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           _current_npans (-1),
  56           hAdjustment(0.0, 0.0, 0.0),
  57           vAdjustment(0.0, 0.0, 0.0),
  58           panning_viewport(hAdjustment, vAdjustment),
  59           panning_up_arrow (Gtk::ARROW_UP, Gtk::SHADOW_OUT),
  60           panning_down_arrow (Gtk::ARROW_DOWN, Gtk::SHADOW_OUT),
  61           panning_link_button (_("link")),
  62           pan_automation_style_button (""),
  63           pan_automation_state_button ("")
  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()->tooltips().set_tip (pan_automation_state_button, _("Pan automation mode"));
  75         ARDOUR_UI::instance()->tooltips().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         pan_bar_packer.set_size_request (-1, 61);
  81         panning_viewport.set_size_request (-1, 61);
  82         panning_viewport.set_name (X_("BaseFrame"));
  83
  84         ARDOUR_UI::instance()->tooltips().set_tip (panning_link_button,
  85                                                    _("panning link control"));
  86         ARDOUR_UI::instance()->tooltips().set_tip (panning_link_direction_button,
  87                                                    _("panning link direction"));
  88
  89         pan_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
  90         pan_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
  91
  92         pan_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &PannerUI::pan_automation_style_button_event), false);
  93         pan_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &PannerUI::pan_automation_state_button_event), false);
  94
  95         panning_link_button.set_name (X_("PanningLinkButton"));
  96         panning_link_direction_button.set_name (X_("PanningLinkDirectionButton"));
  97
  98         panning_link_box.pack_start (panning_link_button, true, true);
  99         panning_link_box.pack_start (panning_link_direction_button, true, true);
 100         panning_link_box.pack_start (pan_automation_state_button, true, true);
 101
 102         /* the pixmap will be reset at some point, but the key thing is that
 103            we need a pixmap in the button just to get started.
 104         */
 105         panning_link_direction_button.add (*(manage (new Image (get_xpm("forwardblarrow.xpm")))));
 106
 107         panning_link_direction_button.signal_clicked().connect
 108                 (mem_fun(*this, &PannerUI::panning_link_direction_clicked));
 109
 110         panning_link_button.signal_button_press_event().connect
 111                 (mem_fun(*this, &PannerUI::panning_link_button_press), false);
 112         panning_link_button.signal_button_release_event().connect
 113                 (mem_fun(*this, &PannerUI::panning_link_button_release), false);
 114
 115         panning_up.set_border_width (3);
 116         panning_down.set_border_width (3);
 117         panning_up.add (panning_up_arrow);
 118         panning_down.add (panning_down_arrow);
 119         panning_up.set_name (X_("PanScrollerBase"));
 120         panning_down.set_name (X_("PanScrollerBase"));
 121         panning_up_arrow.set_name (X_("PanScrollerArrow"));
 122         panning_down_arrow.set_name (X_("PanScrollerArrow"));
 123
 124         pan_vbox.set_spacing (2);
 125         pan_vbox.pack_start (panning_viewport, Gtk::PACK_SHRINK);
 126         pan_vbox.pack_start (panning_link_box, Gtk::PACK_SHRINK);
 127
 128         pack_start (pan_vbox, true, true);
 129
 130         panner = 0;
 131         big_window = 0;
 132
 133         set_width(Narrow);
 134 }
 135
 136 void
 137 PannerUI::set_panner (boost::shared_ptr<Panner> p)
 138 {
 139         connections.clear ();
 140
 141         delete pan_astyle_menu;
 142         pan_astyle_menu = 0;
 143
 144         delete pan_astate_menu;
 145         pan_astate_menu = 0;
 146
 147         _panner = p;
 148
 149         delete panner;
 150         panner = 0;
 151
 152         if (!_panner) {
 153                 return;
 154         }
 155
 156         connections.push_back (_panner->Changed.connect (mem_fun(*this, &PannerUI::panner_changed)));
 157         connections.push_back (_panner->LinkStateChanged.connect (mem_fun(*this, &PannerUI::update_pan_linkage)));
 158         connections.push_back (_panner->StateChanged.connect (mem_fun(*this, &PannerUI::update_pan_state)));
 159
 160         setup_pan ();
 161
 162         pan_changed (0);
 163         update_pan_sensitive ();
 164         update_pan_linkage ();
 165         pan_automation_state_changed ();
 166
 167 #if WHERE_DOES_THIS_LIVE
 168         pan_bar_packer.show();
 169         panning_viewport.show();
 170         panning_up.show();
 171         panning_up_arrow.show();
 172         panning_down.show();
 173         panning_down_arrow.show();
 174         pan_vbox.show();
 175         panning_link_button.show();
 176         panning_link_direction_button.show();
 177         panning_link_box.show();
 178         pan_automation_style_button.show();
 179         pan_automation_state_button.show();
 180         show();
 181 #endif
 182 }
 183
 184 void
 185 PannerUI::build_astate_menu ()
 186 {
 187         using namespace Menu_Helpers;
 188
 189         if (pan_astate_menu == 0) {
 190                 pan_astate_menu = new Menu;
 191                 pan_astate_menu->set_name ("ArdourContextMenu");
 192         } else {
 193                 pan_astate_menu->items().clear ();
 194         }
 195
 196         pan_astate_menu->items().push_back (MenuElem (_("Manual"), bind (
 197                         mem_fun (_panner.get(), &Panner::set_automation_state),
 198                         (AutoState) Off)));
 199         pan_astate_menu->items().push_back (MenuElem (_("Play"), bind (
 200                         mem_fun (_panner.get(), &Panner::set_automation_state),
