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->show();
  65
  66         _smpte_ruler = gtk_custom_hruler_new ();
  67         smpte_ruler = Glib::wrap (_smpte_ruler);
  68         smpte_ruler->set_name ("SMPTERuler");
  69         smpte_ruler->set_size_request (-1, (int)timebar_height);
  70         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
  71
  72         _bbt_ruler = gtk_custom_hruler_new ();
  73         bbt_ruler = Glib::wrap (_bbt_ruler);
  74         bbt_ruler->set_name ("BBTRuler");
  75         bbt_ruler->set_size_request (-1, (int)timebar_height);
  76         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
  77
  78         _frames_ruler = gtk_custom_hruler_new ();
  79         frames_ruler = Glib::wrap (_frames_ruler);
  80         frames_ruler->set_name ("FramesRuler");
  81         frames_ruler->set_size_request (-1, (int)timebar_height);
  82         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
  83
  84         _minsec_ruler = gtk_custom_hruler_new ();
  85         minsec_ruler = Glib::wrap (_minsec_ruler);
  86         minsec_ruler->set_name ("MinSecRuler");
  87         minsec_ruler->set_size_request (-1, (int)timebar_height);
  88         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
  89
  90         visible_timebars = 1; /*this will be changed below */
  91         ruler_pressed_button = 0;
  92         canvas_timebars_vsize = 0;
  93 }
  94
  95 bool
  96 Editor::ruler_scroll (GdkEventScroll* event)
  97 {
  98         nframes64_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         nframes64_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         nframes64_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, session->transport_rolling());
 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         nframes64_t where = leftmost_frame + pixel_to_frame (x);
 284
 285         /// ripped from maybe_autoscroll, and adapted to work here
 286         nframes64_t rightmost_frame = leftmost_frame + current_page_frames ();
 287
 288         if (autoscroll_timeout_tag < 0) {
 289                 if (where > rightmost_frame) {
 290                         if (rightmost_frame < max_frames) {
 291                                 start_canvas_autoscroll (1, 0);
 292                         }
 293                 } else if (where <= leftmost_frame) {
 294                         if (leftmost_frame > 0) {
 295                                 start_canvas_autoscroll (-1, 0);
 296                         }
 297                 }
 298         } else {
 299                 if (where >= leftmost_frame && where < rightmost_frame) {
 300                         stop_canvas_autoscroll ();
 301                 }
 302         }
 303         //////
 304
 305         snap_to (where);
 306
 307         Cursor* cursor = 0;
 308
 309         switch (ruler_pressed_button) {
 310         case 1:
 311                 /* transport playhead */
 312                 cursor = playhead_cursor;
 313                 break;
 314
 315         case 2:
 316                 /* edit point */
 317                 // EDIT CURSOR XXX do something useful
 318                 break;
 319
 320         default:
 321                 break;
 322         }
 323
 324         if (cursor) {
 325                 cursor->set_position (where);
 326
 327                 if (cursor == playhead_cursor) {
 328                         UpdateAllTransportClocks (cursor->current_frame);
 329                 }
 330         }
 331
 332         return TRUE;
 333 }
 334
 335
 336 void
 337 Editor::popup_ruler_menu (nframes64_t where, ItemType t)
 338 {
 339         using namespace Menu_Helpers;
 340
 341         if (editor_ruler_menu == 0) {
 342                 editor_ruler_menu = new Menu;
 343                 editor_ruler_menu->set_name ("ArdourContextMenu");
 344         }
 345
 346         // always build from scratch
 347         MenuList& ruler_items = editor_ruler_menu->items();
 348         editor_ruler_menu->set_name ("ArdourContextMenu");
 349         ruler_items.clear();
 350
 351         switch (t) {
 352         case MarkerBarItem:
 353                 ruler_items.push_back (MenuElem (_("New location marker"), bind ( mem_fun(*this, &Editor::mouse_add_new_marker), where, false, false)));
 354                 ruler_items.push_back (MenuElem (_("Clear all locations"), mem_fun(*this, &Editor::clear_markers)));
 355                 ruler_items.push_back (MenuElem (_("Unhide locations"), mem_fun(*this, &Editor::unhide_markers)));
 356                 ruler_items.push_back (SeparatorElem ());
 357                 break;
 358         case RangeMarkerBarItem:
 359                 //ruler_items.push_back (MenuElem (_("New Range")));
 360                 ruler_items.push_back (MenuElem (_("Clear all ranges"), mem_fun(*this, &Editor::clear_ranges)));
 361                 ruler_items.push_back (MenuElem (_("Unhide ranges"), mem_fun(*this, &Editor::unhide_ranges)));
 362                 ruler_items.push_back (SeparatorElem ());
 363
 364                 break;
 365         case TransportMarkerBarItem:
 366
 367                 break;
 368
 369         case CdMarkerBarItem:
 370                 // TODO
 371                 ruler_items.push_back (MenuElem (_("New CD track marker"), bind ( mem_fun(*this, &Editor::mouse_add_new_marker), where, true, false)));
 372                 break;
 373
 374
 375         case TempoBarItem:
 376                 ruler_items.push_back (MenuElem (_("New Tempo"), bind ( mem_fun(*this, &Editor::mouse_add_new_tempo_event), where)));
 377                 ruler_items.push_back (MenuElem (_("Clear tempo")));
 378                 ruler_items.push_back (SeparatorElem ());
 379                 break;
 380
 381         case MeterBarItem:
 382                 ruler_items.push_back (MenuElem (_("New Meter"), bind ( mem_fun(*this, &Editor::mouse_add_new_meter_event), where)));
 383                 ruler_items.push_back (MenuElem (_("Clear meter")));
 384                 ruler_items.push_back (SeparatorElem ());
 385                 break;
 386
 387         default:
 388                 break;
 389         }
 390
 391         Glib::RefPtr<Action> action;
 392
 393         action = ActionManager::get_action ("Rulers", "toggle-minsec-ruler");
 394         if (action) {
 395                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 396         }
 397         if (!Profile->get_sae()) {
 398                 action = ActionManager::get_action ("Rulers", "toggle-timecode-ruler");
 399                 if (action) {
 400                         ruler_items.push_back (MenuElem (*action->create_menu_item()));
 401                 }
 402         }
 403         action = ActionManager::get_action ("Rulers", "toggle-samples-ruler");
 404         if (action) {
 405                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 406         }
 407         action = ActionManager::get_action ("Rulers", "toggle-bbt-ruler");
 408         if (action) {
