/*
* $Id$
*
* This code is part of the 'iText Tutorial'.
* You can find the complete tutorial at the following address:
* http://itextdocs.lowagie.com/tutorial/
*
* This code is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* itext-questions@lists.sourceforge.net
*/
package com.lowagie.examples.directcontent.colors;
import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.Font;
import com.lowagie.text.FontFactory;
import com.lowagie.text.Image;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.GrayColor;
import com.lowagie.text.pdf.PatternColor;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfPatternPainter;
import com.lowagie.text.pdf.PdfWriter;
/**
* Painting patterns
*/
public class Patterns {
/**
* Painting patterns.
* @param args no arguments needed
*/
public static void main(String[] args) {
System.out.println("Painting 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 FileOutputStream("patterns.pdf"));
// step 3: we open the document
document.open();
// step 4: we grab the ContentByte and do some stuff with it
PdfContentByte cb = writer.getDirectContent();
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.getScaledWidth(), img.getScaledHeight(), img.getScaledWidth(), img.getScaledHeight());
// 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();
p1.sanityCheck();
// A pattern with an image and position
p2.addImage(img, img.getScaledWidth(), 0f, 0f, img.getScaledHeight(), 0f, 0f);
p2.setPatternMatrix(1f, 0f, 0f, 1f, 60f, 60f);
p2.sanityCheck();
// 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();
cb.sanityCheck();
// 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.getScaledWidth(), 0f, 0f, img.getScaledHeight(), 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();
cb.sanityCheck();
}
catch(Exception e) {
e.printStackTrace();
}
// finally, we close the document
document.close();
}
}