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 <gtkmm2ext/utils.h>
  30 #include <gtkmm2ext/fastmeter.h>
  31 #include <gtkmm2ext/stop_signal.h>
  32 #include <gtkmm2ext/barcontroller.h>
  33 #include <midi++/manager.h>
  34 #include <pbd/fastlog.h>
  35
  36 #include "ardour_ui.h"
  37 #include "gain_meter.h"
  38 #include "utils.h"
  39 #include "logmeter.h"
  40 #include "gui_thread.h"
  41 #include "keyboard.h"
  42 #include "public_editor.h"
  43
  44 #include <ardour/session.h>
  45 #include <ardour/route.h>
  46
  47 #include "i18n.h"
  48
  49 using namespace ARDOUR;
  50 using namespace PBD;
  51 using namespace Gtkmm2ext;
  52 using namespace Gtk;
  53 using namespace sigc;
  54 using namespace std;
  55
  56 sigc::signal<void> GainMeter::ResetAllPeakDisplays;
  57 sigc::signal<void,RouteGroup*> GainMeter::ResetGroupPeakDisplays;
  58 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider;
  59 Glib::RefPtr<Gdk::Pixbuf> GainMeter::rail;
  60 map<string,Glib::RefPtr<Gdk::Pixmap> > GainMeter::metric_pixmaps;
  61
  62 int
  63 GainMeter::setup_slider_pix ()
  64 {
  65         slider = ::get_icon ("fader_belt");
  66         return 0;
  67 }
  68
  69 GainMeter::GainMeter (boost::shared_ptr<IO> io, Session& s)
  70         : _io (io),
  71           _session (s),
  72           gain_slider (0),
  73           // 0.781787 is the value needed for gain to be set to 0.
  74           gain_adjustment (0.781787, 0.0, 1.0, 0.01, 0.1),
  75           gain_automation_style_button (""),
  76           gain_automation_state_button (""),
  77           regular_meter_width(5)
  78
  79 {
  80         if (slider == 0) {
  81                 setup_slider_pix ();
  82         }
  83
  84         ignore_toggle = false;
  85         meter_menu = 0;
  86         next_release_selects = false;
  87         style_changed = true;
  88
  89         gain_slider = manage (new VSliderController (slider,
  90                                                      &gain_adjustment,
  91                                                      _io->gain_control(),
  92                                                      false));
  93
  94         gain_slider->signal_button_press_event().connect (mem_fun(*this, &GainMeter::start_gain_touch));
  95         gain_slider->signal_button_release_event().connect (mem_fun(*this, &GainMeter::end_gain_touch));
  96         gain_slider->set_name ("GainFader");
  97
  98         gain_display.set_name ("MixerStripGainDisplay");
  99         gain_display.set_has_frame (false);
 100         set_size_request_to_display_given_text (gain_display, "-80.g", 2, 6); /* note the descender */
 101         gain_display.signal_activate().connect (mem_fun (*this, &GainMeter::gain_activated));
 102         gain_display.signal_focus_in_event().connect (mem_fun (*this, &GainMeter::gain_focused), false);
 103         gain_display.signal_focus_out_event().connect (mem_fun (*this, &GainMeter::gain_focused), false);
 104
 105         gain_display_box.set_homogeneous (true);
 106         gain_display_box.set_spacing (2);
 107         gain_display_box.pack_start (gain_display, true, true);
 108
 109         peak_display.set_name ("MixerStripPeakDisplay");
 110 //      peak_display.set_has_frame (false);
 111 //      peak_display.set_editable (false);
 112         set_size_request_to_display_given_text  (peak_display, "-80.g", 2, 6); /* note the descender */
 113         max_peak = minus_infinity();
 114         peak_display.set_label (_("-inf"));
 115         peak_display.unset_flags (Gtk::CAN_FOCUS);
 116
 117         meter_metric_area.set_name ("AudioTrackMetrics");
 118         set_size_request_to_display_given_text (meter_metric_area, "-50", 0, 0);
 119
 120         meter_packer.set_spacing (2);
 121
 122         gain_automation_style_button.set_name ("MixerAutomationModeButton");
 123         gain_automation_state_button.set_name ("MixerAutomationPlaybackButton");
 124
 125         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_state_button, _("Fader automation mode"));
 126         ARDOUR_UI::instance()->tooltips().set_tip (gain_automation_style_button, _("Fader automation type"));
 127
 128         gain_automation_style_button.unset_flags (Gtk::CAN_FOCUS);
 129         gain_automation_state_button.unset_flags (Gtk::CAN_FOCUS);
 130
 131         gain_automation_state_button.set_size_request(15, 15);
 132         gain_automation_style_button.set_size_request(15, 15);
 133
 134         HBox* fader_centering_box = manage (new HBox);
 135         fader_centering_box->pack_start (*gain_slider, true, false);
 136
 137         fader_vbox = manage (new Gtk::VBox());
 138         fader_vbox->set_spacing (0);
 139         fader_vbox->pack_start (*fader_centering_box, false, false, 0);
 140
 141         hbox.set_spacing (2);
 142         hbox.pack_start (*fader_vbox, true, true);
 143
 144         set_width(Narrow);
 145
 146         Route* r;
 147
 148         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 149
 150                 /*
 151                    if we have a non-hidden route (ie. we're not the click or the auditioner),
 152                    pack some route-dependent stuff.
