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
  48 #include "ardour/session.h"
  49 #include "ardour/route.h"
  50 #include "ardour/meter.h"
  51 #include "ardour/audio_track.h"
  52 #include "ardour/midi_track.h"
  53
  54 #include "i18n.h"
  55
  56 using namespace ARDOUR;
  57 using namespace PBD;
  58 using namespace Gtkmm2ext;
  59 using namespace Gtk;
  60 using namespace std;
  61 using Gtkmm2ext::Keyboard;
  62
  63 sigc::signal<void> GainMeterBase::ResetAllPeakDisplays;
  64 sigc::signal<void,RouteGroup*> GainMeterBase::ResetGroupPeakDisplays;
  65
  66 GainMeter::MetricPatterns GainMeter::metric_patterns;
  67
  68 GainMeterBase::GainMeterBase (Session* s, bool horizontal, int fader_length, int fader_girth)
  69         : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()), 0.0, 1.0, 0.01, 0.1)
  70         , gain_automation_style_button ("")
  71         , gain_automation_state_button ("")
  72         , style_changed (false)
  73         , dpi_changed (false)
  74         , _data_type (DataType::AUDIO)
  75
  76 {
  77         using namespace Menu_Helpers;
  78
  79         set_session (s);
  80
  81         ignore_toggle = false;
  82         meter_menu = 0;
  83         next_release_selects = false;
  84         _width = Wide;
  85
  86         if (horizontal) {
  87                 gain_slider = manage (new HSliderController (&gain_adjustment, fader_length, fader_girth, false));
  88         } else {
  89                 gain_slider = manage (new VSliderController (&gain_adjustment, fader_length, fader_girth, false));
  90         }
  91
  92         level_meter = new LevelMeter(_session);
  93
  94         level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
  95         meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
  96         meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
  97
  98         gain_slider->signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_press), false);
  99         gain_slider->signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_release), false);
 100         gain_slider->set_name ("GainFader");
 101
 102         gain_display.set_name ("MixerStripGainDisplay");
 103         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 104         gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
 105         gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 106         gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 107
 108         peak_display.set_name ("MixerStripPeakDisplay");
 109         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 110         max_peak = minus_infinity();
 111         peak_display.set_label (_("-inf"));
 112         peak_display.unset_flags (Gtk::CAN_FOCUS);
 113
 114         gain_automation_style_button.set_name ("mixer strip button");
 115         gain_automation_state_button.set_name ("mixer strip button");
 116
 117         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 118         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 119
 120         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 121         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 122
 123         gain_automation_state_button.set_size_request(15, 15);
 124         gain_automation_style_button.set_size_request(15, 15);
 125
 126         gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 127         gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 128
 129         gain_astate_menu.set_name ("ArdourContextMenu");
 130         gain_astyle_menu.set_name ("ArdourContextMenu");
 131
 132         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted));
 133         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 134         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 135
 136         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 137         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 138
 139         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 140         ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 141         DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 142
 143 //      PBD::ScopedConnection _config_connection;
 144 //      Config->ParameterChanged.connect ( _config_connection, MISSING_INVALIDATOR, boost::bind(&GainMeterBase::set_flat_buttons, this, _1), gui_context() );
 145 }
 146
 147 void
 148 GainMeterBase::set_flat_buttons ()
 149 {
 150 printf("set_flat_butt\n");
 151 //      gain_slider->set_flat_buttons( ARDOUR_UI::config()->get_flat_buttons() );
 152 }
 153
 154 GainMeterBase::~GainMeterBase ()
 155 {
 156         delete meter_menu;
 157         delete level_meter;
 158 }
 159
 160 void
 161 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 162                              boost::shared_ptr<PeakMeter> pm,
 163                              boost::shared_ptr<Amp> amp)
 164 {
 165         connections.clear ();
