Struct conrod_core::render::Primitives

pub struct Primitives<'a> { /* fields omitted */ }

An iterator-like type that yields a reference to each primitive in order of depth for rendering.

This type is produced by the Ui::draw and Ui::draw_if_changed methods.

This type borrows data from the Ui in order to lazily produce each Primitive. If you require ownership over the sequence of primitives, consider using the OwnedPrimitives type. The OwnedPrimitives type can be produced by calling the Primitives::owned method.

Implementations

impl<'a> Primitives<'a>

pub fn new(
    graph: &'a Graph,
    depth_order: &'a [Id],
    theme: &'a Theme,
    fonts: &'a Map,
    window_dim: Dimensions
) -> Self

Constructor for the Primitives iterator.

pub fn next(&mut self) -> Option<Primitive>

Yield the next Primitive for rendering.

pub fn owned(self) -> OwnedPrimitives

Collect the Primitives list into an owned collection.

This is useful for sending Ui rendering data across threads in an efficient manner.

Trait Implementations

impl<'a> PrimitiveWalker for Primitives<'a>

fn next_primitive(&mut self) -> Option<Primitive>

Yield the next Primitive in order of depth, bottom to top.