gtk2_ardour/gain_meter.cc

   1 /*
   2   Copyright (C) 2002 Paul Davis
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program; if not, write to the Free Software
  16   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <limits.h>
  21
  22 #include "ardour/amp.h"
  23 #include "ardour/route_group.h"
  24 #include "ardour/session_route.h"
  25 #include "ardour/dB.h"
  26 #include "ardour/utils.h"
  27
  28 #include <gtkmm/style.h>
  29 #include <gdkmm/color.h>
  30 #include <gtkmm2ext/utils.h>
  31 #include <gtkmm2ext/fastmeter.h>
  32 #include <gtkmm2ext/barcontroller.h>
  33 #include <gtkmm2ext/gtk_ui.h>
  34 #include "midi++/manager.h"
  35 #include "pbd/fastlog.h"
  36 #include "pbd/stacktrace.h"
  37
  38 #include "ardour_ui.h"
  39 #include "gain_meter.h"
  40 #include "global_signals.h"
  41 #include "logmeter.h"
  42 #include "gui_thread.h"
  43 #include "keyboard.h"
  44 #include "public_editor.h"
  45 #include "utils.h"
  46
  47 #include "ardour/session.h"
  48 #include "ardour/route.h"
  49 #include "ardour/meter.h"
  50
  51 #include "i18n.h"
  52
  53 using namespace ARDOUR;
  54 using namespace PBD;
  55 using namespace Gtkmm2ext;
  56 using namespace Gtk;
  57 using namespace std;
  58 using Gtkmm2ext::Keyboard;
  59
  60 sigc::signal<void> GainMeterBase::ResetAllPeakDisplays;
  61 sigc::signal<void,RouteGroup*> GainMeterBase::ResetGroupPeakDisplays;
  62
  63 GainMeter::MetricPatterns GainMeter::metric_patterns;
  64 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider;
  65 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider_desensitised;
  66
  67
  68 void
  69 GainMeter::setup_slider_pix ()
  70 {
  71         if ((slider = ::get_icon ("fader_belt")) == 0) {
  72                 throw failed_constructor();
  73         }
  74
  75         if ((slider_desensitised = ::get_icon ("fader_belt_desensitised")) == 0) {
  76                 throw failed_constructor();
  77         }
  78 }
  79
  80 GainMeterBase::GainMeterBase (Session* s,
  81                               const Glib::RefPtr<Gdk::Pixbuf>& pix,
  82                               const Glib::RefPtr<Gdk::Pixbuf>& pix_desensitised,
  83                               bool horizontal,
  84                               int fader_length)
  85         : gain_adjustment (gain_to_slider_position_with_max (1.0, Config->get_max_gain()), 0.0, 1.0, 0.01, 0.1)
  86         , gain_automation_style_button ("")
  87         , gain_automation_state_button ("")
  88         , style_changed (false)
  89         , dpi_changed (false)
  90         , _data_type (DataType::AUDIO)
  91
  92 {
  93         using namespace Menu_Helpers;
  94
  95         set_session (s);
  96
  97         ignore_toggle = false;
  98         meter_menu = 0;
  99         next_release_selects = false;
 100         _width = Wide;
 101
 102         if (horizontal) {
 103                 gain_slider = manage (new HSliderController (pix,
 104                                                              pix_desensitised,
 105                                                              &gain_adjustment,
 106                                                              fader_length,
 107                                                              false));
 108         } else {
 109                 gain_slider = manage (new VSliderController (pix,
 110                                                              pix_desensitised,
 111                                                              &gain_adjustment,
 112                                                              fader_length,
 113                                                              false));
 114         }
 115
 116         level_meter = new LevelMeter(_session);
 117
 118         level_meter->ButtonPress.connect_same_thread (_level_meter_connection, boost::bind (&GainMeterBase::level_meter_button_press, this, _1));
 119         meter_metric_area.signal_button_press_event().connect (sigc::mem_fun (*this, &GainMeterBase::level_meter_button_press));
 120         meter_metric_area.add_events (Gdk::BUTTON_PRESS_MASK);
 121
 122         gain_slider->signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_press));
 123         gain_slider->signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeter::gain_slider_button_release));
 124         gain_slider->set_name ("GainFader");
 125
 126         gain_display.set_name ("MixerStripGainDisplay");
 127         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 128         gain_display.signal_activate().connect (sigc::mem_fun (*this, &GainMeter::gain_activated));
 129         gain_display.signal_focus_in_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 130         gain_display.signal_focus_out_event().connect (sigc::mem_fun (*this, &GainMeter::gain_focused), false);
 131
 132         peak_display.set_name ("MixerStripPeakDisplay");
 133         set_size_request_to_display_given_text (peak_display, "-80.g", 2, 6); /* note the descender */
 134         max_peak = minus_infinity();
 135         peak_display.set_label (_("-inf"));
 136         peak_display.unset_flags (Gtk::CAN_FOCUS);
 137
 138         gain_automation_style_button.set_name ("MixerAutomationModeButton");
