gtk2_ardour/gain_meter.cc

   1 /*
   2   Copyright (C) 2002 Paul Davis
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program; if not, write to the Free Software
  16   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <limits.h>
  21
  22 #include "ardour/amp.h"
  23 #include "ardour/logmeter.h"
  24 #include "ardour/route_group.h"
  25 #include "ardour/session_route.h"
  26 #include "ardour/dB.h"
  27 #include "ardour/utils.h"
  28
  29 #include <pangomm.h>
  30
  31 #include "gtkmm/style.h"
  32 #include "gdkmm/color.h"
  33 #include "gtkmm2ext/utils.h"
  34 #include "gtkmm2ext/fastmeter.h"
  35 #include "gtkmm2ext/gtk_ui.h"
  36
  37 #include "widgets/tooltips.h"
  38
  39 #include "pbd/fastlog.h"
  40 #include "pbd/stacktrace.h"
  41
  42 #include "gain_meter.h"
  43 #include "gui_thread.h"
  44 #include "keyboard.h"
  45 #include "public_editor.h"
  46 #include "utils.h"
  47 #include "meter_patterns.h"
  48 #include "timers.h"
  49 #include "ui_config.h"
  50
  51 #include "ardour/session.h"
  52 #include "ardour/route.h"
  53 #include "ardour/meter.h"
  54 #include "ardour/audio_track.h"
  55 #include "ardour/midi_track.h"
  56 #include "ardour/dB.h"
  57
  58 #include "pbd/i18n.h"
  59
  60 using namespace ARDOUR;
  61 using namespace ArdourWidgets;
  62 using namespace PBD;
  63 using namespace Gtkmm2ext;
  64 using namespace Gtk;
  65 using namespace std;
  66 using Gtkmm2ext::Keyboard;
  67 using namespace ArdourMeter;
  68
  69 static void
  70 reset_cursor_to_default (Gtk::Entry* widget)
  71 {
  72         Glib::RefPtr<Gdk::Window> win = widget->get_text_window ();
  73         if (win) {
  74                 /* C++ doesn't provide a pointer argument version of this
  75                    (i.e. you cannot set to NULL to get the default/parent
  76                    cursor)
  77                 */
  78                 gdk_window_set_cursor (win->gobj(), 0);
  79         }
  80 }
  81
  82 static void
  83 reset_cursor_to_default_state (Gtk::StateType, Gtk::Entry* widget)
  84 {
  85         reset_cursor_to_default (widget);
  86 }
  87
  88 sigc::signal<void, ARDOUR::AutoState> GainMeterBase::ChangeGainAutomationState;
  89
  90 GainMeterBase::GainMeterBase (Session* s, bool horizontal, int fader_length, int fader_girth)
  91         : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()),  // value
  92                            0.0,  // lower
  93                            1.0,  // upper
  94                            dB_coeff_step(Config->get_max_gain()) / 10.0,  // step increment
  95                            dB_coeff_step(Config->get_max_gain()))  // page increment
  96         , gain_automation_state_button ("")
  97         , meter_point_button (_("pre"))
  98         , gain_astate_propagate (false)
  99         , _data_type (DataType::AUDIO)
 100 {
 101         using namespace Menu_Helpers;
 102
 103         set_session (s);
 104
 105         ignore_toggle = false;
 106         meter_menu = 0;
 107         next_release_selects = false;
 108         _width = Wide;
 109
 110         fader_length = rint (fader_length * UIConfiguration::instance().get_ui_scale());
 111         fader_girth = rint (fader_girth * UIConfiguration::instance().get_ui_scale());
 112
 113         if (horizontal) {
 114                 gain_slider = manage (new HSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 115         } else {
 116                 gain_slider = manage (new VSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 117         }
 118
 119         level_meter = new LevelMeterHBox(_session);
 120
 121         level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
 122         meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
 123         meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
 124
 125         gain_slider->set_tweaks (PixFader::Tweaks(PixFader::NoButtonForward | PixFader::NoVerticalScroll));
 126         gain_slider->StartGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_start_touch));
 127         gain_slider->StopGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_stop_touch));
 128         gain_slider->set_name ("GainFader");
 129
 130         gain_display.set_name ("MixerStripGainDisplay");
 131         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 132         gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
 133         gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 134         gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 135         gain_display.set_alignment (0.5);
 136
 137         peak_display.set_name ("MixerStripPeakDisplay");
 138         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 139         max_peak = minus_infinity();
 140         peak_display.set_text (_("-inf"));
 141         peak_display.set_alignment (0.5);
 142
 143         /* stuff related to the fact that the peak display is not, in
 144            fact, supposed to be a text entry.
