gtk2_ardour/gain_meter.cc

   1 /*
   2   Copyright (C) 2002 Paul Davis
   3
   4   This program is free software; you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation; either version 2 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program; if not, write to the Free Software
  16   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18   $Id$
  19 */
  20
  21 #include <limits.h>
  22
  23 #include <ardour/io.h>
  24 #include <ardour/route.h>
  25 #include <ardour/route_group.h>
  26 #include <ardour/session.h>
  27 #include <ardour/session_route.h>
  28 #include <ardour/dB.h>
  29
  30 #include <gtkmm2ext/utils.h>
  31 #include <gtkmm2ext/fastmeter.h>
  32 #include <gtkmm2ext/stop_signal.h>
  33 #include <gtkmm2ext/barcontroller.h>
  34 #include <midi++/manager.h>
  35 #include <pbd/fastlog.h>
  36
  37 #include "ardour_ui.h"
  38 #include "gain_meter.h"
  39 #include "utils.h"
  40 #include "logmeter.h"
  41 #include "gui_thread.h"
  42 #include "keyboard.h"
  43 #include "public_editor.h"
  44
  45 #include <ardour/session.h>
  46 #include <ardour/route.h>
  47 #include <ardour/meter.h>
  48
  49 #include "i18n.h"
  50
  51 using namespace ARDOUR;
  52 using namespace PBD;
  53 using namespace Gtkmm2ext;
  54 using namespace Gtk;
  55 using namespace sigc;
  56 using namespace std;
  57
  58 sigc::signal<void> GainMeter::ResetAllPeakDisplays;
  59 sigc::signal<void,RouteGroup*> GainMeter::ResetGroupPeakDisplays;
  60 Glib::RefPtr<Gdk::Pixbuf> GainMeter::slider;
  61 Glib::RefPtr<Gdk::Pixbuf> GainMeter::rail;
  62 map<string,Glib::RefPtr<Gdk::Pixmap> > GainMeter::metric_pixmaps;
  63
  64 int
  65 GainMeter::setup_slider_pix ()
  66 {
  67         slider = ::get_icon ("fader_belt");
  68         return 0;
  69 }
  70
  71 GainMeter::GainMeter (boost::shared_ptr<IO> io, Session& s)
  72         : _io (io),
  73           _session (s),
  74           gain_slider (0),
  75           // 0.781787 is the value needed for gain to be set to 0.
  76           gain_adjustment (0.781787, 0.0, 1.0, 0.01, 0.1),
  77           gain_automation_style_button (""),
  78           gain_automation_state_button ("")
  79
  80 {
  81         if (slider == 0) {
  82                 setup_slider_pix ();
  83         }
  84
  85         ignore_toggle = false;
  86         meter_menu = 0;
  87         next_release_selects = false;
  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_text (_("-inf"));
 115         peak_display.unset_flags (Gtk::CAN_FOCUS);
 116
 117         meter_metric_area.set_name ("MeterMetricsStrip");
 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         if (_io->default_type() == ARDOUR::DataType::AUDIO)
 145                 hbox.pack_start (*fader_vbox, false, false, 2);
 146
 147         set_width(Narrow);
 148
 149         Route* r;
 150
 151         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 152
 153                 /*
 154                    if we have a route (ie. we're not the click),
 155                    pack some route-dependent stuff.
