Enum write_fonts::tables::gpos::ExtensionSubtable

pub enum ExtensionSubtable {
    Single(ExtensionPosFormat1<SinglePos>),
    Pair(ExtensionPosFormat1<PairPos>),
    Cursive(ExtensionPosFormat1<CursivePosFormat1>),
    MarkToBase(ExtensionPosFormat1<MarkBasePosFormat1>),
    MarkToLig(ExtensionPosFormat1<MarkLigPosFormat1>),
    MarkToMark(ExtensionPosFormat1<MarkMarkPosFormat1>),
    Contextual(ExtensionPosFormat1<PositionSequenceContext>),
    ChainContextual(ExtensionPosFormat1<PositionChainContext>),
}

A GPOS Extension Positioning subtable

Variants

Single(ExtensionPosFormat1<SinglePos>)

Pair(ExtensionPosFormat1<PairPos>)

Cursive(ExtensionPosFormat1<CursivePosFormat1>)

MarkToBase(ExtensionPosFormat1<MarkBasePosFormat1>)

MarkToLig(ExtensionPosFormat1<MarkLigPosFormat1>)

MarkToMark(ExtensionPosFormat1<MarkMarkPosFormat1>)

Contextual(ExtensionPosFormat1<PositionSequenceContext>)

ChainContextual(ExtensionPosFormat1<PositionChainContext>)

Trait Implementations

impl Clone for ExtensionSubtable

fn clone(&self) -> ExtensionSubtable

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExtensionSubtable

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

Formats the value using the given formatter.

impl Default for ExtensionSubtable

fn default() -> Self

Returns the “default value” for a type.

impl FontWrite for ExtensionSubtable

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

Write our data and information about offsets into this TableWriter.

impl FromObjRef<ExtensionSubtable<'_>> for ExtensionSubtable

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

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

impl FromTableRef<ExtensionSubtable<'_>> for ExtensionSubtable

fn from_table_ref(from: &T) -> Self

impl LookupType for ExtensionSubtable

const TYPE: u16 = 9u16

The lookup type of this layout subtable.

impl Validate for ExtensionSubtable

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.