Type Alias ContentDraw 

pub type ContentDraw = Box<dyn FnMut(&mut Scene, Affine, &mut TextRenderer, &Theme, Rect)>;

A draw callback supplied to DocumentViewport::from_draw. It receives the content→screen Affine already composed with the host transform, so the closure paints in content space and the viewport handles the zoom + pan. The viewport rect is supplied for clipping decisions.

Aliased Type

pub struct ContentDraw(/* private fields */);