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 <gtkmm2ext/utils.h>
  30 #include <gtkmm2ext/fastmeter.h>
  31 #include <gtkmm2ext/stop_signal.h>
  32 #include <gtkmm2ext/barcontroller.h>
  33 #include <midi++/manager.h>
  34 #include <pbd/fastlog.h>
  35
  36 #include "ardour_ui.h"
  37 #include "gain_meter.h"
  38 #include "utils.h"
  39 #include "logmeter.h"
  40 #include "gui_thread.h"
  41 #include "keyboard.h"
  42 #include "public_editor.h"
  43
  44 #include <ardour/session.h>
  45 #include <ardour/route.h>
  46 #include <ardour/meter.h>
  47
  48 #include "i18n.h"
  49
  50 using namespace ARDOUR;
  51 using namespace PBD;
  52 using namespace Gtkmm2ext;
  53 using namespace Gtk;
  54 using namespace sigc;
  55 using namespace std;
  56
  57 sigc::signal<void> GainMeter::ResetAllPeakDisplays;
  58 sigc::signal<void,RouteGroup*> GainMeter::ResetGroupPeakDisplays;
  59 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider;
  60 Glib::RefPtr<Gdk::Pixbuf> GainMeter::rail;
  61 map<string,Glib::RefPtr<Gdk::Pixmap> > GainMeter::metric_pixmaps;
  62
  63 int
  64 GainMeter::setup_slider_pix ()
  65 {
  66         slider = ::get_icon ("fader_belt");
  67         return 0;
  68 }
  69
  70 GainMeter::GainMeter (boost::shared_ptr<IO> io, Session& s)
  71         : _io (io),
  72           _session (s),
  73           gain_slider (0),
  74           // 0.781787 is the value needed for gain to be set to 0.
  75           gain_adjustment (0.781787, 0.0, 1.0, 0.01, 0.1),
  76           gain_automation_style_button (""),
  77           gain_automation_state_button ("")
  78
  79 {
  80         if (slider == 0) {
  81                 setup_slider_pix ();
  82         }
  83
  84         ignore_toggle = false;
  85         meter_menu = 0;
  86         next_release_selects = false;
  87
  88         gain_slider = manage (new VSliderController (slider,
  89                                                      &gain_adjustment,
  90                                                      _io->gain_control(),
  91                                                      false));
  92
  93         gain_slider->signal_button_press_event().connect (mem_fun(*this, &GainMeter::start_gain_touch));
  94         gain_slider->signal_button_release_event().connect (mem_fun(*this, &GainMeter::end_gain_touch));
  95         gain_slider->set_name ("GainFader");
  96
  97         gain_display.set_name ("MixerStripGainDisplay");
  98         gain_display.set_has_frame (false);
  99         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 100         gain_display.signal_activate().connect (mem_fun (*this, &GainMeter::gain_activated));
 101         gain_display.signal_focus_in_event().connect (mem_fun (*this, &GainMeter::gain_focused), false);
 102         gain_display.signal_focus_out_event().connect (mem_fun (*this, &GainMeter::gain_focused), false);
 103
 104         gain_display_box.set_homogeneous (true);
 105         gain_display_box.set_spacing (2);
 106         gain_display_box.pack_start (gain_display, true, true);
 107
 108         peak_display.set_name ("MixerStripPeakDisplay");
 109 //      peak_display.set_has_frame (false);
 110 //      peak_display.set_editable (false);
 111         set_size_request_to_display_given_text  (peak_display, "-80.g", 2, 6); /* note the descender */
 112         max_peak = minus_infinity();
 113         peak_display.set_label (_("-inf"));
 114         peak_display.unset_flags (Gtk::CAN_FOCUS);
 115
 116         meter_metric_area.set_name ("MeterMetricsStrip");
 117         set_size_request_to_display_given_text (meter_metric_area, "-50", 0, 0);
 118
 119         meter_packer.set_spacing (2);
 120
 121         gain_automation_style_button.set_name ("MixerAutomationModeButton");
 122         gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
 123
 124         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_state_button, _("Fader automation mode"));
 125         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_style_button, _("Fader automation type"));
 126
 127         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 128         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 129
 130         gain_automation_state_button.set_size_request(15, 15);
 131         gain_automation_style_button.set_size_request(15, 15);
 132
 133         HBox* fader_centering_box = manage (new HBox);
 134         fader_centering_box->pack_start (*gain_slider, true, false);
 135
 136         fader_vbox = manage (new Gtk::VBox());
 137         fader_vbox->set_spacing (0);
 138         fader_vbox->pack_start (*fader_centering_box, false, false, 0);
 139
 140         hbox.set_spacing (2);
 141
 142         if (_io->default_type() == ARDOUR::DataType::AUDIO) {
 143                 hbox.pack_start (*fader_vbox, true, true);
 144         }
 145
 146         set_width (Narrow);
 147
 148         Route* r;
 149
 150         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 151
 152                 /*
 153                    if we have a route (ie. we're not the click),
 154                    pack some route-dependent stuff.
