Re: Print BufferedImage the result is blank

From:

Knute Johnson <september@knutejohnson.com>

Newsgroups:

comp.lang.java.help

Date:

Tue, 15 Oct 2013 19:43:36 -0700

Message-ID:

<l3kugm$t88$1@dont-email.me>

On 10/15/2013 1:56 AM, p7371464@gmail.com wrote:

Hi, every one

following are parameter set of my environment

/////////////////

OS: Win 7 64 bit
Java: java version "1.6.0_29" 32 bit
Test Printer: CutePDF Writer 2.8 ???Microsoft XPS Document Writer

///////////

I try to print a image to printer, while the image file size is small the result is correct,
but while the file is large (jpeg format about 1.4 MB) the result is blank!!
I have assign -Xmx1024m to JVM.

following is the code to print, can any one give some suggestions
///////////////

public class TestPrinter2 {
    public static void main(String[] args) throws Exception {
        PrintService service = PrintServiceLookup.lookupDefaultPrintService();

        PrintRequestAttributeSet set = new HashPrintRequestAttributeSet();

        set.add(new Copies(1));

        PrinterJob pj = PrinterJob.getPrinterJob();

        if (pj.printDialog(set)) {

            service = pj.getPrintService();

            final BufferedImage img = ImageIO.read(new File("C:/TEMP/large.jpg"));

            DocFlavor inFlavor = DocFlavor.SERVICE_FORMATTED.PRINTABLE;

            Doc doc = new SimpleDoc(new Printable() {

                public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
                    if (pageIndex > 0)
                        return Printable.NO_SUCH_PAGE;
                    Graphics2D g2d = (Graphics2D) graphics;
                    g2d.drawImage(img, (int)pageFormat.getImageableX(), (int)pageFormat.getImageableY(), (int)pageFormat.getWidth(), (int)pageFormat.getHeight(),null);
                    return Printable.PAGE_EXISTS;
                }

            }, inFlavor, null);

            DocPrintJob job = service.createPrintJob();

            job.print(doc, set);
        }
    }
}

//////////////////

thanks for reply

Try this code and see if you are still having the problem.

import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.awt.print.*;
import java.io.*;
import javax.imageio.*;

public class test implements Printable {
     final BufferedImage image;

     public test() throws IOException {
         image = ImageIO.read(new File("kittens.jpg"));
     }

     public int print(Graphics g, PageFormat pf, int index) {
         if (index != 0)
             return Printable.NO_SUCH_PAGE;

         g.drawImage(image,(int)pf.getImageableX(),
          (int)pf.getImageableY(),null);
         return Printable.PAGE_EXISTS;
     }

     public static void main(String[] args) {
         try {
             test t = new test();
             PrinterJob pj = PrinterJob.getPrinterJob();
             PageFormat pf = pj.defaultPage();
             pj.setPrintable(t);
             if (pj.printDialog())
                 try {
                     pj.print();
                 } catch (PrinterException pe) {
                     pe.printStackTrace();
                 }
         } catch (IOException ioe) {
             ioe.printStackTrace();
         }
     }
}

--

--

Knute Johnson