helm/matita/matitaMathView.ml

   1 (* Copyright (C) 2000-2002, HELM Team.
   2  *
   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.
   6  *
   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.
  11  *
  12  * HELM is distributed in the hope that it will be useful,
  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.
  16  *
  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,
  20  * MA  02111-1307, USA.
  21  *
  22  * For details, see the HELM World-Wide-Web page,
  23  * http://cs.unibo.it/helm/.
  24  *)
  25
  26 (***************************************************************************)
  27 (*                                                                         *)
  28 (*                             PROJECT HELM                                *)
  29 (*                                                                         *)
  30 (*                  29/01/2003 Claudio Sacerdoti Coen                      *)
  31 (*                                                                         *)
  32 (*                                                                         *)
  33 (***************************************************************************)
  34
  35 open MatitaTypes
  36
  37 (* List utility functions *)
  38 exception Skip;;
  39
  40 let list_map_fail f =
  41  let rec aux =
  42   function
  43      [] -> []
  44    | he::tl ->
  45       try
  46        let he' = f he in
  47         he'::(aux tl)
  48       with Skip ->
  49        (aux tl)
  50  in
  51   aux
  52 ;;
  53 (* End of the list utility functions *)
  54
  55 class sequent_viewer ~(mml_of_cic_sequent:mml_of_cic_sequent) obj =
  56  object(self)
  57
  58   inherit GMathViewAux.multi_selection_math_view obj
  59
  60   val mutable current_infos = None
  61
  62   method get_selected_terms =
  63    let selections = self#get_selections in
  64     list_map_fail
  65      (function node ->
  66        let xpath =
  67         ((node : Gdome.element)#getAttributeNS
  68           ~namespaceURI:Misc.helmns
  69           ~localName:(Gdome.domString "xref"))#to_string
  70        in
  71         if xpath = "" then assert false (* "ERROR: No xref found!!!" *)
  72         else
  73          match current_infos with
  74             Some (ids_to_terms,_,_) ->
  75              let id = xpath in
  76               (try
  77                 Hashtbl.find ids_to_terms id
  78                with _ -> raise Skip)
  79           | None -> assert false (* "ERROR: No current term!!!" *)
  80      ) selections
  81
  82   method get_selected_hypotheses =
  83    let selections = self#get_selections in
  84     list_map_fail
  85      (function node ->
  86        let xpath =
  87         ((node : Gdome.element)#getAttributeNS
  88           ~namespaceURI:Misc.helmns
  89           ~localName:(Gdome.domString "xref"))#to_string
  90        in
  91         if xpath = "" then assert false (* "ERROR: No xref found!!!" *)
  92         else
  93          match current_infos with
  94             Some (_,_,ids_to_hypotheses) ->
  95              let id = xpath in
  96               (try
  97                 Hashtbl.find ids_to_hypotheses id
  98                with _ -> raise Skip)
  99           | None -> assert false (* "ERROR: No current term!!!" *)
 100      ) selections
 101
 102   method load_sequent metasenv sequent =
 103    let sequent_mml,(ids_to_terms,ids_to_father_ids,ids_to_hypotheses) =
 104      mml_of_cic_sequent metasenv sequent
 105    in
 106     self#load_root ~root:sequent_mml#get_documentElement ;
 107      current_infos <-
 108       Some (ids_to_terms,ids_to_father_ids,ids_to_hypotheses)
 109  end
 110 ;;
 111
 112 class proof_viewer ~(mml_of_cic_object:mml_of_cic_object) obj =
 113  object(self)
 114
 115   inherit GMathViewAux.single_selection_math_view obj
 116
 117   val mutable current_infos = None
 118   val mutable current_mml = None
 119
 120   method load_proof uri currentproof =
 121     let
 122       (acic,ids_to_terms,ids_to_father_ids,ids_to_inner_sorts,
 123        ids_to_inner_types,ids_to_conjectures,ids_to_hypotheses)
 124       = Cic2acic.acic_object_of_cic_object currentproof
 125     in
 126     let mml =
 127       mml_of_cic_object
 128         ~explode_all:true uri acic ids_to_inner_sorts ids_to_inner_types
 129     in
 130     current_infos <-
 131       Some
 132        (ids_to_terms,ids_to_father_ids,ids_to_conjectures,ids_to_hypotheses);
 133     (match current_mml with
 134       None ->
 135         self#load_root ~root:mml#get_documentElement ;
 136         current_mml <- Some mml
 137     | Some current_mml' ->
 138         self#freeze ;
 139         XmlDiff.update_dom ~from:current_mml' mml ;
 140         self#thaw);
 141     (acic, ids_to_inner_types, ids_to_inner_sorts)
 142   end
 143
 144  (** constructors *)
 145
 146 let sequent_viewer ~(mml_of_cic_sequent: mml_of_cic_sequent) =
 147   GtkBase.Widget.size_params
 148     ~cont:(OgtkMathViewProps.pack_return (fun p ->
 149       OgtkMathViewProps.set_params
 150         (new sequent_viewer ~mml_of_cic_sequent
 151           (GtkMathViewProps.MathView_GMetaDOM.create p))
 152         ?font_size:None ?log_verbosity:None))
 153     ?width:None ?height:None []
 154
 155 let proof_viewer ~(mml_of_cic_object: mml_of_cic_object) =
 156   GtkBase.Widget.size_params
 157     ~cont:(OgtkMathViewProps.pack_return (fun p ->
 158       OgtkMathViewProps.set_params
 159         (new proof_viewer ~mml_of_cic_object
 160           (GtkMathViewProps.MathView_GMetaDOM.create p))
 161         ?font_size:None ?log_verbosity:None))
 162     ?width:None ?height:None []
 163