gtk2_ardour/gain_meter.cc

   1 /*
   2   Copyright (C) 2002 Paul Davis
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program; if not, write to the Free Software
  16   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18   $Id$
  19 */
  20
  21 #include <limits.h>
  22
  23 #include <ardour/io.h>
  24 #include <ardour/route.h>
  25 #include <ardour/route_group.h>
  26 #include <ardour/session.h>
  27 #include <ardour/session_route.h>
  28 #include <ardour/dB.h>
  29
  30 #include <gtkmm2ext/utils.h>
  31 #include <gtkmm2ext/fastmeter.h>
  32 #include <gtkmm2ext/stop_signal.h>
  33 #include <gtkmm2ext/barcontroller.h>
  34 #include <midi++/manager.h>
  35 #include <pbd/fastlog.h>
  36
  37 #include "ardour_ui.h"
  38 #include "gain_meter.h"
  39 #include "utils.h"
  40 #include "logmeter.h"
  41 #include "gui_thread.h"
  42 #include "keyboard.h"
  43
  44 #include <ardour/session.h>
  45 #include <ardour/route.h>
  46
  47 #include "i18n.h"
  48
  49 using namespace ARDOUR;
  50 using namespace PBD;
  51 using namespace Gtkmm2ext;
  52 using namespace Gtk;
  53 using namespace sigc;
  54 using namespace std;
  55
  56 sigc::signal<void> GainMeter::ResetAllPeakDisplays;
  57 sigc::signal<void,RouteGroup*> GainMeter::ResetGroupPeakDisplays;
  58 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider;
  59 Glib::RefPtr<Gdk::Pixbuf> GainMeter::rail;
  60 map<string,Glib::RefPtr<Gdk::Pixmap> > GainMeter::metric_pixmaps;
  61
  62 int
  63 GainMeter::setup_slider_pix ()
  64 {
  65         string path = ARDOUR::find_data_file("vslider02_slider.xpm", "pixmaps");
  66         if (path.empty()) {
  67                 error << _("cannot find images for fader slider") << endmsg;
  68                 return -1;
  69         }
  70         slider = Gdk::Pixbuf::create_from_file (path);
  71
  72         path = ARDOUR::find_data_file("vslider02_rail.xpm", "pixmaps");
  73         if (path.empty()) {
  74                 error << _("cannot find images for fader rail") << endmsg;
  75                 return -1;
  76         }
  77         rail = Gdk::Pixbuf::create_from_file (path);
  78
  79         return 0;
  80 }
  81
  82 GainMeter::GainMeter (boost::shared_ptr<IO> io, Session& s)
  83         : _io (io),
  84           _session (s),
  85           gain_slider (0),
  86           // 0.781787 is the value needed for gain to be set to 0.
  87           gain_adjustment (0.781787, 0.0, 1.0, 0.01, 0.1),
  88           gain_display (&gain_adjustment, "MixerStripGainDisplay"),
  89           gain_automation_style_button (""),
  90           gain_automation_state_button ("")
  91
  92 {
  93         if (slider == 0) {
  94                 setup_slider_pix ();
  95         }
  96
  97         ignore_toggle = false;
  98         meter_menu = 0;
  99
 100         gain_slider = manage (new VSliderController (slider, rail,
 101                                                      &gain_adjustment,
 102                                                      _io->gain_control(),
 103                                                      false));
 104
 105         gain_slider->signal_button_press_event().connect (mem_fun(*this, &GainMeter::start_gain_touch));
 106         gain_slider->signal_button_release_event().connect (mem_fun(*this, &GainMeter::end_gain_touch));
 107         gain_slider->set_name ("MixerGainMeter");
 108
 109         gain_display.set_print_func (_gain_printer, this);
 110
 111         gain_display_box.set_spacing (2);
 112         set_size_request_to_display_given_text (gain_display_frame, "-86.g", 2, 6); /* note the descender */
 113         gain_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 114         gain_display_frame.set_name ("BaseFrame");
 115         gain_display_frame.add (gain_display);
 116         gain_display_box.pack_start (gain_display_frame,  Gtk::PACK_SHRINK);
 117
 118         peak_display.set_name ("MixerStripPeakDisplay");
 119         peak_display.add (peak_display_label);
 120         set_size_request_to_display_given_text (peak_display_frame, "-86.g", 2, 6); /* note the descender */
 121         peak_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 122         peak_display_frame.set_name ("BaseFrame");
 123         peak_display_frame.add (peak_display);
 124         max_peak = minus_infinity();
 125         peak_display_label.set_text (_("-inf"));
 126
 127         meter_metric_area.set_size_request (25, -1);
 128         meter_metric_area.set_name ("MeterMetricsStrip");
 129
 130         meter_packer.set_spacing (2);
 131
 132         gain_automation_style_button.set_name ("MixerAutomationModeButton");
 133         gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
 134
 135         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_state_button, _("Fader automation mode"));
