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   $Id$
  19 */
  20
  21 #include <limits.h>
  22
  23 #include <ardour/io.h>
  24 #include <ardour/route.h>
  25 #include <ardour/route_group.h>
  26 #include <ardour/session.h>
  27 #include <ardour/session_route.h>
  28 #include <ardour/dB.h>
  29
  30 #include <gtkmm2ext/utils.h>
  31 #include <gtkmm2ext/fastmeter.h>
  32 #include <gtkmm2ext/stop_signal.h>
  33 #include <gtkmm2ext/barcontroller.h>
  34 #include <midi++/manager.h>
  35 #include <pbd/fastlog.h>
  36
  37 #include "ardour_ui.h"
  38 #include "gain_meter.h"
  39 #include "utils.h"
  40 #include "logmeter.h"
  41 #include "gui_thread.h"
  42 #include "keyboard.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         string path = ARDOUR::find_data_file("vslider02_slider.xpm", "pixmaps");
  67         if (path.empty()) {
  68                 error << _("cannot find images for fader slider") << endmsg;
  69                 return -1;
  70         }
  71         slider = Gdk::Pixbuf::create_from_file (path);
  72
  73         path = ARDOUR::find_data_file("vslider02_rail.xpm", "pixmaps");
  74         if (path.empty()) {
  75                 error << _("cannot find images for fader rail") << endmsg;
  76                 return -1;
  77         }
  78         rail = Gdk::Pixbuf::create_from_file (path);
  79
  80         return 0;
  81 }
  82
  83 GainMeter::GainMeter (boost::shared_ptr<IO> io, Session& s)
  84         : _io (io),
  85           _session (s),
  86           gain_slider (0),
  87           // 0.781787 is the value needed for gain to be set to 0.
  88           gain_adjustment (0.781787, 0.0, 1.0, 0.01, 0.1),
  89           gain_display (&gain_adjustment, "MixerStripGainDisplay"),
  90           gain_automation_style_button (""),
  91           gain_automation_state_button ("")
  92
  93 {
  94         if (slider == 0) {
  95                 setup_slider_pix ();
  96         }
  97
  98         ignore_toggle = false;
  99         meter_menu = 0;
 100
 101         gain_slider = manage (new VSliderController (slider, rail,
 102                                                      &gain_adjustment,
 103                                                      _io->gain_control(),
 104                                                      false));
 105
 106         gain_slider->signal_button_press_event().connect (mem_fun(*this, &GainMeter::start_gain_touch));
 107         gain_slider->signal_button_release_event().connect (mem_fun(*this, &GainMeter::end_gain_touch));
 108         gain_slider->set_name ("MixerGainMeter");
 109
 110         gain_display.set_print_func (_gain_printer, this);
 111
 112         gain_display_box.set_spacing (2);
 113         set_size_request_to_display_given_text (gain_display_frame, "-86.g", 2, 6); /* note the descender */
 114         gain_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 115         gain_display_frame.set_name ("BaseFrame");
 116         gain_display_frame.add (gain_display);
 117         gain_display_box.pack_start (gain_display_frame,  Gtk::PACK_SHRINK);
 118
 119         peak_display.set_name ("MixerStripPeakDisplay");
 120         peak_display.add (peak_display_label);
 121         set_size_request_to_display_given_text (peak_display_frame, "-86.g", 2, 6); /* note the descender */
 122         peak_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 123         peak_display_frame.set_name ("BaseFrame");
 124         peak_display_frame.add (peak_display);
 125         max_peak = minus_infinity();
 126         peak_display_label.set_text (_("-inf"));
 127
 128         meter_metric_area.set_size_request (25, -1);
 129         meter_metric_area.set_name ("MeterMetricsStrip");
 130
 131         meter_packer.set_spacing (2);
 132
 133         gain_automation_style_button.set_name ("MixerAutomationModeButton");
 134         gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
 135
 136         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_state_button, _("Fader automation mode"));
 137         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_style_button, _("Fader automation type"));
 138
 139         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 140         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 141
 142         gain_automation_state_button.set_size_request(15, 15);
 143         gain_automation_style_button.set_size_request(15, 15);
 144
 145
 146         fader_vbox = manage (new Gtk::VBox());
 147         fader_vbox->set_spacing (0);
 148         fader_vbox->pack_start (*gain_slider, false, false, 0);
 149
 150         hbox.set_spacing (0);
 151
 152         if (_io->default_type() == ARDOUR::DataType::AUDIO)
 153                 hbox.pack_start (*fader_vbox, false, false, 2);
 154
 155         set_width(Narrow);
 156
 157         Route* r;
 158
 159         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 160                 /*
 161                    if we don't have a route (if we're the click),
 162                    pack some route-dependent stuff.
