D17245: Add string formatting function to property info

[Alexander Stippich]

astippich added inline comments.

INLINE COMMENTS

> bruns wrote in formatstrings.cpp:81
> Thats somewhat ambigous - flipped along the vertical axis, or top/bottom flipped?

Actually I don't know, I just copied the code from Dolphin into here.
Seems to be a common term though according to https://docs.microsoft.com/en-us/uwp/api/windows.storage.fileproperties.photoorientation
GIMP describes Flip vertically as top/bottom, see https://docs.gimp.org/2.10/en/gimp-layer-flip-vertical.html

> bruns wrote in formatstrings.cpp:83
> Clockwise or CCW?

CCW, see https://docs.microsoft.com/en-us/uwp/api/windows.storage.fileproperties.photoorientation.

REPOSITORY
  R286 KFileMetaData

REVISION DETAIL
  https://phabricator.kde.org/D17245

To: astippich, broulik, bruns, mgallien
Cc: ngraham, kde-frameworks-devel, #baloo, ashaposhnikov, michaelh, astippich, spoorun, bruns, abrahams
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