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 #include "timers.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 #include "ardour/dB.h"
  54
  55 #include "i18n.h"
  56
  57 using namespace ARDOUR;
  58 using namespace ARDOUR_UI_UTILS;
  59 using namespace PBD;
  60 using namespace Gtkmm2ext;
  61 using namespace Gtk;
  62 using namespace std;
  63 using Gtkmm2ext::Keyboard;
  64 using namespace ArdourMeter;
  65
  66 static void
  67 reset_cursor_to_default (Gtk::Entry* widget)
  68 {
  69         Glib::RefPtr<Gdk::Window> win = widget->get_text_window ();
  70         if (win) {
  71                 /* C++ doesn't provide a pointer argument version of this
  72                    (i.e. you cannot set to NULL to get the default/parent
  73                    cursor)
  74                 */
  75                 gdk_window_set_cursor (win->gobj(), 0);
  76         }
  77 }
  78
  79 static void
  80 reset_cursor_to_default_state (Gtk::StateType, Gtk::Entry* widget)
  81 {
  82         reset_cursor_to_default (widget);
  83 }
  84
  85 GainMeterBase::GainMeterBase (Session* s, bool horizontal, int fader_length, int fader_girth)
  86         : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()),  // value
  87                            0.0,  // lower
  88                            1.0,  // upper
  89                            dB_coeff_step(Config->get_max_gain()) / 10.0,  // step increment
  90                            dB_coeff_step(Config->get_max_gain()))  // page increment
  91         , gain_automation_style_button ("")
  92         , gain_automation_state_button ("")
  93         , _data_type (DataType::AUDIO)
  94 {
  95         using namespace Menu_Helpers;
  96
  97         set_session (s);
  98
  99         ignore_toggle = false;
 100         meter_menu = 0;
 101         next_release_selects = false;
 102         _width = Wide;
 103
 104         fader_length = rint (fader_length * ARDOUR_UI::config()->get_font_scale() / 102400.);
 105         fader_girth = rint (fader_girth * ARDOUR_UI::config()->get_font_scale() / 102400.);
 106
 107         if (horizontal) {
 108                 gain_slider = manage (new HSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 109         } else {
 110                 gain_slider = manage (new VSliderController (&gain_adjustment, boost::shared_ptr<PBD::Controllable>(), fader_length, fader_girth));
 111         }
 112
 113         level_meter = new LevelMeterHBox(_session);
 114
 115         level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
 116         meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
 117         meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
 118
 119         gain_slider->set_tweaks (PixFader::Tweaks(PixFader::NoButtonForward | PixFader::NoVerticalScroll));
 120         gain_slider->StartGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_start_touch));
 121         gain_slider->StopGesture.connect (sigc::mem_fun (*this, &GainMeter::amp_stop_touch));
 122         gain_slider->set_name ("GainFader");
 123
 124         gain_display.set_name ("MixerStripGainDisplay");
 125         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 126         gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
 127         gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 128         gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 129         gain_display.set_alignment(0.5);
 130
 131         peak_display.set_name ("MixerStripPeakDisplay");
 132         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 133         max_peak = minus_infinity();
 134         peak_display.set_text (_("-inf"));
 135         peak_display.set_alignment(0.5);
 136
 137         /* stuff related to the fact that the peak display is not, in
 138            fact, supposed to be a text entry.
