gtk2_ardour/editor_ops.cc

   1 /*
   2     Copyright (C) 2000-2004 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 /* Note: public Editor methods are documented in public_editor.h */
  21
  22 #include <unistd.h>
  23
  24 #include <cstdlib>
  25 #include <cmath>
  26 #include <string>
  27 #include <map>
  28 #include <set>
  29
  30 #include "pbd/error.h"
  31 #include "pbd/basename.h"
  32 #include "pbd/pthread_utils.h"
  33 #include "pbd/memento_command.h"
  34 #include "pbd/whitespace.h"
  35 #include "pbd/stateful_diff_command.h"
  36
  37 #include <gtkmm2ext/utils.h>
  38 #include <gtkmm2ext/choice.h>
  39 #include <gtkmm2ext/popup.h>
  40
  41 #include "ardour/audio_track.h"
  42 #include "ardour/audioregion.h"
  43 #include "ardour/dB.h"
  44 #include "ardour/location.h"
  45 #include "ardour/midi_region.h"
  46 #include "ardour/operations.h"
  47 #include "ardour/playlist_factory.h"
  48 #include "ardour/quantize.h"
  49 #include "ardour/region_factory.h"
  50 #include "ardour/reverse.h"
  51 #include "ardour/route_group.h"
  52 #include "ardour/session.h"
  53 #include "ardour/session_playlists.h"
  54 #include "ardour/strip_silence.h"
  55 #include "ardour/transient_detector.h"
  56 #include "ardour/utils.h"
  57
  58 #include "ardour_ui.h"
  59 #include "debug.h"
  60 #include "editor.h"
  61 #include "time_axis_view.h"
  62 #include "route_time_axis.h"
  63 #include "audio_time_axis.h"
  64 #include "automation_time_axis.h"
  65 #include "streamview.h"
  66 #include "audio_streamview.h"
  67 #include "audio_region_view.h"
  68 #include "midi_region_view.h"
  69 #include "rgb_macros.h"
  70 #include "selection_templates.h"
  71 #include "selection.h"
  72 #include "editing.h"
  73 #include "gtk-custom-hruler.h"
  74 #include "gui_thread.h"
  75 #include "keyboard.h"
  76 #include "utils.h"
  77 #include "editor_drag.h"
  78 #include "strip_silence_dialog.h"
  79 #include "editor_routes.h"
  80 #include "editor_regions.h"
  81 #include "quantize_dialog.h"
  82 #include "interthread_progress_window.h"
  83 #include "insert_time_dialog.h"
  84 #include "normalize_dialog.h"
  85 #include "editor_cursors.h"
  86 #include "mouse_cursors.h"
  87 #include "patch_change_dialog.h"
  88 #include "transpose_dialog.h"
  89
  90 #include "i18n.h"
  91
  92 using namespace std;
  93 using namespace ARDOUR;
  94 using namespace PBD;
  95 using namespace Gtk;
  96 using namespace Gtkmm2ext;
  97 using namespace Editing;
  98 using Gtkmm2ext::Keyboard;
  99
 100 /***********************************************************************
 101   Editor operations
 102  ***********************************************************************/
 103
 104 void
 105 Editor::undo (uint32_t n)
 106 {
 107         if (_drags->active ()) {
 108                 _drags->abort ();
 109         }
 110
 111         if (_session) {
 112                 _session->undo (n);
 113         }
 114 }
 115
 116 void
 117 Editor::redo (uint32_t n)
 118 {
 119         if (_drags->active ()) {
 120                 _drags->abort ();
 121         }
 122
 123         if (_session) {
 124                 _session->redo (n);
 125         }
 126 }
 127
 128 void
 129 Editor::split_regions_at (framepos_t where, RegionSelection& regions)
 130 {
 131         bool frozen = false;
 132
 133         list <boost::shared_ptr<Playlist > > used_playlists;
 134
 135         if (regions.empty()) {
 136                 return;
 137         }
 138
 139         begin_reversible_command (_("split"));
 140
 141         // if splitting a single region, and snap-to is using
 142         // region boundaries, don't pay attention to them
 143
 144         if (regions.size() == 1) {
 145                 switch (_snap_type) {
 146                 case SnapToRegionStart:
 147                 case SnapToRegionSync:
 148                 case SnapToRegionEnd:
 149                         break;
 150                 default:
 151                         snap_to (where);
 152                 }
 153         } else {
 154                 snap_to (where);
 155
 156                 frozen = true;
 157                 EditorFreeze(); /* Emit Signal */
 158         }
 159
 160         for (RegionSelection::iterator a = regions.begin(); a != regions.end(); ) {
 161
 162                 RegionSelection::iterator tmp;
 163
 164                 /* XXX this test needs to be more complicated, to make sure we really
 165                    have something to split.
 166                 */
 167
 168                 if (!(*a)->region()->covers (where)) {
 169                         ++a;
 170                         continue;
 171                 }
 172
 173                 tmp = a;
 174                 ++tmp;
 175
 176                 boost::shared_ptr<Playlist> pl = (*a)->region()->playlist();
 177
 178                 if (!pl) {
 179                         a = tmp;
 180                         continue;
 181                 }
 182
 183                 if (!pl->frozen()) {
 184                         /* we haven't seen this playlist before */
 185
 186                         /* remember used playlists so we can thaw them later */
 187                         used_playlists.push_back(pl);
 188                         pl->freeze();
 189                 }
 190
 191                 if (pl) {
 192                         pl->clear_changes ();
 193                         pl->split_region ((*a)->region(), where);
 194                         _session->add_command (new StatefulDiffCommand (pl));
 195                 }
 196
 197                 a = tmp;
 198         }
 199
 200         while (used_playlists.size() > 0) {
 201                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
 202                 (*i)->thaw();
 203                 used_playlists.pop_front();
 204         }
 205
 206         commit_reversible_command ();
 207
 208         if (frozen){
 209                 EditorThaw(); /* Emit Signal */
 210         }
 211 }
 212
 213 /** Move one extreme of the current range selection.  If more than one range is selected,
 214  *  the start of the earliest range or the end of the latest range is moved.
 215  *
 216  *  @param move_end true to move the end of the current range selection, false to move
 217  *  the start.
 218  *  @param next true to move the extreme to the next region boundary, false to move to
 219  *  the previous.
 220  */
 221 void
 222 Editor::move_range_selection_start_or_end_to_region_boundary (bool move_end, bool next)
 223 {
 224         if (selection->time.start() == selection->time.end_frame()) {
 225                 return;
 226         }
 227
 228         framepos_t start = selection->time.start ();
 229         framepos_t end = selection->time.end_frame ();
 230
 231         /* the position of the thing we may move */
 232         framepos_t pos = move_end ? end : start;
 233         int dir = next ? 1 : -1;
 234
 235         /* so we don't find the current region again */
 236         if (dir > 0 || pos > 0) {
 237                 pos += dir;
 238         }
 239
 240         framepos_t const target = get_region_boundary (pos, dir, true, false);
 241         if (target < 0) {
 242                 return;
 243         }
 244
 245         if (move_end) {
 246                 end = target;
 247         } else {
 248                 start = target;
 249         }
 250
 251         if (end < start) {
 252                 return;
 253         }
 254
 255         begin_reversible_command (_("alter selection"));
 256         selection->set_preserving_all_ranges (start, end);
 257         commit_reversible_command ();
 258 }
 259
 260 bool
 261 Editor::nudge_forward_release (GdkEventButton* ev)
 262 {
 263         if (ev->state & Keyboard::PrimaryModifier) {
 264                 nudge_forward (false, true);
 265         } else {
 266                 nudge_forward (false, false);
 267         }
 268         return false;
 269 }
 270
 271 bool
 272 Editor::nudge_backward_release (GdkEventButton* ev)
 273 {
 274         if (ev->state & Keyboard::PrimaryModifier) {
 275                 nudge_backward (false, true);
 276         } else {
 277                 nudge_backward (false, false);
 278         }
 279         return false;
 280 }
 281
 282
 283 void
 284 Editor::nudge_forward (bool next, bool force_playhead)
 285 {
 286         framepos_t distance;
 287         framepos_t next_distance;
 288
 289         if (!_session) {
 290                 return;
 291         }
 292
 293         RegionSelection rs = get_regions_from_selection_and_entered ();
 294
 295         if (!force_playhead && !rs.empty()) {
 296
 297                 begin_reversible_command (_("nudge regions forward"));
 298
 299                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 300                         boost::shared_ptr<Region> r ((*i)->region());
 301
 302                         distance = get_nudge_distance (r->position(), next_distance);
 303
 304                         if (next) {
 305                                 distance = next_distance;
 306                         }
 307
 308                         r->clear_changes ();
 309                         r->set_position (r->position() + distance);
 310                         _session->add_command (new StatefulDiffCommand (r));
 311                 }
 312
 313                 commit_reversible_command ();
 314
 315
 316         } else if (!force_playhead && !selection->markers.empty()) {
 317
 318                 bool is_start;
 319
 320                 begin_reversible_command (_("nudge location forward"));
 321
 322                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 323
 324                         Location* loc = find_location_from_marker ((*i), is_start);
 325
 326                         if (loc) {
 327
 328                                 XMLNode& before (loc->get_state());
 329
 330                                 if (is_start) {
 331                                         distance = get_nudge_distance (loc->start(), next_distance);
 332                                         if (next) {
 333                                                 distance = next_distance;
 334                                         }
 335                                         if (max_framepos - distance > loc->start() + loc->length()) {
 336                                                 loc->set_start (loc->start() + distance);
 337                                         } else {
 338                                                 loc->set_start (max_framepos - loc->length());
 339                                         }
 340                                 } else {
 341                                         distance = get_nudge_distance (loc->end(), next_distance);
 342                                         if (next) {
 343                                                 distance = next_distance;
 344                                         }
 345                                         if (max_framepos - distance > loc->end()) {
 346                                                 loc->set_end (loc->end() + distance);
 347                                         } else {
 348                                                 loc->set_end (max_framepos);
 349                                         }
 350                                 }
 351                                 XMLNode& after (loc->get_state());
 352                                 _session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 353                         }
 354                 }
 355
 356                 commit_reversible_command ();
 357
 358         } else {
 359                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 360                 _session->request_locate (playhead_cursor->current_frame + distance);
 361         }
 362 }
 363
 364 void
 365 Editor::nudge_backward (bool next, bool force_playhead)
 366 {
 367         framepos_t distance;
 368         framepos_t next_distance;
 369
 370         if (!_session) {
 371                 return;
 372         }
 373
 374         RegionSelection rs = get_regions_from_selection_and_entered ();
 375
 376         if (!force_playhead && !rs.empty()) {
 377
 378                 begin_reversible_command (_("nudge regions backward"));
 379
 380                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 381                         boost::shared_ptr<Region> r ((*i)->region());
 382
 383                         distance = get_nudge_distance (r->position(), next_distance);
 384
 385                         if (next) {
 386                                 distance = next_distance;
 387                         }
 388
 389                         r->clear_changes ();
 390
 391                         if (r->position() > distance) {
 392                                 r->set_position (r->position() - distance);
 393                         } else {
 394                                 r->set_position (0);
 395                         }
 396                         _session->add_command (new StatefulDiffCommand (r));
 397                 }
 398
 399                 commit_reversible_command ();
 400
 401         } else if (!force_playhead && !selection->markers.empty()) {
 402
 403                 bool is_start;
 404
 405                 begin_reversible_command (_("nudge location forward"));
 406
 407                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 408
 409                         Location* loc = find_location_from_marker ((*i), is_start);
 410
 411                         if (loc) {
 412
 413                                 XMLNode& before (loc->get_state());
 414
 415                                 if (is_start) {
 416                                         distance = get_nudge_distance (loc->start(), next_distance);
 417                                         if (next) {
 418                                                 distance = next_distance;
 419                                         }
 420                                         if (distance < loc->start()) {
 421                                                 loc->set_start (loc->start() - distance);
 422                                         } else {
 423                                                 loc->set_start (0);
 424                                         }
 425                                 } else {
 426                                         distance = get_nudge_distance (loc->end(), next_distance);
 427
 428                                         if (next) {
 429                                                 distance = next_distance;
 430                                         }
 431
 432                                         if (distance < loc->end() - loc->length()) {
 433                                                 loc->set_end (loc->end() - distance);
 434                                         } else {
 435                                                 loc->set_end (loc->length());
 436                                         }
 437                                 }
 438
 439                                 XMLNode& after (loc->get_state());
 440                                 _session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 441                         }
 442                 }
 443
 444                 commit_reversible_command ();
 445
 446         } else {
 447
 448                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 449
 450                 if (playhead_cursor->current_frame > distance) {
 451                         _session->request_locate (playhead_cursor->current_frame - distance);
 452                 } else {
 453                         _session->goto_start();
 454                 }
 455         }
 456 }
 457
 458 void
 459 Editor::nudge_forward_capture_offset ()
 460 {
 461         RegionSelection rs = get_regions_from_selection_and_entered ();
 462
 463         if (!_session || rs.empty()) {
 464                 return;
 465         }
 466
 467         begin_reversible_command (_("nudge forward"));
 468
 469         framepos_t const distance = _session->worst_output_latency();
 470
 471         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 472                 boost::shared_ptr<Region> r ((*i)->region());
 473
 474                 r->clear_changes ();
 475                 r->set_position (r->position() + distance);
 476                 _session->add_command(new StatefulDiffCommand (r));
 477         }
 478
 479         commit_reversible_command ();
 480 }
 481
 482 void
 483 Editor::nudge_backward_capture_offset ()
 484 {
 485         RegionSelection rs = get_regions_from_selection_and_entered ();
 486
 487         if (!_session || rs.empty()) {
 488                 return;
 489         }
 490
 491         begin_reversible_command (_("nudge forward"));
 492
 493         framepos_t const distance = _session->worst_output_latency();
 494
 495         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 496                 boost::shared_ptr<Region> r ((*i)->region());
 497
 498                 r->clear_changes ();
 499
 500                 if (r->position() > distance) {
 501                         r->set_position (r->position() - distance);
 502                 } else {
 503                         r->set_position (0);
 504                 }
 505                 _session->add_command(new StatefulDiffCommand (r));
 506         }
 507
 508         commit_reversible_command ();
 509 }
 510
 511 /* DISPLAY MOTION */
 512
 513 void
 514 Editor::move_to_start ()
 515 {
 516         _session->goto_start ();
 517 }
 518
 519 void
 520 Editor::move_to_end ()
 521 {
 522
 523         _session->request_locate (_session->current_end_frame());
 524 }
 525
 526 void
 527 Editor::build_region_boundary_cache ()
 528 {
 529         framepos_t pos = 0;
 530         vector<RegionPoint> interesting_points;
 531         boost::shared_ptr<Region> r;
 532         TrackViewList tracks;
 533         bool at_end = false;
 534
 535         region_boundary_cache.clear ();
 536
 537         if (_session == 0) {
 538                 return;
 539         }
 540
 541         switch (_snap_type) {
 542         case SnapToRegionStart:
 543                 interesting_points.push_back (Start);
 544                 break;
 545         case SnapToRegionEnd:
 546                 interesting_points.push_back (End);
 547                 break;
 548         case SnapToRegionSync:
 549                 interesting_points.push_back (SyncPoint);
 550                 break;
 551         case SnapToRegionBoundary:
 552                 interesting_points.push_back (Start);
 553                 interesting_points.push_back (End);
 554                 break;
 555         default:
 556                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), _snap_type) << endmsg;
 557                 /*NOTREACHED*/
 558                 return;
 559         }
 560
 561         TimeAxisView *ontrack = 0;
 562         TrackViewList tlist;
 563
 564         if (!selection->tracks.empty()) {
 565                 tlist = selection->tracks.filter_to_unique_playlists ();
 566         } else {
 567                 tlist = track_views.filter_to_unique_playlists ();
 568         }
 569
 570         while (pos < _session->current_end_frame() && !at_end) {
 571
 572                 framepos_t rpos;
 573                 framepos_t lpos = max_framepos;
 574
 575                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 576
 577                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 578                                 if (*p == interesting_points.back()) {
 579                                         at_end = true;
 580                                 }
 581                                 /* move to next point type */
 582                                 continue;
 583                         }
 584
 585                         switch (*p) {
 586                         case Start:
 587                                 rpos = r->first_frame();
 588                                 break;
 589
 590                         case End:
 591                                 rpos = r->last_frame();
 592                                 break;
 593
 594                         case SyncPoint:
 595                                 rpos = r->sync_position ();
 596                                 break;
 597
 598                         default:
 599                                 break;
 600                         }
 601
 602                         float speed = 1.0f;
 603                         RouteTimeAxisView *rtav;
 604
 605                         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 606                                 if (rtav->track() != 0) {
 607                                         speed = rtav->track()->speed();
 608                                 }
 609                         }
 610
 611                         rpos = track_frame_to_session_frame (rpos, speed);
 612
 613                         if (rpos < lpos) {
 614                                 lpos = rpos;
 615                         }
 616
 617                         /* prevent duplicates, but we don't use set<> because we want to be able
 618                            to sort later.
