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 "global_signals.h"
  40 #include "logmeter.h"
  41 #include "gui_thread.h"
  42 #include "keyboard.h"
  43 #include "public_editor.h"
  44 #include "utils.h"
  45 #include "meter_patterns.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
  53 #include "i18n.h"
  54
  55 using namespace ARDOUR;
  56 using namespace ARDOUR_UI_UTILS;
  57 using namespace PBD;
  58 using namespace Gtkmm2ext;
  59 using namespace Gtk;
  60 using namespace std;
  61 using Gtkmm2ext::Keyboard;
  62 using namespace ArdourMeter;
  63
  64 GainMeterBase::GainMeterBase (Session* s, bool horizontal, int fader_length, int fader_girth)
  65         : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()), 0.0, 1.0, 0.01, 0.1)
  66         , gain_automation_style_button ("")
  67         , gain_automation_state_button ("")
  68         , _data_type (DataType::AUDIO)
  69
  70 {
  71         using namespace Menu_Helpers;
  72
  73         set_session (s);
  74
  75         ignore_toggle = false;
  76         meter_menu = 0;
  77         next_release_selects = false;
  78         _width = Wide;
  79
  80         if (horizontal) {
  81                 gain_slider = manage (new HSliderController (&gain_adjustment, fader_length, fader_girth));
  82         } else {
  83                 gain_slider = manage (new VSliderController (&gain_adjustment, fader_length, fader_girth));
  84         }
  85
  86         level_meter = new LevelMeterHBox(_session);
  87
  88         level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
  89         meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
  90         meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
  91
  92         gain_slider->signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_press), false);
  93         gain_slider->signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_release), false);
  94         gain_slider->set_name ("GainFader");
  95
  96         gain_display.set_name ("MixerStripGainDisplay");
  97         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
  98         gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
  99         gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 100         gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 101         gain_display.set_alignment(0.5);
 102
 103         peak_display.set_name ("MixerStripPeakDisplay");
 104         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 105         max_peak = minus_infinity();
 106         peak_display.set_text (_("-inf"));
 107         peak_display.unset_flags (Gtk::CAN_FOCUS);
 108         peak_display.set_alignment(0.5);
 109
 110         gain_automation_style_button.set_name ("mixer strip button");
 111         gain_automation_state_button.set_name ("mixer strip button");
 112
 113         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 114         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 115
 116         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 117         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 118
 119         gain_automation_state_button.set_size_request(15, 15);
 120         gain_automation_style_button.set_size_request(15, 15);
 121
 122         gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 123         gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 124
 125         gain_astate_menu.set_name ("ArdourContextMenu");
 126         gain_astyle_menu.set_name ("ArdourContextMenu");
 127
 128         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted));
 129         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 130         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 131
 132         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 133         ResetRoutePeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_route_peak_display));
 134         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 135         RedrawMetrics.connect (sigc::mem_fun(*this, &GainMeterBase::redraw_metrics));
 136
 137         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 138         ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 139         DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 140 }
 141
 142 GainMeterBase::~GainMeterBase ()
 143 {
 144         delete meter_menu;
 145         delete level_meter;
 146 }
 147
 148 void
 149 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 150                              boost::shared_ptr<PeakMeter> pm,
 151                              boost::shared_ptr<Amp> amp)
 152 {
 153         connections.clear ();
 154         model_connections.drop_connections ();
 155
 156         if (!pm && !amp) {
 157                 level_meter->set_meter (0);
 158                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 159                 _meter.reset ();
 160                 _amp.reset ();
 161                 _route.reset ();
 162                 return;
 163         }
 164
 165         _meter = pm;
 166         _amp = amp;
 167         _route = r;
 168
 169         level_meter->set_meter (pm.get());
 170         gain_slider->set_controllable (amp->gain_control());
 171
 172         if (amp) {
 173                 amp->ConfigurationChanged.connect (
 174                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 175                         );
 176         }
 177
 178         setup_gain_adjustment ();
 179