 139         */
 140         peak_display.set_events (peak_display.get_events() & ~(Gdk::EventMask (Gdk::LEAVE_NOTIFY_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::POINTER_MOTION_MASK)));
 141         peak_display.signal_map().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default), &peak_display));
 142         peak_display.signal_state_changed().connect (sigc::bind (sigc::ptr_fun (reset_cursor_to_default_state), &peak_display));
 143         peak_display.unset_flags (Gtk::CAN_FOCUS);
 144         peak_display.set_editable (false);
 145
 146         gain_automation_style_button.set_name ("mixer strip button");
 147         gain_automation_state_button.set_name ("mixer strip button");
 148
 149         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 150         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 151
 152         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 153         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 154
 155         gain_automation_state_button.set_size_request(15, 15);
 156         gain_automation_style_button.set_size_request(15, 15);
 157
 158         gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 159         gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 160
 161         gain_astate_menu.set_name ("ArdourContextMenu");
 162         gain_astyle_menu.set_name ("ArdourContextMenu");
 163
 164         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted));
 165         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 166         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 167
 168         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 169         ResetRoutePeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_route_peak_display));
 170         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 171         RedrawMetrics.connect (sigc::mem_fun(*this, &GainMeterBase::redraw_metrics));
 172
 173         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 174         ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 175         DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 176 }
 177
 178 GainMeterBase::~GainMeterBase ()
 179 {
 180         delete meter_menu;
 181         delete level_meter;
 182 }
 183
 184 void
 185 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 186                              boost::shared_ptr<PeakMeter> pm,
 187                              boost::shared_ptr<Amp> amp)
 188 {
 189         connections.clear ();
 190         model_connections.drop_connections ();
 191
 192         if (!pm && !amp) {
 193                 level_meter->set_meter (0);
 194                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 195                 _meter.reset ();
 196                 _amp.reset ();
 197                 _route.reset ();
 198                 return;
 199         }
 200
 201         _meter = pm;
 202         _amp = amp;
 203         _route = r;
 204
 205         level_meter->set_meter (pm.get());
 206         gain_slider->set_controllable (amp->gain_control());
 207
 208         if (amp) {
 209                 amp->ConfigurationChanged.connect (
 210                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 211                         );
 212         }
 213
 214         setup_gain_adjustment ();
 215
 216         if (!_route || !_route->is_auditioner()) {
 217
 218                 using namespace Menu_Helpers;
 219
 220                 gain_astate_menu.items().clear ();
 221
 222                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 223                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 224                                                                           Evoral::Parameter(GainAutomation), (AutoState) ARDOUR::Off)));
 225                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 226                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 227                                                                     Evoral::Parameter(GainAutomation), (AutoState) Play)));
 228                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 229                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 230                                                                     Evoral::Parameter(GainAutomation), (AutoState) Write)));
 231                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 232                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 233                                                                     Evoral::Parameter(GainAutomation), (AutoState) Touch)));
 234
 235                 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
 236                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 237
 238                 boost::shared_ptr<AutomationControl> gc = amp->gain_control();
 239
 240                 gc->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 241                 gc->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
 242
 243                 gain_automation_state_changed ();
 244         }
 245
 246         amp->gain_control()->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 247
 248         gain_changed ();
 249         show_gain ();
 250         update_gain_sensitive ();
 251 }
 252
 253 void
 254 GainMeterBase::setup_gain_adjustment ()
 255 {
 256         if (!_amp) {
 257                 return;
 258         }
 259
 260         if (_previous_amp_output_streams == _amp->output_streams ()) {
 261                 return;
 262         }
 263
 264         ignore_toggle = true;
 265
 266         if (_amp->output_streams().n_midi() <=  _amp->output_streams().n_audio()) {
 267                 _data_type = DataType::AUDIO;
 268                 gain_adjustment.set_lower (0.0);
 269                 gain_adjustment.set_upper (1.0);
 270                 gain_adjustment.set_step_increment (dB_coeff_step(Config->get_max_gain()) / 10.0);
 271                 gain_adjustment.set_page_increment (dB_coeff_step(Config->get_max_gain()));
 272                 gain_slider->set_default_value (gain_to_slider_position (1));
 273         } else {