 155                 */
 156
 157                 gain_display_box.pack_end (peak_display, true, true);
 158
 159                 hbox.pack_end (meter_packer, true, true);
 160
 161                 using namespace Menu_Helpers;
 162
 163                 gain_astate_menu.items().push_back (MenuElem (_("Manual"),
 164                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Off)));
 165                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 166                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Play)));
 167                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 168                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Write)));
 169                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 170                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Touch)));
 171
 172                 gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 173                 gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 174
 175                 gain_astate_menu.set_name ("ArdourContextMenu");
 176                 gain_astyle_menu.set_name ("ArdourContextMenu");
 177
 178                 gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
 179                 gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
 180
 181                 r->gain_automation_curve().automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
 182                 r->gain_automation_curve().automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
 183                 fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 184
 185                 gain_automation_state_changed ();
 186         }
 187
 188         set_spacing (2);
 189
 190         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 191         pack_start (hbox, Gtk::PACK_SHRINK);
 192
 193         _io->gain_changed.connect (mem_fun(*this, &GainMeter::gain_changed));
 194
 195         meter_metric_area.signal_expose_event().connect (mem_fun(*this, &GainMeter::meter_metrics_expose));
 196         gain_adjustment.signal_value_changed().connect (mem_fun(*this, &GainMeter::gain_adjusted));
 197         peak_display.signal_button_release_event().connect (mem_fun(*this, &GainMeter::peak_button_release), false);
 198         gain_display.signal_key_press_event().connect (mem_fun(*this, &GainMeter::gain_key_press), false);
 199
 200         Config->ParameterChanged.connect (mem_fun (*this, &GainMeter::parameter_changed));
 201
 202         gain_changed (0);
 203         show_gain ();
 204
 205         update_gain_sensitive ();
 206
 207         ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
 208         ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
 209 }
 210
 211 void
 212 GainMeter::set_width (Width w)
 213 {
 214         switch (w) {
 215         case Wide:
 216                 peak_display.show();
 217                 break;
 218         case Narrow:
 219                 peak_display.hide();
 220                 break;
 221         }
 222
 223         _width = w;
 224         setup_meters ();
 225 }
 226
 227 Glib::RefPtr<Gdk::Pixmap>
 228 GainMeter::render_metrics (Gtk::Widget& w)
 229 {
 230         Glib::RefPtr<Gdk::Window> win (w.get_window());
 231         Glib::RefPtr<Gdk::GC> fg_gc (w.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 232         Glib::RefPtr<Gdk::GC> bg_gc (w.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 233         gint width, height;
 234         int  db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
 235         char buf[32];
 236
 237         win->get_size (width, height);
 238
 239         Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (win, width, height);
 240
 241         metric_pixmaps[w.get_name()] = pixmap;
 242
 243         pixmap->draw_rectangle (bg_gc, true, 0, 0, width, height);
 244
 245         Glib::RefPtr<Pango::Layout> layout = w.create_pango_layout("");
 246
 247         for (uint32_t i = 0; i < sizeof (db_points)/sizeof (db_points[0]); ++i) {
 248
 249                 float fraction = log_meter (db_points[i]);
 250                 gint pos = height - (gint) floor (height * fraction);
 251
 252                 snprintf (buf, sizeof (buf), "%d", abs (db_points[i]));
 253
 254                 layout->set_text (buf);
 255
 256                 /* we want logical extents, not ink extents here */
 257
 258                 int width, height;
 259                 layout->get_pixel_size (width, height);
 260
 261                 pixmap->draw_line (fg_gc, 0, pos, 4, pos);
 262                 pixmap->draw_layout (fg_gc, 6, pos - (height/2), layout);
 263         }
 264
 265         return pixmap;
 266 }
 267
 268 gint
 269 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 270 {
 271         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 272         Glib::RefPtr<Gdk::GC> fg_gc (meter_metric_area.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 273         Glib::RefPtr<Gdk::GC> bg_gc (meter_metric_area.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 274         GdkRectangle base_rect;
 275         GdkRectangle draw_rect;
 276         gint width, height;
 277
