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From: David Reitter <david.reitter@gmail.com>
To: emacs-pretest-bug@gnu.org
Subject: bug#3459: NS: mouse-face flicker
Date: Wed, 3 Jun 2009 12:37:19 -0400	[thread overview]
Message-ID: <D22A9698-DCDB-4125-A26E-313F41B46950@gmail.com> (raw)

This happens only with the NS port, not on X:

Emacs -Q

(insert (propertize "Hello World" 'mouse-face 'highlight))

Hover mouse over the Hello World text.   Nothing special should happen.

Now select a region with the mouse or the keyboard.

Hover mouse over mouseface text again ==> Heavy flicker; there is a  
visible, sequential removal and redraw of the highlighted text with  
every mouse movement.


Diagnosis:

I'm not sure, hence this report.
One contributing factor is that we ns_flush() in ns_update_end().   
However, this is not just due to nested updates, and just adding  
ns_update calls in note_mouse_highlight alonedoesn't seem to help, at  
least when transient-mark-mode is on.






             reply	other threads:[~2009-06-03 16:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-03 16:37 David Reitter [this message]
2016-01-10 22:45 ` bug#3459: NS: mouse-face flicker Alan J Third
  -- strict thread matches above, loose matches on Subject: below --
2009-06-03 21:11 David Reitter
2009-09-18 21:42 Adrian Robert
2009-09-18 21:51 ` David Reitter

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