gtk2_ardour/gain_meter.cc

   1 /*
   2   Copyright (C) 2002 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
  20 #include <limits.h>
  21
  22 #include "ardour/amp.h"
  23 #include "ardour/logmeter.h"
  24 #include "ardour/route_group.h"
  25 #include "ardour/session_route.h"
  26 #include "ardour/dB.h"
  27 #include "ardour/utils.h"
  28
  29 #include <pangomm.h>
  30
  31 #include "gtkmm/style.h"
  32 #include "gdkmm/color.h"
  33 #include "gtkmm2ext/utils.h"
  34 #include "gtkmm2ext/gtk_ui.h"
  35
  36 #include "widgets/tooltips.h"
  37
  38 #include "pbd/fastlog.h"
  39 #include "pbd/stacktrace.h"
  40
  41 #include "gain_meter.h"
  42 #include "gui_thread.h"
  43 #include "keyboard.h"
  44 #include "public_editor.h"
  45 #include "utils.h"
  46 #include "meter_patterns.h"
  47 #include "timers.h"
  48 #include "ui_config.h"
  49
  50 #include "ardour/session.h"
  51 #include "ardour/route.h"
  52 #include "ardour/meter.h"
  53 #include "ardour/audio_track.h"
  54 #include "ardour/midi_track.h"
  55 #include "ardour/dB.h"
  56
  57 #include "pbd/i18n.h"
  58
  59 using namespace ARDOUR;
  60 using namespace ArdourWidgets;
  61 using namespace PBD;
  62 using namespace Gtkmm2ext;
  63 using namespace Gtk;
  64 using namespace std;
  65 using Gtkmm2ext::Keyboard;
  66 using namespace ArdourMeter;
  67
  68 static void
  69 reset_cursor_to_default (Gtk::Entry* widget)
  70 {
  71         Glib::RefPtr<Gdk::Window> win = widget->get_text_window ();
  72         if (win) {
  73                 /* C++ doesn't provide a pointer argument version of this
  74                    (i.e. you cannot set to NULL to get the default/parent
  75                    cursor)
  76                 */
  77                 gdk_window_set_cursor (win->gobj(), 0);
  78         }
  79 }
  80
  81 static void
  82 reset_cursor_to_default_state (Gtk::StateType, Gtk::Entry* widget)
  83 {
  84         reset_cursor_to_default (widget);
  85 }
  86
  87 sigc::signal<void, ARDOUR::AutoState> GainMeterBase::ChangeGainAutomationState;
  88
  89 GainMeterBase::GainMeterBase (Session* s, bool horizontal, int fader_length, int fader_girth)
  90         : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()),  // value
  91                            0.0,  // lower
  92                            1.0,  // upper
  93                            dB_coeff_step(Config->get_max_gain()) / 10.0,  // step increment
  94                            dB_coeff_step(Config->get_max_gain()))  // page increment
  95         , gain_automation_state_button ("")
  96         , meter_point_button (_("pre"))
  97         , gain_astate_propagate (false)
  98         , _data_type (DataType::AUDIO)
  99 {
 100         using namespace Menu_Helpers;
 101
 102         set_session (s);
 103
 104         ignore_toggle = false;
 105         meter_menu = 0;
 106         next_release_selects = false;
 107         _width = Wide;
 108
 109         fader_length = rint (fader_length * UIConfiguration::instance().get_ui_scale());
 110         fader_girth = rint (fader_girth * UIConfiguration::instance().get_ui_scale());
 111
 112         if (horizontal) {
 113                 gain_slider = manage (new HSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 114         } else {
 115                 gain_slider = manage (new VSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 116         }
 117
 118         level_meter = new LevelMeterHBox(_session);
 119
 120         level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
 121         meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
 122         meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
 123
 124         gain_slider->set_tweaks (ArdourFader::Tweaks(ArdourFader::NoButtonForward | ArdourFader::NoVerticalScroll));
 125         gain_slider->StartGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_start_touch));
 126         gain_slider->StopGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_stop_touch));
 127         gain_slider->set_name ("GainFader");
 128
 129         gain_display.set_name ("MixerStripGainDisplay");
 130         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 131         gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
 132         gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 133         gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 134         gain_display.set_alignment (0.5);
 135
 136         peak_display.set_name ("MixerStripPeakDisplay");
 137         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 138         max_peak = minus_infinity();
 139         peak_display.set_text (_("-inf"));
 140         peak_display.set_alignment (0.5);
 141
 142         /* stuff related to the fact that the peak display is not, in
 143            fact, supposed to be a text entry.
