gtk2_ardour/panner_ui.cc

   1 /*
   2   Copyright (C) 2004 Paul Davis
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program; if not, write to the Free Software
  16   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17 */
  18
  19 #include <limits.h>
  20
  21 #include "ardour/io.h"
  22 #include "ardour/dB.h"
  23 #include <gtkmm2ext/utils.h>
  24 #include <gtkmm2ext/stop_signal.h>
  25 #include <gtkmm2ext/barcontroller.h>
  26 #include "midi++/manager.h"
  27 #include "pbd/fastlog.h"
  28
  29 #include "ardour_ui.h"
  30 #include "panner_ui.h"
  31 #include "panner2d.h"
  32 #include "utils.h"
  33 #include "panner.h"
  34 #include "gui_thread.h"
  35
  36 #include "ardour/delivery.h"
  37 #include "ardour/session.h"
  38 #include "ardour/panner.h"
  39 #include "ardour/route.h"
  40
  41 #include "i18n.h"
  42
  43 using namespace std;
  44 using namespace ARDOUR;
  45 using namespace PBD;
  46 using namespace Gtkmm2ext;
  47 using namespace Gtk;
  48
  49 const int PannerUI::pan_bar_height = 30;
  50
  51 PannerUI::PannerUI (Session* s)
  52         : _current_nouts (-1)
  53         , _current_npans (-1)
  54         , hAdjustment(0.0, 0.0, 0.0)
  55         , vAdjustment(0.0, 0.0, 0.0)
  56         , panning_viewport(hAdjustment, vAdjustment)
  57         , panning_up_arrow (Gtk::ARROW_UP, Gtk::SHADOW_OUT)
  58         , panning_down_arrow (Gtk::ARROW_DOWN, Gtk::SHADOW_OUT)
  59         , panning_link_button (_("link"))
  60         , pan_automation_style_button ("")
  61         , pan_automation_state_button ("")
  62 {
  63         set_session (s);
  64
  65         ignore_toggle = false;
  66         pan_menu = 0;
  67         pan_astate_menu = 0;
  68         pan_astyle_menu = 0;
  69         in_pan_update = false;
  70
  71         pan_automation_style_button.set_name ("MixerAutomationModeButton");
  72         pan_automation_state_button.set_name ("MixerAutomationPlaybackButton");
  73
  74         ARDOUR_UI::instance()->set_tip (pan_automation_state_button, _("Pan automation mode"));
  75         ARDOUR_UI::instance()->set_tip (pan_automation_style_button, _("Pan automation type"));
  76
  77         //set_size_request_to_display_given_text (pan_automation_state_button, X_("O"), 2, 2);
  78         //set_size_request_to_display_given_text (pan_automation_style_button, X_("0"), 2, 2);
  79
  80         panning_viewport.set_name (X_("BaseFrame"));
  81
  82         ARDOUR_UI::instance()->set_tip (panning_link_button,
  83                                                    _("panning link control"));
  84         ARDOUR_UI::instance()->set_tip (panning_link_direction_button,
  85                                                    _("panning link direction"));
  86
  87         pan_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
  88         pan_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
  89
  90         pan_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &PannerUI::pan_automation_style_button_event), false);
  91         pan_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &PannerUI::pan_automation_state_button_event), false);
  92
  93         panning_link_button.set_name (X_("PanningLinkButton"));
  94         panning_link_direction_button.set_name (X_("PanningLinkDirectionButton"));
  95
  96         panning_link_box.pack_start (panning_link_button, true, true);
  97         panning_link_box.pack_start (panning_link_direction_button, true, true);
  98         panning_link_box.pack_start (pan_automation_state_button, true, true);
  99
 100         /* the pixmap will be reset at some point, but the key thing is that
 101            we need a pixmap in the button just to get started.
