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