 201                         (AutoState) Play)));
 202         pan_astate_menu->items().push_back (MenuElem (_("Write"), bind (
 203                         mem_fun (_panner.get(), &Panner::set_automation_state),
 204                         (AutoState) Write)));
 205         pan_astate_menu->items().push_back (MenuElem (_("Touch"), bind (
 206                         mem_fun (_panner.get(), &Panner::set_automation_state),
 207                         (AutoState) Touch)));
 208
 209 }
 210
 211 void
 212 PannerUI::build_astyle_menu ()
 213 {
 214         using namespace Menu_Helpers;
 215
 216         if (pan_astyle_menu == 0) {
 217                 pan_astyle_menu = new Menu;
 218                 pan_astyle_menu->set_name ("ArdourContextMenu");
 219         } else {
 220                 pan_astyle_menu->items().clear();
 221         }
 222
 223         pan_astyle_menu->items().push_back (MenuElem (_("Trim")));
 224         pan_astyle_menu->items().push_back (MenuElem (_("Abs")));
 225 }
 226
 227 boost::shared_ptr<PBD::Controllable>
 228 PannerUI::get_controllable()
 229 {
 230         return pan_bars[0]->get_controllable();
 231 }
 232
 233 bool
 234 PannerUI::panning_link_button_press (GdkEventButton*)
 235 {
 236         return true;
 237 }
 238
 239 bool
 240 PannerUI::panning_link_button_release (GdkEventButton*)
 241 {
 242         if (!ignore_toggle) {
 243                 _panner->set_linked (!_panner->linked());
 244         }
 245         return true;
 246 }
 247
 248 void
 249 PannerUI::panning_link_direction_clicked()
 250 {
 251         switch (_panner->link_direction()) {
 252         case Panner::SameDirection:
 253                 _panner->set_link_direction (Panner::OppositeDirection);
 254                 break;
 255         default:
 256                 _panner->set_link_direction (Panner::SameDirection);
 257                 break;
 258         }
 259 }
 260
 261 void
 262 PannerUI::update_pan_linkage ()
 263 {
 264         ENSURE_GUI_THREAD(mem_fun(*this, &PannerUI::update_pan_linkage));
 265
 266         bool x = _panner->linked();
 267         bool bx = panning_link_button.get_active();
 268
 269         if (x != bx) {
 270
 271                 ignore_toggle = true;
 272                 panning_link_button.set_active (x);
 273                 ignore_toggle = false;
 274         }
 275
 276         panning_link_direction_button.set_sensitive (x);
 277
 278         switch (_panner->link_direction()) {
 279         case Panner::SameDirection:
 280                 panning_link_direction_button.set_image (*(manage (new Image (get_xpm ("forwardblarrow.xpm")))));
 281                 break;
 282         default:
 283                 panning_link_direction_button.set_image (*(manage (new Image (get_xpm("revdblarrow.xpm")))));
 284                 break;
 285         }
 286 }
 287
 288 void
 289 PannerUI::set_width (Width w)
 290 {
 291         switch (w) {
 292         case Wide:
 293                 panning_link_button.set_label (_("link"));
 294                 break;
 295         case Narrow:
 296                 panning_link_button.set_label (_("L"));
 297                 break;
 298         }
 299
 300         _width = w;
 301 }
 302
 303
 304 PannerUI::~PannerUI ()
 305 {
 306         for (vector<Adjustment*>::iterator i = pan_adjustments.begin(); i != pan_adjustments.end(); ++i) {
 307                 delete (*i);
 308         }
 309
 310         for (vector<PannerBar*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
 311                 delete (*i);
 312         }
 313
 314         delete panner;
 315         delete big_window;
 316         delete pan_menu;
 317         delete pan_astyle_menu;
 318         delete pan_astate_menu;
 319 }
 320
 321
 322 void
 323 PannerUI::panner_changed ()
 324 {
 325         ENSURE_GUI_THREAD (mem_fun(*this, &PannerUI::panner_changed));
 326         setup_pan ();
 327         pan_changed (0);
 328 }
 329
 330 void
 331 PannerUI::update_pan_state ()
 332 {
 333         /* currently nothing to do */
 334         // ENSURE_GUI_THREAD (mem_fun(*this, &PannerUI::update_panner_state));
 335 }
 336
 337 void
 338 PannerUI::setup_pan ()
 339 {
 340         if (!_panner) {
 341                 return;
 342         }
 343
 344         uint32_t const nouts = _panner->nouts();
 345         uint32_t const npans = _panner->npanners();
 346
 347         if (int32_t (nouts) == _current_nouts && int32_t (npans) == _current_npans) {
 348                 return;
 349         }
 350
 351         _current_nouts = nouts;
 352         _current_npans = npans;
 353
 354         if (nouts == 0 || nouts == 1) {
 355
 356                 while (!pan_adjustments.empty()) {
 357                         delete pan_bars.back();
 358                         pan_bars.pop_back ();
 359                         delete pan_adjustments.back();
 360                         pan_adjustments.pop_back ();
 361                 }
 362
 363                 /* stick something into the panning viewport so that it redraws */
 364
 365                 EventBox* eb = manage (new EventBox());
 366                 panning_viewport.remove ();
 367                 panning_viewport.add (*eb);
 368                 panning_viewport.show_all ();
 369
 370         } else if (nouts == 2) {
 371
 372                 vector<Adjustment*>::size_type asz;
 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 (npans);
 459                 if (big_window) {
 460                         big_window->reset (npans);
 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 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 (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 }
 893
 894 void
 895 PannerUI::set_mono (bool yn)
 896 {
 897         _panner->set_mono (yn);
 898         update_pan_sensitive ();
 899 }
 900
 901