why3ide.ml 9.42 KB
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open Format
open Why3
open Gconfig
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open Stdlib
open Session_itp
open Controller_itp
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let debug = Debug.lookup_flag "ide_info"

(************************)
(* parsing command line *)
(************************)

let files = 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";
(*
  "-f",
   Arg.String (fun s -> input_files := s :: !input_files),
   "<file> add file to the project (ignored if it is already there)";
*)
  Termcode.arg_extra_expl_prefix
]

let usage_str = sprintf
  "Usage: %s [options] [<file.why>|<project directory>]..."
  (Filename.basename Sys.argv.(0))

let gconfig = try
  let config, base_config, env =
    Whyconf.Args.initialize spec (fun f -> Queue.add f files) usage_str in
  if Queue.is_empty files then Whyconf.Args.exit_with_usage spec usage_str;
  Gconfig.load_config config base_config env;
  Gconfig.config ()

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

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let task_driver =
  let main = Whyconf.get_main gconfig.config in
  let d = Filename.concat (Whyconf.datadir main)
                          (Filename.concat "drivers" "why3_itp.drv")
  in
  Driver.load_driver gconfig.env d []


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let provers : Whyconf.config_prover Whyconf.Mprover.t =
  Whyconf.get_provers gconfig.config

let cont =
  Session_user_interface.cont_from_files spec usage_str gconfig.env files provers

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let () =
  Debug.dprintf debug "[GUI] Init the GTK interface...@?";
  ignore (GtkMain.Main.init ());
  Debug.dprintf debug " done.@.";
  Gconfig.init ()

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(**********************)
(* Graphical elements *)
(**********************)
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let main_window =
  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

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

let exit_function ~destroy () =
  ignore(destroy); GMain.quit ()

let (_ : GtkSignal.id) = main_window#connect#destroy
  ~callback:(exit_function ~destroy:true)

let (_ : GMenu.menu_item) =
  file_factory#add_item ~key:GdkKeysyms._Q "_Quit"
    ~callback:(exit_function ~destroy:false)

(* 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
     2.2.2 a vertical box
*)

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

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let vbox222 = GPack.vbox ~packing:hp#add ()

(*  the scrolled window 2.2.1 contains a GTK tree

*)


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(* view for the session tree *)
let scrolled_session_view =
  GBin.scrolled_window
    ~hpolicy: `AUTOMATIC ~vpolicy: `AUTOMATIC
    ~shadow_type:`ETCHED_OUT
    ~packing:scrollview#add
    ()

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let cols = new GTree.column_list
let name_column = cols#add Gobject.Data.string
let index_column = cols#add Gobject.Data.int
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let name_renderer = GTree.cell_renderer_text [`XALIGN 0.]
let view_name_column = GTree.view_column ~title:"Theories/Goals" ()
let () =
  view_name_column#pack name_renderer;
  view_name_column#add_attribute name_renderer "text" name_column
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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
 *)
  ignore (view#append_column view_name_column);
(*
  ignore (view#append_column view_status_column);
  ignore (view#append_column view_time_column);
*)
  Debug.dprintf debug " done@.";
  model,view
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(* vbox222 contains:
   2.2.2.1 a view of the current task
   2.2.2.2 a input field to type commands
 *)

let scrolled_task_view =
  GBin.scrolled_window
    ~hpolicy: `AUTOMATIC ~vpolicy: `AUTOMATIC
    ~shadow_type:`ETCHED_OUT
    ~packing:vbox222#add
    ()

let task_view =
  GSourceView2.source_view
    ~editable:false
    ~show_line_numbers:true
    ~packing:scrolled_task_view#add
    ()


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let command_entry = GEdit.entry ~packing:vbox222#add ()
let message_zone =
  GText.view ~editable:false ~cursor_visible:false
             ~packing:vbox222#add ()


