gtk2_ardour/editor_rulers.cc

   1 /*
   2     Copyright (C) 2000 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 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <cstdio> // for sprintf, grrr
  25 #include <cmath>
  26 #include <inttypes.h>
  27
  28 #include <string>
  29
  30 #include <gtk/gtkaction.h>
  31
  32 #include "ardour/session.h"
  33 #include "ardour/tempo.h"
  34 #include "ardour/profile.h"
  35
  36 #include "gtkmm2ext/gtk_ui.h"
  37
  38 #include "editor.h"
  39 #include "editing.h"
  40 #include "actions.h"
  41 #include "gtk-custom-hruler.h"
  42 #include "gui_thread.h"
  43 #include "time_axis_view.h"
  44 #include "editor_drag.h"
  45 #include "editor_cursors.h"
  46
  47 #include "i18n.h"
  48
  49 using namespace ARDOUR;
  50 using namespace PBD;
  51 using namespace Gtk;
  52 using namespace Editing;
  53
  54 Editor *Editor::ruler_editor;
  55
  56 /* the order here must match the "metric" enums in editor.h */
  57
  58 GtkCustomMetric Editor::ruler_metrics[4] = {
  59         {1, Editor::_metric_get_timecode },
  60         {1, Editor::_metric_get_bbt },
  61         {1, Editor::_metric_get_samples },
  62         {1, Editor::_metric_get_minsec }
  63 };
  64
  65 void
  66 Editor::initialize_rulers ()
  67 {
  68         ruler_editor = this;
  69         ruler_grabbed_widget = 0;
  70
  71         _ruler_separator = new Gtk::HSeparator();
  72         _ruler_separator->set_size_request(-1, 2);
  73         _ruler_separator->set_name("TimebarPadding");
  74         _ruler_separator->show();
  75
  76         _minsec_ruler = gtk_custom_hruler_new ();
  77         minsec_ruler = Glib::wrap (_minsec_ruler);
  78         minsec_ruler->set_name ("MinSecRuler");
  79         minsec_ruler->set_size_request (-1, (int)timebar_height);
  80         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
  81         minsec_ruler->hide ();
  82         minsec_ruler->set_no_show_all();
  83
  84         _timecode_ruler = gtk_custom_hruler_new ();
  85         timecode_ruler = Glib::wrap (_timecode_ruler);
  86         timecode_ruler->set_name ("TimecodeRuler");
  87         timecode_ruler->set_size_request (-1, (int)timebar_height);
  88         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_timecode_ruler), &ruler_metrics[ruler_metric_timecode]);
  89         timecode_ruler->hide ();
  90         timecode_ruler->set_no_show_all();
  91         timecode_nmarks = 0;
  92
  93         _bbt_ruler = gtk_custom_hruler_new ();
  94         bbt_ruler = Glib::wrap (_bbt_ruler);
  95         bbt_ruler->set_name ("BBTRuler");
  96         bbt_ruler->set_size_request (-1, (int)timebar_height);
  97         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
  98         bbt_ruler->hide ();
  99         bbt_ruler->set_no_show_all();
 100         bbt_nmarks = 0;
 101
 102         _samples_ruler = gtk_custom_hruler_new ();
 103         samples_ruler = Glib::wrap (_samples_ruler);
 104         samples_ruler->set_name ("SamplesRuler");
 105         samples_ruler->set_size_request (-1, (int) timebar_height);
 106         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER (_samples_ruler), &ruler_metrics[ruler_metric_samples]);
 107         samples_ruler->hide ();
 108         samples_ruler->set_no_show_all ();
 109
 110         _bbt_ruler = gtk_custom_hruler_new ();
 111         bbt_ruler = Glib::wrap (_bbt_ruler);
 112         bbt_ruler->set_name ("BBTRuler");
 113         bbt_ruler->set_size_request (-1, (int)timebar_height);
 114         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 115         bbt_ruler->hide ();
 116         bbt_ruler->set_no_show_all();
 117         minsec_ruler->hide ();
 118         minsec_ruler->set_no_show_all();
 119         minsec_nmarks = 0;
 120
 121         using namespace Box_Helpers;
 122         BoxList & ruler_lab_children =  ruler_label_vbox.children();
 123         BoxList & ruler_children =  time_canvas_vbox.children();
 124         BoxList & lab_children =  time_button_vbox.children();
 125
 126         BoxList::iterator canvaspos = ruler_children.begin();
 127
 128         lab_children.push_back (Element(meter_label, PACK_SHRINK, PACK_START));
 129         lab_children.push_back (Element(tempo_label, PACK_SHRINK, PACK_START));
 130         lab_children.push_back (Element(range_mark_label, PACK_SHRINK, PACK_START));
 131         lab_children.push_back (Element(transport_mark_label, PACK_SHRINK, PACK_START));
 132         lab_children.push_back (Element(cd_mark_label, PACK_SHRINK, PACK_START));
 133         lab_children.push_back (Element(mark_label, PACK_SHRINK, PACK_START));
 134
 135         ruler_lab_children.push_back (Element(minsec_label, PACK_SHRINK, PACK_START));
 136         ruler_children.insert (canvaspos, Element(*minsec_ruler, PACK_SHRINK, PACK_START));
 137         ruler_lab_children.push_back (Element(timecode_label, PACK_SHRINK, PACK_START));
 138         ruler_children.insert (canvaspos, Element(*timecode_ruler, PACK_SHRINK, PACK_START));
 139         ruler_lab_children.push_back (Element(samples_label, PACK_SHRINK, PACK_START));
 140         ruler_children.insert (canvaspos, Element (*samples_ruler, PACK_SHRINK, PACK_START));
 141         ruler_lab_children.push_back (Element(bbt_label, PACK_SHRINK, PACK_START));
 142         ruler_children.insert (canvaspos, Element(*bbt_ruler, PACK_SHRINK, PACK_START));
 143
 144         timecode_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 145         bbt_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 146         samples_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 147         minsec_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 148
 149         timecode_ruler->signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_release));
 150         bbt_ruler->signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_release));
 151         samples_ruler->signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_release));
 152         minsec_ruler->signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_release));
 153
 154         timecode_ruler->signal_button_press_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_press));
 155         bbt_ruler->signal_button_press_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_press));
 156         samples_ruler->signal_button_press_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_press));
 157         minsec_ruler->signal_button_press_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_press));
 158
 159         timecode_ruler->signal_motion_notify_event().connect (sigc::mem_fun(*this, &Editor::ruler_mouse_motion));
 160         bbt_ruler->signal_motion_notify_event().connect (sigc::mem_fun(*this, &Editor::ruler_mouse_motion));
 161         samples_ruler->signal_motion_notify_event().connect (sigc::mem_fun(*this, &Editor::ruler_mouse_motion));
 162         minsec_ruler->signal_motion_notify_event().connect (sigc::mem_fun(*this, &Editor::ruler_mouse_motion));
 163
 164         timecode_ruler->signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::ruler_scroll));
 165         bbt_ruler->signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::ruler_scroll));
 166         samples_ruler->signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::ruler_scroll));
 167         minsec_ruler->signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::ruler_scroll));
 168
 169         visible_timebars = 0; /*this will be changed below */
 170         canvas_timebars_vsize = 0;
 171 }
 172
 173 bool
 174 Editor::ruler_scroll (GdkEventScroll* event)
 175 {
 176         framepos_t xdelta;
 177         int direction = event->direction;
 178         bool handled = false;
 179
 180         switch (direction) {
 181         case GDK_SCROLL_UP:
 182                 temporal_zoom_step (false);
 183                 handled = true;
 184                 break;
 185
 186         case GDK_SCROLL_DOWN:
 187                 temporal_zoom_step (true);
 188                 handled = true;
 189                 break;
 190
 191         case GDK_SCROLL_LEFT:
 192                 xdelta = (current_page_frames() / 2);
 193                 if (leftmost_frame > xdelta) {
 194                         reset_x_origin (leftmost_frame - xdelta);
 195                 } else {
 196                         reset_x_origin (0);
 197                 }
 198                 handled = true;
 199                 break;
 200
 201         case GDK_SCROLL_RIGHT:
 202                 xdelta = (current_page_frames() / 2);
 203                 if (max_framepos - xdelta > leftmost_frame) {
 204                         reset_x_origin (leftmost_frame + xdelta);
 205                 } else {
 206                         reset_x_origin (max_framepos - current_page_frames());
 207                 }
 208                 handled = true;
 209                 break;
 210
 211         default:
 212                 /* what? */
 213                 break;
 214         }
 215
 216         return handled;
 217 }
 218
 219
 220 bool
 221 Editor::ruler_button_press (GdkEventButton* ev)
 222 {
 223         if (_session == 0) {
 224                 return false;
 225         }
 226
 227         Widget * grab_widget = 0;
 228
 229         if (timecode_ruler->is_realized() && ev->window == timecode_ruler->get_window()->gobj()) {
 230                 grab_widget = timecode_ruler;
 231         } else if (bbt_ruler->is_realized() && ev->window == bbt_ruler->get_window()->gobj()) {
 232                 grab_widget = bbt_ruler;
 233         } else if (samples_ruler->is_realized() && ev->window == samples_ruler->get_window()->gobj()) {
 234                 grab_widget = samples_ruler;
 235         } else if (minsec_ruler->is_realized() && ev->window == minsec_ruler->get_window()->gobj()) {
 236                 grab_widget = minsec_ruler;
 237         }
 238
 239         if (grab_widget) {
 240                 grab_widget->add_modal_grab ();
 241                 ruler_grabbed_widget = grab_widget;
 242         }
 243
 244         if (ev->button == 1) {
 245                 // Since we will locate the playhead on button release, cancel any running
 246                 // auditions.
