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/barcontroller.h>
  25 #include "midi++/manager.h"
  26 #include "pbd/fastlog.h"
  27
  28 #include "ardour_ui.h"
  29 #include "panner_ui.h"
  30 #include "panner2d.h"
  31 #include "utils.h"
  32 #include "panner.h"
  33 #include "gui_thread.h"
  34
  35 #include "ardour/delivery.h"
  36 #include "ardour/session.h"
  37 #include "ardour/panner.h"
  38 #include "ardour/route.h"
  39
  40 #include "i18n.h"
  41
  42 using namespace std;
  43 using namespace ARDOUR;
  44 using namespace PBD;
  45 using namespace Gtkmm2ext;
  46 using namespace Gtk;
  47
  48 const int PannerUI::pan_bar_height = 20;
  49 Glib::RefPtr<Gdk::Pixbuf> PannerUI::_poswidth_slider;
  50
  51 PannerUI::PannerUI (Session* s)
  52         : _current_nouts (-1)
  53         , _current_npans (-1)
  54         , hAdjustment(0.0, 0.0, 0.0)
  55         , vAdjustment(0.0, 0.0, 0.0)
  56         , panning_viewport(hAdjustment, vAdjustment)
  57         , panning_up_arrow (Gtk::ARROW_UP, Gtk::SHADOW_OUT)
  58         , panning_down_arrow (Gtk::ARROW_DOWN, Gtk::SHADOW_OUT)
  59         , _position_adjustment (0.5, 0.0, 1.0, 0.01, 0.1)
  60         , _width_adjustment (0.0, -1.0, 1.0, 0.01, 0.1)
  61         , panning_link_button (_("link"))
  62         , pan_automation_style_button ("")
  63         , pan_automation_state_button ("")
  64         , _bar_spinner_active (false)
  65 {
  66         set_session (s);
  67
  68         ignore_toggle = false;
  69         pan_menu = 0;
  70         pan_astate_menu = 0;
  71         pan_astyle_menu = 0;
  72         in_pan_update = false;
  73         _position_fader = 0;
  74         _width_fader = 0;
  75         _ignore_width_change = false;
  76         _ignore_position_change = false;
  77
  78         pan_automation_style_button.set_name ("MixerAutomationModeButton");
  79         pan_automation_state_button.set_name ("MixerAutomationPlaybackButton");
  80
  81         ARDOUR_UI::instance()->set_tip (pan_automation_state_button, _("Pan automation mode"));
  82         ARDOUR_UI::instance()->set_tip (pan_automation_style_button, _("Pan automation type"));
  83
  84         //set_size_request_to_display_given_text (pan_automation_state_button, X_("O"), 2, 2);
  85         //set_size_request_to_display_given_text (pan_automation_style_button, X_("0"), 2, 2);
  86
  87         panning_viewport.set_name (X_("BaseFrame"));
  88
  89         ARDOUR_UI::instance()->set_tip (panning_link_button,
  90                                                    _("panning link control"));
  91         ARDOUR_UI::instance()->set_tip (panning_link_direction_button,
  92                                                    _("panning link direction"));
  93
  94         pan_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
  95         pan_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
  96
  97         pan_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &PannerUI::pan_automation_style_button_event), false);
  98         pan_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &PannerUI::pan_automation_state_button_event), false);
  99
 100         panning_link_button.set_name (X_("PanningLinkButton"));
 101         panning_link_direction_button.set_name (X_("PanningLinkDirectionButton"));
 102
 103         panning_link_box.pack_start (panning_link_button, true, true);
 104         panning_link_box.pack_start (panning_link_direction_button, true, true);
 105         panning_link_box.pack_start (pan_automation_state_button, true, true);
 106
 107         /* the pixmap will be reset at some point, but the key thing is that
 108            we need a pixmap in the button just to get started.
