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  1. Qt
  2. QTBUG-25896

Bad line drawing since Qt 4.8.0

    XMLWordPrintable

Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 4.8.0, 4.8.1, 4.8.2, 5.8
    • GUI: Painting
    • None
    • Windows 7, Visual C++ 2008.

    Description

      I am drawing lines using qreal dimensions. My code was working fine on Qt 4.7.2, but when I switched to Qt 4.8.0 it looks... well... ugly. It affects Windows and Linux, but setting graphics system on Linux to native fixes the problem. On Windows there's no change.

      Attachments

        1. line-bug-qt5.11.tar.gz
          1 kB
          Emanuel Eichhammer
        2. mywidgetv3.tar.gz
          2 kB
          Samuel Rødal
        3. print_preview.png
          4 kB
          Witek Tyszkowski
        4. qt_47_3x.png
          3 kB
          Witek Tyszkowski
        5. qt_47.PNG
          1 kB
          Witek Tyszkowski
        6. qt_47.PNG
          1 kB
          Witek Tyszkowski
        7. qt_474_correct.png
          0.5 kB
          Witek Tyszkowski
        8. qt_48_3x.png
          3 kB
          Witek Tyszkowski
        9. qt_48.PNG
          1 kB
          Witek Tyszkowski
        10. qt_48.PNG
          2 kB
          Witek Tyszkowski
        11. qt4-pen-behavior.png
          35 kB
          Samuel Rødal
        12. qt5-pen-behavior.png
          27 kB
          Alexander Volkov
        13. qtbug25896.zip
          3 kB
          Alexander Volkov
        For Gerrit Dashboard: QTBUG-25896
        # Subject Branch Project Status CR V
        200383,3 Reimplement non-antialiased cosmetic pen dev qt/qtbase Status: MERGED +2 0

        Activity

          People

            vgt Eirik Aavitsland
            witekt Witek Tyszkowski
            Votes:
            22 Vote for this issue
            Watchers:
            33 Start watching this issue

            Dates

              Created:
              Updated:

              Gerrit Reviews

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