gtk2_ardour/audio_clock.cc

   1 /*
   2     Copyright (C) 1999 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 <cstdio> // for sprintf
  21 #include <cmath>
  22
  23 #include "pbd/convert.h"
  24 #include "pbd/enumwriter.h"
  25
  26 #include <gtkmm/style.h>
  27
  28 #include "gtkmm2ext/cairocell.h"
  29 #include <gtkmm2ext/utils.h>
  30
  31 #include "ardour/ardour.h"
  32 #include "ardour/session.h"
  33 #include "ardour/tempo.h"
  34 #include "ardour/profile.h"
  35 #include <sigc++/bind.h>
  36
  37 #include "ardour_ui.h"
  38 #include "audio_clock.h"
  39 #include "utils.h"
  40 #include "keyboard.h"
  41 #include "gui_thread.h"
  42 #include "i18n.h"
  43
  44 using namespace ARDOUR;
  45 using namespace PBD;
  46 using namespace Gtk;
  47 using namespace std;
  48
  49 using Gtkmm2ext::Keyboard;
  50
  51 using PBD::atoi;
  52 using PBD::atof;
  53
  54 sigc::signal<void> AudioClock::ModeChanged;
  55 vector<AudioClock*> AudioClock::clocks;
  56
  57 uint32_t AudioClock::field_length[] = {
  58         2, /* Timecode_Hours */
  59         2, /* Timecode_Minutes */
  60         2, /* Timecode_Seconds */
  61         2, /* Timecode_Frames */
  62         2, /* MS_Hours */
  63         2, /* MS_Minutes */
  64         2, /* MS_Seconds */
  65         3, /* MS_Milliseconds */
  66         4, /* Bars */
  67         2, /* Beats */
  68         4, /* Ticks */
  69         10, /* AudioFrames */
  70 };
  71
  72 AudioClock::AudioClock (const string& clock_name, bool transient, const string& widget_name,
  73                         bool allow_edit, bool follows_playhead, bool duration, bool with_info)
  74         : _name (clock_name)
  75         , is_transient (transient)
  76         , is_duration (duration)
  77         , editable (allow_edit)
  78         , _follows_playhead (follows_playhead)
  79         , supplemental_left (0)
  80         , supplemental_right (0)
  81         , last_when(0)
  82         , _canonical_time_is_displayed (true)
  83         , _canonical_time (0)
  84 {
  85         last_when = 0;
  86
  87         last_hrs = 9999;
  88         last_mins = 9999;
  89         last_secs = 9999;
  90         last_frames = 99999;
  91
  92         ms_last_hrs = 9999;
  93         ms_last_mins = 9999;
  94         ms_last_secs = 9999;
  95         ms_last_millisecs = 99999;
  96
  97         last_negative = false;
  98
  99         last_pdelta = 0;
 100         last_sdelta = 0;
 101         key_entry_state = 0;
 102         ops_menu = 0;
 103         dragging = false;
 104         bbt_reference_time = -1;
 105         editing_field = (Field) 0;
 106
 107         /* basic per-mode editable text "arrays" */
 108
 109         display = new CairoEditableText ();
 110
 111         _fixed_cells[Colon1] = new CairoCharCell (Colon1, ':');
 112         _fixed_cells[Colon2] = new CairoCharCell (Colon2, ':');
 113         _fixed_cells[Colon3] = new CairoCharCell (Colon3, ':');
 114         _fixed_cells[Bar1] = new CairoCharCell (Bar1, '|');
 115         _fixed_cells[Bar2] = new CairoCharCell (Bar2, '|');
 116
 117         // add an extra character for the negative sign
 118         _text_cells[Timecode_Hours] = new CairoTextCell (Timecode_Hours, field_length[Timecode_Hours] + 1);
 119         _text_cells[Timecode_Minutes] = new CairoTextCell (Timecode_Minutes, field_length[Timecode_Minutes]);
 120         _text_cells[Timecode_Seconds] = new CairoTextCell (Timecode_Seconds, field_length[Timecode_Seconds]);
 121         _text_cells[Timecode_Frames] = new CairoTextCell (Timecode_Frames, field_length[Timecode_Frames]);
 122
 123         /* Minutes/Seconds */
 124
 125         _text_cells[MS_Hours] = new CairoTextCell (MS_Hours, field_length[MS_Hours]);
 126         _text_cells[MS_Minutes] = new CairoTextCell (MS_Minutes, field_length[MS_Minutes]);
 127         _text_cells[MS_Seconds] = new CairoTextCell (MS_Seconds, field_length[MS_Seconds]);
 128         _text_cells[MS_Milliseconds] = new CairoTextCell (MS_Milliseconds, field_length[MS_Milliseconds]);
 129
 130         /* Beats/Bars/Ticks */
 131
 132         _text_cells[Bars] = new CairoTextCell (Bars, field_length[Bars]);
 133         _text_cells[Beats] = new CairoTextCell (Beats, field_length[Beats]);
 134         _text_cells[Ticks] = new CairoTextCell (Ticks, field_length[Ticks]);
 135
 136         /* Audio Frames */
 137
 138         _text_cells[AudioFrames] = new CairoTextCell (AudioFrames, field_length[AudioFrames]);
 139
 140         set_homogeneous (false);
 141
 142         if (with_info) {
 143
 144                 supplemental_left = new CairoEditableText ();
 145                 supplemental_right = new CairoEditableText ();
 146
 147                 /* field lengths of these cells will be set dynamically by ::set_mode()
 148                  */
 149
 150                 _text_cells[LowerLeft1] = new CairoTextCell (LowerLeft1, 0);
 151                 _text_cells[LowerLeft2] = new CairoTextCell (LowerLeft2, 0);
 152                 _text_cells[LowerRight1] = new CairoTextCell (LowerRight1, 0);
 153                 _text_cells[LowerRight2] = new CairoTextCell (LowerRight2, 0);
 154
 155                 bottom.set_spacing (1);
 156                 bottom.set_homogeneous (false);
 157                 bottom.pack_start (*supplemental_left, true, true);
 158                 bottom.pack_start (*supplemental_right, true, true);
 159
 160                 top.pack_start (*display, true, true);
 161
 162                 set_spacing (1);
 163
 164                 pack_start (top, true, true);
 165                 pack_start (bottom, true, true);
 166         } else {
 167                 pack_start (*display, true, true);
 168         }
 169
 170         show_all ();
 171
 172         set_widget_name (widget_name);
 173
 174         _mode = BBT; /* lie to force mode switch */
 175         set_mode (Timecode);
 176         set (last_when, true);
 177
 178         if (!is_transient) {
 179                 clocks.push_back (this);
 180         }
 181 }
 182
 183 AudioClock::~AudioClock ()
 184 {
 185         /* these are not manage()'d, so that we can add/remove
 186            them from containers as necessary.
