Struct ttf_parser::hmtx::Table

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pub struct Table<'a> {
    pub metrics: LazyArray16<'a, Metrics>,
    pub bearings: LazyArray16<'a, i16>,
    pub number_of_metrics: u16,
}
Expand description

A Horizontal/Vertical Metrics Table.

hmtx and vmtx tables has the same structure, so we’re reusing the same struct for both.

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§metrics: LazyArray16<'a, Metrics>

A list of metrics indexed by glyph ID.

§bearings: LazyArray16<'a, i16>

Side bearings for glyph IDs greater than or equal to the number of metrics values.

§number_of_metrics: u16

Sum of long metrics + bearings.

Implementations§

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impl<'a> Table<'a>

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pub fn parse( number_of_metrics: u16, number_of_glyphs: NonZeroU16, data: &'a [u8] ) -> Option<Self>

Parses a table from raw data.

  • number_of_metrics is from the hhea/vhea table.
  • number_of_glyphs is from the maxp table.
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pub fn advance(&self, glyph_id: GlyphId) -> Option<u16>

Returns advance for a glyph.

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pub fn side_bearing(&self, glyph_id: GlyphId) -> Option<i16>

Returns side bearing for a glyph.

Trait Implementations§

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impl<'a> Clone for Table<'a>

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fn clone(&self) -> Table<'a>

Returns a copy 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<'a> Debug for Table<'a>

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

Formats the value using the given formatter. Read more
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impl<'a> Copy for Table<'a>

Auto Trait Implementations§

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impl<'a> RefUnwindSafe for Table<'a>

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impl<'a> Send for Table<'a>

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impl<'a> Sync for Table<'a>

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impl<'a> Unpin for Table<'a>

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impl<'a> UnwindSafe for Table<'a>

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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> 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<U> for Twhere 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> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.