gtk2_ardour/panner_ui.cc

   1 /*
   2   Copyright (C) 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 #include <limits.h>
  20
  21 #include "ardour/io.h"
  22 #include "ardour/dB.h"
  23 #include <gtkmm2ext/utils.h>
  24 #include <gtkmm2ext/stop_signal.h>
  25 #include <gtkmm2ext/barcontroller.h>
  26 #include "midi++/manager.h"
  27 #include "pbd/fastlog.h"
  28
  29 #include "ardour_ui.h"
  30 #include "panner_ui.h"
  31 #include "panner2d.h"
  32 #include "utils.h"
  33 #include "panner.h"
  34 #include "gui_thread.h"
  35
  36 #include "ardour/delivery.h"
  37 #include "ardour/session.h"
  38 #include "ardour/panner.h"
  39 #include "ardour/route.h"
  40
  41 #include "i18n.h"
  42
  43 using namespace std;
  44 using namespace ARDOUR;
  45 using namespace PBD;
  46 using namespace Gtkmm2ext;
  47 using namespace Gtk;
  48 using namespace sigc;
  49
  50 const int PannerUI::pan_bar_height = 30;
  51
  52 PannerUI::PannerUI (Session& s)
  53         : _session (s),
  54           _current_nouts (-1),
  55           hAdjustment(0.0, 0.0, 0.0),
  56           vAdjustment(0.0, 0.0, 0.0),
  57           panning_viewport(hAdjustment, vAdjustment),
  58           panning_up_arrow (Gtk::ARROW_UP, Gtk::SHADOW_OUT),
  59           panning_down_arrow (Gtk::ARROW_DOWN, Gtk::SHADOW_OUT),
  60           panning_link_button (_("link")),
  61           pan_automation_style_button (""),
  62           pan_automation_state_button ("")
  63 {
  64         ignore_toggle = false;
  65         pan_menu = 0;
  66         pan_astate_menu = 0;
  67         pan_astyle_menu = 0;
  68         in_pan_update = false;
  69
  70         pan_automation_style_button.set_name ("MixerAutomationModeButton");
  71         pan_automation_state_button.set_name ("MixerAutomationPlaybackButton");
  72
  73         ARDOUR_UI::instance()->tooltips().set_tip (pan_automation_state_button, _("Pan automation mode"));
  74         ARDOUR_UI::instance()->tooltips().set_tip (pan_automation_style_button, _("Pan automation type"));
  75
  76         //set_size_request_to_display_given_text (pan_automation_state_button, X_("O"), 2, 2);
  77         //set_size_request_to_display_given_text (pan_automation_style_button, X_("0"), 2, 2);
  78
  79         pan_bar_packer.set_size_request (-1, 61);
  80         panning_viewport.set_size_request (-1, 61);
  81         panning_viewport.set_name (X_("BaseFrame"));
  82
  83         ARDOUR_UI::instance()->tooltips().set_tip (panning_link_button,
  84                                                    _("panning link control"));
  85         ARDOUR_UI::instance()->tooltips().set_tip (panning_link_direction_button,
  86                                                    _("panning link direction"));
  87
  88         pan_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
  89         pan_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
  90
  91         pan_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &PannerUI::pan_automation_style_button_event), false);
  92         pan_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &PannerUI::pan_automation_state_button_event), false);
  93
  94         panning_link_button.set_name (X_("PanningLinkButton"));
  95         panning_link_direction_button.set_name (X_("PanningLinkDirectionButton"));
  96
  97         panning_link_box.pack_start (panning_link_button, true, true);
  98         panning_link_box.pack_start (panning_link_direction_button, true, true);
  99         panning_link_box.pack_start (pan_automation_state_button, true, true);
 100
 101         /* the pixmap will be reset at some point, but the key thing is that
 102            we need a pixmap in the button just to get started.
