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
  65 static void
  66 reset_cursor_to_default (Gtk::Entry* widget)
  67 {
  68         Glib::RefPtr<Gdk::Window> win = widget->get_text_window ();
  69         if (win) {
  70                 /* C++ doesn't provide a pointer argument version of this
  71                    (i.e. you cannot set to NULL to get the default/parent
  72                    cursor)
  73                 */
  74                 gdk_window_set_cursor (win->gobj(), 0);
  75         }
  76 }
  77
  78 static void
  79 reset_cursor_to_default_state (Gtk::StateType, Gtk::Entry* widget)
  80 {
  81         reset_cursor_to_default (widget);
  82 }
  83
  84 GainMeterBase::GainMeterBase (Session* s, bool horizontal, int fader_length, int fader_girth)
  85         : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()), 0.0, 1.0, 0.01, 0.1)
  86         , gain_automation_style_button ("")
  87         , gain_automation_state_button ("")
  88         , _data_type (DataType::AUDIO)
  89
  90 {
  91         using namespace Menu_Helpers;
  92
  93         set_session (s);
  94
  95         ignore_toggle = false;
  96         meter_menu = 0;
  97         next_release_selects = false;
  98         _width = Wide;
  99
 100         if (horizontal) {
 101                 gain_slider = manage (new HSliderController (&gain_adjustment, fader_length, fader_girth));
 102         } else {
 103                 gain_slider = manage (new VSliderController (&gain_adjustment, fader_length, fader_girth));
 104         }
 105
 106         level_meter = new LevelMeterHBox(_session);
 107
 108         level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
 109         meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
 110         meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
 111
 112         gain_slider->set_tweaks (PixFader::Tweaks(PixFader::NoButtonForward | PixFader::NoVerticalScroll));
 113         gain_slider->StartGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_start_touch));
 114         gain_slider->StopGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_stop_touch));
 115         gain_slider->set_name ("GainFader");
 116
 117         gain_display.set_name ("MixerStripGainDisplay");
 118         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 119         gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
 120         gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 121         gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 122         gain_display.set_alignment(0.5);
 123
 124         peak_display.set_name ("MixerStripPeakDisplay");
 125         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 126         max_peak = minus_infinity();
 127         peak_display.set_text (_("-inf"));
 128         peak_display.set_alignment(0.5);
 129
 130         /* stuff related to the fact that the peak display is not, in
 131            fact, supposed to be a text entry.
 132         */
 133         peak_display.set_events (peak_display.get_events() & ~(Gdk::EventMask (Gdk::LEAVE_NOTIFY_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::POINTER_MOTION_MASK)));
 134         peak_display.signal_map().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default), &peak_display));
 135         peak_display.signal_state_changed().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default_state), &peak_display));
 136         peak_display.unset_flags (Gtk::CAN_FOCUS);
 137         peak_display.set_editable (false);
 138
 139         gain_automation_style_button.set_name ("mixer strip button");
 140         gain_automation_state_button.set_name ("mixer strip button");
 141
 142         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 143         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 144
 145         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 146         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 147
 148         gain_automation_state_button.set_size_request(15, 15);
 149         gain_automation_style_button.set_size_request(15, 15);
 150
 151         gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 152         gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 153
 154         gain_astate_menu.set_name ("ArdourContextMenu");
 155         gain_astyle_menu.set_name ("ArdourContextMenu");
 156
 157         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted));
 158         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 159         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 160
 161         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 162         ResetRoutePeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_route_peak_display));
 163         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 164         RedrawMetrics.connect (sigc::mem_fun(*this, &GainMeterBase::redraw_metrics));
 165
 166         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 167         ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 168         DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 169 }
