gtk2_ardour/gain_meter.cc

   1 /*
   2   Copyright (C) 2002 Paul Davis
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program; if not, write to the Free Software
  16   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18   $Id$
  19 */
  20
  21 #include <limits.h>
  22
  23 #include <ardour/io.h>
  24 #include <ardour/route.h>
  25 #include <ardour/route_group.h>
  26 #include <ardour/session.h>
  27 #include <ardour/session_route.h>
  28 #include <ardour/dB.h>
  29
  30 #include <gtkmm2ext/utils.h>
  31 #include <gtkmm2ext/fastmeter.h>
  32 #include <gtkmm2ext/stop_signal.h>
  33 #include <gtkmm2ext/barcontroller.h>
  34 #include <midi++/manager.h>
  35 #include <pbd/fastlog.h>
  36
  37 #include "ardour_ui.h"
  38 #include "gain_meter.h"
  39 #include "utils.h"
  40 #include "logmeter.h"
  41 #include "gui_thread.h"
  42 #include "keyboard.h"
  43
  44 #include <ardour/session.h>
  45 #include <ardour/route.h>
  46
  47 #include "i18n.h"
  48
  49 using namespace ARDOUR;
  50 using namespace PBD;
  51 using namespace Gtkmm2ext;
  52 using namespace Gtk;
  53 using namespace sigc;
  54 using namespace std;
  55
  56 sigc::signal<void> GainMeter::ResetAllPeakDisplays;
  57 sigc::signal<void,RouteGroup*> GainMeter::ResetGroupPeakDisplays;
  58 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider;
  59 Glib::RefPtr<Gdk::Pixbuf> GainMeter::rail;
  60 map<string,Glib::RefPtr<Gdk::Pixmap> > GainMeter::metric_pixmaps;
  61
  62 int
  63 GainMeter::setup_slider_pix ()
  64 {
  65         slider = ::get_icon ("fader_belt");
  66         return 0;
  67 }
  68
  69 GainMeter::GainMeter (boost::shared_ptr<IO> io, Session& s)
  70         : _io (io),
  71           _session (s),
  72           gain_slider (0),
  73           // 0.781787 is the value needed for gain to be set to 0.
  74           gain_adjustment (0.781787, 0.0, 1.0, 0.01, 0.1),
  75           gain_display (&gain_adjustment, "MixerStripGainDisplay"),
  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
  87         gain_slider = manage (new VSliderController (slider,
  88                                                      &gain_adjustment,
  89                                                      _io->gain_control(),
  90                                                      false));
  91
  92         gain_slider->signal_button_press_event().connect (mem_fun(*this, &GainMeter::start_gain_touch));
  93         gain_slider->signal_button_release_event().connect (mem_fun(*this, &GainMeter::end_gain_touch));
  94         gain_slider->set_name ("MixerGainMeter");
  95
  96         gain_display.set_print_func (_gain_printer, this);
  97
  98         gain_display_box.set_spacing (2);
  99         set_size_request_to_display_given_text (gain_display_frame, "-86.g", 2, 6); /* note the descender */
 100         gain_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 101         gain_display_frame.set_name ("BaseFrame");
 102         gain_display_frame.add (gain_display);
 103         gain_display_box.pack_start (gain_display_frame,  Gtk::PACK_SHRINK);
 104
 105         peak_display.set_name ("MixerStripPeakDisplay");
 106         peak_display.add (peak_display_label);
 107         set_size_request_to_display_given_text (peak_display_frame, "-86.g", 2, 6); /* note the descender */
 108         peak_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 109         peak_display_frame.set_name ("BaseFrame");
 110         peak_display_frame.add (peak_display);
 111         max_peak = minus_infinity();
 112         peak_display_label.set_text (_("-inf"));
 113
 114         meter_metric_area.set_size_request (25, -1);
 115         meter_metric_area.set_name ("MeterMetricsStrip");
 116
 117         meter_packer.set_spacing (2);
 118
 119         gain_automation_style_button.set_name ("MixerAutomationModeButton");
 120         gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
 121
 122         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_state_button, _("Fader automation mode"));
 123         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_style_button, _("Fader automation type"));
 124
 125         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 126         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 127
 128         gain_automation_state_button.set_size_request(15, 15);
 129         gain_automation_style_button.set_size_request(15, 15);
 130
 131         fader_vbox = manage (new Gtk::VBox());
 132         fader_vbox->set_spacing (0);
 133         fader_vbox->pack_start (*gain_slider, false, false, 0);
 134
 135         hbox.set_spacing (0);
 136         hbox.pack_start (*fader_vbox, false, false, 2);
 137
 138         set_width(Narrow);
 139
 140         Route* r;
 141
 142         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 143                 /*
 144                    if we don't have a route (if we're the click),
 145                    pack some route-dependent stuff.
