1 (* Copyright (C) 2004-2005, 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.
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.
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://helm.cs.unibo.it/
33 type document_element = string
35 class type cicMathView =
39 method set_font_size: int -> unit
40 method update_font_size: unit
42 method load_root : root:document_element -> unit
43 method remove_selections: unit
44 method set_selection: document_element option -> unit
45 method get_selections: document_element list
47 (** @raise Failure "no selection" *)
48 method strings_of_selection: (MatitaGuiTypes.paste_kind * string) list
50 (** set hyperlink callback. None disable hyperlink handling *)
51 method set_href_callback: (string -> unit) option -> unit
53 (** load a sequent and render it into parent widget *)
55 #ApplyTransformation.status -> NCic.metasenv -> NCic.substitution -> int -> unit
57 method load_nobject: #ApplyTransformation.status -> NCic.obj -> unit
61 let xlink_ns = Gdome.domString "http://www.w3.org/1999/xlink"
62 let helm_ns = Gdome.domString "http://www.cs.unibo.it/helm"
63 let href_ds = Gdome.domString "href"
64 let xref_ds = Gdome.domString "xref"
67 (** Gdome.element of a MathML document whose rendering should be blank. Used
68 * by cicBrowser to render "about:blank" document *)
69 let empty_mathml = lazy ""
71 (** shown for goals closed by side effects *)
72 let closed_goal_mathml = lazy "chiuso per side effect..."
75 let rec has_maction (elt :Gdome.element) =
76 (* fix this comparison *)
77 if elt#get_tagName#to_string = "m:maction" ||
78 elt#get_tagName#to_string = "b:action" then
81 match elt#get_parentNode with
82 | Some node when node#get_nodeType = GdomeNodeTypeT.ELEMENT_NODE ->
83 has_maction (new Gdome.element_of_node node)
87 let hrefs_of_elt elt =
88 let localName = href_ds in
89 if elt#hasAttributeNS ~namespaceURI:xlink_ns ~localName then
91 (elt#getAttributeNS ~namespaceURI:xlink_ns ~localName)#to_string in
92 Some (HExtlib.split text)
96 let id_of_node (node: Gdome.element) =
98 node#getAttributeNS ~namespaceURI:helm_ns ~localName:xref_ds in
100 List.hd (HExtlib.split ~sep:' ' xref_attr#to_string)
101 with Failure _ -> assert false
104 | SelTerm of NCic.term * string option (* term, parent hypothesis (if any) *)
105 | SelHyp of string * NCic.context (* hypothesis, context *)
108 let near (x1, y1) (x2, y2) =
109 let distance = sqrt (((x2 -. x1) ** 2.) +. ((y2 -. y1) ** 2.)) in
113 let name_of_hypothesis = function
114 | Some (Cic.Name s, _) -> s
117 let domImpl = Gdome.domImplementation ()
119 (* ids_to_terms should not be passed here, is just for debugging *)
120 let find_root_id annobj id ids_to_father_ids ids_to_terms ids_to_inner_types =
121 assert false (* MATITA 1.0
122 let find_parent id ids =
124 (* (prerr_endline (sprintf "id %s = %s" id
126 CicPp.ppterm (Hashtbl.find ids_to_terms id)
127 with Not_found -> "NONE"))); *)
128 if List.mem id ids then Some id
131 (try Hashtbl.find ids_to_father_ids id with Not_found -> None)
134 | Some id' -> aux id')
138 let return_father id ids =
139 match find_parent id ids with
140 | None -> assert false
141 | Some parent_id -> parent_id
143 let mk_ids terms = List.map CicUtil.id_of_annterm terms in
147 match types.Cic2acic.annexpected with
148 None -> types.Cic2acic.annsynthesized :: acc
149 | Some ty -> ty :: types.Cic2acic.annsynthesized :: acc
150 ) ids_to_inner_types [] in
152 | Cic.AConstant (_, _, _, Some bo, ty, _, _)
153 | Cic.AVariable (_, _, Some bo, ty, _, _)
154 | Cic.ACurrentProof (_, _, _, _, bo, ty, _, _) ->
155 return_father id (mk_ids (ty :: bo :: inner_types))
156 | Cic.AConstant (_, _, _, None, ty, _, _)
157 | Cic.AVariable (_, _, None, ty, _, _) ->
158 return_father id (mk_ids (ty::inner_types))
159 | Cic.AInductiveDefinition _ ->
160 assert false (* TODO *)
163 (** @return string content of a dom node having a single text child node, e.g.
