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 <gtkmmext/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 Gtk;
  39 using namespace Editing;
  40
  41 Editor *Editor::ruler_editor;
  42
  43 /* the order here must match the "metric" enums in editor.h */
  44
  45 GtkCustomMetric Editor::ruler_metrics[4] = {
  46         {1, Editor::_metric_get_smpte },
  47         {1, Editor::_metric_get_bbt },
  48         {1, Editor::_metric_get_frames },
  49         {1, Editor::_metric_get_minsec }
  50 };
  51
  52 void
  53 Editor::initialize_rulers ()
  54 {
  55         ruler_editor = this;
  56         ruler_grabbed_widget = 0;
  57
  58         _smpte_ruler = gtk_custom_hruler_new ();
  59         smpte_ruler = wrap (_smpte_ruler);
  60         smpte_ruler->set_name ("SMPTERuler");
  61         smpte_ruler->set_usize (-1, (int)timebar_height);
  62         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
  63         ruler_shown[ruler_metric_smpte] = true;
  64
  65         _bbt_ruler = gtk_custom_hruler_new ();
  66         bbt_ruler = wrap (_bbt_ruler);
  67         bbt_ruler->set_name ("BBTRuler");
  68         bbt_ruler->set_usize (-1, (int)timebar_height);
  69         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
  70         ruler_shown[ruler_metric_bbt] = true;
  71
  72         _frames_ruler = gtk_custom_hruler_new ();
  73         frames_ruler = wrap (_frames_ruler);
  74         frames_ruler->set_name ("FramesRuler");
  75         frames_ruler->set_usize (-1, (int)timebar_height);
  76         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
  77
  78         _minsec_ruler = gtk_custom_hruler_new ();
  79         minsec_ruler = wrap (_minsec_ruler);
  80         minsec_ruler->set_name ("MinSecRuler");
  81         minsec_ruler->set_usize (-1, (int)timebar_height);
  82         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
  83
  84         ruler_shown[ruler_time_meter] = true;
  85         ruler_shown[ruler_time_tempo] = true;
  86         ruler_shown[ruler_time_marker] = true;
  87         ruler_shown[ruler_time_range_marker] = true;
  88         ruler_shown[ruler_time_transport_marker] = true;
  89         ruler_shown[ruler_metric_frames] = false;
  90         ruler_shown[ruler_metric_minsec] = false;
  91
  92         smpte_ruler->set_events (GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK);
  93         bbt_ruler->set_events (GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK);
  94         frames_ruler->set_events (GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK);
  95         minsec_ruler->set_events (GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK);
  96
  97         smpte_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
  98         bbt_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
  99         frames_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
 100         minsec_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
 101
 102         smpte_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
 103         bbt_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
 104         frames_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
 105         minsec_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
 106
 107         smpte_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
 108         bbt_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
 109         frames_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
 110         minsec_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
 111
 112         visible_timebars = 7; /* 4 here, 3 in time_canvas */
 113         ruler_pressed_button = 0;
 114 }
 115
 116
 117 gint
 118 Editor::ruler_button_press (GdkEventButton* ev)
 119 {
 120         if (session == 0) {
 121                 return FALSE;
 122         }
 123
 124         ruler_pressed_button = ev->button;
 125
 126         // jlc: grab ev->window ?
 127         //Gtk::Main::grab_add (*minsec_ruler);
 128         Widget * grab_widget = 0;
 129
 130         if (smpte_ruler->is_realized() && ev->window == smpte_ruler->get_window()) grab_widget = smpte_ruler;
 131         else if (bbt_ruler->is_realized() && ev->window == bbt_ruler->get_window()) grab_widget = bbt_ruler;
 132         else if (frames_ruler->is_realized() && ev->window == frames_ruler->get_window()) grab_widget = frames_ruler;
 133         else if (minsec_ruler->is_realized() && ev->window == minsec_ruler->get_window()) grab_widget = minsec_ruler;
 134
 135         if (grab_widget) {
 136                 Gtk::Main::grab_add (*grab_widget);
 137                 ruler_grabbed_widget = grab_widget;
 138         }
 139
 140         return TRUE;
 141 }
 142
 143 gint
 144 Editor::ruler_button_release (GdkEventButton* ev)
 145 {
 146         gint x,y;
 147         GdkModifierType state;
 148
 149         /* need to use the correct x,y, the event lies */
 150         time_canvas_event_box.get_window().get_pointer (x, y, state);
 151
 152
 153         ruler_pressed_button = 0;
 154
 155         if (session == 0) {
 156                 return FALSE;
 157         }
 158
 159         hide_verbose_canvas_cursor();
 160         stop_canvas_autoscroll();
 161
 162         jack_nframes_t where = leftmost_frame + pixel_to_frame (x);
 163
 164         switch (ev->button) {
 165         case 1:
 166                 /* transport playhead */
 167                 snap_to (where);
 168                 session->request_locate (where);
 169                 break;
 170
 171         case 2:
 172                 /* edit cursor */
 173                 if (snap_type != Editing::SnapToEditCursor) {
 174                         snap_to (where);
 175                 }
 176                 edit_cursor->set_position (where);
 177                 edit_cursor_clock.set (where);
 178                 break;
 179
 180         case 3:
 181                 /* popup menu */
 182                 snap_to (where);
 183                 popup_ruler_menu (where);
 184
 185                 break;
 186         default:
 187                 break;
 188         }
 189
 190
 191         if (ruler_grabbed_widget) {
 192                 Gtk::Main::grab_remove (*ruler_grabbed_widget);
 193                 ruler_grabbed_widget = 0;
 194         }
 195
 196         return TRUE;
 197 }
 198
 199 gint
 200 Editor::ruler_label_button_release (GdkEventButton* ev)
 201 {
 202         if (ev->button == 3)
 203         {
 204                 popup_ruler_menu();
 205         }
 206
 207         return TRUE;
 208 }
 209
 210
 211 gint
 212 Editor::ruler_mouse_motion (GdkEventMotion* ev)
 213 {
 214         if (session == 0 || !ruler_pressed_button) {
 215                 return FALSE;
 216         }
 217
 218         double wcx=0,wcy=0;
 219         double cx=0,cy=0;
 220
 221         gint x,y;
 222         GdkModifierType state;
 223
 224         /* need to use the correct x,y, the event lies */
 225         time_canvas_event_box.get_window().get_pointer (x, y, state);
 226
 227
 228         gtk_canvas_window_to_world (GTK_CANVAS(track_gtk_canvas), x, y, &wcx, &wcy);
 229         gtk_canvas_w2c_d (GTK_CANVAS(track_gtk_canvas), wcx, wcy, &cx, &cy);
 230
 231         jack_nframes_t where = leftmost_frame + pixel_to_frame (x);
 232
 233         /// ripped from maybe_autoscroll
 234         jack_nframes_t one_page = (jack_nframes_t) rint (canvas_width * frames_per_unit);
 235         jack_nframes_t rightmost_frame = leftmost_frame + one_page;
 236
 237         jack_nframes_t frame = pixel_to_frame (cx);
 238
 239         if (autoscroll_timeout_tag < 0) {
 240                 if (frame > rightmost_frame) {
 241                         if (rightmost_frame < max_frames) {
 242                                 start_canvas_autoscroll (1);
