/*
* $Id$
*
* 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;
import java.io.FileOutputStream;
import java.io.IOException;
import com.lowagie.text.Chunk;
import com.lowagie.text.LwgDocument;
import com.lowagie.text.DocumentException;
import com.lowagie.text.LwgImage;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfWriter;
/**
* Explains the concept concerning PdfContentByte layers.
*/
public class Layers {
/**
* Draws different things into different layers.
* @param args no arguments needed
*/
public static void main(String[] args) {
System.out.println("Layers");
// step 1: creation of a document-object
LwgDocument document = new LwgDocument();
try {
// step 2: creation of the writer
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("layers.pdf"));
// step 3: we open the document
document.open();
// step 4:
// high level
Paragraph p = new Paragraph();
for (int i = 0; i < 100; i++) p.add(new Chunk("Blah blah blah blah blah. "));
document.add(p);
LwgImage img = LwgImage.getInstance("hitchcock.png");
img.setAbsolutePosition(100, 500);
document.add(img);
// low level
PdfContentByte cb = writer.getDirectContent();
PdfContentByte cbu = writer.getDirectContentUnder();
cb.setRGBColorFill(0xFF, 0xFF, 0xFF);
cb.circle(250.0f, 500.0f, 50.0f);
cb.fill();
cb.sanityCheck();
cbu.setRGBColorFill(0xFF, 0x00, 0x00);
cbu.circle(250.0f, 500.0f, 100.0f);
cbu.fill();
cbu.sanityCheck();
}
catch(DocumentException de) {
System.err.println(de.getMessage());
}
catch(IOException ioe) {
System.err.println(ioe.getMessage());
}
// step 5: we close the document
document.close();
}
}