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         Route* r;
 145
 146         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 147
 148                 /*
 149                    if we have a non-hidden route (ie. we're not the click or the auditioner),
 150                    pack some route-dependent stuff.
 151                 */
 152
 153                 gain_display_box.pack_end (peak_display, true, true);
 154                 hbox.pack_end (meter_packer, true, true);
 155
 156                 if (!r->hidden()) {
 157
 158                         using namespace Menu_Helpers;
 159
 160                         gain_astate_menu.items().push_back (MenuElem (_("Manual"),
 161                                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Off)));
 162                         gain_astate_menu.items().push_back (MenuElem (_("Play"),
 163                                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Play)));
 164                         gain_astate_menu.items().push_back (MenuElem (_("Write"),
 165                                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Write)));
 166                         gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 167                                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Touch)));
 168
 169                         gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 170                         gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 171
 172                         gain_astate_menu.set_name ("ArdourContextMenu");
 173                         gain_astyle_menu.set_name ("ArdourContextMenu");
 174
 175                         gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
 176                         gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
 177
 178                         r->gain_automation_curve().automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
 179                         r->gain_automation_curve().automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
 180
 181                         fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 182                         gain_automation_state_changed ();
 183                 }
 184         }
 185
 186         set_spacing (2);
 187
 188         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 189         pack_start (hbox, Gtk::PACK_SHRINK);
 190
 191         _io->gain_changed.connect (mem_fun(*this, &GainMeter::gain_changed));
 192
 193         meter_metric_area.signal_expose_event().connect (mem_fun(*this, &GainMeter::meter_metrics_expose));
 194         gain_adjustment.signal_value_changed().connect (mem_fun(*this, &GainMeter::gain_adjusted));
 195         peak_display.signal_button_release_event().connect (mem_fun(*this, &GainMeter::peak_button_release), false);
 196         gain_display.signal_key_press_event().connect (mem_fun(*this, &GainMeter::gain_key_press), false);
 197
 198         Config->ParameterChanged.connect (mem_fun (*this, &GainMeter::parameter_changed));
 199
 200         gain_changed (0);
 201         show_gain ();
 202
 203         update_gain_sensitive ();
 204
 205         ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
 206         ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
 207
 208         UI::instance()->theme_changed.connect (mem_fun(*this, &GainMeter::on_theme_changed));
 209         ColorsChanged.connect (mem_fun (*this, &GainMeter::color_handler));
 210         //hide_all();
 211 }
 212
 213 void
 214 GainMeter::set_width (Width w, int len)
 215 {
 216         _width = w;
 217         setup_meters (len);
 218 }
 219
 220 Glib::RefPtr<Gdk::Pixmap>
 221 GainMeter::render_metrics (Gtk::Widget& w)
 222 {
 223         //cerr << "name: " << w.get_name();//DEBUG
 224         //cerr << " bg_red = " << w.get_style()->get_bg(Gtk::STATE_NORMAL).get_red();//DEBUG
 225         //cerr << " fg_red = " << w.get_style()->get_fg(Gtk::STATE_NORMAL).get_red();//DEBUG
 226         Glib::RefPtr<Gdk::Window> win (w.get_window());
 227         Glib::RefPtr<Gdk::GC> fg_gc (w.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 228         Glib::RefPtr<Gdk::GC> bg_gc (w.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 229         gint width, height;
 230         int  db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
 231         char buf[32];
 232
 233         win->get_size (width, height);
 234
 235         Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (win, width, height);
 236
 237         metric_pixmaps[w.get_name()] = pixmap;
 238
 239         pixmap->draw_rectangle (bg_gc, true, 0, 0, width, height);
 240
 241         Glib::RefPtr<Pango::Layout> layout = w.create_pango_layout("");
 242
 243         for (uint32_t i = 0; i < sizeof (db_points)/sizeof (db_points[0]); ++i) {
 244
 245                 float fraction = log_meter (db_points[i]);
