Struct FontAtlasSet 

pub struct FontAtlasSet { /* private fields */ }

A map of font sizes to their corresponding FontAtlases, for a given font face.

Provides the interface for adding and retrieving rasterized glyphs, and manages the FontAtlases.

There is at most one FontAtlasSet for each font, stored in the FontAtlasSets resource. FontAtlasSets are added and updated by the queue_text function.

A FontAtlasSet contains one or more FontAtlases for each font size.

Implementations

impl FontAtlasSet

pub fn iter(&self) -> impl Iterator<Item = (&FontAtlasKey, &Vec<FontAtlas>)>

Returns an iterator over the FontAtlases in this set

pub fn has_glyph(&self, cache_key: CacheKey, font_size: &FontAtlasKey) -> bool

Checks if the given subpixel-offset glyph is contained in any of the FontAtlases in this set

pub fn add_glyph_to_atlas( &mut self, texture_atlases: &mut Assets<TextureAtlasLayout>, textures: &mut Assets<Image>, font_system: &mut FontSystem, swash_cache: &mut SwashCache, layout_glyph: &LayoutGlyph, font_smoothing: FontSmoothing, ) -> Result<GlyphAtlasInfo, TextError>

Adds the given subpixel-offset glyph to the FontAtlases in this set

pub fn get_glyph_atlas_info( &mut self, cache_key: CacheKey, font_smoothing: FontSmoothing, ) -> Option<GlyphAtlasInfo>

Generates the GlyphAtlasInfo for the given subpixel-offset glyph.

pub fn len(&self) -> usize

Returns the number of font atlases in this set.

pub fn is_empty(&self) -> bool

Returns true if the set has no font atlases.

pub fn get_outlined_glyph_texture( font_system: &mut FontSystem, swash_cache: &mut SwashCache, physical_glyph: &PhysicalGlyph, font_smoothing: FontSmoothing, ) -> Result<(Image, IVec2), TextError>

Get the texture of the glyph as a rendered image, and its offset

Trait Implementations

impl Debug for FontAtlasSet

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

Formats the value using the given formatter.

impl Default for FontAtlasSet

fn default() -> FontAtlasSet

Returns the “default value” for a type.

impl TypePath for FontAtlasSet

fn type_path() -> &'static str

Returns the fully qualified path of the underlying type.

fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type.

fn type_ident() -> Option<&'static str>

Returns the name of the type, or None if it is anonymous.

fn crate_name() -> Option<&'static str>

Returns the name of the crate the type is in, or None if it is anonymous.

fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous.