fix feedback loop while track resizing
[ardour.git] / gtk2_ardour / route_time_axis.cc
1 /*
2     Copyright (C) 2006 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
19 #include <cstdlib>
20 #include <cmath>
21 #include <cassert>
22
23 #include <algorithm>
24 #include <string>
25 #include <vector>
26 #include <utility>
27
28 #include <sigc++/bind.h>
29
30 #include <pbd/error.h>
31 #include <pbd/stl_delete.h>
32 #include <pbd/whitespace.h>
33 #include <pbd/memento_command.h>
34
35 #include <gtkmm/menu.h>
36 #include <gtkmm/menuitem.h>
37 #include <gtkmm2ext/gtk_ui.h>
38 #include <gtkmm2ext/selector.h>
39 #include <gtkmm2ext/stop_signal.h>
40 #include <gtkmm2ext/bindable_button.h>
41 #include <gtkmm2ext/utils.h>
42
43 #include <ardour/playlist.h>
44 #include <ardour/audioplaylist.h>
45 #include <ardour/diskstream.h>
46 #include <ardour/processor.h>
47 #include <ardour/ladspa_plugin.h>
48 #include <ardour/location.h>
49 #include <ardour/panner.h>
50 #include <ardour/playlist.h>
51 #include <ardour/session.h>
52 #include <ardour/session_playlist.h>
53 #include <ardour/utils.h>
54 #include <ardour/parameter.h>
55 #include <ardour/profile.h>
56
57 #include "ardour_ui.h"
58 #include "route_time_axis.h"
59 #include "automation_time_axis.h"
60 #include "canvas_impl.h"
61 #include "crossfade_view.h"
62 #include "enums.h"
63 #include "gui_thread.h"
64 #include "keyboard.h"
65 #include "playlist_selector.h"
66 #include "point_selection.h"
67 #include "prompter.h"
68 #include "public_editor.h"
69 #include "region_view.h"
70 #include "rgb_macros.h"
71 #include "selection.h"
72 #include "simplerect.h"
73 #include "streamview.h"
74 #include "utils.h"
75
76 #include <ardour/track.h>
77
78 #include "i18n.h"
79
80 using namespace ARDOUR;
81 using namespace PBD;
82 using namespace Gtkmm2ext;
83 using namespace Gtk;
84 using namespace Editing;
85 using namespace sigc;
86 using namespace std;
87
88 Glib::RefPtr<Gdk::Pixbuf> RouteTimeAxisView::slider;
89
90 void
91 RouteTimeAxisView::setup_slider_pix ()
92 {
93         if ((slider = ::get_icon ("fader_belt_h")) == 0) {
94                 throw failed_constructor ();
95         }
96 }
97
98 RouteTimeAxisView::RouteTimeAxisView (PublicEditor& ed, Session& sess, boost::shared_ptr<Route> rt, Canvas& canvas)
99         : AxisView(sess),
100           RouteUI(rt, sess, _("m"), _("s"), _("r")), // mute, solo, and record
101           TimeAxisView(sess,ed,(TimeAxisView*) 0, canvas),
102           parent_canvas (canvas),
103           button_table (3, 3),
104           edit_group_button (_("g")), // group
105           playlist_button (_("p")), 
106           size_button (_("h")), // height
107           automation_button (_("a")),
108           visual_button (_("v")),
109           gm (rt, sess, slider, true)
110
111 {
112         gm.get_level_meter().set_no_show_all();
113         gm.get_level_meter().setup_meters(50);
114
115         _has_state = true;
116         playlist_menu = 0;
117         playlist_action_menu = 0;
118         automation_action_menu = 0;
119         _view = 0;
120
121         if (!_route->is_hidden()) {
122                 _marked_for_display = true;
123         }
124
125         timestretch_rect = 0;
126         no_redraw = false;
127         destructive_track_mode_item = 0;
128         normal_track_mode_item = 0;
129
130         ignore_toggle = false;
131
132         edit_group_button.set_name ("TrackGroupButton");
133         playlist_button.set_name ("TrackPlaylistButton");
134         automation_button.set_name ("TrackAutomationButton");
135         size_button.set_name ("TrackSizeButton");
136         visual_button.set_name ("TrackVisualButton");
137         hide_button.set_name ("TrackRemoveButton");
138
139         hide_button.add (*(manage (new Image (::get_icon("hide")))));
140         hide_button.show_all ();
141
142         edit_group_button.signal_button_release_event().connect (mem_fun(*this, &RouteTimeAxisView::edit_click), false);
143         playlist_button.signal_clicked().connect (mem_fun(*this, &RouteTimeAxisView::playlist_click));
144         automation_button.signal_clicked().connect (mem_fun(*this, &RouteTimeAxisView::automation_click));
145         size_button.signal_button_release_event().connect (mem_fun(*this, &RouteTimeAxisView::size_click), false);
146         visual_button.signal_clicked().connect (mem_fun(*this, &RouteTimeAxisView::visual_click));
147         hide_button.signal_clicked().connect (mem_fun(*this, &RouteTimeAxisView::hide_click));
148
149         solo_button->signal_button_press_event().connect (mem_fun(*this, &RouteUI::solo_press), false);
150         solo_button->signal_button_release_event().connect (mem_fun(*this, &RouteUI::solo_release));
151         mute_button->signal_button_press_event().connect (mem_fun(*this, &RouteUI::mute_press), false);
152         mute_button->signal_button_release_event().connect (mem_fun(*this, &RouteUI::mute_release));
153
154         if (is_track()) {
155
156                 /* use icon */
157
158                 rec_enable_button->remove ();
159                 switch (track()->mode()) {
160                 case ARDOUR::Normal:
161                         rec_enable_button->add (*(manage (new Image (::get_icon (X_("record_normal_red"))))));
162                         break;
163                 case ARDOUR::Destructive:
164                         rec_enable_button->add (*(manage (new Image (::get_icon (X_("record_tape_red"))))));
165                         break;
166                 }
167                 rec_enable_button->show_all ();
168
169                 rec_enable_button->signal_button_press_event().connect (mem_fun(*this, &RouteUI::rec_enable_press), false);
170                 rec_enable_button->signal_button_release_event().connect (mem_fun(*this, &RouteUI::rec_enable_release));
171                 controls_table.attach (*rec_enable_button, 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
172                 ARDOUR_UI::instance()->tooltips().set_tip(*rec_enable_button, _("Record"));
173
174         }
175
176         controls_hbox.pack_start(gm.get_level_meter(), false, false);
177         _route->meter_change.connect (mem_fun(*this, &RouteTimeAxisView::meter_changed));
178         _route->input_changed.connect (mem_fun(*this, &RouteTimeAxisView::io_changed));
179         _route->output_changed.connect (mem_fun(*this, &RouteTimeAxisView::io_changed));
180
181         controls_table.attach (*mute_button, 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
182         controls_table.attach (*solo_button, 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
183
184         controls_table.attach (edit_group_button, 7, 8, 1, 2, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
185         controls_table.attach (gm.get_gain_slider(), 0, 5, 1, 2, Gtk::SHRINK, Gtk::SHRINK, 0, 0);
186
187         ARDOUR_UI::instance()->tooltips().set_tip(*solo_button,_("Solo"));
188         ARDOUR_UI::instance()->tooltips().set_tip(*mute_button,_("Mute"));
189         ARDOUR_UI::instance()->tooltips().set_tip(edit_group_button,_("Edit Group"));
190         ARDOUR_UI::instance()->tooltips().set_tip(size_button,_("Display Height"));
191         ARDOUR_UI::instance()->tooltips().set_tip(playlist_button,_("Playlist"));
192         ARDOUR_UI::instance()->tooltips().set_tip(automation_button, _("Automation"));
193         ARDOUR_UI::instance()->tooltips().set_tip(visual_button, _("Visual options"));
194         ARDOUR_UI::instance()->tooltips().set_tip(hide_button, _("Hide this track"));
195         
196         label_view ();
197
198         if (0) {
199
200                 /* old school - when we used to put an extra row of buttons in place */
201
202                 controls_table.attach (hide_button, 0, 1, 1, 2, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
203                 controls_table.attach (visual_button, 1, 2, 1, 2, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
204                 controls_table.attach (size_button, 2, 3, 1, 2, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
205                 controls_table.attach (automation_button, 3, 4, 1, 2, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
206
207         } else {
208
209                 controls_table.attach (automation_button, 6, 7, 1, 2, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
210         }
211
212         if (is_track() && track()->mode() == ARDOUR::Normal) {
213                 controls_table.attach (playlist_button, 5, 6, 1, 2, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
214         }
215
216         y_position = -1;
217
218         _route->mute_changed.connect (mem_fun(*this, &RouteUI::mute_changed));
219         _route->solo_changed.connect (mem_fun(*this, &RouteUI::solo_changed));
220         _route->processors_changed.connect (mem_fun(*this, &RouteTimeAxisView::processors_changed));
221         _route->NameChanged.connect (mem_fun(*this, &RouteTimeAxisView::route_name_changed));
222         _route->solo_safe_changed.connect (mem_fun(*this, &RouteUI::solo_changed));
223
224
225         if (is_track()) {
226
227                 track()->TrackModeChanged.connect (mem_fun(*this, &RouteTimeAxisView::track_mode_changed));
228                 track()->FreezeChange.connect (mem_fun(*this, &RouteTimeAxisView::map_frozen));
229                 track()->DiskstreamChanged.connect (mem_fun(*this, &RouteTimeAxisView::diskstream_changed));
230                 get_diskstream()->SpeedChanged.connect (mem_fun(*this, &RouteTimeAxisView::speed_changed));
231
232                 /* pick up the correct freeze state */
233                 map_frozen ();
234
235         }
236
237         editor.ZoomChanged.connect (mem_fun(*this, &RouteTimeAxisView::reset_samples_per_unit));
