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  1. Qt
  2. QTBUG-27053

Filling polygon issue when anti-aliasing is off

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Details

    • Bug
    • Resolution: Done
    • P3: Somewhat important
    • 5.9.2
    • 4.8.0, 4.8.1, 4.8.2, 4.8.3, 5.9.0
    • GUI: Painting
    • None
    • 853ef83dfa6f07354276266816ff766bd8a16233

    Description

      Painted squares and diamonds are not filled properly with Qt 4.8 when anti-aliasing is off. With Qt 4.7.4 everything works fine. Please see the attached screenshot to see the difference.

      This bug can be reproduced with the attached example project.

      After bisecting, it seems that

      • f8e85838c5531b56c2175cbdb9c24db426f7fd89 is the first bad commit for the squares.
      • 37c329a3e35fabc88fbcad824a69f37c671d2132 is the first bad commit for the diamonds.

      Attachments

        1. mywidgetv2.zip
          1 kB
        2. mywidgetv3.tar.gz
          2 kB
        3. mywidgetv3.zip
          2 kB
        4. polygon_issue.png
          polygon_issue.png
          8 kB
        5. polygon_issue2.jpg
          polygon_issue2.jpg
          19 kB
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          People

            allan.jensen Allan Sandfeld Jensen
            qtcomsupport Qt Support
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            Dates

              Created:
              Updated:
              Resolved:

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