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 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <cstdio> // for sprintf, grrr
  25 #include <cmath>
  26 #include <inttypes.h>
  27
  28 #include <string>
  29
  30 #include <gtk/gtkaction.h>
  31
  32 #include "canvas/group.h"
  33 #include "canvas/canvas.h"
  34
  35 #include "ardour/session.h"
  36 #include "ardour/tempo.h"
  37 #include "ardour/profile.h"
  38
  39 #include "gtkmm2ext/gtk_ui.h"
  40
  41 #include "editor.h"
  42 #include "editing.h"
  43 #include "actions.h"
  44 #include "gtk-custom-hruler.h"
  45 #include "gui_thread.h"
  46 #include "time_axis_view.h"
  47 #include "editor_drag.h"
  48 #include "editor_cursors.h"
  49
  50 #include "i18n.h"
  51
  52 using namespace ARDOUR;
  53 using namespace PBD;
  54 using namespace Gtk;
  55 using namespace Editing;
  56
  57 Editor *Editor::ruler_editor;
  58
  59 /* the order here must match the "metric" enums in editor.h */
  60
  61 GtkCustomMetric Editor::ruler_metrics[4] = {
  62         {1, Editor::_metric_get_timecode },
  63         {1, Editor::_metric_get_bbt },
  64         {1, Editor::_metric_get_samples },
  65         {1, Editor::_metric_get_minsec }
  66 };
  67
  68 void
  69 Editor::initialize_rulers ()
  70 {
  71         ruler_editor = this;
  72         ruler_grabbed_widget = 0;
  73
  74         _ruler_separator = new Gtk::HSeparator();
  75         _ruler_separator->set_size_request(-1, 2);
  76         _ruler_separator->set_name("TimebarPadding");
  77         _ruler_separator->show();
  78
  79         _minsec_ruler = gtk_custom_hruler_new ();
  80         minsec_ruler = Glib::wrap (_minsec_ruler);
  81         minsec_ruler->set_name ("MinSecRuler");
  82         minsec_ruler->set_size_request (-1, (int)timebar_height);
  83         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
  84         minsec_ruler->hide ();
  85         minsec_ruler->set_no_show_all();
  86
  87         _timecode_ruler = gtk_custom_hruler_new ();
  88         timecode_ruler = Glib::wrap (_timecode_ruler);
  89         timecode_ruler->set_name ("TimecodeRuler");
  90         timecode_ruler->set_size_request (-1, (int)timebar_height);
  91         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_timecode_ruler), &ruler_metrics[ruler_metric_timecode]);
  92         timecode_ruler->hide ();
  93         timecode_ruler->set_no_show_all();
  94         timecode_nmarks = 0;
  95
  96         _bbt_ruler = gtk_custom_hruler_new ();
  97         bbt_ruler = Glib::wrap (_bbt_ruler);
  98         bbt_ruler->set_name ("BBTRuler");
  99         bbt_ruler->set_size_request (-1, (int)timebar_height);
 100         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 101         bbt_ruler->hide ();
 102         bbt_ruler->set_no_show_all();
 103         bbt_nmarks = 0;
 104
 105         _samples_ruler = gtk_custom_hruler_new ();
 106         samples_ruler = Glib::wrap (_samples_ruler);
 107         samples_ruler->set_name ("SamplesRuler");
 108         samples_ruler->set_size_request (-1, (int) timebar_height);
 109         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER (_samples_ruler), &ruler_metrics[ruler_metric_samples]);
 110         samples_ruler->hide ();
 111         samples_ruler->set_no_show_all ();
 112
 113         _bbt_ruler = gtk_custom_hruler_new ();
 114         bbt_ruler = Glib::wrap (_bbt_ruler);
 115         bbt_ruler->set_name ("BBTRuler");
 116         bbt_ruler->set_size_request (-1, (int)timebar_height);
 117         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 118         bbt_ruler->hide ();
 119         bbt_ruler->set_no_show_all();
 120         minsec_ruler->hide ();
 121         minsec_ruler->set_no_show_all();
 122         minsec_nmarks = 0;
 123
 124         using namespace Box_Helpers;
 125         BoxList & ruler_lab_children =  ruler_label_vbox.children();
 126         BoxList & ruler_children =  time_canvas_vbox.children();
 127         BoxList & lab_children =  time_bars_vbox.children();
 128
 129         BoxList::iterator canvaspos = ruler_children.begin();
 130
 131         lab_children.push_back (Element(meter_label, PACK_SHRINK, PACK_START));
 132         lab_children.push_back (Element(tempo_label, PACK_SHRINK, PACK_START));
 133         lab_children.push_back (Element(range_mark_label, PACK_SHRINK, PACK_START));
 134         lab_children.push_back (Element(transport_mark_label, PACK_SHRINK, PACK_START));
 135         lab_children.push_back (Element(cd_mark_label, PACK_SHRINK, PACK_START));
 136         lab_children.push_back (Element(mark_label, PACK_SHRINK, PACK_START));
 137         lab_children.push_back (Element(videotl_label, PACK_SHRINK, PACK_START));
 138
 139         ruler_lab_children.push_back (Element(minsec_label, PACK_SHRINK, PACK_START));
 140         ruler_children.insert (canvaspos, Element(*minsec_ruler, PACK_SHRINK, PACK_START));
 141         ruler_lab_children.push_back (Element(timecode_label, PACK_SHRINK, PACK_START));
 142         ruler_children.insert (canvaspos, Element(*timecode_ruler, PACK_SHRINK, PACK_START));
 143         ruler_lab_children.push_back (Element(samples_label, PACK_SHRINK, PACK_START));
 144         ruler_children.insert (canvaspos, Element (*samples_ruler, PACK_SHRINK, PACK_START));
 145         ruler_lab_children.push_back (Element(bbt_label, PACK_SHRINK, PACK_START));
 146         ruler_children.insert (canvaspos, Element(*bbt_ruler, PACK_SHRINK, PACK_START));
 147
 148         timecode_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 149         bbt_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 150         samples_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 151         minsec_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 152
 153         timecode_ruler->signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_release));
 154         bbt_ruler->signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_release));
 155         samples_ruler->signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_release));
 156         minsec_ruler->signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_release));
 157
 158         timecode_ruler->signal_button_press_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_press));
 159         bbt_ruler->signal_button_press_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_press));
 160         samples_ruler->signal_button_press_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_press));
 161         minsec_ruler->signal_button_press_event().connect (sigc::mem_fun(*this, &Editor::ruler_button_press));
 162
 163         timecode_ruler->signal_motion_notify_event().connect (sigc::mem_fun(*this, &Editor::ruler_mouse_motion));
 164         bbt_ruler->signal_motion_notify_event().connect (sigc::mem_fun(*this, &Editor::ruler_mouse_motion));
 165         samples_ruler->signal_motion_notify_event().connect (sigc::mem_fun(*this, &Editor::ruler_mouse_motion));
 166         minsec_ruler->signal_motion_notify_event().connect (sigc::mem_fun(*this, &Editor::ruler_mouse_motion));
 167
 168         timecode_ruler->signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::ruler_scroll));
 169         bbt_ruler->signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::ruler_scroll));
 170         samples_ruler->signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::ruler_scroll));
 171         minsec_ruler->signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::ruler_scroll));
 172
 173         visible_timebars = 0; /*this will be changed below */
 174 }
 175
 176 bool
 177 Editor::ruler_scroll (GdkEventScroll* event)
 178 {
 179         framepos_t xdelta;
 180         int direction = event->direction;
 181         bool handled = false;
 182
 183         switch (direction) {
 184         case GDK_SCROLL_UP:
 185                 temporal_zoom_step (false);
 186                 handled = true;
 187                 break;
 188
 189         case GDK_SCROLL_DOWN:
 190                 temporal_zoom_step (true);
 191                 handled = true;
 192                 break;
 193
 194         case GDK_SCROLL_LEFT:
 195                 xdelta = (current_page_samples() / 2);
 196                 if (leftmost_frame > xdelta) {
 197                         reset_x_origin (leftmost_frame - xdelta);
 198                 } else {
 199                         reset_x_origin (0);
 200                 }
 201                 handled = true;
 202                 break;
 203
 204         case GDK_SCROLL_RIGHT:
 205                 xdelta = (current_page_samples() / 2);
 206                 if (max_framepos - xdelta > leftmost_frame) {
 207                         reset_x_origin (leftmost_frame + xdelta);
 208                 } else {
 209                         reset_x_origin (max_framepos - current_page_samples());
 210                 }
 211                 handled = true;
 212                 break;
 213
 214         default:
 215                 /* what? */
 216                 break;
 217         }
 218
 219         return handled;
 220 }
 221
 222
 223 bool
 224 Editor::ruler_button_press (GdkEventButton* ev)
 225 {
 226         if (_session == 0) {
 227                 return false;
 228         }
 229
 230         Widget * grab_widget = 0;
 231
 232         if (timecode_ruler->is_realized() && ev->window == timecode_ruler->get_window()->gobj()) {
 233                 grab_widget = timecode_ruler;
 234         } else if (bbt_ruler->is_realized() && ev->window == bbt_ruler->get_window()->gobj()) {
 235                 grab_widget = bbt_ruler;
 236         } else if (samples_ruler->is_realized() && ev->window == samples_ruler->get_window()->gobj()) {
 237                 grab_widget = samples_ruler;
 238         } else if (minsec_ruler->is_realized() && ev->window == minsec_ruler->get_window()->gobj()) {
 239                 grab_widget = minsec_ruler;
 240         }
 241
 242         if (grab_widget) {
 243                 grab_widget->add_modal_grab ();
 244                 ruler_grabbed_widget = grab_widget;
 245         }
 246
 247         if (ev->button == 1) {
 248                 // Since we will locate the playhead on button release, cancel any running
 249                 // auditions.
