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Re: address@hidden: mixed faces of invisibility ellipses]
From: |
Stefan Monnier |
Subject: |
Re: address@hidden: mixed faces of invisibility ellipses] |
Date: |
Tue, 19 Apr 2005 08:36:08 -0400 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux) |
>> I'd generally be happy with the `default' face. I think inheriting the face
>> of the preceding char or of the next char doesn't make much sense. At least
>> not in outline-minor-mode as I use it (the hidden text is a piece of
>> font-locked code, so the face you get for the ellipsis is pretty
>> arbitrary). I think the only case where inheriting a face might make sense
>> is when that face is applied to the whole invisible text (and thus doesn't
>> just belong to that text but to the whole region).
> Makes sense, but not that easy to do.
I know.
> What about this heuristic:
> -----VISIBLE-----][----INVISIBLE---
> is shown as
> -----VISIBLE-----]...
> To determine the face for ..., we compare the face of the
> last visible char ']' and first invisible char '['.
> If they have the same face, use that common face for the ellipsis.
> Otherwise, use the default face for the ellipsis.
That might work well enough. What do previous releases do?
>>> Perhaps it would make sense to have an "ellipsis-face" property that
>>> could be placed on the invisible text to override the face used
>>> for the ellipsis. That would be a fairly trivial change.
>>
>> I don't know about an ellipsis-face property, but when the text is made
>> invisible with an overlay, it would make a lot of sense for the overlay's
>> `face' property to determine the face of the ellipsis. It would be even
>> better if the `mouse-face', `keymap', and `help-echo' properties of the
>> overlays were also "applied" to the ellipsis, so we could make ellipsis
>> clickable and self-describing.
> Interesting idea, but non-trivial to do. Post-release stuff...
Definitely,
Stefan
Re: address@hidden: mixed faces of invisibility ellipses], Richard Stallman, 2005/04/19