 180         if (!_route || !_route->is_auditioner()) {
 181
 182                 using namespace Menu_Helpers;
 183
 184                 gain_astate_menu.items().clear ();
 185
 186                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 187                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 188                                                                           Evoral::Parameter(GainAutomation), (AutoState) ARDOUR::Off)));
 189                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 190                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 191                                                                     Evoral::Parameter(GainAutomation), (AutoState) Play)));
 192                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 193                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 194                                                                     Evoral::Parameter(GainAutomation), (AutoState) Write)));
 195                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 196                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 197                                                                     Evoral::Parameter(GainAutomation), (AutoState) Touch)));
 198
 199                 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
 200                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 201
 202                 boost::shared_ptr<AutomationControl> gc = amp->gain_control();
 203
 204                 gc->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 205                 gc->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
 206
 207                 gain_automation_state_changed ();
 208         }
 209
 210         amp->gain_control()->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 211
 212         gain_changed ();
 213         show_gain ();
 214         update_gain_sensitive ();
 215 }
 216
 217 void
 218 GainMeterBase::setup_gain_adjustment ()
 219 {
 220         if (!_amp) {
 221                 return;
 222         }
 223
 224         if (_previous_amp_output_streams == _amp->output_streams ()) {
 225                 return;
 226         }
 227
 228         ignore_toggle = true;
 229
 230         if (_amp->output_streams().n_midi() <=  _amp->output_streams().n_audio()) {
 231                 _data_type = DataType::AUDIO;
 232                 gain_adjustment.set_lower (0.0);
 233                 gain_adjustment.set_upper (1.0);
 234                 gain_adjustment.set_step_increment (0.01);
 235                 gain_adjustment.set_page_increment (0.1);
 236                 gain_slider->set_default_value (gain_to_slider_position (1));
 237         } else {
 238                 _data_type = DataType::MIDI;
 239                 gain_adjustment.set_lower (0.0);
 240                 gain_adjustment.set_upper (2.0);
 241                 gain_adjustment.set_step_increment (1.0/128.0);
 242                 gain_adjustment.set_page_increment (10.0/128.0);
 243                 gain_slider->set_default_value (1.0);
 244         }
 245
 246         ignore_toggle = false;
 247
 248         effective_gain_display ();
 249
 250         _previous_amp_output_streams = _amp->output_streams ();
 251 }
 252
 253 void
 254 GainMeterBase::hide_all_meters ()
 255 {
 256         level_meter->hide_meters();
 257 }
 258
 259 void
 260 GainMeter::hide_all_meters ()
 261 {
 262         GainMeterBase::hide_all_meters ();
 263 }
 264
 265 void
 266 GainMeterBase::setup_meters (int len)
 267 {
 268         int meter_width = 5;
 269         uint32_t meter_channels = 0;
 270         if (_meter) {
 271                 meter_channels = _meter->input_streams().n_total();
 272         } else if (_route) {
 273                 meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 274         }
 275
 276         switch (_width) {
 277                 case Wide:
 278                         //meter_ticks1_area.show();
 279                         //meter_ticks2_area.show();
 280                         meter_metric_area.show();
 281                         if (meter_channels == 1) {
 282                                 meter_width = 10;
 283                         }
 284                         break;
 285                 case Narrow:
 286                         if (meter_channels > 1) {
 287                                 meter_width = 4;
 288                         }
 289                         //meter_ticks1_area.hide();
 290                         //meter_ticks2_area.hide();
 291                         meter_metric_area.hide();
 292                         break;
 293         }
 294         level_meter->setup_meters(len, meter_width);
 295 }
 296
 297 void
 298 GainMeterBase::set_type (MeterType t)
 299 {
 300         level_meter->set_type(t);
 301 }
 302
 303 void
 304 GainMeter::setup_meters (int len)
 305 {
 306         switch (_width) {
 307                 case Wide:
 308                         {
 309                                 uint32_t meter_channels = 0;
 310                                 if (_meter) {
 311                                         meter_channels = _meter->input_streams().n_total();
 312                                 } else if (_route) {
 313                                         meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 314                                 }