 250                 if (_session->is_auditioning()) {
 251                         _session->cancel_audition ();
 252                 }
 253
 254                 /* playhead cursor drag: CursorDrag expects an event with
 255                  * canvas coordinates, so convert from window coordinates,
 256                  * since for now, rulers are still Gtk::Widgets.
 257                  */
 258
 259                 GdkEventButton canvas_ev = *ev;
 260                 ArdourCanvas::Duple d = _track_canvas->window_to_canvas (ArdourCanvas::Duple (ev->x, ev->y));
 261                 canvas_ev.x = rint (d.x);
 262                 canvas_ev.y = rint (d.y);
 263
 264                 _drags->set (new CursorDrag (this, *playhead_cursor, false), reinterpret_cast<GdkEvent *> (&canvas_ev));
 265                 _dragging_playhead = true;
 266         }
 267
 268         return true;
 269 }
 270
 271 bool
 272 Editor::ruler_button_release (GdkEventButton* ev)
 273 {
 274         if (_session == 0) {
 275                 return false;
 276         }
 277
 278         if (_drags->active ()) {
 279                 GdkEventButton canvas_ev = *ev;
 280                 ArdourCanvas::Duple d = _track_canvas->window_to_canvas (ArdourCanvas::Duple (ev->x, ev->y));
 281                 canvas_ev.x = rint (d.x);
 282                 canvas_ev.x = rint (d.y);
 283                 _drags->end_grab (reinterpret_cast<GdkEvent*> (&canvas_ev));
 284                 _dragging_playhead = false;
 285         }
 286
 287         if (ev->button == 3) {
 288
 289                 stop_canvas_autoscroll();
 290
 291                 framepos_t where = window_event_sample ((GdkEvent*) ev);
 292
 293                 snap_to (where);
 294                 popup_ruler_menu (where);
 295         }
 296
 297         if (ruler_grabbed_widget) {
 298                 ruler_grabbed_widget->remove_modal_grab();
 299                 ruler_grabbed_widget = 0;
 300         }
 301
 302         return true;
 303 }
 304
 305 bool
 306 Editor::ruler_label_button_release (GdkEventButton* ev)
 307 {
 308         if (ev->button == 3) {
 309                 Gtk::Menu* m = dynamic_cast<Gtk::Menu*> (ActionManager::get_widget (X_("/RulerMenuPopup")));
 310                 if (m) {
 311                         m->popup (1, ev->time);
 312                 }
 313         }
 314
 315         return true;
 316 }
 317
 318
 319 bool
 320 Editor::ruler_mouse_motion (GdkEventMotion* ev)
 321 {
 322         if (_session == 0) {
 323                 return false;
 324         }
 325
 326         if (_drags->active ()) {
 327                 GdkEventMotion canvas_ev = *ev;
 328                 ArdourCanvas::Duple d = _track_canvas->window_to_canvas (ArdourCanvas::Duple (ev->x, ev->y));
 329                 canvas_ev.x = rint (d.x);
 330                 canvas_ev.y = rint (d.y);
 331                 _drags->window_motion_handler (reinterpret_cast<GdkEvent*> (&canvas_ev), false);
 332         }
 333
 334         return true;
 335 }
 336
 337
 338 void
 339 Editor::popup_ruler_menu (framepos_t where, ItemType t)
 340 {
 341         using namespace Menu_Helpers;
 342
 343         if (editor_ruler_menu == 0) {
 344                 editor_ruler_menu = new Menu;
 345                 editor_ruler_menu->set_name ("ArdourContextMenu");
 346         }
 347
 348         // always build from scratch
 349         MenuList& ruler_items = editor_ruler_menu->items();
 350         editor_ruler_menu->set_name ("ArdourContextMenu");
 351         ruler_items.clear();
 352
 353         switch (t) {
 354         case MarkerBarItem:
 355                 ruler_items.push_back (MenuElem (_("New location marker"), sigc::bind ( sigc::mem_fun(*this, &Editor::mouse_add_new_marker), where, false, false)));
 356                 ruler_items.push_back (MenuElem (_("Clear all locations"), sigc::mem_fun(*this, &Editor::clear_markers)));
 357                 ruler_items.push_back (MenuElem (_("Unhide locations"), sigc::mem_fun(*this, &Editor::unhide_markers)));
 358                 ruler_items.push_back (SeparatorElem ());
 359                 break;
 360         case RangeMarkerBarItem:
 361                 ruler_items.push_back (MenuElem (_("New range"), sigc::bind (sigc::mem_fun (*this, &Editor::mouse_add_new_range), where)));
 362                 ruler_items.push_back (MenuElem (_("Clear all ranges"), sigc::mem_fun(*this, &Editor::clear_ranges)));
 363                 ruler_items.push_back (MenuElem (_("Unhide ranges"), sigc::mem_fun(*this, &Editor::unhide_ranges)));
 364                 ruler_items.push_back (SeparatorElem ());
 365
 366                 break;
 367         case TransportMarkerBarItem:
 368
 369                 break;
 370
 371         case CdMarkerBarItem:
 372                 // TODO
 373                 ruler_items.push_back (MenuElem (_("New CD track marker"), sigc::bind ( sigc::mem_fun(*this, &Editor::mouse_add_new_marker), where, true, false)));
 374                 break;
 375
 376
 377         case TempoBarItem:
 378                 ruler_items.push_back (MenuElem (_("New Tempo"), sigc::bind ( sigc::mem_fun(*this, &Editor::mouse_add_new_tempo_event), where)));
 379                 ruler_items.push_back (SeparatorElem ());
 380                 break;
 381
 382         case MeterBarItem:
 383                 ruler_items.push_back (MenuElem (_("New Meter"), sigc::bind ( sigc::mem_fun(*this, &Editor::mouse_add_new_meter_event), where)));
 384                 ruler_items.push_back (SeparatorElem ());
 385                 break;
 386
 387         case VideoBarItem:
 388                 ruler_items.push_back (MenuElem (_("Timeline height")));
 389                 static_cast<MenuItem*>(&ruler_items.back())->set_sensitive(false);
 390                 ruler_items.push_back (CheckMenuElem (_("Large"),  sigc::bind ( sigc::mem_fun(*this, &Editor::set_video_timeline_height), 6)));
 391                 if (videotl_bar_height == 6) { static_cast<Gtk::CheckMenuItem*>(&ruler_items.back())->set_active(true);}
 392                 ruler_items.push_back (CheckMenuElem (_("Normal"), sigc::bind ( sigc::mem_fun(*this, &Editor::set_video_timeline_height), 4)));
 393                 if (videotl_bar_height == 4) { static_cast<Gtk::CheckMenuItem*>(&ruler_items.back())->set_active(true);}
 394                 ruler_items.push_back (CheckMenuElem (_("Small"),  sigc::bind ( sigc::mem_fun(*this, &Editor::set_video_timeline_height), 3)));
 395                 if (videotl_bar_height == 3) { static_cast<Gtk::CheckMenuItem*>(&ruler_items.back())->set_active(true);}
 396                 ruler_items.push_back (SeparatorElem ());
 397
 398                 ruler_items.push_back (MenuElem (_("Align Video Track")));
 399                 static_cast<MenuItem*>(&ruler_items.back())->set_sensitive(false);
 400
 401                 ruler_items.push_back (CheckMenuElem (_("Lock")));
 402                 {
 403                 Gtk::CheckMenuItem* vtl_lock = static_cast<Gtk::CheckMenuItem*>(&ruler_items.back());
 404                 vtl_lock->set_active(is_video_timeline_locked());
 405                 vtl_lock->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_video_timeline_locked));
 406                 }
 407
 408                 ruler_items.push_back (SeparatorElem ());
 409                 break;
 410
 411         default:
 412                 break;
 413         }
 414
 415         Glib::RefPtr<Action> action;
 416
 417         action = ActionManager::get_action ("Rulers", "toggle-minsec-ruler");
 418         if (action) {
 419                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 420         }
 421         if (!Profile->get_sae()) {
 422                 action = ActionManager::get_action ("Rulers", "toggle-timecode-ruler");
 423                 if (action) {
 424                         ruler_items.push_back (MenuElem (*action->create_menu_item()));
 425                 }
 426         }
 427         action = ActionManager::get_action ("Rulers", "toggle-samples-ruler");
 428         if (action) {
 429                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 430         }
 431         action = ActionManager::get_action ("Rulers", "toggle-bbt-ruler");
 432         if (action) {
 433                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 434         }
 435         action = ActionManager::get_action ("Rulers", "toggle-meter-ruler");
 436         if (action) {
 437                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 438         }
 439         action = ActionManager::get_action ("Rulers", "toggle-tempo-ruler");
 440         if (action) {
 441                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 442         }
 443         if (!Profile->get_sae()) {
 444                 action = ActionManager::get_action ("Rulers", "toggle-range-ruler");
 445                 if (action) {
 446                         ruler_items.push_back (MenuElem (*action->create_menu_item()));
 447                 }
 448         }
 449         action = ActionManager::get_action ("Rulers", "toggle-loop-punch-ruler");
 450         if (action) {
 451                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 452         }
 453         action = ActionManager::get_action ("Rulers", "toggle-cd-marker-ruler");
 454         if (action) {
 455                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 456         }
 457         action = ActionManager::get_action ("Rulers", "toggle-marker-ruler");
 458         if (action) {
 459                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 460         }
 461         action = ActionManager::get_action ("Rulers", "toggle-video-ruler");
 462         if (action) {
 463                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 464         }
 465
 466         editor_ruler_menu->popup (1, gtk_get_current_event_time());
 467
 468         no_ruler_shown_update = false;
 469 }
 470
 471 void
 472 Editor::store_ruler_visibility ()
 473 {
 474         XMLNode* node = new XMLNode(X_("RulerVisibility"));
 475
 476         node->add_property (X_("timecode"), ruler_timecode_action->get_active() ? "yes": "no");
 477         node->add_property (X_("bbt"), ruler_bbt_action->get_active() ? "yes": "no");
 478         node->add_property (X_("samples"), ruler_samples_action->get_active() ? "yes": "no");
 479         node->add_property (X_("minsec"), ruler_minsec_action->get_active() ? "yes": "no");
 480         node->add_property (X_("tempo"), ruler_tempo_action->get_active() ? "yes": "no");
 481         node->add_property (X_("meter"), ruler_meter_action->get_active() ? "yes": "no");
 482         node->add_property (X_("marker"), ruler_marker_action->get_active() ? "yes": "no");
 483         node->add_property (X_("rangemarker"), ruler_range_action->get_active() ? "yes": "no");
 484         node->add_property (X_("transportmarker"), ruler_loop_punch_action->get_active() ? "yes": "no");
 485         node->add_property (X_("cdmarker"), ruler_cd_marker_action->get_active() ? "yes": "no");
 486         node->add_property (X_("videotl"), ruler_video_action->get_active() ? "yes": "no");
