Struct Placeable 

pub struct Placeable { /* private fields */ }

Result of running a measurement pass for a single child.

Concrete struct replacing the former dyn Placeable trait object. This avoids a heap allocation per node per measure pass — the hot coordinator path (16-byte value) now lives entirely on the stack.

Implementations

impl Placeable

pub fn value(width: f32, height: f32, node_id: usize) -> Placeable

Creates a pure-value placeable with no side effects on place().

pub fn value_with_offset( width: f32, height: f32, node_id: usize, content_offset: (f32, f32), ) -> Placeable

Creates a pure-value placeable with a content offset.

pub fn with_place_fn( width: f32, height: f32, node_id: usize, place_fn: Rc<dyn Fn(f32, f32)>, ) -> Placeable

Creates a node-backed placeable whose place() triggers a side effect.

pub fn place(&self, x: f32, y: f32)

Places the child at the provided coordinates relative to its parent.

pub fn width(&self) -> f32

Returns the measured width of the child.

pub fn height(&self) -> f32

Returns the measured height of the child.

pub fn node_id(&self) -> usize

Returns the identifier for the underlying layout node.

pub fn content_offset(&self) -> (f32, f32)

Returns the accumulated content offset from the coordinator chain.