 153                 */
 154
 155                 gain_display_box.pack_end (peak_display, true, true);
 156                 hbox.pack_end (meter_packer, true, true);
 157
 158                 if (!r->hidden()) {
 159
 160                         using namespace Menu_Helpers;
 161
 162                         gain_astate_menu.items().push_back (MenuElem (_("Manual"),
 163                                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Off)));
 164                         gain_astate_menu.items().push_back (MenuElem (_("Play"),
 165                                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Play)));
 166                         gain_astate_menu.items().push_back (MenuElem (_("Write"),
 167                                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Write)));
 168                         gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 169                                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Touch)));
 170
 171                         gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 172                         gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 173
 174                         gain_astate_menu.set_name ("ArdourContextMenu");
 175                         gain_astyle_menu.set_name ("ArdourContextMenu");
 176
 177                         gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
 178                         gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
 179
 180                         r->gain_automation_curve().automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
 181                         r->gain_automation_curve().automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
 182
 183                         fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 184                         gain_automation_state_changed ();
 185                 }
 186         }
 187
 188         set_spacing (2);
 189
 190         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 191         pack_start (hbox, Gtk::PACK_SHRINK);
 192
 193         _io->gain_changed.connect (mem_fun(*this, &GainMeter::gain_changed));
 194
 195         meter_metric_area.signal_expose_event().connect (mem_fun(*this, &GainMeter::meter_metrics_expose));
 196         gain_adjustment.signal_value_changed().connect (mem_fun(*this, &GainMeter::gain_adjusted));
 197         peak_display.signal_button_release_event().connect (mem_fun(*this, &GainMeter::peak_button_release), false);
 198         gain_display.signal_key_press_event().connect (mem_fun(*this, &GainMeter::gain_key_press), false);
 199
 200         Config->ParameterChanged.connect (mem_fun (*this, &GainMeter::parameter_changed));
 201
 202         gain_changed (0);
 203         show_gain ();
 204
 205         update_gain_sensitive ();
 206
 207         ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
 208         ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
 209
 210         UI::instance()->theme_changed.connect (mem_fun(*this, &GainMeter::on_theme_changed));
 211         ColorsChanged.connect (mem_fun (*this, &GainMeter::color_handler));
 212         //hide_all();
 213 }
 214
 215 void
 216 GainMeter::set_width (Width w, int len)
 217 {
 218         switch (w) {
 219         case Wide:
 220                 peak_display.show();
 221                 break;
 222         case Narrow:
 223                 peak_display.hide();
 224                 break;
 225         }
 226
 227         _width = w;
 228         setup_meters (len);
 229 }
 230
 231 Glib::RefPtr<Gdk::Pixmap>
 232 GainMeter::render_metrics (Gtk::Widget& w)
 233 {
 234         //cerr << "name: " << w.get_name();//DEBUG
 235         //cerr << " bg_red = " << w.get_style()->get_bg(Gtk::STATE_NORMAL).get_red();//DEBUG
 236         //cerr << " fg_red = " << w.get_style()->get_fg(Gtk::STATE_NORMAL).get_red();//DEBUG
 237         Glib::RefPtr<Gdk::Window> win (w.get_window());
 238         Glib::RefPtr<Gdk::GC> fg_gc (w.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 239         Glib::RefPtr<Gdk::GC> bg_gc (w.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 240         gint width, height;
 241         int  db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
 242         char buf[32];
 243
 244         win->get_size (width, height);
 245
 246         Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (win, width, height);
 247
 248         metric_pixmaps[w.get_name()] = pixmap;
 249
 250         pixmap->draw_rectangle (bg_gc, true, 0, 0, width, height);
 251
 252         Glib::RefPtr<Pango::Layout> layout = w.create_pango_layout("");
 253
 254         for (uint32_t i = 0; i < sizeof (db_points)/sizeof (db_points[0]); ++i) {
 255
 256                 float fraction = log_meter (db_points[i]);
 257                 gint pos = height - (gint) floor (height * fraction);
 258
 259                 snprintf (buf, sizeof (buf), "%d", abs (db_points[i]));
 260
 261                 layout->set_text (buf);