 619                         */
 620
 621                         vector<framepos_t>::iterator ri;
 622
 623                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 624                                 if (*ri == rpos) {
 625                                         break;
 626                                 }
 627                         }
 628
 629                         if (ri == region_boundary_cache.end()) {
 630                                 region_boundary_cache.push_back (rpos);
 631                         }
 632                 }
 633
 634                 pos = lpos + 1;
 635         }
 636
 637         /* finally sort to be sure that the order is correct */
 638
 639         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 640 }
 641
 642 boost::shared_ptr<Region>
 643 Editor::find_next_region (framepos_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 644 {
 645         TrackViewList::iterator i;
 646         framepos_t closest = max_framepos;
 647         boost::shared_ptr<Region> ret;
 648         framepos_t rpos = 0;
 649
 650         float track_speed;
 651         framepos_t track_frame;
 652         RouteTimeAxisView *rtav;
 653
 654         for (i = tracks.begin(); i != tracks.end(); ++i) {
 655
 656                 framecnt_t distance;
 657                 boost::shared_ptr<Region> r;
 658
 659                 track_speed = 1.0f;
 660                 if ( (rtav = dynamic_cast<RouteTimeAxisView*>(*i)) != 0 ) {
 661                         if (rtav->track()!=0)
 662                                 track_speed = rtav->track()->speed();
 663                 }
 664
 665                 track_frame = session_frame_to_track_frame(frame, track_speed);
 666
 667                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 668                         continue;
 669                 }
 670
 671                 switch (point) {
 672                 case Start:
 673                         rpos = r->first_frame ();
 674                         break;
 675
 676                 case End:
 677                         rpos = r->last_frame ();
 678                         break;
 679
 680                 case SyncPoint:
 681                         rpos = r->sync_position ();
 682                         break;
 683                 }
 684
 685                 // rpos is a "track frame", converting it to "_session frame"
 686                 rpos = track_frame_to_session_frame(rpos, track_speed);
 687
 688                 if (rpos > frame) {
 689                         distance = rpos - frame;
 690                 } else {
 691                         distance = frame - rpos;
 692                 }
 693
 694                 if (distance < closest) {
 695                         closest = distance;
 696                         if (ontrack != 0)
 697                                 *ontrack = (*i);
 698                         ret = r;
 699                 }
 700         }
 701
 702         return ret;
 703 }
 704
 705 framepos_t
 706 Editor::find_next_region_boundary (framepos_t pos, int32_t dir, const TrackViewList& tracks)
 707 {
 708         framecnt_t distance = max_framepos;
 709         framepos_t current_nearest = -1;
 710
 711         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 712                 framepos_t contender;
 713                 framecnt_t d;
 714
 715                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 716
 717                 if (!rtv) {
 718                         continue;
 719                 }
 720
 721                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 722                         continue;
 723                 }
 724
 725                 d = ::llabs (pos - contender);
 726
 727                 if (d < distance) {
 728                         current_nearest = contender;
 729                         distance = d;
 730                 }
 731         }
 732
 733         return current_nearest;
 734 }
 735
 736 framepos_t
 737 Editor::get_region_boundary (framepos_t pos, int32_t dir, bool with_selection, bool only_onscreen)
 738 {
 739         framepos_t target;
 740         TrackViewList tvl;
 741
 742         if (with_selection && Config->get_region_boundaries_from_selected_tracks()) {
 743
 744                 if (!selection->tracks.empty()) {
 745
 746                         target = find_next_region_boundary (pos, dir, selection->tracks);
 747
 748                 } else {
 749
 750                         if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 751                                 get_onscreen_tracks (tvl);
 752                                 target = find_next_region_boundary (pos, dir, tvl);
 753                         } else {
 754                                 target = find_next_region_boundary (pos, dir, track_views);
 755                         }
 756                 }
 757
 758         } else {
 759
 760                 if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 761                         get_onscreen_tracks (tvl);
 762                         target = find_next_region_boundary (pos, dir, tvl);
 763                 } else {
 764                         target = find_next_region_boundary (pos, dir, track_views);
 765                 }
 766         }
 767
 768         return target;
 769 }
 770
 771 void
 772 Editor::cursor_to_region_boundary (bool with_selection, int32_t dir)
 773 {
 774         framepos_t pos = playhead_cursor->current_frame;
 775         framepos_t target;
 776
 777         if (!_session) {
 778                 return;
 779         }
 780
 781         // so we don't find the current region again..
 782         if (dir > 0 || pos > 0) {
 783                 pos += dir;
 784         }
 785
 786         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
 787                 return;
 788         }
 789
 790         _session->request_locate (target);
 791 }
 792
 793 void
 794 Editor::cursor_to_next_region_boundary (bool with_selection)
 795 {
 796         cursor_to_region_boundary (with_selection, 1);
 797 }
 798
 799 void
 800 Editor::cursor_to_previous_region_boundary (bool with_selection)
 801 {
 802         cursor_to_region_boundary (with_selection, -1);
 803 }
 804
 805 void
 806 Editor::cursor_to_region_point (EditorCursor* cursor, RegionPoint point, int32_t dir)
 807 {
 808         boost::shared_ptr<Region> r;
 809         framepos_t pos = cursor->current_frame;
 810
 811         if (!_session) {
 812                 return;
 813         }
 814
 815         TimeAxisView *ontrack = 0;
 816
 817         // so we don't find the current region again..
 818         if (dir>0 || pos>0)
 819                 pos+=dir;
 820
 821         if (!selection->tracks.empty()) {
 822
 823                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 824
 825         } else if (clicked_axisview) {
 826
 827                 TrackViewList t;
 828                 t.push_back (clicked_axisview);
 829
 830                 r = find_next_region (pos, point, dir, t, &ontrack);
 831
 832         } else {
 833
 834                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 835         }
 836
 837         if (r == 0) {
 838                 return;
 839         }
 840
 841         switch (point) {
 842         case Start:
 843                 pos = r->first_frame ();
 844                 break;
 845
 846         case End:
 847                 pos = r->last_frame ();
 848                 break;
 849
 850         case SyncPoint:
 851                 pos = r->sync_position ();
 852                 break;
 853         }
 854
 855         float speed = 1.0f;
 856         RouteTimeAxisView *rtav;
 857
 858         if ( ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 859                 if (rtav->track() != 0) {
 860                         speed = rtav->track()->speed();
 861                 }
 862         }
 863
 864         pos = track_frame_to_session_frame(pos, speed);
 865
 866         if (cursor == playhead_cursor) {
 867                 _session->request_locate (pos);
 868         } else {
 869                 cursor->set_position (pos);
 870         }
 871 }
 872
 873 void
 874 Editor::cursor_to_next_region_point (EditorCursor* cursor, RegionPoint point)
 875 {
 876         cursor_to_region_point (cursor, point, 1);
 877 }
 878
 879 void
 880 Editor::cursor_to_previous_region_point (EditorCursor* cursor, RegionPoint point)
 881 {
 882         cursor_to_region_point (cursor, point, -1);
 883 }
 884
 885 void
 886 Editor::cursor_to_selection_start (EditorCursor *cursor)
 887 {
 888         framepos_t pos = 0;
 889
 890         switch (mouse_mode) {
 891         case MouseObject:
 892                 if (!selection->regions.empty()) {
 893                         pos = selection->regions.start();
 894                 }
 895                 break;
 896
 897         case MouseRange:
 898                 if (!selection->time.empty()) {
 899                         pos = selection->time.start ();
 900                 }
 901                 break;
 902
 903         default:
 904                 return;
 905         }
 906
 907         if (cursor == playhead_cursor) {
 908                 _session->request_locate (pos);
 909         } else {
 910                 cursor->set_position (pos);
 911         }
 912 }
 913
 914 void
 915 Editor::cursor_to_selection_end (EditorCursor *cursor)
 916 {
 917         framepos_t pos = 0;
 918
 919         switch (mouse_mode) {
 920         case MouseObject:
 921                 if (!selection->regions.empty()) {
 922                         pos = selection->regions.end_frame();
 923                 }
 924                 break;
 925
 926         case MouseRange:
 927                 if (!selection->time.empty()) {
 928                         pos = selection->time.end_frame ();
 929                 }
 930                 break;
 931
 932         default:
 933                 return;
 934         }
 935
 936         if (cursor == playhead_cursor) {
 937                 _session->request_locate (pos);
 938         } else {
 939                 cursor->set_position (pos);
 940         }
 941 }
 942
 943 void
 944 Editor::selected_marker_to_region_boundary (bool with_selection, int32_t dir)
 945 {
 946         framepos_t target;
 947         Location* loc;
 948         bool ignored;
 949
 950         if (!_session) {
 951                 return;
 952         }
 953
 954         if (selection->markers.empty()) {
 955                 framepos_t mouse;
 956                 bool ignored;
 957
 958                 if (!mouse_frame (mouse, ignored)) {
 959                         return;
 960                 }
 961
 962                 add_location_mark (mouse);
 963         }
 964
 965         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
 966                 return;
 967         }
 968
 969         framepos_t pos = loc->start();
 970
 971         // so we don't find the current region again..
 972         if (dir > 0 || pos > 0) {
 973                 pos += dir;
 974         }
 975
 976         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
 977                 return;
 978         }
 979
 980         loc->move_to (target);
 981 }
 982
 983 void
 984 Editor::selected_marker_to_next_region_boundary (bool with_selection)
 985 {
 986         selected_marker_to_region_boundary (with_selection, 1);
 987 }
 988
 989 void
 990 Editor::selected_marker_to_previous_region_boundary (bool with_selection)
 991 {
 992         selected_marker_to_region_boundary (with_selection, -1);
 993 }
 994
 995 void
 996 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
 997 {
 998         boost::shared_ptr<Region> r;
 999         framepos_t pos;
1000         Location* loc;
1001         bool ignored;
1002
1003         if (!_session || selection->markers.empty()) {
1004                 return;
1005         }
1006
1007         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1008                 return;
1009         }
1010
1011         TimeAxisView *ontrack = 0;
1012
1013         pos = loc->start();
1014
1015         // so we don't find the current region again..
1016         if (dir>0 || pos>0)
1017                 pos+=dir;
1018
1019         if (!selection->tracks.empty()) {
1020
1021                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1022
1023         } else {
1024
1025                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1026         }
1027
1028         if (r == 0) {
1029                 return;
1030         }
1031
1032         switch (point) {
1033         case Start:
1034                 pos = r->first_frame ();
1035                 break;
1036
1037         case End:
1038                 pos = r->last_frame ();
1039                 break;
1040
1041         case SyncPoint:
1042                 pos = r->adjust_to_sync (r->first_frame());
1043                 break;
1044         }
1045
1046         float speed = 1.0f;
1047         RouteTimeAxisView *rtav;
1048
1049         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0) {
1050                 if (rtav->track() != 0) {
1051                         speed = rtav->track()->speed();
1052                 }
1053         }
1054
1055         pos = track_frame_to_session_frame(pos, speed);
1056
1057         loc->move_to (pos);
1058 }
1059
1060 void
1061 Editor::selected_marker_to_next_region_point (RegionPoint point)
1062 {
1063         selected_marker_to_region_point (point, 1);
1064 }
1065
1066 void
1067 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1068 {
1069         selected_marker_to_region_point (point, -1);
1070 }
1071
1072 void
1073 Editor::selected_marker_to_selection_start ()
1074 {
1075         framepos_t pos = 0;
1076         Location* loc;
1077         bool ignored;
1078
1079         if (!_session || selection->markers.empty()) {
1080                 return;
1081         }
1082
1083         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1084                 return;
1085         }
1086
1087         switch (mouse_mode) {
1088         case MouseObject:
1089                 if (!selection->regions.empty()) {
1090                         pos = selection->regions.start();
1091                 }
1092                 break;
1093
1094         case MouseRange:
1095                 if (!selection->time.empty()) {
1096                         pos = selection->time.start ();
1097                 }
1098                 break;
1099
1100         default:
1101                 return;
1102         }
1103
1104         loc->move_to (pos);
1105 }
1106
1107 void
1108 Editor::selected_marker_to_selection_end ()
1109 {
1110         framepos_t pos = 0;
1111         Location* loc;
1112         bool ignored;
1113
1114         if (!_session || selection->markers.empty()) {
1115                 return;
1116         }
1117
1118         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1119                 return;
1120         }
1121
1122         switch (mouse_mode) {
1123         case MouseObject:
1124                 if (!selection->regions.empty()) {
1125                         pos = selection->regions.end_frame();
1126                 }
1127                 break;
1128
1129         case MouseRange:
1130                 if (!selection->time.empty()) {
1131                         pos = selection->time.end_frame ();
1132                 }
1133                 break;
1134
1135         default:
1136                 return;
1137         }
1138
1139         loc->move_to (pos);
1140 }
1141
1142 void
1143 Editor::scroll_playhead (bool forward)
1144 {
1145         framepos_t pos = playhead_cursor->current_frame;
1146         framecnt_t delta = (framecnt_t) floor (current_page_frames() / 0.8);
1147
1148         if (forward) {
1149                 if (pos == max_framepos) {
1150                         return;
1151                 }
1152
1153                 if (pos < max_framepos - delta) {
1154                         pos += delta ;
1155                 } else {
1156                         pos = max_framepos;
1157                 }
1158
1159         } else {
1160
1161                 if (pos == 0) {
1162                         return;
1163                 }
1164
1165                 if (pos > delta) {
1166                         pos -= delta;
1167                 } else {
1168                         pos = 0;
1169                 }
1170         }
1171
1172         _session->request_locate (pos);
1173 }
1174
1175 void
1176 Editor::cursor_align (bool playhead_to_edit)
1177 {
1178         if (!_session) {
1179                 return;
1180         }
1181
1182         if (playhead_to_edit) {
1183
1184                 if (selection->markers.empty()) {
1185                         return;
1186                 }
1187
1188                 _session->request_locate (selection->markers.front()->position(), _session->transport_rolling());
1189
1190         } else {
1191                 /* move selected markers to playhead */
1192
1193                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1194                         bool ignored;
1195
1196                         Location* loc = find_location_from_marker (*i, ignored);
1197
1198                         if (loc->is_mark()) {
1199                                 loc->set_start (playhead_cursor->current_frame);
1200                         } else {
1201                                 loc->set (playhead_cursor->current_frame,
1202                                           playhead_cursor->current_frame + loc->length());
1203                         }
1204                 }
1205         }
1206 }
1207
1208 void
1209 Editor::scroll_backward (float pages)
1210 {
1211         framepos_t const one_page = (framepos_t) rint (_canvas_width * frames_per_unit);
1212         framepos_t const cnt = (framepos_t) floor (pages * one_page);
1213
1214         framepos_t frame;
1215         if (leftmost_frame < cnt) {
1216                 frame = 0;
1217         } else {
1218                 frame = leftmost_frame - cnt;
1219         }
1220
1221         reset_x_origin (frame);
1222 }
1223
1224 void
1225 Editor::scroll_forward (float pages)
1226 {
1227         framepos_t const one_page = (framepos_t) rint (_canvas_width * frames_per_unit);
1228         framepos_t const cnt = (framepos_t) floor (pages * one_page);
1229
1230         framepos_t frame;
1231         if (max_framepos - cnt < leftmost_frame) {
1232                 frame = max_framepos - cnt;
1233         } else {
1234                 frame = leftmost_frame + cnt;
1235         }
1236
1237         reset_x_origin (frame);
1238 }
1239
1240 void
1241 Editor::scroll_tracks_down ()
1242 {
1243         double vert_value = vertical_adjustment.get_value() + vertical_adjustment.get_page_size();
1244         if (vert_value > vertical_adjustment.get_upper() - _canvas_height) {
1245                 vert_value = vertical_adjustment.get_upper() - _canvas_height;
1246         }
1247
1248         vertical_adjustment.set_value (vert_value);
1249 }
1250
1251 void
1252 Editor::scroll_tracks_up ()
1253 {
1254         vertical_adjustment.set_value (vertical_adjustment.get_value() - vertical_adjustment.get_page_size());
1255 }
1256
1257 void
1258 Editor::scroll_tracks_down_line ()
1259 {
1260         double vert_value = vertical_adjustment.get_value() + 60;
1261
1262         if (vert_value > vertical_adjustment.get_upper() - _canvas_height) {
1263                 vert_value = vertical_adjustment.get_upper() - _canvas_height;
1264         }
1265
1266         vertical_adjustment.set_value (vert_value);
1267 }
1268
1269 void
1270 Editor::scroll_tracks_up_line ()
1271 {
1272         reset_y_origin (vertical_adjustment.get_value() - 60);
1273 }
1274
1275 /* ZOOM */
1276
1277 void
1278 Editor::tav_zoom_step (bool coarser)
1279 {
1280         ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_step, coarser)
1281
1282         _routes->suspend_redisplay ();
1283
1284         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1285                 TimeAxisView *tv = (static_cast<TimeAxisView*>(*i));
1286                         tv->step_height (coarser);
1287         }
1288
1289         _routes->resume_redisplay ();
1290 }
1291
1292 void
1293 Editor::temporal_zoom_step (bool coarser)
1294 {
1295         ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_step, coarser)
1296
1297         double nfpu;
1298
1299         nfpu = frames_per_unit;
1300
1301         if (coarser) {
1302                 nfpu *= 1.61803399;
1303         } else {
1304                 nfpu = max(1.0,(nfpu/1.61803399));
1305         }
1306
1307         temporal_zoom (nfpu);
1308 }
1309
1310 void
1311 Editor::temporal_zoom (gdouble fpu)
1312 {
1313         if (!_session) return;
1314
1315         framepos_t current_page = current_page_frames();
1316         framepos_t current_leftmost = leftmost_frame;
1317         framepos_t current_rightmost;
1318         framepos_t current_center;
1319         framepos_t new_page_size;
1320         framepos_t half_page_size;
1321         framepos_t leftmost_after_zoom = 0;
1322         framepos_t where;
1323         bool in_track_canvas;
1324         double nfpu;
1325         double l;
1326
1327         /* XXX this limit is also in ::set_frames_per_unit() */
1328
1329         if (frames_per_unit <= 1.0 && fpu <= frames_per_unit) {
1330                 return;
1331         }
1332
1333         nfpu = fpu;
1334
1335         new_page_size = (framepos_t) floor (_canvas_width * nfpu);
1336         half_page_size = new_page_size / 2;
1337
1338         switch (zoom_focus) {
1339         case ZoomFocusLeft:
1340                 leftmost_after_zoom = current_leftmost;
1341                 break;
1342
1343         case ZoomFocusRight:
1344                 current_rightmost = leftmost_frame + current_page;
1345                 if (current_rightmost < new_page_size) {
1346                         leftmost_after_zoom = 0;
1347                 } else {
1348                         leftmost_after_zoom = current_rightmost - new_page_size;
1349                 }
1350                 break;
1351
1352         case ZoomFocusCenter:
1353                 current_center = current_leftmost + (current_page/2);
1354                 if (current_center < half_page_size) {
1355                         leftmost_after_zoom = 0;
1356                 } else {
1357                         leftmost_after_zoom = current_center - half_page_size;
1358                 }
1359                 break;
1360
1361         case ZoomFocusPlayhead:
1362                 /* centre playhead */
1363                 l = playhead_cursor->current_frame - (new_page_size * 0.5);
1364
1365                 if (l < 0) {
1366                         leftmost_after_zoom = 0;
1367                 } else if (l > max_framepos) {
1368                         leftmost_after_zoom = max_framepos - new_page_size;
1369                 } else {
1370                         leftmost_after_zoom = (framepos_t) l;
1371                 }
1372                 break;
1373
1374         case ZoomFocusMouse:
1375                 /* try to keep the mouse over the same point in the display */
1376
1377                 if (!mouse_frame (where, in_track_canvas)) {
1378                         /* use playhead instead */
1379                         where = playhead_cursor->current_frame;
1380
1381                         if (where < half_page_size) {
1382                                 leftmost_after_zoom = 0;
1383                         } else {
1384                                 leftmost_after_zoom = where - half_page_size;
1385                         }
1386
1387                 } else {
1388
1389                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1390
1391                         if (l < 0) {
1392                                 leftmost_after_zoom = 0;
1393                         } else if (l > max_framepos) {
1394                                 leftmost_after_zoom = max_framepos - new_page_size;
1395                         } else {
1396                                 leftmost_after_zoom = (framepos_t) l;
1397                         }
1398                 }
1399
1400                 break;
1401
1402         case ZoomFocusEdit:
1403                 /* try to keep the edit point in the same place */
1404                 where = get_preferred_edit_position ();
1405
1406                 if (where > 0) {
1407
1408                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1409
1410                         if (l < 0) {
1411                                 leftmost_after_zoom = 0;
1412                         } else if (l > max_framepos) {
1413                                 leftmost_after_zoom = max_framepos - new_page_size;
1414                         } else {
1415                                 leftmost_after_zoom = (framepos_t) l;
1416                         }
1417
1418                 } else {
1419                         /* edit point not defined */
1420                         return;
1421                 }
1422                 break;
1423
1424         }
1425
1426         // leftmost_after_zoom = min (leftmost_after_zoom, _session->current_end_frame());
1427
1428         reposition_and_zoom (leftmost_after_zoom, nfpu);
1429 }
1430
1431 void
1432 Editor::temporal_zoom_region (bool both_axes)
1433 {
1434         framepos_t start = max_framepos;
1435         framepos_t end = 0;
1436         set<TimeAxisView*> tracks;
1437
1438         RegionSelection rs = get_regions_from_selection_and_entered ();
1439
1440         if (rs.empty()) {
1441                 return;
1442         }
1443
1444         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
1445
1446                 if ((*i)->region()->position() < start) {
1447                         start = (*i)->region()->position();
1448                 }
1449
1450                 if ((*i)->region()->last_frame() + 1 > end) {
1451                         end = (*i)->region()->last_frame() + 1;
1452                 }
1453
1454                 tracks.insert (&((*i)->get_time_axis_view()));
1455         }
1456
1457         /* now comes an "interesting" hack ... make sure we leave a little space
1458            at each end of the editor so that the zoom doesn't fit the region
1459            precisely to the screen.