 103         */
 104         panning_link_direction_button.add (*(manage (new Image (get_xpm("forwardblarrow.xpm")))));
 105
 106         panning_link_direction_button.signal_clicked().connect
 107                 (mem_fun(*this, &PannerUI::panning_link_direction_clicked));
 108
 109         panning_link_button.signal_button_press_event().connect
 110                 (mem_fun(*this, &PannerUI::panning_link_button_press), false);
 111         panning_link_button.signal_button_release_event().connect
 112                 (mem_fun(*this, &PannerUI::panning_link_button_release), false);
 113
 114         panning_up.set_border_width (3);
 115         panning_down.set_border_width (3);
 116         panning_up.add (panning_up_arrow);
 117         panning_down.add (panning_down_arrow);
 118         panning_up.set_name (X_("PanScrollerBase"));
 119         panning_down.set_name (X_("PanScrollerBase"));
 120         panning_up_arrow.set_name (X_("PanScrollerArrow"));
 121         panning_down_arrow.set_name (X_("PanScrollerArrow"));
 122
 123         pan_vbox.set_spacing (2);
 124         pan_vbox.pack_start (panning_viewport, Gtk::PACK_SHRINK);
 125         pan_vbox.pack_start (panning_link_box, Gtk::PACK_SHRINK);
 126
 127         pack_start (pan_vbox, true, true);
 128
 129         panner = 0;
 130         big_window = 0;
 131
 132         set_width(Narrow);
 133 }
 134
 135 void
 136 PannerUI::set_panner (boost::shared_ptr<Panner> p)
 137 {
 138         connections.clear ();
 139
 140         delete pan_astyle_menu;
 141         pan_astyle_menu = 0;
 142
 143         delete pan_astate_menu;
 144         pan_astate_menu = 0;
 145
 146         _panner = p;
 147
 148         delete panner;
 149         panner = 0;
 150
 151         if (!_panner) {
 152                 return;
 153         }
 154
 155         connections.push_back (_panner->Changed.connect (mem_fun(*this, &PannerUI::panner_changed)));
 156         connections.push_back (_panner->LinkStateChanged.connect (mem_fun(*this, &PannerUI::update_pan_linkage)));
 157         connections.push_back (_panner->StateChanged.connect (mem_fun(*this, &PannerUI::update_pan_state)));
 158
 159         setup_pan ();
 160
 161         pan_changed (0);
 162         update_pan_sensitive ();
 163         update_pan_linkage ();
 164         pan_automation_state_changed ();
 165
 166 #if WHERE_DOES_THIS_LIVE
 167         pan_bar_packer.show();
 168         panning_viewport.show();
 169         panning_up.show();
 170         panning_up_arrow.show();
 171         panning_down.show();
 172         panning_down_arrow.show();
 173         pan_vbox.show();
 174         panning_link_button.show();
 175         panning_link_direction_button.show();
 176         panning_link_box.show();
 177         pan_automation_style_button.show();
 178         pan_automation_state_button.show();
 179         show();
 180 #endif
 181 }
 182
 183 void
 184 PannerUI::build_astate_menu ()
 185 {
 186         using namespace Menu_Helpers;
 187
 188         if (pan_astate_menu == 0) {
 189                 pan_astate_menu = new Menu;
 190                 pan_astate_menu->set_name ("ArdourContextMenu");
 191         } else {
 192                 pan_astate_menu->items().clear ();
 193         }
 194
 195         pan_astate_menu->items().push_back (MenuElem (_("Manual"), bind (
 196                         mem_fun (_panner.get(), &Panner::set_automation_state),
 197                         (AutoState) Off)));
 198         pan_astate_menu->items().push_back (MenuElem (_("Play"), bind (
 199                         mem_fun (_panner.get(), &Panner::set_automation_state),
 200                         (AutoState) Play)));
 201         pan_astate_menu->items().push_back (MenuElem (_("Write"), bind (
 202                         mem_fun (_panner.get(), &Panner::set_automation_state),
 203                         (AutoState) Write)));
 204         pan_astate_menu->items().push_back (MenuElem (_("Touch"), bind (
 205                         mem_fun (_panner.get(), &Panner::set_automation_state),
 206                         (AutoState) Touch)));
 207
 208 }
 209
 210 void
 211 PannerUI::build_astyle_menu ()
 212 {
 213         using namespace Menu_Helpers;
 214
 215         if (pan_astyle_menu == 0) {
 216                 pan_astyle_menu = new Menu;
 217                 pan_astyle_menu->set_name ("ArdourContextMenu");
 218         } else {
 219                 pan_astyle_menu->items().clear();
 220         }
 221
 222         pan_astyle_menu->items().push_back (MenuElem (_("Trim")));
 223         pan_astyle_menu->items().push_back (MenuElem (_("Abs")));
 224 }
 225
 226 boost::shared_ptr<PBD::Controllable>
 227 PannerUI::get_controllable()
 228 {
 229         return pan_bars[0]->get_controllable();
 230 }
 231
 232 bool
 233 PannerUI::panning_link_button_press (GdkEventButton*)
 234 {
