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/barcontroller.h>
  34 #include <gtkmm2ext/gtk_ui.h>
  35 #include "midi++/manager.h"
  36 #include "pbd/fastlog.h"
  37 #include "pbd/stacktrace.h"
  38
  39 #include "ardour_ui.h"
  40 #include "gain_meter.h"
  41 #include "global_signals.h"
  42 #include "logmeter.h"
  43 #include "gui_thread.h"
  44 #include "keyboard.h"
  45 #include "public_editor.h"
  46 #include "utils.h"
  47 #include "meter_patterns.h"
  48
  49 #include "ardour/session.h"
  50 #include "ardour/route.h"
  51 #include "ardour/meter.h"
  52 #include "ardour/audio_track.h"
  53 #include "ardour/midi_track.h"
  54
  55 #include "i18n.h"
  56
  57 using namespace ARDOUR;
  58 using namespace PBD;
  59 using namespace Gtkmm2ext;
  60 using namespace Gtk;
  61 using namespace std;
  62 using Gtkmm2ext::Keyboard;
  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, false));
  82         } else {
  83                 gain_slider = manage (new VSliderController (&gain_adjustment, fader_length, fader_girth, false));
  84         }
  85
  86         level_meter = new LevelMeter(_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
 102         peak_display.set_name ("MixerStripPeakDisplay");
 103         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 104         max_peak = minus_infinity();
 105         peak_display.set_label (_("-inf"));
 106         peak_display.unset_flags (Gtk::CAN_FOCUS);
 107
 108         gain_automation_style_button.set_name ("mixer strip button");
 109         gain_automation_state_button.set_name ("mixer strip button");
 110
 111         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 112         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 113
 114         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 115         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 116
 117         gain_automation_state_button.set_size_request(15, 15);
 118         gain_automation_style_button.set_size_request(15, 15);
 119
 120         gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 121         gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 122
 123         gain_astate_menu.set_name ("ArdourContextMenu");
 124         gain_astyle_menu.set_name ("ArdourContextMenu");
 125
 126         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted));
 127         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 128         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 129
 130         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 131         ResetRoutePeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_route_peak_display));
 132         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 133         RedrawMetrics.connect (sigc::mem_fun(*this, &GainMeterBase::redraw_metrics));
 134
 135         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 136         ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 137         DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 138
 139 //      PBD::ScopedConnection _config_connection;
 140 //      Config->ParameterChanged.connect ( _config_connection, MISSING_INVALIDATOR, boost::bind(&GainMeterBase::set_flat_buttons, this, _1), gui_context() );
 141 }
 142
 143 void
 144 GainMeterBase::set_flat_buttons ()
 145 {
 146 printf("set_flat_butt\n");
 147 //      gain_slider->set_flat_buttons( ARDOUR_UI::config()->flat_buttons.get() );
 148 }
 149
 150 GainMeterBase::~GainMeterBase ()
 151 {
 152         delete meter_menu;
 153         delete level_meter;
 154 }
 155
 156 void
 157 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 158                              boost::shared_ptr<PeakMeter> pm,
 159                              boost::shared_ptr<Amp> amp)
 160 {
 161         connections.clear ();
 162         model_connections.drop_connections ();
 163
 164         if (!pm && !amp) {
 165                 level_meter->set_meter (0);
 166                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 167                 _meter.reset ();
 168                 _amp.reset ();
 169                 _route.reset ();
 170                 return;
 171         }
 172
 173         _meter = pm;
 174         _amp = amp;
 175         _route = r;
 176
 177         level_meter->set_meter (pm.get());
 178         gain_slider->set_controllable (amp->gain_control());
 179
 180         if (amp) {
 181                 amp->ConfigurationChanged.connect (
 182                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 183                         );
 184         }
 185
