part two of allow markup to be used in BoolOption items in an option editor
[ardour.git] / gtk2_ardour / ardour_ui.cc
index bbc5211c3ea90ed2cdc48ecaccbbf89fc75c67e7..5846fa577fb88073a2ba14f8861065124d9b3532 100644 (file)
@@ -35,6 +35,8 @@
 #include <iostream>
 
 #include <sys/resource.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
 
 #include <gtkmm/messagedialog.h>
 #include <gtkmm/accelmap.h>
 #include "midi++/manager.h"
 
 #include "ardour/ardour.h"
-#include "ardour/callback.h"
+#include "ardour/audioengine.h"
+#include "ardour/audiofilesource.h"
+#include "ardour/automation_watch.h"
+#include "ardour/diskstream.h"
+#include "ardour/filename_extensions.h"
+#include "ardour/port.h"
+#include "ardour/process_thread.h"
 #include "ardour/profile.h"
+#include "ardour/recent_sessions.h"
 #include "ardour/session_directory.h"
 #include "ardour/session_route.h"
 #include "ardour/session_state_utils.h"
 #include "ardour/session_utils.h"
-#include "ardour/port.h"
-#include "ardour/audioengine.h"
-#include "ardour/playlist.h"
-#include "ardour/utils.h"
-#include "ardour/audio_diskstream.h"
-#include "ardour/audiofilesource.h"
-#include "ardour/recent_sessions.h"
-#include "ardour/port.h"
-#include "ardour/audio_track.h"
-#include "ardour/midi_track.h"
-#include "ardour/filesystem_paths.h"
-#include "ardour/filename_extensions.h"
-#include "ardour/process_thread.h"
+#include "ardour/slave.h"
+
+#include "timecode/time.h"
 
 typedef uint64_t microseconds_t;
 
@@ -96,9 +95,11 @@ typedef uint64_t microseconds_t;
 #include "gui_thread.h"
 #include "keyboard.h"
 #include "location_ui.h"
+#include "main_clock.h"
 #include "missing_file_dialog.h"
 #include "missing_plugin_dialog.h"
 #include "mixer_ui.h"
+#include "mouse_cursors.h"
 #include "opts.h"
 #include "processor_box.h"
 #include "prompter.h"
@@ -120,6 +121,7 @@ using namespace ARDOUR;
 using namespace PBD;
 using namespace Gtkmm2ext;
 using namespace Gtk;
+using namespace std;
 
 ARDOUR_UI *ARDOUR_UI::theArdourUI = 0;
 UIConfiguration *ARDOUR_UI::ui_config = 0;
@@ -129,19 +131,17 @@ sigc::signal<void>      ARDOUR_UI::RapidScreenUpdate;
 sigc::signal<void>      ARDOUR_UI::SuperRapidScreenUpdate;
 sigc::signal<void, framepos_t, bool, framepos_t> ARDOUR_UI::Clock;
 
-bool could_be_a_valid_path (const string& path);
-
-ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
+ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], const char* localedir)
 
        : Gtkmm2ext::UI (PROGRAM_NAME, argcp, argvp)
 
        , gui_object_state (new GUIObjectState)
-       , primary_clock (new AudioClock (X_("primary"), false, X_("TransportClockDisplay"), true, true, false, true))
-       , secondary_clock (new AudioClock (X_("secondary"), false, X_("SecondaryClockDisplay"), true, true, false, true))
+       , primary_clock (new MainClock (X_("primary"), false, X_("transport"), true, true, true, false, true))
+       , secondary_clock (new MainClock (X_("secondary"), false, X_("secondary"), true, true, false, false, true))
 
          /* big clock */
 
-       , big_clock (new AudioClock (X_("bigclock"), false, "BigClockNonRecording", true, true, false, false))
+       , big_clock (new AudioClock (X_("bigclock"), false, "big", true, true, false, false))
 
          /* transport */
 
@@ -153,33 +153,21 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
        , play_selection_controllable (new TransportControllable ("transport play selection", *this, TransportControllable::PlaySelection))
        , rec_controllable (new TransportControllable ("transport rec-enable", *this, TransportControllable::RecordEnable))
 
-       , auto_return_button (_("Auto Return"))
-       , auto_play_button (_("Auto Play"))
-       , auto_input_button (_("Auto Input"))
-         // , click_button (_("Click"))
-       , time_master_button (_("time\nmaster"))
+       , auto_return_button (ArdourButton::led_default_elements)
+       , follow_edits_button (ArdourButton::led_default_elements)
+       , auto_input_button (ArdourButton::led_default_elements)
 
-       , auditioning_alert_button (_("AUDITION"))
-       , solo_alert_button (_("SOLO"))
+       , auditioning_alert_button (_("audition"))
+       , solo_alert_button (_("solo"))
+       , feedback_alert_button (_("feedback"))
 
        , error_log_button (_("Errors"))
 
        , _status_bar_visibility (X_("status-bar"))
+       , _feedback_exists (false)
 
 {
-       using namespace Gtk::Menu_Helpers;
-
-       Gtkmm2ext::init();
-
-
-#ifdef TOP_MENUBAR
-       // _auto_display_errors = false;
-       /*
-        * This was commented out as it wasn't defined
-        * in A3 IIRC.  If this is not needed it should
-        * be completely removed.
-        */
-#endif
+       Gtkmm2ext::init(localedir);
 
        about = 0;
        splash = 0;
@@ -204,7 +192,6 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
        big_clock_resize_in_progress = false;
        session_selector_window = 0;
        last_key_press_time = 0;
-       _will_create_new_session_automatically = false;
        add_route_dialog = 0;
        route_params = 0;
        bundle_manager = 0;
@@ -235,17 +222,11 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
        auto_loop_button.set_name ("transport button");
        play_selection_button.set_name ("transport button");
        rec_button.set_name ("transport recenable button");
-       join_play_range_button.set_name ("transport button");
-
-       roll_button.set_tweaks (ArdourButton::ShowHover);
-       stop_button.set_tweaks (ArdourButton::ShowHover);
-       auto_loop_button.set_tweaks (ArdourButton::ShowHover);
-       play_selection_button.set_tweaks (ArdourButton::ShowHover);
-       rec_button.set_tweaks (ArdourButton::ShowHover);
-       join_play_range_button.set_tweaks (ArdourButton::ShowHover);
+       midi_panic_button.set_name ("transport button");
 
-       goto_start_button.set_tweaks (ArdourButton::Tweaks(ArdourButton::ShowClick|ArdourButton::ShowHover));
-       goto_end_button.set_tweaks (ArdourButton::Tweaks(ArdourButton::ShowClick|ArdourButton::ShowHover));
+       goto_start_button.set_tweaks (ArdourButton::ShowClick);
+       goto_end_button.set_tweaks (ArdourButton::ShowClick);
+       midi_panic_button.set_tweaks (ArdourButton::ShowClick);
        
        last_configure_time= 0;
        last_peak_grab = 0;
@@ -255,7 +236,7 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
 
        /* handle dialog requests */
 
-       ARDOUR::Session::Dialog.connect (forever_connections, MISSING_INVALIDATOR, ui_bind (&ARDOUR_UI::session_dialog, this, _1), gui_context());
+       ARDOUR::Session::Dialog.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::session_dialog, this, _1), gui_context());
 
        /* handle pending state with a dialog (PROBLEM: needs to return a value and thus cannot be x-thread) */
 
@@ -267,7 +248,12 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
 
        /* handle requests to quit (coming from JACK session) */
 
-       ARDOUR::Session::Quit.connect (forever_connections, MISSING_INVALIDATOR, ui_bind (&ARDOUR_UI::finish, this), gui_context ());
+       ARDOUR::Session::Quit.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::finish, this), gui_context ());
+
+       /* tell the user about feedback */
+
+       ARDOUR::Session::FeedbackDetected.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::feedback_detected, this), gui_context ());
+       ARDOUR::Session::SuccessfulGraphSort.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::successful_graph_sort, this), gui_context ());
 
        /* handle requests to deal with missing files */
 
@@ -280,16 +266,13 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
        /* lets get this party started */
 
        try {
-               if (ARDOUR::init (ARDOUR_COMMAND_LINE::use_vst, ARDOUR_COMMAND_LINE::try_hw_optimization)) {
+               if (ARDOUR::init (ARDOUR_COMMAND_LINE::use_vst, ARDOUR_COMMAND_LINE::try_hw_optimization, localedir)) {
                        throw failed_constructor ();
                }
 
                setup_gtk_ardour_enums ();
                setup_profile ();
 
-               GainMeter::setup_slider_pix ();
-               RouteTimeAxisView::setup_slider_pix ();
-               SendProcessorEntry::setup_slider_pix ();
                SessionEvent::create_per_thread_pool ("GUI", 512);
 
        } catch (failed_constructor& err) {
@@ -339,39 +322,11 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
 
