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/io.h>
  23 #include <ardour/route.h>
  24 #include <ardour/route_group.h>
  25 #include <ardour/session.h>
  26 #include <ardour/session_route.h>
  27 #include <ardour/dB.h>
  28
  29 #include <gtkmm/style.h>
  30 #include <gdkmm/color.h>
  31 #include <gtkmm2ext/utils.h>
  32 #include <gtkmm2ext/fastmeter.h>
  33 #include <gtkmm2ext/stop_signal.h>
  34 #include <gtkmm2ext/barcontroller.h>
  35 #include <gtkmm2ext/gtk_ui.h>
  36 #include <midi++/manager.h>
  37 #include <pbd/fastlog.h>
  38
  39 #include "ardour_ui.h"
  40 #include "gain_meter.h"
  41 #include "utils.h"
  42 #include "logmeter.h"
  43 #include "gui_thread.h"
  44 #include "keyboard.h"
  45 #include "public_editor.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 sigc;
  58 using namespace std;
  59
  60 sigc::signal<void> GainMeter::ResetAllPeakDisplays;
  61 sigc::signal<void,RouteGroup*> GainMeter::ResetGroupPeakDisplays;
  62 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider;
  63 Glib::RefPtr<Gdk::Pixbuf> GainMeter::rail;
  64 map<string,Glib::RefPtr<Gdk::Pixmap> > GainMeter::metric_pixmaps;
  65
  66 int
  67 GainMeter::setup_slider_pix ()
  68 {
  69         slider = ::get_icon ("fader_belt");
  70         return 0;
  71 }
  72
  73 GainMeter::GainMeter (boost::shared_ptr<IO> io, Session& s)
  74         : _io (io),
  75           _session (s),
  76           gain_slider (0),
  77           // 0.781787 is the value needed for gain to be set to 0.
  78           gain_adjustment (0.781787, 0.0, 1.0, 0.01, 0.1),
  79           gain_automation_style_button (""),
  80           gain_automation_state_button (""),
  81           regular_meter_width(5)
  82
  83 {
  84         if (slider == 0) {
  85                 setup_slider_pix ();
  86         }
  87
  88         ignore_toggle = false;
  89         meter_menu = 0;
  90         next_release_selects = false;
  91         style_changed = true;
  92
  93         gain_slider = manage (new VSliderController (slider,
  94                                                      &gain_adjustment,
  95                                                      *_io->gain_control().get(),
  96                                                      false));
  97
  98         gain_slider->signal_button_press_event().connect (mem_fun(*this, &GainMeter::start_gain_touch));
  99         gain_slider->signal_button_release_event().connect (mem_fun(*this, &GainMeter::end_gain_touch));
 100         gain_slider->set_name ("GainFader");
 101
 102         gain_display.set_name ("MixerStripGainDisplay");
 103         gain_display.set_has_frame (false);
 104         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 105         gain_display.signal_activate().connect (mem_fun (*this, &GainMeter::gain_activated));
 106         gain_display.signal_focus_in_event().connect (mem_fun (*this, &GainMeter::gain_focused), false);
 107         gain_display.signal_focus_out_event().connect (mem_fun (*this, &GainMeter::gain_focused), false);
 108
 109         gain_display_box.set_name ("MeterMetricsStrip");
 110         gain_display_box.set_homogeneous (true);
 111         gain_display_box.set_spacing (2);
 112         gain_display_box.pack_start (gain_display, true, true);
 113
 114         peak_display.set_name ("MixerStripPeakDisplay");
 115 //      peak_display.set_has_frame (false);
 116 //      peak_display.set_editable (false);
 117         set_size_request_to_display_given_text  (peak_display, "-80.g", 2, 6); /* note the descender */
 118         max_peak = minus_infinity();
 119         peak_display.set_label (_("-inf"));
 120         peak_display.unset_flags (Gtk::CAN_FOCUS);
 121
 122         meter_metric_area.set_name ("MeterMetricsStrip");
 123         set_size_request_to_display_given_text (meter_metric_area, "-50", 0, 0);
 124
 125         meter_packer.set_spacing (2);
 126
 127         gain_automation_style_button.set_name ("MixerAutomationModeButton");
 128         gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
 129
 130         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_state_button, _("Fader automation mode"));
 131         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_style_button, _("Fader automation type"));
 132
 133         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 134         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 135
 136         gain_automation_state_button.set_size_request(15, 15);
 137         gain_automation_style_button.set_size_request(15, 15);
 138
 139         HBox* fader_centering_box = manage (new HBox);
 140         fader_centering_box->pack_start (*gain_slider, true, false);
 141
 142         fader_vbox = manage (new Gtk::VBox());
 143         fader_vbox->set_spacing (0);
 144         fader_vbox->pack_start (*fader_centering_box, false, false, 0);
 145
 146         hbox.set_spacing (2);
 147
 148         if (_io->default_type() == ARDOUR::DataType::AUDIO) {
 149                 hbox.pack_start (*fader_vbox, true, true);
 150         }
 151
 152         set_width (Narrow);
 153
 154         Route* r;
 155
 156         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 157
 158                 /*
 159                    if we have a non-hidden route (ie. we're not the click or the auditioner),
 160                    pack some route-dependent stuff.
