Type Alias StxHeader

pub type StxHeader<'a> = TableRef<'a, StxHeaderMarker>;

Header for an extended state table.

Aliased Type

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

Implementations

impl<'a> StxHeader<'a>

pub fn n_classes(&self) -> u32

Number of classes, which is the number of 16-bit entry indices in a single line in the state array.

pub fn class_table_offset(&self) -> Offset32

Byte offset from the beginning of the state table to the class subtable.

pub fn class_table(&self) -> Result<LookupU16<'a>, ReadError>

Attempt to resolve class_table_offset.

pub fn state_array_offset(&self) -> Offset32

Byte offset from the beginning of the state table to the state array.

pub fn state_array(&self) -> Result<RawWords<'a>, ReadError>

Attempt to resolve state_array_offset.

pub fn entry_table_offset(&self) -> Offset32

Byte offset from the beginning of the state table to the entry subtable.

pub fn entry_table(&self) -> Result<RawBytes<'a>, ReadError>

Attempt to resolve entry_table_offset.

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 StxHeader<'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.