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 */
  19
  20 #include <limits.h>
  21
  22 #include <ardour/io.h>
  23 #include <ardour/route.h>
  24 #include <ardour/route_group.h>
  25 #include <ardour/session.h>
  26 #include <ardour/session_route.h>
  27 #include <ardour/dB.h>
  28
  29 #include <gtkmm/style.h>
  30 #include <gdkmm/color.h>
  31 #include <gtkmm2ext/utils.h>
  32 #include <gtkmm2ext/fastmeter.h>
  33 #include <gtkmm2ext/stop_signal.h>
  34 #include <gtkmm2ext/barcontroller.h>
  35 #include <gtkmm2ext/gtk_ui.h>
  36 #include <midi++/manager.h>
  37 #include <pbd/fastlog.h>
  38
  39 #include "ardour_ui.h"
  40 #include "gain_meter.h"
  41 #include "utils.h"
  42 #include "logmeter.h"
  43 #include "gui_thread.h"
  44 #include "keyboard.h"
  45 #include "public_editor.h"
  46
  47 #include <ardour/session.h>
  48 #include <ardour/route.h>
  49 #include <ardour/meter.h>
  50
  51 #include "i18n.h"
  52
  53 using namespace ARDOUR;
  54 using namespace PBD;
  55 using namespace Gtkmm2ext;
  56 using namespace Gtk;
  57 using namespace sigc;
  58 using namespace std;
  59
  60 sigc::signal<void> GainMeter::ResetAllPeakDisplays;
  61 sigc::signal<void,RouteGroup*> GainMeter::ResetGroupPeakDisplays;
  62 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider;
  63 Glib::RefPtr<Gdk::Pixbuf> GainMeter::rail;
  64 map<string,Glib::RefPtr<Gdk::Pixmap> > GainMeter::metric_pixmaps;
  65
  66 int
  67 GainMeter::setup_slider_pix ()
  68 {
  69         slider = ::get_icon ("fader_belt");
  70         return 0;
  71 }
  72
  73 GainMeter::GainMeter (boost::shared_ptr<IO> io, Session& s)
  74         : _io (io),
  75           _session (s),
  76           gain_slider (0),
  77           // 0.781787 is the value needed for gain to be set to 0.
  78           gain_adjustment (0.781787, 0.0, 1.0, 0.01, 0.1),
  79           gain_automation_style_button (""),
  80           gain_automation_state_button ("")
  81
  82 {
  83         if (slider == 0) {
  84                 setup_slider_pix ();
  85         }
  86
  87         ignore_toggle = false;
  88         meter_menu = 0;
  89         next_release_selects = false;
  90         style_changed = true;
  91
  92         gain_slider = manage (new VSliderController (slider,
  93                                                      &gain_adjustment,
  94                                                      *_io->gain_control().get(),
  95                                                      false));
  96
  97         gain_slider->signal_button_press_event().connect (mem_fun(*this, &GainMeter::start_gain_touch));
  98         gain_slider->signal_button_release_event().connect (mem_fun(*this, &GainMeter::end_gain_touch));
  99         gain_slider->set_name ("GainFader");
 100
 101         gain_display.set_name ("MixerStripGainDisplay");
 102         gain_display.set_has_frame (false);
 103         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 104         gain_display.signal_activate().connect (mem_fun (*this, &GainMeter::gain_activated));
 105         gain_display.signal_focus_in_event().connect (mem_fun (*this, &GainMeter::gain_focused), false);
 106         gain_display.signal_focus_out_event().connect (mem_fun (*this, &GainMeter::gain_focused), false);
 107
 108         gain_display_box.set_name ("MeterMetricsStrip");
 109         gain_display_box.set_homogeneous (true);
 110         gain_display_box.set_spacing (2);
 111         gain_display_box.pack_start (gain_display, true, true);
 112
 113         peak_display.set_name ("MixerStripPeakDisplay");
 114 //      peak_display.set_has_frame (false);
 115 //      peak_display.set_editable (false);
 116         set_size_request_to_display_given_text  (peak_display, "-80.g", 2, 6); /* note the descender */
 117         max_peak = minus_infinity();
 118         peak_display.set_label (_("-inf"));
 119         peak_display.unset_flags (Gtk::CAN_FOCUS);
 120
 121         meter_metric_area.set_name ("MeterMetricsStrip");
 122         set_size_request_to_display_given_text (meter_metric_area, "-50", 0, 0);
 123
 124         meter_packer.set_spacing (2);
 125
 126         gain_automation_style_button.set_name ("MixerAutomationModeButton");
 127         gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
 128
 129         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_state_button, _("Fader automation mode"));
 130         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_style_button, _("Fader automation type"));
 131
 132         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 133         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 134
 135         gain_automation_state_button.set_size_request(15, 15);