 161                 */
 162
 163                 gain_display_box.pack_end (peak_display, true, true);
 164                 hbox.pack_end (meter_packer, true, true);
 165
 166                 using namespace Menu_Helpers;
 167
 168                 gain_astate_menu.items().push_back (MenuElem (_("Manual"),
 169                                                       bind (mem_fun (*_io, &IO::set_parameter_automation_state),
 170                                                                   Parameter(GainAutomation), (AutoState) Off)));
 171                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 172                                                       bind (mem_fun (*_io, &IO::set_parameter_automation_state),
 173                                                                   Parameter(GainAutomation), (AutoState) Play)));
 174                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 175                                                       bind (mem_fun (*_io, &IO::set_parameter_automation_state),
 176                                                                   Parameter(GainAutomation), (AutoState) Write)));
 177                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 178                                                       bind (mem_fun (*_io, &IO::set_parameter_automation_state),
 179                                                                   Parameter(GainAutomation), (AutoState) Touch)));
 180
 181                 gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 182                 gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 183
 184                 gain_astate_menu.set_name ("ArdourContextMenu");
 185                 gain_astyle_menu.set_name ("ArdourContextMenu");
 186
 187                 gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
 188                 gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
 189
 190                 r->gain_control()->list()->automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
 191                 r->gain_control()->list()->automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
 192                 fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 193
 194                 gain_automation_state_changed ();
 195         }
 196
 197         set_spacing (2);
 198
 199         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 200         pack_start (hbox, Gtk::PACK_SHRINK);
 201
 202         _io->gain_control()->Changed.connect (mem_fun(*this, &GainMeter::gain_changed));
 203
 204         meter_metric_area.signal_expose_event().connect (mem_fun(*this, &GainMeter::meter_metrics_expose));
 205         gain_adjustment.signal_value_changed().connect (mem_fun(*this, &GainMeter::gain_adjusted));
 206         peak_display.signal_button_release_event().connect (mem_fun(*this, &GainMeter::peak_button_release), false);
 207         gain_display.signal_key_press_event().connect (mem_fun(*this, &GainMeter::gain_key_press), false);
 208
 209         Config->ParameterChanged.connect (mem_fun (*this, &GainMeter::parameter_changed));
 210
 211         gain_changed ();
 212         show_gain ();
 213
 214         update_gain_sensitive ();
 215
 216         ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
 217         ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
 218
 219         UI::instance()->theme_changed.connect (mem_fun(*this, &GainMeter::on_theme_changed));
 220
 221         ColorsChanged.connect (mem_fun (*this, &GainMeter::color_handler));
 222         //hide_all();
 223 }
 224
 225 void
 226 GainMeter::set_width (Width w, int len)
 227 {
 228         _width = w;
 229         setup_meters (len);
 230 }
 231
 232 Glib::RefPtr<Gdk::Pixmap>
 233 GainMeter::render_metrics (Gtk::Widget& w)
 234 {
 235         //cerr << "GainMeter::render_metrics() called, red = " << w.get_style()->get_bg(Gtk::STATE_NORMAL).get_red() << endl;//DEBUG
 236         Glib::RefPtr<Gdk::Window> win (w.get_window());
 237         Glib::RefPtr<Gdk::GC> fg_gc (w.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 238         Glib::RefPtr<Gdk::GC> bg_gc (w.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 239         gint width, height;
 240         int  db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
 241         char buf[32];
 242
 243         win->get_size (width, height);
 244
 245         Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (win, width, height);
 246
 247         metric_pixmaps[w.get_name()] = pixmap;
 248
 249         pixmap->draw_rectangle (bg_gc, true, 0, 0, width, height);
 250
 251         Glib::RefPtr<Pango::Layout> layout = w.create_pango_layout("");
 252
 253         for (uint32_t i = 0; i < sizeof (db_points)/sizeof (db_points[0]); ++i) {
 254
 255                 float fraction = log_meter (db_points[i]);
 256                 gint pos = height - (gint) floor (height * fraction);
