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Re: Pixel-based display functions

From: Stefan Monnier
Subject: Re: Pixel-based display functions
Date: Sat, 31 Jan 2015 15:33:11 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux)

> Lars doesn't want to compute pixel sizes to repeat what the display
> engine does.  He wants to do that to implement stuff that the display
> engine cannot, at least currently (if it ever should).

AFAICT he wants to compute the pixel length of a chunk of text.
I don't see why we can't export to Elisp a C function that does that
re-using the same machinery used by the redisplay (and by vertical-motion).


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