private static void AddSection(PdfDocument pdfDoc, Paragraph paragraph, int pageNumber, int sectionNumber)
{
Document doc = new Document(pdfDoc);
ParagraphRenderer renderer = (ParagraphRenderer)paragraph.CreateRendererSubTree();
renderer.SetParent(new DocumentRenderer(doc));
float pageHeight = pdfDoc.GetDefaultPageSize().GetHeight();
float pageWidth = pdfDoc.GetDefaultPageSize().GetWidth();
Rectangle textSectionRectangle = new Rectangle(
doc.GetLeftMargin(),
doc.GetBottomMargin() + ((pageHeight - doc.GetTopMargin() - doc.GetBottomMargin()) / 3) * sectionNumber,
pageWidth - doc.GetLeftMargin() - doc.GetRightMargin(),
(pageHeight - doc.GetTopMargin() - doc.GetBottomMargin()) / 3);
// Simulate the positioning of the renderer to find out how much space the text section will occupy.
LayoutResult layoutResult = renderer
.Layout(new LayoutContext(new LayoutArea(pageNumber, textSectionRectangle)));
/* Fill the current page section with the content.
* If the content isn't fully placed in the current page section,
* it will be split and drawn in the next page section.
*/
while (layoutResult.GetStatus() != LayoutResult.FULL)
{
if (pdfDoc.GetNumberOfPages() < pageNumber)
{
pdfDoc.AddNewPage();
}
pageNumber++;
layoutResult.GetSplitRenderer().Draw(new DrawContext(pdfDoc,
new PdfCanvas(pdfDoc.GetPage(pageNumber - 1)), false));
renderer = (ParagraphRenderer)layoutResult.GetOverflowRenderer();
layoutResult = renderer
.Layout(new LayoutContext(new LayoutArea(pageNumber, textSectionRectangle)));
}
if (pdfDoc.GetNumberOfPages() < pageNumber)
{
pdfDoc.AddNewPage();
}
renderer.Draw(new DrawContext(pdfDoc, new PdfCanvas(pdfDoc.GetPage(pageNumber)), false));
}
