Struct SwashCache

pub struct SwashCache {
    pub image_cache: HashMap<CacheKey, Option<Image>, BuildHasherDefault<FxHasher>>,
    pub outline_command_cache: HashMap<CacheKey, Option<Vec<Command>>, BuildHasherDefault<FxHasher>>,
    /* private fields */
}

Cache for rasterizing with the swash scaler

Fields

image_cache: HashMap<CacheKey, Option<Image>, BuildHasherDefault<FxHasher>>

outline_command_cache: HashMap<CacheKey, Option<Vec<Command>>, BuildHasherDefault<FxHasher>>

Implementations

impl SwashCache

pub fn new() -> SwashCache

Create a new swash cache

pub fn get_image_uncached( &mut self, font_system: &mut FontSystem, cache_key: CacheKey, ) -> Option<Image>

Create a swash Image from a cache key, without caching results

pub fn get_image( &mut self, font_system: &mut FontSystem, cache_key: CacheKey, ) -> &Option<Image>

Create a swash Image from a cache key, caching results

pub fn get_outline_commands( &mut self, font_system: &mut FontSystem, cache_key: CacheKey, ) -> Option<&[Command]>

pub fn with_pixels<F>( &mut self, font_system: &mut FontSystem, cache_key: CacheKey, base: Color, f: F, )

where F: FnMut(i32, i32, Color),

Enumerate pixels in an Image, use with_image for better performance

Trait Implementations

impl Debug for SwashCache

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

Formats the value using the given formatter.