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                 break;
 163
 164         case 2:
 165                 /* edit cursor */
 166                 if (snap_type != Editing::SnapToEditCursor) {
 167                         snap_to (where);
 168                 }
 169                 edit_cursor->set_position (where);
 170                 edit_cursor_clock.set (where);
 171                 break;
 172
 173         default:
 174                 break;
 175         }
 176
 177         return TRUE;
 178 }
 179
 180 gint
 181 Editor::ruler_button_release (GdkEventButton* ev)
 182 {
 183         gint x,y;
 184         Gdk::ModifierType state;
 185
 186         /* need to use the correct x,y, the event lies */
 187         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 188
 189         ruler_pressed_button = 0;
 190
 191         if (session == 0) {
 192                 return FALSE;
 193         }
 194
 195         hide_verbose_canvas_cursor();
 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                 snap_to (where);
 204                 session->request_locate (where);
 205                 break;
 206
 207         case 2:
 208                 /* edit cursor */
 209                 if (snap_type != Editing::SnapToEditCursor) {
 210                         snap_to (where);
 211                 }
 212                 edit_cursor->set_position (where);
 213                 edit_cursor_clock.set (where);
 214                 break;
 215
 216         case 3:
 217                 /* popup menu */
 218                 snap_to (where);
 219                 popup_ruler_menu (where);
 220
 221                 break;
 222         default:
 223                 break;
 224         }
 225
 226
 227         if (ruler_grabbed_widget) {
 228                 ruler_grabbed_widget->remove_modal_grab();
 229                 ruler_grabbed_widget = 0;
 230         }
 231
 232         return TRUE;
 233 }
 234
 235 gint
 236 Editor::ruler_label_button_release (GdkEventButton* ev)
 237 {
 238         if (ev->button == 3)
 239         {
 240                 popup_ruler_menu();
 241         }
 242
 243         return TRUE;
 244 }
 245
 246
 247 gint
 248 Editor::ruler_mouse_motion (GdkEventMotion* ev)
 249 {
 250         if (session == 0 || !ruler_pressed_button) {
 251                 return FALSE;
 252         }
 253
 254         double wcx=0,wcy=0;
 255         double cx=0,cy=0;
 256
 257         gint x,y;
 258         Gdk::ModifierType state;
 259
 260         /* need to use the correct x,y, the event lies */
 261         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 262
 263
 264         track_canvas.c2w (x, y, wcx, wcy);
 265         track_canvas.w2c (wcx, wcy, cx, cy);
 266
 267         nframes_t where = leftmost_frame + pixel_to_frame (x);
 268
 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         if (autoscroll_timeout_tag < 0) {
 275                 if (where > rightmost_frame) {
 276                         if (rightmost_frame < max_frames) {
 277                                 start_canvas_autoscroll (1);
 278                         }
 279                 } else if (where <= leftmost_frame) {
 280                         if (leftmost_frame > 0) {
 281                                 start_canvas_autoscroll (-1);
 282                         }
 283                 }
 284         } else {
 285                 if (where >= leftmost_frame && where < rightmost_frame) {
 286                         stop_canvas_autoscroll ();
 287                 }
 288         }
 289         //////
 290
 291         snap_to (where);
 292
 293         Cursor* cursor = 0;
 294
 295         switch (ruler_pressed_button) {
 296         case 1:
 297                 /* transport playhead */
 298                 cursor = playhead_cursor;
 299                 break;
 300
 301         case 2:
 302                 /* edit cursor */
 303                 cursor = edit_cursor;
 304                 break;
 305
 306         default:
 307                 break;
 308         }
 309
 310         if (cursor)
 311         {
 312                 cursor->set_position (where);
 313
 314                 if (cursor == edit_cursor) {
 315                         edit_cursor_clock.set (where);
 316                 }
 317
 318                 show_verbose_time_cursor (where, 10, cx, 0);
 319         }
 320
 321         return TRUE;
 322 }
 323
 324
 325 void
 326 Editor::popup_ruler_menu (nframes_t where, ItemType t)
 327 {
 328         using namespace Menu_Helpers;
 329
 330         if (editor_ruler_menu == 0) {
 331                 editor_ruler_menu = new Menu;
 332                 editor_ruler_menu->set_name ("ArdourContextMenu");
 333         }
 334
 335         // always build from scratch
 336         MenuList& ruler_items = editor_ruler_menu->items();
 337         editor_ruler_menu->set_name ("ArdourContextMenu");
 338         ruler_items.clear();
 339
 340         CheckMenuItem * mitem;
 341
 342         no_ruler_shown_update = true;
 343
 344         switch (t) {
 345         case MarkerBarItem:
 346                 ruler_items.push_back (MenuElem (_("New location marker"), bind ( mem_fun(*this, &Editor::mouse_add_new_marker), where)));
 347                 ruler_items.push_back (MenuElem (_("Clear all locations"), mem_fun(*this, &Editor::clear_markers)));
 348                 ruler_items.push_back (MenuElem (_("Unhide locations"), mem_fun(*this, &Editor::unhide_markers)));
 349                 ruler_items.push_back (SeparatorElem ());
 350                 break;
 351         case RangeMarkerBarItem:
 352                 //ruler_items.push_back (MenuElem (_("New Range")));
 353                 ruler_items.push_back (MenuElem (_("Clear all ranges"), mem_fun(*this, &Editor::clear_ranges)));
 354                 ruler_items.push_back (MenuElem (_("Unhide ranges"), mem_fun(*this, &Editor::unhide_ranges)));
 355                 ruler_items.push_back (SeparatorElem ());
 356
 357                 break;
 358         case TransportMarkerBarItem:
 359
 360                 break;
 361
 362         case TempoBarItem:
 363                 ruler_items.push_back (MenuElem (_("New Tempo"), bind ( mem_fun(*this, &Editor::mouse_add_new_tempo_event), where)));
 364                 ruler_items.push_back (MenuElem (_("Clear tempo")));
 365                 ruler_items.push_back (SeparatorElem ());
 366                 break;
 367
 368         case MeterBarItem:
 369                 ruler_items.push_back (MenuElem (_("New Meter"), bind ( mem_fun(*this, &Editor::mouse_add_new_meter_event), where)));
 370                 ruler_items.push_back (MenuElem (_("Clear meter")));
 371                 ruler_items.push_back (SeparatorElem ());
 372                 break;
 373
 374         default:
 375                 break;
 376         }
 377
 378         ruler_items.push_back (CheckMenuElem (_("Min:Secs"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_minsec)));
 379         mitem = (CheckMenuItem *) &ruler_items.back();
 380         if (ruler_shown[ruler_metric_minsec]) {
 381                 mitem->set_active(true);
 382         }
 383
 384         ruler_items.push_back (CheckMenuElem (X_("Timecode"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_smpte)));
 385         mitem = (CheckMenuItem *) &ruler_items.back();
 386         if (ruler_shown[ruler_metric_smpte]) {
 387                 mitem->set_active(true);
 388         }
 389
 390         ruler_items.push_back (CheckMenuElem (_("Frames"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_frames)));
 391         mitem = (CheckMenuItem *) &ruler_items.back();
 392         if (ruler_shown[ruler_metric_frames]) {
 393                 mitem->set_active(true);
 394         }
 395
 396         ruler_items.push_back (CheckMenuElem (_("Bars:Beats"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_bbt)));
 397         mitem = (CheckMenuItem *) &ruler_items.back();
 398         if (ruler_shown[ruler_metric_bbt]) {
 399                 mitem->set_active(true);