 156                 */
 157
 158                 gain_display_box.pack_end (peak_display, true, true);
 159
 160                 hbox.pack_end (meter_packer, true, true);
 161
 162                 using namespace Menu_Helpers;
 163
 164                 gain_astate_menu.items().push_back (MenuElem (_("Off"),
 165                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Off)));
 166                 gain_astate_menu.items().push_back (MenuElem (_("Play"),
 167                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Play)));
 168                 gain_astate_menu.items().push_back (MenuElem (_("Write"),
 169                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Write)));
 170                 gain_astate_menu.items().push_back (MenuElem (_("Touch"),
 171                                                       bind (mem_fun (*_io, &IO::set_gain_automation_state), (AutoState) Touch)));
 172
 173                 gain_astyle_menu.items().push_back (MenuElem (_("Trim")));
 174                 gain_astyle_menu.items().push_back (MenuElem (_("Abs")));
 175
 176                 gain_astate_menu.set_name ("ArdourContextMenu");
 177                 gain_astyle_menu.set_name ("ArdourContextMenu");
 178
 179                 gain_automation_style_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_style_button_event), false);
 180                 gain_automation_state_button.signal_button_press_event().connect (mem_fun(*this, &GainMeter::gain_automation_state_button_event), false);
 181
 182                 r->gain_automation_curve().automation_state_changed.connect (mem_fun(*this, &GainMeter::gain_automation_state_changed));
 183                 r->gain_automation_curve().automation_style_changed.connect (mem_fun(*this, &GainMeter::gain_automation_style_changed));
 184                 fader_vbox->pack_start (gain_automation_state_button, false, false, 0);
 185
 186                 gain_automation_state_changed ();
 187         }
 188
 189         set_spacing (2);
 190
 191         pack_start (gain_display_box, Gtk::PACK_SHRINK);
 192         pack_start (hbox, Gtk::PACK_SHRINK);
 193
 194         _io->gain_changed.connect (mem_fun(*this, &GainMeter::gain_changed));
 195
 196         meter_metric_area.signal_expose_event().connect (mem_fun(*this, &GainMeter::meter_metrics_expose));
 197         gain_adjustment.signal_value_changed().connect (mem_fun(*this, &GainMeter::gain_adjusted));
 198         peak_display.signal_button_release_event().connect (mem_fun(*this, &GainMeter::peak_button_release), false);
 199         gain_display.signal_key_press_event().connect (mem_fun(*this, &GainMeter::gain_key_press), false);
 200
 201         Config->ParameterChanged.connect (mem_fun (*this, &GainMeter::parameter_changed));
 202
 203         gain_changed (0);
 204         show_gain ();
 205
 206         update_gain_sensitive ();
 207
 208         ResetAllPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_peak_display));
 209         ResetGroupPeakDisplays.connect (mem_fun(*this, &GainMeter::reset_group_peak_display));
 210 }
 211
 212 void
 213 GainMeter::set_width (Width w)
 214 {
 215         switch (w) {
 216         case Wide:
 217                 peak_display.show();
 218                 break;
 219         case Narrow:
 220                 peak_display.hide();
 221                 break;
 222         }
 223
 224         _width = w;
 225         setup_meters ();
 226 }
 227
 228 Glib::RefPtr<Gdk::Pixmap>
 229 GainMeter::render_metrics (Gtk::Widget& w)
 230 {
 231         Glib::RefPtr<Gdk::Window> win (w.get_window());
 232         Glib::RefPtr<Gdk::GC> fg_gc (w.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 233         Glib::RefPtr<Gdk::GC> bg_gc (w.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 234         gint x, y, width, height, depth;
 235         int  db_points[] = { -50, -40, -20, -30, -10, -3, 0, 4 };
 236         char buf[32];
 237
 238         win->get_geometry (x, y, width, height, depth);
 239
 240         Glib::RefPtr<Gdk::Pixmap> pixmap = Gdk::Pixmap::create (win, width, height);
 241
 242         metric_pixmaps[w.get_name()] = pixmap;
 243
 244         pixmap->draw_rectangle (bg_gc, true, 0, 0, width, height);
 245
 246         Glib::RefPtr<Pango::Layout> layout = w.create_pango_layout("");
 247
 248         for (uint32_t i = 0; i < sizeof (db_points)/sizeof (db_points[0]); ++i) {
 249
 250                 float fraction = log_meter (db_points[i]);
 251                 gint pos = height - (gint) floor (height * fraction);
