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  1. Qt
  2. QTBUG-37046

QQuickWidget creates visual artifacts if combined with QML canvas

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    • 2df6031b5935fafcada04bc15b281c63bdbfabf9

    Description

      This is a subtask of QTBUG-36935

      Take the qquickwidget example and replace the QML with:

      import QtQuick 2.1

Canvas {
    objectName: "TimeDisplay"
    contextType: "2d"

    onPaint: {
        context.fillStyle = "green";
        context.fillRect(0, 0, width, height);
    }
}

      Then resize the quickwidget inside the MDI area. At certain sizes persistent visual artifacts appear. See the screenshot.

      Attachments

        1. artifact.png
          1 kB
          Ulf Hermann
        2. artifact2.png
          0.4 kB
          Ulf Hermann
        3. artifacts_without_canvas_from_QTCREATORBUG-12908.png
          2 kB
          Ulf Hermann

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          Epic - Created by Jira Software - do not edit or delete. Issue type for a big user story that needs to be broken down. QTBUG-36935 various problems when trying to use QQuickWidget in QML profiler

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
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              tvete Paul Olav Tvete
              ulherman Ulf Hermann
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                Updated:
                Resolved:

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