 186         setup_gain_adjustment ();
 187
 188         if (!_route || !_route->is_auditioner()) {
 189
 190                 using namespace Menu_Helpers;
 191
 192                 gain_astate_menu.items().clear ();
 193
 194                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 195                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 196                                                                           Evoral::Parameter(GainAutomation), (AutoState) ARDOUR::Off)));
 197                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 198                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 199                                                                     Evoral::Parameter(GainAutomation), (AutoState) Play)));
 200                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 201                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 202                                                                     Evoral::Parameter(GainAutomation), (AutoState) Write)));
 203                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 204                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 205                                                                     Evoral::Parameter(GainAutomation), (AutoState) Touch)));
 206
 207                 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
 208                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 209
 210                 boost::shared_ptr<AutomationControl> gc = amp->gain_control();
 211
 212                 gc->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 213                 gc->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
 214
 215                 gain_automation_state_changed ();
 216         }
 217
 218         amp->gain_control()->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 219
 220         gain_changed ();
 221         show_gain ();
 222         update_gain_sensitive ();
 223 }
 224
 225 void
 226 GainMeterBase::setup_gain_adjustment ()
 227 {
 228         if (!_amp) {
 229                 return;
 230         }
 231
 232         if (_previous_amp_output_streams == _amp->output_streams ()) {
 233                 return;
 234         }
 235
 236         ignore_toggle = true;
 237
 238         if (_amp->output_streams().n_midi() <=  _amp->output_streams().n_audio()) {
 239                 _data_type = DataType::AUDIO;
 240                 gain_adjustment.set_lower (0.0);
 241                 gain_adjustment.set_upper (1.0);
 242                 gain_adjustment.set_step_increment (0.01);
 243                 gain_adjustment.set_page_increment (0.1);
 244                 gain_slider->set_default_value (gain_to_slider_position (1));
 245         } else {
 246                 _data_type = DataType::MIDI;
 247                 gain_adjustment.set_lower (0.0);
 248                 gain_adjustment.set_upper (2.0);
 249                 gain_adjustment.set_step_increment (1.0/128.0);
 250                 gain_adjustment.set_page_increment (10.0/128.0);
 251                 gain_slider->set_default_value (1.0);
 252         }
 253
 254         ignore_toggle = false;
 255
 256         effective_gain_display ();
 257
 258         _previous_amp_output_streams = _amp->output_streams ();
 259 }
 260
 261 void
 262 GainMeterBase::hide_all_meters ()
 263 {
 264         level_meter->hide_meters();
 265 }
 266
 267 void
 268 GainMeter::hide_all_meters ()
 269 {
 270         GainMeterBase::hide_all_meters ();
 271 }
 272
 273 void
 274 GainMeterBase::setup_meters (int len)
 275 {
 276         int meter_width = 5;
 277         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 278                 meter_width = 10;
 279         }
 280         level_meter->setup_meters(len, meter_width);
 281
 282         switch (_width) {
 283         case Wide:
 284                 //meter_metric_area.show();
 285                 meter_ticks1_area.show();
 286                 meter_ticks2_area.show();
 287                 break;
 288         case Narrow:
 289                 //meter_metric_area.hide();
 290                 meter_ticks1_area.hide();
 291                 meter_ticks2_area.hide();
 292                 break;
 293         }
 294 }
 295
 296 void
 297 GainMeterBase::set_type (MeterType t)
 298 {
 299         level_meter->set_type(t);
 300 }
 301
 302 void
 303 GainMeter::setup_meters (int len)
 304 {
 305         GainMeterBase::setup_meters (len);
 306 }
 307
 308 void
 309 GainMeter::set_type (MeterType t)
 310 {
