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_style_button ("")
  94         , gain_automation_state_button ("")
  95         , meter_point_button (_("pre"))
  96         , gain_astate_propagate (false)
  97         , _data_type (DataType::AUDIO)
  98 {
  99         using namespace Menu_Helpers;
 100
 101         set_session (s);
 102
 103         ignore_toggle = false;
 104         meter_menu = 0;
 105         next_release_selects = false;
 106         _width = Wide;
 107
 108         fader_length = rint (fader_length * UIConfiguration::instance().get_ui_scale());
 109         fader_girth = rint (fader_girth * UIConfiguration::instance().get_ui_scale());
 110
 111         if (horizontal) {
 112                 gain_slider = manage (new HSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 113         } else {
 114                 gain_slider = manage (new VSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 115         }
 116
 117         level_meter = new LevelMeterHBox(_session);
 118
 119         level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
 120         meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
 121         meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
 122
 123         gain_slider->set_tweaks (PixFader::Tweaks(PixFader::NoButtonForward | PixFader::NoVerticalScroll));
 124         gain_slider->StartGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_start_touch));
 125         gain_slider->StopGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_stop_touch));
 126         gain_slider->set_name ("GainFader");
 127
 128         gain_display.set_name ("MixerStripGainDisplay");
 129         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 130         gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
 131         gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 132         gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 133         gain_display.set_alignment (0.5);
 134
 135         peak_display.set_name ("MixerStripPeakDisplay");
 136         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 137         max_peak = minus_infinity();
 138         peak_display.set_text (_("-inf"));
 139         peak_display.set_alignment (0.5);
 140
 141         /* stuff related to the fact that the peak display is not, in
 142            fact, supposed to be a text entry.
 143         */
 144         peak_display.set_events (peak_display.get_events() & ~(Gdk::EventMask (Gdk::LEAVE_NOTIFY_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::POINTER_MOTION_MASK)));
 145         peak_display.signal_map().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default), &peak_display));
 146         peak_display.signal_state_changed().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default_state), &peak_display));
 147         peak_display.unset_flags (Gtk::CAN_FOCUS);
 148         peak_display.set_editable (false);
 149
 150         gain_automation_style_button.set_name ("mixer strip button");
 151         gain_automation_state_button.set_name ("mixer strip button");
 152
 153         set_tooltip (gain_automation_state_button, _("Fader automation mode"));
 154         set_tooltip (gain_automation_style_button, _("Fader automation type"));
 155
 156         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 157         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 158
 159         gain_automation_state_button.set_size_request(15, 15);
 160         gain_automation_style_button.set_size_request(15, 15);
 161
 162         gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 163         gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 164
 165         gain_astate_menu.set_name ("ArdourContextMenu");
 166         gain_astate_menu.set_reserve_toggle_size(false);
 167         gain_astyle_menu.set_name ("ArdourContextMenu");
 168
 169         meter_point_button.set_name ("mixer strip button");
 170
 171         set_tooltip (&meter_point_button, _("Metering point"));
 172
 173         meter_point_button.unset_flags (Gtk::CAN_FOCUS);
 174
 175         meter_point_button.set_size_request(15, 15);
 176
 177         meter_point_menu.set_name ("ArdourContextMenu");
 178         meter_point_menu.set_reserve_toggle_size(false);
 179
 180         meter_point_menu.items().clear ();
 181         meter_point_menu.items().push_back (MenuElem(_("Input"),
 182          sigc::bind (sigc::mem_fun (*this,
 183          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterInput)));
 184         meter_point_menu.items().push_back (MenuElem(_("Pre Fader"),
 185          sigc::bind (sigc::mem_fun (*this,
 186          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterPreFader)));
 187         meter_point_menu.items().push_back (MenuElem(_("Post Fader"),
 188          sigc::bind (sigc::mem_fun (*this,
 189          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterPostFader)));
 190         meter_point_menu.items().push_back (MenuElem(_("Output"),
 191          sigc::bind (sigc::mem_fun (*this,
