Struct TrackTableEntry

#[repr(C, packed(1))]
pub struct TrackTableEntry {
    pub track: BigEndian<Fixed>,
    pub name_index: BigEndian<NameId>,
    pub offset: BigEndian<u16>,
}

Single entry in a tracking table.

Fields

track: BigEndian<Fixed>

Track value for this record.

name_index: BigEndian<NameId>

The ‘name’ table index for this track (a short word or phrase like "loose" or "very tight"). NameIndex has a value greater than 255 and less than 32768.

offset: BigEndian<u16>

Offset from the start of the tracking table to per-size tracking values for this track.

Implementations

impl TrackTableEntry

pub fn track(&self) -> Fixed

Track value for this record.

pub fn name_index(&self) -> NameId

The ‘name’ table index for this track (a short word or phrase like "loose" or "very tight"). NameIndex has a value greater than 255 and less than 32768.

pub fn offset(&self) -> u16

Offset from the start of the tracking table to per-size tracking values for this track.

impl TrackTableEntry

pub fn per_size_values<'a>( &self, offset_data: FontData<'a>, n_sizes: u16, ) -> Result<&'a [BigEndian<i16>], ReadError>

Returns the list of per-size tracking values for this entry.

The offset_data parameter comes from the Trak table and n_sizes parameter comes from the parent TrackData table.

Trait Implementations

impl Clone for TrackTableEntry

fn clone(&self) -> TrackTableEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TrackTableEntry

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

Formats the value using the given formatter.

impl FixedSize for TrackTableEntry

const RAW_BYTE_LEN: usize = 8usize

The raw size of this type, in bytes.

impl Hash for TrackTableEntry

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 TrackTableEntry

fn cmp(&self, other: &TrackTableEntry) -> 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,

Restrict a value to a certain interval.

impl PartialEq for TrackTableEntry

fn eq(&self, other: &TrackTableEntry) -> 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 TrackTableEntry

fn partial_cmp(&self, other: &TrackTableEntry) -> 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 Zeroable for TrackTableEntry

fn zeroed() -> Self

Calls zeroed.

impl AnyBitPattern for TrackTableEntry

impl Copy for TrackTableEntry

impl Eq for TrackTableEntry

impl StructuralPartialEq for TrackTableEntry