 166         model_connections.drop_connections ();
 167
 168         if (!pm && !amp) {
 169                 level_meter->set_meter (0);
 170                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 171                 _meter.reset ();
 172                 _amp.reset ();
 173                 _route.reset ();
 174                 return;
 175         }
 176
 177         _meter = pm;
 178         _amp = amp;
 179         _route = r;
 180
 181         level_meter->set_meter (pm.get());
 182         gain_slider->set_controllable (amp->gain_control());
 183
 184         if (amp) {
 185                 amp->ConfigurationChanged.connect (
 186                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 187                         );
 188         }
 189
 190         setup_gain_adjustment ();
 191
 192         if (!_route || !_route->is_auditioner()) {
 193
 194                 using namespace Menu_Helpers;
 195
 196                 gain_astate_menu.items().clear ();
 197
 198                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 199                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 200                                                                           Evoral::Parameter(GainAutomation), (AutoState) ARDOUR::Off)));
 201                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 202                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 203                                                                     Evoral::Parameter(GainAutomation), (AutoState) Play)));
 204                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 205                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 206                                                                     Evoral::Parameter(GainAutomation), (AutoState) Write)));
 207                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 208                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 209                                                                     Evoral::Parameter(GainAutomation), (AutoState) Touch)));
 210
 211                 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
 212                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 213
 214                 boost::shared_ptr<AutomationControl> gc = amp->gain_control();
 215
 216                 gc->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 217                 gc->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
 218
 219                 gain_automation_state_changed ();
 220         }
 221
 222         amp->gain_control()->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 223
 224         gain_changed ();
 225         show_gain ();
 226         update_gain_sensitive ();
 227 }
 228
 229 void
 230 GainMeterBase::setup_gain_adjustment ()
 231 {
 232         if (!_amp) {
 233                 return;
 234         }
 235
 236         if (_previous_amp_output_streams == _amp->output_streams ()) {
 237                 return;
 238         }
 239
 240         ignore_toggle = true;
 241
 242         if (_amp->output_streams().n_midi() <=  _amp->output_streams().n_audio()) {
 243                 _data_type = DataType::AUDIO;
 244                 gain_adjustment.set_lower (0.0);
 245                 gain_adjustment.set_upper (1.0);
 246                 gain_adjustment.set_step_increment (0.01);
 247                 gain_adjustment.set_page_increment (0.1);
 248                 gain_slider->set_default_value (gain_to_slider_position (1));
 249         } else {
 250                 _data_type = DataType::MIDI;
 251                 gain_adjustment.set_lower (0.0);
 252                 gain_adjustment.set_upper (2.0);
 253                 gain_adjustment.set_step_increment (1.0/128.0);
 254                 gain_adjustment.set_page_increment (10.0/128.0);
 255                 gain_slider->set_default_value (1.0);
 256         }
 257
 258         ignore_toggle = false;
 259
 260         effective_gain_display ();
 261
 262         _previous_amp_output_streams = _amp->output_streams ();
 263 }
 264
 265 void
 266 GainMeterBase::hide_all_meters ()
 267 {
 268         level_meter->hide_meters();
 269 }
 270
 271 void
 272 GainMeter::hide_all_meters ()
 273 {
 274         bool remove_metric_area = false;
 275
 276         GainMeterBase::hide_all_meters ();
 277
 278         if (remove_metric_area) {
 279                 if (meter_metric_area.get_parent()) {
 280                         level_meter->remove (meter_metric_area);
 281                 }
 282         }
 283 }
 284
 285 void
 286 GainMeterBase::setup_meters (int len)
 287 {
 288         level_meter->setup_meters(len, 5);
 289 }
 290
 291 void
 292 GainMeter::setup_meters (int len)
 293 {
 294         if (!meter_metric_area.get_parent()) {
 295                 level_meter->pack_end (meter_metric_area, false, false);