 109         */
 110         panning_link_direction_button.add (*(manage (new Image (get_xpm("forwardblarrow.xpm")))));
 111
 112         panning_link_direction_button.signal_clicked().connect
 113                 (sigc::mem_fun(*this, &PannerUI::panning_link_direction_clicked));
 114
 115         panning_link_button.signal_button_press_event().connect
 116                 (sigc::mem_fun(*this, &PannerUI::panning_link_button_press), false);
 117         panning_link_button.signal_button_release_event().connect
 118                 (sigc::mem_fun(*this, &PannerUI::panning_link_button_release), false);
 119
 120         panning_up.set_border_width (3);
 121         panning_down.set_border_width (3);
 122         panning_up.add (panning_up_arrow);
 123         panning_down.add (panning_down_arrow);
 124         panning_up.set_name (X_("PanScrollerBase"));
 125         panning_down.set_name (X_("PanScrollerBase"));
 126         panning_up_arrow.set_name (X_("PanScrollerArrow"));
 127         panning_down_arrow.set_name (X_("PanScrollerArrow"));
 128
 129         pan_vbox.set_spacing (2);
 130         pan_vbox.pack_start (panning_viewport, Gtk::PACK_SHRINK);
 131         pan_vbox.pack_start (panning_link_box, Gtk::PACK_SHRINK);
 132
 133         pack_start (pan_vbox, true, true);
 134
 135         twod_panner = 0;
 136         big_window = 0;
 137
 138         set_width(Narrow);
 139 }
 140
 141 void
 142 PannerUI::set_panner (boost::shared_ptr<Panner> p)
 143 {
 144         connections.drop_connections ();
 145
 146         delete pan_astyle_menu;
 147         pan_astyle_menu = 0;
 148
 149         delete pan_astate_menu;
 150         pan_astate_menu = 0;
 151
 152         _panner = p;
 153
 154         delete twod_panner;
 155         twod_panner = 0;
 156
 157         if (!_panner) {
 158                 return;
 159         }
 160
 161         _panner->Changed.connect (connections, invalidator (*this), boost::bind (&PannerUI::panner_changed, this, this), gui_context());
 162         _panner->LinkStateChanged.connect (connections, invalidator (*this), boost::bind (&PannerUI::update_pan_linkage, this), gui_context());
 163         _panner->StateChanged.connect (connections, invalidator (*this), boost::bind (&PannerUI::update_pan_state, this), gui_context());
 164
 165         panner_changed (0);
 166         update_pan_sensitive ();
 167         update_pan_linkage ();
 168         pan_automation_state_changed ();
 169 }
 170
 171 void
 172 PannerUI::build_astate_menu ()
 173 {
 174         using namespace Menu_Helpers;
 175
 176         if (pan_astate_menu == 0) {
 177                 pan_astate_menu = new Menu;
 178                 pan_astate_menu->set_name ("ArdourContextMenu");
 179         } else {
 180                 pan_astate_menu->items().clear ();
 181         }
 182
 183         pan_astate_menu->items().push_back (MenuElem (_("Manual"), sigc::bind (
 184                         sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
 185                         (AutoState) Off)));
 186         pan_astate_menu->items().push_back (MenuElem (_("Play"), sigc::bind (
 187                         sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
 188                         (AutoState) Play)));
 189         pan_astate_menu->items().push_back (MenuElem (_("Write"), sigc::bind (
 190                         sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
 191                         (AutoState) Write)));
 192         pan_astate_menu->items().push_back (MenuElem (_("Touch"), sigc::bind (
 193                         sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
 194                         (AutoState) Touch)));
 195
 196 }
 197
 198 void
 199 PannerUI::build_astyle_menu ()
 200 {
 201         using namespace Menu_Helpers;
 202
 203         if (pan_astyle_menu == 0) {
 204                 pan_astyle_menu = new Menu;
 205                 pan_astyle_menu->set_name ("ArdourContextMenu");
 206         } else {
 207                 pan_astyle_menu->items().clear();
 208         }
 209
 210         pan_astyle_menu->items().push_back (MenuElem (_("Trim")));
 211         pan_astyle_menu->items().push_back (MenuElem (_("Abs")));
 212 }
 213
 214 boost::shared_ptr<PBD::Controllable>
 215 PannerUI::get_controllable()
 216 {
 217         return pan_bars[0]->get_controllable();
 218 }
 219
 220 bool
 221 PannerUI::panning_link_button_press (GdkEventButton*)
 222 {
 223         return true;
 224 }
 225
 226 bool
 227 PannerUI::panning_link_button_release (GdkEventButton*)
 228 {
 229         if (!ignore_toggle) {
 230                 _panner->set_linked (!_panner->linked());
