Trait Shaper 

pub trait Shaper: Send + Sync {
    // Required methods
    fn name(&self) -> &'static str;
    fn shape(
        &self,
        text: &str,
        font: Arc<dyn FontRef>,
        params: &ShapingParams,
    ) -> Result<ShapingResult>;

    // Provided methods
    fn supports_script(&self, _script: &str) -> bool { ... }
    fn clear_cache(&self) { ... }
}

Where characters learn their positions

Text shaping is where script rules, font features, and character clusters collide to produce perfectly positioned glyphs ready for rendering.

Required Methods

fn name(&self) -> &'static str

Identify yourself in logs and error messages

fn shape( &self, text: &str, font: Arc<dyn FontRef>, params: &ShapingParams, ) -> Result<ShapingResult>

Transform characters into positioned glyphs

Provided Methods

fn supports_script(&self, _script: &str) -> bool

Can you handle this script?

Returns false by default - implementations should explicitly declare support.

fn clear_cache(&self)

Flush any cached shaping data

Implementors