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import QtQuick 2.9
import QtQuick.Shapes 1.0

Rectangle {
    color: "lightGray"

    Item {
        width: 200
        height: 200
        anchors.centerIn: parent

        Shape {
            id: shape
            anchors.fill: parent

            ShapePath {
                strokeWidth: 4
                strokeColor: "black"
                fillColor: "lightBlue"

                startX: 50; startY: 100
                PathCubic {
                    x: 150; y: 100
                    control1X: cp1.x; control1Y: cp1.y
                    control2X: cp2.x; control2Y: cp2.y
                }
            }
        }

        Rectangle {
            id: cp1
            color: "red"
            width: 10; height: 10
            SequentialAnimation {
                loops: Animation.Infinite
                running: true
                NumberAnimation {
                    target: cp1
                    property: "x"
                    from: 0
                    to: shape.width - cp1.width
                    duration: 5000
                }
                NumberAnimation {
                    target: cp1
                    property: "x"
                    from: shape.width - cp1.width
                    to: 0
                    duration: 5000
                }
                NumberAnimation {
                    target: cp1
                    property: "y"
                    from: 0
                    to: shape.height - cp1.height
                    duration: 5000
                }
                NumberAnimation {
                    target: cp1
                    property: "y"
                    from: shape.height - cp1.height
                    to: 0
                    duration: 5000
                }
            }
        }

        Rectangle {
            id: cp2
            color: "blue"
            width: 10; height: 10
            x: shape.width - width
            SequentialAnimation {
                loops: Animation.Infinite
                running: true
                NumberAnimation {
                    target: cp2
                    property: "y"
                    from: 0
                    to: shape.height - cp2.height
                    duration: 5000
                }
                NumberAnimation {
                    target: cp2
                    property: "y"
                    from: shape.height - cp2.height
                    to: 0
                    duration: 5000
                }
                NumberAnimation {
                    target: cp2
                    property: "x"
                    from: shape.width - cp2.width
                    to: 0
                    duration: 5000
                }
                NumberAnimation {
                    target: cp2
                    property: "x"
                    from: 0
                    to: shape.width - cp2.width
                    duration: 5000
                }
            }
        }
    }
}