gtk2_ardour/editor_rulers.cc

   1 /*
   2     Copyright (C) 2000 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <cstdio> // for sprintf, grrr
  21 #include <cmath>
  22
  23 #include <string>
  24
  25 #include <gtk/gtkaction.h>
  26
  27 #include <ardour/tempo.h>
  28 #include <ardour/profile.h>
  29 #include <gtkmm2ext/gtk_ui.h>
  30
  31 #include "editor.h"
  32 #include "editing.h"
  33 #include "actions.h"
  34 #include "gtk-custom-hruler.h"
  35 #include "gui_thread.h"
  36 #include "time_axis_view.h"
  37
  38 #include "i18n.h"
  39
  40 using namespace sigc;
  41 using namespace ARDOUR;
  42 using namespace PBD;
  43 using namespace Gtk;
  44 using namespace Editing;
  45
  46 Editor *Editor::ruler_editor;
  47
  48 /* the order here must match the "metric" enums in editor.h */
  49
  50 GtkCustomMetric Editor::ruler_metrics[4] = {
  51         {1, Editor::_metric_get_smpte },
  52         {1, Editor::_metric_get_bbt },
  53         {1, Editor::_metric_get_frames },
  54         {1, Editor::_metric_get_minsec }
  55 };
  56
  57 void
  58 Editor::initialize_rulers ()
  59 {
  60         ruler_editor = this;
  61         ruler_grabbed_widget = 0;
  62
  63         _ruler_separator = new Gtk::HSeparator();
  64         _ruler_separator->set_size_request(-1, 2);
  65         _ruler_separator->set_name("TimebarPadding");
  66         _ruler_separator->show();
  67
  68         _minsec_ruler = gtk_custom_hruler_new ();
  69         minsec_ruler = Glib::wrap (_minsec_ruler);
  70         minsec_ruler->set_name ("MinSecRuler");
  71         minsec_ruler->set_size_request (-1, (int)timebar_height);
  72         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
  73         minsec_ruler->hide ();
  74         minsec_ruler->set_no_show_all();
  75
  76         _smpte_ruler = gtk_custom_hruler_new ();
  77         smpte_ruler = Glib::wrap (_smpte_ruler);
  78         smpte_ruler->set_name ("SMPTERuler");
  79         smpte_ruler->set_size_request (-1, (int)timebar_height);
  80         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
  81         smpte_ruler->hide ();
  82         smpte_ruler->set_no_show_all();
  83         smpte_nmarks = 0;
  84
  85         _bbt_ruler = gtk_custom_hruler_new ();
  86         bbt_ruler = Glib::wrap (_bbt_ruler);
  87         bbt_ruler->set_name ("BBTRuler");
  88         bbt_ruler->set_size_request (-1, (int)timebar_height);
  89         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
  90         bbt_ruler->hide ();
  91         bbt_ruler->set_no_show_all();
  92         bbt_nmarks = 0;
  93
  94         _frames_ruler = gtk_custom_hruler_new ();
  95         frames_ruler = Glib::wrap (_frames_ruler);
  96         frames_ruler->set_name ("FramesRuler");
  97         frames_ruler->set_size_request (-1, (int)timebar_height);
  98         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
  99         frames_ruler->hide ();
 100         frames_ruler->set_no_show_all();
 101
 102         _bbt_ruler = gtk_custom_hruler_new ();
 103         bbt_ruler = Glib::wrap (_bbt_ruler);
 104         bbt_ruler->set_name ("BBTRuler");
 105         bbt_ruler->set_size_request (-1, (int)timebar_height);
 106         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 107         bbt_ruler->hide ();
 108         bbt_ruler->set_no_show_all();
 109         minsec_ruler->hide ();
 110         minsec_ruler->set_no_show_all();
 111         minsec_nmarks = 0;
 112
 113         using namespace Box_Helpers;
 114         BoxList & ruler_lab_children =  ruler_label_vbox.children();
 115         BoxList & ruler_children =  time_canvas_vbox.children();
 116         BoxList & lab_children =  time_button_vbox.children();
 117
 118         BoxList::iterator canvaspos = ruler_children.begin();
 119
 120         lab_children.push_back (Element(meter_label, PACK_SHRINK, PACK_START));
 121         lab_children.push_back (Element(tempo_label, PACK_SHRINK, PACK_START));
 122         lab_children.push_back (Element(range_mark_label, PACK_SHRINK, PACK_START));
 123         lab_children.push_back (Element(transport_mark_label, PACK_SHRINK, PACK_START));
 124         lab_children.push_back (Element(cd_mark_label, PACK_SHRINK, PACK_START));
 125         lab_children.push_back (Element(mark_label, PACK_SHRINK, PACK_START));
 126
 127         ruler_lab_children.push_back (Element(minsec_label, PACK_SHRINK, PACK_START));
 128         ruler_children.insert (canvaspos, Element(*minsec_ruler, PACK_SHRINK, PACK_START));
 129         ruler_lab_children.push_back (Element(smpte_label, PACK_SHRINK, PACK_START));
 130         ruler_children.insert (canvaspos, Element(*smpte_ruler, PACK_SHRINK, PACK_START));
 131         ruler_lab_children.push_back (Element(frame_label, PACK_SHRINK, PACK_START));
 132         ruler_children.insert (canvaspos, Element(*frames_ruler, PACK_SHRINK, PACK_START));
 133         ruler_lab_children.push_back (Element(bbt_label, PACK_SHRINK, PACK_START));
 134         ruler_children.insert (canvaspos, Element(*bbt_ruler, PACK_SHRINK, PACK_START));
 135
 136         smpte_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 137         bbt_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 138         frames_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 139         minsec_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 140
 141         smpte_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 142         bbt_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 143         frames_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 144         minsec_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 145
 146         smpte_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 147         bbt_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 148         frames_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 149         minsec_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 150
 151         smpte_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 152         bbt_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 153         frames_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 154         minsec_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 155
 156         smpte_ruler->signal_scroll_event().connect (mem_fun(*this, &Editor::ruler_scroll));
 157         bbt_ruler->signal_scroll_event().connect (mem_fun(*this, &Editor::ruler_scroll));
 158         frames_ruler->signal_scroll_event().connect (mem_fun(*this, &Editor::ruler_scroll));
 159         minsec_ruler->signal_scroll_event().connect (mem_fun(*this, &Editor::ruler_scroll));
 160
 161         visible_timebars = 0; /*this will be changed below */
 162         ruler_pressed_button = 0;
 163         canvas_timebars_vsize = 0;
 164 }
 165
 166 bool
 167 Editor::ruler_scroll (GdkEventScroll* event)
 168 {
 169         nframes64_t xdelta;
 170         int direction = event->direction;
 171         bool handled = false;
 172
 173         switch (direction) {
 174         case GDK_SCROLL_UP:
 175                 temporal_zoom_step (true);
 176                 handled = true;
 177                 break;
 178
 179         case GDK_SCROLL_DOWN:
 180                 temporal_zoom_step (false);
 181                 handled = true;
 182                 break;
 183
 184         case GDK_SCROLL_LEFT:
 185                 xdelta = (current_page_frames() / 2);
 186                 if (leftmost_frame > xdelta) {
 187                         reset_x_origin (leftmost_frame - xdelta);
 188                 } else {
 189                         reset_x_origin (0);
 190                 }
 191                 handled = true;
 192                 break;
 193
 194         case GDK_SCROLL_RIGHT:
 195                 xdelta = (current_page_frames() / 2);
 196                 if (max_frames - xdelta > leftmost_frame) {
 197                         reset_x_origin (leftmost_frame + xdelta);
 198                 } else {
 199                         reset_x_origin (max_frames - current_page_frames());
 200                 }
 201                 handled = true;
 202                 break;
 203
 204         default:
 205                 /* what? */
 206                 break;
 207         }
 208
 209         return handled;
 210 }
 211
 212
 213 gint
 214 Editor::ruler_button_press (GdkEventButton* ev)
 215 {
 216         if (session == 0) {
 217                 return FALSE;
 218         }
 219
 220         ruler_pressed_button = ev->button;
 221
 222         // jlc: grab ev->window ?
 223         //Gtk::Main::grab_add (*minsec_ruler);
 224         Widget * grab_widget = 0;
 225
 226         if (smpte_ruler->is_realized() && ev->window == smpte_ruler->get_window()->gobj()) grab_widget = smpte_ruler;
 227         else if (bbt_ruler->is_realized() && ev->window == bbt_ruler->get_window()->gobj()) grab_widget = bbt_ruler;
 228         else if (frames_ruler->is_realized() && ev->window == frames_ruler->get_window()->gobj()) grab_widget = frames_ruler;
 229         else if (minsec_ruler->is_realized() && ev->window == minsec_ruler->get_window()->gobj()) grab_widget = minsec_ruler;
 230
 231         if (grab_widget) {
 232                 grab_widget->add_modal_grab ();
 233                 ruler_grabbed_widget = grab_widget;
 234         }
 235
 236         gint x,y;
 237         Gdk::ModifierType state;
 238
 239         /* need to use the correct x,y, the event lies */
 240         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 241
 242         nframes64_t where = leftmost_frame + pixel_to_frame (x);
 243
 244         switch (ev->button) {
 245         case 1:
 246                 // Since we will locate the playhead on button release, cancel any running
 247                 // auditions.