 144         */
 145         peak_display.set_events (peak_display.get_events() & ~(Gdk::EventMask (Gdk::LEAVE_NOTIFY_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::POINTER_MOTION_MASK)));
 146         peak_display.signal_map().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default), &peak_display));
 147         peak_display.signal_state_changed().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default_state), &peak_display));
 148         peak_display.unset_flags (Gtk::CAN_FOCUS);
 149         peak_display.set_editable (false);
 150
 151         gain_automation_state_button.set_name ("mixer strip button");
 152
 153         set_tooltip (gain_automation_state_button, _("Fader automation mode"));
 154
 155         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 156
 157         gain_automation_state_button.set_size_request(15, 15);
 158
 159         gain_astate_menu.set_name ("ArdourContextMenu");
 160         gain_astate_menu.set_reserve_toggle_size(false);
 161
 162         meter_point_button.set_name ("mixer strip button");
 163
 164         set_tooltip (&meter_point_button, _("Metering point"));
 165
 166         meter_point_button.unset_flags (Gtk::CAN_FOCUS);
 167
 168         meter_point_button.set_size_request(15, 15);
 169
 170         meter_point_menu.set_name ("ArdourContextMenu");
 171         meter_point_menu.set_reserve_toggle_size(false);
 172
 173         meter_point_menu.items().clear ();
 174         meter_point_menu.items().push_back (MenuElem(_("Input"),
 175          sigc::bind (sigc::mem_fun (*this,
 176          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterInput)));
 177         meter_point_menu.items().push_back (MenuElem(_("Pre Fader"),
 178          sigc::bind (sigc::mem_fun (*this,
 179          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterPreFader)));
 180         meter_point_menu.items().push_back (MenuElem(_("Post Fader"),
 181          sigc::bind (sigc::mem_fun (*this,
 182          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterPostFader)));
 183         meter_point_menu.items().push_back (MenuElem(_("Output"),
 184          sigc::bind (sigc::mem_fun (*this,
 185          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterOutput)));
 186         meter_point_menu.items().push_back (MenuElem(_("Custom"),
 187          sigc::bind (sigc::mem_fun (*this,
 188          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterCustom)));
 189         meter_point_button.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeter::meter_press), false);
 190
 191         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::fader_moved));
 192         peak_display.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_press), false);
 193         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 194         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 195
 196         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 197         ResetRoutePeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_route_peak_display));
 198         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 199         RedrawMetrics.connect (sigc::mem_fun(*this, &GainMeterBase::redraw_metrics));
 200
 201         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 202         UIConfiguration::instance().ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 203         UIConfiguration::instance().DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 204 }
 205
 206 GainMeterBase::~GainMeterBase ()
 207 {
 208         delete meter_menu;
 209         delete level_meter;
 210 }
 211
 212 void
 213 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 214                              boost::shared_ptr<PeakMeter> pm,
 215                              boost::shared_ptr<Amp> amp,
 216                              boost::shared_ptr<GainControl> control)
 217 {
 218         connections.clear ();
 219         model_connections.drop_connections ();
 220
 221         /* no meter and no control? nothing to do ... */
 222
 223         if (!pm && !control) {
 224                 level_meter->set_meter (0);
 225                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 226                 _meter.reset ();
 227                 _amp.reset ();
 228                 _route.reset ();
 229                 _control.reset ();
 230                 return;
 231         }
 232
 233         _meter = pm;
 234         _amp = amp;
 235         _route = r;
 236         _control = control;
 237
 238         level_meter->set_meter (pm.get());
 239         gain_slider->set_controllable (_control);
 240
 241         if (amp) {
 242                 amp->ConfigurationChanged.connect (
 243                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 244                         );
 245         }
 246
 247         setup_gain_adjustment ();
 248
 249         if (!_route || !_route->is_auditioner()) {
 250
 251                 using namespace Menu_Helpers;
 252
 253                 gain_astate_menu.items().clear ();
