Enum Primitive 

pub enum Primitive {
    Fill {
        path: BezPath,
        paint: Paint,
    },
    Stroke {
        path: BezPath,
        paint: Paint,
        style: StrokeStyle,
    },
    Image {
        image: Rc<RasterImage>,
        rect: Rect,
        opacity: f64,
    },
    PushLayer(Layer),
    PopLayer,
    ReadFrame(Shade),
    BeginEffect(Shade),
    EndEffect,
}

A drawing operation in a DrawItem.

Variants

Fill

Non-zero winding fill.

Fields

path: BezPath

Outline to fill.

paint: Paint

Fill paint.

Stroke

Stroked outline.

Fields

path: BezPath

Outline to stroke.

paint: Paint

Stroke paint.

style: StrokeStyle

Width, caps, joins and dashes.

Image

A raster image.

Fields

image: Rc<RasterImage>

Decoded pixels.

rect: Rect

Destination rectangle in local coordinates.

opacity: f64

Image opacity, 0..=1.

PushLayer(Layer)

Starts a layer; items until the matching PopLayer go into it.

PopLayer

Ends the innermost layer and composites it.

ReadFrame(Shade)

A marker for a shader that reads the frame: the engine renders what comes before it, runs the shader on those pixels and draws the rest over the result. Renderers skip it.

BeginEffect(Shade)

A marker for a node whose own pixels a shader changes. Items up to the matching Primitive::EndEffect are drawn alone, shaded, and laid back over the frame. Renderers skip it.

EndEffect

Ends the node of the matching Primitive::BeginEffect.

Implementations

impl Primitive

pub fn is_marker(&self) -> bool

A marker that the engine handles instead of a renderer.

Trait Implementations

impl Clone for Primitive

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 Primitive

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

Formats the value using the given formatter.