Struct AtlasTextEngine 

pub struct AtlasTextEngine {
    font: Font,
}

Bitmap atlas text engine. Wraps a Font (M0.15 8×8 bitmap or any future atlas) and lays out a WispText into per-glyph NDC quads.

Fields

font: Font

Implementations

impl AtlasTextEngine

pub fn new(font: Font) -> Self

Build the engine from a font.

pub fn font(&self) -> &Font

Borrow the font (so the renderer can reach the atlas texture).

pub fn layout_concrete(&self, text: &WispText) -> AtlasTextLayout

Layout text into a concrete AtlasTextLayout. The trait version (<Self as WispTextEngine>::layout) boxes this for dyn dispatch; this method preserves the concrete type so the renderer side can read glyphs() directly without downcasting.

Trait Implementations

impl Clone for AtlasTextEngine

fn clone(&self) -> AtlasTextEngine

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AtlasTextEngine

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

Formats the value using the given formatter.

impl WispTextEngine for AtlasTextEngine

fn layout(&self, text: &WispText) -> Box<dyn WispTextLayout>

Lay out text. Backend returns a Box<dyn WispTextLayout> whose concrete type is recognized by the matching renderer.