 145         */
 146         peak_display.set_events (peak_display.get_events() & ~(Gdk::EventMask (Gdk::LEAVE_NOTIFY_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::POINTER_MOTION_MASK)));
 147         peak_display.signal_map().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default), &peak_display));
 148         peak_display.signal_state_changed().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default_state), &peak_display));
 149         peak_display.unset_flags (Gtk::CAN_FOCUS);
 150         peak_display.set_editable (false);
 151
 152         gain_automation_state_button.set_name ("mixer strip button");
 153
 154         set_tooltip (gain_automation_state_button, _("Fader automation mode"));
 155
 156         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 157
 158         gain_automation_state_button.set_size_request(15, 15);
 159
 160         gain_astate_menu.set_name ("ArdourContextMenu");
 161         gain_astate_menu.set_reserve_toggle_size(false);
 162
 163         meter_point_button.set_name ("mixer strip button");
 164
 165         set_tooltip (&meter_point_button, _("Metering point"));
 166
 167         meter_point_button.unset_flags (Gtk::CAN_FOCUS);
 168
 169         meter_point_button.set_size_request(15, 15);
 170
 171         meter_point_menu.set_name ("ArdourContextMenu");
 172         meter_point_menu.set_reserve_toggle_size(false);
 173
 174         meter_point_menu.items().clear ();
 175         meter_point_menu.items().push_back (MenuElem(_("Input"),
 176          sigc::bind (sigc::mem_fun (*this,
 177          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterInput)));
 178         meter_point_menu.items().push_back (MenuElem(_("Pre Fader"),
 179          sigc::bind (sigc::mem_fun (*this,
 180          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterPreFader)));
 181         meter_point_menu.items().push_back (MenuElem(_("Post Fader"),
 182          sigc::bind (sigc::mem_fun (*this,
 183          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterPostFader)));
 184         meter_point_menu.items().push_back (MenuElem(_("Output"),
 185          sigc::bind (sigc::mem_fun (*this,
 186          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterOutput)));
 187         meter_point_menu.items().push_back (MenuElem(_("Custom"),
 188          sigc::bind (sigc::mem_fun (*this,
 189          &GainMeterBase::meter_point_clicked), (MeterPoint) MeterCustom)));
 190         meter_point_button.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeter::meter_press), false);
 191
 192         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::fader_moved));
 193         peak_display.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_press), false);
 194         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 195         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 196
 197         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 198         ResetRoutePeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_route_peak_display));
 199         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 200         RedrawMetrics.connect (sigc::mem_fun(*this, &GainMeterBase::redraw_metrics));
 201
 202         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 203         UIConfiguration::instance().ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 204         UIConfiguration::instance().DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 205 }
 206
 207 GainMeterBase::~GainMeterBase ()
 208 {
 209         delete meter_menu;
 210         delete level_meter;
 211 }
 212
 213 void
 214 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 215                              boost::shared_ptr<PeakMeter> pm,
 216                              boost::shared_ptr<Amp> amp,
 217                              boost::shared_ptr<GainControl> control)
 218 {
 219         connections.clear ();
 220         model_connections.drop_connections ();
 221
 222         /* no meter and no control? nothing to do ... */
 223
 224         if (!pm && !control) {
 225                 level_meter->set_meter (0);
 226                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 227                 _meter.reset ();
 228                 _amp.reset ();
 229                 _route.reset ();
 230                 _control.reset ();
 231                 return;
 232         }
 233
 234         _meter = pm;
 235         _amp = amp;
 236         _route = r;
 237         _control = control;
 238
 239         level_meter->set_meter (pm.get());
 240         gain_slider->set_controllable (_control);
 241
 242         if (amp) {
 243                 amp->ConfigurationChanged.connect (
 244                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 245                         );
 246         }
 247
 248         setup_gain_adjustment ();
 249
 250         if (!_route || !_route->is_auditioner()) {
 251
 252                 using namespace Menu_Helpers;
 253
 254                 gain_astate_menu.items().clear ();