 235         return true;
 236 }
 237
 238 bool
 239 PannerUI::panning_link_button_release (GdkEventButton*)
 240 {
 241         if (!ignore_toggle) {
 242                 _panner->set_linked (!_panner->linked());
 243         }
 244         return true;
 245 }
 246
 247 void
 248 PannerUI::panning_link_direction_clicked()
 249 {
 250         switch (_panner->link_direction()) {
 251         case Panner::SameDirection:
 252                 _panner->set_link_direction (Panner::OppositeDirection);
 253                 break;
 254         default:
 255                 _panner->set_link_direction (Panner::SameDirection);
 256                 break;
 257         }
 258 }
 259
 260 void
 261 PannerUI::update_pan_linkage ()
 262 {
 263         ENSURE_GUI_THREAD(mem_fun(*this, &PannerUI::update_pan_linkage));
 264
 265         bool x = _panner->linked();
 266         bool bx = panning_link_button.get_active();
 267
 268         if (x != bx) {
 269
 270                 ignore_toggle = true;
 271                 panning_link_button.set_active (x);
 272                 ignore_toggle = false;
 273         }
 274
 275         panning_link_direction_button.set_sensitive (x);
 276
 277         switch (_panner->link_direction()) {
 278         case Panner::SameDirection:
 279                 panning_link_direction_button.set_image (*(manage (new Image (get_xpm ("forwardblarrow.xpm")))));
 280                 break;
 281         default:
 282                 panning_link_direction_button.set_image (*(manage (new Image (get_xpm("revdblarrow.xpm")))));
 283                 break;
 284         }
 285 }
 286
 287 void
 288 PannerUI::set_width (Width w)
 289 {
 290         switch (w) {
 291         case Wide:
 292                 panning_link_button.set_label (_("link"));
 293                 break;
 294         case Narrow:
 295                 panning_link_button.set_label (_("L"));
 296                 break;
 297         }
 298
 299         _width = w;
 300 }
 301
 302
 303 PannerUI::~PannerUI ()
 304 {
 305         for (vector<Adjustment*>::iterator i = pan_adjustments.begin(); i != pan_adjustments.end(); ++i) {
 306                 delete (*i);
 307         }
 308
 309         for (vector<PannerBar*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
 310                 delete (*i);
 311         }
 312
 313         delete panner;
 314         delete big_window;
 315         delete pan_menu;
 316         delete pan_astyle_menu;
 317         delete pan_astate_menu;
 318 }
 319
 320
 321 void
 322 PannerUI::panner_changed ()
 323 {
 324         ENSURE_GUI_THREAD (mem_fun(*this, &PannerUI::panner_changed));
 325         setup_pan ();
 326         pan_changed (0);
 327 }
 328
 329 void
 330 PannerUI::update_pan_state ()
 331 {
 332         /* currently nothing to do */
 333         // ENSURE_GUI_THREAD (mem_fun(*this, &PannerUI::update_panner_state));
 334 }
 335
 336 void
 337 PannerUI::setup_pan ()
 338 {
 339         if (!_panner) {
 340                 return;
 341         }
 342
 343         uint32_t nouts = _panner->nouts();
 344
 345         if (int32_t (nouts) == _current_nouts) {
 346                 return;
 347         }
 348
 349         _current_nouts = nouts;
 350
 351         cout << "Setup pan for " << _panner->name() << endl;
 352
 353         if (nouts == 0 || nouts == 1) {
 354
 355                 while (!pan_adjustments.empty()) {
 356                         delete pan_bars.back();
 357                         pan_bars.pop_back ();
 358                         delete pan_adjustments.back();
 359                         pan_adjustments.pop_back ();
 360                 }
 361
 362                 /* stick something into the panning viewport so that it redraws */
 363
 364                 EventBox* eb = manage (new EventBox());
 365                 panning_viewport.remove ();
 366                 panning_viewport.add (*eb);
 367                 panning_viewport.show_all ();
 368
 369         } else if (nouts == 2) {
 370
 371                 vector<Adjustment*>::size_type asz;
 372                 uint32_t npans = _panner->npanners();
 373
 374                 while (!pan_adjustments.empty()) {
 375                         delete pan_bars.back();
 376                         pan_bars.pop_back ();
 377                         delete pan_adjustments.back();
 378                         pan_adjustments.pop_back ();
 379                 }
 380
 381                 while ((asz = pan_adjustments.size()) < npans) {
 382
 383                         float x, rx;
 384                         PannerBar* bc;
 385
 386                         /* initialize adjustment with 0.0 (L) or 1.0 (R) for the first and second panners,
 387                            which serves as a default, otherwise use current value */
 388
 389                         rx = _panner->pan_control( asz)->get_value();
