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;
 789         gdouble vertical_pos_delta = canvas_timebars_vsize - old_canvas_timebars_vsize;
 790
 791         if (vertical_pos_delta < 0 && (vertical_adjustment.get_value() + canvas_height) >= vertical_adjustment.get_upper()) {
 792                 /*if we're at the bottom of the canvas, don't move the _trackview_grooup*/
 793                 vertical_adjustment.set_upper(vertical_adjustment.get_upper() + vertical_pos_delta);
 794         } else {
 795                 vertical_adjustment.set_upper(vertical_adjustment.get_upper() + vertical_pos_delta);
 796                 _trackview_group->move (0, vertical_pos_delta);
 797         }
 798         ruler_label_vbox.set_size_request (-1, (int)(timebar_height * visible_rulers));
 799
 800         time_canvas_vbox.set_size_request (-1,-1);
 801         time_canvas_event_box.queue_resize();
 802         compute_fixed_ruler_scale();
 803         update_fixed_rulers();
 804 //      redisplay_tempo (false);
 805
 806         time_canvas_event_box.show_all();
 807         ruler_label_event_box.show_all();
 808         time_button_event_box.show_all();
 809
 810         compute_current_bbt_points (leftmost_frame, leftmost_frame + (nframes64_t)(edit_packer.get_width() * frames_per_unit));
 811         compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + (nframes64_t)(edit_packer.get_width() * frames_per_unit));
 812
 813         redisplay_tempo (false);
 814 }
 815
 816 void
 817 Editor::update_just_smpte ()
 818 {
 819         ENSURE_GUI_THREAD(mem_fun(*this, &Editor::update_just_smpte));
 820
 821         if (session == 0) {
 822                 return;
 823         }
 824
 825         nframes64_t rightmost_frame = leftmost_frame + current_page_frames();
 826
 827         if (ruler_timecode_action->get_active()) {
 828                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 829                                             leftmost_frame, session->current_end_frame());
 830         }
 831 }
 832
 833 void
 834 Editor::compute_fixed_ruler_scale ()
 835 {
 836         if (session == 0) {
 837                 return;
 838         }
 839
 840         if (ruler_timecode_action->get_active()) {
 841                 set_smpte_ruler_scale (leftmost_frame, leftmost_frame + (edit_packer.get_width() * frames_per_unit) );
 842         }
 843
 844         if (ruler_minsec_action->get_active()) {
 845                 set_minsec_ruler_scale (leftmost_frame, leftmost_frame + (edit_packer.get_width() * frames_per_unit) );
 846         }
 847 }
 848
 849 void
 850 Editor::update_fixed_rulers ()
 851 {
 852         nframes64_t rightmost_frame;
 853
 854         if (session == 0) {
 855                 return;
 856         }
 857
 858         ruler_metrics[ruler_metric_smpte].units_per_pixel = frames_per_unit;
 859         ruler_metrics[ruler_metric_frames].units_per_pixel = frames_per_unit;
 860         ruler_metrics[ruler_metric_minsec].units_per_pixel = frames_per_unit;
 861
 862         rightmost_frame = leftmost_frame + current_page_frames ();
 863
 864         /* these force a redraw, which in turn will force execution of the metric callbacks
 865            to compute the relevant ticks to display.
 866         */
 867
 868         if (ruler_timecode_action->get_active()) {
 869                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 870                                             leftmost_frame, session->current_end_frame());
 871         }
 872
 873         if (ruler_samples_action->get_active()) {
 874                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_frames_ruler), leftmost_frame, rightmost_frame,
 875                                             leftmost_frame, session->current_end_frame());
 876         }
 877
 878         if (ruler_minsec_action->get_active()) {
 879                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_minsec_ruler), leftmost_frame, rightmost_frame,
 880                                             leftmost_frame, session->current_end_frame());
 881         }
 882 }
 883
 884 void
 885 Editor::update_tempo_based_rulers ()
 886 {
 887         if (session == 0) {
 888                 return;
 889         }
 890
 891         ruler_metrics[ruler_metric_bbt].units_per_pixel = frames_per_unit;
 892
 893         if (ruler_bbt_action->get_active()) {
 894                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_bbt_ruler), leftmost_frame, leftmost_frame+current_page_frames(),
 895                                             leftmost_frame, session->current_end_frame());
 896         }
 897 }
 898
 899 /* Mark generation */
 900
 901 gint
 902 Editor::_metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 903 {
 904         return ruler_editor->metric_get_smpte (marks, lower, upper, maxchars);
 905 }
 906
 907 gint
 908 Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 909 {
 910         return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 911 }
 912
 913 gint
 914 Editor::_metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 915 {
 916         return ruler_editor->metric_get_frames (marks, lower, upper, maxchars);
 917 }
 918
 919 gint
 920 Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 921 {
 922         return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 923 }
 924
 925 void
 926 Editor::set_smpte_ruler_scale (gdouble lower, gdouble upper)
 927 {
 928         nframes64_t range;
 929         nframes64_t spacer;
 930         nframes64_t fr;
 931
 932         if (session == 0) {
 933                 return;
 934         }
 935
 936         fr = session->frame_rate();
 937
 938         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
 939                 lower = lower - spacer;
 940         } else {
 941                 lower = 0;
 942         }
 943         upper = upper + spacer;
 944         range = (nframes64_t) floor (upper - lower);
 945
 946         if (range < (2 * session->frames_per_smpte_frame())) { /* 0 - 2 frames */
 947                 smpte_ruler_scale = smpte_show_bits;
 948                 smpte_mark_modulo = 20;
 949                 smpte_nmarks = 2 + (2 * Config->get_subframes_per_frame());
 950         } else if (range <= (fr / 4)) { /* 2 frames - 0.250 second */
 951                 smpte_ruler_scale = smpte_show_frames;
 952                 smpte_mark_modulo = 1;
 953                 smpte_nmarks = 2 + (range / (nframes64_t)session->frames_per_smpte_frame());
 954         } else if (range <= (fr / 2)) { /* 0.25-0.5 second */
 955                 smpte_ruler_scale = smpte_show_frames;
 956                 smpte_mark_modulo = 2;
 957                 smpte_nmarks = 2 + (range / (nframes64_t)session->frames_per_smpte_frame());
 958         } else if (range <= fr) { /* 0.5-1 second */
 959                 smpte_ruler_scale = smpte_show_frames;
 960                 smpte_mark_modulo = 5;
 961                 smpte_nmarks = 2 + (range / (nframes64_t)session->frames_per_smpte_frame());
