// 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
// if didn't find it there, try to recognize it ourselves
if ( encoding == wxFONTENCODING_SYSTEM )
{
// trim any spaces
cs.Trim(TRUE);
cs.Trim(FALSE);
// discard the optional quotes
if ( !cs.empty() )
{
if ( cs[0u] == _T('"') && cs.Last() == _T('"') )
{
cs = wxString(cs.c_str(), cs.length() - 1);
}
}
cs.MakeUpper();
if ( cs.empty() || cs == _T("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;
}
}
switch ( value )
{
case 932:
encoding = wxFONTENCODING_CP932;
break;
case 936:
encoding = wxFONTENCODING_CP936;
break;
case 949:
encoding = wxFONTENCODING_CP949;
break;
case 950:
encoding = wxFONTENCODING_CP950;
break;
}
}
}
}
//else: unknown
}
#if wxUSE_GUI
// if still no luck, ask the user - unless disabled
if ( (encoding == wxFONTENCODING_SYSTEM) && interactive )
{
// prepare the dialog data
// the dialog title
wxString title(m_titleDialog);
if ( !title )
title << wxTheApp->GetAppName() << _(": unknown charset");
// the message
wxString msg;
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?") );
wxString *encodingNamesTranslated = new wxString[count];
// 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)?"),
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());
}
// 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,
wxICON_QUESTION | wxYES_NO,
m_windowParent) == answer )
{
wxFontData data;
data.SetEncoding(encoding);
data.EncodingInfo() = *info;
wxFontDialog dialog(m_windowParent, data);
if ( dialog.ShowModal() == wxID_OK )
{
wxFontData retData = dialog.GetFontData();
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) )
