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 "gain_meter.h"
  38 #include "logmeter.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 "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 GainMeterBase::GainMeterBase (Session* s, bool horizontal, int fader_length, int fader_girth)
  86         : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()),  // value
  87                            0.0,  // lower
  88                            1.0,  // upper
  89                            dB_coeff_step(Config->get_max_gain()) / 10.0,  // step increment
  90                            dB_coeff_step(Config->get_max_gain()))  // page increment
  91         , gain_automation_style_button ("")
  92         , gain_automation_state_button ("")
  93         , _data_type (DataType::AUDIO)
  94 {
  95         using namespace Menu_Helpers;
  96
  97         set_session (s);
  98
  99         ignore_toggle = false;
 100         meter_menu = 0;
 101         next_release_selects = false;
 102         _width = Wide;
 103
 104         fader_length = rint (fader_length * UIConfiguration::instance().get_ui_scale());
 105         fader_girth = rint (fader_girth * UIConfiguration::instance().get_ui_scale());
 106
 107         if (horizontal) {
 108                 gain_slider = manage (new HSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 109         } else {
 110                 gain_slider = manage (new VSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 111         }
 112
 113         level_meter = new LevelMeterHBox(_session);
 114
 115         level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
 116         meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
 117         meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
 118
 119         gain_slider->set_tweaks (PixFader::Tweaks(PixFader::NoButtonForward | PixFader::NoVerticalScroll));
 120         gain_slider->StartGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_start_touch));
 121         gain_slider->StopGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_stop_touch));
 122         gain_slider->set_name ("GainFader");
 123
 124         gain_display.set_name ("MixerStripGainDisplay");
 125         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 126         gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
 127         gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 128         gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 129         gain_display.set_alignment(0.5);
 130
 131         peak_display.set_name ("MixerStripPeakDisplay");
 132         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 133         max_peak = minus_infinity();
 134         peak_display.set_text (_("-inf"));
 135         peak_display.set_alignment(0.5);
 136
 137         /* stuff related to the fact that the peak display is not, in
 138            fact, supposed to be a text entry.
 139         */
 140         peak_display.set_events (peak_display.get_events() & ~(Gdk::EventMask (Gdk::LEAVE_NOTIFY_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::POINTER_MOTION_MASK)));
 141         peak_display.signal_map().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default), &peak_display));
 142         peak_display.signal_state_changed().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default_state), &peak_display));
 143         peak_display.unset_flags (Gtk::CAN_FOCUS);
 144         peak_display.set_editable (false);
 145
 146         gain_automation_style_button.set_name ("mixer strip button");
 147         gain_automation_state_button.set_name ("mixer strip button");
 148
 149         set_tooltip (gain_automation_state_button, _("Fader automation mode"));
 150         set_tooltip (gain_automation_style_button, _("Fader automation type"));
 151
 152         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 153         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 154
 155         gain_automation_state_button.set_size_request(15, 15);
 156         gain_automation_style_button.set_size_request(15, 15);
 157
 158         gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 159         gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 160
 161         gain_astate_menu.set_name ("ArdourContextMenu");
 162         gain_astyle_menu.set_name ("ArdourContextMenu");
 163
 164         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted));
 165         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 166         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 167
 168         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 169         ResetRoutePeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_route_peak_display));
 170         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 171         RedrawMetrics.connect (sigc::mem_fun(*this, &GainMeterBase::redraw_metrics));
 172
 173         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 174         UIConfiguration::instance().ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 175         UIConfiguration::instance().DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 176 }
 177
