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 #include <cstdio> // for sprintf, grrr
  21 #include <cmath>
  22
  23 #include <string>
  24
  25 #include <gtk/gtkaction.h>
  26
  27 #include <ardour/tempo.h>
  28 #include <ardour/profile.h>
  29 #include <gtkmm2ext/gtk_ui.h>
  30
  31 #include "editor.h"
  32 #include "editing.h"
  33 #include "actions.h"
  34 #include "gtk-custom-hruler.h"
  35 #include "gui_thread.h"
  36
  37 #include "i18n.h"
  38
  39 using namespace sigc;
  40 using namespace ARDOUR;
  41 using namespace PBD;
  42 using namespace Gtk;
  43 using namespace Editing;
  44
  45 Editor *Editor::ruler_editor;
  46
  47 /* the order here must match the "metric" enums in editor.h */
  48
  49 GtkCustomMetric Editor::ruler_metrics[4] = {
  50         {1, Editor::_metric_get_smpte },
  51         {1, Editor::_metric_get_bbt },
  52         {1, Editor::_metric_get_frames },
  53         {1, Editor::_metric_get_minsec }
  54 };
  55
  56 void
  57 Editor::initialize_rulers ()
  58 {
  59         ruler_editor = this;
  60         ruler_grabbed_widget = 0;
  61
  62         _ruler_separator = new Gtk::HSeparator();
  63         _ruler_separator->set_size_request(-1, 2);
  64         _ruler_separator->set_name("TimebarPadding");
  65         _ruler_separator->show();
  66
  67         _smpte_ruler = gtk_custom_hruler_new ();
  68         smpte_ruler = Glib::wrap (_smpte_ruler);
  69         smpte_ruler->set_name ("SMPTERuler");
  70         smpte_ruler->set_size_request (-1, (int)timebar_height);
  71         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
  72
  73         _bbt_ruler = gtk_custom_hruler_new ();
  74         bbt_ruler = Glib::wrap (_bbt_ruler);
  75         bbt_ruler->set_name ("BBTRuler");
  76         bbt_ruler->set_size_request (-1, (int)timebar_height);
  77         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
  78
  79         _frames_ruler = gtk_custom_hruler_new ();
  80         frames_ruler = Glib::wrap (_frames_ruler);
  81         frames_ruler->set_name ("FramesRuler");
  82         frames_ruler->set_size_request (-1, (int)timebar_height);
  83         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
  84
  85         _minsec_ruler = gtk_custom_hruler_new ();
  86         minsec_ruler = Glib::wrap (_minsec_ruler);
  87         minsec_ruler->set_name ("MinSecRuler");
  88         minsec_ruler->set_size_request (-1, (int)timebar_height);
  89         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
  90
  91         visible_timebars = 1; /*this will be changed below */
  92         ruler_pressed_button = 0;
  93         canvas_timebars_vsize = 0;
  94 }
  95
  96 bool
  97 Editor::ruler_scroll (GdkEventScroll* event)
  98 {
  99         nframes64_t xdelta;
 100         int direction = event->direction;
 101         bool handled = false;
 102
 103         switch (direction) {
 104         case GDK_SCROLL_UP:
 105                 temporal_zoom_step (true);
 106                 handled = true;
 107                 break;
 108
 109         case GDK_SCROLL_DOWN:
 110                 temporal_zoom_step (false);
 111                 handled = true;
 112                 break;
 113
 114         case GDK_SCROLL_LEFT:
 115                 xdelta = (current_page_frames() / 2);
 116                 if (leftmost_frame > xdelta) {
 117                         reset_x_origin (leftmost_frame - xdelta);
 118                 } else {
 119                         reset_x_origin (0);
 120                 }
 121                 handled = true;
 122                 break;
 123
 124         case GDK_SCROLL_RIGHT:
 125                 xdelta = (current_page_frames() / 2);
 126                 if (max_frames - xdelta > leftmost_frame) {
 127                         reset_x_origin (leftmost_frame + xdelta);
 128                 } else {
 129                         reset_x_origin (max_frames - current_page_frames());
 130                 }
 131                 handled = true;
 132                 break;
 133
 134         default:
 135                 /* what? */
 136                 break;
 137         }
 138
 139         return handled;
 140 }
 141
 142
 143 gint
 144 Editor::ruler_button_press (GdkEventButton* ev)
 145 {
 146         if (session == 0) {
 147                 return FALSE;
 148         }
 149
 150         ruler_pressed_button = ev->button;
 151
 152         // jlc: grab ev->window ?
 153         //Gtk::Main::grab_add (*minsec_ruler);
 154         Widget * grab_widget = 0;
 155
 156         if (smpte_ruler->is_realized() && ev->window == smpte_ruler->get_window()->gobj()) grab_widget = smpte_ruler;
 157         else if (bbt_ruler->is_realized() && ev->window == bbt_ruler->get_window()->gobj()) grab_widget = bbt_ruler;
 158         else if (frames_ruler->is_realized() && ev->window == frames_ruler->get_window()->gobj()) grab_widget = frames_ruler;
 159         else if (minsec_ruler->is_realized() && ev->window == minsec_ruler->get_window()->gobj()) grab_widget = minsec_ruler;
 160
 161         if (grab_widget) {
 162                 grab_widget->add_modal_grab ();
 163                 ruler_grabbed_widget = grab_widget;
 164         }
 165
 166         gint x,y;
 167         Gdk::ModifierType state;
 168
 169         /* need to use the correct x,y, the event lies */
 170         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 171
 172         nframes64_t where = leftmost_frame + pixel_to_frame (x);
 173
 174         switch (ev->button) {
 175         case 1:
 176                 // Since we will locate the playhead on button release, cancel any running
 177                 // auditions.
 178                 if (session->is_auditioning()) {
 179                         session->cancel_audition ();
 180                 }
 181                 /* playhead cursor */
 182                 snap_to (where);
 183                 playhead_cursor->set_position (where);
 184                 _dragging_playhead = true;
 185                 break;
 186
 187         case 2:
 188                 /* edit point */
 189                 snap_to (where);
 190                 break;
 191
 192         default:
 193                 break;
 194         }
 195
 196         return TRUE;
 197 }
 198
 199 gint
 200 Editor::ruler_button_release (GdkEventButton* ev)
 201 {
 202         gint x,y;
 203         Gdk::ModifierType state;
 204
 205         /* need to use the correct x,y, the event lies */
 206         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 207
 208         ruler_pressed_button = 0;
 209
 210         if (session == 0) {
 211                 return FALSE;
 212         }
 213
 214         stop_canvas_autoscroll();
 215
 216         nframes64_t where = leftmost_frame + pixel_to_frame (x);
 217
 218         switch (ev->button) {
 219         case 1:
 220                 /* transport playhead */
 221                 _dragging_playhead = false;
 222                 snap_to (where);
 223                 session->request_locate (where);
 224                 break;
 225
 226         case 2:
 227                 /* edit point */
 228                 snap_to (where);
 229                 break;
 230
 231         case 3:
 232                 /* popup menu */
 233                 snap_to (where);
 234                 popup_ruler_menu (where);
 235
 236                 break;
 237         default:
 238                 break;
 239         }
 240
 241
 242         if (ruler_grabbed_widget) {
 243                 ruler_grabbed_widget->remove_modal_grab();
 244                 ruler_grabbed_widget = 0;
 245         }
 246
 247         return TRUE;
 248 }
 249
 250 gint
 251 Editor::ruler_label_button_release (GdkEventButton* ev)
 252 {
 253         if (ev->button == 3) {
 254                 Gtk::Menu* m= dynamic_cast<Gtk::Menu*> (ActionManager::get_widget (X_("/RulerMenuPopup")));
 255                 if (m) {
 256                         m->popup (1, ev->time);
 257                 }
 258         }
 259
 260         return TRUE;
 261 }
 262
 263
 264 gint
 265 Editor::ruler_mouse_motion (GdkEventMotion* ev)
 266 {
 267         if (session == 0 || !ruler_pressed_button) {
 268                 return FALSE;
 269         }
 270
 271         double wcx=0,wcy=0;
 272         double cx=0,cy=0;
 273
 274         gint x,y;
 275         Gdk::ModifierType state;
 276
 277         /* need to use the correct x,y, the event lies */
 278         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 279
 280
 281         track_canvas->c2w (x, y, wcx, wcy);
 282         track_canvas->w2c (wcx, wcy, cx, cy);
 283
 284         nframes64_t where = leftmost_frame + pixel_to_frame (x);
 285
 286         /// ripped from maybe_autoscroll, and adapted to work here
 287         nframes64_t rightmost_frame = leftmost_frame + current_page_frames ();
 288
 289         jack_nframes_t frame = pixel_to_frame (cx);
 290
 291         if (autoscroll_timeout_tag < 0) {
 292                 if (frame > rightmost_frame) {
 293                         if (rightmost_frame < max_frames) {
 294                                 start_canvas_autoscroll (1, 0);
 295                         }
 296                 } else if (frame < leftmost_frame) {
 297                         if (leftmost_frame > 0) {
 298                                 start_canvas_autoscroll (-1, 0);
 299                         }
 300                 }
 301         } else {
 302                 if (frame >= leftmost_frame && frame < rightmost_frame) {
 303                         stop_canvas_autoscroll ();
 304                 }
 305         }
 306         //////
 307
 308         snap_to (where);
 309
 310         Cursor* cursor = 0;
 311
 312         switch (ruler_pressed_button) {
 313         case 1:
 314                 /* transport playhead */
 315                 cursor = playhead_cursor;
 316                 break;
 317
 318         case 2:
 319                 /* edit point */
 320                 // EDIT CURSOR XXX do something useful
 321                 break;
 322
 323         default:
 324                 break;
 325         }
 326
 327         if (cursor) {
 328                 cursor->set_position (where);
 329
 330                 if (cursor == playhead_cursor) {
 331                         UpdateAllTransportClocks (cursor->current_frame);
 332                 }
 333         }
 334
 335         return TRUE;
 336 }
 337
 338
 339 void
 340 Editor::popup_ruler_menu (nframes64_t where, ItemType t)
 341 {
 342         using namespace Menu_Helpers;
 343
 344         if (editor_ruler_menu == 0) {
 345                 editor_ruler_menu = new Menu;
 346                 editor_ruler_menu->set_name ("ArdourContextMenu");
 347         }
 348
 349         // always build from scratch
 350         MenuList& ruler_items = editor_ruler_menu->items();
 351         editor_ruler_menu->set_name ("ArdourContextMenu");
 352         ruler_items.clear();
 353
 354         switch (t) {
 355         case MarkerBarItem:
 356                 ruler_items.push_back (MenuElem (_("New location marker"), bind ( mem_fun(*this, &Editor::mouse_add_new_marker), where, false, false)));
 357                 ruler_items.push_back (MenuElem (_("Clear all locations"), mem_fun(*this, &Editor::clear_markers)));
 358                 ruler_items.push_back (MenuElem (_("Unhide locations"), mem_fun(*this, &Editor::unhide_markers)));
 359                 ruler_items.push_back (SeparatorElem ());
 360                 break;
 361         case RangeMarkerBarItem:
 362                 //ruler_items.push_back (MenuElem (_("New Range")));
 363                 ruler_items.push_back (MenuElem (_("Clear all ranges"), mem_fun(*this, &Editor::clear_ranges)));
 364                 ruler_items.push_back (MenuElem (_("Unhide ranges"), mem_fun(*this, &Editor::unhide_ranges)));
 365                 ruler_items.push_back (SeparatorElem ());
 366
 367                 break;
 368         case TransportMarkerBarItem:
 369
 370                 break;
 371
 372         case CdMarkerBarItem:
 373                 // TODO
 374                 ruler_items.push_back (MenuElem (_("New CD track marker"), bind ( mem_fun(*this, &Editor::mouse_add_new_marker), where, true, false)));
 375                 break;
 376
 377
 378         case TempoBarItem:
 379                 ruler_items.push_back (MenuElem (_("New Tempo"), bind ( mem_fun(*this, &Editor::mouse_add_new_tempo_event), where)));
 380                 ruler_items.push_back (MenuElem (_("Clear tempo")));
 381                 ruler_items.push_back (SeparatorElem ());
 382                 break;
 383
 384         case MeterBarItem:
 385                 ruler_items.push_back (MenuElem (_("New Meter"), bind ( mem_fun(*this, &Editor::mouse_add_new_meter_event), where)));
 386                 ruler_items.push_back (MenuElem (_("Clear meter")));
 387                 ruler_items.push_back (SeparatorElem ());
 388                 break;
 389
 390         default:
 391                 break;
 392         }
 393
 394         Glib::RefPtr<Action> action;
 395
 396         action = ActionManager::get_action ("Rulers", "toggle-minsec-ruler");
 397         if (action) {
 398                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 399         }
 400         if (!Profile->get_sae()) {
 401                 action = ActionManager::get_action ("Rulers", "toggle-timecode-ruler");
 402                 if (action) {
 403                         ruler_items.push_back (MenuElem (*action->create_menu_item()));
 404                 }
 405         }
 406         action = ActionManager::get_action ("Rulers", "toggle-samples-ruler");
 407         if (action) {
 408                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 409         }
 410         action = ActionManager::get_action ("Rulers", "toggle-bbt-ruler");
 411         if (action) {
 412                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 413         }
 414         action = ActionManager::get_action ("Rulers", "toggle-meter-ruler");
 415         if (action) {
 416                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 417         }
 418         action = ActionManager::get_action ("Rulers", "toggle-tempo-ruler");
 419         if (action) {
 420                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 421         }
 422         if (!Profile->get_sae()) {
 423                 action = ActionManager::get_action ("Rulers", "toggle-range-ruler");
 424                 if (action) {
 425                         ruler_items.push_back (MenuElem (*action->create_menu_item()));
 426                 }
 427         }
 428         action = ActionManager::get_action ("Rulers", "toggle-loop-punch-ruler");
 429         if (action) {
 430                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 431         }
 432         action = ActionManager::get_action ("Rulers", "toggle-cd-marker-ruler");
 433         if (action) {
 434                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 435         }
 436         action = ActionManager::get_action ("Rulers", "toggle-marker-ruler");
 437         if (action) {
 438                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 439         }
 440
 441         editor_ruler_menu->popup (1, gtk_get_current_event_time());
 442
 443         no_ruler_shown_update = false;
 444 }
 445
 446 void
 447 Editor::store_ruler_visibility ()
 448 {
 449         XMLNode* node = new XMLNode(X_("RulerVisibility"));
 450
 451         node->add_property (X_("smpte"), ruler_timecode_action->get_active() ? "yes": "no");
 452         node->add_property (X_("bbt"), ruler_bbt_action->get_active() ? "yes": "no");
 453         node->add_property (X_("frames"), ruler_samples_action->get_active() ? "yes": "no");
 454         node->add_property (X_("minsec"), ruler_minsec_action->get_active() ? "yes": "no");
 455         node->add_property (X_("tempo"), ruler_tempo_action->get_active() ? "yes": "no");
 456         node->add_property (X_("meter"), ruler_meter_action->get_active() ? "yes": "no");
 457         node->add_property (X_("marker"), ruler_marker_action->get_active() ? "yes": "no");
 458         node->add_property (X_("rangemarker"), ruler_range_action->get_active() ? "yes": "no");
 459         node->add_property (X_("transportmarker"), ruler_loop_punch_action->get_active() ? "yes": "no");
 460         node->add_property (X_("cdmarker"), ruler_cd_marker_action->get_active() ? "yes": "no");
 461
 462         session->add_extra_xml (*node);
 463         session->set_dirty ();
 464 }
 465
 466 void
 467 Editor::restore_ruler_visibility ()
 468 {
 469         XMLProperty* prop;
 470         XMLNode * node = session->extra_xml (X_("RulerVisibility"));
 471
 472         no_ruler_shown_update = true;
 473
 474         if (node) {
 475                 if ((prop = node->property ("smpte")) != 0) {
 476                         if (prop->value() == "yes")
 477                                 ruler_timecode_action->set_active (true);
 478                         else
 479                                 ruler_timecode_action->set_active (false);
 480                 }
 481                 if ((prop = node->property ("bbt")) != 0) {
 482                         if (prop->value() == "yes")
 483                                 ruler_bbt_action->set_active (true);
 484                         else
 485                                 ruler_bbt_action->set_active (false);
 486                 }
 487                 if ((prop = node->property ("frames")) != 0) {
 488                         if (prop->value() == "yes")
 489                                 ruler_samples_action->set_active (true);
 490                         else
 491                                 ruler_samples_action->set_active (false);
 492                 }
 493                 if ((prop = node->property ("minsec")) != 0) {
 494                         if (prop->value() == "yes")
 495                                 ruler_minsec_action->set_active (true);
 496                         else
 497                                 ruler_minsec_action->set_active (false);
 498                 }
 499                 if ((prop = node->property ("tempo")) != 0) {
 500                         if (prop->value() == "yes")
 501                                 ruler_tempo_action->set_active (true);
 502                         else
 503                                 ruler_tempo_action->set_active (false);
 504                 }
 505                 if ((prop = node->property ("meter")) != 0) {
 506                         if (prop->value() == "yes")
 507                                 ruler_meter_action->set_active (true);
 508                         else
 509                                 ruler_meter_action->set_active (false);
 510                 }
 511                 if ((prop = node->property ("marker")) != 0) {
 512                         if (prop->value() == "yes")
 513                                 ruler_marker_action->set_active (true);
 514                         else
 515                                 ruler_marker_action->set_active (false);
 516                 }
 517                 if ((prop = node->property ("rangemarker")) != 0) {
 518                         if (prop->value() == "yes")
 519                                 ruler_range_action->set_active (true);
 520                         else
 521                                 ruler_range_action->set_active (false);
 522                 }
 523
 524                 if ((prop = node->property ("transportmarker")) != 0) {
 525                         if (prop->value() == "yes")
 526                                 ruler_loop_punch_action->set_active (true);
 527                         else
 528                                 ruler_loop_punch_action->set_active (false);
 529                 }
 530
 531                 if ((prop = node->property ("cdmarker")) != 0) {
 532                         if (prop->value() == "yes")
 533                                 ruler_cd_marker_action->set_active (true);
 534                         else
 535                                 ruler_cd_marker_action->set_active (false);
 536
 537                 } else {
 538                         // this session doesn't yet know about the cdmarker ruler
 539                         // as a benefit to the user who doesn't know the feature exists, show the ruler if
 540                         // any cd marks exist
 541                         ruler_cd_marker_action->set_active (false);
 542                         const Locations::LocationList & locs = session->locations()->list();
 543                         for (Locations::LocationList::const_iterator i = locs.begin(); i != locs.end(); ++i) {
 544                                 if ((*i)->is_cd_marker()) {
 545                                         ruler_cd_marker_action->set_active (true);
 546                                         break;
 547                                 }
 548                         }
 549                 }
 550
 551         }
 552
 553         no_ruler_shown_update = false;
 554
 555         update_ruler_visibility ();
 556 }
 557
 558 void
 559 Editor::update_ruler_visibility ()
 560 {
 561         using namespace Box_Helpers;
 562         BoxList & lab_children =  time_button_vbox.children();
 563         BoxList & ruler_lab_children =  ruler_label_vbox.children();
 564         BoxList & ruler_children =  time_canvas_vbox.children();
 565         int visible_rulers = 0;
 566
 567         if (no_ruler_shown_update) {
 568                 return;
 569         }
 570
 571         visible_timebars = 0;
 572
 573         lab_children.clear();
 574         ruler_lab_children.clear();
 575
 576         // leave the last one (the time_canvas) intact
 577         while (ruler_children.size() > 0) {
 578                 ruler_children.pop_front();
 579         }
 580
 581         BoxList::iterator canvaspos = ruler_children.begin();
 582
 583         _smpte_ruler = gtk_custom_hruler_new ();