 255
 256                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 257                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Off)));
 258                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 259                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Play)));
 260                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 261                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Write)));
 262                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 263                                                               sigc::bind (sigc::mem_fun (*this, &GainMeterBase::set_gain_astate), (AutoState) ARDOUR::Touch)));
 264
 265                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 266                 connections.push_back (ChangeGainAutomationState.connect (sigc::mem_fun(*this, &GainMeterBase::set_gain_astate)));
 267
 268                 _control->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 269
 270                 gain_automation_state_changed ();
 271         }
 272
 273         _control->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 274
 275         gain_changed ();
 276         show_gain ();
 277         update_gain_sensitive ();
 278
 279         if (!_meter) {
 280                 peak_display.hide ();
 281         } else {
 282                 peak_display.show ();
 283         }
 284 }
 285
 286 void
 287 GainMeterBase::set_gain_astate (AutoState as)
 288 {
 289         if (gain_astate_propagate) {
 290                 gain_astate_propagate = false;
 291                 ChangeGainAutomationState (as);
 292                 return;
 293         }
 294         _amp->set_parameter_automation_state (Evoral::Parameter (GainAutomation), as);
 295 }
 296
 297 void
 298 GainMeterBase::setup_gain_adjustment ()
 299 {
 300         if (!_amp) {
 301                 return;
 302         }
 303
 304         if (_previous_amp_output_streams == _amp->output_streams ()) {
 305                 return;
 306         }
 307
 308         ignore_toggle = true;
 309
 310         if (_amp->output_streams().n_midi() <=  _amp->output_streams().n_audio()) {
 311                 _data_type = DataType::AUDIO;
 312                 gain_adjustment.set_lower (GAIN_COEFF_ZERO);
 313                 gain_adjustment.set_upper (GAIN_COEFF_UNITY);
 314                 gain_adjustment.set_step_increment (dB_coeff_step(Config->get_max_gain()) / 10.0);
 315                 gain_adjustment.set_page_increment (dB_coeff_step(Config->get_max_gain()));
 316                 gain_slider->set_default_value (gain_to_slider_position_with_max (GAIN_COEFF_UNITY, Config->get_max_gain()));
 317         } else {
 318                 _data_type = DataType::MIDI;
 319                 gain_adjustment.set_lower (0.0);
 320                 gain_adjustment.set_upper (2.0);
 321                 gain_adjustment.set_step_increment (1.0/128.0);
 322                 gain_adjustment.set_page_increment (10.0/128.0);
 323                 gain_slider->set_default_value (1.0);
 324         }
 325
 326         ignore_toggle = false;
 327
 328         effective_gain_display ();
 329
 330         _previous_amp_output_streams = _amp->output_streams ();
 331 }
 332
 333 void
 334 GainMeterBase::hide_all_meters ()
 335 {
 336         level_meter->hide_meters();
 337 }
 338
 339 void
 340 GainMeter::hide_all_meters ()
 341 {
 342         GainMeterBase::hide_all_meters ();
 343 }
 344
 345 void
 346 GainMeterBase::setup_meters (int len)
 347 {
 348         int meter_width = 5;
 349         uint32_t meter_channels = 0;
 350         if (_meter) {
 351                 meter_channels = _meter->input_streams().n_total();
 352         } else if (_route) {
 353                 meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 354         }
 355
 356         switch (_width) {
 357                 case Wide:
 358                         //meter_ticks1_area.show();
 359                         //meter_ticks2_area.show();
 360                         meter_metric_area.show();
 361                         if (meter_channels == 1) {
 362                                 meter_width = 10;
 363                         }
 364                         break;
 365                 case Narrow:
 366                         if (meter_channels > 1) {
 367                                 meter_width = 4;
 368                         }
 369                         //meter_ticks1_area.hide();
 370                         //meter_ticks2_area.hide();
 371                         meter_metric_area.hide();
 372                         break;
 373         }
 374         level_meter->setup_meters(len, meter_width);
 375 }
 376
 377 void
 378 GainMeterBase::set_type (MeterType t)
 379 {
 380         level_meter->set_meter_type(t);
 381 }
 382
 383 void
 384 GainMeter::setup_meters (int len)
 385 {
 386         switch (_width) {
 387                 case Wide:
 388                         {
 389                                 uint32_t meter_channels = 0;