 178 GainMeterBase::~GainMeterBase ()
 179 {
 180         delete meter_menu;
 181         delete level_meter;
 182 }
 183
 184 void
 185 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 186                              boost::shared_ptr<PeakMeter> pm,
 187                              boost::shared_ptr<Amp> amp,
 188                              boost::shared_ptr<GainControl> control)
 189 {
 190         connections.clear ();
 191         model_connections.drop_connections ();
 192
 193         /* no meter and no control? nothing to do ... */
 194
 195         if (!pm && !control) {
 196                 level_meter->set_meter (0);
 197                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 198                 _meter.reset ();
 199                 _amp.reset ();
 200                 _route.reset ();
 201                 _control.reset ();
 202                 return;
 203         }
 204
 205         _meter = pm;
 206         _amp = amp;
 207         _route = r;
 208         _control = control;
 209
 210         level_meter->set_meter (pm.get());
 211         gain_slider->set_controllable (_control);
 212
 213         if (amp) {
 214                 amp->ConfigurationChanged.connect (
 215                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 216                         );
 217         }
 218
 219         setup_gain_adjustment ();
 220
 221         if (!_route || !_route->is_auditioner()) {
 222
 223                 using namespace Menu_Helpers;
 224
 225                 gain_astate_menu.items().clear ();
 226
 227                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 228                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 229                                                                           Evoral::Parameter(GainAutomation), (AutoState) ARDOUR::Off)));
 230                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 231                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 232                                                                     Evoral::Parameter(GainAutomation), (AutoState) Play)));
 233                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 234                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 235                                                                     Evoral::Parameter(GainAutomation), (AutoState) Write)));
 236                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 237                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 238                                                                     Evoral::Parameter(GainAutomation), (AutoState) Touch)));
 239
 240                 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
 241                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 242
 243                 _control->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 244                 _control->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
 245
 246                 gain_automation_state_changed ();
 247         }
 248
 249         _control->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 250
 251         gain_changed ();
 252         show_gain ();
 253         update_gain_sensitive ();
 254 }
 255
 256 void
 257 GainMeterBase::setup_gain_adjustment ()
 258 {
 259         if (!_amp) {
 260                 return;
 261         }
 262
 263         if (_previous_amp_output_streams == _amp->output_streams ()) {
 264                 return;
 265         }
 266
 267         ignore_toggle = true;
 268
 269         if (_amp->output_streams().n_midi() <=  _amp->output_streams().n_audio()) {
 270                 _data_type = DataType::AUDIO;
 271                 gain_adjustment.set_lower (GAIN_COEFF_ZERO);
 272                 gain_adjustment.set_upper (GAIN_COEFF_UNITY);
 273                 gain_adjustment.set_step_increment (dB_coeff_step(Config->get_max_gain()) / 10.0);
 274                 gain_adjustment.set_page_increment (dB_coeff_step(Config->get_max_gain()));
 275                 gain_slider->set_default_value (gain_to_slider_position (GAIN_COEFF_UNITY));
 276         } else {
 277                 _data_type = DataType::MIDI;
 278                 gain_adjustment.set_lower (0.0);
 279                 gain_adjustment.set_upper (2.0);
 280                 gain_adjustment.set_step_increment (1.0/128.0);
 281                 gain_adjustment.set_page_increment (10.0/128.0);
 282                 gain_slider->set_default_value (1.0);
 283         }
 284
 285         ignore_toggle = false;
 286
 287         effective_gain_display ();
 288
 289         _previous_amp_output_streams = _amp->output_streams ();
 290 }
 291
 292 void
 293 GainMeterBase::hide_all_meters ()
 294 {
 295         level_meter->hide_meters();
 296 }
 297
 298 void
 299 GainMeter::hide_all_meters ()
 300 {
 301         GainMeterBase::hide_all_meters ();
 302 }
 303
 304 void
 305 GainMeterBase::setup_meters (int len)
 306 {
 307         int meter_width = 5;
 308         uint32_t meter_channels = 0;
 309         if (_meter) {
 310                 meter_channels = _meter->input_streams().n_total();