 170
 171 GainMeterBase::~GainMeterBase ()
 172 {
 173         delete meter_menu;
 174         delete level_meter;
 175 }
 176
 177 void
 178 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 179                              boost::shared_ptr<PeakMeter> pm,
 180                              boost::shared_ptr<Amp> amp)
 181 {
 182         connections.clear ();
 183         model_connections.drop_connections ();
 184
 185         if (!pm && !amp) {
 186                 level_meter->set_meter (0);
 187                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 188                 _meter.reset ();
 189                 _amp.reset ();
 190                 _route.reset ();
 191                 return;
 192         }
 193
 194         _meter = pm;
 195         _amp = amp;
 196         _route = r;
 197
 198         level_meter->set_meter (pm.get());
 199         gain_slider->set_controllable (amp->gain_control());
 200
 201         if (amp) {
 202                 amp->ConfigurationChanged.connect (
 203                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 204                         );
 205         }
 206
 207         setup_gain_adjustment ();
 208
 209         if (!_route || !_route->is_auditioner()) {
 210
 211                 using namespace Menu_Helpers;
 212
 213                 gain_astate_menu.items().clear ();
 214
 215                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 216                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 217                                                                           Evoral::Parameter(GainAutomation), (AutoState) ARDOUR::Off)));
 218                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 219                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 220                                                                     Evoral::Parameter(GainAutomation), (AutoState) Play)));
 221                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 222                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 223                                                                     Evoral::Parameter(GainAutomation), (AutoState) Write)));
 224                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 225                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 226                                                                     Evoral::Parameter(GainAutomation), (AutoState) Touch)));
 227
 228                 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
 229                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 230
 231                 boost::shared_ptr<AutomationControl> gc = amp->gain_control();
 232
 233                 gc->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 234                 gc->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
 235
 236                 gain_automation_state_changed ();
 237         }
 238
 239         amp->gain_control()->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 240
 241         gain_changed ();
 242         show_gain ();
 243         update_gain_sensitive ();
 244 }
 245
 246 void
 247 GainMeterBase::setup_gain_adjustment ()
 248 {
 249         if (!_amp) {
 250                 return;
 251         }
 252
 253         if (_previous_amp_output_streams == _amp->output_streams ()) {
 254                 return;
 255         }
 256
 257         ignore_toggle = true;
 258
 259         if (_amp->output_streams().n_midi() <=  _amp->output_streams().n_audio()) {
 260                 _data_type = DataType::AUDIO;
 261                 gain_adjustment.set_lower (0.0);
 262                 gain_adjustment.set_upper (1.0);
 263                 gain_adjustment.set_step_increment (0.01);
 264                 gain_adjustment.set_page_increment (0.1);
 265                 gain_slider->set_default_value (gain_to_slider_position (1));
 266         } else {
 267                 _data_type = DataType::MIDI;
 268                 gain_adjustment.set_lower (0.0);
 269                 gain_adjustment.set_upper (2.0);
 270                 gain_adjustment.set_step_increment (1.0/128.0);
 271                 gain_adjustment.set_page_increment (10.0/128.0);
 272                 gain_slider->set_default_value (1.0);
 273         }
 274
 275         ignore_toggle = false;
 276
 277         effective_gain_display ();
 278
 279         _previous_amp_output_streams = _amp->output_streams ();
 280 }
 281
 282 void
 283 GainMeterBase::hide_all_meters ()
 284 {
 285         level_meter->hide_meters();
 286 }
 287
 288 void
 289 GainMeter::hide_all_meters ()
 290 {
 291         GainMeterBase::hide_all_meters ();
 292 }
 293
 294 void
 295 GainMeterBase::setup_meters (int len)
 296 {
 297         int meter_width = 5;
 298         uint32_t meter_channels = 0;
 299         if (_meter) {
 300                 meter_channels = _meter->input_streams().n_total();
 301         } else if (_route) {
 302                 meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 303         }