 278         win->get_size (width, height);
 279
 280         base_rect.width = width;
 281         base_rect.height = height;
 282         base_rect.x = 0;
 283         base_rect.y = 0;
 284
 285         Glib::RefPtr<Gdk::Pixmap> pixmap;
 286         std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
 287
 288         if (i == metric_pixmaps.end()) {
 289                 pixmap = render_metrics (meter_metric_area);
 290         } else {
 291                 pixmap = i->second;
 292         }
 293
 294         gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
 295         win->draw_rectangle (bg_gc, true, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 296         win->draw_drawable (bg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 297
 298         return true;
 299 }
 300
 301 GainMeter::~GainMeter ()
 302 {
 303         if (meter_menu) {
 304                 delete meter_menu;
 305         }
 306
 307         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
 308                 if ((*i).meter) {
 309                         delete (*i).meter;
 310                 }
 311         }
 312 }
 313
 314 void
 315 GainMeter::update_meters ()
 316 {
 317         vector<MeterInfo>::iterator i;
 318         uint32_t n;
 319         float peak, mpeak;
 320         char buf[32];
 321
 322         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 323                 if ((*i).packed) {
 324                         peak = _io->peak_meter().peak_power (n);
 325
 326                         (*i).meter->set (log_meter (peak));
 327
 328                         mpeak = _io->peak_meter().max_peak_power(n);
 329
 330                         if (mpeak > max_peak) {
 331                                 max_peak = mpeak;
 332                                 /* set peak display */
 333                                 if (max_peak <= -200.0f) {
 334                                         peak_display.set_label (_("-inf"));
 335                                 } else {
 336                                         snprintf (buf, sizeof(buf), "%.1f", max_peak);
 337                                         peak_display.set_label (buf);
 338                                 }
 339
 340                                 if (max_peak >= 0.0f) {
 341                                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 342                                 }
 343                         }
 344                 }
 345         }
 346 }
 347
 348 void
 349 GainMeter::parameter_changed(const char* parameter_name)
 350 {
 351 #define PARAM_IS(x) (!strcmp (parameter_name, (x)))
 352
 353         ENSURE_GUI_THREAD (bind (mem_fun(*this, &GainMeter::parameter_changed), parameter_name));
 354
 355         if (PARAM_IS ("meter-hold")) {
 356
 357                 vector<MeterInfo>::iterator i;
 358                 uint32_t n;
 359
 360                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 361
 362                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 363                 }
 364         }
 365
 366 #undef PARAM_IS
 367 }
 368
 369 void
 370 GainMeter::hide_all_meters ()
 371 {
 372         bool remove_metric_area = false;
 373
 374         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 375                 if ((*i).packed) {
 376                         remove_metric_area = true;
 377                         meter_packer.remove (*((*i).meter));
 378                         (*i).packed = false;
 379                 }
 380         }
 381
 382         if (remove_metric_area) {
 383                 if (meter_metric_area.get_parent()) {
 384                         meter_packer.remove (meter_metric_area);
 385                 }
 386         }
 387 }
 388
 389 void
 390 GainMeter::setup_meters ()
 391 {
 392         uint32_t nmeters = _io->n_outputs().n_audio();
 393         guint16 width;
 394
 395         hide_all_meters ();
 396
 397         Route* r;
 398
 399         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 400
 401                 switch (r->meter_point()) {
 402                 case MeterPreFader:
 403                 case MeterInput:
 404                         nmeters = r->n_inputs().n_audio();
 405                         break;
 406                 case MeterPostFader:
 407                         nmeters = r->n_outputs().n_audio();
 408                         break;
 409                 }
 410
 411         } else {
 412
 413                 nmeters = _io->n_outputs().n_audio();
 414
 415         }
 416
 417         if (nmeters == 0) {
 418                 return;
 419         }
 420
 421         if (nmeters <= 2) {
 422                 width = regular_meter_width;
 423         } else {
 424                 width = thin_meter_width;
 425         }
 426
 427         while (meters.size() < nmeters) {
 428                 meters.push_back (MeterInfo());
 429         }
 430
 431         /* pack them backwards */
 432
 433         if (_width == Wide) {
 434                 meter_packer.pack_end (meter_metric_area, false, false);
 435                 meter_metric_area.show_all ();
 436         }
 437
