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  1. Qt
  2. QTBUG-76214

[Reg 5.9.8->5.12.3] QLabels are painting badly inside tabbed QMdiArea

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    • macOS
    • cfd2cc91fdae40d8e1eddfc2f9ff2585a0b708e4 (qt/qtbase/5.12)

      The QLabels are not painting correctly inside a QMdiArea that is in tabbed mode.
      This started happening after we upgraded from Qt 5.9.8 to Qt 5.12.3.

      It looks like the background is not painting for the QLabel when it is inside of a tabbed QMdiArea. When the QMdiArea is tiled, the background is painting correctly. Issue is not seen on Windows.

      Please find the attached sample and snapshots for the issue.

        1. Qt-5.12.3.png
          Qt-5.12.3.png
          105 kB
        2. Qt-5.9.8.png
          Qt-5.9.8.png
          98 kB
        3. qtbug76214.zip
          3 kB
        For Gerrit Dashboard: QTBUG-76214
        # Subject Branch Project Status CR V
        265814,3 Always fill the background of a tabbed QMdiSubWindow 5.12 qt/qtbase Status: MERGED +2 0

            vhilshei Volker Hilsheimer
            shmittal Shveta Mittal
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              Created:
              Updated:
              Resolved:

                There are no open Gerrit changes