238         ColorsChanged.connect (mem_fun (*this, &RouteTimeAxisView::color_handler));
239
240         gm.get_gain_slider().signal_scroll_event().connect(mem_fun(*this, &RouteTimeAxisView::controls_ebox_scroll), false);
241         gm.get_gain_slider().set_name ("TrackGainFader");
242 }
243
244 RouteTimeAxisView::~RouteTimeAxisView ()
245 {
246         GoingAway (); /* EMIT_SIGNAL */
247
248         for (list<ProcessorAutomationInfo*>::iterator i = processor_automation.begin(); i != processor_automation.end(); ++i) {
249                 delete *i;
250         }
251
252         if (playlist_menu) {
253                 delete playlist_menu;
254                 playlist_menu = 0;
255         }
256   
257         if (playlist_action_menu) {
258                 delete playlist_action_menu;
259                 playlist_action_menu = 0;
260         }
261
262         if (_view) {
263                 delete _view;
264                 _view = 0;
265         }
266
267         for (AutomationTracks::iterator i = _automation_tracks.begin(); i != _automation_tracks.end(); ++i) {
268                 delete i->second;
269         }
270         
271         _automation_tracks.clear ();
272 }
273
274 void
275 RouteTimeAxisView::post_construct ()
276 {
277         /* map current state of the route */
278
279         update_diskstream_display ();
280
281         subplugin_menu.items().clear ();
282         _route->foreach_processor (this, &RouteTimeAxisView::add_processor_to_subplugin_menu);
283         _route->foreach_processor (this, &RouteTimeAxisView::add_existing_processor_automation_curves);
284         reset_processor_automation_curves ();
285 }
286
287 void
288 RouteTimeAxisView::set_playlist (boost::shared_ptr<Playlist> newplaylist)
289 {
290         boost::shared_ptr<Playlist> pl = playlist();
291         assert(pl);
292
293         modified_connection.disconnect ();
294         modified_connection = pl->Modified.connect (mem_fun(*this, &RouteTimeAxisView::playlist_modified));
295 }
296
297 void
298 RouteTimeAxisView::playlist_modified ()
299 {
300 }
301
302 gint
303 RouteTimeAxisView::edit_click (GdkEventButton *ev)
304 {
305         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
306                 _route->set_edit_group (0, this);
307                 return FALSE;
308         } 
309
310         using namespace Menu_Helpers;
311
312         MenuList& items = edit_group_menu.items ();
313         RadioMenuItem::Group group;
314
315         items.clear ();
316         items.push_back (RadioMenuElem (group, _("No group"), 
317                                         bind (mem_fun(*this, &RouteTimeAxisView::set_edit_group_from_menu), (RouteGroup *) 0)));
318         
319         if (_route->edit_group() == 0) {
320                 static_cast<RadioMenuItem*>(&items.back())->set_active ();
321         }
322         
323         _session.foreach_edit_group (bind (mem_fun (*this, &RouteTimeAxisView::add_edit_group_menu_item), &group));
324         edit_group_menu.popup (ev->button, ev->time);
325
326         return FALSE;
327 }
328
329 void
330 RouteTimeAxisView::add_edit_group_menu_item (RouteGroup *eg, RadioMenuItem::Group* group)
331 {
332         using namespace Menu_Helpers;
333
334         MenuList &items = edit_group_menu.items();
335
336         items.push_back (RadioMenuElem (*group, eg->name(), bind (mem_fun(*this, &RouteTimeAxisView::set_edit_group_from_menu), eg)));
337         if (_route->edit_group() == eg) {
338                 static_cast<RadioMenuItem*>(&items.back())->set_active ();
339         }
340 }
341
342 void
343 RouteTimeAxisView::set_edit_group_from_menu (RouteGroup *eg)
344 {
345         _route->set_edit_group (eg, this);
346 }
347
348 void
349 RouteTimeAxisView::playlist_changed ()
350
351 {
352         label_view ();
353
354         if (is_track()) {
355                 set_playlist (get_diskstream()->playlist());
356         }
357 }
358
359 void
360 RouteTimeAxisView::label_view ()
361 {
362         string x = _route->name();
363
364         if (x != name_entry.get_text()) {
365                 name_entry.set_text (x);
366         }
367
368         ARDOUR_UI::instance()->tooltips().set_tip (name_entry, x);
369 }
370
371 void
372 RouteTimeAxisView::route_name_changed ()
373 {
374         editor.route_name_changed (this);
375         label_view ();
376 }
377
378 void
379 RouteTimeAxisView::take_name_changed (void *src)
380
381 {
382         if (src != this) {
383                 label_view ();
384         }
385 }
386
387 void
388 RouteTimeAxisView::playlist_click ()
389 {
390         // always build a new action menu
391         
392         if (playlist_action_menu != 0) {
393                 delete playlist_action_menu;
394         } 
395
396         playlist_action_menu = new Menu;
397         playlist_action_menu->set_name ("ArdourContextMenu");
398         
399         build_playlist_menu (playlist_action_menu);
400
401         conditionally_add_to_selection ();
402         playlist_action_menu->popup (1, gtk_get_current_event_time());
403 }
404
405 void
406 RouteTimeAxisView::automation_click ()
407 {
408         if (automation_action_menu == 0) {
409                 /* this seems odd, but the automation action
410                    menu is built as part of the display menu.
411                 */
412                 build_display_menu ();
413         }
414         conditionally_add_to_selection ();
415         automation_action_menu->popup (1, gtk_get_current_event_time());
416 }
417
418 int
419 RouteTimeAxisView::set_state (const XMLNode& node)
420 {
421         TimeAxisView::set_state (node);
422
423         XMLNodeList kids = node.children();
424         XMLNodeConstIterator iter;
425         const XMLProperty* prop;
426         
427         for (iter = kids.begin(); iter != kids.end(); ++iter) {
428                 if ((*iter)->name() == AutomationTimeAxisView::state_node_name) {
429                         if ((prop = (*iter)->property ("automation-id")) != 0) {
430                                 Parameter param(prop->value());
431                                 bool show = ((prop = (*iter)->property ("shown")) != 0) && prop->value() == "yes";
432                                 create_automation_child(param, show);
433                         } else {
434                                 warning << "Automation child has no ID" << endmsg;
435                         }
436                 }
437         }
438         return 0;
439 }
440
441 void
442 RouteTimeAxisView::build_automation_action_menu ()
443 {
444         using namespace Menu_Helpers;
445
446         automation_action_menu = manage (new Menu);
447         MenuList& automation_items = automation_action_menu->items();
448         automation_action_menu->set_name ("ArdourContextMenu");
449         
450         automation_items.push_back (MenuElem (_("Show all automation"),
451                                               mem_fun(*this, &RouteTimeAxisView::show_all_automation)));
452
453         automation_items.push_back (MenuElem (_("Show existing automation"),
454                                               mem_fun(*this, &RouteTimeAxisView::show_existing_automation)));
455
456         automation_items.push_back (MenuElem (_("Hide all automation"),
457                                               mem_fun(*this, &RouteTimeAxisView::hide_all_automation)));
458
459         if (subplugin_menu.get_attach_widget())
460                 subplugin_menu.detach();
461
462         automation_items.push_back (MenuElem (_("Plugins"), subplugin_menu));
463         
464         map<ARDOUR::Parameter, RouteAutomationNode*>::iterator i;
465         for (i = _automation_tracks.begin(); i != _automation_tracks.end(); ++i) {
466
467                 automation_items.push_back (SeparatorElem());
468
469                 if (i->second->menu_item)
470                         delete i->second->menu_item;
471
472                 automation_items.push_back(CheckMenuElem (_route->describe_parameter(i->second->param), 
473                                 bind (mem_fun(*this, &RouteTimeAxisView::toggle_automation_track), i->second->param)));
474
475                 i->second->menu_item = static_cast<Gtk::CheckMenuItem*>(&automation_items.back());
476
477                 i->second->menu_item->set_active(show_automation(i->second->param));
478                 //i->second->menu_item->set_active(false);
479         }
480 }
481
482 void
483 RouteTimeAxisView::build_display_menu ()
484 {
485         using namespace Menu_Helpers;
486
487         /* get the size menu ready */
488
489         build_size_menu ();
490
491         /* prepare it */
492
493         TimeAxisView::build_display_menu ();
494
495         /* now fill it with our stuff */
496
497         MenuList& items = display_menu->items();
498         display_menu->set_name ("ArdourContextMenu");
499         
500         items.push_back (MenuElem (_("Height"), *size_menu));
501         items.push_back (MenuElem (_("Color"), mem_fun(*this, &RouteTimeAxisView::select_track_color)));
502
503         items.push_back (SeparatorElem());
504
505         build_remote_control_menu ();
506         build_automation_action_menu ();
507
508         if (!Profile->get_sae()) {
509                 items.push_back (MenuElem (_("Remote Control ID"), *remote_control_menu));
510                 items.push_back (MenuElem (_("Automation"), *automation_action_menu));
511                 items.push_back (SeparatorElem());
512         }
513
514         // Hook for derived classes to add type specific stuff
515         append_extra_display_menu_items ();
516         items.push_back (SeparatorElem());
517         
518         if (is_track()) {
519
520                 Menu *layers_menu = manage(new Menu);