 584         smpte_ruler = Glib::wrap (_smpte_ruler);
 585         smpte_ruler->set_name ("SMPTERuler");
 586         smpte_ruler->set_size_request (-1, (int)timebar_height);
 587         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
 588
 589         _bbt_ruler = gtk_custom_hruler_new ();
 590         bbt_ruler = Glib::wrap (_bbt_ruler);
 591         bbt_ruler->set_name ("BBTRuler");
 592         bbt_ruler->set_size_request (-1, (int)timebar_height);
 593         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 594
 595         _frames_ruler = gtk_custom_hruler_new ();
 596         frames_ruler = Glib::wrap (_frames_ruler);
 597         frames_ruler->set_name ("FramesRuler");
 598         frames_ruler->set_size_request (-1, (int)timebar_height);
 599         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
 600
 601         _minsec_ruler = gtk_custom_hruler_new ();
 602         minsec_ruler = Glib::wrap (_minsec_ruler);
 603         minsec_ruler->set_name ("MinSecRuler");
 604         minsec_ruler->set_size_request (-1, (int)timebar_height);
 605         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
 606
 607         smpte_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 608         bbt_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 609         frames_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 610         minsec_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 611
 612         smpte_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 613         bbt_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 614         frames_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 615         minsec_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 616
 617         smpte_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 618         bbt_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 619         frames_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 620         minsec_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 621
 622         smpte_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 623         bbt_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 624         frames_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 625         minsec_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 626
 627         smpte_ruler->signal_scroll_event().connect (mem_fun(*this, &Editor::ruler_scroll));
 628         bbt_ruler->signal_scroll_event().connect (mem_fun(*this, &Editor::ruler_scroll));
 629         frames_ruler->signal_scroll_event().connect (mem_fun(*this, &Editor::ruler_scroll));
 630         minsec_ruler->signal_scroll_event().connect (mem_fun(*this, &Editor::ruler_scroll));
 631
 632         ruler_children.insert (canvaspos, Element(*_ruler_separator, PACK_SHRINK, PACK_START));
 633
 634         if (ruler_minsec_action->get_active()) {
 635                 ruler_lab_children.push_back (Element(minsec_label, PACK_SHRINK, PACK_START));
 636                 ruler_children.insert (canvaspos, Element(*minsec_ruler, PACK_SHRINK, PACK_START));
 637                 visible_rulers++;
 638         }
 639
 640         if (ruler_timecode_action->get_active()) {
 641                 ruler_lab_children.push_back (Element(smpte_label, PACK_SHRINK, PACK_START));
 642                 ruler_children.insert (canvaspos, Element(*smpte_ruler, PACK_SHRINK, PACK_START));
 643                 visible_rulers++;
 644         }
 645
 646         if (ruler_samples_action->get_active()) {
 647                 ruler_lab_children.push_back (Element(frame_label, PACK_SHRINK, PACK_START));
 648                 ruler_children.insert (canvaspos, Element(*frames_ruler, PACK_SHRINK, PACK_START));
 649                 visible_rulers++;
 650         }
 651
 652         if (ruler_bbt_action->get_active()) {
 653                 ruler_lab_children.push_back (Element(bbt_label, PACK_SHRINK, PACK_START));
 654                 ruler_children.insert (canvaspos, Element(*bbt_ruler, PACK_SHRINK, PACK_START));
 655                 visible_rulers++;
 656         }
 657
 658         double tbpos = 0.0;
 659         double tbgpos = 0.0;
 660         double old_unit_pos;
 661
 662         if (ruler_meter_action->get_active()) {
 663                 lab_children.push_back (Element(meter_label, PACK_SHRINK, PACK_START));
 664
 665                 old_unit_pos = meter_group->property_y();
 666                 if (tbpos != old_unit_pos) {
 667                         meter_group->move ( 0.0, tbpos - old_unit_pos);
 668                 }
 669                 old_unit_pos = meter_bar_group->property_y();
 670                 if (tbgpos != old_unit_pos) {
 671                         meter_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 672                 }
 673                 meter_bar_group->show();
 674                 meter_group->show();
 675                 tbpos += timebar_height;
 676                 tbgpos += timebar_height;
 677                 visible_timebars++;
 678         } else {
 679                 meter_bar_group->hide();
 680                 meter_group->hide();
 681         }
 682
 683         if (ruler_tempo_action->get_active()) {
 684                 lab_children.push_back (Element(tempo_label, PACK_SHRINK, PACK_START));
 685                 old_unit_pos = tempo_group->property_y();
 686                 if (tbpos != old_unit_pos) {
 687                         tempo_group->move(0.0, tbpos - old_unit_pos);
 688                 }
 689                 old_unit_pos = tempo_bar_group->property_y();
 690                 if (tbgpos != old_unit_pos) {
 691                         tempo_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 692                 }
 693                 tempo_bar_group->show();
 694                 tempo_group->show();
 695                 tbpos += timebar_height;
 696                 tbgpos += timebar_height;
 697                 visible_timebars++;
 698         } else {
 699                 tempo_bar_group->hide();
 700                 tempo_group->hide();
 701         }
 702
 703         if (!Profile->get_sae() && ruler_range_action->get_active()) {
 704                 lab_children.push_back (Element(range_mark_label, PACK_SHRINK, PACK_START));
 705                 old_unit_pos = range_marker_group->property_y();
 706                 if (tbpos != old_unit_pos) {
 707                         range_marker_group->move (0.0, tbpos - old_unit_pos);
 708                 }
 709                 old_unit_pos = range_marker_bar_group->property_y();
 710                 if (tbgpos != old_unit_pos) {
 711                         range_marker_bar_group->move (0.0, tbgpos - old_unit_pos);
 712                 }
 713                 range_marker_bar_group->show();
 714                 range_marker_group->show();
 715                 tbpos += timebar_height;
 716                 tbgpos += timebar_height;
 717                 visible_timebars++;
 718         } else {
 719                 range_marker_bar_group->hide();
 720                 range_marker_group->hide();
 721         }
 722
 723         if (ruler_loop_punch_action->get_active()) {
 724                 lab_children.push_back (Element(transport_mark_label, PACK_SHRINK, PACK_START));
 725                 old_unit_pos = transport_marker_group->property_y();
 726                 if (tbpos != old_unit_pos) {
 727                         transport_marker_group->move ( 0.0, tbpos - old_unit_pos);
 728                 }
 729                 old_unit_pos = transport_marker_bar_group->property_y();
 730                 if (tbgpos != old_unit_pos) {
 731                         transport_marker_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 732                 }
 733                 transport_marker_bar_group->show();
 734                 transport_marker_group->show();
 735                 tbpos += timebar_height;
 736                 tbgpos += timebar_height;
 737                 visible_timebars++;
 738         } else {
 739                 transport_marker_bar_group->hide();
 740                 transport_marker_group->hide();
 741         }
 742
 743         if (ruler_cd_marker_action->get_active()) {
 744                 lab_children.push_back (Element(cd_mark_label, PACK_SHRINK, PACK_START));
 745                 old_unit_pos = cd_marker_group->property_y();
 746                 if (tbpos != old_unit_pos) {
 747                         cd_marker_group->move (0.0, tbpos - old_unit_pos);
 748                 }
 749                 old_unit_pos = cd_marker_bar_group->property_y();
 750                 if (tbgpos != old_unit_pos) {
 751                         cd_marker_bar_group->move (0.0, tbgpos - old_unit_pos);
 752                 }
 753                 cd_marker_bar_group->show();
 754                 cd_marker_group->show();
 755                 tbpos += timebar_height;
 756                 tbgpos += timebar_height;
 757                 visible_timebars++;
 758                 // make sure all cd markers show up in their respective places
 759                 update_cd_marker_display();
 760         } else {
 761                 cd_marker_bar_group->hide();
 762                 cd_marker_group->hide();
 763                 // make sure all cd markers show up in their respective places
 764                 update_cd_marker_display();
 765         }
 766
 767         if (ruler_marker_action->get_active()) {
 768                 lab_children.push_back (Element(mark_label, PACK_SHRINK, PACK_START));
 769                 old_unit_pos = marker_group->property_y();
 770                 if (tbpos != old_unit_pos) {
 771                         marker_group->move ( 0.0, tbpos - old_unit_pos);
 772                 }
 773                 old_unit_pos = marker_bar_group->property_y();
 774                 if (tbgpos != old_unit_pos) {
 775                         marker_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 776                 }
 777                 marker_bar_group->show();
 778                 marker_group->show();
 779                 tbpos += timebar_height;
 780                 tbgpos += timebar_height;
 781                 visible_timebars++;
 782         } else {
 783                 marker_bar_group->hide();
 784                 marker_group->hide();
 785         }
 786
 787         gdouble old_canvas_timebars_vsize = canvas_timebars_vsize;
 788         canvas_timebars_vsize = (timebar_height * visible_timebars) - 1;
 789         gdouble vertical_pos_delta = canvas_timebars_vsize - old_canvas_timebars_vsize;
 790         vertical_adjustment.set_upper(vertical_adjustment.get_upper() + vertical_pos_delta);
 791         full_canvas_height += vertical_pos_delta;
 792
 793         if (vertical_adjustment.get_value() != 0 && (vertical_adjustment.get_value() + canvas_height >= full_canvas_height)) {
 794                 /*if we're at the bottom of the canvas, don't move the _trackview_group*/
 795                 vertical_adjustment.set_value (full_canvas_height - canvas_height + 1);
 796         } else {