 390                                 if (_meter) {
 391                                         meter_channels = _meter->input_streams().n_total();
 392                                 } else if (_route) {
 393                                         meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 394                                 }
 395                                 hbox.set_homogeneous(meter_channels < 7 ? true : false);
 396                         }
 397                         break;
 398                 case Narrow:
 399                         hbox.set_homogeneous(false);
 400                         break;
 401         }
 402         GainMeterBase::setup_meters (len);
 403 }
 404
 405 void
 406 GainMeter::set_type (MeterType t)
 407 {
 408         GainMeterBase::set_type (t);
 409 }
 410
 411 bool
 412 GainMeterBase::gain_key_press (GdkEventKey* ev)
 413 {
 414         if (ARDOUR_UI_UTILS::key_is_legal_for_numeric_entry (ev->keyval)) {
 415                 /* drop through to normal handling */
 416                 return false;
 417         }
 418         /* illegal key for gain entry */
 419         return true;
 420 }
 421
 422 bool
 423 GainMeterBase::peak_button_press (GdkEventButton* ev)
 424 {
 425         return true;
 426 }
 427
 428 bool
 429 GainMeterBase::peak_button_release (GdkEventButton* ev)
 430 {
 431         /* reset peak label */
 432
 433         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 434                 ResetAllPeakDisplays ();
 435         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 436                 if (_route) {
 437                         ResetGroupPeakDisplays (_route->route_group());
 438                 }
 439         } else {
 440                 ResetRoutePeakDisplays (_route.get());
 441         }
 442
 443         return true;
 444 }
 445
 446 void
 447 GainMeterBase::reset_peak_display ()
 448 {
 449         if (!_route) {
 450                 // catch "reset all" for VCAs
 451                 return;
 452         }
 453         _meter->reset_max();
 454         level_meter->clear_meters();
 455         max_peak = minus_infinity ();
 456         peak_display.set_text (_("-inf"));
 457         peak_display.set_name ("MixerStripPeakDisplay");
 458 }
 459
 460 void
 461 GainMeterBase::reset_route_peak_display (Route* route)
 462 {
 463         if (_route && _route.get() == route) {
 464                 reset_peak_display ();
 465         }
 466 }
 467
 468 void
 469 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 470 {
 471         if (_route && group == _route->route_group()) {
 472                 reset_peak_display ();
 473         }
 474 }
 475
 476 void
 477 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 478 {
 479         using namespace Menu_Helpers;
 480
 481         if (meter_menu == 0) {
 482                 meter_menu = new Gtk::Menu;
 483                 MenuList& items = meter_menu->items();
 484
 485                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 486                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 487                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 488                 items.push_back (SeparatorElem());
 489                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 490                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 491                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 492         }
 493
 494         meter_menu->popup (1, ev->time);
 495 }
 496
 497 bool
 498 GainMeterBase::gain_focused (GdkEventFocus* ev)
 499 {
 500         if (ev->in) {
 501                 gain_display.select_region (0, -1);
 502         } else {
 503                 gain_display.select_region (0, 0);
 504         }
 505         return false;
 506 }
 507
 508 void
 509 GainMeterBase::gain_activated ()
 510 {
 511         float f;
 512
 513         // Use the user's preferred locale/LC_NUMERIC setting
 514         if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 515                 return;
 516         }
 517
 518         /* clamp to displayable values */
 519         if (_data_type == DataType::AUDIO) {
 520                 f = min (f, 6.0f);
 521                 _control->set_value (dB_to_coefficient(f), Controllable::UseGroup);
 522         } else {
 523                 f = min (fabs (f), 2.0f);
 524                 _control->set_value (f, Controllable::UseGroup);
 525         }
 526
 527         if (gain_display.has_focus()) {
 528                 Gtk::Widget* w = gain_display.get_toplevel();
 529                 if (w) {
 530                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 531
 532                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 533
 534                         if (win) {
 535                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 536                                 if (f) {
 537                                         gtk_widget_grab_focus (f);
 538                                         return;
