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 <pangomm.h>
  23
  24 #include <gtkmm/alignment.h>
  25 #include <gdkmm/color.h>
  26 #include <gtkmm/style.h>
  27
  28 #include "ardour/amp.h"
  29 #include "ardour/logmeter.h"
  30 #include "ardour/route_group.h"
  31 #include "ardour/session_route.h"
  32 #include "ardour/dB.h"
  33 #include "ardour/utils.h"
  34
  35 #include "gtkmm2ext/utils.h"
  36 #include "gtkmm2ext/gtk_ui.h"
  37
  38 #include "widgets/tooltips.h"
  39
  40 #include "pbd/fastlog.h"
  41 #include "pbd/stacktrace.h"
  42
  43 #include "gain_meter.h"
  44 #include "gui_thread.h"
  45 #include "keyboard.h"
  46 #include "public_editor.h"
  47 #include "utils.h"
  48 #include "meter_patterns.h"
  49 #include "timers.h"
  50 #include "ui_config.h"
  51
  52 #include "ardour/session.h"
  53 #include "ardour/route.h"
  54 #include "ardour/meter.h"
  55 #include "ardour/audio_track.h"
  56 #include "ardour/midi_track.h"
  57 #include "ardour/dB.h"
  58
  59 #include "pbd/i18n.h"
  60
  61 using namespace ARDOUR;
  62 using namespace ArdourWidgets;
  63 using namespace PBD;
  64 using namespace Gtkmm2ext;
  65 using namespace Gtk;
  66 using namespace std;
  67 using Gtkmm2ext::Keyboard;
  68 using namespace ArdourMeter;
  69
  70 static void
  71 reset_cursor_to_default (Gtk::Entry* widget)
  72 {
  73         Glib::RefPtr<Gdk::Window> win = widget->get_text_window ();
  74         if (win) {
  75                 /* C++ doesn't provide a pointer argument version of this
  76                    (i.e. you cannot set to NULL to get the default/parent
  77                    cursor)
  78                 */
  79                 gdk_window_set_cursor (win->gobj(), 0);
  80         }
  81 }
  82
  83 static void
  84 reset_cursor_to_default_state (Gtk::StateType, Gtk::Entry* widget)
  85 {
  86         reset_cursor_to_default (widget);
  87 }
  88
  89 sigc::signal<void, ARDOUR::AutoState> GainMeterBase::ChangeGainAutomationState;
  90
  91 GainMeterBase::GainMeterBase (Session* s, bool horizontal, int fader_length, int fader_girth)
  92         : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()),  // value
  93                            0.0,  // lower
  94                            1.0,  // upper
  95                            dB_coeff_step(Config->get_max_gain()) / 10.0,  // step increment
  96                            dB_coeff_step(Config->get_max_gain()))  // page increment
  97         , gain_automation_state_button ("")
  98         , meter_point_button (_("pre"))
  99         , gain_astate_propagate (false)
 100         , _data_type (DataType::AUDIO)
 101 {
 102         using namespace Menu_Helpers;
 103
 104         set_session (s);
 105
 106         ignore_toggle = false;
 107         meter_menu = 0;
 108         next_release_selects = false;
 109         _width = Wide;
 110
 111         fader_length = rint (fader_length * UIConfiguration::instance().get_ui_scale());
 112         fader_girth = rint (fader_girth * UIConfiguration::instance().get_ui_scale());
 113
 114         if (horizontal) {
 115                 gain_slider = manage (new HSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 116         } else {
 117                 gain_slider = manage (new VSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 118         }
 119
 120         level_meter = new LevelMeterHBox(_session);
 121
 122         level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
 123         meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
 124         meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
 125
 126         gain_slider->set_tweaks (ArdourFader::Tweaks(ArdourFader::NoButtonForward | ArdourFader::NoVerticalScroll));
 127         gain_slider->StartGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_start_touch));
 128         gain_slider->StopGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_stop_touch));
 129         gain_slider->set_name ("GainFader");
 130
 131         gain_display.set_name ("MixerStripGainDisplay");
 132         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 133         gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
 134         gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 135         gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 136         gain_display.set_alignment (0.5);
 137
 138         peak_display.set_name ("MixerStripPeakDisplay");
 139         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 140         max_peak = minus_infinity();
 141         peak_display.set_text (_("-inf"));
 142         peak_display.set_alignment (0.5);
 143
 144         /* stuff related to the fact that the peak display is not, in
 145            fact, supposed to be a text entry.