1460         */
1461
1462         GdkScreen* screen = gdk_screen_get_default ();
1463         gint pixwidth = gdk_screen_get_width (screen);
1464         gint mmwidth = gdk_screen_get_width_mm (screen);
1465         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1466         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1467
1468         if ((start == 0 && end == 0) || end < start) {
1469                 return;
1470         }
1471
1472         framepos_t range = end - start;
1473         double new_fpu = (double)range / (double)_canvas_width;
1474         framepos_t extra_samples = (framepos_t) floor (one_centimeter_in_pixels * new_fpu);
1475
1476         if (start > extra_samples) {
1477                 start -= extra_samples;
1478         } else {
1479                 start = 0;
1480         }
1481
1482         if (max_framepos - extra_samples > end) {
1483                 end += extra_samples;
1484         } else {
1485                 end = max_framepos;
1486         }
1487
1488         if (both_axes) {
1489                 /* save visual state with track states included, and prevent
1490                    set_frames_per_unit() from doing it again.
1491                 */
1492                 undo_visual_stack.push_back (current_visual_state(true));
1493                 no_save_visual = true;
1494         }
1495
1496         temporal_zoom_by_frame (start, end, "zoom to region");
1497
1498         if (both_axes) {
1499                 uint32_t per_track_height = (uint32_t) floor ((_canvas_height - canvas_timebars_vsize - 10.0) / tracks.size());
1500
1501                 /* set visible track heights appropriately */
1502
1503                 for (set<TimeAxisView*>::iterator t = tracks.begin(); t != tracks.end(); ++t) {
1504                         (*t)->set_height (per_track_height);
1505                 }
1506
1507                 /* hide irrelevant tracks */
1508
1509                 _routes->suspend_redisplay ();
1510
1511                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1512                         if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
1513                                 hide_track_in_display (*i);
1514                         }
1515                 }
1516
1517                 _routes->resume_redisplay ();
1518
1519                 vertical_adjustment.set_value (0.0);
1520                 no_save_visual = false;
1521         }
1522
1523         redo_visual_stack.push_back (current_visual_state());
1524 }
1525
1526 void
1527 Editor::zoom_to_region (bool both_axes)
1528 {
1529         temporal_zoom_region (both_axes);
1530 }
1531
1532 void
1533 Editor::temporal_zoom_selection ()
1534 {
1535         if (!selection) return;
1536
1537         if (selection->time.empty()) {
1538                 return;
1539         }
1540
1541         framepos_t start = selection->time[clicked_selection].start;
1542         framepos_t end = selection->time[clicked_selection].end;
1543
1544         temporal_zoom_by_frame (start, end, "zoom to selection");
1545 }
1546
1547 void
1548 Editor::temporal_zoom_session ()
1549 {
1550         ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_session)
1551
1552         if (_session) {
1553                 framecnt_t const l = _session->current_end_frame() - _session->current_start_frame();
1554                 double s = _session->current_start_frame() - l * 0.01;
1555                 if (s < 0) {
1556                         s = 0;
1557                 }
1558                 framecnt_t const e = _session->current_end_frame() + l * 0.01;
1559                 temporal_zoom_by_frame (framecnt_t (s), e, "zoom to _session");
1560         }
1561 }
1562
1563 void
1564 Editor::temporal_zoom_by_frame (framepos_t start, framepos_t end, const string & /*op*/)
1565 {
1566         if (!_session) return;
1567
1568         if ((start == 0 && end == 0) || end < start) {
1569                 return;
1570         }
1571
1572         framepos_t range = end - start;
1573
1574         double new_fpu = (double)range / (double)_canvas_width;
1575
1576         framepos_t new_page = (framepos_t) floor (_canvas_width * new_fpu);
1577         framepos_t middle = (framepos_t) floor( (double)start + ((double)range / 2.0f ));
1578         framepos_t new_leftmost = (framepos_t) floor( (double)middle - ((double)new_page/2.0f));
1579
1580         if (new_leftmost > middle) {
1581                 new_leftmost = 0;
1582         }
1583
1584         reposition_and_zoom (new_leftmost, new_fpu);
1585 }
1586
1587 void
1588 Editor::temporal_zoom_to_frame (bool coarser, framepos_t frame)
1589 {
1590         if (!_session) {
1591                 return;
1592         }
1593         double range_before = frame - leftmost_frame;
1594         double new_fpu;
1595
1596         new_fpu = frames_per_unit;
1597
1598         if (coarser) {
1599                 new_fpu *= 1.61803399;
1600                 range_before *= 1.61803399;
1601         } else {
1602                 new_fpu = max(1.0,(new_fpu/1.61803399));
1603                 range_before /= 1.61803399;
1604         }
1605
1606         if (new_fpu == frames_per_unit)  {
1607                 return;
1608         }
1609
1610         framepos_t new_leftmost = frame - (framepos_t)range_before;
1611
1612         if (new_leftmost > frame) {
1613                 new_leftmost = 0;
1614         }
1615
1616         if (new_leftmost < 0) {
1617                 new_leftmost = 0;
1618         }
1619
1620         reposition_and_zoom (new_leftmost, new_fpu);
1621 }
1622
1623
1624 bool
1625 Editor::choose_new_marker_name(string &name) {
1626
1627         if (!Config->get_name_new_markers()) {
1628                 /* don't prompt user for a new name */
1629                 return true;
1630         }
1631
1632         ArdourPrompter dialog (true);
1633
1634         dialog.set_prompt (_("New Name:"));
1635
1636         dialog.set_title (_("New Location Marker"));
1637
1638         dialog.set_name ("MarkNameWindow");
1639         dialog.set_size_request (250, -1);
1640         dialog.set_position (Gtk::WIN_POS_MOUSE);
1641
1642         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1643         dialog.set_initial_text (name);
1644
1645         dialog.show ();
1646
1647         switch (dialog.run ()) {
1648         case RESPONSE_ACCEPT:
1649                 break;
1650         default:
1651                 return false;
1652         }
1653
1654         dialog.get_result(name);
1655         return true;
1656
1657 }
1658
1659
1660 void
1661 Editor::add_location_from_selection ()
1662 {
1663         string rangename;
1664
1665         if (selection->time.empty()) {
1666                 return;
1667         }
1668
1669         if (_session == 0 || clicked_axisview == 0) {
1670                 return;
1671         }
1672
1673         framepos_t start = selection->time[clicked_selection].start;
1674         framepos_t end = selection->time[clicked_selection].end;
1675
1676         _session->locations()->next_available_name(rangename,"selection");
1677         Location *location = new Location (*_session, start, end, rangename, Location::IsRangeMarker);
1678
1679         _session->begin_reversible_command (_("add marker"));
1680         XMLNode &before = _session->locations()->get_state();
1681         _session->locations()->add (location, true);
1682         XMLNode &after = _session->locations()->get_state();
1683         _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1684         _session->commit_reversible_command ();
1685 }
1686
1687 void
1688 Editor::add_location_mark (framepos_t where)
1689 {
1690         string markername;
1691
1692         select_new_marker = true;
1693
1694         _session->locations()->next_available_name(markername,"mark");
1695         if (!choose_new_marker_name(markername)) {
1696                 return;
1697         }
1698         Location *location = new Location (*_session, where, where, markername, Location::IsMark);
1699         _session->begin_reversible_command (_("add marker"));
1700         XMLNode &before = _session->locations()->get_state();
1701         _session->locations()->add (location, true);
1702         XMLNode &after = _session->locations()->get_state();
1703         _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1704         _session->commit_reversible_command ();
1705 }
1706
1707 void
1708 Editor::add_location_from_playhead_cursor ()
1709 {
1710         add_location_mark (_session->audible_frame());
1711 }
1712
1713 /** Add a range marker around each selected region */
1714 void
1715 Editor::add_locations_from_region ()
1716 {
1717         RegionSelection rs = get_regions_from_selection_and_entered ();
1718
1719         if (rs.empty()) {
1720                 return;
1721         }
1722
1723         _session->begin_reversible_command (selection->regions.size () > 1 ? _("add markers") : _("add marker"));
1724         XMLNode &before = _session->locations()->get_state();
1725
1726         for (RegionSelection::iterator i = rs.begin (); i != rs.end (); ++i) {
1727
1728                 boost::shared_ptr<Region> region = (*i)->region ();
1729
1730                 Location *location = new Location (*_session, region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
1731
1732                 _session->locations()->add (location, true);
1733         }
1734
1735         XMLNode &after = _session->locations()->get_state();
1736         _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1737         _session->commit_reversible_command ();
1738 }
1739
1740 /** Add a single range marker around all selected regions */
1741 void
1742 Editor::add_location_from_region ()
1743 {
1744         RegionSelection rs = get_regions_from_selection_and_entered ();
1745
1746         if (rs.empty()) {
1747                 return;
1748         }
1749
1750         _session->begin_reversible_command (_("add marker"));
1751         XMLNode &before = _session->locations()->get_state();
1752
1753         string markername;
1754
1755         if (rs.size() > 1) {
1756                 _session->locations()->next_available_name(markername, "regions");
1757         } else {
1758                 RegionView* rv = *(rs.begin());
1759                 boost::shared_ptr<Region> region = rv->region();
1760                 markername = region->name();
1761         }
1762
1763         if (!choose_new_marker_name(markername)) {
1764                 return;
1765         }
1766
1767         // single range spanning all selected
1768         Location *location = new Location (*_session, selection->regions.start(), selection->regions.end_frame(), markername, Location::IsRangeMarker);
1769         _session->locations()->add (location, true);
1770
1771         XMLNode &after = _session->locations()->get_state();
1772         _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1773         _session->commit_reversible_command ();
1774 }
1775
1776 /* MARKS */
1777
1778 void
1779 Editor::jump_forward_to_mark ()
1780 {
1781         if (!_session) {
1782                 return;
1783         }
1784
1785         Location *location = _session->locations()->first_location_after (playhead_cursor->current_frame);
1786
1787         if (location) {
1788                 _session->request_locate (location->start(), _session->transport_rolling());
1789         } else {
1790                 _session->request_locate (_session->current_end_frame());
1791         }
1792 }
1793
1794 void
1795 Editor::jump_backward_to_mark ()
1796 {
1797         if (!_session) {
1798                 return;
1799         }
1800
1801         Location *location = _session->locations()->first_location_before (playhead_cursor->current_frame);
1802
1803         if (location) {
1804                 _session->request_locate (location->start(), _session->transport_rolling());
1805         } else {
1806                 _session->goto_start ();
1807         }
1808 }
1809
1810 void
1811 Editor::set_mark ()
1812 {
1813         framepos_t const pos = _session->audible_frame ();
1814
1815         string markername;
1816         _session->locations()->next_available_name (markername, "mark");
1817
1818         if (!choose_new_marker_name (markername)) {
1819                 return;
1820         }
1821
1822         _session->locations()->add (new Location (*_session, pos, 0, markername, Location::IsMark), true);
1823 }
1824
1825 void
1826 Editor::clear_markers ()
1827 {
1828         if (_session) {
1829                 _session->begin_reversible_command (_("clear markers"));
1830                 XMLNode &before = _session->locations()->get_state();
1831                 _session->locations()->clear_markers ();
1832                 XMLNode &after = _session->locations()->get_state();
1833                 _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1834                 _session->commit_reversible_command ();
1835         }
1836 }
1837
1838 void
1839 Editor::clear_ranges ()
1840 {
1841         if (_session) {
1842                 _session->begin_reversible_command (_("clear ranges"));
1843                 XMLNode &before = _session->locations()->get_state();
1844
1845                 Location * looploc = _session->locations()->auto_loop_location();
1846                 Location * punchloc = _session->locations()->auto_punch_location();
1847                 Location * sessionloc = _session->locations()->session_range_location();
1848
1849                 _session->locations()->clear_ranges ();
1850                 // re-add these
1851                 if (looploc) _session->locations()->add (looploc);
1852                 if (punchloc) _session->locations()->add (punchloc);
1853                 if (sessionloc) _session->locations()->add (sessionloc);
1854
1855                 XMLNode &after = _session->locations()->get_state();
1856                 _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1857                 _session->commit_reversible_command ();
1858         }
1859 }
1860
1861 void
1862 Editor::clear_locations ()
1863 {
1864         _session->begin_reversible_command (_("clear locations"));
1865         XMLNode &before = _session->locations()->get_state();
1866         _session->locations()->clear ();
1867         XMLNode &after = _session->locations()->get_state();
1868         _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1869         _session->commit_reversible_command ();
1870         _session->locations()->clear ();
1871 }
1872
1873 void
1874 Editor::unhide_markers ()
1875 {
1876         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
1877                 Location *l = (*i).first;
1878                 if (l->is_hidden() && l->is_mark()) {
1879                         l->set_hidden(false, this);
1880                 }
1881         }
1882 }
1883
1884 void
1885 Editor::unhide_ranges ()
1886 {
1887         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
1888                 Location *l = (*i).first;
1889                 if (l->is_hidden() && l->is_range_marker()) {
1890                         l->set_hidden(false, this);
1891                 }
1892         }
1893 }
1894
1895 /* INSERT/REPLACE */
1896
1897 void
1898 Editor::insert_region_list_drag (boost::shared_ptr<Region> region, int x, int y)
1899 {
1900         double wx, wy;
1901         double cx, cy;
1902         framepos_t where;
1903         RouteTimeAxisView *rtv = 0;
1904         boost::shared_ptr<Playlist> playlist;
1905
1906         track_canvas->window_to_world (x, y, wx, wy);
1907
1908         GdkEvent event;
1909         event.type = GDK_BUTTON_RELEASE;
1910         event.button.x = wx;
1911         event.button.y = wy;
1912
1913         where = event_frame (&event, &cx, &cy);
1914
1915         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
1916                 /* clearly outside canvas area */
1917                 return;
1918         }
1919
1920         std::pair<TimeAxisView*, int> tv = trackview_by_y_position (cy);
1921         if (tv.first == 0) {
1922                 return;
1923         }
1924
1925         if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
1926                 return;
1927         }
1928
1929         if ((playlist = rtv->playlist()) == 0) {
1930                 return;
1931         }
1932
1933         snap_to (where);
1934
1935         begin_reversible_command (_("insert dragged region"));
1936         playlist->clear_changes ();
1937         playlist->add_region (RegionFactory::create (region, true), where, 1.0);
1938         _session->add_command(new StatefulDiffCommand (playlist));
1939         commit_reversible_command ();
1940 }
1941
1942 void
1943 Editor::insert_route_list_drag (boost::shared_ptr<Route> route, int x, int y)
1944 {
1945         double wx, wy;
1946         double cx, cy;
1947         RouteTimeAxisView *dest_rtv = 0;
1948         RouteTimeAxisView *source_rtv = 0;
1949