 248                 if (session->is_auditioning()) {
 249                         session->cancel_audition ();
 250                 }
 251                 /* playhead cursor */
 252                 snap_to (where);
 253                 playhead_cursor->set_position (where);
 254                 _dragging_playhead = true;
 255                 break;
 256
 257         case 2:
 258                 /* edit point */
 259                 snap_to (where);
 260                 break;
 261
 262         default:
 263                 break;
 264         }
 265
 266         return TRUE;
 267 }
 268
 269 gint
 270 Editor::ruler_button_release (GdkEventButton* ev)
 271 {
 272         gint x,y;
 273         Gdk::ModifierType state;
 274
 275         /* need to use the correct x,y, the event lies */
 276         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 277
 278         ruler_pressed_button = 0;
 279
 280         if (session == 0) {
 281                 return FALSE;
 282         }
 283
 284         stop_canvas_autoscroll();
 285
 286         nframes64_t where = leftmost_frame + pixel_to_frame (x);
 287
 288         switch (ev->button) {
 289         case 1:
 290                 /* transport playhead */
 291                 _dragging_playhead = false;
 292                 snap_to (where);
 293                 session->request_locate (where);
 294                 break;
 295
 296         case 2:
 297                 /* edit point */
 298                 snap_to (where);
 299                 break;
 300
 301         case 3:
 302                 /* popup menu */
 303                 snap_to (where);
 304                 popup_ruler_menu (where);
 305
 306                 break;
 307         default:
 308                 break;
 309         }
 310
 311
 312         if (ruler_grabbed_widget) {
 313                 ruler_grabbed_widget->remove_modal_grab();
 314                 ruler_grabbed_widget = 0;
 315         }
 316
 317         return TRUE;
 318 }
 319
 320 gint
 321 Editor::ruler_label_button_release (GdkEventButton* ev)
 322 {
 323         if (ev->button == 3) {
 324                 Gtk::Menu* m= dynamic_cast<Gtk::Menu*> (ActionManager::get_widget (X_("/RulerMenuPopup")));
 325                 if (m) {
 326                         m->popup (1, ev->time);
 327                 }
 328         }
 329
 330         return TRUE;
 331 }
 332
 333
 334 gint
 335 Editor::ruler_mouse_motion (GdkEventMotion* ev)
 336 {
 337         if (session == 0 || !ruler_pressed_button) {
 338                 return FALSE;
 339         }
 340
 341         double wcx=0,wcy=0;
 342         double cx=0,cy=0;
 343
 344         gint x,y;
 345         Gdk::ModifierType state;
 346
 347         /* need to use the correct x,y, the event lies */
 348         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 349
 350
 351         track_canvas->c2w (x, y, wcx, wcy);
 352         track_canvas->w2c (wcx, wcy, cx, cy);
 353
 354         nframes64_t where = leftmost_frame + pixel_to_frame (x);
 355
 356         /// ripped from maybe_autoscroll, and adapted to work here
 357         nframes64_t rightmost_frame = leftmost_frame + current_page_frames ();
 358
 359         jack_nframes_t frame = pixel_to_frame (cx);
 360
 361         if (autoscroll_timeout_tag < 0) {
 362                 if (frame > rightmost_frame) {
 363                         if (rightmost_frame < max_frames) {
 364                                 start_canvas_autoscroll (1, 0);
 365                         }
 366                 } else if (frame < leftmost_frame) {
 367                         if (leftmost_frame > 0) {
 368                                 start_canvas_autoscroll (-1, 0);
 369                         }
 370                 }
 371         } else {
 372                 if (frame >= leftmost_frame && frame < rightmost_frame) {
 373                         stop_canvas_autoscroll ();
 374                 }
 375         }
 376         //////
 377
 378         snap_to (where);
 379
 380         Cursor* cursor = 0;
 381
 382         switch (ruler_pressed_button) {
 383         case 1:
 384                 /* transport playhead */
 385                 cursor = playhead_cursor;
 386                 break;
 387
 388         case 2:
 389                 /* edit point */
 390                 // EDIT CURSOR XXX do something useful
 391                 break;
 392
 393         default:
 394                 break;
 395         }
 396
 397         if (cursor) {
 398                 cursor->set_position (where);
 399
 400                 if (cursor == playhead_cursor) {
 401                         UpdateAllTransportClocks (cursor->current_frame);
 402                 }
 403         }
 404
 405         return TRUE;
 406 }
 407
 408
 409 void
 410 Editor::popup_ruler_menu (nframes64_t where, ItemType t)
 411 {
 412         using namespace Menu_Helpers;
 413
 414         if (editor_ruler_menu == 0) {
 415                 editor_ruler_menu = new Menu;
 416                 editor_ruler_menu->set_name ("ArdourContextMenu");
 417         }
 418
 419         // always build from scratch
 420         MenuList& ruler_items = editor_ruler_menu->items();
 421         editor_ruler_menu->set_name ("ArdourContextMenu");
 422         ruler_items.clear();
 423
 424         switch (t) {
 425         case MarkerBarItem:
 426                 ruler_items.push_back (MenuElem (_("New location marker"), bind ( mem_fun(*this, &Editor::mouse_add_new_marker), where, false, false)));
 427                 ruler_items.push_back (MenuElem (_("Clear all locations"), mem_fun(*this, &Editor::clear_markers)));
 428                 ruler_items.push_back (MenuElem (_("Unhide locations"), mem_fun(*this, &Editor::unhide_markers)));
 429                 ruler_items.push_back (SeparatorElem ());
 430                 break;
 431         case RangeMarkerBarItem:
 432                 //ruler_items.push_back (MenuElem (_("New Range")));
 433                 ruler_items.push_back (MenuElem (_("Clear all ranges"), mem_fun(*this, &Editor::clear_ranges)));
 434                 ruler_items.push_back (MenuElem (_("Unhide ranges"), mem_fun(*this, &Editor::unhide_ranges)));
 435                 ruler_items.push_back (SeparatorElem ());
 436
 437                 break;
 438         case TransportMarkerBarItem:
 439
 440                 break;
 441
 442         case CdMarkerBarItem:
 443                 // TODO
 444                 ruler_items.push_back (MenuElem (_("New CD track marker"), bind ( mem_fun(*this, &Editor::mouse_add_new_marker), where, true, false)));
 445                 break;
 446
 447
 448         case TempoBarItem:
 449                 ruler_items.push_back (MenuElem (_("New Tempo"), bind ( mem_fun(*this, &Editor::mouse_add_new_tempo_event), where)));
 450                 ruler_items.push_back (MenuElem (_("Clear tempo")));
 451                 ruler_items.push_back (SeparatorElem ());
 452                 break;
 453
 454         case MeterBarItem:
 455                 ruler_items.push_back (MenuElem (_("New Meter"), bind ( mem_fun(*this, &Editor::mouse_add_new_meter_event), where)));
 456                 ruler_items.push_back (MenuElem (_("Clear meter")));
 457                 ruler_items.push_back (SeparatorElem ());
 458                 break;
 459
 460         default:
 461                 break;
 462         }
 463
 464         Glib::RefPtr<Action> action;
 465
 466         action = ActionManager::get_action ("Rulers", "toggle-minsec-ruler");
 467         if (action) {
 468                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 469         }
 470         if (!Profile->get_sae()) {
 471                 action = ActionManager::get_action ("Rulers", "toggle-timecode-ruler");
 472                 if (action) {
 473                         ruler_items.push_back (MenuElem (*action->create_menu_item()));
 474                 }
 475         }
 476         action = ActionManager::get_action ("Rulers", "toggle-samples-ruler");
 477         if (action) {
 478                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 479         }
 480         action = ActionManager::get_action ("Rulers", "toggle-bbt-ruler");
 481         if (action) {
 482                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 483         }
 484         action = ActionManager::get_action ("Rulers", "toggle-meter-ruler");
 485         if (action) {
 486                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 487         }
 488         action = ActionManager::get_action ("Rulers", "toggle-tempo-ruler");
 489         if (action) {
 490                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 491         }
 492         if (!Profile->get_sae()) {
 493                 action = ActionManager::get_action ("Rulers", "toggle-range-ruler");
 494                 if (action) {
 495                         ruler_items.push_back (MenuElem (*action->create_menu_item()));
 496                 }
 497         }
 498         action = ActionManager::get_action ("Rulers", "toggle-loop-punch-ruler");
