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 <gtkmm/style.h>
  29 #include <gdkmm/color.h>
  30 #include <gtkmm2ext/utils.h>
  31 #include <gtkmm2ext/fastmeter.h>
  32 #include <gtkmm2ext/barcontroller.h>
  33 #include <gtkmm2ext/gtk_ui.h>
  34 #include "midi++/manager.h"
  35 #include "pbd/fastlog.h"
  36 #include "pbd/stacktrace.h"
  37
  38 #include "ardour_ui.h"
  39 #include "gain_meter.h"
  40 #include "global_signals.h"
  41 #include "logmeter.h"
  42 #include "gui_thread.h"
  43 #include "keyboard.h"
  44 #include "public_editor.h"
  45 #include "utils.h"
  46
  47 #include "ardour/session.h"
  48 #include "ardour/route.h"
  49 #include "ardour/meter.h"
  50
  51 #include "i18n.h"
  52
  53 using namespace ARDOUR;
  54 using namespace PBD;
  55 using namespace Gtkmm2ext;
  56 using namespace Gtk;
  57 using namespace std;
  58 using Gtkmm2ext::Keyboard;
  59
  60 sigc::signal<void> GainMeterBase::ResetAllPeakDisplays;
  61 sigc::signal<void,RouteGroup*> GainMeterBase::ResetGroupPeakDisplays;
  62
  63 GainMeter::MetricPatterns GainMeter::metric_patterns;
  64
  65 GainMeterBase::GainMeterBase (Session* s, bool horizontal, int fader_length, int fader_girth)
  66         : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()), 0.0, 1.0, 0.01, 0.1)
  67         , gain_automation_style_button ("")
  68         , gain_automation_state_button ("")
  69         , style_changed (false)
  70         , dpi_changed (false)
  71         , _data_type (DataType::AUDIO)
  72
  73 {
  74         using namespace Menu_Helpers;
  75
  76         set_session (s);
  77
  78         ignore_toggle = false;
  79         meter_menu = 0;
  80         next_release_selects = false;
  81         _width = Wide;
  82
  83         if (horizontal) {
  84                 gain_slider = manage (new HSliderController (&gain_adjustment, fader_length, fader_girth, false));
  85         } else {
  86                 gain_slider = manage (new VSliderController (&gain_adjustment, fader_length, fader_girth, false));
  87         }
  88
  89         level_meter = new LevelMeter(_session);
  90
  91         level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
  92         meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
  93         meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
  94
  95         gain_slider->signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_press), false);
  96         gain_slider->signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_release), false);
  97         gain_slider->set_name ("GainFader");
  98
  99         gain_display.set_name ("MixerStripGainDisplay");
 100         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 101         gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
 102         gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 103         gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 104
 105         peak_display.set_name ("MixerStripPeakDisplay");
 106         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 107         max_peak = minus_infinity();
 108         peak_display.set_label (_("-inf"));
 109         peak_display.unset_flags (Gtk::CAN_FOCUS);
 110
 111         gain_automation_style_button.set_name ("mixer strip button");
 112         gain_automation_state_button.set_name ("mixer strip button");
 113
 114         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 115         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 116
 117         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 118         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 119
 120         gain_automation_state_button.set_size_request(15, 15);
 121         gain_automation_style_button.set_size_request(15, 15);
 122
 123         gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 124         gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 125
 126         gain_astate_menu.set_name ("ArdourContextMenu");
 127         gain_astyle_menu.set_name ("ArdourContextMenu");
 128
 129         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted));
 130         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 131         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 132
 133         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 134         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 135
 136         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 137         ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 138         DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 139
 140 //      PBD::ScopedConnection _config_connection;
 141 //      Config->ParameterChanged.connect ( _config_connection, MISSING_INVALIDATOR, boost::bind(&GainMeterBase::set_flat_buttons, this, _1), gui_context() );
 142 }
 143
 144 void
 145 GainMeterBase::set_flat_buttons ()
 146 {
 147 printf("set_flat_butt\n");
 148 //      gain_slider->set_flat_buttons( ARDOUR_UI::config()->flat_buttons.get() );
 149 }
 150
 151 GainMeterBase::~GainMeterBase ()
 152 {
 153         delete meter_menu;
 154         delete level_meter;
 155 }
 156
 157 void
 158 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 159                              boost::shared_ptr<PeakMeter> pm,
 160                              boost::shared_ptr<Amp> amp)
 161 {
 162         connections.clear ();