 274                 _data_type = DataType::MIDI;
 275                 gain_adjustment.set_lower (0.0);
 276                 gain_adjustment.set_upper (2.0);
 277                 gain_adjustment.set_step_increment (1.0/128.0);
 278                 gain_adjustment.set_page_increment (10.0/128.0);
 279                 gain_slider->set_default_value (1.0);
 280         }
 281
 282         ignore_toggle = false;
 283
 284         effective_gain_display ();
 285
 286         _previous_amp_output_streams = _amp->output_streams ();
 287 }
 288
 289 void
 290 GainMeterBase::hide_all_meters ()
 291 {
 292         level_meter->hide_meters();
 293 }
 294
 295 void
 296 GainMeter::hide_all_meters ()
 297 {
 298         GainMeterBase::hide_all_meters ();
 299 }
 300
 301 void
 302 GainMeterBase::setup_meters (int len)
 303 {
 304         int meter_width = 5;
 305         uint32_t meter_channels = 0;
 306         if (_meter) {
 307                 meter_channels = _meter->input_streams().n_total();
 308         } else if (_route) {
 309                 meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 310         }
 311
 312         switch (_width) {
 313                 case Wide:
 314                         //meter_ticks1_area.show();
 315                         //meter_ticks2_area.show();
 316                         meter_metric_area.show();
 317                         if (meter_channels == 1) {
 318                                 meter_width = 10;
 319                         }
 320                         break;
 321                 case Narrow:
 322                         if (meter_channels > 1) {
 323                                 meter_width = 4;
 324                         }
 325                         //meter_ticks1_area.hide();
 326                         //meter_ticks2_area.hide();
 327                         meter_metric_area.hide();
 328                         break;
 329         }
 330         level_meter->setup_meters(len, meter_width);
 331 }
 332
 333 void
 334 GainMeterBase::set_type (MeterType t)
 335 {
 336         level_meter->set_type(t);
 337 }
 338
 339 void
 340 GainMeter::setup_meters (int len)
 341 {
 342         switch (_width) {
 343                 case Wide:
 344                         {
 345                                 uint32_t meter_channels = 0;
 346                                 if (_meter) {
 347                                         meter_channels = _meter->input_streams().n_total();
 348                                 } else if (_route) {
 349                                         meter_channels = _route->shared_peak_meter()->input_streams().n_total();
 350                                 }
 351                                 hbox.set_homogeneous(meter_channels < 7 ? true : false);
 352                         }
 353                         break;
 354                 case Narrow:
 355                         hbox.set_homogeneous(false);
 356                         break;
 357         }
 358         GainMeterBase::setup_meters (len);
 359 }
 360
 361 void
 362 GainMeter::set_type (MeterType t)
 363 {
 364         GainMeterBase::set_type (t);
 365 }
 366
 367 bool
 368 GainMeterBase::gain_key_press (GdkEventKey* ev)
 369 {
 370         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 371                 /* drop through to normal handling */
 372                 return false;
 373         }
 374         /* illegal key for gain entry */
 375         return true;
 376 }
 377
 378 bool
 379 GainMeterBase::peak_button_release (GdkEventButton* ev)
 380 {
 381         /* reset peak label */
 382
 383         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 384                 ResetAllPeakDisplays ();
 385         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 386                 if (_route) {
 387                         ResetGroupPeakDisplays (_route->route_group());
 388                 }
 389         } else {
 390                 ResetRoutePeakDisplays (_route.get());
 391         }
 392
 393         return true;
 394 }
 395
 396 void
 397 GainMeterBase::reset_peak_display ()
 398 {
 399         _meter->reset_max();
 400         level_meter->clear_meters();
 401         max_peak = -INFINITY;
 402         peak_display.set_text (_("-inf"));
 403         peak_display.set_name ("MixerStripPeakDisplay");
 404 }
 405
 406 void
 407 GainMeterBase::reset_route_peak_display (Route* route)
 408 {
 409         if (_route && _route.get() == route) {
 410                 reset_peak_display ();
 411         }
 412 }
 413
 414 void
 415 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 416 {
 417         if (_route && group == _route->route_group()) {
 418                 reset_peak_display ();
 419         }
 420 }
 421
 422 void
 423 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 424 {
 425         using namespace Menu_Helpers;
 426
 427         if (meter_menu == 0) {
 428                 meter_menu = new Gtk::Menu;
 429                 MenuList& items = meter_menu->items();
 430
 431                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 432                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 433                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 434                 items.push_back (SeparatorElem());
 435                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 436                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 437                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 438         }
 439
 440         meter_menu->popup (1, ev->time);
 441 }
 442
 443 bool
 444 GainMeterBase::gain_focused (GdkEventFocus* ev)
 445 {
 446         if (ev->in) {
 447                 gain_display.select_region (0, -1);
 448         } else {
 449                 gain_display.select_region (0, 0);
 450         }
 451         return false;
 452 }
 453
 454 void
 455 GainMeterBase::gain_activated ()
 456 {
 457         float f;
 458
 459         {
 460                 // Switch to user's preferred locale so that
 461                 // if they use different LC_NUMERIC conventions,
 462                 // we will honor them.
