check for wxOnAssert reentrancy

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

diff --git a/src/common/fontmap.cpp b/src/common/fontmap.cpp
index 05b1edd2abc9fdcfccb57be33b6955fe4f1adb05..0ef4622bdf1255edbb79e6c1aa50bfd5b0e247ea 100644 (file)
--- a/src/common/fontmap.cpp
+++ b/src/common/fontmap.cpp
@@ -28,6 +28,8 @@
     #pragma hdrstop
 #endif
 
     #pragma hdrstop
 #endif
 

+#if wxUSE_FONTMAP
+

 #ifndef WX_PRECOMP
     #include "wx/app.h"
     #include "wx/log.h"
 #ifndef WX_PRECOMP
     #include "wx/app.h"
     #include "wx/log.h"


@@ -35,11 +37,19 @@
 #endif // PCH
 
 #include "wx/fontmap.h"
 #endif // PCH
 
 #include "wx/fontmap.h"

-#include "wx/config.h"

 
 

-#include "wx/msgdlg.h"
-#include "wx/fontdlg.h"
-#include "wx/choicdlg.h"
+#if wxUSE_CONFIG
+    #include "wx/config.h"
+    #include "wx/memconf.h"
+#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/encconv.h"
 
 // ----------------------------------------------------------------------------
 #include "wx/encconv.h"
 
 // ----------------------------------------------------------------------------


@@ -47,10 +57,17 @@
 // ----------------------------------------------------------------------------
 
 // the config paths we use
 // ----------------------------------------------------------------------------
 
 // the config paths we use

-static const wxChar* FONTMAPPER_ROOT_PATH = wxT("FontMapper");
+#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");
 static const wxChar* FONTMAPPER_CHARSET_PATH = wxT("Charsets");
 static const wxChar* FONTMAPPER_CHARSET_ALIAS_PATH = wxT("Aliases");

-static const wxChar* FONTMAPPER_FONT_FROM_ENCODING_PATH = wxT("Encodings");
+
+// 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[] =
 
 // encodings supported by GetEncodingDescription
 static wxFontEncoding gs_encodings[] =


@@ -79,64 +96,73 @@ static wxFontEncoding gs_encodings[] =
     wxFONTENCODING_CP1255,
     wxFONTENCODING_CP1256,
     wxFONTENCODING_CP1257,
     wxFONTENCODING_CP1255,
     wxFONTENCODING_CP1256,
     wxFONTENCODING_CP1257,

+    wxFONTENCODING_CP437,
+    wxFONTENCODING_UTF7,
+    wxFONTENCODING_UTF8,

 };
 
 // the descriptions for them
 static const wxChar* gs_encodingDescs[] =
 {
 };
 
 // the descriptions for them
 static const wxChar* gs_encodingDescs[] =
 {

-    wxTRANSLATE( "West European (ISO-8859-1/Latin 1)" ),
-    wxTRANSLATE( "Central European (ISO-8859-2/Latin 2)" ),
+    wxTRANSLATE( "Western European (ISO-8859-1)" ),
+    wxTRANSLATE( "Central European (ISO-8859-2)" ),

     wxTRANSLATE( "Esperanto (ISO-8859-3)" ),
     wxTRANSLATE( "Esperanto (ISO-8859-3)" ),

-    wxTRANSLATE( "Baltic (ISO-8859-4)" ),
-    wxTRANSLATE( "Cyrillic (Latin 5)" ),
+    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( "Arabic (ISO-8859-6)" ),
     wxTRANSLATE( "Greek (ISO-8859-7)" ),
     wxTRANSLATE( "Hebrew (ISO-8859-8)" ),
     wxTRANSLATE( "Turkish (ISO-8859-9)" ),

