Struct Hvar 

pub struct Hvar<'a> {
    data: FontData<'a>,
}

The HVAR (Horizontal Metrics Variations) table

Fields

data: FontData<'a>

Implementations

impl<'a> Hvar<'a>

pub const MIN_SIZE: usize

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) -> &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 version(&self) -> MajorMinor

Major version number of the horizontal metrics variations table — set to 1. Minor version number of the horizontal metrics variations table — set to 0.

pub fn item_variation_store_offset(&self) -> Offset32

Offset in bytes from the start of this table to the item variation store table.

pub fn item_variation_store(&self) -> Result<ItemVariationStore<'a>, ReadError>

Attempt to resolve item_variation_store_offset.

pub fn advance_width_mapping_offset(&self) -> Nullable<Offset32>

Offset in bytes from the start of this table to the delta-set index mapping for advance widths (may be NULL).

pub fn advance_width_mapping( &self, ) -> Option<Result<DeltaSetIndexMap<'a>, ReadError>>

Attempt to resolve advance_width_mapping_offset.

pub fn lsb_mapping_offset(&self) -> Nullable<Offset32>

Offset in bytes from the start of this table to the delta-set index mapping for left side bearings (may be NULL).

pub fn lsb_mapping(&self) -> Option<Result<DeltaSetIndexMap<'a>, ReadError>>

Attempt to resolve lsb_mapping_offset.

pub fn rsb_mapping_offset(&self) -> Nullable<Offset32>

Offset in bytes from the start of this table to the delta-set index mapping for right side bearings (may be NULL).

pub fn rsb_mapping(&self) -> Option<Result<DeltaSetIndexMap<'a>, ReadError>>

Attempt to resolve rsb_mapping_offset.

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

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

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

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

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

impl Hvar<'_>

pub fn advance_width_delta( &self, glyph_id: GlyphId, coords: &[F2Dot14], ) -> Result<Fixed, ReadError>

Returns the advance width delta for the specified glyph identifier and normalized variation coordinates.

pub fn lsb_delta( &self, glyph_id: GlyphId, coords: &[F2Dot14], ) -> Result<Fixed, ReadError>

Returns the left side bearing delta for the specified glyph identifier and normalized variation coordinates.

pub fn rsb_delta( &self, glyph_id: GlyphId, coords: &[F2Dot14], ) -> Result<Fixed, ReadError>

Returns the left side bearing delta for the specified glyph identifier and normalized variation coordinates.

Trait Implementations

impl<'a> Clone for Hvar<'a>

fn clone(&self) -> Hvar<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> FontRead<'a> for Hvar<'a>

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

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

impl<'a> MinByteRange<'a> for Hvar<'a>

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

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

impl TopLevelTable for Hvar<'_>

const TAG: Tag

HVAR