 409                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 410         }
 411         action = ActionManager::get_action ("Rulers", "toggle-meter-ruler");
 412         if (action) {
 413                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 414         }
 415         action = ActionManager::get_action ("Rulers", "toggle-tempo-ruler");
 416         if (action) {
 417                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 418         }
 419         if (!Profile->get_sae()) {
 420                 action = ActionManager::get_action ("Rulers", "toggle-range-ruler");
 421                 if (action) {
 422                         ruler_items.push_back (MenuElem (*action->create_menu_item()));
 423                 }
 424         }
 425         action = ActionManager::get_action ("Rulers", "toggle-loop-punch-ruler");
 426         if (action) {
 427                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 428         }
 429         action = ActionManager::get_action ("Rulers", "toggle-cd-marker-ruler");
 430         if (action) {
 431                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 432         }
 433         action = ActionManager::get_action ("Rulers", "toggle-marker-ruler");
 434         if (action) {
 435                 ruler_items.push_back (MenuElem (*action->create_menu_item()));
 436         }
 437
 438         editor_ruler_menu->popup (1, gtk_get_current_event_time());
 439
 440         no_ruler_shown_update = false;
 441 }
 442
 443 void
 444 Editor::store_ruler_visibility ()
 445 {
 446         XMLNode* node = new XMLNode(X_("RulerVisibility"));
 447
 448         node->add_property (X_("smpte"), ruler_timecode_action->get_active() ? "yes": "no");
 449         node->add_property (X_("bbt"), ruler_bbt_action->get_active() ? "yes": "no");
 450         node->add_property (X_("frames"), ruler_samples_action->get_active() ? "yes": "no");
 451         node->add_property (X_("minsec"), ruler_minsec_action->get_active() ? "yes": "no");
 452         node->add_property (X_("tempo"), ruler_tempo_action->get_active() ? "yes": "no");
 453         node->add_property (X_("meter"), ruler_meter_action->get_active() ? "yes": "no");
 454         node->add_property (X_("marker"), ruler_marker_action->get_active() ? "yes": "no");
 455         node->add_property (X_("rangemarker"), ruler_range_action->get_active() ? "yes": "no");
 456         node->add_property (X_("transportmarker"), ruler_loop_punch_action->get_active() ? "yes": "no");
 457         node->add_property (X_("cdmarker"), ruler_cd_marker_action->get_active() ? "yes": "no");
 458
 459         session->add_extra_xml (*node);
 460         session->set_dirty ();
 461 }
 462
 463 void
 464 Editor::restore_ruler_visibility ()
 465 {
 466         XMLProperty* prop;
 467         XMLNode * node = session->extra_xml (X_("RulerVisibility"));
 468
 469         no_ruler_shown_update = true;
 470
 471         if (node) {
 472                 if ((prop = node->property ("smpte")) != 0) {
 473                         if (prop->value() == "yes")
 474                                 ruler_timecode_action->set_active (true);
 475                         else
 476                                 ruler_timecode_action->set_active (false);
 477                 }
 478                 if ((prop = node->property ("bbt")) != 0) {
 479                         if (prop->value() == "yes")
 480                                 ruler_bbt_action->set_active (true);
 481                         else
 482                                 ruler_bbt_action->set_active (false);
 483                 }
 484                 if ((prop = node->property ("frames")) != 0) {
 485                         if (prop->value() == "yes")
 486                                 ruler_samples_action->set_active (true);
 487                         else
 488                                 ruler_samples_action->set_active (false);
 489                 }
 490                 if ((prop = node->property ("minsec")) != 0) {
 491                         if (prop->value() == "yes")
 492                                 ruler_minsec_action->set_active (true);
 493                         else
 494                                 ruler_minsec_action->set_active (false);
 495                 }
 496                 if ((prop = node->property ("tempo")) != 0) {
 497                         if (prop->value() == "yes")
 498                                 ruler_tempo_action->set_active (true);
 499                         else
 500                                 ruler_tempo_action->set_active (false);
 501                 }
 502                 if ((prop = node->property ("meter")) != 0) {
 503                         if (prop->value() == "yes")
 504                                 ruler_meter_action->set_active (true);
 505                         else
 506                                 ruler_meter_action->set_active (false);
 507                 }
 508                 if ((prop = node->property ("marker")) != 0) {
 509                         if (prop->value() == "yes")
 510                                 ruler_marker_action->set_active (true);
 511                         else
 512                                 ruler_marker_action->set_active (false);
 513                 }
 514                 if ((prop = node->property ("rangemarker")) != 0) {
 515                         if (prop->value() == "yes")
 516                                 ruler_range_action->set_active (true);
 517                         else
 518                                 ruler_range_action->set_active (false);
 519                 }
 520
 521                 if ((prop = node->property ("transportmarker")) != 0) {
 522                         if (prop->value() == "yes")
 523                                 ruler_loop_punch_action->set_active (true);
 524                         else
 525                                 ruler_loop_punch_action->set_active (false);
 526                 }
 527
 528                 if ((prop = node->property ("cdmarker")) != 0) {
 529                         if (prop->value() == "yes")
 530                                 ruler_cd_marker_action->set_active (true);
 531                         else
 532                                 ruler_cd_marker_action->set_active (false);
 533
 534                 } else {
 535                         // this session doesn't yet know about the cdmarker ruler
 536                         // as a benefit to the user who doesn't know the feature exists, show the ruler if
 537                         // any cd marks exist
 538                         ruler_cd_marker_action->set_active (false);
 539                         const Locations::LocationList & locs = session->locations()->list();
 540                         for (Locations::LocationList::const_iterator i = locs.begin(); i != locs.end(); ++i) {
 541                                 if ((*i)->is_cd_marker()) {
