D21830: Format photo exposure bias value

[Stefan Brüns]

bruns added a comment.


  In D21830#480185 <https://phabricator.kde.org/D21830#480185>, @astippich wrote:
  
  > In D21830#480181 <https://phabricator.kde.org/D21830#480181>, @bruns wrote:
  >
  > > Many cameras can be switched to 1/2 EV steps.
  >
  >
  > Damn ;) do you know any other values? In case not, I would add this case in a loop and stupidly try everything
  
  
  I think with 1/2 and 1/3 you have covered 99.9% of the cameras.
  
  You can quantize to 1/6, and if the fractional part is in {2,3,4}, use the "%1 %2/%3" format.
  
  To avoid the `if() { if() { if() { }}}` cascade, you may use a nested function (lambda) for the default case (format as double), and do an early return.
  
  How about integral/fractional instead of wholeNumber/remainder?

REPOSITORY
  R286 KFileMetaData

REVISION DETAIL
  https://phabricator.kde.org/D21830

To: astippich, bruns, ngraham
Cc: kde-frameworks-devel, #baloo, LeGast00n, domson, ashaposhnikov, michaelh, astippich, spoorun, ngraham, bruns, abrahams
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