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 #ifdef COMPILER_MSVC
  25 #define rintf(x) round((x) + 0.5)
  26 #endif
  27
  28 #include <cmath>
  29 #include <iostream>
  30 #include <set>
  31
  32 #include <sigc++/bind.h>
  33
  34 #include "pbd/convert.h"
  35
  36 #include <glibmm/miscutils.h>
  37
  38 #include <gtkmm/messagedialog.h>
  39
  40 #include <gtkmm2ext/gtk_ui.h>
  41 #include <gtkmm2ext/utils.h>
  42 #include <gtkmm2ext/choice.h>
  43 #include <gtkmm2ext/utils.h>
  44 #include <gtkmm2ext/doi.h>
  45 #include <gtkmm2ext/rgb_macros.h>
  46
  47 #include "ardour/amp.h"
  48 #include "ardour/audio_track.h"
  49 #include "ardour/audioengine.h"
  50 #include "ardour/internal_return.h"
  51 #include "ardour/internal_send.h"
  52 #include "ardour/panner_shell.h"
  53 #include "ardour/plugin_insert.h"
  54 #include "ardour/pannable.h"
  55 #include "ardour/port_insert.h"
  56 #include "ardour/profile.h"
  57 #include "ardour/return.h"
  58 #include "ardour/route.h"
  59 #include "ardour/send.h"
  60 #include "ardour/session.h"
  61 #include "ardour/types.h"
  62
  63 #include "actions.h"
  64 #include "ardour_dialog.h"
  65 #include "ardour_ui.h"
  66 #include "gui_thread.h"
  67 #include "io_selector.h"
  68 #include "keyboard.h"
  69 #include "mixer_ui.h"
  70 #include "mixer_strip.h"
  71 #include "plugin_selector.h"
  72 #include "plugin_ui.h"
  73 #include "port_insert_ui.h"
  74 #include "processor_box.h"
  75 #include "public_editor.h"
  76 #include "return_ui.h"
  77 #include "route_processor_selection.h"
  78 #include "send_ui.h"
  79 #include "timers.h"
  80
  81 #include "i18n.h"
  82
  83 #ifdef AUDIOUNIT_SUPPORT
  84 class AUPluginUI;
  85 #endif
  86
  87 using namespace std;
  88 using namespace ARDOUR;
  89 using namespace PBD;
  90 using namespace Gtk;
  91 using namespace Glib;
  92 using namespace Gtkmm2ext;
  93
  94 ProcessorBox* ProcessorBox::_current_processor_box = 0;
  95 RefPtr<Action> ProcessorBox::paste_action;
  96 RefPtr<Action> ProcessorBox::cut_action;
  97 RefPtr<Action> ProcessorBox::rename_action;
  98 RefPtr<Action> ProcessorBox::edit_action;
  99 RefPtr<Action> ProcessorBox::edit_generic_action;
 100
 101 static const uint32_t audio_port_color = 0x4A8A0EFF; // Green
 102 static const uint32_t midi_port_color = 0x960909FF; //Red
 103
 104 ProcessorEntry::ProcessorEntry (ProcessorBox* parent, boost::shared_ptr<Processor> p, Width w)
 105         : _button (ArdourButton::led_default_elements)
 106         , _position (PreFader)
 107         , _position_num(0)
 108         , _selectable(true)
 109         , _parent (parent)
 110         , _processor (p)
 111         , _width (w)
 112         , _input_icon(true)
 113         , _output_icon(false)
 114 {
 115         _vbox.show ();
 116
 117         _button.set_distinct_led_click (true);
 118         _button.set_fallthrough_to_parent(true);
 119         _button.set_led_left (true);
 120         _button.signal_led_clicked.connect (sigc::mem_fun (*this, &ProcessorEntry::led_clicked));
 121         _button.set_text (name (_width));
 122
 123         if (_processor) {
 124
 125                 _vbox.pack_start (_routing_icon);
 126                 _vbox.pack_start (_input_icon);
 127                 _vbox.pack_start (_button, true, true);
 128                 _vbox.pack_end (_output_icon);
 129
 130                 _button.set_active (_processor->active());
 131
 132                 _routing_icon.set_no_show_all(true);
 133                 _input_icon.set_no_show_all(true);
 134
 135                 _button.show ();
 136                 _routing_icon.set_visible(false);
 137                 _input_icon.hide();
 138                 _output_icon.show();
 139
 140                 _processor->ActiveChanged.connect (active_connection, invalidator (*this), boost::bind (&ProcessorEntry::processor_active_changed, this), gui_context());
 141                 _processor->PropertyChanged.connect (name_connection, invalidator (*this), boost::bind (&ProcessorEntry::processor_property_changed, this, _1), gui_context());
 142                 _processor->ConfigurationChanged.connect (config_connection, invalidator (*this), boost::bind (&ProcessorEntry::processor_configuration_changed, this, _1, _2), gui_context());
 143
 144                 set<Evoral::Parameter> p = _processor->what_can_be_automated ();
 145                 for (set<Evoral::Parameter>::iterator i = p.begin(); i != p.end(); ++i) {
 146
 147                         std::string label = _processor->describe_parameter (*i);
 148
 149                         if (boost::dynamic_pointer_cast<Send> (_processor)) {
 150                                 label = _("Send");
 151                         } else if (boost::dynamic_pointer_cast<Return> (_processor)) {
 152                                 label = _("Return");
 153                         }
 154
 155                         Control* c = new Control (_processor->automation_control (*i), label);
 156
 157                         _controls.push_back (c);
 158
 159                         if (boost::dynamic_pointer_cast<Amp> (_processor) == 0) {
 160                                 /* Add non-Amp controls to the processor box */
 161                                 _vbox.pack_start (c->box);
 162                         }
 163                 }
 164
 165                 _input_icon.set_ports(_processor->input_streams());
 166                 _output_icon.set_ports(_processor->output_streams());
 167
 168                 _routing_icon.set_sources(_processor->input_streams());
 169                 _routing_icon.set_sinks(_processor->output_streams());
 170
 171                 setup_tooltip ();
 172                 setup_visuals ();
 173         } else {
 174                 _vbox.set_size_request (-1, _button.size_request().height);
 175         }
 176 }
 177
 178 ProcessorEntry::~ProcessorEntry ()
 179 {
 180         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
 181                 delete *i;
 182         }
 183 }
 184
 185 EventBox&
 186 ProcessorEntry::action_widget ()
 187 {
 188         return _button;
 189 }
 190
 191 Gtk::Widget&
 192 ProcessorEntry::widget ()
 193 {
 194         return _vbox;
 195 }
 196
 197 string
 198 ProcessorEntry::drag_text () const
 199 {
 200         return name (Wide);
 201 }
 202
 203 void
 204 ProcessorEntry::set_position (Position p, uint32_t num)
 205 {
 206         _position = p;
 207         _position_num = num;
 208
 209         if (_position_num == 0 || _routing_icon.get_visible()) {
 210                 _input_icon.show();
 211         } else {
 212                 _input_icon.hide();
 213         }
 214
 215         setup_visuals ();
 216 }
 217
 218 void
 219 ProcessorEntry::set_visual_state (Gtkmm2ext::VisualState s, bool yn)
 220 {
 221         if (yn) {
 222                 _button.set_visual_state (Gtkmm2ext::VisualState (_button.visual_state() | s));
 223         } else {
 224                 _button.set_visual_state (Gtkmm2ext::VisualState (_button.visual_state() & ~s));
 225         }
 226 }
 227
 228 void
 229 ProcessorEntry::setup_visuals ()
 230 {
 231         switch (_position) {
 232         case PreFader:
 233                 _button.set_name ("processor prefader");
 234                 break;
 235
 236         case Fader:
 237                 _button.set_name ("processor fader");
 238                 break;
 239
 240         case PostFader:
 241                 _button.set_name ("processor postfader");
 242                 break;
 243         }
 244 }
 245
 246
 247 boost::shared_ptr<Processor>
 248 ProcessorEntry::processor () const
 249 {
 250         return _processor;
 251 }
 252
 253 void
 254 ProcessorEntry::set_enum_width (Width w)
 255 {
 256         _width = w;
 257         _button.set_text (name (_width));
 258 }
 259
 260 void
 261 ProcessorEntry::led_clicked()
 262 {
 263         if (_processor) {
 264                 if (_button.get_active ()) {
 265                         _processor->deactivate ();
 266                 } else {
 267                         _processor->activate ();
 268                 }
 269         }
 270 }
 271
 272 void
 273 ProcessorEntry::processor_active_changed ()
 274 {
 275         if (_processor) {
 276                 _button.set_active (_processor->active());
 277         }
 278 }
 279
 280 void
 281 ProcessorEntry::processor_property_changed (const PropertyChange& what_changed)
 282 {
 283         if (what_changed.contains (ARDOUR::Properties::name)) {
 284                 _button.set_text (name (_width));
 285                 setup_tooltip ();
 286         }
 287 }
 288
 289 void
 290 ProcessorEntry::processor_configuration_changed (const ChanCount in, const ChanCount out)
 291 {
 292         _input_icon.set_ports(in);
 293         _output_icon.set_ports(out);
 294         _routing_icon.set_sources(in);
 295         _routing_icon.set_sinks(out);
 296         _input_icon.queue_draw();
 297         _output_icon.queue_draw();
 298         _routing_icon.queue_draw();
 299 }
 300
 301 void
 302 ProcessorEntry::setup_tooltip ()
 303 {
 304         if (_processor) {
 305                 boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (_processor);
 306                 if (pi) {
 307                         std::string postfix = "";
 308                         uint32_t replicated;
 309                         if ((replicated = pi->get_count()) > 1) {
 310                                 postfix = string_compose(_("\nThis mono plugin has been replicated %1 times."), replicated);
 311                         }
 312                         if (pi->plugin()->has_editor()) {
 313                                 ARDOUR_UI::instance()->set_tip (_button,
 314                                                 string_compose (_("<b>%1</b>\nDouble-click to show GUI.\nAlt+double-click to show generic GUI.%2"), name (Wide), postfix));
 315                         } else {
 316                                 ARDOUR_UI::instance()->set_tip (_button,
 317                                                 string_compose (_("<b>%1</b>\nDouble-click to show generic GUI.%2"), name (Wide), postfix));
 318                         }
 319                         return;
 320                 }
 321         }
 322         ARDOUR_UI::instance()->set_tip (_button, string_compose ("<b>%1</b>", name (Wide)));
 323 }
 324
 325 string
 326 ProcessorEntry::name (Width w) const
 327 {
 328         boost::shared_ptr<Send> send;
 329         string name_display;
 330
 331         if (!_processor) {
 332                 return string();
 333         }
 334
 335         if ((send = boost::dynamic_pointer_cast<Send> (_processor)) != 0 &&
 336             !boost::dynamic_pointer_cast<InternalSend>(_processor)) {
 337
 338                 name_display += '>';
 339
 340                 /* grab the send name out of its overall name */
 341
 342                 string::size_type lbracket, rbracket;
 343                 lbracket = send->name().find ('[');
 344                 rbracket = send->name().find (']');
 345
 346                 switch (w) {
 347                 case Wide:
 348                         name_display += send->name().substr (lbracket+1, lbracket-rbracket-1);
 349                         break;
 350                 case Narrow:
 351                         name_display += PBD::short_version (send->name().substr (lbracket+1, lbracket-rbracket-1), 4);
 352                         break;
 353                 }
 354
 355         } else {
 356                 boost::shared_ptr<ARDOUR::PluginInsert> pi;
 357                 uint32_t replicated;
 358                 if ((pi = boost::dynamic_pointer_cast<ARDOUR::PluginInsert> (_processor)) != 0
 359                                 && (replicated = pi->get_count()) > 1)
 360                 {
 361                         name_display += string_compose(_("(%1x1) "), replicated);
 362                 }
 363
 364                 switch (w) {
 365                 case Wide:
 366                         name_display += _processor->display_name();
 367                         break;
 368                 case Narrow:
 369                         name_display += PBD::short_version (_processor->display_name(), 5);
 370                         break;
 371                 }
 372
 373         }
 374
 375         return name_display;
 376 }
 377
 378 void
 379 ProcessorEntry::show_all_controls ()
 380 {
 381         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
 382                 (*i)->set_visible (true);
 383         }
 384
 385         _parent->update_gui_object_state (this);
 386 }
 387
 388 void
 389 ProcessorEntry::hide_all_controls ()
 390 {
 391         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
 392                 (*i)->set_visible (false);
 393         }
 394
 395         _parent->update_gui_object_state (this);
 396 }
 397
 398 void
 399 ProcessorEntry::add_control_state (XMLNode* node) const
 400 {
 401         for (list<Control*>::const_iterator i = _controls.begin(); i != _controls.end(); ++i) {
 402                 (*i)->add_state (node);
 403         }
 404 }
 405
 406 void
 407 ProcessorEntry::set_control_state (XMLNode const * node)
 408 {
 409         for (list<Control*>::const_iterator i = _controls.begin(); i != _controls.end(); ++i) {
 410                 (*i)->set_state (node);
 411         }
 412 }
 413
 414 string
 415 ProcessorEntry::state_id () const
 416 {
 417         return string_compose ("processor %1", _processor->id().to_s());
 418 }
 419
 420 void
 421 ProcessorEntry::hide_things ()
 422 {
 423         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
 424                 (*i)->hide_things ();
 425         }
 426 }
 427
 428
 429 Menu *
 430 ProcessorEntry::build_controls_menu ()
 431 {
 432         using namespace Menu_Helpers;
 433         Menu* menu = manage (new Menu);
 434         MenuList& items = menu->items ();
 435
 436         items.push_back (
 437                 MenuElem (_("Show All Controls"), sigc::mem_fun (*this, &ProcessorEntry::show_all_controls))
 438                 );
 439
 440         items.push_back (
 441                 MenuElem (_("Hide All Controls"), sigc::mem_fun (*this, &ProcessorEntry::hide_all_controls))
 442                 );
 443
 444         if (!_controls.empty ()) {
 445                 items.push_back (SeparatorElem ());
 446         }
 447
 448         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
 449                 items.push_back (CheckMenuElem ((*i)->name ()));
 450                 Gtk::CheckMenuItem* c = dynamic_cast<Gtk::CheckMenuItem*> (&items.back ());
 451                 c->set_active ((*i)->visible ());
 452                 c->signal_toggled().connect (sigc::bind (sigc::mem_fun (*this, &ProcessorEntry::toggle_control_visibility), *i));
 453         }
 454
 455         return menu;
 456 }
 457
 458 void
 459 ProcessorEntry::toggle_control_visibility (Control* c)
 460 {
 461         c->set_visible (!c->visible ());
 462         _parent->update_gui_object_state (this);
 463 }
 464
 465 Menu *
 466 ProcessorEntry::build_send_options_menu ()
 467 {
 468         using namespace Menu_Helpers;
 469         Menu* menu = manage (new Menu);
 470         MenuList& items = menu->items ();
 471
 472         boost::shared_ptr<Send> send = boost::dynamic_pointer_cast<Send> (_processor);
 473         if (send) {
 474
 475                 items.push_back (CheckMenuElem (_("Link panner controls")));
 476                 Gtk::CheckMenuItem* c = dynamic_cast<Gtk::CheckMenuItem*> (&items.back ());
 477                 c->set_active (send->panner_shell()->is_linked_to_route());
 478                 c->signal_toggled().connect (sigc::mem_fun (*this, &ProcessorEntry::toggle_panner_link));
 479
 480         }
 481         return menu;
 482 }
 483
 484 void
 485 ProcessorEntry::toggle_panner_link ()
 486 {
 487         boost::shared_ptr<Send> send = boost::dynamic_pointer_cast<Send> (_processor);
 488         if (send) {
 489                 send->panner_shell()->set_linked_to_route(!send->panner_shell()->is_linked_to_route());
 490         }
 491 }
 492
 493 ProcessorEntry::Control::Control (boost::shared_ptr<AutomationControl> c, string const & n)
 494         : _control (c)
 495         , _adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()), 0, 1, 0.01, 0.1)
 496         , _slider (&_adjustment, boost::shared_ptr<PBD::Controllable>(), 0, 13)
 497         , _slider_persistant_tooltip (&_slider)
 498         , _button (ArdourButton::led_default_elements)
 499         , _ignore_ui_adjustment (false)
 500         , _visible (false)
 501         , _name (n)
 502 {
 503         _slider.set_controllable (c);
 504         box.set_padding(0, 0, 4, 4);
 505
 506         if (c->toggled()) {
 507                 _button.set_text (_name);
 508                 _button.set_led_left (true);
 509                 _button.set_name ("processor control button");
 510                 box.add (_button);
 511                 _button.show ();
 512
 513                 _button.signal_clicked.connect (sigc::mem_fun (*this, &Control::button_clicked));
 514                 _button.signal_led_clicked.connect (sigc::mem_fun (*this, &Control::button_clicked));
 515                 c->Changed.connect (_connection, MISSING_INVALIDATOR, boost::bind (&Control::control_changed, this), gui_context ());
 516
 517         } else {
 518
 519                 _slider.set_name ("ProcessorControlSlider");
 520                 _slider.set_text (_name);
 521
 522                 box.add (_slider);
 523                 _slider.show ();
 524
 525                 const ARDOUR::ParameterDescriptor& desc = c->desc();
 526                 double const lo = c->internal_to_interface(desc.lower);
 527                 double const up = c->internal_to_interface(desc.upper);
 528                 double const normal = c->internal_to_interface(desc.normal);
 529                 double smallstep = desc.smallstep;
 530                 double largestep = desc.largestep;
 531
 532                 if (smallstep == 0.0) {
 533                         smallstep = up / 1000.;
 534                 } else {
 535                         smallstep = c->internal_to_interface(desc.lower + smallstep);
 536                 }
 537
 538                 if (largestep == 0.0) {
 539                         largestep = up / 40.;
 540                 } else {
 541                         largestep = c->internal_to_interface(desc.lower + largestep);
 542                 }
 543
 544                 _adjustment.set_lower (lo);
 545                 _adjustment.set_upper (up);
 546                 _adjustment.set_step_increment (smallstep);
 547                 _adjustment.set_page_increment (largestep);
 548                 _slider.set_default_value (normal);
 549
 550                 _adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &Control::slider_adjusted));
 551                 c->Changed.connect (_connection, MISSING_INVALIDATOR, boost::bind (&Control::control_changed, this), gui_context ());
 552         }
 553
 554         Timers::rapid_connect (sigc::mem_fun (*this, &Control::control_changed));
 555
 556         control_changed ();
 557         set_tooltip ();
 558
 559         /* We're providing our own PersistentTooltip */
 560         set_no_tooltip_whatsoever (_slider);
 561 }
 562
 563 void
 564 ProcessorEntry::Control::set_tooltip ()
 565 {
 566         boost::shared_ptr<AutomationControl> c = _control.lock ();
 567
 568         if (!c) {
 569                 return;
 570         }
 571
 572         stringstream s;
 573         s << _name << ": ";
 574         if (c->toggled ()) {
 575                 s << (c->get_value() > 0.5 ? _("on") : _("off"));
 576         } else {
 577                 s << setprecision(2) << fixed;
 578                 s << c->internal_to_user (c->get_value ());
 579         }
 580
 581         string sm = Glib::Markup::escape_text (s.str());
 582
 583         _slider_persistant_tooltip.set_tip (sm);
 584         ARDOUR_UI::instance()->set_tip (_button, sm);
 585 }
 586
 587 void
 588 ProcessorEntry::Control::slider_adjusted ()
 589 {
 590         if (_ignore_ui_adjustment) {
 591                 return;
 592         }
 593
 594         boost::shared_ptr<AutomationControl> c = _control.lock ();
 595
 596         if (!c) {
 597                 return;
 598         }
 599
 600         c->set_value ( c->interface_to_internal(_adjustment.get_value ()) );
 601         set_tooltip ();
 602 }
 603
 604 void
 605 ProcessorEntry::Control::button_clicked ()
 606 {
 607         boost::shared_ptr<AutomationControl> c = _control.lock ();
 608
 609         if (!c) {
 610                 return;
 611         }
 612
 613         bool const n = _button.get_active ();
 614
 615         c->set_value (n ? 0 : 1);
 616         _button.set_active (!n);
 617         set_tooltip ();
 618 }
 619
 620 void
 621 ProcessorEntry::Control::control_changed ()
 622 {
 623         boost::shared_ptr<AutomationControl> c = _control.lock ();
 624         if (!c) {
 625                 return;
 626         }
 627
 628         _ignore_ui_adjustment = true;
 629
 630         if (c->toggled ()) {
 631
 632                 _button.set_active (c->get_value() > 0.5);
 633
 634         } else {
 635
 636                 _adjustment.set_value (c->internal_to_interface(c->get_value ()));
 637
 638                 stringstream s;
 639                 s.precision (1);
 640                 s.setf (ios::fixed, ios::floatfield);
 641                 s << c->internal_to_user (c->get_value ());
 642         }
 643
 644         _ignore_ui_adjustment = false;
 645 }
 646
 647 void
 648 ProcessorEntry::Control::add_state (XMLNode* node) const
 649 {
 650         XMLNode* c = new XMLNode (X_("Object"));
 651         c->add_property (X_("id"), state_id ());
 652         c->add_property (X_("visible"), _visible);
 653         node->add_child_nocopy (*c);
 654 }
 655
 656 void
 657 ProcessorEntry::Control::set_state (XMLNode const * node)
 658 {
 659         XMLNode* n = GUIObjectState::get_node (node, state_id ());
 660         if (n) {
 661                 XMLProperty* p = n->property (X_("visible"));
 662                 set_visible (p && string_is_affirmative (p->value ()));
 663         } else {
 664                 set_visible (false);
 665         }
 666 }
 667
 668 void
 669 ProcessorEntry::Control::set_visible (bool v)
 670 {
 671         if (v) {
 672                 box.show ();
 673         } else {
 674                 box.hide ();
 675         }
 676
 677         _visible = v;
 678 }
 679
 680 /** Called when the Editor might have re-shown things that
 681     we want hidden.
