Struct ComponentTree

pub struct ComponentTree { /* private fields */ }

Respents a component tree

Implementations

impl ComponentTree

pub fn new() -> Self

Create a new ComponentTree

pub fn clear(&mut self)

Clear the component tree

pub fn get(&self, node_id: NodeId) -> Option<&ComponentNode>

Get node by NodeId

pub fn get_mut(&mut self, node_id: NodeId) -> Option<&mut ComponentNode>

Get mutable node by NodeId

pub fn current_node(&self) -> Option<&ComponentNode>

Get current node

pub fn current_node_mut(&mut self) -> Option<&mut ComponentNode>

Get mutable current node

pub fn add_node(&mut self, node_component: ComponentNode)

Add a new node to the tree Nodes now store their intrinsic constraints in their metadata. The node_component itself primarily holds the measure_fn.

pub fn pop_node(&mut self)

Pop the last node from the queue

pub fn compute( &mut self, screen_size: PxSize, cursor_position: Option<PxPosition>, cursor_events: Vec<CursorEvent>, keyboard_events: Vec<KeyEvent>, ime_events: Vec<Ime>, modifiers: ModifiersState, compute_resource_manager: Arc<RwLock<ComputeResourceManager>>, gpu: &Device, clipboard: &mut Clipboard, ) -> (Vec<(Command, PxSize, PxPosition)>, WindowRequests)

Compute the ComponentTree into a list of rendering commands

This method processes the component tree through three main phases:

1. Measure Phase: Calculate sizes and positions for all components
2. Command Generation: Extract draw commands from component metadata
3. State Handling: Process user interactions and events

Returns a tuple of (commands, window_requests) where commands contain the rendering instructions with their associated sizes and positions.

Trait Implementations

impl Default for ComponentTree

fn default() -> Self

Returns the “default value” for a type.