gtk2_ardour/processor_box.cc

   1 /*
   2     Copyright (C) 2000-2004 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <cmath>
  25 #include <iostream>
  26 #include <set>
  27
  28 #include <sigc++/bind.h>
  29
  30 #include "pbd/convert.h"
  31 #include "canvas/utils.h"
  32
  33 #include <glibmm/miscutils.h>
  34 #include <glibmm/fileutils.h>
  35
  36 #include <gtkmm/messagedialog.h>
  37
  38 #include <gtkmm2ext/gtk_ui.h>
  39 #include <gtkmm2ext/utils.h>
  40 #include <gtkmm2ext/choice.h>
  41 #include <gtkmm2ext/utils.h>
  42 #include <gtkmm2ext/doi.h>
  43 #include <gtkmm2ext/rgb_macros.h>
  44
  45 #include "ardour/amp.h"
  46 #include "ardour/audio_track.h"
  47 #include "ardour/audioengine.h"
  48 #include "ardour/internal_return.h"
  49 #include "ardour/internal_send.h"
  50 #include "ardour/luaproc.h"
  51 #include "ardour/luascripting.h"
  52 #include "ardour/meter.h"
  53 #include "ardour/panner_shell.h"
  54 #include "ardour/plugin_insert.h"
  55 #include "ardour/pannable.h"
  56 #include "ardour/port_insert.h"
  57 #include "ardour/profile.h"
  58 #include "ardour/return.h"
  59 #include "ardour/route.h"
  60 #include "ardour/send.h"
  61 #include "ardour/session.h"
  62 #include "ardour/types.h"
  63
  64 #include "LuaBridge/LuaBridge.h"
  65
  66 #include "actions.h"
  67 #include "ardour_dialog.h"
  68 #include "ardour_ui.h"
  69 #include "gui_thread.h"
  70 #include "io_selector.h"
  71 #include "keyboard.h"
  72 #include "luainstance.h"
  73 #include "mixer_ui.h"
  74 #include "mixer_strip.h"
  75 #include "plugin_pin_dialog.h"
  76 #include "plugin_selector.h"
  77 #include "plugin_ui.h"
  78 #include "port_insert_ui.h"
  79 #include "processor_box.h"
  80 #include "public_editor.h"
  81 #include "return_ui.h"
  82 #include "route_processor_selection.h"
  83 #include "script_selector.h"
  84 #include "send_ui.h"
  85 #include "timers.h"
  86 #include "tooltips.h"
  87 #include "new_plugin_preset_dialog.h"
  88
  89 #include "i18n.h"
  90
  91 #ifdef AUDIOUNIT_SUPPORT
  92 class AUPluginUI;
  93 #endif
  94
  95 #ifndef NDEBUG
  96 bool ProcessorBox::show_all_processors = false;
  97 #endif
  98
  99 using namespace std;
 100 using namespace ARDOUR;
 101 using namespace PBD;
 102 using namespace Gtk;
 103 using namespace Glib;
 104 using namespace Gtkmm2ext;
 105
 106 ProcessorBox*  ProcessorBox::_current_processor_box = 0;
 107 RefPtr<Action> ProcessorBox::paste_action;
 108 RefPtr<Action> ProcessorBox::cut_action;
 109 RefPtr<Action> ProcessorBox::copy_action;
 110 RefPtr<Action> ProcessorBox::rename_action;
 111 RefPtr<Action> ProcessorBox::delete_action;
 112 RefPtr<Action> ProcessorBox::manage_pins_action;
 113 RefPtr<Action> ProcessorBox::edit_action;
 114 RefPtr<Action> ProcessorBox::edit_generic_action;
 115 RefPtr<ActionGroup> ProcessorBox::processor_box_actions;
 116 Gtkmm2ext::ActionMap ProcessorBox::myactions (X_("processor box"));
 117 Gtkmm2ext::Bindings* ProcessorBox::bindings = 0;
 118
 119
 120 // TODO consolidate with PluginPinDialog::set_color
 121 static void set_routing_color (cairo_t* cr, bool midi)
 122 {
 123         static const uint32_t audio_port_color = 0x4A8A0EFF; // Green
 124         static const uint32_t midi_port_color = 0x960909FF; //Red
 125
 126         if (midi) {
 127                 cairo_set_source_rgb (cr,
 128                                 UINT_RGBA_R_FLT(midi_port_color),
 129                                 UINT_RGBA_G_FLT(midi_port_color),
 130                                 UINT_RGBA_B_FLT(midi_port_color));
 131         } else {
 132                 cairo_set_source_rgb (cr,
 133                                 UINT_RGBA_R_FLT(audio_port_color),
 134                                 UINT_RGBA_G_FLT(audio_port_color),
 135                                 UINT_RGBA_B_FLT(audio_port_color));
 136         }
 137 }
 138
 139 ProcessorEntry::ProcessorEntry (ProcessorBox* parent, boost::shared_ptr<Processor> p, Width w)
 140         : _button (ArdourButton::led_default_elements)
 141         , _position (PreFader)
 142         , _position_num(0)
 143         , _parent (parent)
 144         , _selectable(true)
 145         , _unknown_processor(false)
 146         , _processor (p)
 147         , _width (w)
 148         , input_icon(true)
 149         , output_icon(false)
 150         , routing_icon(true)
 151         , output_routing_icon(false)
 152         , _plugin_display(0)
 153 {
 154         _vbox.show ();
 155
 156         _button.set_distinct_led_click (true);
 157         _button.set_fallthrough_to_parent(true);
 158         _button.set_led_left (true);
 159         _button.signal_led_clicked.connect (sigc::mem_fun (*this, &ProcessorEntry::led_clicked));
 160         _button.set_text (name (_width));
 161
 162         if (boost::dynamic_pointer_cast<PeakMeter> (_processor)) {
 163                 _button.set_elements(ArdourButton::Element(_button.elements() & ~ArdourButton::Indicator));
 164         }
 165         if (boost::dynamic_pointer_cast<UnknownProcessor> (_processor)) {
 166                 _button.set_elements(ArdourButton::Element(_button.elements() & ~ArdourButton::Indicator));
 167                 _unknown_processor = true;
 168         }
 169         {
 170                 boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (_processor);
 171                 if (pi && pi->plugin() && pi->plugin()->get_info()->type != ARDOUR::Lua) {
 172                         _plugin_preset_pointer = PluginPresetPtr (new PluginPreset (pi->plugin()->get_info()));
 173                 }
 174         }
 175         if (_processor) {
 176
 177                 _vbox.pack_start (routing_icon);
 178                 _vbox.pack_start (input_icon);
 179                 _vbox.pack_start (_button, true, true);
 180
 181                 boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (_processor);
 182                 if (pi && pi->plugin() && pi->plugin()->has_inline_display()) {
 183                         if (pi->plugin()->get_info()->type != ARDOUR::Lua) {
 184                                 _plugin_display = new PluginDisplay (pi->plugin(),
 185                                                 std::max (60.f, rintf(112.f * UIConfiguration::instance().get_ui_scale())));
 186                         } else {
 187                                 assert (boost::dynamic_pointer_cast<LuaProc>(pi->plugin()));
 188                                 _plugin_display = new LuaPluginDisplay (boost::dynamic_pointer_cast<LuaProc>(pi->plugin()),
 189                                                 std::max (60.f, rintf(112.f * UIConfiguration::instance().get_ui_scale())));
 190                         }
 191                         _vbox.pack_start (*_plugin_display);
 192                         _plugin_display->set_no_show_all (true);
 193                         if (UIConfiguration::instance().get_show_inline_display_by_default ()) {
 194                                 _plugin_display->show ();
 195                         }
 196                 }
 197                 _vbox.pack_end (output_routing_icon);
 198                 _vbox.pack_end (output_icon);
 199
 200                 _button.set_active (_processor->active());
 201
 202                 input_icon.set_no_show_all(true);
 203                 routing_icon.set_no_show_all(true);
 204                 output_icon.set_no_show_all(true);
 205                 output_routing_icon.set_no_show_all(true);
 206
 207                 _button.show ();
 208                 input_icon.hide();
 209                 output_icon.show();
 210                 routing_icon.hide();
 211                 output_routing_icon.hide();
 212
 213                 _processor->ActiveChanged.connect (active_connection, invalidator (*this), boost::bind (&ProcessorEntry::processor_active_changed, this), gui_context());
 214                 _processor->PropertyChanged.connect (name_connection, invalidator (*this), boost::bind (&ProcessorEntry::processor_property_changed, this, _1), gui_context());
 215                 _processor->ConfigurationChanged.connect (config_connection, invalidator (*this), boost::bind (&ProcessorEntry::processor_configuration_changed, this, _1, _2), gui_context());
 216
 217                 set<Evoral::Parameter> p = _processor->what_can_be_automated ();
 218                 for (set<Evoral::Parameter>::iterator i = p.begin(); i != p.end(); ++i) {
 219
 220                         std::string label = _processor->describe_parameter (*i);
 221
 222                         if (boost::dynamic_pointer_cast<Send> (_processor)) {
 223                                 label = _("Send");
 224                         } else if (boost::dynamic_pointer_cast<Return> (_processor)) {
 225                                 label = _("Return");
 226                         }
 227
 228                         Control* c = new Control (_processor->automation_control (*i), label);
 229
 230                         _controls.push_back (c);
 231
 232                         if (boost::dynamic_pointer_cast<Amp> (_processor) == 0) {
 233                                 /* Add non-Amp (Fader & Trim) controls to the processor box */
 234                                 _vbox.pack_start (c->box);
 235                         }
 236                 }
 237
 238                 setup_tooltip ();
 239                 setup_visuals ();
 240         } else {
 241                 _vbox.set_size_request (-1, _button.size_request().height);
 242         }
 243 }
 244
 245 ProcessorEntry::~ProcessorEntry ()
 246 {
 247         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
 248                 delete *i;
 249         }
 250         delete _plugin_display;
 251 }
 252
 253 EventBox&
 254 ProcessorEntry::action_widget ()
 255 {
 256         return _button;
 257 }
 258
 259 Gtk::Widget&
 260 ProcessorEntry::widget ()
 261 {
 262         return _vbox;
 263 }
 264
 265 string
 266 ProcessorEntry::drag_text () const
 267 {
 268         return name (Wide);
 269 }
 270
 271 bool
 272 ProcessorEntry::can_copy_state (Gtkmm2ext::DnDVBoxChild* o) const
 273 {
 274         ProcessorEntry *other = dynamic_cast<ProcessorEntry*> (o);
 275         if (!other) {
 276                 return false;
 277         }
 278         boost::shared_ptr<ARDOUR::Processor> otherproc = other->processor();
 279         boost::shared_ptr<PluginInsert> my_pi = boost::dynamic_pointer_cast<PluginInsert> (_processor);
 280         boost::shared_ptr<PluginInsert> ot_pi = boost::dynamic_pointer_cast<PluginInsert> (otherproc);
 281         if (boost::dynamic_pointer_cast<UnknownProcessor> (_processor)) {
 282                 return false;
 283         }
 284         if (boost::dynamic_pointer_cast<UnknownProcessor> (otherproc)) {
 285                 return false;
 286         }
 287         if (!my_pi || !ot_pi) {
 288                 return false;
 289         }
 290         if (my_pi->type() != ot_pi->type()) {
 291                 return false;
 292         }
 293         boost::shared_ptr<Plugin> my_p = my_pi->plugin();
 294         boost::shared_ptr<Plugin> ot_p = ot_pi->plugin();
 295         if (!my_p || !ot_p) {
 296                 return false;
 297         }
 298         if (my_p->unique_id() != ot_p->unique_id()) {
 299                 return false;
 300         }
 301         return true;
 302 }
 303
 304 bool
 305 ProcessorEntry::drag_data_get (Glib::RefPtr<Gdk::DragContext> const, Gtk::SelectionData &data)
 306 {
 307         if (data.get_target() == "PluginPresetPtr") {
 308                 boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (_processor);
 309
 310                 if (!_plugin_preset_pointer || !pi) {
 311                         data.set (data.get_target(), 8, NULL, 0);
 312                         return true;
 313                 }
 314
 315                 boost::shared_ptr<ARDOUR::Plugin> plugin = pi->plugin();
 316                 assert (plugin);
 317
 318                 PluginManager& manager (PluginManager::instance());
 319                 bool fav = manager.get_status (_plugin_preset_pointer->_pip) == PluginManager::Favorite;
 320
 321                 NewPluginPresetDialog d (plugin,
 322                                 string_compose(_("New Favorite Preset for \"%1\""),_plugin_preset_pointer->_pip->name), !fav);
 323
 324                 _plugin_preset_pointer->_preset.valid = false;
 325
 326                 switch (d.run ()) {
 327                         case Gtk::RESPONSE_CANCEL:
 328                                 data.set (data.get_target(), 8, NULL, 0);
 329                                 return true;
 330                                 break;
 331
 332                         case Gtk::RESPONSE_NO:
 333                                 break;
 334
 335                         case Gtk::RESPONSE_ACCEPT:
 336                                 if (d.name().empty()) {
 337                                         break;
 338                                 }
 339
 340                                 if (d.replace ()) {
 341                                         plugin->remove_preset (d.name ());
 342                                 }
 343
 344                                 Plugin::PresetRecord const r = plugin->save_preset (d.name());
 345
 346                                 if (!r.uri.empty ()) {
 347                                         _plugin_preset_pointer->_preset.uri   = r.uri;
 348                                         _plugin_preset_pointer->_preset.label = r.label;
 349                                         _plugin_preset_pointer->_preset.user  = r.user;
 350                                         _plugin_preset_pointer->_preset.valid = r.valid;
 351                                 }
 352                 }
 353                 data.set (data.get_target(), 8, (const guchar *) &_plugin_preset_pointer, sizeof (PluginPresetPtr));
 354                 return true;
 355         }
 356         return false;
 357 }
 358
 359 void
 360 ProcessorEntry::set_position (Position p, uint32_t num)
 361 {
 362         _position = p;
 363         _position_num = num;
 364         setup_visuals ();
 365 }
 366
 367 void
 368 ProcessorEntry::set_visual_state (Gtkmm2ext::VisualState s, bool yn)
 369 {
 370         if (yn) {
 371                 _button.set_visual_state (Gtkmm2ext::VisualState (_button.visual_state() | s));
 372         } else {
 373                 _button.set_visual_state (Gtkmm2ext::VisualState (_button.visual_state() & ~s));
 374         }
 375 }
 376
 377 void
 378 ProcessorEntry::setup_visuals ()
 379 {
 380         if (_unknown_processor) {
 381                 _button.set_name ("processor stub");
 382                 return;
 383         }
 384
 385         switch (_position) {
 386         case PreFader:
 387                 if (_plugin_display) { _plugin_display->set_name ("processor prefader"); }
 388                 _button.set_name ("processor prefader");
 389                 break;
 390
 391         case Fader:
 392                 _button.set_name ("processor fader");
 393                 break;
 394
 395         case PostFader:
 396                 if (_plugin_display) { _plugin_display->set_name ("processor postfader"); }
 397                 _button.set_name ("processor postfader");
 398                 break;
 399         }
 400 }
 401
 402
 403 boost::shared_ptr<Processor>
 404 ProcessorEntry::processor () const
 405 {
 406         if (!_processor) {
 407                 return boost::shared_ptr<Processor>();
 408         }
 409         return _processor;
 410 }
 411
 412 void
 413 ProcessorEntry::set_enum_width (Width w)
 414 {
 415         _width = w;
 416         _button.set_text (name (_width));
 417 }
 418
 419 void
 420 ProcessorEntry::led_clicked(GdkEventButton *ev)
 421 {
 422         bool ctrl_shift_pressed = false;
 423         Keyboard::ModifierMask ctrl_shift_mask = Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier);
 424
 425         if (Keyboard::modifier_state_equals (ev->state, ctrl_shift_mask)) {
 426                 ctrl_shift_pressed = true;
 427         }
 428
 429         if (_processor) {
 430                 if (_button.get_active ()) {
 431                         if (ctrl_shift_pressed) {
 432                                 _parent->all_visible_processors_active(false);
 433
 434                                 if (_position == Fader) {
 435                                         _processor->deactivate ();
 436                                 }
 437                         }
 438                         else {
 439                                 _processor->deactivate ();
 440                         }
 441
 442                 } else {
 443                         if (ctrl_shift_pressed) {
 444                                 _parent->all_visible_processors_active(true);
 445
 446                                 if (_position == Fader) {
 447                                         _processor->activate ();
 448                                 }
 449                         }
 450                         else {
 451                                 _processor->activate ();
 452                         }
 453                 }
 454         }
 455 }
 456
 457 void
 458 ProcessorEntry::processor_active_changed ()
 459 {
 460         if (_processor) {
 461                 _button.set_active (_processor->active());
 462         }
 463 }
 464
 465 void
 466 ProcessorEntry::processor_property_changed (const PropertyChange& what_changed)
 467 {
 468         if (what_changed.contains (ARDOUR::Properties::name)) {
 469                 _button.set_text (name (_width));
 470                 setup_tooltip ();
 471         }
 472 }
 473
 474 void
 475 ProcessorEntry::processor_configuration_changed (const ChanCount in, const ChanCount out)
 476 {
 477         _parent->setup_routing_feeds ();
 478         input_icon.queue_draw();
 479         output_icon.queue_draw();
 480         routing_icon.queue_draw();
 481         output_routing_icon.queue_draw();
 482 }
 483
 484 void
 485 ProcessorEntry::setup_tooltip ()
 486 {
 487         if (_processor) {
 488                 boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (_processor);
 489                 if (pi) {
 490                         std::string postfix = "";
 491                         uint32_t replicated;
 492                         if ((replicated = pi->get_count()) > 1) {
 493                                 postfix = string_compose(_("\nThis mono plugin has been replicated %1 times."), replicated);
 494                         }
 495                         if (pi->plugin()->has_editor()) {
 496                                 ARDOUR_UI_UTILS::set_tooltip (_button,
 497                                                 string_compose (_("<b>%1</b>\nDouble-click to show GUI.\n%2+double-click to show generic GUI.%3"), name (Wide), Keyboard::primary_modifier_name (), postfix));
 498                         } else {
 499                                 ARDOUR_UI_UTILS::set_tooltip (_button,
 500                                                 string_compose (_("<b>%1</b>\nDouble-click to show generic GUI.%2"), name (Wide), postfix));
 501                         }
 502                         return;
 503                 }
 504                 if(boost::dynamic_pointer_cast<UnknownProcessor> (_processor)) {
 505                         ARDOUR_UI::instance()->set_tip (_button,
 506                                         string_compose (_("<b>%1</b>\nThe Plugin is not available on this system\nand has been replaced by a stub."), name (Wide)));
 507                         return;
 508                 }
 509         }
 510         ARDOUR_UI_UTILS::set_tooltip (_button, string_compose ("<b>%1</b>", name (Wide)));
 511 }
 512
 513 string
 514 ProcessorEntry::name (Width w) const
 515 {
 516         boost::shared_ptr<Send> send;
 517         string name_display;
 518
 519         if (!_processor) {
 520                 return string();
 521         }
 522