 539                                 }
 540                         }
 541                 }
 542         }
 543 }
 544
 545 void
 546 GainMeterBase::show_gain ()
 547 {
 548         char buf[32];
 549
 550         float v = gain_adjustment.get_value();
 551
 552         switch (_data_type) {
 553         case DataType::AUDIO:
 554                 if (v == 0.0) {
 555                         strcpy (buf, _("-inf"));
 556                 } else {
 557                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 558                 }
 559                 break;
 560         case DataType::MIDI:
 561                 snprintf (buf, sizeof (buf), "%.1f", v);
 562                 break;
 563         }
 564
 565         gain_display.set_text (buf);
 566 }
 567
 568 void
 569 GainMeterBase::fader_moved ()
 570 {
 571         if (!ignore_toggle) {
 572
 573                 gain_t value;
 574
 575                 /* convert from adjustment range (0..1) to gain coefficient */
 576
 577                 if (_data_type == DataType::AUDIO) {
 578                         value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 579                 } else {
 580                         value = gain_adjustment.get_value();
 581                 }
 582
 583                 // XXX hack allow to override group
 584                 // (this breaks group'ed  shift+click reset)
 585                 if (Keyboard::the_keyboard().key_is_down (GDK_Shift_R)
 586                                 || Keyboard::the_keyboard().key_is_down (GDK_Shift_L)) {
 587                         _control->set_value (value, Controllable::InverseGroup);
 588                 } else {
 589                         _control->set_value (value, Controllable::UseGroup);
 590                 }
 591         }
 592
 593         show_gain ();
 594 }
 595
 596 void
 597 GainMeterBase::effective_gain_display ()
 598 {
 599         gain_t fader_position = 0;
 600
 601         switch (_data_type) {
 602         case DataType::AUDIO:
 603                 /* the position of the fader should reflect any master gain,
 604                  * not just the control's own inherent value
 605                  */
 606                 fader_position = gain_to_slider_position_with_max (_control->get_value(), Config->get_max_gain());
 607                 break;
 608         case DataType::MIDI:
 609                 fader_position = _control->get_value ();
 610                 break;
 611         }
 612
 613         if (gain_adjustment.get_value() != fader_position) {
 614                 ignore_toggle = true;
 615                 gain_adjustment.set_value (fader_position);
 616                 ignore_toggle = false;
 617         }
 618 }
 619
 620 void
 621 GainMeterBase::gain_changed ()
 622 {
 623         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed);
 624         effective_gain_display ();
 625 }
 626
 627 void
 628 GainMeterBase::set_meter_strip_name (const char * name)
 629 {
 630         char tmp[256];
 631         meter_metric_area.set_name (name);
 632         sprintf(tmp, "Mark%sLeft", name);
 633         meter_ticks1_area.set_name (tmp);
 634         sprintf(tmp, "Mark%sRight", name);
 635         meter_ticks2_area.set_name (tmp);
 636 }
 637
 638 void
 639 GainMeterBase::set_fader_name (const char * name)
 640 {
 641         gain_slider->set_name (name);
 642 }
 643
 644 void
 645 GainMeterBase::update_gain_sensitive ()
 646 {
 647         bool x = !(_control->alist()->automation_state() & Play);
 648         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 649 }
 650
 651 gint
 652 GainMeterBase::meter_press(GdkEventButton* ev)
 653 {
 654         if (!_route) {
 655                 return false;
 656         }
 657         if (!ignore_toggle) {
 658                 switch (ev->button) {
 659                         case 1:
 660                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 661
 662                                         /* Primary+Tertiary-click applies change to all routes */
 663
 664                                         meter_point_change_target = MeterPointChangeAll;
 665
 666                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 667
 668                                         /* Primary-click: apply change to all routes in group */
 669
 670                                         meter_point_change_target = MeterPointChangeGroup;
 671
 672                                 } else {
 673
 674                                         /* click: change just this route */
 675
 676                                         meter_point_change_target = MeterPointChangeSingle;
 677                                 }
 678                                 Gtkmm2ext::anchored_menu_popup(&meter_point_menu,
 679                                                              &meter_point_button,
 680                                                            "", 1, ev->time);
 681                                 break;
 682                         default:
 683                                 break;