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(********************************************)
(* controller instance on the GTK scheduler *)
(********************************************)


module S = struct
    let idle ~prio f =
      let (_ : GMain.Idle.id) = GMain.Idle.add ~prio f in ()

    let timeout ~ms f =
      let (_ : GMain.Timeout.id) = GMain.Timeout.add ~ms ~callback:f in
      ()
end

module C = Controller_itp.Make(S)


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


type index =
  | Inone
  | IproofNode of proofNodeID
  | Ifile of file
  | Itheory of theory

let model_index : index Hint.t = Stdlib.Hint.create 17

let new_node =
  let cpt = ref (-1) in
  fun ?parent name ind ->
  incr cpt;
  Hint.add model_index !cpt ind;
  let parent = Opt.map (fun x -> x#iter) parent in
  let iter = goals_model#append ?parent () in
  goals_model#set ~row:iter ~column:name_column name;
  goals_model#set ~row:iter ~column:index_column !cpt;
  goals_model#get_row_reference (goals_model#get_path iter)

let build_subtree_from_goal ses th_row_reference id =
  let name = get_proof_name ses id in
  let _row_ref =
    new_node ~parent:th_row_reference name.Ident.id_string
             (IproofNode id)
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  in
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  (* TODO: continue to add transformations and subgoals as sub-trees *)
  ()

let build_tree_from_session ses =
  let files = get_files ses in
  Stdlib.Hstr.iter
    (fun _ file ->
       let file_row_reference = new_node file.file_name (Ifile file) in
       List.iter (fun th ->
                  let th_row_reference =
                    new_node ~parent:file_row_reference
                             (theory_name th).Ident.id_string
                             (Itheory th)
                  in
                  List.iter (build_subtree_from_goal ses th_row_reference)
                            (theory_goals th))
                 file.file_theories)
    files

(******************)
(*    actions     *)
(******************)

let current_selected_index = ref Inone

let run_strategy_on_task s =
  match !current_selected_index with
  | IproofNode id ->
     let l = Session_user_interface.strategies
               cont.controller_env gconfig.config
     in
     let st = List.filter (fun (_,c,_,_) -> c=s) l in
     begin
       match st with
       | [(n,_,_,st)] ->
          printf "running strategy '%s'@." n;
          let callback sts =
            printf "Strategy status: %a@." print_strategy_status sts
          in
          C.run_strategy_on_goal cont id st ~callback
    | _ -> printf "Strategy '%s' not found@." s
     end
  | _ -> ()



let clear_command_entry () = command_entry#set_text ""
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let interp cmd =
  match cmd with
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    | "s" -> clear_command_entry ();
             run_strategy_on_task "1"
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    | _ -> message_zone#buffer#set_text ("unknown command '"^cmd^"'")

let (_ : GtkSignal.id) =
  command_entry#connect#activate
    ~callback:(fun () -> interp command_entry#text)
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let get_selected_row_references () =
  List.map
    (fun path -> goals_model#get_row_reference path)
    goals_view#selection#get_selected_rows

let on_selected_row r =
  let index = goals_model#get ~row:r#iter ~column:index_column in
  try
    let index = Hint.find model_index index in
    current_selected_index := index;
    match index with
    | IproofNode id ->
       let task = get_task cont.controller_session id in
       let s = Pp.string_of
                 (Driver.print_task ~cntexample:false task_driver)
                 task
       in task_view#source_buffer#set_text s
    | _ -> task_view#source_buffer#set_text ""
  with
    | Not_found -> task_view#source_buffer#set_text ""

let (_ : GtkSignal.id) =
  goals_view#selection#connect#after#changed ~callback:
    (fun () ->
      match get_selected_row_references () with
        | [r] -> on_selected_row r
        | _ -> ())

(***********************)
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(* start the interface *)
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(***********************)
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let () =
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  build_tree_from_session cont.controller_session;
  (* temporary *)
  goals_view#expand_all ();
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  main_window#add_accel_group accel_group;
  main_window#set_icon (Some !Gconfig.why_icon);
  main_window#show ();
  GMain.main ()