 102         */
 103         panning_link_direction_button.add (*(manage (new Image (get_xpm("forwardblarrow.xpm")))));
 104
 105         panning_link_direction_button.signal_clicked().connect
 106                 (sigc::mem_fun(*this, &PannerUI::panning_link_direction_clicked));
 107
 108         panning_link_button.signal_button_press_event().connect
 109                 (sigc::mem_fun(*this, &PannerUI::panning_link_button_press), false);
 110         panning_link_button.signal_button_release_event().connect
 111                 (sigc::mem_fun(*this, &PannerUI::panning_link_button_release), false);
 112
 113         panning_up.set_border_width (3);
 114         panning_down.set_border_width (3);
 115         panning_up.add (panning_up_arrow);
 116         panning_down.add (panning_down_arrow);
 117         panning_up.set_name (X_("PanScrollerBase"));
 118         panning_down.set_name (X_("PanScrollerBase"));
 119         panning_up_arrow.set_name (X_("PanScrollerArrow"));
 120         panning_down_arrow.set_name (X_("PanScrollerArrow"));
 121
 122         pan_vbox.set_spacing (2);
 123         pan_vbox.pack_start (panning_viewport, Gtk::PACK_SHRINK);
 124         pan_vbox.pack_start (panning_link_box, Gtk::PACK_SHRINK);
 125
 126         pack_start (pan_vbox, true, true);
 127
 128         panner = 0;
 129         big_window = 0;
 130
 131         set_width(Narrow);
 132 }
 133
 134 void
 135 PannerUI::set_panner (boost::shared_ptr<Panner> p)
 136 {
 137         connections.drop_connections ();
 138
 139         delete pan_astyle_menu;
 140         pan_astyle_menu = 0;
 141
 142         delete pan_astate_menu;
 143         pan_astate_menu = 0;
 144
 145         _panner = p;
 146
 147         delete panner;
 148         panner = 0;
 149
 150         if (!_panner) {
 151                 return;
 152         }
 153
 154         _panner->Changed.connect (connections, boost::bind (&PannerUI::panner_changed, this), gui_context());
 155         _panner->LinkStateChanged.connect (connections, boost::bind (&PannerUI::update_pan_linkage, this), gui_context());
 156         _panner->StateChanged.connect (connections, boost::bind (&PannerUI::update_pan_state, this), gui_context());
 157
 158         setup_pan ();
 159
 160         pan_changed (0);
 161         update_pan_sensitive ();
 162         update_pan_linkage ();
 163         pan_automation_state_changed ();
 164
 165 #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"), sigc::bind (
 195                         sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
 196                         (AutoState) Off)));
 197         pan_astate_menu->items().push_back (MenuElem (_("Play"), sigc::bind (
 198                         sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
 199                         (AutoState) Play)));
 200         pan_astate_menu->items().push_back (MenuElem (_("Write"), sigc::bind (
 201                         sigc::mem_fun (_panner.get(), &Panner::set_automation_state),
 202                         (AutoState) Write)));
 203         pan_astate_menu->items().push_back (MenuElem (_("Touch"), sigc::bind (
 204                         sigc::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 (*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 (*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 (*this, &PannerUI::update_panner_state)
 333 }
 334
 335 void
 336 PannerUI::setup_pan ()
 337 {
 338         if (!_panner) {
 339                 return;
 340         }
 341
 342         uint32_t const nouts = _panner->nouts();
 343         uint32_t const npans = _panner->npanners();
 344
 345         if (int32_t (nouts) == _current_nouts && int32_t (npans) == _current_npans) {
 346                 return;
 347         }
 348
 349         _current_nouts = nouts;
 350         _current_npans = npans;
 351
 352         if (nouts == 0 || nouts == 1) {
 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                 delete panner;
 362                 panner = 0;
 363
 364                 /* stick something into the panning viewport so that it redraws */
 365
 366                 EventBox* eb = manage (new EventBox());
 367                 panning_viewport.remove ();
 368                 panning_viewport.add (*eb);
 369                 panning_viewport.show_all ();
 370
 371         } else if (nouts == 2) {
 372
 373                 vector<Adjustment*>::size_type asz;
 374
 375                 while (!pan_adjustments.empty()) {
 376                         delete pan_bars.back();
 377                         pan_bars.pop_back ();
 378                         delete pan_adjustments.back();
 379                         pan_adjustments.pop_back ();
 380                 }
 381
 382                 delete panner;
 383                 panner = 0;
 384
 385                 while ((asz = pan_adjustments.size()) < npans) {
 386
 387                         float x, rx;
 388                         PannerBar* bc;
 389
 390                         /* initialize adjustment with 0.0 (L) or 1.0 (R) for the first and second panners,
