chap1203.cs

iTextSharp

using System;
using System.IO;

using iTextSharp.text;
using iTextSharp.text.pdf;

namespace iTextSharp.tutorial.Chap12
{
	class MyTableEventColspan:  IPdfPTableEvent 
	{
		public void TableLayout(PdfPTable table, float[][] width, float[] heights, int headerRows, int rowStart, PdfContentByte[] canvases) 
		{
			float[] widths = width[0];
				PdfContentByte cb = canvases[PdfPTable.TEXTCANVAS];
			cb.SaveState();
			cb.SetLineWidth(2);
			cb.SetRGBColorStroke(255, 0, 0);
			
			cb.Rectangle(widths[0], heights[heights.Length - 1], widths[widths.Length - 1] - widths[0], heights[0] - heights[heights.Length - 1]);
			cb.Stroke();
			if (headerRows > 0) 
			{
				float headerHeight = heights[0];
				for (int k = 0; k < headerRows; ++k)
					headerHeight += heights[k];
				cb.SetRGBColorStroke(0, 0, 255);
				cb.Rectangle(widths[0], heights[headerRows], widths[widths.Length - 1] - widths[0], heights[0] - heights[headerRows]);
				cb.Stroke();
			}
			cb.RestoreState();
			cb = canvases[PdfPTable.BASECANVAS];
			cb.SaveState();
			cb.SetLineWidth(.5f);
			Random r = new Random();
			for (int line = 0; line < heights.Length - 1; ++line) 
			{
				widths = width[line];
				for (int col = 0; col < widths.Length - 1; ++col) 
				{
					if (line == 0 && col == 0)
						cb.SetAction(new PdfAction("http://www.Geocities.Com/itextpdf"),
							widths[col], heights[line + 1], widths[col + 1], heights[line]);
					cb.SetRGBColorStrokeF((float)r.NextDouble(), (float)r.NextDouble(), (float)r.NextDouble());
					cb.MoveTo(widths[col], heights[line]);
					cb.LineTo(widths[col + 1], heights[line]);
					cb.Stroke();
					cb.SetRGBColorStrokeF((float)r.NextDouble(), (float)r.NextDouble(), (float)r.NextDouble());
					cb.MoveTo(widths[col], heights[line]);
					cb.LineTo(widths[col], heights[line + 1]);
					cb.Stroke();
				}
			}
			cb.RestoreState();
		}
	}

	public class Chap1203
	{
		public Chap1203()
		{
        Console.WriteLine("Chapter 12 example 3: Table events with rowspan");
        
        // step 1: creation of a document-object
        Document document = new Document(PageSize.A4, 50, 50, 50, 50);
        try {
            // step 2: we create a writer that listens to the document
            PdfWriter writer = PdfWriter.GetInstance(document, new FileStream("Chap1203.pdf", FileMode.Create));
            // step 3: we open the document
            document.Open();
            // step 4: we add some content
            BaseFont bf = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.WINANSI, BaseFont.NOT_EMBEDDED);
            // table 1
            PdfPTable table = new PdfPTable(4);
			
            table.DefaultCell.Border=(Rectangle.NO_BORDER);
            for (int k = 0; k < 24; ++k) {
                if (k != 0)
                    table.AddCell("" + k);
                else {
                    table.DefaultCell.Colspan=(3);
                    table.DefaultCell.HorizontalAlignment=(Element.ALIGN_CENTER);
                    table.AddCell("This is a very big URL");
                    table.DefaultCell.Colspan=(1);
                    table.DefaultCell.HorizontalAlignment=(Element.ALIGN_LEFT);
                    k += 2;
                }
            }
            MyTableEventColspan evnt = new MyTableEventColspan();
            table.TableEvent=(evnt);
            table.TotalWidth=(300);
            // write table 1 at some position
            table.WriteSelectedRows(0, -1, 100, 600, writer.DirectContent);
            // add table 1 (default position)
            document.Add(table);
            document.NewPage();
            // table 2
            table = new PdfPTable(4);
            float fontSize = 12;
            table.DefaultCell.PaddingTop=(bf.GetFontDescriptor(BaseFont.ASCENT, fontSize) - fontSize + 2);
            table.DefaultCell.Border=(Rectangle.NO_BORDER);
            for (int k = 0; k < 500 * 4; ++k) {
                if (k == 0) {
                    table.DefaultCell.Colspan=(4);
                    table.DefaultCell.HorizontalAlignment=(Element.ALIGN_CENTER);
                    table.AddCell(new Phrase("This is an URL", new Font(bf, fontSize * 2)));
                    table.DefaultCell.Colspan=(1);
                    table.DefaultCell.HorizontalAlignment=(Element.ALIGN_LEFT);
                    k += 3;
                }
                else
                    table.AddCell(new Phrase("" + k, new Font(bf, fontSize)));
            }
            table.TableEvent=(evnt);
            table.HeaderRows=(3);
            document.Add(table);
        }
        catch (Exception de) {
			Console.Error.WriteLine(de.Message);
        }
        // step 5: close the document
        document.Close();
		}
	}
}