 311         } else if (_route) {
 312                 meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 313         }
 314
 315         switch (_width) {
 316                 case Wide:
 317                         //meter_ticks1_area.show();
 318                         //meter_ticks2_area.show();
 319                         meter_metric_area.show();
 320                         if (meter_channels == 1) {
 321                                 meter_width = 10;
 322                         }
 323                         break;
 324                 case Narrow:
 325                         if (meter_channels > 1) {
 326                                 meter_width = 4;
 327                         }
 328                         //meter_ticks1_area.hide();
 329                         //meter_ticks2_area.hide();
 330                         meter_metric_area.hide();
 331                         break;
 332         }
 333         level_meter->setup_meters(len, meter_width);
 334 }
 335
 336 void
 337 GainMeterBase::set_type (MeterType t)
 338 {
 339         level_meter->set_type(t);
 340 }
 341
 342 void
 343 GainMeter::setup_meters (int len)
 344 {
 345         switch (_width) {
 346                 case Wide:
 347                         {
 348                                 uint32_t meter_channels = 0;
 349                                 if (_meter) {
 350                                         meter_channels = _meter->input_streams().n_total();
 351                                 } else if (_route) {
 352                                         meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 353                                 }
 354                                 hbox.set_homogeneous(meter_channels < 7 ? true : false);
 355                         }
 356                         break;
 357                 case Narrow:
 358                         hbox.set_homogeneous(false);
 359                         break;
 360         }
 361         GainMeterBase::setup_meters (len);
 362 }
 363
 364 void
 365 GainMeter::set_type (MeterType t)
 366 {
 367         GainMeterBase::set_type (t);
 368 }
 369
 370 bool
 371 GainMeterBase::gain_key_press (GdkEventKey* ev)
 372 {
 373         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 374                 /* drop through to normal handling */
 375                 return false;
 376         }
 377         /* illegal key for gain entry */
 378         return true;
 379 }
 380
 381 bool
 382 GainMeterBase::peak_button_release (GdkEventButton* ev)
 383 {
 384         /* reset peak label */
 385
 386         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 387                 ResetAllPeakDisplays ();
 388         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 389                 if (_route) {
 390                         ResetGroupPeakDisplays (_route->route_group());
 391                 }
 392         } else {
 393                 ResetRoutePeakDisplays (_route.get());
 394         }
 395
 396         return true;
 397 }
 398
 399 void
 400 GainMeterBase::reset_peak_display ()
 401 {
 402         _meter->reset_max();
 403         level_meter->clear_meters();
 404         max_peak = -INFINITY;
 405         peak_display.set_text (_("-inf"));
 406         peak_display.set_name ("MixerStripPeakDisplay");
 407 }
 408
 409 void
 410 GainMeterBase::reset_route_peak_display (Route* route)
 411 {
 412         if (_route && _route.get() == route) {
 413                 reset_peak_display ();
 414         }
 415 }
 416
 417 void
 418 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 419 {
 420         if (_route && group == _route->route_group()) {
 421                 reset_peak_display ();
 422         }
 423 }
 424
 425 void
 426 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 427 {
 428         using namespace Menu_Helpers;
 429
 430         if (meter_menu == 0) {
 431                 meter_menu = new Gtk::Menu;
 432                 MenuList& items = meter_menu->items();
 433
 434                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 435                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 436                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 437                 items.push_back (SeparatorElem());
 438                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 439                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 440                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 441         }
 442
 443         meter_menu->popup (1, ev->time);
 444 }
 445
 446 bool
 447 GainMeterBase::gain_focused (GdkEventFocus* ev)
 448 {
 449         if (ev->in) {
 450                 gain_display.select_region (0, -1);
 451         } else {
 452                 gain_display.select_region (0, 0);
 453         }
 454         return false;
 455 }
 456
 457 void
 458 GainMeterBase::gain_activated ()
 459 {
 460         float f;
 461
 462         {
 463                 // Switch to user's preferred locale so that
 464                 // if they use different LC_NUMERIC conventions,
 465                 // we will honor them.