1950         track_canvas->window_to_world (x, y, wx, wy);
1951         wx += horizontal_position ();
1952         wy += vertical_adjustment.get_value();
1953
1954         GdkEvent event;
1955         event.type = GDK_BUTTON_RELEASE;
1956         event.button.x = wx;
1957         event.button.y = wy;
1958
1959         event_frame (&event, &cx, &cy);
1960
1961         std::pair<TimeAxisView*, int> const tv = trackview_by_y_position (cy);
1962         if (tv.first == 0) {
1963                 return;
1964         }
1965
1966         if ((dest_rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
1967                 return;
1968         }
1969
1970         /* use this drag source to add underlay to a track. But we really don't care
1971            about the Route, only the view of the route, so find it first */
1972         for(TrackViewList::iterator it = track_views.begin(); it != track_views.end(); ++it) {
1973                 if((source_rtv = dynamic_cast<RouteTimeAxisView*>(*it)) == 0) {
1974                         continue;
1975                 }
1976
1977                 if(source_rtv->route() == route && source_rtv != dest_rtv) {
1978                         dest_rtv->add_underlay(source_rtv->view());
1979                         break;
1980                 }
1981         }
1982 }
1983
1984 void
1985 Editor::insert_region_list_selection (float times)
1986 {
1987         RouteTimeAxisView *tv = 0;
1988         boost::shared_ptr<Playlist> playlist;
1989
1990         if (clicked_routeview != 0) {
1991                 tv = clicked_routeview;
1992         } else if (!selection->tracks.empty()) {
1993                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
1994                         return;
1995                 }
1996         } else if (entered_track != 0) {
1997                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
1998                         return;
1999                 }
2000         } else {
2001                 return;
2002         }
2003
2004         if ((playlist = tv->playlist()) == 0) {
2005                 return;
2006         }
2007
2008         boost::shared_ptr<Region> region = _regions->get_single_selection ();
2009         if (region == 0) {
2010                 return;
2011         }
2012
2013         begin_reversible_command (_("insert region"));
2014         playlist->clear_changes ();
2015         playlist->add_region ((RegionFactory::create (region, true)), get_preferred_edit_position(), times);
2016         _session->add_command(new StatefulDiffCommand (playlist));
2017         commit_reversible_command ();
2018 }
2019
2020 /* BUILT-IN EFFECTS */
2021
2022 void
2023 Editor::reverse_selection ()
2024 {
2025
2026 }
2027
2028 /* GAIN ENVELOPE EDITING */
2029
2030 void
2031 Editor::edit_envelope ()
2032 {
2033 }
2034
2035 /* PLAYBACK */
2036
2037 void
2038 Editor::transition_to_rolling (bool fwd)
2039 {
2040         if (!_session) {
2041                 return;
2042         }
2043
2044         if (_session->config.get_external_sync()) {
2045                 switch (_session->config.get_sync_source()) {
2046                 case JACK:
2047                         break;
2048                 default:
2049                         /* transport controlled by the master */
2050                         return;
2051                 }
2052         }
2053
2054         if (_session->is_auditioning()) {
2055                 _session->cancel_audition ();
2056                 return;
2057         }
2058
2059         _session->request_transport_speed (fwd ? 1.0f : -1.0f);
2060 }
2061
2062 void
2063 Editor::play_from_start ()
2064 {
2065         _session->request_locate (_session->current_start_frame(), true);
2066 }
2067
2068 void
2069 Editor::play_from_edit_point ()
2070 {
2071         _session->request_locate (get_preferred_edit_position(), true);
2072 }
2073
2074 void
2075 Editor::play_from_edit_point_and_return ()
2076 {
2077         framepos_t start_frame;
2078         framepos_t return_frame;
2079
2080         start_frame = get_preferred_edit_position (true);
2081
2082         if (_session->transport_rolling()) {
2083                 _session->request_locate (start_frame, false);
2084                 return;
2085         }
2086
2087         /* don't reset the return frame if its already set */
2088
2089         if ((return_frame = _session->requested_return_frame()) < 0) {
2090                 return_frame = _session->audible_frame();
2091         }
2092
2093         if (start_frame >= 0) {
2094                 _session->request_roll_at_and_return (start_frame, return_frame);
2095         }
2096 }
2097
2098 void
2099 Editor::play_selection ()
2100 {
2101         if (selection->time.empty()) {
2102                 return;
2103         }
2104
2105         _session->request_play_range (&selection->time, true);
2106 }
2107
2108 void
2109 Editor::play_location (Location& location)
2110 {
2111         if (location.start() <= location.end()) {
2112                 return;
2113         }
2114
2115         _session->request_bounded_roll (location.start(), location.end());
2116 }
2117
2118 void
2119 Editor::loop_location (Location& location)
2120 {
2121         if (location.start() <= location.end()) {
2122                 return;
2123         }
2124
2125         Location* tll;
2126
2127         if ((tll = transport_loop_location()) != 0) {
2128                 tll->set (location.start(), location.end());
2129
2130                 // enable looping, reposition and start rolling
2131                 _session->request_play_loop (true);
2132                 _session->request_locate (tll->start(), true);
2133         }
2134 }
2135
2136 void
2137 Editor::do_layer_operation (LayerOperation op)
2138 {
2139         if (selection->regions.empty ()) {
2140                 return;
2141         }
2142
2143         bool const multiple = selection->regions.size() > 1;
2144         switch (op) {
2145         case Raise:
2146                 if (multiple) {
2147                         begin_reversible_command (_("raise regions"));
2148                 } else {
2149                         begin_reversible_command (_("raise region"));
2150                 }
2151                 break;
2152
2153         case RaiseToTop:
2154                 if (multiple) {
2155                         begin_reversible_command (_("raise regions to top"));
2156                 } else {
2157                         begin_reversible_command (_("raise region to top"));
2158                 }
2159                 break;
2160
2161         case Lower:
2162                 if (multiple) {
2163                         begin_reversible_command (_("lower regions"));
2164                 } else {
2165                         begin_reversible_command (_("lower region"));
2166                 }
2167                 break;
2168
2169         case LowerToBottom:
2170                 if (multiple) {
2171                         begin_reversible_command (_("lower regions to bottom"));
2172                 } else {
2173                         begin_reversible_command (_("lower region"));
2174                 }
2175                 break;
2176         }
2177
2178         set<boost::shared_ptr<Playlist> > playlists = selection->regions.playlists ();
2179         for (set<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
2180                 (*i)->clear_owned_changes ();
2181         }
2182
2183         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
2184                 boost::shared_ptr<Region> r = (*i)->region ();
2185                 switch (op) {
2186                 case Raise:
2187                         r->raise ();
2188                         break;
2189                 case RaiseToTop:
2190                         r->raise_to_top ();
2191                         break;
2192                 case Lower:
2193                         r->lower ();
2194                         break;
2195                 case LowerToBottom:
2196                         r->lower_to_bottom ();
2197                 }
2198         }
2199
2200         for (set<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
2201                 vector<Command*> cmds;
2202                 (*i)->rdiff (cmds);
2203                 _session->add_commands (cmds);
2204         }
2205
2206         commit_reversible_command ();
2207 }
2208
2209 void
2210 Editor::raise_region ()
2211 {
2212         do_layer_operation (Raise);
2213 }
2214
2215 void
2216 Editor::raise_region_to_top ()
2217 {
2218         do_layer_operation (RaiseToTop);
2219 }
2220
2221 void
2222 Editor::lower_region ()
2223 {
2224         do_layer_operation (Lower);
2225 }
2226
2227 void
2228 Editor::lower_region_to_bottom ()
2229 {
2230         do_layer_operation (LowerToBottom);
2231 }
2232
2233 /** Show the region editor for the selected regions */
2234 void
2235 Editor::show_region_properties ()
2236 {
2237         selection->foreach_regionview (&RegionView::show_region_editor);
2238 }
2239
2240 /** Show the midi list editor for the selected MIDI regions */
2241 void
2242 Editor::show_midi_list_editor ()
2243 {
2244         selection->foreach_midi_regionview (&MidiRegionView::show_list_editor);
2245 }
2246
2247 void
2248 Editor::rename_region ()
2249 {
2250         RegionSelection rs = get_regions_from_selection_and_entered ();
2251
2252         if (rs.empty()) {
2253                 return;
2254         }
2255
2256         ArdourDialog d (*this, _("Rename Region"), true, false);
2257         Entry entry;
2258         Label label (_("New name:"));
2259         HBox hbox;
2260
2261         hbox.set_spacing (6);
2262         hbox.pack_start (label, false, false);
2263         hbox.pack_start (entry, true, true);
2264
2265         d.get_vbox()->set_border_width (12);
2266         d.get_vbox()->pack_start (hbox, false, false);
2267
2268         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2269         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2270
2271         d.set_size_request (300, -1);
2272         d.set_position (Gtk::WIN_POS_MOUSE);
2273
2274         entry.set_text (rs.front()->region()->name());
2275         entry.select_region (0, -1);
2276
2277         entry.signal_activate().connect (sigc::bind (sigc::mem_fun (d, &Dialog::response), RESPONSE_OK));
2278
2279         d.show_all ();
2280
2281         entry.grab_focus();
2282
2283         int const ret = d.run();
2284
2285         d.hide ();
2286
2287         if (ret != RESPONSE_OK) {
2288                 return;
2289         }
2290
2291         std::string str = entry.get_text();
2292         strip_whitespace_edges (str);
2293         if (!str.empty()) {
2294                 rs.front()->region()->set_name (str);
2295                 _regions->redisplay ();
2296         }
2297 }
2298
2299 void
2300 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2301 {
2302         if (_session->is_auditioning()) {
2303                 _session->cancel_audition ();
2304         }
2305
2306         // note: some potential for creativity here, because region doesn't
2307         // have to belong to the playlist that Route is handling
2308
2309         // bool was_soloed = route.soloed();
2310
2311         route.set_solo (true, this);
2312
2313         _session->request_bounded_roll (region->position(), region->position() + region->length());
2314
2315         /* XXX how to unset the solo state ? */
2316 }
2317
2318 /** Start an audition of the first selected region */
2319 void
2320 Editor::play_edit_range ()
2321 {
2322         framepos_t start, end;
2323
2324         if (get_edit_op_range (start, end)) {
2325                 _session->request_bounded_roll (start, end);
2326         }
2327 }
2328
2329 void
2330 Editor::play_selected_region ()
2331 {
2332         framepos_t start = max_framepos;
2333         framepos_t end = 0;
2334
2335         RegionSelection rs = get_regions_from_selection_and_entered ();
2336
2337         if (rs.empty()) {
2338                 return;
2339         }
2340
2341         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2342                 if ((*i)->region()->position() < start) {
2343                         start = (*i)->region()->position();
2344                 }
2345                 if ((*i)->region()->last_frame() + 1 > end) {
2346                         end = (*i)->region()->last_frame() + 1;
2347                 }
2348         }
2349
2350         _session->request_bounded_roll (start, end);
2351 }
2352
2353 void
2354 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2355 {
2356         _session->audition_region (region);
2357 }
2358
2359 void
2360 Editor::region_from_selection ()
2361 {
2362         if (clicked_axisview == 0) {
2363                 return;
2364         }
2365
2366         if (selection->time.empty()) {
2367                 return;
2368         }
2369
2370         framepos_t start = selection->time[clicked_selection].start;
2371         framepos_t end = selection->time[clicked_selection].end;
2372
2373         TrackViewList tracks = get_tracks_for_range_action ();
2374
2375         framepos_t selection_cnt = end - start + 1;
2376
2377         for (TrackSelection::iterator i = tracks.begin(); i != tracks.end(); ++i) {
2378                 boost::shared_ptr<Region> current;
2379                 boost::shared_ptr<Playlist> pl;
2380                 framepos_t internal_start;
2381                 string new_name;
2382
2383                 if ((pl = (*i)->playlist()) == 0) {
2384                         continue;
2385                 }
2386
2387                 if ((current = pl->top_region_at (start)) == 0) {
2388                         continue;
2389                 }
2390
2391                 internal_start = start - current->position();
2392                 RegionFactory::region_name (new_name, current->name(), true);
2393
2394                 PropertyList plist;
2395
2396                 plist.add (ARDOUR::Properties::start, current->start() + internal_start);
2397                 plist.add (ARDOUR::Properties::length, selection_cnt);
2398                 plist.add (ARDOUR::Properties::name, new_name);
2399                 plist.add (ARDOUR::Properties::layer, 0);
2400
2401                 boost::shared_ptr<Region> region (RegionFactory::create (current, plist));
2402         }
2403 }
2404
2405 void
2406 Editor::create_region_from_selection (vector<boost::shared_ptr<Region> >& new_regions)
2407 {
2408         if (selection->time.empty() || selection->tracks.empty()) {
2409                 return;
2410         }
2411
2412         framepos_t start = selection->time[clicked_selection].start;
2413         framepos_t end = selection->time[clicked_selection].end;
2414
2415         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
2416         sort_track_selection (ts);
2417
2418         for (TrackSelection::iterator i = ts.begin(); i != ts.end(); ++i) {
2419                 boost::shared_ptr<Region> current;
2420                 boost::shared_ptr<Playlist> playlist;
2421                 framepos_t internal_start;
2422                 string new_name;
2423
2424                 if ((playlist = (*i)->playlist()) == 0) {
2425                         continue;
2426                 }
2427
2428                 if ((current = playlist->top_region_at(start)) == 0) {
2429                         continue;
2430                 }
2431
2432                 internal_start = start - current->position();
2433                 RegionFactory::region_name (new_name, current->name(), true);
2434
2435                 PropertyList plist;
2436
2437                 plist.add (ARDOUR::Properties::start, current->start() + internal_start);
2438                 plist.add (ARDOUR::Properties::length, end - start + 1);
2439                 plist.add (ARDOUR::Properties::name, new_name);
2440
2441                 new_regions.push_back (RegionFactory::create (current, plist));
2442         }
2443 }
2444
2445 void
2446 Editor::split_multichannel_region ()
2447 {
2448         RegionSelection rs = get_regions_from_selection_and_entered ();
2449
2450         if (rs.empty()) {
2451                 return;
2452         }
2453
2454         vector< boost::shared_ptr<Region> > v;
2455
2456         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2457                 (*x)->region()->separate_by_channel (*_session, v);
2458         }
2459 }
2460
2461 void
2462 Editor::new_region_from_selection ()
2463 {
2464         region_from_selection ();
2465         cancel_selection ();
2466 }
2467
2468 static void
2469 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2470 {
2471         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2472         case OverlapNone:
2473                 break;
2474         default:
2475                 rs->push_back (rv);
2476         }
2477 }
2478
2479 /** Return either:
2480  *    - selected tracks, or if there are none...
