read_fonts::tables::variations

Struct TupleVariationCount

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pub struct TupleVariationCount(/* private fields */);
Expand description

The ‘tupleVariationCount’ field of the Tuple Variation Store Header

The high 4 bits are flags, and the low 12 bits are the number of tuple variation tables for this glyph. The count can be any number between 1 and 4095.

Implementations§

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impl TupleVariationCount

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pub const SHARED_POINT_NUMBERS: u16 = 32_768u16

Flag indicating that some or all tuple variation tables reference a shared set of “point” numbers.

These shared numbers are represented as packed point number data at the start of the serialized data.

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pub const COUNT_MASK: u16 = 4_095u16

Mask for the low 12 bits to give the shared tuple records index.

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pub fn bits(self) -> u16

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pub fn from_bits(bits: u16) -> Self

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pub fn shared_point_numbers(self) -> bool

true if any tables reference a shared set of point numbers

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pub fn count(self) -> u16

Trait Implementations§

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impl Clone for TupleVariationCount

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fn clone(&self) -> TupleVariationCount

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 Debug for TupleVariationCount

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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 Default for TupleVariationCount

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fn default() -> TupleVariationCount

Returns the “default value” for a type. Read more
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impl Hash for TupleVariationCount

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for TupleVariationCount

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fn cmp(&self, other: &TupleVariationCount) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for TupleVariationCount

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fn eq(&self, other: &TupleVariationCount) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for TupleVariationCount

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fn partial_cmp(&self, other: &TupleVariationCount) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Scalar for TupleVariationCount

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type Raw = <u16 as Scalar>::Raw

The raw byte representation of this type.
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fn to_raw(self) -> Self::Raw

Encode this type as raw big-endian bytes
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fn from_raw(raw: Self::Raw) -> Self

Create an instance of this type from raw big-endian bytes
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fn read(slice: &[u8]) -> Option<Self>

Attempt to read a scalar from a slice. Read more
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impl Copy for TupleVariationCount

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impl Eq for TupleVariationCount

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impl StructuralPartialEq for TupleVariationCount

Auto Trait Implementations§

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, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> FixedSize for T
where T: Scalar,

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const RAW_BYTE_LEN: usize = _

The raw size of this type, in bytes. 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 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> ToOwned for T
where 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 T
where 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 T
where 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.