How to print a large JPanel on multiple pages

Question

I want to print a very large panel, and this panel contains some components, such as jtable, jlabel and other jpanel. Now I want to print it on different pages. But I do not know how to do this. I applied Printable in my panel class. But if I print it, I get only one page.

Answer 1

Give it a try

package com.mymoney.util; import java.awt.Component; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.print.PageFormat; import java.awt.print.Pageable; import java.awt.print.Printable; import java.awt.print.PrinterException; import java.awt.print.PrinterJob; import javax.swing.RepaintManager; public class PrintUtil implements Printable, Pageable { private Component componentToBePrinted; private PageFormat format; private int numPages; public PrintUtil(Component componentToBePrinted) { this.componentToBePrinted = componentToBePrinted; Dimension page = this.componentToBePrinted.getPreferredSize(); numPages = (int) Math.ceil(page.height/format.getImageableY()); } public void print() { PrinterJob printJob = PrinterJob.getPrinterJob(); printJob.setPrintable(this); printJob.setPageable(this); format = printJob.defaultPage(); 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*componentToBePrinted.getPreferredSize().height); 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; } } 

Link → https://community.oracle.com/thread/1263759?start=0&tstart=0

Answer 2

My editing of a question from Harry was not accepted, so I post my changes as a new answer.

The following code works for me (I tested it):

 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 (jpanel height) by the height of one page, thus calculating the number of all pages.

g2d.translate

I made the following change: On this line:

 g2d.translate(pageFormat.getImageableX(), pageFormat.getImageableY() - pageIndex * pageFormat.getImageableHeight()); 

Changed componentToBePrinted.getPreferredSize().height pageFormat.getImageableHeight() to pageFormat.getImageableHeight() . A positive value for the first or second parameter g2d.translate moves the graph to the right or down, respectively.

.getImageableX() and .getImageableY() help arrange the graphics so that it does not overlap with the filling.

For pageIndex greater than 0 , - pageIndex * pageFormat.getImageableHeight() moves the pageIndex image - increases the height of the page to the top. Thus, the area referenced by pageIndex is printed.

original broken source:

https://community.oracle.com