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         string path = ARDOUR::find_data_file("vslider02_slider.xpm", "pixmaps");
  66         if (path.empty()) {
  67                 error << _("cannot find images for fader slider") << endmsg;
  68                 return -1;
  69         }
  70         slider = Gdk::Pixbuf::create_from_file (path);
  71
  72         path = ARDOUR::find_data_file("vslider02_rail.xpm", "pixmaps");
  73         if (path.empty()) {
  74                 error << _("cannot find images for fader rail") << endmsg;
  75                 return -1;
  76         }
  77         rail = Gdk::Pixbuf::create_from_file (path);
  78
  79         return 0;
  80 }
  81
  82 GainMeter::GainMeter (boost::shared_ptr<IO> io, Session& s)
  83         : _io (io),
  84           _session (s),
  85           gain_slider (0),
  86           // 0.781787 is the value needed for gain to be set to 0.
  87           gain_adjustment (0.781787, 0.0, 1.0, 0.01, 0.1),
  88           gain_display (&gain_adjustment, "MixerStripGainDisplay"),
  89           gain_automation_style_button (""),
  90           gain_automation_state_button ("")
  91
  92 {
  93         if (slider == 0) {
  94                 setup_slider_pix ();
  95         }
  96
  97         ignore_toggle = false;
  98         meter_menu = 0;
  99
 100         gain_slider = manage (new VSliderController (slider, rail,
 101                                                      &gain_adjustment,
 102                                                      _io->gain_control(),
 103                                                      false));
 104
 105         gain_slider->signal_button_press_event().connect (mem_fun(*this, &GainMeter::start_gain_touch));
 106         gain_slider->signal_button_release_event().connect (mem_fun(*this, &GainMeter::end_gain_touch));
 107         gain_slider->set_name ("MixerGainMeter");
 108
 109         gain_display.set_print_func (_gain_printer, this);
 110
 111         gain_display_box.set_spacing (2);
 112         set_size_request_to_display_given_text (gain_display_frame, "-86.g", 2, 6); /* note the descender */
 113         gain_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 114         gain_display_frame.set_name ("BaseFrame");
 115         gain_display_frame.add (gain_display);
 116         gain_display_box.pack_start (gain_display_frame,  Gtk::PACK_SHRINK);
 117
 118         peak_display.set_name ("MixerStripPeakDisplay");
 119         peak_display.add (peak_display_label);
 120         set_size_request_to_display_given_text (peak_display_frame, "-86.g", 2, 6); /* note the descender */
 121         peak_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 122         peak_display_frame.set_name ("BaseFrame");
 123         peak_display_frame.add (peak_display);
 124         max_peak = minus_infinity();
 125         peak_display_label.set_text (_("-inf"));
 126
 127         meter_metric_area.set_size_request (25, -1);
 128         meter_metric_area.set_name ("MeterMetricsStrip");
 129
 130         meter_packer.set_spacing (2);
 131
 132         gain_automation_style_button.set_name ("MixerAutomationModeButton");
 133         gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
 134
 135         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_state_button, _("Fader automation mode"));
 136         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_style_button, _("Fader automation type"));
 137
 138         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 139         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 140
 141         gain_automation_state_button.set_size_request(15, 15);
 142         gain_automation_style_button.set_size_request(15, 15);
 143
 144         fader_vbox = manage (new Gtk::VBox());
 145         fader_vbox->set_spacing (0);
 146         fader_vbox->pack_start (*gain_slider, false, false, 0);
 147
 148         hbox.set_spacing (0);
 149         hbox.pack_start (*fader_vbox, false, false, 2);
 150
 151         set_width(Narrow);
 152
 153         Route* r;
 154
 155         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 156                 /*
 157                    if we don't have a route (if we're the click),
 158                    pack some route-dependent stuff.
