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From: Tak Kunihiro <tkk@misasa.okayama-u.ac.jp>
To: 34710@debbugs.gnu.org
Cc: 国広卓也 <tkk@misasa.okayama-u.ac.jp>
Subject: bug#34710: the mode line flicks on set-window-vscroll
Date: Sat, 2 Mar 2019 19:25:13 +0900	[thread overview]
Message-ID: <3D005746-B3FB-4915-A406-10DD0935C671@misasa.okayama-u.ac.jp> (raw)

On Emacs-26.1.92 build for macOS, I see the mode line flicks when I
scroll-up using pixel-scroll-mode and mouse wheel.  The mode line does
not flick on scrolling-down.  I do not see this problem in
Emacs-26.1.92 build for Windows.

macOS$ /Downloads/emacs-26.1.92/nextstep/Emacs.app/Contents/MacOS/Emacs -Q
M-x pixel-scroll-mode
M-: (pixel-scroll-up 1) ; => the mode line flicks
M-: (pixel-scroll-down 1) ;=> no flick

I narrow down the problem and notice that following
two blocks response differently.

#+begin_src emacs-lisp
(dolist (vs (number-sequence 1 10))
  (set-window-vscroll nil vs t)
  (sit-for 0))
;; the mode line flicks
#+end_src

#+begin_src emacs-lisp
(dolist (vs (number-sequence 1 10))
  (set-window-vscroll nil vs t))
;; no flick
#+end_src

Do you have idea?






             reply	other threads:[~2019-03-02 10:25 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-02 10:25 Tak Kunihiro [this message]
2019-03-02 20:10 ` bug#34710: the mode line flicks on set-window-vscroll Alan Third
2019-03-03  4:15   ` Tak Kunihiro
2019-03-04  9:06   ` Robert Pluim
2019-03-04 19:25     ` Alan Third
2019-03-04 21:07       ` Robert Pluim
2019-03-04 22:45         ` Alan Third
2019-03-05  9:06           ` Robert Pluim
2019-03-05 17:09             ` Robert Pluim
2019-03-06  8:06               ` Alan Third
2019-03-06  9:13                 ` Robert Pluim
2019-03-07  0:25 ` Tak Kunihiro

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