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
  49 const int PannerUI::pan_bar_height = 30;
  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         , panning_link_button (_("link"))
  60         , pan_automation_style_button ("")
  61         , pan_automation_state_button ("")
  62 {
  63         set_session (s);
  64
  65         ignore_toggle = false;
  66         pan_menu = 0;
  67         pan_astate_menu = 0;
  68         pan_astyle_menu = 0;
  69         in_pan_update = false;
  70
  71         pan_automation_style_button.set_name ("MixerAutomationModeButton");
  72         pan_automation_state_button.set_name ("MixerAutomationPlaybackButton");
  73
  74         ARDOUR_UI::instance()->set_tip (pan_automation_state_button, _("Pan automation mode"));
  75         ARDOUR_UI::instance()->set_tip (pan_automation_style_button, _("Pan automation type"));
  76
  77         //set_size_request_to_display_given_text (pan_automation_state_button, X_("O"), 2, 2);
  78         //set_size_request_to_display_given_text (pan_automation_style_button, X_("0"), 2, 2);
  79
  80         panning_viewport.set_name (X_("BaseFrame"));
  81
  82         ARDOUR_UI::instance()->set_tip (panning_link_button,
  83                                                    _("panning link control"));
  84         ARDOUR_UI::instance()->set_tip (panning_link_direction_button,
  85                                                    _("panning link direction"));
  86
  87         pan_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
  88         pan_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
  89
  90         pan_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &PannerUI::pan_automation_style_button_event), false);
  91         pan_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &PannerUI::pan_automation_state_button_event), false);
  92
  93         panning_link_button.set_name (X_("PanningLinkButton"));
  94         panning_link_direction_button.set_name (X_("PanningLinkDirectionButton"));
  95
  96         panning_link_box.pack_start (panning_link_button, true, true);
  97         panning_link_box.pack_start (panning_link_direction_button, true, true);
  98         panning_link_box.pack_start (pan_automation_state_button, true, true);
  99
 100         /* the pixmap will be reset at some point, but the key thing is that
 101            we need a pixmap in the button just to get started.
 102         */
 103         panning_link_direction_button.add (*(manage (new Image (get_xpm("forwardblarrow.xpm")))));
 104
 105         panning_link_direction_button.signal_clicked().connect
 106                 (sigc::mem_fun(*this, &PannerUI::panning_link_direction_clicked));
 107
 108         panning_link_button.signal_button_press_event().connect
 109                 (sigc::mem_fun(*this, &PannerUI::panning_link_button_press), false);
 110         panning_link_button.signal_button_release_event().connect
 111                 (sigc::mem_fun(*this, &PannerUI::panning_link_button_release), false);
 112
 113         panning_up.set_border_width (3);
 114         panning_down.set_border_width (3);
 115         panning_up.add (panning_up_arrow);
 116         panning_down.add (panning_down_arrow);
 117         panning_up.set_name (X_("PanScrollerBase"));
 118         panning_down.set_name (X_("PanScrollerBase"));
 119         panning_up_arrow.set_name (X_("PanScrollerArrow"));
 120         panning_down_arrow.set_name (X_("PanScrollerArrow"));
 121
 122         pan_vbox.set_spacing (2);
 123         pan_vbox.pack_start (panning_viewport, Gtk::PACK_SHRINK);
 124         pan_vbox.pack_start (panning_link_box, Gtk::PACK_SHRINK);
 125
 126         pack_start (pan_vbox, true, true);
 127
 128         twod_panner = 0;
 129         big_window = 0;
 130
 131         set_width(Narrow);
 132 }
 133
 134 void
 135 PannerUI::set_panner (boost::shared_ptr<Panner> p)
 136 {
 137         connections.drop_connections ();
 138
 139         delete pan_astyle_menu;
 140         pan_astyle_menu = 0;
 141
 142         delete pan_astate_menu;
 143         pan_astate_menu = 0;
 144
 145         _panner = p;
 146
 147         delete twod_panner;
 148         twod_panner = 0;
 149
 150         if (!_panner) {
 151                 return;
 152         }
 153
 154         _panner->Changed.connect (connections, invalidator (*this), boost::bind (&PannerUI::panner_changed, this), gui_context());
 155         _panner->LinkStateChanged.connect (connections, invalidator (*this), boost::bind (&PannerUI::update_pan_linkage, this), gui_context());
 156         _panner->StateChanged.connect (connections, invalidator (*this), boost::bind (&PannerUI::update_pan_state, this), gui_context());
 157
 158         setup_pan ();
 159
 160         pan_changed (0);
 161         update_pan_sensitive ();
 162         update_pan_linkage ();
