Name: rlT66838 Date: 05/10/2000


java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)

Setting the background color of a JComboBox also changes the color of the drop
down button in JDK 1.3. This makes the JComboBox look really ugly. This problem
did not exist in JDK 1.2.2.

For some reason, using the "Windows" look and feel with background of the
JComboBox set to Color.white works fine (i.e, the drop down button is grey as
usual), but any other color will change the color of the button.
 

Example code (tested with 1.3 and 1.2.2):

/* Test background color on JComboBox */

import javax.swing.*;
import java.util.*;
import java.awt.*;
    
    public class Test extends JFrame
    {
        public Test()
        {
            initLookAndFeel();
            
            Vector data = new Vector();
            data.add("Row 1");
            data.add("Row 2");
        
            JComboBox comboWhite = new JComboBox(data);
            comboWhite.setBackground(Color.white);
            JComboBox comboOtherColor = new JComboBox(data);
            comboOtherColor.setBackground(Color.blue);
            
            JPanel panel = new JPanel();
            panel.add(comboWhite);
            panel.add(comboOtherColor);
            
            getContentPane().add(panel);
            
        }

      private static final String LOOKANDFEEL = "Windows";
 // private static final String LOOKANDFEEL = "Metal";


    private void initLookAndFeel()
    {
String lookAndFeel = null;

if (LOOKANDFEEL != null) {
     if (LOOKANDFEEL.equals("Metal")) {
lookAndFeel = UIManager.getCrossPlatformLookAndFeelClassName();
}
            else if (LOOKANDFEEL.equals("Windows")) {
     lookAndFeel= "com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
     }
        }

        try {
UIManager.setLookAndFeel(lookAndFeel);
} catch (Exception e) {
System.err.println("Error LookAndFeel!");
System.err.println("Using the default look and feel.");
e.printStackTrace();
}
}
        
        
    public static void main(String[] args)
    {
        
        Test test = new Test();
        test.setSize(new java.awt.Dimension(200,200));
        test.show();
      
    }
}
(Review ID: 104675)
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