 463
 464                 PBD::LocaleGuard lg ("");
 465                 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 466                         return;
 467                 }
 468         }
 469
 470         /* clamp to displayable values */
 471         if (_data_type == DataType::AUDIO) {
 472                 f = min (f, 6.0f);
 473                 _amp->set_gain (dB_to_coefficient(f), this);
 474         } else {
 475                 f = min (fabs (f), 2.0f);
 476                 _amp->set_gain (f, this);
 477         }
 478
 479         if (gain_display.has_focus()) {
 480                 Gtk::Widget* w = gain_display.get_toplevel();
 481                 if (w) {
 482                         Gtk::Window* win = dynamic_cast<Gtk::Window*> (w);
 483
 484                         /* sigh. gtkmm doesn't wrap get_default_widget() */
 485
 486                         if (win) {
 487                                 GtkWidget* f = gtk_window_get_default_widget (win->gobj());
 488                                 if (f) {
 489                                         gtk_widget_grab_focus (f);
 490                                         return;
 491                                 }
 492                         }
 493                 }
 494         }
 495 }
 496
 497 void
 498 GainMeterBase::show_gain ()
 499 {
 500         char buf[32];
 501
 502         float v = gain_adjustment.get_value();
 503
 504         switch (_data_type) {
 505         case DataType::AUDIO:
 506                 if (v == 0.0) {
 507                         strcpy (buf, _("-inf"));
 508                 } else {
 509                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 510                 }
 511                 break;
 512         case DataType::MIDI:
 513                 snprintf (buf, sizeof (buf), "%.1f", v);
 514                 break;
 515         }
 516
 517         gain_display.set_text (buf);
 518 }
 519
 520 void
 521 GainMeterBase::gain_adjusted ()
 522 {
 523         gain_t value;
 524
 525         /* convert from adjustment range (0..1) to gain coefficient */
 526
 527         if (_data_type == DataType::AUDIO) {
 528                 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 529         } else {
 530                 value = gain_adjustment.get_value();
 531         }
 532
 533         if (!ignore_toggle) {
 534                 if (_route && _route->amp() == _amp) {
 535                         _route->set_gain (value, this);
 536                 } else {
 537                         _amp->set_gain (value, this);
 538                 }
 539         }
 540
 541         show_gain ();
 542 }
 543
 544 void
 545 GainMeterBase::effective_gain_display ()
 546 {
 547         float value = 0.0;
 548
 549         switch (_data_type) {
 550         case DataType::AUDIO:
 551                 value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
 552                 break;
 553         case DataType::MIDI:
 554                 value = _amp->gain ();
 555                 break;
 556         }
 557
 558         if (gain_adjustment.get_value() != value) {
 559                 ignore_toggle = true;
 560                 gain_adjustment.set_value (value);
 561                 ignore_toggle = false;
 562         }
 563 }
 564
 565 void
 566 GainMeterBase::gain_changed ()
 567 {
 568         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 569 }
 570
 571 void
 572 GainMeterBase::set_meter_strip_name (const char * name)
 573 {
 574         char tmp[256];
 575         meter_metric_area.set_name (name);
 576         sprintf(tmp, "Mark%sLeft", name);
 577         meter_ticks1_area.set_name (tmp);
 578         sprintf(tmp, "Mark%sRight", name);
 579         meter_ticks2_area.set_name (tmp);
 580 }
 581
 582 void
 583 GainMeterBase::set_fader_name (const char * name)
 584 {
 585         gain_slider->set_name (name);
 586 }
 587
 588 void
 589 GainMeterBase::update_gain_sensitive ()
 590 {
 591         bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
 592         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 593 }
 594
 595 static MeterPoint
 596 next_meter_point (MeterPoint mp)
 597 {
 598         switch (mp) {
 599         case MeterInput:
 600                 return MeterPreFader;
 601                 break;
 602
 603         case MeterPreFader:
 604                 return MeterPostFader;
 605                 break;
 606
 607         case MeterPostFader:
 608                 return MeterOutput;
 609                 break;
 610
 611         case MeterOutput:
 612                 return MeterCustom;
 613                 break;
 614
 615         case MeterCustom:
 616                 return MeterInput;
 617                 break;
 618         }
 619
 620         abort(); /*NOTREACHED*/
 621         return MeterInput;
 622 }
 623
 624 gint
 625 GainMeterBase::meter_press(GdkEventButton* ev)
 626 {
 627         wait_for_release = false;
 628
 629         if (!_route) {
 630                 return FALSE;
 631         }
 632
 633         if (!ignore_toggle) {
 634
 635                 if (Keyboard::is_context_menu_event (ev)) {
 636
 637                         // no menu at this time.
