Struct Container 

pub struct Container {
    pub transform: Transform,
    pub alpha: f32,
    pub visible: bool,
    pub blend_mode: BlendMode,
    pub clip: Option<MaskShape>,
    pub(crate) children: Vec<NodeId>,
    pub(crate) parent: Option<NodeId>,
}

Scene-graph container.

Holds child node IDs and the per-node transform/alpha/visibility/blend state. parent is None for orphans and for the stage root.

Fields

transform: Transform

Local affine transform.

alpha: f32

Alpha multiplier in [0.0, 1.0]. Multiplied with parent alpha at render.

visible: bool

Skip rendering when false. Children are also skipped.

blend_mode: BlendMode

Blend mode used when compositing this node’s output over its target.

clip: Option<MaskShape>

Optional mask region (M-MASK.1). When Some, the container’s rendered subtree is clipped to the shape: pixels outside the mask have their alpha zeroed before being composited onto the parent. The renderer routes clipped containers through an offscreen pass — see crate::render::clip.

children: Vec<NodeId>

parent: Option<NodeId>

Implementations

impl Container

pub fn new() -> Self

Construct a default container — identity transform, full alpha, visible, normal blend.

pub fn children( &self, ) -> impl DoubleEndedIterator<Item = NodeId> + ExactSizeIterator + '_

Iterate child node IDs in insertion order.

pub fn child_count(&self) -> usize

Number of direct children.

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

Parent node ID, if any.

Trait Implementations

impl Clone for Container

fn clone(&self) -> Container

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Container

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

Formats the value using the given formatter.

impl Default for Container

fn default() -> Self

Returns the “default value” for a type.

impl From<Container> for Node

fn from(c: Container) -> Self

Converts to this type from the input type.