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- x-gateway: rodan.UU.NET from help-lucid-emacs to alt.lucid-emacs.help; Thu, 19 Nov 1992 14:42:46 EST
- Date: Thu, 19 Nov 1992 11:42:25 PST
- Message-ID: <9211191942.AA09054@thalidomide.lucid>
- X-Windows: More than enough rope.
- From: jwz@lucid.com (Jamie Zawinski)
- Sender: jwz%thalidomide@lucid.com
- Subject: Re: Is it possible to make an 'invisible face' ?
- References: <SCHMID.92Nov19144342@fb3-s5.fb3-s7.math.TU-Berlin.DE>
- Newsgroups: alt.lucid-emacs.help
- Path: sparky!uunet!wendy-fate.uu.net!help-lucid-emacs
- Lines: 23
-
- In message <SCHMID.92Nov19144342@fb3-s5.fb3-s7.math.TU-Berlin.DE> Gregor Schmid wrote:
- >
- > I've been wondering, whether the option to make s.th. like an
- > 'invisible face' would be desirable. At the moment selective-display
- > doesn't work, and it is rather a cludge anyway.
-
- I like the idea of invisible faces more than selective display too. But
- it's about the same amount of work on redisplay to do this as it would be
- to make selective display work again. We're going to cut our losses and
- rewrite redisplay eventually, so trying to do this before then would be a
- waste.
-
- > Outline or folding modes take their time replacing ^J with ^M when
- > hiding a region.
- >
- > This could be done a lot faster and in line with the current design,
- > if an (invisible . t) attribute could be added to a face.
-
- Well remember that they're still going to have to take their time creating
- extents. They will probably have to create fewer of them, but creating an
- extent allocates memory, so it may end up being slower than turning ^Js
- into ^Ms.
- -- Jamie
-