Struct HheaExtended 

pub struct HheaExtended<'a> {
    data: TableDataRef<'a, HheaExtendedFixedHeader>,
}

HHEA header table (ISO/IEC 14496-22:2026, 5.1.10).

Fields

data: TableDataRef<'a, HheaExtendedFixedHeader>

Implementations

impl<'a> HheaExtended<'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 version(&self) -> MajorMinor

pub fn ascender(&self) -> FWord

pub fn descender(&self) -> FWord

pub fn line_gap(&self) -> FWord

pub fn advance_width_max(&self) -> UfWord

pub fn min_left_side_bearing(&self) -> FWord

pub fn min_right_side_bearing(&self) -> FWord

pub fn x_max_extent(&self) -> FWord

pub fn caret_slope_rise(&self) -> i16

pub fn caret_slope_run(&self) -> i16

pub fn caret_offset(&self) -> i16

pub fn metric_data_format(&self) -> i16

pub fn number_of_h_metrics(&self) -> u32

Number of long metric records in HMTX.

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

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

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

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

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

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

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

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

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

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

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

pub fn reserved1_byte_range(&self) -> Range<usize>

pub fn reserved2_byte_range(&self) -> Range<usize>

pub fn reserved3_byte_range(&self) -> Range<usize>

pub fn reserved4_byte_range(&self) -> Range<usize>

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

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

Trait Implementations

impl<'a> Clone for HheaExtended<'a>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for HheaExtended<'_>

fn default() -> Self

Returns the “default value” for a type.

impl<'a> FontRead<'a> for HheaExtended<'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 HheaExtended<'a>

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

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

impl ReadArgs for HheaExtended<'_>

type Args = ()

impl TopLevelTable for HheaExtended<'_>

const TAG: Tag

HHEA