 391                            which serves as a default, otherwise use current value */
 392
 393                         rx = _panner->pan_control( asz)->get_value();
 394
 395                         if (npans == 1) {
 396                                 x = 0.5;
 397                         } else if (asz == 0) {
 398                                 x = 0.0;
 399                         } else if (asz == 1) {
 400                                 x = 1.0;
 401                         } else {
 402                                 x = rx;
 403                         }
 404
 405                         pan_adjustments.push_back (new Adjustment (x, 0, 1.0, 0.005, 0.05));
 406                         bc = new PannerBar (*pan_adjustments[asz],
 407                                 boost::static_pointer_cast<PBD::Controllable>( _panner->pan_control( asz )) );
 408
 409                         /* now set adjustment with current value of panner, then connect the signals */
 410                         pan_adjustments.back()->set_value(rx);
 411                         pan_adjustments.back()->signal_value_changed().connect (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_adjustment_changed), (uint32_t) asz));
 412
 413                         _panner->pan_control( asz )->Changed.connect (connections, boost::bind (&PannerUI::pan_value_changed, this, (uint32_t) asz), gui_context());
 414
 415                         bc->set_name ("PanSlider");
 416                         bc->set_shadow_type (Gtk::SHADOW_NONE);
 417
 418                         boost::shared_ptr<AutomationControl> ac = _panner->pan_control (asz);
 419
 420                         if (asz) {
 421                                 bc->StartGesture.connect (sigc::mem_fun (*ac, &AutomationControl::start_touch));
 422                                 bc->StopGesture.connect (sigc::mem_fun (*ac, &AutomationControl::stop_touch));
 423                         }
 424
 425                         char buf[64];
 426                         snprintf (buf, sizeof (buf), _("panner for channel %zu"), asz + 1);
 427                         ARDOUR_UI::instance()->set_tip (bc->event_widget(), buf);
 428
 429                         bc->event_widget().signal_button_release_event().connect
 430                                 (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_button_event), (uint32_t) asz));
 431
 432                         bc->set_size_request (-1, pan_bar_height);
 433
 434                         pan_bars.push_back (bc);
 435                         pan_bar_packer.pack_start (*bc, false, false);
 436                 }
 437
 438                 /* now that we actually have the pan bars,
 439                    set their sensitivity based on current
 440                    automation state.
 441                 */
 442
 443                 update_pan_sensitive ();
 444
 445                 panning_viewport.remove ();
 446                 panning_viewport.add (pan_bar_packer);
 447                 panning_viewport.show_all ();
 448
 449         } else {
 450
 451                 if (!panner) {
 452                         panner = new Panner2d (_panner, 61);
 453                         panner->set_name ("MixerPanZone");
 454                         panner->show ();
 455
 456                         panner->signal_button_press_event().connect
 457                                 (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_button_event), (uint32_t) 0), false);
 458                 }
 459
 460                 update_pan_sensitive ();
 461                 panner->reset (npans);
 462                 if (big_window) {
 463                         big_window->reset (npans);
 464                 }
 465                 panner->set_size_request (-1, 61);
 466
 467                 /* and finally, add it to the panner frame */
 468
 469                 panning_viewport.remove ();
 470                 panning_viewport.add (*panner);
 471                 panning_viewport.show_all ();
 472         }
 473 }
 474
 475 bool
 476 PannerUI::pan_button_event (GdkEventButton* ev, uint32_t which)
 477 {
 478         switch (ev->button) {
 479         case 1:
 480                 if (panner && ev->type == GDK_2BUTTON_PRESS) {
 481                         if (!big_window) {
 482                                 big_window = new Panner2dWindow (_panner, 400, _panner->npanners());
 483                         }
 484                         big_window->show ();
 485                         return true;
 486                 }
 487                 break;
 488
 489         case 3:
 490                 if (pan_menu == 0) {
 491                         pan_menu = manage (new Menu);
 492                         pan_menu->set_name ("ArdourContextMenu");
 493                 }
 494                 build_pan_menu (which);
 495                 pan_menu->popup (1, ev->time);
 496                 return true;
 497                 break;
 498         default:
 499                 return false;
 500         }
 501
 502         return false; // what's wrong with gcc?