 466
 467                 PBD::LocaleGuard lg;
 468                 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 469                         return;
 470                 }
 471         }
 472
 473         /* clamp to displayable values */
 474         if (_data_type == DataType::AUDIO) {
 475                 f = min (f, 6.0f);
 476                 _control->set_value (dB_to_coefficient(f), Controllable::NoGroup);
 477         } else {
 478                 f = min (fabs (f), 2.0f);
 479                 _control->set_value (f, Controllable::NoGroup);
 480         }
 481
 482         if (gain_display.has_focus()) {
 483                 Gtk::Widget* w = gain_display.get_toplevel();
 484                 if (w) {
 485                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 486
 487                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 488
 489                         if (win) {
 490                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 491                                 if (f) {
 492                                         gtk_widget_grab_focus (f);
 493                                         return;
 494                                 }
 495                         }
 496                 }
 497         }
 498 }
 499
 500 void
 501 GainMeterBase::show_gain ()
 502 {
 503         char buf[32];
 504
 505         float v = gain_adjustment.get_value();
 506
 507         switch (_data_type) {
 508         case DataType::AUDIO:
 509                 if (v == 0.0) {
 510                         strcpy (buf, _("-inf"));
 511                 } else {
 512                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 513                 }
 514                 break;
 515         case DataType::MIDI:
 516                 snprintf (buf, sizeof (buf), "%.1f", v);
 517                 break;
 518         }
 519
 520         gain_display.set_text (buf);
 521 }
 522
 523 void
 524 GainMeterBase::gain_adjusted ()
 525 {
 526         gain_t value;
 527
 528         /* convert from adjustment range (0..1) to gain coefficient */
 529
 530         if (_data_type == DataType::AUDIO) {
 531                 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 532         } else {
 533                 value = gain_adjustment.get_value();
 534         }
 535
 536         if (!ignore_toggle) {
 537                 if (_route && _route->amp() == _amp) {
 538                         _route->set_gain (value, Controllable::UseGroup);
 539                 } else {
 540                         _control->set_value (value, Controllable::NoGroup);
 541                 }
 542         }
 543
 544         show_gain ();
 545 }
 546
 547 void
 548 GainMeterBase::effective_gain_display ()
 549 {
 550         float value = GAIN_COEFF_ZERO;
 551
 552         switch (_data_type) {
 553         case DataType::AUDIO:
 554                 value = gain_to_slider_position_with_max (_control->get_value(), Config->get_max_gain());
 555                 break;
 556         case DataType::MIDI:
 557                 value = _control->get_value ();
 558                 break;
 559         }
 560
 561         if (gain_adjustment.get_value() != value) {
 562                 ignore_toggle = true;
 563                 gain_adjustment.set_value (value);
 564                 ignore_toggle = false;
 565         }
 566 }
 567
 568 void
 569 GainMeterBase::gain_changed ()
 570 {
 571         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 572 }
 573
 574 void
 575 GainMeterBase::set_meter_strip_name (const char * name)
 576 {
 577         char tmp[256];
 578         meter_metric_area.set_name (name);
 579         sprintf(tmp, "Mark%sLeft", name);
 580         meter_ticks1_area.set_name (tmp);
 581         sprintf(tmp, "Mark%sRight", name);
 582         meter_ticks2_area.set_name (tmp);
 583 }
 584
 585 void
 586 GainMeterBase::set_fader_name (const char * name)
 587 {
 588         gain_slider->set_name (name);
 589 }
 590
 591 void
 592 GainMeterBase::update_gain_sensitive ()
 593 {
 594         bool x = !(_control->alist()->automation_state() & Play);
 595         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 596 }
 597
 598 static MeterPoint
 599 next_meter_point (MeterPoint mp)
 600 {
 601         switch (mp) {
 602         case MeterInput:
 603                 return MeterPreFader;
 604                 break;
 605
 606         case MeterPreFader:
 607                 return MeterPostFader;
 608                 break;
 609
 610         case MeterPostFader:
 611                 return MeterOutput;
 612                 break;
 613
 614         case MeterOutput:
 615                 return MeterCustom;
 616                 break;
 617
 618         case MeterCustom:
 619                 return MeterInput;
 620                 break;
 621         }
 622
 623         abort(); /*NOTREACHED*/
 624         return MeterInput;
 625 }
 626
 627 gint
 628 GainMeterBase::meter_press(GdkEventButton* ev)
 629 {
 630         wait_for_release = false;
 631
 632         if (!_route) {
 633                 return FALSE;
 634         }
 635
 636         if (!ignore_toggle) {
 637
 638                 if (Keyboard::is_context_menu_event (ev)) {
 639
 640                         // no menu at this time.
