011d2226f46ba281422bb9dc8bf5ff358d56b7c8
[ardour.git] / gtk2_ardour / processor_box.cc
1 /*
2     Copyright (C) 2000-2004 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
20 #ifdef WAF_BUILD
21 #include "gtk2ardour-config.h"
22 #endif
23
24 #include <cmath>
25 #include <iostream>
26 #include <set>
27
28 #include <sigc++/bind.h>
29
30 #include "pbd/convert.h"
31
32 #include <glibmm/miscutils.h>
33
34 #include <gtkmm/messagedialog.h>
35
36 #include <gtkmm2ext/gtk_ui.h>
37 #include <gtkmm2ext/utils.h>
38 #include <gtkmm2ext/choice.h>
39 #include <gtkmm2ext/utils.h>
40 #include <gtkmm2ext/doi.h>
41
42 #include "ardour/amp.h"
43 #include "ardour/audio_track.h"
44 #include "ardour/audioengine.h"
45 #include "ardour/internal_return.h"
46 #include "ardour/internal_send.h"
47 #include "ardour/plugin_insert.h"
48 #include "ardour/port_insert.h"
49 #include "ardour/profile.h"
50 #include "ardour/return.h"
51 #include "ardour/route.h"
52 #include "ardour/send.h"
53 #include "ardour/session.h"
54 #include "ardour/types.h"
55
56 #include "actions.h"
57 #include "ardour_dialog.h"
58 #include "ardour_ui.h"
59 #include "gui_thread.h"
60 #include "io_selector.h"
61 #include "keyboard.h"
62 #include "mixer_ui.h"
63 #include "mixer_strip.h"
64 #include "plugin_selector.h"
65 #include "plugin_ui.h"
66 #include "port_insert_ui.h"
67 #include "processor_box.h"
68 #include "public_editor.h"
69 #include "return_ui.h"
70 #include "route_processor_selection.h"
71 #include "send_ui.h"
72 #include "utils.h"
73
74 #include "i18n.h"
75
76 #ifdef AUDIOUNIT_SUPPORT
77 class AUPluginUI;
78 #endif
79
80 using namespace std;
81 using namespace ARDOUR;
82 using namespace PBD;
83 using namespace Gtk;
84 using namespace Glib;
85 using namespace Gtkmm2ext;
86
87 ProcessorBox* ProcessorBox::_current_processor_box = 0;
88 RefPtr<Action> ProcessorBox::paste_action;
89 RefPtr<Action> ProcessorBox::cut_action;
90 RefPtr<Action> ProcessorBox::rename_action;
91 RefPtr<Action> ProcessorBox::edit_action;
92 RefPtr<Action> ProcessorBox::edit_generic_action;
93
94 ProcessorEntry::ProcessorEntry (ProcessorBox* parent, boost::shared_ptr<Processor> p, Width w)
95         : _button (ArdourButton::led_default_elements)
96         , _position (PreFader)
97         , _parent (parent)
98         , _processor (p)
99         , _width (w)
100         , _visual_state (Gtk::STATE_NORMAL)
101 {
102         _vbox.show ();
103         
104         _button.set_diameter (3);
105         _button.set_distinct_led_click (true);
106         _button.set_led_left (true);
107         _button.signal_led_clicked.connect (sigc::mem_fun (*this, &ProcessorEntry::led_clicked));
108         _button.set_text (name (_width));
109
110         if (_processor) {
111
112                 _vbox.pack_start (_button, true, true);
113
114                 _button.set_active (_processor->active());
115                 _button.show ();
116
117                 _processor->ActiveChanged.connect (active_connection, invalidator (*this), boost::bind (&ProcessorEntry::processor_active_changed, this), gui_context());
118                 _processor->PropertyChanged.connect (name_connection, invalidator (*this), boost::bind (&ProcessorEntry::processor_property_changed, this, _1), gui_context());
119
120                 set<Evoral::Parameter> p = _processor->what_can_be_automated ();
121                 for (set<Evoral::Parameter>::iterator i = p.begin(); i != p.end(); ++i) {
122                         
123                         Control* c = new Control (_processor->automation_control (*i), _processor->describe_parameter (*i));
124                         
125                         _controls.push_back (c);
126
127                         if (boost::dynamic_pointer_cast<Amp> (_processor) == 0) {
128                                 /* Add non-Amp controls to the processor box */
129                                 _vbox.pack_start (c->box);
130                         }
131
132                         if (boost::dynamic_pointer_cast<Send> (_processor)) {
133                                 /* Don't label send faders */
134                                 c->hide_label ();
135                         }
136                 }
137
138                 setup_tooltip ();
139                 setup_visuals ();
140         } else {
141                 _vbox.set_size_request (-1, _button.size_request().height);
142         }
143 }
144
145 ProcessorEntry::~ProcessorEntry ()
146 {
147         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
148                 delete *i;
149         }
150 }
151
152 EventBox&
153 ProcessorEntry::action_widget ()
154 {
155         return _button;
156 }
157
158 Gtk::Widget&
159 ProcessorEntry::widget ()
160 {
161         return _vbox;
162 }
163
164 string
165 ProcessorEntry::drag_text () const
166 {
167         return name (Wide);
168 }
169
170 void
171 ProcessorEntry::set_position (Position p)
172 {
173         _position = p;
174         setup_visuals ();
175 }
176
177 void
178 ProcessorEntry::set_visual_state (Gtkmm2ext::VisualState s, bool yn)
179 {
180         if (yn) {
181                 _button.set_visual_state (Gtkmm2ext::VisualState (_button.visual_state() | s));
182         } else {
183                 _button.set_visual_state (Gtkmm2ext::VisualState (_button.visual_state() & ~s));
184         }
185 }
186
187 void
188 ProcessorEntry::setup_visuals ()
189 {
190         switch (_position) {
191         case PreFader:
192                 _button.set_name ("processor prefader");
193                 break;
194
195         case Fader:
196                 _button.set_name ("processor fader");
197                 break;
198
199         case PostFader:
200                 _button.set_name ("processor postfader");
201                 break;
202         }
203 }
204
205
206 boost::shared_ptr<Processor>
207 ProcessorEntry::processor () const
208 {
209         return _processor;
210 }
211
212 void
213 ProcessorEntry::set_enum_width (Width w)
214 {
215         _width = w;
216         _button.set_text (name (_width));
217 }
218
219 void
220 ProcessorEntry::led_clicked()
221 {
222         if (_processor) {
223                 if (_button.get_active ()) {
224                         _processor->deactivate ();
225                 } else {
226                         _processor->activate ();
227                 }
228         }
229 }
230
231 void
232 ProcessorEntry::processor_active_changed ()
233 {
234         if (_processor) {
235                 _button.set_active (_processor->active());
236         }
237 }
238
239 void
240 ProcessorEntry::processor_property_changed (const PropertyChange& what_changed)
241 {
242         if (what_changed.contains (ARDOUR::Properties::name)) {
243                 _button.set_text (name (_width));
244                 setup_tooltip ();
245         }
246 }
247
248 void
249 ProcessorEntry::setup_tooltip ()
250 {
251         if (_processor) {
252                 boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (_processor);
253                 if (pi) {
254                         if (pi->plugin()->has_editor()) {
255                                 ARDOUR_UI::instance()->set_tip (_button,
256                                                 string_compose (_("<b>%1</b>\nDouble-click to show GUI.\nAlt+double-click to show generic GUI."), name (Wide)));
257                         } else {
258                                 ARDOUR_UI::instance()->set_tip (_button,
259                                                 string_compose (_("<b>%1</b>\nDouble-click to show generic GUI."), name (Wide)));
260                         }
261                         return;
262                 }
263         }
264         ARDOUR_UI::instance()->set_tip (_button, string_compose ("<b>%1</b>", name (Wide)));
265 }
266
267 string
268 ProcessorEntry::name (Width w) const
269 {
270         boost::shared_ptr<Send> send;
271         string name_display;
272
273         if (!_processor) {
274                 return string();
275         }
276
277         if ((send = boost::dynamic_pointer_cast<Send> (_processor)) != 0 &&
278             !boost::dynamic_pointer_cast<InternalSend>(_processor)) {
279
280                 name_display += '>';
281
282                 /* grab the send name out of its overall name */
283
284                 string::size_type lbracket, rbracket;
285                 lbracket = send->name().find ('[');
286                 rbracket = send->name().find (']');
287
288                 switch (w) {
289                 case Wide:
290                         name_display += send->name().substr (lbracket+1, lbracket-rbracket-1);
291                         break;
292                 case Narrow:
293                         name_display += PBD::short_version (send->name().substr (lbracket+1, lbracket-rbracket-1), 4);
294                         break;
295                 }
296
297         } else {
298
299                 switch (w) {
300                 case Wide:
301                         name_display += _processor->display_name();
302                         break;
303                 case Narrow:
304                         name_display += PBD::short_version (_processor->display_name(), 5);
305                         break;
306                 }
307
308         }
309
310         return name_display;
311 }
312
313 void
314 ProcessorEntry::show_all_controls ()
315 {
316         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
317                 (*i)->set_visible (true);
318         }
319
320         _parent->update_gui_object_state (this);
321 }
322
323 void
324 ProcessorEntry::hide_all_controls ()
325 {
326         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
327                 (*i)->set_visible (false);
328         }
329
330         _parent->update_gui_object_state (this);
331 }
332
333 void
334 ProcessorEntry::add_control_state (XMLNode* node) const
335 {
336         for (list<Control*>::const_iterator i = _controls.begin(); i != _controls.end(); ++i) {
337                 (*i)->add_state (node);
338         }
339 }
340
341 void
342 ProcessorEntry::set_control_state (XMLNode const * node)
343 {
344         for (list<Control*>::const_iterator i = _controls.begin(); i != _controls.end(); ++i) {
345                 (*i)->set_state (node);
346         }
347 }
348
349 string
350 ProcessorEntry::state_id () const
351 {
352         return string_compose ("processor %1", _processor->id().to_s());
353 }
354
355 void
356 ProcessorEntry::hide_things ()
357 {
358         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
359                 (*i)->hide_things ();
360         }
361 }
362
363
364 Menu *
365 ProcessorEntry::build_controls_menu ()
366 {
367         using namespace Menu_Helpers;
368         Menu* menu = manage (new Menu);
369         MenuList& items = menu->items ();
370
371         items.push_back (
372                 MenuElem (_("Show All Controls"), sigc::mem_fun (*this, &ProcessorEntry::show_all_controls))
373                 );
374                 
375         items.push_back (
376                 MenuElem (_("Hide All Controls"), sigc::mem_fun (*this, &ProcessorEntry::hide_all_controls))
377                 );
378
379         if (!_controls.empty ()) {
380                 items.push_back (SeparatorElem ());
381         }
382         
383         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
384                 items.push_back (CheckMenuElem ((*i)->name ()));
385                 CheckMenuItem* c = dynamic_cast<CheckMenuItem*> (&items.back ());
386                 c->set_active ((*i)->visible ());
387                 c->signal_toggled().connect (sigc::bind (sigc::mem_fun (*this, &ProcessorEntry::toggle_control_visibility), *i));
388         }
389
390         return menu;
391 }
392
393 void
394 ProcessorEntry::toggle_control_visibility (Control* c)
395 {
396         c->set_visible (!c->visible ());
397         _parent->update_gui_object_state (this);
398 }
399
400 ProcessorEntry::Control::Control (boost::shared_ptr<AutomationControl> c, string const & n)
401         : _control (c)
402         , _adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()), 0, 1, 0.01, 0.1)
403         , _slider (&_adjustment, 0, 13, false)
404         , _slider_persistant_tooltip (&_slider)
405         , _button (ArdourButton::Element (ArdourButton::Text | ArdourButton::Indicator))
406         , _ignore_ui_adjustment (false)
407         , _visible (false)
408         , _name (n)
409 {