        _process_thread = new ProcessThread ();
        _process_thread->init ();
-}
 
-/** @return true if a session was chosen and `apply' clicked, otherwise false if `cancel' was clicked */
-bool
-ARDOUR_UI::run_startup (bool should_be_new, string load_template)
-{
-       delete _startup;
-       _startup = new ArdourStartup ();
-
-       XMLNode* audio_setup = Config->extra_xml ("AudioSetup");
-
-       if (audio_setup && _startup->engine_control()) {
-               _startup->engine_control()->set_state (*audio_setup);
-       }
-
-       _startup->set_new_only (should_be_new);
-       if (!load_template.empty()) {
-               _startup->set_load_template( load_template );
-       }
-       _startup->present ();
-
-       main().run();
-
-       _startup->hide ();
-
-       switch (_startup->response()) {
-       case RESPONSE_OK:
-               return true;
-       default:
-               return false;
-       }
+       DPIReset.connect (sigc::mem_fun (*this, &ARDOUR_UI::resize_text_widgets));
 }
 
+
 int
 ARDOUR_UI::create_engine ()
 {
@@ -393,7 +348,7 @@ ARDOUR_UI::create_engine ()
 
        engine->Stopped.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::engine_stopped, this), gui_context());
        engine->Running.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::engine_running, this), gui_context());
-       engine->SampleRateChanged.connect (forever_connections, MISSING_INVALIDATOR, ui_bind (&ARDOUR_UI::update_sample_rate, this, _1), gui_context());
+       engine->SampleRateChanged.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::update_sample_rate, this, _1), gui_context());
 
        engine->Halted.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::engine_halted, this, _1, false));
 
@@ -412,7 +367,10 @@ ARDOUR_UI::post_engine ()
 
        ARDOUR::init_post_engine ();
 
+       /* load up the UI manager */
+
        ActionManager::init ();
+
        _tooltips.enable();
 
        if (setup_windows ()) {
@@ -441,7 +399,7 @@ ARDOUR_UI::post_engine ()
                vector<string>::iterator n;
                vector<string>::iterator k;
                for (n = names.begin(), k = keys.begin(); n != names.end(); ++n, ++k) {
-                       cerr << "Action: " << (*n) << " bound to " << (*k) << endl;
+                       cout << "Action: " << (*n) << " bound to " << (*k) << endl;
                }
 
                exit (0);
@@ -469,14 +427,15 @@ ARDOUR_UI::post_engine ()
 #ifndef GTKOSX
        /* OS X provides a nearly-always visible wallclock, so don't be stupid */
        update_wall_clock ();
-       Glib::signal_timeout().connect (sigc::mem_fun(*this, &ARDOUR_UI::update_wall_clock), 60000);
+       Glib::signal_timeout().connect_seconds (sigc::mem_fun(*this, &ARDOUR_UI::update_wall_clock), 1);
 #endif
 
        update_disk_space ();
        update_cpu_load ();
        update_sample_rate (engine->frame_rate());
+       update_timecode_format ();
 
-       Config->ParameterChanged.connect (forever_connections, MISSING_INVALIDATOR, ui_bind (&ARDOUR_UI::parameter_changed, this, _1), gui_context());
+       Config->ParameterChanged.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::parameter_changed, this, _1), gui_context());
        boost::function<void (string)> pc (boost::bind (&ARDOUR_UI::parameter_changed, this, _1));
        Config->map_parameters (pc);
 
@@ -501,11 +460,10 @@ ARDOUR_UI::~ARDOUR_UI ()
 }
 
 void
-ARDOUR_UI::pop_back_splash ()
+ARDOUR_UI::pop_back_splash (Gtk::Window& win)
 {
        if (Splash::instance()) {
-               // Splash::instance()->pop_back();
-               Splash::instance()->hide ();
+               Splash::instance()->pop_back_for (win);
        }
 }
 
@@ -524,7 +482,6 @@ ARDOUR_UI::configure_timeout ()
                return true;
        } else {
                have_configure_timeout = false;
-               cerr << "config event-driven save\n";
                save_ardour_state ();
                return false;
        }
@@ -572,7 +529,6 @@ ARDOUR_UI::set_transport_controllable_state (const XMLNode& node)
        if ((prop = node.property ("shuttle")) != 0) {
                shuttle_box->controllable()->set_id (prop->value());
        }
-
 }
 
 XMLNode&
@@ -644,59 +600,6 @@ ARDOUR_UI::update_autosave ()
        }
 }
 
-void
-ARDOUR_UI::backend_audio_error (bool we_set_params, Gtk::Window* toplevel)
-{
-       string title;
-       if (we_set_params) {
-               title = string_compose (_("%1 could not start JACK"), PROGRAM_NAME);
-       } else {
-               title = string_compose (_("%1 could not connect to JACK."), PROGRAM_NAME);
-       }
-
-       MessageDialog win (title,
-                          false,
-                          Gtk::MESSAGE_INFO,
-                          Gtk::BUTTONS_NONE);
-
-       if (we_set_params) {
-               win.set_secondary_text(_("There are several possible reasons:\n\
-\n\
-1) You requested audio parameters that are not supported..\n\
-2) JACK is running as another user.\n\
-\n\
-Please consider the possibilities, and perhaps try different parameters."));
-       } else {
-               win.set_secondary_text(_("There are several possible reasons:\n\
-\n\
-1) JACK is not running.\n\
-2) JACK is running as another user, perhaps root.\n\
-3) There is already another client called \"ardour\".\n\
-\n\
-Please consider the possibilities, and perhaps (re)start JACK."));
-       }
-
-       if (toplevel) {
-               win.set_transient_for (*toplevel);
-       }
-
-       if (we_set_params) {
-               win.add_button (Stock::OK, RESPONSE_CLOSE);
-       } else {
-               win.add_button (Stock::QUIT, RESPONSE_CLOSE);
-       }
-
-       win.set_default_response (RESPONSE_CLOSE);
-
-       win.show_all ();
-       win.set_position (Gtk::WIN_POS_CENTER);
-       pop_back_splash ();
-
-       /* we just don't care about the result, but we want to block */
-
-       win.run ();
-}
-
 void
 ARDOUR_UI::startup ()
 {
@@ -758,8 +661,14 @@ ARDOUR_UI::check_memory_locking ()
                struct rlimit limits;
                int64_t ram;
                long pages, page_size;
-
-               if ((page_size = sysconf (_SC_PAGESIZE)) < 0 ||(pages = sysconf (_SC_PHYS_PAGES)) < 0) {
+#ifdef __FreeBSD__
+               size_t pages_len=sizeof(pages);
+               if ((page_size = getpagesize()) < 0 ||
+                               sysctlbyname("hw.availpages", &pages, &pages_len, NULL, 0))
+#else
+               if ((page_size = sysconf (_SC_PAGESIZE)) < 0 ||(pages = sysconf (_SC_PHYS_PAGES)) < 0)
+#endif
+               {
                        ram = 0;
                } else {
                        ram = (int64_t) pages * (int64_t) page_size;
@@ -779,22 +688,30 @@ ARDOUR_UI::check_memory_locking ()
                                                  "This might cause %1 to run out of memory before your system "
                                                  "runs out of memory. \n\n"
                                                  "You can view the memory limit with 'ulimit -l', "
-                                                 "and it is normally controlled by /etc/security/limits.conf"),
-                                               PROGRAM_NAME).c_str());
+                                                 "and it is normally controlled by %2"),
+                                               PROGRAM_NAME).c_str(), 
+#ifdef __FreeBSD__
+                                       X_("/etc/login.conf")
+#else
+                                       X_(" /etc/security/limits.conf")
+#endif
+                                       );
+
+                               msg.set_default_response (RESPONSE_OK);
 
                                VBox* vbox = msg.get_vbox();
                                HBox hbox;
                                CheckButton cb (_("Do not show this window again"));
 
                                cb.signal_toggled().connect (sigc::mem_fun (*this, &ARDOUR_UI::no_memory_warning));
-
+                               
                                hbox.pack_start (cb, true, false);
                                vbox->pack_start (hbox);
                                cb.show();
                                vbox->show();
                                hbox.show ();
 
-                               pop_back_splash ();
+                               pop_back_splash (msg);
 
                                editor->ensure_float (msg);
                                msg.run ();
@@ -822,12 +739,6 @@ void
 ARDOUR_UI::finish()
 {
        if (_session) {
-               int tries = 0;
-
-               if (_session->transport_rolling() && (++tries < 8)) {
-                       _session->request_stop (false, true);
-                       usleep (10000);
-               }
 
                if (_session->dirty()) {
                        vector<string> actions;
@@ -843,11 +754,11 @@ ARDOUR_UI::finish()
                                if (save_state_canfail ("")) {
                                        /* failed - don't quit */
                                        MessageDialog msg (*editor,
-                                                          _("\
-Ardour was unable to save your session.\n\n\
+                                                          string_compose (_("\
+%1 was unable to save your session.\n\n\
 If you still wish to quit, please use the\n\n\
-\"Just quit\" option."));
-                                       pop_back_splash();
+\"Just quit\" option."), PROGRAM_NAME));
+                                       pop_back_splash(msg);
                                        msg.run ();
                                        return;
                                }
@@ -869,6 +780,8 @@ If you still wish to quit, please use the\n\n\
        */
        save_ardour_state ();
 