2481  *    - tracks containing selected regions, or if there are none...
2482  *    - all tracks
2483  * @return tracks.
2484  */
2485 TrackViewList
2486 Editor::get_tracks_for_range_action () const
2487 {
2488         TrackViewList t;
2489
2490         if (selection->tracks.empty()) {
2491
2492                 /* use tracks with selected regions */
2493
2494                 RegionSelection rs = selection->regions;
2495
2496                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2497                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2498
2499                         if (!t.contains (tv)) {
2500                                 t.push_back (tv);
2501                         }
2502                 }
2503
2504                 if (t.empty()) {
2505                         /* no regions and no tracks: use all tracks */
2506                         t = track_views;
2507                 }
2508
2509         } else {
2510
2511                 t = selection->tracks;
2512         }
2513
2514         return t.filter_to_unique_playlists();
2515 }
2516
2517 void
2518 Editor::separate_regions_between (const TimeSelection& ts)
2519 {
2520         bool in_command = false;
2521         boost::shared_ptr<Playlist> playlist;
2522         RegionSelection new_selection;
2523
2524         TrackViewList tmptracks = get_tracks_for_range_action ();
2525         sort_track_selection (tmptracks);
2526
2527         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2528
2529                 RouteTimeAxisView* rtv;
2530
2531                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2532
2533                         if (rtv->is_track()) {
2534
2535                                 /* no edits to destructive tracks */
2536
2537                                 if (rtv->track()->destructive()) {
2538                                         continue;
2539                                 }
2540
2541                                 if ((playlist = rtv->playlist()) != 0) {
2542
2543                                         playlist->clear_changes ();
2544
2545                                         /* XXX need to consider musical time selections here at some point */
2546
2547                                         double speed = rtv->track()->speed();
2548
2549
2550                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2551
2552                                                 sigc::connection c = rtv->view()->RegionViewAdded.connect (
2553                                                                 sigc::mem_fun(*this, &Editor::collect_new_region_view));
2554
2555                                                 latest_regionviews.clear ();
2556
2557                                                 playlist->partition ((framepos_t)((*t).start * speed),
2558                                                                 (framepos_t)((*t).end * speed), false);
2559
2560                                                 c.disconnect ();
2561
2562                                                 if (!latest_regionviews.empty()) {
2563
2564                                                         rtv->view()->foreach_regionview (sigc::bind (
2565                                                                                 sigc::ptr_fun (add_if_covered),
2566                                                                                 &(*t), &new_selection));
2567
2568                                                         if (!in_command) {
2569                                                                 begin_reversible_command (_("separate"));
2570                                                                 in_command = true;
2571                                                         }
2572
2573                                                         /* pick up changes to existing regions */
2574
2575                                                         vector<Command*> cmds;
2576                                                         playlist->rdiff (cmds);
2577                                                         _session->add_commands (cmds);
2578
2579                                                         /* pick up changes to the playlist itself (adds/removes)
2580                                                          */
2581
2582                                                         _session->add_command(new StatefulDiffCommand (playlist));
2583                                                 }
2584                                         }
2585                                 }
2586                         }
2587                 }
2588         }
2589
2590         if (in_command) {
2591                 selection->set (new_selection);
2592                 set_mouse_mode (MouseObject);
2593
2594                 commit_reversible_command ();
2595         }
2596 }
2597
2598 struct PlaylistState {
2599     boost::shared_ptr<Playlist> playlist;
2600     XMLNode*  before;
2601 };
2602
2603 /** Take tracks from get_tracks_for_range_action and cut any regions
2604  *  on those tracks so that the tracks are empty over the time
2605  *  selection.
2606  */
2607 void
2608 Editor::separate_region_from_selection ()
2609 {
2610         /* preferentially use *all* ranges in the time selection if we're in range mode
2611            to allow discontiguous operation, since get_edit_op_range() currently
2612            returns a single range.
2613         */
2614
2615         if (mouse_mode == MouseRange && !selection->time.empty()) {
2616
2617                 separate_regions_between (selection->time);
2618
2619         } else {
2620
2621                 framepos_t start;
2622                 framepos_t end;
2623
2624                 if (get_edit_op_range (start, end)) {
2625
2626                         AudioRange ar (start, end, 1);
2627                         TimeSelection ts;
2628                         ts.push_back (ar);
2629
2630                         separate_regions_between (ts);
2631                 }
2632         }
2633 }
2634
2635 void
2636 Editor::separate_region_from_punch ()
2637 {
2638         Location* loc  = _session->locations()->auto_punch_location();
2639         if (loc) {
2640                 separate_regions_using_location (*loc);
2641         }
2642 }
2643
2644 void
2645 Editor::separate_region_from_loop ()
2646 {
2647         Location* loc  = _session->locations()->auto_loop_location();
2648         if (loc) {
2649                 separate_regions_using_location (*loc);
2650         }
2651 }
2652
2653 void
2654 Editor::separate_regions_using_location (Location& loc)
2655 {
2656         if (loc.is_mark()) {
2657                 return;
2658         }
2659
2660         AudioRange ar (loc.start(), loc.end(), 1);
2661         TimeSelection ts;
2662
2663         ts.push_back (ar);
2664
2665         separate_regions_between (ts);
2666 }
2667
2668 /** Separate regions under the selected region */
2669 void
2670 Editor::separate_under_selected_regions ()
2671 {
2672         vector<PlaylistState> playlists;
2673
2674         RegionSelection rs;
2675
2676         rs = get_regions_from_selection_and_entered();
2677
2678         if (!_session || rs.empty()) {
2679                 return;
2680         }
2681
2682         begin_reversible_command (_("separate region under"));
2683
2684         list<boost::shared_ptr<Region> > regions_to_remove;
2685
2686         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2687                 // we can't just remove the region(s) in this loop because
2688                 // this removes them from the RegionSelection, and they thus
2689                 // disappear from underneath the iterator, and the ++i above
2690                 // SEGVs in a puzzling fashion.
2691
2692                 // so, first iterate over the regions to be removed from rs and
2693                 // add them to the regions_to_remove list, and then
2694                 // iterate over the list to actually remove them.
2695
2696                 regions_to_remove.push_back ((*i)->region());
2697         }
2698
2699         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
2700
2701                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
2702
2703                 if (!playlist) {
2704                         // is this check necessary?
2705                         continue;
2706                 }
2707
2708                 vector<PlaylistState>::iterator i;
2709
2710                 //only take state if this is a new playlist.
2711                 for (i = playlists.begin(); i != playlists.end(); ++i) {
2712                         if ((*i).playlist == playlist) {
2713                                 break;
2714                         }
2715                 }
2716
2717                 if (i == playlists.end()) {
2718
2719                         PlaylistState before;
2720                         before.playlist = playlist;
2721                         before.before = &playlist->get_state();
2722
2723                         playlist->freeze ();
2724                         playlists.push_back(before);
2725                 }
2726
2727                 //Partition on the region bounds
2728                 playlist->partition ((*rl)->first_frame() - 1, (*rl)->last_frame() + 1, true);
2729
2730                 //Re-add region that was just removed due to the partition operation
2731                 playlist->add_region( (*rl), (*rl)->first_frame() );
2732         }
2733
2734         vector<PlaylistState>::iterator pl;
2735
2736         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
2737                 (*pl).playlist->thaw ();
2738                 _session->add_command(new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
2739         }
2740
2741         commit_reversible_command ();
2742 }
2743
2744 void
2745 Editor::crop_region_to_selection ()
2746 {
2747         if (!selection->time.empty()) {
2748
2749                 crop_region_to (selection->time.start(), selection->time.end_frame());
2750
2751         } else {
2752
2753                 framepos_t start;
2754                 framepos_t end;
2755
2756                 if (get_edit_op_range (start, end)) {
2757                         crop_region_to (start, end);
2758                 }
2759         }
2760
2761 }
2762
2763 void
2764 Editor::crop_region_to (framepos_t start, framepos_t end)
2765 {
2766         vector<boost::shared_ptr<Playlist> > playlists;
2767         boost::shared_ptr<Playlist> playlist;
2768         TrackViewList ts;
2769
2770         if (selection->tracks.empty()) {
2771                 ts = track_views.filter_to_unique_playlists();
2772         } else {
2773                 ts = selection->tracks.filter_to_unique_playlists ();
2774         }
2775
2776         sort_track_selection (ts);
2777
2778         for (TrackSelection::iterator i = ts.begin(); i != ts.end(); ++i) {
2779
2780                 RouteTimeAxisView* rtv;
2781
2782                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2783
2784                         boost::shared_ptr<Track> t = rtv->track();
2785
2786                         if (t != 0 && ! t->destructive()) {
2787
2788                                 if ((playlist = rtv->playlist()) != 0) {
2789                                         playlists.push_back (playlist);
2790                                 }
2791                         }
2792                 }
2793         }
2794
2795         if (playlists.empty()) {
2796                 return;
2797         }
2798
2799         framepos_t the_start;
2800         framepos_t the_end;
2801         framepos_t cnt;
2802
2803         begin_reversible_command (_("trim to selection"));
2804
2805         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
2806
2807                 boost::shared_ptr<Region> region;
2808
2809                 the_start = start;
2810
2811                 if ((region = (*i)->top_region_at(the_start)) == 0) {
2812                         continue;
2813                 }
2814
2815                 /* now adjust lengths to that we do the right thing
2816                    if the selection extends beyond the region
2817                 */
2818
2819                 the_start = max (the_start, (framepos_t) region->position());
2820                 if (max_framepos - the_start < region->length()) {
2821                         the_end = the_start + region->length() - 1;
2822                 } else {
2823                         the_end = max_framepos;
2824                 }
2825                 the_end = min (end, the_end);
2826                 cnt = the_end - the_start + 1;
2827
2828                 region->clear_changes ();
2829                 region->trim_to (the_start, cnt);
2830                 _session->add_command (new StatefulDiffCommand (region));
2831         }
2832
2833         commit_reversible_command ();
2834 }
2835
2836 void
2837 Editor::region_fill_track ()
2838 {
2839         RegionSelection rs = get_regions_from_selection_and_entered ();
2840
2841         if (!_session || rs.empty()) {
2842                 return;
2843         }
2844
2845         framepos_t const end = _session->current_end_frame ();
2846
2847         begin_reversible_command (Operations::region_fill);
2848
2849         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2850
2851                 boost::shared_ptr<Region> region ((*i)->region());
2852
2853                 boost::shared_ptr<Playlist> pl = region->playlist();
2854
2855                 if (end <= region->last_frame()) {
2856                         return;
2857                 }
2858
2859                 double times = (double) (end - region->last_frame()) / (double) region->length();
2860
2861                 if (times == 0) {
2862                         return;
2863                 }
2864
2865                 pl->clear_changes ();
2866                 pl->add_region (RegionFactory::create (region, true), region->last_frame(), times);
2867                 _session->add_command (new StatefulDiffCommand (pl));
2868         }
2869
2870         commit_reversible_command ();
2871 }
2872
2873 void
2874 Editor::region_fill_selection ()
2875 {
2876         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
2877                 return;
2878         }
2879
2880         if (selection->time.empty()) {
2881                 return;
2882         }
2883
2884         boost::shared_ptr<Region> region = _regions->get_single_selection ();
2885         if (region == 0) {
2886                 return;
2887         }
2888
2889         framepos_t start = selection->time[clicked_selection].start;
2890         framepos_t end = selection->time[clicked_selection].end;
2891
2892         boost::shared_ptr<Playlist> playlist;
2893
2894         if (selection->tracks.empty()) {
2895                 return;
2896         }
2897
2898         framepos_t selection_length = end - start;
2899         float times = (float)selection_length / region->length();
2900
2901         begin_reversible_command (Operations::fill_selection);
2902
2903         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
2904
2905         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
2906
2907                 if ((playlist = (*i)->playlist()) == 0) {
2908                         continue;
2909                 }
2910
2911                 playlist->clear_changes ();
2912                 playlist->add_region (RegionFactory::create (region, true), start, times);
2913                 _session->add_command (new StatefulDiffCommand (playlist));
2914         }
2915
2916         commit_reversible_command ();
2917 }
2918
2919 void
2920 Editor::set_region_sync_position ()
2921 {
2922         set_sync_point (get_preferred_edit_position (), get_regions_from_selection_and_edit_point ());
2923 }
2924
2925 void
2926 Editor::set_sync_point (framepos_t where, const RegionSelection& rs)
2927 {
2928         bool in_command = false;
2929
2930         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
2931
2932                 if (!(*r)->region()->covers (where)) {
2933                         continue;
2934                 }
2935
2936                 boost::shared_ptr<Region> region ((*r)->region());
2937
2938                 if (!in_command) {
2939                         begin_reversible_command (_("set sync point"));
2940                         in_command = true;
2941                 }
2942
2943                 region->clear_changes ();
2944                 region->set_sync_position (where);
2945                 _session->add_command(new StatefulDiffCommand (region));
2946         }
2947
2948         if (in_command) {
2949                 commit_reversible_command ();
2950         }
2951 }
2952
2953 /** Remove the sync positions of the selection */
2954 void
2955 Editor::remove_region_sync ()
2956 {
2957         RegionSelection rs = get_regions_from_selection_and_entered ();
2958
2959         if (rs.empty()) {
2960                 return;
2961         }
2962
2963         begin_reversible_command (_("remove region sync"));
2964
2965         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2966
2967                 (*i)->region()->clear_changes ();
2968                 (*i)->region()->clear_sync_position ();
2969                 _session->add_command(new StatefulDiffCommand ((*i)->region()));
2970         }
2971
2972         commit_reversible_command ();
2973 }
2974
2975 void
2976 Editor::naturalize_region ()
2977 {
2978         RegionSelection rs = get_regions_from_selection_and_entered ();
2979
2980         if (rs.empty()) {
2981                 return;
2982         }
2983
2984         if (rs.size() > 1) {
2985                 begin_reversible_command (_("move regions to original position"));
2986         } else {
2987                 begin_reversible_command (_("move region to original position"));
2988         }
2989
2990         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2991                 (*i)->region()->clear_changes ();
2992                 (*i)->region()->move_to_natural_position ();
2993                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
2994         }
2995
2996         commit_reversible_command ();
2997 }
2998
2999 void
3000 Editor::align_regions (RegionPoint what)
3001 {
3002         RegionSelection const rs = get_regions_from_selection_and_edit_point ();
3003
3004         if (rs.empty()) {
3005                 return;
3006         }
3007
3008         begin_reversible_command (_("align selection"));
3009
3010         framepos_t const position = get_preferred_edit_position ();
3011
3012         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3013                 align_region_internal ((*i)->region(), what, position);
3014         }
3015
3016         commit_reversible_command ();
3017 }
3018
3019 struct RegionSortByTime {
3020     bool operator() (const RegionView* a, const RegionView* b) {
3021             return a->region()->position() < b->region()->position();
3022     }
3023 };
3024
3025 void
3026 Editor::align_regions_relative (RegionPoint point)
3027 {
3028         RegionSelection const rs = get_regions_from_selection_and_edit_point ();
3029
3030         if (rs.empty()) {
3031                 return;
3032         }
3033
3034         framepos_t const position = get_preferred_edit_position ();
3035
3036         framepos_t distance = 0;
3037         framepos_t pos = 0;
3038         int dir = 1;
3039
3040         list<RegionView*> sorted;
3041         rs.by_position (sorted);
3042
3043         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3044
3045         switch (point) {
3046         case Start:
3047                 pos = position;
3048                 if (position > r->position()) {
3049                         distance = position - r->position();
3050                 } else {
3051                         distance = r->position() - position;
3052                         dir = -1;
3053                 }
3054                 break;
3055
3056         case End:
3057                 if (position > r->last_frame()) {
3058                         distance = position - r->last_frame();
3059                         pos = r->position() + distance;
3060                 } else {
3061                         distance = r->last_frame() - position;
3062                         pos = r->position() - distance;
3063                         dir = -1;
3064                 }
3065                 break;
3066
3067         case SyncPoint:
3068                 pos = r->adjust_to_sync (position);
3069                 if (pos > r->position()) {
3070                         distance = pos - r->position();
3071                 } else {
3072                         distance = r->position() - pos;
3073                         dir = -1;
3074                 }
3075                 break;
3076         }
3077
3078         if (pos == r->position()) {
3079                 return;
3080         }
3081
3082         begin_reversible_command (_("align selection (relative)"));
3083
3084         /* move first one specially */
3085
3086         r->clear_changes ();
3087         r->set_position (pos);
3088         _session->add_command(new StatefulDiffCommand (r));
3089
3090         /* move rest by the same amount */
3091
3092         sorted.pop_front();
3093
3094         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3095
3096                 boost::shared_ptr<Region> region ((*i)->region());
3097
3098                 region->clear_changes ();