 315                                 hbox.set_homogeneous(meter_channels < 7 ? true : false);
 316                         }
 317                         break;
 318                 case Narrow:
 319                         hbox.set_homogeneous(false);
 320                         break;
 321         }
 322         GainMeterBase::setup_meters (len);
 323 }
 324
 325 void
 326 GainMeter::set_type (MeterType t)
 327 {
 328         GainMeterBase::set_type (t);
 329 }
 330
 331 bool
 332 GainMeterBase::gain_key_press (GdkEventKey* ev)
 333 {
 334         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 335                 /* drop through to normal handling */
 336                 return false;
 337         }
 338         /* illegal key for gain entry */
 339         return true;
 340 }
 341
 342 bool
 343 GainMeterBase::peak_button_release (GdkEventButton* ev)
 344 {
 345         /* reset peak label */
 346
 347         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 348                 ResetAllPeakDisplays ();
 349         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 350                 if (_route) {
 351                         ResetGroupPeakDisplays (_route->route_group());
 352                 }
 353         } else {
 354                 ResetRoutePeakDisplays (_route.get());
 355         }
 356
 357         return true;
 358 }
 359
 360 void
 361 GainMeterBase::reset_peak_display ()
 362 {
 363         _meter->reset_max();
 364         level_meter->clear_meters();
 365         max_peak = -INFINITY;
 366         peak_display.set_text (_("-inf"));
 367         peak_display.set_name ("MixerStripPeakDisplay");
 368 }
 369
 370 void
 371 GainMeterBase::reset_route_peak_display (Route* route)
 372 {
 373         if (_route && _route.get() == route) {
 374                 reset_peak_display ();
 375         }
 376 }
 377
 378 void
 379 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 380 {
 381         if (_route && group == _route->route_group()) {
 382                 reset_peak_display ();
 383         }
 384 }
 385
 386 void
 387 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 388 {
 389         using namespace Menu_Helpers;
 390
 391         if (meter_menu == 0) {
 392                 meter_menu = new Gtk::Menu;
 393                 MenuList& items = meter_menu->items();
 394
 395                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 396                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 397                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 398                 items.push_back (SeparatorElem());
 399                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 400                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 401                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 402         }
 403
 404         meter_menu->popup (1, ev->time);
 405 }
 406
 407 bool
 408 GainMeterBase::gain_focused (GdkEventFocus* ev)
 409 {
 410         if (ev->in) {
 411                 gain_display.select_region (0, -1);
 412         } else {
 413                 gain_display.select_region (0, 0);
 414         }
 415         return false;
 416 }
 417
 418 void
 419 GainMeterBase::gain_activated ()
 420 {
 421         float f;
 422
 423         {
 424                 // Switch to user's preferred locale so that
 425                 // if they use different LC_NUMERIC conventions,
 426                 // we will honor them.
 427
 428                 PBD::LocaleGuard lg ("");
 429                 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 430                         return;
 431                 }
 432         }
 433
 434         /* clamp to displayable values */
 435         if (_data_type == DataType::AUDIO) {
 436                 f = min (f, 6.0f);
 437                 _amp->set_gain (dB_to_coefficient(f), this);
 438         } else {
 439                 f = min (fabs (f), 2.0f);
 440                 _amp->set_gain (f, this);
 441         }
 442
 443         if (gain_display.has_focus()) {
 444                 Gtk::Widget* w = gain_display.get_toplevel();
 445                 if (w) {
 446                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 447
 448                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 449
 450                         if (win) {
 451                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 452                                 if (f) {
 453                                         gtk_widget_grab_focus (f);
 454                                         return;
 455                                 }
 456                         }
 457                 }
 458         }
 459 }
 460
 461 void
 462 GainMeterBase::show_gain ()
 463 {
 464         char buf[32];
 465
 466         float v = gain_adjustment.get_value();
 467
 468         switch (_data_type) {
 469         case DataType::AUDIO:
 470                 if (v == 0.0) {
 471                         strcpy (buf, _("-inf"));
 472                 } else {
 473                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 474                 }
 475                 break;
 476         case DataType::MIDI:
 477                 snprintf (buf, sizeof (buf), "%.1f", v);
 478                 break;
 479         }
 480
 481         gain_display.set_text (buf);
 482 }
 483
 484 void
 485 GainMeterBase::gain_adjusted ()
 486 {
 487         gain_t value;
 488
