Tweaks to Mixer and Monitor keybindings:
[ardour.git] / gtk2_ardour / ardour_ui.cc
index d01a92ebf659c43a74f8eb22e2d9e9b964134004..9321f1313752e3206fbcef9728fe13b6da7df82f 100644 (file)
 #include <glib.h>
 #include "pbd/gstdio_compat.h"
 
-#include <gtkmm/messagedialog.h>
 #include <gtkmm/accelmap.h>
+#include <gtkmm/messagedialog.h>
 #include <gtkmm/stock.h>
+#include <gtkmm/uimanager.h>
 
 #include "pbd/error.h"
 #include "pbd/basename.h"
@@ -62,6 +63,7 @@
 #include "pbd/openuri.h"
 #include "pbd/stl_delete.h"
 #include "pbd/types_convert.h"
+#include "pbd/unwind.h"
 #include "pbd/file_utils.h"
 #include "pbd/localtime_r.h"
 #include "pbd/pthread_utils.h"
 #include "gtkmm2ext/bindings.h"
 #include "gtkmm2ext/gtk_ui.h"
 #include "gtkmm2ext/utils.h"
-#include "gtkmm2ext/click_box.h"
-#include "gtkmm2ext/fastmeter.h"
-#include "gtkmm2ext/popup.h"
 #include "gtkmm2ext/window_title.h"
 
+#include "widgets/fastmeter.h"
+#include "widgets/prompter.h"
+#include "widgets/tooltips.h"
+
 #include "ardour/ardour.h"
 #include "ardour/audio_backend.h"
 #include "ardour/audio_track.h"
 #include "ardour/audioengine.h"
 #include "ardour/audiofilesource.h"
 #include "ardour/automation_watch.h"
-#include "ardour/diskstream.h"
+#include "ardour/disk_reader.h"
+#include "ardour/disk_writer.h"
 #include "ardour/filename_extensions.h"
 #include "ardour/filesystem_paths.h"
 #include "ardour/ltc_file_reader.h"
+#include "ardour/monitor_control.h"
 #include "ardour/midi_track.h"
 #include "ardour/port.h"
 #include "ardour/plugin_manager.h"
 #include "ardour/session_state_utils.h"
 #include "ardour/session_utils.h"
 #include "ardour/source_factory.h"
-#include "ardour/slave.h"
+#include "ardour/transport_master.h"
+#include "ardour/transport_master_manager.h"
 #include "ardour/system_exec.h"
 #include "ardour/track.h"
 #include "ardour/vca_manager.h"
 #undef check
 #endif
 
-#include "timecode/time.h"
+#include "temporal/time.h"
 
 typedef uint64_t microseconds_t;
 
@@ -135,6 +141,7 @@ typedef uint64_t microseconds_t;
 #include "audio_clock.h"
 #include "audio_region_view.h"
 #include "big_clock_window.h"
+#include "big_transport_window.h"
 #include "bundle_manager.h"
 #include "duplicate_routes_dialog.h"
 #include "debug.h"
@@ -161,13 +168,14 @@ typedef uint64_t microseconds_t;
 #include "nsm.h"
 #include "opts.h"
 #include "pingback.h"
+#include "plugin_dspload_window.h"
 #include "processor_box.h"
-#include "prompter.h"
 #include "public_editor.h"
 #include "rc_option_editor.h"
 #include "route_time_axis.h"
 #include "route_params_ui.h"
 #include "save_as_dialog.h"
+#include "save_template_dialog.h"
 #include "script_selector.h"
 #include "session_archive_dialog.h"
 #include "session_dialog.h"
@@ -176,9 +184,11 @@ typedef uint64_t microseconds_t;
 #include "speaker_dialog.h"
 #include "splash.h"
 #include "startup.h"
+#include "template_dialog.h"
 #include "time_axis_view_item.h"
 #include "time_info_box.h"
 #include "timers.h"
+#include "transport_masters_dialog.h"
 #include "utils.h"
 #include "utils_videotl.h"
 #include "video_server_dialog.h"
@@ -191,14 +201,15 @@ using namespace ARDOUR;
 using namespace ARDOUR_UI_UTILS;
 using namespace PBD;
 using namespace Gtkmm2ext;
+using namespace ArdourWidgets;
 using namespace Gtk;
 using namespace std;
 using namespace Editing;
 
 ARDOUR_UI *ARDOUR_UI::theArdourUI = 0;
 
-sigc::signal<void, framepos_t, bool, framepos_t> ARDOUR_UI::Clock;
-sigc::signal<void>      ARDOUR_UI::CloseAllDialogs;
+sigc::signal<void, samplepos_t> ARDOUR_UI::Clock;
+sigc::signal<void> ARDOUR_UI::CloseAllDialogs;
 
 static bool
 ask_about_configuration_copy (string const & old_dir, string const & new_dir, int version)
@@ -211,7 +222,7 @@ ask_about_configuration_copy (string const & old_dir, string const & new_dir, in
                           Gtk::MESSAGE_INFO,
                           Gtk::BUTTONS_YES_NO,
                           true /* modal, though it hardly matters since it is the only window */
-               );
+       );
 
        msg.set_default_response (Gtk::RESPONSE_YES);
        msg.show_all ();
@@ -221,8 +232,8 @@ ask_about_configuration_copy (string const & old_dir, string const & new_dir, in
 
 static void
 libxml_generic_error_func (void* /* parsing_context*/,
-                   const char* msg,
-                   ...)
+                           const char* msg,
+                           ...)
 {
        va_list ap;
        char buf[2048];
@@ -262,7 +273,7 @@ libxml_structured_error_func (void* /* parsing_context*/,
 
 ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], const char* localedir)
        : Gtkmm2ext::UI (PROGRAM_NAME, X_("gui"), argcp, argvp)
-       , session_loaded (false)
+       , session_load_in_progress (false)
        , gui_object_state (new GUIObjectState)
        , primary_clock   (new MainClock (X_("primary"),   X_("transport"), true ))
        , secondary_clock (new MainClock (X_("secondary"), X_("secondary"), false))
@@ -279,13 +290,6 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], const char* localedir)
        , _initial_verbose_plugin_scan (false)
        , first_time_engine_run (true)
        , secondary_clock_spacer (0)
-       , roll_controllable (new TransportControllable ("transport roll", *this, TransportControllable::Roll))
-       , stop_controllable (new TransportControllable ("transport stop", *this, TransportControllable::Stop))
-       , goto_start_controllable (new TransportControllable ("transport goto start", *this, TransportControllable::GotoStart))
-       , goto_end_controllable (new TransportControllable ("transport goto end", *this, TransportControllable::GotoEnd))
-       , auto_loop_controllable (new TransportControllable ("transport auto loop", *this, TransportControllable::AutoLoop))
-       , play_selection_controllable (new TransportControllable ("transport play selection", *this, TransportControllable::PlaySelection))
-       , rec_controllable (new TransportControllable ("transport rec-enable", *this, TransportControllable::RecordEnable))
        , auto_input_button (ArdourButton::led_default_elements)
        , time_info_box (0)
        , auto_return_button (ArdourButton::led_default_elements)
@@ -294,8 +298,8 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], const char* localedir)
        , solo_alert_button (_("Solo"))
        , feedback_alert_button (_("Feedback"))
        , error_alert_button ( ArdourButton::just_led_default_elements )
-       , editor_meter(0)
        , editor_meter_peak_display()
+       , editor_meter(0)
        , _suspend_editor_meter_callbacks (false)
        , _numpad_locate_happening (false)
        , _session_is_new (false)
@@ -313,10 +317,13 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], const char* localedir)
        , export_video_dialog (X_("video-export"), _("Video Export Dialog"))
        , lua_script_window (X_("script-manager"), _("Script Manager"))
        , idleometer (X_("idle-o-meter"), _("Idle'o'Meter"))
+       , plugin_dsp_load_window (X_("plugin-dsp-load"), _("Plugin DSP Load"))
+       , transport_masters_window (X_("transport-masters"), _("Transport Masters"))
        , session_option_editor (X_("session-options-editor"), _("Properties"), boost::bind (&ARDOUR_UI::create_session_option_editor, this))
        , add_video_dialog (X_("add-video"), _("Add Video"), boost::bind (&ARDOUR_UI::create_add_video_dialog, this))
        , bundle_manager (X_("bundle-manager"), _("Bundle Manager"), boost::bind (&ARDOUR_UI::create_bundle_manager, this))
        , big_clock_window (X_("big-clock"), _("Big Clock"), boost::bind (&ARDOUR_UI::create_big_clock_window, this))
+       , big_transport_window (X_("big-transport"), _("Transport Controls"), boost::bind (&ARDOUR_UI::create_big_transport_window, this))
        , audio_port_matrix (X_("audio-connection-manager"), _("Audio Connections"), boost::bind (&ARDOUR_UI::create_global_port_matrix, this, ARDOUR::DataType::AUDIO))
        , midi_port_matrix (X_("midi-connection-manager"), _("MIDI Connections"), boost::bind (&ARDOUR_UI::create_global_port_matrix, this, ARDOUR::DataType::MIDI))
        , key_editor (X_("key-editor"), _("Keyboard Shortcuts"), boost::bind (&ARDOUR_UI::create_key_editor, this))
@@ -374,25 +381,10 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], const char* localedir)
        boost::function<void (string)> pc (boost::bind (&ARDOUR_UI::parameter_changed, this, _1));
        UIConfiguration::instance().map_parameters (pc);
 
-       roll_button.set_controllable (roll_controllable);
-       stop_button.set_controllable (stop_controllable);
-       goto_start_button.set_controllable (goto_start_controllable);
-       goto_end_button.set_controllable (goto_end_controllable);
-       auto_loop_button.set_controllable (auto_loop_controllable);
-       play_selection_button.set_controllable (play_selection_controllable);
-       rec_button.set_controllable (rec_controllable);
-
-       roll_button.set_name ("transport button");
-       stop_button.set_name ("transport button");
-       goto_start_button.set_name ("transport button");
-       goto_end_button.set_name ("transport button");
-       auto_loop_button.set_name ("transport button");
-       play_selection_button.set_name ("transport button");
-       rec_button.set_name ("transport recenable button");
-       midi_panic_button.set_name ("transport button");
-
-       ARDOUR::Diskstream::DiskOverrun.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::disk_overrun_handler, this), gui_context());
-       ARDOUR::Diskstream::DiskUnderrun.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::disk_underrun_handler, this), gui_context());
+       transport_ctrl.setup (this);
+
+       ARDOUR::DiskWriter::Overrun.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::disk_overrun_handler, this), gui_context());
+       ARDOUR::DiskReader::Underrun.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::disk_underrun_handler, this), gui_context());
 
