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WispTextLayout

wisp::text

Trait WispTextLayout 

Source 
pub trait WispTextLayout:
    Debug
    + Send
    + Sync {
    // Required method
    fn metrics(&self) -> WispTextMetrics;
}
Expand description

A laid-out piece of text — ready to be rendered.

Backends return their own concrete layout type (e.g. an AtlasLayout of glyph instances, or a Cosmic Text Buffer), hidden behind this trait. The renderer reads metrics() for composition decisions (sizing the RT in M-TEXT.5, fitting captions in M-TEXT.9) and downcasts to the backend type via the engine/renderer pair.

Required Methods§

Source

fn metrics(&self) -> WispTextMetrics

Per-layout metrics.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§