D29397: KPreviewJob : Support for DeviceRatioPixel

[Méven Car]

meven created this revision.
meven added reviewers: dfaure, broulik, Frameworks.
Herald added a project: Frameworks.
Herald added a subscriber: kde-frameworks-devel.
meven requested review of this revision.

REVISION SUMMARY
  Allow users of KPreviewJob to request a devicePixelRatio for generated thumbnails.
  The result image is not guaranteed to have this ratio, and users should paint it accordingly.
  
  The patch currently breaks binary compatibility though.
  I would like to have some feedback how to work out this issue.
  
  An update to kio-extras thumbnail is in the works.

REPOSITORY
  R241 KIO

BRANCH
  preview-dpr

REVISION DETAIL
  https://phabricator.kde.org/D29397

AFFECTED FILES
  src/widgets/previewjob.cpp
  src/widgets/previewjob.h
  src/widgets/thumbcreator.h

To: meven, dfaure, broulik, #frameworks
Cc: kde-frameworks-devel, LeGast00n, cblack, michaelh, ngraham, bruns
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