410         _slider.set_controllable (c);
411
412         if (c->toggled()) {
413                 _button.set_text (_name);
414                 _button.set_led_left (true);
415                 _button.set_name ("processor control button");
416                 box.pack_start (_button);
417                 _button.show ();
418
419                 _button.signal_clicked.connect (sigc::mem_fun (*this, &Control::button_clicked));
420                 _button.signal_led_clicked.connect (sigc::mem_fun (*this, &Control::button_clicked));
421                 c->Changed.connect (_connection, MISSING_INVALIDATOR, boost::bind (&Control::control_changed, this), gui_context ());
422
423         } else {
424                 
425                 _slider.set_name ("PluginSlider");
426                 _slider.set_text (_name);
427
428                 box.pack_start (_slider);
429                 _slider.show ();
430
431                 double const lo = c->internal_to_interface (c->lower ());
432                 double const up = c->internal_to_interface (c->upper ());
433                 
434                 _adjustment.set_lower (lo);
435                 _adjustment.set_upper (up);
436                 _adjustment.set_step_increment ((up - lo) / 100);
437                 _adjustment.set_page_increment ((up - lo) / 10);
438                 _slider.set_default_value (c->internal_to_interface (c->normal ()));
439                 
440                 _adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &Control::slider_adjusted));
441                 c->Changed.connect (_connection, MISSING_INVALIDATOR, boost::bind (&Control::control_changed, this), gui_context ());
442         }
443
444         ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &Control::control_changed));
445         
446         control_changed ();
447         set_tooltip ();
448
449         /* We're providing our own PersistentTooltip */
450         set_no_tooltip_whatsoever (_slider);
451 }
452
453 void
454 ProcessorEntry::Control::set_tooltip ()
455 {
456         boost::shared_ptr<AutomationControl> c = _control.lock ();
457
458         if (!c) {
459                 return;
460         }
461         
462         stringstream s;
463         s << _name << ": ";
464         if (c->toggled ()) {
465                 s << (c->get_value() > 0.5 ? _("on") : _("off"));
466         } else {
467                 s << setprecision(2) << fixed;
468                 s << c->internal_to_user (c->get_value ());
469         }
470
471         string sm = Glib::Markup::escape_text (s.str());
472         
473         ARDOUR_UI::instance()->set_tip (_label, sm);
474         _slider_persistant_tooltip.set_tip (sm);
475         ARDOUR_UI::instance()->set_tip (_button, sm);
476 }
477
478 void
479 ProcessorEntry::Control::slider_adjusted ()
480 {
481         if (_ignore_ui_adjustment) {
482                 return;
483         }
484         
485         boost::shared_ptr<AutomationControl> c = _control.lock ();
486
487         if (!c) {
488                 return;
489         }
490
491         c->set_value (c->interface_to_internal (_adjustment.get_value ()));
492         set_tooltip ();
493 }
494
495 void
496 ProcessorEntry::Control::button_clicked ()
497 {
498         boost::shared_ptr<AutomationControl> c = _control.lock ();
499
500         if (!c) {
501                 return;
502         }
503
504         bool const n = _button.get_active ();
505
506         c->set_value (n ? 0 : 1);
507         _button.set_active (!n);
508 }
509
510 void
511 ProcessorEntry::Control::control_changed ()
512 {
513         boost::shared_ptr<AutomationControl> c = _control.lock ();
514         if (!c) {
515                 return;
516         }
517
518         _ignore_ui_adjustment = true;
519
520         if (c->toggled ()) {
521
522                 _button.set_active (c->get_value() > 0.5);
523                 
524         } else {
525
526                 _adjustment.set_value (c->internal_to_interface (c->get_value ()));
527                 
528                 stringstream s;
529                 s.precision (1);
530                 s.setf (ios::fixed, ios::floatfield);
531                 s << c->internal_to_user (c->get_value ());
532         }
533         
534         _ignore_ui_adjustment = false;
535 }
536
537 void
538 ProcessorEntry::Control::add_state (XMLNode* node) const
539 {
540         XMLNode* c = new XMLNode (X_("Object"));
541         c->add_property (X_("id"), state_id ());
542         c->add_property (X_("visible"), _visible);
543         node->add_child_nocopy (*c);
544 }
545
546 void
547 ProcessorEntry::Control::set_state (XMLNode const * node)
548 {
549         XMLNode* n = GUIObjectState::get_node (node, state_id ());
550         if (n) {
551                 XMLProperty* p = n->property (X_("visible"));
552                 set_visible (p && string_is_affirmative (p->value ()));
553         } else {
554                 set_visible (false);
555         }
556 }
557
558 void
559 ProcessorEntry::Control::set_visible (bool v)
560 {
561         if (v) {
562                 box.show ();
563         } else {
564                 box.hide ();
565         }
566         
567         _visible = v;
568 }
569
570 /** Called when the Editor might have re-shown things that
571     we want hidden.
572 */
573 void
574 ProcessorEntry::Control::hide_things ()
575 {
576         if (!_visible) {
577                 box.hide ();
578         }
579 }
580
581 void
582 ProcessorEntry::Control::hide_label ()
583 {
584         _label.hide ();
585 }
586
587 string
588 ProcessorEntry::Control::state_id () const
589 {
590         boost::shared_ptr<AutomationControl> c = _control.lock ();
591         assert (c);
592
593         return string_compose (X_("control %1"), c->id().to_s ());
594 }
595
596 BlankProcessorEntry::BlankProcessorEntry (ProcessorBox* b, Width w)
597         : ProcessorEntry (b, boost::shared_ptr<Processor>(), w)
598 {
599 }
600
601 PluginInsertProcessorEntry::PluginInsertProcessorEntry (ProcessorBox* b, boost::shared_ptr<ARDOUR::PluginInsert> p, Width w)
602         : ProcessorEntry (b, p, w)
603         , _plugin_insert (p)
604 {
605         p->SplittingChanged.connect (
606                 _splitting_connection, invalidator (*this), boost::bind (&PluginInsertProcessorEntry::plugin_insert_splitting_changed, this), gui_context()
607                 );
608
609         _splitting_icon.set_size_request (-1, 12);
610
611         _vbox.pack_start (_splitting_icon);
612         _vbox.reorder_child (_splitting_icon, 0);
613
614         plugin_insert_splitting_changed ();
615 }
616
617 void
618 PluginInsertProcessorEntry::plugin_insert_splitting_changed ()
619 {
620         if (_plugin_insert->splitting ()) {
621                 _splitting_icon.set_branches(_plugin_insert->output_streams().n_audio());
622                 _splitting_icon.show ();
623         } else {
624                 _splitting_icon.hide ();
625         }
626 }
627
628 void
629 PluginInsertProcessorEntry::hide_things ()
630 {
631         ProcessorEntry::hide_things ();
632         plugin_insert_splitting_changed ();
633 }
634
635 void
636 PluginInsertProcessorEntry::setup_visuals ()
637 {
638         switch (_position) {
639         case PreFader:
640                 _splitting_icon.set_name ("ProcessorPreFader");
641                 break;
642
643         case Fader:
644                 _splitting_icon.set_name ("ProcessorFader");
645                 break;
646
647         case PostFader:
648                 _splitting_icon.set_name ("ProcessorPostFader");
649                 break;
650         }
651
652         ProcessorEntry::setup_visuals ();
653 }
654
655 bool
656 PluginInsertProcessorEntry::SplittingIcon::on_expose_event (GdkEventExpose* ev)
657 {
658         cairo_t* cr = gdk_cairo_create (get_window()->gobj());
659
660         cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
661         cairo_clip (cr);
662
663         cairo_set_line_width (cr, 1.5);
664         cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
665
666         Gtk::Allocation a = get_allocation();
667         double const width = a.get_width();
668         double const height = a.get_height();
669
670         Gdk::Color const bg = get_style()->get_bg (STATE_NORMAL);
671         cairo_set_source_rgb (cr, bg.get_red_p (), bg.get_green_p (), bg.get_blue_p ());
672
673         cairo_rectangle (cr, 0, 0, width, height);
674         cairo_fill (cr);
675
676         Gdk::Color const fg = get_style()->get_fg (STATE_NORMAL);
677         cairo_set_source_rgb (cr, fg.get_red_p (), fg.get_green_p (), fg.get_blue_p ());
678
679         const float si_l = rintf(width * 0.2) + .5f;
680         const float si_c = rintf(width * 0.5) + .5f;
681         const float si_r = rintf(width * 0.8) + .5f;
682         const float si_m = rintf(height * 0.5) + .5f;
683
684         cairo_move_to (cr, si_l, height);
685         cairo_line_to (cr, si_l, si_m);
686         cairo_line_to (cr, si_r, si_m);
687         cairo_line_to (cr, si_r, height);
688         cairo_stroke (cr);
689
690         cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
691
692         for (uint32_t i = 2; i < _branches; ++i) {
693                 const float si_b = rintf(width * (.2f + .6f * (i - 1.f) / (_branches - 1.f))) + .5f;
694                 cairo_move_to (cr, si_b, height);
695                 cairo_line_to (cr, si_b, si_m);
696                 cairo_stroke (cr);
697         }
698
699         cairo_move_to (cr, si_c, si_m);
700         cairo_line_to (cr, si_c, 0);
701         cairo_stroke (cr);
702
703         return true;
704 }
705
706 ProcessorBox::ProcessorBox (ARDOUR::Session* sess, boost::function<PluginSelector*()> get_plugin_selector,
707                             RouteProcessorSelection& rsel, MixerStrip* parent, bool owner_is_mixer)
708         : _parent_strip (parent)
709         , _owner_is_mixer (owner_is_mixer)
710         , ab_direction (true)
711         , _get_plugin_selector (get_plugin_selector)
712         , _placement (-1)
713         , _visible_prefader_processors (0)
714         , _rr_selection(rsel)
715         , _redisplay_pending (false)
716
717 {
718         set_session (sess);
719
720         _width = Wide;
721         processor_menu = 0;
722         no_processor_redisplay = false;
723
724         processor_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
725         processor_scroller.add (processor_display);
726         pack_start (processor_scroller, true, true);
727
728         processor_display.set_flags (CAN_FOCUS);
729         processor_display.set_name ("ProcessorList");
730         processor_display.set_data ("processorbox", this);
731         processor_display.set_size_request (48, -1);
732         processor_display.set_spacing (2);
733
734         processor_display.signal_enter_notify_event().connect (sigc::mem_fun(*this, &ProcessorBox::enter_notify), false);
735         processor_display.signal_leave_notify_event().connect (sigc::mem_fun(*this, &ProcessorBox::leave_notify), false);
736
737         processor_display.ButtonPress.connect (sigc::mem_fun (*this, &ProcessorBox::processor_button_press_event));
738         processor_display.ButtonRelease.connect (sigc::mem_fun (*this, &ProcessorBox::processor_button_release_event));
739
740         processor_display.Reordered.connect (sigc::mem_fun (*this, &ProcessorBox::reordered));
741         processor_display.DropFromAnotherBox.connect (sigc::mem_fun (*this, &ProcessorBox::object_drop));
742
743         processor_scroller.show ();
744         processor_display.show ();
745
746         if (parent) {
747                 parent->DeliveryChanged.connect (
748                         _mixer_strip_connections, invalidator (*this), boost::bind (&ProcessorBox::mixer_strip_delivery_changed, this, _1), gui_context ()
749                         );
750         }
751
752         ARDOUR_UI::instance()->set_tip (processor_display, _("Right-click to add/remove/edit\nplugins,inserts,sends and more"));
753 }
754
755 ProcessorBox::~ProcessorBox ()
756 {
757         /* it may appear as if we should delete processor_menu but that is a
758          * pointer to a widget owned by the UI Manager, and has potentially
759          * be returned to many other ProcessorBoxes. GTK doesn't really make
760          * clear the ownership of this widget, which is a menu and thus is
761          * never packed into any container other than an implict GtkWindow.