 962         } else if (range <= 2 * fr) { /* 1-2 seconds */
 963                 smpte_ruler_scale = smpte_show_frames;
 964                 smpte_mark_modulo = 10;
 965                 smpte_nmarks = 2 + (range / (nframes64_t)session->frames_per_smpte_frame());
 966         } else if (range <= 8 * fr) { /* 2-8 seconds */
 967                 smpte_ruler_scale = smpte_show_seconds;
 968                 smpte_mark_modulo = 1;
 969                 smpte_nmarks = 2 + (range / fr);
 970         } else if (range <= 16 * fr) { /* 8-16 seconds */
 971                 smpte_ruler_scale = smpte_show_seconds;
 972                 smpte_mark_modulo = 2;
 973                 smpte_nmarks = 2 + (range / fr);
 974         } else if (range <= 30 * fr) { /* 16-30 seconds */
 975                 smpte_ruler_scale = smpte_show_seconds;
 976                 smpte_mark_modulo = 5;
 977                 smpte_nmarks = 2 + (range / fr);
 978         } else if (range <= 60 * fr) { /* 30-60 seconds */
 979                 smpte_ruler_scale = smpte_show_seconds;
 980                 smpte_mark_modulo = 5;
 981                 smpte_nmarks = 2 + (range / fr);
 982         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
 983                 smpte_ruler_scale = smpte_show_seconds;
 984                 smpte_mark_modulo = 15;
 985                 smpte_nmarks = 2 + (range / fr);
 986         } else if (range <= 4 * 60 * fr) { /* 2-4 minutes */
 987                 smpte_ruler_scale = smpte_show_seconds;
 988                 smpte_mark_modulo = 30;
 989                 smpte_nmarks = 2 + (range / fr);
 990         } else if (range <= 10 * 60 * fr) { /* 4-10 minutes */
 991                 smpte_ruler_scale = smpte_show_minutes;
 992                 smpte_mark_modulo = 2;
 993                 smpte_nmarks = 2 + 10;
 994         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
 995                 smpte_ruler_scale = smpte_show_minutes;
 996                 smpte_mark_modulo = 5;
 997                 smpte_nmarks = 2 + 30;
 998         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
 999                 smpte_ruler_scale = smpte_show_minutes;
1000                 smpte_mark_modulo = 10;
1001                 smpte_nmarks = 2 + 60;
1002         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1003                 smpte_ruler_scale = smpte_show_minutes;
1004                 smpte_mark_modulo = 30;
1005                 smpte_nmarks = 2 + (60 * 4);
1006         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1007                 smpte_ruler_scale = smpte_show_hours;
1008                 smpte_mark_modulo = 1;
1009                 smpte_nmarks = 2 + 8;
1010         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1011                 smpte_ruler_scale = smpte_show_hours;
1012                 smpte_mark_modulo = 1;
1013                 smpte_nmarks = 2 + 24;
1014         } else {
1015
1016                 /* not possible if nframes64_t is a 32 bit quantity */
1017
1018                 smpte_ruler_scale = smpte_show_hours;
1019                 smpte_mark_modulo = 4;
1020                 smpte_nmarks = 2 + 24;
1021         }
1022
1023 }
1024
1025 gint
1026 Editor::metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1027 {
1028         nframes_t pos;
1029         nframes64_t spacer;
1030         SMPTE::Time smpte;
1031         gchar buf[16];
1032         gint n;
1033
1034         if (session == 0) {
1035                 return 0;
1036         }
1037
1038         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
1039                 lower = lower - spacer;
1040         } else {
1041                 lower = 0;
1042         }
1043
1044         pos = (nframes_t) floor (lower);
1045
1046         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * smpte_nmarks);
1047         switch (smpte_ruler_scale) {
1048         case smpte_show_bits:
1049
1050                 // Find smpte time of this sample (pos) with subframe accuracy
1051                 session->sample_to_smpte(pos, smpte, true /* use_offset */, true /* use_subframes */ );
1052
1053                 for (n = 0; n < smpte_nmarks; n++) {
1054                         session->smpte_to_sample(smpte, pos, true /* use_offset */, true /* use_subframes */ );
1055                         if ((smpte.subframes % smpte_mark_modulo) == 0) {
1056                                 if (smpte.subframes == 0) {
1057                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1058                                         snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1059                                 } else {
1060                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1061                                         snprintf (buf, sizeof(buf), ".%02u", smpte.subframes);
1062                                 }
1063                         } else {
1064                                 snprintf (buf, sizeof(buf)," ");
1065                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1066
1067                         }
1068                         (*marks)[n].label = g_strdup (buf);
1069                         (*marks)[n].position = pos;
1070
1071                         // Increment subframes by one
1072                         SMPTE::increment_subframes( smpte );
1073                 }
1074           break;
1075         case smpte_show_seconds:
1076                 // Find smpte time of this sample (pos)
1077                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1078                 // Go to next whole second down
1079                 SMPTE::seconds_floor( smpte );
1080
1081                 for (n = 0; n < smpte_nmarks; n++) {
1082                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1083                         if ((smpte.seconds % smpte_mark_modulo) == 0) {
1084                                 if (smpte.seconds == 0) {
1085                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1086                                         (*marks)[n].position = pos;
1087                                 } else {
1088                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1089                                         (*marks)[n].position = pos;
1090                                 }
1091                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1092                         } else {
1093                                 snprintf (buf, sizeof(buf)," ");
1094                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1095                                 (*marks)[n].position = pos;
1096
1097                         }
1098                         (*marks)[n].label = g_strdup (buf);
1099                         SMPTE::increment_seconds( smpte );
1100                 }
1101           break;
1102         case smpte_show_minutes:
1103                 // Find smpte time of this sample (pos)
1104                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1105                 // Go to next whole minute down
