What's wrong with my Progress Monitor and how do I fix it?

Question

Hello,
My progress monitor fails to draw its insides, except when the task is already finished
Inside a class that extends SwingWorker<Void, Void> ...
     @Override
     public Void doInBackground() throws Exception
          try
               this.progressMonitor = new ProgressMonitor(jPanelControl,
                         "Running a Long Task",
                         "", 0, data.size());
                    //jPanelControl.invalidate();
                    progressMonitor.setMillisToPopup(500);
                    progressMonitor.setMillisToDecideToPopup(100);
               this.doProcess();
          catch (Throwable e)
               // TODO Auto-generated catch block
               e.printStackTrace();
          return null;
     }doProcess goes on a little journey until we get to:
                  progressMonitor.setNote("Importing " + this.title);
        for (int i = start; i < this.data.size(); i++)
               progressMonitor.setProgress(i);
                        //doing stuff each iterationQuickly after loading begins the box appears but it's not drawing the graphics inside the window (see screenshot for more)          
btw: That white background is Java3D, could it be interfering with the way Swing updates graphics?
Edited by: loza on Aug 25, 2009 4:03 AM

Answer 1

Hi,
take a look at [this sample from java tutorial|http://java.sun.com/docs/books/tutorial/uiswing/examples/components/ProgressBarDemoProject/src/components/ProgressBarDemo.java] ;
Regards,
Alan Mehio
London,UK