 499         if (action) {
 500                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 501         }
 502         action = ActionManager::get_action ("Rulers", "toggle-cd-marker-ruler");
 503         if (action) {
 504                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 505         }
 506         action = ActionManager::get_action ("Rulers", "toggle-marker-ruler");
 507         if (action) {
 508                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 509         }
 510
 511         editor_ruler_menu->popup (1, gtk_get_current_event_time());
 512
 513         no_ruler_shown_update = false;
 514 }
 515
 516 void
 517 Editor::store_ruler_visibility ()
 518 {
 519         XMLNode* node = new XMLNode(X_("RulerVisibility"));
 520
 521         node->add_property (X_("smpte"), ruler_timecode_action->get_active() ? "yes": "no");
 522         node->add_property (X_("bbt"), ruler_bbt_action->get_active() ? "yes": "no");
 523         node->add_property (X_("frames"), ruler_samples_action->get_active() ? "yes": "no");
 524         node->add_property (X_("minsec"), ruler_minsec_action->get_active() ? "yes": "no");
 525         node->add_property (X_("tempo"), ruler_tempo_action->get_active() ? "yes": "no");
 526         node->add_property (X_("meter"), ruler_meter_action->get_active() ? "yes": "no");
 527         node->add_property (X_("marker"), ruler_marker_action->get_active() ? "yes": "no");
 528         node->add_property (X_("rangemarker"), ruler_range_action->get_active() ? "yes": "no");
 529         node->add_property (X_("transportmarker"), ruler_loop_punch_action->get_active() ? "yes": "no");
 530         node->add_property (X_("cdmarker"), ruler_cd_marker_action->get_active() ? "yes": "no");
 531
 532         session->add_extra_xml (*node);
 533         session->set_dirty ();
 534 }
 535
 536 void
 537 Editor::restore_ruler_visibility ()
 538 {
 539         XMLProperty* prop;
 540         XMLNode * node = session->extra_xml (X_("RulerVisibility"));
 541
 542         no_ruler_shown_update = true;
 543
 544         if (node) {
 545                 if ((prop = node->property ("smpte")) != 0) {
 546                         if (prop->value() == "yes") {
 547                                 ruler_timecode_action->set_active (true);
 548                         } else {
 549                                 ruler_timecode_action->set_active (false);
 550                         }
 551                 }
 552                 if ((prop = node->property ("bbt")) != 0) {
 553                         if (prop->value() == "yes") {
 554                                 ruler_bbt_action->set_active (true);
 555                         } else {
 556                                 ruler_bbt_action->set_active (false);
 557                         }
 558                 }
 559                 if ((prop = node->property ("frames")) != 0) {
 560                         if (prop->value() == "yes") {
 561                                 ruler_samples_action->set_active (true);
 562                         } else {
 563                                 ruler_samples_action->set_active (false);
 564                         }
 565                 }
 566                 if ((prop = node->property ("minsec")) != 0) {
 567                         if (prop->value() == "yes") {
 568                                 ruler_minsec_action->set_active (true);
 569                         } else {
 570                                 ruler_minsec_action->set_active (false);
 571                         }
 572                 }
 573                 if ((prop = node->property ("tempo")) != 0) {
 574                         if (prop->value() == "yes") {
 575                                 ruler_tempo_action->set_active (true);
 576                         } else {
 577                                 ruler_tempo_action->set_active (false);
 578                         }
 579                 }
 580                 if ((prop = node->property ("meter")) != 0) {
 581                         if (prop->value() == "yes") {
 582                                 ruler_meter_action->set_active (true);
 583                         } else {
 584                                 ruler_meter_action->set_active (false);
 585                         }
 586                 }
 587                 if ((prop = node->property ("marker")) != 0) {
 588                         if (prop->value() == "yes") {
 589                                 ruler_marker_action->set_active (true);
 590                         } else {
 591                                 ruler_marker_action->set_active (false);
 592                         }
 593                 }
 594                 if ((prop = node->property ("rangemarker")) != 0) {
 595                         if (prop->value() == "yes") {
 596                                 ruler_range_action->set_active (true);
 597                         } else {
 598                                 ruler_range_action->set_active (false);
 599                         }
 600                 }
 601
 602                 if ((prop = node->property ("transportmarker")) != 0) {
 603                         if (prop->value() == "yes") {
 604                                 ruler_loop_punch_action->set_active (true);
 605                         } else {
 606                                 ruler_loop_punch_action->set_active (false);
 607                         }
 608                 }
 609
 610                 if ((prop = node->property ("cdmarker")) != 0) {
 611                         if (prop->value() == "yes") {
 612                                 ruler_cd_marker_action->set_active (true);
 613                         } else {
 614                                 ruler_cd_marker_action->set_active (false);
 615                         }
 616
 617                 } else {
 618                         // this session doesn't yet know about the cdmarker ruler
 619                         // as a benefit to the user who doesn't know the feature exists, show the ruler if
 620                         // any cd marks exist
 621                         ruler_cd_marker_action->set_active (false);
 622                         const Locations::LocationList & locs = session->locations()->list();
 623                         for (Locations::LocationList::const_iterator i = locs.begin(); i != locs.end(); ++i) {
 624                                 if ((*i)->is_cd_marker()) {
 625                                         ruler_cd_marker_action->set_active (true);
 626                                         break;
 627                                 }
 628                         }
 629                 }
 630
 631         }
 632
 633         no_ruler_shown_update = false;
 634         update_ruler_visibility ();
 635 }
 636
 637 void
 638 Editor::update_ruler_visibility ()
 639 {
 640         int visible_rulers = 0;
 641
 642         if (no_ruler_shown_update) {
 643                 return;
 644         }
 645
 646         visible_timebars = 0;
 647
 648         if (ruler_minsec_action->get_active()) {
 649                 visible_rulers++;
 650                 minsec_label.show ();
 651                 minsec_ruler->show ();
 652         } else {
 653                 minsec_label.hide ();
 654                 minsec_ruler->hide ();
 655         }
 656
 657         if (ruler_timecode_action->get_active()) {
 658                 visible_rulers++;
 659                 smpte_label.show ();
 660                 smpte_ruler->show ();
 661         } else {
 662                 smpte_label.hide ();
 663                 smpte_ruler->hide ();
 664         }
 665
 666         if (ruler_samples_action->get_active()) {
 667                 visible_rulers++;
 668                 frame_label.show ();
 669                 frames_ruler->show ();
 670         } else {
 671                 frame_label.hide ();
 672                 frames_ruler->hide ();
 673         }
 674
 675         if (ruler_bbt_action->get_active()) {
 676                 visible_rulers++;
 677                 bbt_label.show ();
 678                 bbt_ruler->show ();
 679         } else {
 680                 bbt_label.hide ();
 681                 bbt_ruler->hide ();
 682         }
 683
 684         double tbpos = 0.0;
 685         double tbgpos = 0.0;
 686         double old_unit_pos;
 687
 688 #ifdef GTKOSX
 689         /* gtk update probs require this (damn) */
 690         meter_label.hide();
 691         tempo_label.hide();
 692         range_mark_label.hide();
 693         transport_mark_label.hide();
 694         cd_mark_label.hide();
 695         mark_label.hide();
 696 #endif
 697         if (ruler_meter_action->get_active()) {
 698                 old_unit_pos = meter_group->property_y();
 699                 if (tbpos != old_unit_pos) {
 700                         meter_group->move ( 0.0, tbpos - old_unit_pos);
 701                 }
 702                 old_unit_pos = meter_bar_group->property_y();
 703                 if (tbgpos != old_unit_pos) {
