Name: yyT116575 Date: 09/26/2001


D:\inferno>java -version
java version "1.3.1_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_01)
Java HotSpot(TM) Client VM (build 1.3.1_01, mixed mode)

Calling printDialog() or pageDialog() on a java.awt.print.PrinterJob yields
dialogs which when dragged do not trigger redraws of obscured Swing components
of that application. This looks terrible. Additionally these dialogs should
behave like normal modal dialogs but do not, i.e., they fall behind the
application's window and don't block interactions with the application's frame.

This testcase demonstrates the problem. In this example the main window is
small, but keep in mind that in reality it would be a full application.
Run the testcase and click on either the Print or Page Setup buttons and note
the following bugs.
Note that when either dialog comes up the main window no longer redraws as it
should.
Further note that the dialogs' modalities are strange--neither modal nor
modaless. For example, the dialog is allowed to fall behind the main window and
you can click on the main window's Minimize, Maximize and Close buttons.
The correct behavior of Print and Page Setup dialogs (and of modal dialogs in
general) is demonstrated in any Windows application, e.g., Notepad.exe. Note
that in these applications modal dialogs are completely blocking but allow the
application to continue to redraw its UI.

/*
 * A testcase to demonstrate redraw problems caused by PrinterJob dialogs.
 */
package buggy;

import java.awt.*;
import java.awt.print.*;
import java.awt.event.*;
import javax.swing.*;

public class Testcase extends JPanel {
  static JFrame m_frame;

  public Testcase() {
    JButton printBtn = new JButton("Print...");
    JButton pageBtn = new JButton("Page Setup...");

    printBtn.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent event) {
        PrinterJob job = PrinterJob.getPrinterJob();
        job.printDialog();
      }
    });

    pageBtn.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent event) {
        PrinterJob job = PrinterJob.getPrinterJob();
        job.pageDialog(job.defaultPage());
      }
    });

    add(printBtn, BorderLayout.CENTER);
    add(pageBtn, BorderLayout.CENTER);
  }

  public static void main(String str[]) {
    Testcase panel = new Testcase();
    m_frame = new JFrame("Testcase");
    m_frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);}
      });
    m_frame.getContentPane().add("Center", panel);
    m_frame.setLocation(200, 200);
    panel.setPreferredSize(new Dimension(200, 200));
    m_frame.pack();
    m_frame.setVisible(true);
  }
}
(Review ID: 132605)
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