 163                 */
 164
 165                 gain_display_box.pack_end (peak_display_frame,  Gtk::PACK_SHRINK);
 166
 167                 hbox.pack_start (meter_packer, true, false);
 168
 169                 using namespace Menu_Helpers;
 170
 171                 gain_astate_menu.items().push_back (MenuElem (_("Off"),
 172                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Off)));
 173                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 174                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Play)));
 175                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 176                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Write)));
 177                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 178                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Touch)));
 179
 180                 gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 181                 gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 182
 183                 gain_astate_menu.set_name ("ArdourContextMenu");
 184                 gain_astyle_menu.set_name ("ArdourContextMenu");
 185
 186                 gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
 187                 gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
 188
 189                 r->gain_automation_curve().automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
 190                 r->gain_automation_curve().automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
 191                 fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 192
 193                 gain_automation_state_changed ();
 194         }
 195
 196
 197         set_spacing (4);
 198
 199         pack_start (gain_display_box,  Gtk::PACK_SHRINK);
 200         pack_start (hbox,  Gtk::PACK_SHRINK);
 201
 202         _io->gain_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));
 207
 208         Config->ParameterChanged.connect (mem_fun (*this, &GainMeter::parameter_changed));
 209
 210         gain_changed (0);
 211         update_gain_sensitive ();
 212
 213         ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
 214         ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
 215 }
 216
 217 void
 218 GainMeter::set_width (Width w)
 219 {
 220         switch (w) {
 221         case Wide:
 222                 peak_display_frame.show_all();
 223                 break;
 224         case Narrow:
 225                 peak_display_frame.hide_all();
 226                 break;
 227         }
 228
 229         _width = w;
 230         setup_meters ();
 231 }
 232
 233 Glib::RefPtr<Gdk::Pixmap>
 234 GainMeter::render_metrics (Gtk::Widget& w)
 235 {
 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 x, y, width, height, depth;
 240         int  db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
 241         char buf[32];
 242
 243         win->get_geometry (x, y, width, height, depth);
 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         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 278         Glib::RefPtr<Gdk::GC> fg_gc (meter_metric_area.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 279         Glib::RefPtr<Gdk::GC> bg_gc (meter_metric_area.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 280         GdkRectangle base_rect;
 281         GdkRectangle draw_rect;
 282         gint x, y, width, height, depth;
 283
 284         win->get_geometry (x, y, width, height, depth);
 285
 286         base_rect.width = width;
 287         base_rect.height = height;
 288         base_rect.x = 0;
 289         base_rect.y = 0;
 290
 291         Glib::RefPtr<Gdk::Pixmap> pixmap;
 292         std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
 293
 294         if (i == metric_pixmaps.end()) {
 295                 pixmap = render_metrics (meter_metric_area);
 296         } else {
 297                 pixmap = i->second;
 298         }
 299
 300         gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
 301         win->draw_rectangle (bg_gc, true, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 302         win->draw_drawable (bg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 303
 304         return true;
 305 }
 306
 307 GainMeter::~GainMeter ()
 308 {
 309         if (meter_menu) {
 310                 delete meter_menu;
 311         }
 312
 313         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
 314                 if ((*i).meter) {
 315                         delete (*i).meter;
 316                 }
 317         }
 318 }
 319
 320 void
 321 GainMeter::update_meters ()
 322 {
 323         vector<MeterInfo>::iterator i;
 324         uint32_t n;
 325         float peak;
 326         char buf[32];
 327
 328         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 329                 if ((*i).packed) {
 330                         peak = _io->peak_meter().peak_power (n);
 331
 332                         (*i).meter->set (log_meter (peak), peak);
 333
 334                         if (peak > max_peak) {
 335                 max_peak = peak;
 336                 /* set peak display */
 337                                 if (max_peak <= -200.0f) {