 246                 gint pos = height - (gint) floor (height * fraction);
 247
 248                 snprintf (buf, sizeof (buf), "%d", abs (db_points[i]));
 249
 250                 layout->set_text (buf);
 251
 252                 /* we want logical extents, not ink extents here */
 253
 254                 int width, height;
 255                 layout->get_pixel_size (width, height);
 256
 257                 pixmap->draw_line (fg_gc, 0, pos, 4, pos);
 258                 pixmap->draw_layout (fg_gc, 6, pos - (height/2), layout);
 259         }
 260
 261         return pixmap;
 262 }
 263
 264 gint
 265 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 266 {
 267         static Glib::RefPtr<Gtk::Style> meter_style;
 268         //cerr << "GainMeter::meter_metrics_expose() called on " << meter_metric_area.get_name();//DEBUG
 269         //cerr << " style_changed = " << style_changed;//DEBUG
 270         if (style_changed) {
 271                 meter_style = meter_metric_area.get_style();
 272         //      cerr << " get_style() called ";//DEBUG
 273         }
 274         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 275         //Glib::RefPtr<Gdk::GC> fg_gc (meter_style->get_fg_gc (Gtk::STATE_NORMAL));
 276         Glib::RefPtr<Gdk::GC> bg_gc (meter_style->get_bg_gc (Gtk::STATE_INSENSITIVE));
 277         GdkRectangle base_rect;
 278         GdkRectangle draw_rect;
 279         gint width, height;
 280
 281         win->get_size (width, height);
 282
 283         base_rect.width = width;
 284         base_rect.height = height;
 285         base_rect.x = 0;
 286         base_rect.y = 0;
 287
 288         Glib::RefPtr<Gdk::Pixmap> pixmap;
 289         std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
 290
 291         if (i == metric_pixmaps.end() || style_changed) {
 292                 pixmap = render_metrics (meter_metric_area);
 293         } else {
 294                 pixmap = i->second;
 295         //      cerr << " re-used " << i->first;//DEBUG
 296         }
 297
 298         gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
 299         //win->draw_rectangle (bg_gc, false, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 300         win->draw_drawable (bg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 301         //cerr << endl;//DEBUG
 302         style_changed = false;
 303         return true;
 304 }
 305
 306 void
 307 GainMeter::on_theme_changed()
 308 {
 309         style_changed = true;
 310 }
 311
 312 GainMeter::~GainMeter ()
 313 {
 314         if (meter_menu) {
 315                 delete meter_menu;
 316         }
 317
 318         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
 319                 if ((*i).meter) {
 320                         delete (*i).meter;
 321                 }
 322         }
 323 }
 324
 325 void
 326 GainMeter::update_meters ()
 327 {
 328         vector<MeterInfo>::iterator i;
 329         uint32_t n;
 330         float peak, mpeak;
 331         char buf[32];
 332
 333         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 334                 if ((*i).packed) {
 335                         peak = _io->peak_input_power (n);
 336
 337                         (*i).meter->set (log_meter (peak));
 338
 339                         mpeak = _io->max_peak_power(n);
 340
 341                         if (mpeak > max_peak) {
 342                                 max_peak = mpeak;
 343                                 /* set peak display */
 344                                 if (max_peak <= -200.0f) {
 345                                         peak_display.set_label (_("-inf"));
 346                                 } else {
 347                                         snprintf (buf, sizeof(buf), "%.1f", max_peak);
 348                                         peak_display.set_label (buf);
 349                                 }
 350
 351                                 if (max_peak >= 0.0f) {
 352                                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 353                                 }
 354                         }
 355                 }
 356         }
 357 }
 358
 359 void
 360 GainMeter::parameter_changed(const char* parameter_name)
 361 {
 362 #define PARAM_IS(x) (!strcmp (parameter_name, (x)))
 363
 364         ENSURE_GUI_THREAD (bind (mem_fun(*this, &GainMeter::parameter_changed), parameter_name));
 365
 366         if (PARAM_IS ("meter-hold")) {
 367
 368                 vector<MeterInfo>::iterator i;
 369                 uint32_t n;
 370
 371                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 372
 373                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 374                 }
 375         }
 376
 377 #undef PARAM_IS
 378 }
 379
 380 void
 381 GainMeter::hide_all_meters ()
 382 {
 383         bool remove_metric_area = false;
 384