 542                                         ruler_cd_marker_action->set_active (true);
 543                                         break;
 544                                 }
 545                         }
 546                 }
 547
 548         }
 549
 550         no_ruler_shown_update = false;
 551
 552         update_ruler_visibility ();
 553 }
 554
 555 void
 556 Editor::update_ruler_visibility ()
 557 {
 558         using namespace Box_Helpers;
 559         BoxList & lab_children =  time_button_vbox.children();
 560         BoxList & ruler_lab_children =  ruler_label_vbox.children();
 561         BoxList & ruler_children =  time_canvas_vbox.children();
 562         int visible_rulers = 0;
 563
 564         if (no_ruler_shown_update) {
 565                 return;
 566         }
 567
 568         visible_timebars = 0;
 569
 570         lab_children.clear();
 571         ruler_lab_children.clear();
 572
 573         // leave the last one (the time_canvas) intact
 574         while (ruler_children.size() > 0) {
 575                 ruler_children.pop_front();
 576         }
 577
 578         BoxList::iterator canvaspos = ruler_children.begin();
 579
 580         _smpte_ruler = gtk_custom_hruler_new ();
 581         smpte_ruler = Glib::wrap (_smpte_ruler);
 582         smpte_ruler->set_name ("SMPTERuler");
 583         smpte_ruler->set_size_request (-1, (int)timebar_height);
 584         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
 585
 586         _bbt_ruler = gtk_custom_hruler_new ();
 587         bbt_ruler = Glib::wrap (_bbt_ruler);
 588         bbt_ruler->set_name ("BBTRuler");
 589         bbt_ruler->set_size_request (-1, (int)timebar_height);
 590         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 591
 592         _frames_ruler = gtk_custom_hruler_new ();
 593         frames_ruler = Glib::wrap (_frames_ruler);
 594         frames_ruler->set_name ("FramesRuler");
 595         frames_ruler->set_size_request (-1, (int)timebar_height);
 596         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
 597
 598         _minsec_ruler = gtk_custom_hruler_new ();
 599         minsec_ruler = Glib::wrap (_minsec_ruler);
 600         minsec_ruler->set_name ("MinSecRuler");
 601         minsec_ruler->set_size_request (-1, (int)timebar_height);
 602         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
 603
 604         smpte_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 605         bbt_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 606         frames_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 607         minsec_ruler->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::SCROLL_MASK);
 608
 609         smpte_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 610         bbt_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 611         frames_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 612         minsec_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 613
 614         smpte_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 615         bbt_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 616         frames_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 617         minsec_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 618
 619         smpte_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 620         bbt_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 621         frames_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 622         minsec_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 623
 624         smpte_ruler->signal_scroll_event().connect (mem_fun(*this, &Editor::ruler_scroll));
 625         bbt_ruler->signal_scroll_event().connect (mem_fun(*this, &Editor::ruler_scroll));
 626         frames_ruler->signal_scroll_event().connect (mem_fun(*this, &Editor::ruler_scroll));
 627         minsec_ruler->signal_scroll_event().connect (mem_fun(*this, &Editor::ruler_scroll));
 628
 629         ruler_children.insert (canvaspos, Element(*_ruler_separator, PACK_SHRINK, PACK_START));
 630
 631         if (ruler_minsec_action->get_active()) {
 632                 ruler_lab_children.push_back (Element(minsec_label, PACK_SHRINK, PACK_START));
 633                 ruler_children.insert (canvaspos, Element(*minsec_ruler, PACK_SHRINK, PACK_START));
 634                 visible_rulers++;
 635         }
 636
 637         if (ruler_timecode_action->get_active()) {
 638                 ruler_lab_children.push_back (Element(smpte_label, PACK_SHRINK, PACK_START));
 639                 ruler_children.insert (canvaspos, Element(*smpte_ruler, PACK_SHRINK, PACK_START));
 640                 visible_rulers++;
 641         }
 642
 643         if (ruler_samples_action->get_active()) {
 644                 ruler_lab_children.push_back (Element(frame_label, PACK_SHRINK, PACK_START));
 645                 ruler_children.insert (canvaspos, Element(*frames_ruler, PACK_SHRINK, PACK_START));
 646                 visible_rulers++;
 647         }
 648
 649         if (ruler_bbt_action->get_active()) {
 650                 ruler_lab_children.push_back (Element(bbt_label, PACK_SHRINK, PACK_START));
 651                 ruler_children.insert (canvaspos, Element(*bbt_ruler, PACK_SHRINK, PACK_START));
 652                 visible_rulers++;
 653         }
 654
 655         double tbpos = 0.0;
 656         double tbgpos = 0.0;
 657         double old_unit_pos;
 658
 659         if (ruler_meter_action->get_active()) {
 660                 lab_children.push_back (Element(meter_label, PACK_SHRINK, PACK_START));
 661
 662                 old_unit_pos = meter_group->property_y();
 663                 if (tbpos != old_unit_pos) {
 664                         meter_group->move ( 0.0, tbpos - old_unit_pos);
 665                 }
 666                 old_unit_pos = meter_bar_group->property_y();
 667                 if (tbgpos != old_unit_pos) {
 668                         meter_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 669                 }
 670                 meter_bar_group->show();
 671                 meter_group->show();
 672                 tbpos += timebar_height;
 673                 tbgpos += timebar_height;
 674                 visible_timebars++;
 675         } else {
 676                 meter_bar_group->hide();
 677                 meter_group->hide();
 678         }
 679
 680         if (ruler_tempo_action->get_active()) {
 681                 lab_children.push_back (Element(tempo_label, PACK_SHRINK, PACK_START));
 682                 old_unit_pos = tempo_group->property_y();
 683                 if (tbpos != old_unit_pos) {
 684                         tempo_group->move(0.0, tbpos - old_unit_pos);
 685                 }
 686                 old_unit_pos = tempo_bar_group->property_y();
 687                 if (tbgpos != old_unit_pos) {
 688                         tempo_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 689                 }
 690                 tempo_bar_group->show();
