Struct LoadedFonts 

pub struct LoadedFonts<T> {
    pub fonts: HashMap<FontId, T>,
    /* private fields */
}

A map of pre-loaded fonts, keyed by FontId (from rust-fontconfig)

This is passed to the shaper - no font loading happens during shaping The fonts are loaded BEFORE layout based on the font chains and text content.

Provides both FontId and hash-based lookup for efficient glyph operations.

Fields

fonts: HashMap<FontId, T>

Primary storage: FontId -> Font

Implementations

impl<T: ParsedFontTrait> LoadedFonts<T>

pub fn new() -> Self

pub fn insert(&mut self, font_id: FontId, font: T)

Insert a font with its FontId

pub fn get(&self, font_id: &FontId) -> Option<&T>

Get a font by FontId

pub fn get_by_hash(&self, hash: u64) -> Option<&T>

Get a font by its hash

pub fn get_font_id_by_hash(&self, hash: u64) -> Option<&FontId>

Get the FontId for a hash

pub fn contains_key(&self, font_id: &FontId) -> bool

Check if a FontId is present

pub fn contains_hash(&self, hash: u64) -> bool

Check if a hash is present

pub fn iter(&self) -> impl Iterator<Item = (&FontId, &T)>

Iterate over all fonts

pub fn len(&self) -> usize

Get the number of loaded fonts

pub fn is_empty(&self) -> bool

Check if empty

Trait Implementations

impl<T: Clone> Clone for LoadedFonts<T>

fn clone(&self) -> LoadedFonts<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for LoadedFonts<T>

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

Formats the value using the given formatter.

impl<T: ParsedFontTrait> Default for LoadedFonts<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T: ParsedFontTrait> FromIterator<(FontId, T)> for LoadedFonts<T>

fn from_iter<I: IntoIterator<Item = (FontId, T)>>(iter: I) -> Self

Creates a value from an iterator.