Struct Canvas

pub struct Canvas { /* private fields */ }

A canvas that can be drawn on.

Implementations

impl Canvas

pub fn new() -> Canvas

Create a new canvas.

pub fn primitives(&self) -> impl Iterator<Item = &Primitive>

Get the primitives of the canvas.

pub fn clear(&mut self)

Clear the canvas.

pub fn rect(&mut self, rect: Rect, paint: impl Into<Paint>)

Draw a rectangle.

pub fn trigger(&mut self, rect: Rect, view: ViewId)

Draw a trigger rectangle.

pub fn fill( &mut self, curve: impl Into<Arc<Curve>>, fill: FillRule, paint: impl Into<Paint>, )

Fill a curve.

pub fn stroke( &mut self, curve: impl Into<Arc<Curve>>, stroke: impl Into<Stroke>, paint: impl Into<Paint>, )

Stroke a curve.

pub fn paragraph(&mut self, paragraph: Paragraph, rect: Rect, bounds: Rect)

Draw a paragraph.

pub fn draw_canvas(&mut self, canvas: Canvas)

Draw a canvas.

pub fn overlay<T>(&mut self, index: i32, f: impl FnOnce(&mut Canvas) -> T) -> T

Draw an overlay.

pub fn layer<T>( &mut self, transform: Affine, mask: Option<Mask>, view: Option<ViewId>, f: impl FnOnce(&mut Canvas) -> T, ) -> T

Draw a layer.

pub fn transformed<T>( &mut self, transform: Affine, f: impl FnOnce(&mut Canvas) -> T, ) -> T

Draw a layer with a transformation.

pub fn translated<T>( &mut self, translation: Vector, f: impl FnOnce(&mut Canvas) -> T, ) -> T

Draw a layer with a translation.

pub fn rotated<T>(&mut self, angle: f32, f: impl FnOnce(&mut Canvas) -> T) -> T

Draw a layer with a rotation.

pub fn scaled<T>( &mut self, scale: Vector, f: impl FnOnce(&mut Canvas) -> T, ) -> T

Draw a layer with a scale.

pub fn masked<T>(&mut self, mask: Mask, f: impl FnOnce(&mut Canvas) -> T) -> T

Draw a layer with a mask.

pub fn hoverable<T>( &mut self, view: ViewId, f: impl FnOnce(&mut Canvas) -> T, ) -> T

Draw a layer with a view.

pub fn view_at(&self, point: Point) -> Option<ViewId>

Get the view at a point.

Trait Implementations

impl Clone for Canvas

fn clone(&self) -> Canvas

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Canvas

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

Formats the value using the given formatter.

impl Default for Canvas

fn default() -> Canvas

Returns the “default value” for a type.

impl PartialEq for Canvas

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Canvas