 400         }
 401
 402         ruler_items.push_back (SeparatorElem ());
 403
 404         ruler_items.push_back (CheckMenuElem (_("Meter"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_meter)));
 405         mitem = (CheckMenuItem *) &ruler_items.back();
 406         if (ruler_shown[ruler_time_meter]) {
 407                 mitem->set_active(true);
 408         }
 409
 410         ruler_items.push_back (CheckMenuElem (_("Tempo"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_tempo)));
 411         mitem = (CheckMenuItem *) &ruler_items.back();
 412         if (ruler_shown[ruler_time_tempo]) {
 413                 mitem->set_active(true);
 414         }
 415
 416         ruler_items.push_back (CheckMenuElem (_("Location Markers"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_marker)));
 417         mitem = (CheckMenuItem *) &ruler_items.back();
 418         if (ruler_shown[ruler_time_marker]) {
 419                 mitem->set_active(true);
 420         }
 421
 422         ruler_items.push_back (CheckMenuElem (_("Range Markers"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_range_marker)));
 423         mitem = (CheckMenuItem *) &ruler_items.back();
 424         if (ruler_shown[ruler_time_range_marker]) {
 425                 mitem->set_active(true);
 426         }
 427
 428         ruler_items.push_back (CheckMenuElem (_("Loop/Punch Ranges"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_transport_marker)));
 429         mitem = (CheckMenuItem *) &ruler_items.back();
 430         if (ruler_shown[ruler_time_transport_marker]) {
 431                 mitem->set_active(true);
 432         }
 433
 434         editor_ruler_menu->popup (1, gtk_get_current_event_time());
 435
 436         no_ruler_shown_update = false;
 437 }
 438
 439 void
 440 Editor::ruler_toggled (int ruler)
 441 {
 442         if (!session) return;
 443         if (ruler < 0 || ruler >= (int) sizeof(ruler_shown)) return;
 444
 445         if (no_ruler_shown_update) return;
 446
 447         if (ruler_shown[ruler]) {
 448                 if (visible_timebars <= 1) {
 449                         // must always have 1 visible
 450                         return;
 451                 }
 452         }
 453
 454         ruler_shown[ruler] = !ruler_shown[ruler];
 455
 456         update_ruler_visibility ();
 457
 458         // update session extra RulerVisibility
 459         store_ruler_visibility ();
 460 }
 461
 462 void
 463 Editor::store_ruler_visibility ()
 464 {
 465         XMLNode* node = new XMLNode(X_("RulerVisibility"));
 466
 467         node->add_property (X_("smpte"), ruler_shown[ruler_metric_smpte] ? "yes": "no");
 468         node->add_property (X_("bbt"), ruler_shown[ruler_metric_bbt] ? "yes": "no");
 469         node->add_property (X_("frames"), ruler_shown[ruler_metric_frames] ? "yes": "no");
 470         node->add_property (X_("minsec"), ruler_shown[ruler_metric_minsec] ? "yes": "no");
 471         node->add_property (X_("tempo"), ruler_shown[ruler_time_tempo] ? "yes": "no");
 472         node->add_property (X_("meter"), ruler_shown[ruler_time_meter] ? "yes": "no");
 473         node->add_property (X_("marker"), ruler_shown[ruler_time_marker] ? "yes": "no");
 474         node->add_property (X_("rangemarker"), ruler_shown[ruler_time_range_marker] ? "yes": "no");
 475         node->add_property (X_("transportmarker"), ruler_shown[ruler_time_transport_marker] ? "yes": "no");
 476
 477         session->add_extra_xml (*node);
 478         session->set_dirty ();
 479 }
 480
 481 void
 482 Editor::restore_ruler_visibility ()
 483 {
 484         XMLProperty* prop;
 485         XMLNode * node = session->extra_xml (X_("RulerVisibility"));
 486
 487         if (node) {
 488                 if ((prop = node->property ("smpte")) != 0) {
 489                         if (prop->value() == "yes")
 490                                 ruler_shown[ruler_metric_smpte] = true;
 491                         else
 492                                 ruler_shown[ruler_metric_smpte] = false;
 493                 }
 494                 if ((prop = node->property ("bbt")) != 0) {
 495                         if (prop->value() == "yes")
 496                                 ruler_shown[ruler_metric_bbt] = true;
 497                         else
 498                                 ruler_shown[ruler_metric_bbt] = false;
 499                 }
 500                 if ((prop = node->property ("frames")) != 0) {
 501                         if (prop->value() == "yes")
 502                                 ruler_shown[ruler_metric_frames] = true;
 503                         else
 504                                 ruler_shown[ruler_metric_frames] = false;
 505                 }
 506                 if ((prop = node->property ("minsec")) != 0) {
 507                         if (prop->value() == "yes")
 508                                 ruler_shown[ruler_metric_minsec] = true;
 509                         else
 510                                 ruler_shown[ruler_metric_minsec] = false;
 511                 }
 512                 if ((prop = node->property ("tempo")) != 0) {
 513                         if (prop->value() == "yes")
 514                                 ruler_shown[ruler_time_tempo] = true;
 515                         else
 516                                 ruler_shown[ruler_time_tempo] = false;
 517                 }
 518                 if ((prop = node->property ("meter")) != 0) {
 519                         if (prop->value() == "yes")
 520                                 ruler_shown[ruler_time_meter] = true;
 521                         else
 522                                 ruler_shown[ruler_time_meter] = false;
 523                 }
 524                 if ((prop = node->property ("marker")) != 0) {
 525                         if (prop->value() == "yes")
 526                                 ruler_shown[ruler_time_marker] = true;
 527                         else
 528                                 ruler_shown[ruler_time_marker] = false;
 529                 }
 530                 if ((prop = node->property ("rangemarker")) != 0) {
 531                         if (prop->value() == "yes")
 532                                 ruler_shown[ruler_time_range_marker] = true;
 533                         else
 534                                 ruler_shown[ruler_time_range_marker] = false;
 535                 }
 536                 if ((prop = node->property ("transportmarker")) != 0) {
 537                         if (prop->value() == "yes")
 538                                 ruler_shown[ruler_time_transport_marker] = true;
 539                         else
 540                                 ruler_shown[ruler_time_transport_marker] = false;
 541                 }
 542
 543         }
 544
 545         update_ruler_visibility ();
 546 }
 547
 548
 549 void
 550 Editor::update_ruler_visibility ()
 551 {
 552         using namespace Box_Helpers;
 553         BoxList & lab_children =  time_button_vbox.children();
 554         BoxList & ruler_children =  time_canvas_vbox.children();
 555
 556         visible_timebars = 0;
 557
 558         lab_children.clear();
 559
 560         // leave the last one (the time_canvas) intact
 561         while (ruler_children.size() > 1) {
 562                 ruler_children.pop_front();
 563         }
 564
 565         BoxList::iterator canvaspos = ruler_children.begin();
 566
 567         _smpte_ruler = gtk_custom_hruler_new ();
 568         smpte_ruler = Glib::wrap (_smpte_ruler);
 569         smpte_ruler->set_name ("SMPTERuler");
 570         smpte_ruler->set_size_request (-1, (int)timebar_height);
 571         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
 572
 573         _bbt_ruler = gtk_custom_hruler_new ();
 574         bbt_ruler = Glib::wrap (_bbt_ruler);
 575         bbt_ruler->set_name ("BBTRuler");
 576         bbt_ruler->set_size_request (-1, (int)timebar_height);
 577         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 578