 311         GainMeterBase::set_type (t);
 312 }
 313
 314 bool
 315 GainMeterBase::gain_key_press (GdkEventKey* ev)
 316 {
 317         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 318                 /* drop through to normal handling */
 319                 return false;
 320         }
 321         /* illegal key for gain entry */
 322         return true;
 323 }
 324
 325 bool
 326 GainMeterBase::peak_button_release (GdkEventButton* ev)
 327 {
 328         /* reset peak label */
 329
 330         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 331                 ResetAllPeakDisplays ();
 332         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 333                 if (_route) {
 334                         ResetGroupPeakDisplays (_route->route_group());
 335                 }
 336         } else {
 337                 ResetRoutePeakDisplays (_route.get());
 338         }
 339
 340         return true;
 341 }
 342
 343 void
 344 GainMeterBase::reset_peak_display ()
 345 {
 346         _meter->reset_max();
 347         level_meter->clear_meters();
 348         max_peak = -INFINITY;
 349         peak_display.set_label (_("-inf"));
 350         peak_display.set_name ("MixerStripPeakDisplay");
 351 }
 352
 353 void
 354 GainMeterBase::reset_route_peak_display (Route* route)
 355 {
 356         if (_route && _route.get() == route) {
 357                 reset_peak_display ();
 358         }
 359 }
 360
 361 void
 362 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 363 {
 364         if (_route && group == _route->route_group()) {
 365                 reset_peak_display ();
 366         }
 367 }
 368
 369 void
 370 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 371 {
 372         using namespace Menu_Helpers;
 373
 374         if (meter_menu == 0) {
 375                 meter_menu = new Gtk::Menu;
 376                 MenuList& items = meter_menu->items();
 377
 378                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 379                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 380                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 381                 items.push_back (SeparatorElem());
 382                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 383                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 384                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 385         }
 386
 387         meter_menu->popup (1, ev->time);
 388 }
 389
 390 bool
 391 GainMeterBase::gain_focused (GdkEventFocus* ev)
 392 {
 393         if (ev->in) {
 394                 gain_display.select_region (0, -1);
 395         } else {
 396                 gain_display.select_region (0, 0);
 397         }
 398         return false;
 399 }
 400
 401 void
 402 GainMeterBase::gain_activated ()
 403 {
 404         float f;
 405
 406         {
 407                 // Switch to user's preferred locale so that
 408                 // if they use different LC_NUMERIC conventions,
 409                 // we will honor them.
 410
 411                 PBD::LocaleGuard lg ("");
 412                 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 413                         return;
 414                 }
 415         }
 416
 417         /* clamp to displayable values */
 418         if (_data_type == DataType::AUDIO) {
 419                 f = min (f, 6.0f);
 420                 _amp->set_gain (dB_to_coefficient(f), this);
 421         } else {
 422                 f = min (fabs (f), 2.0f);
 423                 _amp->set_gain (f, this);
 424         }
 425
 426         if (gain_display.has_focus()) {
 427                 Gtk::Widget* w = gain_display.get_toplevel();
 428                 if (w) {
 429                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 430
 431                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 432
 433                         if (win) {
 434                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 435                                 if (f) {
 436                                         gtk_widget_grab_focus (f);
 437                                         return;
 438                                 }
 439                         }
 440                 }
 441         }
 442 }
 443
 444 void
 445 GainMeterBase::show_gain ()
 446 {
 447         char buf[32];
 448
 449         float v = gain_adjustment.get_value();
 450
 451         switch (_data_type) {
 452         case DataType::AUDIO:
 453                 if (v == 0.0) {
 454                         strcpy (buf, _("-inf"));