 187         */
 188         delete display;
 189         delete supplemental_left;
 190         delete supplemental_right;
 191         /* XXX need to delete all cells too */
 192 }
 193
 194 void
 195 AudioClock::set_widget_name (const string& name)
 196 {
 197         Widget::set_name (name);
 198
 199         set_theme ();
 200 }
 201
 202 void
 203 AudioClock::set_theme ()
 204 {
 205         Glib::RefPtr<Gtk::Style> style = get_style ();
 206         double r, g, b, a;
 207
 208         if (!style) {
 209                 return;
 210         }
 211
 212         Pango::FontDescription font;
 213
 214         if (!is_realized()) {
 215                 font = get_font_for_style (get_name());
 216         } else {
 217                 font = style->get_font();
 218         }
 219
 220         display->set_font (font);
 221
 222         /* propagate font style,but smaller, into supplemental text */
 223         if (supplemental_left) {
 224                 boost::shared_ptr<CairoFontDescription> smaller_font (new CairoFontDescription (*display->font().get()));
 225                 smaller_font->set_size (12);
 226                 supplemental_right->set_font (smaller_font);
 227                 supplemental_left->set_font (smaller_font);
 228         }
 229
 230         Gdk::Color bg = style->get_base (Gtk::STATE_NORMAL);
 231         Gdk::Color fg = style->get_text (Gtk::STATE_NORMAL);
 232         Gdk::Color eg = style->get_text (Gtk::STATE_ACTIVE);
 233
 234         r = bg.get_red_p ();
 235         g = bg.get_green_p ();
 236         b = bg.get_blue_p ();
 237         a = 1.0;
 238
 239         display->set_bg (r, g, b, a);
 240
 241         if (supplemental_right) {
 242                 supplemental_right->set_bg (r,g,b,a);
 243                 supplemental_left->set_bg (r,g,b,a);
 244         }
 245
 246         r = fg.get_red_p ();
 247         g = fg.get_green_p ();
 248         b = fg.get_blue_p ();
 249         a = 1.0;
 250
 251         display->set_colors (r, g, b, a);
 252
 253         if (supplemental_right) {
 254                 supplemental_right->set_colors (r,g,b,a);
 255                 supplemental_left->set_colors (r,g,b,a);
 256         }
 257
 258         r = eg.get_red_p ();
 259         g = eg.get_green_p ();
 260         b = eg.get_blue_p ();
 261         a = 1.0;
 262
 263         display->set_edit_colors (r, g, b, a);
 264
 265         if (supplemental_right) {
 266                 supplemental_right->set_edit_colors (r,g,b,a);
 267                 supplemental_left->set_edit_colors (r,g,b,a);
 268         }
 269
 270         queue_draw ();
 271 }
 272
 273 void
 274 AudioClock::focus ()
 275 {
 276 }
 277
 278 void
 279 AudioClock::end_edit ()
 280 {
 281         display->stop_editing ();
 282         editing_field = (Field) 0;
 283         key_entry_state = 0;
 284
 285         /* move focus back to the default widget in the top level window */
 286
 287         Keyboard::magic_widget_drop_focus ();
 288
 289         Widget* top = get_toplevel();
 290
 291         if (top->is_toplevel ()) {
 292                 Window* win = dynamic_cast<Window*> (top);
 293                 win->grab_focus ();
 294         }
 295 }
 296
 297 void
 298 AudioClock::on_realize ()
 299 {
 300         VBox::on_realize ();
 301
 302         /* styles are not available until the widgets are bound to a window */
 303
 304         set_theme ();
 305 }
 306
 307 void
 308 AudioClock::set (framepos_t when, bool force, framecnt_t offset, char which)
 309 {
 310         if ((!force && !is_visible()) || _session == 0) {
 311                 return;
 312         }
 313
 314         bool const pdelta = Config->get_primary_clock_delta_edit_cursor ();
 315         bool const sdelta = Config->get_secondary_clock_delta_edit_cursor ();
 316
 317         if (offset && which == 'p' && pdelta) {
 318                 when = (when > offset) ? when - offset : offset - when;
 319         } else if (offset && which == 's' && sdelta) {
 320                 when = (when > offset) ? when - offset : offset - when;
 321         }
 322
 323         if (when == last_when && !force) {
 324                 return;
 325         }
 326
 327         if (which == 'p' && pdelta && !last_pdelta) {
 328                 set_widget_name("TransportClockDisplayDelta");
 329                 last_pdelta = true;
 330         } else if (which == 'p' && !pdelta && last_pdelta) {
 331                 set_widget_name("TransportClockDisplay");
 332                 last_pdelta = false;
 333         } else if (which == 's' && sdelta && !last_sdelta) {
 334                 set_widget_name("SecondaryClockDisplayDelta");
 335                 last_sdelta = true;
 336         } else if (which == 's' && !sdelta && last_sdelta) {
 337                 set_widget_name("SecondaryClockDisplay");
 338                 last_sdelta = false;
 339         }
 340
 341         switch (_mode) {
 342         case Timecode:
 343                 set_timecode (when, force);
 344                 break;
 345
 346         case BBT:
 347                 set_bbt (when, force);
 348                 break;
 349
 350         case MinSec:
 351                 set_minsec (when, force);
 352                 break;
 353
 354         case Frames:
 355                 set_frames (when, force);
 356                 break;
 357
 358         case Off:
 359                 break;
 360         }
 361
 362         last_when = when;
 363
 364         /* we're setting the time from a frames value, so keep it as the canonical value */
 365         _canonical_time = when;
 366         _canonical_time_is_displayed = false;
 367 }
 368
 369 void
 370 AudioClock::session_configuration_changed (std::string p)
 371 {
 372         if (p != "timecode-offset" && p != "timecode-offset-negative") {
 373                 return;
 374         }
 375
 376         framecnt_t current;
 377
 378         switch (_mode) {
 379         case Timecode:
 380                 if (is_duration) {
 381                         current = current_duration ();
 382                 } else {
 383                         current = current_time ();
 384                 }
 385                 set (current, true);
 386                 break;
 387         default:
 388                 break;
 389         }
 390 }
 391
 392 void
 393 AudioClock::set_frames (framepos_t when, bool /*force*/)
 394 {
 395         char buf[32];
 396         snprintf (buf, sizeof (buf), "%" PRId64, when);
 397
 398         display->set_text (_text_cells[AudioFrames], buf);
 399
 400         if (supplemental_left) {
 401                 framecnt_t rate = _session->frame_rate();
 402
 403                 if (fmod (rate, 1000.0) == 0.000) {
 404                         sprintf (buf, "%" PRId64 "K", rate/1000);
 405                 } else {
 406                         sprintf (buf, "%" PRId64, rate);
 407                 }
 408
 409                 supplemental_left->set_text (_text_cells[LowerLeft2], buf);
 410
 411                 float vid_pullup = _session->config.get_video_pullup();
 412
 413                 if (vid_pullup == 0.0) {
 414                         supplemental_right->set_text (_text_cells[LowerRight2], _("none"));
 415                 } else {
 416                         sprintf (buf, "%-6.4f", vid_pullup);
 417                         supplemental_right->set_text (_text_cells[LowerRight2], buf);
 418                 }
 419         }
 420 }
 421
 422 void
 423 AudioClock::set_minsec (framepos_t when, bool force)
 424 {
 425         char buf[32];
 426         framecnt_t left;
 427         int hrs;
 428         int mins;
 429         int secs;
 430         int millisecs;
 431
 432         left = when;
 433         hrs = (int) floor (left / (_session->frame_rate() * 60.0f * 60.0f));
 434         left -= (framecnt_t) floor (hrs * _session->frame_rate() * 60.0f * 60.0f);
 435         mins = (int) floor (left / (_session->frame_rate() * 60.0f));
 436         left -= (framecnt_t) floor (mins * _session->frame_rate() * 60.0f);
 437         secs = (int) floor (left / (float) _session->frame_rate());
 438         left -= (framecnt_t) floor (secs * _session->frame_rate());
 439         millisecs = floor (left * 1000.0 / (float) _session->frame_rate());
 440
 441         if (force || hrs != ms_last_hrs) {
 442                 sprintf (buf, "%02d", hrs);
 443                 display->set_text (_text_cells[MS_Hours], buf);
 444                 ms_last_hrs = hrs;
 445         }
 446
 447         if (force || mins != ms_last_mins) {
 448                 sprintf (buf, "%02d", mins);
 449                 display->set_text (_text_cells[MS_Minutes], buf);
 450                 ms_last_mins = mins;
 451         }
 452
 453         if (force || secs != ms_last_secs) {
 454                 sprintf (buf, "%02d", secs);
 455                 display->set_text (_text_cells[MS_Seconds], buf);
 456                 ms_last_secs = secs;
 457         }
 458
 459         if (force || millisecs != ms_last_millisecs) {
 460                 sprintf (buf, "%03d", millisecs);
 461                 display->set_text (_text_cells[MS_Milliseconds], buf);
 462                 ms_last_millisecs = millisecs;
 463         }
 464 }
 465
 466 void
 467 AudioClock::set_timecode (framepos_t when, bool force)
 468 {
 469         char buf[32];
