Struct OverlayLayout 

pub struct OverlayLayout {
    pub align: Alignment,
    pub size_to_first: bool,
}

Z-layering (§overlay): children share the container bounds, stacked back-to-front in child order (first child = bottom of the z-order), each positioned by a single Alignment. size_to_first reports only the FIRST child’s natural size — the badge/annotation sizing of overlay (the annotation does not grow the frame); otherwise the layout reports the UNION (max) of all children’s natural sizes — the ZStack sizing of zstack. No native work: the container is the same panel as column/row, so backends stack children by attach order.

Fields

align: Alignment

size_to_first: bool

Trait Implementations

impl Layout for OverlayLayout

fn measure( &self, cx: &mut dyn LayoutOps, children: &[RNode], p: Proposal, ) -> Size

fn place(&self, cx: &mut dyn LayoutOps, children: &[RNode], bounds: Rect)