gtk2_ardour/editor_rulers.cc

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