 231         }
 232         return true;
 233 }
 234
 235 void
 236 PannerUI::panning_link_direction_clicked()
 237 {
 238         switch (_panner->link_direction()) {
 239         case Panner::SameDirection:
 240                 _panner->set_link_direction (Panner::OppositeDirection);
 241                 break;
 242         default:
 243                 _panner->set_link_direction (Panner::SameDirection);
 244                 break;
 245         }
 246 }
 247
 248 void
 249 PannerUI::update_pan_linkage ()
 250 {
 251         ENSURE_GUI_THREAD (*this, &PannerUI::update_pan_linkage)
 252
 253         bool const x = _panner->linked();
 254         bool const bx = panning_link_button.get_active();
 255
 256         if (x != bx) {
 257
 258                 ignore_toggle = true;
 259                 panning_link_button.set_active (x);
 260                 ignore_toggle = false;
 261         }
 262
 263         panning_link_direction_button.set_sensitive (x);
 264
 265         switch (_panner->link_direction()) {
 266         case Panner::SameDirection:
 267                 panning_link_direction_button.set_image (*(manage (new Image (get_xpm ("forwardblarrow.xpm")))));
 268                 break;
 269         default:
 270                 panning_link_direction_button.set_image (*(manage (new Image (get_xpm("revdblarrow.xpm")))));
 271                 break;
 272         }
 273 }
 274
 275 void
 276 PannerUI::on_size_allocate (Allocation& a)
 277 {
 278         HBox::on_size_allocate (a);
 279 }
 280
 281 void
 282 PannerUI::set_width (Width w)
 283 {
 284         switch (w) {
 285         case Wide:
 286                 panning_link_button.set_label (_("link"));
 287                 break;
 288         case Narrow:
 289                 panning_link_button.set_label (_("L"));
 290                 break;
 291         }
 292
 293         _width = w;
 294 }
 295
 296
 297 PannerUI::~PannerUI ()
 298 {
 299         for (vector<Adjustment*>::iterator i = pan_adjustments.begin(); i != pan_adjustments.end(); ++i) {
 300                 delete (*i);
 301         }
 302
 303         for (vector<PannerBar*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
 304                 delete (*i);
 305         }
 306
 307         delete twod_panner;
 308         delete big_window;
 309         delete pan_menu;
 310         delete pan_astyle_menu;
 311         delete pan_astate_menu;
 312         delete _position_fader;
 313         delete _width_fader;
 314 }
 315
 316
 317 void
 318 PannerUI::panner_changed (void* src)
 319 {
 320         ENSURE_GUI_THREAD (*this, &PannerUI::panner_changed)
 321
 322         setup_pan ();
 323
 324         if (src == this) {
 325                 return;
 326         }
 327
 328         switch (_panner->npanners()) {
 329         case 0:
 330                 panning_link_direction_button.set_sensitive (false);
 331                 panning_link_button.set_sensitive (false);
 332                 return;
 333         case 1:
 334                 panning_link_direction_button.set_sensitive (false);
 335                 panning_link_button.set_sensitive (false);
 336                 break;
 337         default:
 338                 panning_link_direction_button.set_sensitive (_panner->linked ());
 339                 panning_link_button.set_sensitive (true);
 340         }
 341
 342         uint32_t const nouts = _panner->nouts();
 343
 344         switch (nouts) {
 345         case 0:
 346         case 1:
 347                 /* relax */
 348                 break;
 349
 350         case 2:
 351                 /* bring pan bar state up to date */
 352                 update_pan_bars (false);
 353                 break;
 354
 355         default:
 356                 // panner->move_puck (pan_value (pans[0], pans[1]), 0.5);
 357                 break;
 358         }
 359 }
 360
 361 void
 362 PannerUI::update_pan_state ()
 363 {
 364         /* currently nothing to do */
 365         // ENSURE_GUI_THREAD (*this, &PannerUI::update_panner_state)
 366 }
 367
 368 void
 369 PannerUI::setup_pan ()
 370 {
 371         if (!_panner) {
 372                 return;
 373         }
 374
 375         uint32_t const nouts = _panner->nouts();
 376         uint32_t const npans = _panner->npanners();
 377
 378         if (int32_t (nouts) == _current_nouts && int32_t (npans) == _current_npans) {
 379                 return;
 380         }
 381
 382         _pan_control_connections.drop_connections ();
 383         for (uint32_t i = 0; i < _panner->npanners(); ++i) {
 384                 connect_to_pan_control (i);
 385         }
 386