 797                 _trackview_group->property_y () = - get_trackview_group_vertical_offset ();
 798                 _trackview_group->move (0, 0);
 799                 last_trackview_group_vertical_offset = get_trackview_group_vertical_offset ();
 800         }
 801
 802         ruler_label_vbox.set_size_request (-1, (int)(timebar_height * visible_rulers));
 803
 804         time_canvas_vbox.set_size_request (-1,-1);
 805         time_canvas_event_box.queue_resize();
 806         compute_fixed_ruler_scale();
 807         update_fixed_rulers();
 808
 809         time_canvas_event_box.show_all();
 810         ruler_label_event_box.show_all();
 811         time_button_event_box.show_all();
 812
 813         compute_current_bbt_points (leftmost_frame, leftmost_frame + (nframes64_t)(edit_packer.get_width() * frames_per_unit));
 814         compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + (nframes64_t)(edit_packer.get_width() * frames_per_unit));
 815
 816         redisplay_tempo (false);
 817 }
 818
 819 void
 820 Editor::update_just_smpte ()
 821 {
 822         ENSURE_GUI_THREAD(mem_fun(*this, &Editor::update_just_smpte));
 823
 824         if (session == 0) {
 825                 return;
 826         }
 827
 828         nframes64_t rightmost_frame = leftmost_frame + current_page_frames();
 829
 830         if (ruler_timecode_action->get_active()) {
 831                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 832                                             leftmost_frame, session->current_end_frame());
 833         }
 834 }
 835
 836 void
 837 Editor::compute_fixed_ruler_scale ()
 838 {
 839         if (session == 0) {
 840                 return;
 841         }
 842
 843         if (ruler_timecode_action->get_active()) {
 844                 set_smpte_ruler_scale (leftmost_frame, leftmost_frame + (edit_packer.get_width() * frames_per_unit) );
 845         }
 846
 847         if (ruler_minsec_action->get_active()) {
 848                 set_minsec_ruler_scale (leftmost_frame, leftmost_frame + (edit_packer.get_width() * frames_per_unit) );
 849         }
 850 }
 851
 852 void
 853 Editor::update_fixed_rulers ()
 854 {
 855         nframes64_t rightmost_frame;
 856
 857         if (session == 0) {
 858                 return;
 859         }
 860
 861         ruler_metrics[ruler_metric_smpte].units_per_pixel = frames_per_unit;
 862         ruler_metrics[ruler_metric_frames].units_per_pixel = frames_per_unit;
 863         ruler_metrics[ruler_metric_minsec].units_per_pixel = frames_per_unit;
 864
 865         rightmost_frame = leftmost_frame + current_page_frames ();
 866
 867         /* these force a redraw, which in turn will force execution of the metric callbacks
 868            to compute the relevant ticks to display.
 869         */
 870
 871         if (ruler_timecode_action->get_active()) {
 872                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 873                                             leftmost_frame, session->current_end_frame());
 874         }
 875
 876         if (ruler_samples_action->get_active()) {
 877                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_frames_ruler), leftmost_frame, rightmost_frame,
 878                                             leftmost_frame, session->current_end_frame());
 879         }
 880
 881         if (ruler_minsec_action->get_active()) {
 882                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_minsec_ruler), leftmost_frame, rightmost_frame,
 883                                             leftmost_frame, session->current_end_frame());
 884         }
 885 }
 886
 887 void
 888 Editor::update_tempo_based_rulers ()
 889 {
 890         if (session == 0) {
 891                 return;
 892         }
 893
 894         ruler_metrics[ruler_metric_bbt].units_per_pixel = frames_per_unit;
 895
 896         if (ruler_bbt_action->get_active()) {
 897                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_bbt_ruler), leftmost_frame, leftmost_frame+current_page_frames(),
 898                                             leftmost_frame, session->current_end_frame());
 899         }
 900 }
 901
 902 /* Mark generation */
 903
 904 gint
 905 Editor::_metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 906 {
 907         return ruler_editor->metric_get_smpte (marks, lower, upper, maxchars);
 908 }
 909
 910 gint
 911 Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 912 {
 913         return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 914 }
 915
 916 gint
 917 Editor::_metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 918 {
 919         return ruler_editor->metric_get_frames (marks, lower, upper, maxchars);
 920 }
 921
 922 gint
 923 Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 924 {
 925         return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 926 }
 927
 928 void
 929 Editor::set_smpte_ruler_scale (gdouble lower, gdouble upper)
 930 {
 931         nframes64_t range;
 932         nframes64_t spacer;
 933         nframes64_t fr;
 934
 935         if (session == 0) {
 936                 return;
 937         }
 938
 939         fr = session->frame_rate();
 940
 941         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
 942                 lower = lower - spacer;
 943         } else {
 944                 lower = 0;
 945         }
 946         upper = upper + spacer;
 947         range = (nframes64_t) floor (upper - lower);
 948
 949         if (range < (2 * session->frames_per_smpte_frame())) { /* 0 - 2 frames */
 950                 smpte_ruler_scale = smpte_show_bits;
 951                 smpte_mark_modulo = 20;
 952                 smpte_nmarks = 2 + (2 * Config->get_subframes_per_frame());
 953         } else if (range <= (fr / 4)) { /* 2 frames - 0.250 second */
 954                 smpte_ruler_scale = smpte_show_frames;
 955                 smpte_mark_modulo = 1;
 956                 smpte_nmarks = 2 + (range / (nframes64_t)session->frames_per_smpte_frame());
 957         } else if (range <= (fr / 2)) { /* 0.25-0.5 second */
 958                 smpte_ruler_scale = smpte_show_frames;
 959                 smpte_mark_modulo = 2;
 960                 smpte_nmarks = 2 + (range / (nframes64_t)session->frames_per_smpte_frame());
 961         } else if (range <= fr) { /* 0.5-1 second */
 962                 smpte_ruler_scale = smpte_show_frames;
 963                 smpte_mark_modulo = 5;
 964                 smpte_nmarks = 2 + (range / (nframes64_t)session->frames_per_smpte_frame());
 965         } else if (range <= 2 * fr) { /* 1-2 seconds */
 966                 smpte_ruler_scale = smpte_show_frames;
 967                 smpte_mark_modulo = 10;
 968                 smpte_nmarks = 2 + (range / (nframes64_t)session->frames_per_smpte_frame());
 969         } else if (range <= 8 * fr) { /* 2-8 seconds */
 970                 smpte_ruler_scale = smpte_show_seconds;
 971                 smpte_mark_modulo = 1;
 972                 smpte_nmarks = 2 + (range / fr);
 973         } else if (range <= 16 * fr) { /* 8-16 seconds */
 974                 smpte_ruler_scale = smpte_show_seconds;
 975                 smpte_mark_modulo = 2;
 976                 smpte_nmarks = 2 + (range / fr);
 977         } else if (range <= 30 * fr) { /* 16-30 seconds */
 978                 smpte_ruler_scale = smpte_show_seconds;
 979                 smpte_mark_modulo = 5;
 980                 smpte_nmarks = 2 + (range / fr);
 981         } else if (range <= 60 * fr) { /* 30-60 seconds */
 982                 smpte_ruler_scale = smpte_show_seconds;
 983                 smpte_mark_modulo = 5;
 984                 smpte_nmarks = 2 + (range / fr);
 985         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
 986                 smpte_ruler_scale = smpte_show_seconds;
 987                 smpte_mark_modulo = 15;
 988                 smpte_nmarks = 2 + (range / fr);
 989         } else if (range <= 4 * 60 * fr) { /* 2-4 minutes */
 990                 smpte_ruler_scale = smpte_show_seconds;
 991                 smpte_mark_modulo = 30;
 992                 smpte_nmarks = 2 + (range / fr);
 993         } else if (range <= 10 * 60 * fr) { /* 4-10 minutes */
 994                 smpte_ruler_scale = smpte_show_minutes;
 995                 smpte_mark_modulo = 2;
 996                 smpte_nmarks = 2 + 10;
 997         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
 998                 smpte_ruler_scale = smpte_show_minutes;
 999                 smpte_mark_modulo = 5;
1000                 smpte_nmarks = 2 + 30;
1001         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1002                 smpte_ruler_scale = smpte_show_minutes;
1003                 smpte_mark_modulo = 10;
1004                 smpte_nmarks = 2 + 60;
1005         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1006                 smpte_ruler_scale = smpte_show_minutes;
1007                 smpte_mark_modulo = 30;
1008                 smpte_nmarks = 2 + (60 * 4);
1009         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1010                 smpte_ruler_scale = smpte_show_hours;
1011                 smpte_mark_modulo = 1;
1012                 smpte_nmarks = 2 + 8;
1013         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1014                 smpte_ruler_scale = smpte_show_hours;
1015                 smpte_mark_modulo = 1;
1016                 smpte_nmarks = 2 + 24;
1017         } else {
1018
1019                 /* not possible if nframes64_t is a 32 bit quantity */
1020
1021                 smpte_ruler_scale = smpte_show_hours;
1022                 smpte_mark_modulo = 4;
1023                 smpte_nmarks = 2 + 24;
1024         }
1025
1026 }
1027
1028 gint
1029 Editor::metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1030 {
1031         nframes_t pos;
1032         nframes64_t spacer;
1033         SMPTE::Time smpte;
1034         gchar buf[16];
1035         gint n;
1036
1037         if (session == 0) {
1038                 return 0;
1039         }
1040
1041         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
1042                 lower = lower - spacer;
1043         } else {
1044                 lower = 0;
1045         }
1046
1047         pos = (nframes_t) floor (lower);
1048
1049         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * smpte_nmarks);
1050         switch (smpte_ruler_scale) {
1051         case smpte_show_bits:
1052
1053                 // Find smpte time of this sample (pos) with subframe accuracy
1054                 session->sample_to_smpte(pos, smpte, true /* use_offset */, true /* use_subframes */ );
1055
1056                 for (n = 0; n < smpte_nmarks; n++) {
1057                         session->smpte_to_sample(smpte, pos, true /* use_offset */, true /* use_subframes */ );
1058                         if ((smpte.subframes % smpte_mark_modulo) == 0) {
1059                                 if (smpte.subframes == 0) {
