first pass on track mode switch; fixes to dangling region refs after capture; destroy...
[ardour.git] / gtk2_ardour / ardour_ui.cc
1 /*
2     Copyright (C) 1999-2002 Paul Davis 
3
4     This program is free software; you can redistribute it and/or modify
5     it under the terms of the GNU General Public License as published by
6     the Free Software Foundation; either version 2 of the License, or
7     (at your option) any later version.
8
9     This program is distributed in the hope that it will be useful,
10     but WITHOUT ANY WARRANTY; without even the implied warranty of
11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12     GNU General Public License for more details.
13
14     You should have received a copy of the GNU General Public License
15     along with this program; if not, write to the Free Software
16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17
18     $Id$
19 */
20
21 #include <algorithm>
22 #include <cmath>
23 #include <fcntl.h>
24 #include <signal.h>
25 #include <unistd.h>
26 #include <cerrno>
27 #include <fstream>
28
29 #include <iostream>
30
31 #include <gtkmm/messagedialog.h>
32 #include <gtkmm/accelmap.h>
33
34 #include <pbd/error.h>
35 #include <pbd/compose.h>
36 #include <pbd/pathscanner.h>
37 #include <pbd/failed_constructor.h>
38 #include <gtkmm2ext/gtk_ui.h>
39 #include <gtkmm2ext/utils.h>
40 #include <gtkmm2ext/click_box.h>
41 #include <gtkmm2ext/fastmeter.h>
42 #include <gtkmm2ext/stop_signal.h>
43 #include <gtkmm2ext/popup.h>
44
45 #include <midi++/port.h>
46 #include <midi++/mmc.h>
47
48 #include <ardour/ardour.h>
49 #include <ardour/session_route.h>
50 #include <ardour/port.h>
51 #include <ardour/audioengine.h>
52 #include <ardour/playlist.h>
53 #include <ardour/utils.h>
54 #include <ardour/audio_diskstream.h>
55 #include <ardour/audiofilesource.h>
56 #include <ardour/recent_sessions.h>
57 #include <ardour/port.h>
58 #include <ardour/audio_track.h>
59
60 #include "actions.h"
61 #include "ardour_ui.h"
62 #include "public_editor.h"
63 #include "audio_clock.h"
64 #include "keyboard.h"
65 #include "mixer_ui.h"
66 #include "prompter.h"
67 #include "opts.h"
68 #include "keyboard_target.h"
69 #include "add_route_dialog.h"
70 #include "new_session_dialog.h"
71 #include "about.h"
72 #include "utils.h"
73 #include "gui_thread.h"
74 #include "color_manager.h"
75
76 #include "i18n.h"
77
78 using namespace ARDOUR;
79 using namespace PBD;
80 using namespace Gtkmm2ext;
81 using namespace Gtk;
82 using namespace sigc;
83
84 ARDOUR_UI *ARDOUR_UI::theArdourUI = 0;
85
86 sigc::signal<void,bool> ARDOUR_UI::Blink;
87 sigc::signal<void>      ARDOUR_UI::RapidScreenUpdate;
88 sigc::signal<void>      ARDOUR_UI::SuperRapidScreenUpdate;
89 sigc::signal<void,nframes_t> ARDOUR_UI::Clock;
90
91 ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[], string rcfile)
92
93         : Gtkmm2ext::UI ("ardour", argcp, argvp, rcfile),
94           
95           primary_clock (X_("TransportClockDisplay"), true, false, true),
96           secondary_clock (X_("SecondaryClockDisplay"), true, false, true),
97           preroll_clock (X_("PreRollClock"), true, true),
98           postroll_clock (X_("PostRollClock"), true, true),
99
100           /* adjuster table */
101
102           adjuster_table (3, 3),
103
104           /* preroll stuff */
105
106           preroll_button (_("pre\nroll")),
107           postroll_button (_("post\nroll")),
108
109           /* big clock */
110
111           big_clock ("BigClockDisplay", true),
112
113           /* transport */
114
115           time_master_button (_("time\nmaster")),
116
117           shuttle_units_button (_("% ")),
118
119           punch_in_button (_("Punch In")),
120           punch_out_button (_("Punch Out")),
121           auto_return_button (_("Auto Return")),
122           auto_play_button (_("Autuo Play")),
123           auto_input_button (_("Auto Input")),
124           click_button (_("Click")),
125           auditioning_alert_button (_("AUDITION")),
126           solo_alert_button (_("SOLO")),
127           shown_flag (false)
128 {
129         using namespace Gtk::Menu_Helpers;
130
131         Gtkmm2ext::init();
132         
133         about = 0;
134
135         if (theArdourUI == 0) {
136                 theArdourUI = this;
137         }
138
139         /* load colors */
140
141         color_manager = new ColorManager();
142
143         std::string color_file = ARDOUR::find_config_file("ardour.colors");
144         
145         color_manager->load (color_file);
146
147         editor = 0;
148         mixer = 0;
149         session = 0;
150         _session_is_new = false;
151         big_clock_window = 0;
152         session_selector_window = 0;
153         last_key_press_time = 0;
154         connection_editor = 0;
155         add_route_dialog = 0;
156         route_params = 0;
157         option_editor = 0;
158         location_ui = 0;
159         sfdb = 0;
160         open_session_selector = 0;
161         have_configure_timeout = false;
162         have_disk_overrun_displayed = false;
163         have_disk_underrun_displayed = false;
164         _will_create_new_session_automatically = false;
165         session_loaded = false;
166         last_speed_displayed = -1.0f;
167
168         last_configure_time.tv_sec = 0;
169         last_configure_time.tv_usec = 0;
170
171         shuttle_grabbed = false;
172         shuttle_fract = 0.0;
173         shuttle_max_speed = 8.0f;
174
175         shuttle_style_menu = 0;
176         shuttle_unit_menu = 0;
177
178         gettimeofday (&last_peak_grab, 0);
179         gettimeofday (&last_shuttle_request, 0);
180
181         ARDOUR::Diskstream::DiskOverrun.connect (mem_fun(*this, &ARDOUR_UI::disk_overrun_handler));
182         ARDOUR::Diskstream::DiskUnderrun.connect (mem_fun(*this, &ARDOUR_UI::disk_underrun_handler));
183
184         /* handle pending state with a dialog */
185
186         ARDOUR::Session::AskAboutPendingState.connect (mem_fun(*this, &ARDOUR_UI::pending_state_dialog));
187
188         /* have to wait for AudioEngine and Configuration before proceeding */
189 }
190
191 void
192 ARDOUR_UI::set_engine (AudioEngine& e)
193 {
194         engine = &e;
195
196         engine->Stopped.connect (mem_fun(*this, &ARDOUR_UI::engine_stopped));
197         engine->Running.connect (mem_fun(*this, &ARDOUR_UI::engine_running));
198         engine->Halted.connect (mem_fun(*this, &ARDOUR_UI::engine_halted));
199         engine->SampleRateChanged.connect (mem_fun(*this, &ARDOUR_UI::update_sample_rate));
200
201         ActionManager::init ();
202         new_session_dialog = new NewSessionDialog();
203
204         _tooltips.enable();
205
206         keyboard = new Keyboard;
207
208         if (setup_windows ()) {
209                 throw failed_constructor ();
210         }
211
212         if (GTK_ARDOUR::show_key_actions) {
213                 vector<string> names;
214                 vector<string> paths;
215                 vector<string> keys;
216                 vector<AccelKey> bindings;
217
218                 ActionManager::get_all_actions (names, paths, keys, bindings);
219
220                 vector<string>::iterator n;
221                 vector<string>::iterator k;
222                 for (n = names.begin(), k = keys.begin(); n != names.end(); ++n, ++k) {
223                         cerr << "Action: " << (*n) << " bound to " << (*k) << endl;
224                 }
225
226                 exit (0);
227         }
228
229         /* start with timecode, metering enabled
230         */
231         
232         blink_timeout_tag = -1;
233
234         /* the global configuration object is now valid */
235
236         use_config ();
237
238         /* this being a GUI and all, we want peakfiles */
239
240         AudioFileSource::set_build_peakfiles (true);
241         AudioFileSource::set_build_missing_peakfiles (true);
242
243         if (AudioSource::start_peak_thread ()) {
244                 throw failed_constructor();
245         }
246
247         /* start the time-of-day-clock */
248         
249         update_wall_clock ();
250         Glib::signal_timeout().connect (mem_fun(*this, &ARDOUR_UI::update_wall_clock), 60000);
251
252         update_disk_space ();
253         update_cpu_load ();
254         update_sample_rate (engine->frame_rate());
255
256         starting.connect (mem_fun(*this, &ARDOUR_UI::startup));
257         stopping.connect (mem_fun(*this, &ARDOUR_UI::shutdown));
258 }
259
260 ARDOUR_UI::~ARDOUR_UI ()
261 {
262         save_ardour_state ();
263
264         if (keyboard) {
265                 delete keyboard;
266         }
267
268         if (editor) {
269                 delete editor;
270         }
271
272         if (mixer) {
273                 delete mixer;
274         }
275
276         if (add_route_dialog) {
277                 delete add_route_dialog;
278         }
279
280         AudioSource::stop_peak_thread ();
281 }
282
283 gint
284 ARDOUR_UI::configure_timeout ()
285 {
286         struct timeval now;
287         struct timeval diff;
288
289         if (last_configure_time.tv_sec == 0 && last_configure_time.tv_usec == 0) {
290                 /* no configure events yet */
291                 return TRUE;
292         }
293
294         gettimeofday (&now, 0);
295         timersub (&now, &last_configure_time, &diff);
296
297         /* force a gap of 0.5 seconds since the last configure event
298          */
299
300         if (diff.tv_sec == 0 && diff.tv_usec < 500000) {
301                 return TRUE;
302         } else {
303                 have_configure_timeout = false;
304                 save_ardour_state ();
305                 return FALSE;
306         }
307 }
308
309 gboolean
310 ARDOUR_UI::configure_handler (GdkEventConfigure* conf)
311 {
312         if (have_configure_timeout) {
313                 gettimeofday (&last_configure_time, 0);
314         } else {
315                 Glib::signal_timeout().connect (mem_fun(*this, &ARDOUR_UI::configure_timeout), 100);
316                 have_configure_timeout = true;
317         }
318                 
319         return FALSE;
320 }
321
322 void
323 ARDOUR_UI::save_ardour_state ()
324 {
325         if (!keyboard || !mixer || !editor) {
326                 return;
327         }
328         
329         /* XXX this is all a bit dubious. add_extra_xml() uses
330            a different lifetime model from add_instant_xml().
