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 "pbd/fastlog.h"
  36 #include "pbd/stacktrace.h"
  37
  38 #include "ardour_ui.h"
  39 #include "gain_meter.h"
  40 #include "global_signals.h"
  41 #include "logmeter.h"
  42 #include "gui_thread.h"
  43 #include "keyboard.h"
  44 #include "public_editor.h"
  45 #include "utils.h"
  46 #include "meter_patterns.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
  54 #include "i18n.h"
  55
  56 using namespace ARDOUR;
  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, false));
  82         } else {
  83                 gain_slider = manage (new VSliderController (&gain_adjustment, fader_length, fader_girth, false));
  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
 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
 278         switch (_width) {
 279                 case Wide:
 280                         meter_ticks1_area.show();
 281                         meter_ticks2_area.show();
 282                         if (_route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 283                                 meter_width = 10;
 284                         }
 285                         break;
 286                 case Narrow:
 287                         meter_width = 2;
 288                         meter_ticks1_area.hide();
 289                         meter_ticks2_area.hide();
 290                         break;
 291         }
 292         level_meter->setup_meters(len, meter_width);
 293 }
 294
 295 void
 296 GainMeterBase::set_type (MeterType t)
 297 {
 298         level_meter->set_type(t);
 299 }
 300
 301 void
 302 GainMeter::setup_meters (int len)
 303 {
 304         switch (_width) {
 305                 case Wide:
 306                         hbox.set_homogeneous(true);
 307                         break;
 308                 case Narrow:
 309                         hbox.set_homogeneous(false);
 310                         break;
 311         }
 312         GainMeterBase::setup_meters (len);
 313 }
 314
 315 void
 316 GainMeter::set_type (MeterType t)
 317 {
 318         GainMeterBase::set_type (t);
 319 }
 320
 321 bool
 322 GainMeterBase::gain_key_press (GdkEventKey* ev)
 323 {
 324         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 325                 /* drop through to normal handling */
 326                 return false;
 327         }
 328         /* illegal key for gain entry */
 329         return true;
 330 }
 331
 332 bool
 333 GainMeterBase::peak_button_release (GdkEventButton* ev)
 334 {
 335         /* reset peak label */
 336
 337         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 338                 ResetAllPeakDisplays ();
 339         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 340                 if (_route) {
 341                         ResetGroupPeakDisplays (_route->route_group());
 342                 }
 343         } else {
 344                 ResetRoutePeakDisplays (_route.get());
 345         }
 346
 347         return true;
 348 }
 349
 350 void
 351 GainMeterBase::reset_peak_display ()
 352 {
 353         _meter->reset_max();
 354         level_meter->clear_meters();
 355         max_peak = -INFINITY;
 356         peak_display.set_label (_("-inf"));
 357         peak_display.set_name ("MixerStripPeakDisplay");
 358 }
 359
 360 void
 361 GainMeterBase::reset_route_peak_display (Route* route)
 362 {
 363         if (_route && _route.get() == route) {
 364                 reset_peak_display ();
 365         }
 366 }
 367
 368 void
 369 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 370 {
 371         if (_route && group == _route->route_group()) {
 372                 reset_peak_display ();
 373         }
 374 }
 375
 376 void
 377 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 378 {
 379         using namespace Menu_Helpers;
 380
 381         if (meter_menu == 0) {
 382                 meter_menu = new Gtk::Menu;
 383                 MenuList& items = meter_menu->items();
 384
 385                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 386                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 387                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 388                 items.push_back (SeparatorElem());
 389                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 390                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 391                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 392         }
 393
 394         meter_menu->popup (1, ev->time);
 395 }
 396
 397 bool
 398 GainMeterBase::gain_focused (GdkEventFocus* ev)
 399 {
 400         if (ev->in) {
 401                 gain_display.select_region (0, -1);
 402         } else {
 403                 gain_display.select_region (0, 0);
 404         }
 405         return false;
 406 }
 407
 408 void
 409 GainMeterBase::gain_activated ()
 410 {
 411         float f;
 412
 413         {
 414                 // Switch to user's preferred locale so that
 415                 // if they use different LC_NUMERIC conventions,
 416                 // we will honor them.
 417
 418                 PBD::LocaleGuard lg ("");
 419                 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 420                         return;
 421                 }
 422         }
 423
 424         /* clamp to displayable values */
 425         if (_data_type == DataType::AUDIO) {
 426                 f = min (f, 6.0f);
 427                 _amp->set_gain (dB_to_coefficient(f), this);
 428         } else {
 429                 f = min (fabs (f), 2.0f);
 430                 _amp->set_gain (f, this);
 431         }
 432
 433         if (gain_display.has_focus()) {
 434                 Gtk::Widget* w = gain_display.get_toplevel();
 435                 if (w) {
 436                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 437
 438                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 439
 440                         if (win) {
 441                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 442                                 if (f) {
 443                                         gtk_widget_grab_focus (f);
 444                                         return;
 445                                 }
 446                         }
 447                 }
 448         }
 449 }
 450
 451 void
 452 GainMeterBase::show_gain ()
 453 {
 454         char buf[32];
 455
 456         float v = gain_adjustment.get_value();
 457
 458         switch (_data_type) {
 459         case DataType::AUDIO:
 460                 if (v == 0.0) {
 461                         strcpy (buf, _("-inf"));
 462                 } else {
 463                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 464                 }
 465                 break;
 466         case DataType::MIDI:
 467                 snprintf (buf, sizeof (buf), "%.1f", v);
 468                 break;
 469         }
 470
 471         gain_display.set_text (buf);
 472 }
 473
 474 void
 475 GainMeterBase::gain_adjusted ()
 476 {
 477         gain_t value;
 478
 479         /* convert from adjustment range (0..1) to gain coefficient */
 480
 481         if (_data_type == DataType::AUDIO) {
 482                 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 483         } else {
 484                 value = gain_adjustment.get_value();
 485         }
 486
 487         if (!ignore_toggle) {
 488                 if (_route && _route->amp() == _amp) {
 489                         _route->set_gain (value, this);
 490                 } else {
 491                         _amp->set_gain (value, this);
 492                 }
 493         }
 494
 495         show_gain ();
 496 }
 497
 498 void
 499 GainMeterBase::effective_gain_display ()
 500 {
 501         float value = 0.0;
 502
 503         switch (_data_type) {
 504         case DataType::AUDIO:
 505                 value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
 506                 break;
 507         case DataType::MIDI:
 508                 value = _amp->gain ();
 509                 break;
 510         }
 511
 512         if (gain_adjustment.get_value() != value) {
 513                 ignore_toggle = true;
 514                 gain_adjustment.set_value (value);
 515                 ignore_toggle = false;
 516         }
 517 }
 518
 519 void
 520 GainMeterBase::gain_changed ()
 521 {
 522         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 523 }
 524
 525 void
 526 GainMeterBase::set_meter_strip_name (const char * name)
 527 {
 528         char tmp[256];
 529         meter_metric_area.set_name (name);
 530         sprintf(tmp, "Mark%sLeft", name);
 531         meter_ticks1_area.set_name (tmp);
 532         sprintf(tmp, "Mark%sRight", name);
 533         meter_ticks2_area.set_name (tmp);
 534 }
 535
 536 void
 537 GainMeterBase::set_fader_name (const char * name)
 538 {
 539         gain_slider->set_name (name);
 540 }
 541
 542 void
 543 GainMeterBase::update_gain_sensitive ()
 544 {
 545         bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
 546         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 547 }
 548
 549 static MeterPoint
 550 next_meter_point (MeterPoint mp)
 551 {
 552         switch (mp) {
 553         case MeterInput:
 554                 return MeterPreFader;
 555                 break;
 556
 557         case MeterPreFader:
 558                 return MeterPostFader;
 559                 break;
 560
 561         case MeterPostFader:
 562                 return MeterOutput;
 563                 break;
 564
 565         case MeterOutput:
 566                 return MeterCustom;
 567                 break;
 568
 569         case MeterCustom:
 570                 return MeterInput;
 571                 break;
 572         }
 573
 574         /*NOTREACHED*/
 575         return MeterInput;
 576 }
 577
 578 gint
 579 GainMeterBase::meter_press(GdkEventButton* ev)
 580 {
 581         wait_for_release = false;
 582
 583         if (!_route) {
 584                 return FALSE;
 585         }
 586
 587         if (!ignore_toggle) {
 588
 589                 if (Keyboard::is_context_menu_event (ev)) {
 590
 591                         // no menu at this time.
 592
 593                 } else {
 594
 595                         if (Keyboard::is_button2_event(ev)) {
 596
 597                                 // Primary-button2 click is the midi binding click
 598                                 // button2-click is "momentary"
 599
 600                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 601                                         wait_for_release = true;
 602                                         old_meter_point = _route->meter_point ();
 603                                 }
 604                         }
 605
 606                         if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
 607
 608                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 609
 610                                         /* Primary+Tertiary-click applies change to all routes */
 611
 612                                         _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
 613
 614
 615                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 616
 617                                         /* Primary-click: solo mix group.
 618                                            NOTE: Primary-button2 is MIDI learn.
 619                                         */
 620
 621                                         if (ev->button == 1) {
 622                                                 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 623                                         }
 624
 625                                 } else {
 626
 627                                         /* click: change just this route */
 628
 629                                         // XXX no undo yet
 630
 631                                         _route->set_meter_point (next_meter_point (_route->meter_point()));
 632                                 }
 633                         }
 634                 }
 635         }
 636
 637         return true;
 638
 639 }
 640
 641 gint
 642 GainMeterBase::meter_release(GdkEventButton*)
 643 {
 644         if (!ignore_toggle) {
 645                 if (wait_for_release) {
 646                         wait_for_release = false;
 647
 648                         if (_route) {
 649                                 set_meter_point (*_route, old_meter_point);
 650                         }
 651                 }
 652         }
 653
 654         return true;
 655 }
 656
 657 void
 658 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 659 {
 660         route.set_meter_point (mp);
 661 }
 662
 663 void
 664 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 665 {
 666         RouteGroup* route_group;
 667
 668         if ((route_group = route.route_group ()) != 0) {
 669                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 670         } else {
 671                 route.set_meter_point (mp);
 672         }
 673 }
 674
 675 void
 676 GainMeterBase::meter_point_clicked ()
 677 {
 678         if (_route) {
 679                 /* WHAT? */
 680         }
 681 }
 682
 683 bool
 684 GainMeterBase::gain_slider_button_press (GdkEventButton* ev)
 685 {
 686         switch (ev->type) {
 687         case GDK_BUTTON_PRESS:
 688                 _amp->gain_control()->start_touch (_amp->session().transport_frame());
 689                 break;
 690         default:
 691                 return false;
 692         }
 693
 694         return false;
 695 }
 696
 697 bool
 698 GainMeterBase::gain_slider_button_release (GdkEventButton*)
 699 {
 700         _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
 701         return false;
 702 }
 703
 704 gint
 705 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 706 {
 707         if (ev->type == GDK_BUTTON_RELEASE) {
 708                 return TRUE;
 709         }
 710
 711         switch (ev->button) {
 712                 case 1:
 713                         gain_astate_menu.popup (1, ev->time);
 714                         break;
 715                 default:
 716                         break;
 717         }
 718
 719         return TRUE;
 720 }
 721
 722 gint
 723 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 724 {
 725         if (ev->type == GDK_BUTTON_RELEASE) {
 726                 return TRUE;
 727         }
 728
 729         switch (ev->button) {
 730         case 1:
