Struct Scene 

pub struct Scene { /* private fields */ }

An ordered display list. Reused between frames to avoid reallocating.

Implementations

impl Scene

pub fn new() -> Self

Creates an empty display list with a transparent clear color.

pub fn clear(&mut self)

Empties the list but keeps its allocation.

pub fn set_clear_color(&mut self, color: Color)

Sets the color the frame is cleared to before drawing.

pub fn clear_color(&self) -> Color

Color the frame is cleared to before drawing.

pub fn push_path(&mut self, path: PathFill)

Appends a shape made of curves.

pub fn push_quad(&mut self, quad: Quad)

Appends a rounded rectangle.

pub fn push_glyphs(&mut self, run: GlyphRun)

Appends a glyph run; empty runs are skipped.

pub fn push_image(&mut self, image: ImageQuad)

Appends an image.

pub fn push_clip(&mut self, rect: Rect)

Clips subsequent primitives to rect (intersected with the current clip) until Scene::pop_clip.

pub fn pop_clip(&mut self)

Ends the clip started by the matching Scene::push_clip.

pub fn apply_effect( &mut self, range: Range<usize>, effect: Effect, pivot: Point, )

Applies effect to a range of primitives, scaling around pivot.

use ravenrs_core::{Color, Effect, Point, Primitive, Quad, Rect, Scene};

let mut scene = Scene::new();
scene.push_quad(Quad::new(Rect::new(0.0, 0.0, 10.0, 10.0), Color::WHITE));
scene.apply_effect(0..1, Effect::moved(5.0, 0.0), Point::ZERO);
let Primitive::Quad(q) = &scene.primitives()[0] else { unreachable!() };
assert_eq!(q.rect.x(), 5.0);

pub fn extend_from_slice(&mut self, primitives: &[Primitive])

Appends primitives recorded earlier.

pub fn primitives(&self) -> &[Primitive]

All primitives in painter’s order.

pub fn len(&self) -> usize

Number of primitives.

pub fn is_empty(&self) -> bool

Returns true when no primitives have been pushed.

Trait Implementations

impl Clone for Scene

fn clone(&self) -> Scene

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Scene

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

Formats the value using the given formatter.

impl Default for Scene

fn default() -> Scene

Returns the “default value” for a type.

impl Scratch for Scene

Available on crate feature live only.

A closure of the playground draws into a scene of its own, which is then added to the real one, as a &mut Scene cannot leave the paint.

fn fresh() -> Self

An empty one.

fn merge_into(self, target: &mut Self)

Adds what was done to it to the real one.