 254
 255                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 256                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Off)));
 257                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 258                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Play)));
 259                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 260                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Write)));
 261                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 262                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Touch)));
 263
 264                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 265                 connections.push_back (ChangeGainAutomationState.connect (sigc::mem_fun(*this, &GainMeterBase::set_gain_astate)));
 266
 267                 _control->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 268
 269                 gain_automation_state_changed ();
 270         }
 271
 272         _control->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 273
 274         gain_changed ();
 275         show_gain ();
 276         update_gain_sensitive ();
 277
 278         if (!_meter) {
 279                 peak_display.hide ();
 280         } else {
 281                 peak_display.show ();
 282         }
 283 }
 284
 285 void
 286 GainMeterBase::set_gain_astate (AutoState as)
 287 {
 288         if (gain_astate_propagate) {
 289                 gain_astate_propagate = false;
 290                 ChangeGainAutomationState (as);
 291                 return;
 292         }
 293         _amp->set_parameter_automation_state (Evoral::Parameter (GainAutomation), as);
 294 }
 295
 296 void
 297 GainMeterBase::setup_gain_adjustment ()
 298 {
 299         if (!_amp) {
 300                 return;
 301         }
 302
 303         if (_previous_amp_output_streams == _amp->output_streams ()) {
 304                 return;
 305         }
 306
 307         ignore_toggle = true;
 308
 309         if (_amp->output_streams().n_midi() <=  _amp->output_streams().n_audio()) {
 310                 _data_type = DataType::AUDIO;
 311                 gain_adjustment.set_lower (GAIN_COEFF_ZERO);
 312                 gain_adjustment.set_upper (GAIN_COEFF_UNITY);
 313                 gain_adjustment.set_step_increment (dB_coeff_step(Config->get_max_gain()) / 10.0);
 314                 gain_adjustment.set_page_increment (dB_coeff_step(Config->get_max_gain()));
 315                 gain_slider->set_default_value (gain_to_slider_position_with_max (GAIN_COEFF_UNITY, Config->get_max_gain()));
 316         } else {
 317                 _data_type = DataType::MIDI;
 318                 gain_adjustment.set_lower (0.0);
 319                 gain_adjustment.set_upper (2.0);
 320                 gain_adjustment.set_step_increment (1.0/128.0);
 321                 gain_adjustment.set_page_increment (10.0/128.0);
 322                 gain_slider->set_default_value (1.0);
 323         }
 324
 325         ignore_toggle = false;
 326
 327         effective_gain_display ();
 328
 329         _previous_amp_output_streams = _amp->output_streams ();
 330 }
 331
 332 void
 333 GainMeterBase::hide_all_meters ()
 334 {
 335         level_meter->hide_meters();
 336 }
 337
 338 void
 339 GainMeter::hide_all_meters ()
 340 {
 341         GainMeterBase::hide_all_meters ();
 342 }
 343
 344 void
 345 GainMeterBase::setup_meters (int len)
 346 {
 347         int meter_width = 5;
 348         uint32_t meter_channels = 0;
 349         if (_meter) {
 350                 meter_channels = _meter->input_streams().n_total();
 351         } else if (_route) {
 352                 meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 353         }
 354
 355         switch (_width) {
 356                 case Wide:
 357                         //meter_ticks1_area.show();
 358                         //meter_ticks2_area.show();
 359                         meter_metric_area.show();
 360                         if (meter_channels == 1) {
 361                                 meter_width = 10;
 362                         }
 363                         break;
 364                 case Narrow:
 365                         if (meter_channels > 1) {
 366                                 meter_width = 4;
 367                         }
 368                         //meter_ticks1_area.hide();
 369                         //meter_ticks2_area.hide();
 370                         meter_metric_area.hide();
 371                         break;
 372         }
 373         level_meter->setup_meters(len, meter_width);
 374 }
 375
 376 void
 377 GainMeterBase::set_type (MeterType t)
 378 {
 379         level_meter->set_meter_type(t);
 380 }
 381
 382 void
 383 GainMeter::setup_meters (int len)
 384 {
 385         switch (_width) {
 386                 case Wide:
 387                         {
 388                                 uint32_t meter_channels = 0;
 389                                 if (_meter) {
