Windows previews in qml plasmoid?

[Martin Gräßlin]

On Friday 29 June 2012 02:01:38 Michail Vourlakos wrote:
> Στις 29/06/2012 01:16 πμ, ο/η Martin Grδίlin έγραψε:
> > On Friday 29 June 2012 01:00:06 Michail Vourlakos wrote:
> >> The use case exists. It's about the WorkFlow plasmoid in which I am
> >> facing this issue:
> >> http://opentoolsandspace.org/en/projects/development/plasmoid-workflow
> > 
> > consider using a declarative KWin script. For example have a look at:
> > https://github.com/ghinda/arctos-dashboard
> > 
> >> For a start, I would be happy if I could take some screenshots(QPixmaps)
> >> from
> >> the kwin effect whenever the QML UI needs them. Instead of live preview,
> >> tasks screenshots in every 500ms for example.
> > 
> > This would be even worse than exposing the thumbnail from a KWin
> > perspective. Please do not even think about it :-)
> > 
> > And please give a try to the declarative KWin scripts. We have there a
> > thumbnail item and this is properly integrated into the compositor.
> > 
> > Cheers
> > Martin
> 
> Dear Martin,
> 
> declarative kwin scripting is more challenging than plasmoids. 
why? It's the same thing like a QML written Plasmoid
> I am
> almost sure that a hybrid
> situation is needed with C++ and QML for the spesific use case(either
> way the plasmoid
> supports all the needed functionality right now except the windows
> thumbnails).
it might be a solution for your use case but I'm completely against generic 
export of thumbnails due to the performance impact.
> 
> I dont know if this is possible with KWIn scripting, is it possible that
> maybe a KWin effect can do this?
> (backend in C++ and QML the ui?)
That's the idea behind declarative QML scripting: a very powerful user 
interface to replace effects. With declarative KWin scripts you get the 
complete power of KWin exposed + QML + anything you want to import from QML 
(e.g. dataengines).
> (for example the plasmoid currently uses atoms from Xlib in order to move
> a task from activity to activity, I dont think scripting can do this
> right now)
Right now not, but if you mention that to me, I can add the bindings in less 
than five minutes and with KWin scripting it does not need XAtoms.

Cheers
Martin
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