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 <ardour/tempo.h>
  26 #include <gtkmm2ext/gtk_ui.h>
  27
  28 #include "editor.h"
  29 #include "editing.h"
  30 #include "gtk-custom-hruler.h"
  31 #include "gui_thread.h"
  32
  33 #include "i18n.h"
  34
  35 using namespace sigc;
  36 using namespace ARDOUR;
  37 using namespace PBD;
  38 using namespace Gtk;
  39 using namespace Editing;
  40
  41 Editor *Editor::ruler_editor;
  42
  43 /* the order here must match the "metric" enums in editor.h */
  44
  45 GtkCustomMetric Editor::ruler_metrics[4] = {
  46         {1, Editor::_metric_get_smpte },
  47         {1, Editor::_metric_get_bbt },
  48         {1, Editor::_metric_get_frames },
  49         {1, Editor::_metric_get_minsec }
  50 };
  51
  52 void
  53 Editor::initialize_rulers ()
  54 {
  55         ruler_editor = this;
  56         ruler_grabbed_widget = 0;
  57
  58         _ruler_separator = new Gtk::HSeparator();
  59         _ruler_separator->set_size_request(-1, 2);
  60         _ruler_separator->show();
  61
  62         _smpte_ruler = gtk_custom_hruler_new ();
  63         smpte_ruler = Glib::wrap (_smpte_ruler);
  64         smpte_ruler->set_name ("SMPTERuler");
  65         smpte_ruler->set_size_request (-1, (int)timebar_height);
  66         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
  67         ruler_shown[ruler_metric_smpte] = true;
  68
  69         _bbt_ruler = gtk_custom_hruler_new ();
  70         bbt_ruler = Glib::wrap (_bbt_ruler);
  71         bbt_ruler->set_name ("BBTRuler");
  72         bbt_ruler->set_size_request (-1, (int)timebar_height);
  73         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
  74         ruler_shown[ruler_metric_bbt] = true;
  75
  76         _frames_ruler = gtk_custom_hruler_new ();
  77         frames_ruler = Glib::wrap (_frames_ruler);
  78         frames_ruler->set_name ("FramesRuler");
  79         frames_ruler->set_size_request (-1, (int)timebar_height);
  80         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
  81
  82         _minsec_ruler = gtk_custom_hruler_new ();
  83         minsec_ruler = Glib::wrap (_minsec_ruler);
  84         minsec_ruler->set_name ("MinSecRuler");
  85         minsec_ruler->set_size_request (-1, (int)timebar_height);
  86         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
  87
  88         ruler_shown[ruler_time_meter] = true;
  89         ruler_shown[ruler_time_tempo] = true;
  90         ruler_shown[ruler_time_marker] = true;
  91         ruler_shown[ruler_time_range_marker] = true;
  92         ruler_shown[ruler_time_transport_marker] = true;
  93         ruler_shown[ruler_metric_frames] = false;
  94         ruler_shown[ruler_metric_minsec] = false;
  95
  96         smpte_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
  97         bbt_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
  98         frames_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
  99         minsec_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 100
 101         smpte_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 102         bbt_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 103         frames_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 104         minsec_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 105
 106         smpte_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 107         bbt_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 108         frames_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 109         minsec_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 110
 111         smpte_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 112         bbt_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 113         frames_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 114         minsec_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 115
 116         visible_timebars = 7; /* 4 here, 3 in time_canvas */
 117         ruler_pressed_button = 0;
 118 }
 119
 120
 121 gint
 122 Editor::ruler_button_press (GdkEventButton* ev)
 123 {
 124         if (session == 0) {
 125                 return FALSE;
 126         }
 127
 128         ruler_pressed_button = ev->button;
 129
 130         // jlc: grab ev->window ?
 131         //Gtk::Main::grab_add (*minsec_ruler);
 132         Widget * grab_widget = 0;
 133
 134         if (smpte_ruler->is_realized() && ev->window == smpte_ruler->get_window()->gobj()) grab_widget = smpte_ruler;
 135         else if (bbt_ruler->is_realized() && ev->window == bbt_ruler->get_window()->gobj()) grab_widget = bbt_ruler;
 136         else if (frames_ruler->is_realized() && ev->window == frames_ruler->get_window()->gobj()) grab_widget = frames_ruler;
 137         else if (minsec_ruler->is_realized() && ev->window == minsec_ruler->get_window()->gobj()) grab_widget = minsec_ruler;
 138
 139         if (grab_widget) {
 140                 grab_widget->add_modal_grab ();
 141                 ruler_grabbed_widget = grab_widget;
 142         }
 143
 144         gint x,y;
 145         Gdk::ModifierType state;
 146
 147         /* need to use the correct x,y, the event lies */
 148         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 149
 150         nframes_t where = leftmost_frame + pixel_to_frame (x);
 151
 152         switch (ev->button) {
 153         case 1:
 154                 // Since we are about to move the playhead, cancel any running
 155                 // auditions.