 390
 391                         if (npans == 1) {
 392                                 x = 0.5;
 393                         } else if (asz == 0) {
 394                                 x = 0.0;
 395                         } else if (asz == 1) {
 396                                 x = 1.0;
 397                         } else {
 398                                 x = rx;
 399                         }
 400
 401                         pan_adjustments.push_back (new Adjustment (x, 0, 1.0, 0.005, 0.05));
 402                         bc = new PannerBar (*pan_adjustments[asz],
 403                                 boost::static_pointer_cast<PBD::Controllable>( _panner->pan_control( asz )) );
 404
 405                         /* now set adjustment with current value of panner, then connect the signals */
 406                         pan_adjustments.back()->set_value(rx);
 407                         pan_adjustments.back()->signal_value_changed().connect (bind (mem_fun(*this, &PannerUI::pan_adjustment_changed), (uint32_t) asz));
 408
 409                         _panner->pan_control( asz )->Changed.connect (bind (mem_fun(*this, &PannerUI::pan_value_changed), (uint32_t) asz));
 410
 411
 412                         bc->set_name ("PanSlider");
 413                         bc->set_shadow_type (Gtk::SHADOW_NONE);
 414
 415                         boost::shared_ptr<AutomationControl> ac = _panner->pan_control (asz);
 416
 417                         if (asz) {
 418                                 bc->StartGesture.connect (mem_fun (*ac, &AutomationControl::start_touch));
 419                                 bc->StopGesture.connect (mem_fun (*ac, &AutomationControl::stop_touch));
 420                         }
 421
 422                         char buf[64];
 423                         snprintf (buf, sizeof (buf), _("panner for channel %zu"), asz + 1);
 424                         ARDOUR_UI::instance()->tooltips().set_tip (bc->event_widget(), buf);
 425
 426                         bc->event_widget().signal_button_release_event().connect
 427                                 (bind (mem_fun(*this, &PannerUI::pan_button_event), (uint32_t) asz));
 428
 429                         bc->set_size_request (-1, pan_bar_height);
 430
 431                         pan_bars.push_back (bc);
 432                         pan_bar_packer.pack_start (*bc, false, false);
 433                 }
 434
 435                 /* now that we actually have the pan bars,
 436                    set their sensitivity based on current
 437                    automation state.
 438                 */
 439
 440                 update_pan_sensitive ();
 441
 442                 panning_viewport.remove ();
 443                 panning_viewport.add (pan_bar_packer);
 444                 panning_viewport.show_all ();
 445
 446         } else {
 447
 448                 if (!panner) {
 449                         panner = new Panner2d (_panner, 61);
 450                         panner->set_name ("MixerPanZone");
 451                         panner->show ();
 452
 453                         panner->signal_button_press_event().connect
 454                                 (bind (mem_fun(*this, &PannerUI::pan_button_event), (uint32_t) 0), false);
 455                 }
 456
 457                 update_pan_sensitive ();
 458                 panner->reset (nouts);
 459                 if (big_window) {
 460                         big_window->reset (_panner->npanners());
 461                 }
 462                 panner->set_size_request (-1, 61);
 463
 464                 /* and finally, add it to the panner frame */
 465
 466                 panning_viewport.remove ();
 467                 panning_viewport.add (*panner);
 468                 panning_viewport.show_all ();
 469         }
 470 }
 471
 472 bool
 473 PannerUI::pan_button_event (GdkEventButton* ev, uint32_t which)
 474 {
 475         switch (ev->button) {
 476         case 1:
 477                 if (panner && ev->type == GDK_2BUTTON_PRESS) {
 478                         if (!big_window) {
 479                                 big_window = new Panner2dWindow (_panner, 400, _panner->npanners());
 480                         }
 481                         big_window->show ();
 482                         return true;
 483                 }
 484                 break;
 485
 486         case 3:
 487                 if (pan_menu == 0) {
 488                         pan_menu = manage (new Menu);
 489                         pan_menu->set_name ("ArdourContextMenu");
 490                 }
 491                 build_pan_menu (which);
 492                 pan_menu->popup (1, ev->time);
 493                 return true;
 494                 break;
 495         default:
 496                 return false;
 497         }
 498
 499         return false; // what's wrong with gcc?