 684                 }
 685         }
 686         return true;
 687 }
 688
 689 void
 690 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 691 {
 692         route.set_meter_point (mp);
 693 }
 694
 695 void
 696 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 697 {
 698         RouteGroup* route_group;
 699
 700         if ((route_group = route.route_group ()) != 0) {
 701                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 702         } else {
 703                 route.set_meter_point (mp);
 704         }
 705 }
 706
 707 void
 708 GainMeterBase::meter_point_clicked (MeterPoint mp)
 709 {
 710         if (_route) {
 711                 switch (meter_point_change_target) {
 712                         case MeterPointChangeAll:
 713                                 _session->foreach_route (this, &GainMeterBase::set_meter_point, mp);
 714                                 break;
 715                         case MeterPointChangeGroup:
 716                                 set_route_group_meter_point (*_route, mp);
 717                                 break;
 718                         case MeterPointChangeSingle:
 719                                 _route->set_meter_point (mp);
 720                                 break;
 721                 }
 722         }
 723 }
 724
 725 void
 726 GainMeterBase::amp_start_touch ()
 727 {
 728         _control->start_touch (_control->session().transport_frame());
 729 }
 730
 731 void
 732 GainMeterBase::amp_stop_touch ()
 733 {
 734         _control->stop_touch (false, _control->session().transport_frame());
 735         effective_gain_display ();
 736 }
 737
 738 gint
 739 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 740 {
 741         if (ev->type == GDK_BUTTON_RELEASE) {
 742                 return TRUE;
 743         }
 744
 745         switch (ev->button) {
 746                 case 1:
 747                         gain_astate_propagate = Keyboard::modifier_state_contains (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier | Keyboard::TertiaryModifier));
 748                         Gtkmm2ext::anchored_menu_popup(&gain_astate_menu,
 749                                                        &gain_automation_state_button,
 750                                                        "", 1, ev->time);
 751                         break;
 752                 default:
 753                         break;
 754         }
 755
 756         return TRUE;
 757 }
 758
 759
 760 string
 761 GainMeterBase::astate_string (AutoState state)
 762 {
 763         return _astate_string (state, false);
 764 }
 765
 766 string
 767 GainMeterBase::short_astate_string (AutoState state)
 768 {
 769         return _astate_string (state, true);
 770 }
 771
 772 string
 773 GainMeterBase::_astate_string (AutoState state, bool shrt)
 774 {
 775         string sstr;
 776
 777         switch (state) {
 778         case ARDOUR::Off:
 779                 sstr = (shrt ? "M" : _("M"));
 780                 break;
 781         case Play:
 782                 sstr = (shrt ? "P" : _("P"));
 783                 break;
 784         case Touch:
 785                 sstr = (shrt ? "T" : _("T"));
 786                 break;
 787         case Write:
 788                 sstr = (shrt ? "W" : _("W"));
 789                 break;
 790         }
 791
 792         return sstr;
 793 }
 794
 795 void
 796 GainMeterBase::gain_automation_state_changed ()
 797 {
 798         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed);
 799
 800         switch (_width) {
 801         case Wide:
 802                 gain_automation_state_button.set_text (astate_string(_control->alist()->automation_state()));
 803                 break;
 804         case Narrow:
 805                 gain_automation_state_button.set_text (short_astate_string(_control->alist()->automation_state()));
 806                 break;
 807         }
 808
 809         const bool automation_watch_required = (_control->alist()->automation_state() != ARDOUR::Off);
 810
 811         if (gain_automation_state_button.get_active() != automation_watch_required) {
 812                 ignore_toggle = true;
 813                 gain_automation_state_button.set_active (automation_watch_required);
 814                 ignore_toggle = false;
 815         }
 816
 817         update_gain_sensitive ();
 818
 819         gain_watching.disconnect();
 820 }
 821
 822 const ChanCount
 823 GainMeterBase::meter_channels() const
 824 {
 825                 if (_meter) { return _meter->input_streams(); }
 826                 else { return ChanCount(); }
 827 }
 828 void
 829 GainMeterBase::update_meters()
 830 {
 831         char buf[32];
 832         float mpeak = level_meter->update_meters();
 833
 834         if (mpeak > max_peak) {
 835                 max_peak = mpeak;
 836                 if (mpeak <= -200.0f) {
 837                         peak_display.set_text (_("-inf"));
 838                 } else {
 839                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 840                         peak_display.set_text (buf);