 156                 if (session->is_auditioning()) {
 157                         session->cancel_audition ();
 158                 }
 159                 /* transport playhead */
 160                 snap_to (where);
 161                 session->request_locate (where);
 162                 _dragging_playhead = true;
 163                 break;
 164
 165         case 2:
 166                 /* edit cursor */
 167                 if (snap_type != Editing::SnapToEditCursor) {
 168                         snap_to (where);
 169                 }
 170                 edit_cursor->set_position (where);
 171                 edit_cursor_clock.set (where);
 172                 break;
 173
 174         default:
 175                 break;
 176         }
 177
 178         return TRUE;
 179 }
 180
 181 gint
 182 Editor::ruler_button_release (GdkEventButton* ev)
 183 {
 184         gint x,y;
 185         Gdk::ModifierType state;
 186
 187         /* need to use the correct x,y, the event lies */
 188         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 189
 190         ruler_pressed_button = 0;
 191
 192         if (session == 0) {
 193                 return FALSE;
 194         }
 195
 196         stop_canvas_autoscroll();
 197
 198         nframes_t where = leftmost_frame + pixel_to_frame (x);
 199
 200         switch (ev->button) {
 201         case 1:
 202                 /* transport playhead */
 203                 _dragging_playhead = false;
 204                 snap_to (where);
 205                 session->request_locate (where);
 206                 break;
 207
 208         case 2:
 209                 /* edit cursor */
 210                 if (snap_type != Editing::SnapToEditCursor) {
 211                         snap_to (where);
 212                 }
 213                 edit_cursor->set_position (where);
 214                 edit_cursor_clock.set (where);
 215                 break;
 216
 217         case 3:
 218                 /* popup menu */
 219                 snap_to (where);
 220                 popup_ruler_menu (where);
 221
 222                 break;
 223         default:
 224                 break;
 225         }
 226
 227
 228         if (ruler_grabbed_widget) {
 229                 ruler_grabbed_widget->remove_modal_grab();
 230                 ruler_grabbed_widget = 0;
 231         }
 232
 233         return TRUE;
 234 }
 235
 236 gint
 237 Editor::ruler_label_button_release (GdkEventButton* ev)
 238 {
 239         if (ev->button == 3)
 240         {
 241                 popup_ruler_menu();
 242         }
 243
 244         return TRUE;
 245 }
 246
 247
 248 gint
 249 Editor::ruler_mouse_motion (GdkEventMotion* ev)
 250 {
 251         if (session == 0 || !ruler_pressed_button) {
 252                 return FALSE;
 253         }
 254
 255         double wcx=0,wcy=0;
 256         double cx=0,cy=0;
 257
 258         gint x,y;
 259         Gdk::ModifierType state;
 260
 261         /* need to use the correct x,y, the event lies */
 262         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 263
 264
 265         track_canvas.c2w (x, y, wcx, wcy);
 266         track_canvas.w2c (wcx, wcy, cx, cy);
 267
 268         nframes_t where = leftmost_frame + pixel_to_frame (x);
 269
 270         /// ripped from maybe_autoscroll, and adapted to work here
 271         nframes_t one_page = (nframes_t) rint (canvas_width * frames_per_unit);
 272         nframes_t rightmost_frame = leftmost_frame + one_page;
 273
 274         jack_nframes_t frame = pixel_to_frame (cx);
 275
 276         if (autoscroll_timeout_tag < 0) {
 277                 if (frame > rightmost_frame) {
 278                         if (rightmost_frame < max_frames) {
 279                                 start_canvas_autoscroll (1);
 280                         }
 281                 } else if (frame < leftmost_frame) {
 282                         if (leftmost_frame > 0) {
 283                                 start_canvas_autoscroll (-1);
 284                         }
 285                 }
 286         } else {
 287                 if (frame >= leftmost_frame && frame < rightmost_frame) {
 288                         stop_canvas_autoscroll ();
 289                 }
 290         }
 291         //////
 292
 293         snap_to (where);
 294
 295         Cursor* cursor = 0;
 296
 297         switch (ruler_pressed_button) {
 298         case 1:
 299                 /* transport playhead */
 300                 cursor = playhead_cursor;
 301                 break;
 302
 303         case 2:
 304                 /* edit cursor */
 305                 cursor = edit_cursor;
 306                 break;
 307
 308         default:
 309                 break;
 310         }
 311
 312         if (cursor) {
 313                 cursor->set_position (where);
 314
 315                 if (cursor == edit_cursor) {
 316                         edit_cursor_clock.set (where);
 317                 } else if (cursor == playhead_cursor) {
 318                         UpdateAllTransportClocks (cursor->current_frame);
 319                 }
 320         }
 321
 322         return TRUE;
 323 }
 324
 325
 326 void
 327 Editor::popup_ruler_menu (nframes_t where, ItemType t)
 328 {
 329         using namespace Menu_Helpers;
 330
 331         if (editor_ruler_menu == 0) {
 332                 editor_ruler_menu = new Menu;
 333                 editor_ruler_menu->set_name ("ArdourContextMenu");
 334         }
 335
 336         // always build from scratch
 337         MenuList& ruler_items = editor_ruler_menu->items();
 338         editor_ruler_menu->set_name ("ArdourContextMenu");
 339         ruler_items.clear();
 340
 341         CheckMenuItem * mitem;
 342
 343         no_ruler_shown_update = true;
 344
 345         switch (t) {
 346         case MarkerBarItem:
 347                 ruler_items.push_back (MenuElem (_("New location marker"), bind ( mem_fun(*this, &Editor::mouse_add_new_marker), where)));
 348                 ruler_items.push_back (MenuElem (_("Clear all locations"), mem_fun(*this, &Editor::clear_markers)));
 349                 ruler_items.push_back (MenuElem (_("Unhide locations"), mem_fun(*this, &Editor::unhide_markers)));
 350                 ruler_items.push_back (SeparatorElem ());
 351                 break;
 352         case RangeMarkerBarItem:
 353                 //ruler_items.push_back (MenuElem (_("New Range")));
 354                 ruler_items.push_back (MenuElem (_("Clear all ranges"), mem_fun(*this, &Editor::clear_ranges)));
 355                 ruler_items.push_back (MenuElem (_("Unhide ranges"), mem_fun(*this, &Editor::unhide_ranges)));
 356                 ruler_items.push_back (SeparatorElem ());
 357
 358                 break;
 359         case TransportMarkerBarItem:
 360
 361                 break;
 362
 363         case TempoBarItem:
 364                 ruler_items.push_back (MenuElem (_("New Tempo"), bind ( mem_fun(*this, &Editor::mouse_add_new_tempo_event), where)));
 365                 ruler_items.push_back (MenuElem (_("Clear tempo")));
 366                 ruler_items.push_back (SeparatorElem ());
 367                 break;
 368
 369         case MeterBarItem:
 370                 ruler_items.push_back (MenuElem (_("New Meter"), bind ( mem_fun(*this, &Editor::mouse_add_new_meter_event), where)));
 371                 ruler_items.push_back (MenuElem (_("Clear meter")));
 372                 ruler_items.push_back (SeparatorElem ());
 373                 break;
 374
 375         default:
 376                 break;
 377         }
 378
 379         ruler_items.push_back (CheckMenuElem (_("Min:Secs"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_minsec)));
 380         mitem = (CheckMenuItem *) &ruler_items.back();
 381         if (ruler_shown[ruler_metric_minsec]) {
 382                 mitem->set_active(true);
 383         }
 384
 385         ruler_items.push_back (CheckMenuElem (_("Timecode"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_smpte)));
 386         mitem = (CheckMenuItem *) &ruler_items.back();
 387         if (ruler_shown[ruler_metric_smpte]) {
 388                 mitem->set_active(true);
 389         }
 390
 391         ruler_items.push_back (CheckMenuElem (_("Frames"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_frames)));
 392         mitem = (CheckMenuItem *) &ruler_items.back();
 393         if (ruler_shown[ruler_metric_frames]) {
 394                 mitem->set_active(true);
 395         }
 396
 397         ruler_items.push_back (CheckMenuElem (_("Bars:Beats"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_bbt)));