 579         _frames_ruler = gtk_custom_hruler_new ();
 580         frames_ruler = Glib::wrap (_frames_ruler);
 581         frames_ruler->set_name ("FramesRuler");
 582         frames_ruler->set_size_request (-1, (int)timebar_height);
 583         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
 584
 585         _minsec_ruler = gtk_custom_hruler_new ();
 586         minsec_ruler = Glib::wrap (_minsec_ruler);
 587         minsec_ruler->set_name ("MinSecRuler");
 588         minsec_ruler->set_size_request (-1, (int)timebar_height);
 589         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
 590
 591
 592         smpte_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 593         bbt_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 594         frames_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 595         minsec_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 596
 597         smpte_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 598         bbt_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 599         frames_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 600         minsec_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 601
 602         smpte_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 603         bbt_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 604         frames_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 605         minsec_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 606
 607         smpte_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 608         bbt_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 609         frames_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 610         minsec_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 611
 612         ruler_children.insert (canvaspos, Element(*_ruler_separator, PACK_SHRINK, PACK_START));
 613
 614         if (ruler_shown[ruler_metric_minsec]) {
 615                 lab_children.push_back (Element(minsec_label, PACK_SHRINK, PACK_START));
 616                 ruler_children.insert (canvaspos, Element(*minsec_ruler, PACK_SHRINK, PACK_START));
 617                 visible_timebars++;
 618         }
 619
 620         if (ruler_shown[ruler_metric_smpte]) {
 621                 lab_children.push_back (Element(smpte_label, PACK_SHRINK, PACK_START));
 622                 ruler_children.insert (canvaspos, Element(*smpte_ruler, PACK_SHRINK, PACK_START));
 623                 visible_timebars++;
 624         }
 625
 626         if (ruler_shown[ruler_metric_frames]) {
 627                 lab_children.push_back (Element(frame_label, PACK_SHRINK, PACK_START));
 628                 ruler_children.insert (canvaspos, Element(*frames_ruler, PACK_SHRINK, PACK_START));
 629                 visible_timebars++;
 630         }
 631
 632         if (ruler_shown[ruler_metric_bbt]) {
 633                 lab_children.push_back (Element(bbt_label, PACK_SHRINK, PACK_START));
 634                 ruler_children.insert (canvaspos, Element(*bbt_ruler, PACK_SHRINK, PACK_START));
 635                 visible_timebars++;
 636         }
 637
 638         double tbpos = 1.0;
 639         double old_unit_pos ;
 640
 641         if (ruler_shown[ruler_time_meter]) {
 642                 lab_children.push_back (Element(meter_label, PACK_SHRINK, PACK_START));
 643
 644                 old_unit_pos = meter_group->property_y();
 645                 if (tbpos != old_unit_pos) {
 646                         meter_group->move ( 0.0, tbpos - old_unit_pos);
 647                 }
 648                 meter_group->show();
 649                 tbpos += timebar_height;
 650                 visible_timebars++;
 651         }
 652         else {
 653                 meter_group->hide();
 654         }
 655
 656         if (ruler_shown[ruler_time_tempo]) {
 657                 lab_children.push_back (Element(tempo_label, PACK_SHRINK, PACK_START));
 658                 old_unit_pos = tempo_group->property_y();
 659                 if (tbpos != old_unit_pos) {
 660                         tempo_group->move(0.0, tbpos - old_unit_pos);
 661                 }
 662                 tempo_group->show();
 663                 tbpos += timebar_height;
 664                 visible_timebars++;
 665         }
 666         else {
 667                 tempo_group->hide();
 668         }
 669
 670         if (ruler_shown[ruler_time_marker]) {
 671                 lab_children.push_back (Element(mark_label, PACK_SHRINK, PACK_START));
 672                 old_unit_pos = marker_group->property_y();
 673                 if (tbpos != old_unit_pos) {
 674                         marker_group->move ( 0.0, tbpos - old_unit_pos);
 675                 }
 676                 marker_group->show();
 677                 tbpos += timebar_height;
 678                 visible_timebars++;
 679         }
 680         else {
 681                 marker_group->hide();
 682         }
 683
 684         if (ruler_shown[ruler_time_range_marker]) {
 685                 lab_children.push_back (Element(range_mark_label, PACK_SHRINK, PACK_START));
 686                 old_unit_pos = range_marker_group->property_y();
 687                 if (tbpos != old_unit_pos) {
 688                         range_marker_group->move (0.0, tbpos - old_unit_pos);
 689                 }
 690                 range_marker_group->show();
 691                 tbpos += timebar_height;
 692                 visible_timebars++;
 693         }
 694         else {
 695                 range_marker_group->hide();
 696         }
 697
 698         if (ruler_shown[ruler_time_transport_marker]) {
 699                 lab_children.push_back (Element(transport_mark_label, PACK_SHRINK, PACK_START));
 700                 old_unit_pos = transport_marker_group->property_y();
 701                 if (tbpos != old_unit_pos) {
 702                         transport_marker_group->move ( 0.0, tbpos - old_unit_pos);
 703                 }
 704                 transport_marker_group->show();
 705                 tbpos += timebar_height;
 706                 visible_timebars++;
 707         }
 708         else {
 709                 transport_marker_group->hide();
 710         }
 711
 712         time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars));
 713         time_canvas_event_box.queue_resize();
 714
 715         update_fixed_rulers();
 716         //update_tempo_based_rulers();
 717         redisplay_tempo (false);
 718
 719         time_canvas_event_box.show_all();
 720         time_button_frame.show_all();
 721 }
 722
 723 void
 724 Editor::update_just_smpte ()
 725 {
 726         ENSURE_GUI_THREAD(mem_fun(*this, &Editor::update_just_smpte));
 727
 728         if (session == 0) {
 729                 return;
 730         }
 731
 732         /* XXX Note the potential loss of accuracy here as we convert from
 733            an uint32_t (or larger) to a float ... what to do ?
 734         */
 735
 736         nframes_t page = (nframes_t) floor (canvas_width * frames_per_unit);
 737         nframes_t rightmost_frame = leftmost_frame + page;
 738
 739         if (ruler_shown[ruler_metric_smpte]) {
 740                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 741                                             leftmost_frame, session->current_end_frame());
 742         }
 743 }
 744
 745 void
 746 Editor::update_fixed_rulers ()
 747 {
 748         nframes_t rightmost_frame;
 749
 750         if (session == 0) {
 751                 return;
 752         }
 753
 754         /* XXX Note the potential loss of accuracy here as we convert from
 755            an uint32_t (or larger) to a float ... what to do ?
 756         */
 757
 758         nframes_t page = (nframes_t) floor (canvas_width * frames_per_unit);
 759
 760         ruler_metrics[ruler_metric_smpte].units_per_pixel = frames_per_unit;
 761         ruler_metrics[ruler_metric_frames].units_per_pixel = frames_per_unit;
 762         ruler_metrics[ruler_metric_minsec].units_per_pixel = frames_per_unit;
