Hi Bert,

Thaks for your comments, Bert. This is the kind of feedback I like the most!

Bert Freudenberg escribió:
>> Something pending is the means for drawing only what is really 
>> visible. The first I can think of is a 2nd parameter to #drawOn:, 
>> consisting of a clipping rectangle.
>
> Or, store it in the canvas. Not sure which way would be better.
>
Mmmmhhhh. Not sure. Will have to think about this, and perhaps 
experiment a bit with the alternatives, to see where they lead.
>> It is usually nil.
>
> Why would it be usually nil? You would certainly want to clip at least 
> against the display bounds, wouldn't you? And you might want to 
> optionally clip against the parent's bounds.
>
> - Bert -
>
Yes. I'm not doing it yet, but you're right. It should be used like the 
current ("standard Morphic") #clipBy:during: although I'm not very fond 
of that selector. If it is only used by #drawSubmorphsOn:, I'd rather 
set and reset the clipping rectangle there. Again, this is too much 
detail for "abstract thinking" for me. I will do some experiments.

Cheers,
Juan Vuletich