 146         */
 147         peak_display.set_events (peak_display.get_events() & ~(Gdk::EventMask (Gdk::LEAVE_NOTIFY_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::POINTER_MOTION_MASK)));
 148         peak_display.signal_map().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default), &peak_display));
 149         peak_display.signal_state_changed().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default_state), &peak_display));
 150         peak_display.unset_flags (Gtk::CAN_FOCUS);
 151         peak_display.set_editable (false);
 152
 153         gain_automation_state_button.set_name ("mixer strip button");
 154
 155         set_tooltip (gain_automation_state_button, _("Fader automation mode"));
 156
 157         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 158
 159         gain_automation_state_button.set_size_request(15, 15);
 160
 161         gain_astate_menu.set_name ("ArdourContextMenu");
 162         gain_astate_menu.set_reserve_toggle_size(false);
 163
 164         meter_point_button.set_name ("mixer strip button");
 165
 166         set_tooltip (&meter_point_button, _("Metering point"));
 167
 168         meter_point_button.unset_flags (Gtk::CAN_FOCUS);
 169
 170         meter_point_button.set_size_request(15, 15);
 171
 172         meter_point_menu.set_name ("ArdourContextMenu");
 173         meter_point_menu.set_reserve_toggle_size(false);
 174
 175         meter_point_menu.items().clear ();
 176         meter_point_menu.items().push_back (MenuElem(_("Input"),
 177          sigc::bind (sigc::mem_fun (*this,
 178          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterInput)));
 179         meter_point_menu.items().push_back (MenuElem(_("Pre Fader"),
 180          sigc::bind (sigc::mem_fun (*this,
 181          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterPreFader)));
 182         meter_point_menu.items().push_back (MenuElem(_("Post Fader"),
 183          sigc::bind (sigc::mem_fun (*this,
 184          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterPostFader)));
 185         meter_point_menu.items().push_back (MenuElem(_("Output"),
 186          sigc::bind (sigc::mem_fun (*this,
 187          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterOutput)));
 188         meter_point_menu.items().push_back (MenuElem(_("Custom"),
 189          sigc::bind (sigc::mem_fun (*this,
 190          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterCustom)));
 191         meter_point_button.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeter::meter_press), false);
 192
 193         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::fader_moved));
 194         peak_display.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_press), false);
 195         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 196         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 197
 198         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 199         ResetRoutePeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_route_peak_display));
 200         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 201         RedrawMetrics.connect (sigc::mem_fun(*this, &GainMeterBase::redraw_metrics));
 202
 203         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 204         UIConfiguration::instance().ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 205         UIConfiguration::instance().DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 206 }
 207
 208 GainMeterBase::~GainMeterBase ()
 209 {
 210         delete meter_menu;
 211         delete level_meter;
 212 }
 213
 214 void
 215 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 216                              boost::shared_ptr<PeakMeter> pm,
 217                              boost::shared_ptr<Amp> amp,
 218                              boost::shared_ptr<GainControl> control)
 219 {
 220         connections.clear ();
 221         model_connections.drop_connections ();
 222
 223         /* no meter and no control? nothing to do ... */
 224
 225         if (!pm && !control) {
 226                 level_meter->set_meter (0);
 227                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 228                 _meter.reset ();
 229                 _amp.reset ();
 230                 _route.reset ();
 231                 _control.reset ();
 232                 return;
 233         }
 234
 235         _meter = pm;
 236         _amp = amp;
 237         _route = r;
 238         _control = control;
 239
 240         level_meter->set_meter (pm.get());
 241         gain_slider->set_controllable (_control);
 242
 243         if (amp) {
 244                 amp->ConfigurationChanged.connect (
 245                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 246                         );
 247         }
 248
 249         setup_gain_adjustment ();
 250
 251         if (!_route || !_route->is_auditioner()) {
 252
 253                 using namespace Menu_Helpers;
 254
 255                 gain_astate_menu.items().clear ();
 256