 136         gain_automation_style_button.set_size_request(15, 15);
 137
 138         HBox* fader_centering_box = manage (new HBox);
 139         fader_centering_box->pack_start (*gain_slider, true, false);
 140
 141         fader_vbox = manage (new Gtk::VBox());
 142         fader_vbox->set_spacing (0);
 143         fader_vbox->pack_start (*fader_centering_box, false, false, 0);
 144
 145         hbox.set_spacing (2);
 146
 147         if (_io->default_type() == ARDOUR::DataType::AUDIO) {
 148                 hbox.pack_start (*fader_vbox, true, true);
 149         }
 150
 151         set_width (Narrow);
 152
 153         Route* r;
 154
 155         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 156
 157                 /*
 158                    if we have a route (ie. we're not the click),
 159                    pack some route-dependent stuff.
 160                 */
 161
 162                 gain_display_box.pack_end (peak_display, true, true);
 163
 164                 hbox.pack_end (meter_packer, true, true);
 165
 166                 using namespace Menu_Helpers;
 167
 168                 gain_astate_menu.items().push_back (MenuElem (_("Manual"),
 169                                                       bind (mem_fun (*_io, &IO::set_parameter_automation_state),
 170                                                                   Parameter(GainAutomation), (AutoState) Off)));
 171                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 172                                                       bind (mem_fun (*_io, &IO::set_parameter_automation_state),
 173                                                                   Parameter(GainAutomation), (AutoState) Play)));
 174                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 175                                                       bind (mem_fun (*_io, &IO::set_parameter_automation_state),
 176                                                                   Parameter(GainAutomation), (AutoState) Write)));
 177                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 178                                                       bind (mem_fun (*_io, &IO::set_parameter_automation_state),
 179                                                                   Parameter(GainAutomation), (AutoState) Touch)));
 180
 181                 gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 182                 gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 183
 184                 gain_astate_menu.set_name ("ArdourContextMenu");
 185                 gain_astyle_menu.set_name ("ArdourContextMenu");
 186
 187                 gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
 188                 gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
 189
 190                 r->gain_control()->list()->automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
 191                 r->gain_control()->list()->automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
 192                 fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 193
 194                 gain_automation_state_changed ();
 195         }
 196
 197         set_spacing (2);
 198
 199         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 200         pack_start (hbox, Gtk::PACK_SHRINK);
 201
 202         _io->gain_control()->Changed.connect (mem_fun(*this, &GainMeter::gain_changed));
 203
 204         meter_metric_area.signal_expose_event().connect (mem_fun(*this, &GainMeter::meter_metrics_expose));
 205         gain_adjustment.signal_value_changed().connect (mem_fun(*this, &GainMeter::gain_adjusted));
 206         peak_display.signal_button_release_event().connect (mem_fun(*this, &GainMeter::peak_button_release), false);
 207         gain_display.signal_key_press_event().connect (mem_fun(*this, &GainMeter::gain_key_press), false);
 208
 209         Config->ParameterChanged.connect (mem_fun (*this, &GainMeter::parameter_changed));
 210
 211         gain_changed ();
 212         show_gain ();
 213
 214         update_gain_sensitive ();
 215
 216         ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
 217         ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
 218
 219         UI::instance()->theme_changed.connect (mem_fun(*this, &GainMeter::on_theme_changed));
 220 }
 221
 222 void
 223 GainMeter::set_width (Width w)
 224 {
 225         switch (w) {
 226         case Wide:
 227                 peak_display.show();
 228                 break;
 229         case Narrow:
 230                 peak_display.hide();
 231                 break;
 232         }
 233
 234         _width = w;
 235         setup_meters ();
 236 }
 237
