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Article #124

Pie menus

#124
From: Mike (I'll think of something ye...
Date: Sat, 28 Oct 1989 05:33
38 lines
2240 bytes
>> > > That's an implementation detail, then. On the Amiga, for instance, the
>> > > menus don't go through the layers system: the screen is frozen while the
>> > > menu is up, but because it's so fast the screen isn't frozen for very long.
>> 
>> > Dubious advantage.
>> 
>> Well, it's a tradeoff. The biggest overhead in windowing seems to be managing
>> the clipping lists rather than actually copying bits around. For something
>> that's guaranteed to be short duration (unless you replace your mouse buttons
>> with toggle switches :->) it's an OK tradeoff.

It's not really an implementation detail. The win on pie menus is that
you can make most any selection without being able to see the menu.
I've as yet to run into any rectangular menu system (other than pie
menus done in a rectangle) of which this was true.

The result of this is that the menu selections wind up in the motion
domain, not the menu domain. I make a selection without seeing any
menus, because I know which way to go (up is paste; right click up
opens a window on violet.berkeley.edu, etc). After the selection is
made, rendering the menu just annoys me (by flashing it on and then
deleting it), and doesn't really tell me anything that completing the
action would.

If a pie menu system renders menus even if the selection has been
made, it's got a major misfeature, if not an outright bug. It sounds
like Don may have changed things so that it does the rendering anyway.
This is dissapointing.

	<mike


--
Es brillig war. Die schlichte Toven			Mike Meyer
Wirrten und wimmelten in Waben;				mwm@berkeley.edu
Und aller-mumsige Burggoven				ucbvax!mwm
Die mohmem Rath' ausgraben.				mwm@ucbjade.BITNET
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From: mwm@mica.berkeley.edu (Mike (I'll think of something yet) Meyer)
Newsgroups: comp.windows.misc
Subject: Pie menus
Message-ID: <1989Oct28.053358.1517@agate.berkeley.edu>
Date: 28 Oct 89 05:33:58 GMT
Sender: usenet@agate.berkeley.edu (USENET Administrator;;;;ZU44)
Reply-To: mwm@mica.berkeley.edu (Mike (I'll think of something yet) Meyer)
Organization: Missionaria Phonibalonica
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