 257                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 258                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Off)));
 259                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 260                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Play)));
 261                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 262                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Write)));
 263                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 264                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Touch)));
 265
 266                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 267                 connections.push_back (ChangeGainAutomationState.connect (sigc::mem_fun(*this, &GainMeterBase::set_gain_astate)));
 268
 269                 _control->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 270
 271                 gain_automation_state_changed ();
 272         }
 273
 274         _control->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 275
 276         gain_changed ();
 277         show_gain ();
 278         update_gain_sensitive ();
 279
 280         if (!_meter) {
 281                 peak_display.hide ();
 282         } else {
 283                 peak_display.show ();
 284         }
 285 }
 286
 287 void
 288 GainMeterBase::set_gain_astate (AutoState as)
 289 {
 290         if (gain_astate_propagate) {
 291                 gain_astate_propagate = false;
 292                 ChangeGainAutomationState (as);
 293                 return;
 294         }
 295         if (_amp) {
 296                 _amp->set_parameter_automation_state (Evoral::Parameter (GainAutomation), as);
 297         } else if (_control) {
 298                 _control->set_automation_state (as);
 299                 _session->set_dirty ();
 300         }
 301 }
 302
 303 void
 304 GainMeterBase::setup_gain_adjustment ()
 305 {
 306         if (!_amp) {
 307                 return;
 308         }
 309
 310         if (_previous_amp_output_streams == _amp->output_streams ()) {
 311                 return;
 312         }
 313
 314         ignore_toggle = true;
 315
 316         if (_amp->output_streams().n_midi() <=  _amp->output_streams().n_audio()) {
 317                 _data_type = DataType::AUDIO;
 318                 gain_adjustment.set_lower (GAIN_COEFF_ZERO);
 319                 gain_adjustment.set_upper (GAIN_COEFF_UNITY);
 320                 gain_adjustment.set_step_increment (dB_coeff_step(Config->get_max_gain()) / 10.0);
 321                 gain_adjustment.set_page_increment (dB_coeff_step(Config->get_max_gain()));
 322                 gain_slider->set_default_value (gain_to_slider_position_with_max (GAIN_COEFF_UNITY, Config->get_max_gain()));
 323         } else {
 324                 _data_type = DataType::MIDI;
 325                 gain_adjustment.set_lower (0.0);
 326                 gain_adjustment.set_upper (2.0);
 327                 gain_adjustment.set_step_increment (1.0/128.0);
 328                 gain_adjustment.set_page_increment (10.0/128.0);
 329                 gain_slider->set_default_value (1.0);
 330         }
 331
 332         ignore_toggle = false;
 333
 334         effective_gain_display ();
 335
 336         _previous_amp_output_streams = _amp->output_streams ();
 337 }
 338
 339 void
 340 GainMeterBase::hide_all_meters ()
 341 {
 342         level_meter->hide_meters();
 343 }
 344
 345 void
 346 GainMeter::hide_all_meters ()
 347 {
 348         GainMeterBase::hide_all_meters ();
 349 }
 350
 351 void
 352 GainMeterBase::setup_meters (int len)
 353 {
 354         int meter_width = 5;
 355         uint32_t meter_channels = 0;
 356         if (_meter) {
 357                 meter_channels = _meter->input_streams().n_total();
 358         } else if (_route) {
 359                 meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 360         }
 361
 362         switch (_width) {
 363                 case Wide:
 364                         //meter_ticks1_area.show();
 365                         //meter_ticks2_area.show();
 366                         meter_metric_area.show();
 367                         if (meter_channels == 1) {
 368                                 meter_width = 10;
 369                         }
 370                         break;
 371                 case Narrow:
 372                         if (meter_channels > 1) {
 373                                 meter_width = 4;
 374                         }
 375                         //meter_ticks1_area.hide();
 376                         //meter_ticks2_area.hide();
 377                         meter_metric_area.hide();
 378                         break;
 379         }
 380         level_meter->setup_meters(len, meter_width);
 381 }
 382
 383 void
 384 GainMeterBase::set_type (MeterType t)
 385 {
 386         level_meter->set_meter_type(t);
 387 }
 388
 389 void
 390 GainMeter::setup_meters (int len)
 391 {
 392         switch (_width) {
 393                 case Wide:
 394                         {
