Type Alias ItemVariationData

pub type ItemVariationData<'a> = TableRef<'a, ItemVariationDataMarker>;

The ItemVariationData subtable

Aliased Type

struct ItemVariationData<'a> { /* private fields */ }

Implementations

impl<'a> ItemVariationData<'a>

pub fn item_count(&self) -> u16

The number of delta sets for distinct items.

pub fn word_delta_count(&self) -> u16

A packed field: the high bit is a flag—see details below.

pub fn region_index_count(&self) -> u16

The number of variation regions referenced.

pub fn region_indexes(&self) -> &'a [BigEndian<u16>]

Array of indices into the variation region list for the regions referenced by this item variation data table.

pub fn delta_sets(&self) -> &'a [u8]

Delta-set rows.

impl<'a> ItemVariationData<'a>

pub fn delta_set( &self, inner_index: u16, ) -> impl Iterator<Item = i32> + 'a + Clone

Returns an iterator over the per-region delta values for the specified inner index.

impl<'a, T> TableRef<'a, T>

pub fn resolve_offset<O: Offset, R: FontRead<'a>>( &self, offset: O, ) -> Result<R, ReadError>

Resolve the provided offset from the start of this table.

pub fn offset_data(&self) -> FontData<'a>

Return a reference to this table’s raw data.

We use this in the compile crate to resolve offsets.

pub fn shape(&self) -> &T

Return a reference to the table’s ‘Shape’ struct.

This is a low level implementation detail, but it can be useful in some cases where you want to know things about a table’s layout, such as the byte offsets of specific fields.

Trait Implementations

impl<'a> FontRead<'a> for ItemVariationData<'a>

fn read(data: FontData<'a>) -> Result<Self, ReadError>

Read an instance of Self from the provided data, performing validation.

impl<'a, T: Clone> Clone for TableRef<'a, T>

fn clone(&self) -> TableRef<'a, T>

Returns a copy of the value.

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

Performs copy-assignment from source.