 763
 764         rightmost_frame = leftmost_frame + page;
 765
 766         /* these force a redraw, which in turn will force execution of the metric callbacks
 767            to compute the relevant ticks to display.
 768         */
 769
 770         if (ruler_shown[ruler_metric_smpte]) {
 771                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 772                                             leftmost_frame, session->current_end_frame());
 773         }
 774
 775         if (ruler_shown[ruler_metric_frames]) {
 776                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_frames_ruler), leftmost_frame, rightmost_frame,
 777                                             leftmost_frame, session->current_end_frame());
 778         }
 779
 780         if (ruler_shown[ruler_metric_minsec]) {
 781                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_minsec_ruler), leftmost_frame, rightmost_frame,
 782                                             leftmost_frame, session->current_end_frame());
 783         }
 784 }
 785
 786 void
 787 Editor::update_tempo_based_rulers ()
 788 {
 789         if (session == 0) {
 790                 return;
 791         }
 792
 793         /* XXX Note the potential loss of accuracy here as we convert from
 794            an uint32_t (or larger) to a float ... what to do ?
 795         */
 796
 797         nframes_t page = (nframes_t) floor (canvas_width * frames_per_unit);
 798         ruler_metrics[ruler_metric_bbt].units_per_pixel = frames_per_unit;
 799
 800         if (ruler_shown[ruler_metric_bbt]) {
 801                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_bbt_ruler), leftmost_frame, leftmost_frame+page,
 802                                             leftmost_frame, session->current_end_frame());
 803         }
 804 }
 805
 806 /* Mark generation */
 807
 808 gint
 809 Editor::_metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 810 {
 811         return ruler_editor->metric_get_smpte (marks, lower, upper, maxchars);
 812 }
 813
 814 gint
 815 Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 816 {
 817         return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 818 }
 819
 820 gint
 821 Editor::_metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 822 {
 823         return ruler_editor->metric_get_frames (marks, lower, upper, maxchars);
 824 }
 825
 826 gint
 827 Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 828 {
 829         return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 830 }
 831
 832 gint
 833 Editor::metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 834 {
 835         nframes_t range;
 836         nframes_t pos;
 837         nframes_t spacer;
 838         nframes_t fr;
 839         SMPTE::Time smpte;
 840         gchar buf[16];
 841         gint nmarks = 0;
 842         gint n;
 843         bool show_bits = false;
 844         bool show_frames = false;
 845         bool show_seconds = false;
 846         bool show_minutes = false;
 847         bool show_hours = false;
 848         int mark_modulo;
 849
 850         if (session == 0) {
 851                 return 0;
 852         }
 853
 854         fr = session->frame_rate();
 855
 856         if (lower > (spacer = (nframes_t)(128 * Editor::get_current_zoom ()))) {
 857                 lower = lower - spacer;
 858         } else {
 859                 lower = 0;
 860         }
 861         upper = upper + spacer;
 862         range = (nframes_t) floor (upper - lower);
 863
 864         if (range < (2 * session->frames_per_smpte_frame())) { /* 0 - 2 frames */
 865                 show_bits = true;
 866                 mark_modulo = 20;
 867                 nmarks = 1 + (2 * Config->get_subframes_per_frame());
 868         } else if (range <= (fr / 4)) { /* 2 frames - 0.250 second */
 869                 show_frames = true;
 870                 mark_modulo = 1;
 871                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 872         } else if (range <= (fr / 2)) { /* 0.25-0.5 second */
 873                 show_frames = true;
 874                 mark_modulo = 2;
 875                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 876         } else if (range <= fr) { /* 0.5-1 second */
 877                 show_frames = true;
 878                 mark_modulo = 5;
 879                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 880         } else if (range <= 2 * fr) { /* 1-2 seconds */
 881                 show_frames = true;
 882                 mark_modulo = 10;
 883                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 884         } else if (range <= 8 * fr) { /* 2-8 seconds */
 885                 show_seconds = true;
 886                 mark_modulo = 1;
 887                 nmarks = 1 + (range / fr);
 888         } else if (range <= 16 * fr) { /* 8-16 seconds */
 889                 show_seconds = true;
 890                 mark_modulo = 2;
 891                 nmarks = 1 + (range / fr);
 892         } else if (range <= 30 * fr) { /* 16-30 seconds */
 893                 show_seconds = true;
 894                 mark_modulo = 5;
 895                 nmarks = 1 + (range / fr);
 896         } else if (range <= 60 * fr) { /* 30-60 seconds */
 897                 show_seconds = true;
 898                 mark_modulo = 5;
 899                 nmarks = 1 + (range / fr);
 900         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
 901                 show_seconds = true;
 902                 mark_modulo = 20;
 903                 nmarks = 1 + (range / fr);
 904         } else if (range <= 4 * 60 * fr) { /* 2-4 minutes */
 905                 show_seconds = true;
 906                 mark_modulo = 30;
 907                 nmarks = 1 + (range / fr);
 908         } else if (range <= 10 * 60 * fr) { /* 4-10 minutes */
 909                 show_minutes = true;
 910                 mark_modulo = 2;
 911                 nmarks = 1 + 10;
 912         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
 913                 show_minutes = true;
 914                 mark_modulo = 5;
 915                 nmarks = 1 + 30;
 916         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
 917                 show_minutes = true;
 918                 mark_modulo = 10;
 919                 nmarks = 1 + 60;
 920         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
 921                 show_minutes = true;
 922                 mark_modulo = 30;
 923                 nmarks = 1 + (60 * 4);
 924         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
 925                 show_hours = true;
 926                 mark_modulo = 1;
 927                 nmarks = 1 + 8;
 928         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
 929                 show_hours = true;
 930                 mark_modulo = 1;
 931                 nmarks = 1 + 24;
 932         } else {
 933
 934                 /* not possible if nframes_t is a 32 bit quantity */
 935
 936                 show_hours = true;
 937                 mark_modulo = 4;
 938                 nmarks = 1 + 24;
 939         }
 940
 941         pos = (nframes_t) floor (lower);
 942
 943         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
 944
 945         if (show_bits) {
 946                 // Find smpte time of this sample (pos) with subframe accuracy
 947                 session->sample_to_smpte(pos, smpte, true /* use_offset */, true /* use_subframes */ );
 948
 949                 for (n = 0; n < nmarks; n++) {
 950                         session->smpte_to_sample(smpte, pos, true /* use_offset */, true /* use_subframes */ );
 951                         if ((smpte.subframes % mark_modulo) == 0) {
 952                                 if (smpte.subframes == 0) {
 953                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 954                                         snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
 955                                 } else {
