/*
* $Id$
*
* 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.LwgDocument;
import com.lowagie.text.LwgImage;
import com.lowagie.text.LwgPageSize;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfWriter;
/**
* Demonstrates transparency and images.
*/
public class SoftMask {
/**
* Demonstrates the Transparency functionality.
* @param args no arguments needed
*/
public static void main(String[] args) {
System.out.println("SoftMask");
// step 1: creation of a document-object
LwgDocument document = new LwgDocument(LwgPageSize.A4, 50, 50, 50, 50);
try {
// step 2: creation of a writer
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("softmask.pdf"));
// step 3: we open the document
document.open();
// step 4: content
PdfContentByte cb = writer.getDirectContent();
String text = "text ";
text += text;
text += text;
text += text;
text += text;
text += text;
text += text;
text += text;
text += text;
document.add(new Paragraph(text));
LwgImage img = LwgImage.getInstance("otsoe.jpg");
img.setAbsolutePosition(100, 550);
byte gradient[] = new byte[256];
for (int k = 0; k < 256; ++k)
gradient[k] = (byte)k;
LwgImage smask = LwgImage.getInstance(256, 1, 1, 8, gradient);
smask.makeMask();
img.setImageMask(smask);
cb.addImage(img);
cb.sanityCheck();
}
catch (Exception de) {
de.printStackTrace();
}
// step 5: we close the document
document.close();
}
}