3099
3100                 if (dir > 0) {
3101                         region->set_position (region->position() + distance);
3102                 } else {
3103                         region->set_position (region->position() - distance);
3104                 }
3105
3106                 _session->add_command(new StatefulDiffCommand (region));
3107
3108         }
3109
3110         commit_reversible_command ();
3111 }
3112
3113 void
3114 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, framepos_t position)
3115 {
3116         begin_reversible_command (_("align region"));
3117         align_region_internal (region, point, position);
3118         commit_reversible_command ();
3119 }
3120
3121 void
3122 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, framepos_t position)
3123 {
3124         region->clear_changes ();
3125
3126         switch (point) {
3127         case SyncPoint:
3128                 region->set_position (region->adjust_to_sync (position));
3129                 break;
3130
3131         case End:
3132                 if (position > region->length()) {
3133                         region->set_position (position - region->length());
3134                 }
3135                 break;
3136
3137         case Start:
3138                 region->set_position (position);
3139                 break;
3140         }
3141
3142         _session->add_command(new StatefulDiffCommand (region));
3143 }
3144
3145 void
3146 Editor::trim_region_front ()
3147 {
3148         trim_region (true);
3149 }
3150
3151 void
3152 Editor::trim_region_back ()
3153 {
3154         trim_region (false);
3155 }
3156
3157 void
3158 Editor::trim_region (bool front)
3159 {
3160         framepos_t where = get_preferred_edit_position();
3161         RegionSelection rs = get_regions_from_selection_and_edit_point ();
3162
3163         cerr << "trim regions\n";
3164
3165         if (rs.empty()) {
3166                 cerr << " no regions\n";
3167                 return;
3168         }
3169
3170         cerr << "where = " << where << endl;
3171
3172         begin_reversible_command (front ? _("trim front") : _("trim back"));
3173
3174         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
3175                 if (!(*i)->region()->locked()) {
3176
3177                         (*i)->region()->clear_changes ();
3178
3179                         if (front) {
3180                                 (*i)->region()->trim_front (where);
3181                         } else {
3182                                 (*i)->region()->trim_end (where);
3183                         }
3184
3185                         _session->add_command (new StatefulDiffCommand ((*i)->region()));
3186                 }
3187         }
3188
3189         commit_reversible_command ();
3190 }
3191
3192 /** Trim the end of the selected regions to the position of the edit cursor */
3193 void
3194 Editor::trim_region_to_loop ()
3195 {
3196         Location* loc = _session->locations()->auto_loop_location();
3197         if (!loc) {
3198                 return;
3199         }
3200         trim_region_to_location (*loc, _("trim to loop"));
3201 }
3202
3203 void
3204 Editor::trim_region_to_punch ()
3205 {
3206         Location* loc = _session->locations()->auto_punch_location();
3207         if (!loc) {
3208                 return;
3209         }
3210         trim_region_to_location (*loc, _("trim to punch"));
3211 }
3212
3213 void
3214 Editor::trim_region_to_location (const Location& loc, const char* str)
3215 {
3216         RegionSelection rs = get_regions_from_selection_and_entered ();
3217
3218         begin_reversible_command (str);
3219
3220         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3221                 RegionView* rv = (*x);
3222
3223                 /* require region to span proposed trim */
3224                 switch (rv->region()->coverage (loc.start(), loc.end())) {
3225                 case OverlapInternal:
3226                         break;
3227                 default:
3228                         continue;
3229                 }
3230
3231                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3232                 if (!tav) {
3233                         return;
3234                 }
3235
3236                 float speed = 1.0;
3237                 framepos_t start;
3238                 framepos_t end;
3239
3240                 if (tav->track() != 0) {
3241                         speed = tav->track()->speed();
3242                 }
3243
3244                 start = session_frame_to_track_frame (loc.start(), speed);
3245                 end = session_frame_to_track_frame (loc.end(), speed);
3246
3247                 rv->region()->clear_changes ();
3248                 rv->region()->trim_to (start, (end - start));
3249                 _session->add_command(new StatefulDiffCommand (rv->region()));
3250         }
3251
3252         commit_reversible_command ();
3253 }
3254
3255 void
3256 Editor::trim_region_to_previous_region_end ()
3257 {
3258         return trim_to_region(false);
3259 }
3260
3261 void
3262 Editor::trim_region_to_next_region_start ()
3263 {
3264         return trim_to_region(true);
3265 }
3266
3267 void
3268 Editor::trim_to_region(bool forward)
3269 {
3270         RegionSelection rs = get_regions_from_selection_and_entered ();
3271
3272         begin_reversible_command (_("trim to region"));
3273
3274         boost::shared_ptr<Region> next_region;
3275
3276         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3277
3278                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3279
3280                 if (!arv) {
3281                         continue;
3282                 }
3283
3284                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3285
3286                 if (!atav) {
3287                         return;
3288                 }
3289
3290                 float speed = 1.0;
3291
3292                 if (atav->track() != 0) {
3293                         speed = atav->track()->speed();
3294                 }
3295
3296
3297                 boost::shared_ptr<Region> region = arv->region();
3298                 boost::shared_ptr<Playlist> playlist (region->playlist());
3299
3300                 region->clear_changes ();
3301
3302                 if (forward) {
3303
3304                     next_region = playlist->find_next_region (region->first_frame(), Start, 1);
3305
3306                     if (!next_region) {
3307                         continue;
3308                     }
3309
3310                     region->trim_end((framepos_t) ( (next_region->first_frame() - 1) * speed));
3311                     arv->region_changed (PropertyChange (ARDOUR::Properties::length));
3312                 }
3313                 else {
3314
3315                     next_region = playlist->find_next_region (region->first_frame(), Start, 0);
3316
3317                     if(!next_region){
3318                         continue;
3319                     }
3320
3321                     region->trim_front((framepos_t) ((next_region->last_frame() + 1) * speed));
3322
3323                     arv->region_changed (ARDOUR::bounds_change);
3324                 }
3325
3326                 _session->add_command(new StatefulDiffCommand (region));
3327         }
3328
3329         commit_reversible_command ();
3330 }
3331
3332 void
3333 Editor::unfreeze_route ()
3334 {
3335         if (clicked_routeview == 0 || !clicked_routeview->is_track()) {
3336                 return;
3337         }
3338
3339         clicked_routeview->track()->unfreeze ();
3340 }
3341
3342 void*
3343 Editor::_freeze_thread (void* arg)
3344 {
3345         SessionEvent::create_per_thread_pool ("freeze events", 64);
3346
3347         return static_cast<Editor*>(arg)->freeze_thread ();
3348 }
3349
3350 void*
3351 Editor::freeze_thread ()
3352 {
3353         clicked_routeview->audio_track()->freeze_me (*current_interthread_info);
3354         current_interthread_info->done = true;
3355         return 0;
3356 }
3357
3358 void
3359 Editor::freeze_route ()
3360 {
3361         if (!_session) {
3362                 return;
3363         }
3364
3365         /* stop transport before we start. this is important */
3366
3367         _session->request_transport_speed (0.0);
3368
3369         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3370                 return;
3371         }
3372
3373         if (!clicked_routeview->track()->bounceable()) {
3374                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (clicked_routeview);
3375                 if (rtv && !rtv->track()->bounceable()) {
3376                         MessageDialog d (
3377                                 _("This route cannot be frozen because it has more outputs than inputs.  "
3378                                   "You can fix this by increasing the number of inputs.")
3379                                 );
3380                         d.set_title (_("Cannot freeze"));
3381                         d.run ();
3382                         return;
3383                 }
3384         }
3385
3386         InterThreadInfo itt;
3387         current_interthread_info = &itt;
3388
3389         InterthreadProgressWindow ipw (current_interthread_info, _("Freeze"), _("Cancel Freeze"));
3390
3391         pthread_create_and_store (X_("freezer"), &itt.thread, _freeze_thread, this);
3392
3393         set_canvas_cursor (_cursors->wait);
3394
3395         while (!itt.done && !itt.cancel) {
3396                 gtk_main_iteration ();
3397         }
3398
3399         current_interthread_info = 0;
3400         set_canvas_cursor (current_canvas_cursor);
3401 }
3402
3403 void
3404 Editor::bounce_range_selection (bool replace, bool enable_processing)
3405 {
3406         if (selection->time.empty()) {
3407                 return;
3408         }
3409
3410         TrackSelection views = selection->tracks;
3411
3412         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3413                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
3414                 if (rtv && rtv->track() && replace && enable_processing && !rtv->track()->bounceable()) {
3415                         MessageDialog d (
3416                                 _("You can't perform this operation because the processing of the signal "
3417                                   "will cause one or more of the tracks will end up with a region with more channels than this track has inputs.\n\n"
3418                                   "You can do this without processing, which is a different operation.")
3419                                 );
3420                         d.set_title (_("Cannot bounce"));
3421                         d.run ();
3422                         return;
3423                 }
3424         }
3425
3426         framepos_t start = selection->time[clicked_selection].start;
3427         framepos_t end = selection->time[clicked_selection].end;
3428         framepos_t cnt = end - start + 1;
3429
3430         begin_reversible_command (_("bounce range"));
3431
3432         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3433
3434                 RouteTimeAxisView* rtv;
3435
3436                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
3437                         continue;
3438                 }
3439
3440                 boost::shared_ptr<Playlist> playlist;
3441
3442                 if ((playlist = rtv->playlist()) == 0) {
3443                         return;
3444                 }
3445
3446                 InterThreadInfo itt;
3447
3448                 playlist->clear_changes ();
3449                 playlist->clear_owned_changes ();
3450
3451                 boost::shared_ptr<Region> r = rtv->track()->bounce_range (start, start+cnt, itt, enable_processing);
3452
3453                 if (!r) {
3454                         continue;
3455                 }
3456
3457                 if (replace) {
3458                         list<AudioRange> ranges;
3459                         ranges.push_back (AudioRange (start, start+cnt, 0));
3460                         playlist->cut (ranges); // discard result
3461                         playlist->add_region (r, start);
3462                 }
3463
3464                 vector<Command*> cmds;
3465                 playlist->rdiff (cmds);
3466                 _session->add_commands (cmds);
3467
3468                 _session->add_command (new StatefulDiffCommand (playlist));
3469         }
3470
3471         commit_reversible_command ();
3472 }
3473
3474 /** Delete selected regions, automation points or a time range */
3475 void
3476 Editor::delete_ ()
3477 {
3478         cut_copy (Delete);
3479 }
3480
3481 /** Cut selected regions, automation points or a time range */
3482 void
3483 Editor::cut ()
3484 {
3485         cut_copy (Cut);
3486 }
3487
3488 /** Copy selected regions, automation points or a time range */
3489 void
3490 Editor::copy ()
3491 {
3492         cut_copy (Copy);
3493 }
3494
3495
3496 /** @return true if a Cut, Copy or Clear is possible */
3497 bool
3498 Editor::can_cut_copy () const
3499 {
3500         switch (current_mouse_mode()) {
3501
3502         case MouseObject:
3503                 if (!selection->regions.empty() || !selection->points.empty()) {
3504                         return true;
3505                 }
3506                 break;
3507
3508         case MouseRange:
3509                 if (!selection->time.empty()) {
3510                         return true;
3511                 }
3512                 break;
3513
3514         default:
3515                 break;
3516         }
3517
3518         return false;
3519 }
3520
3521
3522 /** Cut, copy or clear selected regions, automation points or a time range.
3523  * @param op Operation (Cut, Copy or Clear)
3524  */
3525 void
3526 Editor::cut_copy (CutCopyOp op)
3527 {
3528         /* only cancel selection if cut/copy is successful.*/
3529
3530         string opname;
3531
3532         switch (op) {
3533         case Delete:
3534                 opname = _("delete");
3535                 break;
3536         case Cut:
3537                 opname = _("cut");
3538                 break;
3539         case Copy:
3540                 opname = _("copy");
3541                 break;
3542         case Clear:
3543                 opname = _("clear");
3544                 break;
3545         }
3546
3547         /* if we're deleting something, and the mouse is still pressed,
3548            the thing we started a drag for will be gone when we release
3549            the mouse button(s). avoid this. see part 2 at the end of
3550            this function.
3551         */
3552
3553         if (op == Delete || op == Cut || op == Clear) {
3554                 if (_drags->active ()) {
3555                         _drags->abort ();
3556                 }
3557         }
3558
3559         cut_buffer->clear ();
3560
3561         if (entered_marker) {
3562
3563                 /* cut/delete op while pointing at a marker */
3564
3565                 bool ignored;
3566                 Location* loc = find_location_from_marker (entered_marker, ignored);
3567
3568                 if (_session && loc) {
3569                         Glib::signal_idle().connect (sigc::bind (sigc::mem_fun(*this, &Editor::really_remove_marker), loc));
3570                 }
3571
3572                 _drags->abort ();
3573                 return;
3574         }
3575
3576         if (internal_editing()) {
3577
3578                 switch (current_mouse_mode()) {
3579                 case MouseObject:
3580                 case MouseRange:
3581                         cut_copy_midi (op);
3582                         break;
3583                 default:
3584                         break;
3585                 }
3586
3587         } else {
3588
3589                 RegionSelection rs;
3590
3591                 /* we only want to cut regions if some are selected */
3592
3593                 switch (current_mouse_mode()) {
3594                 case MouseObject:
3595                         rs = get_regions_from_selection ();
3596                         if (!rs.empty() || !selection->points.empty()) {
3597
3598                                 begin_reversible_command (opname + _(" objects"));
3599
3600                                 if (!rs.empty()) {
3601                                         cut_copy_regions (op, rs);
3602
3603                                         if (op == Cut || op == Delete) {
3604                                                 selection->clear_regions ();
3605                                         }
3606                                 }
3607
3608                                 if (!selection->points.empty()) {
3609                                         cut_copy_points (op);
3610
3611                                         if (op == Cut || op == Delete) {
3612                                                 selection->clear_points ();
3613                                         }
3614                                 }
3615                                 commit_reversible_command ();
3616                                 break; // terminate case statement here
3617                         }
3618                         if (!selection->time.empty()) {
3619                                 /* don't cause suprises */
3620                                 break;
3621                         }
3622                         // fall thru if there was nothing selected
3623
3624                 case MouseRange:
3625                         if (selection->time.empty()) {
3626                                 framepos_t start, end;
3627                                 if (!get_edit_op_range (start, end)) {
3628                                         return;
3629                                 }
3630                                 selection->set (start, end);
3631                         }
3632
3633                         begin_reversible_command (opname + _(" range"));
3634                         cut_copy_ranges (op);
3635                         commit_reversible_command ();
3636
3637                         if (op == Cut || op == Delete) {
3638                                 selection->clear_time ();
3639                         }
3640
3641                         break;
3642
3643                 default:
3644                         break;
3645                 }
3646         }
3647
3648         if (op == Delete || op == Cut || op == Clear) {
3649                 _drags->abort ();
3650         }
3651 }
3652
3653 /** Cut, copy or clear selected automation points.
3654  * @param op Operation (Cut, Copy or Clear)
3655  */
3656 void
3657 Editor::cut_copy_points (CutCopyOp op)
3658 {
3659         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3660
3661                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>((*i).track);
3662                 _last_cut_copy_source_track = atv;
3663
3664                 if (atv) {
3665                         atv->cut_copy_clear_objects (selection->points, op);
3666                 }
3667         }
3668 }
3669
3670 /** Cut, copy or clear selected automation points.
3671  * @param op Operation (Cut, Copy or Clear)
3672  */
3673 void
3674 Editor::cut_copy_midi (CutCopyOp op)
3675 {
3676         for (MidiRegionSelection::iterator i = selection->midi_regions.begin(); i != selection->midi_regions.end(); ++i) {
3677                 MidiRegionView* mrv = *i;
3678                 mrv->cut_copy_clear (op);
3679         }
3680 }
3681
3682
3683
3684 struct lt_playlist {
3685     bool operator () (const PlaylistState& a, const PlaylistState& b) {
3686             return a.playlist < b.playlist;
3687     }
3688 };
3689
3690 struct PlaylistMapping {
3691     TimeAxisView* tv;
3692     boost::shared_ptr<Playlist> pl;
3693
3694     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
3695 };
3696
3697 /** Remove `clicked_regionview' */
3698 void
3699 Editor::remove_clicked_region ()
3700 {
3701         if (clicked_routeview == 0 || clicked_regionview == 0) {
3702                 return;
3703         }
3704
3705         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
3706
3707         begin_reversible_command (_("remove region"));
3708         playlist->clear_changes ();
3709         playlist->remove_region (clicked_regionview->region());
3710         _session->add_command(new StatefulDiffCommand (playlist));
3711         commit_reversible_command ();
3712 }
3713
3714
3715 /** Remove the selected regions */
3716 void
3717 Editor::remove_selected_regions ()
3718 {
3719         RegionSelection rs = get_regions_from_selection_and_entered ();
3720
3721         if (!_session || rs.empty()) {
3722                 return;
3723         }
3724
3725         begin_reversible_command (_("remove region"));
3726
3727         list<boost::shared_ptr<Region> > regions_to_remove;
3728
3729         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3730                 // we can't just remove the region(s) in this loop because
3731                 // this removes them from the RegionSelection, and they thus
3732                 // disappear from underneath the iterator, and the ++i above
3733                 // SEGVs in a puzzling fashion.
3734
3735                 // so, first iterate over the regions to be removed from rs and
3736                 // add them to the regions_to_remove list, and then
3737                 // iterate over the list to actually remove them.