 398         mitem = (CheckMenuItem *) &ruler_items.back();
 399         if (ruler_shown[ruler_metric_bbt]) {
 400                 mitem->set_active(true);
 401         }
 402
 403         ruler_items.push_back (SeparatorElem ());
 404
 405         ruler_items.push_back (CheckMenuElem (_("Meter"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_meter)));
 406         mitem = (CheckMenuItem *) &ruler_items.back();
 407         if (ruler_shown[ruler_time_meter]) {
 408                 mitem->set_active(true);
 409         }
 410
 411         ruler_items.push_back (CheckMenuElem (_("Tempo"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_tempo)));
 412         mitem = (CheckMenuItem *) &ruler_items.back();
 413         if (ruler_shown[ruler_time_tempo]) {
 414                 mitem->set_active(true);
 415         }
 416
 417         ruler_items.push_back (CheckMenuElem (_("Location Markers"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_marker)));
 418         mitem = (CheckMenuItem *) &ruler_items.back();
 419         if (ruler_shown[ruler_time_marker]) {
 420                 mitem->set_active(true);
 421         }
 422
 423         ruler_items.push_back (CheckMenuElem (_("Range Markers"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_range_marker)));
 424         mitem = (CheckMenuItem *) &ruler_items.back();
 425         if (ruler_shown[ruler_time_range_marker]) {
 426                 mitem->set_active(true);
 427         }
 428
 429         ruler_items.push_back (CheckMenuElem (_("Loop/Punch Ranges"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_transport_marker)));
 430         mitem = (CheckMenuItem *) &ruler_items.back();
 431         if (ruler_shown[ruler_time_transport_marker]) {
 432                 mitem->set_active(true);
 433         }
 434
 435         editor_ruler_menu->popup (1, gtk_get_current_event_time());
 436
 437         no_ruler_shown_update = false;
 438 }
 439
 440 void
 441 Editor::ruler_toggled (int ruler)
 442 {
 443         if (!session) return;
 444         if (ruler < 0 || ruler >= (int) sizeof(ruler_shown)) return;
 445
 446         if (no_ruler_shown_update) return;
 447
 448         if (ruler_shown[ruler]) {
 449                 if (visible_timebars <= 1) {
 450                         // must always have 1 visible
 451                         return;
 452                 }
 453         }
 454
 455         ruler_shown[ruler] = !ruler_shown[ruler];
 456
 457         update_ruler_visibility ();
 458
 459         // update session extra RulerVisibility
 460         store_ruler_visibility ();
 461 }
 462
 463 void
 464 Editor::store_ruler_visibility ()
 465 {
 466         XMLNode* node = new XMLNode(X_("RulerVisibility"));
 467
 468         node->add_property (X_("smpte"), ruler_shown[ruler_metric_smpte] ? "yes": "no");
 469         node->add_property (X_("bbt"), ruler_shown[ruler_metric_bbt] ? "yes": "no");
 470         node->add_property (X_("frames"), ruler_shown[ruler_metric_frames] ? "yes": "no");
 471         node->add_property (X_("minsec"), ruler_shown[ruler_metric_minsec] ? "yes": "no");
 472         node->add_property (X_("tempo"), ruler_shown[ruler_time_tempo] ? "yes": "no");
 473         node->add_property (X_("meter"), ruler_shown[ruler_time_meter] ? "yes": "no");
 474         node->add_property (X_("marker"), ruler_shown[ruler_time_marker] ? "yes": "no");
 475         node->add_property (X_("rangemarker"), ruler_shown[ruler_time_range_marker] ? "yes": "no");
 476         node->add_property (X_("transportmarker"), ruler_shown[ruler_time_transport_marker] ? "yes": "no");
 477
 478         session->add_extra_xml (*node);
 479         session->set_dirty ();
 480 }
 481
 482 void
 483 Editor::restore_ruler_visibility ()
 484 {
 485         XMLProperty* prop;
 486         XMLNode * node = session->extra_xml (X_("RulerVisibility"));
 487
 488         if (node) {
 489                 if ((prop = node->property ("smpte")) != 0) {
 490                         if (prop->value() == "yes")
 491                                 ruler_shown[ruler_metric_smpte] = true;
 492                         else
 493                                 ruler_shown[ruler_metric_smpte] = false;
 494                 }
 495                 if ((prop = node->property ("bbt")) != 0) {
 496                         if (prop->value() == "yes")
 497                                 ruler_shown[ruler_metric_bbt] = true;
 498                         else
 499                                 ruler_shown[ruler_metric_bbt] = false;
 500                 }
 501                 if ((prop = node->property ("frames")) != 0) {
 502                         if (prop->value() == "yes")
 503                                 ruler_shown[ruler_metric_frames] = true;
 504                         else
 505                                 ruler_shown[ruler_metric_frames] = false;
 506                 }
 507                 if ((prop = node->property ("minsec")) != 0) {
 508                         if (prop->value() == "yes")
 509                                 ruler_shown[ruler_metric_minsec] = true;
 510                         else
 511                                 ruler_shown[ruler_metric_minsec] = false;
 512                 }
 513                 if ((prop = node->property ("tempo")) != 0) {
 514                         if (prop->value() == "yes")
 515                                 ruler_shown[ruler_time_tempo] = true;
 516                         else
 517                                 ruler_shown[ruler_time_tempo] = false;
 518                 }
 519                 if ((prop = node->property ("meter")) != 0) {
 520                         if (prop->value() == "yes")
 521                                 ruler_shown[ruler_time_meter] = true;
 522                         else
 523                                 ruler_shown[ruler_time_meter] = false;
 524                 }
 525                 if ((prop = node->property ("marker")) != 0) {
 526                         if (prop->value() == "yes")
 527                                 ruler_shown[ruler_time_marker] = true;
 528                         else
 529                                 ruler_shown[ruler_time_marker] = false;
 530                 }
 531                 if ((prop = node->property ("rangemarker")) != 0) {
 532                         if (prop->value() == "yes")
 533                                 ruler_shown[ruler_time_range_marker] = true;
 534                         else
 535                                 ruler_shown[ruler_time_range_marker] = false;
 536                 }
 537                 if ((prop = node->property ("transportmarker")) != 0) {
 538                         if (prop->value() == "yes")
 539                                 ruler_shown[ruler_time_transport_marker] = true;
 540                         else
 541                                 ruler_shown[ruler_time_transport_marker] = false;
 542                 }
 543
 544         }
 545
 546         update_ruler_visibility ();
 547 }
 548
 549
 550 void
 551 Editor::update_ruler_visibility ()
 552 {
 553         using namespace Box_Helpers;
 554         BoxList & lab_children =  time_button_vbox.children();
 555         BoxList & ruler_children =  time_canvas_vbox.children();
 556
 557         visible_timebars = 0;
 558
 559         lab_children.clear();
 560
 561         // leave the last one (the time_canvas) intact
 562         while (ruler_children.size() > 1) {
 563                 ruler_children.pop_front();
 564         }
 565
 566         BoxList::iterator canvaspos = ruler_children.begin();
 567
 568         _smpte_ruler = gtk_custom_hruler_new ();
 569         smpte_ruler = Glib::wrap (_smpte_ruler);
 570         smpte_ruler->set_name ("SMPTERuler");
 571         smpte_ruler->set_size_request (-1, (int)timebar_height);
 572         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
 573
 574         _bbt_ruler = gtk_custom_hruler_new ();
 575         bbt_ruler = Glib::wrap (_bbt_ruler);
 576         bbt_ruler->set_name ("BBTRuler");
 577         bbt_ruler->set_size_request (-1, (int)timebar_height);
 578         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 579
 580         _frames_ruler = gtk_custom_hruler_new ();
 581         frames_ruler = Glib::wrap (_frames_ruler);
 582         frames_ruler->set_name ("FramesRuler");
 583         frames_ruler->set_size_request (-1, (int)timebar_height);
 584         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
 585