 387         _current_nouts = nouts;
 388         _current_npans = npans;
 389
 390         if (nouts == 0 || nouts == 1) {
 391
 392                 while (!pan_adjustments.empty()) {
 393                         delete pan_bars.back();
 394                         pan_bars.pop_back ();
 395                         delete pan_adjustments.back();
 396                         pan_adjustments.pop_back ();
 397                 }
 398
 399                 delete twod_panner;
 400                 twod_panner = 0;
 401
 402                 /* stick something into the panning viewport so that it redraws */
 403
 404                 EventBox* eb = manage (new EventBox());
 405                 panning_viewport.remove ();
 406                 panning_viewport.add (*eb);
 407                 panning_viewport.show_all ();
 408
 409         } else if (nouts == 2) {
 410
 411                 vector<Adjustment*>::size_type asz;
 412
 413                 while (!pan_adjustments.empty()) {
 414                         delete pan_bars.back();
 415                         pan_bars.pop_back ();
 416                         delete pan_adjustments.back();
 417                         pan_adjustments.pop_back ();
 418                 }
 419
 420                 delete twod_panner;
 421                 twod_panner = 0;
 422
 423                 while ((asz = pan_adjustments.size()) < npans) {
 424
 425                         float x, rx;
 426                         PannerBar* bc;
 427
 428                         /* initialize adjustment with 0.0 (L) or 1.0 (R) for the first and second panners,
 429                            which serves as a default, otherwise use current value */
 430
 431                         rx = _panner->pan_control( asz)->get_value();
 432
 433                         if (npans == 1) {
 434                                 x = 0.5;
 435                         } else if (asz == 0) {
 436                                 x = 0.0;
 437                         } else if (asz == 1) {
 438                                 x = 1.0;
 439                         } else {
 440                                 x = rx;
 441                         }
 442
 443                         pan_adjustments.push_back (new Adjustment (x, 0, 1.0, 0.005, 0.05));
 444                         bc = new PannerBar (*pan_adjustments[asz],
 445                                 boost::static_pointer_cast<PBD::Controllable>( _panner->pan_control( asz )) );
 446
 447                         /* now set adjustment with current value of panner, then connect the signals */
 448                         pan_adjustments.back()->set_value(rx);
 449                         pan_adjustments.back()->signal_value_changed().connect (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_adjustment_changed), (uint32_t) asz));
 450                         connect_to_pan_control (asz);
 451
 452                         bc->set_name ("PanSlider");
 453                         bc->set_shadow_type (Gtk::SHADOW_NONE);
 454
 455                         boost::shared_ptr<AutomationControl> ac = _panner->pan_control (asz);
 456
 457                         if (asz) {
 458                                 bc->StartGesture.connect (sigc::bind (sigc::mem_fun (*this, &PannerUI::start_touch),
 459                                                                       boost::weak_ptr<AutomationControl> (ac)));
 460                                 bc->StopGesture.connect (sigc::bind (sigc::mem_fun (*this, &PannerUI::stop_touch),
 461                                                                      boost::weak_ptr<AutomationControl>(ac)));
 462                         }
 463
 464                         char buf[64];
 465                         snprintf (buf, sizeof (buf), _("panner for channel %zu"), asz + 1);
 466                         ARDOUR_UI::instance()->set_tip (bc->event_widget(), buf);
 467
 468                         bc->event_widget().signal_button_release_event().connect
 469                                 (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_button_event), (uint32_t) asz));
 470
 471                         bc->set_size_request (-1, pan_bar_height);
 472                         bc->SpinnerActive.connect (sigc::mem_fun (*this, &PannerUI::bar_spinner_activate));
 473
 474                         pan_bars.push_back (bc);
 475                         pan_bar_packer.pack_start (*bc, false, false);
 476                 }
 477
 478                 /* now that we actually have the pan bars,
 479                    set their sensitivity based on current
 480                    automation state.
