- Fix JumpTo dialog the better I can. Now it should work.

- TODO: manage exceptions both in Simulation::jump_to()
and in JumpToDialog
- TODO: check the semantic of _target_instant, maybe its value
is 1 more than expected?


git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@1036 3ecf2c5c-341e-0410-92b4-d18e462d057c

src/backend/concrete_simulation.cc

@@ -19,6 +19,7 @@
 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 
 #include "concrete_simulation.hh"
+
 #include <sgpemv2/simulation_observer.hh>
 #include <sgpemv2/scheduler.hh>
 #include <sgpemv2/cpu_policies_gatekeeper.hh>
@@ -61,7 +62,7 @@ ConcreteSimulation::jump_to(History::position p) throw(UserInterruptException, N
   switch (_state)
   {
   case state_running:
-    // pauses the simulation (see below)
+    // pauses the simulation (done below)
  		break;
   case state_stopped:
     _history.set_front(0);
@@ -72,7 +73,6 @@ ConcreteSimulation::jump_to(History::position p) throw(UserInterruptException, N
 
   // Disable momentarily updates for registered observers on 
   // sgpem::Simulation too.
-  // See History for an example of how to implement this.
   set_notify_enabled(false);
 	pause();
 
@@ -83,8 +83,16 @@ ConcreteSimulation::jump_to(History::position p) throw(UserInterruptException, N
   History::position increment = 0;
 	while (yet_to_finish && p > _history.get_front() + increment)
   {
-		yet_to_finish = step();
-    increment++;
+    try
+      {
+        yet_to_finish = step();
+        increment++;
+      }
+    catch(...)
+      {
+        // FIXME: manage exceptions! Lookout that notifications
+        // have to be re-enabled.
+      }
   }
   get_history().set_front(std::min(p, _history.get_size()));
 	if (!yet_to_finish)