 390                                         meter_channels = _meter->input_streams().n_total();
 391                                 } else if (_route) {
 392                                         meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 393                                 }
 394                                 hbox.set_homogeneous(meter_channels < 7 ? true : false);
 395                         }
 396                         break;
 397                 case Narrow:
 398                         hbox.set_homogeneous(false);
 399                         break;
 400         }
 401         GainMeterBase::setup_meters (len);
 402 }
 403
 404 void
 405 GainMeter::set_type (MeterType t)
 406 {
 407         GainMeterBase::set_type (t);
 408 }
 409
 410 bool
 411 GainMeterBase::gain_key_press (GdkEventKey* ev)
 412 {
 413         if (ARDOUR_UI_UTILS::key_is_legal_for_numeric_entry (ev->keyval)) {
 414                 /* drop through to normal handling */
 415                 return false;
 416         }
 417         /* illegal key for gain entry */
 418         return true;
 419 }
 420
 421 bool
 422 GainMeterBase::peak_button_press (GdkEventButton* ev)
 423 {
 424         return true;
 425 }
 426
 427 bool
 428 GainMeterBase::peak_button_release (GdkEventButton* ev)
 429 {
 430         /* reset peak label */
 431
 432         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 433                 ResetAllPeakDisplays ();
 434         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 435                 if (_route) {
 436                         ResetGroupPeakDisplays (_route->route_group());
 437                 }
 438         } else {
 439                 ResetRoutePeakDisplays (_route.get());
 440         }
 441
 442         return true;
 443 }
 444
 445 void
 446 GainMeterBase::reset_peak_display ()
 447 {
 448         if (!_route) {
 449                 // catch "reset all" for VCAs
 450                 return;
 451         }
 452         _meter->reset_max();
 453         level_meter->clear_meters();
 454         max_peak = minus_infinity ();
 455         peak_display.set_text (_("-inf"));
 456         peak_display.set_name ("MixerStripPeakDisplay");
 457 }
 458
 459 void
 460 GainMeterBase::reset_route_peak_display (Route* route)
 461 {
 462         if (_route && _route.get() == route) {
 463                 reset_peak_display ();
 464         }
 465 }
 466
 467 void
 468 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 469 {
 470         if (_route && group == _route->route_group()) {
 471                 reset_peak_display ();
 472         }
 473 }
 474
 475 void
 476 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 477 {
 478         using namespace Menu_Helpers;
 479
 480         if (meter_menu == 0) {
 481                 meter_menu = new Gtk::Menu;
 482                 MenuList& items = meter_menu->items();
 483
 484                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 485                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 486                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 487                 items.push_back (SeparatorElem());
 488                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 489                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 490                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 491         }
 492
 493         meter_menu->popup (1, ev->time);
 494 }
 495
 496 bool
 497 GainMeterBase::gain_focused (GdkEventFocus* ev)
 498 {
 499         if (ev->in) {
 500                 gain_display.select_region (0, -1);
 501         } else {
 502                 gain_display.select_region (0, 0);
 503         }
 504         return false;
 505 }
 506
 507 void
 508 GainMeterBase::gain_activated ()
 509 {
 510         float f;
 511
 512         // Use the user's preferred locale/LC_NUMERIC setting
 513         if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 514                 return;
 515         }
 516
 517         /* clamp to displayable values */
 518         if (_data_type == DataType::AUDIO) {
 519                 f = min (f, 6.0f);
 520                 _control->set_value (dB_to_coefficient(f), Controllable::UseGroup);
 521         } else {
 522                 f = min (fabs (f), 2.0f);
 523                 _control->set_value (f, Controllable::UseGroup);
 524         }
 525
 526         if (gain_display.has_focus()) {
 527                 Gtk::Widget* w = gain_display.get_toplevel();
 528                 if (w) {
 529                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 530
 531                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 532
 533                         if (win) {
 534                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 535                                 if (f) {
 536                                         gtk_widget_grab_focus (f);
 537                                         return;
 538                                 }
 539                         }
