small optimization in wxConfigPathChanger: don't change the path if it is already...

[wxWidgets.git] / src / common / fontmap.cpp

diff --git a/src/common/fontmap.cpp b/src/common/fontmap.cpp
index 1b981f40e0fca419598ab0c93c3ddee8ed4d79fc..a30c4f14bbcae183bfa307db5698b8e873e57d2d 100644 (file)
--- a/src/common/fontmap.cpp
+++ b/src/common/fontmap.cpp
@@ -5,8 +5,8 @@
 // Modified by:
 // Created:     04.11.99
 // RCS-ID:      $Id$
 // Modified by:
 // Created:     04.11.99
 // RCS-ID:      $Id$

-// Copyright:   (c) Vadim Zeitlin
-// Licence:     wxWindows license
+// Copyright:   (c) 1999-2003 Vadim Zeitlin <vadim@wxwindows.org>
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================


@@ -17,7 +17,7 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

     #pragma implementation "fontmap.h"
 #endif
 
     #pragma implementation "fontmap.h"
 #endif
 


@@ -36,171 +36,113 @@
     #include "wx/intl.h"
 #endif // PCH
 
     #include "wx/intl.h"
 #endif // PCH
 

-#include "wx/fontmap.h"
-

 #if wxUSE_CONFIG
     #include "wx/config.h"
 #if wxUSE_CONFIG
     #include "wx/config.h"

-    #include "wx/memconf.h"
+#endif // wxUSE_CONFIG
+
+#if defined(__WXMSW__)
+  #include  "wx/msw/private.h"  // includes windows.h for LOGFONT
+  #include  "wx/msw/winundef.h"

 #endif
 
 #endif
 

-#if wxUSE_GUI
-    #include "wx/fontutil.h"
-    #include "wx/msgdlg.h"
-    #include "wx/fontdlg.h"
-    #include "wx/choicdlg.h"
-#endif // wxUSE_GUI
+#include "wx/fontmap.h"
+#include "wx/fmappriv.h"
+#include "wx/fontutil.h"
+#include "wx/msgdlg.h"
+#include "wx/fontdlg.h"
+#include "wx/choicdlg.h"

 
 #include "wx/encconv.h"
 
 
 #include "wx/encconv.h"
 

+#if wxUSE_EXTENDED_RTTI
+
+wxBEGIN_ENUM( wxFontEncoding )
+    wxENUM_MEMBER( wxFONTENCODING_SYSTEM )
+    wxENUM_MEMBER( wxFONTENCODING_DEFAULT )
+
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_1 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_2 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_3 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_4 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_5 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_6 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_7 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_8 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_9 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_10 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_11 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_12 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_13 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_14 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_15 )
+    wxENUM_MEMBER( wxFONTENCODING_ISO8859_MAX )
+    wxENUM_MEMBER( wxFONTENCODING_KOI8 )
+    wxENUM_MEMBER( wxFONTENCODING_KOI8_U )
+    wxENUM_MEMBER( wxFONTENCODING_ALTERNATIVE )
+    wxENUM_MEMBER( wxFONTENCODING_BULGARIAN )
+    wxENUM_MEMBER( wxFONTENCODING_CP437 )
+    wxENUM_MEMBER( wxFONTENCODING_CP850 )
+    wxENUM_MEMBER( wxFONTENCODING_CP852 )
+    wxENUM_MEMBER( wxFONTENCODING_CP855 )
+    wxENUM_MEMBER( wxFONTENCODING_CP866 )
+
+    wxENUM_MEMBER( wxFONTENCODING_CP874 )
+    wxENUM_MEMBER( wxFONTENCODING_CP932 )
+    wxENUM_MEMBER( wxFONTENCODING_CP936 )
+    wxENUM_MEMBER( wxFONTENCODING_CP949 )
+    wxENUM_MEMBER( wxFONTENCODING_CP950 )
+    wxENUM_MEMBER( wxFONTENCODING_CP1250 )
+    wxENUM_MEMBER( wxFONTENCODING_CP1251 )
+    wxENUM_MEMBER( wxFONTENCODING_CP1252 )
+    wxENUM_MEMBER( wxFONTENCODING_CP1253 )
+    wxENUM_MEMBER( wxFONTENCODING_CP1254 )
+    wxENUM_MEMBER( wxFONTENCODING_CP1255 )
+    wxENUM_MEMBER( wxFONTENCODING_CP1256 )
+    wxENUM_MEMBER( wxFONTENCODING_CP1257 )
+    wxENUM_MEMBER( wxFONTENCODING_CP12_MAX )
+    wxENUM_MEMBER( wxFONTENCODING_UTF7 )
+    wxENUM_MEMBER( wxFONTENCODING_UTF8 )
+    wxENUM_MEMBER( wxFONTENCODING_GB2312 )
+    wxENUM_MEMBER( wxFONTENCODING_BIG5 )
+    wxENUM_MEMBER( wxFONTENCODING_SHIFT_JIS )
+    wxENUM_MEMBER( wxFONTENCODING_EUC_JP )
+    wxENUM_MEMBER( wxFONTENCODING_UNICODE )
+wxEND_ENUM( wxFontEncoding )
+#endif
+

 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
 
 // the config paths we use
 #if wxUSE_CONFIG
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
 