1060                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1061                                         snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1062                                 } else {
1063                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1064                                         snprintf (buf, sizeof(buf), ".%02u", smpte.subframes);
1065                                 }
1066                         } else {
1067                                 snprintf (buf, sizeof(buf)," ");
1068                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1069
1070                         }
1071                         (*marks)[n].label = g_strdup (buf);
1072                         (*marks)[n].position = pos;
1073
1074                         // Increment subframes by one
1075                         SMPTE::increment_subframes( smpte );
1076                 }
1077           break;
1078         case smpte_show_seconds:
1079                 // Find smpte time of this sample (pos)
1080                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1081                 // Go to next whole second down
1082                 SMPTE::seconds_floor( smpte );
1083
1084                 for (n = 0; n < smpte_nmarks; n++) {
1085                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1086                         if ((smpte.seconds % smpte_mark_modulo) == 0) {
1087                                 if (smpte.seconds == 0) {
1088                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1089                                         (*marks)[n].position = pos;
1090                                 } else {
1091                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1092                                         (*marks)[n].position = pos;
1093                                 }
1094                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1095                         } else {
1096                                 snprintf (buf, sizeof(buf)," ");
1097                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1098                                 (*marks)[n].position = pos;
1099
1100                         }
1101                         (*marks)[n].label = g_strdup (buf);
1102                         SMPTE::increment_seconds( smpte );
1103                 }
1104           break;
1105         case smpte_show_minutes:
1106                 // Find smpte time of this sample (pos)
1107                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1108                 // Go to next whole minute down
1109                 SMPTE::minutes_floor( smpte );
1110
1111                 for (n = 0; n < smpte_nmarks; n++) {
1112                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1113                         if ((smpte.minutes % smpte_mark_modulo) == 0) {
1114                                 if (smpte.minutes == 0) {
1115                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1116                                 } else {
1117                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1118                                 }
1119                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1120                         } else {
1121                                 snprintf (buf, sizeof(buf)," ");
1122                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1123
1124                         }
1125                         (*marks)[n].label = g_strdup (buf);
1126                         (*marks)[n].position = pos;
1127                         SMPTE::increment_minutes( smpte );
1128                 }
1129
1130           break;
1131         case smpte_show_hours:
1132                 // Find smpte time of this sample (pos)
1133                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1134                 // Go to next whole hour down
1135                 SMPTE::hours_floor( smpte );
1136
1137                 for (n = 0; n < smpte_nmarks; n++) {
1138                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1139                         if ((smpte.hours % smpte_mark_modulo) == 0) {
1140                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1141                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1142                         } else {
1143                                 snprintf (buf, sizeof(buf)," ");
1144                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1145
1146                         }
1147                         (*marks)[n].label = g_strdup (buf);
1148                         (*marks)[n].position = pos;
1149
1150                         SMPTE::increment_hours( smpte );
1151                 }
1152           break;
1153         case smpte_show_frames:
1154                 // Find smpte time of this sample (pos)
1155                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1156                 // Go to next whole frame down
1157                 SMPTE::frames_floor( smpte );
1158
1159                 for (n = 0; n < smpte_nmarks; n++) {
1160                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1161                         if ((smpte.frames % smpte_mark_modulo) == 0)  {
1162                                 if (smpte.frames == 0) {
1163                                   (*marks)[n].style = GtkCustomRulerMarkMajor;
1164                                 } else {
1165                                   (*marks)[n].style = GtkCustomRulerMarkMinor;
1166                                 }
1167                                 (*marks)[n].position = pos;
1168                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1169                         } else {
1170                                 snprintf (buf, sizeof(buf)," ");
1171                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1172                                 (*marks)[n].position = pos;
1173
1174                         }
1175                         (*marks)[n].label = g_strdup (buf);
1176                         SMPTE::increment( smpte );
1177                 }
1178
1179           break;
1180         }
1181
1182         return smpte_nmarks;
1183 }
1184
1185
1186 void
1187 Editor::compute_bbt_ruler_scale (nframes64_t lower, nframes64_t upper)
1188 {
1189         if (session == 0) {
1190                 return;
1191         }
1192         TempoMap::BBTPointList::iterator i;
1193         BBT_Time lower_beat, upper_beat; // the beats at each end of the ruler
1194
1195         session->bbt_time((jack_nframes_t) lower, lower_beat);
1196         session->bbt_time((jack_nframes_t) upper, upper_beat);
1197         uint32_t beats = 0;
1198
1199         bbt_accent_modulo = 1;
1200         bbt_bar_helper_on = false;
1201         bbt_bars = 0;
1202         bbt_nmarks = 1;
1203
1204         bbt_ruler_scale =  bbt_over;
1205
1206         switch (snap_type) {
1207         case SnapToAThirdBeat:
1208                 bbt_beat_subdivision = 3;
1209                 break;
1210         case SnapToAQuarterBeat:
1211                 bbt_beat_subdivision = 4;
1212                 break;
1213         case SnapToAEighthBeat:
1214                 bbt_beat_subdivision = 8;
1215                 bbt_accent_modulo = 2;
1216                 break;
1217         case SnapToASixteenthBeat:
1218                 bbt_beat_subdivision = 16;
1219                 bbt_accent_modulo = 4;
1220                 break;
1221         case SnapToAThirtysecondBeat:
1222                 bbt_beat_subdivision = 32;
1223                 bbt_accent_modulo = 8;
1224                 break;
1225         default:
1226                 bbt_beat_subdivision = 4;
1227                 break;
1228         }
1229
1230         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1231                 return;
1232         }
1233
1234         i = current_bbt_points->end();
1235         i--;
1236         if ((*i).beat >= (*current_bbt_points->begin()).beat) {
1237           bbt_bars = (*i).bar - (*current_bbt_points->begin()).bar;
1238         } else {
1239           bbt_bars = (*i).bar - (*current_bbt_points->begin()).bar - 1;
1240         }
1241         beats = current_bbt_points->size() - bbt_bars;
1242
1243         /*Only show the bar helper if there aren't many bars on the screen */
1244         if ((bbt_bars < 2) || (beats < 5)) {
1245                 bbt_bar_helper_on = true;
1246         }
1247
1248         if (bbt_bars > 8192) {
1249           bbt_ruler_scale =  bbt_over;
1250         } else if (bbt_bars > 1024) {
1251           bbt_ruler_scale = bbt_show_64;
1252         } else if (bbt_bars > 256) {
1253           bbt_ruler_scale = bbt_show_16;
1254         } else if (bbt_bars > 64) {
1255           bbt_ruler_scale = bbt_show_4;
1256         } else if (bbt_bars > 10) {
1257           bbt_ruler_scale =  bbt_show_1;
1258         } else if (bbt_bars > 2) {
1259           bbt_ruler_scale =  bbt_show_beats;
1260         } else  if (bbt_bars > 0) {
1261           bbt_ruler_scale =  bbt_show_ticks;
1262         } else {
1263           bbt_ruler_scale =  bbt_show_ticks_detail;
1264         }
1265
1266         if ((bbt_ruler_scale == bbt_show_ticks_detail) && (lower_beat.beats == upper_beat.beats) && (upper_beat.ticks - lower_beat.ticks <= Meter::ticks_per_beat / 4)) {
1267                 bbt_ruler_scale =  bbt_show_ticks_super_detail;
1268         }
1269 }
1270
1271 gint
1272 Editor::metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1273 {
1274         if (session == 0) {
1275                 return 0;
1276         }
1277
1278         TempoMap::BBTPointList::iterator i;
1279
1280         char buf[64];
1281         gint  n = 0;
1282         nframes64_t pos;
1283         BBT_Time next_beat;
1284         nframes64_t next_beat_pos;
1285         uint32_t beats = 0;
1286
1287         uint32_t tick = 0;
1288         uint32_t skip;
1289         uint32_t t;
1290         nframes64_t frame_skip;
1291         double frame_skip_error;
1292         double bbt_position_of_helper;
1293         double accumulated_error;
1294         bool i_am_accented = false;
1295         bool helper_active = false;
1296
1297         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1298                 return 0;
1299         }
1300
1301         switch (bbt_ruler_scale) {
1302
1303         case bbt_show_beats:
1304                 beats = current_bbt_points->size();
1305                 bbt_nmarks = beats + 2;
1306
1307                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1308
1309                 (*marks)[0].label = g_strdup(" ");
1310                 (*marks)[0].position = lower;
1311                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1312
1313                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1314                         if  ((*i).type != TempoMap::Beat) {
1315                                 continue;
1316                         }
1317                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1318                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1319                                 (*marks)[0].label = g_strdup (buf);
