Struct harfbuzz_rs::GlyphFlags

pub struct GlyphFlags(pub hb_glyph_flags_t);

A set of flags that may be set during shaping on each glyph.

Implementations

impl GlyphFlags

pub fn unsafe_to_break(&self) -> bool

If true, indicates that if input text is broken at the beginning of the cluster this glyph is part of, then both sides need to be re-shaped, as the result might be different. On the flip side, it means that when this function returns false, then it's safe to break the glyph-run at the beginning of this cluster, and the two sides represent the exact same result one would get if breaking input text at the beginning of this cluster and shaping the two sides separately. This can be used to optimize paragraph layout, by avoiding re-shaping of each line after line-breaking, or limiting the reshaping to a small piece around the breaking point only.

Trait Implementations

impl Clone for GlyphFlags

fn clone(&self) -> GlyphFlags

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for GlyphFlags

impl Debug for GlyphFlags

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

Formats the value using the given formatter.

impl Eq for GlyphFlags

impl PartialEq<GlyphFlags> for GlyphFlags

fn eq(&self, other: &GlyphFlags) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &GlyphFlags) -> bool

This method tests for !=.

impl StructuralEq for GlyphFlags

impl StructuralPartialEq for GlyphFlags