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