 489         /* convert from adjustment range (0..1) to gain coefficient */
 490
 491         if (_data_type == DataType::AUDIO) {
 492                 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 493         } else {
 494                 value = gain_adjustment.get_value();
 495         }
 496
 497         if (!ignore_toggle) {
 498                 if (_route && _route->amp() == _amp) {
 499                         _route->set_gain (value, this);
 500                 } else {
 501                         _amp->set_gain (value, this);
 502                 }
 503         }
 504
 505         show_gain ();
 506 }
 507
 508 void
 509 GainMeterBase::effective_gain_display ()
 510 {
 511         float value = 0.0;
 512
 513         switch (_data_type) {
 514         case DataType::AUDIO:
 515                 value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
 516                 break;
 517         case DataType::MIDI:
 518                 value = _amp->gain ();
 519                 break;
 520         }
 521
 522         if (gain_adjustment.get_value() != value) {
 523                 ignore_toggle = true;
 524                 gain_adjustment.set_value (value);
 525                 ignore_toggle = false;
 526         }
 527 }
 528
 529 void
 530 GainMeterBase::gain_changed ()
 531 {
 532         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 533 }
 534
 535 void
 536 GainMeterBase::set_meter_strip_name (const char * name)
 537 {
 538         char tmp[256];
 539         meter_metric_area.set_name (name);
 540         sprintf(tmp, "Mark%sLeft", name);
 541         meter_ticks1_area.set_name (tmp);
 542         sprintf(tmp, "Mark%sRight", name);
 543         meter_ticks2_area.set_name (tmp);
 544 }
 545
 546 void
 547 GainMeterBase::set_fader_name (const char * name)
 548 {
 549         gain_slider->set_name (name);
 550 }
 551
 552 void
 553 GainMeterBase::update_gain_sensitive ()
 554 {
 555         bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
 556         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 557 }
 558
 559 static MeterPoint
 560 next_meter_point (MeterPoint mp)
 561 {
 562         switch (mp) {
 563         case MeterInput:
 564                 return MeterPreFader;
 565                 break;
 566
 567         case MeterPreFader:
 568                 return MeterPostFader;
 569                 break;
 570
 571         case MeterPostFader:
 572                 return MeterOutput;
 573                 break;
 574
 575         case MeterOutput:
 576                 return MeterCustom;
 577                 break;
 578
 579         case MeterCustom:
 580                 return MeterInput;
 581                 break;
 582         }
 583
 584         /*NOTREACHED*/
 585         return MeterInput;
 586 }
 587
 588 gint
 589 GainMeterBase::meter_press(GdkEventButton* ev)
 590 {
 591         wait_for_release = false;
 592
 593         if (!_route) {
 594                 return FALSE;
 595         }
 596
 597         if (!ignore_toggle) {
 598
 599                 if (Keyboard::is_context_menu_event (ev)) {
 600
 601                         // no menu at this time.
 602
 603                 } else {
 604
 605                         if (Keyboard::is_button2_event(ev)) {
 606
 607                                 // Primary-button2 click is the midi binding click
 608                                 // button2-click is "momentary"
 609
 610                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 611                                         wait_for_release = true;
 612                                         old_meter_point = _route->meter_point ();
 613                                 }
 614                         }
 615
 616                         if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
 617
 618                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 619
 620                                         /* Primary+Tertiary-click applies change to all routes */
 621
 622                                         _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
 623
 624
 625                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 626
 627                                         /* Primary-click: solo mix group.
 628                                            NOTE: Primary-button2 is MIDI learn.
 629                                         */
 630
 631                                         if (ev->button == 1) {
 632                                                 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 633                                         }
 634
 635                                 } else {
 636
 637                                         /* click: change just this route */
 638
 639                                         // XXX no undo yet
 640
 641                                         _route->set_meter_point (next_meter_point (_route->meter_point()));
 642                                 }
 643                         }
 644                 }
 645         }
 646
 647         return true;
 648
 649 }
 650
 651 gint
 652 GainMeterBase::meter_release(GdkEventButton*)
 653 {
 654         if (!ignore_toggle) {
 655                 if (wait_for_release) {
 656                         wait_for_release = false;
 657
 658                         if (_route) {
 659                                 set_meter_point (*_route, old_meter_point);