        ARDOUR::Session::VersionMismatch.connect (forever_connections, MISSING_INVALIDATOR, boost::bind (&ARDOUR_UI::session_format_mismatch, this, _1, _2), gui_context());
 
@@ -461,7 +453,7 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], const char* localedir)
 
        TimeAxisViewItem::set_constant_heights ();
 
-        /* Set this up so that our window proxies can register actions */
+       /* Set this up so that our window proxies can register actions */
 
        ActionManager::init ();
 
@@ -480,11 +472,14 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], const char* localedir)
                bundle_manager.set_state (*ui_xml, 0);
                location_ui.set_state (*ui_xml, 0);
                big_clock_window.set_state (*ui_xml, 0);
+               big_transport_window.set_state (*ui_xml, 0);
                audio_port_matrix.set_state (*ui_xml, 0);
                midi_port_matrix.set_state (*ui_xml, 0);
                export_video_dialog.set_state (*ui_xml, 0);
                lua_script_window.set_state (*ui_xml, 0);
                idleometer.set_state (*ui_xml, 0);
+               plugin_dsp_load_window.set_state (*ui_xml, 0);
+               transport_masters_window.set_state (*ui_xml, 0);
        }
 
        /* Separate windows */
@@ -502,9 +497,12 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], const char* localedir)
        WM::Manager::instance().register_window (&bundle_manager);
        WM::Manager::instance().register_window (&location_ui);
        WM::Manager::instance().register_window (&big_clock_window);
+       WM::Manager::instance().register_window (&big_transport_window);
        WM::Manager::instance().register_window (&audio_port_matrix);
        WM::Manager::instance().register_window (&midi_port_matrix);
        WM::Manager::instance().register_window (&idleometer);
+       WM::Manager::instance().register_window (&plugin_dsp_load_window);
+       WM::Manager::instance().register_window (&transport_masters_window);
 
        /* do not retain position for add route dialog */
        add_route_dialog.set_state_mask (WindowProxy::Size);
@@ -527,8 +525,8 @@ ARDOUR_UI::pre_release_dialog ()
        ArdourDialog d (_("Pre-Release Warning"), true, false);
        d.add_button (Gtk::Stock::OK, Gtk::RESPONSE_OK);
 
-        Label* label = manage (new Label);
-        label->set_markup (string_compose (_("<b>Welcome to this pre-release build of %1 %2</b>\n\n\
+       Label* label = manage (new Label);
+       label->set_markup (string_compose (_("<b>Welcome to this pre-release build of %1 %2</b>\n\n\
 There are still several issues and bugs to be worked on,\n\
 as well as general workflow improvements, before this can be considered\n\
 release software. So, a few guidelines:\n\
@@ -538,7 +536,7 @@ release software. So, a few guidelines:\n\
 2) Please wait for a helpful writeup of new features.\n\
 3) <b>Please do NOT use the forums at ardour.org to report issues</b>.\n\
 4) Please <b>DO</b> use the bugtracker at http://tracker.ardour.org/ to report issues\n\
-   making sure to note the product version number as 5.0-pre.\n\
+   making sure to note the product version number as 6.0-pre.\n\
 5) Please <b>DO</b> use the ardour-users mailing list to discuss ideas and pass on comments.\n\
 6) Please <b>DO</b> join us on IRC for real time discussions about %1 %2. You\n\
    can get there directly from within the program via the Help->Chat menu option.\n\
@@ -548,11 +546,11 @@ Full information on all the above can be found on the support page at\n\
                 http://ardour.org/support\n\
 "), PROGRAM_NAME, VERSIONSTRING));
 
-        d.get_vbox()->set_border_width (12);
-        d.get_vbox()->pack_start (*label, false, false, 12);
-        d.get_vbox()->show_all ();
+       d.get_vbox()->set_border_width (12);
+       d.get_vbox()->pack_start (*label, false, false, 12);
+       d.get_vbox()->show_all ();
 
-        d.run ();
+       d.run ();
 }
 
 GlobalPortMatrixWindow*
@@ -595,7 +593,6 @@ ARDOUR_UI::engine_running ()
        }
        update_disk_space ();
        update_cpu_load ();
-       update_xrun_count ();
        update_sample_rate (AudioEngine::instance()->sample_rate());
        update_timecode_format ();
        update_peak_thread_work ();
@@ -674,6 +671,8 @@ ARDOUR_UI::post_engine ()
                throw failed_constructor ();
        }
 
+       transport_ctrl.map_actions ();
+
        /* Do this after setup_windows (), as that's when the _status_bar_visibility is created */
        XMLNode* n = Config->extra_xml (X_("UI"));
        if (n) {
@@ -764,7 +763,7 @@ ARDOUR_UI::post_engine ()
                vector<string>::iterator l;
 
                for (p = paths.begin(), l = labels.begin(); p != paths.end(); ++p, ++l) {
-                       output << "     <tr><th><kbd class=\"osc\">" << (*p).substr (9, string::npos);
+                       output << "     <tr><th><kbd class=\"osc\">" << (*p).substr (10, string::npos);
                        output << "</kbd></th><td>" << *l << "</td></tr>" << endl;
                }
                output << "  </tbody>\n  </table>" << endl;
@@ -776,7 +775,7 @@ ARDOUR_UI::post_engine ()
                GError *err = NULL;
                gint fd;
 
-               if ((fd = g_file_open_tmp ("akprintXXXXXX.html", &file_name, &err)) < 0) {
+               if ((fd = g_file_open_tmp ("list-of-menu-actionsXXXXXX.html", &file_name, &err)) < 0) {
                        if (err) {
                                error << string_compose (_("Could not open temporary file to print bindings (%1)"), err->message) << endmsg;
                                g_error_free (err);
@@ -863,7 +862,7 @@ ARDOUR_UI::~ARDOUR_UI ()
                delete gui_object_state; gui_object_state = 0;
                delete main_window_visibility;
                FastMeter::flush_pattern_cache ();
-               PixFader::flush_pattern_cache ();
+               ArdourFader::flush_pattern_cache ();
        }
 
 #ifndef NDEBUG
@@ -955,10 +954,10 @@ ARDOUR_UI::get_transport_controllable_state ()
 
        node->set_property (X_("roll"), roll_controllable->id());
        node->set_property (X_("stop"), stop_controllable->id());
-       node->set_property (X_("goto_start"), goto_start_controllable->id());
-       node->set_property (X_("goto_end"), goto_end_controllable->id());
-       node->set_property (X_("auto_loop"), auto_loop_controllable->id());
-       node->set_property (X_("play_selection"), play_selection_controllable->id());
+       node->set_property (X_("goto-start"), goto_start_controllable->id());
+       node->set_property (X_("goto-end"), goto_end_controllable->id());
+       node->set_property (X_("auto-loop"), auto_loop_controllable->id());
+       node->set_property (X_("play-selection"), play_selection_controllable->id());
        node->set_property (X_("rec"), rec_controllable->id());
        node->set_property (X_("shuttle"), shuttle_box.controllable()->id());
 
@@ -1101,7 +1100,7 @@ ARDOUR_UI::starting ()
                         * The wrapper startup script should set the environment variable 'ARDOUR_SELF'
                         */
                        const char *process_name = g_getenv ("ARDOUR_SELF");
-                       nsm->announce (PROGRAM_NAME, ":dirty:", process_name ? process_name : "ardour4");
+                       nsm->announce (PROGRAM_NAME, ":dirty:", process_name ? process_name : "ardour6");
 
                        unsigned int i = 0;
                        // wait for announce reply from nsm server
@@ -1184,15 +1183,13 @@ ARDOUR_UI::starting ()
                        Searchpath ds (ARDOUR::ardour_data_search_path());
                        ds.add_subdirectory_to_paths ("sessions");
                        vector<string> demos;
-                       find_files_matching_pattern (demos, ds, "*.tar.xz");
+                       find_files_matching_pattern (demos, ds, ARDOUR::session_archive_suffix);
 
                        ARDOUR::RecentSessions rs;
                        ARDOUR::read_recent_sessions (rs);
 
                        for (vector<string>::iterator i = demos.begin(); i != demos.end (); ++i) {
-                               /* "demo-session" must be inside "demo-session.tar.xz"
-                                * strip ".tar.xz"
-                                */
+                               /* "demo-session" must be inside "demo-session.<session_archive_suffix>" */
                                std::string name = basename_nosuffix (basename_nosuffix (*i));
                                std::string path = Glib::build_filename (dspd, name);
                                /* skip if session-dir already exists */
@@ -1282,11 +1279,6 @@ ARDOUR_UI::starting ()
 
        BootMessage (string_compose (_("%1 is ready for use"), PROGRAM_NAME));
 
-       if (splash && splash->is_visible()) {
-               // in 1 second, hide the splash screen
-               Glib::signal_timeout().connect (sigc::bind (sigc::ptr_fun (_hide_splash), this), 1000);
-       }
-
        /* all other dialogs are created conditionally */
 
        return 0;
@@ -1525,8 +1517,6 @@ void
 ARDOUR_UI::every_second ()
 {
        update_cpu_load ();
-       update_xrun_count ();
-       update_buffer_load ();
        update_disk_space ();
        update_timecode_format ();
        update_peak_thread_work ();
@@ -1548,8 +1538,7 @@ ARDOUR_UI::every_second ()
 void
 ARDOUR_UI::every_point_one_seconds ()
 {
-       // TODO get rid of this..
-       // ShuttleControl is updated directly via TransportStateChange signal
+       if (editor) editor->build_region_boundary_cache();
 }
 
 void
@@ -1580,7 +1569,7 @@ ARDOUR_UI::set_fps_timeout_connection ()
                 * signals to the GUI Thread..
                 */
                interval = floor(500. /* update twice per FPS, since Glib::signal_timeout is very irregular */
-                               * _session->frame_rate() / _session->nominal_frame_rate()
+                               * _session->sample_rate() / _session->nominal_sample_rate()
                                / _session->timecode_frames_per_second()
                                );
 #ifdef PLATFORM_WINDOWS
@@ -1600,19 +1589,19 @@ ARDOUR_UI::set_fps_timeout_connection ()
 }
 
 void
-ARDOUR_UI::update_sample_rate (framecnt_t)
+ARDOUR_UI::update_sample_rate (samplecnt_t)
 {
        char buf[64];
 
        ENSURE_GUI_THREAD (*this, &ARDOUR_UI::update_sample_rate, ignored)
 
-       if (!AudioEngine::instance()->connected()) {
+       if (!AudioEngine::instance()->running()) {
 
                snprintf (buf, sizeof (buf), "%s", _("Audio: <span foreground=\"red\">none</span>"));
 
