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