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     $Id$
  19 */
  20
  21 #include <cstdio> // for sprintf, grrr
  22 #include <cmath>
  23
  24 #include <string>
  25
  26 #include <ardour/tempo.h>
  27 #include <gtkmm2ext/gtk_ui.h>
  28
  29 #include "editor.h"
  30 #include "editing.h"
  31 #include "gtk-custom-hruler.h"
  32 #include "gui_thread.h"
  33
  34 #include "i18n.h"
  35
  36 using namespace sigc;
  37 using namespace ARDOUR;
  38 using namespace PBD;
  39 using namespace Gtk;
  40 using namespace Editing;
  41
  42 Editor *Editor::ruler_editor;
  43
  44 /* the order here must match the "metric" enums in editor.h */
  45
  46 GtkCustomMetric Editor::ruler_metrics[4] = {
  47         {1, Editor::_metric_get_smpte },
  48         {1, Editor::_metric_get_bbt },
  49         {1, Editor::_metric_get_frames },
  50         {1, Editor::_metric_get_minsec }
  51 };
  52
  53 void
  54 Editor::initialize_rulers ()
  55 {
  56         ruler_editor = this;
  57         ruler_grabbed_widget = 0;
  58
  59         _smpte_ruler = gtk_custom_hruler_new ();
  60         smpte_ruler = Glib::wrap (_smpte_ruler);
  61         smpte_ruler->set_name ("SMPTERuler");
  62         smpte_ruler->set_size_request (-1, (int)timebar_height);
  63         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
  64         ruler_shown[ruler_metric_smpte] = true;
  65
  66         _bbt_ruler = gtk_custom_hruler_new ();
  67         bbt_ruler = Glib::wrap (_bbt_ruler);
  68         bbt_ruler->set_name ("BBTRuler");
  69         bbt_ruler->set_size_request (-1, (int)timebar_height);
  70         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
  71         ruler_shown[ruler_metric_bbt] = true;
  72
  73         _frames_ruler = gtk_custom_hruler_new ();
  74         frames_ruler = Glib::wrap (_frames_ruler);
  75         frames_ruler->set_name ("FramesRuler");
  76         frames_ruler->set_size_request (-1, (int)timebar_height);
  77         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
  78
  79         _minsec_ruler = gtk_custom_hruler_new ();
  80         minsec_ruler = Glib::wrap (_minsec_ruler);
  81         minsec_ruler->set_name ("MinSecRuler");
  82         minsec_ruler->set_size_request (-1, (int)timebar_height);
  83         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
  84
  85         ruler_shown[ruler_time_meter] = true;
  86         ruler_shown[ruler_time_tempo] = true;
  87         ruler_shown[ruler_time_marker] = true;
  88         ruler_shown[ruler_time_range_marker] = true;
  89         ruler_shown[ruler_time_transport_marker] = true;
  90         ruler_shown[ruler_metric_frames] = false;
  91         ruler_shown[ruler_metric_minsec] = false;
  92
  93         smpte_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
  94         bbt_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
  95         frames_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
  96         minsec_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
  97
  98         smpte_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
  99         bbt_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 100         frames_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 101         minsec_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 102
 103         smpte_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 104         bbt_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 105         frames_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 106         minsec_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 107
 108         smpte_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 109         bbt_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 110         frames_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 111         minsec_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 112
 113         visible_timebars = 7; /* 4 here, 3 in time_canvas */
 114         ruler_pressed_button = 0;
 115 }
 116
 117
 118 gint
 119 Editor::ruler_button_press (GdkEventButton* ev)
 120 {
 121         if (session == 0) {
 122                 return FALSE;
 123         }
 124
 125         ruler_pressed_button = ev->button;
 126
 127         // jlc: grab ev->window ?
 128         //Gtk::Main::grab_add (*minsec_ruler);
 129         Widget * grab_widget = 0;
 130
 131         if (smpte_ruler->is_realized() && ev->window == smpte_ruler->get_window()->gobj()) grab_widget = smpte_ruler;
 132         else if (bbt_ruler->is_realized() && ev->window == bbt_ruler->get_window()->gobj()) grab_widget = bbt_ruler;
 133         else if (frames_ruler->is_realized() && ev->window == frames_ruler->get_window()->gobj()) grab_widget = frames_ruler;
 134         else if (minsec_ruler->is_realized() && ev->window == minsec_ruler->get_window()->gobj()) grab_widget = minsec_ruler;
 135
 136         if (grab_widget) {
 137                 grab_widget->add_modal_grab ();
 138                 ruler_grabbed_widget = grab_widget;
 139         }
 140
 141         gint x,y;
 142         Gdk::ModifierType state;
 143
 144         /* need to use the correct x,y, the event lies */
 145         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 146
 147         nframes_t where = leftmost_frame + pixel_to_frame (x);
 148
 149         switch (ev->button) {
 150         case 1:
 151                 /* transport playhead */
 152                 snap_to (where);
 153                 session->request_locate (where);
 154                 break;
 155
 156         case 2:
 157                 /* edit cursor */
 158                 if (snap_type != Editing::SnapToEditCursor) {
 159                         snap_to (where);
 160                 }
 161                 edit_cursor->set_position (where);
 162                 edit_cursor_clock.set (where);
 163                 break;
 164
 165         default:
 166                 break;
 167         }
 168
 169         return TRUE;
 170 }
 171
 172 gint
 173 Editor::ruler_button_release (GdkEventButton* ev)
 174 {
 175         gint x,y;
 176         Gdk::ModifierType state;
 177
 178         /* need to use the correct x,y, the event lies */
 179         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 180
 181         ruler_pressed_button = 0;
 182
 183         if (session == 0) {
 184                 return FALSE;
 185         }
 186
 187         hide_verbose_canvas_cursor();
 188         stop_canvas_autoscroll();
 189
 190         nframes_t where = leftmost_frame + pixel_to_frame (x);
 191
 192         switch (ev->button) {
 193         case 1:
 194                 /* transport playhead */
 195                 snap_to (where);
 196                 session->request_locate (where);
 197                 break;
 198
 199         case 2:
 200                 /* edit cursor */
 201                 if (snap_type != Editing::SnapToEditCursor) {
 202                         snap_to (where);
 203                 }
 204                 edit_cursor->set_position (where);
 205                 edit_cursor_clock.set (where);
 206                 break;
 207
 208         case 3:
 209                 /* popup menu */
 210                 snap_to (where);
 211                 popup_ruler_menu (where);
 212
 213                 break;
 214         default:
 215                 break;
 216         }
 217
 218
 219         if (ruler_grabbed_widget) {
 220                 ruler_grabbed_widget->remove_modal_grab();
 221                 ruler_grabbed_widget = 0;
 222         }
 223
 224         return TRUE;
 225 }
 226
 227 gint
 228 Editor::ruler_label_button_release (GdkEventButton* ev)
 229 {
 230         if (ev->button == 3)
 231         {
 232                 popup_ruler_menu();
 233         }
 234
 235         return TRUE;
 236 }
 237
 238
 239 gint
 240 Editor::ruler_mouse_motion (GdkEventMotion* ev)
 241 {
 242         if (session == 0 || !ruler_pressed_button) {
 243                 return FALSE;
 244         }
 245
 246         double wcx=0,wcy=0;
 247         double cx=0,cy=0;
 248
 249         gint x,y;
 250         Gdk::ModifierType state;
 251
 252         /* need to use the correct x,y, the event lies */
 253         time_canvas_event_box.get_window()->get_pointer (x, y, state);
 254
 255
 256         track_canvas.c2w (x, y, wcx, wcy);
 257         track_canvas.w2c (wcx, wcy, cx, cy);
 258
 259         nframes_t where = leftmost_frame + pixel_to_frame (x);
 260
 261         /// ripped from maybe_autoscroll
 262         nframes_t one_page = (nframes_t) rint (canvas_width * frames_per_unit);
 263         nframes_t rightmost_frame = leftmost_frame + one_page;
 264
 265         jack_nframes_t frame = pixel_to_frame (cx);
 266
 267         if (autoscroll_timeout_tag < 0) {
 268                 if (frame > rightmost_frame) {
 269                         if (rightmost_frame < max_frames) {
 270                                 start_canvas_autoscroll (1);
 271                         }
 272                 } else if (frame < leftmost_frame) {
 273                         if (leftmost_frame > 0) {
 274                                 start_canvas_autoscroll (-1);
 275                         }
 276                 }
 277         } else {
 278                 if (frame >= leftmost_frame && frame < rightmost_frame) {
 279                         stop_canvas_autoscroll ();
 280                 }
 281         }
 282         //////
 283
 284         snap_to (where);
 285
 286         Cursor* cursor = 0;
 287
 288         switch (ruler_pressed_button) {
 289         case 1:
 290                 /* transport playhead */
 291                 cursor = playhead_cursor;
 292                 break;
 293
 294         case 2:
 295                 /* edit cursor */
 296                 cursor = edit_cursor;
 297                 break;
 298
 299         default:
 300                 break;
 301         }
 302
 303         if (cursor)
 304         {
 305                 cursor->set_position (where);
 306
 307                 if (cursor == edit_cursor) {
 308                         edit_cursor_clock.set (where);
 309                 }
 310
 311                 show_verbose_time_cursor (where, 10, cx, 0);
 312         }
 313
 314         return TRUE;
 315 }
 316
 317
 318 void
 319 Editor::popup_ruler_menu (nframes_t where, ItemType t)
 320 {
 321         using namespace Menu_Helpers;
 322
 323         if (editor_ruler_menu == 0) {
 324                 editor_ruler_menu = new Menu;
 325                 editor_ruler_menu->set_name ("ArdourContextMenu");
 326         }
 327
 328         // always build from scratch
 329         MenuList& ruler_items = editor_ruler_menu->items();
 330         editor_ruler_menu->set_name ("ArdourContextMenu");
 331         ruler_items.clear();
 332
 333         CheckMenuItem * mitem;
 334
 335         no_ruler_shown_update = true;
 336
 337         switch (t) {
 338         case MarkerBarItem:
 339                 ruler_items.push_back (MenuElem (_("New location marker"), bind ( mem_fun(*this, &Editor::mouse_add_new_marker), where)));
 340                 ruler_items.push_back (MenuElem (_("Clear all locations"), mem_fun(*this, &Editor::clear_markers)));
 341                 ruler_items.push_back (SeparatorElem ());
 342                 break;
 343         case RangeMarkerBarItem:
 344                 //ruler_items.push_back (MenuElem (_("New Range")));
 345                 ruler_items.push_back (MenuElem (_("Clear all ranges"), mem_fun(*this, &Editor::clear_ranges)));
 346                 ruler_items.push_back (SeparatorElem ());
 347
 348                 break;
 349         case TransportMarkerBarItem:
 350
 351                 break;
 352
 353         case TempoBarItem:
 354                 ruler_items.push_back (MenuElem (_("New Tempo"), bind ( mem_fun(*this, &Editor::mouse_add_new_tempo_event), where)));
 355                 ruler_items.push_back (MenuElem (_("Clear tempo")));
 356                 ruler_items.push_back (SeparatorElem ());
 357                 break;
 358
 359         case MeterBarItem:
 360                 ruler_items.push_back (MenuElem (_("New Meter"), bind ( mem_fun(*this, &Editor::mouse_add_new_meter_event), where)));
 361                 ruler_items.push_back (MenuElem (_("Clear meter")));
 362                 ruler_items.push_back (SeparatorElem ());
 363                 break;
 364
 365         default:
 366                 break;
 367         }
 368
 369         ruler_items.push_back (CheckMenuElem (_("Min:Secs"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_minsec)));
 370         mitem = (CheckMenuItem *) &ruler_items.back();
 371         if (ruler_shown[ruler_metric_minsec]) {
 372                 mitem->set_active(true);
 373         }
 374
 375         ruler_items.push_back (CheckMenuElem (X_("Timecode"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_smpte)));
 376         mitem = (CheckMenuItem *) &ruler_items.back();
 377         if (ruler_shown[ruler_metric_smpte]) {
 378                 mitem->set_active(true);
 379         }
 380
 381         ruler_items.push_back (CheckMenuElem (_("Frames"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_frames)));
 382         mitem = (CheckMenuItem *) &ruler_items.back();
 383         if (ruler_shown[ruler_metric_frames]) {
 384                 mitem->set_active(true);
 385         }
 386
 387         ruler_items.push_back (CheckMenuElem (_("Bars:Beats"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_metric_bbt)));
 388         mitem = (CheckMenuItem *) &ruler_items.back();
 389         if (ruler_shown[ruler_metric_bbt]) {
 390                 mitem->set_active(true);
 391         }
 392
 393         ruler_items.push_back (SeparatorElem ());
 394
 395         ruler_items.push_back (CheckMenuElem (_("Meter"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_meter)));
 396         mitem = (CheckMenuItem *) &ruler_items.back();
 397         if (ruler_shown[ruler_time_meter]) {
 398                 mitem->set_active(true);
 399         }
 400
 401         ruler_items.push_back (CheckMenuElem (_("Tempo"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_tempo)));
 402         mitem = (CheckMenuItem *) &ruler_items.back();
 403         if (ruler_shown[ruler_time_tempo]) {
 404                 mitem->set_active(true);
 405         }
 406
 407         ruler_items.push_back (CheckMenuElem (_("Location Markers"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_marker)));
 408         mitem = (CheckMenuItem *) &ruler_items.back();
 409         if (ruler_shown[ruler_time_marker]) {
 410                 mitem->set_active(true);
 411         }
 412
 413         ruler_items.push_back (CheckMenuElem (_("Range Markers"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_range_marker)));
 414         mitem = (CheckMenuItem *) &ruler_items.back();
 415         if (ruler_shown[ruler_time_range_marker]) {
 416                 mitem->set_active(true);
 417         }
 418
 419         ruler_items.push_back (CheckMenuElem (_("Loop/Punch Ranges"), bind (mem_fun(*this, &Editor::ruler_toggled), (int)ruler_time_transport_marker)));
 420         mitem = (CheckMenuItem *) &ruler_items.back();
 421         if (ruler_shown[ruler_time_transport_marker]) {
 422                 mitem->set_active(true);
 423         }
 424
 425         editor_ruler_menu->popup (1, 0);
 426
 427         no_ruler_shown_update = false;
 428 }
 429
 430 void
 431 Editor::ruler_toggled (int ruler)
 432 {
 433         if (!session) return;
 434         if (ruler < 0 || ruler >= (int) sizeof(ruler_shown)) return;