762          *
763          * For now, until or if we ever get clarification over the ownership
764          * story just let it continue to exist. At worst, its a small memory leak.
765          */
766 }
767
768 void
769 ProcessorBox::set_route (boost::shared_ptr<Route> r)
770 {
771         if (_route == r) {
772                 return;
773         }
774
775         _route_connections.drop_connections();
776
777         /* new route: any existing block on processor redisplay must be meaningless */
778         no_processor_redisplay = false;
779         _route = r;
780
781         _route->processors_changed.connect (
782                 _route_connections, invalidator (*this), boost::bind (&ProcessorBox::route_processors_changed, this, _1), gui_context()
783                 );
784
785         _route->DropReferences.connect (
786                 _route_connections, invalidator (*this), boost::bind (&ProcessorBox::route_going_away, this), gui_context()
787                 );
788
789         _route->PropertyChanged.connect (
790                 _route_connections, invalidator (*this), boost::bind (&ProcessorBox::route_property_changed, this, _1), gui_context()
791                 );
792
793         redisplay_processors ();
794 }
795
796 void
797 ProcessorBox::route_going_away ()
798 {
799         /* don't keep updating display as processors are deleted */
800         no_processor_redisplay = true;
801         _route.reset ();
802 }
803
804 void
805 ProcessorBox::object_drop(DnDVBox<ProcessorEntry>* source, ProcessorEntry* position, Glib::RefPtr<Gdk::DragContext> const & context)
806 {
807         boost::shared_ptr<Processor> p;
808         if (position) {
809                 p = position->processor ();
810                 if (!p) {
811                         /* dropped on the blank entry (which will be before the
812                            fader), so use the first non-blank child as our
813                            `dropped on' processor */
814                         list<ProcessorEntry*> c = processor_display.children ();
815                         list<ProcessorEntry*>::iterator i = c.begin ();
816                         while (dynamic_cast<BlankProcessorEntry*> (*i)) {
817                                 assert (i != c.end ());
818                                 ++i;
819                         }
820
821                         assert (i != c.end ());
822                         p = (*i)->processor ();
823                         assert (p);
824                 }
825         }
826
827         list<ProcessorEntry*> children = source->selection ();
828         list<boost::shared_ptr<Processor> > procs;
829         for (list<ProcessorEntry*>::const_iterator i = children.begin(); i != children.end(); ++i) {
830                 if ((*i)->processor ()) {
831                         procs.push_back ((*i)->processor ());
832                 }
833         }
834
835         for (list<boost::shared_ptr<Processor> >::const_iterator i = procs.begin(); i != procs.end(); ++i) {
836                 XMLNode& state = (*i)->get_state ();
837                 XMLNodeList nlist;
838                 nlist.push_back (&state);
839                 paste_processor_state (nlist, p);
840                 delete &state;
841         }
842
843         /* since the dndvbox doesn't take care of this properly, we have to delete the originals
844            ourselves.
845         */
846
847         if ((context->get_suggested_action() == Gdk::ACTION_MOVE) && source) {
848                 ProcessorBox* other = reinterpret_cast<ProcessorBox*> (source->get_data ("processorbox"));
849                 if (other) {
850                         other->delete_dragged_processors (procs);
851                 }
852         }
853 }
854
855 void
856 ProcessorBox::set_width (Width w)
857 {
858         if (_width == w) {
859                 return;
860         }
861
862         _width = w;
863
864         list<ProcessorEntry*> children = processor_display.children ();
865         for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
866                 (*i)->set_enum_width (w);
867         }
868
869         queue_resize ();
870 }
871
872 Gtk::Menu*
873 ProcessorBox::build_possible_aux_menu ()
874 {
875         boost::shared_ptr<RouteList> rl = _session->get_routes_with_internal_returns();
876
877         if (rl->empty()) {
878                 /* No aux sends if there are no busses */
879                 return 0;
880         }
881
882         using namespace Menu_Helpers;
883         Menu* menu = manage (new Menu);
884         MenuList& items = menu->items();
885
886         for (RouteList::iterator r = rl->begin(); r != rl->end(); ++r) {
887                 if (!_route->internal_send_for (*r) && *r != _route) {
888                         items.push_back (MenuElem ((*r)->name(), sigc::bind (sigc::ptr_fun (ProcessorBox::rb_choose_aux), boost::weak_ptr<Route>(*r))));
889                 }
890         }
891
892         return menu;
893 }
894
895 void
896 ProcessorBox::show_processor_menu (int arg)
897 {
898         if (processor_menu == 0) {
899                 processor_menu = build_processor_menu ();
900                 processor_menu->signal_unmap().connect (sigc::mem_fun (*this, &ProcessorBox::processor_menu_unmapped));
901         }
902
903         /* Sort out the plugin submenu */
904
905         Gtk::MenuItem* plugin_menu_item = dynamic_cast<Gtk::MenuItem*>(ActionManager::get_widget("/ProcessorMenu/newplugin"));
906
907         if (plugin_menu_item) {
908                 plugin_menu_item->set_submenu (*_get_plugin_selector()->plugin_menu());
909         }
910
911         /* And the aux submenu */
912
913         Gtk::MenuItem* aux_menu_item = dynamic_cast<Gtk::MenuItem*>(ActionManager::get_widget("/ProcessorMenu/newaux"));
914
915         if (aux_menu_item) {
916                 Menu* m = build_possible_aux_menu();
917                 if (m && !m->items().empty()) {
918                         aux_menu_item->set_submenu (*m);
919                         aux_menu_item->set_sensitive (true);
920                 } else {
921                         /* stupid gtkmm: we need to pass a null reference here */
922                         gtk_menu_item_set_submenu (aux_menu_item->gobj(), 0);
923                         aux_menu_item->set_sensitive (false);
924                 }
925         }
926
927         ProcessorEntry* single_selection = 0;
928         if (processor_display.selection().size() == 1) {
929                 single_selection = processor_display.selection().front();
930         }
931
932         /* And the controls submenu */
933
934         Gtk::MenuItem* controls_menu_item = dynamic_cast<Gtk::MenuItem*>(ActionManager::get_widget("/ProcessorMenu/controls"));
935
936         if (controls_menu_item) {
937                 if (single_selection) {
938                         Menu* m = single_selection->build_controls_menu ();
939                         if (m && !m->items().empty()) {
940                                 controls_menu_item->set_submenu (*m);
941                                 controls_menu_item->set_sensitive (true);
942                         } else {
943                                 gtk_menu_item_set_submenu (controls_menu_item->gobj(), 0);
944                                 controls_menu_item->set_sensitive (false);
945                         }
946                 }
947         }
948
949         /* Sensitise actions as approprioate */
950
951         cut_action->set_sensitive (can_cut());
952         paste_action->set_sensitive (!_rr_selection.processors.empty());
953
954         const bool sensitive = !processor_display.selection().empty();
955         ActionManager::set_sensitive (ActionManager::plugin_selection_sensitive_actions, sensitive);
956         edit_action->set_sensitive (one_processor_can_be_edited ());
957         edit_generic_action->set_sensitive (one_processor_can_be_edited ());
958
959         boost::shared_ptr<PluginInsert> pi;
960         if (single_selection) {
961                 pi = boost::dynamic_pointer_cast<PluginInsert> (single_selection->processor ());
962         }
963
964         /* allow editing with an Ardour-generated UI for plugin inserts with editors */
965         edit_action->set_sensitive (pi && pi->plugin()->has_editor ());
966
967         /* disallow rename for multiple selections, for plugin inserts and for the fader */
968         rename_action->set_sensitive (single_selection && !pi && !boost::dynamic_pointer_cast<Amp> (single_selection->processor ()));
969
970         processor_menu->popup (1, arg);
971
972         /* Add a placeholder gap to the processor list to indicate where a processor would be
973            inserted were one chosen from the menu.
974         */
975         int x, y;
976         processor_display.get_pointer (x, y);
977         _placement = processor_display.add_placeholder (y);
978
979         if (_visible_prefader_processors == 0 && _placement > 0) {
980                 --_placement;
981         }
982 }
983
984 bool
985 ProcessorBox::enter_notify (GdkEventCrossing*)
986 {
987         _current_processor_box = this;
988         return false;
989 }
990
991 bool
992 ProcessorBox::leave_notify (GdkEventCrossing*)
993 {
994         return false;
995 }
996
997 void
998 ProcessorBox::processor_operation (ProcessorOperation op) 
999 {
1000         ProcSelection targets;
1001
1002         get_selected_processors (targets);
1003
1004         if (targets.empty()) {
1005
1006                 int x, y;
1007                 processor_display.get_pointer (x, y);
1008
1009                 pair<ProcessorEntry *, double> const pointer = processor_display.get_child_at_position (y);
1010
1011                 if (pointer.first && pointer.first->processor()) {
1012                         targets.push_back (pointer.first->processor ());
1013                 }
1014         }
1015
1016         switch (op) {
1017         case ProcessorsSelectAll:
1018                 processor_display.select_all ();
1019                 break;
1020
1021         case ProcessorsCopy:
1022                 copy_processors (targets);
1023                 break;
1024
1025         case ProcessorsCut:
1026                 cut_processors (targets);
1027                 break;
1028
1029         case ProcessorsPaste:
1030                 if (targets.empty()) {
1031                         paste_processors ();
1032                 } else {
1033                         paste_processors (targets.front());
1034                 }
1035                 break;
1036
1037         case ProcessorsDelete:
1038                 delete_processors (targets);
1039                 break;
1040
1041         case ProcessorsToggleActive:
1042                 for (ProcSelection::iterator i = targets.begin(); i != targets.end(); ++i) {
1043                         if ((*i)->active()) {
1044                                 (*i)->deactivate ();
1045                         } else {
1046                                 (*i)->activate ();
1047                         }
1048                 }
1049                 break;
1050
1051         case ProcessorsAB:
1052                 ab_plugins ();
1053                 break;
1054
1055         default:
1056                 break;
1057         }
1058 }
1059
1060 ProcessorWindowProxy* 
1061 ProcessorBox::find_window_proxy (boost::shared_ptr<Processor> processor) const
1062 {
1063         for (list<ProcessorWindowProxy*>::const_iterator i = _processor_window_info.begin(); i != _processor_window_info.end(); ++i) {
1064                 boost::shared_ptr<Processor> p = (*i)->processor().lock();
1065
1066                 if (p && p == processor) {
1067                         return (*i);
1068                 }
1069         }
1070
1071         return 0;
1072 }
1073
1074
1075
1076 bool
1077 ProcessorBox::processor_button_press_event (GdkEventButton *ev, ProcessorEntry* child)
1078 {
1079         boost::shared_ptr<Processor> processor;
1080         if (child) {
1081                 processor = child->processor ();
1082         }
1083
1084         int ret = false;
1085         bool selected = processor_display.selected (child);
1086
1087         if (processor && (Keyboard::is_edit_event (ev) || (ev->button == 1 && ev->type == GDK_2BUTTON_PRESS))) {
1088
1089                 if (_session->engine().connected()) {
1090                         /* XXX giving an error message here is hard, because we may be in the midst of a button press */
1091
1092                         if (!one_processor_can_be_edited ()) return true;
1093
1094                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier)) {
1095                                 generic_edit_processor (processor);
1096                         } else {
1097                                 edit_processor (processor);
1098                         }
1099                 }
1100
1101                 ret = true;
1102
1103         } else if (processor && ev->button == 1 && selected) {
1104
1105                 // this is purely informational but necessary for route params UI
1106                 ProcessorSelected (processor); // emit
1107
1108         } else if (!processor && ev->button == 1 && ev->type == GDK_2BUTTON_PRESS) {
1109
1110                 choose_plugin ();
1111                 _get_plugin_selector()->show_manager ();
1112         }
1113
1114         return ret;
1115 }
1116
1117 bool
1118 ProcessorBox::processor_button_release_event (GdkEventButton *ev, ProcessorEntry* child)
1119 {
1120         boost::shared_ptr<Processor> processor;
1121         if (child) {
1122                 processor = child->processor ();
1123         }
1124
1125         if (processor && Keyboard::is_delete_event (ev)) {
1126
1127                 Glib::signal_idle().connect (sigc::bind (
1128                                 sigc::mem_fun(*this, &ProcessorBox::idle_delete_processor),
1129                                 boost::weak_ptr<Processor>(processor)));
1130
1131         } else if (Keyboard::is_context_menu_event (ev)) {
1132
1133                 show_processor_menu (ev->time);
1134
1135         } else if (processor && Keyboard::is_button2_event (ev)
1136 #ifndef GTKOSX
1137                    && (Keyboard::no_modifier_keys_pressed (ev) && ((ev->state & Gdk::BUTTON2_MASK) == Gdk::BUTTON2_MASK))
1138 #endif
1139                 ) {
1140
1141                 /* button2-click with no/appropriate modifiers */
1142
1143                 if (processor->active()) {
1144                         processor->deactivate ();
1145                 } else {
1146                         processor->activate ();
1147                 }
1148         }
1149
1150         return false;
1151 }
1152
1153 Menu *
1154 ProcessorBox::build_processor_menu ()
1155 {
1156         processor_menu = dynamic_cast<Gtk::Menu*>(ActionManager::get_widget("/ProcessorMenu") );
1157         processor_menu->set_name ("ArdourContextMenu");
1158         return processor_menu;
1159 }
1160
1161 void
1162 ProcessorBox::select_all_processors ()
1163 {
1164         processor_display.select_all ();
1165 }
1166
1167 void
1168 ProcessorBox::deselect_all_processors ()
1169 {
1170         processor_display.select_none ();
1171 }
1172
1173 void
1174 ProcessorBox::choose_plugin ()
1175 {
1176         _get_plugin_selector()->set_interested_object (*this);
1177 }
1178
1179 /** @return true if an error occurred, otherwise false */
1180 bool
1181 ProcessorBox::use_plugins (const SelectedPlugins& plugins)
1182 {
1183         for (SelectedPlugins::const_iterator p = plugins.begin(); p != plugins.end(); ++p) {
1184
1185                 boost::shared_ptr<Processor> processor (new PluginInsert (*_session, *p));
1186
1187                 Route::ProcessorStreams err_streams;
1188
1189                 if (_route->add_processor_by_index (processor, _placement, &err_streams, Config->get_new_plugins_active ())) {
1190                         weird_plugin_dialog (**p, err_streams);
1191                         return true;
1192                         // XXX SHAREDPTR delete plugin here .. do we even need to care?
