Struct DrawRunNode 

pub struct DrawRunNode {
    pub phase: PrimitivePhase,
    pub command: Option<DrawCommandId>,
    pub recording: Rc<CommandRecording>,
    pub segments: Range<u32>,
    pub summary: DrawRunSummary,
}

A run of recorded draw primitives from one draw command, kept together as one node.

Fields

phase: PrimitivePhase

Whether the run draws before or after the children of its layer.

command: Option<DrawCommandId>

Which draw command recorded these primitives. None only for runs with no per-command provenance (hand-built tests).

recording: Rc<CommandRecording>

The recording registry keeps a handle per layout node and command, so this recording’s buffers survive the draw run being dropped and the command can record into them on a later update. Nothing mutates a recording after construction, which is what makes sharing sound.

segments: Range<u32>

The segments of the recording this run draws: one placement’s part of a with-content command, or the whole recording.

summary: DrawRunSummary

Content facts consumers keep asking per frame, answered while recording and never by rescanning.

Implementations

impl DrawRunNode

pub fn new(phase: PrimitivePhase, primitives: Vec<DrawPrimitive>) -> Self

Creates a run for primitives that has no draw command provenance.

pub fn for_command( phase: PrimitivePhase, command: Option<DrawCommandId>, primitives: Vec<DrawPrimitive>, ) -> Self

Creates a run for primitives recorded by the draw command command.

pub fn for_command_shared( phase: PrimitivePhase, command: Option<DrawCommandId>, recording: Rc<CommandRecording>, segments: Range<u32>, ) -> Self

Creates a run over segments of an existing shared recording, without copying it.

pub fn primitives(&self) -> impl Iterator<Item = DrawPrimitive> + '_

The run’s primitives, materialised from the recording in order.

pub fn coverage_rects(&self) -> impl Iterator<Item = Rect> + '_

The rect every entry of the run can reach.

pub fn len(&self) -> usize

Number of primitives in the run.

pub fn is_empty(&self) -> bool

Whether the run holds no primitives.

Trait Implementations

impl Clone for DrawRunNode

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DrawRunNode

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

Formats the value using the given formatter.

impl PartialEq for DrawRunNode

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for DrawRunNode