why3ide.ml 35.9 KB
Newer Older
1
open Why3
2
open Format
3
open Gconfig
4
open Stdlib
Sylvain Dailler's avatar
Sylvain Dailler committed
5 6
open Ide_utils
open History
7 8
open Itp_communication
open Itp_server
9

10 11
external reset_gc : unit -> unit = "ml_reset_gc"

12 13
let debug = Debug.lookup_flag "ide_info"

14 15 16 17 18
(***************************)
(* Debugging Json protocol *)
(***************************)


19
(* TODO remove print_request_json and print_notification_json *)
20 21 22 23 24
exception Badparsing

let print_request_json fmt (r: ide_request) =
  (try (
    let s = Pp.string_of Json_util.print_request r in
25
    let x = Json_util.parse_request s in
26 27 28 29 30 31 32
    if r = x then () else raise Badparsing)
  with
    _ -> Format.eprintf "Bad parsing@.");
  Json_util.print_request fmt r

let print_notification_json fmt (n: notification) =
  (try (
33
    let x = Json_util.parse_notification (Pp.string_of Json_util.print_notification n) in
34 35 36 37 38 39 40 41
    if n = x then () else raise Badparsing)
  with
    _ -> Format.eprintf "Bad parsing@.");
  Json_util.print_notification fmt n

let debug_json = Debug.register_flag "json_proto"
    ~desc:"Print@ json@ requests@ and@ notifications@"

Clément Fumex's avatar
Clément Fumex committed
42 43 44
(*******************)
(* server protocol *)
(*******************)
45

46
module Protocol_why3ide = struct
Clément Fumex's avatar
Clément Fumex committed
47 48

  let debug_proto = Debug.register_flag "ide_proto"
49
      ~desc:"Print@ debugging@ messages@ about@ Why3Ide@ protocol@"
Clément Fumex's avatar
Clément Fumex committed
50 51 52

  let print_request_debug r =
    Debug.dprintf debug_proto "[request]";
53 54
    Debug.dprintf debug_proto "%a@." print_request r;
    Debug.dprintf debug_json "%a@." print_request_json r
Clément Fumex's avatar
Clément Fumex committed
55

Sylvain Dailler's avatar
Sylvain Dailler committed
56 57 58
  let print_msg_debug m =
    Debug.dprintf debug_proto "[message]";
    Debug.dprintf debug_proto "%a@." print_msg m
Clément Fumex's avatar
Clément Fumex committed
59 60 61

  let print_notify_debug n =
    Debug.dprintf debug_proto "[notification]";
62 63
    Debug.dprintf debug_proto "%a@." print_notify n;
    Debug.dprintf debug_json "%a@." print_notification_json n
Clément Fumex's avatar
Clément Fumex committed
64 65 66 67 68 69 70 71 72 73 74

  let list_requests: ide_request list ref = ref []

  let get_requests () =
    if List.length !list_requests > 0 then
      Debug.dprintf debug_proto "get requests@.";
    let l = List.rev !list_requests in
    list_requests := [];
    l

  let send_request r =
75
    print_request_debug r;
Clément Fumex's avatar
Clément Fumex committed
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91
    Debug.dprintf debug_proto "@.";
    list_requests := r :: !list_requests

  let notification_list: notification list ref = ref []

  let notify n =
    print_notify_debug n;
    Debug.dprintf debug_proto "@.";
    notification_list := n :: !notification_list

  let get_notified () =
    if List.length !notification_list > 0 then
      Debug.dprintf debug_proto "get notified@.";
    let l = List.rev !notification_list in
    notification_list := [];
    l
Sylvain Dailler's avatar
Sylvain Dailler committed
92 93 94

end

95 96 97
(* True when session differs from the saved session *)
let session_needs_saving = ref false

Clément Fumex's avatar
Clément Fumex committed
98
let get_notified = Protocol_why3ide.get_notified
Sylvain Dailler's avatar
Sylvain Dailler committed
99

100 101 102 103 104
let send_request r =
  (* If request changes the session then session needs saving *)
  if modify_session r then
    session_needs_saving := true;
  Protocol_why3ide.send_request r
Sylvain Dailler's avatar
Sylvain Dailler committed
105

Clément Fumex's avatar
Clément Fumex committed
106 107 108
(****************************************)
(* server instance on the GTK scheduler *)
(****************************************)
109

Clément Fumex's avatar
Clément Fumex committed
110 111 112
module S = struct
    let idle ~prio f =
      let (_ : GMain.Idle.id) = GMain.Idle.add ~prio f in ()
113

Clément Fumex's avatar
Clément Fumex committed
114 115 116 117
    let timeout ~ms f =
      let (_ : GMain.Timeout.id) = GMain.Timeout.add ~ms ~callback:f in
      ()
end
118

119 120
module Server = Itp_server.Make (S) (Protocol_why3ide)

Clément Fumex's avatar
Clément Fumex committed
121 122 123
(************************)
(* parsing command line *)
(************************)
124

Clément Fumex's avatar
Clément Fumex committed
125 126 127 128 129 130 131 132
let files : string Queue.t = Queue.create ()
let opt_parser = ref None

let spec = Arg.align [
  "-F", Arg.String (fun s -> opt_parser := Some s),
      "<format> select input format (default: \"why\")";
  "--format", Arg.String (fun s -> opt_parser := Some s),
      " same as -F";
Sylvain Dailler's avatar
Sylvain Dailler committed
133
(*
Clément Fumex's avatar
Clément Fumex committed
134 135 136
  "-f",
   Arg.String (fun s -> input_files := s :: !input_files),
   "<file> add file to the project (ignored if it is already there)";
Sylvain Dailler's avatar
Sylvain Dailler committed
137
*)
Clément Fumex's avatar
Clément Fumex committed
138 139
  Termcode.arg_extra_expl_prefix
]
140

Clément Fumex's avatar
Clément Fumex committed
141 142 143
let usage_str = sprintf
  "Usage: %s [options] [<file.why>|<project directory>]..."
  (Filename.basename Sys.argv.(0))
MARCHE Claude's avatar
MARCHE Claude committed
144

