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