        } else {
 
-               framecnt_t rate = AudioEngine::instance()->sample_rate();
+               samplecnt_t rate = AudioEngine::instance()->sample_rate();
 
                if (rate == 0) {
                        /* no sample rate available */
@@ -1672,6 +1661,9 @@ ARDOUR_UI::update_format ()
        case MBWF:
                s << _("MBWF");
                break;
+       case FLAC:
+               s << _("FLAC");
+               break;
        }
 
        s << " ";
@@ -1694,40 +1686,33 @@ ARDOUR_UI::update_format ()
 }
 
 void
-ARDOUR_UI::update_xrun_count ()
+ARDOUR_UI::update_cpu_load ()
 {
-       char buf[64];
+       const unsigned int x = _session ? _session->get_xrun_count () : 0;
+       double const c = AudioEngine::instance()->get_dsp_load ();
 
-       /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::resize_text_widgets
-          should also be changed.
-       */
+       const char* const bg = c > 90 ? " background=\"red\"" : "";
 
-       if (_session) {
-               const unsigned int x = _session->get_xrun_count ();
-               if (x > 9999) {
-                       snprintf (buf, sizeof (buf), _("X: <span foreground=\"%s\">&gt;10K</span>"), X_("red"));
-               } else {
-                       snprintf (buf, sizeof (buf), _("X: <span foreground=\"%s\">%u</span>"), x > 0 ? X_("red") : X_("green"), x);
-               }
+       char buf[64];
+       if (x > 9999) {
+               snprintf (buf, sizeof (buf), "DSP: <span%s>%.0f%%</span> (>10k)", bg, c);
+       } else if (x > 0) {
+               snprintf (buf, sizeof (buf), "DSP: <span%s>%.0f%%</span> (%d)", bg, c, x);
        } else {
-               snprintf (buf, sizeof (buf), _("X: <span foreground=\"%s\">?</span>"), X_("yellow"));
+               snprintf (buf, sizeof (buf), "DSP: <span%s>%.0f%%</span>", bg, c);
        }
-       xrun_label.set_markup (buf);
-       set_tip (xrun_label, _("Audio dropouts. Shift+click to reset"));
-}
 
-void
-ARDOUR_UI::update_cpu_load ()
-{
-       char buf[64];
+       dsp_load_label.set_markup (buf);
 
-       /* If this text is changed, the set_size_request_to_display_given_text call in ARDOUR_UI::resize_text_widgets
-          should also be changed.
-       */
+       if (x > 9999) {
+               snprintf (buf, sizeof (buf), _("DSP: %.1f%% X: >10k\n%s"), c, _("Shift+Click to clear xruns."));
+       } else if (x > 0) {
+               snprintf (buf, sizeof (buf), _("DSP: %.1f%% X: %u\n%s"), c, x, _("Shift+Click to clear xruns."));
+       } else {
+               snprintf (buf, sizeof (buf), _("DSP: %.1f%%"), c);
+       }
 
-       double const c = AudioEngine::instance()->get_dsp_load ();
-       snprintf (buf, sizeof (buf), _("DSP: <span foreground=\"%s\">%5.1f%%</span>"), c >= 90 ? X_("red") : X_("green"), c);
-       cpu_load_label.set_markup (buf);
+       ArdourWidgets::set_tooltip (dsp_load_label, buf);
 }
 
 void
@@ -1744,100 +1729,81 @@ ARDOUR_UI::update_peak_thread_work ()
 }
 
 void
-ARDOUR_UI::update_buffer_load ()
+ARDOUR_UI::count_recenabled_streams (Route& route)
 {
-       char buf[256];
-
-       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::resize_text_widgets
-          should also be changed.
-       */
-
-       if (_session) {
-               snprintf (
-                       buf, sizeof (buf),
-                       _("Buffers: <span foreground=\"green\">p:</span><span foreground=\"%s\">%" PRIu32 "%%</span> "
-                                  "<span foreground=\"green\">c:</span><span foreground=\"%s\">%" PRIu32 "%%</span>"),
-                       playback <= 5 ? X_("red") : X_("green"),
-                       playback,
-                       capture <= 5 ? X_("red") : X_("green"),
-                       capture
-                       );
-
-               buffer_load_label.set_markup (buf);
-       } else {
-               buffer_load_label.set_text ("");
+       Track* track = dynamic_cast<Track*>(&route);
+       if (track && track->rec_enable_control()->get_value()) {
+               rec_enabled_streams += track->n_inputs().n_total();
        }
 }
 
 void
-ARDOUR_UI::count_recenabled_streams (Route& route)
+ARDOUR_UI::format_disk_space_label (float remain_sec)
 {
-       Track* track = dynamic_cast<Track*>(&route);
-       if (track && track->rec_enable_control()->get_value()) {
-               rec_enabled_streams += track->n_inputs().n_total();
+       if (remain_sec < 0) {
+               disk_space_label.set_text (_("N/A"));
+               ArdourWidgets::set_tooltip (disk_space_label, _("Unknown"));
+               return;
+       }
+
+       char buf[64];
+
+       int sec = floor (remain_sec);
+       int hrs  = sec / 3600;
+       int mins = (sec / 60) % 60;
+       int secs = sec % 60;
+       snprintf (buf, sizeof(buf), _("%02dh:%02dm:%02ds"), hrs, mins, secs);
+       ArdourWidgets::set_tooltip (disk_space_label, buf);
+
+       if (remain_sec > 86400) {
+               disk_space_label.set_text (_("Rec: >24h"));
+               return;
+       } else if (remain_sec > 32400 /* 9 hours */) {
+               snprintf (buf, sizeof (buf), "Rec: %.0fh", remain_sec / 3600.f);
+       } else if (remain_sec > 5940 /* 99 mins */) {
+               snprintf (buf, sizeof (buf), "Rec: %.1fh", remain_sec / 3600.f);
+       } else {
+               snprintf (buf, sizeof (buf), "Rec: %.0fm", remain_sec / 60.f);
        }
+       disk_space_label.set_text (buf);
+
 }
 
 void
 ARDOUR_UI::update_disk_space()
 {
        if (_session == 0) {
+               format_disk_space_label (-1);
                return;
        }
 
-       boost::optional<framecnt_t> opt_frames = _session->available_capture_duration();
-       char buf[64];
-       framecnt_t fr = _session->frame_rate();
+       boost::optional<samplecnt_t> opt_samples = _session->available_capture_duration();
+       samplecnt_t fr = _session->sample_rate();
 
        if (fr == 0) {
                /* skip update - no SR available */
+               format_disk_space_label (-1);
                return;
        }
 
-       if (!opt_frames) {
+       if (!opt_samples) {
                /* 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>"));
+               format_disk_space_label (-1);
+       } else if (opt_samples.get_value_or (0) == max_samplecnt) {
+               format_disk_space_label (max_samplecnt);
        } else {
                rec_enabled_streams = 0;
                _session->foreach_route (this, &ARDOUR_UI::count_recenabled_streams, false);
 
-               framecnt_t frames = opt_frames.get_value_or (0);
+               samplecnt_t samples = opt_samples.get_value_or (0);
 
                if (rec_enabled_streams) {
-                       frames /= rec_enabled_streams;
+                       samples /= rec_enabled_streams;
                }
 
-               int hrs;
-               int mins;
-               int secs;
-
-               hrs  = frames / (fr * 3600);
-
-               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
-                               );
-               }
+               format_disk_space_label (samples / (float)fr);
        }
 
-       disk_space_label.set_markup (buf);
 }
 
 void
@@ -1847,11 +1813,11 @@ ARDOUR_UI::update_timecode_format ()
 
        if (_session) {
                bool matching;
-               TimecodeSlave* tcslave;
-               SyncSource sync_src = Config->get_sync_source();
+               boost::shared_ptr<TimecodeTransportMaster> tcmaster;
+               boost::shared_ptr<TransportMaster> tm = TransportMasterManager::instance().current();
 
-               if ((sync_src == LTC || sync_src == MTC) && (tcslave = dynamic_cast<TimecodeSlave*>(_session->slave())) != 0) {
-                       matching = (tcslave->apparent_timecode_format() == _session->config.get_timecode_format());
+               if ((tm->type() == LTC || tm->type() == MTC) && (tcmaster = boost::dynamic_pointer_cast<TimecodeTransportMaster>(tm)) != 0) {
+                       matching = (tcmaster->apparent_timecode_format() == _session->config.get_timecode_format());
                } else {
                        matching = true;
                }
@@ -1927,20 +1893,16 @@ ARDOUR_UI::open_recent_session ()
 
                can_return = false;
        }
-       if (splash && splash->is_visible()) {
-               // in 1 second, hide the splash screen
-               Glib::signal_timeout().connect (sigc::bind (sigc::ptr_fun (_hide_splash), this), 1000);
-       }
 }
 
 bool
 ARDOUR_UI::check_audioengine (Gtk::Window& parent)
 {
-       if (!AudioEngine::instance()->connected()) {
+       if (!AudioEngine::instance()->running()) {
                MessageDialog msg (parent, string_compose (
-                                          _("%1 is not connected to any audio backend.\n"
-                                            "You cannot open or close sessions in this condition"),
-                                          PROGRAM_NAME));
+                                          _("%1 is not connected to any audio backend.\n"
+                                          "You cannot open or close sessions in this condition"),
+                                          PROGRAM_NAME));
                pop_back_splash (msg);
                msg.run ();
                return false;
@@ -1974,7 +1936,7 @@ ARDOUR_UI::open_session ()
                string default_session_folder = Config->get_default_session_parent_dir();
                open_session_selector.add_shortcut_folder (default_session_folder);
        }
-       catch (Glib::Error & e) {
+       catch (Glib::Error const& e) {
                std::cerr << "open_session_selector.add_shortcut_folder() threw Glib::Error " << e.what() << std::endl;
        }
 
@@ -1984,7 +1946,7 @@ ARDOUR_UI::open_session ()
        open_session_selector.add_filter (session_filter);
 
        FileFilter archive_filter;
-       archive_filter.add_pattern (X_("*.tar.xz"));
+       archive_filter.add_pattern (string_compose(X_("*%1"), ARDOUR::session_archive_suffix));
        archive_filter.set_name (_("Session Archives"));
 
        open_session_selector.add_filter (archive_filter);
@@ -2021,16 +1983,6 @@ ARDOUR_UI::open_session ()
        }
 }
 