145 146 147
let env, gconfig = try
  let config, base_config, env =
    Whyconf.Args.initialize spec (fun f -> Queue.add f files) usage_str in
Clément Fumex's avatar
Clément Fumex committed
148 149 150
    if Queue.is_empty files then
      Whyconf.Args.exit_with_usage spec usage_str;
    Gconfig.load_config config base_config;
151
    env, Gconfig.config ()
Clément Fumex's avatar
Clément Fumex committed
152 153 154 155 156

  with e when not (Debug.test_flag Debug.stack_trace) ->
    eprintf "%a@." Exn_printer.exn_printer e;
    exit 1

157 158
(* Initialization of config, provers, task_driver and controller in the server *)
let () = Server.init_server gconfig.config env
159

Clément Fumex's avatar
Clément Fumex committed
160 161 162 163 164 165
let () =
  Debug.dprintf debug "[GUI] Init the GTK interface...@?";
  ignore (GtkMain.Main.init ());
  Debug.dprintf debug " done.@.";
  Gconfig.init ()

MARCHE Claude's avatar
MARCHE Claude committed
166

MARCHE Claude's avatar
MARCHE Claude committed
167 168 169 170 171
(********************************)
(* Source language highlighting *)
(********************************)

let (why_lang, any_lang) =
Clément Fumex's avatar
Clément Fumex committed
172 173
  let main = Whyconf.get_main gconfig.config in
  let load_path = Filename.concat (Whyconf.datadir main) "lang" in
MARCHE Claude's avatar
MARCHE Claude committed
174 175 176 177 178 179 180 181
  let languages_manager =
    GSourceView2.source_language_manager ~default:true
  in
  languages_manager#set_search_path
    (load_path :: languages_manager#search_path);
  let why_lang =
    match languages_manager#language "why3" with
    | None ->
Clément Fumex's avatar
Clément Fumex committed
182
        eprintf "language file for 'why3' not found in directory %s@."
MARCHE Claude's avatar
MARCHE Claude committed
183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205
          load_path;
        exit 1
    | Some _ as l -> l in
  let any_lang filename =
    match languages_manager#guess_language ~filename () with
    | None -> why_lang
    | Some _ as l -> l in
  (why_lang, any_lang)

(* Borrowed from Frama-C src/gui/source_manager.ml:
Try to convert a source file either as UTF-8 or as locale. *)
let try_convert s =
  try
    if Glib.Utf8.validate s then s else Glib.Convert.locale_to_utf8 s
  with Glib.Convert.Error _ ->
    try
      Glib.Convert.convert_with_fallback
        ~fallback:"#neither UTF-8 nor locale nor ISO-8859-15#"
        ~to_codeset:"UTF-8"
        ~from_codeset:"ISO_8859-15"
        s
    with Glib.Convert.Error _ as e -> Printexc.to_string e

206 207 208
(**********************)
(* Graphical elements *)
(**********************)
209

210
let main_window : GWindow.window =
211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245
  let w = GWindow.window
            ~allow_grow:true ~allow_shrink:true
            ~width:gconfig.window_width
            ~height:gconfig.window_height
            ~title:"Why3 Interactive Proof Session" ()
  in
  (* callback to record the new size of the main window when changed, so
   that on restart the window size is the same as the last session *)
  let (_ : GtkSignal.id) =
    w#misc#connect#size_allocate
      ~callback:
      (fun {Gtk.width=w;Gtk.height=h} ->
       gconfig.window_height <- h;
       gconfig.window_width <- w)
  in w

(* the main window contains a vertical box, containing:
   1. the menu
   2. an horizontal box
 *)

let vbox = GPack.vbox ~packing:main_window#add ()

let menubar = GMenu.menu_bar
  ~packing:(vbox#pack ?from:None ?expand:None ?fill:None ?padding:None)
  ()

let hb = GPack.hbox ~packing:vbox#add ()

(* 1. Menu *)

let factory = new GMenu.factory menubar

let accel_group = factory#accel_group

MARCHE Claude's avatar
MARCHE Claude committed
246 247
(* 1.1 "File" menu *)

248 249 250
let file_menu = factory#add_submenu "_File"
let file_factory = new GMenu.factory file_menu ~accel_group

251 252 253 254
let quit_on_saved = ref false

(* Exit brutally without asking anything *)
let exit_function_unsafe () =
Sylvain Dailler's avatar
Sylvain Dailler committed
255
  send_request Exit_req;
256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272
  GMain.quit ()

(* Ask if the user wants to save session before exit *)
let exit_function_safe () =
  if not !session_needs_saving then exit_function_unsafe () else
  let answer =
    GToolbox.question_box
      ~title:"Why3 saving session"
      ~buttons:["Yes"; "No"; "Cancel"]
      "Do you want to save the session?"
  in
  begin
    match answer with
    | 1 -> send_request Save_req; quit_on_saved := true
    | 2 -> exit_function_unsafe ()
    | _ -> ()
  end
273 274

let (_ : GtkSignal.id) = main_window#connect#destroy
275 276
  ~callback:exit_function_safe

277

MARCHE Claude's avatar
MARCHE Claude committed
278 279 280 281 282 283
(* 1.2 "View" menu

   the entries in that menu are defined later

*)

284 285 286 287
(* 2. horizontal box contains:
   2.1 TODO: a tool box ?
   2.2 a horizontal paned containing:
     2.2.1 a scrolled window to hold the tree view of the session
Clément Fumex's avatar
Clément Fumex committed
288
     2.2.2 a vertical paned containing
289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306
*)

let hp = GPack.paned `HORIZONTAL ~packing:hb#add ()

let scrollview =
  let sv =
    GBin.scrolled_window
      ~hpolicy:`AUTOMATIC ~vpolicy:`AUTOMATIC
      ~width:gconfig.tree_width ~shadow_type:`ETCHED_OUT
      ~packing:hp#add ()
  in
  let (_ : GtkSignal.id) =
    sv#misc#connect#size_allocate
      ~callback:
      (fun {Gtk.width=w;Gtk.height=_h} ->
       gconfig.tree_width <- w)
  in sv

Clément Fumex's avatar
Clément Fumex committed
307
let vpan222 = GPack.paned `VERTICAL ~packing:hp#add ()
308 309 310 311 312 313