 338                                         peak_display_label.set_text (_("-inf"));
 339                                 } else {
 340                                         snprintf (buf, sizeof(buf), "%.1f", max_peak);
 341                                         peak_display_label.set_text (buf);
 342                                 }
 343
 344                                 if (max_peak >= 0.0f) {
 345                                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 346                                 }
 347                         }
 348                 }
 349         }
 350 }
 351
 352 void
 353 GainMeter::parameter_changed(const char* parameter_name)
 354 {
 355 #define PARAM_IS(x) (!strcmp (parameter_name, (x)))
 356
 357         ENSURE_GUI_THREAD (bind (mem_fun(*this, &GainMeter::parameter_changed), parameter_name));
 358
 359         if (PARAM_IS ("meter-hold")) {
 360
 361                 vector<MeterInfo>::iterator i;
 362                 uint32_t n;
 363
 364                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 365
 366                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 367                 }
 368         }
 369
 370 #undef PARAM_IS
 371 }
 372
 373 void
 374 GainMeter::hide_all_meters ()
 375 {
 376         bool remove_metric_area = false;
 377
 378         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 379                 if ((*i).packed) {
 380                         remove_metric_area = true;
 381                         meter_packer.remove (*((*i).meter));
 382                         (*i).packed = false;
 383                 }
 384         }
 385
 386         if (remove_metric_area) {
 387                 if (meter_metric_area.get_parent()) {
 388                         meter_packer.remove (meter_metric_area);
 389                 }
 390         }
 391 }
 392
 393 void
 394 GainMeter::setup_meters ()
 395 {
 396         uint32_t nmeters = _io->n_outputs().get(DataType::AUDIO);
 397         guint16 width;
 398
 399         hide_all_meters ();
 400
 401         Route* r;
 402
 403         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 404
 405                 switch (r->meter_point()) {
 406                 case MeterPreFader:
 407                 case MeterInput:
 408                         nmeters = r->n_inputs().get(DataType::AUDIO);
 409                         break;
 410                 case MeterPostFader:
 411                         nmeters = r->n_outputs().get(DataType::AUDIO);
 412                         break;
 413                 }
 414
 415         } else {
 416
 417                 nmeters = _io->n_outputs().get(DataType::AUDIO);
 418
 419         }
 420
 421         if (nmeters == 0) {
 422                 return;
 423         }
 424
 425         if (nmeters <= 2) {
 426                 width = regular_meter_width;
 427         } else {
 428                 width = thin_meter_width;
 429         }
 430
 431         while (meters.size() < nmeters) {
 432                 meters.push_back (MeterInfo());
 433         }
 434
 435         for (uint32_t n = 0; n < nmeters; ++n) {
 436                 if (meters[n].width != width) {
 437                         delete meters[n].meter;
 438                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, FastMeter::Vertical);
 439                         meters[n].width = width;
 440
 441                         meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
 442                         meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
 443                 }
 444
 445                 meter_packer.pack_start (*meters[n].meter, Gtk::PACK_SHRINK);
 446                 meters[n].meter->show_all ();
 447                 meters[n].packed = true;
 448         }
 449
 450         if (_width == Wide) {
 451                 meter_packer.pack_start (meter_metric_area, Gtk::PACK_SHRINK);
 452                 meter_metric_area.show_all ();
 453         }
 454 }
 455
 456 gint
 457 GainMeter::peak_button_release (GdkEventButton* ev)
 458 {
 459         /* reset peak label */
 460
 461         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control|Keyboard::Shift)) {
 462                 ResetAllPeakDisplays ();
 463         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 464                 Route* r;
 465                 if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 466                         ResetGroupPeakDisplays (r->mix_group());
 467                 }
 468         } else {
 469                 reset_peak_display ();
 470         }
 471         return TRUE;
 472 }
 473
 474 void
 475 GainMeter::reset_peak_display ()
 476 {
 477         max_peak = minus_infinity();
 478         peak_display_label.set_text (_("-Inf"));
 479         peak_display.set_name ("MixerStripPeakDisplay");
 480 }
 481
 482 void
 483 GainMeter::reset_group_peak_display (RouteGroup* group)
 484 {
 485         Route* r;
 486         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 487                 if (group == r->mix_group()) {
 488                         reset_peak_display ();
 489                 }
 490         }
 491 }
 492
 493 gint
