iTextSharp.text.pdf.PdfDocument.NewPage C# (CSharp) Метод

        public override bool NewPage()
        {
            FlushFloatingElements();

            lastElementType = -1;
            if (PageEmpty) {
                SetNewPageSizeAndMargins();
                return false;
            }
            if (!open || close) {
                throw new Exception(MessageLocalization.GetComposedMessage("the.document.is.not.open"));
            }
            IPdfPageEvent pageEvent = writer.PageEvent;
            if (pageEvent != null)
                pageEvent.OnEndPage(writer, this);

            //Added to inform any listeners that we are moving to a new page (added by David Freels)
            base.NewPage();

            // the following 2 lines were added by Pelikan Stephan
            indentation.imageIndentLeft = 0;
            indentation.imageIndentRight = 0;

            // we flush the arraylist with recently written lines
            FlushLines();
            // we prepare the elements of the page dictionary

            // [U1] page size and rotation
            int rotation = pageSize.Rotation;

            // [C10]
            if (writer.IsPdfIso()) {
                if (thisBoxSize.ContainsKey("art") && thisBoxSize.ContainsKey("trim"))
                    throw new PdfXConformanceException(MessageLocalization.GetComposedMessage("only.one.of.artbox.or.trimbox.can.exist.in.the.page"));
                if (!thisBoxSize.ContainsKey("art") && !thisBoxSize.ContainsKey("trim")) {
                    if (thisBoxSize.ContainsKey("crop"))
                        thisBoxSize["trim"] = thisBoxSize["crop"];
                    else
                        thisBoxSize["trim"] = new PdfRectangle(pageSize, pageSize.Rotation);
                }
            }

            // [M1]
            pageResources.AddDefaultColorDiff(writer.DefaultColorspace);
            if (writer.RgbTransparencyBlending) {
                PdfDictionary dcs = new PdfDictionary();
                dcs.Put(PdfName.CS, PdfName.DEVICERGB);
                pageResources.AddDefaultColorDiff(dcs);
            }
            PdfDictionary resources = pageResources.Resources;

            // we create the page dictionary

            PdfPage page = new PdfPage(new PdfRectangle(pageSize, rotation), thisBoxSize, resources, rotation);
            page.Put(PdfName.TABS, writer.Tabs);
            page.Merge(writer.PageDictEntries);
            writer.ResetPageDictEntries();

            // we complete the page dictionary

            // [U3] page actions: additional actions
            if (pageAA != null) {
                page.Put(PdfName.AA, writer.AddToBody(pageAA).IndirectReference);
                pageAA = null;
            }

            // [C5] and [C8] we add the annotations
            if (annotationsImp.HasUnusedAnnotations()) {
                PdfArray array = annotationsImp.RotateAnnotations(writer, pageSize);
                if (array.Size != 0)
                    page.Put(PdfName.ANNOTS, array);
            }

            // [F12] we add tag info
            if (writer.IsTagged())
                 page.Put(PdfName.STRUCTPARENTS, new PdfNumber(writer.CurrentPageNumber - 1));

             if (text.Size > textEmptySize || !UseSeparateCanvasesForTextAndGraphics)
                text.EndText();
            else
                text = null;
            IList<IList<IElement>> mcBlocks = new List<IList<IElement>>();
            mcBlocks.Add(null);
            mcBlocks.Add(null);
            mcBlocks.Add(null);
            mcBlocks.Add(null);
            mcBlocks[0] = writer.DirectContentUnder.SaveMCBlocks();
            if (graphics != null)
                mcBlocks[1] = graphics.SaveMCBlocks();
            if (UseSeparateCanvasesForTextAndGraphics && text != null)
                mcBlocks[2] = text.SaveMCBlocks();
            mcBlocks[3] = writer.DirectContent.SaveMCBlocks();
            writer.Add(page, new PdfContents(writer.DirectContentUnder, graphics, UseSeparateCanvasesForTextAndGraphics ? text : null, writer.DirectContent, pageSize));
            // we initialize the new page
            InitPage();
            writer.DirectContentUnder.RestoreMCBlocks(mcBlocks[0]);
            if (graphics != null)
                graphics.RestoreMCBlocks(mcBlocks[1]);
            if (UseSeparateCanvasesForTextAndGraphics && text != null)
                text.RestoreMCBlocks(mcBlocks[2]);
            writer.DirectContent.RestoreMCBlocks(mcBlocks[3]);
            return true;
        }