331         */
332
333         XMLNode* node = new XMLNode (keyboard->get_state());
334         Config->add_extra_xml (*node);
335         Config->save_state();
336
337         XMLNode enode(static_cast<Stateful*>(editor)->get_state());
338         XMLNode mnode(mixer->get_state());
339
340         if (session) {
341                 session->add_instant_xml (enode, session->path());
342                 session->add_instant_xml (mnode, session->path());
343         } else {
344                 Config->add_instant_xml (enode, get_user_ardour_path());
345                 Config->add_instant_xml (mnode, get_user_ardour_path());
346         }
347
348         /* keybindings */
349
350         AccelMap::save ("ardour.saved_bindings");
351 }
352
353 void
354 ARDOUR_UI::startup ()
355 {
356         /* Once the UI is up and running, start the audio engine. Doing
357            this before the UI is up and running can cause problems
358            when not running with SCHED_FIFO, because the amount of
359            CPU and disk work needed to get the UI started can interfere
360            with the scheduling of the audio thread.
361         */
362
363         Glib::signal_idle().connect (mem_fun(*this, &ARDOUR_UI::start_engine));
364 }
365
366 void
367 ARDOUR_UI::finish()
368 {
369         if (session && session->dirty()) {
370                 switch (ask_about_saving_session(_("quit"))) {
371                 case -1:
372                         return;
373                         break;
374                 case 1:
375                         /* use the default name */
376                         if (save_state_canfail ("")) {
377                                 /* failed - don't quit */
378                                 MessageDialog msg (*editor, 
379                                                _("\
380 Ardour was unable to save your session.\n\n\
381 If you still wish to quit, please use the\n\n\
382 \"Just quit\" option."));
383                                 msg.run ();
384                                 return;
385                         }
386                         break;
387                 case 0:
388                         break;
389                 }
390         }
391         Config->save_state();
392         quit ();
393 }
394
395 int
396 ARDOUR_UI::ask_about_saving_session (const string & what)
397 {
398         ArdourDialog window (_("ardour: save session?"));
399         Gtk::HBox dhbox;  // the hbox for the image and text
400         Gtk::Label  prompt_label;
401         Gtk::Image* dimage = manage (new Gtk::Image(Stock::DIALOG_WARNING,  Gtk::ICON_SIZE_DIALOG));
402
403         string msg;
404
405         msg = string_compose(_("Don't %1"), what);
406         window.add_button (msg, RESPONSE_REJECT);
407         msg = string_compose(_("Just %1"), what);
408         window.add_button (msg, RESPONSE_APPLY);
409         msg = string_compose(_("Save and %1"), what);
410         window.add_button (msg, RESPONSE_ACCEPT);
411
412         window.set_default_response (RESPONSE_ACCEPT);
413
414         Gtk::Button noquit_button (msg);
415         noquit_button.set_name ("EditorGTKButton");
416
417         string prompt;
418         string type;
419
420         if (session->snap_name() == session->name()) {
421                 type = _("session");
422         } else {
423                 type = _("snapshot");
424         }
425         prompt = string_compose(_("The %1\"%2\"\nhas not been saved.\n\nAny changes made this time\nwill be lost unless you save it.\n\nWhat do you want to do?"), 
426                          type, session->snap_name());
427         
428         prompt_label.set_text (prompt);
429         prompt_label.set_name (X_("PrompterLabel"));
430         prompt_label.set_alignment(ALIGN_LEFT, ALIGN_TOP);
431
432         dimage->set_alignment(ALIGN_CENTER, ALIGN_TOP)
433 ;
434         dhbox.set_homogeneous (false);
435         dhbox.pack_start (*dimage, false, false, 5);
436         dhbox.pack_start (prompt_label, true, false, 5);
437         window.get_vbox()->pack_start (dhbox);
438
439         window.set_name (_("Prompter"));
440         window.set_position (Gtk::WIN_POS_MOUSE);
441         window.set_modal (true);
442         window.set_resizable (false);
443         window.show_all ();
444
445         save_the_session = 0;
446
447         editor->ensure_float (window);
448
449         ResponseType r = (ResponseType) window.run();
450
451         window.hide ();
452
453         switch (r) {
454         case RESPONSE_ACCEPT: // save and get out of here
455                 return 1;
456         case RESPONSE_APPLY:  // get out of here
457                 return 0;
458         default:
459                 break;
460         }
461
462         return -1;
463 }
464         
465 gint
466 ARDOUR_UI::every_second ()
467 {
468         update_cpu_load ();
469         update_buffer_load ();
470         update_disk_space ();
471         return TRUE;
472 }
473
474 gint
475 ARDOUR_UI::every_point_one_seconds ()
476 {
477         update_speed_display ();
478         RapidScreenUpdate(); /* EMIT_SIGNAL */
479         return TRUE;
480 }
481
482 gint
483 ARDOUR_UI::every_point_zero_one_seconds ()
484 {
485         SuperRapidScreenUpdate(); /* EMIT_SIGNAL */
486         return TRUE;
487 }
488
489 void
490 ARDOUR_UI::update_sample_rate (nframes_t ignored)
491 {
492         char buf[32];
493
494         ENSURE_GUI_THREAD (bind (mem_fun(*this, &ARDOUR_UI::update_sample_rate), ignored));
495
496         if (!engine->connected()) {
497
498                 snprintf (buf, sizeof (buf), _("disconnected"));
499
500         } else {
501
502                 nframes_t rate = engine->frame_rate();
503                 
504                 if (fmod (rate, 1000.0) != 0.0) {
505                         snprintf (buf, sizeof (buf), _("%.1f kHz / %4.1f msecs"), 
506                                   (float) rate/1000.0f,
507                                   (engine->frames_per_cycle() / (float) rate) * 1000.0f);
508                 } else {
509                         snprintf (buf, sizeof (buf), _("%u kHz / %4.1f msecs"), 
510                                   rate/1000,
511                                   (engine->frames_per_cycle() / (float) rate) * 1000.0f);
512                 }
513         }
514
515         sample_rate_label.set_text (buf);
516 }
517
518 void
519 ARDOUR_UI::update_cpu_load ()
520 {
521         char buf[32];
522         snprintf (buf, sizeof (buf), _("DSP: %.1f%%"), engine->get_cpu_load());
523         cpu_load_label.set_text (buf);
524 }
525
526 void
527 ARDOUR_UI::update_buffer_load ()
528 {
529         char buf[64];
530
531         if (session) {
532                 snprintf (buf, sizeof (buf), _("Buffers p:%" PRIu32 "%% c:%" PRIu32 "%%"), 
533                           session->playback_load(), session->capture_load());
534                 buffer_load_label.set_text (buf);
535         } else {
536                 buffer_load_label.set_text ("");
537         }
538 }
539
540 void
541 ARDOUR_UI::count_recenabled_streams (Route& route)
542 {
543         Track* track = dynamic_cast<Track*>(&route);
544         if (track && track->diskstream()->record_enabled()) {
545                 rec_enabled_streams += track->n_inputs();
546         }
547 }
548
549 void
550 ARDOUR_UI::update_disk_space()
551 {
552         if (session == 0) {
553                 return;
554         }
555
556         nframes_t frames = session->available_capture_duration();
557         char buf[64];
558
559         if (frames == max_frames) {
560                 strcpy (buf, _("Disk: 24hrs+"));
561         } else {
562                 int hrs;
563                 int mins;
564                 int secs;
565                 nframes_t fr = session->frame_rate();
566                 
567                 rec_enabled_streams = 0;
568                 session->foreach_route (this, &ARDOUR_UI::count_recenabled_streams);
569                 
570                 if (rec_enabled_streams) {
571                         frames /= rec_enabled_streams;
572                 }
573                 
574                 hrs  = frames / (fr * 3600);
575                 frames -= hrs * fr * 3600;
576                 mins = frames / (fr * 60);
577                 frames -= mins * fr * 60;
578                 secs = frames / fr;
579                 
580                 snprintf (buf, sizeof(buf), _("Disk: %02dh:%02dm:%02ds"), hrs, mins, secs);
581         }
582
583         disk_space_label.set_text (buf);
584 }                 
585
586 gint
587 ARDOUR_UI::update_wall_clock ()
588 {
589         time_t now;
590         struct tm *tm_now;
591         char buf[16];
592
593         time (&now);
594         tm_now = localtime (&now);
595
596         sprintf (buf, "%02d:%02d", tm_now->tm_hour, tm_now->tm_min);
597         wall_clock_label.set_text (buf);
598
599         return TRUE;
600 }
601 void
602 ARDOUR_UI::control_methods_adjusted ()
603
604 {
605         int which_method;
606
607         which_method = (int) online_control_button->adjustment.get_value();
608         switch (which_method) {
609         case 0:
610                 allow_mmc_and_local ();
611                 break;
612         case 1:
613                 allow_mmc_only ();
614                 break;
615         case 2:
616                 allow_local_only ();
617                 break;
618         default:
619                 fatal << _("programming error: impossible control method") << endmsg;
620         }
621 }
622         
623
624 void
625 ARDOUR_UI::mmc_device_id_adjusted ()
626
627 {
628 #if 0
629         if (mmc) {
630                 int dev_id = (int) mmc_id_button->adjustment.get_value();
631                 mmc->set_device_id (dev_id);
632         }
633 #endif
634 }
635
636 gint
637 ARDOUR_UI::session_menu (GdkEventButton *ev)
638 {
639         session_popup_menu->popup (0, 0);
640         return TRUE;
641 }
642
643 void
644 ARDOUR_UI::redisplay_recent_sessions ()
645 {
646         vector<string *> *sessions;
647         vector<string *>::iterator i;
648         RecentSessionsSorter cmp;
649         
650         recent_session_display.set_model (Glib::RefPtr<TreeModel>(0));
651         recent_session_model->clear ();
652
653         RecentSessions rs;
654         ARDOUR::read_recent_sessions (rs);
655
656         if (rs.empty()) {
657                 recent_session_display.set_model (recent_session_model);
658                 return;
659         }
660
661         /* sort them alphabetically */
662         sort (rs.begin(), rs.end(), cmp);