 252
 253                 snprintf (buf, sizeof (buf), "%d", abs (db_points[i]));
 254
 255                 layout->set_text (buf);
 256
 257                 /* we want logical extents, not ink extents here */
 258
 259                 int width, height;
 260                 layout->get_pixel_size (width, height);
 261
 262                 pixmap->draw_line (fg_gc, 0, pos, 4, pos);
 263                 pixmap->draw_layout (fg_gc, 6, pos - (height/2), layout);
 264         }
 265
 266         return pixmap;
 267 }
 268
 269 gint
 270 GainMeter::meter_metrics_expose (GdkEventExpose *ev)
 271 {
 272         Glib::RefPtr<Gdk::Window> win (meter_metric_area.get_window());
 273         Glib::RefPtr<Gdk::GC> fg_gc (meter_metric_area.get_style()->get_fg_gc (Gtk::STATE_NORMAL));
 274         Glib::RefPtr<Gdk::GC> bg_gc (meter_metric_area.get_style()->get_bg_gc (Gtk::STATE_NORMAL));
 275         GdkRectangle base_rect;
 276         GdkRectangle draw_rect;
 277         gint x, y, width, height, depth;
 278
 279         win->get_geometry (x, y, width, height, depth);
 280
 281         base_rect.width = width;
 282         base_rect.height = height;
 283         base_rect.x = 0;
 284         base_rect.y = 0;
 285
 286         Glib::RefPtr<Gdk::Pixmap> pixmap;
 287         std::map<string,Glib::RefPtr<Gdk::Pixmap> >::iterator i = metric_pixmaps.find (meter_metric_area.get_name());
 288
 289         if (i == metric_pixmaps.end()) {
 290                 pixmap = render_metrics (meter_metric_area);
 291         } else {
 292                 pixmap = i->second;
 293         }
 294
 295         gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
 296         win->draw_rectangle (bg_gc, true, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 297         win->draw_drawable (bg_gc, pixmap, draw_rect.x, draw_rect.y, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
 298
 299         return true;
 300 }
 301
 302 GainMeter::~GainMeter ()
 303 {
 304         if (meter_menu) {
 305                 delete meter_menu;
 306         }
 307
 308         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); i++) {
 309                 if ((*i).meter) {
 310                         delete (*i).meter;
 311                 }
 312         }
 313 }
 314
 315 void
 316 GainMeter::update_meters ()
 317 {
 318         vector<MeterInfo>::iterator i;
 319         uint32_t n;
 320         float peak, mpeak;
 321         char buf[32];
 322
 323         for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 324                 if ((*i).packed) {
 325                         peak = _io->peak_meter().peak_power (n);
 326
 327                         (*i).meter->set (log_meter (peak), peak);
 328
 329                         mpeak = _io->peak_meter().max_peak_power(n);
 330
 331                         if (mpeak > max_peak) {
 332                                 max_peak = mpeak;
 333                                 /* set peak display */
 334                                 if (max_peak <= -200.0f) {
 335                                         peak_display.set_text (_("-inf"));
 336                                 } else {
 337                                         snprintf (buf, sizeof(buf), "%.1f", max_peak);
 338                                         peak_display.set_text (buf);
 339                                 }
 340
 341                                 if (max_peak >= 0.0f) {
 342                                         peak_display.set_name ("MixerStripPeakDisplayPeak");
 343                                 }
 344                         }
 345                 }
 346         }
 347 }
 348
 349 void
 350 GainMeter::parameter_changed(const char* parameter_name)
 351 {
 352 #define PARAM_IS(x) (!strcmp (parameter_name, (x)))
 353
 354         ENSURE_GUI_THREAD (bind (mem_fun(*this, &GainMeter::parameter_changed), parameter_name));
 355
 356         if (PARAM_IS ("meter-hold")) {
 357
 358                 vector<MeterInfo>::iterator i;
 359                 uint32_t n;
 360
 361                 for (n = 0, i = meters.begin(); i != meters.end(); ++i, ++n) {
 362
 363                         (*i).meter->set_hold_count ((uint32_t) floor(Config->get_meter_hold()));
 364                 }
 365         }
 366
 367 #undef PARAM_IS
 368 }
 369
 370 void
 371 GainMeter::hide_all_meters ()
 372 {
 373         bool remove_metric_area = false;
 374
 375         for (vector<MeterInfo>::iterator i = meters.begin(); i != meters.end(); ++i) {
 376                 if ((*i).packed) {