 262
 263                 /* we want logical extents, not ink extents here */
 264
 265                 int width, height;
 266                 layout->get_pixel_size (width, height);
 267
 268                 pixmap->draw_line (fg_gc, 0, pos, 4, pos);
 269                 pixmap->draw_layout (fg_gc, 6, pos - (height/2), layout);
 270         }
 271
 272         return pixmap;
 273 }
 274
 275 gint
 276 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 277 {
 278         static Glib::RefPtr<Gtk::Style> meter_style;
 279         //cerr << "GainMeter::meter_metrics_expose() called on " << meter_metric_area.get_name();//DEBUG
 280         //cerr << " style_changed = " << style_changed;//DEBUG
 281         if (style_changed) {
 282                 meter_style = meter_metric_area.get_style();
 283         //      cerr << " get_style() called ";//DEBUG
 284         }
 285         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 286         //Glib::RefPtr<Gdk::GC> fg_gc (meter_style->get_fg_gc (Gtk::STATE_NORMAL));
 287         Glib::RefPtr<Gdk::GC> bg_gc (meter_style->get_bg_gc (Gtk::STATE_INSENSITIVE));
 288         GdkRectangle base_rect;
 289         GdkRectangle draw_rect;
 290         gint width, height;
 291
 292         win->get_size (width, height);
 293
 294         base_rect.width = width;
 295         base_rect.height = height;
 296         base_rect.x = 0;
 297         base_rect.y = 0;
 298
 299         Glib::RefPtr<Gdk::Pixmap> pixmap;
 300         std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
 301
 302         if (i == metric_pixmaps.end() || style_changed) {
 303                 pixmap = render_metrics (meter_metric_area);
 304         } else {
 305                 pixmap = i->second;
 306         //      cerr << " re-used " << i->first;//DEBUG
 307         }
 308
 309         gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
 310         //win->draw_rectangle (bg_gc, false, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 311         win->draw_drawable (bg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 312         //cerr << endl;//DEBUG
 313         style_changed = false;
 314         return true;
 315 }
 316
 317 void
 318 GainMeter::on_theme_changed()
 319 {
 320         style_changed = true;
 321 }
 322
 323 GainMeter::~GainMeter ()
 324 {
 325         if (meter_menu) {
 326                 delete meter_menu;
 327         }
 328
 329         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
 330                 if ((*i).meter) {
 331                         delete (*i).meter;
 332                 }
 333         }
 334 }
 335
 336 void
 337 GainMeter::update_meters ()
 338 {
 339         vector<MeterInfo>::iterator i;
 340         uint32_t n;
 341         float peak, mpeak;
 342         char buf[32];
 343
 344         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 345                 if ((*i).packed) {
 346                         peak = _io->peak_input_power (n);
 347
 348                         (*i).meter->set (log_meter (peak));
 349
 350                         mpeak = _io->max_peak_power(n);
 351
 352                         if (mpeak > max_peak) {
 353                                 max_peak = mpeak;
 354                                 /* set peak display */
 355                                 if (max_peak <= -200.0f) {
 356                                         peak_display.set_label (_("-inf"));
 357                                 } else {
 358                                         snprintf (buf, sizeof(buf), "%.1f", max_peak);
 359                                         peak_display.set_label (buf);
 360                                 }
 361
 362                                 if (max_peak >= 0.0f) {
 363                                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 364                                 }
 365                         }
 366                 }
 367         }
 368 }
 369
 370 void
 371 GainMeter::parameter_changed(const char* parameter_name)
 372 {
 373 #define PARAM_IS(x) (!strcmp (parameter_name, (x)))
 374
 375         ENSURE_GUI_THREAD (bind (mem_fun(*this, &GainMeter::parameter_changed), parameter_name));
 376
 377         if (PARAM_IS ("meter-hold")) {
 378
 379                 vector<MeterInfo>::iterator i;
 380                 uint32_t n;
 381
 382                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 383
 384                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 385                 }
 386         }
 387
 388 #undef PARAM_IS
 389 }
 390
 391 void
 392 GainMeter::hide_all_meters ()
 393 {
 394         bool remove_metric_area = false;
 395
 396         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 397                 if ((*i).packed) {
 398                         remove_metric_area = true;
 399                         meter_packer.remove (*((*i).meter));
 400                         (*i).packed = false;
 401                 }
 402         }
 403
 404         if (remove_metric_area) {