164 * <m:mi xlink:href="...">bool</m:mi> *)
165 let string_of_dom_node node =
166 match node#get_firstChild with
170 let text = new Gdome.text_of_node node in
171 text#get_data#to_string
172 with GdomeInit.DOMCastException _ -> "")
175 class clickableMathView obj =
176 let text_width = 80 in
178 inherit GSourceView2.source_view obj
180 method strings_of_selection = (assert false : (paste_kind * string) list)
181 method update_font_size =
182 self#misc#modify_font_by_name
183 (sprintf "%s %d" BuildTimeConf.script_font (MatitaMisc.get_current_font_size ()))
184 method set_href_callback = (function _ -> () : (string -> unit) option -> unit)
185 method private set_cic_info = (function _ -> () : unit (*(Cic.conjecture option * (Cic.id, Cic.term) Hashtbl.t *
186 (Cic.id, Cic.hypothesis) Hashtbl.t *
187 (Cic.id, Cic.id option) Hashtbl.t * ('a, 'b) Hashtbl.t * 'c option)*) option -> unit)
188 (* dal widget di Luca *)
189 method load_root ~root =
190 self#buffer#delete ~start:(self#buffer#get_iter `START)
191 ~stop:(self#buffer#get_iter `END);
192 self#buffer#insert root
193 method action_toggle = (fun _ -> assert false : document_element -> bool)
194 method remove_selections = (() : unit)
195 method set_selection = (fun _ -> () : document_element option -> unit)
196 method get_selections = (assert false : document_element list)
197 method set_font_size font_size =
198 self#misc#modify_font_by_name
199 (sprintf "%s %d" BuildTimeConf.script_font font_size)
202 self#set_font_size (MatitaMisc.get_current_font_size ());
203 self#source_buffer#set_language (Some MatitaGtkMisc.matita_lang);
204 self#source_buffer#set_highlight_syntax true;
205 self#set_editable false
208 inherit GMathViewAux.multi_selection_math_view obj
210 val mutable href_callback: (string -> unit) option = None
211 method set_href_callback f = href_callback <- f
213 val mutable _cic_info = None
214 method private set_cic_info info = _cic_info <- info
215 method private cic_info = _cic_info
217 val normal_cursor = Gdk.Cursor.create `LEFT_PTR
218 val href_cursor = Gdk.Cursor.create `HAND2
219 val maction_cursor = Gdk.Cursor.create `QUESTION_ARROW
222 self#set_font_size (MatitaMisc.get_current_font_size ());
223 ignore (self#connect#selection_changed self#choose_selection_cb);
224 ignore (self#event#connect#button_press self#button_press_cb);
225 ignore (self#event#connect#button_release self#button_release_cb);
226 ignore (self#event#connect#selection_clear self#selection_clear_cb);
227 ignore (self#connect#element_over self#element_over_cb);
228 ignore (self#coerce#misc#connect#selection_get self#selection_get_cb)
230 val mutable button_press_x = -1.
231 val mutable button_press_y = -1.