 243                         }
 244                 } else if (frame < leftmost_frame) {
 245                         if (leftmost_frame > 0) {
 246                                 start_canvas_autoscroll (-1);
 247                         }
 248                 }
 249         } else {
 250                 if (frame >= leftmost_frame && frame < rightmost_frame) {
 251                         stop_canvas_autoscroll ();
 252                 }
 253         }
 254         //////
 255
 256         snap_to (where);
 257
 258         Cursor* cursor = 0;
 259
 260         switch (ruler_pressed_button) {
 261         case 1:
 262                 /* transport playhead */
 263                 cursor = playhead_cursor;
 264                 break;
 265
 266         case 2:
 267                 /* edit cursor */
 268                 cursor = edit_cursor;
 269                 break;
 270
 271         default:
 272                 break;
 273         }
 274
 275         if (cursor)
 276         {
 277                 cursor->set_position (where);
 278
 279                 if (cursor == edit_cursor) {
 280                         edit_cursor_clock.set (where);
 281                 }
 282
 283                 show_verbose_time_cursor (where, 10, cx, 0);
 284         }
 285
 286         return TRUE;
 287 }
 288
 289
 290 void
 291 Editor::popup_ruler_menu (jack_nframes_t where, ItemType t)
 292 {
 293         using namespace Menu_Helpers;
 294
 295         if (editor_ruler_menu == 0) {
 296                 editor_ruler_menu = new Menu;
 297                 editor_ruler_menu->set_name ("ArdourContextMenu");
 298         }
 299
 300         // always build from scratch
 301         MenuList& ruler_items = editor_ruler_menu->items();
 302         editor_ruler_menu->set_name ("ArdourContextMenu");
 303         ruler_items.clear();
 304
 305         CheckMenuItem * mitem;
 306
 307         no_ruler_shown_update = true;
 308
 309         switch (t) {
 310         case MarkerBarItem:
 311                 ruler_items.push_back (MenuElem (_("New location marker"), bind ( slot (*this, &Editor::mouse_add_new_marker), where)));
 312                 ruler_items.push_back (MenuElem (_("Clear all locations"), slot (*this, &Editor::clear_markers)));
 313                 ruler_items.push_back (SeparatorElem ());
 314                 break;
 315         case RangeMarkerBarItem:
 316                 //ruler_items.push_back (MenuElem (_("New Range")));
 317                 ruler_items.push_back (MenuElem (_("Clear all ranges"), slot (*this, &Editor::clear_ranges)));
 318                 ruler_items.push_back (SeparatorElem ());
 319
 320                 break;
 321         case TransportMarkerBarItem:
 322
 323                 break;
 324
 325         case TempoBarItem:
 326                 ruler_items.push_back (MenuElem (_("New Tempo"), bind ( slot (*this, &Editor::mouse_add_new_tempo_event), where)));
 327                 ruler_items.push_back (MenuElem (_("Clear tempo")));
 328                 ruler_items.push_back (SeparatorElem ());
 329                 break;
 330
 331         case MeterBarItem:
 332                 ruler_items.push_back (MenuElem (_("New Meter"), bind ( slot (*this, &Editor::mouse_add_new_meter_event), where)));
 333                 ruler_items.push_back (MenuElem (_("Clear meter")));
 334                 ruler_items.push_back (SeparatorElem ());
 335                 break;
 336
 337         default:
 338                 break;
 339         }
 340
 341         ruler_items.push_back (CheckMenuElem (_("Min:Secs"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_metric_minsec)));
 342         mitem = (CheckMenuItem *) ruler_items.back();
 343         if (ruler_shown[ruler_metric_minsec]) {
 344                 mitem->set_active(true);
 345         }
 346
 347         ruler_items.push_back (CheckMenuElem (X_("SMPTE"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_metric_smpte)));
 348         mitem = (CheckMenuItem *) ruler_items.back();
 349         if (ruler_shown[ruler_metric_smpte]) {
 350                 mitem->set_active(true);
 351         }
 352
 353         ruler_items.push_back (CheckMenuElem (_("Frames"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_metric_frames)));
 354         mitem = (CheckMenuItem *) ruler_items.back();
 355         if (ruler_shown[ruler_metric_frames]) {
 356                 mitem->set_active(true);
 357         }
 358
 359         ruler_items.push_back (CheckMenuElem (_("Bars:Beats"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_metric_bbt)));
 360         mitem = (CheckMenuItem *) ruler_items.back();
 361         if (ruler_shown[ruler_metric_bbt]) {
 362                 mitem->set_active(true);
 363         }
 364
 365         ruler_items.push_back (SeparatorElem ());
 366
 367         ruler_items.push_back (CheckMenuElem (_("Meter"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_time_meter)));
 368         mitem = (CheckMenuItem *) ruler_items.back();
 369         if (ruler_shown[ruler_time_meter]) {
 370                 mitem->set_active(true);
 371         }
 372
 373         ruler_items.push_back (CheckMenuElem (_("Tempo"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_time_tempo)));
 374         mitem = (CheckMenuItem *) ruler_items.back();
 375         if (ruler_shown[ruler_time_tempo]) {
 376                 mitem->set_active(true);
 377         }
 378
 379         ruler_items.push_back (CheckMenuElem (_("Location Markers"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_time_marker)));
 380         mitem = (CheckMenuItem *) ruler_items.back();
 381         if (ruler_shown[ruler_time_marker]) {
 382                 mitem->set_active(true);
 383         }
 384
 385         ruler_items.push_back (CheckMenuElem (_("Range Markers"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_time_range_marker)));
 386         mitem = (CheckMenuItem *) ruler_items.back();
 387         if (ruler_shown[ruler_time_range_marker]) {
 388                 mitem->set_active(true);
 389         }
 390
 391         ruler_items.push_back (CheckMenuElem (_("Loop/Punch Ranges"), bind (slot (*this, &Editor::ruler_toggled), (int)ruler_time_transport_marker)));
 392         mitem = (CheckMenuItem *) ruler_items.back();
 393         if (ruler_shown[ruler_time_transport_marker]) {
 394                 mitem->set_active(true);
 395         }
 396
 397         editor_ruler_menu->popup (1, 0);
 398
 399         no_ruler_shown_update = false;
 400 }
 401
 402 void
 403 Editor::ruler_toggled (int ruler)
 404 {
 405         if (!session) return;
 406         if (ruler < 0 || ruler >= (int) sizeof(ruler_shown)) return;
 407
 408         if (no_ruler_shown_update) return;
 409
 410         if (ruler_shown[ruler]) {
 411                 if (visible_timebars <= 1) {
 412                         // must always have 1 visible
 413                         return;
 414                 }
 415         }
 416
 417         ruler_shown[ruler] = !ruler_shown[ruler];
 418
 419         update_ruler_visibility ();
 420
 421         // update session extra RulerVisibility
 422         store_ruler_visibility ();
 423 }
 424
 425 void
 426 Editor::store_ruler_visibility ()
 427 {
 428         XMLNode* node = new XMLNode(X_("RulerVisibility"));
 429
 430         node->add_property (X_("smpte"), ruler_shown[ruler_metric_smpte] ? "yes": "no");
 431         node->add_property (X_("bbt"), ruler_shown[ruler_metric_bbt] ? "yes": "no");
 432         node->add_property (X_("frames"), ruler_shown[ruler_metric_frames] ? "yes": "no");
 433         node->add_property (X_("minsec"), ruler_shown[ruler_metric_minsec] ? "yes": "no");
 434         node->add_property (X_("tempo"), ruler_shown[ruler_time_tempo] ? "yes": "no");
 435         node->add_property (X_("meter"), ruler_shown[ruler_time_meter] ? "yes": "no");
