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