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         if (!pm && !amp) {
 194                 level_meter->set_meter (0);
 195                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 196                 _meter.reset ();
 197                 _amp.reset ();
 198                 _route.reset ();
 199                 return;
 200         }
 201
 202         _meter = pm;
 203         _amp = amp;
 204         _route = r;
 205         _control = control;
 206
 207         assert (_control);
 208
 209         level_meter->set_meter (pm.get());
 210         gain_slider->set_controllable (_control);
 211
 212         if (amp) {
 213                 amp->ConfigurationChanged.connect (
 214                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 215                         );
 216         }
 217
 218         setup_gain_adjustment ();
 219
 220         if (!_route || !_route->is_auditioner()) {
 221
 222                 using namespace Menu_Helpers;
 223
 224                 gain_astate_menu.items().clear ();
 225
 226                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 227                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 228                                                                           Evoral::Parameter(GainAutomation), (AutoState) ARDOUR::Off)));
 229                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 230                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 231                                                                     Evoral::Parameter(GainAutomation), (AutoState) Play)));
 232                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 233                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 234                                                                     Evoral::Parameter(GainAutomation), (AutoState) Write)));
 235                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 236                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 237                                                                     Evoral::Parameter(GainAutomation), (AutoState) Touch)));
 238
 239                 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
 240                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 241
 242                 _control->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 243                 _control->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
 244
 245                 gain_automation_state_changed ();
 246         }
 247
 248         _control->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 249
 250         gain_changed ();
 251         show_gain ();
 252         update_gain_sensitive ();
 253 }
 254
 255 void
 256 GainMeterBase::setup_gain_adjustment ()
 257 {
 258         if (!_amp) {
 259                 return;
 260         }
 261
 262         if (_previous_amp_output_streams == _amp->output_streams ()) {
 263                 return;
 264         }
 265
 266         ignore_toggle = true;
 267
 268         if (_amp->output_streams().n_midi() <=  _amp->output_streams().n_audio()) {
 269                 _data_type = DataType::AUDIO;
 270                 gain_adjustment.set_lower (GAIN_COEFF_ZERO);
 271                 gain_adjustment.set_upper (GAIN_COEFF_UNITY);
 272                 gain_adjustment.set_step_increment (dB_coeff_step(Config->get_max_gain()) / 10.0);
 273                 gain_adjustment.set_page_increment (dB_coeff_step(Config->get_max_gain()));
 274                 gain_slider->set_default_value (gain_to_slider_position (GAIN_COEFF_UNITY));
 275         } else {
 276                 _data_type = DataType::MIDI;
 277                 gain_adjustment.set_lower (0.0);
 278                 gain_adjustment.set_upper (2.0);
 279                 gain_adjustment.set_step_increment (1.0/128.0);
 280                 gain_adjustment.set_page_increment (10.0/128.0);
 281                 gain_slider->set_default_value (1.0);
 282         }
 283
 284         ignore_toggle = false;
 285
 286         effective_gain_display ();
 287
 288         _previous_amp_output_streams = _amp->output_streams ();
 289 }
 290
 291 void
 292 GainMeterBase::hide_all_meters ()
 293 {
 294         level_meter->hide_meters();
 295 }
 296
 297 void
 298 GainMeter::hide_all_meters ()
 299 {
 300         GainMeterBase::hide_all_meters ();
 301 }
 302
 303 void
 304 GainMeterBase::setup_meters (int len)
 305 {
 306         int meter_width = 5;
 307         uint32_t meter_channels = 0;
 308         if (_meter) {
 309                 meter_channels = _meter->input_streams().n_total();
 310         } else if (_route) {
 311                 meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 312         }
 313
 314         switch (_width) {
 315                 case Wide:
 316                         //meter_ticks1_area.show();
