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 Gtkmm2ext;
  51 using namespace Gtk;
  52 using namespace sigc;
  53 using namespace std;
  54
  55 sigc::signal<void> GainMeter::ResetAllPeakDisplays;
  56 sigc::signal<void,RouteGroup*> GainMeter::ResetGroupPeakDisplays;
  57 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider;
  58 Glib::RefPtr<Gdk::Pixbuf> GainMeter::rail;
  59 map<string,Glib::RefPtr<Gdk::Pixmap> > GainMeter::metric_pixmaps;
  60
  61 int
  62 GainMeter::setup_slider_pix ()
  63 {
  64         string path = ARDOUR::find_data_file("vslider02_slider.xpm", "pixmaps");
  65         if (path.empty()) {
  66                 error << _("cannot find images for fader slider") << endmsg;
  67                 return -1;
  68         }
  69         slider = Gdk::Pixbuf::create_from_file (path);
  70
  71         path = ARDOUR::find_data_file("vslider02_rail.xpm", "pixmaps");
  72         if (path.empty()) {
  73                 error << _("cannot find images for fader rail") << endmsg;
  74                 return -1;
  75         }
  76         rail = Gdk::Pixbuf::create_from_file (path);
  77
  78         return 0;
  79 }
  80
  81 GainMeter::GainMeter (IO& io, Session& s)
  82         : _io (io),
  83           _session (s),
  84           gain_slider (0),
  85           // 0.781787 is the value needed for gain to be set to 0.
  86           gain_adjustment (0.781787, 0.0, 1.0, 0.01, 0.1),
  87           gain_display (&gain_adjustment, "MixerStripGainDisplay"),
  88           gain_automation_style_button (""),
  89           gain_automation_state_button ("")
  90
  91 {
  92         if (slider == 0) {
  93                 setup_slider_pix ();
  94         }
  95
  96         ignore_toggle = false;
  97         meter_menu = 0;
  98
  99         gain_slider = manage (new VSliderController (slider, rail,
 100                                                      &gain_adjustment,
 101                                                      & _io.midi_gain_control(),
 102                                                      false));
 103
 104         gain_slider->signal_button_press_event().connect (mem_fun(*this, &GainMeter::start_gain_touch));
 105         gain_slider->signal_button_release_event().connect (mem_fun(*this, &GainMeter::end_gain_touch));
 106         gain_slider->set_name ("MixerGainMeter");
 107
 108         if (_session.midi_port()) {
 109                 _io.set_midi_to_gain_function (slider_position_to_gain);
 110                 _io.set_gain_to_midi_function (gain_to_slider_position);
 111         }
 112
 113         gain_display.set_print_func (_gain_printer, this);
 114
 115         gain_display_box.set_spacing (2);
 116         set_size_request_to_display_given_text (gain_display_frame, "-86.g", 2, 6); /* note the descender */
 117         gain_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 118         gain_display_frame.set_name ("BaseFrame");
 119         gain_display_frame.add (gain_display);
 120         gain_display_box.pack_start (gain_display_frame,  Gtk::PACK_SHRINK);
 121
 122         peak_display.set_name ("MixerStripPeakDisplay");
 123         peak_display.add (peak_display_label);
 124         set_size_request_to_display_given_text (peak_display_frame, "-86.g", 2, 6); /* note the descender */
 125         peak_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 126         peak_display_frame.set_name ("BaseFrame");
 127         peak_display_frame.add (peak_display);
 128         max_peak = minus_infinity();
 129         peak_display_label.set_text (_("-inf"));
 130
 131         meter_metric_area.set_size_request (25, -1);
 132         meter_metric_area.set_name ("MeterMetricsStrip");
 133
 134         meter_packer.set_spacing (2);
 135
 136         gain_automation_style_button.set_name ("MixerAutomationModeButton");
 137         gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
 138
 139         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_state_button, _("Fader automation mode"));
 140         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_style_button, _("Fader automation type"));
 141
 142         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 143         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 144
 145         gain_automation_state_button.set_size_request(15, 15);
 146         gain_automation_style_button.set_size_request(15, 15);
 147
 148         fader_vbox = manage (new Gtk::VBox());
 149         fader_vbox->set_spacing (0);
 150         fader_vbox->pack_start (*gain_slider, false, false, 0);
 151
 152         hbox.set_spacing (0);
 153         hbox.pack_start (*fader_vbox, false, false, 2);
 154
 155         Route* r;
 156
 157         if ((r = dynamic_cast<Route*> (&_io)) != 0) {
 158                 /*
 159                    if we don't have a route (if we're the click),
 160                    pack some route-dependent stuff.