 540                 }
 541         }
 542 }
 543
 544 void
 545 GainMeterBase::show_gain ()
 546 {
 547         char buf[32];
 548
 549         float v = gain_adjustment.get_value();
 550
 551         switch (_data_type) {
 552         case DataType::AUDIO:
 553                 if (v == 0.0) {
 554                         strcpy (buf, _("-inf"));
 555                 } else {
 556                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 557                 }
 558                 break;
 559         case DataType::MIDI:
 560                 snprintf (buf, sizeof (buf), "%.1f", v);
 561                 break;
 562         }
 563
 564         gain_display.set_text (buf);
 565 }
 566
 567 void
 568 GainMeterBase::fader_moved ()
 569 {
 570         if (!ignore_toggle) {
 571
 572                 gain_t value;
 573
 574                 /* convert from adjustment range (0..1) to gain coefficient */
 575
 576                 if (_data_type == DataType::AUDIO) {
 577                         value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 578                 } else {
 579                         value = gain_adjustment.get_value();
 580                 }
 581
 582                 // XXX hack allow to override group
 583                 // (this breaks group'ed  shift+click reset)
 584                 if (Keyboard::the_keyboard().key_is_down (GDK_Shift_R)
 585                                 || Keyboard::the_keyboard().key_is_down (GDK_Shift_L)) {
 586                         _control->set_value (value, Controllable::InverseGroup);
 587                 } else {
 588                         _control->set_value (value, Controllable::UseGroup);
 589                 }
 590         }
 591
 592         show_gain ();
 593 }
 594
 595 void
 596 GainMeterBase::effective_gain_display ()
 597 {
 598         gain_t fader_position = 0;
 599
 600         switch (_data_type) {
 601         case DataType::AUDIO:
 602                 /* the position of the fader should reflect any master gain,
 603                  * not just the control's own inherent value
 604                  */
 605                 fader_position = gain_to_slider_position_with_max (_control->get_value(), Config->get_max_gain());
 606                 break;
 607         case DataType::MIDI:
 608                 fader_position = _control->get_value ();
 609                 break;
 610         }
 611
 612         if (gain_adjustment.get_value() != fader_position) {
 613                 ignore_toggle = true;
 614                 gain_adjustment.set_value (fader_position);
 615                 ignore_toggle = false;
 616         }
 617 }
 618
 619 void
 620 GainMeterBase::gain_changed ()
 621 {
 622         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed);
 623         effective_gain_display ();
 624 }
 625
 626 void
 627 GainMeterBase::set_meter_strip_name (const char * name)
 628 {
 629         char tmp[256];
 630         meter_metric_area.set_name (name);
 631         sprintf(tmp, "Mark%sLeft", name);
 632         meter_ticks1_area.set_name (tmp);
 633         sprintf(tmp, "Mark%sRight", name);
 634         meter_ticks2_area.set_name (tmp);
 635 }
 636
 637 void
 638 GainMeterBase::set_fader_name (const char * name)
 639 {
 640         gain_slider->set_name (name);
 641 }
 642
 643 void
 644 GainMeterBase::update_gain_sensitive ()
 645 {
 646         bool x = !(_control->alist()->automation_state() & Play);
 647         static_cast<ArdourWidgets::SliderController*>(gain_slider)->set_sensitive (x);
 648 }
 649
 650 gint
 651 GainMeterBase::meter_press(GdkEventButton* ev)
 652 {
 653         if (!_route) {
 654                 return false;
 655         }
 656         if (!ignore_toggle) {
 657                 switch (ev->button) {
 658                         case 1:
 659                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 660
 661                                         /* Primary+Tertiary-click applies change to all routes */
 662
 663                                         meter_point_change_target = MeterPointChangeAll;
 664
 665                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 666
 667                                         /* Primary-click: apply change to all routes in group */
 668
 669                                         meter_point_change_target = MeterPointChangeGroup;
 670
 671                                 } else {
 672
 673                                         /* click: change just this route */
 674
 675                                         meter_point_change_target = MeterPointChangeSingle;
 676                                 }
 677                                 Gtkmm2ext::anchored_menu_popup(&meter_point_menu,
 678                                                              &meter_point_button,
 679                                                            "", 1, ev->time);
 680                                 break;
 681                         default:
 682                                 break;
 683                 }