 247                 if (_session->is_auditioning()) {
 248                         _session->cancel_audition ();
 249                 }
 250
 251                 /* playhead cursor */
 252                 _drags->set (new CursorDrag (this, &playhead_cursor->canvas_item, false), reinterpret_cast<GdkEvent *> (ev));
 253                 _dragging_playhead = true;
 254         }
 255
 256         return true;
 257 }
 258
 259 bool
 260 Editor::ruler_button_release (GdkEventButton* ev)
 261 {
 262         if (_session == 0) {
 263                 return false;
 264         }
 265
 266         gint x,y;
 267         Gdk::ModifierType state;
 268
 269         if (_drags->active ()) {
 270                 _drags->end_grab (reinterpret_cast<GdkEvent*> (ev));
 271                 _dragging_playhead = false;
 272         }
 273
 274         if (ev->button == 3) {
 275                 /* need to use the correct x,y, the event lies */
 276                 time_canvas_event_box.get_window()->get_pointer (x, y, state);
 277
 278                 stop_canvas_autoscroll();
 279
 280                 framepos_t where = leftmost_frame + pixel_to_frame (x);
 281                 snap_to (where);
 282                 popup_ruler_menu (where);
 283         }
 284
 285         if (ruler_grabbed_widget) {
 286                 ruler_grabbed_widget->remove_modal_grab();
 287                 ruler_grabbed_widget = 0;
 288         }
 289
 290         return true;
 291 }
 292
 293 bool
 294 Editor::ruler_label_button_release (GdkEventButton* ev)
 295 {
 296         if (ev->button == 3) {
 297                 Gtk::Menu* m = dynamic_cast<Gtk::Menu*> (ActionManager::get_widget (X_("/RulerMenuPopup")));
 298                 if (m) {
 299                         m->popup (1, ev->time);
 300                 }
 301         }
 302
 303         return true;
 304 }
 305
 306
 307 bool
 308 Editor::ruler_mouse_motion (GdkEventMotion* ev)
 309 {
 310         if (_session == 0) {
 311                 return false;
 312         }
 313
 314         if (_drags->active ()) {
 315                 _drags->motion_handler (reinterpret_cast<GdkEvent*> (ev), false);
 316         }
 317
 318         return true;
 319 }
 320
 321
 322 void
 323 Editor::popup_ruler_menu (framepos_t where, ItemType t)
 324 {
 325         using namespace Menu_Helpers;
 326
 327         if (editor_ruler_menu == 0) {
 328                 editor_ruler_menu = new Menu;
 329                 editor_ruler_menu->set_name ("ArdourContextMenu");
 330         }
 331
 332         // always build from scratch
 333         MenuList& ruler_items = editor_ruler_menu->items();
 334         editor_ruler_menu->set_name ("ArdourContextMenu");
 335         ruler_items.clear();
 336
 337         switch (t) {
 338         case MarkerBarItem:
 339                 ruler_items.push_back (MenuElem (_("New location marker"), sigc::bind ( sigc::mem_fun(*this, &Editor::mouse_add_new_marker), where, false, false)));
 340                 ruler_items.push_back (MenuElem (_("Clear all locations"), sigc::mem_fun(*this, &Editor::clear_markers)));
 341                 ruler_items.push_back (MenuElem (_("Unhide locations"), sigc::mem_fun(*this, &Editor::unhide_markers)));
 342                 ruler_items.push_back (SeparatorElem ());
 343                 break;
 344         case RangeMarkerBarItem:
 345                 //ruler_items.push_back (MenuElem (_("New Range")));
 346                 ruler_items.push_back (MenuElem (_("Clear all ranges"), sigc::mem_fun(*this, &Editor::clear_ranges)));
 347                 ruler_items.push_back (MenuElem (_("Unhide ranges"), sigc::mem_fun(*this, &Editor::unhide_ranges)));
 348                 ruler_items.push_back (SeparatorElem ());
 349
 350                 break;
 351         case TransportMarkerBarItem:
 352
 353                 break;
 354
 355         case CdMarkerBarItem:
 356                 // TODO
 357                 ruler_items.push_back (MenuElem (_("New CD track marker"), sigc::bind ( sigc::mem_fun(*this, &Editor::mouse_add_new_marker), where, true, false)));
 358                 break;
 359
 360
 361         case TempoBarItem:
 362                 ruler_items.push_back (MenuElem (_("New Tempo"), sigc::bind ( sigc::mem_fun(*this, &Editor::mouse_add_new_tempo_event), where)));
 363                 ruler_items.push_back (SeparatorElem ());
 364                 break;
 365
 366         case MeterBarItem:
 367                 ruler_items.push_back (MenuElem (_("New Meter"), sigc::bind ( sigc::mem_fun(*this, &Editor::mouse_add_new_meter_event), where)));
 368                 ruler_items.push_back (SeparatorElem ());
 369                 break;
 370
 371         default:
 372                 break;
 373         }
 374
 375         Glib::RefPtr<Action> action;
 376
 377         action = ActionManager::get_action ("Rulers", "toggle-minsec-ruler");
 378         if (action) {
 379                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 380         }
 381         if (!Profile->get_sae()) {
 382                 action = ActionManager::get_action ("Rulers", "toggle-timecode-ruler");
 383                 if (action) {
 384                         ruler_items.push_back (MenuElem (*action->create_menu_item()));
 385                 }
 386         }
 387         action = ActionManager::get_action ("Rulers", "toggle-samples-ruler");
 388         if (action) {
 389                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 390         }
 391         action = ActionManager::get_action ("Rulers", "toggle-bbt-ruler");
 392         if (action) {
 393                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 394         }
 395         action = ActionManager::get_action ("Rulers", "toggle-meter-ruler");
 396         if (action) {
 397                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 398         }
 399         action = ActionManager::get_action ("Rulers", "toggle-tempo-ruler");
 400         if (action) {
 401                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 402         }
 403         if (!Profile->get_sae()) {
 404                 action = ActionManager::get_action ("Rulers", "toggle-range-ruler");
 405                 if (action) {
 406                         ruler_items.push_back (MenuElem (*action->create_menu_item()));
 407                 }
 408         }
 409         action = ActionManager::get_action ("Rulers", "toggle-loop-punch-ruler");
 410         if (action) {
 411                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 412         }
 413         action = ActionManager::get_action ("Rulers", "toggle-cd-marker-ruler");
 414         if (action) {
 415                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 416         }
 417         action = ActionManager::get_action ("Rulers", "toggle-marker-ruler");
 418         if (action) {
 419                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 420         }
 421
 422         editor_ruler_menu->popup (1, gtk_get_current_event_time());
 423
 424         no_ruler_shown_update = false;
 425 }
 426
 427 void
 428 Editor::store_ruler_visibility ()
 429 {
 430         XMLNode* node = new XMLNode(X_("RulerVisibility"));
 431
 432         node->add_property (X_("timecode"), ruler_timecode_action->get_active() ? "yes": "no");
 433         node->add_property (X_("bbt"), ruler_bbt_action->get_active() ? "yes": "no");
 434         node->add_property (X_("samples"), ruler_samples_action->get_active() ? "yes": "no");
 435         node->add_property (X_("minsec"), ruler_minsec_action->get_active() ? "yes": "no");
 436         node->add_property (X_("tempo"), ruler_tempo_action->get_active() ? "yes": "no");
 437         node->add_property (X_("meter"), ruler_meter_action->get_active() ? "yes": "no");
 438         node->add_property (X_("marker"), ruler_marker_action->get_active() ? "yes": "no");
 439         node->add_property (X_("rangemarker"), ruler_range_action->get_active() ? "yes": "no");
 440         node->add_property (X_("transportmarker"), ruler_loop_punch_action->get_active() ? "yes": "no");
 441         node->add_property (X_("cdmarker"), ruler_cd_marker_action->get_active() ? "yes": "no");
 442
 443         _session->add_extra_xml (*node);
 444         _session->set_dirty ();
 445 }
 446
 447 void
 448 Editor::restore_ruler_visibility ()
 449 {
 450         XMLProperty* prop;
 451         XMLNode * node = _session->extra_xml (X_("RulerVisibility"));
 452
 453         no_ruler_shown_update = true;
 454
 455         if (node) {
 456                 if ((prop = node->property ("timecode")) != 0) {
 457                         if (string_is_affirmative (prop->value())) {
 458                                 ruler_timecode_action->set_active (true);
 459                         } else {
 460                                 ruler_timecode_action->set_active (false);
 461                         }
 462                 }
 463                 if ((prop = node->property ("bbt")) != 0) {
 464                         if (string_is_affirmative (prop->value())) {
 465                                 ruler_bbt_action->set_active (true);
 466                         } else {
 467                                 ruler_bbt_action->set_active (false);
 468                         }
 469                 }
 470                 if ((prop = node->property ("samples")) != 0) {
 471                         if (string_is_affirmative (prop->value())) {
 472                                 ruler_samples_action->set_active (true);
 473                         } else {
 474                                 ruler_samples_action->set_active (false);
 475                         }
 476                 }
 477                 if ((prop = node->property ("minsec")) != 0) {
 478                         if (string_is_affirmative (prop->value())) {
 479                                 ruler_minsec_action->set_active (true);
 480                         } else {
 481                                 ruler_minsec_action->set_active (false);
 482                         }
 483                 }
 484                 if ((prop = node->property ("tempo")) != 0) {
 485                         if (string_is_affirmative (prop->value())) {
 486                                 ruler_tempo_action->set_active (true);
 487                         } else {
 488                                 ruler_tempo_action->set_active (false);
 489                         }
 490                 }
 491                 if ((prop = node->property ("meter")) != 0) {
 492                         if (string_is_affirmative (prop->value())) {
 493                                 ruler_meter_action->set_active (true);