 // the config paths we use
 #if wxUSE_CONFIG

-static const wxChar* FONTMAPPER_ROOT_PATH = wxT("/wxWindows/FontMapper");
-static const wxChar* FONTMAPPER_CHARSET_PATH = wxT("Charsets");
-static const wxChar* FONTMAPPER_CHARSET_ALIAS_PATH = wxT("Aliases");
-
-// we only ask questions in GUI mode
-#if wxUSE_GUI
-    static const wxChar* FONTMAPPER_FONT_FROM_ENCODING_PATH = wxT("Encodings");
-    static const wxChar* FONTMAPPER_FONT_DONT_ASK = wxT("none");
-#endif // wxUSE_GUI
-#endif // wxUSE_CONFIG
-
-// encodings supported by GetEncodingDescription
-static wxFontEncoding gs_encodings[] =
-{
-    wxFONTENCODING_ISO8859_1,
-    wxFONTENCODING_ISO8859_2,
-    wxFONTENCODING_ISO8859_3,
-    wxFONTENCODING_ISO8859_4,
-    wxFONTENCODING_ISO8859_5,
-    wxFONTENCODING_ISO8859_6,
-    wxFONTENCODING_ISO8859_7,
-    wxFONTENCODING_ISO8859_8,
-    wxFONTENCODING_ISO8859_9,
-    wxFONTENCODING_ISO8859_10,
-    wxFONTENCODING_ISO8859_11,
-    wxFONTENCODING_ISO8859_12,
-    wxFONTENCODING_ISO8859_13,
-    wxFONTENCODING_ISO8859_14,
-    wxFONTENCODING_ISO8859_15,
-    wxFONTENCODING_KOI8,
-    wxFONTENCODING_CP1250,
-    wxFONTENCODING_CP1251,
-    wxFONTENCODING_CP1252,
-    wxFONTENCODING_CP1253,
-    wxFONTENCODING_CP1254,
-    wxFONTENCODING_CP1255,
-    wxFONTENCODING_CP1256,
-    wxFONTENCODING_CP1257,
-    wxFONTENCODING_CP437,
-    wxFONTENCODING_UTF7,
-    wxFONTENCODING_UTF8,
-};
-
-// the descriptions for them
-static const wxChar* gs_encodingDescs[] =
-{
-    wxTRANSLATE( "Western European (ISO-8859-1)" ),
-    wxTRANSLATE( "Central European (ISO-8859-2)" ),
-    wxTRANSLATE( "Esperanto (ISO-8859-3)" ),
-    wxTRANSLATE( "Baltic (old) (ISO-8859-4)" ),
-    wxTRANSLATE( "Cyrillic (ISO-8859-5)" ),
-    wxTRANSLATE( "Arabic (ISO-8859-6)" ),
-    wxTRANSLATE( "Greek (ISO-8859-7)" ),
-    wxTRANSLATE( "Hebrew (ISO-8859-8)" ),
-    wxTRANSLATE( "Turkish (ISO-8859-9)" ),
-    wxTRANSLATE( "Nordic (ISO-8859-10)" ),
-    wxTRANSLATE( "Thai (ISO-8859-11)" ),
-    wxTRANSLATE( "Indian (ISO-8859-12)" ),
-    wxTRANSLATE( "Baltic (ISO-8859-13)" ),
-    wxTRANSLATE( "Celtic (ISO-8859-14)" ),
-    wxTRANSLATE( "Western European with Euro (ISO-8859-15)" ),
-    wxTRANSLATE( "KOI8-R" ),
-    wxTRANSLATE( "Windows Central European (CP 1250)" ),
-    wxTRANSLATE( "Windows Cyrillic (CP 1251)" ),
-    wxTRANSLATE( "Windows Western European (CP 1252)" ),
-    wxTRANSLATE( "Windows Greek (CP 1253)" ),
-    wxTRANSLATE( "Windows Turkish (CP 1254)" ),
-    wxTRANSLATE( "Windows Hebrew (CP 1255)" ),
-    wxTRANSLATE( "Windows Arabic (CP 1256)" ),
-    wxTRANSLATE( "Windows Baltic (CP 1257)" ),
-    wxTRANSLATE( "Windows/DOS OEM (CP 437)" ),
-    wxTRANSLATE( "Unicode 7 bit (UTF-7)" ),
-    wxTRANSLATE( "Unicode 8 bit (UTF-8)" ),
-};

 
 

-// and the internal names
-static const wxChar* gs_encodingNames[] =
-{
-    wxT( "iso-8859-1" ),
-    wxT( "iso-8859-2" ),
-    wxT( "iso-8859-3" ),
-    wxT( "iso-8859-4" ),
-    wxT( "iso-8859-5" ),
-    wxT( "iso-8859-6" ),
-    wxT( "iso-8859-7" ),
-    wxT( "iso-8859-8" ),
-    wxT( "iso-8859-9" ),
-    wxT( "iso-8859-10" ),
-    wxT( "iso-8859-11" ),
-    wxT( "iso-8859-12" ),
-    wxT( "iso-8859-13" ),
-    wxT( "iso-8859-14" ),
-    wxT( "iso-8859-15" ),
-    wxT( "koi8-r" ),
-    wxT( "windows-1250" ),
-    wxT( "windows-1251" ),
-    wxT( "windows-1252" ),
-    wxT( "windows-1253" ),
-    wxT( "windows-1254" ),
-    wxT( "windows-1255" ),
-    wxT( "windows-1256" ),
-    wxT( "windows-1257" ),
-    wxT( "windows-437" ),
-    wxT( "utf7" ),
-    wxT( "utf8" ),
-};
+static const wxChar* FONTMAPPER_FONT_FROM_ENCODING_PATH = wxT("Encodings");
+static const wxChar* FONTMAPPER_FONT_DONT_ASK = wxT("none");