(*  the scrolled window 2.2.1 contains a GTK tree

*)


314
(** {2 view for the session tree} *)
MARCHE Claude's avatar
MARCHE Claude committed
315 316 317 318 319 320 321
let scrolled_session_view =
  GBin.scrolled_window
    ~hpolicy: `AUTOMATIC ~vpolicy: `AUTOMATIC
    ~shadow_type:`ETCHED_OUT
    ~packing:scrollview#add
    ()

322 323
(** {3 the model for tree view} *)

324
let cols = new GTree.column_list
325
(* first column: unique id of the object *)
Clément Fumex's avatar
Clément Fumex committed
326
let node_id_column = cols#add Gobject.Data.int
327 328 329 330 331
(* second column: an icon identifying the object: file,theory, goal, transformation *)
let icon_column = cols#add Gobject.Data.gobject
(* third column: name of the object *)
let name_column = cols#add Gobject.Data.string
(* fourth column: icon status for the object: proved/unproved, unknown, timeout, etc. *)
332
let status_column = cols#add Gobject.Data.gobject
333
(* fifth column: extra status info: time, obsolete status, limits *)
334
let time_column = cols#add Gobject.Data.string
MARCHE Claude's avatar
MARCHE Claude committed
335

336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361
(* first view column: icon and name *)
let view_name_column =
  let v = GTree.view_column ~title:"Theories/Goals" () in
  (* icon attribute *)
  let icon_renderer = GTree.cell_renderer_pixbuf [ ] in
  v#pack icon_renderer ;
  v#add_attribute icon_renderer "pixbuf" icon_column;
  let name_renderer = GTree.cell_renderer_text [`XALIGN 0.] in
  v#pack name_renderer;
  v#add_attribute name_renderer "text" name_column;
(*  v#set_sizing `AUTOSIZE; *)
  v#set_resizable true;
  v#set_max_width 500;
  v

(* second view column: status *)

let view_status_column =
  let status_renderer = GTree.cell_renderer_pixbuf [ ] in
  let v = GTree.view_column ~title:"Status"
                            ~renderer:(status_renderer, ["pixbuf", status_column])
                            ()
  in
  v#set_resizable false;
  v#set_visible true;
  v
362 363 364

let view_time_column =
  let renderer = GTree.cell_renderer_text [`XALIGN 0.] in
365 366 367 368 369 370
  let v = GTree.view_column ~title:"Time"
                            ~renderer:(renderer, ["text", time_column]) ()
  in
  v#set_resizable false;
  v#set_visible true;
  v
371

372 373 374 375 376 377 378
let goals_model,goals_view =
  Debug.dprintf debug "[GUI] Creating tree model...@?";
  let model = GTree.tree_store cols in
  let view = GTree.view ~model ~packing:scrolled_session_view#add () in
(*
  let () = view#selection#set_mode (* `SINGLE *) `MULTIPLE in
  let () = view#set_rules_hint true in
379 380
*)
  let () = view#set_enable_search false in
381
  ignore (view#append_column view_name_column);
382
  ignore (view#append_column view_status_column);
383
  ignore (view#append_column view_time_column);
384
  Debug.dprintf debug "[GTK IDE] done@.";
385
  model,view
386

387 388 389 390 391 392 393 394 395 396 397 398

(***********************************)
(* Mapping session to the GTK tree *)
(***********************************)

type pa_status = Controller_itp.proof_attempt_status
      * bool   (* obsolete or not *) (* TODO *)
      * Call_provers.resource_limit

let node_id_type : node_type Hint.t = Hint.create 17
let node_id_proved : bool Hint.t = Hint.create 17
let node_id_pa : pa_status Hint.t = Hint.create 17
399
let node_id_detached : bool Hint.t = Hint.create 17
400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424

let get_node_type id = Hint.find node_id_type id
let get_node_proved id = Hint.find node_id_proved id
let get_node_id_pa id = Hint.find node_id_pa id

let get_obs (pa_st: pa_status) = match pa_st with
| _, b, _ -> b

let get_proof_attempt (pa_st: pa_status) = match pa_st with
| pa, _, _ -> pa

let get_limit (pa_st: pa_status) = match pa_st with
| _, _, l -> l

let get_node_obs id = get_obs (get_node_id_pa id)
let get_node_proof_attempt id = get_proof_attempt (get_node_id_pa id)
let get_node_limit id = get_limit (get_node_id_pa id)

let get_node_id iter = goals_model#get ~row:iter ~column:node_id_column

(* To each node we have the corresponding row_reference *)
let node_id_to_gtree : GTree.row_reference Hint.t = Hint.create 42
(* TODO exception for those: *)
let get_node_row id = Hint.find node_id_to_gtree id

425 426 427
let get_node_detached id =
  Hint.find node_id_detached id

428 429 430 431 432 433 434 435 436 437 438 439 440 441
(******************************)
(* Initialization of the tree *)
(******************************)

let remove_tree goals_model =
  Hint.iter (fun _x i ->
    try ignore(goals_model#remove (i#iter)) with _ -> ())
    node_id_to_gtree

let clear_tree_and_table goals_model =
  remove_tree goals_model;
  Hint.clear node_id_to_gtree;
  Hint.clear node_id_type;
  Hint.clear node_id_proved;
442 443
  Hint.clear node_id_pa;
  Hint.clear node_id_detached
444 445


446

447 448 449
(**************)
(* Menu items *)
(**************)
450 451 452


let (_ : GMenu.image_menu_item) =
453 454 455
  let callback () =
    Gconfig.preferences gconfig;
    (* TODO:
456 457 458 459 460 461 462 463 464 465 466 467 468 469
      begin
        match !current_env_session with
          | None -> ()
          | Some e ->
              Session.update_env_session_config e gconfig.config;
              Session.unload_provers e
      end;
      recreate_gui ();
(*
      Mprover.iter
        (fun p pi ->
          Debug.dprintf debug "editor for %a : %s@." Whyconf.print_prover p
            pi.editor)
        (Whyconf.get_provers gconfig.config);
470 471 472 473 474 475
     *)
     *)
    let nb = gconfig.session_nb_processes in
    send_request (Set_max_tasks_req nb)
  in
  file_factory#add_image_item ~label:"_Preferences" ~callback ()
476