+       loading_message (string_compose (_("Please wait while %1 cleans up..."), PROGRAM_NAME));
+
        if (_session) {
                // _session->set_deletion_in_progress ();
                _session->set_clean ();
@@ -951,12 +864,14 @@ ARDOUR_UI::ask_about_saving_session (const vector<string>& actions)
        return -1;
 }
 
+
 gint
 ARDOUR_UI::every_second ()
 {
        update_cpu_load ();
        update_buffer_load ();
        update_disk_space ();
+       update_timecode_format ();
        return TRUE;
 }
 
@@ -986,7 +901,7 @@ ARDOUR_UI::update_sample_rate (framecnt_t)
 
        if (!engine->connected()) {
 
-               snprintf (buf, sizeof (buf), _("disconnected"));
+               snprintf (buf, sizeof (buf), "%s", _("disconnected"));
 
        } else {
 
@@ -1015,29 +930,29 @@ ARDOUR_UI::update_format ()
        }
 
        stringstream s;
-       s << "File: <span foreground=\"green\">";
+       s << _("File:") << X_(" <span foreground=\"green\">");
 
        switch (_session->config.get_native_file_header_format ()) {
        case BWF:
-               s << "BWF";
+               s << _("BWF");
                break;
        case WAVE:
-               s << "WAV";
+               s << _("WAV");
                break;
        case WAVE64:
-               s << "WAV64";
+               s << _("WAV64");
                break;
        case CAF:
-               s << "CAF";
+               s << _("CAF");
                break;
        case AIFF:
-               s << "AIFF";
+               s << _("AIFF");
                break;
        case iXML:
-               s << "iXML";
+               s << _("iXML");
                break;
        case RF64:
-               s << "RF64";
+               s << _("RF64");
                break;
        }
 
@@ -1045,17 +960,17 @@ ARDOUR_UI::update_format ()
        
        switch (_session->config.get_native_file_data_format ()) {
        case FormatFloat:
-               s << "32-float";
+               s << _("32-float");
                break;
        case FormatInt24:
-               s << "24-int";
+               s << _("24-int");
                break;
        case FormatInt16:
-               s << "16-int";
+               s << _("16-int");
                break;
        }
 
-       s << "</span>";
+       s << X_("</span>");
 
        format_label.set_markup (s.str ());
 }
@@ -1065,7 +980,7 @@ ARDOUR_UI::update_cpu_load ()
 {
        char buf[64];
 
-       /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::build_menu_bar
+       /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::resize_text_widgets
           should also be changed.
        */
 
@@ -1082,7 +997,7 @@ ARDOUR_UI::update_buffer_load ()
        uint32_t const playback = _session ? _session->playback_load () : 100;
        uint32_t const capture = _session ? _session->capture_load () : 100;
 
-       /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::build_menu_bar
+       /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::resize_text_widgets
           should also be changed.
        */
        
@@ -1119,16 +1034,21 @@ ARDOUR_UI::update_disk_space()
                return;
        }
 
-       framecnt_t frames = _session->available_capture_duration();
+       boost::optional<framecnt_t> opt_frames = _session->available_capture_duration();
        char buf[64];
        framecnt_t fr = _session->frame_rate();
 
-       if (frames == max_framecnt) {
-               snprintf (buf, sizeof (buf), _("Disk: <span foreground=\"green\">24hrs+</span>"));
+       if (!opt_frames) {
+               /* Available space is unknown */
+               snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">Unknown</span>"));
+       } else if (opt_frames.get_value_or (0) == max_framecnt) {
+               snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">24hrs+</span>"));
        } else {
                rec_enabled_streams = 0;
                _session->foreach_route (this, &ARDOUR_UI::count_recenabled_streams);
 
+               framecnt_t frames = opt_frames.get_value_or (0);
+
                if (rec_enabled_streams) {
                        frames /= rec_enabled_streams;
                }
@@ -1138,60 +1058,78 @@ ARDOUR_UI::update_disk_space()
                int secs;
 
                hrs  = frames / (fr * 3600);
-               frames -= hrs * fr * 3600;
-               mins = frames / (fr * 60);
-               frames -= mins * fr * 60;
-               secs = frames / fr;
-
-               bool const low = (hrs == 0 && mins <= 30);
 
-               snprintf (
-                       buf, sizeof(buf),
-                       _("Disk: <span foreground=\"%s\">%02dh:%02dm:%02ds</span>"),
-                       low ? X_("red") : X_("green"),
-                       hrs, mins, secs
-                       );
+               if (hrs > 24) {
+                       snprintf (buf, sizeof (buf), "%s", _("Disk: <span foreground=\"green\">&gt;24 hrs</span>"));
+               } else {
+                       frames -= hrs * fr * 3600;
+                       mins = frames / (fr * 60);
+                       frames -= mins * fr * 60;
+                       secs = frames / fr;
+                       
+                       bool const low = (hrs == 0 && mins <= 30);
+                       
+                       snprintf (
+                               buf, sizeof(buf),
+                               _("Disk: <span foreground=\"%s\">%02dh:%02dm:%02ds</span>"),
+                               low ? X_("red") : X_("green"),
+                               hrs, mins, secs
+                               );
+               }
        }
 
        disk_space_label.set_markup (buf);
+}
+
+void
+ARDOUR_UI::update_timecode_format ()
+{
+       char buf[64];
 
-       // An attempt to make the disk space label flash red when space has run out.
+       if (_session) {
+               bool matching;
+               TimecodeSlave* tcslave;
+               SyncSource sync_src = Config->get_sync_source();
 
-       if (frames < fr * 60 * 5) {
-       /*      disk_space_box.style ("disk_space_label_empty"); */
+               if ((sync_src == LTC || sync_src == MTC) && (tcslave = dynamic_cast<TimecodeSlave*>(_session->slave())) != 0) {
+                       matching = (tcslave->apparent_timecode_format() == _session->config.get_timecode_format());
+               } else {
+                       matching = true;
+               }
+                       
+               snprintf (buf, sizeof (buf), S_("Timecode|TC: <span foreground=\"%s\">%s</span>"),
+                         matching ? X_("green") : X_("red"),
+                         Timecode::timecode_format_name (_session->config.get_timecode_format()).c_str());
        } else {
-       /*      disk_space_box.style ("disk_space_label"); */
+               snprintf (buf, sizeof (buf), "TC: n/a");
        }
 
-}
+       timecode_format_label.set_markup (buf);
+}      
 
 gint
 ARDOUR_UI::update_wall_clock ()
 {
        time_t now;
        struct tm *tm_now;
-       char buf[16];
+       static int last_min = -1;
 
        time (&now);
        tm_now = localtime (&now);
+       if (last_min != tm_now->tm_min) {
+               char buf[16];
+               sprintf (buf, "%02d:%02d", tm_now->tm_hour, tm_now->tm_min);
+               wall_clock_label.set_text (buf);
+               last_min = tm_now->tm_min;
+       }
 
-       sprintf (buf, "%02d:%02d", tm_now->tm_hour, tm_now->tm_min);
-       wall_clock_label.set_text (buf);
-
-       return TRUE;
-}
-
-gint
-ARDOUR_UI::session_menu (GdkEventButton */*ev*/)
-{
-       session_popup_menu->popup (0, 0);
        return TRUE;
 }
 
 void
 ARDOUR_UI::redisplay_recent_sessions ()
 {
-       std::vector<sys::path> session_directories;
+       std::vector<std::string> session_directories;
        RecentSessionsSorter cmp;
 
        recent_session_display.set_model (Glib::RefPtr<TreeModel>(0));
@@ -1204,7 +1142,7 @@ ARDOUR_UI::redisplay_recent_sessions ()
                recent_session_display.set_model (recent_session_model);
                return;
        }
-       //
+
        // sort them alphabetically
        sort (rs.begin(), rs.end(), cmp);
 
@@ -1212,10 +1150,10 @@ ARDOUR_UI::redisplay_recent_sessions ()
                session_directories.push_back ((*i).second);
        }
 
-       for (vector<sys::path>::const_iterator i = session_directories.begin();
+       for (vector<std::string>::const_iterator i = session_directories.begin();
                        i != session_directories.end(); ++i)
        {
-               std::vector<sys::path> state_file_paths;
+               std::vector<std::string> state_file_paths;
 
                // now get available states for this session
 
@@ -1223,18 +1161,17 @@ ARDOUR_UI::redisplay_recent_sessions ()
 
                vector<string*>* states;
                vector<const gchar*> item;
-               string fullpath = (*i).to_string();
+               string fullpath = *i;
 
                /* remove any trailing / */
 
-               if (fullpath[fullpath.length()-1] == '/') {
-                       fullpath = fullpath.substr (0, fullpath.length()-1);
+               if (fullpath[fullpath.length() - 1] == '/') {
+                       fullpath = fullpath.substr (0, fullpath.length() - 1);
                }
 
                /* check whether session still exists */
                if (!Glib::file_test(fullpath.c_str(), Glib::FILE_TEST_EXISTS)) {
                        /* session doesn't exist */
-                       cerr << "skipping non-existent session " << fullpath << endl;
                        continue;
                }
 