 159                 */
 160
 161                 gain_display_box.pack_end (peak_display_frame,  Gtk::PACK_SHRINK);
 162
 163                 hbox.pack_start (meter_packer, true, false);
 164
 165                 using namespace Menu_Helpers;
 166
 167                 gain_astate_menu.items().push_back (MenuElem (_("Off"),
 168                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Off)));
 169                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 170                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Play)));
 171                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 172                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Write)));
 173                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 174                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Touch)));
 175
 176                 gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 177                 gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 178
 179                 gain_astate_menu.set_name ("ArdourContextMenu");
 180                 gain_astyle_menu.set_name ("ArdourContextMenu");
 181
 182                 gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
 183                 gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
 184
 185                 r->gain_automation_curve().automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
 186                 r->gain_automation_curve().automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
 187                 fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 188
 189                 gain_automation_state_changed ();
 190         }
 191
 192
 193         set_spacing (4);
 194
 195         pack_start (gain_display_box,  Gtk::PACK_SHRINK);
 196         pack_start (hbox,  Gtk::PACK_SHRINK);
 197
 198         _io->gain_changed.connect (mem_fun(*this, &GainMeter::gain_changed));
 199
 200         meter_metric_area.signal_expose_event().connect (mem_fun(*this, &GainMeter::meter_metrics_expose));
 201         gain_adjustment.signal_value_changed().connect (mem_fun(*this, &GainMeter::gain_adjusted));
 202         peak_display.signal_button_release_event().connect (mem_fun(*this, &GainMeter::peak_button_release));
 203
 204         Config->ParameterChanged.connect (mem_fun (*this, &GainMeter::parameter_changed));
 205
 206         gain_changed (0);
 207         update_gain_sensitive ();
 208
 209         ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
 210         ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
 211 }
 212
 213 void
 214 GainMeter::set_width (Width w)
 215 {
 216         switch (w) {
 217         case Wide:
 218                 peak_display_frame.show_all();
 219                 break;
 220         case Narrow:
 221                 peak_display_frame.hide_all();
 222                 break;
 223         }
 224
 225         _width = w;
 226         setup_meters ();
 227 }
 228
 229 Glib::RefPtr<Gdk::Pixmap>
 230 GainMeter::render_metrics (Gtk::Widget& w)
 231 {
 232         Glib::RefPtr<Gdk::Window> win (w.get_window());
 233         Glib::RefPtr<Gdk::GC> fg_gc (w.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 234         Glib::RefPtr<Gdk::GC> bg_gc (w.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 235         gint x, y, width, height, depth;
 236         int  db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
 237         char buf[32];
 238
 239         win->get_geometry (x, y, width, height, depth);
 240
 241         Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (win, width, height);
 242
 243         metric_pixmaps[w.get_name()] = pixmap;
 244
 245         pixmap->draw_rectangle (bg_gc, true, 0, 0, width, height);
 246
 247         Glib::RefPtr<Pango::Layout> layout = w.create_pango_layout("");
 248
 249         for (uint32_t i = 0; i < sizeof (db_points)/sizeof (db_points[0]); ++i) {
 250
 251                 float fraction = log_meter (db_points[i]);
 252                 gint pos = height - (gint) floor (height * fraction);
 253
 254                 snprintf (buf, sizeof (buf), "%d", abs (db_points[i]));
 255
 256                 layout->set_text (buf);
 257
 258                 /* we want logical extents, not ink extents here */
 259
 260                 int width, height;
 261                 layout->get_pixel_size (width, height);
 262
 263                 pixmap->draw_line (fg_gc, 0, pos, 4, pos);
 264                 pixmap->draw_layout (fg_gc, 6, pos - (height/2), layout);
 265         }
 266
 267         return pixmap;
 268 }
 269
 270 gint
 271 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 272 {
 273         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 274         Glib::RefPtr<Gdk::GC> fg_gc (meter_metric_area.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 275         Glib::RefPtr<Gdk::GC> bg_gc (meter_metric_area.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 276         GdkRectangle base_rect;