 139         gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
 140
 141         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 142         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 143
 144         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 145         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 146
 147         gain_automation_state_button.set_size_request(15, 15);
 148         gain_automation_style_button.set_size_request(15, 15);
 149
 150         gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 151         gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 152
 153         gain_astate_menu.set_name ("ArdourContextMenu");
 154         gain_astyle_menu.set_name ("ArdourContextMenu");
 155
 156         gain_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &GainMeterBase::gain_adjusted));
 157         peak_display.signal_button_release_event().connect (sigc::mem_fun(*this, &GainMeterBase::peak_button_release), false);
 158         gain_display.signal_key_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_key_press), false);
 159
 160         ResetAllPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_peak_display));
 161         ResetGroupPeakDisplays.connect (sigc::mem_fun(*this, &GainMeterBase::reset_group_peak_display));
 162
 163         UI::instance()->theme_changed.connect (sigc::mem_fun(*this, &GainMeterBase::on_theme_changed));
 164         ColorsChanged.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), false));
 165         DPIReset.connect (sigc::bind(sigc::mem_fun (*this, &GainMeterBase::color_handler), true));
 166 }
 167
 168 GainMeterBase::~GainMeterBase ()
 169 {
 170         delete meter_menu;
 171         delete level_meter;
 172 }
 173
 174 void
 175 GainMeterBase::set_controls (boost::shared_ptr<Route> r,
 176                              boost::shared_ptr<PeakMeter> pm,
 177                              boost::shared_ptr<Amp> amp)
 178 {
 179         connections.clear ();
 180         model_connections.drop_connections ();
 181
 182         if (!pm && !amp) {
 183                 level_meter->set_meter (0);
 184                 gain_slider->set_controllable (boost::shared_ptr<PBD::Controllable>());
 185                 _meter.reset ();
 186                 _amp.reset ();
 187                 _route.reset ();
 188                 return;
 189         }
 190
 191         _meter = pm;
 192         _amp = amp;
 193         _route = r;
 194
 195         level_meter->set_meter (pm.get());
 196         gain_slider->set_controllable (amp->gain_control());
 197
 198         if (amp) {
 199                 amp->ConfigurationChanged.connect (
 200                         model_connections, invalidator (*this), boost::bind (&GainMeterBase::setup_gain_adjustment, this), gui_context ()
 201                         );
 202         }
 203
 204         setup_gain_adjustment ();
 205
 206         if (!_route || !_route->is_hidden()) {
 207
 208                 using namespace Menu_Helpers;
 209
 210                 gain_astate_menu.items().clear ();
 211
 212                 gain_astate_menu.items().push_back (MenuElem (S_("Automation|Manual"),
 213                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 214                                                                           Evoral::Parameter(GainAutomation), (AutoState) ARDOUR::Off)));
 215                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 216                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 217                                                                     Evoral::Parameter(GainAutomation), (AutoState) Play)));
 218                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 219                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 220                                                                     Evoral::Parameter(GainAutomation), (AutoState) Write)));
 221                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 222                                                               sigc::bind (sigc::mem_fun (*(amp.get()), &Automatable::set_parameter_automation_state),
 223                                                                     Evoral::Parameter(GainAutomation), (AutoState) Touch)));
 224
 225                 connections.push_back (gain_automation_style_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_style_button_event), false));
 226                 connections.push_back (gain_automation_state_button.signal_button_press_event().connect (sigc::mem_fun(*this, &GainMeterBase::gain_automation_state_button_event), false));
 227
 228                 boost::shared_ptr<AutomationControl> gc = amp->gain_control();
 229
 230                 gc->alist()->automation_state_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_state_changed, this), gui_context());
 231                 gc->alist()->automation_style_changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeter::gain_automation_style_changed, this), gui_context());
 232
 233                 gain_automation_state_changed ();
 234         }
 235