 161                 */
 162
 163                 gain_display_box.pack_end (peak_display_frame,  Gtk::PACK_SHRINK);
 164
 165                 hbox.pack_start (meter_packer, true, false);
 166
 167                 using namespace Menu_Helpers;
 168
 169                 gain_astate_menu.items().push_back (MenuElem (_("Off"),
 170                                                       bind (mem_fun (&_io, &IO::set_gain_automation_state), (AutoState) Off)));
 171                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 172                                                       bind (mem_fun (&_io, &IO::set_gain_automation_state), (AutoState) Play)));
 173                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 174                                                       bind (mem_fun (&_io, &IO::set_gain_automation_state), (AutoState) Write)));
 175                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 176                                                       bind (mem_fun (&_io, &IO::set_gain_automation_state), (AutoState) Touch)));
 177
 178                 gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 179                 gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 180
 181                 gain_astate_menu.set_name ("ArdourContextMenu");
 182                 gain_astyle_menu.set_name ("ArdourContextMenu");
 183
 184                 gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
 185                 gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
 186
 187                 r->gain_automation_curve().automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
 188                 r->gain_automation_curve().automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
 189                 fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 190
 191                 gain_automation_state_changed ();
 192         }
 193
 194
 195         set_spacing (4);
 196
 197         pack_start (gain_display_box,  Gtk::PACK_SHRINK);
 198         pack_start (hbox,  Gtk::PACK_SHRINK);
 199
 200         _io.gain_changed.connect (mem_fun(*this, &GainMeter::gain_changed));
 201
 202         meter_metric_area.signal_expose_event().connect (mem_fun(*this, &GainMeter::meter_metrics_expose));
 203         gain_adjustment.signal_value_changed().connect (mem_fun(*this, &GainMeter::gain_adjusted));
 204         peak_display.signal_button_release_event().connect (mem_fun(*this, &GainMeter::peak_button_release));
 205
 206         _session.MeterHoldChanged.connect (mem_fun(*this, &GainMeter::meter_hold_changed));
 207
 208         gain_changed (0);
 209         update_gain_sensitive ();
 210
 211         ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
 212         ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
 213 }
 214
 215 void
 216 GainMeter::set_width (Width w)
 217 {
 218         switch (w) {
 219         case Wide:
 220                 peak_display_frame.show_all();
 221                 break;
 222         case Narrow:
 223                 peak_display_frame.hide_all();
 224                 break;
 225         }
 226
 227         _width = w;
 228         setup_meters ();
 229 }
 230
 231 Glib::RefPtr<Gdk::Pixmap>
 232 GainMeter::render_metrics (Gtk::Widget& w)
 233 {
 234         Glib::RefPtr<Gdk::Window> win (w.get_window());
 235         Glib::RefPtr<Gdk::GC> fg_gc (w.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 236         Glib::RefPtr<Gdk::GC> bg_gc (w.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 237         gint x, y, width, height, depth;
 238         int  db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
 239         char buf[32];
 240
 241         win->get_geometry (x, y, width, height, depth);
 242
 243         Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (win, width, height);
 244
 245         metric_pixmaps[w.get_name()] = pixmap;
 246
 247         pixmap->draw_rectangle (bg_gc, true, 0, 0, width, height);
 248
 249         Glib::RefPtr<Pango::Layout> layout = w.create_pango_layout("");
 250
 251         for (uint32_t i = 0; i < sizeof (db_points)/sizeof (db_points[0]); ++i) {
 252
 253                 float fraction = log_meter (db_points[i]);
 254                 gint pos = height - (gint) floor (height * fraction);
 255
 256                 snprintf (buf, sizeof (buf), "%d", abs (db_points[i]));
 257
 258                 layout->set_text (buf);
 259
 260                 /* we want logical extents, not ink extents here */
 261
 262                 int width, height;
 263                 layout->get_pixel_size (width, height);
 264