 257
 258                 snprintf (buf, sizeof (buf), "%d", abs (db_points[i]));
 259
 260                 layout->set_text (buf);
 261
 262                 /* we want logical extents, not ink extents here */
 263
 264                 int width, height;
 265                 layout->get_pixel_size (width, height);
 266
 267                 pixmap->draw_line (fg_gc, 0, pos, 4, pos);
 268                 pixmap->draw_layout (fg_gc, 6, pos - (height/2), layout);
 269         }
 270
 271         return pixmap;
 272 }
 273
 274 gint
 275 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 276 {
 277         /* Only draw dB scale if we're metering audio */
 278         if (_io->n_inputs().n_audio() + _io->n_outputs().n_audio() == 0)
 279                 return true;
 280
 281         static Glib::RefPtr<Gtk::Style> meter_style;
 282
 283         if (style_changed) {
 284                 meter_style = meter_metric_area.get_style();
 285         }
 286
 287         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 288         Glib::RefPtr<Gdk::GC> fg_gc (meter_style->get_fg_gc (Gtk::STATE_NORMAL));
 289         Glib::RefPtr<Gdk::GC> bg_gc (meter_style->get_bg_gc (Gtk::STATE_NORMAL));
 290
 291         GdkRectangle base_rect;
 292         GdkRectangle draw_rect;
 293         gint width, height;
 294
 295         win->get_size (width, height);
 296
 297         base_rect.width = width;
 298         base_rect.height = height;
 299         base_rect.x = 0;
 300         base_rect.y = 0;
 301
 302         Glib::RefPtr<Gdk::Pixmap> pixmap;
 303         std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
 304
 305         if (i == metric_pixmaps.end() || style_changed) {
 306                 pixmap = render_metrics (meter_metric_area);
 307         } else {
 308                 pixmap = i->second;
 309         }
 310
 311         gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
 312         win->draw_rectangle (bg_gc, false, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 313         win->draw_drawable (fg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 314
 315         style_changed = false;
 316         return true;
 317 }
 318
 319 void
 320 GainMeter::on_theme_changed()
 321 {
 322         style_changed = true;
 323 }
 324
 325 GainMeter::~GainMeter ()
 326 {
 327         if (meter_menu) {
 328                 delete meter_menu;
 329         }
 330
 331         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
 332                 if ((*i).meter) {
 333                         delete (*i).meter;
 334                 }
 335         }
 336 }
 337
 338 void
 339 GainMeter::update_meters ()
 340 {
 341         vector<MeterInfo>::iterator i;
 342         uint32_t n;
 343         float peak, mpeak;
 344         char buf[32];
 345
 346         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 347                 if ((*i).packed) {
 348                         peak = _io->peak_meter().peak_power (n);
 349
 350                         (*i).meter->set (log_meter (peak));
 351
 352                         mpeak = _io->peak_meter().max_peak_power(n);
 353
 354                         if (mpeak > max_peak) {
 355                                 max_peak = mpeak;
 356                                 /* set peak display */
 357                                 if (max_peak <= -200.0f) {
 358                                         peak_display.set_label (_("-inf"));
 359                                 } else {
 360                                         snprintf (buf, sizeof(buf), "%.1f", max_peak);
 361                                         peak_display.set_label (buf);
 362                                 }
 363
 364                                 if (max_peak >= 0.0f) {
 365                                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 366                                 }
 367                         }
 368                 }
 369         }
 370 }
 371
 372 void
 373 GainMeter::parameter_changed(const char* parameter_name)
 374 {
 375 #define PARAM_IS(x) (!strcmp (parameter_name, (x)))
 376
 377         ENSURE_GUI_THREAD (bind (mem_fun(*this, &GainMeter::parameter_changed), parameter_name));
 378
 379         if (PARAM_IS ("meter-hold")) {
 380
 381                 vector<MeterInfo>::iterator i;
 382                 uint32_t n;
 383
 384                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 385
 386                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 387                 }
 388         }
 389
 390 #undef PARAM_IS
 391 }
 392
 393 void
 394 GainMeter::hide_all_meters ()
 395 {
 396         bool remove_metric_area = false;
 397
 398         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 399                 if ((*i).packed) {
 400                         remove_metric_area = true;