 236         amp->gain_control()->Changed.connect (model_connections, invalidator (*this), boost::bind (&GainMeterBase::gain_changed, this), gui_context());
 237
 238         gain_changed ();
 239         show_gain ();
 240         update_gain_sensitive ();
 241 }
 242
 243 void
 244 GainMeterBase::setup_gain_adjustment ()
 245 {
 246         if (!_amp) {
 247                 return;
 248         }
 249
 250         if (_previous_amp_output_streams == _amp->output_streams ()) {
 251                 return;
 252         }
 253
 254         ignore_toggle = true;
 255
 256         if (_amp->output_streams().n_midi() == 0) {
 257                 _data_type = DataType::AUDIO;
 258                 gain_adjustment.set_lower (0.0);
 259                 gain_adjustment.set_upper (1.0);
 260                 gain_adjustment.set_step_increment (0.01);
 261                 gain_adjustment.set_page_increment (0.1);
 262                 gain_slider->set_default_value (gain_to_slider_position (1));
 263         } else {
 264                 _data_type = DataType::MIDI;
 265                 gain_adjustment.set_lower (0.0);
 266                 gain_adjustment.set_upper (2.0);
 267                 gain_adjustment.set_step_increment (1.0/128.0);
 268                 gain_adjustment.set_page_increment (10.0/128.0);
 269                 gain_slider->set_default_value (1.0);
 270         }
 271
 272         ignore_toggle = false;
 273
 274         effective_gain_display ();
 275
 276         _previous_amp_output_streams = _amp->output_streams ();
 277 }
 278
 279 void
 280 GainMeterBase::hide_all_meters ()
 281 {
 282         level_meter->hide_meters();
 283 }
 284
 285 void
 286 GainMeter::hide_all_meters ()
 287 {
 288         bool remove_metric_area = false;
 289
 290         GainMeterBase::hide_all_meters ();
 291
 292         if (remove_metric_area) {
 293                 if (meter_metric_area.get_parent()) {
 294                         level_meter->remove (meter_metric_area);
 295                 }
 296         }
 297 }
 298
 299 void
 300 GainMeterBase::setup_meters (int len)
 301 {
 302         level_meter->setup_meters(len, 5);
 303 }
 304
 305 void
 306 GainMeter::setup_meters (int len)
 307 {
 308         if (!meter_metric_area.get_parent()) {
 309                 level_meter->pack_end (meter_metric_area, false, false);
 310                 meter_metric_area.show_all ();
 311         }
 312         GainMeterBase::setup_meters (len);
 313 }
 314
 315 bool
 316 GainMeterBase::gain_key_press (GdkEventKey* ev)
 317 {
 318         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 319                 /* drop through to normal handling */
 320                 return false;
 321         }
 322         /* illegal key for gain entry */
 323         return true;
 324 }
 325
 326 bool
 327 GainMeterBase::peak_button_release (GdkEventButton* ev)
 328 {
 329         /* reset peak label */
 330
 331         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 332                 ResetAllPeakDisplays ();
 333         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 334                 if (_route) {
 335                         ResetGroupPeakDisplays (_route->route_group());
 336                 }
 337         } else {
 338                 reset_peak_display ();
 339         }
 340
 341         return true;
 342 }
 343
 344 void
 345 GainMeterBase::reset_peak_display ()
 346 {
 347         _meter->reset_max();
 348         level_meter->clear_meters();
 349         max_peak = -INFINITY;
 350         peak_display.set_label (_("-Inf"));
 351         peak_display.set_name ("MixerStripPeakDisplay");
 352 }
 353
 354 void
 355 GainMeterBase::reset_group_peak_display (RouteGroup* group)
 356 {
 357         if (_route && group == _route->route_group()) {
 358                 reset_peak_display ();
 359         }
 360 }
 361
 362 void
 363 GainMeterBase::popup_meter_menu (GdkEventButton *ev)
 364 {
 365         using namespace Menu_Helpers;
 366
 367         if (meter_menu == 0) {
 368                 meter_menu = new Gtk::Menu;
 369                 MenuList& items = meter_menu->items();
 370
 371                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 372                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 373                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 374                 items.push_back (SeparatorElem());
 375                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 376                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 377                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 378         }
 379
 380         meter_menu->popup (1, ev->time);
 381 }
 382
 383 bool
 384 GainMeterBase::gain_focused (GdkEventFocus* ev)
 385 {
 386         if (ev->in) {
 387                 gain_display.select_region (0, -1);
 388         } else {
 389                 gain_display.select_region (0, 0);
 390         }
 391         return false;
 392 }
 393
 394 void
 395 GainMeterBase::gain_activated ()
 396 {
 397         float f;
 398
 399         {
 400                 // Switch to user's preferred locale so that
 401                 // if they use different LC_NUMERIC conventions,
 402                 // we will honor them.
