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/route_group.h"
  24 #include "ardour/session_route.h"
  25 #include "ardour/dB.h"
  26 #include "ardour/utils.h"
  27
  28 #include <pangomm.h>
  29 #include <gtkmm/style.h>
  30 #include <gdkmm/color.h>
  31 #include <gtkmm2ext/utils.h>
  32 #include <gtkmm2ext/fastmeter.h>
  33 #include <gtkmm2ext/gtk_ui.h>
  34 #include "pbd/fastlog.h"
  35 #include "pbd/stacktrace.h"
  36
  37 #include "ardour_ui.h"
  38 #include "gain_meter.h"
  39 #include "logmeter.h"
  40 #include "gui_thread.h"
  41 #include "keyboard.h"
  42 #include "public_editor.h"
  43 #include "utils.h"
  44 #include "meter_patterns.h"
  45 #include "timers.h"
  46
  47 #include "ardour/session.h"
  48 #include "ardour/route.h"
  49 #include "ardour/meter.h"
  50 #include "ardour/audio_track.h"
  51 #include "ardour/midi_track.h"
  52 #include "ardour/dB.h"
  53
  54 #include "i18n.h"
  55
  56 using namespace ARDOUR;
  57 using namespace ARDOUR_UI_UTILS;
  58 using namespace PBD;
  59 using namespace Gtkmm2ext;
  60 using namespace Gtk;
  61 using namespace std;
  62 using Gtkmm2ext::Keyboard;
  63 using namespace ArdourMeter;
  64
  65 static void
  66 reset_cursor_to_default (Gtk::Entry* widget)
  67 {
  68         Glib::RefPtr<Gdk::Window> win = widget->get_text_window ();
  69         if (win) {
  70                 /* C++ doesn't provide a pointer argument version of this
  71                    (i.e. you cannot set to NULL to get the default/parent
  72                    cursor)
  73                 */
  74                 gdk_window_set_cursor (win->gobj(), 0);
  75         }
  76 }
  77
  78 static void
  79 reset_cursor_to_default_state (Gtk::StateType, Gtk::Entry* widget)
  80 {
  81         reset_cursor_to_default (widget);
  82 }
  83
  84 GainMeterBase::GainMeterBase (Session* s, bool horizontal, int fader_length, int fader_girth)
  85         : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()),  // value
  86                            0.0,  // lower
  87                            1.0,  // upper
  88                            dB_coeff_step(Config->get_max_gain()) / 10.0,  // step increment
  89                            dB_coeff_step(Config->get_max_gain()))  // page increment
  90         , gain_automation_style_button ("")
  91         , gain_automation_state_button ("")
  92         , _data_type (DataType::AUDIO)
  93 {
  94         using namespace Menu_Helpers;
  95
  96         set_session (s);
  97
  98         ignore_toggle = false;
  99         meter_menu = 0;
 100         next_release_selects = false;
 101         _width = Wide;
 102
 103         fader_length = rint (fader_length * ARDOUR_UI::config()->get_ui_scale());
 104         fader_girth = rint (fader_girth * ARDOUR_UI::config()->get_ui_scale());
 105
 106         if (horizontal) {
 107                 gain_slider = manage (new HSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 108         } else {
 109                 gain_slider = manage (new VSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 110         }
 111
 112         level_meter = new LevelMeterHBox(_session);
 113
 114         level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
 115         meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
 116         meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
 117
 118         gain_slider->set_tweaks (PixFader::Tweaks(PixFader::NoButtonForward | PixFader::NoVerticalScroll));
 119         gain_slider->StartGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_start_touch));
 120         gain_slider->StopGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_stop_touch));
 121         gain_slider->set_name ("GainFader");
 122
 123         gain_display.set_name ("MixerStripGainDisplay");
 124         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 125         gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
 126         gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 127         gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 128         gain_display.set_alignment(0.5);
 129
 130         peak_display.set_name ("MixerStripPeakDisplay");
 131         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 132         max_peak = minus_infinity();
 133         peak_display.set_text (_("-inf"));
 134         peak_display.set_alignment(0.5);
 135
 136         /* stuff related to the fact that the peak display is not, in
 137            fact, supposed to be a text entry.
