Cranpose UI Layout

cranpose-ui-layout defines measurement, placement, alignment and arrangement contracts for Cranpose widgets. Custom layout authors use Constraints, Measurable, MeasureScope and Placeable. App developers usually use Column, Row, Box and Layout from cranpose.

Adjust child constraints

Constraints use logical pixels. A custom measure policy can deflate parent bounds before a child measure call:

use cranpose_ui_layout::Constraints;

let parent = Constraints::loose(320.0, 480.0);
let child = parent.deflate(16.0, 12.0);
let (width, height) = child.constrain(400.0, 40.0);
assert_eq!((width, height), (304.0, 40.0));

The feature set is empty. See the Constraints API, the layout guide and the crate source.