 192          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterOutput)));
 193         meter_point_menu.items().push_back (MenuElem(_("Custom"),
 194          sigc::bind (sigc::mem_fun (*this,
 195          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterCustom)));
 196         meter_point_button.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeter::meter_press), false);
 197
 198         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::fader_moved));
 199         peak_display.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_press), false);
 200         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 201         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 202
 203         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 204         ResetRoutePeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_route_peak_display));
 205         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 206         RedrawMetrics.connect (sigc::mem_fun(*this, &GainMeterBase::redraw_metrics));
 207
 208         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 209         UIConfiguration::instance().ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 210         UIConfiguration::instance().DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 211 }
 212
 213 GainMeterBase::~GainMeterBase ()
 214 {
 215         delete meter_menu;
 216         delete level_meter;
 217 }
 218
 219 void
 220 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 221                              boost::shared_ptr<PeakMeter> pm,
 222                              boost::shared_ptr<Amp> amp,
 223                              boost::shared_ptr<GainControl> control)
 224 {
 225         connections.clear ();
 226         model_connections.drop_connections ();
 227
 228         /* no meter and no control? nothing to do ... */
 229
 230         if (!pm && !control) {
 231                 level_meter->set_meter (0);
 232                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 233                 _meter.reset ();
 234                 _amp.reset ();
 235                 _route.reset ();
 236                 _control.reset ();
 237                 return;
 238         }
 239
 240         _meter = pm;
 241         _amp = amp;
 242         _route = r;
 243         _control = control;
 244
 245         level_meter->set_meter (pm.get());
 246         gain_slider->set_controllable (_control);
 247
 248         if (amp) {
 249                 amp->ConfigurationChanged.connect (
 250                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 251                         );
 252         }
 253
 254         setup_gain_adjustment ();
 255
 256         if (!_route || !_route->is_auditioner()) {
 257
 258                 using namespace Menu_Helpers;
 259
 260                 gain_astate_menu.items().clear ();
 261
 262                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 263                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Off)));
 264                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 265                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Play)));
 266                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 267                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Write)));
 268                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 269                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Touch)));
 270
 271                 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
 272                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 273                 connections.push_back (ChangeGainAutomationState.connect (sigc::mem_fun(*this, &GainMeterBase::set_gain_astate)));
 274
 275                 _control->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 276                 _control->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
 277
 278                 gain_automation_state_changed ();
 279         }
 280
 281         _control->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 282
 283         gain_changed ();
 284         show_gain ();
 285         update_gain_sensitive ();
 286
 287         if (!_meter) {
 288                 peak_display.hide ();
 289         } else {
 290                 peak_display.show ();
 291         }
 292 }
 293
 294 void
 295 GainMeterBase::set_gain_astate (AutoState as)
 296 {
 297         if (gain_astate_propagate) {
 298                 gain_astate_propagate = false;
 299                 ChangeGainAutomationState (as);
 300                 return;
 301         }
 302         _amp->set_parameter_automation_state (Evoral::Parameter (GainAutomation), as);
 303 }
 304
 305 void
 306 GainMeterBase::setup_gain_adjustment ()
 307 {
 308         if (!_amp) {
 309                 return;
 310         }
 311
 312         if (_previous_amp_output_streams == _amp->output_streams ()) {
 313                 return;
 314         }
 315
 316         ignore_toggle = true;
 317
