D14880: Read USD entry times directly and pretty-print on-demand

[Kai Uwe Broulik]

broulik created this revision.
broulik added reviewers: Dolphin, dfaure, elvisangelaccio.
Herald added a project: Dolphin.
Herald added a subscriber: kfm-devel.
broulik requested review of this revision.

REVISION SUMMARY
  This avoids creating a QDateTime object with all the timezone processing that comes with it since we're only interested in the actual pretty date once we show the role to the user.

TEST PLAN
  - Similar to D14394 <https://phabricator.kde.org/D14394>
  - Noticed that creation time wasn't pretty-printed, addressed by D14878 <https://phabricator.kde.org/D14878>
  - Saves 8ms opening a folder with 500+ files
  - Dates still show correctly

REPOSITORY
  R318 Dolphin

REVISION DETAIL
  https://phabricator.kde.org/D14880

AFFECTED FILES
  src/kitemviews/kfileitemlistwidget.cpp
  src/kitemviews/kfileitemmodel.cpp

To: broulik, #dolphin, dfaure, elvisangelaccio
Cc: kfm-devel, spoorun, navarromorales, firef, andrebarros, emmanuelp
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