 317                         //meter_ticks2_area.show();
 318                         meter_metric_area.show();
 319                         if (meter_channels == 1) {
 320                                 meter_width = 10;
 321                         }
 322                         break;
 323                 case Narrow:
 324                         if (meter_channels > 1) {
 325                                 meter_width = 4;
 326                         }
 327                         //meter_ticks1_area.hide();
 328                         //meter_ticks2_area.hide();
 329                         meter_metric_area.hide();
 330                         break;
 331         }
 332         level_meter->setup_meters(len, meter_width);
 333 }
 334
 335 void
 336 GainMeterBase::set_type (MeterType t)
 337 {
 338         level_meter->set_type(t);
 339 }
 340
 341 void
 342 GainMeter::setup_meters (int len)
 343 {
 344         switch (_width) {
 345                 case Wide:
 346                         {
 347                                 uint32_t meter_channels = 0;
 348                                 if (_meter) {
 349                                         meter_channels = _meter->input_streams().n_total();
 350                                 } else if (_route) {
 351                                         meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 352                                 }
 353                                 hbox.set_homogeneous(meter_channels < 7 ? true : false);
 354                         }
 355                         break;
 356                 case Narrow:
 357                         hbox.set_homogeneous(false);
 358                         break;
 359         }
 360         GainMeterBase::setup_meters (len);
 361 }
 362
 363 void
 364 GainMeter::set_type (MeterType t)
 365 {
 366         GainMeterBase::set_type (t);
 367 }
 368
 369 bool
 370 GainMeterBase::gain_key_press (GdkEventKey* ev)
 371 {
 372         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 373                 /* drop through to normal handling */
 374                 return false;
 375         }
 376         /* illegal key for gain entry */
 377         return true;
 378 }
 379
 380 bool
 381 GainMeterBase::peak_button_release (GdkEventButton* ev)
 382 {
 383         /* reset peak label */
 384
 385         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 386                 ResetAllPeakDisplays ();
 387         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 388                 if (_route) {
 389                         ResetGroupPeakDisplays (_route->route_group());
 390                 }
 391         } else {
 392                 ResetRoutePeakDisplays (_route.get());
 393         }
 394
 395         return true;
 396 }
 397
 398 void
 399 GainMeterBase::reset_peak_display ()
 400 {
 401         _meter->reset_max();
 402         level_meter->clear_meters();
 403         max_peak = -INFINITY;
 404         peak_display.set_text (_("-inf"));
 405         peak_display.set_name ("MixerStripPeakDisplay");
 406 }
 407
 408 void
 409 GainMeterBase::reset_route_peak_display (Route* route)
 410 {
 411         if (_route && _route.get() == route) {
 412                 reset_peak_display ();
 413         }
 414 }
 415
 416 void
 417 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 418 {
 419         if (_route && group == _route->route_group()) {
 420                 reset_peak_display ();
 421         }
 422 }
 423
 424 void
 425 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 426 {
 427         using namespace Menu_Helpers;
 428
 429         if (meter_menu == 0) {
 430                 meter_menu = new Gtk::Menu;
 431                 MenuList& items = meter_menu->items();
 432
 433                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 434                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 435                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 436                 items.push_back (SeparatorElem());
 437                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 438                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 439                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 440         }
 441
 442         meter_menu->popup (1, ev->time);
 443 }
 444
 445 bool
 446 GainMeterBase::gain_focused (GdkEventFocus* ev)
 447 {
 448         if (ev->in) {
 449                 gain_display.select_region (0, -1);
 450         } else {
 451                 gain_display.select_region (0, 0);
 452         }
 453         return false;
 454 }
 455
 456 void
 457 GainMeterBase::gain_activated ()
 458 {
 459         float f;
 460
 461         {
 462                 // Switch to user's preferred locale so that
 463                 // if they use different LC_NUMERIC conventions,
 464                 // we will honor them.
