(***********************************************************************)
(*                                                                     *)
(*                 MLTk, Tcl/Tk interface of OCaml                     *)
(*                                                                     *)
(*    Francois Rouaix, Francois Pessaux, Jun Furuse and Pierre Weis    *)
(*               projet Cristal, INRIA Rocquencourt                    *)
(*            Jacques Garrigue, Kyoto University RIMS                  *)
(*                                                                     *)
(*  Copyright 2002 Institut National de Recherche en Informatique et   *)
(*  en Automatique and Kyoto University.  All rights reserved.         *)
(*  This file is distributed under the terms of the GNU Library        *)
(*  General Public License, with the special exception on linking      *)
(*  described in file LICENSE found in the OCaml source tree.          *)
(*                                                                     *)
(***********************************************************************)
open Camltk

(*
 * Progress indicators
 *)
let okcolor = NamedColor "#3cb371"
and kocolor = NamedColor "#dc5c5c"


let new_vertical parent w h =
  let c = Canvas.create_named parent "fillbox"
            [Width (Pixels w); Height (Pixels h); BorderWidth (Pixels 1);
             Relief Sunken]
  in
  let i = Canvas.create_rectangle c (Pixels 0) (Pixels 0) (Pixels w) (Pixels 0)
            [FillColor okcolor; Outline okcolor]
  in
    c, (function
           0 -> Canvas.configure_rectangle c i [FillColor okcolor;
                                                Outline okcolor];
                Canvas.coords_set c i [Pixels 0; Pixels 0;
                                        Pixels w; Pixels 0]
         | -1 -> Canvas.configure_rectangle c i [FillColor kocolor;
                                                 Outline kocolor]
         | n ->
             let percent = if n > 100 then 100 else n in
             let hf = percent*h/100 in
               Canvas.coords_set c i [Pixels 0; Pixels 0;
                                       Pixels w; Pixels hf])

let new_horizontal parent w h =
  let c = Canvas.create_named parent "fillbox"
            [Width (Pixels w); Height (Pixels h); BorderWidth (Pixels 1);
             Relief Sunken]
  in
  let i = Canvas.create_rectangle c (Pixels 0) (Pixels 0) (Pixels 0) (Pixels h)
            [FillColor okcolor; Outline okcolor]
  in
    c, (function
           0 -> Canvas.configure_rectangle c i [FillColor okcolor;
                                                Outline okcolor];
                Canvas.coords_set c i [Pixels 0; Pixels 0;
                                        Pixels 0; Pixels h]
         | -1 -> Canvas.configure_rectangle c i [FillColor kocolor;
                                                 Outline kocolor]
         | n ->
             let percent = if n > 100 then 100 else n in
             let wf = percent*w/100 in
               Canvas.coords_set c i [Pixels 0; Pixels 0;
                                       Pixels wf; Pixels h])