@@ -1251,6 +1188,7 @@ ARDOUR_UI::redisplay_recent_sessions ()
 
                row[recent_session_columns.visible_name] = Glib::path_get_basename (fullpath);
                row[recent_session_columns.fullpath] = fullpath;
+               row[recent_session_columns.tip] = Glib::Markup::escape_text (fullpath);
 
                if (state_file_names.size() > 1) {
 
@@ -1264,10 +1202,12 @@ ARDOUR_UI::redisplay_recent_sessions ()
 
                                child_row[recent_session_columns.visible_name] = *i2;
                                child_row[recent_session_columns.fullpath] = fullpath;
+                               child_row[recent_session_columns.tip] = Glib::Markup::escape_text (fullpath);
                        }
                }
        }
 
+       recent_session_display.set_tooltip_column(1); // recent_session_columns.tip
        recent_session_display.set_model (recent_session_model);
 }
 
@@ -1297,7 +1237,6 @@ ARDOUR_UI::build_session_selector ()
 
        recent_session_display.show();
        scroller->show();
-       //session_selector_window->get_vbox()->show();
 }
 
 void
@@ -1369,7 +1308,7 @@ ARDOUR_UI::check_audioengine ()
                                                   _("%1 is not connected to JACK\n"
                                                     "You cannot open or close sessions in this condition"),
                                                   PROGRAM_NAME));
-                       pop_back_splash ();
+                       pop_back_splash (msg);
                        msg.run ();
                        return false;
                }
@@ -1397,6 +1336,17 @@ ARDOUR_UI::open_session ()
                open_session_selector->add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
                open_session_selector->add_button (Gtk::Stock::OPEN, Gtk::RESPONSE_ACCEPT);
                open_session_selector->set_default_response(Gtk::RESPONSE_ACCEPT);
+               
+               if (_session) {
+                       string session_parent_dir = Glib::path_get_dirname(_session->path());
+                       string::size_type last_dir_sep = session_parent_dir.rfind(G_DIR_SEPARATOR);
+                       session_parent_dir = session_parent_dir.substr(0, last_dir_sep);
+                       open_session_selector->set_current_folder(session_parent_dir);
+               } else {
+                       open_session_selector->set_current_folder(Config->get_default_session_parent_dir());
+               }
+
+               open_session_selector->add_shortcut_folder (Config->get_default_session_parent_dir());
 
                FileFilter session_filter;
                session_filter.add_pattern ("*.ardour");
@@ -1431,7 +1381,8 @@ ARDOUR_UI::open_session ()
 
 
 void
-ARDOUR_UI::session_add_midi_route (bool disk, RouteGroup* route_group, uint32_t how_many, string const & name_template)
+ARDOUR_UI::session_add_mixed_track (const ChanCount& input, const ChanCount& output, RouteGroup* route_group, 
+                                   uint32_t how_many, const string& name_template, PluginInfoPtr instrument)
 {
        list<boost::shared_ptr<MidiTrack> > tracks;
 
@@ -1441,22 +1392,11 @@ ARDOUR_UI::session_add_midi_route (bool disk, RouteGroup* route_group, uint32_t
        }
 
        try {
-               if (disk) {
-
-                       tracks = _session->new_midi_track (ARDOUR::Normal, route_group, how_many, name_template);
-
-                       if (tracks.size() != how_many) {
-                               if (how_many == 1) {
-                                       error << _("could not create a new midi track") << endmsg;
-                               } else {
-                                       error << string_compose (_("could not create %1 new midi tracks"), how_many) << endmsg;
-                               }
-                       }
-               } /*else {
-                       if ((route = _session->new_midi_route ()) == 0) {
-                               error << _("could not create new midi bus") << endmsg;
-                       }
-               }*/
+               tracks = _session->new_midi_track (input, output, instrument, ARDOUR::Normal, route_group, how_many, name_template);
+               
+               if (tracks.size() != how_many) {
+                       error << string_compose(P_("could not create %1 new mixed track", "could not create %1 new mixed tracks", how_many), how_many) << endmsg;
+               }
        }
 
        catch (...) {
@@ -1468,7 +1408,18 @@ restart JACK with more ports."), PROGRAM_NAME));
                msg.run ();
        }
 }
+       
+
+void
+ARDOUR_UI::session_add_midi_route (bool disk, RouteGroup* route_group, uint32_t how_many, const string& name_template, PluginInfoPtr instrument)
+{
+       ChanCount one_midi_channel;
+       one_midi_channel.set (DataType::MIDI, 1);
 
+       if (disk) {
+               session_add_mixed_track (one_midi_channel, one_midi_channel, route_group, how_many, name_template, instrument);
+       }
+}
 
 void
 ARDOUR_UI::session_add_audio_route (
@@ -1494,12 +1445,8 @@ ARDOUR_UI::session_add_audio_route (
                        tracks = _session->new_audio_track (input_channels, output_channels, mode, route_group, how_many, name_template);
 
                        if (tracks.size() != how_many) {
-                               if (how_many == 1) {
-                                       error << _("could not create a new audio track") << endmsg;
-                               } else {
-                                       error << string_compose (_("could only create %1 of %2 new audio %3"),
-                                                                tracks.size(), how_many, (track ? _("tracks") : _("busses"))) << endmsg;
-                               }
+                               error << string_compose (P_("could not create %1 new audio track", "could not create %1 new audio tracks", how_many), how_many) 
+                                     << endmsg;
                        }
 
                } else {
@@ -1507,11 +1454,8 @@ ARDOUR_UI::session_add_audio_route (
                        routes = _session->new_audio_route (input_channels, output_channels, route_group, how_many, name_template);
 
                        if (routes.size() != how_many) {
-                               if (how_many == 1) {
-                                       error << _("could not create a new audio bus") << endmsg;
-                               } else {
-                                       error << string_compose (_("could not create %1 new audio busses"), how_many) << endmsg;
-                               }
+                               error << string_compose (P_("could not create %1 new audio bus", "could not create %1 new audio busses", how_many), how_many)
+                                     << endmsg;
                        }
                }
        }
@@ -1522,30 +1466,11 @@ ARDOUR_UI::session_add_audio_route (
 to create a new track or bus.\n\
 You should save %1, exit and\n\
 restart JACK with more ports."), PROGRAM_NAME));
-               pop_back_splash ();
+               pop_back_splash (msg);
                msg.run ();
        }
 }
 
-void
-ARDOUR_UI::do_transport_locate (framepos_t new_position, bool with_roll)
-{
-       framecnt_t _preroll = 0;
-
-       if (_session) {
-               // XXX CONFIG_CHANGE FIX - requires AnyTime handling
-               // _preroll = _session->convert_to_frames_at (new_position, Config->get_preroll());
-
-               if (new_position > _preroll) {
-                       new_position -= _preroll;
-               } else {
-                       new_position = 0;
-               }
-
-               _session->request_locate (new_position, with_roll);
-       }
-}
-
 void
 ARDOUR_UI::transport_goto_start ()
 {
@@ -1638,22 +1563,6 @@ ARDOUR_UI::transport_stop ()
        _session->request_stop (false, true);
 }
 
-void
-ARDOUR_UI::transport_stop_and_forget_capture ()
-{
-       if (_session) {
-               _session->request_stop (true, true);
-       }
-}
-
-void
-ARDOUR_UI::remove_last_capture()
-{
-       if (editor) {
-               editor->remove_last_capture();
-       }
-}
-
 void
 ARDOUR_UI::transport_record (bool roll)
 {
@@ -1662,7 +1571,7 @@ ARDOUR_UI::transport_record (bool roll)
                switch (_session->record_status()) {
                case Session::Disabled:
                        if (_session->ntracks() == 0) {
-                               MessageDialog msg (*editor, _("Please create 1 or more track\nbefore trying to record.\nCheck the Session menu."));
+                               MessageDialog msg (*editor, _("Please create one or more tracks before trying to record.\nYou can do this with the \"Add Track or Bus\" option in the Session menu."));
                                msg.run ();
                                return;
                        }
@@ -1683,7 +1592,6 @@ ARDOUR_UI::transport_record (bool roll)
                        _session->disable_record (false, true);
                }
        }
-       //cerr << "ARDOUR_UI::transport_record () called roll = " << roll << " _session->record_status() = " << _session->record_status() << endl;
 }
 
 void
@@ -1699,7 +1607,7 @@ ARDOUR_UI::transport_roll ()
 
 #if 0
        if (_session->config.get_external_sync()) {
-               switch (_session->config.get_sync_source()) {
+               switch (Config->get_sync_source()) {
                case JACK:
                        break;
                default:
@@ -1718,20 +1626,23 @@ ARDOUR_UI::transport_roll ()
                if (!Config->get_seamless_loop()) {
                        _session->request_play_loop (false, true);
                }
-       } else if (_session->get_play_range () && !join_play_range_button.active_state()) {
+       } else if (_session->get_play_range () && !Config->get_always_play_range()) {
                /* stop playing a range if we currently are */
                _session->request_play_range (0, true);
        }
 
-       if (join_play_range_button.active_state()) {
-               _session->request_play_range (&editor->get_selection().time, true);
-       }
-
        if (!rolling) {
                _session->request_transport_speed (1.0f);
        }
 }
 
