[Development] QtQuick - Automatically Repainting Canvas

[Juan Pedro Bolívar Puente]

> I'm not sure. Gunnar would know. I've just been told that it's not cheap
> and I've seen that it's easy to misuse. It's not hard (and actually
> kinda fun) separating out the parts that need to be rendered less often
> to avoid unnecessary repaints.

I am curious about which kind of properties might be used in a 
repainting function that do not affect how the object looks.  I have the 
feeling that is the rare situation, not the common one, and thus the one 
to be treated in a special case, but not the default in a declarative 
context.

JP