 691                 tempo_group->show();
 692                 tbpos += timebar_height;
 693                 tbgpos += timebar_height;
 694                 visible_timebars++;
 695         } else {
 696                 tempo_bar_group->hide();
 697                 tempo_group->hide();
 698         }
 699
 700         if (!Profile->get_sae() && ruler_range_action->get_active()) {
 701                 lab_children.push_back (Element(range_mark_label, PACK_SHRINK, PACK_START));
 702                 old_unit_pos = range_marker_group->property_y();
 703                 if (tbpos != old_unit_pos) {
 704                         range_marker_group->move (0.0, tbpos - old_unit_pos);
 705                 }
 706                 old_unit_pos = range_marker_bar_group->property_y();
 707                 if (tbgpos != old_unit_pos) {
 708                         range_marker_bar_group->move (0.0, tbgpos - old_unit_pos);
 709                 }
 710                 range_marker_bar_group->show();
 711                 range_marker_group->show();
 712                 tbpos += timebar_height;
 713                 tbgpos += timebar_height;
 714                 visible_timebars++;
 715         } else {
 716                 range_marker_bar_group->hide();
 717                 range_marker_group->hide();
 718         }
 719
 720         if (ruler_loop_punch_action->get_active()) {
 721                 lab_children.push_back (Element(transport_mark_label, PACK_SHRINK, PACK_START));
 722                 old_unit_pos = transport_marker_group->property_y();
 723                 if (tbpos != old_unit_pos) {
 724                         transport_marker_group->move ( 0.0, tbpos - old_unit_pos);
 725                 }
 726                 old_unit_pos = transport_marker_bar_group->property_y();
 727                 if (tbgpos != old_unit_pos) {
 728                         transport_marker_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 729                 }
 730                 transport_marker_bar_group->show();
 731                 transport_marker_group->show();
 732                 tbpos += timebar_height;
 733                 tbgpos += timebar_height;
 734                 visible_timebars++;
 735         } else {
 736                 transport_marker_bar_group->hide();
 737                 transport_marker_group->hide();
 738         }
 739
 740         if (ruler_cd_marker_action->get_active()) {
 741                 lab_children.push_back (Element(cd_mark_label, PACK_SHRINK, PACK_START));
 742                 old_unit_pos = cd_marker_group->property_y();
 743                 if (tbpos != old_unit_pos) {
 744                         cd_marker_group->move (0.0, tbpos - old_unit_pos);
 745                 }
 746                 old_unit_pos = cd_marker_bar_group->property_y();
 747                 if (tbgpos != old_unit_pos) {
 748                         cd_marker_bar_group->move (0.0, tbgpos - old_unit_pos);
 749                 }
 750                 cd_marker_bar_group->show();
 751                 cd_marker_group->show();
 752                 tbpos += timebar_height;
 753                 tbgpos += timebar_height;
 754                 visible_timebars++;
 755                 // make sure all cd markers show up in their respective places
 756                 update_cd_marker_display();
 757         } else {
 758                 cd_marker_bar_group->hide();
 759                 cd_marker_group->hide();
 760                 // make sure all cd markers show up in their respective places
 761                 update_cd_marker_display();
 762         }
 763
 764         if (ruler_marker_action->get_active()) {
 765                 lab_children.push_back (Element(mark_label, PACK_SHRINK, PACK_START));
 766                 old_unit_pos = marker_group->property_y();
 767                 if (tbpos != old_unit_pos) {
 768                         marker_group->move ( 0.0, tbpos - old_unit_pos);
 769                 }
 770                 old_unit_pos = marker_bar_group->property_y();
 771                 if (tbgpos != old_unit_pos) {
 772                         marker_bar_group->move ( 0.0, tbgpos - old_unit_pos);
 773                 }
 774                 marker_bar_group->show();
 775                 marker_group->show();
 776                 tbpos += timebar_height;
 777                 tbgpos += timebar_height;
 778                 visible_timebars++;
 779         } else {
 780                 marker_bar_group->hide();
 781                 marker_group->hide();
 782         }
 783
 784         gdouble old_canvas_timebars_vsize = canvas_timebars_vsize;
 785         canvas_timebars_vsize = timebar_height * visible_timebars;
 786         gdouble vertical_pos_delta = canvas_timebars_vsize - old_canvas_timebars_vsize;
 787
 788         if (vertical_pos_delta < 0 && (vertical_adjustment.get_value() + canvas_height) >= vertical_adjustment.get_upper()) {
 789                 /*if we're at the bottom of the canvas, don't move the _trackview_grooup*/
 790                 vertical_adjustment.set_upper(vertical_adjustment.get_upper() + vertical_pos_delta);
 791         } else {
 792                 vertical_adjustment.set_upper(vertical_adjustment.get_upper() + vertical_pos_delta);
 793                 _trackview_group->move (0, vertical_pos_delta);
 794         }
 795         ruler_label_vbox.set_size_request (-1, (int)(timebar_height * visible_rulers));
 796
 797         time_canvas_vbox.set_size_request (-1,-1);
 798         time_canvas_event_box.queue_resize();
 799
 800         update_fixed_rulers();
 801         //redisplay_tempo (false);
 802
 803         time_canvas_event_box.show_all();
 804         ruler_label_event_box.show_all();
 805         time_button_event_box.show_all();
 806 }
 807
 808 void
 809 Editor::update_just_smpte ()
 810 {
 811         ENSURE_GUI_THREAD(mem_fun(*this, &Editor::update_just_smpte));
 812
 813         if (session == 0) {
 814                 return;
 815         }
 816
 817         nframes64_t rightmost_frame = leftmost_frame + current_page_frames();
 818
 819         if (ruler_timecode_action->get_active()) {
 820                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 821                                             leftmost_frame, session->current_end_frame());
 822         }
 823 }
 824
 825 void
 826 Editor::update_fixed_rulers ()
 827 {
 828         nframes64_t rightmost_frame;
 829
 830         if (session == 0) {
 831                 return;
 832         }
 833
 834         ruler_metrics[ruler_metric_smpte].units_per_pixel = frames_per_unit;
 835         ruler_metrics[ruler_metric_frames].units_per_pixel = frames_per_unit;
 836         ruler_metrics[ruler_metric_minsec].units_per_pixel = frames_per_unit;
 837
 838         rightmost_frame = leftmost_frame + current_page_frames ();
 839
 840         /* these force a redraw, which in turn will force execution of the metric callbacks
 841            to compute the relevant ticks to display.
