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 (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.midi_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         if (_session.midi_port()) {
 110                 _io.set_midi_to_gain_function (slider_position_to_gain);
 111                 _io.set_gain_to_midi_function (gain_to_slider_position);
 112         }
 113
 114         gain_display.set_print_func (_gain_printer, this);
 115
 116         gain_display_box.set_spacing (2);
 117         set_size_request_to_display_given_text (gain_display_frame, "-86.g", 2, 6); /* note the descender */
 118         gain_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 119         gain_display_frame.set_name ("BaseFrame");
 120         gain_display_frame.add (gain_display);
 121         gain_display_box.pack_start (gain_display_frame,  Gtk::PACK_SHRINK);
 122
 123         peak_display.set_name ("MixerStripPeakDisplay");
 124         peak_display.add (peak_display_label);
 125         set_size_request_to_display_given_text (peak_display_frame, "-86.g", 2, 6); /* note the descender */
 126         peak_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 127         peak_display_frame.set_name ("BaseFrame");
 128         peak_display_frame.add (peak_display);
 129         max_peak = minus_infinity();
 130         peak_display_label.set_text (_("-inf"));
 131
 132         meter_metric_area.set_size_request (25, -1);
 133         meter_metric_area.set_name ("MeterMetricsStrip");
 134
 135         meter_packer.set_spacing (2);
 136
 137         gain_automation_style_button.set_name ("MixerAutomationModeButton");
 138         gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
 139
 140         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_state_button, _("Fader automation mode"));
 141         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_style_button, _("Fader automation type"));
 142
 143         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 144         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 145
 146         gain_automation_state_button.set_size_request(15, 15);
 147         gain_automation_style_button.set_size_request(15, 15);
 148
 149         fader_vbox = manage (new Gtk::VBox());
 150         fader_vbox->set_spacing (0);
 151         fader_vbox->pack_start (*gain_slider, false, false, 0);
 152
 153         hbox.set_spacing (0);
 154         hbox.pack_start (*fader_vbox, false, false, 2);
 155
 156         set_width(Narrow);
 157
 158         Route* r;
 159
 160         if ((r = dynamic_cast<Route*> (&_io)) != 0) {
 161                 /*
 162                    if we don't have a route (if we're the click),
 163                    pack some route-dependent stuff.
 164                 */
 165
 166                 gain_display_box.pack_end (peak_display_frame,  Gtk::PACK_SHRINK);
 167
 168                 hbox.pack_start (meter_packer, true, false);
 169
 170                 using namespace Menu_Helpers;
 171
 172                 gain_astate_menu.items().push_back (MenuElem (_("Off"),
 173                                                       bind (mem_fun (&_io, &IO::set_gain_automation_state), (AutoState) Off)));
 174                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 175                                                       bind (mem_fun (&_io, &IO::set_gain_automation_state), (AutoState) Play)));
 176                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 177                                                       bind (mem_fun (&_io, &IO::set_gain_automation_state), (AutoState) Write)));
 178                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 179                                                       bind (mem_fun (&_io, &IO::set_gain_automation_state), (AutoState) Touch)));
 180
 181                 gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 182                 gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 183
 184                 gain_astate_menu.set_name ("ArdourContextMenu");
 185                 gain_astyle_menu.set_name ("ArdourContextMenu");
 186
 187                 gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
 188                 gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
 189
 190                 r->gain_automation_curve().automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
 191                 r->gain_automation_curve().automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
 192                 fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 193
 194                 gain_automation_state_changed ();
 195         }
 196
 197
 198         set_spacing (4);
 199
 200         pack_start (gain_display_box,  Gtk::PACK_SHRINK);
 201         pack_start (hbox,  Gtk::PACK_SHRINK);
 202
 203         _io.gain_changed.connect (mem_fun(*this, &GainMeter::gain_changed));
 204
 205         meter_metric_area.signal_expose_event().connect (mem_fun(*this, &GainMeter::meter_metrics_expose));