-void
-ARDOUR_UI::session_add_vca (const string& name_template, uint32_t n)
-{
-       if (!_session) {
-               return;
-       }
-
-       _session->vca_manager().create_vca (n, name_template);
-}
-
 void
 ARDOUR_UI::session_add_mixed_track (
                const ChanCount& input,
@@ -2043,10 +1995,7 @@ ARDOUR_UI::session_add_mixed_track (
                Plugin::PresetRecord* pset,
                ARDOUR::PresentationInfo::order_t order)
 {
-       if (_session == 0) {
-               warning << _("You cannot add a track without a session already loaded.") << endmsg;
-               return;
-       }
+       assert (_session);
 
        if (Profile->get_mixbus ()) {
                strict_io = true;
@@ -2136,10 +2085,7 @@ ARDOUR_UI::session_add_audio_route (
        list<boost::shared_ptr<AudioTrack> > tracks;
        RouteList routes;
 
-       if (_session == 0) {
-               warning << _("You cannot add a track or bus without a session already loaded.") << endmsg;
-               return;
-       }
+       assert (_session);
 
        try {
                if (track) {
@@ -2176,6 +2122,32 @@ ARDOUR_UI::session_add_audio_route (
        }
 }
 
+void
+ARDOUR_UI::session_add_foldback_bus (uint32_t how_many, string const & name_template)
+{
+       RouteList routes;
+
+       assert (_session);
+
+       try {
+               routes = _session->new_audio_route (2, 2, 0, how_many, name_template, PresentationInfo::FoldbackBus, -1);
+
+               if (routes.size() != how_many) {
+                       error << string_compose (P_("could not create %1 new foldback bus", "could not create %1 new foldback busses", how_many), how_many)
+                             << endmsg;
+               }
+       }
+
+       catch (...) {
+               display_insufficient_ports_message ();
+               return;
+       }
+
+       for (RouteList::iterator i = routes.begin(); i != routes.end(); ++i) {
+               (*i)->set_strict_io (true);
+       }
+}
+
 void
 ARDOUR_UI::display_insufficient_ports_message ()
 {
@@ -2199,7 +2171,7 @@ ARDOUR_UI::transport_goto_start ()
                */
 
                if (editor) {
-                       editor->center_screen (_session->current_start_frame ());
+                       editor->center_screen (_session->current_start_sample ());
                }
        }
 }
@@ -2227,30 +2199,30 @@ ARDOUR_UI::transport_goto_wallclock ()
 
                time_t now;
                struct tm tmnow;
-               framepos_t frames;
+               samplepos_t samples;
 
                time (&now);
                localtime_r (&now, &tmnow);
 
-               framecnt_t frame_rate = _session->frame_rate();
+               samplecnt_t sample_rate = _session->sample_rate();
 
-               if (frame_rate == 0) {
+               if (sample_rate == 0) {
                        /* no frame rate available */
                        return;
                }
 
-               frames = tmnow.tm_hour * (60 * 60 * frame_rate);
-               frames += tmnow.tm_min * (60 * frame_rate);
-               frames += tmnow.tm_sec * frame_rate;
+               samples = tmnow.tm_hour * (60 * 60 * sample_rate);
+               samples += tmnow.tm_min * (60 * sample_rate);
+               samples += tmnow.tm_sec * sample_rate;
 
-               _session->request_locate (frames, _session->transport_rolling ());
+               _session->request_locate (samples, _session->transport_rolling ());
 
                /* force displayed area in editor to start no matter
                   what "follow playhead" setting is.
                */
 
                if (editor) {
-                       editor->center_screen (frames);
+                       editor->center_screen (samples);
                }
        }
 }
@@ -2259,15 +2231,15 @@ void
 ARDOUR_UI::transport_goto_end ()
 {
        if (_session) {
-               framepos_t const frame = _session->current_end_frame();
-               _session->request_locate (frame);
+               samplepos_t const sample = _session->current_end_sample();
+               _session->request_locate (sample);
 
                /* force displayed area in editor to start no matter
                   what "follow playhead" setting is.
                */
 
                if (editor) {
-                       editor->center_screen (frame);
+                       editor->center_screen (sample);
                }
        }
 }
@@ -2361,9 +2333,8 @@ ARDOUR_UI::transport_roll ()
                return;
        }
 
-#if 0
        if (_session->config.get_external_sync()) {
-               switch (Config->get_sync_source()) {
+               switch (TransportMasterManager::instance().current()->type()) {
                case Engine:
                        break;
                default:
@@ -2371,7 +2342,6 @@ ARDOUR_UI::transport_roll ()
                        return;
                }
        }
-#endif
 
        bool rolling = _session->transport_rolling();
 
@@ -2425,7 +2395,7 @@ ARDOUR_UI::toggle_roll (bool with_abort, bool roll_out_of_bounded_mode)
        }
 
        if (_session->config.get_external_sync()) {
-               switch (Config->get_sync_source()) {
+               switch (TransportMasterManager::instance().current()->type()) {
                case Engine:
                        break;
                default:
@@ -2480,9 +2450,9 @@ ARDOUR_UI::toggle_roll (bool with_abort, bool roll_out_of_bounded_mode)
                         * want to do this.
                         */
 
-                       if (UIConfiguration::instance().get_follow_edits() && ( editor->get_selection().time.front().start == _session->transport_frame() ) ) {  //if playhead is exactly at the start of a range, we can assume it was placed there by follow_edits
+                       if (UIConfiguration::instance().get_follow_edits() && ( editor->get_selection().time.front().start == _session->transport_sample() ) ) {  //if playhead is exactly at the start of a range, we can assume it was placed there by follow_edits
                                _session->request_play_range (&editor->get_selection().time, true);
-                               _session->set_requested_return_frame( editor->get_selection().time.front().start );  //force an auto-return here
+                               _session->set_requested_return_sample( editor->get_selection().time.front().start );  //force an auto-return here
                        }
                        _session->request_transport_speed (1.0f);
                }
@@ -2641,10 +2611,6 @@ void
 ARDOUR_UI::map_transport_state ()
 {
        if (!_session) {
-               auto_loop_button.unset_active_state ();
-               play_selection_button.unset_active_state ();
-               roll_button.unset_active_state ();
-               stop_button.set_active_state (Gtkmm2ext::ExplicitActive);
                layered_button.set_sensitive (false);
                return;
        }
@@ -2654,52 +2620,9 @@ ARDOUR_UI::map_transport_state ()
        float sp = _session->transport_speed();
 
        if (sp != 0.0f) {
-
-               /* we're rolling */
-
-               if (_session->get_play_range()) {
-
-                       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 (true);
-                       play_selection_button.set_active (false);
-                       if (Config->get_loop_is_mode()) {
-                               roll_button.set_active (true);
-                       } else {
-                               roll_button.set_active (false);
-                       }
-
-               } else {
-
-                       roll_button.set_active (true);
-                       play_selection_button.set_active (false);
-                       auto_loop_button.set_active (false);
-               }
-
-               if (UIConfiguration::instance().get_follow_edits() && !_session->config.get_external_sync()) {
-                       /* light up both roll and play-selection if they are joined */
-                       roll_button.set_active (true);
-                       play_selection_button.set_active (true);
-               }
                layered_button.set_sensitive (!_session->actively_recording ());
-
-               stop_button.set_active (false);
-
        } else {
-
                layered_button.set_sensitive (true);
-               stop_button.set_active (true);
-               roll_button.set_active (false);
-               play_selection_button.set_active (false);
-               if (Config->get_loop_is_mode ()) {
-                       auto_loop_button.set_active (_session->get_play_loop());
-               } else {
-                       auto_loop_button.set_active (false);
-               }
                update_disk_space ();
        }
 }
@@ -2707,7 +2630,6 @@ ARDOUR_UI::map_transport_state ()
 void
 ARDOUR_UI::blink_handler (bool blink_on)
 {
-       transport_rec_enable_blink (blink_on);
        sync_blink (blink_on);
 
        if (!UIConfiguration::instance().get_blink_alert_indicators()) {
@@ -2725,7 +2647,7 @@ ARDOUR_UI::update_clocks ()
        if (!_session) return;
 
        if (editor && !editor->dragging_playhead()) {
-               Clock (_session->audible_frame(), false, editor->get_preferred_edit_position (EDIT_IGNORE_PHEAD)); /* EMIT_SIGNAL */
+               Clock (_session->audible_sample()); /* EMIT_SIGNAL */
        }
 }
 
@@ -2771,6 +2693,33 @@ ARDOUR_UI::save_session_as ()
                return;
        }
 
+       if (_session->dirty()) {
+               vector<string> actions;
+               actions.push_back (_("Abort save-as"));
+               actions.push_back (_("Don't save now, just save-as"));
+               actions.push_back (_("Save it first"));
+               switch (ask_about_saving_session(actions)) {
+                       case -1:
+                               return;
+                               break;
+                       case 1:
+                               if (save_state_canfail ("")) {
+                                       MessageDialog msg (_main_window,
+                                                       string_compose (_("\
+%1 was unable to save your session.\n\n\
+If you still wish to proceed, please use the\n\n\
+\"Don't save now\" option."), PROGRAM_NAME));
+                                       pop_back_splash(msg);
+                                       msg.run ();
+                                       return;
+                               }
+                               /* fall through */
+                       case 0:
+                               _session->remove_pending_capture_state ();
+                               break;
+               }
+       }
+
        if (!save_as_dialog) {
                save_as_dialog = new SaveAsDialog;
        }
@@ -2846,7 +2795,6 @@ ARDOUR_UI::save_session_as ()
        if (!sa.include_media && sa.switch_to) {
                unload_session (false);
                load_session (sa.final_session_folder_name, sa.new_name);
-               hide_splash ();
        }
 }
 
@@ -2870,7 +2818,7 @@ ARDOUR_UI::archive_session ()
                return;
        }
 
-       if (_session->archive_session (sad.target_folder(), sad.name(), sad.encode_option (), sad.only_used_sources (), &sad)) {
+       if (_session->archive_session (sad.target_folder(), sad.name(), sad.encode_option (), sad.compression_level (), sad.only_used_sources (), &sad)) {
                MessageDialog msg (_("Session Archiving failed."));
                msg.run ();
        }
@@ -2886,13 +2834,16 @@ ARDOUR_UI::quick_snapshot_session (bool switch_to_it)
                time (&n);
                localtime_r (&n, &local_time);
                strftime (timebuf, sizeof(timebuf), "%FT%H.%M.%S", &local_time);
+               if (switch_to_it && _session->dirty ()) {
+                       save_state_canfail ("");
+               }
 
                save_state (timebuf, switch_to_it);
 }
 
 
 bool
-ARDOUR_UI::process_snapshot_session_prompter (ArdourPrompter& prompter, bool switch_to_it)
+ARDOUR_UI::process_snapshot_session_prompter (Prompter& prompter, bool switch_to_it)
 {
        string snapname;
 
