Enum SubstituteSource 

pub enum SubstituteSource {
    None,
    Builtin,
    Dir(PathBuf),
}

Where non-embedded glyph substitution (the Full GlyphPainting tier) draws replacement faces from. The default, None, substitutes nothing – Full behaves exactly like AllEmbedded until a caller opts in.

Variants

None

No substitution: non-embedded fonts stay unpainted.

Builtin

Compiled-in faces: the OFL Croscore set (Arimo/Tinos/Cousine, metric-compatible with Helvetica/Times/Courier) bundled via include_bytes! behind the substitute-fonts Cargo feature – see builtin_fonts_available and crate::substitute::BuiltinProvider. Built without that feature, there are no compiled-in faces to hand out: Builtin degrades to no provider at all, so Full behaves exactly like AllEmbedded for non-embedded fonts, the same as SubstituteSource::None.

Dir(PathBuf)

Faces read from a directory at render time (e.g. an installed pdfboss-fonts package), one file per style – see substitute::face_filename.

Trait Implementations

impl Clone for SubstituteSource

fn clone(&self) -> SubstituteSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SubstituteSource

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

Formats the value using the given formatter.

impl Default for SubstituteSource

fn default() -> SubstituteSource

Returns the “default value” for a type.