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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 08:10:52 -0400
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux)

> I have installed changes so that the ellipsis are now shown in the
> same face as the preceding text, as that will probably be TRT for most
> applications.

Thanks for fixing this "longstanding" bug.

> An alternative was to use the face of the first character of the
> invisible text, but that looked really ugly for the things I tried.

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).

> 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.


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