 206         gain_adjustment.signal_value_changed().connect (mem_fun(*this, &GainMeter::gain_adjusted));
 207         peak_display.signal_button_release_event().connect (mem_fun(*this, &GainMeter::peak_button_release));
 208
 209         _session.MeterHoldChanged.connect (mem_fun(*this, &GainMeter::meter_hold_changed));
 210
 211         gain_changed (0);
 212         update_gain_sensitive ();
 213
 214         ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
 215         ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
 216 }
 217
 218 void
 219 GainMeter::set_width (Width w)
 220 {
 221         switch (w) {
 222         case Wide:
 223                 peak_display_frame.show_all();
 224                 break;
 225         case Narrow:
 226                 peak_display_frame.hide_all();
 227                 break;
 228         }
 229
 230         _width = w;
 231         setup_meters ();
 232 }
 233
 234 Glib::RefPtr<Gdk::Pixmap>
 235 GainMeter::render_metrics (Gtk::Widget& w)
 236 {
 237         Glib::RefPtr<Gdk::Window> win (w.get_window());
 238         Glib::RefPtr<Gdk::GC> fg_gc (w.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 239         Glib::RefPtr<Gdk::GC> bg_gc (w.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 240         gint x, y, width, height, depth;
 241         int  db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
 242         char buf[32];
 243
 244         win->get_geometry (x, y, width, height, depth);
 245
 246         Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (win, width, height);
 247
 248         metric_pixmaps[w.get_name()] = pixmap;
 249
 250         pixmap->draw_rectangle (bg_gc, true, 0, 0, width, height);
 251
 252         Glib::RefPtr<Pango::Layout> layout = w.create_pango_layout("");
 253
 254         for (uint32_t i = 0; i < sizeof (db_points)/sizeof (db_points[0]); ++i) {
 255
 256                 float fraction = log_meter (db_points[i]);
 257                 gint pos = height - (gint) floor (height * fraction);
 258
 259                 snprintf (buf, sizeof (buf), "%d", abs (db_points[i]));
 260
 261                 layout->set_text (buf);
 262
 263                 /* we want logical extents, not ink extents here */
 264
 265                 int width, height;
 266                 layout->get_pixel_size (width, height);
 267
 268                 pixmap->draw_line (fg_gc, 0, pos, 4, pos);
 269                 pixmap->draw_layout (fg_gc, 6, pos - (height/2), layout);
 270         }
 271
 272         return pixmap;
 273 }
 274
 275 gint
 276 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 277 {
 278         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 279         Glib::RefPtr<Gdk::GC> fg_gc (meter_metric_area.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 280         Glib::RefPtr<Gdk::GC> bg_gc (meter_metric_area.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 281         GdkRectangle base_rect;
 282         GdkRectangle draw_rect;
 283         gint x, y, width, height, depth;
 284
 285         win->get_geometry (x, y, width, height, depth);
 286
 287         base_rect.width = width;
 288         base_rect.height = height;
 289         base_rect.x = 0;
 290         base_rect.y = 0;
 291
 292         Glib::RefPtr<Gdk::Pixmap> pixmap;
 293         std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
 294
 295         if (i == metric_pixmaps.end()) {
 296                 pixmap = render_metrics (meter_metric_area);
 297         } else {
 298                 pixmap = i->second;
 299         }
 300
 301         gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
 302         win->draw_rectangle (bg_gc, true, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 303         win->draw_drawable (bg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 304
 305         return true;
 306 }
 307
 308 GainMeter::~GainMeter ()
 309 {
 310         if (meter_menu) {
 311                 delete meter_menu;
 312         }
 313
 314         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
 315                 if ((*i).meter) {
 316                         delete (*i).meter;
 317                 }
 318         }
 319 }
 320
 321 void
 322 GainMeter::update_meters ()
 323 {
 324         vector<MeterInfo>::iterator i;
 325         uint32_t n;
 326         float peak;
 327         char buf[32];
 328
 329         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 330                 if ((*i).packed) {
 331                         peak = _io.peak_input_power (n);
 332
 333                         (*i).meter->set (log_meter (peak), peak);
 334
 335                         if (peak > max_peak) {
 336                 max_peak = peak;
 337                 /* set peak display */
 338                                 if (max_peak <= -200.0f) {
 339                                         peak_display_label.set_text (_("-inf"));
 340                                 } else {