 523         if ((send = boost::dynamic_pointer_cast<Send> (_processor)) != 0 &&
 524             !boost::dynamic_pointer_cast<InternalSend>(_processor)) {
 525
 526                 name_display += '>';
 527
 528                 /* grab the send name out of its overall name */
 529
 530                 string::size_type lbracket, rbracket;
 531                 lbracket = send->name().find ('[');
 532                 rbracket = send->name().find (']');
 533
 534                 switch (w) {
 535                 case Wide:
 536                         name_display += send->name().substr (lbracket+1, lbracket-rbracket-1);
 537                         break;
 538                 case Narrow:
 539                         name_display += PBD::short_version (send->name().substr (lbracket+1, lbracket-rbracket-1), 4);
 540                         break;
 541                 }
 542
 543         } else {
 544                 boost::shared_ptr<ARDOUR::PluginInsert> pi;
 545                 uint32_t replicated;
 546                 if ((pi = boost::dynamic_pointer_cast<ARDOUR::PluginInsert> (_processor)) != 0
 547                                 && (replicated = pi->get_count()) > 1)
 548                 {
 549                         name_display += string_compose(_("(%1x1) "), replicated);
 550                 }
 551
 552                 switch (w) {
 553                 case Wide:
 554                         name_display += _processor->display_name();
 555                         break;
 556                 case Narrow:
 557                         name_display += PBD::short_version (_processor->display_name(), 5);
 558                         break;
 559                 }
 560
 561         }
 562
 563         return name_display;
 564 }
 565
 566 void
 567 ProcessorEntry::show_all_controls ()
 568 {
 569         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
 570                 (*i)->set_visible (true);
 571         }
 572
 573         _parent->update_gui_object_state (this);
 574 }
 575
 576 void
 577 ProcessorEntry::hide_all_controls ()
 578 {
 579         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
 580                 (*i)->set_visible (false);
 581         }
 582
 583         _parent->update_gui_object_state (this);
 584 }
 585
 586 void
 587 ProcessorEntry::add_control_state (XMLNode* node) const
 588 {
 589         for (list<Control*>::const_iterator i = _controls.begin(); i != _controls.end(); ++i) {
 590                 (*i)->add_state (node);
 591         }
 592
 593         if (_plugin_display) {
 594                 XMLNode* c = new XMLNode (X_("Object"));
 595                 c->add_property (X_("id"), X_("InlineDisplay"));
 596                 c->add_property (X_("visible"), _plugin_display->is_visible ());
 597                 node->add_child_nocopy (*c);
 598         }
 599 }
 600
 601 void
 602 ProcessorEntry::set_control_state (XMLNode const * node)
 603 {
 604         for (list<Control*>::const_iterator i = _controls.begin(); i != _controls.end(); ++i) {
 605                 (*i)->set_state (node);
 606         }
 607
 608         if (_plugin_display) {
 609                 XMLNode* n = GUIObjectState::get_node (node, X_("InlineDisplay"));
 610                 XMLProperty* p = n ? n->property (X_("visible")) : NULL;
 611                 if (p) {
 612                         if (string_is_affirmative (p->value ())) {
 613                                 _plugin_display->show();
 614                         } else {
 615                                 _plugin_display->hide();
 616                         }
 617                 }
 618         }
 619 }
 620
 621 string
 622 ProcessorEntry::state_id () const
 623 {
 624         return string_compose ("processor %1", _processor->id().to_s());
 625 }
 626
 627 void
 628 ProcessorEntry::hide_things ()
 629 {
 630         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
 631                 (*i)->hide_things ();
 632         }
 633 }
 634
 635
 636 Menu *
 637 ProcessorEntry::build_controls_menu ()
 638 {
 639         using namespace Menu_Helpers;
 640         Menu* menu = manage (new Menu);
 641         MenuList& items = menu->items ();
 642
 643         if (_plugin_display) {
 644                 items.push_back (CheckMenuElem (_("Inline Display")));
 645                 Gtk::CheckMenuItem* c = dynamic_cast<Gtk::CheckMenuItem*> (&items.back ());
 646                 c->set_active (_plugin_display->is_visible ());
 647                 c->signal_toggled().connect (sigc::mem_fun (*this, &ProcessorEntry::toggle_inline_display_visibility));
 648                 items.push_back (SeparatorElem ());
 649         }
 650
 651         items.push_back (
 652                 MenuElem (_("Show All Controls"), sigc::mem_fun (*this, &ProcessorEntry::show_all_controls))
 653                 );
 654
 655         items.push_back (
 656                 MenuElem (_("Hide All Controls"), sigc::mem_fun (*this, &ProcessorEntry::hide_all_controls))
 657                 );
 658
 659         if (!_controls.empty ()) {
 660                 items.push_back (SeparatorElem ());
 661         }
 662
 663         for (list<Control*>::iterator i = _controls.begin(); i != _controls.end(); ++i) {
 664                 items.push_back (CheckMenuElem ((*i)->name ()));
 665                 Gtk::CheckMenuItem* c = dynamic_cast<Gtk::CheckMenuItem*> (&items.back ());
 666                 c->set_active ((*i)->visible ());
 667                 c->signal_toggled().connect (sigc::bind (sigc::mem_fun (*this, &ProcessorEntry::toggle_control_visibility), *i));
 668         }
 669
 670         return menu;
 671 }
 672
 673 void
 674 ProcessorEntry::toggle_inline_display_visibility ()
 675 {
 676         if (_plugin_display->is_visible ()) {
 677                 _plugin_display->hide();
 678         } else {
 679                 _plugin_display->show();
 680         }
 681         _parent->update_gui_object_state (this);
 682 }
 683
 684 void
 685 ProcessorEntry::toggle_control_visibility (Control* c)
 686 {
 687         c->set_visible (!c->visible ());
 688         _parent->update_gui_object_state (this);
 689 }
 690
 691 Menu *
 692 ProcessorEntry::build_send_options_menu ()
 693 {
 694         using namespace Menu_Helpers;
 695         Menu* menu = manage (new Menu);
 696         MenuList& items = menu->items ();
 697
 698         boost::shared_ptr<Send> send = boost::dynamic_pointer_cast<Send> (_processor);
 699         if (send) {
 700
 701                 items.push_back (CheckMenuElem (_("Link panner controls")));
 702                 Gtk::CheckMenuItem* c = dynamic_cast<Gtk::CheckMenuItem*> (&items.back ());
 703                 c->set_active (send->panner_shell()->is_linked_to_route());
 704                 c->signal_toggled().connect (sigc::mem_fun (*this, &ProcessorEntry::toggle_panner_link));
 705
 706         }
 707         return menu;
 708 }
 709
 710 void
 711 ProcessorEntry::toggle_panner_link ()
 712 {
 713         boost::shared_ptr<Send> send = boost::dynamic_pointer_cast<Send> (_processor);
 714         if (send) {
 715                 send->panner_shell()->set_linked_to_route(!send->panner_shell()->is_linked_to_route());
 716         }
 717 }
 718
 719 ProcessorEntry::Control::Control (boost::shared_ptr<AutomationControl> c, string const & n)
 720         : _control (c)
 721         , _adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()), 0, 1, 0.01, 0.1)
 722         , _slider (&_adjustment, boost::shared_ptr<PBD::Controllable>(), 0, max(13.f, rintf(13.f * UIConfiguration::instance().get_ui_scale())))
 723         , _slider_persistant_tooltip (&_slider)
 724         , _button (ArdourButton::led_default_elements)
 725         , _ignore_ui_adjustment (false)
 726         , _visible (false)
 727         , _name (n)
 728 {
 729         _slider.set_controllable (c);
 730         box.set_padding(0, 0, 4, 4);
 731
 732         if (c->toggled()) {
 733                 _button.set_text (_name);
 734                 _button.set_led_left (true);
 735                 _button.set_name ("processor control button");
 736                 box.add (_button);
 737                 _button.show ();
 738
 739                 _button.signal_clicked.connect (sigc::mem_fun (*this, &Control::button_clicked));
 740                 _button.signal_led_clicked.connect (sigc::mem_fun (*this, &Control::button_clicked_event));
 741                 // dup. currently timers are used :(
 742                 //c->Changed.connect (_connection, MISSING_INVALIDATOR, boost::bind (&Control::control_changed, this), gui_context ());
 743
 744         } else {
 745
 746                 _slider.set_name ("ProcessorControlSlider");
 747                 _slider.set_text (_name);
 748
 749                 box.add (_slider);
 750                 _slider.show ();
 751
 752                 const ARDOUR::ParameterDescriptor& desc = c->desc();
 753                 double const lo = c->internal_to_interface(desc.lower);
 754                 double const up = c->internal_to_interface(desc.upper);
 755                 double const normal = c->internal_to_interface(desc.normal);
 756                 double smallstep = desc.smallstep;
 757                 double largestep = desc.largestep;
 758
 759                 if (smallstep == 0.0) {
 760                         smallstep = up / 1000.;
 761                 } else {
 762                         smallstep = c->internal_to_interface(desc.lower + smallstep);
 763                 }
 764
 765                 if (largestep == 0.0) {
 766                         largestep = up / 40.;
 767                 } else {
 768                         largestep = c->internal_to_interface(desc.lower + largestep);
 769                 }
 770
 771                 _adjustment.set_lower (lo);
 772                 _adjustment.set_upper (up);
 773                 _adjustment.set_step_increment (smallstep);
 774                 _adjustment.set_page_increment (largestep);
 775                 _slider.set_default_value (normal);
 776
 777                 _adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &Control::slider_adjusted));
 778                 // dup. currently timers are used :(
 779                 //c->Changed.connect (_connection, MISSING_INVALIDATOR, boost::bind (&Control::control_changed, this), gui_context ());
 780         }
 781
 782         // yuck, do we really need to do this?
 783         // according to c404374 this is only needed for send automation
 784         timer_connection = Timers::rapid_connect (sigc::mem_fun (*this, &Control::control_changed));
 785
 786         control_changed ();
 787         set_tooltip ();
 788
 789         /* We're providing our own PersistentTooltip */
 790         set_no_tooltip_whatsoever (_slider);
 791 }
 792
 793 ProcessorEntry::Control::~Control ()
 794 {
 795         timer_connection.disconnect ();
 796 }
 797
 798 void
 799 ProcessorEntry::Control::set_tooltip ()
 800 {
 801         boost::shared_ptr<AutomationControl> c = _control.lock ();
 802
 803         if (!c) {
 804                 return;
 805         }
 806         char tmp[256];
 807         if (c->toggled ()) {
 808                 snprintf (tmp, sizeof(tmp), "%s: %s", _name.c_str(), c->get_value() > 0.5 ? _("on") : _("off"));
 809         } else {
 810                 snprintf (tmp, sizeof(tmp), "%s: %.2f", _name.c_str(), c->internal_to_user (c->get_value ()));
 811         }
 812
 813         string sm = Gtkmm2ext::markup_escape_text (tmp);
 814         _slider_persistant_tooltip.set_tip (sm);
 815         ARDOUR_UI_UTILS::set_tooltip (_button, sm);
 816 }
 817
 818 void
 819 ProcessorEntry::Control::slider_adjusted ()
 820 {
 821         if (_ignore_ui_adjustment) {
 822                 return;
 823         }
 824
 825         boost::shared_ptr<AutomationControl> c = _control.lock ();
 826
 827         if (!c) {
 828                 return;
 829         }
 830
 831         c->set_value ( c->interface_to_internal(_adjustment.get_value ()) , Controllable::NoGroup);
 832         set_tooltip ();
 833 }
 834
 835 void
 836 ProcessorEntry::Control::button_clicked ()
 837 {
 838         boost::shared_ptr<AutomationControl> c = _control.lock ();
 839
 840         if (!c) {
 841                 return;
 842         }
 843
 844         bool const n = _button.get_active ();
 845
 846         c->set_value (n ? 0 : 1, Controllable::NoGroup);
 847         _button.set_active (!n);
 848         set_tooltip ();
 849 }
 850
 851 void
 852 ProcessorEntry::Control::button_clicked_event (GdkEventButton *ev)
 853 {
 854         (void) ev;
 855
 856         button_clicked ();
 857 }
 858
 859 void
 860 ProcessorEntry::Control::control_changed ()
 861 {
 862         boost::shared_ptr<AutomationControl> c = _control.lock ();
 863         if (!c) {
 864                 return;
 865         }
 866
 867         _ignore_ui_adjustment = true;
 868
 869         if (c->toggled ()) {
 870
 871                 _button.set_active (c->get_value() > 0.5);
 872
 873         } else {
 874                 // as long as rapid timers are used, only update the tooltip
 875                 // if the value has changed.
 876                 const double nval = c->internal_to_interface (c->get_value ());
 877                 if (_adjustment.get_value() != nval) {
 878                         _adjustment.set_value (nval);
 879                         set_tooltip ();
 880                 }
 881         }
 882
 883         _ignore_ui_adjustment = false;
 884 }
 885
 886 void
 887 ProcessorEntry::Control::add_state (XMLNode* node) const
 888 {
 889         XMLNode* c = new XMLNode (X_("Object"));
 890         c->add_property (X_("id"), state_id ());
 891         c->add_property (X_("visible"), _visible);
 892         node->add_child_nocopy (*c);
 893 }
 894
 895 void
 896 ProcessorEntry::Control::set_state (XMLNode const * node)
 897 {
 898         XMLNode* n = GUIObjectState::get_node (node, state_id ());
 899         if (n) {
 900                 XMLProperty* p = n->property (X_("visible"));
 901                 set_visible (p && string_is_affirmative (p->value ()));
 902         } else {
 903                 set_visible (false);
 904         }
 905 }
 906
 907 void
 908 ProcessorEntry::Control::set_visible (bool v)
 909 {
 910         if (v) {
 911                 box.show ();
 912         } else {
 913                 box.hide ();
 914         }
 915
 916         _visible = v;
 917 }
 918
 919 /** Called when the Editor might have re-shown things that
 920     we want hidden.
 921 */
 922 void
 923 ProcessorEntry::Control::hide_things ()
 924 {
 925         if (!_visible) {
 926                 box.hide ();
 927         }
 928 }
 929
 930 string
 931 ProcessorEntry::Control::state_id () const
 932 {
 933         boost::shared_ptr<AutomationControl> c = _control.lock ();
 934         assert (c);
 935
 936         return string_compose (X_("control %1"), c->id().to_s ());
 937 }
 938
 939 PluginInsertProcessorEntry::PluginInsertProcessorEntry (ProcessorBox* b, boost::shared_ptr<ARDOUR::PluginInsert> p, Width w)
 940         : ProcessorEntry (b, p, w)
 941         , _plugin_insert (p)
 942 {
 943         p->PluginIoReConfigure.connect (
 944                 _iomap_connection, invalidator (*this), boost::bind (&PluginInsertProcessorEntry::iomap_changed, this), gui_context()
 945                 );
 946         p->PluginMapChanged.connect (
 947                 _iomap_connection, invalidator (*this), boost::bind (&PluginInsertProcessorEntry::iomap_changed, this), gui_context()
 948                 );
 949         p->PluginConfigChanged.connect (
 950                 _iomap_connection, invalidator (*this), boost::bind (&PluginInsertProcessorEntry::iomap_changed, this), gui_context()
 951                 );
 952 }
 953
 954 void
 955 PluginInsertProcessorEntry::iomap_changed ()
 956 {
 957         _parent->setup_routing_feeds ();
 958         routing_icon.queue_draw();
 959         output_routing_icon.queue_draw();
 960 }
 961
 962 void
 963 PluginInsertProcessorEntry::hide_things ()
 964 {
 965         ProcessorEntry::hide_things ();
 966 }
 967
 968 ProcessorEntry::PortIcon::PortIcon(bool input) {
 969         _input = input;
 970         _ports = ARDOUR::ChanCount(ARDOUR::DataType::AUDIO, 1);
 971         set_size_request (-1, std::max (2.f, rintf(2.f * UIConfiguration::instance().get_ui_scale())));
 972 }
 973
 974 bool
 975 ProcessorEntry::PortIcon::on_expose_event (GdkEventExpose* ev)
 976 {
 977         cairo_t* cr = gdk_cairo_create (get_window()->gobj());
 978
 979         cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
 980         cairo_clip (cr);
 981
 982         Gtk::Allocation a = get_allocation();
 983         double const width = a.get_width();
 984         double const height = a.get_height();
 985
 986         Gdk::Color const bg = get_style()->get_bg (STATE_NORMAL);
 987         cairo_set_source_rgb (cr, bg.get_red_p (), bg.get_green_p (), bg.get_blue_p ());
 988
 989         cairo_rectangle (cr, 0, 0, width, height);
 990         cairo_fill (cr);
 991
 992         const double dx = rint(max(2., 2. * UIConfiguration::instance().get_ui_scale()));
 993         if (_ports.n_total() > 1) {
 994                 for (uint32_t i = 0; i < _ports.n_total(); ++i) {
 995                         set_routing_color (cr, i < _ports.n_midi());
 996                         const float x = rintf(width * (.2f + .6f * i / (_ports.n_total() - 1.f)));
 997                         cairo_rectangle (cr, x-dx * .5, 0, 1+dx, height);
 998                         cairo_fill(cr);
 999                 }
1000         } else if (_ports.n_total() == 1) {
1001                 set_routing_color (cr, _ports.n_midi() == 1);
1002                 const float x = rintf(width * .5);
1003                 cairo_rectangle (cr, x-dx * .5, 0, 1+dx, height);
1004                 cairo_fill(cr);
1005         }
1006
1007         cairo_destroy(cr);
1008         return true;
1009 }
1010
1011 ProcessorEntry::RoutingIcon::RoutingIcon (bool input)
1012         : _fed_by (false)
1013         , _input (input)
1014 {
1015         set_terminal (false);
1016 }
1017
1018 void
1019 ProcessorEntry::RoutingIcon::set_terminal (bool b) {
1020         _terminal = b;
1021         int h = std::max (8.f, rintf(8.f * sqrt (UIConfiguration::instance().get_ui_scale())));
1022         if (_terminal) {
1023                 h += std::max (4.f, rintf(4.f * sqrt (UIConfiguration::instance().get_ui_scale())));
1024         }
1025         set_size_request (-1, h);
1026 }
1027
1028 void
1029 ProcessorEntry::RoutingIcon::set (
1030                 const ARDOUR::ChanCount& in,
1031                 const ARDOUR::ChanCount& out,
1032                 const ARDOUR::ChanCount& sinks,
1033                 const ARDOUR::ChanCount& sources,
1034                 const ARDOUR::ChanMapping& in_map,
1035                 const ARDOUR::ChanMapping& out_map,
1036                 const ARDOUR::ChanMapping& thru_map)
1037 {
1038         _in       = in;
1039         _out      = out;
1040         _sources  = sources;
1041         _sinks    = sinks;
1042         _in_map   = in_map;
1043         _out_map  = out_map;
1044         _thru_map = thru_map;
1045 }
1046
1047 bool
1048 ProcessorEntry::RoutingIcon::in_identity () const {
1049         if (_thru_map.n_total () > 0) {
1050                 return false;
1051         }
1052         if (!_in_map.is_monotonic () || !_in_map.is_identity ()) {
1053                 return false;
1054         }
1055         if (_in_map.n_total () != _sinks.n_total () || _in.n_total () != _sinks.n_total ()) {
1056                 return false;
1057         }
1058         return true;
1059 }
1060
1061 bool
1062 ProcessorEntry::RoutingIcon::out_identity () const {
1063         if (_thru_map.n_total () > 0) {
1064                 // TODO skip if trhu is not connected to any of next's inputs
1065                 return false;
1066         }
1067         if (!_out_map.is_monotonic () || !_out_map.is_identity ()) {
1068                 return false;
1069         }
