show() widgets explicitly in gtk2_ardour/analysis_window.cc
[ardour.git] / gtk2_ardour / ardour_ui.cc
index f233c972f291a95c965eaf28f8593d68842f9b3f..7359b4908170c73b47f1fc07d360e348d8e0d434 100644 (file)
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
+#define __STDC_FORMAT_MACROS 1
+#include <stdint.h>
+
 #include <algorithm>
 #include <cmath>
 #include <fcntl.h>
 
 #include <pbd/error.h>
 #include <pbd/compose.h>
-#include <pbd/pathscanner.h>
 #include <pbd/failed_constructor.h>
 #include <pbd/enumwriter.h>
-#include <pbd/stacktrace.h>
+#include <pbd/memento_command.h>
+#include <pbd/file_utils.h>
+
 #include <gtkmm2ext/gtk_ui.h>
 #include <gtkmm2ext/utils.h>
 #include <gtkmm2ext/click_box.h>
 #include <gtkmm2ext/fastmeter.h>
 #include <gtkmm2ext/stop_signal.h>
 #include <gtkmm2ext/popup.h>
+#include <gtkmm2ext/window_title.h>
 
 #include <midi++/port.h>
 #include <midi++/mmc.h>
 
 #include <ardour/ardour.h>
+#include <ardour/profile.h>
+#include <ardour/session_directory.h>
 #include <ardour/session_route.h>
+#include <ardour/session_utils.h>
 #include <ardour/port.h>
 #include <ardour/audioengine.h>
 #include <ardour/playlist.h>
@@ -60,6 +67,8 @@
 #include <ardour/recent_sessions.h>
 #include <ardour/port.h>
 #include <ardour/audio_track.h>
+#include <ardour/midi_track.h>
+#include <ardour/filesystem_paths.h>
 
 #include "actions.h"
 #include "ardour_ui.h"
@@ -74,7 +83,8 @@
 #include "about.h"
 #include "utils.h"
 #include "gui_thread.h"
-#include "color_manager.h"
+#include "theme_manager.h"
+
 
 #include "i18n.h"
 
@@ -85,16 +95,16 @@ using namespace Gtk;
 using namespace sigc;
 
 ARDOUR_UI *ARDOUR_UI::theArdourUI = 0;
+UIConfiguration *ARDOUR_UI::ui_config = 0;
 
 sigc::signal<void,bool> ARDOUR_UI::Blink;
 sigc::signal<void>      ARDOUR_UI::RapidScreenUpdate;
-sigc::signal<void>      ARDOUR_UI::MidRapidScreenUpdate;
 sigc::signal<void>      ARDOUR_UI::SuperRapidScreenUpdate;
-sigc::signal<void,nframes_t> ARDOUR_UI::Clock;
+sigc::signal<void,nframes_t, bool, nframes_t> ARDOUR_UI::Clock;
 
-ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], string rcfile)
+ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
 
-       : Gtkmm2ext::UI ("ardour", argcp, argvp, rcfile),
+       : Gtkmm2ext::UI (X_("Ardour"), argcp, argvp),
          
          primary_clock (X_("primary"), false, X_("TransportClockDisplay"), true, false, true),
          secondary_clock (X_("secondary"), false, X_("SecondaryClockDisplay"), true, false, true),
@@ -158,14 +168,9 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], string rcfile)
                theArdourUI = this;
        }
 
-       /* load colors */
-
-       color_manager = new ColorManager();
-
-       std::string color_file = ARDOUR::find_config_file("ardour.colors");
-
-       color_manager->load (color_file);
-
+       ui_config = new UIConfiguration();
+       theme_manager = new ThemeManager();
+       
        editor = 0;
        mixer = 0;
        session = 0;
@@ -180,15 +185,19 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], string rcfile)
        location_ui = 0;
        open_session_selector = 0;
        have_configure_timeout = false;
-       have_disk_overrun_displayed = false;
-       have_disk_underrun_displayed = false;
-       _will_create_new_session_automatically = false;
+       have_disk_speed_dialog_displayed = false;
        session_loaded = false;
        last_speed_displayed = -1.0f;
-       keybindings_path = ARDOUR::find_config_file ("ardour.bindings");
+       ab_direction = true;
+
+       sys::path key_bindings_file;
+
+       find_file_in_search_path (ardour_search_path() + system_config_search_path(),
+                       "ardour.bindings", key_bindings_file);
+
+       keybindings_path = key_bindings_file.to_string();
 
        can_save_keybindings = false;
-       Glib::signal_idle().connect (mem_fun (*this, &ARDOUR_UI::first_idle));
 
        last_configure_time.tv_sec = 0;
        last_configure_time.tv_usec = 0;
@@ -223,7 +232,7 @@ ARDOUR_UI::set_engine (AudioEngine& e)
        engine->Halted.connect (mem_fun(*this, &ARDOUR_UI::engine_halted));
        engine->SampleRateChanged.connect (mem_fun(*this, &ARDOUR_UI::update_sample_rate));
 
-               ActionManager::init ();
+       ActionManager::init ();
        new_session_dialog = new NewSessionDialog();
 
        _tooltips.enable();
@@ -265,10 +274,6 @@ ARDOUR_UI::set_engine (AudioEngine& e)
        AudioFileSource::set_build_peakfiles (true);
        AudioFileSource::set_build_missing_peakfiles (true);
 