 684         }
 685         return true;
 686 }
 687
 688 void
 689 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 690 {
 691         route.set_meter_point (mp);
 692 }
 693
 694 void
 695 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 696 {
 697         RouteGroup* route_group;
 698
 699         if ((route_group = route.route_group ()) != 0) {
 700                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 701         } else {
 702                 route.set_meter_point (mp);
 703         }
 704 }
 705
 706 void
 707 GainMeterBase::meter_point_clicked (MeterPoint mp)
 708 {
 709         if (_route) {
 710                 switch (meter_point_change_target) {
 711                         case MeterPointChangeAll:
 712                                 _session->foreach_route (this, &GainMeterBase::set_meter_point, mp);
 713                                 break;
 714                         case MeterPointChangeGroup:
 715                                 set_route_group_meter_point (*_route, mp);
 716                                 break;
 717                         case MeterPointChangeSingle:
 718                                 _route->set_meter_point (mp);
 719                                 break;
 720                 }
 721         }
 722 }
 723
 724 void
 725 GainMeterBase::amp_start_touch ()
 726 {
 727         _control->start_touch (_control->session().transport_frame());
 728 }
 729
 730 void
 731 GainMeterBase::amp_stop_touch ()
 732 {
 733         _control->stop_touch (false, _control->session().transport_frame());
 734         effective_gain_display ();
 735 }
 736
 737 gint
 738 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 739 {
 740         if (ev->type == GDK_BUTTON_RELEASE) {
 741                 return TRUE;
 742         }
 743
 744         switch (ev->button) {
 745                 case 1:
 746                         gain_astate_propagate = Keyboard::modifier_state_contains (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier | Keyboard::TertiaryModifier));
 747                         Gtkmm2ext::anchored_menu_popup(&gain_astate_menu,
 748                                                        &gain_automation_state_button,
 749                                                        "", 1, ev->time);
 750                         break;
 751                 default:
 752                         break;
 753         }
 754
 755         return TRUE;
 756 }
 757
 758
 759 string
 760 GainMeterBase::astate_string (AutoState state)
 761 {
 762         return _astate_string (state, false);
 763 }
 764
 765 string
 766 GainMeterBase::short_astate_string (AutoState state)
 767 {
 768         return _astate_string (state, true);
 769 }
 770
 771 string
 772 GainMeterBase::_astate_string (AutoState state, bool shrt)
 773 {
 774         string sstr;
 775
 776         switch (state) {
 777         case ARDOUR::Off:
 778                 sstr = (shrt ? "M" : _("M"));
 779                 break;
 780         case Play:
 781                 sstr = (shrt ? "P" : _("P"));
 782                 break;
 783         case Touch:
 784                 sstr = (shrt ? "T" : _("T"));
 785                 break;
 786         case Write:
 787                 sstr = (shrt ? "W" : _("W"));
 788                 break;
 789         }
 790
 791         return sstr;
 792 }
 793
 794 void
 795 GainMeterBase::gain_automation_state_changed ()
 796 {
 797         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed);
 798
 799         switch (_width) {
 800         case Wide:
 801                 gain_automation_state_button.set_text (astate_string(_control->alist()->automation_state()));
 802                 break;
 803         case Narrow:
 804                 gain_automation_state_button.set_text (short_astate_string(_control->alist()->automation_state()));
 805                 break;
 806         }
 807
 808         const bool automation_watch_required = (_control->alist()->automation_state() != ARDOUR::Off);
 809
 810         if (gain_automation_state_button.get_active() != automation_watch_required) {
 811                 ignore_toggle = true;
 812                 gain_automation_state_button.set_active (automation_watch_required);
 813                 ignore_toggle = false;
 814         }
 815
 816         update_gain_sensitive ();
 817
 818         gain_watching.disconnect();
 819 }
 820
 821 const ChanCount
 822 GainMeterBase::meter_channels() const
 823 {
 824                 if (_meter) { return _meter->input_streams(); }
 825                 else { return ChanCount(); }
 826 }
 827 void
 828 GainMeterBase::update_meters()
 829 {
 830         char buf[32];
 831         float mpeak = level_meter->update_meters();
 832
 833         if (mpeak > max_peak) {
 834                 max_peak = mpeak;
 835                 if (mpeak <= -200.0f) {
 836                         peak_display.set_text (_("-inf"));
 837                 } else {
 838                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 839                         peak_display.set_text (buf);