 
 

-// ----------------------------------------------------------------------------
-// global data
-// ----------------------------------------------------------------------------
-
-// private object
-static wxFontMapper gs_fontMapper;
-
-// and public pointer
-wxFontMapper * wxTheFontMapper = &gs_fontMapper;
+#endif // wxUSE_CONFIG

 
 // ----------------------------------------------------------------------------
 // private classes
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // private classes
 // ----------------------------------------------------------------------------
 

-// change the config path during the lifetime of this object
-class wxFontMapperPathChanger
+// it may happen that while we're showing a dialog asking the user about
+// something, another request for an encoding mapping arrives: in this case it
+// is best to not do anything because otherwise we risk to enter an infinite
+// loop so we create an object of this class on stack to test for this in all
+// interactive functions
+class ReentrancyBlocker

 {
 public:
 {
 public:

-    wxFontMapperPathChanger(wxFontMapper *fontMapper, const wxString& path)
-    {
-        m_fontMapper = fontMapper;
-        m_ok = m_fontMapper->ChangePath(path, &m_pathOld);
-    }
-
-    bool IsOk() const { return m_ok; }
-
-    ~wxFontMapperPathChanger()
-    {
-        if ( IsOk() )
-            m_fontMapper->RestorePath(m_pathOld);
-    }
+    ReentrancyBlocker(bool& flag) : m_flagOld(flag), m_flag(flag)
+        { m_flag = true; }
+    ~ReentrancyBlocker() { m_flag = m_flagOld; }

 
 private:
 
 private:

-    wxFontMapper *m_fontMapper;
-    bool          m_ok;
-    wxString      m_pathOld;
+    bool m_flagOld;
+    bool& m_flag;
+
+    DECLARE_NO_COPY_CLASS(ReentrancyBlocker)

 };
 
 // ============================================================================
 };
 
 // ============================================================================


@@ -213,354 +155,28 @@ private:
 
 wxFontMapper::wxFontMapper()
 {
 
 wxFontMapper::wxFontMapper()
 {

-#if wxUSE_CONFIG
-    m_config = NULL;
-    m_configIsDummy = FALSE;
-#endif // wxUSE_CONFIG
-
-#if wxUSE_GUI

     m_windowParent = NULL;
     m_windowParent = NULL;

-#endif // wxUSE_GUI

 }
 
 wxFontMapper::~wxFontMapper()
 {
 }
 
 }
 
 wxFontMapper::~wxFontMapper()
 {
 }
 

-// ----------------------------------------------------------------------------
-// customisation
-// ----------------------------------------------------------------------------
-
-#if wxUSE_CONFIG
-
-/* static */ const wxChar *wxFontMapper::GetDefaultConfigPath()
-{
-    return FONTMAPPER_ROOT_PATH;
-}
-
-void wxFontMapper::SetConfigPath(const wxString& prefix)
-{
-    wxCHECK_RET( !prefix.IsEmpty() && prefix[0] == wxCONFIG_PATH_SEPARATOR,
-                 wxT("an absolute path should be given to wxFontMapper::SetConfigPath()") );
-
-    m_configRootPath = prefix;
-}
-
-// ----------------------------------------------------------------------------
-// get config object and path for it
-// ----------------------------------------------------------------------------
-
-wxConfigBase *wxFontMapper::GetConfig()
-{
-    if ( !m_config )
-    {
-        // try the default
-        m_config = wxConfig::Get(FALSE /*don't create on demand*/ );
-
-        if ( !m_config )
-        {
-            // we still want to have a config object because otherwise we would
-            // keep asking the user the same questions in the interactive mode,
-            // so create a dummy config which won't write to any files/registry
-            // but will allow us to remember the results of the questions at
-            // least during this run
-            m_config = new wxMemoryConfig;
-            m_configIsDummy = TRUE;
-            // VS: we can't call wxConfig::Set(m_config) here because that would
-            //     disable automatic wxConfig instance creation if this code was
-            //     called before wxApp::OnInit (this happens in wxGTK -- it sets
-            //     default wxFont encoding in wxApp::Initialize())
-        }
-    }
-
-    if ( m_configIsDummy && wxConfig::Get(FALSE) != NULL )
-    {
-        // VS: in case we created dummy m_config (see above), we want to switch back
-        //     to the real one as soon as one becomes available.
-        m_config = wxConfig::Get(FALSE);
-        m_configIsDummy = FALSE;
-        // FIXME: ideally, we should add keys from dummy config to the real one now,
-        //        but it is a low-priority task because typical wxWin application
-        //        either doesn't use wxConfig at all or creates wxConfig object in 
-        //        wxApp::OnInit(), before any real interaction with the user takes 
-        //        place...
-    }
-
-    return m_config;
-}
-
-const wxString& wxFontMapper::GetConfigPath()
-{
-    if ( !m_configRootPath )
-    {
-        // use the default
-        m_configRootPath = GetDefaultConfigPath();
-    }
-
-    return m_configRootPath;
-}
-#endif
-
-bool wxFontMapper::ChangePath(const wxString& pathNew, wxString *pathOld)
-{
-#if wxUSE_CONFIG
-    wxConfigBase *config = GetConfig();
-    if ( !config )
-        return FALSE;
-
-    *pathOld = config->GetPath();
-
-    wxString path = GetConfigPath();
-    if ( path.IsEmpty() || path.Last() != wxCONFIG_PATH_SEPARATOR )
-    {
-        path += wxCONFIG_PATH_SEPARATOR;
-    }
-
-    wxASSERT_MSG( !pathNew || (pathNew[0] != wxCONFIG_PATH_SEPARATOR),
-                  wxT("should be a relative path") );
-
-    path += pathNew;
-
-    config->SetPath(path);
-
-    return TRUE;
-#else
-    return FALSE;
-#endif
-}
-
-void wxFontMapper::RestorePath(const wxString& pathOld)
-{
-#if wxUSE_CONFIG
-    GetConfig()->SetPath(pathOld);
-#else
-#endif
-}
-
-// ----------------------------------------------------------------------------
-// charset/encoding correspondence
-// ----------------------------------------------------------------------------
-
-/* static */
-wxString wxFontMapper::GetEncodingDescription(wxFontEncoding encoding)
+wxFontEncoding
+wxFontMapper::CharsetToEncoding(const wxString& charset, bool interactive)