 265                 pixmap->draw_line (fg_gc, 0, pos, 4, pos);
 266                 pixmap->draw_layout (fg_gc, 6, pos - (height/2), layout);
 267         }
 268
 269         return pixmap;
 270 }
 271
 272 gint
 273 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 274 {
 275         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 276         Glib::RefPtr<Gdk::GC> fg_gc (meter_metric_area.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 277         Glib::RefPtr<Gdk::GC> bg_gc (meter_metric_area.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 278         GdkRectangle base_rect;
 279         GdkRectangle draw_rect;
 280         gint x, y, width, height, depth;
 281
 282         win->get_geometry (x, y, width, height, depth);
 283
 284         base_rect.width = width;
 285         base_rect.height = height;
 286         base_rect.x = 0;
 287         base_rect.y = 0;
 288
 289         Glib::RefPtr<Gdk::Pixmap> pixmap;
 290         std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
 291
 292         if (i == metric_pixmaps.end()) {
 293                 pixmap = render_metrics (meter_metric_area);
 294         } else {
 295                 pixmap = i->second;
 296         }
 297
 298         gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
 299         win->draw_rectangle (bg_gc, true, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 300         win->draw_drawable (bg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 301
 302         return true;
 303 }
 304
 305 GainMeter::~GainMeter ()
 306 {
 307         if (meter_menu) {
 308                 delete meter_menu;
 309         }
 310
 311         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
 312                 if ((*i).meter) {
 313                         delete (*i).meter;
 314                 }
 315         }
 316 }
 317
 318 void
 319 GainMeter::update_meters ()
 320 {
 321         vector<MeterInfo>::iterator i;
 322         uint32_t n;
 323         float peak;
 324         char buf[32];
 325
 326         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 327                 if ((*i).packed) {
 328                         peak = _io.peak_input_power (n);
 329
 330                         (*i).meter->set (log_meter (peak), peak);
 331
 332                         if (peak > max_peak) {
 333                                 max_peak = peak;
 334                                 /* set peak display */
 335                                 snprintf (buf, sizeof(buf), "%.1f", max_peak);
 336                                 peak_display_label.set_text (buf);
 337
 338                                 if (max_peak >= 0.0f) {
 339                                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 340                                 }
 341                         }
 342                 }
 343         }
 344 }
 345
 346 void
 347 GainMeter::meter_hold_changed()
 348 {
 349         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::meter_hold_changed));
 350
 351         vector<MeterInfo>::iterator i;
 352         uint32_t n;
 353
 354         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 355
 356                 (*i).meter->set_hold_count ((uint32_t) floor(_session.meter_hold()));
 357         }
 358 }
 359
 360 void
 361 GainMeter::hide_all_meters ()
 362 {
 363         bool remove_metric_area = false;
 364
 365         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 366                 if ((*i).packed) {
 367                         remove_metric_area = true;
 368                         meter_packer.remove (*((*i).meter));
 369                         (*i).packed = false;
 370                 }
 371         }
 372
 373         if (remove_metric_area) {
 374                 if (meter_metric_area.get_parent()) {
 375                         meter_packer.remove (meter_metric_area);
 376                 }
 377         }
 378 }
 379
 380 void
 381 GainMeter::setup_meters ()
 382 {
 383         uint32_t nmeters = _io.n_outputs();
 384         guint16 width;
 385
 386         hide_all_meters ();
 387
 388         Route* r;
 389
 390         if ((r = dynamic_cast<Route*> (&_io)) != 0) {
 391
 392                 switch (r->meter_point()) {
 393                 case MeterPreFader:
 394                 case MeterInput:
 395                         nmeters = r->n_inputs();
 396                         break;
 397                 case MeterPostFader:
 398                         nmeters = r->n_outputs();
 399                         break;
 400                 }
 401
 402         } else {
 403
 404                 nmeters = _io.n_outputs();