521                 MenuList &layers_items = layers_menu->items();
522                 layers_menu->set_name("ArdourContextMenu");
523
524                 RadioMenuItem::Group layers_group;
525
526                 layers_items.push_back(RadioMenuElem (layers_group, _("Overlaid"),
527                                 bind (mem_fun (*this, &RouteTimeAxisView::set_layer_display), Overlaid)));
528                 layers_items.push_back(RadioMenuElem (layers_group, _("Stacked"),
529                                 bind (mem_fun (*this, &RouteTimeAxisView::set_layer_display), Stacked)));
530
531                 items.push_back (MenuElem (_("Layers"), *layers_menu));
532
533                 Menu* alignment_menu = manage (new Menu);
534                 MenuList& alignment_items = alignment_menu->items();
535                 alignment_menu->set_name ("ArdourContextMenu");
536
537                 RadioMenuItem::Group align_group;
538
539                 alignment_items.push_back (RadioMenuElem (align_group, _("Align with existing material"),
540                                         bind (mem_fun(*this, &RouteTimeAxisView::set_align_style), ExistingMaterial)));
541                 align_existing_item = dynamic_cast<RadioMenuItem*>(&alignment_items.back());
542                 if (get_diskstream()->alignment_style() == ExistingMaterial)
543                         align_existing_item->set_active();
544
545                 alignment_items.push_back (RadioMenuElem (align_group, _("Align with capture time"),
546                                         bind (mem_fun(*this, &RouteTimeAxisView::set_align_style), CaptureTime)));
547                 align_capture_item = dynamic_cast<RadioMenuItem*>(&alignment_items.back());
548                 if (get_diskstream()->alignment_style() == CaptureTime)
549                         align_capture_item->set_active();
550
551                 if (!Profile->get_sae()) {
552                         items.push_back (MenuElem (_("Alignment"), *alignment_menu));
553                         get_diskstream()->AlignmentStyleChanged.connect (mem_fun(*this, &RouteTimeAxisView::align_style_changed));
554                         
555                         RadioMenuItem::Group mode_group;
556                         items.push_back (RadioMenuElem (mode_group, _("Normal mode"),
557                                                         bind (mem_fun (*this, &RouteTimeAxisView::set_track_mode), ARDOUR::Normal)));
558                         normal_track_mode_item = dynamic_cast<RadioMenuItem*>(&items.back());
559                         items.push_back (RadioMenuElem (mode_group, _("Tape mode"),
560                                                         bind (mem_fun (*this, &RouteTimeAxisView::set_track_mode), ARDOUR::Destructive)));
561                         destructive_track_mode_item = dynamic_cast<RadioMenuItem*>(&items.back());
562                         
563                         switch (track()->mode()) {
564                         case ARDOUR::Destructive:
565                                 destructive_track_mode_item->set_active ();
566                                 break;
567                         case ARDOUR::Normal:
568                                 normal_track_mode_item->set_active ();
569                                 break;
570                         }
571
572                 get_diskstream()->AlignmentStyleChanged.connect (
573                                 mem_fun(*this, &RouteTimeAxisView::align_style_changed));
574
575                 mode_menu = build_mode_menu();
576                 if (mode_menu)
577                         items.push_back (MenuElem (_("Mode"), *mode_menu));
578                         
579                 items.push_back (SeparatorElem());
580                 }
581         }
582
583         items.push_back (CheckMenuElem (_("Active"), mem_fun(*this, &RouteUI::toggle_route_active)));
584         route_active_menu_item = dynamic_cast<CheckMenuItem *> (&items.back());
585         route_active_menu_item->set_active (_route->active());
586
587         items.push_back (SeparatorElem());
588         items.push_back (MenuElem (_("Hide"), mem_fun(*this, &RouteTimeAxisView::hide_click)));
589         items.push_back (MenuElem (_("Remove"), mem_fun(*this, &RouteUI::remove_this_route)));
590 }
591
592 static bool __reset_item (RadioMenuItem* item)
593 {
594         item->set_active ();
595         return false;
596 }
597
598 void
599 RouteTimeAxisView::set_track_mode (TrackMode mode)
600 {
601         RadioMenuItem* item;
602         RadioMenuItem* other_item;
603
604         switch (mode) {
605         case ARDOUR::Normal:
606                 item = normal_track_mode_item;
607                 other_item = destructive_track_mode_item;
608                 break;
609         case ARDOUR::Destructive:
610                 item = destructive_track_mode_item;
611                 other_item = normal_track_mode_item;
612                 break;
613         default:
614                 fatal << string_compose (_("programming error: %1 %2"), "illegal track mode in RouteTimeAxisView::set_track_mode", mode) << endmsg;
615                 /*NOTREACHED*/
616                 return;
617         }
618         
619         if (item && other_item && item->get_active () && track()->mode() != mode) {
620                 _set_track_mode (track().get(), mode, other_item);
621         }
622 }
623
624 void
625 RouteTimeAxisView::_set_track_mode (Track* track, TrackMode mode, RadioMenuItem* reset_item)
626 {
627         bool needs_bounce;
628
629         if (!track->can_use_mode (mode, needs_bounce)) {
630
631                 if (!needs_bounce) {
632                         /* cannot be done */
633                         Glib::signal_idle().connect (bind (sigc::ptr_fun (__reset_item), reset_item));
634                         return;
635                 } else {
636                         cerr << "would bounce this one\n";
637                         return;
638                 }
639         }
640
641         track->set_mode (mode);
642
643         rec_enable_button->remove ();
644         switch (mode) {
645         case ARDOUR::Normal:
646                 rec_enable_button->add (*(manage (new Image (::get_icon (X_("record_normal_red"))))));
647                 break;
648         case ARDOUR::Destructive:
649                 rec_enable_button->add (*(manage (new Image (::get_icon (X_("record_tape_red"))))));
650                 break;
651         }
652         rec_enable_button->show_all ();
653
654 }
655
656 void
657 RouteTimeAxisView::track_mode_changed ()
658 {
659         RadioMenuItem* item;
660         
661         switch (track()->mode()) {
662         case ARDOUR::Normal:
663                 item = normal_track_mode_item;
664                 break;
665         case ARDOUR::Destructive:
666                 item = destructive_track_mode_item;
667                 break;
668         default:
669                 fatal << string_compose (_("programming error: %1 %2"), "illegal track mode in RouteTimeAxisView::set_track_mode", track()->mode()) << endmsg;
670                 /*NOTREACHED*/
671                 return;
672         }
673
674         item->set_active ();
675 }
676
677 void
678 RouteTimeAxisView::show_timestretch (nframes_t start, nframes_t end)
679 {
680         double x1;
681         double x2;
682         double y2;
683         
684         TimeAxisView::show_timestretch (start, end);
685
686         hide_timestretch ();
687
688 #if 0   
689         if (ts.empty()) {
690                 return;
691         }
692
693
694         /* check that the time selection was made in our route, or our edit group.
695            remember that edit_group() == 0 implies the route is *not* in a edit group.
696         */
697
698         if (!(ts.track == this || (ts.group != 0 && ts.group == _route->edit_group()))) {
699                 /* this doesn't apply to us */
700                 return;
701         }
702
703         /* ignore it if our edit group is not active */
704         
705         if ((ts.track != this) && _route->edit_group() && !_route->edit_group()->is_active()) {
706                 return;
707         }
708 #endif
709
710         if (timestretch_rect == 0) {
711                 timestretch_rect = new SimpleRect (*canvas_display);
712                 timestretch_rect->property_x1() =  0.0;
713                 timestretch_rect->property_y1() =  0.0;
714                 timestretch_rect->property_x2() =  0.0;
715                 timestretch_rect->property_y2() =  0.0;
716                 timestretch_rect->property_fill_color_rgba() =  ARDOUR_UI::config()->canvasvar_TimeStretchFill.get();
717                 timestretch_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeStretchOutline.get();
718         }
719
720         timestretch_rect->show ();
721         timestretch_rect->raise_to_top ();
722
723         x1 = start / editor.get_current_zoom();
724         x2 = (end - 1) / editor.get_current_zoom();
725         y2 = current_height() - 2;
726         
727         timestretch_rect->property_x1() = x1;
728         timestretch_rect->property_y1() = 1.0;
729         timestretch_rect->property_x2() = x2;
730         timestretch_rect->property_y2() = y2;
731 }
732
733 void
734 RouteTimeAxisView::hide_timestretch ()
735 {
736         TimeAxisView::hide_timestretch ();
737
738         if (timestretch_rect) {
739                 timestretch_rect->hide ();
740         }
741 }
742
743 void
744 RouteTimeAxisView::show_selection (TimeSelection& ts)
745 {
746
747 #if 0
748         /* ignore it if our edit group is not active or if the selection was started
749            in some other track or edit group (remember that edit_group() == 0 means
750            that the track is not in an edit group).
