Qt Documentation

Contents

Positioner QML Type

Provides attached properties that contain details on where an item exists in a positioner. More...

Import Statement: import QtQuick 2.0

Attached Properties

Detailed Description

An object of type Positioner is attached to the top-level child item within a Column, Row, Flow or Grid. It provides properties that allow a child item to determine where it exists within the layout of its parent Column, Row, Flow or Grid.

For example, below is a Grid with 16 child rectangles, as created through a Repeater. Each Rectangle displays its index in the Grid using Positioner.index, and the first item is colored differently by taking Positioner.isFirstItem into account:

Grid {
    Repeater {
        model: 16

        Rectangle {
            id: rect
            width: 30; height: 30
            border.width: 1
            color: Positioner.isFirstItem ? "yellow" : "lightsteelblue"

            Text { text: rect.Positioner.index }
        }
    }
}

Attached Property Documentation

Positioner.isFirstItem : bool

Positioner.isLastItem : bool

These properties allow the item to determine if it is the first or last item in the positioner, respectively.


Positioner.index : int

This property allows the item to determine its index within the positioner.


© 2021 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.