Trait Renderer

pub trait Renderer {
    // Required methods
    fn start_layer(&mut self, bounds: Rectangle);
    fn end_layer(&mut self);
    fn start_transformation(&mut self, transformation: Transformation);
    fn end_transformation(&mut self);
    fn fill_quad(&mut self, quad: Quad, background: impl Into<Background>);
    fn clear(&mut self);

    // Provided methods
    fn with_layer(&mut self, bounds: Rectangle, f: impl FnOnce(&mut Self)) { ... }
    fn with_transformation(
        &mut self,
        transformation: Transformation,
        f: impl FnOnce(&mut Self),
    ) { ... }
    fn with_translation(
        &mut self,
        translation: Vector,
        f: impl FnOnce(&mut Self),
    ) { ... }
}

A component that can be used by widgets to draw themselves on a screen.

Required Methods

fn start_layer(&mut self, bounds: Rectangle)

Starts recording a new layer.

fn end_layer(&mut self)

Ends recording a new layer.

The new layer will clip its contents to the provided bounds.

fn start_transformation(&mut self, transformation: Transformation)

Starts recording with a new Transformation.

fn end_transformation(&mut self)

Ends recording a new layer.

The new layer will clip its contents to the provided bounds.

fn fill_quad(&mut self, quad: Quad, background: impl Into<Background>)

Fills a Quad with the provided Background.

fn clear(&mut self)

Clears all of the recorded primitives in the Renderer.

Provided Methods

fn with_layer(&mut self, bounds: Rectangle, f: impl FnOnce(&mut Self))

Draws the primitives recorded in the given closure in a new layer.

The layer will clip its contents to the provided bounds.

fn with_transformation( &mut self, transformation: Transformation, f: impl FnOnce(&mut Self), )

Applies a Transformation to the primitives recorded in the given closure.

fn with_translation(&mut self, translation: Vector, f: impl FnOnce(&mut Self))

Applies a translation to the primitives recorded in the given closure.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl Renderer for ()

fn start_layer(&mut self, _bounds: Rectangle)

fn end_layer(&mut self)

fn start_transformation(&mut self, _transformation: Transformation)

fn end_transformation(&mut self)

fn clear(&mut self)

fn fill_quad(&mut self, _quad: Quad, _background: impl Into<Background>)

impl Renderer for Renderer

fn start_layer(&mut self, bounds: Rectangle)

fn end_layer(&mut self)

fn start_transformation(&mut self, transformation: Transformation)

fn end_transformation(&mut self)

fn fill_quad(&mut self, quad: Quad, background: impl Into<Background>)

fn clear(&mut self)

Implementors

impl<A, B> Renderer for cosmic::iced_widget::renderer::fallback::Renderer<A, B>

where A: Renderer, B: Renderer,