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bug#3347: 23.0.93; unnecessary display updates with mouse-drag-region


From: YAMAMOTO Mitsuharu
Subject: bug#3347: 23.0.93; unnecessary display updates with mouse-drag-region
Date: Thu, 11 Jun 2009 09:28:10 +0900
User-agent: Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (Shij┼Ź) APEL/10.6 Emacs/22.3 (sparc-sun-solaris2.8) MULE/5.0 (SAKAKI)

>>>>> On Wed, 10 Jun 2009 12:50:23 -0400, Chong Yidong <address@hidden> said:

>> Mouse dragging over a text in the default face causes unnecessary
>> updates in other windows displaying the same buffer.
>>
>> I tried some older versions and found that the change below made the
>> difference.
>>
>> 2008-07-08  Chong Yidong  <address@hidden>
>>
>>             * xfaces.c (Finternal_merge_in_global_face): Save merged
>>             attributes for the default face back into the face vector.

> I don't see why.  Is Finternal_merge_in_global_face called when you
> perform mouse dragging?  It should not be (and on my current GNU/Linux
> build it isn't).

No.  The breakpoint didn't hit during mouse dragging.

                                     YAMAMOTO Mitsuharu
                                address@hidden





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