 304
 305         switch (_width) {
 306                 case Wide:
 307                         //meter_ticks1_area.show();
 308                         //meter_ticks2_area.show();
 309                         meter_metric_area.show();
 310                         if (meter_channels == 1) {
 311                                 meter_width = 10;
 312                         }
 313                         break;
 314                 case Narrow:
 315                         if (meter_channels > 1) {
 316                                 meter_width = 4;
 317                         }
 318                         //meter_ticks1_area.hide();
 319                         //meter_ticks2_area.hide();
 320                         meter_metric_area.hide();
 321                         break;
 322         }
 323         level_meter->setup_meters(len, meter_width);
 324 }
 325
 326 void
 327 GainMeterBase::set_type (MeterType t)
 328 {
 329         level_meter->set_type(t);
 330 }
 331
 332 void
 333 GainMeter::setup_meters (int len)
 334 {
 335         switch (_width) {
 336                 case Wide:
 337                         {
 338                                 uint32_t meter_channels = 0;
 339                                 if (_meter) {
 340                                         meter_channels = _meter->input_streams().n_total();
 341                                 } else if (_route) {
 342                                         meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 343                                 }
 344                                 hbox.set_homogeneous(meter_channels < 7 ? true : false);
 345                         }
 346                         break;
 347                 case Narrow:
 348                         hbox.set_homogeneous(false);
 349                         break;
 350         }
 351         GainMeterBase::setup_meters (len);
 352 }
 353
 354 void
 355 GainMeter::set_type (MeterType t)
 356 {
 357         GainMeterBase::set_type (t);
 358 }
 359
 360 bool
 361 GainMeterBase::gain_key_press (GdkEventKey* ev)
 362 {
 363         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 364                 /* drop through to normal handling */
 365                 return false;
 366         }
 367         /* illegal key for gain entry */
 368         return true;
 369 }
 370
 371 bool
 372 GainMeterBase::peak_button_release (GdkEventButton* ev)
 373 {
 374         /* reset peak label */
 375
 376         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 377                 ResetAllPeakDisplays ();
 378         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 379                 if (_route) {
 380                         ResetGroupPeakDisplays (_route->route_group());
 381                 }
 382         } else {
 383                 ResetRoutePeakDisplays (_route.get());
 384         }
 385
 386         return true;
 387 }
 388
 389 void
 390 GainMeterBase::reset_peak_display ()
 391 {
 392         _meter->reset_max();
 393         level_meter->clear_meters();
 394         max_peak = -INFINITY;
 395         peak_display.set_text (_("-inf"));
 396         peak_display.set_name ("MixerStripPeakDisplay");
 397 }
 398
 399 void
 400 GainMeterBase::reset_route_peak_display (Route* route)
 401 {
 402         if (_route && _route.get() == route) {
 403                 reset_peak_display ();
 404         }
 405 }
 406
 407 void
 408 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 409 {
 410         if (_route && group == _route->route_group()) {
 411                 reset_peak_display ();
 412         }
 413 }
 414
 415 void
 416 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 417 {
 418         using namespace Menu_Helpers;
 419
 420         if (meter_menu == 0) {
 421                 meter_menu = new Gtk::Menu;
 422                 MenuList& items = meter_menu->items();
 423
 424                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 425                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 426                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 427                 items.push_back (SeparatorElem());
 428                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 429                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 430                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 431         }
 432
 433         meter_menu->popup (1, ev->time);
 434 }
 435
 436 bool
 437 GainMeterBase::gain_focused (GdkEventFocus* ev)
 438 {
 439         if (ev->in) {
 440                 gain_display.select_region (0, -1);
 441         } else {
 442                 gain_display.select_region (0, 0);
 443         }
 444         return false;
 445 }
 446
 447 void
 448 GainMeterBase::gain_activated ()
 449 {
 450         float f;
 451
 452         {
 453                 // Switch to user's preferred locale so that
 454                 // if they use different LC_NUMERIC conventions,
 455                 // we will honor them.