 401                         meter_packer.remove (*((*i).meter));
 402                         (*i).packed = false;
 403                 }
 404         }
 405
 406         if (remove_metric_area) {
 407                 if (meter_metric_area.get_parent()) {
 408                         meter_packer.remove (meter_metric_area);
 409                 }
 410         }
 411 }
 412
 413 void
 414 GainMeter::setup_meters (int len)
 415 {
 416         uint32_t nmeters = _io->n_outputs().n_total();
 417         guint16 width;
 418
 419         hide_all_meters ();
 420
 421         Route* r;
 422
 423         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 424
 425                 switch (r->meter_point()) {
 426                 case MeterInput:
 427                         nmeters = r->n_inputs().n_total();
 428                         break;
 429                 case MeterPreFader:
 430                         nmeters = r->pre_fader_streams().n_total();
 431                         break;
 432                 case MeterPostFader:
 433                         nmeters = r->n_outputs().n_total();
 434                         break;
 435                 }
 436
 437         } else {
 438
 439                 nmeters = _io->n_outputs().n_total();
 440
 441         }
 442
 443         if (nmeters == 0) {
 444                 return;
 445         }
 446
 447         if (nmeters <= 2) {
 448                 width = regular_meter_width;
 449         } else {
 450                 width = thin_meter_width;
 451         }
 452
 453         while (meters.size() < nmeters) {
 454                 meters.push_back (MeterInfo());
 455         }
 456
 457         /* pack them backwards */
 458
 459         meter_packer.pack_end (meter_metric_area, false, false);
 460         meter_metric_area.show_all ();
 461
 462         int b = ARDOUR_UI::config()->canvasvar_MeterColorBase.get();
 463         int m = ARDOUR_UI::config()->canvasvar_MeterColorMid.get();
 464         int t = ARDOUR_UI::config()->canvasvar_MeterColorTop.get();
 465         int c = ARDOUR_UI::config()->canvasvar_MeterColorClip.get();
 466
 467         //cerr << "GainMeter::setup_meters() called color_changed = " << color_changed << " colors: " << hex << b << " " << m << " " << t << " " << c << endl;//DEBUG
 468
 469         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 470                 if (meters[n].width != width || meters[n].length != len || color_changed) {
 471                         delete meters[n].meter;
 472                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, FastMeter::Vertical, len, b, m, t, c);
 473                         //cerr << "GainMeter::setup_meters() w:l = " << width << ":" << len << endl;//DEBUG
 474                         meters[n].width = width;
 475                         meters[n].length = len;
 476                         meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
 477                         meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
 478                 }
 479
 480                 meter_packer.pack_end (*meters[n].meter, false, false);
 481                 meters[n].meter->show_all ();
 482                 meters[n].packed = true;
 483         }
 484         color_changed = false;
 485 }
 486
 487 int
 488 GainMeter::get_gm_width ()
 489 {
 490         Gtk::Requisition sz = hbox.size_request ();
 491         return sz.width;
 492 }
 493
 494 bool
 495 GainMeter::gain_key_press (GdkEventKey* ev)
 496 {
 497         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 498                 /* drop through to normal handling */
 499                 return false;
 500         }
 501         /* illegal key for gain entry */
 502         return true;
 503 }
 504
 505 bool
 506 GainMeter::peak_button_release (GdkEventButton* ev)
 507 {
 508         /* reset peak label */
 509
 510         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 511                 ResetAllPeakDisplays ();
 512         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 513                 Route* r;
 514                 if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 515                         ResetGroupPeakDisplays (r->mix_group());
 516                 }
 517         } else {
 518                 reset_peak_display ();
 519         }
 520
 521         return true;
 522 }
 523
 524 void
 525 GainMeter::reset_peak_display ()
 526 {
 527         Route * r;
 528         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 529                 r->peak_meter().reset_max();
 530         }
 531
 532         max_peak = -INFINITY;
 533         peak_display.set_label (_("-Inf"));
 534         peak_display.set_name ("MixerStripPeakDisplay");
 535 }
 536
 537 void
 538 GainMeter::reset_group_peak_display (RouteGroup* group)
 539 {
 540         Route* r;
 541         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 542                 if (group == r->mix_group()) {
