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 #define __STDC_FORMAT_MACROS 1
  21 #include <cstdio> // for sprintf, grrr
  22 #include <cmath>
  23 #include <inttypes.h>
  24
  25 #include <string>
  26
  27 #include <gtk/gtkaction.h>
  28
  29 #include "ardour/session.h"
  30 #include "ardour/tempo.h"
  31 #include "ardour/profile.h"
  32 #include <gtkmm2ext/gtk_ui.h>
  33
  34 #include "editor.h"
  35 #include "editing.h"
  36 #include "actions.h"
  37 #include "gtk-custom-hruler.h"
  38 #include "gui_thread.h"
  39 #include "time_axis_view.h"
  40 #include "editor_drag.h"
  41
  42 #include "i18n.h"
  43
  44 using namespace ARDOUR;
  45 using namespace PBD;
  46 using namespace Gtk;
  47 using namespace Editing;
  48
  49 Editor *Editor::ruler_editor;
  50
  51 /* the order here must match the "metric" enums in editor.h */
  52
  53 GtkCustomMetric Editor::ruler_metrics[4] = {
  54         {1, Editor::_metric_get_timecode },
  55         {1, Editor::_metric_get_bbt },
  56         {1, Editor::_metric_get_frames },
  57         {1, Editor::_metric_get_minsec }
  58 };
  59
  60 void
  61 Editor::initialize_rulers ()
  62 {
  63         ruler_editor = this;
  64         ruler_grabbed_widget = 0;
  65
  66         _ruler_separator = new Gtk::HSeparator();
  67         _ruler_separator->set_size_request(-1, 2);
  68         _ruler_separator->set_name("TimebarPadding");
  69         _ruler_separator->show();
  70
  71         _minsec_ruler = gtk_custom_hruler_new ();
  72         minsec_ruler = Glib::wrap (_minsec_ruler);
  73         minsec_ruler->set_name ("MinSecRuler");
  74         minsec_ruler->set_size_request (-1, (int)timebar_height);
  75         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
  76         minsec_ruler->hide ();
  77         minsec_ruler->set_no_show_all();
  78
  79         _timecode_ruler = gtk_custom_hruler_new ();
  80         timecode_ruler = Glib::wrap (_timecode_ruler);
  81         timecode_ruler->set_name ("TimecodeRuler");
  82         timecode_ruler->set_size_request (-1, (int)timebar_height);
  83         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_timecode_ruler), &ruler_metrics[ruler_metric_timecode]);
  84         timecode_ruler->hide ();
  85         timecode_ruler->set_no_show_all();
  86         timecode_nmarks = 0;
  87
  88         _bbt_ruler = gtk_custom_hruler_new ();
  89         bbt_ruler = Glib::wrap (_bbt_ruler);
  90         bbt_ruler->set_name ("BBTRuler");
  91         bbt_ruler->set_size_request (-1, (int)timebar_height);
  92         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
  93         bbt_ruler->hide ();
  94         bbt_ruler->set_no_show_all();
  95         bbt_nmarks = 0;
  96
  97         _frames_ruler = gtk_custom_hruler_new ();
  98         frames_ruler = Glib::wrap (_frames_ruler);
  99         frames_ruler->set_name ("FramesRuler");
 100         frames_ruler->set_size_request (-1, (int)timebar_height);
 101         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
 102         frames_ruler->hide ();
 103         frames_ruler->set_no_show_all();
 104
 105         _bbt_ruler = gtk_custom_hruler_new ();
 106         bbt_ruler = Glib::wrap (_bbt_ruler);
 107         bbt_ruler->set_name ("BBTRuler");
 108         bbt_ruler->set_size_request (-1, (int)timebar_height);
 109         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 110         bbt_ruler->hide ();
 111         bbt_ruler->set_no_show_all();
 112         minsec_ruler->hide ();
 113         minsec_ruler->set_no_show_all();
 114         minsec_nmarks = 0;
 115
 116         using namespace Box_Helpers;
 117         BoxList & ruler_lab_children =  ruler_label_vbox.children();
 118         BoxList & ruler_children =  time_canvas_vbox.children();
 119         BoxList & lab_children =  time_button_vbox.children();
 120
 121         BoxList::iterator canvaspos = ruler_children.begin();
 122
 123         lab_children.push_back (Element(meter_label, PACK_SHRINK, PACK_START));
 124         lab_children.push_back (Element(tempo_label, PACK_SHRINK, PACK_START));
 125         lab_children.push_back (Element(range_mark_label, PACK_SHRINK, PACK_START));
 126         lab_children.push_back (Element(transport_mark_label, PACK_SHRINK, PACK_START));
 127         lab_children.push_back (Element(cd_mark_label, PACK_SHRINK, PACK_START));
 128         lab_children.push_back (Element(mark_label, PACK_SHRINK, PACK_START));
 129
 130         ruler_lab_children.push_back (Element(minsec_label, PACK_SHRINK, PACK_START));
 131         ruler_children.insert (canvaspos, Element(*minsec_ruler, PACK_SHRINK, PACK_START));
 132         ruler_lab_children.push_back (Element(timecode_label, PACK_SHRINK, PACK_START));
 133         ruler_children.insert (canvaspos, Element(*timecode_ruler, PACK_SHRINK, PACK_START));
 134         ruler_lab_children.push_back (Element(frame_label, PACK_SHRINK, PACK_START));
 135         ruler_children.insert (canvaspos, Element(*frames_ruler, PACK_SHRINK, PACK_START));
 136         ruler_lab_children.push_back (Element(bbt_label, PACK_SHRINK, PACK_START));
 137         ruler_children.insert (canvaspos, Element(*bbt_ruler, PACK_SHRINK, PACK_START));
 138
 139         timecode_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 140         bbt_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 141         frames_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 142         minsec_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 143
 144         timecode_ruler->signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_release));
 145         bbt_ruler->signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_release));
 146         frames_ruler->signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_release));
 147         minsec_ruler->signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_release));
 148
 149         timecode_ruler->signal_button_press_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_press));
 150         bbt_ruler->signal_button_press_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_press));
 151         frames_ruler->signal_button_press_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_press));
 152         minsec_ruler->signal_button_press_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_press));
 153
 154         timecode_ruler->signal_motion_notify_event().connect (sigc::mem_fun(*this, &Editor::ruler_mouse_motion));
 155         bbt_ruler->signal_motion_notify_event().connect (sigc::mem_fun(*this, &Editor::ruler_mouse_motion));
 156         frames_ruler->signal_motion_notify_event().connect (sigc::mem_fun(*this, &Editor::ruler_mouse_motion));
 157         minsec_ruler->signal_motion_notify_event().connect (sigc::mem_fun(*this, &Editor::ruler_mouse_motion));
 158
 159         timecode_ruler->signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::ruler_scroll));
 160         bbt_ruler->signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::ruler_scroll));
 161         frames_ruler->signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::ruler_scroll));
 162         minsec_ruler->signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::ruler_scroll));
 163
 164         visible_timebars = 0; /*this will be changed below */
 165         canvas_timebars_vsize = 0;
 166 }
 167
 168 bool
 169 Editor::ruler_scroll (GdkEventScroll* event)
 170 {
 171         nframes64_t xdelta;
 172         int direction = event->direction;
 173         bool handled = false;
 174
 175         switch (direction) {
 176         case GDK_SCROLL_UP:
 177                 temporal_zoom_step (true);
 178                 handled = true;
 179                 break;
 180
 181         case GDK_SCROLL_DOWN:
 182                 temporal_zoom_step (false);
 183                 handled = true;
 184                 break;
 185
 186         case GDK_SCROLL_LEFT:
 187                 xdelta = (current_page_frames() / 2);
 188                 if (leftmost_frame > xdelta) {
 189                         reset_x_origin (leftmost_frame - xdelta);
 190                 } else {
 191                         reset_x_origin (0);
 192                 }
 193                 handled = true;
 194                 break;
 195
 196         case GDK_SCROLL_RIGHT:
 197                 xdelta = (current_page_frames() / 2);
 198                 if (max_frames - xdelta > leftmost_frame) {
 199                         reset_x_origin (leftmost_frame + xdelta);
 200                 } else {
 201                         reset_x_origin (max_frames - current_page_frames());
 202                 }
 203                 handled = true;
 204                 break;
 205
 206         default:
 207                 /* what? */
 208                 break;
 209         }
 210
 211         return handled;
 212 }
 213
 214
 215 gint
 216 Editor::ruler_button_press (GdkEventButton* ev)
 217 {
 218         if (_session == 0) {
 219                 return FALSE;
 220         }
 221
 222         // jlc: grab ev->window ?