 341                                         snprintf (buf, sizeof(buf), "%.1f", max_peak);
 342                                         peak_display_label.set_text (buf);
 343                                 }
 344
 345                                 if (max_peak >= 0.0f) {
 346                                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 347                                 }
 348                         }
 349                 }
 350         }
 351 }
 352
 353 void
 354 GainMeter::meter_hold_changed()
 355 {
 356         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::meter_hold_changed));
 357
 358         vector<MeterInfo>::iterator i;
 359         uint32_t n;
 360
 361         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 362
 363                 (*i).meter->set_hold_count ((uint32_t) floor(_session.meter_hold()));
 364         }
 365 }
 366
 367 void
 368 GainMeter::hide_all_meters ()
 369 {
 370         bool remove_metric_area = false;
 371
 372         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 373                 if ((*i).packed) {
 374                         remove_metric_area = true;
 375                         meter_packer.remove (*((*i).meter));
 376                         (*i).packed = false;
 377                 }
 378         }
 379
 380         if (remove_metric_area) {
 381                 if (meter_metric_area.get_parent()) {
 382                         meter_packer.remove (meter_metric_area);
 383                 }
 384         }
 385 }
 386
 387 void
 388 GainMeter::setup_meters ()
 389 {
 390         uint32_t nmeters = _io.n_outputs();
 391         guint16 width;
 392
 393         hide_all_meters ();
 394
 395         Route* r;
 396
 397         if ((r = dynamic_cast<Route*> (&_io)) != 0) {
 398
 399                 switch (r->meter_point()) {
 400                 case MeterPreFader:
 401                 case MeterInput:
 402                         nmeters = r->n_inputs();
 403                         break;
 404                 case MeterPostFader:
 405                         nmeters = r->n_outputs();
 406                         break;
 407                 }
 408
 409         } else {
 410
 411                 nmeters = _io.n_outputs();
 412
 413         }
 414
 415         if (nmeters == 0) {
 416                 return;
 417         }
 418
 419         if (nmeters <= 2) {
 420                 width = regular_meter_width;
 421         } else {
 422                 width = thin_meter_width;
 423         }
 424
 425         while (meters.size() < nmeters) {
 426                 meters.push_back (MeterInfo());
 427         }
 428
 429         for (uint32_t n = 0; n < nmeters; ++n) {
 430                 if (meters[n].width != width) {
 431                         delete meters[n].meter;
 432                         meters[n].meter = new FastMeter ((uint32_t) floor (_session.meter_hold()), width, FastMeter::Vertical);
 433                         meters[n].width = width;
 434
 435                         meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
 436                         meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
 437                 }
 438
 439                 meter_packer.pack_start (*meters[n].meter, Gtk::PACK_SHRINK);
 440                 meters[n].meter->show_all ();
 441                 meters[n].packed = true;
 442         }
 443
 444         if (_width == Wide) {
 445                 meter_packer.pack_start (meter_metric_area, Gtk::PACK_SHRINK);
 446                 meter_metric_area.show_all ();
 447         }
 448 }
 449
 450 gint
 451 GainMeter::peak_button_release (GdkEventButton* ev)
 452 {
 453         /* reset peak label */
 454
 455         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control|Keyboard::Shift)) {
 456                 ResetAllPeakDisplays ();
 457         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 458                 Route* r;
 459                 if ((r = dynamic_cast<Route*> (&_io)) != 0) {
 460                         ResetGroupPeakDisplays (r->mix_group());
 461                 }
 462         } else {
 463                 reset_peak_display ();
 464         }
 465         return TRUE;
 466 }
 467
 468 void
 469 GainMeter::reset_peak_display ()
 470 {
 471         max_peak = minus_infinity();
 472         peak_display_label.set_text (_("-Inf"));
 473         peak_display.set_name ("Mixerstrippeakdisplay");
 474 }
 475
 476 void
 477 GainMeter::reset_group_peak_display (RouteGroup* group)
 478 {
 479         Route* r;
 480         if ((r = dynamic_cast<Route*> (&_io)) != 0) {
 481                 if (group == r->mix_group()) {
 482                         reset_peak_display ();
 483                 }
 484         }
 485 }
 486
 487 gint
 488 GainMeter::meter_button_release (GdkEventButton* ev, uint32_t which)
 489 {
 490         switch (ev->button) {
 491         case 1:
 492                 meters[which].meter->clear();
 493                 max_peak = minus_infinity();
