Name: gm110360 Date: 04/23/2004


FULL PRODUCT VERSION :
1.4.2-b28


ADDITIONAL OS VERSION INFORMATION :
Windows 2000

A DESCRIPTION OF THE PROBLEM :
When creating JButtons with setAlignmentX(LEFT_ALIGNMENT) in a JPanel with a BoxLayout, the JButtons are layed out properly (vertical). As soon as another Component (I tried it with a JList) the JButtons aren't aligned left anymore. There is a little gap between the left edge of the JPanel/container and the JButton but there is NO space between the JList and the container.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Just compile and run the code.


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Components should be aligned equally on the left edge of the container without any space between.


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import javax.swing.JFrame;
import java.awt.HeadlessException;

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

public class Test extends JFrame
{
  JPanel leftNavPane = new JPanel();
  JPanel mainPane = new JPanel();

  public Test()
  {
    initGuiComponents();
    setSize(800,600);
    setVisible(true);
  }

  private void initGuiComponents()
  {
    //The layout of the application itself.
    this.getContentPane().setLayout(new BorderLayout());

    mainPane.add(new JButton("Hello"));

    leftNavPane.setLayout(new BoxLayout(leftNavPane, BoxLayout.PAGE_AXIS));
    JButton b1 = new JButton("Yes");
    b1.setAlignmentX(LEFT_ALIGNMENT);
    leftNavPane.add(b1);
    leftNavPane.add(Box.createRigidArea(new Dimension(0,5)));
    JButton b2 = new JButton("No");
    b2.setAlignmentX(LEFT_ALIGNMENT);
    leftNavPane.add(b2);
    leftNavPane.add(Box.createRigidArea(new Dimension(0,5)));
    java.util.Vector v = new java.util.Vector();
    v.add(new String("1"));
    v.add(new String("2"));
    v.add(new String("3"));
    v.add(new String("4"));
    v.add(new String("5"));
    JList list = new JList(v);
    list.setVisibleRowCount(3);
    leftNavPane.add(list);

    JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,
                               leftNavPane, mainPane);

    //this.getContentPane().add(splitPane);
    this.getContentPane().add(leftNavPane);
  }//end initGuiComponents
  //----------------------------------------------------------------------------

public static void main(String[] args){
  new Test();
  }
}
---------- END SOURCE ----------
(Incident Review ID: 250600)
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