 296                 meter_metric_area.show_all ();
 297         }
 298         GainMeterBase::setup_meters (len);
 299 }
 300
 301 bool
 302 GainMeterBase::gain_key_press (GdkEventKey* ev)
 303 {
 304         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 305                 /* drop through to normal handling */
 306                 return false;
 307         }
 308         /* illegal key for gain entry */
 309         return true;
 310 }
 311
 312 bool
 313 GainMeterBase::peak_button_release (GdkEventButton* ev)
 314 {
 315         /* reset peak label */
 316
 317         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 318                 ResetAllPeakDisplays ();
 319         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 320                 if (_route) {
 321                         ResetGroupPeakDisplays (_route->route_group());
 322                 }
 323         } else {
 324                 reset_peak_display ();
 325         }
 326
 327         return true;
 328 }
 329
 330 void
 331 GainMeterBase::reset_peak_display ()
 332 {
 333         _meter->reset_max();
 334         level_meter->clear_meters();
 335         max_peak = -INFINITY;
 336         peak_display.set_label (_("-Inf"));
 337         peak_display.set_name ("MixerStripPeakDisplay");
 338 }
 339
 340 void
 341 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 342 {
 343         if (_route && group == _route->route_group()) {
 344                 reset_peak_display ();
 345         }
 346 }
 347
 348 void
 349 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 350 {
 351         using namespace Menu_Helpers;
 352
 353         if (meter_menu == 0) {
 354                 meter_menu = new Gtk::Menu;
 355                 MenuList& items = meter_menu->items();
 356
 357                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 358                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 359                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 360                 items.push_back (SeparatorElem());
 361                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 362                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 363                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 364         }
 365
 366         meter_menu->popup (1, ev->time);
 367 }
 368
 369 bool
 370 GainMeterBase::gain_focused (GdkEventFocus* ev)
 371 {
 372         if (ev->in) {
 373                 gain_display.select_region (0, -1);
 374         } else {
 375                 gain_display.select_region (0, 0);
 376         }
 377         return false;
 378 }
 379
 380 void
 381 GainMeterBase::gain_activated ()
 382 {
 383         float f;
 384
 385         {
 386                 // Switch to user's preferred locale so that
 387                 // if they use different LC_NUMERIC conventions,
 388                 // we will honor them.
 389
 390                 PBD::LocaleGuard lg ("");
 391                 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 392                         return;
 393                 }
 394         }
 395
 396         /* clamp to displayable values */
 397         if (_data_type == DataType::AUDIO) {
 398                 f = min (f, 6.0f);
 399                 _amp->set_gain (dB_to_coefficient(f), this);
 400         } else {
 401                 f = min (fabs (f), 2.0f);
 402                 _amp->set_gain (f, this);
 403         }
 404
 405         if (gain_display.has_focus()) {
 406                 Gtk::Widget* w = gain_display.get_toplevel();
 407                 if (w) {
 408                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 409
 410                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 411
 412                         if (win) {
 413                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 414                                 if (f) {
 415                                         gtk_widget_grab_focus (f);
 416                                         return;
 417                                 }
 418                         }
 419                 }
 420         }
 421 }
 422
 423 void
 424 GainMeterBase::show_gain ()
 425 {
 426         char buf[32];
 427
 428         float v = gain_adjustment.get_value();
 429
 430         switch (_data_type) {
 431         case DataType::AUDIO:
 432                 if (v == 0.0) {
 433                         strcpy (buf, _("-inf"));
 434                 } else {
 435                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 436                 }
 437                 break;
 438         case DataType::MIDI:
 439                 snprintf (buf, sizeof (buf), "%.1f", v);
 440                 break;
 441         }
 442
 443         gain_display.set_text (buf);
 444 }
 445
 446 void
 447 GainMeterBase::gain_adjusted ()