 405
 406         }
 407
 408         if (nmeters == 0) {
 409                 return;
 410         }
 411
 412         if (nmeters <= 2) {
 413                 width = regular_meter_width;
 414         } else {
 415                 width = thin_meter_width;
 416         }
 417
 418         while (meters.size() < nmeters) {
 419                 meters.push_back (MeterInfo());
 420         }
 421
 422         for (uint32_t n = 0; n < nmeters; ++n) {
 423                 if (meters[n].width != width) {
 424                         delete meters[n].meter;
 425                         meters[n].meter = new FastMeter ((uint32_t) floor (_session.meter_hold()), width, FastMeter::Vertical);
 426                         meters[n].width = width;
 427
 428                         meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
 429                         meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
 430                 }
 431
 432                 meter_packer.pack_start (*meters[n].meter, Gtk::PACK_SHRINK);
 433                 meters[n].meter->show_all ();
 434                 meters[n].packed = true;
 435         }
 436
 437         if (_width == Wide) {
 438                 meter_packer.pack_start (meter_metric_area, Gtk::PACK_SHRINK);
 439                 meter_metric_area.show_all ();
 440         }
 441 }
 442
 443 gint
 444 GainMeter::peak_button_release (GdkEventButton* ev)
 445 {
 446         /* reset peak label */
 447
 448         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control|Keyboard::Shift)) {
 449                 ResetAllPeakDisplays ();
 450         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 451                 Route* r;
 452                 if ((r = dynamic_cast<Route*> (&_io)) != 0) {
 453                         ResetGroupPeakDisplays (r->mix_group());
 454                 }
 455         } else {
 456                 reset_peak_display ();
 457         }
 458         return TRUE;
 459 }
 460
 461 void
 462 GainMeter::reset_peak_display ()
 463 {
 464         max_peak = minus_infinity();
 465         peak_display_label.set_text (_("-Inf"));
 466         peak_display.set_name ("Mixerstrippeakdisplay");
 467 }
 468
 469 void
 470 GainMeter::reset_group_peak_display (RouteGroup* group)
 471 {
 472         Route* r;
 473         if ((r = dynamic_cast<Route*> (&_io)) != 0) {
 474                 if (group == r->mix_group()) {
 475                         reset_peak_display ();
 476                 }
 477         }
 478 }
 479
 480 gint
 481 GainMeter::meter_button_release (GdkEventButton* ev, uint32_t which)
 482 {
 483         switch (ev->button) {
 484         case 1:
 485                 meters[which].meter->clear();
 486                 max_peak = minus_infinity();
 487                 peak_display_label.set_text (_("-inf"));
 488                 peak_display.set_name ("MixerStripPeakDisplay");
 489                 break;
 490
 491         case 3:
 492                 // popup_meter_menu (ev);
 493                 break;
 494         };
 495
 496         return TRUE;
 497 }
 498
 499 void
 500 GainMeter::popup_meter_menu (GdkEventButton *ev)
 501 {
 502         using namespace Menu_Helpers;
 503
 504         if (meter_menu == 0) {
 505                 meter_menu = new Gtk::Menu;
 506                 MenuList& items = meter_menu->items();
 507
 508                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 509                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 510                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 511                 items.push_back (SeparatorElem());
 512                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 513                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 514                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 515         }
 516
 517         meter_menu->popup (1, ev->time);
 518 }
 519
 520 void
 521 GainMeter::_gain_printer (char buf[32], Gtk::Adjustment& adj, void *arg)
 522 {
 523         static_cast<GainMeter *>(arg)->gain_printer (buf, adj);
 524 }
 525
 526 void
 527 GainMeter::gain_printer (char buf[32], Gtk::Adjustment& adj)
 528 {
 529         float v = adj.get_value();
 530
 531         if (v == 0.0) {
 532                 strcpy (buf, _("-inf"));
 533         } else {
 534                 snprintf (buf, 32, "%.1f", coefficient_to_dB (slider_position_to_gain (v)));
 535         }
 536 }
 537
 538 void
 539 GainMeter::gain_adjusted ()
 540 {
 541         if (!ignore_toggle) {
 542                 _io.set_gain (slider_position_to_gain (gain_adjustment.get_value()), this);