1070         if (_out_map.n_total () != _sources.n_total () || _out.n_total () != _sources.n_total ()) {
1071                 return false;
1072         }
1073         return true;
1074 }
1075
1076 bool
1077 ProcessorEntry::RoutingIcon::can_coalesce () const {
1078         if (_thru_map.n_total () > 0) {
1079                 return false;
1080         }
1081         if (_fed_by && _f_out != _f_sources) {
1082                 return false;
1083         }
1084         if (_input && _sinks == _in && (!_fed_by || _f_out == _in)) {
1085                 return true;
1086         }
1087         return false;
1088 }
1089
1090 void
1091 ProcessorEntry::RoutingIcon::set_fed_by (
1092                                 const ARDOUR::ChanCount& out,
1093                                 const ARDOUR::ChanCount& sources,
1094                                 const ARDOUR::ChanMapping& out_map,
1095                                 const ARDOUR::ChanMapping& thru_map)
1096 {
1097         _f_out      = out;
1098         _f_sources  = sources;
1099         _f_out_map  = out_map;
1100         _f_thru_map = thru_map;
1101         _fed_by     = true;
1102 }
1103
1104 void
1105 ProcessorEntry::RoutingIcon::set_feeding (
1106                                 const ARDOUR::ChanCount& in,
1107                                 const ARDOUR::ChanCount& sinks,
1108                                 const ARDOUR::ChanMapping& in_map,
1109                                 const ARDOUR::ChanMapping& thru_map)
1110 {
1111         _i_in       = in;
1112         _i_sinks    = sinks;
1113         _i_in_map   = in_map;
1114         _i_thru_map = thru_map;
1115         _feeding    = true;
1116 }
1117
1118 double
1119 ProcessorEntry::RoutingIcon::pin_x_pos (uint32_t i, double width, uint32_t n_total, uint32_t n_midi, bool midi)
1120 {
1121         if (!midi) { i += n_midi; }
1122         if (n_total == 1) {
1123                 assert (i == 0);
1124                 return rint (width * .5) +.5;
1125         }
1126         return rint (width * (.2 + .6 * i / (n_total - 1))) + .5;
1127 }
1128
1129 void
1130 ProcessorEntry::RoutingIcon::draw_gnd (cairo_t* cr, double x0, double y0, double height, bool midi)
1131 {
1132         const double dx = 1 + rint (max(2., 2. * UIConfiguration::instance().get_ui_scale()));
1133         const double y1 = rint (height * .66) + .5;
1134
1135         cairo_save (cr);
1136         cairo_translate (cr, x0, y0);
1137         cairo_move_to (cr, 0, height);
1138         cairo_line_to (cr, 0, y1);
1139         cairo_move_to (cr, 0 - dx, y1);
1140         cairo_line_to (cr, 0 + dx, y1);
1141
1142         set_routing_color (cr, midi);
1143         cairo_set_line_width (cr, 1.0);
1144         cairo_stroke (cr);
1145         cairo_restore (cr);
1146 }
1147
1148 void
1149 ProcessorEntry::RoutingIcon::draw_sidechain (cairo_t* cr, double x0, double y0, double height, bool midi)
1150 {
1151         const double dx = 1 + rint (max(2., 2. * UIConfiguration::instance().get_ui_scale()));
1152         const double y1 = rint (height * .5) - .5;
1153
1154         cairo_save (cr);
1155         cairo_translate (cr, x0, y0);
1156         cairo_move_to (cr, 0 - dx, height);
1157         cairo_line_to (cr, 0, y1);
1158         cairo_line_to (cr, 0 + dx, height);
1159         cairo_close_path (cr);
1160
1161         set_routing_color (cr, midi);
1162         cairo_fill (cr);
1163         cairo_restore (cr);
1164 }
1165
1166 void
1167 ProcessorEntry::RoutingIcon::draw_thru_src (cairo_t* cr, double x0, double y0, double height, bool midi)
1168 {
1169         const double dx = 1 + rint (max(2., 2. * UIConfiguration::instance().get_ui_scale()));
1170         const double y1 = rint (height * .5) + .5;
1171
1172         cairo_save (cr);
1173         cairo_translate (cr, x0, y0);
1174         cairo_move_to (cr, 0 - dx - .5, y1);
1175         cairo_line_to (cr, 0 + dx + .5, y1 - 2);
1176
1177         cairo_move_to (cr, 0 - dx - .5, y1 + 2);
1178         cairo_line_to (cr, 0 + dx + .5, y1);
1179
1180         cairo_move_to (cr, 0, y1 + 1);
1181         cairo_line_to (cr, 0, height);
1182
1183         set_routing_color (cr, midi);
1184         cairo_set_line_width  (cr, 1.0);
1185         cairo_stroke (cr);
1186         cairo_restore (cr);
1187 }
1188
1189 void
1190 ProcessorEntry::RoutingIcon::draw_thru_sink (cairo_t* cr, double x0, double y0, double height, bool midi)
1191 {
1192         const double dx = 1 + rint (max(2., 2. * UIConfiguration::instance().get_ui_scale()));
1193         const double y1 = rint (height * .5) - .5;
1194
1195         cairo_save (cr);
1196         cairo_translate (cr, x0, y0);
1197         cairo_move_to (cr, 0 - dx - .5, y1);
1198         cairo_line_to (cr, 0 + dx + .5, y1 - 2);
1199
1200         cairo_move_to (cr, 0 - dx - .5, y1 + 2);
1201         cairo_line_to (cr, 0 + dx + .5, y1);
1202
1203         cairo_move_to (cr, 0, y1 - 1);
1204         cairo_line_to (cr, 0, 0);
1205
1206         set_routing_color (cr, midi);
1207         cairo_set_line_width  (cr, 1.0);
1208         cairo_stroke (cr);
1209         cairo_restore (cr);
1210 }
1211
1212 void
1213 ProcessorEntry::RoutingIcon::draw_connection (cairo_t* cr, double x0, double x1, double y0, double y1, bool midi, bool dashed)
1214 {
1215         double bz = abs (y1 - y0);
1216
1217         cairo_move_to (cr, x0, y0);
1218         cairo_curve_to (cr, x0, y0 + bz, x1, y1 - bz, x1, y1);
1219         cairo_set_line_width  (cr, 1.0);
1220         cairo_set_line_cap  (cr,  CAIRO_LINE_CAP_ROUND);
1221         cairo_set_source_rgb (cr, 1, 0, 0);
1222         if (dashed) {
1223                 const double dashes[] = { 2, 3 };
1224                 cairo_set_dash (cr, dashes, 2, 0);
1225         }
1226         set_routing_color (cr, midi);
1227         cairo_stroke (cr);
1228         if (dashed) {
1229                 cairo_set_dash (cr, 0, 0, 0);
1230         }
1231 }
1232
1233 bool
1234 ProcessorEntry::RoutingIcon::on_expose_event (GdkEventExpose* ev)
1235 {
1236         cairo_t* cr = gdk_cairo_create (get_window()->gobj());
1237
1238         cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
1239         cairo_clip (cr);
1240
1241         cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
1242
1243         Gtk::Allocation a = get_allocation();
1244         double const width = a.get_width();
1245         double const height = a.get_height();
1246
1247         Gdk::Color const bg = get_style()->get_bg (STATE_NORMAL);
1248         cairo_set_source_rgb (cr, bg.get_red_p (), bg.get_green_p (), bg.get_blue_p ());
1249
1250         cairo_rectangle (cr, 0, 0, width, height);
1251         cairo_fill (cr);
1252
1253         if (_input) {
1254                 if (can_coalesce ()) {
1255                         expose_coalesced_input_map (cr, width, height);
1256                 } else {
1257                         expose_input_map (cr, width, height);
1258                 }
1259         } else {
1260                 expose_output_map (cr, width, height);
1261         }
1262
1263         cairo_destroy(cr);
1264         return true;
1265 }
1266
1267 void
1268 ProcessorEntry::RoutingIcon::expose_coalesced_input_map (cairo_t* cr, const double width, const double height)
1269 {
1270         const uint32_t pc_in = _sinks.n_total();
1271         const uint32_t pc_in_midi = _sinks.n_midi();
1272
1273         for (uint32_t i = 0; i < pc_in; ++i) {
1274                 const bool is_midi = i < pc_in_midi;
1275                 bool valid_in;
1276                 uint32_t pn = is_midi ? i : i - pc_in_midi;
1277                 DataType dt = is_midi ? DataType::MIDI : DataType::AUDIO;
1278                 uint32_t idx = _in_map.get (dt, pn, &valid_in);
1279                 if (!valid_in) {
1280                         double x = pin_x_pos (i, width, pc_in, 0, is_midi);
1281                         draw_gnd (cr, x, 0, height, is_midi);
1282                         continue;
1283                 }
1284                 if (idx >= _in.get (dt)) {
1285                         // side-chain, probably
1286                         double x = pin_x_pos (i, width, pc_in, 0, is_midi);
1287                         draw_sidechain (cr, x, 0, height, is_midi);
1288                         continue;
1289                 }
1290                 double c_x0;
1291                 double c_x1 = pin_x_pos (i, width, pc_in, 0, false);
1292
1293                 if (_fed_by) {
1294                         bool valid_src;
1295                         uint32_t src = _f_out_map.get_src (dt, idx, &valid_src);
1296                         if (!valid_src) {
1297                                 double x = pin_x_pos (i, width, pc_in, 0, false);
1298                                 bool valid_thru;
1299                                 _f_thru_map.get (dt, idx, &valid_thru);
1300                                 if (valid_thru) {
1301                                         draw_thru_src (cr, x, 0, height, is_midi);
1302                                 } else {
1303                                         draw_gnd (cr, x, 0, height, is_midi);
1304                                 }
1305                                 continue;
1306                         }
1307                         c_x0 = pin_x_pos (src, width, _f_sources.n_total(), _f_sources.n_midi(), is_midi);
1308                 } else {
1309                         c_x0 = pin_x_pos (idx, width, _in.n_total(), _in.n_midi(), is_midi);
1310                 }
1311                 draw_connection (cr, c_x0, c_x1, 0, height, is_midi);
1312         }
1313 }
1314
1315 void
1316 ProcessorEntry::RoutingIcon::expose_input_map (cairo_t* cr, const double width, const double height)
1317 {
1318         const uint32_t n_in = _in.n_total();
1319         const uint32_t n_in_midi = _in.n_midi();
1320         const uint32_t pc_in = _sinks.n_total();
1321         const uint32_t pc_in_midi = _sinks.n_midi();
1322
1323         // draw inputs to this
1324         for (uint32_t i = 0; i < pc_in; ++i) {
1325                 const bool is_midi = i < pc_in_midi;
1326                 bool valid_in;
1327                 uint32_t pn = is_midi ? i : i - pc_in_midi;
1328                 DataType dt = is_midi ? DataType::MIDI : DataType::AUDIO;
1329                 uint32_t idx = _in_map.get (dt, pn, &valid_in);
1330                 // check if it's fed
1331                 bool valid_src = true;
1332                 if (valid_in && idx < _in.get (dt) && _fed_by) {
1333                         bool valid_out;
1334                         bool valid_thru;
1335                         _f_out_map.get_src (dt, idx, &valid_out);
1336                         _f_thru_map.get (dt, idx, &valid_thru);
1337                         if (!valid_out && !valid_thru) {
1338                                 valid_src = false;
1339                         }
1340                 }
1341                 if (!valid_in || !valid_src) {
1342                         double x = pin_x_pos (i, width, pc_in, 0, is_midi);
1343                         draw_gnd (cr, x, 0, height, is_midi);
1344                         continue;
1345                 }
1346                 if (idx >= _in.get (dt)) {
1347                         // side-chain, probably
1348                         double x = pin_x_pos (i, width, pc_in, 0, is_midi);
1349                         draw_sidechain (cr, x, 0, height, is_midi);
1350                         continue;
1351                 }
1352                 double c_x1 = pin_x_pos (i, width, pc_in, 0, false);
1353                 double c_x0 = pin_x_pos (idx, width, n_in, n_in_midi, is_midi);
1354                 draw_connection (cr, c_x0, c_x1, 0, height, is_midi);
1355         }
1356
1357         // draw reverse thru
1358         for (uint32_t i = 0; i < n_in; ++i) {
1359                 const bool is_midi = i < n_in_midi;
1360                 bool valid_thru;
1361                 uint32_t pn = is_midi ? i : i - n_in_midi;
1362                 DataType dt = is_midi ? DataType::MIDI : DataType::AUDIO;
1363                 uint32_t idx = _thru_map.get_src (dt, pn, &valid_thru);
1364                 if (!valid_thru) {
1365                         continue;
1366                 }
1367                 double x = pin_x_pos (i, width, n_in, 0, is_midi);
1368                 draw_thru_sink (cr, x, 0, height, is_midi);
1369         }
1370 }
1371
1372 void
1373 ProcessorEntry::RoutingIcon::expose_output_map (cairo_t* cr, const double width, const double height)
1374 {
1375         int dh = std::max (4.f, rintf(4.f * UIConfiguration::instance().get_ui_scale()));
1376         double ht = _terminal ? height - dh : height;
1377
1378         // draw outputs of this
1379         const uint32_t pc_out = _sources.n_total();
1380         const uint32_t pc_out_midi = _sources.n_midi();
1381         const uint32_t n_out = _out.n_total();
1382         const uint32_t n_out_midi = _out.n_midi();
1383
1384         for (uint32_t i = 0; i < pc_out; ++i) {
1385                 const bool is_midi = i < pc_out_midi;
1386                 bool valid_out;
1387                 uint32_t pn = is_midi ? i : i - pc_out_midi;
1388                 DataType dt = is_midi ? DataType::MIDI : DataType::AUDIO;
1389                 uint32_t idx = _out_map.get (dt, pn, &valid_out);
1390                 if (!valid_out) {
1391                         continue;
1392                 }
1393                 // skip connections that are not used in the next's input
1394                 if (_feeding) {
1395                         bool valid_thru, valid_sink;
1396                         _i_in_map.get_src (dt, idx, &valid_sink);
1397                         _i_thru_map.get_src (dt, idx, &valid_thru);
1398                         if (!valid_thru && !valid_sink) {
1399                                 continue;
1400                         }
1401                 }
1402                 double c_x0 = pin_x_pos (i, width, pc_out, 0, false);
1403                 double c_x1 = pin_x_pos (idx, width, n_out, n_out_midi, is_midi);
1404                 draw_connection (cr, c_x0, c_x1, 0, ht, is_midi);
1405         }
1406
1407         for (uint32_t i = 0; i < n_out; ++i) {
1408                 const bool is_midi = i < n_out_midi;
1409                 uint32_t pn = is_midi ? i : i - n_out_midi;
1410                 DataType dt = is_midi ? DataType::MIDI : DataType::AUDIO;
1411                 double x = pin_x_pos (i, width, n_out, 0, is_midi);
1412
1413                 if (!_terminal) {
1414                         // only check thru (gnd is part of input)
1415                         bool valid_thru;
1416                         uint32_t idx = _thru_map.get (dt, pn, &valid_thru);
1417                         if (!valid_thru) {
1418                                 continue;
1419                         }
1420
1421                         // skip connections that are not used in the next's input :(
1422                         if (_feeding) {
1423                                 bool valid_sink;
1424                                 _i_in_map.get_src (dt, pn, &valid_sink);
1425                                 _i_thru_map.get_src (dt, pn, &valid_thru);
1426                                 if (!valid_thru && !valid_sink) {
1427                                         continue;
1428                                 }
1429                         }
1430
1431                         if (idx >= _in.get (dt)) {
1432                                 draw_sidechain (cr, x, 0, ht, is_midi);
1433                         } else {
1434                                 draw_thru_src (cr, x, 0, ht, is_midi);
1435                         }
1436
1437                 } else {
1438                         // terminal node, add arrows
1439                         bool valid_src;
1440                         _out_map.get_src (dt, pn, &valid_src);
1441                         if (!valid_src) {
1442                                 bool valid_thru;
1443                                 uint32_t idx = _thru_map.get (dt, pn, &valid_thru);
1444                                 if (valid_thru) {
1445                                         if (idx >= _in.get (dt)) {
1446                                                 draw_sidechain (cr, x, 0, height - dh, is_midi);
1447                                         } else {
1448                                                 draw_thru_src (cr, x, 0, height - dh, is_midi);
1449                                         }
1450                                 } else {
1451                                         draw_gnd (cr, x, 0, height - dh, is_midi);
1452                                 }
1453                         }
1454
1455                         set_routing_color (cr, is_midi);
1456                         cairo_set_line_width (cr, 1.0);
1457                         cairo_move_to (cr, x, height - dh);
1458                         cairo_line_to (cr, x, height - 2);
1459                         cairo_stroke (cr);
1460
1461                         const double ar = dh - 1;
1462                         cairo_move_to (cr, x - ar, height - ar);
1463                         cairo_line_to (cr, x     , height - .5);
1464                         cairo_line_to (cr, x + ar, height - ar);
1465                         cairo_line_to (cr, x     , height - ar * .5);
1466                         cairo_close_path (cr);
1467                         cairo_fill_preserve (cr);
1468                         cairo_stroke (cr);
1469                 }
1470         }
1471 }
1472
1473 ProcessorEntry::PluginDisplay::PluginDisplay (boost::shared_ptr<ARDOUR::Plugin> p, uint32_t max_height)
1474         : _plug (p)
1475         , _surf (0)
1476         , _max_height (max_height)
1477         , _cur_height (1)
1478         , _scroll (false)
1479 {
1480         set_name ("processor prefader");
1481         _plug->QueueDraw.connect (_qdraw_connection, invalidator (*this),
1482                         boost::bind (&Gtk::Widget::queue_draw, this), gui_context ());
1483 }
1484
1485 ProcessorEntry::PluginDisplay::~PluginDisplay ()
1486 {
1487         if (_surf) {
1488                 cairo_surface_destroy (_surf);
1489         }
1490 }
1491
1492 void
1493 ProcessorEntry::PluginDisplay::on_size_request (Gtk::Requisition* req)
1494 {
1495         req->width = 56;
1496         req->height = _cur_height;
1497 }
1498
1499
1500 void
1501 ProcessorEntry::PluginDisplay::update_height_alloc (uint32_t inline_height)
1502 {
1503         /* work-around scroll-bar + aspect ratio
1504          * show inline-view -> height changes -> scrollbar gets added
1505          * -> width changes -> inline-view, fixed aspect ratio -> height changes
1506          * -> scroll bar is removed [-> width changes ; repeat ]
1507          */
1508         uint32_t shm = std::min (_max_height, inline_height);
1509         bool sc = false;
1510         Gtk::Container* pr = get_parent();
1511         for (uint32_t i = 0; i < 4 && pr; ++i) {
1512                 // VBox, EventBox, ViewPort, ScrolledWindow
1513                 pr = pr->get_parent();
1514         }
1515         Gtk::ScrolledWindow* sw = dynamic_cast<Gtk::ScrolledWindow*> (pr);
1516         if (sw) {
1517                 const Gtk::VScrollbar* vsb = sw->get_vscrollbar();
1518                 sc = vsb && vsb->is_visible();
1519         }
1520
1521         if (shm != _cur_height) {
1522                 if (_scroll == sc || _cur_height < shm) {
1523                         queue_resize ();
1524                 }
1525                 _cur_height = shm;
1526         }
1527         _scroll = sc;
1528 }
1529
1530 uint32_t
1531 ProcessorEntry::PluginDisplay::render_inline (cairo_t* cr, uint32_t width)
1532 {
1533         Plugin::Display_Image_Surface* dis = _plug->render_inline_display (width, _max_height);
1534         if (!dis) {
1535                 return 0;
1536         }
1537
1538         /* allocate a local image-surface,
1539          * We cannot re-use the data via cairo_image_surface_create_for_data(),
1540          * since pixman keeps a reference to it.