 138         */
 139         peak_display.set_events (peak_display.get_events() & ~(Gdk::EventMask (Gdk::LEAVE_NOTIFY_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::POINTER_MOTION_MASK)));
 140         peak_display.signal_map().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default), &peak_display));
 141         peak_display.signal_state_changed().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default_state), &peak_display));
 142         peak_display.unset_flags (Gtk::CAN_FOCUS);
 143         peak_display.set_editable (false);
 144
 145         gain_automation_style_button.set_name ("mixer strip button");
 146         gain_automation_state_button.set_name ("mixer strip button");
 147
 148         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 149         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 150
 151         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 152         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 153
 154         gain_automation_state_button.set_size_request(15, 15);
 155         gain_automation_style_button.set_size_request(15, 15);
 156
 157         gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 158         gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 159
 160         gain_astate_menu.set_name ("ArdourContextMenu");
 161         gain_astyle_menu.set_name ("ArdourContextMenu");
 162
 163         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted));
 164         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 165         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 166
 167         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 168         ResetRoutePeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_route_peak_display));
 169         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 170         RedrawMetrics.connect (sigc::mem_fun(*this, &GainMeterBase::redraw_metrics));
 171
 172         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 173         UIConfiguration::ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 174         UIConfiguration::DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 175 }
 176
 177 GainMeterBase::~GainMeterBase ()
 178 {
 179         delete meter_menu;
 180         delete level_meter;
 181 }
 182
 183 void
 184 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 185                              boost::shared_ptr<PeakMeter> pm,
 186                              boost::shared_ptr<Amp> amp)
 187 {
 188         connections.clear ();
 189         model_connections.drop_connections ();
 190
 191         if (!pm && !amp) {
 192                 level_meter->set_meter (0);
 193                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 194                 _meter.reset ();
 195                 _amp.reset ();
 196                 _route.reset ();
 197                 return;
 198         }
 199
 200         _meter = pm;
 201         _amp = amp;
 202         _route = r;
 203
 204         level_meter->set_meter (pm.get());
 205         gain_slider->set_controllable (amp->gain_control());
 206
 207         if (amp) {
 208                 amp->ConfigurationChanged.connect (
 209                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 210                         );
 211         }
 212
 213         setup_gain_adjustment ();
 214
 215         if (!_route || !_route->is_auditioner()) {
 216
 217                 using namespace Menu_Helpers;
 218
 219                 gain_astate_menu.items().clear ();
 220
 221                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 222                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 223                                                                           Evoral::Parameter(GainAutomation), (AutoState) ARDOUR::Off)));
 224                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 225                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 226                                                                     Evoral::Parameter(GainAutomation), (AutoState) Play)));
 227                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 228                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 229                                                                     Evoral::Parameter(GainAutomation), (AutoState) Write)));
 230                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 231                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 232                                                                     Evoral::Parameter(GainAutomation), (AutoState) Touch)));
 233
 234                 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
 235                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 236
 237                 boost::shared_ptr<AutomationControl> gc = amp->gain_control();
 238
 239                 gc->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 240                 gc->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
 241
 242                 gain_automation_state_changed ();
 243         }
 244
 245         amp->gain_control()->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 246
 247         gain_changed ();
 248         show_gain ();
 249         update_gain_sensitive ();
 250 }
 251
 252 void
 253 GainMeterBase::setup_gain_adjustment ()
 254 {
 255         if (!_amp) {
 256                 return;
 257         }
 258
 259         if (_previous_amp_output_streams == _amp->output_streams ()) {
 260                 return;
 261         }
 262
 263         ignore_toggle = true;
 264
 265         if (_amp->output_streams().n_midi() <=  _amp->output_streams().n_audio()) {
 266                 _data_type = DataType::AUDIO;
 267                 gain_adjustment.set_lower (GAIN_COEFF_ZERO);
 268                 gain_adjustment.set_upper (GAIN_COEFF_UNITY);
 269                 gain_adjustment.set_step_increment (dB_coeff_step(Config->get_max_gain()) / 10.0);
 270                 gain_adjustment.set_page_increment (dB_coeff_step(Config->get_max_gain()));
 271                 gain_slider->set_default_value (gain_to_slider_position (GAIN_COEFF_UNITY));
