Trait font_types::Pen

pub trait Pen {
    // Required methods
    fn move_to(&mut self, x: f32, y: f32);
    fn line_to(&mut self, x: f32, y: f32);
    fn quad_to(&mut self, cx0: f32, cy0: f32, x: f32, y: f32);
    fn curve_to(
        &mut self,
        cx0: f32,
        cy0: f32,
        cx1: f32,
        cy1: f32,
        x: f32,
        y: f32
    );
    fn close(&mut self);
}

Interface for accepting a sequence of path commands.

This is a general abstraction to unify ouput for processes that decode and/or transform outlines.

/// AbstractPen in Python terms. https://github.com/fonttools/fonttools/blob/78e10d8b42095b709cd4125e592d914d3ed1558e/Lib/fontTools/pens/basePen.py#L54. Implementations

Required Methods

fn move_to(&mut self, x: f32, y: f32)

Emit a command to begin a new subpath at (x, y).

fn line_to(&mut self, x: f32, y: f32)

Emit a line segment from the current point to (x, y).

fn quad_to(&mut self, cx0: f32, cy0: f32, x: f32, y: f32)

Emit a quadratic bezier segment from the current point with a control point at (cx0, cy0) and ending at (x, y).

fn curve_to(&mut self, cx0: f32, cy0: f32, cx1: f32, cy1: f32, x: f32, y: f32)

Emit a cubic bezier segment from the current point with control points at (cx0, cy0) and (cx1, cy1) and ending at (x, y).

fn close(&mut self)

Emit a command to close the current subpath.

Implementors