751         */
752
753         if (((ts.track != this && !is_child (ts.track)) && _route->edit_group() && !_route->edit_group()->is_active()) ||
754             (!(ts.track == this || is_child (ts.track) || (ts.group != 0 && ts.group == _route->edit_group())))) {
755                 hide_selection ();
756                 return;
757         }
758 #endif
759
760         TimeAxisView::show_selection (ts);
761 }
762
763 void
764 RouteTimeAxisView::set_height (uint32_t h)
765 {
766         int gmlen = h - 5;
767         bool height_changed = (height == 0) || (h != height);
768         gm.get_level_meter().setup_meters (gmlen);
769
770         TimeAxisView::set_height (h);
771
772         ensure_xml_node ();
773
774         if (_view) {
775                 _view->set_height ((double) current_height());
776         }
777
778         char buf[32];
779         snprintf (buf, sizeof (buf), "%u", height);
780         xml_node->add_property ("height", buf);
781
782         if (height >= hNormal) {
783                 reset_meter();
784                 show_name_entry ();
785                 hide_name_label ();
786
787                 gm.get_gain_slider().show();
788                 mute_button->show();
789                 solo_button->show();
790                 if (rec_enable_button)
791                         rec_enable_button->show();
792
793                 edit_group_button.show();
794                 hide_button.show();
795                 visual_button.show();
796                 size_button.show();
797                 automation_button.show();
798                 
799                 if (is_track() && track()->mode() == ARDOUR::Normal) {
800                         playlist_button.show();
801                 }
802
803         } else if (height >= hSmaller) {
804
805                 reset_meter();
806                 show_name_entry ();
807                 hide_name_label ();
808
809                 gm.get_gain_slider().hide();
810                 mute_button->show();
811                 solo_button->show();
812                 if (rec_enable_button)
813                         rec_enable_button->show();
814
815                 edit_group_button.hide ();
816                 hide_button.hide ();
817                 visual_button.hide ();
818                 size_button.hide ();
819                 automation_button.hide ();
820                 
821                 if (is_track() && track()->mode() == ARDOUR::Normal) {
822                         playlist_button.hide ();
823                 }
824
825         } else {
826
827                 hide_name_entry ();
828                 show_name_label ();
829                 
830                 gm.get_gain_slider().hide();
831                 mute_button->hide();
832                 solo_button->hide();
833                 if (rec_enable_button)
834                         rec_enable_button->hide();
835
836                 edit_group_button.hide ();
837                 hide_button.hide ();
838                 visual_button.hide ();
839                 size_button.hide ();
840                 automation_button.hide ();
841                 playlist_button.hide ();
842                 name_label.set_text (_route->name());
843         }
844
845         if (height_changed) {
846                 /* only emit the signal if the height really changed */
847                  _route->gui_changed ("track_height", (void *) 0); /* EMIT_SIGNAL */
848         }
849 }
850
851 void
852 RouteTimeAxisView::select_track_color ()
853 {
854         if (RouteUI::choose_color ()) {
855
856                 if (_view) {
857                         _view->apply_color (_color, StreamView::RegionColor);
858                 }
859         }
860 }
861
862 void
863 RouteTimeAxisView::reset_samples_per_unit ()
864 {
865         set_samples_per_unit (editor.get_current_zoom());
866 }
867
868 void
869 RouteTimeAxisView::set_samples_per_unit (double spu)
870 {
871         double speed = 1.0;
872
873         if (get_diskstream() != 0) {
874                 speed = get_diskstream()->speed();
875         }
876         
877         if (_view) {
878                 _view->set_samples_per_unit (spu * speed);
879         }
880
881         TimeAxisView::set_samples_per_unit (spu * speed);
882 }
883
884 void
885 RouteTimeAxisView::align_style_changed ()
886 {
887         switch (get_diskstream()->alignment_style()) {
888         case ExistingMaterial:
889                 if (!align_existing_item->get_active()) {
890                         align_existing_item->set_active();
891                 }
892                 break;
893         case CaptureTime:
894                 if (!align_capture_item->get_active()) {
895                         align_capture_item->set_active();
896                 }
897                 break;
898         }
899 }
900
901 void
902 RouteTimeAxisView::set_align_style (AlignStyle style)
903 {
904         RadioMenuItem* item;
905
906         switch (style) {
907         case ExistingMaterial:
908                 item = align_existing_item;
909                 break;
910         case CaptureTime:
911                 item = align_capture_item;
912                 break;
913         default:
914                 fatal << string_compose (_("programming error: %1 %2"), "illegal align style in RouteTimeAxisView::set_align_style", style) << endmsg;
915                 /*NOTREACHED*/
916                 return;
917         }
918
919         if (item->get_active()) {
920                 get_diskstream()->set_align_style (style);
921         }
922 }
923
924 void
925 RouteTimeAxisView::rename_current_playlist ()
926 {
927         ArdourPrompter prompter (true);
928         string name;
929
930         boost::shared_ptr<Diskstream> ds = get_diskstream();
931         if (!ds || ds->destructive())
932                 return;
933
934         boost::shared_ptr<Playlist> pl = ds->playlist();
935         if (!pl)
936                 return;
937
938         prompter.set_prompt (_("Name for playlist"));
939         prompter.set_initial_text (pl->name());
940         prompter.add_button (_("Rename"), Gtk::RESPONSE_ACCEPT);
941         prompter.set_response_sensitive (Gtk::RESPONSE_ACCEPT, false);
942
943         switch (prompter.run ()) {
944         case Gtk::RESPONSE_ACCEPT:
945                 prompter.get_result (name);
946                 if (name.length()) {
947                         pl->set_name (name);
948                 }
949                 break;
950
951         default:
952                 break;
953         }
954 }
955
956 void
957 RouteTimeAxisView::use_copy_playlist (bool prompt)
958 {
959         string name;
960         
961         boost::shared_ptr<Diskstream> ds = get_diskstream();
962         if (!ds || ds->destructive())
963                 return;
964
965         boost::shared_ptr<const Playlist> pl = ds->playlist();
966         if (!pl)
967                 return;
968
969         name = pl->name();
970
971         do {
972                 name = Playlist::bump_name (name, _session);
973         } while (_session.playlist_by_name(name));
974
975         // TODO: The prompter "new" button should be de-activated if the user
976         // specifies a playlist name which already exists in the session.
977
978         if (prompt) {
979
980                 ArdourPrompter prompter (true);
981                 
982                 prompter.set_prompt (_("Name for Playlist"));
983                 prompter.set_initial_text (name);
984                 prompter.add_button (Gtk::Stock::NEW, Gtk::RESPONSE_ACCEPT);
985                 prompter.set_response_sensitive (Gtk::RESPONSE_ACCEPT, true);
986                 prompter.show_all ();
987                 
988                 switch (prompter.run ()) {
989                 case Gtk::RESPONSE_ACCEPT:
990                         prompter.get_result (name);
991                         break;
992                         
993                 default:
994                         return;
995                 }
996         }
997
998         if (name.length()) {
999                 ds->use_copy_playlist ();
1000                 ds->playlist()->set_name (name);
1001         }
1002 }
1003
1004 void
1005 RouteTimeAxisView::use_new_playlist (bool prompt)
1006 {
1007         string name;
1008         
1009         boost::shared_ptr<Diskstream> ds = get_diskstream();
1010         if (!ds || ds->destructive())
1011                 return;
1012
1013         boost::shared_ptr<const Playlist> pl = ds->playlist();
1014         if (!pl)
1015                 return;
1016
1017         name = pl->name();
1018
1019         do {
1020                 name = Playlist::bump_name (name, _session);
1021         } while (_session.playlist_by_name(name));
1022
1023
1024         if (prompt) {
1025                 
1026                 ArdourPrompter prompter (true);
1027                 
1028                 prompter.set_prompt (_("Name for Playlist"));
1029                 prompter.set_initial_text (name);
1030                 prompter.add_button (Gtk::Stock::NEW, Gtk::RESPONSE_ACCEPT);
1031                 prompter.set_response_sensitive (Gtk::RESPONSE_ACCEPT, true);
1032
1033                 switch (prompter.run ()) {
1034                 case Gtk::RESPONSE_ACCEPT:
1035                         prompter.get_result (name);
1036                         break;
1037                         
1038                 default:
1039                         return;
1040                 }
1041         }
1042
1043         if (name.length()) {
1044                 ds->use_new_playlist ();
1045                 ds->playlist()->set_name (name);
1046         }
1047 }
1048
1049 void
1050 RouteTimeAxisView::clear_playlist ()
1051 {
1052         boost::shared_ptr<Diskstream> ds = get_diskstream();
1053         if (!ds || ds->destructive())
1054                 return;
1055
1056         boost::shared_ptr<Playlist> pl = ds->playlist();
1057         if (!pl)
1058                 return;
1059
1060         editor.clear_playlist (pl);
1061 }
1062
1063 void
1064 RouteTimeAxisView::speed_changed ()
1065 {
1066         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &RouteTimeAxisView::reset_samples_per_unit));
1067 }
1068
1069 void
1070 RouteTimeAxisView::diskstream_changed ()
1071 {
1072         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &RouteTimeAxisView::update_diskstream_display));
1073 }       
1074
1075 void
1076 RouteTimeAxisView::update_diskstream_display ()
1077 {
1078         if (!get_diskstream()) // bus
1079                 return;
1080
1081         set_playlist (get_diskstream()->playlist());
1082         map_frozen ();
1083 }       
1084
1085 void
1086 RouteTimeAxisView::selection_click (GdkEventButton* ev)
1087 {
1088         if (Keyboard::modifier_state_equals (ev->state, (Keyboard::TertiaryModifier|Keyboard::PrimaryModifier))) {
1089
1090                 /* special case: select/deselect all tracks */
1091                 if (editor.get_selection().selected (this)) {
1092                         editor.get_selection().clear_tracks ();
1093                 } else {
1094                         editor.select_all_tracks ();
1095                 }
1096
1097                 return;
1098         } 
1099
1100         PublicEditor::TrackViewList* tracks = editor.get_valid_views (this, _route->edit_group());
1101
1102         switch (Keyboard::selection_type (ev->state)) {
1103         case Selection::Toggle:
1104                 editor.get_selection().toggle (*tracks);
1105                 break;
1106                 
1107         case Selection::Set:
1108                 editor.get_selection().set (*tracks);
1109                 break;
1110
1111         case Selection::Extend:
1112                 if (tracks->size() > 1) {
1113                         /* add each one, do not "extend" */
1114                         editor.get_selection().add (*tracks);
1115                 } else {
1116                         /* extend to the single track */
1117                         editor.extend_selection_to_track (*tracks->front());
1118                 }
1119                 break;
1120
1121         case Selection::Add:
1122                 editor.get_selection().add (*tracks);
1123                 break;
1124         }
1125
1126         delete tracks;
1127 }
1128
1129 void
1130 RouteTimeAxisView::set_selected_points (PointSelection& points)
1131 {
1132         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1133                 (*i)->set_selected_points (points);
1134         }
1135 }
1136
1137 void
1138 RouteTimeAxisView::set_selected_regionviews (RegionSelection& regions)
1139 {
1140         if (_view) {
1141                 _view->set_selected_regionviews (regions);
1142         }
1143 }
1144
1145 /** Add the selectable things that we have to a list.
