Name: rmT116609 Date: 07/21/2003


FULL PRODUCT VERSION :
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_02-b06)
Java HotSpot(TM) Client VM (build 1.4.1_02-b06, mixed mode)

java version "1.4.2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-b28)
Java HotSpot(TM) Client VM (build 1.4.2-b28, mixed mode)


FULL OS VERSION :
Windows 2000 Version 5.0 (Build 2195: Service Pack 4)

A DESCRIPTION OF THE PROBLEM :
SpinnerDateModel.setCalendarField value is not used by the spinner arrows on a JSpinner for dates.
The JDK 1.4 new features tutorial for JSpinner states that the arrow bottons cause the getNextValue or getPreviousValue
methods to be called. getNextValue seems to work when called directly by the application but not by the arrow buttons on the JSpinner
Even getNextValue only seems to work after the JSpinner is displayed.

I tried any variation I could think of as a workaround without success including specifying max,min and step for the date.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run test case and use the arrow button on the date spinner to adjust the date.


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Using the arrow bottons on the date spinner should adjust the displayed date by the value specified
in the SetCalendarField method (Calendar.MONTH in this case)
ACTUAL -
Using the arrow buttons on the date spinner causes the displayed date's year to change (rather than the month).

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------

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

/**
 * An application that displays date/time
 * allowing the user to modify the date/time
 */
public class DateSpinner extends JPanel
{
  static JFrame frame;

  SpinnerDateModel dateModel;
  JSpinner dateSpinner;

  public SpinnerDateModel getDateModel()
  {
    return dateModel;
  }

  public JSpinner getDateSpinner()
  {
    return dateSpinner;
  }

  public DateSpinner(String titleDT, String dateFormat, Date initialDate,
                  Date minDate, Date maxDate)
  {

    // Create the Date & Time User Interface
    JLabel label = new JLabel(titleDT);

    Calendar initialCalendar = Calendar.getInstance();
    initialCalendar.set(Calendar.MILLISECOND, 0);
    initialDate = initialCalendar.getTime();
    
    dateModel = new SpinnerDateModel();
    dateModel.setValue(initialDate);

    dateModel.setStart(minDate);
    
    dateModel.setEnd(maxDate);
    
    dateSpinner = new JSpinner(dateModel);
    JSpinner.DateEditor editor = new JSpinner.DateEditor(dateSpinner, dateFormat);
    dateSpinner.setEditor(editor);

    // This code fails to work here
    dateModel.setCalendarField(Calendar.MONTH);
    dateSpinner.setValue(dateSpinner.getNextValue());

    add(label);
    add(dateSpinner);
  }
    
  public static void main(String s[])
  {
    DateSpinner panelStart;
    DateSpinner panelStop;
    
    try
    {
      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    }
    catch (Exception exc)
    {
      System.err.println("Error loading System Look & Feel: " + exc);
    }
    
    Calendar startCalendar = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
    startCalendar.set(Calendar.MILLISECOND, 0);
    Calendar stopCalendar = (Calendar) startCalendar.clone();
    stopCalendar.add(Calendar.HOUR, 4);
    Date startDate = startCalendar.getTime();
    Date stopDate = stopCalendar.getTime();
    
    panelStart = new DateSpinner("Start Date:", "yyyy MMM dd HH:mm:ss", startDate, null, null);
    panelStop = new DateSpinner("Stop Date:", "yyyy MMM dd HH:mm:ss", stopDate, new Date(0L), new Date(Long.MAX_VALUE));
    
    frame = new JFrame("Date & Time");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.getContentPane().add("North", panelStart);
    frame.getContentPane().add("South", panelStop);
    
    frame.pack();
    frame.setVisible(true);

    // This code works here
    panelStop.getDateModel().setCalendarField(Calendar.MONTH);
    panelStop.getDateSpinner().setValue(panelStop.getDateSpinner().getNextValue());

  }
}

---------- END SOURCE ----------
(Incident Review ID: 191831)
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