 395                                 uint32_t meter_channels = 0;
 396                                 if (_meter) {
 397                                         meter_channels = _meter->input_streams().n_total();
 398                                 } else if (_route) {
 399                                         meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 400                                 }
 401                                 hbox.set_homogeneous(meter_channels < 7 ? true : false);
 402                         }
 403                         break;
 404                 case Narrow:
 405                         hbox.set_homogeneous(false);
 406                         break;
 407         }
 408         GainMeterBase::setup_meters (len);
 409 }
 410
 411 void
 412 GainMeter::set_type (MeterType t)
 413 {
 414         GainMeterBase::set_type (t);
 415 }
 416
 417 bool
 418 GainMeterBase::gain_key_press (GdkEventKey* ev)
 419 {
 420         if (ARDOUR_UI_UTILS::key_is_legal_for_numeric_entry (ev->keyval)) {
 421                 /* drop through to normal handling */
 422                 return false;
 423         }
 424         /* illegal key for gain entry */
 425         return true;
 426 }
 427
 428 bool
 429 GainMeterBase::peak_button_press (GdkEventButton* ev)
 430 {
 431         return true;
 432 }
 433
 434 bool
 435 GainMeterBase::peak_button_release (GdkEventButton* ev)
 436 {
 437         /* reset peak label */
 438
 439         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 440                 ResetAllPeakDisplays ();
 441         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 442                 if (_route) {
 443                         ResetGroupPeakDisplays (_route->route_group());
 444                 }
 445         } else {
 446                 ResetRoutePeakDisplays (_route.get());
 447         }
 448
 449         return true;
 450 }
 451
 452 void
 453 GainMeterBase::reset_peak_display ()
 454 {
 455         if (!_route) {
 456                 // catch "reset all" for VCAs
 457                 return;
 458         }
 459         _meter->reset_max();
 460         level_meter->clear_meters();
 461         max_peak = minus_infinity ();
 462         peak_display.set_text (_("-inf"));
 463         peak_display.set_name ("MixerStripPeakDisplay");
 464 }
 465
 466 void
 467 GainMeterBase::reset_route_peak_display (Route* route)
 468 {
 469         if (_route && _route.get() == route) {
 470                 reset_peak_display ();
 471         }
 472 }
 473
 474 void
 475 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 476 {
 477         if (_route && group == _route->route_group()) {
 478                 reset_peak_display ();
 479         }
 480 }
 481
 482 void
 483 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 484 {
 485         using namespace Menu_Helpers;
 486
 487         if (meter_menu == 0) {
 488                 meter_menu = new Gtk::Menu;
 489                 MenuList& items = meter_menu->items();
 490
 491                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 492                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 493                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 494                 items.push_back (SeparatorElem());
 495                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 496                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 497                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 498         }
 499
 500         meter_menu->popup (1, ev->time);
 501 }
 502
 503 bool
 504 GainMeterBase::gain_focused (GdkEventFocus* ev)
 505 {
 506         if (ev->in) {
 507                 gain_display.select_region (0, -1);
 508         } else {
 509                 gain_display.select_region (0, 0);
 510         }
 511         return false;
 512 }
 513
 514 void
 515 GainMeterBase::gain_activated ()
 516 {
 517         float f;
 518
 519         // Use the user's preferred locale/LC_NUMERIC setting
 520         if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 521                 return;
 522         }
 523
 524         /* clamp to displayable values */
 525         if (_data_type == DataType::AUDIO) {
 526                 f = min (f, 6.0f);
 527                 _control->set_value (dB_to_coefficient(f), Controllable::UseGroup);
 528         } else {
 529                 f = min (fabs (f), 2.0f);
 530                 _control->set_value (f, Controllable::UseGroup);
 531         }
 532
 533         if (gain_display.has_focus()) {
 534                 Gtk::Widget* w = gain_display.get_toplevel();
 535                 if (w) {
 536                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 537
 538                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 539
 540                         if (win) {
 541                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 542                                 if (f) {
 543                                         gtk_widget_grab_focus (f);
