2009/10/3 Yoshiki Ohshima <yoshiki at vpri.org>:
> At Fri, 02 Oct 2009 08:53:26 -0300,
> Juan Vuletich wrote:
>>
>> Playing a bit with it (in Cuis), it seems to happen because of unneeded
>> calls to #changed. I could avoid some of them by making property setter
>> methods do nothing if the property is set. For example,
>> BorderedMorph>>#borderWidth: TextMorph>>#backgroundColor: and
>> TransformMorph>>#offset can use a check with the argument and just exit,
>> like for example Morph>>#extent:.
>
>  Ah ha.  Good catch.
>
>> Besides,
>> MenuMorph>>#popUpAt:forHand:in:allowKeyboard: does not need the last
>> line (self changed).
>
>  Right.  fillStyle: for example does it.
>
>> In any case, unneeded calls to self changed are usual, as it says in the
>> last comment of TextMorph>>#fit. So, I think that the check and early
>> exit you propose in #recordInvalidRect: is a good idea and will include
>> it in Cuis.
>
>  Thank you for validating the idea!
>

I think that catching excessive #changed sends is like hunting for a ghosts :)
There should be a point, which could check that invalidated rectangle
is already in damage recorder.


> -- Yoshiki
>
>



-- 
Best regards,
Igor Stasenko AKA sig.