 318         if (_amp->output_streams().n_midi() <=  _amp->output_streams().n_audio()) {
 319                 _data_type = DataType::AUDIO;
 320                 gain_adjustment.set_lower (GAIN_COEFF_ZERO);
 321                 gain_adjustment.set_upper (GAIN_COEFF_UNITY);
 322                 gain_adjustment.set_step_increment (dB_coeff_step(Config->get_max_gain()) / 10.0);
 323                 gain_adjustment.set_page_increment (dB_coeff_step(Config->get_max_gain()));
 324                 gain_slider->set_default_value (gain_to_slider_position (GAIN_COEFF_UNITY));
 325         } else {
 326                 _data_type = DataType::MIDI;
 327                 gain_adjustment.set_lower (0.0);
 328                 gain_adjustment.set_upper (2.0);
 329                 gain_adjustment.set_step_increment (1.0/128.0);
 330                 gain_adjustment.set_page_increment (10.0/128.0);
 331                 gain_slider->set_default_value (1.0);
 332         }
 333
 334         ignore_toggle = false;
 335
 336         effective_gain_display ();
 337
 338         _previous_amp_output_streams = _amp->output_streams ();
 339 }
 340
 341 void
 342 GainMeterBase::hide_all_meters ()
 343 {
 344         level_meter->hide_meters();
 345 }
 346
 347 void
 348 GainMeter::hide_all_meters ()
 349 {
 350         GainMeterBase::hide_all_meters ();
 351 }
 352
 353 void
 354 GainMeterBase::setup_meters (int len)
 355 {
 356         int meter_width = 5;
 357         uint32_t meter_channels = 0;
 358         if (_meter) {
 359                 meter_channels = _meter->input_streams().n_total();
 360         } else if (_route) {
 361                 meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 362         }
 363
 364         switch (_width) {
 365                 case Wide:
 366                         //meter_ticks1_area.show();
 367                         //meter_ticks2_area.show();
 368                         meter_metric_area.show();
 369                         if (meter_channels == 1) {
 370                                 meter_width = 10;
 371                         }
 372                         break;
 373                 case Narrow:
 374                         if (meter_channels > 1) {
 375                                 meter_width = 4;
 376                         }
 377                         //meter_ticks1_area.hide();
 378                         //meter_ticks2_area.hide();
 379                         meter_metric_area.hide();
 380                         break;
 381         }
 382         level_meter->setup_meters(len, meter_width);
 383 }
 384
 385 void
 386 GainMeterBase::set_type (MeterType t)
 387 {
 388         level_meter->set_meter_type(t);
 389 }
 390
 391 void
 392 GainMeter::setup_meters (int len)
 393 {
 394         switch (_width) {
 395                 case Wide:
 396                         {
 397                                 uint32_t meter_channels = 0;
 398                                 if (_meter) {
 399                                         meter_channels = _meter->input_streams().n_total();
 400                                 } else if (_route) {
 401                                         meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 402                                 }
 403                                 hbox.set_homogeneous(meter_channels < 7 ? true : false);
 404                         }
 405                         break;
 406                 case Narrow:
 407                         hbox.set_homogeneous(false);
 408                         break;
 409         }
 410         GainMeterBase::setup_meters (len);
 411 }
 412
 413 void
 414 GainMeter::set_type (MeterType t)
 415 {
 416         GainMeterBase::set_type (t);
 417 }
 418
 419 bool
 420 GainMeterBase::gain_key_press (GdkEventKey* ev)
 421 {
 422         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 423                 /* drop through to normal handling */
 424                 return false;
 425         }
 426         /* illegal key for gain entry */
 427         return true;
 428 }
 429
 430 bool
 431 GainMeterBase::peak_button_press (GdkEventButton* ev)
 432 {
 433         return true;
 434 }
 435
 436 bool
 437 GainMeterBase::peak_button_release (GdkEventButton* ev)
 438 {
 439         /* reset peak label */
 440
 441         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 442                 ResetAllPeakDisplays ();
 443         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 444                 if (_route) {
 445                         ResetGroupPeakDisplays (_route->route_group());
 446                 }
 447         } else {
 448                 ResetRoutePeakDisplays (_route.get());
 449         }
 450
 451         return true;
 452 }
 453
 454 void
 455 GainMeterBase::reset_peak_display ()
 456 {
 457         if (!_route) {
 458                 // catch "reset all" for VCAs
 459                 return;
 460         }
 461         _meter->reset_max();
 462         level_meter->clear_meters();
 463         max_peak = minus_infinity ();