 500 }
 501
 502 void
 503 PannerUI::build_pan_menu (uint32_t which)
 504 {
 505         using namespace Menu_Helpers;
 506         MenuList& items (pan_menu->items());
 507
 508         items.clear ();
 509
 510         items.push_back (CheckMenuElem (_("Mute")));
 511
 512         /* set state first, connect second */
 513
 514         (dynamic_cast<CheckMenuItem*> (&items.back()))->set_active (_panner->streampanner(which).muted());
 515         (dynamic_cast<CheckMenuItem*> (&items.back()))->signal_toggled().connect
 516                 (bind (mem_fun(*this, &PannerUI::pan_mute), which));
 517
 518         items.push_back (CheckMenuElem (_("Bypass"), mem_fun(*this, &PannerUI::pan_bypass_toggle)));
 519         bypass_menu_item = static_cast<CheckMenuItem*> (&items.back());
 520
 521         /* set state first, connect second */
 522
 523         bypass_menu_item->set_active (_panner->bypassed());
 524         bypass_menu_item->signal_toggled().connect (mem_fun(*this, &PannerUI::pan_bypass_toggle));
 525
 526         items.push_back (MenuElem (_("Reset"), bind (mem_fun (*this, &PannerUI::pan_reset), which)));
 527         items.push_back (SeparatorElem());
 528         items.push_back (MenuElem (_("Reset all"), mem_fun (*this, &PannerUI::pan_reset_all)));
 529 }
 530
 531 void
 532 PannerUI::pan_mute (uint32_t which)
 533 {
 534         StreamPanner& sp = _panner->streampanner(which);
 535         sp.set_muted (!sp.muted());
 536 }
 537
 538 void
 539 PannerUI::pan_bypass_toggle ()
 540 {
 541         if (bypass_menu_item && (_panner->bypassed() != bypass_menu_item->get_active())) {
 542                 _panner->set_bypassed (!_panner->bypassed());
 543         }
 544 }
 545
 546 void
 547 PannerUI::pan_reset (uint32_t which)
 548 {
 549         _panner->reset_streampanner (which);
 550 }
 551
 552 void
 553 PannerUI::pan_reset_all ()
 554 {
 555         _panner->reset_to_default ();
 556 }
 557
 558 void
 559 PannerUI::effective_pan_display ()
 560 {
 561         if (_panner->empty()) {
 562                 return;
 563         }
 564
 565         switch (_panner->nouts()) {
 566         case 0:
 567         case 1:
 568                 /* relax */
 569                 break;
 570
 571         case 2:
 572                 update_pan_bars (true);
 573                 break;
 574
 575         default:
 576                 //panner->move_puck (pan_value (v, right), 0.5);
 577                 break;
 578         }
 579 }
 580
 581 void
 582 PannerUI::pan_changed (void *src)
 583 {
 584         if (src == this) {
 585                 return;
 586         }
 587
 588         switch (_panner->npanners()) {
 589         case 0:
 590                 panning_link_direction_button.set_sensitive (false);
 591                 panning_link_button.set_sensitive (false);
 592                 return;
 593         case 1:
 594                 panning_link_direction_button.set_sensitive (false);
 595                 panning_link_button.set_sensitive (false);
 596                 break;
 597         default:
 598                 panning_link_direction_button.set_sensitive (true);
 599                 panning_link_button.set_sensitive (true);
 600         }
 601
 602         uint32_t nouts = _panner->nouts();
 603
 604         switch (nouts) {
 605         case 0:
 606         case 1:
 607                 /* relax */
 608                 break;
 609
 610         case 2:
 611                 /* bring pan bar state up to date */
 612                 update_pan_bars (false);
 613                 break;
 614
 615         default:
 616                 // panner->move_puck (pan_value (pans[0], pans[1]), 0.5);
 617                 break;
 618         }
 619 }
 620
 621 void
 622 PannerUI::pan_adjustment_changed (uint32_t which)
 623 {
 624         if (!in_pan_update && which < _panner->npanners()) {
 625
 626                 float xpos;
 627                 float val = pan_adjustments[which]->get_value ();
 628                 xpos = _panner->pan_control( which )->get_value();
 629
 630                 /* add a kinda-sorta detent for the middle */
 631
 632                 if (val != 0.5 && Panner::equivalent (val, 0.5)) {
 633                         /* this is going to be reentrant, so just
 634                            return after it.