 494                         } else {
 495                                 ruler_meter_action->set_active (false);
 496                         }
 497                 }
 498                 if ((prop = node->property ("marker")) != 0) {
 499                         if (string_is_affirmative (prop->value())) {
 500                                 ruler_marker_action->set_active (true);
 501                         } else {
 502                                 ruler_marker_action->set_active (false);
 503                         }
 504                 }
 505                 if ((prop = node->property ("rangemarker")) != 0) {
 506                         if (string_is_affirmative (prop->value())) {
 507                                 ruler_range_action->set_active (true);
 508                         } else {
 509                                 ruler_range_action->set_active (false);
 510                         }
 511                 }
 512
 513                 if ((prop = node->property ("transportmarker")) != 0) {
 514                         if (string_is_affirmative (prop->value())) {
 515                                 ruler_loop_punch_action->set_active (true);
 516                         } else {
 517                                 ruler_loop_punch_action->set_active (false);
 518                         }
 519                 }
 520
 521                 if ((prop = node->property ("cdmarker")) != 0) {
 522                         if (string_is_affirmative (prop->value())) {
 523                                 ruler_cd_marker_action->set_active (true);
 524                         } else {
 525                                 ruler_cd_marker_action->set_active (false);
 526                         }
 527
 528                 } else {
 529                         // this _session doesn't yet know about the cdmarker ruler
 530                         // as a benefit to the user who doesn't know the feature exists, show the ruler if
 531                         // any cd marks exist
 532                         ruler_cd_marker_action->set_active (false);
 533                         const Locations::LocationList & locs = _session->locations()->list();
 534                         for (Locations::LocationList::const_iterator i = locs.begin(); i != locs.end(); ++i) {
 535                                 if ((*i)->is_cd_marker()) {
 536                                         ruler_cd_marker_action->set_active (true);
 537                                         break;
 538                                 }
 539                         }
 540                 }
 541
 542         }
 543
 544         no_ruler_shown_update = false;
 545         update_ruler_visibility ();
 546 }
 547
 548 void
 549 Editor::update_ruler_visibility ()
 550 {
 551         int visible_rulers = 0;
 552
 553         if (no_ruler_shown_update) {
 554                 return;
 555         }
 556
 557         visible_timebars = 0;
 558
 559         if (ruler_minsec_action->get_active()) {
 560                 visible_rulers++;
 561                 minsec_label.show ();
 562                 minsec_ruler->show ();
 563         } else {
 564                 minsec_label.hide ();
 565                 minsec_ruler->hide ();
 566         }
 567
 568         if (ruler_timecode_action->get_active()) {
 569                 visible_rulers++;
 570                 timecode_label.show ();
 571                 timecode_ruler->show ();
 572         } else {
 573                 timecode_label.hide ();
 574                 timecode_ruler->hide ();
 575         }
 576
 577         if (ruler_samples_action->get_active()) {
 578                 visible_rulers++;
 579                 samples_label.show ();
 580                 samples_ruler->show ();
 581         } else {
 582                 samples_label.hide ();
 583                 samples_ruler->hide ();
 584         }
 585
 586         if (ruler_bbt_action->get_active()) {
 587                 visible_rulers++;
 588                 bbt_label.show ();
 589                 bbt_ruler->show ();
 590         } else {
 591                 bbt_label.hide ();
 592                 bbt_ruler->hide ();
 593         }
 594
 595         double tbpos = 0.0;
 596         double tbgpos = 0.0;
 597         double old_unit_pos;
 598
 599 #ifdef GTKOSX
 600         /* gtk update probs require this (damn) */
 601         meter_label.hide();
 602         tempo_label.hide();
 603         range_mark_label.hide();
 604         transport_mark_label.hide();
 605         cd_mark_label.hide();
 606         mark_label.hide();
 607 #endif
 608         if (ruler_meter_action->get_active()) {
 609                 old_unit_pos = meter_group->property_y();
 610                 if (tbpos != old_unit_pos) {
 611                         meter_group->move ( 0.0, tbpos - old_unit_pos);
 612                 }
 613                 old_unit_pos = meter_bar_group->property_y();
 614                 if (tbgpos != old_unit_pos) {
 615                         meter_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 616                 }
 617                 meter_bar_group->show();
 618                 meter_group->show();
 619                 meter_label.show();
 620                 tbpos += timebar_height;
 621                 tbgpos += timebar_height;
 622                 visible_timebars++;
 623         } else {
 624                 meter_bar_group->hide();
 625                 meter_group->hide();
 626                 meter_label.hide();
 627         }
 628
 629         if (ruler_tempo_action->get_active()) {
 630                 old_unit_pos = tempo_group->property_y();
 631                 if (tbpos != old_unit_pos) {
 632                         tempo_group->move(0.0, tbpos - old_unit_pos);
 633                 }
 634                 old_unit_pos = tempo_bar_group->property_y();
 635                 if (tbgpos != old_unit_pos) {
 636                         tempo_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 637                 }
 638                 tempo_bar_group->show();
 639                 tempo_group->show();
 640                 tempo_label.show();
 641                 tbpos += timebar_height;
 642                 tbgpos += timebar_height;
 643                 visible_timebars++;
 644         } else {
 645                 tempo_bar_group->hide();
 646                 tempo_group->hide();
 647                 tempo_label.hide();
 648         }
 649
 650         if (!Profile->get_sae() && ruler_range_action->get_active()) {
 651                 old_unit_pos = range_marker_group->property_y();
 652                 if (tbpos != old_unit_pos) {
 653                         range_marker_group->move (0.0, tbpos - old_unit_pos);
 654                 }
 655                 old_unit_pos = range_marker_bar_group->property_y();
 656                 if (tbgpos != old_unit_pos) {
 657                         range_marker_bar_group->move (0.0, tbgpos - old_unit_pos);
 658                 }
 659                 range_marker_bar_group->show();
 660                 range_marker_group->show();
 661                 range_mark_label.show();
 662
 663                 tbpos += timebar_height;
 664                 tbgpos += timebar_height;
 665                 visible_timebars++;
 666         } else {
 667                 range_marker_bar_group->hide();
 668                 range_marker_group->hide();
 669                 range_mark_label.hide();
 670         }
 671
 672         if (ruler_loop_punch_action->get_active()) {
 673                 old_unit_pos = transport_marker_group->property_y();
 674                 if (tbpos != old_unit_pos) {
 675                         transport_marker_group->move ( 0.0, tbpos - old_unit_pos);
 676                 }
 677                 old_unit_pos = transport_marker_bar_group->property_y();
 678                 if (tbgpos != old_unit_pos) {
 679                         transport_marker_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 680                 }
 681                 transport_marker_bar_group->show();
 682                 transport_marker_group->show();
 683                 transport_mark_label.show();
 684                 tbpos += timebar_height;
 685                 tbgpos += timebar_height;
 686                 visible_timebars++;
 687         } else {
 688                 transport_marker_bar_group->hide();
 689                 transport_marker_group->hide();
 690                 transport_mark_label.hide();
 691         }
 692
 693         if (ruler_cd_marker_action->get_active()) {
 694                 old_unit_pos = cd_marker_group->property_y();
 695                 if (tbpos != old_unit_pos) {
 696                         cd_marker_group->move (0.0, tbpos - old_unit_pos);
 697                 }
 698                 old_unit_pos = cd_marker_bar_group->property_y();
 699                 if (tbgpos != old_unit_pos) {
 700                         cd_marker_bar_group->move (0.0, tbgpos - old_unit_pos);
 701                 }
 702                 cd_marker_bar_group->show();
 703                 cd_marker_group->show();
 704                 cd_mark_label.show();
 705                 tbpos += timebar_height;
 706                 tbgpos += timebar_height;
 707                 visible_timebars++;
 708                 // make sure all cd markers show up in their respective places
 709                 update_cd_marker_display();
 710         } else {
 711                 cd_marker_bar_group->hide();
 712                 cd_marker_group->hide();
 713                 cd_mark_label.hide();
 714                 // make sure all cd markers show up in their respective places
 715                 update_cd_marker_display();
 716         }
 717
 718         if (ruler_marker_action->get_active()) {
 719                 old_unit_pos = marker_group->property_y();
 720                 if (tbpos != old_unit_pos) {
 721                         marker_group->move ( 0.0, tbpos - old_unit_pos);
 722                 }
 723                 old_unit_pos = marker_bar_group->property_y();
 724                 if (tbgpos != old_unit_pos) {
 725                         marker_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 726                 }
 727                 marker_bar_group->show();
 728                 marker_group->show();
 729                 mark_label.show();
 730                 tbpos += timebar_height;
 731                 tbgpos += timebar_height;
 732                 visible_timebars++;
 733         } else {
 734                 marker_bar_group->hide();
 735                 marker_group->hide();
 736                 mark_label.hide();
 737         }
 738
 739         gdouble old_canvas_timebars_vsize = canvas_timebars_vsize;
