unbbayes.controller
Class PrintMonitor

java.lang.Object
  unbbayes.controller.PrintMonitor

All Implemented Interfaces:

Pageable

public class PrintMonitor
extends Object
implements Pageable

Creating an instance of this class and printing it allows it to add a status dialog during printing. The print requests are simply delegated to the Pageable that actually contains the data to be printed, but by intercepting those calls, we can update the page number displayed in our dialog so that it indicates which page is currently being displayed.

Field Summary

protected JOptionPane	optionPane
protected Pageable	pageable
protected PrinterJob	printerJob
protected JDialog	statusDialog

Fields inherited from interface java.awt.print.Pageable

UNKNOWN_NUMBER_OF_PAGES

Constructor Summary

PrintMonitor(Pageable p)

Method Summary

int	getNumberOfPages()
PageFormat	getPageFormat(int index)
Printable	getPrintable(int index)
void	performPrint(boolean showDialog) Create a new thread and have it call the print() method.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

printerJob

protected PrinterJob printerJob

pageable

protected Pageable pageable

optionPane

protected JOptionPane optionPane

statusDialog

protected JDialog statusDialog

Constructor Detail

PrintMonitor

public PrintMonitor(Pageable p)

Method Detail

performPrint

public void performPrint(boolean showDialog)
                  throws PrinterException

Create a new thread and have it call the print() method. This ensures that the AWT event thread will be able to handle the Cancel button if it is pressed, and can cancel the print job.

Throws:

PrinterException

getNumberOfPages

public int getNumberOfPages()

Specified by:

getNumberOfPages in interface Pageable

getPrintable

public Printable getPrintable(int index)

Specified by:

getPrintable in interface Pageable

getPageFormat

public PageFormat getPageFormat(int index)

Specified by:

getPageFormat in interface Pageable