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Re: Question about display engine

From: Juri Linkov
Subject: Re: Question about display engine
Date: Fri, 09 Aug 2019 20:54:17 +0300
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (x86_64-pc-linux-gnu)

>>- extend highlighting to the window edge as most faces do now;
>>- highlight only to the end of lines as underline does now;
>>- limit highlighting to a fixed customizable column like
>>  display-fill-column-indicator defaulting to fill-column.
> Up to now we are only dealing with the first two cases... The third one
> will add even more complexity (and corner cases when dealing with dfci)
> for a very low gain (in my opinion) because I don't find yet any use
> case for it. I am not telling it is impossible, just unneeded.
> If you have a good use case for it, please share it.

The third one is for purely aesthetic reasons: a single window on a very
wide frame usually is full of ribbons (like on the first screenshot)
whereas for example, the second screenshot (that was edited) shows
how limiting face scope by fill-column is more visually pleasant.

Attachment: 1_window-edge-faces.png
Description: PNG image

Attachment: 2_fill-column-faces.png
Description: PNG image

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