 641
 642                 } else {
 643
 644                         if (Keyboard::is_button2_event(ev)) {
 645
 646                                 // Primary-button2 click is the midi binding click
 647                                 // button2-click is "momentary"
 648
 649                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 650                                         wait_for_release = true;
 651                                         old_meter_point = _route->meter_point ();
 652                                 }
 653                         }
 654
 655                         if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
 656
 657                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 658
 659                                         /* Primary+Tertiary-click applies change to all routes */
 660
 661                                         _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
 662
 663
 664                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 665
 666                                         /* Primary-click: solo mix group.
 667                                            NOTE: Primary-button2 is MIDI learn.
 668                                         */
 669
 670                                         if (ev->button == 1) {
 671                                                 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 672                                         }
 673
 674                                 } else {
 675
 676                                         /* click: change just this route */
 677
 678                                         // XXX no undo yet
 679
 680                                         _route->set_meter_point (next_meter_point (_route->meter_point()));
 681                                 }
 682                         }
 683                 }
 684         }
 685
 686         return true;
 687
 688 }
 689
 690 gint
 691 GainMeterBase::meter_release(GdkEventButton*)
 692 {
 693         if (!ignore_toggle) {
 694                 if (wait_for_release) {
 695                         wait_for_release = false;
 696
 697                         if (_route) {
 698                                 set_meter_point (*_route, old_meter_point);
 699                         }
 700                 }
 701         }
 702
 703         return true;
 704 }
 705
 706 void
 707 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 708 {
 709         route.set_meter_point (mp);
 710 }
 711
 712 void
 713 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 714 {
 715         RouteGroup* route_group;
 716
 717         if ((route_group = route.route_group ()) != 0) {
 718                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 719         } else {
 720                 route.set_meter_point (mp);
 721         }
 722 }
 723
 724 void
 725 GainMeterBase::meter_point_clicked ()
 726 {
 727         if (_route) {
 728                 /* WHAT? */
 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 }
 743
 744 gint
 745 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 746 {
 747         if (ev->type == GDK_BUTTON_RELEASE) {
 748                 return TRUE;
 749         }
 750
 751         switch (ev->button) {
 752                 case 1:
 753                         gain_astate_menu.popup (1, ev->time);
 754                         break;
 755                 default:
 756                         break;
 757         }
 758
 759         return TRUE;
 760 }
 761
 762 gint
 763 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 764 {
 765         if (ev->type == GDK_BUTTON_RELEASE) {
 766                 return TRUE;
 767         }
 768
 769         switch (ev->button) {
 770         case 1:
 771                 gain_astyle_menu.popup (1, ev->time);
 772                 break;
 773         default:
 774                 break;
 775         }
 776         return TRUE;
 777 }
 778
 779 string
 780 GainMeterBase::astate_string (AutoState state)
 781 {
 782         return _astate_string (state, false);
 783 }
 784
 785 string
 786 GainMeterBase::short_astate_string (AutoState state)
 787 {
 788         return _astate_string (state, true);
 789 }
 790
 791 string
 792 GainMeterBase::_astate_string (AutoState state, bool shrt)
 793 {
 794         string sstr;
 795
 796         switch (state) {
 797         case ARDOUR::Off:
 798                 sstr = (shrt ? "M" : _("M"));
 799                 break;