 956                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
 957                                         snprintf (buf, sizeof(buf), ".%02u", smpte.subframes);
 958                                 }
 959                         } else {
 960                                 snprintf (buf, sizeof(buf)," ");
 961                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
 962
 963                         }
 964                         (*marks)[n].label = g_strdup (buf);
 965                         (*marks)[n].position = pos;
 966
 967                         // Increment subframes by one
 968                         SMPTE::increment_subframes( smpte );
 969                 }
 970         } else if (show_seconds) {
 971                 // Find smpte time of this sample (pos)
 972                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
 973                 // Go to next whole second down
 974                 SMPTE::seconds_floor( smpte );
 975
 976                 for (n = 0; n < nmarks; n++) {
 977                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
 978                         if ((smpte.seconds % mark_modulo) == 0) {
 979                                 if (smpte.seconds == 0) {
 980                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 981                                         (*marks)[n].position = pos;
 982                                 } else {
 983                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
 984                                         (*marks)[n].position = pos;
 985                                 }
 986                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
 987                         } else {
 988                                 snprintf (buf, sizeof(buf)," ");
 989                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
 990                                 (*marks)[n].position = pos;
 991
 992                         }
 993                         (*marks)[n].label = g_strdup (buf);
 994                         SMPTE::increment_seconds( smpte );
 995                 }
 996         } else if (show_minutes) {
 997                 // Find smpte time of this sample (pos)
 998                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
 999                 // Go to next whole minute down
1000                 SMPTE::minutes_floor( smpte );
1001
1002                 for (n = 0; n < nmarks; n++) {
1003                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1004                         if ((smpte.minutes % mark_modulo) == 0) {
1005                                 if (smpte.minutes == 0) {
1006                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1007                                 } else {
1008                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1009                                 }
1010                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1011                         } else {
1012                                 snprintf (buf, sizeof(buf)," ");
1013                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1014
1015                         }
1016                         (*marks)[n].label = g_strdup (buf);
1017                         (*marks)[n].position = pos;
1018                         SMPTE::increment_minutes( smpte );
1019                 }
1020         } else if (show_hours) {
1021                 // Find smpte time of this sample (pos)
1022                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1023                 // Go to next whole hour down
1024                 SMPTE::hours_floor( smpte );
1025
1026                 for (n = 0; n < nmarks; n++) {
1027                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1028                         if ((smpte.hours % mark_modulo) == 0) {
1029                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1030                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1031                         } else {
1032                                 snprintf (buf, sizeof(buf)," ");
1033                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1034
1035                         }
1036                         (*marks)[n].label = g_strdup (buf);
1037                         (*marks)[n].position = pos;
1038
1039                         SMPTE::increment_hours( smpte );
1040                 }
1041         } else { // show_frames
1042                 // Find smpte time of this sample (pos)
1043                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1044                 // Go to next whole frame down
1045                 SMPTE::frames_floor( smpte );
1046
1047                 for (n = 0; n < nmarks; n++) {
1048                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1049                         if ((smpte.frames % mark_modulo) == 0)  {
1050                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1051                                 (*marks)[n].position = pos;
1052                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1053                         } else {
1054                                 snprintf (buf, sizeof(buf)," ");
1055                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1056                                 (*marks)[n].position = pos;
1057
1058                         }
1059                         (*marks)[n].label = g_strdup (buf);
1060                         SMPTE::increment( smpte );
1061                 }
1062         }
1063
1064         return nmarks;
1065 }
1066
1067
1068 gint
1069 Editor::metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1070 {
1071         if (session == 0) {
1072                 return 0;
1073         }
1074
1075         TempoMap::BBTPointList::iterator i;
1076
1077         uint32_t beats = 0;
1078         uint32_t bars = 0;
1079         uint32_t desirable_marks;
1080         uint32_t magic_accent_number = 1;
1081         gint nmarks;
1082         char buf[64];
1083         gint  n = 0;
1084         nframes_t pos;
1085         bool bar_helper_on = true;
1086
1087         BBT_Time next_beat;
1088         nframes_t next_beat_pos;
1089
1090         if ((desirable_marks = maxchars / 7) == 0) {
1091                return 0;
1092         }
1093
1094         /* align the tick marks to whatever we're snapping to... */
1095
1096         switch (snap_type) {
1097         case SnapToAThirdBeat:
1098                 bbt_beat_subdivision = 3;
1099                 break;
1100         case SnapToAQuarterBeat:
1101                 bbt_beat_subdivision = 4;
1102                 break;
1103         case SnapToAEighthBeat:
1104                 bbt_beat_subdivision = 8;
1105                 magic_accent_number = 2;
1106                 break;
1107         case SnapToASixteenthBeat:
1108                 bbt_beat_subdivision = 16;
1109                 magic_accent_number = 4;
1110                 break;
1111         case SnapToAThirtysecondBeat:
1112                 bbt_beat_subdivision = 32;
1113                 magic_accent_number = 8;
1114                 break;
1115         default:
1116                bbt_beat_subdivision = 4;
1117                 break;
1118         }
1119
1120         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1121                 return 0;
1122         }
1123
1124         i = current_bbt_points->end();
1125         i--;
1126         bars = (*i).bar - (*current_bbt_points->begin()).bar;
1127         beats = current_bbt_points->size() - bars;
1128
1129         /*Only show the bar helper if there aren't many bars on the screen */
1130         if (bars > 1) {
1131                 bar_helper_on = false;
1132         }
1133
1134         if (desirable_marks > (beats / 4)) {
1135
1136                 /* we're in beat land...*/
1137
1138                 uint32_t tick = 0;
1139                 uint32_t skip;
1140                 uint32_t t;
1141                 nframes_t frame_skip;