 487
 488         _session->add_extra_xml (*node);
 489         _session->set_dirty ();
 490 }
 491
 492 void
 493 Editor::restore_ruler_visibility ()
 494 {
 495         XMLProperty* prop;
 496         XMLNode * node = _session->extra_xml (X_("RulerVisibility"));
 497
 498         no_ruler_shown_update = true;
 499
 500         if (node) {
 501                 if ((prop = node->property ("timecode")) != 0) {
 502                         if (string_is_affirmative (prop->value())) {
 503                                 ruler_timecode_action->set_active (true);
 504                         } else {
 505                                 ruler_timecode_action->set_active (false);
 506                         }
 507                 }
 508                 if ((prop = node->property ("bbt")) != 0) {
 509                         if (string_is_affirmative (prop->value())) {
 510                                 ruler_bbt_action->set_active (true);
 511                         } else {
 512                                 ruler_bbt_action->set_active (false);
 513                         }
 514                 }
 515                 if ((prop = node->property ("samples")) != 0) {
 516                         if (string_is_affirmative (prop->value())) {
 517                                 ruler_samples_action->set_active (true);
 518                         } else {
 519                                 ruler_samples_action->set_active (false);
 520                         }
 521                 }
 522                 if ((prop = node->property ("minsec")) != 0) {
 523                         if (string_is_affirmative (prop->value())) {
 524                                 ruler_minsec_action->set_active (true);
 525                         } else {
 526                                 ruler_minsec_action->set_active (false);
 527                         }
 528                 }
 529                 if ((prop = node->property ("tempo")) != 0) {
 530                         if (string_is_affirmative (prop->value())) {
 531                                 ruler_tempo_action->set_active (true);
 532                         } else {
 533                                 ruler_tempo_action->set_active (false);
 534                         }
 535                 }
 536                 if ((prop = node->property ("meter")) != 0) {
 537                         if (string_is_affirmative (prop->value())) {
 538                                 ruler_meter_action->set_active (true);
 539                         } else {
 540                                 ruler_meter_action->set_active (false);
 541                         }
 542                 }
 543                 if ((prop = node->property ("marker")) != 0) {
 544                         if (string_is_affirmative (prop->value())) {
 545                                 ruler_marker_action->set_active (true);
 546                         } else {
 547                                 ruler_marker_action->set_active (false);
 548                         }
 549                 }
 550                 if ((prop = node->property ("rangemarker")) != 0) {
 551                         if (string_is_affirmative (prop->value())) {
 552                                 ruler_range_action->set_active (true);
 553                         } else {
 554                                 ruler_range_action->set_active (false);
 555                         }
 556                 }
 557
 558                 if ((prop = node->property ("transportmarker")) != 0) {
 559                         if (string_is_affirmative (prop->value())) {
 560                                 ruler_loop_punch_action->set_active (true);
 561                         } else {
 562                                 ruler_loop_punch_action->set_active (false);
 563                         }
 564                 }
 565
 566                 if ((prop = node->property ("cdmarker")) != 0) {
 567                         if (string_is_affirmative (prop->value())) {
 568                                 ruler_cd_marker_action->set_active (true);
 569                         } else {
 570                                 ruler_cd_marker_action->set_active (false);
 571                         }
 572
 573                 } else {
 574                         // this _session doesn't yet know about the cdmarker ruler
 575                         // as a benefit to the user who doesn't know the feature exists, show the ruler if
 576                         // any cd marks exist
 577                         ruler_cd_marker_action->set_active (false);
 578                         const Locations::LocationList & locs = _session->locations()->list();
 579                         for (Locations::LocationList::const_iterator i = locs.begin(); i != locs.end(); ++i) {
 580                                 if ((*i)->is_cd_marker()) {
 581                                         ruler_cd_marker_action->set_active (true);
 582                                         break;
 583                                 }
 584                         }
 585                 }
 586
 587                 if ((prop = node->property ("videotl")) != 0) {
 588                         if (string_is_affirmative (prop->value())) {
 589                                 ruler_video_action->set_active (true);
 590                         } else {
 591                                 ruler_video_action->set_active (false);
 592                         }
 593                 }
 594
 595         }
 596
 597         no_ruler_shown_update = false;
 598         update_ruler_visibility ();
 599 }
 600
 601 void
 602 Editor::update_ruler_visibility ()
 603 {
 604         int visible_rulers = 0;
 605
 606         if (no_ruler_shown_update) {
 607                 return;
 608         }
 609
 610         visible_timebars = 0;
 611
 612         if (ruler_minsec_action->get_active()) {
 613                 visible_rulers++;
 614                 minsec_label.show ();
 615                 minsec_ruler->show ();
 616         } else {
 617                 minsec_label.hide ();
 618                 minsec_ruler->hide ();
 619         }
 620
 621         if (ruler_timecode_action->get_active()) {
 622                 visible_rulers++;
 623                 timecode_label.show ();
 624                 timecode_ruler->show ();
 625         } else {
 626                 timecode_label.hide ();
 627                 timecode_ruler->hide ();
 628         }
 629
 630         if (ruler_samples_action->get_active()) {
 631                 visible_rulers++;
 632                 samples_label.show ();
 633                 samples_ruler->show ();
 634         } else {
 635                 samples_label.hide ();
 636                 samples_ruler->hide ();
 637         }
 638
 639         if (ruler_bbt_action->get_active()) {
 640                 visible_rulers++;
 641                 bbt_label.show ();
 642                 bbt_ruler->show ();
 643         } else {
 644                 bbt_label.hide ();
 645                 bbt_ruler->hide ();
 646         }
 647
 648         double tbpos = 0.0;
 649         double tbgpos = 0.0;
 650         double old_unit_pos;
 651
 652 #ifdef GTKOSX
 653         /* gtk update probs require this (damn) */
 654         meter_label.hide();
 655         tempo_label.hide();
 656         range_mark_label.hide();
 657         transport_mark_label.hide();
 658         cd_mark_label.hide();
 659         mark_label.hide();
 660         videotl_label.hide();
 661 #endif
 662         if (ruler_meter_action->get_active()) {
 663                 old_unit_pos = meter_group->position().y;
 664                 if (tbpos != old_unit_pos) {
 665                         meter_group->move (ArdourCanvas::Duple (0.0, tbpos - old_unit_pos));
 666                 }
 667                 meter_group->show();
 668                 meter_label.show();
 669                 tbpos += timebar_height;
 670                 tbgpos += timebar_height;
 671                 visible_timebars++;
 672         } else {
 673                 meter_group->hide();
 674                 meter_label.hide();
 675         }
 676
 677         if (ruler_tempo_action->get_active()) {
 678                 old_unit_pos = tempo_group->position().y;
 679                 if (tbpos != old_unit_pos) {
 680                         tempo_group->move (ArdourCanvas::Duple (0.0, tbpos - old_unit_pos));
 681                 }
 682                 tempo_group->show();
 683                 tempo_label.show();
 684                 tbpos += timebar_height;
 685                 tbgpos += timebar_height;
 686                 visible_timebars++;
 687         } else {
 688                 tempo_group->hide();
 689                 tempo_label.hide();
 690         }
 691
 692         if (!Profile->get_sae() && ruler_range_action->get_active()) {
 693                 old_unit_pos = range_marker_group->position().y;
 694                 if (tbpos != old_unit_pos) {
 695                         range_marker_group->move (ArdourCanvas::Duple (0.0, tbpos - old_unit_pos));
 696                 }
 697                 range_marker_group->show();
 698                 range_mark_label.show();
 699
 700                 tbpos += timebar_height;
 701                 tbgpos += timebar_height;
 702                 visible_timebars++;
 703         } else {
 704                 range_marker_group->hide();
 705                 range_mark_label.hide();
 706         }
 707
 708         if (ruler_loop_punch_action->get_active()) {
 709                 old_unit_pos = transport_marker_group->position().y;
 710                 if (tbpos != old_unit_pos) {
 711                         transport_marker_group->move (ArdourCanvas::Duple (0.0, tbpos - old_unit_pos));
 712                 }
 713                 transport_marker_group->show();
 714                 transport_mark_label.show();
 715                 tbpos += timebar_height;
 716                 tbgpos += timebar_height;
 717                 visible_timebars++;
 718         } else {
 719                 transport_marker_group->hide();
 720                 transport_mark_label.hide();
 721         }
 722
 723         if (ruler_cd_marker_action->get_active()) {
 724                 old_unit_pos = cd_marker_group->position().y;
 725                 if (tbpos != old_unit_pos) {
 726                         cd_marker_group->move (ArdourCanvas::Duple (0.0, tbpos - old_unit_pos));
 727                 }
 728                 cd_marker_group->show();
 729                 cd_mark_label.show();
 730                 tbpos += timebar_height;
 731                 tbgpos += timebar_height;
 732                 visible_timebars++;
 733                 // make sure all cd markers show up in their respective places
 734                 update_cd_marker_display();
 735         } else {
 736                 cd_marker_group->hide();
 737                 cd_mark_label.hide();
 738                 // make sure all cd markers show up in their respective places
 739                 update_cd_marker_display();
 740         }
 741
 742         if (ruler_marker_action->get_active()) {