 635                         */
 636
 637                         in_pan_update = true;
 638                         pan_adjustments[which]->set_value (0.5);
 639                         in_pan_update = false;
 640                         return;
 641                 }
 642
 643                 if (!Panner::equivalent (val, xpos)) {
 644
 645                         _panner->streampanner(which).set_position (val);
 646                         /* XXX
 647                            the panner objects have no access to the session,
 648                            so do this here. ick.
 649                         */
 650                         _session.set_dirty();
 651                 }
 652         }
 653 }
 654
 655 void
 656 PannerUI::pan_value_changed (uint32_t which)
 657 {
 658         ENSURE_GUI_THREAD (bind (mem_fun(*this, &PannerUI::pan_value_changed), which));
 659
 660         if (_panner->npanners() > 1 && which < _panner->npanners()) {
 661                 float xpos;
 662                 float val = pan_adjustments[which]->get_value ();
 663
 664                 _panner->streampanner(which).get_position (xpos);
 665
 666                 if (!Panner::equivalent (val, xpos)) {
 667                         in_pan_update = true;
 668                         pan_adjustments[which]->set_value (xpos);
 669                         in_pan_update = false;
 670                 }
 671         }
 672 }
 673
 674 void
 675 PannerUI::update_pan_bars (bool only_if_aplay)
 676 {
 677         uint32_t n;
 678         vector<Adjustment*>::iterator i;
 679
 680         in_pan_update = true;
 681
 682         /* this runs during automation playback, and moves the bar controllers
 683            and/or pucks around.
 684         */
 685
 686         for (i = pan_adjustments.begin(), n = 0; i != pan_adjustments.end(); ++i, ++n) {
 687                 float xpos, val;
 688
 689                 if (only_if_aplay) {
 690                         boost::shared_ptr<AutomationList> alist (_panner->streampanner(n).pan_control()->alist());
 691
 692                         if (!alist->automation_playback()) {
 693                                 continue;
 694                         }
 695                 }
 696
 697                 _panner->streampanner(n).get_effective_position (xpos);
 698                 val = (*i)->get_value ();
 699
 700                 if (!Panner::equivalent (val, xpos)) {
 701                         (*i)->set_value (xpos);
 702                 }
 703         }
 704
 705         in_pan_update = false;
 706 }
 707
 708 void
 709 PannerUI::update_pan_sensitive ()
 710 {
 711         bool sensitive = !(_panner->automation_state() & Play);
 712
 713         switch (_panner->nouts()) {
 714         case 0:
 715         case 1:
 716                 break;
 717         case 2:
 718                 for (vector<PannerBar*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
 719                         (*i)->set_sensitive (sensitive);
 720                 }
 721                 break;
 722         default:
 723                 if (panner) {
 724                         panner->set_sensitive (sensitive);
 725                 }
 726                 if (big_window) {
 727                         big_window->set_sensitive (sensitive);
 728                 }
 729                 break;
 730         }
 731 }
 732
 733 gint
 734 PannerUI::pan_automation_state_button_event (GdkEventButton *ev)
 735 {
 736         using namespace Menu_Helpers;
 737
 738         if (ev->type == GDK_BUTTON_RELEASE) {
 739                 return TRUE;
 740         }
 741
 742         switch (ev->button) {
 743         case 1:
 744                 if (pan_astate_menu == 0) {
 745                         build_astate_menu ();
 746                 }
 747                 pan_astate_menu->popup (1, ev->time);
 748                 break;
 749         default:
 750                 break;
 751         }
 752
 753         return TRUE;
 754 }
 755
 756 gint