 403
 404                 PBD::LocaleGuard lg ("");
 405                 if (sscanf (gain_display.get_text().c_str(), "%f", &f) != 1) {
 406                         return;
 407                 }
 408         }
 409
 410         /* clamp to displayable values */
 411         if (_data_type == DataType::AUDIO) {
 412                 f = min (f, 6.0f);
 413                 _amp->set_gain (dB_to_coefficient(f), this);
 414         } else {
 415                 f = min (fabs (f), 2.0f);
 416                 _amp->set_gain (f, this);
 417         }
 418
 419         if (gain_display.has_focus()) {
 420                 PublicEditor::instance().reset_focus();
 421         }
 422 }
 423
 424 void
 425 GainMeterBase::show_gain ()
 426 {
 427         char buf[32];
 428
 429         float v = gain_adjustment.get_value();
 430
 431         switch (_data_type) {
 432         case DataType::AUDIO:
 433                 if (v == 0.0) {
 434                         strcpy (buf, _("-inf"));
 435                 } else {
 436                         snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (v, Config->get_max_gain())));
 437                 }
 438                 break;
 439         case DataType::MIDI:
 440                 snprintf (buf, sizeof (buf), "%.1f", v);
 441                 break;
 442         }
 443
 444         gain_display.set_text (buf);
 445 }
 446
 447 void
 448 GainMeterBase::gain_adjusted ()
 449 {
 450         gain_t value;
 451
 452         /* convert from adjustment range (0..1) to gain coefficient */
 453
 454         if (_data_type == DataType::AUDIO) {
 455                 value = slider_position_to_gain_with_max (gain_adjustment.get_value(), Config->get_max_gain());
 456         } else {
 457                 value = gain_adjustment.get_value();
 458         }
 459
 460         if (!ignore_toggle) {
 461                 if (_route && _route->amp() == _amp) {
 462                         _route->set_gain (value, this);
 463                 } else {
 464                         _amp->set_gain (value, this);
 465                 }
 466         }
 467
 468         show_gain ();
 469 }
 470
 471 void
 472 GainMeterBase::effective_gain_display ()
 473 {
 474         float value = 0.0;
 475
 476         switch (_data_type) {
 477         case DataType::AUDIO:
 478                 value = gain_to_slider_position_with_max (_amp->gain(), Config->get_max_gain());
 479                 break;
 480         case DataType::MIDI:
 481                 value = _amp->gain ();
 482                 break;
 483         }
 484
 485         if (gain_adjustment.get_value() != value) {
 486                 ignore_toggle = true;
 487                 gain_adjustment.set_value (value);
 488                 ignore_toggle = false;
 489         }
 490 }
 491
 492 void
 493 GainMeterBase::gain_changed ()
 494 {
 495         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&GainMeterBase::effective_gain_display, this));
 496 }
 497
 498 void
 499 GainMeterBase::set_meter_strip_name (const char * name)
 500 {
 501         meter_metric_area.set_name (name);
 502 }
 503
 504 void
 505 GainMeterBase::set_fader_name (const char * name)
 506 {
 507         uint32_t rgb_active = rgba_from_style (name, 0xff, 0, 0xff, 0, "bg", STATE_ACTIVE, false);
 508         uint32_t rgb_normal = rgba_from_style (name, 0xff, 0xff, 0, 0, "bg", STATE_NORMAL, false);
 509
 510         gain_slider->set_border_colors (rgb_normal, rgb_active);
 511 }
 512
 513 void
 514 GainMeterBase::update_gain_sensitive ()
 515 {
 516         bool x = !(_amp->gain_control()->alist()->automation_state() & Play);
 517         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (x);
 518 }
 519
 520 static MeterPoint
 521 next_meter_point (MeterPoint mp)
 522 {
 523         switch (mp) {
 524         case MeterInput:
 525                 return MeterPreFader;
 526                 break;
 527
 528         case MeterPreFader:
 529                 return MeterPostFader;
 530                 break;
 531
 532         case MeterPostFader:
 533                 return MeterOutput;
 534                 break;
 535
 536         case MeterOutput:
 537                 return MeterCustom;
 538                 break;
 539
 540         case MeterCustom:
 541                 return MeterInput;
 542                 break;
 543         }
 544
 545         /*NOTREACHED*/
 546         return MeterInput;
 547 }
 548
 549 gint
 550 GainMeterBase::meter_press(GdkEventButton* ev)
 551 {
 552         wait_for_release = false;
 553
 554         if (!_route) {
 555                 return FALSE;
 556         }
 557
 558         if (!ignore_toggle) {
 559
 560                 if (Keyboard::is_context_menu_event (ev)) {
 561
 562                         // no menu at this time.