 146                 */
 147
 148                 gain_display_box.pack_end (peak_display_frame,  Gtk::PACK_SHRINK);
 149
 150                 hbox.pack_start (meter_packer, true, false);
 151
 152                 using namespace Menu_Helpers;
 153
 154                 gain_astate_menu.items().push_back (MenuElem (_("Off"),
 155                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Off)));
 156                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 157                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Play)));
 158                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 159                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Write)));
 160                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 161                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Touch)));
 162
 163                 gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 164                 gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 165
 166                 gain_astate_menu.set_name ("ArdourContextMenu");
 167                 gain_astyle_menu.set_name ("ArdourContextMenu");
 168
 169                 gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
 170                 gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
 171
 172                 r->gain_automation_curve().automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
 173                 r->gain_automation_curve().automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
 174                 fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 175
 176                 gain_automation_state_changed ();
 177         }
 178
 179
 180         set_spacing (4);
 181
 182         pack_start (gain_display_box,  Gtk::PACK_SHRINK);
 183         pack_start (hbox,  Gtk::PACK_SHRINK);
 184
 185         _io->gain_changed.connect (mem_fun(*this, &GainMeter::gain_changed));
 186
 187         meter_metric_area.signal_expose_event().connect (mem_fun(*this, &GainMeter::meter_metrics_expose));
 188         gain_adjustment.signal_value_changed().connect (mem_fun(*this, &GainMeter::gain_adjusted));
 189         peak_display.signal_button_release_event().connect (mem_fun(*this, &GainMeter::peak_button_release));
 190
 191         Config->ParameterChanged.connect (mem_fun (*this, &GainMeter::parameter_changed));
 192
 193         gain_changed (0);
 194         update_gain_sensitive ();
 195
 196         ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
 197         ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
 198 }
 199
 200 void
 201 GainMeter::set_width (Width w)
 202 {
 203         switch (w) {
 204         case Wide:
 205                 peak_display_frame.show_all();
 206                 break;
 207         case Narrow:
 208                 peak_display_frame.hide_all();
 209                 break;
 210         }
 211
 212         _width = w;
 213         setup_meters ();
 214 }
 215
 216 Glib::RefPtr<Gdk::Pixmap>
 217 GainMeter::render_metrics (Gtk::Widget& w)
 218 {
 219         Glib::RefPtr<Gdk::Window> win (w.get_window());
 220         Glib::RefPtr<Gdk::GC> fg_gc (w.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 221         Glib::RefPtr<Gdk::GC> bg_gc (w.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 222         gint x, y, width, height, depth;
 223         int  db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
 224         char buf[32];
 225
 226         win->get_geometry (x, y, width, height, depth);
 227
 228         Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (win, width, height);
 229
 230         metric_pixmaps[w.get_name()] = pixmap;
 231
 232         pixmap->draw_rectangle (bg_gc, true, 0, 0, width, height);
 233
 234         Glib::RefPtr<Pango::Layout> layout = w.create_pango_layout("");
 235
 236         for (uint32_t i = 0; i < sizeof (db_points)/sizeof (db_points[0]); ++i) {
 237
 238                 float fraction = log_meter (db_points[i]);
 239                 gint pos = height - (gint) floor (height * fraction);
 240
 241                 snprintf (buf, sizeof (buf), "%d", abs (db_points[i]));
 242
 243                 layout->set_text (buf);
 244
 245                 /* we want logical extents, not ink extents here */
 246
 247                 int width, height;
 248                 layout->get_pixel_size (width, height);
 249
 250                 pixmap->draw_line (fg_gc, 0, pos, 4, pos);
 251                 pixmap->draw_layout (fg_gc, 6, pos - (height/2), layout);
 252         }
 253
 254         return pixmap;
 255 }
 256
 257 gint
 258 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 259 {
