Various work on bundles. We now have a Bundle Manager dialogue, and hopefully things...
[ardour.git] / gtk2_ardour / ardour_ui.cc
index 10f6a2fe7ad07adb5feb88f2ca33ad92b2bb4bf2..1182f397922bfdbd000233c8ccaf78fed3e6819c 100644 (file)
 #include <gtkmm/accelmap.h>
 
 #include <pbd/error.h>
+#include <pbd/misc.h>
 #include <pbd/compose.h>
-#include <pbd/pathscanner.h>
 #include <pbd/failed_constructor.h>
 #include <pbd/enumwriter.h>
 #include <pbd/memento_command.h>
+#include <pbd/file_utils.h>
 
 #include <gtkmm2ext/gtk_ui.h>
 #include <gtkmm2ext/utils.h>
 #include <gtkmm2ext/popup.h>
 #include <gtkmm2ext/window_title.h>
 
-#include <midi++/port.h>
-#include <midi++/mmc.h>
+#include <midi++/manager.h>
 
 #include <ardour/ardour.h>
 #include <ardour/profile.h>
 #include <ardour/session_directory.h>
 #include <ardour/session_route.h>
+#include <ardour/session_state_utils.h>
 #include <ardour/session_utils.h>
 #include <ardour/port.h>
 #include <ardour/audioengine.h>
@@ -68,6 +69,7 @@
 #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"
@@ -83,6 +85,7 @@
 #include "utils.h"
 #include "gui_thread.h"
 #include "theme_manager.h"
+#include "bundle_manager.h"
 
 #include "i18n.h"
 
@@ -93,12 +96,12 @@ 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::SuperRapidScreenUpdate;
 sigc::signal<void,nframes_t, bool, nframes_t> ARDOUR_UI::Clock;
-sigc::signal<int,string> ThemeChanged;
 
 ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
 
@@ -154,26 +157,27 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
 
          auditioning_alert_button (_("AUDITION")),
          solo_alert_button (_("SOLO")),
-         shown_flag (false)
+         shown_flag (false),
+         error_log_button (_("Errors"))
+
 {
        using namespace Gtk::Menu_Helpers;
 
        Gtkmm2ext::init();
        
+
+#ifdef TOP_MENUBAR
+       _auto_display_errors = false;
+#endif
        about = 0;
 
        if (theArdourUI == 0) {
                theArdourUI = this;
        }
 
-       /* load colors */
-
+       ui_config = new UIConfiguration();
        theme_manager = new ThemeManager();
-
-       //std::string color_file = ARDOUR::find_config_file("ardour.colors");
-
-       //theme_manager->load (color_file);
-
+       
        editor = 0;
        mixer = 0;
        session = 0;
@@ -182,6 +186,9 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
        session_selector_window = 0;
        last_key_press_time = 0;
        connection_editor = 0;
+       _will_create_new_session_automatically = false;
+       new_session_dialog = 0;
+       loading_dialog = 0;
        add_route_dialog = 0;
        route_params = 0;
        option_editor = 0;
@@ -191,8 +198,19 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
        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();
+
+       /* store all bindings changes in per-user file, no matter where they were loaded from */
+       user_keybindings_path = user_config_directory().to_string ();
+       user_keybindings_path += '/';
+       user_keybindings_path += "ardour.bindings";
 
        can_save_keybindings = false;
 
@@ -209,8 +227,6 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
        gettimeofday (&last_peak_grab, 0);
        gettimeofday (&last_shuttle_request, 0);
 
-       ThemeChanged.connect (mem_fun(*this, &ARDOUR_UI::load_rcfile));
-
        ARDOUR::Diskstream::DiskOverrun.connect (mem_fun(*this, &ARDOUR_UI::disk_overrun_handler));
        ARDOUR::Diskstream::DiskUnderrun.connect (mem_fun(*this, &ARDOUR_UI::disk_underrun_handler));
 
@@ -218,31 +234,80 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
 
        ARDOUR::Session::AskAboutPendingState.connect (mem_fun(*this, &ARDOUR_UI::pending_state_dialog));
 