 494                 peak_display_label.set_text (_("-inf"));
 495                 peak_display.set_name ("MixerStripPeakDisplay");
 496                 break;
 497
 498         case 3:
 499                 // popup_meter_menu (ev);
 500                 break;
 501         };
 502
 503         return TRUE;
 504 }
 505
 506 void
 507 GainMeter::popup_meter_menu (GdkEventButton *ev)
 508 {
 509         using namespace Menu_Helpers;
 510
 511         if (meter_menu == 0) {
 512                 meter_menu = new Gtk::Menu;
 513                 MenuList& items = meter_menu->items();
 514
 515                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 516                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 517                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 518                 items.push_back (SeparatorElem());
 519                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 520                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 521                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 522         }
 523
 524         meter_menu->popup (1, ev->time);
 525 }
 526
 527 void
 528 GainMeter::_gain_printer (char buf[32], Gtk::Adjustment& adj, void *arg)
 529 {
 530         static_cast<GainMeter *>(arg)->gain_printer (buf, adj);
 531 }
 532
 533 void
 534 GainMeter::gain_printer (char buf[32], Gtk::Adjustment& adj)
 535 {
 536         float v = adj.get_value();
 537
 538         if (v == 0.0) {
 539                 strcpy (buf, _("-inf"));
 540         } else {
 541                 snprintf (buf, 32, "%.1f", coefficient_to_dB (slider_position_to_gain (v)));
 542         }
 543 }
 544
 545 void
 546 GainMeter::gain_adjusted ()
 547 {
 548         if (!ignore_toggle) {
 549                 _io.set_gain (slider_position_to_gain (gain_adjustment.get_value()), this);
 550         }
 551 }
 552
 553 void
 554 GainMeter::effective_gain_display ()
 555 {
 556         gfloat value = gain_to_slider_position (_io.effective_gain());
 557
 558         if (gain_adjustment.get_value() != value) {
 559                 ignore_toggle = true;
 560                 gain_adjustment.set_value (value);
 561                 ignore_toggle = false;
 562         }
 563 }
 564
 565 void
 566 GainMeter::gain_changed (void *src)
 567 {
 568         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &GainMeter::effective_gain_display));
 569 }
 570
 571 void
 572 GainMeter::set_meter_strip_name (const char * name)
 573 {
 574         meter_metric_area.set_name (name);
 575 }
 576
 577 void
 578 GainMeter::set_fader_name (const char * name)
 579 {
 580         gain_slider->set_name (name);
 581 }
 582
 583 void
 584 GainMeter::update_gain_sensitive ()
 585 {
 586         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io.gain_automation_state() & Play));
 587 }
 588
 589
 590 static MeterPoint
 591 next_meter_point (MeterPoint mp)
 592 {
 593         switch (mp) {
 594         case MeterInput:
 595                 return MeterPreFader;
 596                 break;
 597
 598         case MeterPreFader:
 599                 return MeterPostFader;
 600                 break;
 601
 602         case MeterPostFader:
 603                 return MeterInput;
 604                 break;
 605         }
 606         /*NOTREACHED*/
 607         return MeterInput;
 608 }
 609
 610 gint
 611 GainMeter::meter_press(GdkEventButton* ev)
 612 {
 613         Route* _route;
 614
 615         wait_for_release = false;
 616
 617         if ((_route = dynamic_cast<Route*>(&_io)) == 0) {
 618                 return FALSE;
 619         }
 620
 621         if (!ignore_toggle) {
 622
 623                 if (Keyboard::is_context_menu_event (ev)) {
 624
 625                         // no menu at this time.
 626
 627                 } else {
 628
 629                         if (ev->button == 2) {
 630
 631                                 // ctrl-button2 click is the midi binding click
 632                                 // button2-click is "momentary"
 633
 634                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control))) {
 635                                         wait_for_release = true;
 636                                         old_meter_point = _route->meter_point ();
 637                                 }
 638                         }
 639
 640                         if (ev->button == 1 || ev->button == 2) {
 641
 642                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Shift))) {
 643
 644                                         /* ctrl-shift-click applies change to all routes */
 645
 646                                         _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
 647
 648                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 649
 650                                         /* ctrl-click: solo mix group.
 651                                            ctrl-button2 is MIDI learn.
