public void Invoke(PdfContentStreamProcessor processor, PdfLiteral oper, List<PdfObject> operands) {
     processor.PaintPath(PathPaintingRenderInfo.NO_OP, -1, false);
 }
 public virtual void Invoke(PdfContentStreamProcessor processor, PdfLiteral oper, List<PdfObject> operands) {
     processor.PaintPath(operation, rule, close);
     // TODO: add logic for clipping path (before add it to the graphics state)
 }