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  1. Qt
  2. QTBUG-77119

Painter is messing up the text and rounded rectangle drawing (MSVC2019/release)

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    • Windows
    • 70e7445dbeba9bd24de963e7e431c4698b6b4569 (qt/qtbase/5.12)

      I have recently stumbled upon a few bugs in Qt 5.12.4 release builds only. In debug build, it works as expected. Attached the source code to reproduce the problems.

      Problem 1:
      I have a QTestWidget which is trying to custom paint some text on the screen but the painting is somehow messed up.

      Problem 2:
      Another problem is if I create a QPainterPath with a addRoundedRect() it is not painted properly. Although addRect() works fine.

      The same code does use to work fine in Qt 5.6.0 both in debug and release.

       

        1. qtbugs.mp4
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          Khushwant Singh
        2. bugs.zip
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          Khushwant Singh
        3. qtbug77119.zip
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          Andy Shaw
        4. qtbug77119.jpg
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          Friedemann Kleint
        For Gerrit Dashboard: QTBUG-77119
        # Subject Branch Project Status CR V
        269007,10 Simplify QBezier::addPolygon() implementation 5.12 qt/qtbase Status: MERGED +2 0
        271495,1 QBezier: Work around code generation problem in MSVC 2019 5.12 qt/qtbase Status: ABANDONED 0 0

            vgt Eirik Aavitsland
            singh Khushwant Singh
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              Created:
              Updated:
              Resolved:

                There are no open Gerrit changes