 682 */
 683 void
 684 ProcessorEntry::Control::hide_things ()
 685 {
 686         if (!_visible) {
 687                 box.hide ();
 688         }
 689 }
 690
 691 string
 692 ProcessorEntry::Control::state_id () const
 693 {
 694         boost::shared_ptr<AutomationControl> c = _control.lock ();
 695         assert (c);
 696
 697         return string_compose (X_("control %1"), c->id().to_s ());
 698 }
 699
 700 PluginInsertProcessorEntry::PluginInsertProcessorEntry (ProcessorBox* b, boost::shared_ptr<ARDOUR::PluginInsert> p, Width w)
 701         : ProcessorEntry (b, p, w)
 702         , _plugin_insert (p)
 703 {
 704         p->PluginIoReConfigure.connect (
 705                 _splitting_connection, invalidator (*this), boost::bind (&PluginInsertProcessorEntry::plugin_insert_splitting_changed, this), gui_context()
 706                 );
 707
 708         plugin_insert_splitting_changed ();
 709 }
 710
 711 void
 712 PluginInsertProcessorEntry::plugin_insert_splitting_changed ()
 713 {
 714         _output_icon.set_ports(_plugin_insert->output_streams());
 715         _routing_icon.set_splitting(_plugin_insert->splitting ());
 716
 717         ChanCount sources = _plugin_insert->input_streams();
 718         ChanCount sinks = _plugin_insert->natural_input_streams();
 719
 720         /* replicated instances */
 721         if (!_plugin_insert->splitting () && _plugin_insert->get_count() > 1) {
 722                 for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
 723                         sinks.set(*t, sinks.get(*t) * _plugin_insert->get_count());
 724                 }
 725         }
 726         /* MIDI bypass */
 727         if (_plugin_insert->natural_output_streams().n_midi() == 0 &&
 728                         _plugin_insert->output_streams().n_midi() == 1) {
 729                 sinks.set(DataType::MIDI, 1);
 730                 sources.set(DataType::MIDI, 1);
 731         }
 732
 733         _input_icon.set_ports(sinks);
 734         _routing_icon.set_sinks(sinks);
 735         _routing_icon.set_sources(sources);
 736
 737         if (_plugin_insert->splitting () ||
 738                         _plugin_insert->input_streams().n_audio() < _plugin_insert->natural_input_streams().n_audio()
 739                  )
 740         {
 741                 _routing_icon.set_size_request (-1, 7);
 742                 _routing_icon.set_visible(true);
 743                 _input_icon.show();
 744         } else {
 745                 _routing_icon.set_visible(false);
 746                 if (_position_num != 0) {
 747                         _input_icon.hide();
 748                 }
 749         }
 750
 751         _input_icon.queue_draw();
 752         _output_icon.queue_draw();
 753         _routing_icon.queue_draw();
 754 }
 755
 756 void
 757 PluginInsertProcessorEntry::hide_things ()
 758 {
 759         ProcessorEntry::hide_things ();
 760         plugin_insert_splitting_changed ();
 761 }
 762
 763
 764 bool
 765 ProcessorEntry::PortIcon::on_expose_event (GdkEventExpose* ev)
 766 {
 767         cairo_t* cr = gdk_cairo_create (get_window()->gobj());
 768
 769         cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
 770         cairo_clip (cr);
 771
 772         Gtk::Allocation a = get_allocation();
 773         double const width = a.get_width();
 774         double const height = a.get_height();
 775
 776         Gdk::Color const bg = get_style()->get_bg (STATE_NORMAL);
 777         cairo_set_source_rgb (cr, bg.get_red_p (), bg.get_green_p (), bg.get_blue_p ());
 778
 779         cairo_rectangle (cr, 0, 0, width, height);
 780         cairo_fill (cr);
 781
 782         if (_ports.n_total() > 1) {
 783                 for (uint32_t i = 0; i < _ports.n_total(); ++i) {
 784                         if (i < _ports.n_midi()) {
 785                                 cairo_set_source_rgb (cr,
 786                                                 UINT_RGBA_R_FLT(midi_port_color),
 787                                                 UINT_RGBA_G_FLT(midi_port_color),
 788                                                 UINT_RGBA_B_FLT(midi_port_color));
 789                         } else {
 790                                 cairo_set_source_rgb (cr,
 791                                                 UINT_RGBA_R_FLT(audio_port_color),
 792                                                 UINT_RGBA_G_FLT(audio_port_color),
 793                                                 UINT_RGBA_B_FLT(audio_port_color));
 794                         }
 795                         const float x = rintf(width * (.2f + .6f * i / (_ports.n_total() - 1.f)));
 796                         cairo_rectangle (cr, x-1, 0, 3, height);
 797                         cairo_fill(cr);
 798                 }
 799         } else if (_ports.n_total() == 1) {
 800                 if (_ports.n_midi() == 1) {
 801                         cairo_set_source_rgb (cr,
 802                                         UINT_RGBA_R_FLT(midi_port_color),
 803                                         UINT_RGBA_G_FLT(midi_port_color),
 804                                         UINT_RGBA_B_FLT(midi_port_color));
 805                 } else {
 806                         cairo_set_source_rgb (cr,
 807                                         UINT_RGBA_R_FLT(audio_port_color),
 808                                         UINT_RGBA_G_FLT(audio_port_color),
 809                                         UINT_RGBA_B_FLT(audio_port_color));
 810                 }
 811                 const float x = rintf(width * .5);
 812                 cairo_rectangle (cr, x-1, 0, 3, height);
 813                 cairo_fill(cr);
 814                 cairo_stroke(cr);
 815         }
 816
 817         cairo_destroy(cr);
 818         return true;
 819 }
 820
 821 bool
 822 ProcessorEntry::RoutingIcon::on_expose_event (GdkEventExpose* ev)
 823 {
 824         cairo_t* cr = gdk_cairo_create (get_window()->gobj());
 825
 826         cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
 827         cairo_clip (cr);
 828
 829         cairo_set_line_width (cr, 1.0);
 830         cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
 831
 832         Gtk::Allocation a = get_allocation();
 833         double const width = a.get_width();
 834         double const height = a.get_height();
 835
 836         Gdk::Color const bg = get_style()->get_bg (STATE_NORMAL);
 837         cairo_set_source_rgb (cr, bg.get_red_p (), bg.get_green_p (), bg.get_blue_p ());
 838
 839         cairo_rectangle (cr, 0, 0, width, height);
 840         cairo_fill (cr);
 841
 842         Gdk::Color const fg = get_style()->get_fg (STATE_NORMAL);
 843         cairo_set_source_rgb (cr, fg.get_red_p (), fg.get_green_p (), fg.get_blue_p ());
 844
 845         const uint32_t sources = _sources.n_total();
 846         const uint32_t sinks = _sinks.n_total();
 847
 848         /* MIDI */
 849         const uint32_t midi_sources = _sources.n_midi();
 850         const uint32_t midi_sinks = _sinks.n_midi();
 851
 852         cairo_set_source_rgb (cr,
 853                         UINT_RGBA_R_FLT(midi_port_color),
 854                         UINT_RGBA_G_FLT(midi_port_color),
 855                         UINT_RGBA_B_FLT(midi_port_color));
 856         if (midi_sources > 0 && midi_sinks > 0 && sinks > 1 && sources > 1) {
 857                 for (uint32_t i = 0 ; i < midi_sources; ++i) {
 858                         const float si_x  = rintf(width * (.2f + .6f * i  / (sinks - 1.f))) + .5f;
 859                         const float si_x0 = rintf(width * (.2f + .6f * i / (sources - 1.f))) + .5f;
 860                         cairo_move_to (cr, si_x, height);
 861                         cairo_curve_to (cr, si_x, 0, si_x0, height, si_x0, 0);
 862                         cairo_stroke (cr);
 863                 }
 864         } else if (midi_sources == 1 && midi_sinks == 1 && sinks == 1 && sources == 1) {
 865                 const float si_x = rintf(width * .5f) + .5f;
 866                 cairo_move_to (cr, si_x, height);
 867                 cairo_line_to (cr, si_x, 0);
 868                 cairo_stroke (cr);
 869         } else if (midi_sources == 1 && midi_sinks == 1) {
 870                 /* unusual cases -- removed synth, midi-track w/audio plugins */
 871                 const float si_x  = rintf(width * (sinks   > 1 ? .2f : .5f)) + .5f;
 872                 const float si_x0 = rintf(width * (sources > 1 ? .2f : .5f)) + .5f;
 873                 cairo_move_to (cr, si_x, height);
 874                 cairo_curve_to (cr, si_x, 0, si_x0, height, si_x0, 0);
 875                 cairo_stroke (cr);
 876         }
 877
 878         /* AUDIO */
 879         const uint32_t audio_sources = _sources.n_audio();
 880         const uint32_t audio_sinks = _sinks.n_audio();
 881         cairo_set_source_rgb (cr,
 882                         UINT_RGBA_R_FLT(audio_port_color),
 883                         UINT_RGBA_G_FLT(audio_port_color),
 884                         UINT_RGBA_B_FLT(audio_port_color));
 885
 886         if (_splitting) {
 887                 assert(audio_sources < 2);
 888                 assert(audio_sinks > 1);
 889                 /* assume there is only ever one MIDI port */
 890                 const float si_x0 = rintf(width * (midi_sources > 0 ? .8f : .5f)) + .5f;
 891                 for (uint32_t i = midi_sinks; i < sinks; ++i) {
 892                         const float si_x = rintf(width * (.2f + .6f * i / (sinks - 1.f))) + .5f;
 893                         cairo_move_to (cr, si_x, height);
 894                         cairo_curve_to (cr, si_x, 0, si_x0, height, si_x0, 0);
 895                         cairo_stroke (cr);
 896                 }
 897         } else if (audio_sources > 1) {
 898                 for (uint32_t i = 0 ; i < audio_sources; ++i) {
 899                         const float si_x = rintf(width * (.2f + .6f * (i + midi_sinks) / (sinks - 1.f))) + .5f;
 900                         const float si_x0 = rintf(width * (.2f + .6f * (i + midi_sources) / (sources - 1.f))) + .5f;
 901                         cairo_move_to (cr, si_x, height);
 902                         cairo_curve_to (cr, si_x, 0, si_x0, height, si_x0, 0);
 903                         cairo_stroke (cr);
 904                 }
 905         } else if (audio_sources == 1 && audio_sinks == 1) {
 906                 const float si_x = rintf(width * .5f) + .5f;
 907                 cairo_move_to (cr, si_x, height);
 908                 cairo_line_to (cr, si_x, 0);
 909                 cairo_stroke (cr);
 910         }
 911         cairo_destroy(cr);
 912         return true;
 913 }
 914
 915 ProcessorBox::ProcessorBox (ARDOUR::Session* sess, boost::function<PluginSelector*()> get_plugin_selector,
 916                             RouteProcessorSelection& rsel, MixerStrip* parent, bool owner_is_mixer)
 917         : _parent_strip (parent)
 918         , _owner_is_mixer (owner_is_mixer)
 919         , ab_direction (true)
 920         , _get_plugin_selector (get_plugin_selector)
 921         , _placement (-1)
 922         , _visible_prefader_processors (0)
 923         , _rr_selection(rsel)
 924         , _redisplay_pending (false)
 925
 926 {
 927         set_session (sess);
 928
 929         _width = Wide;
 930         processor_menu = 0;
 931         no_processor_redisplay = false;
 932
 933         processor_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 934         processor_scroller.add (processor_display);
 935         pack_start (processor_scroller, true, true);
 936
 937         processor_display.set_flags (CAN_FOCUS);
 938         processor_display.set_name ("ProcessorList");
 939         processor_display.set_data ("processorbox", this);
 940         processor_display.set_size_request (48, -1);
 941         processor_display.set_spacing (0);
 942
 943         processor_display.signal_enter_notify_event().connect (sigc::mem_fun(*this, &ProcessorBox::enter_notify), false);
 944         processor_display.signal_leave_notify_event().connect (sigc::mem_fun(*this, &ProcessorBox::leave_notify), false);
 945
 946         processor_display.ButtonPress.connect (sigc::mem_fun (*this, &ProcessorBox::processor_button_press_event));
 947         processor_display.ButtonRelease.connect (sigc::mem_fun (*this, &ProcessorBox::processor_button_release_event));
 948
 949         processor_display.Reordered.connect (sigc::mem_fun (*this, &ProcessorBox::reordered));
 950         processor_display.DropFromAnotherBox.connect (sigc::mem_fun (*this, &ProcessorBox::object_drop));
 951
 952         processor_scroller.show ();
 953         processor_display.show ();
 954
 955         if (parent) {
 956                 parent->DeliveryChanged.connect (
 957                         _mixer_strip_connections, invalidator (*this), boost::bind (&ProcessorBox::mixer_strip_delivery_changed, this, _1), gui_context ()
 958                         );
 959         }
 960
 961         ARDOUR_UI::instance()->set_tip (processor_display, _("Right-click to add/remove/edit\nplugins,inserts,sends and more"));
 962 }
 963
 964 ProcessorBox::~ProcessorBox ()
 965 {
 966         /* it may appear as if we should delete processor_menu but that is a
 967          * pointer to a widget owned by the UI Manager, and has potentially
 968          * be returned to many other ProcessorBoxes. GTK doesn't really make
 969          * clear the ownership of this widget, which is a menu and thus is
 970          * never packed into any container other than an implict GtkWindow.
 971          *
 972          * For now, until or if we ever get clarification over the ownership
 973          * story just let it continue to exist. At worst, its a small memory leak.
 974          */
 975 }
 976
 977 void
 978 ProcessorBox::set_route (boost::shared_ptr<Route> r)
 979 {
 980         if (_route == r) {
 981                 return;
 982         }
 983
 984         _route_connections.drop_connections();
 985
 986         /* new route: any existing block on processor redisplay must be meaningless */
 987         no_processor_redisplay = false;
 988         _route = r;
 989
 990         _route->processors_changed.connect (
 991                 _route_connections, invalidator (*this), boost::bind (&ProcessorBox::route_processors_changed, this, _1), gui_context()
 992                 );
 993
 994         _route->DropReferences.connect (
 995                 _route_connections, invalidator (*this), boost::bind (&ProcessorBox::route_going_away, this), gui_context()
 996                 );
 997
 998         _route->PropertyChanged.connect (
 999                 _route_connections, invalidator (*this), boost::bind (&ProcessorBox::route_property_changed, this, _1), gui_context()
1000                 );
1001
1002         redisplay_processors ();
1003 }
1004
1005 void
1006 ProcessorBox::route_going_away ()
1007 {
1008         /* don't keep updating display as processors are deleted */
1009         no_processor_redisplay = true;
1010         _route.reset ();
1011 }
1012
1013 void
1014 ProcessorBox::object_drop(DnDVBox<ProcessorEntry>* source, ProcessorEntry* position, Glib::RefPtr<Gdk::DragContext> const & context)
1015 {
1016         boost::shared_ptr<Processor> p;
1017         if (position) {
1018                 p = position->processor ();
1019                 if (!p) {
1020                         /* dropped on the blank entry (which will be before the
1021                            fader), so use the first non-blank child as our
1022                            `dropped on' processor */
1023                         list<ProcessorEntry*> c = processor_display.children ();
1024                         list<ProcessorEntry*>::iterator i = c.begin ();
1025
1026                         assert (i != c.end ());
1027                         p = (*i)->processor ();
1028                         assert (p);
1029                 }
1030         }
1031
1032         list<ProcessorEntry*> children = source->selection ();
1033         list<boost::shared_ptr<Processor> > procs;
1034         for (list<ProcessorEntry*>::const_iterator i = children.begin(); i != children.end(); ++i) {
1035                 if ((*i)->processor ()) {
1036                         procs.push_back ((*i)->processor ());
1037                 }
1038         }
1039
1040         for (list<boost::shared_ptr<Processor> >::const_iterator i = procs.begin(); i != procs.end(); ++i) {
1041                 XMLNode& state = (*i)->get_state ();
1042                 XMLNodeList nlist;
1043                 nlist.push_back (&state);
1044                 paste_processor_state (nlist, p);
1045                 delete &state;
1046         }
1047
1048         /* since the dndvbox doesn't take care of this properly, we have to delete the originals
1049            ourselves.
