Struct FontData 

pub struct FontData {
    pub data: Arc<Vec<u8>>,
    pub font_ref: FontRef<'static>,
}

Stores font data with lifetime management.

This struct owns the font data bytes and provides a FontRef that can be used for glyph lookups and rasterization. The FontRef is guaranteed to be valid for the lifetime of this struct.

Fields

data: Arc<Vec<u8>>

Raw font data bytes (TTF/OTF)

font_ref: FontRef<'static>

Swash font reference for glyph operations

Implementations

impl FontData

pub fn new(data: Vec<u8>) -> Option<FontData>

Create a new FontData from bytes using face index 0.

Arguments

• data - Raw font data bytes (TTF/OTF format)

Returns

Some(FontData) if the font data is valid, None otherwise.

pub fn new_with_index(data: Vec<u8>, face_index: usize) -> Option<FontData>

Create a new FontData from bytes with a specific face index.

This is needed for TrueType Collection (.ttc) files where multiple font faces share the same data but have different face indices.

Arguments

• data - Raw font data bytes (TTF/OTF/TTC format)
• face_index - Face index within the font data (0 for single-face fonts)

Returns

Some(FontData) if the font data is valid, None otherwise.

Trait Implementations

impl Clone for FontData

fn clone(&self) -> FontData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FontData

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

Formats the value using the given formatter.