Enum write_fonts::tables::gpos::PositionLookup

pub enum PositionLookup {
    Single(Lookup<SinglePos>),
    Pair(Lookup<PairPos>),
    Cursive(Lookup<CursivePosFormat1>),
    MarkToBase(Lookup<MarkBasePosFormat1>),
    MarkToLig(Lookup<MarkLigPosFormat1>),
    MarkToMark(Lookup<MarkMarkPosFormat1>),
    Contextual(Lookup<PositionSequenceContext>),
    ChainContextual(Lookup<PositionChainContext>),
    Extension(Lookup<ExtensionSubtable>),
}

A GPOS Lookup subtable.

Variants

Single(Lookup<SinglePos>)

Pair(Lookup<PairPos>)

Cursive(Lookup<CursivePosFormat1>)

MarkToBase(Lookup<MarkBasePosFormat1>)

MarkToLig(Lookup<MarkLigPosFormat1>)

MarkToMark(Lookup<MarkMarkPosFormat1>)

Contextual(Lookup<PositionSequenceContext>)

ChainContextual(Lookup<PositionChainContext>)

Extension(Lookup<ExtensionSubtable>)

Trait Implementations

impl Clone for PositionLookup

fn clone(&self) -> PositionLookup

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PositionLookup

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

Formats the value using the given formatter.

impl Default for PositionLookup

fn default() -> Self

Returns the “default value” for a type.

impl<'a> FontRead<'a> for PositionLookup

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

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

impl FontWrite for PositionLookup

fn write_into(&self, writer: &mut TableWriter)

Write our data and information about offsets into this TableWriter.

fn name(&self) -> &'static str

impl FromObjRef<PositionLookup<'_>> for PositionLookup

fn from_obj_ref(from: &PositionLookup<'_>, data: FontData<'_>) -> Self

Convert from to an instance of Self, using the provided data to resolve offsets.

impl FromTableRef<PositionLookup<'_>> for PositionLookup

fn from_table_ref(from: &T) -> Self

impl Validate for PositionLookup

fn validate_impl(&self, ctx: &mut ValidationCtx)

Validate this table.

fn validate(&self) -> Result<(), ValidationReport>

Ensure that this table is well-formed, reporting any errors.