 435
 436         if (no_ruler_shown_update) return;
 437
 438         if (ruler_shown[ruler]) {
 439                 if (visible_timebars <= 1) {
 440                         // must always have 1 visible
 441                         return;
 442                 }
 443         }
 444
 445         ruler_shown[ruler] = !ruler_shown[ruler];
 446
 447         update_ruler_visibility ();
 448
 449         // update session extra RulerVisibility
 450         store_ruler_visibility ();
 451 }
 452
 453 void
 454 Editor::store_ruler_visibility ()
 455 {
 456         XMLNode* node = new XMLNode(X_("RulerVisibility"));
 457
 458         node->add_property (X_("smpte"), ruler_shown[ruler_metric_smpte] ? "yes": "no");
 459         node->add_property (X_("bbt"), ruler_shown[ruler_metric_bbt] ? "yes": "no");
 460         node->add_property (X_("frames"), ruler_shown[ruler_metric_frames] ? "yes": "no");
 461         node->add_property (X_("minsec"), ruler_shown[ruler_metric_minsec] ? "yes": "no");
 462         node->add_property (X_("tempo"), ruler_shown[ruler_time_tempo] ? "yes": "no");
 463         node->add_property (X_("meter"), ruler_shown[ruler_time_meter] ? "yes": "no");
 464         node->add_property (X_("marker"), ruler_shown[ruler_time_marker] ? "yes": "no");
 465         node->add_property (X_("rangemarker"), ruler_shown[ruler_time_range_marker] ? "yes": "no");
 466         node->add_property (X_("transportmarker"), ruler_shown[ruler_time_transport_marker] ? "yes": "no");
 467
 468         session->add_extra_xml (*node);
 469         session->set_dirty ();
 470 }
 471
 472 void
 473 Editor::restore_ruler_visibility ()
 474 {
 475         XMLProperty* prop;
 476         XMLNode * node = session->extra_xml (X_("RulerVisibility"));
 477
 478         if (node) {
 479                 if ((prop = node->property ("smpte")) != 0) {
 480                         if (prop->value() == "yes")
 481                                 ruler_shown[ruler_metric_smpte] = true;
 482                         else
 483                                 ruler_shown[ruler_metric_smpte] = false;
 484                 }
 485                 if ((prop = node->property ("bbt")) != 0) {
 486                         if (prop->value() == "yes")
 487                                 ruler_shown[ruler_metric_bbt] = true;
 488                         else
 489                                 ruler_shown[ruler_metric_bbt] = false;
 490                 }
 491                 if ((prop = node->property ("frames")) != 0) {
 492                         if (prop->value() == "yes")
 493                                 ruler_shown[ruler_metric_frames] = true;
 494                         else
 495                                 ruler_shown[ruler_metric_frames] = false;
 496                 }
 497                 if ((prop = node->property ("minsec")) != 0) {
 498                         if (prop->value() == "yes")
 499                                 ruler_shown[ruler_metric_minsec] = true;
 500                         else
 501                                 ruler_shown[ruler_metric_minsec] = false;
 502                 }
 503                 if ((prop = node->property ("tempo")) != 0) {
 504                         if (prop->value() == "yes")
 505                                 ruler_shown[ruler_time_tempo] = true;
 506                         else
 507                                 ruler_shown[ruler_time_tempo] = false;
 508                 }
 509                 if ((prop = node->property ("meter")) != 0) {
 510                         if (prop->value() == "yes")
 511                                 ruler_shown[ruler_time_meter] = true;
 512                         else
 513                                 ruler_shown[ruler_time_meter] = false;
 514                 }
 515                 if ((prop = node->property ("marker")) != 0) {
 516                         if (prop->value() == "yes")
 517                                 ruler_shown[ruler_time_marker] = true;
 518                         else
 519                                 ruler_shown[ruler_time_marker] = false;
 520                 }
 521                 if ((prop = node->property ("rangemarker")) != 0) {
 522                         if (prop->value() == "yes")
 523                                 ruler_shown[ruler_time_range_marker] = true;
 524                         else
 525                                 ruler_shown[ruler_time_range_marker] = false;
 526                 }
 527                 if ((prop = node->property ("transportmarker")) != 0) {
 528                         if (prop->value() == "yes")
 529                                 ruler_shown[ruler_time_transport_marker] = true;
 530                         else
 531                                 ruler_shown[ruler_time_transport_marker] = false;
 532                 }
 533
 534         }
 535
 536         update_ruler_visibility ();
 537 }
 538
 539
 540 void
 541 Editor::update_ruler_visibility ()
 542 {
 543         using namespace Box_Helpers;
 544         BoxList & lab_children =  time_button_vbox.children();
 545         BoxList & ruler_children =  time_canvas_vbox.children();
 546
 547         visible_timebars = 0;
 548
 549         lab_children.clear();
 550
 551         // leave the last one (the time_canvas) intact
 552         while (ruler_children.size() > 1) {
 553                 ruler_children.pop_front();
 554         }
 555
 556         BoxList::iterator canvaspos = ruler_children.begin();
 557
 558         _smpte_ruler = gtk_custom_hruler_new ();
 559         smpte_ruler = Glib::wrap (_smpte_ruler);
 560         smpte_ruler->set_name ("SMPTERuler");
 561         smpte_ruler->set_size_request (-1, (int)timebar_height);
 562         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
 563
 564         _bbt_ruler = gtk_custom_hruler_new ();
 565         bbt_ruler = Glib::wrap (_bbt_ruler);
 566         bbt_ruler->set_name ("BBTRuler");
 567         bbt_ruler->set_size_request (-1, (int)timebar_height);
 568         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 569
 570         _frames_ruler = gtk_custom_hruler_new ();
 571         frames_ruler = Glib::wrap (_frames_ruler);
 572         frames_ruler->set_name ("FramesRuler");
 573         frames_ruler->set_size_request (-1, (int)timebar_height);
 574         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
 575
 576         _minsec_ruler = gtk_custom_hruler_new ();
 577         minsec_ruler = Glib::wrap (_minsec_ruler);
 578         minsec_ruler->set_name ("MinSecRuler");
 579         minsec_ruler->set_size_request (-1, (int)timebar_height);
 580         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
 581
 582
 583         smpte_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 584         bbt_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 585         frames_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 586         minsec_ruler->set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 587
 588         smpte_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 589         bbt_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 590         frames_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 591         minsec_ruler->signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_button_release));
 592
 593         smpte_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 594         bbt_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 595         frames_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 596         minsec_ruler->signal_button_press_event().connect (mem_fun(*this, &Editor::ruler_button_press));
 597