 731                 gain_astyle_menu.popup (1, ev->time);
 732                 break;
 733         default:
 734                 break;
 735         }
 736         return TRUE;
 737 }
 738
 739 string
 740 GainMeterBase::astate_string (AutoState state)
 741 {
 742         return _astate_string (state, false);
 743 }
 744
 745 string
 746 GainMeterBase::short_astate_string (AutoState state)
 747 {
 748         return _astate_string (state, true);
 749 }
 750
 751 string
 752 GainMeterBase::_astate_string (AutoState state, bool shrt)
 753 {
 754         string sstr;
 755
 756         switch (state) {
 757         case ARDOUR::Off:
 758                 sstr = (shrt ? "M" : _("M"));
 759                 break;
 760         case Play:
 761                 sstr = (shrt ? "P" : _("P"));
 762                 break;
 763         case Touch:
 764                 sstr = (shrt ? "T" : _("T"));
 765                 break;
 766         case Write:
 767                 sstr = (shrt ? "W" : _("W"));
 768                 break;
 769         }
 770
 771         return sstr;
 772 }
 773
 774 string
 775 GainMeterBase::astyle_string (AutoStyle style)
 776 {
 777         return _astyle_string (style, false);
 778 }
 779
 780 string
 781 GainMeterBase::short_astyle_string (AutoStyle style)
 782 {
 783         return _astyle_string (style, true);
 784 }
 785
 786 string
 787 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 788 {
 789         if (style & Trim) {
 790                 return _("Trim");
 791         } else {
 792                 /* XXX it might different in different languages */
 793
 794                 return (shrt ? _("Abs") : _("Abs"));
 795         }
 796 }
 797
 798 void
 799 GainMeterBase::gain_automation_style_changed ()
 800 {
 801         switch (_width) {
 802         case Wide:
 803                 gain_automation_style_button.set_text (astyle_string(_amp->gain_control()->alist()->automation_style()));
 804                 break;
 805         case Narrow:
 806                 gain_automation_style_button.set_text  (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
 807                 break;
 808         }
 809 }
 810
 811 void
 812 GainMeterBase::gain_automation_state_changed ()
 813 {
 814         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
 815
 816         bool x;
 817
 818         switch (_width) {
 819         case Wide:
 820                 gain_automation_state_button.set_text (astate_string(_amp->gain_control()->alist()->automation_state()));
 821                 break;
 822         case Narrow:
 823                 gain_automation_state_button.set_text (short_astate_string(_amp->gain_control()->alist()->automation_state()));
 824                 break;
 825         }
 826
 827         x = (_amp->gain_control()->alist()->automation_state() != ARDOUR::Off);
 828
 829         if (gain_automation_state_button.get_active() != x) {
 830                 ignore_toggle = true;
 831                 gain_automation_state_button.set_active (x);
 832                 ignore_toggle = false;
 833         }
 834
 835         update_gain_sensitive ();
 836
 837         /* start watching automation so that things move */
 838
 839         gain_watching.disconnect();
 840
 841         if (x) {
 842                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 843         }
 844 }
 845
 846 void
 847 GainMeterBase::update_meters()
 848 {
 849         char buf[32];
 850         float mpeak = level_meter->update_meters();
 851
 852         if (mpeak > max_peak) {
 853                 max_peak = mpeak;
 854                 if (mpeak <= -200.0f) {
 855                         peak_display.set_label (_("-inf"));
 856                 } else {
 857                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 858                         peak_display.set_label (buf);
 859                 }
 860         }
 861         if (mpeak >= Config->get_meter_peak()) {
 862                 peak_display.set_name ("MixerStripPeakDisplayPeak");
 863         }
 864 }
 865
 866 void GainMeterBase::color_handler(bool /*dpi*/)
 867 {
 868         setup_meters();
 869 }
 870
 871 void
 872 GainMeterBase::set_width (Width w, int len)
 873 {
 874         _width = w;
 875         int meter_width = 5;
 876         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 877                 meter_width = 10;