 238 Glib::RefPtr<Gdk::Pixmap>
 239 GainMeter::render_metrics (Gtk::Widget& w)
 240 {
 241         //cerr << "GainMeter::render_metrics() called, red = " << w.get_style()->get_bg(Gtk::STATE_NORMAL).get_red() << endl;//DEBUG
 242         Glib::RefPtr<Gdk::Window> win (w.get_window());
 243         Glib::RefPtr<Gdk::GC> fg_gc (w.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 244         Glib::RefPtr<Gdk::GC> bg_gc (w.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 245         gint width, height;
 246         int  db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
 247         char buf[32];
 248
 249         win->get_size (width, height);
 250
 251         Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (win, width, height);
 252
 253         metric_pixmaps[w.get_name()] = pixmap;
 254
 255         pixmap->draw_rectangle (bg_gc, true, 0, 0, width, height);
 256
 257         Glib::RefPtr<Pango::Layout> layout = w.create_pango_layout("");
 258
 259         for (uint32_t i = 0; i < sizeof (db_points)/sizeof (db_points[0]); ++i) {
 260
 261                 float fraction = log_meter (db_points[i]);
 262                 gint pos = height - (gint) floor (height * fraction);
 263
 264                 snprintf (buf, sizeof (buf), "%d", abs (db_points[i]));
 265
 266                 layout->set_text (buf);
 267
 268                 /* we want logical extents, not ink extents here */
 269
 270                 int width, height;
 271                 layout->get_pixel_size (width, height);
 272
 273                 pixmap->draw_line (fg_gc, 0, pos, 4, pos);
 274                 pixmap->draw_layout (fg_gc, 6, pos - (height/2), layout);
 275         }
 276
 277         return pixmap;
 278 }
 279
 280 gint
 281 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 282 {
 283         /* Only draw dB scale if we're metering audio */
 284         if (_io->n_inputs().n_audio() + _io->n_outputs().n_audio() == 0)
 285                 return true;
 286
 287         static Glib::RefPtr<Gtk::Style> meter_style;
 288
 289         if (style_changed) {
 290                 meter_style = meter_metric_area.get_style();
 291         }
 292
 293         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 294         Glib::RefPtr<Gdk::GC> fg_gc (meter_style->get_fg_gc (Gtk::STATE_NORMAL));
 295         Glib::RefPtr<Gdk::GC> bg_gc (meter_style->get_bg_gc (Gtk::STATE_NORMAL));
 296
 297         GdkRectangle base_rect;
 298         GdkRectangle draw_rect;
 299         gint width, height;
 300
 301         win->get_size (width, height);
 302
 303         base_rect.width = width;
 304         base_rect.height = height;
 305         base_rect.x = 0;
 306         base_rect.y = 0;
 307
 308         Glib::RefPtr<Gdk::Pixmap> pixmap;
 309         std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
 310
 311         if (i == metric_pixmaps.end() || style_changed) {
 312                 pixmap = render_metrics (meter_metric_area);
 313         } else {
 314                 pixmap = i->second;
 315         }
 316
 317         gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
 318         win->draw_rectangle (bg_gc, true, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 319         win->draw_drawable (fg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 320
 321         style_changed = false;
 322         return true;
 323 }
 324
 325 void
 326 GainMeter::on_theme_changed()
 327 {
 328         style_changed = true;
 329 }
 330
 331 GainMeter::~GainMeter ()
 332 {
 333         if (meter_menu) {
 334                 delete meter_menu;
 335         }
 336
 337         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
 338                 if ((*i).meter) {
 339                         delete (*i).meter;
 340                 }
 341         }
 342 }
 343
 344 void
 345 GainMeter::update_meters ()
 346 {
 347         vector<MeterInfo>::iterator i;
 348         uint32_t n;
 349         float peak, mpeak;
 350         char buf[32];
 351
 352         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 353                 if ((*i).packed) {
 354                         peak = _io->peak_meter().peak_power (n);
 355
 356                         (*i).meter->set (log_meter (peak));
 357
 358                         mpeak = _io->peak_meter().max_peak_power(n);
 359
 360                         if (mpeak > max_peak) {
 361                                 max_peak = mpeak;
 362                                 /* set peak display */
 363                                 if (max_peak <= -200.0f) {
 364                                         peak_display.set_label (_("-inf"));
 365                                 } else {