-       /* have to wait for AudioEngine and Configuration before proceeding */
+       /* lets get this party started */
+
+       try {
+               ARDOUR::init (ARDOUR_COMMAND_LINE::use_vst, ARDOUR_COMMAND_LINE::try_hw_optimization);
+               setup_gtk_ardour_enums ();
+               Config->set_current_owner (ConfigVariableBase::Interface);
+               setup_profile ();
+
+       } catch (failed_constructor& err) {
+               error << _("could not initialize Ardour.") << endmsg;
+               // pass it on up
+               throw err;
+       } 
+
+       /* we like keyboards */
+
+       keyboard = new Keyboard;
+
+       starting.connect (mem_fun(*this, &ARDOUR_UI::startup));
+       stopping.connect (mem_fun(*this, &ARDOUR_UI::shutdown));
+
+       platform_specific ();
 }
 
-void
-ARDOUR_UI::set_engine (AudioEngine& e)
+int
+ARDOUR_UI::create_engine ()
 {
-       engine = &e;
+       // this gets called every time by new_session()
+
+       if (engine) {
+               return 0;
+       }
+
+       try { 
+               engine = new ARDOUR::AudioEngine (ARDOUR_COMMAND_LINE::jack_client_name);
+
+       } catch (...) {
+
+               return -1;
+       }
 
        engine->Stopped.connect (mem_fun(*this, &ARDOUR_UI::engine_stopped));
        engine->Running.connect (mem_fun(*this, &ARDOUR_UI::engine_running));
        engine->Halted.connect (mem_fun(*this, &ARDOUR_UI::engine_halted));
        engine->SampleRateChanged.connect (mem_fun(*this, &ARDOUR_UI::update_sample_rate));
 
-       ActionManager::init ();
-       new_session_dialog = new NewSessionDialog();
+       post_engine ();
 
-       _tooltips.enable();
+       return 0;
+}
 
-       keyboard = new Keyboard;
+void
+ARDOUR_UI::post_engine ()
+{
+       extern int setup_midi ();
+
+       /* Things to be done once we create the AudioEngine
+        */
+
+       MIDI::Manager::instance()->set_api_data (engine->jack());
+       setup_midi ();
+
+       ActionManager::init ();
+       _tooltips.enable();
 
        if (setup_windows ()) {
                throw failed_constructor ();
        }
+       
+       check_memory_locking();
 
-       if (GTK_ARDOUR::show_key_actions) {
+       /* this is the first point at which all the keybindings are available */
+
+       if (ARDOUR_COMMAND_LINE::show_key_actions) {
                vector<string> names;
                vector<string> paths;
                vector<string> keys;
@@ -259,9 +324,6 @@ ARDOUR_UI::set_engine (AudioEngine& e)
                exit (0);
        }
 
-       /* start with timecode, metering enabled
-       */
-       
        blink_timeout_tag = -1;
 
        /* the global configuration object is now valid */
@@ -280,15 +342,26 @@ ARDOUR_UI::set_engine (AudioEngine& e)
 
        /* start the time-of-day-clock */
        
+#ifndef GTKOSX
+       /* OS X provides an always visible wallclock, so don't be stupid */
        update_wall_clock ();
        Glib::signal_timeout().connect (mem_fun(*this, &ARDOUR_UI::update_wall_clock), 60000);
+#endif
 
        update_disk_space ();
        update_cpu_load ();
        update_sample_rate (engine->frame_rate());
 
-       starting.connect (mem_fun(*this, &ARDOUR_UI::startup));
-       stopping.connect (mem_fun(*this, &ARDOUR_UI::shutdown));
+       /* now start and maybe save state */
+
+       if (do_engine_start () == 0) {
+               if (session && _session_is_new) {
+                       /* we need to retain initial visual 
+                          settings for a new session 
+                       */
+                       session->save_state ("");
+               }
+       }
 }
 
 ARDOUR_UI::~ARDOUR_UI ()
@@ -310,6 +383,11 @@ ARDOUR_UI::~ARDOUR_UI ()
        if (add_route_dialog) {
                delete add_route_dialog;
        }
+
+
+       if (new_session_dialog) {
+               delete new_session_dialog;
+       }
 }
 
 gint
@@ -429,7 +507,7 @@ ARDOUR_UI::save_ardour_state ()
 
        if (session) {
                session->add_instant_xml (enode);
-               session->add_instant_xml (mnode);
+       session->add_instant_xml (mnode);
        } else {
                Config->add_instant_xml (enode);
                Config->add_instant_xml (mnode);
@@ -471,10 +549,152 @@ ARDOUR_UI::update_autosave ()
        }
 }
 