 743                 old_unit_pos = marker_group->position().y;
 744                 if (tbpos != old_unit_pos) {
 745                         marker_group->move (ArdourCanvas::Duple (0.0, tbpos - old_unit_pos));
 746                 }
 747                 marker_group->show();
 748                 mark_label.show();
 749                 tbpos += timebar_height;
 750                 tbgpos += timebar_height;
 751                 visible_timebars++;
 752         } else {
 753                 marker_group->hide();
 754                 mark_label.hide();
 755         }
 756
 757         if (ruler_video_action->get_active()) {
 758                 old_unit_pos = videotl_group->position().y;
 759                 if (tbpos != old_unit_pos) {
 760                         videotl_group->move (ArdourCanvas::Duple (0.0, tbpos - old_unit_pos));
 761                 }
 762                 videotl_group->show();
 763                 videotl_label.show();
 764                 tbpos += timebar_height * videotl_bar_height;
 765                 tbgpos += timebar_height * videotl_bar_height;
 766                 visible_timebars+=videotl_bar_height;
 767                 queue_visual_videotimeline_update();
 768         } else {
 769                 videotl_group->hide();
 770                 videotl_label.hide();
 771                 update_video_timeline(true);
 772         }
 773
 774         ruler_label_vbox.set_size_request (-1, (int)(timebar_height * visible_rulers));
 775         time_canvas_vbox.set_size_request (-1,-1);
 776
 777         std::cerr << "place HV group at " << timebar_height * visible_timebars << std::endl;
 778
 779         hv_scroll_group->set_y_position (timebar_height * visible_timebars);
 780
 781         compute_fixed_ruler_scale ();
 782         update_fixed_rulers();
 783         redisplay_tempo (false);
 784
 785         /* Changing ruler visibility means that any lines on markers might need updating */
 786         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
 787                 i->second->setup_lines ();
 788         }
 789 }
 790
 791 void
 792 Editor::update_just_timecode ()
 793 {
 794         ENSURE_GUI_THREAD (*this, &Editor::update_just_timecode)
 795
 796         if (_session == 0) {
 797                 return;
 798         }
 799
 800         framepos_t rightmost_frame = leftmost_frame + current_page_samples();
 801
 802         if (ruler_timecode_action->get_active()) {
 803                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_timecode_ruler), leftmost_frame, rightmost_frame,
 804                                             leftmost_frame, _session->current_end_frame());
 805         }
 806 }
 807
 808 void
 809 Editor::compute_fixed_ruler_scale ()
 810 {
 811         if (_session == 0) {
 812                 return;
 813         }
 814
 815         if (ruler_timecode_action->get_active()) {
 816                 set_timecode_ruler_scale (leftmost_frame, leftmost_frame + current_page_samples());
 817         }
 818
 819         if (ruler_minsec_action->get_active()) {
 820                 set_minsec_ruler_scale (leftmost_frame, leftmost_frame + current_page_samples());
 821         }
 822
 823         if (ruler_samples_action->get_active()) {
 824                 set_samples_ruler_scale (leftmost_frame, leftmost_frame + current_page_samples());
 825         }
 826 }
 827
 828 void
 829 Editor::update_fixed_rulers ()
 830 {
 831         framepos_t rightmost_frame;
 832
 833         if (_session == 0) {
 834                 return;
 835         }
 836
 837         compute_fixed_ruler_scale ();
 838
 839         ruler_metrics[ruler_metric_timecode].units_per_pixel = samples_per_pixel;
 840         ruler_metrics[ruler_metric_samples].units_per_pixel = samples_per_pixel;
 841         ruler_metrics[ruler_metric_minsec].units_per_pixel = samples_per_pixel;
 842
 843         rightmost_frame = leftmost_frame + current_page_samples();
 844
 845         /* these force a redraw, which in turn will force execution of the metric callbacks
 846            to compute the relevant ticks to display.
 847         */
 848
 849         if (ruler_timecode_action->get_active()) {
 850                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_timecode_ruler), leftmost_frame, rightmost_frame,
 851                                             leftmost_frame, _session->current_end_frame());
 852         }
 853
 854         if (ruler_samples_action->get_active()) {
 855                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER (_samples_ruler), leftmost_frame, rightmost_frame,
 856                                             leftmost_frame, _session->current_end_frame());
 857         }
 858
 859         if (ruler_minsec_action->get_active()) {
 860                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_minsec_ruler), leftmost_frame, rightmost_frame,
 861                                             leftmost_frame, _session->current_end_frame());
 862         }
 863 }
 864
 865 void
 866 Editor::update_tempo_based_rulers (ARDOUR::TempoMap::BBTPointList::const_iterator& begin,
 867                                     ARDOUR::TempoMap::BBTPointList::const_iterator& end)
 868 {
 869         if (_session == 0) {
 870                 return;
 871         }
 872
 873         compute_bbt_ruler_scale (leftmost_frame, leftmost_frame+current_page_samples(),
 874                                  begin, end);
 875
 876         ruler_metrics[ruler_metric_bbt].units_per_pixel = samples_per_pixel;
 877
 878         if (ruler_bbt_action->get_active()) {
 879                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_bbt_ruler), leftmost_frame, leftmost_frame+current_page_samples(),
 880                                             leftmost_frame, _session->current_end_frame());
 881         }
 882 }
 883
 884 /* Mark generation */
 885
 886 gint
 887 Editor::_metric_get_timecode (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 888 {
 889         return ruler_editor->metric_get_timecode (marks, lower, upper, maxchars);
 890 }
 891
 892 gint
 893 Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 894 {
 895         return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 896 }
 897
 898 gint
 899 Editor::_metric_get_samples (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 900 {
 901         return ruler_editor->metric_get_samples (marks, lower, upper, maxchars);
 902 }
 903
 904 gint
 905 Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 906 {
 907         return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 908 }
 909
 910 void
 911 Editor::set_timecode_ruler_scale (framepos_t lower, framepos_t upper)
 912 {
 913         framepos_t spacer;
 914         framepos_t fr;
 915
 916         if (_session == 0) {
 917                 return;
 918         }
 919
 920         fr = _session->frame_rate();
 921
 922         if (lower > (spacer = (framepos_t) (128 * Editor::get_current_zoom ()))) {
 923                 lower = lower - spacer;
 924         } else {
 925                 lower = 0;
 926         }
 927         upper = upper + spacer;
 928         framecnt_t const range = upper - lower;
 929
 930         if (range < (2 * _session->frames_per_timecode_frame())) { /* 0 - 2 frames */
 931                 timecode_ruler_scale = timecode_show_bits;
 932                 timecode_mark_modulo = 20;
 933                 timecode_nmarks = 2 + (2 * _session->config.get_subframes_per_frame());
 934         } else if (range <= (fr / 4)) { /* 2 frames - 0.250 second */
 935                 timecode_ruler_scale = timecode_show_frames;
 936                 timecode_mark_modulo = 1;
 937                 timecode_nmarks = 2 + (range / (framepos_t)_session->frames_per_timecode_frame());
 938         } else if (range <= (fr / 2)) { /* 0.25-0.5 second */
 939                 timecode_ruler_scale = timecode_show_frames;
 940                 timecode_mark_modulo = 2;
 941                 timecode_nmarks = 2 + (range / (framepos_t)_session->frames_per_timecode_frame());
 942         } else if (range <= fr) { /* 0.5-1 second */
 943                 timecode_ruler_scale = timecode_show_frames;
 944                 timecode_mark_modulo = 5;
 945                 timecode_nmarks = 2 + (range / (framepos_t)_session->frames_per_timecode_frame());
 946         } else if (range <= 2 * fr) { /* 1-2 seconds */
 947                 timecode_ruler_scale = timecode_show_frames;
 948                 timecode_mark_modulo = 10;
 949                 timecode_nmarks = 2 + (range / (framepos_t)_session->frames_per_timecode_frame());
 950         } else if (range <= 8 * fr) { /* 2-8 seconds */
 951                 timecode_ruler_scale = timecode_show_seconds;
 952                 timecode_mark_modulo = 1;
 953                 timecode_nmarks = 2 + (range / fr);
 954         } else if (range <= 16 * fr) { /* 8-16 seconds */
 955                 timecode_ruler_scale = timecode_show_seconds;
 956                 timecode_mark_modulo = 2;
 957                 timecode_nmarks = 2 + (range / fr);
 958         } else if (range <= 30 * fr) { /* 16-30 seconds */
 959                 timecode_ruler_scale = timecode_show_seconds;
 960                 timecode_mark_modulo = 5;
 961                 timecode_nmarks = 2 + (range / fr);
 962         } else if (range <= 60 * fr) { /* 30-60 seconds */
 963                 timecode_ruler_scale = timecode_show_seconds;
 964                 timecode_mark_modulo = 5;
 965                 timecode_nmarks = 2 + (range / fr);
 966         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
 967                 timecode_ruler_scale = timecode_show_seconds;
 968                 timecode_mark_modulo = 15;
 969                 timecode_nmarks = 2 + (range / fr);
 970         } else if (range <= 4 * 60 * fr) { /* 2-4 minutes */
 971                 timecode_ruler_scale = timecode_show_seconds;
 972                 timecode_mark_modulo = 30;
 973                 timecode_nmarks = 2 + (range / fr);
 974         } else if (range <= 10 * 60 * fr) { /* 4-10 minutes */
 975                 timecode_ruler_scale = timecode_show_minutes;
 976                 timecode_mark_modulo = 2;
 977                 timecode_nmarks = 2 + 10;
 978         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
 979                 timecode_ruler_scale = timecode_show_minutes;
 980                 timecode_mark_modulo = 5;
 981                 timecode_nmarks = 2 + 30;
 982         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
 983                 timecode_ruler_scale = timecode_show_minutes;
 984                 timecode_mark_modulo = 10;
 985                 timecode_nmarks = 2 + 60;
 986         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
 987                 timecode_ruler_scale = timecode_show_minutes;
 988                 timecode_mark_modulo = 30;
 989                 timecode_nmarks = 2 + (60 * 4);
 990         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
 991                 timecode_ruler_scale = timecode_show_hours;
 992                 timecode_mark_modulo = 1;
