Struct read_fonts::tables::variations::TupleIndex

pub struct TupleIndex(/* private fields */);

Implementations

impl TupleIndex

pub const EMBEDDED_PEAK_TUPLE: u16 = 32_768u16

Flag indicating that this tuple variation header includes an embedded peak tuple record, immediately after the tupleIndex field.

If set, the low 12 bits of the tupleIndex value are ignored.

Note that this must always be set within the ‘cvar’ table.

pub const INTERMEDIATE_REGION: u16 = 16_384u16

Flag indicating that this tuple variation table applies to an intermediate region within the variation space.

If set, the header includes the two intermediate-region, start and end tuple records, immediately after the peak tuple record (if present).

pub const PRIVATE_POINT_NUMBERS: u16 = 8_192u16

Flag indicating that the serialized data for this tuple variation table includes packed “point” number data.

If set, this tuple variation table uses that number data; if clear, this tuple variation table uses shared number data found at the start of the serialized data for this glyph variation data or ‘cvar’ table.

pub const TUPLE_INDEX_MASK: u16 = 4_095u16

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

pub fn bits(self) -> u16

pub fn from_bits(bits: u16) -> Self

pub fn embedded_peak_tuple(self) -> bool

true if the header includes an embedded peak tuple.

pub fn intermediate_region(self) -> bool

true if the header includes the two intermediate region tuple records.

pub fn private_point_numbers(self) -> bool

true if the data for this table includes packed point number data.

pub fn tuple_records_index(self) -> Option<u16>

Trait Implementations

impl Clone for TupleIndex

fn clone(&self) -> TupleIndex

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TupleIndex

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

Formats the value using the given formatter.

impl Default for TupleIndex

fn default() -> TupleIndex

Returns the “default value” for a type.

impl Hash for TupleIndex

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

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for TupleIndex

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

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for TupleIndex

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

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

impl PartialOrd for TupleIndex

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

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

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

impl Scalar for TupleIndex

type Raw = <u16 as Scalar>::Raw

The raw byte representation of this type.

fn to_raw(self) -> Self::Raw

Encode this type as raw big-endian bytes

fn from_raw(raw: Self::Raw) -> Self

Create an instance of this type from raw big-endian bytes

fn read(slice: &[u8]) -> Option<Self>

Attempt to read a scalar from a slice.

impl Copy for TupleIndex

impl Eq for TupleIndex

impl StructuralPartialEq for TupleIndex