[QScintilla] Editor with a custom lexer keeps flashing when editing

[agarny at hellix.com]

On 2016-06-10 19:36, Phil Thompson wrote:
> On 31 May 2016, at 11:47 pm, agarny at hellix.com wrote:
>> 
>>>> Is the Qt update the only change? Can be behaviour be reproduced in 
>>>> a
>>>> simple, self-contained example?
>>> The only thing that is different is indeed the fact that I have
>>> upgraded Qt from version 5.4.2 to version 5.5.1. Everything else is
>>> the same, i.e. same version of OS X (10.11.5) and Xcode (7.3.1).
>>> I am going to see whether I can come up with a simple, self-contained 
>>> example.
>> 
>> Ok, I have just modified your example (so that it now makes use of my 
>> lexer) and I can confirm that the 'problem' I reported is indeed 
>> present (the code can be downloaded from 
>> https://www.dropbox.com/s/jhvrifo23vn72qv/example-Qt4Qt5.zip).
>> 
>> Once you have built and started your example, simply paste the 
>> following code:
>> 
>> ---------------------------------------
>> def model my_model as
>> enddef;
>> ---------------------------------------
>> 
>> From there, just try to edit the first line and you should see that 
>> line flashing repeatedly. With my 'fix', the problem disappears, but 
>> is it a good fix?...
> 
> Should be fixed in tonight's snapshot. Patch below.

Thanks a lot, Phil, it's all working fine for me on (Mac) OS X (after I 
undid what I had done in Scintilla and applied your QScintilla patch).

Alan