 740         canvas_timebars_vsize = (timebar_height * visible_timebars) - 1;
 741         gdouble vertical_pos_delta = canvas_timebars_vsize - old_canvas_timebars_vsize;
 742         vertical_adjustment.set_upper(vertical_adjustment.get_upper() + vertical_pos_delta);
 743         full_canvas_height += vertical_pos_delta;
 744
 745         if (vertical_adjustment.get_value() != 0 && (vertical_adjustment.get_value() + _canvas_height >= full_canvas_height)) {
 746                 /*if we're at the bottom of the canvas, don't move the _trackview_group*/
 747                 vertical_adjustment.set_value (full_canvas_height - _canvas_height + 1);
 748         } else {
 749                 _trackview_group->property_y () = - get_trackview_group_vertical_offset ();
 750                 _background_group->property_y () = - get_trackview_group_vertical_offset ();
 751                 _trackview_group->move (0, 0);
 752                 _background_group->move (0, 0);
 753                 last_trackview_group_vertical_offset = get_trackview_group_vertical_offset ();
 754         }
 755
 756         gdouble bottom_track_pos = vertical_adjustment.get_value() + _canvas_height - canvas_timebars_vsize;
 757         std::pair<TimeAxisView*, int> const p = trackview_by_y_position (bottom_track_pos);
 758         if (p.first) {
 759                 p.first->clip_to_viewport ();
 760         }
 761
 762         ruler_label_vbox.set_size_request (-1, (int)(timebar_height * visible_rulers));
 763         time_canvas_vbox.set_size_request (-1,-1);
 764
 765         compute_fixed_ruler_scale ();
 766         update_fixed_rulers();
 767         redisplay_tempo (false);
 768
 769         /* Changing ruler visibility means that any lines on markers might need updating */
 770         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
 771                 i->second->setup_lines ();
 772         }
 773 }
 774
 775 void
 776 Editor::update_just_timecode ()
 777 {
 778         ENSURE_GUI_THREAD (*this, &Editor::update_just_timecode)
 779
 780         if (_session == 0) {
 781                 return;
 782         }
 783
 784         framepos_t rightmost_frame = leftmost_frame + current_page_frames();
 785
 786         if (ruler_timecode_action->get_active()) {
 787                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_timecode_ruler), leftmost_frame, rightmost_frame,
 788                                             leftmost_frame, _session->current_end_frame());
 789         }
 790 }
 791
 792 void
 793 Editor::compute_fixed_ruler_scale ()
 794 {
 795         if (_session == 0) {
 796                 return;
 797         }
 798
 799         if (ruler_timecode_action->get_active()) {
 800                 set_timecode_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames());
 801         }
 802
 803         if (ruler_minsec_action->get_active()) {
 804                 set_minsec_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames());
 805         }
 806
 807         if (ruler_samples_action->get_active()) {
 808                 set_samples_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames());
 809         }
 810 }
 811
 812 void
 813 Editor::update_fixed_rulers ()
 814 {
 815         framepos_t rightmost_frame;
 816
 817         if (_session == 0) {
 818                 return;
 819         }
 820
 821         ruler_metrics[ruler_metric_timecode].units_per_pixel = frames_per_unit;
 822         ruler_metrics[ruler_metric_samples].units_per_pixel = frames_per_unit;
 823         ruler_metrics[ruler_metric_minsec].units_per_pixel = frames_per_unit;
 824
 825         rightmost_frame = leftmost_frame + current_page_frames();
 826
 827         /* these force a redraw, which in turn will force execution of the metric callbacks
 828            to compute the relevant ticks to display.
 829         */
 830
 831         if (ruler_timecode_action->get_active()) {
 832                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_timecode_ruler), leftmost_frame, rightmost_frame,
 833                                             leftmost_frame, _session->current_end_frame());
 834         }
 835
 836         if (ruler_samples_action->get_active()) {
 837                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER (_samples_ruler), leftmost_frame, rightmost_frame,
 838                                             leftmost_frame, _session->current_end_frame());
 839         }
 840
 841         if (ruler_minsec_action->get_active()) {
 842                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_minsec_ruler), leftmost_frame, rightmost_frame,
 843                                             leftmost_frame, _session->current_end_frame());
 844         }
 845 }
 846
 847 void
 848 Editor::update_tempo_based_rulers ()
 849 {
 850         if (_session == 0) {
 851                 return;
 852         }
 853
 854         ruler_metrics[ruler_metric_bbt].units_per_pixel = frames_per_unit;
 855
 856         if (ruler_bbt_action->get_active()) {
 857                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_bbt_ruler), leftmost_frame, leftmost_frame+current_page_frames(),
 858                                             leftmost_frame, _session->current_end_frame());
 859         }
 860 }
 861
 862 /* Mark generation */
 863
 864 gint
 865 Editor::_metric_get_timecode (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 866 {
 867         return ruler_editor->metric_get_timecode (marks, lower, upper, maxchars);
 868 }
 869
 870 gint
 871 Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 872 {
 873         return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 874 }
 875
 876 gint
 877 Editor::_metric_get_samples (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 878 {
 879         return ruler_editor->metric_get_samples (marks, lower, upper, maxchars);
 880 }
 881
 882 gint
 883 Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 884 {
 885         return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 886 }
 887
 888 void
 889 Editor::set_timecode_ruler_scale (framepos_t lower, framepos_t upper)
 890 {
 891         framepos_t spacer;
 892         framepos_t fr;
 893
 894         if (_session == 0) {
 895                 return;
 896         }
 897
 898         fr = _session->frame_rate();
 899
 900         if (lower > (spacer = (framepos_t) (128 * Editor::get_current_zoom ()))) {
 901                 lower = lower - spacer;
 902         } else {
 903                 lower = 0;
 904         }
 905         upper = upper + spacer;
 906         framecnt_t const range = upper - lower;
 907
 908         if (range < (2 * _session->frames_per_timecode_frame())) { /* 0 - 2 frames */
 909                 timecode_ruler_scale = timecode_show_bits;
 910                 timecode_mark_modulo = 20;
 911                 timecode_nmarks = 2 + (2 * _session->config.get_subframes_per_frame());
 912         } else if (range <= (fr / 4)) { /* 2 frames - 0.250 second */
 913                 timecode_ruler_scale = timecode_show_frames;
 914                 timecode_mark_modulo = 1;
 915                 timecode_nmarks = 2 + (range / (framepos_t)_session->frames_per_timecode_frame());
 916         } else if (range <= (fr / 2)) { /* 0.25-0.5 second */
 917                 timecode_ruler_scale = timecode_show_frames;
 918                 timecode_mark_modulo = 2;
 919                 timecode_nmarks = 2 + (range / (framepos_t)_session->frames_per_timecode_frame());
 920         } else if (range <= fr) { /* 0.5-1 second */
 921                 timecode_ruler_scale = timecode_show_frames;
 922                 timecode_mark_modulo = 5;
 923                 timecode_nmarks = 2 + (range / (framepos_t)_session->frames_per_timecode_frame());
 924         } else if (range <= 2 * fr) { /* 1-2 seconds */
 925                 timecode_ruler_scale = timecode_show_frames;
 926                 timecode_mark_modulo = 10;
 927                 timecode_nmarks = 2 + (range / (framepos_t)_session->frames_per_timecode_frame());
 928         } else if (range <= 8 * fr) { /* 2-8 seconds */
 929                 timecode_ruler_scale = timecode_show_seconds;
 930                 timecode_mark_modulo = 1;
 931                 timecode_nmarks = 2 + (range / fr);
 932         } else if (range <= 16 * fr) { /* 8-16 seconds */
 933                 timecode_ruler_scale = timecode_show_seconds;
 934                 timecode_mark_modulo = 2;
 935                 timecode_nmarks = 2 + (range / fr);
 936         } else if (range <= 30 * fr) { /* 16-30 seconds */
 937                 timecode_ruler_scale = timecode_show_seconds;
 938                 timecode_mark_modulo = 5;
 939                 timecode_nmarks = 2 + (range / fr);
 940         } else if (range <= 60 * fr) { /* 30-60 seconds */
 941                 timecode_ruler_scale = timecode_show_seconds;
 942                 timecode_mark_modulo = 5;
 943                 timecode_nmarks = 2 + (range / fr);
 944         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
 945                 timecode_ruler_scale = timecode_show_seconds;
 946                 timecode_mark_modulo = 15;
 947                 timecode_nmarks = 2 + (range / fr);
 948         } else if (range <= 4 * 60 * fr) { /* 2-4 minutes */
 949                 timecode_ruler_scale = timecode_show_seconds;
 950                 timecode_mark_modulo = 30;
 951                 timecode_nmarks = 2 + (range / fr);
 952         } else if (range <= 10 * 60 * fr) { /* 4-10 minutes */
 953                 timecode_ruler_scale = timecode_show_minutes;
 954                 timecode_mark_modulo = 2;
 955                 timecode_nmarks = 2 + 10;
 956         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
 957                 timecode_ruler_scale = timecode_show_minutes;
 958                 timecode_mark_modulo = 5;
 959                 timecode_nmarks = 2 + 30;
 960         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
 961                 timecode_ruler_scale = timecode_show_minutes;
 962                 timecode_mark_modulo = 10;
 963                 timecode_nmarks = 2 + 60;
 964         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
 965                 timecode_ruler_scale = timecode_show_minutes;
 966                 timecode_mark_modulo = 30;
 967                 timecode_nmarks = 2 + (60 * 4);
 968         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
 969                 timecode_ruler_scale = timecode_show_hours;
 970                 timecode_mark_modulo = 1;
 971                 timecode_nmarks = 2 + 8;
 972         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
