Review Request: use QPropertyAnimation instead of QTimeLine to animated clear button in KLineEdit

[Hugo Pereira Da Costa]

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Review request for kdelibs.


Summary
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As discussed with Aaron, changed QTimeLine into QPropertyAnimation. This should provide smoother and more efficient fade-in/fade-out effect.

This is the first of two patches.
The second will use different pixmaps on mouse hover, but might also require change to klineedit.cpp


Diffs
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  /trunk/KDE/kdelibs/kdeui/widgets/klineedit_p.h 1118793 

Diff: http://reviewboard.kde.org/r/3808/diff


Testing
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Same as before: dolphin/konqueror


Thanks,

Hugo