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();
}
// ===========================================================================
public void Write(Stream stream)
{
// step 1
using (Document document = new Document()) {
// step 2
PdfWriter writer = PdfWriter.GetInstance(document, stream);
// step 3
document.Open();
// step 4
PdfContentByte canvas = writer.DirectContent;
String text = "AWAY again";
BaseFont bf = BaseFont.CreateFont();
canvas.BeginText();
// line 1
canvas.SetFontAndSize(bf, 16);
canvas.MoveText(36, 806);
canvas.MoveTextWithLeading(0, -24);
canvas.ShowText(text);
// line 2
canvas.SetWordSpacing(20);
canvas.NewlineShowText(text);
// line 3
canvas.SetCharacterSpacing(10);
canvas.NewlineShowText(text);
canvas.SetWordSpacing(0);
canvas.SetCharacterSpacing(0);
// line 4
canvas.SetHorizontalScaling(50);
canvas.NewlineShowText(text);
canvas.SetHorizontalScaling(100);
// line 5
canvas.NewlineShowText(text);
canvas.SetTextRise(15);
canvas.SetFontAndSize(bf, 12);
canvas.SetColorFill(BaseColor.RED);
canvas.ShowText("2");
canvas.SetColorFill(GrayColor.GRAYBLACK);
// line 6
canvas.SetLeading(56);
canvas.NewlineShowText("Changing the leading: " + text);
canvas.SetLeading(24);
canvas.NewlineText();
// line 7
PdfTextArray array = new PdfTextArray("A");
array.Add(120);
array.Add("W");
array.Add(120);
array.Add("A");
array.Add(95);
array.Add("Y again");
canvas.ShowText(array);
canvas.EndText();
canvas.SetColorFill(BaseColor.BLUE);
canvas.BeginText();
canvas.SetTextMatrix(360, 770);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_FILL);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.BeginText();
canvas.SetTextMatrix(360, 730);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_STROKE);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.BeginText();
canvas.SetTextMatrix(360, 690);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.BeginText();
canvas.SetTextMatrix(360, 650);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_INVISIBLE);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
PdfTemplate template = canvas.CreateTemplate(200, 36);
template.SetLineWidth(2);
for (int i = 0; i < 6; i++)
{
template.MoveTo(0, i * 6);
template.LineTo(200, i * 6);
}
template.Stroke();
canvas.SaveState();
canvas.BeginText();
canvas.SetTextMatrix(360, 610);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_FILL_CLIP);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.AddTemplate(template, 360, 610);
canvas.RestoreState();
canvas.SaveState();
canvas.BeginText();
canvas.SetTextMatrix(360, 570);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_STROKE_CLIP);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.AddTemplate(template, 360, 570);
canvas.RestoreState();
canvas.SaveState();
canvas.BeginText();
canvas.SetTextMatrix(360, 530);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE_CLIP);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.AddTemplate(template, 360, 530);
canvas.RestoreState();
canvas.SaveState();
canvas.BeginText();
canvas.SetTextMatrix(360, 490);
canvas.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_CLIP);
canvas.SetFontAndSize(bf, 24);
canvas.ShowText(text);
canvas.EndText();
canvas.AddTemplate(template, 360, 490);
canvas.RestoreState();
}
}