1320                                 helper_active = true;
1321                         } else {
1322
1323                                 if ((*i).beat == 1) {
1324                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1325                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1326                                 } else if (((*i).beat % 2 == 1)) {
1327                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1328                                         snprintf (buf, sizeof(buf), " ");
1329                                 } else {
1330                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1331                                         snprintf (buf, sizeof(buf), " ");
1332                                 }
1333                                 (*marks)[n].label =  g_strdup (buf);
1334                                 (*marks)[n].position = (*i).frame;
1335                                 n++;
1336                         }
1337                 }
1338                 break;
1339
1340         case bbt_show_ticks:
1341
1342                 beats = current_bbt_points->size();
1343                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1344
1345                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1346                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1347
1348                 (*marks)[0].label = g_strdup(" ");
1349                 (*marks)[0].position = lower;
1350                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1351
1352                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1353                         if  ((*i).type != TempoMap::Beat) {
1354                                 continue;
1355                         }
1356                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1357                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1358                                 (*marks)[0].label = g_strdup (buf);
1359                                 helper_active = true;
1360                         } else {
1361
1362                                 if ((*i).beat == 1) {
1363                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1364                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1365                                 } else {
1366                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1367                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1368                                 }
1369                                 if (((*i).frame < bbt_position_of_helper) && helper_active) {
1370                                         snprintf (buf, sizeof(buf), " ");
1371                                 }
1372                                 (*marks)[n].label =  g_strdup (buf);
1373                                 (*marks)[n].position = (*i).frame;
1374                                 n++;
1375                         }
1376
1377                         /* Add the tick marks */
1378
1379                         /* Find the next beat */
1380                         next_beat.beats = (*i).beat;
1381                         next_beat.bars = (*i).bar;
1382                         next_beat.ticks = 0;
1383
1384                         if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1385                                   next_beat.beats += 1;
1386                         } else {
1387                                   next_beat.bars += 1;
1388                                   next_beat.beats = 1;
1389                         }
1390
1391                         next_beat_pos = session->tempo_map().frame_time(next_beat);
1392
1393                         frame_skip = (nframes64_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1394                         frame_skip_error -= frame_skip;
1395                         skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1396
1397                         pos = (*i).frame + frame_skip;
1398                         accumulated_error = frame_skip_error;
1399
1400                         tick = skip;
1401
1402                         for (t = 0; (tick < Meter::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1403
1404                                 if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1405                                         i_am_accented = true;
1406                                 }
1407
1408                                 snprintf (buf, sizeof(buf), " ");
1409                                 (*marks)[n].label = g_strdup (buf);
1410
1411                                 /* Error compensation for float to nframes64_t*/
1412                                 accumulated_error += frame_skip_error;
1413                                 if (accumulated_error > 1) {
1414                                         pos += 1;
1415                                         accumulated_error -= 1.0f;
1416                                 }
1417
1418                                 (*marks)[n].position = pos;
1419
1420                                 if ((bbt_beat_subdivision > 4) && i_am_accented) {
1421                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1422                                 } else {
1423                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1424                                 }
1425                                 i_am_accented = false;
1426                                 n++;
1427                         }
1428                 }
1429
1430           break;
1431
1432         case bbt_show_ticks_detail:
1433
1434                 beats = current_bbt_points->size();
1435                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1436
1437                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1438                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1439
1440                 (*marks)[0].label = g_strdup(" ");
1441                 (*marks)[0].position = lower;
1442                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1443
1444                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1445                         if  ((*i).type != TempoMap::Beat) {
1446                                 continue;
1447                         }
1448                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1449                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1450                                 (*marks)[0].label = g_strdup (buf);
1451                                 helper_active = true;
1452                         } else {
1453
1454                                 if ((*i).beat == 1) {
1455                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1456                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1457                                 } else {
1458                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1459                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1460                                 }
1461                                 if (((*i).frame < bbt_position_of_helper) && helper_active) {
1462                                         snprintf (buf, sizeof(buf), " ");
1463                                 }
1464                                 (*marks)[n].label =  g_strdup (buf);
1465                                 (*marks)[n].position = (*i).frame;
1466                                 n++;
1467                         }
1468
1469                         /* Add the tick marks */
1470
1471                         /* Find the next beat */
1472
1473                         next_beat.beats = (*i).beat;
1474                         next_beat.bars = (*i).bar;
1475
1476                         if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1477                                   next_beat.beats += 1;
1478                         } else {
1479                                   next_beat.bars += 1;
1480                                   next_beat.beats = 1;
1481                         }
1482
1483                         next_beat_pos = session->tempo_map().frame_time(next_beat);
1484
1485                         frame_skip = (nframes64_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1486                         frame_skip_error -= frame_skip;
1487                         skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1488
1489                         pos = (*i).frame + frame_skip;
1490                         accumulated_error = frame_skip_error;
1491
1492                         tick = skip;
1493
1494                         for (t = 0; (tick < Meter::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1495
1496                                 if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1497                                         i_am_accented = true;
1498                                 }
1499
1500                                 if (i_am_accented && (pos > bbt_position_of_helper)){
1501                                         snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1502                                 } else {
1503                                         snprintf (buf, sizeof(buf), " ");
1504                                 }
1505
1506                                 (*marks)[n].label = g_strdup (buf);
1507
1508                                 /* Error compensation for float to nframes64_t*/
1509                                 accumulated_error += frame_skip_error;
1510                                 if (accumulated_error > 1) {
1511                                         pos += 1;
1512                                         accumulated_error -= 1.0f;
1513                                 }
1514
1515                                 (*marks)[n].position = pos;
1516
1517                                 if ((bbt_beat_subdivision > 4) && i_am_accented) {
1518                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1519                                 } else {
1520                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1521                                 }
1522                                 i_am_accented = false;
1523                                 n++;
1524                         }
1525                 }
1526
1527           break;
1528
1529         case bbt_show_ticks_super_detail:
1530
1531                 beats = current_bbt_points->size();
1532                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1533
1534                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1535                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1536
1537                 (*marks)[0].label = g_strdup(" ");
1538                 (*marks)[0].position = lower;
1539                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1540
1541                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1542                         if  ((*i).type != TempoMap::Beat) {