 638
 639                 } else {
 640
 641                         if (Keyboard::is_button2_event(ev)) {
 642
 643                                 // Primary-button2 click is the midi binding click
 644                                 // button2-click is "momentary"
 645
 646                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 647                                         wait_for_release = true;
 648                                         old_meter_point = _route->meter_point ();
 649                                 }
 650                         }
 651
 652                         if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
 653
 654                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 655
 656                                         /* Primary+Tertiary-click applies change to all routes */
 657
 658                                         _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
 659
 660
 661                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 662
 663                                         /* Primary-click: solo mix group.
 664                                            NOTE: Primary-button2 is MIDI learn.
 665                                         */
 666
 667                                         if (ev->button == 1) {
 668                                                 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 669                                         }
 670
 671                                 } else {
 672
 673                                         /* click: change just this route */
 674
 675                                         // XXX no undo yet
 676
 677                                         _route->set_meter_point (next_meter_point (_route->meter_point()));
 678                                 }
 679                         }
 680                 }
 681         }
 682
 683         return true;
 684
 685 }
 686
 687 gint
 688 GainMeterBase::meter_release(GdkEventButton*)
 689 {
 690         if (!ignore_toggle) {
 691                 if (wait_for_release) {
 692                         wait_for_release = false;
 693
 694                         if (_route) {
 695                                 set_meter_point (*_route, old_meter_point);
 696                         }
 697                 }
 698         }
 699
 700         return true;
 701 }
 702
 703 void
 704 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 705 {
 706         route.set_meter_point (mp);
 707 }
 708
 709 void
 710 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 711 {
 712         RouteGroup* route_group;
 713
 714         if ((route_group = route.route_group ()) != 0) {
 715                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 716         } else {
 717                 route.set_meter_point (mp);
 718         }
 719 }
 720
 721 void
 722 GainMeterBase::meter_point_clicked ()
 723 {
 724         if (_route) {
 725                 /* WHAT? */
 726         }
 727 }
 728
 729 void
 730 GainMeterBase::amp_start_touch ()
 731 {
 732         _amp->gain_control()->start_touch (_amp->session().transport_frame());
 733 }
 734
 735 void
 736 GainMeterBase::amp_stop_touch ()
 737 {
 738         _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
 739 }
 740
 741 gint
 742 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 743 {
 744         if (ev->type == GDK_BUTTON_RELEASE) {
 745                 return TRUE;
 746         }
 747
 748         switch (ev->button) {
 749                 case 1:
 750                         gain_astate_menu.popup (1, ev->time);
 751                         break;
 752                 default:
 753                         break;
 754         }
 755
 756         return TRUE;
 757 }
 758
 759 gint
 760 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 761 {
 762         if (ev->type == GDK_BUTTON_RELEASE) {
 763                 return TRUE;
 764         }
 765
 766         switch (ev->button) {
 767         case 1:
 768                 gain_astyle_menu.popup (1, ev->time);
 769                 break;
 770         default:
 771                 break;
 772         }
 773         return TRUE;
 774 }
 775
 776 string
 777 GainMeterBase::astate_string (AutoState state)
 778 {
 779         return _astate_string (state, false);
 780 }
 781
 782 string
 783 GainMeterBase::short_astate_string (AutoState state)
 784 {
 785         return _astate_string (state, true);
 786 }
 787
 788 string
