public void CellLayout(PdfPCell cell, Rectangle position, PdfContentByte[] canvases) { PdfContentByte cb = canvases[PdfPTable.BACKGROUNDCANVAS]; PdfPatternPainter patternPainter = cb.CreatePattern(image.ScaledWidth, image.ScaledHeight); image.SetAbsolutePosition(0, 0); patternPainter.AddImage(image); cb.SaveState(); cb.SetPatternFill(patternPainter); cb.Rectangle(position.Left, position.Bottom, position.Width, position.Height); cb.Fill(); cb.RestoreState(); }
// --------------------------------------------------------------------------- /** * Creates a PDF document. */ public byte[] CreatePdf() { using (MemoryStream ms = new MemoryStream()) { // step 1 using (Document document = new Document()) { // step 2 PdfWriter writer = PdfWriter.GetInstance(document, ms); // step 3 document.Open(); // step 4 PdfContentByte canvas = writer.DirectContent; PdfPatternPainter square = canvas.CreatePattern(15, 15); square.SetColorFill(new BaseColor(0xFF, 0xFF, 0x00)); square.SetColorStroke(new BaseColor(0xFF, 0x00, 0x00)); square.Rectangle(5, 5, 5, 5); square.FillStroke(); PdfPatternPainter ellipse = canvas.CreatePattern(15, 10, 20, 25); ellipse.SetColorFill(new BaseColor(0xFF, 0xFF, 0x00)); ellipse.SetColorStroke(new BaseColor(0xFF, 0x00, 0x00)); ellipse.Ellipse(2f, 2f, 13f, 8f); ellipse.FillStroke(); PdfPatternPainter circle = canvas.CreatePattern(15, 15, 10, 20, BaseColor.BLUE); circle.Circle(7.5f, 7.5f, 2.5f); circle.Fill(); PdfPatternPainter line = canvas.CreatePattern(5, 10, null); line.SetLineWidth(1); line.MoveTo(3, -1); line.LineTo(3, 11); line.Stroke(); Image img = Image.GetInstance(RESOURCE); img.ScaleAbsolute(20, 20); img.SetAbsolutePosition(0, 0); PdfPatternPainter img_pattern = canvas.CreatePattern(20, 20, 20, 20); img_pattern.AddImage(img); img_pattern.SetPatternMatrix(-0.5f, 0f, 0f, 0.5f, 0f, 0f); ColorRectangle(canvas, new PatternColor(square), 36, 696, 126, 126); ColorRectangle(canvas, new PatternColor(ellipse), 180, 696, 126, 126); ColorRectangle(canvas, new PatternColor(circle), 324, 696, 126, 126); ColorRectangle(canvas, new PatternColor(line), 36, 552, 126, 126); ColorRectangle(canvas, new PatternColor(img_pattern), 36, 408, 126, 126); canvas.SetPatternFill(line, BaseColor.RED); canvas.Ellipse(180, 552, 306, 678); canvas.FillStroke(); canvas.SetPatternFill(circle, BaseColor.GREEN); canvas.Ellipse(324, 552, 450, 678); canvas.FillStroke(); canvas.SetPatternFill(img_pattern); canvas.Ellipse(180, 408, 450, 534); canvas.FillStroke(); } return(ms.ToArray()); } }
public Chap1015() { Console.WriteLine("Chapter 10 Example 15: Tiled Patterns"); // step 1: creation of a document-object Document document = new Document(); try { // step 2: // we create a writer that listens to the document // and directs a PDF-stream to a file PdfWriter writer = PdfWriter.GetInstance(document, new FileStream("Chap1015.pdf", FileMode.Create)); // step 3: we open the document document.Open(); // step 4: we grab the ContentByte and do some stuff with it PdfContentByte cb = writer.DirectContent; BaseFont bf = BaseFont.CreateFont("Times-Roman", "winansi", false); // step 5: we create some PdfPatternPainter instances for drawing path, text, or placing image // Image instance to be placed in PdfPatternPainter canvas. Any nice one? Image img = Image.GetInstance("pngnow.png"); PdfPatternPainter p = cb.CreatePattern(60f, 60f, 60f, 60f); PdfPatternPainter p1 = cb.CreatePattern(60f, 60f, 60f, 60f); PdfPatternPainter p2 = cb.CreatePattern(img.ScaledWidth, img.ScaledHeight, img.ScaledWidth, img.ScaledHeight); // step 6: put your drawing instruction in the painter canvas // A star pattern taken from Adobe PDF Reference Book p.207 String star = "0.3 g\n15.000 27.000 m\n" + "7.947 5.292 l\n26.413 18.708 l\n" + "3.587 18.708 l\n22.053 5.292 l\nf\n" + "45.000 57.000 