 973                 timecode_ruler_scale = timecode_show_hours;
 974                 timecode_mark_modulo = 1;
 975                 timecode_nmarks = 2 + 24;
 976         } else {
 977
 978                 /* not possible if framepos_t is a 32 bit quantity */
 979
 980                 timecode_ruler_scale = timecode_show_hours;
 981                 timecode_mark_modulo = 4;
 982                 timecode_nmarks = 2 + 24;
 983         }
 984
 985 }
 986
 987 gint
 988 Editor::metric_get_timecode (GtkCustomRulerMark **marks, gdouble lower, gdouble /*upper*/, gint /*maxchars*/)
 989 {
 990         framepos_t pos;
 991         framecnt_t spacer;
 992         Timecode::Time timecode;
 993         gchar buf[16];
 994         gint n;
 995
 996         if (_session == 0) {
 997                 return 0;
 998         }
 999
1000         if (lower > (spacer = (framecnt_t)(128 * Editor::get_current_zoom ()))) {
1001                 lower = lower - spacer;
1002         } else {
1003                 lower = 0;
1004         }
1005
1006         pos = (framecnt_t) floor (lower);
1007
1008         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * timecode_nmarks);
1009         switch (timecode_ruler_scale) {
1010         case timecode_show_bits:
1011
1012                 // Find timecode time of this sample (pos) with subframe accuracy
1013                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, true /* use_subframes */ );
1014
1015                 for (n = 0; n < timecode_nmarks; n++) {
1016                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, true /* use_subframes */ );
1017                         if ((timecode.subframes % timecode_mark_modulo) == 0) {
1018                                 if (timecode.subframes == 0) {
1019                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1020                                         snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1021                                 } else {
1022                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1023                                         snprintf (buf, sizeof(buf), ".%02u", timecode.subframes);
1024                                 }
1025                         } else {
1026                                 snprintf (buf, sizeof(buf)," ");
1027                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1028
1029                         }
1030                         (*marks)[n].label = g_strdup (buf);
1031                         (*marks)[n].position = pos;
1032
1033                         // Increment subframes by one
1034                         Timecode::increment_subframes( timecode, _session->config.get_subframes_per_frame() );
1035                 }
1036           break;
1037         case timecode_show_seconds:
1038                 // Find timecode time of this sample (pos)
1039                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, false /* use_subframes */ );
1040                 // Go to next whole second down
1041                 Timecode::seconds_floor( timecode );
1042
1043                 for (n = 0; n < timecode_nmarks; n++) {
1044                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, false /* use_subframes */ );
1045                         if ((timecode.seconds % timecode_mark_modulo) == 0) {
1046                                 if (timecode.seconds == 0) {
1047                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1048                                         (*marks)[n].position = pos;
1049                                 } else {
1050                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1051                                         (*marks)[n].position = pos;
1052                                 }
1053                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1054                         } else {
1055                                 snprintf (buf, sizeof(buf)," ");
1056                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1057                                 (*marks)[n].position = pos;
1058
1059                         }
1060                         (*marks)[n].label = g_strdup (buf);
1061                         Timecode::increment_seconds( timecode, _session->config.get_subframes_per_frame() );
1062                 }
1063           break;
1064         case timecode_show_minutes:
1065                 // Find timecode time of this sample (pos)
1066                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, false /* use_subframes */ );
1067                 // Go to next whole minute down
1068                 Timecode::minutes_floor( timecode );
1069
1070                 for (n = 0; n < timecode_nmarks; n++) {
1071                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, false /* use_subframes */ );
1072                         if ((timecode.minutes % timecode_mark_modulo) == 0) {
1073                                 if (timecode.minutes == 0) {
1074                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1075                                 } else {
1076                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1077                                 }
1078                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1079                         } else {
1080                                 snprintf (buf, sizeof(buf)," ");
1081                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1082
1083                         }
1084                         (*marks)[n].label = g_strdup (buf);
1085                         (*marks)[n].position = pos;
1086                         Timecode::increment_minutes( timecode, _session->config.get_subframes_per_frame() );
1087                 }
1088
1089           break;
1090         case timecode_show_hours:
1091                 // Find timecode time of this sample (pos)
1092                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, false /* use_subframes */ );
1093                 // Go to next whole hour down
1094                 Timecode::hours_floor( timecode );
1095
1096                 for (n = 0; n < timecode_nmarks; n++) {
1097                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, false /* use_subframes */ );
1098                         if ((timecode.hours % timecode_mark_modulo) == 0) {
1099                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1100                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1101                         } else {
1102                                 snprintf (buf, sizeof(buf)," ");
1103                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1104
1105                         }
1106                         (*marks)[n].label = g_strdup (buf);
1107                         (*marks)[n].position = pos;
1108
1109                         Timecode::increment_hours( timecode, _session->config.get_subframes_per_frame() );
1110                 }
1111           break;
1112         case timecode_show_frames:
1113                 // Find timecode time of this sample (pos)
1114                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, false /* use_subframes */ );
1115                 // Go to next whole frame down
1116                 Timecode::frames_floor( timecode );
1117
1118                 for (n = 0; n < timecode_nmarks; n++) {
1119                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, false /* use_subframes */ );
1120                         if ((timecode.frames % timecode_mark_modulo) == 0)  {
1121                                 if (timecode.frames == 0) {
1122                                   (*marks)[n].style = GtkCustomRulerMarkMajor;
1123                                 } else {
1124                                   (*marks)[n].style = GtkCustomRulerMarkMinor;
1125                                 }
1126                                 (*marks)[n].position = pos;
1127                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1128                         } else {
1129                                 snprintf (buf, sizeof(buf)," ");
1130                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1131                                 (*marks)[n].position = pos;
1132
1133                         }
1134                         (*marks)[n].label = g_strdup (buf);
1135                         Timecode::increment( timecode, _session->config.get_subframes_per_frame() );
1136                 }
1137
1138           break;
1139         }
1140
1141         return timecode_nmarks;
1142 }
1143
1144
1145 void
1146 Editor::compute_bbt_ruler_scale (framepos_t lower, framepos_t upper)
1147 {
1148         if (_session == 0) {
1149                 return;
1150         }
1151
1152         TempoMap::BBTPointList::const_iterator i;
1153         Timecode::BBT_Time lower_beat, upper_beat; // the beats at each end of the ruler
1154
1155         _session->bbt_time (lower, lower_beat);
1156         _session->bbt_time (upper, upper_beat);
1157         uint32_t beats = 0;
1158
1159         bbt_accent_modulo = 1;
1160         bbt_bar_helper_on = false;
1161         bbt_bars = 0;
1162         bbt_nmarks = 1;
1163
1164         bbt_ruler_scale =  bbt_over;
1165
1166         switch (_snap_type) {
1167         case SnapToBeatDiv2:
1168                 bbt_beat_subdivision = 2;
1169                 break;
1170         case SnapToBeatDiv3:
1171                 bbt_beat_subdivision = 3;
1172                 break;
1173         case SnapToBeatDiv4:
1174                 bbt_beat_subdivision = 4;
1175                 break;
1176         case SnapToBeatDiv5:
1177                 bbt_beat_subdivision = 5;
1178                 bbt_accent_modulo = 2; // XXX YIKES
1179                 break;
1180         case SnapToBeatDiv6:
1181                 bbt_beat_subdivision = 6;
1182                 bbt_accent_modulo = 2; // XXX YIKES
1183                 break;
1184         case SnapToBeatDiv7:
1185                 bbt_beat_subdivision = 7;
1186                 bbt_accent_modulo = 2; // XXX YIKES
1187                 break;
1188         case SnapToBeatDiv8:
1189                 bbt_beat_subdivision = 8;
1190                 bbt_accent_modulo = 2;
1191                 break;
1192         case SnapToBeatDiv10:
1193                 bbt_beat_subdivision = 10;
1194                 bbt_accent_modulo = 2; // XXX YIKES
1195                 break;
1196         case SnapToBeatDiv12:
1197                 bbt_beat_subdivision = 12;
1198                 bbt_accent_modulo = 3;
1199                 break;
1200         case SnapToBeatDiv14:
1201                 bbt_beat_subdivision = 14;
1202                 bbt_accent_modulo = 3; // XXX YIKES!