232 val mutable selection_changed = false
233 val mutable href_statusbar_msg:
234 (GMisc.statusbar_context * Gtk.statusbar_message) option = None
235 (* <statusbar ctxt, statusbar msg> *)
237 method private selection_get_cb ctxt ~info ~time =
239 match ctxt#target with
240 | "PATTERN" -> self#text_of_selection `Pattern
241 | "TERM" | _ -> self#text_of_selection `Term
245 | Some s -> ctxt#return s
247 method private text_of_selection fmt =
248 match self#get_selections with
250 | node :: _ -> Some (self#string_of_node ~paste_kind:fmt node)
252 method private selection_clear_cb sel_event =
253 self#remove_selections;
254 (GData.clipboard Gdk.Atom.clipboard)#clear ();
257 method private button_press_cb gdk_button =
258 let button = GdkEvent.Button.button gdk_button in
259 if button = MatitaMisc.left_button then begin
260 button_press_x <- GdkEvent.Button.x gdk_button;
261 button_press_y <- GdkEvent.Button.y gdk_button;
262 selection_changed <- false
263 end else if button = MatitaMisc.right_button then
264 self#popup_contextual_menu
266 (int_of_float (GdkEvent.Button.x gdk_button))
267 (int_of_float (GdkEvent.Button.y gdk_button)))
268 (GdkEvent.Button.time gdk_button);
271 method private element_over_cb (elt_opt, _, _, _) =
272 let win () = self#misc#window in
274 Gdk.Window.set_cursor (win ()) normal_cursor;
275 HExtlib.iter_option (fun (ctxt, msg) -> ctxt#remove msg)
280 if has_maction elt then
281 Gdk.Window.set_cursor (win ()) maction_cursor
283 (match hrefs_of_elt elt with
284 | Some ((_ :: _) as hrefs) ->
285 Gdk.Window.set_cursor (win ()) href_cursor;
286 let msg_text = (* now create statusbar msg and store it *)
288 | [ href ] -> sprintf "Hyperlink to %s" href
289 | _ -> sprintf "Hyperlinks to: %s" (String.concat ", " hrefs) in
290 let ctxt = (get_gui ())#main#statusBar#new_context ~name:"href" in
291 let msg = ctxt#push msg_text in
292 href_statusbar_msg <- Some (ctxt, msg)
293 | _ -> leave_href ())
294 | None -> leave_href ()
296 method private tactic_text_pattern_of_node node =
297 let id = id_of_node node in
298 let cic_info, unsh_sequent = self#get_cic_info id in
299 match self#get_term_by_id cic_info id with
300 | SelTerm (t, father_hyp) ->
301 let sequent = self#sequent_of_id ~paste_kind:`Pattern id in
302 let text = self#string_of_cic_sequent ~output_type:`Pattern sequent in
303 (match father_hyp with
304 | None -> None, [], Some text
305 | Some hyp_name -> None, [ hyp_name, text ], None)
306 | SelHyp (hyp_name, _ctxt) -> None, [ hyp_name, "%" ], None
308 method private tactic_text_of_node node =
309 let id = id_of_node node in
310 let cic_info, unsh_sequent = self#get_cic_info id in
311 match self#get_term_by_id cic_info id with
312 | SelTerm (t, father_hyp) ->
313 let sequent = self#sequent_of_id ~paste_kind:`Term id in
314 let text = self#string_of_cic_sequent ~output_type:`Term sequent in
316 | SelHyp (hyp_name, _ctxt) -> hyp_name
318 (** @return a pattern structure which contains pretty printed terms *)
319 method private tactic_text_pattern_of_selection =
320 match self#get_selections with
321 | [] -> assert false (* this method is invoked only if there's a sel. *)
322 | node :: _ -> self#tactic_text_pattern_of_node node
324 method private popup_contextual_menu element time =
325 let menu = GMenu.menu () in
326 let add_menu_item ?(menu = menu) ?stock ?label () =
327 GMenu.image_menu_item ?stock ?label ~packing:menu#append () in
328 let check = add_menu_item ~label:"Check" () in
329 let reductions_menu_item = GMenu.menu_item ~label:"βδιζ-reduce" () in
330 let tactics_menu_item = GMenu.menu_item ~label:"Apply tactic" () in