+bool
+ARDOUR_UI::get_smart_mode() const
+{
+       return ( editor->get_smart_mode() );
+}
+
+
 void
 ARDOUR_UI::toggle_roll (bool with_abort, bool roll_out_of_bounded_mode)
 {
@@ -1746,7 +1657,7 @@ ARDOUR_UI::toggle_roll (bool with_abort, bool roll_out_of_bounded_mode)
        }
 
        if (_session->config.get_external_sync()) {
-               switch (_session->config.get_sync_source()) {
+               switch (Config->get_sync_source()) {
                case JACK:
                        break;
                default:
@@ -1782,7 +1693,7 @@ ARDOUR_UI::toggle_roll (bool with_abort, bool roll_out_of_bounded_mode)
                if (rolling) {
                        _session->request_stop (with_abort, true);
                } else {
-                       if (join_play_range_button.active_state()) {
+                       if ( Config->get_always_play_range() ) {
                                _session->request_play_range (&editor->get_selection().time, true);
                        }
 
@@ -1794,7 +1705,9 @@ ARDOUR_UI::toggle_roll (bool with_abort, bool roll_out_of_bounded_mode)
 void
 ARDOUR_UI::toggle_session_auto_loop ()
 {
-       if (!_session) {
+       Location * looploc = _session->locations()->auto_loop_location();
+
+       if (!_session || !looploc) {
                return;
        }
 
@@ -1802,24 +1715,18 @@ ARDOUR_UI::toggle_session_auto_loop ()
 
                if (_session->transport_rolling()) {
 
-                       Location * looploc = _session->locations()->auto_loop_location();
-
-                       if (looploc) {
-                               _session->request_locate (looploc->start(), true);
-                               _session->request_play_loop (false);
-                       }
+                       _session->request_locate (looploc->start(), true);
+                       _session->request_play_loop (false);
 
                } else {
                        _session->request_play_loop (false);
                }
        } else {
-
-         Location * looploc = _session->locations()->auto_loop_location();
-
-               if (looploc) {
-                       _session->request_play_loop (true);
-               }
+               _session->request_play_loop (true);
        }
+       
+       //show the loop markers
+       looploc->set_hidden (false, this);
 }
 
 void
@@ -1832,6 +1739,15 @@ ARDOUR_UI::transport_play_selection ()
        editor->play_selection ();
 }
 
+void
+ARDOUR_UI::transport_play_preroll ()
+{
+       if (!_session) {
+               return;
+       }
+       editor->play_with_preroll ();
+}
+
 void
 ARDOUR_UI::transport_rewind (int option)
 {
@@ -1862,35 +1778,34 @@ ARDOUR_UI::transport_rewind (int option)
 void
 ARDOUR_UI::transport_forward (int option)
 {
-       float current_transport_speed;
-
-       if (_session) {
-               current_transport_speed = _session->transport_speed();
-
-               if (current_transport_speed <= 0.0f) {
-                       switch (option) {
-                       case 0:
-                               _session->request_transport_speed (1.0f);
-                               break;
-                       case 1:
-                               _session->request_transport_speed (4.0f);
-                               break;
-                       case -1:
-                               _session->request_transport_speed (0.5f);
-                               break;
-                       }
-               } else {
-                       /* speed up */
-                       _session->request_transport_speed (current_transport_speed * 1.5f);
+       if (!_session) {
+               return;
+       }
+       
+       float current_transport_speed = _session->transport_speed();
+       
+       if (current_transport_speed <= 0.0f) {
+               switch (option) {
+               case 0:
+                       _session->request_transport_speed (1.0f);
+                       break;
+               case 1:
+                       _session->request_transport_speed (4.0f);
+                       break;
+               case -1:
+                       _session->request_transport_speed (0.5f);
+                       break;
                }
-
+       } else {
+               /* speed up */
+               _session->request_transport_speed (current_transport_speed * 1.5f);
        }
 }
 
 void
 ARDOUR_UI::toggle_record_enable (uint32_t rid)
 {
-       if (_session == 0) {
+       if (!_session) {
                return;
        }
 
@@ -1904,9 +1819,6 @@ ARDOUR_UI::toggle_record_enable (uint32_t rid)
                        t->set_record_enabled (!t->record_enabled(), this);
                }
        }
-       if (_session == 0) {
-               return;
-       }
 }
 
 void
@@ -1916,7 +1828,7 @@ ARDOUR_UI::map_transport_state ()
                auto_loop_button.unset_active_state ();
                play_selection_button.unset_active_state ();
                roll_button.unset_active_state ();
-               stop_button.set_active_state (Gtkmm2ext::Active);
+               stop_button.set_active_state (Gtkmm2ext::ExplicitActive);
                return;
        }
 
@@ -1930,37 +1842,37 @@ ARDOUR_UI::map_transport_state ()
 
                if (_session->get_play_range()) {
 
-                       play_selection_button.set_active_state (Gtkmm2ext::Active);
+                       play_selection_button.set_active_state (Gtkmm2ext::ExplicitActive);
                        roll_button.unset_active_state ();
                        auto_loop_button.unset_active_state ();
 
                } else if (_session->get_play_loop ()) {
 
-                       auto_loop_button.set_active_state (Gtkmm2ext::Active);
-                       play_selection_button.unset_active_state ();
-                       roll_button.unset_active_state ();
+                       auto_loop_button.set_active (true);
+                       play_selection_button.set_active (false);
+                       roll_button.set_active (false);
 
                } else {
 
-                       roll_button.set_active_state (Gtkmm2ext::Active);
-                       play_selection_button.unset_active_state ();
-                       auto_loop_button.unset_active_state ();
+                       roll_button.set_active (true);
+                       play_selection_button.set_active (false);
+                       auto_loop_button.set_active (false);
                }
 
-               if (join_play_range_button.active_state()) {
+               if (Config->get_always_play_range()) {
                        /* light up both roll and play-selection if they are joined */
-                       roll_button.set_active_state (Gtkmm2ext::Active);
-                       play_selection_button.set_active_state (Gtkmm2ext::Active);
+                       roll_button.set_active (true);
+                       play_selection_button.set_active (true);
                }
 
-               stop_button.unset_active_state ();
+               stop_button.set_active (false);
 
        } else {
 
-               stop_button.set_active_state (Gtkmm2ext::Active);
-               roll_button.unset_active_state ();
-               play_selection_button.unset_active_state ();
-               auto_loop_button.unset_active_state ();
+               stop_button.set_active (true);
+               roll_button.set_active (false);
+               play_selection_button.set_active (false);
+               auto_loop_button.set_active (false);
                update_disk_space ();
        }
 }
@@ -2059,11 +1971,12 @@ JACK, reconnect and save the session."), PROGRAM_NAME);
        }
 
        MessageDialog msg (*editor, msgstr);
-       pop_back_splash ();
+       pop_back_splash (msg);
+       msg.set_keep_above (true);
        msg.run ();
-
+       
        if (free_reason) {
-               free ((char*) reason);
+               free (const_cast<char*> (reason));
        }
 }
 
@@ -2085,12 +1998,6 @@ ARDOUR_UI::do_engine_start ()
        return 0;
 }
 
-void
-ARDOUR_UI::setup_theme ()
-{
-       theme_manager->setup_theme();
-}
-
 void
 ARDOUR_UI::update_clocks ()
 {
@@ -2111,21 +2018,8 @@ ARDOUR_UI::stop_clocking ()
        clock_signal_connection.disconnect ();
 }
 
-void
-ARDOUR_UI::toggle_clocking ()
-{
-#if 0
-       if (clock_button.get_active()) {
-               start_clocking ();
-       } else {
-               stop_clocking ();
-       }
-#endif
-}
-
 gint
 ARDOUR_UI::_blink (void *arg)
-
 {
        ((ARDOUR_UI *) arg)->blink ();
        return TRUE;
@@ -2160,7 +2054,7 @@ ARDOUR_UI::stop_blinking ()
 }
 
 
-/** Ask the user for the name of a new shapshot and then take it.
+/** Ask the user for the name of a new snapshot and then take it.
  */
 
 void
@@ -2194,27 +2088,16 @@ ARDOUR_UI::snapshot_session (bool switch_to_it)
                bool do_save = (snapname.length() != 0);
 
                if (do_save) {
-                       if (snapname.find ('/') != string::npos) {
-                               MessageDialog msg (_("To ensure compatibility with various systems\n"
-                                                    "snapshot names may not contain a '/' character"));
-                               msg.run ();
-                               goto again;
-                       }
-                       if (snapname.find ('\\') != string::npos) {
-                               MessageDialog msg (_("To ensure compatibility with various systems\n"
-                                                    "snapshot names may not contain a '\\' character"));
-                               msg.run ();
-                               goto again;
-                       }
-                       if (snapname.find (':') != string::npos) {
-                               MessageDialog msg (_("To ensure compatibility with various systems\n"
-                                                    "snapshot names may not contain a ':' character"));
+                       char illegal = Session::session_name_is_legal(snapname);
+                       if (illegal) {
+                               MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
+                                                    "snapshot names may not contain a '%1' character"), illegal));
                                msg.run ();
                                goto again;
                        }
                }
 