 456
 457                 PBD::LocaleGuard lg ("");
 458                 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 459                         return;
 460                 }
 461         }
 462
 463         /* clamp to displayable values */
 464         if (_data_type == DataType::AUDIO) {
 465                 f = min (f, 6.0f);
 466                 _amp->set_gain (dB_to_coefficient(f), this);
 467         } else {
 468                 f = min (fabs (f), 2.0f);
 469                 _amp->set_gain (f, this);
 470         }
 471
 472         if (gain_display.has_focus()) {
 473                 Gtk::Widget* w = gain_display.get_toplevel();
 474                 if (w) {
 475                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 476
 477                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 478
 479                         if (win) {
 480                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 481                                 if (f) {
 482                                         gtk_widget_grab_focus (f);
 483                                         return;
 484                                 }
 485                         }
 486                 }
 487         }
 488 }
 489
 490 void
 491 GainMeterBase::show_gain ()
 492 {
 493         char buf[32];
 494
 495         float v = gain_adjustment.get_value();
 496
 497         switch (_data_type) {
 498         case DataType::AUDIO:
 499                 if (v == 0.0) {
 500                         strcpy (buf, _("-inf"));
 501                 } else {
 502                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 503                 }
 504                 break;
 505         case DataType::MIDI:
 506                 snprintf (buf, sizeof (buf), "%.1f", v);
 507                 break;
 508         }
 509
 510         gain_display.set_text (buf);
 511 }
 512
 513 void
 514 GainMeterBase::gain_adjusted ()
 515 {
 516         gain_t value;
 517
 518         /* convert from adjustment range (0..1) to gain coefficient */
 519
 520         if (_data_type == DataType::AUDIO) {
 521                 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 522         } else {
 523                 value = gain_adjustment.get_value();
 524         }
 525
 526         if (!ignore_toggle) {
 527                 if (_route && _route->amp() == _amp) {
 528                         _route->set_gain (value, this);
 529                 } else {
 530                         _amp->set_gain (value, this);
 531                 }
 532         }
 533
 534         show_gain ();
 535 }
 536
 537 void
 538 GainMeterBase::effective_gain_display ()
 539 {
 540         float value = 0.0;
 541
 542         switch (_data_type) {
 543         case DataType::AUDIO:
 544                 value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
 545                 break;
 546         case DataType::MIDI:
 547                 value = _amp->gain ();
 548                 break;
 549         }
 550
 551         if (gain_adjustment.get_value() != value) {
 552                 ignore_toggle = true;
 553                 gain_adjustment.set_value (value);
 554                 ignore_toggle = false;
 555         }
 556 }
 557
 558 void
 559 GainMeterBase::gain_changed ()
 560 {
 561         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 562 }
 563
 564 void
 565 GainMeterBase::set_meter_strip_name (const char * name)
 566 {
 567         char tmp[256];
 568         meter_metric_area.set_name (name);
 569         sprintf(tmp, "Mark%sLeft", name);
 570         meter_ticks1_area.set_name (tmp);
 571         sprintf(tmp, "Mark%sRight", name);
 572         meter_ticks2_area.set_name (tmp);
 573 }
 574
 575 void
 576 GainMeterBase::set_fader_name (const char * name)
 577 {
 578         gain_slider->set_name (name);
 579 }
 580
 581 void
 582 GainMeterBase::update_gain_sensitive ()
 583 {
 584         bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
 585         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 586 }
 587
 588 static MeterPoint
 589 next_meter_point (MeterPoint mp)
 590 {
 591         switch (mp) {
 592         case MeterInput:
 593                 return MeterPreFader;
 594                 break;
 595
 596         case MeterPreFader:
 597                 return MeterPostFader;
 598                 break;
 599
 600         case MeterPostFader:
 601                 return MeterOutput;
 602                 break;
 603
 604         case MeterOutput:
 605                 return MeterCustom;
 606                 break;
 607
 608         case MeterCustom:
 609                 return MeterInput;
 610                 break;
 611         }
 612
 613         /*NOTREACHED*/
 614         return MeterInput;
 615 }
 616
 617 gint
 618 GainMeterBase::meter_press(GdkEventButton* ev)
 619 {
 620         wait_for_release = false;
 621
 622         if (!_route) {
 623                 return FALSE;
 624         }
 625
 626         if (!ignore_toggle) {
 627
 628                 if (Keyboard::is_context_menu_event (ev)) {
 629
 630                         // no menu at this time.