 405                 if (meter_metric_area.get_parent()) {
 406                         meter_packer.remove (meter_metric_area);
 407                 }
 408         }
 409 }
 410
 411 void
 412 GainMeter::setup_meters (int len)
 413 {
 414         uint32_t nmeters = _io->n_outputs();
 415         guint16 width;
 416
 417         hide_all_meters ();
 418
 419         Route* r;
 420
 421         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 422
 423                 switch (r->meter_point()) {
 424                 case MeterPreFader:
 425                 case MeterInput:
 426                         nmeters = r->n_inputs();
 427                         break;
 428                 case MeterPostFader:
 429                         nmeters = r->n_outputs();
 430                         break;
 431                 }
 432
 433         } else {
 434
 435                 nmeters = _io->n_outputs();
 436
 437         }
 438
 439         if (nmeters == 0) {
 440                 return;
 441         }
 442
 443         if (nmeters <= 2) {
 444                 width = regular_meter_width;
 445         } else {
 446                 width = thin_meter_width;
 447         }
 448
 449         while (meters.size() < nmeters) {
 450                 meters.push_back (MeterInfo());
 451         }
 452
 453         /* pack them backwards */
 454
 455         if (_width == Wide) {
 456                 meter_packer.pack_end (meter_metric_area, false, false);
 457                 meter_metric_area.show_all ();
 458         }
 459
 460         int b = ARDOUR_UI::config()->canvasvar_MeterColorBase.get();
 461         int m = ARDOUR_UI::config()->canvasvar_MeterColorMid.get();
 462         int t = ARDOUR_UI::config()->canvasvar_MeterColorTop.get();
 463         int c = ARDOUR_UI::config()->canvasvar_MeterColorClip.get();
 464
 465         cerr << "GainMeter::setup_meters() called color_changed = " << color_changed << " colors: " << hex << b << " " << m << " " << t << " " << c << endl;//DEBUG
 466
 467         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 468                 if (meters[n].width != width || meters[n].length != len || color_changed) {
 469                         delete meters[n].meter;
 470                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, FastMeter::Vertical, len, b, m, t, c);
 471                         //cerr << "GainMeter::setup_meters() w:l = " << width << ":" << len << endl;//DEBUG
 472                         meters[n].width = width;
 473                         meters[n].length = len;
 474                         meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
 475                         meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
 476                 }
 477
 478                 meter_packer.pack_end (*meters[n].meter, false, false);
 479                 meters[n].meter->show_all ();
 480                 meters[n].packed = true;
 481         }
 482         color_changed = false;
 483 }
 484
 485 int
 486 GainMeter::get_gm_width ()
 487 {
 488         Gtk::Requisition sz;
 489         hbox.size_request (sz);
 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::PrimaryModifier|Keyboard::TertiaryModifier)) {
 510                 ResetAllPeakDisplays ();
 511         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 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->reset_max_peak_meters();
 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->set_gain (dB_to_coefficient(f), this);
 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->set_gain (slider_position_to_gain (gain_adjustment.get_value()), this);
 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 (void *src)
 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         style_changed = true;
 665 }
 666
 667 void
 668 GainMeter::set_fader_name (const char * name)
 669 {
 670         gain_slider->set_name (name);
 671 }
 672
 673 void
 674 GainMeter::update_gain_sensitive ()
 675 {
 676         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io->gain_automation_state() & Play));
 677 }
 678
 679
 680 static MeterPoint
 681 next_meter_point (MeterPoint mp)
 682 {
 683         switch (mp) {
 684         case MeterInput:
 685                 return MeterPreFader;
 686                 break;
 687
 688         case MeterPreFader:
 689                 return MeterPostFader;
 690                 break;
 691
 692         case MeterPostFader:
 693                 return MeterInput;
 694                 break;
 695         }
 696         /*NOTREACHED*/
 697         return MeterInput;
 698 }
 699
 700 gint
 701 GainMeter::meter_press(GdkEventButton* ev)
 702 {
 703         Route* _route;
 704
 705         wait_for_release = false;
 706
 707         if ((_route = dynamic_cast<Route*>(_io.get())) == 0) {
 708                 return FALSE;
 709         }
 710
 711         if (!ignore_toggle) {
 712
 713                 if (Keyboard::is_context_menu_event (ev)) {
 714
 715                         // no menu at this time.