 586         _minsec_ruler = gtk_custom_hruler_new ();
 587         minsec_ruler = Glib::wrap (_minsec_ruler);
 588         minsec_ruler->set_name ("MinSecRuler");
 589         minsec_ruler->set_size_request (-1, (int)timebar_height);
 590         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
 591
 592
 593         smpte_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 594         bbt_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 595         frames_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 596         minsec_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 597
 598         smpte_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 599         bbt_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 600         frames_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 601         minsec_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 602
 603         smpte_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 604         bbt_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 605         frames_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 606         minsec_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 607
 608         smpte_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 609         bbt_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 610         frames_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 611         minsec_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 612
 613         ruler_children.insert (canvaspos, Element(*_ruler_separator, PACK_SHRINK, PACK_START));
 614
 615         if (ruler_shown[ruler_metric_minsec]) {
 616                 lab_children.push_back (Element(minsec_label, PACK_SHRINK, PACK_START));
 617                 ruler_children.insert (canvaspos, Element(*minsec_ruler, PACK_SHRINK, PACK_START));
 618                 visible_timebars++;
 619         }
 620
 621         if (ruler_shown[ruler_metric_smpte]) {
 622                 lab_children.push_back (Element(smpte_label, PACK_SHRINK, PACK_START));
 623                 ruler_children.insert (canvaspos, Element(*smpte_ruler, PACK_SHRINK, PACK_START));
 624                 visible_timebars++;
 625         }
 626
 627         if (ruler_shown[ruler_metric_frames]) {
 628                 lab_children.push_back (Element(frame_label, PACK_SHRINK, PACK_START));
 629                 ruler_children.insert (canvaspos, Element(*frames_ruler, PACK_SHRINK, PACK_START));
 630                 visible_timebars++;
 631         }
 632
 633         if (ruler_shown[ruler_metric_bbt]) {
 634                 lab_children.push_back (Element(bbt_label, PACK_SHRINK, PACK_START));
 635                 ruler_children.insert (canvaspos, Element(*bbt_ruler, PACK_SHRINK, PACK_START));
 636                 visible_timebars++;
 637         }
 638
 639         double tbpos = 1.0;
 640         double old_unit_pos ;
 641
 642         if (ruler_shown[ruler_time_meter]) {
 643                 lab_children.push_back (Element(meter_label, PACK_SHRINK, PACK_START));
 644
 645                 old_unit_pos = meter_group->property_y();
 646                 if (tbpos != old_unit_pos) {
 647                         meter_group->move ( 0.0, tbpos - old_unit_pos);
 648                 }
 649                 meter_group->show();
 650                 tbpos += timebar_height;
 651                 visible_timebars++;
 652         }
 653         else {
 654                 meter_group->hide();
 655         }
 656
 657         if (ruler_shown[ruler_time_tempo]) {
 658                 lab_children.push_back (Element(tempo_label, PACK_SHRINK, PACK_START));
 659                 old_unit_pos = tempo_group->property_y();
 660                 if (tbpos != old_unit_pos) {
 661                         tempo_group->move(0.0, tbpos - old_unit_pos);
 662                 }
 663                 tempo_group->show();
 664                 tbpos += timebar_height;
 665                 visible_timebars++;
 666         }
 667         else {
 668                 tempo_group->hide();
 669         }
 670
 671         if (ruler_shown[ruler_time_marker]) {
 672                 lab_children.push_back (Element(mark_label, PACK_SHRINK, PACK_START));
 673                 old_unit_pos = marker_group->property_y();
 674                 if (tbpos != old_unit_pos) {
 675                         marker_group->move ( 0.0, tbpos - old_unit_pos);
 676                 }
 677                 marker_group->show();
 678                 tbpos += timebar_height;
 679                 visible_timebars++;
 680         }
 681         else {
 682                 marker_group->hide();
 683         }
 684
 685         if (ruler_shown[ruler_time_range_marker]) {
 686                 lab_children.push_back (Element(range_mark_label, PACK_SHRINK, PACK_START));
 687                 old_unit_pos = range_marker_group->property_y();
 688                 if (tbpos != old_unit_pos) {
 689                         range_marker_group->move (0.0, tbpos - old_unit_pos);
 690                 }
 691                 range_marker_group->show();
 692                 tbpos += timebar_height;
 693                 visible_timebars++;
 694         }
 695         else {
 696                 range_marker_group->hide();
 697         }
 698
 699         if (ruler_shown[ruler_time_transport_marker]) {
 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         time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars));
 714         time_canvas_event_box.queue_resize();
 715
 716         update_fixed_rulers();
 717         //update_tempo_based_rulers();
 718         redisplay_tempo (false);
 719
 720         time_canvas_event_box.show_all();
 721         time_button_frame.show_all();
 722 }
 723
 724 void
 725 Editor::update_just_smpte ()
 726 {
 727         ENSURE_GUI_THREAD(mem_fun(*this, &Editor::update_just_smpte));
 728
 729         if (session == 0) {
 730                 return;
 731         }
 732
 733         /* XXX Note the potential loss of accuracy here as we convert from
 734            an uint32_t (or larger) to a float ... what to do ?
 735         */
 736
 737         nframes_t page = (nframes_t) floor (canvas_width * frames_per_unit);
 738         nframes_t rightmost_frame = leftmost_frame + page;
 739
 740         if (ruler_shown[ruler_metric_smpte]) {
 741                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 742                                             leftmost_frame, session->current_end_frame());
 743         }
 744 }
 745
 746 void
 747 Editor::update_fixed_rulers ()
 748 {
 749         nframes_t rightmost_frame;
 750
 751         if (session == 0) {
 752                 return;
 753         }
 754
 755         /* XXX Note the potential loss of accuracy here as we convert from
 756            an uint32_t (or larger) to a float ... what to do ?
 757         */
 758
 759         nframes_t page = (nframes_t) floor (canvas_width * frames_per_unit);
 760
 761         ruler_metrics[ruler_metric_smpte].units_per_pixel = frames_per_unit;
 762         ruler_metrics[ruler_metric_frames].units_per_pixel = frames_per_unit;
 763         ruler_metrics[ruler_metric_minsec].units_per_pixel = frames_per_unit;
 764
 765         rightmost_frame = leftmost_frame + page;
 766
 767         /* these force a redraw, which in turn will force execution of the metric callbacks
 768            to compute the relevant ticks to display.
 769         */
 770
 771         if (ruler_shown[ruler_metric_smpte]) {
 772                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 773                                             leftmost_frame, session->current_end_frame());
 774         }
 775
 776         if (ruler_shown[ruler_metric_frames]) {
 777                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_frames_ruler), leftmost_frame, rightmost_frame,
 778                                             leftmost_frame, session->current_end_frame());
 779         }
 780
 781         if (ruler_shown[ruler_metric_minsec]) {
 782                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_minsec_ruler), leftmost_frame, rightmost_frame,
 783                                             leftmost_frame, session->current_end_frame());
 784         }
 785 }
 786
 787 void
 788 Editor::update_tempo_based_rulers ()
 789 {
 790         if (session == 0) {
 791                 return;
 792         }
 793
 794         /* XXX Note the potential loss of accuracy here as we convert from
 795            an uint32_t (or larger) to a float ... what to do ?
