Develop Reference

Adjusting size of image to be printed on thermal printer

I want to print an image on thermal printer, but when I use this code, the image gets smaller. How can I change the size of the image that I'm going to print?
public void printPhoto() throws Exception {
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
pras.add(new Copies(1));
pras.size();
PrintService pss[] = PrintServiceLookup.lookupPrintServices(DocFlavor.INPUT_STREAM.PNG, pras);
if (pss.length == 0)
throw new RuntimeException("No printer services available.");
PrintService ps = findPrintService("POS-58", pss);
System.out.println("Printing to " + ps);
DocPrintJob job = ps.createPrintJob();
FileInputStream fin = new FileInputStream("D:\\QRCODE\\test.png");
Doc doc = new SimpleDoc(fin, DocFlavor.INPUT_STREAM.PNG, null);
job.print(doc, pras);
fin.close();
}
Can anyone help me? This is for our school project. Thanks a lot.

I change my code to this
private static BufferedImage image;
public void PrintLogo(){
try {
image = ImageIO.read(new File("C:\\Users\\ADMIN\\Desktop\\logothermal.png"));
System.out.println(image.getWidth() + "x" + image.getHeight());
PrinterJob pj = PrinterJob.getPrinterJob();
PageFormat pf = pj.defaultPage();
Paper paper = pf.getPaper();
// 86X54mm
double width = fromCMToPPI(7.6);
double height = fromCMToPPI(3.4);
paper.setSize(width, height);
paper.setImageableArea(
fromCMToPPI(0.1),
fromCMToPPI(0.1),
width - fromCMToPPI(0.1),
height - fromCMToPPI(0.1));
pf.setOrientation(PageFormat.PORTRAIT);
pf.setPaper(paper);
PageFormat validatePage = pj.validatePage(pf);
System.out.println("Valid- " + dump(validatePage));
pj.setPrintable(new MyPrintable(), validatePage);
try {
pj.print();
} catch (PrinterException ex) {
ex.printStackTrace();
}
} catch (IOException exp) {
exp.printStackTrace();
}
}
public static double fromPPItoCM(double dpi) {
return dpi / 72 / 0.393700787;
}
public static double fromCMToPPI(double cm) {
return toPPI(cm * 0.393700787);
}
public static double toPPI(double inch) {
return inch * 72d;
}
public static String dump(Paper paper) {
StringBuilder sb = new StringBuilder(64);
sb.append(paper.getWidth()).append("x").append(paper.getHeight())
.append("/").append(paper.getImageableX()).append("x").
append(paper.getImageableY()).append(" - ").append(paper
.getImageableWidth()).append("x").append(paper.getImageableHeight());
return sb.toString();
}
public static String dump(PageFormat pf) {
Paper paper = pf.getPaper();
return dump(paper);
}
public static class MyPrintable implements Printable {
#Override
public int print(Graphics graphics, PageFormat pageFormat,
int pageIndex) throws PrinterException {
System.out.println(pageIndex);
int result = NO_SUCH_PAGE;
if (pageIndex < 1) {
Graphics2D g2d = (Graphics2D) graphics;
System.out.println("[Print] " + dump(pageFormat));
double width = pageFormat.getImageableWidth();
double height = pageFormat.getImageableHeight()/2;
System.out.println("Print Size = " + fromPPItoCM(width) + "x" +
fromPPItoCM(height));
g2d.translate((int) pageFormat.getImageableX(),
(int) pageFormat.getImageableY());
Image scaled = null;
if (width > height) {
scaled = image.getScaledInstance((int)Math.round(width), -1,
Image.SCALE_SMOOTH);
} else {
scaled = image.getScaledInstance(-1, (int)Math.round(height),
Image.SCALE_SMOOTH);
}
g2d.drawImage(scaled, 0, 0, null);
result = PAGE_EXISTS;
}
return result;
}
}