663         sessions = new vector<string*>;
664
665         for (RecentSessions::iterator i = rs.begin(); i != rs.end(); ++i) {
666                 sessions->push_back (new string ((*i).second));
667         }
668
669         for (i = sessions->begin(); i != sessions->end(); ++i) {
670
671                 vector<string*>* states;
672                 vector<const gchar*> item;
673                 string fullpath = *(*i);
674                 
675                 /* remove any trailing / */
676
677                 if (fullpath[fullpath.length()-1] == '/') {
678                         fullpath = fullpath.substr (0, fullpath.length()-1);
679                 }
680
681                 /* now get available states for this session */
682
683                 if ((states = Session::possible_states (fullpath)) == 0) {
684                         /* no state file? */
685                         continue;
686                 }
687
688                 TreeModel::Row row = *(recent_session_model->append());
689
690                 row[recent_session_columns.visible_name] = Glib::path_get_basename (fullpath);
691                 row[recent_session_columns.fullpath] = fullpath;
692
693                 if (states->size() > 1) {
694
695                         /* add the children */
696                         
697                         for (vector<string*>::iterator i2 = states->begin(); i2 != states->end(); ++i2) {
698                                 
699                                 TreeModel::Row child_row = *(recent_session_model->append (row.children()));
700
701                                 child_row[recent_session_columns.visible_name] = **i2;
702                                 child_row[recent_session_columns.fullpath] = fullpath;
703
704                                 delete *i2;
705                         }
706                 }
707
708                 delete states;
709         }
710
711         recent_session_display.set_model (recent_session_model);
712         delete sessions;
713 }
714
715 void
716 ARDOUR_UI::build_session_selector ()
717 {
718         session_selector_window = new ArdourDialog ("session selector");
719         
720         Gtk::ScrolledWindow *scroller = manage (new Gtk::ScrolledWindow);
721         
722         session_selector_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
723         session_selector_window->add_button (Stock::OPEN, RESPONSE_ACCEPT);
724         session_selector_window->set_default_response (RESPONSE_ACCEPT);
725         recent_session_model = TreeStore::create (recent_session_columns);
726         recent_session_display.set_model (recent_session_model);
727         recent_session_display.append_column (_("Recent Sessions"), recent_session_columns.visible_name);
728         recent_session_display.set_headers_visible (false);
729         recent_session_display.get_selection()->set_mode (SELECTION_SINGLE);
730
731         recent_session_display.signal_row_activated().connect (mem_fun (*this, &ARDOUR_UI::recent_session_row_activated));
732
733         scroller->add (recent_session_display);
734         scroller->set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
735
736         session_selector_window->set_name ("SessionSelectorWindow");
737         session_selector_window->set_size_request (200, 400);
738         session_selector_window->get_vbox()->pack_start (*scroller);
739         session_selector_window->show_all_children();
740 }
741
742 void
743 ARDOUR_UI::recent_session_row_activated (const TreePath& path, TreeViewColumn* col)
744 {
745         session_selector_window->response (RESPONSE_ACCEPT);
746 }
747
748 void
749 ARDOUR_UI::open_recent_session ()
750 {
751         /* popup selector window */
752
753         if (session_selector_window == 0) {
754                 build_session_selector ();
755         }
756
757         redisplay_recent_sessions ();
758
759         ResponseType r = (ResponseType) session_selector_window->run ();
760
761         session_selector_window->hide();
762
763         switch (r) {
764         case RESPONSE_ACCEPT:
765                 break;
766         default:
767                 return;
768         }
769
770         Gtk::TreeModel::iterator i = recent_session_display.get_selection()->get_selected();
771
772         if (i == recent_session_model->children().end()) {
773                 return;
774         }
775         
776         Glib::ustring path = (*i)[recent_session_columns.fullpath];
777         Glib::ustring state = (*i)[recent_session_columns.visible_name];
778
779         _session_is_new = false;
780
781         load_session (path, state);
782 }
783
784 bool
785 ARDOUR_UI::filter_ardour_session_dirs (const FileFilter::Info& info) 
786 {
787         struct stat statbuf;
788
789         if (stat (info.filename.c_str(), &statbuf) != 0) {
790                 return false;
791         }
792
793         if (!S_ISDIR(statbuf.st_mode)) {
794                 return false;
795         }
796
797         // XXX Portability
798         
799         string session_file = info.filename;
800         session_file += '/';
801         session_file += Glib::path_get_basename (info.filename);
802         session_file += ".ardour";
803         
804         if (stat (session_file.c_str(), &statbuf) != 0) {
805                 return false;
806         }
807
808         return S_ISREG (statbuf.st_mode);
809 }
810
811 void
812 ARDOUR_UI::open_session ()
813 {
814         /* popup selector window */
815
816         if (open_session_selector == 0) {
817
818                 /* ardour sessions are folders */
819
820                 open_session_selector = new Gtk::FileChooserDialog (_("open session"), FILE_CHOOSER_ACTION_OPEN);
821                 open_session_selector->add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
822                 open_session_selector->add_button (Gtk::Stock::OPEN, Gtk::RESPONSE_ACCEPT);
823
824                 FileFilter session_filter;
825                 session_filter.add_pattern ("*.ardour");
826                 session_filter.set_name (_("Ardour sessions"));
827                 open_session_selector->add_filter (session_filter);
828                 open_session_selector->set_filter (session_filter);
829         }
830
831         int response = open_session_selector->run();
832         open_session_selector->hide ();
833
834         switch (response) {
835         case RESPONSE_ACCEPT:
836                 break;
837         default:
838                 open_session_selector->hide();
839                 return;
840         }
841
842         open_session_selector->hide();
843         string session_path = open_session_selector->get_filename();
844         string path, name;
845         bool isnew;
846
847         if (session_path.length() > 0) {
848                 if (Session::find_session (session_path, path, name, isnew) == 0) {
849                         _session_is_new = isnew;
850                         load_session (path, name);
851                 }
852         }
853 }
854
855
856 void
857 ARDOUR_UI::session_add_midi_track ()
858 {
859         cerr << _("Patience is a virtue.\n");
860 }
861
862 void
863 ARDOUR_UI::session_add_audio_route (bool track, int32_t input_channels, int32_t output_channels, ARDOUR::TrackMode mode, uint32_t how_many)
864 {
865         list<boost::shared_ptr<AudioTrack> > tracks;
866         Session::RouteList routes;
867
868         if (session == 0) {
869                 warning << _("You cannot add a track or bus without a session already loaded.") << endmsg;
870                 return;
871         }
872
873         try { 
874                 if (track) {
875                         tracks = session->new_audio_track (input_channels, output_channels, mode, how_many);
876
877                         if (tracks.size() != how_many) {
878                                 if (how_many == 1) {
879                                         error << _("could not create a new audio track") << endmsg;
880                                 } else {
881                                         error << string_compose (_("could not create %1 new audio tracks"), how_many) << endmsg;
882                                 }
883                         }
884
885                 } else {
886
887                         routes = session->new_audio_route (input_channels, output_channels, how_many);
888
889                         if (routes.size() != how_many) {
890                                 if (how_many == 1) {
891                                         error << _("could not create a new audio track") << endmsg;
892                                 } else {
893                                         error << string_compose (_("could not create %1 new audio tracks"), how_many) << endmsg;
894                                 }
895                         }
896                 }
897                 
898 #if CONTROLOUTS
899                 if (need_control_room_outs) {
900                         pan_t pans[2];
901                         
902                         pans[0] = 0.5;
903                         pans[1] = 0.5;
904                         
905                         route->set_stereo_control_outs (control_lr_channels);
906                         route->control_outs()->set_stereo_pan (pans, this);
907                 }
908 #endif /* CONTROLOUTS */
909         }
910
911         catch (...) {
912                 MessageDialog msg (*editor, 
913                                    _("There are insufficient JACK ports available\n\
914 to create a new track or bus.\n\
915 You should save Ardour, exit and\n\
916 restart JACK with more ports."));
917                 msg.run ();
918         }
919 }
920
921 void
922 ARDOUR_UI::do_transport_locate (nframes_t new_position)
923 {
924         nframes_t _preroll = 0;
925
926         if (session) {
927                 // XXX CONFIG_CHANGE FIX - requires AnyTime handling
928                 // _preroll = session->convert_to_frames_at (new_position, Config->get_preroll());
929
930                 if (new_position > _preroll) {
931                         new_position -= _preroll;
932                 } else {
933                         new_position = 0;
934                 }
935
936                 session->request_locate (new_position);
937         }
938 }
939
940 void
941 ARDOUR_UI::transport_goto_start ()
942 {
943         if (session) {
944                 session->goto_start();
945
946                 
947                 /* force displayed area in editor to start no matter
948                    what "follow playhead" setting is.
