Enum GlyphSource 

pub enum GlyphSource {
    Fontations(Face),
    Type1(Arc<Type1Font>),
    None,
}

Where glyphs come from.

Fontations covers TrueType, bare CFF, OpenType and everything else with a table directory; Type1 covers PFA/PFB programs and the two Multiple-Master fallback faces; None is a Type3 font or a program nothing could read.

Variants

Fontations(Face)

A face read by skrifa, over bytes this value owns.

Type1(Arc<Type1Font>)

A Type 1 program, optionally instantiated at design coordinates.

None

No glyphs at all.

Implementations

impl GlyphSource

pub fn from_bytes(bytes: impl Into<Arc<[u8]>>) -> Option<Self>

Open a TrueType, OpenType, bare-CFF, or Type 1 program from its bytes.

None when no backend recognises the blob.

pub fn units_per_em(&self) -> u16

Design units per em; 0 when there is no face.

pub fn num_glyphs(&self) -> u32

How many glyphs the face declares.

pub fn is_truetype(&self) -> bool

Is this a TrueType-shaped face? PDFium’s per-glyph fallback and its ShouldUseFont test both branch on it.

pub fn char_index(&self, charmap: Charmap, code: u32) -> u16

The glyph a character code selects through the face’s currently selected charmap.

Returns 0 rather than None on a miss, because every ladder in the former working note and the former working note tests != 0 and 0 is .notdef either way.

pub fn charmaps(&self) -> Vec<CharmapId>

The charmaps the face declares, as (platform, encoding) pairs in table order.

pub fn default_advance(&self, gid: Gid) -> i32

Advance in 1000/em units at the face’s default location.

pub fn postscript_name(&self) -> Option<String>

PostScript name, or a family/style display name, when the face has one.

pub fn is_fixed_pitch(&self) -> bool

Fixed pitch: post.isFixedPitch, or Type 1 /isFixedPitch.

pub fn is_italic(&self) -> bool

Italic: OS/2 / macStyle / post.italicAngle, or a Type 1 /ItalicAngle.

pub fn is_bold(&self) -> bool

Bold: OS/2 / macStyle, or a Type 1 name containing Bold / Black.

pub fn cap_height_unscaled(&self) -> Option<f32>

OS/2 sCapHeight in font units, when present.

pub fn unscaled_ascent(&self) -> Option<i32>

Ascender in font units (hhea, or the Type 1 bbox top).

pub fn unscaled_descent(&self) -> Option<i32>

Descender in font units (hhea, or the Type 1 bbox bottom).

pub fn unscaled_bbox(&self) -> Option<(i32, i32, i32, i32)>

Font bounding box in font units, (left, bottom, right, top).

pub fn unicode_mappings(&self, max: u32) -> Vec<(u32, u16)>

Unicode → glyph mappings with code <= max, sorted by codepoint.

A miss is omitted rather than recorded as glyph 0.

Trait Implementations

impl Clone for GlyphSource

fn clone(&self) -> GlyphSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GlyphSource

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

Formats the value using the given formatter.

impl Default for GlyphSource

fn default() -> GlyphSource

Returns the “default value” for a type.