 494 GainMeter::meter_button_release (GdkEventButton* ev, uint32_t which)
 495 {
 496         switch (ev->button) {
 497         case 1:
 498                 meters[which].meter->clear();
 499                 max_peak = minus_infinity();
 500                 peak_display_label.set_text (_("-inf"));
 501                 peak_display.set_name ("MixerStripPeakDisplay");
 502                 break;
 503
 504         case 3:
 505                 // popup_meter_menu (ev);
 506                 break;
 507         };
 508
 509         return TRUE;
 510 }
 511
 512 void
 513 GainMeter::popup_meter_menu (GdkEventButton *ev)
 514 {
 515         using namespace Menu_Helpers;
 516
 517         if (meter_menu == 0) {
 518                 meter_menu = new Gtk::Menu;
 519                 MenuList& items = meter_menu->items();
 520
 521                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 522                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 523                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 524                 items.push_back (SeparatorElem());
 525                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 526                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 527                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 528         }
 529
 530         meter_menu->popup (1, ev->time);
 531 }
 532
 533 void
 534 GainMeter::_gain_printer (char buf[32], Gtk::Adjustment& adj, void *arg)
 535 {
 536         static_cast<GainMeter *>(arg)->gain_printer (buf, adj);
 537 }
 538
 539 void
 540 GainMeter::gain_printer (char buf[32], Gtk::Adjustment& adj)
 541 {
 542         float v = adj.get_value();
 543
 544         if (v == 0.0) {
 545                 strcpy (buf, _("-inf"));
 546         } else {
 547                 snprintf (buf, 32, "%.1f", coefficient_to_dB (slider_position_to_gain (v)));
 548         }
 549 }
 550
 551 void
 552 GainMeter::gain_adjusted ()
 553 {
 554         if (!ignore_toggle) {
 555                 _io->set_gain (slider_position_to_gain (gain_adjustment.get_value()), this);
 556         }
 557 }
 558
 559 void
 560 GainMeter::effective_gain_display ()
 561 {
 562         gfloat value = gain_to_slider_position (_io->effective_gain());
 563
 564         if (gain_adjustment.get_value() != value) {
 565                 ignore_toggle = true;
 566                 gain_adjustment.set_value (value);
 567                 ignore_toggle = false;
 568         }
 569 }
 570
 571 void
 572 GainMeter::gain_changed (void *src)
 573 {
 574         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &GainMeter::effective_gain_display));
 575 }
 576
 577 void
 578 GainMeter::set_meter_strip_name (const char * name)
 579 {
 580         meter_metric_area.set_name (name);
 581 }
 582
 583 void
 584 GainMeter::set_fader_name (const char * name)
 585 {
 586         gain_slider->set_name (name);
 587 }
 588
 589 void
 590 GainMeter::update_gain_sensitive ()
 591 {
 592         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io->gain_automation_state() & Play));
 593 }
 594
 595
 596 static MeterPoint
 597 next_meter_point (MeterPoint mp)
 598 {
 599         switch (mp) {
 600         case MeterInput:
 601                 return MeterPreFader;
 602                 break;
 603
 604         case MeterPreFader:
 605                 return MeterPostFader;
 606                 break;
 607
 608         case MeterPostFader:
 609                 return MeterInput;
 610                 break;
 611         }
 612         /*NOTREACHED*/
 613         return MeterInput;
 614 }
 615
 616 gint
 617 GainMeter::meter_press(GdkEventButton* ev)
 618 {
 619         Route* _route;
 620
 621         wait_for_release = false;
 622
 623         if ((_route = dynamic_cast<Route*>(_io.get())) == 0) {
 624                 return FALSE;
 625         }
 626
 627         if (!ignore_toggle) {
 628
 629                 if (Keyboard::is_context_menu_event (ev)) {
 630
 631                         // no menu at this time.
 632
 633                 } else {
 634
 635                         if (ev->button == 2) {
 636
 637                                 // ctrl-button2 click is the midi binding click
 638                                 // button2-click is "momentary"
 639
 640                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control))) {
 641                                         wait_for_release = true;
 642                                         old_meter_point = _route->meter_point ();
 643                                 }
 644                         }
 645
 646                         if (ev->button == 1 || ev->button == 2) {
 647
 648                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Shift))) {
 649
 650                                         /* ctrl-shift-click applies change to all routes */
 651
 652                                         _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
 653
 654                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 655
 656                                         /* ctrl-click: solo mix group.
 657                                            ctrl-button2 is MIDI learn.