Printing a Multi-page JPanel

I'm nervous about asking this because I'm scared I'll get told off. I am trying to print a JPanel that is about 4 pages long. It could be more, the data is from a JDBC MySql query, that could end up being many more that 4. The JPanel I am trying to print is full of other JPanels (with competitors race details on them) that I have added via a ListArray..
Anyway, I have scoured all day through stackoverflow and have found may examples of code that I have tried to implement. The printable class only prints the first page, so I have tried to implement the pageable class, but I just can't seem to get it right. I have tried to implement the Book class but don't know how to add my JPanel to the book. I have looked here, here and many more (I'm only allowed to post 2 links).
Here is my current code (that I got off one of the answers that #madprogrammer gave) -
int printButton = JOptionPane.showOptionDialog(null, scrollPane, "Race Winners", JOptionPane.YES_NO_OPTION,
JOptionPane.PLAIN_MESSAGE, // no Icon
null, //do not use a custom Icon
options, //the titles of buttons
options[0]); //default button title
if (printButton == 0) {
try {
printComponent(pane, true);
//printComponentToFile(pane, false);
} catch (PrinterException exp) {
exp.printStackTrace();
}
public static void printComponent(JComponent comp, boolean fill) throws PrinterException {
PrinterJob pjob = PrinterJob.getPrinterJob();
//pjob.setPageable(comp);
PageFormat pf = pjob.defaultPage();
pf.setOrientation(PageFormat.PORTRAIT);
PageFormat postformat = pjob.pageDialog(pf);
if (pf != postformat) {
//Set print component
//pjob.setPageable(comp);
pjob.setPrintable(new ComponentPrinter(comp, fill), postformat);
if (pjob.printDialog()) {
pjob.print();
}
}
}
public static void printComponentToFile(Component comp, boolean fill) throws PrinterException {
Paper paper = new Paper();
paper.setSize(8.3 * 72, 11.7 * 72);
paper.setImageableArea(18, 18, 559, 783);
PageFormat pf = new PageFormat();
pf.setPaper(paper);
pf.setOrientation(PageFormat.PORTRAIT);
BufferedImage img = new BufferedImage(
(int) Math.round(pf.getWidth()), (int) Math.round(pf.getHeight()),
BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = img.createGraphics();
g2d.setColor(Color.WHITE);
g2d.fill(new Rectangle(0, 0, img.getWidth(), img.getHeight()));
ComponentPrinter cp = new ComponentPrinter(comp, fill);
try {
cp.print(g2d, pf, 0);
} finally {
g2d.dispose();
}
try {
ImageIO.write(img, "png", new File("Page-" + (fill ? "Filled" : "") + ".png"));
} catch (IOException ex) {
ex.printStackTrace();
}
}
public static class ComponentPrinter implements Printable, Pageable {
private Component comp;
private boolean fill;
int numPages;
PageFormat format;
public ComponentPrinter(Component comp, boolean fill) {
this.comp = comp;
this.fill = fill;
}
#Override
public int print(Graphics g, PageFormat format, int page_index) throws PrinterException {
numPages = (int) Math.ceil(comp.getHeight() / format.getImageableY());
System.out.print(numPages);
if (page_index > 0) {
return Printable.NO_SUCH_PAGE;
}
Graphics2D g2 = (Graphics2D) g;
g2.translate(format.getImageableX(), format.getImageableY());
//g2.translate(format.getImageableX(), format.getImageableY()- page_index*comp.getPreferredSize().height);
double width = (int) Math.floor(format.getImageableWidth());
double height = (int) Math.floor(format.getImageableHeight());
if (!fill) {
width = Math.min(width, comp.getPreferredSize().width);
height = Math.min(height, comp.getPreferredSize().height);
}
comp.setBounds(0, 0, (int) Math.floor(width), (int) Math.floor(height));
if (comp.getParent() == null) {
comp.addNotify();
}
comp.validate();
comp.doLayout();
comp.printAll(g2);
if (comp.getParent() != null) {
comp.removeNotify();
}
return Printable.PAGE_EXISTS;
}
#Override
public int getNumberOfPages() {
// TODO Auto-generated method stub
return numPages;
}
#Override
public PageFormat getPageFormat(int arg0) throws IndexOutOfBoundsException {
return format;
}
#Override
public Printable getPrintable(int arg0) throws IndexOutOfBoundsException {
// TODO Auto-generated method stub
return this;
}
}
This all works, but only prints the first page. I would REALLY appreciate a nudge in the right direction with this as I'm stumped. TIA :-)