 598         smpte_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 599         bbt_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 600         frames_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 601         minsec_ruler->signal_motion_notify_event().connect (mem_fun(*this, &Editor::ruler_mouse_motion));
 602
 603
 604         if (ruler_shown[ruler_metric_minsec]) {
 605                 lab_children.push_back (Element(minsec_label, PACK_SHRINK, PACK_START));
 606                 ruler_children.insert (canvaspos, Element(*minsec_ruler, PACK_SHRINK, PACK_START));
 607                 visible_timebars++;
 608         }
 609
 610         if (ruler_shown[ruler_metric_smpte]) {
 611                 lab_children.push_back (Element(smpte_label, PACK_SHRINK, PACK_START));
 612                 ruler_children.insert (canvaspos, Element(*smpte_ruler, PACK_SHRINK, PACK_START));
 613                 visible_timebars++;
 614         }
 615
 616         if (ruler_shown[ruler_metric_frames]) {
 617                 lab_children.push_back (Element(frame_label, PACK_SHRINK, PACK_START));
 618                 ruler_children.insert (canvaspos, Element(*frames_ruler, PACK_SHRINK, PACK_START));
 619                 visible_timebars++;
 620         }
 621
 622         if (ruler_shown[ruler_metric_bbt]) {
 623                 lab_children.push_back (Element(bbt_label, PACK_SHRINK, PACK_START));
 624                 ruler_children.insert (canvaspos, Element(*bbt_ruler, PACK_SHRINK, PACK_START));
 625                 visible_timebars++;
 626         }
 627
 628         double tbpos = 0.0;
 629         double old_unit_pos ;
 630
 631         if (ruler_shown[ruler_time_meter]) {
 632                 lab_children.push_back (Element(meter_label, PACK_SHRINK, PACK_START));
 633
 634                 old_unit_pos = meter_group->property_y();
 635                 if (tbpos != old_unit_pos) {
 636                         meter_group->move ( 0.0, tbpos - old_unit_pos);
 637                 }
 638                 meter_group->show();
 639                 tbpos += timebar_height;
 640                 visible_timebars++;
 641         }
 642         else {
 643                 meter_group->hide();
 644         }
 645
 646         if (ruler_shown[ruler_time_tempo]) {
 647                 lab_children.push_back (Element(tempo_label, PACK_SHRINK, PACK_START));
 648                 old_unit_pos = tempo_group->property_y();
 649                 if (tbpos != old_unit_pos) {
 650                         tempo_group->move(0.0, tbpos - old_unit_pos);
 651                 }
 652                 tempo_group->show();
 653                 tbpos += timebar_height;
 654                 visible_timebars++;
 655         }
 656         else {
 657                 tempo_group->hide();
 658         }
 659
 660         if (ruler_shown[ruler_time_marker]) {
 661                 lab_children.push_back (Element(mark_label, PACK_SHRINK, PACK_START));
 662                 old_unit_pos = marker_group->property_y();
 663                 if (tbpos != old_unit_pos) {
 664                         marker_group->move ( 0.0, tbpos - old_unit_pos);
 665                 }
 666                 marker_group->show();
 667                 tbpos += timebar_height;
 668                 visible_timebars++;
 669         }
 670         else {
 671                 marker_group->hide();
 672         }
 673
 674         if (ruler_shown[ruler_time_range_marker]) {
 675                 lab_children.push_back (Element(range_mark_label, PACK_SHRINK, PACK_START));
 676                 old_unit_pos = range_marker_group->property_y();
 677                 if (tbpos != old_unit_pos) {
 678                         range_marker_group->move (0.0, tbpos - old_unit_pos);
 679                 }
 680                 range_marker_group->show();
 681                 tbpos += timebar_height;
 682                 visible_timebars++;
 683         }
 684         else {
 685                 range_marker_group->hide();
 686         }
 687
 688         if (ruler_shown[ruler_time_transport_marker]) {
 689                 lab_children.push_back (Element(transport_mark_label, PACK_SHRINK, PACK_START));
 690                 old_unit_pos = transport_marker_group->property_y();
 691                 if (tbpos != old_unit_pos) {
 692                         transport_marker_group->move ( 0.0, tbpos - old_unit_pos);
 693                 }
 694                 transport_marker_group->show();
 695                 tbpos += timebar_height;
 696                 visible_timebars++;
 697         }
 698         else {
 699                 transport_marker_group->hide();
 700         }
 701
 702         time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars));
 703         time_canvas_event_box.queue_resize();
 704
 705         update_fixed_rulers();
 706         //update_tempo_based_rulers();
 707         tempo_map_changed(Change (0));
 708
 709         time_canvas_event_box.show_all();
 710         time_button_event_box.show_all();
 711 }
 712
 713 void
 714 Editor::update_just_smpte ()
 715 {
 716         ENSURE_GUI_THREAD(mem_fun(*this, &Editor::update_just_smpte));
 717
 718         if (session == 0) {
 719                 return;
 720         }
 721
 722         /* XXX Note the potential loss of accuracy here as we convert from
 723            an uint32_t (or larger) to a float ... what to do ?
 724         */
 725
 726         nframes_t page = (nframes_t) floor (canvas_width * frames_per_unit);
 727         nframes_t rightmost_frame = leftmost_frame + page;
 728
 729         if (ruler_shown[ruler_metric_smpte]) {
 730                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 731                                             leftmost_frame, session->current_end_frame());
 732         }
 733 }
 734
 735 void
 736 Editor::update_fixed_rulers ()
 737 {
 738         nframes_t rightmost_frame;
 739
 740         if (session == 0) {
 741                 return;
 742         }
 743
 744         /* XXX Note the potential loss of accuracy here as we convert from
 745            an uint32_t (or larger) to a float ... what to do ?
 746         */
 747
 748         nframes_t page = (nframes_t) floor (canvas_width * frames_per_unit);
 749
 750         ruler_metrics[ruler_metric_smpte].units_per_pixel = frames_per_unit;
 751         ruler_metrics[ruler_metric_frames].units_per_pixel = frames_per_unit;
 752         ruler_metrics[ruler_metric_minsec].units_per_pixel = frames_per_unit;
 753
 754         rightmost_frame = leftmost_frame + page;
 755
 756         /* these force a redraw, which in turn will force execution of the metric callbacks
 757            to compute the relevant ticks to display.
 758         */
 759
 760         if (ruler_shown[ruler_metric_smpte]) {
 761                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 762                                             leftmost_frame, session->current_end_frame());
 763         }
 764
 765         if (ruler_shown[ruler_metric_frames]) {
 766                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_frames_ruler), leftmost_frame, rightmost_frame,
 767                                             leftmost_frame, session->current_end_frame());
 768         }
 769
 770         if (ruler_shown[ruler_metric_minsec]) {
 771                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_minsec_ruler), leftmost_frame, rightmost_frame,
 772                                             leftmost_frame, session->current_end_frame());
 773         }
 774 }
 775
 776 void
 777 Editor::update_tempo_based_rulers ()
 778 {
 779         if (session == 0) {
 780                 return;
 781         }
 782
 783         /* XXX Note the potential loss of accuracy here as we convert from
 784            an uint32_t (or larger) to a float ... what to do ?