 544                                         return;
 545                                 }
 546                         }
 547                 }
 548         }
 549 }
 550
 551 void
 552 GainMeterBase::show_gain ()
 553 {
 554         char buf[32];
 555
 556         float v = gain_adjustment.get_value();
 557
 558         switch (_data_type) {
 559         case DataType::AUDIO:
 560                 if (v == 0.0) {
 561                         strcpy (buf, _("-inf"));
 562                 } else {
 563                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 564                 }
 565                 break;
 566         case DataType::MIDI:
 567                 snprintf (buf, sizeof (buf), "%.1f", v);
 568                 break;
 569         }
 570
 571         gain_display.set_text (buf);
 572 }
 573
 574 void
 575 GainMeterBase::fader_moved ()
 576 {
 577         if (!ignore_toggle) {
 578
 579                 gain_t value;
 580
 581                 /* convert from adjustment range (0..1) to gain coefficient */
 582
 583                 if (_data_type == DataType::AUDIO) {
 584                         value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 585                 } else {
 586                         value = gain_adjustment.get_value();
 587                 }
 588
 589                 // XXX hack allow to override group
 590                 // (this breaks group'ed  shift+click reset)
 591                 if (Keyboard::the_keyboard().key_is_down (GDK_Shift_R)
 592                                 || Keyboard::the_keyboard().key_is_down (GDK_Shift_L)) {
 593                         _control->set_value (value, Controllable::InverseGroup);
 594                 } else {
 595                         _control->set_value (value, Controllable::UseGroup);
 596                 }
 597         }
 598
 599         show_gain ();
 600 }
 601
 602 void
 603 GainMeterBase::effective_gain_display ()
 604 {
 605         gain_t fader_position = 0;
 606
 607         switch (_data_type) {
 608         case DataType::AUDIO:
 609                 /* the position of the fader should reflect any master gain,
 610                  * not just the control's own inherent value
 611                  */
 612                 fader_position = gain_to_slider_position_with_max (_control->get_value(), Config->get_max_gain());
 613                 break;
 614         case DataType::MIDI:
 615                 fader_position = _control->get_value ();
 616                 break;
 617         }
 618
 619         if (gain_adjustment.get_value() != fader_position) {
 620                 ignore_toggle = true;
 621                 gain_adjustment.set_value (fader_position);
 622                 ignore_toggle = false;
 623         }
 624 }
 625
 626 void
 627 GainMeterBase::gain_changed ()
 628 {
 629         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed);
 630         effective_gain_display ();
 631 }
 632
 633 void
 634 GainMeterBase::set_meter_strip_name (const char * name)
 635 {
 636         char tmp[256];
 637         meter_metric_area.set_name (name);
 638         sprintf(tmp, "Mark%sLeft", name);
 639         meter_ticks1_area.set_name (tmp);
 640         sprintf(tmp, "Mark%sRight", name);
 641         meter_ticks2_area.set_name (tmp);
 642 }
 643
 644 void
 645 GainMeterBase::set_fader_name (const char * name)
 646 {
 647         gain_slider->set_name (name);
 648 }
 649
 650 void
 651 GainMeterBase::update_gain_sensitive ()
 652 {
 653         bool x = !(_control->alist()->automation_state() & Play);
 654         static_cast<ArdourWidgets::SliderController*>(gain_slider)->set_sensitive (x);
 655 }
 656
 657 gint
 658 GainMeterBase::meter_press(GdkEventButton* ev)
 659 {
 660         if (!_route) {
 661                 return false;
 662         }
 663         if (!ignore_toggle) {
 664                 switch (ev->button) {
 665                         case 1:
 666                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 667
 668                                         /* Primary+Tertiary-click applies change to all routes */
 669
 670                                         meter_point_change_target = MeterPointChangeAll;
 671
 672                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 673
 674                                         /* Primary-click: apply change to all routes in group */
 675
 676                                         meter_point_change_target = MeterPointChangeGroup;
 677
 678                                 } else {
 679
 680                                         /* click: change just this route */
 681
 682                                         meter_point_change_target = MeterPointChangeSingle;
 683                                 }
 684                                 Gtkmm2ext::anchored_menu_popup(&meter_point_menu,
 685                                                              &meter_point_button,
 686                                                            "", 1, ev->time);
 687                                 break;
