(* Copyright (C) 2000, Luca Padovani <luca.padovani@cs.unibo.it>.
 *
 * This file is part of lablgtkmathview, the Ocaml binding
 * for the GtkMathView widget.
 * 
 * lablgtkmathview is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * lablgtkmathview is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with lablgtkmathview; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 * 
 * For details, send a mail to the author.
 *)

open Gtk
open Gtk_mathview
open Tags
open GtkBase
open Gpointer

external gdome_element_of_boxed_option :
 Gpointer.boxed option -> TElement.t =
  "ml_gtk_math_view_gdome_element_of_boxed_option"

external gdome_element_option_of_boxed_option :
 Gpointer.boxed option -> TElement.t option =
  "ml_gtk_math_view_gdome_element_option_of_boxed_option"

module MathView = struct
  exception NoSelection

  let cast w : math_view obj = Object.try_cast w "GtkMathView"
  external create : Gtk.adjustment optobj -> Gtk.adjustment optobj -> 
   math_view obj = "ml_gtk_math_view_new"
  let create ~adjustmenth ~adjustmentv () =
   create (optboxed adjustmenth) (optboxed adjustmentv)
  external freeze : [>`math_view] obj -> unit =
   "ml_gtk_math_view_freeze"
  external thaw : [>`math_view] obj -> unit =
   "ml_gtk_math_view_thaw"
  external load_uri : [>`math_view] obj -> filename:string -> bool =
   "ml_gtk_math_view_load_uri"
  external load_doc : [>`math_view] obj -> dom:[> `Document] GdomeT.t -> bool =
   "ml_gtk_math_view_load_doc"
  external unload : [>`math_view] obj -> unit =
   "ml_gtk_math_view_unload"
  external select :
   [>`math_view] obj -> [> `Element] GdomeT.t -> unit =
   "ml_gtk_math_view_select"
  external unselect :
   [>`math_view] obj -> [> `Element] GdomeT.t -> unit =
   "ml_gtk_math_view_unselect"
  external is_selected :
   [>`math_view] obj -> [> `Element] GdomeT.t -> bool =
   "ml_gtk_math_view_is_selected"
  external get_width : [>`math_view] obj -> int =
   "ml_gtk_math_view_get_width"
  external get_height : [>`math_view] obj -> int =
   "ml_gtk_math_view_get_height"
  external get_top : [>`math_view] obj -> (int * int) =
   "ml_gtk_math_view_get_top"
  external set_top : [>`math_view] obj -> int -> int -> unit =
   "ml_gtk_math_view_set_top"
  external set_adjustments : [>`math_view] obj -> Gtk.adjustment obj -> Gtk.adjustment obj -> unit =
   "ml_gtk_math_view_set_adjustments"
  external get_hadjustment : [>`math_view] obj -> Gtk.adjustment obj =
   "ml_gtk_math_view_get_hadjustment"
  external get_vadjustment : [>`math_view] obj -> Gtk.adjustment obj =
   "ml_gtk_math_view_get_vadjustment"
  external get_buffer : [>`math_view] obj -> Gdk.pixmap =
   "ml_gtk_math_view_get_buffer"
  external get_frame : [>`math_view] obj -> Gtk.frame obj =
   "ml_gtk_math_view_get_frame"
  external set_font_size : [>`math_view] obj -> int -> unit =
   "ml_gtk_math_view_set_font_size"
  external get_font_size : [>`math_view] obj -> int =
   "ml_gtk_math_view_get_font_size"
  external set_anti_aliasing : [>`math_view] obj -> bool -> unit =
   "ml_gtk_math_view_set_anti_aliasing"
  external get_anti_aliasing : [>`math_view] obj -> bool =
   "ml_gtk_math_view_get_anti_aliasing"
  external set_transparency : [>`math_view] obj -> bool -> unit =
   "ml_gtk_math_view_set_transparency"
  external get_transparency : [>`math_view] obj -> bool =
   "ml_gtk_math_view_get_transparency"
  external set_log_verbosity : [>`math_view] obj -> int -> unit =
   "ml_gtk_math_view_set_log_verbosity"
  external get_log_verbosity : [>`math_view] obj -> int =
   "ml_gtk_math_view_get_log_verbosity"
  external export_to_postscript :
   [>`math_view] obj -> width:int -> height:int -> x_margin:int -> y_margin:int -> disable_colors:bool -> filename:string -> bool =
   "ml_gtk_math_view_export_to_postscript_bytecode" "ml_gtk_math_view_export_to_postscript_native"
  external get_font_manager_type : [>`math_view] obj ->
   [`font_manager_gtk | `font_manager_t1] =
   "ml_gtk_math_view_get_font_manager_type"
  external set_font_manager_type : [>`math_view] obj ->
    fm_type:[`font_manager_gtk | `font_manager_t1] -> unit =
   "ml_gtk_math_view_set_font_manager_type"
  
  module Signals = struct
    open GtkSignal

    let clicked : ([>`math_view],_) t =
     let marshal_clicked f _ =
      function
         [GtkArgv.POINTER element] -> f (gdome_element_of_boxed_option element)
       | _ -> invalid_arg "GtkMathView.MathView.Signals.marshal_clicked"
     in
      { name = "clicked"; classe = `math_view; marshaller = marshal_clicked }

    let press_move : ([>`math_view],_) t =
     let marshal_press_move f _ =
      function
         [GtkArgv.POINTER first; GtkArgv.POINTER last] ->
	   f (gdome_element_option_of_boxed_option first)
	     (gdome_element_option_of_boxed_option last)
       | _ -> invalid_arg "GtkMathView.MathView.Signals.marshal_press_move"
     in
      { name = "press_move"; classe = `math_view;
        marshaller = marshal_press_move }

    let element_changed : ([>`math_view],_) t =
     let marshal_element_changed f _ =
      function
         [GtkArgv.POINTER element] -> f (gdome_element_option_of_boxed_option element)
       | _ -> invalid_arg "GtkMathView.MathView.Signals.marshal_element_changed"
     in
      { name = "element_changed"; classe = `math_view;
        marshaller = marshal_element_changed }
  end
end