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bug#8470: ns_dumpglyphs_stretch creates display artifacts

From: Chong Yidong
Subject: bug#8470: ns_dumpglyphs_stretch creates display artifacts
Date: Thu, 28 Jul 2011 14:41:30 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

Alp Aker <address@hidden> writes:

> ns_dumpglyphs_stretch (in nsterm.m) checks to make sure that it
> doesn't overwrite a window's right fringe or scroll bar.  It doesn't
> perform an analogous check for overruns on the left.  This can cause
> display artifacts to appear when a window is horizontally scrolled.
> Here is a screenshot showing an extreme example of what can happen:
> http://www.pitt.edu/~aker/screenshot.png
> The problem has been around since at least 23.2.1 and still exists in
> the trunk.
> The following patch (against the latest nsterm.m) appears to fix the
> problem:

Thanks, applied to trunk.

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