Struct FaceTable 

pub struct FaceTable { /* private fields */ }

Every named family a crate::wysiwyg::VisualMap draws, by the id its glyphs carry — the side table that lets Style stay Copy while a face name stays a String.

Small: one entry per distinct family name in the document, which is normally none. A splice may leave an entry no glyph names any more, because the splice reuses the previous map’s table rather than rebuilding it from rows it deliberately did not walk; an unused entry costs a string and draws nothing.

Implementations

impl FaceTable

pub fn name(&self, id: FaceId) -> Option<&str>

The family name id stands for, or None for an id from another map — which a frontend draws in the theme’s body face, as it draws a face it cannot resolve.

pub fn spell(&self, face: FaceRef) -> Option<Cow<'_, str>>

The face a glyph carries, spelled — the generic’s CSS keyword, or the family name this table holds for the id. The one place a FaceRef becomes the token a data-font is written with, which is what every frontend wants of it.

None for an id no table knows, which is an id from another map: a frontend draws that in the theme’s body face, and a face that draws as absence names itself as absence too.

leaf-ffi’s and leaf-wasm’s Run::font are this; leaf-swift’s and leaf-ratatui’s face resolvers can be.

pub fn iter(&self) -> impl Iterator<Item = (FaceId, &str)>

Every family in the table, by id — how a frontend warms a font cache before it draws.

pub fn is_empty(&self) -> bool

pub fn len(&self) -> usize

Trait Implementations

impl Clone for FaceTable

fn clone(&self) -> FaceTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FaceTable

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

Formats the value using the given formatter.

impl Default for FaceTable

fn default() -> FaceTable

Returns the “default value” for a type.

impl Eq for FaceTable

impl PartialEq for FaceTable

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FaceTable