-    wxTRANSLATE( "Baltic II (ISO-8859-10)" ),
+    wxTRANSLATE( "Nordic (ISO-8859-10)" ),

     wxTRANSLATE( "Thai (ISO-8859-11)" ),
     wxTRANSLATE( "Thai (ISO-8859-11)" ),

-    wxTRANSLATE( "ISO-8859-12" ),
-    wxTRANSLATE( "ISO-8859-13" ),
-    wxTRANSLATE( "ISO-8859-14" ),
-    wxTRANSLATE( "West European new (ISO-8859-15/Latin 0)" ),
+    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( "KOI8-R" ),

-    wxTRANSLATE( "Windows Latin 2 (CP 1250)" ),
+    wxTRANSLATE( "Windows Central European (CP 1250)" ),

     wxTRANSLATE( "Windows Cyrillic (CP 1251)" ),
     wxTRANSLATE( "Windows Cyrillic (CP 1251)" ),

-    wxTRANSLATE( "Windows Latin 1 (CP 1252)" ),
+    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 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
+// and the internal names (these are not translated on purpose!)

 static const wxChar* gs_encodingNames[] =
 {
 static const wxChar* gs_encodingNames[] =
 {

-    wxT( "iso8859-1" ),
-    wxT( "iso8859-2" ),
-    wxT( "iso8859-3" ),
-    wxT( "iso8859-4" ),
-    wxT( "iso8859-5" ),
-    wxT( "iso8859-6" ),
-    wxT( "iso8859-7" ),
-    wxT( "iso8859-8" ),
-    wxT( "iso8859-9" ),
-    wxT( "iso8859-10" ),
-    wxT( "iso8859-11" ),
-    wxT( "iso8859-12" ),
-    wxT( "iso8859-13" ),
-    wxT( "iso8859-14" ),
-    wxT( "iso8859-15" ),
+    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( "koi8-r" ),

-    wxT( "windows1250" ),
-    wxT( "windows1251" ),
-    wxT( "windows1252" ),
-    wxT( "windows1253" ),
-    wxT( "windows1254" ),
-    wxT( "windows1255" ),
-    wxT( "windows1256" ),
-    wxT( "windows1257" ),
+    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( "utf-7" ),
+    wxT( "utf-8" ),

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


@@ -187,8 +213,14 @@ private:
 
 wxFontMapper::wxFontMapper()
 {
 
 wxFontMapper::wxFontMapper()
 {

+#if wxUSE_CONFIG

     m_config = NULL;
     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()


@@ -199,6 +231,8 @@ wxFontMapper::~wxFontMapper()
 // customisation
 // ----------------------------------------------------------------------------
 
 // customisation
 // ----------------------------------------------------------------------------
 

+#if wxUSE_CONFIG
+

 /* static */ const wxChar *wxFontMapper::GetDefaultConfigPath()
 {
     return FONTMAPPER_ROOT_PATH;
 /* static */ const wxChar *wxFontMapper::GetDefaultConfigPath()
 {
     return FONTMAPPER_ROOT_PATH;


@@ -207,13 +241,11 @@ wxFontMapper::~wxFontMapper()
 void wxFontMapper::SetConfigPath(const wxString& prefix)
 {
     wxCHECK_RET( !prefix.IsEmpty() && prefix[0] == wxCONFIG_PATH_SEPARATOR,
 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()") );
+                 wxT("an absolute path should be given to wxFontMapper::SetConfigPath()") );

 
     m_configRootPath = prefix;
 }
 
 
     m_configRootPath = prefix;
 }
 

-

 // ----------------------------------------------------------------------------
 // get config object and path for it
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // get config object and path for it
 // ----------------------------------------------------------------------------


@@ -223,7 +255,35 @@ wxConfigBase *wxFontMapper::GetConfig()
     if ( !m_config )
     {
         // try the default
     if ( !m_config )
     {
         // try the default

-        m_config = wxConfig::Get();
+        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;
     }
 
     return m_config;


@@ -239,9 +299,11 @@ const wxString& wxFontMapper::GetConfigPath()
 
     return m_configRootPath;
 }
 
     return m_configRootPath;
 }

+#endif

 
 bool wxFontMapper::ChangePath(const wxString& pathNew, wxString *pathOld)
 {
 
 bool wxFontMapper::ChangePath(const wxString& pathNew, wxString *pathOld)
 {

+#if wxUSE_CONFIG

     wxConfigBase *config = GetConfig();
     if ( !config )
         return FALSE;
     wxConfigBase *config = GetConfig();
     if ( !config )
         return FALSE;