 465
 466                 PBD::LocaleGuard lg ();
 467                 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 468                         return;
 469                 }
 470         }
 471
 472         /* clamp to displayable values */
 473         if (_data_type == DataType::AUDIO) {
 474                 f = min (f, 6.0f);
 475                 _control->set_value (dB_to_coefficient(f), Controllable::NoGroup);
 476         } else {
 477                 f = min (fabs (f), 2.0f);
 478                 _control->set_value (f, Controllable::NoGroup);
 479         }
 480
 481         if (gain_display.has_focus()) {
 482                 Gtk::Widget* w = gain_display.get_toplevel();
 483                 if (w) {
 484                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 485
 486                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 487
 488                         if (win) {
 489                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 490                                 if (f) {
 491                                         gtk_widget_grab_focus (f);
 492                                         return;
 493                                 }
 494                         }
 495                 }
 496         }
 497 }
 498
 499 void
 500 GainMeterBase::show_gain ()
 501 {
 502         char buf[32];
 503
 504         float v = gain_adjustment.get_value();
 505
 506         switch (_data_type) {
 507         case DataType::AUDIO:
 508                 if (v == 0.0) {
 509                         strcpy (buf, _("-inf"));
 510                 } else {
 511                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 512                 }
 513                 break;
 514         case DataType::MIDI:
 515                 snprintf (buf, sizeof (buf), "%.1f", v);
 516                 break;
 517         }
 518
 519         gain_display.set_text (buf);
 520 }
 521
 522 void
 523 GainMeterBase::gain_adjusted ()
 524 {
 525         gain_t value;
 526
 527         /* convert from adjustment range (0..1) to gain coefficient */
 528
 529         if (_data_type == DataType::AUDIO) {
 530                 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 531         } else {
 532                 value = gain_adjustment.get_value();
 533         }
 534
 535         if (!ignore_toggle) {
 536                 if (_route && _route->amp() == _amp) {
 537                         _route->set_gain (value, Controllable::UseGroup);
 538                 } else {
 539                         _control->set_value (value, Controllable::NoGroup);
 540                 }
 541         }
 542
 543         show_gain ();
 544 }
 545
 546 void
 547 GainMeterBase::effective_gain_display ()
 548 {
 549         float value = GAIN_COEFF_ZERO;
 550
 551         switch (_data_type) {
 552         case DataType::AUDIO:
 553                 value = gain_to_slider_position_with_max (_control->get_value(), Config->get_max_gain());
 554                 break;
 555         case DataType::MIDI:
 556                 value = _control->get_value ();
 557                 break;
 558         }
 559
 560         if (gain_adjustment.get_value() != value) {
 561                 ignore_toggle = true;
 562                 gain_adjustment.set_value (value);
 563                 ignore_toggle = false;
 564         }
 565 }
 566
 567 void
 568 GainMeterBase::gain_changed ()
 569 {
 570         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 571 }
 572
 573 void
 574 GainMeterBase::set_meter_strip_name (const char * name)
 575 {
 576         char tmp[256];
 577         meter_metric_area.set_name (name);
 578         sprintf(tmp, "Mark%sLeft", name);
 579         meter_ticks1_area.set_name (tmp);
 580         sprintf(tmp, "Mark%sRight", name);
 581         meter_ticks2_area.set_name (tmp);
 582 }
 583
 584 void
 585 GainMeterBase::set_fader_name (const char * name)
 586 {
 587         gain_slider->set_name (name);
 588 }
 589
 590 void
 591 GainMeterBase::update_gain_sensitive ()
 592 {
 593         bool x = !(_control->alist()->automation_state() & Play);
 594         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 595 }
 596
 597 static MeterPoint
 598 next_meter_point (MeterPoint mp)
 599 {
 600         switch (mp) {
 601         case MeterInput:
 602                 return MeterPreFader;
 603                 break;
 604
 605         case MeterPreFader:
 606                 return MeterPostFader;
 607                 break;
 608
 609         case MeterPostFader:
 610                 return MeterOutput;
 611                 break;
 612
 613         case MeterOutput:
 614                 return MeterCustom;
 615                 break;
 616
 617         case MeterCustom:
 618                 return MeterInput;
 619                 break;
 620         }
 621
 622         abort(); /*NOTREACHED*/
 623         return MeterInput;
 624 }
 625
 626 gint
 627 GainMeterBase::meter_press(GdkEventButton* ev)
 628 {
 629         wait_for_release = false;
 630
 631         if (!_route) {
 632                 return FALSE;
 633         }
 634
 635         if (!ignore_toggle) {
 636
 637                 if (Keyboard::is_context_menu_event (ev)) {
 638
 639                         // no menu at this time.
