NumberAnimation can't refer to its parent SequentalAnimation

Stefan Monov76

My code:

import QtQuick 2.5
import QtQuick.Window 2.2

Window {
    visible: true
    width: 640
    height: 480
    property double angle: 0
    
    SequentialAnimation on angle {
        property int myDuration: 3000 // const
        NumberAnimation {
            from: -30.0
            to: 30.0
            duration: parent.myDuration
            easing.type: Easing.InOutSine
        }
    }
}

I get this error on the "parent.myDuration" line:

ReferenceError: parent is not defined

Any ideas?

kshegunov

Tried referencing by id?

? Offline

Hi! The parent property is the visual parent of the basic visual QML type Item and must not be confused with the parent QObject in a QObject tree. The Animation QML type is not derived from Item (because it has no visual representation) and thus does not have a visual parent / no parent property.

Stefan Monov76

@kshegunov :
Sure, that works, but I was wondering why it doesn't work with parent as well.

@Wieland :
Ok, thanks!