331 let hyperlinks_menu_item = GMenu.menu_item ~label:"Hyperlinks" () in
332 menu#append reductions_menu_item;
333 menu#append tactics_menu_item;
334 menu#append hyperlinks_menu_item;
335 let reductions = GMenu.menu () in
336 let tactics = GMenu.menu () in
337 let hyperlinks = GMenu.menu () in
338 reductions_menu_item#set_submenu reductions;
339 tactics_menu_item#set_submenu tactics;
340 hyperlinks_menu_item#set_submenu hyperlinks;
341 let normalize = add_menu_item ~menu:reductions ~label:"Normalize" () in
342 let simplify = add_menu_item ~menu:reductions ~label:"Simplify" () in
343 let whd = add_menu_item ~menu:reductions ~label:"Weak head" () in
345 | None -> hyperlinks_menu_item#misc#set_sensitive false
347 match hrefs_of_elt elt, href_callback with
351 let item = add_menu_item ~menu:hyperlinks ~label:h () in
352 connect_menu_item item (fun () -> f h)) l
353 | _ -> hyperlinks_menu_item#misc#set_sensitive false);
354 menu#append (GMenu.separator_item ());
355 let copy = add_menu_item ~stock:`COPY () in
356 let gui = get_gui () in
357 List.iter (fun item -> item#misc#set_sensitive gui#canCopy)
358 [ copy; check; normalize; simplify; whd ];
359 let reduction_action kind () =
360 let pat = self#tactic_text_pattern_of_selection in
362 let loc = HExtlib.dummy_floc in
364 GrafiteAstPp.pp_executable ~term_pp:(fun s -> s)
365 ~lazy_term_pp:(fun _ -> assert false) ~obj_pp:(fun _ -> assert false)
366 ~map_unicode_to_tex:(Helm_registry.get_bool
367 "matita.paste_unicode_as_tex")
368 (GrafiteAst.Tactic (loc,
369 Some (GrafiteAst.Reduce (loc, kind, pat)),
370 GrafiteAst.Semicolon loc)) in
371 (MatitaScript.current ())#advance ~statement () in
372 connect_menu_item copy gui#copy;
373 connect_menu_item normalize (reduction_action `Normalize);
374 connect_menu_item simplify (reduction_action `Simpl);
375 connect_menu_item whd (reduction_action `Whd);
376 menu#popup ~button:MatitaMisc.right_button ~time
378 method private button_release_cb gdk_button =
379 if GdkEvent.Button.button gdk_button = MatitaMisc.left_button then begin
380 let button_release_x = GdkEvent.Button.x gdk_button in
381 let button_release_y = GdkEvent.Button.y gdk_button in
382 if selection_changed then
384 else (* selection _not_ changed *)
385 if near (button_press_x, button_press_y)
386 (button_release_x, button_release_y)
388 let x = int_of_float button_press_x in
389 let y = int_of_float button_press_y in
390 (match self#get_element_at x y with
393 if has_maction elt then ignore(self#action_toggle elt) else
394 (match hrefs_of_elt elt with
395 | Some hrefs -> self#invoke_href_callback hrefs gdk_button
400 method private invoke_href_callback hrefs gdk_button =
401 let button = GdkEvent.Button.button gdk_button in
402 if button = MatitaMisc.left_button then
403 let time = GdkEvent.Button.time gdk_button in
404 match href_callback with
410 let menu = GMenu.menu () in
414 GMenu.menu_item ~label:uri ~packing:menu#append () in
415 connect_menu_item menu_item
416 (fun () -> try f uri with Not_found -> assert false))
418 menu#popup ~button ~time)
420 method private choose_selection_cb gdome_elt =
421 let set_selection elt =
422 let misc = self#coerce#misc in
423 self#set_selection (Some elt);
424 misc#add_selection_target ~target:"STRING" Gdk.Atom.primary;
425 ignore (misc#grab_selection Gdk.Atom.primary);
428 if (elt#getAttributeNS ~namespaceURI:helm_ns
429 ~localName:xref_ds)#to_string <> ""
434 (match elt#get_parentNode with
435 | None -> assert false
436 | Some p -> aux (new Gdome.element_of_node p))
437 with GdomeInit.DOMCastException _ -> ()
439 (match gdome_elt with
440 | Some elt when (elt#getAttributeNS ~namespaceURI:xlink_ns