 796         */
 797
 798         nframes_t page = (nframes_t) floor (canvas_width * frames_per_unit);
 799         ruler_metrics[ruler_metric_bbt].units_per_pixel = frames_per_unit;
 800
 801         if (ruler_shown[ruler_metric_bbt]) {
 802                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_bbt_ruler), leftmost_frame, leftmost_frame+page,
 803                                             leftmost_frame, session->current_end_frame());
 804         }
 805 }
 806
 807 /* Mark generation */
 808
 809 gint
 810 Editor::_metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 811 {
 812         return ruler_editor->metric_get_smpte (marks, lower, upper, maxchars);
 813 }
 814
 815 gint
 816 Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 817 {
 818         return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 819 }
 820
 821 gint
 822 Editor::_metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 823 {
 824         return ruler_editor->metric_get_frames (marks, lower, upper, maxchars);
 825 }
 826
 827 gint
 828 Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 829 {
 830         return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 831 }
 832
 833 gint
 834 Editor::metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 835 {
 836         nframes_t range;
 837         nframes_t pos;
 838         nframes_t spacer;
 839         nframes_t fr;
 840         SMPTE::Time smpte;
 841         gchar buf[16];
 842         gint nmarks = 0;
 843         gint n;
 844         bool show_bits = false;
 845         bool show_frames = false;
 846         bool show_seconds = false;
 847         bool show_minutes = false;
 848         bool show_hours = false;
 849         int mark_modulo;
 850
 851         if (session == 0) {
 852                 return 0;
 853         }
 854
 855         fr = session->frame_rate();
 856
 857         if (lower > (spacer = (nframes_t)(128 * Editor::get_current_zoom ()))) {
 858                 lower = lower - spacer;
 859         } else {
 860                 lower = 0;
 861         }
 862         upper = upper + spacer;
 863         range = (nframes_t) floor (upper - lower);
 864
 865         if (range < (2 * session->frames_per_smpte_frame())) { /* 0 - 2 frames */
 866                 show_bits = true;
 867                 mark_modulo = 20;
 868                 nmarks = 1 + (2 * Config->get_subframes_per_frame());
 869         } else if (range <= (fr / 4)) { /* 2 frames - 0.250 second */
 870                 show_frames = true;
 871                 mark_modulo = 1;
 872                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 873         } else if (range <= (fr / 2)) { /* 0.25-0.5 second */
 874                 show_frames = true;
 875                 mark_modulo = 2;
 876                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 877         } else if (range <= fr) { /* 0.5-1 second */
 878                 show_frames = true;
 879                 mark_modulo = 5;
 880                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 881         } else if (range <= 2 * fr) { /* 1-2 seconds */
 882                 show_frames = true;
 883                 mark_modulo = 10;
 884                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 885         } else if (range <= 8 * fr) { /* 2-8 seconds */
 886                 show_seconds = true;
 887                 mark_modulo = 1;
 888                 nmarks = 1 + (range / fr);
 889         } else if (range <= 16 * fr) { /* 8-16 seconds */
 890                 show_seconds = true;
 891                 mark_modulo = 2;
 892                 nmarks = 1 + (range / fr);
 893         } else if (range <= 30 * fr) { /* 16-30 seconds */
 894                 show_seconds = true;
 895                 mark_modulo = 5;
 896                 nmarks = 1 + (range / fr);
 897         } else if (range <= 60 * fr) { /* 30-60 seconds */
 898                 show_seconds = true;
 899                 mark_modulo = 5;
 900                 nmarks = 1 + (range / fr);
 901         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
 902                 show_seconds = true;
 903                 mark_modulo = 20;
 904                 nmarks = 1 + (range / fr);
 905         } else if (range <= 4 * 60 * fr) { /* 2-4 minutes */
 906                 show_seconds = true;
 907                 mark_modulo = 30;
 908                 nmarks = 1 + (range / fr);
 909         } else if (range <= 10 * 60 * fr) { /* 4-10 minutes */
 910                 show_minutes = true;
 911                 mark_modulo = 2;
 912                 nmarks = 1 + 10;
 913         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
 914                 show_minutes = true;
 915                 mark_modulo = 5;
 916                 nmarks = 1 + 30;
 917         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
 918                 show_minutes = true;
 919                 mark_modulo = 10;
 920                 nmarks = 1 + 60;
 921         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
 922                 show_minutes = true;
 923                 mark_modulo = 30;
 924                 nmarks = 1 + (60 * 4);
 925         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
 926                 show_hours = true;
 927                 mark_modulo = 1;
 928                 nmarks = 1 + 8;
 929         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
 930                 show_hours = true;
 931                 mark_modulo = 1;
 932                 nmarks = 1 + 24;
 933         } else {
 934
 935                 /* not possible if nframes_t is a 32 bit quantity */
 936
 937                 show_hours = true;
 938                 mark_modulo = 4;
 939                 nmarks = 1 + 24;
 940         }
 941
 942         pos = (nframes_t) floor (lower);
 943
 944         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
 945
 946         if (show_bits) {
 947                 // Find smpte time of this sample (pos) with subframe accuracy
 948                 session->sample_to_smpte(pos, smpte, true /* use_offset */, true /* use_subframes */ );
 949
 950                 for (n = 0; n < nmarks; n++) {
 951                         session->smpte_to_sample(smpte, pos, true /* use_offset */, true /* use_subframes */ );
 952                         if ((smpte.subframes % mark_modulo) == 0) {
 953                                 if (smpte.subframes == 0) {
 954                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 955                                         snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
 956                                 } else {
 957                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
 958                                         snprintf (buf, sizeof(buf), ".%02u", smpte.subframes);
 959                                 }
 960                         } else {
 961                                 snprintf (buf, sizeof(buf)," ");
 962                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
 963
 964                         }
 965                         (*marks)[n].label = g_strdup (buf);
 966                         (*marks)[n].position = pos;
 967
 968                         // Increment subframes by one
 969                         SMPTE::increment_subframes( smpte );
 970                 }
 971         } else if (show_seconds) {
 972                 // Find smpte time of this sample (pos)
 973                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
 974                 // Go to next whole second down
 975                 SMPTE::seconds_floor( smpte );
 976
 977                 for (n = 0; n < nmarks; n++) {
 978                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
 979                         if ((smpte.seconds % mark_modulo) == 0) {
 980                                 if (smpte.seconds == 0) {
 981                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 982                                         (*marks)[n].position = pos;
 983                                 } else {
 984                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
 985                                         (*marks)[n].position = pos;
 986                                 }
 987                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
 988                         } else {
 989                                 snprintf (buf, sizeof(buf)," ");
