Работа с MultiPointTouchArea (drag n drop + zoom)

Привет , подскажите кто-нибудь , как сделать драг н дроп , не нарушая при этом логику работы зума?

import QtQuick 2.6 
import QtGraphicalEffects 1.0 

Page {
    id:win
    property string filepath
//    width:parent.width * 0.5
//    height:parent.height * 0.5

    MultiPointTouchArea {
        id: multiPoint
        anchors.fill: parent
        maximumTouchPoints : 2
        minimumTouchPoints : 1
        touchPoints: [
            TouchPoint { id: point1 },
            TouchPoint { id: point2 }
        ]
        property real factor: 1
        property bool isReleased: false // ignore the TouchUpdate after released
        onTouchUpdated: {
            console.log("touch upd")
            if(isReleased){
                isReleased = false
                return
            }
            if(point1.x != 0 && point2.x != 0){
                var s = Math.sqrt(Math.pow(point1.x - point2.x, 2) + Math.pow(point1.y - point2.y, 2)) /
                        Math.sqrt(Math.pow(point1.startX - point2.startX, 2) + Math.pow(point1.startY - point2.startY, 2))
                rect.scale = s * factor
            } else {
                rect.beginDrag = Qt.point(rect.x, rect.y) ?????????
            }
        } 
        onReleased: {
            console.log("realesed upd")
            multiPoint.factor = rect.scale
            isReleased = true
        }
        Rectangle {
            id: rect
            width: Screen.width
            height: Screen.height
            z: mouseArea.drag.active ||  mouseArea.pressed ? 2 : 1
            x: 0 //Math.random() * (win.width / 2 - 100)
            y: 0 
            property point beginDrag
            color : "transparent"
            border { width:2; color: "transparent" }
            radius: 5
            Drag.active: mouseArea.drag.active
            Image {
                id: image
                width: rect.width
                height: rect.height
                anchors.centerIn: parent
                fillMode: Image.PreserveAspectFit
                source: filepath 
            }
//            MouseArea {
//                id: mouseArea

//                anchors.fill: image
//                drag.target: rect
//                enabled:multiPoint.isReleased
//                visible: multiPoint.isReleased
//                onPressed: {
//                    console.log("mouse pressed + state: " + isReleased)
//                        rect.beginDrag = Qt.point(rect.x, rect.y)
//                }
//            }
        }
    }
}