qt-everywhere-src-5.15.1/qtquickcontrols/src/extras/Styles/Flat/StatusIndicatorStyle.qml

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import QtQuick 2.3
import QtQuick.Controls 1.4
import QtQuick.Controls.Private 1.0
import QtQuick.Controls.Styles 1.4 as Base
import QtQuick.Controls.Styles.Flat 1.0
import QtQuick.Extras.Private 1.0
import QtQuick.Extras.Private.CppUtils 1.0

Base.StatusIndicatorStyle {
    color: FlatStyle.focusedTextColor

    indicator: Item {
        implicitWidth: Math.max(12, MathUtils.roundEven(12 * FlatStyle.scaleFactor))
        implicitHeight: MathUtils.roundEven(implicitWidth / 2)

        Rectangle {
            // Math.max because the control could be manually resized to be too small.
            width: Math.max(12, MathUtils.roundEven(parent.width))
            height: MathUtils.roundEven(width / 2)
            radius: Math.max(2, height * 0.2)
            anchors.centerIn: parent
            color: !control.enabled || !control.active ? FlatStyle.disabledColor : control.color
            opacity: control.enabled ? (control.active ? 1 : 0.3) : (control.active ? FlatStyle.disabledOpacity : 0.15)
        }
    }
}