 704                         meter_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 705                 }
 706                 meter_bar_group->show();
 707                 meter_group->show();
 708                 meter_label.show();
 709                 tbpos += timebar_height;
 710                 tbgpos += timebar_height;
 711                 visible_timebars++;
 712         } else {
 713                 meter_bar_group->hide();
 714                 meter_group->hide();
 715                 meter_label.hide();
 716         }
 717
 718         if (ruler_tempo_action->get_active()) {
 719                 old_unit_pos = tempo_group->property_y();
 720                 if (tbpos != old_unit_pos) {
 721                         tempo_group->move(0.0, tbpos - old_unit_pos);
 722                 }
 723                 old_unit_pos = tempo_bar_group->property_y();
 724                 if (tbgpos != old_unit_pos) {
 725                         tempo_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 726                 }
 727                 tempo_bar_group->show();
 728                 tempo_group->show();
 729                 tempo_label.show();
 730                 tbpos += timebar_height;
 731                 tbgpos += timebar_height;
 732                 visible_timebars++;
 733         } else {
 734                 tempo_bar_group->hide();
 735                 tempo_group->hide();
 736                 tempo_label.hide();
 737         }
 738
 739         if (!Profile->get_sae() && ruler_range_action->get_active()) {
 740                 old_unit_pos = range_marker_group->property_y();
 741                 if (tbpos != old_unit_pos) {
 742                         range_marker_group->move (0.0, tbpos - old_unit_pos);
 743                 }
 744                 old_unit_pos = range_marker_bar_group->property_y();
 745                 if (tbgpos != old_unit_pos) {
 746                         range_marker_bar_group->move (0.0, tbgpos - old_unit_pos);
 747                 }
 748                 range_marker_bar_group->show();
 749                 range_marker_group->show();
 750                 range_mark_label.show();
 751
 752                 tbpos += timebar_height;
 753                 tbgpos += timebar_height;
 754                 visible_timebars++;
 755         } else {
 756                 range_marker_bar_group->hide();
 757                 range_marker_group->hide();
 758                 range_mark_label.hide();
 759         }
 760
 761         if (ruler_loop_punch_action->get_active()) {
 762                 old_unit_pos = transport_marker_group->property_y();
 763                 if (tbpos != old_unit_pos) {
 764                         transport_marker_group->move ( 0.0, tbpos - old_unit_pos);
 765                 }
 766                 old_unit_pos = transport_marker_bar_group->property_y();
 767                 if (tbgpos != old_unit_pos) {
 768                         transport_marker_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 769                 }
 770                 transport_marker_bar_group->show();
 771                 transport_marker_group->show();
 772                 transport_mark_label.show();
 773                 tbpos += timebar_height;
 774                 tbgpos += timebar_height;
 775                 visible_timebars++;
 776         } else {
 777                 transport_marker_bar_group->hide();
 778                 transport_marker_group->hide();
 779                 transport_mark_label.hide();
 780         }
 781
 782         if (ruler_cd_marker_action->get_active()) {
 783                 old_unit_pos = cd_marker_group->property_y();
 784                 if (tbpos != old_unit_pos) {
 785                         cd_marker_group->move (0.0, tbpos - old_unit_pos);
 786                 }
 787                 old_unit_pos = cd_marker_bar_group->property_y();
 788                 if (tbgpos != old_unit_pos) {
 789                         cd_marker_bar_group->move (0.0, tbgpos - old_unit_pos);
 790                 }
 791                 cd_marker_bar_group->show();
 792                 cd_marker_group->show();
 793                 cd_mark_label.show();
 794                 tbpos += timebar_height;
 795                 tbgpos += timebar_height;
 796                 visible_timebars++;
 797                 // make sure all cd markers show up in their respective places
 798                 update_cd_marker_display();
 799         } else {
 800                 cd_marker_bar_group->hide();
 801                 cd_marker_group->hide();
 802                 cd_mark_label.hide();
 803                 // make sure all cd markers show up in their respective places
 804                 update_cd_marker_display();
 805         }
 806
 807         if (ruler_marker_action->get_active()) {
 808                 old_unit_pos = marker_group->property_y();
 809                 if (tbpos != old_unit_pos) {
 810                         marker_group->move ( 0.0, tbpos - old_unit_pos);
 811                 }
 812                 old_unit_pos = marker_bar_group->property_y();
 813                 if (tbgpos != old_unit_pos) {
 814                         marker_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 815                 }
 816                 marker_bar_group->show();
 817                 marker_group->show();
 818                 mark_label.show();
 819                 tbpos += timebar_height;
 820                 tbgpos += timebar_height;
 821                 visible_timebars++;
 822         } else {
 823                 marker_bar_group->hide();
 824                 marker_group->hide();
 825                 mark_label.hide();
 826         }
 827
 828         gdouble old_canvas_timebars_vsize = canvas_timebars_vsize;
 829         canvas_timebars_vsize = (timebar_height * visible_timebars) - 1;
 830         gdouble vertical_pos_delta = canvas_timebars_vsize - old_canvas_timebars_vsize;
 831         vertical_adjustment.set_upper(vertical_adjustment.get_upper() + vertical_pos_delta);
 832         full_canvas_height += vertical_pos_delta;
 833
 834         if (vertical_adjustment.get_value() != 0 && (vertical_adjustment.get_value() + canvas_height >= full_canvas_height)) {
 835                 /*if we're at the bottom of the canvas, don't move the _trackview_group*/
 836                 vertical_adjustment.set_value (full_canvas_height - canvas_height + 1);
 837         } else {
 838                 _trackview_group->property_y () = - get_trackview_group_vertical_offset ();
 839                 _background_group->property_y () = - get_trackview_group_vertical_offset ();
 840                 _trackview_group->move (0, 0);
 841                 _background_group->move (0, 0);
 842                 last_trackview_group_vertical_offset = get_trackview_group_vertical_offset ();
 843         }
 844
 845         gdouble bottom_track_pos = vertical_adjustment.get_value() + canvas_height - canvas_timebars_vsize;
 846         if (trackview_by_y_position(bottom_track_pos) != 0) {
 847                 trackview_by_y_position(bottom_track_pos)->clip_to_viewport ();
 848         }
 849
 850         ruler_label_vbox.set_size_request (-1, (int)(timebar_height * visible_rulers));
 851         time_canvas_vbox.set_size_request (-1,-1);
 852
 853         update_fixed_rulers();
 854         redisplay_tempo (false);
 855 }
 856
 857 void
 858 Editor::update_just_smpte ()
 859 {
 860         ENSURE_GUI_THREAD(mem_fun(*this, &Editor::update_just_smpte));
 861
 862         if (session == 0) {
 863                 return;
 864         }
 865
 866         nframes64_t rightmost_frame = leftmost_frame + current_page_frames();
 867
 868         if (ruler_timecode_action->get_active()) {
 869                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 870                                             leftmost_frame, session->current_end_frame());
 871         }
 872 }
 873
 874 void
 875 Editor::compute_fixed_ruler_scale ()
 876 {
 877         if (session == 0) {
 878                 return;
 879         }
 880
 881         if (ruler_timecode_action->get_active()) {
 882                 set_smpte_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames() );
 883         }
 884
 885         if (ruler_minsec_action->get_active()) {
 886                 set_minsec_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames() );
 887         }
 888 }
 889
 890 void
 891 Editor::update_fixed_rulers ()
 892 {
 893         nframes64_t rightmost_frame;
 894
 895         if (session == 0) {
 896                 return;
 897         }
 898
 899         ruler_metrics[ruler_metric_smpte].units_per_pixel = frames_per_unit;
 900         ruler_metrics[ruler_metric_frames].units_per_pixel = frames_per_unit;
 901         ruler_metrics[ruler_metric_minsec].units_per_pixel = frames_per_unit;
 902
 903         rightmost_frame = leftmost_frame + current_page_frames();
 904
 905         /* these force a redraw, which in turn will force execution of the metric callbacks
 906            to compute the relevant ticks to display.