477 478 479 480 481 482 483 484 485
let (_ : GMenu.menu_item) =
  file_factory#add_item ~key:GdkKeysyms._S "_Save session"
    ~callback:(fun () -> send_request Save_req)

let (replay_menu_item : GMenu.menu_item) =
  file_factory#add_item ~key:GdkKeysyms._R "_Replay all"

let (_ : GMenu.menu_item) =
  file_factory#add_item ~key:GdkKeysyms._Q "_Quit"
486
    ~callback:exit_function_safe
487 488 489

(* TODO key stroked to be decided *)
let reload_menu_item : GMenu.menu_item =
490
  file_factory#add_item ~key:GdkKeysyms._E "r_Eload session"
491 492 493 494 495
    ~callback:(fun () ->
      (* Clearing the tree *)
      clear_tree_and_table goals_model;
      send_request Reload_req)

496

Clément Fumex's avatar
Clément Fumex committed
497
(* vpan222 contains:
498
   2.2.2.1 a notebook containing view of the current task, source code etc
Clément Fumex's avatar
Clément Fumex committed
499 500
   2.2.2.2 a vertiacal pan which contains
     2.2.2.2.1 the input field to type commands
501
     2.2.2.2.2 a scrolled window to hold the output of the commands
502 503
 *)

504 505 506 507 508 509 510 511 512 513 514
(*************************************)
(*    notebook on the right 2.2.2.1  *)
(*************************************)

let notebook = GPack.notebook ~packing:vpan222#add ()

let task_page,scrolled_task_view =
  let label = GMisc.label ~text:"Task" () in
  0, GPack.vbox ~homogeneous:false ~packing:
    (fun w -> ignore(notebook#append_page ~tab_label:label#coerce w)) ()

515 516 517 518
let scrolled_task_view =
  GBin.scrolled_window
    ~hpolicy: `AUTOMATIC ~vpolicy: `AUTOMATIC
    ~shadow_type:`ETCHED_OUT
519
    ~packing:scrolled_task_view#add ()
520

521
(* Showing current task *)
522 523 524
let task_view =
  GSourceView2.source_view
    ~editable:false
Clément Fumex's avatar
Clément Fumex committed
525
    ~cursor_visible:false
526 527 528 529
    ~show_line_numbers:true
    ~packing:scrolled_task_view#add
    ()

530 531
let source_view_table : (int * GSourceView2.source_view) Hstr.t =
  Hstr.create 14
532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568

let create_source_view =
  let n = ref 1 in
  let create_source_view f content =
    if not (Hstr.mem source_view_table f) then
      begin
        let source_page, scrolled_source_view =
          let label = GMisc.label ~text:f () in
          !n, GPack.vbox ~homogeneous:false ~packing:
            (fun w -> ignore(notebook#append_page ~tab_label:label#coerce w)) () in
        let scrolled_source_view =
          GBin.scrolled_window
            ~hpolicy: `AUTOMATIC ~vpolicy: `AUTOMATIC
            ~shadow_type:`ETCHED_OUT
            ~packing:scrolled_source_view#add () in
        let source_view =
          GSourceView2.source_view
            ~auto_indent:true
            ~insert_spaces_instead_of_tabs:true ~tab_width:2
            ~show_line_numbers:true
            ~right_margin_position:80 ~show_right_margin:true
            (* ~smart_home_end:true *)
            ~editable:true
            ~packing:scrolled_source_view#add
            () in
        Hstr.add source_view_table f (source_page, source_view);
        n := !n + 1;
        source_view#source_buffer#set_text content;
        Gconfig.add_modifiable_mono_font_view source_view#misc;
        source_view#source_buffer#set_language why_lang;
        Gconfig.set_fonts ()
      end in
  create_source_view

(* End of notebook *)


Clément Fumex's avatar
Clément Fumex committed
569
let vbox2222 = GPack.vbox ~packing:vpan222#add  ()
570

571 572 573 574 575 576
let hbox22221 =
  GPack.hbox
    ~packing:(vbox2222#pack ?from:None ?expand:None ?fill:None ?padding:None) ()

let monitor =
  GMisc.label
MARCHE Claude's avatar
MARCHE Claude committed
577
    ~text:"  0/0/0"
578
    ~width:100
MARCHE Claude's avatar
MARCHE Claude committed
579
    ~xalign:0.0
580
    ~packing:(hbox22221#pack ?from:None ?expand:None ?fill:None ?padding:None) ()
581

MARCHE Claude's avatar
MARCHE Claude committed
582 583
let command_entry = GEdit.entry ~packing:hbox22221#add ()

MARCHE Claude's avatar
MARCHE Claude committed
584
let message_zone =
585 586 587 588
  let sv = GBin.scrolled_window
      ~hpolicy:`AUTOMATIC ~vpolicy:`AUTOMATIC
      ~shadow_type:`ETCHED_OUT ~packing:vbox2222#add ()
  in
MARCHE Claude's avatar
MARCHE Claude committed
589
  GText.view ~editable:false ~cursor_visible:false
590 591
    ~packing:sv#add ()

592 593 594
(**** Message-zone printing functions *****)

(* Function used to print stuff on the message_zone *)
MARCHE Claude's avatar
MARCHE Claude committed
595
let print_message fmt =
596
  (* Format.kasprintf is not available in Ocaml 4.02.3 :-(
MARCHE Claude's avatar
MARCHE Claude committed
597 598 599
  Format.kasprintf
    message_zone#buffer#set_text
    fmt
600 601 602 603 604 605 606
   *)
  Format.kfprintf
    (fun _ -> let s = flush_str_formatter () in
              message_zone#buffer#set_text s)
    str_formatter
    fmt

607 608 609 610 611 612

let add_to_msg_zone s =
  let s = message_zone#buffer#get_text () ^ "\n" ^ s in
  message_zone#buffer#set_text s;
  message_zone#scroll_to_mark `INSERT