1543                                   continue;
1544                         }
1545                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1546                                   snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1547                                   (*marks)[0].label = g_strdup (buf);
1548                                   helper_active = true;
1549                         } else {
1550
1551                                   if ((*i).beat == 1) {
1552                                           (*marks)[n].style = GtkCustomRulerMarkMajor;
1553                                           snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1554                                   } else {
1555                                           (*marks)[n].style = GtkCustomRulerMarkMinor;
1556                                           snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1557                                   }
1558                                   if (((*i).frame < bbt_position_of_helper) && helper_active) {
1559                                           snprintf (buf, sizeof(buf), " ");
1560                                   }
1561                                   (*marks)[n].label =  g_strdup (buf);
1562                                   (*marks)[n].position = (*i).frame;
1563                                   n++;
1564                         }
1565
1566                         /* Add the tick marks */
1567
1568                         /* Find the next beat */
1569
1570                         next_beat.beats = (*i).beat;
1571                         next_beat.bars = (*i).bar;
1572
1573                         if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1574                                   next_beat.beats += 1;
1575                         } else {
1576                                   next_beat.bars += 1;
1577                                   next_beat.beats = 1;
1578                         }
1579
1580                         next_beat_pos = session->tempo_map().frame_time(next_beat);
1581
1582                         frame_skip = (nframes64_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1583                         frame_skip_error -= frame_skip;
1584                         skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1585
1586                         pos = (*i).frame + frame_skip;
1587                         accumulated_error = frame_skip_error;
1588
1589                         tick = skip;
1590
1591                         for (t = 0; (tick < Meter::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1592
1593                                   if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1594                                           i_am_accented = true;
1595                                   }
1596
1597                                   if (pos > bbt_position_of_helper) {
1598                                           snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1599                                   } else {
1600                                           snprintf (buf, sizeof(buf), " ");
1601                                   }
1602
1603                                   (*marks)[n].label = g_strdup (buf);
1604
1605                                   /* Error compensation for float to nframes64_t*/
1606                                   accumulated_error += frame_skip_error;
1607                                   if (accumulated_error > 1) {
1608                                           pos += 1;
1609                                           accumulated_error -= 1.0f;
1610                                   }
1611
1612                                   (*marks)[n].position = pos;
1613
1614                                   if ((bbt_beat_subdivision > 4) && i_am_accented) {
1615                                           (*marks)[n].style = GtkCustomRulerMarkMinor;
1616                                   } else {
1617                                           (*marks)[n].style = GtkCustomRulerMarkMicro;
1618                                   }
1619                                   i_am_accented = false;
1620                                   n++;
1621                         }
1622                 }
1623
1624           break;
1625
1626         case bbt_over:
1627                         bbt_nmarks = 1;
1628                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1629                         snprintf (buf, sizeof(buf), "cannot handle %" PRIu32 " bars", bbt_bars );
1630                         (*marks)[0].style = GtkCustomRulerMarkMajor;
1631                         (*marks)[0].label = g_strdup (buf);
1632                         (*marks)[0].position = lower;
1633                         n = 1;
1634
1635           break;
1636
1637         case bbt_show_64:
1638                         bbt_nmarks = (gint) (bbt_bars / 64) + 1;
1639                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1640                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; i++) {
1641                                 if ((*i).type == TempoMap::Bar)  {
1642                                         if ((*i).bar % 64 == 1) {
1643                                                 if ((*i).bar % 256 == 1) {
1644                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1645                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1646                                                 } else {
1647                                                         snprintf (buf, sizeof(buf), " ");
1648                                                         if ((*i).bar % 256 == 129)  {
1649                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1650                                                         } else {
1651                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1652                                                         }
1653                                                 }
1654                                                 (*marks)[n].label = g_strdup (buf);
1655                                                 (*marks)[n].position = (*i).frame;
1656                                                 n++;
1657                                         }
1658                                 }
1659                         }
1660                         break;
1661
1662         case bbt_show_16:
1663                 bbt_nmarks = (bbt_bars / 16) + 1;
1664                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1665                 for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; i++) {
1666                         if ((*i).type == TempoMap::Bar)  {
1667                           if ((*i).bar % 16 == 1) {
1668                                 if ((*i).bar % 64 == 1) {
1669                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1670                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1671                                 } else {
1672                                         snprintf (buf, sizeof(buf), " ");
1673                                         if ((*i).bar % 64 == 33)  {
1674                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1675                                         } else {
1676                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1677                                         }
1678                                 }
1679                                 (*marks)[n].label = g_strdup (buf);
1680                                 (*marks)[n].position = (*i).frame;
1681                                 n++;
1682                           }
1683                         }
1684                 }
1685           break;
1686
1687         case bbt_show_4:
1688                 bbt_nmarks = (bbt_bars / 4) + 1;
1689                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1690                 for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; ++i) {
1691                         if ((*i).type == TempoMap::Bar)  {
1692                           if ((*i).bar % 4 == 1) {
1693                                 if ((*i).bar % 16 == 1) {
1694                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1695                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1696                                 } else {
1697                                         snprintf (buf, sizeof(buf), " ");
1698                                         if ((*i).bar % 16 == 9)  {
1699                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1700                                         } else {
1701                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1702                                         }
1703                                 }
1704                                 (*marks)[n].label = g_strdup (buf);
1705                                 (*marks)[n].position = (*i).frame;
1706                                 n++;
1707                           }
1708                         }
1709                 }
1710           break;
1711
1712         case bbt_show_1:
1713   //    default:
1714                 bbt_nmarks = bbt_bars + 2;
1715                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks );
1716                 for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; i++) {
1717                         if ((*i).type == TempoMap::Bar)  {
1718                           if ((*i).bar % 4 == 1) {
1719                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1720                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1721                           } else {
1722                                 snprintf (buf, sizeof(buf), " ");
1723                                 if ((*i).bar % 4 == 3)  {
1724                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1725                                 } else {
1726                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1727                                 }
1728                           }
1729                         (*marks)[n].label = g_strdup (buf);
1730                         (*marks)[n].position = (*i).frame;
1731                         n++;
1732                         }
1733                 }
1734
1735         break;
1736
1737         }
1738
1739         return n; //return the actual number of marks made, since we might have skipped some from fractional time signatures
1740
1741 }
1742
1743 gint
1744 Editor::metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1745 {
1746         nframes64_t mark_interval;
1747         nframes64_t pos;
1748         nframes64_t ilower = (nframes64_t) floor (lower);
1749         nframes64_t iupper = (nframes64_t) floor (upper);
1750         gchar buf[16];
1751         gint nmarks;
1752         gint n;
1753
1754         if (session == 0) {
1755                 return 0;
1756         }
1757
