public IFont Generate(PdfDictionary dictionary, IRandomAccessRead reader, bool isLenientParsing)
{
var baseFont = dictionary.GetName(CosName.BASE_FONT);
var cMap = ReadEncoding(dictionary, out var isCMapPredefined);
ICidFont cidFont;
if (TryGetFirstDescendant(dictionary, out var descendantObject))
{
var parsed = DirectObjectFinder.Find <PdfDictionary>(descendantObject, pdfObjectParser, reader, isLenientParsing);
if (parsed is PdfDictionary descendantFontDictionary)
{
cidFont = ParseDescendant(descendantFontDictionary, reader, isLenientParsing);
}
else
{
throw new InvalidFontFormatException("Expected to find a Descendant Font dictionary, instead it was: " + parsed);
}
}
else
{
throw new InvalidFontFormatException("No descendant font dictionary was declared for this Type 0 font. This dictionary should contain the CIDFont for the Type 0 font. " + dictionary);
}
var ucs2CMap = GetUcs2CMap(dictionary, isCMapPredefined, false);
CMap toUnicodeCMap = null;
if (dictionary.ContainsKey(CosName.TO_UNICODE))
{
var toUnicodeValue = dictionary[CosName.TO_UNICODE];
var toUnicode = pdfObjectParser.Parse(((CosObject)toUnicodeValue).ToIndirectReference(), reader, isLenientParsing) as PdfRawStream;
var decodedUnicodeCMap = toUnicode?.Decode(filterProvider);
if (decodedUnicodeCMap != null)
{
toUnicodeCMap = cMapCache.Parse(new ByteArrayInputBytes(decodedUnicodeCMap), isLenientParsing);
}
}
var font = new Type0Font(baseFont, cidFont, cMap, toUnicodeCMap);
return(font);
}