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         bool remove_metric_area = false;
 271
 272         GainMeterBase::hide_all_meters ();
 273
 274         if (remove_metric_area) {
 275                 if (meter_metric_area.get_parent()) {
 276                         level_meter->remove (meter_metric_area);
 277                 }
 278         }
 279 }
 280
 281 void
 282 GainMeterBase::setup_meters (int len)
 283 {
 284         int meter_width = 5;
 285         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 286                 meter_width = 10;
 287         }
 288         level_meter->setup_meters(len, meter_width);
 289
 290         switch (_width) {
 291         case Wide:
 292                 //meter_metric_area.show();
 293                 meter_ticks1_area.show();
 294                 meter_ticks2_area.show();
 295                 break;
 296         case Narrow:
 297                 //meter_metric_area.hide();
 298                 meter_ticks1_area.hide();
 299                 meter_ticks2_area.hide();
 300                 break;
 301         }
 302 }
 303
 304 void
 305 GainMeter::setup_meters (int len)
 306 {
 307         GainMeterBase::setup_meters (len);
 308 }
 309
 310 bool
 311 GainMeterBase::gain_key_press (GdkEventKey* ev)
 312 {
 313         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 314                 /* drop through to normal handling */
 315                 return false;
 316         }
 317         /* illegal key for gain entry */
 318         return true;
 319 }
 320
 321 bool
 322 GainMeterBase::peak_button_release (GdkEventButton* ev)
 323 {
 324         /* reset peak label */
 325
 326         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 327                 ResetAllPeakDisplays ();
 328         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 329                 if (_route) {
 330                         ResetGroupPeakDisplays (_route->route_group());
 331                 }
 332         } else {
 333                 ResetRoutePeakDisplays (_route.get());
 334         }
 335
 336         return true;
 337 }
 338
 339 void
 340 GainMeterBase::reset_peak_display ()
 341 {
 342         _meter->reset_max();
 343         level_meter->clear_meters();
 344         max_peak = -INFINITY;
 345         peak_display.set_label (_("-inf"));
 346         peak_display.set_name ("MixerStripPeakDisplay");
 347 }
 348
 349 void
 350 GainMeterBase::reset_route_peak_display (Route* route)
 351 {
 352         if (_route && _route.get() == route) {
 353                 reset_peak_display ();
 354         }
 355 }
 356
 357 void
 358 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 359 {
 360         if (_route && group == _route->route_group()) {
 361                 reset_peak_display ();
 362         }
 363 }
 364
 365 void
 366 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 367 {
 368         using namespace Menu_Helpers;
 369
 370         if (meter_menu == 0) {
 371                 meter_menu = new Gtk::Menu;
 372                 MenuList& items = meter_menu->items();
 373
 374                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 375                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 376                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 377                 items.push_back (SeparatorElem());
 378                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 379                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 380                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 381         }
 382
 383         meter_menu->popup (1, ev->time);
 384 }
 385
 386 bool
 387 GainMeterBase::gain_focused (GdkEventFocus* ev)
 388 {
 389         if (ev->in) {
 390                 gain_display.select_region (0, -1);
 391         } else {
 392                 gain_display.select_region (0, 0);
 393         }
 394         return false;
 395 }
 396
 397 void
 398 GainMeterBase::gain_activated ()
 399 {
 400         float f;
 401
 402         {
 403                 // Switch to user's preferred locale so that
 404                 // if they use different LC_NUMERIC conventions,
 405                 // we will honor them.
