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 let matita_script_current = ref (fun _ -> assert false);;
34 let register_matita_script_current f = matita_script_current := f;;
36 type document_element = string
38 class type cicMathView =
42 method set_font_size: int -> unit
43 method update_font_size: unit
45 method load_root : root:document_element -> unit
46 method remove_selections: unit
47 method set_selection: document_element option -> unit
48 method get_selections: document_element list
50 (** @raise Failure "no selection" *)
51 method strings_of_selection: (MatitaGuiTypes.paste_kind * string) list
53 (** set hyperlink callback. None disable hyperlink handling *)
54 method set_href_callback: (string -> unit) option -> unit
56 (** load a sequent and render it into parent widget *)
58 #ApplyTransformation.status -> NCic.metasenv -> NCic.substitution -> int -> unit
60 method load_nobject: #ApplyTransformation.status -> NCic.obj -> unit
64 let xlink_ns = Gdome.domString "http://www.w3.org/1999/xlink"
65 let helm_ns = Gdome.domString "http://www.cs.unibo.it/helm"
66 let href_ds = Gdome.domString "href"
67 let xref_ds = Gdome.domString "xref"
70 (** Gdome.element of a MathML document whose rendering should be blank. Used
71 * by cicBrowser to render "about:blank" document *)
72 let empty_mathml = lazy ""
74 (** shown for goals closed by side effects *)
75 let closed_goal_mathml = lazy "chiuso per side effect..."
78 let rec has_maction (elt :Gdome.element) =
79 (* fix this comparison *)
80 if elt#get_tagName#to_string = "m:maction" ||
81 elt#get_tagName#to_string = "b:action" then
84 match elt#get_parentNode with
85 | Some node when node#get_nodeType = GdomeNodeTypeT.ELEMENT_NODE ->
86 has_maction (new Gdome.element_of_node node)
90 let hrefs_of_elt elt =
91 let localName = href_ds in
92 if elt#hasAttributeNS ~namespaceURI:xlink_ns ~localName then
94 (elt#getAttributeNS ~namespaceURI:xlink_ns ~localName)#to_string in
95 Some (HExtlib.split text)
99 let id_of_node (node: Gdome.element) =
101 node#getAttributeNS ~namespaceURI:helm_ns ~localName:xref_ds in
103 List.hd (HExtlib.split ~sep:' ' xref_attr#to_string)
104 with Failure _ -> assert false
107 | SelTerm of NCic.term * string option (* term, parent hypothesis (if any) *)
108 | SelHyp of string * NCic.context (* hypothesis, context *)
111 let near (x1, y1) (x2, y2) =
112 let distance = sqrt (((x2 -. x1) ** 2.) +. ((y2 -. y1) ** 2.)) in
116 let name_of_hypothesis = function
117 | Some (Cic.Name s, _) -> s
120 let domImpl = Gdome.domImplementation ()
122 (* ids_to_terms should not be passed here, is just for debugging *)
123 let find_root_id annobj id ids_to_father_ids ids_to_terms ids_to_inner_types =
124 assert false (* MATITA 1.0
125 let find_parent id ids =
127 (* (prerr_endline (sprintf "id %s = %s" id
129 CicPp.ppterm (Hashtbl.find ids_to_terms id)
130 with Not_found -> "NONE"))); *)
131 if List.mem id ids then Some id
134 (try Hashtbl.find ids_to_father_ids id with Not_found -> None)
137 | Some id' -> aux id')
141 let return_father id ids =
142 match find_parent id ids with
143 | None -> assert false
144 | Some parent_id -> parent_id
146 let mk_ids terms = List.map CicUtil.id_of_annterm terms in
150 match types.Cic2acic.annexpected with
151 None -> types.Cic2acic.annsynthesized :: acc
152 | Some ty -> ty :: types.Cic2acic.annsynthesized :: acc
153 ) ids_to_inner_types [] in
155 | Cic.AConstant (_, _, _, Some bo, ty, _, _)
156 | Cic.AVariable (_, _, Some bo, ty, _, _)
157 | Cic.ACurrentProof (_, _, _, _, bo, ty, _, _) ->
158 return_father id (mk_ids (ty :: bo :: inner_types))
159 | Cic.AConstant (_, _, _, None, ty, _, _)
160 | Cic.AVariable (_, _, None, ty, _, _) ->
161 return_father id (mk_ids (ty::inner_types))
162 | Cic.AInductiveDefinition _ ->
163 assert false (* TODO *)
166 (** @return string content of a dom node having a single text child node, e.g.
