Delegate.qml Example File

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import QtQuick 2.0

Package {
    Text { id: listDelegate; width: parent.width; height: 25; text: 'Empty'; Package.name: 'list' }
    Text { id: gridDelegate; width: parent.width / 2; height: 50; text: 'Empty'; Package.name: 'grid' }

    Rectangle {
        id: wrapper
        width: parent.width; height: 25
        color: 'lightsteelblue'

        Text { text: display; anchors.centerIn: parent }
        state: root.upTo > index ? 'inGrid' : 'inList'
        states: [
            State {
                name: 'inList'
                ParentChange { target: wrapper; parent: listDelegate }
            },
            State {
                name: 'inGrid'
                ParentChange {
                    target: wrapper; parent: gridDelegate
                    x: 0; y: 0; width: gridDelegate.width; height: gridDelegate.height
                }
            }
        ]

        transitions: [
            Transition {
                ParentAnimation {
                    NumberAnimation { properties: 'x,y,width,height'; duration: 300 }
                }
            }
        ]
    }
}