From: Eli Zaretskii <eliz@gnu.org>
To: Keith David Bershatsky <esq@lawlist.com>
Cc: 36633@debbugs.gnu.org
Subject: bug#36633: Scrolling by pixels: visible stretch glyphs overwrite header-line.
Date: Sat, 13 Jul 2019 09:19:28 +0300 [thread overview]
Message-ID: <83zhli1mof.fsf@gnu.org> (raw)
In-Reply-To: <m2v9w6bs63.wl%esq@lawlist.com> (message from Keith David Bershatsky on Fri, 12 Jul 2019 19:10:44 -0700)
> Date: Fri, 12 Jul 2019 19:10:44 -0700
> From: Keith David Bershatsky <esq@lawlist.com>
>
> Step 1: Launch Emacs 26.
>
> Step 2: Evaluate the following code.
>
> (progn
> (find-library "simple")
> (pixel-scroll-mode 1)
> (re-search-forward "\t\t\t\t\t" nil t)
> (set-window-start (selected-window) (match-beginning 0))
> (setq header-line-format "hello-world")
> (setq buffer-display-table (make-display-table))
> (aset buffer-display-table
> ?\t
> (vector (make-glyph-code ?\u00BB 'font-lock-warning-face)
> (make-glyph-code ?\t 'highlight)))
> (setq tab-width 8))
>
> Step 3: Move the mousewheel downward one time; i.e., one ratchet.
>
> Step 4: Observe the visible stretch glyphs overwriting the header-line.
This doesn't happen to me on MS-Windows, so I think this is
Darwin-specific.
Can someone try reproducing this on GNU/Linux and report?
next prev parent reply other threads:[~2019-07-13 6:19 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-13 2:10 bug#36633: Scrolling by pixels: visible stretch glyphs overwrite header-line Keith David Bershatsky
2019-07-13 6:19 ` Eli Zaretskii [this message]
2019-07-13 8:32 ` Stefan Kangas
2019-07-13 8:39 ` Eli Zaretskii
2019-07-14 10:39 ` Alan Third
2019-07-14 16:47 ` Keith David Bershatsky
2019-07-15 12:26 ` Tak Kunihiro
2019-07-16 20:38 ` Alan Third
2019-07-14 16:52 ` Keith David Bershatsky
2019-07-17 6:34 ` Keith David Bershatsky
2019-07-17 18:31 ` Alan Third
2019-07-17 19:08 ` Keith David Bershatsky
2019-07-17 23:31 ` Tak Kunihiro
2019-07-18 3:56 ` Keith David Bershatsky
2019-07-27 17:32 ` Alan Third
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