Positioner QML Type

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

Import Statement:

import QtQuick 2.12

• List of all members, including inherited members

Attached Properties

• index : int
• isFirstItem : bool
• isLastItem : bool

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.index : int

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

Positioner.isFirstItem : bool

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

Positioner.isLastItem : bool

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