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