 464         peak_display.set_text (_("-inf"));
 465         peak_display.set_name ("MixerStripPeakDisplay");
 466 }
 467
 468 void
 469 GainMeterBase::reset_route_peak_display (Route* route)
 470 {
 471         if (_route && _route.get() == route) {
 472                 reset_peak_display ();
 473         }
 474 }
 475
 476 void
 477 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 478 {
 479         if (_route && group == _route->route_group()) {
 480                 reset_peak_display ();
 481         }
 482 }
 483
 484 void
 485 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 486 {
 487         using namespace Menu_Helpers;
 488
 489         if (meter_menu == 0) {
 490                 meter_menu = new Gtk::Menu;
 491                 MenuList& items = meter_menu->items();
 492
 493                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 494                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 495                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 496                 items.push_back (SeparatorElem());
 497                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 498                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 499                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 500         }
 501
 502         meter_menu->popup (ev->button, ev->time);
 503 }
 504
 505 bool
 506 GainMeterBase::gain_focused (GdkEventFocus* ev)
 507 {
 508         if (ev->in) {
 509                 gain_display.select_region (0, -1);
 510         } else {
 511                 gain_display.select_region (0, 0);
 512         }
 513         return false;
 514 }
 515
 516 void
 517 GainMeterBase::gain_activated ()
 518 {
 519         float f;
 520
 521         // Use the user's preferred locale/LC_NUMERIC setting
 522         if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 523                 return;
 524         }
 525
 526         /* clamp to displayable values */
 527         if (_data_type == DataType::AUDIO) {
 528                 f = min (f, 6.0f);
 529                 _control->set_value (dB_to_coefficient(f), Controllable::UseGroup);
 530         } else {
 531                 f = min (fabs (f), 2.0f);
 532                 _control->set_value (f, Controllable::UseGroup);
 533         }
 534
 535         if (gain_display.has_focus()) {
 536                 Gtk::Widget* w = gain_display.get_toplevel();
 537                 if (w) {
 538                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 539
 540                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 541
 542                         if (win) {
 543                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 544                                 if (f) {
 545                                         gtk_widget_grab_focus (f);
 546                                         return;
 547                                 }
 548                         }
 549                 }
 550         }
 551 }
 552
 553 void
 554 GainMeterBase::show_gain ()
 555 {
 556         char buf[32];
 557
 558         float v = gain_adjustment.get_value();
 559
 560         switch (_data_type) {
 561         case DataType::AUDIO:
 562                 if (v == 0.0) {
 563                         strcpy (buf, _("-inf"));
 564                 } else {
 565                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 566                 }
 567                 break;
 568         case DataType::MIDI:
 569                 snprintf (buf, sizeof (buf), "%.1f", v);
 570                 break;
 571         }
 572
 573         gain_display.set_text (buf);
 574 }
 575
 576 void
 577 GainMeterBase::fader_moved ()
 578 {
 579         if (!ignore_toggle) {
 580
 581                 gain_t value;
 582
 583                 /* convert from adjustment range (0..1) to gain coefficient */
 584
 585                 if (_data_type == DataType::AUDIO) {
 586                         value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 587                 } else {
 588                         value = gain_adjustment.get_value();
 589                 }
 590
 591                 // XXX hack allow to override group
 592                 // (this breaks group'ed  shift+click reset)
 593                 if (Keyboard::the_keyboard().key_is_down (GDK_Shift_R)
 594                                 || Keyboard::the_keyboard().key_is_down (GDK_Shift_L)) {
 595                         _control->set_value (value, Controllable::InverseGroup);
 596                 } else {
 597                         _control->set_value (value, Controllable::UseGroup);
 598                 }
 599         }
 600
 601         show_gain ();
 602 }
 603
 604 void
 605 GainMeterBase::effective_gain_display ()
 606 {
 607         gain_t fader_position = 0;
 608
 609         switch (_data_type) {
 610         case DataType::AUDIO:
 611                 /* the position of the fader should reflect any master gain,
 612                  * not just the control's own inherent value
 613                  */