 640
 641                 } else {
 642
 643                         if (Keyboard::is_button2_event(ev)) {
 644
 645                                 // Primary-button2 click is the midi binding click
 646                                 // button2-click is "momentary"
 647
 648                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 649                                         wait_for_release = true;
 650                                         old_meter_point = _route->meter_point ();
 651                                 }
 652                         }
 653
 654                         if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
 655
 656                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 657
 658                                         /* Primary+Tertiary-click applies change to all routes */
 659
 660                                         _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
 661
 662
 663                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 664
 665                                         /* Primary-click: solo mix group.
 666                                            NOTE: Primary-button2 is MIDI learn.
 667                                         */
 668
 669                                         if (ev->button == 1) {
 670                                                 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 671                                         }
 672
 673                                 } else {
 674
 675                                         /* click: change just this route */
 676
 677                                         // XXX no undo yet
 678
 679                                         _route->set_meter_point (next_meter_point (_route->meter_point()));
 680                                 }
 681                         }
 682                 }
 683         }
 684
 685         return true;
 686
 687 }
 688
 689 gint
 690 GainMeterBase::meter_release(GdkEventButton*)
 691 {
 692         if (!ignore_toggle) {
 693                 if (wait_for_release) {
 694                         wait_for_release = false;
 695
 696                         if (_route) {
 697                                 set_meter_point (*_route, old_meter_point);
 698                         }
 699                 }
 700         }
 701
 702         return true;
 703 }
 704
 705 void
 706 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 707 {
 708         route.set_meter_point (mp);
 709 }
 710
 711 void
 712 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 713 {
 714         RouteGroup* route_group;
 715
 716         if ((route_group = route.route_group ()) != 0) {
 717                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 718         } else {
 719                 route.set_meter_point (mp);
 720         }
 721 }
 722
 723 void
 724 GainMeterBase::meter_point_clicked ()
 725 {
 726         if (_route) {
 727                 /* WHAT? */
 728         }
 729 }
 730
 731 void
 732 GainMeterBase::amp_start_touch ()
 733 {
 734         _control->start_touch (_amp->session().transport_frame());
 735 }
 736
 737 void
 738 GainMeterBase::amp_stop_touch ()
 739 {
 740         _control->stop_touch (false, _amp->session().transport_frame());
 741 }
 742
 743 gint
 744 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 745 {
 746         if (ev->type == GDK_BUTTON_RELEASE) {
 747                 return TRUE;
 748         }
 749
 750         switch (ev->button) {
 751                 case 1:
 752                         gain_astate_menu.popup (1, ev->time);
 753                         break;
 754                 default:
 755                         break;
 756         }
 757
 758         return TRUE;
 759 }
 760
 761 gint
 762 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 763 {
 764         if (ev->type == GDK_BUTTON_RELEASE) {
 765                 return TRUE;
 766         }
 767
 768         switch (ev->button) {
 769         case 1:
 770                 gain_astyle_menu.popup (1, ev->time);
 771                 break;
 772         default:
 773                 break;
 774         }
 775         return TRUE;
 776 }
 777
 778 string
 779 GainMeterBase::astate_string (AutoState state)
 780 {
 781         return _astate_string (state, false);
 782 }
 783
 784 string
 785 GainMeterBase::short_astate_string (AutoState state)
 786 {
 787         return _astate_string (state, true);
 788 }
 789
 790 string
 791 GainMeterBase::_astate_string (AutoState state, bool shrt)
 792 {