167 * <m:mi xlink:href="...">bool</m:mi> *)
168 let string_of_dom_node node =
169 match node#get_firstChild with
173 let text = new Gdome.text_of_node node in
174 text#get_data#to_string
175 with GdomeInit.DOMCastException _ -> "")
178 class clickableMathView obj =
179 let text_width = 80 in
181 inherit GSourceView2.source_view obj
183 method strings_of_selection = (assert false : (paste_kind * string) list)
184 method update_font_size =
185 self#misc#modify_font_by_name
186 (sprintf "%s %d" BuildTimeConf.script_font (MatitaMisc.get_current_font_size ()))
187 method set_href_callback = (function _ -> () : (string -> unit) option -> unit)
188 method private set_cic_info = (function _ -> () : unit (*(Cic.conjecture option * (Cic.id, Cic.term) Hashtbl.t *
189 (Cic.id, Cic.hypothesis) Hashtbl.t *
190 (Cic.id, Cic.id option) Hashtbl.t * ('a, 'b) Hashtbl.t * 'c option)*) option -> unit)
191 (* dal widget di Luca *)
192 method load_root ~root =
193 self#buffer#delete ~start:(self#buffer#get_iter `START)
194 ~stop:(self#buffer#get_iter `END);
195 self#buffer#insert root
196 method action_toggle = (fun _ -> assert false : document_element -> bool)
197 method remove_selections = (() : unit)
198 method set_selection = (fun _ -> () : document_element option -> unit)
199 method get_selections = (assert false : document_element list)
200 method set_font_size font_size =
201 self#misc#modify_font_by_name
202 (sprintf "%s %d" BuildTimeConf.script_font font_size)
205 self#set_font_size (MatitaMisc.get_current_font_size ());
206 self#source_buffer#set_language (Some MatitaGtkMisc.matita_lang);
207 self#source_buffer#set_highlight_syntax true;
208 self#set_editable false
211 inherit GMathViewAux.multi_selection_math_view obj
213 val mutable href_callback: (string -> unit) option = None
214 method set_href_callback f = href_callback <- f
216 val mutable _cic_info = None
217 method private set_cic_info info = _cic_info <- info
218 method private cic_info = _cic_info
220 val normal_cursor = Gdk.Cursor.create `LEFT_PTR
221 val href_cursor = Gdk.Cursor.create `HAND2
222 val maction_cursor = Gdk.Cursor.create `QUESTION_ARROW
225 self#set_font_size (MatitaMisc.get_current_font_size ());
226 ignore (self#connect#selection_changed self#choose_selection_cb);
227 ignore (self#event#connect#button_press self#button_press_cb);
228 ignore (self#event#connect#button_release self#button_release_cb);
229 ignore (self#event#connect#selection_clear self#selection_clear_cb);
230 ignore (self#connect#element_over self#element_over_cb);
231 ignore (self#coerce#misc#connect#selection_get self#selection_get_cb)
233 val mutable button_press_x = -1.
234 val mutable button_press_y = -1.
