D17120: Implement zooming with Ctrl+mouse wheel

[Yuri Chornoivan]

yurchor marked 3 inline comments as done.
yurchor added a comment.


  1. The property and functions are for QPropertyAnimation (proposed by Tomaz Canabrava to replace a good bunch of hand-written code by KmPlot authors), as it was already mentioned by Christoph Feck (thanks).
  
  2. I have tried to add QWheelEvent::DefaultDeltasPerStep threshold to mitigate potential unwanted behavior.

REPOSITORY
  R334 KmPlot

REVISION DETAIL
  https://phabricator.kde.org/D17120

To: yurchor, #kde_edu, tcanabrava
Cc: cfeck, aacid, tcanabrava, kde-edu, kde-doc-english, skadinna, narvaez, apol
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