 842         */
 843
 844         if (ruler_timecode_action->get_active()) {
 845                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 846                                             leftmost_frame, session->current_end_frame());
 847         }
 848
 849         if (ruler_samples_action->get_active()) {
 850                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_frames_ruler), leftmost_frame, rightmost_frame,
 851                                             leftmost_frame, session->current_end_frame());
 852         }
 853
 854         if (ruler_minsec_action->get_active()) {
 855                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_minsec_ruler), leftmost_frame, rightmost_frame,
 856                                             leftmost_frame, session->current_end_frame());
 857         }
 858 }
 859
 860 void
 861 Editor::update_tempo_based_rulers ()
 862 {
 863         if (session == 0) {
 864                 return;
 865         }
 866
 867         ruler_metrics[ruler_metric_bbt].units_per_pixel = frames_per_unit;
 868
 869         if (ruler_bbt_action->get_active()) {
 870                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_bbt_ruler), leftmost_frame, leftmost_frame+current_page_frames(),
 871                                             leftmost_frame, session->current_end_frame());
 872         }
 873 }
 874
 875 /* Mark generation */
 876
 877 gint
 878 Editor::_metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 879 {
 880         return ruler_editor->metric_get_smpte (marks, lower, upper, maxchars);
 881 }
 882
 883 gint
 884 Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 885 {
 886         return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 887 }
 888
 889 gint
 890 Editor::_metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 891 {
 892         return ruler_editor->metric_get_frames (marks, lower, upper, maxchars);
 893 }
 894
 895 gint
 896 Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 897 {
 898         return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 899 }
 900
 901 gint
 902 Editor::metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 903 {
 904         nframes_t pos;
 905         nframes64_t range;
 906         nframes64_t spacer;
 907         nframes64_t fr;
 908         SMPTE::Time smpte;
 909         gchar buf[16];
 910         gint nmarks = 0;
 911         gint n;
 912         bool show_bits = false;
 913         bool show_frames = false;
 914         bool show_seconds = false;
 915         bool show_minutes = false;
 916         bool show_hours = false;
 917         int mark_modulo;
 918
 919         if (session == 0) {
 920                 return 0;
 921         }
 922
 923         fr = session->frame_rate();
 924
 925         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
 926                 lower = lower - spacer;
 927         } else {
 928                 lower = 0;
 929         }
 930         upper = upper + spacer;
 931         range = (nframes64_t) floor (upper - lower);
 932
 933         if (range < (2 * session->frames_per_smpte_frame())) { /* 0 - 2 frames */
 934                 show_bits = true;
 935                 mark_modulo = 20;
 936                 nmarks = 1 + (2 * Config->get_subframes_per_frame());
 937         } else if (range <= (fr / 4)) { /* 2 frames - 0.250 second */
 938                 show_frames = true;
 939                 mark_modulo = 1;
 940                 nmarks = 1 + (range / (nframes64_t)session->frames_per_smpte_frame());
 941         } else if (range <= (fr / 2)) { /* 0.25-0.5 second */
 942                 show_frames = true;
 943                 mark_modulo = 2;
 944                 nmarks = 1 + (range / (nframes64_t)session->frames_per_smpte_frame());
 945         } else if (range <= fr) { /* 0.5-1 second */
 946                 show_frames = true;
 947                 mark_modulo = 5;
 948                 nmarks = 1 + (range / (nframes64_t)session->frames_per_smpte_frame());
 949         } else if (range <= 2 * fr) { /* 1-2 seconds */
 950                 show_frames = true;
 951                 mark_modulo = 10;
 952                 nmarks = 1 + (range / (nframes64_t)session->frames_per_smpte_frame());
 953         } else if (range <= 8 * fr) { /* 2-8 seconds */
 954                 show_seconds = true;
 955                 mark_modulo = 1;
 956                 nmarks = 1 + (range / fr);
 957         } else if (range <= 16 * fr) { /* 8-16 seconds */
 958                 show_seconds = true;
 959                 mark_modulo = 2;
 960                 nmarks = 1 + (range / fr);
 961         } else if (range <= 30 * fr) { /* 16-30 seconds */
 962                 show_seconds = true;
 963                 mark_modulo = 5;
 964                 nmarks = 1 + (range / fr);
 965         } else if (range <= 60 * fr) { /* 30-60 seconds */
 966                 show_seconds = true;
 967                 mark_modulo = 5;
 968                 nmarks = 1 + (range / fr);
 969         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
 970                 show_seconds = true;
 971                 mark_modulo = 20;
 972                 nmarks = 1 + (range / fr);
 973         } else if (range <= 4 * 60 * fr) { /* 2-4 minutes */
 974                 show_seconds = true;
 975                 mark_modulo = 30;
 976                 nmarks = 1 + (range / fr);
 977         } else if (range <= 10 * 60 * fr) { /* 4-10 minutes */
 978                 show_minutes = true;
 979                 mark_modulo = 2;
 980                 nmarks = 1 + 10;
 981         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
 982                 show_minutes = true;
 983                 mark_modulo = 5;
 984                 nmarks = 1 + 30;
 985         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
 986                 show_minutes = true;
 987                 mark_modulo = 10;
 988                 nmarks = 1 + 60;
 989         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
 990                 show_minutes = true;
 991                 mark_modulo = 30;
 992                 nmarks = 1 + (60 * 4);
 993         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
 994                 show_hours = true;
 995                 mark_modulo = 1;
 996                 nmarks = 1 + 8;
 997         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
 998                 show_hours = true;
 999                 mark_modulo = 1;
1000                 nmarks = 1 + 24;
1001         } else {
1002
1003                 /* not possible if nframes64_t is a 32 bit quantity */
1004
1005                 show_hours = true;
1006                 mark_modulo = 4;
1007                 nmarks = 1 + 24;
1008         }
1009
1010         pos = (nframes_t) floor (lower);
1011
1012         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1013
1014         if (show_bits) {
1015                 // Find smpte time of this sample (pos) with subframe accuracy
1016                 session->sample_to_smpte(pos, smpte, true /* use_offset */, true /* use_subframes */ );
1017
1018                 for (n = 0; n < nmarks; n++) {
1019                         session->smpte_to_sample(smpte, pos, true /* use_offset */, true /* use_subframes */ );
1020                         if ((smpte.subframes % mark_modulo) == 0) {
1021                                 if (smpte.subframes == 0) {
1022                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1023                                         snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1024                                 } else {
1025                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1026                                         snprintf (buf, sizeof(buf), ".%02u", smpte.subframes);
1027                                 }
1028                         } else {
1029                                 snprintf (buf, sizeof(buf)," ");
1030                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1031
1032                         }
1033                         (*marks)[n].label = g_strdup (buf);
1034                         (*marks)[n].position = pos;
1035
1036                         // Increment subframes by one
1037                         SMPTE::increment_subframes( smpte );
1038                 }
1039         } else if (show_seconds) {
1040                 // Find smpte time of this sample (pos)
1041                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1042                 // Go to next whole second down
1043                 SMPTE::seconds_floor( smpte );
1044
1045                 for (n = 0; n < nmarks; n++) {
1046                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1047                         if ((smpte.seconds % mark_modulo) == 0) {
1048                                 if (smpte.seconds == 0) {
1049                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1050                                         (*marks)[n].position = pos;