This is how you print a Component (JPanel) on multiple pages:
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.print.*;
import javax.swing.RepaintManager;
public class PrintMultiPageUtil implements Printable, Pageable {
private Component componentToBePrinted;
private PageFormat format;
private int numPages;
public PrintMultiPageUtil(Component componentToBePrinted) {
this.componentToBePrinted = componentToBePrinted;
// get total space from component
Dimension totalSpace = this.componentToBePrinted.getPreferredSize();
// calculate for DIN A4
format = PrinterJob.getPrinterJob().defaultPage();
numPages = (int) Math.ceil(totalSpace .height/format.getImageableHeight());
}
public void print() {
PrinterJob printJob = PrinterJob.getPrinterJob();
// show page-dialog with default DIN A4
format = printJob.pageDialog(printJob.defaultPage());
printJob.setPrintable(this);
printJob.setPageable(this);
if (printJob.printDialog())
try {
printJob.print();
} catch(PrinterException pe) {
System.out.println("Error printing: " + pe);
}
}
public int print(Graphics g, PageFormat pageFormat, int pageIndex) {
if ((pageIndex < 0) | (pageIndex >= numPages)) {
return(NO_SUCH_PAGE);
} else {
Graphics2D g2d = (Graphics2D)g;
g2d.translate(pageFormat.getImageableX(), pageFormat.getImageableY() - pageIndex * pageFormat.getImageableHeight());
disableDoubleBuffering(componentToBePrinted);
componentToBePrinted.paint(g2d);
enableDoubleBuffering(componentToBePrinted);
return(PAGE_EXISTS);
}
}
public static void disableDoubleBuffering(Component c) {
RepaintManager currentManager = RepaintManager.currentManager(c);
currentManager.setDoubleBufferingEnabled(false);
}
public static void enableDoubleBuffering(Component c) {
RepaintManager currentManager = RepaintManager.currentManager(c);
currentManager.setDoubleBufferingEnabled(true);
}
#Override
public int getNumberOfPages() {
// TODO Auto-generated method stub
return numPages;
}
#Override
public PageFormat getPageFormat(int arg0) throws IndexOutOfBoundsException {
return format;
}
#Override
public Printable getPrintable(int arg0) throws IndexOutOfBoundsException {
// TODO Auto-generated method stub
return this;
}
}
numPages
I changed the expression for numPages to:
(int) Math.ceil(page.height/format.getImageableHeight())
This divides the total height (height of the jpanel) through the height of one page, thus calculating the number of all pages.
g2d.translate
I did the following change: In this line:
g2d.translate(pageFormat.getImageableX(), pageFormat.getImageableY() - pageIndex * pageFormat.getImageableHeight());
Changed componentToBePrinted.getPreferredSize().height to pageFormat.getImageableHeight(). A positive value for the first or the second parameter of g2d.translate moves the graphic to the right or down respectively.
.getImageableX() and .getImageableY() help position the graphic so that it doesn't overlap with the padding.
For pageIndex greater than 0, - pageIndex * pageFormat.getImageableHeight() moves the image pageIndex-times the page-height to the top. So the area, that the pageIndex refers to is printed.
original broken source:: https://community.oracle.com
Here is my original answer.

Save JFrame in pdf format in netbeans

I am using the following codes to print and save the data in pdf format but it doesn't worked. So, what is the code to print the information of jframe in netbeans in pdf format.
PrinterJob job = PrinterJob.getPrinterJob();
job.setJobName("jPanel2");
job.setPrintable (new Printable()
{
public int print(Graphics pg, PageFormat pf, int pageNum)
{
if (pageNum > 0)
{
return Printable.NO_SUCH_PAGE;
}
Graphics2D g2 = (Graphics2D) pg;
g2.translate(pf.getImageableX(), pf.getImageableY());
jPanel2.paint(g2);
return Printable.PAGE_EXISTS;
}
});
boolean ok = job.printDialog();
if (ok)
{
try
{
job.print();
}
catch (PrinterException ex)
{
}
}