 272         } else {
 273                 _data_type = DataType::MIDI;
 274                 gain_adjustment.set_lower (0.0);
 275                 gain_adjustment.set_upper (2.0);
 276                 gain_adjustment.set_step_increment (1.0/128.0);
 277                 gain_adjustment.set_page_increment (10.0/128.0);
 278                 gain_slider->set_default_value (1.0);
 279         }
 280
 281         ignore_toggle = false;
 282
 283         effective_gain_display ();
 284
 285         _previous_amp_output_streams = _amp->output_streams ();
 286 }
 287
 288 void
 289 GainMeterBase::hide_all_meters ()
 290 {
 291         level_meter->hide_meters();
 292 }
 293
 294 void
 295 GainMeter::hide_all_meters ()
 296 {
 297         GainMeterBase::hide_all_meters ();
 298 }
 299
 300 void
 301 GainMeterBase::setup_meters (int len)
 302 {
 303         int meter_width = 5;
 304         uint32_t meter_channels = 0;
 305         if (_meter) {
 306                 meter_channels = _meter->input_streams().n_total();
 307         } else if (_route) {
 308                 meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 309         }
 310
 311         switch (_width) {
 312                 case Wide:
 313                         //meter_ticks1_area.show();
 314                         //meter_ticks2_area.show();
 315                         meter_metric_area.show();
 316                         if (meter_channels == 1) {
 317                                 meter_width = 10;
 318                         }
 319                         break;
 320                 case Narrow:
 321                         if (meter_channels > 1) {
 322                                 meter_width = 4;
 323                         }
 324                         //meter_ticks1_area.hide();
 325                         //meter_ticks2_area.hide();
 326                         meter_metric_area.hide();
 327                         break;
 328         }
 329         level_meter->setup_meters(len, meter_width);
 330 }
 331
 332 void
 333 GainMeterBase::set_type (MeterType t)
 334 {
 335         level_meter->set_type(t);
 336 }
 337
 338 void
 339 GainMeter::setup_meters (int len)
 340 {
 341         switch (_width) {
 342                 case Wide:
 343                         {
 344                                 uint32_t meter_channels = 0;
 345                                 if (_meter) {
 346                                         meter_channels = _meter->input_streams().n_total();
 347                                 } else if (_route) {
 348                                         meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 349                                 }
 350                                 hbox.set_homogeneous(meter_channels < 7 ? true : false);
 351                         }
 352                         break;
 353                 case Narrow:
 354                         hbox.set_homogeneous(false);
 355                         break;
 356         }
 357         GainMeterBase::setup_meters (len);
 358 }
 359
 360 void
 361 GainMeter::set_type (MeterType t)
 362 {
 363         GainMeterBase::set_type (t);
 364 }
 365
 366 bool
 367 GainMeterBase::gain_key_press (GdkEventKey* ev)
 368 {
 369         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 370                 /* drop through to normal handling */
 371                 return false;
 372         }
 373         /* illegal key for gain entry */
 374         return true;
 375 }
 376
 377 bool
 378 GainMeterBase::peak_button_release (GdkEventButton* ev)
 379 {
 380         /* reset peak label */
 381
 382         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 383                 ResetAllPeakDisplays ();
 384         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 385                 if (_route) {
 386                         ResetGroupPeakDisplays (_route->route_group());
 387                 }
 388         } else {
 389                 ResetRoutePeakDisplays (_route.get());
 390         }
 391
 392         return true;
 393 }
 394
 395 void
 396 GainMeterBase::reset_peak_display ()
 397 {
 398         _meter->reset_max();
 399         level_meter->clear_meters();
 400         max_peak = -INFINITY;
 401         peak_display.set_text (_("-inf"));
 402         peak_display.set_name ("MixerStripPeakDisplay");
 403 }
 404
 405 void
 406 GainMeterBase::reset_route_peak_display (Route* route)
 407 {
 408         if (_route && _route.get() == route) {
 409                 reset_peak_display ();
 410         }
 411 }
 412
 413 void
 414 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 415 {
 416         if (_route && group == _route->route_group()) {
 417                 reset_peak_display ();
 418         }
 419 }
 420
 421 void
 422 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 423 {
 424         using namespace Menu_Helpers;
 425
 426         if (meter_menu == 0) {
 427                 meter_menu = new Gtk::Menu;
 428                 MenuList& items = meter_menu->items();
 429
 430                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 431                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 432                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 433                 items.push_back (SeparatorElem());
 434                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 435                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 436                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 437         }
 438
 439         meter_menu->popup (1, ev->time);
 440 }
 441
 442 bool
 443 GainMeterBase::gain_focused (GdkEventFocus* ev)
 444 {
 445         if (ev->in) {
 446                 gain_display.select_region (0, -1);
 447         } else {
 448                 gain_display.select_region (0, 0);
 449         }
 450         return false;
 451 }
 452
 453 void
 454 GainMeterBase::gain_activated ()
 455 {
 456         float f;
 457
 458         {
 459                 // Switch to user's preferred locale so that
 460                 // if they use different LC_NUMERIC conventions,
 461                 // we will honor them.