 543         }
 544 }
 545
 546 void
 547 GainMeter::effective_gain_display ()
 548 {
 549         gfloat value = gain_to_slider_position (_io.effective_gain());
 550
 551         if (gain_adjustment.get_value() != value) {
 552                 ignore_toggle = true;
 553                 gain_adjustment.set_value (value);
 554                 ignore_toggle = false;
 555         }
 556 }
 557
 558 void
 559 GainMeter::gain_changed (void *src)
 560 {
 561         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &GainMeter::effective_gain_display));
 562 }
 563
 564 void
 565 GainMeter::set_meter_strip_name (const char * name)
 566 {
 567         meter_metric_area.set_name (name);
 568 }
 569
 570 void
 571 GainMeter::set_fader_name (const char * name)
 572 {
 573         gain_slider->set_name (name);
 574 }
 575
 576 void
 577 GainMeter::update_gain_sensitive ()
 578 {
 579         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io.gain_automation_state() & Play));
 580 }
 581
 582
 583 static MeterPoint
 584 next_meter_point (MeterPoint mp)
 585 {
 586         switch (mp) {
 587         case MeterInput:
 588                 return MeterPreFader;
 589                 break;
 590
 591         case MeterPreFader:
 592                 return MeterPostFader;
 593                 break;
 594
 595         case MeterPostFader:
 596                 return MeterInput;
 597                 break;
 598         }
 599         /*NOTREACHED*/
 600         return MeterInput;
 601 }
 602
 603 gint
 604 GainMeter::meter_press(GdkEventButton* ev)
 605 {
 606         Route* _route;
 607
 608         wait_for_release = false;
 609
 610         if ((_route = dynamic_cast<Route*>(&_io)) == 0) {
 611                 return FALSE;
 612         }
 613
 614         if (!ignore_toggle) {
 615
 616                 if (Keyboard::is_context_menu_event (ev)) {
 617
 618                         // no menu at this time.
 619
 620                 } else {
 621
 622                         if (ev->button == 2) {
 623
 624                                 // ctrl-button2 click is the midi binding click
 625                                 // button2-click is "momentary"
 626
 627                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control))) {
 628                                         wait_for_release = true;
 629                                         old_meter_point = _route->meter_point ();
 630                                 }
 631                         }
 632
 633                         if (ev->button == 1 || ev->button == 2) {
 634
 635                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Shift))) {
 636
 637                                         /* ctrl-shift-click applies change to all routes */
 638
 639                                         _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
 640
 641                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 642
 643                                         /* ctrl-click: solo mix group.
 644                                            ctrl-button2 is MIDI learn.
 645                                         */
 646
 647                                         if (ev->button == 1) {
 648                                                 set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 649                                         }
 650
 651                                 } else {
 652
 653                                         /* click: solo this route */
 654
 655                                         _route->set_meter_point (next_meter_point (_route->meter_point()), this);
 656                                 }
 657                         }
 658                 }
 659         }
 660
 661         return true;
 662
 663 }
 664
 665 gint
 666 GainMeter::meter_release(GdkEventButton* ev)
 667 {
 668
 669         if(!ignore_toggle){
 670                 if (wait_for_release){
 671                         wait_for_release = false;
 672                         set_meter_point (*(dynamic_cast<Route*>(&_io)), old_meter_point);
 673                 }
 674         }
 675         return true;
 676 }
 677
 678 void
 679 GainMeter::set_meter_point (Route& route, MeterPoint mp)
 680 {
 681         route.set_meter_point (mp, this);
 682 }
 683
 684 void
 685 GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
 686 {
 687         RouteGroup* mix_group;
 688
 689         if((mix_group = route.mix_group()) != 0){
 690                 mix_group->apply (&Route::set_meter_point, mp, this);
 691         } else {
 692                 route.set_meter_point (mp, this);