1106                 SMPTE::minutes_floor( smpte );
1107
1108                 for (n = 0; n < smpte_nmarks; n++) {
1109                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1110                         if ((smpte.minutes % smpte_mark_modulo) == 0) {
1111                                 if (smpte.minutes == 0) {
1112                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1113                                 } else {
1114                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1115                                 }
1116                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1117                         } else {
1118                                 snprintf (buf, sizeof(buf)," ");
1119                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1120
1121                         }
1122                         (*marks)[n].label = g_strdup (buf);
1123                         (*marks)[n].position = pos;
1124                         SMPTE::increment_minutes( smpte );
1125                 }
1126
1127           break;
1128         case smpte_show_hours:
1129                 // Find smpte time of this sample (pos)
1130                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1131                 // Go to next whole hour down
1132                 SMPTE::hours_floor( smpte );
1133
1134                 for (n = 0; n < smpte_nmarks; n++) {
1135                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1136                         if ((smpte.hours % smpte_mark_modulo) == 0) {
1137                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1138                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1139                         } else {
1140                                 snprintf (buf, sizeof(buf)," ");
1141                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1142
1143                         }
1144                         (*marks)[n].label = g_strdup (buf);
1145                         (*marks)[n].position = pos;
1146
1147                         SMPTE::increment_hours( smpte );
1148                 }
1149           break;
1150         case smpte_show_frames:
1151                 // Find smpte time of this sample (pos)
1152                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1153                 // Go to next whole frame down
1154                 SMPTE::frames_floor( smpte );
1155
1156                 for (n = 0; n < smpte_nmarks; n++) {
1157                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1158                         if ((smpte.frames % smpte_mark_modulo) == 0)  {
1159                                 if (smpte.frames == 0) {
1160                                   (*marks)[n].style = GtkCustomRulerMarkMajor;
1161                                 } else {
1162                                   (*marks)[n].style = GtkCustomRulerMarkMinor;
1163                                 }
1164                                 (*marks)[n].position = pos;
1165                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1166                         } else {
1167                                 snprintf (buf, sizeof(buf)," ");
1168                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1169                                 (*marks)[n].position = pos;
1170
1171                         }
1172                         (*marks)[n].label = g_strdup (buf);
1173                         SMPTE::increment( smpte );
1174                 }
1175
1176           break;
1177         }
1178
1179         return smpte_nmarks;
1180 }
1181
1182
1183 void
1184 Editor::compute_bbt_ruler_scale (nframes64_t lower, nframes64_t upper)
1185 {
1186         if (session == 0) {
1187                 return;
1188         }
1189         TempoMap::BBTPointList::iterator i;
1190         BBT_Time lower_beat, upper_beat; // the beats at each end of the ruler
1191
1192         session->bbt_time((jack_nframes_t) lower, lower_beat);
1193         session->bbt_time((jack_nframes_t) upper, upper_beat);
1194         uint32_t beats = 0;
1195
1196         bbt_accent_modulo = 1;
1197         bbt_bar_helper_on = false;
1198         bbt_bars = 0;
1199         bbt_nmarks = 1;
1200
1201         bbt_ruler_scale =  bbt_over;
1202
1203         switch (snap_type) {
1204         case SnapToAThirdBeat:
1205                 bbt_beat_subdivision = 3;
1206                 break;
1207         case SnapToAQuarterBeat:
1208                 bbt_beat_subdivision = 4;
1209                 break;
1210         case SnapToAEighthBeat:
1211                 bbt_beat_subdivision = 8;
1212                 bbt_accent_modulo = 2;
1213                 break;
1214         case SnapToASixteenthBeat:
1215                 bbt_beat_subdivision = 16;
1216                 bbt_accent_modulo = 4;
1217                 break;
1218         case SnapToAThirtysecondBeat:
1219                 bbt_beat_subdivision = 32;
1220                 bbt_accent_modulo = 8;
1221                 break;
1222         default:
1223                 bbt_beat_subdivision = 4;
1224                 break;
1225         }
1226
1227         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1228                 return;
1229         }
1230
1231         i = current_bbt_points->end();
1232         i--;
1233         if ((*i).beat >= (*current_bbt_points->begin()).beat) {
1234           bbt_bars = (*i).bar - (*current_bbt_points->begin()).bar;
1235         } else {
1236           bbt_bars = (*i).bar - (*current_bbt_points->begin()).bar - 1;
1237         }
1238         beats = current_bbt_points->size() - bbt_bars;
1239
1240         /*Only show the bar helper if there aren't many bars on the screen */
1241         if ((bbt_bars < 2) || (beats < 5)) {
1242                 bbt_bar_helper_on = true;
1243         }
1244
1245         if (bbt_bars > 8192) {
1246           bbt_ruler_scale =  bbt_over;
1247         } else if (bbt_bars > 1024) {
1248           bbt_ruler_scale = bbt_show_64;
1249         } else if (bbt_bars > 256) {
1250           bbt_ruler_scale = bbt_show_16;
1251         } else if (bbt_bars > 64) {
1252           bbt_ruler_scale = bbt_show_4;
1253         } else if (bbt_bars > 10) {
1254           bbt_ruler_scale =  bbt_show_1;
1255         } else if (bbt_bars > 2) {
1256           bbt_ruler_scale =  bbt_show_beats;
1257         } else  if (bbt_bars > 0) {
1258           bbt_ruler_scale =  bbt_show_ticks;
1259         } else {
1260           bbt_ruler_scale =  bbt_show_ticks_detail;
1261         }
1262
1263         if ((bbt_ruler_scale == bbt_show_ticks_detail) && (lower_beat.beats == upper_beat.beats) && (upper_beat.ticks - lower_beat.ticks <= Meter::ticks_per_beat / 4)) {
1264                 bbt_ruler_scale =  bbt_show_ticks_super_detail;
1265         }
1266 }
1267
1268 gint
1269 Editor::metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1270 {
1271         if (session == 0) {
1272                 return 0;
1273         }
1274