1193                 } else {
1194
1195                         if (Profile->get_sae()) {
1196                                 processor->activate ();
1197                         }
1198                 }
1199         }
1200
1201         return false;
1202 }
1203
1204 void
1205 ProcessorBox::weird_plugin_dialog (Plugin& p, Route::ProcessorStreams streams)
1206 {
1207         ArdourDialog dialog (_("Plugin Incompatibility"));
1208         Label label;
1209
1210         string text = string_compose(_("You attempted to add the plugin \"%1\" in slot %2.\n"),
1211                         p.name(), streams.index);
1212
1213         bool has_midi  = streams.count.n_midi() > 0 || p.get_info()->n_inputs.n_midi() > 0;
1214         bool has_audio = streams.count.n_audio() > 0 || p.get_info()->n_inputs.n_audio() > 0;
1215
1216         text += _("\nThis plugin has:\n");
1217         if (has_midi) {
1218                 uint32_t const n = p.get_info()->n_inputs.n_midi ();
1219                 text += string_compose (ngettext ("\t%1 MIDI input\n", "\t%1 MIDI inputs\n", n), n);
1220         }
1221         if (has_audio) {
1222                 uint32_t const n = p.get_info()->n_inputs.n_audio ();
1223                 text += string_compose (ngettext ("\t%1 audio input\n", "\t%1 audio inputs\n", n), n);
1224         }
1225
1226         text += _("\nbut at the insertion point, there are:\n");
1227         if (has_midi) {
1228                 uint32_t const n = streams.count.n_midi ();
1229                 text += string_compose (ngettext ("\t%1 MIDI channel\n", "\t%1 MIDI channels\n", n), n);
1230         }
1231         if (has_audio) {
1232                 uint32_t const n = streams.count.n_audio ();
1233                 text += string_compose (ngettext ("\t%1 audio channel\n", "\t%1 audio channels\n", n), n);
1234         }
1235
1236         text += string_compose (_("\n%1 is unable to insert this plugin here.\n"), PROGRAM_NAME);
1237         label.set_text(text);
1238
1239         dialog.get_vbox()->pack_start (label);
1240         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1241
1242         dialog.set_name (X_("PluginIODialog"));
1243         dialog.set_modal (true);
1244         dialog.show_all ();
1245
1246         dialog.run ();
1247 }
1248
1249 void
1250 ProcessorBox::choose_insert ()
1251 {
1252         boost::shared_ptr<Processor> processor (new PortInsert (*_session, _route->pannable(), _route->mute_master()));
1253         _route->add_processor_by_index (processor, _placement);
1254 }
1255
1256 /* Caller must not hold process lock */
1257 void
1258 ProcessorBox::choose_send ()
1259 {
1260         boost::shared_ptr<Send> send (new Send (*_session, _route->pannable(), _route->mute_master()));
1261
1262         /* make an educated guess at the initial number of outputs for the send */
1263         ChanCount outs = (_session->master_out())
1264                         ? _session->master_out()->n_outputs()
1265                         : _route->n_outputs();
1266
1267         /* XXX need processor lock on route */
1268         try {
1269                 Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock());
1270                 send->output()->ensure_io (outs, false, this);
1271         } catch (AudioEngine::PortRegistrationFailure& err) {
1272                 error << string_compose (_("Cannot set up new send: %1"), err.what()) << endmsg;
1273                 return;
1274         }
1275
1276         /* let the user adjust the IO setup before creation.
1277
1278            Note: this dialog is NOT modal - we just leave it to run and it will
1279            return when its Finished signal is emitted - typically when the window
1280            is closed.
1281          */
1282
1283         IOSelectorWindow *ios = new IOSelectorWindow (_session, send->output(), true);
1284         ios->show ();
1285
1286         /* keep a reference to the send so it doesn't get deleted while
1287            the IOSelectorWindow is doing its stuff
1288         */
1289         _processor_being_created = send;
1290
1291         ios->selector().Finished.connect (sigc::bind (
1292                         sigc::mem_fun(*this, &ProcessorBox::send_io_finished),
1293                         boost::weak_ptr<Processor>(send), ios));
1294
1295 }
1296
1297 void
1298 ProcessorBox::send_io_finished (IOSelector::Result r, boost::weak_ptr<Processor> weak_processor, IOSelectorWindow* ios)
1299 {
1300         boost::shared_ptr<Processor> processor (weak_processor.lock());
1301
1302         /* drop our temporary reference to the new send */
1303         _processor_being_created.reset ();
1304
1305         if (!processor) {
1306                 return;
1307         }
1308
1309         switch (r) {
1310         case IOSelector::Cancelled:
1311                 // processor will go away when all shared_ptrs to it vanish
1312                 break;
1313
1314         case IOSelector::Accepted:
1315                 _route->add_processor_by_index (processor, _placement);
1316                 if (Profile->get_sae()) {
1317                         processor->activate ();
1318                 }
1319                 break;
1320         }
1321
1322         delete_when_idle (ios);
1323 }
1324
1325 void
1326 ProcessorBox::return_io_finished (IOSelector::Result r, boost::weak_ptr<Processor> weak_processor, IOSelectorWindow* ios)
1327 {
1328         boost::shared_ptr<Processor> processor (weak_processor.lock());
1329
1330         /* drop our temporary reference to the new return */
1331         _processor_being_created.reset ();
1332
1333         if (!processor) {
1334                 return;
1335         }
1336
1337         switch (r) {
1338         case IOSelector::Cancelled:
1339                 // processor will go away when all shared_ptrs to it vanish
1340                 break;
1341
1342         case IOSelector::Accepted:
1343                 _route->add_processor_by_index (processor, _placement);
1344                 if (Profile->get_sae()) {
1345                         processor->activate ();
1346                 }
1347                 break;
1348         }
1349
1350         delete_when_idle (ios);
1351 }
1352
1353 void
1354 ProcessorBox::choose_aux (boost::weak_ptr<Route> wr)
1355 {
1356         if (!_route) {
1357                 return;
1358         }
1359
1360         boost::shared_ptr<Route> target = wr.lock();
1361
1362         if (!target) {
1363                 return;
1364         }
1365
1366         _session->add_internal_send (target, _placement, _route);
1367 }
1368
1369 void
1370 ProcessorBox::route_processors_changed (RouteProcessorChange c)
1371 {
1372         if (c.type == RouteProcessorChange::MeterPointChange && c.meter_visibly_changed == false) {
1373                 /* the meter has moved, but it was and still is invisible to the user, so nothing to do */
1374                 return;
1375         }
1376
1377         redisplay_processors ();
1378 }
1379
1380 void
1381 ProcessorBox::redisplay_processors ()
1382 {
1383         ENSURE_GUI_THREAD (*this, &ProcessorBox::redisplay_processors);
1384         bool     fader_seen;
1385
1386         if (no_processor_redisplay) {
1387                 return;
1388         }
1389
1390         processor_display.clear ();
1391
1392         _visible_prefader_processors = 0;
1393         fader_seen = false;
1394
1395         _route->foreach_processor (sigc::bind (sigc::mem_fun (*this, &ProcessorBox::help_count_visible_prefader_processors), 
1396                                                &_visible_prefader_processors, &fader_seen));
1397
1398         if (_visible_prefader_processors == 0) { // fader only
1399                 BlankProcessorEntry* bpe = new BlankProcessorEntry (this, _width);
1400                 processor_display.add_child (bpe);
1401         }
1402
1403         _route->foreach_processor (sigc::mem_fun (*this, &ProcessorBox::add_processor_to_display));
1404
1405         for (ProcessorWindowProxies::iterator i = _processor_window_info.begin(); i != _processor_window_info.end(); ++i) {
1406                 (*i)->marked = false;
1407         }
1408
1409         _route->foreach_processor (sigc::mem_fun (*this, &ProcessorBox::maybe_add_processor_to_ui_list));
1410
1411         /* trim dead wood from the processor window proxy list */
1412
1413         ProcessorWindowProxies::iterator i = _processor_window_info.begin();
1414         while (i != _processor_window_info.end()) {
1415                 ProcessorWindowProxies::iterator j = i;
1416                 ++j;
1417
1418                 if (!(*i)->valid()) {
1419
1420                         WM::Manager::instance().remove (*i);
1421                         delete *i;
1422                         _processor_window_info.erase (i);
1423                         
1424                 } else if (!(*i)->marked) {
1425
1426                         /* this processor is no longer part of this processor
1427                          * box.
1428                          *
1429                          * that could be because it was deleted or it could be
1430                          * because the route being displayed in the parent
1431                          * strip changed.
1432                          *
1433                          * The latter only happens with the editor mixer strip.