 481                 */
 482
 483                 update_pan_sensitive ();
 484
 485                 panning_viewport.remove ();
 486                 panning_viewport.add (pan_bar_packer);
 487                 panning_viewport.show_all ();
 488
 489                 if (npans == 2) {
 490                         /* add position and width controls */
 491                         if (_position_fader == 0) {
 492                                 _position_fader = new BarController (_position_adjustment, _panner->direction_control());
 493                                 _position_fader->set_size_request (-1, pan_bar_height/2);
 494                                 _position_fader->set_name ("PanSlider");
 495                                 _position_fader->set_style (BarController::Line);
 496                                 ARDOUR_UI::instance()->set_tip (_position_fader, _("Pan Position"));
 497                                 _position_adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &PannerUI::position_adjusted));
 498                                 _panner->direction_control()->Changed.connect (connections, invalidator (*this), boost::bind (&PannerUI::show_position, this), gui_context());
 499                                 show_position();
 500
 501                                 _width_fader = new BarController (_width_adjustment, _panner->width_control());
 502                                 _width_fader->set_size_request (-1, pan_bar_height/2);
 503                                 _width_fader->set_name ("PanSlider");
 504                                 _width_fader->set_style (BarController::CenterOut);
 505                                 ARDOUR_UI::instance()->set_tip (_width_fader, _("Stereo Image Width"));
 506                                 _width_adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &PannerUI::width_adjusted));
 507                                  _panner->width_control()->Changed.connect (connections, invalidator (*this), boost::bind (&PannerUI::show_width, this), gui_context());
 508                                 show_width();
 509
 510                                 poswidth_box.pack_start (*_position_fader, true, true);
 511                                 poswidth_box.pack_start (*_width_fader, true, true);
 512                         }
 513                         pan_vbox.pack_start (poswidth_box, false, false);
 514                         poswidth_box.show_all ();
 515                         cerr << "Packed poswidth and mde it visible\n";
 516                 } else {
 517                         if (_position_fader) {
 518                                 pan_vbox.remove (poswidth_box);
 519                                 cerr << "Hid poswidth\n";
 520                         }
 521                 }
 522
 523         } else {
 524
 525                 if (!twod_panner) {
 526                         twod_panner = new Panner2d (_panner, 61);
 527                         twod_panner->set_name ("MixerPanZone");
 528                         twod_panner->show ();
 529
 530                         twod_panner->signal_button_press_event().connect
 531                                 (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_button_event), (uint32_t) 0), false);
 532                 }
 533
 534                 update_pan_sensitive ();
 535                 twod_panner->reset (npans);
 536                 if (big_window) {
 537                         big_window->reset (npans);
 538                 }
 539                 twod_panner->set_size_request (-1, 61);
 540
 541                 /* and finally, add it to the panner frame */
 542
 543                 panning_viewport.remove ();
 544                 panning_viewport.add (*twod_panner);
 545                 panning_viewport.show_all ();
 546         }
 547 }
 548
 549 void
 550 PannerUI::start_touch (boost::weak_ptr<AutomationControl> wac)
 551 {
 552         boost::shared_ptr<AutomationControl> ac = wac.lock();
 553         if (!ac) {
 554                 return;
 555         }
 556         ac->start_touch (ac->session().transport_frame());
 557 }
 558
 559 void
 560 PannerUI::stop_touch (boost::weak_ptr<AutomationControl> wac)
 561 {
 562         boost::shared_ptr<AutomationControl> ac = wac.lock();
 563         if (!ac) {
 564                 return;
 565         }
 566         ac->stop_touch (false, ac->session().transport_frame());
 567 }
 568
 569 bool
 570 PannerUI::pan_button_event (GdkEventButton* ev, uint32_t which)
 571 {
 572         switch (ev->button) {
 573         case 1:
 574                 if (twod_panner && ev->type == GDK_2BUTTON_PRESS) {
 575                         if (!big_window) {
 576                                 big_window = new Panner2dWindow (_panner, 400, _panner->npanners());
 577                         }
 578                         big_window->show ();
 579                         return true;
 580                 }
 581                 break;
 582
 583         case 3:
 584                 if (pan_menu == 0) {
 585                         pan_menu = manage (new Menu);
 586                         pan_menu->set_name ("ArdourContextMenu");
 587                 }
 588                 build_pan_menu (which);
 589                 pan_menu->popup (1, ev->time);
 590                 return true;
 591                 break;
 592         default:
 593                 return false;
 594         }
 595
 596         return false; // what's wrong with gcc?