 436         node->add_property (X_("marker"), ruler_shown[ruler_time_marker] ? "yes": "no");
 437         node->add_property (X_("rangemarker"), ruler_shown[ruler_time_range_marker] ? "yes": "no");
 438         node->add_property (X_("transportmarker"), ruler_shown[ruler_time_transport_marker] ? "yes": "no");
 439
 440         session->add_extra_xml (*node);
 441         session->set_dirty ();
 442 }
 443
 444 void
 445 Editor::restore_ruler_visibility ()
 446 {
 447         XMLProperty* prop;
 448         XMLNode * node = session->extra_xml (X_("RulerVisibility"));
 449
 450         if (node) {
 451                 if ((prop = node->property ("smpte")) != 0) {
 452                         if (prop->value() == "yes")
 453                                 ruler_shown[ruler_metric_smpte] = true;
 454                         else
 455                                 ruler_shown[ruler_metric_smpte] = false;
 456                 }
 457                 if ((prop = node->property ("bbt")) != 0) {
 458                         if (prop->value() == "yes")
 459                                 ruler_shown[ruler_metric_bbt] = true;
 460                         else
 461                                 ruler_shown[ruler_metric_bbt] = false;
 462                 }
 463                 if ((prop = node->property ("frames")) != 0) {
 464                         if (prop->value() == "yes")
 465                                 ruler_shown[ruler_metric_frames] = true;
 466                         else
 467                                 ruler_shown[ruler_metric_frames] = false;
 468                 }
 469                 if ((prop = node->property ("minsec")) != 0) {
 470                         if (prop->value() == "yes")
 471                                 ruler_shown[ruler_metric_minsec] = true;
 472                         else
 473                                 ruler_shown[ruler_metric_minsec] = false;
 474                 }
 475                 if ((prop = node->property ("tempo")) != 0) {
 476                         if (prop->value() == "yes")
 477                                 ruler_shown[ruler_time_tempo] = true;
 478                         else
 479                                 ruler_shown[ruler_time_tempo] = false;
 480                 }
 481                 if ((prop = node->property ("meter")) != 0) {
 482                         if (prop->value() == "yes")
 483                                 ruler_shown[ruler_time_meter] = true;
 484                         else
 485                                 ruler_shown[ruler_time_meter] = false;
 486                 }
 487                 if ((prop = node->property ("marker")) != 0) {
 488                         if (prop->value() == "yes")
 489                                 ruler_shown[ruler_time_marker] = true;
 490                         else
 491                                 ruler_shown[ruler_time_marker] = false;
 492                 }
 493                 if ((prop = node->property ("rangemarker")) != 0) {
 494                         if (prop->value() == "yes")
 495                                 ruler_shown[ruler_time_range_marker] = true;
 496                         else
 497                                 ruler_shown[ruler_time_range_marker] = false;
 498                 }
 499                 if ((prop = node->property ("transportmarker")) != 0) {
 500                         if (prop->value() == "yes")
 501                                 ruler_shown[ruler_time_transport_marker] = true;
 502                         else
 503                                 ruler_shown[ruler_time_transport_marker] = false;
 504                 }
 505
 506         }
 507
 508         update_ruler_visibility ();
 509 }
 510
 511
 512 void
 513 Editor::update_ruler_visibility ()
 514 {
 515         using namespace Box_Helpers;
 516         BoxList & lab_children =  time_button_vbox.children();
 517         BoxList & ruler_children =  time_canvas_vbox.children();
 518
 519         visible_timebars = 0;
 520
 521         lab_children.clear();
 522
 523         // leave the last one (the time_canvas_scroller) intact
 524         while (ruler_children.size() > 1) {
 525                 ruler_children.pop_front();
 526         }
 527
 528         BoxList::iterator canvaspos = ruler_children.begin();
 529
 530         _smpte_ruler = gtk_custom_hruler_new ();
 531         smpte_ruler = wrap (_smpte_ruler);
 532         smpte_ruler->set_name ("SMPTERuler");
 533         smpte_ruler->set_usize (-1, (int)timebar_height);
 534         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_smpte_ruler), &ruler_metrics[ruler_metric_smpte]);
 535
 536         _bbt_ruler = gtk_custom_hruler_new ();
 537         bbt_ruler = wrap (_bbt_ruler);
 538         bbt_ruler->set_name ("BBTRuler");
 539         bbt_ruler->set_usize (-1, (int)timebar_height);
 540         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_bbt_ruler), &ruler_metrics[ruler_metric_bbt]);
 541
 542         _frames_ruler = gtk_custom_hruler_new ();
 543         frames_ruler = wrap (_frames_ruler);
 544         frames_ruler->set_name ("FramesRuler");
 545         frames_ruler->set_usize (-1, (int)timebar_height);
 546         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_frames_ruler), &ruler_metrics[ruler_metric_frames]);
 547
 548         _minsec_ruler = gtk_custom_hruler_new ();
 549         minsec_ruler = wrap (_minsec_ruler);
 550         minsec_ruler->set_name ("MinSecRuler");
 551         minsec_ruler->set_usize (-1, (int)timebar_height);
 552         gtk_custom_ruler_set_metric (GTK_CUSTOM_RULER(_minsec_ruler), &ruler_metrics[ruler_metric_minsec]);
 553
 554
 555         smpte_ruler->set_events (GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK);
 556         bbt_ruler->set_events (GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK);
 557         frames_ruler->set_events (GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK);
 558         minsec_ruler->set_events (GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK);
 559
 560         smpte_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
 561         bbt_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
 562         frames_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
 563         minsec_ruler->button_release_event.connect (slot (*this, &Editor::ruler_button_release));
 564
 565         smpte_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
 566         bbt_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
 567         frames_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
 568         minsec_ruler->button_press_event.connect (slot (*this, &Editor::ruler_button_press));
 569
 570         smpte_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
 571         bbt_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
 572         frames_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
 573         minsec_ruler->motion_notify_event.connect (slot (*this, &Editor::ruler_mouse_motion));
 574
 575
 576         if (ruler_shown[ruler_metric_minsec]) {
 577                 lab_children.push_back (Element(minsec_label, false, false));
 578                 ruler_children.insert (canvaspos, Element(*minsec_ruler, false, false));
 579                 visible_timebars++;
 580         }
 581
 582         if (ruler_shown[ruler_metric_smpte]) {
 583                 lab_children.push_back (Element(smpte_label, false, false));
 584                 ruler_children.insert (canvaspos, Element(*smpte_ruler, false, false));
 585                 visible_timebars++;
 586         }
 587
 588         if (ruler_shown[ruler_metric_frames]) {
 589                 lab_children.push_back (Element(frame_label, false, false));