 907         */
 908
 909         if (ruler_timecode_action->get_active()) {
 910                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 911                                             leftmost_frame, session->current_end_frame());
 912         }
 913
 914         if (ruler_samples_action->get_active()) {
 915                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_frames_ruler), leftmost_frame, rightmost_frame,
 916                                             leftmost_frame, session->current_end_frame());
 917         }
 918
 919         if (ruler_minsec_action->get_active()) {
 920                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_minsec_ruler), leftmost_frame, rightmost_frame,
 921                                             leftmost_frame, session->current_end_frame());
 922         }
 923 }
 924
 925 void
 926 Editor::update_tempo_based_rulers ()
 927 {
 928         if (session == 0) {
 929                 return;
 930         }
 931
 932         ruler_metrics[ruler_metric_bbt].units_per_pixel = frames_per_unit;
 933
 934         if (ruler_bbt_action->get_active()) {
 935                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_bbt_ruler), leftmost_frame, leftmost_frame+current_page_frames(),
 936                                             leftmost_frame, session->current_end_frame());
 937         }
 938 }
 939
 940 /* Mark generation */
 941
 942 gint
 943 Editor::_metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 944 {
 945         return ruler_editor->metric_get_smpte (marks, lower, upper, maxchars);
 946 }
 947
 948 gint
 949 Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 950 {
 951         return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 952 }
 953
 954 gint
 955 Editor::_metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 956 {
 957         return ruler_editor->metric_get_frames (marks, lower, upper, maxchars);
 958 }
 959
 960 gint
 961 Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 962 {
 963         return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 964 }
 965
 966 void
 967 Editor::set_smpte_ruler_scale (gdouble lower, gdouble upper)
 968 {
 969         nframes64_t range;
 970         nframes64_t spacer;
 971         nframes64_t fr;
 972
 973         if (session == 0) {
 974                 return;
 975         }
 976
 977         fr = session->frame_rate();
 978
 979         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
 980                 lower = lower - spacer;
 981         } else {
 982                 lower = 0;
 983         }
 984         upper = upper + spacer;
 985         range = (nframes64_t) floor (upper - lower);
 986
 987         if (range < (2 * session->frames_per_smpte_frame())) { /* 0 - 2 frames */
 988                 smpte_ruler_scale = smpte_show_bits;
 989                 smpte_mark_modulo = 20;
 990                 smpte_nmarks = 2 + (2 * Config->get_subframes_per_frame());
 991         } else if (range <= (fr / 4)) { /* 2 frames - 0.250 second */
 992                 smpte_ruler_scale = smpte_show_frames;
 993                 smpte_mark_modulo = 1;
 994                 smpte_nmarks = 2 + (range / (nframes64_t)session->frames_per_smpte_frame());
 995         } else if (range <= (fr / 2)) { /* 0.25-0.5 second */
 996                 smpte_ruler_scale = smpte_show_frames;
 997                 smpte_mark_modulo = 2;
 998                 smpte_nmarks = 2 + (range / (nframes64_t)session->frames_per_smpte_frame());
 999         } else if (range <= fr) { /* 0.5-1 second */
1000                 smpte_ruler_scale = smpte_show_frames;
1001                 smpte_mark_modulo = 5;
1002                 smpte_nmarks = 2 + (range / (nframes64_t)session->frames_per_smpte_frame());
1003         } else if (range <= 2 * fr) { /* 1-2 seconds */
1004                 smpte_ruler_scale = smpte_show_frames;
1005                 smpte_mark_modulo = 10;
1006                 smpte_nmarks = 2 + (range / (nframes64_t)session->frames_per_smpte_frame());
1007         } else if (range <= 8 * fr) { /* 2-8 seconds */
1008                 smpte_ruler_scale = smpte_show_seconds;
1009                 smpte_mark_modulo = 1;
1010                 smpte_nmarks = 2 + (range / fr);
1011         } else if (range <= 16 * fr) { /* 8-16 seconds */
1012                 smpte_ruler_scale = smpte_show_seconds;
1013                 smpte_mark_modulo = 2;
1014                 smpte_nmarks = 2 + (range / fr);
1015         } else if (range <= 30 * fr) { /* 16-30 seconds */
1016                 smpte_ruler_scale = smpte_show_seconds;
1017                 smpte_mark_modulo = 5;
1018                 smpte_nmarks = 2 + (range / fr);
1019         } else if (range <= 60 * fr) { /* 30-60 seconds */
1020                 smpte_ruler_scale = smpte_show_seconds;
1021                 smpte_mark_modulo = 5;
1022                 smpte_nmarks = 2 + (range / fr);
1023         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1024                 smpte_ruler_scale = smpte_show_seconds;
1025                 smpte_mark_modulo = 15;
1026                 smpte_nmarks = 2 + (range / fr);
1027         } else if (range <= 4 * 60 * fr) { /* 2-4 minutes */
1028                 smpte_ruler_scale = smpte_show_seconds;
1029                 smpte_mark_modulo = 30;
1030                 smpte_nmarks = 2 + (range / fr);
1031         } else if (range <= 10 * 60 * fr) { /* 4-10 minutes */
1032                 smpte_ruler_scale = smpte_show_minutes;
1033                 smpte_mark_modulo = 2;
1034                 smpte_nmarks = 2 + 10;
1035         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1036                 smpte_ruler_scale = smpte_show_minutes;
1037                 smpte_mark_modulo = 5;
1038                 smpte_nmarks = 2 + 30;
1039         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1040                 smpte_ruler_scale = smpte_show_minutes;
1041                 smpte_mark_modulo = 10;
1042                 smpte_nmarks = 2 + 60;
1043         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1044                 smpte_ruler_scale = smpte_show_minutes;
1045                 smpte_mark_modulo = 30;
1046                 smpte_nmarks = 2 + (60 * 4);
1047         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1048                 smpte_ruler_scale = smpte_show_hours;
1049                 smpte_mark_modulo = 1;
1050                 smpte_nmarks = 2 + 8;
1051         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1052                 smpte_ruler_scale = smpte_show_hours;
1053                 smpte_mark_modulo = 1;
1054                 smpte_nmarks = 2 + 24;
1055         } else {
1056
1057                 /* not possible if nframes64_t is a 32 bit quantity */
1058
1059                 smpte_ruler_scale = smpte_show_hours;
1060                 smpte_mark_modulo = 4;
1061                 smpte_nmarks = 2 + 24;
1062         }
1063
1064 }
1065
1066 gint
1067 Editor::metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1068 {
1069         nframes_t pos;
1070         nframes64_t spacer;
1071         SMPTE::Time smpte;
1072         gchar buf[16];
1073         gint n;
1074
1075         if (session == 0) {
1076                 return 0;
1077         }
1078
1079         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
1080                 lower = lower - spacer;
1081         } else {
1082                 lower = 0;
1083         }
1084
1085         pos = (nframes_t) floor (lower);
1086
1087         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * smpte_nmarks);
1088         switch (smpte_ruler_scale) {
1089         case smpte_show_bits:
1090
1091                 // Find smpte time of this sample (pos) with subframe accuracy
1092                 session->sample_to_smpte(pos, smpte, true /* use_offset */, true /* use_subframes */ );
1093
1094                 for (n = 0; n < smpte_nmarks; n++) {
1095                         session->smpte_to_sample(smpte, pos, true /* use_offset */, true /* use_subframes */ );
1096                         if ((smpte.subframes % smpte_mark_modulo) == 0) {
1097                                 if (smpte.subframes == 0) {
1098                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1099                                         snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1100                                 } else {
1101                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1102                                         snprintf (buf, sizeof(buf), ".%02u", smpte.subframes);
1103                                 }
1104                         } else {
1105                                 snprintf (buf, sizeof(buf)," ");
1106                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1107
1108                         }
1109                         (*marks)[n].label = g_strdup (buf);
1110                         (*marks)[n].position = pos;
1111
1112                         // Increment subframes by one
1113                         SMPTE::increment_subframes( smpte );
1114                 }
1115           break;
1116         case smpte_show_seconds:
1117                 // Find smpte time of this sample (pos)
1118                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1119                 // Go to next whole second down
1120                 SMPTE::seconds_floor( smpte );
1121
1122                 for (n = 0; n < smpte_nmarks; n++) {
1123                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1124                         if ((smpte.seconds % smpte_mark_modulo) == 0) {
1125                                 if (smpte.seconds == 0) {
1126                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1127                                         (*marks)[n].position = pos;
1128                                 } else {
1129                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1130                                         (*marks)[n].position = pos;
1131                                 }
1132                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1133                         } else {
1134                                 snprintf (buf, sizeof(buf)," ");
1135                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1136                                 (*marks)[n].position = pos;
1137
1138                         }
1139                         (*marks)[n].label = g_strdup (buf);
1140                         SMPTE::increment_seconds( smpte );
1141                 }
1142           break;
1143         case smpte_show_minutes:
1144                 // Find smpte time of this sample (pos)
1145                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1146                 // Go to next whole minute down
1147                 SMPTE::minutes_floor( smpte );
1148
1149                 for (n = 0; n < smpte_nmarks; n++) {
1150                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1151                         if ((smpte.minutes % smpte_mark_modulo) == 0) {
1152                                 if (smpte.minutes == 0) {
1153                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1154                                 } else {
1155                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1156                                 }
1157                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1158                         } else {
1159                                 snprintf (buf, sizeof(buf)," ");
1160                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1161
1162                         }
1163                         (*marks)[n].label = g_strdup (buf);
1164                         (*marks)[n].position = pos;
1165                         SMPTE::increment_minutes( smpte );
1166                 }
1167
1168           break;
1169         case smpte_show_hours:
1170                 // Find smpte time of this sample (pos)
1171                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1172                 // Go to next whole hour down
1173                 SMPTE::hours_floor( smpte );
1174
1175                 for (n = 0; n < smpte_nmarks; n++) {
1176                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1177                         if ((smpte.hours % smpte_mark_modulo) == 0) {
1178                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1179                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1180                         } else {
1181                                 snprintf (buf, sizeof(buf)," ");
1182                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1183
1184                         }
1185                         (*marks)[n].label = g_strdup (buf);
1186                         (*marks)[n].position = pos;
1187
1188                         SMPTE::increment_hours( smpte );
1189                 }
1190           break;
1191         case smpte_show_frames:
1192                 // Find smpte time of this sample (pos)
1193                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1194                 // Go to next whole frame down
1195                 SMPTE::frames_floor( smpte );
