added Thai/CP874 support for MSW

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34670 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/fmapbase.cpp

@@ -73,6 +73,7 @@ static wxFontEncoding gs_encodings[] =
     wxFONTENCODING_ISO8859_15,
     wxFONTENCODING_KOI8,
     wxFONTENCODING_KOI8_U,
+    wxFONTENCODING_CP874,
     wxFONTENCODING_CP932,
     wxFONTENCODING_CP936,
     wxFONTENCODING_CP949,
@@ -117,6 +118,7 @@ static const wxChar* gs_encodingDescs[] =
     wxTRANSLATE( "Western European with Euro (ISO-8859-15)" ),
     wxTRANSLATE( "KOI8-R" ),
     wxTRANSLATE( "KOI8-U" ),
+    wxTRANSLATE( "Windows Thai (CP 874)" ),
     wxTRANSLATE( "Windows Japanese (CP 932)" ),
     wxTRANSLATE( "Windows Chinese Simplified (CP 936)" ),
     wxTRANSLATE( "Windows Korean (CP 949)" ),
@@ -161,6 +163,7 @@ static const wxChar* gs_encodingNames[] =
     wxT( "iso-8859-15" ),
     wxT( "koi8-r" ),
     wxT( "koi8-u" ),
+    wxT( "windows-874" ),
     wxT( "windows-932" ),
     wxT( "windows-936" ),
     wxT( "windows-949" ),
@@ -626,6 +629,10 @@ wxFontMapperBase::NonInteractiveCharsetToEncoding(const wxString& charset)
 
                     switch ( value )
                     {
+                        case 874:
+                            encoding = wxFONTENCODING_CP874;
+                            break;
+
                         case 932:
                             encoding = wxFONTENCODING_CP932;
                             break;

src/common/intl.cpp

@@ -2277,12 +2277,17 @@ wxFontEncoding wxLocale::GetSystemEncoding()
 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
     UINT codepage = ::GetACP();
 
-    // wxWidgets only knows about CP1250-1257, 932, 936, 949, 950
+    // wxWidgets only knows about CP1250-1257, 874, 932, 936, 949, 950
     if ( codepage >= 1250 && codepage <= 1257 )
     {
         return (wxFontEncoding)(wxFONTENCODING_CP1250 + codepage - 1250);
     }
 
+    if ( codepage == 874 )
+    {
+        return wxFONTENCODING_CP874;
+    }
+
     if ( codepage == 932 )
     {
         return wxFONTENCODING_CP932;

src/msw/fontutil.cpp

@@ -236,7 +236,7 @@ wxFontEncoding wxGetFontEncFromCharSet(int cs)
             break;
 
         case THAI_CHARSET:
-            fontEncoding = wxFONTENCODING_CP437;
+            fontEncoding = wxFONTENCODING_CP874;
             break;
 
         case SHIFTJIS_CHARSET: