Review Request 108825: Fix QPainter problem in IconItem when trying to paint an icon with size==0

[Aleix Pol Gonzalez]

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Review request for Plasma and Marco Martin.


Description
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Whenever I started muon-discover I had a lot of issues from QPainter.
After some investigation (gdb + breakpoint to qWarning) I found out the problem was that we were trying to render a QIcon with size equal to 0.

This patch makes sure that we don't even try to paint empty icons, which solves the problem.


Diffs
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  plasma/declarativeimports/core/iconitem.cpp 765e7ed 

Diff: http://git.reviewboard.kde.org/r/108825/diff/


Testing
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After patching, ran discover again, without all the qWarnings.


Thanks,

Aleix Pol Gonzalez

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