open Gaux
open Gtk
open Gtk_mathview
open GtkBase
open GtkMathView
open GObj

exception ErrorLoadingFile of string;;

class math_view_signals obj = object
  inherit GContainer.container_signals obj
  method jump = GtkSignal.connect ~sgn:MathView.Signals.jump obj ~after
  method clicked = GtkSignal.connect ~sgn:MathView.Signals.clicked obj ~after
end

class math_view obj = object
 inherit GContainer.container (obj : Gtk_mathview.math_view obj)
 method connect = new math_view_signals obj
 method load ~filename =
  if not (MathView.load obj ~filename) then raise (ErrorLoadingFile filename)
 method get_selection = MathView.get_selection obj
 method unload = MathView.unload obj
 method dump = MathView.dump obj
 method get_width = MathView.get_width obj
 method get_height = MathView.get_height obj
 method set_adjustments =
  fun adj1 adj2 ->
   MathView.set_adjustments obj (GData.as_adjustment adj1)
   (GData.as_adjustment adj2)
 method get_hadjustment = new GData.adjustment (MathView.get_hadjustment obj)
 method get_vadjustment = new GData.adjustment (MathView.get_vadjustment obj)
 method get_buffer = MathView.get_buffer obj
 method get_frame = new GBin.frame (MathView.get_frame obj)
 method set_font_size = MathView.set_font_size obj
 (*method get_top = MathView.get_top obj
 method set_top = MathView.set_top obj*)
end

let math_view ?adjustmenth ?adjustmentv ?border_width ?width ?height
 ?packing ?show ()
=
 let w =
   MathView.create
    ?adjustmenth:(may_map ~f:GData.as_adjustment adjustmenth)
    ?adjustmentv:(may_map ~f:GData.as_adjustment adjustmentv)
    ()
 in
  Container.set w ?border_width ?width ?height;
  pack_return (new math_view w) ~packing ~show
;;