 563
 564                 } else {
 565
 566                         if (Keyboard::is_button2_event(ev)) {
 567
 568                                 // Primary-button2 click is the midi binding click
 569                                 // button2-click is "momentary"
 570
 571                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 572                                         wait_for_release = true;
 573                                         old_meter_point = _route->meter_point ();
 574                                 }
 575                         }
 576
 577                         if (_route && (ev->button == 1 || Keyboard::is_button2_event (ev))) {
 578
 579                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 580
 581                                         /* Primary+Tertiary-click applies change to all routes */
 582
 583                                         _session->foreach_route (this, &GainMeterBase::set_meter_point, next_meter_point (_route->meter_point()));
 584
 585
 586                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 587
 588                                         /* Primary-click: solo mix group.
 589                                            NOTE: Primary-button2 is MIDI learn.
 590                                         */
 591
 592                                         if (ev->button == 1) {
 593                                                 set_route_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 594                                         }
 595
 596                                 } else {
 597
 598                                         /* click: change just this route */
 599
 600                                         // XXX no undo yet
 601
 602                                         _route->set_meter_point (next_meter_point (_route->meter_point()));
 603                                 }
 604                         }
 605                 }
 606         }
 607
 608         return true;
 609
 610 }
 611
 612 gint
 613 GainMeterBase::meter_release(GdkEventButton*)
 614 {
 615         if (!ignore_toggle) {
 616                 if (wait_for_release) {
 617                         wait_for_release = false;
 618
 619                         if (_route) {
 620                                 set_meter_point (*_route, old_meter_point);
 621                         }
 622                 }
 623         }
 624
 625         return true;
 626 }
 627
 628 void
 629 GainMeterBase::set_meter_point (Route& route, MeterPoint mp)
 630 {
 631         route.set_meter_point (mp);
 632 }
 633
 634 void
 635 GainMeterBase::set_route_group_meter_point (Route& route, MeterPoint mp)
 636 {
 637         RouteGroup* route_group;
 638
 639         if ((route_group = route.route_group ()) != 0) {
 640                 route_group->foreach_route (boost::bind (&Route::set_meter_point, _1, mp, false));
 641         } else {
 642                 route.set_meter_point (mp);
 643         }
 644 }
 645
 646 void
 647 GainMeterBase::meter_point_clicked ()
 648 {
 649         if (_route) {
 650                 /* WHAT? */
 651         }
 652 }
 653
 654 bool
 655 GainMeterBase::gain_slider_button_press (GdkEventButton* ev)
 656 {
 657         switch (ev->type) {
 658         case GDK_BUTTON_PRESS:
 659                 _amp->gain_control()->start_touch (_amp->session().transport_frame());
 660                 break;
 661         default:
 662                 return false;
 663         }
 664
 665         return true;
 666 }
 667
 668 bool
 669 GainMeterBase::gain_slider_button_release (GdkEventButton*)
 670 {
 671         _amp->gain_control()->stop_touch (false, _amp->session().transport_frame());
 672         return true;
 673 }
 674
 675 gint
 676 GainMeterBase::gain_automation_state_button_event (GdkEventButton *ev)
 677 {
 678         if (ev->type == GDK_BUTTON_RELEASE) {
 679                 return TRUE;
 680         }
 681
 682         switch (ev->button) {
 683                 case 1:
 684                         gain_astate_menu.popup (1, ev->time);
 685                         break;
 686                 default:
 687                         break;
 688         }
 689
 690         return TRUE;
 691 }
 692
 693 gint
 694 GainMeterBase::gain_automation_style_button_event (GdkEventButton *ev)
 695 {
 696         if (ev->type == GDK_BUTTON_RELEASE) {
 697                 return TRUE;
 698         }
 699
 700         switch (ev->button) {
 701         case 1:
 702                 gain_astyle_menu.popup (1, ev->time);
 703                 break;
 704         default:
 705                 break;
 706         }
 707         return TRUE;
 708 }
 709
 710 string
 711 GainMeterBase::astate_string (AutoState state)
 712 {
 713         return _astate_string (state, false);
 714 }
 715
 716 string
 717 GainMeterBase::short_astate_string (AutoState state)
 718 {
 719         return _astate_string (state, true);
 720 }
 721