 366                                         snprintf (buf, sizeof(buf), "%.1f", max_peak);
 367                                         peak_display.set_label (buf);
 368                                 }
 369
 370                                 if (max_peak >= 0.0f) {
 371                                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 372                                 }
 373                         }
 374                 }
 375         }
 376 }
 377
 378 void
 379 GainMeter::parameter_changed(const char* parameter_name)
 380 {
 381 #define PARAM_IS(x) (!strcmp (parameter_name, (x)))
 382
 383         ENSURE_GUI_THREAD (bind (mem_fun(*this, &GainMeter::parameter_changed), parameter_name));
 384
 385         if (PARAM_IS ("meter-hold")) {
 386
 387                 vector<MeterInfo>::iterator i;
 388                 uint32_t n;
 389
 390                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 391
 392                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 393                 }
 394         }
 395
 396 #undef PARAM_IS
 397 }
 398
 399 void
 400 GainMeter::hide_all_meters ()
 401 {
 402         bool remove_metric_area = false;
 403
 404         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 405                 if ((*i).packed) {
 406                         remove_metric_area = true;
 407                         meter_packer.remove (*((*i).meter));
 408                         (*i).packed = false;
 409                 }
 410         }
 411
 412         if (remove_metric_area) {
 413                 if (meter_metric_area.get_parent()) {
 414                         meter_packer.remove (meter_metric_area);
 415                 }
 416         }
 417 }
 418
 419 void
 420 GainMeter::setup_meters ()
 421 {
 422         uint32_t nmeters = _io->n_outputs().n_total();
 423         guint16 width;
 424
 425         hide_all_meters ();
 426
 427         Route* r;
 428
 429         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 430
 431                 switch (r->meter_point()) {
 432                 case MeterInput:
 433                         nmeters = r->n_inputs().n_total();
 434                         break;
 435                 case MeterPreFader:
 436                         nmeters = r->pre_fader_streams().n_total();
 437                         break;
 438                 case MeterPostFader:
 439                         nmeters = r->n_outputs().n_total();
 440                         break;
 441                 }
 442
 443         } else {
 444
 445                 nmeters = _io->n_outputs().n_total();
 446
 447         }
 448
 449         if (nmeters == 0) {
 450                 return;
 451         }
 452
 453         if (nmeters <= 2) {
 454                 width = regular_meter_width;
 455         } else {
 456                 width = thin_meter_width;
 457         }
 458
 459         while (meters.size() < nmeters) {
 460                 meters.push_back (MeterInfo());
 461         }
 462
 463         /* pack them backwards */
 464
 465         if (_width == Wide) {
 466                 meter_packer.pack_end (meter_metric_area, false, false);
 467                 meter_metric_area.show_all ();
 468         }
 469
 470         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 471                 if (meters[n].width != width) {
 472                         delete meters[n].meter;
 473                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, FastMeter::Vertical);
 474                         meters[n].width = width;
 475
 476                         meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
 477                         meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
 478                 }
 479
 480                 meter_packer.pack_end (*meters[n].meter, false, false);
 481                 meters[n].meter->show_all ();
 482                 meters[n].packed = true;
 483         }
 484 }
 485
 486 int
 487 GainMeter::get_gm_width ()
 488 {
 489         Gtk::Requisition sz = hbox.size_request ();
 490         return sz.width;
 491 }
 492
 493 bool
 494 GainMeter::gain_key_press (GdkEventKey* ev)
 495 {
 496         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 497                 /* drop through to normal handling */
 498                 return false;
 499         }
 500         /* illegal key for gain entry */
 501         return true;
 502 }
 503
 504 bool
 505 GainMeter::peak_button_release (GdkEventButton* ev)
 506 {
 507         /* reset peak label */
 508
 509         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control|Keyboard::Shift)) {
 510                 ResetAllPeakDisplays ();
 511         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 512                 Route* r;