 785         */
 786
 787         nframes_t page = (nframes_t) floor (canvas_width * frames_per_unit);
 788         ruler_metrics[ruler_metric_bbt].units_per_pixel = frames_per_unit;
 789
 790         if (ruler_shown[ruler_metric_bbt]) {
 791                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_bbt_ruler), leftmost_frame, leftmost_frame+page,
 792                                             leftmost_frame, session->current_end_frame());
 793         }
 794 }
 795
 796 /* Mark generation */
 797
 798 gint
 799 Editor::_metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 800 {
 801         return ruler_editor->metric_get_smpte (marks, lower, upper, maxchars);
 802 }
 803
 804 gint
 805 Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 806 {
 807         return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 808 }
 809
 810 gint
 811 Editor::_metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 812 {
 813         return ruler_editor->metric_get_frames (marks, lower, upper, maxchars);
 814 }
 815
 816 gint
 817 Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 818 {
 819         return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 820 }
 821
 822 gint
 823 Editor::metric_get_smpte (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
 824 {
 825         nframes_t range;
 826         nframes_t pos;
 827         nframes_t spacer;
 828         nframes_t fr;
 829         SMPTE::Time smpte;
 830         gchar buf[16];
 831         gint nmarks = 0;
 832         gint n;
 833         bool show_bits = false;
 834         bool show_frames = false;
 835         bool show_seconds = false;
 836         bool show_minutes = false;
 837         bool show_hours = false;
 838         int mark_modulo;
 839
 840         if (session == 0) {
 841                 return 0;
 842         }
 843
 844         fr = session->frame_rate();
 845
 846         if (lower > (spacer = (nframes_t)(128 * Editor::get_current_zoom ()))) {
 847                 lower = lower - spacer;
 848         } else {
 849                 lower = 0;
 850         }
 851         upper = upper + spacer;
 852         range = (nframes_t) floor (upper - lower);
 853
 854         if (range < (2 * session->frames_per_smpte_frame())) { /* 0 - 2 frames */
 855                 show_bits = true;
 856                 mark_modulo = 20;
 857                 nmarks = 1 + 160;
 858         } else if (range <= (fr / 4)) { /* 2 frames - 0.250 second */
 859                 show_frames = true;
 860                 mark_modulo = 1;
 861                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 862         } else if (range <= (fr / 2)) { /* 0.25-0.5 second */
 863                 show_frames = true;
 864                 mark_modulo = 2;
 865                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 866         } else if (range <= fr) { /* 0.5-1 second */
 867                 show_frames = true;
 868                 mark_modulo = 5;
 869                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 870         } else if (range <= 2 * fr) { /* 1-2 seconds */
 871                 show_frames = true;
 872                 mark_modulo = 10;
 873                 nmarks = 1 + (range / (nframes_t)session->frames_per_smpte_frame());
 874         } else if (range <= 8 * fr) { /* 2-8 seconds */
 875                 show_seconds = true;
 876                 mark_modulo = 1;
 877                 nmarks = 1 + (range / fr);
 878         } else if (range <= 16 * fr) { /* 8-16 seconds */
 879                 show_seconds = true;
 880                 mark_modulo = 2;
 881                 nmarks = 1 + (range / fr);
 882         } else if (range <= 30 * fr) { /* 16-30 seconds */
 883                 show_seconds = true;
 884                 mark_modulo = 5;
 885                 nmarks = 1 + (range / fr);
 886         } else if (range <= 60 * fr) { /* 30-60 seconds */
 887                 show_seconds = true;
 888                 mark_modulo = 5;
 889                 nmarks = 1 + (range / fr);
 890         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
 891                 show_seconds = true;
 892                 mark_modulo = 20;
 893                 nmarks = 1 + (range / fr);
 894         } else if (range <= 4 * 60 * fr) { /* 2-4 minutes */
 895                 show_seconds = true;
 896                 mark_modulo = 30;
 897                 nmarks = 1 + (range / fr);
 898         } else if (range <= 10 * 60 * fr) { /* 4-10 minutes */
 899                 show_minutes = true;
 900                 mark_modulo = 2;
 901                 nmarks = 1 + 10;
 902         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
 903                 show_minutes = true;
 904                 mark_modulo = 5;
 905                 nmarks = 1 + 30;
 906         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
 907                 show_minutes = true;
 908                 mark_modulo = 10;
 909                 nmarks = 1 + 60;
 910         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
 911                 show_minutes = true;
 912                 mark_modulo = 30;
 913                 nmarks = 1 + (60 * 4);
 914         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
 915                 show_hours = true;
 916                 mark_modulo = 1;
 917                 nmarks = 1 + 8;
 918         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
 919                 show_hours = true;
 920                 mark_modulo = 1;
 921                 nmarks = 1 + 24;
 922         } else {
 923
 924                 /* not possible if nframes_t is a 32 bit quantity */
 925
 926                 show_hours = true;
 927                 mark_modulo = 4;
 928                 nmarks = 1 + 24;
 929         }
 930
 931         pos = (nframes_t) floor (lower);
 932
 933         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
 934
 935         if (show_bits) {
 936                 // Find smpte time of this sample (pos) with subframe accuracy
 937                 session->sample_to_smpte(pos, smpte, true /* use_offset */, true /* use_subframes */ );
 938
 939                 for (n = 0; n < nmarks; n++) {
 940                         session->smpte_to_sample(smpte, pos, true /* use_offset */, true /* use_subframes */ );
 941                         if ((smpte.subframes % mark_modulo) == 0) {
 942                                 if (smpte.subframes == 0) {
 943                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 944                                         snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
 945                                 } else {
 946                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
 947                                         snprintf (buf, sizeof(buf), ".%02u", smpte.subframes);
 948                                 }
 949                         } else {
 950                                 snprintf (buf, sizeof(buf)," ");
 951                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
 952
 953                         }
 954                         (*marks)[n].label = g_strdup (buf);
 955                         (*marks)[n].position = pos;
 956
 957                         // Increment subframes by one
 958                         SMPTE::increment_subframes( smpte );
 959                 }
 960         } else if (show_seconds) {
 961                 // Find smpte time of this sample (pos)
 962                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
 963                 // Go to next whole second down
 964                 SMPTE::seconds_floor( smpte );
 965
 966                 for (n = 0; n < nmarks; n++) {
 967                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
 968                         if ((smpte.seconds % mark_modulo) == 0) {
 969                                 if (smpte.seconds == 0) {
 970                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 971                                         (*marks)[n].position = pos;
 972                                 } else {
 973                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
 974                                         (*marks)[n].position = pos;
 975                                 }
 976                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
 977                         } else {
 978                                 snprintf (buf, sizeof(buf)," ");
 979                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
