Cockpit-cpp/ZjQt/Run/QtQuick/Controls/Fusion/Dial.qml

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import QtQuick
import QtQuick.Templates as T
import QtQuick.Controls.impl
import QtQuick.Controls.Fusion
import QtQuick.Controls.Fusion.impl

T.Dial {
    id: control

    implicitWidth: Math.max(implicitBackgroundWidth + leftInset + rightInset,
                            implicitContentWidth + leftPadding + rightPadding)
    implicitHeight: Math.max(implicitBackgroundHeight + topInset + bottomInset,
                             implicitContentHeight + topPadding + bottomPadding)

    background: DialImpl {
        implicitWidth: 100
        implicitHeight: 100
        highlight: control.visualFocus
    }

    handle: KnobImpl {
        x: control.background.x + control.background.width / 2 - width / 2
        y: control.background.y + control.background.height / 2 - height / 2
        width: control.width / 7
        height: control.height / 7
        transform: [
            Translate {
                y: -Math.min(control.background.width, control.background.height) * 0.42 + control.handle.height
            },
            Rotation {
                angle: control.angle
                origin.x: control.handle.width / 2
                origin.y: control.handle.height / 2
            }
        ]
    }
}