public ushort GetGlyphIndex(char ch)
{
if (ch < 32)
{
CMapEncodingRecord byteEncodingRecord = GetEncodingRecord(1, 0);
if (byteEncodingRecord != null)
{
return(byteEncodingRecord.GetGlyphIndex(ch));
}
}
CMapEncodingRecord unicodeEncodingRecord = GetEncodingRecord(3, 1);
if (unicodeEncodingRecord != null)
{
ushort result = unicodeEncodingRecord.GetGlyphIndex(ch);
if (result != 0)
{
return(result);
}
}
for (int i = 0; i < _records.Count; ++i)
{
CMapEncodingRecord encRecord = _records[i];
ushort result = encRecord.GetGlyphIndex(ch);
if (result != 0)
{
return(result);
}
}
if (ch < 0xf000)
{
// Some fonts contains glyphs in Private Use Area.
// Try to load from it.
if (0xf000 + ch <= ushort.MaxValue)
{
return(GetGlyphIndex((char)(0xf000 + ch)));
}
}
return(0);
}
public override void Read(Reader reader, int offset, int length)
{
if (length < 0 || offset <= 0 || offset >= reader.Length)
{
throw new PDFWrongFontFileException();
}
reader.Position = offset;
_version = (UInt16)reader.ReadUint16();
_numberSubtables = (UInt16)reader.ReadUint16();
for (int i = 0; i < _numberSubtables; ++i)
{
CMapEncodingRecord rec = new CMapEncodingRecord();
rec.Read(reader, offset);
_records.Add(rec);
}
}