 688                         default:
 689                                 break;
 690                 }
 691         }
 692         return true;
 693 }
 694
 695 void
 696 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 697 {
 698         route.set_meter_point (mp);
 699 }
 700
 701 void
 702 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 703 {
 704         RouteGroup* route_group;
 705
 706         if ((route_group = route.route_group ()) != 0) {
 707                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 708         } else {
 709                 route.set_meter_point (mp);
 710         }
 711 }
 712
 713 void
 714 GainMeterBase::meter_point_clicked (MeterPoint mp)
 715 {
 716         if (_route) {
 717                 switch (meter_point_change_target) {
 718                         case MeterPointChangeAll:
 719                                 _session->foreach_route (this, &GainMeterBase::set_meter_point, mp);
 720                                 break;
 721                         case MeterPointChangeGroup:
 722                                 set_route_group_meter_point (*_route, mp);
 723                                 break;
 724                         case MeterPointChangeSingle:
 725                                 _route->set_meter_point (mp);
 726                                 break;
 727                 }
 728         }
 729 }
 730
 731 void
 732 GainMeterBase::amp_start_touch ()
 733 {
 734         _control->start_touch (_control->session().transport_frame());
 735 }
 736
 737 void
 738 GainMeterBase::amp_stop_touch ()
 739 {
 740         _control->stop_touch (_control->session().transport_frame());
 741         effective_gain_display ();
 742 }
 743
 744 gint
 745 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 746 {
 747         if (ev->type == GDK_BUTTON_RELEASE) {
 748                 return TRUE;
 749         }
 750
 751         switch (ev->button) {
 752                 case 1:
 753                         gain_astate_propagate = Keyboard::modifier_state_contains (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier | Keyboard::TertiaryModifier));
 754                         Gtkmm2ext::anchored_menu_popup(&gain_astate_menu,
 755                                                        &gain_automation_state_button,
 756                                                        "", 1, ev->time);
 757                         break;
 758                 default:
 759                         break;
 760         }
 761
 762         return TRUE;
 763 }
 764
 765
 766 string
 767 GainMeterBase::astate_string (AutoState state)
 768 {
 769         return _astate_string (state, false);
 770 }
 771
 772 string
 773 GainMeterBase::short_astate_string (AutoState state)
 774 {
 775         return _astate_string (state, true);
 776 }
 777
 778 string
 779 GainMeterBase::_astate_string (AutoState state, bool shrt)
 780 {
 781         string sstr;
 782
 783         switch (state) {
 784         case ARDOUR::Off:
 785                 sstr = (shrt ? "M" : _("M"));
 786                 break;
 787         case Play:
 788                 sstr = (shrt ? "P" : _("P"));
 789                 break;
 790         case Touch:
 791                 sstr = (shrt ? "T" : _("T"));
 792                 break;
 793         case Write:
 794                 sstr = (shrt ? "W" : _("W"));
 795                 break;
 796         }
 797
 798         return sstr;
 799 }
 800
 801 void
 802 GainMeterBase::gain_automation_state_changed ()
 803 {
 804         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed);
 805
 806         switch (_width) {
 807         case Wide:
 808                 gain_automation_state_button.set_text (astate_string(_control->alist()->automation_state()));
 809                 break;
 810         case Narrow:
 811                 gain_automation_state_button.set_text (short_astate_string(_control->alist()->automation_state()));
 812                 break;
 813         }
 814
 815         const bool automation_watch_required = (_control->alist()->automation_state() != ARDOUR::Off);
 816
 817         if (gain_automation_state_button.get_active() != automation_watch_required) {
 818                 ignore_toggle = true;
 819                 gain_automation_state_button.set_active (automation_watch_required);
 820                 ignore_toggle = false;
 821         }
 822
 823         update_gain_sensitive ();
 824
 825         gain_watching.disconnect();
 826 }
 827
 828 const ChanCount
 829 GainMeterBase::meter_channels() const
 830 {
 831                 if (_meter) { return _meter->input_streams(); }
 832                 else { return ChanCount(); }
 833 }
 834 void
 835 GainMeterBase::update_meters()
 836 {
 837         char buf[32];
 838         float mpeak = level_meter->update_meters();
 839
 840         if (mpeak > max_peak) {
 841                 max_peak = mpeak;
 842                 if (mpeak <= -200.0f) {
 843                         peak_display.set_text (_("-inf"));
 844                 } else {