1051                                 } else {
1052                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1053                                         (*marks)[n].position = pos;
1054                                 }
1055                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1056                         } else {
1057                                 snprintf (buf, sizeof(buf)," ");
1058                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1059                                 (*marks)[n].position = pos;
1060
1061                         }
1062                         (*marks)[n].label = g_strdup (buf);
1063                         SMPTE::increment_seconds( smpte );
1064                 }
1065         } else if (show_minutes) {
1066                 // Find smpte time of this sample (pos)
1067                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1068                 // Go to next whole minute down
1069                 SMPTE::minutes_floor( smpte );
1070
1071                 for (n = 0; n < nmarks; n++) {
1072                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1073                         if ((smpte.minutes % mark_modulo) == 0) {
1074                                 if (smpte.minutes == 0) {
1075                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1076                                 } else {
1077                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1078                                 }
1079                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1080                         } else {
1081                                 snprintf (buf, sizeof(buf)," ");
1082                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1083
1084                         }
1085                         (*marks)[n].label = g_strdup (buf);
1086                         (*marks)[n].position = pos;
1087                         SMPTE::increment_minutes( smpte );
1088                 }
1089         } else if (show_hours) {
1090                 // Find smpte time of this sample (pos)
1091                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1092                 // Go to next whole hour down
1093                 SMPTE::hours_floor( smpte );
1094
1095                 for (n = 0; n < nmarks; n++) {
1096                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1097                         if ((smpte.hours % mark_modulo) == 0) {
1098                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1099                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1100                         } else {
1101                                 snprintf (buf, sizeof(buf)," ");
1102                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1103
1104                         }
1105                         (*marks)[n].label = g_strdup (buf);
1106                         (*marks)[n].position = pos;
1107
1108                         SMPTE::increment_hours( smpte );
1109                 }
1110         } else { // show_frames
1111                 // Find smpte time of this sample (pos)
1112                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1113                 // Go to next whole frame down
1114                 SMPTE::frames_floor( smpte );
1115
1116                 for (n = 0; n < nmarks; n++) {
1117                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1118                         if ((smpte.frames % mark_modulo) == 0)  {
1119                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1120                                 (*marks)[n].position = pos;
1121                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1122                         } else {
1123                                 snprintf (buf, sizeof(buf)," ");
1124                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1125                                 (*marks)[n].position = pos;
1126
1127                         }
1128                         (*marks)[n].label = g_strdup (buf);
1129                         SMPTE::increment( smpte );
1130                 }
1131         }
1132
1133         return nmarks;
1134 }
1135
1136
1137 gint
1138 Editor::metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1139 {
1140         if (session == 0) {
1141                 return 0;
1142         }
1143
1144         TempoMap::BBTPointList::iterator i;
1145
1146         uint32_t beats = 0;
1147         uint32_t bars = 0;
1148         uint32_t desirable_marks;
1149         uint32_t magic_accent_number = 1;
1150         gint nmarks;
1151         char buf[64];
1152         gint  n = 0;
1153         nframes64_t pos;
1154         bool bar_helper_on = true;
1155
1156         BBT_Time next_beat;
1157         nframes64_t next_beat_pos;
1158
1159         if ((desirable_marks = maxchars / 7) == 0) {
1160                return 0;
1161         }
1162
1163         /* align the tick marks to whatever we're snapping to... */
1164
1165         switch (snap_type) {
1166         case SnapToAThirdBeat:
1167                 bbt_beat_subdivision = 3;
1168                 break;
1169         case SnapToAQuarterBeat:
1170                 bbt_beat_subdivision = 4;
1171                 break;
1172         case SnapToAEighthBeat:
1173                 bbt_beat_subdivision = 8;
1174                 magic_accent_number = 2;
1175                 break;
1176         case SnapToASixteenthBeat:
1177                 bbt_beat_subdivision = 16;
1178                 magic_accent_number = 4;
1179                 break;
1180         case SnapToAThirtysecondBeat:
1181                 bbt_beat_subdivision = 32;
1182                 magic_accent_number = 8;
1183                 break;
1184         default:
1185                bbt_beat_subdivision = 4;
1186                 break;
1187         }
1188
1189         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1190                 return 0;
1191         }
1192
1193         i = current_bbt_points->end();
1194         i--;
1195         bars = (*i).bar - (*current_bbt_points->begin()).bar;
1196         beats = current_bbt_points->size() - bars;
1197
1198         /*Only show the bar helper if there aren't many bars on the screen */
1199         if (bars > 1) {
1200                 bar_helper_on = false;
1201         }
1202
1203         if (desirable_marks > (beats / 4)) {
1204
1205                 /* we're in beat land...*/
1206
1207                 uint32_t tick = 0;
1208                 uint32_t skip;
1209                 uint32_t t;
1210                 nframes64_t frame_skip;
1211                 double frame_skip_error;
1212                 double accumulated_error;
1213                 double position_of_helper;
1214                 bool i_am_accented = false;
1215                 bool we_need_ticks = false;
1216                 bool helper_active = false;
1217
1218                 position_of_helper = lower + (30 * Editor::get_current_zoom ());
1219
1220                 if (desirable_marks >= (beats)) {
1221                         nmarks = (beats * bbt_beat_subdivision) + 1;
1222                         we_need_ticks = true;
1223                 } else {
1224                         nmarks = beats + 1;
1225                 }
1226
1227                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1228
1229                 (*marks)[0].label = g_strdup(" ");
1230                 (*marks)[0].position = lower;
1231                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1232
1233                 for (n = 1,   i = current_bbt_points->begin(); n < nmarks && i != current_bbt_points->end(); ++i) {
1234
1235                         if ((*i).frame < lower && (bar_helper_on)) {
1236                                         snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1237                                         (*marks)[0].label = g_strdup (buf);
1238                                         helper_active = true;
1239                         } else {
1240
1241                           if ((*i).type == TempoMap::Bar)  {
1242                             if (((*i).frame < position_of_helper) && helper_active) {
1243                               snprintf (buf, sizeof(buf), " ");
1244                             } else {
1245                               snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1246                             }
1247                             (*marks)[n].label = g_strdup (buf);
1248                             (*marks)[n].position = (*i).frame;
1249                             (*marks)[n].style = GtkCustomRulerMarkMajor;
1250                             n++;
1251
1252                           } else if (((*i).type == TempoMap::Beat) && ((*i).beat > 1)) {
1253                             ((((*i).frame < position_of_helper) && bar_helper_on) || !we_need_ticks) ?