@@ -2904,7 +2855,7 @@ ARDOUR_UI::process_snapshot_session_prompter (ArdourPrompter& prompter, bool swi
                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));
+                                                            "snapshot names may not contain a '%1' character"), illegal));
                        msg.run ();
                        return false;
                }
@@ -2938,8 +2889,34 @@ ARDOUR_UI::process_snapshot_session_prompter (ArdourPrompter& prompter, bool swi
 void
 ARDOUR_UI::snapshot_session (bool switch_to_it)
 {
-       ArdourPrompter prompter (true);
+       if (switch_to_it && _session->dirty()) {
+               vector<string> actions;
+               actions.push_back (_("Abort saving snapshot"));
+               actions.push_back (_("Don't save now, just snapshot"));
+               actions.push_back (_("Save it first"));
+               switch (ask_about_saving_session(actions)) {
+                       case -1:
+                               return;
+                               break;
+                       case 1:
+                               if (save_state_canfail ("")) {
+                                       MessageDialog msg (_main_window,
+                                                       string_compose (_("\
+%1 was unable to save your session.\n\n\
+If you still wish to proceed, please use the\n\n\
+\"Don't save now\" option."), PROGRAM_NAME));
+                                       pop_back_splash(msg);
+                                       msg.run ();
+                                       return;
+                               }
+                               /* fall through */
+                       case 0:
+                               _session->remove_pending_capture_state ();
+                               break;
+               }
+       }
 
+       Prompter prompter (true);
        prompter.set_name ("Prompter");
        prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
        if (switch_to_it) {
@@ -2983,7 +2960,7 @@ ARDOUR_UI::rename_session ()
                return;
        }
 
-       ArdourPrompter prompter (true);
+       Prompter prompter (true);
        string name;
 
        prompter.set_name ("Prompter");
@@ -3004,7 +2981,7 @@ ARDOUR_UI::rename_session ()
 
                        if (illegal) {
                                MessageDialog msg (string_compose (_("To ensure compatibility with various systems\n"
-                                                                    "session names may not contain a '%1' character"), illegal));
+                                                                    "session names may not contain a '%1' character"), illegal));
                                msg.run ();
                                goto again;
                        }
@@ -3096,88 +3073,49 @@ ARDOUR_UI::secondary_clock_value_changed ()
                _session->request_locate (secondary_clock->current_time ());
        }
 }
-
 void
-ARDOUR_UI::transport_rec_enable_blink (bool onoff)
+ARDOUR_UI::save_template_dialog_response (int response, SaveTemplateDialog* d)
 {
-       if (_session == 0) {
-               return;
-       }
+       if (response == RESPONSE_ACCEPT) {
+               const string name = d->get_template_name ();
+               const string desc = d->get_description ();
 
-       if (_session->step_editing()) {
-               return;
-       }
-
-       Session::RecordState const r = _session->record_status ();
-       bool const h = _session->have_rec_enabled_track ();
-
-       if (r == Session::Enabled || (r == Session::Recording && !h)) {
-               if (onoff) {
-                       rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
-               } else {
-                       rec_button.set_active_state (Gtkmm2ext::Off);
-               }
-       } else if (r == Session::Recording && h) {
-               rec_button.set_active_state (Gtkmm2ext::ExplicitActive);
-       } else {
-               rec_button.unset_active_state ();
-       }
-}
-
-bool
-ARDOUR_UI::process_save_template_prompter (ArdourPrompter& prompter)
-{
-       string name;
-
-       prompter.get_result (name);
-
-       if (name.length()) {
-               int failed = _session->save_template (name);
+               int failed = _session->save_template (name, desc);
 
                if (failed == -2) { /* file already exists. */
-                       bool overwrite = overwrite_file_dialog (prompter,
+                       bool overwrite = overwrite_file_dialog (*d,
                                                                _("Confirm Template Overwrite"),
                                                                _("A template already exists with that name. Do you want to overwrite it?"));
 
                        if (overwrite) {
-                               _session->save_template (name, true);
+                               _session->save_template (name, desc, true);
                        }
                        else {
-                               return false;
+                               d->show ();
+                               return;
                        }
                }
        }
-
-       return true;
+       delete d;
 }
 
 void
 ARDOUR_UI::save_template ()
 {
-       ArdourPrompter prompter (true);
-
        if (!check_audioengine (_main_window)) {
                return;
        }
 
-       prompter.set_name (X_("Prompter"));
-       prompter.set_title (_("Save Template"));
-       prompter.set_prompt (_("Name for template:"));
-       prompter.set_initial_text(_session->name() + _("-template"));
-       prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
-
-       bool finished = false;
-       while (!finished) {
-               switch (prompter.run()) {
-               case RESPONSE_ACCEPT:
-                       finished = process_save_template_prompter (prompter);
-                       break;
+       const std::string desc = SessionMetadata::Metadata()->description ();
+       SaveTemplateDialog* d = new SaveTemplateDialog (_session->name (), desc);
+       d->signal_response().connect (sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::save_template_dialog_response), d));
+       d->show ();
+}
 
-               default:
-                       finished = true;
-                       break;
-               }
-       }
+void ARDOUR_UI::manage_templates ()
+{
+       TemplateDialog td;
+       td.run();
 }
 
 void
@@ -3229,44 +3167,14 @@ ARDOUR_UI::build_session_from_dialog (SessionDialog& sd, const std::string& sess
        BusProfile bus_profile;
 
        if (nsm) {
-
                bus_profile.master_out_channels = 2;
-               bus_profile.input_ac = AutoConnectPhysical;
-               bus_profile.output_ac = AutoConnectMaster;
-               bus_profile.requested_physical_in = 0; // use all available
-               bus_profile.requested_physical_out = 0; // use all available
-
        } else {
-
                /* get settings from advanced section of NSD */
-
-               if (sd.create_master_bus()) {
-                       bus_profile.master_out_channels = (uint32_t) sd.master_channel_count();
-               } else {
-                       bus_profile.master_out_channels = 0;
-               }
-
-               if (sd.connect_inputs()) {
-                       bus_profile.input_ac = AutoConnectPhysical;
-               } else {
-                       bus_profile.input_ac = AutoConnectOption (0);
-               }
-
-               bus_profile.output_ac = AutoConnectOption (0);
-
-               if (sd.connect_outputs ()) {
-                       if (sd.connect_outs_to_master()) {
-                               bus_profile.output_ac = AutoConnectMaster;
-                       } else if (sd.connect_outs_to_physical()) {
-                               bus_profile.output_ac = AutoConnectPhysical;
-                       }
-               }
-
-               bus_profile.requested_physical_in = (uint32_t) sd.input_limit_count();
-               bus_profile.requested_physical_out = (uint32_t) sd.output_limit_count();
+               bus_profile.master_out_channels = (uint32_t) sd.master_channel_count();
        }
 
-       if (build_session (session_path, session_name, bus_profile)) {
+       // NULL profile: no master, no monitor
+       if (build_session (session_path, session_name, bus_profile.master_out_channels > 0 ? &bus_profile : NULL)) {
                return -1;
        }
 
@@ -3354,7 +3262,7 @@ ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, stri
        /* if there is already a session, relabel the button
           on the SessionDialog so that we don't Quit directly
        */
-       cancel_not_quit = (_session != 0);
+       cancel_not_quit = (_session != 0) && !quit_on_cancel;
 
        if (_session && _session->dirty()) {
                if (unload_session (false)) {
@@ -3423,14 +3331,11 @@ ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, stri
                                break;
                        default:
                                if (quit_on_cancel) {
-                                       // JE - Currently (July 2014) this section can only get reached if the
-                                       // user quits from the main 'Session Setup' dialog (i.e. reaching this
-                                       // point does NOT indicate an abnormal termination). Therefore, let's
-                                       // behave gracefully (i.e. let's do some cleanup) before we call exit()
+                                       ARDOUR_UI::finish ();
+                                       Gtkmm2ext::Application::instance()->cleanup();
                                        ARDOUR::cleanup ();
                                        pthread_cancel_all ();
-
-                                       exit (1);
+                                       return -1; // caller is responsible to call exit()
                                } else {
                                        return ret;
                                }
@@ -3447,7 +3352,7 @@ ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, stri
                session_path = session_dialog.session_folder ();
 
                if (nsm) {
-                       likely_new = true;
+                       likely_new = true;
                }
 
                if (!likely_new) {
@@ -3484,12 +3389,12 @@ ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, stri
 
                if (session_name[0] == G_DIR_SEPARATOR ||
 #ifdef PLATFORM_WINDOWS
-                   (session_name.length() > 3 && session_name[1] == ':' && session_name[2] == G_DIR_SEPARATOR)
+                  (session_name.length() > 3 && session_name[1] == ':' && session_name[2] == G_DIR_SEPARATOR)
 #else
-                   (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)
+                  (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)
 #endif
-                        )
+               )
                {
 
                        /* absolute path or cwd-relative path specified for session name: infer session folder
@@ -3507,9 +3412,9 @@ ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, stri
 
                        if (illegal) {
                                MessageDialog msg (session_dialog,
-                                                  string_compose (_("To ensure compatibility with various systems\n"
-                                                                    "session names may not contain a '%1' character"),
-                                                                  illegal));
+                                                  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;
@@ -3546,7 +3451,7 @@ ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, stri
                        if (illegal) {
                                pop_back_splash (session_dialog);
                                MessageDialog msg (session_dialog, string_compose(_("To ensure compatibility with various systems\n"
-                                                                                   "session names may not contain a '%1' character"), illegal));
+                                                                                   "session names may not contain a '%1' character"), illegal));
                                msg.run ();
                                ARDOUR_COMMAND_LINE::session_name = ""; // cancel that
                                continue;
@@ -3555,7 +3460,12 @@ ARDOUR_UI::get_session_parameters (bool quit_on_cancel, bool should_be_new, stri
                        _session_is_new = true;
                }
 
-               if (likely_new && template_name.empty()) {
+               if (!template_name.empty() && template_name.substr (0, 11) == "urn:ardour:") {
+
+                       ret = build_session_from_dialog (session_dialog, session_path, session_name);
+                       meta_session_setup (template_name.substr (11));
+
+               } else if (likely_new && template_name.empty()) {
 
                        ret = build_session_from_dialog (session_dialog, session_path, session_name);
 
@@ -3602,10 +3512,6 @@ ARDOUR_UI::close_session()
        if (get_session_parameters (true, false)) {
                exit (1);
        }
-       if (splash && splash->is_visible()) {
-               // in 1 second, hide the splash screen
-               Glib::signal_timeout().connect (sigc::bind (sigc::ptr_fun (_hide_splash), this), 1000);
-       }
 }
 
