Hilaire,

I will indeed consider it, but it will take me time to get to your level of 
understanding of Polymorph.  My priorities are networking, serial 
communications, printing (which I am dreading) and then finally GUI 
construction.  The last two are backwards, but the GUI does me no good if I 
can't print on Linux.  Somewhere in there I hope to pull a big thorn out of my 
foot by moving various machines to Linux.  With a working GUI+printing, the 
rest of the boxes go to Linux, and the drinks are on me :)

Understood about your objectives, but I think they SHOULD include teaching 
efficient updates.  When MS did this correctly, they did the simplest thing 
that would work, and then separately modified it for efficiency.  Smalltalk is 
not the fastest language in existence, Pharo is not the fastest among its 
peers, and even if it were, we should be doing things better and more 
efficiently than the rest of the world.  It is nuts that we need 2GB of RAM to 
boot an OS and read email; while that sloppiness arguably begins in Redmond, it 
can be attenuated here.

Bill



________________________________________
From: [email protected] 
[[email protected]] On Behalf Of Hilaire Fernandes 
[[email protected]]
Sent: Friday, June 11, 2010 9:46 AM
To: [email protected]
Subject: Re: [Pharo-project] GUI Polymorph

Schwab,Wilhelm K a écrit :
> Hilaire,
>
> It was interesting to watch MS' position on GUI examples change over time.  
> Visual C++ started out teaching how to create efficient software.  Then one 
> day those examples were gone and all they could talk about was "smooth 
> scrolling" which turned out to be a way to make the machine do the 
> inefficient thing four times instead of once.
>
> The idea of altering the model, finding out what is invalidated, marking that 
> as closely as can be done within bounds of common sense (or until diminishing 
> returns), and then drawing just the changed parts is non-intuitive and VERY 
> important.  You have done a wonderful job so far, but optimization deserves 
> attention.


Please fell free to search and to document it. As I wrote in my previous
email, my objective writing this documentation was not how to
efficiently implement a paint canvas.

Hilaire


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