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  1. Qt
  2. QTBUG-39907

QGraphicsProxyWidget rendering errors (regression from Qt 4)

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Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 5.3.0, 5.7.0
    • Widgets: GraphicsView
    • None
    • Mac OS 10.9, retina display.
    • macOS

    Description

      I'm seeing multiple graphical glitches using a QGraphicsProxyWidget on a high-DPI screen in Qt 5.3. One easily-reproduced example: when embedding a QLineEdit, the cursor blink causes an entire character to be cleared and not properly redrawn.

      Reverting to Qt 4.8 causes these issues to go away, although then QTBUG-39206 occurs.

      Attached is a minimal sample program and a screencap gif showing the issue.

      Attachments

        1. main.cpp
          0.4 kB
        2. proxy.gif
          proxy.gif
          62 kB
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            Unassigned Unassigned
            mkeeter Matthew Keeter
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            Dates

              Created:
              Updated:

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