 631
 632                 } else {
 633
 634                         if (Keyboard::is_button2_event(ev)) {
 635
 636                                 // Primary-button2 click is the midi binding click
 637                                 // button2-click is "momentary"
 638
 639                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 640                                         wait_for_release = true;
 641                                         old_meter_point = _route->meter_point ();
 642                                 }
 643                         }
 644
 645                         if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
 646
 647                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 648
 649                                         /* Primary+Tertiary-click applies change to all routes */
 650
 651                                         _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
 652
 653
 654                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 655
 656                                         /* Primary-click: solo mix group.
 657                                            NOTE: Primary-button2 is MIDI learn.
 658                                         */
 659
 660                                         if (ev->button == 1) {
 661                                                 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 662                                         }
 663
 664                                 } else {
 665
 666                                         /* click: change just this route */
 667
 668                                         // XXX no undo yet
 669
 670                                         _route->set_meter_point (next_meter_point (_route->meter_point()));
 671                                 }
 672                         }
 673                 }
 674         }
 675
 676         return true;
 677
 678 }
 679
 680 gint
 681 GainMeterBase::meter_release(GdkEventButton*)
 682 {
 683         if (!ignore_toggle) {
 684                 if (wait_for_release) {
 685                         wait_for_release = false;
 686
 687                         if (_route) {
 688                                 set_meter_point (*_route, old_meter_point);
 689                         }
 690                 }
 691         }
 692
 693         return true;
 694 }
 695
 696 void
 697 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 698 {
 699         route.set_meter_point (mp);
 700 }
 701
 702 void
 703 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 704 {
 705         RouteGroup* route_group;
 706
 707         if ((route_group = route.route_group ()) != 0) {
 708                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 709         } else {
 710                 route.set_meter_point (mp);
 711         }
 712 }
 713
 714 void
 715 GainMeterBase::meter_point_clicked ()
 716 {
 717         if (_route) {
 718                 /* WHAT? */
 719         }
 720 }
 721
 722 void
 723 GainMeterBase::amp_start_touch ()
 724 {
 725         _amp->gain_control()->start_touch (_amp->session().transport_frame());
 726 }
 727
 728 void
 729 GainMeterBase::amp_stop_touch ()
 730 {
 731         _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
 732 }
 733
 734 gint
 735 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 736 {
 737         if (ev->type == GDK_BUTTON_RELEASE) {
 738                 return TRUE;
 739         }
 740
 741         switch (ev->button) {
 742                 case 1:
 743                         gain_astate_menu.popup (1, ev->time);
 744                         break;
 745                 default:
 746                         break;
 747         }
 748
 749         return TRUE;
 750 }
 751
 752 gint
 753 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 754 {
 755         if (ev->type == GDK_BUTTON_RELEASE) {
 756                 return TRUE;
 757         }
 758
 759         switch (ev->button) {
 760         case 1:
 761                 gain_astyle_menu.popup (1, ev->time);
 762                 break;
 763         default:
 764                 break;
 765         }
 766         return TRUE;
 767 }
 768
 769 string
 770 GainMeterBase::astate_string (AutoState state)
 771 {
 772         return _astate_string (state, false);
 773 }
 774
 775 string