1146  * @param results List to add things to.
1147  */
1148 void
1149 RouteTimeAxisView::get_selectables (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& results)
1150 {
1151         double speed = 1.0;
1152         
1153         if (get_diskstream() != 0) {
1154                 speed = get_diskstream()->speed();
1155         }
1156         
1157         nframes_t start_adjusted = session_frame_to_track_frame(start, speed);
1158         nframes_t end_adjusted   = session_frame_to_track_frame(end, speed);
1159
1160         if ((_view && ((top < 0.0 && bot < 0.0))) || touched (top, bot)) {
1161                 _view->get_selectables (start_adjusted, end_adjusted, results);
1162         }
1163
1164         /* pick up visible automation tracks */
1165         
1166         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1167                 if (!(*i)->hidden()) {
1168                         (*i)->get_selectables (start_adjusted, end_adjusted, top, bot, results);
1169                 }
1170         }
1171 }
1172
1173 void
1174 RouteTimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& results)
1175 {
1176         if (_view) {
1177                 _view->get_inverted_selectables (sel, results);
1178         }
1179
1180         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1181                 if (!(*i)->hidden()) {
1182                         (*i)->get_inverted_selectables (sel, results);
1183                 }
1184         }
1185
1186         return;
1187 }
1188
1189 bool
1190 RouteTimeAxisView::show_automation(Parameter param)
1191 {
1192         return (_show_automation.find(param) != _show_automation.end());
1193 }
1194
1195 /** Retuns NULL if track for \a param doesn't exist.
1196  */
1197 RouteTimeAxisView::RouteAutomationNode*
1198 RouteTimeAxisView::automation_track(Parameter param)
1199 {
1200         map<ARDOUR::Parameter, RouteAutomationNode*>::iterator i = _automation_tracks.find(param);
1201
1202         if (i != _automation_tracks.end())
1203                 return i->second;
1204         else
1205                 return NULL;
1206 }
1207
1208 /** Shorthand for GainAutomation, etc.
1209  */     
1210 RouteTimeAxisView::RouteAutomationNode*
1211 RouteTimeAxisView::automation_track(AutomationType type)
1212 {
1213         return automation_track(Parameter(type));
1214 }
1215
1216 RouteGroup*
1217 RouteTimeAxisView::edit_group() const
1218 {
1219         return _route->edit_group();
1220 }
1221
1222 string
1223 RouteTimeAxisView::name() const
1224 {
1225         return _route->name();
1226 }
1227
1228 boost::shared_ptr<Playlist>
1229 RouteTimeAxisView::playlist () const 
1230 {
1231         boost::shared_ptr<Diskstream> ds;
1232
1233         if ((ds = get_diskstream()) != 0) {
1234                 return ds->playlist(); 
1235         } else {
1236                 return boost::shared_ptr<Playlist> ();
1237         }
1238 }
1239
1240 void
1241 RouteTimeAxisView::name_entry_changed ()
1242 {
1243         string x;
1244
1245         x = name_entry.get_text ();
1246         
1247         if (x == _route->name()) {
1248                 return;
1249         }
1250
1251         strip_whitespace_edges(x);
1252
1253         if (x.length() == 0) {
1254                 name_entry.set_text (_route->name());
1255                 return;
1256         }
1257
1258         if (_session.route_name_unique (x)) {
1259                 _route->set_name (x);
1260         } else {
1261                 ARDOUR_UI::instance()->popup_error (_("A track already exists with that name"));
1262                 name_entry.set_text (_route->name());
1263         }
1264 }
1265
1266 void
1267 RouteTimeAxisView::visual_click ()
1268 {
1269         popup_display_menu (0);
1270 }
1271
1272 void
1273 RouteTimeAxisView::hide_click ()
1274 {
1275         // LAME fix for hide_button refresh fix
1276         hide_button.set_sensitive(false);
1277         
1278         editor.hide_track_in_display (*this);
1279         
1280         hide_button.set_sensitive(true);
1281 }
1282
1283 boost::shared_ptr<Region>
1284 RouteTimeAxisView::find_next_region (nframes_t pos, RegionPoint point, int32_t dir)
1285 {
1286         boost::shared_ptr<Diskstream> stream;
1287         boost::shared_ptr<Playlist> playlist;
1288
1289         if ((stream = get_diskstream()) != 0 && (playlist = stream->playlist()) != 0) {
1290                 return playlist->find_next_region (pos, point, dir);
1291         }
1292
1293         return boost::shared_ptr<Region> ();
1294 }
1295
1296 nframes64_t 
1297 RouteTimeAxisView::find_next_region_boundary (nframes64_t pos, int32_t dir)
1298 {
1299         boost::shared_ptr<Diskstream> stream;
1300         boost::shared_ptr<Playlist> playlist;
1301
1302         if ((stream = get_diskstream()) != 0 && (playlist = stream->playlist()) != 0) {
1303                 return playlist->find_next_region_boundary (pos, dir);
1304         }
1305
1306         return -1;
1307 }
1308
1309 bool
1310 RouteTimeAxisView::cut_copy_clear (Selection& selection, CutCopyOp op)
1311 {
1312         boost::shared_ptr<Playlist> what_we_got;
1313         boost::shared_ptr<Diskstream> ds = get_diskstream();
1314         boost::shared_ptr<Playlist> playlist;
1315         bool ret = false;
1316
1317         if (ds == 0) {
1318                 /* route is a bus, not a track */
1319                 return false;
1320         }
1321
1322         playlist = ds->playlist();
1323
1324         TimeSelection time (selection.time);
1325         float speed = ds->speed();
1326         if (speed != 1.0f) {
1327                 for (TimeSelection::iterator i = time.begin(); i != time.end(); ++i) {
1328                         (*i).start = session_frame_to_track_frame((*i).start, speed);
1329                         (*i).end   = session_frame_to_track_frame((*i).end,   speed);
1330                 }
1331         }
1332         
1333         XMLNode &before = playlist->get_state();
1334         switch (op) {
1335         case Cut:
1336                 if ((what_we_got = playlist->cut (time)) != 0) {
1337                         editor.get_cut_buffer().add (what_we_got);
1338                         _session.add_command( new MementoCommand<Playlist>(*playlist.get(), &before, &playlist->get_state()));
1339                         ret = true;
1340                 }
1341                 break;
1342         case Copy:
1343                 if ((what_we_got = playlist->copy (time)) != 0) {
1344                         editor.get_cut_buffer().add (what_we_got);
1345                 }
1346                 break;
1347
1348         case Clear:
1349                 if ((what_we_got = playlist->cut (time)) != 0) {
1350                         _session.add_command( new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
1351                         what_we_got->release ();
1352                         ret = true;
1353                 }
1354                 break;
1355         }
1356
1357         return ret;
1358 }
1359
1360 bool
1361 RouteTimeAxisView::paste (nframes_t pos, float times, Selection& selection, size_t nth)
1362 {
1363         if (!is_track()) {
1364                 return false;
1365         }
1366
1367         boost::shared_ptr<Playlist> playlist = get_diskstream()->playlist();
1368         PlaylistSelection::iterator p;
1369         
1370         for (p = selection.playlists.begin(); p != selection.playlists.end() && nth; ++p, --nth);
1371
1372         if (p == selection.playlists.end()) {
1373                 return false;
1374         }
1375
1376         if (get_diskstream()->speed() != 1.0f)
1377                 pos = session_frame_to_track_frame(pos, get_diskstream()->speed() );
1378         
1379         XMLNode &before = playlist->get_state();
1380         playlist->paste (*p, pos, times);
1381         _session.add_command( new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
1382
1383         return true;
1384 }
1385
1386
1387 TimeAxisView::Children
1388 RouteTimeAxisView::get_child_list()
1389 {
1390         TimeAxisView::Children redirect_children;
1391         
1392         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1393                 if (!(*i)->hidden()) {
1394                         redirect_children.push_back(*i);
1395                 }
1396         }
1397         return redirect_children;
1398 }
1399
1400
1401 void
1402 RouteTimeAxisView::build_playlist_menu (Gtk::Menu * menu)
1403 {
1404         using namespace Menu_Helpers;
1405
1406         if (!menu || !is_track()) {
1407                 return;
1408         }
1409
1410         MenuList& playlist_items = menu->items();
1411         menu->set_name ("ArdourContextMenu");
1412         playlist_items.clear();
1413
1414         if (playlist_menu) {
1415                 delete playlist_menu;
1416         }
1417
1418         playlist_menu = new Menu;
1419         playlist_menu->set_name ("ArdourContextMenu");
1420
1421         vector<boost::shared_ptr<Playlist> > playlists;
1422         boost::shared_ptr<Diskstream> ds = get_diskstream();
1423         RadioMenuItem::Group playlist_group;
1424
1425         _session.get_playlists (playlists);
1426         
1427         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
1428
1429                 if ((*i)->get_orig_diskstream_id() == ds->id()) {
1430                         playlist_items.push_back (RadioMenuElem (playlist_group, (*i)->name(), bind (mem_fun (*this, &RouteTimeAxisView::use_playlist),
1431                                                                                                      boost::weak_ptr<Playlist> (*i))));
1432