 377                         remove_metric_area = true;
 378                         meter_packer.remove (*((*i).meter));
 379                         (*i).packed = false;
 380                 }
 381         }
 382
 383         if (remove_metric_area) {
 384                 if (meter_metric_area.get_parent()) {
 385                         meter_packer.remove (meter_metric_area);
 386                 }
 387         }
 388 }
 389
 390 void
 391 GainMeter::setup_meters ()
 392 {
 393         uint32_t nmeters = _io->n_outputs().get(DataType::AUDIO);
 394         guint16 width;
 395
 396         hide_all_meters ();
 397
 398         Route* r;
 399
 400         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 401
 402                 switch (r->meter_point()) {
 403                 case MeterPreFader:
 404                 case MeterInput:
 405                         nmeters = r->n_inputs().get(DataType::AUDIO);
 406                         break;
 407                 case MeterPostFader:
 408                         nmeters = r->n_outputs().get(DataType::AUDIO);
 409                         break;
 410                 }
 411
 412         } else {
 413
 414                 nmeters = _io->n_outputs().get(DataType::AUDIO);
 415
 416         }
 417
 418         if (nmeters == 0) {
 419                 return;
 420         }
 421
 422         if (nmeters <= 2) {
 423                 width = regular_meter_width;
 424         } else {
 425                 width = thin_meter_width;
 426         }
 427
 428         while (meters.size() < nmeters) {
 429                 meters.push_back (MeterInfo());
 430         }
 431
 432         /* pack them backwards */
 433
 434         if (_width == Wide) {
 435                 meter_packer.pack_end (meter_metric_area, false, false);
 436                 meter_metric_area.show_all ();
 437         }
 438
 439         for (int32_t n = nmeters-1; nmeters && n >= 0 ; --n) {
 440                 if (meters[n].width != width) {
 441                         delete meters[n].meter;
 442                         meters[n].meter = new FastMeter ((uint32_t) floor (Config->get_meter_hold()), width, FastMeter::Vertical);
 443                         meters[n].width = width;
 444
 445                         meters[n].meter->add_events (Gdk::BUTTON_RELEASE_MASK);
 446                         meters[n].meter->signal_button_release_event().connect (bind (mem_fun(*this, &GainMeter::meter_button_release), n));
 447                 }
 448
 449                 meter_packer.pack_end (*meters[n].meter, false, false);
 450                 meters[n].meter->show_all ();
 451                 meters[n].packed = true;
 452         }
 453 }
 454
 455 bool
 456 GainMeter::gain_key_press (GdkEventKey* ev)
 457 {
 458         if (key_is_legal_for_numeric_entry (ev->keyval)) {
 459                 /* drop through to normal handling */
 460                 return false;
 461         }
 462         /* illegal key for gain entry */
 463         return true;
 464 }
 465
 466 bool
 467 GainMeter::peak_button_release (GdkEventButton* ev)
 468 {
 469         /* reset peak label */
 470
 471         if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control|Keyboard::Shift)) {
 472                 ResetAllPeakDisplays ();
 473         } else if (ev->button == 1 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 474                 Route* r;
 475                 if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 476                         ResetGroupPeakDisplays (r->mix_group());
 477                 }
 478         } else {
 479                 reset_peak_display ();
 480         }
 481
 482         return true;
 483 }
 484
 485 void
 486 GainMeter::reset_peak_display ()
 487 {
 488         Route * r;
 489         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 490                 r->peak_meter().reset_max();
 491         }
 492
 493         max_peak = -INFINITY;
 494         peak_display.set_text (_("-Inf"));
 495         peak_display.set_name ("MixerStripPeakDisplay");
 496 }
 497
 498 void
 499 GainMeter::reset_group_peak_display (RouteGroup* group)
 500 {
 501         Route* r;
 502         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 503                 if (group == r->mix_group()) {
 504                         reset_peak_display ();
 505                 }
 506         }
 507 }
 508
 509 gint
 510 GainMeter::meter_button_release (GdkEventButton* ev, uint32_t which)
 511 {
 512         switch (ev->button) {
 513         case 1:
 514                 meters[which].meter->clear();