949                 */
950                 
951                 if (editor) {
952                         editor->reposition_x_origin (session->current_start_frame());
953                 }
954         }
955 }
956
957 void
958 ARDOUR_UI::transport_goto_zero ()
959 {
960         if (session) {
961                 session->request_locate (0);
962
963                 
964                 /* force displayed area in editor to start no matter
965                    what "follow playhead" setting is.
966                 */
967                 
968                 if (editor) {
969                         editor->reposition_x_origin (0);
970                 }
971         }
972 }
973
974 void
975 ARDOUR_UI::transport_goto_end ()
976 {
977         if (session) {
978                 nframes_t frame = session->current_end_frame();
979                 session->request_locate (frame);
980
981                 /* force displayed area in editor to start no matter
982                    what "follow playhead" setting is.
983                 */
984                 
985                 if (editor) {
986                         editor->reposition_x_origin (frame);
987                 }
988         }
989 }
990
991 void
992 ARDOUR_UI::transport_stop ()
993 {
994         if (!session) {
995                 return;
996         }
997
998         if (session->is_auditioning()) {
999                 session->cancel_audition ();
1000                 return;
1001         }
1002         
1003         if (session->get_play_loop ()) {
1004                 session->request_play_loop (false);
1005         }
1006         
1007         session->request_stop ();
1008 }
1009
1010 void
1011 ARDOUR_UI::transport_stop_and_forget_capture ()
1012 {
1013         if (session) {
1014                 session->request_stop (true);
1015         }
1016 }
1017
1018 void
1019 ARDOUR_UI::remove_last_capture()
1020 {
1021         if (editor) {
1022                 editor->remove_last_capture();
1023         }
1024 }
1025
1026 void
1027 ARDOUR_UI::transport_record ()
1028 {
1029         if (session) {
1030                 switch (session->record_status()) {
1031                 case Session::Disabled:
1032                         if (session->ntracks() == 0) {
1033                                 MessageDialog msg (*editor, _("Please create 1 or more track\nbefore trying to record.\nCheck the Session menu."));
1034                                 msg.run ();
1035                                 return;
1036                         }
1037                         session->maybe_enable_record ();
1038                         break;
1039                 case Session::Recording:
1040                 case Session::Enabled:
1041                         session->disable_record (true);
1042                 }
1043         }
1044 }
1045
1046 void
1047 ARDOUR_UI::transport_roll ()
1048 {
1049         bool rolling;
1050
1051         if (!session) {
1052                 return;
1053         }
1054
1055         rolling = session->transport_rolling ();
1056
1057         if (session->get_play_loop()) {
1058                 session->request_play_loop (false);
1059                 auto_loop_button.set_active (false);
1060                 roll_button.set_active (true);
1061         } else if (session->get_play_range ()) {
1062                 session->request_play_range (false);
1063                 play_selection_button.set_active (false);
1064         } else if (rolling) {
1065                 session->request_locate (session->last_transport_start(), true);
1066         }
1067
1068         session->request_transport_speed (1.0f);
1069 }
1070
1071 void
1072 ARDOUR_UI::transport_loop()
1073 {
1074         if (session) {
1075                 if (session->get_play_loop()) {
1076                         if (session->transport_rolling()) {
1077                                 Location * looploc = session->locations()->auto_loop_location();
1078                                 if (looploc) {
1079                                         session->request_locate (looploc->start(), true);
1080                                 }
1081                         }
1082                 }
1083                 else {
1084                         session->request_play_loop (true);
1085                 }
1086         }
1087 }
1088
1089 void
1090 ARDOUR_UI::transport_play_selection ()
1091 {
1092         if (!session) {
1093                 return;
1094         }
1095
1096         if (!session->get_play_range()) {
1097                 session->request_stop ();
1098         }
1099
1100         editor->play_selection ();
1101 }
1102
1103 void
1104 ARDOUR_UI::transport_rewind (int option)
1105 {
1106         float current_transport_speed;
1107  
1108         if (session) {
1109                 current_transport_speed = session->transport_speed();
1110                 
1111                 if (current_transport_speed >= 0.0f) {
1112                         switch (option) {
1113                         case 0:
1114                                 session->request_transport_speed (-1.0f);
1115                                 break;
1116                         case 1:
1117                                 session->request_transport_speed (-4.0f);
1118                                 break;
1119                         case -1:
1120                                 session->request_transport_speed (-0.5f);
1121                                 break;
1122                         }
1123                 } else {
1124                         /* speed up */
1125                         session->request_transport_speed (current_transport_speed * 1.5f);
1126                 }
1127         }
1128 }
1129
1130 void
1131 ARDOUR_UI::transport_forward (int option)
1132 {
1133         float current_transport_speed;
1134         
1135         if (session) {
1136                 current_transport_speed = session->transport_speed();
1137                 
1138                 if (current_transport_speed <= 0.0f) {
1139                         switch (option) {
1140                         case 0:
1141                                 session->request_transport_speed (1.0f);
1142                                 break;
1143                         case 1:
1144                                 session->request_transport_speed (4.0f);
1145                                 break;
1146                         case -1:
1147                                 session->request_transport_speed (0.5f);
1148                                 break;
1149                         }
1150                 } else {
1151                         /* speed up */
1152                         session->request_transport_speed (current_transport_speed * 1.5f);
1153                 }
1154         }
1155 }
1156
1157 void
1158 ARDOUR_UI::toggle_record_enable (uint32_t dstream)
1159 {
1160         if (session == 0) {
1161                 return;
1162         }
1163
1164         boost::shared_ptr<Route> r;
1165         
1166         if ((r = session->route_by_remote_id (dstream)) != 0) {
1167
1168                 Track* t;
1169
1170                 if ((t = dynamic_cast<Track*>(r.get())) != 0) {
1171                         t->diskstream()->set_record_enabled (!t->diskstream()->record_enabled());
1172                 }
1173         }
1174         if (session == 0) {
1175                 return;
1176         }
1177 }
1178
1179 void
1180 ARDOUR_UI::queue_transport_change ()
1181 {
1182         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &ARDOUR_UI::map_transport_state));
1183 }
1184
1185 void
1186 ARDOUR_UI::map_transport_state ()
1187 {
1188         float sp = session->transport_speed();
1189
1190         if (sp == 1.0f) {
1191                 transport_rolling ();
1192         } else if (sp < 0.0f) {
1193                 transport_rewinding ();
1194         } else if (sp > 0.0f) {
1195                 transport_forwarding ();
1196         } else {
1197                 transport_stopped ();
1198         }
1199 }
1200
1201 void
1202 ARDOUR_UI::allow_local_only ()
1203 {
1204
1205 }
1206
1207 void
1208 ARDOUR_UI::allow_mmc_only ()
1209 {
1210
1211 }
1212
1213 void
1214 ARDOUR_UI::allow_mmc_and_local ()
1215 {
1216
1217 }
1218
1219 void
1220 ARDOUR_UI::GlobalClickBox::printer (char buf[32], Adjustment &adj, void *arg)
1221 {
1222         snprintf (buf, sizeof(buf), "%s", ((GlobalClickBox *) arg)->strings[
1223                 (int) adj.get_value()].c_str());
1224 }
1225
1226 void
1227 ARDOUR_UI::engine_stopped ()
1228 {
1229         ENSURE_GUI_THREAD (mem_fun(*this, &ARDOUR_UI::engine_stopped));
1230         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, false);
1231         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, true);
1232 }
1233
1234
1235 void
1236 ARDOUR_UI::engine_running ()
1237 {
1238         ENSURE_GUI_THREAD (mem_fun(*this, &ARDOUR_UI::engine_running));
1239         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, true);
1240         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, false);
1241 }
1242
1243 void
1244 ARDOUR_UI::engine_halted ()
1245 {
1246         ENSURE_GUI_THREAD (mem_fun(*this, &ARDOUR_UI::engine_halted));
1247
1248         ActionManager::set_sensitive (ActionManager::jack_sensitive_actions, false);
1249         ActionManager::set_sensitive (ActionManager::jack_opposite_sensitive_actions, true);
1250
1251         update_sample_rate (0);
1252
1253         MessageDialog msg (*editor, 
1254                            _("\
1255 JACK has either been shutdown or it\n\
1256 disconnected Ardour because Ardour\n\
1257 was not fast enough. You can save the\n\
1258 session and/or try to reconnect to JACK ."));
1259         msg.run ();
1260 }
1261
1262 int32_t
1263 ARDOUR_UI::do_engine_start ()
1264 {
1265         try { 
1266                 engine->start();
1267         }
1268
1269         catch (AudioEngine::PortRegistrationFailure& err) {
1270                 engine->stop ();
1271                 error << _("Unable to create all required ports")
1272                       << endmsg;
1273                 unload_session ();
1274                 return -1;
1275         }
1276
1277         catch (...) {
1278                 engine->stop ();
1279                 error << _("Unable to start the session running")
1280                       << endmsg;
1281                 unload_session ();
1282                 return -2;
1283         }
1284         
1285         return 0;
1286 }
1287
1288 gint
1289 ARDOUR_UI::start_engine ()
1290 {
1291         if (do_engine_start () == 0) {
1292                 if (session && _session_is_new) {
1293                         /* we need to retain initial visual 
1294                            settings for a new session 
1295                         */
1296                         session->save_state ("");
1297                 }
1298
1299                 /* there is too much going on, in too many threads, for us to 
1300                    end up with a clean session. So wait 1 second after loading,
1301                    and fix it up. its ugly, but until i come across a better
1302                    solution, its what we have.
