Name: jk109818 Date: 09/09/2002


FULL PRODUCT VERSION :
java version "1.4.0_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0_01-b03)
Java HotSpot(TM) Client VM (build 1.4.0_01-b03, mixed mode)


FULL OPERATING SYSTEM VERSION :
SuSE Linux 8.0, Linux Kernel 2.4.18, glibc 2.2.5
 
ADDITIONAL OPERATING SYSTEMS :


A DESCRIPTION OF THE PROBLEM :
Currently, a top-level window doesn't directly honor the
minimum/maximum size set on e.g. a JFrame.
  
There is a (ugly) workaround for this problem:
http://www.javaworld.com/javaworld/javaqa/1999-10/03-qa-window.html
  
It would be trivial to add the top-level minimum/maximum size
to the XSetWMNormalHints() call that is done anyway.
 
On Windows, the WM_GETMINMAXINFO notification could be used to
enforce the minimum/maximum size.
 
I know that not all X window managers handle the hint, but almost
all sane do ;-)


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. create a JFrame with some stuff in it
2. System.out.println("frame min size should be= "+frame.getMinimumSize());
3. resize the window


EXPECTED VERSUS ACTUAL BEHAVIOR :
I would expect that the window doesn't shrink below its minimum size,
but it does :-(

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import javax.swing.JPanel;
import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.WindowConstants;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
 
/**
 * Small test to see the min max proplem
 */
public class MinMaxTest
{
    /**
     * Sets the UI up
     * @param args not used
     */
    public static void main(String[] args)
    {
        JPanel panel = new JPanel(new GridBagLayout());
        GridBagConstraints constrain= new GridBagConstraints();
        constrain.gridx = 0;
        constrain.gridy = 0;
        constrain.insets.left = 2;
        constrain.insets.right= 2;
        JLabel label = new JLabel("TestLabel");
        panel.add(label, constrain);
        constrain= new GridBagConstraints();
        constrain.gridx = 1;
        constrain.gridy = 0;
        constrain.fill = GridBagConstraints.HORIZONTAL;
        constrain.weightx= 1.;
        JButton button = new JButton("Testbutton");
        panel.add(button,constrain);
 
        JFrame frame= new JFrame("TestFrame");
        frame.getContentPane().add(panel);
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
        System.out.println("frame min size= "+frame.getMinimumSize());
    }
}

---------- END SOURCE ----------

CUSTOMER WORKAROUND :
http://www.javaworld.com/javaworld/javaqa/1999-10/03-qa-window.html
but ugly as hell ...
(Review ID: 164198)
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