 515                 max_peak = minus_infinity();
 516                 peak_display.set_text (_("-inf"));
 517                 peak_display.set_name ("MixerStripPeakDisplay");
 518                 break;
 519
 520         case 3:
 521                 // popup_meter_menu (ev);
 522                 break;
 523         };
 524
 525         return TRUE;
 526 }
 527
 528 void
 529 GainMeter::popup_meter_menu (GdkEventButton *ev)
 530 {
 531         using namespace Menu_Helpers;
 532
 533         if (meter_menu == 0) {
 534                 meter_menu = new Gtk::Menu;
 535                 MenuList& items = meter_menu->items();
 536
 537                 items.push_back (MenuElem ("-inf .. +0dBFS"));
 538                 items.push_back (MenuElem ("-10dB .. +0dBFS"));
 539                 items.push_back (MenuElem ("-4 .. +0dBFS"));
 540                 items.push_back (SeparatorElem());
 541                 items.push_back (MenuElem ("-inf .. -2dBFS"));
 542                 items.push_back (MenuElem ("-10dB .. -2dBFS"));
 543                 items.push_back (MenuElem ("-4 .. -2dBFS"));
 544         }
 545
 546         meter_menu->popup (1, ev->time);
 547 }
 548
 549 bool
 550 GainMeter::gain_focused (GdkEventFocus* ev)
 551 {
 552         if (ev->in) {
 553                 gain_display.select_region (0, -1);
 554         } else {
 555                 gain_display.select_region (0, 0);
 556         }
 557         return false;
 558 }
 559
 560 void
 561 GainMeter::gain_activated ()
 562 {
 563         float f;
 564
 565         if (sscanf (gain_display.get_text().c_str(), "%f", &f) == 1) {
 566
 567                 /* clamp to displayable values */
 568
 569                 f = min (f, 6.0f);
 570
 571                 _io->set_gain (dB_to_coefficient(f), this);
 572
 573                 if (gain_display.has_focus()) {
 574                         PublicEditor::instance().reset_focus();
 575                 }
 576         }
 577 }
 578
 579 void
 580 GainMeter::show_gain ()
 581 {
 582         char buf[32];
 583
 584         float v = gain_adjustment.get_value();
 585
 586         if (v == 0.0) {
 587                 strcpy (buf, _("-inf"));
 588         } else {
 589                 snprintf (buf, 32, "%.1f", coefficient_to_dB (slider_position_to_gain (v)));
 590         }
 591
 592         gain_display.set_text (buf);
 593 }
 594
 595 void
 596 GainMeter::gain_adjusted ()
 597 {
 598         if (!ignore_toggle) {
 599                 _io->set_gain (slider_position_to_gain (gain_adjustment.get_value()), this);
 600         }
 601         show_gain ();
 602 }
 603
 604 void
 605 GainMeter::effective_gain_display ()
 606 {
 607         gfloat value = gain_to_slider_position (_io->effective_gain());
 608
 609         if (gain_adjustment.get_value() != value) {
 610                 ignore_toggle = true;
 611                 gain_adjustment.set_value (value);
 612                 ignore_toggle = false;
 613         }
 614 }
 615
 616 void
 617 GainMeter::gain_changed (void *src)
 618 {
 619         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &GainMeter::effective_gain_display));
 620 }
 621
 622 void
 623 GainMeter::set_meter_strip_name (const char * name)
 624 {
 625         meter_metric_area.set_name (name);
 626 }
 627
 628 void
 629 GainMeter::set_fader_name (const char * name)
 630 {
 631         gain_slider->set_name (name);
 632 }
 633
 634 void
 635 GainMeter::update_gain_sensitive ()
 636 {
 637         static_cast<Gtkmm2ext::SliderController*>(gain_slider)->set_sensitive (!(_io->gain_automation_state() & Play));
 638 }
 639
 640
 641 static MeterPoint
 642 next_meter_point (MeterPoint mp)
 643 {
 644         switch (mp) {
 645         case MeterInput:
 646                 return MeterPreFader;
 647                 break;
 648
 649         case MeterPreFader:
 650                 return MeterPostFader;
 651                 break;
 652
 653         case MeterPostFader:
 654                 return MeterInput;
 655                 break;
 656         }
 657         /*NOTREACHED*/
 658         return MeterInput;
 659 }
 660
 661 gint
 662 GainMeter::meter_press(GdkEventButton* ev)
 663 {
 664         Route* _route;
 665
 666         wait_for_release = false;
 667
 668         if ((_route = dynamic_cast<Route*>(_io.get())) == 0) {
 669                 return FALSE;
 670         }
 671
 672         if (!ignore_toggle) {
 673
 674                 if (Keyboard::is_context_menu_event (ev)) {
 675
 676                         // no menu at this time.
