Smart scrolling during script advancement implemented.

[helm.git] / helm / matita / matitaScript.ml

diff --git a/helm/matita/matitaScript.ml b/helm/matita/matitaScript.ml
index aae0e93d78a857fcbf14587eaa736c59f9bd526a..e0e4227dd1f5709d921b4bd57f3bf8b0df6594dd 100644 (file)
--- a/helm/matita/matitaScript.ml
+++ b/helm/matita/matitaScript.ml
@@ -383,13 +383,15 @@ let fresh_script_id =
   let i = ref 0 in
   fun () -> incr i; !i
 
-class script ~(buffer: GText.buffer) ~(init: MatitaTypes.status) 
+class script  ~(view: GText.view)
+              ~(init: MatitaTypes.status) 
               ~(mathviewer: MatitaTypes.mathViewer) 
               ~set_star
               ~ask_confirmation
               ~urichooser 
               ~develcreator 
               () =
+let buffer = view#buffer in
 object (self)
   val scriptId = fresh_script_id ()
   
@@ -519,6 +521,12 @@ List.iter (fun s -> prerr_endline ("'" ^ s ^ "'")) new_statements;
         Incomplete_proof (_,goal) -> self#setGoal goal
       | _ -> ()
     end ;
+    let mark_position = buffer#get_iter_at_mark mark in
+    if view#move_mark_onscreen mark then
+     begin
+      buffer#move_mark mark mark_position;
+      view#scroll_to_mark ~use_align:true ~xalign:1.0 ~yalign:0.1 mark;
+     end;
     while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
 
   method clean_dirty_lock =
@@ -681,10 +689,10 @@ end
 
 let _script = ref None
 
-let script ~buffer ~init ~mathviewer ~urichooser ~develcreator ~ask_confirmation ~set_star ()
+let script ~view ~init ~mathviewer ~urichooser ~develcreator ~ask_confirmation ~set_star ()
 =
   let s = new script 
-    ~buffer ~init ~mathviewer ~ask_confirmation ~urichooser ~develcreator ~set_star () 
+    ~view ~init ~mathviewer ~ask_confirmation ~urichooser ~develcreator ~set_star () 
   in
   _script := Some s;
   s