Struct FontMetrics 

pub struct FontMetrics { /* private fields */ }

Font metrics extracted from a PDF font dictionary.

Stores glyph widths and font descriptor information (ascent, descent, bounding box) needed to calculate character bounding boxes.

Width values are in glyph space units (1/1000 of text space).

Implementations

impl FontMetrics

pub fn new( widths: Vec<f64>, first_char: u32, last_char: u32, missing_width: f64, ascent: f64, descent: f64, font_bbox: Option<[f64; 4]>, ) -> Self

Create FontMetrics from parsed PDF font dictionary values.

pub fn default_metrics() -> Self

Create default FontMetrics for when font info is unavailable.

pub fn get_width(&self, char_code: u32) -> f64

Get the width for a character code in glyph space (1/1000 of text space).

pub fn ascent(&self) -> f64

Font ascent in glyph space units (positive, above baseline).

pub fn descent(&self) -> f64

Font descent in glyph space units (negative, below baseline).

pub fn font_bbox(&self) -> Option<[f64; 4]>

Font bounding box [llx, lly, urx, ury] in glyph space units.

pub fn missing_width(&self) -> f64

Missing width used for characters outside the widths range.

pub fn first_char(&self) -> u32

First character code in the widths array.

pub fn last_char(&self) -> u32

Last character code in the widths array.

Trait Implementations

impl Clone for FontMetrics

fn clone(&self) -> FontMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FontMetrics

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

Formats the value using the given formatter.