 448 {
 449         gain_t value;
 450
 451         /* convert from adjustment range (0..1) to gain coefficient */
 452
 453         if (_data_type == DataType::AUDIO) {
 454                 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 455         } else {
 456                 value = gain_adjustment.get_value();
 457         }
 458
 459         if (!ignore_toggle) {
 460                 if (_route && _route->amp() == _amp) {
 461                         _route->set_gain (value, this);
 462                 } else {
 463                         _amp->set_gain (value, this);
 464                 }
 465         }
 466
 467         show_gain ();
 468 }
 469
 470 void
 471 GainMeterBase::effective_gain_display ()
 472 {
 473         float value = 0.0;
 474
 475         switch (_data_type) {
 476         case DataType::AUDIO:
 477                 value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
 478                 break;
 479         case DataType::MIDI:
 480                 value = _amp->gain ();
 481                 break;
 482         }
 483
 484         if (gain_adjustment.get_value() != value) {
 485                 ignore_toggle = true;
 486                 gain_adjustment.set_value (value);
 487                 ignore_toggle = false;
 488         }
 489 }
 490
 491 void
 492 GainMeterBase::gain_changed ()
 493 {
 494         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 495 }
 496
 497 void
 498 GainMeterBase::set_meter_strip_name (const char * name)
 499 {
 500         meter_metric_area.set_name (name);
 501 }
 502
 503 void
 504 GainMeterBase::set_fader_name (const char * name)
 505 {
 506         gain_slider->set_name (name);
 507 }
 508
 509 void
 510 GainMeterBase::update_gain_sensitive ()
 511 {
 512         bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
 513         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 514 }
 515
 516 static MeterPoint
 517 next_meter_point (MeterPoint mp)
 518 {
 519         switch (mp) {
 520         case MeterInput:
 521                 return MeterPreFader;
 522                 break;
 523
 524         case MeterPreFader:
 525                 return MeterPostFader;
 526                 break;
 527
 528         case MeterPostFader:
 529                 return MeterOutput;
 530                 break;
 531
 532         case MeterOutput:
 533                 return MeterCustom;
 534                 break;
 535
 536         case MeterCustom:
 537                 return MeterInput;
 538                 break;
 539         }
 540
 541         /*NOTREACHED*/
 542         return MeterInput;
 543 }
 544
 545 gint
 546 GainMeterBase::meter_press(GdkEventButton* ev)
 547 {
 548         wait_for_release = false;
 549
 550         if (!_route) {
 551                 return FALSE;
 552         }
 553
 554         if (!ignore_toggle) {
 555
 556                 if (Keyboard::is_context_menu_event (ev)) {
 557
 558                         // no menu at this time.
 559
 560                 } else {
 561
 562                         if (Keyboard::is_button2_event(ev)) {
 563
 564                                 // Primary-button2 click is the midi binding click
 565                                 // button2-click is "momentary"
 566
 567                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 568                                         wait_for_release = true;
 569                                         old_meter_point = _route->meter_point ();
 570                                 }
 571                         }
 572
 573                         if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
 574
 575                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 576
 577                                         /* Primary+Tertiary-click applies change to all routes */
 578
 579                                         _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
 580
 581
 582                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 583
 584                                         /* Primary-click: solo mix group.
 585                                            NOTE: Primary-button2 is MIDI learn.
 586                                         */
 587
 588                                         if (ev->button == 1) {
 589                                                 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 590                                         }
 591
 592                                 } else {
 593
 594                                         /* click: change just this route */
 595
 596                                         // XXX no undo yet
 597
 598                                         _route->set_meter_point (next_meter_point (_route->meter_point()));
 599                                 }
 600                         }
 601                 }