Java print on Windows XP generating big spool file

I'm working on custom printing module for our application. Printging with code below on windows 7 is working well. When I've got 8pages tiff file, it generates 12MB spool. But when I execute this code on windows XP it generates spool with size something about 300MB and printing takes long time.
Please can somebody tell me how can I speed it up, or is there some workaround for this?
thanks
public class TIFFPrintPage implements Printable {
private static final SimpleDateFormat sdf = new SimpleDateFormat("dd.MM.yyyy HH:mm:ss.SSS");
private RenderedImage page;
public TIFFPrintPage(RenderedImage page) {
this.page = page;
}
#Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
if (page != null) {
// convert to a BufferedImage since I cannot write a RenderedImage for some reason
BufferedImage good = new BufferedImage(page.getWidth(), page.getHeight(), BufferedImage.TYPE_INT_ARGB);
Graphics2D g2dtemp = (Graphics2D) smaller.getGraphics();
g2dtemp.drawRenderedImage(page, new AffineTransform());
Graphics2D g2d = (Graphics2D) graphics;
g2d.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
g2d.drawImage(smaller, 0, 0, smaller.getWidth(), smaller.getHeight(), null);
g2d.dispose();
good.flush();
return Printable.PAGE_EXISTS;
} else {
return Printable.NO_SUCH_PAGE;
}
}
public static void main(String[] args) throws IOException, PrinterException {
PrintService service = PrintServiceLookup.lookupDefaultPrintService();
PrinterJob printerJob = PrinterJob.getPrinterJob();
printerJob.setPrintService(service);
PageFormat pf = PrinterJob.getPrinterJob().defaultPage();
Paper paper = new Paper();
paper.setSize(595.275591, 841.889764); // width, height A4 format
paper.setImageableArea(0, 0, paper.getWidth(), paper.getHeight());
pf.setPaper(paper);
SeekableStream s = new FileSeekableStream("c:/test3.tiff");
TIFFDecodeParam param = null;
ImageDecoder dec = ImageCodec.createImageDecoder("tiff", s, param);
Book book = new Book();
for (int i = 0; i < dec.getNumPages(); i++) {
book.append(new TIFFPrintPage(dec.decodeAsRenderedImage(i)), pf);
}
printerJob.setPageable(book);
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
pras.add(Sides.DUPLEX);
printerJob.print(pras);
}
}

How would I suppress the print dialog in this example?

private void printCard() {
PrinterJob printjob = PrinterJob.getPrinterJob();
printjob.setJobName("Label");
Printable printable = new Printable() {
public int print(Graphics pg, PageFormat pf, int pageNum) {
if (pageNum > 0) {
return Printable.NO_SUCH_PAGE;
}
Dimension size = jLayeredPane2.getSize();
BufferedImage bufferedImage = new BufferedImage(size.width, size.height, BufferedImage.TYPE_INT_RGB);
jLayeredPane2.print(bufferedImage.getGraphics());
Graphics2D g2 = (Graphics2D) pg;
g2.translate(pf.getImageableX(), pf.getImageableY());
g2.drawImage(bufferedImage, 0, 0, (int) pf.getWidth(), (int) pf.getHeight(), null);
return Printable.PAGE_EXISTS;
}
};
Paper paper = new Paper();
paper.setImageableArea(0, 0, 153, 243);
paper.setSize(243, 154);
PageFormat format = new PageFormat();
format.setPaper(paper);
format.setOrientation(PageFormat.LANDSCAPE);
printjob.setPrintable(printable, format);
if (printjob.printDialog() == false)
return;
try {
printjob.print();
} catch (PrinterException ex) {
System.out.println("NO PAGE FOUND." + ex);
}
}

From what I see in your code, you call if (printjob.printDialog() == false). This will always try to show the native printer properties dialog. The boolean return value is based on whether the user clicks OK or cancels out of the dialog. If you want to suppress the dialog, remove that if block, as the printing work that you want to perform is done via the printjob.print() call.