1050         */
1051
1052         if ((context->get_suggested_action() == Gdk::ACTION_MOVE) && source) {
1053                 ProcessorBox* other = reinterpret_cast<ProcessorBox*> (source->get_data ("processorbox"));
1054                 if (other) {
1055                         other->delete_dragged_processors (procs);
1056                 }
1057         }
1058 }
1059
1060 void
1061 ProcessorBox::set_width (Width w)
1062 {
1063         if (_width == w) {
1064                 return;
1065         }
1066
1067         _width = w;
1068
1069         list<ProcessorEntry*> children = processor_display.children ();
1070         for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
1071                 (*i)->set_enum_width (w);
1072         }
1073
1074         queue_resize ();
1075 }
1076
1077 Gtk::Menu*
1078 ProcessorBox::build_possible_aux_menu ()
1079 {
1080         boost::shared_ptr<RouteList> rl = _session->get_routes_with_internal_returns();
1081
1082         if (rl->empty()) {
1083                 /* No aux sends if there are no busses */
1084                 return 0;
1085         }
1086
1087         using namespace Menu_Helpers;
1088         Menu* menu = manage (new Menu);
1089         MenuList& items = menu->items();
1090
1091         for (RouteList::iterator r = rl->begin(); r != rl->end(); ++r) {
1092                 if (!_route->internal_send_for (*r) && *r != _route) {
1093                         items.push_back (MenuElem ((*r)->name(), sigc::bind (sigc::ptr_fun (ProcessorBox::rb_choose_aux), boost::weak_ptr<Route>(*r))));
1094                 }
1095         }
1096
1097         return menu;
1098 }
1099
1100 void
1101 ProcessorBox::show_processor_menu (int arg)
1102 {
1103         if (processor_menu == 0) {
1104                 processor_menu = build_processor_menu ();
1105                 processor_menu->signal_unmap().connect (sigc::mem_fun (*this, &ProcessorBox::processor_menu_unmapped));
1106         }
1107
1108         /* Sort out the plugin submenu */
1109
1110         Gtk::MenuItem* plugin_menu_item = dynamic_cast<Gtk::MenuItem*>(ActionManager::get_widget("/ProcessorMenu/newplugin"));
1111
1112         if (plugin_menu_item) {
1113                 plugin_menu_item->set_submenu (*_get_plugin_selector()->plugin_menu());
1114         }
1115
1116         /* And the aux submenu */
1117
1118         Gtk::MenuItem* aux_menu_item = dynamic_cast<Gtk::MenuItem*>(ActionManager::get_widget("/ProcessorMenu/newaux"));
1119
1120         if (aux_menu_item) {
1121                 Menu* m = build_possible_aux_menu();
1122                 if (m && !m->items().empty()) {
1123                         aux_menu_item->set_submenu (*m);
1124                         aux_menu_item->set_sensitive (true);
1125                 } else {
1126                         /* stupid gtkmm: we need to pass a null reference here */
1127                         gtk_menu_item_set_submenu (aux_menu_item->gobj(), 0);
1128                         aux_menu_item->set_sensitive (false);
1129                 }
1130         }
1131
1132         ProcessorEntry* single_selection = 0;
1133         if (processor_display.selection().size() == 1) {
1134                 single_selection = processor_display.selection().front();
1135         }
1136
1137         /* And the controls submenu */
1138
1139         Gtk::MenuItem* controls_menu_item = dynamic_cast<Gtk::MenuItem*>(ActionManager::get_widget("/ProcessorMenu/controls"));
1140
1141         if (controls_menu_item) {
1142                 if (single_selection) {
1143                         Menu* m = single_selection->build_controls_menu ();
1144                         if (m && !m->items().empty()) {
1145                                 controls_menu_item->set_submenu (*m);
1146                                 controls_menu_item->set_sensitive (true);
1147                         } else {
1148                                 gtk_menu_item_set_submenu (controls_menu_item->gobj(), 0);
1149                                 controls_menu_item->set_sensitive (false);
1150                         }
1151                 }
1152         }
1153
1154         Gtk::MenuItem* send_menu_item = dynamic_cast<Gtk::MenuItem*>(ActionManager::get_widget("/ProcessorMenu/send_options"));
1155         if (send_menu_item) {
1156                 if (single_selection) {
1157                         Menu* m = single_selection->build_send_options_menu ();
1158                         if (m && !m->items().empty()) {
1159                                 send_menu_item->set_submenu (*m);
1160                                 send_menu_item->set_sensitive (true);
1161                         } else {
1162                                 gtk_menu_item_set_submenu (send_menu_item->gobj(), 0);
1163                                 send_menu_item->set_sensitive (false);
1164                         }
1165                 }
1166         }
1167
1168         /* Sensitise actions as approprioate */
1169
1170         cut_action->set_sensitive (can_cut());
1171         paste_action->set_sensitive (!_rr_selection.processors.empty());
1172
1173         const bool sensitive = !processor_display.selection().empty();
1174         ActionManager::set_sensitive (ActionManager::plugin_selection_sensitive_actions, sensitive);
1175         edit_action->set_sensitive (one_processor_can_be_edited ());
1176         edit_generic_action->set_sensitive (one_processor_can_be_edited ());
1177
1178         boost::shared_ptr<PluginInsert> pi;
1179         if (single_selection) {
1180                 pi = boost::dynamic_pointer_cast<PluginInsert> (single_selection->processor ());
1181         }
1182
1183         /* allow editing with an Ardour-generated UI for plugin inserts with editors */
1184         edit_action->set_sensitive (pi && pi->plugin()->has_editor ());
1185
1186         /* disallow rename for multiple selections, for plugin inserts and for the fader */
1187         rename_action->set_sensitive (single_selection && !pi && !boost::dynamic_pointer_cast<Amp> (single_selection->processor ()));
1188
1189         processor_menu->popup (1, arg);
1190
1191         /* Add a placeholder gap to the processor list to indicate where a processor would be
1192            inserted were one chosen from the menu.
1193         */
1194         int x, y;
1195         processor_display.get_pointer (x, y);
1196         _placement = processor_display.add_placeholder (y);
1197
1198         if (_visible_prefader_processors == 0 && _placement > 0) {
1199                 --_placement;
1200         }
1201 }
1202
1203 bool
1204 ProcessorBox::enter_notify (GdkEventCrossing*)
1205 {
1206         _current_processor_box = this;
1207         return false;
1208 }
1209
1210 bool
1211 ProcessorBox::leave_notify (GdkEventCrossing*)
1212 {
1213         return false;
1214 }
1215
1216 bool
1217 ProcessorBox::processor_operation (ProcessorOperation op)
1218 {
1219         ProcSelection targets;
1220
1221         get_selected_processors (targets);
1222
1223 /*      if (targets.empty()) {
1224
1225                 int x, y;
1226                 processor_display.get_pointer (x, y);
1227
1228                 pair<ProcessorEntry *, double> const pointer = processor_display.get_child_at_position (y);
1229
1230                 if (pointer.first && pointer.first->processor()) {
1231                         targets.push_back (pointer.first->processor ());
1232                 }
1233         }
1234 */
1235
1236         if ( (op == ProcessorsDelete) && targets.empty() )
1237                 return false;  //nothing to delete.  return false so the editor-mixer, because the user was probably intending to delete something in the editor
1238
1239         switch (op) {
1240         case ProcessorsSelectAll:
1241                 processor_display.select_all ();
1242                 break;
1243
1244         case ProcessorsSelectNone:
1245                 processor_display.select_none ();
1246                 break;
1247
1248         case ProcessorsCopy:
1249                 copy_processors (targets);
1250                 break;
1251
1252         case ProcessorsCut:
1253                 cut_processors (targets);
1254                 break;
1255
1256         case ProcessorsPaste:
1257                 if (targets.empty()) {
1258                         paste_processors ();
1259                 } else {
1260                         paste_processors (targets.front());
1261                 }
1262                 break;
1263
1264         case ProcessorsDelete:
1265                 delete_processors (targets);
1266                 break;
1267
1268         case ProcessorsToggleActive:
1269                 for (ProcSelection::iterator i = targets.begin(); i != targets.end(); ++i) {
1270                         if ((*i)->active()) {
1271                                 (*i)->deactivate ();
1272                         } else {
1273                                 (*i)->activate ();
1274                         }
1275                 }
1276                 break;
1277
1278         case ProcessorsAB:
1279                 ab_plugins ();
1280                 break;
1281
1282         default:
1283                 break;
1284         }
1285
1286         return true;
1287 }
1288
1289 ProcessorWindowProxy*
1290 ProcessorBox::find_window_proxy (boost::shared_ptr<Processor> processor) const
1291 {
1292         return  processor->window_proxy();
1293 }
1294
1295
1296 bool
1297 ProcessorBox::processor_button_press_event (GdkEventButton *ev, ProcessorEntry* child)
1298 {
1299         boost::shared_ptr<Processor> processor;
1300         if (child) {
1301                 processor = child->processor ();
1302         }
1303
1304         int ret = false;
1305         bool selected = processor_display.selected (child);
1306
1307         if (processor && (Keyboard::is_edit_event (ev) || (ev->button == 1 && ev->type == GDK_2BUTTON_PRESS))) {
1308
1309                 if (_session->engine().connected()) {
1310                         /* XXX giving an error message here is hard, because we may be in the midst of a button press */
1311
1312                         if (!one_processor_can_be_edited ()) return true;
1313
1314                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier)) {
1315                                 generic_edit_processor (processor);
1316                         } else {
1317                                 edit_processor (processor);
1318                         }
1319                 }
1320
1321                 ret = true;
1322
1323         } else if (Keyboard::is_context_menu_event (ev)) {
1324
1325                 show_processor_menu (ev->time);
1326
1327                 ret = true;
1328
1329         } else if (processor && ev->button == 1 && selected) {
1330
1331                 // this is purely informational but necessary for route params UI
1332                 ProcessorSelected (processor); // emit
1333
1334         } else if (!processor && ev->button == 1 && ev->type == GDK_2BUTTON_PRESS) {
1335
1336                 choose_plugin ();
1337                 _get_plugin_selector()->show_manager ();
1338         }
1339
1340         return ret;
1341 }
1342
1343 bool
1344 ProcessorBox::processor_button_release_event (GdkEventButton *ev, ProcessorEntry* child)
1345 {
1346         boost::shared_ptr<Processor> processor;
1347         if (child) {
1348                 processor = child->processor ();
1349         }
1350
1351         if (processor && Keyboard::is_delete_event (ev)) {
1352
1353                 Glib::signal_idle().connect (sigc::bind (
1354                                 sigc::mem_fun(*this, &ProcessorBox::idle_delete_processor),
1355                                 boost::weak_ptr<Processor>(processor)));
1356
1357         } else if (processor && Keyboard::is_button2_event (ev)
1358 #ifndef GTKOSX
1359                    && (Keyboard::no_modifier_keys_pressed (ev) && ((ev->state & Gdk::BUTTON2_MASK) == Gdk::BUTTON2_MASK))
1360 #endif
1361                 ) {
1362
1363                 /* button2-click with no/appropriate modifiers */
1364
1365                 if (processor->active()) {
1366                         processor->deactivate ();
1367                 } else {
1368                         processor->activate ();
1369                 }
1370         }
1371
1372         return false;
1373 }
1374
1375 Menu *
1376 ProcessorBox::build_processor_menu ()
1377 {
1378         processor_menu = dynamic_cast<Gtk::Menu*>(ActionManager::get_widget("/ProcessorMenu") );
1379         processor_menu->set_name ("ArdourContextMenu");
1380         return processor_menu;
1381 }
1382
1383 void
1384 ProcessorBox::select_all_processors ()
1385 {
1386         processor_display.select_all ();
1387 }
1388
1389 void
1390 ProcessorBox::deselect_all_processors ()
1391 {
1392         processor_display.select_none ();
1393 }
1394
1395 void
1396 ProcessorBox::choose_plugin ()
1397 {
1398         _get_plugin_selector()->set_interested_object (*this);
1399 }
1400
1401 /** @return true if an error occurred, otherwise false */
1402 bool
1403 ProcessorBox::use_plugins (const SelectedPlugins& plugins)
1404 {
1405         for (SelectedPlugins::const_iterator p = plugins.begin(); p != plugins.end(); ++p) {
1406
1407                 boost::shared_ptr<Processor> processor (new PluginInsert (*_session, *p));
1408
1409                 Route::ProcessorStreams err_streams;
1410
1411                 if (_route->add_processor_by_index (processor, _placement, &err_streams, Config->get_new_plugins_active ())) {
1412                         weird_plugin_dialog (**p, err_streams);
1413                         return true;
1414                         // XXX SHAREDPTR delete plugin here .. do we even need to care?