 406
 407                 PBD::LocaleGuard lg ("");
 408                 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 409                         return;
 410                 }
 411         }
 412
 413         /* clamp to displayable values */
 414         if (_data_type == DataType::AUDIO) {
 415                 f = min (f, 6.0f);
 416                 _amp->set_gain (dB_to_coefficient(f), this);
 417         } else {
 418                 f = min (fabs (f), 2.0f);
 419                 _amp->set_gain (f, this);
 420         }
 421
 422         if (gain_display.has_focus()) {
 423                 Gtk::Widget* w = gain_display.get_toplevel();
 424                 if (w) {
 425                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 426
 427                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 428
 429                         if (win) {
 430                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 431                                 if (f) {
 432                                         gtk_widget_grab_focus (f);
 433                                         return;
 434                                 }
 435                         }
 436                 }
 437         }
 438 }
 439
 440 void
 441 GainMeterBase::show_gain ()
 442 {
 443         char buf[32];
 444
 445         float v = gain_adjustment.get_value();
 446
 447         switch (_data_type) {
 448         case DataType::AUDIO:
 449                 if (v == 0.0) {
 450                         strcpy (buf, _("-inf"));
 451                 } else {
 452                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 453                 }
 454                 break;
 455         case DataType::MIDI:
 456                 snprintf (buf, sizeof (buf), "%.1f", v);
 457                 break;
 458         }
 459
 460         gain_display.set_text (buf);
 461 }
 462
 463 void
 464 GainMeterBase::gain_adjusted ()
 465 {
 466         gain_t value;
 467
 468         /* convert from adjustment range (0..1) to gain coefficient */
 469
 470         if (_data_type == DataType::AUDIO) {
 471                 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 472         } else {
 473                 value = gain_adjustment.get_value();
 474         }
 475
 476         if (!ignore_toggle) {
 477                 if (_route && _route->amp() == _amp) {
 478                         _route->set_gain (value, this);
 479                 } else {
 480                         _amp->set_gain (value, this);
 481                 }
 482         }
 483
 484         show_gain ();
 485 }
 486
 487 void
 488 GainMeterBase::effective_gain_display ()
 489 {
 490         float value = 0.0;
 491
 492         switch (_data_type) {
 493         case DataType::AUDIO:
 494                 value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
 495                 break;
 496         case DataType::MIDI:
 497                 value = _amp->gain ();
 498                 break;
 499         }
 500
 501         if (gain_adjustment.get_value() != value) {
 502                 ignore_toggle = true;
 503                 gain_adjustment.set_value (value);
 504                 ignore_toggle = false;
 505         }
 506 }
 507
 508 void
 509 GainMeterBase::gain_changed ()
 510 {
 511         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 512 }
 513
 514 void
 515 GainMeterBase::set_meter_strip_name (const char * name)
 516 {
 517         meter_metric_area.set_name (name);
 518         meter_ticks1_area.set_name (name);
 519         meter_ticks2_area.set_name (name);
 520 }
 521
 522 void
 523 GainMeterBase::set_fader_name (const char * name)
 524 {
 525         gain_slider->set_name (name);
 526 }
 527
 528 void
 529 GainMeterBase::update_gain_sensitive ()
 530 {
 531         bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
 532         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 533 }
 534
 535 static MeterPoint
 536 next_meter_point (MeterPoint mp)
 537 {
 538         switch (mp) {
 539         case MeterInput:
 540                 return MeterPreFader;
 541                 break;
 542
 543         case MeterPreFader:
 544                 return MeterPostFader;
 545                 break;
 546
 547         case MeterPostFader:
 548                 return MeterOutput;
 549                 break;
 550
 551         case MeterOutput:
 552                 return MeterCustom;
 553                 break;
 554
 555         case MeterCustom:
 556                 return MeterInput;
 557                 break;
 558         }
 559
 560         /*NOTREACHED*/
 561         return MeterInput;
 562 }
 563
 564 gint
 565 GainMeterBase::meter_press(GdkEventButton* ev)
 566 {
 567         wait_for_release = false;
 568
 569         if (!_route) {
 570                 return FALSE;
 571         }
 572
 573         if (!ignore_toggle) {
 574
 575                 if (Keyboard::is_context_menu_event (ev)) {
 576
 577                         // no menu at this time.
 578
 579                 } else {
 580
 581                         if (Keyboard::is_button2_event(ev)) {
 582
 583                                 // Primary-button2 click is the midi binding click
 584                                 // button2-click is "momentary"
 585
 586                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 587                                         wait_for_release = true;
 588                                         old_meter_point = _route->meter_point ();
 589                                 }
 590                         }
 591
 592                         if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
 593
 594                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 595
 596                                         /* Primary+Tertiary-click applies change to all routes */
 597
 598                                         _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
 599
 600
 601                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 602
 603                                         /* Primary-click: solo mix group.
