Re: address@hidden: Re: mode-line redisplay bug]

[YAMAMOTO Mitsuharu]

>>>>> On Wed, 12 Oct 2005 15:40:50 +0200, address@hidden (Kim F. Storm) said:

>>> * xterm.c (handle_one_xevent): Clear last_mouse_glyph on mouse
>>> up/down.
>> 
>> Does it also work when the glyph under the mouse is changed while
>> grabbing a mouse button?

> Not 100% -- it fails if it is a BIG glyph that changes to a smaller
> glyph.

> But how often does that happen?  Will anybody really notice?

It is very rare.  But Emacs Lisp developers will be confused if they
encounter such a situation.  Another rare case would be such that
mouse tracking is not initiated by a mouse button on/off.

BTW, it might be better not to remember last_mouse_glyph (make it
empty) when the glyph under the mouse is an image.  It may have
multiple help strings via hot-spot areas.  And because usually a big
glyph is an image, that would lower the possibility of anomaly above.

                                     YAMAMOTO Mitsuharu
                                address@hidden