 260         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 261         Glib::RefPtr<Gdk::GC> fg_gc (meter_metric_area.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 262         Glib::RefPtr<Gdk::GC> bg_gc (meter_metric_area.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 263         GdkRectangle base_rect;
 264         GdkRectangle draw_rect;
 265         gint x, y, width, height, depth;
 266
 267         win->get_geometry (x, y, width, height, depth);
 268
 269         base_rect.width = width;
 270         base_rect.height = height;
 271         base_rect.x = 0;
 272         base_rect.y = 0;
 273
 274         Glib::RefPtr<Gdk::Pixmap> pixmap;
 275         std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
 276
 277         if (i == metric_pixmaps.end()) {
 278                 pixmap = render_metrics (meter_metric_area);
 279         } else {
 280                 pixmap = i->second;
 281         }
 282
 283         gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
 284         win->draw_rectangle (bg_gc, true, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 285         win->draw_drawable (bg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 286
 287         return true;
 288 }
 289
 290 GainMeter::~GainMeter ()
 291 {
 292         if (meter_menu) {
 293                 delete meter_menu;
 294         }
 295
 296         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
 297                 if ((*i).meter) {
 298                         delete (*i).meter;
 299                 }
 300         }
 301 }
 302
 303 void
 304 GainMeter::update_meters ()
 305 {
 306         vector<MeterInfo>::iterator i;
 307         uint32_t n;
 308         float peak;
 309         char buf[32];
 310
 311         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 312                 if ((*i).packed) {
 313                         peak = _io->peak_input_power (n);
 314
 315                         (*i).meter->set (log_meter (peak), peak);
 316
 317                         if (peak > max_peak) {
 318                 max_peak = peak;
 319                 /* set peak display */
 320                                 if (max_peak <= -200.0f) {
 321                                         peak_display_label.set_text (_("-inf"));
 322                                 } else {
 323                                         snprintf (buf, sizeof(buf), "%.1f", max_peak);
 324                                         peak_display_label.set_text (buf);
 325                                 }
 326
 327                                 if (max_peak >= 0.0f) {
 328                                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 329                                 }
 330                         }
 331                 }
 332         }
 333 }
 334
 335 void
 336 GainMeter::parameter_changed(const char* parameter_name)
 337 {
 338 #define PARAM_IS(x) (!strcmp (parameter_name, (x)))
 339
 340         ENSURE_GUI_THREAD (bind (mem_fun(*this, &GainMeter::parameter_changed), parameter_name));
 341
 342         if (PARAM_IS ("meter-hold")) {
 343
 344                 vector<MeterInfo>::iterator i;
 345                 uint32_t n;
 346
 347                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 348
 349                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 350                 }
 351         }
 352
 353 #undef PARAM_IS
 354 }
 355
 356 void
 357 GainMeter::hide_all_meters ()
 358 {
 359         bool remove_metric_area = false;
 360
 361         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 362                 if ((*i).packed) {
 363                         remove_metric_area = true;
 364                         meter_packer.remove (*((*i).meter));
 365                         (*i).packed = false;
 366                 }
 367         }
 368
 369         if (remove_metric_area) {
 370                 if (meter_metric_area.get_parent()) {
 371                         meter_packer.remove (meter_metric_area);
 372                 }
 373         }
 374 }
 375
 376 void
 377 GainMeter::setup_meters ()
 378 {
 379         uint32_t nmeters = _io->n_outputs();
 380         guint16 width;
 381
 382         hide_all_meters ();
 383
 384         Route* r;
 385
 386         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 387
 388                 switch (r->meter_point()) {
 389                 case MeterPreFader:
 390                 case MeterInput:
 391                         nmeters = r->n_inputs();
 392                         break;
 393                 case MeterPostFader:
 394                         nmeters = r->n_outputs();
