X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/551fe3a6f024a542d26ce8da202d76d8c83f3a6f..f98de4487faac59af9d2d07e2ff23b8e852ce8eb:/src/common/fontmap.cpp

diff --git a/src/common/fontmap.cpp b/src/common/fontmap.cpp
index 8514d41c5e..13b7090082 100644
--- a/src/common/fontmap.cpp
+++ b/src/common/fontmap.cpp
@@ -42,6 +42,7 @@
 #endif
 
 #if wxUSE_GUI
+    #include "wx/fontutil.h"
     #include "wx/msgdlg.h"
     #include "wx/fontdlg.h"
     #include "wx/choicdlg.h"
@@ -466,11 +467,14 @@ wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
             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
-                    value += wxFONTENCODING_ISO8859_1 - 1;
+                    value += wxFONTENCODING_ISO8859_1;
                     encoding = (wxFontEncoding)value;
                 }
             }