613
(**** Monitor *****)
Clément Fumex's avatar
Clément Fumex committed
614

615 616 617 618 619 620 621 622 623 624 625 626 627
let fan n =
  match n mod 4 with
    | 0 -> "|"
    | 1 | -3 -> "\\"
    | 2 | -2 -> "-"
    | 3 | -1 -> "/"
    | _ -> assert false

let update_monitor =
  let c = ref 0 in
  fun t s r ->
  reset_gc ();
  incr c;
MARCHE Claude's avatar
MARCHE Claude committed
628 629 630
  let f = if r=0 then "  " else fan (!c / 2) ^ " " in
  monitor#set_text
    (f ^ (string_of_int t) ^ "/" ^ (string_of_int s) ^ "/" ^ (string_of_int r))
Clément Fumex's avatar
Clément Fumex committed
631

MARCHE Claude's avatar
MARCHE Claude committed
632

633 634 635 636 637 638 639 640 641 642 643 644 645 646 647
(****************************)
(* command entry completion *)
(****************************)

let completion_cols = new GTree.column_list
let completion_col = completion_cols#add Gobject.Data.string
let completion_model = GTree.tree_store completion_cols

let command_entry_completion : GEdit.entry_completion =
  GEdit.entry_completion ~model:completion_model ~minimum_key_length:1 ~entry:command_entry ()

let add_completion_entry s =
  let row = completion_model#append () in
  completion_model#set ~row ~column:completion_col s

648 649 650 651 652 653 654
let match_function s iter =
  let candidate = completion_model#get ~row:iter ~column:completion_col in
  try
    ignore (Str.search_forward (Str.regexp s) candidate 0);
    true
  with Not_found -> false

Clément Fumex's avatar
Clément Fumex committed
655
let init_completion provers transformations commands =
656
  (* add the names of all the the transformations *)
Clément Fumex's avatar
Clément Fumex committed
657
  List.iter add_completion_entry transformations;
658
  (* add the name of the commands *)
Clément Fumex's avatar
Clément Fumex committed
659
  List.iter add_completion_entry commands;
660 661
  (* todo: add queries *)

662
  (* add provers *)
Clément Fumex's avatar
Clément Fumex committed
663 664
  List.iter add_completion_entry provers;

665 666 667
  add_completion_entry "auto";
  add_completion_entry "auto 2";

668
  command_entry_completion#set_text_column completion_col;
669
  command_entry_completion#set_match_func match_function;
670

671
  command_entry#set_completion command_entry_completion
672

Sylvain Dailler's avatar
Sylvain Dailler committed
673
(*********************)
674
(* Terminal history  *)
Sylvain Dailler's avatar
Sylvain Dailler committed
675 676
(*********************)

677
let list_commands = create_history()
Sylvain Dailler's avatar
Sylvain Dailler committed
678 679 680

let _ =
  command_entry#event#connect#key_press
681 682 683
    ~callback:(fun (ev: 'a Gdk.event) ->
      match GdkEvent.Key.keyval ev with
      | k when k = GdkKeysyms._Up -> (* Arrow up *)
684 685 686 687 688
          let s = print_next_command list_commands in
          (match s with
          | None -> true
          | Some s ->
              (command_entry#set_text s; true))
689
      | k when k = GdkKeysyms._Down -> (* Arrow down *)
690 691 692 693 694
          let s = print_prev_command list_commands in
          (match s with
          | None -> true
          | Some s ->
              (command_entry#set_text s; true))
Sylvain Dailler's avatar
Sylvain Dailler committed
695 696 697
      | _ -> false
      )

Clément Fumex's avatar
Clément Fumex committed
698 699 700
let () =
  let n = gconfig.session_nb_processes in
  Debug.dprintf debug "[IDE] setting max proof tasks to %d@." n;
701
  send_request (Set_max_tasks_req n)
702

703 704
let (_ : GtkSignal.id) =
  replay_menu_item#connect#activate
705
    ~callback:(fun () -> send_request Replay_req)
706

707 708 709
(**************************)
(* Graphical proof status *)
(**************************)
710

Sylvain Dailler's avatar
Sylvain Dailler committed
711 712
let image_of_pa_status ~obsolete pa =
  match pa with
713 714
  | Controller_itp.Unedited -> !image_scheduled (* TODO !image_unedited *)
  | Controller_itp.JustEdited -> !image_scheduled (* TODO !image_edited *)
715
  | Controller_itp.Interrupted -> !image_undone
716 717 718 719
  | Controller_itp.Scheduled -> !image_scheduled
  | Controller_itp.Running -> !image_running
  | Controller_itp.InternalFailure _e -> !image_failure
  | Controller_itp.Uninstalled _p -> !image_failure (* TODO !image_uninstalled *)
Sylvain Dailler's avatar
Sylvain Dailler committed
720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742
(*  | None -> !image_undone*)
  | Controller_itp.Done r ->
    let pr_answer = r.Call_provers.pr_answer in
    begin
      match pr_answer with
      | Call_provers.Valid ->
        if obsolete then !image_valid_obs else !image_valid
      | Call_provers.Invalid ->
        if obsolete then !image_invalid_obs else !image_invalid
      | Call_provers.Timeout ->
        if obsolete then !image_timeout_obs else !image_timeout
      | Call_provers.OutOfMemory ->
        if obsolete then !image_outofmemory_obs else !image_outofmemory
      | Call_provers.StepLimitExceeded ->
        if obsolete then !image_steplimitexceeded_obs
        else !image_steplimitexceeded
      | Call_provers.Unknown _ ->
        if obsolete then !image_unknown_obs else !image_unknown
      | Call_provers.Failure _ ->
        if obsolete then !image_failure_obs else !image_failure
      | Call_provers.HighFailure ->
        if obsolete then !image_failure_obs else !image_failure
    end
743

Clément Fumex's avatar
Clément Fumex committed
744 745
let set_status_column iter =
  let id = get_node_id iter in
746
  let proved = get_node_proved id in
747
  let detached = get_node_detached id in
Clément Fumex's avatar
Clément Fumex committed
748 749 750 751 752 753
  let image = match get_node_type id with
    | NRoot -> assert false
    | NFile
    | NTheory
    | NTransformation
    | NGoal ->
754 755 756 757 758 759
      if detached then
        !image_valid_obs
      else
        if proved
        then !image_valid
        else !image_unknown
760
    | NProofAttempt ->
Sylvain Dailler's avatar
Sylvain Dailler committed
761 762 763
      let pa = get_node_proof_attempt id in
      let obs = get_node_obs id in
      image_of_pa_status ~obsolete:obs pa
764 765
  in
  goals_model#set ~row:iter ~column:status_column image
766