-       if (AudioSource::start_peak_thread ()) {
-               throw failed_constructor();
-       }
-
        /* set default clock modes */
 
        primary_clock.set_mode (AudioClock::SMPTE);
@@ -306,8 +311,6 @@ ARDOUR_UI::~ARDOUR_UI ()
        if (add_route_dialog) {
                delete add_route_dialog;
        }
-
-       AudioSource::stop_peak_thread ();
 }
 
 gint
@@ -426,40 +429,118 @@ ARDOUR_UI::save_ardour_state ()
        XMLNode mnode(mixer->get_state());
 
        if (session) {
-               session->add_instant_xml (enode, session->path());
-               session->add_instant_xml (mnode, session->path());
+               session->add_instant_xml (enode);
+               session->add_instant_xml (mnode);
        } else {
-               Config->add_instant_xml (enode, get_user_ardour_path());
-               Config->add_instant_xml (mnode, get_user_ardour_path());
+               Config->add_instant_xml (enode);
+               Config->add_instant_xml (mnode);
        }
 
        save_keybindings ();
 }
 
+gint
+ARDOUR_UI::autosave_session ()
+{
+       if (!Config->get_periodic_safety_backups())
+               return 1;
+
+       if (session) {
+               session->maybe_write_autosave();
+       }
+
+       return 1;
+}
+
+void
+ARDOUR_UI::update_autosave ()
+{
+       ENSURE_GUI_THREAD (mem_fun (*this, &ARDOUR_UI::update_autosave));
+
+       if (session->dirty()) {
+               if (_autosave_connection.connected()) {
+                       _autosave_connection.disconnect();
+               }
+
+               _autosave_connection = Glib::signal_timeout().connect (mem_fun (*this, &ARDOUR_UI::autosave_session),
+                               Config->get_periodic_safety_backup_interval() * 1000);
+
+       } else {
+               if (_autosave_connection.connected()) {
+                       _autosave_connection.disconnect();
+               }               
+       }
+}
+
 void
 ARDOUR_UI::startup ()
 {
-       if (engine->is_realtime()) {
+       check_memory_locking();
+}
+
+void
+ARDOUR_UI::no_memory_warning ()
+{
+       XMLNode node (X_("no-memory-warning"));
+       Config->add_instant_xml (node);
+}
+
+void
+ARDOUR_UI::check_memory_locking ()
+{
+#ifdef __APPLE__
+       /* OS X doesn't support mlockall(2), and so testing for memory locking capability there is pointless */
+       return;
+#else // !__APPLE__
+
+       XMLNode* memory_warning_node = Config->instant_xml (X_("no-memory-warning"));
+
+       if (engine->is_realtime() && memory_warning_node == 0) {
 
                struct rlimit limits;
-               
+               int64_t ram;
+               long pages, page_size;
+
+               if ((page_size = sysconf (_SC_PAGESIZE)) < 0 ||(pages = sysconf (_SC_PHYS_PAGES)) < 0) {
+                       ram = 0;
+               } else {
+                       ram = (int64_t) pages * (int64_t) page_size;
+               }
+
                if (getrlimit (RLIMIT_MEMLOCK, &limits)) {
                        return;
                }
                
                if (limits.rlim_cur != RLIM_INFINITY) {
-                       MessageDialog msg (_("WARNING: Your system has a limit for maximum amount of locked memory. "
-                                            "This might cause Ardour to run out of memory before your system "
-                                            "runs out of memory. \n\n"
-                                            "You can view the memory limit with 'ulimit -l', "
-                                            "and it is normally controlled by /etc/security/limits.conf"));
+
+                       if (ram == 0 || ((double) limits.rlim_cur / ram) < 0.75) {
                        
-                       editor->ensure_float (msg);
-                       msg.run ();
+
+                               MessageDialog msg (_("WARNING: Your system has a limit for maximum amount of locked memory. "
+                                                    "This might cause Ardour to run out of memory before your system "
+                                                    "runs out of memory. \n\n"
+                                                    "You can view the memory limit with 'ulimit -l', "
+                                                    "and it is normally controlled by /etc/security/limits.conf"));
+                               
+                               VBox* vbox = msg.get_vbox();
+                               HBox hbox;
+                               CheckButton cb (_("Do not show this window again"));
+                               
+                               cb.signal_toggled().connect (mem_fun (*this, &ARDOUR_UI::no_memory_warning));
+                               
+                               hbox.pack_start (cb, true, false);
+                               vbox->pack_start (hbox);
+                               hbox.show_all ();
+                               
+                               editor->ensure_float (msg);
+                               msg.run ();
+                       }
                }
        }
+#endif // !__APPLE__
 }
 
+
 void
 ARDOUR_UI::finish()
 {
@@ -491,6 +572,7 @@ If you still wish to quit, please use the\n\n\
        }
        engine->stop (true);
        Config->save_state();
+       ARDOUR_UI::config()->save_state();
        quit ();
 }
 
@@ -582,13 +664,6 @@ ARDOUR_UI::every_point_one_seconds ()
        return TRUE;
 }
 