 470         Timecode::Time TC;
 471
 472         if (is_duration) {
 473                 _session->timecode_duration (when, TC);
 474         } else {
 475                 _session->timecode_time (when, TC);
 476         }
 477
 478         if (force || TC.hours != last_hrs || TC.negative != last_negative) {
 479                 if (TC.negative) {
 480                         sprintf (buf, "-%0*" PRIu32, field_length[Timecode_Hours], TC.hours);
 481                 } else {
 482                         sprintf (buf, " %0*" PRIu32, field_length[Timecode_Hours], TC.hours);
 483                 }
 484                 display->set_text (_text_cells[Timecode_Hours], buf);
 485                 last_hrs = TC.hours;
 486                 last_negative = TC.negative;
 487         }
 488
 489         if (force || TC.minutes != last_mins) {
 490                 sprintf (buf, "%0*" PRIu32, field_length[Timecode_Minutes], TC.minutes);
 491                 display->set_text (_text_cells[Timecode_Minutes], buf);
 492                 last_mins = TC.minutes;
 493         }
 494
 495         if (force || TC.seconds != last_secs) {
 496                 sprintf (buf, "%0*" PRIu32, field_length[Timecode_Seconds], TC.seconds);
 497                 display->set_text (_text_cells[Timecode_Seconds], buf);
 498                 last_secs = TC.seconds;
 499         }
 500
 501         if (force || TC.frames != last_frames) {
 502                 sprintf (buf, "%0*" PRIu32, field_length[Timecode_Frames], TC.frames);
 503                 display->set_text (_text_cells[Timecode_Frames], buf);
 504                 last_frames = TC.frames;
 505         }
 506
 507         if (supplemental_right) {
 508                 double timecode_frames = _session->timecode_frames_per_second();
 509                 bool drop;
 510
 511                 if ((fabs(timecode_frames - 29.97) < 0.0001) || timecode_frames == 30) {
 512                         if (_session->timecode_drop_frames()) {
 513                                 drop = true;
 514                         } else {
 515                                 drop = false;
 516                         }
 517                 }
 518
 519                 if (fmod(timecode_frames, 1.0) == 0.0) {
 520                         sprintf (buf, "%u %s", int (timecode_frames), (drop ? "D" : ""));
 521                 } else {
 522                         sprintf (buf, "%.2f %s", timecode_frames, (drop ? "D" : ""));
 523                 }
 524
 525                 supplemental_right->set_text (_text_cells[LowerRight2], buf);
 526         }
 527 }
 528
 529 void
 530 AudioClock::set_bbt (framepos_t when, bool force)
 531 {
 532         char buf[16];
 533         Timecode::BBT_Time BBT;
 534
 535         /* handle a common case */
 536         if (is_duration) {
 537                 if (when == 0) {
 538                         BBT.bars = 0;
 539                         BBT.beats = 0;
 540                         BBT.ticks = 0;
 541                 } else {
 542                         _session->tempo_map().bbt_time (when, BBT);
 543                         BBT.bars--;
 544                         BBT.beats--;
 545                 }
 546         } else {
 547                 _session->tempo_map().bbt_time (when, BBT);
 548         }
 549
 550         sprintf (buf, "%0*" PRIu32, field_length[Bars], BBT.bars);
 551         if (force || _text_cells[Bars]->get_text () != buf) {
 552                 display->set_text (_text_cells[Bars], buf);
 553         }
 554         sprintf (buf, "%0*" PRIu32, field_length[Beats], BBT.beats);
 555         if (force || _text_cells[Beats]->get_text () != buf) {
 556                 display->set_text (_text_cells[Beats], buf);
 557         }
 558         sprintf (buf, "%0*" PRIu32, field_length[Ticks], BBT.ticks);
 559         if (force || _text_cells[Ticks]->get_text () != buf) {
 560                 display->set_text (_text_cells[Ticks], buf);
 561         }
 562
 563         if (supplemental_right) {
 564                 framepos_t pos;
 565
 566                 if (bbt_reference_time < 0) {
 567                         pos = when;
 568                 } else {
 569                         pos = bbt_reference_time;
 570                 }
 571
 572                 TempoMetric m (_session->tempo_map().metric_at (pos));
 573
 574                 sprintf (buf, "%-5.2f", m.tempo().beats_per_minute());
 575                 supplemental_left->set_text (_text_cells[LowerLeft2], buf);
 576
 577                 sprintf (buf, "%g|%g", m.meter().beats_per_bar(), m.meter().note_divisor());
 578                 supplemental_right->set_text (_text_cells[LowerRight2], buf);
 579         }
 580 }
 581
 582 void
 583 AudioClock::set_session (Session *s)
 584 {
 585         SessionHandlePtr::set_session (s);
 586
 587         if (_session) {
 588
 589                 _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&AudioClock::session_configuration_changed, this, _1), gui_context());
 590
 591                 XMLProperty* prop;
 592                 XMLNode* node = _session->extra_xml (X_("ClockModes"));
 593                 AudioClock::Mode amode;
 594
 595                 if (node) {
 596                         if ((prop = node->property (_name)) != 0) {
 597                                 amode = AudioClock::Mode (string_2_enum (prop->value(), amode));
 598                                 set_mode (amode);
 599                         }
 600                 }
 601
 602                 set (last_when, true);
 603         }
 604 }
 605
 606 void
 607 AudioClock::edit_next_field ()
 608 {
 609         /* move on to the next field.
 610          */
 611
 612         switch (editing_field) {
 613
 614                 /* Timecode */
 615
 616         case Timecode_Hours:
 617                 editing_field = Timecode_Minutes;
 618                 display->start_editing (_text_cells[Timecode_Minutes]);
 619                 break;
 620         case Timecode_Minutes:
 621                 editing_field = Timecode_Seconds;
 622                 display->start_editing (_text_cells[Timecode_Seconds]);
 623                 break;
 624         case Timecode_Seconds:
 625                 editing_field = Timecode_Frames;
 626                 display->start_editing (_text_cells[Timecode_Frames]);
 627                 break;
 628         case Timecode_Frames:
 629                 end_edit ();
 630                 break;
 631
 632                 /* Min:Sec */
 633
 634         case MS_Hours:
 635                 editing_field = MS_Minutes;
 636                 display->start_editing (_text_cells[MS_Minutes]);
 637                 break;
 638         case MS_Minutes:
 639                 editing_field = MS_Seconds;
 640                 display->start_editing (_text_cells[MS_Seconds]);
 641                 break;
 642         case MS_Seconds:
 643                 editing_field = MS_Milliseconds;
 644                 display->start_editing (_text_cells[MS_Milliseconds]);
 645                 break;
 646         case MS_Milliseconds:
 647                 end_edit ();
 648                 break;
 649
 650                 /* BBT */
 651
 652         case Bars:
 653                 editing_field = Beats;
 654                 display->start_editing (_text_cells[Beats]);
 655                 break;
 656         case Beats:
 657                 editing_field = Ticks;
 658                 display->start_editing (_text_cells[Ticks]);
 659                 break;
 660         case Ticks:
 661                 end_edit ();
 662                 break;
 663
 664                 /* audio frames */
 665         case AudioFrames:
 666                 end_edit ();
 667                 break;
 668
 669         default:
 670                 break;
 671         }
 672
 673         key_entry_state = 0;
 674 }
 675
 676 bool
 677 AudioClock::on_key_press_event (GdkEventKey* ev)
 678 {
 679         /* return true for keys that we MIGHT use
 680            at release
 681         */
 682         switch (ev->keyval) {
 683         case GDK_0:
 684         case GDK_KP_0:
 685         case GDK_1:
 686         case GDK_KP_1:
 687         case GDK_2:
 688         case GDK_KP_2:
 689         case GDK_3:
 690         case GDK_KP_3:
 691         case GDK_4:
 692         case GDK_KP_4:
 693         case GDK_5:
 694         case GDK_KP_5:
 695         case GDK_6:
 696         case GDK_KP_6:
 697         case GDK_7:
 698         case GDK_KP_7:
 699         case GDK_8:
 700         case GDK_KP_8:
 701         case GDK_9:
 702         case GDK_KP_9:
 703         case GDK_period:
 704         case GDK_comma:
 705         case GDK_KP_Decimal:
 706         case GDK_Tab:
 707         case GDK_Return:
 708         case GDK_KP_Enter:
 709         case GDK_Escape:
 710                 return true;
 711         default:
 712                 return false;
 713         }
 714 }
 715
 716 bool
 717 AudioClock::on_key_release_event (GdkEventKey *ev)
 718 {
 719         if (editing_field == 0) {
 720                 return false;
 721         }
 722
 723         CairoTextCell *cell = _text_cells[editing_field];
 724
 725         if (!cell) {
 726                 return false;
 727         }
 728
 729         string new_text;
 730         char new_char = 0;
 731         bool move_on = false;
 732