767
let new_node ?parent ?(collapse=false) id name typ proved detached =
Clément Fumex's avatar
Clément Fumex committed
768 769
  if not (Hint.mem node_id_to_gtree id) then begin
    Hint.add node_id_type id typ;
Sylvain Dailler's avatar
Sylvain Dailler committed
770
    Hint.add node_id_proved id proved;
771
    Hint.add node_id_detached id detached;
Sylvain Dailler's avatar
Sylvain Dailler committed
772 773 774 775 776 777 778
    (* The tree does not have a root by default so the task is a forest with
       several root files *)
    let iter =
      match parent with
      | None -> goals_model#append ()
      | Some p -> goals_model#append ~parent:p#iter ()
    in
Sylvain Dailler's avatar
Sylvain Dailler committed
779
    goals_model#set ~row:iter ~column:name_column name;
Clément Fumex's avatar
Clément Fumex committed
780
    goals_model#set ~row:iter ~column:node_id_column id;
781 782 783 784 785 786 787
    goals_model#set ~row:iter ~column:icon_column
      (match typ with
         | NGoal -> !image_goal
         | NRoot | NFile -> !image_file
         | NTheory -> !image_theory
         | NTransformation -> !image_transf
         | NProofAttempt -> !image_prover);
Clément Fumex's avatar
Clément Fumex committed
788 789 790 791
    let new_ref = goals_model#get_row_reference (goals_model#get_path iter) in
    (* By default expand_path when creating a new node *)
    if not collapse then goals_view#expand_to_path (goals_model#get_path iter);
    Hint.add node_id_to_gtree id new_ref;
792 793
    set_status_column iter;
    new_ref
Clément Fumex's avatar
Clément Fumex committed
794
  end
795 796
  else
    Hint.find node_id_to_gtree id
797

798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813
(*******************************)
(* commands of the "View" menu *)
(*******************************)

let view_menu = factory#add_submenu "_View"
let view_factory = new GMenu.factory view_menu ~accel_group

(* goals view is not yet multi-selectable
let (_ : GMenu.image_menu_item) =
  view_factory#add_image_item ~key:GdkKeysyms._A
    ~label:"Select all"
    ~callback:(fun () -> goals_view#selection#select_all ()) ()
 *)

let (_ : GMenu.menu_item) =
  view_factory#add_item ~key:GdkKeysyms._plus
Clément Fumex's avatar
Clément Fumex committed
814
    ~callback:enlarge_fonts "Enlarge font"
815 816 817

let (_ : GMenu.menu_item) =
    view_factory#add_item ~key:GdkKeysyms._minus
Clément Fumex's avatar
Clément Fumex committed
818
      ~callback:reduce_fonts "Reduce font"
819 820 821 822 823

let (_ : GMenu.image_menu_item) =
  view_factory#add_image_item ~key:GdkKeysyms._E
    ~label:"Expand all" ~callback:(fun () -> goals_view#expand_all ()) ()

824
let collapse_iter iter =
825 826 827
  let path = goals_model#get_path iter in
  goals_view#collapse_row path

828 829 830 831 832 833 834 835 836 837
let rec collapse_proven_goals_from_iter iter =
  let node_id = get_node_id iter in
  let is_proved = get_node_proved node_id in
  if is_proved then
    collapse_iter iter
  else
    let n = goals_model#iter_n_children (Some iter) in
    for i = 0 to (n - 1) do
      collapse_proven_goals_from_iter (goals_model#iter_children ?nth:(Some i) (Some iter))
    done
838 839 840 841 842 843 844 845

let collapse_proven_goals () =
  match goals_model#get_iter_first with
  | None -> ()
  | Some root_iter -> collapse_proven_goals_from_iter root_iter

let (_ : GMenu.image_menu_item) =
  view_factory#add_image_item ~key:GdkKeysyms._C
846
    ~label:"Collapse proven goals" ~callback:(fun () -> collapse_proven_goals ()) ()
847 848 849 850 851 852 853

let () =
  Gconfig.add_modifiable_sans_font_view goals_view#misc;
  Gconfig.add_modifiable_mono_font_view monitor#misc;
  Gconfig.add_modifiable_mono_font_view task_view#misc;
  Gconfig.add_modifiable_mono_font_view command_entry#misc;
  Gconfig.add_modifiable_mono_font_view message_zone#misc;
MARCHE Claude's avatar
MARCHE Claude committed
854
  task_view#source_buffer#set_language why_lang;
Clément Fumex's avatar
Clément Fumex committed
855
  Gconfig.set_fonts ()
856

857 858 859 860
(******************)
(*    actions     *)
(******************)

Clément Fumex's avatar
Clément Fumex committed
861 862 863 864
let get_selected_row_references () =
  List.map
    (fun path -> goals_model#get_row_reference path)
    goals_view#selection#get_selected_rows
865

866
let rec update_status_column_from_iter cont iter =
Clément Fumex's avatar
Clément Fumex committed
867
  set_status_column iter;
868
  match goals_model#iter_parent iter with
869
  | Some p -> update_status_column_from_iter cont p
870 871
  | None -> ()

872 873
let move_current_row_selection_up () =
  let current_view = List.hd (goals_view#selection#get_selected_rows) in
874 875 876
  ignore (GTree.Path.up current_view);
  let row_up = goals_model#get_row_reference current_view in
  goals_view#selection#select_iter row_up#iter
877 878 879 880 881 882 883 884 885 886 887 888 889

let move_current_row_selection_down () =
  let current_iter =
    try
      let current_view = List.hd (goals_view#selection#get_selected_rows) in
      let current_row = goals_model#get_row_reference current_view in
      Some current_row#iter
    with Not_found ->
      None
  in
  let child = goals_model#iter_children current_iter in
  goals_view#selection#select_iter child