1758         mark_interval = (iupper - ilower) / 5;
1759         if (mark_interval > session->frame_rate()) {
1760                 mark_interval -= mark_interval % session->frame_rate();
1761         } else {
1762                 mark_interval = session->frame_rate() / (session->frame_rate() / mark_interval ) ;
1763         }
1764         nmarks = 5;
1765         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1766         for (n = 0, pos = ilower; n < nmarks; pos += mark_interval, ++n) {
1767                 snprintf (buf, sizeof(buf), "%" PRIi64, pos);
1768                 (*marks)[n].label = g_strdup (buf);
1769                 (*marks)[n].position = pos;
1770                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1771         }
1772
1773         return nmarks;
1774 }
1775
1776 static void
1777 sample_to_clock_parts ( nframes64_t sample,
1778                         nframes64_t sample_rate,
1779                         long *hrs_p,
1780                         long *mins_p,
1781                         long *secs_p,
1782                         long *millisecs_p)
1783
1784 {
1785         nframes64_t left;
1786         long hrs;
1787         long mins;
1788         long secs;
1789         long millisecs;
1790
1791         left = sample;
1792         hrs = left / (sample_rate * 60 * 60);
1793         left -= hrs * sample_rate * 60 * 60;
1794         mins = left / (sample_rate * 60);
1795         left -= mins * sample_rate * 60;
1796         secs = left / sample_rate;
1797         left -= secs * sample_rate;
1798         millisecs = left * 1000 / sample_rate;
1799
1800         *millisecs_p = millisecs;
1801         *secs_p = secs;
1802         *mins_p = mins;
1803         *hrs_p = hrs;
1804
1805         return;
1806 }
1807
1808 void
1809 Editor::set_minsec_ruler_scale (gdouble lower, gdouble upper)
1810 {
1811         nframes64_t range;
1812         nframes64_t fr;
1813         nframes64_t spacer;
1814
1815         if (session == 0) {
1816                 return;
1817         }
1818
1819         fr = session->frame_rate();
1820
1821         /* to prevent 'flashing' */
1822         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
1823                 lower -= spacer;
1824         } else {
1825                 lower = 0;
1826         }
1827         upper += spacer;
1828         range = (nframes64_t) (upper - lower);
1829
1830         if (range <  (fr / 50)) {
1831                 minsec_mark_interval =  fr / 1000; /* show 1/1000 seconds */
1832                 minsec_ruler_scale = minsec_show_frames;
1833                 minsec_mark_modulo = 10;
1834         } else if (range <= (fr / 10)) { /* 0-0.1 second */
1835                 minsec_mark_interval = fr / 1000; /* show 1/1000 seconds */
1836                 minsec_ruler_scale = minsec_show_frames;
1837                 minsec_mark_modulo = 10;
1838         } else if (range <= (fr / 2)) { /* 0-0.5 second */
1839                 minsec_mark_interval = fr / 100;  /* show 1/100 seconds */
1840                 minsec_ruler_scale = minsec_show_frames;
1841                 minsec_mark_modulo = 100;
1842         } else if (range <= fr) { /* 0-1 second */
1843                 minsec_mark_interval = fr / 10;  /* show 1/10 seconds */
1844                 minsec_ruler_scale = minsec_show_frames;
1845                 minsec_mark_modulo = 200;
1846         } else if (range <= 2 * fr) { /* 1-2 seconds */
1847                 minsec_mark_interval = fr / 10; /* show 1/10 seconds */
1848                 minsec_ruler_scale = minsec_show_frames;
1849                 minsec_mark_modulo = 500;
1850         } else if (range <= 8 * fr) { /* 2-5 seconds */
1851                 minsec_mark_interval =  fr / 5; /* show 2 seconds */
1852                 minsec_ruler_scale = minsec_show_frames;
1853                 minsec_mark_modulo = 1000;
1854         } else if (range <= 16 * fr) { /* 8-16 seconds */
1855                 minsec_mark_interval =  fr; /* show 1 seconds */
1856                 minsec_ruler_scale = minsec_show_seconds;
1857                 minsec_mark_modulo = 2;
1858         } else if (range <= 30 * fr) { /* 10-30 seconds */
1859                 minsec_mark_interval =  fr; /* show 1 seconds */
1860                 minsec_ruler_scale = minsec_show_seconds;
1861                 minsec_mark_modulo = 5;
1862         } else if (range <= 60 * fr) { /* 30-60 seconds */
1863                 minsec_mark_interval = fr; /* show 1 seconds */
1864                 minsec_ruler_scale = minsec_show_seconds;
1865                 minsec_mark_modulo = 5;
1866         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1867                 minsec_mark_interval = 5 * fr; /* show 5 seconds */
1868                 minsec_ruler_scale = minsec_show_seconds;
1869                 minsec_mark_modulo = 3;
1870         } else if (range <= 4 * 60 * fr) { /* 4 minutes */
1871                 minsec_mark_interval = 5 * fr; /* show 10 seconds */
1872                 minsec_ruler_scale = minsec_show_seconds;
1873                 minsec_mark_modulo = 30;
1874         } else if (range <= 10 * 60 * fr) { /* 10 minutes */
1875                 minsec_mark_interval = 30 * fr; /* show 30 seconds */
1876                 minsec_ruler_scale = minsec_show_seconds;
1877                 minsec_mark_modulo = 120;
1878         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1879                 minsec_mark_interval =  60 * fr; /* show 1 minute */
1880                 minsec_ruler_scale = minsec_show_minutes;
1881                 minsec_mark_modulo = 5;
1882         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1883                 minsec_mark_interval = 2 * 60 * fr; /* show 2 minutes */
1884                 minsec_ruler_scale = minsec_show_minutes;
1885                 minsec_mark_modulo = 10;
1886         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1887                 minsec_mark_interval = 5 * 60 * fr; /* show 10 minutes */
1888                 minsec_ruler_scale = minsec_show_minutes;
1889                 minsec_mark_modulo = 30;
1890         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1891                 minsec_mark_interval = 20 * 60 * fr; /* show 20 minutes */
1892                 minsec_ruler_scale = minsec_show_minutes;
1893                 minsec_mark_modulo = 60;
1894         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1895                 minsec_mark_interval =  60 * 60 * fr; /* show 60 minutes */
1896                 minsec_ruler_scale = minsec_show_hours;
1897                 minsec_mark_modulo = 2;
1898         } else {
1899
1900                 /* not possible if nframes64_t is a 32 bit quantity */
1901
1902                 minsec_mark_interval = 4 * 60 * 60 * fr; /* show 4 hrs */
1903         }
1904         minsec_nmarks = 2 + (range / minsec_mark_interval);
1905 }
1906
1907 gint
1908 Editor::metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1909 {
1910         nframes64_t pos;
1911         nframes64_t spacer;
1912         long hrs, mins, secs, millisecs;
1913         gchar buf[16];
1914         gint n;
1915
1916         if (session == 0) {
1917                 return 0;
1918         }
1919
1920         /* to prevent 'flashing' */
1921         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
1922                 lower = lower - spacer;
1923         } else {
1924                 lower = 0;
1925         }
1926
1927         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * minsec_nmarks);
1928         pos = ((((nframes64_t) floor(lower)) + (minsec_mark_interval/2))/minsec_mark_interval) * minsec_mark_interval;
1929         switch (minsec_ruler_scale) {
1930         case minsec_show_seconds:
1931                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1932                         sample_to_clock_parts (pos, session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1933                         if (secs % minsec_mark_modulo == 0) {
1934                                 if (secs == 0) {
1935                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1936                                 } else {
1937                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1938                                 }
1939                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1940                         } else {
1941                                 snprintf (buf, sizeof(buf), " ");
1942                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1943                         }
1944                         (*marks)[n].label = g_strdup (buf);
1945                         (*marks)[n].position = pos;
1946                 }
1947           break;
1948         case minsec_show_minutes:
1949                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1950                         sample_to_clock_parts (pos, session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1951                         if (mins % minsec_mark_modulo == 0) {
1952                                 if (mins == 0) {
1953                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1954                                 } else {
1955                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1956                                 }
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_hours:
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 (hrs % minsec_mark_modulo == 0) {
1970                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1971                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1972                         } else {
1973                                 snprintf (buf, sizeof(buf), " ");
1974                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1975                         }
1976                         (*marks)[n].label = g_strdup (buf);
1977                         (*marks)[n].position = pos;
1978                 }
1979               break;
1980         case minsec_show_frames:
1981                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1982                         sample_to_clock_parts (pos, session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1983                         if (millisecs % minsec_mark_modulo == 0) {
1984                                 if (secs == 0) {
1985                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1986                                 } else {
1987                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1988                                 }
1989                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1990                         } else {
1991                                 snprintf (buf, sizeof(buf), " ");
1992                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1993                         }
1994                         (*marks)[n].label = g_strdup (buf);
1995                         (*marks)[n].position = pos;
1996                 }
1997           break;
1998         }
1999
2000         return minsec_nmarks;
2001 }