 438         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 439                 if (meters[n].width != width) {
 440                         delete meters[n].meter;
 441                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, FastMeter::Vertical);
 442                         meters[n].width = width;
 443
 444                         meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
 445                         meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
 446                 }
 447
 448                 meter_packer.pack_end (*meters[n].meter, false, false);
 449                 meters[n].meter->show_all ();
 450                 meters[n].packed = true;
 451         }
 452 }
 453
 454 int
 455 GainMeter::get_gm_width ()
 456 {
 457         Gtk::Requisition sz = hbox.size_request ();
 458         return sz.width;
 459 }
 460
 461 bool
 462 GainMeter::gain_key_press (GdkEventKey* ev)
 463 {
 464         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 465                 /* drop through to normal handling */
 466                 return false;
 467         }
 468         /* illegal key for gain entry */
 469         return true;
 470 }
 471
 472 bool
 473 GainMeter::peak_button_release (GdkEventButton* ev)
 474 {
 475         /* reset peak label */
 476
 477         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control|Keyboard::Shift)) {
 478                 ResetAllPeakDisplays ();
 479         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 480                 Route* r;
 481                 if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 482                         ResetGroupPeakDisplays (r->mix_group());
 483                 }
 484         } else {
 485                 reset_peak_display ();
 486         }
 487
 488         return true;
 489 }
 490
 491 void
 492 GainMeter::reset_peak_display ()
 493 {
 494         Route * r;
 495         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 496                 r->peak_meter().reset_max();
 497         }
 498
 499         max_peak = -INFINITY;
 500         peak_display.set_label (_("-Inf"));
 501         peak_display.set_name ("MixerStripPeakDisplay");
 502 }
 503
 504 void
 505 GainMeter::reset_group_peak_display (RouteGroup* group)
 506 {
 507         Route* r;
 508         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 509                 if (group == r->mix_group()) {
 510                         reset_peak_display ();
 511                 }
 512         }
 513 }
 514
 515 gint
 516 GainMeter::meter_button_release (GdkEventButton* ev, uint32_t which)
 517 {
 518         switch (ev->button) {
 519         case 1:
 520                 meters[which].meter->clear();
 521                 max_peak = minus_infinity();
 522                 peak_display.set_label (_("-inf"));
 523                 peak_display.set_name ("MixerStripPeakDisplay");
 524                 break;
 525
 526         case 3:
 527                 // popup_meter_menu (ev);
 528                 break;
 529         };
 530
 531         return TRUE;
 532 }
 533
 534 void
 535 GainMeter::popup_meter_menu (GdkEventButton *ev)
 536 {
 537         using namespace Menu_Helpers;
 538
 539         if (meter_menu == 0) {
 540                 meter_menu = new Gtk::Menu;
 541                 MenuList& items = meter_menu->items();
 542
 543                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 544                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 545                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 546                 items.push_back (SeparatorElem());
 547                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 548                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 549                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 550         }
 551
 552         meter_menu->popup (1, ev->time);
 553 }
 554
 555 bool
 556 GainMeter::gain_focused (GdkEventFocus* ev)
 557 {
 558         if (ev->in) {
 559                 gain_display.select_region (0, -1);
 560         } else {
 561                 gain_display.select_region (0, 0);
 562         }
 563         return false;
 564 }
 565
 566 void
 567 GainMeter::gain_activated ()
 568 {
 569         float f;
 570
 571         if (sscanf (gain_display.get_text().c_str(), "%f", &f) == 1) {
 572
 573                 /* clamp to displayable values */
 574
 575                 f = min (f, 6.0f);
 576
 577                 _io->set_gain (dB_to_coefficient(f), this);
 578
 579                 if (gain_display.has_focus()) {
 580                         PublicEditor::instance().reset_focus();
 581                 }
 582         }
 583 }
 584
 585 void
 586 GainMeter::show_gain ()
 587 {
 588         char buf[32];
 589
 590         float v = gain_adjustment.get_value();
 591
 592         if (v == 0.0) {
 593                 strcpy (buf, _("-inf"));
 594         } else {
 595                 snprintf (buf, 32, "%.1f", coefficient_to_dB (slider_position_to_gain (v)));
 596         }
 597
 598         gain_display.set_text (buf);
 599 }
 600
 601 void
 602 GainMeter::gain_adjusted ()
 603 {
 604         if (!ignore_toggle) {