890
let clear_command_entry () = command_entry#set_text ""
MARCHE Claude's avatar
MARCHE Claude committed
891 892

let interp cmd =
Clément Fumex's avatar
Clément Fumex committed
893 894 895 896 897 898
  (* TODO: do some preprocessing for queries, or leave everything to server ? *)
  (* TODO: treat multiple rows *)
  let rows = get_selected_row_references () in
  let id = if List.length rows > 0 then
      get_node_id ((List.hd rows)#iter)
    else
Sylvain Dailler's avatar
Sylvain Dailler committed
899
      (* If no nodes are in the tree send command on default root node *)
Clément Fumex's avatar
Clément Fumex committed
900 901
      root_node
  in
Sylvain Dailler's avatar
Sylvain Dailler committed
902
  send_request (Command_req (id, cmd));
903
  clear_command_entry ()
MARCHE Claude's avatar
MARCHE Claude committed
904 905 906

let (_ : GtkSignal.id) =
  command_entry#connect#activate
907 908
    ~callback:(fun () -> add_command list_commands command_entry#text;
      interp command_entry#text)
909

910 911
let on_selected_row r =
  try
Clément Fumex's avatar
Clément Fumex committed
912 913 914 915
    let id = get_node_id r#iter in
    let typ = get_node_type id in
    match typ with
    | NGoal ->
916 917 918 919 920
      let detached = get_node_detached id in
      if detached then
        task_view#source_buffer#set_text ""
      else
        send_request (Get_task id)
921
    | _ ->  send_request (Get_task id)
922 923
  with
    | Not_found -> task_view#source_buffer#set_text ""
Clément Fumex's avatar
Clément Fumex committed
924

925 926 927
let (_ : GtkSignal.id) =
  goals_view#selection#connect#after#changed ~callback:
    (fun () ->
MARCHE Claude's avatar
MARCHE Claude committed
928 929 930 931 932 933
     begin
       match get_selected_row_references () with
       | [r] -> on_selected_row r
       | _ -> ()
     end (* ;
     command_entry#misc#grab_focus () *))
Clément Fumex's avatar
Clément Fumex committed
934

935 936 937 938 939 940 941
let remove_item: GMenu.menu_item =
  file_factory#add_item "Remove"
    ~callback:(fun () ->
      match get_selected_row_references () with
      | [r] -> let id = get_node_id r#iter in send_request (Remove_subtree id)
      | _ -> print_message "Select only one node to perform this action")

Sylvain Dailler's avatar
Sylvain Dailler committed
942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985
(*************************************)
(* Commands of the Experimental menu *)
(*************************************)

let exp_menu = factory#add_submenu "_Experimental"
let exp_factory = new GMenu.factory exp_menu ~accel_group


(* Current copied node *)
let saved_copy = ref None

let copy () =
  match get_selected_row_references () with
  | [r] -> let n = get_node_id r#iter in
    saved_copy := Some n
  | _ -> ()

let paste () =
  match get_selected_row_references () with
  | [r] ->
      let m = get_node_id r#iter in
    (match !saved_copy with
    | Some n -> send_request (Copy_paste (n, m))
    | None -> ())
  | _ -> ()

let detached_copy () =
  match get_selected_row_references () with
  | [r] -> let n = get_node_id r#iter in
    send_request (Copy_detached n)
  | _ -> ()

let (_ : GMenu.menu_item) =
  exp_factory#add_item ~key:GdkKeysyms._C
    ~callback:copy "Copy"

let (_ : GMenu.menu_item) =
  exp_factory#add_item ~key:GdkKeysyms._V
    ~callback:paste "Paste"

let (_ : GMenu.menu_item) =
  exp_factory#add_item ~key:GdkKeysyms._D
    ~callback:detached_copy "Detached copy"

986 987 988 989 990 991 992 993 994 995 996 997 998
let save_sources () =
  Hstr.iter
    (fun k (_n, (s: GSourceView2.source_view)) ->
      let text_to_save = s#source_buffer#get_text () in
      send_request (Save_file_req (k, text_to_save))
    )
    source_view_table

(* TODO replace this with menu items *)
let (_ : GMenu.menu_item) =
  exp_factory#add_item ~key:GdkKeysyms._X "Save files"
    ~callback:(fun () -> save_sources ())

999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045
(*********************************)
(* add a new file in the project *)
(*********************************)

let filter_all_files () =
  let f = GFile.filter ~name:"All" () in
  f#add_pattern "*" ;
  f

let filter_why_files () =
  GFile.filter
    ~name:"Why3 source files"
    ~patterns:[ "*.why"; "*.mlw"] ()

let select_file ~request =
  let d = GWindow.file_chooser_dialog ~action:`OPEN
    ~title:"Why3: Add file in project"
    ()
  in
  d#add_button_stock `CANCEL `CANCEL ;
  d#add_select_button_stock `OPEN `OPEN ;
  d#add_filter (filter_why_files ()) ;
  d#add_filter (filter_all_files ()) ;
  begin match d#run () with
  | `OPEN ->
      begin
        match d#filename with
          | None -> ()
          | Some f -> request f
      end
  | `DELETE_EVENT | `CANCEL -> ()
  end ;
  d#destroy ()

let open_item: GMenu.menu_item =
  file_factory#add_item ~key:GdkKeysyms._A "_Add file"
    ~callback:(fun () ->
      select_file ~request:(fun f -> send_request (Add_file_req f)))

let open_session: GMenu.menu_item =
  file_factory#add_item ~key:GdkKeysyms._O "Open session"
    ~callback:(fun () ->
      select_file ~request:(fun f ->
        (* Clearing the ide tree *)
        clear_tree_and_table goals_model;
        send_request (Open_session_req f)))