1303                 */
1304
1305                 Glib::signal_timeout().connect (mem_fun(*this, &ARDOUR_UI::make_session_clean), 1000);
1306         }
1307
1308         return FALSE;
1309 }
1310
1311 void
1312 ARDOUR_UI::update_clocks ()
1313 {
1314          Clock (session->audible_frame()); /* EMIT_SIGNAL */
1315 }
1316
1317 void
1318 ARDOUR_UI::start_clocking ()
1319 {
1320         clock_signal_connection = RapidScreenUpdate.connect (mem_fun(*this, &ARDOUR_UI::update_clocks));
1321 }
1322
1323 void
1324 ARDOUR_UI::stop_clocking ()
1325 {
1326         clock_signal_connection.disconnect ();
1327 }
1328         
1329 void
1330 ARDOUR_UI::toggle_clocking ()
1331 {
1332 #if 0
1333         if (clock_button.get_active()) {
1334                 start_clocking ();
1335         } else {
1336                 stop_clocking ();
1337         }
1338 #endif
1339 }
1340
1341 gint
1342 ARDOUR_UI::_blink (void *arg)
1343
1344 {
1345         ((ARDOUR_UI *) arg)->blink ();
1346         return TRUE;
1347 }
1348
1349 void
1350 ARDOUR_UI::blink ()
1351 {
1352          Blink (blink_on = !blink_on); /* EMIT_SIGNAL */
1353 }
1354
1355 void
1356 ARDOUR_UI::start_blinking ()
1357 {
1358         /* Start the blink signal. Everybody with a blinking widget
1359            uses Blink to drive the widget's state.
1360         */
1361
1362         if (blink_timeout_tag < 0) {
1363                 blink_on = false;       
1364                 blink_timeout_tag = g_timeout_add (240, _blink, this);
1365         }
1366 }
1367
1368 void
1369 ARDOUR_UI::stop_blinking ()
1370 {
1371         if (blink_timeout_tag >= 0) {
1372                 g_source_remove (blink_timeout_tag);
1373                 blink_timeout_tag = -1;
1374         }
1375 }
1376
1377 void
1378 ARDOUR_UI::name_io_setup (AudioEngine& engine, 
1379                           string& buf,
1380                           IO& io,
1381                           bool in)
1382 {
1383         if (in) {
1384                 if (io.n_inputs() == 0) {
1385                         buf = _("none");
1386                         return;
1387                 }
1388                 
1389                 /* XXX we're not handling multiple ports yet. */
1390
1391                 const char **connections = io.input(0)->get_connections();
1392                 
1393                 if (connections == 0 || connections[0] == '\0') {
1394                         buf = _("off");
1395                 } else {
1396                         buf = connections[0];
1397                 }
1398
1399                 free (connections);
1400
1401         } else {
1402
1403                 if (io.n_outputs() == 0) {
1404                         buf = _("none");
1405                         return;
1406                 }
1407                 
1408                 /* XXX we're not handling multiple ports yet. */
1409
1410                 const char **connections = io.output(0)->get_connections();
1411                 
1412                 if (connections == 0 || connections[0] == '\0') {
1413                         buf = _("off");
1414                 } else {
1415                         buf = connections[0];
1416                 }
1417
1418                 free (connections);
1419         }
1420 }
1421
1422 void
1423 ARDOUR_UI::snapshot_session ()
1424 {
1425         ArdourPrompter prompter (true);
1426         string snapname;
1427         string now;
1428         time_t n;
1429
1430         time (&n);
1431         now = ctime (&n);
1432         now = now.substr (20, 4) + now.substr (3, 16) + " (" + now.substr (0, 3) + ")";
1433
1434         prompter.set_name ("Prompter");
1435         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
1436         prompter.set_prompt (_("Name of New Snapshot"));
1437         prompter.set_initial_text (now);
1438         
1439         switch (prompter.run()) {
1440         case RESPONSE_ACCEPT:
1441                 prompter.get_result (snapname);
1442                 if (snapname.length()){
1443                         save_state (snapname);
1444                 }
1445                 break;
1446
1447         default:
1448                 break;
1449         }
1450 }
1451
1452 void
1453 ARDOUR_UI::save_state (const string & name)
1454 {
1455         (void) save_state_canfail (name);
1456 }
1457                 
1458 int
1459 ARDOUR_UI::save_state_canfail (string name)
1460 {
1461         if (session) {
1462                 int ret;
1463
1464                 if (name.length() == 0) {
1465                         name = session->snap_name();
1466                 }
1467
1468                 if ((ret = session->save_state (name)) != 0) {
1469                         return ret;
1470                 }
1471         }
1472         save_ardour_state (); /* XXX cannot fail? yeah, right ... */
1473         return 0;
1474 }
1475
1476 void
1477 ARDOUR_UI::restore_state (string name)
1478 {
1479         if (session) {
1480                 if (name.length() == 0) {
1481                         name = session->name();
1482                 }
1483                 session->restore_state (name);
1484         }
1485 }
1486
1487 void
1488 ARDOUR_UI::primary_clock_value_changed ()
1489 {
1490         if (session) {
1491                 session->request_locate (primary_clock.current_time ());
1492         }
1493 }
1494
1495 void
1496 ARDOUR_UI::secondary_clock_value_changed ()
1497 {
1498         if (session) {
1499                 session->request_locate (secondary_clock.current_time ());
1500         }
1501 }
1502
1503 void
1504 ARDOUR_UI::rec_enable_button_blink (bool onoff, AudioDiskstream *dstream, Widget *w)
1505 {
1506         if (session && dstream && dstream->record_enabled()) {
1507
1508                 Session::RecordState rs;
1509                 
1510                 rs = session->record_status ();
1511
1512                 switch (rs) {
1513                 case Session::Disabled:
1514                 case Session::Enabled:
1515                         if (w->get_state() != STATE_SELECTED) {
1516                                 w->set_state (STATE_SELECTED);
1517                         }
1518                         break;
1519
1520                 case Session::Recording:
1521                         if (w->get_state() != STATE_ACTIVE) {
1522                                 w->set_state (STATE_ACTIVE);
1523                         }
1524                         break;
1525                 }
1526
1527         } else {
1528                 if (w->get_state() != STATE_NORMAL) {
1529                         w->set_state (STATE_NORMAL);
1530                 }
1531         }
1532 }
1533
1534 void
1535 ARDOUR_UI::transport_rec_enable_blink (bool onoff) 
1536 {
1537         if (session == 0) {
1538                 return;
1539         }
1540         
1541         switch (session->record_status()) {
1542         case Session::Enabled:
1543                 if (onoff) {
1544                         rec_button.set_state (1);
1545                 } else {
1546                         rec_button.set_state (0);
1547                 }
1548                 break;
1549
1550         case Session::Recording:
1551                 rec_button.set_state (2);
1552                 break;
1553
1554         default:
1555                 rec_button.set_state (0);
1556                 break;
1557         }
1558 }
1559
1560 gint
1561 ARDOUR_UI::hide_and_quit (GdkEventAny *ev, ArdourDialog *window)
1562 {
1563         window->hide();
1564         Gtk::Main::quit ();
1565         return TRUE;
1566 }
1567
1568 void
1569 ARDOUR_UI::start_keyboard_prefix ()
1570 {
1571         keyboard->start_prefix();
1572 }
1573
1574 void
1575 ARDOUR_UI::save_template ()
1576
1577 {
1578         ArdourPrompter prompter (true);
1579         string name;
1580
1581         prompter.set_name (X_("Prompter"));
1582         prompter.set_prompt (_("Name for mix template:"));
1583         prompter.set_initial_text(session->name() + _("-template"));
1584         prompter.add_button (Gtk::Stock::SAVE, Gtk::RESPONSE_ACCEPT);
1585
1586         switch (prompter.run()) {
1587         case RESPONSE_ACCEPT:
1588                 prompter.get_result (name);
1589                 
1590                 if (name.length()) {
1591                         session->save_template (name);
1592                 }
1593                 break;
1594
1595         default:
1596                 break;
1597         }
1598 }
1599
1600 void
1601 ARDOUR_UI::new_session (bool startup, std::string predetermined_path)
1602 {
1603         string session_name;
1604         string session_path;
1605
1606         int response = Gtk::RESPONSE_NONE;
1607
1608         new_session_dialog->set_modal(true);
1609         new_session_dialog->set_name (predetermined_path);
1610         new_session_dialog->reset_recent();
1611         new_session_dialog->show();
1612
1613         do {
1614                 response = new_session_dialog->run ();
1615                 
1616                 _session_is_new = false;
1617
1618                 if (response == Gtk::RESPONSE_CANCEL || response == Gtk::RESPONSE_DELETE_EVENT) {
1619
1620                         if (!session) {
1621                                 quit();
1622                         }
1623                         new_session_dialog->hide ();
1624                         return;
1625
1626                 } else if (response == Gtk::RESPONSE_NONE) {
1627
1628                         /* Clear was pressed */
1629                         new_session_dialog->reset();
1630
1631                 } else if (response == Gtk::RESPONSE_YES) {
1632
1633                         /* YES  == OPEN, but there's no enum for that */
1634
1635                         session_name = new_session_dialog->session_name();
1636                         
1637                         if (session_name.empty()) {
1638                                 response = Gtk::RESPONSE_NONE;
1639                                 continue;
1640                         } 
1641
1642                         if (session_name[0] == '/' || 
1643                             (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == '/') ||
1644                             (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == '/')) {
1645                                 load_session (Glib::path_get_dirname (session_name), session_name);
1646                         } else {
1647                                 session_path = new_session_dialog->session_folder();
1648                                 load_session (session_path, session_name);
1649                         }
1650                         
1651                 } else if (response == Gtk::RESPONSE_OK) {
1652
1653                         session_name = new_session_dialog->session_name();
1654                         
1655                         if (new_session_dialog->get_current_page() == 1) {
1656                   
1657                                 /* XXX this is a bit of a hack.. 