@@ -262,11 +324,17 @@ bool wxFontMapper::ChangePath(const wxString& pathNew, wxString *pathOld)
     config->SetPath(path);
 
     return TRUE;
     config->SetPath(path);
 
     return TRUE;

+#else
+    return FALSE;
+#endif

 }
 
 void wxFontMapper::RestorePath(const wxString& pathOld)
 {
 }
 
 void wxFontMapper::RestorePath(const wxString& pathOld)
 {

+#if wxUSE_CONFIG

     GetConfig()->SetPath(pathOld);
     GetConfig()->SetPath(pathOld);

+#else
+#endif

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


@@ -276,11 +344,15 @@ void wxFontMapper::RestorePath(const wxString& pathOld)
 /* static */
 wxString wxFontMapper::GetEncodingDescription(wxFontEncoding encoding)
 {
 /* static */
 wxString wxFontMapper::GetEncodingDescription(wxFontEncoding encoding)
 {

+    if ( encoding == wxFONTENCODING_DEFAULT )
+    {
+        return _("Default encoding");
+    }
+

     size_t count = WXSIZEOF(gs_encodingDescs);
 
     wxASSERT_MSG( count == WXSIZEOF(gs_encodings),
     size_t count = WXSIZEOF(gs_encodingDescs);
 
     wxASSERT_MSG( count == WXSIZEOF(gs_encodings),

-                  wxT("inconsitency detected - forgot to update one of "
-                     "the arrays?") );
+                  wxT("inconsitency detected - forgot to update one of the arrays?") );

 
     for ( size_t i = 0; i < count; i++ )
     {
 
     for ( size_t i = 0; i < count; i++ )
     {


@@ -299,17 +371,21 @@ wxString wxFontMapper::GetEncodingDescription(wxFontEncoding encoding)
 /* static */
 wxString wxFontMapper::GetEncodingName(wxFontEncoding encoding)
 {
 /* static */
 wxString wxFontMapper::GetEncodingName(wxFontEncoding encoding)
 {

+    if ( encoding == wxFONTENCODING_DEFAULT )
+    {
+        return _("default");
+    }
+

     size_t count = WXSIZEOF(gs_encodingNames);
 
     wxASSERT_MSG( count == WXSIZEOF(gs_encodings),
     size_t count = WXSIZEOF(gs_encodingNames);
 
     wxASSERT_MSG( count == WXSIZEOF(gs_encodings),

-                  wxT("inconsitency detected - forgot to update one of "
-                     "the arrays?") );
+                  wxT("inconsistency detected - forgot to update one of the arrays?") );

 
     for ( size_t i = 0; i < count; i++ )
     {
         if ( gs_encodings[i] == encoding )
         {
 
     for ( size_t i = 0; i < count; i++ )
     {
         if ( gs_encodings[i] == encoding )
         {

-            return wxGetTranslation(gs_encodingNames[i]);
+            return gs_encodingNames[i];

         }
     }
 
         }
     }
 


@@ -322,11 +398,18 @@ wxString wxFontMapper::GetEncodingName(wxFontEncoding encoding)
 wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
                                                bool interactive)
 {
 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;
 
     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) )
     // first try the user-defined settings
     wxString pathOld;
     if ( ChangePath(FONTMAPPER_CHARSET_PATH, &pathOld) )


@@ -337,14 +420,20 @@ wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
         long value = config->Read(charset, -1l);
         if ( value != -1 )
         {
         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
             {
             if ( value >= 0 && value <= wxFONTENCODING_MAX )
             {
                 encoding = (wxFontEncoding)value;
             }
             else
             {