 840                 }
 841         }
 842         if (mpeak >= UIConfiguration::instance().get_meter_peak()) {
 843                 peak_display.set_name ("MixerStripPeakDisplayPeak");
 844         }
 845 }
 846
 847 void GainMeterBase::color_handler(bool /*dpi*/)
 848 {
 849         setup_meters();
 850 }
 851
 852 void
 853 GainMeterBase::set_width (Width w, int len)
 854 {
 855         _width = w;
 856         int meter_width = 5;
 857         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 858                 meter_width = 10;
 859         }
 860         level_meter->setup_meters(len, meter_width);
 861 }
 862
 863
 864 void
 865 GainMeterBase::on_theme_changed()
 866 {
 867 }
 868
 869 void
 870 GainMeterBase::redraw_metrics()
 871 {
 872         meter_metric_area.queue_draw ();
 873         meter_ticks1_area.queue_draw ();
 874         meter_ticks2_area.queue_draw ();
 875 }
 876
 877 #define PX_SCALE(pxmin, dflt) rint(std::max((double)pxmin, (double)dflt * UIConfiguration::instance().get_ui_scale()))
 878
 879 GainMeter::GainMeter (Session* s, int fader_length)
 880         : GainMeterBase (s, false, fader_length, 24)
 881         , gain_display_box(true, 0)
 882         , hbox(true, 2)
 883 {
 884         if (gain_display.get_parent()) {
 885                 gain_display.get_parent()->remove (gain_display);
 886         }
 887         gain_display_box.pack_start (gain_display, true, true);
 888
 889         if (peak_display.get_parent()) {
 890                 peak_display.get_parent()->remove (gain_display);
 891         }
 892         gain_display_box.pack_start (peak_display, true, true);
 893
 894         meter_metric_area.set_name ("AudioTrackMetrics");
 895         meter_metric_area.set_size_request(PX_SCALE(24, 24), -1);
 896
 897         gain_automation_state_button.set_name ("mixer strip button");
 898
 899         set_tooltip (gain_automation_state_button, _("Fader automation mode"));
 900
 901         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 902
 903         gain_automation_state_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 904
 905         fader_vbox.set_spacing (0);
 906         fader_vbox.pack_start (*gain_slider, true, true);
 907
 908         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 909         fader_alignment.add (fader_vbox);
 910
 911         hbox.pack_start (fader_alignment, true, true);
 912
 913         set_spacing (PX_SCALE(2, 2));
 914
 915         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 916         pack_start (hbox, true, true);
 917
 918         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 919         meter_alignment.add (*level_meter);
 920
 921         meter_metric_area.signal_expose_event().connect (
 922                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 923
 924         meter_ticks1_area.set_size_request (PX_SCALE(3, 3), -1);
 925         meter_ticks2_area.set_size_request (PX_SCALE(3, 3), -1);
 926
 927         meter_ticks1_area.signal_expose_event().connect (
 928                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
 929         meter_ticks2_area.signal_expose_event().connect (
 930                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
 931
 932         meter_hbox.pack_start (meter_ticks1_area, false, false);
 933         meter_hbox.pack_start (meter_alignment, false, false);
 934         meter_hbox.pack_start (meter_ticks2_area, false, false);
 935         meter_hbox.pack_start (meter_metric_area, false, false);
 936 }
 937 #undef PX_SCALE
 938
 939 GainMeter::~GainMeter () { }
 940
 941 void
 942 GainMeter::set_controls (boost::shared_ptr<Route> r,
 943                          boost::shared_ptr<PeakMeter> meter,
 944                          boost::shared_ptr<Amp> amp,
 945                          boost::shared_ptr<GainControl> control)
 946 {
 947         if (meter_hbox.get_parent()) {
 948                 hbox.remove (meter_hbox);
 949         }
 950
 951 //      if (gain_automation_state_button.get_parent()) {
 952 //              fader_vbox->remove (gain_automation_state_button);
 953 //      }
 954
 955         GainMeterBase::set_controls (r, meter, amp, control);
 956
 957         if (_meter) {
 958                 _meter->ConfigurationChanged.connect (
 959                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
 960                         );
 961                 _meter->TypeChanged.connect (
 962                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_type_changed, this, _1), gui_context()
 963                         );
 964
 965                 meter_configuration_changed (_meter->input_streams ());
 966         }
 967
 968
 969         if (_route) {
 970                 _route->active_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::route_active_changed, this), gui_context ());
 971                 hbox.pack_start (meter_hbox, true, true);
 972                 meter_hbox.show ();
 973         }
 974
 975 //      if (r && !r->is_auditioner()) {