1142                 double frame_skip_error;
1143                 double accumulated_error;
1144                 double position_of_helper;
1145                 bool i_am_accented = false;
1146                 bool we_need_ticks = false;
1147                 bool helper_active = false;
1148
1149                 position_of_helper = lower + (30 * Editor::get_current_zoom ());
1150
1151                 if (desirable_marks >= (beats)) {
1152                         nmarks = (beats * bbt_beat_subdivision) + 1;
1153                         we_need_ticks = true;
1154                 } else {
1155                         nmarks = beats + 1;
1156                 }
1157
1158                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1159
1160                 (*marks)[0].label = g_strdup(" ");
1161                 (*marks)[0].position = lower;
1162                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1163
1164                 for (n = 1,   i = current_bbt_points->begin(); n < nmarks && i != current_bbt_points->end(); ++i) {
1165
1166                         if ((*i).frame < lower && (bar_helper_on)) {
1167                                         snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1168                                         (*marks)[0].label = g_strdup (buf);
1169                                         helper_active = true;
1170                         } else {
1171
1172                           if ((*i).type == TempoMap::Bar)  {
1173                             if (((*i).frame < position_of_helper) && helper_active) {
1174                               snprintf (buf, sizeof(buf), " ");
1175                             } else {
1176                               snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1177                             }
1178                             (*marks)[n].label = g_strdup (buf);
1179                             (*marks)[n].position = (*i).frame;
1180                             (*marks)[n].style = GtkCustomRulerMarkMajor;
1181                             n++;
1182
1183                           } else if (((*i).type == TempoMap::Beat) && ((*i).beat > 1)) {
1184                             ((((*i).frame < position_of_helper) && bar_helper_on) || !we_need_ticks) ?
1185                               snprintf (buf, sizeof(buf), " ") : snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1186                             if (((*i).beat % 2 == 1) || we_need_ticks) {
1187                               (*marks)[n].style = GtkCustomRulerMarkMinor;
1188                             } else {
1189                               (*marks)[n].style = GtkCustomRulerMarkMicro;
1190                             }
1191                             (*marks)[n].label =  g_strdup (buf);
1192                             (*marks)[n].position = (*i).frame;
1193                             n++;
1194                           }
1195
1196                         }
1197
1198
1199                         /* Add the tick marks */
1200
1201                         if (we_need_ticks && (*i).type == TempoMap::Beat) {
1202
1203                                 /* Find the next beat */
1204
1205                                 next_beat.beats = (*i).beat;
1206                                 next_beat.bars = (*i).bar;
1207
1208                                 if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1209                                   next_beat.beats += 1;
1210                                 } else {
1211                                   next_beat.bars += 1;
1212                                   next_beat.beats = 1;
1213                                 }
1214
1215                                 next_beat_pos = session->tempo_map().frame_time(next_beat);
1216
1217                                 frame_skip = (nframes_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1218                                 frame_skip_error -= frame_skip;
1219                                 skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1220
1221                                 pos = (*i).frame + frame_skip;
1222                                 accumulated_error = frame_skip_error;
1223
1224                                 tick = skip;
1225
1226                                 for (t = 0; (tick < Meter::ticks_per_beat) && (n < nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1227
1228                                         if (t % magic_accent_number == (magic_accent_number - 1)) {
1229                                                 i_am_accented = true;
1230                                         }
1231                                         if (Editor::get_current_zoom () > 32) {
1232                                                 snprintf (buf, sizeof(buf), " ");
1233                                         } else if ((Editor::get_current_zoom () > 8) && !i_am_accented) {
1234                                                 snprintf (buf, sizeof(buf), " ");
1235                                         } else  if (bar_helper_on && (pos < position_of_helper)) {
1236                                                 snprintf (buf, sizeof(buf), " ");
1237                                         } else {
1238                                                 snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1239                                         }
1240
1241                                         (*marks)[n].label = g_strdup (buf);
1242
1243                                         /* Error compensation for float to nframes_t*/
1244                                         accumulated_error += frame_skip_error;
1245                                         if (accumulated_error > 1) {
1246                                                 pos += 1;
1247                                                 accumulated_error -= 1.0f;
1248                                         }
1249
1250                                         (*marks)[n].position = pos;
1251
1252                                         if ((bbt_beat_subdivision > 4) && i_am_accented) {
1253                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1254                                         } else {
1255                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1256                                         }
1257                                         i_am_accented = false;
1258                                         n++;
1259
1260                                 }
1261                         }
1262                 }
1263                 return n; //return the actual number of marks made, since we might have skipped some fro fractional time signatures
1264
1265        } else {
1266
1267                 /* we're in bar land */
1268
1269                 if (desirable_marks < (bars / 256)) {
1270                         nmarks = 1;
1271                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1272                         snprintf (buf, sizeof(buf), "too many bars... (currently %" PRIu32 ")", bars );
1273                         (*marks)[0].style = GtkCustomRulerMarkMajor;
1274                         (*marks)[0].label = g_strdup (buf);
1275                         (*marks)[0].position = lower;
1276                 } else if (desirable_marks < (uint32_t)(nmarks = (gint) (bars / 64) + 1)) {
1277                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1278                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1279                                 if ((*i).type == TempoMap::Bar)  {
1280                                         if ((*i).bar % 64 == 1) {
1281                                                 if ((*i).bar % 256 == 1) {
1282                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1283                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1284                                                 } else {
1285                                                         snprintf (buf, sizeof(buf), " ");