1415                 } else {
1416
1417                         if (Profile->get_sae()) {
1418                                 processor->activate ();
1419                         }
1420                 }
1421         }
1422
1423         return false;
1424 }
1425
1426 void
1427 ProcessorBox::weird_plugin_dialog (Plugin& p, Route::ProcessorStreams streams)
1428 {
1429         ArdourDialog dialog (_("Plugin Incompatibility"));
1430         Label label;
1431
1432         string text = string_compose(_("You attempted to add the plugin \"%1\" in slot %2.\n"),
1433                         p.name(), streams.index);
1434
1435         bool has_midi  = streams.count.n_midi() > 0 || p.get_info()->n_inputs.n_midi() > 0;
1436         bool has_audio = streams.count.n_audio() > 0 || p.get_info()->n_inputs.n_audio() > 0;
1437
1438         text += _("\nThis plugin has:\n");
1439         if (has_midi) {
1440                 uint32_t const n = p.get_info()->n_inputs.n_midi ();
1441                 text += string_compose (ngettext ("\t%1 MIDI input\n", "\t%1 MIDI inputs\n", n), n);
1442         }
1443         if (has_audio) {
1444                 uint32_t const n = p.get_info()->n_inputs.n_audio ();
1445                 text += string_compose (ngettext ("\t%1 audio input\n", "\t%1 audio inputs\n", n), n);
1446         }
1447
1448         text += _("\nbut at the insertion point, there are:\n");
1449         if (has_midi) {
1450                 uint32_t const n = streams.count.n_midi ();
1451                 text += string_compose (ngettext ("\t%1 MIDI channel\n", "\t%1 MIDI channels\n", n), n);
1452         }
1453         if (has_audio) {
1454                 uint32_t const n = streams.count.n_audio ();
1455                 text += string_compose (ngettext ("\t%1 audio channel\n", "\t%1 audio channels\n", n), n);
1456         }
1457
1458         text += string_compose (_("\n%1 is unable to insert this plugin here.\n"), PROGRAM_NAME);
1459         label.set_text(text);
1460
1461         dialog.get_vbox()->pack_start (label);
1462         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1463
1464         dialog.set_name (X_("PluginIODialog"));
1465         dialog.set_modal (true);
1466         dialog.show_all ();
1467
1468         dialog.run ();
1469 }
1470
1471 void
1472 ProcessorBox::choose_insert ()
1473 {
1474         boost::shared_ptr<Processor> processor (new PortInsert (*_session, _route->pannable(), _route->mute_master()));
1475         _route->add_processor_by_index (processor, _placement);
1476 }
1477
1478 /* Caller must not hold process lock */
1479 void
1480 ProcessorBox::choose_send ()
1481 {
1482         boost::shared_ptr<Pannable> sendpan(new Pannable (*_session));
1483         boost::shared_ptr<Send> send (new Send (*_session, sendpan, _route->mute_master()));
1484
1485         /* make an educated guess at the initial number of outputs for the send */
1486         ChanCount outs = (_session->master_out())
1487                         ? _session->master_out()->n_outputs()
1488                         : _route->n_outputs();
1489
1490         /* XXX need processor lock on route */
1491         try {
1492                 Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock());
1493                 send->output()->ensure_io (outs, false, this);
1494         } catch (AudioEngine::PortRegistrationFailure& err) {
1495                 error << string_compose (_("Cannot set up new send: %1"), err.what()) << endmsg;
1496                 return;
1497         }
1498
1499         /* let the user adjust the IO setup before creation.
1500
1501            Note: this dialog is NOT modal - we just leave it to run and it will
1502            return when its Finished signal is emitted - typically when the window
1503            is closed.
1504          */
1505
1506         IOSelectorWindow *ios = new IOSelectorWindow (_session, send->output(), true);
1507         ios->show ();
1508
1509         /* keep a reference to the send so it doesn't get deleted while
1510            the IOSelectorWindow is doing its stuff
1511         */
1512         _processor_being_created = send;
1513
1514         ios->selector().Finished.connect (sigc::bind (
1515                         sigc::mem_fun(*this, &ProcessorBox::send_io_finished),
1516                         boost::weak_ptr<Processor>(send), ios));
1517
1518 }
1519
1520 void
1521 ProcessorBox::send_io_finished (IOSelector::Result r, boost::weak_ptr<Processor> weak_processor, IOSelectorWindow* ios)
1522 {
1523         boost::shared_ptr<Processor> processor (weak_processor.lock());
1524
1525         /* drop our temporary reference to the new send */
1526         _processor_being_created.reset ();
1527
1528         if (!processor) {
1529                 return;
1530         }
1531
1532         switch (r) {
1533         case IOSelector::Cancelled:
1534                 // processor will go away when all shared_ptrs to it vanish
1535                 break;
1536
1537         case IOSelector::Accepted:
1538                 _route->add_processor_by_index (processor, _placement);
1539                 if (Profile->get_sae()) {
1540                         processor->activate ();
1541                 }
1542                 break;
1543         }
1544
1545         delete_when_idle (ios);
1546 }
1547
1548 void
1549 ProcessorBox::return_io_finished (IOSelector::Result r, boost::weak_ptr<Processor> weak_processor, IOSelectorWindow* ios)
1550 {
1551         boost::shared_ptr<Processor> processor (weak_processor.lock());
1552
1553         /* drop our temporary reference to the new return */
1554         _processor_being_created.reset ();
1555
1556         if (!processor) {
1557                 return;
1558         }
1559
1560         switch (r) {
1561         case IOSelector::Cancelled:
1562                 // processor will go away when all shared_ptrs to it vanish
1563                 break;
1564
1565         case IOSelector::Accepted:
1566                 _route->add_processor_by_index (processor, _placement);
1567                 if (Profile->get_sae()) {
1568                         processor->activate ();
1569                 }
1570                 break;
1571         }
1572
1573         delete_when_idle (ios);
1574 }
1575
1576 void
1577 ProcessorBox::choose_aux (boost::weak_ptr<Route> wr)
1578 {
1579         if (!_route) {
1580                 return;
1581         }
1582
1583         boost::shared_ptr<Route> target = wr.lock();
1584
1585         if (!target) {
1586                 return;
1587         }
1588
1589         _session->add_internal_send (target, _placement, _route);
1590 }
1591
1592 void
1593 ProcessorBox::route_processors_changed (RouteProcessorChange c)
1594 {
1595         if (c.type == RouteProcessorChange::MeterPointChange && c.meter_visibly_changed == false) {
1596                 /* the meter has moved, but it was and still is invisible to the user, so nothing to do */
1597                 return;
1598         }
1599
1600         redisplay_processors ();
1601 }
1602
1603 void
1604 ProcessorBox::redisplay_processors ()
1605 {
1606         ENSURE_GUI_THREAD (*this, &ProcessorBox::redisplay_processors);
1607         bool     fader_seen;
1608
1609         if (no_processor_redisplay) {
1610                 return;
1611         }
1612
1613         processor_display.clear ();
1614
1615         _visible_prefader_processors = 0;
1616         fader_seen = false;
1617
1618         _route->foreach_processor (sigc::bind (sigc::mem_fun (*this, &ProcessorBox::help_count_visible_prefader_processors),
1619                                                &_visible_prefader_processors, &fader_seen));
1620
1621         _route->foreach_processor (sigc::mem_fun (*this, &ProcessorBox::add_processor_to_display));
1622         _route->foreach_processor (sigc::mem_fun (*this, &ProcessorBox::maybe_add_processor_to_ui_list));
1623         setup_entry_positions ();
1624 }
1625
1626 /** Add a ProcessorWindowProxy for a processor to our list, if that processor does
1627  *  not already have one.
1628  */
1629 void
1630 ProcessorBox::maybe_add_processor_to_ui_list (boost::weak_ptr<Processor> w)
1631 {
1632         boost::shared_ptr<Processor> p = w.lock ();
1633         if (!p) {
1634                 return;
1635         }
1636         if (p->window_proxy()) {
1637                 return;
1638         }
1639
1640         /* not on the list; add it */
1641
1642         string loc;
1643 #if 0 // is this still needed? Why?
1644         if (_parent_strip) {
1645                 if (_parent_strip->mixer_owned()) {
1646                         loc = X_("M");
1647                 } else {
1648                         loc = X_("R");
1649                 }
1650         } else {
1651                 loc = X_("P");
1652         }
1653 #else
1654         loc = X_("P");
1655 #endif
1656
1657         ProcessorWindowProxy* wp = new ProcessorWindowProxy (
1658                 string_compose ("%1-%2-%3", loc, _route->id(), p->id()),
1659                 this,
1660                 w);
1661
1662         const XMLNode* ui_xml = _session->extra_xml (X_("UI"));
1663
1664         if (ui_xml) {
1665                 wp->set_state (*ui_xml);
1666         }
1667
1668         void* existing_ui = p->get_ui ();
1669
1670         if (existing_ui) {
1671                 wp->use_window (*(reinterpret_cast<Gtk::Window*>(existing_ui)));
1672         }
1673
1674         p->set_window_proxy (wp);
1675         WM::Manager::instance().register_window (wp);
1676 }
1677
1678 void
1679 ProcessorBox::help_count_visible_prefader_processors (boost::weak_ptr<Processor> p, uint32_t* cnt, bool* amp_seen)
1680 {
1681         boost::shared_ptr<Processor> processor (p.lock ());
1682
1683         if (processor && processor->display_to_user()) {
1684
1685                 if (boost::dynamic_pointer_cast<Amp>(processor)) {
1686                         *amp_seen = true;
1687                 } else {
1688                         if (!*amp_seen) {
1689                                 (*cnt)++;
1690                         }
1691                 }
1692         }
1693 }
1694
1695 void
1696 ProcessorBox::add_processor_to_display (boost::weak_ptr<Processor> p)
1697 {
1698         boost::shared_ptr<Processor> processor (p.lock ());
1699
1700         if (!processor || !processor->display_to_user()) {
1701                 return;
1702         }
1703
1704         boost::shared_ptr<PluginInsert> plugin_insert = boost::dynamic_pointer_cast<PluginInsert> (processor);
1705
1706         ProcessorEntry* e = 0;
1707         if (plugin_insert) {
1708                 e = new PluginInsertProcessorEntry (this, plugin_insert, _width);
1709         } else {
1710                 e = new ProcessorEntry (this, processor, _width);
1711         }
1712
1713         boost::shared_ptr<Send> send = boost::dynamic_pointer_cast<Send> (processor);
1714         boost::shared_ptr<PortInsert> ext = boost::dynamic_pointer_cast<PortInsert> (processor);
1715
1716         //faders and meters are not deletable, copy/paste-able, so they shouldn't be selectable
1717         if (!send && !plugin_insert && !ext)
1718                 e->set_selectable(false);
1719
1720         /* Set up this entry's state from the GUIObjectState */
1721         XMLNode* proc = entry_gui_object_state (e);
1722         if (proc) {
1723                 e->set_control_state (proc);
1724         }
1725
1726         if (boost::dynamic_pointer_cast<Send> (processor)) {
1727                 /* Always show send controls */
1728                 e->show_all_controls ();
1729         }
1730
1731         processor_display.add_child (e);
1732 }
1733
1734 void
1735 ProcessorBox::reordered ()
1736 {
1737         compute_processor_sort_keys ();
1738         setup_entry_positions ();
1739 }
1740
1741 void
1742 ProcessorBox::setup_entry_positions ()
1743 {
1744         list<ProcessorEntry*> children = processor_display.children ();
1745         bool pre_fader = true;
1746
1747         uint32_t num = 0;
1748         for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
1749                 if (boost::dynamic_pointer_cast<Amp>((*i)->processor())) {
1750                         pre_fader = false;
1751                         (*i)->set_position (ProcessorEntry::Fader, num++);
1752                 } else {
1753                         if (pre_fader) {
1754                                 (*i)->set_position (ProcessorEntry::PreFader, num++);
1755                         } else {
1756                                 (*i)->set_position (ProcessorEntry::PostFader, num++);
1757                         }
1758                 }
1759         }
1760 }
1761
1762 void
1763 ProcessorBox::compute_processor_sort_keys ()
1764 {
1765         list<ProcessorEntry*> children = processor_display.children ();
1766         Route::ProcessorList our_processors;
1767
1768         for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
1769                 if ((*i)->processor()) {
1770                         our_processors.push_back ((*i)->processor ());
1771                 }
1772         }
1773
1774         if (_route->reorder_processors (our_processors)) {
1775                 /* Reorder failed, so report this to the user.  As far as I can see this must be done
1776                    in an idle handler: it seems that the redisplay_processors() that happens below destroys
1777                    widgets that were involved in the drag-and-drop on the processor list, which causes problems
1778                    when the drag is torn down after this handler function is finished.
