GNU bug report logs - #8651
`raise' properties on NextStep

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Packages: ns, emacs;

Reported by: Alp Aker <aker <at> pitt.edu>

Date: Wed, 11 May 2011 07:51:01 UTC

Severity: important

Tags: patch

Merged with 7831, 8913

Found in version 23.2

Done: Chong Yidong <cyd <at> stupidchicken.com>

Bug is archived. No further changes may be made.

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Alp Aker <aker <at> pitt.edu>
Cc: 8651 <at> debbugs.gnu.org
Subject: bug#8651: `raise' properties on NextStep
Date: Wed, 11 May 2011 11:44:18 -0300

> As far as I can see, the problem is this (please correct me if
> I've misunderstood the display routine, which is
> likely).  Changes in vertical character position that result from
> display properties are processed in xdisp.c, and those changes
> are reflected in the value of the ybase field.  But many of the
> gylph-drawing functions in nsterm.m and nsfont.m only check the y field
> to determine the vertical position of a glyph; they don't use ybase 
> at all.

Thanks for the bug report and diagnostic, which sounds just right.
Hopefully someone familiar with the NS code will find the time to write
an actual patch for it.


        Stefan
This bug report was last modified 13 years and 299 days ago.

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