 462
 463                 PBD::LocaleGuard lg ("");
 464                 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 465                         return;
 466                 }
 467         }
 468
 469         /* clamp to displayable values */
 470         if (_data_type == DataType::AUDIO) {
 471                 f = min (f, 6.0f);
 472                 _amp->set_gain (dB_to_coefficient(f), this);
 473         } else {
 474                 f = min (fabs (f), 2.0f);
 475                 _amp->set_gain (f, this);
 476         }
 477
 478         if (gain_display.has_focus()) {
 479                 Gtk::Widget* w = gain_display.get_toplevel();
 480                 if (w) {
 481                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 482
 483                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 484
 485                         if (win) {
 486                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 487                                 if (f) {
 488                                         gtk_widget_grab_focus (f);
 489                                         return;
 490                                 }
 491                         }
 492                 }
 493         }
 494 }
 495
 496 void
 497 GainMeterBase::show_gain ()
 498 {
 499         char buf[32];
 500
 501         float v = gain_adjustment.get_value();
 502
 503         switch (_data_type) {
 504         case DataType::AUDIO:
 505                 if (v == 0.0) {
 506                         strcpy (buf, _("-inf"));
 507                 } else {
 508                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 509                 }
 510                 break;
 511         case DataType::MIDI:
 512                 snprintf (buf, sizeof (buf), "%.1f", v);
 513                 break;
 514         }
 515
 516         gain_display.set_text (buf);
 517 }
 518
 519 void
 520 GainMeterBase::gain_adjusted ()
 521 {
 522         gain_t value;
 523
 524         /* convert from adjustment range (0..1) to gain coefficient */
 525
 526         if (_data_type == DataType::AUDIO) {
 527                 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 528         } else {
 529                 value = gain_adjustment.get_value();
 530         }
 531
 532         if (!ignore_toggle) {
 533                 if (_route && _route->amp() == _amp) {
 534                         _route->set_gain (value, this);
 535                 } else {
 536                         _amp->set_gain (value, this);
 537                 }
 538         }
 539
 540         show_gain ();
 541 }
 542
 543 void
 544 GainMeterBase::effective_gain_display ()
 545 {
 546         float value = GAIN_COEFF_ZERO;
 547
 548         switch (_data_type) {
 549         case DataType::AUDIO:
 550                 value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
 551                 break;
 552         case DataType::MIDI:
 553                 value = _amp->gain ();
 554                 break;
 555         }
 556
 557         if (gain_adjustment.get_value() != value) {
 558                 ignore_toggle = true;
 559                 gain_adjustment.set_value (value);
 560                 ignore_toggle = false;
 561         }
 562 }
 563
 564 void
 565 GainMeterBase::gain_changed ()
 566 {
 567         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 568 }
 569
 570 void
 571 GainMeterBase::set_meter_strip_name (const char * name)
 572 {
 573         char tmp[256];
 574         meter_metric_area.set_name (name);
 575         sprintf(tmp, "Mark%sLeft", name);
 576         meter_ticks1_area.set_name (tmp);
 577         sprintf(tmp, "Mark%sRight", name);
 578         meter_ticks2_area.set_name (tmp);
 579 }
 580
 581 void
 582 GainMeterBase::set_fader_name (const char * name)
 583 {
 584         gain_slider->set_name (name);
 585 }
 586
 587 void
 588 GainMeterBase::update_gain_sensitive ()
 589 {
 590         bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
 591         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 592 }
 593
 594 static MeterPoint
 595 next_meter_point (MeterPoint mp)
 596 {
 597         switch (mp) {
 598         case MeterInput:
 599                 return MeterPreFader;
 600                 break;
 601
 602         case MeterPreFader:
 603                 return MeterPostFader;
 604                 break;
 605
 606         case MeterPostFader:
 607                 return MeterOutput;
 608                 break;
 609
 610         case MeterOutput:
 611                 return MeterCustom;
 612                 break;
 613
 614         case MeterCustom:
