Struct MathVariants 

pub struct MathVariants<'a> { /* private fields */ }

MathVariants

Implementations

impl<'a> MathVariants<'a>

pub const MIN_SIZE: usize

pub fn resolve_offset<O: Offset, R: FontRead<'a, Args = ()>>( &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) -> &Self

👎Deprecated:

just use the base type directly

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.

pub fn min_connector_overlap(&self) -> UfWord

Minimum overlap of connecting glyphs during glyph construction, in design units.

pub fn vert_glyph_coverage_offset(&self) -> Nullable<Offset16>

Offset to the Coverage table for shapes growing in the vertical direction, from the beginning of the MathVariants table. May be NULL.

pub fn vert_glyph_coverage( &self, ) -> Option<Result<CoverageTable<'a>, ReadError>>

Attempt to resolve vert_glyph_coverage_offset.

pub fn horiz_glyph_coverage_offset(&self) -> Nullable<Offset16>

Offset to the Coverage table for shapes growing in the horizontal direction, from the beginning of the MathVariants table. May be NULL.

pub fn horiz_glyph_coverage( &self, ) -> Option<Result<CoverageTable<'a>, ReadError>>

Attempt to resolve horiz_glyph_coverage_offset.

pub fn vert_glyph_count(&self) -> u16

Number of glyphs for which information is provided for vertically growing variants. Must be the same as the number of glyph IDs referenced in the vertical Coverage table.

pub fn horiz_glyph_count(&self) -> u16

Number of glyphs for which information is provided for horizontally growing variants. Must be the same as the number of glyph IDs referenced in the horizontal Coverage table.

pub fn vert_glyph_construction_offsets(&self) -> &'a [BigEndian<Offset16>]

Array of offsets to MathGlyphConstruction tables, from the beginning of the MathVariants table, for shapes growing in the vertical direction.

pub fn vert_glyph_constructions( &self, ) -> ArrayOfOffsets<'a, MathGlyphConstruction<'a>, Offset16>

A dynamically resolving wrapper for vert_glyph_construction_offsets.

pub fn horiz_glyph_construction_offsets(&self) -> &'a [BigEndian<Offset16>]

Array of offsets to MathGlyphConstruction tables, from the beginning of the MathVariants table, for shapes growing in the horizontal direction.

pub fn horiz_glyph_constructions( &self, ) -> ArrayOfOffsets<'a, MathGlyphConstruction<'a>, Offset16>

A dynamically resolving wrapper for horiz_glyph_construction_offsets.

pub fn min_connector_overlap_byte_range(&self) -> Range<usize>

pub fn vert_glyph_coverage_offset_byte_range(&self) -> Range<usize>

pub fn horiz_glyph_coverage_offset_byte_range(&self) -> Range<usize>

pub fn vert_glyph_count_byte_range(&self) -> Range<usize>

pub fn horiz_glyph_count_byte_range(&self) -> Range<usize>

pub fn vert_glyph_construction_offsets_byte_range(&self) -> Range<usize>

pub fn horiz_glyph_construction_offsets_byte_range(&self) -> Range<usize>

impl<'a> MathVariants<'a>

pub fn glyph_construction( &self, glyph: GlyphId, axis: StretchAxis, ) -> Option<MathGlyphConstruction<'a>>

How a glyph is stretched along an axis, or None where the table does not stretch it that way.

Trait Implementations

impl<'a> Clone for MathVariants<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for MathVariants<'_>

fn default() -> Self

Returns the “default value” for a type.

impl<'a> FontRead<'a> for MathVariants<'a>

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

Read an item, performing validation.

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

where Self: FontRead<'a, Args = ()>,

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

impl<'a> MinByteRange<'a> for MathVariants<'a>

fn min_byte_range(&self) -> Range<usize>

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

impl ReadArgs for MathVariants<'_>

type Args = ()