-               vector<sys::path> p;
+               vector<std::string> p;
                get_state_files_in_directory (_session->session_directory().root_path(), p);
                vector<string> n = get_file_names_no_extension (p);
                if (find (n.begin(), n.end(), snapname) != n.end()) {
@@ -2242,7 +2125,7 @@ ARDOUR_UI::snapshot_session (bool switch_to_it)
        }
 }
 
-/** Ask the user for the name of a new shapshot and then take it.
+/** Ask the user for a new session name and then rename the session to it.
  */
 
 void
@@ -2269,15 +2152,11 @@ ARDOUR_UI::rename_session ()
                bool do_rename = (name.length() != 0);
 
                if (do_rename) {
-                       if (name.find ('/') != string::npos) {
-                               MessageDialog msg (_("To ensure compatibility with various systems\n"
-                                                    "session names may not contain a '/' character"));
-                               msg.run ();
-                               goto again;
-                       }
-                       if (name.find ('\\') != string::npos) {
-                               MessageDialog msg (_("To ensure compatibility with various systems\n"
-                                                    "session names may not contain a '\\' character"));
+                       char illegal = Session::session_name_is_legal (name);
+
+                       if (illegal) {
+                               MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
+                                                                    "session names may not contain a '%1' character"), illegal));
                                msg.run ();
                                goto again;
                        }
@@ -2386,12 +2265,12 @@ ARDOUR_UI::transport_rec_enable_blink (bool onoff)
 
        if (r == Session::Enabled || (r == Session::Recording && !h)) {
                if (onoff) {
-                       rec_button.set_active_state (Active);
+                       rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
                } else {
-                       rec_button.set_active_state (Mid);
+                       rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
                }
        } else if (r == Session::Recording && h) {
-               rec_button.set_active_state (Mid);
+               rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
        } else {
                rec_button.unset_active_state ();
        }
@@ -2461,7 +2340,7 @@ ARDOUR_UI::ask_about_loading_existing_session (const std::string& session_path)
        msg.set_title (_("Open Existing Session"));
        msg.set_wmclass (X_("existing_session"), PROGRAM_NAME);
        msg.set_position (Gtk::WIN_POS_MOUSE);
-       pop_back_splash ();
+       pop_back_splash (msg);
 
        switch (msg.run()) {
        case RESPONSE_YES:
@@ -2500,8 +2379,6 @@ ARDOUR_UI::build_session_from_nsd (const std::string& session_path, const std::s
                        bus_profile.input_ac = AutoConnectOption (0);
                }
 
-               /// @todo some minor tweaks.
-
                bus_profile.output_ac = AutoConnectOption (0);
 
                if (_startup->connect_outputs ()) {
@@ -2534,44 +2411,12 @@ ARDOUR_UI::idle_load (const std::string& path)
                        /* /path/to/foo/foo.ardour => /path/to/foo, foo */
                        load_session (Glib::path_get_dirname (path), basename_nosuffix (path));
                }
-       } else {
 
+       } else {
                ARDOUR_COMMAND_LINE::session_name = path;
-
-               /*
-                * new_session_dialog doens't exist in A3
-                * Try to remove all references to it to
-                * see if it will compile.  NOTE: this will
-                * likely cause a runtime issue is my somewhat
-                * uneducated guess.
-                */
-
-               //if (new_session_dialog) {
-
-
-                       /* make it break out of Dialog::run() and
-                          start again.
-                        */
-
-                       //new_session_dialog->response (1);
-               //}
        }
 }
 
-void
-ARDOUR_UI::end_loading_messages ()
-{
-       // hide_splash ();
-}
-
-void
-ARDOUR_UI::loading_message (const std::string& /*msg*/)
-{
-       // show_splash ();
-       // splash->message (msg);
-       flush_pending ();
-}
-
 /** @param quit_on_cancel true if exit() should be called if the user clicks `cancel' in the new session dialog */
 int
 ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, string load_template)
@@ -2582,6 +2427,19 @@ ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, stri
        int ret = -1;
        bool likely_new = false;
 
+       /* deal with any existing DIRTY session now, rather than later. don't
+        * treat a non-dirty session this way, so that it stays visible 
+        * as we bring up the new session dialog.
+        */
+
+       if (_session && _session->dirty()) {
+               if (unload_session (false)) {
+                       /* unload cancelled by user */
+                       return 0;
+               }
+               ARDOUR_COMMAND_LINE::session_name = "";
+       }
+
        if (!load_template.empty()) {
                should_be_new = true;
                template_name = load_template;
@@ -2589,7 +2447,7 @@ ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, stri
 
        while (ret != 0) {
 
-               if (!should_be_new && !ARDOUR_COMMAND_LINE::session_name.empty()) {
+               if (!ARDOUR_COMMAND_LINE::session_name.empty()) {
 
                        /* if they named a specific statefile, use it, otherwise they are
                           just giving a session folder, and we want to use it as is
@@ -2606,77 +2464,82 @@ ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, stri
                                session_path = ARDOUR_COMMAND_LINE::session_name;
                                session_name = Glib::path_get_basename (ARDOUR_COMMAND_LINE::session_name);
                        }
-
                } else {
+                       session_path = "";
+                       session_name = "";
+               }
 
-                       bool const apply = run_startup (should_be_new, load_template);
-
-                       if (!apply) {
-                               if (quit_on_cancel) {
-                                       exit (1);
-                               } else {
-                                       return ret;
-                               }
-                       }
-
-                       /* if we run the startup dialog again, offer more than just "new session" */
-
-                       should_be_new = false;
-
-                       session_name = _startup->session_name (likely_new);
-
-                       string::size_type suffix = session_name.find (statefile_suffix);
-
-                       if (suffix != string::npos) {
-                               session_name = session_name.substr (0, suffix);
+               delete _startup;
+               _startup = new ArdourStartup (should_be_new, session_name, session_path, load_template);
+               
+               if (!_startup->ready_without_display()) {
+                       _startup->present ();
+                       main().run();
+                       _startup->hide ();
+               }
+               
+               switch (_startup->response()) {
+               case RESPONSE_OK:
+                       break;
+               default:
+                       if (quit_on_cancel) {
+                               exit (1);
+                       } else {
+                               return ret;
                        }
+               }
 
-                       /* this shouldn't happen, but we catch it just in case it does */
+               /* if we run the startup dialog again, offer more than just "new session" */
+               
+               should_be_new = false;
+               
+               session_name = _startup->session_name (likely_new);
+               
+               string::size_type suffix = session_name.find (statefile_suffix);
+               
+               if (suffix != string::npos) {
+                       session_name = session_name.substr (0, suffix);
+               }
+               
+               /* this shouldn't happen, but we catch it just in case it does */
+               
+               if (session_name.empty()) {
+                       continue;
+               }
+               
+               if (_startup->use_session_template()) {
+                       template_name = _startup->session_template_name();
+                       _session_is_new = true;
+               }
+               
+               if (session_name[0] == G_DIR_SEPARATOR ||
+                   (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == G_DIR_SEPARATOR) ||
+                   (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == G_DIR_SEPARATOR)) {
+                       
+                       /* absolute path or cwd-relative path specified for session name: infer session folder
+                          from what was given.
+                       */
+                       
+                       session_path = Glib::path_get_dirname (session_name);
+                       session_name = Glib::path_get_basename (session_name);
+                       
+               } else {
 
-                       if (session_name.empty()) {
+                       session_path = _startup->session_folder();
+                       
+                       char illegal = Session::session_name_is_legal (session_name);
+                       
+                       if (illegal) {
+                               MessageDialog msg (*_startup,
+                                                  string_compose (_("To ensure compatibility with various systems\n"
+                                                                    "session names may not contain a '%1' character"),
+                                                                  illegal));
+                               msg.run ();
+                               ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
                                continue;
                        }
-
-                       if (_startup->use_session_template()) {
-                               template_name = _startup->session_template_name();
-                               _session_is_new = true;
-                       }
-
-                       if (session_name[0] == G_DIR_SEPARATOR ||
-                           (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == G_DIR_SEPARATOR) ||
-                           (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == G_DIR_SEPARATOR)) {
-
-                               /* absolute path or cwd-relative path specified for session name: infer session folder
-                                  from what was given.
-                               */
-
-                               session_path = Glib::path_get_dirname (session_name);
-                               session_name = Glib::path_get_basename (session_name);
-
-                       } else {
-
-                               session_path = _startup->session_folder();
-
-                               if (session_name.find ('/') != string::npos) {
-                                       MessageDialog msg (*_startup,
-                                                          _("To ensure compatibility with various systems\n"
-                                                            "session names may not contain a '/' character"));
-                                       msg.run ();
-                                       ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
-                                       continue;
-                               }
-
-                               if (session_name.find ('\\') != string::npos) {
-                                       MessageDialog msg (*_startup,
-                                                          _("To ensure compatibility with various systems\n"
-                                                            "session names may not contain a '\\' character"));
-                                       msg.run ();
-                                       ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
-                                       continue;
-                               }
-                       }
                }
-
+       
                if (create_engine ()) {
                        break;
                }
@@ -2698,25 +2561,23 @@ ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, stri
                } else {
 
                        if (!likely_new) {
-                               MessageDialog msg (string_compose (_("There is no existing session at \"%1\""), session_path));
-                               msg.run ();
-                               ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
-                               continue;
-                       }
+                               if (_startup) {
+                                       pop_back_splash (*_startup);
+                               } else {
+                                       hide_splash ();
+                               }
 