 878         }
 879         level_meter->setup_meters(len, meter_width);
 880 }
 881
 882
 883 void
 884 GainMeterBase::on_theme_changed()
 885 {
 886 }
 887
 888 void
 889 GainMeterBase::redraw_metrics()
 890 {
 891         meter_metric_area.queue_draw ();
 892         meter_ticks1_area.queue_draw ();
 893         meter_ticks2_area.queue_draw ();
 894 }
 895
 896 GainMeter::GainMeter (Session* s, int fader_length)
 897         : GainMeterBase (s, false, fader_length, 24)
 898         , gain_display_box(true, 0)
 899         , hbox(true, 2)
 900 {
 901         if (gain_display.get_parent()) {
 902                 gain_display.get_parent()->remove (gain_display);
 903         }
 904         gain_display_box.pack_start (gain_display, true, true);
 905
 906         meter_metric_area.set_name ("AudioTrackMetrics");
 907         meter_metric_area.set_size_request(24, -1);
 908
 909         gain_automation_style_button.set_name ("mixer strip button");
 910         gain_automation_state_button.set_name ("mixer strip button");
 911
 912         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 913         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 914
 915         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 916         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 917
 918         gain_automation_state_button.set_size_request(15, 15);
 919         gain_automation_style_button.set_size_request(15, 15);
 920
 921         fader_vbox = manage (new Gtk::VBox());
 922         fader_vbox->set_spacing (0);
 923         fader_vbox->pack_start (*gain_slider, true, true);
 924
 925         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 926         fader_alignment.add (*fader_vbox);
 927
 928         hbox.pack_start (fader_alignment, true, true);
 929
 930         set_spacing (2);
 931
 932         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 933         pack_start (hbox, Gtk::PACK_SHRINK);
 934
 935         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 936         meter_alignment.add (*level_meter);
 937
 938         meter_metric_area.signal_expose_event().connect (
 939                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 940
 941         meter_ticks1_area.set_size_request(3,-1);
 942         meter_ticks2_area.set_size_request(3,-1);
 943
 944         meter_ticks1_area.signal_expose_event().connect (
 945                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
 946         meter_ticks2_area.signal_expose_event().connect (
 947                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
 948
 949         meter_hbox.pack_start (meter_ticks1_area, false, false);
 950         meter_hbox.pack_start (meter_alignment, false, false);
 951         meter_hbox.pack_start (meter_ticks2_area, false, false);
 952         meter_hbox.pack_start (meter_metric_area, false, false);
 953 }
 954
 955 GainMeter::~GainMeter () { }
 956
 957 void
 958 GainMeter::set_controls (boost::shared_ptr<Route> r,
 959                          boost::shared_ptr<PeakMeter> meter,
 960                          boost::shared_ptr<Amp> amp)
 961 {
 962         if (meter_hbox.get_parent()) {
 963                 hbox.remove (meter_hbox);
 964         }
 965
 966 //      if (gain_automation_state_button.get_parent()) {
 967 //              fader_vbox->remove (gain_automation_state_button);
 968 //      }
 969
 970         GainMeterBase::set_controls (r, meter, amp);
 971
 972         if (_meter) {
 973                 _meter->ConfigurationChanged.connect (
 974                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
 975                         );
 976                 _meter->TypeChanged.connect (
 977                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_type_changed, this, _1), gui_context()
 978                         );
 979
 980                 meter_configuration_changed (_meter->input_streams ());
 981         }
 982
 983
 984         if (_route) {
 985                 _route->active_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::route_active_changed, this), gui_context ());
 986         }
 987
 988         /*
 989            if we have a non-hidden route (ie. we're not the click or the auditioner),
 990            pack some route-dependent stuff.