 543                         reset_peak_display ();
 544                 }
 545         }
 546 }
 547
 548 gint
 549 GainMeter::meter_button_release (GdkEventButton* ev, uint32_t which)
 550 {
 551         switch (ev->button) {
 552         case 1:
 553                 meters[which].meter->clear();
 554                 max_peak = minus_infinity();
 555                 peak_display.set_label (_("-inf"));
 556                 peak_display.set_name ("MixerStripPeakDisplay");
 557                 break;
 558
 559         case 3:
 560                 // popup_meter_menu (ev);
 561                 break;
 562         };
 563
 564         return TRUE;
 565 }
 566
 567 void
 568 GainMeter::popup_meter_menu (GdkEventButton *ev)
 569 {
 570         using namespace Menu_Helpers;
 571
 572         if (meter_menu == 0) {
 573                 meter_menu = new Gtk::Menu;
 574                 MenuList& items = meter_menu->items();
 575
 576                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 577                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 578                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 579                 items.push_back (SeparatorElem());
 580                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 581                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 582                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 583         }
 584
 585         meter_menu->popup (1, ev->time);
 586 }
 587
 588 bool
 589 GainMeter::gain_focused (GdkEventFocus* ev)
 590 {
 591         if (ev->in) {
 592                 gain_display.select_region (0, -1);
 593         } else {
 594                 gain_display.select_region (0, 0);
 595         }
 596         return false;
 597 }
 598
 599 void
 600 GainMeter::gain_activated ()
 601 {
 602         float f;
 603
 604         if (sscanf (gain_display.get_text().c_str(), "%f", &f) == 1) {
 605
 606                 /* clamp to displayable values */
 607
 608                 f = min (f, 6.0f);
 609
 610                 _io->gain_control()->set_value (dB_to_coefficient(f));
 611
 612                 if (gain_display.has_focus()) {
 613                         PublicEditor::instance().reset_focus();
 614                 }
 615         }
 616 }
 617
 618 void
 619 GainMeter::show_gain ()
 620 {
 621         char buf[32];
 622
 623         float v = gain_adjustment.get_value();
 624
 625         if (v == 0.0) {
 626                 strcpy (buf, _("-inf"));
 627         } else {
 628                 snprintf (buf, 32, "%.1f", coefficient_to_dB (slider_position_to_gain (v)));
 629         }
 630
 631         gain_display.set_text (buf);
 632 }
 633
 634 void
 635 GainMeter::gain_adjusted ()
 636 {
 637         if (!ignore_toggle) {
 638                 _io->gain_control()->set_value (slider_position_to_gain (gain_adjustment.get_value()));
 639         }
 640         show_gain ();
 641 }
 642
 643 void
 644 GainMeter::effective_gain_display ()
 645 {
 646         gfloat value = gain_to_slider_position (_io->effective_gain());
 647
 648         if (gain_adjustment.get_value() != value) {
 649                 ignore_toggle = true;
 650                 gain_adjustment.set_value (value);
 651                 ignore_toggle = false;
 652         }
 653 }
 654
 655 void
 656 GainMeter::gain_changed ()
 657 {
 658         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &GainMeter::effective_gain_display));
 659 }
 660
 661 void
 662 GainMeter::set_meter_strip_name (const char * name)
 663 {
 664         meter_metric_area.set_name (name);
 665 }
 666
 667 void
 668 GainMeter::set_fader_name (const char * name)
 669 {
 670         gain_slider->set_name (name);
 671 }
 672
 673 void
 674 GainMeter::update_gain_sensitive ()
 675 {
 676         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io->gain_control()->list()->automation_state() & Play));
 677 }
 678
 679
 680 static MeterPoint
 681 next_meter_point (MeterPoint mp)
 682 {
 683         switch (mp) {
 684         case MeterInput:
 685                 return MeterPreFader;
 686                 break;
 687
 688         case MeterPreFader:
 689                 return MeterPostFader;
 690                 break;
 691
 692         case MeterPostFader:
 693                 return MeterInput;
 694                 break;
 695         }
 696         /*NOTREACHED*/
 697         return MeterInput;
 698 }
 699
 700 gint
 701 GainMeter::meter_press(GdkEventButton* ev)
 702 {
 703         Route* _route;
 704
 705         wait_for_release = false;
 706
 707         if ((_route = dynamic_cast<Route*>(_io.get())) == 0) {
 708                 return FALSE;
 709         }
 710
 711         if (!ignore_toggle) {
 712
 713                 if (Keyboard::is_context_menu_event (ev)) {
 714
 715                         // no menu at this time.
