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bug#44664: 28.0.50; troubles with some chars in term

From: Eli Zaretskii
Subject: bug#44664: 28.0.50; troubles with some chars in term
Date: Sun, 29 Nov 2020 17:46:25 +0200

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: schwab@linux-m68k.org,  bugs@gnu.support,  44664@debbugs.gnu.org
> Date: Sun, 29 Nov 2020 10:58:16 +0100
> Eli Zaretskii <eliz@gnu.org> writes:
> >> You mean they are so wide that compressing them will make them illegible?
> >
> > I don't know how to "compress" glyphs, actually.  I hoped that we can
> > get away with just "padding", which boils down to enlarging their
> > width metrics.  But if we need to make the width significantly smaller
> > than the font glyph font says, I don't know what would be the effect
> > of that, and I have no idea how to "shrink" a glyph on display.
> Oh, I thought you said that we shrink some glyphs vertically already?

No, we just override the metrics, which claims unreasonably large
height.  The glyphs themselves are not as tall as the metrics says.

> I imagined shrinking the width of a glyph would mean just throwing away
> some vertical lines, or specify a transformation matrix, or something.
> (I have not looked at the code, as you can tell.)

We can easily clip the glyph, yes.  I don't know how legible will the
result be.  Transformation matrices is not something I'd love to use

Eventually, we need to see how many characters, if any, exhibit this
problem.  Maybe the issue is minor.

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