Struct Font 

pub struct Font {
    pub name: String,
    pub data: Vec<u8>,
    pub format: FontFormat,
    pub metrics: FontMetrics,
    pub descriptor: FontDescriptor,
    pub glyph_mapping: GlyphMapping,
}

Represents a loaded font ready for embedding

Fields

name: String

Font name as it will appear in the PDF

data: Vec<u8>

Raw font data

format: FontFormat

Font format (TTF or OTF)

metrics: FontMetrics

Font metrics

descriptor: FontDescriptor

Font descriptor

glyph_mapping: GlyphMapping

Character to glyph mapping

Implementations

impl Font

pub fn new(name: impl Into<String>) -> Self

Create a new font with default values

pub fn from_file( name: impl Into<String>, path: impl AsRef<Path>, ) -> Result<Self>

Load a font from file path

pub fn from_bytes(name: impl Into<String>, data: Vec<u8>) -> Result<Self>

Load a font from byte data

pub fn postscript_name(&self) -> &str

Get the PostScript name of the font

pub fn has_glyph(&self, ch: char) -> bool

Check if the font contains a specific character

pub fn missing_glyphs(&self, text: &str) -> Vec<char>

Characters in text the font has no glyph for, deduplicated and in first-seen order. Control characters (newlines, tabs, …) are ignored because they are never rendered.

Such characters render as .notdef (an empty box) — this is the correct PDF behaviour when the embedded font genuinely lacks the glyph (issue #287). Use this to detect coverage gaps before rendering rather than discovering empty boxes in the output.

pub fn measure_text(&self, text: &str, font_size: f32) -> TextMeasurement

Measure text using this font at a specific size

pub fn line_height(&self, font_size: f32) -> f32

Get the recommended line height for this font at a specific size

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.