 /** @param snap_name Snapshot name (without .ardour suffix).
@@ -3614,6 +3520,18 @@ ARDOUR_UI::close_session()
 int
 ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name, std::string mix_template)
 {
+       /* load_session calls flush_pending() which allows
+        * GUI interaction and potentially loading another session
+        * (that was easy via snapshot sidebar).
+        * Recursing into load_session() from load_session() and recusive
+        * event loops causes all kind of crashes.
+        */
+       assert (!session_load_in_progress);
+       if (session_load_in_progress) {
+               return -1;
+       }
+       PBD::Unwinder<bool> lsu (session_load_in_progress, true);
+
        Session *new_session;
        int unload_status;
        int retval = -1;
@@ -3629,8 +3547,6 @@ ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name,
                }
        }
 
-       session_loaded = false;
-
        loading_message (string_compose (_("Please wait while %1 loads your session"), PROGRAM_NAME));
 
        try {
@@ -3639,7 +3555,7 @@ ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name,
 
        /* this one is special */
 
-       catch (AudioEngine::PortRegistrationFailure& err) {
+       catch (AudioEngine::PortRegistrationFailure const& err) {
 
                MessageDialog msg (err.what(),
                                   true,
@@ -3664,9 +3580,9 @@ ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name,
                }
                goto out;
        }
-       catch (SessionException e) {
+       catch (SessionException const& e) {
                MessageDialog msg (string_compose(
-                                          _("Session \"%1 (snapshot %2)\" did not load successfully: %3"),
+                                          _("Session \"%1 (snapshot %2)\" did not load successfully:\n%3"),
                                           path, snap_name, e.what()),
                                   true,
                                   Gtk::MESSAGE_INFO,
@@ -3687,8 +3603,8 @@ ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name,
        catch (...) {
 
                MessageDialog msg (string_compose(
-                                          _("Session \"%1 (snapshot %2)\" did not load successfully"),
-                                          path, snap_name),
+                                          _("Session \"%1 (snapshot %2)\" did not load successfully."),
+                                          path, snap_name),
                                   true,
                                   Gtk::MESSAGE_INFO,
                                   BUTTONS_OK);
@@ -3740,8 +3656,6 @@ ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name,
 
        set_session (new_session);
 
-       session_loaded = true;
-
        if (_session) {
                _session->set_clean ();
        }
@@ -3760,17 +3674,31 @@ ARDOUR_UI::load_session (const std::string& path, const std::string& snap_name,
 #endif
        retval = 0;
 
+       if (!mix_template.empty ()) {
+               /* if mix_template is given, assume this is a new session */
+               string metascript = Glib::build_filename (mix_template, "template.lua");
+               meta_session_setup (metascript);
+       }
+
+
   out:
+       /* For successful session load the splash is hidden by ARDOUR_UI::first_idle,
+        * which is queued by set_session().
+        * If session-loading fails we hide it explicitly.
+        * This covers both cases in a central place.
+        */
+       if (retval) {
+               hide_splash ();
+       }
        return retval;
 }
 
 int
-ARDOUR_UI::build_session (const std::string& path, const std::string& snap_name, BusProfile& bus_profile)
+ARDOUR_UI::build_session (const std::string& path, const std::string& snap_name, BusProfile* bus_profile)
 {
        Session *new_session;
        int x;
 
-       session_loaded = false;
        x = unload_session ();
 
        if (x < 0) {
@@ -3782,10 +3710,10 @@ ARDOUR_UI::build_session (const std::string& path, const std::string& snap_name,
        _session_is_new = true;
 
        try {
-               new_session = new Session (*AudioEngine::instance(), path, snap_name, &bus_profile);
+               new_session = new Session (*AudioEngine::instance(), path, snap_name, bus_profile);
        }
 
-       catch (SessionException e) {
+       catch (SessionException const& e) {
                cerr << "Here are the errors associated with this failed session:\n";
                dump_errors (cerr);
                cerr << "---------\n";
@@ -3835,13 +3763,146 @@ ARDOUR_UI::build_session (const std::string& path, const std::string& snap_name,
 
        set_session (new_session);
 
-       session_loaded = true;
-
        new_session->save_state(new_session->name());
 
        return 0;
 }
 
+
+static void _lua_print (std::string s) {
+#ifndef NDEBUG
+       std::cout << "LuaInstance: " << s << "\n";
+#endif
+       PBD::info << "LuaInstance: " << s << endmsg;
+}
+
+std::map<std::string, std::string>
+ARDOUR_UI::route_setup_info (const std::string& script_path)
+{
+       std::map<std::string, std::string> rv;
+
+       if (!Glib::file_test (script_path, Glib::FILE_TEST_EXISTS | Glib::FILE_TEST_IS_REGULAR)) {
+               return rv;
+       }
+
+       LuaState lua;
+       lua.Print.connect (&_lua_print);
+       lua.sandbox (true);
+
+       lua_State* L = lua.getState();
+       LuaInstance::register_classes (L);
+       LuaBindings::set_session (L, _session);
+       luabridge::push <PublicEditor *> (L, &PublicEditor::instance());
+       lua_setglobal (L, "Editor");
+
+       lua.do_command ("function ardour () end");
+       lua.do_file (script_path);
+
+       try {
+               luabridge::LuaRef fn = luabridge::getGlobal (L, "route_setup");
+               if (!fn.isFunction ()) {
+                       return rv;
+               }
+               luabridge::LuaRef rs = fn ();
+               if (!rs.isTable ()) {
+                       return rv;
+               }
+               for (luabridge::Iterator i(rs); !i.isNil (); ++i) {
+                       if (!i.key().isString()) {
+                               continue;
+                       }
+                       std::string key = i.key().tostring();
+                       if (i.value().isString() || i.value().isNumber() || i.value().isBoolean()) {
+                               rv[key] = i.value().tostring();
+                       }
+               }
+       } catch (luabridge::LuaException const& e) {
+               cerr << "LuaException:" << e.what () << endl;
+       } catch (...) { }
+       return rv;
+}
+
+void
+ARDOUR_UI::meta_route_setup (const std::string& script_path)
+{
+       if (!Glib::file_test (script_path, Glib::FILE_TEST_EXISTS | Glib::FILE_TEST_IS_REGULAR)) {
+               return;
+       }
+       assert (add_route_dialog);
+
+       int count;
+       if ((count = add_route_dialog->count()) <= 0) {
+               return;
+       }
+
+       LuaState lua;
+       lua.Print.connect (&_lua_print);
+       lua.sandbox (true);
+
+       lua_State* L = lua.getState();
+       LuaInstance::register_classes (L);
+       LuaBindings::set_session (L, _session);
+       luabridge::push <PublicEditor *> (L, &PublicEditor::instance());
+       lua_setglobal (L, "Editor");
+
+       lua.do_command ("function ardour () end");
+       lua.do_file (script_path);
+
+       luabridge::LuaRef args (luabridge::newTable (L));
+
+       args["name"]       = add_route_dialog->name_template ();
+       args["insert_at"]  = translate_order (add_route_dialog->insert_at());
+       args["group"]      = add_route_dialog->route_group ();
+       args["strict_io"]  = add_route_dialog->use_strict_io ();
+       args["instrument"] = add_route_dialog->requested_instrument ();
+       args["track_mode"] = add_route_dialog->mode ();
+       args["channels"]   = add_route_dialog->channel_count ();
+       args["how_many"]   = count;
+
+       try {
+               luabridge::LuaRef fn = luabridge::getGlobal (L, "factory");
+               if (fn.isFunction()) {
+                       fn (args)();
+               }
+       } catch (luabridge::LuaException const& e) {
+               cerr << "LuaException:" << e.what () << endl;
+       } catch (...) {
+               display_insufficient_ports_message ();
+       }
+}
+
+void
+ARDOUR_UI::meta_session_setup (const std::string& script_path)
+{
+       if (!Glib::file_test (script_path, Glib::FILE_TEST_EXISTS | Glib::FILE_TEST_IS_REGULAR)) {
+               return;
+       }
+
+       LuaState lua;
+       lua.Print.connect (&_lua_print);
+       lua.sandbox (true);
+
+       lua_State* L = lua.getState();
+       LuaInstance::register_classes (L);
+       LuaBindings::set_session (L, _session);
+       luabridge::push <PublicEditor *> (L, &PublicEditor::instance());
+       lua_setglobal (L, "Editor");
+
+       lua.do_command ("function ardour () end");
+       lua.do_file (script_path);
+
+       try {
+               luabridge::LuaRef fn = luabridge::getGlobal (L, "factory");
+               if (fn.isFunction()) {
+                       fn ()();
+               }
+       } catch (luabridge::LuaException const& e) {
+               cerr << "LuaException:" << e.what () << endl;
+       } catch (...) {
+               display_insufficient_ports_message ();
+       }
+}
+
 void
 ARDOUR_UI::launch_chat ()
 {
@@ -3852,13 +3913,7 @@ ARDOUR_UI::launch_chat ()
 
        switch (dialog.run()) {
        case RESPONSE_OK:
-#ifdef __APPLE__
-               open_uri("http://webchat.freenode.net/?channels=ardour-osx");
-#elif defined PLATFORM_WINDOWS
-               open_uri("http://webchat.freenode.net/?channels=ardour-windows");
-#else
                open_uri("http://webchat.freenode.net/?channels=ardour");
-#endif
                break;
        default:
                break;
@@ -3954,8 +4009,8 @@ ARDOUR_UI::show_splash ()
 void
 ARDOUR_UI::hide_splash ()
 {
-        delete splash;
-        splash = 0;
+       delete splash;
+       splash = 0;
 }
 
 void
@@ -3967,12 +4022,12 @@ ARDOUR_UI::display_cleanup_results (ARDOUR::CleanupReport& rep, const gchar* lis
 
        if (removed == 0) {
                MessageDialog msgd (_main_window,
-                                   _("No files were ready for clean-up"),
-                                   true,
-                                   Gtk::MESSAGE_INFO,
-                                   Gtk::BUTTONS_OK);
+                                   _("No files were ready for clean-up"),
+                                   true,
+                                   Gtk::MESSAGE_INFO,
+                                   Gtk::BUTTONS_OK);
                msgd.set_title (_("Clean-up"));
-               msgd.set_secondary_text (_("If this seems suprising, \n\
+               msgd.set_secondary_text (_("If this seems surprising, \n\
 check for any existing snapshots.\n\
 These may still include regions that\n\
 require some unused files to continue to exist."));
@@ -3984,12 +4039,12 @@ require some unused files to continue to exist."));
        ArdourDialog results (_("Clean-up"), true, false);
 
        struct CleanupResultsModelColumns : public Gtk::TreeModel::ColumnRecord {
-           CleanupResultsModelColumns() {
-                   add (visible_name);
-                   add (fullpath);
-           }
-           Gtk::TreeModelColumn<std::string> visible_name;
-           Gtk::TreeModelColumn<std::string> fullpath;
+               CleanupResultsModelColumns() {
+                       add (visible_name);
+                       add (fullpath);
+               }
+               Gtk::TreeModelColumn<std::string> visible_name;
+               Gtk::TreeModelColumn<std::string> fullpath;
        };
 