 602         }
 603
 604         return true;
 605
 606 }
 607
 608 gint
 609 GainMeterBase::meter_release(GdkEventButton*)
 610 {
 611         if (!ignore_toggle) {
 612                 if (wait_for_release) {
 613                         wait_for_release = false;
 614
 615                         if (_route) {
 616                                 set_meter_point (*_route, old_meter_point);
 617                         }
 618                 }
 619         }
 620
 621         return true;
 622 }
 623
 624 void
 625 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 626 {
 627         route.set_meter_point (mp);
 628 }
 629
 630 void
 631 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 632 {
 633         RouteGroup* route_group;
 634
 635         if ((route_group = route.route_group ()) != 0) {
 636                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 637         } else {
 638                 route.set_meter_point (mp);
 639         }
 640 }
 641
 642 void
 643 GainMeterBase::meter_point_clicked ()
 644 {
 645         if (_route) {
 646                 /* WHAT? */
 647         }
 648 }
 649
 650 bool
 651 GainMeterBase::gain_slider_button_press (GdkEventButton* ev)
 652 {
 653         switch (ev->type) {
 654         case GDK_BUTTON_PRESS:
 655                 _amp->gain_control()->start_touch (_amp->session().transport_frame());
 656                 break;
 657         default:
 658                 return false;
 659         }
 660
 661         return false;
 662 }
 663
 664 bool
 665 GainMeterBase::gain_slider_button_release (GdkEventButton*)
 666 {
 667         _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
 668         return false;
 669 }
 670
 671 gint
 672 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 673 {
 674         if (ev->type == GDK_BUTTON_RELEASE) {
 675                 return TRUE;
 676         }
 677
 678         switch (ev->button) {
 679                 case 1:
 680                         gain_astate_menu.popup (1, ev->time);
 681                         break;
 682                 default:
 683                         break;
 684         }
 685
 686         return TRUE;
 687 }
 688
 689 gint
 690 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 691 {
 692         if (ev->type == GDK_BUTTON_RELEASE) {
 693                 return TRUE;
 694         }
 695
 696         switch (ev->button) {
 697         case 1:
 698                 gain_astyle_menu.popup (1, ev->time);
 699                 break;
 700         default:
 701                 break;
 702         }
 703         return TRUE;
 704 }
 705
 706 string
 707 GainMeterBase::astate_string (AutoState state)
 708 {
 709         return _astate_string (state, false);
 710 }
 711
 712 string
 713 GainMeterBase::short_astate_string (AutoState state)
 714 {
 715         return _astate_string (state, true);
 716 }
 717
 718 string
 719 GainMeterBase::_astate_string (AutoState state, bool shrt)
 720 {
 721         string sstr;
 722
 723         switch (state) {
 724         case ARDOUR::Off:
 725                 sstr = (shrt ? "M" : _("M"));
 726                 break;
 727         case Play:
 728                 sstr = (shrt ? "P" : _("P"));
 729                 break;
 730         case Touch:
 731                 sstr = (shrt ? "T" : _("T"));
 732                 break;
 733         case Write:
 734                 sstr = (shrt ? "W" : _("W"));
 735                 break;
 736         }
 737
 738         return sstr;
 739 }
 740
 741 string
 742 GainMeterBase::astyle_string (AutoStyle style)
 743 {
 744         return _astyle_string (style, false);
 745 }
 746
 747 string
 748 GainMeterBase::short_astyle_string (AutoStyle style)
 749 {
 750         return _astyle_string (style, true);
 751 }
 752
 753 string
 754 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 755 {
 756         if (style & Trim) {
 757                 return _("Trim");
 758         } else {
 759                 /* XXX it might different in different languages */
 760
 761                 return (shrt ? _("Abs") : _("Abs"));
 762         }
 763 }
 764
 765 void
 766 GainMeterBase::gain_automation_style_changed ()
 767 {
 768         switch (_width) {
 769         case Wide:
 770                 gain_automation_style_button.set_text (astyle_string(_amp->gain_control()->alist()->automation_style()));
 771                 break;
 772         case Narrow:
 773                 gain_automation_style_button.set_text  (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
 774                 break;
 775         }
 776 }
 777
 778 void
 779 GainMeterBase::gain_automation_state_changed ()
 780 {
 781         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
 782
 783         bool x;
 784
 785         switch (_width) {
 786         case Wide:
 787                 gain_automation_state_button.set_text (astate_string(_amp->gain_control()->alist()->automation_state()));