 615                 return MeterInput;
 616                 break;
 617         }
 618
 619         abort(); /*NOTREACHED*/
 620         return MeterInput;
 621 }
 622
 623 gint
 624 GainMeterBase::meter_press(GdkEventButton* ev)
 625 {
 626         wait_for_release = false;
 627
 628         if (!_route) {
 629                 return FALSE;
 630         }
 631
 632         if (!ignore_toggle) {
 633
 634                 if (Keyboard::is_context_menu_event (ev)) {
 635
 636                         // no menu at this time.
 637
 638                 } else {
 639
 640                         if (Keyboard::is_button2_event(ev)) {
 641
 642                                 // Primary-button2 click is the midi binding click
 643                                 // button2-click is "momentary"
 644
 645                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 646                                         wait_for_release = true;
 647                                         old_meter_point = _route->meter_point ();
 648                                 }
 649                         }
 650
 651                         if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
 652
 653                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 654
 655                                         /* Primary+Tertiary-click applies change to all routes */
 656
 657                                         _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
 658
 659
 660                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 661
 662                                         /* Primary-click: solo mix group.
 663                                            NOTE: Primary-button2 is MIDI learn.
 664                                         */
 665
 666                                         if (ev->button == 1) {
 667                                                 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 668                                         }
 669
 670                                 } else {
 671
 672                                         /* click: change just this route */
 673
 674                                         // XXX no undo yet
 675
 676                                         _route->set_meter_point (next_meter_point (_route->meter_point()));
 677                                 }
 678                         }
 679                 }
 680         }
 681
 682         return true;
 683
 684 }
 685
 686 gint
 687 GainMeterBase::meter_release(GdkEventButton*)
 688 {
 689         if (!ignore_toggle) {
 690                 if (wait_for_release) {
 691                         wait_for_release = false;
 692
 693                         if (_route) {
 694                                 set_meter_point (*_route, old_meter_point);
 695                         }
 696                 }
 697         }
 698
 699         return true;
 700 }
 701
 702 void
 703 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 704 {
 705         route.set_meter_point (mp);
 706 }
 707
 708 void
 709 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 710 {
 711         RouteGroup* route_group;
 712
 713         if ((route_group = route.route_group ()) != 0) {
 714                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 715         } else {
 716                 route.set_meter_point (mp);
 717         }
 718 }
 719
 720 void
 721 GainMeterBase::meter_point_clicked ()
 722 {
 723         if (_route) {
 724                 /* WHAT? */
 725         }
 726 }
 727
 728 void
 729 GainMeterBase::amp_start_touch ()
 730 {
 731         _amp->gain_control()->start_touch (_amp->session().transport_frame());
 732 }
 733
 734 void
 735 GainMeterBase::amp_stop_touch ()
 736 {
 737         _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
 738 }
 739
 740 gint
 741 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 742 {
 743         if (ev->type == GDK_BUTTON_RELEASE) {
 744                 return TRUE;
 745         }
 746
 747         switch (ev->button) {
 748                 case 1:
 749                         gain_astate_menu.popup (1, ev->time);
 750                         break;
 751                 default:
 752                         break;
 753         }
 754
 755         return TRUE;
 756 }
 757
 758 gint
 759 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 760 {
 761         if (ev->type == GDK_BUTTON_RELEASE) {
 762                 return TRUE;
 763         }
 764
 765         switch (ev->button) {
 766         case 1:
 767                 gain_astyle_menu.popup (1, ev->time);
 768                 break;
