Struct scribl_curves::StrokeInProgress

pub struct StrokeInProgress { /* fields omitted */ }

While drawing, this stores one continuous poly-line (from pen-down to pen-up). Because we expect lots of fast changes to this, it uses interior mutability to avoid repeated allocations.

Implementations

impl StrokeInProgress

pub fn add_point(&mut self, p: Point, t: Time)

Adds a point, drawn at the given time (which must be at or after the previous last time).

Panics

Panics if t is too soon.

pub fn last_point(&self) -> Option<Point>

Returns the last point in the stroke.

pub fn start_time(&self) -> Option<Time>

Returns the time of the first point in the stroke.

pub fn render(
    &self,
    ctx: &mut impl RenderContext,
    style: StrokeStyle,
    time: Time
)

Renders the part of this stroke that is visible at the time time.

Trait Implementations

impl Clone for StrokeInProgress

fn clone(&self) -> StrokeInProgress

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Data for StrokeInProgress

fn same(&self, other: &Self) -> bool

Determine whether two values are the same.

impl Debug for StrokeInProgress

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

Formats the value using the given formatter.

impl Default for StrokeInProgress

fn default() -> StrokeInProgress

Returns the "default value" for a type.