 788                 break;
 789         case Narrow:
 790                 gain_automation_state_button.set_text (short_astate_string(_amp->gain_control()->alist()->automation_state()));
 791                 break;
 792         }
 793
 794         x = (_amp->gain_control()->alist()->automation_state() != ARDOUR::Off);
 795
 796         if (gain_automation_state_button.get_active() != x) {
 797                 ignore_toggle = true;
 798                 gain_automation_state_button.set_active (x);
 799                 ignore_toggle = false;
 800         }
 801
 802         update_gain_sensitive ();
 803
 804         /* start watching automation so that things move */
 805
 806         gain_watching.disconnect();
 807
 808         if (x) {
 809                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 810         }
 811 }
 812
 813 void
 814 GainMeterBase::update_meters()
 815 {
 816         char buf[32];
 817         float mpeak = level_meter->update_meters();
 818
 819         if (mpeak > max_peak) {
 820                 max_peak = mpeak;
 821                 if (mpeak <= -200.0f) {
 822                         peak_display.set_label (_("-inf"));
 823                 } else {
 824                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 825                         peak_display.set_label (buf);
 826                 }
 827
 828                 if (mpeak >= 0.0f) {
 829                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 830                 }
 831         }
 832 }
 833
 834 void GainMeterBase::color_handler(bool dpi)
 835 {
 836         color_changed = true;
 837         dpi_changed = (dpi) ? true : false;
 838         setup_meters();
 839 }
 840
 841 void
 842 GainMeterBase::set_width (Width w, int len)
 843 {
 844         _width = w;
 845         level_meter->setup_meters (len);
 846 }
 847
 848
 849 void
 850 GainMeterBase::on_theme_changed()
 851 {
 852         style_changed = true;
 853 }
 854
 855 GainMeter::GainMeter (Session* s, int fader_length)
 856         : GainMeterBase (s, false, fader_length, 24)
 857         , gain_display_box(true, 0)
 858         , hbox(true, 2)
 859 {
 860         if (gain_display.get_parent()) {
 861                 gain_display.get_parent()->remove (gain_display);
 862         }
 863         gain_display_box.pack_start (gain_display, true, true);
 864
 865         meter_metric_area.set_name ("AudioTrackMetrics");
 866         set_size_request_to_display_given_text (meter_metric_area, "-127", 1, 0);
 867
 868         gain_automation_style_button.set_name ("mixer strip button");
 869         gain_automation_state_button.set_name ("mixer strip button");
 870
 871         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 872         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 873
 874         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 875         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 876
 877         gain_automation_state_button.set_size_request(15, 15);
 878         gain_automation_style_button.set_size_request(15, 15);
 879
 880         fader_vbox = manage (new Gtk::VBox());
 881         fader_vbox->set_spacing (0);
 882         fader_vbox->pack_start (*gain_slider, true, true);
 883
 884         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 885         fader_alignment.add (*fader_vbox);
 886
 887         hbox.pack_start (fader_alignment, true, true);
 888
 889         set_spacing (2);
 890
 891         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 892         pack_start (hbox, Gtk::PACK_SHRINK);
 893
 894         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 895         meter_alignment.add (*level_meter);
 896
 897         meter_metric_area.signal_expose_event().connect (
 898                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 899 }
 900
 901 void
 902 GainMeter::set_controls (boost::shared_ptr<Route> r,
 903                          boost::shared_ptr<PeakMeter> meter,
 904                          boost::shared_ptr<Amp> amp)
 905 {
 906         if (meter_alignment.get_parent()) {
 907                 hbox.remove (meter_alignment);
 908         }
 909
 910 //      if (gain_automation_state_button.get_parent()) {
 911 //              fader_vbox->remove (gain_automation_state_button);
 912 //      }
 913
 914         GainMeterBase::set_controls (r, meter, amp);
 915
 916         if (_meter) {
 917                 _meter->ConfigurationChanged.connect (
 918                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
 919                         );
 920
 921                 meter_configuration_changed (_meter->input_streams ());
 922         }
 923
 924
 925         /*
 926            if we have a non-hidden route (ie. we're not the click or the auditioner),
 927            pack some route-dependent stuff.