1779                 */
1780                 Glib::signal_idle().connect_once (sigc::mem_fun (*this, &ProcessorBox::report_failed_reorder));
1781         }
1782 }
1783
1784 void
1785 ProcessorBox::report_failed_reorder ()
1786 {
1787         /* reorder failed, so redisplay */
1788
1789         redisplay_processors ();
1790
1791         /* now tell them about the problem */
1792
1793         ArdourDialog dialog (_("Plugin Incompatibility"));
1794         Label label;
1795
1796         label.set_text (_("\
1797 You cannot reorder these plugins/sends/inserts\n\
1798 in that way because the inputs and\n\
1799 outputs will not work correctly."));
1800
1801         dialog.get_vbox()->set_border_width (12);
1802         dialog.get_vbox()->pack_start (label);
1803         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1804
1805         dialog.set_name (X_("PluginIODialog"));
1806         dialog.set_modal (true);
1807         dialog.show_all ();
1808
1809         dialog.run ();
1810 }
1811
1812 void
1813 ProcessorBox::rename_processors ()
1814 {
1815         ProcSelection to_be_renamed;
1816
1817         get_selected_processors (to_be_renamed);
1818
1819         if (to_be_renamed.empty()) {
1820                 return;
1821         }
1822
1823         for (ProcSelection::iterator i = to_be_renamed.begin(); i != to_be_renamed.end(); ++i) {
1824                 rename_processor (*i);
1825         }
1826 }
1827
1828 bool
1829 ProcessorBox::can_cut () const
1830 {
1831         vector<boost::shared_ptr<Processor> > sel;
1832
1833         get_selected_processors (sel);
1834
1835         /* cut_processors () does not cut inserts */
1836
1837         for (vector<boost::shared_ptr<Processor> >::const_iterator i = sel.begin (); i != sel.end (); ++i) {
1838
1839                 if (boost::dynamic_pointer_cast<PluginInsert>((*i)) != 0 ||
1840                     (boost::dynamic_pointer_cast<Send>((*i)) != 0) ||
1841                     (boost::dynamic_pointer_cast<Return>((*i)) != 0)) {
1842                         return true;
1843                 }
1844         }
1845
1846         return false;
1847 }
1848
1849 void
1850 ProcessorBox::cut_processors (const ProcSelection& to_be_removed)
1851 {
1852         if (to_be_removed.empty()) {
1853                 return;
1854         }
1855
1856         XMLNode* node = new XMLNode (X_("cut"));
1857         Route::ProcessorList to_cut;
1858
1859         no_processor_redisplay = true;
1860         for (ProcSelection::const_iterator i = to_be_removed.begin(); i != to_be_removed.end(); ++i) {
1861                 // Cut only plugins, sends and returns
1862                 if (boost::dynamic_pointer_cast<PluginInsert>((*i)) != 0 ||
1863                     (boost::dynamic_pointer_cast<Send>((*i)) != 0) ||
1864                     (boost::dynamic_pointer_cast<Return>((*i)) != 0)) {
1865
1866                         Window* w = get_processor_ui (*i);
1867
1868                         if (w) {
1869                                 w->hide ();
1870                         }
1871
1872                         XMLNode& child ((*i)->get_state());
1873                         node->add_child_nocopy (child);
1874                         to_cut.push_back (*i);
1875                 }
1876         }
1877
1878         if (_route->remove_processors (to_cut) != 0) {
1879                 delete node;
1880                 no_processor_redisplay = false;
1881                 return;
1882         }
1883
1884         _rr_selection.set (node);
1885
1886         no_processor_redisplay = false;
1887         redisplay_processors ();
1888 }
1889
1890 void
1891 ProcessorBox::copy_processors (const ProcSelection& to_be_copied)
1892 {
1893         if (to_be_copied.empty()) {
1894                 return;
1895         }
1896
1897         XMLNode* node = new XMLNode (X_("copy"));
1898
1899         for (ProcSelection::const_iterator i = to_be_copied.begin(); i != to_be_copied.end(); ++i) {
1900                 // Copy only plugins, sends, returns
1901                 if (boost::dynamic_pointer_cast<PluginInsert>((*i)) != 0 ||
1902                     (boost::dynamic_pointer_cast<Send>((*i)) != 0) ||
1903                     (boost::dynamic_pointer_cast<Return>((*i)) != 0)) {
1904                         node->add_child_nocopy ((*i)->get_state());
1905                 }
1906         }
1907
1908         _rr_selection.set (node);
1909 }
1910
1911 void
1912 ProcessorBox::delete_processors (const ProcSelection& targets)
1913 {
1914         if (targets.empty()) {
1915                 return;
1916         }
1917
1918         no_processor_redisplay = true;
1919
1920         for (ProcSelection::const_iterator i = targets.begin(); i != targets.end(); ++i) {
1921
1922                 Window* w = get_processor_ui (*i);
1923
1924                 if (w) {
1925                         w->hide ();
1926                 }
1927
1928                 _route->remove_processor(*i);
1929         }
1930
1931         no_processor_redisplay = false;
1932         redisplay_processors ();
1933 }
1934
1935 void
1936 ProcessorBox::delete_dragged_processors (const list<boost::shared_ptr<Processor> >& procs)
1937 {
1938         list<boost::shared_ptr<Processor> >::const_iterator x;
1939
1940         no_processor_redisplay = true;
1941         for (x = procs.begin(); x != procs.end(); ++x) {
1942
1943                 Window* w = get_processor_ui (*x);
1944
1945                 if (w) {
1946                         w->hide ();
1947                 }
1948
1949                 _route->remove_processor(*x);
1950         }
1951
1952         no_processor_redisplay = false;
1953         redisplay_processors ();
1954 }
1955
1956 gint
1957 ProcessorBox::idle_delete_processor (boost::weak_ptr<Processor> weak_processor)
1958 {
1959         boost::shared_ptr<Processor> processor (weak_processor.lock());
1960
1961         if (!processor) {
1962                 return false;
1963         }
1964
1965         /* NOT copied to _mixer.selection() */
1966
1967         no_processor_redisplay = true;
1968         _route->remove_processor (processor);
1969         no_processor_redisplay = false;
1970         redisplay_processors ();
1971
1972         return false;
1973 }
1974
1975 void
1976 ProcessorBox::rename_processor (boost::shared_ptr<Processor> processor)
1977 {
1978         ArdourPrompter name_prompter (true);
1979         string result;
1980         name_prompter.set_title (_("Rename Processor"));
1981         name_prompter.set_prompt (_("New name:"));
1982         name_prompter.set_initial_text (processor->name());
1983         name_prompter.add_button (_("Rename"), Gtk::RESPONSE_ACCEPT);
1984         name_prompter.set_response_sensitive (Gtk::RESPONSE_ACCEPT, false);
1985         name_prompter.show_all ();
1986
1987         switch (name_prompter.run ()) {
1988
1989         case Gtk::RESPONSE_ACCEPT:
1990                 name_prompter.get_result (result);
1991                 if (result.length()) {
1992
1993                        int tries = 0;
1994                        string test = result;
1995
1996                        while (tries < 100) {
1997                                if (_session->io_name_is_legal (test)) {
1998                                        result = test;
1999                                        break;
2000                                }
2001                                tries++;
2002
2003                                test = string_compose ("%1-%2", result, tries);
2004                        }
2005
2006                        if (tries < 100) {
2007                                processor->set_name (result);
2008                        } else {
2009                                /* unlikely! */
2010                                ARDOUR_UI::instance()->popup_error
2011                                        (string_compose (_("At least 100 IO objects exist with a name like %1 - name not changed"), result));
2012                        }
2013                 }
2014                 break;
2015         }
2016
2017         return;
2018 }
2019
2020 void
2021 ProcessorBox::paste_processors ()
2022 {
2023         if (_rr_selection.processors.empty()) {
2024                 return;
2025         }
2026
2027         paste_processor_state (_rr_selection.processors.get_node().children(), boost::shared_ptr<Processor>());
2028 }
2029
2030 void
2031 ProcessorBox::paste_processors (boost::shared_ptr<Processor> before)
2032 {
2033
2034         if (_rr_selection.processors.empty()) {
2035                 return;
2036         }
2037
2038         paste_processor_state (_rr_selection.processors.get_node().children(), before);
2039 }
2040
2041 void
2042 ProcessorBox::paste_processor_state (const XMLNodeList& nlist, boost::shared_ptr<Processor> p)
2043 {
2044         XMLNodeConstIterator niter;
2045         list<boost::shared_ptr<Processor> > copies;
2046
2047         if (nlist.empty()) {
2048                 return;
2049         }
2050
2051         for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
2052
2053                 XMLProperty const * type = (*niter)->property ("type");
2054                 XMLProperty const * role = (*niter)->property ("role");
2055                 assert (type);
2056
2057                 boost::shared_ptr<Processor> p;
2058                 try {
2059                         if (type->value() == "meter" ||
2060                             type->value() == "main-outs" ||
2061                             type->value() == "amp" ||
2062                             type->value() == "intreturn") {
2063                                 /* do not paste meter, main outs, amp or internal returns */
2064                                 continue;
2065
2066                         } else if (type->value() == "intsend") {
2067
2068                                 /* aux sends are OK, but those used for
2069                                  * other purposes, are not.
2070                                  */
2071
2072                                 assert (role);
2073
2074                                 if (role->value() != "Aux") {
2075                                         continue;
2076                                 }
2077
2078                                 boost::shared_ptr<Pannable> sendpan(new Pannable (*_session));
2079                                 XMLNode n (**niter);
2080                                 InternalSend* s = new InternalSend (*_session, sendpan, _route->mute_master(),
2081                                                 _route, boost::shared_ptr<Route>(), Delivery::Aux);
2082
2083                                 IOProcessor::prepare_for_reset (n, s->name());
2084
2085                                 if (s->set_state (n, Stateful::loading_state_version)) {
2086                                         delete s;
2087                                         return;
2088                                 }
2089
2090                                 p.reset (s);
2091
2092                         } else if (type->value() == "send") {
2093
2094                                 boost::shared_ptr<Pannable> sendpan(new Pannable (*_session));
2095                                 XMLNode n (**niter);
2096
2097                                 Send* s = new Send (*_session, _route->pannable(), _route->mute_master());
2098
2099                                 IOProcessor::prepare_for_reset (n, s->name());
2100
2101                                 if (s->set_state (n, Stateful::loading_state_version)) {
2102                                         delete s;
2103                                         return;
2104                                 }
2105
2106                                 p.reset (s);
2107
2108                         } else if (type->value() == "return") {
2109
2110                                 XMLNode n (**niter);
2111                                 Return* r = new Return (*_session);
2112
2113                                 IOProcessor::prepare_for_reset (n, r->name());
2114
2115                                 if (r->set_state (n, Stateful::loading_state_version)) {
2116                                         delete r;
2117                                         return;
2118                                 }
2119
2120                                 p.reset (r);
2121
2122                         } else if (type->value() == "port") {
2123
2124                                 XMLNode n (**niter);
2125                                 PortInsert* pi = new PortInsert (*_session, _route->pannable (), _route->mute_master ());
2126
2127                                 IOProcessor::prepare_for_reset (n, pi->name());
2128
2129                                 if (pi->set_state (n, Stateful::loading_state_version)) {
2130                                         return;
2131                                 }
2132
2133                                 p.reset (pi);
2134
2135                         } else {
2136                                 /* XXX its a bit limiting to assume that everything else
2137                                    is a plugin.
2138                                 */
2139
2140                                 p.reset (new PluginInsert (*_session));
2141                                 p->set_state (**niter, Stateful::current_state_version);
2142                         }
2143
2144                         copies.push_back (p);
2145                 }
2146
2147                 catch (...) {
2148                         error << _("plugin insert constructor failed") << endmsg;
2149                 }
2150         }
2151
2152         if (copies.empty()) {
2153                 return;
2154         }
2155
2156         if (_route->add_processors (copies, p)) {
2157
2158                 string msg = _(
2159                         "Copying the set of processors on the clipboard failed,\n\
2160 probably because the I/O configuration of the plugins\n\
2161 could not match the configuration of this track.");
2162                 MessageDialog am (msg);
2163                 am.run ();
2164         }
2165 }
2166
2167 void
2168 ProcessorBox::get_selected_processors (ProcSelection& processors) const
2169 {
2170         const list<ProcessorEntry*> selection = processor_display.selection ();
2171         for (list<ProcessorEntry*>::const_iterator i = selection.begin(); i != selection.end(); ++i) {
2172                 processors.push_back ((*i)->processor ());
2173         }
2174 }
2175
2176 void
2177 ProcessorBox::for_selected_processors (void (ProcessorBox::*method)(boost::shared_ptr<Processor>))
2178 {
2179         list<ProcessorEntry*> selection = processor_display.selection ();
2180         for (list<ProcessorEntry*>::iterator i = selection.begin(); i != selection.end(); ++i) {
2181                 (this->*method) ((*i)->processor ());
2182         }
2183 }
2184
2185 void
2186 ProcessorBox::all_visible_processors_active (bool state)
2187 {
2188         _route->all_visible_processors_active (state);
2189 }
2190
2191 void
2192 ProcessorBox::ab_plugins ()
2193 {
2194         _route->ab_plugins (ab_direction);
2195         ab_direction = !ab_direction;
2196 }
2197
2198
2199 void
2200 ProcessorBox::clear_processors ()
2201 {
2202         string prompt;
2203         vector<string> choices;
2204
2205         prompt = string_compose (_("Do you really want to remove all processors from %1?\n"
2206                                    "(this cannot be undone)"), _route->name());
2207
2208         choices.push_back (_("Cancel"));
2209         choices.push_back (_("Yes, remove them all"));
2210
2211         Gtkmm2ext::Choice prompter (_("Remove processors"), prompt, choices);
2212
2213         if (prompter.run () == 1) {
2214                 _route->clear_processors (PreFader);
2215                 _route->clear_processors (PostFader);
2216         }
2217 }
2218
2219 void
2220 ProcessorBox::clear_processors (Placement p)
2221 {
2222         string prompt;
2223         vector<string> choices;
2224
2225         if (p == PreFader) {
2226                 prompt = string_compose (_("Do you really want to remove all pre-fader processors from %1?\n"
2227                                            "(this cannot be undone)"), _route->name());
2228         } else {
2229                 prompt = string_compose (_("Do you really want to remove all post-fader processors from %1?\n"
2230                                            "(this cannot be undone)"), _route->name());
2231         }
2232
2233         choices.push_back (_("Cancel"));
2234         choices.push_back (_("Yes, remove them all"));
2235
2236         Gtkmm2ext::Choice prompter (_("Remove processors"), prompt, choices);
2237
2238         if (prompter.run () == 1) {
2239                 _route->clear_processors (p);
2240         }
2241 }
2242
2243 bool
2244 ProcessorBox::processor_can_be_edited (boost::shared_ptr<Processor> processor)
2245 {
2246         boost::shared_ptr<AudioTrack> at = boost::dynamic_pointer_cast<AudioTrack> (_route);
2247         if (at && at->freeze_state() == AudioTrack::Frozen) {
2248                 return false;
2249         }
2250
2251         if (
2252                 boost::dynamic_pointer_cast<Send> (processor) ||
2253                 boost::dynamic_pointer_cast<Return> (processor) ||
2254                 boost::dynamic_pointer_cast<PluginInsert> (processor) ||
2255                 boost::dynamic_pointer_cast<PortInsert> (processor)
2256                 ) {
2257                 return true;
2258         }
2259
2260         return false;
2261 }
2262
2263 bool
2264 ProcessorBox::one_processor_can_be_edited ()
2265 {
2266         list<ProcessorEntry*> selection = processor_display.selection ();
2267         list<ProcessorEntry*>::iterator i = selection.begin();
2268         while (i != selection.end() && processor_can_be_edited ((*i)->processor()) == false) {
2269                 ++i;
2270         }
2271
2272         return (i != selection.end());
2273 }
2274
2275 Gtk::Window*
2276 ProcessorBox::get_editor_window (boost::shared_ptr<Processor> processor, bool use_custom)
2277 {
2278         boost::shared_ptr<Send> send;
2279         boost::shared_ptr<InternalSend> internal_send;
2280         boost::shared_ptr<Return> retrn;
2281         boost::shared_ptr<PluginInsert> plugin_insert;
2282         boost::shared_ptr<PortInsert> port_insert;
2283         Window* gidget = 0;
2284
2285         /* This method may or may not return a Window, but if it does not it
2286          * will modify the parent mixer strip appearance layout to allow
2287          * "editing" the @param processor that was passed in.
