D26910: Bugfix for fitsview, checking wrong width & height in initDisplayImage

[Hy Murveit]

murveit created this revision.
murveit added a reviewer: mutlaqja.
Herald added a project: KDE Edu.
Herald added a subscriber: kde-edu.
murveit requested review of this revision.

REVISION SUMMARY
  The check was for the image width & height, but the image can be downsampled in display.
  Should check the downsampled widths and heights.

TEST PLAN
  With this bug, the stretch preview was shown 1/4 size. With the bug-fix it should be back to full size.

REPOSITORY
  R321 KStars

BRANCH
  fitsview-buffer-bug (branched from master)

REVISION DETAIL
  https://phabricator.kde.org/D26910

AFFECTED FILES
  kstars/fitsviewer/fitsview.cpp

To: murveit, mutlaqja
Cc: kde-edu, narvaez, apol
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