[Qgis-developer] [plugins] refreshing canvas

[Alexia Mondot]

Thanks for your answer.

Actually, I wonder if my refresh problem is not only on QGIS 2.2. I 
believe I had not reproduce this behaviour on QGIS 2.4 and 2.6. And I 
didn't know about the bug.
I have these two points to analyse.

The multithread rendering was available in QGIS 2.2 ??

I'm going to work on the two previous points.

Thanks again,
Alexia


On 24/11/2014 23:52, Luigi Pirelli wrote:
> could be related with this?
>
> https://hub.qgis.org/issues/9799
>
> check OTF reprojection combination
>
> regards, Luigi Pirelli
>
> On 24 November 2014 at 23:49, Luigi Pirelli <luipir at gmail.com> wrote:
>> may you also test with the last 2.6version?
>>
>> regards, Luigi Pirelli
>>
>> On 24 November 2014 at 01:16, Alexia Mondot <alexia at mondot.fr> wrote:
>>> Hi all,
>>>
>>> I have a plugin using a customized version of Dockable Mirror Map.
>>> I use it to display each processing result in a new view.
>>>
>>> I get a strange behaviour with my plugin :
>>> Some times, the canvas stays white. A scroll in it is fine to reload it and
>>> my image is displayed.
>>> I get this problem since the beginning of the development on QIGS 2.2. It is
>>> for me a "random" problem, because I can't say why I get these white canvas.
>>> But, when I get it I save the projet with the white view, and when reloaded,
>>> the canvas is still white.
>>>
>>> I've played with canvas.refresh(), canvas renderer flags and even with
>>> canvas.freeze().
>>> I can't understand the behaviour I get, maybe I have a wrong usage of the
>>> properties above.
>>> I also thought about triggerRepaint()...
>>>
>>> Thanks by advance,
>>> Alexia
>>>
>>>
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