Struct SvgFontResolver 

pub struct SvgFontResolver {
    font_id_cache: Mutex<FxHashMap<Font, ID>>,
    fallback_id_cache: Mutex<FxHashMap<char, Vec<ID>>>,
    context: Arc<FontContext>,
}

Used to dynamically query fonts used in SVGs and insert them into the fontDB used when rasterizing.

Fields

font_id_cache: Mutex<FxHashMap<Font, ID>>

Cache for Font to ID

fallback_id_cache: Mutex<FxHashMap<char, Vec<ID>>>

context: Arc<FontContext>

Implementations

impl SvgFontResolver

pub(crate) fn new(context: Arc<FontContext>) -> Self

fn insert_into_database( &self, font: &Font, database: &mut Arc<Database>, ) -> Option<ID>

Insert the font into the database in SvgFontResolver and into the cache.

Trait Implementations

impl FontResolver for SvgFontResolver

fn resolve(&self, font: &Font, database: &mut Arc<Database>) -> Option<ID>

Attempt to resolve a font reference using the provided database of fonts. Adding new fonts to the database is allowed. Return an index into the database if the font resolves to an entry, otherwise return None.

fn resolve_fallback( &self, character: char, excluded: &[ID], database: &mut Arc<Database>, ) -> Option<ID>

Backup resolve. Find a font that can represent char and is not in excluded.