 614                 fader_position = gain_to_slider_position_with_max (_control->get_value(), Config->get_max_gain());
 615                 break;
 616         case DataType::MIDI:
 617                 fader_position = _control->get_value ();
 618                 break;
 619         }
 620
 621         if (gain_adjustment.get_value() != fader_position) {
 622                 ignore_toggle = true;
 623                 gain_adjustment.set_value (fader_position);
 624                 ignore_toggle = false;
 625         }
 626 }
 627
 628 void
 629 GainMeterBase::gain_changed ()
 630 {
 631         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 632 }
 633
 634 void
 635 GainMeterBase::set_meter_strip_name (const char * name)
 636 {
 637         char tmp[256];
 638         meter_metric_area.set_name (name);
 639         sprintf(tmp, "Mark%sLeft", name);
 640         meter_ticks1_area.set_name (tmp);
 641         sprintf(tmp, "Mark%sRight", name);
 642         meter_ticks2_area.set_name (tmp);
 643 }
 644
 645 void
 646 GainMeterBase::set_fader_name (const char * name)
 647 {
 648         gain_slider->set_name (name);
 649 }
 650
 651 void
 652 GainMeterBase::update_gain_sensitive ()
 653 {
 654         bool x = !(_control->alist()->automation_state() & Play);
 655         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 656 }
 657
 658 gint
 659 GainMeterBase::meter_press(GdkEventButton* ev)
 660 {
 661         if (!_route) {
 662                 return false;
 663         }
 664         if (!ignore_toggle) {
 665                 switch (ev->button) {
 666                         case 1:
 667                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 668
 669                                         /* Primary+Tertiary-click applies change to all routes */
 670
 671                                         meter_point_change_target = MeterPointChangeAll;
 672
 673                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 674
 675                                         /* Primary-click: apply change to all routes in group */
 676
 677                                         meter_point_change_target = MeterPointChangeGroup;
 678
 679                                 } else {
 680
 681                                         /* click: change just this route */
 682
 683                                         meter_point_change_target = MeterPointChangeSingle;
 684                                 }
 685                                 Gtkmm2ext::anchored_menu_popup(&meter_point_menu,
 686                                                              &meter_point_button,
 687                                                            "", 1, ev->time);
 688                                 break;
 689                         default:
 690                                 break;
 691                 }
 692         }
 693         return true;
 694 }
 695
 696 void
 697 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 698 {
 699         route.set_meter_point (mp);
 700 }
 701
 702 void
 703 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 704 {
 705         RouteGroup* route_group;
 706
 707         if ((route_group = route.route_group ()) != 0) {
 708                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 709         } else {
 710                 route.set_meter_point (mp);
 711         }
 712 }
 713
 714 void
 715 GainMeterBase::meter_point_clicked (MeterPoint mp)
 716 {
 717         if (_route) {
 718                 switch (meter_point_change_target) {
 719                         case MeterPointChangeAll:
 720                                 _session->foreach_route (this, &GainMeterBase::set_meter_point, mp);
 721                                 break;
 722                         case MeterPointChangeGroup:
 723                                 set_route_group_meter_point (*_route, mp);
 724                                 break;
 725                         case MeterPointChangeSingle:
 726                                 _route->set_meter_point (mp);
 727                                 break;
 728                 }
 729         }
 730 }
 731
 732 void
 733 GainMeterBase::amp_start_touch ()
 734 {
 735         _control->start_touch (_control->session().transport_frame());
 736 }
 737
 738 void
 739 GainMeterBase::amp_stop_touch ()
 740 {
 741         _control->stop_touch (false, _control->session().transport_frame());
 742         effective_gain_display ();
 743 }
 744
 745 gint
 746 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 747 {
 748         if (ev->type == GDK_BUTTON_RELEASE) {
 749                 return TRUE;
 750         }
 751
 752         switch (ev->button) {
 753                 case 1:
 754                         gain_astate_propagate = Keyboard::modifier_state_contains (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier | Keyboard::TertiaryModifier));
 755                         Gtkmm2ext::anchored_menu_popup(&gain_astate_menu,
 756                                                        &gain_automation_state_button,
