Struct FontInfo

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pub struct FontInfo {
    pub name: String,
    pub family: FontFamily,
    pub weight: FontWeight,
    pub italic: bool,
    pub is_base14: bool,
    pub ascender: f32,
    pub descender: f32,
    pub line_gap: f32,
    pub cap_height: f32,
    pub x_height: f32,
    /* private fields */
}

Expand description

Information about a font.

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§name: String

Font name (e.g., “Helvetica-Bold”)

§family: FontFamily

Font family

§weight: FontWeight

Font weight

§italic: bool

Whether the font is italic/oblique

§is_base14: bool

Whether this is a Base-14 font

§ascender: f32

Ascender height (above baseline)

§descender: f32

Descender depth (below baseline, negative)

§line_gap: f32

Line gap (extra space between lines)

§cap_height: f32

Cap height (height of capital letters)

§x_height: f32

x-height (height of lowercase x)

Implementations§

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impl FontInfo

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

Calculate the width of text in this font.

Returns width in points for the given font size.

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pub fn char_width(&self, ch: char) -> f32

Get the width of a single character in font units (1/1000 of em).

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

Get the line height for this font at the given size.

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pub fn line_spacing_factor(&self) -> f32

Get recommended line spacing multiplier.

Trait Implementations§

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impl Clone for FontInfo

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fn clone(&self) -> FontInfo

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 FontInfo

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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 FontInfo

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<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

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fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

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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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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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