 590                 ruler_children.insert (canvaspos, Element(*frames_ruler, false, false));
 591                 visible_timebars++;
 592         }
 593
 594         if (ruler_shown[ruler_metric_bbt]) {
 595                 lab_children.push_back (Element(bbt_label, false, false));
 596                 ruler_children.insert (canvaspos, Element(*bbt_ruler, false, false));
 597                 visible_timebars++;
 598         }
 599
 600         double tbpos = 0.0;
 601         double old_unit_pos ;
 602         GtkArg args[1] ;
 603         args[0].name = "y";
 604
 605         if (ruler_shown[ruler_time_meter]) {
 606                 lab_children.push_back (Element(meter_label, false, false));
 607
 608                 gtk_object_getv (GTK_OBJECT(meter_group), 1, args) ;
 609                 old_unit_pos = GTK_VALUE_DOUBLE (args[0]) ;
 610                 if (tbpos != old_unit_pos) {
 611                         gtk_canvas_item_move (meter_group, 0.0, tbpos - old_unit_pos) ;
 612                 }
 613
 614                 //gtk_canvas_item_set (meter_group, "y", tbpos, NULL);
 615                 gtk_canvas_item_show (meter_group);
 616                 tbpos += timebar_height;
 617                 visible_timebars++;
 618         }
 619         else {
 620                 gtk_canvas_item_hide (meter_group);
 621         }
 622
 623         if (ruler_shown[ruler_time_tempo]) {
 624                 lab_children.push_back (Element(tempo_label, false, false));
 625                 gtk_object_getv (GTK_OBJECT(tempo_group), 1, args) ;
 626                 old_unit_pos = GTK_VALUE_DOUBLE (args[0]) ;
 627                 if (tbpos != old_unit_pos) {
 628                         gtk_canvas_item_move (tempo_group, 0.0, tbpos - old_unit_pos) ;
 629                 }
 630                 //gtk_canvas_item_set (tempo_group, "y", tbpos, NULL);
 631                 gtk_canvas_item_show (tempo_group);
 632                 tbpos += timebar_height;
 633                 visible_timebars++;
 634         }
 635         else {
 636                 gtk_canvas_item_hide (tempo_group);
 637         }
 638
 639         if (ruler_shown[ruler_time_marker]) {
 640                 lab_children.push_back (Element(mark_label, false, false));
 641                 gtk_object_getv (GTK_OBJECT(marker_group), 1, args) ;
 642                 old_unit_pos = GTK_VALUE_DOUBLE (args[0]) ;
 643                 if (tbpos != old_unit_pos) {
 644                         gtk_canvas_item_move (marker_group, 0.0, tbpos - old_unit_pos) ;
 645                 }
 646                 //gtk_canvas_item_set (marker_group, "y", tbpos, NULL);
 647                 gtk_canvas_item_show (marker_group);
 648                 tbpos += timebar_height;
 649                 visible_timebars++;
 650         }
 651         else {
 652                 gtk_canvas_item_hide (marker_group);
 653         }
 654
 655         if (ruler_shown[ruler_time_range_marker]) {
 656                 lab_children.push_back (Element(range_mark_label, false, false));
 657                 gtk_object_getv (GTK_OBJECT(range_marker_group), 1, args) ;
 658                 old_unit_pos = GTK_VALUE_DOUBLE (args[0]) ;
 659                 if (tbpos != old_unit_pos) {
 660                         gtk_canvas_item_move (range_marker_group, 0.0, tbpos - old_unit_pos) ;
 661                 }
 662                 //gtk_canvas_item_set (marker_group, "y", tbpos, NULL);
 663                 gtk_canvas_item_show (range_marker_group);
 664                 tbpos += timebar_height;
 665                 visible_timebars++;
 666         }
 667         else {
 668                 gtk_canvas_item_hide (range_marker_group);
 669         }
 670
 671         if (ruler_shown[ruler_time_transport_marker]) {
 672                 lab_children.push_back (Element(transport_mark_label, false, false));
 673                 gtk_object_getv (GTK_OBJECT(transport_marker_group), 1, args) ;
 674                 old_unit_pos = GTK_VALUE_DOUBLE (args[0]) ;
 675                 if (tbpos != old_unit_pos) {
 676                         gtk_canvas_item_move (transport_marker_group, 0.0, tbpos - old_unit_pos) ;
 677                 }
 678                 //gtk_canvas_item_set (marker_group, "y", tbpos, NULL);
 679                 gtk_canvas_item_show (transport_marker_group);
 680                 tbpos += timebar_height;
 681                 visible_timebars++;
 682         }
 683         else {
 684                 gtk_canvas_item_hide (transport_marker_group);
 685         }
 686
 687         time_canvas_vbox.set_usize (-1, (int)(timebar_height * visible_timebars));
 688         time_canvas_event_box.queue_resize();
 689
 690         update_fixed_rulers();
 691         //update_tempo_based_rulers();
 692         tempo_map_changed(Change (0));
 693
 694         time_canvas_event_box.show_all();
 695         time_button_event_box.show_all();
 696 }
 697
 698 void
 699 Editor::update_just_smpte ()
 700 {
 701         ENSURE_GUI_THREAD(slot (*this, &Editor::update_just_smpte));
 702
 703         if (session == 0) {
 704                 return;
 705         }
 706
 707         /* XXX Note the potential loss of accuracy here as we convert from
 708            an uint32_t (or larger) to a float ... what to do ?
 709         */
 710
 711         jack_nframes_t page = (jack_nframes_t) floor (canvas_width * frames_per_unit);
 712         jack_nframes_t rightmost_frame = leftmost_frame + page;
 713
 714         if (ruler_shown[ruler_metric_smpte]) {
 715                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 716                                             leftmost_frame, session->current_end_frame());
 717         }
 718 }
 719
 720 void
 721 Editor::update_fixed_rulers ()
 722 {
 723         jack_nframes_t rightmost_frame;
 724
 725         if (session == 0) {
 726                 return;
 727         }
 728
 729         /* XXX Note the potential loss of accuracy here as we convert from
 730            an uint32_t (or larger) to a float ... what to do ?
 731         */
 732
 733         jack_nframes_t page = (jack_nframes_t) floor (canvas_width * frames_per_unit);
 734
 735         ruler_metrics[ruler_metric_smpte].units_per_pixel = frames_per_unit;
 736         ruler_metrics[ruler_metric_frames].units_per_pixel = frames_per_unit;
 737         ruler_metrics[ruler_metric_minsec].units_per_pixel = frames_per_unit;
 738
 739         rightmost_frame = leftmost_frame + page;
 740
 741         /* these force a redraw, which in turn will force execution of the metric callbacks
 742            to compute the relevant ticks to display.
 743         */
 744
 745         if (ruler_shown[ruler_metric_smpte]) {
 746                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_smpte_ruler), leftmost_frame, rightmost_frame,
 747                                             leftmost_frame, session->current_end_frame());
 748         }
 749
 750         if (ruler_shown[ruler_metric_frames]) {
 751                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_frames_ruler), leftmost_frame, rightmost_frame,
 752                                             leftmost_frame, session->current_end_frame());
 753         }
 754
 755         if (ruler_shown[ruler_metric_minsec]) {
 756                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_minsec_ruler), leftmost_frame, rightmost_frame,
 757                                             leftmost_frame, session->current_end_frame());
 758         }
 759 }
 760
 761 void
 762 Editor::update_tempo_based_rulers ()
 763 {
 764         if (session == 0) {
 765                 return;
 766         }
 767
 768         /* XXX Note the potential loss of accuracy here as we convert from
 769            an uint32_t (or larger) to a float ... what to do ?