 223         //Gtk::Main::grab_add (*minsec_ruler);
 224         Widget * grab_widget = 0;
 225
 226         if (timecode_ruler->is_realized() && ev->window == timecode_ruler->get_window()->gobj()) {
 227                 grab_widget = timecode_ruler;
 228         } else if (bbt_ruler->is_realized() && ev->window == bbt_ruler->get_window()->gobj()) {
 229                 grab_widget = bbt_ruler;
 230         } else if (frames_ruler->is_realized() && ev->window == frames_ruler->get_window()->gobj()) {
 231                 grab_widget = frames_ruler;
 232         } else if (minsec_ruler->is_realized() && ev->window == minsec_ruler->get_window()->gobj()) {
 233                 grab_widget = minsec_ruler;
 234         }
 235
 236         if (grab_widget) {
 237                 grab_widget->add_modal_grab ();
 238                 ruler_grabbed_widget = grab_widget;
 239         }
 240
 241         if (ev->button == 1) {
 242                 // Since we will locate the playhead on button release, cancel any running
 243                 // auditions.
 244                 if (_session->is_auditioning()) {
 245                         _session->cancel_audition ();
 246                 }
 247
 248                 /* playhead cursor */
 249                 _drags->set (new CursorDrag (this, &playhead_cursor->canvas_item, false), reinterpret_cast<GdkEvent *> (ev));
 250                 _dragging_playhead = true;
 251         }
 252
 253         return TRUE;
 254 }
 255
 256 gint
 257 Editor::ruler_button_release (GdkEventButton* ev)
 258 {
 259         if (_session == 0) {
 260                 return FALSE;
 261         }
 262
 263         gint x,y;
 264         Gdk::ModifierType state;
 265
 266         if (_drags->active ()) {
 267                 _drags->end_grab (reinterpret_cast<GdkEvent*> (ev));
 268                 _dragging_playhead = false;
 269         }
 270
 271         if (ev->button == 3) {
 272                 /* need to use the correct x,y, the event lies */
 273                 time_canvas_event_box.get_window()->get_pointer (x, y, state);
 274
 275                 stop_canvas_autoscroll();
 276
 277                 nframes64_t where = leftmost_frame + pixel_to_frame (x);
 278                 snap_to (where);
 279                 popup_ruler_menu (where);
 280         }
 281
 282         if (ruler_grabbed_widget) {
 283                 ruler_grabbed_widget->remove_modal_grab();
 284                 ruler_grabbed_widget = 0;
 285         }
 286
 287         return TRUE;
 288 }
 289
 290 gint
 291 Editor::ruler_label_button_release (GdkEventButton* ev)
 292 {
 293         if (ev->button == 3) {
 294                 Gtk::Menu* m= dynamic_cast<Gtk::Menu*> (ActionManager::get_widget (X_("/RulerMenuPopup")));
 295                 if (m) {
 296                         m->popup (1, ev->time);
 297                 }
 298         }
 299
 300         return TRUE;
 301 }
 302
 303
 304 gint
 305 Editor::ruler_mouse_motion (GdkEventMotion* ev)
 306 {
 307         if (_session == 0) {
 308                 return FALSE;
 309         }
 310
 311         if (_drags->active ()) {
 312                 _drags->motion_handler (reinterpret_cast<GdkEvent*> (ev), false);
 313         }
 314
 315         return TRUE;
 316 }
 317
 318
 319 void
 320 Editor::popup_ruler_menu (nframes64_t where, ItemType t)
 321 {
 322         using namespace Menu_Helpers;
 323
 324         if (editor_ruler_menu == 0) {
 325                 editor_ruler_menu = new Menu;
 326                 editor_ruler_menu->set_name ("ArdourContextMenu");
 327         }
 328
 329         // always build from scratch
 330         MenuList& ruler_items = editor_ruler_menu->items();
 331         editor_ruler_menu->set_name ("ArdourContextMenu");
 332         ruler_items.clear();
 333
 334         switch (t) {
 335         case MarkerBarItem:
 336                 ruler_items.push_back (MenuElem (_("New location marker"), sigc::bind ( sigc::mem_fun(*this, &Editor::mouse_add_new_marker), where, false, false)));
 337                 ruler_items.push_back (MenuElem (_("Clear all locations"), sigc::mem_fun(*this, &Editor::clear_markers)));
 338                 ruler_items.push_back (MenuElem (_("Unhide locations"), sigc::mem_fun(*this, &Editor::unhide_markers)));
 339                 ruler_items.push_back (SeparatorElem ());
 340                 break;
 341         case RangeMarkerBarItem:
 342                 //ruler_items.push_back (MenuElem (_("New Range")));
 343                 ruler_items.push_back (MenuElem (_("Clear all ranges"), sigc::mem_fun(*this, &Editor::clear_ranges)));
 344                 ruler_items.push_back (MenuElem (_("Unhide ranges"), sigc::mem_fun(*this, &Editor::unhide_ranges)));
 345                 ruler_items.push_back (SeparatorElem ());
 346
 347                 break;
 348         case TransportMarkerBarItem:
 349
 350                 break;
 351
 352         case CdMarkerBarItem:
 353                 // TODO
 354                 ruler_items.push_back (MenuElem (_("New CD track marker"), sigc::bind ( sigc::mem_fun(*this, &Editor::mouse_add_new_marker), where, true, false)));
 355                 break;
 356
 357
 358         case TempoBarItem:
 359                 ruler_items.push_back (MenuElem (_("New Tempo"), sigc::bind ( sigc::mem_fun(*this, &Editor::mouse_add_new_tempo_event), where)));
 360                 ruler_items.push_back (MenuElem (_("Clear tempo")));
 361                 ruler_items.push_back (SeparatorElem ());
 362                 break;
 363
 364         case MeterBarItem:
 365                 ruler_items.push_back (MenuElem (_("New Meter"), sigc::bind ( sigc::mem_fun(*this, &Editor::mouse_add_new_meter_event), where)));
 366                 ruler_items.push_back (MenuElem (_("Clear meter")));
 367                 ruler_items.push_back (SeparatorElem ());
 368                 break;
 369
 370         default:
 371                 break;
 372         }
 373
 374         Glib::RefPtr<Action> action;
 375
 376         action = ActionManager::get_action ("Rulers", "toggle-minsec-ruler");
 377         if (action) {
 378                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 379         }
 380         if (!Profile->get_sae()) {
 381                 action = ActionManager::get_action ("Rulers", "toggle-timecode-ruler");
 382                 if (action) {
 383                         ruler_items.push_back (MenuElem (*action->create_menu_item()));
 384                 }
 385         }
 386         action = ActionManager::get_action ("Rulers", "toggle-samples-ruler");
 387         if (action) {
 388                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 389         }
 390         action = ActionManager::get_action ("Rulers", "toggle-bbt-ruler");
 391         if (action) {
 392                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 393         }
 394         action = ActionManager::get_action ("Rulers", "toggle-meter-ruler");
 395         if (action) {
 396                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 397         }
 398         action = ActionManager::get_action ("Rulers", "toggle-tempo-ruler");
 399         if (action) {
 400                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 401         }
 402         if (!Profile->get_sae()) {
 403                 action = ActionManager::get_action ("Rulers", "toggle-range-ruler");
 404                 if (action) {
 405                         ruler_items.push_back (MenuElem (*action->create_menu_item()));
 406                 }
 407         }
 408         action = ActionManager::get_action ("Rulers", "toggle-loop-punch-ruler");
 409         if (action) {
 410                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 411         }
 412         action = ActionManager::get_action ("Rulers", "toggle-cd-marker-ruler");
 413         if (action) {
 414                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 415         }
 416         action = ActionManager::get_action ("Rulers", "toggle-marker-ruler");
 417         if (action) {
 418                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 419         }
 420
 421         editor_ruler_menu->popup (1, gtk_get_current_event_time());
 422
 423         no_ruler_shown_update = false;
 424 }
 425
 426 void
 427 Editor::store_ruler_visibility ()
 428 {
 429         XMLNode* node = new XMLNode(X_("RulerVisibility"));
 430
 431         node->add_property (X_("timecode"), ruler_timecode_action->get_active() ? "yes": "no");
 432         node->add_property (X_("bbt"), ruler_bbt_action->get_active() ? "yes": "no");
 433         node->add_property (X_("frames"), ruler_samples_action->get_active() ? "yes": "no");
 434         node->add_property (X_("minsec"), ruler_minsec_action->get_active() ? "yes": "no");
 435         node->add_property (X_("tempo"), ruler_tempo_action->get_active() ? "yes": "no");
 436         node->add_property (X_("meter"), ruler_meter_action->get_active() ? "yes": "no");
 437         node->add_property (X_("marker"), ruler_marker_action->get_active() ? "yes": "no");
 438         node->add_property (X_("rangemarker"), ruler_range_action->get_active() ? "yes": "no");
 439         node->add_property (X_("transportmarker"), ruler_loop_punch_action->get_active() ? "yes": "no");
 440         node->add_property (X_("cdmarker"), ruler_cd_marker_action->get_active() ? "yes": "no");
 441
 442         _session->add_extra_xml (*node);
 443         _session->set_dirty ();
 444 }
 445
 446 void
 447 Editor::restore_ruler_visibility ()
 448 {
 449         XMLProperty* prop;
 450         XMLNode * node = _session->extra_xml (X_("RulerVisibility"));
 451
 452         no_ruler_shown_update = true;
 453
 454         if (node) {
 455                 if ((prop = node->property ("timecode")) != 0) {
 456                         if (string_is_affirmative (prop->value())) {
 457                                 ruler_timecode_action->set_active (true);
 458                         } else {
 459                                 ruler_timecode_action->set_active (false);
 460                         }
 461                 }
 462                 if ((prop = node->property ("bbt")) != 0) {
 463                         if (string_is_affirmative (prop->value())) {
 464                                 ruler_bbt_action->set_active (true);
 465                         } else {
 466                                 ruler_bbt_action->set_active (false);
 467                         }
 468                 }
 469                 if ((prop = node->property ("frames")) != 0) {
 470                         if (string_is_affirmative (prop->value())) {
 471                                 ruler_samples_action->set_active (true);
 472                         } else {