-gint
-ARDOUR_UI::every_point_oh_five_seconds ()
-{
-       MidRapidScreenUpdate(); /* EMIT_SIGNAL */
-       return true;
-}
-
 gint
 ARDOUR_UI::every_point_zero_one_seconds ()
 {
@@ -612,11 +687,11 @@ ARDOUR_UI::update_sample_rate (nframes_t ignored)
                nframes_t rate = engine->frame_rate();
                
                if (fmod (rate, 1000.0) != 0.0) {
-                       snprintf (buf, sizeof (buf), _("%.1f kHz / %4.1f msecs"), 
+                       snprintf (buf, sizeof (buf), _("%.1f kHz / %4.1f ms"), 
                                  (float) rate/1000.0f,
                                  (engine->frames_per_cycle() / (float) rate) * 1000.0f);
                } else {
-                       snprintf (buf, sizeof (buf), _("%u kHz / %4.1f msecs"), 
+                       snprintf (buf, sizeof (buf), _("%u kHz / %4.1f ms"), 
                                  rate/1000,
                                  (engine->frames_per_cycle() / (float) rate) * 1000.0f);
                }
@@ -629,7 +704,7 @@ void
 ARDOUR_UI::update_cpu_load ()
 {
        char buf[32];
-       snprintf (buf, sizeof (buf), _("DSP: %.1f%%"), engine->get_cpu_load());
+       snprintf (buf, sizeof (buf), _("DSP: %5.1f%%"), engine->get_cpu_load());
        cpu_load_label.set_text (buf);
 }
 
@@ -652,7 +727,7 @@ ARDOUR_UI::count_recenabled_streams (Route& route)
 {
        Track* track = dynamic_cast<Track*>(&route);
        if (track && track->diskstream()->record_enabled()) {
-               rec_enabled_streams += track->n_inputs();
+               rec_enabled_streams += track->n_inputs().n_total();
        }
 }
 
@@ -708,40 +783,6 @@ ARDOUR_UI::update_wall_clock ()
 
        return TRUE;
 }
-void
-ARDOUR_UI::control_methods_adjusted ()
-
-{
-       int which_method;
-
-       which_method = (int) online_control_button->adjustment.get_value();
-       switch (which_method) {
-       case 0:
-               allow_mmc_and_local ();
-               break;
-       case 1:
-               allow_mmc_only ();
-               break;
-       case 2:
-               allow_local_only ();
-               break;
-       default:
-               fatal << _("programming error: impossible control method") << endmsg;
-       }
-}
-       
-
-void
-ARDOUR_UI::mmc_device_id_adjusted ()
-
-{
-#if 0
-       if (mmc) {
-               int dev_id = (int) mmc_id_button->adjustment.get_value();
-               mmc->set_device_id (dev_id);
-       }
-#endif
-}
 
 gint
 ARDOUR_UI::session_menu (GdkEventButton *ev)
@@ -918,9 +959,30 @@ ARDOUR_UI::filter_ardour_session_dirs (const FileFilter::Info& info)
        return S_ISREG (statbuf.st_mode);
 }
 
+bool
+ARDOUR_UI::check_audioengine ()
+{
+       if (engine) {
+               if (!engine->connected()) {
+                       MessageDialog msg (_("Ardour is not connected to JACK\n"
+                                            "You cannot open or close sessions in this condition"));
+                       msg.run ();
+                       return false;
+               }
+               return true;
+       } else {
+               return false;
+       }
+}
+
 void
 ARDOUR_UI::open_session ()
 {
+       if (!check_audioengine()) {
+               return;
+               
+       }
+
        /* popup selector window */
 
        if (open_session_selector == 0) {
@@ -955,7 +1017,7 @@ ARDOUR_UI::open_session ()
        bool isnew;
 
        if (session_path.length() > 0) {
-               if (Session::find_session (session_path, path, name, isnew) == 0) {
+               if (ARDOUR::find_session (session_path, path, name, isnew) == 0) {
                        _session_is_new = isnew;
                        load_session (path, name);
                }
@@ -964,11 +1026,45 @@ ARDOUR_UI::open_session ()
 
 
 void
-ARDOUR_UI::session_add_midi_track ()
+ARDOUR_UI::session_add_midi_route (bool disk, uint32_t how_many)
 {
-       cerr << _("Patience is a virtue.\n");
+       list<boost::shared_ptr<MidiTrack> > tracks;
+
+       if (session == 0) {
+               warning << _("You cannot add a track without a session already loaded.") << endmsg;
+               return;
+       }
+
+       try { 
+               if (disk) {
+
+                       tracks = session->new_midi_track (ARDOUR::Normal, how_many);
+
+                       if (tracks.size() != how_many) {
+                               if (how_many == 1) {
+                                       error << _("could not create a new midi track") << endmsg;
+                               } else {
+                                       error << string_compose (_("could not create %1 new midi tracks"), how_many) << endmsg;
+                               }
+                       }
+               } /*else {
+                       if ((route = session->new_midi_route ()) == 0) {
+                               error << _("could not create new midi bus") << endmsg;
+                       }
+               }*/
+       }
+
+       catch (...) {
+               MessageDialog msg (*editor, 
+                                  _("There are insufficient JACK ports available\n\
+to create a new track or bus.\n\
+You should save Ardour, exit and\n\
+restart JACK with more ports."));
+               msg.run ();
+       }
 }
 