 928         */
 929
 930         hbox.pack_start (meter_alignment, true, true);
 931
 932 //      if (r && !r->is_auditioner()) {
 933 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 934 //      }
 935
 936         setup_meters ();
 937         hbox.show_all ();
 938 }
 939
 940 int
 941 GainMeter::get_gm_width ()
 942 {
 943         Gtk::Requisition sz;
 944         hbox.size_request (sz);
 945         return sz.width;
 946 }
 947
 948 cairo_pattern_t*
 949 GainMeter::render_metrics (Gtk::Widget& w, vector<DataType> types)
 950 {
 951         Glib::RefPtr<Gdk::Window> win (w.get_window());
 952
 953         gint width, height;
 954         win->get_size (width, height);
 955
 956         cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
 957         cairo_t* cr = cairo_create (surface);
 958         Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(w.get_pango_context());
 959
 960
 961         Pango::AttrList audio_font_attributes;
 962         Pango::AttrList midi_font_attributes;
 963
 964         Pango::AttrFontDesc* font_attr;
 965         Pango::FontDescription font;
 966
 967         font = Pango::FontDescription (""); // use defaults
 968         //font = get_font_for_style("gain-fader");
 969         //font = w.get_style()->get_font();
 970
 971         font.set_weight (Pango::WEIGHT_NORMAL);
 972         font.set_size (10.0 * PANGO_SCALE);
 973         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 974         audio_font_attributes.change (*font_attr);
 975         delete font_attr;
 976
 977         font.set_weight (Pango::WEIGHT_ULTRALIGHT);
 978         font.set_stretch (Pango::STRETCH_ULTRA_CONDENSED);
 979         font.set_size (7.5 * PANGO_SCALE);
 980         font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
 981         midi_font_attributes.change (*font_attr);
 982         delete font_attr;
 983
 984
 985         cairo_move_to (cr, 0, 0);
 986         cairo_rectangle (cr, 0, 0, width, height);
 987         {
 988                 Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
 989                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 990         }
 991         cairo_fill (cr);
 992
 993         for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 994
 995                 Gdk::Color c;
 996
 997                 if (types.size() > 1) {
 998                         /* we're overlaying more than 1 set of marks, so use different colours */
 999                         Gdk::Color c;
1000                         switch (*i) {
1001                         case DataType::AUDIO:
1002                                 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
1003                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
1004                                 break;
1005                         case DataType::MIDI:
1006                                 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
1007                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
1008                                 break;
1009                         }
1010                 } else {
1011                         c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
1012                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
1013                 }
1014
1015                 vector<int> points;
1016
1017                 switch (*i) {
1018                 case DataType::AUDIO:
1019                         layout->set_attributes (audio_font_attributes);
1020                         points.push_back (-50);
1021                         points.push_back (-40);
1022                         points.push_back (-30);
1023                         points.push_back (-20);
1024                         points.push_back (-10);
1025                         points.push_back (-3);
1026                         points.push_back (0);
1027                         points.push_back (4);
1028                         break;
1029
1030                 case DataType::MIDI:
1031                         layout->set_attributes (midi_font_attributes);
1032                         points.push_back (0);
1033                         if (types.size() == 1) {
1034                                 points.push_back (32);
1035                         } else {
1036                                 /* tweak so as not to overlay the -30dB mark */
1037                                 points.push_back (48);
1038                         }
1039                         points.push_back (64);
1040                         points.push_back (96);
1041                         points.push_back (127);
1042                         break;
1043                 }
1044
1045                 char buf[32];
1046
1047                 for (vector<int>::const_iterator j = points.begin(); j != points.end(); ++j) {
1048
1049                         float fraction = 0;
1050                         switch (*i) {
1051                         case DataType::AUDIO:
1052                                 fraction = log_meter (*j);
1053                                 break;