 604                                            NOTE: Primary-button2 is MIDI learn.
 605                                         */
 606
 607                                         if (ev->button == 1) {
 608                                                 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 609                                         }
 610
 611                                 } else {
 612
 613                                         /* click: change just this route */
 614
 615                                         // XXX no undo yet
 616
 617                                         _route->set_meter_point (next_meter_point (_route->meter_point()));
 618                                 }
 619                         }
 620                 }
 621         }
 622
 623         return true;
 624
 625 }
 626
 627 gint
 628 GainMeterBase::meter_release(GdkEventButton*)
 629 {
 630         if (!ignore_toggle) {
 631                 if (wait_for_release) {
 632                         wait_for_release = false;
 633
 634                         if (_route) {
 635                                 set_meter_point (*_route, old_meter_point);
 636                         }
 637                 }
 638         }
 639
 640         return true;
 641 }
 642
 643 void
 644 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 645 {
 646         route.set_meter_point (mp);
 647 }
 648
 649 void
 650 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 651 {
 652         RouteGroup* route_group;
 653
 654         if ((route_group = route.route_group ()) != 0) {
 655                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 656         } else {
 657                 route.set_meter_point (mp);
 658         }
 659 }
 660
 661 void
 662 GainMeterBase::meter_point_clicked ()
 663 {
 664         if (_route) {
 665                 /* WHAT? */
 666         }
 667 }
 668
 669 bool
 670 GainMeterBase::gain_slider_button_press (GdkEventButton* ev)
 671 {
 672         switch (ev->type) {
 673         case GDK_BUTTON_PRESS:
 674                 _amp->gain_control()->start_touch (_amp->session().transport_frame());
 675                 break;
 676         default:
 677                 return false;
 678         }
 679
 680         return false;
 681 }
 682
 683 bool
 684 GainMeterBase::gain_slider_button_release (GdkEventButton*)
 685 {
 686         _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
 687         return false;
 688 }
 689
 690 gint
 691 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 692 {
 693         if (ev->type == GDK_BUTTON_RELEASE) {
 694                 return TRUE;
 695         }
 696
 697         switch (ev->button) {
 698                 case 1:
 699                         gain_astate_menu.popup (1, ev->time);
 700                         break;
 701                 default:
 702                         break;
 703         }
 704
 705         return TRUE;
 706 }
 707
 708 gint
 709 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 710 {
 711         if (ev->type == GDK_BUTTON_RELEASE) {
 712                 return TRUE;
 713         }
 714
 715         switch (ev->button) {
 716         case 1:
 717                 gain_astyle_menu.popup (1, ev->time);
 718                 break;
 719         default:
 720                 break;
 721         }
 722         return TRUE;
 723 }
 724
 725 string
 726 GainMeterBase::astate_string (AutoState state)
 727 {
 728         return _astate_string (state, false);
 729 }
 730
 731 string
 732 GainMeterBase::short_astate_string (AutoState state)
 733 {
 734         return _astate_string (state, true);
 735 }
 736
 737 string
 738 GainMeterBase::_astate_string (AutoState state, bool shrt)
 739 {
 740         string sstr;
 741
 742         switch (state) {
 743         case ARDOUR::Off:
 744                 sstr = (shrt ? "M" : _("M"));
 745                 break;
 746         case Play:
 747                 sstr = (shrt ? "P" : _("P"));
 748                 break;
 749         case Touch:
 750                 sstr = (shrt ? "T" : _("T"));
 751                 break;
 752         case Write:
 753                 sstr = (shrt ? "W" : _("W"));
 754                 break;
 755         }
 756
 757         return sstr;
 758 }
 759
 760 string
 761 GainMeterBase::astyle_string (AutoStyle style)
 762 {
 763         return _astyle_string (style, false);
 764 }
 765
 766 string
 767 GainMeterBase::short_astyle_string (AutoStyle style)
 768 {
 769         return _astyle_string (style, true);
 770 }
 771
 772 string
 773 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 774 {
 775         if (style & Trim) {
 776                 return _("Trim");
 777         } else {
 778                 /* XXX it might different in different languages */
 779
 780                 return (shrt ? _("Abs") : _("Abs"));
 781         }
 782 }
 783
 784 void