 503 }
 504
 505 void
 506 PannerUI::build_pan_menu (uint32_t which)
 507 {
 508         using namespace Menu_Helpers;
 509         MenuList& items (pan_menu->items());
 510
 511         items.clear ();
 512
 513         items.push_back (CheckMenuElem (_("Mute")));
 514
 515         /* set state first, connect second */
 516
 517         (dynamic_cast<CheckMenuItem*> (&items.back()))->set_active (_panner->streampanner(which).muted());
 518         (dynamic_cast<CheckMenuItem*> (&items.back()))->signal_toggled().connect
 519                 (sigc::bind (sigc::mem_fun(*this, &PannerUI::pan_mute), which));
 520
 521         items.push_back (CheckMenuElem (_("Bypass"), sigc::mem_fun(*this, &PannerUI::pan_bypass_toggle)));
 522         bypass_menu_item = static_cast<CheckMenuItem*> (&items.back());
 523
 524         /* set state first, connect second */
 525
 526         bypass_menu_item->set_active (_panner->bypassed());
 527         bypass_menu_item->signal_toggled().connect (sigc::mem_fun(*this, &PannerUI::pan_bypass_toggle));
 528
 529         items.push_back (MenuElem (_("Reset"), sigc::bind (sigc::mem_fun (*this, &PannerUI::pan_reset), which)));
 530         items.push_back (SeparatorElem());
 531         items.push_back (MenuElem (_("Reset all"), sigc::mem_fun (*this, &PannerUI::pan_reset_all)));
 532 }
 533
 534 void
 535 PannerUI::pan_mute (uint32_t which)
 536 {
 537         StreamPanner& sp = _panner->streampanner(which);
 538         sp.set_muted (!sp.muted());
 539 }
 540
 541 void
 542 PannerUI::pan_bypass_toggle ()
 543 {
 544         if (bypass_menu_item && (_panner->bypassed() != bypass_menu_item->get_active())) {
 545                 _panner->set_bypassed (!_panner->bypassed());
 546         }
 547 }
 548
 549 void
 550 PannerUI::pan_reset (uint32_t which)
 551 {
 552         _panner->reset_streampanner (which);
 553 }
 554
 555 void
 556 PannerUI::pan_reset_all ()
 557 {
 558         _panner->reset_to_default ();
 559 }
 560
 561 void
 562 PannerUI::effective_pan_display ()
 563 {
 564         if (_panner->empty()) {
 565                 return;
 566         }
 567
 568         switch (_panner->nouts()) {
 569         case 0:
 570         case 1:
 571                 /* relax */
 572                 break;
 573
 574         case 2:
 575                 update_pan_bars (true);
 576                 break;
 577
 578         default:
 579                 //panner->move_puck (pan_value (v, right), 0.5);
 580                 break;
 581         }
 582 }
 583
 584 void
 585 PannerUI::pan_changed (void *src)
 586 {
 587         if (src == this) {
 588                 return;
 589         }
 590
 591         switch (_panner->npanners()) {
 592         case 0:
 593                 panning_link_direction_button.set_sensitive (false);
 594                 panning_link_button.set_sensitive (false);
 595                 return;
 596         case 1:
 597                 panning_link_direction_button.set_sensitive (false);
 598                 panning_link_button.set_sensitive (false);
 599                 break;
 600         default:
 601                 panning_link_direction_button.set_sensitive (true);
 602                 panning_link_button.set_sensitive (true);
 603         }
 604
 605         uint32_t nouts = _panner->nouts();
 606
 607         switch (nouts) {
 608         case 0:
 609         case 1:
 610                 /* relax */
 611                 break;
 612
 613         case 2:
 614                 /* bring pan bar state up to date */
 615                 update_pan_bars (false);
 616                 break;
 617
 618         default:
 619                 // panner->move_puck (pan_value (pans[0], pans[1]), 0.5);
 620                 break;
 621         }
 622 }
 623
 624 void
 625 PannerUI::pan_adjustment_changed (uint32_t which)
 626 {
 627         if (!in_pan_update && which < _panner->npanners()) {
 628
 629                 float val = pan_adjustments[which]->get_value ();
 630                 float const xpos = _panner->pan_control(which)->get_value();
 631
 632                 /* add a kinda-sorta detent for the middle */
 633
 634                 if (val != 0.5 && Panner::equivalent (val, 0.5)) {
 635                         /* this is going to be reentrant, so just
 636                            return after it.