 136         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_style_button, _("Fader automation type"));
 137
 138         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 139         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 140
 141         gain_automation_state_button.set_size_request(15, 15);
 142         gain_automation_style_button.set_size_request(15, 15);
 143
 144         fader_vbox = manage (new Gtk::VBox());
 145         fader_vbox->set_spacing (0);
 146         fader_vbox->pack_start (*gain_slider, false, false, 0);
 147
 148         hbox.set_spacing (0);
 149         hbox.pack_start (*fader_vbox, false, false, 2);
 150
 151         set_width(Narrow);
 152
 153         Route* r;
 154
 155         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 156                 /*
 157                    if we don't have a route (if we're the click),
 158                    pack some route-dependent stuff.
 159                 */
 160
 161                 gain_display_box.pack_end (peak_display_frame,  Gtk::PACK_SHRINK);
 162
 163                 hbox.pack_start (meter_packer, true, false);
 164
 165                 using namespace Menu_Helpers;
 166
 167                 gain_astate_menu.items().push_back (MenuElem (_("Off"),
 168                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Off)));
 169                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 170                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Play)));
 171                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 172                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Write)));
 173                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 174                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Touch)));
 175
 176                 gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 177                 gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 178
 179                 gain_astate_menu.set_name ("ArdourContextMenu");
 180                 gain_astyle_menu.set_name ("ArdourContextMenu");
 181
 182                 gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
 183                 gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
 184
 185                 r->gain_automation_curve().automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
 186                 r->gain_automation_curve().automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
 187                 fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 188
 189                 gain_automation_state_changed ();
 190         }
 191
 192
 193         set_spacing (4);
 194
 195         pack_start (gain_display_box,  Gtk::PACK_SHRINK);
 196         pack_start (hbox,  Gtk::PACK_SHRINK);
 197
 198         _io->gain_changed.connect (mem_fun(*this, &GainMeter::gain_changed));
 199
 200         meter_metric_area.signal_expose_event().connect (mem_fun(*this, &GainMeter::meter_metrics_expose));
 201         gain_adjustment.signal_value_changed().connect (mem_fun(*this, &GainMeter::gain_adjusted));
 202         peak_display.signal_button_release_event().connect (mem_fun(*this, &GainMeter::peak_button_release));
 203
 204         _session.MeterHoldChanged.connect (mem_fun(*this, &GainMeter::meter_hold_changed));
 205
 206         gain_changed (0);
 207         update_gain_sensitive ();
 208
 209         ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
 210         ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
 211 }
 212
 213 void
 214 GainMeter::set_width (Width w)
 215 {
 216         switch (w) {
 217         case Wide:
 218                 peak_display_frame.show_all();
 219                 break;
 220         case Narrow:
 221                 peak_display_frame.hide_all();
 222                 break;
 223         }
 224
 225         _width = w;
 226         setup_meters ();
 227 }
 228
 229 Glib::RefPtr<Gdk::Pixmap>
 230 GainMeter::render_metrics (Gtk::Widget& w)
 231 {
 232         Glib::RefPtr<Gdk::Window> win (w.get_window());
 233         Glib::RefPtr<Gdk::GC> fg_gc (w.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 234         Glib::RefPtr<Gdk::GC> bg_gc (w.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 235         gint x, y, width, height, depth;
 236         int  db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
 237         char buf[32];
 238
 239         win->get_geometry (x, y, width, height, depth);
 240
 241         Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (win, width, height);
 242
 243         metric_pixmaps[w.get_name()] = pixmap;
 244
 245         pixmap->draw_rectangle (bg_gc, true, 0, 0, width, height);
 246
 247         Glib::RefPtr<Pango::Layout> layout = w.create_pango_layout("");
 248