 789 GainMeterBase::_astate_string (AutoState state, bool shrt)
 790 {
 791         string sstr;
 792
 793         switch (state) {
 794         case ARDOUR::Off:
 795                 sstr = (shrt ? "M" : _("M"));
 796                 break;
 797         case Play:
 798                 sstr = (shrt ? "P" : _("P"));
 799                 break;
 800         case Touch:
 801                 sstr = (shrt ? "T" : _("T"));
 802                 break;
 803         case Write:
 804                 sstr = (shrt ? "W" : _("W"));
 805                 break;
 806         }
 807
 808         return sstr;
 809 }
 810
 811 string
 812 GainMeterBase::astyle_string (AutoStyle style)
 813 {
 814         return _astyle_string (style, false);
 815 }
 816
 817 string
 818 GainMeterBase::short_astyle_string (AutoStyle style)
 819 {
 820         return _astyle_string (style, true);
 821 }
 822
 823 string
 824 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 825 {
 826         if (style & Trim) {
 827                 return _("Trim");
 828         } else {
 829                 /* XXX it might different in different languages */
 830
 831                 return (shrt ? _("Abs") : _("Abs"));
 832         }
 833 }
 834
 835 void
 836 GainMeterBase::gain_automation_style_changed ()
 837 {
 838         switch (_width) {
 839         case Wide:
 840                 gain_automation_style_button.set_text (astyle_string(_amp->gain_control()->alist()->automation_style()));
 841                 break;
 842         case Narrow:
 843                 gain_automation_style_button.set_text  (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
 844                 break;
 845         }
 846 }
 847
 848 void
 849 GainMeterBase::gain_automation_state_changed ()
 850 {
 851         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
 852
 853         bool x;
 854
 855         switch (_width) {
 856         case Wide:
 857                 gain_automation_state_button.set_text (astate_string(_amp->gain_control()->alist()->automation_state()));
 858                 break;
 859         case Narrow:
 860                 gain_automation_state_button.set_text (short_astate_string(_amp->gain_control()->alist()->automation_state()));
 861                 break;
 862         }
 863
 864         x = (_amp->gain_control()->alist()->automation_state() != ARDOUR::Off);
 865
 866         if (gain_automation_state_button.get_active() != x) {
 867                 ignore_toggle = true;
 868                 gain_automation_state_button.set_active (x);
 869                 ignore_toggle = false;
 870         }
 871
 872         update_gain_sensitive ();
 873
 874         /* start watching automation so that things move */
 875
 876         gain_watching.disconnect();
 877
 878         if (x) {
 879                 gain_watching = Timers::rapid_connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 880         }
 881 }
 882
 883 const ChanCount
 884 GainMeterBase::meter_channels() const
 885 {
 886                 if (_meter) { return _meter->input_streams(); }
 887                 else { return ChanCount(); }
 888 }
 889 void
 890 GainMeterBase::update_meters()
 891 {
 892         char buf[32];
 893         float mpeak = level_meter->update_meters();
 894
 895         if (mpeak > max_peak) {
 896                 max_peak = mpeak;
 897                 if (mpeak <= -200.0f) {
 898                         peak_display.set_text (_("-inf"));
 899                 } else {
 900                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 901                         peak_display.set_text (buf);
 902                 }
 903         }
 904         if (mpeak >= ARDOUR_UI::config()->get_meter_peak()) {
 905                 peak_display.set_name ("MixerStripPeakDisplayPeak");
 906         }
 907 }
 908
 909 void GainMeterBase::color_handler(bool /*dpi*/)
 910 {
 911         setup_meters();
 912 }
 913
 914 void
 915 GainMeterBase::set_width (Width w, int len)
 916 {
 917         _width = w;
 918         int meter_width = 5;
 919         if (_width == Wide && _route && _route->shared_peak_meter()->input_streams().n_total() == 1) {
 920                 meter_width = 10;
 921         }
 922         level_meter->setup_meters(len, meter_width);
 923 }
 924
 925
 926 void
 927 GainMeterBase::on_theme_changed()
 928 {
 929 }
 930
 931 void
 932 GainMeterBase::redraw_metrics()
 933 {
 934         meter_metric_area.queue_draw ();
 935         meter_ticks1_area.queue_draw ();
 936         meter_ticks2_area.queue_draw ();