 163         model_connections.drop_connections ();
 164
 165         if (!pm && !amp) {
 166                 level_meter->set_meter (0);
 167                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 168                 _meter.reset ();
 169                 _amp.reset ();
 170                 _route.reset ();
 171                 return;
 172         }
 173
 174         _meter = pm;
 175         _amp = amp;
 176         _route = r;
 177
 178         level_meter->set_meter (pm.get());
 179         gain_slider->set_controllable (amp->gain_control());
 180
 181         if (amp) {
 182                 amp->ConfigurationChanged.connect (
 183                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 184                         );
 185         }
 186
 187         setup_gain_adjustment ();
 188
 189         if (!_route || !_route->is_hidden()) {
 190
 191                 using namespace Menu_Helpers;
 192
 193                 gain_astate_menu.items().clear ();
 194
 195                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 196                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 197                                                                           Evoral::Parameter(GainAutomation), (AutoState) ARDOUR::Off)));
 198                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 199                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 200                                                                     Evoral::Parameter(GainAutomation), (AutoState) Play)));
 201                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 202                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 203                                                                     Evoral::Parameter(GainAutomation), (AutoState) Write)));
 204                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 205                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 206                                                                     Evoral::Parameter(GainAutomation), (AutoState) Touch)));
 207
 208                 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
 209                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 210
 211                 boost::shared_ptr<AutomationControl> gc = amp->gain_control();
 212
 213                 gc->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 214                 gc->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
 215
 216                 gain_automation_state_changed ();
 217         }
 218
 219         amp->gain_control()->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 220
 221         gain_changed ();
 222         show_gain ();
 223         update_gain_sensitive ();
 224 }
 225
 226 void
 227 GainMeterBase::setup_gain_adjustment ()
 228 {
 229         if (!_amp) {
 230                 return;
 231         }
 232
 233         if (_previous_amp_output_streams == _amp->output_streams ()) {
 234                 return;
 235         }
 236
 237         ignore_toggle = true;
 238
 239         if (_amp->output_streams().n_midi() == 0) {
 240                 _data_type = DataType::AUDIO;
 241                 gain_adjustment.set_lower (0.0);
 242                 gain_adjustment.set_upper (1.0);
 243                 gain_adjustment.set_step_increment (0.01);
 244                 gain_adjustment.set_page_increment (0.1);
 245                 gain_slider->set_default_value (gain_to_slider_position (1));
 246         } else {
 247                 _data_type = DataType::MIDI;
 248                 gain_adjustment.set_lower (0.0);
 249                 gain_adjustment.set_upper (2.0);
 250                 gain_adjustment.set_step_increment (1.0/128.0);
 251                 gain_adjustment.set_page_increment (10.0/128.0);
 252                 gain_slider->set_default_value (1.0);
 253         }
 254
 255         ignore_toggle = false;
 256
 257         effective_gain_display ();
 258
 259         _previous_amp_output_streams = _amp->output_streams ();
 260 }
 261
 262 void
 263 GainMeterBase::hide_all_meters ()
 264 {
 265         level_meter->hide_meters();
 266 }
 267
 268 void
 269 GainMeter::hide_all_meters ()
 270 {
 271         bool remove_metric_area = false;
 272
 273         GainMeterBase::hide_all_meters ();
 274
 275         if (remove_metric_area) {
 276                 if (meter_metric_area.get_parent()) {
 277                         level_meter->remove (meter_metric_area);
 278                 }
 279         }
 280 }
 281
 282 void
 283 GainMeterBase::setup_meters (int len)
 284 {
 285         level_meter->setup_meters(len, 5);
 286 }
 287
 288 void
 289 GainMeter::setup_meters (int len)
 290 {
 291         if (!meter_metric_area.get_parent()) {
 292                 level_meter->pack_end (meter_metric_area, false, false);
 293                 meter_metric_area.show_all ();
 294         }
 295         GainMeterBase::setup_meters (len);
 296 }
 297
 298 bool
 299 GainMeterBase::gain_key_press (GdkEventKey* ev)
 300 {
 301         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 302                 /* drop through to normal handling */
 303                 return false;
 304         }
 305         /* illegal key for gain entry */
 306         return true;
 307 }
 308
 309 bool
