Phantom mouse movement issues with macOS

[Jean-Marc Lasgouttes]

Le 04/09/2023 à 16:39, Jürgen Spitzmüller a écrit :
> Am Montag, dem 04.09.2023 um 16:31 +0200 schrieb Jean-Marc Lasgouttes:
>> Dear Devvies,
>>
>> These last weeks I have seen without really thinking about them
>> several
>> macOS issues where mouse movement occurred when they should not.
>>
>> I decided to search Qt bugs about that and voilà!:
>> https://bugreports.qt.io/browse/QTBUG-111170
>>
>> This bug has been fixed in Qt 6.5. It is not clear whether it existed
>> in 5.x.
>>
>> Does this ring a bell?
> 
> It does. See
> 
> https://www.lyx.org/trac/ticket/12418
> 
> and the fix that (maybe only humbly) addresses this.

The fix looks good in principle. How does this relate with the code at 
the beginning of GuiWorkArea::mouseMoveEvent? Would making this code 
unconditional solve our issue? We could replace the equality check with 
a distance less than a pixel, for example.

JMarc