I think this is not bug, but not sure what i can do...
If a opaque component is scaled, it may has inter-pixel boundaries. So if its got repainted, it might also triggers the paint() of the the parent component, which waste a lot of cpu time, when you repaint it often (meters, analyzers)
Possible solutions i not tried yet...
- make a opaque parent component which surrounds the component with 1 pixel
- call repaint (1,1, getWidth()-2, getHeight()-2), instead of repaint()
Any other tips, any advice would be helpful