 {
 {

-    if ( encoding == wxFONTENCODING_DEFAULT )
-    {
-        return _("Default encoding");
-    }
-
-    size_t count = WXSIZEOF(gs_encodingDescs);
-
-    wxASSERT_MSG( count == WXSIZEOF(gs_encodings),
-                  wxT("inconsitency detected - forgot to update one of the arrays?") );
-
-    for ( size_t i = 0; i < count; i++ )
-    {
-        if ( gs_encodings[i] == encoding )
-        {
-            return wxGetTranslation(gs_encodingDescs[i]);
-        }
-    }
-
-    wxString str;
-    str.Printf(_("Unknown encoding (%d)"), encoding);
-
-    return str;
-}
-
-/* static */
-wxString wxFontMapper::GetEncodingName(wxFontEncoding encoding)
-{
-    if ( encoding == wxFONTENCODING_DEFAULT )
-    {
-        return _("default");
-    }
-
-    size_t count = WXSIZEOF(gs_encodingNames);
-
-    wxASSERT_MSG( count == WXSIZEOF(gs_encodings),
-                  wxT("inconsistency detected - forgot to update one of the arrays?") );
-
-    for ( size_t i = 0; i < count; i++ )
-    {
-        if ( gs_encodings[i] == encoding )
-        {
-            return wxGetTranslation(gs_encodingNames[i]);
-        }
-    }
-
-    wxString str;
-    str.Printf(_("unknown-%d"), encoding);
-
-    return str;
-}
-
-wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
-                                               bool interactive)
-{
-    // a special pseudo encoding which means "don't ask me about this charset
-    // any more" - we need it to avoid driving the user crazy with asking him
-    // time after time about the same charset which he [presumably] doesn't
-    // have the fonts fot
-    static const int wxFONTENCODING_UNKNOWN = -2;
-
-    wxFontEncoding encoding = wxFONTENCODING_SYSTEM;
-
-    // we're going to modify it, make a copy
-    wxString cs = charset;
-
-#if wxUSE_CONFIG
-    // first try the user-defined settings
-    wxString pathOld;
-    if ( ChangePath(FONTMAPPER_CHARSET_PATH, &pathOld) )
-    {
-        wxConfigBase *config = GetConfig();
-
-        // do we have an encoding for this charset?
-        long value = config->Read(charset, -1l);
-        if ( value != -1 )
-        {
-            if ( value == wxFONTENCODING_UNKNOWN )
-            {
-                // don't try to find it, in particular don't ask the user
-                return wxFONTENCODING_SYSTEM;
-            }
-
-            if ( value >= 0 && value <= wxFONTENCODING_MAX )
-            {
-                encoding = (wxFontEncoding)value;
-            }
-            else
-            {
-                wxLogDebug(wxT("corrupted config data: invalid encoding %ld for charset '%s' ignored"),
-                           value, charset.c_str());
-            }
-        }
-
-        if ( encoding == wxFONTENCODING_SYSTEM )
-        {
-            // may be we have an alias?
-            config->SetPath(FONTMAPPER_CHARSET_ALIAS_PATH);
-
-            wxString alias = config->Read(charset);
-            if ( !!alias )
-            {
-                // yes, we do - use it instead
-                cs = alias;
-            }
-        }
-
-        RestorePath(pathOld);
-    }
-#endif // wxUSE_CONFIG
+    // try the ways not needing the users intervention first
+    int encoding = wxFontMapperBase::NonInteractiveCharsetToEncoding(charset);

 
 

-    // if didn't find it there, try to recognize it ourselves
-    if ( encoding == wxFONTENCODING_SYSTEM )
+    // if we failed to find the encoding, ask the user -- unless disabled
+    if ( encoding == wxFONTENCODING_UNKNOWN )