 310 GainMeterBase::peak_button_release (GdkEventButton* ev)
 311 {
 312         /* reset peak label */
 313
 314         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 315                 ResetAllPeakDisplays ();
 316         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 317                 if (_route) {
 318                         ResetGroupPeakDisplays (_route->route_group());
 319                 }
 320         } else {
 321                 reset_peak_display ();
 322         }
 323
 324         return true;
 325 }
 326
 327 void
 328 GainMeterBase::reset_peak_display ()
 329 {
 330         _meter->reset_max();
 331         level_meter->clear_meters();
 332         max_peak = -INFINITY;
 333         peak_display.set_label (_("-Inf"));
 334         peak_display.set_name ("MixerStripPeakDisplay");
 335 }
 336
 337 void
 338 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 339 {
 340         if (_route && group == _route->route_group()) {
 341                 reset_peak_display ();
 342         }
 343 }
 344
 345 void
 346 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 347 {
 348         using namespace Menu_Helpers;
 349
 350         if (meter_menu == 0) {
 351                 meter_menu = new Gtk::Menu;
 352                 MenuList& items = meter_menu->items();
 353
 354                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 355                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 356                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 357                 items.push_back (SeparatorElem());
 358                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 359                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 360                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 361         }
 362
 363         meter_menu->popup (1, ev->time);
 364 }
 365
 366 bool
 367 GainMeterBase::gain_focused (GdkEventFocus* ev)
 368 {
 369         if (ev->in) {
 370                 gain_display.select_region (0, -1);
 371         } else {
 372                 gain_display.select_region (0, 0);
 373         }
 374         return false;
 375 }
 376
 377 void
 378 GainMeterBase::gain_activated ()
 379 {
 380         float f;
 381
 382         {
 383                 // Switch to user's preferred locale so that
 384                 // if they use different LC_NUMERIC conventions,
 385                 // we will honor them.
 386
 387                 PBD::LocaleGuard lg ("");
 388                 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 389                         return;
 390                 }
 391         }
 392
 393         /* clamp to displayable values */
 394         if (_data_type == DataType::AUDIO) {
 395                 f = min (f, 6.0f);
 396                 _amp->set_gain (dB_to_coefficient(f), this);
 397         } else {
 398                 f = min (fabs (f), 2.0f);
 399                 _amp->set_gain (f, this);
 400         }
 401
 402         if (gain_display.has_focus()) {
 403                 Gtk::Widget* w = gain_display.get_toplevel();
 404                 if (w) {
 405                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 406
 407                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 408
 409                         if (win) {
 410                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 411                                 if (f) {
 412                                         gtk_widget_grab_focus (f);
 413                                         return;
 414                                 }
 415                         }
 416                 }
 417         }
 418 }
 419
 420 void
 421 GainMeterBase::show_gain ()
 422 {
 423         char buf[32];
 424
 425         float v = gain_adjustment.get_value();
 426
 427         switch (_data_type) {
 428         case DataType::AUDIO:
 429                 if (v == 0.0) {
 430                         strcpy (buf, _("-inf"));
 431                 } else {
 432                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 433                 }
 434                 break;
 435         case DataType::MIDI:
 436                 snprintf (buf, sizeof (buf), "%.1f", v);
 437                 break;
 438         }
 439
 440         gain_display.set_text (buf);
 441 }
 442
 443 void
 444 GainMeterBase::gain_adjusted ()
 445 {
 446         gain_t value;
 447
 448         /* convert from adjustment range (0..1) to gain coefficient */
 449
 450         if (_data_type == DataType::AUDIO) {
 451                 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 452         } else {
 453                 value = gain_adjustment.get_value();
 454         }
 455
 456         if (!ignore_toggle) {
 457                 if (_route && _route->amp() == _amp) {
 458                         _route->set_gain (value, this);
 459                 } else {
 460                         _amp->set_gain (value, this);
 461                 }
 462         }
 463
 464         show_gain ();
 465 }
 466
 467 void
 468 GainMeterBase::effective_gain_display ()
 469 {
 470         float value = 0.0;
 471
 472         switch (_data_type) {
 473         case DataType::AUDIO:
 474                 value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
 475                 break;