 660                         }
 661                 }
 662         }
 663
 664         return true;
 665 }
 666
 667 void
 668 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 669 {
 670         route.set_meter_point (mp);
 671 }
 672
 673 void
 674 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 675 {
 676         RouteGroup* route_group;
 677
 678         if ((route_group = route.route_group ()) != 0) {
 679                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 680         } else {
 681                 route.set_meter_point (mp);
 682         }
 683 }
 684
 685 void
 686 GainMeterBase::meter_point_clicked ()
 687 {
 688         if (_route) {
 689                 /* WHAT? */
 690         }
 691 }
 692
 693 bool
 694 GainMeterBase::gain_slider_button_press (GdkEventButton* ev)
 695 {
 696         switch (ev->type) {
 697         case GDK_BUTTON_PRESS:
 698                 _amp->gain_control()->start_touch (_amp->session().transport_frame());
 699                 break;
 700         default:
 701                 return false;
 702         }
 703
 704         return false;
 705 }
 706
 707 bool
 708 GainMeterBase::gain_slider_button_release (GdkEventButton*)
 709 {
 710         _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
 711         return false;
 712 }
 713
 714 gint
 715 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 716 {
 717         if (ev->type == GDK_BUTTON_RELEASE) {
 718                 return TRUE;
 719         }
 720
 721         switch (ev->button) {
 722                 case 1:
 723                         gain_astate_menu.popup (1, ev->time);
 724                         break;
 725                 default:
 726                         break;
 727         }
 728
 729         return TRUE;
 730 }
 731
 732 gint
 733 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 734 {
 735         if (ev->type == GDK_BUTTON_RELEASE) {
 736                 return TRUE;
 737         }
 738
 739         switch (ev->button) {
 740         case 1:
 741                 gain_astyle_menu.popup (1, ev->time);
 742                 break;
 743         default:
 744                 break;
 745         }
 746         return TRUE;
 747 }
 748
 749 string
 750 GainMeterBase::astate_string (AutoState state)
 751 {
 752         return _astate_string (state, false);
 753 }
 754
 755 string
 756 GainMeterBase::short_astate_string (AutoState state)
 757 {
 758         return _astate_string (state, true);
 759 }
 760
 761 string
 762 GainMeterBase::_astate_string (AutoState state, bool shrt)
 763 {
 764         string sstr;
 765
 766         switch (state) {
 767         case ARDOUR::Off:
 768                 sstr = (shrt ? "M" : _("M"));
 769                 break;
 770         case Play:
 771                 sstr = (shrt ? "P" : _("P"));
 772                 break;
 773         case Touch:
 774                 sstr = (shrt ? "T" : _("T"));
 775                 break;
 776         case Write:
 777                 sstr = (shrt ? "W" : _("W"));
 778                 break;
 779         }
 780
 781         return sstr;
 782 }
 783
 784 string
 785 GainMeterBase::astyle_string (AutoStyle style)
 786 {
 787         return _astyle_string (style, false);
 788 }
 789
 790 string
 791 GainMeterBase::short_astyle_string (AutoStyle style)
 792 {
 793         return _astyle_string (style, true);
 794 }
 795
 796 string
 797 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 798 {
 799         if (style & Trim) {
 800                 return _("Trim");
 801         } else {
 802                 /* XXX it might different in different languages */
 803
 804                 return (shrt ? _("Abs") : _("Abs"));
 805         }
 806 }
 807
 808 void
 809 GainMeterBase::gain_automation_style_changed ()
 810 {
 811         switch (_width) {
 812         case Wide:
 813                 gain_automation_style_button.set_text (astyle_string(_amp->gain_control()->alist()->automation_style()));
 814                 break;
 815         case Narrow:
 816                 gain_automation_style_button.set_text  (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
 817                 break;
 818         }
 819 }
 820
 821 void
 822 GainMeterBase::gain_automation_state_changed ()
 823 {
 824         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
 825
 826         bool x;
 827
 828         switch (_width) {
 829         case Wide:
 830                 gain_automation_state_button.set_text (astate_string(_amp->gain_control()->alist()->automation_state()));
 831                 break;
 832         case Narrow:
 833                 gain_automation_state_button.set_text (short_astate_string(_amp->gain_control()->alist()->automation_state()));
 834                 break;
 835         }
 836
 837         x = (_amp->gain_control()->alist()->automation_state() != ARDOUR::Off);
 838
 839         if (gain_automation_state_button.get_active() != x) {
 840                 ignore_toggle = true;
 841                 gain_automation_state_button.set_active (x);
 842                 ignore_toggle = false;
 843         }
 844
 845         update_gain_sensitive ();
 846
 847         /* start watching automation so that things move */
 848
 849         gain_watching.disconnect();
 850
 851         if (x) {
 852                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 853         }
 854 }
 855
 856 void
 857 GainMeterBase::update_meters()
 858 {
 859         char buf[32];