     {
     {

-        // trim any spaces
-        cs.Trim(TRUE);
-        cs.Trim(FALSE);
-
-        // discard the optional quotes
-        if ( !!cs )
-        {
-            if ( cs[0u] == _T('"') && cs.Last() == _T('"') )
-            {
-                cs = wxString(cs.c_str(), cs.length() - 1);
-            }
-        }
-
-        cs.MakeUpper();
-
-        if ( !cs || cs == wxT("US-ASCII") )
-        {
-            encoding = wxFONTENCODING_DEFAULT;
-        }
-        else if ( cs == wxT("UTF-7") )
-        {
-            encoding = wxFONTENCODING_UTF7;
-        }
-        else if ( cs == wxT("UTF-8") )
-        {
-            encoding = wxFONTENCODING_UTF8;
-        }
-        else if ( cs == wxT("KOI8-R") ||
-                  cs == wxT("KOI8-U") ||
-                  cs == wxT("KOI8-RU") )
-        {
-            // although koi8-ru is not strictly speaking the same as koi8-r,
-            // they are similar enough to make mapping it to koi8 better than
-            // not reckognizing it at all
-            encoding = wxFONTENCODING_KOI8;
-        }
-        else if ( cs.Left(3) == wxT("ISO") )
-        {
-            // the dash is optional (or, to be exact, it is not, but
-            // several brokenmails "forget" it)
-            const wxChar *p = cs.c_str() + 3;
-            if ( *p == wxT('-') )
-                p++;
-
-            unsigned int value;
-            if ( wxSscanf(p, wxT("8859-%u"), &value) == 1 )
-            {
-                // make it 0 based and check that it is strictly positive in
-                // the process (no such thing as iso8859-0 encoding)
-                if ( (value-- > 0) &&
-                     (value < wxFONTENCODING_ISO8859_MAX -
-                              wxFONTENCODING_ISO8859_1) )
-                {
-                    // it's a valid ISO8859 encoding
-                    value += wxFONTENCODING_ISO8859_1;
-                    encoding = (wxFontEncoding)value;
-                }
-            }
-        }
-        else // check for Windows charsets
-        {
-            size_t len;
-            if ( cs.Left(7) == wxT("WINDOWS") )
-            {
-                len = 7;
-            }
-            else if ( cs.Left(2) == wxT("CP") )
-            {
-                len = 2;
-            }
-            else // not a Windows encoding
-            {
-                len = 0;
-            }
-
-            if ( len )
-            {
-                const wxChar *p = cs.c_str() + len;
-                if ( *p == wxT('-') )
-                    p++;
-
-                int value;
-                if ( wxSscanf(p, wxT("%u"), &value) == 1 )
-                {
-                    if ( value >= 1250 )
-                    {
-                        value -= 1250;
-                        if ( value < wxFONTENCODING_CP12_MAX -
-                                     wxFONTENCODING_CP1250 )
-                        {
-                            // a valid Windows code page
-                            value += wxFONTENCODING_CP1250;
-                            encoding = (wxFontEncoding)value;
-                        }
-                    }
-                }
-            }
-        }
-        //else: unknown
+        // this is the special value which disables asking the user (he had
+        // chosen to suppress this the last time)
+        encoding = wxFONTENCODING_SYSTEM;

     }
     }

-
-#if wxUSE_GUI
-    // if still no luck, ask the user - unless disabled
-    if ( (encoding == wxFONTENCODING_SYSTEM) && interactive )
+#if wxUSE_CHOICEDLG
+    else if ( (encoding == wxFONTENCODING_SYSTEM) && interactive )

     {
         // prepare the dialog data
 
     {
         // prepare the dialog data
 


@@ -574,16 +190,13 @@ wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
         msg.Printf(_("The charset '%s' is unknown. You may select\nanother charset to replace it with or choose\n[Cancel] if it cannot be replaced"), charset.c_str());
 
         // the list of choices
         msg.Printf(_("The charset '%s' is unknown. You may select\nanother charset to replace it with or choose\n[Cancel] if it cannot be replaced"), charset.c_str());
 
         // the list of choices

-        size_t count = WXSIZEOF(gs_encodingDescs);
-
-        wxASSERT_MSG( count == WXSIZEOF(gs_encodings),
-                      wxT("inconsitency detected - forgot to update one of the arrays?") );
+        const size_t count = GetSupportedEncodingsCount();

 
         wxString *encodingNamesTranslated = new wxString[count];
 
         for ( size_t i = 0; i < count; i++ )
         {
 
         wxString *encodingNamesTranslated = new wxString[count];
 
         for ( size_t i = 0; i < count; i++ )
         {

-            encodingNamesTranslated[i] = wxGetTranslation(gs_encodingDescs[i]);
+            encodingNamesTranslated[i] = GetEncodingDescription(GetEncoding(i));

         }
 
         // the parent window
         }
 
         // the parent window


@@ -601,30 +214,31 @@ wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
 
         if ( n != -1 )
         {
 
         if ( n != -1 )
         {

-            encoding = gs_encodings[n];
+            encoding = GetEncoding(n);

         }
 
         }
 

-#if wxUSE_CONFIG
+#if wxUSE_CONFIG && wxUSE_FILECONFIG

         // save the result in the config now
         // save the result in the config now

-        if ( ChangePath(FONTMAPPER_CHARSET_PATH, &pathOld) )
+        wxFontMapperPathChanger path(this, FONTMAPPER_CHARSET_PATH);
+        if ( path.IsOk() )

         {
             wxConfigBase *config = GetConfig();
 
         {
             wxConfigBase *config = GetConfig();
 

-            // remember the alt encoding for this charset - or remember that
+            // remember the alt encoding for this charset -- or remember that

             // we don't know it
             long value = n == -1 ? wxFONTENCODING_UNKNOWN : (long)encoding;
             if ( !config->Write(charset, value) )
             {
                 wxLogError(_("Failed to remember the encoding for the charset '%s'."), charset.c_str());
             }
             // we don't know it
             long value = n == -1 ? wxFONTENCODING_UNKNOWN : (long)encoding;
             if ( !config->Write(charset, value) )
             {
                 wxLogError(_("Failed to remember the encoding for the charset '%s'."), charset.c_str());
             }

-
-            RestorePath(pathOld);