 597 }
 598
 599 void
 600 PannerUI::build_pan_menu (uint32_t which)
 601 {
 602         using namespace Menu_Helpers;
 603         MenuList& items (pan_menu->items());
 604
 605         items.clear ();
 606
 607         items.push_back (CheckMenuElem (_("Mute")));
 608
 609         /* set state first, connect second */
 610
 611         (dynamic_cast<CheckMenuItem*> (&items.back()))->set_active (_panner->streampanner(which).muted());
 612         (dynamic_cast<CheckMenuItem*> (&items.back()))->signal_toggled().connect
 613                 (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_mute), which));
 614
 615         items.push_back (CheckMenuElem (_("Bypass"), sigc::mem_fun(*this, &PannerUI::pan_bypass_toggle)));
 616         bypass_menu_item = static_cast<CheckMenuItem*> (&items.back());
 617
 618         /* set state first, connect second */
 619
 620         bypass_menu_item->set_active (_panner->bypassed());
 621         bypass_menu_item->signal_toggled().connect (sigc::mem_fun(*this, &PannerUI::pan_bypass_toggle));
 622
 623         items.push_back (MenuElem (_("Reset"), sigc::bind (sigc::mem_fun (*this, &PannerUI::pan_reset), which)));
 624         items.push_back (SeparatorElem());
 625         items.push_back (MenuElem (_("Reset all"), sigc::mem_fun (*this, &PannerUI::pan_reset_all)));
 626 }
 627
 628 void
 629 PannerUI::pan_mute (uint32_t which)
 630 {
 631         StreamPanner& sp = _panner->streampanner(which);
 632         sp.set_muted (!sp.muted());
 633 }
 634
 635 void
 636 PannerUI::pan_bypass_toggle ()
 637 {
 638         if (bypass_menu_item && (_panner->bypassed() != bypass_menu_item->get_active())) {
 639                 _panner->set_bypassed (!_panner->bypassed());
 640         }
 641 }
 642
 643 void
 644 PannerUI::pan_reset (uint32_t which)
 645 {
 646         _panner->reset_streampanner (which);
 647 }
 648
 649 void
 650 PannerUI::pan_reset_all ()
 651 {
 652         _panner->reset_to_default ();
 653 }
 654
 655 void
 656 PannerUI::effective_pan_display ()
 657 {
 658         if (_panner->empty()) {
 659                 return;
 660         }
 661
 662         switch (_panner->nouts()) {
 663         case 0:
 664         case 1:
 665                 /* relax */
 666                 break;
 667
 668         case 2:
 669                 update_pan_bars (true);
 670                 break;
 671
 672         default:
 673                 //panner->move_puck (pan_value (v, right), 0.5);
 674                 break;
 675         }
 676 }
 677
 678 void
 679 PannerUI::pan_adjustment_changed (uint32_t which)
 680 {
 681         if (!in_pan_update && which < _panner->npanners()) {
 682
 683                 float val = pan_adjustments[which]->get_value ();
 684                 float const xpos = _panner->pan_control(which)->get_value();
 685
 686                 /* add a kinda-sorta detent for the middle */
 687
 688                 if (val != 0.5 && Panner::equivalent (val, 0.5)) {
 689                         /* this is going to be reentrant, so just
 690                            return after it.
 691                         */
 692
 693                         in_pan_update = true;
 694                         pan_adjustments[which]->set_value (0.5);
 695                         in_pan_update = false;
 696                         return;
 697                 }
 698
 699                 if (!Panner::equivalent (val, xpos)) {
 700
 701                         _panner->pan_control(which)->set_value (val);
 702                         /* XXX
 703                            the panner objects have no access to the session,
 704                            so do this here. ick.
 705                         */
 706                         _session->set_dirty();
 707                 }
 708         }
 709 }
 710
 711 void
 712 PannerUI::pan_value_changed (uint32_t which)
 713 {
 714         ENSURE_GUI_THREAD (*this, &PannerUI::pan_value_changed, which)
 715
 716         if (twod_panner) {
 717
 718                 in_pan_update = true;
 719                 twod_panner->move_puck (which, _panner->streampanner(which).get_position());
 720                 in_pan_update = false;
 721
 722         } else if (_panner->npanners() > 0 && which < _panner->npanners()) {
 723                 AngularVector model = _panner->streampanner(which).get_position();
 724                 double fract = pan_adjustments[which]->get_value();
 725                 AngularVector view (BaseStereoPanner::lr_fract_to_azimuth (fract), 0.0);
 726
 727                 if (!Panner::equivalent (model, view)) {
 728                         in_pan_update = true;
 729                         pan_adjustments[which]->set_value (BaseStereoPanner::azimuth_to_lr_fract (model.azi));
 730                         in_pan_update = false;
 731                 }
 732         }
 733 }
 734
 735 void
 736 PannerUI::update_pan_bars (bool only_if_aplay)
 737 {
 738         uint32_t n;
 739         vector<Adjustment*>::iterator i;
 740
 741         in_pan_update = true;
 742
 743         /* this runs during automation playback, and moves the bar controllers
 744            and/or pucks around.