 785 GainMeterBase::gain_automation_style_changed ()
 786 {
 787         switch (_width) {
 788         case Wide:
 789                 gain_automation_style_button.set_text (astyle_string(_amp->gain_control()->alist()->automation_style()));
 790                 break;
 791         case Narrow:
 792                 gain_automation_style_button.set_text  (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
 793                 break;
 794         }
 795 }
 796
 797 void
 798 GainMeterBase::gain_automation_state_changed ()
 799 {
 800         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
 801
 802         bool x;
 803
 804         switch (_width) {
 805         case Wide:
 806                 gain_automation_state_button.set_text (astate_string(_amp->gain_control()->alist()->automation_state()));
 807                 break;
 808         case Narrow:
 809                 gain_automation_state_button.set_text (short_astate_string(_amp->gain_control()->alist()->automation_state()));
 810                 break;
 811         }
 812
 813         x = (_amp->gain_control()->alist()->automation_state() != ARDOUR::Off);
 814
 815         if (gain_automation_state_button.get_active() != x) {
 816                 ignore_toggle = true;
 817                 gain_automation_state_button.set_active (x);
 818                 ignore_toggle = false;
 819         }
 820
 821         update_gain_sensitive ();
 822
 823         /* start watching automation so that things move */
 824
 825         gain_watching.disconnect();
 826
 827         if (x) {
 828                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 829         }
 830 }
 831
 832 void
 833 GainMeterBase::update_meters()
 834 {
 835         char buf[32];
 836         float mpeak = level_meter->update_meters();
 837
 838         if (mpeak > max_peak) {
 839                 max_peak = mpeak;
 840                 if (mpeak <= -200.0f) {
 841                         peak_display.set_label (_("-inf"));
 842                 } else {
 843                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 844                         peak_display.set_label (buf);
 845                 }
 846
 847                 if (mpeak >= 0.0f) {
 848                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 849                 }
 850         }
 851 }
 852
 853 void GainMeterBase::color_handler(bool dpi)
 854 {
 855         setup_meters();
 856 }
 857
 858 void
 859 GainMeterBase::set_width (Width w, int len)
 860 {
 861         _width = w;
 862         int meter_width = 5;
 863         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 864                 meter_width = 10;
 865         }
 866         level_meter->setup_meters(len, meter_width);
 867 }
 868
 869
 870 void
 871 GainMeterBase::on_theme_changed()
 872 {
 873 }
 874
 875 void
 876 GainMeterBase::redraw_metrics()
 877 {
 878         meter_metric_area.queue_draw ();
 879         meter_ticks1_area.queue_draw ();
 880         meter_ticks2_area.queue_draw ();
 881 }
 882
 883 GainMeter::GainMeter (Session* s, int fader_length)
 884         : GainMeterBase (s, false, fader_length, 24)
 885         , gain_display_box(true, 0)
 886         , hbox(true, 2)
 887 {
 888         if (gain_display.get_parent()) {
 889                 gain_display.get_parent()->remove (gain_display);
 890         }
 891         gain_display_box.pack_start (gain_display, true, true);
 892
 893         meter_metric_area.set_name ("AudioTrackMetrics");
 894         set_size_request_to_display_given_text (meter_metric_area, "-8888", 1, 0);
 895
 896         gain_automation_style_button.set_name ("mixer strip button");
 897         gain_automation_state_button.set_name ("mixer strip button");
 898
 899         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 900         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 901
 902         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 903         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 904
 905         gain_automation_state_button.set_size_request(15, 15);
 906         gain_automation_style_button.set_size_request(15, 15);
 907
 908         fader_vbox = manage (new Gtk::VBox());
 909         fader_vbox->set_spacing (0);
 910         fader_vbox->pack_start (*gain_slider, true, true);
 911
 912         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 913         fader_alignment.add (*fader_vbox);
 914
 915         hbox.pack_start (fader_alignment, true, true);
 916
 917         set_spacing (2);
 918
 919         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 920         pack_start (hbox, Gtk::PACK_SHRINK);
 921
 922         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 923         meter_alignment.add (*level_meter);
 924
 925         meter_metric_area.signal_expose_event().connect (
 926                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 927