 473                                 ruler_samples_action->set_active (false);
 474                         }
 475                 }
 476                 if ((prop = node->property ("minsec")) != 0) {
 477                         if (string_is_affirmative (prop->value())) {
 478                                 ruler_minsec_action->set_active (true);
 479                         } else {
 480                                 ruler_minsec_action->set_active (false);
 481                         }
 482                 }
 483                 if ((prop = node->property ("tempo")) != 0) {
 484                         if (string_is_affirmative (prop->value())) {
 485                                 ruler_tempo_action->set_active (true);
 486                         } else {
 487                                 ruler_tempo_action->set_active (false);
 488                         }
 489                 }
 490                 if ((prop = node->property ("meter")) != 0) {
 491                         if (string_is_affirmative (prop->value())) {
 492                                 ruler_meter_action->set_active (true);
 493                         } else {
 494                                 ruler_meter_action->set_active (false);
 495                         }
 496                 }
 497                 if ((prop = node->property ("marker")) != 0) {
 498                         if (string_is_affirmative (prop->value())) {
 499                                 ruler_marker_action->set_active (true);
 500                         } else {
 501                                 ruler_marker_action->set_active (false);
 502                         }
 503                 }
 504                 if ((prop = node->property ("rangemarker")) != 0) {
 505                         if (string_is_affirmative (prop->value())) {
 506                                 ruler_range_action->set_active (true);
 507                         } else {
 508                                 ruler_range_action->set_active (false);
 509                         }
 510                 }
 511
 512                 if ((prop = node->property ("transportmarker")) != 0) {
 513                         if (string_is_affirmative (prop->value())) {
 514                                 ruler_loop_punch_action->set_active (true);
 515                         } else {
 516                                 ruler_loop_punch_action->set_active (false);
 517                         }
 518                 }
 519
 520                 if ((prop = node->property ("cdmarker")) != 0) {
 521                         if (string_is_affirmative (prop->value())) {
 522                                 ruler_cd_marker_action->set_active (true);
 523                         } else {
 524                                 ruler_cd_marker_action->set_active (false);
 525                         }
 526
 527                 } else {
 528                         // this _session doesn't yet know about the cdmarker ruler
 529                         // as a benefit to the user who doesn't know the feature exists, show the ruler if
 530                         // any cd marks exist
 531                         ruler_cd_marker_action->set_active (false);
 532                         const Locations::LocationList & locs = _session->locations()->list();
 533                         for (Locations::LocationList::const_iterator i = locs.begin(); i != locs.end(); ++i) {
 534                                 if ((*i)->is_cd_marker()) {
 535                                         ruler_cd_marker_action->set_active (true);
 536                                         break;
 537                                 }
 538                         }
 539                 }
 540
 541         }
 542
 543         no_ruler_shown_update = false;
 544         update_ruler_visibility ();
 545 }
 546
 547 void
 548 Editor::update_ruler_visibility ()
 549 {
 550         int visible_rulers = 0;
 551
 552         if (no_ruler_shown_update) {
 553                 return;
 554         }
 555
 556         visible_timebars = 0;
 557
 558         if (ruler_minsec_action->get_active()) {
 559                 visible_rulers++;
 560                 minsec_label.show ();
 561                 minsec_ruler->show ();
 562         } else {
 563                 minsec_label.hide ();
 564                 minsec_ruler->hide ();
 565         }
 566
 567         if (ruler_timecode_action->get_active()) {
 568                 visible_rulers++;
 569                 timecode_label.show ();
 570                 timecode_ruler->show ();
 571         } else {
 572                 timecode_label.hide ();
 573                 timecode_ruler->hide ();
 574         }
 575
 576         if (ruler_samples_action->get_active()) {
 577                 visible_rulers++;
 578                 frame_label.show ();
 579                 frames_ruler->show ();
 580         } else {
 581                 frame_label.hide ();
 582                 frames_ruler->hide ();
 583         }
 584
 585         if (ruler_bbt_action->get_active()) {
 586                 visible_rulers++;
 587                 bbt_label.show ();
 588                 bbt_ruler->show ();
 589         } else {
 590                 bbt_label.hide ();
 591                 bbt_ruler->hide ();
 592         }
 593
 594         double tbpos = 0.0;
 595         double tbgpos = 0.0;
 596         double old_unit_pos;
 597
 598 #ifdef GTKOSX
 599         /* gtk update probs require this (damn) */
 600         meter_label.hide();
 601         tempo_label.hide();
 602         range_mark_label.hide();
 603         transport_mark_label.hide();
 604         cd_mark_label.hide();
 605         mark_label.hide();
 606 #endif
 607         if (ruler_meter_action->get_active()) {
 608                 old_unit_pos = meter_group->property_y();
 609                 if (tbpos != old_unit_pos) {
 610                         meter_group->move ( 0.0, tbpos - old_unit_pos);
 611                 }
 612                 old_unit_pos = meter_bar_group->property_y();
 613                 if (tbgpos != old_unit_pos) {
 614                         meter_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 615                 }
 616                 meter_bar_group->show();
 617                 meter_group->show();
 618                 meter_label.show();
 619                 tbpos += timebar_height;
 620                 tbgpos += timebar_height;
 621                 visible_timebars++;
 622         } else {
 623                 meter_bar_group->hide();
 624                 meter_group->hide();
 625                 meter_label.hide();
 626         }
 627
 628         if (ruler_tempo_action->get_active()) {
 629                 old_unit_pos = tempo_group->property_y();
 630                 if (tbpos != old_unit_pos) {
 631                         tempo_group->move(0.0, tbpos - old_unit_pos);
 632                 }
 633                 old_unit_pos = tempo_bar_group->property_y();
 634                 if (tbgpos != old_unit_pos) {
 635                         tempo_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 636                 }
 637                 tempo_bar_group->show();
 638                 tempo_group->show();
 639                 tempo_label.show();
 640                 tbpos += timebar_height;
 641                 tbgpos += timebar_height;
 642                 visible_timebars++;
 643         } else {
 644                 tempo_bar_group->hide();
 645                 tempo_group->hide();
 646                 tempo_label.hide();
 647         }
 648
 649         if (!Profile->get_sae() && ruler_range_action->get_active()) {
 650                 old_unit_pos = range_marker_group->property_y();
 651                 if (tbpos != old_unit_pos) {
 652                         range_marker_group->move (0.0, tbpos - old_unit_pos);
 653                 }
 654                 old_unit_pos = range_marker_bar_group->property_y();
 655                 if (tbgpos != old_unit_pos) {
 656                         range_marker_bar_group->move (0.0, tbgpos - old_unit_pos);
 657                 }
 658                 range_marker_bar_group->show();
 659                 range_marker_group->show();
 660                 range_mark_label.show();
 661
 662                 tbpos += timebar_height;
 663                 tbgpos += timebar_height;
 664                 visible_timebars++;
 665         } else {
 666                 range_marker_bar_group->hide();
 667                 range_marker_group->hide();
 668                 range_mark_label.hide();
 669         }
 670
 671         if (ruler_loop_punch_action->get_active()) {
 672                 old_unit_pos = transport_marker_group->property_y();
 673                 if (tbpos != old_unit_pos) {
 674                         transport_marker_group->move ( 0.0, tbpos - old_unit_pos);
 675                 }
 676                 old_unit_pos = transport_marker_bar_group->property_y();
 677                 if (tbgpos != old_unit_pos) {
 678                         transport_marker_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 679                 }
 680                 transport_marker_bar_group->show();
 681                 transport_marker_group->show();
 682                 transport_mark_label.show();
 683                 tbpos += timebar_height;
 684                 tbgpos += timebar_height;
 685                 visible_timebars++;
 686         } else {
 687                 transport_marker_bar_group->hide();
 688                 transport_marker_group->hide();
 689                 transport_mark_label.hide();
 690         }
 691
 692         if (ruler_cd_marker_action->get_active()) {
 693                 old_unit_pos = cd_marker_group->property_y();
 694                 if (tbpos != old_unit_pos) {
 695                         cd_marker_group->move (0.0, tbpos - old_unit_pos);
 696                 }
 697                 old_unit_pos = cd_marker_bar_group->property_y();
 698                 if (tbgpos != old_unit_pos) {
 699                         cd_marker_bar_group->move (0.0, tbgpos - old_unit_pos);
 700                 }
 701                 cd_marker_bar_group->show();
 702                 cd_marker_group->show();
 703                 cd_mark_label.show();
 704                 tbpos += timebar_height;
 705                 tbgpos += timebar_height;
 706                 visible_timebars++;
 707                 // make sure all cd markers show up in their respective places
 708                 update_cd_marker_display();
 709         } else {
 710                 cd_marker_bar_group->hide();
 711                 cd_marker_group->hide();
 712                 cd_mark_label.hide();
 713                 // make sure all cd markers show up in their respective places
 714                 update_cd_marker_display();
 715         }
 716