 980                                 (*marks)[n].position = pos;
 981
 982                         }
 983                         (*marks)[n].label = g_strdup (buf);
 984                         SMPTE::increment_seconds( smpte );
 985                 }
 986         } else if (show_minutes) {
 987                 // Find smpte time of this sample (pos)
 988                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
 989                 // Go to next whole minute down
 990                 SMPTE::minutes_floor( smpte );
 991
 992                 for (n = 0; n < nmarks; n++) {
 993                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
 994                         if ((smpte.minutes % mark_modulo) == 0) {
 995                                 if (smpte.minutes == 0) {
 996                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 997                                 } else {
 998                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
 999                                 }
1000                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1001                         } else {
1002                                 snprintf (buf, sizeof(buf)," ");
1003                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1004
1005                         }
1006                         (*marks)[n].label = g_strdup (buf);
1007                         (*marks)[n].position = pos;
1008                         SMPTE::increment_minutes( smpte );
1009                 }
1010         } else if (show_hours) {
1011                 // Find smpte time of this sample (pos)
1012                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1013                 // Go to next whole hour down
1014                 SMPTE::hours_floor( smpte );
1015
1016                 for (n = 0; n < nmarks; n++) {
1017                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1018                         if ((smpte.hours % mark_modulo) == 0) {
1019                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1020                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1021                         } else {
1022                                 snprintf (buf, sizeof(buf)," ");
1023                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1024
1025                         }
1026                         (*marks)[n].label = g_strdup (buf);
1027                         (*marks)[n].position = pos;
1028
1029                         SMPTE::increment_hours( smpte );
1030                 }
1031         } else { // show_frames
1032                 // Find smpte time of this sample (pos)
1033                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1034                 // Go to next whole frame down
1035                 SMPTE::frames_floor( smpte );
1036
1037                 for (n = 0; n < nmarks; n++) {
1038                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1039                         if ((smpte.frames % mark_modulo) == 0)  {
1040                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1041                                 (*marks)[n].position = pos;
1042                                 snprintf (buf, sizeof(buf), "%s%02u:%02u:%02u:%02u", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1043                         } else {
1044                                 snprintf (buf, sizeof(buf)," ");
1045                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1046                                 (*marks)[n].position = pos;
1047
1048                         }
1049                         (*marks)[n].label = g_strdup (buf);
1050                         SMPTE::increment( smpte );
1051                 }
1052         }
1053
1054         return nmarks;
1055 }
1056
1057
1058 gint
1059 Editor::metric_get_bbt (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1060 {
1061         if (session == 0) {
1062                 return 0;
1063         }
1064
1065         TempoMap::BBTPointList::iterator i;
1066
1067         uint32_t beats = 0;
1068         uint32_t bars = 0;
1069         uint32_t desirable_marks;
1070         uint32_t magic_accent_number = 1;
1071         gint nmarks;
1072         char buf[64];
1073         gint  n = 0;
1074         nframes_t pos;
1075         bool bar_helper_on = true;
1076
1077         BBT_Time next_beat;
1078         nframes_t next_beat_pos;
1079
1080         if ((desirable_marks = maxchars / 7) == 0) {
1081                return 0;
1082         }
1083
1084         /* align the tick marks to whatever we're snapping to... */
1085
1086         switch (snap_type) {
1087         case SnapToAThirdBeat:
1088                 bbt_beat_subdivision = 3;
1089                 break;
1090         case SnapToAQuarterBeat:
1091                 bbt_beat_subdivision = 4;
1092                 break;
1093         case SnapToAEighthBeat:
1094                 bbt_beat_subdivision = 8;
1095                 magic_accent_number = 2;
1096                 break;
1097         case SnapToASixteenthBeat:
1098                 bbt_beat_subdivision = 16;
1099                 magic_accent_number = 4;
1100                 break;
1101         case SnapToAThirtysecondBeat:
1102                 bbt_beat_subdivision = 32;
1103                 magic_accent_number = 8;
1104                 break;
1105         default:
1106                bbt_beat_subdivision = 4;
1107                 break;
1108         }
1109
1110         if (current_bbt_points == 0 || current_bbt_points->empty()) {
1111                 return 0;
1112         }
1113
1114         i = current_bbt_points->end();
1115         i--;
1116         bars = (*i).bar - (*current_bbt_points->begin()).bar;
1117         beats = current_bbt_points->size() - bars;
1118
1119         /*Only show the bar helper if there aren't many bars on the screen */
1120         if (bars > 1) {
1121                 bar_helper_on = false;
1122         }
1123
1124         if (desirable_marks > (beats / 4)) {
1125
1126                 /* we're in beat land...*/
1127
1128                 uint32_t tick = 0;
1129                 uint32_t skip;
1130                 uint32_t t;
1131                 nframes_t frame_skip;
1132                 double frame_skip_error;
1133                 double accumulated_error;
1134                 double position_of_helper;
1135                 bool i_am_accented = false;
1136                 bool we_need_ticks = false;
1137                 bool helper_active = false;
1138
1139                 position_of_helper = lower + (30 * Editor::get_current_zoom ());
1140
1141                 if (desirable_marks >= (beats)) {
1142                         nmarks = (beats * bbt_beat_subdivision) + 1;
1143                         we_need_ticks = true;
1144                 } else {
1145                         nmarks = beats + 1;
1146                 }
1147
1148                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1149
1150                 (*marks)[0].label = g_strdup(" ");
1151                 (*marks)[0].position = lower;
1152                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1153
1154                 for (n = 1,   i = current_bbt_points->begin(); n < nmarks && i != current_bbt_points->end(); ++i) {
1155
1156                         if ((*i).frame < lower && (bar_helper_on)) {
1157                                         snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1158                                         (*marks)[0].label = g_strdup (buf);
1159                                         helper_active = true;
1160                         } else {
1161
1162                           if ((*i).type == TempoMap::Bar)  {
1163                             if (((*i).frame < position_of_helper) && helper_active) {
1164                               snprintf (buf, sizeof(buf), " ");
1165                             } else {
1166                               snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1167                             }
1168                             (*marks)[n].label = g_strdup (buf);
1169                             (*marks)[n].position = (*i).frame;
1170                             (*marks)[n].style = GtkCustomRulerMarkMajor;
1171                             n++;
1172
1173                           } else if (((*i).type == TempoMap::Beat) && ((*i).beat > 1)) {
1174                             ((((*i).frame < position_of_helper) && bar_helper_on) || !we_need_ticks) ?
