Enum write_fonts::tables::layout::ClassDef

pub enum ClassDef {
    Format1(ClassDefFormat1),
    Format2(ClassDefFormat2),
}

A Class Definition Table

Variants

Format1(ClassDefFormat1)

Format2(ClassDefFormat2)

Implementations

impl ClassDef

pub fn format_1(start_glyph_id: GlyphId, class_value_array: Vec<u16>) -> Self

Construct a new ClassDefFormat1 subtable

pub fn format_2(class_range_records: Vec<ClassRangeRecord>) -> Self

Construct a new ClassDefFormat2 subtable

impl ClassDef

pub fn iter(&self) -> impl Iterator<Item = (GlyphId, u16)> + '_

pub fn get(&self, glyph: GlyphId) -> u16

Return the glyph class for the provided glyph.

Glyphs which have not been assigned a class are given class 0

pub fn class_count(&self) -> u16

Trait Implementations

impl Clone for ClassDef

fn clone(&self) -> ClassDef

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ClassDef

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

Formats the value using the given formatter.

impl Default for ClassDef

fn default() -> Self

Returns the “default value” for a type.

impl<'a> FontRead<'a> for ClassDef

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

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

impl FontWrite for ClassDef

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

Write our data and information about offsets into this TableWriter.

fn table_type(&self) -> TableType

The type of this table.

impl From<ClassDefFormat1> for ClassDef

fn from(src: ClassDefFormat1) -> ClassDef

Converts to this type from the input type.

impl From<ClassDefFormat2> for ClassDef

fn from(src: ClassDefFormat2) -> ClassDef

Converts to this type from the input type.

impl FromIterator<(GlyphId, u16)> for ClassDef

fn from_iter<T: IntoIterator<Item = (GlyphId, u16)>>(iter: T) -> Self

Creates a value from an iterator.

impl FromObjRef<ClassDef<'_>> for ClassDef

fn from_obj_ref(obj: &ClassDef<'_>, _: FontData<'_>) -> Self

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

impl FromTableRef<ClassDef<'_>> for ClassDef

fn from_table_ref(from: &T) -> Self

impl Hash for ClassDef

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 ClassDef

fn cmp(&self, other: &ClassDef) -> 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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for ClassDef

fn eq(&self, other: &ClassDef) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for ClassDef

fn partial_cmp(&self, other: &ClassDef) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Validate for ClassDef

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.

impl Eq for ClassDef

impl StructuralPartialEq for ClassDef