1275         TempoMap::BBTPointList::iterator i;
1276
1277         char buf[64];
1278         gint  n = 0;
1279         nframes64_t pos;
1280         BBT_Time next_beat;
1281         nframes64_t next_beat_pos;
1282         uint32_t beats = 0;
1283
1284         uint32_t tick = 0;
1285         uint32_t skip;
1286         uint32_t t;
1287         nframes64_t frame_skip;
1288         double frame_skip_error;
1289         double bbt_position_of_helper;
1290         double accumulated_error;
1291         bool i_am_accented = false;
1292         bool helper_active = false;
1293
1294         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1295                 return 0;
1296         }
1297
1298         switch (bbt_ruler_scale) {
1299
1300         case bbt_show_beats:
1301                 beats = current_bbt_points->size();
1302                 bbt_nmarks = beats + 2;
1303
1304                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1305
1306                 (*marks)[0].label = g_strdup(" ");
1307                 (*marks)[0].position = lower;
1308                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1309
1310                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1311                         if  ((*i).type != TempoMap::Beat) {
1312                                 continue;
1313                         }
1314                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1315                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1316                                 (*marks)[0].label = g_strdup (buf);
1317                                 helper_active = true;
1318                         } else {
1319
1320                                 if ((*i).beat == 1) {
1321                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1322                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1323                                 } else if (((*i).beat % 2 == 1)) {
1324                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1325                                         snprintf (buf, sizeof(buf), " ");
1326                                 } else {
1327                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1328                                         snprintf (buf, sizeof(buf), " ");
1329                                 }
1330                                 (*marks)[n].label =  g_strdup (buf);
1331                                 (*marks)[n].position = (*i).frame;
1332                                 n++;
1333                         }
1334                 }
1335                 break;
1336
1337         case bbt_show_ticks:
1338
1339                 beats = current_bbt_points->size();
1340                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1341
1342                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1343                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1344
1345                 (*marks)[0].label = g_strdup(" ");
1346                 (*marks)[0].position = lower;
1347                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1348
1349                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1350                         if  ((*i).type != TempoMap::Beat) {
1351                                 continue;
1352                         }
1353                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1354                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1355                                 (*marks)[0].label = g_strdup (buf);
1356                                 helper_active = true;
1357                         } else {
1358
1359                                 if ((*i).beat == 1) {
1360                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1361                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1362                                 } else {
1363                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1364                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1365                                 }
1366                                 if (((*i).frame < bbt_position_of_helper) && helper_active) {
1367                                         snprintf (buf, sizeof(buf), " ");
1368                                 }
1369                                 (*marks)[n].label =  g_strdup (buf);
1370                                 (*marks)[n].position = (*i).frame;
1371                                 n++;
1372                         }
1373
1374                         /* Add the tick marks */
1375
1376                         /* Find the next beat */
1377                         next_beat.beats = (*i).beat;
1378                         next_beat.bars = (*i).bar;
1379                         next_beat.ticks = 0;
1380
1381                         if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1382                                   next_beat.beats += 1;
1383                         } else {
1384                                   next_beat.bars += 1;
1385                                   next_beat.beats = 1;
1386                         }
1387
1388                         next_beat_pos = session->tempo_map().frame_time(next_beat);
1389
1390                         frame_skip = (nframes64_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1391                         frame_skip_error -= frame_skip;
1392                         skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1393
1394                         pos = (*i).frame + frame_skip;
1395                         accumulated_error = frame_skip_error;
1396
1397                         tick = skip;
1398
1399                         for (t = 0; (tick < Meter::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1400
1401                                 if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1402                                         i_am_accented = true;
1403                                 }
1404
1405                                 snprintf (buf, sizeof(buf), " ");
1406                                 (*marks)[n].label = g_strdup (buf);
1407
1408                                 /* Error compensation for float to nframes64_t*/
1409                                 accumulated_error += frame_skip_error;
1410                                 if (accumulated_error > 1) {
1411                                         pos += 1;
1412                                         accumulated_error -= 1.0f;
1413                                 }
1414
1415                                 (*marks)[n].position = pos;
1416
1417                                 if ((bbt_beat_subdivision > 4) && i_am_accented) {
1418                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1419                                 } else {
1420                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1421                                 }
1422                                 i_am_accented = false;
1423                                 n++;