 476         case DataType::MIDI:
 477                 value = _amp->gain ();
 478                 break;
 479         }
 480
 481         if (gain_adjustment.get_value() != value) {
 482                 ignore_toggle = true;
 483                 gain_adjustment.set_value (value);
 484                 ignore_toggle = false;
 485         }
 486 }
 487
 488 void
 489 GainMeterBase::gain_changed ()
 490 {
 491         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 492 }
 493
 494 void
 495 GainMeterBase::set_meter_strip_name (const char * name)
 496 {
 497         meter_metric_area.set_name (name);
 498 }
 499
 500 void
 501 GainMeterBase::set_fader_name (const char * name)
 502 {
 503         gain_slider->set_name (name);
 504 }
 505
 506 void
 507 GainMeterBase::update_gain_sensitive ()
 508 {
 509         bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
 510         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 511 }
 512
 513 static MeterPoint
 514 next_meter_point (MeterPoint mp)
 515 {
 516         switch (mp) {
 517         case MeterInput:
 518                 return MeterPreFader;
 519                 break;
 520
 521         case MeterPreFader:
 522                 return MeterPostFader;
 523                 break;
 524
 525         case MeterPostFader:
 526                 return MeterOutput;
 527                 break;
 528
 529         case MeterOutput:
 530                 return MeterCustom;
 531                 break;
 532
 533         case MeterCustom:
 534                 return MeterInput;
 535                 break;
 536         }
 537
 538         /*NOTREACHED*/
 539         return MeterInput;
 540 }
 541
 542 gint
 543 GainMeterBase::meter_press(GdkEventButton* ev)
 544 {
 545         wait_for_release = false;
 546
 547         if (!_route) {
 548                 return FALSE;
 549         }
 550
 551         if (!ignore_toggle) {
 552
 553                 if (Keyboard::is_context_menu_event (ev)) {
 554
 555                         // no menu at this time.
 556
 557                 } else {
 558
 559                         if (Keyboard::is_button2_event(ev)) {
 560
 561                                 // Primary-button2 click is the midi binding click
 562                                 // button2-click is "momentary"
 563
 564                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 565                                         wait_for_release = true;
 566                                         old_meter_point = _route->meter_point ();
 567                                 }
 568                         }
 569
 570                         if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
 571
 572                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 573
 574                                         /* Primary+Tertiary-click applies change to all routes */
 575
 576                                         _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
 577
 578
 579                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 580
 581                                         /* Primary-click: solo mix group.
 582                                            NOTE: Primary-button2 is MIDI learn.
 583                                         */
 584
 585                                         if (ev->button == 1) {
 586                                                 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 587                                         }
 588
 589                                 } else {
 590
 591                                         /* click: change just this route */
 592
 593                                         // XXX no undo yet
 594
 595                                         _route->set_meter_point (next_meter_point (_route->meter_point()));
 596                                 }
 597                         }
 598                 }
 599         }
 600
 601         return true;
 602
 603 }
 604
 605 gint
 606 GainMeterBase::meter_release(GdkEventButton*)
 607 {
 608         if (!ignore_toggle) {
 609                 if (wait_for_release) {
 610                         wait_for_release = false;
 611
 612                         if (_route) {
 613                                 set_meter_point (*_route, old_meter_point);
 614                         }
 615                 }
 616         }
 617
 618         return true;
 619 }
 620
 621 void
 622 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 623 {
 624         route.set_meter_point (mp);
 625 }
 626
 627 void
 628 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 629 {
 630         RouteGroup* route_group;
 631
 632         if ((route_group = route.route_group ()) != 0) {
 633                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 634         } else {
 635                 route.set_meter_point (mp);
 636         }
 637 }
 638
 639 void
 640 GainMeterBase::meter_point_clicked ()
 641 {
 642         if (_route) {
 643                 /* WHAT? */
 644         }
 645 }
 646
 647 bool
 648 GainMeterBase::gain_slider_button_press (GdkEventButton* ev)
 649 {
 650         switch (ev->type) {
 651         case GDK_BUTTON_PRESS:
 652                 _amp->gain_control()->start_touch (_amp->session().transport_frame());
 653                 break;
 654         default:
 655                 return false;
 656         }
 657
 658         return false;
 659 }
 660
 661 bool
 662 GainMeterBase::gain_slider_button_release (GdkEventButton*)
 663 {
 664         _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
 665         return false;
 666 }
 667
 668 gint
 669 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 670 {
 671         if (ev->type == GDK_BUTTON_RELEASE) {
 672                 return TRUE;
 673         }
 674
 675         switch (ev->button) {
 676                 case 1:
 677                         gain_astate_menu.popup (1, ev->time);
 678                         break;
 679                 default:
 680                         break;
 681         }
 682
 683         return TRUE;
 684 }
 685
 686 gint
 687 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 688 {
 689         if (ev->type == GDK_BUTTON_RELEASE) {
 690                 return TRUE;
 691         }
 692
 693         switch (ev->button) {
 694         case 1:
 695                 gain_astyle_menu.popup (1, ev->time);
 696                 break;
 697         default:
 698                 break;
 699         }
 700         return TRUE;
 701 }
 702
 703 string
 704 GainMeterBase::astate_string (AutoState state)
 705 {
 706         return _astate_string (state, false);
 707 }
 708
 709 string
 710 GainMeterBase::short_astate_string (AutoState state)
 711 {
 712         return _astate_string (state, true);
 713 }
 714
 715 string
 716 GainMeterBase::_astate_string (AutoState state, bool shrt)
 717 {
 718         string sstr;
 719
 720         switch (state) {
 721         case ARDOUR::Off:
 722                 sstr = (shrt ? "M" : _("M"));
 723                 break;
 724         case Play:
 725                 sstr = (shrt ? "P" : _("P"));
 726                 break;
 727         case Touch:
 728                 sstr = (shrt ? "T" : _("T"));
 729                 break;
 730         case Write:
 731                 sstr = (shrt ? "W" : _("W"));
 732                 break;
 733         }
 734
 735         return sstr;
 736 }
 737
 738 string
 739 GainMeterBase::astyle_string (AutoStyle style)
 740 {
 741         return _astyle_string (style, false);
 742 }
 743
 744 string
 745 GainMeterBase::short_astyle_string (AutoStyle style)
 746 {
 747         return _astyle_string (style, true);
 748 }
 749
 750 string
 751 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 752 {
 753         if (style & Trim) {
 754                 return _("Trim");
 755         } else {
 756                 /* XXX it might different in different languages */
 757
 758                 return (shrt ? _("Abs") : _("Abs"));
 759         }
 760 }
 761
 762 void
 763 GainMeterBase::gain_automation_style_changed ()
 764 {
 765         switch (_width) {
 766         case Wide:
 767                 gain_automation_style_button.set_text (astyle_string(_amp->gain_control()->alist()->automation_style()));
 768                 break;
 769         case Narrow:
 770                 gain_automation_style_button.set_text  (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
 771                 break;
 772         }
 773 }
 774
 775 void
 776 GainMeterBase::gain_automation_state_changed ()
 777 {
 778         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
 779
 780         bool x;
 781
 782         switch (_width) {
 783         case Wide:
 784                 gain_automation_state_button.set_text (astate_string(_amp->gain_control()->alist()->automation_state()));
 785                 break;
 786         case Narrow:
 787                 gain_automation_state_button.set_text (short_astate_string(_amp->gain_control()->alist()->automation_state()));
 788                 break;
 789         }
 790
 791         x = (_amp->gain_control()->alist()->automation_state() != ARDOUR::Off);
 792
 793         if (gain_automation_state_button.get_active() != x) {
 794                 ignore_toggle = true;
 795                 gain_automation_state_button.set_active (x);
 796                 ignore_toggle = false;
 797         }
 798
 799         update_gain_sensitive ();
 800
 801         /* start watching automation so that things move */
 802
 803         gain_watching.disconnect();
 804
 805         if (x) {
 806                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 807         }
 808 }
 809
 810 void
 811 GainMeterBase::update_meters()
 812 {
 813         char buf[32];
 814         float mpeak = level_meter->update_meters();
 815
 816         if (mpeak > max_peak) {
 817                 max_peak = mpeak;
 818                 if (mpeak <= -200.0f) {
 819                         peak_display.set_label (_("-inf"));
 820                 } else {
 821                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 822                         peak_display.set_label (buf);
 823                 }
 824
 825                 if (mpeak >= 0.0f) {
 826                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 827                 }
 828         }
 829 }
 830
 831 void GainMeterBase::color_handler(bool dpi)
 832 {
 833         color_changed = true;
 834         dpi_changed = (dpi) ? true : false;
 835         setup_meters();
 836 }
 837
 838 void
 839 GainMeterBase::set_width (Width w, int len)
 840 {
 841         _width = w;
 842         level_meter->setup_meters (len);
