Struct BoxNode 

pub struct BoxNode {
    pub id: NodeId,
    pub kind: BoxKind,
    pub css: CssStyle,
    pub children: Vec<BoxNode>,
    pub intrinsic: Option<Arc<dyn IntrinsicMeasure>>,
    pub source_path: Option<String>,
    pub window: Option<PaintWindow>,
}

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.

Fields

id: NodeId

kind: BoxKind

css: CssStyle

children: Vec<BoxNode>

intrinsic: Option<Arc<dyn IntrinsicMeasure>>

Optional intrinsic measurement (used by taffy’s measure_fn for leaves like text / codeblock / image). None = pure container.

source_path: Option<String>

JSON path of this node relative to its scene’s children array, e.g. “/children/2/children/0”. None for synthetic nodes (the scene root).

window: Option<PaintWindow>

Visibility window from the component’s start_at/end_at (seconds, scene-relative). Outside the window the node and its subtree are not painted but still occupy layout space (CSS visibility semantics — siblings must not jump when the component appears).

Implementations

impl BoxNode

pub fn container(css: CssStyle, children: Vec<BoxNode>) -> Self

pub fn leaf(css: CssStyle, intrinsic: Arc<dyn IntrinsicMeasure>) -> Self

pub fn assign_ids(&mut self, next: NodeId) -> NodeId

Walk the tree and assign sequential id values to each node. Returns the next free id.

pub fn find(&self, id: NodeId) -> Option<&BoxNode>

Find a node by id.