 
@@ -4190,7 +4245,7 @@ ARDOUR_UI::cleanup_peakfiles ()
        RegionSelection rs;
        TrackViewList empty;
        empty.clear();
-       editor->get_regions_after(rs, (framepos_t) 0, empty);
+       editor->get_regions_after(rs, (samplepos_t) 0, empty);
        std::list<RegionView*> views = rs.by_layer();
 
        // remove displayed audio-region-views waveforms
@@ -4219,7 +4274,7 @@ PresentationInfo::order_t
 ARDOUR_UI::translate_order (RouteDialogs::InsertAt place)
 {
        if (editor->get_selection().tracks.empty()) {
-               return PresentationInfo::max_order;
+               return place == RouteDialogs::First ? 0 : PresentationInfo::max_order;
        }
 
        PresentationInfo::order_t order_hint = PresentationInfo::max_order;
@@ -4267,7 +4322,7 @@ void
 ARDOUR_UI::add_route ()
 {
        if (!add_route_dialog.get (false)) {
-               add_route_dialog->signal_response().connect (sigc::mem_fun (*this, &ARDOUR_UI::add_route_dialog_finished));
+               add_route_dialog->signal_response().connect (sigc::mem_fun (*this, &ARDOUR_UI::add_route_dialog_response));
        }
 
        if (!_session) {
@@ -4284,18 +4339,44 @@ ARDOUR_UI::add_route ()
 }
 
 void
-ARDOUR_UI::add_route_dialog_finished (int r)
+ARDOUR_UI::add_route_dialog_response (int r)
 {
-       int count;
+       if (!_session) {
+               warning << _("You cannot add tracks or busses without a session already loaded.") << endmsg;
+               return;
+       }
 
-       add_route_dialog->hide();
+       if (!AudioEngine::instance()->running ()) {
+               switch (r) {
+                       case AddRouteDialog::Add:
+                       case AddRouteDialog::AddAndClose:
+                               break;
+                       default:
+                               return;
+               }
+               add_route_dialog->ArdourDialog::on_response (r);
+               ARDOUR_UI_UTILS::engine_is_running ();
+               return;
+       }
+
+       int count;
 
        switch (r) {
-               case RESPONSE_ACCEPT:
-                       break;
-               default:
-                       return;
-                       break;
+       case AddRouteDialog::Add:
+               add_route_dialog->reset_name_edited ();
+               break;
+       case AddRouteDialog::AddAndClose:
+               add_route_dialog->ArdourDialog::on_response (r);
+               break;
+       default:
+               add_route_dialog->ArdourDialog::on_response (r);
+               return;
+       }
+
+       std::string template_path = add_route_dialog->get_template_path();
+       if (!template_path.empty() && template_path.substr (0, 11) == "urn:ardour:") {
+               meta_route_setup (template_path.substr (11));
+               return;
        }
 
        if ((count = add_route_dialog->count()) <= 0) {
@@ -4303,21 +4384,20 @@ ARDOUR_UI::add_route_dialog_finished (int r)
        }
 
        PresentationInfo::order_t order = translate_order (add_route_dialog->insert_at());
-       string template_path = add_route_dialog->track_template();
+       const string name_template = add_route_dialog->name_template ();
        DisplaySuspender ds;
 
-       if (!template_path.empty()) {
-               if (add_route_dialog->name_template_is_default())  {
-                       _session->new_route_from_template (count, order, template_path, string());
+       if (!template_path.empty ()) {
+               if (add_route_dialog->name_template_is_default ()) {
+                       _session->new_route_from_template (count, order, template_path, string ());
                } else {
-                       _session->new_route_from_template (count, order, template_path, add_route_dialog->name_template());
+                       _session->new_route_from_template (count, order, template_path, name_template);
                }
                return;
        }
 
        ChanCount input_chan= add_route_dialog->channels ();
        ChanCount output_chan;
-       string name_template = add_route_dialog->name_template ();
        PluginInfoPtr instrument = add_route_dialog->requested_instrument ();
        RouteGroup* route_group = add_route_dialog->route_group ();
        AutoConnectOption oac = Config->get_output_auto_connect();
@@ -4336,22 +4416,25 @@ ARDOUR_UI::add_route_dialog_finished (int r)
 
        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, strict_io, order);
+               session_add_audio_route (true, input_chan.n_audio(), output_chan.n_audio(), add_route_dialog->mode(), route_group, count, name_template, strict_io, order);
                break;
        case AddRouteDialog::MidiTrack:
-               session_add_midi_track (route_group, count, name_template, strict_io, instrument, 0, order);
+               session_add_midi_route (true, route_group, count, name_template, strict_io, instrument, 0, order);
                break;
        case AddRouteDialog::MixedTrack:
                session_add_mixed_track (input_chan, output_chan, route_group, count, name_template, strict_io, instrument, 0, order);
                break;
        case AddRouteDialog::AudioBus:
-               session_add_audio_bus (input_chan.n_audio(), output_chan.n_audio(), route_group, count, name_template, strict_io, order);
+               session_add_audio_route (false, input_chan.n_audio(), output_chan.n_audio(), ARDOUR::Normal, route_group, count, name_template, strict_io, order);
                break;
        case AddRouteDialog::MidiBus:
                session_add_midi_bus (route_group, count, name_template, strict_io, instrument, 0, order);
                break;
        case AddRouteDialog::VCAMaster:
-               session_add_vca (name_template, count);
+               _session->vca_manager().create_vca (count, name_template);
+               break;
+       case AddRouteDialog::FoldbackBus:
+               session_add_foldback_bus (count, name_template);
                break;
        }
 }
@@ -4627,10 +4710,10 @@ ARDOUR_UI::add_video (Gtk::Window* float_window)
                                LTCFileReader ltcr (audio_from_video, video_timeline->get_video_file_fps());
                                /* TODO ASK user which channel:  0 .. ltcr->channels() - 1 */
 
-                               ltc_seq = ltcr.read_ltc (/*channel*/ 0, /*max LTC frames to decode*/ 15);
+                               ltc_seq = ltcr.read_ltc (/*channel*/ 0, /*max LTC samples to decode*/ 15);
 
                                /* TODO seek near end of file, and read LTC until end.
-                                * if it fails to find any LTC frames, scan complete file
+                                * if it fails to find any LTC samples, scan complete file
                                 *
                                 * calculate drift of LTC compared to video-duration,
                                 * ask user for reference (timecode from start/mid/end)
@@ -4646,16 +4729,16 @@ ARDOUR_UI::add_video (Gtk::Window* float_window)
                        } else {
                                /* the very first TC in the file is somteimes not aligned properly */
                                int i = ltc_seq.size() -1;
-                               ARDOUR::frameoffset_t video_start_offset =
-                                       _session->nominal_frame_rate() * (ltc_seq[i].timecode_sec - ltc_seq[i].framepos_sec);
+                               ARDOUR::sampleoffset_t video_start_offset =
+                                       _session->nominal_sample_rate() * (ltc_seq[i].timecode_sec - ltc_seq[i].framepos_sec);
                                PBD::info << string_compose (_("Align video-start to %1 [samples]"), video_start_offset) << endmsg;
                                video_timeline->set_offset(video_start_offset);
                        }
                }
 
                _session->maybe_update_session_range(
-                       std::max(video_timeline->get_offset(), (ARDOUR::frameoffset_t) 0),
-                       std::max(video_timeline->get_offset() + video_timeline->get_duration(), (ARDOUR::frameoffset_t) 0));
+                       std::max(video_timeline->get_offset(), (ARDOUR::sampleoffset_t) 0),
+                       std::max(video_timeline->get_offset() + video_timeline->get_duration(), (ARDOUR::sampleoffset_t) 0));
 
 
                if (add_video_dialog->launch_xjadeo() && local_file) {
@@ -4821,7 +4904,7 @@ ARDOUR_UI::keyboard_settings () const
 }
 
 void
-ARDOUR_UI::create_xrun_marker (framepos_t where)
+ARDOUR_UI::create_xrun_marker (samplepos_t where)
 {
        if (_session) {
                Location *location = new Location (*_session, where, where, _("xrun"), Location::IsMark, 0);
@@ -4832,13 +4915,13 @@ ARDOUR_UI::create_xrun_marker (framepos_t where)
 void
 ARDOUR_UI::halt_on_xrun_message ()
 {
-        cerr << "HALT on xrun\n";
-        MessageDialog msg (_main_window, _("Recording was stopped because your system could not keep up."));
+       cerr << "HALT on xrun\n";
+       MessageDialog msg (_main_window, _("Recording was stopped because your system could not keep up."));
        msg.run ();
 }
 
 void
-ARDOUR_UI::xrun_handler (framepos_t where)
+ARDOUR_UI::xrun_handler (samplepos_t where)
 {
        if (!_session) {
                return;
@@ -5062,7 +5145,7 @@ what you would like to do.\n"), PROGRAM_NAME));
 }
 
 int
-ARDOUR_UI::sr_mismatch_dialog (framecnt_t desired, framecnt_t actual)
+ARDOUR_UI::sr_mismatch_dialog (samplecnt_t desired, samplecnt_t actual)
 {
        HBox* hbox = new HBox();
        Image* image = new Image (Stock::DIALOG_WARNING, ICON_SIZE_DIALOG);
@@ -5088,14 +5171,14 @@ audio may be played at the wrong sample rate.\n"), desired, PROGRAM_NAME, actual
        case RESPONSE_ACCEPT:
                return 0;
        default:
-                break;
+               break;
        }
 
-        return 1;
+       return 1;
 }
 
 void
-ARDOUR_UI::sr_mismatch_message (framecnt_t desired, framecnt_t actual)
+ARDOUR_UI::sr_mismatch_message (samplecnt_t desired, samplecnt_t actual)
 {
        MessageDialog msg (string_compose (_("\
 This session was created with a sample rate of %1 Hz, but\n\
@@ -5119,18 +5202,36 @@ ARDOUR_UI::use_config ()
 }
 
 void
-ARDOUR_UI::update_transport_clocks (framepos_t pos)
+ARDOUR_UI::update_transport_clocks (samplepos_t pos)
 {
-       if (UIConfiguration::instance().get_primary_clock_delta_edit_cursor()) {
-               primary_clock->set (pos, false, editor->get_preferred_edit_position (EDIT_IGNORE_PHEAD));
-       } else {
-               primary_clock->set (pos);
+       switch (UIConfiguration::instance().get_primary_clock_delta_mode()) {
+               case NoDelta:
+                       primary_clock->set (pos);
+                       break;
+               case DeltaEditPoint:
+                       primary_clock->set (pos, false, editor->get_preferred_edit_position (EDIT_IGNORE_PHEAD));
+                       break;
+               case DeltaOriginMarker:
+                       {
+                               Location* loc = _session->locations()->clock_origin_location ();
+                               primary_clock->set (pos, false, loc ? loc->start() : 0);
+                       }
+                       break;
        }
 
