Struct Font 

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

Shallowly parsed OpenType font.

Implementations

impl<'a> Font<'a>

pub fn opentype(bytes: &'a [u8]) -> Result<Self, ParseError>

Parses bytes as an OpenType font. This is a shortcut for instantiating and reading from an OpenTypeReader.

Errors

Returns parsing errors.

pub fn naming(&self) -> FontNaming<'_>

Returns naming information for this font.

pub fn permissions(&self) -> UsagePermissions

Gets usage permissions for this font.

pub fn created_at(&self) -> LongDateTime

Returns the “created at” timestamp for the font.

pub fn modified_at(&self) -> LongDateTime

Returns the “modified at” timestamp for the font.

pub fn category(&self) -> FontCategory

Returns the basic font category.

pub fn metrics(&self) -> FontMetrics

Returns basic font metrics read from head, hhea and hmtx tables.

pub fn is_variable(&self) -> bool

Checks whether this font is variable. This returns true iff Self::variation_axes() returns Some(_).

pub fn variation_axes(&self) -> Option<&[VariationAxis]>

Returns variation axes for this font.

pub fn contains_char(&self, ch: char) -> bool

Checks whether the font contains a glyph for the specified char.

pub fn char_ranges(&self) -> impl Iterator<Item = RangeInclusive<char>> + '_

Iterates over char ranges covered by this font.

pub fn glyph_count(&self) -> usize

Returns the total glyph count in this font.

pub fn drop_variation(&mut self)

Drops variable font tables if they are present.

pub fn validate(&self) -> Result<Warnings, ParseError>

Performs some in-depth checks regarding font consistency. This involves parsing more font data, hence returning a Result.

Errors

Returns parsing errors if any are encountered during additional parsing.

pub fn subset(&self, chars: &BTreeSet<char>) -> Result<Self, ParseError>

Subsets this font by retaining only specified chars.

Errors

This operation will parse more font data, so it may return parsing errors.

impl Font<'_>

pub fn to_opentype(&self) -> Vec<u8>

Serializes this subset to the OpenType format.

pub fn to_woff2(&self) -> Vec<u8>

Available on crate feature woff2 only.

Serializes this subset to the WOFF2 format.

Trait Implementations

impl<'a> Clone for Font<'a>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Font<'a>

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

Formats the value using the given formatter.