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Problem with loaded image

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Hi all,

I've run into a rather strange problem, at least for me.  I've got an 
AWT Frame containing a Canvas at the center of a BorderLayout which an 
Image is painted on.

This Canvas returns the Image's size as preferred size, so on pack()-ing 
the Frame the Image exactly fits in to the Canvas.  This works so far.

However, during runtime the image gets changed, thus also the preferred 
size changes (becomes larger).  After this, I call pack() on the Frame 
again, and it resizes accordingly.  But in spite, the image is drawn 
only in the region of its old size, i.e., the new bigger part is gray 
and the image clipped (I'm calling repaint() after the pack() but that 
seems not to help).

But if I force a repaint by hiding and showing the window through my 
window manager, the image gets drawn completely.

I really have no clue about what the problem could be -- my only 
suspicion is this one:  I use a MediaTracker to load the image so I can 
query for its size; this MediaTracker is initialized with my Canvas as 
ImageObserver when it still has its old size.  Can this cause any 
problem, as only that part of the image is loaded or something like 
that?  It sounds strange to me, but is really the only possible reason 
coming to my mind...

I'm using JDK 1.5.0_06 on GNU/Linux.  If anyone is interested in the 
sources, they can be browsed at
http://minigolf.svn.sourceforge.net/viewvc/minigolf/trunk/src/
The Canvas-component talked about is
net.sourceforge.minigolf.visualizer.Visualizer

Many thanks,
Daniel

-- 
Got two Dear-Daniel-Instant Messages
by MSN, associate ICQ with stress --
so please use good, old E-MAIL!

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Problem with loaded image "Daniel Kraft" <daniel.kraft@THRWHITE.remove-dii-this> - 2011-04-27 15:36 +0000
  Re: Problem with loaded i "Roedy Green" <roedy.green@THRWHITE.remove-dii-this> - 2011-04-27 15:36 +0000
  Re: Problem with loaded i "A. Bolmarcich" <a..bolmarcich@THRWHITE.remove-dii-this> - 2011-04-27 15:36 +0000
    Re: Problem with loaded i "Daniel Kraft" <daniel.kraft@THRWHITE.remove-dii-this> - 2011-04-27 15:36 +0000
      Re: Problem with loaded i "A. Bolmarcich" <a..bolmarcich@THRWHITE.remove-dii-this> - 2011-04-27 15:36 +0000
        Re: Problem with loaded i "Daniel Kraft" <daniel.kraft@THRWHITE.remove-dii-this> - 2011-04-27 15:36 +0000

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