+void
+ARDOUR_UI::backend_audio_error (bool we_set_params, Gtk::Window* toplevel)
+{
+       string title;
+       if (we_set_params) {
+               title = _("Ardour could not start JACK");
+       } else {
+               title = _("Ardour could not connect to JACK.");
+       }
+
+       MessageDialog win (title,
+                          false,
+                          Gtk::MESSAGE_INFO,
+                          Gtk::BUTTONS_NONE);
+       
+       if (we_set_params) {
+               win.set_secondary_text(_("There are several possible reasons:\n\
+\n\
+1) You requested audio parameters that are not supported..\n\
+2) JACK is running as another user.\n\
+\n\
+Please consider the possibilities, and perhaps try different parameters."));
+       } else {
+               win.set_secondary_text(_("There are several possible reasons:\n\
+\n\
+1) JACK is not running.\n\
+2) JACK is running as another user, perhaps root.\n\
+3) There is already another client called \"ardour\".\n\
+\n\
+Please consider the possibilities, and perhaps (re)start JACK."));
+       }
+
+       if (toplevel) {
+               win.set_transient_for (*toplevel);
+       }
+
+       if (we_set_params) {
+               win.add_button (Stock::OK, RESPONSE_CLOSE);
+       } else {
+               win.add_button (Stock::QUIT, RESPONSE_CLOSE);
+       }
+
+       win.set_default_response (RESPONSE_CLOSE);
+       
+       win.show_all ();
+       win.set_position (Gtk::WIN_POS_CENTER);
+
+       if (!ARDOUR_COMMAND_LINE::no_splash) {
+               hide_splash ();
+       }
+
+       /* we just don't care about the result, but we want to block */
+
+       win.run ();
+}
+
 void
 ARDOUR_UI::startup ()
 {
-       check_memory_locking();
+       string name, path;
+       bool isnew;
+
+       new_session_dialog = new NewSessionDialog();
+       
+       /* If no session name is given: we're not loading a session yet, nor creating a new one */
+       
+       if (ARDOUR_COMMAND_LINE::session_name.length()) {
+       
+               /* Load session or start the new session dialog */
+               
+               if (find_session (ARDOUR_COMMAND_LINE::session_name, path, name, isnew)) {
+                       error << string_compose(_("could not load command line session \"%1\""), 
+                                               ARDOUR_COMMAND_LINE::session_name) << endmsg;
+                       return;
+               }
+
+               if (!ARDOUR_COMMAND_LINE::new_session) {
+                       
+                       /* Supposed to be loading an existing session, but the session doesn't exist */
+                       
+                       if (isnew) {
+                               error << string_compose (_("\n\nNo session named \"%1\" exists.\n"
+                                                          "To create it from the command line, start ardour as \"ardour --new %1"), path) 
+                                     << endmsg;
+                               return;
+                       }
+               }
+               
+               new_session_dialog->set_session_name (name);
+               new_session_dialog->set_session_folder (Glib::path_get_basename (path));
+               _session_is_new = isnew;
+       }
+
+       hide_splash ();
+
+       bool have_backend = EngineControl::engine_running();
+       bool need_nsd;
+       bool load_needed = false;
+
+       if (have_backend) {
+
+               /* backend audio is working */
+
+               if (ARDOUR_COMMAND_LINE::session_name.empty() || ARDOUR_COMMAND_LINE::new_session) {
+                       /* need NSD to get session name and other info */
+                       need_nsd = true;
+               } else {
+                       need_nsd = false;
+               }
+               
+       } else {
+
+               XMLNode* audio_setup = Config->extra_xml ("AudioSetup");
+               
+               if (audio_setup) {
+                       new_session_dialog->engine_control.set_state (*audio_setup);
+               }
+
+               /* no backend audio, must bring up NSD to check configuration */
+               
+               need_nsd = true;
+       }
+
+       if (need_nsd) {
+
+               if (!get_session_parameters (ARDOUR_COMMAND_LINE::session_name, have_backend, ARDOUR_COMMAND_LINE::new_session)) {
+                       return;
+               }
+
+       } else {
+
+               if (create_engine ()) {
+                       backend_audio_error (false);
+                       exit (1);
+               }
+
+               load_needed = true;
+       }
+       
+       if (load_needed) {
+               if (load_session (ARDOUR_COMMAND_LINE::session_name, name)) {
+                       return;
+               }
+       }
+
+       show ();
 }
 
 void
@@ -529,7 +749,9 @@ ARDOUR_UI::check_memory_locking ()
                                