 845                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 846                         peak_display.set_text (buf);
 847                 }
 848         }
 849         if (mpeak >= UIConfiguration::instance().get_meter_peak()) {
 850                 peak_display.set_name ("MixerStripPeakDisplayPeak");
 851         }
 852 }
 853
 854 void GainMeterBase::color_handler(bool /*dpi*/)
 855 {
 856         setup_meters();
 857 }
 858
 859 void
 860 GainMeterBase::set_width (Width w, int len)
 861 {
 862         _width = w;
 863         int meter_width = 5;
 864         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 865                 meter_width = 10;
 866         }
 867         level_meter->setup_meters(len, meter_width);
 868 }
 869
 870
 871 void
 872 GainMeterBase::on_theme_changed()
 873 {
 874 }
 875
 876 void
 877 GainMeterBase::redraw_metrics()
 878 {
 879         meter_metric_area.queue_draw ();
 880         meter_ticks1_area.queue_draw ();
 881         meter_ticks2_area.queue_draw ();
 882 }
 883
 884 #define PX_SCALE(pxmin, dflt) rint(std::max((double)pxmin, (double)dflt * UIConfiguration::instance().get_ui_scale()))
 885
 886 GainMeter::GainMeter (Session* s, int fader_length)
 887         : GainMeterBase (s, false, fader_length, 24)
 888         , gain_display_box(true, 0)
 889         , hbox(true, 2)
 890 {
 891         if (gain_display.get_parent()) {
 892                 gain_display.get_parent()->remove (gain_display);
 893         }
 894         gain_display_box.pack_start (gain_display, true, true);
 895
 896         if (peak_display.get_parent()) {
 897                 peak_display.get_parent()->remove (gain_display);
 898         }
 899         gain_display_box.pack_start (peak_display, true, true);
 900
 901         meter_metric_area.set_name ("AudioTrackMetrics");
 902         meter_metric_area.set_size_request(PX_SCALE(24, 24), -1);
 903
 904         gain_automation_state_button.set_name ("mixer strip button");
 905
 906         set_tooltip (gain_automation_state_button, _("Fader automation mode"));
 907
 908         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 909
 910         gain_automation_state_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 911
 912         fader_vbox.set_spacing (0);
 913         fader_vbox.pack_start (*gain_slider, true, true);
 914
 915         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 916         fader_alignment.add (fader_vbox);
 917
 918         hbox.pack_start (fader_alignment, true, true);
 919
 920         set_spacing (PX_SCALE(2, 2));
 921
 922         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 923         pack_start (hbox, true, true);
 924
 925         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 926         meter_alignment.add (*level_meter);
 927
 928         meter_metric_area.signal_expose_event().connect (
 929                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 930
 931         meter_ticks1_area.set_size_request (PX_SCALE(3, 3), -1);
 932         meter_ticks2_area.set_size_request (PX_SCALE(3, 3), -1);
 933
 934         meter_ticks1_area.signal_expose_event().connect (
 935                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
 936         meter_ticks2_area.signal_expose_event().connect (
 937                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
 938
 939         meter_hbox.pack_start (meter_ticks1_area, false, false);
 940         meter_hbox.pack_start (meter_alignment, false, false);
 941         meter_hbox.pack_start (meter_ticks2_area, false, false);
 942         meter_hbox.pack_start (meter_metric_area, false, false);
 943 }
 944 #undef PX_SCALE
 945
 946 GainMeter::~GainMeter () { }
 947
 948 void
 949 GainMeter::set_controls (boost::shared_ptr<Route> r,
 950                          boost::shared_ptr<PeakMeter> meter,
 951                          boost::shared_ptr<Amp> amp,
 952                          boost::shared_ptr<GainControl> control)
 953 {
 954         if (meter_hbox.get_parent()) {
 955                 hbox.remove (meter_hbox);
 956         }
 957
 958 //      if (gain_automation_state_button.get_parent()) {
 959 //              fader_vbox->remove (gain_automation_state_button);
 960 //      }
 961
 962         GainMeterBase::set_controls (r, meter, amp, control);
 963
 964         if (_meter) {
 965                 _meter->ConfigurationChanged.connect (
 966                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
 967                         );
 968                 _meter->TypeChanged.connect (
 969                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_type_changed, this, _1), gui_context()
 970                         );
 971
 972                 meter_configuration_changed (_meter->input_streams ());
 973         }
 974
 975
 976         if (_route) {
 977                 _route->active_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::route_active_changed, this), gui_context ());
 978                 hbox.pack_start (meter_hbox, true, true);
 979                 meter_hbox.show ();
 980         }
 981
