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