 385         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 386                 if ((*i).packed) {
 387                         remove_metric_area = true;
 388                         meter_packer.remove (*((*i).meter));
 389                         (*i).packed = false;
 390                 }
 391         }
 392
 393         if (remove_metric_area) {
 394                 if (meter_metric_area.get_parent()) {
 395                         meter_packer.remove (meter_metric_area);
 396                 }
 397         }
 398 }
 399
 400 void
 401 GainMeter::setup_meters (int len)
 402 {
 403         uint32_t nmeters = _io->n_outputs();
 404         guint16 width;
 405
 406         hide_all_meters ();
 407
 408         Route* r;
 409
 410         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 411
 412                 switch (r->meter_point()) {
 413                 case MeterPreFader:
 414                 case MeterInput:
 415                         nmeters = r->n_inputs();
 416                         break;
 417                 case MeterPostFader:
 418                         nmeters = r->n_outputs();
 419                         break;
 420                 }
 421
 422         } else {
 423
 424                 nmeters = _io->n_outputs();
 425
 426         }
 427
 428         if (nmeters == 0) {
 429                 return;
 430         }
 431
 432         if (nmeters <= 2) {
 433                 width = regular_meter_width;
 434         } else {
 435                 width = thin_meter_width;
 436         }
 437
 438         while (meters.size() < nmeters) {
 439                 meters.push_back (MeterInfo());
 440         }
 441
 442         /* pack them backwards */
 443
 444         meter_packer.pack_end (meter_metric_area, false, false);
 445         meter_metric_area.show_all ();
 446
 447         int b = ARDOUR_UI::config()->canvasvar_MeterColorBase.get();
 448         int m = ARDOUR_UI::config()->canvasvar_MeterColorMid.get();
 449         int t = ARDOUR_UI::config()->canvasvar_MeterColorTop.get();
 450         int c = ARDOUR_UI::config()->canvasvar_MeterColorClip.get();
 451
 452         //cerr << "GainMeter::setup_meters() called color_changed = " << color_changed << " colors: " << hex << b << " " << m << " " << t << " " << c << endl;//DEBUG
 453
 454         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 455                 if (meters[n].width != width || meters[n].length != len || color_changed) {
 456                         delete meters[n].meter;
 457                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, FastMeter::Vertical, len, b, m, t, c);
 458                         //cerr << "GainMeter::setup_meters() w:l = " << width << ":" << len << endl;//DEBUG
 459                         meters[n].width = width;
 460                         meters[n].length = len;
 461                         meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
 462                         meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
 463                 }
 464
 465                 meter_packer.pack_end (*meters[n].meter, false, false);
 466                 meters[n].meter->show_all ();
 467                 meters[n].packed = true;
 468         }
 469         color_changed = false;
 470 }
 471
 472 int
 473 GainMeter::get_gm_width ()
 474 {
 475         Gtk::Requisition sz;
 476         hbox.size_request (sz);
 477         return sz.width;
 478 }
 479
 480 bool
 481 GainMeter::gain_key_press (GdkEventKey* ev)
 482 {
 483         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 484                 /* drop through to normal handling */
 485                 return false;
 486         }
 487         /* illegal key for gain entry */
 488         return true;
 489 }
 490
 491 bool
 492 GainMeter::peak_button_release (GdkEventButton* ev)
 493 {
 494         /* reset peak label */
 495
 496         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier|Keyboard::TertiaryModifier)) {
 497                 ResetAllPeakDisplays ();
 498         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 499                 Route* r;
 500                 if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 501                         ResetGroupPeakDisplays (r->mix_group());
 502                 }
 503         } else {
 504                 reset_peak_display ();
 505         }
 506
 507         return true;
 508 }
 509
 510 void
 511 GainMeter::reset_peak_display ()
 512 {
 513         Route * r;
 514         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 515                 r->reset_max_peak_meters();
 516         }
 517
 518         max_peak = -INFINITY;
 519         peak_display.set_label (_("-Inf"));
 520         peak_display.set_name ("MixerStripPeakDisplay");
 521 }
 522
 523 void
 524 GainMeter::reset_group_peak_display (RouteGroup* group)
 525 {
 526         Route* r;
 527         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 528                 if (group == r->mix_group()) {
