[haiku-bugs] Re: [Haiku] #7924: Enable optional Z-Snake functionality.
- From: "anevilyak" <trac@xxxxxxxxxxxx>
- Date: Wed, 17 Aug 2011 01:18:00 -0000
#7924: Enable optional Z-Snake functionality.
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Reporter: | Owner: stippi
KarmaMechanic | Status: closed
Type: | Milestone: Unscheduled
enhancement | Version: R1/alpha3
Priority: low | Keywords: z-snake menu snake tracker deskbar
Component: User | Blocking:
Interface | Platform: All
Resolution: invalid |
Blocked By: |
Has a Patch: 0 |
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Comment (by anevilyak):
Replying to [comment:4 KarmaMechanic]:
> Not a key feature desired by everyone, I did find it useful when adding
drivers to the old dano system I used to have on real hardware. Figured it
might be a semi-easy gui task for a newer developer, and set to off by
default. I guess this gives me a good reason to learn something more than
generic c++ lol.
I would advise against that, one of the many reasons it hasn't been done
is because it's actually quite hard to do correctly. You'll notice even
Dano didn't manage, seeing as Z-snake has visual artifacts in a lot of
situations. Path computation for it is non-trivial since you have to
figure out a path that looks good regardless of where the next menu window
is ultimately positioned, bearing in mind that could be above, below and
to either side of your current window.
Furthermore, as implemented in Dano it's currently impossible in Haiku
since it requires non-rectangular window support in the app_server, which
Haiku doesn't currently have, and which would require pretty significant
effort to implement (especially in a way that actually performs well). To
add to the complexity, the menu code is quite complex/messy as is, partly
due to the BeOS API design for them being horrible, which makes it even
harder to implement than it otherwise would be. None of the above is
something I'd advise attempting without very deep knowledge of the
involved components.
--
Ticket URL: <http://dev.haiku-os.org/ticket/7924#comment:6>
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