Module box_tree 

Box tree — the intermediate representation between a JSON scenario and the layout/paint passes. Each node carries a resolved CssStyle, a discriminator pointing to the source component, and an optional intrinsic measurement callback (text, image, codeblock, chart, …).

Structs

BoxNode

A renderable box. kind is opaque to the engine; the painter dispatch downcasts the inner Arc<dyn Any> to the concrete component type when invoked.

PaintWindow

Half-open visibility window [start, end); None bounds are unbounded.

Enums

AvailableSpace

CSS available-space hint, mirrored from taffy.

BoxKind

Discriminates the source component without coupling the engine to its concrete types.

Traits

IntrinsicMeasure

Trait implemented by leaves whose intrinsic size depends on their content. Called by taffy during layout.

Type Aliases

NodeId

Stable identifier for a node within a single layout pass.