 770         */
 771
 772         jack_nframes_t page = (jack_nframes_t) floor (canvas_width * frames_per_unit);
 773         ruler_metrics[ruler_metric_bbt].units_per_pixel = frames_per_unit;
 774
 775         if (ruler_shown[ruler_metric_bbt]) {
 776                 gtk_custom_ruler_set_range (GTK_CUSTOM_RULER(_bbt_ruler), leftmost_frame, leftmost_frame+page,
 777                                             leftmost_frame, session->current_end_frame());
 778         }
 779 }
 780
 781 /* Mark generation */
 782
 783 gint
 784 Editor::_metric_get_smpte (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
 785 {
 786         return ruler_editor->metric_get_smpte (marks, lower, upper, maxchars);
 787 }
 788
 789 gint
 790 Editor::_metric_get_bbt (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
 791 {
 792         return ruler_editor->metric_get_bbt (marks, lower, upper, maxchars);
 793 }
 794
 795 gint
 796 Editor::_metric_get_frames (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
 797 {
 798         return ruler_editor->metric_get_frames (marks, lower, upper, maxchars);
 799 }
 800
 801 gint
 802 Editor::_metric_get_minsec (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
 803 {
 804         return ruler_editor->metric_get_minsec (marks, lower, upper, maxchars);
 805 }
 806
 807 gint
 808 Editor::metric_get_smpte (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
 809 {
 810         jack_nframes_t range;
 811         jack_nframes_t pos;
 812         jack_nframes_t spacer;
 813         jack_nframes_t fr;
 814         SMPTE_Time smpte;
 815         gchar buf[16];
 816         gint nmarks = 0;
 817         gint n;
 818         bool show_bits = false;
 819         bool show_frames = false;
 820         bool show_seconds = false;
 821         bool show_minutes = false;
 822         bool show_hours = false;
 823         int mark_modulo;
 824
 825         if (session == 0) {
 826                 return 0;
 827         }
 828
 829         fr = session->frame_rate();
 830
 831         if (lower > (spacer = (jack_nframes_t)(128 * Editor::get_current_zoom ()))) {
 832                 lower = lower - spacer;
 833         } else {
 834                 upper = upper + spacer - lower;
 835                 lower = 0;
 836         }
 837         range = upper - lower;
 838
 839         if (range < (2 * session->frames_per_smpte_frame())) { /* 0 - 2 frames */
 840                 show_bits = true;
 841                 mark_modulo = 20;
 842                 nmarks = 1 + 160;
 843         } else if (range <= (fr / 4)) { /* 2 frames - 0.250 second */
 844                 show_frames = true;
 845                 mark_modulo = 1;
 846                 nmarks = 1 + (range / (jack_nframes_t)session->frames_per_smpte_frame());
 847         } else if (range <= (fr / 2)) { /* 0.25-0.5 second */
 848                 show_frames = true;
 849                 mark_modulo = 2;
 850                 nmarks = 1 + (range / (jack_nframes_t)session->frames_per_smpte_frame());
 851         } else if (range <= fr) { /* 0.5-1 second */
 852                 show_frames = true;
 853                 mark_modulo = 5;
 854                 nmarks = 1 + (range / (jack_nframes_t)session->frames_per_smpte_frame());
 855         } else if (range <= 2 * fr) { /* 1-2 seconds */
 856                 show_frames = true;
 857                 mark_modulo = 10;
 858                 nmarks = 1 + (range / (jack_nframes_t)session->frames_per_smpte_frame());
 859         } else if (range <= 8 * fr) { /* 2-8 seconds */
 860                 show_seconds = true;
 861                 mark_modulo = 1;
 862                 nmarks = 1 + (range / fr);
 863         } else if (range <= 16 * fr) { /* 8-16 seconds */
 864                 show_seconds = true;
 865                 mark_modulo = 2;
 866                 nmarks = 1 + (range / fr);
 867         } else if (range <= 30 * fr) { /* 16-30 seconds */
 868                 show_seconds = true;
 869                 mark_modulo = 5;
 870                 nmarks = 1 + (range / fr);
 871         } else if (range <= 60 * fr) { /* 30-60 seconds */
 872                 show_seconds = true;
 873                 mark_modulo = 5;
 874                 nmarks = 1 + (range / fr);
 875         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
 876                 show_seconds = true;
 877                 mark_modulo = 20;
 878                 nmarks = 1 + (range / fr);
 879         } else if (range <= 4 * 60 * fr) { /* 2-4 minutes */
 880                 show_seconds = true;
 881                 mark_modulo = 30;
 882                 nmarks = 1 + (range / fr);
 883         } else if (range <= 10 * 60 * fr) { /* 4-10 minutes */
 884                 show_minutes = true;
 885                 mark_modulo = 2;
 886                 nmarks = 1 + 10;
 887         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
 888                 show_minutes = true;
 889                 mark_modulo = 5;
 890                 nmarks = 1 + 30;
 891         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
 892                 show_minutes = true;
 893                 mark_modulo = 10;
 894                 nmarks = 1 + 60;
 895         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
 896                 show_minutes = true;
 897                 mark_modulo = 30;
 898                 nmarks = 1 + (60 * 4);
 899         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
 900                 show_hours = true;
 901                 mark_modulo = 1;
 902                 nmarks = 1 + 8;
 903         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
 904                 show_hours = true;
 905                 mark_modulo = 1;
 906                 nmarks = 1 + 24;
 907         } else {
 908
 909                 /* not possible if jack_nframes_t is a 32 bit quantity */
 910
 911                 show_hours = true;
 912                 mark_modulo = 4;
 913                 nmarks = 1 + 24;
 914         }
 915
 916         pos = lower;
 917
 918         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
 919
 920         if (show_bits) {
 921                 // Find smpte time of this sample (pos) with subframe accuracy
 922                 session->sample_to_smpte(pos, smpte, true /* use_offset */, true /* use_subframes */ );
 923
 924                 for (n = 0; n < nmarks; n++) {
 925                         session->smpte_to_sample(smpte, pos, true /* use_offset */, true /* use_subframes */ );
 926                         if ((smpte.subframes % mark_modulo) == 0) {
 927                                 if (smpte.subframes == 0) {
 928                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 929                                         snprintf (buf, sizeof(buf), "%s%02ld:%02ld:%02ld:%02ld", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
 930                                 } else {
 931                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
 932                                         snprintf (buf, sizeof(buf), ".%02ld", smpte.subframes);
 933                                 }
 934                         } else {
 935                                 snprintf (buf, sizeof(buf)," ");
 936                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
 937
 938                         }
 939                         (*marks)[n].label = g_strdup (buf);
 940                         (*marks)[n].position = pos;
 941
 942                         // Increment subframes by one
 943                         session->smpte_increment_subframes( smpte );
 944                 }
 945         } else if (show_seconds) {
 946                 // Find smpte time of this sample (pos)
 947                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
 948                 // Go to next whole second down
 949                 session->smpte_seconds_floor( smpte );
 950
 951                 for (n = 0; n < nmarks; n++) {
 952                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
 953                         if ((smpte.seconds % mark_modulo) == 0) {
 954                                 if (smpte.seconds == 0) {
 955                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 956                                         (*marks)[n].position = pos;
 957                                 } else {
 958                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
 959                                         (*marks)[n].position = pos;
 960                                 }
 961                                 snprintf (buf, sizeof(buf), "%s%02ld:%02ld:%02ld:%02ld", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
 962                         } else {
 963                                 snprintf (buf, sizeof(buf)," ");
 964                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
 965                                 (*marks)[n].position = pos;
 966
 967                         }
 968                         (*marks)[n].label = g_strdup (buf);
 969                         session->smpte_increment_seconds( smpte );
 970                 }
 971         } else if (show_minutes) {
 972                 // Find smpte time of this sample (pos)
 973                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
 974                 // Go to next whole minute down
 975                 session->smpte_minutes_floor( smpte );
 976
 977                 for (n = 0; n < nmarks; n++) {