                                hbox.pack_start (cb, true, false);
                                vbox->pack_start (hbox);
-                               hbox.show_all ();
+                               cb.show();
+                               vbox->show();
+                               hbox.show ();
                                
                                editor->ensure_float (msg);
                                msg.run ();
@@ -571,6 +793,7 @@ If you still wish to quit, please use the\n\n\
        }
        engine->stop (true);
        Config->save_state();
+       ARDOUR_UI::config()->save_state();
        quit ();
 }
 
@@ -622,7 +845,11 @@ ARDOUR_UI::ask_about_saving_session (const string & what)
        window.set_position (Gtk::WIN_POS_MOUSE);
        window.set_modal (true);
        window.set_resizable (false);
-       window.show_all ();
+
+       dhbox.show();
+       prompt_label.show();
+       dimage->show();
+       window.show();
 
        save_the_session = 0;
 
@@ -665,6 +892,8 @@ ARDOUR_UI::every_point_one_seconds ()
 gint
 ARDOUR_UI::every_point_zero_one_seconds ()
 {
+       // august 2007: actual update frequency: 40Hz, not 100Hz
+
        SuperRapidScreenUpdate(); /* EMIT_SIGNAL */
        return TRUE;
 }
@@ -792,73 +1021,67 @@ ARDOUR_UI::session_menu (GdkEventButton *ev)
 void
 ARDOUR_UI::redisplay_recent_sessions ()
 {
-       vector<string *> *sessions;
-       vector<string *>::iterator i;
+       std::vector<sys::path> session_directories;
        RecentSessionsSorter cmp;
        
        recent_session_display.set_model (Glib::RefPtr<TreeModel>(0));
        recent_session_model->clear ();
 
-       RecentSessions rs;
+       ARDOUR::RecentSessions rs;
        ARDOUR::read_recent_sessions (rs);
 
        if (rs.empty()) {
                recent_session_display.set_model (recent_session_model);
                return;
        }
-
-       /* sort them alphabetically */
+       //
+       // sort them alphabetically
        sort (rs.begin(), rs.end(), cmp);
-       sessions = new vector<string*>;
-
-       for (RecentSessions::iterator i = rs.begin(); i != rs.end(); ++i) {
-               sessions->push_back (new string ((*i).second));
+       
+       for (ARDOUR::RecentSessions::iterator i = rs.begin(); i != rs.end(); ++i) {
+               session_directories.push_back ((*i).second);
        }
+       
+       for (vector<sys::path>::const_iterator i = session_directories.begin();
+                       i != session_directories.end(); ++i)
+       {
+               std::vector<sys::path> state_file_paths;
+           
+               // now get available states for this session
 
-       for (i = sessions->begin(); i != sessions->end(); ++i) {
-
-               vector<string*>* states;
-               vector<const gchar*> item;
-               string fullpath = *(*i);
-               
-               /* remove any trailing / */
-
-               if (fullpath[fullpath.length()-1] == '/') {
-                       fullpath = fullpath.substr (0, fullpath.length()-1);
-               }
-
-               /* now get available states for this session */
+               get_state_files_in_directory (*i, state_file_paths);
 
-               if ((states = Session::possible_states (fullpath)) == 0) {
-                       /* no state file? */
+               if (state_file_paths.empty()) {
+                       // no state file?
                        continue;
                }
+         
+               std::vector<string> state_file_names(get_file_names_no_extension (state_file_paths));
 
-               TreeModel::Row row = *(recent_session_model->append());
+               Gtk::TreeModel::Row row = *(recent_session_model->append());
 
+               const string fullpath = (*i).to_string();
+               
                row[recent_session_columns.visible_name] = Glib::path_get_basename (fullpath);
                row[recent_session_columns.fullpath] = fullpath;
+               
+               if (state_file_names.size() > 1) {
 
-               if (states->size() > 1) {
+                       // add the children
 
-                       /* add the children */
-                       
-                       for (vector<string*>::iterator i2 = states->begin(); i2 != states->end(); ++i2) {
-                               
-                               TreeModel::Row child_row = *(recent_session_model->append (row.children()));
+                       for (std::vector<std::string>::iterator i2 = state_file_names.begin();
+                                       i2 != state_file_names.end(); ++i2)
+                       {
 
