Name: boT120536 Date: 02/08/2001


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

I’ve written the following simple bean to demo the problem:

package dk.hiq.umlwise.application;

import java.awt.*;
import java.io.*;

public class UMLDiagramBean
   extends java.awt.Component
{
   public UMLDiagramBean()
   {
   };
   public Dimension getPreferredSize()
   {
      return new Dimension(400, 300);
   };
  public void paint(Graphics g)
  {
     Dimension dim = getSize();
     if (g instanceof Graphics2D) {
        Graphics2D g2 =(Graphics2D)g;
        g2.setStroke(new BasicStroke(2));
     };
     g.setColor(Color.yellow);
     g.fillOval(1, 1, dim.width-2, dim.height-2);
     g.setColor(Color.blue);
     g.drawOval(1, 1, dim.width-2, dim.height-2);
  };
};

I compile the Bean using JDK 1.3.0-C (I’ve tried the 1.2.2 distributed along
with JBuilder too), and I register it as an ActiveX control using the Packager
class (also the one distributed with JDK 1.3.0-C).

Then I start Word97 (SR-2), add a little text and insert the bean. Then I
deselect the bean and select it again (necessary to get resize handles), and
resize the bean using the mouse.

The bean is gone! (that is, it doesn’t display anything).

If i double-click the invisible bean, it appears again – but the moment I
deselect it, it disappears again.

As an aside, if I now choose to print the document, the bean magically
reappears.

My diagnosis: the display cache provided by ActiveX isn’t used properly by the
ActiveX bridge during resize. When I print the document, an update of the cache
is forced, causing the symptoms to disappear.
(Review ID: 111658)
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