1175                               snprintf (buf, sizeof(buf), " ") : snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1176                             if (((*i).beat % 2 == 1) || we_need_ticks) {
1177                               (*marks)[n].style = GtkCustomRulerMarkMinor;
1178                             } else {
1179                               (*marks)[n].style = GtkCustomRulerMarkMicro;
1180                             }
1181                             (*marks)[n].label =  g_strdup (buf);
1182                             (*marks)[n].position = (*i).frame;
1183                             n++;
1184                           }
1185
1186                         }
1187
1188
1189                         /* Add the tick marks */
1190
1191                         if (we_need_ticks && (*i).type == TempoMap::Beat) {
1192
1193                                 /* Find the next beat */
1194
1195                                 next_beat.beats = (*i).beat;
1196                                 next_beat.bars = (*i).bar;
1197
1198                                 if ((*i).meter->beats_per_bar() > (next_beat.beats + 1)) {
1199                                   next_beat.beats += 1;
1200                                 } else {
1201                                   next_beat.bars += 1;
1202                                   next_beat.beats = 1;
1203                                 }
1204
1205                                 next_beat_pos = session->tempo_map().frame_time(next_beat);
1206
1207                                 frame_skip = (nframes_t) floor (frame_skip_error = (session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1208                                 frame_skip_error -= frame_skip;
1209                                 skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1210
1211                                 pos = (*i).frame + frame_skip;
1212                                 accumulated_error = frame_skip_error;
1213
1214                                 tick = skip;
1215
1216                                 for (t = 0; (tick < Meter::ticks_per_beat) && (n < nmarks) && (pos < next_beat_pos) ; pos += frame_skip, tick += skip, ++t) {
1217
1218                                         if (t % magic_accent_number == (magic_accent_number - 1)) {
1219                                                 i_am_accented = true;
1220                                         }
1221                                         if (Editor::get_current_zoom () > 32) {
1222                                                 snprintf (buf, sizeof(buf), " ");
1223                                         } else if ((Editor::get_current_zoom () > 8) && !i_am_accented) {
1224                                                 snprintf (buf, sizeof(buf), " ");
1225                                         } else  if (bar_helper_on && (pos < position_of_helper)) {
1226                                                 snprintf (buf, sizeof(buf), " ");
1227                                         } else {
1228                                                 snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1229                                         }
1230
1231                                         (*marks)[n].label = g_strdup (buf);
1232
1233                                         /* Error compensation for float to nframes_t*/
1234                                         accumulated_error += frame_skip_error;
1235                                         if (accumulated_error > 1) {
1236                                                 pos += 1;
1237                                                 accumulated_error -= 1.0f;
1238                                         }
1239
1240                                         (*marks)[n].position = pos;
1241
1242                                         if ((bbt_beat_subdivision > 4) && i_am_accented) {
1243                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1244                                         } else {
1245                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1246                                         }
1247                                         i_am_accented = false;
1248                                         n++;
1249
1250                                 }
1251                         }
1252                 }
1253                 return n; //return the actual number of marks made, since we might have skipped some fro fractional time signatures
1254
1255        } else {
1256
1257                 /* we're in bar land */
1258
1259                 if (desirable_marks < (bars / 256)) {
1260                         nmarks = 1;
1261                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1262                         snprintf (buf, sizeof(buf), "too many bars... (currently %" PRIu32 ")", bars );
1263                         (*marks)[0].style = GtkCustomRulerMarkMajor;
1264                         (*marks)[0].label = g_strdup (buf);
1265                         (*marks)[0].position = lower;
1266                 } else if (desirable_marks < (uint32_t)(nmarks = (gint) (bars / 64) + 1)) {
1267                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1268                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1269                                 if ((*i).type == TempoMap::Bar)  {
1270                                         if ((*i).bar % 64 == 1) {
1271                                                 if ((*i).bar % 256 == 1) {
1272                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1273                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1274                                                 } else {
1275                                                         snprintf (buf, sizeof(buf), " ");
1276                                                         if ((*i).bar % 256 == 129)  {
1277                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1278                                                         } else {
1279                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1280                                                         }
1281                                                 }
1282                                                 (*marks)[n].label = g_strdup (buf);
1283                                                 (*marks)[n].position = (*i).frame;
1284                                                 n++;
1285                                         }
1286                                 }
1287                         }
1288                 } else if (desirable_marks < (uint32_t)(nmarks = (bars / 16) + 1)) {
1289                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1290                         for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1291                                 if ((*i).type == TempoMap::Bar)  {
1292                                         if ((*i).bar % 16 == 1) {
1293                                                 if ((*i).bar % 64 == 1) {
1294                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1295                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1296                                                 } else {
1297                                                         snprintf (buf, sizeof(buf), " ");
1298                                                         if ((*i).bar % 64 == 33)  {
1299                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1300                                                         } else {
1301                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1302                                                         }
1303                                                 }
1304                                                 (*marks)[n].label = g_strdup (buf);
1305                                                 (*marks)[n].position = (*i).frame;
1306                                                 n++;
1307                                         }
1308                                 }
1309                         }
1310                 } else if (desirable_marks < (uint32_t)(nmarks = (bars / 4) + 1)){
1311                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1312                         for (n = 0,   i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; ++i) {
1313                                 if ((*i).type == TempoMap::Bar)  {
1314                                         if ((*i).bar % 4 == 1) {
1315                                                 if ((*i).bar % 16 == 1) {
1316                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1317                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1318                                                 } else {
1319                                                         snprintf (buf, sizeof(buf), " ");
1320                                                         if ((*i).bar % 16 == 9)  {
1321                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1322                                                         } else {
1323                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1324                                                         }
1325                                                 }
1326                                                 (*marks)[n].label = g_strdup (buf);
1327                                                 (*marks)[n].position = (*i).frame;
1328                                                 n++;
1329                                         }
1330                                 }
1331                         }
1332                 } else {
1333                         nmarks = bars + 1;
1334                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks );
1335                         for (n = 0,  i = current_bbt_points->begin(); i != current_bbt_points->end() && n < nmarks; i++) {
1336                                 if ((*i).type == TempoMap::Bar)  {
1337                                         if ((*i).bar % 4 == 1) {
1338                                                 snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1339                                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1340                                         } else {
1341                                                 snprintf (buf, sizeof(buf), " ");
1342                                                 if ((*i).bar % 4 == 3)  {
1343                                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1344                                                 } else {
1345                                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1346                                                 }
1347                                         }
1348                                         (*marks)[n].label = g_strdup (buf);