 769         default:
 770                 break;
 771         }
 772         return TRUE;
 773 }
 774
 775 string
 776 GainMeterBase::astate_string (AutoState state)
 777 {
 778         return _astate_string (state, false);
 779 }
 780
 781 string
 782 GainMeterBase::short_astate_string (AutoState state)
 783 {
 784         return _astate_string (state, true);
 785 }
 786
 787 string
 788 GainMeterBase::_astate_string (AutoState state, bool shrt)
 789 {
 790         string sstr;
 791
 792         switch (state) {
 793         case ARDOUR::Off:
 794                 sstr = (shrt ? "M" : _("M"));
 795                 break;
 796         case Play:
 797                 sstr = (shrt ? "P" : _("P"));
 798                 break;
 799         case Touch:
 800                 sstr = (shrt ? "T" : _("T"));
 801                 break;
 802         case Write:
 803                 sstr = (shrt ? "W" : _("W"));
 804                 break;
 805         }
 806
 807         return sstr;
 808 }
 809
 810 string
 811 GainMeterBase::astyle_string (AutoStyle style)
 812 {
 813         return _astyle_string (style, false);
 814 }
 815
 816 string
 817 GainMeterBase::short_astyle_string (AutoStyle style)
 818 {
 819         return _astyle_string (style, true);
 820 }
 821
 822 string
 823 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 824 {
 825         if (style & Trim) {
 826                 return _("Trim");
 827         } else {
 828                 /* XXX it might different in different languages */
 829
 830                 return (shrt ? _("Abs") : _("Abs"));
 831         }
 832 }
 833
 834 void
 835 GainMeterBase::gain_automation_style_changed ()
 836 {
 837         switch (_width) {
 838         case Wide:
 839                 gain_automation_style_button.set_text (astyle_string(_amp->gain_control()->alist()->automation_style()));
 840                 break;
 841         case Narrow:
 842                 gain_automation_style_button.set_text  (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
 843                 break;
 844         }
 845 }
 846
 847 void
 848 GainMeterBase::gain_automation_state_changed ()
 849 {
 850         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
 851
 852         bool x;
 853
 854         switch (_width) {
 855         case Wide:
 856                 gain_automation_state_button.set_text (astate_string(_amp->gain_control()->alist()->automation_state()));
 857                 break;
 858         case Narrow:
 859                 gain_automation_state_button.set_text (short_astate_string(_amp->gain_control()->alist()->automation_state()));
 860                 break;
 861         }
 862
 863         x = (_amp->gain_control()->alist()->automation_state() != ARDOUR::Off);
 864
 865         if (gain_automation_state_button.get_active() != x) {
 866                 ignore_toggle = true;
 867                 gain_automation_state_button.set_active (x);
 868                 ignore_toggle = false;
 869         }
 870
 871         update_gain_sensitive ();
 872
 873         /* start watching automation so that things move */
 874
 875         gain_watching.disconnect();
 876
 877         if (x) {
 878                 gain_watching = Timers::rapid_connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 879         }
 880 }
 881
 882 const ChanCount
 883 GainMeterBase::meter_channels() const
 884 {
 885                 if (_meter) { return _meter->input_streams(); }
 886                 else { return ChanCount(); }
 887 }
 888 void
 889 GainMeterBase::update_meters()
 890 {
 891         char buf[32];
 892         float mpeak = level_meter->update_meters();
 893
 894         if (mpeak > max_peak) {
 895                 max_peak = mpeak;
 896                 if (mpeak <= -200.0f) {
 897                         peak_display.set_text (_("-inf"));
 898                 } else {
 899                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 900                         peak_display.set_text (buf);
 901                 }
 902         }
 903         if (mpeak >= ARDOUR_UI::config()->get_meter_peak()) {
 904                 peak_display.set_name ("MixerStripPeakDisplayPeak");
 905         }
 906 }
 907
 908 void GainMeterBase::color_handler(bool /*dpi*/)
 909 {
 910         setup_meters();
 911 }
 912
 913 void
 914 GainMeterBase::set_width (Width w, int len)
 915 {
 916         _width = w;
 917         int meter_width = 5;
 918         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 919                 meter_width = 10;
 920         }
 921         level_meter->setup_meters(len, meter_width);
 922 }
 923
 924
 925 void
