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  1. Qt
  2. QTBUG-64229

setMask does not work well on retina due to QRegion resolving QRegion::Ellipse to rects without scale factor

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      When setting a mask on a top level window it will not display correctly on retina displays. This can be tested using the shapedclock example in qtbase/examples/widgets/widgets, the outline is not smooth, whereas on a non-retina display it is smooth.

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        3. image-2019-12-06-16-20-45-931.png
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        4. rasterwindow_smoothmasked.png
          rasterwindow_smoothmasked.png
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        5. rasterwindow.diff
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        6. shapedclock.diff
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        For Gerrit Dashboard: QTBUG-64229
        # Subject Branch Project Status CR V
        284086,3 Modernize shapedclock example 5.14 qt/qtbase Status: MERGED +2 0

            vestbo Tor Arne Vestbø
            andysh Andy Shaw
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              Created:
              Updated:
              Resolved:

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