 716
 717                 } else {
 718
 719                         if (ev->button == 2) {
 720
 721                                 // Primary-button2 click is the midi binding click
 722                                 // button2-click is "momentary"
 723
 724                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 725                                         wait_for_release = true;
 726                                         old_meter_point = _route->meter_point ();
 727                                 }
 728                         }
 729
 730                         if (ev->button == 1 || ev->button == 2) {
 731
 732                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 733
 734                                         /* Primary+Tertiary-click applies change to all routes */
 735
 736                                         _session.begin_reversible_command (_("meter point change"));
 737                                         Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
 738                                         _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
 739                                         cmd->mark();
 740                                         _session.add_command (cmd);
 741                                         _session.commit_reversible_command ();
 742
 743
 744                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 745
 746                                         /* Primary-click: solo mix group.
 747                                            NOTE: Primary-button2 is MIDI learn.
 748                                         */
 749
 750                                         if (ev->button == 1) {
 751                                                 _session.begin_reversible_command (_("meter point change"));
 752                                                 Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
 753                                                 set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 754                                                 cmd->mark();
 755                                                 _session.add_command (cmd);
 756                                                 _session.commit_reversible_command ();
 757                                         }
 758
 759                                 } else {
 760
 761                                         /* click: change just this route */
 762
 763                                         // XXX no undo yet
 764
 765                                         _route->set_meter_point (next_meter_point (_route->meter_point()), this);
 766                                 }
 767                         }
 768                 }
 769         }
 770
 771         return true;
 772
 773 }
 774
 775 gint
 776 GainMeter::meter_release(GdkEventButton* ev)
 777 {
 778
 779         if(!ignore_toggle){
 780                 if (wait_for_release){
 781                         wait_for_release = false;
 782                         set_meter_point (*(dynamic_cast<Route*>(_io.get())), old_meter_point);
 783                 }
 784         }
 785         return true;
 786 }
 787
 788 void
 789 GainMeter::set_meter_point (Route& route, MeterPoint mp)
 790 {
 791         route.set_meter_point (mp, this);
 792 }
 793
 794 void
 795 GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
 796 {
 797         RouteGroup* mix_group;
 798
 799         if((mix_group = route.mix_group()) != 0){
 800                 mix_group->apply (&Route::set_meter_point, mp, this);
 801         } else {
 802                 route.set_meter_point (mp, this);
 803         }
 804 }
 805
 806 void
 807 GainMeter::meter_point_clicked ()
 808 {
 809         Route* r;
 810
 811         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 812
 813         }
 814 }
 815
 816 gint
 817 GainMeter::start_gain_touch (GdkEventButton* ev)
 818 {
 819         _io->start_gain_touch ();
 820         return FALSE;
 821 }
 822
 823 gint
 824 GainMeter::end_gain_touch (GdkEventButton* ev)
 825 {
 826         _io->end_gain_touch ();
 827         return FALSE;
 828 }
 829
 830 gint
 831 GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
 832 {
 833         if (ev->type == GDK_BUTTON_RELEASE) {
 834                 return TRUE;
 835         }
 836
 837         switch (ev->button) {
 838                 case 1:
 839                         gain_astate_menu.popup (1, ev->time);
 840                         break;
 841                 default:
 842                         break;
 843         }
 844
 845         return TRUE;
 846 }
 847
 848 gint
 849 GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
 850 {
 851         if (ev->type == GDK_BUTTON_RELEASE) {
 852                 return TRUE;
 853         }
 854
 855         switch (ev->button) {
 856         case 1:
 857                 gain_astyle_menu.popup (1, ev->time);
 858                 break;
 859         default:
 860                 break;
 861         }
 862         return TRUE;
 863 }
 864
 865 string
 866 GainMeter::astate_string (AutoState state)
 867 {
 868         return _astate_string (state, false);
 869 }
 870
 871 string
 872 GainMeter::short_astate_string (AutoState state)
 873 {
 874         return _astate_string (state, true);
 875 }
 876
 877 string
 878 GainMeter::_astate_string (AutoState state, bool shrt)
 879 {
 880         string sstr;
 881
 882         switch (state) {
 883         case Off:
 884                 sstr = (shrt ? "M" : _("M"));
 885                 break;
 886         case Play:
 887                 sstr = (shrt ? "P" : _("P"));
 888                 break;
 889         case Touch:
 890                 sstr = (shrt ? "T" : _("T"));
 891                 break;
 892         case Write:
 893                 sstr = (shrt ? "W" : _("W"));
 894                 break;
 895         }
 896
 897         return sstr;
 898 }
 899
 900 string
 901 GainMeter::astyle_string (AutoStyle style)
 902 {
 903         return _astyle_string (style, false);
 904 }
 905
 906 string
 907 GainMeter::short_astyle_string (AutoStyle style)
 908 {
 909         return _astyle_string (style, true);
 910 }
 911
 912 string
 913 GainMeter::_astyle_string (AutoStyle style, bool shrt)
 914 {
 915         if (style & Trim) {
 916                 return _("Trim");
 917         } else {
 918                 /* XXX it might different in different languages */
 919
 920                 return (shrt ? _("Abs") : _("Abs"));
 921         }
 922 }
 923
 924 void
 925 GainMeter::gain_automation_style_changed ()
 926 {
 927   // Route* _route = dynamic_cast<Route*>(&_io);
 928         switch (_width) {
 929         case Wide:
 930                 gain_automation_style_button.set_label (astyle_string(_io->gain_automation_curve().automation_style()));
 931                 break;
 932         case Narrow:
 933                 gain_automation_style_button.set_label  (short_astyle_string(_io->gain_automation_curve().automation_style()));
 934                 break;
 935         }
 936 }
 937
 938 void
 939 GainMeter::gain_automation_state_changed ()
 940 {
 941         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
 942         //Route* _route = dynamic_cast<Route*>(&_io);
 943
 944         bool x;
 945
 946         switch (_width) {
 947         case Wide:
 948                 gain_automation_state_button.set_label (astate_string(_io->gain_automation_curve().automation_state()));
 949                 break;
 950         case Narrow:
 951                 gain_automation_state_button.set_label (short_astate_string(_io->gain_automation_curve().automation_state()));
 952                 break;
 953         }
 954
 955         x = (_io->gain_automation_state() != Off);
 956
 957         if (gain_automation_state_button.get_active() != x) {
 958                 ignore_toggle = true;
 959                 gain_automation_state_button.set_active (x);
 960                 ignore_toggle = false;
 961         }
 962
 963         update_gain_sensitive ();
 964
 965         /* start watching automation so that things move */
 966
 967         gain_watching.disconnect();
 968
 969         if (x) {
 970                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
 971         }
 972 }
 973
 974 void GainMeter::setup_atv_meter (int len)
 975 {
 976         set_no_show_all();
 977         regular_meter_width = 3;
 978         set_width(Narrow, len);
 979         hide_all();
 980
 981         //cerr << "Config->get_show_track_meters() = " << Config->get_show_track_meters() << endl;//DEBUG
 982
 983         if (Config->get_show_track_meters()) {
 984                 meter_packer.show_all();
 985                 hbox.show();
 986                 show();
 987         }
 988 }
 989
 990 void GainMeter::clear_meters ()
 991 {
 992         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 993                 (*i).meter->clear();
 994         }
 995 }
 996
 997 void GainMeter::color_handler()
 998 {
 999         color_changed = true;
1000         setup_meters();
1001 }