Review Request: Use QLinearGradient in KGradientSelector

[Christoph Feck]

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http://reviewboard.kde.org/r/3565/
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Review request for kdelibs.


Summary
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Apparently, the old code comes from Qt 3 times, where no gradients where available. Additionally, the code allows transparent colors in the gradient, and draws them over a black/white chessboard pattern. I need this for alpha support KColorDialog (will prepare a separate review request for that).


Diffs
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  /trunk/KDE/kdelibs/kdeui/widgets/kselector.cpp 1113745 

Diff: http://reviewboard.kde.org/r/3565/diff


Testing
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Compiles and works. It should be faster also, but I did not make any benchmark.


Thanks,

Christoph