1196
1197                 for (n = 0; n < smpte_nmarks; n++) {
1198                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1199                         if ((smpte.frames % smpte_mark_modulo) == 0)  {
1200                                 if (smpte.frames == 0) {
1201                                   (*marks)[n].style = GtkCustomRulerMarkMajor;
1202                                 } else {
1203                                   (*marks)[n].style = GtkCustomRulerMarkMinor;
1204                                 }
1205                                 (*marks)[n].position = pos;
1206                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1207                         } else {
1208                                 snprintf (buf, sizeof(buf)," ");
1209                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1210                                 (*marks)[n].position = pos;
1211
1212                         }
1213                         (*marks)[n].label = g_strdup (buf);
1214                         SMPTE::increment( smpte );
1215                 }
1216
1217           break;
1218         }
1219
1220         return smpte_nmarks;
1221 }
1222
1223
1224 void
1225 Editor::compute_bbt_ruler_scale (nframes64_t lower, nframes64_t upper)
1226 {
1227         if (session == 0) {
1228                 return;
1229         }
1230         TempoMap::BBTPointList::iterator i;
1231         BBT_Time lower_beat, upper_beat; // the beats at each end of the ruler
1232
1233         session->bbt_time((jack_nframes_t) lower, lower_beat);
1234         session->bbt_time((jack_nframes_t) upper, upper_beat);
1235         uint32_t beats = 0;
1236
1237         bbt_accent_modulo = 1;
1238         bbt_bar_helper_on = false;
1239         bbt_bars = 0;
1240         bbt_nmarks = 1;
1241
1242         bbt_ruler_scale =  bbt_over;
1243
1244         switch (snap_type) {
1245         case SnapToAThirdBeat:
1246                 bbt_beat_subdivision = 3;
1247                 break;
1248         case SnapToAQuarterBeat:
1249                 bbt_beat_subdivision = 4;
1250                 break;
1251         case SnapToAEighthBeat:
1252                 bbt_beat_subdivision = 8;
1253                 bbt_accent_modulo = 2;
1254                 break;
1255         case SnapToASixteenthBeat:
1256                 bbt_beat_subdivision = 16;
1257                 bbt_accent_modulo = 4;
1258                 break;
1259         case SnapToAThirtysecondBeat:
1260                 bbt_beat_subdivision = 32;
1261                 bbt_accent_modulo = 8;
1262                 break;
1263         default:
1264                 bbt_beat_subdivision = 4;
1265                 break;
1266         }
1267
1268         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1269                 return;
1270         }
1271
1272         i = current_bbt_points->end();
1273         i--;
1274         if ((*i).beat >= (*current_bbt_points->begin()).beat) {
1275           bbt_bars = (*i).bar - (*current_bbt_points->begin()).bar;
1276         } else {
1277           bbt_bars = (*i).bar - (*current_bbt_points->begin()).bar - 1;
1278         }
1279         beats = current_bbt_points->size() - bbt_bars;
1280
1281         /*Only show the bar helper if there aren't many bars on the screen */
1282         if ((bbt_bars < 2) || (beats < 5)) {
1283                 bbt_bar_helper_on = true;
1284         }
1285
1286         if (bbt_bars > 8192) {
1287           bbt_ruler_scale =  bbt_over;
1288         } else if (bbt_bars > 1024) {
1289           bbt_ruler_scale = bbt_show_64;
1290         } else if (bbt_bars > 256) {
1291           bbt_ruler_scale = bbt_show_16;
1292         } else if (bbt_bars > 64) {
1293           bbt_ruler_scale = bbt_show_4;
1294         } else if (bbt_bars > 10) {
1295           bbt_ruler_scale =  bbt_show_1;
1296         } else if (bbt_bars > 2) {
1297           bbt_ruler_scale =  bbt_show_beats;
1298         } else  if (bbt_bars > 0) {
1299           bbt_ruler_scale =  bbt_show_ticks;
1300         } else {
1301           bbt_ruler_scale =  bbt_show_ticks_detail;
1302         }
1303
1304         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)) {
1305                 bbt_ruler_scale =  bbt_show_ticks_super_detail;
1306         }
1307 }
1308
1309 gint
1310 Editor::metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1311 {
1312         if (session == 0) {
1313                 return 0;
1314         }
1315
1316         TempoMap::BBTPointList::iterator i;
1317
1318         char buf[64];
1319         gint  n = 0;
1320         nframes64_t pos;
1321         BBT_Time next_beat;
1322         nframes64_t next_beat_pos;
1323         uint32_t beats = 0;
1324
1325         uint32_t tick = 0;
1326         uint32_t skip;
1327         uint32_t t;
1328         nframes64_t frame_skip;
1329         double frame_skip_error;
1330         double bbt_position_of_helper;
1331         double accumulated_error;
1332         bool i_am_accented = false;
1333         bool helper_active = false;
1334
1335         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1336                 return 0;
1337         }
1338
1339         switch (bbt_ruler_scale) {
1340
1341         case bbt_show_beats:
1342                 beats = current_bbt_points->size();
1343                 bbt_nmarks = beats + 2;
1344
1345                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1346
1347                 (*marks)[0].label = g_strdup(" ");
1348                 (*marks)[0].position = lower;
1349                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1350
1351                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1352                         if  ((*i).type != TempoMap::Beat) {
1353                                 continue;
1354                         }
1355                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1356                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1357                                 (*marks)[0].label = g_strdup (buf);
1358                                 helper_active = true;
1359                         } else {
1360
1361                                 if ((*i).beat == 1) {
1362                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1363                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1364                                 } else if (((*i).beat % 2 == 1)) {
1365                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1366                                         snprintf (buf, sizeof(buf), " ");
1367                                 } else {
1368                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1369                                         snprintf (buf, sizeof(buf), " ");
1370                                 }
1371                                 (*marks)[n].label =  g_strdup (buf);
1372                                 (*marks)[n].position = (*i).frame;
1373                                 n++;
1374                         }
1375                 }
1376                 break;
1377
1378         case bbt_show_ticks:
1379
1380                 beats = current_bbt_points->size();
1381                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1382
1383                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1384                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1385
1386                 (*marks)[0].label = g_strdup(" ");
1387                 (*marks)[0].position = lower;
1388                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1389
1390                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1391                         if  ((*i).type != TempoMap::Beat) {
1392                                 continue;
1393                         }
1394                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1395                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1396                                 (*marks)[0].label = g_strdup (buf);
1397                                 helper_active = true;
1398                         } else {
1399
1400                                 if ((*i).beat == 1) {
1401                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1402                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1403                                 } else {
1404                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1405                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1406                                 }
1407                                 if (((*i).frame < bbt_position_of_helper) && helper_active) {
1408                                         snprintf (buf, sizeof(buf), " ");
1409                                 }
1410                                 (*marks)[n].label =  g_strdup (buf);
1411                                 (*marks)[n].position = (*i).frame;
1412                                 n++;
1413                         }
1414
1415                         /* Add the tick marks */
1416
1417                         /* Find the next beat */
1418                         next_beat.beats = (*i).beat;
1419                         next_beat.bars = (*i).bar;
1420                         next_beat.ticks = 0;
1421
1422                         if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1423                                   next_beat.beats += 1;
1424                         } else {
1425                                   next_beat.bars += 1;
1426                                   next_beat.beats = 1;
1427                         }
1428
1429                         next_beat_pos = session->tempo_map().frame_time(next_beat);
1430
1431                         frame_skip = (nframes64_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1432                         frame_skip_error -= frame_skip;
1433                         skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1434
1435                         pos = (*i).frame + frame_skip;
1436                         accumulated_error = frame_skip_error;
1437
1438                         tick = skip;
1439
1440                         for (t = 0; (tick < Meter::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1441
1442                                 if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1443                                         i_am_accented = true;
1444                                 }
1445
1446                                 snprintf (buf, sizeof(buf), " ");
1447                                 (*marks)[n].label = g_strdup (buf);
1448
1449                                 /* Error compensation for float to nframes64_t*/
1450                                 accumulated_error += frame_skip_error;
1451                                 if (accumulated_error > 1) {
1452                                         pos += 1;
1453                                         accumulated_error -= 1.0f;
1454                                 }
1455
1456                                 (*marks)[n].position = pos;
1457
1458                                 if ((bbt_beat_subdivision > 4) && i_am_accented) {
1459                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1460                                 } else {
1461                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1462                                 }
1463                                 i_am_accented = false;
1464                                 n++;
1465                         }
1466                 }
1467
1468           break;
1469
1470         case bbt_show_ticks_detail:
1471
1472                 beats = current_bbt_points->size();
1473                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1474
1475                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1476                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1477
1478                 (*marks)[0].label = g_strdup(" ");
1479                 (*marks)[0].position = lower;
1480                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1481
1482                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1483                         if  ((*i).type != TempoMap::Beat) {
1484                                 continue;
1485                         }
1486                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1487                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1488                                 (*marks)[0].label = g_strdup (buf);
1489                                 helper_active = true;
1490                         } else {
1491
1492                                 if ((*i).beat == 1) {
1493                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1494                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1495                                 } else {
1496                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1497                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1498                                 }
1499                                 if (((*i).frame < bbt_position_of_helper) && helper_active) {
1500                                         snprintf (buf, sizeof(buf), " ");