-                               child_row[recent_session_columns.visible_name] = **i2;
-                               child_row[recent_session_columns.fullpath] = fullpath;
+                               Gtk::TreeModel::Row child_row = *(recent_session_model->append (row.children()));
 
-                               delete *i2;
+                               child_row[recent_session_columns.visible_name] = *i2;
+                               child_row[recent_session_columns.fullpath] = fullpath;
                        }
                }
-
-               delete states;
        }
 
        recent_session_display.set_model (recent_session_model);
-       delete sessions;
 }
 
 void
@@ -885,7 +1108,10 @@ ARDOUR_UI::build_session_selector ()
        session_selector_window->set_name ("SessionSelectorWindow");
        session_selector_window->set_size_request (200, 400);
        session_selector_window->get_vbox()->pack_start (*scroller);
-       session_selector_window->show_all_children();
+
+       recent_session_display.show();
+       scroller->show();
+       //session_selector_window->get_vbox()->show();
 }
 
 void
@@ -990,6 +1216,7 @@ ARDOUR_UI::open_session ()
                open_session_selector = new Gtk::FileChooserDialog (_("open session"), FILE_CHOOSER_ACTION_OPEN);
                open_session_selector->add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
                open_session_selector->add_button (Gtk::Stock::OPEN, Gtk::RESPONSE_ACCEPT);
+               open_session_selector->set_default_response(Gtk::RESPONSE_ACCEPT);
 
                FileFilter session_filter;
                session_filter.add_pattern ("*.ardour");
@@ -1244,7 +1471,7 @@ ARDOUR_UI::transport_record ()
                        break;
                case Session::Recording:
                case Session::Enabled:
-                       session->disable_record (true);
+                       session->disable_record (false, true);
                }
        }
 }
@@ -1427,7 +1654,7 @@ ARDOUR_UI::engine_running ()
        ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, false);
 
        Glib::RefPtr<Action> action;
-       char* action_name = 0;
+       const char* action_name = 0;
 
        switch (engine->frames_per_cycle()) {
        case 32:
@@ -1510,42 +1737,9 @@ ARDOUR_UI::do_engine_start ()
 void
 ARDOUR_UI::setup_theme ()
 {
-       string rcfile;
-       char* env;
-
-       if ((env = getenv ("ARDOUR2_UI_RC")) != 0 && strlen (env)) {
-               rcfile = env;
-       } else {
-               rcfile = Config->get_ui_rc_file();
-       }
-
-       rcfile = find_config_file (rcfile);
-       
-       if (rcfile.empty()) {
-               warning << _("Without a UI style file, ardour will look strange.\n Please set ARDOUR2_UI_RC to point to a valid UI style file") << endmsg;
-       } else {
-               cerr << "Loading ui configuration file " << rcfile << endl;
-       }
-
-       ThemeChanged (rcfile); //EMIT SIGNAL
        theme_manager->setup_theme();
 }
 
-gint
-ARDOUR_UI::start_engine ()
-{
-       if (do_engine_start () == 0) {
-               if (session && _session_is_new) {
-                       /* we need to retain initial visual 
-                          settings for a new session 
-                       */
-                       session->save_state ("");
-               }
-       }
-
-       return FALSE;
-}
-
 void
 ARDOUR_UI::update_clocks ()
 {
@@ -1815,6 +2009,10 @@ ARDOUR_UI::save_template ()
        ArdourPrompter prompter (true);
        string name;
 
+       if (!check_audioengine()) {
+               return;
+       }
+
        prompter.set_name (X_("Prompter"));
        prompter.set_prompt (_("Name for mix template:"));
        prompter.set_initial_text(session->name() + _("-template"));
@@ -1835,30 +2033,34 @@ ARDOUR_UI::save_template ()
 }
 
 bool
-ARDOUR_UI::new_session (std::string predetermined_path)
+ARDOUR_UI::get_session_parameters (Glib::ustring predetermined_path, bool have_engine, bool should_be_new)
 {
        string session_name;
        string session_path;
+       string template_name;
 
-       if (!check_audioengine()) {
-               return false;
+       if (!loading_dialog) {
+               loading_dialog = new MessageDialog (*new_session_dialog, 
+                                                   "",
+                                                   false,
+                                                   Gtk::MESSAGE_INFO,
+                                                   Gtk::BUTTONS_NONE);
        }
-
+               
        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_position (WIN_POS_CENTER);
        new_session_dialog->set_current_page (0);
 
        do {
-               response = new_session_dialog->run ();
+               new_session_dialog->set_have_engine (have_engine);
 