 928         meter_ticks1_area.set_size_request(3,-1);
 929         meter_ticks2_area.set_size_request(3,-1);
 930
 931         meter_ticks1_area.signal_expose_event().connect (
 932                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
 933         meter_ticks2_area.signal_expose_event().connect (
 934                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
 935
 936         meter_hbox.pack_start (meter_ticks1_area, false, false);
 937         meter_hbox.pack_start (meter_alignment, true, true);
 938         meter_hbox.pack_start (meter_ticks2_area, false, false);
 939         meter_hbox.pack_start (meter_metric_area, false, false);
 940 }
 941
 942 void
 943 GainMeter::set_controls (boost::shared_ptr<Route> r,
 944                          boost::shared_ptr<PeakMeter> meter,
 945                          boost::shared_ptr<Amp> amp)
 946 {
 947         if (meter_hbox.get_parent()) {
 948                 hbox.remove (meter_hbox);
 949         }
 950
 951 //      if (gain_automation_state_button.get_parent()) {
 952 //              fader_vbox->remove (gain_automation_state_button);
 953 //      }
 954
 955         GainMeterBase::set_controls (r, meter, amp);
 956
 957         if (_meter) {
 958                 _meter->ConfigurationChanged.connect (
 959                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
 960                         );
 961
 962                 meter_configuration_changed (_meter->input_streams ());
 963         }
 964
 965
 966         /*
 967            if we have a non-hidden route (ie. we're not the click or the auditioner),
 968            pack some route-dependent stuff.
 969         */
 970
 971         hbox.pack_start (meter_hbox, true, true);
 972
 973 //      if (r && !r->is_auditioner()) {
 974 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 975 //      }
 976
 977         hbox.show_all ();
 978         setup_meters ();
 979 }
 980
 981 int
 982 GainMeter::get_gm_width ()
 983 {
 984         Gtk::Requisition sz;
 985         hbox.size_request (sz);
 986         return sz.width;
 987 }
 988
 989 gint
 990 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 991 {
 992         return meter_expose_metrics(ev, _types, &meter_metric_area);
 993 }
 994
 995 gint
 996 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
 997 {
 998         return meter_expose_ticks(ev, _types, &meter_ticks1_area);
 999 }
1000
1001 gint
1002 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1003 {
1004         return meter_expose_ticks(ev, _types, &meter_ticks2_area);
1005 }
1006
1007 boost::shared_ptr<PBD::Controllable>
1008 GainMeterBase::get_controllable()
1009 {
1010         if (_amp) {
1011                 return _amp->gain_control();
1012         } else {
1013                 return boost::shared_ptr<PBD::Controllable>();
1014         }
1015 }
1016
1017 bool
1018 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1019 {
1020         return LevelMeterButtonPress (ev); /* EMIT SIGNAL */
1021 }
1022
1023 void
1024 GainMeter::meter_configuration_changed (ChanCount c)
1025 {
1026         int type = 0;
1027         _types.clear ();
1028
1029         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1030                 if (c.get (*i) > 0) {
1031                         _types.push_back (*i);
1032                         type |= 1 << (*i);
1033                 }
1034         }
1035
1036         if (_route
1037                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1038                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1039                         ) {
1040                 if (_route->active()) {
1041                         set_meter_strip_name ("AudioBusMetrics");
1042                 } else {
1043                         set_meter_strip_name ("AudioBusMetricsInactive");
1044                 }
1045         }
1046         else if (type == (1 << DataType::AUDIO)) {
1047                 if (!_route || _route->active()) {
1048                         set_meter_strip_name ("AudioTrackMetrics");
1049                 } else {
1050                         set_meter_strip_name ("AudioTrackMetricsInactive");
1051                 }
1052         }
1053         else if (type == (1 << DataType::MIDI)) {
1054                 if (!_route || _route->active()) {
1055                         set_meter_strip_name ("MidiTrackMetrics");
1056                 } else {
1057                         set_meter_strip_name ("MidiTrackMetricsInactive");
1058                 }
1059         } else {
1060                 if (!_route || _route->active()) {
1061                         set_meter_strip_name ("AudioMidiTrackMetrics");
1062                 } else {
1063                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1064                 }
1065         }
1066         meter_clear_pattern_cache(); // XXX only once
1067 }
1068