 926 GainMeterBase::on_theme_changed()
 927 {
 928 }
 929
 930 void
 931 GainMeterBase::redraw_metrics()
 932 {
 933         meter_metric_area.queue_draw ();
 934         meter_ticks1_area.queue_draw ();
 935         meter_ticks2_area.queue_draw ();
 936 }
 937
 938 #define PX_SCALE(pxmin, dflt) rint(std::max((double)pxmin, (double)dflt * ARDOUR_UI::config()->get_ui_scale()))
 939
 940 GainMeter::GainMeter (Session* s, int fader_length)
 941         : GainMeterBase (s, false, fader_length, 24)
 942         , gain_display_box(true, 0)
 943         , hbox(true, 2)
 944 {
 945         if (gain_display.get_parent()) {
 946                 gain_display.get_parent()->remove (gain_display);
 947         }
 948         gain_display_box.pack_start (gain_display, true, true);
 949
 950         if (peak_display.get_parent()) {
 951                 peak_display.get_parent()->remove (gain_display);
 952         }
 953         gain_display_box.pack_start (peak_display, true, true);
 954
 955         meter_metric_area.set_name ("AudioTrackMetrics");
 956         meter_metric_area.set_size_request(PX_SCALE(24, 24), -1);
 957
 958         gain_automation_style_button.set_name ("mixer strip button");
 959         gain_automation_state_button.set_name ("mixer strip button");
 960
 961         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 962         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 963
 964         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 965         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 966
 967         gain_automation_state_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 968         gain_automation_style_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 969
 970         fader_vbox = manage (new Gtk::VBox());
 971         fader_vbox->set_spacing (0);
 972         fader_vbox->pack_start (*gain_slider, true, true);
 973
 974         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 975         fader_alignment.add (*fader_vbox);
 976
 977         hbox.pack_start (fader_alignment, true, true);
 978
 979         set_spacing (PX_SCALE(2, 2));
 980
 981         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 982         pack_start (hbox, Gtk::PACK_SHRINK);
 983
 984         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 985         meter_alignment.add (*level_meter);
 986
 987         meter_metric_area.signal_expose_event().connect (
 988                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 989
 990         meter_ticks1_area.set_size_request (PX_SCALE(3, 3), -1);
 991         meter_ticks2_area.set_size_request (PX_SCALE(3, 3), -1);
 992
 993         meter_ticks1_area.signal_expose_event().connect (
 994                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
 995         meter_ticks2_area.signal_expose_event().connect (
 996                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
 997
 998         meter_hbox.pack_start (meter_ticks1_area, false, false);
 999         meter_hbox.pack_start (meter_alignment, false, false);
1000         meter_hbox.pack_start (meter_ticks2_area, false, false);
1001         meter_hbox.pack_start (meter_metric_area, false, false);
1002 }
1003 #undef PX_SCALE
1004
1005 GainMeter::~GainMeter () { }
1006
1007 void
1008 GainMeter::set_controls (boost::shared_ptr<Route> r,
1009                          boost::shared_ptr<PeakMeter> meter,
1010                          boost::shared_ptr<Amp> amp)
1011 {
1012         if (meter_hbox.get_parent()) {
1013                 hbox.remove (meter_hbox);
1014         }
1015
1016 //      if (gain_automation_state_button.get_parent()) {
1017 //              fader_vbox->remove (gain_automation_state_button);
1018 //      }
1019
1020         GainMeterBase::set_controls (r, meter, amp);
1021
1022         if (_meter) {
1023                 _meter->ConfigurationChanged.connect (
1024                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
1025                         );
1026                 _meter->TypeChanged.connect (
1027                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_type_changed, this, _1), gui_context()
1028                         );
1029
1030                 meter_configuration_changed (_meter->input_streams ());
1031         }
1032
1033
1034         if (_route) {
1035                 _route->active_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::route_active_changed, this), gui_context ());
1036         }
1037
1038         /*
1039            if we have a non-hidden route (ie. we're not the click or the auditioner),
1040            pack some route-dependent stuff.