-                       if (session_name.find ('/') != std::string::npos) {
-                               MessageDialog msg (*_startup,
-                                                  _("To ensure compatibility with various systems\n"
-                                                    "session names may not contain a '/' character"));
+                               MessageDialog msg (string_compose (_("There is no existing session at \"%1\""), session_path));
                                msg.run ();
                                ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
                                continue;
                        }
 
-                       if (session_name.find ('\\') != std::string::npos) {
-                               MessageDialog msg (*_startup,
-                                                  _("To ensure compatibility with various systems\n"
-                                                    "session names may not contain a '\\' character"));
+                       char illegal = Session::session_name_is_legal(session_name);
+                       if (illegal) {
+                               pop_back_splash (*_startup);
+                               MessageDialog msg (*_startup, string_compose(_("To ensure compatibility with various systems\n"
+                                                    "session names may not contain a '%1' character"), illegal));
                                msg.run ();
                                ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
                                continue;
@@ -2811,7 +2672,7 @@ ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name,
                msg.set_title (_("Port Registration Error"));
                msg.set_secondary_text (_("Click the Close button to try again."));
                msg.set_position (Gtk::WIN_POS_CENTER);
-               pop_back_splash ();
+               pop_back_splash (msg);
                msg.present ();
 
                int response = msg.run ();
@@ -2840,7 +2701,7 @@ ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name,
                msg.set_secondary_text (_("Click the Refresh button to try again."));
                msg.add_button (Stock::REFRESH, 1);
                msg.set_position (Gtk::WIN_POS_CENTER);
-               pop_back_splash ();
+               pop_back_splash (msg);
                msg.present ();
 
                int response = msg.run ();
@@ -2920,7 +2781,7 @@ ARDOUR_UI::build_session (const std::string& path, const std::string& snap_name,
        catch (...) {
 
                MessageDialog msg (string_compose(_("Could not create session in \"%1\""), path));
-               pop_back_splash ();
+               pop_back_splash (msg);
                msg.run ();
                return -1;
        }
@@ -2968,7 +2829,7 @@ ARDOUR_UI::show_about ()
 {
        if (about == 0) {
                about = new About;
-               about->signal_response().connect(sigc::mem_fun (*this, &ARDOUR_UI::about_signal_response) );
+               about->signal_response().connect (sigc::mem_fun (*this, &ARDOUR_UI::about_signal_response));
        }
 
        about->set_transient_for(*editor);
@@ -2984,7 +2845,7 @@ ARDOUR_UI::launch_manual ()
 void
 ARDOUR_UI::launch_reference ()
 {
-       PBD::open_uri("http://ardour.org/refmanual");
+       PBD::open_uri ("http://ardour.org/refmanual");
 }
 
 void
@@ -3002,6 +2863,20 @@ ARDOUR_UI::about_signal_response (int /*response*/)
        hide_about();
 }
 
+void
+ARDOUR_UI::loading_message (const std::string& msg)
+{
+       if (ARDOUR_COMMAND_LINE::no_splash) {
+               return;
+       }
+
+       if (!splash) {
+               show_splash ();
+       }
+
+       splash->message (msg);
+}
+
 void
 ARDOUR_UI::show_splash ()
 {
@@ -3013,24 +2888,18 @@ ARDOUR_UI::show_splash ()
                }
        }
 
-       splash->show ();
-       splash->present ();
-       splash->queue_draw ();
-       splash->get_window()->process_updates (true);
-       flush_pending ();
+       splash->display ();
 }
 
 void
 ARDOUR_UI::hide_splash ()
 {
-       if (splash) {
-               splash->hide();
-       }
+        delete splash;
+        splash = 0;
 }
 
 void
-ARDOUR_UI::display_cleanup_results (ARDOUR::CleanupReport& rep, const gchar* list_title,
-                                   const string& plural_msg, const string& singular_msg)
+ARDOUR_UI::display_cleanup_results (ARDOUR::CleanupReport& rep, const gchar* list_title, const bool msg_delete)
 {
        size_t removed;
 
@@ -3041,7 +2910,7 @@ ARDOUR_UI::display_cleanup_results (ARDOUR::CleanupReport& rep, const gchar* lis
                                    _("No files were ready for clean-up"),
                                    true,
                                    Gtk::MESSAGE_INFO,
-                                   (Gtk::ButtonsType)(Gtk::BUTTONS_OK)  );
+                                   Gtk::BUTTONS_OK);
                msgd.set_title (_("Clean-up"));
                msgd.set_secondary_text (_("If this seems suprising, \n\
 check for any existing snapshots.\n\
@@ -3086,7 +2955,7 @@ require some unused files to continue to exist."));
 
        dimage->set_alignment(ALIGN_LEFT, ALIGN_TOP);
 
-       const string dead_directory = _session->session_directory().dead_path().to_string();
+       const string dead_directory = _session->session_directory().dead_path();
 
        /* subst:
           %1 - number of files removed
@@ -3102,20 +2971,36 @@ require some unused files to continue to exist."));
                bprefix = X_("");
                space_adjusted = rep.space;
        } else if (rep.space < 1000000) {
-               bprefix = X_("kilo");
+               bprefix = _("kilo");
                space_adjusted = truncf((float)rep.space / 1000.0);
        } else if (rep.space < 1000000 * 1000) {
-               bprefix = X_("mega");
+               bprefix = _("mega");
                space_adjusted = truncf((float)rep.space / (1000.0 * 1000.0));
        } else {
-               bprefix = X_("giga");
+               bprefix = _("giga");
                space_adjusted = truncf((float)rep.space / (1000.0 * 1000 * 1000.0));
        }
 
-       if (removed > 1) {
-               txt.set_text (string_compose (plural_msg, removed, dead_directory, space_adjusted, bprefix));
+       if (msg_delete) {
+               txt.set_markup (string_compose (P_("\
+The following file was deleted from %2,\n\
+releasing %3 %4bytes of disk space", "\
+The following %1 files were deleted from %2,\n\
+releasing %3 %4bytes of disk space", removed),
+                                       removed, Glib::Markup::escape_text (dead_directory), space_adjusted, bprefix, PROGRAM_NAME));
        } else {
-               txt.set_text (string_compose (singular_msg, removed, dead_directory, space_adjusted, bprefix));
+               txt.set_markup (string_compose (P_("\
+The following file was not in use and \n\
+has been moved to: %2\n\n\
+After a restart of %5\n\n\
+<span face=\"mono\">Session -> Clean-up -> Flush Wastebasket</span>\n\n\
+will release an additional %3 %4bytes of disk space.\n", "\
+The following %1 files were not in use and \n\
+have been moved to: %2\n\n\
+After a restart of %5\n\n\
+<span face=\"mono\">Session -> Clean-up -> Flush Wastebasket</span>\n\n\
+will release an additional %3 %4bytes of disk space.\n", removed),
+                                       removed, Glib::Markup::escape_text (dead_directory), space_adjusted, bprefix, PROGRAM_NAME));
        }
 
        dhbox.pack_start (*dimage, true, false, 5);
@@ -3167,7 +3052,7 @@ ARDOUR_UI::cleanup ()
        MessageDialog checker (_("Are you sure you want to clean-up?"),
                                true,
                                Gtk::MESSAGE_QUESTION,
-                               (Gtk::ButtonsType)(Gtk::BUTTONS_NONE));
+                               Gtk::BUTTONS_NONE);
 
        checker.set_title (_("Clean-up"));
 
@@ -3209,26 +3094,7 @@ Clean-up will move all unused files to a \"dead\" location."));
        editor->finish_cleanup ();
 
        checker.hide();
-       display_cleanup_results (rep,
-                                _("Cleaned Files"),
-                                _("\
-The following %1 files were not in use and \n\
-have been moved to:\n\n\
-%2\n\n\
-After a restart of Ardour,\n\n\
-Session -> Clean-up -> Flush Wastebasket\n\n\
-will release an additional\n\
-%3 %4bytes of disk space.\n"),
-                                _("\
-The following file was not in use and \n\
-has been moved to:\n                           \
-%2\n\n\
-After a restart of Ardour,\n\n\
-Session -> Clean-up -> Flush Wastebasket\n\n\
-will release an additional\n\
-%3 %4bytes of disk space.\n"
-                                        ));
-
+       display_cleanup_results (rep, _("Cleaned Files"), false);
 }
 
 void
@@ -3245,14 +3111,7 @@ ARDOUR_UI::flush_trash ()
                return;
        }
 
-       display_cleanup_results (rep,
-                                _("deleted file"),
-                                _("The following %1 files were deleted from\n\
-%2,\n\
-releasing %3 %4bytes of disk space"),
-                                _("The following file was deleted from\n\
-%2,\n\
-releasing %3 %4bytes of disk space"));
+       display_cleanup_results (rep, _("deleted file"), true);
 }
 
 void
@@ -3266,6 +3125,7 @@ ARDOUR_UI::add_route (Gtk::Window* float_window)
 
        if (add_route_dialog == 0) {
                add_route_dialog = new AddRouteDialog (_session);
+               add_route_dialog->set_position (WIN_POS_MOUSE);
                if (float_window) {
                        add_route_dialog->set_transient_for (*float_window);
                }
@@ -3292,6 +3152,12 @@ ARDOUR_UI::add_route (Gtk::Window* float_window)
                return;
        }
 