1424                         }
1425                 }
1426
1427           break;
1428
1429         case bbt_show_ticks_detail:
1430
1431                 beats = current_bbt_points->size();
1432                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1433
1434                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1435                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1436
1437                 (*marks)[0].label = g_strdup(" ");
1438                 (*marks)[0].position = lower;
1439                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1440
1441                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1442                         if  ((*i).type != TempoMap::Beat) {
1443                                 continue;
1444                         }
1445                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1446                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1447                                 (*marks)[0].label = g_strdup (buf);
1448                                 helper_active = true;
1449                         } else {
1450
1451                                 if ((*i).beat == 1) {
1452                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1453                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1454                                 } else {
1455                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1456                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1457                                 }
1458                                 if (((*i).frame < bbt_position_of_helper) && helper_active) {
1459                                         snprintf (buf, sizeof(buf), " ");
1460                                 }
1461                                 (*marks)[n].label =  g_strdup (buf);
1462                                 (*marks)[n].position = (*i).frame;
1463                                 n++;
1464                         }
1465
1466                         /* Add the tick marks */
1467
1468                         /* Find the next beat */
1469
1470                         next_beat.beats = (*i).beat;
1471                         next_beat.bars = (*i).bar;
1472
1473                         if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1474                                   next_beat.beats += 1;
1475                         } else {
1476                                   next_beat.bars += 1;
1477                                   next_beat.beats = 1;
1478                         }
1479
1480                         next_beat_pos = session->tempo_map().frame_time(next_beat);
1481
1482                         frame_skip = (nframes64_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1483                         frame_skip_error -= frame_skip;
1484                         skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1485
1486                         pos = (*i).frame + frame_skip;
1487                         accumulated_error = frame_skip_error;
1488
1489                         tick = skip;
1490
1491                         for (t = 0; (tick < Meter::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1492
1493                                 if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1494                                         i_am_accented = true;
1495                                 }
1496
1497                                 if (i_am_accented && (pos > bbt_position_of_helper)){
1498                                         snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1499                                 } else {
1500                                         snprintf (buf, sizeof(buf), " ");
1501                                 }
1502
1503                                 (*marks)[n].label = g_strdup (buf);
1504
1505                                 /* Error compensation for float to nframes64_t*/
1506                                 accumulated_error += frame_skip_error;
1507                                 if (accumulated_error > 1) {
1508                                         pos += 1;
1509                                         accumulated_error -= 1.0f;
1510                                 }
1511
1512                                 (*marks)[n].position = pos;
1513
1514                                 if ((bbt_beat_subdivision > 4) && i_am_accented) {
1515                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1516                                 } else {
1517                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1518                                 }
1519                                 i_am_accented = false;
1520                                 n++;
1521                         }
1522                 }
1523
1524           break;
1525
1526         case bbt_show_ticks_super_detail:
1527
1528                 beats = current_bbt_points->size();
1529                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1530
1531                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1532                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1533
1534                 (*marks)[0].label = g_strdup(" ");
1535                 (*marks)[0].position = lower;
1536                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1537
1538                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1539                         if  ((*i).type != TempoMap::Beat) {
1540                                   continue;
1541                         }
1542                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1543                                   snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1544                                   (*marks)[0].label = g_strdup (buf);
1545                                   helper_active = true;
1546                         } else {
1547
1548                                   if ((*i).beat == 1) {
1549                                           (*marks)[n].style = GtkCustomRulerMarkMajor;
1550                                           snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1551                                   } else {
1552                                           (*marks)[n].style = GtkCustomRulerMarkMinor;
1553                                           snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1554                                   }
1555                                   if (((*i).frame < bbt_position_of_helper) && helper_active) {
1556                                           snprintf (buf, sizeof(buf), " ");
1557                                   }
1558                                   (*marks)[n].label =  g_strdup (buf);
1559                                   (*marks)[n].position = (*i).frame;
1560                                   n++;
1561                         }
1562
1563                         /* Add the tick marks */
1564
1565                         /* Find the next beat */
1566