235 val mutable selection_changed = false
236 val mutable href_statusbar_msg:
237 (GMisc.statusbar_context * Gtk.statusbar_message) option = None
238 (* <statusbar ctxt, statusbar msg> *)
240 method private selection_get_cb ctxt ~info ~time =
242 match ctxt#target with
243 | "PATTERN" -> self#text_of_selection `Pattern
244 | "TERM" | _ -> self#text_of_selection `Term
248 | Some s -> ctxt#return s
250 method private text_of_selection fmt =
251 match self#get_selections with
253 | node :: _ -> Some (self#string_of_node ~paste_kind:fmt node)
255 method private selection_clear_cb sel_event =
256 self#remove_selections;
257 (GData.clipboard Gdk.Atom.clipboard)#clear ();
260 method private button_press_cb gdk_button =
261 let button = GdkEvent.Button.button gdk_button in
262 if button = MatitaMisc.left_button then begin
263 button_press_x <- GdkEvent.Button.x gdk_button;
264 button_press_y <- GdkEvent.Button.y gdk_button;
265 selection_changed <- false
266 end else if button = MatitaMisc.right_button then
267 self#popup_contextual_menu
269 (int_of_float (GdkEvent.Button.x gdk_button))
270 (int_of_float (GdkEvent.Button.y gdk_button)))
271 (GdkEvent.Button.time gdk_button);
274 method private element_over_cb (elt_opt, _, _, _) =
275 let win () = self#misc#window in
277 Gdk.Window.set_cursor (win ()) normal_cursor;
278 HExtlib.iter_option (fun (ctxt, msg) -> ctxt#remove msg)
283 if has_maction elt then
284 Gdk.Window.set_cursor (win ()) maction_cursor
286 (match hrefs_of_elt elt with
287 | Some ((_ :: _) as hrefs) ->
288 Gdk.Window.set_cursor (win ()) href_cursor;
289 let msg_text = (* now create statusbar msg and store it *)
291 | [ href ] -> sprintf "Hyperlink to %s" href
292 | _ -> sprintf "Hyperlinks to: %s" (String.concat ", " hrefs) in
293 let ctxt = (get_gui ())#main#statusBar#new_context ~name:"href" in
294 let msg = ctxt#push msg_text in
295 href_statusbar_msg <- Some (ctxt, msg)
296 | _ -> leave_href ())
297 | None -> leave_href ()
299 method private tactic_text_pattern_of_node node =
300 let id = id_of_node node in
301 let cic_info, unsh_sequent = self#get_cic_info id in
302 match self#get_term_by_id cic_info id with
303 | SelTerm (t, father_hyp) ->
304 let sequent = self#sequent_of_id ~paste_kind:`Pattern id in
305 let text = self#string_of_cic_sequent ~output_type:`Pattern sequent in
306 (match father_hyp with
307 | None -> None, [], Some text
308 | Some hyp_name -> None, [ hyp_name, text ], None)
309 | SelHyp (hyp_name, _ctxt) -> None, [ hyp_name, "%" ], None
311 method private tactic_text_of_node node =
312 let id = id_of_node node in
313 let cic_info, unsh_sequent = self#get_cic_info id in
314 match self#get_term_by_id cic_info id with
315 | SelTerm (t, father_hyp) ->
316 let sequent = self#sequent_of_id ~paste_kind:`Term id in
317 let text = self#string_of_cic_sequent ~output_type:`Term sequent in
319 | SelHyp (hyp_name, _ctxt) -> hyp_name
321 (** @return a pattern structure which contains pretty printed terms *)
322 method private tactic_text_pattern_of_selection =
323 match self#get_selections with
324 | [] -> assert false (* this method is invoked only if there's a sel. *)
325 | node :: _ -> self#tactic_text_pattern_of_node node
327 method private popup_contextual_menu element time =
328 let menu = GMenu.menu () in
329 let add_menu_item ?(menu = menu) ?stock ?label () =
330 GMenu.image_menu_item ?stock ?label ~packing:menu#append () in
331 let check = add_menu_item ~label:"Check" () in
332 let reductions_menu_item = GMenu.menu_item ~label:"βδιζ-reduce" () in
333 let tactics_menu_item = GMenu.menu_item ~label:"Apply tactic" () in
334 let hyperlinks_menu_item = GMenu.menu_item ~label:"Hyperlinks" () in
335 menu#append reductions_menu_item;
336 menu#append tactics_menu_item;