m\n37.947 35.292 l\n" + "56.413 48.708 l\n33.587 48.708 l\n" + "52.053 35.292 l\nf\n" + "0.7 g\n15.000 57.000 m\n" + "7.947 35.292 l\n26.413 48.708 l\n" + "3.587 48.708 l\n22.053 35.292 l\nf\n" + "45.000 27.000 m\n37.947 5.292 l\n" + "56.413 18.708 l\n33.587 18.708 l\n" + "52.053 5.292 l\nf"; p.SetLiteral(star); // A Pattern with some text drawing p1.SetGrayFill(0.3f); p1.SetFontAndSize(bf, 12); p1.BeginText(); p1.SetTextMatrix(1f, 0f, 0f, 1f, 0f, 0f); p1.ShowText("A B C D"); p1.EndText(); p1.MoveTo(0f, 0f); p1.LineTo(60f, 60f); p1.Stroke(); // A pattern with an image and position p2.AddImage(img, img.ScaledWidth, 0f, 0f, img.ScaledHeight, 0f, 0f); p2.SetPatternMatrix(1f, 0f, 0f, 1f, 60f, 60f); // See if we can apply the pattern color to chunk, phrase or paragraph PatternColor pat = new PatternColor(p); PatternColor pat1 = new PatternColor(p1); PatternColor pat2 = new PatternColor(p2); String text = "Text with pattern"; document.Add(new Paragraph(text, FontFactory.GetFont(FontFactory.HELVETICA, 60, Font.BOLD, new GrayColor(0.3f)))); document.Add(new Paragraph(text, FontFactory.GetFont(FontFactory.HELVETICA, 60, Font.BOLD, pat))); // draw a rectangle filled with star pattern cb.SetPatternFill(p); cb.SetGrayStroke(0.0f); cb.Rectangle(20, 20, 284, 120); cb.FillStroke(); // draw some characters filled with star. // Note: A gray, rgb, cmyk or spot color should be applied first // otherwise, you will not be able to see the character glyph // since the glyph path is filled by pattern cb.BeginText(); cb.SetFontAndSize(bf, 1); cb.SetTextMatrix(270f, 0f, 0f, 270f, 20f, 100f); cb.SetGrayFill(0.9f); cb.ShowText("ABC"); cb.SetPatternFill(p); cb.MoveTextWithLeading(0.0f, 0.0f); cb.ShowText("ABC"); cb.EndText(); cb.SetPatternFill(p); // draw a circle. Similar to rectangle cb.SetGrayStroke(0.0f); cb.Circle(150f, 400f, 150f); cb.FillStroke(); // New Page to draw text in the pattern painter's canvas document.NewPage(); document.Add(new Paragraph(text, FontFactory.GetFont(FontFactory.HELVETICA, 60, Font.BOLD, new GrayColor(0.3f)))); document.Add(new Paragraph(text, FontFactory.GetFont(FontFactory.HELVETICA, 60, Font.BOLD, pat1))); // draw a rectangle cb.SetPatternFill(p1); cb.SetGrayStroke(0.0f); cb.Rectangle(0, 0, 284, 120); cb.FillStroke(); // draw some characters cb.BeginText(); cb.SetFontAndSize(bf, 1); cb.SetTextMatrix(270f, 0f, 0f, 270f, 20f, 100f); cb.SetGrayFill(0.9f); cb.ShowText("ABC"); cb.SetPatternFill(p1); cb.MoveTextWithLeading(0.0f, 0.0f); cb.ShowText("ABC"); cb.EndText(); // draw a circle cb.SetPatternFill(p1); cb.SetGrayStroke(0.0f); cb.Circle(150f, 400f, 150f); cb.FillStroke(); // New page to place image in the pattern painter's canvas document.NewPage(); document.Add(new Paragraph(text, FontFactory.GetFont(FontFactory.HELVETICA, 60, Font.BOLD, new GrayColor(0.3f)))); document.Add(new Paragraph(text, FontFactory.GetFont(FontFactory.HELVETICA, 60, Font.BOLD, pat2))); // The original Image for comparison reason. // Note: The width and height is the same as bbox in pattern cb.AddImage(img, img.ScaledWidth, 0f, 0f, img.ScaledHeight, 350f, 400f); // draw a rectangle cb.SetPatternFill(p2); cb.SetGrayStroke(0.0f); cb.Rectangle(60, 60, 300, 120); cb.FillStroke(); // draw some characters. // Note: if the image fills up the pattern, there's no need to draw text twice // since colors in image will be clipped to character glyph path cb.BeginText(); cb.SetFontAndSize(bf, 1); cb.SetTextMatrix(270f, 0f, 0f, 270f, 60f, 120f); cb.SetPatternFill(p2); cb.ShowText("ABC"); cb.EndText(); // draw a circle cb.SetPatternFill(p2); cb.SetGrayStroke(0.0f); cb.Circle(150f, 400f, 150f); cb.FillStroke(); } catch (Exception e) { Console.Error.WriteLine(e.Message); Console.Error.WriteLine(e.StackTrace); } // finally, we close the document document.Close(); }