Clément Fumex's avatar
Clément Fumex committed
1046 1047 1048 1049 1050 1051
(*************************)
(* Notification Handling *)
(*************************)

let treat_message_notification msg = match msg with
  (* TODO: do something ! *)
MARCHE Claude's avatar
MARCHE Claude committed
1052 1053 1054 1055 1056 1057 1058 1059
  | Proof_error (_id, s)   -> print_message "%s" s
  | Transf_error (_id, s)  -> print_message "%s" s
  | Strat_error (_id, s)   -> print_message "%s" s
  | Replay_Info s          -> print_message "%s" s
  | Query_Info (_id, s)    -> print_message "%s" s
  | Query_Error (_id, s)   -> print_message "%s" s
  | Help s                 -> print_message "%s" s
  | Information s          -> print_message "%s" s
Clément Fumex's avatar
Clément Fumex committed
1060
  | Task_Monitor (t, s, r) -> update_monitor t s r
MARCHE Claude's avatar
MARCHE Claude committed
1061
  | Open_File_Error s      -> print_message "%s" s
1062
  | Parse_Or_Type_Error s  -> print_message "%s" s
1063
  | File_Saved s           -> print_message "%s was saved" s
1064 1065
  | Error s                ->
      if Debug.test_flag debug then
MARCHE Claude's avatar
MARCHE Claude committed
1066
        print_message "%s" s
1067
      else
MARCHE Claude's avatar
MARCHE Claude committed
1068
        print_message "%s" "Request failed. You can get details using --debug ide_info"
Clément Fumex's avatar
Clément Fumex committed
1069

Sylvain Dailler's avatar
Sylvain Dailler committed
1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099

(***********************)
(* First Unproven goal *)
(***********************)

let is_goal node =
  get_node_type node = NGoal

let proved node =
  get_node_proved node

let children node =
  let iter = (get_node_row node)#iter in
  let n = goals_model#iter_n_children (Some iter) in
  let acc = ref [] in
  for i = 0 to (n-1) do
    let new_iter = goals_model#iter_children ?nth:(Some i) (Some iter) in
    let child_node = get_node_id new_iter in
    if (get_node_type child_node != NProofAttempt) then
      acc := child_node :: !acc
  done;
  !acc

let get_parent node =
  let iter = (get_node_row node)#iter in
  let parent_iter = goals_model#iter_parent iter in
  match parent_iter with
  | None -> None
  | Some parent -> Some (get_node_id parent)

1100 1101 1102 1103
let if_selected_alone id f =
  match get_selected_row_references () with
  | [r] ->
     let i = get_node_id r#iter in
1104
     if i = id || Some i = get_parent id then f id
1105 1106
  | _ -> ()

MARCHE Claude's avatar
MARCHE Claude committed
1107
let treat_notification n =
1108
  begin match n with
Sylvain Dailler's avatar
Sylvain Dailler committed
1109
  | Node_change (id, uinfo)        ->
1110 1111 1112
     begin
       match uinfo with
       | Proved b ->
1113 1114 1115 1116 1117
           Hint.replace node_id_proved id b;
           set_status_column (get_node_row id)#iter;
           (* Trying to move cursor on first unproven goal around on all cases
              but not when proofAttempt is updated because ad hoc debugging. *)
           send_request (Get_first_unproven_node id)
1118
       | Proof_status_change (pa, obs, l) ->
Sylvain Dailler's avatar
Sylvain Dailler committed
1119 1120 1121
          let r = get_node_row id in
          Hint.replace node_id_pa id (pa, obs, l);
          goals_model#set ~row:r#iter ~column:status_column
1122
                          (image_of_pa_status ~obsolete:obs pa)
1123 1124 1125 1126 1127 1128
     end
  | Next_Unproven_Node_Id (asked_id, next_unproved_id) ->
      if_selected_alone asked_id
          (fun _ ->
            let iter = (get_node_row next_unproved_id)#iter in
            goals_view#selection#select_iter iter)
1129
  | New_node (id, parent_id, typ, name, detached) ->
1130
     begin
MARCHE Claude's avatar
MARCHE Claude committed
1131 1132 1133 1134 1135
       let name =
         if typ = NGoal then
           List.hd (Strings.rev_split '.' name)
         else name
       in
1136 1137 1138 1139 1140 1141
       try
         let parent = get_node_row parent_id in
         ignore (new_node ~parent id name typ false detached)
       with Not_found ->
         ignore (new_node id name typ false detached)
     end
1142
  | Remove id                     ->
1143 1144 1145 1146 1147 1148
     let n = get_node_row id in
     ignore (goals_model#remove(n#iter));
     Hint.remove node_id_to_gtree id;
     Hint.remove node_id_type id;
     Hint.remove node_id_proved id;
     Hint.remove node_id_pa id
Clément Fumex's avatar
Clément Fumex committed
1149
  | Initialized g_info            ->
1150 1151
     (* TODO: treat other *)
     init_completion g_info.provers g_info.transformations g_info.commands;
MARCHE Claude's avatar
MARCHE Claude committed
1152
  | Saved                         ->
1153 1154 1155 1156
      session_needs_saving := false;
      print_message "Session saved.";
      if !quit_on_saved = true then
        exit_function_safe ()
Clément Fumex's avatar
Clément Fumex committed
1157
  | Message (msg)                 -> treat_message_notification msg
1158 1159 1160 1161 1162 1163
  | Task (id, s)                  ->
     if_selected_alone
       id
       (fun _ -> task_view#source_buffer#set_text s;
                 (* scroll to end of text *)
                 task_view#scroll_to_mark `INSERT)
1164 1165 1166 1167 1168 1169 1170 1171
  | File_contents (file_name, content) ->
    begin
      try
        let (_, sc_view) = Hstr.find source_view_table file_name in
        sc_view#source_buffer#set_text content
      with
      | Not_found -> create_source_view file_name content
    end
MARCHE Claude's avatar
MARCHE Claude committed
1172
  | Dead _ ->
1173
     print_message "Serveur sent an unexpected notification '%a'. Please report." print_notify n
1174 1175 1176 1177 1178
  end;
  (* temporary: this should be better executed each time
     one clicks on the tree view *)
(*  command_entry#misc#grab_focus () *)
  ()
MARCHE Claude's avatar
MARCHE Claude committed
1179

1180

MARCHE Claude's avatar
MARCHE Claude committed
1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203

(*************)
(* Help menu *)
(*************)


let help_menu = factory#add_submenu "_Help"
let help_factory = new GMenu.factory help_menu ~accel_group

let (_ : GMenu.image_menu_item) =
  help_factory#add_image_item
    ~label:"Legend"
    ~callback:show_legend_window
    ()

let (_ : GMenu.image_menu_item) =
  help_factory#add_image_item
    ~label:"About"