1054                         case DataType::MIDI:
1055                                 fraction = *j / 127.0;
1056                                 break;
1057                         }
1058
1059                         gint const pos = height - (gint) floor (height * fraction);
1060
1061                         cairo_set_line_width (cr, 1.0);
1062                         cairo_move_to (cr, 0, pos);
1063                         cairo_line_to (cr, 3.5, pos);
1064                         cairo_stroke (cr);
1065
1066                         snprintf (buf, sizeof (buf), "%2d", abs (*j));
1067                         layout->set_text(buf);
1068
1069                         /* we want logical extents, not ink extents here */
1070
1071                         int tw, th;
1072                         layout->get_pixel_size(tw, th);
1073
1074                         int p = pos - (th / 2);
1075                         p = min (p, height - th);
1076                         p = max (p, 0);
1077
1078                         cairo_move_to (cr, 5, p);
1079                         pango_cairo_show_layout (cr, layout->gobj());
1080                 }
1081         }
1082
1083         cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
1084         MetricPatterns::iterator p;
1085
1086         if ((p = metric_patterns.find (w.get_name())) != metric_patterns.end()) {
1087                 cairo_pattern_destroy (p->second);
1088         }
1089
1090         metric_patterns[w.get_name()] = pattern;
1091
1092         cairo_destroy (cr);
1093         cairo_surface_destroy (surface);
1094
1095         return pattern;
1096 }
1097
1098 gint
1099 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1100 {
1101         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
1102         cairo_t* cr;
1103
1104         cr = gdk_cairo_create (win->gobj());
1105
1106         /* clip to expose area */
1107
1108         gdk_cairo_rectangle (cr, &ev->area);
1109         cairo_clip (cr);
1110
1111         cairo_pattern_t* pattern;
1112         MetricPatterns::iterator i = metric_patterns.find (meter_metric_area.get_name());
1113
1114         if (i == metric_patterns.end() || style_changed || dpi_changed) {
1115                 pattern = render_metrics (meter_metric_area, _types);
1116         } else {
1117                 pattern = i->second;
1118         }
1119
1120         cairo_move_to (cr, 0, 0);
1121         cairo_set_source (cr, pattern);
1122
1123         gint width, height;
1124         win->get_size (width, height);
1125
1126         cairo_rectangle (cr, 0, 0, width, height);
1127         cairo_fill (cr);
1128
1129         style_changed = false;
1130         dpi_changed = false;
1131
1132         cairo_destroy (cr);
1133
1134         return true;
1135 }
1136
1137 boost::shared_ptr<PBD::Controllable>
1138 GainMeterBase::get_controllable()
1139 {
1140         if (_amp) {
1141                 return _amp->gain_control();
1142         } else {
1143                 return boost::shared_ptr<PBD::Controllable>();
1144         }
1145 }
1146
1147 bool
1148 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1149 {
1150         return LevelMeterButtonPress (ev); /* EMIT SIGNAL */
1151 }
1152
1153 void
1154 GainMeter::meter_configuration_changed (ChanCount c)
1155 {
1156         int type = 0;
1157         _types.clear ();
1158
1159         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1160                 if (c.get (*i) > 0) {
1161                         _types.push_back (*i);
1162                         type |= 1 << (*i);
1163                 }
1164         }
1165
1166         if (boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1167                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1168                         ) {
1169                 if (_route->active()) {
1170                         set_meter_strip_name ("AudioBusMetrics");
1171                 } else {
1172                         set_meter_strip_name ("AudioBusMetricsInactive");
1173                 }
1174         }
1175         else if (type == (1 << DataType::AUDIO)) {
1176                 if (_route->active()) {
1177                         set_meter_strip_name ("AudioTrackMetrics");
1178                 } else {
1179                         set_meter_strip_name ("AudioTrackMetricsInactive");
1180                 }
1181         }
1182         else if (type == (1 << DataType::MIDI)) {
1183                 if (_route->active()) {
1184                         set_meter_strip_name ("MidiTrackMetrics");
1185                 } else {
1186                         set_meter_strip_name ("MidiTrackMetricsInactive");
1187                 }
1188         } else {
1189                 if (_route->active()) {
1190                         set_meter_strip_name ("AudioMidiTrackMetrics");
1191                 } else {
1192                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1193                 }
1194         }
1195
1196         style_changed = true;
1197         meter_metric_area.queue_draw ();
1198 }
1199