 978                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
 979                         if ((smpte.minutes % mark_modulo) == 0) {
 980                                 if (smpte.minutes == 0) {
 981                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
 982                                 } else {
 983                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
 984                                 }
 985                                 snprintf (buf, sizeof(buf), "%s%02ld:%02ld:%02ld:%02ld", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
 986                         } else {
 987                                 snprintf (buf, sizeof(buf)," ");
 988                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
 989
 990                         }
 991                         (*marks)[n].label = g_strdup (buf);
 992                         (*marks)[n].position = pos;
 993                         session->smpte_increment_minutes( smpte );
 994                 }
 995         } else if (show_hours) {
 996                 // Find smpte time of this sample (pos)
 997                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
 998                 // Go to next whole hour down
 999                 session->smpte_hours_floor( smpte );
1000
1001                 for (n = 0; n < nmarks; n++) {
1002                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1003                         if ((smpte.hours % mark_modulo) == 0) {
1004                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1005                                 snprintf (buf, sizeof(buf), "%s%02ld:%02ld:%02ld:%02ld", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1006                         } else {
1007                                 snprintf (buf, sizeof(buf)," ");
1008                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1009
1010                         }
1011                         (*marks)[n].label = g_strdup (buf);
1012                         (*marks)[n].position = pos;
1013
1014                         session->smpte_increment_hours( smpte );
1015                 }
1016         } else { // show_frames
1017                 // Find smpte time of this sample (pos)
1018                 session->sample_to_smpte(pos, smpte, true /* use_offset */, false /* use_subframes */ );
1019                 // Go to next whole frame down
1020                 session->smpte_frames_floor( smpte );
1021
1022                 for (n = 0; n < nmarks; n++) {
1023                         session->smpte_to_sample(smpte, pos, true /* use_offset */, false /* use_subframes */ );
1024                         if ((smpte.frames % mark_modulo) == 0)  {
1025                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1026                                 (*marks)[n].position = pos;
1027                                 snprintf (buf, sizeof(buf), "%s%02ld:%02ld:%02ld:%02ld", smpte.negative ? "-" : "", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
1028                         } else {
1029                                 snprintf (buf, sizeof(buf)," ");
1030                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1031                                 (*marks)[n].position = pos;
1032
1033                         }
1034                         (*marks)[n].label = g_strdup (buf);
1035                         session->smpte_increment( smpte );
1036                 }
1037         }
1038
1039         return nmarks;
1040 }
1041
1042
1043 gint
1044 Editor::metric_get_bbt (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
1045 {
1046         if (session == 0) {
1047                 return 0;
1048         }
1049
1050         TempoMap::BBTPointList::iterator i;
1051         TempoMap::BBTPointList *zoomed_bbt_points;
1052         uint32_t beats = 0;
1053         uint32_t bars = 0;
1054         uint32_t tick = 0;
1055         uint32_t skip;
1056         uint32_t t;
1057         uint32_t zoomed_beats = 0;
1058         uint32_t zoomed_bars = 0;
1059         uint32_t desirable_marks;
1060         uint32_t magic_accent_number = 1;
1061         gint nmarks;
1062         char buf[64];
1063         gint n;
1064         jack_nframes_t pos;
1065         jack_nframes_t frame_one_beats_worth;
1066         jack_nframes_t frame_skip;
1067         double frame_skip_error;
1068         double accumulated_error;
1069         bool bar_helper_on = true;
1070
1071
1072         BBT_Time previous_beat;
1073         BBT_Time next_beat;
1074         jack_nframes_t next_beat_pos;
1075
1076         if ((desirable_marks = maxchars / 6) == 0) {
1077                return 0;
1078         }
1079
1080         /* align the tick marks to whatever we're snapping to... */
1081
1082         if (snap_type == SnapToAThirdBeat) {
1083                 bbt_beat_subdivision = 3;
1084         } else if (snap_type == SnapToAQuarterBeat) {
1085                 bbt_beat_subdivision = 4;
1086         } else if (snap_type == SnapToAEighthBeat) {
1087                 bbt_beat_subdivision = 8;
1088                 magic_accent_number = 2;
1089         } else if (snap_type == SnapToASixteenthBeat) {
1090                 bbt_beat_subdivision = 16;
1091                 magic_accent_number = 4;
1092         } else if (snap_type == SnapToAThirtysecondBeat) {
1093                 bbt_beat_subdivision = 32;
1094                 magic_accent_number = 8;
1095         } else {
1096                bbt_beat_subdivision = 4;
1097         }
1098
1099         /* First find what a beat's distance is, so we can start plotting stuff before the beginning of the ruler */
1100
1101         session->bbt_time(lower,previous_beat);
1102         previous_beat.ticks = 0;
1103         next_beat = previous_beat;
1104
1105         if (session->tempo_map().meter_at(lower).beats_per_bar() < (next_beat.beats + 1)) {
1106                next_beat.bars += 1;
1107                next_beat.beats = 1;
1108         } else {
1109                next_beat.beats += 1;
1110         }
1111
1112         frame_one_beats_worth = session->tempo_map().frame_time(next_beat) - session->tempo_map().frame_time(previous_beat);
1113
1114
1115         zoomed_bbt_points = session->tempo_map().get_points((lower >= frame_one_beats_worth) ? lower - frame_one_beats_worth : 0, upper);
1116
1117         if (current_bbt_points == 0 || zoomed_bbt_points == 0 || zoomed_bbt_points->empty()) {
1118                 return 0;
1119         }
1120
1121         for (i = current_bbt_points->begin(); i != current_bbt_points->end(); i++) {
1122                 if ((*i).type == TempoMap::Beat) {
1123                         beats++;
1124                 } else if ((*i).type == TempoMap::Bar) {
1125                         bars++;
1126                 }
1127         }
1128         /*Only show the bar helper if there aren't many bars on the screen */
1129         if (bars > 1) {
1130                 bar_helper_on = false;
1131         }
1132
1133         for (i = zoomed_bbt_points->begin(); i != zoomed_bbt_points->end(); i++) {
1134                 if ((*i).type == TempoMap::Beat) {
1135                         zoomed_beats++;
1136                 } else if ((*i).type == TempoMap::Bar) {
1137                         zoomed_bars++;
1138                 }
1139         }
1140
1141         if (desirable_marks > (beats / 4)) {
1142
1143                 /* we're in beat land...*/
1144
1145                 double position_of_helper;
1146                 bool i_am_accented = false;
1147                 bool we_need_ticks = false;
1148
1149                 position_of_helper = lower + (30 * Editor::get_current_zoom ());
1150
1151                 if (desirable_marks >= (beats * 2)) {
1152                         nmarks = (zoomed_beats * bbt_beat_subdivision) + 1;
1153                         we_need_ticks = true;
1154                 } else {
1155                         nmarks = zoomed_beats + 1;
1156                 }
1157
1158                 *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1159
1160                 (*marks)[0].label = g_strdup(" ");
1161                 (*marks)[0].position = lower;
1162                 (*marks)[0].style = GtkCustomRulerMarkMicro;
1163
1164                 for (n = 1, i = zoomed_bbt_points->begin(); i != zoomed_bbt_points->end() && n < nmarks; ++i) {
1165
1166                         if ((*i).frame <= lower && (bar_helper_on)) {
1167
1168                                         snprintf (buf, sizeof(buf), "<%" PRIu32 "|%" PRIu32, (*i).bar, (*i).beat);
1169                                         (*marks)[0].label = g_strdup (buf);
1170                         } else {
1171
1172
1173                           if ((*i).type == TempoMap::Bar)  {
1174                             tick = 0;
1175                             (((*i).frame < position_of_helper) && bar_helper_on) ?
1176                               snprintf (buf, sizeof(buf), " ") : snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1177                             (*marks)[n].label = g_strdup (buf);
1178                             (*marks)[n].position = (*i).frame;
1179                             (*marks)[n].style = GtkCustomRulerMarkMajor;
1180                             n++;
1181
1182                           } else if (((*i).type == TempoMap::Beat) && ((*i).beat > 1)) {
1183                             tick = 0;
1184                             ((((*i).frame < position_of_helper) && bar_helper_on) || !we_need_ticks) ?