         }
 #endif // wxUSE_CONFIG
     }
         }
 #endif // wxUSE_CONFIG
     }

-#endif // wxUSE_GUI
+#else
+    wxUnusedVar(interactive);
+#endif // wxUSE_CHOICEDLG

 
 

-    return encoding;
+    return (wxFontEncoding)encoding;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -633,8 +247,6 @@ wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
 // correspond to which is used by GetFontForEncoding() function
 // ----------------------------------------------------------------------------
 
 // correspond to which is used by GetFontForEncoding() function
 // ----------------------------------------------------------------------------
 

-#if wxUSE_GUI
-

 bool wxFontMapper::TestAltEncoding(const wxString& configEntry,
                                    wxFontEncoding encReplacement,
                                    wxNativeEncodingInfo *info)
 bool wxFontMapper::TestAltEncoding(const wxString& configEntry,
                                    wxFontEncoding encReplacement,
                                    wxNativeEncodingInfo *info)


@@ -642,7 +254,7 @@ bool wxFontMapper::TestAltEncoding(const wxString& configEntry,
     if ( wxGetNativeFontEncoding(encReplacement, info) &&
          wxTestFontEncoding(*info) )
     {
     if ( wxGetNativeFontEncoding(encReplacement, info) &&
          wxTestFontEncoding(*info) )
     {

-#if wxUSE_CONFIG
+#if wxUSE_CONFIG && wxUSE_FILECONFIG

         // remember the mapping in the config
         wxFontMapperPathChanger path(this, FONTMAPPER_FONT_FROM_ENCODING_PATH);
 
         // remember the mapping in the config
         wxFontMapperPathChanger path(this, FONTMAPPER_FONT_FROM_ENCODING_PATH);
 


@@ -650,25 +262,15 @@ bool wxFontMapper::TestAltEncoding(const wxString& configEntry,
         {
             GetConfig()->Write(configEntry, info->ToString());
         }
         {
             GetConfig()->Write(configEntry, info->ToString());
         }

+#else
+        wxUnusedVar(configEntry);

 #endif // wxUSE_CONFIG
 #endif // wxUSE_CONFIG

-        return TRUE;
+        return true;

     }
 
     }
 

-    return FALSE;
+    return false;

 }
 
 }
 

-#if wxUSE_GUI
-class ReentrancyBlocker
-{
-public:
-    ReentrancyBlocker(bool& b) : m_b(b) { m_b = TRUE; }
-    ~ReentrancyBlocker() { m_b = FALSE; }
-
-private:
-    bool& m_b;
-};
-#endif
-

 bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
                                      wxNativeEncodingInfo *info,
                                      const wxString& facename,
 bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
                                      wxNativeEncodingInfo *info,
                                      const wxString& facename,


@@ -679,20 +281,20 @@ bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
     // example, when GetAltForEncoding() is called from an OnPaint() handler:
     // in this case, wxYield() which is called from wxMessageBox() we use here
     // will lead to another call of OnPaint() and hence to another call of
     // example, when GetAltForEncoding() is called from an OnPaint() handler:
     // in this case, wxYield() which is called from wxMessageBox() we use here
     // will lead to another call of OnPaint() and hence to another call of

-    // GetAltForEncoding() - and it is impossible to catch this from the user
+    // GetAltForEncoding() -- and it is impossible to catch this from the user

     // code because we are called from wxFont ctor implicitly.
 
     // assume we're always called from the main thread, so that it is safe to
     // use a static var
     // code because we are called from wxFont ctor implicitly.
 
     // assume we're always called from the main thread, so that it is safe to
     // use a static var

-    static bool s_inGetAltForEncoding = FALSE;
+    static bool s_inGetAltForEncoding = false;

 
     if ( interactive && s_inGetAltForEncoding )
 
     if ( interactive && s_inGetAltForEncoding )

-        return FALSE;
+        return false;

 
     ReentrancyBlocker blocker(s_inGetAltForEncoding);
 #endif // wxUSE_GUI
 
 
     ReentrancyBlocker blocker(s_inGetAltForEncoding);
 #endif // wxUSE_GUI
 

-    wxCHECK_MSG( info, FALSE, wxT("bad pointer in GetAltForEncoding") );
+    wxCHECK_MSG( info, false, wxT("bad pointer in GetAltForEncoding") );

 
     info->facename = facename;
 
 
     info->facename = facename;
 


@@ -702,72 +304,93 @@ bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
     }
 
     // if we failed to load the system default encoding, something is really
     }
 
     // if we failed to load the system default encoding, something is really

-    // wrong and we'd better stop now - otherwise we will go into endless
+    // wrong and we'd better stop now -- otherwise we will go into endless

     // recursion trying to create the font in the msg box with the error
     // message
     if ( encoding == wxFONTENCODING_SYSTEM )
     {
     // recursion trying to create the font in the msg box with the error
     // message
     if ( encoding == wxFONTENCODING_SYSTEM )
     {

-        wxFatalError(_("can't load any font, aborting"));
+        wxLogFatalError(_("can't load any font, aborting"));

 
 

-        // wxFatalError doesn't return
+        // wxLogFatalError doesn't return

     }
 
     }
 

-    wxString configEntry, encName = GetEncodingName(encoding);
-    if ( !!facename )
+    wxString configEntry,
+             encName = GetEncodingName(encoding);
+    if ( !facename.IsEmpty() )

     {
         configEntry = facename + _T("_");
     }
     configEntry += encName;
 
     {
         configEntry = facename + _T("_");
     }
     configEntry += encName;
 

-#if wxUSE_CONFIG
+#if wxUSE_CONFIG && wxUSE_FILECONFIG

     // do we have a font spec for this encoding?
     // do we have a font spec for this encoding?

