[vtkusers] jsplitpane vtkCanvas in Java

[Baliki baliki]

Hello,
i have a Jsplitpane which divdes the window into two sides, left and right.
In left side i add a vtkCanvas with a vtkvolume in it (say c1).
In right side i also add a vtkCanvas with a vtkvolume (the canvas can be c2
or c3).
I have JCheckButton which defines which vtkvolume to add in right side (c2
or c3).
c1,c2,c3 are vtkCanvas with a vtkVolume in them.

I use split.setLeftComponent(c1) and split.setRightComponent(c2)

When i run the program for the first time, everything is ok.
I press JCheckButton and c3 replaces c2.-->ok
I press again JCheckButton and nothing appears! It is supposed to appear c2
again.
I've tried every possible way of validate, repaint, etc.
I noticed that if i set split.setRightComponent(new vtkCanvas()), instead
of  split.setRightComponent(c2), it works (in terms of it appears the
Canvas...)
I think that there is something wrong with the paint() and/or upadate()
method in vtkCanvas, vtkPanel and Canvas.

I would appreciate every help.
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