QML Types from C++ terrible things: singletons, lists and constants

[morte]

1. Singletons with lists. If there is QML type with QQmlListProperty eg. MyType registered as qmlRegisterSingletonType<MyType>("org.examples", 1, 0, "MyType") which has QmlListProperty<MyListElement> - myList. What syntax i should use at QML side to assign something to MyType.myList?

Syntax like that don't works:

MyType.myList = [
  MyListElement {
    id: elem1
  } 
]

It works that way (Qt.createQmlComponent also can be used):

Component.onCompleted: {
    var o = Qt.createQmlObject('import org.examples 1.0; MyListElement {}')
    MyType.myList.push(o);
}

But there is no acess to MyListElements by their id's.

2. Constants: i see no way how to define QML type (non-singleton or singleton) at C++ side with constant properties that should be initialized at QML side when creating object

[GrecKo]

I believe that should work for singletons with QQmlListProperty:

Binding {
    target: MyType
    property: "myList"
    value: [
      MyListElement {
        id: elem1
      } 
    ]
}

[morte]

@GrecKo no, that don't works: qrc:/main.qml:25 Cannot assign multiple values to a singular property