-       if (UIConfiguration::instance().get_secondary_clock_delta_edit_cursor()) {
-               secondary_clock->set (pos, false, editor->get_preferred_edit_position (EDIT_IGNORE_PHEAD));
-       } else {
-               secondary_clock->set (pos);
+       switch (UIConfiguration::instance().get_secondary_clock_delta_mode()) {
+               case NoDelta:
+                       secondary_clock->set (pos);
+                       break;
+               case DeltaEditPoint:
+                       secondary_clock->set (pos, false, editor->get_preferred_edit_position (EDIT_IGNORE_PHEAD));
+                       break;
+               case DeltaOriginMarker:
+                       {
+                               Location* loc = _session->locations()->clock_origin_location ();
+                               secondary_clock->set (pos, false, loc ? loc->start() : 0);
+                       }
+                       break;
        }
 
        if (big_clock_window) {
@@ -5139,20 +5240,6 @@ ARDOUR_UI::update_transport_clocks (framepos_t pos)
        ARDOUR_UI::instance()->video_timeline->manual_seek_video_monitor(pos);
 }
 
-void
-ARDOUR_UI::step_edit_status_change (bool yn)
-{
-       // XXX should really store pre-step edit status of things
-       // we make insensitive
-
-       if (yn) {
-               rec_button.set_active_state (Gtkmm2ext::ImplicitActive);
-               rec_button.set_sensitive (false);
-       } else {
-               rec_button.unset_active_state ();;
-               rec_button.set_sensitive (true);
-       }
-}
 
 void
 ARDOUR_UI::record_state_changed ()
@@ -5187,6 +5274,15 @@ ARDOUR_UI::first_idle ()
                editor->first_idle();
        }
 
+       /* in 1 second, hide the splash screen
+        *
+        * Consider hiding it *now*. If a user opens opens a dialog
+        * during that one second while the splash is still visible,
+        * the dialog will push-back the splash.
+        * Closing the dialog later will pop it back.
+        */
+       Glib::signal_timeout().connect (sigc::bind (sigc::ptr_fun (_hide_splash), this), 1000);
+
        Keyboard::set_can_save_keybindings (true);
        return false;
 }
@@ -5210,86 +5306,6 @@ ARDOUR_UI::store_clock_modes ()
        _session->set_dirty ();
 }
 
-ARDOUR_UI::TransportControllable::TransportControllable (std::string name, ARDOUR_UI& u, ToggleType tp)
-       : Controllable (name), ui (u), type(tp)
-{
-
-}
-
-void
-ARDOUR_UI::TransportControllable::set_value (double val, PBD::Controllable::GroupControlDisposition /*group_override*/)
-{
-       if (val < 0.5) {
-               /* do nothing: these are radio-style actions */
-               return;
-       }
-
-       const char *action = 0;
-
-       switch (type) {
-       case Roll:
-               action = X_("Roll");
-               break;
-       case Stop:
-               action = X_("Stop");
-               break;
-       case GotoStart:
-               action = X_("GotoStart");
-               break;
-       case GotoEnd:
-               action = X_("GotoEnd");
-               break;
-       case AutoLoop:
-               action = X_("Loop");
-               break;
-       case PlaySelection:
-               action = X_("PlaySelection");
-               break;
-       case RecordEnable:
-               action = X_("Record");
-               break;
-       default:
-               break;
-       }
-
-       if (action == 0) {
-               return;
-       }
-
-       Glib::RefPtr<Action> act = ActionManager::get_action ("Transport", action);
-
-       if (act) {
-               act->activate ();
-       }
-}
-
-double
-ARDOUR_UI::TransportControllable::get_value (void) const
-{
-       float val = 0.0;
-
-       switch (type) {
-       case Roll:
-               break;
-       case Stop:
-               break;
-       case GotoStart:
-               break;
-       case GotoEnd:
-               break;
-       case AutoLoop:
-               break;
-       case PlaySelection:
-               break;
-       case RecordEnable:
-               break;
-       default:
-               break;
-       }
-
-       return val;
-}
-
 void
 ARDOUR_UI::setup_profile ()
 {
@@ -5385,11 +5401,11 @@ ARDOUR_UI::session_format_mismatch (std::string xml_path, std::string backup_pat
        const char* end_mono = "</tt>";
 
        MessageDialog msg (string_compose (_("%4This is a session from an older version of %3%5\n\n"
-                                            "%3 has copied the old session file\n\n%6%1%7\n\nto\n\n%6%2%7\n\n"
-                                            "From now on, use the backup copy with older versions of %3"),
-                                          xml_path, backup_path, PROGRAM_NAME,
-                                          start_big, end_big,
-                                          start_mono, end_mono), true);
+                                            "%3 has copied the old session file\n\n%6%1%7\n\nto\n\n%6%2%7\n\n"
+                                            "From now on, use the backup copy with older versions of %3"),
+                                          xml_path, backup_path, PROGRAM_NAME,
+                                          start_big, end_big,
+                                          start_mono, end_mono), true);
 
        msg.run ();
 }
@@ -5617,7 +5633,7 @@ ARDOUR_UI::audioengine_became_silent ()
 void
 ARDOUR_UI::hide_application ()
 {
-    Application::instance ()-> hide ();
+       Application::instance ()-> hide ();
 }
 
 void
@@ -5743,7 +5759,7 @@ ARDOUR_UI::key_press_focus_accelerator_handler (Gtk::Window& window, GdkEventKey
        bool special_handling_of_unmodified_accelerators = false;
        const guint mask = (Keyboard::RelevantModifierKeyMask & ~(Gdk::SHIFT_MASK|Gdk::LOCK_MASK));
 
-        if (focus) {
+       if (focus) {
 
                /* some widget has keyboard focus */
 
@@ -5766,13 +5782,13 @@ ARDOUR_UI::key_press_focus_accelerator_handler (Gtk::Window& window, GdkEventKey
                }
        }
 
-        DEBUG_TRACE (DEBUG::Accelerators, string_compose ("Win = %1 [title = %9] focus = %7 (%8) Key event: code = %2  state = %3 special handling ? %4 magic widget focus ? %5 focus widget %6 named %7 mods ? %8\n",
-                                                          win,
-                                                          ev->keyval,
-                                                         Gtkmm2ext::show_gdk_event_state (ev->state),
+       DEBUG_TRACE (DEBUG::Accelerators, string_compose ("Win = %1 [title = %9] focus = %7 (%8) Key event: code = %2  state = %3 special handling ? %4 magic widget focus ? %5 focus widget %6 named %7 mods ? %8\n",
+                                                         win,
+                                                         ev->keyval,
+                                                         Gtkmm2ext::show_gdk_event_state (ev->state),
                                                           special_handling_of_unmodified_accelerators,
                                                           Keyboard::some_magic_widget_has_focus(),
-                                                         focus,
+                                                         focus,
                                                           (focus ? gtk_widget_get_name (focus) : "no focus widget"),
                                                           ((ev->state & mask) ? "yes" : "no"),
                                                           window.get_title()));
@@ -5813,7 +5829,7 @@ ARDOUR_UI::key_press_focus_accelerator_handler (Gtk::Window& window, GdkEventKey
 
                /* no special handling or there are modifiers in effect: accelerate first */
 
-                DEBUG_TRACE (DEBUG::Accelerators, "\tactivate, then propagate\n");
+               DEBUG_TRACE (DEBUG::Accelerators, "\tactivate, then propagate\n");
                DEBUG_TRACE (DEBUG::Accelerators, string_compose ("\tevent send-event:%1 time:%2 length:%3 name %7 string:%4 hardware_keycode:%5 group:%6\n",
                                                                  ev->send_event, ev->time, ev->length, ev->string, ev->hardware_keycode, ev->group, gdk_keyval_name (ev->keyval)));
 
@@ -5848,12 +5864,12 @@ ARDOUR_UI::key_press_focus_accelerator_handler (Gtk::Window& window, GdkEventKey
                        return true;
                }
 
-                DEBUG_TRACE (DEBUG::Accelerators, "\tnot accelerated, now propagate\n");
+               DEBUG_TRACE (DEBUG::Accelerators, "\tnot accelerated, now propagate\n");
 
-                if (gtk_window_propagate_key_event (win, ev)) {
-                       DEBUG_TRACE (DEBUG::Accelerators, "\tpropagate handled\n");
-                       return true;
-                }
+               if (gtk_window_propagate_key_event (win, ev)) {
+                       DEBUG_TRACE (DEBUG::Accelerators, "\tpropagate handled\n");
+                       return true;
+               }
 
        } else {
 
@@ -5970,3 +5986,45 @@ ARDOUR_UI::reset_focus (Gtk::Widget* w)
        gtk_window_set_focus (GTK_WINDOW(top->gobj()), 0);
 
 }
+
+void
+ARDOUR_UI::monitor_dim_all ()
+{
+       boost::shared_ptr<Route> mon = _session->monitor_out ();
+       if (!mon) {
+               return;
+       }
+       boost::shared_ptr<ARDOUR::MonitorProcessor> _monitor = mon->monitor_control ();
+
+       Glib::RefPtr<Action> act = global_actions.find_action (X_("Monitor"), "monitor-dim-all");
+       assert (act);  Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
+       assert (tact); _monitor->set_dim_all (tact->get_active());
+}
+
+void
+ARDOUR_UI::monitor_cut_all ()
+{
+       boost::shared_ptr<Route> mon = _session->monitor_out ();
+       if (!mon) {
+               return;
+       }
+       boost::shared_ptr<ARDOUR::MonitorProcessor> _monitor = mon->monitor_control ();
+
+       Glib::RefPtr<Action> act = global_actions.find_action (X_("Monitor"), "monitor-cut-all");
+       assert (act);  Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
+       assert (tact); _monitor->set_cut_all (tact->get_active());
+}
+
+void
+ARDOUR_UI::monitor_mono ()
+{
+       boost::shared_ptr<Route> mon = _session->monitor_out ();
+       if (!mon) {
+               return;
+       }
+       boost::shared_ptr<ARDOUR::MonitorProcessor> _monitor = mon->monitor_control ();
+
+       Glib::RefPtr<Action> act = global_actions.find_action (X_("Monitor"), "monitor-mono");
+       assert (act);  Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
+       assert (tact);_monitor->set_mono (tact->get_active());
+}