 757                                                        "", 1, ev->time);
 758                         break;
 759                 default:
 760                         break;
 761         }
 762
 763         return TRUE;
 764 }
 765
 766 gint
 767 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 768 {
 769         if (ev->type == GDK_BUTTON_RELEASE) {
 770                 return TRUE;
 771         }
 772
 773         switch (ev->button) {
 774         case 1:
 775                 gain_astyle_menu.popup (1, ev->time);
 776                 break;
 777         default:
 778                 break;
 779         }
 780         return TRUE;
 781 }
 782
 783 string
 784 GainMeterBase::astate_string (AutoState state)
 785 {
 786         return _astate_string (state, false);
 787 }
 788
 789 string
 790 GainMeterBase::short_astate_string (AutoState state)
 791 {
 792         return _astate_string (state, true);
 793 }
 794
 795 string
 796 GainMeterBase::_astate_string (AutoState state, bool shrt)
 797 {
 798         string sstr;
 799
 800         switch (state) {
 801         case ARDOUR::Off:
 802                 sstr = (shrt ? "M" : _("M"));
 803                 break;
 804         case Play:
 805                 sstr = (shrt ? "P" : _("P"));
 806                 break;
 807         case Touch:
 808                 sstr = (shrt ? "T" : _("T"));
 809                 break;
 810         case Write:
 811                 sstr = (shrt ? "W" : _("W"));
 812                 break;
 813         }
 814
 815         return sstr;
 816 }
 817
 818 string
 819 GainMeterBase::astyle_string (AutoStyle style)
 820 {
 821         return _astyle_string (style, false);
 822 }
 823
 824 string
 825 GainMeterBase::short_astyle_string (AutoStyle style)
 826 {
 827         return _astyle_string (style, true);
 828 }
 829
 830 string
 831 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 832 {
 833         if (style & Trim) {
 834                 return _("Trim");
 835         } else {
 836                 /* XXX it might different in different languages */
 837
 838                 return (shrt ? _("Abs") : _("Abs"));
 839         }
 840 }
 841
 842 void
 843 GainMeterBase::gain_automation_style_changed ()
 844 {
 845         switch (_width) {
 846         case Wide:
 847                 gain_automation_style_button.set_text (astyle_string(_control->alist()->automation_style()));
 848                 break;
 849         case Narrow:
 850                 gain_automation_style_button.set_text  (short_astyle_string(_control->alist()->automation_style()));
 851                 break;
 852         }
 853 }
 854
 855 void
 856 GainMeterBase::gain_automation_state_changed ()
 857 {
 858         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed);
 859
 860         switch (_width) {
 861         case Wide:
 862                 gain_automation_state_button.set_text (astate_string(_control->alist()->automation_state()));
 863                 break;
 864         case Narrow:
 865                 gain_automation_state_button.set_text (short_astate_string(_control->alist()->automation_state()));
 866                 break;
 867         }
 868
 869         const bool automation_watch_required = (_control->alist()->automation_state() != ARDOUR::Off);
 870
 871         if (gain_automation_state_button.get_active() != automation_watch_required) {
 872                 ignore_toggle = true;
 873                 gain_automation_state_button.set_active (automation_watch_required);
 874                 ignore_toggle = false;
 875         }
 876
 877         update_gain_sensitive ();
 878
 879         gain_watching.disconnect();
 880
 881         if (automation_watch_required) {
 882                 /* start watching automation so that things move */
 883                 gain_watching = Timers::rapid_connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 884         } else {
 885                 /* update once to get the correct value shown as we re-enter off/manual mode */
 886                 effective_gain_display();
 887         }
 888 }
 889
 890 const ChanCount
 891 GainMeterBase::meter_channels() const
 892 {
 893                 if (_meter) { return _meter->input_streams(); }
 894                 else { return ChanCount(); }
 895 }
 896 void
 897 GainMeterBase::update_meters()
 898 {
 899         char buf[32];
 900         float mpeak = level_meter->update_meters();
 901
 902         if (mpeak > max_peak) {
 903                 max_peak = mpeak;
 904                 if (mpeak <= -200.0f) {
 905                         peak_display.set_text (_("-inf"));
 906                 } else {
 907                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 908                         peak_display.set_text (buf);
 909                 }
 910         }
 911         if (mpeak >= UIConfiguration::instance().get_meter_peak()) {
 912                 peak_display.set_name ("MixerStripPeakDisplayPeak");
 913         }
 914 }
 915
 916 void GainMeterBase::color_handler(bool /*dpi*/)