 455                 } else {
 456                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 457                 }
 458                 break;
 459         case DataType::MIDI:
 460                 snprintf (buf, sizeof (buf), "%.1f", v);
 461                 break;
 462         }
 463
 464         gain_display.set_text (buf);
 465 }
 466
 467 void
 468 GainMeterBase::gain_adjusted ()
 469 {
 470         gain_t value;
 471
 472         /* convert from adjustment range (0..1) to gain coefficient */
 473
 474         if (_data_type == DataType::AUDIO) {
 475                 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 476         } else {
 477                 value = gain_adjustment.get_value();
 478         }
 479
 480         if (!ignore_toggle) {
 481                 if (_route && _route->amp() == _amp) {
 482                         _route->set_gain (value, this);
 483                 } else {
 484                         _amp->set_gain (value, this);
 485                 }
 486         }
 487
 488         show_gain ();
 489 }
 490
 491 void
 492 GainMeterBase::effective_gain_display ()
 493 {
 494         float value = 0.0;
 495
 496         switch (_data_type) {
 497         case DataType::AUDIO:
 498                 value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
 499                 break;
 500         case DataType::MIDI:
 501                 value = _amp->gain ();
 502                 break;
 503         }
 504
 505         if (gain_adjustment.get_value() != value) {
 506                 ignore_toggle = true;
 507                 gain_adjustment.set_value (value);
 508                 ignore_toggle = false;
 509         }
 510 }
 511
 512 void
 513 GainMeterBase::gain_changed ()
 514 {
 515         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 516 }
 517
 518 void
 519 GainMeterBase::set_meter_strip_name (const char * name)
 520 {
 521         meter_metric_area.set_name (name);
 522         meter_ticks1_area.set_name (name);
 523         meter_ticks2_area.set_name (name);
 524 }
 525
 526 void
 527 GainMeterBase::set_fader_name (const char * name)
 528 {
 529         gain_slider->set_name (name);
 530 }
 531
 532 void
 533 GainMeterBase::update_gain_sensitive ()
 534 {
 535         bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
 536         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 537 }
 538
 539 static MeterPoint
 540 next_meter_point (MeterPoint mp)
 541 {
 542         switch (mp) {
 543         case MeterInput:
 544                 return MeterPreFader;
 545                 break;
 546
 547         case MeterPreFader:
 548                 return MeterPostFader;
 549                 break;
 550
 551         case MeterPostFader:
 552                 return MeterOutput;
 553                 break;
 554
 555         case MeterOutput:
 556                 return MeterCustom;
 557                 break;
 558
 559         case MeterCustom:
 560                 return MeterInput;
 561                 break;
 562         }
 563
 564         /*NOTREACHED*/
 565         return MeterInput;
 566 }
 567
 568 gint
 569 GainMeterBase::meter_press(GdkEventButton* ev)
 570 {
 571         wait_for_release = false;
 572
 573         if (!_route) {
 574                 return FALSE;
 575         }
 576
 577         if (!ignore_toggle) {
 578
 579                 if (Keyboard::is_context_menu_event (ev)) {
 580
 581                         // no menu at this time.
 582
 583                 } else {
 584
 585                         if (Keyboard::is_button2_event(ev)) {
 586
 587                                 // Primary-button2 click is the midi binding click
 588                                 // button2-click is "momentary"
 589
 590                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 591                                         wait_for_release = true;
 592                                         old_meter_point = _route->meter_point ();
 593                                 }
 594                         }
 595
 596                         if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
 597
 598                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 599
 600                                         /* Primary+Tertiary-click applies change to all routes */
 601
 602                                         _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
 603
 604
 605                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 606
 607                                         /* Primary-click: solo mix group.