 800         case Play:
 801                 sstr = (shrt ? "P" : _("P"));
 802                 break;
 803         case Touch:
 804                 sstr = (shrt ? "T" : _("T"));
 805                 break;
 806         case Write:
 807                 sstr = (shrt ? "W" : _("W"));
 808                 break;
 809         }
 810
 811         return sstr;
 812 }
 813
 814 string
 815 GainMeterBase::astyle_string (AutoStyle style)
 816 {
 817         return _astyle_string (style, false);
 818 }
 819
 820 string
 821 GainMeterBase::short_astyle_string (AutoStyle style)
 822 {
 823         return _astyle_string (style, true);
 824 }
 825
 826 string
 827 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 828 {
 829         if (style & Trim) {
 830                 return _("Trim");
 831         } else {
 832                 /* XXX it might different in different languages */
 833
 834                 return (shrt ? _("Abs") : _("Abs"));
 835         }
 836 }
 837
 838 void
 839 GainMeterBase::gain_automation_style_changed ()
 840 {
 841         switch (_width) {
 842         case Wide:
 843                 gain_automation_style_button.set_text (astyle_string(_control->alist()->automation_style()));
 844                 break;
 845         case Narrow:
 846                 gain_automation_style_button.set_text  (short_astyle_string(_control->alist()->automation_style()));
 847                 break;
 848         }
 849 }
 850
 851 void
 852 GainMeterBase::gain_automation_state_changed ()
 853 {
 854         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed);
 855
 856         switch (_width) {
 857         case Wide:
 858                 gain_automation_state_button.set_text (astate_string(_control->alist()->automation_state()));
 859                 break;
 860         case Narrow:
 861                 gain_automation_state_button.set_text (short_astate_string(_control->alist()->automation_state()));
 862                 break;
 863         }
 864
 865         const bool automation_watch_required = (_control->alist()->automation_state() != ARDOUR::Off);
 866
 867         if (gain_automation_state_button.get_active() != automation_watch_required) {
 868                 ignore_toggle = true;
 869                 gain_automation_state_button.set_active (automation_watch_required);
 870                 ignore_toggle = false;
 871         }
 872
 873         update_gain_sensitive ();
 874
 875         gain_watching.disconnect();
 876
 877         if (automation_watch_required) {
 878                 /* start watching automation so that things move */
 879                 gain_watching = Timers::rapid_connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 880         } else {
 881                 /* update once to get the correct value shown as we re-enter off/manual mode */
 882                 effective_gain_display();
 883         }
 884 }
 885
 886 const ChanCount
 887 GainMeterBase::meter_channels() const
 888 {
 889                 if (_meter) { return _meter->input_streams(); }
 890                 else { return ChanCount(); }
 891 }
 892 void
 893 GainMeterBase::update_meters()
 894 {
 895         char buf[32];
 896         float mpeak = level_meter->update_meters();
 897
 898         if (mpeak > max_peak) {
 899                 max_peak = mpeak;
 900                 if (mpeak <= -200.0f) {
 901                         peak_display.set_text (_("-inf"));
 902                 } else {
 903                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 904                         peak_display.set_text (buf);
 905                 }
 906         }
 907         if (mpeak >= UIConfiguration::instance().get_meter_peak()) {
 908                 peak_display.set_name ("MixerStripPeakDisplayPeak");
 909         }
 910 }
 911
 912 void GainMeterBase::color_handler(bool /*dpi*/)
 913 {
 914         setup_meters();
 915 }
 916
 917 void
 918 GainMeterBase::set_width (Width w, int len)
 919 {
 920         _width = w;
 921         int meter_width = 5;
 922         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 923                 meter_width = 10;
 924         }
 925         level_meter->setup_meters(len, meter_width);
 926 }
 927
 928
 929 void
 930 GainMeterBase::on_theme_changed()
 931 {
 932 }
 933
 934 void
 935 GainMeterBase::redraw_metrics()
 936 {
 937         meter_metric_area.queue_draw ();
 938         meter_ticks1_area.queue_draw ();
 939         meter_ticks2_area.queue_draw ();
 940 }
 941
