Struct PdfFont

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pub struct PdfFont {Show 14 fields
    pub font_name: String,
    pub font_data: Vec<u8>,
    pub flags: u32,
    pub bbox: [i16; 4],
    pub italic_angle: i16,
    pub ascent: i16,
    pub descent: i16,
    pub cap_height: i16,
    pub stem_v: i16,
    pub widths: Vec<u16>,
    pub first_char: u32,
    pub last_char: u32,
    pub units_per_em: u16,
    pub char_to_glyph: HashMap<char, u16>,
}

Expand description

Embedded TrueType font information

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§font_name: String

Font name (extracted from the TTF)

§font_data: Vec<u8>

Font data (complete TTF/OTF file)

§flags: u32

Font flags for the descriptor

§bbox: [i16; 4]

Font bounding box [llx lly urx ury]

§italic_angle: i16

Italic angle (0 for upright fonts)

§ascent: i16

Ascent (height above baseline)

§descent: i16

Descent (depth below baseline, typically negative)

§cap_height: i16

Cap height (height of capital letters)

§stem_v: i16

Stem vertical width

§widths: Vec<u16>

Character widths for all used characters

§first_char: u32

First character code in widths array

§last_char: u32

Last character code in widths array

§units_per_em: u16

Units per em (font scaling factor, typically 1000 or 2048)

§char_to_glyph: HashMap<char, u16>

Character to glyph ID mapping for Unicode support

Implementations§

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impl PdfFont

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pub fn from_ttf_data(font_data: Vec<u8>) -> Result<Self>

Parse a TrueType font from raw bytes

Extracts font metrics and prepares the font for embedding in PDF. Supports basic Latin character set (ASCII 32-126).

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pub fn char_width(&self, c: char) -> u16

Get the width of a character in font units

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pub fn measure_text(&self, text: &str, font_size_pt: f64) -> f64

Measure text width at a given font size

Trait Implementations§

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impl Clone for PdfFont

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fn clone(&self) -> PdfFont

Returns a duplicate of the value. Read more

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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

Auto Trait Implementations§

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impl UnwindSafe for PdfFont

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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