1541          * we'd need to hand over the data and ha cairo_surface_destroy to free it.
1542          * it might be possible to work around via cairo_surface_set_user_data().
1543          */
1544         if (!_surf
1545                         || dis->width !=  cairo_image_surface_get_width (_surf)
1546                         || dis->height !=  cairo_image_surface_get_height (_surf)
1547                  ) {
1548                 if (_surf) {
1549                         cairo_surface_destroy (_surf);
1550                 }
1551                 _surf = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, dis->width, dis->height);
1552         }
1553
1554         if (cairo_image_surface_get_stride (_surf) == dis->stride) {
1555                 memcpy (cairo_image_surface_get_data (_surf), dis->data, dis->stride * dis->height);
1556         } else {
1557                 unsigned char *src = dis->data;
1558                 unsigned char *dst = cairo_image_surface_get_data (_surf);
1559                 const int dst_stride =  cairo_image_surface_get_stride (_surf);
1560                 for (int y = 0; y < dis->height; ++y) {
1561                         memcpy (dst, src, dis->width * 4 /*ARGB32*/);
1562                         src += dis->stride;
1563                         dst += dst_stride;
1564                 }
1565         }
1566
1567         cairo_surface_mark_dirty(_surf);
1568         const double xc = floor ((width - dis->width) * .5);
1569         cairo_set_source_surface(cr, _surf, xc, 0);
1570         cairo_paint (cr);
1571
1572         return dis->height;
1573 }
1574
1575 bool
1576 ProcessorEntry::PluginDisplay::on_expose_event (GdkEventExpose* ev)
1577 {
1578         Gtk::Allocation a = get_allocation();
1579         double const width = a.get_width();
1580         double const height = a.get_height();
1581
1582         cairo_t* cr = gdk_cairo_create (get_window()->gobj());
1583         cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
1584         cairo_clip (cr);
1585
1586         Gdk::Color const bg = get_style()->get_bg (STATE_NORMAL);
1587         cairo_set_source_rgb (cr, bg.get_red_p (), bg.get_green_p (), bg.get_blue_p ());
1588         cairo_rectangle (cr, 0, 0, width, height);
1589         cairo_fill (cr);
1590
1591         cairo_save (cr);
1592         cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
1593         Gtkmm2ext::rounded_rectangle (cr, .5, -1.5, width - 1, height + 1, 7);
1594         cairo_clip (cr);
1595         cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
1596
1597         uint32_t ht = render_inline (cr, width);
1598         cairo_restore (cr);
1599
1600         if (ht == 0) {
1601                 hide ();
1602                 if (_cur_height != 1) {
1603                         _cur_height = 1;
1604                         queue_resize ();
1605                 }
1606                 cairo_destroy (cr);
1607                 return true;
1608         } else {
1609                 update_height_alloc (ht);
1610         }
1611
1612         bool failed = false;
1613         std::string name = get_name();
1614         ArdourCanvas::Color fill_color = UIConfiguration::instance().color (string_compose ("%1: fill active", name), &failed);
1615
1616         Gtkmm2ext::rounded_rectangle (cr, .5, -1.5, width - 1, height + 1, 7);
1617         cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
1618         cairo_set_line_width(cr, 1.0);
1619         ArdourCanvas::set_source_rgb_a (cr, fill_color, 1.0);
1620         cairo_stroke (cr);
1621
1622         cairo_destroy(cr);
1623         return true;
1624 }
1625
1626 ProcessorEntry::LuaPluginDisplay::LuaPluginDisplay (boost::shared_ptr<ARDOUR::LuaProc> p, uint32_t max_height)
1627         : PluginDisplay (p, max_height)
1628         , _luaproc (p)
1629         , _lua_render_inline (0)
1630 {
1631         p->setup_lua_inline_gui (&lua_gui);
1632
1633         lua_State* LG = lua_gui.getState ();
1634         LuaInstance::bind_cairo (LG);
1635         luabridge::LuaRef lua_render = luabridge::getGlobal (LG, "render_inline");
1636         assert (lua_render.isFunction ());
1637         _lua_render_inline = new luabridge::LuaRef (lua_render);
1638 }
1639
1640 ProcessorEntry::LuaPluginDisplay::~LuaPluginDisplay ()
1641 {
1642         delete (_lua_render_inline);
1643 }
1644
1645 uint32_t
1646 ProcessorEntry::LuaPluginDisplay::render_inline (cairo_t *cr, uint32_t width)
1647 {
1648         Cairo::Context ctx (cr);
1649         try {
1650                 luabridge::LuaRef rv = (*_lua_render_inline)((Cairo::Context *)&ctx, width, _max_height);
1651                 if (rv.isTable ()) {
1652                         uint32_t h = rv[2];
1653                         return h;
1654                 }
1655         } catch (luabridge::LuaException const& e) {
1656                 ;
1657         }
1658         return 0;
1659 }
1660
1661
1662 static std::list<Gtk::TargetEntry> drop_targets()
1663 {
1664         std::list<Gtk::TargetEntry> tmp;
1665         tmp.push_back (Gtk::TargetEntry ("processor")); // from processor-box to processor-box
1666         tmp.push_back (Gtk::TargetEntry ("PluginInfoPtr")); // from plugin-manager
1667         tmp.push_back (Gtk::TargetEntry ("PluginPresetPtr")); // from sidebar
1668         return tmp;
1669 }
1670
1671 static std::list<Gtk::TargetEntry> drag_targets()
1672 {
1673         std::list<Gtk::TargetEntry> tmp;
1674         tmp.push_back (Gtk::TargetEntry ("PluginPresetPtr")); // to sidebar (optional preset)
1675         tmp.push_back (Gtk::TargetEntry ("processor")); // to processor-box (copy)
1676         return tmp;
1677 }
1678
1679 static std::list<Gtk::TargetEntry> drag_targets_noplugin()
1680 {
1681         std::list<Gtk::TargetEntry> tmp;
1682         tmp.push_back (Gtk::TargetEntry ("processor")); // to processor box (sends, faders re-order)
1683         return tmp;
1684 }
1685
1686 ProcessorBox::ProcessorBox (ARDOUR::Session* sess, boost::function<PluginSelector*()> get_plugin_selector,
1687                             RouteProcessorSelection& rsel, MixerStrip* parent, bool owner_is_mixer)
1688         : _parent_strip (parent)
1689         , _owner_is_mixer (owner_is_mixer)
1690         , ab_direction (true)
1691         , _get_plugin_selector (get_plugin_selector)
1692         , _placement (-1)
1693         , _visible_prefader_processors (0)
1694         , _rr_selection(rsel)
1695         , processor_display (drop_targets())
1696         , _redisplay_pending (false)
1697 {
1698         set_session (sess);
1699
1700         /* ProcessorBox actions and bindings created statically by call to
1701          * ProcessorBox::register_actions(), made by ARDOUR_UI so that actions
1702          * are available for context menus.
1703          */
1704
1705         processor_display.set_data ("ardour-bindings", bindings);
1706
1707         _width = Wide;
1708         processor_menu = 0;
1709         no_processor_redisplay = false;
1710
1711         processor_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1712         processor_scroller.add (processor_display);
1713         pack_start (processor_scroller, true, true);
1714
1715         processor_display.set_flags (CAN_FOCUS);
1716         processor_display.set_name ("ProcessorList");
1717         processor_display.set_data ("processorbox", this);
1718         processor_display.set_size_request (48, -1);
1719         processor_display.set_spacing (0);
1720
1721         processor_display.signal_enter_notify_event().connect (sigc::mem_fun(*this, &ProcessorBox::enter_notify), false);
1722         processor_display.signal_leave_notify_event().connect (sigc::mem_fun(*this, &ProcessorBox::leave_notify), false);
1723
1724         processor_display.ButtonPress.connect (sigc::mem_fun (*this, &ProcessorBox::processor_button_press_event));
1725         processor_display.ButtonRelease.connect (sigc::mem_fun (*this, &ProcessorBox::processor_button_release_event));
1726
1727         processor_display.Reordered.connect (sigc::mem_fun (*this, &ProcessorBox::reordered));
1728         processor_display.DropFromAnotherBox.connect (sigc::mem_fun (*this, &ProcessorBox::object_drop));
1729         processor_display.DropFromExternal.connect (sigc::mem_fun (*this, &ProcessorBox::plugin_drop));
1730
1731         processor_scroller.show ();
1732         processor_display.show ();
1733
1734         if (parent) {
1735                 parent->DeliveryChanged.connect (
1736                         _mixer_strip_connections, invalidator (*this), boost::bind (&ProcessorBox::mixer_strip_delivery_changed, this, _1), gui_context ()
1737                         );
1738         }
1739
1740         ARDOUR_UI_UTILS::set_tooltip (processor_display, _("Right-click to add/remove/edit\nplugins,inserts,sends and more"));
1741 }
1742
1743 ProcessorBox::~ProcessorBox ()
1744 {
1745         /* it may appear as if we should delete processor_menu but that is a
1746          * pointer to a widget owned by the UI Manager, and has potentially
1747          * be returned to many other ProcessorBoxes. GTK doesn't really make
1748          * clear the ownership of this widget, which is a menu and thus is
1749          * never packed into any container other than an implict GtkWindow.
1750          *
1751          * For now, until or if we ever get clarification over the ownership
1752          * story just let it continue to exist. At worst, its a small memory leak.
1753          */
1754 }
1755
1756 void
1757 ProcessorBox::set_route (boost::shared_ptr<Route> r)
1758 {
1759         if (_route == r) {
1760                 return;
1761         }
1762
1763         _route_connections.drop_connections();
1764
1765         /* new route: any existing block on processor redisplay must be meaningless */
1766         no_processor_redisplay = false;
1767         _route = r;
1768
1769         _route->processors_changed.connect (
1770                 _route_connections, invalidator (*this), boost::bind (&ProcessorBox::route_processors_changed, this, _1), gui_context()
1771                 );
1772
1773         _route->DropReferences.connect (
1774                 _route_connections, invalidator (*this), boost::bind (&ProcessorBox::route_going_away, this), gui_context()
1775                 );
1776
1777         _route->PropertyChanged.connect (
1778                 _route_connections, invalidator (*this), boost::bind (&ProcessorBox::route_property_changed, this, _1), gui_context()
1779                 );
1780
1781         redisplay_processors ();
1782 }
1783
1784 void
1785 ProcessorBox::route_going_away ()
1786 {
1787         /* don't keep updating display as processors are deleted */
1788         no_processor_redisplay = true;
1789         _route.reset ();
1790 }
1791
1792 boost::shared_ptr<Processor>
1793 ProcessorBox::find_drop_position (ProcessorEntry* position)
1794 {
1795         boost::shared_ptr<Processor> p;
1796         if (position) {
1797                 p = position->processor ();
1798                 if (!p) {
1799                         /* dropped on the blank entry (which will be before the
1800                                  fader), so use the first non-blank child as our
1801                                  `dropped on' processor */
1802                         list<ProcessorEntry*> c = processor_display.children ();
1803                         list<ProcessorEntry*>::iterator i = c.begin ();
1804
1805                         assert (i != c.end ());
1806                         p = (*i)->processor ();
1807                         assert (p);
1808                 }
1809         }
1810         return p;
1811 }
1812
1813 void
1814 ProcessorBox::_drop_plugin_preset (Gtk::SelectionData const &data, Route::ProcessorList &pl)
1815 {
1816                 const void * d = data.get_data();
1817                 const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>* tv = reinterpret_cast<const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>*>(d);
1818
1819                 PluginPresetList nfos;
1820                 TreeView* source;
1821                 tv->get_object_drag_data (nfos, &source);
1822
1823                 for (list<PluginPresetPtr>::const_iterator i = nfos.begin(); i != nfos.end(); ++i) {
1824                         PluginPresetPtr ppp = (*i);
1825                         PluginInfoPtr pip = ppp->_pip;
1826                         PluginPtr p = pip->load (*_session);
1827                         if (!p) {
1828                                 continue;
1829                         }
1830
1831                         if (ppp->_preset.valid) {
1832                                 p->load_preset (ppp->_preset);
1833                         }
1834
1835                         boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
1836                         if (Config->get_new_plugins_active ()) {
1837                                 processor->activate ();
1838                         }
1839                         pl.push_back (processor);
1840                 }
1841 }
1842
1843 void
1844 ProcessorBox::_drop_plugin (Gtk::SelectionData const &data, Route::ProcessorList &pl)
1845 {
1846                 const void * d = data.get_data();
1847                 const Gtkmm2ext::DnDTreeView<ARDOUR::PluginInfoPtr>* tv = reinterpret_cast<const Gtkmm2ext::DnDTreeView<ARDOUR::PluginInfoPtr>*>(d);
1848                 PluginInfoList nfos;
1849
1850                 TreeView* source;
1851                 tv->get_object_drag_data (nfos, &source);
1852
1853                 for (list<PluginInfoPtr>::const_iterator i = nfos.begin(); i != nfos.end(); ++i) {
1854                         PluginPtr p = (*i)->load (*_session);
1855                         if (!p) {
1856                                 continue;
1857                         }
1858                         boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
1859                         if (Config->get_new_plugins_active ()) {
1860                                 processor->activate ();
1861                         }
1862                         pl.push_back (processor);
1863                 }
1864 }
1865
1866 void
1867 ProcessorBox::plugin_drop (Gtk::SelectionData const &data, ProcessorEntry* position, Glib::RefPtr<Gdk::DragContext> const & context)
1868 {
1869         if (!_session) {
1870                 return;
1871         }
1872
1873         boost::shared_ptr<Processor> p = find_drop_position (position);
1874         Route::ProcessorList pl;
1875
1876         if (data.get_target() == "PluginInfoPtr") {
1877                 _drop_plugin (data, pl);
1878         }
1879         else if (data.get_target() == "PluginPresetPtr") {
1880                 _drop_plugin_preset (data, pl);
1881         }
1882         else {
1883                 return;
1884         }
1885
1886         Route::ProcessorStreams err;
1887         if (_route->add_processors (pl, p, &err)) {
1888                 string msg = _(
1889                                 "Processor Drag/Drop failed. Probably because\n\
1890 the I/O configuration of the plugins could\n\
1891 not match the configuration of this track.");
1892                 MessageDialog am (msg);
1893                 am.run ();
1894         }
1895 }
1896
1897 void
1898 ProcessorBox::object_drop (DnDVBox<ProcessorEntry>* source, ProcessorEntry* position, Glib::RefPtr<Gdk::DragContext> const & context)
1899 {
1900         if (Gdk::ACTION_LINK == context->get_selected_action()) {
1901                 list<ProcessorEntry*> children = source->selection ();
1902                 assert (children.size() == 1);
1903                 ProcessorEntry* other = *children.begin();
1904                 assert (other->can_copy_state (position));
1905                 boost::shared_ptr<ARDOUR::Processor> otherproc = other->processor();
1906                 boost::shared_ptr<ARDOUR::Processor> proc = position->processor();
1907                 boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (proc);
1908                 assert (otherproc && proc && pi);
1909
1910                 PBD::ID id = pi->id();
1911                 XMLNode& state = otherproc->get_state ();
1912                 /* strip side-chain state (processor inside processor must be a side-chain)
1913                  * otherwise we'll end up with duplicate ports-names.
1914                  * (this needs a better solution which retains connections)
1915                  */
1916                 state.remove_nodes ("Processor");
1917                 proc->set_state (state, Stateful::loading_state_version);
1918                 boost::dynamic_pointer_cast<PluginInsert>(proc)->update_id (id);
1919                 return;
1920         }
1921
1922         boost::shared_ptr<Processor> p = find_drop_position (position);
1923
1924         list<ProcessorEntry*> children = source->selection ();
1925         list<boost::shared_ptr<Processor> > procs;
1926         for (list<ProcessorEntry*>::const_iterator i = children.begin(); i != children.end(); ++i) {
1927                 if ((*i)->processor ()) {
1928                         if (boost::dynamic_pointer_cast<UnknownProcessor> ((*i)->processor())) {
1929                                 continue;
1930                         }
1931                         procs.push_back ((*i)->processor ());
1932                 }
1933         }
1934
1935         for (list<boost::shared_ptr<Processor> >::const_iterator i = procs.begin(); i != procs.end(); ++i) {
1936                 XMLNode& state = (*i)->get_state ();
1937                 XMLNodeList nlist;
1938                 nlist.push_back (&state);
1939                 paste_processor_state (nlist, p);
1940                 delete &state;
1941         }
1942
1943         /* since the dndvbox doesn't take care of this properly, we have to delete the originals
1944            ourselves.