1434                          */
1435
1436                         if (is_editor_mixer_strip()) {
1437                                 
1438                                 /* editor mixer strip .. DO NOTHING
1439                                  *
1440                                  * note: the processor window stays visible if
1441                                  * it is already visible
1442                                  */
1443                         } else {
1444                                 (*i)->hide ();
1445                                 WM::Manager::instance().remove (*i);
1446                                 delete *i;
1447                                 _processor_window_info.erase (i);
1448                         } 
1449                 } 
1450
1451                 i = j;
1452         }
1453
1454         setup_entry_positions ();
1455 }
1456
1457 /** Add a ProcessorWindowProxy for a processor to our list, if that processor does
1458  *  not already have one.
1459  */
1460 void
1461 ProcessorBox::maybe_add_processor_to_ui_list (boost::weak_ptr<Processor> w)
1462 {
1463         boost::shared_ptr<Processor> p = w.lock ();
1464         if (!p) {
1465                 return;
1466         }
1467
1468         ProcessorWindowProxies::iterator i = _processor_window_info.begin ();
1469         while (i != _processor_window_info.end()) {
1470
1471                 boost::shared_ptr<Processor> t = (*i)->processor().lock ();
1472
1473                 if (p == t) {
1474                         /* this processor is already on the list; done */
1475                         (*i)->marked = true;
1476                         return;
1477                 }
1478
1479                 ++i;
1480         }
1481
1482         /* not on the list; add it */
1483
1484         string loc;
1485         if (_parent_strip) {
1486                 if (_parent_strip->mixer_owned()) {
1487                         loc = X_("M");
1488                 } else {
1489                         loc = X_("R");
1490                 }
1491         } else {
1492                 loc = X_("P");
1493         }
1494
1495         ProcessorWindowProxy* wp = new ProcessorWindowProxy (
1496                 string_compose ("%1-%2-%3", loc, _route->id(), p->id()),
1497                 this,
1498                 w);
1499
1500         const XMLNode* ui_xml = _session->extra_xml (X_("UI"));
1501
1502         if (ui_xml) {
1503                 wp->set_state (*ui_xml);
1504         }
1505         
1506         wp->marked = true;
1507
1508         /* if the processor already has an existing UI,
1509            note that so that we don't recreate it
1510         */
1511
1512         void* existing_ui = p->get_ui ();
1513
1514         if (existing_ui) {
1515                 wp->use_window (*(reinterpret_cast<Gtk::Window*>(existing_ui)));
1516         }
1517
1518         _processor_window_info.push_back (wp);
1519         WM::Manager::instance().register_window (wp);
1520 }
1521
1522 void
1523 ProcessorBox::help_count_visible_prefader_processors (boost::weak_ptr<Processor> p, uint32_t* cnt, bool* amp_seen)
1524 {
1525         boost::shared_ptr<Processor> processor (p.lock ());
1526
1527         if (processor && processor->display_to_user()) {
1528
1529                 if (boost::dynamic_pointer_cast<Amp>(processor)) {
1530                         *amp_seen = true;
1531                 } else {
1532                         if (!*amp_seen) {
1533                                 (*cnt)++;
1534                         }
1535                 }
1536         }
1537 }
1538
1539 void
1540 ProcessorBox::add_processor_to_display (boost::weak_ptr<Processor> p)
1541 {
1542         boost::shared_ptr<Processor> processor (p.lock ());
1543
1544         if (!processor || !processor->display_to_user()) {
1545                 return;
1546         }
1547
1548         boost::shared_ptr<PluginInsert> plugin_insert = boost::dynamic_pointer_cast<PluginInsert> (processor);
1549         ProcessorEntry* e = 0;
1550         if (plugin_insert) {
1551                 e = new PluginInsertProcessorEntry (this, plugin_insert, _width);
1552         } else {
1553                 e = new ProcessorEntry (this, processor, _width);
1554         }
1555
1556         /* Set up this entry's state from the GUIObjectState */
1557         XMLNode* proc = entry_gui_object_state (e);
1558         if (proc) {
1559                 e->set_control_state (proc);
1560         }
1561         
1562         if (boost::dynamic_pointer_cast<Send> (processor)) {
1563                 /* Always show send controls */
1564                 e->show_all_controls ();
1565         }
1566
1567         processor_display.add_child (e);
1568 }
1569
1570 void
1571 ProcessorBox::reordered ()
1572 {
1573         compute_processor_sort_keys ();
1574         setup_entry_positions ();
1575 }
1576
1577 void
1578 ProcessorBox::setup_entry_positions ()
1579 {
1580         list<ProcessorEntry*> children = processor_display.children ();
1581         bool pre_fader = true;
1582
1583         for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
1584                 if (boost::dynamic_pointer_cast<Amp>((*i)->processor())) {
1585                         pre_fader = false;
1586                         (*i)->set_position (ProcessorEntry::Fader);
1587                 } else {
1588                         if (pre_fader) {
1589                                 (*i)->set_position (ProcessorEntry::PreFader);
1590                         } else {
1591                                 (*i)->set_position (ProcessorEntry::PostFader);
1592                         }
1593                 }
1594         }
1595 }
1596
1597 void
1598 ProcessorBox::compute_processor_sort_keys ()
1599 {
1600         list<ProcessorEntry*> children = processor_display.children ();
1601         Route::ProcessorList our_processors;
1602
1603         for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
1604                 if ((*i)->processor()) {
1605                         our_processors.push_back ((*i)->processor ());
1606                 }
1607         }
1608
1609         if (_route->reorder_processors (our_processors)) {
1610                 /* Reorder failed, so report this to the user.  As far as I can see this must be done
1611                    in an idle handler: it seems that the redisplay_processors() that happens below destroys
1612                    widgets that were involved in the drag-and-drop on the processor list, which causes problems
1613                    when the drag is torn down after this handler function is finished.
1614                 */
1615                 Glib::signal_idle().connect_once (sigc::mem_fun (*this, &ProcessorBox::report_failed_reorder));
1616         }
1617 }
1618
1619 void
1620 ProcessorBox::report_failed_reorder ()
1621 {
1622         /* reorder failed, so redisplay */
1623
1624         redisplay_processors ();
1625
1626         /* now tell them about the problem */
1627
1628         ArdourDialog dialog (_("Plugin Incompatibility"));
1629         Label label;
1630
1631         label.set_text (_("\
1632 You cannot reorder these plugins/sends/inserts\n\
1633 in that way because the inputs and\n\
1634 outputs will not work correctly."));
1635
1636         dialog.get_vbox()->set_border_width (12);
1637         dialog.get_vbox()->pack_start (label);
1638         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1639
1640         dialog.set_name (X_("PluginIODialog"));
1641         dialog.set_modal (true);
1642         dialog.show_all ();
1643
1644         dialog.run ();
1645 }
1646
1647 void
1648 ProcessorBox::rename_processors ()
1649 {
1650         ProcSelection to_be_renamed;
1651
1652         get_selected_processors (to_be_renamed);
1653
1654         if (to_be_renamed.empty()) {
1655                 return;
1656         }
1657
1658         for (ProcSelection::iterator i = to_be_renamed.begin(); i != to_be_renamed.end(); ++i) {
1659                 rename_processor (*i);
1660         }
1661 }
1662
1663 bool
1664 ProcessorBox::can_cut () const
1665 {
1666         vector<boost::shared_ptr<Processor> > sel;
1667
1668         get_selected_processors (sel);
1669
1670         /* cut_processors () does not cut inserts */
1671
1672         for (vector<boost::shared_ptr<Processor> >::const_iterator i = sel.begin (); i != sel.end (); ++i) {
1673
1674                 if (boost::dynamic_pointer_cast<PluginInsert>((*i)) != 0 ||
1675                     (boost::dynamic_pointer_cast<Send>((*i)) != 0) ||
1676                     (boost::dynamic_pointer_cast<Return>((*i)) != 0)) {
1677                         return true;
1678                 }
1679         }
1680
1681         return false;
1682 }
1683
1684 void
1685 ProcessorBox::cut_processors (const ProcSelection& to_be_removed)
1686 {
1687         if (to_be_removed.empty()) {
1688                 return;
1689         }
1690
1691         XMLNode* node = new XMLNode (X_("cut"));
1692         Route::ProcessorList to_cut;
1693
1694         no_processor_redisplay = true;
1695         for (ProcSelection::const_iterator i = to_be_removed.begin(); i != to_be_removed.end(); ++i) {
1696                 // Cut only plugins, sends and returns
1697                 if (boost::dynamic_pointer_cast<PluginInsert>((*i)) != 0 ||
1698                     (boost::dynamic_pointer_cast<Send>((*i)) != 0) ||
1699                     (boost::dynamic_pointer_cast<Return>((*i)) != 0)) {
1700
1701                         Window* w = get_processor_ui (*i);
1702
1703                         if (w) {
1704                                 w->hide ();
1705                         }
1706
1707                         XMLNode& child ((*i)->get_state());
1708                         node->add_child_nocopy (child);
1709                         to_cut.push_back (*i);
1710                 }
1711         }
1712
1713         if (_route->remove_processors (to_cut) != 0) {
1714                 delete node;
1715                 no_processor_redisplay = false;
1716                 return;
1717         }
1718
1719         _rr_selection.set (node);
1720
1721         no_processor_redisplay = false;
1722         redisplay_processors ();
1723 }
1724
1725 void
1726 ProcessorBox::copy_processors (const ProcSelection& to_be_copied)
1727 {
1728         if (to_be_copied.empty()) {
1729                 return;
1730         }
1731
1732         XMLNode* node = new XMLNode (X_("copy"));
1733
1734         for (ProcSelection::const_iterator i = to_be_copied.begin(); i != to_be_copied.end(); ++i) {
1735                 // Copy only plugins, sends, returns
1736                 if (boost::dynamic_pointer_cast<PluginInsert>((*i)) != 0 ||
1737                     (boost::dynamic_pointer_cast<Send>((*i)) != 0) ||
1738                     (boost::dynamic_pointer_cast<Return>((*i)) != 0)) {
1739                         node->add_child_nocopy ((*i)->get_state());
1740                 }
1741         }
1742
1743         _rr_selection.set (node);
1744 }
1745
1746 void
1747 ProcessorBox::delete_processors (const ProcSelection& targets)
1748 {
1749         if (targets.empty()) {
1750                 return;
1751         }
1752
1753         no_processor_redisplay = true;
1754
1755         for (ProcSelection::const_iterator i = targets.begin(); i != targets.end(); ++i) {
1756
1757                 Window* w = get_processor_ui (*i);
1758
1759                 if (w) {
1760                         w->hide ();
1761                 }
1762
1763                 _route->remove_processor(*i);
1764         }
1765
1766         no_processor_redisplay = false;
1767         redisplay_processors ();
1768 }
1769
1770 void
1771 ProcessorBox::delete_dragged_processors (const list<boost::shared_ptr<Processor> >& procs)
1772 {
1773         list<boost::shared_ptr<Processor> >::const_iterator x;
1774
1775         no_processor_redisplay = true;
1776         for (x = procs.begin(); x != procs.end(); ++x) {
1777
1778                 Window* w = get_processor_ui (*x);
1779
1780                 if (w) {
1781                         w->hide ();
1782                 }
1783
1784                 _route->remove_processor(*x);
1785         }
1786
1787         no_processor_redisplay = false;
1788         redisplay_processors ();
1789 }
1790
1791 gint
1792 ProcessorBox::idle_delete_processor (boost::weak_ptr<Processor> weak_processor)
1793 {
1794         boost::shared_ptr<Processor> processor (weak_processor.lock());
1795
1796         if (!processor) {
1797                 return false;
1798         }
1799
1800         /* NOT copied to _mixer.selection() */
1801
1802         no_processor_redisplay = true;
1803         _route->remove_processor (processor);
1804         no_processor_redisplay = false;
1805         redisplay_processors ();
1806
1807         return false;
1808 }
1809
1810 void
1811 ProcessorBox::rename_processor (boost::shared_ptr<Processor> processor)
1812 {
1813         ArdourPrompter name_prompter (true);
1814         string result;
1815         name_prompter.set_title (_("Rename Processor"));
1816         name_prompter.set_prompt (_("New name:"));
1817         name_prompter.set_initial_text (processor->name());
1818         name_prompter.add_button (_("Rename"), Gtk::RESPONSE_ACCEPT);
1819         name_prompter.set_response_sensitive (Gtk::RESPONSE_ACCEPT, false);
1820         name_prompter.show_all ();
1821
1822         switch (name_prompter.run ()) {
1823
1824         case Gtk::RESPONSE_ACCEPT:
1825                 name_prompter.get_result (result);
1826                 if (result.length()) {
1827
1828                        int tries = 0;
1829                        string test = result;
1830
1831                        while (tries < 100) {
1832                                if (_session->io_name_is_legal (test)) {
1833                                        result = test;
1834                                        break;
1835                                }
1836                                tries++;
1837
1838                                test = string_compose ("%1-%2", result, tries);
1839                        }
1840
1841                        if (tries < 100) {
1842                                processor->set_name (result);
1843                        } else {
1844                                /* unlikely! */
1845                                ARDOUR_UI::instance()->popup_error
1846                                        (string_compose (_("At least 100 IO objects exist with a name like %1 - name not changed"), result));
1847                        }
1848                 }
1849                 break;
1850         }
1851
1852         return;
1853 }
1854
1855 void
1856 ProcessorBox::paste_processors ()
1857 {
1858         if (_rr_selection.processors.empty()) {
1859                 return;
1860         }
1861
1862         paste_processor_state (_rr_selection.processors.get_node().children(), boost::shared_ptr<Processor>());
1863 }
1864
1865 void
1866 ProcessorBox::paste_processors (boost::shared_ptr<Processor> before)
1867 {
1868
1869         if (_rr_selection.processors.empty()) {
1870                 return;
1871         }
1872
1873         paste_processor_state (_rr_selection.processors.get_node().children(), before);
1874 }
1875
1876 void
1877 ProcessorBox::paste_processor_state (const XMLNodeList& nlist, boost::shared_ptr<Processor> p)
1878 {
1879         XMLNodeConstIterator niter;
1880         list<boost::shared_ptr<Processor> > copies;
1881
1882         if (nlist.empty()) {
1883                 return;
1884         }
1885
1886         for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
1887
1888                 XMLProperty const * type = (*niter)->property ("type");
1889                 XMLProperty const * role = (*niter)->property ("role");
1890                 assert (type);
1891
1892                 boost::shared_ptr<Processor> p;
1893                 try {
1894                         if (type->value() == "meter" ||
1895                             type->value() == "main-outs" ||
1896                             type->value() == "amp" ||
1897                             type->value() == "intreturn") {
1898                                 /* do not paste meter, main outs, amp or internal returns */
1899                                 continue;
1900
1901                         } else if (type->value() == "intsend") {
1902                                 
1903                                 /* aux sends are OK, but those used for
1904                                  * other purposes, are not.