+
 void
 ARDOUR_UI::session_add_audio_route (bool track, int32_t input_channels, int32_t output_channels, ARDOUR::TrackMode mode, uint32_t how_many)
 {
@@ -988,7 +1084,8 @@ ARDOUR_UI::session_add_audio_route (bool track, int32_t input_channels, int32_t
                                if (how_many == 1) {
                                        error << _("could not create a new audio track") << endmsg;
                                } else {
-                                       error << string_compose (_("could not create %1 new audio tracks"), how_many) << endmsg;
+                                       error << string_compose (_("could only create %1 of %2 new audio %3"), 
+                                                                tracks.size(), how_many, (track ? _("tracks") : _("busses"))) << endmsg;
                                }
                        }
 
@@ -1019,6 +1116,7 @@ ARDOUR_UI::session_add_audio_route (bool track, int32_t input_channels, int32_t
        }
 
        catch (...) {
+               cerr << "About to complain about JACK\n";
                MessageDialog msg (*editor, 
                                   _("There are insufficient JACK ports available\n\
 to create a new track or bus.\n\
@@ -1136,8 +1234,6 @@ ARDOUR_UI::remove_last_capture()
 void
 ARDOUR_UI::transport_record ()
 {
-       cerr << "transport record\n";
-
        if (session) {
                switch (session->record_status()) {
                case Session::Disabled:
@@ -1150,7 +1246,7 @@ ARDOUR_UI::transport_record ()
                        break;
                case Session::Recording:
                case Session::Enabled:
-                       session->disable_record (true);
+                       session->disable_record (false, true);
                }
        }
 }
@@ -1310,24 +1406,6 @@ ARDOUR_UI::map_transport_state ()
        }
 }
 
-void
-ARDOUR_UI::allow_local_only ()
-{
-
-}
-
-void
-ARDOUR_UI::allow_mmc_only ()
-{
-
-}
-
-void
-ARDOUR_UI::allow_mmc_and_local ()
-{
-
-}
-
 void
 ARDOUR_UI::GlobalClickBox::printer (char buf[32], Adjustment &adj, void *arg)
 {
@@ -1431,6 +1509,12 @@ ARDOUR_UI::do_engine_start ()
        return 0;
 }
 
+void
+ARDOUR_UI::setup_theme ()
+{
+       theme_manager->setup_theme();
+}
+
 gint
 ARDOUR_UI::start_engine ()
 {
@@ -1450,7 +1534,7 @@ void
 ARDOUR_UI::update_clocks ()
 {
        if (!editor || !editor->dragging_playhead()) {
-               Clock (session->audible_frame()); /* EMIT_SIGNAL */
+               Clock (session->audible_frame(), false, editor->edit_cursor_position(false)); /* EMIT_SIGNAL */
        }
 }
 
@@ -1489,7 +1573,7 @@ ARDOUR_UI::_blink (void *arg)
 void
 ARDOUR_UI::blink ()
 {
-       // Blink (blink_on = !blink_on); /* EMIT_SIGNAL */
+       Blink (blink_on = !blink_on); /* EMIT_SIGNAL */
 }
 
 void
@@ -1521,7 +1605,7 @@ ARDOUR_UI::name_io_setup (AudioEngine& engine,
                          bool in)
 {
        if (in) {
-               if (io.n_inputs() == 0) {
+               if (io.n_inputs().n_total() == 0) {
                        buf = _("none");
                        return;
                }
@@ -1540,7 +1624,7 @@ ARDOUR_UI::name_io_setup (AudioEngine& engine,
 
        } else {
 
-               if (io.n_outputs() == 0) {
+               if (io.n_outputs().n_total() == 0) {
                        buf = _("none");
                        return;
                }
@@ -1559,6 +1643,8 @@ ARDOUR_UI::name_io_setup (AudioEngine& engine,
        }
 }
 
+/** Ask the user for the name of a new shapshot and then take it.
+ */
 void
 ARDOUR_UI::snapshot_session ()
 {
@@ -1682,14 +1768,14 @@ ARDOUR_UI::transport_rec_enable_blink (bool onoff)
        switch (session->record_status()) {
        case Session::Enabled:
                if (onoff) {
-                       rec_button.set_visual_state (1);
+                       rec_button.set_visual_state (2);
                } else {
                        rec_button.set_visual_state (0);
                }
                break;
 
        case Session::Recording:
-               rec_button.set_visual_state (2);
+               rec_button.set_visual_state (1);
                break;
 
        default:
@@ -1732,22 +1818,32 @@ ARDOUR_UI::save_template ()
        }
 }
 
-void
+bool
 ARDOUR_UI::new_session (std::string predetermined_path)
 {
        string session_name;
        string session_path;
 
+       if (!check_audioengine()) {
+               return false;
+       }
+
        int response = Gtk::RESPONSE_NONE;
 
        new_session_dialog->set_modal(true);
        new_session_dialog->set_name (predetermined_path);
        new_session_dialog->reset_recent();
        new_session_dialog->show();
+       new_session_dialog->set_current_page (0);
 
        do {
-               response = new_session_dialog->run ();
-               
+               response = new_session_dialog->run ();
+
+               if (!check_audioengine()) {
+                       new_session_dialog->hide ();
+                       return false;
+               }
+
                _session_is_new = false;
 
                if (response == Gtk::RESPONSE_CANCEL || response == Gtk::RESPONSE_DELETE_EVENT) {
@@ -1756,59 +1852,59 @@ ARDOUR_UI::new_session (std::string predetermined_path)
                                quit();
                        }
                        new_session_dialog->hide ();
-                       return;
+                       return false;
 