 745         */
 746
 747         for (i = pan_adjustments.begin(), n = 0; i != pan_adjustments.end(); ++i, ++n) {
 748
 749                 if (only_if_aplay) {
 750                         boost::shared_ptr<AutomationList> alist (_panner->streampanner(n).pan_control()->alist());
 751
 752                         if (!alist->automation_playback()) {
 753                                 continue;
 754                         }
 755                 }
 756
 757                 AngularVector model = _panner->streampanner(n).get_effective_position();
 758                 double fract = (*i)->get_value();
 759                 AngularVector view (BaseStereoPanner::lr_fract_to_azimuth (fract), 0.0);
 760
 761                 if (!Panner::equivalent (model, view)) {
 762                         (*i)->set_value (BaseStereoPanner::azimuth_to_lr_fract (model.azi));
 763                 }
 764         }
 765
 766         in_pan_update = false;
 767 }
 768
 769 void
 770 PannerUI::update_pan_sensitive ()
 771 {
 772         bool const sensitive = !(_panner->mono()) && !(_panner->automation_state() & Play);
 773
 774         switch (_panner->nouts()) {
 775         case 0:
 776         case 1:
 777                 break;
 778         case 2:
 779                 for (vector<PannerBar*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
 780                         (*i)->set_sensitive (sensitive);
 781                 }
 782                 break;
 783         default:
 784                 if (twod_panner) {
 785                         twod_panner->set_sensitive (sensitive);
 786                 }
 787                 if (big_window) {
 788                         big_window->set_sensitive (sensitive);
 789                 }
 790                 break;
 791         }
 792 }
 793
 794 gint
 795 PannerUI::pan_automation_state_button_event (GdkEventButton *ev)
 796 {
 797         using namespace Menu_Helpers;
 798
 799         if (ev->type == GDK_BUTTON_RELEASE) {
 800                 return TRUE;
 801         }
 802
 803         switch (ev->button) {
 804         case 1:
 805                 if (pan_astate_menu == 0) {
 806                         build_astate_menu ();
 807                 }
 808                 pan_astate_menu->popup (1, ev->time);
 809                 break;
 810         default:
 811                 break;
 812         }
 813
 814         return TRUE;
 815 }
 816
 817 gint
 818 PannerUI::pan_automation_style_button_event (GdkEventButton *ev)
 819 {
 820         if (ev->type == GDK_BUTTON_RELEASE) {
 821                 return TRUE;
 822         }
 823
 824         switch (ev->button) {
 825         case 1:
 826                 if (pan_astyle_menu == 0) {
 827                         build_astyle_menu ();
 828                 }
 829                 pan_astyle_menu->popup (1, ev->time);
 830                 break;
 831         default:
 832                 break;
 833         }
 834         return TRUE;
 835 }
 836
 837 void
 838 PannerUI::pan_automation_style_changed ()
 839 {
 840         ENSURE_GUI_THREAD (*this, &PannerUI::pan_automation_style_changed)
 841
 842         switch (_width) {
 843         case Wide:
 844                 pan_automation_style_button.set_label (astyle_string(_panner->automation_style()));
 845                 break;
 846         case Narrow:
 847                 pan_automation_style_button.set_label (short_astyle_string(_panner->automation_style()));
 848                 break;
 849         }
 850 }
 851
 852 void
 853 PannerUI::pan_automation_state_changed ()
 854 {
 855         ENSURE_GUI_THREAD (*this, &PannerUI::pan_automation_state_changed)
 856
 857         bool x;
 858
 859         switch (_width) {
 860         case Wide:
 861           pan_automation_state_button.set_label (astate_string(_panner->automation_state()));
 862                 break;
 863         case Narrow:
 864           pan_automation_state_button.set_label (short_astate_string(_panner->automation_state()));
 865                 break;
 866         }
 867
 868         /* when creating a new session, we get to create busses (and
 869            sometimes tracks) with no outputs by the time they get
 870            here.
