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bug#3459: NS: mouse-face flicker
From: |
David Reitter |
Subject: |
bug#3459: NS: mouse-face flicker |
Date: |
Wed, 3 Jun 2009 12:37:19 -0400 |
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.
- bug#3459: NS: mouse-face flicker,
David Reitter <=