 733         switch (ev->keyval) {
 734         case GDK_0:
 735         case GDK_KP_0:
 736                 new_char = '0';
 737                 break;
 738         case GDK_1:
 739         case GDK_KP_1:
 740                 new_char = '1';
 741                 break;
 742         case GDK_2:
 743         case GDK_KP_2:
 744                 new_char = '2';
 745                 break;
 746         case GDK_3:
 747         case GDK_KP_3:
 748                 new_char = '3';
 749                 break;
 750         case GDK_4:
 751         case GDK_KP_4:
 752                 new_char = '4';
 753                 break;
 754         case GDK_5:
 755         case GDK_KP_5:
 756                 new_char = '5';
 757                 break;
 758         case GDK_6:
 759         case GDK_KP_6:
 760                 new_char = '6';
 761                 break;
 762         case GDK_7:
 763         case GDK_KP_7:
 764                 new_char = '7';
 765                 break;
 766         case GDK_8:
 767         case GDK_KP_8:
 768                 new_char = '8';
 769                 break;
 770         case GDK_9:
 771         case GDK_KP_9:
 772                 new_char = '9';
 773                 break;
 774
 775         case GDK_period:
 776         case GDK_comma:
 777         case GDK_KP_Decimal:
 778                 if (_mode == MinSec && editing_field == MS_Seconds) {
 779                         new_char = '.'; // XXX i18n
 780                 } else {
 781                         return false;
 782                 }
 783                 break;
 784
 785         case GDK_Tab:
 786         case GDK_Return:
 787         case GDK_KP_Enter:
 788                 move_on = true;
 789                 break;
 790
 791         case GDK_Escape:
 792                 end_edit ();
 793                 ChangeAborted();  /*  EMIT SIGNAL  */
 794                 return true;
 795
 796         default:
 797                 return false;
 798         }
 799
 800         if (!move_on) {
 801
 802                 if (key_entry_state == 0) {
 803
 804                         /* initialize with a fresh new string */
 805
 806                         if (editing_field != AudioFrames) {
 807                                 for (uint32_t xn = 0; xn < field_length[editing_field] - 1; ++xn) {
 808                                         new_text += '0';
 809                                 }
 810                         } else {
 811                                 new_text = "";
 812                         }
 813
 814                 } else {
 815
 816                         string existing = cell->get_text();
 817                         if (existing.length() >= field_length[editing_field]) {
 818                                 new_text = existing.substr (1, field_length[editing_field] - 1);
 819                         } else {
 820                                 new_text = existing.substr (0, field_length[editing_field] - 1);
 821                         }
 822                 }
 823
 824                 new_text += new_char;
 825                 display->set_text (cell, new_text);
 826                 _canonical_time_is_displayed = true;
 827                 key_entry_state++;
 828         }
 829
 830         if (key_entry_state == field_length[editing_field]) {
 831                 move_on = true;
 832         }
 833
 834         if (move_on) {
 835
 836                 if (key_entry_state) {
 837
 838                         /* if key_entry_state != then we edited the text
 839                          */
 840
 841                         char buf[16];
 842
 843                         switch (editing_field) {
 844                         case Timecode_Hours:
 845                         case Timecode_Minutes:
 846                         case Timecode_Seconds:
 847                         case Timecode_Frames:
 848                                 // Check Timecode fields for sanity (may also adjust fields)
 849                                 timecode_sanitize_display();
 850                                 break;
 851                         case Bars:
 852                         case Beats:
 853                         case Ticks:
 854                                 // Bars should never be zero, unless this clock is for a duration
 855                                 if (atoi (_text_cells[Bars]->get_text()) == 0 && !is_duration) {
 856                                         snprintf (buf, sizeof (buf), "%0*" PRIu32, field_length[Bars], 1);
 857                                         display->set_text (_text_cells[Bars], buf);
 858                                         _canonical_time_is_displayed = true;
 859                                 }
 860                                 //  beats should never be zero, unless this clock is for a duration
 861                                 if (atoi (_text_cells[Beats]->get_text()) == 0 && !is_duration) {
 862                                         snprintf (buf, sizeof (buf), "%0*" PRIu32, field_length[Beats], 1);
 863                                         display->set_text (_text_cells[Beats], buf);
 864                                         _canonical_time_is_displayed = true;
 865                                 }
 866                                 break;
 867                         default:
 868                                 break;
 869                         }
 870
 871                         ValueChanged(); /* EMIT_SIGNAL */
 872                 }
 873
 874                 edit_next_field ();
 875         }
 876
 877         //if user hit Enter, lose focus
 878         switch (ev->keyval) {
 879         case GDK_Return:
 880         case GDK_KP_Enter:
 881                 end_edit ();
 882         }
 883
 884         return true;
 885 }
 886
 887 bool
 888 AudioClock::button_press (GdkEventButton *ev, CairoCell* cell)
 889 {
 890         switch (ev->button) {
 891         case 1:
 892                 if (cell) {
 893                         editing_field = (Field) cell->id ();
 894                         display->start_editing (cell);
 895                 }
 896
 897                 Keyboard::magic_widget_grab_focus ();
 898
 899                 /* make absolutely sure that the pointer is grabbed */
 900                 gdk_pointer_grab(ev->window,false ,
 901                                  GdkEventMask( Gdk::POINTER_MOTION_MASK | Gdk::BUTTON_PRESS_MASK |Gdk::BUTTON_RELEASE_MASK),
 902                                  NULL,NULL,ev->time);
 903                 dragging = true;
 904                 drag_accum = 0;
 905                 drag_start_y = ev->y;
 906                 drag_y = ev->y;
 907                 break;
 908
 909         default:
 910                 return false;
 911                 break;
 912         }
 913
 914         return true;
 915 }
 916
 917 bool
 918 AudioClock::button_release (GdkEventButton *ev, CairoCell*)
 919 {
 920         if (dragging) {
 921                 gdk_pointer_ungrab (GDK_CURRENT_TIME);
 922                 dragging = false;
 923                 if (ev->y > drag_start_y+1 || ev->y < drag_start_y-1 || Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)){
 924                         // we actually dragged so return without setting editing focus, or we shift clicked
 925                         return true;
 926                 }
 927         }
 928
 929         if (!editable) {
 930                 if (ops_menu == 0) {
 931                         build_ops_menu ();
 932                 }
 933                 ops_menu->popup (1, ev->time);
 934                 return true;
 935         }
 936
 937         if (Keyboard::is_context_menu_event (ev)) {
 938                 if (ops_menu == 0) {
 939                         build_ops_menu ();
 940                 }
 941                 ops_menu->popup (1, ev->time);
 942                 return true;
 943         }
 944
 945         return true;
 946 }
 947
 948 bool
 949 AudioClock::scroll (GdkEventScroll *ev, CairoCell* cell)
 950 {
 951         if (_session == 0) {
 952                 return false;
 953         }
 954
 955         framepos_t frames = 0;
 956
 957         switch (ev->direction) {
 958
 959         case GDK_SCROLL_UP:
 960                 frames = get_frames ((Field) cell->id());
 961                 if (frames != 0) {
 962                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 963                                 frames *= 10;
 964                         }
 965                         set (current_time() + frames, true);
 966                         ValueChanged (); /* EMIT_SIGNAL */
 967                 }
 968                 break;
 969
 970         case GDK_SCROLL_DOWN:
 971                 frames = get_frames ((Field) cell->id());
 972                 if (frames != 0) {
 973                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 974                                 frames *= 10;
 975                         }
 976
 977                         if ((double)current_time() - (double)frames < 0.0) {
 978                                 set (0, true);
 979                         } else {
 980                                 set (current_time() - frames, true);
 981                         }
 982
 983                         ValueChanged (); /* EMIT_SIGNAL */
