Struct SharedFont 

pub(super) struct SharedFont(Arc<SharedFontRepr>);

The state every instance of a font shares.

Reference counted internally: cloning it costs no more than the count, and it is thread safe.

Tuple Fields

0: Arc<SharedFontRepr>

Implementations

impl SharedFont

fn new(source: impl Into<Source>, index: u32) -> Option<Self>

Creates a new font from the given source and font index.

See Font::new for how index is used.

fn source(&self) -> &Source

Returns the underlying source of font data.

pub(super) fn kind(&self) -> Kind<'_>

Returns the underlying kind of the font.

fn multiple_master(&self) -> Option<&MultipleMaster>

Returns the design space of a Type 1 multiple master font.

fn type1_axes(&self) -> &[VariationAxisRecord]

Returns the axes of a Type 1 multiple master font, which is empty for any other font.

fn metrics(&self) -> &Metrics

Returns the metrics describing the font as a whole, at its default location.

fn style_metrics(&self) -> &StyleMetrics

Returns the style measurements at the font’s default location.

pub(super) fn num_glyphs(&self) -> u32

Returns the number of glyphs in the font.

Fixed for the font: no location varies it.

fn units_per_em(&self) -> u16

Returns the size of the em square, in font units.

Fixed for the font: no location varies it.

pub(super) fn sfnt(&self) -> Option<&SfntCaches>

Returns the caches of an SFNT font, or None for a font of another kind.

fn tables_arc(&self) -> Option<&Arc<Tables>>

Returns the tables behind this font, for a cache that holds them.

pub(super) fn unicode_charmap(&self) -> Option<&SfntUnicodeCharmap<'_>>

Returns the selected character maps, parsed once for the font.

pub(super) fn encodings(&self) -> Option<&EncodingTables<'_>>

Returns all selectable cmap subtables, parsed on first use.

pub(super) fn standalone_cff_unicode_charmap(&self) -> Option<&UnicodeCharmap>

fn h_metric_records(&self) -> &GlyphMetricRecords<'_>

Returns the horizontal glyph metrics, parsed once for the font.

fn v_metric_records(&self) -> &GlyphMetricRecords<'_>

Returns the vertical glyph metrics, parsed once for the font.

Read on demand, unlike the horizontal metrics: most text is horizontal and never asks.

fn selected_glyf_loca(&self) -> Option<&(Glyf<'_>, Loca<'_>)>

Returns the outline tables, parsed once for the font.

Outlines and metrics in both directions read these, so they are shared rather than parsed by each.

fn hvar(&self) -> Option<&Hvar<'_>>

Returns HVAR, parsed once for the font.

fn vvar(&self) -> Option<&Vvar<'_>>

Returns VVAR, parsed once for the font.

fn selected_gvar(&self) -> Option<&SelectedGvar<'_>>

Returns GVAR, or gvar without it, parsed once for the font.

Typically about half a variable font, so nothing should ask for this that another table can answer.

fn vorg(&self) -> Option<&Vorg<'_>>

Returns VORG, parsed once for the font.

fn cff2(&self) -> Option<&CffFontRef<'_>>

Returns the CFF2 charstring outlines, parsed once for the font.

Reading one means running it, so nothing here is parsed per glyph beyond what a charstring itself needs.

fn cff(&self) -> Option<&CffFontRef<'_>>

Returns the CFF charstring outlines, parsed once for the font.

fn standalone_cff(&self) -> Option<&CffFontRef<'_>>

fn cid_glyphs(&self) -> Option<&[u16]>

Returns the glyph for each CID of a standalone CID-keyed font, built once.

As in FreeType, the table ends at the largest CID and the first glyph with a CID is kept.

fn standalone_cff_subfonts(&self) -> Option<&[Option<Subfont>]>

fn varc_outlines(&self) -> Option<&Outlines<'_>>

Returns the variable composites, read once for the font.

fn colr_tables(&self) -> Option<&ColrTables<'_>>

Returns COLR with its variation tables, read once for the font.

fn cpal(&self) -> Option<&Cpal<'_>>

Returns CPAL, read once for the font.

fn sbix(&self) -> Option<&Sbix<'_>>

Returns sbix, read once for the font.

fn cbdt(&self) -> Option<&(Cblc<'_>, Cbdt<'_>)>

Returns CBLC and CBDT, read once for the font.

fn ebdt(&self) -> Option<&(Eblc<'_>, Ebdt<'_>)>

Returns EBLC and EBDT, read once for the font.

fn tables(&self) -> &Tables

Returns an object that provides access to individual font tables.

For non-SFNT fonts, this will return an empty set of tables.

Trait Implementations

impl Clone for SharedFont

fn clone(&self) -> SharedFont

Returns a duplicate of the value.

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

Performs copy-assignment from source.