 163         pan_automation_state_changed ();
 164 }
 165
 166 void
 167 PannerUI::build_astate_menu ()
 168 {
 169         using namespace Menu_Helpers;
 170
 171         if (pan_astate_menu == 0) {
 172                 pan_astate_menu = new Menu;
 173                 pan_astate_menu->set_name ("ArdourContextMenu");
 174         } else {
 175                 pan_astate_menu->items().clear ();
 176         }
 177
 178         pan_astate_menu->items().push_back (MenuElem (_("Manual"), sigc::bind (
 179                         sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
 180                         (AutoState) Off)));
 181         pan_astate_menu->items().push_back (MenuElem (_("Play"), sigc::bind (
 182                         sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
 183                         (AutoState) Play)));
 184         pan_astate_menu->items().push_back (MenuElem (_("Write"), sigc::bind (
 185                         sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
 186                         (AutoState) Write)));
 187         pan_astate_menu->items().push_back (MenuElem (_("Touch"), sigc::bind (
 188                         sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
 189                         (AutoState) Touch)));
 190
 191 }
 192
 193 void
 194 PannerUI::build_astyle_menu ()
 195 {
 196         using namespace Menu_Helpers;
 197
 198         if (pan_astyle_menu == 0) {
 199                 pan_astyle_menu = new Menu;
 200                 pan_astyle_menu->set_name ("ArdourContextMenu");
 201         } else {
 202                 pan_astyle_menu->items().clear();
 203         }
 204
 205         pan_astyle_menu->items().push_back (MenuElem (_("Trim")));
 206         pan_astyle_menu->items().push_back (MenuElem (_("Abs")));
 207 }
 208
 209 boost::shared_ptr<PBD::Controllable>
 210 PannerUI::get_controllable()
 211 {
 212         return pan_bars[0]->get_controllable();
 213 }
 214
 215 bool
 216 PannerUI::panning_link_button_press (GdkEventButton*)
 217 {
 218         return true;
 219 }
 220
 221 bool
 222 PannerUI::panning_link_button_release (GdkEventButton*)
 223 {
 224         if (!ignore_toggle) {
 225                 _panner->set_linked (!_panner->linked());
 226         }
 227         return true;
 228 }
 229
 230 void
 231 PannerUI::panning_link_direction_clicked()
 232 {
 233         switch (_panner->link_direction()) {
 234         case Panner::SameDirection:
 235                 _panner->set_link_direction (Panner::OppositeDirection);
 236                 break;
 237         default:
 238                 _panner->set_link_direction (Panner::SameDirection);
 239                 break;
 240         }
 241 }
 242
 243 void
 244 PannerUI::update_pan_linkage ()
 245 {
 246         ENSURE_GUI_THREAD (*this, &PannerUI::update_pan_linkage)
 247
 248         bool const x = _panner->linked();
 249         bool const bx = panning_link_button.get_active();
 250
 251         if (x != bx) {
 252
 253                 ignore_toggle = true;
 254                 panning_link_button.set_active (x);
 255                 ignore_toggle = false;
 256         }
 257
 258         panning_link_direction_button.set_sensitive (x);
 259
 260         switch (_panner->link_direction()) {
 261         case Panner::SameDirection:
 262                 panning_link_direction_button.set_image (*(manage (new Image (get_xpm ("forwardblarrow.xpm")))));
 263                 break;
 264         default:
 265                 panning_link_direction_button.set_image (*(manage (new Image (get_xpm("revdblarrow.xpm")))));
 266                 break;
 267         }
 268 }
 269
 270 void
 271 PannerUI::set_width (Width w)
 272 {
 273         switch (w) {
 274         case Wide:
 275                 panning_link_button.set_label (_("link"));
 276                 break;
 277         case Narrow:
 278                 panning_link_button.set_label (_("L"));
 279                 break;
 280         }
 281
 282         _width = w;
 283 }
 284
 285
 286 PannerUI::~PannerUI ()
 287 {
 288         for (vector<Adjustment*>::iterator i = pan_adjustments.begin(); i != pan_adjustments.end(); ++i) {
 289                 delete (*i);
 290         }
 291
 292         for (vector<PannerBar*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
 293                 delete (*i);
 294         }
 295
 296         delete twod_panner;
 297         delete big_window;
 298         delete pan_menu;
 299         delete pan_astyle_menu;
 300         delete pan_astate_menu;
 301 }
 302
 303
 304 void
 305 PannerUI::panner_changed ()
 306 {
 307         ENSURE_GUI_THREAD (*this, &PannerUI::panner_changed)
 308         setup_pan ();
 309         pan_changed (0);
 310 }
 311
 312 void
 313 PannerUI::update_pan_state ()
 314 {
 315         /* currently nothing to do */
 316         // ENSURE_GUI_THREAD (*this, &PannerUI::update_panner_state)