 917 {
 918         setup_meters();
 919 }
 920
 921 void
 922 GainMeterBase::set_width (Width w, int len)
 923 {
 924         _width = w;
 925         int meter_width = 5;
 926         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 927                 meter_width = 10;
 928         }
 929         level_meter->setup_meters(len, meter_width);
 930 }
 931
 932
 933 void
 934 GainMeterBase::on_theme_changed()
 935 {
 936 }
 937
 938 void
 939 GainMeterBase::redraw_metrics()
 940 {
 941         meter_metric_area.queue_draw ();
 942         meter_ticks1_area.queue_draw ();
 943         meter_ticks2_area.queue_draw ();
 944 }
 945
 946 #define PX_SCALE(pxmin, dflt) rint(std::max((double)pxmin, (double)dflt * UIConfiguration::instance().get_ui_scale()))
 947
 948 GainMeter::GainMeter (Session* s, int fader_length)
 949         : GainMeterBase (s, false, fader_length, 24)
 950         , gain_display_box(true, 0)
 951         , hbox(true, 2)
 952 {
 953         if (gain_display.get_parent()) {
 954                 gain_display.get_parent()->remove (gain_display);
 955         }
 956         gain_display_box.pack_start (gain_display, true, true);
 957
 958         if (peak_display.get_parent()) {
 959                 peak_display.get_parent()->remove (gain_display);
 960         }
 961         gain_display_box.pack_start (peak_display, true, true);
 962
 963         meter_metric_area.set_name ("AudioTrackMetrics");
 964         meter_metric_area.set_size_request(PX_SCALE(24, 24), -1);
 965
 966         gain_automation_style_button.set_name ("mixer strip button");
 967         gain_automation_state_button.set_name ("mixer strip button");
 968
 969         set_tooltip (gain_automation_state_button, _("Fader automation mode"));
 970         set_tooltip (gain_automation_style_button, _("Fader automation type"));
 971
 972         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 973         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 974
 975         gain_automation_state_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 976         gain_automation_style_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 977
 978         fader_vbox.set_spacing (0);
 979         fader_vbox.pack_start (*gain_slider, true, true);
 980
 981         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 982         fader_alignment.add (fader_vbox);
 983
 984         hbox.pack_start (fader_alignment, true, true);
 985
 986         set_spacing (PX_SCALE(2, 2));
 987
 988         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 989         pack_start (hbox, true, true);
 990
 991         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 992         meter_alignment.add (*level_meter);
 993
 994         meter_metric_area.signal_expose_event().connect (
 995                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 996
 997         meter_ticks1_area.set_size_request (PX_SCALE(3, 3), -1);
 998         meter_ticks2_area.set_size_request (PX_SCALE(3, 3), -1);
 999
1000         meter_ticks1_area.signal_expose_event().connect (
1001                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
1002         meter_ticks2_area.signal_expose_event().connect (
1003                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
1004
1005         meter_hbox.pack_start (meter_ticks1_area, false, false);
1006         meter_hbox.pack_start (meter_alignment, false, false);
1007         meter_hbox.pack_start (meter_ticks2_area, false, false);
1008         meter_hbox.pack_start (meter_metric_area, false, false);
1009 }
1010 #undef PX_SCALE
1011
1012 GainMeter::~GainMeter () { }
1013
1014 void
1015 GainMeter::set_controls (boost::shared_ptr<Route> r,
1016                          boost::shared_ptr<PeakMeter> meter,
1017                          boost::shared_ptr<Amp> amp,
1018                          boost::shared_ptr<GainControl> control)
1019 {
1020         if (meter_hbox.get_parent()) {
1021                 hbox.remove (meter_hbox);
1022         }
1023
1024 //      if (gain_automation_state_button.get_parent()) {
1025 //              fader_vbox->remove (gain_automation_state_button);
1026 //      }
1027
1028         GainMeterBase::set_controls (r, meter, amp, control);
1029
1030         if (_meter) {
1031                 _meter->ConfigurationChanged.connect (
1032                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
1033                         );
1034                 _meter->TypeChanged.connect (
1035                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_type_changed, this, _1), gui_context()
1036                         );
1037
1038                 meter_configuration_changed (_meter->input_streams ());
1039         }
1040
1041
1042         if (_route) {
1043                 _route->active_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::route_active_changed, this), gui_context ());
1044                 hbox.pack_start (meter_hbox, true, true);
1045                 meter_hbox.show ();
1046         }
1047
