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Re: Mouse highlighting and fonts

From: Stephen Berman
Subject: Re: Mouse highlighting and fonts
Date: Tue, 27 May 2008 15:24:39 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux)

On Mon, 26 May 2008 23:26:56 -0400 Chong Yidong <address@hidden> wrote:

> Chong Yidong <address@hidden> writes:
>> BTW, another mouse-highlighting bug I reported earlier is still present.
>> Under certain circumstances, the area to the left and/or right of the
>> physical cursor doesn't acquire the proper mouse-face.
>> This appears to be a long-standing bug, but one that didn't show up
>> until the new font code.  That's because it arises as follows: when the
>> cursor glyph has a nonzero lbearing or rbearing (i.e., it overlaps with
>> its neighbors), the neighboring glyphs are redrawn, and this can
>> overwrite the mouse-face highlight.  See xdisp.c:19934.  This didn't
>> show up because previously, overlapping glyphs were generally not
>> encountered.
>> I'll try to fix this once I get the time, unless someone else fixes it
>> first.
> I've checked in a rough fix into CVS.

This fixes the bugs I reported, referenced in this thread.  Thanks!

Steve Berman

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