Proper way to print BufferedImage in Java

I would like to know if there is a printing method BufferedImagein Java. Basically, I created a photo processing program that works great, I can save images, etc. But my real goal is to send it to the printer software so that you can choose the number of pages you want to print and the type of page.

So, my shortened question: how to send a buffered image to a printer so that a printer selection popup window, etc., and then can be printed?

If anyone can show me an example of this, we will be very grateful.

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Here is one of one of my Java projects. This code scales and prints a single image on a printer page.

You call it like this:

    printButton.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent event) {
            //Start a Thread
            new Thread(new PrintActionListener(image)).start();         
        }
    });

Here's Runnable:

import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;

public class PrintActionListener implements Runnable {

    private BufferedImage       image;

    public PrintActionListener(BufferedImage image) {
        this.image = image;
    }

    @Override
    public void run() {
        PrinterJob printJob = PrinterJob.getPrinterJob();
        printJob.setPrintable(new ImagePrintable(printJob, image));

        if (printJob.printDialog()) {
            try {
                printJob.print();
            } catch (PrinterException prt) {
                prt.printStackTrace();
            }
        }
    }

    public class ImagePrintable implements Printable {

        private double          x, y, width;

        private int             orientation;

        private BufferedImage   image;

        public ImagePrintable(PrinterJob printJob, BufferedImage image) {
            PageFormat pageFormat = printJob.defaultPage();
            this.x = pageFormat.getImageableX();
            this.y = pageFormat.getImageableY();
            this.width = pageFormat.getImageableWidth();
            this.orientation = pageFormat.getOrientation();
            this.image = image;
        }

        @Override
        public int print(Graphics g, PageFormat pageFormat, int pageIndex)
                throws PrinterException {
            if (pageIndex == 0) {
                int pWidth = 0;
                int pHeight = 0;
                if (orientation == PageFormat.PORTRAIT) {
                    pWidth = (int) Math.min(width, (double) image.getWidth());
                    pHeight = pWidth * image.getHeight() / image.getWidth();
                } else {
                    pHeight = (int) Math.min(width, (double) image.getHeight());
                    pWidth = pHeight * image.getWidth() / image.getHeight();
                }
                g.drawImage(image, (int) x, (int) y, pWidth, pHeight, null);
                return PAGE_EXISTS;
            } else {
                return NO_SUCH_PAGE;
            }
        }

    }

}
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Source: https://habr.com/ru/post/1750386/


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