 608                                            NOTE: Primary-button2 is MIDI learn.
 609                                         */
 610
 611                                         if (ev->button == 1) {
 612                                                 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 613                                         }
 614
 615                                 } else {
 616
 617                                         /* click: change just this route */
 618
 619                                         // XXX no undo yet
 620
 621                                         _route->set_meter_point (next_meter_point (_route->meter_point()));
 622                                 }
 623                         }
 624                 }
 625         }
 626
 627         return true;
 628
 629 }
 630
 631 gint
 632 GainMeterBase::meter_release(GdkEventButton*)
 633 {
 634         if (!ignore_toggle) {
 635                 if (wait_for_release) {
 636                         wait_for_release = false;
 637
 638                         if (_route) {
 639                                 set_meter_point (*_route, old_meter_point);
 640                         }
 641                 }
 642         }
 643
 644         return true;
 645 }
 646
 647 void
 648 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 649 {
 650         route.set_meter_point (mp);
 651 }
 652
 653 void
 654 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 655 {
 656         RouteGroup* route_group;
 657
 658         if ((route_group = route.route_group ()) != 0) {
 659                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 660         } else {
 661                 route.set_meter_point (mp);
 662         }
 663 }
 664
 665 void
 666 GainMeterBase::meter_point_clicked ()
 667 {
 668         if (_route) {
 669                 /* WHAT? */
 670         }
 671 }
 672
 673 bool
 674 GainMeterBase::gain_slider_button_press (GdkEventButton* ev)
 675 {
 676         switch (ev->type) {
 677         case GDK_BUTTON_PRESS:
 678                 _amp->gain_control()->start_touch (_amp->session().transport_frame());
 679                 break;
 680         default:
 681                 return false;
 682         }
 683
 684         return false;
 685 }
 686
 687 bool
 688 GainMeterBase::gain_slider_button_release (GdkEventButton*)
 689 {
 690         _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
 691         return false;
 692 }
 693
 694 gint
 695 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 696 {
 697         if (ev->type == GDK_BUTTON_RELEASE) {
 698                 return TRUE;
 699         }
 700
 701         switch (ev->button) {
 702                 case 1:
 703                         gain_astate_menu.popup (1, ev->time);
 704                         break;
 705                 default:
 706                         break;
 707         }
 708
 709         return TRUE;
 710 }
 711
 712 gint
 713 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 714 {
 715         if (ev->type == GDK_BUTTON_RELEASE) {
 716                 return TRUE;
 717         }
 718
 719         switch (ev->button) {
 720         case 1:
 721                 gain_astyle_menu.popup (1, ev->time);
 722                 break;
 723         default:
 724                 break;
 725         }
 726         return TRUE;
 727 }
 728
 729 string
 730 GainMeterBase::astate_string (AutoState state)
 731 {
 732         return _astate_string (state, false);
 733 }
 734
 735 string
 736 GainMeterBase::short_astate_string (AutoState state)
 737 {
 738         return _astate_string (state, true);
 739 }
 740
 741 string
 742 GainMeterBase::_astate_string (AutoState state, bool shrt)
 743 {
 744         string sstr;
 745
 746         switch (state) {
 747         case ARDOUR::Off:
 748                 sstr = (shrt ? "M" : _("M"));
 749                 break;
 750         case Play:
 751                 sstr = (shrt ? "P" : _("P"));
 752                 break;
 753         case Touch:
 754                 sstr = (shrt ? "T" : _("T"));
 755                 break;
 756         case Write:
 757                 sstr = (shrt ? "W" : _("W"));
 758                 break;
 759         }
 760
 761         return sstr;
 762 }
 763
 764 string
 765 GainMeterBase::astyle_string (AutoStyle style)
 766 {
 767         return _astyle_string (style, false);
 768 }
 769
 770 string
 771 GainMeterBase::short_astyle_string (AutoStyle style)
 772 {
 773         return _astyle_string (style, true);
 774 }
 775
 776 string
 777 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 778 {
 779         if (style & Trim) {
 780                 return _("Trim");
 781         } else {
 782                 /* XXX it might different in different languages */
 783
 784                 return (shrt ? _("Abs") : _("Abs"));
 785         }
 786 }
 787
 788 void
 789 GainMeterBase::gain_automation_style_changed ()
 790 {
 791         switch (_width) {
 792         case Wide:
 793                 gain_automation_style_button.set_text (astyle_string(_amp->gain_control()->alist()->automation_style()));
 794                 break;
 795         case Narrow:
 796                 gain_automation_style_button.set_text  (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
 797                 break;
 798         }
 799 }
 800
 801 void
 802 GainMeterBase::gain_automation_state_changed ()
 803 {
 804         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
 805
 806         bool x;
 807
 808         switch (_width) {
 809         case Wide:
 810                 gain_automation_state_button.set_text (astate_string(_amp->gain_control()->alist()->automation_state()));
 811                 break;
 812         case Narrow:
 813                 gain_automation_state_button.set_text (short_astate_string(_amp->gain_control()->alist()->automation_state()));
 814                 break;
 815         }
 816
 817         x = (_amp->gain_control()->alist()->automation_state() != ARDOUR::Off);
 818
 819         if (gain_automation_state_button.get_active() != x) {
 820                 ignore_toggle = true;
 821                 gain_automation_state_button.set_active (x);
 822                 ignore_toggle = false;
 823         }
 824
 825         update_gain_sensitive ();
 826
 827         /* start watching automation so that things move */
 828
 829         gain_watching.disconnect();
 830
 831         if (x) {
 832                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 833         }
 834 }
 835
 836 void
 837 GainMeterBase::update_meters()
 838 {
 839         char buf[32];
 840         float mpeak = level_meter->update_meters();
 841
 842         if (mpeak > max_peak) {
 843                 max_peak = mpeak;
 844                 if (mpeak <= -200.0f) {
 845                         peak_display.set_label (_("-inf"));
 846                 } else {
 847                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 848                         peak_display.set_label (buf);
 849                 }
 850         }
 851         if (mpeak >= Config->get_meter_peak()) {
 852                 peak_display.set_name ("MixerStripPeakDisplayPeak");
 853         }
 854 }
 855
 856 void GainMeterBase::color_handler(bool dpi)
 857 {
 858         setup_meters();
 859 }
 860
 861 void
 862 GainMeterBase::set_width (Width w, int len)
 863 {
 864         _width = w;
 865         int meter_width = 5;
 866         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 867                 meter_width = 10;
 868         }
 869         level_meter->setup_meters(len, meter_width);
 870 }
 871
 872
 873 void
 874 GainMeterBase::on_theme_changed()
 875 {
 876 }
 877
 878 void
 879 GainMeterBase::redraw_metrics()
 880 {
 881         meter_metric_area.queue_draw ();
 882         meter_ticks1_area.queue_draw ();
 883         meter_ticks2_area.queue_draw ();
 884 }
 885
 886 GainMeter::GainMeter (Session* s, int fader_length)
 887         : GainMeterBase (s, false, fader_length, 24)
 888         , gain_display_box(true, 0)
 889         , hbox(true, 2)
 890 {
 891         if (gain_display.get_parent()) {
 892                 gain_display.get_parent()->remove (gain_display);
 893         }
 894         gain_display_box.pack_start (gain_display, true, true);
 895
 896         meter_metric_area.set_name ("AudioTrackMetrics");
 897         meter_metric_area.set_size_request(25, 10);
 898
 899         gain_automation_style_button.set_name ("mixer strip button");
 900         gain_automation_state_button.set_name ("mixer strip button");
 901
 902         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 903         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 904
 905         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 906         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 907
 908         gain_automation_state_button.set_size_request(15, 15);
 909         gain_automation_style_button.set_size_request(15, 15);
 910
 911         fader_vbox = manage (new Gtk::VBox());
 912         fader_vbox->set_spacing (0);
 913         fader_vbox->pack_start (*gain_slider, true, true);
 914
 915         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 916         fader_alignment.add (*fader_vbox);
 917
 918         hbox.pack_start (fader_alignment, true, true);
 919
 920         set_spacing (2);
 921
 922         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 923         pack_start (hbox, Gtk::PACK_SHRINK);
 924
 925         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 926         meter_alignment.add (*level_meter);
 927
 928         meter_metric_area.signal_expose_event().connect (
 929                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 930
 931         meter_ticks1_area.set_size_request(3,-1);
 932         meter_ticks2_area.set_size_request(3,-1);
 933
 934         meter_ticks1_area.signal_expose_event().connect (
 935                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
 936         meter_ticks2_area.signal_expose_event().connect (
 937                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
 938
 939         meter_hbox.pack_start (meter_ticks1_area, false, false);
 940         meter_hbox.pack_start (meter_alignment, true, true);
 941         meter_hbox.pack_start (meter_ticks2_area, false, false);
 942         meter_hbox.pack_start (meter_metric_area, false, false);
 943 }
 944
 945 void
 946 GainMeter::set_controls (boost::shared_ptr<Route> r,
 947                          boost::shared_ptr<PeakMeter> meter,
 948                          boost::shared_ptr<Amp> amp)
 949 {
 950         if (meter_hbox.get_parent()) {
 951                 hbox.remove (meter_hbox);
 952         }
 953
 954 //      if (gain_automation_state_button.get_parent()) {
 955 //              fader_vbox->remove (gain_automation_state_button);
 956 //      }
 957
 958         GainMeterBase::set_controls (r, meter, amp);
 959
 960         if (_meter) {
 961                 _meter->ConfigurationChanged.connect (
 962                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
 963                         );
 964                 _meter->TypeChanged.connect (
 965                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_type_changed, this, _1), gui_context()
 966                         );
 967
 968                 meter_configuration_changed (_meter->input_streams ());
 969         }
 970
 971
 972         /*
 973            if we have a non-hidden route (ie. we're not the click or the auditioner),
 974            pack some route-dependent stuff.
