X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2FmatitaGui.ml;h=adb9bf753fc05fa9f05fa21be0451177383fc469;hb=e480ed0d9242f2e505cf28e175262c841bc470c2;hp=7270603a9636b7ebcd4be445ce9350b0757dfefb;hpb=f27b26f3f3d2300b11aa4d68dbe823e15ffbdf1c;p=helm.git

diff --git a/matita/matitaGui.ml b/matita/matitaGui.ml
index 7270603a9..adb9bf753 100644
--- a/matita/matitaGui.ml
+++ b/matita/matitaGui.ml
@@ -415,17 +415,42 @@ class gui () =
       let lock_world _ =
         main#buttonsToolbar#misc#set_sensitive false;
         develList#buttonsHbox#misc#set_sensitive false;
+        main#scriptMenu#misc#set_sensitive false;
         source_view#set_editable false
       in
       let unlock_world _ =
         main#buttonsToolbar#misc#set_sensitive true;
         develList#buttonsHbox#misc#set_sensitive true;
+        main#scriptMenu#misc#set_sensitive true;
         source_view#set_editable true
       in
-      let locker f = 
+      let worker_thread = ref None in
+      let locker f () =
+       let thread_main =
         fun () -> 
           lock_world ();
-          try f ();unlock_world () with exc -> unlock_world (); raise exc in
+          try f ();unlock_world () with exc -> unlock_world (); raise exc
+       in
+        worker_thread := Some (Thread.create thread_main ()) in
+      let kill_worker =
+       (* the following lines are from Xavier Leroy: http://alan.petitepomme.net/cwn/2005.11.08.html *)
+       let interrupt = ref None in
+       let old_callback = ref (function _ -> ()) in
+       let force_interrupt n =
+         (* This function is called just before the thread's timeslice ends *)
+         !old_callback n;
+         if Some(Thread.id(Thread.self())) = !interrupt then
+          (interrupt := None; raise Sys.Break) in
+       let _ =
+        match Sys.signal Sys.sigvtalrm (Sys.Signal_handle force_interrupt) with
+           Sys.Signal_handle f -> old_callback := f
+         | Sys.Signal_ignore
+         | Sys.Signal_default -> assert false
+       in
+        fun () ->
+         match !worker_thread with
+            None -> assert false
+          | Some t -> interrupt := Some (Thread.id t) in
       let keep_focus f =
         fun () ->
          try
@@ -486,10 +511,19 @@ class gui () =
           match get_devel_selected () with
           | None -> ()
           | Some d -> 
-              let clean = locker 
-                (fun () -> MatitamakeLib.publish_development_in_bg refresh d)
-              in
-              ignore(clean ())));
+              let publish = locker (fun () ->
+                MatitamakeLib.publish_development_in_bg refresh d) in
+              ignore(publish ())));
+      connect_button develList#graphButton (fun () -> 
+        match get_devel_selected () with
+        | None -> ()
+        | Some d ->
+            (match MatitamakeLib.dot_for_development d with
+            | None -> ()
+            | Some _ ->
+                let browser = MatitaMathView.cicBrowser () in
+                browser#load (`Development
+                  (MatitamakeLib.name_for_development d))));
       connect_button develList#closeButton 
         (fun () -> develList#toplevel#misc#hide());
       ignore(develList#toplevel#event#connect#delete 
@@ -789,6 +823,7 @@ class gui () =
       connect_button main#scriptTopButton top;
       connect_button main#scriptBottomButton bottom;
       connect_button main#scriptJumpButton jump;
+      connect_button main#scriptAbortButton kill_worker;
       connect_menu_item main#scriptAdvanceMenuItem advance;
       connect_menu_item main#scriptRetractMenuItem retract;
       connect_menu_item main#scriptTopMenuItem top;