1 (* Copyright (C) 2000, Luca Padovani <luca.padovani@cs.unibo.it>.
3 * This file is part of lablgtkmathview, the Ocaml binding
4 * for the GtkMathView widget.
6 * lablgtkmathview is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * lablgtkmathview is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with lablgtkmathview; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 * For details, send a mail to the author.
30 exception ErrorLoadingFile of string;;
31 exception ErrorWritingFile of string;;
32 exception ErrorLoadingDOM;;
33 exception NoSelection;;
35 class math_view_signals obj = object
36 inherit GContainer.container_signals obj
38 let module S = GtkSignal in
40 let new_marshaller f x y =
41 MathView.Signals.clicked.S.marshaller
42 (fun e -> f (new Gdome.element e)) x y
44 { S.name = "clicked"; S.classe = `math_view;
45 S.marshaller = new_marshaller }
47 GtkSignal.connect ~sgn:new_clicked obj ~after
49 let module S = GtkSignal in
51 let new_marshaller f x y =
52 MathView.Signals.press_move.S.marshaller
54 let option_element_of_option v =
57 | Some v' -> Some (new Gdome.element v')
59 f (option_element_of_option x) (option_element_of_option y)) x y
61 { S.name = "press_move"; S.classe = `math_view;
62 S.marshaller = new_marshaller }
64 GtkSignal.connect ~sgn:new_press_move obj ~after
65 method element_changed =
66 let module S = GtkSignal in
67 let new_element_changed =
68 let new_marshaller f x y =
69 MathView.Signals.element_changed.S.marshaller
70 (function None -> f None | Some e -> f (Some (new Gdome.element e))) x y
72 { S.name = "element_changed"; S.classe = `math_view;
73 S.marshaller = new_marshaller }
75 GtkSignal.connect ~sgn:new_element_changed obj ~after
78 class math_view_skel obj = object
79 inherit GContainer.container (obj : Gtk_mathview.math_view obj)
80 method freeze = MathView.freeze obj
81 method thaw = MathView.thaw obj
82 method load_uri ~filename =
83 if not (MathView.load_uri obj ~filename) then raise (ErrorLoadingFile filename)
84 method load_doc ~dom =
85 if not (MathView.load_doc obj ~dom:((dom : Gdome.document)#as_Document)) then
87 method unload = MathView.unload obj
88 method select element = MathView.select obj ((element : Gdome.element)#as_Element)
89 method unselect element = MathView.unselect obj ((element : Gdome.element)#as_Element)
90 method is_selected element = MathView.is_selected obj ((element : Gdome.element)#as_Element)
91 method get_width = MathView.get_width obj
92 method get_height = MathView.get_height obj
93 method get_top = MathView.get_top obj
94 method set_top = MathView.set_top obj
95 method set_adjustments =
97 MathView.set_adjustments obj (GData.as_adjustment adj1)
98 (GData.as_adjustment adj2)
99 method get_hadjustment = new GData.adjustment (MathView.get_hadjustment obj)
100 method get_vadjustment = new GData.adjustment (MathView.get_vadjustment obj)
101 method get_buffer = MathView.get_buffer obj
102 method get_frame = new GBin.frame (MathView.get_frame obj)
103 method set_font_size = MathView.set_font_size obj
104 method get_font_size = MathView.get_font_size obj
105 method set_anti_aliasing = MathView.set_anti_aliasing obj
106 method get_anti_aliasing = MathView.get_anti_aliasing obj
107 method set_transparency = MathView.set_transparency obj
108 method get_transparency = MathView.get_transparency obj
109 method set_log_verbosity = MathView.set_log_verbosity obj
110 method get_log_verbosity = MathView.get_log_verbosity obj
111 method export_to_postscript
112 ?(width = 595) ?(height = 822) ?(x_margin = 72) ?(y_margin = 72)
113 ?(disable_colors = false) ~filename () =
114 let result = MathView.export_to_postscript obj
115 ~width ~height ~x_margin ~y_margin ~disable_colors ~filename
117 if not result then raise (ErrorWritingFile filename)
118 method get_font_manager_type = MathView.get_font_manager_type obj
119 method set_font_manager_type ~fm_type = MathView.set_font_manager_type obj ~fm_type
122 class math_view obj = object
123 inherit math_view_skel (obj : Gtk_mathview.math_view obj)
124 method connect = new math_view_signals obj
127 let math_view ?adjustmenth ?adjustmentv ?font_size ?font_manager ?border_width
128 ?width ?height ?packing ?show () =
131 ?adjustmenth:(may_map ~f:GData.as_adjustment adjustmenth)
132 ?adjustmentv:(may_map ~f:GData.as_adjustment adjustmentv)
135 Container.set w ?border_width ?width ?height;
136 let mathview = pack_return (new math_view w) ~packing ~show in
139 | Some size -> mathview#set_font_size size
143 match font_manager with
144 | Some manager -> mathview#set_font_manager_type ~fm_type:manager