 793         string sstr;
 794
 795         switch (state) {
 796         case ARDOUR::Off:
 797                 sstr = (shrt ? "M" : _("M"));
 798                 break;
 799         case Play:
 800                 sstr = (shrt ? "P" : _("P"));
 801                 break;
 802         case Touch:
 803                 sstr = (shrt ? "T" : _("T"));
 804                 break;
 805         case Write:
 806                 sstr = (shrt ? "W" : _("W"));
 807                 break;
 808         }
 809
 810         return sstr;
 811 }
 812
 813 string
 814 GainMeterBase::astyle_string (AutoStyle style)
 815 {
 816         return _astyle_string (style, false);
 817 }
 818
 819 string
 820 GainMeterBase::short_astyle_string (AutoStyle style)
 821 {
 822         return _astyle_string (style, true);
 823 }
 824
 825 string
 826 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 827 {
 828         if (style & Trim) {
 829                 return _("Trim");
 830         } else {
 831                 /* XXX it might different in different languages */
 832
 833                 return (shrt ? _("Abs") : _("Abs"));
 834         }
 835 }
 836
 837 void
 838 GainMeterBase::gain_automation_style_changed ()
 839 {
 840         switch (_width) {
 841         case Wide:
 842                 gain_automation_style_button.set_text (astyle_string(_control->alist()->automation_style()));
 843                 break;
 844         case Narrow:
 845                 gain_automation_style_button.set_text  (short_astyle_string(_control->alist()->automation_style()));
 846                 break;
 847         }
 848 }
 849
 850 void
 851 GainMeterBase::gain_automation_state_changed ()
 852 {
 853         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed);
 854
 855         switch (_width) {
 856         case Wide:
 857                 gain_automation_state_button.set_text (astate_string(_control->alist()->automation_state()));
 858                 break;
 859         case Narrow:
 860                 gain_automation_state_button.set_text (short_astate_string(_control->alist()->automation_state()));
 861                 break;
 862         }
 863
 864         const bool automation_watch_required = (_control->alist()->automation_state() != ARDOUR::Off);
 865
 866         if (gain_automation_state_button.get_active() != automation_watch_required) {
 867                 ignore_toggle = true;
 868                 gain_automation_state_button.set_active (automation_watch_required);
 869                 ignore_toggle = false;
 870         }
 871
 872         update_gain_sensitive ();
 873
 874         gain_watching.disconnect();
 875
 876         if (automation_watch_required) {
 877                 /* start watching automation so that things move */
 878                 gain_watching = Timers::rapid_connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 879         } else {
 880                 /* update once to get the correct value shown as we re-enter off/manual mode */
 881                 effective_gain_display();
 882         }
 883 }
 884
 885 const ChanCount
 886 GainMeterBase::meter_channels() const
 887 {
 888                 if (_meter) { return _meter->input_streams(); }
 889                 else { return ChanCount(); }
 890 }
 891 void
 892 GainMeterBase::update_meters()
 893 {
 894         char buf[32];
 895         float mpeak = level_meter->update_meters();
 896
 897         if (mpeak > max_peak) {
 898                 max_peak = mpeak;
 899                 if (mpeak <= -200.0f) {
 900                         peak_display.set_text (_("-inf"));
 901                 } else {
 902                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 903                         peak_display.set_text (buf);
 904                 }
 905         }
 906         if (mpeak >= UIConfiguration::instance().get_meter_peak()) {
 907                 peak_display.set_name ("MixerStripPeakDisplayPeak");
 908         }
 909 }
 910
 911 void GainMeterBase::color_handler(bool /*dpi*/)
 912 {
 913         setup_meters();
 914 }
 915
 916 void
 917 GainMeterBase::set_width (Width w, int len)
 918 {
 919         _width = w;
 920         int meter_width = 5;
 921         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 922                 meter_width = 10;
 923         }
 924         level_meter->setup_meters(len, meter_width);
 925 }
 926
 927
 928 void
 929 GainMeterBase::on_theme_changed()
 930 {
 931 }
 932
 933 void
 934 GainMeterBase::redraw_metrics()
 935 {
 936         meter_metric_area.queue_draw ();
 937         meter_ticks1_area.queue_draw ();
