _(str)  (str)
-#endif
-
-inline const wxChar *wxGetTranslation(const wxChar *sz) { return sz; }
-
-#endif // wxUSE_INTL/!wxUSE_INTL
-
-#endif
-    // _WX_INTLH__
+#endif // _WX_INTL_H_