Function nannou::text::rt_positioned_glyphs

pub fn rt_positioned_glyphs<'a, I>(
    lines_with_rects: I, 
    font: &'a Font, 
    font_size: FontSize, 
    window_size: Vector2, 
    scale_factor: Scalar
) -> impl 'a + Iterator<Item = PositionedGlyph> where
    I: IntoIterator<Item = (&'a str, Rect)>,
    I::IntoIter: 'a, 

Produce the position of each glyph ready for the rusttype glyph cache.

Window dimensions are expected in logical coordinates.