441 ~localName:href_ds)#to_string <> "" ->
443 | Some elt -> aux elt
444 | None -> self#set_selection None);
445 selection_changed <- true
447 method update_font_size = self#set_font_size (MatitaMisc.get_current_font_size ())
449 (** find a term by id from stored CIC infos @return either `Hyp if the id
450 * correspond to an hypothesis or `Term (cic, hyp) if the id correspond to a
451 * term. In the latter case hyp is either None (if the term is a subterm of
452 * the sequent conclusion) or Some hyp_name if the term belongs to an
454 method private get_term_by_id cic_info id =
455 let unsh_item, ids_to_terms, ids_to_hypotheses, ids_to_father_ids, _, _ =
457 let rec find_father_hyp id =
458 if Hashtbl.mem ids_to_hypotheses id
459 then Some (name_of_hypothesis (Hashtbl.find ids_to_hypotheses id))
462 try Hashtbl.find ids_to_father_ids id
463 with Not_found -> assert false in
465 | Some id -> find_father_hyp id
469 let term = Hashtbl.find ids_to_terms id in
470 let father_hyp = find_father_hyp id in
471 SelTerm (term, father_hyp)
474 let hyp = Hashtbl.find ids_to_hypotheses id in
476 match unsh_item with Some seq -> seq | None -> assert false in
477 let context' = MatitaMisc.list_tl_at hyp context in
478 SelHyp (name_of_hypothesis hyp, context')
479 with Not_found -> assert false
481 method private find_obj_conclusion id =
482 match self#cic_info with
484 | Some (_, _, _, _, _, None) -> assert false
485 | Some (_, ids_to_terms, _, ids_to_father_ids, ids_to_inner_types, Some annobj) ->
487 find_root_id annobj id ids_to_father_ids ids_to_terms ids_to_inner_types
489 (try Hashtbl.find ids_to_terms id with Not_found -> assert false)
491 method private string_of_node ~(paste_kind:paste_kind) node =
492 if node#hasAttributeNS ~namespaceURI:helm_ns ~localName:xref_ds
494 match paste_kind with
496 let tactic_text_pattern = self#tactic_text_pattern_of_node node in
497 GrafiteAstPp.pp_tactic_pattern
498 ~term_pp:(fun s -> s) ~lazy_term_pp:(fun _ -> assert false)
499 ~map_unicode_to_tex:(Helm_registry.get_bool
500 "matita.paste_unicode_as_tex")
502 | `Term -> self#tactic_text_of_node node
503 else string_of_dom_node node
505 method private string_of_cic_sequent ~output_type cic_sequent =
506 let script = MatitaScript.current () in
508 if script#onGoingProof () then script#proofMetasenv else [] in
509 let map_unicode_to_tex =
510 Helm_registry.get_bool "matita.paste_unicode_as_tex" in
511 ApplyTransformation.txt_of_cic_sequent_conclusion ~map_unicode_to_tex
512 ~output_type text_width metasenv cic_sequent
514 method private pattern_of term father_hyp unsh_sequent =
515 let _, unsh_context, conclusion = unsh_sequent in
517 match father_hyp with
523 | Some (Cic.Name name', Cic.Decl ty)::_ when name' = name -> ty
524 | Some (Cic.Name name', Cic.Def (bo,_))::_ when name' = name-> bo
529 ProofEngineHelpers.pattern_of ~term:where [term]
531 method private get_cic_info id =
532 match self#cic_info with
533 | Some ((Some unsh_sequent, _, _, _, _, _) as info) -> info, unsh_sequent
534 | Some ((None, _, _, _, _, _) as info) ->
535 let t = self#find_obj_conclusion id in
536 info, (~-1, [], t) (* dummy sequent for obj *)
537 | None -> assert false
539 method private sequent_of_id ~(paste_kind:paste_kind) id =
540 let cic_info, unsh_sequent = self#get_cic_info id in
542 match self#get_term_by_id cic_info id with
543 | SelTerm (t, father_hyp) ->
545 IDIOTA: PRIMA SI FA LA LOCATE, POI LA PATTERN_OF. MEGLIO UN'UNICA pattern_of CHE PRENDA IN INPUT UN TERMINE E UN SEQUENTE. PER IL MOMENTO RISOLVO USANDO LA father_hyp PER RITROVARE L'IPOTESI PERDUTA