2288          *
2289          * So for example, if the processor is an Amp (gain), the parent strip
2290          * will be forced back into a model where the fader controls the main gain.
2291          * If the processor is a send, then we map the send controls onto the
2292          * strip.
2293          *
2294          * Plugins and others will return a window for control.
2295          */
2296
2297         if (boost::dynamic_pointer_cast<AudioTrack>(_route) != 0) {
2298
2299                 if (boost::dynamic_pointer_cast<AudioTrack> (_route)->freeze_state() == AudioTrack::Frozen) {
2300                         return 0;
2301                 }
2302         }
2303
2304         if (boost::dynamic_pointer_cast<Amp> (processor)) {
2305
2306                 if (_parent_strip) {
2307                         _parent_strip->revert_to_default_display ();
2308                 }
2309
2310         } else if ((send = boost::dynamic_pointer_cast<Send> (processor)) != 0) {
2311
2312                 if (!_session->engine().connected()) {
2313                         return 0;
2314                 }
2315
2316                 if (boost::dynamic_pointer_cast<InternalSend> (processor) == 0) {
2317
2318                         gidget = new SendUIWindow (send, _session);
2319                 }
2320
2321         } else if ((retrn = boost::dynamic_pointer_cast<Return> (processor)) != 0) {
2322
2323                 if (boost::dynamic_pointer_cast<InternalReturn> (retrn)) {
2324                         /* no GUI for these */
2325                         return 0;
2326                 }
2327
2328                 if (!_session->engine().connected()) {
2329                         return 0;
2330                 }
2331
2332                 boost::shared_ptr<Return> retrn = boost::dynamic_pointer_cast<Return> (processor);
2333
2334                 ReturnUIWindow *return_ui;
2335                 Window* w = get_processor_ui (retrn);
2336
2337                 if (w == 0) {
2338
2339                         return_ui = new ReturnUIWindow (retrn, _session);
2340                         return_ui->set_title (retrn->name ());
2341                         set_processor_ui (send, return_ui);
2342
2343                 } else {
2344                         return_ui = dynamic_cast<ReturnUIWindow *> (w);
2345                 }
2346
2347                 gidget = return_ui;
2348
2349         } else if ((plugin_insert = boost::dynamic_pointer_cast<PluginInsert> (processor)) != 0) {
2350
2351                 PluginUIWindow *plugin_ui;
2352
2353                 /* these are both allowed to be null */
2354
2355                 Window* w = get_processor_ui (plugin_insert);
2356
2357                 if (w == 0) {
2358                         plugin_ui = new PluginUIWindow (plugin_insert, false, use_custom);
2359                         plugin_ui->set_title (generate_processor_title (plugin_insert));
2360                         set_processor_ui (plugin_insert, plugin_ui);
2361
2362                 } else {
2363                         plugin_ui = dynamic_cast<PluginUIWindow *> (w);
2364                 }
2365
2366                 gidget = plugin_ui;
2367
2368         } else if ((port_insert = boost::dynamic_pointer_cast<PortInsert> (processor)) != 0) {
2369
2370                 if (!_session->engine().connected()) {
2371                         MessageDialog msg ( _("Not connected to audio engine - no I/O changes are possible"));
2372                         msg.run ();
2373                         return 0;
2374                 }
2375
2376                 PortInsertWindow *io_selector;
2377
2378                 Window* w = get_processor_ui (port_insert);
2379
2380                 if (w == 0) {
2381                         io_selector = new PortInsertWindow (_session, port_insert);
2382                         set_processor_ui (port_insert, io_selector);
2383
2384                 } else {
2385                         io_selector = dynamic_cast<PortInsertWindow *> (w);
2386                 }
2387
2388                 gidget = io_selector;
2389         }
2390
2391         return gidget;
2392 }
2393
2394 Gtk::Window*
2395 ProcessorBox::get_generic_editor_window (boost::shared_ptr<Processor> processor)
2396 {
2397         boost::shared_ptr<PluginInsert> plugin_insert
2398                 = boost::dynamic_pointer_cast<PluginInsert>(processor);
2399
2400         if (!plugin_insert) {
2401                 return 0;
2402         }
2403
2404         PluginUIWindow* win = new PluginUIWindow (plugin_insert, true, false);
2405         win->set_title (generate_processor_title (plugin_insert));
2406
2407         return win;
2408 }
2409
2410 void
2411 ProcessorBox::register_actions ()
2412 {
2413         Glib::RefPtr<Gtk::ActionGroup> popup_act_grp = Gtk::ActionGroup::create(X_("ProcessorMenu"));
2414         Glib::RefPtr<Action> act;
2415
2416         /* new stuff */
2417         ActionManager::register_action (popup_act_grp, X_("newplugin"), _("New Plugin"),
2418                         sigc::ptr_fun (ProcessorBox::rb_choose_plugin));
2419
2420         act = ActionManager::register_action (popup_act_grp, X_("newinsert"), _("New Insert"),
2421                         sigc::ptr_fun (ProcessorBox::rb_choose_insert));
2422         ActionManager::engine_sensitive_actions.push_back (act);
2423         act = ActionManager::register_action (popup_act_grp, X_("newsend"), _("New External Send ..."),
2424                         sigc::ptr_fun (ProcessorBox::rb_choose_send));
2425         ActionManager::engine_sensitive_actions.push_back (act);
2426
2427         ActionManager::register_action (popup_act_grp, X_("newaux"), _("New Aux Send ..."));
2428
2429         ActionManager::register_action (popup_act_grp, X_("controls"), _("Controls"));
2430         ActionManager::register_action (popup_act_grp, X_("send_options"), _("Send Options"));
2431
2432         ActionManager::register_action (popup_act_grp, X_("clear"), _("Clear (all)"),
2433                         sigc::ptr_fun (ProcessorBox::rb_clear));
2434         ActionManager::register_action (popup_act_grp, X_("clear_pre"), _("Clear (pre-fader)"),
2435                         sigc::ptr_fun (ProcessorBox::rb_clear_pre));
2436         ActionManager::register_action (popup_act_grp, X_("clear_post"), _("Clear (post-fader)"),
2437                         sigc::ptr_fun (ProcessorBox::rb_clear_post));
2438
2439         /* standard editing stuff */
2440         cut_action = ActionManager::register_action (popup_act_grp, X_("cut"), _("Cut"),
2441                                                      sigc::ptr_fun (ProcessorBox::rb_cut));
2442         ActionManager::plugin_selection_sensitive_actions.push_back(cut_action);
2443         act = ActionManager::register_action (popup_act_grp, X_("copy"), _("Copy"),
2444                         sigc::ptr_fun (ProcessorBox::rb_copy));
2445         ActionManager::plugin_selection_sensitive_actions.push_back(act);
2446
2447         act = ActionManager::register_action (popup_act_grp, X_("delete"), _("Delete"),
2448                         sigc::ptr_fun (ProcessorBox::rb_delete));