1501                                 }
1502                                 (*marks)[n].label =  g_strdup (buf);
1503                                 (*marks)[n].position = (*i).frame;
1504                                 n++;
1505                         }
1506
1507                         /* Add the tick marks */
1508
1509                         /* Find the next beat */
1510
1511                         next_beat.beats = (*i).beat;
1512                         next_beat.bars = (*i).bar;
1513
1514                         if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1515                                   next_beat.beats += 1;
1516                         } else {
1517                                   next_beat.bars += 1;
1518                                   next_beat.beats = 1;
1519                         }
1520
1521                         next_beat_pos = session->tempo_map().frame_time(next_beat);
1522
1523                         frame_skip = (nframes64_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1524                         frame_skip_error -= frame_skip;
1525                         skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1526
1527                         pos = (*i).frame + frame_skip;
1528                         accumulated_error = frame_skip_error;
1529
1530                         tick = skip;
1531
1532                         for (t = 0; (tick < Meter::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1533
1534                                 if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1535                                         i_am_accented = true;
1536                                 }
1537
1538                                 if (i_am_accented && (pos > bbt_position_of_helper)){
1539                                         snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1540                                 } else {
1541                                         snprintf (buf, sizeof(buf), " ");
1542                                 }
1543
1544                                 (*marks)[n].label = g_strdup (buf);
1545
1546                                 /* Error compensation for float to nframes64_t*/
1547                                 accumulated_error += frame_skip_error;
1548                                 if (accumulated_error > 1) {
1549                                         pos += 1;
1550                                         accumulated_error -= 1.0f;
1551                                 }
1552
1553                                 (*marks)[n].position = pos;
1554
1555                                 if ((bbt_beat_subdivision > 4) && i_am_accented) {
1556                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1557                                 } else {
1558                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1559                                 }
1560                                 i_am_accented = false;
1561                                 n++;
1562                         }
1563                 }
1564
1565           break;
1566
1567         case bbt_show_ticks_super_detail:
1568
1569                 beats = current_bbt_points->size();
1570                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1571
1572                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1573                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1574
1575                 (*marks)[0].label = g_strdup(" ");
1576                 (*marks)[0].position = lower;
1577                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1578
1579                 for (n = 1,   i = current_bbt_points->begin(); n < bbt_nmarks && i != current_bbt_points->end(); ++i) {
1580                         if  ((*i).type != TempoMap::Beat) {
1581                                   continue;
1582                         }
1583                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1584                                   snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1585                                   (*marks)[0].label = g_strdup (buf);
1586                                   helper_active = true;
1587                         } else {
1588
1589                                   if ((*i).beat == 1) {
1590                                           (*marks)[n].style = GtkCustomRulerMarkMajor;
1591                                           snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1592                                   } else {
1593                                           (*marks)[n].style = GtkCustomRulerMarkMinor;
1594                                           snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1595                                   }
1596                                   if (((*i).frame < bbt_position_of_helper) && helper_active) {
1597                                           snprintf (buf, sizeof(buf), " ");
1598                                   }
1599                                   (*marks)[n].label =  g_strdup (buf);
1600                                   (*marks)[n].position = (*i).frame;
1601                                   n++;
1602                         }
1603
1604                         /* Add the tick marks */
1605
1606                         /* Find the next beat */
1607
1608                         next_beat.beats = (*i).beat;
1609                         next_beat.bars = (*i).bar;
1610
1611                         if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1612                                   next_beat.beats += 1;
1613                         } else {
1614                                   next_beat.bars += 1;
1615                                   next_beat.beats = 1;
1616                         }
1617
1618                         next_beat_pos = session->tempo_map().frame_time(next_beat);
1619
1620                         frame_skip = (nframes64_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1621                         frame_skip_error -= frame_skip;
1622                         skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1623
1624                         pos = (*i).frame + frame_skip;
1625                         accumulated_error = frame_skip_error;
1626
1627                         tick = skip;
1628
1629                         for (t = 0; (tick < Meter::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1630
1631                                   if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1632                                           i_am_accented = true;
1633                                   }
1634
1635                                   if (pos > bbt_position_of_helper) {
1636                                           snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1637                                   } else {
1638                                           snprintf (buf, sizeof(buf), " ");
1639                                   }
1640
1641                                   (*marks)[n].label = g_strdup (buf);
1642
1643                                   /* Error compensation for float to nframes64_t*/
1644                                   accumulated_error += frame_skip_error;
1645                                   if (accumulated_error > 1) {
1646                                           pos += 1;
1647                                           accumulated_error -= 1.0f;
1648                                   }
1649
1650                                   (*marks)[n].position = pos;
1651
1652                                   if ((bbt_beat_subdivision > 4) && i_am_accented) {
1653                                           (*marks)[n].style = GtkCustomRulerMarkMinor;
1654                                   } else {
1655                                           (*marks)[n].style = GtkCustomRulerMarkMicro;
1656                                   }
1657                                   i_am_accented = false;
1658                                   n++;
1659                         }
1660                 }
1661
1662           break;
1663
1664         case bbt_over:
1665                         bbt_nmarks = 1;
1666                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1667                         snprintf (buf, sizeof(buf), "cannot handle %" PRIu32 " bars", bbt_bars );
1668                         (*marks)[0].style = GtkCustomRulerMarkMajor;
1669                         (*marks)[0].label = g_strdup (buf);
1670                         (*marks)[0].position = lower;
1671                         n = 1;
1672
1673           break;
1674
1675         case bbt_show_64:
1676                         bbt_nmarks = (gint) (bbt_bars / 64) + 1;
1677                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1678                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; i++) {
1679                                 if ((*i).type == TempoMap::Bar)  {
1680                                         if ((*i).bar % 64 == 1) {
1681                                                 if ((*i).bar % 256 == 1) {
1682                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1683                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1684                                                 } else {
1685                                                         snprintf (buf, sizeof(buf), " ");
1686                                                         if ((*i).bar % 256 == 129)  {
1687                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1688                                                         } else {
1689                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1690                                                         }
1691                                                 }
1692                                                 (*marks)[n].label = g_strdup (buf);
1693                                                 (*marks)[n].position = (*i).frame;
1694                                                 n++;
1695                                         }
1696                                 }
1697                         }
1698                         break;
1699
1700         case bbt_show_16:
1701                 bbt_nmarks = (bbt_bars / 16) + 1;
1702                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1703                 for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; i++) {
1704                         if ((*i).type == TempoMap::Bar)  {
1705                           if ((*i).bar % 16 == 1) {
1706                                 if ((*i).bar % 64 == 1) {
1707                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1708                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1709                                 } else {
1710                                         snprintf (buf, sizeof(buf), " ");
1711                                         if ((*i).bar % 64 == 33)  {
1712                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1713                                         } else {
1714                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1715                                         }
1716                                 }
1717                                 (*marks)[n].label = g_strdup (buf);
1718                                 (*marks)[n].position = (*i).frame;
1719                                 n++;
1720                           }
1721                         }
1722                 }
1723           break;
1724
1725         case bbt_show_4:
1726                 bbt_nmarks = (bbt_bars / 4) + 1;
1727                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1728                 for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; ++i) {
1729                         if ((*i).type == TempoMap::Bar)  {
1730                           if ((*i).bar % 4 == 1) {
1731                                 if ((*i).bar % 16 == 1) {
1732                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1733                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1734                                 } else {
1735                                         snprintf (buf, sizeof(buf), " ");
1736                                         if ((*i).bar % 16 == 9)  {
1737                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1738                                         } else {
1739                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1740                                         }
1741                                 }
1742                                 (*marks)[n].label = g_strdup (buf);
1743                                 (*marks)[n].position = (*i).frame;
1744                                 n++;
1745                           }
1746                         }
1747                 }
1748           break;
1749
1750         case bbt_show_1:
1751   //    default:
1752                 bbt_nmarks = bbt_bars + 2;
1753                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks );
1754                 for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < bbt_nmarks; i++) {