 277         GdkRectangle draw_rect;
 278         gint x, y, width, height, depth;
 279
 280         win->get_geometry (x, y, width, height, depth);
 281
 282         base_rect.width = width;
 283         base_rect.height = height;
 284         base_rect.x = 0;
 285         base_rect.y = 0;
 286
 287         Glib::RefPtr<Gdk::Pixmap> pixmap;
 288         std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
 289
 290         if (i == metric_pixmaps.end()) {
 291                 pixmap = render_metrics (meter_metric_area);
 292         } else {
 293                 pixmap = i->second;
 294         }
 295
 296         gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
 297         win->draw_rectangle (bg_gc, true, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 298         win->draw_drawable (bg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 299
 300         return true;
 301 }
 302
 303 GainMeter::~GainMeter ()
 304 {
 305         if (meter_menu) {
 306                 delete meter_menu;
 307         }
 308
 309         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
 310                 if ((*i).meter) {
 311                         delete (*i).meter;
 312                 }
 313         }
 314 }
 315
 316 void
 317 GainMeter::update_meters ()
 318 {
 319         vector<MeterInfo>::iterator i;
 320         uint32_t n;
 321         float peak;
 322         char buf[32];
 323
 324         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 325                 if ((*i).packed) {
 326                         peak = _io->peak_input_power (n);
 327
 328                         (*i).meter->set (log_meter (peak), peak);
 329
 330                         if (peak > max_peak) {
 331                 max_peak = peak;
 332                 /* set peak display */
 333                                 if (max_peak <= -200.0f) {
 334                                         peak_display_label.set_text (_("-inf"));
 335                                 } else {
 336                                         snprintf (buf, sizeof(buf), "%.1f", max_peak);
 337                                         peak_display_label.set_text (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();
 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();
 405                         break;
 406                 case MeterPostFader:
 407                         nmeters = r->n_outputs();
 408                         break;
 409                 }
 410
 411         } else {
 412
 413                 nmeters = _io->n_outputs();
 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         for (uint32_t n = 0; n < nmeters; ++n) {
 432                 if (meters[n].width != width) {
 433                         delete meters[n].meter;
 434                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, FastMeter::Vertical);
 435                         meters[n].width = width;
 436
 437                         meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
 438                         meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
 439                 }
 440
 441                 meter_packer.pack_start (*meters[n].meter, Gtk::PACK_SHRINK);
 442                 meters[n].meter->show_all ();
 443                 meters[n].packed = true;
 444         }
 445
 446         if (_width == Wide) {
 447                 meter_packer.pack_start (meter_metric_area, Gtk::PACK_SHRINK);
 448                 meter_metric_area.show_all ();
 449         }
 450 }
 451
 452 gint
 453 GainMeter::peak_button_release (GdkEventButton* ev)
 454 {
 455         /* reset peak label */
 456
 457         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control|Keyboard::Shift)) {
 458                 ResetAllPeakDisplays ();
 459         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 460                 Route* r;
 461                 if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 462                         ResetGroupPeakDisplays (r->mix_group());
 463                 }
 464         } else {
 465                 reset_peak_display ();
 466         }
 467         return TRUE;
 468 }
 469
 470 void
 471 GainMeter::reset_peak_display ()
 472 {
 473         max_peak = minus_infinity();
 474         peak_display_label.set_text (_("-Inf"));
 475         peak_display.set_name ("MixerStripPeakDisplay");
 476 }
 477
 478 void
 479 GainMeter::reset_group_peak_display (RouteGroup* group)
 480 {
 481         Route* r;
 482         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 483                 if (group == r->mix_group()) {
 484                         reset_peak_display ();
 485                 }
 486         }
 487 }
 488
 489 gint
 490 GainMeter::meter_button_release (GdkEventButton* ev, uint32_t which)
 491 {
 492         switch (ev->button) {
 493         case 1:
 494                 meters[which].meter->clear();
 495                 max_peak = minus_infinity();