 605                 _io->set_gain (slider_position_to_gain (gain_adjustment.get_value()), this);
 606         }
 607         show_gain ();
 608 }
 609
 610 void
 611 GainMeter::effective_gain_display ()
 612 {
 613         gfloat value = gain_to_slider_position (_io->effective_gain());
 614
 615         if (gain_adjustment.get_value() != value) {
 616                 ignore_toggle = true;
 617                 gain_adjustment.set_value (value);
 618                 ignore_toggle = false;
 619         }
 620 }
 621
 622 void
 623 GainMeter::gain_changed (void *src)
 624 {
 625         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &GainMeter::effective_gain_display));
 626 }
 627
 628 void
 629 GainMeter::set_meter_strip_name (const char * name)
 630 {
 631         meter_metric_area.set_name (name);
 632 }
 633
 634 void
 635 GainMeter::set_fader_name (const char * name)
 636 {
 637         gain_slider->set_name (name);
 638 }
 639
 640 void
 641 GainMeter::update_gain_sensitive ()
 642 {
 643         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io->gain_automation_state() & Play));
 644 }
 645
 646
 647 static MeterPoint
 648 next_meter_point (MeterPoint mp)
 649 {
 650         switch (mp) {
 651         case MeterInput:
 652                 return MeterPreFader;
 653                 break;
 654
 655         case MeterPreFader:
 656                 return MeterPostFader;
 657                 break;
 658
 659         case MeterPostFader:
 660                 return MeterInput;
 661                 break;
 662         }
 663         /*NOTREACHED*/
 664         return MeterInput;
 665 }
 666
 667 gint
 668 GainMeter::meter_press(GdkEventButton* ev)
 669 {
 670         Route* _route;
 671
 672         wait_for_release = false;
 673
 674         if ((_route = dynamic_cast<Route*>(_io.get())) == 0) {
 675                 return FALSE;
 676         }
 677
 678         if (!ignore_toggle) {
 679
 680                 if (Keyboard::is_context_menu_event (ev)) {
 681
 682                         // no menu at this time.
 683
 684                 } else {
 685
 686                         if (ev->button == 2) {
 687
 688                                 // ctrl-button2 click is the midi binding click
 689                                 // button2-click is "momentary"
 690
 691                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control))) {
 692                                         wait_for_release = true;
 693                                         old_meter_point = _route->meter_point ();
 694                                 }
 695                         }
 696
 697                         if (ev->button == 1 || ev->button == 2) {
 698
 699                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Shift))) {
 700
 701                                         /* ctrl-shift-click applies change to all routes */
 702
 703                                         _session.begin_reversible_command (_("meter point change"));
 704                                         Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
 705                                         _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
 706                                         cmd->mark();
 707                                         _session.add_command (cmd);
 708                                         _session.commit_reversible_command ();
 709
 710
 711                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 712
 713                                         /* ctrl-click: solo mix group.
 714                                            ctrl-button2 is MIDI learn.
 715                                         */
 716
 717                                         if (ev->button == 1) {
 718                                                 _session.begin_reversible_command (_("meter point change"));
 719                                                 Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
 720                                                 set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 721                                                 cmd->mark();
 722                                                 _session.add_command (cmd);
 723                                                 _session.commit_reversible_command ();
 724                                         }
 725
 726                                 } else {
 727
 728                                         /* click: change just this route */
 729
 730                                         // XXX no undo yet
 731
 732                                         _route->set_meter_point (next_meter_point (_route->meter_point()), this);
 733                                 }
 734                         }
 735                 }
 736         }
 737
 738         return true;
 739
 740 }
 741
 742 gint
 743 GainMeter::meter_release(GdkEventButton* ev)
 744 {
 745
 746         if(!ignore_toggle){
 747                 if (wait_for_release){
 748                         wait_for_release = false;
 749                         set_meter_point (*(dynamic_cast<Route*>(_io.get())), old_meter_point);