 860         float mpeak = level_meter->update_meters();
 861
 862         if (mpeak > max_peak) {
 863                 max_peak = mpeak;
 864                 if (mpeak <= -200.0f) {
 865                         peak_display.set_text (_("-inf"));
 866                 } else {
 867                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 868                         peak_display.set_text (buf);
 869                 }
 870         }
 871         if (mpeak >= Config->get_meter_peak()) {
 872                 peak_display.set_name ("MixerStripPeakDisplayPeak");
 873         }
 874 }
 875
 876 void GainMeterBase::color_handler(bool /*dpi*/)
 877 {
 878         setup_meters();
 879 }
 880
 881 void
 882 GainMeterBase::set_width (Width w, int len)
 883 {
 884         _width = w;
 885         int meter_width = 5;
 886         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 887                 meter_width = 10;
 888         }
 889         level_meter->setup_meters(len, meter_width);
 890 }
 891
 892
 893 void
 894 GainMeterBase::on_theme_changed()
 895 {
 896 }
 897
 898 void
 899 GainMeterBase::redraw_metrics()
 900 {
 901         meter_metric_area.queue_draw ();
 902         meter_ticks1_area.queue_draw ();
 903         meter_ticks2_area.queue_draw ();
 904 }
 905
 906 GainMeter::GainMeter (Session* s, int fader_length)
 907         : GainMeterBase (s, false, fader_length, 24)
 908         , gain_display_box(true, 0)
 909         , hbox(true, 2)
 910 {
 911         if (gain_display.get_parent()) {
 912                 gain_display.get_parent()->remove (gain_display);
 913         }
 914         gain_display_box.pack_start (gain_display, true, true);
 915
 916         if (peak_display.get_parent()) {
 917                 peak_display.get_parent()->remove (gain_display);
 918         }
 919         gain_display_box.pack_start (peak_display, true, true);
 920
 921         meter_metric_area.set_name ("AudioTrackMetrics");
 922         meter_metric_area.set_size_request(24, -1);
 923
 924         gain_automation_style_button.set_name ("mixer strip button");
 925         gain_automation_state_button.set_name ("mixer strip button");
 926
 927         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 928         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 929
 930         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 931         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 932
 933         gain_automation_state_button.set_size_request(15, 15);
 934         gain_automation_style_button.set_size_request(15, 15);
 935
 936         fader_vbox = manage (new Gtk::VBox());
 937         fader_vbox->set_spacing (0);
 938         fader_vbox->pack_start (*gain_slider, true, true);
 939
 940         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 941         fader_alignment.add (*fader_vbox);
 942
 943         hbox.pack_start (fader_alignment, true, true);
 944
 945         set_spacing (2);
 946
 947         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 948         pack_start (hbox, Gtk::PACK_SHRINK);
 949
 950         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 951         meter_alignment.add (*level_meter);
 952
 953         meter_metric_area.signal_expose_event().connect (
 954                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 955
 956         meter_ticks1_area.set_size_request(3,-1);
 957         meter_ticks2_area.set_size_request(3,-1);
 958
 959         meter_ticks1_area.signal_expose_event().connect (
 960                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
 961         meter_ticks2_area.signal_expose_event().connect (
 962                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
 963
 964         meter_hbox.pack_start (meter_ticks1_area, false, false);
 965         meter_hbox.pack_start (meter_alignment, false, false);
 966         meter_hbox.pack_start (meter_ticks2_area, false, false);
 967         meter_hbox.pack_start (meter_metric_area, false, false);
 968 }
 969
 970 GainMeter::~GainMeter () { }
 971
 972 void
 973 GainMeter::set_controls (boost::shared_ptr<Route> r,
 974                          boost::shared_ptr<PeakMeter> meter,
 975                          boost::shared_ptr<Amp> amp)
 976 {
 977         if (meter_hbox.get_parent()) {
 978                 hbox.remove (meter_hbox);
 979         }
 980
 981 //      if (gain_automation_state_button.get_parent()) {
 982 //              fader_vbox->remove (gain_automation_state_button);
 983 //      }
 984
 985         GainMeterBase::set_controls (r, meter, amp);
 986
 987         if (_meter) {
 988                 _meter->ConfigurationChanged.connect (
 989                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
 990                         );
 991                 _meter->TypeChanged.connect (
 992                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_type_changed, this, _1), gui_context()
 993                         );
 994
 995                 meter_configuration_changed (_meter->input_streams ());
 996         }
 997
 998
 999         if (_route) {
1000                 _route->active_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::route_active_changed, this), gui_context ());
1001         }
1002
1003         /*
1004            if we have a non-hidden route (ie. we're not the click or the auditioner),
1005            pack some route-dependent stuff.