 513                 if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 514                         ResetGroupPeakDisplays (r->mix_group());
 515                 }
 516         } else {
 517                 reset_peak_display ();
 518         }
 519
 520         return true;
 521 }
 522
 523 void
 524 GainMeter::reset_peak_display ()
 525 {
 526         Route * r;
 527         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 528                 r->peak_meter().reset_max();
 529         }
 530
 531         max_peak = -INFINITY;
 532         peak_display.set_label (_("-Inf"));
 533         peak_display.set_name ("MixerStripPeakDisplay");
 534 }
 535
 536 void
 537 GainMeter::reset_group_peak_display (RouteGroup* group)
 538 {
 539         Route* r;
 540         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 541                 if (group == r->mix_group()) {
 542                         reset_peak_display ();
 543                 }
 544         }
 545 }
 546
 547 gint
 548 GainMeter::meter_button_release (GdkEventButton* ev, uint32_t which)
 549 {
 550         switch (ev->button) {
 551         case 1:
 552                 meters[which].meter->clear();
 553                 max_peak = minus_infinity();
 554                 peak_display.set_label (_("-inf"));
 555                 peak_display.set_name ("MixerStripPeakDisplay");
 556                 break;
 557
 558         case 3:
 559                 // popup_meter_menu (ev);
 560                 break;
 561         };
 562
 563         return TRUE;
 564 }
 565
 566 void
 567 GainMeter::popup_meter_menu (GdkEventButton *ev)
 568 {
 569         using namespace Menu_Helpers;
 570
 571         if (meter_menu == 0) {
 572                 meter_menu = new Gtk::Menu;
 573                 MenuList& items = meter_menu->items();
 574
 575                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 576                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 577                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 578                 items.push_back (SeparatorElem());
 579                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 580                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 581                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 582         }
 583
 584         meter_menu->popup (1, ev->time);
 585 }
 586
 587 bool
 588 GainMeter::gain_focused (GdkEventFocus* ev)
 589 {
 590         if (ev->in) {
 591                 gain_display.select_region (0, -1);
 592         } else {
 593                 gain_display.select_region (0, 0);
 594         }
 595         return false;
 596 }
 597
 598 void
 599 GainMeter::gain_activated ()
 600 {
 601         float f;
 602
 603         if (sscanf (gain_display.get_text().c_str(), "%f", &f) == 1) {
 604
 605                 /* clamp to displayable values */
 606
 607                 f = min (f, 6.0f);
 608
 609                 _io->gain_control()->set_value (dB_to_coefficient(f));
 610
 611                 if (gain_display.has_focus()) {
 612                         PublicEditor::instance().reset_focus();
 613                 }
 614         }
 615 }
 616
 617 void
 618 GainMeter::show_gain ()
 619 {
 620         char buf[32];
 621
 622         float v = gain_adjustment.get_value();
 623
 624         if (v == 0.0) {
 625                 strcpy (buf, _("-inf"));
 626         } else {
 627                 snprintf (buf, 32, "%.1f", coefficient_to_dB (slider_position_to_gain (v)));
 628         }
 629
 630         gain_display.set_text (buf);
 631 }
 632
 633 void
 634 GainMeter::gain_adjusted ()
 635 {
 636         if (!ignore_toggle) {
 637                 _io->gain_control()->set_value (slider_position_to_gain (gain_adjustment.get_value()));
 638         }
 639         show_gain ();
 640 }
 641
 642 void
 643 GainMeter::effective_gain_display ()
 644 {
 645         gfloat value = gain_to_slider_position (_io->effective_gain());
 646
 647         if (gain_adjustment.get_value() != value) {
 648                 ignore_toggle = true;
 649                 gain_adjustment.set_value (value);
 650                 ignore_toggle = false;
 651         }
 652 }
 653
 654 void
 655 GainMeter::gain_changed ()
 656 {
 657         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &GainMeter::effective_gain_display));
 658 }
 659
 660 void
 661 GainMeter::set_meter_strip_name (const char * name)
 662 {
 663         meter_metric_area.set_name (name);
 664 }
 665
 666 void
 667 GainMeter::set_fader_name (const char * name)
 668 {
 669         gain_slider->set_name (name);
 670 }
 671
 672 void
 673 GainMeter::update_gain_sensitive ()
 674 {