 529                         reset_peak_display ();
 530                 }
 531         }
 532 }
 533
 534 gint
 535 GainMeter::meter_button_release (GdkEventButton* ev, uint32_t which)
 536 {
 537         switch (ev->button) {
 538         case 1:
 539                 meters[which].meter->clear();
 540                 max_peak = minus_infinity();
 541                 peak_display.set_label (_("-inf"));
 542                 peak_display.set_name ("MixerStripPeakDisplay");
 543                 break;
 544
 545         case 3:
 546                 // popup_meter_menu (ev);
 547                 break;
 548         };
 549
 550         return TRUE;
 551 }
 552
 553 void
 554 GainMeter::popup_meter_menu (GdkEventButton *ev)
 555 {
 556         using namespace Menu_Helpers;
 557
 558         if (meter_menu == 0) {
 559                 meter_menu = new Gtk::Menu;
 560                 MenuList& items = meter_menu->items();
 561
 562                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 563                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 564                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 565                 items.push_back (SeparatorElem());
 566                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 567                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 568                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 569         }
 570
 571         meter_menu->popup (1, ev->time);
 572 }
 573
 574 bool
 575 GainMeter::gain_focused (GdkEventFocus* ev)
 576 {
 577         if (ev->in) {
 578                 gain_display.select_region (0, -1);
 579         } else {
 580                 gain_display.select_region (0, 0);
 581         }
 582         return false;
 583 }
 584
 585 void
 586 GainMeter::gain_activated ()
 587 {
 588         float f;
 589
 590         if (sscanf (gain_display.get_text().c_str(), "%f", &f) == 1) {
 591
 592                 /* clamp to displayable values */
 593
 594                 f = min (f, 6.0f);
 595
 596                 _io->set_gain (dB_to_coefficient(f), this);
 597
 598                 if (gain_display.has_focus()) {
 599                         PublicEditor::instance().reset_focus();
 600                 }
 601         }
 602 }
 603
 604 void
 605 GainMeter::show_gain ()
 606 {
 607         char buf[32];
 608
 609         float v = gain_adjustment.get_value();
 610
 611         if (v == 0.0) {
 612                 strcpy (buf, _("-inf"));
 613         } else {
 614                 snprintf (buf, 32, "%.1f", coefficient_to_dB (slider_position_to_gain (v)));
 615         }
 616
 617         gain_display.set_text (buf);
 618 }
 619
 620 void
 621 GainMeter::gain_adjusted ()
 622 {
 623         if (!ignore_toggle) {
 624                 _io->set_gain (slider_position_to_gain (gain_adjustment.get_value()), this);
 625         }
 626         show_gain ();
 627 }
 628
 629 void
 630 GainMeter::effective_gain_display ()
 631 {
 632         gfloat value = gain_to_slider_position (_io->effective_gain());
 633
 634         if (gain_adjustment.get_value() != value) {
 635                 ignore_toggle = true;
 636                 gain_adjustment.set_value (value);
 637                 ignore_toggle = false;
 638         }
 639 }
 640
 641 void
 642 GainMeter::gain_changed (void *src)
 643 {
 644         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &GainMeter::effective_gain_display));
 645 }
 646
 647 void
 648 GainMeter::set_meter_strip_name (const char * name)
 649 {
 650         meter_metric_area.set_name (name);
 651         style_changed = true;
 652 }
 653
 654 void
 655 GainMeter::set_fader_name (const char * name)
 656 {
 657         gain_slider->set_name (name);
 658 }
 659
 660 void
 661 GainMeter::update_gain_sensitive ()
 662 {
 663         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io->gain_automation_state() & Play));
 664 }
 665
 666
 667 static MeterPoint
 668 next_meter_point (MeterPoint mp)
 669 {
 670         switch (mp) {
 671         case MeterInput:
 672                 return MeterPreFader;
 673                 break;
 674
 675         case MeterPreFader:
 676                 return MeterPostFader;
 677                 break;
 678
 679         case MeterPostFader:
 680                 return MeterInput;
 681                 break;
 682         }
 683         /*NOTREACHED*/
 684         return MeterInput;
 685 }
 686
 687 gint
 688 GainMeter::meter_press(GdkEventButton* ev)
 689 {
 690         Route* _route;
 691
 692         wait_for_release = false;
 693
 694         if ((_route = dynamic_cast<Route*>(_io.get())) == 0) {
 695                 return FALSE;
 696         }
 697
 698         if (!ignore_toggle) {
 699
 700                 if (Keyboard::is_context_menu_event (ev)) {
 701
 702                         // no menu at this time.
