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