iTextSharp.text.pdf.PdfSpotColor.GetSpotObject C# (CSharp) Метод

        protected internal virtual PdfObject GetSpotObject(PdfWriter writer)
        {
            PdfArray array = new PdfArray(PdfName.SEPARATION);
            array.Add(name);
            PdfFunction func = null;
            if (altcs is ExtendedColor) {
                int type = ((ExtendedColor)altcs).Type;
                switch (type) {
                    case ExtendedColor.TYPE_GRAY:
                        array.Add(PdfName.DEVICEGRAY);
                        func = PdfFunction.Type2(writer, new float[]{0, 1}, null, new float[]{0}, new float[]{((GrayColor)altcs).Gray}, 1);
                        break;
                    case ExtendedColor.TYPE_CMYK:
                        array.Add(PdfName.DEVICECMYK);
                        CMYKColor cmyk = (CMYKColor)altcs;
                        func = PdfFunction.Type2(writer, new float[]{0, 1}, null, new float[]{0, 0, 0, 0},
                            new float[]{cmyk.Cyan, cmyk.Magenta, cmyk.Yellow, cmyk.Black}, 1);
                        break;
                    default:
                        throw new Exception(MessageLocalization.GetComposedMessage("only.rgb.gray.and.cmyk.are.supported.as.alternative.color.spaces"));
                }
            }
            else {
                array.Add(PdfName.DEVICERGB);
                func = PdfFunction.Type2(writer, new float[]{0, 1}, null, new float[]{1, 1, 1},
                    new float[]{(float)altcs.R / 255, (float)altcs.G / 255, (float)altcs.B / 255}, 1);
            }
            array.Add(func.Reference);
            return array;
        }

 /** Gets the <CODE>SpotColor</CODE> object.
  * @return the <CODE>PdfSpotColor</CODE>
  */
 virtual public PdfObject GetSpotColor(PdfWriter writer)
 {
     return(spotcolor.GetSpotObject(writer));
 }