                } else if (response == Gtk::RESPONSE_NONE) {
 
-                       /* Clear was pressed */
-                       new_session_dialog->reset();
+                       /* Clear was pressed */
+                       new_session_dialog->reset();
 
                } else if (response == Gtk::RESPONSE_YES) {
 
-                       /* YES  == OPEN, but there's no enum for that */
+                       /* YES  == OPEN, but there's no enum for that */
+
+                       session_name = new_session_dialog->session_name();
 
-                       session_name = new_session_dialog->session_name();
-                       
                        if (session_name.empty()) {
                                response = Gtk::RESPONSE_NONE;
                                continue;
                        } 
 
                        if (session_name[0] == '/' || 
-                           (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == '/') ||
-                           (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == '/')) {
+                                       (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == '/') ||
+                                       (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == '/')) {
                                load_session (Glib::path_get_dirname (session_name), session_name);
                        } else {
                                session_path = new_session_dialog->session_folder();
                                load_session (session_path, session_name);
                        }
-                       
+
                } else if (response == Gtk::RESPONSE_OK) {
 
                        session_name = new_session_dialog->session_name();
-                       
-                       if (new_session_dialog->get_current_page() == 1) {
-                 
-                               /* XXX this is a bit of a hack.. 
+
+                       if (!new_session_dialog->on_new_session_page ()) {
+
+                               /* XXX this is a bit of a hack.. 
                                   i really want the new sesion dialog to return RESPONSE_YES
                                   if we're on page 1 (the load page)
                                   Unfortunately i can't see how atm.. 
                                */
-                               
+
                                if (session_name.empty()) {
                                        response = Gtk::RESPONSE_NONE;
                                        continue;
                                } 
-                               
+
                                if (session_name[0] == '/' || 
-                                   (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == '/') ||
-                                   (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == '/')) {
+                                               (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == '/') ||
+                                               (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == '/')) {
                                        load_session (Glib::path_get_dirname (session_name), session_name);
                                } else {
                                        session_path = new_session_dialog->session_folder();
                                        load_session (session_path, session_name);
                                }
-                       
+
                        } else {
 
                                if (session_name.empty()) {
@@ -1817,8 +1913,8 @@ ARDOUR_UI::new_session (std::string predetermined_path)
                                } 
 
                                if (session_name[0] == '/' || 
-                                   (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == '/') ||
-                                   (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == '/')) {
+                                               (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == '/') ||
+                                               (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == '/')) {
 
                                        session_path = Glib::path_get_dirname (session_name);
                                        session_name = Glib::path_get_basename (session_name);
@@ -1828,74 +1924,74 @@ ARDOUR_UI::new_session (std::string predetermined_path)
                                        session_path = new_session_dialog->session_folder();
 
                                }
-                               
+
                                //XXX This is needed because session constructor wants a 
                                //non-existant path. hopefully this will be fixed at some point.
-                               
+
                                session_path = Glib::build_filename (session_path, session_name);
-                                               
+
                                if (g_file_test (session_path.c_str(), GFileTest (G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))) {
 
                                        Glib::ustring str = string_compose (_("This session\n%1\nalready exists. Do you want to open it?"), session_path);
 
                                        MessageDialog msg (str,
-                                                          false,
-                                                          Gtk::MESSAGE_WARNING,
-                                                          Gtk::BUTTONS_YES_NO,
-                                                          true);
+                                                       false,
+                                                       Gtk::MESSAGE_WARNING,
+                                                       Gtk::BUTTONS_YES_NO,
+                                                       true);
 
 
                                        msg.set_name (X_("CleanupDialog"));
                                        msg.set_wmclass (X_("existing_session"), "Ardour");
                                        msg.set_position (Gtk::WIN_POS_MOUSE);
-                                       
+
                                        switch (msg.run()) {
-                                       case RESPONSE_YES:
-                                               load_session (session_path, session_name);
-                                               goto done;
-                                               break;
-                                       default:
-                                               response = RESPONSE_NONE;
-                                               new_session_dialog->reset ();
-                                               continue;
+                                               case RESPONSE_YES:
+                                                       load_session (session_path, session_name);
+                                                       goto done;
+                                                       break;
+                                               default:
+                                                       response = RESPONSE_NONE;
+                                                       new_session_dialog->reset ();
+                                                       continue;
                                        }
                                }
 
-                               _session_is_new = true;
+                               _session_is_new = true;
 