 937 }
 938
 939 #define PX_SCALE(pxmin, dflt) rint(std::max((double)pxmin, (double)dflt * scale))
 940
 941 GainMeter::GainMeter (Session* s, int fader_length)
 942         : GainMeterBase (s, false, fader_length, 24)
 943         , gain_display_box(true, 0)
 944         , hbox(true, 2)
 945 {
 946         if (gain_display.get_parent()) {
 947                 gain_display.get_parent()->remove (gain_display);
 948         }
 949         gain_display_box.pack_start (gain_display, true, true);
 950
 951         if (peak_display.get_parent()) {
 952                 peak_display.get_parent()->remove (gain_display);
 953         }
 954         gain_display_box.pack_start (peak_display, true, true);
 955
 956         const double scale = ARDOUR_UI::config()->get_font_scale() / 102400.;
 957
 958         meter_metric_area.set_name ("AudioTrackMetrics");
 959         meter_metric_area.set_size_request(PX_SCALE(24, 24), -1);
 960
 961         gain_automation_style_button.set_name ("mixer strip button");
 962         gain_automation_state_button.set_name ("mixer strip button");
 963
 964         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 965         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 966
 967         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 968         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 969
 970         gain_automation_state_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 971         gain_automation_style_button.set_size_request (PX_SCALE(12, 15), PX_SCALE(12, 15));
 972
 973         fader_vbox = manage (new Gtk::VBox());
 974         fader_vbox->set_spacing (0);
 975         fader_vbox->pack_start (*gain_slider, true, true);
 976
 977         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 978         fader_alignment.add (*fader_vbox);
 979
 980         hbox.pack_start (fader_alignment, true, true);
 981
 982         set_spacing (PX_SCALE(2, 2));
 983
 984         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 985         pack_start (hbox, Gtk::PACK_SHRINK);
 986
 987         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 988         meter_alignment.add (*level_meter);
 989
 990         meter_metric_area.signal_expose_event().connect (
 991                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 992
 993         meter_ticks1_area.set_size_request (PX_SCALE(3, 3), -1);
 994         meter_ticks2_area.set_size_request (PX_SCALE(3, 3), -1);
 995
 996         meter_ticks1_area.signal_expose_event().connect (
 997                         sigc::mem_fun(*this, &GainMeter::meter_ticks1_expose));
 998         meter_ticks2_area.signal_expose_event().connect (
 999                         sigc::mem_fun(*this, &GainMeter::meter_ticks2_expose));
1000
1001         meter_hbox.pack_start (meter_ticks1_area, false, false);
1002         meter_hbox.pack_start (meter_alignment, false, false);
1003         meter_hbox.pack_start (meter_ticks2_area, false, false);
1004         meter_hbox.pack_start (meter_metric_area, false, false);
1005 }
1006 #undef PX_SCALE
1007
1008 GainMeter::~GainMeter () { }
1009
1010 void
1011 GainMeter::set_controls (boost::shared_ptr<Route> r,
1012                          boost::shared_ptr<PeakMeter> meter,
1013                          boost::shared_ptr<Amp> amp)
1014 {
1015         if (meter_hbox.get_parent()) {
1016                 hbox.remove (meter_hbox);
1017         }
1018
1019 //      if (gain_automation_state_button.get_parent()) {
1020 //              fader_vbox->remove (gain_automation_state_button);
1021 //      }
1022
1023         GainMeterBase::set_controls (r, meter, amp);
1024
1025         if (_meter) {
1026                 _meter->ConfigurationChanged.connect (
1027                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
1028                         );
1029                 _meter->TypeChanged.connect (
1030                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_type_changed, this, _1), gui_context()
1031                         );
1032
1033                 meter_configuration_changed (_meter->input_streams ());
1034         }
1035
1036
1037         if (_route) {
1038                 _route->active_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::route_active_changed, this), gui_context ());
1039         }
1040
1041         /*
1042            if we have a non-hidden route (ie. we're not the click or the auditioner),
1043            pack some route-dependent stuff.