 991         */
 992
 993         hbox.pack_start (meter_hbox, true, true);
 994
 995 //      if (r && !r->is_auditioner()) {
 996 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 997 //      }
 998
 999         hbox.show_all ();
1000         setup_meters ();
1001 }
1002
1003 int
1004 GainMeter::get_gm_width ()
1005 {
1006         Gtk::Requisition sz;
1007         int min_w = 0;
1008         meter_metric_area.size_request (sz);
1009         min_w += sz.width;
1010         level_meter->size_request (sz);
1011         min_w += sz.width;
1012
1013         fader_alignment.size_request (sz);
1014         if (_width == Wide)
1015                 return max(sz.width * 2, min_w * 2) + 6;
1016         else
1017                 return sz.width + min_w + 6;
1018
1019 }
1020
1021 gint
1022 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1023 {
1024         if (!_route) {
1025                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1026                 return meter_expose_metrics(ev, MeterPeak, _types, &meter_metric_area);
1027         }
1028         return meter_expose_metrics(ev, _route->meter_type(), _types, &meter_metric_area);
1029 }
1030
1031 gint
1032 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
1033 {
1034         if (!_route) {
1035                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1036                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks1_area);
1037         }
1038         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks1_area);
1039 }
1040
1041 gint
1042 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1043 {
1044         if (!_route) {
1045                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1046                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks2_area);
1047         }
1048         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks2_area);
1049 }
1050
1051 boost::shared_ptr<PBD::Controllable>
1052 GainMeterBase::get_controllable()
1053 {
1054         if (_amp) {
1055                 return _amp->gain_control();
1056         } else {
1057                 return boost::shared_ptr<PBD::Controllable>();
1058         }
1059 }
1060
1061 bool
1062 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1063 {
1064         return LevelMeterButtonPress (ev); /* EMIT SIGNAL */
1065 }
1066
1067 void
1068 GainMeter::meter_configuration_changed (ChanCount c)
1069 {
1070         int type = 0;
1071         _types.clear ();
1072
1073         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1074                 if (c.get (*i) > 0) {
1075                         _types.push_back (*i);
1076                         type |= 1 << (*i);
1077                 }
1078         }
1079
1080         if (_route
1081                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1082                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1083                         ) {
1084                 if (_route->active()) {
1085                         set_meter_strip_name ("AudioBusMetrics");
1086                 } else {
1087                         set_meter_strip_name ("AudioBusMetricsInactive");
1088                 }
1089         }
1090         else if (
1091                            (type == (1 << DataType::MIDI))
1092                         || (_route && boost::dynamic_pointer_cast<MidiTrack>(_route))
1093                         ) {
1094                 if (!_route || _route->active()) {
1095                         set_meter_strip_name ("MidiTrackMetrics");
1096                 } else {
1097                         set_meter_strip_name ("MidiTrackMetricsInactive");
1098                 }
1099         }
1100         else if (type == (1 << DataType::AUDIO)) {
1101                 if (!_route || _route->active()) {
1102                         set_meter_strip_name ("AudioTrackMetrics");
1103                 } else {
1104                         set_meter_strip_name ("AudioTrackMetricsInactive");
1105                 }
1106         } else {
1107                 if (!_route || _route->active()) {
1108                         set_meter_strip_name ("AudioMidiTrackMetrics");
1109                 } else {
1110                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1111                 }
1112         }
1113
1114         setup_meters();
1115         meter_clear_pattern_cache(4);
1116 }
1117
1118 void
1119 GainMeter::route_active_changed ()
1120 {
1121         if (_meter) {
1122                 meter_configuration_changed (_meter->input_streams ());
1123         }
1124 }
1125
1126 void
1127 GainMeter::meter_type_changed (MeterType t)
1128 {
1129         _route->set_meter_type(t);
1130         RedrawMetrics();
1131 }