GNU bug report logs - #13723
24.2.93; Fringe icons corrupt buffer separator line

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: David Engster <deng <at> randomsample.de>
Subject: bug#13723: closed (Re: bug#13723: 24.2.93; Fringe icons corrupt
 buffer separator line)
Date: Sun, 17 Feb 2013 16:25:02 +0000

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Your bug report

#13723: 24.2.93; Fringe icons corrupt buffer separator line

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 13723 <at> debbugs.gnu.org.

-- 
13723: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=13723
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 13723-done <at> debbugs.gnu.org, deng <at> randomsample.de
Subject: Re: bug#13723: 24.2.93; Fringe icons corrupt buffer separator line
Date: Sun, 17 Feb 2013 18:23:49 +0200

> From: Glenn Morris <rgm <at> gnu.org>
> Cc: David Engster <deng <at> randomsample.de>,  13723 <at> debbugs.gnu.org
> Date: Sat, 16 Feb 2013 19:34:36 -0500
> 
> Eli Zaretskii wrote:
> 
> > Glenn, I'd like to install this on the emacs-24 branch, any
> > objections?  The change looks a no-brainer, and obviously correct.
> 
> If you want to, go ahead.

Done in revision 111273 on emacs-24 branch.

Closing.

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From: David Engster <deng <at> randomsample.de>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.2.93; Fringe icons corrupt buffer separator line
Date: Fri, 15 Feb 2013 18:45:20 +0100

Maybe a small thing, but nonetheless irritating: I noticed that when
scrolling buffers on a split frame with disabled scrollbars, the small
line separating two buffers can get corrupted by icons in the fringe. It
seems that this line doesn't get redrawn correctly, or maybe not at all.

You should be able to reproduce this issue with the following recipe:

* emacs -Q

* In the *scratch* buffer, insert

(progn
  (scroll-bar-mode -1)
  (setq truncate-partial-width-windows nil)
  (toggle-truncate-lines -1)
  (with-current-buffer (get-buffer-create "test")
    (erase-buffer)
    (dotimes (i 100)
      (insert (make-string 500 65) "\n")))
  (pop-to-buffer-same-window "test")
  (goto-char (point-max))
  (split-window-right)
  (other-window 1)
  (split-window-right)
  (pop-to-buffer-same-window "test")
  (goto-char (point-min))
  (while (not (eobp))
    (scroll-up-command)
    (redisplay t)))

and evaluate.

* The separator line between the first and the second buffer should now
  have gaps. Here's a screenshot:

  http://www.randomsample.de/emacs-bug.jpg

As soon as the Emacs window gets redrawn, everything's back to
normal.

-David

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