Struct LayerNode 

pub struct LayerNode {

    pub node_id: Option<NodeId>,
    pub wraps: Option<NodeId>,
    pub local_bounds: Rect,
    pub transform_to_parent: ProjectiveTransform,
    pub content_offset: Point,
    pub motion_context_animated: bool,
    pub translated_content_context: bool,
    pub translated_content_offset: Point,
    pub scene_children_origin: Point,
    pub scene_children_layer_translation: Point,
    pub graphics_layer: GraphicsLayer,
    pub clip_to_bounds: bool,
    pub shadow_clip: Option<Rect>,
    pub hit_test: Option<HitTestNode>,
    pub has_hit_targets: bool,
    pub has_origin_sinks: bool,
    pub isolation: IsolationReasons,
    pub cache_policy: CachePolicy,
    pub cache_hashes: LayerRasterCacheHashes,
    pub cache_hashes_valid: bool,
    pub children: Vec<RenderNode>,
}

Fields

node_id: Option<NodeId>

wraps: Option<NodeId>

Set on the synthetic layer that holds a node’s outer draws, those chained before its graphics layer, around that node’s own layer. Scene updates address the node through this id because the node’s layer has none of the outer draws and the wrapper has no node id of its own.

local_bounds: Rect

transform_to_parent: ProjectiveTransform

content_offset: Point

motion_context_animated: bool

translated_content_context: bool

translated_content_offset: Point

scene_children_origin: Point

Window-space origin this layer’s children are placed from, and the accumulated ancestor graphics-layer translation, captured during the full per-frame scene build. Read back when a dirty subtree is rebuilt in isolation (update_scene_from_applier) so a scrolling field’s window origin stays live during a fling even though the ancestor chain is not re-walked from the root. Defaults to the identity origin.

scene_children_layer_translation: Point

graphics_layer: GraphicsLayer

clip_to_bounds: bool

shadow_clip: Option<Rect>

hit_test: Option<HitTestNode>

has_hit_targets: bool

has_origin_sinks: bool

Whether this subtree publishes live window origins (a text field’s popup anchor, a scroll container’s viewport rect). Those sinks are written during a full lowering, so the scroll fast path may translate a retained subtree in place only when this is false.

isolation: IsolationReasons

cache_policy: CachePolicy

cache_hashes: LayerRasterCacheHashes

cache_hashes_valid: bool

children: Vec<RenderNode>

Implementations

impl LayerNode

pub fn clip_rect(&self) -> Option<Rect>

pub fn effect(&self) -> Option<&RenderEffect>

pub fn backdrop(&self) -> Option<&RenderEffect>

pub fn opacity(&self) -> f32

pub fn blend_mode(&self) -> BlendMode

pub fn color_filter(&self) -> Option<ColorFilter>

pub fn target_content_hash(&self) -> u64

pub fn motion_source_content_hash(&self) -> u64

pub fn effect_hash(&self) -> u64

pub fn recompute_raster_cache_hashes(&mut self)

Trait Implementations

impl Clone for LayerNode

fn clone(&self) -> LayerNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for LayerNode

fn default() -> Self

Returns the “default value” for a type.