import QtQuick 2.12
import QtQuick.Controls 2.12
import QtQuick.Shapes 1.15

ApplicationWindow {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")
    Timer {
        id: worker;
        interval: Math.random() * 2000
        onTriggered: {
            rotationAnimation.stop();
        }
    }

    Rectangle {
        width: 200
        height: 200
        anchors.centerIn: parent
        Button {
            anchors.fill: parent
            id: button
            icon.source: "https://image.flaticon.com/icons/svg/860/860822.svg"
            icon.width: parent.width*0.9
            icon.height: parent.height*0.9
            background: Rectangle {
                color: "transparent"
            }
            RotationAnimator {
                id: rotationAnimation
                target: button;
                from: 0;
                to: -360;
                duration: 500
                // infinite run - alwaysRunToEnd: true
                loops: Animation.Infinite
            }
            onClicked: {
                rotationAnimation.start();
                worker.start()
            }
        }
    }
}