 652                                         */
 653
 654                                         if (ev->button == 1) {
 655                                                 set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 656                                         }
 657
 658                                 } else {
 659
 660                                         /* click: solo this route */
 661
 662                                         _route->set_meter_point (next_meter_point (_route->meter_point()), this);
 663                                 }
 664                         }
 665                 }
 666         }
 667
 668         return true;
 669
 670 }
 671
 672 gint
 673 GainMeter::meter_release(GdkEventButton* ev)
 674 {
 675
 676         if(!ignore_toggle){
 677                 if (wait_for_release){
 678                         wait_for_release = false;
 679                         set_meter_point (*(dynamic_cast<Route*>(&_io)), old_meter_point);
 680                 }
 681         }
 682         return true;
 683 }
 684
 685 void
 686 GainMeter::set_meter_point (Route& route, MeterPoint mp)
 687 {
 688         route.set_meter_point (mp, this);
 689 }
 690
 691 void
 692 GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
 693 {
 694         RouteGroup* mix_group;
 695
 696         if((mix_group = route.mix_group()) != 0){
 697                 mix_group->apply (&Route::set_meter_point, mp, this);
 698         } else {
 699                 route.set_meter_point (mp, this);
 700         }
 701 }
 702
 703 void
 704 GainMeter::meter_point_clicked ()
 705 {
 706         Route* r;
 707
 708         if ((r = dynamic_cast<Route*> (&_io)) != 0) {
 709
 710         }
 711 }
 712
 713 gint
 714 GainMeter::start_gain_touch (GdkEventButton* ev)
 715 {
 716         _io.start_gain_touch ();
 717         return FALSE;
 718 }
 719
 720 gint
 721 GainMeter::end_gain_touch (GdkEventButton* ev)
 722 {
 723         _io.end_gain_touch ();
 724         return FALSE;
 725 }
 726
 727 gint
 728 GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
 729 {
 730         if (ev->type == GDK_BUTTON_RELEASE) {
 731                 return TRUE;
 732         }
 733
 734         switch (ev->button) {
 735                 case 1:
 736                         gain_astate_menu.popup (1, ev->time);
 737                         break;
 738                 default:
 739                         break;
 740         }
 741
 742         return TRUE;
 743 }
 744
 745 gint
 746 GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
 747 {
 748         if (ev->type == GDK_BUTTON_RELEASE) {
 749                 return TRUE;
 750         }
 751
 752         switch (ev->button) {
 753         case 1:
 754                 gain_astyle_menu.popup (1, ev->time);
 755                 break;
 756         default:
 757                 break;
 758         }
 759         return TRUE;
 760 }
 761
 762 string
 763 GainMeter::astate_string (AutoState state)
 764 {
 765         return _astate_string (state, false);
 766 }
 767
 768 string
 769 GainMeter::short_astate_string (AutoState state)
 770 {
 771         return _astate_string (state, true);
 772 }
 773
 774 string
 775 GainMeter::_astate_string (AutoState state, bool shrt)
 776 {
 777         string sstr;
 778
 779         switch (state) {
 780         case Off:
 781                 sstr = (shrt ? "O" : _("O"));
 782                 break;
 783         case Play:
 784                 sstr = (shrt ? "P" : _("P"));
 785                 break;
 786         case Touch:
 787                 sstr = (shrt ? "T" : _("T"));
 788                 break;
 789         case Write:
 790                 sstr = (shrt ? "W" : _("W"));
 791                 break;
 792         }
 793
 794         return sstr;
 795 }
 796
 797 string
 798 GainMeter::astyle_string (AutoStyle style)
 799 {
 800         return _astyle_string (style, false);
 801 }
 802
 803 string
 804 GainMeter::short_astyle_string (AutoStyle style)
 805 {
 806         return _astyle_string (style, true);
 807 }
 808
 809 string
 810 GainMeter::_astyle_string (AutoStyle style, bool shrt)
 811 {
 812         if (style & Trim) {
 813                 return _("Trim");
 814         } else {
 815                 /* XXX it might different in different languages */
 816
 817                 return (shrt ? _("Abs") : _("Abs"));
 818         }
 819 }
 820
 821 void
 822 GainMeter::gain_automation_style_changed ()
 823 {
 824   // Route* _route = dynamic_cast<Route*>(&_io);
 825         switch (_width) {
 826         case Wide:
 827                 gain_automation_style_button.set_label (astyle_string(_io.gain_automation_curve().automation_style()));
 828                 break;
 829         case Narrow:
 830                 gain_automation_style_button.set_label  (short_astyle_string(_io.gain_automation_curve().automation_style()));
 831                 break;
 832         }
 833 }
 834
 835 void
 836 GainMeter::gain_automation_state_changed ()
 837 {
 838         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
 839         //Route* _route = dynamic_cast<Route*>(&_io);
 840
 841         bool x;
 842
 843         switch (_width) {
 844         case Wide:
 845                 gain_automation_state_button.set_label (astate_string(_io.gain_automation_curve().automation_state()));
 846                 break;
 847         case Narrow:
 848                 gain_automation_state_button.set_label (short_astate_string(_io.gain_automation_curve().automation_state()));
 849                 break;
 850         }
 851
 852         x = (_io.gain_automation_state() != Off);
 853
 854         if (gain_automation_state_button.get_active() != x) {
 855                 ignore_toggle = true;
 856                 gain_automation_state_button.set_active (x);
 857                 ignore_toggle = false;
 858         }
 859
 860         update_gain_sensitive ();
 861
 862         /* start watching automation so that things move */
 863
 864         gain_watching.disconnect();
 865
 866         if (x) {
 867                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
 868         }
 869 }