I know that this question discussed thousand of times, but after the reading of the topics, I still confused with a simple example.
The situation is trivial.
I have an editor. The editor has one child and a timer. Inside the callback, I called the child method which triggers repaint().
And after this parent method Paint is called. But and I don’t want it to be called. I want to repaint only the child object.
I tried to use opaque(true) and still nothing.