-               if (!check_audioengine()) {
-                       new_session_dialog->hide ();
-                       return false;
-               }
+               new_session_dialog->show();
+               new_session_dialog->present ();
+               response = new_session_dialog->run ();
 
                _session_is_new = false;
 
@@ -1872,65 +2074,119 @@ ARDOUR_UI::new_session (std::string predetermined_path)
 
                } else if (response == Gtk::RESPONSE_NONE) {
 
-                       /* Clear was pressed */
-                       new_session_dialog->reset();
+                       /* Clear was pressed */
+                       new_session_dialog->reset();
+                       continue;
+               }
 
-               } else if (response == Gtk::RESPONSE_YES) {
+               /* first things first ... if we're here to help set up audio parameters
+                  this is where want to do that.
+               */
 
-                       /* YES  == OPEN, but there's no enum for that */
+               if (!have_engine) {
+                       if (new_session_dialog->engine_control.setup_engine ()) {
+                               new_session_dialog->hide ();
+                               return false;
+                       } 
+               }
 
-                       session_name = new_session_dialog->session_name();
+#ifdef GTKOSX
+               /* X11 users will always have fontconfig info around, but new GTK-OSX users 
+                  may not and it can take a while to build it. Warn them.
+               */
 
+               Glib::ustring fontconfig = Glib::build_filename (Glib::get_home_dir(), ".fontconfig");
+               
+               if (!Glib::file_test (fontconfig, Glib::FILE_TEST_EXISTS|Glib::FILE_TEST_IS_DIR)) {
+                       MessageDialog msg (*new_session_dialog,
+                                          _("Welcome to Ardour.\n\n"
+                                            "The program will take a bit longer to start up\n"
+                                            "while the system fonts are checked.\n\n"
+                                            "This will only be done once, and you will\n"
+                                            "not see this message again\n"),
+                                          true,
+                                          Gtk::MESSAGE_INFO,
+                                          Gtk::BUTTONS_OK);
+                       msg.show_all ();
+                       msg.present ();
+                       msg.run ();
+               }
+#endif
+               loading_dialog->set_message (_("Starting audio engine"));
+               loading_dialog->show_all ();
+               flush_pending ();
+               
+               if (create_engine ()) {
+                       backend_audio_error (!have_engine, new_session_dialog);
+                       loading_dialog->hide ();
+                       flush_pending ();
+                       /* audio setup page */
+                       new_session_dialog->set_current_page (2);
+                       /* try again */
+                       response = Gtk::RESPONSE_NONE;
+                       continue;
+               }
+
+               have_engine = true;             
+                       
+               /* now handle possible affirmative responses */
+
+               if (response == Gtk::RESPONSE_YES) {
+
+                       /* YES == OPEN from the session selector */
+
+                       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->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.. 
-                               */
+                       /* OK == OPEN button */
 
-                               if (session_name.empty()) {
-                                       response = Gtk::RESPONSE_NONE;
-                                       continue;
-                               } 
+                       session_name = new_session_dialog->session_name();
+               
+                       if (session_name.empty()) {
+                               response = Gtk::RESPONSE_NONE;
+                               continue;
+                       } 
+                               
+                       switch (new_session_dialog->get_current_page()) {
+                       case 1: /* recent session selector */
+                       case 2: /* audio engine control */
 
                                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);
                                }
+                               break;
 
-                       } else {
+                       case 0: /* nominally the "new" session creator, but could be in use for an old session */
 
-                               if (session_name.empty()) {
-                                       response = Gtk::RESPONSE_NONE;
-                                       continue;
-                               } 
+                               if (new_session_dialog->get_current_page() == 0 && ARDOUR_COMMAND_LINE::session_name.empty()) {
+                                       should_be_new = true;
+                               }
+
+                               /* handle what appear to be paths rather than just a name */
 
                                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);
@@ -1940,108 +2196,144 @@ 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 (!should_be_new) {
 
-                               if (g_file_test (session_path.c_str(), GFileTest (G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))) {
+                                       load_session (session_path, session_name);
+                                       continue; /* leaves while() loop because response != NONE */
+
+                               } else if (Glib::file_test (session_path, Glib::FileTest (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:
+                                               new_session_dialog->hide ();
+                                               goto_editor_window ();
+                                               flush_pending ();
+                                               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;
+                                               
+                               if (new_session_dialog->use_session_template()) {
 