337 menu#append hyperlinks_menu_item;
338 let reductions = GMenu.menu () in
339 let tactics = GMenu.menu () in
340 let hyperlinks = GMenu.menu () in
341 reductions_menu_item#set_submenu reductions;
342 tactics_menu_item#set_submenu tactics;
343 hyperlinks_menu_item#set_submenu hyperlinks;
344 let normalize = add_menu_item ~menu:reductions ~label:"Normalize" () in
345 let simplify = add_menu_item ~menu:reductions ~label:"Simplify" () in
346 let whd = add_menu_item ~menu:reductions ~label:"Weak head" () in
348 | None -> hyperlinks_menu_item#misc#set_sensitive false
350 match hrefs_of_elt elt, href_callback with
354 let item = add_menu_item ~menu:hyperlinks ~label:h () in
355 connect_menu_item item (fun () -> f h)) l
356 | _ -> hyperlinks_menu_item#misc#set_sensitive false);
357 menu#append (GMenu.separator_item ());
358 let copy = add_menu_item ~stock:`COPY () in
359 let gui = get_gui () in
360 List.iter (fun item -> item#misc#set_sensitive gui#canCopy)
361 [ copy; check; normalize; simplify; whd ];
362 let reduction_action kind () =
363 let pat = self#tactic_text_pattern_of_selection in
365 let loc = HExtlib.dummy_floc in
367 GrafiteAstPp.pp_executable ~term_pp:(fun s -> s)
368 ~lazy_term_pp:(fun _ -> assert false) ~obj_pp:(fun _ -> assert false)
369 ~map_unicode_to_tex:(Helm_registry.get_bool
370 "matita.paste_unicode_as_tex")
371 (GrafiteAst.Tactic (loc,
372 Some (GrafiteAst.Reduce (loc, kind, pat)),
373 GrafiteAst.Semicolon loc)) in
374 (!matita_script_current ())#advance ~statement () in
375 connect_menu_item copy gui#copy;
376 connect_menu_item normalize (reduction_action `Normalize);
377 connect_menu_item simplify (reduction_action `Simpl);
378 connect_menu_item whd (reduction_action `Whd);
379 menu#popup ~button:MatitaMisc.right_button ~time
381 method private button_release_cb gdk_button =
382 if GdkEvent.Button.button gdk_button = MatitaMisc.left_button then begin
383 let button_release_x = GdkEvent.Button.x gdk_button in
384 let button_release_y = GdkEvent.Button.y gdk_button in
385 if selection_changed then
387 else (* selection _not_ changed *)
388 if near (button_press_x, button_press_y)
389 (button_release_x, button_release_y)
391 let x = int_of_float button_press_x in
392 let y = int_of_float button_press_y in
393 (match self#get_element_at x y with
396 if has_maction elt then ignore(self#action_toggle elt) else
397 (match hrefs_of_elt elt with
398 | Some hrefs -> self#invoke_href_callback hrefs gdk_button
403 method private invoke_href_callback hrefs gdk_button =
404 let button = GdkEvent.Button.button gdk_button in
405 if button = MatitaMisc.left_button then
406 let time = GdkEvent.Button.time gdk_button in
407 match href_callback with
413 let menu = GMenu.menu () in
417 GMenu.menu_item ~label:uri ~packing:menu#append () in
418 connect_menu_item menu_item
419 (fun () -> try f uri with Not_found -> assert false))
421 menu#popup ~button ~time)
423 method private choose_selection_cb gdome_elt =
424 let set_selection elt =
425 let misc = self#coerce#misc in
426 self#set_selection (Some elt);
427 misc#add_selection_target ~target:"STRING" Gdk.Atom.primary;
428 ignore (misc#grab_selection Gdk.Atom.primary);
431 if (elt#getAttributeNS ~namespaceURI:helm_ns
432 ~localName:xref_ds)#to_string <> ""
437 (match elt#get_parentNode with
438 | None -> assert false
439 | Some p -> aux (new Gdome.element_of_node p))
440 with GdomeInit.DOMCastException _ -> ()
442 (match gdome_elt with
443 | Some elt when (elt#getAttributeNS ~namespaceURI:xlink_ns
444 ~localName:href_ds)#to_string <> "" ->
446 | Some elt -> aux elt
447 | None -> self#set_selection None);
448 selection_changed <- true
450 method update_font_size = self#set_font_size (MatitaMisc.get_current_font_size ())
