Struct Type3GlyphCache 

pub struct Type3GlyphCache { /* private fields */ }

Thread-safe cache for Type 3 glyph outlines with a size limit.

Caches the parsed path operations for each (stream ObjectId, character code, font matrix) triple so that repeated rendering of the same glyph avoids re-parsing. When the cache reaches max_capacity, approximately 20% of entries are evicted to make room for new ones.

Implementations

impl Type3GlyphCache

pub fn new() -> Self

Create a new empty cache with the default capacity (1024).

pub fn with_capacity(max_capacity: usize) -> Self

Create a new cache with the specified maximum capacity.

pub fn max_capacity(&self) -> usize

Returns the maximum capacity.

pub fn get_or_insert( &self, stream_id: ObjectId, code: u8, font_matrix: &[f32; 6], compute: impl FnOnce() -> Type3GlyphEntry, ) -> Type3GlyphEntry

Get a cached entry or compute and insert it.

If the (stream_id, code, font_matrix) triple is already cached, returns the cached entry. Otherwise, calls compute to produce a new entry, inserts it, and returns it.

Trait Implementations

impl Default for Type3GlyphCache

fn default() -> Self

Returns the “default value” for a type.