1185                               snprintf (buf, sizeof(buf), " ") : snprintf (buf, sizeof(buf), "%" PRIu32, (*i).beat);
1186                             if (((*i).beat % 2 == 1) || we_need_ticks) {
1187                               (*marks)[n].style = GtkCustomRulerMarkMinor;
1188                             } else {
1189                               (*marks)[n].style = GtkCustomRulerMarkMicro;
1190                             }
1191                             (*marks)[n].label =  g_strdup (buf);
1192                             (*marks)[n].position = (*i).frame;
1193                             n++;
1194                           }
1195
1196                         }
1197                         /* Find the next beat */
1198
1199                         session->bbt_time((*i).frame, next_beat);
1200
1201                         if (session->tempo_map().meter_at((*i).frame).beats_per_bar() > (next_beat.beats + 1)) {
1202                           next_beat.beats += 1;
1203                         } else {
1204                           next_beat.bars += 1;
1205                           next_beat.beats = 1;
1206                         }
1207
1208                         next_beat_pos = session->tempo_map().frame_time(next_beat);
1209
1210                         /* Add the tick marks */
1211
1212                         if (we_need_ticks) {
1213
1214                                 frame_skip = (jack_nframes_t) floor ((session->frame_rate() *  60) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute()));
1215                                 frame_skip_error =  ((session->frame_rate() *  60.0f) / (bbt_beat_subdivision * (*i).tempo->beats_per_minute())) - frame_skip;
1216                                 skip = (uint32_t) (Meter::ticks_per_beat / bbt_beat_subdivision);
1217
1218                                 pos = (*i).frame + frame_skip;
1219                                 accumulated_error = frame_skip_error;
1220
1221                                 tick += skip;
1222
1223                                 for (t = 0; tick < Meter::ticks_per_beat && pos <= next_beat_pos ; pos += frame_skip, tick += skip, ++t) {
1224
1225                                         if (t % magic_accent_number == (magic_accent_number - 1)) {
1226                                                 i_am_accented = true;
1227                                         }
1228                                         if (Editor::get_current_zoom () > 32) {
1229                                                 snprintf (buf, sizeof(buf), " ");
1230                                         } else if ((Editor::get_current_zoom () > 8) && !i_am_accented) {
1231                                                 snprintf (buf, sizeof(buf), " ");
1232                                         } else  if (bar_helper_on && (pos < position_of_helper)) {
1233                                                 snprintf (buf, sizeof(buf), " ");
1234                                         } else {
1235                                                 snprintf (buf, sizeof(buf), "%" PRIu32, tick);
1236                                         }
1237
1238                                         (*marks)[n].label = g_strdup (buf);
1239
1240                                         /* Error compensation for float to jack_nframes_t*/
1241                                         accumulated_error += frame_skip_error;
1242                                         if (accumulated_error > 1) {
1243                                                 pos += 1;
1244                                                 accumulated_error -= 1.0f;
1245                                         }
1246
1247                                         (*marks)[n].position = pos;
1248
1249                                         if ((bbt_beat_subdivision > 4) && i_am_accented) {
1250                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1251                                         } else {
1252                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1253                                         }
1254                                         i_am_accented = false;
1255                                         n++;
1256
1257                                 }
1258                         }
1259                 }
1260                 delete zoomed_bbt_points;
1261                 return n; //return the actual number of marks made, since we might have skipped some fro fractional time signatures
1262
1263        } else {
1264
1265                 /* we're in bar land */
1266
1267                 if (desirable_marks < (uint32_t) (zoomed_bars / 256)) {
1268                         nmarks = 1;
1269                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1270                         snprintf (buf, sizeof(buf), "too many bars... (currently %" PRIu32 ")", zoomed_bars );
1271                         (*marks)[0].style = GtkCustomRulerMarkMajor;
1272                         (*marks)[0].label = g_strdup (buf);
1273                         (*marks)[0].position = lower;
1274                 } else if (desirable_marks < (uint32_t) (nmarks = (gint) (zoomed_bars / 64))) {
1275                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1276                         for (n = 0, i = zoomed_bbt_points->begin(); i != zoomed_bbt_points->end() && n < nmarks; i++) {
1277                                 if ((*i).type == TempoMap::Bar)  {
1278                                         if ((*i).bar % 64 == 1) {
1279                                                 if ((*i).bar % 256 == 1) {
1280                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1281                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1282                                                 } else {
1283                                                         snprintf (buf, sizeof(buf), " ");
1284                                                         if ((*i).bar % 256 == 129)  {
1285                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1286                                                         } else {
1287                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1288                                                         }
1289                                                 }
1290                                                 (*marks)[n].label = g_strdup (buf);
1291                                                 (*marks)[n].position = (*i).frame;
1292                                                 n++;
1293                                         }
1294                                 }
1295                         }
1296                 } else if (desirable_marks < (uint32_t) (nmarks = (gint)(zoomed_bars / 16))) {
1297                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1298                         for (n = 0, i = zoomed_bbt_points->begin(); i != zoomed_bbt_points->end() && n < nmarks; i++) {
1299                                 if ((*i).type == TempoMap::Bar)  {
1300                                         if ((*i).bar % 16 == 1) {
1301                                                 if ((*i).bar % 64 == 1) {
1302                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1303                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1304                                                 } else {
1305                                                         snprintf (buf, sizeof(buf), " ");
1306                                                         if ((*i).bar % 64 == 33)  {
1307                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1308                                                         } else {
1309                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1310                                                         }
1311                                                 }
1312                                                 (*marks)[n].label = g_strdup (buf);
1313                                                 (*marks)[n].position = (*i).frame;
1314                                                 n++;
1315                                         }
1316                                 }
1317                         }
1318                 } else if (desirable_marks < (uint32_t) (nmarks = (gint)(zoomed_bars / 4))){
1319                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1320                         for (n = 0, i = zoomed_bbt_points->begin(); i != zoomed_bbt_points->end() && n < nmarks; ++i) {
1321                                 if ((*i).type == TempoMap::Bar)  {
1322                                         if ((*i).bar % 4 == 1) {
1323                                                 if ((*i).bar % 16 == 1) {
1324                                                         snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1325                                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1326                                                 } else {
1327                                                         snprintf (buf, sizeof(buf), " ");
1328                                                         if ((*i).bar % 16 == 9)  {
1329                                                                 (*marks)[n].style = GtkCustomRulerMarkMinor;
1330                                                         } else {
1331                                                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1332                                                         }
1333                                                 }
1334                                                 (*marks)[n].label = g_strdup (buf);
1335                                                 (*marks)[n].position = (*i).frame;
1336                                                 n++;
1337                                         }
1338                                 }
1339                         }
1340                 } else {
1341                         nmarks = zoomed_bars;
1342                         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1343                         for (n = 0, i = zoomed_bbt_points->begin(); i != zoomed_bbt_points->end() && n < nmarks; i++) {
1344                                 if ((*i).type == TempoMap::Bar)  {
1345                                         if ((*i).bar % 4 == 1) {
1346                                                 snprintf (buf, sizeof(buf), "%" PRIu32, (*i).bar);
1347                                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1348                                         } else {
1349                                                 snprintf (buf, sizeof(buf), " ");
1350                                                 if ((*i).bar % 4 == 3)  {
1351                                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1352                                                 } else {
1353                                                         (*marks)[n].style = GtkCustomRulerMarkMicro;
1354                                                 }