1433                         if (ds->playlist()->id() == (*i)->id()) {
1434                                 static_cast<RadioMenuItem*>(&playlist_items.back())->set_active();
1435                         }
1436                 } else if (ds->playlist()->id() == (*i)->id()) {
1437                         playlist_items.push_back (RadioMenuElem (playlist_group, (*i)->name(), bind (mem_fun (*this, &RouteTimeAxisView::use_playlist), 
1438                                                                                                      boost::weak_ptr<Playlist>(*i))));
1439                         static_cast<RadioMenuItem*>(&playlist_items.back())->set_active();
1440                         
1441                 }
1442         }
1443
1444         playlist_items.push_back (SeparatorElem());
1445         playlist_items.push_back (MenuElem (_("Rename"), mem_fun(*this, &RouteTimeAxisView::rename_current_playlist)));
1446         playlist_items.push_back (SeparatorElem());
1447
1448         playlist_items.push_back (MenuElem (_("New"), bind(mem_fun(editor, &PublicEditor::new_playlists), this)));
1449         playlist_items.push_back (MenuElem (_("New Copy"), bind(mem_fun(editor, &PublicEditor::copy_playlists), this)));
1450         playlist_items.push_back (SeparatorElem());
1451         playlist_items.push_back (MenuElem (_("Clear Current"), bind(mem_fun(editor, &PublicEditor::clear_playlists), this)));
1452         playlist_items.push_back (SeparatorElem());
1453
1454         playlist_items.push_back (MenuElem(_("Select from all ..."), mem_fun(*this, &RouteTimeAxisView::show_playlist_selector)));
1455 }
1456
1457 void
1458 RouteTimeAxisView::use_playlist (boost::weak_ptr<Playlist> wpl)
1459 {
1460         assert (is_track());
1461
1462         boost::shared_ptr<Playlist> pl (wpl.lock());
1463
1464         if (!pl) {
1465                 return;
1466         }
1467
1468         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl);
1469         
1470         if (apl) {
1471                 get_diskstream()->use_playlist (apl);
1472         }
1473 }
1474
1475 void
1476 RouteTimeAxisView::show_playlist_selector ()
1477 {
1478         editor.playlist_selector().show_for (this);
1479 }
1480
1481 void
1482 RouteTimeAxisView::map_frozen ()
1483 {
1484         if (!is_track()) {
1485                 return;
1486         }
1487
1488         ENSURE_GUI_THREAD (mem_fun(*this, &RouteTimeAxisView::map_frozen));
1489
1490         switch (track()->freeze_state()) {
1491         case Track::Frozen:
1492                 playlist_button.set_sensitive (false);
1493                 rec_enable_button->set_sensitive (false);
1494                 break;
1495         default:
1496                 playlist_button.set_sensitive (true);
1497                 rec_enable_button->set_sensitive (true);
1498                 break;
1499         }
1500 }
1501
1502 void
1503 RouteTimeAxisView::color_handler ()
1504 {
1505         //case cTimeStretchOutline:
1506         if (timestretch_rect) {
1507                 timestretch_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeStretchOutline.get();
1508         }
1509         //case cTimeStretchFill:
1510         if (timestretch_rect) {
1511                 timestretch_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeStretchFill.get();
1512         }
1513
1514         reset_meter();
1515 }
1516
1517 void
1518 RouteTimeAxisView::toggle_automation_track (Parameter param)
1519 {
1520         RouteAutomationNode* node = automation_track(param);
1521
1522         if (!node)
1523                 return;
1524
1525         bool showit = node->menu_item->get_active();
1526
1527         if (showit != node->track->marked_for_display()) {
1528                 if (showit) {
1529                         node->track->set_marked_for_display (true);
1530                         node->track->canvas_display->show();
1531                         node->track->get_state_node()->add_property ("shown", X_("yes"));
1532                 } else {
1533                         node->track->set_marked_for_display (false);
1534                         node->track->hide ();
1535                         node->track->get_state_node()->add_property ("shown", X_("no"));
1536                 }
1537
1538                 /* now trigger a redisplay */
1539                 
1540                 if (!no_redraw) {
1541                          _route->gui_changed (X_("track_height"), (void *) 0); /* EMIT_SIGNAL */
1542                 }
1543         }
1544 }
1545
1546 void
1547 RouteTimeAxisView::automation_track_hidden (Parameter param)
1548 {
1549         RouteAutomationNode* ran = automation_track(param);
1550         if (!ran) {
1551                 return;
1552         }
1553
1554         _show_automation.erase(param);
1555         ran->track->get_state_node()->add_property (X_("shown"), X_("no"));
1556
1557         if (ran->menu_item && !_hidden) {
1558                 ran->menu_item->set_active (false);
1559         }
1560
1561          _route->gui_changed ("visible_tracks", (void *) 0); /* EMIT_SIGNAL */
1562 }
1563
1564
1565 void
1566 RouteTimeAxisView::show_all_automation ()
1567 {
1568         no_redraw = true;
1569         
1570         /* Show our automation */
1571
1572         map<ARDOUR::Parameter, RouteAutomationNode*>::iterator i;
1573         for (i = _automation_tracks.begin(); i != _automation_tracks.end(); ++i) {
1574                 i->second->track->set_marked_for_display (true);
1575                 i->second->track->canvas_display->show();
1576                 i->second->track->get_state_node()->add_property ("shown", X_("yes"));
1577                 i->second->menu_item->set_active(true);
1578         }
1579
1580
1581         /* Show processor automation */
1582
1583         for (list<ProcessorAutomationInfo*>::iterator i = processor_automation.begin(); i != processor_automation.end(); ++i) {
1584                 for (vector<ProcessorAutomationNode*>::iterator ii = (*i)->lines.begin(); ii != (*i)->lines.end(); ++ii) {
1585                         if ((*ii)->view == 0) {
1586                                 add_processor_automation_curve ((*i)->processor, (*ii)->what);
1587                         } 
1588
1589                         (*ii)->menu_item->set_active (true);
1590                 }
1591         }
1592
1593         no_redraw = false;
1594
1595         /* Redraw */
1596
1597          _route->gui_changed ("visible_tracks", (void *) 0); /* EMIT_SIGNAL */
1598 }
1599
1600 void
1601 RouteTimeAxisView::show_existing_automation ()
1602 {
1603         no_redraw = true;
1604         
1605         /* Show our automation */
1606
1607         map<ARDOUR::Parameter, RouteAutomationNode*>::iterator i;
1608         for (i = _automation_tracks.begin(); i != _automation_tracks.end(); ++i) {
1609                 if (i->second->track->line() && i->second->track->line()->npoints() > 0) {
1610                         i->second->track->set_marked_for_display (true);
1611                         i->second->track->canvas_display->show();
1612                         i->second->track->get_state_node()->add_property ("shown", X_("yes"));
1613                         i->second->menu_item->set_active(true);
1614                 }
1615         }
1616
1617
1618         /* Show processor automation */
1619
1620         for (list<ProcessorAutomationInfo*>::iterator i = processor_automation.begin(); i != processor_automation.end(); ++i) {
1621                 for (vector<ProcessorAutomationNode*>::iterator ii = (*i)->lines.begin(); ii != (*i)->lines.end(); ++ii) {
1622                         if ((*ii)->view != 0 && (*i)->processor->data().control((*ii)->what)->list()->size() > 0) {
1623                                 (*ii)->menu_item->set_active (true);
1624                         }
1625                 }
1626         }
1627
1628         no_redraw = false;
1629         
1630         _route->gui_changed ("visible_tracks", (void *) 0); /* EMIT_SIGNAL */
1631 }
1632
1633 void
1634 RouteTimeAxisView::hide_all_automation ()
1635 {
1636         no_redraw = true;
1637
1638         /* Hide our automation */
1639
1640         for (map<ARDOUR::Parameter, RouteAutomationNode*>::iterator i = _automation_tracks.begin(); i != _automation_tracks.end(); ++i) {
1641                 i->second->track->set_marked_for_display (false);
1642                 i->second->track->hide ();
1643                 i->second->track->get_state_node()->add_property ("shown", X_("no"));
1644                 i->second->menu_item->set_active (false);
1645         }
1646
1647         /* Hide processor automation */
1648
1649         for (list<ProcessorAutomationInfo*>::iterator i = processor_automation.begin(); i != processor_automation.end(); ++i) {
1650                 for (vector<ProcessorAutomationNode*>::iterator ii = (*i)->lines.begin(); ii != (*i)->lines.end(); ++ii) {
1651                         (*ii)->menu_item->set_active (false);
1652                 }
1653         }
1654
1655         _show_automation.clear();
1656
1657         no_redraw = false;
1658          _route->gui_changed ("visible_tracks", (void *) 0); /* EMIT_SIGNAL */
1659 }
1660
1661
1662 void
1663 RouteTimeAxisView::region_view_added (RegionView* rv)
1664 {
1665         /* XXX need to find out if automation children have automationstreamviews. If yes, no ghosts */
1666         if(is_audio_track()) {
1667                 for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1668                         boost::shared_ptr<AutomationTimeAxisView> atv;
1669                         
1670                         if ((atv = boost::dynamic_pointer_cast<AutomationTimeAxisView> (*i)) != 0) {