3738
3739                 regions_to_remove.push_back ((*i)->region());
3740         }
3741
3742         vector<boost::shared_ptr<Playlist> > playlists;
3743
3744         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
3745
3746                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
3747
3748                 if (!playlist) {
3749                         // is this check necessary?
3750                         continue;
3751                 }
3752
3753                 /* get_regions_from_selection_and_entered() guarantees that
3754                    the playlists involved are unique, so there is no need
3755                    to check here.
3756                 */
3757
3758                 playlists.push_back (playlist);
3759
3760                 playlist->clear_changes ();
3761                 playlist->freeze ();
3762                 playlist->remove_region (*rl);
3763         }
3764
3765         vector<boost::shared_ptr<Playlist> >::iterator pl;
3766
3767         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
3768                 (*pl)->thaw ();
3769                 _session->add_command(new StatefulDiffCommand (*pl));
3770         }
3771
3772         commit_reversible_command ();
3773 }
3774
3775 /** Cut, copy or clear selected regions.
3776  * @param op Operation (Cut, Copy or Clear)
3777  */
3778 void
3779 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
3780 {
3781         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
3782            a map when we want ordered access to both elements. i think.
3783         */
3784
3785         vector<PlaylistMapping> pmap;
3786
3787         framepos_t first_position = max_framepos;
3788
3789         typedef set<boost::shared_ptr<Playlist> > FreezeList;
3790         FreezeList freezelist;
3791
3792         /* get ordering correct before we cut/copy */
3793
3794         rs.sort_by_position_and_track ();
3795
3796         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3797
3798                 first_position = min ((framepos_t) (*x)->region()->position(), first_position);
3799
3800                 if (op == Cut || op == Clear || op == Delete) {
3801                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
3802
3803                         if (pl) {
3804                                 FreezeList::iterator fl;
3805
3806                                 // only take state if this is a new playlist.
3807                                 for (fl = freezelist.begin(); fl != freezelist.end(); ++fl) {
3808                                         if ((*fl) == pl) {
3809                                                 break;
3810                                         }
3811                                 }
3812
3813                                 if (fl == freezelist.end()) {
3814                                         pl->clear_changes();
3815                                         pl->freeze ();
3816                                         freezelist.insert (pl);
3817                                 }
3818                         }
3819                 }
3820
3821                 TimeAxisView* tv = &(*x)->get_time_axis_view();
3822                 vector<PlaylistMapping>::iterator z;
3823
3824                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3825                         if ((*z).tv == tv) {
3826                                 break;
3827                         }
3828                 }
3829
3830                 if (z == pmap.end()) {
3831                         pmap.push_back (PlaylistMapping (tv));
3832                 }
3833         }
3834
3835         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
3836
3837                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
3838
3839                 if (!pl) {
3840                         /* region not yet associated with a playlist (e.g. unfinished
3841                            capture pass.
3842                         */
3843                         ++x;
3844                         continue;
3845                 }
3846
3847                 TimeAxisView& tv = (*x)->get_time_axis_view();
3848                 boost::shared_ptr<Playlist> npl;
3849                 RegionSelection::iterator tmp;
3850
3851                 tmp = x;
3852                 ++tmp;
3853
3854                 if (op != Delete) {
3855
3856                         vector<PlaylistMapping>::iterator z;
3857
3858                         for (z = pmap.begin(); z != pmap.end(); ++z) {
3859                                 if ((*z).tv == &tv) {
3860                                         break;
3861                                 }
3862                         }
3863
3864                         assert (z != pmap.end());
3865
3866                         if (!(*z).pl) {
3867                                 npl = PlaylistFactory::create (pl->data_type(), *_session, "cutlist", true);
3868                                 npl->freeze();
3869                                 (*z).pl = npl;
3870                         } else {
3871                                 npl = (*z).pl;
3872                         }
3873                 }
3874
3875                 boost::shared_ptr<Region> r = (*x)->region();
3876                 boost::shared_ptr<Region> _xx;
3877
3878                 assert (r != 0);
3879
3880                 switch (op) {
3881                 case Delete:
3882                         pl->remove_region (r);
3883                         break;
3884
3885                 case Cut:
3886                         _xx = RegionFactory::create (r);
3887                         npl->add_region (_xx, r->position() - first_position);
3888                         pl->remove_region (r);
3889                         break;
3890
3891                 case Copy:
3892                         /* copy region before adding, so we're not putting same object into two different playlists */
3893                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
3894                         break;
3895
3896                 case Clear:
3897                         pl->remove_region (r);
3898                         break;
3899                 }
3900
3901                 x = tmp;
3902         }
3903
3904         if (op != Delete) {
3905
3906                 list<boost::shared_ptr<Playlist> > foo;
3907
3908                 /* the pmap is in the same order as the tracks in which selected regions occured */
3909
3910                 for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
3911                         if ((*i).pl) {
3912                                 (*i).pl->thaw();
3913                                 foo.push_back ((*i).pl);
3914                         }
3915                 }
3916
3917                 if (!foo.empty()) {
3918                         cut_buffer->set (foo);
3919                 }
3920
3921                 if (pmap.empty()) {
3922                         _last_cut_copy_source_track = 0;
3923                 } else {
3924                         _last_cut_copy_source_track = pmap.front().tv;
3925                 }
3926         }
3927
3928         for (FreezeList::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
3929                 (*pl)->thaw ();
3930                 _session->add_command (new StatefulDiffCommand (*pl));
3931         }
3932 }
3933
3934 void
3935 Editor::cut_copy_ranges (CutCopyOp op)
3936 {
3937         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
3938
3939         /* Sort the track selection now, so that it if is used, the playlists
3940            selected by the calls below to cut_copy_clear are in the order that
3941            their tracks appear in the editor.  This makes things like paste
3942            of ranges work properly.
3943         */
3944
3945         sort_track_selection (ts);
3946
3947         if (ts.empty()) {
3948                 if (!entered_track) {
3949                         return;
3950                 }
3951                 ts.push_back (entered_track);
3952         }
3953
3954         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
3955                 (*i)->cut_copy_clear (*selection, op);
3956         }
3957 }
3958
3959 void
3960 Editor::paste (float times)
3961 {
3962         DEBUG_TRACE (DEBUG::CutNPaste, "paste to preferred edit pos\n");
3963         paste_internal (get_preferred_edit_position(), times);
3964 }
3965
3966 void
3967 Editor::mouse_paste ()
3968 {
3969         framepos_t where;
3970         bool ignored;
3971
3972         if (!mouse_frame (where, ignored)) {
3973                 return;
3974         }
3975
3976         snap_to (where);
3977         paste_internal (where, 1);
3978 }
3979
3980 void
3981 Editor::paste_internal (framepos_t position, float times)
3982 {
3983         DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("apparent paste position is %1\n", position));
3984
3985         if (internal_editing()) {
3986                 if (cut_buffer->midi_notes.empty()) {
3987                         return;
3988                 }
3989         } else {
3990                 if (cut_buffer->empty()) {
3991                         return;
3992                 }
3993         }
3994
3995         if (position == max_framepos) {
3996                 position = get_preferred_edit_position();
3997                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("preferred edit position is %1\n", position));
3998         }
3999
4000         TrackViewList ts;
4001         TrackViewList::iterator i;
4002         size_t nth;
4003
4004         /* get everything in the correct order */
4005
4006         if (!selection->tracks.empty()) {
4007                 /* there are some selected tracks, so paste to them */
4008                 ts = selection->tracks.filter_to_unique_playlists ();
4009                 sort_track_selection (ts);
4010         } else if (_last_cut_copy_source_track) {
4011                 /* otherwise paste to the track that the cut/copy came from;
4012                    see discussion in mantis #3333.
4013                 */
4014                 ts.push_back (_last_cut_copy_source_track);
4015         }
4016
4017         if (internal_editing ()) {
4018
4019                 /* undo/redo is handled by individual tracks/regions */
4020
4021                 for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4022
4023                         RegionSelection rs;
4024                         RegionSelection::iterator r;
4025                         MidiNoteSelection::iterator cb;
4026
4027                         get_regions_at (rs, position, ts);
4028
4029                         for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
4030                              cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
4031                                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
4032                                 if (mrv) {
4033                                         mrv->paste (position, times, **cb);
4034                                         ++cb;
4035                                 }
4036                         }
4037                 }
4038
4039         } else {
4040
4041                 /* we do redo (do you do voodoo?) */
4042
4043                 begin_reversible_command (Operations::paste);
4044
4045                 for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4046                         (*i)->paste (position, times, *cut_buffer, nth);
4047                 }
4048
4049                 commit_reversible_command ();
4050         }
4051 }
4052
4053 void
4054 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4055 {
4056         boost::shared_ptr<Playlist> playlist;
4057         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4058         RegionSelection foo;
4059
4060         framepos_t const start_frame = regions.start ();
4061         framepos_t const end_frame = regions.end_frame ();
4062
4063         begin_reversible_command (Operations::duplicate_region);
4064
4065         selection->clear_regions ();
4066
4067         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4068
4069                 boost::shared_ptr<Region> r ((*i)->region());
4070
4071                 TimeAxisView& tv = (*i)->get_time_axis_view();
4072                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4073                 latest_regionviews.clear ();
4074                 sigc::connection c = rtv->view()->RegionViewAdded.connect (sigc::mem_fun(*this, &Editor::collect_new_region_view));
4075
4076                 playlist = (*i)->region()->playlist();
4077                 playlist->clear_changes ();
4078                 playlist->duplicate (r, end_frame + (r->first_frame() - start_frame), times);
4079                 _session->add_command(new StatefulDiffCommand (playlist));
4080
4081                 c.disconnect ();
4082
4083                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4084         }
4085
4086         commit_reversible_command ();
4087
4088         if (!foo.empty()) {
4089                 selection->set (foo);
4090         }
4091 }
4092
4093 void
4094 Editor::duplicate_selection (float times)
4095 {
4096         if (selection->time.empty() || selection->tracks.empty()) {
4097                 return;
4098         }
4099
4100         boost::shared_ptr<Playlist> playlist;
4101         vector<boost::shared_ptr<Region> > new_regions;
4102         vector<boost::shared_ptr<Region> >::iterator ri;
4103
4104         create_region_from_selection (new_regions);
4105
4106         if (new_regions.empty()) {
4107                 return;
4108         }
4109
4110         begin_reversible_command (_("duplicate selection"));
4111
4112         ri = new_regions.begin();
4113
4114         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
4115
4116         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
4117                 if ((playlist = (*i)->playlist()) == 0) {
4118                         continue;
4119                 }
4120                 playlist->clear_changes ();
4121                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4122                 _session->add_command (new StatefulDiffCommand (playlist));
4123
4124                 ++ri;
4125                 if (ri == new_regions.end()) {
4126                         --ri;
4127                 }
4128         }
4129
4130         commit_reversible_command ();
4131 }
4132
4133 void
4134 Editor::reset_point_selection ()
4135 {
4136         /* reset all selected points to the relevant default value */
4137
4138         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4139
4140                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>((*i).track);
4141
4142                 if (atv) {
4143                         atv->reset_objects (selection->points);
4144                 }
4145         }
4146 }
4147
4148 void
4149 Editor::center_playhead ()
4150 {
4151         float page = _canvas_width * frames_per_unit;
4152         center_screen_internal (playhead_cursor->current_frame, page);
4153 }
4154
4155 void
4156 Editor::center_edit_point ()
4157 {
4158         float page = _canvas_width * frames_per_unit;
4159         center_screen_internal (get_preferred_edit_position(), page);
4160 }
4161
4162 /** Caller must begin and commit a reversible command */
4163 void
4164 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4165 {
4166         playlist->clear_changes ();
4167         playlist->clear ();
4168         _session->add_command (new StatefulDiffCommand (playlist));
4169 }
4170
4171 void
4172 Editor::nudge_track (bool use_edit, bool forwards)
4173 {
4174         boost::shared_ptr<Playlist> playlist;
4175         framepos_t distance;
4176         framepos_t next_distance;
4177         framepos_t start;
4178
4179         if (use_edit) {
4180                 start = get_preferred_edit_position();
4181         } else {
4182                 start = 0;
4183         }
4184
4185         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4186                 return;
4187         }
4188
4189         if (selection->tracks.empty()) {
4190                 return;
4191         }
4192
4193         begin_reversible_command (_("nudge track"));
4194
4195         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
4196
4197         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
4198
4199                 if ((playlist = (*i)->playlist()) == 0) {
4200                         continue;
4201                 }
4202
4203                 playlist->clear_changes ();
4204                 playlist->clear_owned_changes ();
4205
4206                 playlist->nudge_after (start, distance, forwards);
4207
4208                 vector<Command*> cmds;
4209
4210                 playlist->rdiff (cmds);
4211                 _session->add_commands (cmds);
4212
4213                 _session->add_command (new StatefulDiffCommand (playlist));
4214         }
4215
4216         commit_reversible_command ();
4217 }
4218
4219 void
4220 Editor::remove_last_capture ()
4221 {
4222         vector<string> choices;
4223         string prompt;
4224
4225         if (!_session) {
4226                 return;
4227         }
4228
4229         if (Config->get_verify_remove_last_capture()) {
4230                 prompt  = _("Do you really want to destroy the last capture?"
4231                             "\n(This is destructive and cannot be undone)");
4232
4233                 choices.push_back (_("No, do nothing."));
4234                 choices.push_back (_("Yes, destroy it."));
4235
4236                 Gtkmm2ext::Choice prompter (_("Destroy last capture"), prompt, choices);
4237
4238                 if (prompter.run () == 1) {
4239                         _session->remove_last_capture ();
4240                         _regions->redisplay ();
4241                 }
4242
4243         } else {
4244                 _session->remove_last_capture();
4245                 _regions->redisplay ();
4246         }
4247 }
4248
4249 void
4250 Editor::normalize_region ()
4251 {
4252         if (!_session) {
4253                 return;
4254         }
4255
4256         RegionSelection rs = get_regions_from_selection_and_entered ();
4257
4258         if (rs.empty()) {
4259                 return;
4260         }
4261
4262         NormalizeDialog dialog (rs.size() > 1);
4263
4264         if (dialog.run () == RESPONSE_CANCEL) {
4265                 return;
4266         }
4267
4268         set_canvas_cursor (_cursors->wait);
4269         gdk_flush ();
4270
4271         /* XXX: should really only count audio regions here */
4272         int const regions = rs.size ();
4273
4274         /* Make a list of the selected audio regions' maximum amplitudes, and also
4275            obtain the maximum amplitude of them all.