 984                 }
 985                 break;
 986
 987         default:
 988                 return false;
 989                 break;
 990         }
 991
 992         return true;
 993 }
 994
 995 bool
 996 AudioClock::field_motion_notify_event (GdkEventMotion *ev, Field field)
 997 {
 998         if (_session == 0 || !dragging) {
 999                 return false;
1000         }
1001
1002         float pixel_frame_scale_factor = 0.2f;
1003
1004 /*
1005         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier))  {
1006                 pixel_frame_scale_factor = 0.1f;
1007         }
1008
1009
1010         if (Keyboard::modifier_state_contains (ev->state,
1011                                                Keyboard::PrimaryModifier|Keyboard::SecondaryModifier)) {
1012
1013                 pixel_frame_scale_factor = 0.025f;
1014         }
1015 */
1016         double y_delta = ev->y - drag_y;
1017
1018         drag_accum +=  y_delta*pixel_frame_scale_factor;
1019
1020         drag_y = ev->y;
1021
1022         if (trunc(drag_accum) != 0) {
1023
1024                 framepos_t frames;
1025                 framepos_t pos;
1026                 int dir;
1027                 dir = (drag_accum < 0 ? 1:-1);
1028                 pos = current_time();
1029                 frames = get_frames (field,pos,dir);
1030
1031                 if (frames  != 0 &&  frames * drag_accum < current_time()) {
1032
1033                         set ((framepos_t) floor (pos - drag_accum * frames), false); // minus because up is negative in computer-land
1034
1035                 } else {
1036                         set (0 , false);
1037
1038                 }
1039
1040                 drag_accum= 0;
1041                 ValueChanged();  /* EMIT_SIGNAL */
1042
1043
1044         }
1045
1046         return true;
1047 }
1048
1049 framepos_t
1050 AudioClock::get_frames (Field field, framepos_t pos, int dir)
1051 {
1052         framecnt_t f = 0;
1053         Timecode::BBT_Time BBT;
1054         switch (field) {
1055         case Timecode_Hours:
1056                 f = (framecnt_t) floor (3600.0 * _session->frame_rate());
1057                 break;
1058         case Timecode_Minutes:
1059                 f = (framecnt_t) floor (60.0 * _session->frame_rate());
1060                 break;
1061         case Timecode_Seconds:
1062                 f = _session->frame_rate();
1063                 break;
1064         case Timecode_Frames:
1065                 f = (framecnt_t) floor (_session->frame_rate() / _session->timecode_frames_per_second());
1066                 break;
1067
1068         case AudioFrames:
1069                 f = 1;
1070                 break;
1071
1072         case MS_Hours:
1073                 f = (framecnt_t) floor (3600.0 * _session->frame_rate());
1074                 break;
1075         case MS_Minutes:
1076                 f = (framecnt_t) floor (60.0 * _session->frame_rate());
1077                 break;
1078         case MS_Seconds:
1079                 f = (framecnt_t) _session->frame_rate();
1080                 break;
1081         case MS_Milliseconds:
1082                 f = (framecnt_t) floor (_session->frame_rate() / 1000.0);
1083                 break;
1084
1085         case Bars:
1086                 BBT.bars = 1;
1087                 BBT.beats = 0;
1088                 BBT.ticks = 0;
1089                 f = _session->tempo_map().bbt_duration_at (pos,BBT,dir);
1090                 break;
1091         case Beats:
1092                 BBT.bars = 0;
1093                 BBT.beats = 1;
1094                 BBT.ticks = 0;
1095                 f = _session->tempo_map().bbt_duration_at(pos,BBT,dir);
1096                 break;
1097         case Ticks:
1098                 BBT.bars = 0;
1099                 BBT.beats = 0;
1100                 BBT.ticks = 1;
1101                 f = _session->tempo_map().bbt_duration_at(pos,BBT,dir);
1102                 break;
1103         default:
1104                 error << string_compose (_("programming error: %1"), "attempt to get frames from non-text field!") << endmsg;
1105                 f = 0;
1106                 break;
1107         }
1108
1109         return f;
1110 }
1111
1112 framepos_t
1113 AudioClock::current_time (framepos_t pos) const
1114 {
1115         if (!_canonical_time_is_displayed) {
1116                 return _canonical_time;
1117         }
1118
1119         framepos_t ret = 0;
1120
1121         switch (_mode) {
1122         case Timecode:
1123                 ret = timecode_frame_from_display ();
1124                 break;
1125         case BBT:
1126                 ret = bbt_frame_from_display (pos);
1127                 break;
1128
1129         case MinSec:
1130                 ret = minsec_frame_from_display ();
1131                 break;
1132
1133         case Frames:
1134                 ret = audio_frame_from_display ();
1135                 break;
1136
1137         case Off:
1138                 break;
1139         }
1140
1141         return ret;
1142 }
1143
1144 framepos_t
1145 AudioClock::current_duration (framepos_t pos) const
1146 {
1147         framepos_t ret = 0;
1148
1149         switch (_mode) {
1150         case Timecode:
1151                 ret = timecode_frame_from_display ();
1152                 break;
1153         case BBT:
1154                 ret = bbt_frame_duration_from_display (pos);
1155                 break;
1156
1157         case MinSec:
1158                 ret = minsec_frame_from_display ();
1159                 break;
1160
1161         case Frames:
1162                 ret = audio_frame_from_display ();
1163                 break;
1164
1165         case Off:
1166                 break;
1167         }
1168
1169         return ret;
1170 }
1171
1172 void
1173 AudioClock::timecode_sanitize_display()
1174 {
1175         // Check Timecode fields for sanity, possibly adjusting values
1176         if (atoi (_text_cells[Timecode_Minutes]->get_text()) > 59) {
1177                 display->set_text (_text_cells[Timecode_Minutes], "59");
1178                 _canonical_time_is_displayed = true;
1179         }
1180
1181         if (atoi (_text_cells[Timecode_Seconds]->get_text()) > 59) {
1182                 display->set_text (_text_cells[Timecode_Seconds], "59");
1183                 _canonical_time_is_displayed = true;
1184         }
1185
1186         switch ((long)rint(_session->timecode_frames_per_second())) {
1187         case 24:
1188                 if (atoi (_text_cells[Timecode_Frames]->get_text()) > 23) {
1189                         display->set_text (_text_cells[Timecode_Frames], "23");
1190                         _canonical_time_is_displayed = true;
1191                 }
1192                 break;
1193         case 25:
1194                 if (atoi (_text_cells[Timecode_Frames]->get_text()) > 24) {
1195                         display->set_text (_text_cells[Timecode_Frames], "24");
1196                         _canonical_time_is_displayed = true;
1197                 }
1198                 break;
1199         case 30:
1200                 if (atoi (_text_cells[Timecode_Frames]->get_text()) > 29) {
1201                         display->set_text (_text_cells[Timecode_Frames], "29");
1202                         _canonical_time_is_displayed = true;
1203                 }
1204                 break;
1205         default:
1206                 break;
1207         }
1208
1209         if (_session->timecode_drop_frames()) {
1210                 if ((atoi (_text_cells[Timecode_Minutes]->get_text()) % 10) && (atoi (_text_cells[Timecode_Seconds]->get_text()) == 0) && (atoi (_text_cells[Timecode_Frames]->get_text()) < 2)) {
1211                         display->set_text (_text_cells[Timecode_Frames], "02");
1212                         _canonical_time_is_displayed = true;
1213                 }
1214         }
1215 }
1216
1217 /** This is necessary because operator[] isn't const with std::map.
1218  *  @param f Field.
1219  *  @return Label widget.
1220  */
1221 CairoTextCell*
1222 AudioClock::label (Field f) const
1223 {
1224         std::map<Field,CairoTextCell*>::const_iterator i = _text_cells.find (f);
1225         assert (i != _text_cells.end ());
1226
1227         return i->second;
1228 }
1229
1230 framepos_t
1231 AudioClock::timecode_frame_from_display () const
1232 {
1233         if (_session == 0) {
1234                 return 0;
1235         }
1236
1237         Timecode::Time TC;
1238         framepos_t sample;
1239
1240         TC.hours = atoi (label (Timecode_Hours)->get_text());
1241         TC.minutes = atoi (label (Timecode_Minutes)->get_text());
1242         TC.seconds = atoi (label (Timecode_Seconds)->get_text());
1243         TC.frames = atoi (label (Timecode_Frames)->get_text());
1244         TC.rate = _session->timecode_frames_per_second();
1245         TC.drop= _session->timecode_drop_frames();
1246
1247         _session->timecode_to_sample (TC, sample, false /* use_offset */, false /* use_subframes */ );
1248
1249
1250 #if 0
1251 #define Timecode_SAMPLE_TEST_1
1252 #define Timecode_SAMPLE_TEST_2
1253 #define Timecode_SAMPLE_TEST_3
1254 #define Timecode_SAMPLE_TEST_4
1255 #define Timecode_SAMPLE_TEST_5
1256 #define Timecode_SAMPLE_TEST_6
1257 #define Timecode_SAMPLE_TEST_7
1258
1259         // Testcode for timecode<->sample conversions (P.S.)