2449         ActionManager::plugin_selection_sensitive_actions.push_back(act); // ??
2450
2451         paste_action = ActionManager::register_action (popup_act_grp, X_("paste"), _("Paste"),
2452                         sigc::ptr_fun (ProcessorBox::rb_paste));
2453         rename_action = ActionManager::register_action (popup_act_grp, X_("rename"), _("Rename"),
2454                         sigc::ptr_fun (ProcessorBox::rb_rename));
2455         ActionManager::register_action (popup_act_grp, X_("selectall"), _("Select All"),
2456                         sigc::ptr_fun (ProcessorBox::rb_select_all));
2457         ActionManager::register_action (popup_act_grp, X_("deselectall"), _("Deselect All"),
2458                         sigc::ptr_fun (ProcessorBox::rb_deselect_all));
2459
2460         /* activation etc. */
2461
2462         ActionManager::register_action (popup_act_grp, X_("activate_all"), _("Activate All"),
2463                         sigc::ptr_fun (ProcessorBox::rb_activate_all));
2464         ActionManager::register_action (popup_act_grp, X_("deactivate_all"), _("Deactivate All"),
2465                         sigc::ptr_fun (ProcessorBox::rb_deactivate_all));
2466         ActionManager::register_action (popup_act_grp, X_("ab_plugins"), _("A/B Plugins"),
2467                         sigc::ptr_fun (ProcessorBox::rb_ab_plugins));
2468
2469         /* show editors */
2470         edit_action = ActionManager::register_action (
2471                 popup_act_grp, X_("edit"), _("Edit..."),
2472                 sigc::ptr_fun (ProcessorBox::rb_edit));
2473
2474         edit_generic_action = ActionManager::register_action (
2475                 popup_act_grp, X_("edit-generic"), _("Edit with generic controls..."),
2476                 sigc::ptr_fun (ProcessorBox::rb_edit_generic));
2477
2478         ActionManager::add_action_group (popup_act_grp);
2479 }
2480
2481 void
2482 ProcessorBox::rb_edit_generic ()
2483 {
2484         if (_current_processor_box == 0) {
2485                 return;
2486         }
2487
2488         _current_processor_box->for_selected_processors (&ProcessorBox::generic_edit_processor);
2489 }
2490
2491 void
2492 ProcessorBox::rb_ab_plugins ()
2493 {
2494         if (_current_processor_box == 0) {
2495                 return;
2496         }
2497
2498         _current_processor_box->ab_plugins ();
2499 }
2500
2501 void
2502 ProcessorBox::rb_choose_plugin ()
2503 {
2504         if (_current_processor_box == 0) {
2505                 return;
2506         }
2507         _current_processor_box->choose_plugin ();
2508 }
2509
2510 void
2511 ProcessorBox::rb_choose_insert ()
2512 {
2513         if (_current_processor_box == 0) {
2514                 return;
2515         }
2516         _current_processor_box->choose_insert ();
2517 }
2518
2519 void
2520 ProcessorBox::rb_choose_send ()
2521 {
2522         if (_current_processor_box == 0) {
2523                 return;
2524         }
2525         _current_processor_box->choose_send ();
2526 }
2527
2528 void
2529 ProcessorBox::rb_choose_aux (boost::weak_ptr<Route> wr)
2530 {
2531         if (_current_processor_box == 0) {
2532                 return;
2533         }
2534
2535         _current_processor_box->choose_aux (wr);
2536 }
2537
2538 void
2539 ProcessorBox::rb_clear ()
2540 {
2541         if (_current_processor_box == 0) {
2542                 return;
2543         }
2544
2545         _current_processor_box->clear_processors ();
2546 }
2547
2548
2549 void
2550 ProcessorBox::rb_clear_pre ()
2551 {
2552         if (_current_processor_box == 0) {
2553                 return;
2554         }
2555
2556         _current_processor_box->clear_processors (PreFader);
2557 }
2558
2559
2560 void
2561 ProcessorBox::rb_clear_post ()
2562 {
2563         if (_current_processor_box == 0) {
2564                 return;
2565         }
2566
2567         _current_processor_box->clear_processors (PostFader);
2568 }
2569
2570 void
2571 ProcessorBox::rb_cut ()
2572 {
2573         if (_current_processor_box == 0) {
2574                 return;
2575         }
2576
2577         _current_processor_box->processor_operation (ProcessorsCut);
2578 }
2579
2580 void
2581 ProcessorBox::rb_delete ()
2582 {
2583         if (_current_processor_box == 0) {
2584                 return;
2585         }
2586
2587         _current_processor_box->processor_operation (ProcessorsDelete);
2588 }
2589
2590 void
2591 ProcessorBox::rb_copy ()
2592 {
2593         if (_current_processor_box == 0) {
2594                 return;
2595         }
2596         _current_processor_box->processor_operation (ProcessorsCopy);
2597 }
2598
2599 void
2600 ProcessorBox::rb_paste ()
2601 {
2602         if (_current_processor_box == 0) {
2603                 return;
2604         }
2605
2606         _current_processor_box->processor_operation (ProcessorsPaste);
2607 }
2608
2609 void
2610 ProcessorBox::rb_rename ()
2611 {
2612         if (_current_processor_box == 0) {
2613                 return;
2614         }
2615         _current_processor_box->rename_processors ();
2616 }
2617
2618 void
2619 ProcessorBox::rb_select_all ()
2620 {
2621         if (_current_processor_box == 0) {
2622                 return;
2623         }
2624
2625         _current_processor_box->processor_operation (ProcessorsSelectAll);
2626 }
2627
2628 void
2629 ProcessorBox::rb_deselect_all ()
2630 {
2631         if (_current_processor_box == 0) {
2632                 return;
2633         }
2634
2635         _current_processor_box->deselect_all_processors ();
2636 }
2637
2638 void
2639 ProcessorBox::rb_activate_all ()
2640 {
2641         if (_current_processor_box == 0) {
2642                 return;
2643         }
2644
2645         _current_processor_box->all_visible_processors_active (true);
2646 }
2647
2648 void
2649 ProcessorBox::rb_deactivate_all ()
2650 {
2651         if (_current_processor_box == 0) {
2652                 return;
2653         }
2654         _current_processor_box->all_visible_processors_active (false);
2655 }
2656
2657 void
2658 ProcessorBox::rb_edit ()
2659 {
2660         if (_current_processor_box == 0) {
2661                 return;
2662         }
2663
2664         _current_processor_box->for_selected_processors (&ProcessorBox::edit_processor);
2665 }
2666
2667 bool
2668 ProcessorBox::edit_aux_send (boost::shared_ptr<Processor> processor)
2669 {
2670         if (boost::dynamic_pointer_cast<InternalSend> (processor) == 0) {
2671                 return false;
2672         }
2673
2674         if (_parent_strip) {
2675                 boost::shared_ptr<Send> send = boost::dynamic_pointer_cast<Send> (processor);
2676                 if (_parent_strip->current_delivery() == send) {
2677                         _parent_strip->revert_to_default_display ();
2678                 } else {
2679                         _parent_strip->show_send(send);
2680                 }
2681         }
2682         return true;
2683 }
2684
2685 void
2686 ProcessorBox::edit_processor (boost::shared_ptr<Processor> processor)
2687 {
2688         if (!processor) {
2689                 return;
2690         }
2691         if (edit_aux_send (processor)) {
2692                 return;
2693         }
2694
2695         ProcessorWindowProxy* proxy = find_window_proxy (processor);
2696
2697         if (proxy) {
2698                 proxy->set_custom_ui_mode (true);
2699                 proxy->toggle ();
2700         }
2701 }
2702
2703 void
2704 ProcessorBox::generic_edit_processor (boost::shared_ptr<Processor> processor)
2705 {
2706         if (!processor) {
2707                 return;
2708         }
2709         if (edit_aux_send (processor)) {
2710                 return;
2711         }
2712
2713         ProcessorWindowProxy* proxy = find_window_proxy (processor);
2714
2715         if (proxy) {
2716                 proxy->set_custom_ui_mode (false);
2717                 proxy->toggle ();
2718         }
2719 }
2720
2721 void
2722 ProcessorBox::route_property_changed (const PropertyChange& what_changed)
2723 {
2724         if (!what_changed.contains (ARDOUR::Properties::name)) {
2725                 return;
2726         }
2727
2728         ENSURE_GUI_THREAD (*this, &ProcessorBox::route_property_changed, what_changed);
2729
2730         boost::shared_ptr<Processor> processor;
2731         boost::shared_ptr<PluginInsert> plugin_insert;
2732         boost::shared_ptr<Send> send;
2733
2734         list<ProcessorEntry*> children = processor_display.children();
2735
2736         for (list<ProcessorEntry*>::iterator iter = children.begin(); iter != children.end(); ++iter) {
2737
2738                 processor = (*iter)->processor ();
2739
2740                 if (!processor) {
2741                         continue;
2742                 }
2743
2744                 Window* w = get_processor_ui (processor);
2745
2746                 if (!w) {
2747                         continue;
2748                 }
2749
2750                 /* rename editor windows for sends and plugins */
2751
2752                 if ((send = boost::dynamic_pointer_cast<Send> (processor)) != 0) {
2753                         w->set_title (send->name ());
2754                 } else if ((plugin_insert = boost::dynamic_pointer_cast<PluginInsert> (processor)) != 0) {
2755                         w->set_title (generate_processor_title (plugin_insert));
2756                 }
2757         }
2758 }
2759
2760 string
2761 ProcessorBox::generate_processor_title (boost::shared_ptr<PluginInsert> pi)
2762 {
2763         string maker = pi->plugin()->maker() ? pi->plugin()->maker() : "";
2764         string::size_type email_pos;
2765
2766         if ((email_pos = maker.find_first_of ('<')) != string::npos) {
2767                 maker = maker.substr (0, email_pos - 1);
2768         }
2769
2770         if (maker.length() > 32) {
2771                 maker = maker.substr (0, 32);
2772                 maker += " ...";
2773         }
2774
2775         SessionObject* owner = pi->owner();
2776
2777         if (owner) {
2778                 return string_compose(_("%1: %2 (by %3)"), owner->name(), pi->name(), maker);
2779         } else {
2780                 return string_compose(_("%1 (by %2)"), pi->name(), maker);
2781         }
2782 }
2783
2784 /** @param p Processor.
2785  *  @return the UI window for \a p.
2786  */
2787 Window *
2788 ProcessorBox::get_processor_ui (boost::shared_ptr<Processor> p) const
2789 {
2790         ProcessorWindowProxy* wp = p->window_proxy();
2791         if (wp) {
2792                 return wp->get ();
2793         }
2794         return 0;
2795 }
2796
2797 /** Make a note of the UI window that a processor is using.
2798  *  @param p Processor.
2799  *  @param w UI window.
2800  */
2801 void
2802 ProcessorBox::set_processor_ui (boost::shared_ptr<Processor> p, Gtk::Window* w)
2803 {
2804         assert (p->window_proxy());
2805         p->set_ui (w);
2806         p->window_proxy()->use_window (*w);
2807 }
2808
2809 void
2810 ProcessorBox::mixer_strip_delivery_changed (boost::weak_ptr<Delivery> w)
2811 {
2812         boost::shared_ptr<Delivery> d = w.lock ();
2813         if (!d) {
2814                 return;
2815         }
2816
2817         list<ProcessorEntry*> children = processor_display.children ();
2818         list<ProcessorEntry*>::const_iterator i = children.begin();
2819         while (i != children.end() && (*i)->processor() != d) {
2820                 ++i;
2821         }
2822
2823         if (i == children.end()) {
2824                 processor_display.set_active (0);
2825         } else {
2826                 processor_display.set_active (*i);
2827         }
2828 }
2829
2830 /** Called to repair the damage of Editor::show_window doing a show_all() */
2831 void
2832 ProcessorBox::hide_things ()
2833 {
2834         list<ProcessorEntry*> c = processor_display.children ();
2835         for (list<ProcessorEntry*>::iterator i = c.begin(); i != c.end(); ++i) {
2836                 (*i)->hide_things ();
2837         }
2838 }
2839
2840 void
2841 ProcessorBox::processor_menu_unmapped ()
2842 {
2843         processor_display.remove_placeholder ();
2844 }
2845
2846 XMLNode *
2847 ProcessorBox::entry_gui_object_state (ProcessorEntry* entry)
2848 {
2849         if (!_parent_strip) {
2850                 return 0;
2851         }
2852
2853         GUIObjectState& st = _parent_strip->gui_object_state ();
2854
2855         XMLNode* strip = st.get_or_add_node (_parent_strip->state_id ());
2856         assert (strip);
2857         return st.get_or_add_node (strip, entry->state_id());
2858 }
2859
2860 void
2861 ProcessorBox::update_gui_object_state (ProcessorEntry* entry)
2862 {
2863         XMLNode* proc = entry_gui_object_state (entry);
2864         if (!proc) {
2865                 return;
2866         }
2867
2868         /* XXX: this is a bit inefficient; we just remove all child nodes and re-add them */
2869         proc->remove_nodes_and_delete (X_("Object"));
2870         entry->add_control_state (proc);
2871 }
2872
2873 bool
2874 ProcessorBox::is_editor_mixer_strip() const
2875 {
2876         return _parent_strip && !_parent_strip->mixer_owned();
2877 }
2878
2879 ProcessorWindowProxy::ProcessorWindowProxy (string const & name, ProcessorBox* box, boost::weak_ptr<Processor> processor)
2880         : WM::ProxyBase (name, string())
2881         , _processor_box (box)
2882         , _processor (processor)
2883         , is_custom (false)
2884         , want_custom (false)
2885 {
2886         boost::shared_ptr<Processor> p = _processor.lock ();
2887         if (!p) {
2888                 return;
2889         }
2890         p->DropReferences.connect (going_away_connection, MISSING_INVALIDATOR, boost::bind (&ProcessorWindowProxy::processor_going_away, this), gui_context());
2891 }
2892
2893 ProcessorWindowProxy::~ProcessorWindowProxy()
2894 {
2895         /* processor window proxies do not own the windows they create with
2896          * ::get(), so set _window to null before the normal WindowProxy method
2897          * deletes it.
2898          */
2899         _window = 0;
2900 }
2901
2902 void
2903 ProcessorWindowProxy::processor_going_away ()
2904 {
2905         delete _window;
2906         _window = 0;
2907         WM::Manager::instance().remove (this);
2908         /* should be no real reason to do this, since the object that would
2909            send DropReferences is about to be deleted, but lets do it anyway.
2910         */
2911         going_away_connection.disconnect();
2912 }
2913
2914 ARDOUR::SessionHandlePtr*
2915 ProcessorWindowProxy::session_handle()
2916 {
2917         /* we don't care */
2918         return 0;
2919 }
2920
2921 XMLNode&
2922 ProcessorWindowProxy::get_state () const
2923 {
2924         XMLNode *node;
2925         node = &ProxyBase::get_state();
2926         node->add_property (X_("custom-ui"), is_custom? X_("yes") : X_("no"));
2927         return *node;
2928 }
2929
2930 void
2931 ProcessorWindowProxy::set_state (const XMLNode& node)
2932 {
2933         XMLNodeList children = node.children ();
2934         XMLNodeList::const_iterator i = children.begin ();
2935         while (i != children.end()) {
2936                 XMLProperty* prop = (*i)->property (X_("name"));
2937                 if ((*i)->name() == X_("Window") && prop && prop->value() == _name) {
2938                         break;
2939                 }
2940                 ++i;
2941         }
2942
2943         if (i != children.end()) {
2944                 XMLProperty* prop;
2945                 if ((prop = (*i)->property (X_("custom-ui"))) != 0) {
2946                         want_custom = PBD::string_is_affirmative (prop->value ());
2947                 }
2948         }
2949
2950         ProxyBase::set_state(node);
2951 }
2952
2953 Gtk::Window*
2954 ProcessorWindowProxy::get (bool create)
2955 {
2956         boost::shared_ptr<Processor> p = _processor.lock ();
2957
2958         if (!p) {
2959                 return 0;
2960         }
2961         if (_window && (is_custom != want_custom)) {
2962                 /* drop existing window - wrong type */
2963                 drop_window ();
2964         }
2965
2966         if (!_window) {
2967                 if (!create) {
2968                         return 0;
2969                 }
2970
2971                 is_custom = want_custom;
2972                 _window = _processor_box->get_editor_window (p, is_custom);
2973
2974                 if (_window) {
2975                         setup ();
2976                 }
2977         }
2978
2979         return _window;
2980 }
2981
2982 void
2983 ProcessorWindowProxy::toggle ()
2984 {
2985         if (_window && (is_custom != want_custom)) {
2986                 /* drop existing window - wrong type */
2987                 drop_window ();
2988         }
2989         is_custom = want_custom;
2990
2991         WM::ProxyBase::toggle ();
2992 }