Module padding 

Padding — a single-child layout container that adds insets around its child.

Padding shrink-wraps a child widget and enlarges it by configurable insets on each of the four sides. Horizontal insets are leading/trailing (logical), not left/right (physical), so they flip automatically in RTL locales. Each inset accepts a static f32 or a reactive Signal<f32>; a bound inset schedules a relayout whenever the signal fires, so theme-derived spacing values take effect without rebuilding the widget tree.

The grow weight, shrink weight, and compression floor reported by the child are forwarded through the padding so a flexible or shrinkable child inside a Padding stays flexible or shrinkable from the parent’s perspective.

When to use

• Adding whitespace around a widget without wrapping it in a stack.
• Applying asymmetric insets (e.g. extra leading inset for a list item).
• Reacting to a Signal-driven spacing token.

Use Padding::uniform when all four sides are equal, and Padding::symmetric when horizontal and vertical insets differ.

// 12 dp padding on every side:
let _w = Padding::uniform(12.0)
    .child(TextWidget::new(lit!("Hello")));

Structs

Padding

A layout container that adds padding (insets) around a single child.