1203                 break;
1204         case SnapToBeatDiv16:
1205                 bbt_beat_subdivision = 16;
1206                 bbt_accent_modulo = 4;
1207                 break;
1208         case SnapToBeatDiv20:
1209                 bbt_beat_subdivision = 20;
1210                 bbt_accent_modulo = 5;
1211                 break;
1212         case SnapToBeatDiv24:
1213                 bbt_beat_subdivision = 24;
1214                 bbt_accent_modulo = 6;
1215                 break;
1216         case SnapToBeatDiv28:
1217                 bbt_beat_subdivision = 28;
1218                 bbt_accent_modulo = 7;
1219                 break;
1220         case SnapToBeatDiv32:
1221                 bbt_beat_subdivision = 32;
1222                 bbt_accent_modulo = 8;
1223                 break;
1224         case SnapToBeatDiv64:
1225                 bbt_beat_subdivision = 64;
1226                 bbt_accent_modulo = 8;
1227                 break;
1228         case SnapToBeatDiv128:
1229                 bbt_beat_subdivision = 128;
1230                 bbt_accent_modulo = 8;
1231                 break;
1232         default:
1233                 bbt_beat_subdivision = 4;
1234                 break;
1235         }
1236
1237         if (distance (current_bbt_points_begin, current_bbt_points_end) == 0) {
1238                 return;
1239         }
1240
1241         i = current_bbt_points_end;
1242         i--;
1243         if ((*i).beat >= (*current_bbt_points_begin).beat) {
1244                 bbt_bars = (*i).bar - (*current_bbt_points_begin).bar;
1245         } else {
1246                 bbt_bars = (*i).bar - (*current_bbt_points_begin).bar - 1;
1247         }
1248         beats = distance (current_bbt_points_begin, current_bbt_points_end) - bbt_bars;
1249
1250         /* Only show the bar helper if there aren't many bars on the screen */
1251         if ((bbt_bars < 2) || (beats < 5)) {
1252                 bbt_bar_helper_on = true;
1253         }
1254
1255         if (bbt_bars > 8192) {
1256                 bbt_ruler_scale =  bbt_over;
1257         } else if (bbt_bars > 1024) {
1258                 bbt_ruler_scale = bbt_show_64;
1259         } else if (bbt_bars > 256) {
1260                 bbt_ruler_scale = bbt_show_16;
1261         } else if (bbt_bars > 64) {
1262                 bbt_ruler_scale = bbt_show_4;
1263         } else if (bbt_bars > 10) {
1264                 bbt_ruler_scale =  bbt_show_1;
1265         } else if (bbt_bars > 2) {
1266                 bbt_ruler_scale =  bbt_show_beats;
1267         } else  if (bbt_bars > 0) {
1268                 bbt_ruler_scale =  bbt_show_ticks;
1269         } else {
1270                 bbt_ruler_scale =  bbt_show_ticks_detail;
1271         }
1272
1273         if ((bbt_ruler_scale == bbt_show_ticks_detail) && (lower_beat.beats == upper_beat.beats) && (upper_beat.ticks - lower_beat.ticks <= Timecode::BBT_Time::ticks_per_beat / 4)) {
1274                 bbt_ruler_scale =  bbt_show_ticks_super_detail;
1275         }
1276 }
1277
1278 gint
1279 Editor::metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble /*upper*/, gint /*maxchars*/)
1280 {
1281         if (_session == 0) {
1282                 return 0;
1283         }
1284
1285         TempoMap::BBTPointList::const_iterator i;
1286
1287         char buf[64];
1288         gint  n = 0;
1289         framepos_t pos;
1290         Timecode::BBT_Time next_beat;
1291         framepos_t next_beat_pos;
1292         uint32_t beats = 0;
1293
1294         uint32_t tick = 0;
1295         uint32_t skip;
1296         uint32_t t;
1297         framepos_t frame_skip;
1298         double frame_skip_error;
1299         double bbt_position_of_helper;
1300         double accumulated_error;
1301         bool i_am_accented = false;
1302         bool helper_active = false;
1303
1304         if (distance (current_bbt_points_begin, current_bbt_points_end) == 0) {
1305                 return 0;
1306         }
1307
1308         switch (bbt_ruler_scale) {
1309
1310         case bbt_show_beats:
1311                 beats = distance (current_bbt_points_begin, current_bbt_points_end);
1312                 bbt_nmarks = beats + 2;
1313
1314                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1315
1316                 (*marks)[0].label = g_strdup(" ");
1317                 (*marks)[0].position = lower;
1318                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1319
1320                 for (n = 1, i = current_bbt_points_begin; n < bbt_nmarks && i != current_bbt_points_end; ++i) {
1321
1322                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1323                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1324                                 (*marks)[0].label = g_strdup (buf);
1325                                 helper_active = true;
1326                         } else {
1327
1328                                 if ((*i).is_bar()) {
1329                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1330                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1331                                 } else if (((*i).beat % 2 == 1)) {
1332                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1333                                         snprintf (buf, sizeof(buf), " ");
1334                                 } else {
1335                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1336                                         snprintf (buf, sizeof(buf), " ");
1337                                 }
1338                                 (*marks)[n].label =  g_strdup (buf);
1339                                 (*marks)[n].position = (*i).frame;
1340                                 n++;
1341                         }
1342                 }
1343                 break;
1344
1345         case bbt_show_ticks:
1346
1347                 beats = distance (current_bbt_points_begin, current_bbt_points_end);
1348                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1349
1350                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1351                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1352
1353                 (*marks)[0].label = g_strdup(" ");
1354                 (*marks)[0].position = lower;
1355                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1356
1357                 for (n = 1, i = current_bbt_points_begin; n < bbt_nmarks && i != current_bbt_points_end; ++i) {
1358
1359                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1360                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1361                                 (*marks)[0].label = g_strdup (buf);
1362                                 helper_active = true;
1363                         } else {
1364
1365                                 if ((*i).is_bar()) {
1366                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1367                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1368                                 } else {
1369                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1370                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1371                                 }
1372                                 if (((*i).frame < bbt_position_of_helper) && helper_active) {
1373                                         snprintf (buf, sizeof(buf), " ");
1374                                 }
1375                                 (*marks)[n].label =  g_strdup (buf);
1376                                 (*marks)[n].position = (*i).frame;
1377                                 n++;
1378                         }
1379
1380                         /* Add the tick marks */
1381
1382                         /* Find the next beat */
1383                         next_beat.beats = (*i).beat;
1384                         next_beat.bars = (*i).bar;
1385                         next_beat.ticks = 0;
1386
1387                         if ((*i).meter->divisions_per_bar() > (next_beat.beats + 1)) {
1388                                   next_beat.beats += 1;
1389                         } else {
1390                                   next_beat.bars += 1;
1391                                   next_beat.beats = 1;
1392                         }
1393
1394                         next_beat_pos = _session->tempo_map().frame_time(next_beat);
1395
1396                         frame_skip = (framepos_t) floor (frame_skip_error = (_session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1397                         frame_skip_error -= frame_skip;
1398                         skip = (uint32_t) (Timecode::BBT_Time::ticks_per_beat / bbt_beat_subdivision);
1399
1400                         pos = (*i).frame + frame_skip;
1401                         accumulated_error = frame_skip_error;
1402
1403                         tick = skip;
1404
1405                         for (t = 0; (tick < Timecode::BBT_Time::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1406
1407                                 if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1408                                         i_am_accented = true;
1409                                 }
1410
1411                                 snprintf (buf, sizeof(buf), " ");
1412                                 (*marks)[n].label = g_strdup (buf);
1413
1414                                 /* Error compensation for float to framepos_t*/
1415                                 accumulated_error += frame_skip_error;
1416                                 if (accumulated_error > 1) {
1417                                         pos += 1;
1418                                         accumulated_error -= 1.0f;
1419                                 }
1420
1421                                 (*marks)[n].position = pos;
1422
1423                                 if ((bbt_beat_subdivision > 4) && i_am_accented) {
1424                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1425                                 } else {
1426                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1427                                 }
1428                                 i_am_accented = false;
1429                                 n++;
1430                         }
1431                 }
1432
1433           break;
1434
1435         case bbt_show_ticks_detail:
1436
1437                 beats = distance (current_bbt_points_begin, current_bbt_points_end);
1438                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1439
1440                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1441                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1442
1443                 (*marks)[0].label = g_strdup(" ");
1444                 (*marks)[0].position = lower;
1445                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1446
1447                 for (n = 1,   i = current_bbt_points_begin; n < bbt_nmarks && i != current_bbt_points_end; ++i) {
1448
1449                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1450                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1451                                 (*marks)[0].label = g_strdup (buf);
1452                                 helper_active = true;
1453                         } else {
1454
1455                                 if ((*i).is_bar()) {
1456                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1457                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1458                                 } else {
1459                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1460                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1461                                 }
1462                                 if (((*i).frame < bbt_position_of_helper) && helper_active) {
1463                                         snprintf (buf, sizeof(buf), " ");
1464                                 }
1465                                 (*marks)[n].label =  g_strdup (buf);
1466                                 (*marks)[n].position = (*i).frame;
1467                                 n++;
1468                         }
1469
1470                         /* Add the tick marks */
1471
1472                         /* Find the next beat */
1473
1474                         next_beat.beats = (*i).beat;
1475                         next_beat.bars = (*i).bar;
1476
1477                         if ((*i).meter->divisions_per_bar() > (next_beat.beats + 1)) {
1478                                   next_beat.beats += 1;
1479                         } else {
1480                                   next_beat.bars += 1;
1481                                   next_beat.beats = 1;
1482                         }