 677
 678                 } else {
 679
 680                         if (ev->button == 2) {
 681
 682                                 // ctrl-button2 click is the midi binding click
 683                                 // button2-click is "momentary"
 684
 685                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control))) {
 686                                         wait_for_release = true;
 687                                         old_meter_point = _route->meter_point ();
 688                                 }
 689                         }
 690
 691                         if (ev->button == 1 || ev->button == 2) {
 692
 693                                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Shift))) {
 694
 695                                         /* ctrl-shift-click applies change to all routes */
 696
 697                                         _session.begin_reversible_command (_("meter point change"));
 698                                         Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
 699                                         _session.foreach_route (this, &GainMeter::set_meter_point, next_meter_point (_route->meter_point()));
 700                                         cmd->mark();
 701                                         _session.add_command (cmd);
 702                                         _session.commit_reversible_command ();
 703
 704
 705                                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 706
 707                                         /* ctrl-click: solo mix group.
 708                                            ctrl-button2 is MIDI learn.
 709                                         */
 710
 711                                         if (ev->button == 1) {
 712                                                 _session.begin_reversible_command (_("meter point change"));
 713                                                 Session::GlobalMeteringStateCommand *cmd = new Session::GlobalMeteringStateCommand (_session, this);
 714                                                 set_mix_group_meter_point (*_route, next_meter_point (_route->meter_point()));
 715                                                 cmd->mark();
 716                                                 _session.add_command (cmd);
 717                                                 _session.commit_reversible_command ();
 718                                         }
 719
 720                                 } else {
 721
 722                                         /* click: change just this route */
 723
 724                                         // XXX no undo yet
 725
 726                                         _route->set_meter_point (next_meter_point (_route->meter_point()), this);
 727                                 }
 728                         }
 729                 }
 730         }
 731
 732         return true;
 733
 734 }
 735
 736 gint
 737 GainMeter::meter_release(GdkEventButton* ev)
 738 {
 739
 740         if(!ignore_toggle){
 741                 if (wait_for_release){
 742                         wait_for_release = false;
 743                         set_meter_point (*(dynamic_cast<Route*>(_io.get())), old_meter_point);
 744                 }
 745         }
 746         return true;
 747 }
 748
 749 void
 750 GainMeter::set_meter_point (Route& route, MeterPoint mp)
 751 {
 752         route.set_meter_point (mp, this);
 753 }
 754
 755 void
 756 GainMeter::set_mix_group_meter_point (Route& route, MeterPoint mp)
 757 {
 758         RouteGroup* mix_group;
 759
 760         if((mix_group = route.mix_group()) != 0){
 761                 mix_group->apply (&Route::set_meter_point, mp, this);
 762         } else {
 763                 route.set_meter_point (mp, this);
 764         }
 765 }
 766
 767 void
 768 GainMeter::meter_point_clicked ()
 769 {
 770         Route* r;
 771
 772         if ((r = dynamic_cast<Route*> (_io.get())) != 0) {
 773
 774         }
 775 }
 776
 777 gint
 778 GainMeter::start_gain_touch (GdkEventButton* ev)
 779 {
 780         _io->start_gain_touch ();
 781         return FALSE;
 782 }
 783
 784 gint
 785 GainMeter::end_gain_touch (GdkEventButton* ev)
 786 {
 787         _io->end_gain_touch ();
