1 (* Copyright (C) 2000-2002, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://cs.unibo.it/helm/.
26 (******************************************************************************)
30 (* Claudio Sacerdoti Coen <sacerdot@cs.unibo.it> *)
34 (******************************************************************************)
38 (* A WIDGET TO ENTER CIC TERMS *)
40 class type term_editor =
42 method coerce : GObj.widget
43 (* get_as_string returns the unquoted string *)
44 method get_as_string : string
45 method get_metasenv_and_term :
46 context:Cic.context ->
47 metasenv:Cic.metasenv -> Cic.metasenv * Cic.term
49 (* The input of set_term is unquoted *)
50 method set_term : string -> unit
51 method environment : DisambiguatingParser.Environment.t ref
54 module Make(C:Disambiguate_types.Callbacks) =
57 module Disambiguate' = DisambiguatingParser.Make(C);;
59 class term_editor_impl mqi_handle ?packing ?width ?height
60 ?isnotempty_callback ?share_environment_with () : term_editor
63 match share_environment_with with
64 None -> ref DisambiguatingParser.Environment.empty
65 | Some obj -> obj#environment
67 let input = GText.view ~editable:true ?width ?height ?packing () in
69 match isnotempty_callback with
72 ignore(input#buffer#connect#changed
73 (function () -> callback (input#buffer#char_count > 0)))
77 method coerce = input#coerce
80 input#buffer#delete input#buffer#start_iter input#buffer#end_iter
81 (* CSC: txt is now a string, but should be of type Cic.term *)
85 ignore (input#buffer#insert txt)
87 (* CSC: this method should disappear *)
88 (* get_as_string returns the unquoted string *)
89 method get_as_string = input#buffer#get_text ()
91 method get_metasenv_and_term ~context ~metasenv =
99 let environment',metasenv,expr =
100 Disambiguate'.disambiguate_term mqi_handle context metasenv
101 (input#buffer#get_text ()) !environment
103 environment := environment';
106 method environment = environment
109 let term_editor = new term_editor_impl