1349                                         (*marks)[n].position = (*i).frame;
1350                                         n++;
1351                                 }
1352                         }
1353                 }
1354                 return n;
1355         }
1356 }
1357
1358 gint
1359 Editor::metric_get_frames (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1360 {
1361         nframes_t mark_interval;
1362         nframes_t pos;
1363         nframes_t ilower = (nframes_t) floor (lower);
1364         nframes_t iupper = (nframes_t) floor (upper);
1365         gchar buf[16];
1366         gint nmarks;
1367         gint n;
1368
1369         if (session == 0) {
1370                 return 0;
1371         }
1372
1373         mark_interval = (iupper - ilower) / 5;
1374         if (mark_interval > session->frame_rate()) {
1375                 mark_interval -= mark_interval % session->frame_rate();
1376         } else {
1377                 mark_interval = session->frame_rate() / (session->frame_rate() / mark_interval ) ;
1378         }
1379         nmarks = 5;
1380         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1381         for (n = 0, pos = ilower; n < nmarks; pos += mark_interval, ++n) {
1382                 snprintf (buf, sizeof(buf), "%u", pos);
1383                 (*marks)[n].label = g_strdup (buf);
1384                 (*marks)[n].position = pos;
1385                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1386         }
1387
1388         return nmarks;
1389 }
1390
1391 static void
1392 sample_to_clock_parts ( nframes_t sample,
1393                         nframes_t sample_rate,
1394                         long *hrs_p,
1395                         long *mins_p,
1396                         long *secs_p,
1397                         long *millisecs_p)
1398
1399 {
1400         nframes_t left;
1401         long hrs;
1402         long mins;
1403         long secs;
1404         long millisecs;
1405
1406         left = sample;
1407         hrs = left / (sample_rate * 60 * 60);
1408         left -= hrs * sample_rate * 60 * 60;
1409         mins = left / (sample_rate * 60);
1410         left -= mins * sample_rate * 60;
1411         secs = left / sample_rate;
1412         left -= secs * sample_rate;
1413         millisecs = left * 1000 / sample_rate;
1414
1415         *millisecs_p = millisecs;
1416         *secs_p = secs;
1417         *mins_p = mins;
1418         *hrs_p = hrs;
1419
1420         return;
1421 }
1422
1423 gint
1424 Editor::metric_get_minsec (GtkCustomRulerMark **marks, gdouble lower, gdouble upper, gint maxchars)
1425 {
1426         nframes_t range;
1427         nframes_t fr;
1428         nframes_t mark_interval;
1429         nframes_t pos;
1430         nframes_t spacer;
1431         long hrs, mins, secs, millisecs;
1432         gchar buf[16];
1433         gint nmarks;
1434         gint n;
1435         gint mark_modulo = 100;
1436         bool show_seconds = false;
1437         bool show_minutes = false;
1438         bool show_hours = false;
1439         nframes_t ilower = (nframes_t) floor (lower);
1440         nframes_t iupper = (nframes_t) floor (upper);
1441
1442         if (session == 0) {
1443                 return 0;
1444         }
1445
1446         fr = session->frame_rate();
1447
1448         /* to prevent 'flashing' */
1449         if (lower > (spacer = (nframes_t)(128 * Editor::get_current_zoom ()))) {
1450                 lower = lower - spacer;
1451         } else {
1452                 lower = 0;
1453         }
1454         upper = upper + spacer;
1455         range = iupper - ilower;
1456
1457         if (range <  (fr / 50)) {
1458                 mark_interval =  fr / 100; /* show 1/100 seconds */
1459                 mark_modulo = 10;
1460         } else if (range <= (fr / 10)) { /* 0-0.1 second */
1461                 mark_interval = fr / 50; /* show 1/50 seconds */
1462                 mark_modulo = 20;
1463         } else if (range <= (fr / 2)) { /* 0-0.5 second */
1464                 mark_interval = fr / 20;  /* show 1/20 seconds */
1465                 mark_modulo = 100;
1466         } else if (range <= fr) { /* 0-1 second */
1467                 mark_interval = fr / 10;  /* show 1/10 seconds */
1468                 mark_modulo = 200;
1469         } else if (range <= 2 * fr) { /* 1-2 seconds */
1470                 mark_interval = fr / 2; /* show 1/2 seconds */
1471                 mark_modulo = 500;
1472         } else if (range <= 8 * fr) { /* 2-5 seconds */
1473                 mark_interval =  fr / 5; /* show 2 seconds */
1474                 mark_modulo = 1000;
1475         } else if (range <= 16 * fr) { /* 8-16 seconds */
1476                 mark_interval =  fr; /* show 1 seconds */
1477                 show_seconds = true;
1478                 mark_modulo = 5;
1479         } else if (range <= 30 * fr) { /* 10-30 seconds */
1480                 mark_interval =  fr; /* show 10 seconds */
1481                 show_seconds = true;
1482                 mark_modulo = 5;
1483         } else if (range <= 60 * fr) { /* 30-60 seconds */
1484                 mark_interval = 5 * fr; /* show 5 seconds */
1485                 show_seconds = true;
1486                 mark_modulo = 3;
1487         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1488                 mark_interval = 5 * fr; /* show 5 seconds */
1489                 show_seconds = true;
1490                 mark_modulo = 3;
1491         } else if (range <= 4 * 60 * fr) { /* 4 minutes */
1492                 mark_interval = 10 * fr; /* show 10 seconds */
1493                 show_seconds = true;
1494                 mark_modulo = 30;
1495         } else if (range <= 10 * 60 * fr) { /* 10 minutes */
1496                 mark_interval = 30 * fr; /* show 30 seconds */
1497                 show_seconds = true;
1498                 mark_modulo = 60;
1499         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1500                 mark_interval =  60 * fr; /* show 1 minute */
1501                 show_minutes = true;
1502                 mark_modulo = 5;
1503         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1504                 mark_interval = 2 * 60 * fr; /* show 2 minutes */
1505                 show_minutes = true;
1506                 mark_modulo = 10;
1507         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1508                 mark_interval = 5 * 60 * fr; /* show 10 minutes */
1509                 show_minutes = true;
1510                 mark_modulo = 30;
1511         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1512                 mark_interval = 20 * 60 * fr; /* show 20 minutes */
1513                 show_minutes = true;
1514                 mark_modulo = 60;
1515         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1516                 mark_interval =  60 * 60 * fr; /* show 60 minutes */
1517                 show_hours = true;
1518                 mark_modulo = 2;
1519         } else {
1520
1521                 /* not possible if nframes_t is a 32 bit quantity */
1522
1523                 mark_interval = 4 * 60 * 60 * fr; /* show 4 hrs */
1524         }
1525
1526         nmarks = 1 + (range / mark_interval);
1527         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1528         pos = ((ilower + (mark_interval/2))/mark_interval) * mark_interval;
1529
1530         if (show_seconds) {
1531                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1532                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1533                         if (secs % mark_modulo == 0) {
1534                                 if (secs == 0) {
1535                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1536                                 } else {
1537                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1538                                 }
1539                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1540                         } else {
1541                                 snprintf (buf, sizeof(buf), " ");
1542                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1543                         }
1544                         (*marks)[n].label = g_strdup (buf);
1545                         (*marks)[n].position = pos;
1546                 }
1547         } else if (show_minutes) {
1548                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1549                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1550                         if (mins % mark_modulo == 0) {
1551                                 if (mins == 0) {
1552                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1553                                 } else {
1554                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1555                                 }
1556                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1557                         } else {
1558                                 snprintf (buf, sizeof(buf), " ");
1559                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1560                         }
1561                         (*marks)[n].label = g_strdup (buf);
1562                         (*marks)[n].position = pos;
1563                 }
1564         } else if (show_hours) {
1565                  for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1566                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1567                         if (hrs % mark_modulo == 0) {
1568                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1569                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1570                         } else {
1571                                 snprintf (buf, sizeof(buf), " ");
1572                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1573                         }
1574                         (*marks)[n].label = g_strdup (buf);
1575                         (*marks)[n].position = pos;
1576                 }
1577         } else {
1578                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1579                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1580                         if (millisecs % mark_modulo == 0) {
1581                                 if (millisecs == 0) {
1582                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1583                                 } else {
1584                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1585                                 }
1586                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1587                         } else {
1588                                 snprintf (buf, sizeof(buf), " ");
1589                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1590                         }
1591                         (*marks)[n].label = g_strdup (buf);
1592                         (*marks)[n].position = pos;
1593                 }
1594         }
1595
1596         return nmarks;
1597 }