Struct write_fonts::tables::glyf::SimpleGlyph

pub struct SimpleGlyph {
    pub bbox: Bbox,
    /* private fields */
}

A simple (without components) glyph

Fields

bbox: Bbox

Implementations

impl SimpleGlyph

pub fn from_bezpath(path: &BezPath) -> Result<Self, MalformedPath>

Attempt to create a simple glyph from a kurbo BezPath

The path may contain only line and quadratic bezier segments. The caller is responsible for converting any cubic segments to quadratics before calling.

Returns an error if the input path is malformed; that is, if it is empty, contains cubic segments, or does not begin with a ‘move’ instruction.

Context

• In the glyf table simple (contour based) glyph paths implicitly close when rendering.
• In font sources, and svg, open and closed paths are distinct.
  • In SVG closure matters due to influence on strokes, https://www.w3.org/TR/SVG11/paths.html#PathDataClosePathCommand.
• An explicit closePath joins the first/last points of a contour
  • This is not the same as ending with some other drawing command whose endpoint is the contour startpoint
• In FontTools endPath says I’m done with this subpath, BezPath has no endPath.

Context courtesy of @anthrotype.

pub fn interpolatable_glyphs_from_bezpaths( paths: &[BezPath] ) -> Result<Vec<Self>, MalformedPath>

Attempt to create a set of interpolation-compatible glyphs from a set of paths.

The paths are expected to be preprocessed, and interpolation compatible (i.e. they should have the same number and type of points, in the same order.) They should contain only line and quadratic segments; the caller is responsible for converting cubics to quadratics as needed.

This method is provided for use when compiling variable fonts. The inputs are expected to be different instances of the same named glyph, each corresponding to a different location in the variation space.

pub fn contours(&self) -> &[Contour]

Trait Implementations

impl Clone for SimpleGlyph

fn clone(&self) -> SimpleGlyph

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SimpleGlyph

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

Formats the value using the given formatter.

impl<'a> FontRead<'a> for SimpleGlyph

fn read(data: FontData<'a>) -> Result<Self, ReadError>

Read an instace of Self from the provided data, performing validation.

impl FontWrite for SimpleGlyph

fn write_into(&self, writer: &mut TableWriter)

Write our data and information about offsets into this TableWriter.

fn table_type(&self) -> TableType

The type of this table.

impl From<SimpleGlyph> for Glyph

fn from(value: SimpleGlyph) -> Self

Converts to this type from the input type.

impl PartialEq for SimpleGlyph

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl SomeGlyph for SimpleGlyph

fn is_empty(&self) -> bool

Returns true if the glyph contains no contours or components.

impl Validate for SimpleGlyph

fn validate_impl(&self, ctx: &mut ValidationCtx)

Validate this table.

fn validate(&self) -> Result<(), ValidationReport>

Ensure that this table is well-formed, reporting any errors.

impl Eq for SimpleGlyph

impl StructuralEq for SimpleGlyph

impl StructuralPartialEq for SimpleGlyph