-    wxString pathOld;
-    if ( ChangePath(FONTMAPPER_FONT_FROM_ENCODING_PATH, &pathOld) )
+    wxString fontinfo;
+    wxFontMapperPathChanger path(this, FONTMAPPER_FONT_FROM_ENCODING_PATH);
+    if ( path.IsOk() )

     {
     {

-        wxConfigBase *config = GetConfig();
-
-        wxString fontinfo = config->Read(configEntry);
-
-        RestorePath(pathOld);
+        fontinfo = GetConfig()->Read(configEntry);
+    }

 
 

-        // this special value means that we don't know of fonts for this
-        // encoding but, moreover, have already asked the user as well and he
-        // didn't specify any font neither
-        if ( fontinfo == FONTMAPPER_FONT_DONT_ASK )
+    // this special value means that we don't know of fonts for this
+    // encoding but, moreover, have already asked the user as well and he
+    // didn't specify any font neither
+    if ( fontinfo == FONTMAPPER_FONT_DONT_ASK )
+    {
+        interactive = false;
+    }
+    else // use the info entered the last time
+    {
+        if ( !fontinfo.IsEmpty() && !facename.IsEmpty() )

         {
         {

-            interactive = FALSE;
+            // we tried to find a match with facename -- now try without it
+            fontinfo = GetConfig()->Read(encName);

         }
         }

-        else // use the info entered the last time
-        {
-            if ( !!fontinfo && !!facename )
-            {
-                // we tried to find a match with facename - now try without it
-                fontinfo = config->Read(encName);
-            }

 
 

-            if ( !!fontinfo )
+        if ( !fontinfo.IsEmpty() )
+        {
+            if ( info->FromString(fontinfo) )

             {
             {

-                if ( info->FromString(fontinfo) )
-                {
-                    if ( wxTestFontEncoding(*info) )
-                    {
-                        // ok, got something
-                        return TRUE;
-                    }
-                    //else: no such fonts, look for something else
-                    //      (should we erase the outdated value?)
-                }
-                else
+                if ( wxTestFontEncoding(*info) )

                 {
                 {

-                    wxLogDebug(wxT("corrupted config data: string '%s' is not a valid font encoding info"),
-                               fontinfo.c_str());
+                    // ok, got something
+                    return true;

                 }
                 }

+                //else: no such fonts, look for something else
+                //      (should we erase the outdated value?)
+            }
+            else
+            {
+                wxLogDebug(wxT("corrupted config data: string '%s' is not a valid font encoding info"),
+                           fontinfo.c_str());

             }
             }

-            //else: there is no information in config about this encoding

         }
         }

+        //else: there is no information in config about this encoding

     }
 #endif // wxUSE_CONFIG
 
     }
 #endif // wxUSE_CONFIG
 

+    // now try to map this encoding to a compatible one which we have on this
+    // system
+    wxFontEncodingArray equiv = wxEncodingConverter::GetAllEquivalents(encoding);
+    size_t count = equiv.GetCount();
+    bool foundEquivEncoding = false;
+    wxFontEncoding equivEncoding = wxFONTENCODING_SYSTEM;
+    if ( count )
+    {
+        for ( size_t i = 0; i < count && !foundEquivEncoding; i++ )
+        {
+            // don't test for encoding itself, we already know we don't have it
+            if ( equiv[i] == encoding )
+                continue;
+
+            if ( TestAltEncoding(configEntry, equiv[i], info) )
+            {
+                equivEncoding = equiv[i];
+
+                foundEquivEncoding = true;
+            }
+        }
+    }
+

     // ask the user
 #if wxUSE_FONTDLG
     if ( interactive )
     // ask the user
 #if wxUSE_FONTDLG
     if ( interactive )


@@ -776,85 +399,99 @@ bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
         if ( !title )
             title << wxTheApp->GetAppName() << _(": unknown encoding");
 
         if ( !title )
             title << wxTheApp->GetAppName() << _(": unknown encoding");
 

-        // the message
-        wxString msg;
-        msg.Printf(_("No font for displaying text in encoding '%s' found.\nWould you like to select a font to be used for this encoding\n(otherwise the text in this encoding will not be shown correctly)?"),
-                     GetEncodingDescription(encoding).c_str());
+        // built the message
+        wxString encDesc = GetEncodingDescription(encoding),
+                 msg;
+        if ( foundEquivEncoding )
+        {
+            // ask the user if he wants to override found alternative encoding
+            msg.Printf(_("No font for displaying text in encoding '%s' found,\nbut an alternative encoding '%s' is available.\nDo you want to use this encoding (otherwise you will have to choose another one)?"),
+                       encDesc.c_str(), GetEncodingDescription(equivEncoding).c_str());
+        }
+        else
+        {
+            msg.Printf(_("No font for displaying text in encoding '%s' found.\nWould you like to select a font to be used for this encoding\n(otherwise the text in this encoding will not be shown correctly)?"),
+                       encDesc.c_str());
+        }

 
 

-        wxWindow *parent = m_windowParent;
-        if ( !parent )
-            parent = wxTheApp->GetTopWindow();
+        // the question is different in 2 cases so the answer has to be
+        // interpreted differently as well
+        int answer = foundEquivEncoding ? wxNO : wxYES;

 
         if ( wxMessageBox(msg, title,
 
         if ( wxMessageBox(msg, title,

-                          wxICON_QUESTION | wxYES_NO, parent) == wxYES )
+                          wxICON_QUESTION | wxYES_NO,
+                          m_windowParent) == answer )