 717         if (ruler_marker_action->get_active()) {
 718                 old_unit_pos = marker_group->property_y();
 719                 if (tbpos != old_unit_pos) {
 720                         marker_group->move ( 0.0, tbpos - old_unit_pos);
 721                 }
 722                 old_unit_pos = marker_bar_group->property_y();
 723                 if (tbgpos != old_unit_pos) {
 724                         marker_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 725                 }
 726                 marker_bar_group->show();
 727                 marker_group->show();
 728                 mark_label.show();
 729                 tbpos += timebar_height;
 730                 tbgpos += timebar_height;
 731                 visible_timebars++;
 732         } else {
 733                 marker_bar_group->hide();
 734                 marker_group->hide();
 735                 mark_label.hide();
 736         }
 737
 738         gdouble old_canvas_timebars_vsize = canvas_timebars_vsize;
 739         canvas_timebars_vsize = (timebar_height * visible_timebars) - 1;
 740         gdouble vertical_pos_delta = canvas_timebars_vsize - old_canvas_timebars_vsize;
 741         vertical_adjustment.set_upper(vertical_adjustment.get_upper() + vertical_pos_delta);
 742         full_canvas_height += vertical_pos_delta;
 743
 744         if (vertical_adjustment.get_value() != 0 && (vertical_adjustment.get_value() + _canvas_height >= full_canvas_height)) {
 745                 /*if we're at the bottom of the canvas, don't move the _trackview_group*/
 746                 vertical_adjustment.set_value (full_canvas_height - _canvas_height + 1);
 747         } else {
 748                 _trackview_group->property_y () = - get_trackview_group_vertical_offset ();
 749                 _background_group->property_y () = - get_trackview_group_vertical_offset ();
 750                 _trackview_group->move (0, 0);
 751                 _background_group->move (0, 0);
 752                 last_trackview_group_vertical_offset = get_trackview_group_vertical_offset ();
 753         }
 754
 755         gdouble bottom_track_pos = vertical_adjustment.get_value() + _canvas_height - canvas_timebars_vsize;
 756         std::pair<TimeAxisView*, int> const p = trackview_by_y_position (bottom_track_pos);
 757         if (p.first) {
 758                 p.first->clip_to_viewport ();
 759         }
 760
 761         ruler_label_vbox.set_size_request (-1, (int)(timebar_height * visible_rulers));
 762         time_canvas_vbox.set_size_request (-1,-1);
 763
 764         update_fixed_rulers();
 765         redisplay_tempo (false);
 766 }
 767
 768 void
 769 Editor::update_just_timecode ()
 770 {
 771         ENSURE_GUI_THREAD (*this, &Editor::update_just_timecode)
 772
 773         if (_session == 0) {
 774                 return;
 775         }
 776
 777         nframes64_t rightmost_frame = leftmost_frame + current_page_frames();
 778
 779         if (ruler_timecode_action->get_active()) {
 780                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_timecode_ruler), leftmost_frame, rightmost_frame,
 781                                             leftmost_frame, _session->current_end_frame());
 782         }
 783 }
 784
 785 void
 786 Editor::compute_fixed_ruler_scale ()
 787 {
 788         if (_session == 0) {
 789                 return;
 790         }
 791
 792         if (ruler_timecode_action->get_active()) {
 793                 set_timecode_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames() );
 794         }
 795
 796         if (ruler_minsec_action->get_active()) {
 797                 set_minsec_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames() );
 798         }
 799 }
 800
 801 void
 802 Editor::update_fixed_rulers ()
 803 {
 804         nframes64_t rightmost_frame;
 805
 806         if (_session == 0) {
 807                 return;
 808         }
 809
 810         ruler_metrics[ruler_metric_timecode].units_per_pixel = frames_per_unit;
 811         ruler_metrics[ruler_metric_frames].units_per_pixel = frames_per_unit;
 812         ruler_metrics[ruler_metric_minsec].units_per_pixel = frames_per_unit;
 813
 814         rightmost_frame = leftmost_frame + current_page_frames();
 815
 816         /* these force a redraw, which in turn will force execution of the metric callbacks
 817            to compute the relevant ticks to display.
 818         */
 819
 820         if (ruler_timecode_action->get_active()) {
 821                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_timecode_ruler), leftmost_frame, rightmost_frame,
 822                                             leftmost_frame, _session->current_end_frame());
 823         }
 824
 825         if (ruler_samples_action->get_active()) {
 826                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_frames_ruler), leftmost_frame, rightmost_frame,
 827                                             leftmost_frame, _session->current_end_frame());
 828         }
 829
 830         if (ruler_minsec_action->get_active()) {
 831                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_minsec_ruler), leftmost_frame, rightmost_frame,
 832                                             leftmost_frame, _session->current_end_frame());
 833         }
 834 }
 835
 836 void
 837 Editor::update_tempo_based_rulers ()
 838 {
 839         if (_session == 0) {
 840                 return;
 841         }
 842
 843         ruler_metrics[ruler_metric_bbt].units_per_pixel = frames_per_unit;
 844
 845         if (ruler_bbt_action->get_active()) {
 846                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_bbt_ruler), leftmost_frame, leftmost_frame+current_page_frames(),
 847                                             leftmost_frame, _session->current_end_frame());
 848         }
 849 }
 850
 851 /* Mark generation */
 852
 853 gint
 854 Editor::_metric_get_timecode (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 855 {
 856         return ruler_editor->metric_get_timecode (marks, lower, upper, maxchars);
 857 }
 858
 859 gint
 860 Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 861 {
 862         return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 863 }
 864
 865 gint
 866 Editor::_metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 867 {
 868         return ruler_editor->metric_get_frames (marks, lower, upper, maxchars);
 869 }
 870
 871 gint
 872 Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 873 {
 874         return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 875 }
 876
 877 void
 878 Editor::set_timecode_ruler_scale (gdouble lower, gdouble upper)
 879 {
 880         nframes64_t range;
 881         nframes64_t spacer;
 882         nframes64_t fr;
 883
 884         if (_session == 0) {
 885                 return;
 886         }
 887
 888         fr = _session->frame_rate();
 889
 890         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
 891                 lower = lower - spacer;
 892         } else {
 893                 lower = 0;
 894         }
 895         upper = upper + spacer;
 896         range = (nframes64_t) floor (upper - lower);
 897
 898         if (range < (2 * _session->frames_per_timecode_frame())) { /* 0 - 2 frames */
 899                 timecode_ruler_scale = timecode_show_bits;
 900                 timecode_mark_modulo = 20;
 901                 timecode_nmarks = 2 + (2 * _session->config.get_subframes_per_frame());
 902         } else if (range <= (fr / 4)) { /* 2 frames - 0.250 second */
 903                 timecode_ruler_scale = timecode_show_frames;
 904                 timecode_mark_modulo = 1;
 905                 timecode_nmarks = 2 + (range / (nframes64_t)_session->frames_per_timecode_frame());
 906         } else if (range <= (fr / 2)) { /* 0.25-0.5 second */
 907                 timecode_ruler_scale = timecode_show_frames;
 908                 timecode_mark_modulo = 2;
 909                 timecode_nmarks = 2 + (range / (nframes64_t)_session->frames_per_timecode_frame());
 910         } else if (range <= fr) { /* 0.5-1 second */
 911                 timecode_ruler_scale = timecode_show_frames;
 912                 timecode_mark_modulo = 5;
 913                 timecode_nmarks = 2 + (range / (nframes64_t)_session->frames_per_timecode_frame());
 914         } else if (range <= 2 * fr) { /* 1-2 seconds */
 915                 timecode_ruler_scale = timecode_show_frames;
 916                 timecode_mark_modulo = 10;
 917                 timecode_nmarks = 2 + (range / (nframes64_t)_session->frames_per_timecode_frame());
 918         } else if (range <= 8 * fr) { /* 2-8 seconds */
 919                 timecode_ruler_scale = timecode_show_seconds;
 920                 timecode_mark_modulo = 1;
 921                 timecode_nmarks = 2 + (range / fr);
 922         } else if (range <= 16 * fr) { /* 8-16 seconds */
 923                 timecode_ruler_scale = timecode_show_seconds;
 924                 timecode_mark_modulo = 2;
 925                 timecode_nmarks = 2 + (range / fr);
 926         } else if (range <= 30 * fr) { /* 16-30 seconds */
 927                 timecode_ruler_scale = timecode_show_seconds;
 928                 timecode_mark_modulo = 5;
 929                 timecode_nmarks = 2 + (range / fr);
 930         } else if (range <= 60 * fr) { /* 30-60 seconds */
 931                 timecode_ruler_scale = timecode_show_seconds;
 932                 timecode_mark_modulo = 5;
 933                 timecode_nmarks = 2 + (range / fr);
 934         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
 935                 timecode_ruler_scale = timecode_show_seconds;
 936                 timecode_mark_modulo = 15;
 937                 timecode_nmarks = 2 + (range / fr);
 938         } else if (range <= 4 * 60 * fr) { /* 2-4 minutes */
 939                 timecode_ruler_scale = timecode_show_seconds;
 940                 timecode_mark_modulo = 30;
 941                 timecode_nmarks = 2 + (range / fr);
 942         } else if (range <= 10 * 60 * fr) { /* 4-10 minutes */
 943                 timecode_ruler_scale = timecode_show_minutes;
 944                 timecode_mark_modulo = 2;
 945                 timecode_nmarks = 2 + 10;
 946         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
 947                 timecode_ruler_scale = timecode_show_minutes;
 948                 timecode_mark_modulo = 5;
 949                 timecode_nmarks = 2 + 30;
 950         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
 951                 timecode_ruler_scale = timecode_show_minutes;
 952                 timecode_mark_modulo = 10;
 953                 timecode_nmarks = 2 + 60;
 954         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
 955                 timecode_ruler_scale = timecode_show_minutes;