1905                                  */
1906                                 
1907                                 assert (role);
1908
1909                                 if (role->value() != "Aux") {
1910                                         continue;
1911                                 }
1912
1913                                 XMLNode n (**niter);
1914                                 InternalSend* s = new InternalSend (*_session, _route->pannable(), _route->mute_master(),
1915                                                                     boost::shared_ptr<Route>(), Delivery::Aux); 
1916
1917                                 IOProcessor::prepare_for_reset (n, s->name());
1918
1919                                 if (s->set_state (n, Stateful::loading_state_version)) {
1920                                         delete s;
1921                                         return;
1922                                 }
1923
1924                                 p.reset (s);
1925
1926                         } else if (type->value() == "send") {
1927
1928                                 XMLNode n (**niter);
1929                                 Send* s = new Send (*_session, _route->pannable(), _route->mute_master());
1930
1931                                 IOProcessor::prepare_for_reset (n, s->name());
1932                                 
1933                                 if (s->set_state (n, Stateful::loading_state_version)) {
1934                                         delete s;
1935                                         return;
1936                                 }
1937
1938                                 p.reset (s);
1939
1940                         } else if (type->value() == "return") {
1941
1942                                 XMLNode n (**niter);
1943                                 Return* r = new Return (*_session);
1944
1945                                 IOProcessor::prepare_for_reset (n, r->name());
1946
1947                                 if (r->set_state (n, Stateful::loading_state_version)) {
1948                                         delete r;
1949                                         return;
1950                                 }
1951
1952                                 p.reset (r);
1953
1954                         } else if (type->value() == "port") {
1955
1956                                 XMLNode n (**niter);
1957                                 PortInsert* pi = new PortInsert (*_session, _route->pannable (), _route->mute_master ());
1958                                 
1959                                 IOProcessor::prepare_for_reset (n, pi->name());
1960                                 
1961                                 if (pi->set_state (n, Stateful::loading_state_version)) {
1962                                         return;
1963                                 }
1964                                 
1965                                 p.reset (pi);
1966
1967                         } else {
1968                                 /* XXX its a bit limiting to assume that everything else
1969                                    is a plugin.
1970                                 */
1971
1972                                 p.reset (new PluginInsert (*_session));
1973                                 p->set_state (**niter, Stateful::current_state_version);
1974                         }
1975
1976                         copies.push_back (p);
1977                 }
1978
1979                 catch (...) {
1980                         error << _("plugin insert constructor failed") << endmsg;
1981                 }
1982         }
1983
1984         if (copies.empty()) {
1985                 return;
1986         }
1987
1988         if (_route->add_processors (copies, p)) {
1989
1990                 string msg = _(
1991                         "Copying the set of processors on the clipboard failed,\n\
1992 probably because the I/O configuration of the plugins\n\
1993 could not match the configuration of this track.");
1994                 MessageDialog am (msg);
1995                 am.run ();
1996         }
1997 }
1998
1999 void
2000 ProcessorBox::get_selected_processors (ProcSelection& processors) const
2001 {
2002         const list<ProcessorEntry*> selection = processor_display.selection ();
2003         for (list<ProcessorEntry*>::const_iterator i = selection.begin(); i != selection.end(); ++i) {
2004                 processors.push_back ((*i)->processor ());
2005         }
2006 }
2007
2008 void
2009 ProcessorBox::for_selected_processors (void (ProcessorBox::*method)(boost::shared_ptr<Processor>))
2010 {
2011         list<ProcessorEntry*> selection = processor_display.selection ();
2012         for (list<ProcessorEntry*>::iterator i = selection.begin(); i != selection.end(); ++i) {
2013                 (this->*method) ((*i)->processor ());
2014         }
2015 }
2016
2017 void
2018 ProcessorBox::all_visible_processors_active (bool state)
2019 {
2020         _route->all_visible_processors_active (state);
2021 }
2022
2023 void
2024 ProcessorBox::ab_plugins ()
2025 {
2026         _route->ab_plugins (ab_direction);
2027         ab_direction = !ab_direction;
2028 }
2029
2030
2031 void
2032 ProcessorBox::clear_processors ()
2033 {
2034         string prompt;
2035         vector<string> choices;
2036
2037         prompt = string_compose (_("Do you really want to remove all processors from %1?\n"
2038                                    "(this cannot be undone)"), _route->name());
2039
2040         choices.push_back (_("Cancel"));
2041         choices.push_back (_("Yes, remove them all"));
2042
2043         Gtkmm2ext::Choice prompter (_("Remove processors"), prompt, choices);
2044
2045         if (prompter.run () == 1) {
2046                 _route->clear_processors (PreFader);
2047                 _route->clear_processors (PostFader);
2048         }
2049 }
2050
2051 void
2052 ProcessorBox::clear_processors (Placement p)
2053 {
2054         string prompt;
2055         vector<string> choices;
2056
2057         if (p == PreFader) {
2058                 prompt = string_compose (_("Do you really want to remove all pre-fader processors from %1?\n"
2059                                            "(this cannot be undone)"), _route->name());
2060         } else {
2061                 prompt = string_compose (_("Do you really want to remove all post-fader processors from %1?\n"
2062                                            "(this cannot be undone)"), _route->name());
2063         }
2064
2065         choices.push_back (_("Cancel"));
2066         choices.push_back (_("Yes, remove them all"));
2067
2068         Gtkmm2ext::Choice prompter (_("Remove processors"), prompt, choices);
2069
2070         if (prompter.run () == 1) {
2071                 _route->clear_processors (p);
2072         }
2073 }
2074
2075 bool
2076 ProcessorBox::processor_can_be_edited (boost::shared_ptr<Processor> processor)
2077 {
2078         boost::shared_ptr<AudioTrack> at = boost::dynamic_pointer_cast<AudioTrack> (_route);
2079         if (at && at->freeze_state() == AudioTrack::Frozen) {
2080                 return false;
2081         }
2082
2083         if (
2084                 boost::dynamic_pointer_cast<Send> (processor) ||
2085                 boost::dynamic_pointer_cast<Return> (processor) ||
2086                 boost::dynamic_pointer_cast<PluginInsert> (processor) ||
2087                 boost::dynamic_pointer_cast<PortInsert> (processor)
2088                 ) {
2089                 return true;
2090         }
2091
2092         return false;
2093 }
2094
2095 bool
2096 ProcessorBox::one_processor_can_be_edited ()
2097 {
2098         list<ProcessorEntry*> selection = processor_display.selection ();
2099         list<ProcessorEntry*>::iterator i = selection.begin();
2100         while (i != selection.end() && processor_can_be_edited ((*i)->processor()) == false) {
2101                 ++i;
2102         }
2103
2104         return (i != selection.end());
2105 }
2106
2107 Gtk::Window*
2108 ProcessorBox::get_editor_window (boost::shared_ptr<Processor> processor, bool use_custom)
2109 {
2110         boost::shared_ptr<Send> send;
2111         boost::shared_ptr<InternalSend> internal_send;
2112         boost::shared_ptr<Return> retrn;
2113         boost::shared_ptr<PluginInsert> plugin_insert;
2114         boost::shared_ptr<PortInsert> port_insert;
2115         Window* gidget = 0;
2116
2117         /* This method may or may not return a Window, but if it does not it
2118          * will modify the parent mixer strip appearance layout to allow
2119          * "editing" the @param processor that was passed in.
2120          *
2121          * So for example, if the processor is an Amp (gain), the parent strip
2122          * will be forced back into a model where the fader controls the main gain.
2123          * If the processor is a send, then we map the send controls onto the
2124          * strip.
2125          * 
2126          * Plugins and others will return a window for control.