1048 //      if (r && !r->is_auditioner()) {
1049 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
1050 //      }
1051
1052         gain_display_box.show ();
1053         gain_display.show ();
1054         gain_slider->show ();
1055         fader_vbox.show ();
1056         fader_alignment.show ();
1057         hbox.show ();
1058         setup_meters ();
1059 }
1060
1061 int
1062 GainMeter::get_gm_width ()
1063 {
1064         Gtk::Requisition sz;
1065         int min_w = 0;
1066         sz.width = 0;
1067         meter_metric_area.size_request (sz);
1068         min_w += sz.width;
1069         level_meter->size_request (sz);
1070         min_w += sz.width;
1071
1072         fader_alignment.size_request (sz);
1073         if (_width == Wide)
1074                 return max(sz.width * 2, min_w * 2) + 6;
1075         else
1076                 return sz.width + min_w + 6;
1077
1078 }
1079
1080 gint
1081 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1082 {
1083         if (!_route) {
1084                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1085                 return meter_expose_metrics(ev, MeterPeak, _types, &meter_metric_area);
1086         }
1087         return meter_expose_metrics(ev, _route->meter_type(), _types, &meter_metric_area);
1088 }
1089
1090 gint
1091 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
1092 {
1093         if (!_route) {
1094                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1095                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks1_area);
1096         }
1097         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks1_area);
1098 }
1099
1100 gint
1101 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1102 {
1103         if (!_route) {
1104                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1105                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks2_area);
1106         }
1107         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks2_area);
1108 }
1109
1110 void
1111 GainMeter::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
1112 {
1113         gain_display.queue_draw();
1114         peak_display.queue_draw();
1115 }
1116
1117 boost::shared_ptr<PBD::Controllable>
1118 GainMeterBase::get_controllable()
1119 {
1120         if (_amp) {
1121                 return _control;
1122         } else {
1123                 return boost::shared_ptr<PBD::Controllable>();
1124         }
1125 }
1126
1127 bool
1128 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1129 {
1130         return static_cast<bool>(LevelMeterButtonPress (ev)); /* EMIT SIGNAL */
1131 }
1132
1133 void
1134 GainMeter::meter_configuration_changed (ChanCount c)
1135 {
1136         int type = 0;
1137         _types.clear ();
1138
1139         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1140                 if (c.get (*i) > 0) {
1141                         _types.push_back (*i);
1142                         type |= 1 << (*i);
1143                 }
1144         }
1145
1146         if (_route
1147                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1148                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1149                         ) {
1150                 if (_route->active()) {
1151                         set_meter_strip_name ("AudioBusMetrics");
1152                 } else {
1153                         set_meter_strip_name ("AudioBusMetricsInactive");
1154                 }
1155         }
1156         else if (
1157                            (type == (1 << DataType::MIDI))
1158                         || (_route && boost::dynamic_pointer_cast<MidiTrack>(_route))
1159                         ) {
1160                 if (!_route || _route->active()) {
1161                         set_meter_strip_name ("MidiTrackMetrics");
1162                 } else {
1163                         set_meter_strip_name ("MidiTrackMetricsInactive");
1164                 }
1165         }
1166         else if (type == (1 << DataType::AUDIO)) {
1167                 if (!_route || _route->active()) {
1168                         set_meter_strip_name ("AudioTrackMetrics");
1169                 } else {
1170                         set_meter_strip_name ("AudioTrackMetricsInactive");
1171                 }
1172         } else {
1173                 if (!_route || _route->active()) {
1174                         set_meter_strip_name ("AudioMidiTrackMetrics");
1175                 } else {
1176                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1177                 }
1178         }
1179
1180         setup_meters();
1181         meter_clear_pattern_cache(4);
1182         on_style_changed(Glib::RefPtr<Gtk::Style>());
1183 }
1184
1185 void
1186 GainMeter::route_active_changed ()
1187 {
1188         if (_meter) {
1189                 meter_configuration_changed (_meter->input_streams ());
1190         }
1191 }
1192
1193 void
1194 GainMeter::meter_type_changed (MeterType t)
1195 {
1196         _route->set_meter_type(t);
1197         RedrawMetrics();
1198 }