 722 string
 723 GainMeterBase::_astate_string (AutoState state, bool shrt)
 724 {
 725         string sstr;
 726
 727         switch (state) {
 728         case ARDOUR::Off:
 729                 sstr = (shrt ? "M" : _("M"));
 730                 break;
 731         case Play:
 732                 sstr = (shrt ? "P" : _("P"));
 733                 break;
 734         case Touch:
 735                 sstr = (shrt ? "T" : _("T"));
 736                 break;
 737         case Write:
 738                 sstr = (shrt ? "W" : _("W"));
 739                 break;
 740         }
 741
 742         return sstr;
 743 }
 744
 745 string
 746 GainMeterBase::astyle_string (AutoStyle style)
 747 {
 748         return _astyle_string (style, false);
 749 }
 750
 751 string
 752 GainMeterBase::short_astyle_string (AutoStyle style)
 753 {
 754         return _astyle_string (style, true);
 755 }
 756
 757 string
 758 GainMeterBase::_astyle_string (AutoStyle style, bool shrt)
 759 {
 760         if (style & Trim) {
 761                 return _("Trim");
 762         } else {
 763                 /* XXX it might different in different languages */
 764
 765                 return (shrt ? _("Abs") : _("Abs"));
 766         }
 767 }
 768
 769 void
 770 GainMeterBase::gain_automation_style_changed ()
 771 {
 772         switch (_width) {
 773         case Wide:
 774                 gain_automation_style_button.set_label (astyle_string(_amp->gain_control()->alist()->automation_style()));
 775                 break;
 776         case Narrow:
 777                 gain_automation_style_button.set_label  (short_astyle_string(_amp->gain_control()->alist()->automation_style()));
 778                 break;
 779         }
 780 }
 781
 782 void
 783 GainMeterBase::gain_automation_state_changed ()
 784 {
 785         ENSURE_GUI_THREAD (*this, &GainMeterBase::gain_automation_state_changed)
 786
 787         bool x;
 788
 789         switch (_width) {
 790         case Wide:
 791                 gain_automation_state_button.set_label (astate_string(_amp->gain_control()->alist()->automation_state()));
 792                 break;
 793         case Narrow:
 794                 gain_automation_state_button.set_label (short_astate_string(_amp->gain_control()->alist()->automation_state()));
 795                 break;
 796         }
 797
 798         x = (_amp->gain_control()->alist()->automation_state() != ARDOUR::Off);
 799
 800         if (gain_automation_state_button.get_active() != x) {
 801                 ignore_toggle = true;
 802                 gain_automation_state_button.set_active (x);
 803                 ignore_toggle = false;
 804         }
 805
 806         update_gain_sensitive ();
 807
 808         /* start watching automation so that things move */
 809
 810         gain_watching.disconnect();
 811
 812         if (x) {
 813                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &GainMeterBase::effective_gain_display));
 814         }
 815 }
 816
 817 void
 818 GainMeterBase::update_meters()
 819 {
 820         char buf[32];
 821         float mpeak = level_meter->update_meters();
 822
 823         if (mpeak > max_peak) {
 824                 max_peak = mpeak;
 825                 if (mpeak <= -200.0f) {
 826                         peak_display.set_label (_("-inf"));
 827                 } else {
 828                         snprintf (buf, sizeof(buf), "%.1f", mpeak);
 829                         peak_display.set_label (buf);
 830                 }
 831
 832                 if (mpeak >= 0.0f) {
 833                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 834                 }
 835         }
 836 }
 837
 838 void GainMeterBase::color_handler(bool dpi)
 839 {
 840         color_changed = true;
 841         dpi_changed = (dpi) ? true : false;
 842         setup_meters();
 843 }
 844
 845 void
 846 GainMeterBase::set_width (Width w, int len)
 847 {
 848         _width = w;
 849         level_meter->setup_meters (len);
 850 }
 851
 852
 853 void
 854 GainMeterBase::on_theme_changed()
 855 {
 856         style_changed = true;
 857 }
 858
 859 GainMeter::GainMeter (Session* s, int fader_length)
 860         : GainMeterBase (s, slider, slider_desensitised, false, fader_length)
 861         , gain_display_box(true, 0)
 862         , hbox(true, 2)
 863 {
 864         gain_display_box.pack_start (gain_display, true, true);
 865
 866         meter_metric_area.set_name ("AudioTrackMetrics");
 867         set_size_request_to_display_given_text (meter_metric_area, "-127", 0, 0);
 868
 869         gain_automation_style_button.set_name ("MixerAutomationModeButton");
 870         gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
 871
 872         ARDOUR_UI::instance()->set_tip (gain_automation_state_button, _("Fader automation mode"));
 873         ARDOUR_UI::instance()->set_tip (gain_automation_style_button, _("Fader automation type"));
 874