 317 }
 318
 319 void
 320 PannerUI::setup_pan ()
 321 {
 322         if (!_panner) {
 323                 return;
 324         }
 325
 326         uint32_t const nouts = _panner->nouts();
 327         uint32_t const npans = _panner->npanners();
 328
 329         if (int32_t (nouts) == _current_nouts && int32_t (npans) == _current_npans) {
 330                 return;
 331         }
 332
 333         _pan_control_connections.drop_connections ();
 334         for (uint32_t i = 0; i < _panner->npanners(); ++i) {
 335                 connect_to_pan_control (i);
 336         }
 337
 338         _current_nouts = nouts;
 339         _current_npans = npans;
 340
 341         if (nouts == 0 || nouts == 1) {
 342
 343                 while (!pan_adjustments.empty()) {
 344                         delete pan_bars.back();
 345                         pan_bars.pop_back ();
 346                         delete pan_adjustments.back();
 347                         pan_adjustments.pop_back ();
 348                 }
 349
 350                 delete twod_panner;
 351                 twod_panner = 0;
 352
 353                 /* stick something into the panning viewport so that it redraws */
 354
 355                 EventBox* eb = manage (new EventBox());
 356                 panning_viewport.remove ();
 357                 panning_viewport.add (*eb);
 358                 panning_viewport.show_all ();
 359
 360         } else if (nouts == 2) {
 361
 362                 vector<Adjustment*>::size_type asz;
 363
 364                 while (!pan_adjustments.empty()) {
 365                         delete pan_bars.back();
 366                         pan_bars.pop_back ();
 367                         delete pan_adjustments.back();
 368                         pan_adjustments.pop_back ();
 369                 }
 370
 371                 delete twod_panner;
 372                 twod_panner = 0;
 373
 374                 while ((asz = pan_adjustments.size()) < npans) {
 375
 376                         float x, rx;
 377                         PannerBar* bc;
 378
 379                         /* initialize adjustment with 0.0 (L) or 1.0 (R) for the first and second panners,
 380                            which serves as a default, otherwise use current value */
 381
 382                         rx = _panner->pan_control( asz)->get_value();
 383
 384                         if (npans == 1) {
 385                                 x = 0.5;
 386                         } else if (asz == 0) {
 387                                 x = 0.0;
 388                         } else if (asz == 1) {
 389                                 x = 1.0;
 390                         } else {
 391                                 x = rx;
 392                         }
 393
 394                         pan_adjustments.push_back (new Adjustment (x, 0, 1.0, 0.005, 0.05));
 395                         bc = new PannerBar (*pan_adjustments[asz],
 396                                 boost::static_pointer_cast<PBD::Controllable>( _panner->pan_control( asz )) );
 397
 398                         /* now set adjustment with current value of panner, then connect the signals */
 399                         pan_adjustments.back()->set_value(rx);
 400                         pan_adjustments.back()->signal_value_changed().connect (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_adjustment_changed), (uint32_t) asz));
 401                         connect_to_pan_control (asz);
 402
 403                         bc->set_name ("PanSlider");
 404                         bc->set_shadow_type (Gtk::SHADOW_NONE);
 405
 406                         boost::shared_ptr<AutomationControl> ac = _panner->pan_control (asz);
 407
 408                         if (asz) {
 409                                 bc->StartGesture.connect (sigc::mem_fun (*ac, &AutomationControl::start_touch));
 410                                 bc->StopGesture.connect (sigc::mem_fun (*ac, &AutomationControl::stop_touch));
 411                         }
 412
 413                         char buf[64];
 414                         snprintf (buf, sizeof (buf), _("panner for channel %zu"), asz + 1);
 415                         ARDOUR_UI::instance()->set_tip (bc->event_widget(), buf);
 416
 417                         bc->event_widget().signal_button_release_event().connect
 418                                 (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_button_event), (uint32_t) asz));
 419
 420                         bc->set_size_request (-1, pan_bar_height);
 421
 422                         pan_bars.push_back (bc);
 423                         pan_bar_packer.pack_start (*bc, false, false);
 424                 }
 425
 426                 /* now that we actually have the pan bars,
 427                    set their sensitivity based on current
 428                    automation state.