                                std::string template_name = new_session_dialog->session_template_name();
-                                               
+
                                if (new_session_dialog->use_session_template()) {
-                                                       
+
                                        load_session (session_path, session_name, &template_name);
-                         
+
                                } else {
-                                                       
+
                                        uint32_t cchns;
                                        uint32_t mchns;
                                        AutoConnectOption iconnect;
                                        AutoConnectOption oconnect;
-                                                       
+
                                        if (new_session_dialog->create_control_bus()) {
                                                cchns = (uint32_t) new_session_dialog->control_channel_count();
                                        } else {
                                                cchns = 0;
                                        }
-                                                       
+
                                        if (new_session_dialog->create_master_bus()) {
                                                mchns = (uint32_t) new_session_dialog->master_channel_count();
                                        } else {
                                                mchns = 0;
                                        }
-                                                       
+
                                        if (new_session_dialog->connect_inputs()) {
                                                iconnect = AutoConnectPhysical;
                                        } else {
                                                iconnect = AutoConnectOption (0);
                                        }
-                                                       
+
                                        /// @todo some minor tweaks.
-                                                       
+
                                        if (new_session_dialog->connect_outs_to_master()) {
                                                oconnect = AutoConnectMaster;
                                        } else if (new_session_dialog->connect_outs_to_physical()) {
@@ -1903,34 +1999,44 @@ ARDOUR_UI::new_session (std::string predetermined_path)
                                        } else {
                                                oconnect = AutoConnectOption (0);
                                        } 
-                                                       
+
                                        uint32_t nphysin = (uint32_t) new_session_dialog->input_limit_count();
                                        uint32_t nphysout = (uint32_t) new_session_dialog->output_limit_count();
-                                                       
-                                       build_session (session_path,
-                                                      session_name,
-                                                      cchns,
-                                                      mchns,
-                                                      iconnect,
-                                                      oconnect,
-                                                      nphysin,
-                                                      nphysout, 
-                                                      engine->frame_rate() * 60 * 5);
+
+                                       if (!build_session (session_path,
+                                                               session_name,
+                                                               cchns,
+                                                               mchns,
+                                                               iconnect,
+                                                               oconnect,
+                                                               nphysin,
+                                                               nphysout, 
+                                                               engine->frame_rate() * 60 * 5)) {
+
+                                               response = Gtk::RESPONSE_NONE;
+                                               new_session_dialog->reset ();
+                                               continue;
+                                       }
                                }
                        }
                }
-               
+
        } while (response == Gtk::RESPONSE_NONE);
 
   done:
        show();
        new_session_dialog->get_window()->set_cursor();
        new_session_dialog->hide();
+       return true;
 }
 
 void
 ARDOUR_UI::close_session()
 {
+       if (!check_audioengine()) {
+               return;
+       }
+
        unload_session();
        new_session ();
 }
@@ -1939,17 +2045,14 @@ int
 ARDOUR_UI::load_session (const string & path, const string & snap_name, string* mix_template)
 {
        Session *new_session;
-       int x;
        session_loaded = false;
        
-       x = unload_session ();
-
-       if (x < 0) {
+       if (!check_audioengine()) {
                return -1;
-       } else if (x > 0) {
-               return 0;
        }
 
+       if(!unload_session ()) return -1;
+
        /* if it already exists, we must have write access */
 
        if (::access (path.c_str(), F_OK) == 0 && ::access (path.c_str(), W_OK)) {
@@ -1981,10 +2084,11 @@ ARDOUR_UI::load_session (const string & path, const string & snap_name, string*
                session->set_clean ();
        }
 
+       editor->edit_cursor_position (true);
        return 0;
 }
 
-int
+bool
 ARDOUR_UI::build_session (const string & path, const string & snap_name, 
                          uint32_t control_channels,
                          uint32_t master_channels, 
@@ -1995,15 +2099,14 @@ ARDOUR_UI::build_session (const string & path, const string & snap_name,
                          nframes_t initial_length)
 {
        Session *new_session;
-       int x;
 
-       session_loaded = false;
-       x = unload_session ();
-       if (x < 0) {
-               return -1;
-       } else if (x > 0) {
-               return 0;
+       if (!check_audioengine()) {
+               return false;
        }
+
+       session_loaded = false;
+
+       if (!unload_session ()) return false;
        
        _session_is_new = true;
 
@@ -2014,14 +2117,15 @@ ARDOUR_UI::build_session (const string & path, const string & snap_name,
 
        catch (...) {
 
-               error << string_compose(_("Session \"%1 (snapshot %2)\" did not load successfully"), path, snap_name) << endmsg;
-               return -1;
+               MessageDialog msg (string_compose(_("Could not create session in \"%1\""), path));
+               msg.run ();
+               return false;
        }
 
        connect_to_session (new_session);
 
        session_loaded = true;
-       return 0;
+       return true;
 }
 
 void
@@ -2120,17 +2224,19 @@ require some unused files to continue to exist."));
 
        dimage->set_alignment(ALIGN_LEFT, ALIGN_TOP);
 
+       const string dead_sound_directory = session->session_directory().dead_sound_path().to_string();
+
        if (rep.space < 1048576.0f) {
                if (removed > 1) {
-                 txt.set_text (string_compose (msg, removed, _("files were"), session->path() + "dead_sounds", (float) rep.space / 1024.0f, "kilo"));
+                       txt.set_text (string_compose (msg, removed, _("files were"), dead_sound_directory, (float) rep.space / 1024.0f, "kilo"));
                } else {
-                       txt.set_text (string_compose (msg, removed, _("file was"), session->path() + "dead_sounds", (float) rep.space / 1024.0f, "kilo"));
+                       txt.set_text (string_compose (msg, removed, _("file was"), dead_sound_directory, (float) rep.space / 1024.0f, "kilo"));
                }
        } else {
                if (removed > 1) {
-                       txt.set_text (string_compose (msg, removed, _("files were"), session->path() + "dead_sounds", (float) rep.space / 1048576.0f, "mega"));
+                       txt.set_text (string_compose (msg, removed, _("files were"), dead_sound_directory, (float) rep.space / 1048576.0f, "mega"));
                } else {
-                       txt.set_text (string_compose (msg, removed, _("file was"), session->path() + "dead_sounds", (float) rep.space / 1048576.0f, "mega"));
+                       txt.set_text (string_compose (msg, removed, _("file was"), dead_sound_directory, (float) rep.space / 1048576.0f, "mega"));
                }
        }
 