1483
1484                         next_beat_pos = _session->tempo_map().frame_time(next_beat);
1485
1486                         frame_skip = (framepos_t) floor (frame_skip_error = (_session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1487                         frame_skip_error -= frame_skip;
1488                         skip = (uint32_t) (Timecode::BBT_Time::ticks_per_beat / bbt_beat_subdivision);
1489
1490                         pos = (*i).frame + frame_skip;
1491                         accumulated_error = frame_skip_error;
1492
1493                         tick = skip;
1494
1495                         for (t = 0; (tick < Timecode::BBT_Time::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1496
1497                                 if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1498                                         i_am_accented = true;
1499                                 }
1500
1501                                 if (i_am_accented && (pos > bbt_position_of_helper)){
1502                                         snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1503                                 } else {
1504                                         snprintf (buf, sizeof(buf), " ");
1505                                 }
1506
1507                                 (*marks)[n].label = g_strdup (buf);
1508
1509                                 /* Error compensation for float to framepos_t*/
1510                                 accumulated_error += frame_skip_error;
1511                                 if (accumulated_error > 1) {
1512                                         pos += 1;
1513                                         accumulated_error -= 1.0f;
1514                                 }
1515
1516                                 (*marks)[n].position = pos;
1517
1518                                 if ((bbt_beat_subdivision > 4) && i_am_accented) {
1519                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1520                                 } else {
1521                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1522                                 }
1523                                 i_am_accented = false;
1524                                 n++;
1525                         }
1526                 }
1527
1528           break;
1529
1530         case bbt_show_ticks_super_detail:
1531
1532                 beats = distance (current_bbt_points_begin, current_bbt_points_end);
1533                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1534
1535                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1536                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1537
1538                 (*marks)[0].label = g_strdup(" ");
1539                 (*marks)[0].position = lower;
1540                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1541
1542                 for (n = 1,   i = current_bbt_points_begin; n < bbt_nmarks && i != current_bbt_points_end; ++i) {
1543
1544                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1545                                   snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1546                                   (*marks)[0].label = g_strdup (buf);
1547                                   helper_active = true;
1548                         } else {
1549
1550                                   if ((*i).is_bar()) {
1551                                           (*marks)[n].style = GtkCustomRulerMarkMajor;
1552                                           snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1553                                   } else {
1554                                           (*marks)[n].style = GtkCustomRulerMarkMinor;
1555                                           snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1556                                   }
1557                                   if (((*i).frame < bbt_position_of_helper) && helper_active) {
1558                                           snprintf (buf, sizeof(buf), " ");
1559                                   }
1560                                   (*marks)[n].label =  g_strdup (buf);
1561                                   (*marks)[n].position = (*i).frame;
1562                                   n++;
1563                         }
1564
1565                         /* Add the tick marks */
1566
1567                         /* Find the next beat */
1568
1569                         next_beat.beats = (*i).beat;
1570                         next_beat.bars = (*i).bar;
1571
1572                         if ((*i).meter->divisions_per_bar() > (next_beat.beats + 1)) {
1573                                   next_beat.beats += 1;
1574                         } else {
1575                                   next_beat.bars += 1;
1576                                   next_beat.beats = 1;
1577                         }
1578
1579                         next_beat_pos = _session->tempo_map().frame_time(next_beat);
1580
1581                         frame_skip = (framepos_t) floor (frame_skip_error = (_session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1582                         frame_skip_error -= frame_skip;
1583                         skip = (uint32_t) (Timecode::BBT_Time::ticks_per_beat / bbt_beat_subdivision);
1584
1585                         pos = (*i).frame + frame_skip;
1586                         accumulated_error = frame_skip_error;
1587
1588                         tick = skip;
1589
1590                         for (t = 0; (tick < Timecode::BBT_Time::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1591
1592                                   if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1593                                           i_am_accented = true;
1594                                   }
1595
1596                                   if (pos > bbt_position_of_helper) {
1597                                           snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1598                                   } else {
1599                                           snprintf (buf, sizeof(buf), " ");
1600                                   }
1601
1602                                   (*marks)[n].label = g_strdup (buf);
1603
1604                                   /* Error compensation for float to framepos_t*/
1605                                   accumulated_error += frame_skip_error;
1606                                   if (accumulated_error > 1) {
1607                                           pos += 1;
1608                                           accumulated_error -= 1.0f;
1609                                   }
1610
1611                                   (*marks)[n].position = pos;
1612
1613                                   if ((bbt_beat_subdivision > 4) && i_am_accented) {
1614                                           (*marks)[n].style = GtkCustomRulerMarkMinor;
1615                                   } else {
1616                                           (*marks)[n].style = GtkCustomRulerMarkMicro;
1617                                   }
1618                                   i_am_accented = false;
1619                                   n++;
1620                         }
1621                 }
1622
1623           break;
1624
1625         case bbt_over:
1626                         bbt_nmarks = 1;
1627                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1628                         snprintf (buf, sizeof(buf), "cannot handle %" PRIu32 " bars", bbt_bars );
1629                         (*marks)[0].style = GtkCustomRulerMarkMajor;
1630                         (*marks)[0].label = g_strdup (buf);
1631                         (*marks)[0].position = lower;
1632                         n = 1;
1633
1634           break;
1635
1636         case bbt_show_64:
1637                         bbt_nmarks = (gint) (bbt_bars / 64) + 1;
1638                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1639                         for (n = 0,   i = current_bbt_points_begin; i != current_bbt_points_end && n < bbt_nmarks; i++) {
1640                                 if ((*i).is_bar()) {
1641                                         if ((*i).bar % 64 == 1) {
1642                                                 if ((*i).bar % 256 == 1) {
1643                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1644                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1645                                                 } else {
1646                                                         snprintf (buf, sizeof(buf), " ");
1647                                                         if ((*i).bar % 256 == 129)  {
1648                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1649                                                         } else {
1650                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1651                                                         }
1652                                                 }
1653                                                 (*marks)[n].label = g_strdup (buf);
1654                                                 (*marks)[n].position = (*i).frame;
1655                                                 n++;
1656                                         }
1657                                 }
1658                         }
1659                         break;
1660
1661         case bbt_show_16:
1662                 bbt_nmarks = (bbt_bars / 16) + 1;
1663                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1664                 for (n = 0,  i = current_bbt_points_begin; i != current_bbt_points_end && n < bbt_nmarks; i++) {
1665                         if ((*i).is_bar()) {
1666                           if ((*i).bar % 16 == 1) {
1667                                 if ((*i).bar % 64 == 1) {
1668                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1669                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1670                                 } else {
1671                                         snprintf (buf, sizeof(buf), " ");
1672                                         if ((*i).bar % 64 == 33)  {
1673                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1674                                         } else {
1675                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1676                                         }
1677                                 }
1678                                 (*marks)[n].label = g_strdup (buf);
1679                                 (*marks)[n].position = (*i).frame;
1680                                 n++;
1681                           }
1682                         }
1683                 }
1684           break;
1685
1686         case bbt_show_4:
1687                 bbt_nmarks = (bbt_bars / 4) + 1;
1688                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1689                 for (n = 0,   i = current_bbt_points_begin; i != current_bbt_points_end && n < bbt_nmarks; ++i) {
1690                         if ((*i).is_bar()) {
1691                           if ((*i).bar % 4 == 1) {
1692                                 if ((*i).bar % 16 == 1) {
1693                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1694                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1695                                 } else {
1696                                         snprintf (buf, sizeof(buf), " ");
1697                                         if ((*i).bar % 16 == 9)  {
1698                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1699                                         } else {
1700                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1701                                         }
1702                                 }
1703                                 (*marks)[n].label = g_strdup (buf);
1704                                 (*marks)[n].position = (*i).frame;
1705                                 n++;
1706                           }
1707                         }
1708                 }
1709           break;
1710
1711         case bbt_show_1:
1712   //    default:
1713                 bbt_nmarks = bbt_bars + 2;
1714                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks );
1715                 for (n = 0,  i = current_bbt_points_begin; i != current_bbt_points_end && n < bbt_nmarks; i++) {
1716                         if ((*i).is_bar()) {
1717                           if ((*i).bar % 4 == 1) {
1718                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1719                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1720                           } else {