 956                 timecode_mark_modulo = 30;
 957                 timecode_nmarks = 2 + (60 * 4);
 958         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
 959                 timecode_ruler_scale = timecode_show_hours;
 960                 timecode_mark_modulo = 1;
 961                 timecode_nmarks = 2 + 8;
 962         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
 963                 timecode_ruler_scale = timecode_show_hours;
 964                 timecode_mark_modulo = 1;
 965                 timecode_nmarks = 2 + 24;
 966         } else {
 967
 968                 /* not possible if nframes64_t is a 32 bit quantity */
 969
 970                 timecode_ruler_scale = timecode_show_hours;
 971                 timecode_mark_modulo = 4;
 972                 timecode_nmarks = 2 + 24;
 973         }
 974
 975 }
 976
 977 gint
 978 Editor::metric_get_timecode (GtkCustomRulerMark **marks, gdouble lower, gdouble /*upper*/, gint /*maxchars*/)
 979 {
 980         nframes_t pos;
 981         nframes64_t spacer;
 982         Timecode::Time timecode;
 983         gchar buf[16];
 984         gint n;
 985
 986         if (_session == 0) {
 987                 return 0;
 988         }
 989
 990         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
 991                 lower = lower - spacer;
 992         } else {
 993                 lower = 0;
 994         }
 995
 996         pos = (nframes_t) floor (lower);
 997
 998         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * timecode_nmarks);
 999         switch (timecode_ruler_scale) {
1000         case timecode_show_bits:
1001
1002                 // Find timecode time of this sample (pos) with subframe accuracy
1003                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, true /* use_subframes */ );
1004
1005                 for (n = 0; n < timecode_nmarks; n++) {
1006                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, true /* use_subframes */ );
1007                         if ((timecode.subframes % timecode_mark_modulo) == 0) {
1008                                 if (timecode.subframes == 0) {
1009                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1010                                         snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1011                                 } else {
1012                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1013                                         snprintf (buf, sizeof(buf), ".%02u", timecode.subframes);
1014                                 }
1015                         } else {
1016                                 snprintf (buf, sizeof(buf)," ");
1017                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1018
1019                         }
1020                         (*marks)[n].label = g_strdup (buf);
1021                         (*marks)[n].position = pos;
1022
1023                         // Increment subframes by one
1024                         Timecode::increment_subframes( timecode, _session->config.get_subframes_per_frame() );
1025                 }
1026           break;
1027         case timecode_show_seconds:
1028                 // Find timecode time of this sample (pos)
1029                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, false /* use_subframes */ );
1030                 // Go to next whole second down
1031                 Timecode::seconds_floor( timecode );
1032
1033                 for (n = 0; n < timecode_nmarks; n++) {
1034                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, false /* use_subframes */ );
1035                         if ((timecode.seconds % timecode_mark_modulo) == 0) {
1036                                 if (timecode.seconds == 0) {
1037                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1038                                         (*marks)[n].position = pos;
1039                                 } else {
1040                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1041                                         (*marks)[n].position = pos;
1042                                 }
1043                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1044                         } else {
1045                                 snprintf (buf, sizeof(buf)," ");
1046                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1047                                 (*marks)[n].position = pos;
1048
1049                         }
1050                         (*marks)[n].label = g_strdup (buf);
1051                         Timecode::increment_seconds( timecode, _session->config.get_subframes_per_frame() );
1052                 }
1053           break;
1054         case timecode_show_minutes:
1055                 // Find timecode time of this sample (pos)
1056                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, false /* use_subframes */ );
1057                 // Go to next whole minute down
1058                 Timecode::minutes_floor( timecode );
1059
1060                 for (n = 0; n < timecode_nmarks; n++) {
1061                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, false /* use_subframes */ );
1062                         if ((timecode.minutes % timecode_mark_modulo) == 0) {
1063                                 if (timecode.minutes == 0) {
1064                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1065                                 } else {
1066                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1067                                 }
1068                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1069                         } else {
1070                                 snprintf (buf, sizeof(buf)," ");
1071                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1072
1073                         }
1074                         (*marks)[n].label = g_strdup (buf);
1075                         (*marks)[n].position = pos;
1076                         Timecode::increment_minutes( timecode, _session->config.get_subframes_per_frame() );
1077                 }
1078
1079           break;
1080         case timecode_show_hours:
1081                 // Find timecode time of this sample (pos)
1082                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, false /* use_subframes */ );
1083                 // Go to next whole hour down
1084                 Timecode::hours_floor( timecode );
1085
1086                 for (n = 0; n < timecode_nmarks; n++) {
1087                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, false /* use_subframes */ );
1088                         if ((timecode.hours % timecode_mark_modulo) == 0) {
1089                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1090                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1091                         } else {
1092                                 snprintf (buf, sizeof(buf)," ");
1093                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1094
1095                         }
1096                         (*marks)[n].label = g_strdup (buf);
1097                         (*marks)[n].position = pos;
1098
1099                         Timecode::increment_hours( timecode, _session->config.get_subframes_per_frame() );
1100                 }
1101           break;
1102         case timecode_show_frames:
1103                 // Find timecode time of this sample (pos)
1104                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, false /* use_subframes */ );
1105                 // Go to next whole frame down
1106                 Timecode::frames_floor( timecode );
1107
1108                 for (n = 0; n < timecode_nmarks; n++) {
1109                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, false /* use_subframes */ );
1110                         if ((timecode.frames % timecode_mark_modulo) == 0)  {
1111                                 if (timecode.frames == 0) {
1112                                   (*marks)[n].style = GtkCustomRulerMarkMajor;
1113                                 } else {
1114                                   (*marks)[n].style = GtkCustomRulerMarkMinor;
1115                                 }
1116                                 (*marks)[n].position = pos;
1117                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1118                         } else {
1119                                 snprintf (buf, sizeof(buf)," ");
1120                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1121                                 (*marks)[n].position = pos;
1122
1123                         }
1124                         (*marks)[n].label = g_strdup (buf);
1125                         Timecode::increment( timecode, _session->config.get_subframes_per_frame() );
1126                 }
1127
1128           break;
1129         }
1130
1131         return timecode_nmarks;
1132 }
1133
1134
1135 void
1136 Editor::compute_bbt_ruler_scale (nframes64_t lower, nframes64_t upper)
1137 {
1138         if (_session == 0) {
1139                 return;
1140         }
1141         TempoMap::BBTPointList::iterator i;
1142         BBT_Time lower_beat, upper_beat; // the beats at each end of the ruler
1143
1144         _session->bbt_time((jack_nframes_t) lower, lower_beat);
1145         _session->bbt_time((jack_nframes_t) upper, upper_beat);
1146         uint32_t beats = 0;
1147
1148         bbt_accent_modulo = 1;
1149         bbt_bar_helper_on = false;
1150         bbt_bars = 0;
1151         bbt_nmarks = 1;
1152
1153         bbt_ruler_scale =  bbt_over;
1154
1155         switch (_snap_type) {
1156         case SnapToBeatDiv3:
1157                 bbt_beat_subdivision = 3;
1158                 break;
1159         case SnapToBeatDiv4:
1160                 bbt_beat_subdivision = 4;
1161                 break;
1162         case SnapToBeatDiv8:
1163                 bbt_beat_subdivision = 8;
1164                 bbt_accent_modulo = 2;
1165                 break;
1166         case SnapToBeatDiv16:
1167                 bbt_beat_subdivision = 16;
1168                 bbt_accent_modulo = 4;
1169                 break;
1170         case SnapToBeatDiv32:
1171                 bbt_beat_subdivision = 32;
1172                 bbt_accent_modulo = 8;
1173                 break;
1174         case SnapToBeatDiv28:
1175                 bbt_beat_subdivision = 28;
1176                 bbt_accent_modulo = 7;
1177                 break;
1178         case SnapToBeatDiv24:
1179                 bbt_beat_subdivision = 24;
1180                 bbt_accent_modulo = 6;
1181                 break;
1182         case SnapToBeatDiv14:
1183                 bbt_beat_subdivision = 14;
1184                 bbt_accent_modulo = 3; // XXX YIKES!