 993                 timecode_nmarks = 2 + 8;
 994         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
 995                 timecode_ruler_scale = timecode_show_hours;
 996                 timecode_mark_modulo = 1;
 997                 timecode_nmarks = 2 + 24;
 998         } else {
 999
1000                 /* not possible if framepos_t is a 32 bit quantity */
1001
1002                 timecode_ruler_scale = timecode_show_hours;
1003                 timecode_mark_modulo = 4;
1004                 timecode_nmarks = 2 + 24;
1005         }
1006
1007 }
1008
1009 gint
1010 Editor::metric_get_timecode (GtkCustomRulerMark **marks, gdouble lower, gdouble /*upper*/, gint /*maxchars*/)
1011 {
1012         framepos_t pos;
1013         framecnt_t spacer;
1014         Timecode::Time timecode;
1015         gchar buf[16];
1016         gint n;
1017
1018         if (_session == 0) {
1019                 return 0;
1020         }
1021
1022         if (lower > (spacer = (framecnt_t)(128 * Editor::get_current_zoom ()))) {
1023                 lower = lower - spacer;
1024         } else {
1025                 lower = 0;
1026         }
1027
1028         pos = (framecnt_t) floor (lower);
1029
1030         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * timecode_nmarks);
1031         switch (timecode_ruler_scale) {
1032         case timecode_show_bits:
1033
1034                 // Find timecode time of this sample (pos) with subframe accuracy
1035                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, true /* use_subframes */ );
1036
1037                 for (n = 0; n < timecode_nmarks; n++) {
1038                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, true /* use_subframes */ );
1039                         if ((timecode.subframes % timecode_mark_modulo) == 0) {
1040                                 if (timecode.subframes == 0) {
1041                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1042                                         snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1043                                 } else {
1044                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1045                                         snprintf (buf, sizeof(buf), ".%02u", timecode.subframes);
1046                                 }
1047                         } else {
1048                                 snprintf (buf, sizeof(buf)," ");
1049                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1050
1051                         }
1052                         (*marks)[n].label = g_strdup (buf);
1053                         (*marks)[n].position = pos;
1054
1055                         // Increment subframes by one
1056                         Timecode::increment_subframes( timecode, _session->config.get_subframes_per_frame() );
1057                 }
1058           break;
1059         case timecode_show_seconds:
1060                 // Find timecode time of this sample (pos)
1061                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, false /* use_subframes */ );
1062                 // Go to next whole second down
1063                 Timecode::seconds_floor( timecode );
1064
1065                 for (n = 0; n < timecode_nmarks; n++) {
1066                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, false /* use_subframes */ );
1067                         if ((timecode.seconds % timecode_mark_modulo) == 0) {
1068                                 if (timecode.seconds == 0) {
1069                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1070                                         (*marks)[n].position = pos;
1071                                 } else {
1072                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1073                                         (*marks)[n].position = pos;
1074                                 }
1075                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1076                         } else {
1077                                 snprintf (buf, sizeof(buf)," ");
1078                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1079                                 (*marks)[n].position = pos;
1080
1081                         }
1082                         (*marks)[n].label = g_strdup (buf);
1083                         Timecode::increment_seconds( timecode, _session->config.get_subframes_per_frame() );
1084                 }
1085           break;
1086         case timecode_show_minutes:
1087                 // Find timecode time of this sample (pos)
1088                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, false /* use_subframes */ );
1089                 // Go to next whole minute down
1090                 Timecode::minutes_floor( timecode );
1091
1092                 for (n = 0; n < timecode_nmarks; n++) {
1093                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, false /* use_subframes */ );
1094                         if ((timecode.minutes % timecode_mark_modulo) == 0) {
1095                                 if (timecode.minutes == 0) {
1096                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1097                                 } else {
1098                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1099                                 }
1100                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1101                         } else {
1102                                 snprintf (buf, sizeof(buf)," ");
1103                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1104
1105                         }
1106                         (*marks)[n].label = g_strdup (buf);
1107                         (*marks)[n].position = pos;
1108
1109                         Timecode::increment_minutes( timecode, _session->config.get_subframes_per_frame() );
1110                 }
1111
1112           break;
1113         case timecode_show_hours:
1114                 // Find timecode time of this sample (pos)
1115                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, false /* use_subframes */ );
1116                 // Go to next whole hour down
1117                 Timecode::hours_floor( timecode );
1118
1119                 for (n = 0; n < timecode_nmarks; n++) {
1120                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, false /* use_subframes */ );
1121                         if ((timecode.hours % timecode_mark_modulo) == 0) {
1122                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1123                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1124                         } else {
1125                                 snprintf (buf, sizeof(buf)," ");
1126                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1127
1128                         }
1129                         (*marks)[n].label = g_strdup (buf);
1130                         (*marks)[n].position = pos;
1131
1132                         Timecode::increment_hours( timecode, _session->config.get_subframes_per_frame() );
1133                 }
1134           break;
1135         case timecode_show_frames:
1136                 // Find timecode time of this sample (pos)
1137                 _session->sample_to_timecode(pos, timecode, true /* use_offset */, false /* use_subframes */ );
1138                 // Go to next whole frame down
1139                 Timecode::frames_floor( timecode );
1140
1141                 for (n = 0; n < timecode_nmarks; n++) {
1142                         _session->timecode_to_sample(timecode, pos, true /* use_offset */, false /* use_subframes */ );
1143                         if ((timecode.frames % timecode_mark_modulo) == 0)  {
1144                                 if (timecode.frames == 0) {
1145                                   (*marks)[n].style = GtkCustomRulerMarkMajor;
1146                                 } else {
1147                                   (*marks)[n].style = GtkCustomRulerMarkMinor;
1148                                 }
1149                                 (*marks)[n].position = pos;
1150                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", timecode.negative ? "-" : "", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
1151                         } else {
1152                                 snprintf (buf, sizeof(buf)," ");
1153                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1154                                 (*marks)[n].position = pos;
1155
1156                         }
1157                         (*marks)[n].label = g_strdup (buf);
1158                         Timecode::increment( timecode, _session->config.get_subframes_per_frame() );
1159                 }
1160
1161           break;
1162         }
1163
1164         return timecode_nmarks;
1165 }
1166
1167
1168 void
1169 Editor::compute_bbt_ruler_scale (framepos_t lower, framepos_t upper,
1170                                  ARDOUR::TempoMap::BBTPointList::const_iterator begin,
1171                                  ARDOUR::TempoMap::BBTPointList::const_iterator end)
1172 {
1173         if (_session == 0) {
1174                 return;
1175         }
1176
1177         TempoMap::BBTPointList::const_iterator i;
1178         Timecode::BBT_Time lower_beat, upper_beat; // the beats at each end of the ruler
1179
1180         _session->bbt_time (lower, lower_beat);
1181         _session->bbt_time (upper, upper_beat);
1182         uint32_t beats = 0;
1183
1184         bbt_accent_modulo = 1;
1185         bbt_bar_helper_on = false;
1186         bbt_bars = 0;
1187         bbt_nmarks = 1;
1188
1189         bbt_ruler_scale =  bbt_over;
1190
1191         switch (_snap_type) {
1192         case SnapToBeatDiv2:
1193                 bbt_beat_subdivision = 2;
1194                 break;
1195         case SnapToBeatDiv3:
1196                 bbt_beat_subdivision = 3;
1197                 break;
1198         case SnapToBeatDiv4:
1199                 bbt_beat_subdivision = 4;
1200                 break;
1201         case SnapToBeatDiv5:
1202                 bbt_beat_subdivision = 5;
1203                 bbt_accent_modulo = 2; // XXX YIKES
1204                 break;
1205         case SnapToBeatDiv6:
1206                 bbt_beat_subdivision = 6;
1207                 bbt_accent_modulo = 2; // XXX YIKES
1208                 break;
1209         case SnapToBeatDiv7:
1210                 bbt_beat_subdivision = 7;
1211                 bbt_accent_modulo = 2; // XXX YIKES
1212                 break;
1213         case SnapToBeatDiv8:
1214                 bbt_beat_subdivision = 8;
1215                 bbt_accent_modulo = 2;
1216                 break;
1217         case SnapToBeatDiv10:
1218                 bbt_beat_subdivision = 10;
1219                 bbt_accent_modulo = 2; // XXX YIKES
1220                 break;
1221         case SnapToBeatDiv12:
1222                 bbt_beat_subdivision = 12;
1223                 bbt_accent_modulo = 3;
1224                 break;
1225         case SnapToBeatDiv14:
1226                 bbt_beat_subdivision = 14;
1227                 bbt_accent_modulo = 3; // XXX YIKES!