1658                                    i really want the new sesion dialog to return RESPONSE_YES
1659                                    if we're on page 1 (the load page)
1660                                    Unfortunately i can't see how atm.. 
1661                                 */
1662                                 
1663                                 if (session_name.empty()) {
1664                                         response = Gtk::RESPONSE_NONE;
1665                                         continue;
1666                                 } 
1667                                 
1668                                 if (session_name[0] == '/' || 
1669                                     (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == '/') ||
1670                                     (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == '/')) {
1671                                         load_session (Glib::path_get_dirname (session_name), session_name);
1672                                 } else {
1673                                         session_path = new_session_dialog->session_folder();
1674                                         load_session (session_path, session_name);
1675                                 }
1676                         
1677                         } else {
1678
1679                                 if (session_name.empty()) {
1680                                         response = Gtk::RESPONSE_NONE;
1681                                         continue;
1682                                 } 
1683
1684                                 if (session_name[0] == '/' || 
1685                                     (session_name.length() > 2 && session_name[0] == '.' && session_name[1] == '/') ||
1686                                     (session_name.length() > 3 && session_name[0] == '.' && session_name[1] == '.' && session_name[2] == '/')) {
1687
1688                                         session_path = Glib::path_get_dirname (session_name);
1689                                         session_name = Glib::path_get_basename (session_name);
1690
1691                                 } else {
1692
1693                                         session_path = new_session_dialog->session_folder();
1694
1695                                 }
1696                                 
1697                                 //XXX This is needed because session constructor wants a 
1698                                 //non-existant path. hopefully this will be fixed at some point.
1699                                 
1700                                 session_path = Glib::build_filename (session_path, session_name);
1701                                                 
1702                                 if (g_file_test (session_path.c_str(), GFileTest (G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR))) {
1703
1704                                         Glib::ustring str = string_compose (_("This session\n%1\nalready exists. Do you want to open it?"), session_path);
1705
1706                                         MessageDialog msg (str,
1707                                                            false,
1708                                                            Gtk::MESSAGE_WARNING,
1709                                                            Gtk::BUTTONS_YES_NO,
1710                                                            true);
1711
1712
1713                                         msg.set_name (X_("CleanupDialog"));
1714                                         msg.set_wmclass (_("existing_session"), "Ardour");
1715                                         msg.set_position (Gtk::WIN_POS_MOUSE);
1716                                         
1717                                         switch (msg.run()) {
1718                                         case RESPONSE_YES:
1719                                                 load_session (session_path, session_name);
1720                                                 goto done;
1721                                                 break;
1722                                         default:
1723                                                 response = RESPONSE_NONE;
1724                                                 new_session_dialog->reset ();
1725                                                 continue;
1726                                         }
1727                                 }
1728
1729                                 _session_is_new = true;
1730
1731                                 std::string template_name = new_session_dialog->session_template_name();
1732                                                 
1733                                 if (new_session_dialog->use_session_template()) {
1734                                                         
1735                                         load_session (session_path, session_name, &template_name);
1736                           
1737                                 } else {
1738                                                         
1739                                         uint32_t cchns;
1740                                         uint32_t mchns;
1741                                         AutoConnectOption iconnect;
1742                                         AutoConnectOption oconnect;
1743                                                         
1744                                         if (new_session_dialog->create_control_bus()) {
1745                                                 cchns = (uint32_t) new_session_dialog->control_channel_count();
1746                                         } else {
1747                                                 cchns = 0;
1748                                         }
1749                                                         
1750                                         if (new_session_dialog->create_master_bus()) {
1751                                                 mchns = (uint32_t) new_session_dialog->master_channel_count();
1752                                         } else {
1753                                                 mchns = 0;
1754                                         }
1755                                                         
1756                                         if (new_session_dialog->connect_inputs()) {
1757                                                 iconnect = AutoConnectPhysical;
1758                                         } else {
1759                                                 iconnect = AutoConnectOption (0);
1760                                         }
1761                                                         
1762                                         /// @todo some minor tweaks.