 990                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
 991                                 (*marks)[n].position = pos;
 992
 993                         }
 994                         (*marks)[n].label = g_strdup (buf);
 995                         SMPTE::increment_seconds( smpte );
 996                 }
 997         } else if (show_minutes) {
 998                 // Find smpte time of this sample (pos)
 999                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1000                 // Go to next whole minute down
1001                 SMPTE::minutes_floor( smpte );
1002
1003                 for (n = 0; n < nmarks; n++) {
1004                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1005                         if ((smpte.minutes % mark_modulo) == 0) {
1006                                 if (smpte.minutes == 0) {
1007                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1008                                 } else {
1009                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1010                                 }
1011                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1012                         } else {
1013                                 snprintf (buf, sizeof(buf)," ");
1014                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1015
1016                         }
1017                         (*marks)[n].label = g_strdup (buf);
1018                         (*marks)[n].position = pos;
1019                         SMPTE::increment_minutes( smpte );
1020                 }
1021         } else if (show_hours) {
1022                 // Find smpte time of this sample (pos)
1023                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1024                 // Go to next whole hour down
1025                 SMPTE::hours_floor( smpte );
1026
1027                 for (n = 0; n < nmarks; n++) {
1028                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1029                         if ((smpte.hours % mark_modulo) == 0) {
1030                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1031                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1032                         } else {
1033                                 snprintf (buf, sizeof(buf)," ");
1034                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1035
1036                         }
1037                         (*marks)[n].label = g_strdup (buf);
1038                         (*marks)[n].position = pos;
1039
1040                         SMPTE::increment_hours( smpte );
1041                 }
1042         } else { // show_frames
1043                 // Find smpte time of this sample (pos)
1044                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1045                 // Go to next whole frame down
1046                 SMPTE::frames_floor( smpte );
1047
1048                 for (n = 0; n < nmarks; n++) {
1049                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1050                         if ((smpte.frames % mark_modulo) == 0)  {
1051                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1052                                 (*marks)[n].position = pos;
1053                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1054                         } else {
1055                                 snprintf (buf, sizeof(buf)," ");
1056                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1057                                 (*marks)[n].position = pos;
1058
1059                         }
1060                         (*marks)[n].label = g_strdup (buf);
1061                         SMPTE::increment( smpte );
1062                 }
1063         }
1064
1065         return nmarks;
1066 }
1067
1068
1069 gint
1070 Editor::metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1071 {
1072         if (session == 0) {
1073                 return 0;
1074         }
1075
1076         TempoMap::BBTPointList::iterator i;
1077
1078         uint32_t beats = 0;
1079         uint32_t bars = 0;
1080         uint32_t desirable_marks;
1081         uint32_t magic_accent_number = 1;
1082         gint nmarks;
1083         char buf[64];
1084         gint  n = 0;
1085         nframes_t pos;
1086         bool bar_helper_on = true;
1087
1088         BBT_Time next_beat;
1089         nframes_t next_beat_pos;
1090
1091         if ((desirable_marks = maxchars / 7) == 0) {
1092                return 0;
1093         }
1094
1095         /* align the tick marks to whatever we're snapping to... */
1096
1097         switch (snap_type) {
1098         case SnapToAThirdBeat:
1099                 bbt_beat_subdivision = 3;
1100                 break;
1101         case SnapToAQuarterBeat:
1102                 bbt_beat_subdivision = 4;
1103                 break;
1104         case SnapToAEighthBeat:
1105                 bbt_beat_subdivision = 8;
1106                 magic_accent_number = 2;
1107                 break;
1108         case SnapToASixteenthBeat:
1109                 bbt_beat_subdivision = 16;
1110                 magic_accent_number = 4;
1111                 break;
1112         case SnapToAThirtysecondBeat:
1113                 bbt_beat_subdivision = 32;
1114                 magic_accent_number = 8;
1115                 break;
1116         default:
1117                bbt_beat_subdivision = 4;
1118                 break;
1119         }
1120
1121         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1122                 return 0;
1123         }
1124
1125         i = current_bbt_points->end();
1126         i--;
1127         bars = (*i).bar - (*current_bbt_points->begin()).bar;
1128         beats = current_bbt_points->size() - bars;
1129
1130         /*Only show the bar helper if there aren't many bars on the screen */
1131         if (bars > 1) {
1132                 bar_helper_on = false;
1133         }
1134
1135         if (desirable_marks > (beats / 4)) {
1136
1137                 /* we're in beat land...*/
1138
1139                 uint32_t tick = 0;
1140                 uint32_t skip;
1141                 uint32_t t;
1142                 nframes_t frame_skip;
1143                 double frame_skip_error;
1144                 double accumulated_error;
1145                 double position_of_helper;
1146                 bool i_am_accented = false;
1147                 bool we_need_ticks = false;
1148                 bool helper_active = false;
1149
1150                 position_of_helper = lower + (30 * Editor::get_current_zoom ());
1151
1152                 if (desirable_marks >= (beats)) {
1153                         nmarks = (beats * bbt_beat_subdivision) + 1;
1154                         we_need_ticks = true;
1155                 } else {
1156                         nmarks = beats + 1;
1157                 }
1158
1159                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1160
1161                 (*marks)[0].label = g_strdup(" ");
1162                 (*marks)[0].position = lower;
1163                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1164
1165                 for (n = 1,   i = current_bbt_points->begin(); n < nmarks && i != current_bbt_points->end(); ++i) {
1166
1167                         if ((*i).frame < lower && (bar_helper_on)) {
1168                                         snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1169                                         (*marks)[0].label = g_strdup (buf);
1170                                         helper_active = true;
1171                         } else {
1172
1173                           if ((*i).type == TempoMap::Bar)  {
1174                             if (((*i).frame < position_of_helper) && helper_active) {
1175                               snprintf (buf, sizeof(buf), " ");
1176                             } else {
1177                               snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1178                             }
1179                             (*marks)[n].label = g_strdup (buf);
1180                             (*marks)[n].position = (*i).frame;
1181                             (*marks)[n].style = GtkCustomRulerMarkMajor;
1182                             n++;
1183
1184                           } else if (((*i).type == TempoMap::Beat) && ((*i).beat > 1)) {
1185                             ((((*i).frame < position_of_helper) && bar_helper_on) || !we_need_ticks) ?
