PDF duplex drucken

[Rol]

Hallo,

ich habe mit iText ein PDF erzeugt und möchte diese jetzt ausdrucken.

zum ausdrucken verwende ich folgenden code der aus einem Beitrag hier im Forum stammt:

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.print.Book;
import java.awt.print.PageFormat;
import java.awt.print.Paper;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.io.FileInputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;

import javax.swing.JOptionPane;

import com.sun.pdfview.PDFFile;
import com.sun.pdfview.PDFPage;
import com.sun.pdfview.PDFRenderer;

public class PDFPrinter {
    public PDFPrinter() {
        try {
            FileInputStream fis = new FileInputStream("test.pdf");
            FileChannel fc = fis.getChannel();
            ByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
            PDFFile pdfFile = new PDFFile(bb); // Create PDF Print Page
            PDFPrintPage pages = new PDFPrintPage(pdfFile);
            // Create Print Job
            PrinterJob pjob = PrinterJob.getPrinterJob();
            PageFormat pf = PrinterJob.getPrinterJob().defaultPage();
            Paper a5paper = new Paper();
            double a5PaperHeight = 8.26d;
            double a5PaperWidth = 5.83d;
            a5paper.setSize(a5PaperWidth * 72.0, a5PaperHeight * 72.0);
            /*
             * set the margins respectively the imageable area
             */
            double leftMargin = 0.1;
            double rightMargin = 0.1;
            double topMargin = 0.1;
            double bottomMargin = 0.1;
            a5paper.setImageableArea(leftMargin * 72.0, topMargin * 72.0, (a5PaperWidth - leftMargin - rightMargin) * 72.0, (a5PaperHeight - topMargin - bottomMargin) * 72.0);
            pf.setOrientation(PageFormat.LANDSCAPE);
            pf.setPaper(a5paper);
            Book book = new Book();
            book.append(pages, pf, pdfFile.getNumPages());
            pjob.setPageable(book);
            // Send print job to default printer
            if (pjob.printDialog()) {
                pjob.print();
            }
             pjob.print();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (PrinterException e) {
            JOptionPane.showMessageDialog(null, "Printing Error: "
                    + e.getMessage(), "Print Aborted",
                    JOptionPane.ERROR_MESSAGE);
            e.printStackTrace();
        }
    }

    class PDFPrintPage implements Printable {

        private PDFFile file;

        PDFPrintPage(PDFFile file) {
            this.file = file;
        }

        public int print(Graphics g, PageFormat format, int index)
                throws PrinterException {
            int pagenum = index + 1;

            // don't bother if the page number is out of range.
            if ((pagenum >= 1) && (pagenum <= file.getNumPages())) {
                // fit the PDFPage into the printing area
                Graphics2D g2 = (Graphics2D) g;
                PDFPage page = file.getPage(pagenum);
                double pwidth = format.getImageableWidth();
                double pheight = format.getImageableHeight();

                double aspect = page.getAspectRatio();
                double paperaspect = pwidth / pheight;

                Rectangle imgbounds;

                if (aspect > paperaspect) {
                    // paper is too tall / pdfpage is too wide
                    int height = (int) (pwidth / aspect);
                    imgbounds = new Rectangle(
                            (int) format.getImageableX(),
                            (int) (format.getImageableY() + ((pheight - height) / 2)),
                            (int) pwidth, height);
                } else {
                    // paper is too wide / pdfpage is too tall
                    int width = (int) (pheight * aspect);
                    imgbounds = new Rectangle(
                            (int) (format.getImageableX() + ((pwidth - width) / 2)),
                            (int) format.getImageableY(), width, (int) pheight);
                }
                // render the page
                PDFRenderer pgs = new PDFRenderer(page, g2, imgbounds, null,
                        null);
                try {
                    page.waitForFinish();
                    pgs.run();
                } catch (InterruptedException ie) {
                }

                return PAGE_EXISTS;
            } else {
                return NO_SUCH_PAGE;
            }
        }
    }
}

Kann mir jemand sagen wie ich es hinbekomme, dass mein Drucker ein zweiseitiges A5 Dokument im duplex Modus druckt? Der Drucker unterstützt A5 duplex.

Oder würder ihr das drucken ganz anders machen? Die Quellen die ich im www zum Thema drucken unter Java gefunden habe sind überwiegend viele Jahre alt und vermutlich nicht mehr up to date.

MfG
Rol

 

[HoaX]

java print duplex - Google-Suche ?!

 

[Rol]

Genialer Tip, danke!

 

[Rol]

Ich habe jetzt folgenden Ansatz versucht:

    private void printPdf() {
        InputStream in = null;
        try {
            in = new FileInputStream("test.pdf");
        } catch (FileNotFoundException ex) {
            Logger.getLogger(MainGui.class.getName()).log(Level.SEVERE, null, ex);
        }
        DocFlavor flavor = DocFlavor.INPUT_STREAM.PDF;
        PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
        aset.add(MediaSizeName.ISO_A5);
        aset.add(Sides.DUPLEX);
        PrintService service = PrintServiceLookup.lookupDefaultPrintService();
        Doc doc = new SimpleDoc(in, flavor, null);
        DocPrintJob job = service.createPrintJob();
        System.out.println("Printing...");
        try {
            job.print(doc, aset);
        } catch (PrintException ex) {
            Logger.getLogger(MainGui.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

Dabei bekomme ich eine:
sun.print.PrintJobFlavorException: invalid flavor

Nun habe ich mir mit:

        PrintService s = PrintServiceLookup.lookupDefaultPrintService();
        for (int i = 0; i < s.getSupportedDocFlavors().length; i++){
            System.out.println(s.getSupportedDocFlavors()[i]);
        }

die vom Drucker (ein Kyocera FS-C5250DN, unterstützt nach Herstellerangaben PDF Direktdruck) unterstüzten Flavors anzeigen lassen:
image/gif; class="[B"
image/gif; class="java.io.InputStream"
image/gif; class="java.net.URL"
image/jpeg; class="[B"
image/jpeg; class="java.io.InputStream"
image/jpeg; class="java.net.URL"
image/png; class="[B"
image/png; class="java.io.InputStream"
image/png; class="java.net.URL"
application/x-java-jvm-local-objectref; class="java.awt.print.Pageable"
application/x-java-jvm-local-objectref; class="java.awt.print.Printable"
application/octet-stream; class="[B"
application/octet-stream; class="java.net.URL"
application/octet-stream; class="java.io.InputStream"

Das erhöht meine Ratlosigkeit leider nochmals. Was sagt mir die Liste der suported flavers? Was müsste ich in o.g. code als flaver angeben um ein pdf zu drucken?

Bin dankbar für jeden konstruktiven Tip.