452 (** find a term by id from stored CIC infos @return either `Hyp if the id
453 * correspond to an hypothesis or `Term (cic, hyp) if the id correspond to a
454 * term. In the latter case hyp is either None (if the term is a subterm of
455 * the sequent conclusion) or Some hyp_name if the term belongs to an
457 method private get_term_by_id cic_info id =
458 let unsh_item, ids_to_terms, ids_to_hypotheses, ids_to_father_ids, _, _ =
460 let rec find_father_hyp id =
461 if Hashtbl.mem ids_to_hypotheses id
462 then Some (name_of_hypothesis (Hashtbl.find ids_to_hypotheses id))
465 try Hashtbl.find ids_to_father_ids id
466 with Not_found -> assert false in
468 | Some id -> find_father_hyp id
472 let term = Hashtbl.find ids_to_terms id in
473 let father_hyp = find_father_hyp id in
474 SelTerm (term, father_hyp)
477 let hyp = Hashtbl.find ids_to_hypotheses id in
479 match unsh_item with Some seq -> seq | None -> assert false in
480 let context' = MatitaMisc.list_tl_at hyp context in
481 SelHyp (name_of_hypothesis hyp, context')
482 with Not_found -> assert false
484 method private find_obj_conclusion id =
485 match self#cic_info with
487 | Some (_, _, _, _, _, None) -> assert false
488 | Some (_, ids_to_terms, _, ids_to_father_ids, ids_to_inner_types, Some annobj) ->
490 find_root_id annobj id ids_to_father_ids ids_to_terms ids_to_inner_types
492 (try Hashtbl.find ids_to_terms id with Not_found -> assert false)
494 method private string_of_node ~(paste_kind:paste_kind) node =
495 if node#hasAttributeNS ~namespaceURI:helm_ns ~localName:xref_ds
497 match paste_kind with
499 let tactic_text_pattern = self#tactic_text_pattern_of_node node in
500 GrafiteAstPp.pp_tactic_pattern
501 ~term_pp:(fun s -> s) ~lazy_term_pp:(fun _ -> assert false)
502 ~map_unicode_to_tex:(Helm_registry.get_bool
503 "matita.paste_unicode_as_tex")
505 | `Term -> self#tactic_text_of_node node
506 else string_of_dom_node node
508 method private string_of_cic_sequent ~output_type cic_sequent =
509 let script = !matita_script_current () in
511 if script#onGoingProof () then script#proofMetasenv else [] in
512 let map_unicode_to_tex =
513 Helm_registry.get_bool "matita.paste_unicode_as_tex" in
514 ApplyTransformation.txt_of_cic_sequent_conclusion ~map_unicode_to_tex
515 ~output_type text_width metasenv cic_sequent
517 method private pattern_of term father_hyp unsh_sequent =
518 let _, unsh_context, conclusion = unsh_sequent in
520 match father_hyp with
526 | Some (Cic.Name name', Cic.Decl ty)::_ when name' = name -> ty
527 | Some (Cic.Name name', Cic.Def (bo,_))::_ when name' = name-> bo
532 ProofEngineHelpers.pattern_of ~term:where [term]
534 method private get_cic_info id =
535 match self#cic_info with
536 | Some ((Some unsh_sequent, _, _, _, _, _) as info) -> info, unsh_sequent
537 | Some ((None, _, _, _, _, _) as info) ->
538 let t = self#find_obj_conclusion id in
539 info, (~-1, [], t) (* dummy sequent for obj *)
540 | None -> assert false
542 method private sequent_of_id ~(paste_kind:paste_kind) id =
543 let cic_info, unsh_sequent = self#get_cic_info id in
545 match self#get_term_by_id cic_info id with
546 | SelTerm (t, father_hyp) ->
548 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
551 ProofEngineHelpers.locate_in_conjecture t unsh_sequent in
552 (match occurrences with
554 (match paste_kind with
555 | `Term -> ~-1, context, t
556 | `Pattern -> ~-1, [], self#pattern_of t father_hyp unsh_sequent)
558 HLog.error (sprintf "found %d occurrences while 1 was expected"
559 (List.length occurrences));
560 assert false) (* since it uses physical equality *)
561 | SelHyp (_name, context) -> ~-1, context, Cic.Rel 1 in
564 method private string_of_selection ~(paste_kind:paste_kind) =
565 match self#get_selections with
567 | node :: _ -> Some (self#string_of_node ~paste_kind node)