1228                 break;
1229         case SnapToBeatDiv16:
1230                 bbt_beat_subdivision = 16;
1231                 bbt_accent_modulo = 4;
1232                 break;
1233         case SnapToBeatDiv20:
1234                 bbt_beat_subdivision = 20;
1235                 bbt_accent_modulo = 5;
1236                 break;
1237         case SnapToBeatDiv24:
1238                 bbt_beat_subdivision = 24;
1239                 bbt_accent_modulo = 6;
1240                 break;
1241         case SnapToBeatDiv28:
1242                 bbt_beat_subdivision = 28;
1243                 bbt_accent_modulo = 7;
1244                 break;
1245         case SnapToBeatDiv32:
1246                 bbt_beat_subdivision = 32;
1247                 bbt_accent_modulo = 8;
1248                 break;
1249         case SnapToBeatDiv64:
1250                 bbt_beat_subdivision = 64;
1251                 bbt_accent_modulo = 8;
1252                 break;
1253         case SnapToBeatDiv128:
1254                 bbt_beat_subdivision = 128;
1255                 bbt_accent_modulo = 8;
1256                 break;
1257         default:
1258                 bbt_beat_subdivision = 4;
1259                 break;
1260         }
1261
1262         if (distance (begin, end) == 0) {
1263                 return;
1264         }
1265
1266         i = end;
1267         i--;
1268         if ((*i).beat >= (*begin).beat) {
1269                 bbt_bars = (*i).bar - (*begin).bar;
1270         } else {
1271                 bbt_bars = (*i).bar - (*begin).bar - 1;
1272         }
1273         beats = distance (begin, end) - bbt_bars;
1274
1275         /* Only show the bar helper if there aren't many bars on the screen */
1276         if ((bbt_bars < 2) || (beats < 5)) {
1277                 bbt_bar_helper_on = true;
1278         }
1279
1280         if (bbt_bars > 8192) {
1281                 bbt_ruler_scale =  bbt_over;
1282         } else if (bbt_bars > 1024) {
1283                 bbt_ruler_scale = bbt_show_64;
1284         } else if (bbt_bars > 256) {
1285                 bbt_ruler_scale = bbt_show_16;
1286         } else if (bbt_bars > 64) {
1287                 bbt_ruler_scale = bbt_show_4;
1288         } else if (bbt_bars > 10) {
1289                 bbt_ruler_scale =  bbt_show_1;
1290         } else if (bbt_bars > 2) {
1291                 bbt_ruler_scale =  bbt_show_beats;
1292         } else  if (bbt_bars > 0) {
1293                 bbt_ruler_scale =  bbt_show_ticks;
1294         } else {
1295                 bbt_ruler_scale =  bbt_show_ticks_detail;
1296         }
1297
1298         if ((bbt_ruler_scale == bbt_show_ticks_detail) && (lower_beat.beats == upper_beat.beats) && (upper_beat.ticks - lower_beat.ticks <= Timecode::BBT_Time::ticks_per_beat / 4)) {
1299                 bbt_ruler_scale =  bbt_show_ticks_super_detail;
1300         }
1301 }
1302
1303 gint
1304 Editor::metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint /*maxchars*/)
1305 {
1306         if (_session == 0) {
1307                 return 0;
1308         }
1309
1310         TempoMap::BBTPointList::const_iterator i;
1311
1312         char buf[64];
1313         gint  n = 0;
1314         framepos_t pos;
1315         Timecode::BBT_Time next_beat;
1316         framepos_t next_beat_pos;
1317         uint32_t beats = 0;
1318
1319         uint32_t tick = 0;
1320         uint32_t skip;
1321         uint32_t t;
1322         framepos_t frame_skip;
1323         double frame_skip_error;
1324         double bbt_position_of_helper;
1325         double accumulated_error;
1326         bool i_am_accented = false;
1327         bool helper_active = false;
1328
1329         ARDOUR::TempoMap::BBTPointList::const_iterator begin;
1330         ARDOUR::TempoMap::BBTPointList::const_iterator end;
1331
1332         compute_current_bbt_points (lower, upper, begin, end);
1333
1334         if (distance (begin, end) == 0) {
1335                 return 0;
1336         }
1337
1338         switch (bbt_ruler_scale) {
1339
1340         case bbt_show_beats:
1341                 beats = distance (begin, end);
1342                 bbt_nmarks = beats + 2;
1343
1344                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1345
1346                 (*marks)[0].label = g_strdup(" ");
1347                 (*marks)[0].position = lower;
1348                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1349
1350                 for (n = 1, i = begin; n < bbt_nmarks && i != end; ++i) {
1351
1352                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1353                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1354                                 (*marks)[0].label = g_strdup (buf);
1355                                 helper_active = true;
1356                         } else {
1357
1358                                 if ((*i).is_bar()) {
1359                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1360                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1361                                 } else if (((*i).beat % 2 == 1)) {
1362                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1363                                         snprintf (buf, sizeof(buf), " ");
1364                                 } else {
1365                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1366                                         snprintf (buf, sizeof(buf), " ");
1367                                 }
1368                                 (*marks)[n].label =  g_strdup (buf);
1369                                 (*marks)[n].position = (*i).frame;
1370                                 n++;
1371                         }
1372                 }
1373                 break;
1374
1375         case bbt_show_ticks:
1376
1377                 beats = distance (begin, end);
1378                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1379
1380                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1381                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1382
1383                 (*marks)[0].label = g_strdup(" ");
1384                 (*marks)[0].position = lower;
1385                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1386
1387                 for (n = 1, i = begin; n < bbt_nmarks && i != end; ++i) {
1388
1389                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1390                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1391                                 (*marks)[0].label = g_strdup (buf);
1392                                 helper_active = true;
1393                         } else {
1394
1395                                 if ((*i).is_bar()) {
1396                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1397                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1398                                 } else {
1399                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1400                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1401                                 }
1402                                 if (((*i).frame < bbt_position_of_helper) && helper_active) {
1403                                         snprintf (buf, sizeof(buf), " ");
1404                                 }
1405                                 (*marks)[n].label =  g_strdup (buf);
1406                                 (*marks)[n].position = (*i).frame;
1407                                 n++;
1408                         }
1409
1410                         /* Add the tick marks */
1411
1412                         /* Find the next beat */
1413                         next_beat.beats = (*i).beat;
1414                         next_beat.bars = (*i).bar;
1415                         next_beat.ticks = 0;
1416
1417                         if ((*i).meter->divisions_per_bar() > (next_beat.beats + 1)) {
1418                                   next_beat.beats += 1;
1419                         } else {
1420                                   next_beat.bars += 1;
1421                                   next_beat.beats = 1;
1422                         }
1423
1424                         next_beat_pos = _session->tempo_map().frame_time(next_beat);
1425
1426                         frame_skip = (framepos_t) floor (frame_skip_error = (_session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1427                         frame_skip_error -= frame_skip;
1428                         skip = (uint32_t) (Timecode::BBT_Time::ticks_per_beat / bbt_beat_subdivision);
1429
1430                         pos = (*i).frame + frame_skip;
1431                         accumulated_error = frame_skip_error;
1432
1433                         tick = skip;
1434
1435                         for (t = 0; (tick < Timecode::BBT_Time::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1436
1437                                 if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1438                                         i_am_accented = true;
1439                                 }
1440
1441                                 snprintf (buf, sizeof(buf), " ");
1442                                 (*marks)[n].label = g_strdup (buf);
1443
1444                                 /* Error compensation for float to framepos_t*/
1445                                 accumulated_error += frame_skip_error;
1446                                 if (accumulated_error > 1) {
1447                                         pos += 1;
1448                                         accumulated_error -= 1.0f;
1449                                 }
1450
1451                                 (*marks)[n].position = pos;
1452
1453                                 if ((bbt_beat_subdivision > 4) && i_am_accented) {
1454                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1455                                 } else {
1456                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1457                                 }
1458                                 i_am_accented = false;
1459                                 n++;
1460                         }
1461                 }
1462
1463           break;
1464
1465         case bbt_show_ticks_detail:
1466
1467                 beats = distance (begin, end);
1468                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1469
1470                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1471                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1472
1473                 (*marks)[0].label = g_strdup(" ");
1474                 (*marks)[0].position = lower;
1475                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1476
1477                 for (n = 1,   i = begin; n < bbt_nmarks && i != end; ++i) {
1478
1479                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1480                                 snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1481                                 (*marks)[0].label = g_strdup (buf);
1482                                 helper_active = true;
1483                         } else {
1484
1485                                 if ((*i).is_bar()) {
1486                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1487                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1488                                 } else {
1489                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1490                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1491                                 }
1492                                 if (((*i).frame < bbt_position_of_helper) && helper_active) {
1493                                         snprintf (buf, sizeof(buf), " ");
1494                                 }
1495                                 (*marks)[n].label =  g_strdup (buf);
1496                                 (*marks)[n].position = (*i).frame;
1497                                 n++;
1498                         }
1499
1500                         /* Add the tick marks */
1501
1502                         /* Find the next beat */
1503
1504                         next_beat.beats = (*i).beat;
1505                         next_beat.bars = (*i).bar;
1506
1507                         if ((*i).meter->divisions_per_bar() > (next_beat.beats + 1)) {
1508                                   next_beat.beats += 1;
1509                         } else {
1510                                   next_beat.bars += 1;
1511                                   next_beat.beats = 1;
1512                         }
1513
1514                         next_beat_pos = _session->tempo_map().frame_time(next_beat);
1515