 496                 peak_display_label.set_text (_("-inf"));
 497                 peak_display.set_name ("MixerStripPeakDisplay");
 498                 break;
 499
 500         case 3:
 501                 // popup_meter_menu (ev);
 502                 break;
 503         };
 504
 505         return TRUE;
 506 }
 507
 508 void
 509 GainMeter::popup_meter_menu (GdkEventButton *ev)
 510 {
 511         using namespace Menu_Helpers;
 512
 513         if (meter_menu == 0) {
 514                 meter_menu = new Gtk::Menu;
 515                 MenuList& items = meter_menu->items();
 516
 517                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 518                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 519                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 520                 items.push_back (SeparatorElem());
 521                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 522                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 523                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 524         }
 525
 526         meter_menu->popup (1, ev->time);
 527 }
 528
 529 void
 530 GainMeter::_gain_printer (char buf[32], Gtk::Adjustment& adj, void *arg)
 531 {
 532         static_cast<GainMeter *>(arg)->gain_printer (buf, adj);
 533 }
 534
 535 void
 536 GainMeter::gain_printer (char buf[32], Gtk::Adjustment& adj)
 537 {
 538         float v = adj.get_value();
 539
 540         if (v == 0.0) {
 541                 strcpy (buf, _("-inf"));
 542         } else {
 543                 snprintf (buf, 32, "%.1f", coefficient_to_dB (slider_position_to_gain (v)));
 544         }
 545 }
 546
 547 void
 548 GainMeter::gain_adjusted ()
 549 {
 550         if (!ignore_toggle) {
 551                 _io->set_gain (slider_position_to_gain (gain_adjustment.get_value()), this);
 552         }
 553 }
 554
 555 void
 556 GainMeter::effective_gain_display ()
 557 {
 558         gfloat value = gain_to_slider_position (_io->effective_gain());
 559
 560         if (gain_adjustment.get_value() != value) {
 561                 ignore_toggle = true;
 562                 gain_adjustment.set_value (value);
 563                 ignore_toggle = false;
 564         }
 565 }
 566
 567 void
 568 GainMeter::gain_changed (void *src)
 569 {
 570         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &GainMeter::effective_gain_display));
 571 }
 572
 573 void
 574 GainMeter::set_meter_strip_name (const char * name)
 575 {
 576         meter_metric_area.set_name (name);
 577 }
 578
 579 void
 580 GainMeter::set_fader_name (const char * name)
 581 {
 582         gain_slider->set_name (name);
 583 }
 584
 585 void
 586 GainMeter::update_gain_sensitive ()
 587 {
 588         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io->gain_automation_state() & Play));
 589 }
 590
 591
 592 static MeterPoint
 593 next_meter_point (MeterPoint mp)
 594 {
 595         switch (mp) {
 596         case MeterInput:
 597                 return MeterPreFader;
 598                 break;
 599
 600         case MeterPreFader:
 601                 return MeterPostFader;
 602                 break;
 603
 604         case MeterPostFader:
 605                 return MeterInput;
 606                 break;
 607         }
 608         /*NOTREACHED*/
 609         return MeterInput;
 610 }
 611
 612 gint
 613 GainMeter::meter_press(GdkEventButton* ev)
 614 {
 615         Route* _route;
 616
 617         wait_for_release = false;
 618
 619         if ((_route = dynamic_cast<Route*>(_io.get())) == 0) {
 620                 return FALSE;
 621         }
 622
 623         if (!ignore_toggle) {
 624
 625                 if (Keyboard::is_context_menu_event (ev)) {
 626
 627                         // no menu at this time.
 628
 629                 } else {
 630
 631                         if (ev->button == 2) {
 632
 633                                 // ctrl-button2 click is the midi binding click
 634                                 // button2-click is "momentary"
 635
 636                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control))) {
 637                                         wait_for_release = true;
 638                                         old_meter_point = _route->meter_point ();
 639                                 }
 640                         }
 641
 642                         if (ev->button == 1 || ev->button == 2) {
 643
 644                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Shift))) {
 645
 646                                         /* ctrl-shift-click applies change to all routes */
 647
 648                                         _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
 649
 650                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 651
 652                                         /* ctrl-click: solo mix group.
 653                                            ctrl-button2 is MIDI learn.