 395                         break;
 396                 }
 397
 398         } else {
 399
 400                 nmeters = _io->n_outputs();
 401
 402         }
 403
 404         if (nmeters == 0) {
 405                 return;
 406         }
 407
 408         if (nmeters <= 2) {
 409                 width = regular_meter_width;
 410         } else {
 411                 width = thin_meter_width;
 412         }
 413
 414         while (meters.size() < nmeters) {
 415                 meters.push_back (MeterInfo());
 416         }
 417
 418         for (uint32_t n = 0; n < nmeters; ++n) {
 419                 if (meters[n].width != width) {
 420                         delete meters[n].meter;
 421                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, FastMeter::Vertical);
 422                         meters[n].width = width;
 423
 424                         meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
 425                         meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
 426                 }
 427
 428                 meter_packer.pack_start (*meters[n].meter, Gtk::PACK_SHRINK);
 429                 meters[n].meter->show_all ();
 430                 meters[n].packed = true;
 431         }
 432
 433         if (_width == Wide) {
 434                 meter_packer.pack_start (meter_metric_area, Gtk::PACK_SHRINK);
 435                 meter_metric_area.show_all ();
 436         }
 437 }
 438
 439 gint
 440 GainMeter::peak_button_release (GdkEventButton* ev)
 441 {
 442         /* reset peak label */
 443
 444         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control|Keyboard::Shift)) {
 445                 ResetAllPeakDisplays ();
 446         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 447                 Route* r;
 448                 if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 449                         ResetGroupPeakDisplays (r->mix_group());
 450                 }
 451         } else {
 452                 reset_peak_display ();
 453         }
 454         return TRUE;
 455 }
 456
 457 void
 458 GainMeter::reset_peak_display ()
 459 {
 460         max_peak = minus_infinity();
 461         peak_display_label.set_text (_("-Inf"));
 462         peak_display.set_name ("MixerStripPeakDisplay");
 463 }
 464
 465 void
 466 GainMeter::reset_group_peak_display (RouteGroup* group)
 467 {
 468         Route* r;
 469         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 470                 if (group == r->mix_group()) {
 471                         reset_peak_display ();
 472                 }
 473         }
 474 }
 475
 476 gint
 477 GainMeter::meter_button_release (GdkEventButton* ev, uint32_t which)
 478 {
 479         switch (ev->button) {
 480         case 1:
 481                 meters[which].meter->clear();
 482                 max_peak = minus_infinity();
 483                 peak_display_label.set_text (_("-inf"));
 484                 peak_display.set_name ("MixerStripPeakDisplay");
 485                 break;
 486
 487         case 3:
 488                 // popup_meter_menu (ev);
 489                 break;
 490         };
 491
 492         return TRUE;
 493 }
 494
 495 void
 496 GainMeter::popup_meter_menu (GdkEventButton *ev)
 497 {
 498         using namespace Menu_Helpers;
 499
 500         if (meter_menu == 0) {
 501                 meter_menu = new Gtk::Menu;
 502                 MenuList& items = meter_menu->items();
 503
 504                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 505                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 506                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 507                 items.push_back (SeparatorElem());
 508                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 509                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 510                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 511         }
 512
 513         meter_menu->popup (1, ev->time);
 514 }
 515
 516 void
 517 GainMeter::_gain_printer (char buf[32], Gtk::Adjustment& adj, void *arg)
 518 {
 519         static_cast<GainMeter *>(arg)->gain_printer (buf, adj);
 520 }
 521
 522 void
 523 GainMeter::gain_printer (char buf[32], Gtk::Adjustment& adj)
 524 {
 525         float v = adj.get_value();
 526
 527         if (v == 0.0) {
 528                 strcpy (buf, _("-inf"));
 529         } else {
 530                 snprintf (buf, 32, "%.1f", coefficient_to_dB (slider_position_to_gain (v)));
 531         }
 532 }
 533
 534 void
 535 GainMeter::gain_adjusted ()
 536 {
 537         if (!ignore_toggle) {