1041         */
1042
1043         hbox.pack_start (meter_hbox, true, true);
1044
1045 //      if (r && !r->is_auditioner()) {
1046 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
1047 //      }
1048
1049         hbox.show_all ();
1050         setup_meters ();
1051 }
1052
1053 int
1054 GainMeter::get_gm_width ()
1055 {
1056         Gtk::Requisition sz;
1057         int min_w = 0;
1058         sz.width = 0;
1059         meter_metric_area.size_request (sz);
1060         min_w += sz.width;
1061         level_meter->size_request (sz);
1062         min_w += sz.width;
1063
1064         fader_alignment.size_request (sz);
1065         if (_width == Wide)
1066                 return max(sz.width * 2, min_w * 2) + 6;
1067         else
1068                 return sz.width + min_w + 6;
1069
1070 }
1071
1072 gint
1073 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1074 {
1075         if (!_route) {
1076                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1077                 return meter_expose_metrics(ev, MeterPeak, _types, &meter_metric_area);
1078         }
1079         return meter_expose_metrics(ev, _route->meter_type(), _types, &meter_metric_area);
1080 }
1081
1082 gint
1083 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
1084 {
1085         if (!_route) {
1086                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1087                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks1_area);
1088         }
1089         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks1_area);
1090 }
1091
1092 gint
1093 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1094 {
1095         if (!_route) {
1096                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1097                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks2_area);
1098         }
1099         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks2_area);
1100 }
1101
1102 void
1103 GainMeter::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
1104 {
1105         gain_display.queue_draw();
1106         peak_display.queue_draw();
1107 }
1108
1109 boost::shared_ptr<PBD::Controllable>
1110 GainMeterBase::get_controllable()
1111 {
1112         if (_amp) {
1113                 return _amp->gain_control();
1114         } else {
1115                 return boost::shared_ptr<PBD::Controllable>();
1116         }
1117 }
1118
1119 bool
1120 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1121 {
1122         return static_cast<bool>(LevelMeterButtonPress (ev)); /* EMIT SIGNAL */
1123 }
1124
1125 void
1126 GainMeter::meter_configuration_changed (ChanCount c)
1127 {
1128         int type = 0;
1129         _types.clear ();
1130
1131         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1132                 if (c.get (*i) > 0) {
1133                         _types.push_back (*i);
1134                         type |= 1 << (*i);
1135                 }
1136         }
1137
1138         if (_route
1139                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1140                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1141                         ) {
1142                 if (_route->active()) {
1143                         set_meter_strip_name ("AudioBusMetrics");
1144                 } else {
1145                         set_meter_strip_name ("AudioBusMetricsInactive");
1146                 }
1147         }
1148         else if (
1149                            (type == (1 << DataType::MIDI))
1150                         || (_route && boost::dynamic_pointer_cast<MidiTrack>(_route))
1151                         ) {
1152                 if (!_route || _route->active()) {
1153                         set_meter_strip_name ("MidiTrackMetrics");
1154                 } else {
1155                         set_meter_strip_name ("MidiTrackMetricsInactive");
1156                 }
1157         }
1158         else if (type == (1 << DataType::AUDIO)) {
1159                 if (!_route || _route->active()) {
1160                         set_meter_strip_name ("AudioTrackMetrics");
1161                 } else {
1162                         set_meter_strip_name ("AudioTrackMetricsInactive");
1163                 }
1164         } else {
1165                 if (!_route || _route->active()) {
1166                         set_meter_strip_name ("AudioMidiTrackMetrics");
1167                 } else {
1168                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1169                 }
1170         }
1171
1172         setup_meters();
1173         meter_clear_pattern_cache(4);
1174         on_style_changed(Glib::RefPtr<Gtk::Style>());
1175 }
1176
1177 void
1178 GainMeter::route_active_changed ()
1179 {
1180         if (_meter) {
1181                 meter_configuration_changed (_meter->input_streams ());
1182         }
1183 }
1184
1185 void
1186 GainMeter::meter_type_changed (MeterType t)
1187 {
1188         _route->set_meter_type(t);
1189         RedrawMetrics();
1190 }