1567                         next_beat.beats = (*i).beat;
1568                         next_beat.bars = (*i).bar;
1569
1570                         if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1571                                   next_beat.beats += 1;
1572                         } else {
1573                                   next_beat.bars += 1;
1574                                   next_beat.beats = 1;
1575                         }
1576
1577                         next_beat_pos = session->tempo_map().frame_time(next_beat);
1578
1579                         frame_skip = (nframes64_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1580                         frame_skip_error -= frame_skip;
1581                         skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1582
1583                         pos = (*i).frame + frame_skip;
1584                         accumulated_error = frame_skip_error;
1585
1586                         tick = skip;
1587
1588                         for (t = 0; (tick < Meter::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1589
1590                                   if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1591                                           i_am_accented = true;
1592                                   }
1593
1594                                   if (pos > bbt_position_of_helper) {
1595                                           snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1596                                   } else {
1597                                           snprintf (buf, sizeof(buf), " ");
1598                                   }
1599
1600                                   (*marks)[n].label = g_strdup (buf);
1601
1602                                   /* Error compensation for float to nframes64_t*/
1603                                   accumulated_error += frame_skip_error;
1604                                   if (accumulated_error > 1) {
1605                                           pos += 1;
1606                                           accumulated_error -= 1.0f;
1607                                   }
1608
1609                                   (*marks)[n].position = pos;
1610
1611                                   if ((bbt_beat_subdivision > 4) && i_am_accented) {
1612                                           (*marks)[n].style = GtkCustomRulerMarkMinor;
1613                                   } else {
1614                                           (*marks)[n].style = GtkCustomRulerMarkMicro;
1615                                   }
1616                                   i_am_accented = false;
1617                                   n++;
1618                         }
1619                 }
1620
1621           break;
1622
1623         case bbt_over:
1624                         bbt_nmarks = 1;
1625                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1626                         snprintf (buf, sizeof(buf), "cannot handle %" PRIu32 " bars", bbt_bars );
1627                         (*marks)[0].style = GtkCustomRulerMarkMajor;
1628                         (*marks)[0].label = g_strdup (buf);
1629                         (*marks)[0].position = lower;
1630                         n = 1;
1631
1632           break;
1633
1634         case bbt_show_64:
1635                         bbt_nmarks = (gint) (bbt_bars / 64) + 1;
1636                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1637                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; i++) {
1638                                 if ((*i).type == TempoMap::Bar)  {
1639                                         if ((*i).bar % 64 == 1) {
1640                                                 if ((*i).bar % 256 == 1) {
1641                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1642                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1643                                                 } else {
1644                                                         snprintf (buf, sizeof(buf), " ");
1645                                                         if ((*i).bar % 256 == 129)  {
1646                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1647                                                         } else {
1648                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1649                                                         }
1650                                                 }
1651                                                 (*marks)[n].label = g_strdup (buf);
1652                                                 (*marks)[n].position = (*i).frame;
1653                                                 n++;
1654                                         }
1655                                 }
1656                         }
1657                         break;
1658
1659         case bbt_show_16:
1660                 bbt_nmarks = (bbt_bars / 16) + 1;
1661                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1662                 for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; i++) {
1663                         if ((*i).type == TempoMap::Bar)  {
1664                           if ((*i).bar % 16 == 1) {
1665                                 if ((*i).bar % 64 == 1) {
1666                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1667                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1668                                 } else {
1669                                         snprintf (buf, sizeof(buf), " ");
1670                                         if ((*i).bar % 64 == 33)  {
1671                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1672                                         } else {
1673                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1674                                         }
1675                                 }
1676                                 (*marks)[n].label = g_strdup (buf);
1677                                 (*marks)[n].position = (*i).frame;
1678                                 n++;
1679                           }
1680                         }
1681                 }
1682           break;
1683
1684         case bbt_show_4:
1685                 bbt_nmarks = (bbt_bars / 4) + 1;
1686                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1687                 for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; ++i) {
1688                         if ((*i).type == TempoMap::Bar)  {
1689                           if ((*i).bar % 4 == 1) {
1690                                 if ((*i).bar % 16 == 1) {
1691                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1692                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1693                                 } else {
1694                                         snprintf (buf, sizeof(buf), " ");
1695                                         if ((*i).bar % 16 == 9)  {
