Struct TableFunction 

pub struct TableFunction {
    table_fn: Arc<dyn Fn(Tag) -> Option<Blob> + Send + Sync>,
    tables: Arc<PerTableData<OnceLock<Option<(AtomicU8, Blob)>>>>,
}

Lazy, per table font data provided by a function.

Fields

table_fn: Arc<dyn Fn(Tag) -> Option<Blob> + Send + Sync>

tables: Arc<PerTableData<OnceLock<Option<(AtomicU8, Blob)>>>>

Implementations

impl TableFunction

pub fn new(table_fn: Arc<dyn Fn(Tag) -> Option<Blob> + Send + Sync>) -> Self

Creates a new font table function with the given callback that should return a blob containing the table data for the requested tag.

Trait Implementations

impl Clone for TableFunction

fn clone(&self) -> TableFunction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl From<TableFunction> for Source

fn from(value: TableFunction) -> Self

Converts to this type from the input type.

impl<'a> TableDataProvider<'a> for &'a TableFunction

type Entry = OnceLock<Option<(Atomic<u8>, Blob)>>

fn tables(&self) -> &'a PerTableData<Self::Entry>

fn table_state( &self, tag: Tag, entry: &'a Self::Entry, ) -> Option<TableState<'a>>

fn ankr(&self) -> Option<TableState<'a>>

fn avar(&self) -> Option<TableState<'a>>

fn base(&self) -> Option<TableState<'a>>

fn cff(&self) -> Option<TableState<'a>>

fn cff2(&self) -> Option<TableState<'a>>

fn cbdt(&self) -> Option<TableState<'a>>

fn cblc(&self) -> Option<TableState<'a>>

fn colr(&self) -> Option<TableState<'a>>

fn cpal(&self) -> Option<TableState<'a>>

fn cmap(&self) -> Option<TableState<'a>>

fn cvar(&self) -> Option<TableState<'a>>

fn cvt(&self) -> Option<TableState<'a>>

fn dmap(&self) -> Option<TableState<'a>>

fn dsig(&self) -> Option<TableState<'a>>

fn ebdt(&self) -> Option<TableState<'a>>

fn eblc(&self) -> Option<TableState<'a>>

fn feat(&self) -> Option<TableState<'a>>

fn fpgm(&self) -> Option<TableState<'a>>

fn fvar(&self) -> Option<TableState<'a>>

fn gasp(&self) -> Option<TableState<'a>>

fn gdef(&self) -> Option<TableState<'a>>

fn glyf(&self) -> Option<TableState<'a>>

fn glyf_extended(&self) -> Option<TableState<'a>>

fn gpos(&self) -> Option<TableState<'a>>

fn gsub(&self) -> Option<TableState<'a>>

fn gvar(&self) -> Option<TableState<'a>>

fn gvar_extended(&self) -> Option<TableState<'a>>

fn hdmx(&self) -> Option<TableState<'a>>

fn head(&self) -> Option<TableState<'a>>

fn hhea(&self) -> Option<TableState<'a>>

fn hhea_extended(&self) -> Option<TableState<'a>>

fn hmtx(&self) -> Option<TableState<'a>>

fn hmtx_extended(&self) -> Option<TableState<'a>>

fn hvar(&self) -> Option<TableState<'a>>

fn ift(&self) -> Option<TableState<'a>>

fn iftx(&self) -> Option<TableState<'a>>

fn jstf(&self) -> Option<TableState<'a>>

fn kern(&self) -> Option<TableState<'a>>

fn kerx(&self) -> Option<TableState<'a>>

fn loca(&self) -> Option<TableState<'a>>

fn loca_extended(&self) -> Option<TableState<'a>>

fn ltag(&self) -> Option<TableState<'a>>

fn math(&self) -> Option<TableState<'a>>

fn maxp(&self) -> Option<TableState<'a>>

fn maxp_extended(&self) -> Option<TableState<'a>>

fn meta(&self) -> Option<TableState<'a>>

fn mort(&self) -> Option<TableState<'a>>

fn morx(&self) -> Option<TableState<'a>>

fn mvar(&self) -> Option<TableState<'a>>

fn name(&self) -> Option<TableState<'a>>

fn os2(&self) -> Option<TableState<'a>>

fn post(&self) -> Option<TableState<'a>>

fn prep(&self) -> Option<TableState<'a>>

fn sbix(&self) -> Option<TableState<'a>>

fn stat(&self) -> Option<TableState<'a>>

fn svg(&self) -> Option<TableState<'a>>

fn trak(&self) -> Option<TableState<'a>>

fn varc(&self) -> Option<TableState<'a>>

fn vhea(&self) -> Option<TableState<'a>>

fn vhea_extended(&self) -> Option<TableState<'a>>

fn vmtx(&self) -> Option<TableState<'a>>

fn vmtx_extended(&self) -> Option<TableState<'a>>

fn vorg(&self) -> Option<TableState<'a>>

fn vvar(&self) -> Option<TableState<'a>>