 841                 }
 842         }
 843         if (mpeak >= UIConfiguration::instance().get_meter_peak()) {
 844                 peak_display.set_name ("MixerStripPeakDisplayPeak");
 845         }
 846 }
 847
 848 void GainMeterBase::color_handler(bool /*dpi*/)
 849 {
 850         setup_meters();
 851 }
 852
 853 void
 854 GainMeterBase::set_width (Width w, int len)
 855 {
 856         _width = w;
 857         int meter_width = 5;
 858         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 859                 meter_width = 10;
 860         }
 861         level_meter->setup_meters(len, meter_width);
 862 }
 863
 864
 865 void
 866 GainMeterBase::on_theme_changed()
 867 {
 868 }
 869
 870 void
 871 GainMeterBase::redraw_metrics()
 872 {
 873         meter_metric_area.queue_draw ();
 874         meter_ticks1_area.queue_draw ();
 875         meter_ticks2_area.queue_draw ();
 876 }
 877
 878 #define PX_SCALE(pxmin, dflt) rint(std::max((double)pxmin, (double)dflt * UIConfiguration::instance().get_ui_scale()))
 879
 880 GainMeter::GainMeter (Session* s, int fader_length)
 881         : GainMeterBase (s, false, fader_length, 24)
 882         , gain_display_box(true, 0)
 883         , hbox(true, 2)
 884 {
 885         if (gain_display.get_parent()) {
 886                 gain_display.get_parent()->remove (gain_display);
 887         }
 888         gain_display_box.pack_start (gain_display, true, true);
 889
 890         if (peak_display.get_parent()) {
 891                 peak_display.get_parent()->remove (gain_display);
 892         }
 893         gain_display_box.pack_start (peak_display, true, true);
 894
 895         meter_metric_area.set_name ("AudioTrackMetrics");
 896         meter_metric_area.set_size_request(PX_SCALE(24, 24), -1);
 897
 898         gain_automation_state_button.set_name ("mixer strip button");
 899
 900         set_tooltip (gain_automation_state_button, _("Fader automation mode"));
 901
 902         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 903
 904         gain_automation_state_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 905
 906         fader_vbox.set_spacing (0);
 907         fader_vbox.pack_start (*gain_slider, true, true);
 908
 909         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 910         fader_alignment.add (fader_vbox);
 911
 912         hbox.pack_start (fader_alignment, true, true);
 913
 914         set_spacing (PX_SCALE(2, 2));
 915
 916         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 917         pack_start (hbox, true, true);
 918
 919         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 920         meter_alignment.add (*level_meter);
 921
 922         meter_metric_area.signal_expose_event().connect (
 923                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 924
 925         meter_ticks1_area.set_size_request (PX_SCALE(3, 3), -1);
 926         meter_ticks2_area.set_size_request (PX_SCALE(3, 3), -1);
 927
 928         meter_ticks1_area.signal_expose_event().connect (
 929                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
 930         meter_ticks2_area.signal_expose_event().connect (
 931                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
 932
 933         meter_hbox.pack_start (meter_ticks1_area, false, false);
 934         meter_hbox.pack_start (meter_alignment, false, false);
 935         meter_hbox.pack_start (meter_ticks2_area, false, false);
 936         meter_hbox.pack_start (meter_metric_area, false, false);
 937 }
 938 #undef PX_SCALE
 939
 940 GainMeter::~GainMeter () { }
 941
 942 void
 943 GainMeter::set_controls (boost::shared_ptr<Route> r,
 944                          boost::shared_ptr<PeakMeter> meter,
 945                          boost::shared_ptr<Amp> amp,
 946                          boost::shared_ptr<GainControl> control)
 947 {
 948         if (meter_hbox.get_parent()) {
 949                 hbox.remove (meter_hbox);
 950         }
 951
 952 //      if (gain_automation_state_button.get_parent()) {
 953 //              fader_vbox->remove (gain_automation_state_button);
 954 //      }
 955
 956         GainMeterBase::set_controls (r, meter, amp, control);
 957
 958         if (_meter) {
 959                 _meter->ConfigurationChanged.connect (
 960                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
 961                         );
 962                 _meter->TypeChanged.connect (
 963                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_type_changed, this, _1), gui_context()
 964                         );
 965
 966                 meter_configuration_changed (_meter->input_streams ());
 967         }
 968
 969
 970         if (_route) {
 971                 _route->active_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::route_active_changed, this), gui_context ());
 972                 hbox.pack_start (meter_hbox, true, true);
 973                 meter_hbox.show ();
 974         }
 975