1260         Timecode::Time timecode1;
1261         framepos_t sample1;
1262         framepos_t oldsample = 0;
1263         Timecode::Time timecode2;
1264         framecnt_t sample_increment;
1265
1266         sample_increment = (framecnt_t)rint(_session->frame_rate() / _session->timecode_frames_per_second);
1267
1268 #ifdef Timecode_SAMPLE_TEST_1
1269         // Test 1: use_offset = false, use_subframes = false
1270         cout << "use_offset = false, use_subframes = false" << endl;
1271         for (int i = 0; i < 108003; i++) {
1272                 _session->timecode_to_sample( timecode1, sample1, false /* use_offset */, false /* use_subframes */ );
1273                 _session->sample_to_timecode( sample1, timecode2, false /* use_offset */, false /* use_subframes */ );
1274
1275                 if ((i > 0) && ( ((sample1 - oldsample) != sample_increment) && ((sample1 - oldsample) != (sample_increment + 1)) && ((sample1 - oldsample) != (sample_increment - 1)))) {
1276                         cout << "ERROR: sample increment not right: " << (sample1 - oldsample) << " != " << sample_increment << endl;
1277                         cout << "timecode1: " << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1278                         cout << "sample: " << sample1 << endl;
1279                         cout << "sample: " << sample1 << " -> ";
1280                         cout << "timecode2: " << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1281                         break;
1282                 }
1283
1284                 if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames) {
1285                         cout << "ERROR: timecode2 not equal timecode1" << endl;
1286                         cout << "timecode1: " << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1287                         cout << "sample: " << sample1 << endl;
1288                         cout << "sample: " << sample1 << " -> ";
1289                         cout << "timecode2: " << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1290                         break;
1291                 }
1292                 oldsample = sample1;
1293                 _session->timecode_increment( timecode1 );
1294         }
1295
1296         cout << "sample_increment: " << sample_increment << endl;
1297         cout << "sample: " << sample1 << " -> ";
1298         cout << "timecode: " << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1299 #endif
1300
1301 #ifdef Timecode_SAMPLE_TEST_2
1302         // Test 2: use_offset = true, use_subframes = false
1303         cout << "use_offset = true, use_subframes = false" << endl;
1304
1305         timecode1.hours = 0;
1306         timecode1.minutes = 0;
1307         timecode1.seconds = 0;
1308         timecode1.frames = 0;
1309         timecode1.subframes = 0;
1310         sample1 = oldsample = 0;
1311
1312         _session->sample_to_timecode( sample1, timecode1, true /* use_offset */, false /* use_subframes */ );
1313         cout << "Starting at sample: " << sample1 << " -> ";
1314         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << endl;
1315
1316         for (int i = 0; i < 108003; i++) {
1317                 _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, false /* use_subframes */ );
1318                 _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, false /* use_subframes */ );
1319
1320 //     cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1321 //     cout << "sample: " << sample1 << endl;
1322 //     cout << "sample: " << sample1 << " -> ";
1323 //     cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1324
1325                 if ((i > 0) && ( ((sample1 - oldsample) != sample_increment) && ((sample1 - oldsample) != (sample_increment + 1)) && ((sample1 - oldsample) != (sample_increment - 1)))) {
1326                         cout << "ERROR: sample increment not right: " << (sample1 - oldsample) << " != " << sample_increment << endl;
1327                         cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1328                         cout << "sample: " << sample1 << endl;
1329                         cout << "sample: " << sample1 << " -> ";
1330                         cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1331                         break;
1332                 }
1333
1334                 if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames) {
1335                         cout << "ERROR: timecode2 not equal timecode1" << endl;
1336                         cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1337                         cout << "sample: " << sample1 << endl;
1338                         cout << "sample: " << sample1 << " -> ";
1339                         cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1340                         break;
1341                 }
1342                 oldsample = sample1;
1343                 _session->timecode_increment( timecode1 );
1344         }
1345
1346         cout << "sample_increment: " << sample_increment << endl;
1347         cout << "sample: " << sample1 << " -> ";
1348         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1349 #endif
1350
1351 #ifdef Timecode_SAMPLE_TEST_3
1352         // Test 3: use_offset = true, use_subframes = false, decrement
1353         cout << "use_offset = true, use_subframes = false, decrement" << endl;
1354
1355         _session->sample_to_timecode( sample1, timecode1, true /* use_offset */, false /* use_subframes */ );
1356         cout << "Starting at sample: " << sample1 << " -> ";
1357         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << endl;
1358
1359         for (int i = 0; i < 108003; i++) {
1360                 _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, false /* use_subframes */ );
1361                 _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, false /* use_subframes */ );
1362
1363 //     cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1364 //     cout << "sample: " << sample1 << endl;
1365 //     cout << "sample: " << sample1 << " -> ";
1366 //     cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1367
1368                 if ((i > 0) && ( ((oldsample - sample1) != sample_increment) && ((oldsample - sample1) != (sample_increment + 1)) && ((oldsample - sample1) != (sample_increment - 1)))) {
1369                         cout << "ERROR: sample increment not right: " << (oldsample - sample1) << " != " << sample_increment << endl;
1370                         cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1371                         cout << "sample: " << sample1 << endl;
1372                         cout << "sample: " << sample1 << " -> ";
1373                         cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1374                         break;
1375                 }
1376
1377                 if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames) {
1378                         cout << "ERROR: timecode2 not equal timecode1" << endl;
1379                         cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1380                         cout << "sample: " << sample1 << endl;
1381                         cout << "sample: " << sample1 << " -> ";
1382                         cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1383                         break;
1384                 }
1385                 oldsample = sample1;
1386                 _session->timecode_decrement( timecode1 );
1387         }
1388
1389         cout << "sample_decrement: " << sample_increment << endl;
1390         cout << "sample: " << sample1 << " -> ";
1391         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1392 #endif
1393
1394
1395 #ifdef Timecode_SAMPLE_TEST_4
1396         // Test 4: use_offset = true, use_subframes = true
1397         cout << "use_offset = true, use_subframes = true" << endl;
1398
1399         for (long sub = 5; sub < 80; sub += 5) {
1400                 timecode1.hours = 0;
1401                 timecode1.minutes = 0;
1402                 timecode1.seconds = 0;
1403                 timecode1.frames = 0;
1404                 timecode1.subframes = 0;
1405                 sample1 = oldsample = (sample_increment * sub) / 80;
1406
1407                 _session->sample_to_timecode( sample1, timecode1, true /* use_offset */, true /* use_subframes */ );
1408
1409                 cout << "starting at sample: " << sample1 << " -> ";
1410                 cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << endl;
1411
1412                 for (int i = 0; i < 108003; i++) {
1413                         _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, true /* use_subframes */ );
1414                         _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, true /* use_subframes */ );
1415
1416                         if ((i > 0) && ( ((sample1 - oldsample) != sample_increment) && ((sample1 - oldsample) != (sample_increment + 1)) && ((sample1 - oldsample) != (sample_increment - 1)))) {
1417                                 cout << "ERROR: sample increment not right: " << (sample1 - oldsample) << " != " << sample_increment << endl;
1418                                 cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1419                                 cout << "sample: " << sample1 << endl;
1420                                 cout << "sample: " << sample1 << " -> ";
1421                                 cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1422                                 //break;
1423                         }
1424
1425                         if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames || timecode2.subframes != timecode1.subframes) {
1426                                 cout << "ERROR: timecode2 not equal timecode1" << endl;
1427                                 cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1428                                 cout << "sample: " << sample1 << endl;
1429                                 cout << "sample: " << sample1 << " -> ";
1430                                 cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1431                                 break;
1432                         }
1433                         oldsample = sample1;
1434                         _session->timecode_increment( timecode1 );
1435                 }
1436
1437                 cout << "sample_increment: " << sample_increment << endl;
1438                 cout << "sample: " << sample1 << " -> ";
1439                 cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1440
1441                 for (int i = 0; i < 108003; i++) {