 843 }
 844
 845
 846 void
 847 GainMeterBase::on_theme_changed()
 848 {
 849         style_changed = true;
 850 }
 851
 852 GainMeter::GainMeter (Session* s, int fader_length)
 853         : GainMeterBase (s, false, fader_length, 24)
 854         , gain_display_box(true, 0)
 855         , hbox(true, 2)
 856 {
 857 //      gain_display_box.pack_start (gain_display, true, true);
 858
 859         meter_metric_area.set_name ("AudioTrackMetrics");
 860         set_size_request_to_display_given_text (meter_metric_area, "-127", 0, 0);
 861
 862         gain_automation_style_button.set_name ("mixer strip button");
 863         gain_automation_state_button.set_name ("mixer strip button");
 864
 865         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 866         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 867
 868         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 869         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 870
 871         gain_automation_state_button.set_size_request(15, 15);
 872         gain_automation_style_button.set_size_request(15, 15);
 873
 874         fader_vbox = manage (new Gtk::VBox());
 875         fader_vbox->set_spacing (0);
 876         fader_vbox->pack_start (*gain_slider, true, true);
 877
 878         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 879         fader_alignment.add (*fader_vbox);
 880
 881         hbox.pack_start (fader_alignment, true, true);
 882
 883         set_spacing (2);
 884
 885         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 886         pack_start (hbox, Gtk::PACK_SHRINK);
 887
 888         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 889         meter_alignment.add (*level_meter);
 890
 891         meter_metric_area.signal_expose_event().connect (
 892                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 893 }
 894
 895 void
 896 GainMeter::set_controls (boost::shared_ptr<Route> r,
 897                          boost::shared_ptr<PeakMeter> meter,
 898                          boost::shared_ptr<Amp> amp)
 899 {
 900         if (meter_alignment.get_parent()) {
 901                 hbox.remove (meter_alignment);
 902         }
 903
 904 //      if (peak_display.get_parent()) {
 905 //              gain_display_box.remove (peak_display);
 906 //      }
 907
 908 //      if (gain_automation_state_button.get_parent()) {
 909 //              fader_vbox->remove (gain_automation_state_button);
 910 //      }
 911
 912         GainMeterBase::set_controls (r, meter, amp);
 913
 914         if (_meter) {
 915                 _meter->ConfigurationChanged.connect (
 916                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
 917                         );
 918
 919                 meter_configuration_changed (_meter->input_streams ());
 920         }
 921
 922
 923         /*
 924            if we have a non-hidden route (ie. we're not the click or the auditioner),
 925            pack some route-dependent stuff.
 926         */
 927
 928 //      gain_display_box.pack_end (peak_display, true, true);
 929         hbox.pack_start (meter_alignment, true, true);
 930
 931 //      if (r && !r->is_hidden()) {
 932 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 933 //      }
 934
 935         setup_meters ();
 936         hbox.show_all ();
 937 }
 938
 939 int
 940 GainMeter::get_gm_width ()
 941 {
 942         Gtk::Requisition sz;
 943         hbox.size_request (sz);
 944         return sz.width;
 945 }
 946
 947 cairo_pattern_t*
 948 GainMeter::render_metrics (Gtk::Widget& w, vector<DataType> types)
 949 {
 950         Glib::RefPtr<Gdk::Window> win (w.get_window());
 951
 952         gint width, height;
 953         win->get_size (width, height);
 954
 955         cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
 956         cairo_t* cr = cairo_create (surface);
 957         PangoLayout* layout = gtk_widget_create_pango_layout (w.gobj(), "");
 958
 959         cairo_move_to (cr, 0, 0);
 960         cairo_rectangle (cr, 0, 0, width, height);
 961         {
 962                 Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
 963                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 964         }
 965         cairo_fill (cr);
 966
 967         for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 968
 969                 Gdk::Color c;
 970
 971                 if (types.size() > 1) {
 972                         /* we're overlaying more than 1 set of marks, so use different colours */
 973                         Gdk::Color c;
 974                         switch (*i) {
 975                         case DataType::AUDIO:
 976                                 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 977                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 978                                 break;
 979                         case DataType::MIDI:
 980                                 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 981                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 982                                 break;
 983                         }
 984                 } else {
 985                         c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 986                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 987                 }