 942 #define PX_SCALE(pxmin, dflt) rint(std::max((double)pxmin, (double)dflt * UIConfiguration::instance().get_ui_scale()))
 943
 944 GainMeter::GainMeter (Session* s, int fader_length)
 945         : GainMeterBase (s, false, fader_length, 24)
 946         , gain_display_box(true, 0)
 947         , hbox(true, 2)
 948 {
 949         if (gain_display.get_parent()) {
 950                 gain_display.get_parent()->remove (gain_display);
 951         }
 952         gain_display_box.pack_start (gain_display, true, true);
 953
 954         if (peak_display.get_parent()) {
 955                 peak_display.get_parent()->remove (gain_display);
 956         }
 957         gain_display_box.pack_start (peak_display, true, true);
 958
 959         meter_metric_area.set_name ("AudioTrackMetrics");
 960         meter_metric_area.set_size_request(PX_SCALE(24, 24), -1);
 961
 962         gain_automation_style_button.set_name ("mixer strip button");
 963         gain_automation_state_button.set_name ("mixer strip button");
 964
 965         set_tooltip (gain_automation_state_button, _("Fader automation mode"));
 966         set_tooltip (gain_automation_style_button, _("Fader automation type"));
 967
 968         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 969         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 970
 971         gain_automation_state_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 972         gain_automation_style_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 973
 974         fader_vbox = manage (new Gtk::VBox());
 975         fader_vbox->set_spacing (0);
 976         fader_vbox->pack_start (*gain_slider, true, true);
 977
 978         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 979         fader_alignment.add (*fader_vbox);
 980
 981         hbox.pack_start (fader_alignment, true, true);
 982
 983         set_spacing (PX_SCALE(2, 2));
 984
 985         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 986         pack_start (hbox, true, true);
 987
 988         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 989         meter_alignment.add (*level_meter);
 990
 991         meter_metric_area.signal_expose_event().connect (
 992                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 993
 994         meter_ticks1_area.set_size_request (PX_SCALE(3, 3), -1);
 995         meter_ticks2_area.set_size_request (PX_SCALE(3, 3), -1);
 996
 997         meter_ticks1_area.signal_expose_event().connect (
 998                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
 999         meter_ticks2_area.signal_expose_event().connect (
1000                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
1001
1002         meter_hbox.pack_start (meter_ticks1_area, false, false);
1003         meter_hbox.pack_start (meter_alignment, false, false);
1004         meter_hbox.pack_start (meter_ticks2_area, false, false);
1005         meter_hbox.pack_start (meter_metric_area, false, false);
1006 }
1007 #undef PX_SCALE
1008
1009 GainMeter::~GainMeter () { }
1010
1011 void
1012 GainMeter::set_controls (boost::shared_ptr<Route> r,
1013                          boost::shared_ptr<PeakMeter> meter,
1014                          boost::shared_ptr<Amp> amp,
1015                          boost::shared_ptr<GainControl> control)
1016 {
1017         if (meter_hbox.get_parent()) {
1018                 hbox.remove (meter_hbox);
1019         }
1020
1021 //      if (gain_automation_state_button.get_parent()) {
1022 //              fader_vbox->remove (gain_automation_state_button);
1023 //      }
1024
1025         GainMeterBase::set_controls (r, meter, amp, control);
1026
1027         if (_meter) {
1028                 _meter->ConfigurationChanged.connect (
1029                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
1030                         );
1031                 _meter->TypeChanged.connect (
1032                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_type_changed, this, _1), gui_context()
1033                         );
1034
1035                 meter_configuration_changed (_meter->input_streams ());
1036         }
1037
1038
1039         if (_route) {
1040                 _route->active_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::route_active_changed, this), gui_context ());
1041         }
1042
1043         /*
1044            if we have a non-hidden route (ie. we're not the click or the auditioner),
1045            pack some route-dependent stuff.