 982 //      if (r && !r->is_auditioner()) {
 983 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 984 //      }
 985
 986         gain_display_box.show ();
 987         gain_display.show ();
 988         gain_slider->show ();
 989         fader_vbox.show ();
 990         fader_alignment.show ();
 991         hbox.show ();
 992         setup_meters ();
 993 }
 994
 995 int
 996 GainMeter::get_gm_width ()
 997 {
 998         Gtk::Requisition sz;
 999         int min_w = 0;
1000         sz.width = 0;
1001         meter_metric_area.size_request (sz);
1002         min_w += sz.width;
1003         level_meter->size_request (sz);
1004         min_w += sz.width;
1005
1006         fader_alignment.size_request (sz);
1007         if (_width == Wide)
1008                 return max(sz.width * 2, min_w * 2) + 6;
1009         else
1010                 return sz.width + min_w + 6;
1011
1012 }
1013
1014 gint
1015 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1016 {
1017         if (!_route) {
1018                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1019                 return meter_expose_metrics(ev, MeterPeak, _types, &meter_metric_area);
1020         }
1021         return meter_expose_metrics(ev, _route->meter_type(), _types, &meter_metric_area);
1022 }
1023
1024 gint
1025 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
1026 {
1027         if (!_route) {
1028                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1029                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks1_area);
1030         }
1031         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks1_area);
1032 }
1033
1034 gint
1035 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1036 {
1037         if (!_route) {
1038                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1039                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks2_area);
1040         }
1041         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks2_area);
1042 }
1043
1044 void
1045 GainMeter::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
1046 {
1047         gain_display.queue_draw();
1048         peak_display.queue_draw();
1049 }
1050
1051 boost::shared_ptr<PBD::Controllable>
1052 GainMeterBase::get_controllable()
1053 {
1054         if (_amp) {
1055                 return _control;
1056         } else {
1057                 return boost::shared_ptr<PBD::Controllable>();
1058         }
1059 }
1060
1061 bool
1062 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1063 {
1064         return static_cast<bool>(LevelMeterButtonPress (ev)); /* EMIT SIGNAL */
1065 }
1066
1067 void
1068 GainMeter::meter_configuration_changed (ChanCount c)
1069 {
1070         int type = 0;
1071         _types.clear ();
1072
1073         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1074                 if (c.get (*i) > 0) {
1075                         _types.push_back (*i);
1076                         type |= 1 << (*i);
1077                 }
1078         }
1079
1080         if (_route
1081                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1082                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1083                         ) {
1084                 if (_route->active()) {
1085                         set_meter_strip_name ("AudioBusMetrics");
1086                 } else {
1087                         set_meter_strip_name ("AudioBusMetricsInactive");
1088                 }
1089         }
1090         else if (
1091                            (type == (1 << DataType::MIDI))
1092                         || (_route && boost::dynamic_pointer_cast<MidiTrack>(_route))
1093                         ) {
1094                 if (!_route || _route->active()) {
1095                         set_meter_strip_name ("MidiTrackMetrics");
1096                 } else {
1097                         set_meter_strip_name ("MidiTrackMetricsInactive");
1098                 }
1099         }
1100         else if (type == (1 << DataType::AUDIO)) {
1101                 if (!_route || _route->active()) {
1102                         set_meter_strip_name ("AudioTrackMetrics");
1103                 } else {
1104                         set_meter_strip_name ("AudioTrackMetricsInactive");
1105                 }
1106         } else {
1107                 if (!_route || _route->active()) {
1108                         set_meter_strip_name ("AudioMidiTrackMetrics");
1109                 } else {
1110                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1111                 }
1112         }
1113
1114         setup_meters();
1115         meter_clear_pattern_cache(4);
1116         on_style_changed(Glib::RefPtr<Gtk::Style>());
1117 }
1118
1119 void
1120 GainMeter::route_active_changed ()
1121 {
1122         if (_meter) {
1123                 meter_configuration_changed (_meter->input_streams ());
1124         }
1125 }
1126
1127 void
1128 GainMeter::meter_type_changed (MeterType t)
1129 {
1130         _route->set_meter_type(t);
1131         RedrawMetrics();
1132 }