Trait gfx_glyph::GlyphPositioner

pub trait GlyphPositioner: Hash {
    fn calculate_glyphs<'a, 'font, G>(
        &self, 
        font: &HashMap<FontId, Font<'font>>, 
        section: G
    ) -> Vec<GlyphedSectionText<'font>>
    where
        G: Into<SectionGlyphInfo<'a>>;
    fn bounds_rect<'a, G>(&self, section: G) -> Rect<f32>
    where
        G: Into<SectionGlyphInfo<'a>>;
}

Logic to calculate glyph positioning based on Font and GlyphInfo

Required Methods

fn calculate_glyphs<'a, 'font, G>(
    &self,
    font: &HashMap<FontId, Font<'font>>,
    section: G
) -> Vec<GlyphedSectionText<'font>> where
    G: Into<SectionGlyphInfo<'a>>, 

Calculate a sequence of positioned glyphs to render. Custom implementations should always return the same result when called with the same arguments. If not consider disabling cache_glyph_positioning.

fn bounds_rect<'a, G>(&self, section: G) -> Rect<f32> where
    G: Into<SectionGlyphInfo<'a>>, 

Return a rectangle according to the requested render position and bounds appropriate for the glyph layout.

Implementors

• impl<L: LineBreaker> GlyphPositioner for Layout<L>