-                               std::string template_name = new_session_dialog->session_template_name();
+                                       template_name = new_session_dialog->session_template_name();
 
-                               if (new_session_dialog->use_session_template()) {
+                                       new_session_dialog->hide ();
+                                       goto_editor_window ();
+                                       flush_pending ();
 
                                        load_session (session_path, session_name, &template_name);
-
+                         
                                } else {
 
                                        uint32_t cchns;
                                        uint32_t mchns;
                                        AutoConnectOption iconnect;
                                        AutoConnectOption oconnect;
+                                       uint32_t nphysin;
+                                       uint32_t nphysout;
+                                       
+                                       if (Profile->get_sae()) {
 
-                                       if (new_session_dialog->create_control_bus()) {
-                                               cchns = (uint32_t) new_session_dialog->control_channel_count();
-                                       } else {
                                                cchns = 0;
-                                       }
+                                               mchns = 2;
+                                               iconnect = AutoConnectPhysical;
+                                               oconnect = AutoConnectMaster;
+                                               nphysin = 0; // use all available
+                                               nphysout = 0; // use all available
 
-                                       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);
+                                               /* get settings from advanced section of NSD */
+                                               
+                                               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()) {
+                                                       oconnect = AutoConnectPhysical;
+                                               } else {
+                                                       oconnect = AutoConnectOption (0);
+                                               } 
+                                               
+                                               nphysin = (uint32_t) new_session_dialog->input_limit_count();
+                                               nphysout = (uint32_t) new_session_dialog->output_limit_count();
                                        }
 
-                                       /// @todo some minor tweaks.
-
-                                       if (new_session_dialog->connect_outs_to_master()) {
-                                               oconnect = AutoConnectMaster;
-                                       } else if (new_session_dialog->connect_outs_to_physical()) {
-                                               oconnect = AutoConnectPhysical;
-                                       } 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();
-
-                                       if (!build_session (session_path,
-                                                               session_name,
-                                                               cchns,
-                                                               mchns,
-                                                               iconnect,
-                                                               oconnect,
-                                                               nphysin,
-                                                               nphysout, 
-                                                               engine->frame_rate() * 60 * 5)) {
-
+                                       new_session_dialog->hide ();
+                                       goto_editor_window ();
+                                       flush_pending ();
+
+                                       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;
                                        }
                                }
+                               break;
+
+                       default:
+                               break;
                        }
                }
-
+               
        } while (response == Gtk::RESPONSE_NONE);
 
   done:
        show();
-       new_session_dialog->get_window()->set_cursor();
+       loading_dialog->hide ();
        new_session_dialog->hide();
        return true;
 }
@@ -2053,21 +2345,32 @@ ARDOUR_UI::close_session()
                return;
        }
 
-       unload_session();
-       new_session ();
+       unload_session (true);
+
+       get_session_parameters ("", true, false);
 }
 
 int
 ARDOUR_UI::load_session (const string & path, const string & snap_name, string* mix_template)
 {
        Session *new_session;
+       int unload_status;
+       int retval = -1;
+
        session_loaded = false;
-       
+
        if (!check_audioengine()) {
                return -1;
        }
 
-       if(!unload_session ()) return -1;
+       unload_status = unload_session ();
+
+       if (unload_status < 0) {
+               goto out;
+       } else if (unload_status > 0) {
+               retval = 0;
+               goto out;
+       }
 
        /* if it already exists, we must have write access */
 
@@ -2075,17 +2378,23 @@ ARDOUR_UI::load_session (const string & path, const string & snap_name, string*
                MessageDialog msg (*editor, _("You do not have write access to this session.\n"
                                              "This prevents the session from being loaded."));
                msg.run ();
-               return -1;
+               goto out;
+       }
+
+       if (loading_dialog) {
+               loading_dialog->set_markup (_("Please wait while Ardour loads your session"));
+               flush_pending ();
        }
 
+       disable_screen_updates ();
+
        try {
                new_session = new Session (*engine, path, snap_name, mix_template);
        }
 
        catch (...) {
-
                error << string_compose(_("Session \"%1 (snapshot %2)\" did not load successfully"), path, snap_name) << endmsg;
-               return -1;
+               goto out;
        }
 
        connect_to_session (new_session);
@@ -2101,10 +2410,15 @@ ARDOUR_UI::load_session (const string & path, const string & snap_name, string*
        }
 
        editor->edit_cursor_position (true);
-       return 0;
+       enable_screen_updates ();
+       flush_pending ();
+       retval = 0;
+
+  out:
+       return retval;
 }
 