1044         */
1045
1046         hbox.pack_start (meter_hbox, true, true);
1047
1048 //      if (r && !r->is_auditioner()) {
1049 //              fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
1050 //      }
1051
1052         hbox.show_all ();
1053         setup_meters ();
1054 }
1055
1056 int
1057 GainMeter::get_gm_width ()
1058 {
1059         Gtk::Requisition sz;
1060         int min_w = 0;
1061         sz.width = 0;
1062         meter_metric_area.size_request (sz);
1063         min_w += sz.width;
1064         level_meter->size_request (sz);
1065         min_w += sz.width;
1066
1067         fader_alignment.size_request (sz);
1068         if (_width == Wide)
1069                 return max(sz.width * 2, min_w * 2) + 6;
1070         else
1071                 return sz.width + min_w + 6;
1072
1073 }
1074
1075 gint
1076 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1077 {
1078         if (!_route) {
1079                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1080                 return meter_expose_metrics(ev, MeterPeak, _types, &meter_metric_area);
1081         }
1082         return meter_expose_metrics(ev, _route->meter_type(), _types, &meter_metric_area);
1083 }
1084
1085 gint
1086 GainMeter::meter_ticks1_expose (GdkEventExpose *ev)
1087 {
1088         if (!_route) {
1089                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1090                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks1_area);
1091         }
1092         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks1_area);
1093 }
1094
1095 gint
1096 GainMeter::meter_ticks2_expose (GdkEventExpose *ev)
1097 {
1098         if (!_route) {
1099                 if (_types.empty()) { _types.push_back(DataType::AUDIO); }
1100                 return meter_expose_ticks(ev, MeterPeak, _types, &meter_ticks2_area);
1101         }
1102         return meter_expose_ticks(ev, _route->meter_type(), _types, &meter_ticks2_area);
1103 }
1104
1105 void
1106 GainMeter::on_style_changed (const Glib::RefPtr<Gtk::Style>&)
1107 {
1108         gain_display.queue_draw();
1109         peak_display.queue_draw();
1110 }
1111
1112 boost::shared_ptr<PBD::Controllable>
1113 GainMeterBase::get_controllable()
1114 {
1115         if (_amp) {
1116                 return _amp->gain_control();
1117         } else {
1118                 return boost::shared_ptr<PBD::Controllable>();
1119         }
1120 }
1121
1122 bool
1123 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1124 {
1125         return !!LevelMeterButtonPress (ev); /* EMIT SIGNAL */
1126 }
1127
1128 void
1129 GainMeter::meter_configuration_changed (ChanCount c)
1130 {
1131         int type = 0;
1132         _types.clear ();
1133
1134         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1135                 if (c.get (*i) > 0) {
1136                         _types.push_back (*i);
1137                         type |= 1 << (*i);
1138                 }
1139         }
1140
1141         if (_route
1142                         && boost::dynamic_pointer_cast<AudioTrack>(_route) == 0
1143                         && boost::dynamic_pointer_cast<MidiTrack>(_route) == 0
1144                         ) {
1145                 if (_route->active()) {
1146                         set_meter_strip_name ("AudioBusMetrics");
1147                 } else {
1148                         set_meter_strip_name ("AudioBusMetricsInactive");
1149                 }
1150         }
1151         else if (
1152                            (type == (1 << DataType::MIDI))
1153                         || (_route && boost::dynamic_pointer_cast<MidiTrack>(_route))
1154                         ) {
1155                 if (!_route || _route->active()) {
1156                         set_meter_strip_name ("MidiTrackMetrics");
1157                 } else {
1158                         set_meter_strip_name ("MidiTrackMetricsInactive");
1159                 }
1160         }
1161         else if (type == (1 << DataType::AUDIO)) {
1162                 if (!_route || _route->active()) {
1163                         set_meter_strip_name ("AudioTrackMetrics");
1164                 } else {
1165                         set_meter_strip_name ("AudioTrackMetricsInactive");
1166                 }
1167         } else {
1168                 if (!_route || _route->active()) {
1169                         set_meter_strip_name ("AudioMidiTrackMetrics");
1170                 } else {
1171                         set_meter_strip_name ("AudioMidiTrackMetricsInactive");
1172                 }
1173         }
1174
1175         setup_meters();
1176         meter_clear_pattern_cache(4);
1177         on_style_changed(Glib::RefPtr<Gtk::Style>());
1178 }
1179
1180 void
1181 GainMeter::route_active_changed ()
1182 {
1183         if (_meter) {
1184                 meter_configuration_changed (_meter->input_streams ());
1185         }
1186 }
1187
1188 void
1189 GainMeter::meter_type_changed (MeterType t)
1190 {
1191         _route->set_meter_type(t);
1192         RedrawMetrics();
1193 }