-                wxLogDebug(wxT("corrupted config data - invalid encoding %ld "
-                              "for charset '%s'"), value, charset.c_str());
+                wxLogDebug(wxT("corrupted config data: invalid encoding %ld for charset '%s' ignored"),
+                           value, charset.c_str());

             }
         }
 
             }
         }
 


@@ -363,16 +452,47 @@ wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
 
         RestorePath(pathOld);
     }
 
         RestorePath(pathOld);
     }

+#endif // wxUSE_CONFIG

 
 

-    // if didn't find it there, try to reckognise it ourselves
+    // if didn't find it there, try to recognize it ourselves

     if ( encoding == wxFONTENCODING_SYSTEM )
     {
     if ( encoding == wxFONTENCODING_SYSTEM )
     {

+        // 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") )
         cs.MakeUpper();
 
         if ( !cs || cs == wxT("US-ASCII") )

+        {

             encoding = wxFONTENCODING_DEFAULT;
             encoding = wxFONTENCODING_DEFAULT;

-        else if ( cs == wxT("KOI8-R") || cs == wxT("KOI8-U") )
+        }
+        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;
             encoding = wxFONTENCODING_KOI8;

+        }

         else if ( cs.Left(3) == wxT("ISO") )
         {
             // the dash is optional (or, to be exact, it is not, but
         else if ( cs.Left(3) == wxT("ISO") )
         {
             // the dash is optional (or, to be exact, it is not, but


@@ -384,29 +504,53 @@ wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
             unsigned int value;
             if ( wxSscanf(p, wxT("8859-%u"), &value) == 1 )
             {
             unsigned int value;
             if ( wxSscanf(p, wxT("8859-%u"), &value) == 1 )
             {

-                if ( value < wxFONTENCODING_ISO8859_MAX -
-                             wxFONTENCODING_ISO8859_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
                 {
                     // it's a valid ISO8859 encoding

-                    value += wxFONTENCODING_ISO8859_1 - 1;
+                    value += wxFONTENCODING_ISO8859_1;

                     encoding = (wxFontEncoding)value;
                 }
             }
         }
                     encoding = (wxFontEncoding)value;
                 }
             }
         }

-        else if ( cs.Left(8) == wxT("WINDOWS-") )
+        else // check for Windows charsets

         {
         {

-            int value;
-            if ( wxSscanf(cs.c_str() + 8, wxT("%u"), &value) == 1 )
+            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 )

             {
             {

-                if ( value >= 1250 )
+                const wxChar *p = cs.c_str() + len;
+                if ( *p == wxT('-') )
+                    p++;
+
+                int value;
+                if ( wxSscanf(p, wxT("%u"), &value) == 1 )

                 {
                 {

-                    value -= 1250;
-                    if ( value < wxFONTENCODING_CP12_MAX -
-                                 wxFONTENCODING_CP1250 - 1 )
+                    if ( value >= 1250 )

                     {
                     {

-                        // a valid Windows code page
-                        value += wxFONTENCODING_CP1250;
-                        encoding = (wxFontEncoding)value;
+                        value -= 1250;
+                        if ( value < wxFONTENCODING_CP12_MAX -
+                                     wxFONTENCODING_CP1250 )
+                        {
+                            // a valid Windows code page
+                            value += wxFONTENCODING_CP1250;
+                            encoding = (wxFontEncoding)value;
+                        }

                     }
                 }
             }
                     }
                 }
             }


@@ -414,6 +558,7 @@ wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
         //else: unknown
     }
 
         //else: unknown
     }
 

+#if wxUSE_GUI

     // if still no luck, ask the user - unless disabled
     if ( (encoding == wxFONTENCODING_SYSTEM) && interactive )
     {
     // if still no luck, ask the user - unless disabled
     if ( (encoding == wxFONTENCODING_SYSTEM) && interactive )
     {


@@ -426,16 +571,13 @@ wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
 
         // the message
         wxString msg;
 
         // the message
         wxString msg;

-        msg.Printf(_("The charset '%s' is unknown. You may select another "
-                     "charset to replace it with or choose [Cancel] if it "
-                     "cannot be replaced"), charset.c_str());
+        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),
 