 249         for (uint32_t i = 0; i < sizeof (db_points)/sizeof (db_points[0]); ++i) {
 250
 251                 float fraction = log_meter (db_points[i]);
 252                 gint pos = height - (gint) floor (height * fraction);
 253
 254                 snprintf (buf, sizeof (buf), "%d", abs (db_points[i]));
 255
 256                 layout->set_text (buf);
 257
 258                 /* we want logical extents, not ink extents here */
 259
 260                 int width, height;
 261                 layout->get_pixel_size (width, height);
 262
 263                 pixmap->draw_line (fg_gc, 0, pos, 4, pos);
 264                 pixmap->draw_layout (fg_gc, 6, pos - (height/2), layout);
 265         }
 266
 267         return pixmap;
 268 }
 269
 270 gint
 271 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 272 {
 273         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 274         Glib::RefPtr<Gdk::GC> fg_gc (meter_metric_area.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 275         Glib::RefPtr<Gdk::GC> bg_gc (meter_metric_area.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 276         GdkRectangle base_rect;
 277         GdkRectangle draw_rect;
 278         gint x, y, width, height, depth;
 279
 280         win->get_geometry (x, y, width, height, depth);
 281
 282         base_rect.width = width;
 283         base_rect.height = height;
 284         base_rect.x = 0;
 285         base_rect.y = 0;
 286
 287         Glib::RefPtr<Gdk::Pixmap> pixmap;
 288         std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
 289
 290         if (i == metric_pixmaps.end()) {
 291                 pixmap = render_metrics (meter_metric_area);
 292         } else {
 293                 pixmap = i->second;
 294         }
 295
 296         gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
 297         win->draw_rectangle (bg_gc, true, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 298         win->draw_drawable (bg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 299
 300         return true;
 301 }
 302
 303 GainMeter::~GainMeter ()
 304 {
 305         if (meter_menu) {
 306                 delete meter_menu;
 307         }
 308
 309         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
 310                 if ((*i).meter) {
 311                         delete (*i).meter;
 312                 }
 313         }
 314 }
 315
 316 void
 317 GainMeter::update_meters ()
 318 {
 319         vector<MeterInfo>::iterator i;
 320         uint32_t n;
 321         float peak;
 322         char buf[32];
 323
 324         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 325                 if ((*i).packed) {
 326                         peak = _io->peak_input_power (n);
 327
 328                         (*i).meter->set (log_meter (peak), peak);
 329
 330                         if (peak > max_peak) {
 331                 max_peak = peak;
 332                 /* set peak display */
 333                                 if (max_peak <= -200.0f) {
 334                                         peak_display_label.set_text (_("-inf"));
 335                                 } else {
 336                                         snprintf (buf, sizeof(buf), "%.1f", max_peak);
 337                                         peak_display_label.set_text (buf);
 338                                 }
 339
 340                                 if (max_peak >= 0.0f) {
 341                                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 342                                 }
 343                         }
 344                 }
 345         }
 346 }
 347
 348 void
 349 GainMeter::meter_hold_changed()
 350 {
 351         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::meter_hold_changed));
 352
 353         vector<MeterInfo>::iterator i;
 354         uint32_t n;
 355
 356         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 357
 358                 (*i).meter->set_hold_count ((uint32_t) floor(_session.meter_hold()));
 359         }
 360 }
 361
 362 void
 363 GainMeter::hide_all_meters ()
 364 {
 365         bool remove_metric_area = false;
 366
 367         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 368                 if ((*i).packed) {
 369                         remove_metric_area = true;
 370                         meter_packer.remove (*((*i).meter));
 371                         (*i).packed = false;
 372                 }
 373         }
 374
 375         if (remove_metric_area) {
 376                 if (meter_metric_area.get_parent()) {
 377                         meter_packer.remove (meter_metric_area);
 378                 }
 379         }
 380 }
 381
 382 void
 383 GainMeter::setup_meters ()
 384 {
 385         uint32_t nmeters = _io->n_outputs();
 386         guint16 width;
 387
 388         hide_all_meters ();
 389