 750                 }
 751         }
 752         return true;
 753 }
 754
 755 void
 756 GainMeter::set_meter_point (Route& route, MeterPoint mp)
 757 {
 758         route.set_meter_point (mp, this);
 759 }
 760
 761 void
 762 GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
 763 {
 764         RouteGroup* mix_group;
 765
 766         if((mix_group = route.mix_group()) != 0){
 767                 mix_group->apply (&Route::set_meter_point, mp, this);
 768         } else {
 769                 route.set_meter_point (mp, this);
 770         }
 771 }
 772
 773 void
 774 GainMeter::meter_point_clicked ()
 775 {
 776         Route* r;
 777
 778         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 779
 780         }
 781 }
 782
 783 gint
 784 GainMeter::start_gain_touch (GdkEventButton* ev)
 785 {
 786         _io->start_gain_touch ();
 787         return FALSE;
 788 }
 789
 790 gint
 791 GainMeter::end_gain_touch (GdkEventButton* ev)
 792 {
 793         _io->end_gain_touch ();
 794         return FALSE;
 795 }
 796
 797 gint
 798 GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
 799 {
 800         if (ev->type == GDK_BUTTON_RELEASE) {
 801                 return TRUE;
 802         }
 803
 804         switch (ev->button) {
 805                 case 1:
 806                         gain_astate_menu.popup (1, ev->time);
 807                         break;
 808                 default:
 809                         break;
 810         }
 811
 812         return TRUE;
 813 }
 814
 815 gint
 816 GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
 817 {
 818         if (ev->type == GDK_BUTTON_RELEASE) {
 819                 return TRUE;
 820         }
 821
 822         switch (ev->button) {
 823         case 1:
 824                 gain_astyle_menu.popup (1, ev->time);
 825                 break;
 826         default:
 827                 break;
 828         }
 829         return TRUE;
 830 }
 831
 832 string
 833 GainMeter::astate_string (AutoState state)
 834 {
 835         return _astate_string (state, false);
 836 }
 837
 838 string
 839 GainMeter::short_astate_string (AutoState state)
 840 {
 841         return _astate_string (state, true);
 842 }
 843
 844 string
 845 GainMeter::_astate_string (AutoState state, bool shrt)
 846 {
 847         string sstr;
 848
 849         switch (state) {
 850         case Off:
 851                 sstr = (shrt ? "M" : _("M"));
 852                 break;
 853         case Play:
 854                 sstr = (shrt ? "P" : _("P"));
 855                 break;
 856         case Touch:
 857                 sstr = (shrt ? "T" : _("T"));
 858                 break;
 859         case Write:
 860                 sstr = (shrt ? "W" : _("W"));
 861                 break;
 862         }
 863
 864         return sstr;
 865 }
 866
 867 string
 868 GainMeter::astyle_string (AutoStyle style)
 869 {
 870         return _astyle_string (style, false);
 871 }
 872
 873 string
 874 GainMeter::short_astyle_string (AutoStyle style)
 875 {
 876         return _astyle_string (style, true);
 877 }
 878
 879 string
 880 GainMeter::_astyle_string (AutoStyle style, bool shrt)
 881 {
 882         if (style & Trim) {
 883                 return _("Trim");
 884         } else {
 885                 /* XXX it might different in different languages */
 886
 887                 return (shrt ? _("Abs") : _("Abs"));
 888         }
 889 }
 890
 891 void
 892 GainMeter::gain_automation_style_changed ()
 893 {
 894   // Route* _route = dynamic_cast<Route*>(&_io);
 895         switch (_width) {
 896         case Wide:
 897                 gain_automation_style_button.set_label (astyle_string(_io->gain_automation_curve().automation_style()));
 898                 break;
 899         case Narrow:
 900                 gain_automation_style_button.set_label  (short_astyle_string(_io->gain_automation_curve().automation_style()));
 901                 break;
 902         }
 903 }
 904
 905 void
 906 GainMeter::gain_automation_state_changed ()
 907 {
 908         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
 909         //Route* _route = dynamic_cast<Route*>(&_io);
 910
 911         bool x;
 912
 913         switch (_width) {
 914         case Wide:
 915                 gain_automation_state_button.set_label (astate_string(_io->gain_automation_curve().automation_state()));
 916                 break;
 917         case Narrow:
 918                 gain_automation_state_button.set_label (short_astate_string(_io->gain_automation_curve().automation_state()));
 919                 break;
 920         }
 921
 922         x = (_io->gain_automation_state() != Off);
 923
 924         if (gain_automation_state_button.get_active() != x) {
 925                 ignore_toggle = true;
 926                 gain_automation_state_button.set_active (x);
 927                 ignore_toggle = false;
 928         }
 929
 930         update_gain_sensitive ();
 931
 932         /* start watching automation so that things move */
 933
 934         gain_watching.disconnect();
 935
 936         if (x) {
 937                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
 938         }
 939 }