         // 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?") );
+                      wxT("inconsitency detected - forgot to update one of the arrays?") );

 
         wxString *encodingNamesTranslated = new wxString[count];
 
 
         wxString *encodingNamesTranslated = new wxString[count];
 


@@ -459,12 +601,28 @@ wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
 
         if ( n != -1 )
         {
 
         if ( n != -1 )
         {

-            // TODO save the result in the config!
-

             encoding = gs_encodings[n];
         }
             encoding = gs_encodings[n];
         }

-        //else: cancelled
+
+#if wxUSE_CONFIG
+        // save the result in the config now
+        if ( ChangePath(FONTMAPPER_CHARSET_PATH, &pathOld) )
+        {
+            wxConfigBase *config = GetConfig();
+
+            // 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());
+            }
+
+            RestorePath(pathOld);
+        }
+#endif // wxUSE_CONFIG

     }
     }

+#endif // wxUSE_GUI

 
     return encoding;
 }
 
     return encoding;
 }


@@ -475,6 +633,8 @@ 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)


@@ -482,6 +642,7 @@ bool wxFontMapper::TestAltEncoding(const wxString& configEntry,
     if ( wxGetNativeFontEncoding(encReplacement, info) &&
          wxTestFontEncoding(*info) )
     {
     if ( wxGetNativeFontEncoding(encReplacement, info) &&
          wxTestFontEncoding(*info) )
     {

+#if wxUSE_CONFIG

         // 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);
 


@@ -489,19 +650,52 @@ bool wxFontMapper::TestAltEncoding(const wxString& configEntry,
         {
             GetConfig()->Write(configEntry, info->ToString());
         }
         {
             GetConfig()->Write(configEntry, info->ToString());
         }

-
+#endif // wxUSE_CONFIG

         return TRUE;
     }
 
     return FALSE;
 }
 
         return TRUE;
     }
 
     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,
 bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
                                      wxNativeEncodingInfo *info,

+                                     const wxString& facename,

                                      bool interactive)
 {
                                      bool interactive)
 {

+#if wxUSE_GUI
+    // we need a flag to prevent infinite recursion which happens, for
+    // 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
+    // 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;
+
+    if ( interactive && s_inGetAltForEncoding )
+        return FALSE;
+
+    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;
+

     if ( encoding == wxFONTENCODING_DEFAULT )
     {
         encoding = wxFont::GetDefaultEncoding();
     if ( encoding == wxFONTENCODING_DEFAULT )
     {
         encoding = wxFont::GetDefaultEncoding();


@@ -518,8 +712,15 @@ bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
         // wxFatalError doesn't return
     }
 
         // wxFatalError doesn't return
     }
 

-    wxString configEntry = GetEncodingName(encoding);
+    wxString configEntry,
+             encName = GetEncodingName(encoding);
+    if ( !!facename )
+    {
+        configEntry = facename + _T("_");
+    }
+    configEntry += encName;

 
 

+#if wxUSE_CONFIG

     // do we have a font spec for this encoding?
     wxString pathOld;
     if ( ChangePath(FONTMAPPER_FONT_FROM_ENCODING_PATH, &pathOld) )
     // do we have a font spec for this encoding?
     wxString pathOld;
     if ( ChangePath(FONTMAPPER_FONT_FROM_ENCODING_PATH, &pathOld) )


@@ -530,26 +731,46 @@ bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
 
         RestorePath(pathOld);
 
 
         RestorePath(pathOld);
 

-        if ( !!fontinfo )
+        // 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 )

         {
         {

-            if ( info->FromString(fontinfo) )
+            interactive = FALSE;
+        }
+        else // use the info entered the last time
+        {
+            if ( !!fontinfo && !!facename )

             {
             {

-                if ( wxTestFontEncoding(*info) )
-                {
-                    // ok, got something
-                    return TRUE;
-                }
-                //else: no such fonts, look for something else
+                // we tried to find a match with facename - now try without it
+                fontinfo = config->Read(encName);