1185                 break;
1186         case SnapToBeatDiv12:
1187                 bbt_beat_subdivision = 12;
1188                 bbt_accent_modulo = 3;
1189                 break;
1190         case SnapToBeatDiv10:
1191                 bbt_beat_subdivision = 10;
1192                 bbt_accent_modulo = 2; // XXX YIKES
1193                 break;
1194         case SnapToBeatDiv7:
1195                 bbt_beat_subdivision = 7;
1196                 bbt_accent_modulo = 2; // XXX YIKES
1197                 break;
1198         case SnapToBeatDiv6:
1199                 bbt_beat_subdivision = 6;
1200                 bbt_accent_modulo = 2; // XXX YIKES
1201                 break;
1202         case SnapToBeatDiv5:
1203                 bbt_beat_subdivision = 5;
1204                 bbt_accent_modulo = 2; // XXX YIKES
1205                 break;
1206         default:
1207                 bbt_beat_subdivision = 4;
1208                 break;
1209         }
1210
1211         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1212                 return;
1213         }
1214
1215         i = current_bbt_points->end();
1216         i--;
1217         if ((*i).beat >= (*current_bbt_points->begin()).beat) {
1218           bbt_bars = (*i).bar - (*current_bbt_points->begin()).bar;
1219         } else {
1220           bbt_bars = (*i).bar - (*current_bbt_points->begin()).bar - 1;
1221         }
1222         beats = current_bbt_points->size() - bbt_bars;
1223
1224         /*Only show the bar helper if there aren't many bars on the screen */
1225         if ((bbt_bars < 2) || (beats < 5)) {
1226                 bbt_bar_helper_on = true;
1227         }
1228
1229         if (bbt_bars > 8192) {
1230           bbt_ruler_scale =  bbt_over;
1231         } else if (bbt_bars > 1024) {
1232           bbt_ruler_scale = bbt_show_64;
1233         } else if (bbt_bars > 256) {
1234           bbt_ruler_scale = bbt_show_16;
1235         } else if (bbt_bars > 64) {
1236           bbt_ruler_scale = bbt_show_4;
1237         } else if (bbt_bars > 10) {
1238           bbt_ruler_scale =  bbt_show_1;
1239         } else if (bbt_bars > 2) {
1240           bbt_ruler_scale =  bbt_show_beats;
1241         } else  if (bbt_bars > 0) {
1242           bbt_ruler_scale =  bbt_show_ticks;
1243         } else {
1244           bbt_ruler_scale =  bbt_show_ticks_detail;
1245         }
1246
1247         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)) {
1248                 bbt_ruler_scale =  bbt_show_ticks_super_detail;
1249         }
1250 }
1251
1252 gint
1253 Editor::metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble /*upper*/, gint /*maxchars*/)
1254 {
1255         if (_session == 0) {
1256                 return 0;
1257         }
1258
1259         TempoMap::BBTPointList::iterator i;
1260
1261         char buf[64];
1262         gint  n = 0;
1263         nframes64_t pos;
1264         BBT_Time next_beat;
1265         nframes64_t next_beat_pos;
1266         uint32_t beats = 0;
1267
1268         uint32_t tick = 0;
1269         uint32_t skip;
1270         uint32_t t;
1271         nframes64_t frame_skip;
1272         double frame_skip_error;
1273         double bbt_position_of_helper;
1274         double accumulated_error;
1275         bool i_am_accented = false;
1276         bool helper_active = false;
1277
1278         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1279                 return 0;
1280         }
1281
1282         switch (bbt_ruler_scale) {
1283
1284         case bbt_show_beats:
1285                 beats = current_bbt_points->size();
1286                 bbt_nmarks = beats + 2;
1287
1288                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1289
1290                 (*marks)[0].label = g_strdup(" ");
1291                 (*marks)[0].position = lower;
1292                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1293
1294                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1295                         if  ((*i).type != TempoMap::Beat) {
1296                                 continue;
1297                         }
1298                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1299                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1300                                 (*marks)[0].label = g_strdup (buf);
1301                                 helper_active = true;
1302                         } else {
1303
1304                                 if ((*i).beat == 1) {
1305                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1306                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1307                                 } else if (((*i).beat % 2 == 1)) {
1308                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1309                                         snprintf (buf, sizeof(buf), " ");
1310                                 } else {
1311                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1312                                         snprintf (buf, sizeof(buf), " ");
1313                                 }
1314                                 (*marks)[n].label =  g_strdup (buf);
1315                                 (*marks)[n].position = (*i).frame;
1316                                 n++;
1317                         }
1318                 }
1319                 break;
1320
1321         case bbt_show_ticks:
1322
1323                 beats = current_bbt_points->size();
1324                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1325
1326                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1327                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1328
1329                 (*marks)[0].label = g_strdup(" ");
1330                 (*marks)[0].position = lower;
1331                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1332
1333                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1334                         if  ((*i).type != TempoMap::Beat) {
1335                                 continue;
1336                         }
1337                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1338                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1339                                 (*marks)[0].label = g_strdup (buf);
1340                                 helper_active = true;
1341                         } else {
1342
1343                                 if ((*i).beat == 1) {
1344                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1345                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1346                                 } else {
1347                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1348                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1349                                 }
1350                                 if (((*i).frame < bbt_position_of_helper) && helper_active) {
1351                                         snprintf (buf, sizeof(buf), " ");
1352                                 }
1353                                 (*marks)[n].label =  g_strdup (buf);
1354                                 (*marks)[n].position = (*i).frame;
1355                                 n++;
1356                         }
1357
1358                         /* Add the tick marks */
1359
1360                         /* Find the next beat */
1361                         next_beat.beats = (*i).beat;
1362                         next_beat.bars = (*i).bar;
1363                         next_beat.ticks = 0;
1364
1365                         if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1366                                   next_beat.beats += 1;
1367                         } else {
1368                                   next_beat.bars += 1;
1369                                   next_beat.beats = 1;
1370                         }
1371
1372                         next_beat_pos = _session->tempo_map().frame_time(next_beat);
1373
1374                         frame_skip = (nframes64_t) floor (frame_skip_error = (_session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1375                         frame_skip_error -= frame_skip;
1376                         skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1377
1378                         pos = (*i).frame + frame_skip;
1379                         accumulated_error = frame_skip_error;
1380
1381                         tick = skip;
1382
1383                         for (t = 0; (tick < Meter::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1384
1385                                 if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1386                                         i_am_accented = true;
1387                                 }
1388
1389                                 snprintf (buf, sizeof(buf), " ");
1390                                 (*marks)[n].label = g_strdup (buf);
1391
1392                                 /* Error compensation for float to nframes64_t*/
1393                                 accumulated_error += frame_skip_error;
1394                                 if (accumulated_error > 1) {
1395                                         pos += 1;
1396                                         accumulated_error -= 1.0f;
1397                                 }
1398
1399                                 (*marks)[n].position = pos;
1400
1401                                 if ((bbt_beat_subdivision > 4) && i_am_accented) {
1402                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1403                                 } else {
1404                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1405                                 }
1406                                 i_am_accented = false;
1407                                 n++;
1408                         }
1409                 }
1410
1411           break;
1412
1413         case bbt_show_ticks_detail:
1414
1415                 beats = current_bbt_points->size();
1416                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1417
1418                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1419                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1420
1421                 (*marks)[0].label = g_strdup(" ");
1422                 (*marks)[0].position = lower;
1423                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1424
1425                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1426                         if  ((*i).type != TempoMap::Beat) {
1427                                 continue;
1428                         }
1429                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1430                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1431                                 (*marks)[0].label = g_strdup (buf);
1432                                 helper_active = true;
1433                         } else {
1434
1435                                 if ((*i).beat == 1) {
1436                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1437                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1438                                 } else {
1439                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1440                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1441                                 }
1442                                 if (((*i).frame < bbt_position_of_helper) && helper_active) {
1443                                         snprintf (buf, sizeof(buf), " ");
1444                                 }
1445                                 (*marks)[n].label =  g_strdup (buf);
1446                                 (*marks)[n].position = (*i).frame;
1447                                 n++;
1448                         }
1449
1450                         /* Add the tick marks */
1451
1452                         /* Find the next beat */
1453
1454                         next_beat.beats = (*i).beat;
1455                         next_beat.bars = (*i).bar;
1456
1457                         if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1458                                   next_beat.beats += 1;
1459                         } else {
1460                                   next_beat.bars += 1;
1461                                   next_beat.beats = 1;
1462                         }
1463
1464                         next_beat_pos = _session->tempo_map().frame_time(next_beat);
1465
1466                         frame_skip = (nframes64_t) floor (frame_skip_error = (_session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1467                         frame_skip_error -= frame_skip;