 716
 717                 } else {
 718
 719                         if (ev->button == 2) {
 720
 721                                 // Primary-button2 click is the midi binding click
 722                                 // button2-click is "momentary"
 723
 724                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 725                                         wait_for_release = true;
 726                                         old_meter_point = _route->meter_point ();
 727                                 }
 728                         }
 729
 730                         if (ev->button == 1 || ev->button == 2) {
 731
 732                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 733
 734                                         /* Primary+Tertiary-click applies change to all routes */
 735
 736                                         _session.begin_reversible_command (_("meter point change"));
 737                                         Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
 738                                         _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
 739                                         cmd->mark();
 740                                         _session.add_command (cmd);
 741                                         _session.commit_reversible_command ();
 742
 743
 744                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 745
 746                                         /* Primary-click: solo mix group.
 747                                            NOTE: Primary-button2 is MIDI learn.
 748                                         */
 749
 750                                         if (ev->button == 1) {
 751                                                 _session.begin_reversible_command (_("meter point change"));
 752                                                 Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
 753                                                 set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 754                                                 cmd->mark();
 755                                                 _session.add_command (cmd);
 756                                                 _session.commit_reversible_command ();
 757                                         }
 758
 759                                 } else {
 760
 761                                         /* click: change just this route */
 762
 763                                         // XXX no undo yet
 764
 765                                         _route->set_meter_point (next_meter_point (_route->meter_point()), this);
 766                                 }
 767                         }
 768                 }
 769         }
 770
 771         return true;
 772
 773 }
 774
 775 gint
 776 GainMeter::meter_release(GdkEventButton* ev)
 777 {
 778
 779         if(!ignore_toggle){
 780                 if (wait_for_release){
 781                         wait_for_release = false;
 782                         set_meter_point (*(dynamic_cast<Route*>(_io.get())), old_meter_point);
 783                 }
 784         }
 785         return true;
 786 }
 787
 788 void
 789 GainMeter::set_meter_point (Route& route, MeterPoint mp)
 790 {
 791         route.set_meter_point (mp, this);
 792 }
 793
 794 void
 795 GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
 796 {
 797         RouteGroup* mix_group;
 798
 799         if((mix_group = route.mix_group()) != 0){
 800                 mix_group->apply (&Route::set_meter_point, mp, this);
 801         } else {
 802                 route.set_meter_point (mp, this);
 803         }
 804 }
 805
 806 void
 807 GainMeter::meter_point_clicked ()
 808 {
 809         Route* r;
 810
 811         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 812
 813         }
 814 }
 815
 816 gint
 817 GainMeter::start_gain_touch (GdkEventButton* ev)
 818 {
 819         _io->gain_control()->list()->start_touch ();
 820         return FALSE;
 821 }
 822
 823 gint
 824 GainMeter::end_gain_touch (GdkEventButton* ev)
 825 {
 826         _io->gain_control()->list()->stop_touch ();
 827         return FALSE;
 828 }
 829
 830 gint
 831 GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
 832 {
 833         if (ev->type == GDK_BUTTON_RELEASE) {
 834                 return TRUE;
 835         }
 836
 837         switch (ev->button) {
 838                 case 1:
 839                         gain_astate_menu.popup (1, ev->time);
 840                         break;
 841                 default:
 842                         break;
 843         }
 844
 845         return TRUE;
 846 }
 847
 848 gint
 849 GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
 850 {
 851         if (ev->type == GDK_BUTTON_RELEASE) {
 852                 return TRUE;
 853         }
 854
 855         switch (ev->button) {
 856         case 1:
 857                 gain_astyle_menu.popup (1, ev->time);
 858                 break;
 859         default:
 860                 break;
 861         }
 862         return TRUE;
 863 }
 864
 865 string
 866 GainMeter::astate_string (AutoState state)
 867 {
 868         return _astate_string (state, false);
 869 }
 870
 871 string
 872 GainMeter::short_astate_string (AutoState state)
 873 {
 874         return _astate_string (state, true);
 875 }
 876
 877 string
 878 GainMeter::_astate_string (AutoState state, bool shrt)
 879 {
 880         string sstr;
 881
 882         switch (state) {
 883         case Off:
 884                 sstr = (shrt ? "M" : _("M"));
 885                 break;
 886         case Play:
 887                 sstr = (shrt ? "P" : _("P"));
 888                 break;
 889         case Touch:
 890                 sstr = (shrt ? "T" : _("T"));
 891                 break;
 892         case Write:
 893                 sstr = (shrt ? "W" : _("W"));
 894                 break;
 895         }
 896
 897         return sstr;
 898 }
 899
 900 string
 901 GainMeter::astyle_string (AutoStyle style)
 902 {
 903         return _astyle_string (style, false);
 904 }
 905
 906 string
 907 GainMeter::short_astyle_string (AutoStyle style)
 908 {
 909         return _astyle_string (style, true);
 910 }
 911
 912 string
 913 GainMeter::_astyle_string (AutoStyle style, bool shrt)
 914 {
 915         if (style & Trim) {
 916                 return _("Trim");
 917         } else {
 918                 /* XXX it might different in different languages */
 919
 920                 return (shrt ? _("Abs") : _("Abs"));
 921         }
 922 }
 923
 924 void
 925 GainMeter::gain_automation_style_changed ()
 926 {
 927   // Route* _route = dynamic_cast<Route*>(&_io);
 928         switch (_width) {
 929         case Wide:
 930                 gain_automation_style_button.set_label (astyle_string(_io->gain_control()->list()->automation_style()));
 931                 break;
 932         case Narrow:
 933                 gain_automation_style_button.set_label  (short_astyle_string(_io->gain_control()->list()->automation_style()));
 934                 break;
 935         }
 936 }
 937
 938 void
 939 GainMeter::gain_automation_state_changed ()
 940 {
 941         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
 942         //Route* _route = dynamic_cast<Route*>(&_io);
 943
 944         bool x;
 945
 946         switch (_width) {
 947         case Wide:
 948                 gain_automation_state_button.set_label (astate_string(_io->gain_control()->list()->automation_state()));
 949                 break;
 950         case Narrow:
 951                 gain_automation_state_button.set_label (short_astate_string(_io->gain_control()->list()->automation_state()));
 952                 break;
 953         }
 954
 955         x = (_io->gain_control()->list()->automation_state() != Off);
 956
 957         if (gain_automation_state_button.get_active() != x) {
 958                 ignore_toggle = true;
 959                 gain_automation_state_button.set_active (x);
 960                 ignore_toggle = false;
 961         }
 962
 963         update_gain_sensitive ();
 964
 965         /* start watching automation so that things move */
 966
 967         gain_watching.disconnect();
 968
 969         if (x) {
 970                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
 971         }
 972 }
 973
 974 void GainMeter::setup_atv_meter (int len)
 975 {
 976         set_no_show_all();
 977         regular_meter_width = 3;
 978         set_width(Narrow, len);
 979         hide_all();
 980
 981         //cerr << "Config->get_show_track_meters() = " << Config->get_show_track_meters() << endl;//DEBUG
 982
 983         if (Config->get_show_track_meters()) {
 984                 meter_packer.show_all();
 985                 hbox.show();
 986                 show();
 987         }
 988 }
 989
 990 void GainMeter::clear_meters ()
 991 {
 992         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 993                 (*i).meter->clear();
 994         }
 995 }
 996
 997 void GainMeter::color_handler()
 998 {
 999         color_changed = true;
1000         setup_meters();
1001 }