 976 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 977 //      }
 978
 979         gain_display_box.show ();
 980         gain_display.show ();
 981         gain_slider->show ();
 982         fader_vbox.show ();
 983         fader_alignment.show ();
 984         hbox.show ();
 985         setup_meters ();
 986 }
 987
 988 int
 989 GainMeter::get_gm_width ()
 990 {
 991         Gtk::Requisition sz;
 992         int min_w = 0;
 993         sz.width = 0;
 994         meter_metric_area.size_request (sz);
 995         min_w += sz.width;
 996         level_meter->size_request (sz);
 997         min_w += sz.width;
 998
 999         fader_alignment.size_request (sz);
1000         if (_width == Wide)
1001                 return max(sz.width * 2, min_w * 2) + 6;
1002         else
1003                 return sz.width + min_w + 6;
1004
1005 }
1006
1007 gint
1008 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1009 {
1010         if (!_route) {
1011                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1012                 return meter_expose_metrics(ev, MeterPeak, _types, &meter_metric_area);
1013         }
1014         return meter_expose_metrics(ev, _route->meter_type(), _types, &meter_metric_area);
1015 }
1016
1017 gint
1018 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
1019 {
1020         if (!_route) {
1021                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1022                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks1_area);
1023         }
1024         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks1_area);
1025 }
1026
1027 gint
1028 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1029 {
1030         if (!_route) {
1031                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1032                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks2_area);
1033         }
1034         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks2_area);
1035 }
1036
1037 void
1038 GainMeter::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
1039 {
1040         gain_display.queue_draw();
1041         peak_display.queue_draw();
1042 }
1043
1044 boost::shared_ptr<PBD::Controllable>
1045 GainMeterBase::get_controllable()
1046 {
1047         if (_amp) {
1048                 return _control;
1049         } else {
1050                 return boost::shared_ptr<PBD::Controllable>();
1051         }
1052 }
1053
1054 bool
1055 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1056 {
1057         return static_cast<bool>(LevelMeterButtonPress (ev)); /* EMIT SIGNAL */
1058 }
1059
1060 void
1061 GainMeter::meter_configuration_changed (ChanCount c)
1062 {
1063         int type = 0;
1064         _types.clear ();
1065
1066         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1067                 if (c.get (*i) > 0) {
1068                         _types.push_back (*i);
1069                         type |= 1 << (*i);
1070                 }
1071         }
1072
1073         if (_route
1074                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1075                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1076                         ) {
1077                 if (_route->active()) {
1078                         set_meter_strip_name ("AudioBusMetrics");
1079                 } else {
1080                         set_meter_strip_name ("AudioBusMetricsInactive");
1081                 }
1082         }
1083         else if (
1084                            (type == (1 << DataType::MIDI))
1085                         || (_route && boost::dynamic_pointer_cast<MidiTrack>(_route))
1086                         ) {
1087                 if (!_route || _route->active()) {
1088                         set_meter_strip_name ("MidiTrackMetrics");
1089                 } else {
1090                         set_meter_strip_name ("MidiTrackMetricsInactive");
1091                 }
1092         }
1093         else if (type == (1 << DataType::AUDIO)) {
1094                 if (!_route || _route->active()) {
1095                         set_meter_strip_name ("AudioTrackMetrics");
1096                 } else {
1097                         set_meter_strip_name ("AudioTrackMetricsInactive");
1098                 }
1099         } else {
1100                 if (!_route || _route->active()) {
1101                         set_meter_strip_name ("AudioMidiTrackMetrics");
1102                 } else {
1103                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1104                 }
1105         }
1106
1107         setup_meters();
1108         meter_clear_pattern_cache(4);
1109         on_style_changed(Glib::RefPtr<Gtk::Style>());
1110 }
1111
1112 void
1113 GainMeter::route_active_changed ()
1114 {
1115         if (_meter) {
1116                 meter_configuration_changed (_meter->input_streams ());
1117         }
1118 }
1119
1120 void
1121 GainMeter::meter_type_changed (MeterType t)
1122 {
1123         _route->set_meter_type(t);
1124         RedrawMetrics();
1125 }