 875         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 876         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 877
 878         gain_automation_state_button.set_size_request(15, 15);
 879         gain_automation_style_button.set_size_request(15, 15);
 880
 881         fader_vbox = manage (new Gtk::VBox());
 882         fader_vbox->set_spacing (0);
 883         fader_vbox->pack_start (*gain_slider, true, true);
 884
 885         fader_alignment.set (0.5, 0.5, 0.0, 1.0);
 886         fader_alignment.add (*fader_vbox);
 887
 888         hbox.pack_start (fader_alignment, true, true);
 889
 890         set_spacing (2);
 891
 892         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 893         pack_start (hbox, Gtk::PACK_SHRINK);
 894
 895         meter_alignment.set (0.5, 0.5, 0.0, 1.0);
 896         meter_alignment.add (*level_meter);
 897
 898         meter_metric_area.signal_expose_event().connect (
 899                 sigc::mem_fun(*this, &GainMeter::meter_metrics_expose));
 900 }
 901
 902 void
 903 GainMeter::set_controls (boost::shared_ptr<Route> r,
 904                          boost::shared_ptr<PeakMeter> meter,
 905                          boost::shared_ptr<Amp> amp)
 906 {
 907         if (meter_alignment.get_parent()) {
 908                 hbox.remove (meter_alignment);
 909         }
 910
 911         if (peak_display.get_parent()) {
 912                 gain_display_box.remove (peak_display);
 913         }
 914
 915         if (gain_automation_state_button.get_parent()) {
 916                 fader_vbox->remove (gain_automation_state_button);
 917         }
 918
 919         GainMeterBase::set_controls (r, meter, amp);
 920
 921         if (_meter) {
 922                 _meter->ConfigurationChanged.connect (
 923                         model_connections, invalidator (*this), boost::bind (&GainMeter::meter_configuration_changed, this, _1), gui_context()
 924                         );
 925
 926                 meter_configuration_changed (_meter->input_streams ());
 927         }
 928
 929
 930         /*
 931            if we have a non-hidden route (ie. we're not the click or the auditioner),
 932            pack some route-dependent stuff.
 933         */
 934
 935         gain_display_box.pack_end (peak_display, true, true);
 936         hbox.pack_start (meter_alignment, true, true);
 937
 938         if (r && !r->is_hidden()) {
 939                 fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 940         }
 941
 942         setup_meters ();
 943         hbox.show_all ();
 944 }
 945
 946 int
 947 GainMeter::get_gm_width ()
 948 {
 949         Gtk::Requisition sz;
 950         hbox.size_request (sz);
 951         return sz.width;
 952 }
 953
 954 cairo_pattern_t*
 955 GainMeter::render_metrics (Gtk::Widget& w, vector<DataType> types)
 956 {
 957         Glib::RefPtr<Gdk::Window> win (w.get_window());
 958
 959         gint width, height;
 960         win->get_size (width, height);
 961
 962         cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
 963         cairo_t* cr = cairo_create (surface);
 964         PangoLayout* layout = gtk_widget_create_pango_layout (w.gobj(), "");
 965
 966         cairo_move_to (cr, 0, 0);
 967         cairo_rectangle (cr, 0, 0, width, height);
 968         {
 969                 Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
 970                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 971         }
 972         cairo_fill (cr);
 973
 974         for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 975
 976                 Gdk::Color c;
 977
 978                 if (types.size() > 1) {
 979                         /* we're overlaying more than 1 set of marks, so use different colours */
 980                         Gdk::Color c;
 981                         switch (*i) {
 982                         case DataType::AUDIO:
 983                                 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 984                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 985                                 break;
 986                         case DataType::MIDI:
 987                                 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
 988                                 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 989                                 break;
 990                         }
 991                 } else {
 992                         c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
 993                         cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 994                 }
 995
 996                 vector<int> points;
 997
 998                 switch (*i) {
 999                 case DataType::AUDIO:
1000                         points.push_back (-50);
1001                         points.push_back (-40);
1002                         points.push_back (-30);
1003                         points.push_back (-20);
