iTextSharp.text.pdf.PdfStructTreeController.AddRole C# (CSharp) Метод

        internal void AddRole(PdfName structType)
        {
            if (structType == null) {
            return;
            }
            foreach (PdfName name in standardTypes) {
            if (name.Equals(structType))
                return;
            }
            PdfObject obj;
            if (sourceRoleMap == null) {
            obj = GetDirectObject(structTreeRoot.Get(PdfName.ROLEMAP));
            if (obj == null || !obj.IsDictionary()) {
                return;
            }
            sourceRoleMap = (PdfDictionary)obj;
            }
            obj = sourceRoleMap.Get(structType);
            if (obj == null || !obj.IsName()) {
            return;
            }
            PdfObject currentRole;
            if (roleMap == null) {
            roleMap = new PdfDictionary();
            structureTreeRoot.Put(PdfName.ROLEMAP, roleMap);
            roleMap.Put(structType,obj);
            } else if ((currentRole = roleMap.Get(structType)) != null) {
            if (!currentRole.Equals(obj)) {
                throw new BadPdfFormatException(MessageLocalization.GetComposedMessage("conflict.input.rolemap",obj));
            }
            } else {
            roleMap.Put(structType,obj);
            }
        }