+       PBD::ScopedConnection idle_connection;
+
+       if (count > 8) {
+               ARDOUR::GUIIdle.connect (idle_connection, MISSING_INVALIDATOR, boost::bind (&Gtkmm2ext::UI::flush_pending, this), gui_context());
+       }
+
        string template_path = add_route_dialog->track_template();
 
        if (!template_path.empty()) {
@@ -3299,38 +3165,38 @@ ARDOUR_UI::add_route (Gtk::Window* float_window)
                return;
        }
 
-       uint32_t input_chan = add_route_dialog->channels ();
-       uint32_t output_chan;
+       ChanCount input_chan= add_route_dialog->channels ();
+       ChanCount output_chan;
        string name_template = add_route_dialog->name_template ();
-       bool track = add_route_dialog->track ();
+       PluginInfoPtr instrument = add_route_dialog->requested_instrument ();
        RouteGroup* route_group = add_route_dialog->route_group ();
-
        AutoConnectOption oac = Config->get_output_auto_connect();
 
        if (oac & AutoConnectMaster) {
-               output_chan = (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan);
+               output_chan.set (DataType::AUDIO, (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan.n_audio()));
+               output_chan.set (DataType::MIDI, 0);
        } else {
                output_chan = input_chan;
        }
 
        /* XXX do something with name template */
 
-       if (add_route_dialog->type() == ARDOUR::DataType::MIDI) {
-               if (track) {
-                       session_add_midi_track (route_group, count, name_template);
-               } else  {
-                       MessageDialog msg (*editor,
-                                       _("Sorry, MIDI Busses are not supported at this time."));
-                       msg.run ();
-                       //session_add_midi_bus();
-               }
-       } else {
-               if (track) {
-                       session_add_audio_track (input_chan, output_chan, add_route_dialog->mode(), route_group, count, name_template);
-               } else {
-                       session_add_audio_bus (input_chan, output_chan, route_group, count, name_template);
-               }
+       switch (add_route_dialog->type_wanted()) {
+       case AddRouteDialog::AudioTrack:
+               session_add_audio_track (input_chan.n_audio(), output_chan.n_audio(), add_route_dialog->mode(), route_group, count, name_template);
+               break;
+       case AddRouteDialog::MidiTrack:
+               session_add_midi_track (route_group, count, name_template, instrument);
+               break;
+       case AddRouteDialog::MixedTrack:
+               session_add_mixed_track (input_chan, output_chan, route_group, count, name_template, instrument);
+               break;
+       case AddRouteDialog::AudioBus:
+               session_add_audio_bus (input_chan.n_audio(), output_chan.n_audio(), route_group, count, name_template);
+               break;
        }
+
+       /* idle connection will end at scope end */
 }
 
 XMLNode*
@@ -3488,14 +3354,14 @@ ARDOUR_UI::pending_state_dialog ()
        HBox* hbox = new HBox();
        Image* image = new Image (Stock::DIALOG_QUESTION, ICON_SIZE_DIALOG);
        ArdourDialog dialog (_("Crash Recovery"), true);
-       Label  message (_("\
-This session appears to have been in\n\
-middle of recording when ardour or\n\
+       Label  message (string_compose (_("\
+This session appears to have been in the\n\
+middle of recording when %1 or\n\
 the computer was shutdown.\n\
 \n\
-Ardour can recover any captured audio for\n\
+%1 can recover any captured audio for\n\
 you, or it can ignore it. Please decide\n\
-what you would like to do.\n"));
+what you would like to do.\n"), PROGRAM_NAME));
        image->set_alignment(ALIGN_CENTER, ALIGN_TOP);
        hbox->pack_start (*image, PACK_EXPAND_WIDGET, 12);
        hbox->pack_end (message, PACK_EXPAND_PADDING, 12);
@@ -3520,12 +3386,12 @@ int
 ARDOUR_UI::sr_mismatch_dialog (framecnt_t desired, framecnt_t actual)
 {
        HBox* hbox = new HBox();
-       Image* image = new Image (Stock::DIALOG_QUESTION, ICON_SIZE_DIALOG);
+       Image* image = new Image (Stock::DIALOG_WARNING, ICON_SIZE_DIALOG);
        ArdourDialog dialog (_("Sample Rate Mismatch"), true);
        Label  message (string_compose (_("\
-This session was created with a sample rate of %1 Hz\n\
-\n\
-The audioengine is currently running at %2 Hz\n"), desired, actual));
+This session was created with a sample rate of %1 Hz, but\n\
+%2 is currently running at %3 Hz.  If you load this session,\n\
+audio may be played at the wrong sample rate.\n"), desired, PROGRAM_NAME, actual));
 
        image->set_alignment(ALIGN_CENTER, ALIGN_TOP);
        hbox->pack_start (*image, PACK_EXPAND_WIDGET, 12);
@@ -3552,7 +3418,7 @@ void
 ARDOUR_UI::disconnect_from_jack ()
 {
        if (engine) {
-               ifengine->disconnect_from_jack ()) {
+               if (engine->disconnect_from_jack ()) {
                        MessageDialog msg (*editor, _("Could not disconnect from JACK"));
                        msg.run ();
                }
@@ -3587,13 +3453,13 @@ void
 ARDOUR_UI::update_transport_clocks (framepos_t pos)
 {
        if (Config->get_primary_clock_delta_edit_cursor()) {
-               primary_clock->set (pos, false, editor->get_preferred_edit_position(), 1);
+               primary_clock->set (pos, false, editor->get_preferred_edit_position());
        } else {
-               primary_clock->set (pos, 0, true);
+               primary_clock->set (pos);
        }
 
        if (Config->get_secondary_clock_delta_edit_cursor()) {
-               secondary_clock->set (pos, false, editor->get_preferred_edit_position(), 2);
+               secondary_clock->set (pos, false, editor->get_preferred_edit_position());
        } else {
                secondary_clock->set (pos);
        }
@@ -3611,7 +3477,7 @@ ARDOUR_UI::step_edit_status_change (bool yn)
        // we make insensitive
 
        if (yn) {
-               rec_button.set_active_state (Mid);
+               rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
                rec_button.set_sensitive (false);
        } else {
                rec_button.unset_active_state ();;
@@ -3629,13 +3495,10 @@ ARDOUR_UI::record_state_changed ()
                return;
        }
 
-       Session::RecordState const r = _session->record_status ();
-       bool const h = _session->have_rec_enabled_track ();
-
-       if (r == Session::Recording && h)  {
-               big_clock->set_widget_name ("BigClockRecording");
+       if (_session->record_status () == Session::Recording && _session->have_rec_enabled_track ()) {
+               big_clock->set_active (true);
        } else {
-               big_clock->set_widget_name ("BigClockNonRecording");
+               big_clock->set_active (false);
        }
 }
 
@@ -3697,16 +3560,16 @@ ARDOUR_UI::TransportControllable::set_value (double val)
                action = X_("Stop");
                break;
        case GotoStart:
-               action = X_("Goto Start");
+               action = X_("GotoStart");
                break;
        case GotoEnd:
-               action = X_("Goto End");
+               action = X_("GotoEnd");
                break;
        case AutoLoop:
                action = X_("Loop");
                break;
        case PlaySelection:
-               action = X_("Play Selection");
+               action = X_("PlaySelection");
                break;
        case RecordEnable:
                action = X_("Record");
@@ -3756,11 +3619,10 @@ ARDOUR_UI::TransportControllable::get_value (void) const
 void
 ARDOUR_UI::setup_profile ()
 {
-       if (gdk_screen_width() < 1200) {
+       if (gdk_screen_width() < 1200 || getenv ("ARDOUR_NARROW_SCREEN")) {
                Profile->set_small_screen ();
        }
 
-
        if (getenv ("ARDOUR_SAE")) {
                Profile->set_sae ();
                Profile->set_single_package ();
@@ -3782,11 +3644,11 @@ ARDOUR_UI::toggle_translations ()
                        bool already_enabled = !ARDOUR::translations_are_disabled ();
 
                        if (ract->get_active ()) {
-/* we don't care about errors */
+                               /* we don't care about errors */
                                int fd = ::open (i18n_killer.c_str(), O_RDONLY|O_CREAT, 0644);
                                close (fd);
                        } else {
-/* we don't care about errors */
+                               /* we don't care about errors */
                                unlink (i18n_killer.c_str());
                        }
 
@@ -3872,3 +3734,23 @@ ARDOUR_UI::drop_process_buffers ()
 {
        _process_thread->drop_buffers ();
 }
+
+void
+ARDOUR_UI::feedback_detected ()
+{
+       _feedback_exists = true;
+}
+
+void
+ARDOUR_UI::successful_graph_sort ()
+{
+       _feedback_exists = false;
+}
+
+void
+ARDOUR_UI::midi_panic ()
+{
+       if (_session) {
+               _session->midi_panic();
+       }
+}