 703
 704                 } else {
 705
 706                         if (ev->button == 2) {
 707
 708                                 // Primary-button2 click is the midi binding click
 709                                 // button2-click is "momentary"
 710
 711                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
 712                                         wait_for_release = true;
 713                                         old_meter_point = _route->meter_point ();
 714                                 }
 715                         }
 716
 717                         if (ev->button == 1 || ev->button == 2) {
 718
 719                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 720
 721                                         /* Primary+Tertiary-click applies change to all routes */
 722
 723                                         _session.begin_reversible_command (_("meter point change"));
 724                                         Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
 725                                         _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
 726                                         cmd->mark();
 727                                         _session.add_command (cmd);
 728                                         _session.commit_reversible_command ();
 729
 730
 731                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 732
 733                                         /* Primary-click: solo mix group.
 734                                            NOTE: Primary-button2 is MIDI learn.
 735                                         */
 736
 737                                         if (ev->button == 1) {
 738                                                 _session.begin_reversible_command (_("meter point change"));
 739                                                 Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
 740                                                 set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 741                                                 cmd->mark();
 742                                                 _session.add_command (cmd);
 743                                                 _session.commit_reversible_command ();
 744                                         }
 745
 746                                 } else {
 747
 748                                         /* click: change just this route */
 749
 750                                         // XXX no undo yet
 751
 752                                         _route->set_meter_point (next_meter_point (_route->meter_point()), this);
 753                                 }
 754                         }
 755                 }
 756         }
 757
 758         return true;
 759
 760 }
 761
 762 gint
 763 GainMeter::meter_release(GdkEventButton* ev)
 764 {
 765
 766         if(!ignore_toggle){
 767                 if (wait_for_release){
 768                         wait_for_release = false;
 769                         set_meter_point (*(dynamic_cast<Route*>(_io.get())), old_meter_point);
 770                 }
 771         }
 772         return true;
 773 }
 774
 775 void
 776 GainMeter::set_meter_point (Route& route, MeterPoint mp)
 777 {
 778         route.set_meter_point (mp, this);
 779 }
 780
 781 void
 782 GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
 783 {
 784         RouteGroup* mix_group;
 785
 786         if((mix_group = route.mix_group()) != 0){
 787                 mix_group->apply (&Route::set_meter_point, mp, this);
 788         } else {
 789                 route.set_meter_point (mp, this);
 790         }
 791 }
 792
 793 void
 794 GainMeter::meter_point_clicked ()
 795 {
 796         Route* r;
 797
 798         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 799
 800         }
 801 }
 802
 803 gint
 804 GainMeter::start_gain_touch (GdkEventButton* ev)
 805 {
 806         _io->start_gain_touch ();
 807         return FALSE;
 808 }
 809
 810 gint
 811 GainMeter::end_gain_touch (GdkEventButton* ev)
 812 {
 813         _io->end_gain_touch ();
 814         return FALSE;
 815 }
 816
 817 gint
 818 GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
 819 {
 820         if (ev->type == GDK_BUTTON_RELEASE) {
 821                 return TRUE;
