Struct Hmtx 

pub struct Hmtx<'a> {
    data: FontData<'a>,
    number_of_h_metrics: u16,
}

The hmtx (Horizontal Metrics) table

Fields

data: FontData<'a>

number_of_h_metrics: u16

Implementations

impl<'a> Hmtx<'a>

pub fn read( data: FontData<'a>, number_of_h_metrics: u16, ) -> Result<Self, ReadError>

A constructor that requires additional arguments.

This type requires some external state in order to be parsed.

impl<'a> Hmtx<'a>

pub const MIN_SIZE: usize = 0

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 h_metrics(&self) -> &'a [LongMetric]

Paired advance width/height and left/top side bearing values for each glyph. Records are indexed by glyph ID.

pub fn left_side_bearings(&self) -> &'a [BigEndian<i16>]

Leading (left/top) side bearings for glyph IDs greater than or equal to numberOfLongMetrics.

pub(crate) fn number_of_h_metrics(&self) -> u16

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

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

impl Hmtx<'_>

pub fn advance(&self, glyph_id: GlyphId) -> Option<u16>

Returns the advance width for the given glyph identifier.

pub fn side_bearing(&self, glyph_id: GlyphId) -> Option<i16>

Returns the left side bearing for the given glyph identifier.

Trait Implementations

impl<'a> Clone for Hmtx<'a>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> FontReadWithArgs<'a> for Hmtx<'a>

fn read_with_args(data: FontData<'a>, args: &u16) -> Result<Self, ReadError>

read an item, using the provided args.

impl<'a> MinByteRange<'a> for Hmtx<'a>

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

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

impl ReadArgs for Hmtx<'_>

type Args = u16

impl TopLevelTable for Hmtx<'_>

const TAG: Tag

hmtx