 675         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io->gain_control()->list()->automation_state() & Play));
 676 }
 677
 678
 679 static MeterPoint
 680 next_meter_point (MeterPoint mp)
 681 {
 682         switch (mp) {
 683         case MeterInput:
 684                 return MeterPreFader;
 685                 break;
 686
 687         case MeterPreFader:
 688                 return MeterPostFader;
 689                 break;
 690
 691         case MeterPostFader:
 692                 return MeterInput;
 693                 break;
 694         }
 695         /*NOTREACHED*/
 696         return MeterInput;
 697 }
 698
 699 gint
 700 GainMeter::meter_press(GdkEventButton* ev)
 701 {
 702         Route* _route;
 703
 704         wait_for_release = false;
 705
 706         if ((_route = dynamic_cast<Route*>(_io.get())) == 0) {
 707                 return FALSE;
 708         }
 709
 710         if (!ignore_toggle) {
 711
 712                 if (Keyboard::is_context_menu_event (ev)) {
 713
 714                         // no menu at this time.
 715
 716                 } else {
 717
 718                         if (ev->button == 2) {
 719
 720                                 // ctrl-button2 click is the midi binding click
 721                                 // button2-click is "momentary"
 722
 723                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control))) {
 724                                         wait_for_release = true;
 725                                         old_meter_point = _route->meter_point ();
 726                                 }
 727                         }
 728
 729                         if (ev->button == 1 || ev->button == 2) {
 730
 731                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Shift))) {
 732
 733                                         /* ctrl-shift-click applies change to all routes */
 734
 735                                         _session.begin_reversible_command (_("meter point change"));
 736                                         Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
 737                                         _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
 738                                         cmd->mark();
 739                                         _session.add_command (cmd);
 740                                         _session.commit_reversible_command ();
 741
 742
 743                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 744
 745                                         /* ctrl-click: solo mix group.
 746                                            ctrl-button2 is MIDI learn.
 747                                         */
 748
 749                                         if (ev->button == 1) {
 750                                                 _session.begin_reversible_command (_("meter point change"));
 751                                                 Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
 752                                                 set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 753                                                 cmd->mark();
 754                                                 _session.add_command (cmd);
 755                                                 _session.commit_reversible_command ();
 756                                         }
 757
 758                                 } else {
 759
 760                                         /* click: change just this route */
 761
 762                                         // XXX no undo yet
 763
 764                                         _route->set_meter_point (next_meter_point (_route->meter_point()), this);
 765                                 }
 766                         }
 767                 }
 768         }
 769
 770         return true;
 771
 772 }
 773
 774 gint
 775 GainMeter::meter_release(GdkEventButton* ev)
 776 {
 777
 778         if(!ignore_toggle){
 779                 if (wait_for_release){
 780                         wait_for_release = false;
 781                         set_meter_point (*(dynamic_cast<Route*>(_io.get())), old_meter_point);
 782                 }
 783         }
 784         return true;
 785 }
 786
 787 void
 788 GainMeter::set_meter_point (Route& route, MeterPoint mp)
 789 {
 790         route.set_meter_point (mp, this);
 791 }
 792
 793 void
 794 GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
 795 {
 796         RouteGroup* mix_group;
 797
 798         if((mix_group = route.mix_group()) != 0){
 799                 mix_group->apply (&Route::set_meter_point, mp, this);
 800         } else {
 801                 route.set_meter_point (mp, this);