1945         */
1946
1947         if ((context->get_suggested_action() == Gdk::ACTION_MOVE) && source) {
1948                 ProcessorBox* other = reinterpret_cast<ProcessorBox*> (source->get_data ("processorbox"));
1949                 if (other) {
1950                         other->delete_dragged_processors (procs);
1951                 }
1952         }
1953 }
1954
1955 void
1956 ProcessorBox::set_width (Width w)
1957 {
1958         if (_width == w) {
1959                 return;
1960         }
1961
1962         _width = w;
1963
1964         list<ProcessorEntry*> children = processor_display.children ();
1965         for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
1966                 (*i)->set_enum_width (w);
1967         }
1968
1969         queue_resize ();
1970 }
1971
1972 Gtk::Menu*
1973 ProcessorBox::build_possible_aux_menu ()
1974 {
1975         boost::shared_ptr<RouteList> rl = _session->get_routes_with_internal_returns();
1976
1977         if (rl->empty()) {
1978                 /* No aux sends if there are no busses */
1979                 return 0;
1980         }
1981
1982         if (_route->is_monitor ()) {
1983                 return 0;
1984         }
1985
1986         using namespace Menu_Helpers;
1987         Menu* menu = manage (new Menu);
1988         MenuList& items = menu->items();
1989
1990         for (RouteList::iterator r = rl->begin(); r != rl->end(); ++r) {
1991                 if (!_route->internal_send_for (*r) && *r != _route) {
1992                         items.push_back (MenuElem ((*r)->name(), sigc::bind (sigc::ptr_fun (ProcessorBox::rb_choose_aux), boost::weak_ptr<Route>(*r))));
1993                 }
1994         }
1995
1996         return menu;
1997 }
1998
1999 void
2000 ProcessorBox::show_processor_menu (int arg)
2001 {
2002         if (processor_menu == 0) {
2003                 processor_menu = build_processor_menu ();
2004                 processor_menu->signal_unmap().connect (sigc::mem_fun (*this, &ProcessorBox::processor_menu_unmapped));
2005         }
2006
2007         /* Sort out the plugin submenu */
2008
2009         Gtk::MenuItem* plugin_menu_item = dynamic_cast<Gtk::MenuItem*>(ActionManager::get_widget("/ProcessorMenu/newplugin"));
2010
2011         if (plugin_menu_item) {
2012                 plugin_menu_item->set_submenu (*_get_plugin_selector()->plugin_menu());
2013         }
2014
2015         /* And the aux submenu */
2016
2017         Gtk::MenuItem* aux_menu_item = dynamic_cast<Gtk::MenuItem*>(ActionManager::get_widget("/ProcessorMenu/newaux"));
2018
2019         if (aux_menu_item) {
2020                 Menu* m = build_possible_aux_menu();
2021                 if (m && !m->items().empty()) {
2022                         aux_menu_item->set_submenu (*m);
2023                         aux_menu_item->set_sensitive (true);
2024                 } else {
2025                         /* stupid gtkmm: we need to pass a null reference here */
2026                         gtk_menu_item_set_submenu (aux_menu_item->gobj(), 0);
2027                         aux_menu_item->set_sensitive (false);
2028                 }
2029         }
2030
2031         ActionManager::get_action (X_("ProcessorMenu"), "newinsert")->set_sensitive (!_route->is_monitor ());
2032         ActionManager::get_action (X_("ProcessorMenu"), "newsend")->set_sensitive (!_route->is_monitor ());
2033
2034         ProcessorEntry* single_selection = 0;
2035         if (processor_display.selection().size() == 1) {
2036                 single_selection = processor_display.selection().front();
2037         }
2038
2039         /* And the controls submenu */
2040
2041         Gtk::MenuItem* controls_menu_item = dynamic_cast<Gtk::MenuItem*>(ActionManager::get_widget("/ProcessorMenu/controls"));
2042
2043         if (controls_menu_item) {
2044                 if (single_selection) {
2045                         Menu* m = single_selection->build_controls_menu ();
2046                         if (m && !m->items().empty()) {
2047                                 controls_menu_item->set_submenu (*m);
2048                                 controls_menu_item->set_sensitive (true);
2049                         } else {
2050                                 gtk_menu_item_set_submenu (controls_menu_item->gobj(), 0);
2051                                 controls_menu_item->set_sensitive (false);
2052                         }
2053                 } else {
2054                         controls_menu_item->set_sensitive (false);
2055                 }
2056         }
2057
2058         Gtk::MenuItem* send_menu_item = dynamic_cast<Gtk::MenuItem*>(ActionManager::get_widget("/ProcessorMenu/send_options"));
2059         if (send_menu_item) {
2060                 if (single_selection && !_route->is_monitor()) {
2061                         Menu* m = single_selection->build_send_options_menu ();
2062                         if (m && !m->items().empty()) {
2063                                 send_menu_item->set_submenu (*m);
2064                                 send_menu_item->set_sensitive (true);
2065                         } else {
2066                                 gtk_menu_item_set_submenu (send_menu_item->gobj(), 0);
2067                                 send_menu_item->set_sensitive (false);
2068                         }
2069                 } else {
2070                         send_menu_item->set_sensitive (false);
2071                 }
2072         }
2073
2074         /* Sensitise actions as approprioate */
2075
2076
2077         const bool sensitive = !processor_display.selection().empty() && ! stub_processor_selected ();
2078
2079         paste_action->set_sensitive (!_rr_selection.processors.empty());
2080         cut_action->set_sensitive (sensitive && can_cut ());
2081         copy_action->set_sensitive (sensitive);
2082         delete_action->set_sensitive (sensitive || stub_processor_selected ());
2083
2084         edit_action->set_sensitive (one_processor_can_be_edited ());
2085         edit_generic_action->set_sensitive (one_processor_can_be_edited ());
2086
2087         boost::shared_ptr<PluginInsert> pi;
2088         if (single_selection) {
2089                 pi = boost::dynamic_pointer_cast<PluginInsert> (single_selection->processor ());
2090         }
2091
2092         manage_pins_action->set_sensitive (pi != 0);
2093
2094         /* allow editing with an Ardour-generated UI for plugin inserts with editors */
2095         edit_action->set_sensitive (pi && pi->plugin()->has_editor ());
2096
2097         /* disallow rename for multiple selections, for plugin inserts and for the fader */
2098         rename_action->set_sensitive (single_selection
2099                         && !pi
2100                         && !boost::dynamic_pointer_cast<Amp> (single_selection->processor ())
2101                         && !boost::dynamic_pointer_cast<UnknownProcessor> (single_selection->processor ()));
2102
2103         processor_menu->popup (1, arg);
2104
2105         /* Add a placeholder gap to the processor list to indicate where a processor would be
2106            inserted were one chosen from the menu.
2107         */
2108         int x, y;
2109         processor_display.get_pointer (x, y);
2110         _placement = processor_display.add_placeholder (y);
2111
2112         if (_visible_prefader_processors == 0 && _placement > 0) {
2113                 --_placement;
2114         }
2115 }
2116
2117 bool
2118 ProcessorBox::enter_notify (GdkEventCrossing*)
2119 {
2120         processor_display.grab_focus ();
2121         _current_processor_box = this;
2122         return false;
2123 }
2124
2125 bool
2126 ProcessorBox::leave_notify (GdkEventCrossing* ev)
2127 {
2128         if (ev->detail == GDK_NOTIFY_INFERIOR) {
2129                 return false;
2130         }
2131
2132         Widget* top = get_toplevel();
2133
2134         if (top->is_toplevel()) {
2135                 Window* win = dynamic_cast<Window*> (top);
2136                 gtk_window_set_focus (win->gobj(), 0);
2137         }
2138
2139         return false;
2140 }
2141
2142 bool
2143 ProcessorBox::processor_operation (ProcessorOperation op)
2144 {
2145         ProcSelection targets;
2146
2147         get_selected_processors (targets);
2148
2149 /*      if (targets.empty()) {
2150
2151                 int x, y;
2152                 processor_display.get_pointer (x, y);
2153
2154                 pair<ProcessorEntry *, double> const pointer = processor_display.get_child_at_position (y);
2155
2156                 if (pointer.first && pointer.first->processor()) {
2157                         targets.push_back (pointer.first->processor ());
2158                 }
2159         }
2160 */
2161
2162         if ((op == ProcessorsDelete) && targets.empty()) {
2163                 return false;  //nothing to delete.  return false so the editor-mixer, because the user was probably intending to delete something in the editor
2164         }
2165
2166         switch (op) {
2167         case ProcessorsSelectAll:
2168                 processor_display.select_all ();
2169                 break;
2170
2171         case ProcessorsSelectNone:
2172                 processor_display.select_none ();
2173                 break;
2174
2175         case ProcessorsCopy:
2176                 copy_processors (targets);
2177                 break;
2178
2179         case ProcessorsCut:
2180                 cut_processors (targets);
2181                 break;
2182
2183         case ProcessorsPaste:
2184                 // some processors are not selectable (e.g fader, meter), target is empty.
2185                 if (targets.empty() && _placement >= 0) {
2186                         assert (_route);
2187                         boost::shared_ptr<Processor> proc = _route->before_processor_for_index (_placement);
2188                         if (proc) {
2189                                 targets.push_back (proc);
2190                         }
2191                 }
2192                 if (targets.empty()) {
2193                         paste_processors ();
2194                 } else {
2195                         paste_processors (targets.front());
2196                 }
2197                 break;
2198
2199         case ProcessorsDelete:
2200                 delete_processors (targets);
2201                 break;
2202
2203         case ProcessorsToggleActive:
2204                 for (ProcSelection::iterator i = targets.begin(); i != targets.end(); ++i) {
2205                         if ((*i)->active()) {
2206                                 (*i)->deactivate ();
2207                         } else {
2208                                 (*i)->activate ();
2209                         }
2210                 }
2211                 break;
2212
2213         case ProcessorsAB:
2214                 ab_plugins ();
2215                 break;
2216
2217         default:
2218                 break;
2219         }
2220
2221         return true;
2222 }
2223
2224 ProcessorWindowProxy*
2225 ProcessorBox::find_window_proxy (boost::shared_ptr<Processor> processor) const
2226 {
2227         return  processor->window_proxy();
2228 }
2229
2230
2231 bool
2232 ProcessorBox::processor_button_press_event (GdkEventButton *ev, ProcessorEntry* child)
2233 {
2234         boost::shared_ptr<Processor> processor;
2235         if (child) {
2236                 processor = child->processor ();
2237         }
2238
2239         int ret = false;
2240         bool selected = processor_display.selected (child);
2241
2242         if (processor && (Keyboard::is_edit_event (ev) || (ev->button == 1 && ev->type == GDK_2BUTTON_PRESS))) {
2243
2244                 if (_session->engine().connected()) {
2245                         /* XXX giving an error message here is hard, because we may be in the midst of a button press */
2246
2247                         if (!one_processor_can_be_edited ()) {
2248                                 return true;
2249                         }
2250
2251                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier)) {
2252                                 generic_edit_processor (processor);
2253                         } else {
2254                                 edit_processor (processor);
2255                         }
2256                 }
2257
2258                 ret = true;
2259
2260         } else if (Keyboard::is_context_menu_event (ev)) {
2261
2262                 show_processor_menu (ev->time);
2263
2264                 ret = true;
2265
2266         } else if (processor && ev->button == 1 && selected) {
2267
2268                 // this is purely informational but necessary for route params UI
2269                 ProcessorSelected (processor); // emit
2270
2271         } else if (!processor && ev->button == 1 && ev->type == GDK_2BUTTON_PRESS) {
2272
2273                 choose_plugin ();
2274                 _get_plugin_selector()->show_manager ();
2275         }
2276
2277         return ret;
2278 }
2279
2280 bool
2281 ProcessorBox::processor_button_release_event (GdkEventButton *ev, ProcessorEntry* child)
2282 {
2283         boost::shared_ptr<Processor> processor;
2284         if (child) {
2285                 processor = child->processor ();
2286         }
2287
2288         if (processor && Keyboard::is_delete_event (ev)) {
2289
2290                 Glib::signal_idle().connect (sigc::bind (
2291                                 sigc::mem_fun(*this, &ProcessorBox::idle_delete_processor),
2292                                 boost::weak_ptr<Processor>(processor)));
2293
2294         } else if (processor && Keyboard::is_button2_event (ev)
2295 #ifndef __APPLE__
2296                    && (Keyboard::no_modifier_keys_pressed (ev) && ((ev->state & Gdk::BUTTON2_MASK) == Gdk::BUTTON2_MASK))
2297 #endif
2298                 ) {
2299
2300                 /* button2-click with no/appropriate modifiers */
2301
2302                 if (processor->active()) {
2303                         processor->deactivate ();
2304                 } else {
2305                         processor->activate ();
2306                 }
2307         }
2308
2309         return false;
2310 }
2311
2312 Menu *
2313 ProcessorBox::build_processor_menu ()
2314 {
2315         processor_menu = dynamic_cast<Gtk::Menu*>(ActionManager::get_widget("/ProcessorMenu") );
2316         processor_menu->set_name ("ArdourContextMenu");
2317         return processor_menu;
2318 }
2319
2320 void
2321 ProcessorBox::select_all_processors ()
2322 {
2323         processor_display.select_all ();
2324 }
2325
2326 void
2327 ProcessorBox::deselect_all_processors ()
2328 {
2329         processor_display.select_none ();
2330 }
2331
2332 void
2333 ProcessorBox::choose_plugin ()
2334 {
2335         _get_plugin_selector()->set_interested_object (*this);
2336 }
2337
2338 /** @return true if an error occurred, otherwise false */
2339 bool
2340 ProcessorBox::choose_lua ()
2341 {
2342         LuaScriptInfoPtr spi;
2343
2344         ScriptSelector ss (_("Add Lua DSP Processor"), LuaScriptInfo::DSP);
2345         switch (ss.run ()) {
2346                 case Gtk::RESPONSE_ACCEPT:
2347                         spi = ss.script();
2348                         break;
2349                 default:
2350                         return true;
2351         }
2352         ss.hide ();
2353
2354         PluginPtr p;
2355         try {
2356                 LuaPluginInfoPtr lpi (new LuaPluginInfo(spi));
2357                 p = (lpi->load (*_session));
2358         } catch (...) {
2359                 string msg = _(
2360                                 "Failed to instantiate Lua DSP Processor,\n"
2361                                 "probably because the script is invalid (no dsp function).");
2362                 MessageDialog am (msg);
2363                 am.run ();
2364                 return true;
2365         }
2366
2367         boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
2368
2369         Route::ProcessorStreams err_streams;
2370         if (_route->add_processor_by_index (processor, _placement, &err_streams, Config->get_new_plugins_active ())) {
2371                 string msg = _(
2372                                 "Failed to add Lua DSP Processor at the given position,\n"
2373                                 "probably because the I/O configuration of the plugins\n"
2374                                 "could not match the configuration of this track.");
2375                 MessageDialog am (msg);
2376                 am.run ();
2377         }
2378         return false;
2379 }
2380
2381 /** @return true if an error occurred, otherwise false */
2382 bool
2383 ProcessorBox::use_plugins (const SelectedPlugins& plugins)
2384 {
2385         for (SelectedPlugins::const_iterator p = plugins.begin(); p != plugins.end(); ++p) {
2386
2387                 boost::shared_ptr<Processor> processor (new PluginInsert (*_session, *p));
2388
2389                 Route::ProcessorStreams err_streams;
2390
2391                 if (_route->add_processor_by_index (processor, _placement, &err_streams, Config->get_new_plugins_active ())) {
2392                         weird_plugin_dialog (**p, err_streams);
2393                         return true;
2394                         // XXX SHAREDPTR delete plugin here .. do we even need to care?
2395                 } else if (plugins.size() == 1 && UIConfiguration::instance().get_open_gui_after_adding_plugin()) {
2396                         if (boost::dynamic_pointer_cast<PluginInsert>(processor)->plugin()->has_inline_display() && UIConfiguration::instance().get_prefer_inline_over_gui()) {
2397                                 ;
2398                         } else if (_session->engine().connected () && processor_can_be_edited (processor)) {
2399                                 if ((*p)->has_editor ()) {
2400                                         edit_processor (processor);
2401                                 } else {
2402                                         generic_edit_processor (processor);
2403                                 }
2404                         }
2405                 }
2406         }
2407
2408         return false;
2409 }
2410
2411 void
2412 ProcessorBox::weird_plugin_dialog (Plugin& p, Route::ProcessorStreams streams)
2413 {
2414         ArdourDialog dialog (_("Plugin Incompatibility"));
2415         Label label;
2416
2417         string text = string_compose(_("You attempted to add the plugin \"%1\" in slot %2.\n"),
2418                         p.name(), streams.index);
2419
2420         bool has_midi  = streams.count.n_midi() > 0 || p.get_info()->n_inputs.n_midi() > 0;
2421         bool has_audio = streams.count.n_audio() > 0 || p.get_info()->n_inputs.n_audio() > 0;
2422
2423         text += _("\nThis plugin has:\n");
2424         if (has_midi) {
2425                 uint32_t const n = p.get_info()->n_inputs.n_midi ();
2426                 text += string_compose (ngettext ("\t%1 MIDI input\n", "\t%1 MIDI inputs\n", n), n);
2427         }
2428         if (has_audio) {
2429                 uint32_t const n = p.get_info()->n_inputs.n_audio ();
2430                 text += string_compose (ngettext ("\t%1 audio input\n", "\t%1 audio inputs\n", n), n);
2431         }
2432
2433         text += _("\nbut at the insertion point, there are:\n");
2434         if (has_midi) {
2435                 uint32_t const n = streams.count.n_midi ();
2436                 text += string_compose (ngettext ("\t%1 MIDI channel\n", "\t%1 MIDI channels\n", n), n);
2437         }
2438         if (has_audio) {
2439                 uint32_t const n = streams.count.n_audio ();
2440                 text += string_compose (ngettext ("\t%1 audio channel\n", "\t%1 audio channels\n", n), n);
2441         }
2442
2443         text += string_compose (_("\n%1 is unable to insert this plugin here.\n"), PROGRAM_NAME);
2444         label.set_text(text);
2445
2446         dialog.get_vbox()->pack_start (label);
2447         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
2448
2449         dialog.set_name (X_("PluginIODialog"));
2450         dialog.set_modal (true);
2451         dialog.show_all ();
2452
2453         dialog.run ();
2454 }
2455
2456 void
2457 ProcessorBox::choose_insert ()
2458 {
2459         boost::shared_ptr<Processor> processor (new PortInsert (*_session, _route->pannable(), _route->mute_master()));
2460         _route->add_processor_by_index (processor, _placement);
2461 }
2462
2463 /* Caller must not hold process lock */
2464 void
2465 ProcessorBox::choose_send ()
2466 {
2467         boost::shared_ptr<Pannable> sendpan(new Pannable (*_session));
2468         boost::shared_ptr<Send> send (new Send (*_session, sendpan, _route->mute_master()));
2469
2470         /* make an educated guess at the initial number of outputs for the send */
2471         ChanCount outs = (_session->master_out())
2472                         ? _session->master_out()->n_outputs()
2473                         : _route->n_outputs();
2474
2475         /* XXX need processor lock on route */
2476         try {
2477                 Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock());
2478                 send->output()->ensure_io (outs, false, this);
2479         } catch (AudioEngine::PortRegistrationFailure& err) {
2480                 error << string_compose (_("Cannot set up new send: %1"), err.what()) << endmsg;
2481                 return;
2482         }
2483
2484         /* let the user adjust the IO setup before creation.
2485
2486            Note: this dialog is NOT modal - we just leave it to run and it will
2487            return when its Finished signal is emitted - typically when the window
2488            is closed.
2489          */
2490
2491         IOSelectorWindow *ios = new IOSelectorWindow (_session, send->output(), true);
2492         ios->show ();
2493
2494         /* keep a reference to the send so it doesn't get deleted while
2495            the IOSelectorWindow is doing its stuff
2496         */
2497         _processor_being_created = send;
2498
2499         ios->selector().Finished.connect (sigc::bind (
2500                         sigc::mem_fun(*this, &ProcessorBox::send_io_finished),
2501                         boost::weak_ptr<Processor>(send), ios));
2502
2503 }
2504
2505 void
2506 ProcessorBox::send_io_finished (IOSelector::Result r, boost::weak_ptr<Processor> weak_processor, IOSelectorWindow* ios)
2507 {
2508         boost::shared_ptr<Processor> processor (weak_processor.lock());
2509
2510         /* drop our temporary reference to the new send */
2511         _processor_being_created.reset ();
2512
2513         if (!processor) {
2514                 return;
2515         }
2516
2517         switch (r) {
2518         case IOSelector::Cancelled:
2519                 // processor will go away when all shared_ptrs to it vanish
2520                 break;
2521
2522         case IOSelector::Accepted:
2523                 _route->add_processor_by_index (processor, _placement);
2524                 break;
2525         }
2526
2527         delete_when_idle (ios);
2528 }
2529
2530 void
2531 ProcessorBox::return_io_finished (IOSelector::Result r, boost::weak_ptr<Processor> weak_processor, IOSelectorWindow* ios)
2532 {
2533         boost::shared_ptr<Processor> processor (weak_processor.lock());
2534
2535         /* drop our temporary reference to the new return */
2536         _processor_being_created.reset ();
2537
2538         if (!processor) {
2539                 return;
2540         }
2541
2542         switch (r) {
2543         case IOSelector::Cancelled:
2544                 // processor will go away when all shared_ptrs to it vanish
2545                 break;
2546
2547         case IOSelector::Accepted:
2548                 _route->add_processor_by_index (processor, _placement);
2549                 break;
2550         }
2551
2552         delete_when_idle (ios);
2553 }
2554
2555 void
2556 ProcessorBox::choose_aux (boost::weak_ptr<Route> wr)
2557 {
2558         if (!_route) {
2559                 return;
2560         }
2561
2562         boost::shared_ptr<Route> target = wr.lock();
2563
2564         if (!target) {
2565                 return;
2566         }
2567
2568         _session->add_internal_send (target, _placement, _route);
2569 }
2570
2571 void
2572 ProcessorBox::route_processors_changed (RouteProcessorChange c)
2573 {
2574         if (c.type == RouteProcessorChange::MeterPointChange && c.meter_visibly_changed == false) {
2575                 /* the meter has moved, but it was and still is invisible to the user, so nothing to do */
2576                 return;
2577         }
2578
2579         redisplay_processors ();
2580 }
2581
2582 void
2583 ProcessorBox::redisplay_processors ()
2584 {
2585         ENSURE_GUI_THREAD (*this, &ProcessorBox::redisplay_processors);
2586         bool     fader_seen;
2587
2588         if (no_processor_redisplay) {
2589                 return;
2590         }
2591
2592         processor_display.clear ();
2593
2594         _visible_prefader_processors = 0;
2595         fader_seen = false;
2596
2597         _route->foreach_processor (sigc::bind (sigc::mem_fun (*this, &ProcessorBox::help_count_visible_prefader_processors),
2598                                                &_visible_prefader_processors, &fader_seen));
2599
2600         _route->foreach_processor (sigc::mem_fun (*this, &ProcessorBox::add_processor_to_display));
2601         _route->foreach_processor (sigc::mem_fun (*this, &ProcessorBox::maybe_add_processor_to_ui_list));
2602         _route->foreach_processor (sigc::mem_fun (*this, &ProcessorBox::maybe_add_processor_pin_mgr));
2603
2604         setup_entry_positions ();
2605 }
2606
2607 /** Add a ProcessorWindowProxy for a processor to our list, if that processor does
2608  *  not already have one.
