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  1. Qt
  2. QTBUG-118460

Overlay.rotation gets discarded when window is resized

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    • d51847e32 (dev), 8e9bd27e2 (6.6)

      Code

      import QtQuick 2.15
import QtQuick.Window 2.15
import QtQuick.Controls 2.15

Window {
    id: window
    width: 640
    height: 480
    visible: true
    Overlay.overlay.rotation: slider.value

    Column {
        Slider {
            id: slider
            from: 0
            to: 360
        }
        Text { text: `Rotation: ${slider.value.toFixed(1)}°` }
    }

    Popup {
        id: popup
        anchors.centerIn: parent
        width: 320
        height: 240
        modal: false
        closePolicy: Popup.NoAutoClose

        Text {
            anchors.centerIn: parent
            text: "Hello"
        }
    }
    Component.onCompleted: popup.open()
}

       

      Steps to reproduce

      1. Run the code above
      2. Move the slider to a value that is not 0° or 360°
      3. Resize the window
      4. Repeat Steps #2 and #3 multiple times, using different slider values

       

      Expected Outcome
      At Step #3, the Popup's rotation remains unchanged (== slider.value)

       

      Actual Outcome
      At Step #3, the Popup's rotation resets to 0

       

      Workaround
      Instead of binding Overlay.overlay.rotation: slider.value, use a Transform:

      Overlay.overlay.transform: Rotation {
    angle: slider.value
    origin.x: window.Overlay.overlay.width / 2
    origin.y: window.Overlay.overlay.height / 2
}

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            vhilshei Volker Hilsheimer
            skoh-qt Sze Howe Koh
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              Created:
              Updated:
              Resolved:

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