 757 PannerUI::pan_automation_style_button_event (GdkEventButton *ev)
 758 {
 759         if (ev->type == GDK_BUTTON_RELEASE) {
 760                 return TRUE;
 761         }
 762
 763         switch (ev->button) {
 764         case 1:
 765                 if (pan_astyle_menu == 0) {
 766                         build_astyle_menu ();
 767                 }
 768                 pan_astyle_menu->popup (1, ev->time);
 769                 break;
 770         default:
 771                 break;
 772         }
 773         return TRUE;
 774 }
 775
 776 void
 777 PannerUI::pan_automation_style_changed ()
 778 {
 779         ENSURE_GUI_THREAD(mem_fun(*this, &PannerUI::pan_automation_style_changed));
 780
 781         switch (_width) {
 782         case Wide:
 783                 pan_automation_style_button.set_label (astyle_string(_panner->automation_style()));
 784                 break;
 785         case Narrow:
 786                 pan_automation_style_button.set_label (short_astyle_string(_panner->automation_style()));
 787                 break;
 788         }
 789 }
 790
 791 void
 792 PannerUI::pan_automation_state_changed ()
 793 {
 794         ENSURE_GUI_THREAD(mem_fun(*this, &PannerUI::pan_automation_state_changed));
 795
 796         bool x;
 797
 798         switch (_width) {
 799         case Wide:
 800           pan_automation_state_button.set_label (astate_string(_panner->automation_state()));
 801                 break;
 802         case Narrow:
 803           pan_automation_state_button.set_label (short_astate_string(_panner->automation_state()));
 804                 break;
 805         }
 806
 807         /* when creating a new session, we get to create busses (and
 808            sometimes tracks) with no outputs by the time they get
 809            here.
 810         */
 811
 812         if (_panner->empty()) {
 813                 return;
 814         }
 815
 816         x = (_panner->streampanner(0).pan_control()->alist()->automation_state() != Off);
 817
 818         if (pan_automation_state_button.get_active() != x) {
 819         ignore_toggle = true;
 820                 pan_automation_state_button.set_active (x);
 821                 ignore_toggle = false;
 822         }
 823
 824         update_pan_sensitive ();
 825
 826         /* start watching automation so that things move */
 827
 828         pan_watching.disconnect();
 829
 830         if (x) {
 831                 pan_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &PannerUI::effective_pan_display));
 832         }
 833 }
 834
 835 string
 836 PannerUI::astate_string (AutoState state)
 837 {
 838         return _astate_string (state, false);
 839 }
 840
 841 string
 842 PannerUI::short_astate_string (AutoState state)
 843 {
 844         return _astate_string (state, true);
 845 }
 846
 847 string
 848 PannerUI::_astate_string (AutoState state, bool shrt)
 849 {
 850         string sstr;
 851
 852         switch (state) {
 853         case Off:
 854                 sstr = (shrt ? "M" : _("M"));
 855                 break;
 856         case Play:
 857                 sstr = (shrt ? "P" : _("P"));
 858                 break;
 859         case Touch:
 860                 sstr = (shrt ? "T" : _("T"));
 861                 break;
 862         case Write:
 863                 sstr = (shrt ? "W" : _("W"));
 864                 break;
 865         }
 866
 867         return sstr;
 868 }
 869
 870 string
 871 PannerUI::astyle_string (AutoStyle style)
 872 {
 873         return _astyle_string (style, false);
 874 }
 875
 876 string
 877 PannerUI::short_astyle_string (AutoStyle style)
 878 {
 879         return _astyle_string (style, true);
 880 }
 881
 882 string
 883 PannerUI::_astyle_string (AutoStyle style, bool shrt)
 884 {
 885         if (style & Trim) {
 886                 return _("Trim");
 887         } else {
 888                 /* XXX it might different in different languages */
 889
 890                 return (shrt ? _("Abs") : _("Abs"));
 891         }
 892 }