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Re: Variable pitch text filling

From: Eli Zaretskii
Subject: Re: Variable pitch text filling
Date: Wed, 01 Dec 2021 14:28:43 +0200

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: emacs-devel@gnu.org
> Date: Wed, 01 Dec 2021 06:38:01 +0100
> Eli Zaretskii <eliz@gnu.org> writes:
> > I was under the impression that you asked me to do this.  But don't
> > let this stop you from doing that yourself, if you want.
> You said you were going to work on the display_string min-width/C string
> thing, but I don't recall discussing who was going to do this thing
> (which is totally separate).

I thought you asked me (separately ;-) to work on both.

> > AFAIU, we need 2 separate features: (a) a variable to force all
> > characters to have width that is an integral multiple of some
> > "standard" pixel width; and (b) a display spec that would enlarge the
> > pixel width of every character with that display property by some
> > number of pixels.  The display spec can be called char-width.
> Well, there were three features that should all be text properties.  To
> recap:
> 1) Be able to specify a min width based on a "standard" char width (for
> "-" in the mode line, for instance)
> 2) A specific pixel width (for justification, for instance)
> 3) The integral multiple (i.e., "grid")
> The third thing should be a buffer-local variable in addition to a text
> property.

We already have 1), it just needs some loving care, AFAIU?  What is
missing in min-width to provide 1) ?

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