1763                                                         
1764                                         if (new_session_dialog->connect_outs_to_master()) {
1765                                                 oconnect = AutoConnectMaster;
1766                                         } else if (new_session_dialog->connect_outs_to_physical()) {
1767                                                 oconnect = AutoConnectPhysical;
1768                                         } else {
1769                                                 oconnect = AutoConnectOption (0);
1770                                         } 
1771                                                         
1772                                         uint32_t nphysin = (uint32_t) new_session_dialog->input_limit_count();
1773                                         uint32_t nphysout = (uint32_t) new_session_dialog->output_limit_count();
1774                                                         
1775                                         build_session (session_path,
1776                                                        session_name,
1777                                                        cchns,
1778                                                        mchns,
1779                                                        iconnect,
1780                                                        oconnect,
1781                                                        nphysin,
1782                                                        nphysout, 
1783                                                        engine->frame_rate() * 60 * 5);
1784                                 }
1785                         }
1786                 }
1787                 
1788         } while (response == Gtk::RESPONSE_NONE);
1789
1790   done:
1791         show();
1792         new_session_dialog->get_window()->set_cursor();
1793         new_session_dialog->hide();
1794 }
1795
1796 void
1797 ARDOUR_UI::close_session()
1798 {
1799         unload_session();
1800         new_session ();
1801 }
1802
1803 int
1804 ARDOUR_UI::load_session (const string & path, const string & snap_name, string* mix_template)
1805 {
1806         Session *new_session;
1807         int x;
1808         session_loaded = false;
1809         x = unload_session ();
1810
1811         if (x < 0) {
1812                 return -1;
1813         } else if (x > 0) {
1814                 return 0;
1815         }
1816
1817         /* if it already exists, we must have write access */
1818
1819         if (::access (path.c_str(), F_OK) == 0 && ::access (path.c_str(), W_OK)) {
1820                 MessageDialog msg (*editor, _("\
1821 You do not have write access to this session.\n\
1822 This prevents the session from being loaded."));
1823                 msg.run ();
1824                 return -1;
1825         }
1826
1827         try {
1828                 new_session = new Session (*engine, path, snap_name, mix_template);
1829         }
1830
1831         catch (...) {
1832
1833                 error << string_compose(_("Session \"%1 (snapshot %2)\" did not load successfully"), path, snap_name) << endmsg;
1834                 return -1;
1835         }
1836
1837         connect_to_session (new_session);
1838
1839         Config->set_current_owner (ConfigVariableBase::Interface);
1840
1841         session_loaded = true;
1842         return 0;
1843 }
1844
1845 int
1846 ARDOUR_UI::make_session_clean ()
1847 {
1848         if (session) {
1849                 session->set_clean ();
1850         }
1851
1852         show ();
1853
1854         return FALSE;
1855 }
1856
1857 int
1858 ARDOUR_UI::build_session (const string & path, const string & snap_name, 
1859                           uint32_t control_channels,
1860                           uint32_t master_channels, 
1861                           AutoConnectOption input_connect,
1862                           AutoConnectOption output_connect,
1863                           uint32_t nphysin,
1864                           uint32_t nphysout,
1865                           nframes_t initial_length)
1866 {
1867         Session *new_session;
1868         int x;
1869
1870         session_loaded = false;
1871         x = unload_session ();
1872         if (x < 0) {
1873                 return -1;
1874         } else if (x > 0) {
1875                 return 0;
1876         }
1877         
1878         _session_is_new = true;
1879
1880         try {
1881                 new_session = new Session (*engine, path, snap_name, input_connect, output_connect,
1882                                            control_channels, master_channels, nphysin, nphysout, initial_length);
1883         }
1884
1885         catch (...) {
1886
1887                 error << string_compose(_("Session \"%1 (snapshot %2)\" did not load successfully"), path, snap_name) << endmsg;
1888                 return -1;
1889         }
1890
1891         connect_to_session (new_session);
1892
1893         session_loaded = true;
1894         return 0;
1895 }
1896
1897 void
1898 ARDOUR_UI::show ()
1899 {
1900         if (editor) {
1901                 editor->show_window ();
1902                 
1903                 if (!shown_flag) {
1904                         editor->present ();
1905                 }
1906
1907                 shown_flag = true;
1908         }
1909 }
1910
1911 void
1912 ARDOUR_UI::show_splash ()
1913 {
1914         if (about == 0) {
1915                 about = new About();
1916                 about->signal_response().connect(mem_fun (*this, &ARDOUR_UI::about_signal_response) );
1917         }
1918         about->present();
1919         flush_pending ();
1920 }
1921
1922 void
1923 ARDOUR_UI::about_signal_response(int response)
1924 {
1925         hide_splash();
1926 }
1927
1928 void
1929 ARDOUR_UI::hide_splash ()
1930 {
1931         if (about) {
1932                 about->get_window()->set_cursor ();
1933                 about->hide();
1934         }
1935 }
1936
1937 void
1938 ARDOUR_UI::display_cleanup_results (Session::cleanup_report& rep, const gchar* list_title, const string & msg)
1939 {
1940         size_t removed;
1941
1942         removed = rep.paths.size();
1943
1944         if (removed == 0) {
1945                 MessageDialog msgd (*editor,
1946                                     _("No audio files were ready for cleanup"), 
1947                                     true,
1948                                     Gtk::MESSAGE_INFO,
1949                                     (Gtk::ButtonsType)(Gtk::BUTTONS_OK)  );
1950                 msgd.set_secondary_text (_("If this seems suprising, \n\
1951 check for any existing snapshots.\n\
1952 These may still include regions that\n\
1953 require some unused files to continue to exist."));
1954         
1955                 msgd.run ();
1956                 return;
1957         } 
1958
1959         ArdourDialog results (_("ardour: cleanup"), true, false);
1960         
1961         struct CleanupResultsModelColumns : public Gtk::TreeModel::ColumnRecord {
1962             CleanupResultsModelColumns() { 
1963                     add (visible_name);
1964                     add (fullpath);
1965             }
1966             Gtk::TreeModelColumn<Glib::ustring> visible_name;
1967             Gtk::TreeModelColumn<Glib::ustring> fullpath;
1968         };
1969
1970         
1971         CleanupResultsModelColumns results_columns;
1972         Glib::RefPtr<Gtk::ListStore> results_model;
1973         Gtk::TreeView results_display;
1974         
1975         results_model = ListStore::create (results_columns);
1976         results_display.set_model (results_model);
1977         results_display.append_column (list_title, results_columns.visible_name);
1978
1979         results_display.set_name ("CleanupResultsList");
1980         results_display.set_headers_visible (true);
1981         results_display.set_headers_clickable (false);
1982         results_display.set_reorderable (false);
1983
1984         Gtk::ScrolledWindow list_scroller;
1985         Gtk::Label txt;
1986         Gtk::VBox dvbox;
1987         Gtk::HBox dhbox;  // the hbox for the image and text
1988         Gtk::HBox ddhbox; // the hbox we eventually pack into the dialog's vbox
1989         Gtk::Image* dimage = manage (new Gtk::Image(Stock::DIALOG_INFO,  Gtk::ICON_SIZE_DIALOG));
1990
1991         dimage->set_alignment(ALIGN_LEFT, ALIGN_TOP);
1992
1993         if (rep.space < 1048576.0f) {
1994                 if (removed > 1) {
1995                   txt.set_text (string_compose (msg, removed, _("files were"), session->path() + "dead_sounds", (float) rep.space / 1024.0f, "kilo"));
1996                 } else {
1997                         txt.set_text (string_compose (msg, removed, _("file was"), session->path() + "dead_sounds", (float) rep.space / 1024.0f, "kilo"));
1998                 }
1999         } else {
2000                 if (removed > 1) {
2001                         txt.set_text (string_compose (msg, removed, _("files were"), session->path() + "dead_sounds", (float) rep.space / 1048576.0f, "mega"));
2002                 } else {
2003                         txt.set_text (string_compose (msg, removed, _("file was"), session->path() + "dead_sounds", (float) rep.space / 1048576.0f, "mega"));
2004                 }
2005         }
2006
2007         dhbox.pack_start (*dimage, true, false, 5);
2008         dhbox.pack_start (txt, true, false, 5);
2009
2010         for (vector<string>::iterator i = rep.paths.begin(); i != rep.paths.end(); ++i) {
2011                 TreeModel::Row row = *(results_model->append());
2012                 row[results_columns.visible_name] = *i;
2013                 row[results_columns.fullpath] = *i;
2014         }
2015         
2016         list_scroller.add (results_display);
2017         list_scroller.set_size_request (-1, 150);
2018         list_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
2019
2020         dvbox.pack_start (dhbox, true, false, 5);
2021         dvbox.pack_start (list_scroller, true, false, 5);
2022         ddhbox.pack_start (dvbox, true, false, 5);
2023
2024         results.get_vbox()->pack_start (ddhbox, true, false, 5);
2025         results.add_button (Stock::CLOSE, RESPONSE_CLOSE);
2026         results.set_default_response (RESPONSE_CLOSE);
2027         results.set_position (Gtk::WIN_POS_MOUSE);
2028         results.show_all_children ();
2029         results.set_resizable (false);
2030
2031         results.run ();
2032
2033 }
2034
2035 void
2036 ARDOUR_UI::cleanup ()
2037 {
2038         if (session == 0) {
2039                 /* shouldn't happen: menu item is insensitive */
2040                 return;
2041         }
2042
2043
2044         MessageDialog  checker (_("Are you sure you want to cleanup?"),
2045                                 true,
2046                                 Gtk::MESSAGE_QUESTION,
2047                                 (Gtk::ButtonsType)(Gtk::BUTTONS_NONE));
2048
2049         checker.set_secondary_text(_("Cleanup is a destructive operation.\n\
2050 ALL undo/redo information will be lost if you cleanup.\n\
2051 After cleanup, unused audio files will be moved to a \