569 (** @return an associative list format -> string with all possible selection
570 * formats. Rationale: in order to convert the selection to TERM or PATTERN
571 * format we need the sequent, the metasenv, ... keeping all of them in a
572 * closure would be more expensive than keeping their already converted
574 method strings_of_selection =
576 let misc = self#coerce#misc in
578 (fun target -> misc#add_selection_target ~target Gdk.Atom.clipboard)
579 [ "TERM"; "PATTERN"; "STRING" ];
580 ignore (misc#grab_selection Gdk.Atom.clipboard);
583 paste_kind, HExtlib.unopt (self#string_of_selection ~paste_kind))
585 with Failure _ -> failwith "no selection"
589 class _cicMathView obj =
591 inherit clickableMathView obj
593 val mutable current_mathml = None
595 method nload_sequent:
596 'status. #ApplyTransformation.status as 'status -> NCic.metasenv ->
597 NCic.substitution -> int -> unit
598 = fun status metasenv subst metano ->
599 let sequent = List.assoc metano metasenv in
601 ApplyTransformation.ntxt_of_cic_sequent
602 ~map_unicode_to_tex:false 80 status metasenv subst (metano,sequent)
604 (* MATITA 1.0 if BuildTimeConf.debug then begin
606 "/tmp/sequent_viewer_" ^ string_of_int (Unix.getuid ()) ^ ".xml" in
607 HLog.debug ("load_sequent: dumping MathML to ./" ^ name);
608 ignore (domImpl#saveDocumentToFile ~name ~doc:mathml ())
610 self#load_root ~root:txt
612 method load_nobject :
613 'status. #ApplyTransformation.status as 'status -> NCic.obj -> unit
615 let txt = ApplyTransformation.ntxt_of_cic_object ~map_unicode_to_tex:false
619 (Some (None, ids_to_terms, ids_to_hypotheses, ids_to_father_ids, ids_to_inner_types, Some annobj));
620 (match current_mathml with
621 | Some current_mathml when use_diff ->
623 XmlDiff.update_dom ~from:current_mathml mathml;
627 (* MATITA1.0 if BuildTimeConf.debug then begin
629 "/tmp/cic_browser_" ^ string_of_int (Unix.getuid ()) ^ ".xml" in
630 HLog.debug ("cic_browser: dumping MathML to ./" ^ name);
631 ignore (domImpl#saveDocumentToFile ~name ~doc:mathml ())
633 self#load_root ~root:txt;
634 (*current_mathml <- Some mathml*)(*)*);
639 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 () =
640 ((*SourceView.make_params [] ~cont:(
641 GtkText.View.make_params ~cont:( *)
642 GContainer.pack_container ~create:(fun pl ->
643 let obj = SourceView.new_ () in
644 Gobject.set_params (Gobject.try_cast obj "GtkSourceView") pl;
645 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)
647 let screenshot status sequents metasenv subst (filename as ofn) =
649 let w = GWindow.window ~title:"screenshot" () in
652 let m = GMathView.math_view
653 ~font_size:(MatitaMisc.get_current_font_size ()) ~width ~height
660 (fun (mno,_ as sequent) i ->
662 ApplyTransformation.nmml_of_cic_sequent
663 status metasenv subst sequent
665 m#load_root ~root:mathml#get_documentElement;
666 let pixmap = m#get_buffer in
667 let pixbuf = GdkPixbuf.create ~width ~height () in
668 GdkPixbuf.get_from_drawable ~dest:pixbuf pixmap;
670 filename ^ "-raw" ^ string_of_int i ^ ".png"
672 GdkPixbuf.save ~filename ~typ:"png" pixbuf;
677 List.map (fun (x,mno) ->
681 " '(' -gravity west -bordercolor grey -border 1 label:%d ')' "^^
682 " '(' -trim -bordercolor white -border 5 "^^
683 " -bordercolor grey -border 1 %s ')' -append %s ")
686 (Filename.quote (x ^ ".label.png"))));
690 let rec div2 = function
693 | x::y::tl -> [x;y] :: div2 tl
695 let items = div2 items in
696 ignore(Sys.command (Printf.sprintf
697 "convert %s -append %s"
699 (List.map (fun items ->
700 Printf.sprintf " '(' %s +append ')' "
702 (" '(' -gravity center -size 10x10 xc: ')' ") items)) items))
703 (Filename.quote (ofn ^ ".png"))));
704 List.iter (fun x,_ -> Sys.remove x) filenames;
705 List.iter Sys.remove (List.flatten items);