iTextSharp.text.pdf.intern.PdfAnnotationsImp.ConvertAnnotation C# (CSharp) Method

        public static PdfAnnotation ConvertAnnotation(PdfWriter writer, Annotation annot, Rectangle defaultRect)
        {
            switch (annot.AnnotationType) {
                case Annotation.URL_NET:
                    return new PdfAnnotation(writer, annot.GetLlx(), annot.GetLly(), annot.GetUrx(), annot.GetUry(), new PdfAction((Uri) annot.Attributes[Annotation.URL]));
                case Annotation.URL_AS_STRING:
                    return new PdfAnnotation(writer, annot.GetLlx(), annot.GetLly(), annot.GetUrx(), annot.GetUry(), new PdfAction((String) annot.Attributes[Annotation.FILE]));
                case Annotation.FILE_DEST:
                    return new PdfAnnotation(writer, annot.GetLlx(), annot.GetLly(), annot.GetUrx(), annot.GetUry(), new PdfAction((String) annot.Attributes[Annotation.FILE], (String) annot.Attributes[Annotation.DESTINATION]));
                case Annotation.SCREEN:
                    bool[] sparams = (bool[])annot.Attributes[Annotation.PARAMETERS];
                    String fname = (String) annot.Attributes[Annotation.FILE];
                    String mimetype = (String) annot.Attributes[Annotation.MIMETYPE];
                    PdfFileSpecification fs;
                    if (sparams[0])
                        fs = PdfFileSpecification.FileEmbedded(writer, fname, fname, null);
                    else
                        fs = PdfFileSpecification.FileExtern(writer, fname);
                    PdfAnnotation ann = PdfAnnotation.CreateScreen(writer, new Rectangle(annot.GetLlx(), annot.GetLly(), annot.GetUrx(), annot.GetUry()),
                            fname, fs, mimetype, sparams[1]);
                    return ann;
                case Annotation.FILE_PAGE:
                    return new PdfAnnotation(writer, annot.GetLlx(), annot.GetLly(), annot.GetUrx(), annot.GetUry(), new PdfAction((String) annot.Attributes[Annotation.FILE], (int)annot.Attributes[Annotation.PAGE]));
                case Annotation.NAMED_DEST:
                    return new PdfAnnotation(writer, annot.GetLlx(), annot.GetLly(), annot.GetUrx(), annot.GetUry(), new PdfAction((int) annot.Attributes[Annotation.NAMED]));
                case Annotation.LAUNCH:
                    return new PdfAnnotation(writer, annot.GetLlx(), annot.GetLly(), annot.GetUrx(), annot.GetUry(), new PdfAction((String) annot.Attributes[Annotation.APPLICATION],(String) annot.Attributes[Annotation.PARAMETERS],(String) annot.Attributes[Annotation.OPERATION],(String) annot.Attributes[Annotation.DEFAULTDIR]));
                default:
                    return new PdfAnnotation(writer, defaultRect.Left, defaultRect.Bottom, defaultRect.Right, defaultRect.Top, new PdfString(annot.Title, PdfObject.TEXT_UNICODE), new PdfString(annot.Content, PdfObject.TEXT_UNICODE));
            }
        }