1186                               snprintf (buf, sizeof(buf), " ") : snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1187                             if (((*i).beat % 2 == 1) || we_need_ticks) {
1188                               (*marks)[n].style = GtkCustomRulerMarkMinor;
1189                             } else {
1190                               (*marks)[n].style = GtkCustomRulerMarkMicro;
1191                             }
1192                             (*marks)[n].label =  g_strdup (buf);
1193                             (*marks)[n].position = (*i).frame;
1194                             n++;
1195                           }
1196
1197                         }
1198
1199
1200                         /* Add the tick marks */
1201
1202                         if (we_need_ticks && (*i).type == TempoMap::Beat) {
1203
1204                                 /* Find the next beat */
1205
1206                                 next_beat.beats = (*i).beat;
1207                                 next_beat.bars = (*i).bar;
1208
1209                                 if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1210                                   next_beat.beats += 1;
1211                                 } else {
1212                                   next_beat.bars += 1;
1213                                   next_beat.beats = 1;
1214                                 }
1215
1216                                 next_beat_pos = session->tempo_map().frame_time(next_beat);
1217
1218                                 frame_skip = (nframes_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1219                                 frame_skip_error -= frame_skip;
1220                                 skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1221
1222                                 pos = (*i).frame + frame_skip;
1223                                 accumulated_error = frame_skip_error;
1224
1225                                 tick = skip;
1226
1227                                 for (t = 0; (tick < Meter::ticks_per_beat) && (n < nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1228
1229                                         if (t % magic_accent_number == (magic_accent_number - 1)) {
1230                                                 i_am_accented = true;
1231                                         }
1232                                         if (Editor::get_current_zoom () > 32) {
1233                                                 snprintf (buf, sizeof(buf), " ");
1234                                         } else if ((Editor::get_current_zoom () > 8) && !i_am_accented) {
1235                                                 snprintf (buf, sizeof(buf), " ");
1236                                         } else  if (bar_helper_on && (pos < position_of_helper)) {
1237                                                 snprintf (buf, sizeof(buf), " ");
1238                                         } else {
1239                                                 snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1240                                         }
1241
1242                                         (*marks)[n].label = g_strdup (buf);
1243
1244                                         /* Error compensation for float to nframes_t*/
1245                                         accumulated_error += frame_skip_error;
1246                                         if (accumulated_error > 1) {
1247                                                 pos += 1;
1248                                                 accumulated_error -= 1.0f;
1249                                         }
1250
1251                                         (*marks)[n].position = pos;
1252
1253                                         if ((bbt_beat_subdivision > 4) && i_am_accented) {
1254                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1255                                         } else {
1256                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1257                                         }
1258                                         i_am_accented = false;
1259                                         n++;
1260
1261                                 }
1262                         }
1263                 }
1264                 return n; //return the actual number of marks made, since we might have skipped some fro fractional time signatures
1265
1266        } else {
1267
1268                 /* we're in bar land */
1269
1270                 if (desirable_marks < (bars / 256)) {
1271                         nmarks = 1;
1272                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1273                         snprintf (buf, sizeof(buf), "too many bars... (currently %" PRIu32 ")", bars );
1274                         (*marks)[0].style = GtkCustomRulerMarkMajor;
1275                         (*marks)[0].label = g_strdup (buf);
1276                         (*marks)[0].position = lower;
1277                 } else if (desirable_marks < (uint32_t)(nmarks = (gint) (bars / 64) + 1)) {
1278                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1279                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1280                                 if ((*i).type == TempoMap::Bar)  {
1281                                         if ((*i).bar % 64 == 1) {
1282                                                 if ((*i).bar % 256 == 1) {
1283                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1284                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1285                                                 } else {
1286                                                         snprintf (buf, sizeof(buf), " ");
1287                                                         if ((*i).bar % 256 == 129)  {
1288                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1289                                                         } else {
1290                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1291                                                         }
1292                                                 }
1293                                                 (*marks)[n].label = g_strdup (buf);
1294                                                 (*marks)[n].position = (*i).frame;
1295                                                 n++;
1296                                         }
1297                                 }
1298                         }
1299                 } else if (desirable_marks < (uint32_t)(nmarks = (bars / 16) + 1)) {
1300                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1301                         for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1302                                 if ((*i).type == TempoMap::Bar)  {
1303                                         if ((*i).bar % 16 == 1) {
1304                                                 if ((*i).bar % 64 == 1) {
1305                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1306                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1307                                                 } else {
1308                                                         snprintf (buf, sizeof(buf), " ");
1309                                                         if ((*i).bar % 64 == 33)  {
1310                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1311                                                         } else {
1312                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1313                                                         }
1314                                                 }
1315                                                 (*marks)[n].label = g_strdup (buf);
1316                                                 (*marks)[n].position = (*i).frame;
1317                                                 n++;
1318                                         }
1319                                 }
1320                         }
1321                 } else if (desirable_marks < (uint32_t)(nmarks = (bars / 4) + 1)){
1322                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1323                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; ++i) {
1324                                 if ((*i).type == TempoMap::Bar)  {
1325                                         if ((*i).bar % 4 == 1) {
1326                                                 if ((*i).bar % 16 == 1) {
1327                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1328                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1329                                                 } else {
1330                                                         snprintf (buf, sizeof(buf), " ");
1331                                                         if ((*i).bar % 16 == 9)  {
1332                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1333                                                         } else {
1334                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1335                                                         }
1336                                                 }
1337                                                 (*marks)[n].label = g_strdup (buf);
1338                                                 (*marks)[n].position = (*i).frame;
1339                                                 n++;
1340                                         }
1341                                 }
1342                         }
1343                 } else {
1344                         nmarks = bars + 1;
1345                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks );
1346                         for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1347                                 if ((*i).type == TempoMap::Bar)  {
1348                                         if ((*i).bar % 4 == 1) {
1349                                                 snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1350                                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1351                                         } else {
1352                                                 snprintf (buf, sizeof(buf), " ");
1353                                                 if ((*i).bar % 4 == 3)  {
1354                                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1355                                                 } else {
1356                                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1357                                                 }
1358                                         }
1359                                         (*marks)[n].label = g_strdup (buf);
1360                                         (*marks)[n].position = (*i).frame;