 658                                         */
 659
 660                                         if (ev->button == 1) {
 661                                                 set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 662                                         }
 663
 664                                 } else {
 665
 666                                         /* click: solo this route */
 667
 668                                         _route->set_meter_point (next_meter_point (_route->meter_point()), this);
 669                                 }
 670                         }
 671                 }
 672         }
 673
 674         return true;
 675
 676 }
 677
 678 gint
 679 GainMeter::meter_release(GdkEventButton* ev)
 680 {
 681
 682         if(!ignore_toggle){
 683                 if (wait_for_release){
 684                         wait_for_release = false;
 685                         set_meter_point (*(dynamic_cast<Route*>(_io.get())), old_meter_point);
 686                 }
 687         }
 688         return true;
 689 }
 690
 691 void
 692 GainMeter::set_meter_point (Route& route, MeterPoint mp)
 693 {
 694         route.set_meter_point (mp, this);
 695 }
 696
 697 void
 698 GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
 699 {
 700         RouteGroup* mix_group;
 701
 702         if((mix_group = route.mix_group()) != 0){
 703                 mix_group->apply (&Route::set_meter_point, mp, this);
 704         } else {
 705                 route.set_meter_point (mp, this);
 706         }
 707 }
 708
 709 void
 710 GainMeter::meter_point_clicked ()
 711 {
 712         Route* r;
 713
 714         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 715
 716         }
 717 }
 718
 719 gint
 720 GainMeter::start_gain_touch (GdkEventButton* ev)
 721 {
 722         _io->start_gain_touch ();
 723         return FALSE;
 724 }
 725
 726 gint
 727 GainMeter::end_gain_touch (GdkEventButton* ev)
 728 {
 729         _io->end_gain_touch ();
 730         return FALSE;
 731 }
 732
 733 gint
 734 GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
 735 {
 736         if (ev->type == GDK_BUTTON_RELEASE) {
 737                 return TRUE;
 738         }
 739
 740         switch (ev->button) {
 741                 case 1:
 742                         gain_astate_menu.popup (1, ev->time);
 743                         break;
 744                 default:
 745                         break;
 746         }
 747
 748         return TRUE;
 749 }
 750
 751 gint
 752 GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
 753 {
 754         if (ev->type == GDK_BUTTON_RELEASE) {
 755                 return TRUE;
 756         }
 757
 758         switch (ev->button) {
 759         case 1:
 760                 gain_astyle_menu.popup (1, ev->time);
 761                 break;
 762         default:
 763                 break;
 764         }
 765         return TRUE;
 766 }
 767
 768 string
 769 GainMeter::astate_string (AutoState state)
 770 {
 771         return _astate_string (state, false);
 772 }
 773
 774 string
 775 GainMeter::short_astate_string (AutoState state)
 776 {
 777         return _astate_string (state, true);
 778 }
 779
 780 string
 781 GainMeter::_astate_string (AutoState state, bool shrt)
 782 {
 783         string sstr;
 784
 785         switch (state) {
 786         case Off:
 787                 sstr = (shrt ? "O" : _("O"));
 788                 break;
 789         case Play:
 790                 sstr = (shrt ? "P" : _("P"));
 791                 break;
 792         case Touch:
 793                 sstr = (shrt ? "T" : _("T"));
 794                 break;
 795         case Write:
 796                 sstr = (shrt ? "W" : _("W"));
 797                 break;
 798         }
 799
 800         return sstr;
 801 }
 802
 803 string
 804 GainMeter::astyle_string (AutoStyle style)
 805 {
 806         return _astyle_string (style, false);
 807 }
 808
 809 string
 810 GainMeter::short_astyle_string (AutoStyle style)
 811 {
 812         return _astyle_string (style, true);
 813 }
 814
 815 string
 816 GainMeter::_astyle_string (AutoStyle style, bool shrt)
 817 {
 818         if (style & Trim) {
 819                 return _("Trim");
 820         } else {
 821                 /* XXX it might different in different languages */
 822
 823                 return (shrt ? _("Abs") : _("Abs"));
 824         }
 825 }
 826
 827 void
 828 GainMeter::gain_automation_style_changed ()
 829 {
 830   // Route* _route = dynamic_cast<Route*>(&_io);
 831         switch (_width) {
 832         case Wide:
 833                 gain_automation_style_button.set_label (astyle_string(_io->gain_automation_curve().automation_style()));
 834                 break;
 835         case Narrow:
 836                 gain_automation_style_button.set_label  (short_astyle_string(_io->gain_automation_curve().automation_style()));
 837                 break;
 838         }
 839 }
 840
 841 void
 842 GainMeter::gain_automation_state_changed ()
 843 {
 844         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
 845         //Route* _route = dynamic_cast<Route*>(&_io);
 846
 847         bool x;
 848
 849         switch (_width) {
 850         case Wide:
 851                 gain_automation_state_button.set_label (astate_string(_io->gain_automation_curve().automation_state()));
 852                 break;
 853         case Narrow:
 854                 gain_automation_state_button.set_label (short_astate_string(_io->gain_automation_curve().automation_state()));
 855                 break;
 856         }
 857
 858         x = (_io->gain_automation_state() != Off);
 859
 860         if (gain_automation_state_button.get_active() != x) {
 861                 ignore_toggle = true;
 862                 gain_automation_state_button.set_active (x);
 863                 ignore_toggle = false;
 864         }
 865
 866         update_gain_sensitive ();
 867
 868         /* start watching automation so that things move */
 869
 870         gain_watching.disconnect();
 871
 872         if (x) {
 873                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
 874         }
 875 }