1442                         _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, true /* use_subframes */ );
1443                         _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, true /* use_subframes */ );
1444
1445                         if ((i > 0) && ( ((oldsample - sample1) != sample_increment) && ((oldsample - sample1) != (sample_increment + 1)) && ((oldsample - sample1) != (sample_increment - 1)))) {
1446                                 cout << "ERROR: sample increment not right: " << (oldsample - sample1) << " != " << sample_increment << endl;
1447                                 cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1448                                 cout << "sample: " << sample1 << endl;
1449                                 cout << "sample: " << sample1 << " -> ";
1450                                 cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1451                                 //break;
1452                         }
1453
1454                         if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames || timecode2.subframes != timecode1.subframes) {
1455                                 cout << "ERROR: timecode2 not equal timecode1" << endl;
1456                                 cout << "timecode1: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1457                                 cout << "sample: " << sample1 << endl;
1458                                 cout << "sample: " << sample1 << " -> ";
1459                                 cout << "timecode2: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1460                                 break;
1461                         }
1462                         oldsample = sample1;
1463                         _session->timecode_decrement( timecode1 );
1464                 }
1465
1466                 cout << "sample_decrement: " << sample_increment << endl;
1467                 cout << "sample: " << sample1 << " -> ";
1468                 cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1469         }
1470 #endif
1471
1472
1473 #ifdef Timecode_SAMPLE_TEST_5
1474         // Test 5: use_offset = true, use_subframes = false, increment seconds
1475         cout << "use_offset = true, use_subframes = false, increment seconds" << endl;
1476
1477         timecode1.hours = 0;
1478         timecode1.minutes = 0;
1479         timecode1.seconds = 0;
1480         timecode1.frames = 0;
1481         timecode1.subframes = 0;
1482         sample1 = oldsample = 0;
1483         sample_increment = _session->frame_rate();
1484
1485         _session->sample_to_timecode( sample1, timecode1, true /* use_offset */, false /* use_subframes */ );
1486         cout << "Starting at sample: " << sample1 << " -> ";
1487         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << endl;
1488
1489         for (int i = 0; i < 3600; i++) {
1490                 _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, false /* use_subframes */ );
1491                 _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, false /* use_subframes */ );
1492
1493 //     cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1494 //     cout << "sample: " << sample1 << endl;
1495 //     cout << "sample: " << sample1 << " -> ";
1496 //     cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1497
1498 //     if ((i > 0) && ( ((sample1 - oldsample) != sample_increment) && ((sample1 - oldsample) != (sample_increment + 1)) && ((sample1 - oldsample) != (sample_increment - 1))))
1499 //     {
1500 //       cout << "ERROR: sample increment not right: " << (sample1 - oldsample) << " != " << sample_increment << endl;
1501 //       break;
1502 //     }
1503
1504                 if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames) {
1505                         cout << "ERROR: timecode2 not equal timecode1" << endl;
1506                         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1507                         cout << "sample: " << sample1 << endl;
1508                         cout << "sample: " << sample1 << " -> ";
1509                         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1510                         break;
1511                 }
1512                 oldsample = sample1;
1513                 _session->timecode_increment_seconds( timecode1 );
1514         }
1515
1516         cout << "sample_increment: " << sample_increment << endl;
1517         cout << "sample: " << sample1 << " -> ";
1518         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1519 #endif
1520
1521
1522 #ifdef Timecode_SAMPLE_TEST_6
1523         // Test 6: use_offset = true, use_subframes = false, increment minutes
1524         cout << "use_offset = true, use_subframes = false, increment minutes" << endl;
1525
1526         timecode1.hours = 0;
1527         timecode1.minutes = 0;
1528         timecode1.seconds = 0;
1529         timecode1.frames = 0;
1530         timecode1.subframes = 0;
1531         sample1 = oldsample = 0;
1532         sample_increment = _session->frame_rate() * 60;
1533
1534         _session->sample_to_timecode( sample1, timecode1, true /* use_offset */, false /* use_subframes */ );
1535         cout << "Starting at sample: " << sample1 << " -> ";
1536         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << endl;
1537
1538         for (int i = 0; i < 60; i++) {
1539                 _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, false /* use_subframes */ );
1540                 _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, false /* use_subframes */ );
1541
1542 //     cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1543 //     cout << "sample: " << sample1 << endl;
1544 //     cout << "sample: " << sample1 << " -> ";
1545 //     cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1546
1547 //     if ((i > 0) && ( ((sample1 - oldsample) != sample_increment) && ((sample1 - oldsample) != (sample_increment + 1)) && ((sample1 - oldsample) != (sample_increment - 1))))
1548 //     {
1549 //       cout << "ERROR: sample increment not right: " << (sample1 - oldsample) << " != " << sample_increment << endl;
1550 //       break;
1551 //     }
1552
1553                 if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames) {
1554                         cout << "ERROR: timecode2 not equal timecode1" << endl;
1555                         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1556                         cout << "sample: " << sample1 << endl;
1557                         cout << "sample: " << sample1 << " -> ";
1558                         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1559                         break;
1560                 }
1561                 oldsample = sample1;
1562                 _session->timecode_increment_minutes( timecode1 );
1563         }
1564
1565         cout << "sample_increment: " << sample_increment << endl;
1566         cout << "sample: " << sample1 << " -> ";
1567         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1568 #endif
1569
1570 #ifdef Timecode_SAMPLE_TEST_7
1571         // Test 7: use_offset = true, use_subframes = false, increment hours
1572         cout << "use_offset = true, use_subframes = false, increment hours" << endl;
1573
1574         timecode1.hours = 0;
1575         timecode1.minutes = 0;
1576         timecode1.seconds = 0;
1577         timecode1.frames = 0;
1578         timecode1.subframes = 0;
1579         sample1 = oldsample = 0;
1580         sample_increment = _session->frame_rate() * 60 * 60;
1581
1582         _session->sample_to_timecode( sample1, timecode1, true /* use_offset */, false /* use_subframes */ );
1583         cout << "Starting at sample: " << sample1 << " -> ";
1584         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << endl;
1585
1586         for (int i = 0; i < 10; i++) {
1587                 _session->timecode_to_sample( timecode1, sample1, true /* use_offset */, false /* use_subframes */ );
1588                 _session->sample_to_timecode( sample1, timecode2, true /* use_offset */, false /* use_subframes */ );
1589
1590 //     cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1591 //     cout << "sample: " << sample1 << endl;
1592 //     cout << "sample: " << sample1 << " -> ";
1593 //     cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1594
1595 //     if ((i > 0) && ( ((sample1 - oldsample) != sample_increment) && ((sample1 - oldsample) != (sample_increment + 1)) && ((sample1 - oldsample) != (sample_increment - 1))))
1596 //     {
1597 //       cout << "ERROR: sample increment not right: " << (sample1 - oldsample) << " != " << sample_increment << endl;
1598 //       break;
1599 //     }
1600
1601                 if (timecode2.hours != timecode1.hours || timecode2.minutes != timecode1.minutes || timecode2.seconds != timecode2.seconds || timecode2.frames != timecode1.frames) {
1602                         cout << "ERROR: timecode2 not equal timecode1" << endl;
1603                         cout << "timecode: " << (timecode1.negative ? "-" : "") << timecode1.hours << ":" << timecode1.minutes << ":" << timecode1.seconds << ":" << timecode1.frames << "::" << timecode1.subframes << " -> ";
1604                         cout << "sample: " << sample1 << endl;
1605                         cout << "sample: " << sample1 << " -> ";
1606                         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1607                         break;
1608                 }
1609                 oldsample = sample1;
1610                 _session->timecode_increment_hours( timecode1 );
1611         }
1612
1613         cout << "sample_increment: " << sample_increment << endl;
1614         cout << "sample: " << sample1 << " -> ";
1615         cout << "timecode: " << (timecode2.negative ? "-" : "") << timecode2.hours << ":" << timecode2.minutes << ":" << timecode2.seconds << ":" << timecode2.frames << "::" << timecode2.subframes << endl;
1616 #endif
1617
1618 #endif
1619
1620         return sample;
1621 }
1622
1623 framepos_t
1624 AudioClock::minsec_frame_from_display () const
1625 {
1626         if (_session == 0) {
1627                 return 0;
1628         }
1629
1630         int hrs = atoi (label (MS_Hours)->get_text());
1631         int mins = atoi (label (MS_Minutes)->get_text());
1632         int secs = atoi (label (MS_Seconds)->get_text());
1633         int millisecs = atoi (label (MS_Milliseconds)->get_text());
1634
1635         framecnt_t sr = _session->frame_rate();
1636
1637         return (framepos_t) floor ((hrs * 60.0f * 60.0f * sr) + (mins * 60.0f * sr) + (secs * sr) + (millisecs * sr / 1000.0));
1638 }
1639
1640 framepos_t
1641 AudioClock::bbt_frame_from_display (framepos_t pos) const