 654                                         */
 655
 656                                         if (ev->button == 1) {
 657                                                 set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 658                                         }
 659
 660                                 } else {
 661
 662                                         /* click: solo this route */
 663
 664                                         _route->set_meter_point (next_meter_point (_route->meter_point()), this);
 665                                 }
 666                         }
 667                 }
 668         }
 669
 670         return true;
 671
 672 }
 673
 674 gint
 675 GainMeter::meter_release(GdkEventButton* ev)
 676 {
 677
 678         if(!ignore_toggle){
 679                 if (wait_for_release){
 680                         wait_for_release = false;
 681                         set_meter_point (*(dynamic_cast<Route*>(_io.get())), old_meter_point);
 682                 }
 683         }
 684         return true;
 685 }
 686
 687 void
 688 GainMeter::set_meter_point (Route& route, MeterPoint mp)
 689 {
 690         route.set_meter_point (mp, this);
 691 }
 692
 693 void
 694 GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
 695 {
 696         RouteGroup* mix_group;
 697
 698         if((mix_group = route.mix_group()) != 0){
 699                 mix_group->apply (&Route::set_meter_point, mp, this);
 700         } else {
 701                 route.set_meter_point (mp, this);
 702         }
 703 }
 704
 705 void
 706 GainMeter::meter_point_clicked ()
 707 {
 708         Route* r;
 709
 710         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 711
 712         }
 713 }
 714
 715 gint
 716 GainMeter::start_gain_touch (GdkEventButton* ev)
 717 {
 718         _io->start_gain_touch ();
 719         return FALSE;
 720 }
 721
 722 gint
 723 GainMeter::end_gain_touch (GdkEventButton* ev)
 724 {
 725         _io->end_gain_touch ();
 726         return FALSE;
 727 }
 728
 729 gint
 730 GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
 731 {
 732         if (ev->type == GDK_BUTTON_RELEASE) {
 733                 return TRUE;
 734         }
 735
 736         switch (ev->button) {
 737                 case 1:
 738                         gain_astate_menu.popup (1, ev->time);
 739                         break;
 740                 default:
 741                         break;
 742         }
 743
 744         return TRUE;
 745 }
 746
 747 gint
 748 GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
 749 {
 750         if (ev->type == GDK_BUTTON_RELEASE) {
 751                 return TRUE;
 752         }
 753
 754         switch (ev->button) {
 755         case 1:
 756                 gain_astyle_menu.popup (1, ev->time);
 757                 break;
 758         default:
 759                 break;
 760         }
 761         return TRUE;
 762 }
 763
 764 string
 765 GainMeter::astate_string (AutoState state)
 766 {
 767         return _astate_string (state, false);
 768 }
 769
 770 string
 771 GainMeter::short_astate_string (AutoState state)
 772 {
 773         return _astate_string (state, true);
 774 }
 775
 776 string
 777 GainMeter::_astate_string (AutoState state, bool shrt)
 778 {
 779         string sstr;
 780
 781         switch (state) {
 782         case Off:
 783                 sstr = (shrt ? "O" : _("O"));
 784                 break;
 785         case Play:
 786                 sstr = (shrt ? "P" : _("P"));
 787                 break;
 788         case Touch:
 789                 sstr = (shrt ? "T" : _("T"));
 790                 break;
 791         case Write:
 792                 sstr = (shrt ? "W" : _("W"));
 793                 break;
 794         }
 795
 796         return sstr;
 797 }
 798
 799 string
 800 GainMeter::astyle_string (AutoStyle style)
 801 {
 802         return _astyle_string (style, false);
 803 }
 804
 805 string
 806 GainMeter::short_astyle_string (AutoStyle style)
 807 {
 808         return _astyle_string (style, true);
 809 }
 810
 811 string
 812 GainMeter::_astyle_string (AutoStyle style, bool shrt)
 813 {
 814         if (style & Trim) {
 815                 return _("Trim");
 816         } else {
 817                 /* XXX it might different in different languages */
 818
 819                 return (shrt ? _("Abs") : _("Abs"));
 820         }
 821 }
 822
 823 void
 824 GainMeter::gain_automation_style_changed ()
 825 {
 826   // Route* _route = dynamic_cast<Route*>(&_io);
 827         switch (_width) {
 828         case Wide:
 829                 gain_automation_style_button.set_label (astyle_string(_io->gain_automation_curve().automation_style()));
 830                 break;
 831         case Narrow:
 832                 gain_automation_style_button.set_label  (short_astyle_string(_io->gain_automation_curve().automation_style()));
 833                 break;
 834         }
 835 }
 836
 837 void
 838 GainMeter::gain_automation_state_changed ()
 839 {
 840         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
 841         //Route* _route = dynamic_cast<Route*>(&_io);
 842
 843         bool x;
 844
 845         switch (_width) {
 846         case Wide:
 847                 gain_automation_state_button.set_label (astate_string(_io->gain_automation_curve().automation_state()));
 848                 break;
 849         case Narrow:
 850                 gain_automation_state_button.set_label (short_astate_string(_io->gain_automation_curve().automation_state()));
 851                 break;
 852         }
 853
 854         x = (_io->gain_automation_state() != Off);
 855
 856         if (gain_automation_state_button.get_active() != x) {
 857                 ignore_toggle = true;
 858                 gain_automation_state_button.set_active (x);
 859                 ignore_toggle = false;
 860         }
 861
 862         update_gain_sensitive ();
 863
 864         /* start watching automation so that things move */
 865
 866         gain_watching.disconnect();
 867
 868         if (x) {
 869                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
 870         }
 871 }