[Cuis-dev] VectorGraphics and Morph

[Juan Vuletich]

Oh, I see!

When I started reading what you said, the idea of integrating your 
caching strategy within the framework popped in my mind and I couldn't 
see anything else for a while.

It is true, what you actually suggested is completely different. Still, 
the general solution to allow a lot of VectorGraphics stuff to be usable 
right now would be a great thing to have. Let's keep thinking and 
discussing this for a couple of days before choosing an approach.

Cheers,

On 6/19/2020 11:59 AM, Hilaire Fernandes via Cuis-dev wrote:
>
> In DrGeo canvas (with Pharo's cairo canvas), I don't use cached forms, 
> the whole canvas is top down re-draw when marked dirty. Brutal but a 
> long time ago I discovered that in this specific situation it was much 
> faster rather than Morph update mechanism based on dependencies.
>
> In some DrGeo canvas you can have a lot math items (models).  Each 
> model is rendered as a morph in the canvas, it eases the debugging as 
> you can inspect a faulty item with the help of the halo.
>
> Not sure it is the right way to go for a more general approach, but a 
> dedicated PasteupMorph will clarify how ones can write a small 
> interactive application.
>
> Not sure I was clear.
>
> Le 19/06/2020 à 16:42, Juan Vuletich a écrit :
>>
>> You mean making your caching strategy part of the framework? Sounds 
>> like a good idea, and not too hard to do (you already did the work). 
>> Still, Morphs would need a message to invalidate the cached Form and 
>> redraw it again with VectorCanvas, right? Right now, you are caching 
>> 2 Forms, but a genera framework solution should allow easily 
>> invalidating the cached form without needing to know how many 
>> variants could exist, and what triggers the change.
>>
>> This is getting really interesting. Let's move it forward!
> -- 
> GNU Dr. Geo
> http://drgeo.eu
> https://pouet.chapril.org/@hilaire


-- 
Juan Vuletich
www.cuis-smalltalk.org
https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev
https://github.com/jvuletich
https://www.linkedin.com/in/juan-vuletich-75611b3
@JuanVuletich

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