Le 2 novembre 2017 11:24:19 GMT+01:00, Pavel Sanda <sa...@lyx.org> a écrit :
>Jean-Marc Lasgouttes wrote:
>> Le 31 octobre 2017 13:36:47 GMT+01:00, Jean-Marc Lasgouttes
><lasgout...@lyx.org> a écrit :
>> >Yes 2 is good for fixing the symptom, but it is very fragile...
>>
>> We could also try
>> 4. Note when we have requested a repaint and exit early from
>paintEvent() when we did not ask for this repaint. (Or even boldlier do
>a full metrics+draw).
>
>like this?
>
>int process=0; //0 - not updating; 1 - just in update; >1 update
>requested while in update
>fun update(){
> //not a thread safe
> if (process) {process++; return;}
> process++;
>
> do_updates();
>
> process--;
> if (process) {process=0; assynchronously_trigger_new_update();}
>
>}
No it is not a recursion issue, but about knowing who asked for update. I would
set a Boolean request_redraw in requestRedraw() and reset it to false after
redraw is done.
JMarc
