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