2127          */
2128
2129         if (boost::dynamic_pointer_cast<AudioTrack>(_route) != 0) {
2130
2131                 if (boost::dynamic_pointer_cast<AudioTrack> (_route)->freeze_state() == AudioTrack::Frozen) {
2132                         return 0;
2133                 }
2134         }
2135
2136         if (boost::dynamic_pointer_cast<Amp> (processor)) {
2137
2138                 if (_parent_strip) {
2139                         _parent_strip->revert_to_default_display ();
2140                 }
2141
2142         } else if ((send = boost::dynamic_pointer_cast<Send> (processor)) != 0) {
2143
2144                 if (!_session->engine().connected()) {
2145                         return 0;
2146                 }
2147
2148                 if (boost::dynamic_pointer_cast<InternalSend> (processor) == 0) {
2149
2150                         gidget = new SendUIWindow (send, _session);
2151                 }
2152
2153         } else if ((retrn = boost::dynamic_pointer_cast<Return> (processor)) != 0) {
2154
2155                 if (boost::dynamic_pointer_cast<InternalReturn> (retrn)) {
2156                         /* no GUI for these */
2157                         return 0;
2158                 }
2159
2160                 if (!_session->engine().connected()) {
2161                         return 0;
2162                 }
2163
2164                 boost::shared_ptr<Return> retrn = boost::dynamic_pointer_cast<Return> (processor);
2165
2166                 ReturnUIWindow *return_ui;
2167                 Window* w = get_processor_ui (retrn);
2168
2169                 if (w == 0) {
2170
2171                         return_ui = new ReturnUIWindow (retrn, _session);
2172                         return_ui->set_title (retrn->name ());
2173                         set_processor_ui (send, return_ui);
2174
2175                 } else {
2176                         return_ui = dynamic_cast<ReturnUIWindow *> (w);
2177                 }
2178
2179                 gidget = return_ui;
2180
2181         } else if ((plugin_insert = boost::dynamic_pointer_cast<PluginInsert> (processor)) != 0) {
2182
2183                 PluginUIWindow *plugin_ui;
2184
2185                 /* these are both allowed to be null */
2186
2187                 Window* w = get_processor_ui (plugin_insert);
2188
2189                 if (w == 0) {
2190                         plugin_ui = new PluginUIWindow (plugin_insert, false, use_custom);
2191                         plugin_ui->set_title (generate_processor_title (plugin_insert));
2192                         set_processor_ui (plugin_insert, plugin_ui);
2193
2194                 } else {
2195                         plugin_ui = dynamic_cast<PluginUIWindow *> (w);
2196                 }
2197
2198                 gidget = plugin_ui;
2199
2200         } else if ((port_insert = boost::dynamic_pointer_cast<PortInsert> (processor)) != 0) {
2201
2202                 if (!_session->engine().connected()) {
2203                         MessageDialog msg ( _("Not connected to audio engine - no I/O changes are possible"));
2204                         msg.run ();
2205                         return 0;
2206                 }
2207
2208                 PortInsertWindow *io_selector;
2209
2210                 Window* w = get_processor_ui (port_insert);
2211
2212                 if (w == 0) {
2213                         io_selector = new PortInsertWindow (_session, port_insert);
2214                         set_processor_ui (port_insert, io_selector);
2215
2216                 } else {
2217                         io_selector = dynamic_cast<PortInsertWindow *> (w);
2218                 }
2219
2220                 gidget = io_selector;
2221         }
2222
2223         return gidget;
2224 }
2225
2226 Gtk::Window*
2227 ProcessorBox::get_generic_editor_window (boost::shared_ptr<Processor> processor)
2228 {
2229         boost::shared_ptr<PluginInsert> plugin_insert
2230                 = boost::dynamic_pointer_cast<PluginInsert>(processor);
2231
2232         if (!plugin_insert) {
2233                 return 0;
2234         }
2235
2236         PluginUIWindow* win = new PluginUIWindow (plugin_insert, true, false);
2237         win->set_title (generate_processor_title (plugin_insert));
2238
2239         return win;
2240 }
2241
2242 void
2243 ProcessorBox::register_actions ()
2244 {
2245         Glib::RefPtr<Gtk::ActionGroup> popup_act_grp = Gtk::ActionGroup::create(X_("ProcessorMenu"));
2246         Glib::RefPtr<Action> act;
2247
2248         /* new stuff */
2249         ActionManager::register_action (popup_act_grp, X_("newplugin"), _("New Plugin"),
2250                         sigc::ptr_fun (ProcessorBox::rb_choose_plugin));
2251
2252         act = ActionManager::register_action (popup_act_grp, X_("newinsert"), _("New Insert"),
2253                         sigc::ptr_fun (ProcessorBox::rb_choose_insert));
2254         ActionManager::engine_sensitive_actions.push_back (act);
2255         act = ActionManager::register_action (popup_act_grp, X_("newsend"), _("New External Send ..."),
2256                         sigc::ptr_fun (ProcessorBox::rb_choose_send));
2257         ActionManager::engine_sensitive_actions.push_back (act);
2258
2259         ActionManager::register_action (popup_act_grp, X_("newaux"), _("New Aux Send ..."));
2260
2261         ActionManager::register_action (popup_act_grp, X_("controls"), _("Controls"));
2262
2263         ActionManager::register_action (popup_act_grp, X_("clear"), _("Clear (all)"),
2264                         sigc::ptr_fun (ProcessorBox::rb_clear));
2265         ActionManager::register_action (popup_act_grp, X_("clear_pre"), _("Clear (pre-fader)"),
2266                         sigc::ptr_fun (ProcessorBox::rb_clear_pre));
2267         ActionManager::register_action (popup_act_grp, X_("clear_post"), _("Clear (post-fader)"),
2268                         sigc::ptr_fun (ProcessorBox::rb_clear_post));
2269
2270         /* standard editing stuff */
2271         cut_action = ActionManager::register_action (popup_act_grp, X_("cut"), _("Cut"),
2272                                                      sigc::ptr_fun (ProcessorBox::rb_cut));
2273         ActionManager::plugin_selection_sensitive_actions.push_back(cut_action);
2274         act = ActionManager::register_action (popup_act_grp, X_("copy"), _("Copy"),
2275                         sigc::ptr_fun (ProcessorBox::rb_copy));
2276         ActionManager::plugin_selection_sensitive_actions.push_back(act);
2277
2278         act = ActionManager::register_action (popup_act_grp, X_("delete"), _("Delete"),
2279                         sigc::ptr_fun (ProcessorBox::rb_delete));
2280         ActionManager::plugin_selection_sensitive_actions.push_back(act); // ??
2281
2282         paste_action = ActionManager::register_action (popup_act_grp, X_("paste"), _("Paste"),
2283                         sigc::ptr_fun (ProcessorBox::rb_paste));
2284         rename_action = ActionManager::register_action (popup_act_grp, X_("rename"), _("Rename"),
2285                         sigc::ptr_fun (ProcessorBox::rb_rename));
2286         ActionManager::register_action (popup_act_grp, X_("selectall"), _("Select All"),
2287                         sigc::ptr_fun (ProcessorBox::rb_select_all));
2288         ActionManager::register_action (popup_act_grp, X_("deselectall"), _("Deselect All"),
2289                         sigc::ptr_fun (ProcessorBox::rb_deselect_all));
2290
2291         /* activation etc. */
2292
2293         ActionManager::register_action (popup_act_grp, X_("activate_all"), _("Activate All"),
2294                         sigc::ptr_fun (ProcessorBox::rb_activate_all));
2295         ActionManager::register_action (popup_act_grp, X_("deactivate_all"), _("Deactivate All"),
2296                         sigc::ptr_fun (ProcessorBox::rb_deactivate_all));
2297         ActionManager::register_action (popup_act_grp, X_("ab_plugins"), _("A/B Plugins"),
2298                         sigc::ptr_fun (ProcessorBox::rb_ab_plugins));
2299
2300         /* show editors */
2301         edit_action = ActionManager::register_action (
2302                 popup_act_grp, X_("edit"), _("Edit..."),
2303                 sigc::ptr_fun (ProcessorBox::rb_edit));
2304
2305         edit_generic_action = ActionManager::register_action (
2306                 popup_act_grp, X_("edit-generic"), _("Edit with generic controls..."),
2307                 sigc::ptr_fun (ProcessorBox::rb_edit_generic));
2308
2309         ActionManager::add_action_group (popup_act_grp);
2310 }
2311
2312 void
2313 ProcessorBox::rb_edit_generic ()
2314 {
2315         if (_current_processor_box == 0) {
2316                 return;
2317         }
2318
2319         _current_processor_box->for_selected_processors (&ProcessorBox::generic_edit_processor);
2320 }
2321
2322 void
2323 ProcessorBox::rb_ab_plugins ()
2324 {
2325         if (_current_processor_box == 0) {
2326                 return;
2327         }
2328
2329         _current_processor_box->ab_plugins ();
2330 }
2331
2332 void
2333 ProcessorBox::rb_choose_plugin ()
2334 {
2335         if (_current_processor_box == 0) {
2336                 return;
2337         }
2338         _current_processor_box->choose_plugin ();
2339 }
2340
2341 void
2342 ProcessorBox::rb_choose_insert ()
2343 {
2344         if (_current_processor_box == 0) {
2345                 return;
2346         }
2347         _current_processor_box->choose_insert ();
2348 }
2349
2350 void
2351 ProcessorBox::rb_choose_send ()
2352 {
2353         if (_current_processor_box == 0) {
2354                 return;
2355         }
2356         _current_processor_box->choose_send ();
2357 }
2358
2359 void
2360 ProcessorBox::rb_choose_aux (boost::weak_ptr<Route> wr)
2361 {
2362         if (_current_processor_box == 0) {
2363                 return;
2364         }
2365
2366         _current_processor_box->choose_aux (wr);
2367 }
2368
2369 void
2370 ProcessorBox::rb_clear ()
2371 {
2372         if (_current_processor_box == 0) {
2373                 return;
2374         }
2375
2376         _current_processor_box->clear_processors ();
2377 }
2378
2379
2380 void
2381 ProcessorBox::rb_clear_pre ()
2382 {
2383         if (_current_processor_box == 0) {
2384                 return;
2385         }
2386
2387         _current_processor_box->clear_processors (PreFader);
2388 }
2389
2390
2391 void
2392 ProcessorBox::rb_clear_post ()
2393 {
2394         if (_current_processor_box == 0) {
2395                 return;
2396         }
2397
2398         _current_processor_box->clear_processors (PostFader);
2399 }
2400
2401 void
2402 ProcessorBox::rb_cut ()
2403 {
2404         if (_current_processor_box == 0) {
2405                 return;
2406         }
2407
2408         _current_processor_box->processor_operation (ProcessorsCut);
2409 }
2410
2411 void
2412 ProcessorBox::rb_delete ()
2413 {
2414         if (_current_processor_box == 0) {
2415                 return;
2416         }
2417
2418         _current_processor_box->processor_operation (ProcessorsDelete);
2419 }
2420
2421 void
2422 ProcessorBox::rb_copy ()
2423 {
2424         if (_current_processor_box == 0) {
2425                 return;
2426         }
2427         _current_processor_box->processor_operation (ProcessorsCopy);
2428 }
2429
2430 void
2431 ProcessorBox::rb_paste ()
2432 {
2433         if (_current_processor_box == 0) {
2434                 return;
2435         }
2436
2437         _current_processor_box->processor_operation (ProcessorsPaste);
2438 }
2439
2440 void
2441 ProcessorBox::rb_rename ()
2442 {
2443         if (_current_processor_box == 0) {
2444                 return;
2445         }
2446         _current_processor_box->rename_processors ();
2447 }
2448
2449 void
2450 ProcessorBox::rb_select_all ()
2451 {
2452         if (_current_processor_box == 0) {
2453                 return;
2454         }
2455
2456         _current_processor_box->processor_operation (ProcessorsSelectAll);
2457 }
2458
2459 void
2460 ProcessorBox::rb_deselect_all ()
2461 {
2462         if (_current_processor_box == 0) {
2463                 return;
2464         }
2465
2466         _current_processor_box->deselect_all_processors ();
2467 }
2468
2469 void
2470 ProcessorBox::rb_activate_all ()
