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