 429                 */
 430
 431                 update_pan_sensitive ();
 432
 433                 panning_viewport.remove ();
 434                 panning_viewport.add (pan_bar_packer);
 435                 panning_viewport.show_all ();
 436
 437         } else {
 438
 439                 if (!twod_panner) {
 440                         twod_panner = new Panner2d (_panner, 61);
 441                         twod_panner->set_name ("MixerPanZone");
 442                         twod_panner->show ();
 443
 444                         twod_panner->signal_button_press_event().connect
 445                                 (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_button_event), (uint32_t) 0), false);
 446                 }
 447
 448                 update_pan_sensitive ();
 449                 twod_panner->reset (npans);
 450                 if (big_window) {
 451                         big_window->reset (npans);
 452                 }
 453                 twod_panner->set_size_request (-1, 61);
 454
 455                 /* and finally, add it to the panner frame */
 456
 457                 panning_viewport.remove ();
 458                 panning_viewport.add (*twod_panner);
 459                 panning_viewport.show_all ();
 460         }
 461 }
 462
 463 bool
 464 PannerUI::pan_button_event (GdkEventButton* ev, uint32_t which)
 465 {
 466         switch (ev->button) {
 467         case 1:
 468                 if (twod_panner && ev->type == GDK_2BUTTON_PRESS) {
 469                         if (!big_window) {
 470                                 big_window = new Panner2dWindow (_panner, 400, _panner->npanners());
 471                         }
 472                         big_window->show ();
 473                         return true;
 474                 }
 475                 break;
 476
 477         case 3:
 478                 if (pan_menu == 0) {
 479                         pan_menu = manage (new Menu);
 480                         pan_menu->set_name ("ArdourContextMenu");
 481                 }
 482                 build_pan_menu (which);
 483                 pan_menu->popup (1, ev->time);
 484                 return true;
 485                 break;
 486         default:
 487                 return false;
 488         }
 489
 490         return false; // what's wrong with gcc?
 491 }
 492
 493 void
 494 PannerUI::build_pan_menu (uint32_t which)
 495 {
 496         using namespace Menu_Helpers;
 497         MenuList& items (pan_menu->items());
 498
 499         items.clear ();
 500
 501         items.push_back (CheckMenuElem (_("Mute")));
 502
 503         /* set state first, connect second */
 504
 505         (dynamic_cast<CheckMenuItem*> (&items.back()))->set_active (_panner->streampanner(which).muted());
 506         (dynamic_cast<CheckMenuItem*> (&items.back()))->signal_toggled().connect
 507                 (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_mute), which));
 508
 509         items.push_back (CheckMenuElem (_("Bypass"), sigc::mem_fun(*this, &PannerUI::pan_bypass_toggle)));
 510         bypass_menu_item = static_cast<CheckMenuItem*> (&items.back());
 511
 512         /* set state first, connect second */
 513
 514         bypass_menu_item->set_active (_panner->bypassed());
 515         bypass_menu_item->signal_toggled().connect (sigc::mem_fun(*this, &PannerUI::pan_bypass_toggle));
 516
 517         items.push_back (MenuElem (_("Reset"), sigc::bind (sigc::mem_fun (*this, &PannerUI::pan_reset), which)));
 518         items.push_back (SeparatorElem());
 519         items.push_back (MenuElem (_("Reset all"), sigc::mem_fun (*this, &PannerUI::pan_reset_all)));
 520 }
 521
 522 void
 523 PannerUI::pan_mute (uint32_t which)
 524 {
 525         StreamPanner& sp = _panner->streampanner(which);
 526         sp.set_muted (!sp.muted());
 527 }
 528
 529 void
 530 PannerUI::pan_bypass_toggle ()
 531 {
 532         if (bypass_menu_item && (_panner->bypassed() != bypass_menu_item->get_active())) {
 533                 _panner->set_bypassed (!_panner->bypassed());
 534         }
 535 }
 536
 537 void
 538 PannerUI::pan_reset (uint32_t which)
 539 {
 540         _panner->reset_streampanner (which);
 541 }
 542
 543 void
 544 PannerUI::pan_reset_all ()
 545 {
 546         _panner->reset_to_default ();
 547 }
 548
 549 void
 550 PannerUI::effective_pan_display ()
 551 {
 552         if (_panner->empty()) {