1046         */
1047
1048         hbox.pack_start (meter_hbox, true, true);
1049
1050 //      if (r && !r->is_auditioner()) {
1051 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
1052 //      }
1053
1054         hbox.show_all ();
1055         setup_meters ();
1056 }
1057
1058 int
1059 GainMeter::get_gm_width ()
1060 {
1061         Gtk::Requisition sz;
1062         int min_w = 0;
1063         sz.width = 0;
1064         meter_metric_area.size_request (sz);
1065         min_w += sz.width;
1066         level_meter->size_request (sz);
1067         min_w += sz.width;
1068
1069         fader_alignment.size_request (sz);
1070         if (_width == Wide)
1071                 return max(sz.width * 2, min_w * 2) + 6;
1072         else
1073                 return sz.width + min_w + 6;
1074
1075 }
1076
1077 gint
1078 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1079 {
1080         if (!_route) {
1081                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1082                 return meter_expose_metrics(ev, MeterPeak, _types, &meter_metric_area);
1083         }
1084         return meter_expose_metrics(ev, _route->meter_type(), _types, &meter_metric_area);
1085 }
1086
1087 gint
1088 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
1089 {
1090         if (!_route) {
1091                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1092                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks1_area);
1093         }
1094         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks1_area);
1095 }
1096
1097 gint
1098 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1099 {
1100         if (!_route) {
1101                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1102                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks2_area);
1103         }
1104         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks2_area);
1105 }
1106
1107 void
1108 GainMeter::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
1109 {
1110         gain_display.queue_draw();
1111         peak_display.queue_draw();
1112 }
1113
1114 boost::shared_ptr<PBD::Controllable>
1115 GainMeterBase::get_controllable()
1116 {
1117         if (_amp) {
1118                 return _control;
1119         } else {
1120                 return boost::shared_ptr<PBD::Controllable>();
1121         }
1122 }
1123
1124 bool
1125 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1126 {
1127         return static_cast<bool>(LevelMeterButtonPress (ev)); /* EMIT SIGNAL */
1128 }
1129
1130 void
1131 GainMeter::meter_configuration_changed (ChanCount c)
1132 {
1133         int type = 0;
1134         _types.clear ();
1135
1136         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1137                 if (c.get (*i) > 0) {
1138                         _types.push_back (*i);
1139                         type |= 1 << (*i);
1140                 }
1141         }
1142
1143         if (_route
1144                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1145                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1146                         ) {
1147                 if (_route->active()) {
1148                         set_meter_strip_name ("AudioBusMetrics");
1149                 } else {
1150                         set_meter_strip_name ("AudioBusMetricsInactive");
1151                 }
1152         }
1153         else if (
1154                            (type == (1 << DataType::MIDI))
1155                         || (_route && boost::dynamic_pointer_cast<MidiTrack>(_route))
1156                         ) {
1157                 if (!_route || _route->active()) {
1158                         set_meter_strip_name ("MidiTrackMetrics");
1159                 } else {
1160                         set_meter_strip_name ("MidiTrackMetricsInactive");
1161                 }
1162         }
1163         else if (type == (1 << DataType::AUDIO)) {
1164                 if (!_route || _route->active()) {
1165                         set_meter_strip_name ("AudioTrackMetrics");
1166                 } else {
1167                         set_meter_strip_name ("AudioTrackMetricsInactive");
1168                 }
1169         } else {
1170                 if (!_route || _route->active()) {
1171                         set_meter_strip_name ("AudioMidiTrackMetrics");
1172                 } else {
1173                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1174                 }
1175         }
1176
1177         setup_meters();
1178         meter_clear_pattern_cache(4);
1179         on_style_changed(Glib::RefPtr<Gtk::Style>());
1180 }
1181
1182 void
1183 GainMeter::route_active_changed ()
1184 {
1185         if (_meter) {
1186                 meter_configuration_changed (_meter->input_streams ());
1187         }
1188 }
1189
1190 void
1191 GainMeter::meter_type_changed (MeterType t)
1192 {
1193         _route->set_meter_type(t);
1194         RedrawMetrics();
1195 }