 988
 989                 vector<int> points;
 990
 991                 switch (*i) {
 992                 case DataType::AUDIO:
 993                         points.push_back (-50);
 994                         points.push_back (-40);
 995                         points.push_back (-30);
 996                         points.push_back (-20);
 997                         points.push_back (-10);
 998                         points.push_back (-3);
 999                         points.push_back (0);
1000                         points.push_back (4);
1001                         break;
1002
1003                 case DataType::MIDI:
1004                         points.push_back (0);
1005                         if (types.size() == 1) {
1006                                 points.push_back (32);
1007                         } else {
1008                                 /* tweak so as not to overlay the -30dB mark */
1009                                 points.push_back (48);
1010                         }
1011                         points.push_back (64);
1012                         points.push_back (96);
1013                         points.push_back (127);
1014                         break;
1015                 }
1016
1017                 char buf[32];
1018
1019                 for (vector<int>::const_iterator j = points.begin(); j != points.end(); ++j) {
1020
1021                         float fraction = 0;
1022                         switch (*i) {
1023                         case DataType::AUDIO:
1024                                 fraction = log_meter (*j);
1025                                 break;
1026                         case DataType::MIDI:
1027                                 fraction = *j / 127.0;
1028                                 break;
1029                         }
1030
1031                         gint const pos = height - (gint) floor (height * fraction);
1032
1033                         cairo_set_line_width (cr, 1.0);
1034                         cairo_move_to (cr, 0, pos);
1035                         cairo_line_to (cr, 4, pos);
1036                         cairo_stroke (cr);
1037
1038                         snprintf (buf, sizeof (buf), "%d", abs (*j));
1039                         pango_layout_set_text (layout, buf, strlen (buf));
1040
1041                         /* we want logical extents, not ink extents here */
1042
1043                         int tw, th;
1044                         pango_layout_get_pixel_size (layout, &tw, &th);
1045
1046                         int p = pos - (th / 2);
1047                         p = min (p, height - th);
1048                         p = max (p, 0);
1049
1050                         cairo_move_to (cr, 6, p);
1051                         pango_cairo_show_layout (cr, layout);
1052                 }
1053         }
1054
1055         cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
1056         MetricPatterns::iterator p;
1057
1058         if ((p = metric_patterns.find (w.get_name())) != metric_patterns.end()) {
1059                 cairo_pattern_destroy (p->second);
1060         }
1061
1062         metric_patterns[w.get_name()] = pattern;
1063
1064         cairo_destroy (cr);
1065         cairo_surface_destroy (surface);
1066         g_object_unref (layout);
1067
1068         return pattern;
1069 }
1070
1071 gint
1072 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1073 {
1074         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
1075         cairo_t* cr;
1076
1077         cr = gdk_cairo_create (win->gobj());
1078
1079         /* clip to expose area */
1080
1081         gdk_cairo_rectangle (cr, &ev->area);
1082         cairo_clip (cr);
1083
1084         cairo_pattern_t* pattern;
1085         MetricPatterns::iterator i = metric_patterns.find (meter_metric_area.get_name());
1086
1087         if (i == metric_patterns.end() || style_changed || dpi_changed) {
1088                 pattern = render_metrics (meter_metric_area, _types);
1089         } else {
1090                 pattern = i->second;
1091         }
1092
1093         cairo_move_to (cr, 0, 0);
1094         cairo_set_source (cr, pattern);
1095
1096         gint width, height;
1097         win->get_size (width, height);
1098
1099         cairo_rectangle (cr, 0, 0, width, height);
1100         cairo_fill (cr);
1101
1102         style_changed = false;
1103         dpi_changed = false;
1104
1105         cairo_destroy (cr);
1106
1107         return true;
1108 }
1109
1110 boost::shared_ptr<PBD::Controllable>
1111 GainMeterBase::get_controllable()
1112 {
1113         if (_amp) {
1114                 return _amp->gain_control();
1115         } else {
1116                 return boost::shared_ptr<PBD::Controllable>();
1117         }
1118 }
1119
1120 bool
1121 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1122 {
1123         return LevelMeterButtonPress (ev); /* EMIT SIGNAL */
1124 }
1125
1126 void
1127 GainMeter::meter_configuration_changed (ChanCount c)
1128 {
1129         _types.clear ();
1130
1131         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1132                 if (c.get (*i) > 0) {
1133                         _types.push_back (*i);
1134                 }
1135         }
1136
1137         style_changed = true;
1138         meter_metric_area.queue_draw ();
1139 }
1140