1254                               snprintf (buf, sizeof(buf), " ") : snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1255                             if (((*i).beat % 2 == 1) || we_need_ticks) {
1256                               (*marks)[n].style = GtkCustomRulerMarkMinor;
1257                             } else {
1258                               (*marks)[n].style = GtkCustomRulerMarkMicro;
1259                             }
1260                             (*marks)[n].label =  g_strdup (buf);
1261                             (*marks)[n].position = (*i).frame;
1262                             n++;
1263                           }
1264
1265                         }
1266
1267
1268                         /* Add the tick marks */
1269
1270                         if (we_need_ticks && (*i).type == TempoMap::Beat) {
1271
1272                                 /* Find the next beat */
1273
1274                                 next_beat.beats = (*i).beat;
1275                                 next_beat.bars = (*i).bar;
1276
1277                                 if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1278                                   next_beat.beats += 1;
1279                                 } else {
1280                                   next_beat.bars += 1;
1281                                   next_beat.beats = 1;
1282                                 }
1283
1284                                 next_beat_pos = session->tempo_map().frame_time(next_beat);
1285
1286                                 frame_skip = (nframes64_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1287                                 frame_skip_error -= frame_skip;
1288                                 skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1289
1290                                 pos = (*i).frame + frame_skip;
1291                                 accumulated_error = frame_skip_error;
1292
1293                                 tick = skip;
1294
1295                                 for (t = 0; (tick < Meter::ticks_per_beat) && (n < nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1296
1297                                         if (t % magic_accent_number == (magic_accent_number - 1)) {
1298                                                 i_am_accented = true;
1299                                         }
1300                                         if (Editor::get_current_zoom () > 32) {
1301                                                 snprintf (buf, sizeof(buf), " ");
1302                                         } else if ((Editor::get_current_zoom () > 8) && !i_am_accented) {
1303                                                 snprintf (buf, sizeof(buf), " ");
1304                                         } else  if (bar_helper_on && (pos < position_of_helper)) {
1305                                                 snprintf (buf, sizeof(buf), " ");
1306                                         } else {
1307                                                 snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1308                                         }
1309
1310                                         (*marks)[n].label = g_strdup (buf);
1311
1312                                         /* Error compensation for float to nframes64_t*/
1313                                         accumulated_error += frame_skip_error;
1314                                         if (accumulated_error > 1) {
1315                                                 pos += 1;
1316                                                 accumulated_error -= 1.0f;
1317                                         }
1318
1319                                         (*marks)[n].position = pos;
1320
1321                                         if ((bbt_beat_subdivision > 4) && i_am_accented) {
1322                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1323                                         } else {
1324                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1325                                         }
1326                                         i_am_accented = false;
1327                                         n++;
1328
1329                                 }
1330                         }
1331                 }
1332                 return n; //return the actual number of marks made, since we might have skipped some fro fractional time signatures
1333
1334        } else {
1335
1336                 /* we're in bar land */
1337
1338                 if (desirable_marks < (bars / 256)) {
1339                         nmarks = 1;
1340                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1341                         snprintf (buf, sizeof(buf), "too many bars... (currently %" PRIu32 ")", bars );
1342                         (*marks)[0].style = GtkCustomRulerMarkMajor;
1343                         (*marks)[0].label = g_strdup (buf);
1344                         (*marks)[0].position = lower;
1345                 } else if (desirable_marks < (uint32_t)(nmarks = (gint) (bars / 64) + 1)) {
1346                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1347                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1348                                 if ((*i).type == TempoMap::Bar)  {
1349                                         if ((*i).bar % 64 == 1) {
1350                                                 if ((*i).bar % 256 == 1) {
1351                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1352                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1353                                                 } else {
1354                                                         snprintf (buf, sizeof(buf), " ");
1355                                                         if ((*i).bar % 256 == 129)  {
1356                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1357                                                         } else {
1358                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1359                                                         }
1360                                                 }
1361                                                 (*marks)[n].label = g_strdup (buf);
1362                                                 (*marks)[n].position = (*i).frame;
1363                                                 n++;
1364                                         }
1365                                 }
1366                         }
1367                 } else if (desirable_marks < (uint32_t)(nmarks = (bars / 16) + 1)) {
1368                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1369                         for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1370                                 if ((*i).type == TempoMap::Bar)  {
1371                                         if ((*i).bar % 16 == 1) {
1372                                                 if ((*i).bar % 64 == 1) {
1373                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1374                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1375                                                 } else {
1376                                                         snprintf (buf, sizeof(buf), " ");
1377                                                         if ((*i).bar % 64 == 33)  {
1378                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1379                                                         } else {
1380                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1381                                                         }
1382                                                 }
1383                                                 (*marks)[n].label = g_strdup (buf);
1384                                                 (*marks)[n].position = (*i).frame;
1385                                                 n++;
1386                                         }
1387                                 }
1388                         }
1389                 } else if (desirable_marks < (uint32_t)(nmarks = (bars / 4) + 1)){
1390                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1391                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; ++i) {
1392                                 if ((*i).type == TempoMap::Bar)  {
1393                                         if ((*i).bar % 4 == 1) {
1394                                                 if ((*i).bar % 16 == 1) {
1395                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1396                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1397                                                 } else {
1398                                                         snprintf (buf, sizeof(buf), " ");
1399                                                         if ((*i).bar % 16 == 9)  {
1400                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1401                                                         } else {
1402                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1403                                                         }
1404                                                 }
1405                                                 (*marks)[n].label = g_strdup (buf);
1406                                                 (*marks)[n].position = (*i).frame;
1407                                                 n++;
1408                                         }
1409                                 }
1410                         }
1411                 } else {
1412                         nmarks = bars + 1;
1413                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks );
1414                         for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1415                                 if ((*i).type == TempoMap::Bar)  {
1416                                         if ((*i).bar % 4 == 1) {
1417                                                 snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1418                                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1419                                         } else {
1420                                                 snprintf (buf, sizeof(buf), " ");
1421                                                 if ((*i).bar % 4 == 3)  {
1422                                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1423                                                 } else {
1424                                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1425                                                 }
1426                                         }
1427                                         (*marks)[n].label = g_strdup (buf);
1428                                         (*marks)[n].position = (*i).frame;