 637                         */
 638
 639                         in_pan_update = true;
 640                         pan_adjustments[which]->set_value (0.5);
 641                         in_pan_update = false;
 642                         return;
 643                 }
 644
 645                 if (!Panner::equivalent (val, xpos)) {
 646
 647                         _panner->pan_control(which)->set_value (val);
 648                         /* XXX
 649                            the panner objects have no access to the session,
 650                            so do this here. ick.
 651                         */
 652                         _session->set_dirty();
 653                 }
 654         }
 655 }
 656
 657 void
 658 PannerUI::pan_value_changed (uint32_t which)
 659 {
 660         ENSURE_GUI_THREAD (*this, &PannerUI::pan_value_changed, which)
 661
 662         if (_panner->npanners() > 1 && which < _panner->npanners()) {
 663                 float xpos;
 664                 float val = pan_adjustments[which]->get_value ();
 665
 666                 _panner->streampanner(which).get_position (xpos);
 667
 668                 if (!Panner::equivalent (val, xpos)) {
 669                         in_pan_update = true;
 670                         pan_adjustments[which]->set_value (xpos);
 671                         in_pan_update = false;
 672                 }
 673         }
 674 }
 675
 676 void
 677 PannerUI::update_pan_bars (bool only_if_aplay)
 678 {
 679         uint32_t n;
 680         vector<Adjustment*>::iterator i;
 681
 682         in_pan_update = true;
 683
 684         /* this runs during automation playback, and moves the bar controllers
 685            and/or pucks around.
 686         */
 687
 688         for (i = pan_adjustments.begin(), n = 0; i != pan_adjustments.end(); ++i, ++n) {
 689                 float xpos, val;
 690
 691                 if (only_if_aplay) {
 692                         boost::shared_ptr<AutomationList> alist (_panner->streampanner(n).pan_control()->alist());
 693
 694                         if (!alist->automation_playback()) {
 695                                 continue;
 696                         }
 697                 }
 698
 699                 _panner->streampanner(n).get_effective_position (xpos);
 700                 val = (*i)->get_value ();
 701
 702                 if (!Panner::equivalent (val, xpos)) {
 703                         (*i)->set_value (xpos);
 704                 }
 705         }
 706
 707         in_pan_update = false;
 708 }
 709
 710 void
 711 PannerUI::update_pan_sensitive ()
 712 {
 713         bool const sensitive = !(_panner->mono()) && !(_panner->automation_state() & Play);
 714
 715         switch (_panner->nouts()) {
 716         case 0:
 717         case 1:
 718                 break;
 719         case 2:
 720                 for (vector<PannerBar*>::iterator i = pan_bars.begin(); i != pan_bars.end(); ++i) {
 721                         (*i)->set_sensitive (sensitive);
 722                 }
 723                 break;
 724         default:
 725                 if (panner) {
 726                         panner->set_sensitive (sensitive);
 727                 }
 728                 if (big_window) {
 729                         big_window->set_sensitive (sensitive);
 730                 }
 731                 break;
 732         }
 733 }
 734
 735 gint
 736 PannerUI::pan_automation_state_button_event (GdkEventButton *ev)
 737 {
 738         using namespace Menu_Helpers;
 739
 740         if (ev->type == GDK_BUTTON_RELEASE) {
 741                 return TRUE;
 742         }
 743
 744         switch (ev->button) {
 745         case 1:
 746                 if (pan_astate_menu == 0) {
 747                         build_astate_menu ();
 748                 }
 749                 pan_astate_menu->popup (1, ev->time);
 750                 break;
 751         default:
 752                 break;
 753         }
 754
 755         return TRUE;
 756 }
 757
 758 gint
 759 PannerUI::pan_automation_style_button_event (GdkEventButton *ev)