 390         Route* r;
 391
 392         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 393
 394                 switch (r->meter_point()) {
 395                 case MeterPreFader:
 396                 case MeterInput:
 397                         nmeters = r->n_inputs();
 398                         break;
 399                 case MeterPostFader:
 400                         nmeters = r->n_outputs();
 401                         break;
 402                 }
 403
 404         } else {
 405
 406                 nmeters = _io->n_outputs();
 407
 408         }
 409
 410         if (nmeters == 0) {
 411                 return;
 412         }
 413
 414         if (nmeters <= 2) {
 415                 width = regular_meter_width;
 416         } else {
 417                 width = thin_meter_width;
 418         }
 419
 420         while (meters.size() < nmeters) {
 421                 meters.push_back (MeterInfo());
 422         }
 423
 424         for (uint32_t n = 0; n < nmeters; ++n) {
 425                 if (meters[n].width != width) {
 426                         delete meters[n].meter;
 427                         meters[n].meter = new FastMeter ((uint32_t) floor (_session.meter_hold()), width, FastMeter::Vertical);
 428                         meters[n].width = width;
 429
 430                         meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
 431                         meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
 432                 }
 433
 434                 meter_packer.pack_start (*meters[n].meter, Gtk::PACK_SHRINK);
 435                 meters[n].meter->show_all ();
 436                 meters[n].packed = true;
 437         }
 438
 439         if (_width == Wide) {
 440                 meter_packer.pack_start (meter_metric_area, Gtk::PACK_SHRINK);
 441                 meter_metric_area.show_all ();
 442         }
 443 }
 444
 445 gint
 446 GainMeter::peak_button_release (GdkEventButton* ev)
 447 {
 448         /* reset peak label */
 449
 450         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control|Keyboard::Shift)) {
 451                 ResetAllPeakDisplays ();
 452         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 453                 Route* r;
 454                 if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 455                         ResetGroupPeakDisplays (r->mix_group());
 456                 }
 457         } else {
 458                 reset_peak_display ();
 459         }
 460         return TRUE;
 461 }
 462
 463 void
 464 GainMeter::reset_peak_display ()
 465 {
 466         max_peak = minus_infinity();
 467         peak_display_label.set_text (_("-Inf"));
 468         peak_display.set_name ("Mixerstrippeakdisplay");
 469 }
 470
 471 void
 472 GainMeter::reset_group_peak_display (RouteGroup* group)
 473 {
 474         Route* r;
 475         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 476                 if (group == r->mix_group()) {
 477                         reset_peak_display ();
 478                 }
 479         }
 480 }
 481
 482 gint
 483 GainMeter::meter_button_release (GdkEventButton* ev, uint32_t which)
 484 {
 485         switch (ev->button) {
 486         case 1:
 487                 meters[which].meter->clear();
 488                 max_peak = minus_infinity();
 489                 peak_display_label.set_text (_("-inf"));
 490                 peak_display.set_name ("MixerStripPeakDisplay");
 491                 break;
 492
 493         case 3:
 494                 // popup_meter_menu (ev);
 495                 break;
 496         };
 497
 498         return TRUE;
 499 }
 500
 501 void
 502 GainMeter::popup_meter_menu (GdkEventButton *ev)
 503 {
 504         using namespace Menu_Helpers;
 505
 506         if (meter_menu == 0) {
 507                 meter_menu = new Gtk::Menu;
 508                 MenuList& items = meter_menu->items();
 509
 510                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 511                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 512                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 513                 items.push_back (SeparatorElem());
 514                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 515                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 516                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 517         }
 518
 519         meter_menu->popup (1, ev->time);
 520 }
 521
 522 void
 523 GainMeter::_gain_printer (char buf[32], Gtk::Adjustment& adj, void *arg)
 524 {
 525         static_cast<GainMeter *>(arg)->gain_printer (buf, adj);
 526 }
 527
 528 void
 529 GainMeter::gain_printer (char buf[32], Gtk::Adjustment& adj)
 530 {
 531         float v = adj.get_value();
 532
 533         if (v == 0.0) {