1429                                         n++;
1430                                 }
1431                         }
1432                 }
1433                 return n;
1434         }
1435 }
1436
1437 gint
1438 Editor::metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1439 {
1440         nframes64_t mark_interval;
1441         nframes64_t pos;
1442         nframes64_t ilower = (nframes64_t) floor (lower);
1443         nframes64_t iupper = (nframes64_t) floor (upper);
1444         gchar buf[16];
1445         gint nmarks;
1446         gint n;
1447
1448         if (session == 0) {
1449                 return 0;
1450         }
1451
1452         mark_interval = (iupper - ilower) / 5;
1453         if (mark_interval > session->frame_rate()) {
1454                 mark_interval -= mark_interval % session->frame_rate();
1455         } else {
1456                 mark_interval = session->frame_rate() / (session->frame_rate() / mark_interval ) ;
1457         }
1458         nmarks = 5;
1459         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1460         for (n = 0, pos = ilower; n < nmarks; pos += mark_interval, ++n) {
1461                 snprintf (buf, sizeof(buf), "%" PRIi64,  pos);
1462                 (*marks)[n].label = g_strdup (buf);
1463                 (*marks)[n].position = pos;
1464                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1465         }
1466
1467         return nmarks;
1468 }
1469
1470 static void
1471 sample_to_clock_parts ( nframes64_t sample,
1472                         nframes64_t sample_rate,
1473                         long *hrs_p,
1474                         long *mins_p,
1475                         long *secs_p,
1476                         long *millisecs_p)
1477
1478 {
1479         nframes64_t left;
1480         long hrs;
1481         long mins;
1482         long secs;
1483         long millisecs;
1484
1485         left = sample;
1486         hrs = left / (sample_rate * 60 * 60);
1487         left -= hrs * sample_rate * 60 * 60;
1488         mins = left / (sample_rate * 60);
1489         left -= mins * sample_rate * 60;
1490         secs = left / sample_rate;
1491         left -= secs * sample_rate;
1492         millisecs = left * 1000 / sample_rate;
1493
1494         *millisecs_p = millisecs;
1495         *secs_p = secs;
1496         *mins_p = mins;
1497         *hrs_p = hrs;
1498
1499         return;
1500 }
1501
1502 gint
1503 Editor::metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1504 {
1505         nframes64_t range;
1506         nframes64_t fr;
1507         nframes64_t mark_interval;
1508         nframes64_t pos;
1509         nframes64_t spacer;
1510         long hrs, mins, secs, millisecs;
1511         gchar buf[16];
1512         gint nmarks;
1513         gint n;
1514         gint mark_modulo = 100;
1515         bool show_seconds = false;
1516         bool show_minutes = false;
1517         bool show_hours = false;
1518         nframes64_t ilower = (nframes64_t) floor (lower);
1519         nframes64_t iupper = (nframes64_t) floor (upper);
1520
1521         if (session == 0) {
1522                 return 0;
1523         }
1524
1525         fr = session->frame_rate();
1526
1527         /* to prevent 'flashing' */
1528         if (lower > (spacer = (nframes64_t)(128 * Editor::get_current_zoom ()))) {
1529                 lower = lower - spacer;
1530         } else {
1531                 lower = 0;
1532         }
1533         upper = upper + spacer;
1534         range = iupper - ilower;
1535
1536         if (range <  (fr / 50)) {
1537                 mark_interval =  fr / 100; /* show 1/100 seconds */
1538                 mark_modulo = 10;
1539         } else if (range <= (fr / 10)) { /* 0-0.1 second */
1540                 mark_interval = fr / 50; /* show 1/50 seconds */
1541                 mark_modulo = 20;
1542         } else if (range <= (fr / 2)) { /* 0-0.5 second */
1543                 mark_interval = fr / 20;  /* show 1/20 seconds */
1544                 mark_modulo = 100;
1545         } else if (range <= fr) { /* 0-1 second */
1546                 mark_interval = fr / 10;  /* show 1/10 seconds */
1547                 mark_modulo = 200;
1548         } else if (range <= 2 * fr) { /* 1-2 seconds */
1549                 mark_interval = fr / 2; /* show 1/2 seconds */
1550                 mark_modulo = 500;
1551         } else if (range <= 8 * fr) { /* 2-5 seconds */
1552                 mark_interval =  fr / 5; /* show 2 seconds */
1553                 mark_modulo = 1000;
1554         } else if (range <= 16 * fr) { /* 8-16 seconds */
1555                 mark_interval =  fr; /* show 1 seconds */
1556                 show_seconds = true;
1557                 mark_modulo = 5;
1558         } else if (range <= 30 * fr) { /* 10-30 seconds */
1559                 mark_interval =  fr; /* show 10 seconds */
1560                 show_seconds = true;
1561                 mark_modulo = 5;
1562         } else if (range <= 60 * fr) { /* 30-60 seconds */
1563                 mark_interval = 5 * fr; /* show 5 seconds */
1564                 show_seconds = true;
1565                 mark_modulo = 3;
1566         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1567                 mark_interval = 5 * fr; /* show 5 seconds */
1568                 show_seconds = true;
1569                 mark_modulo = 3;
1570         } else if (range <= 4 * 60 * fr) { /* 4 minutes */
1571                 mark_interval = 10 * fr; /* show 10 seconds */
1572                 show_seconds = true;
1573                 mark_modulo = 30;
1574         } else if (range <= 10 * 60 * fr) { /* 10 minutes */
1575                 mark_interval = 30 * fr; /* show 30 seconds */
1576                 show_seconds = true;
1577                 mark_modulo = 60;
1578         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1579                 mark_interval =  60 * fr; /* show 1 minute */
1580                 show_minutes = true;
1581                 mark_modulo = 5;
1582         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1583                 mark_interval = 2 * 60 * fr; /* show 2 minutes */
1584                 show_minutes = true;
1585                 mark_modulo = 10;
1586         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1587                 mark_interval = 5 * 60 * fr; /* show 10 minutes */
1588                 show_minutes = true;
1589                 mark_modulo = 30;
1590         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1591                 mark_interval = 20 * 60 * fr; /* show 20 minutes */
1592                 show_minutes = true;
1593                 mark_modulo = 60;
1594         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1595                 mark_interval =  60 * 60 * fr; /* show 60 minutes */
1596                 show_hours = true;
1597                 mark_modulo = 2;
1598         } else {
1599
1600                 /* not possible if nframes64_t is a 32 bit quantity */
1601
1602                 mark_interval = 4 * 60 * 60 * fr; /* show 4 hrs */
1603         }
1604
1605         nmarks = 1 + (range / mark_interval);
1606         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1607         pos = ((ilower + (mark_interval/2))/mark_interval) * mark_interval;
1608
1609         if (show_seconds) {
1610                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1611                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1612                         if (secs % mark_modulo == 0) {
1613                                 if (secs == 0) {
1614                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1615                                 } else {
1616                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1617                                 }
1618                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1619                         } else {
1620                                 snprintf (buf, sizeof(buf), " ");
1621                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1622                         }
1623                         (*marks)[n].label = g_strdup (buf);
1624                         (*marks)[n].position = pos;
1625                 }
1626         } else if (show_minutes) {
1627                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1628                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1629                         if (mins % mark_modulo == 0) {
1630                                 if (mins == 0) {
1631                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1632                                 } else {
1633                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1634                                 }
1635                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1636                         } else {
1637                                 snprintf (buf, sizeof(buf), " ");
1638                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1639                         }
1640                         (*marks)[n].label = g_strdup (buf);
1641                         (*marks)[n].position = pos;
1642                 }
1643         } else if (show_hours) {
1644                  for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1645                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1646                         if (hrs % mark_modulo == 0) {
1647                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1648                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1649                         } else {
1650                                 snprintf (buf, sizeof(buf), " ");
1651                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1652                         }
1653                         (*marks)[n].label = g_strdup (buf);
1654                         (*marks)[n].position = pos;
1655                 }
1656         } else {
1657                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1658                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1659                         if (millisecs % mark_modulo == 0) {
1660                                 if (millisecs == 0) {
1661                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1662                                 } else {
1663                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1664                                 }
1665                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1666                         } else {
1667                                 snprintf (buf, sizeof(buf), " ");
1668                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1669                         }
1670                         (*marks)[n].label = g_strdup (buf);
1671                         (*marks)[n].position = pos;
1672                 }
1673         }
1674
1675         return nmarks;
1676 }