2052 \"dead sounds\" location."));
2053         
2054         checker.add_button (Stock::CANCEL, RESPONSE_CANCEL);
2055         checker.add_button (_("Clean Up"), RESPONSE_ACCEPT);
2056         checker.set_default_response (RESPONSE_CANCEL);
2057
2058         checker.set_name (_("CleanupDialog"));
2059         checker.set_wmclass (_("ardour_cleanup"), "Ardour");
2060         checker.set_position (Gtk::WIN_POS_MOUSE);
2061
2062         switch (checker.run()) {
2063         case RESPONSE_ACCEPT:
2064                 break;
2065         default:
2066                 return;
2067         }
2068
2069         Session::cleanup_report rep;
2070
2071         editor->prepare_for_cleanup ();
2072
2073         if (session->cleanup_sources (rep)) {
2074                 return;
2075         }
2076         checker.hide();
2077         display_cleanup_results (rep, 
2078                                  _("cleaned files"),
2079                                  _("\
2080 The following %1 %2 not in use and \n\
2081 have been moved to:\n\
2082 %3. \n\n\
2083 Flushing the wastebasket will \n\
2084 release an additional\n\
2085 %4 %5bytes of disk space.\n"
2086                                          ));
2087 }
2088
2089 void
2090 ARDOUR_UI::flush_trash ()
2091 {
2092         if (session == 0) {
2093                 /* shouldn't happen: menu item is insensitive */
2094                 return;
2095         }
2096
2097         Session::cleanup_report rep;
2098
2099         if (session->cleanup_trash_sources (rep)) {
2100                 return;
2101         }
2102
2103         display_cleanup_results (rep, 
2104                                  _("deleted file"),
2105                                  _("The following %1 %2 deleted from\n\
2106 %3,\n\
2107 releasing %4 %5bytes of disk space"));
2108 }
2109
2110 void
2111 ARDOUR_UI::add_route ()
2112 {
2113         int count;
2114
2115         if (!session) {
2116                 return;
2117         }
2118
2119         if (add_route_dialog == 0) {
2120                 add_route_dialog = new AddRouteDialog;
2121                 editor->ensure_float (*add_route_dialog);
2122         }
2123
2124         if (add_route_dialog->is_visible()) {
2125                 /* we're already doing this */
2126                 return;
2127         }
2128
2129         ResponseType r = (ResponseType) add_route_dialog->run ();
2130         
2131         add_route_dialog->hide();
2132
2133         switch (r) {
2134         case RESPONSE_ACCEPT:
2135                 break;
2136         default:
2137                 return;
2138                 break;
2139         }
2140
2141         if ((count = add_route_dialog->count()) <= 0) {
2142                 return;
2143         }
2144
2145         uint32_t input_chan = add_route_dialog->channels ();
2146         uint32_t output_chan;
2147         string name_template = add_route_dialog->name_template ();
2148         bool track = add_route_dialog->track ();
2149
2150         AutoConnectOption oac = Config->get_output_auto_connect();
2151
2152         if (oac & AutoConnectMaster) {
2153                 output_chan = (session->master_out() ? session->master_out()->n_inputs() : input_chan);
2154         } else {
2155                 output_chan = input_chan;
2156         }
2157
2158         /* XXX do something with name template */
2159
2160         if (track) {
2161                 session_add_audio_track (input_chan, output_chan, add_route_dialog->mode(), count);
2162         } else {
2163                 session_add_audio_bus (input_chan, output_chan, count);
2164         }
2165 }
2166
2167 XMLNode*
2168 ARDOUR_UI::mixer_settings () const
2169 {
2170         XMLNode* node = 0;
2171
2172         if (session) {
2173                 node = session->instant_xml(X_("Mixer"), session->path());
2174         } else {
2175                 node = Config->instant_xml(X_("Mixer"), get_user_ardour_path());
2176         }
2177
2178         if (!node) {
2179                 node = new XMLNode (X_("Mixer"));
2180         }
2181
2182         return node;
2183 }
2184
2185 XMLNode*
2186 ARDOUR_UI::editor_settings () const
2187 {
2188         XMLNode* node = 0;
2189
2190         if (session) {
2191                 node = session->instant_xml(X_("Editor"), session->path());
2192         } else {
2193                 node = Config->instant_xml(X_("Editor"), get_user_ardour_path());
2194         }
2195
2196         if (!node) {
2197                 node = new XMLNode (X_("Editor"));
2198         }
2199         return node;
2200 }
2201
2202 XMLNode*
2203 ARDOUR_UI::keyboard_settings () const
2204 {
2205         XMLNode* node = 0;
2206
2207         node = Config->extra_xml(X_("Keyboard"));
2208         
2209         if (!node) {
2210                 node = new XMLNode (X_("Keyboard"));
2211         }
2212         return node;
2213 }
2214
2215 void
2216 ARDOUR_UI::halt_on_xrun_message ()
2217 {
2218         ENSURE_GUI_THREAD (mem_fun(*this, &ARDOUR_UI::halt_on_xrun_message));
2219
2220         MessageDialog msg (*editor,
2221                            _("Recording was stopped because your system could not keep up."));
2222         msg.run ();
2223 }
2224
2225 void
2226 ARDOUR_UI::disk_overrun_handler ()
2227 {
2228         ENSURE_GUI_THREAD (mem_fun(*this, &ARDOUR_UI::disk_underrun_handler));
2229
2230         if (!have_disk_overrun_displayed) {
2231                 have_disk_overrun_displayed = true;
2232                 MessageDialog msg (*editor, X_("diskrate dialog"), _("\
2233 The disk system on your computer\n\
2234 was not able to keep up with Ardour.\n\
2235 \n\
2236 Specifically, it failed to write data to disk\n\
2237 quickly enough to keep up with recording.\n"));
2238                 msg.run ();
2239                 have_disk_overrun_displayed = false;
2240         }
2241 }
2242
2243 void
2244 ARDOUR_UI::disk_underrun_handler ()
2245 {
2246         ENSURE_GUI_THREAD (mem_fun(*this, &ARDOUR_UI::disk_underrun_handler));
2247
2248         if (!have_disk_underrun_displayed) {
2249                 have_disk_underrun_displayed = true;
2250                 MessageDialog msg (*editor,
2251                         (_("The disk system on your computer\n\
2252 was not able to keep up with Ardour.\n\
2253 \n\
2254 Specifically, it failed to read data from disk\n\
2255 quickly enough to keep up with playback.\n")));
2256                 msg.run ();
2257                 have_disk_underrun_displayed = false;
2258         } 
2259 }
2260
2261 void
2262 ARDOUR_UI::disk_underrun_message_gone ()
2263 {
2264         have_disk_underrun_displayed = false;
2265 }
2266
2267 void
2268 ARDOUR_UI::disk_overrun_message_gone ()
2269 {
2270         have_disk_underrun_displayed = false;
2271 }
2272
2273 int
2274 ARDOUR_UI::pending_state_dialog ()
2275 {
2276         ArdourDialog dialog ("pending state dialog");
2277         Label  message (_("\
2278 This session appears to have been in\n\
2279 middle of recording when ardour or\n\
2280 the computer was shutdown.\n\
2281 \n\
2282 Ardour can recover any captured audio for\n\
2283 you, or it can ignore it. Please decide\n\
2284 what you would like to do.\n"));
2285
2286         dialog.get_vbox()->pack_start (message);
2287         dialog.add_button (_("Recover from crash"), RESPONSE_ACCEPT);
2288         dialog.add_button (_("Ignore crash data"), RESPONSE_REJECT);
2289
2290         dialog.set_position (WIN_POS_CENTER);
2291         dialog.show_all ();
2292         
2293         switch (dialog.run ()) {
2294         case RESPONSE_ACCEPT:
2295                 return 1;
2296         default:
2297                 return 0;
2298         }
2299 }
2300         
2301 void
2302 ARDOUR_UI::disconnect_from_jack ()
2303 {
2304         if (engine) {
2305                 if( engine->disconnect_from_jack ()) {
2306                         MessageDialog msg (*editor, _("Could not disconnect from JACK"));
2307                         msg.run ();
2308                 }
2309
2310                 update_sample_rate (0);
2311         }
2312 }
2313
2314 void
2315 ARDOUR_UI::reconnect_to_jack ()
2316 {
2317         if (engine) {
2318                 if (engine->reconnect_to_jack ()) {
2319                         MessageDialog msg (*editor,  _("Could not reconnect to JACK"));
2320                         msg.run ();
2321                 }
2322
2323                 update_sample_rate (0);
2324         }
2325 }
2326
2327 void
2328 ARDOUR_UI::set_jack_buffer_size (nframes_t nframes)
2329 {
2330         engine->request_buffer_size (nframes);
2331         update_sample_rate (0);
2332 }
2333
2334 int
2335 ARDOUR_UI::cmdline_new_session (string path)
2336 {
2337         if (path[0] != '/') {
2338                 char buf[PATH_MAX+1];
2339                 string str;
2340
2341                 getcwd (buf, sizeof (buf));
2342                 str = buf;
2343                 str += '/';
2344                 str += path;
2345                 path = str;
2346         }
2347
2348         new_session (false, path);
2349
2350         _will_create_new_session_automatically = false; /* done it */
2351         return FALSE; /* don't call it again */
2352 }
2353
2354 void
2355 ARDOUR_UI::use_config ()
2356 {
2357         Glib::RefPtr<Action> act;
2358
2359         switch (Config->get_native_file_data_format ()) {
2360         case FormatFloat:
2361                 act = ActionManager::get_action (X_("options"), X_("FileDataFormatFloat"));
2362                 break;
2363         case FormatInt24:
2364                 act = ActionManager::get_action (X_("options"), X_("FileDataFormat24bit"));
2365                 break;
2366         }
2367
2368         if (act) {
2369                 Glib::RefPtr<RadioAction> ract = Glib::RefPtr<RadioAction>::cast_dynamic(act);
2370                 ract->set_active ();
2371         }       
2372
2373         switch (Config->get_native_file_header_format ()) {
2374         case BWF:
2375                 act = ActionManager::get_action (X_("options"), X_("FileHeaderFormatBWF"));
2376                 break;
2377         case WAVE:
2378                 act = ActionManager::get_action (X_("options"), X_("FileHeaderFormatWAVE"));
2379                 break;
2380         case WAVE64:
2381                 act = ActionManager::get_action (X_("options"), X_("FileHeaderFormatWAVE64"));
2382                 break;
2383         case iXML:
2384                 act = ActionManager::get_action (X_("options"), X_("FileHeaderFormatiXML"));
2385                 break;
2386         case RF64:
2387                 act = ActionManager::get_action (X_("options"), X_("FileHeaderFormatRF64"));
2388                 break;
2389         case CAF:
2390                 act = ActionManager::get_action (X_("options"), X_("FileHeaderFormatCAF"));
2391                 break;
2392         case AIFF:
2393                 act = ActionManager::get_action (X_("options"), X_("FileHeaderFormatAIFF"));
2394                 break;
2395         }
2396
2397         if (act) {
2398                 Glib::RefPtr<RadioAction> ract = Glib::RefPtr<RadioAction>::cast_dynamic(act);
2399                 ract->set_active ();
2400         }       
2401 }