1468                         skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1469
1470                         pos = (*i).frame + frame_skip;
1471                         accumulated_error = frame_skip_error;
1472
1473                         tick = skip;
1474
1475                         for (t = 0; (tick < Meter::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1476
1477                                 if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1478                                         i_am_accented = true;
1479                                 }
1480
1481                                 if (i_am_accented && (pos > bbt_position_of_helper)){
1482                                         snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1483                                 } else {
1484                                         snprintf (buf, sizeof(buf), " ");
1485                                 }
1486
1487                                 (*marks)[n].label = g_strdup (buf);
1488
1489                                 /* Error compensation for float to nframes64_t*/
1490                                 accumulated_error += frame_skip_error;
1491                                 if (accumulated_error > 1) {
1492                                         pos += 1;
1493                                         accumulated_error -= 1.0f;
1494                                 }
1495
1496                                 (*marks)[n].position = pos;
1497
1498                                 if ((bbt_beat_subdivision > 4) && i_am_accented) {
1499                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1500                                 } else {
1501                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1502                                 }
1503                                 i_am_accented = false;
1504                                 n++;
1505                         }
1506                 }
1507
1508           break;
1509
1510         case bbt_show_ticks_super_detail:
1511
1512                 beats = current_bbt_points->size();
1513                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1514
1515                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1516                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1517
1518                 (*marks)[0].label = g_strdup(" ");
1519                 (*marks)[0].position = lower;
1520                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1521
1522                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1523                         if  ((*i).type != TempoMap::Beat) {
1524                                   continue;
1525                         }
1526                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1527                                   snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1528                                   (*marks)[0].label = g_strdup (buf);
1529                                   helper_active = true;
1530                         } else {
1531
1532                                   if ((*i).beat == 1) {
1533                                           (*marks)[n].style = GtkCustomRulerMarkMajor;
1534                                           snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1535                                   } else {
1536                                           (*marks)[n].style = GtkCustomRulerMarkMinor;
1537                                           snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1538                                   }
1539                                   if (((*i).frame < bbt_position_of_helper) && helper_active) {
1540                                           snprintf (buf, sizeof(buf), " ");
1541                                   }
1542                                   (*marks)[n].label =  g_strdup (buf);
1543                                   (*marks)[n].position = (*i).frame;
1544                                   n++;
1545                         }
1546
1547                         /* Add the tick marks */
1548
1549                         /* Find the next beat */
1550
1551                         next_beat.beats = (*i).beat;
1552                         next_beat.bars = (*i).bar;
1553
1554                         if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1555                                   next_beat.beats += 1;
1556                         } else {
1557                                   next_beat.bars += 1;
1558                                   next_beat.beats = 1;
1559                         }
1560
1561                         next_beat_pos = _session->tempo_map().frame_time(next_beat);
1562
1563                         frame_skip = (nframes64_t) floor (frame_skip_error = (_session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1564                         frame_skip_error -= frame_skip;
1565                         skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1566
1567                         pos = (*i).frame + frame_skip;
1568                         accumulated_error = frame_skip_error;
1569
1570                         tick = skip;
1571
1572                         for (t = 0; (tick < Meter::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1573
1574                                   if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1575                                           i_am_accented = true;
1576                                   }
1577
1578                                   if (pos > bbt_position_of_helper) {
1579                                           snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1580                                   } else {
1581                                           snprintf (buf, sizeof(buf), " ");
1582                                   }
1583
1584                                   (*marks)[n].label = g_strdup (buf);
1585
1586                                   /* Error compensation for float to nframes64_t*/
1587                                   accumulated_error += frame_skip_error;
1588                                   if (accumulated_error > 1) {
1589                                           pos += 1;
1590                                           accumulated_error -= 1.0f;
1591                                   }
1592
1593                                   (*marks)[n].position = pos;
1594
1595                                   if ((bbt_beat_subdivision > 4) && i_am_accented) {
1596                                           (*marks)[n].style = GtkCustomRulerMarkMinor;
1597                                   } else {
1598                                           (*marks)[n].style = GtkCustomRulerMarkMicro;
1599                                   }
1600                                   i_am_accented = false;
1601                                   n++;
1602                         }
1603                 }
1604
1605           break;
1606
1607         case bbt_over:
1608                         bbt_nmarks = 1;
1609                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1610                         snprintf (buf, sizeof(buf), "cannot handle %" PRIu32 " bars", bbt_bars );
1611                         (*marks)[0].style = GtkCustomRulerMarkMajor;
1612                         (*marks)[0].label = g_strdup (buf);
1613                         (*marks)[0].position = lower;
1614                         n = 1;
1615
1616           break;
1617
1618         case bbt_show_64:
1619                         bbt_nmarks = (gint) (bbt_bars / 64) + 1;
1620                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1621                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; i++) {
1622                                 if ((*i).type == TempoMap::Bar)  {
1623                                         if ((*i).bar % 64 == 1) {
1624                                                 if ((*i).bar % 256 == 1) {
1625                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1626                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1627                                                 } else {
1628                                                         snprintf (buf, sizeof(buf), " ");
1629                                                         if ((*i).bar % 256 == 129)  {
1630                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1631                                                         } else {
1632                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1633                                                         }
1634                                                 }
1635                                                 (*marks)[n].label = g_strdup (buf);
1636                                                 (*marks)[n].position = (*i).frame;
1637                                                 n++;
1638                                         }
1639                                 }
1640                         }
1641                         break;
1642
1643         case bbt_show_16:
1644                 bbt_nmarks = (bbt_bars / 16) + 1;
1645                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1646                 for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; i++) {
1647                         if ((*i).type == TempoMap::Bar)  {
1648                           if ((*i).bar % 16 == 1) {
1649                                 if ((*i).bar % 64 == 1) {
1650                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1651                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1652                                 } else {
1653                                         snprintf (buf, sizeof(buf), " ");
1654                                         if ((*i).bar % 64 == 33)  {
1655                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1656                                         } else {
1657                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1658                                         }
1659                                 }
1660                                 (*marks)[n].label = g_strdup (buf);
1661                                 (*marks)[n].position = (*i).frame;
1662                                 n++;
1663                           }
1664                         }
1665                 }
1666           break;
1667
1668         case bbt_show_4:
1669                 bbt_nmarks = (bbt_bars / 4) + 1;
1670                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1671                 for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; ++i) {
1672                         if ((*i).type == TempoMap::Bar)  {
1673                           if ((*i).bar % 4 == 1) {
1674                                 if ((*i).bar % 16 == 1) {
1675                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1676                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1677                                 } else {
1678                                         snprintf (buf, sizeof(buf), " ");
1679                                         if ((*i).bar % 16 == 9)  {
1680                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1681                                         } else {
1682                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1683                                         }
1684                                 }
1685                                 (*marks)[n].label = g_strdup (buf);
1686                                 (*marks)[n].position = (*i).frame;
1687                                 n++;
1688                           }
1689                         }
1690                 }
1691           break;
1692
1693         case bbt_show_1:
1694   //    default:
1695                 bbt_nmarks = bbt_bars + 2;
1696                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks );
1697                 for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; i++) {
1698                         if ((*i).type == TempoMap::Bar)  {
1699                           if ((*i).bar % 4 == 1) {
1700                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1701                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1702                           } else {
1703                                 snprintf (buf, sizeof(buf), " ");
1704                                 if ((*i).bar % 4 == 3)  {
1705                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1706                                 } else {