 534                 strcpy (buf, _("-inf"));
 535         } else {
 536                 snprintf (buf, 32, "%.1f", coefficient_to_dB (slider_position_to_gain (v)));
 537         }
 538 }
 539
 540 void
 541 GainMeter::gain_adjusted ()
 542 {
 543         if (!ignore_toggle) {
 544                 _io->set_gain (slider_position_to_gain (gain_adjustment.get_value()), this);
 545         }
 546 }
 547
 548 void
 549 GainMeter::effective_gain_display ()
 550 {
 551         gfloat value = gain_to_slider_position (_io->effective_gain());
 552
 553         if (gain_adjustment.get_value() != value) {
 554                 ignore_toggle = true;
 555                 gain_adjustment.set_value (value);
 556                 ignore_toggle = false;
 557         }
 558 }
 559
 560 void
 561 GainMeter::gain_changed (void *src)
 562 {
 563         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &GainMeter::effective_gain_display));
 564 }
 565
 566 void
 567 GainMeter::set_meter_strip_name (const char * name)
 568 {
 569         meter_metric_area.set_name (name);
 570 }
 571
 572 void
 573 GainMeter::set_fader_name (const char * name)
 574 {
 575         gain_slider->set_name (name);
 576 }
 577
 578 void
 579 GainMeter::update_gain_sensitive ()
 580 {
 581         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io->gain_automation_state() & Play));
 582 }
 583
 584
 585 static MeterPoint
 586 next_meter_point (MeterPoint mp)
 587 {
 588         switch (mp) {
 589         case MeterInput:
 590                 return MeterPreFader;
 591                 break;
 592
 593         case MeterPreFader:
 594                 return MeterPostFader;
 595                 break;
 596
 597         case MeterPostFader:
 598                 return MeterInput;
 599                 break;
 600         }
 601         /*NOTREACHED*/
 602         return MeterInput;
 603 }
 604
 605 gint
 606 GainMeter::meter_press(GdkEventButton* ev)
 607 {
 608         Route* _route;
 609
 610         wait_for_release = false;
 611
 612         if ((_route = dynamic_cast<Route*>(_io.get())) == 0) {
 613                 return FALSE;
 614         }
 615
 616         if (!ignore_toggle) {
 617
 618                 if (Keyboard::is_context_menu_event (ev)) {
 619
 620                         // no menu at this time.
 621
 622                 } else {
 623
 624                         if (ev->button == 2) {
 625
 626                                 // ctrl-button2 click is the midi binding click
 627                                 // button2-click is "momentary"
 628
 629                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control))) {
 630                                         wait_for_release = true;
 631                                         old_meter_point = _route->meter_point ();
 632                                 }
 633                         }
 634
 635                         if (ev->button == 1 || ev->button == 2) {
 636
 637                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Shift))) {
 638
 639                                         /* ctrl-shift-click applies change to all routes */
 640
 641                                         _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
 642
 643                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 644
 645                                         /* ctrl-click: solo mix group.
 646                                            ctrl-button2 is MIDI learn.
 647                                         */
 648
 649                                         if (ev->button == 1) {
 650                                                 set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 651                                         }
 652
 653                                 } else {
 654
 655                                         /* click: solo this route */
 656
 657                                         _route->set_meter_point (next_meter_point (_route->meter_point()), this);
 658                                 }
 659                         }
 660                 }
 661         }
 662
 663         return true;
 664
 665 }
 666
 667 gint
 668 GainMeter::meter_release(GdkEventButton* ev)
 669 {
 670
 671         if(!ignore_toggle){
 672                 if (wait_for_release){
 673                         wait_for_release = false;
 674                         set_meter_point (*(dynamic_cast<Route*>(_io.get())), old_meter_point);
 675                 }
 676         }
 677         return true;
 678 }
 679
 680 void
 681 GainMeter::set_meter_point (Route& route, MeterPoint mp)
 682 {
 683         route.set_meter_point (mp, this);
 684 }
 685
 686 void
 687 GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
 688 {
 689         RouteGroup* mix_group;
 690