1286                                                         if ((*i).bar % 256 == 129)  {
1287                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1288                                                         } else {
1289                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1290                                                         }
1291                                                 }
1292                                                 (*marks)[n].label = g_strdup (buf);
1293                                                 (*marks)[n].position = (*i).frame;
1294                                                 n++;
1295                                         }
1296                                 }
1297                         }
1298                 } else if (desirable_marks < (uint32_t)(nmarks = (bars / 16) + 1)) {
1299                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1300                         for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1301                                 if ((*i).type == TempoMap::Bar)  {
1302                                         if ((*i).bar % 16 == 1) {
1303                                                 if ((*i).bar % 64 == 1) {
1304                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1305                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1306                                                 } else {
1307                                                         snprintf (buf, sizeof(buf), " ");
1308                                                         if ((*i).bar % 64 == 33)  {
1309                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1310                                                         } else {
1311                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1312                                                         }
1313                                                 }
1314                                                 (*marks)[n].label = g_strdup (buf);
1315                                                 (*marks)[n].position = (*i).frame;
1316                                                 n++;
1317                                         }
1318                                 }
1319                         }
1320                 } else if (desirable_marks < (uint32_t)(nmarks = (bars / 4) + 1)){
1321                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1322                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; ++i) {
1323                                 if ((*i).type == TempoMap::Bar)  {
1324                                         if ((*i).bar % 4 == 1) {
1325                                                 if ((*i).bar % 16 == 1) {
1326                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1327                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1328                                                 } else {
1329                                                         snprintf (buf, sizeof(buf), " ");
1330                                                         if ((*i).bar % 16 == 9)  {
1331                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1332                                                         } else {
1333                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1334                                                         }
1335                                                 }
1336                                                 (*marks)[n].label = g_strdup (buf);
1337                                                 (*marks)[n].position = (*i).frame;
1338                                                 n++;
1339                                         }
1340                                 }
1341                         }
1342                 } else {
1343                         nmarks = bars + 1;
1344                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks );
1345                         for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1346                                 if ((*i).type == TempoMap::Bar)  {
1347                                         if ((*i).bar % 4 == 1) {
1348                                                 snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1349                                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1350                                         } else {
1351                                                 snprintf (buf, sizeof(buf), " ");
1352                                                 if ((*i).bar % 4 == 3)  {
1353                                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1354                                                 } else {
1355                                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1356                                                 }
1357                                         }
1358                                         (*marks)[n].label = g_strdup (buf);
1359                                         (*marks)[n].position = (*i).frame;
1360                                         n++;
1361                                 }
1362                         }
1363                 }
1364                 return n;
1365         }
1366 }
1367
1368 gint
1369 Editor::metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1370 {
1371         nframes_t mark_interval;
1372         nframes_t pos;
1373         nframes_t ilower = (nframes_t) floor (lower);
1374         nframes_t iupper = (nframes_t) floor (upper);
1375         gchar buf[16];
1376         gint nmarks;
1377         gint n;
1378
1379         if (session == 0) {
1380                 return 0;
1381         }
1382
1383         mark_interval = (iupper - ilower) / 5;
1384         if (mark_interval > session->frame_rate()) {
1385                 mark_interval -= mark_interval % session->frame_rate();
1386         } else {
1387                 mark_interval = session->frame_rate() / (session->frame_rate() / mark_interval ) ;
1388         }
1389         nmarks = 5;
1390         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1391         for (n = 0, pos = ilower; n < nmarks; pos += mark_interval, ++n) {
1392                 snprintf (buf, sizeof(buf), "%u", pos);
1393                 (*marks)[n].label = g_strdup (buf);
1394                 (*marks)[n].position = pos;
1395                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1396         }
1397
1398         return nmarks;
1399 }
1400
1401 static void
1402 sample_to_clock_parts ( nframes_t sample,
1403                         nframes_t sample_rate,
1404                         long *hrs_p,
1405                         long *mins_p,
1406                         long *secs_p,
1407                         long *millisecs_p)
1408
1409 {
1410         nframes_t left;
1411         long hrs;
1412         long mins;
1413         long secs;
1414         long millisecs;
1415
1416         left = sample;
1417         hrs = left / (sample_rate * 60 * 60);
1418         left -= hrs * sample_rate * 60 * 60;
1419         mins = left / (sample_rate * 60);
1420         left -= mins * sample_rate * 60;
1421         secs = left / sample_rate;
1422         left -= secs * sample_rate;
1423         millisecs = left * 1000 / sample_rate;
1424
1425         *millisecs_p = millisecs;
1426         *secs_p = secs;
1427         *mins_p = mins;
1428         *hrs_p = hrs;
1429
1430         return;
1431 }
1432
1433 gint
1434 Editor::metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1435 {
1436         nframes_t range;
1437         nframes_t fr;
1438         nframes_t mark_interval;
1439         nframes_t pos;
1440         nframes_t spacer;
1441         long hrs, mins, secs, millisecs;
1442         gchar buf[16];
1443         gint nmarks;
1444         gint n;
1445         gint mark_modulo = 100;
1446         bool show_seconds = false;
1447         bool show_minutes = false;