1696                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1697                                         } else {
1698                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1699                                         }
1700                                 }
1701                                 (*marks)[n].label = g_strdup (buf);
1702                                 (*marks)[n].position = (*i).frame;
1703                                 n++;
1704                           }
1705                         }
1706                 }
1707           break;
1708
1709         case bbt_show_1:
1710   //    default:
1711                 bbt_nmarks = bbt_bars + 2;
1712                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks );
1713                 for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; i++) {
1714                         if ((*i).type == TempoMap::Bar)  {
1715                           if ((*i).bar % 4 == 1) {
1716                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1717                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1718                           } else {
1719                                 snprintf (buf, sizeof(buf), " ");
1720                                 if ((*i).bar % 4 == 3)  {
1721                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1722                                 } else {
1723                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1724                                 }
1725                           }
1726                         (*marks)[n].label = g_strdup (buf);
1727                         (*marks)[n].position = (*i).frame;
1728                         n++;
1729                         }
1730                 }
1731
1732         break;
1733
1734         }
1735
1736         return n; //return the actual number of marks made, since we might have skipped some from fractional time signatures
1737
1738 }
1739
1740 gint
1741 Editor::metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1742 {
1743         nframes64_t mark_interval;
1744         nframes64_t pos;
1745         nframes64_t ilower = (nframes64_t) floor (lower);
1746         nframes64_t iupper = (nframes64_t) floor (upper);
1747         gchar buf[16];
1748         gint nmarks;
1749         gint n;
1750
1751         if (session == 0) {
1752                 return 0;
1753         }
1754
1755         mark_interval = (iupper - ilower) / 5;
1756         if (mark_interval > session->frame_rate()) {
1757                 mark_interval -= mark_interval % session->frame_rate();
1758         } else {
1759                 mark_interval = session->frame_rate() / (session->frame_rate() / mark_interval ) ;
1760         }
1761         nmarks = 5;
1762         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1763         for (n = 0, pos = ilower; n < nmarks; pos += mark_interval, ++n) {
1764                 snprintf (buf, sizeof(buf), "%" PRIi64, pos);
1765                 (*marks)[n].label = g_strdup (buf);
1766                 (*marks)[n].position = pos;
1767                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1768         }
1769
1770         return nmarks;
1771 }
1772
1773 static void
1774 sample_to_clock_parts ( nframes64_t sample,
1775                         nframes64_t sample_rate,
1776                         long *hrs_p,
1777                         long *mins_p,
1778                         long *secs_p,
1779                         long *millisecs_p)
1780
1781 {
1782         nframes64_t left;
1783         long hrs;
1784         long mins;
1785         long secs;
1786         long millisecs;
1787
1788         left = sample;
1789         hrs = left / (sample_rate * 60 * 60);
1790         left -= hrs * sample_rate * 60 * 60;
1791         mins = left / (sample_rate * 60);
1792         left -= mins * sample_rate * 60;
1793         secs = left / sample_rate;
1794         left -= secs * sample_rate;
1795         millisecs = left * 1000 / sample_rate;
1796
1797         *millisecs_p = millisecs;
1798         *secs_p = secs;
1799         *mins_p = mins;
1800         *hrs_p = hrs;
1801
1802         return;
1803 }
1804
1805 void
1806 Editor::set_minsec_ruler_scale (gdouble lower, gdouble upper)
1807 {
1808         nframes64_t range;
1809         nframes64_t fr;
1810         nframes64_t spacer;
1811
1812         if (session == 0) {
1813                 return;
1814         }
1815
1816         fr = session->frame_rate();
1817
1818         /* to prevent 'flashing' */
1819         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
1820                 lower -= spacer;
1821         } else {
1822                 lower = 0;
1823         }
1824         upper += spacer;
1825         range = (nframes64_t) (upper - lower);
1826
1827         if (range <  (fr / 50)) {
1828                 minsec_mark_interval =  fr / 1000; /* show 1/1000 seconds */
1829                 minsec_ruler_scale = minsec_show_frames;
1830                 minsec_mark_modulo = 10;
1831         } else if (range <= (fr / 10)) { /* 0-0.1 second */
1832                 minsec_mark_interval = fr / 1000; /* show 1/1000 seconds */
1833                 minsec_ruler_scale = minsec_show_frames;
1834                 minsec_mark_modulo = 10;
1835         } else if (range <= (fr / 2)) { /* 0-0.5 second */
1836                 minsec_mark_interval = fr / 100;  /* show 1/100 seconds */
1837                 minsec_ruler_scale = minsec_show_frames;
1838                 minsec_mark_modulo = 100;
1839         } else if (range <= fr) { /* 0-1 second */
1840                 minsec_mark_interval = fr / 10;  /* show 1/10 seconds */
1841                 minsec_ruler_scale = minsec_show_frames;
1842                 minsec_mark_modulo = 200;
1843         } else if (range <= 2 * fr) { /* 1-2 seconds */
1844                 minsec_mark_interval = fr / 10; /* show 1/10 seconds */
1845                 minsec_ruler_scale = minsec_show_frames;
1846                 minsec_mark_modulo = 500;
1847         } else if (range <= 8 * fr) { /* 2-5 seconds */
1848                 minsec_mark_interval =  fr / 5; /* show 2 seconds */
1849                 minsec_ruler_scale = minsec_show_frames;
1850                 minsec_mark_modulo = 1000;
1851         } else if (range <= 16 * fr) { /* 8-16 seconds */
1852                 minsec_mark_interval =  fr; /* show 1 seconds */
1853                 minsec_ruler_scale = minsec_show_seconds;
1854                 minsec_mark_modulo = 2;
1855         } else if (range <= 30 * fr) { /* 10-30 seconds */
1856                 minsec_mark_interval =  fr; /* show 1 seconds */
1857                 minsec_ruler_scale = minsec_show_seconds;
1858                 minsec_mark_modulo = 5;
1859         } else if (range <= 60 * fr) { /* 30-60 seconds */
1860                 minsec_mark_interval = fr; /* show 1 seconds */
1861                 minsec_ruler_scale = minsec_show_seconds;
1862                 minsec_mark_modulo = 5;