 776 GainMeterBase::short_astate_string (AutoState state)
 777 {
 778         return _astate_string (state, true);
 779 }
 780
 781 string
 782 GainMeterBase::_astate_string (AutoState state, bool shrt)
 783 {
 784         string sstr;
 785
 786         switch (state) {
 787         case ARDOUR::Off:
 788                 sstr = (shrt ? "M" : _("M"));
 789                 break;
 790         case Play:
 791                 sstr = (shrt ? "P" : _("P"));
 792                 break;
 793         case Touch:
 794                 sstr = (shrt ? "T" : _("T"));
 795                 break;
 796         case Write:
 797                 sstr = (shrt ? "W" : _("W"));
 798                 break;
 799         }
 800
 801         return sstr;
 802 }
 803
 804 string
 805 GainMeterBase::astyle_string (AutoStyle style)
 806 {
 807         return _astyle_string (style, false);
 808 }
 809
 810 string
 811 GainMeterBase::short_astyle_string (AutoStyle style)
 812 {
 813         return _astyle_string (style, true);
 814 }
 815
 816 string
 817 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 818 {
 819         if (style & Trim) {
 820                 return _("Trim");
 821         } else {
 822                 /* XXX it might different in different languages */
 823
 824                 return (shrt ? _("Abs") : _("Abs"));
 825         }
 826 }
 827
 828 void
 829 GainMeterBase::gain_automation_style_changed ()
 830 {
 831         switch (_width) {
 832         case Wide:
 833                 gain_automation_style_button.set_text (astyle_string(_amp->gain_control()->alist()->automation_style()));
 834                 break;
 835         case Narrow:
 836                 gain_automation_style_button.set_text  (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
 837                 break;
 838         }
 839 }
 840
 841 void
 842 GainMeterBase::gain_automation_state_changed ()
 843 {
 844         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
 845
 846         bool x;
 847
 848         switch (_width) {
 849         case Wide:
 850                 gain_automation_state_button.set_text (astate_string(_amp->gain_control()->alist()->automation_state()));
 851                 break;
 852         case Narrow:
 853                 gain_automation_state_button.set_text (short_astate_string(_amp->gain_control()->alist()->automation_state()));
 854                 break;
 855         }
 856
 857         x = (_amp->gain_control()->alist()->automation_state() != ARDOUR::Off);
 858
 859         if (gain_automation_state_button.get_active() != x) {
 860                 ignore_toggle = true;
 861                 gain_automation_state_button.set_active (x);
 862                 ignore_toggle = false;
 863         }
 864
 865         update_gain_sensitive ();
 866
 867         /* start watching automation so that things move */
 868
 869         gain_watching.disconnect();
 870
 871         if (x) {
 872                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 873         }
 874 }
 875
 876 const ChanCount
 877 GainMeterBase::meter_channels() const
 878 {
 879                 if (_meter) { return _meter->input_streams(); }
 880                 else { return ChanCount(); }
 881 }
 882 void
 883 GainMeterBase::update_meters()
 884 {
 885         char buf[32];
 886         float mpeak = level_meter->update_meters();
 887
 888         if (mpeak > max_peak) {
 889                 max_peak = mpeak;
 890                 if (mpeak <= -200.0f) {
 891                         peak_display.set_text (_("-inf"));
 892                 } else {
 893                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 894                         peak_display.set_text (buf);
 895                 }
 896         }
 897         if (mpeak >= Config->get_meter_peak()) {
 898                 peak_display.set_name ("MixerStripPeakDisplayPeak");
 899         }
 900 }
 901
 902 void GainMeterBase::color_handler(bool /*dpi*/)
 903 {
 904         setup_meters();
 905 }
 906
 907 void
 908 GainMeterBase::set_width (Width w, int len)
 909 {
 910         _width = w;
 911         int meter_width = 5;
 912         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 913                 meter_width = 10;
 914         }
 915         level_meter->setup_meters(len, meter_width);
 916 }
 917
 918
 919 void
 920 GainMeterBase::on_theme_changed()
