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QGraphicsView picture quality Error.

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  • P Offline
    P Offline
    Pada_
    wrote on last edited by
    #1

    I am using Qt5.4 / Linux.

    I know I have QGraphicsTextItem in QGraphicsView, but I am using QTextEdit for the proxyWidget of QGraphicsItem for convenience.

    The item is normally created in GraphicsView, but is it a quality problem? There are times when the TextEdit Border is not working properly. If you move the position of the item, there are times when there is no other place, and sometimes it is all coming out normally. Or zoom out or disappear. This is not a problem with TextEdit alone. Items using other proxyWidgets are also the same symptom. Can you fix it?

    0_1557295441424_e2a7153e-8c05-4336-8a49-cc31a781843d-image.png

    When moving location

    0_1557295473641_77b7dd32-cbc4-4bc8-8865-77708425a9e7-image.png

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      Before trying to fix anything, you should build your application using a current version of Qt. 5.4 is really outdated and we are currently at 5.12 with 5.13 around the corner.

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      P 1 Reply Last reply
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      • SGaistS SGaist

        Hi,

        Before trying to fix anything, you should build your application using a current version of Qt. 5.4 is really outdated and we are currently at 5.12 with 5.13 around the corner.

        P Offline
        P Offline
        Pada_
        wrote on last edited by
        #3

        @SGaist

        Currently only 5.4 or 5.7 are available.

        The same phenomenon occurs in 5.7. When enlarged or moved, it is displayed normally on the screen again.

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Can you provide a minimal compilable example that shows that behaviour ?

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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