-bool
+int
 ARDOUR_UI::build_session (const string & path, const string & snap_name, 
                          uint32_t control_channels,
                          uint32_t master_channels, 
@@ -2115,14 +2429,21 @@ ARDOUR_UI::build_session (const string & path, const string & snap_name,
                          nframes_t initial_length)
 {
        Session *new_session;
+       int x;
 
        if (!check_audioengine()) {
-               return false;
+               return -1;
        }
 
        session_loaded = false;
 
-       if (!unload_session ()) return false;
+       x = unload_session ();
+
+       if (x < 0) {
+               return -1;
+       } else if (x > 0) {
+               return 0;
+       }
        
        _session_is_new = true;
 
@@ -2135,13 +2456,13 @@ ARDOUR_UI::build_session (const string & path, const string & snap_name,
 
                MessageDialog msg (string_compose(_("Could not create session in \"%1\""), path));
                msg.run ();
-               return false;
+               return -1;
        }
 
        connect_to_session (new_session);
 
        session_loaded = true;
-       return true;
+       return 0;
 }
 
 void
@@ -2277,7 +2598,16 @@ require some unused files to continue to exist."));
        results.add_button (Stock::CLOSE, RESPONSE_CLOSE);
        results.set_default_response (RESPONSE_CLOSE);
        results.set_position (Gtk::WIN_POS_MOUSE);
-       results.show_all_children ();
+
+       results_display.show();
+       list_scroller.show();
+       txt.show();
+       dvbox.show();
+       dhbox.show();
+       ddhbox.show();
+       dimage->show();
+
+       //results.get_vbox()->show();
        results.set_resizable (false);
 
        results.run ();
@@ -2512,7 +2842,7 @@ was not able to keep up with Ardour.\n\
 Specifically, it failed to write data to disk\n\
 quickly enough to keep up with recording.\n"));
                msg->signal_response().connect (bind (mem_fun (*this, &ARDOUR_UI::disk_speed_dialog_gone), msg));
-               msg->show_all ();
+               msg->show ();
        }
 }
 
@@ -2530,7 +2860,7 @@ was not able to keep up with Ardour.\n\
 Specifically, it failed to read data from disk\n\
 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 ();
+               msg->show ();
        } 
 }
 
@@ -2559,7 +2889,8 @@ what you would like to do.\n"));
        dialog.add_button (_("Ignore crash data"), RESPONSE_REJECT);
 
        dialog.set_position (WIN_POS_CENTER);
-       dialog.show_all ();
+       message.show();
+       //dialog.get_vbox()->show();
        
        switch (dialog.run ()) {
        case RESPONSE_ACCEPT:
@@ -2609,8 +2940,10 @@ ARDOUR_UI::cmdline_new_session (string path)
                path = str;
        }
 
-       new_session (path);
-       
+       get_session_parameters (path, false, true);
+
+       _will_create_new_session_automatically = false; /* done it */
+
        return FALSE; /* don't call it again */
 }
 
@@ -2626,6 +2959,9 @@ ARDOUR_UI::use_config ()
        case FormatInt24:
                act = ActionManager::get_action (X_("options"), X_("FileDataFormat24bit"));
                break;
+       case FormatInt16:
+               act = ActionManager::get_action (X_("options"), X_("FileDataFormat16bit"));
+               break;
        }
 
        if (act) {
@@ -2718,7 +3054,7 @@ void
 ARDOUR_UI::save_keybindings ()
 {
        if (can_save_keybindings) {
-               AccelMap::save (keybindings_path);
+               AccelMap::save (user_keybindings_path);
        } 
 }
 
@@ -2778,7 +3114,7 @@ ARDOUR_UI::TransportControllable::set_value (float val)
                return;
        }
 
-       char *action = 0;
+       const char *action = 0;
 
        switch (type) {
        case Roll:
@@ -2858,6 +3194,12 @@ ARDOUR_UI::setup_profile ()
        if (gdk_screen_width() < 1200) {
                Profile->set_small_screen ();
        }
+
+
+       if (getenv ("ARDOUR_SAE")) {
+               Profile->set_sae ();
+               Profile->set_single_package ();
+       }
 }
 
 void