Struct SvgFonts 

pub struct SvgFonts { /* private fields */ }

Available on crate feature svg-text only.

The font faces an ingested SVG’s <text> may be set in.

Each face is registered under the family names its own name table declares, which is how an SVG’s font-family finds it. Empty by default: a session that registers nothing renders no text, and says so in the report.

Cheap to clone — the registered faces are shared, not copied — so one set built at start-up serves every document.

use pdfrum::{Document, SvgFonts};

let mut fonts = SvgFonts::new();
fonts.register(std::fs::read("Inter.ttf")?);
assert_eq!(fonts.families(), ["Inter"]);

let doc = Document::open("in.pdf")?;
let mut edit = doc.edit();
edit.set_svg_fonts(fonts);

Implementations

impl SvgFonts

pub fn new() -> Self

An empty set: no faces, so no text draws.

pub fn register(&mut self, program: impl Into<Vec<u8>>) -> bool

Register one font program — a TTF, OTF or TTC — under the families its own name table declares.

Returns whether the face was usable. A false is a font this build cannot parse, not an error: registering a directory of faces should not fail on the one that is a README, and a family that never arrives shows up as a reported Unsupported::Text when a document asks for it.

The first face registered also becomes the default family, so the common case — one face, text with no font-family — needs no second call.

pub fn families(&self) -> Vec<String>

Every family this set can serve, sorted and without duplicates.

What an SVG’s font-family is matched against, so it is also the answer to “why did that text not draw”.

pub fn is_empty(&self) -> bool

Whether any face is registered.

true means every <text> in every document is reported rather than drawn, which is what this crate did before the feature existed.

Trait Implementations

impl Clone for SvgFonts

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SvgFonts

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

Formats the value using the given formatter.

impl Default for SvgFonts

fn default() -> Self

Returns the “default value” for a type.