 871         */
 872
 873         if (_panner->empty()) {
 874                 return;
 875         }
 876
 877         x = (_panner->streampanner(0).pan_control()->alist()->automation_state() != Off);
 878
 879         if (pan_automation_state_button.get_active() != x) {
 880         ignore_toggle = true;
 881                 pan_automation_state_button.set_active (x);
 882                 ignore_toggle = false;
 883         }
 884
 885         update_pan_sensitive ();
 886
 887         /* start watching automation so that things move */
 888
 889         pan_watching.disconnect();
 890
 891         if (x) {
 892                 pan_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &PannerUI::effective_pan_display));
 893         }
 894 }
 895
 896 string
 897 PannerUI::astate_string (AutoState state)
 898 {
 899         return _astate_string (state, false);
 900 }
 901
 902 string
 903 PannerUI::short_astate_string (AutoState state)
 904 {
 905         return _astate_string (state, true);
 906 }
 907
 908 string
 909 PannerUI::_astate_string (AutoState state, bool shrt)
 910 {
 911         string sstr;
 912
 913         switch (state) {
 914         case Off:
 915                 sstr = (shrt ? "M" : _("M"));
 916                 break;
 917         case Play:
 918                 sstr = (shrt ? "P" : _("P"));
 919                 break;
 920         case Touch:
 921                 sstr = (shrt ? "T" : _("T"));
 922                 break;
 923         case Write:
 924                 sstr = (shrt ? "W" : _("W"));
 925                 break;
 926         }
 927
 928         return sstr;
 929 }
 930
 931 string
 932 PannerUI::astyle_string (AutoStyle style)
 933 {
 934         return _astyle_string (style, false);
 935 }
 936
 937 string
 938 PannerUI::short_astyle_string (AutoStyle style)
 939 {
 940         return _astyle_string (style, true);
 941 }
 942
 943 string
 944 PannerUI::_astyle_string (AutoStyle style, bool shrt)
 945 {
 946         if (style & Trim) {
 947                 return _("Trim");
 948         } else {
 949                 /* XXX it might different in different languages */
 950
 951                 return (shrt ? _("Abs") : _("Abs"));
 952         }
 953 }
 954
 955 void
 956 PannerUI::set_mono (bool yn)
 957 {
 958         _panner->set_mono (yn);
 959         update_pan_sensitive ();
 960 }
 961
 962
 963 void
 964 PannerUI::connect_to_pan_control (uint32_t i)
 965 {
 966         _panner->pan_control(i)->Changed.connect (
 967                 _pan_control_connections, invalidator (*this), boost::bind (&PannerUI::pan_value_changed, this, i), gui_context ()
 968                 );
 969 }
 970
 971 void
 972 PannerUI::bar_spinner_activate (bool a)
 973 {
 974         _bar_spinner_active = a;
 975 }
 976
 977 void
 978 PannerUI::setup_slider_pix ()
 979 {
 980         _poswidth_slider = ::get_icon ("fader_belt_h_thin");
 981         assert (_poswidth_slider);
 982 }
 983
 984 void
 985 PannerUI::show_width ()
 986 {
 987         float const value = _panner->width_control()->get_value ();
 988
 989         if (_width_adjustment.get_value() != value) {
 990                 _ignore_width_change = true;
 991                 _width_adjustment.set_value (value);
 992                 _ignore_width_change = false;
 993         }
 994 }
 995
 996 void
 997 PannerUI::width_adjusted ()
 998 {
 999         if (_ignore_width_change) {
1000                 return;
1001         }
1002
1003         _panner->width_control()->set_value (_width_adjustment.get_value());
1004 }
1005
1006 void
1007 PannerUI::show_position ()
1008 {
1009         float const value = _panner->direction_control()->get_value ();
1010
1011         if (_position_adjustment.get_value() != value) {
1012                 _ignore_position_change = true;
1013                 _position_adjustment.set_value (value);
1014                 _ignore_position_change = false;
1015         }
1016 }
1017
1018 void
1019 PannerUI::position_adjusted ()
1020 {
1021         if (_ignore_position_change) {
1022                 return;
1023         }
1024
1025         _panner->direction_control()->set_value (_position_adjustment.get_value());
1026 }