1671                                 atv->add_ghost(rv);
1672                         }
1673                 }
1674         }
1675
1676         for (UnderlayMirrorList::iterator i = _underlay_mirrors.begin(); i != _underlay_mirrors.end(); ++i) {
1677                 (*i)->add_ghost(rv);
1678         }
1679 }
1680
1681 RouteTimeAxisView::ProcessorAutomationInfo::~ProcessorAutomationInfo ()
1682 {
1683         for (vector<ProcessorAutomationNode*>::iterator i = lines.begin(); i != lines.end(); ++i) {
1684                 delete *i;
1685         }
1686 }
1687
1688
1689 RouteTimeAxisView::ProcessorAutomationNode::~ProcessorAutomationNode ()
1690 {
1691         parent.remove_processor_automation_node (this);
1692 }
1693
1694 void
1695 RouteTimeAxisView::remove_processor_automation_node (ProcessorAutomationNode* pan)
1696 {
1697         if (pan->view) {
1698                 remove_child (pan->view);
1699         }
1700 }
1701
1702 RouteTimeAxisView::ProcessorAutomationNode*
1703 RouteTimeAxisView::find_processor_automation_node (boost::shared_ptr<Processor> processor, Parameter what)
1704 {
1705         for (list<ProcessorAutomationInfo*>::iterator i = processor_automation.begin(); i != processor_automation.end(); ++i) {
1706
1707                 if ((*i)->processor == processor) {
1708
1709                         for (vector<ProcessorAutomationNode*>::iterator ii = (*i)->lines.begin(); ii != (*i)->lines.end(); ++ii) {
1710                                 if ((*ii)->what == what) {
1711                                         return *ii;
1712                                 }
1713                         }
1714                 }
1715         }
1716
1717         return 0;
1718 }
1719
1720 static string 
1721 legalize_for_xml_node (string str)
1722 {
1723         string::size_type pos;
1724         string legal_chars = "abcdefghijklmnopqrtsuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_=:";
1725         string legal;
1726
1727         legal = str;
1728         pos = 0;
1729
1730         while ((pos = legal.find_first_not_of (legal_chars, pos)) != string::npos) {
1731                 legal.replace (pos, 1, "_");
1732                 pos += 1;
1733         }
1734
1735         return legal;
1736 }
1737
1738
1739 void
1740 RouteTimeAxisView::add_processor_automation_curve (boost::shared_ptr<Processor> processor, Parameter what)
1741 {
1742         string name;
1743         ProcessorAutomationNode* pan;
1744
1745         if ((pan = find_processor_automation_node (processor, what)) == 0) {
1746                 fatal << _("programming error: ")
1747                       << string_compose (X_("processor automation curve for %1:%2 not registered with track!"),
1748                                   processor->name(), what)
1749                       << endmsg;
1750                 /*NOTREACHED*/
1751                 return;
1752         }
1753
1754         if (pan->view) {
1755                 return;
1756         }
1757
1758         name = processor->describe_parameter (what);
1759
1760         /* create a string that is a legal XML node name that can be used to refer to this redirect+port combination */
1761
1762         /* FIXME: ew */
1763
1764         char state_name[256];
1765         snprintf (state_name, sizeof (state_name), "Redirect-%s-%" PRIu32, legalize_for_xml_node (processor->name()).c_str(), what.id());
1766
1767         boost::shared_ptr<AutomationControl> control
1768                         = boost::dynamic_pointer_cast<AutomationControl>(processor->data().control(what, true));
1769
1770         pan->view = boost::shared_ptr<AutomationTimeAxisView>(
1771                         new AutomationTimeAxisView (_session, _route, processor, control,
1772                                 editor, *this, false, parent_canvas, name, state_name));
1773
1774         pan->view->Hiding.connect (bind (mem_fun(*this, &RouteTimeAxisView::processor_automation_track_hidden), pan, processor));
1775
1776         if (!pan->view->marked_for_display()) {
1777                 pan->view->hide ();
1778         } else {
1779                 pan->menu_item->set_active (true);
1780         }
1781
1782         add_child (pan->view);
1783
1784         if (_view) {
1785                 _view->foreach_regionview (mem_fun(*pan->view.get(), &TimeAxisView::add_ghost));
1786         }
1787
1788         processor->mark_automation_visible (what, true);
1789 }
1790
1791 void
1792 RouteTimeAxisView::processor_automation_track_hidden (RouteTimeAxisView::ProcessorAutomationNode* pan, boost::shared_ptr<Processor> i)
1793 {
1794         if (!_hidden) {
1795                 pan->menu_item->set_active (false);
1796         }
1797
1798         i->mark_automation_visible (pan->what, false);
1799
1800          _route->gui_changed ("visible_tracks", (void *) 0); /* EMIT_SIGNAL */
1801 }
1802
1803 void
1804 RouteTimeAxisView::add_existing_processor_automation_curves (boost::shared_ptr<Processor> processor)
1805 {
1806         set<Parameter> s;
1807         boost::shared_ptr<AutomationLine> al;
1808
1809         processor->what_has_visible_data (s);
1810
1811         for (set<Parameter>::iterator i = s.begin(); i != s.end(); ++i) {
1812                 
1813                 if ((al = find_processor_automation_curve (processor, *i)) != 0) {
1814                         al->queue_reset ();
1815                 } else {
1816                         add_processor_automation_curve (processor, (*i));
1817                 }
1818         }
1819 }
1820
1821 void
1822 RouteTimeAxisView::add_automation_child(Parameter param, boost::shared_ptr<AutomationTimeAxisView> track, bool show)
1823 {
1824         using namespace Menu_Helpers;
1825
1826         XMLProperty* prop;
1827         XMLNode* node;
1828
1829         add_child (track);
1830
1831         track->Hiding.connect (bind (mem_fun (*this, &RouteTimeAxisView::automation_track_hidden), param));
1832
1833         bool hideit = (!show);
1834
1835         if ((node = track->get_state_node()) != 0) {
1836                 if  ((prop = node->property ("shown")) != 0) {
1837                         if (prop->value() == "yes") {
1838                                 hideit = false;
1839                         }
1840                 } 
1841         }
1842
1843         _automation_tracks.insert(std::make_pair(param, new RouteAutomationNode(param, NULL, track)));
1844
1845         if (hideit) {
1846                 track->hide ();
1847         } else {
1848                 _show_automation.insert (param);
1849
1850
1851                 if (!no_redraw) {
1852                         _route->gui_changed ("visible_tracks", (void *) 0); /* EMIT_SIGNAL */
1853                 }
1854         }
1855
1856         build_display_menu();
1857 }
1858
1859
1860 void
1861 RouteTimeAxisView::add_processor_to_subplugin_menu (boost::shared_ptr<Processor> processor)
1862 {
1863         using namespace Menu_Helpers;
1864         ProcessorAutomationInfo *rai;
1865         list<ProcessorAutomationInfo*>::iterator x;
1866         
1867         const std::set<Parameter>& automatable = processor->what_can_be_automated ();
1868         std::set<Parameter> has_visible_automation;
1869
1870         processor->what_has_visible_data(has_visible_automation);
1871
1872         if (automatable.empty()) {
1873                 return;
1874         }
1875
1876         for (x = processor_automation.begin(); x != processor_automation.end(); ++x) {
1877                 if ((*x)->processor == processor) {
1878                         break;
1879                 }
1880         }
1881
1882         if (x == processor_automation.end()) {
1883
1884                 rai = new ProcessorAutomationInfo (processor);
1885                 processor_automation.push_back (rai);
1886
1887         } else {
1888
1889                 rai = *x;
1890
1891         }
1892
1893         /* any older menu was deleted at the top of processors_changed()
1894            when we cleared the subplugin menu.
1895         */
1896
1897         rai->menu = manage (new Menu);
1898         MenuList& items = rai->menu->items();
1899         rai->menu->set_name ("ArdourContextMenu");
1900
1901         items.clear ();
1902
1903         for (std::set<Parameter>::const_iterator i = automatable.begin(); i != automatable.end(); ++i) {
1904
1905                 ProcessorAutomationNode* pan;
1906                 CheckMenuItem* mitem;
1907                 
1908                 string name = processor->describe_parameter (*i);
1909                 
1910                 items.push_back (CheckMenuElem (name));
1911                 mitem = dynamic_cast<CheckMenuItem*> (&items.back());
1912
1913                 if (has_visible_automation.find((*i)) != has_visible_automation.end()) {
1914                         mitem->set_active(true);
1915                 }
1916
1917                 if ((pan = find_processor_automation_node (processor, *i)) == 0) {
1918
1919                         /* new item */
1920                         
1921                         pan = new ProcessorAutomationNode (*i, mitem, *this);
1922                         
1923                         rai->lines.push_back (pan);
1924
1925                 } else {
1926
1927                         pan->menu_item = mitem;
1928
1929                 }
1930
1931                 mitem->signal_toggled().connect (bind (mem_fun(*this, &RouteTimeAxisView::processor_menu_item_toggled), rai, pan));
1932         }
1933
1934         /* add the menu for this processor, because the subplugin
1935            menu is always cleared at the top of processors_changed().