 822         }
 823
 824         switch (ev->button) {
 825                 case 1:
 826                         gain_astate_menu.popup (1, ev->time);
 827                         break;
 828                 default:
 829                         break;
 830         }
 831
 832         return TRUE;
 833 }
 834
 835 gint
 836 GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
 837 {
 838         if (ev->type == GDK_BUTTON_RELEASE) {
 839                 return TRUE;
 840         }
 841
 842         switch (ev->button) {
 843         case 1:
 844                 gain_astyle_menu.popup (1, ev->time);
 845                 break;
 846         default:
 847                 break;
 848         }
 849         return TRUE;
 850 }
 851
 852 string
 853 GainMeter::astate_string (AutoState state)
 854 {
 855         return _astate_string (state, false);
 856 }
 857
 858 string
 859 GainMeter::short_astate_string (AutoState state)
 860 {
 861         return _astate_string (state, true);
 862 }
 863
 864 string
 865 GainMeter::_astate_string (AutoState state, bool shrt)
 866 {
 867         string sstr;
 868
 869         switch (state) {
 870         case Off:
 871                 sstr = (shrt ? "M" : _("M"));
 872                 break;
 873         case Play:
 874                 sstr = (shrt ? "P" : _("P"));
 875                 break;
 876         case Touch:
 877                 sstr = (shrt ? "T" : _("T"));
 878                 break;
 879         case Write:
 880                 sstr = (shrt ? "W" : _("W"));
 881                 break;
 882         }
 883
 884         return sstr;
 885 }
 886
 887 string
 888 GainMeter::astyle_string (AutoStyle style)
 889 {
 890         return _astyle_string (style, false);
 891 }
 892
 893 string
 894 GainMeter::short_astyle_string (AutoStyle style)
 895 {
 896         return _astyle_string (style, true);
 897 }
 898
 899 string
 900 GainMeter::_astyle_string (AutoStyle style, bool shrt)
 901 {
 902         if (style & Trim) {
 903                 return _("Trim");
 904         } else {
 905                 /* XXX it might different in different languages */
 906
 907                 return (shrt ? _("Abs") : _("Abs"));
 908         }
 909 }
 910
 911 void
 912 GainMeter::gain_automation_style_changed ()
 913 {
 914   // Route* _route = dynamic_cast<Route*>(&_io);
 915         switch (_width) {
 916         case Wide:
 917                 gain_automation_style_button.set_label (astyle_string(_io->gain_automation_curve().automation_style()));
 918                 break;
 919         case Narrow:
 920                 gain_automation_style_button.set_label  (short_astyle_string(_io->gain_automation_curve().automation_style()));
 921                 break;
 922         }
 923 }
 924
 925 void
 926 GainMeter::gain_automation_state_changed ()
 927 {
 928         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
 929         //Route* _route = dynamic_cast<Route*>(&_io);
 930
 931         bool x;
 932
 933         switch (_width) {
 934         case Wide:
 935                 gain_automation_state_button.set_label (astate_string(_io->gain_automation_curve().automation_state()));
 936                 break;
 937         case Narrow:
 938                 gain_automation_state_button.set_label (short_astate_string(_io->gain_automation_curve().automation_state()));
 939                 break;
 940         }
 941
 942         x = (_io->gain_automation_state() != Off);
 943
 944         if (gain_automation_state_button.get_active() != x) {
 945                 ignore_toggle = true;
 946                 gain_automation_state_button.set_active (x);
 947                 ignore_toggle = false;
 948         }
 949
 950         update_gain_sensitive ();
 951
 952         /* start watching automation so that things move */
 953
 954         gain_watching.disconnect();
 955
 956         if (x) {
 957                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
 958         }
 959 }
 960
 961 void GainMeter::clear_meters ()
 962 {
 963         for (vector<MeterInfo>::iterator i = meters.begin(); i < meters.end(); i++) {
 964                 (*i).meter->clear();
 965         }
 966 }
 967
 968 void GainMeter::color_handler()
 969 {
 970         color_changed = true;
 971         setup_meters();
 972 }