1642 {
1643         if (_session == 0) {
1644                 error << "AudioClock::current_time() called with BBT mode but without session!" << endmsg;
1645                 return 0;
1646         }
1647
1648         AnyTime any;
1649         any.type = AnyTime::BBT;
1650
1651         any.bbt.bars = atoi (label (Bars)->get_text());
1652         any.bbt.beats = atoi (label (Beats)->get_text());
1653         any.bbt.ticks = atoi (label (Ticks)->get_text());
1654
1655         if (is_duration) {
1656                 any.bbt.bars++;
1657                 any.bbt.beats++;
1658                 return _session->any_duration_to_frames (pos, any);
1659         } else {
1660                 return _session->convert_to_frames (any);
1661         }
1662 }
1663
1664
1665 framepos_t
1666 AudioClock::bbt_frame_duration_from_display (framepos_t pos) const
1667 {
1668         if (_session == 0) {
1669                 error << "AudioClock::current_time() called with BBT mode but without session!" << endmsg;
1670                 return 0;
1671         }
1672
1673         Timecode::BBT_Time bbt;
1674
1675
1676         bbt.bars = atoi (label (Bars)->get_text());
1677         bbt.beats = atoi (label (Beats)->get_text());
1678         bbt.ticks = atoi (label (Ticks)->get_text());
1679
1680         return _session->tempo_map().bbt_duration_at(pos,bbt,1);
1681 }
1682
1683 framepos_t
1684 AudioClock::audio_frame_from_display () const
1685 {
1686         return (framepos_t) atoi (label (AudioFrames)->get_text ());
1687 }
1688
1689 void
1690 AudioClock::build_ops_menu ()
1691 {
1692         using namespace Menu_Helpers;
1693         ops_menu = new Menu;
1694         MenuList& ops_items = ops_menu->items();
1695         ops_menu->set_name ("ArdourContextMenu");
1696
1697         if (!Profile->get_sae()) {
1698                 ops_items.push_back (MenuElem (_("Timecode"), sigc::bind (sigc::mem_fun(*this, &AudioClock::set_mode), Timecode)));
1699         }
1700         ops_items.push_back (MenuElem (_("Bars:Beats"), sigc::bind (sigc::mem_fun(*this, &AudioClock::set_mode), BBT)));
1701         ops_items.push_back (MenuElem (_("Minutes:Seconds"), sigc::bind (sigc::mem_fun(*this, &AudioClock::set_mode), MinSec)));
1702         ops_items.push_back (MenuElem (_("Samples"), sigc::bind (sigc::mem_fun(*this, &AudioClock::set_mode), Frames)));
1703         ops_items.push_back (MenuElem (_("Off"), sigc::bind (sigc::mem_fun(*this, &AudioClock::set_mode), Off)));
1704
1705         if (editable && !is_duration && !_follows_playhead) {
1706                 ops_items.push_back (SeparatorElem());
1707                 ops_items.push_back (MenuElem (_("Set From Playhead"), sigc::mem_fun(*this, &AudioClock::set_from_playhead)));
1708                 ops_items.push_back (MenuElem (_("Locate to This Time"), sigc::mem_fun(*this, &AudioClock::locate)));
1709         }
1710 }
1711
1712 void
1713 AudioClock::set_from_playhead ()
1714 {
1715         if (!_session) {
1716                 return;
1717         }
1718
1719         set (_session->transport_frame());
1720         ValueChanged ();
1721 }
1722
1723 void
1724 AudioClock::locate ()
1725 {
1726         if (!_session || is_duration) {
1727                 return;
1728         }
1729
1730         _session->request_locate (current_time(), _session->transport_rolling ());
1731 }
1732
1733 void
1734 AudioClock::disconnect_signals ()
1735 {
1736         scroll_connection.disconnect ();
1737         button_press_connection.disconnect ();
1738         button_release_connection.disconnect ();
1739 }
1740
1741 void
1742 AudioClock::connect_signals ()
1743 {
1744         disconnect_signals ();
1745
1746         if (editable) {
1747                 scroll_connection = display->scroll.connect (sigc::mem_fun (*this, &AudioClock::scroll));
1748                 button_press_connection = display->button_press.connect (sigc::mem_fun (*this, &AudioClock::button_press));
1749                 button_release_connection = display->button_release.connect (sigc::mem_fun (*this, &AudioClock::button_release));
1750         }
1751 }
1752
1753 void
1754 AudioClock::set_mode (Mode m)
1755 {
1756         if (_mode == m) {
1757                 return;
1758         }
1759
1760         _mode = m;
1761
1762         display->clear_cells ();
1763
1764         if (supplemental_left) {
1765                 supplemental_left->clear_cells ();
1766                 supplemental_right->clear_cells ();
1767         }
1768
1769         switch (_mode) {
1770         case Timecode:
1771                 display->add_cell (_text_cells[Timecode_Hours]);
1772                 display->add_cell (_fixed_cells[Colon1]);
1773                 display->add_cell (_text_cells[Timecode_Minutes]);
1774                 display->add_cell (_fixed_cells[Colon2]);
1775                 display->add_cell (_text_cells[Timecode_Seconds]);
1776                 display->add_cell (_fixed_cells[Colon3]);
1777                 display->add_cell (_text_cells[Timecode_Frames]);
1778
1779                 if (supplemental_left) {
1780                         supplemental_left->add_cell (_text_cells[LowerLeft1]);
1781                         supplemental_left->add_cell (_text_cells[LowerLeft2]);
1782                         supplemental_right->add_cell (_text_cells[LowerRight1]);
1783                         supplemental_right->add_cell (_text_cells[LowerRight2]);
1784
1785                         supplemental_left->set_width_chars (_text_cells[LowerLeft1], 4);
1786                         supplemental_left->set_width_chars (_text_cells[LowerLeft2], 8);
1787
1788                         supplemental_right->set_width_chars (_text_cells[LowerRight1], 4);
1789                         supplemental_right->set_width_chars (_text_cells[LowerRight2], 6.25);
1790
1791                         supplemental_left->set_text (_text_cells[LowerLeft1], _("EXT"));
1792                         supplemental_right->set_text (_text_cells[LowerRight1], _("FPS"));
1793                 }
1794                 break;
1795
1796         case BBT:
1797                 display->add_cell (_text_cells[Bars]);
1798                 display->add_cell (_fixed_cells[Bar1]);
1799                 display->add_cell (_text_cells[Beats]);
1800                 display->add_cell (_fixed_cells[Bar2]);
1801                 display->add_cell (_text_cells[Ticks]);
1802                 if (supplemental_left) {
1803                         supplemental_left->add_cell (_text_cells[LowerLeft1]);
1804                         supplemental_left->add_cell (_text_cells[LowerLeft2]);
1805                         supplemental_right->add_cell (_text_cells[LowerRight1]);
1806                         supplemental_right->add_cell (_text_cells[LowerRight2]);
1807
1808                         supplemental_left->set_width_chars (_text_cells[LowerLeft1], 1);
1809                         supplemental_left->set_width_chars (_text_cells[LowerLeft2], 5.25);
1810
1811                         supplemental_right->set_width_chars (_text_cells[LowerRight1], 1);
1812                         supplemental_right->set_width_chars (_text_cells[LowerRight2], 5);
1813
1814                         supplemental_left->set_text (_text_cells[LowerLeft1], _("M"));
1815                         supplemental_right->set_text (_text_cells[LowerRight1], _("T"));
1816                 }
1817                 break;
1818
1819         case MinSec:
1820                 display->add_cell (_text_cells[MS_Hours]);
1821                 display->add_cell (_fixed_cells[Colon1]);
1822                 display->add_cell (_text_cells[MS_Minutes]);
1823                 display->add_cell (_fixed_cells[Colon2]);
1824                 display->add_cell (_text_cells[MS_Seconds]);
1825                 display->add_cell (_fixed_cells[Colon3]);
1826                 display->add_cell (_text_cells[MS_Milliseconds]);
1827                 break;
1828
1829         case Frames:
1830                 display->add_cell (_text_cells[AudioFrames]);
1831                 if (supplemental_left) {
1832                         supplemental_left->add_cell (_text_cells[LowerLeft1]);
1833                         supplemental_left->add_cell (_text_cells[LowerLeft2]);
1834                         supplemental_right->add_cell (_text_cells[LowerRight1]);
1835                         supplemental_right->add_cell (_text_cells[LowerRight2]);
1836
1837                         supplemental_left->set_width_chars (_text_cells[LowerLeft1], 3);
1838                         supplemental_left->set_width_chars (_text_cells[LowerLeft2], 5);
1839
1840                         supplemental_right->set_width_chars (_text_cells[LowerRight1], 5);
1841                         supplemental_right->set_width_chars (_text_cells[LowerRight2], 5);
1842
1843                         supplemental_left->set_text (_text_cells[LowerLeft1], _("SR"));
1844                         supplemental_right->set_text (_text_cells[LowerRight1], _("Pull"));
1845                 }
1846                 break;
1847
1848         case Off:
1849                 break;
1850         }
1851
1852         if (supplemental_left) {
1853                 /* clear information cells */
1854                 supplemental_left->set_text (_text_cells[LowerLeft2], _(""));
1855                 supplemental_right->set_text (_text_cells[LowerRight2], _(""));
1856
1857                 /* propagate font style,but smaller, into cells */
1858                 boost::shared_ptr<CairoFontDescription> smaller_font (new CairoFontDescription (*display->font().get()));
1859                 smaller_font->set_size (12);
1860                 supplemental_right->set_font (smaller_font);
1861                 supplemental_left->set_font (smaller_font);
1862         }
1863
1864         if (_mode != Off) {
1865                 connect_signals ();
1866         } else {
1867                 disconnect_signals  ();
1868         }
1869
1870         set (last_when, true);
1871
1872         if (!is_transient) {
1873                 ModeChanged (); /* EMIT SIGNAL (the static one)*/
1874         }
1875
1876         mode_changed (); /* EMIT SIGNAL (the member one) */
1877 }
1878
1879 void
1880 AudioClock::set_bbt_reference (framepos_t pos)
1881 {
1882         bbt_reference_time = pos;
1883 }
1884
1885 void
1886 AudioClock::on_style_changed (const Glib::RefPtr<Gtk::Style>& old_style)
1887 {
1888         VBox::on_style_changed (old_style);
1889         set_theme ();
1890 }
1891
1892 void
1893 AudioClock::set_is_duration (bool yn)
1894 {
1895         if (yn == is_duration) {
1896                 return;
1897         }
1898
1899         is_duration = yn;
1900         set (last_when, true, 0, 's');
1901 }
1902