Source file draw_notty.ml

open Base
open Hardcaml_waveterm_kernel.Expert
include Draw.In_memory

let to_colour = function
  | Draw.Style.Black -> Notty.A.black
  | Red -> Notty.A.red
  | Green -> Notty.A.green
  | Yellow -> Notty.A.yellow
  | Blue -> Notty.A.blue
  | Magenta -> Notty.A.magenta
  | Cyan -> Notty.A.cyan
  | White -> Notty.A.white
;;

let styling (st : Draw.Style.t) =
  let bg' = to_colour st.bg in
  let fg' = to_colour st.fg in
  if st.bold then Notty.A.(bg bg' ++ fg fg' ++ st bold) else Notty.A.(bg bg' ++ fg fg')
;;

let to_image ctx =
  let cols, rows = cols ctx, rows ctx in
  let bounds = { Draw.r = 0; c = 0; w = cols; h = rows } in
  Notty.I.tabulate cols rows (fun c r ->
    let p, st = get ~ctx ~bounds ~r ~c in
    Notty.I.uchar (styling st) (Uchar.of_scalar_exn p) 1 1)
;;