1721                                 snprintf (buf, sizeof(buf), " ");
1722                                 if ((*i).bar % 4 == 3)  {
1723                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1724                                 } else {
1725                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1726                                 }
1727                           }
1728                         (*marks)[n].label = g_strdup (buf);
1729                         (*marks)[n].position = (*i).frame;
1730                         n++;
1731                         }
1732                 }
1733
1734         break;
1735
1736         }
1737
1738         return n; //return the actual number of marks made, since we might have skipped some from fractional time signatures
1739
1740 }
1741
1742 void
1743 Editor::set_samples_ruler_scale (framepos_t lower, framepos_t upper)
1744 {
1745         _samples_ruler_interval = (upper - lower) / 5;
1746 }
1747
1748 gint
1749 Editor::metric_get_samples (GtkCustomRulerMark **marks, gdouble lower, gdouble /*upper*/, gint /*maxchars*/)
1750 {
1751         framepos_t pos;
1752         framepos_t const ilower = (framepos_t) floor (lower);
1753         gchar buf[16];
1754         gint nmarks;
1755         gint n;
1756
1757         if (_session == 0) {
1758                 return 0;
1759         }
1760
1761         nmarks = 5;
1762         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1763         for (n = 0, pos = ilower; n < nmarks; pos += _samples_ruler_interval, ++n) {
1764                 snprintf (buf, sizeof(buf), "%" PRIi64, pos);
1765                 (*marks)[n].label = g_strdup (buf);
1766                 (*marks)[n].position = pos;
1767                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1768         }
1769
1770         return nmarks;
1771 }
1772
1773 static void
1774 sample_to_clock_parts ( framepos_t sample,
1775                         framepos_t sample_rate,
1776                         long *hrs_p,
1777                         long *mins_p,
1778                         long *secs_p,
1779                         long *millisecs_p)
1780
1781 {
1782         framepos_t left;
1783         long hrs;
1784         long mins;
1785         long secs;
1786         long millisecs;
1787
1788         left = sample;
1789         hrs = left / (sample_rate * 60 * 60);
1790         left -= hrs * sample_rate * 60 * 60;
1791         mins = left / (sample_rate * 60);
1792         left -= mins * sample_rate * 60;
1793         secs = left / sample_rate;
1794         left -= secs * sample_rate;
1795         millisecs = left * 1000 / sample_rate;
1796
1797         *millisecs_p = millisecs;
1798         *secs_p = secs;
1799         *mins_p = mins;
1800         *hrs_p = hrs;
1801
1802         return;
1803 }
1804
1805 void
1806 Editor::set_minsec_ruler_scale (framepos_t lower, framepos_t upper)
1807 {
1808         framepos_t fr;
1809         framepos_t spacer;
1810
1811         if (_session == 0) {
1812                 return;
1813         }
1814
1815         fr = _session->frame_rate();
1816
1817         /* to prevent 'flashing' */
1818         if (lower > (spacer = (framepos_t)(128 * Editor::get_current_zoom ()))) {
1819                 lower -= spacer;
1820         } else {
1821                 lower = 0;
1822         }
1823         upper += spacer;
1824         framecnt_t const range = upper - lower;
1825
1826         if (range <  (fr / 50)) {
1827                 minsec_mark_interval =  fr / 1000; /* show 1/1000 seconds */
1828                 minsec_ruler_scale = minsec_show_frames;
1829                 minsec_mark_modulo = 10;
1830         } else if (range <= (fr / 10)) { /* 0-0.1 second */
1831                 minsec_mark_interval = fr / 1000; /* show 1/1000 seconds */
1832                 minsec_ruler_scale = minsec_show_frames;
1833                 minsec_mark_modulo = 10;
1834         } else if (range <= (fr / 2)) { /* 0-0.5 second */
1835                 minsec_mark_interval = fr / 100;  /* show 1/100 seconds */
1836                 minsec_ruler_scale = minsec_show_frames;
1837                 minsec_mark_modulo = 100;
1838         } else if (range <= fr) { /* 0-1 second */
1839                 minsec_mark_interval = fr / 10;  /* show 1/10 seconds */
1840                 minsec_ruler_scale = minsec_show_frames;
1841                 minsec_mark_modulo = 200;
1842         } else if (range <= 2 * fr) { /* 1-2 seconds */
1843                 minsec_mark_interval = fr / 10; /* show 1/10 seconds */
1844                 minsec_ruler_scale = minsec_show_frames;
1845                 minsec_mark_modulo = 500;
1846         } else if (range <= 8 * fr) { /* 2-5 seconds */
1847                 minsec_mark_interval =  fr / 5; /* show 2 seconds */
1848                 minsec_ruler_scale = minsec_show_frames;
1849                 minsec_mark_modulo = 1000;
1850         } else if (range <= 16 * fr) { /* 8-16 seconds */
1851                 minsec_mark_interval =  fr; /* show 1 seconds */
1852                 minsec_ruler_scale = minsec_show_seconds;
1853                 minsec_mark_modulo = 2;
1854         } else if (range <= 30 * fr) { /* 10-30 seconds */
1855                 minsec_mark_interval =  fr; /* show 1 seconds */
1856                 minsec_ruler_scale = minsec_show_seconds;
1857                 minsec_mark_modulo = 5;
1858         } else if (range <= 60 * fr) { /* 30-60 seconds */
1859                 minsec_mark_interval = fr; /* show 1 seconds */
1860                 minsec_ruler_scale = minsec_show_seconds;
1861                 minsec_mark_modulo = 5;
1862         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1863                 minsec_mark_interval = 5 * fr; /* show 5 seconds */
1864                 minsec_ruler_scale = minsec_show_seconds;
1865                 minsec_mark_modulo = 3;
1866         } else if (range <= 4 * 60 * fr) { /* 4 minutes */
1867                 minsec_mark_interval = 5 * fr; /* show 10 seconds */
1868                 minsec_ruler_scale = minsec_show_seconds;
1869                 minsec_mark_modulo = 30;
1870         } else if (range <= 10 * 60 * fr) { /* 10 minutes */
1871                 minsec_mark_interval = 30 * fr; /* show 30 seconds */
1872                 minsec_ruler_scale = minsec_show_seconds;
1873                 minsec_mark_modulo = 120;
1874         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1875                 minsec_mark_interval =  60 * fr; /* show 1 minute */
1876                 minsec_ruler_scale = minsec_show_minutes;
1877                 minsec_mark_modulo = 5;
1878         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1879                 minsec_mark_interval = 2 * 60 * fr; /* show 2 minutes */
1880                 minsec_ruler_scale = minsec_show_minutes;
1881                 minsec_mark_modulo = 10;
1882         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1883                 minsec_mark_interval = 5 * 60 * fr; /* show 10 minutes */
1884                 minsec_ruler_scale = minsec_show_minutes;
1885                 minsec_mark_modulo = 30;
1886         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1887                 minsec_mark_interval = 20 * 60 * fr; /* show 20 minutes */
1888                 minsec_ruler_scale = minsec_show_minutes;
1889                 minsec_mark_modulo = 60;
1890         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1891                 minsec_mark_interval =  60 * 60 * fr; /* show 60 minutes */
1892                 minsec_ruler_scale = minsec_show_hours;
1893                 minsec_mark_modulo = 2;
1894         } else {
1895
1896                 /* not possible if framepos_t is a 32 bit quantity */
1897
1898                 minsec_mark_interval = 4 * 60 * 60 * fr; /* show 4 hrs */
1899         }
1900         minsec_nmarks = 2 + (range / minsec_mark_interval);
1901 }
1902
1903 gint
1904 Editor::metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble /*upper*/, gint /*maxchars*/)
1905 {
1906         framepos_t pos;
1907         framepos_t spacer;
1908         long hrs, mins, secs, millisecs;
1909         gchar buf[16];
1910         gint n;
1911
1912         if (_session == 0) {
1913                 return 0;
1914         }
1915
1916         /* to prevent 'flashing' */
1917         if (lower > (spacer = (framepos_t) (128 * Editor::get_current_zoom ()))) {
1918                 lower = lower - spacer;
1919         } else {
1920                 lower = 0;
1921         }
1922
1923         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * minsec_nmarks);
1924         pos = ((((framepos_t) floor(lower)) + (minsec_mark_interval/2))/minsec_mark_interval) * minsec_mark_interval;
1925         switch (minsec_ruler_scale) {
1926         case minsec_show_seconds:
1927                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1928                         sample_to_clock_parts (pos, _session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1929                         if (secs % minsec_mark_modulo == 0) {
1930                                 if (secs == 0) {
1931                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1932                                 } else {
1933                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1934                                 }
1935                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1936                         } else {
1937                                 snprintf (buf, sizeof(buf), " ");
1938                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1939                         }
1940                         (*marks)[n].label = g_strdup (buf);
1941                         (*marks)[n].position = pos;
1942                 }
1943           break;
1944         case minsec_show_minutes:
1945                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1946                         sample_to_clock_parts (pos, _session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1947                         if (mins % minsec_mark_modulo == 0) {
1948                                 if (mins == 0) {
1949                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1950                                 } else {
1951                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1952                                 }
1953                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1954                         } else {
1955                                 snprintf (buf, sizeof(buf), " ");
1956                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1957                         }
1958                         (*marks)[n].label = g_strdup (buf);
1959                         (*marks)[n].position = pos;
1960                 }
1961           break;
1962         case minsec_show_hours:
1963                  for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1964                         sample_to_clock_parts (pos, _session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1965                         if (hrs % minsec_mark_modulo == 0) {
1966                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1967                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1968                         } else {
1969                                 snprintf (buf, sizeof(buf), " ");
1970                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1971                         }
1972                         (*marks)[n].label = g_strdup (buf);
1973                         (*marks)[n].position = pos;
1974                 }
1975               break;
1976         case minsec_show_frames:
1977                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1978                         sample_to_clock_parts (pos, _session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1979                         if (millisecs % minsec_mark_modulo == 0) {
1980                                 if (secs == 0) {
1981                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1982                                 } else {
1983                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1984                                 }
1985                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1986                         } else {
1987                                 snprintf (buf, sizeof(buf), " ");
1988                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1989                         }
1990                         (*marks)[n].label = g_strdup (buf);
1991                         (*marks)[n].position = pos;
1992                 }
1993           break;
1994         }
1995
1996         return minsec_nmarks;
1997 }