 538                 _io->set_gain (slider_position_to_gain (gain_adjustment.get_value()), this);
 539         }
 540 }
 541
 542 void
 543 GainMeter::effective_gain_display ()
 544 {
 545         gfloat value = gain_to_slider_position (_io->effective_gain());
 546
 547         if (gain_adjustment.get_value() != value) {
 548                 ignore_toggle = true;
 549                 gain_adjustment.set_value (value);
 550                 ignore_toggle = false;
 551         }
 552 }
 553
 554 void
 555 GainMeter::gain_changed (void *src)
 556 {
 557         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &GainMeter::effective_gain_display));
 558 }
 559
 560 void
 561 GainMeter::set_meter_strip_name (const char * name)
 562 {
 563         meter_metric_area.set_name (name);
 564 }
 565
 566 void
 567 GainMeter::set_fader_name (const char * name)
 568 {
 569         gain_slider->set_name (name);
 570 }
 571
 572 void
 573 GainMeter::update_gain_sensitive ()
 574 {
 575         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io->gain_automation_state() & Play));
 576 }
 577
 578
 579 static MeterPoint
 580 next_meter_point (MeterPoint mp)
 581 {
 582         switch (mp) {
 583         case MeterInput:
 584                 return MeterPreFader;
 585                 break;
 586
 587         case MeterPreFader:
 588                 return MeterPostFader;
 589                 break;
 590
 591         case MeterPostFader:
 592                 return MeterInput;
 593                 break;
 594         }
 595         /*NOTREACHED*/
 596         return MeterInput;
 597 }
 598
 599 gint
 600 GainMeter::meter_press(GdkEventButton* ev)
 601 {
 602         Route* _route;
 603
 604         wait_for_release = false;
 605
 606         if ((_route = dynamic_cast<Route*>(_io.get())) == 0) {
 607                 return FALSE;
 608         }
 609
 610         if (!ignore_toggle) {
 611
 612                 if (Keyboard::is_context_menu_event (ev)) {
 613
 614                         // no menu at this time.
 615
 616                 } else {
 617
 618                         if (ev->button == 2) {
 619
 620                                 // ctrl-button2 click is the midi binding click
 621                                 // button2-click is "momentary"
 622
 623                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control))) {
 624                                         wait_for_release = true;
 625                                         old_meter_point = _route->meter_point ();
 626                                 }
 627                         }
 628
 629                         if (ev->button == 1 || ev->button == 2) {
 630
 631                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Shift))) {
 632
 633                                         /* ctrl-shift-click applies change to all routes */
 634
 635                                         _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
 636
 637                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 638
 639                                         /* ctrl-click: solo mix group.
 640                                            ctrl-button2 is MIDI learn.
 641                                         */
 642
 643                                         if (ev->button == 1) {
 644                                                 set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 645                                         }
 646
 647                                 } else {
 648
 649                                         /* click: solo this route */
 650
 651                                         _route->set_meter_point (next_meter_point (_route->meter_point()), this);
 652                                 }
 653                         }
 654                 }
 655         }
 656
 657         return true;
 658
 659 }
 660
 661 gint
 662 GainMeter::meter_release(GdkEventButton* ev)
 663 {
 664
 665         if(!ignore_toggle){
 666                 if (wait_for_release){
 667                         wait_for_release = false;
 668                         set_meter_point (*(dynamic_cast<Route*>(_io.get())), old_meter_point);
 669                 }
 670         }
 671         return true;
 672 }
 673
 674 void
 675 GainMeter::set_meter_point (Route& route, MeterPoint mp)
 676 {
 677         route.set_meter_point (mp, this);
 678 }
 679
 680 void
 681 GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
 682 {
 683         RouteGroup* mix_group;
 684
 685         if((mix_group = route.mix_group()) != 0){
 686                 mix_group->apply (&Route::set_meter_point, mp, this);
 687         } else {