 975         */
 976
 977         hbox.pack_start (meter_hbox, true, true);
 978
 979 //      if (r && !r->is_auditioner()) {
 980 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 981 //      }
 982
 983         hbox.show_all ();
 984         setup_meters ();
 985 }
 986
 987 int
 988 GainMeter::get_gm_width ()
 989 {
 990         Gtk::Requisition sz;
 991         hbox.size_request (sz);
 992         return sz.width;
 993 }
 994
 995 gint
 996 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 997 {
 998         return meter_expose_metrics(ev, _types, &meter_metric_area);
 999 }
1000
1001 gint
1002 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
1003 {
1004         return meter_expose_ticks(ev, _types, &meter_ticks1_area);
1005 }
1006
1007 gint
1008 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1009 {
1010         return meter_expose_ticks(ev, _types, &meter_ticks2_area);
1011 }
1012
1013 boost::shared_ptr<PBD::Controllable>
1014 GainMeterBase::get_controllable()
1015 {
1016         if (_amp) {
1017                 return _amp->gain_control();
1018         } else {
1019                 return boost::shared_ptr<PBD::Controllable>();
1020         }
1021 }
1022
1023 bool
1024 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1025 {
1026         return LevelMeterButtonPress (ev); /* EMIT SIGNAL */
1027 }
1028
1029 void
1030 GainMeter::meter_configuration_changed (ChanCount c)
1031 {
1032         int type = 0;
1033         _types.clear ();
1034
1035         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1036                 if (c.get (*i) > 0) {
1037                         _types.push_back (*i);
1038                         type |= 1 << (*i);
1039                 }
1040         }
1041
1042         if (_route
1043                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1044                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1045                         ) {
1046                 if (_route->active()) {
1047                         set_meter_strip_name ("AudioBusMetrics");
1048                 } else {
1049                         set_meter_strip_name ("AudioBusMetricsInactive");
1050                 }
1051         }
1052         else if (type == (1 << DataType::AUDIO)) {
1053                 if (!_route || _route->active()) {
1054                         set_meter_strip_name ("AudioTrackMetrics");
1055                 } else {
1056                         set_meter_strip_name ("AudioTrackMetricsInactive");
1057                 }
1058         }
1059         else if (type == (1 << DataType::MIDI)) {
1060                 if (!_route || _route->active()) {
1061                         set_meter_strip_name ("MidiTrackMetrics");
1062                 } else {
1063                         set_meter_strip_name ("MidiTrackMetricsInactive");
1064                 }
1065         } else {
1066                 if (!_route || _route->active()) {
1067                         set_meter_strip_name ("AudioMidiTrackMetrics");
1068                 } else {
1069                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1070                 }
1071         }
1072         meter_clear_pattern_cache(); // XXX only once
1073 }
1074
1075 void
1076 GainMeter::meter_type_changed (MeterType t)
1077 {
1078         _route->set_meter_type(t);
1079 }