2609  */
2610 void
2611 ProcessorBox::maybe_add_processor_to_ui_list (boost::weak_ptr<Processor> w)
2612 {
2613         boost::shared_ptr<Processor> p = w.lock ();
2614         if (!p) {
2615                 return;
2616         }
2617         if (p->window_proxy()) {
2618                 return;
2619         }
2620
2621         /* not on the list; add it */
2622
2623         string loc;
2624 #if 0 // is this still needed? Why?
2625         if (_parent_strip) {
2626                 if (_parent_strip->mixer_owned()) {
2627                         loc = X_("M");
2628                 } else {
2629                         loc = X_("R");
2630                 }
2631         } else {
2632                 loc = X_("P");
2633         }
2634 #else
2635         loc = X_("P");
2636 #endif
2637
2638         ProcessorWindowProxy* wp = new ProcessorWindowProxy (
2639                 string_compose ("%1-%2-%3", loc, _route->id(), p->id()),
2640                 this,
2641                 w);
2642
2643         const XMLNode* ui_xml = _session->extra_xml (X_("UI"));
2644
2645         if (ui_xml) {
2646                 wp->set_state (*ui_xml, 0);
2647         }
2648
2649         void* existing_ui = p->get_ui ();
2650
2651         if (existing_ui) {
2652                 wp->use_window (*(reinterpret_cast<Gtk::Window*>(existing_ui)));
2653         }
2654
2655         p->set_window_proxy (wp);
2656         WM::Manager::instance().register_window (wp);
2657 }
2658
2659 void
2660 ProcessorBox::maybe_add_processor_pin_mgr (boost::weak_ptr<Processor> w)
2661 {
2662         boost::shared_ptr<Processor> p = w.lock ();
2663         if (!p || p->pinmgr_proxy ()) {
2664                 return;
2665         }
2666
2667         PluginPinWindowProxy* wp = new PluginPinWindowProxy (
2668                         string_compose ("PM-%2-%3", _route->id(), p->id()), w);
2669         wp->set_session (_session);
2670
2671         const XMLNode* ui_xml = _session->extra_xml (X_("UI"));
2672         if (ui_xml) {
2673                 wp->set_state (*ui_xml, 0);
2674         }
2675
2676         void* existing_ui = p->get_ui ();
2677
2678         if (existing_ui) {
2679                 wp->use_window (*(reinterpret_cast<Gtk::Window*>(existing_ui)));
2680         }
2681
2682         p->set_pingmgr_proxy (wp);
2683         WM::Manager::instance().register_window (wp);
2684 }
2685 void
2686 ProcessorBox::help_count_visible_prefader_processors (boost::weak_ptr<Processor> p, uint32_t* cnt, bool* amp_seen)
2687 {
2688         boost::shared_ptr<Processor> processor (p.lock ());
2689
2690         if (processor && ( processor->display_to_user()
2691 #ifndef NDEBUG
2692                             || show_all_processors
2693 #endif
2694                          )
2695            ) {
2696
2697                 if (boost::dynamic_pointer_cast<Amp>(processor) &&
2698                     boost::dynamic_pointer_cast<Amp>(processor)->gain_control()->parameter().type() == GainAutomation) {
2699                         *amp_seen = true;
2700                 } else {
2701                         if (!*amp_seen) {
2702                                 (*cnt)++;
2703                         }
2704                 }
2705         }
2706 }
2707
2708 void
2709 ProcessorBox::add_processor_to_display (boost::weak_ptr<Processor> p)
2710 {
2711         boost::shared_ptr<Processor> processor (p.lock ());
2712
2713         if (!processor || ( !processor->display_to_user()
2714 #ifndef NDEBUG
2715                             && !show_all_processors
2716 #endif
2717                           )
2718            ) {
2719                 return;
2720         }
2721
2722         boost::shared_ptr<PluginInsert> plugin_insert = boost::dynamic_pointer_cast<PluginInsert> (processor);
2723
2724         ProcessorEntry* e = 0;
2725         if (plugin_insert) {
2726                 e = new PluginInsertProcessorEntry (this, plugin_insert, _width);
2727         } else {
2728                 e = new ProcessorEntry (this, processor, _width);
2729         }
2730
2731         boost::shared_ptr<Send> send = boost::dynamic_pointer_cast<Send> (processor);
2732         boost::shared_ptr<PortInsert> ext = boost::dynamic_pointer_cast<PortInsert> (processor);
2733         boost::shared_ptr<UnknownProcessor> stub = boost::dynamic_pointer_cast<UnknownProcessor> (processor);
2734
2735         //faders and meters are not deletable, copy/paste-able, so they shouldn't be selectable
2736         if (!send && !plugin_insert && !ext && !stub)
2737                 e->set_selectable(false);
2738
2739         bool mark_send_visible = false;
2740         if (send && _parent_strip) {
2741                 /* show controls of new sends by default */
2742                 GUIObjectState& st = _parent_strip->gui_object_state ();
2743                 XMLNode* strip = st.get_or_add_node (_parent_strip->state_id ());
2744                 assert (strip);
2745                 /* check if state exists, if not it must be a new send */
2746                 if (!st.get_node(strip, e->state_id())) {
2747                         mark_send_visible = true;
2748                 }
2749         }
2750
2751         /* Set up this entry's state from the GUIObjectState */
2752         XMLNode* proc = entry_gui_object_state (e);
2753         if (proc) {
2754                 e->set_control_state (proc);
2755         }
2756
2757         if (mark_send_visible) {
2758                 e->show_all_controls ();
2759         }
2760
2761         if (plugin_insert
2762 #ifdef MIXBUS
2763                         && !plugin_insert->plugin(0)->is_channelstrip()
2764 #endif
2765                  )
2766         {
2767                 processor_display.add_child (e, drag_targets());
2768         } else {
2769                 processor_display.add_child (e, drag_targets_noplugin());
2770         }
2771 }
2772
2773 void
2774 ProcessorBox::reordered ()
2775 {
2776         compute_processor_sort_keys ();
2777         setup_entry_positions ();
2778 }
2779
2780 void
2781 ProcessorBox::setup_routing_feeds ()
2782 {
2783         list<ProcessorEntry*> children = processor_display.children ();
2784         /* first set the i/o maps for every processor */
2785         list<ProcessorEntry*>::iterator prev = children.begin();
2786
2787         for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
2788                 boost::shared_ptr<ARDOUR::Processor> p = (*i)->processor();
2789                 boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (p);
2790
2791                 list<ProcessorEntry*>::iterator next = i;
2792                 next++;
2793
2794                 if (pi) {
2795                         ChanCount sinks = pi->natural_input_streams ();
2796                         ChanCount sources = pi->natural_output_streams ();
2797                         uint32_t count = pi->get_count ();
2798                         ChanCount in, out;
2799                         pi->configured_io (in, out);
2800
2801                         ChanCount midi_thru;
2802                         ChanCount midi_bypass;
2803                         ChanMapping input_map (pi->input_map ());
2804                         if (pi->has_midi_thru ()) {
2805                                  midi_thru.set(DataType::MIDI, 1);
2806                                  input_map.set (DataType::MIDI, 0, 0);
2807                         }
2808                         if (pi->has_midi_bypass ()) {
2809                                  midi_bypass.set(DataType::MIDI, 1);
2810                         }
2811
2812                         (*i)->input_icon.set_ports (sinks * count + midi_thru);
2813                         (*i)->output_icon.set_ports (sources * count + midi_bypass);
2814
2815                         (*i)->routing_icon.set (
2816                                         in, out,
2817                                         sinks * count + midi_thru,
2818                                         sources * count + midi_bypass,
2819                                         input_map,
2820                                         pi->output_map (),
2821                                         pi->thru_map ());
2822
2823                         if (next != children.end()) {
2824                                 (*next)->routing_icon.set_fed_by (out, sources * count + midi_bypass,
2825                                                 pi->output_map (), pi->thru_map ());
2826                         }
2827
2828                         if (prev != i) {
2829                                 (*prev)->routing_icon.set_feeding (in, sinks * count + midi_thru,
2830                                                 pi->input_map (), pi->thru_map ());
2831                         }
2832
2833                 } else {
2834                         (*i)->input_icon.set_ports (p->input_streams());
2835                         (*i)->output_icon.set_ports (p->output_streams());
2836                         ChanMapping inmap (p->input_streams ());
2837                         ChanMapping outmap (p->input_streams ());
2838                         ChanMapping thrumap;
2839                         (*i)->routing_icon.set (
2840                                         p->input_streams(),
2841                                         p->output_streams(),
2842                                         p->input_streams(),
2843                                         p->output_streams(),
2844                                         inmap, outmap, thrumap);
2845
2846                         if (next != children.end()) {
2847                                 (*next)->routing_icon.set_fed_by (
2848                                                 p->output_streams(),
2849                                                 p->output_streams(),
2850                                                 outmap, thrumap);
2851                         }
2852                         if (prev != i) {
2853                                 (*prev)->routing_icon.set_feeding (
2854                                                 p->input_streams(),
2855                                                 p->output_streams(),
2856                                                 inmap, thrumap);
2857                         }
2858                 }
2859
2860                 if (i == children.begin()) {
2861                         (*i)->routing_icon.unset_fed_by ();
2862                 }
2863                 prev = i;
2864         }
2865
2866         /* now set which icons need to be displayed */
2867         for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
2868                 (*i)->output_routing_icon.copy_state ((*i)->routing_icon);
2869
2870                 if ((*i)->routing_icon.in_identity ()) {
2871                         (*i)->routing_icon.hide();
2872                         if (i == children.begin()) {
2873                                 (*i)->input_icon.show();
2874                         } else {
2875                                 (*i)->input_icon.hide();
2876                         }
2877                 } else {
2878                         (*i)->routing_icon.show();
2879                         (*i)->routing_icon.queue_draw();
2880                         (*i)->input_icon.show();
2881                 }
2882
2883                 list<ProcessorEntry*>::iterator next = i;
2884                 if (++next == children.end()) {
2885                         // last processor in the chain
2886                         (*i)->output_routing_icon.set_terminal(true);
2887                         (*i)->output_routing_icon.unset_feeding ();
2888                         if ((*i)->routing_icon.out_identity ()) {
2889                                 (*i)->output_routing_icon.hide();
2890                         } else {
2891                                 (*i)->output_routing_icon.show();
2892                                 (*i)->output_routing_icon.queue_draw();
2893                         }
2894                 } else {
2895                         (*i)->output_routing_icon.set_terminal(false);
2896                         if (!(*i)->routing_icon.out_identity () && (*i)->routing_icon.can_coalesce ()){
2897                                 (*i)->output_routing_icon.hide();
2898                         } else if (!(*i)->routing_icon.out_identity ()) {
2899                                 (*i)->output_routing_icon.show();
2900                                 (*i)->output_routing_icon.queue_draw();
2901                         } else {
2902                                 (*i)->output_routing_icon.hide();
2903                         }
2904                 }
2905         }
2906 }
2907
2908 void
2909 ProcessorBox::setup_entry_positions ()
2910 {
2911         list<ProcessorEntry*> children = processor_display.children ();
2912         bool pre_fader = true;
2913
2914         uint32_t num = 0;
2915         for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
2916                 if (boost::dynamic_pointer_cast<Amp>((*i)->processor()) &&
2917                     boost::dynamic_pointer_cast<Amp>((*i)->processor())->gain_control()->parameter().type() == GainAutomation) {
2918                         pre_fader = false;
2919                         (*i)->set_position (ProcessorEntry::Fader, num++);
2920                 } else {
2921                         if (pre_fader) {
2922                                 (*i)->set_position (ProcessorEntry::PreFader, num++);
2923                         } else {
2924                                 (*i)->set_position (ProcessorEntry::PostFader, num++);
2925                         }
2926                 }
2927         }
2928         setup_routing_feeds ();
2929 }
2930
2931 void
2932 ProcessorBox::compute_processor_sort_keys ()
2933 {
2934         list<ProcessorEntry*> children = processor_display.children ();
2935         Route::ProcessorList our_processors;
2936
2937         for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
2938                 if ((*i)->processor()) {
2939                         our_processors.push_back ((*i)->processor ());
2940                 }
2941         }
2942
2943         if (_route->reorder_processors (our_processors)) {
2944                 /* Reorder failed, so report this to the user.  As far as I can see this must be done
2945                    in an idle handler: it seems that the redisplay_processors() that happens below destroys
2946                    widgets that were involved in the drag-and-drop on the processor list, which causes problems
2947                    when the drag is torn down after this handler function is finished.
2948                 */
2949                 Glib::signal_idle().connect_once (sigc::mem_fun (*this, &ProcessorBox::report_failed_reorder));
2950         }
2951 }
2952
2953 void
2954 ProcessorBox::report_failed_reorder ()
2955 {
2956         /* reorder failed, so redisplay */
2957
2958         redisplay_processors ();
2959
2960         /* now tell them about the problem */
2961
2962         ArdourDialog dialog (_("Plugin Incompatibility"));
2963         Label label;
2964
2965         label.set_text (_("\
2966 You cannot reorder these plugins/sends/inserts\n\
2967 in that way because the inputs and\n\
2968 outputs will not work correctly."));
2969
2970         dialog.get_vbox()->set_border_width (12);
2971         dialog.get_vbox()->pack_start (label);
2972         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
2973
2974         dialog.set_name (X_("PluginIODialog"));
2975         dialog.set_modal (true);
2976         dialog.show_all ();
2977
2978         dialog.run ();
2979 }
2980
2981 void
2982 ProcessorBox::rename_processors ()
2983 {
2984         ProcSelection to_be_renamed;
2985
2986         get_selected_processors (to_be_renamed);
2987
2988         if (to_be_renamed.empty()) {
2989                 return;
2990         }
2991
2992         for (ProcSelection::iterator i = to_be_renamed.begin(); i != to_be_renamed.end(); ++i) {
2993                 rename_processor (*i);
2994         }
2995 }
2996
2997 bool
2998 ProcessorBox::can_cut () const
2999 {
3000         vector<boost::shared_ptr<Processor> > sel;
3001
3002         get_selected_processors (sel);
3003
3004         /* cut_processors () does not cut inserts */
3005
3006         for (vector<boost::shared_ptr<Processor> >::const_iterator i = sel.begin (); i != sel.end (); ++i) {
3007
3008                 if (boost::dynamic_pointer_cast<PluginInsert>((*i)) != 0 ||
3009                     (boost::dynamic_pointer_cast<Send>((*i)) != 0) ||
3010                     (boost::dynamic_pointer_cast<Return>((*i)) != 0)) {
3011                         return true;
3012                 }
3013         }
3014
3015         return false;
3016 }
3017
3018 bool
3019 ProcessorBox::stub_processor_selected () const
3020 {
3021         vector<boost::shared_ptr<Processor> > sel;
3022
3023         get_selected_processors (sel);
3024
3025         for (vector<boost::shared_ptr<Processor> >::const_iterator i = sel.begin (); i != sel.end (); ++i) {
3026                 if (boost::dynamic_pointer_cast<UnknownProcessor>((*i)) != 0) {
3027                         return true;
3028                 }
3029         }
3030
3031         return false;
3032 }
3033
3034 void
3035 ProcessorBox::cut_processors (const ProcSelection& to_be_removed)
3036 {
3037         if (to_be_removed.empty()) {
3038                 return;
3039         }
3040
3041         XMLNode* node = new XMLNode (X_("cut"));
3042         Route::ProcessorList to_cut;
3043
3044         no_processor_redisplay = true;
3045         for (ProcSelection::const_iterator i = to_be_removed.begin(); i != to_be_removed.end(); ++i) {
3046                 // Cut only plugins, sends and returns
3047                 if (boost::dynamic_pointer_cast<PluginInsert>((*i)) != 0 ||
3048                     (boost::dynamic_pointer_cast<Send>((*i)) != 0) ||
3049                     (boost::dynamic_pointer_cast<Return>((*i)) != 0)) {
3050
3051                         Window* w = get_processor_ui (*i);
3052
3053                         if (w) {
3054                                 w->hide ();
3055                         }
3056
3057                         XMLNode& child ((*i)->get_state());
3058                         node->add_child_nocopy (child);
3059                         to_cut.push_back (*i);
3060                 }
3061         }
3062
3063         if (_route->remove_processors (to_cut) != 0) {
3064                 delete node;
3065                 no_processor_redisplay = false;
3066                 return;
3067         }
3068
3069         _rr_selection.set (node);
3070
3071         no_processor_redisplay = false;
3072         redisplay_processors ();
3073 }
3074
3075 void
3076 ProcessorBox::copy_processors (const ProcSelection& to_be_copied)
3077 {
3078         if (to_be_copied.empty()) {
3079                 return;
3080         }
3081
3082         XMLNode* node = new XMLNode (X_("copy"));
3083
3084         for (ProcSelection::const_iterator i = to_be_copied.begin(); i != to_be_copied.end(); ++i) {
3085                 // Copy only plugins, sends, returns
3086                 if (boost::dynamic_pointer_cast<PluginInsert>((*i)) != 0 ||
3087                     (boost::dynamic_pointer_cast<Send>((*i)) != 0) ||
3088                     (boost::dynamic_pointer_cast<Return>((*i)) != 0)) {
3089                         node->add_child_nocopy ((*i)->get_state());
3090                 }
3091         }
3092
3093         _rr_selection.set (node);
3094 }
3095
3096 void
3097 ProcessorBox::delete_processors (const ProcSelection& targets)
3098 {
3099         if (targets.empty()) {
3100                 return;
3101         }
3102
3103         no_processor_redisplay = true;
3104
3105         for (ProcSelection::const_iterator i = targets.begin(); i != targets.end(); ++i) {
3106
3107                 Window* w = get_processor_ui (*i);
3108
3109                 if (w) {
3110                         w->hide ();
3111                 }
3112
3113                 _route->remove_processor(*i);
3114         }
3115
3116         no_processor_redisplay = false;
3117         redisplay_processors ();
3118 }
3119
3120 void
3121 ProcessorBox::delete_dragged_processors (const list<boost::shared_ptr<Processor> >& procs)
3122 {
3123         list<boost::shared_ptr<Processor> >::const_iterator x;
3124
3125         no_processor_redisplay = true;
3126         for (x = procs.begin(); x != procs.end(); ++x) {
3127
3128                 Window* w = get_processor_ui (*x);
3129
3130                 if (w) {
3131                         w->hide ();
3132                 }
3133
3134                 _route->remove_processor(*x);
3135         }
3136
3137         no_processor_redisplay = false;
3138         redisplay_processors ();
3139 }
3140
3141 gint
3142 ProcessorBox::idle_delete_processor (boost::weak_ptr<Processor> weak_processor)
3143 {
3144         boost::shared_ptr<Processor> processor (weak_processor.lock());
3145
3146         if (!processor) {
3147                 return false;
3148         }
3149
3150         /* NOT copied to _mixer.selection() */
3151
3152         no_processor_redisplay = true;
3153         _route->remove_processor (processor);
3154         no_processor_redisplay = false;
3155         redisplay_processors ();
3156
3157         return false;
3158 }
3159
3160 void
3161 ProcessorBox::rename_processor (boost::shared_ptr<Processor> processor)
3162 {
3163         ArdourPrompter name_prompter (true);
3164         string result;
3165         name_prompter.set_title (_("Rename Processor"));
3166         name_prompter.set_prompt (_("New name:"));
3167         name_prompter.set_initial_text (processor->name());
3168         name_prompter.add_button (_("Rename"), Gtk::RESPONSE_ACCEPT);
3169         name_prompter.set_response_sensitive (Gtk::RESPONSE_ACCEPT, false);
3170         name_prompter.show_all ();
3171
3172         switch (name_prompter.run ()) {
3173
3174         case Gtk::RESPONSE_ACCEPT:
3175                 name_prompter.get_result (result);
3176                 if (result.length()) {
3177
3178                        int tries = 0;
3179                        string test = result;
3180
3181                        while (tries < 100) {
3182                                if (_session->io_name_is_legal (test)) {
3183                                        result = test;
3184                                        break;
3185                                }
3186                                tries++;
3187
3188                                test = string_compose ("%1-%2", result, tries);
3189                        }
3190
3191                        if (tries < 100) {
3192                                processor->set_name (result);
3193                        } else {
3194                                /* unlikely! */
3195                                ARDOUR_UI::instance()->popup_error
3196                                        (string_compose (_("At least 100 IO objects exist with a name like %1 - name not changed"), result));
3197                        }
3198                 }
3199                 break;
3200         }
3201
3202         return;
3203 }
3204
3205 void
3206 ProcessorBox::paste_processors ()
3207 {
3208         if (_rr_selection.processors.empty()) {
3209                 return;
3210         }
3211
3212         paste_processor_state (_rr_selection.processors.get_node().children(), boost::shared_ptr<Processor>());
3213 }
3214
3215 void
3216 ProcessorBox::paste_processors (boost::shared_ptr<Processor> before)
3217 {
3218
3219         if (_rr_selection.processors.empty()) {
3220                 return;
3221         }
3222
3223         paste_processor_state (_rr_selection.processors.get_node().children(), before);
3224 }
3225
3226 void
3227 ProcessorBox::paste_processor_state (const XMLNodeList& nlist, boost::shared_ptr<Processor> p)
3228 {
3229         XMLNodeConstIterator niter;
3230         list<boost::shared_ptr<Processor> > copies;
3231
3232         if (nlist.empty()) {
3233                 return;
3234         }
3235
3236         for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
3237
3238                 XMLProperty const * type = (*niter)->property ("type");
3239                 XMLProperty const * role = (*niter)->property ("role");
3240                 assert (type);
3241
3242                 boost::shared_ptr<Processor> p;
3243                 try {
3244                         if (type->value() == "meter" ||
3245                             type->value() == "main-outs" ||
3246                             type->value() == "amp" ||
3247                             type->value() == "intreturn") {
3248                                 /* do not paste meter, main outs, amp or internal returns */
3249                                 continue;
3250
3251                         } else if (type->value() == "intsend") {
3252
3253                                 /* aux sends are OK, but those used for
3254                                  * other purposes, are not.
