Name: boT120536 Date: 07/15/2001


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


If setIconImage(image) is called AFTER the frame is diplayed ( using show() or
setVisible(true) ), the image is not displayed in the ICON box and the default
image is used instead.

Here is a demo:

/*********************************************************/
/*********************************************************/

import java.awt.*;
import javax.swing.*;
import gov.nasa.ksc.clcs.utilx.SystemEnvironment;

/**
 * This class will provides evidence that JFrame.setIconImage() will not
 * work if used after the frame has been shown (using JFrame.show() or
 * JFrame.setVisible().
 *
 * To duplicate the error just run the demo WITHOUT any command line options.
 * To duplicate a workaround, run the demo WITH a command line option.
 *
 * PS:
 * Bug was tested with 60x60 PNG, JPEG and GIF files. Solaris 2.6
 */

public class TestIcons extends JFrame
{
  public TestIcons(boolean showBefore)
  {
    super("TestIcon");
    super.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );

    //Image icon = Toolkit.getDefaultToolkit().getImage( "./image.png" );
    Image icon = new ImageIcon( "./image.png" ).getImage();

    if( showBefore )
    {
      System.out.println("JFrame.setIconImage() ..... FAILED");
      super.show();
      super.setIconImage( icon );
    }
    else
    {
      System.out.println("JFrame.setIconImage() ..... WORKS");
      super.setIconImage( icon );
      super.show();
    }
  }
  
  
  public static void main(String[] args)
  {
    //If no commandline option is used. The error will be duplicated.
    //Otherwise, the working option is invoked.
    boolean bln = ( args.length == 0 );

    TestIcons f = new TestIcons(bln);

    // Iconifying frame to show the ICON. This is done since the
    // ICON will not be display in NORMAL state.
    f.setState( JFrame.ICONIFIED );
  }
  
} // TestIcons
/*********************************************************/
(Review ID: 126410)
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