         {
             wxFontData data;
             data.SetEncoding(encoding);
             data.EncodingInfo() = *info;
         {
             wxFontData data;
             data.SetEncoding(encoding);
             data.EncodingInfo() = *info;

-            wxFontDialog dialog(parent, &data);
+            wxFontDialog dialog(m_windowParent, data);

             if ( dialog.ShowModal() == wxID_OK )
             {
                 wxFontData retData = dialog.GetFontData();
                 wxFont font = retData.GetChosenFont();
 
                 *info = retData.EncodingInfo();
             if ( dialog.ShowModal() == wxID_OK )
             {
                 wxFontData retData = dialog.GetFontData();
                 wxFont font = retData.GetChosenFont();
 
                 *info = retData.EncodingInfo();

-                info -> encoding = retData.GetEncoding();
+                info->encoding = retData.GetEncoding();

 
 

-#if wxUSE_CONFIG
+#if wxUSE_CONFIG && wxUSE_FILECONFIG

                 // remember this in the config
                 // remember this in the config

-                if ( ChangePath(FONTMAPPER_FONT_FROM_ENCODING_PATH, &pathOld) )
+                wxFontMapperPathChanger path(this,
+                                             FONTMAPPER_FONT_FROM_ENCODING_PATH);
+                if ( path.IsOk() )

                 {
                     GetConfig()->Write(configEntry, info->ToString());
                 {
                     GetConfig()->Write(configEntry, info->ToString());

-
-                    RestorePath(pathOld);

                 }
 #endif // wxUSE_CONFIG
 
                 }
 #endif // wxUSE_CONFIG
 

-                return TRUE;
+                return true;

             }
             //else: the user canceled the font selection dialog
         }
         else
         {
             }
             //else: the user canceled the font selection dialog
         }
         else
         {

-            // the user doesn't want to select a font for this encoding,
+            // the user doesn't want to select a font for this encoding
+            // or selected to use equivalent encoding
+            //

             // remember it to avoid asking the same question again later
             // remember it to avoid asking the same question again later

-#if wxUSE_CONFIG
-            if ( ChangePath(FONTMAPPER_FONT_FROM_ENCODING_PATH, &pathOld) )
+#if wxUSE_CONFIG && wxUSE_FILECONFIG
+            wxFontMapperPathChanger path(this,
+                                         FONTMAPPER_FONT_FROM_ENCODING_PATH);
+            if ( path.IsOk() )

             {
             {

-                GetConfig()->Write(configEntry, FONTMAPPER_FONT_DONT_ASK);
-
-                RestorePath(pathOld);
+                GetConfig()->Write
+                             (
+                                configEntry,
+                                foundEquivEncoding ? info->ToString().c_str()
+                                                   : FONTMAPPER_FONT_DONT_ASK
+                             );

             }
 #endif // wxUSE_CONFIG
         }
     }
     //else: we're in non-interactive mode
             }
 #endif // wxUSE_CONFIG
         }
     }
     //else: we're in non-interactive mode

+#else
+    wxUnusedVar(equivEncoding);

 #endif // wxUSE_FONTDLG
 
 #endif // wxUSE_FONTDLG
 

-    // now try the default mappings:
-    wxFontEncodingArray equiv = wxEncodingConverter::GetAllEquivalents(encoding);
-    size_t count = equiv.GetCount();
-    if ( count )
-    {
-        for ( size_t i = (equiv[0] == encoding) ? 1 : 0; i < count; i++ )
-        {
-            if ( TestAltEncoding(configEntry, equiv[i], info) )
-                return TRUE;
-        }
-    }
-
-    return FALSE;
+    return foundEquivEncoding;

 }
 
 bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
 }
 
 bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,

-                                     wxFontEncoding *alt_encoding,
+                                     wxFontEncoding *encodingAlt,

                                      const wxString& facename,
                                      bool interactive)
 {
     wxNativeEncodingInfo info;
                                      const wxString& facename,
                                      bool interactive)
 {
     wxNativeEncodingInfo info;

-    bool r = GetAltForEncoding(encoding, &info, facename, interactive);
-    *alt_encoding = info.encoding;
-    return r;
+    if ( !GetAltForEncoding(encoding, &info, facename, interactive) )
+        return false;
+
+    wxCHECK_MSG( encodingAlt, false,
+                    _T("wxFontEncoding::GetAltForEncoding(): NULL pointer") );
+
+    *encodingAlt = info.encoding;
+
+    return true;

 }
 
 bool wxFontMapper::IsEncodingAvailable(wxFontEncoding encoding,
 }
 
 bool wxFontMapper::IsEncodingAvailable(wxFontEncoding encoding,


@@ -862,15 +499,11 @@ bool wxFontMapper::IsEncodingAvailable(wxFontEncoding encoding,
 {
     wxNativeEncodingInfo info;
 
 {
     wxNativeEncodingInfo info;
 

-    if (wxGetNativeFontEncoding(encoding, &info))
-    {
-        info.facename = facename;
-        return wxTestFontEncoding(info);
-    }
+    if ( !wxGetNativeFontEncoding(encoding, &info) )
+        return false;

 
 

-    return FALSE;
+    info.facename = facename;
+    return wxTestFontEncoding(info);

 }
 
 }
 

-#endif // wxUSE_GUI
-

 #endif // wxUSE_FONTMAP
 #endif // wxUSE_FONTMAP