 938         meter_ticks2_area.queue_draw ();
 939 }
 940
 941 #define PX_SCALE(pxmin, dflt) rint(std::max((double)pxmin, (double)dflt * UIConfiguration::instance().get_ui_scale()))
 942
 943 GainMeter::GainMeter (Session* s, int fader_length)
 944         : GainMeterBase (s, false, fader_length, 24)
 945         , gain_display_box(true, 0)
 946         , hbox(true, 2)
 947 {
 948         if (gain_display.get_parent()) {
 949                 gain_display.get_parent()->remove (gain_display);
 950         }
 951         gain_display_box.pack_start (gain_display, true, true);
 952
 953         if (peak_display.get_parent()) {
 954                 peak_display.get_parent()->remove (gain_display);
 955         }
 956         gain_display_box.pack_start (peak_display, true, true);
 957
 958         meter_metric_area.set_name ("AudioTrackMetrics");
 959         meter_metric_area.set_size_request(PX_SCALE(24, 24), -1);
 960
 961         gain_automation_style_button.set_name ("mixer strip button");
 962         gain_automation_state_button.set_name ("mixer strip button");
 963
 964         set_tooltip (gain_automation_state_button, _("Fader automation mode"));
 965         set_tooltip (gain_automation_style_button, _("Fader automation type"));
 966
 967         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 968         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 969
 970         gain_automation_state_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 971         gain_automation_style_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 972
 973         fader_vbox = manage (new Gtk::VBox());
 974         fader_vbox->set_spacing (0);
 975         fader_vbox->pack_start (*gain_slider, true, true);
 976
 977         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 978         fader_alignment.add (*fader_vbox);
 979
 980         hbox.pack_start (fader_alignment, true, true);
 981
 982         set_spacing (PX_SCALE(2, 2));
 983
 984         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 985         pack_start (hbox, Gtk::PACK_SHRINK);
 986
 987         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 988         meter_alignment.add (*level_meter);
 989
 990         meter_metric_area.signal_expose_event().connect (
 991                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 992
 993         meter_ticks1_area.set_size_request (PX_SCALE(3, 3), -1);
 994         meter_ticks2_area.set_size_request (PX_SCALE(3, 3), -1);
 995
 996         meter_ticks1_area.signal_expose_event().connect (
 997                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
 998         meter_ticks2_area.signal_expose_event().connect (
 999                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
1000
1001         meter_hbox.pack_start (meter_ticks1_area, false, false);
1002         meter_hbox.pack_start (meter_alignment, false, false);
1003         meter_hbox.pack_start (meter_ticks2_area, false, false);
1004         meter_hbox.pack_start (meter_metric_area, false, false);
1005 }
1006 #undef PX_SCALE
1007
1008 GainMeter::~GainMeter () { }
1009
1010 void
1011 GainMeter::set_controls (boost::shared_ptr<Route> r,
1012                          boost::shared_ptr<PeakMeter> meter,
1013                          boost::shared_ptr<Amp> amp,
1014                          boost::shared_ptr<GainControl> control)
1015 {
1016         if (meter_hbox.get_parent()) {
1017                 hbox.remove (meter_hbox);
1018         }
1019
1020 //      if (gain_automation_state_button.get_parent()) {
1021 //              fader_vbox->remove (gain_automation_state_button);
1022 //      }
1023
1024         GainMeterBase::set_controls (r, meter, amp, control);
1025
1026         if (_meter) {
1027                 _meter->ConfigurationChanged.connect (
1028                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
1029                         );
1030                 _meter->TypeChanged.connect (
1031                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_type_changed, this, _1), gui_context()
1032                         );
1033
1034                 meter_configuration_changed (_meter->input_streams ());
1035         }
1036
1037
1038         if (_route) {
1039                 _route->active_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::route_active_changed, this), gui_context ());
1040         }
1041
1042         /*
1043            if we have a non-hidden route (ie. we're not the click or the auditioner),
1044            pack some route-dependent stuff.