1936            this is the result of some poor design in gtkmm and/or
1937            GTK+.
1938         */
1939
1940         subplugin_menu.items().push_back (MenuElem (processor->name(), *rai->menu));
1941         rai->valid = true;
1942 }
1943
1944 void
1945 RouteTimeAxisView::processor_menu_item_toggled (RouteTimeAxisView::ProcessorAutomationInfo* rai,
1946                                                RouteTimeAxisView::ProcessorAutomationNode* pan)
1947 {
1948         bool showit = pan->menu_item->get_active();
1949         bool redraw = false;
1950
1951         if (pan->view == 0 && showit) {
1952                 add_processor_automation_curve (rai->processor, pan->what);
1953                 redraw = true;
1954         }
1955
1956         if (pan->view && showit != pan->view->marked_for_display()) {
1957
1958                 if (showit) {
1959                         pan->view->set_marked_for_display (true);
1960                         pan->view->canvas_display->show();
1961                 } else {
1962                         rai->processor->mark_automation_visible (pan->what, true);
1963                         pan->view->set_marked_for_display (false);
1964                         pan->view->hide ();
1965                 }
1966
1967                 redraw = true;
1968
1969         }
1970
1971         if (redraw && !no_redraw) {
1972
1973                 /* now trigger a redisplay */
1974                 
1975                  _route->gui_changed ("visible_tracks", (void *) 0); /* EMIT_SIGNAL */
1976
1977         }
1978 }
1979
1980 void
1981 RouteTimeAxisView::processors_changed ()
1982 {
1983         using namespace Menu_Helpers;
1984         
1985         for (list<ProcessorAutomationInfo*>::iterator i = processor_automation.begin(); i != processor_automation.end(); ++i) {
1986                 (*i)->valid = false;
1987         }
1988
1989         subplugin_menu.items().clear ();
1990
1991         _route->foreach_processor (this, &RouteTimeAxisView::add_processor_to_subplugin_menu);
1992         _route->foreach_processor (this, &RouteTimeAxisView::add_existing_processor_automation_curves);
1993
1994         for (list<ProcessorAutomationInfo*>::iterator i = processor_automation.begin(); i != processor_automation.end(); ) {
1995
1996                 list<ProcessorAutomationInfo*>::iterator tmp;
1997
1998                 tmp = i;
1999                 ++tmp;
2000
2001                 if (!(*i)->valid) {
2002
2003                         delete *i;
2004                         processor_automation.erase (i);
2005
2006                 } 
2007
2008                 i = tmp;
2009         }
2010
2011         /* change in visibility was possible */
2012
2013         _route->gui_changed ("visible_tracks", this);
2014 }
2015
2016 boost::shared_ptr<AutomationLine>
2017 RouteTimeAxisView::find_processor_automation_curve (boost::shared_ptr<Processor> processor, Parameter what)
2018 {
2019         ProcessorAutomationNode* pan;
2020
2021         if ((pan = find_processor_automation_node (processor, what)) != 0) {
2022                 if (pan->view) {
2023                         pan->view->line();
2024                 } 
2025         }
2026
2027         return boost::shared_ptr<AutomationLine>();
2028 }
2029
2030 void
2031 RouteTimeAxisView::reset_processor_automation_curves ()
2032 {
2033         for (ProcessorAutomationCurves::iterator i = processor_automation_curves.begin(); i != processor_automation_curves.end(); ++i) {
2034                 (*i)->reset();
2035         }
2036 }
2037
2038 void
2039 RouteTimeAxisView::update_rec_display ()
2040 {
2041         RouteUI::update_rec_display ();
2042         name_entry.set_sensitive (!_route->record_enabled());
2043 }
2044                 
2045 void
2046 RouteTimeAxisView::set_layer_display (LayerDisplay d)
2047 {
2048         _view->set_layer_display (d);
2049 }
2050         
2051
2052 boost::shared_ptr<AutomationTimeAxisView>
2053 RouteTimeAxisView::automation_child(ARDOUR::Parameter param)
2054 {
2055         AutomationTracks::iterator i = _automation_tracks.find(param);
2056         if (i != _automation_tracks.end())
2057                 return i->second->track;
2058         else
2059                 return boost::shared_ptr<AutomationTimeAxisView>();
2060 }
2061
2062 void
2063 RouteTimeAxisView::fast_update ()
2064 {
2065         gm.get_level_meter().update_meters ();
2066 }
2067
2068 void
2069 RouteTimeAxisView::hide_meter ()
2070 {
2071         clear_meter ();
2072         gm.get_level_meter().hide_meters ();
2073 }
2074
2075 void
2076 RouteTimeAxisView::show_meter ()
2077 {
2078         reset_meter ();
2079 }
2080
2081 void
2082 RouteTimeAxisView::reset_meter ()
2083 {
2084         if (Config->get_show_track_meters()) {
2085                 gm.get_level_meter().setup_meters (height-5);
2086         } else {
2087                 hide_meter ();
2088         }
2089 }
2090
2091 void
2092 RouteTimeAxisView::clear_meter ()
2093 {
2094         gm.get_level_meter().clear_meters ();
2095 }
2096
2097 void
2098 RouteTimeAxisView::meter_changed (void *src)
2099 {
2100         ENSURE_GUI_THREAD (bind (mem_fun(*this, &RouteTimeAxisView::meter_changed), src));
2101         reset_meter();
2102 }
2103
2104 void
2105 RouteTimeAxisView::io_changed (IOChange change, void *src)
2106 {
2107         reset_meter ();
2108 }
2109
2110 void
2111 RouteTimeAxisView::build_underlay_menu(Gtk::Menu* parent_menu) {
2112         using namespace Menu_Helpers;
2113
2114         if(!_underlay_streams.empty()) {
2115                 MenuList& parent_items = parent_menu->items();
2116                 Menu* gs_menu = manage (new Menu);
2117                 gs_menu->set_name ("ArdourContextMenu");
2118                 MenuList& gs_items = gs_menu->items();
2119                 
2120                 parent_items.push_back (MenuElem (_("Underlays"), *gs_menu));
2121                 
2122                 for(UnderlayList::iterator it = _underlay_streams.begin(); it != _underlay_streams.end(); ++it) {
2123                         gs_items.push_back(MenuElem(string_compose(_("Remove \"%1\""), (*it)->trackview().name()),
2124                                                     bind(mem_fun(*this, &RouteTimeAxisView::remove_underlay), *it)));
2125                 }
2126         }
2127 }
2128
2129 bool
2130 RouteTimeAxisView::set_underlay_state() 
2131 {
2132         if(!underlay_xml_node) {
2133                 return false;
2134         }
2135
2136         XMLNodeList nlist = underlay_xml_node->children();
2137         XMLNodeConstIterator niter;
2138         XMLNode *child_node;
2139         
2140         for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
2141                 child_node = *niter;
2142
2143                 if(child_node->name() != "Underlay") {
2144                         continue;
2145                 }
2146
2147                 XMLProperty* prop = child_node->property ("id");
2148                 if(prop) {
2149                         PBD::ID id(prop->value());
2150
2151                         RouteTimeAxisView* v = editor.get_route_view_by_id(id);
2152
2153                         if(v) {
2154                                 add_underlay(v->view(), false);
2155                         }
2156                 }
2157         }
2158
2159         return false;
2160 }
2161
2162 void
2163 RouteTimeAxisView::add_underlay(StreamView* v, bool update_xml) 
2164 {
2165         if(!v) {
2166                 return;
2167         }
2168
2169         RouteTimeAxisView& other = v->trackview();
2170
2171         if(find(_underlay_streams.begin(), _underlay_streams.end(), v) == _underlay_streams.end()) {
2172                 if(find(other._underlay_mirrors.begin(), other._underlay_mirrors.end(), this) != other._underlay_mirrors.end()) {
2173                         fatal << _("programming error: underlay reference pointer pairs are inconsistent!") << endmsg;
2174                         /*NOTREACHED*/
2175                 }
2176
2177                 _underlay_streams.push_back(v);
2178                 other._underlay_mirrors.push_back(this);
2179
2180                 v->foreach_regionview(mem_fun(*this, &RouteTimeAxisView::add_ghost));
2181
2182                 if(update_xml) {
2183                         if(!underlay_xml_node) {
2184                                 ensure_xml_node();
2185                                 underlay_xml_node = xml_node->add_child("Underlays");
2186                         }
2187
2188                         XMLNode* node = underlay_xml_node->add_child("Underlay");
2189                         XMLProperty* prop = node->add_property("id");
2190                         prop->set_value(v->trackview().route()->id().to_s());
2191                 }
2192         }
2193 }
2194
2195 void
2196 RouteTimeAxisView::remove_underlay(StreamView* v) 
2197 {
2198         if(!v) {
2199                 return;
2200         }
2201
2202         UnderlayList::iterator it = find(_underlay_streams.begin(), _underlay_streams.end(), v);
2203         RouteTimeAxisView& other = v->trackview();
2204
2205         if(it != _underlay_streams.end()) {
2206                 UnderlayMirrorList::iterator gm = find(other._underlay_mirrors.begin(), other._underlay_mirrors.end(), this);
2207
2208                 if(gm == other._underlay_mirrors.end()) {
2209                         fatal << _("programming error: underlay reference pointer pairs are inconsistent!") << endmsg;
2210                         /*NOTREACHED*/
2211                 }
2212
2213                 v->foreach_regionview(mem_fun(*this, &RouteTimeAxisView::remove_ghost));
2214
2215                 _underlay_streams.erase(it);
2216                 other._underlay_mirrors.erase(gm);
2217
2218                 if(underlay_xml_node) {
2219                         underlay_xml_node->remove_nodes_and_delete("id", v->trackview().route()->id().to_s());
2220                 }
2221         }
2222 }
2223