a) fix editor hscroller to follow PT behaviour - scrollbar always

   covers 0...full session + 10% of current zoom page size
b) add "big meter" mode to tranzport and fix more bugs with tranzport
   support


git-svn-id: svn://localhost/trunk/ardour2@455 d708f5d6-7413-0410-9779-e7cbd77b26cf

3 files changed, 26 insertions, 18 deletions

diff --git a/libs/ardour/ardour/session.h b/libs/ardour/ardour/session.h
index 201cc48ada..924a482936 100644
--- a/libs/ardour/ardour/session.h
+++ b/libs/ardour/ardour/session.h
@@ -365,6 +365,7 @@ class Session : public sigc::trackable, public Stateful
 
 	int remove_region_from_region_list (Region&);
 
+	jack_nframes_t get_maximum_extent () const;
 	jack_nframes_t current_end_frame() const { return end_location->start(); }
 	jack_nframes_t current_start_frame() const { return start_location->start(); }
 	jack_nframes_t frame_rate() const   { return _current_frame_rate; }
diff --git a/libs/ardour/control_protocol.cc b/libs/ardour/control_protocol.cc
index 2a28921d53..1e4bd8efc9 100644
--- a/libs/ardour/control_protocol.cc
+++ b/libs/ardour/control_protocol.cc
@@ -153,6 +153,8 @@ ControlProtocol::thread_work ()
 	struct sched_param rtparam;
 	int err;
 
+	cerr << _name << " receiver thread running\n";
+
 	memset (&rtparam, 0, sizeof (rtparam));
 	rtparam.sched_priority = 3; /* XXX should be relative to audio (JACK) thread */
 	
@@ -238,15 +240,12 @@ ControlProtocol::thread_work ()
 			continue;
 		}
 
-		if (send()) {
-			
-			if (send_route_feedback ()) {
-				list<Route*> routes = session.get_routes(); /* copies the routes */
-				send_route_feedback (routes);
-			}
-
-			send_global_feedback ();
+		if (send_route_feedback ()) {
+			list<Route*> routes = session.get_routes(); /* copies the routes */
+			send_route_feedback (routes);
 		}
+		
+		send_global_feedback ();
 	}
 
 	return 0;
diff --git a/libs/ardour/session.cc b/libs/ardour/session.cc
index 216517e668..125e0387f3 100644
--- a/libs/ardour/session.cc
+++ b/libs/ardour/session.cc
@@ -2227,29 +2227,37 @@ Session::route_by_remote_id (uint32_t id)
 void
 Session::find_current_end ()
 {
-	jack_nframes_t max = 0;
-	jack_nframes_t me; 
-
 	if (_state_of_the_state & Loading) {
 		return;
 	}
 
+	jack_nframes_t max = get_maximum_extent ();
+
+	if (max > end_location->end()) {
+		end_location->set_end (max);
+		set_dirty();
+		DurationChanged(); /* EMIT SIGNAL */
+	}
+}
+
+jack_nframes_t
+Session::get_maximum_extent () const
+{
+	jack_nframes_t max = 0;
+	jack_nframes_t me; 
+
 	/* Don't take the diskstream lock. Caller must have other ways to
 	   ensure atomicity.
 	*/
 
-	for (DiskStreamList::iterator i = diskstreams.begin(); i != diskstreams.end(); ++i) {
+	for (DiskStreamList::const_iterator i = diskstreams.begin(); i != diskstreams.end(); ++i) {
 		Playlist* pl = (*i)->playlist();
 		if ((me = pl->get_maximum_extent()) > max) {
 			max = me;
 		}
 	}
-	
-	if (max > end_location->end()) {
-		end_location->set_end (max);
-		set_dirty();
-		DurationChanged(); /* EMIT SIGNAL */
-	}
+
+	return max;
 }
 
 DiskStream *