 802         }
 803 }
 804
 805 void
 806 GainMeter::meter_point_clicked ()
 807 {
 808         Route* r;
 809
 810         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 811
 812         }
 813 }
 814
 815 gint
 816 GainMeter::start_gain_touch (GdkEventButton* ev)
 817 {
 818         _io->gain_control()->list()->start_touch ();
 819         return FALSE;
 820 }
 821
 822 gint
 823 GainMeter::end_gain_touch (GdkEventButton* ev)
 824 {
 825         _io->gain_control()->list()->stop_touch ();
 826         return FALSE;
 827 }
 828
 829 gint
 830 GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
 831 {
 832         if (ev->type == GDK_BUTTON_RELEASE) {
 833                 return TRUE;
 834         }
 835
 836         switch (ev->button) {
 837                 case 1:
 838                         gain_astate_menu.popup (1, ev->time);
 839                         break;
 840                 default:
 841                         break;
 842         }
 843
 844         return TRUE;
 845 }
 846
 847 gint
 848 GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
 849 {
 850         if (ev->type == GDK_BUTTON_RELEASE) {
 851                 return TRUE;
 852         }
 853
 854         switch (ev->button) {
 855         case 1:
 856                 gain_astyle_menu.popup (1, ev->time);
 857                 break;
 858         default:
 859                 break;
 860         }
 861         return TRUE;
 862 }
 863
 864 string
 865 GainMeter::astate_string (AutoState state)
 866 {
 867         return _astate_string (state, false);
 868 }
 869
 870 string
 871 GainMeter::short_astate_string (AutoState state)
 872 {
 873         return _astate_string (state, true);
 874 }
 875
 876 string
 877 GainMeter::_astate_string (AutoState state, bool shrt)
 878 {
 879         string sstr;
 880
 881         switch (state) {
 882         case Off:
 883                 sstr = (shrt ? "M" : _("M"));
 884                 break;
 885         case Play:
 886                 sstr = (shrt ? "P" : _("P"));
 887                 break;
 888         case Touch:
 889                 sstr = (shrt ? "T" : _("T"));
 890                 break;
 891         case Write:
 892                 sstr = (shrt ? "W" : _("W"));
 893                 break;
 894         }
 895
 896         return sstr;
 897 }
 898
 899 string
 900 GainMeter::astyle_string (AutoStyle style)
 901 {
 902         return _astyle_string (style, false);
 903 }
 904
 905 string
 906 GainMeter::short_astyle_string (AutoStyle style)
 907 {
 908         return _astyle_string (style, true);
 909 }
 910
 911 string
 912 GainMeter::_astyle_string (AutoStyle style, bool shrt)
 913 {
 914         if (style & Trim) {
 915                 return _("Trim");
 916         } else {
 917                 /* XXX it might different in different languages */
 918
 919                 return (shrt ? _("Abs") : _("Abs"));
 920         }
 921 }
 922
 923 void
 924 GainMeter::gain_automation_style_changed ()
 925 {
 926   // Route* _route = dynamic_cast<Route*>(&_io);
 927         switch (_width) {
 928         case Wide:
 929                 gain_automation_style_button.set_label (astyle_string(_io->gain_control()->list()->automation_style()));
 930                 break;
 931         case Narrow:
 932                 gain_automation_style_button.set_label  (short_astyle_string(_io->gain_control()->list()->automation_style()));
 933                 break;
 934         }
 935 }
 936
 937 void
 938 GainMeter::gain_automation_state_changed ()
 939 {
 940         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
 941         //Route* _route = dynamic_cast<Route*>(&_io);
 942
 943         bool x;
 944
 945         switch (_width) {
 946         case Wide:
 947                 gain_automation_state_button.set_label (astate_string(_io->gain_control()->list()->automation_state()));
 948                 break;
 949         case Narrow:
 950                 gain_automation_state_button.set_label (short_astate_string(_io->gain_control()->list()->automation_state()));
 951                 break;
 952         }
 953
 954         x = (_io->gain_control()->list()->automation_state() != Off);
 955
 956         if (gain_automation_state_button.get_active() != x) {
 957                 ignore_toggle = true;
 958                 gain_automation_state_button.set_active (x);
 959                 ignore_toggle = false;
 960         }
 961
 962         update_gain_sensitive ();
 963
 964         /* start watching automation so that things move */
 965
 966         gain_watching.disconnect();
 967
 968         if (x) {
 969                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
 970         }
 971 }