 691         if((mix_group = route.mix_group()) != 0){
 692                 mix_group->apply (&Route::set_meter_point, mp, this);
 693         } else {
 694                 route.set_meter_point (mp, this);
 695         }
 696 }
 697
 698 void
 699 GainMeter::meter_point_clicked ()
 700 {
 701         Route* r;
 702
 703         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 704
 705         }
 706 }
 707
 708 gint
 709 GainMeter::start_gain_touch (GdkEventButton* ev)
 710 {
 711         _io->start_gain_touch ();
 712         return FALSE;
 713 }
 714
 715 gint
 716 GainMeter::end_gain_touch (GdkEventButton* ev)
 717 {
 718         _io->end_gain_touch ();
 719         return FALSE;
 720 }
 721
 722 gint
 723 GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
 724 {
 725         if (ev->type == GDK_BUTTON_RELEASE) {
 726                 return TRUE;
 727         }
 728
 729         switch (ev->button) {
 730                 case 1:
 731                         gain_astate_menu.popup (1, ev->time);
 732                         break;
 733                 default:
 734                         break;
 735         }
 736
 737         return TRUE;
 738 }
 739
 740 gint
 741 GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
 742 {
 743         if (ev->type == GDK_BUTTON_RELEASE) {
 744                 return TRUE;
 745         }
 746
 747         switch (ev->button) {
 748         case 1:
 749                 gain_astyle_menu.popup (1, ev->time);
 750                 break;
 751         default:
 752                 break;
 753         }
 754         return TRUE;
 755 }
 756
 757 string
 758 GainMeter::astate_string (AutoState state)
 759 {
 760         return _astate_string (state, false);
 761 }
 762
 763 string
 764 GainMeter::short_astate_string (AutoState state)
 765 {
 766         return _astate_string (state, true);
 767 }
 768
 769 string
 770 GainMeter::_astate_string (AutoState state, bool shrt)
 771 {
 772         string sstr;
 773
 774         switch (state) {
 775         case Off:
 776                 sstr = (shrt ? "O" : _("O"));
 777                 break;
 778         case Play:
 779                 sstr = (shrt ? "P" : _("P"));
 780                 break;
 781         case Touch:
 782                 sstr = (shrt ? "T" : _("T"));
 783                 break;
 784         case Write:
 785                 sstr = (shrt ? "W" : _("W"));
 786                 break;
 787         }
 788
 789         return sstr;
 790 }
 791
 792 string
 793 GainMeter::astyle_string (AutoStyle style)
 794 {
 795         return _astyle_string (style, false);
 796 }
 797
 798 string
 799 GainMeter::short_astyle_string (AutoStyle style)
 800 {
 801         return _astyle_string (style, true);
 802 }
 803
 804 string
 805 GainMeter::_astyle_string (AutoStyle style, bool shrt)
 806 {
 807         if (style & Trim) {
 808                 return _("Trim");
 809         } else {
 810                 /* XXX it might different in different languages */
 811
 812                 return (shrt ? _("Abs") : _("Abs"));
 813         }
 814 }
 815
 816 void
 817 GainMeter::gain_automation_style_changed ()
 818 {
 819   // Route* _route = dynamic_cast<Route*>(&_io);
 820         switch (_width) {
 821         case Wide:
 822                 gain_automation_style_button.set_label (astyle_string(_io->gain_automation_curve().automation_style()));
 823                 break;
 824         case Narrow:
 825                 gain_automation_style_button.set_label  (short_astyle_string(_io->gain_automation_curve().automation_style()));
 826                 break;
 827         }
 828 }
 829
 830 void
 831 GainMeter::gain_automation_state_changed ()
 832 {
 833         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
 834         //Route* _route = dynamic_cast<Route*>(&_io);
 835
 836         bool x;
 837
 838         switch (_width) {
 839         case Wide:
 840                 gain_automation_state_button.set_label (astate_string(_io->gain_automation_curve().automation_state()));
 841                 break;
 842         case Narrow:
 843                 gain_automation_state_button.set_label (short_astate_string(_io->gain_automation_curve().automation_state()));
 844                 break;
 845         }
 846
 847         x = (_io->gain_automation_state() != Off);
 848
 849         if (gain_automation_state_button.get_active() != x) {
 850                 ignore_toggle = true;
 851                 gain_automation_state_button.set_active (x);
 852                 ignore_toggle = false;
 853         }
 854
 855         update_gain_sensitive ();
 856
 857         /* start watching automation so that things move */
 858
 859         gain_watching.disconnect();
 860
 861         if (x) {
 862                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
 863         }
 864 }