 688                 route.set_meter_point (mp, this);
 689         }
 690 }
 691
 692 void
 693 GainMeter::meter_point_clicked ()
 694 {
 695         Route* r;
 696
 697         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 698
 699         }
 700 }
 701
 702 gint
 703 GainMeter::start_gain_touch (GdkEventButton* ev)
 704 {
 705         _io->start_gain_touch ();
 706         return FALSE;
 707 }
 708
 709 gint
 710 GainMeter::end_gain_touch (GdkEventButton* ev)
 711 {
 712         _io->end_gain_touch ();
 713         return FALSE;
 714 }
 715
 716 gint
 717 GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
 718 {
 719         if (ev->type == GDK_BUTTON_RELEASE) {
 720                 return TRUE;
 721         }
 722
 723         switch (ev->button) {
 724                 case 1:
 725                         gain_astate_menu.popup (1, ev->time);
 726                         break;
 727                 default:
 728                         break;
 729         }
 730
 731         return TRUE;
 732 }
 733
 734 gint
 735 GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
 736 {
 737         if (ev->type == GDK_BUTTON_RELEASE) {
 738                 return TRUE;
 739         }
 740
 741         switch (ev->button) {
 742         case 1:
 743                 gain_astyle_menu.popup (1, ev->time);
 744                 break;
 745         default:
 746                 break;
 747         }
 748         return TRUE;
 749 }
 750
 751 string
 752 GainMeter::astate_string (AutoState state)
 753 {
 754         return _astate_string (state, false);
 755 }
 756
 757 string
 758 GainMeter::short_astate_string (AutoState state)
 759 {
 760         return _astate_string (state, true);
 761 }
 762
 763 string
 764 GainMeter::_astate_string (AutoState state, bool shrt)
 765 {
 766         string sstr;
 767
 768         switch (state) {
 769         case Off:
 770                 sstr = (shrt ? "O" : _("O"));
 771                 break;
 772         case Play:
 773                 sstr = (shrt ? "P" : _("P"));
 774                 break;
 775         case Touch:
 776                 sstr = (shrt ? "T" : _("T"));
 777                 break;
 778         case Write:
 779                 sstr = (shrt ? "W" : _("W"));
 780                 break;
 781         }
 782
 783         return sstr;
 784 }
 785
 786 string
 787 GainMeter::astyle_string (AutoStyle style)
 788 {
 789         return _astyle_string (style, false);
 790 }
 791
 792 string
 793 GainMeter::short_astyle_string (AutoStyle style)
 794 {
 795         return _astyle_string (style, true);
 796 }
 797
 798 string
 799 GainMeter::_astyle_string (AutoStyle style, bool shrt)
 800 {
 801         if (style & Trim) {
 802                 return _("Trim");
 803         } else {
 804                 /* XXX it might different in different languages */
 805
 806                 return (shrt ? _("Abs") : _("Abs"));
 807         }
 808 }
 809
 810 void
 811 GainMeter::gain_automation_style_changed ()
 812 {
 813   // Route* _route = dynamic_cast<Route*>(&_io);
 814         switch (_width) {
 815         case Wide:
 816                 gain_automation_style_button.set_label (astyle_string(_io->gain_automation_curve().automation_style()));
 817                 break;
 818         case Narrow:
 819                 gain_automation_style_button.set_label  (short_astyle_string(_io->gain_automation_curve().automation_style()));
 820                 break;
 821         }
 822 }
 823
 824 void
 825 GainMeter::gain_automation_state_changed ()
 826 {
 827         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
 828         //Route* _route = dynamic_cast<Route*>(&_io);
 829
 830         bool x;
 831
 832         switch (_width) {
 833         case Wide:
 834                 gain_automation_state_button.set_label (astate_string(_io->gain_automation_curve().automation_state()));
 835                 break;
 836         case Narrow:
 837                 gain_automation_state_button.set_label (short_astate_string(_io->gain_automation_curve().automation_state()));
 838                 break;
 839         }
 840
 841         x = (_io->gain_automation_state() != Off);
 842
 843         if (gain_automation_state_button.get_active() != x) {
 844                 ignore_toggle = true;
 845                 gain_automation_state_button.set_active (x);
 846                 ignore_toggle = false;
 847         }
 848
 849         update_gain_sensitive ();
 850
 851         /* start watching automation so that things move */
 852
 853         gain_watching.disconnect();
 854
 855         if (x) {
 856                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
 857         }
 858 }