3255                                  */
3256
3257                                 assert (role);
3258
3259                                 if (role->value() != "Aux") {
3260                                         continue;
3261                                 }
3262
3263                                 boost::shared_ptr<Pannable> sendpan(new Pannable (*_session));
3264                                 XMLNode n (**niter);
3265                                 InternalSend* s = new InternalSend (*_session, sendpan, _route->mute_master(),
3266                                                 _route, boost::shared_ptr<Route>(), Delivery::Aux);
3267
3268                                 IOProcessor::prepare_for_reset (n, s->name());
3269
3270                                 if (s->set_state (n, Stateful::loading_state_version)) {
3271                                         delete s;
3272                                         return;
3273                                 }
3274
3275                                 p.reset (s);
3276
3277                         } else if (type->value() == "send") {
3278
3279                                 boost::shared_ptr<Pannable> sendpan(new Pannable (*_session));
3280                                 XMLNode n (**niter);
3281
3282                                 Send* s = new Send (*_session, _route->pannable(), _route->mute_master());
3283
3284                                 IOProcessor::prepare_for_reset (n, s->name());
3285
3286                                 if (s->set_state (n, Stateful::loading_state_version)) {
3287                                         delete s;
3288                                         return;
3289                                 }
3290
3291                                 p.reset (s);
3292
3293                         } else if (type->value() == "return") {
3294
3295                                 XMLNode n (**niter);
3296                                 Return* r = new Return (*_session);
3297
3298                                 IOProcessor::prepare_for_reset (n, r->name());
3299
3300                                 if (r->set_state (n, Stateful::loading_state_version)) {
3301                                         delete r;
3302                                         return;
3303                                 }
3304
3305                                 p.reset (r);
3306
3307                         } else if (type->value() == "port") {
3308
3309                                 XMLNode n (**niter);
3310                                 PortInsert* pi = new PortInsert (*_session, _route->pannable (), _route->mute_master ());
3311
3312                                 IOProcessor::prepare_for_reset (n, pi->name());
3313
3314                                 if (pi->set_state (n, Stateful::loading_state_version)) {
3315                                         return;
3316                                 }
3317
3318                                 p.reset (pi);
3319                         } else {
3320                                 /* XXX its a bit limiting to assume that everything else
3321                                    is a plugin.
3322                                 */
3323                                 p.reset (new PluginInsert (*_session));
3324                                 /* we can't use RAII Stateful::ForceIDRegeneration
3325                                  * because that'd void copying the state and wrongly bump
3326                                  * the state-version counter.
3327                                  * we need to load the state (incl external files) first and
3328                                  * only then update the ID)
3329                                  */
3330                                 PBD::ID id = p->id();
3331                                 /* strip side-chain state (processor inside processor must be a side-chain)
3332                                  * otherwise we'll end up with duplicate ports-names.
3333                                  * (this needs a better solution which retains connections)
3334                                  * We really would want Stateful::ForceIDRegeneration here :(
3335                                  */
3336                                 XMLNode state (**niter);
3337                                 state.remove_nodes ("Processor");
3338
3339                                 p->set_state (state, Stateful::current_state_version);
3340                                 boost::dynamic_pointer_cast<PluginInsert>(p)->update_id (id);
3341                         }
3342
3343                         copies.push_back (p);
3344                 }
3345
3346                 catch (...) {
3347                         error << _("plugin insert constructor failed") << endmsg;
3348                 }
3349         }
3350
3351         if (copies.empty()) {
3352                 return;
3353         }
3354
3355         if (_route->add_processors (copies, p)) {
3356
3357                 string msg = _(
3358                         "Copying the set of processors on the clipboard failed,\n\
3359 probably because the I/O configuration of the plugins\n\
3360 could not match the configuration of this track.");
3361                 MessageDialog am (msg);
3362                 am.run ();
3363         }
3364 }
3365
3366 void
3367 ProcessorBox::get_selected_processors (ProcSelection& processors) const
3368 {
3369         const list<ProcessorEntry*> selection = processor_display.selection ();
3370         for (list<ProcessorEntry*>::const_iterator i = selection.begin(); i != selection.end(); ++i) {
3371                 processors.push_back ((*i)->processor ());
3372         }
3373 }
3374
3375 void
3376 ProcessorBox::for_selected_processors (void (ProcessorBox::*method)(boost::shared_ptr<Processor>))
3377 {
3378         list<ProcessorEntry*> selection = processor_display.selection ();
3379         for (list<ProcessorEntry*>::iterator i = selection.begin(); i != selection.end(); ++i) {
3380                 (this->*method) ((*i)->processor ());
3381         }
3382 }
3383
3384 void
3385 ProcessorBox::all_visible_processors_active (bool state)
3386 {
3387         _route->all_visible_processors_active (state);
3388 }
3389
3390 void
3391 ProcessorBox::ab_plugins ()
3392 {
3393         _route->ab_plugins (ab_direction);
3394         ab_direction = !ab_direction;
3395 }
3396
3397
3398 void
3399 ProcessorBox::clear_processors ()
3400 {
3401         string prompt;
3402         vector<string> choices;
3403
3404         prompt = string_compose (_("Do you really want to remove all processors from %1?\n"
3405                                    "(this cannot be undone)"), _route->name());
3406
3407         choices.push_back (_("Cancel"));
3408         choices.push_back (_("Yes, remove them all"));
3409
3410         Gtkmm2ext::Choice prompter (_("Remove processors"), prompt, choices);
3411
3412         if (prompter.run () == 1) {
3413                 _route->clear_processors (PreFader);
3414                 _route->clear_processors (PostFader);
3415         }
3416 }
3417
3418 void
3419 ProcessorBox::clear_processors (Placement p)
3420 {
3421         string prompt;
3422         vector<string> choices;
3423
3424         if (p == PreFader) {
3425                 prompt = string_compose (_("Do you really want to remove all pre-fader processors from %1?\n"
3426                                            "(this cannot be undone)"), _route->name());
3427         } else {
3428                 prompt = string_compose (_("Do you really want to remove all post-fader processors from %1?\n"
3429                                            "(this cannot be undone)"), _route->name());
3430         }
3431
3432         choices.push_back (_("Cancel"));
3433         choices.push_back (_("Yes, remove them all"));
3434
3435         Gtkmm2ext::Choice prompter (_("Remove processors"), prompt, choices);
3436
3437         if (prompter.run () == 1) {
3438                 _route->clear_processors (p);
3439         }
3440 }
3441
3442 bool
3443 ProcessorBox::processor_can_be_edited (boost::shared_ptr<Processor> processor)
3444 {
3445         boost::shared_ptr<AudioTrack> at = boost::dynamic_pointer_cast<AudioTrack> (_route);
3446         if (at && at->freeze_state() == AudioTrack::Frozen) {
3447                 return false;
3448         }
3449
3450         if (
3451                 boost::dynamic_pointer_cast<Send> (processor) ||
3452                 boost::dynamic_pointer_cast<Return> (processor) ||
3453                 boost::dynamic_pointer_cast<PluginInsert> (processor) ||
3454                 boost::dynamic_pointer_cast<PortInsert> (processor)
3455                 ) {
3456                 return true;
3457         }
3458
3459         return false;
3460 }
3461
3462 bool
3463 ProcessorBox::one_processor_can_be_edited ()
3464 {
3465         list<ProcessorEntry*> selection = processor_display.selection ();
3466         list<ProcessorEntry*>::iterator i = selection.begin();
3467         while (i != selection.end() && processor_can_be_edited ((*i)->processor()) == false) {
3468                 ++i;
3469         }
3470
3471         return (i != selection.end());
3472 }
3473
3474 Gtk::Window*
3475 ProcessorBox::get_editor_window (boost::shared_ptr<Processor> processor, bool use_custom)
3476 {
3477         boost::shared_ptr<Send> send;
3478         boost::shared_ptr<InternalSend> internal_send;
3479         boost::shared_ptr<Return> retrn;
3480         boost::shared_ptr<PluginInsert> plugin_insert;
3481         boost::shared_ptr<PortInsert> port_insert;
3482         Window* gidget = 0;
3483
3484         /* This method may or may not return a Window, but if it does not it
3485          * will modify the parent mixer strip appearance layout to allow
3486          * "editing" the @param processor that was passed in.
3487          *
3488          * So for example, if the processor is an Amp (gain), the parent strip
3489          * will be forced back into a model where the fader controls the main gain.
3490          * If the processor is a send, then we map the send controls onto the
3491          * strip.
3492          *
3493          * Plugins and others will return a window for control.
3494          */
3495
3496         if (boost::dynamic_pointer_cast<AudioTrack>(_route) != 0) {
3497
3498                 if (boost::dynamic_pointer_cast<AudioTrack> (_route)->freeze_state() == AudioTrack::Frozen) {
3499                         return 0;
3500                 }
3501         }
3502
3503         if (boost::dynamic_pointer_cast<Amp> (processor) && boost::dynamic_pointer_cast<Amp> (processor)->gain_control()->parameter().type() == GainAutomation) {
3504
3505                 if (_parent_strip) {
3506                         _parent_strip->revert_to_default_display ();
3507                 }
3508
3509         } else if ((send = boost::dynamic_pointer_cast<Send> (processor)) != 0) {
3510
3511                 if (!_session->engine().connected()) {
3512                         return 0;
3513                 }
3514
3515                 if (boost::dynamic_pointer_cast<InternalSend> (processor) == 0) {
3516
3517                         gidget = new SendUIWindow (send, _session);
3518                 }
3519
3520         } else if ((retrn = boost::dynamic_pointer_cast<Return> (processor)) != 0) {
3521
3522                 if (boost::dynamic_pointer_cast<InternalReturn> (retrn)) {
3523                         /* no GUI for these */
3524                         return 0;
3525                 }
3526
3527                 if (!_session->engine().connected()) {
3528                         return 0;
3529                 }
3530
3531                 boost::shared_ptr<Return> retrn = boost::dynamic_pointer_cast<Return> (processor);
3532
3533                 ReturnUIWindow *return_ui;
3534                 Window* w = get_processor_ui (retrn);
3535
3536                 if (w == 0) {
3537
3538                         return_ui = new ReturnUIWindow (retrn, _session);
3539                         return_ui->set_title (retrn->name ());
3540                         set_processor_ui (send, return_ui);
3541
3542                 } else {
3543                         return_ui = dynamic_cast<ReturnUIWindow *> (w);
3544                 }
3545
3546                 gidget = return_ui;
3547
3548         } else if ((plugin_insert = boost::dynamic_pointer_cast<PluginInsert> (processor)) != 0) {
3549
3550                 PluginUIWindow *plugin_ui;
3551
3552                 /* these are both allowed to be null */
3553
3554                 Window* w = get_processor_ui (plugin_insert);
3555
3556                 if (w == 0) {
3557                         plugin_ui = new PluginUIWindow (plugin_insert, false, use_custom);
3558                         plugin_ui->set_title (generate_processor_title (plugin_insert));
3559                         set_processor_ui (plugin_insert, plugin_ui);
3560
3561                 } else {
3562                         plugin_ui = dynamic_cast<PluginUIWindow *> (w);
3563                 }
3564
3565                 gidget = plugin_ui;
3566
3567         } else if ((port_insert = boost::dynamic_pointer_cast<PortInsert> (processor)) != 0) {
3568
3569                 if (!_session->engine().connected()) {
3570                         MessageDialog msg ( _("Not connected to audio engine - no I/O changes are possible"));
3571                         msg.run ();
3572                         return 0;
3573                 }
3574
3575                 PortInsertWindow *io_selector;
3576
3577                 Window* w = get_processor_ui (port_insert);
3578
3579                 if (w == 0) {
3580                         io_selector = new PortInsertWindow (_session, port_insert);
3581                         set_processor_ui (port_insert, io_selector);
3582
3583                 } else {
3584                         io_selector = dynamic_cast<PortInsertWindow *> (w);
3585                 }
3586
3587                 gidget = io_selector;
3588         }
3589
3590         return gidget;
3591 }
3592
3593 Gtk::Window*
3594 ProcessorBox::get_generic_editor_window (boost::shared_ptr<Processor> processor)
3595 {
3596         boost::shared_ptr<PluginInsert> plugin_insert
3597                 = boost::dynamic_pointer_cast<PluginInsert>(processor);
3598
3599         if (!plugin_insert) {
3600                 return 0;
3601         }
3602
3603         PluginUIWindow* win = new PluginUIWindow (plugin_insert, true, false);
3604         win->set_title (generate_processor_title (plugin_insert));
3605
3606         return win;
3607 }
3608
3609 void
3610 ProcessorBox::register_actions ()
3611 {
3612         processor_box_actions = myactions.create_action_group (X_("ProcessorMenu"));
3613
3614         Glib::RefPtr<Action> act;
3615
3616         /* new stuff */
3617         myactions.register_action (processor_box_actions, X_("newplugin"), _("New Plugin"),
3618                         sigc::ptr_fun (ProcessorBox::rb_choose_plugin));
3619
3620         act = myactions.register_action (processor_box_actions, X_("newlua"), _("New Lua DSP"),
3621                         sigc::ptr_fun (ProcessorBox::rb_choose_lua));
3622         act = myactions.register_action (processor_box_actions, X_("newinsert"), _("New Insert"),
3623                         sigc::ptr_fun (ProcessorBox::rb_choose_insert));
3624         ActionManager::engine_sensitive_actions.push_back (act);
3625         act = myactions.register_action (processor_box_actions, X_("newsend"), _("New External Send ..."),
3626                         sigc::ptr_fun (ProcessorBox::rb_choose_send));
3627         ActionManager::engine_sensitive_actions.push_back (act);
3628
3629         myactions.register_action (processor_box_actions, X_("newaux"), _("New Aux Send ..."));
3630
3631         myactions.register_action (processor_box_actions, X_("controls"), _("Controls"));
3632         myactions.register_action (processor_box_actions, X_("send_options"), _("Send Options"));
3633
3634         myactions.register_action (processor_box_actions, X_("clear"), _("Clear (all)"),
3635                         sigc::ptr_fun (ProcessorBox::rb_clear));
3636         myactions.register_action (processor_box_actions, X_("clear_pre"), _("Clear (pre-fader)"),
3637                         sigc::ptr_fun (ProcessorBox::rb_clear_pre));
3638         myactions.register_action (processor_box_actions, X_("clear_post"), _("Clear (post-fader)"),
3639                         sigc::ptr_fun (ProcessorBox::rb_clear_post));
3640
3641         /* standard editing stuff */
3642
3643         cut_action = myactions.register_action (processor_box_actions, X_("cut"), _("Cut"),
3644                                                             sigc::ptr_fun (ProcessorBox::rb_cut));
3645         copy_action = myactions.register_action (processor_box_actions, X_("copy"), _("Copy"),
3646                                                              sigc::ptr_fun (ProcessorBox::rb_copy));
3647         delete_action = myactions.register_action (processor_box_actions, X_("delete"), _("Delete"),
3648                                                                sigc::ptr_fun (ProcessorBox::rb_delete));
3649
3650         ActionManager::plugin_selection_sensitive_actions.push_back (cut_action);
3651         ActionManager::plugin_selection_sensitive_actions.push_back (copy_action);
3652         ActionManager::plugin_selection_sensitive_actions.push_back (delete_action);
3653
3654         paste_action = myactions.register_action (processor_box_actions, X_("paste"), _("Paste"),
3655                         sigc::ptr_fun (ProcessorBox::rb_paste));
3656         rename_action = myactions.register_action (processor_box_actions, X_("rename"), _("Rename"),
3657                         sigc::ptr_fun (ProcessorBox::rb_rename));
3658         myactions.register_action (processor_box_actions, X_("selectall"), _("Select All"),
3659                         sigc::ptr_fun (ProcessorBox::rb_select_all));
3660         myactions.register_action (processor_box_actions, X_("deselectall"), _("Deselect All"),
3661                         sigc::ptr_fun (ProcessorBox::rb_deselect_all));
3662
3663         /* activation etc. */
3664
3665         myactions.register_action (processor_box_actions, X_("activate_all"), _("Activate All"),
3666                         sigc::ptr_fun (ProcessorBox::rb_activate_all));
3667         myactions.register_action (processor_box_actions, X_("deactivate_all"), _("Deactivate All"),
3668                         sigc::ptr_fun (ProcessorBox::rb_deactivate_all));
3669         myactions.register_action (processor_box_actions, X_("ab_plugins"), _("A/B Plugins"),
3670                         sigc::ptr_fun (ProcessorBox::rb_ab_plugins));
3671
3672         manage_pins_action = myactions.register_action (
