Struct HarfrustShaper 

pub struct HarfrustShaper { /* private fields */ }

Pure Rust text shaping powered by harfrust

Optionally caches shaping results to avoid expensive re-shaping of identical text.

Implementations

impl HarfrustShaper

pub fn new() -> Self

Creates a new harfrust shaper ready to handle any script

pub fn with_cache() -> Self

Creates a new harfrust shaper with caching enabled

Uses default cache capacities (L1: 100, L2: 500 entries)

pub fn with_shared_cache(cache: SharedShapingCache) -> Self

Creates a new harfrust shaper with a custom cache

Useful for sharing a cache across multiple shapers

pub fn cache_stats(&self) -> Option<CacheStats>

Returns cache statistics if caching is enabled

pub fn cache_hit_rate(&self) -> Option<f64>

Returns the cache hit rate (0.0 to 1.0) if caching is enabled

Trait Implementations

impl Default for HarfrustShaper

fn default() -> Self

Returns the “default value” for a type.

impl Shaper for HarfrustShaper

fn name(&self) -> &'static str

Identify yourself in logs and error messages

fn shape( &self, text: &str, font: Arc<dyn FontRef>, params: &ShapingParams, ) -> Result<ShapingResult>

Transform characters into positioned glyphs

fn supports_script(&self, _script: &str) -> bool

Can you handle this script?

fn clear_cache(&self)

Flush any cached shaping data

impl Stage for HarfrustShaper

fn name(&self) -> &'static str

Who are you? Used for debugging and logging

fn process(&self, ctx: PipelineContext) -> Result<PipelineContext>

Do your work and pass the context forward