1004                         points.push_back (-10);
1005                         points.push_back (-3);
1006                         points.push_back (0);
1007                         points.push_back (4);
1008                         break;
1009
1010                 case DataType::MIDI:
1011                         points.push_back (0);
1012                         if (types.size() == 1) {
1013                                 points.push_back (32);
1014                         } else {
1015                                 /* tweak so as not to overlay the -30dB mark */
1016                                 points.push_back (48);
1017                         }
1018                         points.push_back (64);
1019                         points.push_back (96);
1020                         points.push_back (127);
1021                         break;
1022                 }
1023
1024                 char buf[32];
1025
1026                 for (vector<int>::const_iterator j = points.begin(); j != points.end(); ++j) {
1027
1028                         float fraction = 0;
1029                         switch (*i) {
1030                         case DataType::AUDIO:
1031                                 fraction = log_meter (*j);
1032                                 break;
1033                         case DataType::MIDI:
1034                                 fraction = *j / 127.0;
1035                                 break;
1036                         }
1037
1038                         gint const pos = height - (gint) floor (height * fraction);
1039
1040                         cairo_set_line_width (cr, 1.0);
1041                         cairo_move_to (cr, 0, pos);
1042                         cairo_line_to (cr, 4, pos);
1043                         cairo_stroke (cr);
1044
1045                         snprintf (buf, sizeof (buf), "%d", abs (*j));
1046                         pango_layout_set_text (layout, buf, strlen (buf));
1047
1048                         /* we want logical extents, not ink extents here */
1049
1050                         int tw, th;
1051                         pango_layout_get_pixel_size (layout, &tw, &th);
1052
1053                         int p = pos - (th / 2);
1054                         p = min (p, height - th);
1055                         p = max (p, 0);
1056
1057                         cairo_move_to (cr, 6, p);
1058                         pango_cairo_show_layout (cr, layout);
1059                 }
1060         }
1061
1062         cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
1063         MetricPatterns::iterator p;
1064
1065         if ((p = metric_patterns.find (w.get_name())) != metric_patterns.end()) {
1066                 cairo_pattern_destroy (p->second);
1067         }
1068
1069         metric_patterns[w.get_name()] = pattern;
1070
1071         cairo_destroy (cr);
1072         cairo_surface_destroy (surface);
1073         g_object_unref (layout);
1074
1075         return pattern;
1076 }
1077
1078 gint
1079 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
1080 {
1081         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
1082         cairo_t* cr;
1083
1084         cr = gdk_cairo_create (win->gobj());
1085
1086         /* clip to expose area */
1087
1088         gdk_cairo_rectangle (cr, &ev->area);
1089         cairo_clip (cr);
1090
1091         cairo_pattern_t* pattern;
1092         MetricPatterns::iterator i = metric_patterns.find (meter_metric_area.get_name());
1093
1094         if (i == metric_patterns.end() || style_changed || dpi_changed) {
1095                 pattern = render_metrics (meter_metric_area, _types);
1096         } else {
1097                 pattern = i->second;
1098         }
1099
1100         cairo_move_to (cr, 0, 0);
1101         cairo_set_source (cr, pattern);
1102
1103         gint width, height;
1104         win->get_size (width, height);
1105
1106         cairo_rectangle (cr, 0, 0, width, height);
1107         cairo_fill (cr);
1108
1109         style_changed = false;
1110         dpi_changed = false;
1111
1112         cairo_destroy (cr);
1113
1114         return true;
1115 }
1116
1117 boost::shared_ptr<PBD::Controllable>
1118 GainMeterBase::get_controllable()
1119 {
1120         if (_amp) {
1121                 return _amp->gain_control();
1122         } else {
1123                 return boost::shared_ptr<PBD::Controllable>();
1124         }
1125 }
1126
1127 bool
1128 GainMeterBase::level_meter_button_press (GdkEventButton* ev)
1129 {
1130         return LevelMeterButtonPress (ev); /* EMIT SIGNAL */
1131 }
1132
1133 void
1134 GainMeter::meter_configuration_changed (ChanCount c)
1135 {
1136         _types.clear ();
1137
1138         for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) {
1139                 if (c.get (*i) > 0) {
1140                         _types.push_back (*i);
1141                 }
1142         }
1143
1144         style_changed = true;
1145         meter_metric_area.queue_draw ();
1146 }
1147