1707                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1708                                 }
1709                           }
1710                         (*marks)[n].label = g_strdup (buf);
1711                         (*marks)[n].position = (*i).frame;
1712                         n++;
1713                         }
1714                 }
1715
1716         break;
1717
1718         }
1719
1720         return n; //return the actual number of marks made, since we might have skipped some from fractional time signatures
1721
1722 }
1723
1724 gint
1725 Editor::metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint /*maxchars*/)
1726 {
1727         nframes64_t mark_interval;
1728         nframes64_t pos;
1729         nframes64_t ilower = (nframes64_t) floor (lower);
1730         nframes64_t iupper = (nframes64_t) floor (upper);
1731         gchar buf[16];
1732         gint nmarks;
1733         gint n;
1734
1735         if (_session == 0) {
1736                 return 0;
1737         }
1738
1739         mark_interval = (iupper - ilower) / 5;
1740         if (mark_interval > _session->frame_rate()) {
1741                 mark_interval -= mark_interval % _session->frame_rate();
1742         } else {
1743                 mark_interval = _session->frame_rate() / (_session->frame_rate() / mark_interval ) ;
1744         }
1745         nmarks = 5;
1746         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1747         for (n = 0, pos = ilower; n < nmarks; pos += mark_interval, ++n) {
1748                 snprintf (buf, sizeof(buf), "%" PRIi64, pos);
1749                 (*marks)[n].label = g_strdup (buf);
1750                 (*marks)[n].position = pos;
1751                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1752         }
1753
1754         return nmarks;
1755 }
1756
1757 static void
1758 sample_to_clock_parts ( nframes64_t sample,
1759                         nframes64_t sample_rate,
1760                         long *hrs_p,
1761                         long *mins_p,
1762                         long *secs_p,
1763                         long *millisecs_p)
1764
1765 {
1766         nframes64_t left;
1767         long hrs;
1768         long mins;
1769         long secs;
1770         long millisecs;
1771
1772         left = sample;
1773         hrs = left / (sample_rate * 60 * 60);
1774         left -= hrs * sample_rate * 60 * 60;
1775         mins = left / (sample_rate * 60);
1776         left -= mins * sample_rate * 60;
1777         secs = left / sample_rate;
1778         left -= secs * sample_rate;
1779         millisecs = left * 1000 / sample_rate;
1780
1781         *millisecs_p = millisecs;
1782         *secs_p = secs;
1783         *mins_p = mins;
1784         *hrs_p = hrs;
1785
1786         return;
1787 }
1788
1789 void
1790 Editor::set_minsec_ruler_scale (gdouble lower, gdouble upper)
1791 {
1792         nframes64_t range;
1793         nframes64_t fr;
1794         nframes64_t spacer;
1795
1796         if (_session == 0) {
1797                 return;
1798         }
1799
1800         fr = _session->frame_rate();
1801
1802         /* to prevent 'flashing' */
1803         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
1804                 lower -= spacer;
1805         } else {
1806                 lower = 0;
1807         }
1808         upper += spacer;
1809         range = (nframes64_t) (upper - lower);
1810
1811         if (range <  (fr / 50)) {
1812                 minsec_mark_interval =  fr / 1000; /* show 1/1000 seconds */
1813                 minsec_ruler_scale = minsec_show_frames;
1814                 minsec_mark_modulo = 10;
1815         } else if (range <= (fr / 10)) { /* 0-0.1 second */
1816                 minsec_mark_interval = fr / 1000; /* show 1/1000 seconds */
1817                 minsec_ruler_scale = minsec_show_frames;
1818                 minsec_mark_modulo = 10;
1819         } else if (range <= (fr / 2)) { /* 0-0.5 second */
1820                 minsec_mark_interval = fr / 100;  /* show 1/100 seconds */
1821                 minsec_ruler_scale = minsec_show_frames;
1822                 minsec_mark_modulo = 100;
1823         } else if (range <= fr) { /* 0-1 second */
1824                 minsec_mark_interval = fr / 10;  /* show 1/10 seconds */
1825                 minsec_ruler_scale = minsec_show_frames;
1826                 minsec_mark_modulo = 200;
1827         } else if (range <= 2 * fr) { /* 1-2 seconds */
1828                 minsec_mark_interval = fr / 10; /* show 1/10 seconds */
1829                 minsec_ruler_scale = minsec_show_frames;
1830                 minsec_mark_modulo = 500;
1831         } else if (range <= 8 * fr) { /* 2-5 seconds */
1832                 minsec_mark_interval =  fr / 5; /* show 2 seconds */
1833                 minsec_ruler_scale = minsec_show_frames;
1834                 minsec_mark_modulo = 1000;
1835         } else if (range <= 16 * fr) { /* 8-16 seconds */
1836                 minsec_mark_interval =  fr; /* show 1 seconds */
1837                 minsec_ruler_scale = minsec_show_seconds;
1838                 minsec_mark_modulo = 2;
1839         } else if (range <= 30 * fr) { /* 10-30 seconds */
1840                 minsec_mark_interval =  fr; /* show 1 seconds */
1841                 minsec_ruler_scale = minsec_show_seconds;
1842                 minsec_mark_modulo = 5;
1843         } else if (range <= 60 * fr) { /* 30-60 seconds */
1844                 minsec_mark_interval = fr; /* show 1 seconds */
1845                 minsec_ruler_scale = minsec_show_seconds;
1846                 minsec_mark_modulo = 5;
1847         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1848                 minsec_mark_interval = 5 * fr; /* show 5 seconds */
1849                 minsec_ruler_scale = minsec_show_seconds;
1850                 minsec_mark_modulo = 3;
1851         } else if (range <= 4 * 60 * fr) { /* 4 minutes */
1852                 minsec_mark_interval = 5 * fr; /* show 10 seconds */
1853                 minsec_ruler_scale = minsec_show_seconds;
1854                 minsec_mark_modulo = 30;
1855         } else if (range <= 10 * 60 * fr) { /* 10 minutes */
1856                 minsec_mark_interval = 30 * fr; /* show 30 seconds */
1857                 minsec_ruler_scale = minsec_show_seconds;
1858                 minsec_mark_modulo = 120;
1859         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1860                 minsec_mark_interval =  60 * fr; /* show 1 minute */
1861                 minsec_ruler_scale = minsec_show_minutes;
1862                 minsec_mark_modulo = 5;
1863         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1864                 minsec_mark_interval = 2 * 60 * fr; /* show 2 minutes */
1865                 minsec_ruler_scale = minsec_show_minutes;
1866                 minsec_mark_modulo = 10;
1867         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1868                 minsec_mark_interval = 5 * 60 * fr; /* show 10 minutes */
1869                 minsec_ruler_scale = minsec_show_minutes;
1870                 minsec_mark_modulo = 30;
1871         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1872                 minsec_mark_interval = 20 * 60 * fr; /* show 20 minutes */
1873                 minsec_ruler_scale = minsec_show_minutes;
1874                 minsec_mark_modulo = 60;
1875         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1876                 minsec_mark_interval =  60 * 60 * fr; /* show 60 minutes */
1877                 minsec_ruler_scale = minsec_show_hours;
1878                 minsec_mark_modulo = 2;
1879         } else {
1880
1881                 /* not possible if nframes64_t is a 32 bit quantity */
1882
1883                 minsec_mark_interval = 4 * 60 * 60 * fr; /* show 4 hrs */
1884         }
1885         minsec_nmarks = 2 + (range / minsec_mark_interval);
1886 }
1887
1888 gint
1889 Editor::metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble /*upper*/, gint /*maxchars*/)
1890 {
1891         nframes64_t pos;
1892         nframes64_t spacer;
1893         long hrs, mins, secs, millisecs;
1894         gchar buf[16];
1895         gint n;
1896
1897         if (_session == 0) {
1898                 return 0;
1899         }
1900
1901         /* to prevent 'flashing' */
1902         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
1903                 lower = lower - spacer;
1904         } else {
1905                 lower = 0;
1906         }
1907
1908         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * minsec_nmarks);
1909         pos = ((((nframes64_t) floor(lower)) + (minsec_mark_interval/2))/minsec_mark_interval) * minsec_mark_interval;
1910         switch (minsec_ruler_scale) {
1911         case minsec_show_seconds:
1912                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1913                         sample_to_clock_parts (pos, _session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1914                         if (secs % minsec_mark_modulo == 0) {
1915                                 if (secs == 0) {
1916                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1917                                 } else {
1918                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1919                                 }
1920                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1921                         } else {
1922                                 snprintf (buf, sizeof(buf), " ");
1923                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1924                         }
1925                         (*marks)[n].label = g_strdup (buf);
1926                         (*marks)[n].position = pos;
1927                 }
1928           break;
1929         case minsec_show_minutes:
1930                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1931                         sample_to_clock_parts (pos, _session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1932                         if (mins % minsec_mark_modulo == 0) {
1933                                 if (mins == 0) {
1934                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1935                                 } else {
1936                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1937                                 }
1938                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1939                         } else {
1940                                 snprintf (buf, sizeof(buf), " ");
1941                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1942                         }
1943                         (*marks)[n].label = g_strdup (buf);
1944                         (*marks)[n].position = pos;
1945                 }
1946           break;
1947         case minsec_show_hours:
1948                  for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1949                         sample_to_clock_parts (pos, _session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1950                         if (hrs % minsec_mark_modulo == 0) {
1951                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1952                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1953                         } else {
1954                                 snprintf (buf, sizeof(buf), " ");
1955                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1956                         }
1957                         (*marks)[n].label = g_strdup (buf);
1958                         (*marks)[n].position = pos;
1959                 }
1960               break;
1961         case minsec_show_frames:
1962                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1963                         sample_to_clock_parts (pos, _session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1964                         if (millisecs % minsec_mark_modulo == 0) {
1965                                 if (secs == 0) {
1966                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1967                                 } else {
1968                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1969                                 }
1970                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1971                         } else {
1972                                 snprintf (buf, sizeof(buf), " ");
1973                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1974                         }
1975                         (*marks)[n].label = g_strdup (buf);
1976                         (*marks)[n].position = pos;
1977                 }
1978           break;
1979         }
1980
1981         return minsec_nmarks;
1982 }