Review Request 120902: [KRatingPainter] Support monochrome icon themes (such as breeze)

[Christoph Feck]

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Review request for KDE Frameworks.


Bugs: 339863
    https://bugs.kde.org/show_bug.cgi?id=339863


Repository: kwidgetsaddons


Description
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The old code converted the yellow star icon to grayscale for the unrated part. With icon themes that have no color, this means the rating cannot be read, because all stars look identical.

This code adds support for a "rating-unrated" icon that theme creators can use for the unrated part. If the icon theme does not support this icon, it falls back to desaturating.


Diffs
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  src/kratingpainter.cpp 8e8a6a3 

Diff: https://git.reviewboard.kde.org/r/120902/diff/


Testing
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I couldn't actually test with breeze theme (Qt issue?), but I locally added a dedicated "rating-unrated.png" file to oxygen and tested both cases (present and not).


Thanks,

Christoph Feck

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