1516                         frame_skip = (framepos_t) floor (frame_skip_error = (_session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1517                         frame_skip_error -= frame_skip;
1518                         skip = (uint32_t) (Timecode::BBT_Time::ticks_per_beat / bbt_beat_subdivision);
1519
1520                         pos = (*i).frame + frame_skip;
1521                         accumulated_error = frame_skip_error;
1522
1523                         tick = skip;
1524
1525                         for (t = 0; (tick < Timecode::BBT_Time::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1526
1527                                 if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1528                                         i_am_accented = true;
1529                                 }
1530
1531                                 if (i_am_accented && (pos > bbt_position_of_helper)){
1532                                         snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1533                                 } else {
1534                                         snprintf (buf, sizeof(buf), " ");
1535                                 }
1536
1537                                 (*marks)[n].label = g_strdup (buf);
1538
1539                                 /* Error compensation for float to framepos_t*/
1540                                 accumulated_error += frame_skip_error;
1541                                 if (accumulated_error > 1) {
1542                                         pos += 1;
1543                                         accumulated_error -= 1.0f;
1544                                 }
1545
1546                                 (*marks)[n].position = pos;
1547
1548                                 if ((bbt_beat_subdivision > 4) && i_am_accented) {
1549                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1550                                 } else {
1551                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1552                                 }
1553                                 i_am_accented = false;
1554                                 n++;
1555                         }
1556                 }
1557
1558           break;
1559
1560         case bbt_show_ticks_super_detail:
1561
1562                 beats = distance (begin, end);
1563                 bbt_nmarks = (beats + 2) * bbt_beat_subdivision;
1564
1565                 bbt_position_of_helper = lower + (30 * Editor::get_current_zoom ());
1566                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1567
1568                 (*marks)[0].label = g_strdup(" ");
1569                 (*marks)[0].position = lower;
1570                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1571
1572                 for (n = 1,   i = begin; n < bbt_nmarks && i != end; ++i) {
1573
1574                         if ((*i).frame < lower && (bbt_bar_helper_on)) {
1575                                   snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1576                                   (*marks)[0].label = g_strdup (buf);
1577                                   helper_active = true;
1578                         } else {
1579
1580                                   if ((*i).is_bar()) {
1581                                           (*marks)[n].style = GtkCustomRulerMarkMajor;
1582                                           snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1583                                   } else {
1584                                           (*marks)[n].style = GtkCustomRulerMarkMinor;
1585                                           snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1586                                   }
1587                                   if (((*i).frame < bbt_position_of_helper) && helper_active) {
1588                                           snprintf (buf, sizeof(buf), " ");
1589                                   }
1590                                   (*marks)[n].label =  g_strdup (buf);
1591                                   (*marks)[n].position = (*i).frame;
1592                                   n++;
1593                         }
1594
1595                         /* Add the tick marks */
1596
1597                         /* Find the next beat */
1598
1599                         next_beat.beats = (*i).beat;
1600                         next_beat.bars = (*i).bar;
1601
1602                         if ((*i).meter->divisions_per_bar() > (next_beat.beats + 1)) {
1603                                   next_beat.beats += 1;
1604                         } else {
1605                                   next_beat.bars += 1;
1606                                   next_beat.beats = 1;
1607                         }
1608
1609                         next_beat_pos = _session->tempo_map().frame_time(next_beat);
1610
1611                         frame_skip = (framepos_t) floor (frame_skip_error = (_session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1612                         frame_skip_error -= frame_skip;
1613                         skip = (uint32_t) (Timecode::BBT_Time::ticks_per_beat / bbt_beat_subdivision);
1614
1615                         pos = (*i).frame + frame_skip;
1616                         accumulated_error = frame_skip_error;
1617
1618                         tick = skip;
1619
1620                         for (t = 0; (tick < Timecode::BBT_Time::ticks_per_beat) && (n < bbt_nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1621
1622                                   if (t % bbt_accent_modulo == (bbt_accent_modulo - 1)) {
1623                                           i_am_accented = true;
1624                                   }
1625
1626                                   if (pos > bbt_position_of_helper) {
1627                                           snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1628                                   } else {
1629                                           snprintf (buf, sizeof(buf), " ");
1630                                   }
1631
1632                                   (*marks)[n].label = g_strdup (buf);
1633
1634                                   /* Error compensation for float to framepos_t*/
1635                                   accumulated_error += frame_skip_error;
1636                                   if (accumulated_error > 1) {
1637                                           pos += 1;
1638                                           accumulated_error -= 1.0f;
1639                                   }
1640
1641                                   (*marks)[n].position = pos;
1642
1643                                   if ((bbt_beat_subdivision > 4) && i_am_accented) {
1644                                           (*marks)[n].style = GtkCustomRulerMarkMinor;
1645                                   } else {
1646                                           (*marks)[n].style = GtkCustomRulerMarkMicro;
1647                                   }
1648                                   i_am_accented = false;
1649                                   n++;
1650                         }
1651                 }
1652
1653           break;
1654
1655         case bbt_over:
1656                         bbt_nmarks = 1;
1657                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1658                         snprintf (buf, sizeof(buf), "cannot handle %" PRIu32 " bars", bbt_bars );
1659                         (*marks)[0].style = GtkCustomRulerMarkMajor;
1660                         (*marks)[0].label = g_strdup (buf);
1661                         (*marks)[0].position = lower;
1662                         n = 1;
1663
1664           break;
1665
1666         case bbt_show_64:
1667                         bbt_nmarks = (gint) (bbt_bars / 64) + 1;
1668                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1669                         for (n = 0,   i = begin; i != end && n < bbt_nmarks; i++) {
1670                                 if ((*i).is_bar()) {
1671                                         if ((*i).bar % 64 == 1) {
1672                                                 if ((*i).bar % 256 == 1) {
1673                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1674                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1675                                                 } else {
1676                                                         snprintf (buf, sizeof(buf), " ");
1677                                                         if ((*i).bar % 256 == 129)  {
1678                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1679                                                         } else {
1680                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1681                                                         }
1682                                                 }
1683                                                 (*marks)[n].label = g_strdup (buf);
1684                                                 (*marks)[n].position = (*i).frame;
1685                                                 n++;
1686                                         }
1687                                 }
1688                         }
1689                         break;
1690
1691         case bbt_show_16:
1692                 bbt_nmarks = (bbt_bars / 16) + 1;
1693                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1694                 for (n = 0,  i = begin; i != end && n < bbt_nmarks; i++) {
1695                         if ((*i).is_bar()) {
1696                           if ((*i).bar % 16 == 1) {
1697                                 if ((*i).bar % 64 == 1) {
1698                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1699                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1700                                 } else {
1701                                         snprintf (buf, sizeof(buf), " ");
1702                                         if ((*i).bar % 64 == 33)  {
1703                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1704                                         } else {
1705                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1706                                         }
1707                                 }
1708                                 (*marks)[n].label = g_strdup (buf);
1709                                 (*marks)[n].position = (*i).frame;
1710                                 n++;
1711                           }
1712                         }
1713                 }
1714           break;
1715
1716         case bbt_show_4:
1717                 bbt_nmarks = (bbt_bars / 4) + 1;
1718                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks);
1719                 for (n = 0,   i = begin; i != end && n < bbt_nmarks; ++i) {
1720                         if ((*i).is_bar()) {
1721                           if ((*i).bar % 4 == 1) {
1722                                 if ((*i).bar % 16 == 1) {
1723                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1724                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1725                                 } else {
1726                                         snprintf (buf, sizeof(buf), " ");
1727                                         if ((*i).bar % 16 == 9)  {
1728                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1729                                         } else {
1730                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1731                                         }
1732                                 }
1733                                 (*marks)[n].label = g_strdup (buf);
1734                                 (*marks)[n].position = (*i).frame;
1735                                 n++;
1736                           }
1737                         }
1738                 }
1739           break;
1740
1741         case bbt_show_1:
1742   //    default:
1743                 bbt_nmarks = bbt_bars + 2;
1744                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * bbt_nmarks );
1745                 for (n = 0,  i = begin; i != end && n < bbt_nmarks; i++) {
1746                         if ((*i).is_bar()) {
1747                           if ((*i).bar % 4 == 1) {
1748                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1749                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1750                           } else {
1751                                 snprintf (buf, sizeof(buf), " ");
1752                                 if ((*i).bar % 4 == 3)  {