 788         return FALSE;
 789 }
 790
 791 gint
 792 GainMeter::gain_automation_state_button_event (GdkEventButton *ev)
 793 {
 794         if (ev->type == GDK_BUTTON_RELEASE) {
 795                 return TRUE;
 796         }
 797
 798         switch (ev->button) {
 799                 case 1:
 800                         gain_astate_menu.popup (1, ev->time);
 801                         break;
 802                 default:
 803                         break;
 804         }
 805
 806         return TRUE;
 807 }
 808
 809 gint
 810 GainMeter::gain_automation_style_button_event (GdkEventButton *ev)
 811 {
 812         if (ev->type == GDK_BUTTON_RELEASE) {
 813                 return TRUE;
 814         }
 815
 816         switch (ev->button) {
 817         case 1:
 818                 gain_astyle_menu.popup (1, ev->time);
 819                 break;
 820         default:
 821                 break;
 822         }
 823         return TRUE;
 824 }
 825
 826 string
 827 GainMeter::astate_string (AutoState state)
 828 {
 829         return _astate_string (state, false);
 830 }
 831
 832 string
 833 GainMeter::short_astate_string (AutoState state)
 834 {
 835         return _astate_string (state, true);
 836 }
 837
 838 string
 839 GainMeter::_astate_string (AutoState state, bool shrt)
 840 {
 841         string sstr;
 842
 843         switch (state) {
 844         case Off:
 845                 sstr = (shrt ? "O" : _("O"));
 846                 break;
 847         case Play:
 848                 sstr = (shrt ? "P" : _("P"));
 849                 break;
 850         case Touch:
 851                 sstr = (shrt ? "T" : _("T"));
 852                 break;
 853         case Write:
 854                 sstr = (shrt ? "W" : _("W"));
 855                 break;
 856         }
 857
 858         return sstr;
 859 }
 860
 861 string
 862 GainMeter::astyle_string (AutoStyle style)
 863 {
 864         return _astyle_string (style, false);
 865 }
 866
 867 string
 868 GainMeter::short_astyle_string (AutoStyle style)
 869 {
 870         return _astyle_string (style, true);
 871 }
 872
 873 string
 874 GainMeter::_astyle_string (AutoStyle style, bool shrt)
 875 {
 876         if (style & Trim) {
 877                 return _("Trim");
 878         } else {
 879                 /* XXX it might different in different languages */
 880
 881                 return (shrt ? _("Abs") : _("Abs"));
 882         }
 883 }
 884
 885 void
 886 GainMeter::gain_automation_style_changed ()
 887 {
 888   // Route* _route = dynamic_cast<Route*>(&_io);
 889         switch (_width) {
 890         case Wide:
 891                 gain_automation_style_button.set_label (astyle_string(_io->gain_automation_curve().automation_style()));
 892                 break;
 893         case Narrow:
 894                 gain_automation_style_button.set_label  (short_astyle_string(_io->gain_automation_curve().automation_style()));
 895                 break;
 896         }
 897 }
 898
 899 void
 900 GainMeter::gain_automation_state_changed ()
 901 {
 902         ENSURE_GUI_THREAD(mem_fun(*this, &GainMeter::gain_automation_state_changed));
 903         //Route* _route = dynamic_cast<Route*>(&_io);
 904
 905         bool x;
 906
 907         switch (_width) {
 908         case Wide:
 909                 gain_automation_state_button.set_label (astate_string(_io->gain_automation_curve().automation_state()));
 910                 break;
 911         case Narrow:
 912                 gain_automation_state_button.set_label (short_astate_string(_io->gain_automation_curve().automation_state()));
 913                 break;
 914         }
 915
 916         x = (_io->gain_automation_state() != Off);
 917
 918         if (gain_automation_state_button.get_active() != x) {
 919                 ignore_toggle = true;
 920                 gain_automation_state_button.set_active (x);
 921                 ignore_toggle = false;
 922         }
 923
 924         update_gain_sensitive ();
 925
 926         /* start watching automation so that things move */
 927
 928         gain_watching.disconnect();
 929
 930         if (x) {
 931                 gain_watching = ARDOUR_UI::RapidScreenUpdate.connect (mem_fun (*this, &GainMeter::effective_gain_display));
 932         }
 933 }