1045         */
1046
1047         hbox.pack_start (meter_hbox, true, true);
1048
1049 //      if (r && !r->is_auditioner()) {
1050 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
1051 //      }
1052
1053         hbox.show_all ();
1054         setup_meters ();
1055 }
1056
1057 int
1058 GainMeter::get_gm_width ()
1059 {
1060         Gtk::Requisition sz;
1061         int min_w = 0;
1062         sz.width = 0;
1063         meter_metric_area.size_request (sz);
1064         min_w += sz.width;
1065         level_meter->size_request (sz);
1066         min_w += sz.width;
1067
1068         fader_alignment.size_request (sz);
1069         if (_width == Wide)
1070                 return max(sz.width * 2, min_w * 2) + 6;
1071         else
1072                 return sz.width + min_w + 6;
1073
1074 }
1075
1076 gint
1077 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1078 {
1079         if (!_route) {
1080                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1081                 return meter_expose_metrics(ev, MeterPeak, _types, &meter_metric_area);
1082         }
1083         return meter_expose_metrics(ev, _route->meter_type(), _types, &meter_metric_area);
1084 }
1085
1086 gint
1087 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
1088 {
1089         if (!_route) {
1090                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1091                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks1_area);
1092         }
1093         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks1_area);
1094 }
1095
1096 gint
1097 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1098 {
1099         if (!_route) {
1100                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1101                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks2_area);
1102         }
1103         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks2_area);
1104 }
1105
1106 void
1107 GainMeter::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
1108 {
1109         gain_display.queue_draw();
1110         peak_display.queue_draw();
1111 }
1112
1113 boost::shared_ptr<PBD::Controllable>
1114 GainMeterBase::get_controllable()
1115 {
1116         if (_amp) {
1117                 return _control;
1118         } else {
1119                 return boost::shared_ptr<PBD::Controllable>();
1120         }
1121 }
1122
1123 bool
1124 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1125 {
1126         return static_cast<bool>(LevelMeterButtonPress (ev)); /* EMIT SIGNAL */
1127 }
1128
1129 void
1130 GainMeter::meter_configuration_changed (ChanCount c)
1131 {
1132         int type = 0;
1133         _types.clear ();
1134
1135         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1136                 if (c.get (*i) > 0) {
1137                         _types.push_back (*i);
1138                         type |= 1 << (*i);
1139                 }
1140         }
1141
1142         if (_route
1143                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1144                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1145                         ) {
1146                 if (_route->active()) {
1147                         set_meter_strip_name ("AudioBusMetrics");
1148                 } else {
1149                         set_meter_strip_name ("AudioBusMetricsInactive");
1150                 }
1151         }
1152         else if (
1153                            (type == (1 << DataType::MIDI))
1154                         || (_route && boost::dynamic_pointer_cast<MidiTrack>(_route))
1155                         ) {
1156                 if (!_route || _route->active()) {
1157                         set_meter_strip_name ("MidiTrackMetrics");
1158                 } else {
1159                         set_meter_strip_name ("MidiTrackMetricsInactive");
1160                 }
1161         }
1162         else if (type == (1 << DataType::AUDIO)) {
1163                 if (!_route || _route->active()) {
1164                         set_meter_strip_name ("AudioTrackMetrics");
1165                 } else {
1166                         set_meter_strip_name ("AudioTrackMetricsInactive");
1167                 }
1168         } else {
1169                 if (!_route || _route->active()) {
1170                         set_meter_strip_name ("AudioMidiTrackMetrics");
1171                 } else {
1172                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1173                 }
1174         }
1175
1176         setup_meters();
1177         meter_clear_pattern_cache(4);
1178         on_style_changed(Glib::RefPtr<Gtk::Style>());
1179 }
1180
1181 void
1182 GainMeter::route_active_changed ()
1183 {
1184         if (_meter) {
1185                 meter_configuration_changed (_meter->input_streams ());
1186         }
1187 }
1188
1189 void
1190 GainMeter::meter_type_changed (MeterType t)
1191 {
1192         _route->set_meter_type(t);
1193         RedrawMetrics();
1194 }