Enum Font 

pub enum Font {
    Base14(Base14Font),
    Embedded(EmbeddedFontId),
}

A renderable font – either one of the Adobe Core 14 (no data embedded; outlines from the PDF reader) or a bundled TrueType cut (data embedded, subset per-document).

Examples

use mos_fonts::{Base14Font, Font};

let font = Font::Base14(Base14Font::Helvetica);

assert_eq!(font.pdf_base_name(), "Helvetica");

Variants

Base14(Base14Font)

A Base14 face. Layout uses AFM metrics; PDF emit uses WinAnsiEncoding + per-document /Differences.

Embedded(EmbeddedFontId)

A bundled embedded face. Layout uses rustybuzz shaping; PDF emit produces a Type 0 CID font with /ToUnicode.

Implementations

impl Font

pub const ALL_BASE14: [Self; 14]

All 14 Base14 faces in Mosaic’s PDF-resource order (F1..F14).

Page resource dictionaries always enumerate these – even when unused – so a Base14-only document’s byte output stays stable across runs. Embedded faces are added on top, per-document.

The ordering is decoupled from Base14Font::ALL: the four pre-existing layout faces keep their historical F1..F4 resource numbers so existing integration goldens don’t shift.

pub const fn base14(self) -> Option<Base14Font>

If this is a Base14 face, return the underlying variant.

Examples

use mos_fonts::{Base14Font, Font};

let font = Font::Base14(Base14Font::Courier);

assert_eq!(font.base14(), Some(Base14Font::Courier));

pub const fn embedded(self) -> Option<EmbeddedFontId>

If this is an embedded face, return its bundled id.

Examples

use mos_fonts::{EmbeddedFontId, Font};

let font = Font::Embedded(EmbeddedFontId::Bold);

assert_eq!(font.embedded(), Some(EmbeddedFontId::Bold));

pub fn pdf_base_name(self) -> &'static str

PDF /BaseFont name for Base14 (e.g. "Helvetica-BoldOblique") or the embedded face’s PostScript name. The embedded path also gets a six-letter subset tag in the actual PDF emission, but that belongs to the per-document subset, not the bundled cut.

Examples

use mos_fonts::{Base14Font, Font};

let font = Font::Base14(Base14Font::HelveticaBoldOblique);

assert_eq!(font.pdf_base_name(), "Helvetica-BoldOblique");

pub fn pdf_resource_name(self) -> &'static [u8]

Stable per-resource name (F1..F14 for Base14, F15..F20 for embedded). Page font dictionaries map these to indirect font refs.

Examples

use mos_fonts::{Base14Font, Font};

let font = Font::Base14(Base14Font::Helvetica);

assert_eq!(font.pdf_resource_name(), b"F1");

fn base14_resource_name(self) -> &'static [u8]

Internal: Base14-only resource name table (F1..F14). Kept as a method on Font rather than on Base14Font so the lookup reads the same way the enum dispatch does. The Embedded arm is handled at the caller (pdf_resource_name) so this private helper never sees it.

Trait Implementations

impl Clone for Font

fn clone(&self) -> Font

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Font

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

Formats the value using the given formatter.

impl From<Base14Font> for Font

fn from(f: Base14Font) -> Self

Converts to this type from the input type.

impl From<EmbeddedFontId> for Font

fn from(id: EmbeddedFontId) -> Self

Converts to this type from the input type.

impl Hash for Font

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Font

fn eq(&self, other: &Font) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Font

impl Eq for Font

impl StructuralPartialEq for Font