printmonitor.java

外国人写的Java打印程序

package printtable;

import java.awt.print.*;
import javax.swing.*;
/**
 * Title:        PrintTable
 * Description:  A java jTable Print Programme.
 * Enable set the wighth and highth.
 * Copyright:    Copyright (c) 2002
 * Company:      TopShine
 * @author ghostliang
 * @version 1.0
 */

public class PrintMonitor implements Pageable{

  private PrinterJob printerJob;
  private Pageable pageable;
  private JOptionPane optionPane;
  private JDialog statusDialog;

  public PrintMonitor(Pageable newPageable,String jobName) {
    pageable = newPageable;
    printerJob = PrinterJob.getPrinterJob();
    printerJob.setJobName(jobName);
    String[] options = {"Cancel"};
    optionPane = new JOptionPane("",
      JOptionPane.INFORMATION_MESSAGE,
      JOptionPane.CANCEL_OPTION,
      null,options);
    statusDialog = optionPane.createDialog(null,"Printing Status");
  }

  public void performPrint(boolean showDialog)
    throws PrinterException
  {
    printerJob.setPageable(this);
    if(showDialog)
    {
      boolean isOK = printerJob.printDialog();
      if(!isOK)
        return;
    }
    optionPane.setMessage("Initiating Printing ...");
    Thread newThread = new Thread(new Runnable()
    {
      public void run()
      {
        statusDialog.setVisible(true);
        if(optionPane.getValue() != JOptionPane.UNINITIALIZED_VALUE)
          printerJob.cancel();
      }
    });
    newThread.start();
    printerJob.print();
    statusDialog.setVisible(false);
  }

  public int getNumberOfPages()
  {
    return pageable.getNumberOfPages();
  }

  public Printable getPrintable(int index)
  {
    optionPane.setMessage("Printing Page:" + (index + 1) + "/" + pageable.getNumberOfPages());
    return pageable.getPrintable(index);
  }

  public PageFormat getPageFormat(int index)
  {
    return pageable.getPageFormat(index);
  }
}