Struct RustybuzzEngine 

pub struct RustybuzzEngine;

HarfBuzz-port shaping engine backed by rustybuzz and rustybuzz::ttf_parser.

Construct once and reuse across many shape calls; the engine is stateless.

Implementations

impl RustybuzzEngine

pub fn new() -> Self

Create a new RustybuzzEngine.

Trait Implementations

impl Clone for RustybuzzEngine

fn clone(&self) -> RustybuzzEngine

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RustybuzzEngine

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

Formats the value using the given formatter.

impl Default for RustybuzzEngine

fn default() -> Self

Returns the “default value” for a type.

impl TextLayoutEngine for RustybuzzEngine

fn shape( &self, req: &ShapeRequest<'_>, provider: &dyn FontProvider, ) -> Result<ZenithGlyphRun, LayoutError>

Shape req.text into a ZenithGlyphRun using fonts from provider.

fn shape_with_fallback( &self, req: &ShapeRequest<'_>, provider: &dyn FontProvider, ) -> Result<FallbackResult, LayoutError>

Shape req.text with per-glyph font fallback, returning a FallbackResult with one ZenithGlyphRun per contiguous sub-run that resolved to a single face, plus any characters that no registered face could cover.