2471 {
2472         if (_current_processor_box == 0) {
2473                 return;
2474         }
2475
2476         _current_processor_box->all_visible_processors_active (true);
2477 }
2478
2479 void
2480 ProcessorBox::rb_deactivate_all ()
2481 {
2482         if (_current_processor_box == 0) {
2483                 return;
2484         }
2485         _current_processor_box->all_visible_processors_active (false);
2486 }
2487
2488 void
2489 ProcessorBox::rb_edit ()
2490 {
2491         if (_current_processor_box == 0) {
2492                 return;
2493         }
2494
2495         _current_processor_box->for_selected_processors (&ProcessorBox::edit_processor);
2496 }
2497
2498 bool
2499 ProcessorBox::edit_aux_send (boost::shared_ptr<Processor> processor)
2500 {
2501         if (boost::dynamic_pointer_cast<InternalSend> (processor) == 0) {
2502                 return false;
2503         }
2504
2505         if (_parent_strip) {
2506                 boost::shared_ptr<Send> send = boost::dynamic_pointer_cast<Send> (processor);
2507                 if (_parent_strip->current_delivery() == send) {
2508                         _parent_strip->revert_to_default_display ();
2509                 } else {
2510                         _parent_strip->show_send(send);
2511                 }
2512         }
2513         return true;
2514 }
2515
2516 void
2517 ProcessorBox::edit_processor (boost::shared_ptr<Processor> processor)
2518 {
2519         if (!processor) {
2520                 return;
2521         }
2522         if (edit_aux_send (processor)) {
2523                 return;
2524         }
2525
2526         ProcessorWindowProxy* proxy = find_window_proxy (processor);
2527
2528         if (proxy) {
2529                 proxy->set_custom_ui_mode (true);
2530                 proxy->toggle ();
2531         }
2532 }
2533
2534 void
2535 ProcessorBox::generic_edit_processor (boost::shared_ptr<Processor> processor)
2536 {
2537         if (!processor) {
2538                 return;
2539         }
2540         if (edit_aux_send (processor)) {
2541                 return;
2542         }
2543
2544         ProcessorWindowProxy* proxy = find_window_proxy (processor);
2545
2546         if (proxy) {
2547                 proxy->set_custom_ui_mode (false);
2548                 proxy->toggle ();
2549         }
2550 }
2551
2552 void
2553 ProcessorBox::route_property_changed (const PropertyChange& what_changed)
2554 {
2555         if (!what_changed.contains (ARDOUR::Properties::name)) {
2556                 return;
2557         }
2558
2559         ENSURE_GUI_THREAD (*this, &ProcessorBox::route_property_changed, what_changed);
2560
2561         boost::shared_ptr<Processor> processor;
2562         boost::shared_ptr<PluginInsert> plugin_insert;
2563         boost::shared_ptr<Send> send;
2564
2565         list<ProcessorEntry*> children = processor_display.children();
2566
2567         for (list<ProcessorEntry*>::iterator iter = children.begin(); iter != children.end(); ++iter) {
2568
2569                 processor = (*iter)->processor ();
2570
2571                 if (!processor) {
2572                         continue;
2573                 }
2574
2575                 Window* w = get_processor_ui (processor);
2576
2577                 if (!w) {
2578                         continue;
2579                 }
2580
2581                 /* rename editor windows for sends and plugins */
2582
2583                 if ((send = boost::dynamic_pointer_cast<Send> (processor)) != 0) {
2584                         w->set_title (send->name ());
2585                 } else if ((plugin_insert = boost::dynamic_pointer_cast<PluginInsert> (processor)) != 0) {
2586                         w->set_title (generate_processor_title (plugin_insert));
2587                 }
2588         }
2589 }
2590
2591 string
2592 ProcessorBox::generate_processor_title (boost::shared_ptr<PluginInsert> pi)
2593 {
2594         string maker = pi->plugin()->maker() ? pi->plugin()->maker() : "";
2595         string::size_type email_pos;
2596
2597         if ((email_pos = maker.find_first_of ('<')) != string::npos) {
2598                 maker = maker.substr (0, email_pos - 1);
2599         }
2600
2601         if (maker.length() > 32) {
2602                 maker = maker.substr (0, 32);
2603                 maker += " ...";
2604         }
2605
2606         SessionObject* owner = pi->owner();
2607
2608         if (owner) {
2609                 return string_compose(_("%1: %2 (by %3)"), owner->name(), pi->name(), maker);
2610         } else {
2611                 return string_compose(_("%1 (by %2)"), pi->name(), maker);
2612         }
2613 }
2614
2615 /** @param p Processor.
2616  *  @return the UI window for \a p.
2617  */
2618 Window *
2619 ProcessorBox::get_processor_ui (boost::shared_ptr<Processor> p) const
2620 {
2621         list<ProcessorWindowProxy*>::const_iterator i = _processor_window_info.begin ();
2622         while (i != _processor_window_info.end()) {
2623                 boost::shared_ptr<Processor> t = (*i)->processor().lock ();
2624                 if (t && t == p) {
2625                         return (*i)->get ();
2626                 }
2627
2628                 ++i;
2629         }
2630
2631         return 0;
2632 }
2633
2634 /** Make a note of the UI window that a processor is using.
2635  *  @param p Processor.
2636  *  @param w UI window.
2637  */
2638 void
2639 ProcessorBox::set_processor_ui (boost::shared_ptr<Processor> p, Gtk::Window* w)
2640 {
2641         list<ProcessorWindowProxy*>::iterator i = _processor_window_info.begin ();
2642
2643         p->set_ui (w);
2644
2645         while (i != _processor_window_info.end()) {
2646                 boost::shared_ptr<Processor> t = (*i)->processor().lock ();
2647                 if (t && t == p) {
2648                         (*i)->use_window (*w);
2649                         return;
2650                 }
2651
2652                 ++i;
2653         }
2654
2655         /* we shouldn't get here, because the ProcessorUIList should always contain
2656            an entry for each processor.
2657         */
2658         assert (false);
2659 }
2660
2661 void
2662 ProcessorBox::mixer_strip_delivery_changed (boost::weak_ptr<Delivery> w)
2663 {
2664         boost::shared_ptr<Delivery> d = w.lock ();
2665         if (!d) {
2666                 return;
2667         }
2668
2669         list<ProcessorEntry*> children = processor_display.children ();
2670         list<ProcessorEntry*>::const_iterator i = children.begin();
2671         while (i != children.end() && (*i)->processor() != d) {
2672                 ++i;
2673         }
2674
2675         if (i == children.end()) {
2676                 processor_display.set_active (0);
2677         } else {
2678                 processor_display.set_active (*i);
2679         }
2680 }
2681
2682 /** Called to repair the damage of Editor::show_window doing a show_all() */
2683 void
2684 ProcessorBox::hide_things ()
2685 {
2686         list<ProcessorEntry*> c = processor_display.children ();
2687         for (list<ProcessorEntry*>::iterator i = c.begin(); i != c.end(); ++i) {
2688                 (*i)->hide_things ();
2689         }
2690 }
2691
2692 void
2693 ProcessorBox::processor_menu_unmapped ()
2694 {
2695         processor_display.remove_placeholder ();
2696 }
2697
2698 XMLNode *
2699 ProcessorBox::entry_gui_object_state (ProcessorEntry* entry)
2700 {
2701         if (!_parent_strip) {
2702                 return 0;
2703         }
2704
2705         GUIObjectState& st = _parent_strip->gui_object_state ();
2706         
2707         XMLNode* strip = st.get_or_add_node (_parent_strip->state_id ());
2708         assert (strip);
2709         return st.get_or_add_node (strip, entry->state_id());
2710 }
2711
2712 void
2713 ProcessorBox::update_gui_object_state (ProcessorEntry* entry)
2714 {
2715         XMLNode* proc = entry_gui_object_state (entry);
2716         if (!proc) {
2717                 return;
2718         }
2719
2720         /* XXX: this is a bit inefficient; we just remove all child nodes and re-add them */
2721         proc->remove_nodes_and_delete (X_("Object"));
2722         entry->add_control_state (proc);
2723 }
2724
2725 bool
2726 ProcessorBox::is_editor_mixer_strip() const
2727 {
2728         return _parent_strip && !_parent_strip->mixer_owned();
2729 }
2730
2731 ProcessorWindowProxy::ProcessorWindowProxy (string const & name, ProcessorBox* box, boost::weak_ptr<Processor> processor)
2732         : WM::ProxyBase (name, string())
2733         , marked (false)
2734         , _processor_box (box)
2735         , _processor (processor)
2736         , is_custom (false)
2737         , want_custom (false)
2738         , _valid (true)
2739 {
2740         boost::shared_ptr<Processor> p = _processor.lock ();
2741         if (!p) {
2742                 return;
2743         }
2744         p->DropReferences.connect (going_away_connection, MISSING_INVALIDATOR, boost::bind (&ProcessorWindowProxy::processor_going_away, this), gui_context());
2745 }
2746
2747 ProcessorWindowProxy::~ProcessorWindowProxy()
2748 {
2749         /* processor window proxies do not own the windows they create with
2750          * ::get(), so set _window to null before the normal WindowProxy method
2751          * deletes it.
2752          */
2753         _window = 0;
2754 }
2755
2756 void
2757 ProcessorWindowProxy::processor_going_away ()
2758 {
2759         delete _window;
2760         _window = 0;
2761         _valid = false;
2762         /* should be no real reason to do this, since the object that would
2763            send DropReferences is about to be deleted, but lets do it anyway.
2764         */
2765         going_away_connection.disconnect();
2766 }
2767
2768 ARDOUR::SessionHandlePtr*
2769 ProcessorWindowProxy::session_handle() 
2770 {
2771         /* we don't care */
2772         return 0;
2773 }
2774
2775 bool
2776 ProcessorWindowProxy::valid() const
2777 {
2778         return _valid;
2779 }
2780
2781 XMLNode&
2782 ProcessorWindowProxy::get_state () const
2783 {
2784         XMLNode *node;
2785         node = &ProxyBase::get_state();
2786         node->add_property (X_("custom-ui"), is_custom? X_("yes") : X_("no"));
2787         return *node;
2788 }
2789
2790 void
2791 ProcessorWindowProxy::set_state (const XMLNode& node)
2792 {
2793         XMLNodeList children = node.children ();
2794         XMLNodeList::const_iterator i = children.begin ();
2795         while (i != children.end()) {
2796                 XMLProperty* prop = (*i)->property (X_("name"));
2797                 if ((*i)->name() == X_("Window") && prop && prop->value() == _name) {
2798                         break;
2799                 }
2800                 ++i;
2801         }
2802
2803         if (i != children.end()) {
2804                 XMLProperty* prop;
2805                 if ((prop = (*i)->property (X_("custom-ui"))) != 0) {
2806                         want_custom = PBD::string_is_affirmative (prop->value ());
2807                 }
2808         }
2809
2810         ProxyBase::set_state(node);
2811 }
2812
2813 Gtk::Window*
2814 ProcessorWindowProxy::get (bool create)
2815 {
2816         boost::shared_ptr<Processor> p = _processor.lock ();
2817
2818         if (!p) {
2819                 return 0;
2820         }
2821         if (_window && (is_custom != want_custom)) {
2822                 /* drop existing window - wrong type */
2823                 drop_window ();
2824         }
2825
2826         if (!_window) {
2827                 if (!create) {
2828                         return 0;
2829                 }
2830                 
2831                 is_custom = want_custom;
2832                 _window = _processor_box->get_editor_window (p, is_custom);
2833
2834                 if (_window) {
2835                         setup ();
2836                 }
2837         }
2838
2839         return _window;
2840 }
2841
2842 void
2843 ProcessorWindowProxy::toggle ()
2844 {
2845         if (_window && (is_custom != want_custom)) {
2846                 /* drop existing window - wrong type */
2847                 drop_window ();
2848         }
2849         is_custom = want_custom;
2850
2851         WM::ProxyBase::toggle ();
2852 }