-----Original Message----- From: ui-bounces@lists.squeakfoundation.org [mailto:ui-bounces@lists.squeakfoundation.org]On Behalf Of Igor Stasenko Sent: 18 April 2008 7:32 AM To: Squeak's User Interface Subject: Re: [UI] Just a thought...
2008/4/18 Michael van der Gulik mikevdg@gmail.com:
On Thu, Apr 17, 2008 at 5:15 AM, Gary Chambers
wrote:
It might be nice that we have some more paint rules in BitBlt. A
"fuzz/blur"
effect would be nice and take the load off the Squeak code for such
things.
Just wanting to get more contemporary with the ui look without large performance penalties.
Not quite liking the way that effects are hidden behind
canvas (leading to
a
bloated interface, perhaps (c.f. #drawImage...
#drawTranslucentImage...)).
Not sure where the balance should be. Looks like a
choke-point that is too
useful to bypass on a case-by-case basis.
If you were to implement some more interesting effects in
BitBLT, how would
you make sure that Morphs that use this code will still work on other targets such as Rome, Postscript Canvases, VNC etc?
Would need to have fallback options for backends that do not directly support any new features. Sig, below, seems on the right track in terms of refactoring.
- BitBlt already contains many blitting rules which is problematic to
support on different back ends. 2. In future, i suppose, we need a more functional approach how to define drawing operations. To describe a blitting/drawing operations with classes/objects not with integer numbers, like we currently have, which is meaningless and hard to determine how they working.
Drawing operation should be represented by object - a function(source, destination, arguments..), where function is fully reflected in language.
Agree about the operation being properly represented *but* still need the extra performance of a backend (primitive) operation. People are complaining enough that Morhpic is slow...
Gulik
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-- Best regards, Igor Stasenko AKA sig. _______________________________________________ UI mailing list UI@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/ui