1755                         if ((*i).type == TempoMap::Bar)  {
1756                           if ((*i).bar % 4 == 1) {
1757                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1758                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1759                           } else {
1760                                 snprintf (buf, sizeof(buf), " ");
1761                                 if ((*i).bar % 4 == 3)  {
1762                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1763                                 } else {
1764                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1765                                 }
1766                           }
1767                         (*marks)[n].label = g_strdup (buf);
1768                         (*marks)[n].position = (*i).frame;
1769                         n++;
1770                         }
1771                 }
1772
1773         break;
1774
1775         }
1776
1777         return n; //return the actual number of marks made, since we might have skipped some from fractional time signatures
1778
1779 }
1780
1781 gint
1782 Editor::metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1783 {
1784         nframes64_t mark_interval;
1785         nframes64_t pos;
1786         nframes64_t ilower = (nframes64_t) floor (lower);
1787         nframes64_t iupper = (nframes64_t) floor (upper);
1788         gchar buf[16];
1789         gint nmarks;
1790         gint n;
1791
1792         if (session == 0) {
1793                 return 0;
1794         }
1795
1796         mark_interval = (iupper - ilower) / 5;
1797         if (mark_interval > session->frame_rate()) {
1798                 mark_interval -= mark_interval % session->frame_rate();
1799         } else {
1800                 mark_interval = session->frame_rate() / (session->frame_rate() / mark_interval ) ;
1801         }
1802         nmarks = 5;
1803         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1804         for (n = 0, pos = ilower; n < nmarks; pos += mark_interval, ++n) {
1805                 snprintf (buf, sizeof(buf), "%" PRIi64, pos);
1806                 (*marks)[n].label = g_strdup (buf);
1807                 (*marks)[n].position = pos;
1808                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1809         }
1810
1811         return nmarks;
1812 }
1813
1814 static void
1815 sample_to_clock_parts ( nframes64_t sample,
1816                         nframes64_t sample_rate,
1817                         long *hrs_p,
1818                         long *mins_p,
1819                         long *secs_p,
1820                         long *millisecs_p)
1821
1822 {
1823         nframes64_t left;
1824         long hrs;
1825         long mins;
1826         long secs;
1827         long millisecs;
1828
1829         left = sample;
1830         hrs = left / (sample_rate * 60 * 60);
1831         left -= hrs * sample_rate * 60 * 60;
1832         mins = left / (sample_rate * 60);
1833         left -= mins * sample_rate * 60;
1834         secs = left / sample_rate;
1835         left -= secs * sample_rate;
1836         millisecs = left * 1000 / sample_rate;
1837
1838         *millisecs_p = millisecs;
1839         *secs_p = secs;
1840         *mins_p = mins;
1841         *hrs_p = hrs;
1842
1843         return;
1844 }
1845
1846 void
1847 Editor::set_minsec_ruler_scale (gdouble lower, gdouble upper)
1848 {
1849         nframes64_t range;
1850         nframes64_t fr;
1851         nframes64_t spacer;
1852
1853         if (session == 0) {
1854                 return;
1855         }
1856
1857         fr = session->frame_rate();
1858
1859         /* to prevent 'flashing' */
1860         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
1861                 lower -= spacer;
1862         } else {
1863                 lower = 0;
1864         }
1865         upper += spacer;
1866         range = (nframes64_t) (upper - lower);
1867
1868         if (range <  (fr / 50)) {
1869                 minsec_mark_interval =  fr / 1000; /* show 1/1000 seconds */
1870                 minsec_ruler_scale = minsec_show_frames;
1871                 minsec_mark_modulo = 10;
1872         } else if (range <= (fr / 10)) { /* 0-0.1 second */
1873                 minsec_mark_interval = fr / 1000; /* show 1/1000 seconds */
1874                 minsec_ruler_scale = minsec_show_frames;
1875                 minsec_mark_modulo = 10;
1876         } else if (range <= (fr / 2)) { /* 0-0.5 second */
1877                 minsec_mark_interval = fr / 100;  /* show 1/100 seconds */
1878                 minsec_ruler_scale = minsec_show_frames;
1879                 minsec_mark_modulo = 100;
1880         } else if (range <= fr) { /* 0-1 second */
1881                 minsec_mark_interval = fr / 10;  /* show 1/10 seconds */
1882                 minsec_ruler_scale = minsec_show_frames;
1883                 minsec_mark_modulo = 200;
1884         } else if (range <= 2 * fr) { /* 1-2 seconds */
1885                 minsec_mark_interval = fr / 10; /* show 1/10 seconds */
1886                 minsec_ruler_scale = minsec_show_frames;
1887                 minsec_mark_modulo = 500;
1888         } else if (range <= 8 * fr) { /* 2-5 seconds */
1889                 minsec_mark_interval =  fr / 5; /* show 2 seconds */
1890                 minsec_ruler_scale = minsec_show_frames;
1891                 minsec_mark_modulo = 1000;
1892         } else if (range <= 16 * fr) { /* 8-16 seconds */
1893                 minsec_mark_interval =  fr; /* show 1 seconds */
1894                 minsec_ruler_scale = minsec_show_seconds;
1895                 minsec_mark_modulo = 2;
1896         } else if (range <= 30 * fr) { /* 10-30 seconds */
1897                 minsec_mark_interval =  fr; /* show 1 seconds */
1898                 minsec_ruler_scale = minsec_show_seconds;
1899                 minsec_mark_modulo = 5;
1900         } else if (range <= 60 * fr) { /* 30-60 seconds */
1901                 minsec_mark_interval = fr; /* show 1 seconds */
1902                 minsec_ruler_scale = minsec_show_seconds;
1903                 minsec_mark_modulo = 5;
1904         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1905                 minsec_mark_interval = 5 * fr; /* show 5 seconds */
1906                 minsec_ruler_scale = minsec_show_seconds;
1907                 minsec_mark_modulo = 3;
1908         } else if (range <= 4 * 60 * fr) { /* 4 minutes */
1909                 minsec_mark_interval = 5 * fr; /* show 10 seconds */
1910                 minsec_ruler_scale = minsec_show_seconds;
1911                 minsec_mark_modulo = 30;
1912         } else if (range <= 10 * 60 * fr) { /* 10 minutes */
1913                 minsec_mark_interval = 30 * fr; /* show 30 seconds */
1914                 minsec_ruler_scale = minsec_show_seconds;
1915                 minsec_mark_modulo = 120;
1916         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1917                 minsec_mark_interval =  60 * fr; /* show 1 minute */
1918                 minsec_ruler_scale = minsec_show_minutes;
1919                 minsec_mark_modulo = 5;
1920         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1921                 minsec_mark_interval = 2 * 60 * fr; /* show 2 minutes */
1922                 minsec_ruler_scale = minsec_show_minutes;
1923                 minsec_mark_modulo = 10;
1924         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1925                 minsec_mark_interval = 5 * 60 * fr; /* show 10 minutes */
1926                 minsec_ruler_scale = minsec_show_minutes;
1927                 minsec_mark_modulo = 30;
1928         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1929                 minsec_mark_interval = 20 * 60 * fr; /* show 20 minutes */
1930                 minsec_ruler_scale = minsec_show_minutes;
1931                 minsec_mark_modulo = 60;
1932         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1933                 minsec_mark_interval =  60 * 60 * fr; /* show 60 minutes */
1934                 minsec_ruler_scale = minsec_show_hours;
1935                 minsec_mark_modulo = 2;
1936         } else {
1937
1938                 /* not possible if nframes64_t is a 32 bit quantity */
1939
1940                 minsec_mark_interval = 4 * 60 * 60 * fr; /* show 4 hrs */
1941         }
1942         minsec_nmarks = 2 + (range / minsec_mark_interval);
1943 }
1944
1945 gint
1946 Editor::metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1947 {
1948         nframes64_t pos;
1949         nframes64_t spacer;
1950         long hrs, mins, secs, millisecs;
1951         gchar buf[16];
1952         gint n;
1953
1954         if (session == 0) {
1955                 return 0;
1956         }
1957
1958         /* to prevent 'flashing' */
1959         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
1960                 lower = lower - spacer;
1961         } else {
1962                 lower = 0;
1963         }
1964
1965         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * minsec_nmarks);
1966         pos = ((((nframes64_t) floor(lower)) + (minsec_mark_interval/2))/minsec_mark_interval) * minsec_mark_interval;
1967         switch (minsec_ruler_scale) {
1968         case minsec_show_seconds:
1969                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1970                         sample_to_clock_parts (pos, session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1971                         if (secs % minsec_mark_modulo == 0) {
1972                                 if (secs == 0) {
1973                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1974                                 } else {
1975                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1976                                 }
1977                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1978                         } else {
1979                                 snprintf (buf, sizeof(buf), " ");
1980                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1981                         }
1982                         (*marks)[n].label = g_strdup (buf);
1983                         (*marks)[n].position = pos;
1984                 }
1985           break;
1986         case minsec_show_minutes:
1987                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1988                         sample_to_clock_parts (pos, session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1989                         if (mins % minsec_mark_modulo == 0) {
1990                                 if (mins == 0) {
1991                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1992                                 } else {
1993                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1994                                 }
1995                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1996                         } else {
1997                                 snprintf (buf, sizeof(buf), " ");
1998                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1999                         }
2000                         (*marks)[n].label = g_strdup (buf);
2001                         (*marks)[n].position = pos;
2002                 }
2003           break;
2004         case minsec_show_hours:
2005                  for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
2006                         sample_to_clock_parts (pos, session->frame_rate(), &hrs, &mins, &secs, &millisecs);
2007                         if (hrs % minsec_mark_modulo == 0) {
2008                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
2009                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
2010                         } else {
2011                                 snprintf (buf, sizeof(buf), " ");
2012                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
2013                         }
2014                         (*marks)[n].label = g_strdup (buf);
2015                         (*marks)[n].position = pos;
2016                 }
2017               break;
2018         case minsec_show_frames:
2019                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
2020                         sample_to_clock_parts (pos, session->frame_rate(), &hrs, &mins, &secs, &millisecs);
2021                         if (millisecs % minsec_mark_modulo == 0) {
2022                                 if (secs == 0) {
2023                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
2024                                 } else {
2025                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
2026                                 }
2027                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
2028                         } else {
2029                                 snprintf (buf, sizeof(buf), " ");
2030                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
2031                         }
2032                         (*marks)[n].label = g_strdup (buf);
2033                         (*marks)[n].position = pos;
2034                 }
2035           break;
2036         }
2037
2038         return minsec_nmarks;
2039 }