@@ -2249,7 +2355,7 @@ releasing %4 %5bytes of disk space"));
 }
 
 void
-ARDOUR_UI::add_route ()
+ARDOUR_UI::add_route (Gtk::Window* float_window)
 {
        int count;
 
@@ -2259,7 +2365,9 @@ ARDOUR_UI::add_route ()
 
        if (add_route_dialog == 0) {
                add_route_dialog = new AddRouteDialog;
-               editor->ensure_float (*add_route_dialog);
+               if (float_window) {
+                       add_route_dialog->set_transient_for (*float_window);
+               }
        }
 
        if (add_route_dialog->is_visible()) {
@@ -2268,15 +2376,15 @@ ARDOUR_UI::add_route ()
        }
 
        ResponseType r = (ResponseType) add_route_dialog->run ();
-       
+
        add_route_dialog->hide();
 
        switch (r) {
-       case RESPONSE_ACCEPT:
-               break;
-       default:
-               return;
-               break;
+               case RESPONSE_ACCEPT:
+                       break;
+               default:
+                       return;
+                       break;
        }
 
        if ((count = add_route_dialog->count()) <= 0) {
@@ -2291,17 +2399,28 @@ ARDOUR_UI::add_route ()
        AutoConnectOption oac = Config->get_output_auto_connect();
 
        if (oac & AutoConnectMaster) {
-               output_chan = (session->master_out() ? session->master_out()->n_inputs() : input_chan);
+               output_chan = (session->master_out() ? session->master_out()->n_inputs().n_audio() : input_chan);
        } else {
                output_chan = input_chan;
        }
 
        /* XXX do something with name template */
 
-       if (track) {
-               session_add_audio_track (input_chan, output_chan, add_route_dialog->mode(), count);
-       } else {
-               session_add_audio_bus (input_chan, output_chan, count);
+       if (add_route_dialog->type() == ARDOUR::DataType::MIDI) {
+               if (track) {
+                       session_add_midi_track(count);
+               } else  {
+                       MessageDialog msg (*editor,
+                                       _("Sorry, MIDI Busses are not supported at this time."));
+                       msg.run ();
+                       //session_add_midi_bus();
+               }
+       } else { 
+               if (track) {
+                       session_add_audio_track (input_chan, output_chan, add_route_dialog->mode(), count);
+               } else {
+                       session_add_audio_bus (input_chan, output_chan, count);
+               }
        }
 }
 
@@ -2311,9 +2430,9 @@ ARDOUR_UI::mixer_settings () const
        XMLNode* node = 0;
 
        if (session) {
-               node = session->instant_xml(X_("Mixer"), session->path());
+               node = session->instant_xml(X_("Mixer"));
        } else {
-               node = Config->instant_xml(X_("Mixer"), get_user_ardour_path());
+               node = Config->instant_xml(X_("Mixer"));
        }
 
        if (!node) {
@@ -2329,9 +2448,9 @@ ARDOUR_UI::editor_settings () const
        XMLNode* node = 0;
 
        if (session) {
-               node = session->instant_xml(X_("Editor"), session->path());
+               node = session->instant_xml(X_("Editor"));
        } else {
-               node = Config->instant_xml(X_("Editor"), get_user_ardour_path());
+               node = Config->instant_xml(X_("Editor"));
        }
 
        if (!node) {
@@ -2366,18 +2485,18 @@ ARDOUR_UI::halt_on_xrun_message ()
 void
 ARDOUR_UI::disk_overrun_handler ()
 {
-       ENSURE_GUI_THREAD (mem_fun(*this, &ARDOUR_UI::disk_underrun_handler));
+       ENSURE_GUI_THREAD (mem_fun(*this, &ARDOUR_UI::disk_overrun_handler));
 
-       if (!have_disk_overrun_displayed) {
-               have_disk_overrun_displayed = true;
-               MessageDialog msg (*editor, X_("diskrate dialog"), _("\
+       if (!have_disk_speed_dialog_displayed) {
+               have_disk_speed_dialog_displayed = true;
+               MessageDialog* msg = new MessageDialog (*editor, _("\
 The disk system on your computer\n\
 was not able to keep up with Ardour.\n\
 \n\
 Specifically, it failed to write data to disk\n\
 quickly enough to keep up with recording.\n"));
-               msg.run ();
-               have_disk_overrun_displayed = false;
+               msg->signal_response().connect (bind (mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
+               msg->show_all ();
        }
 }
 
@@ -2386,29 +2505,24 @@ ARDOUR_UI::disk_underrun_handler ()
 {
        ENSURE_GUI_THREAD (mem_fun(*this, &ARDOUR_UI::disk_underrun_handler));
 