             }
             }

-            else
+
+            if ( !!fontinfo )

             {
             {

-                wxLogDebug(wxT("corrupted config data: string '%s' is not "
-                              "a valid font encoding info"), fontinfo.c_str());
+                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
+                {
+                    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

         }
     }
         }
     }

+#endif // wxUSE_CONFIG

 
     // ask the user
 
     // ask the user

+#if wxUSE_FONTDLG

     if ( interactive )
     {
         wxString title(m_titleDialog);
     if ( interactive )
     {
         wxString title(m_titleDialog);


@@ -558,11 +779,7 @@ bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
 
         // the message
         wxString msg;
 
         // the message
         wxString msg;

-        msg.Printf(_("The encoding '%s' is unknown.\n"
-                     "Would you like to select a font to be used for this "
-                     "encoding\n"
-                     "(otherwise the text in this encoding will not be "
-                     "shown correctly)?"),
+        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());
 
         wxWindow *parent = m_windowParent;
                      GetEncodingDescription(encoding).c_str());
 
         wxWindow *parent = m_windowParent;


@@ -582,7 +799,9 @@ bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
                 wxFont font = retData.GetChosenFont();
 
                 *info = retData.EncodingInfo();
                 wxFont font = retData.GetChosenFont();
 
                 *info = retData.EncodingInfo();

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

 
 

+#if wxUSE_CONFIG

                 // remember this in the config
                 if ( ChangePath(FONTMAPPER_FONT_FROM_ENCODING_PATH, &pathOld) )
                 {
                 // remember this in the config
                 if ( ChangePath(FONTMAPPER_FONT_FROM_ENCODING_PATH, &pathOld) )
                 {


@@ -590,22 +809,69 @@ bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
 
                     RestorePath(pathOld);
                 }
 
                     RestorePath(pathOld);
                 }

+#endif // wxUSE_CONFIG

 
                 return TRUE;
             }
             //else: the user canceled the font selection dialog
         }
 
                 return TRUE;
             }
             //else: the user canceled the font selection dialog
         }

-        //else: the user doesn't want to select a font
+        else
+        {
+            // the user doesn't want to select a font for this encoding,
+            // remember it to avoid asking the same question again later
+#if wxUSE_CONFIG
+            if ( ChangePath(FONTMAPPER_FONT_FROM_ENCODING_PATH, &pathOld) )
+            {
+                GetConfig()->Write(configEntry, FONTMAPPER_FONT_DONT_ASK);
+
+                RestorePath(pathOld);
+            }
+#endif // wxUSE_CONFIG
+        }

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

-
+#endif // wxUSE_FONTDLG

 
     // now try the default mappings:
 
     // now try the default mappings:

-    

     wxFontEncodingArray equiv = wxEncodingConverter::GetAllEquivalents(encoding);
     wxFontEncodingArray equiv = wxEncodingConverter::GetAllEquivalents(encoding);

-    for ( unsigned i = (equiv[0] == encoding) ? 1 : 0; i < equiv.GetCount(); i++ )
-        if ( TestAltEncoding(configEntry, equiv[i], info) )
-            return TRUE;
+    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;
+}
+
+bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
+                                     wxFontEncoding *alt_encoding,
+                                     const wxString& facename,
+                                     bool interactive)
+{
+    wxNativeEncodingInfo info;
+    bool r = GetAltForEncoding(encoding, &info, facename, interactive);
+    *alt_encoding = info.encoding;
+    return r;
+}
+
+bool wxFontMapper::IsEncodingAvailable(wxFontEncoding encoding,
+                                       const wxString& facename)
+{
+    wxNativeEncodingInfo info;
+
+    if (wxGetNativeFontEncoding(encoding, &info))
+    {
+        info.facename = facename;
+        return wxTestFontEncoding(info);
+    }

 
     return FALSE;
 }
 
     return FALSE;
 }

+
+#endif // wxUSE_GUI
+
+#endif // wxUSE_FONTMAP