Trait Font

pub trait Font {
    // Required methods
    fn is_empty_fallback(&self) -> bool;
    fn renderer_id(
        &self,
        renderer: &ViewRenderer,
        synthesis: FontSynthesis,
    ) -> FontId;
}

A text font.

This trait is an interface for the renderer into the font API used in the application.

Required Methods

fn is_empty_fallback(&self) -> bool

Gets if the font is the fallback that does not have any glyph.

fn renderer_id( &self, renderer: &ViewRenderer, synthesis: FontSynthesis, ) -> FontId

Gets the instance key in the renderer namespace.

The font configuration must be provided by self, except the synthesis that is used in the font instance.

Implementors

impl Font for Font