-       if (!have_disk_underrun_displayed) {
-               have_disk_underrun_displayed = true;
-               MessageDialog msg (*editor,
-                       (_("The disk system on your computer\n\
+       if (!have_disk_speed_dialog_displayed) {
+               have_disk_speed_dialog_displayed = true;
+               MessageDialog* msg = new MessageDialog (*editor,
+                                  _("The disk system on your computer\n\
 was not able to keep up with Ardour.\n\
 \n\
 Specifically, it failed to read data from disk\n\
-quickly enough to keep up with playback.\n")));
-               msg.run ();
-               have_disk_underrun_displayed = false;
+quickly enough to keep up with playback.\n"));
+               msg->signal_response().connect (bind (mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
+               msg->show_all ();
        } 
 }
 
 void
-ARDOUR_UI::disk_underrun_message_gone ()
+ARDOUR_UI::disk_speed_dialog_gone (int ignored_response, MessageDialog* msg)
 {
-       have_disk_underrun_displayed = false;
-}
-
-void
-ARDOUR_UI::disk_overrun_message_gone ()
-{
-       have_disk_underrun_displayed = false;
+       have_disk_speed_dialog_displayed = false;
+       delete msg;
 }
 
 int
@@ -2480,8 +2594,7 @@ ARDOUR_UI::cmdline_new_session (string path)
        }
 
        new_session (path);
-
-       _will_create_new_session_automatically = false; /* done it */
+       
        return FALSE; /* don't call it again */
 }
 
@@ -2542,8 +2655,17 @@ ARDOUR_UI::use_config ()
 void
 ARDOUR_UI::update_transport_clocks (nframes_t pos)
 {
-       primary_clock.set (pos);
-       secondary_clock.set (pos);
+       if (Config->get_primary_clock_delta_edit_cursor()) {
+               primary_clock.set (pos, false, editor->edit_cursor_position(false), 'p');
+       } else {
+               primary_clock.set (pos, 0, true);
+       }
+
+       if (Config->get_secondary_clock_delta_edit_cursor()) {
+               secondary_clock.set (pos, false, editor->edit_cursor_position(false), 's');
+       } else {
+               secondary_clock.set (pos);
+       }
 
        if (big_clock_window) {
                big_clock.set (pos);
@@ -2587,6 +2709,9 @@ ARDOUR_UI::save_keybindings ()
 bool
 ARDOUR_UI::first_idle ()
 {
+       if (session) {
+               session->allow_auto_play (true);
+       }
        can_save_keybindings = true;
        return false;
 }
@@ -2616,23 +2741,22 @@ void
 ARDOUR_UI::TransportControllable::set_value (float val)
 {
        if (type == ShuttleControl) {
-
                double fract;
 
-               if (val == 63.0f) {
+               if (val == 0.5f) {
                        fract = 0.0;
                } else {
-                       if (val < 63.0f) {
-                               fract = -((63.0f - val)/63.0f);
+                       if (val < 0.5f) {
+                               fract = -((0.5f - val)/0.5f);
                        } else {
-                               fract = ((val - 63.0f)/63.0f);
+                               fract = ((val - 0.5f)/0.5f);
                        }
                }
                
                ui.set_shuttle_fract (fract);
                return;
        }
-               
+
        if (val < 0.5f) {
                /* do nothing: these are radio-style actions */
                return;
@@ -2670,7 +2794,7 @@ ARDOUR_UI::TransportControllable::set_value (float val)
                return;
        }
 
-       Glib::RefPtr<Action> act = ActionManager::get_action ("transport", action);
+       Glib::RefPtr<Action> act = ActionManager::get_action ("Transport", action);
 
        if (act) {
                act->activate ();
@@ -2711,3 +2835,50 @@ ARDOUR_UI::TransportControllable::set_id (const string& str)
 {
        _id = str;
 }
+
+void
+ARDOUR_UI::setup_profile ()
+{
+       if (gdk_screen_width() < 1200) {
+               Profile->set_small_screen ();
+       }
+}
+
+void
+ARDOUR_UI::disable_all_plugins ()
+{
+       if (!session) {
+               return;
+       }
+
+       // session->begin_reversible_command (_("Disable all plugins"));
+
+       boost::shared_ptr<Session::RouteList> routes = session->get_routes ();
+
+       for (Session::RouteList::iterator i = routes->begin(); i != routes->end(); ++i) {
+               // XMLNode& before = (*i)->get_redirect_state ();
+               // session->add_command (new MementoCommand<Route>(**i, &before, 0));
+               (*i)->disable_plugins ();
+               // XMLNode& after = (*i)->get_redirect_state ();
+               // session->add_command (new MementoCommand<Route>(**i, 0, &after));
+                                     
+       }
+
+       // session->commit_reversible_command ();
+}
+
+void
+ARDOUR_UI::ab_all_plugins ()
+{
+       if (!session) {
+               return;
+       }
+
+       boost::shared_ptr<Session::RouteList> routes = session->get_routes ();
+
+       for (Session::RouteList::iterator i = routes->begin(); i != routes->end(); ++i) {
+               (*i)->ab_plugins (ab_direction);
+       }
+       
+       ab_direction = !ab_direction;
+}