 760 {
 761         if (ev->type == GDK_BUTTON_RELEASE) {
 762                 return TRUE;
 763         }
 764
 765         switch (ev->button) {
 766         case 1:
 767                 if (pan_astyle_menu == 0) {
 768                         build_astyle_menu ();
 769                 }
 770                 pan_astyle_menu->popup (1, ev->time);
 771                 break;
 772         default:
 773                 break;
 774         }
 775         return TRUE;
 776 }
 777
 778 void
 779 PannerUI::pan_automation_style_changed ()
 780 {
 781         ENSURE_GUI_THREAD (*this, &PannerUI::pan_automation_style_changed)
 782
 783         switch (_width) {
 784         case Wide:
 785                 pan_automation_style_button.set_label (astyle_string(_panner->automation_style()));
 786                 break;
 787         case Narrow:
 788                 pan_automation_style_button.set_label (short_astyle_string(_panner->automation_style()));
 789                 break;
 790         }
 791 }
 792
 793 void
 794 PannerUI::pan_automation_state_changed ()
 795 {
 796         ENSURE_GUI_THREAD (*this, &PannerUI::pan_automation_state_changed)
 797
 798         bool x;
 799
 800         switch (_width) {
 801         case Wide:
 802           pan_automation_state_button.set_label (astate_string(_panner->automation_state()));
 803                 break;
 804         case Narrow:
 805           pan_automation_state_button.set_label (short_astate_string(_panner->automation_state()));
 806                 break;
 807         }
 808
 809         /* when creating a new session, we get to create busses (and
 810            sometimes tracks) with no outputs by the time they get
 811            here.
 812         */
 813
 814         if (_panner->empty()) {
 815                 return;
 816         }
 817
 818         x = (_panner->streampanner(0).pan_control()->alist()->automation_state() != Off);
 819
 820         if (pan_automation_state_button.get_active() != x) {
 821         ignore_toggle = true;
 822                 pan_automation_state_button.set_active (x);
 823                 ignore_toggle = false;
 824         }
 825
 826         update_pan_sensitive ();
 827
 828         /* start watching automation so that things move */
 829
 830         pan_watching.disconnect();
 831
 832         if (x) {
 833                 pan_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &PannerUI::effective_pan_display));
 834         }
 835 }
 836
 837 string
 838 PannerUI::astate_string (AutoState state)
 839 {
 840         return _astate_string (state, false);
 841 }
 842
 843 string
 844 PannerUI::short_astate_string (AutoState state)
 845 {
 846         return _astate_string (state, true);
 847 }
 848
 849 string
 850 PannerUI::_astate_string (AutoState state, bool shrt)
 851 {
 852         string sstr;
 853
 854         switch (state) {
 855         case Off:
 856                 sstr = (shrt ? "M" : _("M"));
 857                 break;
 858         case Play:
 859                 sstr = (shrt ? "P" : _("P"));
 860                 break;
 861         case Touch:
 862                 sstr = (shrt ? "T" : _("T"));
 863                 break;
 864         case Write:
 865                 sstr = (shrt ? "W" : _("W"));
 866                 break;
 867         }
 868
 869         return sstr;
 870 }
 871
 872 string
 873 PannerUI::astyle_string (AutoStyle style)
 874 {
 875         return _astyle_string (style, false);
 876 }
 877
 878 string
 879 PannerUI::short_astyle_string (AutoStyle style)
 880 {
 881         return _astyle_string (style, true);
 882 }
 883
 884 string
 885 PannerUI::_astyle_string (AutoStyle style, bool shrt)
 886 {
 887         if (style & Trim) {
 888                 return _("Trim");
 889         } else {
 890                 /* XXX it might different in different languages */
 891
 892                 return (shrt ? _("Abs") : _("Abs"));
 893         }
 894 }
 895
 896 void
 897 PannerUI::set_mono (bool yn)
 898 {
 899         _panner->set_mono (yn);
 900         update_pan_sensitive ();
 901 }
 902
 903