3673                 processor_box_actions, X_("manage-pins"), _("Pin Connections..."),
3674                 sigc::ptr_fun (ProcessorBox::rb_manage_pins));
3675
3676         /* show editors */
3677         edit_action = myactions.register_action (
3678                 processor_box_actions, X_("edit"), _("Edit..."),
3679                 sigc::ptr_fun (ProcessorBox::rb_edit));
3680
3681         edit_generic_action = myactions.register_action (
3682                 processor_box_actions, X_("edit-generic"), _("Edit with generic controls..."),
3683                 sigc::ptr_fun (ProcessorBox::rb_edit_generic));
3684
3685         load_bindings ();
3686 }
3687
3688 void
3689 ProcessorBox::rb_edit_generic ()
3690 {
3691         if (_current_processor_box == 0) {
3692                 return;
3693         }
3694
3695         _current_processor_box->for_selected_processors (&ProcessorBox::generic_edit_processor);
3696 }
3697
3698 void
3699 ProcessorBox::rb_ab_plugins ()
3700 {
3701         if (_current_processor_box == 0) {
3702                 return;
3703         }
3704
3705         _current_processor_box->ab_plugins ();
3706 }
3707
3708 void
3709 ProcessorBox::rb_manage_pins ()
3710 {
3711         if (_current_processor_box == 0) {
3712                 return;
3713         }
3714
3715         _current_processor_box->for_selected_processors (&ProcessorBox::manage_pins);
3716 }
3717 void
3718 ProcessorBox::rb_choose_plugin ()
3719 {
3720         if (_current_processor_box == 0) {
3721                 return;
3722         }
3723         _current_processor_box->choose_plugin ();
3724 }
3725
3726 void
3727 ProcessorBox::rb_choose_lua ()
3728 {
3729         if (_current_processor_box == 0) {
3730                 return;
3731         }
3732         _current_processor_box->choose_lua ();
3733 }
3734
3735 void
3736 ProcessorBox::rb_choose_insert ()
3737 {
3738         if (_current_processor_box == 0) {
3739                 return;
3740         }
3741         _current_processor_box->choose_insert ();
3742 }
3743
3744 void
3745 ProcessorBox::rb_choose_send ()
3746 {
3747         if (_current_processor_box == 0) {
3748                 return;
3749         }
3750         _current_processor_box->choose_send ();
3751 }
3752
3753 void
3754 ProcessorBox::rb_choose_aux (boost::weak_ptr<Route> wr)
3755 {
3756         if (_current_processor_box == 0) {
3757                 return;
3758         }
3759
3760         _current_processor_box->choose_aux (wr);
3761 }
3762
3763 void
3764 ProcessorBox::rb_clear ()
3765 {
3766         if (_current_processor_box == 0) {
3767                 return;
3768         }
3769
3770         _current_processor_box->clear_processors ();
3771 }
3772
3773
3774 void
3775 ProcessorBox::rb_clear_pre ()
3776 {
3777         if (_current_processor_box == 0) {
3778                 return;
3779         }
3780
3781         _current_processor_box->clear_processors (PreFader);
3782 }
3783
3784
3785 void
3786 ProcessorBox::rb_clear_post ()
3787 {
3788         if (_current_processor_box == 0) {
3789                 return;
3790         }
3791
3792         _current_processor_box->clear_processors (PostFader);
3793 }
3794
3795 void
3796 ProcessorBox::rb_cut ()
3797 {
3798         if (_current_processor_box == 0) {
3799                 return;
3800         }
3801
3802         _current_processor_box->processor_operation (ProcessorsCut);
3803 }
3804
3805 void
3806 ProcessorBox::rb_delete ()
3807 {
3808         if (_current_processor_box == 0) {
3809                 return;
3810         }
3811
3812         _current_processor_box->processor_operation (ProcessorsDelete);
3813 }
3814
3815 void
3816 ProcessorBox::rb_copy ()
3817 {
3818         if (_current_processor_box == 0) {
3819                 return;
3820         }
3821         _current_processor_box->processor_operation (ProcessorsCopy);
3822 }
3823
3824 void
3825 ProcessorBox::rb_paste ()
3826 {
3827         if (_current_processor_box == 0) {
3828                 return;
3829         }
3830
3831         _current_processor_box->processor_operation (ProcessorsPaste);
3832 }
3833
3834 void
3835 ProcessorBox::rb_rename ()
3836 {
3837         if (_current_processor_box == 0) {
3838                 return;
3839         }
3840         _current_processor_box->rename_processors ();
3841 }
3842
3843 void
3844 ProcessorBox::rb_select_all ()
3845 {
3846         if (_current_processor_box == 0) {
3847                 return;
3848         }
3849
3850         _current_processor_box->processor_operation (ProcessorsSelectAll);
3851 }
3852
3853 void
3854 ProcessorBox::rb_deselect_all ()
3855 {
3856         if (_current_processor_box == 0) {
3857                 return;
3858         }
3859
3860         _current_processor_box->deselect_all_processors ();
3861 }
3862
3863 void
3864 ProcessorBox::rb_activate_all ()
3865 {
3866         if (_current_processor_box == 0) {
3867                 return;
3868         }
3869
3870         _current_processor_box->all_visible_processors_active (true);
3871 }
3872
3873 void
3874 ProcessorBox::rb_deactivate_all ()
3875 {
3876         if (_current_processor_box == 0) {
3877                 return;
3878         }
3879         _current_processor_box->all_visible_processors_active (false);
3880 }
3881
3882 void
3883 ProcessorBox::rb_edit ()
3884 {
3885         if (_current_processor_box == 0) {
3886                 return;
3887         }
3888
3889         _current_processor_box->for_selected_processors (&ProcessorBox::edit_processor);
3890 }
3891
3892 bool
3893 ProcessorBox::edit_aux_send (boost::shared_ptr<Processor> processor)
3894 {
3895         if (boost::dynamic_pointer_cast<InternalSend> (processor) == 0) {
3896                 return false;
3897         }
3898
3899         if (_parent_strip) {
3900                 boost::shared_ptr<Send> send = boost::dynamic_pointer_cast<Send> (processor);
3901                 if (_parent_strip->current_delivery() == send) {
3902                         _parent_strip->revert_to_default_display ();
3903                 } else {
3904                         _parent_strip->show_send(send);
3905                 }
3906         }
3907         return true;
3908 }
3909
3910 void
3911 ProcessorBox::edit_processor (boost::shared_ptr<Processor> processor)
3912 {
3913         if (!processor) {
3914                 return;
3915         }
3916         if (edit_aux_send (processor)) {
3917                 return;
3918         }
3919
3920         ProcessorWindowProxy* proxy = find_window_proxy (processor);
3921
3922         if (proxy) {
3923                 proxy->set_custom_ui_mode (true);
3924                 proxy->show_the_right_window ();
3925         }
3926 }
3927
3928 void
3929 ProcessorBox::generic_edit_processor (boost::shared_ptr<Processor> processor)
3930 {
3931         if (!processor) {
3932                 return;
3933         }
3934         if (edit_aux_send (processor)) {
3935                 return;
3936         }
3937
3938         ProcessorWindowProxy* proxy = find_window_proxy (processor);
3939
3940         if (proxy) {
3941                 proxy->set_custom_ui_mode (false);
3942                 proxy->show_the_right_window ();
3943         }
3944 }
3945
3946 void
3947 ProcessorBox::manage_pins (boost::shared_ptr<Processor> processor)
3948 {
3949         if (!processor) {
3950                 return;
3951         }
3952         PluginPinWindowProxy* proxy = processor->pinmgr_proxy ();
3953         if (proxy) {
3954                 proxy->get (true);
3955                 proxy->present();
3956         }
3957 }
3958
3959
3960 void
3961 ProcessorBox::route_property_changed (const PropertyChange& what_changed)
3962 {
3963         if (!what_changed.contains (ARDOUR::Properties::name)) {
3964                 return;
3965         }
3966
3967         ENSURE_GUI_THREAD (*this, &ProcessorBox::route_property_changed, what_changed);
3968
3969         boost::shared_ptr<Processor> processor;
3970         boost::shared_ptr<PluginInsert> plugin_insert;
3971         boost::shared_ptr<Send> send;
3972
3973         list<ProcessorEntry*> children = processor_display.children();
3974
3975         for (list<ProcessorEntry*>::iterator iter = children.begin(); iter != children.end(); ++iter) {
3976
3977                 processor = (*iter)->processor ();
3978
3979                 if (!processor) {
3980                         continue;
3981                 }
3982
3983                 Window* w = get_processor_ui (processor);
3984
3985                 if (!w) {
3986                         continue;
3987                 }
3988
3989                 /* rename editor windows for sends and plugins */
3990
3991                 if ((send = boost::dynamic_pointer_cast<Send> (processor)) != 0) {
3992                         w->set_title (send->name ());
3993                 } else if ((plugin_insert = boost::dynamic_pointer_cast<PluginInsert> (processor)) != 0) {
3994                         w->set_title (generate_processor_title (plugin_insert));
3995                 }
3996         }
3997 }
3998
3999 string
4000 ProcessorBox::generate_processor_title (boost::shared_ptr<PluginInsert> pi)
4001 {
4002         string maker = pi->plugin()->maker() ? pi->plugin()->maker() : "";
4003         string::size_type email_pos;
4004
4005         if ((email_pos = maker.find_first_of ('<')) != string::npos) {
4006                 maker = maker.substr (0, email_pos - 1);
4007         }
4008
4009         if (maker.length() > 32) {
4010                 maker = maker.substr (0, 32);
4011                 maker += " ...";
4012         }
4013
4014         SessionObject* owner = pi->owner();
4015
4016         if (owner) {
4017                 return string_compose(_("%1: %2 (by %3)"), owner->name(), pi->name(), maker);
4018         } else {
4019                 return string_compose(_("%1 (by %2)"), pi->name(), maker);
4020         }
4021 }
4022
4023 /** @param p Processor.
4024  *  @return the UI window for \a p.
4025  */
4026 Window *
4027 ProcessorBox::get_processor_ui (boost::shared_ptr<Processor> p) const
4028 {
4029         ProcessorWindowProxy* wp = p->window_proxy();
4030         if (wp) {
4031                 return wp->get ();
4032         }
4033         return 0;
4034 }
4035
4036 /** Make a note of the UI window that a processor is using.
4037  *  @param p Processor.
4038  *  @param w UI window.
4039  */
4040 void
4041 ProcessorBox::set_processor_ui (boost::shared_ptr<Processor> p, Gtk::Window* w)
4042 {
4043         assert (p->window_proxy());
4044         p->set_ui (w);
4045         p->window_proxy()->use_window (*w);
4046 }
4047
4048 void
4049 ProcessorBox::mixer_strip_delivery_changed (boost::weak_ptr<Delivery> w)
4050 {
4051         boost::shared_ptr<Delivery> d = w.lock ();
4052         if (!d) {
4053                 return;
4054         }
4055
4056         list<ProcessorEntry*> children = processor_display.children ();
4057         list<ProcessorEntry*>::const_iterator i = children.begin();
4058         while (i != children.end() && (*i)->processor() != d) {
4059                 ++i;
4060         }
4061
4062         if (i == children.end()) {
4063                 processor_display.set_active (0);
4064         } else {
4065                 processor_display.set_active (*i);
4066         }
4067 }
4068
4069 /** Called to repair the damage of Editor::show_window doing a show_all() */
4070 void
4071 ProcessorBox::hide_things ()
4072 {
4073         list<ProcessorEntry*> c = processor_display.children ();
4074         for (list<ProcessorEntry*>::iterator i = c.begin(); i != c.end(); ++i) {
4075                 (*i)->hide_things ();
4076         }
4077 }
4078
4079 void
4080 ProcessorBox::processor_menu_unmapped ()
4081 {
4082         processor_display.remove_placeholder ();
4083         /* make all possibly-desensitized actions sensitive again so that
4084            they be activated by other means (e.g. bindings)
4085         */
4086         ActionManager::set_sensitive (ActionManager::plugin_selection_sensitive_actions, true);
4087 }
4088
4089 XMLNode *
4090 ProcessorBox::entry_gui_object_state (ProcessorEntry* entry)
4091 {
4092         if (!_parent_strip) {
4093                 return 0;
4094         }
4095
4096         GUIObjectState& st = _parent_strip->gui_object_state ();
4097
4098         XMLNode* strip = st.get_or_add_node (_parent_strip->state_id ());
4099         assert (strip);
4100         return st.get_or_add_node (strip, entry->state_id());
4101 }
4102
4103 void
4104 ProcessorBox::update_gui_object_state (ProcessorEntry* entry)
4105 {
4106         XMLNode* proc = entry_gui_object_state (entry);
4107         if (!proc) {
4108                 return;
4109         }
4110
4111         /* XXX: this is a bit inefficient; we just remove all child nodes and re-add them */
4112         proc->remove_nodes_and_delete (X_("Object"));
4113         entry->add_control_state (proc);
4114 }
4115
4116 bool
4117 ProcessorBox::is_editor_mixer_strip() const
4118 {
4119         return _parent_strip && !_parent_strip->mixer_owned();
4120 }
4121
4122 ProcessorWindowProxy::ProcessorWindowProxy (string const & name, ProcessorBox* box, boost::weak_ptr<Processor> processor)
4123         : WM::ProxyBase (name, string())
4124         , _processor_box (box)
4125         , _processor (processor)
4126         , is_custom (false)
4127         , want_custom (false)
4128 {
4129         boost::shared_ptr<Processor> p = _processor.lock ();
4130         if (!p) {
4131                 return;
4132         }
4133         p->DropReferences.connect (going_away_connection, MISSING_INVALIDATOR, boost::bind (&ProcessorWindowProxy::processor_going_away, this), gui_context());
4134 }
4135
4136 ProcessorWindowProxy::~ProcessorWindowProxy()
4137 {
4138         /* processor window proxies do not own the windows they create with
4139          * ::get(), so set _window to null before the normal WindowProxy method
4140          * deletes it.
4141          */
4142         _window = 0;
4143 }
4144
4145 void
4146 ProcessorWindowProxy::processor_going_away ()
4147 {
4148         delete _window;
4149         _window = 0;
4150         WM::Manager::instance().remove (this);
4151         /* should be no real reason to do this, since the object that would
4152            send DropReferences is about to be deleted, but lets do it anyway.
4153         */
4154         going_away_connection.disconnect();
4155 }
4156
4157 ARDOUR::SessionHandlePtr*
4158 ProcessorWindowProxy::session_handle()
4159 {
4160         /* we don't care */
4161         return 0;
4162 }
4163
4164 XMLNode&
4165 ProcessorWindowProxy::get_state ()
4166 {
4167         XMLNode *node;
4168         node = &ProxyBase::get_state();
4169         node->add_property (X_("custom-ui"), is_custom? X_("yes") : X_("no"));
4170         return *node;
4171 }
4172
4173 int
4174 ProcessorWindowProxy::set_state (const XMLNode& node, int /*version*/)
4175 {
4176         XMLNodeList children = node.children ();
4177         XMLNodeList::const_iterator i = children.begin ();
4178         while (i != children.end()) {
4179                 XMLProperty* prop = (*i)->property (X_("name"));
4180                 if ((*i)->name() == X_("Window") && prop && prop->value() == _name) {
4181                         break;
4182                 }
4183                 ++i;
4184         }
4185
4186         if (i != children.end()) {
4187                 XMLProperty* prop;
4188                 if ((prop = (*i)->property (X_("custom-ui"))) != 0) {
4189                         want_custom = PBD::string_is_affirmative (prop->value ());
4190                 }
4191         }
4192
4193         return ProxyBase::set_state (node, 0);
4194 }
4195
4196 Gtk::Window*
4197 ProcessorWindowProxy::get (bool create)
4198 {
4199         boost::shared_ptr<Processor> p = _processor.lock ();
4200
4201         if (!p) {
4202                 return 0;
4203         }
4204         if (_window && (is_custom != want_custom)) {
4205                 /* drop existing window - wrong type */
4206                 drop_window ();
4207         }
4208
4209         if (!_window) {
4210                 if (!create) {
4211                         return 0;
4212                 }
4213
4214                 is_custom = want_custom;
4215                 _window = _processor_box->get_editor_window (p, is_custom);
4216
4217                 if (_window) {
4218                         setup ();
4219                 }
4220         }
4221         _window->show_all ();
4222         return _window;
4223 }
4224
4225 void
4226 ProcessorWindowProxy::show_the_right_window ()
4227 {
4228         if (_window && (is_custom != want_custom)) {
4229                 /* drop existing window - wrong type */
4230                 drop_window ();
4231                 get (true);
4232                 setup ();
4233                 assert (_window);
4234                 is_custom = want_custom;
4235         }
4236
4237         toggle ();
4238 }
4239
4240
4241 PluginPinWindowProxy::PluginPinWindowProxy(std::string const &name, boost::weak_ptr<ARDOUR::Processor> processor)
4242         : WM::ProxyBase (name, string())
4243         , _processor (processor)
4244 {
4245         boost::shared_ptr<Processor> p = _processor.lock ();
4246         if (!p) {
4247                 return;
4248         }
4249         p->DropReferences.connect (going_away_connection, MISSING_INVALIDATOR, boost::bind (&PluginPinWindowProxy::processor_going_away, this), gui_context());
4250 }
4251
4252 PluginPinWindowProxy::~PluginPinWindowProxy()
4253 {
4254         _window = 0;
4255 }
4256
4257 ARDOUR::SessionHandlePtr*
4258 PluginPinWindowProxy::session_handle ()
4259 {
4260         ArdourWindow* aw = dynamic_cast<ArdourWindow*> (_window);
4261         if (aw) { return aw; }
4262         return 0;
4263 }
4264
4265 Gtk::Window*
4266 PluginPinWindowProxy::get (bool create)
4267 {
4268         boost::shared_ptr<Processor> p = _processor.lock ();
4269         boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (p);
4270         if (!p || !pi) {
4271                 return 0;
4272         }
4273
4274         if (!_window) {
4275                 if (!create) {
4276                         return 0;
4277                 }
4278                 _window = new PluginPinDialog (pi);
4279                 ArdourWindow* aw = dynamic_cast<ArdourWindow*> (_window);
4280                 if (aw) {
4281                         aw->set_session (_session);
4282                 }
4283         }
4284
4285         _window->show_all ();
4286         return _window;
4287 }
4288
4289 void
4290 PluginPinWindowProxy::processor_going_away ()
4291 {
4292         delete _window;
4293         _window = 0;
4294         WM::Manager::instance().remove (this);
4295         going_away_connection.disconnect();
4296 }
4297
4298 void
4299 ProcessorBox::load_bindings ()
4300 {
4301         bindings = Bindings::get_bindings (X_("Processor Box"), myactions);
4302 }