1361                                         n++;
1362                                 }
1363                         }
1364                 }
1365                 return n;
1366         }
1367 }
1368
1369 gint
1370 Editor::metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1371 {
1372         nframes_t mark_interval;
1373         nframes_t pos;
1374         nframes_t ilower = (nframes_t) floor (lower);
1375         nframes_t iupper = (nframes_t) floor (upper);
1376         gchar buf[16];
1377         gint nmarks;
1378         gint n;
1379
1380         if (session == 0) {
1381                 return 0;
1382         }
1383
1384         mark_interval = (iupper - ilower) / 5;
1385         if (mark_interval > session->frame_rate()) {
1386                 mark_interval -= mark_interval % session->frame_rate();
1387         } else {
1388                 mark_interval = session->frame_rate() / (session->frame_rate() / mark_interval ) ;
1389         }
1390         nmarks = 5;
1391         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1392         for (n = 0, pos = ilower; n < nmarks; pos += mark_interval, ++n) {
1393                 snprintf (buf, sizeof(buf), "%u", pos);
1394                 (*marks)[n].label = g_strdup (buf);
1395                 (*marks)[n].position = pos;
1396                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1397         }
1398
1399         return nmarks;
1400 }
1401
1402 static void
1403 sample_to_clock_parts ( nframes_t sample,
1404                         nframes_t sample_rate,
1405                         long *hrs_p,
1406                         long *mins_p,
1407                         long *secs_p,
1408                         long *millisecs_p)
1409
1410 {
1411         nframes_t left;
1412         long hrs;
1413         long mins;
1414         long secs;
1415         long millisecs;
1416
1417         left = sample;
1418         hrs = left / (sample_rate * 60 * 60);
1419         left -= hrs * sample_rate * 60 * 60;
1420         mins = left / (sample_rate * 60);
1421         left -= mins * sample_rate * 60;
1422         secs = left / sample_rate;
1423         left -= secs * sample_rate;
1424         millisecs = left * 1000 / sample_rate;
1425
1426         *millisecs_p = millisecs;
1427         *secs_p = secs;
1428         *mins_p = mins;
1429         *hrs_p = hrs;
1430
1431         return;
1432 }
1433
1434 gint
1435 Editor::metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1436 {
1437         nframes_t range;
1438         nframes_t fr;
1439         nframes_t mark_interval;
1440         nframes_t pos;
1441         nframes_t spacer;
1442         long hrs, mins, secs, millisecs;
1443         gchar buf[16];
1444         gint nmarks;
1445         gint n;
1446         gint mark_modulo = 100;
1447         bool show_seconds = false;
1448         bool show_minutes = false;
1449         bool show_hours = false;
1450         nframes_t ilower = (nframes_t) floor (lower);
1451         nframes_t iupper = (nframes_t) floor (upper);
1452
1453         if (session == 0) {
1454                 return 0;
1455         }
1456
1457         fr = session->frame_rate();
1458
1459         /* to prevent 'flashing' */
1460         if (lower > (spacer = (nframes_t)(128 * Editor::get_current_zoom ()))) {
1461                 lower = lower - spacer;
1462         } else {
1463                 lower = 0;
1464         }
1465         upper = upper + spacer;
1466         range = iupper - ilower;
1467
1468         if (range <  (fr / 50)) {
1469                 mark_interval =  fr / 100; /* show 1/100 seconds */
1470                 mark_modulo = 10;
1471         } else if (range <= (fr / 10)) { /* 0-0.1 second */
1472                 mark_interval = fr / 50; /* show 1/50 seconds */
1473                 mark_modulo = 20;
1474         } else if (range <= (fr / 2)) { /* 0-0.5 second */
1475                 mark_interval = fr / 20;  /* show 1/20 seconds */
1476                 mark_modulo = 100;
1477         } else if (range <= fr) { /* 0-1 second */
1478                 mark_interval = fr / 10;  /* show 1/10 seconds */
1479                 mark_modulo = 200;
1480         } else if (range <= 2 * fr) { /* 1-2 seconds */
1481                 mark_interval = fr / 2; /* show 1/2 seconds */
1482                 mark_modulo = 500;
1483         } else if (range <= 8 * fr) { /* 2-5 seconds */
1484                 mark_interval =  fr / 5; /* show 2 seconds */
1485                 mark_modulo = 1000;
1486         } else if (range <= 16 * fr) { /* 8-16 seconds */
1487                 mark_interval =  fr; /* show 1 seconds */
1488                 show_seconds = true;
1489                 mark_modulo = 5;
1490         } else if (range <= 30 * fr) { /* 10-30 seconds */
1491                 mark_interval =  fr; /* show 10 seconds */
1492                 show_seconds = true;
1493                 mark_modulo = 5;
1494         } else if (range <= 60 * fr) { /* 30-60 seconds */
1495                 mark_interval = 5 * fr; /* show 5 seconds */
1496                 show_seconds = true;
1497                 mark_modulo = 3;
1498         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1499                 mark_interval = 5 * fr; /* show 5 seconds */
1500                 show_seconds = true;
1501                 mark_modulo = 3;
1502         } else if (range <= 4 * 60 * fr) { /* 4 minutes */
1503                 mark_interval = 10 * fr; /* show 10 seconds */
1504                 show_seconds = true;
1505                 mark_modulo = 30;
1506         } else if (range <= 10 * 60 * fr) { /* 10 minutes */
1507                 mark_interval = 30 * fr; /* show 30 seconds */
1508                 show_seconds = true;
1509                 mark_modulo = 60;
1510         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1511                 mark_interval =  60 * fr; /* show 1 minute */
1512                 show_minutes = true;
1513                 mark_modulo = 5;
1514         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1515                 mark_interval = 2 * 60 * fr; /* show 2 minutes */
1516                 show_minutes = true;
1517                 mark_modulo = 10;
1518         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1519                 mark_interval = 5 * 60 * fr; /* show 10 minutes */
1520                 show_minutes = true;
1521                 mark_modulo = 30;
1522         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1523                 mark_interval = 20 * 60 * fr; /* show 20 minutes */
1524                 show_minutes = true;
1525                 mark_modulo = 60;
1526         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1527                 mark_interval =  60 * 60 * fr; /* show 60 minutes */
1528                 show_hours = true;
1529                 mark_modulo = 2;
1530         } else {
1531
1532                 /* not possible if nframes_t is a 32 bit quantity */
1533
1534                 mark_interval = 4 * 60 * 60 * fr; /* show 4 hrs */
1535         }
1536
1537         nmarks = 1 + (range / mark_interval);
1538         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1539         pos = ((ilower + (mark_interval/2))/mark_interval) * mark_interval;
1540
1541         if (show_seconds) {
1542                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1543                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1544                         if (secs % mark_modulo == 0) {
1545                                 if (secs == 0) {
1546                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1547                                 } else {
1548                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1549                                 }
1550                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1551                         } else {
1552                                 snprintf (buf, sizeof(buf), " ");
1553                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1554                         }
1555                         (*marks)[n].label = g_strdup (buf);
1556                         (*marks)[n].position = pos;
1557                 }
1558         } else if (show_minutes) {
1559                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1560                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1561                         if (mins % mark_modulo == 0) {
1562                                 if (mins == 0) {
1563                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1564                                 } else {
1565                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1566                                 }
1567                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1568                         } else {
1569                                 snprintf (buf, sizeof(buf), " ");
1570                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1571                         }
1572                         (*marks)[n].label = g_strdup (buf);
1573                         (*marks)[n].position = pos;
1574                 }
1575         } else if (show_hours) {
1576                  for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1577                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1578                         if (hrs % mark_modulo == 0) {
1579                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1580                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1581                         } else {
1582                                 snprintf (buf, sizeof(buf), " ");
1583                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1584                         }
1585                         (*marks)[n].label = g_strdup (buf);
1586                         (*marks)[n].position = pos;
1587                 }
1588         } else {
1589                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1590                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1591                         if (millisecs % mark_modulo == 0) {
1592                                 if (millisecs == 0) {
1593                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1594                                 } else {
1595                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1596                                 }
1597                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1598                         } else {
1599                                 snprintf (buf, sizeof(buf), " ");
1600                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1601                         }
1602                         (*marks)[n].label = g_strdup (buf);
1603                         (*marks)[n].position = pos;
1604                 }
1605         }
1606
1607         return nmarks;
1608 }