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