548 ProofEngineHelpers.locate_in_conjecture t unsh_sequent in
549 (match occurrences with
551 (match paste_kind with
552 | `Term -> ~-1, context, t
553 | `Pattern -> ~-1, [], self#pattern_of t father_hyp unsh_sequent)
555 HLog.error (sprintf "found %d occurrences while 1 was expected"
556 (List.length occurrences));
557 assert false) (* since it uses physical equality *)
558 | SelHyp (_name, context) -> ~-1, context, Cic.Rel 1 in
561 method private string_of_selection ~(paste_kind:paste_kind) =
562 match self#get_selections with
564 | node :: _ -> Some (self#string_of_node ~paste_kind node)
566 (** @return an associative list format -> string with all possible selection
567 * formats. Rationale: in order to convert the selection to TERM or PATTERN
568 * format we need the sequent, the metasenv, ... keeping all of them in a
569 * closure would be more expensive than keeping their already converted
571 method strings_of_selection =
573 let misc = self#coerce#misc in
575 (fun target -> misc#add_selection_target ~target Gdk.Atom.clipboard)
576 [ "TERM"; "PATTERN"; "STRING" ];
577 ignore (misc#grab_selection Gdk.Atom.clipboard);
580 paste_kind, HExtlib.unopt (self#string_of_selection ~paste_kind))
582 with Failure _ -> failwith "no selection"
586 class _cicMathView obj =
588 inherit clickableMathView obj
590 val mutable current_mathml = None
592 method nload_sequent:
593 'status. #ApplyTransformation.status as 'status -> NCic.metasenv ->
594 NCic.substitution -> int -> unit
595 = fun status metasenv subst metano ->
596 let sequent = List.assoc metano metasenv in
598 ApplyTransformation.ntxt_of_cic_sequent
599 ~map_unicode_to_tex:false 80 status metasenv subst (metano,sequent)
601 (* MATITA 1.0 if BuildTimeConf.debug then begin
603 "/tmp/sequent_viewer_" ^ string_of_int (Unix.getuid ()) ^ ".xml" in
604 HLog.debug ("load_sequent: dumping MathML to ./" ^ name);
605 ignore (domImpl#saveDocumentToFile ~name ~doc:mathml ())
607 self#load_root ~root:txt
609 method load_nobject :
610 'status. #ApplyTransformation.status as 'status -> NCic.obj -> unit
612 let txt = ApplyTransformation.ntxt_of_cic_object ~map_unicode_to_tex:false
616 (Some (None, ids_to_terms, ids_to_hypotheses, ids_to_father_ids, ids_to_inner_types, Some annobj));
617 (match current_mathml with
618 | Some current_mathml when use_diff ->
620 XmlDiff.update_dom ~from:current_mathml mathml;
624 (* MATITA1.0 if BuildTimeConf.debug then begin
626 "/tmp/cic_browser_" ^ string_of_int (Unix.getuid ()) ^ ".xml" in
627 HLog.debug ("cic_browser: dumping MathML to ./" ^ name);
628 ignore (domImpl#saveDocumentToFile ~name ~doc:mathml ())
630 self#load_root ~root:txt;
631 (*current_mathml <- Some mathml*)(*)*);
636 let cicMathView (*?auto_indent ?highlight_current_line ?indent_on_tab ?indent_width ?insert_spaces_instead_of_tabs ?right_margin_position ?show_line_marks ?show_line_numbers ?show_right_margin ?smart_home_end ?tab_width ?editable ?cursor_visible ?justification ?wrap_mode ?accepts_tab ?border_width*) ?width ?height ?packing ?show () =
637 ((*SourceView.make_params [] ~cont:(
638 GtkText.View.make_params ~cont:( *)
639 GContainer.pack_container ~create:(fun pl ->
640 let obj = SourceView.new_ () in
641 Gobject.set_params (Gobject.try_cast obj "GtkSourceView") pl;
642 new _cicMathView obj)(*)) ?auto_indent ?highlight_current_line ?indent_on_tab ?indent_width ?insert_spaces_instead_of_tabs ?right_margin_position ?show_line_marks ?show_line_numbers ?show_right_margin ?smart_home_end ?tab_width ?editable ?cursor_visible ?justification ?wrap_mode ?accepts_tab ?border_width*) [] ?width ?height ?packing ?show () :> cicMathView)