1448         bool show_hours = false;
1449         nframes_t ilower = (nframes_t) floor (lower);
1450         nframes_t iupper = (nframes_t) floor (upper);
1451
1452         if (session == 0) {
1453                 return 0;
1454         }
1455
1456         fr = session->frame_rate();
1457
1458         /* to prevent 'flashing' */
1459         if (lower > (spacer = (nframes_t)(128 * Editor::get_current_zoom ()))) {
1460                 lower = lower - spacer;
1461         } else {
1462                 lower = 0;
1463         }
1464         upper = upper + spacer;
1465         range = iupper - ilower;
1466
1467         if (range <  (fr / 50)) {
1468                 mark_interval =  fr / 100; /* show 1/100 seconds */
1469                 mark_modulo = 10;
1470         } else if (range <= (fr / 10)) { /* 0-0.1 second */
1471                 mark_interval = fr / 50; /* show 1/50 seconds */
1472                 mark_modulo = 20;
1473         } else if (range <= (fr / 2)) { /* 0-0.5 second */
1474                 mark_interval = fr / 20;  /* show 1/20 seconds */
1475                 mark_modulo = 100;
1476         } else if (range <= fr) { /* 0-1 second */
1477                 mark_interval = fr / 10;  /* show 1/10 seconds */
1478                 mark_modulo = 200;
1479         } else if (range <= 2 * fr) { /* 1-2 seconds */
1480                 mark_interval = fr / 2; /* show 1/2 seconds */
1481                 mark_modulo = 500;
1482         } else if (range <= 8 * fr) { /* 2-5 seconds */
1483                 mark_interval =  fr / 5; /* show 2 seconds */
1484                 mark_modulo = 1000;
1485         } else if (range <= 16 * fr) { /* 8-16 seconds */
1486                 mark_interval =  fr; /* show 1 seconds */
1487                 show_seconds = true;
1488                 mark_modulo = 5;
1489         } else if (range <= 30 * fr) { /* 10-30 seconds */
1490                 mark_interval =  fr; /* show 10 seconds */
1491                 show_seconds = true;
1492                 mark_modulo = 5;
1493         } else if (range <= 60 * fr) { /* 30-60 seconds */
1494                 mark_interval = 5 * fr; /* show 5 seconds */
1495                 show_seconds = true;
1496                 mark_modulo = 3;
1497         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1498                 mark_interval = 5 * fr; /* show 5 seconds */
1499                 show_seconds = true;
1500                 mark_modulo = 3;
1501         } else if (range <= 4 * 60 * fr) { /* 4 minutes */
1502                 mark_interval = 10 * fr; /* show 10 seconds */
1503                 show_seconds = true;
1504                 mark_modulo = 30;
1505         } else if (range <= 10 * 60 * fr) { /* 10 minutes */
1506                 mark_interval = 30 * fr; /* show 30 seconds */
1507                 show_seconds = true;
1508                 mark_modulo = 60;
1509         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1510                 mark_interval =  60 * fr; /* show 1 minute */
1511                 show_minutes = true;
1512                 mark_modulo = 5;
1513         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1514                 mark_interval = 2 * 60 * fr; /* show 2 minutes */
1515                 show_minutes = true;
1516                 mark_modulo = 10;
1517         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1518                 mark_interval = 5 * 60 * fr; /* show 10 minutes */
1519                 show_minutes = true;
1520                 mark_modulo = 30;
1521         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1522                 mark_interval = 20 * 60 * fr; /* show 20 minutes */
1523                 show_minutes = true;
1524                 mark_modulo = 60;
1525         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1526                 mark_interval =  60 * 60 * fr; /* show 60 minutes */
1527                 show_hours = true;
1528                 mark_modulo = 2;
1529         } else {
1530
1531                 /* not possible if nframes_t is a 32 bit quantity */
1532
1533                 mark_interval = 4 * 60 * 60 * fr; /* show 4 hrs */
1534         }
1535
1536         nmarks = 1 + (range / mark_interval);
1537         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1538         pos = ((ilower + (mark_interval/2))/mark_interval) * mark_interval;
1539
1540         if (show_seconds) {
1541                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1542                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1543                         if (secs % mark_modulo == 0) {
1544                                 if (secs == 0) {
1545                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1546                                 } else {
1547                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1548                                 }
1549                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1550                         } else {
1551                                 snprintf (buf, sizeof(buf), " ");
1552                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1553                         }
1554                         (*marks)[n].label = g_strdup (buf);
1555                         (*marks)[n].position = pos;
1556                 }
1557         } else if (show_minutes) {
1558                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1559                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1560                         if (mins % mark_modulo == 0) {
1561                                 if (mins == 0) {
1562                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1563                                 } else {
1564                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1565                                 }
1566                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1567                         } else {
1568                                 snprintf (buf, sizeof(buf), " ");
1569                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1570                         }
1571                         (*marks)[n].label = g_strdup (buf);
1572                         (*marks)[n].position = pos;
1573                 }
1574         } else if (show_hours) {
1575                  for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1576                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1577                         if (hrs % mark_modulo == 0) {
1578                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1579                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1580                         } else {
1581                                 snprintf (buf, sizeof(buf), " ");
1582                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1583                         }
1584                         (*marks)[n].label = g_strdup (buf);
1585                         (*marks)[n].position = pos;
1586                 }
1587         } else {
1588                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1589                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1590                         if (millisecs % mark_modulo == 0) {
1591                                 if (millisecs == 0) {
1592                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1593                                 } else {
1594                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1595                                 }
1596                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1597                         } else {
1598                                 snprintf (buf, sizeof(buf), " ");
1599                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1600                         }
1601                         (*marks)[n].label = g_strdup (buf);
1602                         (*marks)[n].position = pos;
1603                 }
1604         }
1605
1606         return nmarks;
1607 }