Re: Print BufferedImage the result is blank
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