1006         */
1007
1008         hbox.pack_start (meter_hbox, true, true);
1009
1010 //      if (r && !r->is_auditioner()) {
1011 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
1012 //      }
1013
1014         hbox.show_all ();
1015         setup_meters ();
1016 }
1017
1018 int
1019 GainMeter::get_gm_width ()
1020 {
1021         Gtk::Requisition sz;
1022         int min_w = 0;
1023         sz.width = 0;
1024         meter_metric_area.size_request (sz);
1025         min_w += sz.width;
1026         level_meter->size_request (sz);
1027         min_w += sz.width;
1028
1029         fader_alignment.size_request (sz);
1030         if (_width == Wide)
1031                 return max(sz.width * 2, min_w * 2) + 6;
1032         else
1033                 return sz.width + min_w + 6;
1034
1035 }
1036
1037 gint
1038 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1039 {
1040         if (!_route) {
1041                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1042                 return meter_expose_metrics(ev, MeterPeak, _types, &meter_metric_area);
1043         }
1044         return meter_expose_metrics(ev, _route->meter_type(), _types, &meter_metric_area);
1045 }
1046
1047 gint
1048 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
1049 {
1050         if (!_route) {
1051                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1052                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks1_area);
1053         }
1054         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks1_area);
1055 }
1056
1057 gint
1058 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1059 {
1060         if (!_route) {
1061                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1062                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks2_area);
1063         }
1064         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks2_area);
1065 }
1066
1067 void
1068 GainMeter::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
1069 {
1070         gain_display.queue_draw();
1071         peak_display.queue_draw();
1072 }
1073
1074 boost::shared_ptr<PBD::Controllable>
1075 GainMeterBase::get_controllable()
1076 {
1077         if (_amp) {
1078                 return _amp->gain_control();
1079         } else {
1080                 return boost::shared_ptr<PBD::Controllable>();
1081         }
1082 }
1083
1084 bool
1085 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1086 {
1087         return LevelMeterButtonPress (ev); /* EMIT SIGNAL */
1088 }
1089
1090 void
1091 GainMeter::meter_configuration_changed (ChanCount c)
1092 {
1093         int type = 0;
1094         _types.clear ();
1095
1096         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1097                 if (c.get (*i) > 0) {
1098                         _types.push_back (*i);
1099                         type |= 1 << (*i);
1100                 }
1101         }
1102
1103         if (_route
1104                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1105                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1106                         ) {
1107                 if (_route->active()) {
1108                         set_meter_strip_name ("AudioBusMetrics");
1109                 } else {
1110                         set_meter_strip_name ("AudioBusMetricsInactive");
1111                 }
1112         }
1113         else if (
1114                            (type == (1 << DataType::MIDI))
1115                         || (_route && boost::dynamic_pointer_cast<MidiTrack>(_route))
1116                         ) {
1117                 if (!_route || _route->active()) {
1118                         set_meter_strip_name ("MidiTrackMetrics");
1119                 } else {
1120                         set_meter_strip_name ("MidiTrackMetricsInactive");
1121                 }
1122         }
1123         else if (type == (1 << DataType::AUDIO)) {
1124                 if (!_route || _route->active()) {
1125                         set_meter_strip_name ("AudioTrackMetrics");
1126                 } else {
1127                         set_meter_strip_name ("AudioTrackMetricsInactive");
1128                 }
1129         } else {
1130                 if (!_route || _route->active()) {
1131                         set_meter_strip_name ("AudioMidiTrackMetrics");
1132                 } else {
1133                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1134                 }
1135         }
1136
1137         setup_meters();
1138         meter_clear_pattern_cache(4);
1139         on_style_changed(Glib::RefPtr<Gtk::Style>());
1140 }
1141
1142 void
1143 GainMeter::route_active_changed ()
1144 {
1145         if (_meter) {
1146                 meter_configuration_changed (_meter->input_streams ());
1147         }
1148 }
1149
1150 void
1151 GainMeter::meter_type_changed (MeterType t)
1152 {
1153         _route->set_meter_type(t);
1154         RedrawMetrics();
1155 }