Trait Canvas 

pub trait Canvas {
    // Required methods
    fn fill_rect(&mut self, rect: Rect, color: Color);
    fn stroke_rect(&mut self, rect: Rect, color: Color, width: f32);
    fn draw_text(&mut self, text: &str, position: Point, style: &TextStyle);
    fn draw_line(&mut self, from: Point, to: Point, color: Color, width: f32);
    fn fill_circle(&mut self, center: Point, radius: f32, color: Color);
    fn stroke_circle(
        &mut self,
        center: Point,
        radius: f32,
        color: Color,
        width: f32,
    );
    fn fill_arc(
        &mut self,
        center: Point,
        radius: f32,
        start_angle: f32,
        end_angle: f32,
        color: Color,
    );
    fn draw_path(&mut self, points: &[Point], color: Color, width: f32);
    fn fill_polygon(&mut self, points: &[Point], color: Color);
    fn push_clip(&mut self, rect: Rect);
    fn pop_clip(&mut self);
    fn push_transform(&mut self, transform: Transform2D);
    fn pop_transform(&mut self);
}

Canvas trait for paint operations.

This is a minimal abstraction over the rendering backend.

Required Methods

fn fill_rect(&mut self, rect: Rect, color: Color)

Draw a filled rectangle.

fn stroke_rect(&mut self, rect: Rect, color: Color, width: f32)

Draw a stroked rectangle.

fn draw_text(&mut self, text: &str, position: Point, style: &TextStyle)

Draw text.

fn draw_line(&mut self, from: Point, to: Point, color: Color, width: f32)

Draw a line between two points.

fn fill_circle(&mut self, center: Point, radius: f32, color: Color)

Draw a filled circle.

fn stroke_circle( &mut self, center: Point, radius: f32, color: Color, width: f32, )

Draw a stroked circle.

fn fill_arc( &mut self, center: Point, radius: f32, start_angle: f32, end_angle: f32, color: Color, )

Draw a filled arc (pie slice).

fn draw_path(&mut self, points: &[Point], color: Color, width: f32)

Draw a path (polyline).

fn fill_polygon(&mut self, points: &[Point], color: Color)

Fill a polygon.

fn push_clip(&mut self, rect: Rect)

Push a clip region.

fn pop_clip(&mut self)

Pop the clip region.

fn push_transform(&mut self, transform: Transform2D)

Push a transform.

fn pop_transform(&mut self)

Pop the transform.

Implementors

impl Canvas for RecordingCanvas