Review Request: fix infinite recurssion in kcategorizedview

[Jaime Torres Amate]

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http://git.reviewboard.kde.org/r/103313/
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Review request for kdelibs.


Description
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Basically, what I do is:
If there are one or zero columns, hide the horizontalScrollBar until it is needed. (it has worked in the past, but in another file).
Apply the same strategy with files.

Additional stuff:
Moved the common calculus of itemSize outside of the if then else.


This addresses bugs 213068 and 287847.
    http://bugs.kde.org/show_bug.cgi?id=213068
    http://bugs.kde.org/show_bug.cgi?id=287847


Diffs
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  kdeui/itemviews/kcategorizedview.cpp 46a1cde 
  kutils/kpluginselector.cpp ca0691d 

Diff: http://git.reviewboard.kde.org/r/103313/diff/diff


Testing
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Krunner config does not loop (neither kgetnewstuff from kstars). I can not test with amarok (I've hit by an amarok start bug).
Please, test with other programs.


Thanks,

Jaime Torres Amate

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