[Qgis-developer] [plugins] refreshing canvas

[Luigi Pirelli]

I understand that you don't have a use case that reproduce the problem!
Can you explain better what the meaning of "customized version of
Dockable Mirror Map"?

May you file an issue for the plugin with all data displayed in
help-about of qgis?

Just an idea, may you also test if this append with multithread
rendering disabled?

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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