1355                                         }
1356                                         (*marks)[n].label = g_strdup (buf);
1357                                         (*marks)[n].position = (*i).frame;
1358                                         n++;
1359                                 }
1360                         }
1361                 }
1362                 delete zoomed_bbt_points;
1363                 return nmarks;
1364         }
1365 }
1366
1367 gint
1368 Editor::metric_get_frames (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
1369 {
1370         jack_nframes_t mark_interval;
1371         jack_nframes_t pos;
1372         gchar buf[16];
1373         gint nmarks;
1374         gint n;
1375
1376         if (session == 0) {
1377                 return 0;
1378         }
1379
1380         mark_interval = (upper - lower) / 5;
1381         if (mark_interval > session->frame_rate()) {
1382                 mark_interval -= mark_interval % session->frame_rate();
1383         } else {
1384                 mark_interval = session->frame_rate() / (session->frame_rate() / mark_interval ) ;
1385         }
1386         nmarks = 5;
1387         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1388         for (n = 0, pos = lower; n < nmarks; pos += mark_interval, ++n) {
1389                 snprintf (buf, sizeof(buf), "%u", pos);
1390                 (*marks)[n].label = g_strdup (buf);
1391                 (*marks)[n].position = pos;
1392                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1393         }
1394
1395         return nmarks;
1396 }
1397
1398 static void
1399 sample_to_clock_parts ( jack_nframes_t sample,
1400                         jack_nframes_t sample_rate,
1401                         long *hrs_p,
1402                         long *mins_p,
1403                         long *secs_p,
1404                         long *millisecs_p)
1405
1406 {
1407         jack_nframes_t left;
1408         long hrs;
1409         long mins;
1410         long secs;
1411         long millisecs;
1412
1413         left = sample;
1414         hrs = left / (sample_rate * 60 * 60);
1415         left -= hrs * sample_rate * 60 * 60;
1416         mins = left / (sample_rate * 60);
1417         left -= mins * sample_rate * 60;
1418         secs = left / sample_rate;
1419         left -= secs * sample_rate;
1420         millisecs = left * 1000 / sample_rate;
1421
1422         *millisecs_p = millisecs;
1423         *secs_p = secs;
1424         *mins_p = mins;
1425         *hrs_p = hrs;
1426
1427         return;
1428 }
1429
1430 gint
1431 Editor::metric_get_minsec (GtkCustomRulerMark **marks, gulong lower, gulong upper, gint maxchars)
1432 {
1433         jack_nframes_t range;
1434         jack_nframes_t fr;
1435         jack_nframes_t mark_interval;
1436         jack_nframes_t pos;
1437         jack_nframes_t spacer;
1438         long hrs, mins, secs, millisecs;
1439         gchar buf[16];
1440         gint nmarks;
1441         gint n;
1442         gint mark_modulo = 100;
1443         bool show_seconds = false;
1444         bool show_minutes = false;
1445         bool show_hours = false;
1446
1447         if (session == 0) {
1448                 return 0;
1449         }
1450
1451         fr = session->frame_rate();
1452
1453         /* to prevent 'flashing' */
1454         if (lower > (spacer = (jack_nframes_t)(128 * Editor::get_current_zoom ()))) {
1455                 lower = lower - spacer;
1456         } else {
1457                 upper = upper + spacer;
1458                 lower = 0;
1459         }
1460         range = upper - lower;
1461
1462         if (range <  (fr / 50)) {
1463                 mark_interval =  fr / 100; /* show 1/100 seconds */
1464                 mark_modulo = 10;
1465         } else if (range <= (fr / 10)) { /* 0-0.1 second */
1466                 mark_interval = fr / 50; /* show 1/50 seconds */
1467                 mark_modulo = 20;
1468         } else if (range <= (fr / 2)) { /* 0-0.5 second */
1469                 mark_interval = fr / 20;  /* show 1/20 seconds */
1470                 mark_modulo = 100;
1471         } else if (range <= fr) { /* 0-1 second */
1472                 mark_interval = fr / 10;  /* show 1/10 seconds */
1473                 mark_modulo = 200;
1474         } else if (range <= 2 * fr) { /* 1-2 seconds */
1475                 mark_interval = fr / 2; /* show 1/2 seconds */
1476                 mark_modulo = 500;
1477         } else if (range <= 8 * fr) { /* 2-5 seconds */
1478                 mark_interval =  fr / 5; /* show 2 seconds */
1479                 mark_modulo = 1000;
1480         } else if (range <= 16 * fr) { /* 8-16 seconds */
1481                 mark_interval =  fr; /* show 1 seconds */
1482                 show_seconds = true;
1483                 mark_modulo = 5;
1484         } else if (range <= 30 * fr) { /* 10-30 seconds */
1485                 mark_interval =  fr; /* show 10 seconds */
1486                 show_seconds = true;
1487                 mark_modulo = 5;
1488         } else if (range <= 60 * fr) { /* 30-60 seconds */
1489                 mark_interval = 5 * fr; /* show 5 seconds */
1490                 show_seconds = true;
1491                 mark_modulo = 3;
1492         } else if (range <= 2 * 60 * fr) { /* 1-2 minutes */
1493                 mark_interval = 5 * fr; /* show 5 seconds */
1494                 show_seconds = true;
1495                 mark_modulo = 3;
1496         } else if (range <= 4 * 60 * fr) { /* 4 minutes */
1497                 mark_interval = 10 * fr; /* show 10 seconds */
1498                 show_seconds = true;
1499                 mark_modulo = 30;
1500         } else if (range <= 10 * 60 * fr) { /* 10 minutes */
1501                 mark_interval = 30 * fr; /* show 30 seconds */
1502                 show_seconds = true;
1503                 mark_modulo = 60;
1504         } else if (range <= 30 * 60 * fr) { /* 10-30 minutes */
1505                 mark_interval =  60 * fr; /* show 1 minute */
1506                 show_minutes = true;
1507                 mark_modulo = 5;
1508         } else if (range <= 60 * 60 * fr) { /* 30 minutes - 1hr */
1509                 mark_interval = 2 * 60 * fr; /* show 2 minutes */
1510                 show_minutes = true;
1511                 mark_modulo = 10;
1512         } else if (range <= 4 * 60 * 60 * fr) { /* 1 - 4 hrs*/
1513                 mark_interval = 5 * 60 * fr; /* show 10 minutes */
1514                 show_minutes = true;
1515                 mark_modulo = 30;
1516         } else if (range <= 8 * 60 * 60 * fr) { /* 4 - 8 hrs*/
1517                 mark_interval = 20 * 60 * fr; /* show 20 minutes */
1518                 show_minutes = true;
1519                 mark_modulo = 60;
1520         } else if (range <= 16 * 60 * 60 * fr) { /* 16-24 hrs*/
1521                 mark_interval =  60 * 60 * fr; /* show 60 minutes */
1522                 show_hours = true;
1523                 mark_modulo = 2;
1524         } else {
1525
1526                 /* not possible if jack_nframes_t is a 32 bit quantity */
1527
1528                 mark_interval = 4 * 60 * 60 * fr; /* show 4 hrs */
1529         }
1530
1531         nmarks = 1 + (range / mark_interval);
1532         *marks = (GtkCustomRulerMark *) g_malloc (sizeof(GtkCustomRulerMark) * nmarks);
1533         pos = ((lower + (mark_interval/2))/mark_interval) * mark_interval;
1534
1535         if (show_seconds) {
1536                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1537                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1538                         if (secs % mark_modulo == 0) {
1539                                 if (secs == 0) {
1540                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1541                                 } else {
1542                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1543                                 }
1544                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1545                         } else {
1546                                 snprintf (buf, sizeof(buf), " ");
1547                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1548                         }
1549                         (*marks)[n].label = g_strdup (buf);
1550                         (*marks)[n].position = pos;
1551                 }
1552         } else if (show_minutes) {
1553                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1554                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1555                         if (mins % mark_modulo == 0) {
1556                                 if (mins == 0) {
1557                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1558                                 } else {
1559                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1560                                 }
1561                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1562                         } else {
1563                                 snprintf (buf, sizeof(buf), " ");
1564                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1565                         }
1566                         (*marks)[n].label = g_strdup (buf);
1567                         (*marks)[n].position = pos;
1568                 }
1569         } else if (show_hours) {
1570                  for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1571                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1572                         if (hrs % mark_modulo == 0) {
1573                                 (*marks)[n].style = GtkCustomRulerMarkMajor;
1574                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1575                         } else {
1576                                 snprintf (buf, sizeof(buf), " ");
1577                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1578                         }
1579                         (*marks)[n].label = g_strdup (buf);
1580                         (*marks)[n].position = pos;
1581                 }
1582         } else {
1583                 for (n = 0; n < nmarks; pos += mark_interval, ++n) {
1584                         sample_to_clock_parts (pos, fr, &hrs, &mins, &secs, &millisecs);
1585                         if (millisecs % mark_modulo == 0) {
1586                                 if (millisecs == 0) {
1587                                         (*marks)[n].style = GtkCustomRulerMarkMajor;
1588                                 } else {
1589                                         (*marks)[n].style = GtkCustomRulerMarkMinor;
1590                                 }
1591                                 snprintf (buf, sizeof(buf), "%02ld:%02ld:%02ld.%03ld", hrs, mins, secs, millisecs);
1592                         } else {
1593                                 snprintf (buf, sizeof(buf), " ");
1594                                 (*marks)[n].style = GtkCustomRulerMarkMicro;
1595                         }
1596                         (*marks)[n].label = g_strdup (buf);
1597                         (*marks)[n].position = pos;
1598                 }
1599         }
1600
1601         return nmarks;
1602 }