1753                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1754                                 } else {
1755                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1756                                 }
1757                           }
1758                         (*marks)[n].label = g_strdup (buf);
1759                         (*marks)[n].position = (*i).frame;
1760                         n++;
1761                         }
1762                 }
1763
1764         break;
1765
1766         }
1767
1768         return n; //return the actual number of marks made, since we might have skipped some from fractional time signatures
1769
1770 }
1771
1772 void
1773 Editor::set_samples_ruler_scale (framepos_t lower, framepos_t upper)
1774 {
1775         _samples_ruler_interval = (upper - lower) / 5;
1776 }
1777
1778 gint
1779 Editor::metric_get_samples (GtkCustomRulerMark **marks, gdouble lower, gdouble /*upper*/, gint /*maxchars*/)
1780 {
1781         framepos_t pos;
1782         framepos_t const ilower = (framepos_t) floor (lower);
1783         gchar buf[16];
1784         gint nmarks;
1785         gint n;
1786
1787         if (_session == 0) {
1788                 return 0;
1789         }
1790
1791         nmarks = 5;
1792         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1793         for (n = 0, pos = ilower; n < nmarks; pos += _samples_ruler_interval, ++n) {
1794                 snprintf (buf, sizeof(buf), "%" PRIi64, pos);
1795                 (*marks)[n].label = g_strdup (buf);
1796                 (*marks)[n].position = pos;
1797                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1798         }
1799
1800         return nmarks;
1801 }
1802
1803 static void
1804 sample_to_clock_parts ( framepos_t sample,
1805                         framepos_t sample_rate,
1806                         long *hrs_p,
1807                         long *mins_p,
1808                         long *secs_p,
1809                         long *millisecs_p)
1810
1811 {
1812         framepos_t left;
1813         long hrs;
1814         long mins;
1815         long secs;
1816         long millisecs;
1817
1818         left = sample;
1819         hrs = left / (sample_rate * 60 * 60 * 1000);
1820         left -= hrs * sample_rate * 60 * 60 * 1000;
1821         mins = left / (sample_rate * 60 * 1000);
1822         left -= mins * sample_rate * 60 * 1000;
1823         secs = left / (sample_rate * 1000);
1824         left -= secs * sample_rate * 1000;
1825         millisecs = left / sample_rate;
1826
1827         *millisecs_p = millisecs;
1828         *secs_p = secs;
1829         *mins_p = mins;
1830         *hrs_p = hrs;
1831
1832         return;
1833 }
1834
1835 void
1836 Editor::set_minsec_ruler_scale (framepos_t lower, framepos_t upper)
1837 {
1838         framepos_t fr;
1839         framepos_t spacer;
1840
1841         if (_session == 0) {
1842                 return;
1843         }
1844
1845         fr = _session->frame_rate() * 1000;
1846
1847         /* to prevent 'flashing' */
1848         if (lower > (spacer = (framepos_t)(128 * Editor::get_current_zoom ()))) {
1849                 lower -= spacer;
1850         } else {
1851                 lower = 0;
1852         }
1853         upper += spacer;
1854         framecnt_t const range = (upper - lower) * 1000;
1855
1856         if (range <  (fr / 50)) {
1857                 minsec_mark_interval =  fr / 1000; /* show 1/1000 seconds */
1858                 minsec_ruler_scale = minsec_show_frames;
1859                 minsec_mark_modulo = 10;
1860         } else if (range <= (fr / 10)) { /* 0-0.1 second */
1861                 minsec_mark_interval = fr / 1000; /* show 1/1000 seconds */
1862                 minsec_ruler_scale = minsec_show_frames;
1863                 minsec_mark_modulo = 10;
1864         } else if (range <= (fr / 2)) { /* 0-0.5 second */
1865                 minsec_mark_interval = fr / 100;  /* show 1/100 seconds */
1866                 minsec_ruler_scale = minsec_show_frames;
1867                 minsec_mark_modulo = 100;
1868         } else if (range <= fr) { /* 0-1 second */
1869                 minsec_mark_interval = fr / 10;  /* show 1/10 seconds */
1870                 minsec_ruler_scale = minsec_show_frames;
1871                 minsec_mark_modulo = 200;
1872         } else if (range <= 2 * fr) { /* 1-2 seconds */
1873                 minsec_mark_interval = fr / 10; /* show 1/10 seconds */
1874                 minsec_ruler_scale = minsec_show_frames;
1875                 minsec_mark_modulo = 500;
1876         } else if (range <= 8 * fr) { /* 2-5 seconds */
1877                 minsec_mark_interval =  fr / 5; /* show 2 seconds */
1878                 minsec_ruler_scale = minsec_show_frames;
1879                 minsec_mark_modulo = 1000;
1880         } else if (range <= 16 * fr) { /* 8-16 seconds */
1881                 minsec_mark_interval =  fr; /* show 1 seconds */
1882                 minsec_ruler_scale = minsec_show_seconds;
1883                 minsec_mark_modulo = 2;
1884         } else if (range <= 30 * fr) { /* 10-30 seconds */
1885                 minsec_mark_interval =  fr; /* show 1 seconds */
1886                 minsec_ruler_scale = minsec_show_seconds;
1887                 minsec_mark_modulo = 5;
1888         } else if (range <= 60 * fr) { /* 30-60 seconds */
1889                 minsec_mark_interval = fr; /* show 1 seconds */
1890                 minsec_ruler_scale = minsec_show_seconds;
1891                 minsec_mark_modulo = 5;
1892         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1893                 minsec_mark_interval = 5 * fr; /* show 5 seconds */
1894                 minsec_ruler_scale = minsec_show_seconds;
1895                 minsec_mark_modulo = 3;
1896         } else if (range <= 4 * 60 * fr) { /* 4 minutes */
1897                 minsec_mark_interval = 5 * fr; /* show 10 seconds */
1898                 minsec_ruler_scale = minsec_show_seconds;
1899                 minsec_mark_modulo = 30;
1900         } else if (range <= 10 * 60 * fr) { /* 10 minutes */
1901                 minsec_mark_interval = 30 * fr; /* show 30 seconds */
1902                 minsec_ruler_scale = minsec_show_seconds;
1903                 minsec_mark_modulo = 120;
1904         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1905                 minsec_mark_interval =  60 * fr; /* show 1 minute */
1906                 minsec_ruler_scale = minsec_show_minutes;
1907                 minsec_mark_modulo = 5;
1908         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1909                 minsec_mark_interval = 2 * 60 * fr; /* show 2 minutes */
1910                 minsec_ruler_scale = minsec_show_minutes;
1911                 minsec_mark_modulo = 10;
1912         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1913                 minsec_mark_interval = 5 * 60 * fr; /* show 10 minutes */
1914                 minsec_ruler_scale = minsec_show_minutes;
1915                 minsec_mark_modulo = 30;
1916         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1917                 minsec_mark_interval = 20 * 60 * fr; /* show 20 minutes */
1918                 minsec_ruler_scale = minsec_show_minutes;
1919                 minsec_mark_modulo = 60;
1920         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1921                 minsec_mark_interval =  60 * 60 * fr; /* show 60 minutes */
1922                 minsec_ruler_scale = minsec_show_hours;
1923                 minsec_mark_modulo = 2;
1924         } else {
1925
1926                 /* not possible if framepos_t is a 32 bit quantity */
1927
1928                 minsec_mark_interval = 4 * 60 * 60 * fr; /* show 4 hrs */
1929         }
1930         minsec_nmarks = 2 + (range / minsec_mark_interval);
1931 }
1932
1933 gint
1934 Editor::metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble /*upper*/, gint /*maxchars*/)
1935 {
1936         framepos_t pos;
1937         framepos_t spacer;
1938         long hrs, mins, secs, millisecs;
1939         gchar buf[16];
1940         gint n;
1941
1942         if (_session == 0) {
1943                 return 0;
1944         }
1945
1946         /* to prevent 'flashing' */
1947         if (lower > (spacer = (framepos_t) (128 * Editor::get_current_zoom ()))) {
1948                 lower = lower - spacer;
1949         } else {
1950                 lower = 0;
1951         }
1952
1953         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * minsec_nmarks);
1954         pos = (((1000 * (framepos_t) floor(lower)) + (minsec_mark_interval/2))/minsec_mark_interval) * minsec_mark_interval;
1955         switch (minsec_ruler_scale) {
1956         case minsec_show_seconds:
1957                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1958                         sample_to_clock_parts (pos, _session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1959                         if (secs % minsec_mark_modulo == 0) {
1960                                 if (secs == 0) {
1961                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1962                                 } else {
1963                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1964                                 }
1965                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1966                         } else {
1967                                 snprintf (buf, sizeof(buf), " ");
1968                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1969                         }
1970                         (*marks)[n].label = g_strdup (buf);
1971                         (*marks)[n].position = pos/1000.0;
1972                 }
1973           break;
1974         case minsec_show_minutes:
1975                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1976                         sample_to_clock_parts (pos, _session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1977                         if (mins % minsec_mark_modulo == 0) {
1978                                 if (mins == 0) {
1979                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1980                                 } else {
1981                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1982                                 }
1983                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1984                         } else {
1985                                 snprintf (buf, sizeof(buf), " ");
1986                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1987                         }
1988                         (*marks)[n].label = g_strdup (buf);
1989                         (*marks)[n].position = pos/1000.0;
1990                 }
1991           break;
1992         case minsec_show_hours:
1993                  for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
1994                         sample_to_clock_parts (pos, _session->frame_rate(), &hrs, &mins, &secs, &millisecs);
1995                         if (hrs % minsec_mark_modulo == 0) {
1996                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1997                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1998                         } else {
1999                                 snprintf (buf, sizeof(buf), " ");
2000                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
2001                         }
2002                         (*marks)[n].label = g_strdup (buf);
2003                         (*marks)[n].position = pos/1000.0;
2004                 }
2005               break;
2006         case minsec_show_frames:
2007                 for (n = 0; n < minsec_nmarks; pos += minsec_mark_interval, ++n) {
2008                         sample_to_clock_parts (pos, _session->frame_rate(), &hrs, &mins, &secs, &millisecs);
2009                         if (millisecs % minsec_mark_modulo == 0) {
2010                                 if (millisecs == 0) {
2011                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
2012                                 } else {
2013                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
2014                                 }
2015                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
2016                         } else {
2017                                 snprintf (buf, sizeof(buf), " ");
2018                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
2019                         }
2020                         (*marks)[n].label = g_strdup (buf);
2021                         (*marks)[n].position = pos/1000.0;
2022                 }
2023           break;
2024         }
2025
2026         return minsec_nmarks;
2027 }