Struct BoxTree 

pub struct BoxTree { /* private fields */ }

The box tree — arena-allocated tree of layout boxes.

Implementations

impl BoxTree

pub fn new() -> Self

pub fn add_node(&mut self, kind: NodeKind, style: ComputedStyle) -> NodeId

Add a new node to the tree. Returns the node’s ID.

pub fn set_root(&mut self, id: NodeId)

Set the root node.

pub fn append_child(&mut self, parent: NodeId, child: NodeId)

Append a child to a parent node.

pub fn node(&self, id: NodeId) -> &BoxTreeNode

Get a reference to a node.

pub fn node_mut(&mut self, id: NodeId) -> &mut BoxTreeNode

Get a mutable reference to a node.

pub fn root(&self) -> NodeId

Get the root node ID.

pub fn children(&self, id: NodeId) -> &[NodeId]

Get the children of a node.

pub fn style(&self, id: NodeId) -> &ComputedStyle

Get the style of a node.

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

Get the parent of a node.

pub fn len(&self) -> usize

Total number of nodes.

pub fn is_empty(&self) -> bool

pub fn formatting_context(&self, id: NodeId) -> FormattingContextType

Determine the formatting context for a node’s children.

Trait Implementations

impl Clone for BoxTree

fn clone(&self) -> BoxTree

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BoxTree

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for BoxTree

fn default() -> Self

Returns the “default value” for a type.