 693         }
 694 }
 695
 696 void
 697 GainMeter::meter_point_clicked ()
 698 {
 699         Route* r;
 700
 701         if ((r = dynamic_cast<Route*> (&_io)) != 0) {
 702
 703         }
 704 }
 705
 706 gint
 707 GainMeter::start_gain_touch (GdkEventButton* ev)
 708 {
 709         _io.start_gain_touch ();
 710         return FALSE;
 711 }
 712
 713 gint
 714 GainMeter::end_gain_touch (GdkEventButton* ev)
 715 {
 716         _io.end_gain_touch ();
 717         return FALSE;
 718 }
 719
 720 gint
 721 GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
 722 {
 723         if (ev->type == GDK_BUTTON_RELEASE) {
 724                 return TRUE;
 725         }
 726
 727         switch (ev->button) {
 728                 case 1:
 729                         gain_astate_menu.popup (1, ev->time);
 730                         break;
 731                 default:
 732                         break;
 733         }
 734
 735         return TRUE;
 736 }
 737
 738 gint
 739 GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
 740 {
 741         if (ev->type == GDK_BUTTON_RELEASE) {
 742                 return TRUE;
 743         }
 744
 745         switch (ev->button) {
 746         case 1:
 747                 gain_astyle_menu.popup (1, ev->time);
 748                 break;
 749         default:
 750                 break;
 751         }
 752         return TRUE;
 753 }
 754
 755 string
 756 GainMeter::astate_string (AutoState state)
 757 {
 758         return _astate_string (state, false);
 759 }
 760
 761 string
 762 GainMeter::short_astate_string (AutoState state)
 763 {
 764         return _astate_string (state, true);
 765 }
 766
 767 string
 768 GainMeter::_astate_string (AutoState state, bool shrt)
 769 {
 770         string sstr;
 771
 772         switch (state) {
 773         case Off:
 774                 sstr = (shrt ? "O" : _("O"));
 775                 break;
 776         case Play:
 777                 sstr = (shrt ? "P" : _("P"));
 778                 break;
 779         case Touch:
 780                 sstr = (shrt ? "T" : _("T"));
 781                 break;
 782         case Write:
 783                 sstr = (shrt ? "W" : _("W"));
 784                 break;
 785         }
 786
 787         return sstr;
 788 }
 789
 790 string
 791 GainMeter::astyle_string (AutoStyle style)
 792 {
 793         return _astyle_string (style, false);
 794 }
 795
 796 string
 797 GainMeter::short_astyle_string (AutoStyle style)
 798 {
 799         return _astyle_string (style, true);
 800 }
 801
 802 string
 803 GainMeter::_astyle_string (AutoStyle style, bool shrt)
 804 {
 805         if (style & Trim) {
 806                 return _("Trim");
 807         } else {
 808                 /* XXX it might different in different languages */
 809
 810                 return (shrt ? _("Abs") : _("Abs"));
 811         }
 812 }
 813
 814 void
 815 GainMeter::gain_automation_style_changed ()
 816 {
 817   // Route* _route = dynamic_cast<Route*>(&_io);
 818         switch (_width) {
 819         case Wide:
 820                 gain_automation_style_button.set_label (astyle_string(_io.gain_automation_curve().automation_style()));
 821                 break;
 822         case Narrow:
 823                 gain_automation_style_button.set_label  (short_astyle_string(_io.gain_automation_curve().automation_style()));
 824                 break;
 825         }
 826 }
 827
 828 void
 829 GainMeter::gain_automation_state_changed ()
 830 {
 831         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
 832         //Route* _route = dynamic_cast<Route*>(&_io);
 833
 834         bool x;
 835
 836         switch (_width) {
 837         case Wide:
 838                 gain_automation_state_button.set_label (astate_string(_io.gain_automation_curve().automation_state()));
 839                 break;
 840         case Narrow:
 841                 gain_automation_state_button.set_label (short_astate_string(_io.gain_automation_curve().automation_state()));
 842                 break;
 843         }
 844
 845         x = (_io.gain_automation_state() != Off);
 846
 847         if (gain_automation_state_button.get_active() != x) {
 848                 ignore_toggle = true;
 849                 gain_automation_state_button.set_active (x);
 850                 ignore_toggle = false;
 851         }
 852
 853         update_gain_sensitive ();
 854
 855         /* start watching automation so that things move */
 856
 857         gain_watching.disconnect();
 858
 859         if (x) {
 860                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
 861         }
 862 }