 921 {
 922 }
 923
 924 void
 925 GainMeterBase::redraw_metrics()
 926 {
 927         meter_metric_area.queue_draw ();
 928         meter_ticks1_area.queue_draw ();
 929         meter_ticks2_area.queue_draw ();
 930 }
 931
 932 GainMeter::GainMeter (Session* s, int fader_length)
 933         : GainMeterBase (s, false, fader_length, 24)
 934         , gain_display_box(true, 0)
 935         , hbox(true, 2)
 936 {
 937         if (gain_display.get_parent()) {
 938                 gain_display.get_parent()->remove (gain_display);
 939         }
 940         gain_display_box.pack_start (gain_display, true, true);
 941
 942         if (peak_display.get_parent()) {
 943                 peak_display.get_parent()->remove (gain_display);
 944         }
 945         gain_display_box.pack_start (peak_display, true, true);
 946
 947         meter_metric_area.set_name ("AudioTrackMetrics");
 948         meter_metric_area.set_size_request(24, -1);
 949
 950         gain_automation_style_button.set_name ("mixer strip button");
 951         gain_automation_state_button.set_name ("mixer strip button");
 952
 953         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 954         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 955
 956         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 957         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 958
 959         gain_automation_state_button.set_size_request(15, 15);
 960         gain_automation_style_button.set_size_request(15, 15);
 961
 962         fader_vbox = manage (new Gtk::VBox());
 963         fader_vbox->set_spacing (0);
 964         fader_vbox->pack_start (*gain_slider, true, true);
 965
 966         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 967         fader_alignment.add (*fader_vbox);
 968
 969         hbox.pack_start (fader_alignment, true, true);
 970
 971         set_spacing (2);
 972
 973         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 974         pack_start (hbox, Gtk::PACK_SHRINK);
 975
 976         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 977         meter_alignment.add (*level_meter);
 978
 979         meter_metric_area.signal_expose_event().connect (
 980                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 981
 982         meter_ticks1_area.set_size_request(3,-1);
 983         meter_ticks2_area.set_size_request(3,-1);
 984
 985         meter_ticks1_area.signal_expose_event().connect (
 986                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
 987         meter_ticks2_area.signal_expose_event().connect (
 988                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
 989
 990         meter_hbox.pack_start (meter_ticks1_area, false, false);
 991         meter_hbox.pack_start (meter_alignment, false, false);
 992         meter_hbox.pack_start (meter_ticks2_area, false, false);
 993         meter_hbox.pack_start (meter_metric_area, false, false);
 994 }
 995
 996 GainMeter::~GainMeter () { }
 997
 998 void
 999 GainMeter::set_controls (boost::shared_ptr<Route> r,
1000                          boost::shared_ptr<PeakMeter> meter,
1001                          boost::shared_ptr<Amp> amp)
1002 {
1003         if (meter_hbox.get_parent()) {
1004                 hbox.remove (meter_hbox);
1005         }
1006
1007 //      if (gain_automation_state_button.get_parent()) {
1008 //              fader_vbox->remove (gain_automation_state_button);
1009 //      }
1010
1011         GainMeterBase::set_controls (r, meter, amp);
1012
1013         if (_meter) {
1014                 _meter->ConfigurationChanged.connect (
1015                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
1016                         );
1017                 _meter->TypeChanged.connect (
1018                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_type_changed, this, _1), gui_context()
1019                         );
1020
1021                 meter_configuration_changed (_meter->input_streams ());
1022         }
1023
1024
1025         if (_route) {
1026                 _route->active_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::route_active_changed, this), gui_context ());
1027         }
1028
1029         /*
1030            if we have a non-hidden route (ie. we're not the click or the auditioner),
1031            pack some route-dependent stuff.