1863         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1864                 minsec_mark_interval = 5 * fr; /* show 5 seconds */
1865                 minsec_ruler_scale = minsec_show_seconds;
1866                 minsec_mark_modulo = 3;
1867         } else if (range <= 4 * 60 * fr) { /* 4 minutes */
1868                 minsec_mark_interval = 5 * fr; /* show 10 seconds */
1869                 minsec_ruler_scale = minsec_show_seconds;
1870                 minsec_mark_modulo = 30;
1871         } else if (range <= 10 * 60 * fr) { /* 10 minutes */
1872                 minsec_mark_interval = 30 * fr; /* show 30 seconds */
1873                 minsec_ruler_scale = minsec_show_seconds;
1874                 minsec_mark_modulo = 120;
1875         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1876                 minsec_mark_interval =  60 * fr; /* show 1 minute */
1877                 minsec_ruler_scale = minsec_show_minutes;
1878                 minsec_mark_modulo = 5;
1879         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1880                 minsec_mark_interval = 2 * 60 * fr; /* show 2 minutes */
1881                 minsec_ruler_scale = minsec_show_minutes;
1882                 minsec_mark_modulo = 10;
1883         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1884                 minsec_mark_interval = 5 * 60 * fr; /* show 10 minutes */
1885                 minsec_ruler_scale = minsec_show_minutes;
1886                 minsec_mark_modulo = 30;
1887         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1888                 minsec_mark_interval = 20 * 60 * fr; /* show 20 minutes */
1889                 minsec_ruler_scale = minsec_show_minutes;
1890                 minsec_mark_modulo = 60;
1891         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1892                 minsec_mark_interval =  60 * 60 * fr; /* show 60 minutes */
1893                 minsec_ruler_scale = minsec_show_hours;
1894                 minsec_mark_modulo = 2;
1895         } else {
1896
1897                 /* not possible if nframes64_t is a 32 bit quantity */
1898
1899                 minsec_mark_interval = 4 * 60 * 60 * fr; /* show 4 hrs */
1900         }
1901         minsec_nmarks = 2 + (range / minsec_mark_interval);
1902 }
1903
1904 gint
1905 Editor::metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1906 {
1907         nframes64_t pos;
1908         nframes64_t spacer;
1909         long hrs, mins, secs, millisecs;
1910         gchar buf[16];
1911         gint n;
1912
1913         if (session == 0) {
1914                 return 0;
1915         }
1916
1917         /* to prevent 'flashing' */
1918         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
1919                 lower = lower - spacer;
1920         } else {
1921                 lower = 0;
1922         }
1923
1924         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * minsec_nmarks);
1925         pos = ((((nframes64_t) floor(lower)) + (minsec_mark_interval/2))/minsec_mark_interval) * minsec_mark_interval;
1926         switch (minsec_ruler_scale) {
1927         case minsec_show_seconds:
1928                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1929                         sample_to_clock_parts (pos, session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1930                         if (secs % minsec_mark_modulo == 0) {
1931                                 if (secs == 0) {
1932                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1933                                 } else {
1934                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1935                                 }
1936                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1937                         } else {
1938                                 snprintf (buf, sizeof(buf), " ");
1939                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1940                         }
1941                         (*marks)[n].label = g_strdup (buf);
1942                         (*marks)[n].position = pos;
1943                 }
1944           break;
1945         case minsec_show_minutes:
1946                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1947                         sample_to_clock_parts (pos, session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1948                         if (mins % minsec_mark_modulo == 0) {
1949                                 if (mins == 0) {
1950                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1951                                 } else {
1952                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1953                                 }
1954                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1955                         } else {
1956                                 snprintf (buf, sizeof(buf), " ");
1957                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1958                         }
1959                         (*marks)[n].label = g_strdup (buf);
1960                         (*marks)[n].position = pos;
1961                 }
1962           break;
1963         case minsec_show_hours:
1964                  for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1965                         sample_to_clock_parts (pos, session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1966                         if (hrs % minsec_mark_modulo == 0) {
1967                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1968                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1969                         } else {
1970                                 snprintf (buf, sizeof(buf), " ");
1971                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1972                         }
1973                         (*marks)[n].label = g_strdup (buf);
1974                         (*marks)[n].position = pos;
1975                 }
1976               break;
1977         case minsec_show_frames:
1978                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1979                         sample_to_clock_parts (pos, session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1980                         if (millisecs % minsec_mark_modulo == 0) {
1981                                 if (secs == 0) {
1982                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1983                                 } else {
1984                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1985                                 }
1986                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1987                         } else {
1988                                 snprintf (buf, sizeof(buf), " ");
1989                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1990                         }
1991                         (*marks)[n].label = g_strdup (buf);
1992                         (*marks)[n].position = pos;
1993                 }
1994           break;
1995         }
1996
1997         return minsec_nmarks;
1998 }