Positioner QML Type

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

Import Statement: import QtQuick 2.15

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.