1032         */
1033
1034         hbox.pack_start (meter_hbox, true, true);
1035
1036 //      if (r && !r->is_auditioner()) {
1037 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
1038 //      }
1039
1040         hbox.show_all ();
1041         setup_meters ();
1042 }
1043
1044 int
1045 GainMeter::get_gm_width ()
1046 {
1047         Gtk::Requisition sz;
1048         int min_w = 0;
1049         sz.width = 0;
1050         meter_metric_area.size_request (sz);
1051         min_w += sz.width;
1052         level_meter->size_request (sz);
1053         min_w += sz.width;
1054
1055         fader_alignment.size_request (sz);
1056         if (_width == Wide)
1057                 return max(sz.width * 2, min_w * 2) + 6;
1058         else
1059                 return sz.width + min_w + 6;
1060
1061 }
1062
1063 gint
1064 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1065 {
1066         if (!_route) {
1067                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1068                 return meter_expose_metrics(ev, MeterPeak, _types, &meter_metric_area);
1069         }
1070         return meter_expose_metrics(ev, _route->meter_type(), _types, &meter_metric_area);
1071 }
1072
1073 gint
1074 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
1075 {
1076         if (!_route) {
1077                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1078                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks1_area);
1079         }
1080         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks1_area);
1081 }
1082
1083 gint
1084 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1085 {
1086         if (!_route) {
1087                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1088                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks2_area);
1089         }
1090         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks2_area);
1091 }
1092
1093 void
1094 GainMeter::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
1095 {
1096         gain_display.queue_draw();
1097         peak_display.queue_draw();
1098 }
1099
1100 boost::shared_ptr<PBD::Controllable>
1101 GainMeterBase::get_controllable()
1102 {
1103         if (_amp) {
1104                 return _amp->gain_control();
1105         } else {
1106                 return boost::shared_ptr<PBD::Controllable>();
1107         }
1108 }
1109
1110 bool
1111 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1112 {
1113         return !!LevelMeterButtonPress (ev); /* EMIT SIGNAL */
1114 }
1115
1116 void
1117 GainMeter::meter_configuration_changed (ChanCount c)
1118 {
1119         int type = 0;
1120         _types.clear ();
1121
1122         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1123                 if (c.get (*i) > 0) {
1124                         _types.push_back (*i);
1125                         type |= 1 << (*i);
1126                 }
1127         }
1128
1129         if (_route
1130                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1131                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1132                         ) {
1133                 if (_route->active()) {
1134                         set_meter_strip_name ("AudioBusMetrics");
1135                 } else {
1136                         set_meter_strip_name ("AudioBusMetricsInactive");
1137                 }
1138         }
1139         else if (
1140                            (type == (1 << DataType::MIDI))
1141                         || (_route && boost::dynamic_pointer_cast<MidiTrack>(_route))
1142                         ) {
1143                 if (!_route || _route->active()) {
1144                         set_meter_strip_name ("MidiTrackMetrics");
1145                 } else {
1146                         set_meter_strip_name ("MidiTrackMetricsInactive");
1147                 }
1148         }
1149         else if (type == (1 << DataType::AUDIO)) {
1150                 if (!_route || _route->active()) {
1151                         set_meter_strip_name ("AudioTrackMetrics");
1152                 } else {
1153                         set_meter_strip_name ("AudioTrackMetricsInactive");
1154                 }
1155         } else {
1156                 if (!_route || _route->active()) {
1157                         set_meter_strip_name ("AudioMidiTrackMetrics");
1158                 } else {
1159                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1160                 }
1161         }
1162
1163         setup_meters();
1164         meter_clear_pattern_cache(4);
1165         on_style_changed(Glib::RefPtr<Gtk::Style>());
1166 }
1167
1168 void
1169 GainMeter::route_active_changed ()
1170 {
1171         if (_meter) {
1172                 meter_configuration_changed (_meter->input_streams ());
1173         }
1174 }
1175
1176 void
1177 GainMeter::meter_type_changed (MeterType t)
1178 {
1179         _route->set_meter_type(t);
1180         RedrawMetrics();
1181 }