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PdfFont

edgeparse_core::pdf::font

Struct PdfFont 

Source 
pub struct PdfFont {
Show 15 fields
    pub name: String,
    pub base_font: String,
    pub subtype: String,
    pub widths: HashMap<u32, f64>,
    pub default_width: f64,
    pub to_unicode: HashMap<u32, String>,
    pub encoding: String,
    pub is_standard: bool,
    pub flags: u32,
    pub italic_angle: f64,
    pub weight: f64,
    pub bytes_per_code: u8,
    pub ascent: f64,
    pub descent: f64,
    pub font_bbox: [f64; 4],

}
Expand description

Represents a resolved PDF font with metrics and encoding info.

§Invariants

widths, default_width, ascent, descent, and font_bbox are always stored in per-mille text-space units (1000 = 1 em). Callers convert to user space with value / 1000.0 * font_size. Type 3 fonts, whose native /Widths live in glyph space scaled by /FontMatrix, are normalized at resolve time by crate::pdf::font_type3 so this invariant holds for every subtype.

Fields§

§name: String

Resource name (e.g., “F1”)

§base_font: String

Base font name (e.g., “Helvetica”, “ArialMT”)

§subtype: String

Font subtype (Type1, TrueType, Type0, Type3)

§widths: HashMap<u32, f64>

Glyph widths indexed by character code (per-mille text space)

§default_width: f64

Default width for missing glyphs (per-mille text space)

§to_unicode: HashMap<u32, String>

ToUnicode mapping: character code → Unicode string

§encoding: String

Encoding name

§is_standard: bool

Whether this is a standard 14 font

§flags: u32

Font descriptor flags

§italic_angle: f64

Italic angle

§weight: f64

Font weight (estimated)

§bytes_per_code: u8

Bytes per character code (1 for Type1/TrueType, 2 for Type0/CID)

§ascent: f64

Font ascent in per-mille text-space units (1000 = 1 em)

§descent: f64

Font descent in per-mille text-space units (negative)

§font_bbox: [f64; 4]

Font bounding box [llx, lly, urx, ury] in per-mille text-space units

Implementations§

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impl PdfFont

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pub fn default_font(name: &str) -> Self

Create a default font with standard metrics.

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

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

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pub fn decode_char(&self, char_code: u32) -> String

Get Unicode string for a character code.

Fallback order (ISO 32000 text extraction practice):

  1. /ToUnicode CMap (and Differences / embedded cmap filled at resolve time)
  2. Declared single-byte encoding (WinAnsi / MacRoman)
  3. For Type0 / Identity-H: ASCII-range CID → Latin-1; else replacement .
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pub fn is_bold(&self) -> bool

Whether the font is bold (estimated from name or flags).

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pub fn is_italic(&self) -> bool

Whether the font is italic (estimated from name or italic angle).

Trait Implementations§

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impl Clone for PdfFont

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for PdfFont

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

Formats the value using the given formatter. Read more

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