 553                 return;
 554         }
 555
 556         switch (_panner->nouts()) {
 557         case 0:
 558         case 1:
 559                 /* relax */
 560                 break;
 561
 562         case 2:
 563                 update_pan_bars (true);
 564                 break;
 565
 566         default:
 567                 //panner->move_puck (pan_value (v, right), 0.5);
 568                 break;
 569         }
 570 }
 571
 572 void
 573 PannerUI::pan_changed (void *src)
 574 {
 575         if (src == this) {
 576                 return;
 577         }
 578
 579         switch (_panner->npanners()) {
 580         case 0:
 581                 panning_link_direction_button.set_sensitive (false);
 582                 panning_link_button.set_sensitive (false);
 583                 return;
 584         case 1:
 585                 panning_link_direction_button.set_sensitive (false);
 586                 panning_link_button.set_sensitive (false);
 587                 break;
 588         default:
 589                 panning_link_direction_button.set_sensitive (_panner->linked ());
 590                 panning_link_button.set_sensitive (true);
 591         }
 592
 593         uint32_t const nouts = _panner->nouts();
 594
 595         switch (nouts) {
 596         case 0:
 597         case 1:
 598                 /* relax */
 599                 break;
 600
 601         case 2:
 602                 /* bring pan bar state up to date */
 603                 update_pan_bars (false);
 604                 break;
 605
 606         default:
 607                 // panner->move_puck (pan_value (pans[0], pans[1]), 0.5);
 608                 break;
 609         }
 610 }
 611
 612 void
 613 PannerUI::pan_adjustment_changed (uint32_t which)
 614 {
 615         if (!in_pan_update && which < _panner->npanners()) {
 616
 617                 float val = pan_adjustments[which]->get_value ();
 618                 float const xpos = _panner->pan_control(which)->get_value();
 619
 620                 /* add a kinda-sorta detent for the middle */
 621
 622                 if (val != 0.5 && Panner::equivalent (val, 0.5)) {
 623                         /* this is going to be reentrant, so just
 624                            return after it.
 625                         */
 626
 627                         in_pan_update = true;
 628                         pan_adjustments[which]->set_value (0.5);
 629                         in_pan_update = false;
 630                         return;
 631                 }
 632
 633                 if (!Panner::equivalent (val, xpos)) {
 634
 635                         _panner->pan_control(which)->set_value (val);
 636                         /* XXX
 637                            the panner objects have no access to the session,
 638                            so do this here. ick.
 639                         */
 640                         _session->set_dirty();
 641                 }
 642         }
 643 }
 644
 645 void
 646 PannerUI::pan_value_changed (uint32_t which)
 647 {
 648         ENSURE_GUI_THREAD (*this, &PannerUI::pan_value_changed, which)
 649
 650         if (twod_panner) {
 651
 652                 float x;
 653                 float y;
 654                 _panner->streampanner(which).get_position (x, y);
 655
 656                 in_pan_update = true;
 657                 twod_panner->move_puck (which, x, y);
 658                 in_pan_update = false;
 659
 660         } else if (_panner->npanners() > 0 && 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 const sensitive = !(_panner->mono()) && !(_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 (twod_panner) {
 724                         twod_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 (*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 (*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 (sigc::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 }
 893
 894 void
 895 PannerUI::set_mono (bool yn)
 896 {
 897         _panner->set_mono (yn);
 898         update_pan_sensitive ();
 899 }
 900
 901
 902 void
 903 PannerUI::connect_to_pan_control (uint32_t i)
 904 {
 905         _panner->pan_control(i)->Changed.connect (
 906                 _pan_control_connections, invalidator (*this), boost::bind (&PannerUI::pan_value_changed, this, i), gui_context ()
 907                 );
 908 }