D19190: Improve scroll wheel speed by basing it on label height, not icon height

[Arjen Hiemstra]

ahiemstra added inline comments.

INLINE COMMENTS

> ngraham wrote in kitemlistcontainer.cpp:267-268
> See https://bugs.kde.org/show_bug.cgi?id=403842

Note that in D25683 <https://phabricator.kde.org/D25683> I have used `QApplication::wheelScrollLines()` which to me seems to be the right method to use for this.

REPOSITORY
  R318 Dolphin

REVISION DETAIL
  https://phabricator.kde.org/D19190

To: ngraham, #dolphin, elvisangelaccio
Cc: ahiemstra, lots0logs, anthonyfieroni, kfm-devel, pberestov, iasensio, fprice, MrPepe, fbampaloukas, alexde, Codezela, feverfew, meven, spoorun, navarromorales, firef, ngraham, andrebarros, emmanuelp, mikesomov
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