 976 //      if (r && !r->is_auditioner()) {
 977 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 978 //      }
 979
 980         gain_display_box.show ();
 981         gain_display.show ();
 982         gain_slider->show ();
 983         fader_vbox.show ();
 984         fader_alignment.show ();
 985         hbox.show ();
 986         setup_meters ();
 987 }
 988
 989 int
 990 GainMeter::get_gm_width ()
 991 {
 992         Gtk::Requisition sz;
 993         int min_w = 0;
 994         sz.width = 0;
 995         meter_metric_area.size_request (sz);
 996         min_w += sz.width;
 997         level_meter->size_request (sz);
 998         min_w += sz.width;
 999
1000         fader_alignment.size_request (sz);
1001         if (_width == Wide)
1002                 return max(sz.width * 2, min_w * 2) + 6;
1003         else
1004                 return sz.width + min_w + 6;
1005
1006 }
1007
1008 gint
1009 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1010 {
1011         if (!_route) {
1012                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1013                 return meter_expose_metrics(ev, MeterPeak, _types, &meter_metric_area);
1014         }
1015         return meter_expose_metrics(ev, _route->meter_type(), _types, &meter_metric_area);
1016 }
1017
1018 gint
1019 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
1020 {
1021         if (!_route) {
1022                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1023                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks1_area);
1024         }
1025         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks1_area);
1026 }
1027
1028 gint
1029 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1030 {
1031         if (!_route) {
1032                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1033                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks2_area);
1034         }
1035         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks2_area);
1036 }
1037
1038 void
1039 GainMeter::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
1040 {
1041         gain_display.queue_draw();
1042         peak_display.queue_draw();
1043 }
1044
1045 boost::shared_ptr<PBD::Controllable>
1046 GainMeterBase::get_controllable()
1047 {
1048         if (_amp) {
1049                 return _control;
1050         } else {
1051                 return boost::shared_ptr<PBD::Controllable>();
1052         }
1053 }
1054
1055 bool
1056 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1057 {
1058         return static_cast<bool>(LevelMeterButtonPress (ev)); /* EMIT SIGNAL */
1059 }
1060
1061 void
1062 GainMeter::meter_configuration_changed (ChanCount c)
1063 {
1064         int type = 0;
1065         _types.clear ();
1066
1067         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1068                 if (c.get (*i) > 0) {
1069                         _types.push_back (*i);
1070                         type |= 1 << (*i);
1071                 }
1072         }
1073
1074         if (_route
1075                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1076                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1077                         ) {
1078                 if (_route->active()) {
1079                         set_meter_strip_name ("AudioBusMetrics");
1080                 } else {
1081                         set_meter_strip_name ("AudioBusMetricsInactive");
1082                 }
1083         }
1084         else if (
1085                            (type == (1 << DataType::MIDI))
1086                         || (_route && boost::dynamic_pointer_cast<MidiTrack>(_route))
1087                         ) {
1088                 if (!_route || _route->active()) {
1089                         set_meter_strip_name ("MidiTrackMetrics");
1090                 } else {
1091                         set_meter_strip_name ("MidiTrackMetricsInactive");
1092                 }
1093         }
1094         else if (type == (1 << DataType::AUDIO)) {
1095                 if (!_route || _route->active()) {
1096                         set_meter_strip_name ("AudioTrackMetrics");
1097                 } else {
1098                         set_meter_strip_name ("AudioTrackMetricsInactive");
1099                 }
1100         } else {
1101                 if (!_route || _route->active()) {
1102                         set_meter_strip_name ("AudioMidiTrackMetrics");
1103                 } else {
1104                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1105                 }
1106         }
1107
1108         setup_meters();
1109         meter_clear_pattern_cache(4);
1110         on_style_changed(Glib::RefPtr<Gtk::Style>());
1111 }
1112
1113 void
1114 GainMeter::route_active_changed ()
1115 {
1116         if (_meter) {
1117                 meter_configuration_changed (_meter->input_streams ());
1118         }
1119 }
1120
1121 void
1122 GainMeter::meter_type_changed (MeterType t)
1123 {
1124         _route->set_meter_type(t);
1125         RedrawMetrics();
1126 }