Review Request: frame plasmoid: image load and scaling with threads

[Davide Bettio]

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Nothing has happened recently, so can I assume that I can ship this patch?

- Davide


On 2010-03-09 13:00:26, Davide Bettio wrote:
> 
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> http://reviewboard.kde.org/r/3162/
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> (Updated 2010-03-09 13:00:26)
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> 
> Review request for Plasma.
> 
> 
> Summary
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> 
> First of all: **This is a preview of the patch** I'm still working on it but I need some advices.
> Picture Frame does 2 really bad things (when used with huge images):
> * it loads huge images (in my case 4000x3000 pixels) into X11 pixmaps
> * plasma is blocked while the image is scaled
> As side effect also X11 freezes.
> 
> This patch solves both issues using threads.
> 
> I think that we should remove "smooth scaling" option from our configuration UI. what do you think?
> 
> 
> Diffs
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> 
>   /trunk/KDE/kdeplasma-addons/applets/frame/CMakeLists.txt 1093624 
>   /trunk/KDE/kdeplasma-addons/applets/frame/appearanceSettings.ui 1093624 
>   /trunk/KDE/kdeplasma-addons/applets/frame/configdialog.h 1093624 
>   /trunk/KDE/kdeplasma-addons/applets/frame/configdialog.cpp 1093624 
>   /trunk/KDE/kdeplasma-addons/applets/frame/frame.h 1093624 
>   /trunk/KDE/kdeplasma-addons/applets/frame/frame.cpp 1093624 
>   /trunk/KDE/kdeplasma-addons/applets/frame/imageloader.h PRE-CREATION 
>   /trunk/KDE/kdeplasma-addons/applets/frame/imageloader.cpp PRE-CREATION 
>   /trunk/KDE/kdeplasma-addons/applets/frame/imagescaler.h PRE-CREATION 
>   /trunk/KDE/kdeplasma-addons/applets/frame/imagescaler.cpp PRE-CREATION 
>   /trunk/KDE/kdeplasma-addons/applets/frame/picture.h 1093624 
>   /trunk/KDE/kdeplasma-addons/applets/frame/picture.cpp 1093624 
>   /trunk/KDE/kdeplasma-addons/applets/frame/slideshow.h 1093624 
>   /trunk/KDE/kdeplasma-addons/applets/frame/slideshow.cpp 1093624 
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> Diff: http://reviewboard.kde.org/r/3162/diff
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> 
> Testing
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> I've been using the frame plasmoid with this patch and everything works correctly and X11 doesn't freeze anymore while scaling huge pictures.
> There was only one regression on the resize size which now it's "less realtime" than before but it can be fixed with another patch (I think that I can get it working better than before).
> 
> 
> Thanks,
> 
> Davide
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>