4276         */
4277         list<double> max_amps;
4278         double max_amp = 0;
4279         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
4280                 AudioRegionView const * arv = dynamic_cast<AudioRegionView const *> (*i);
4281                 if (arv) {
4282                         dialog.descend (1.0 / regions);
4283                         double const a = arv->audio_region()->maximum_amplitude (&dialog);
4284
4285                         if (a == -1) {
4286                                 /* the user cancelled the operation */
4287                                 set_canvas_cursor (current_canvas_cursor);
4288                                 return;
4289                         }
4290
4291                         max_amps.push_back (a);
4292                         max_amp = max (max_amp, a);
4293                         dialog.ascend ();
4294                 }
4295         }
4296
4297         begin_reversible_command (_("normalize"));
4298
4299         list<double>::const_iterator a = max_amps.begin ();
4300
4301         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4302                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*r);
4303                 if (!arv) {
4304                         continue;
4305                 }
4306
4307                 arv->region()->clear_changes ();
4308
4309                 double const amp = dialog.normalize_individually() ? *a : max_amp;
4310
4311                 arv->audio_region()->normalize (amp, dialog.target ());
4312                 _session->add_command (new StatefulDiffCommand (arv->region()));
4313
4314                 ++a;
4315         }
4316
4317         commit_reversible_command ();
4318         set_canvas_cursor (current_canvas_cursor);
4319 }
4320
4321
4322 void
4323 Editor::reset_region_scale_amplitude ()
4324 {
4325         if (!_session) {
4326                 return;
4327         }
4328
4329         RegionSelection rs = get_regions_from_selection_and_entered ();
4330
4331         if (rs.empty()) {
4332                 return;
4333         }
4334
4335         begin_reversible_command ("reset gain");
4336
4337         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4338                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4339                 if (!arv)
4340                         continue;
4341                 arv->region()->clear_changes ();
4342                 arv->audio_region()->set_scale_amplitude (1.0f);
4343                 _session->add_command (new StatefulDiffCommand (arv->region()));
4344         }
4345
4346         commit_reversible_command ();
4347 }
4348
4349 void
4350 Editor::adjust_region_gain (bool up)
4351 {
4352         RegionSelection rs = get_regions_from_selection_and_entered ();
4353
4354         if (!_session || rs.empty()) {
4355                 return;
4356         }
4357
4358         begin_reversible_command ("adjust region gain");
4359
4360         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4361                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4362                 if (!arv) {
4363                         continue;
4364                 }
4365
4366                 arv->region()->clear_changes ();
4367
4368                 double dB = accurate_coefficient_to_dB (arv->audio_region()->scale_amplitude ());
4369
4370                 if (up) {
4371                         dB += 1;
4372                 } else {
4373                         dB -= 1;
4374                 }
4375
4376                 arv->audio_region()->set_scale_amplitude (dB_to_coefficient (dB));
4377                 _session->add_command (new StatefulDiffCommand (arv->region()));
4378         }
4379
4380         commit_reversible_command ();
4381 }
4382
4383
4384 void
4385 Editor::reverse_region ()
4386 {
4387         if (!_session) {
4388                 return;
4389         }
4390
4391         Reverse rev (*_session);
4392         apply_filter (rev, _("reverse regions"));
4393 }
4394
4395 void
4396 Editor::strip_region_silence ()
4397 {
4398         if (!_session) {
4399                 return;
4400         }
4401
4402         RegionSelection rs = get_regions_from_selection_and_entered ();
4403
4404         if (rs.empty()) {
4405                 return;
4406         }
4407
4408         std::list<RegionView*> audio_only;
4409
4410         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4411                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*i);
4412                 if (arv) {
4413                         audio_only.push_back (arv);
4414                 }
4415         }
4416
4417         StripSilenceDialog d (_session, audio_only);
4418         int const r = d.run ();
4419
4420         d.drop_rects ();
4421
4422         if (r == Gtk::RESPONSE_OK) {
4423                 ARDOUR::AudioIntervalMap silences;
4424                 d.silences (silences);
4425                 StripSilence s (*_session, silences, d.fade_length());
4426                 apply_filter (s, _("strip silence"), &d);
4427         }
4428 }
4429
4430 Command*
4431 Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv)
4432 {
4433         Evoral::Sequence<Evoral::MusicalTime>::Notes selected;
4434         mrv.selection_as_notelist (selected, true);
4435
4436         vector<Evoral::Sequence<Evoral::MusicalTime>::Notes> v;
4437         v.push_back (selected);
4438
4439         framepos_t pos_frames = mrv.midi_region()->position();
4440         double     pos_beats  = _session->tempo_map().framewalk_to_beats(0, pos_frames);
4441
4442         return op (mrv.midi_region()->model(), pos_beats, v);
4443 }
4444
4445 void
4446 Editor::apply_midi_note_edit_op (MidiOperator& op)
4447 {
4448         Command* cmd;
4449
4450         RegionSelection rs = get_regions_from_selection_and_entered ();
4451
4452         if (rs.empty()) {
4453                 return;
4454         }
4455
4456         begin_reversible_command (op.name ());
4457
4458         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4459                 RegionSelection::iterator tmp = r;
4460                 ++tmp;
4461
4462                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4463
4464                 if (mrv) {
4465                         cmd = apply_midi_note_edit_op_to_region (op, *mrv);
4466                         if (cmd) {
4467                                 (*cmd)();
4468                                 _session->add_command (cmd);
4469                         }
4470                 }
4471
4472                 r = tmp;
4473         }
4474
4475         commit_reversible_command ();
4476 }
4477
4478 void
4479 Editor::fork_region ()
4480 {
4481         RegionSelection rs = get_regions_from_selection_and_entered ();
4482
4483         if (rs.empty()) {
4484                 return;
4485         }
4486
4487         begin_reversible_command (_("Fork Region(s)"));
4488
4489         set_canvas_cursor (_cursors->wait);
4490         gdk_flush ();
4491
4492         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4493                 RegionSelection::iterator tmp = r;
4494                 ++tmp;
4495
4496                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*>(*r);
4497
4498                 if (mrv) {
4499                         boost::shared_ptr<Playlist> playlist = mrv->region()->playlist();
4500                         boost::shared_ptr<MidiRegion> newregion = mrv->midi_region()->clone ();
4501
4502                         playlist->clear_changes ();
4503                         playlist->replace_region (mrv->region(), newregion, mrv->region()->position());
4504                         _session->add_command(new StatefulDiffCommand (playlist));
4505                 }
4506
4507                 r = tmp;
4508         }
4509
4510         commit_reversible_command ();
4511
4512         set_canvas_cursor (current_canvas_cursor);
4513 }
4514
4515 void
4516 Editor::quantize_region ()
4517 {
4518         int selected_midi_region_cnt = 0;
4519
4520         if (!_session) {
4521                 return;
4522         }
4523
4524         RegionSelection rs = get_regions_from_selection_and_entered ();
4525
4526         if (rs.empty()) {
4527                 return;
4528         }
4529
4530         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4531                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4532                 if (mrv) {
4533                         selected_midi_region_cnt++;
4534                 }
4535         }
4536
4537         if (selected_midi_region_cnt == 0) {
4538                 return;
4539         }
4540
4541         QuantizeDialog* qd = new QuantizeDialog (*this);
4542
4543         qd->present ();
4544         const int r = qd->run ();
4545         qd->hide ();
4546
4547         if (r == Gtk::RESPONSE_OK) {
4548                 Quantize quant (*_session, Plain,
4549                                 qd->snap_start(), qd->snap_end(),
4550                                 qd->start_grid_size(), qd->end_grid_size(),
4551                                 qd->strength(), qd->swing(), qd->threshold());
4552
4553                 apply_midi_note_edit_op (quant);
4554         }
4555 }
4556
4557 void
4558 Editor::insert_patch_change (bool from_context)
4559 {
4560         RegionSelection rs = get_regions_from_selection_and_entered ();
4561
4562         if (rs.empty ()) {
4563                 return;
4564         }
4565
4566         framepos_t p;
4567
4568         if (!from_context || (_edit_point != EditAtMouse)) {
4569                 p = get_preferred_edit_position (false);
4570         } else {
4571                 p = event_frame (&context_click_event, 0, 0);
4572         }
4573
4574         Evoral::PatchChange<Evoral::MusicalTime> empty (0, 0, 0, 0);
4575         PatchChangeDialog d (0, _session, empty, Gtk::Stock::ADD);
4576
4577         if (d.run() == RESPONSE_CANCEL) {
4578                 return;
4579         }
4580
4581         for (RegionSelection::iterator i = rs.begin (); i != rs.end(); ++i) {
4582                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*i);
4583                 if (mrv) {
4584                         if (p >= mrv->region()->first_frame() && p <= mrv->region()->last_frame()) {
4585                                 mrv->add_patch_change (p - mrv->region()->position(), d.patch ());
4586                         }
4587                 }
4588         }
4589 }
4590
4591 void
4592 Editor::apply_filter (Filter& filter, string command, ProgressReporter* progress)
4593 {
4594         RegionSelection rs = get_regions_from_selection_and_entered ();
4595
4596         if (rs.empty()) {
4597                 return;
4598         }
4599
4600         begin_reversible_command (command);
4601
4602         set_canvas_cursor (_cursors->wait);
4603         gdk_flush ();
4604
4605         int n = 0;
4606         int const N = rs.size ();
4607
4608         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4609                 RegionSelection::iterator tmp = r;
4610                 ++tmp;
4611
4612                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4613                 if (arv) {
4614                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4615
4616                         if (progress) {
4617                                 progress->descend (1.0 / N);
4618                         }
4619
4620                         if (arv->audio_region()->apply (filter, progress) == 0) {
4621
4622                                 playlist->clear_changes ();
4623
4624                                 if (filter.results.empty ()) {
4625
4626                                         /* no regions returned; remove the old one */
4627                                         playlist->remove_region (arv->region ());
4628
4629                                 } else {
4630
4631                                         std::vector<boost::shared_ptr<Region> >::iterator res = filter.results.begin ();
4632
4633                                         /* first region replaces the old one */
4634                                         playlist->replace_region (arv->region(), *res, (*res)->position());
4635                                         ++res;
4636
4637                                         /* add the rest */
4638                                         while (res != filter.results.end()) {
4639                                                 playlist->add_region (*res, (*res)->position());
4640                                                 ++res;
4641                                         }
4642
4643                                 }
4644
4645                                 _session->add_command(new StatefulDiffCommand (playlist));
4646                         } else {
4647                                 goto out;
4648                         }
4649
4650                         if (progress) {
4651                                 progress->ascend ();
4652                         }
4653                 }
4654
4655                 r = tmp;
4656                 ++n;
4657         }
4658
4659         commit_reversible_command ();
4660
4661   out:
4662         set_canvas_cursor (current_canvas_cursor);
4663 }
4664
4665 void
4666 Editor::external_edit_region ()
4667 {
4668         /* more to come */
4669 }
4670
4671 void
4672 Editor::reset_region_gain_envelopes ()
4673 {
4674         RegionSelection rs = get_regions_from_selection_and_entered ();
4675
4676         if (!_session || rs.empty()) {
4677                 return;
4678         }
4679
4680         _session->begin_reversible_command (_("reset region gain"));
4681
4682         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4683                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4684                 if (arv) {
4685                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
4686                         XMLNode& before (alist->get_state());
4687
4688                         arv->audio_region()->set_default_envelope ();
4689                         _session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
4690                 }
4691         }
4692
4693         _session->commit_reversible_command ();
4694 }
4695
4696 void
4697 Editor::toggle_gain_envelope_visibility ()
4698 {
4699         if (_ignore_region_action) {
4700                 return;
4701         }
4702
4703         RegionSelection rs = get_regions_from_selection_and_entered ();
4704
4705         if (!_session || rs.empty()) {
4706                 return;
4707         }
4708
4709         _session->begin_reversible_command (_("region gain envelope visible"));
4710
4711         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4712                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4713                 if (arv) {
4714                         arv->region()->clear_changes ();
4715                         arv->set_envelope_visible (!arv->envelope_visible());
4716                         _session->add_command (new StatefulDiffCommand (arv->region()));
4717                 }
4718         }
4719
4720         _session->commit_reversible_command ();
4721 }
4722
4723 void
4724 Editor::toggle_gain_envelope_active ()
4725 {
4726         if (_ignore_region_action) {
4727                 return;
4728         }
4729
4730         RegionSelection rs = get_regions_from_selection_and_entered ();
4731
4732         if (!_session || rs.empty()) {
4733                 return;
4734         }
4735
4736         _session->begin_reversible_command (_("region gain envelope active"));
4737
4738         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4739                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4740                 if (arv) {
4741                         arv->region()->clear_changes ();
4742                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
4743                         _session->add_command (new StatefulDiffCommand (arv->region()));
4744                 }
4745         }
4746
4747         _session->commit_reversible_command ();
4748 }
4749
4750 void
4751 Editor::toggle_region_lock ()
4752 {
4753         if (_ignore_region_action) {
4754                 return;
4755         }
4756
4757         RegionSelection rs = get_regions_from_selection_and_entered ();
4758
4759         if (!_session || rs.empty()) {
4760                 return;
4761         }
4762
4763         _session->begin_reversible_command (_("toggle region lock"));
4764
4765         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4766                 (*i)->region()->clear_changes ();
4767                 (*i)->region()->set_locked (!(*i)->region()->locked());
4768                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
4769         }
4770
4771         _session->commit_reversible_command ();
4772 }
4773
4774 void
4775 Editor::toggle_region_lock_style ()
4776 {
4777         if (_ignore_region_action) {
4778                 return;
4779         }
4780
4781         RegionSelection rs = get_regions_from_selection_and_entered ();
4782
4783         if (!_session || rs.empty()) {
4784                 return;
4785         }
4786
4787         _session->begin_reversible_command (_("region lock style"));
4788
4789         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4790                 (*i)->region()->clear_changes ();
4791                 PositionLockStyle const ns = (*i)->region()->position_lock_style() == AudioTime ? MusicTime : AudioTime;
4792                 (*i)->region()->set_position_lock_style (ns);
4793                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
4794         }
4795
4796         _session->commit_reversible_command ();
4797 }
4798
4799 void
4800 Editor::toggle_opaque_region ()
4801 {
4802         if (_ignore_region_action) {
4803                 return;
4804         }
4805
4806         RegionSelection rs = get_regions_from_selection_and_entered ();
4807
4808         if (!_session || rs.empty()) {
4809                 return;
4810         }
4811
4812         _session->begin_reversible_command (_("change region opacity"));
4813
4814         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4815                 (*i)->region()->clear_changes ();
4816                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
4817                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
4818         }
4819
4820         _session->commit_reversible_command ();
4821 }
4822
4823 void
4824 Editor::toggle_record_enable ()
4825 {
4826         bool new_state = false;
4827         bool first = true;
4828         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4829                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
4830                 if (!rtav)
4831                         continue;
4832                 if (!rtav->is_track())
4833                         continue;
4834
4835                 if (first) {
4836                         new_state = !rtav->track()->record_enabled();
4837                         first = false;
4838                 }
4839
4840                 rtav->track()->set_record_enabled (new_state, this);
4841         }
4842 }
4843
4844 void
4845 Editor::toggle_solo ()
4846 {
4847         bool new_state = false;
4848         bool first = true;
4849         boost::shared_ptr<RouteList> rl (new RouteList);
4850
4851         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4852                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
4853
4854                 if (!rtav) {
4855                         continue;
4856                 }
4857
4858                 if (first) {
4859                         new_state = !rtav->route()->soloed ();
4860                         first = false;
4861                 }
4862
4863                 rl->push_back (rtav->route());
4864         }
4865
4866         _session->set_solo (rl, new_state, Session::rt_cleanup, true);
4867 }
4868
4869 void
4870 Editor::toggle_mute ()
4871 {
4872         bool new_state = false;
4873         bool first = true;
4874         boost::shared_ptr<RouteList> rl (new RouteList);
4875
4876         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4877                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
4878
4879                 if (!rtav) {
4880                         continue;
4881                 }
4882
4883                 if (first) {
4884                         new_state = !rtav->route()->muted();
4885                         first = false;
4886                 }
4887
4888                 rl->push_back (rtav->route());
4889         }
4890
4891         _session->set_mute (rl, new_state, Session::rt_cleanup, true);
4892 }
4893
4894 void
4895 Editor::toggle_solo_isolate ()
4896 {
4897 }
4898
4899 void
4900 Editor::set_fade_length (bool in)
4901 {
4902         RegionSelection rs = get_regions_from_selection_and_entered ();
4903
4904         if (rs.empty()) {
4905                 return;
4906         }
4907
4908         /* we need a region to measure the offset from the start */
4909
4910         RegionView* rv = rs.front ();
4911
4912         framepos_t pos = get_preferred_edit_position();
4913         framepos_t len;
4914         char const * cmd;
4915
4916         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
4917                 /* edit point is outside the relevant region */
4918                 return;
4919         }
4920
4921         if (in) {
4922                 if (pos <= rv->region()->position()) {
4923                         /* can't do it */
4924                         return;
4925                 }
4926                 len = pos - rv->region()->position();
4927                 cmd = _("set fade in length");
4928         } else {
4929                 if (pos >= rv->region()->last_frame()) {
4930                         /* can't do it */
4931                         return;
4932                 }
4933                 len = rv->region()->last_frame() - pos;
4934                 cmd = _("set fade out length");
4935         }
4936
4937         begin_reversible_command (cmd);
4938
4939         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4940                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4941
4942                 if (!tmp) {
4943                         return;
4944                 }
4945
4946                 boost::shared_ptr<AutomationList> alist;
4947                 if (in) {
4948                         alist = tmp->audio_region()->fade_in();
4949                 } else {
4950                         alist = tmp->audio_region()->fade_out();
4951                 }
4952
4953                 XMLNode &before = alist->get_state();
4954
4955                 if (in) {
4956                         tmp->audio_region()->set_fade_in_length (len);
4957                         tmp->audio_region()->set_fade_in_active (true);
4958                 } else {
4959                         tmp->audio_region()->set_fade_out_length (len);
4960                         tmp->audio_region()->set_fade_out_active (true);
4961                 }
4962
4963                 XMLNode &after = alist->get_state();
4964                 _session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
4965         }
4966
4967         commit_reversible_command ();
4968 }
4969
4970 void
4971 Editor::set_fade_in_shape (FadeShape shape)
4972 {
4973         RegionSelection rs = get_regions_from_selection_and_entered ();
4974
4975         if (rs.empty()) {
4976                 return;
4977         }
4978
4979         begin_reversible_command (_("set fade in shape"));
4980
4981         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4982                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4983
4984                 if (!tmp) {
4985                         return;
4986                 }
4987
4988                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
4989                 XMLNode &before = alist->get_state();
4990
4991                 tmp->audio_region()->set_fade_in_shape (shape);
4992
4993                 XMLNode &after = alist->get_state();
4994                 _session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
4995         }
4996
4997         commit_reversible_command ();
4998
4999 }
5000
5001 void
5002 Editor::set_fade_out_shape (FadeShape shape)
5003 {
5004         RegionSelection rs = get_regions_from_selection_and_entered ();
5005
5006         if (rs.empty()) {
5007                 return;
5008         }
5009
5010         begin_reversible_command (_("set fade out shape"));
5011
5012         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5013                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5014
5015                 if (!tmp) {
5016                         return;
5017                 }
5018
5019                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
5020                 XMLNode &before = alist->get_state();
5021
5022                 tmp->audio_region()->set_fade_out_shape (shape);
5023
5024                 XMLNode &after = alist->get_state();
5025                 _session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5026         }
5027
5028         commit_reversible_command ();
5029 }
5030
5031 void
5032 Editor::set_fade_in_active (bool yn)
5033 {
5034         RegionSelection rs = get_regions_from_selection_and_entered ();
5035
5036         if (rs.empty()) {
5037                 return;
5038         }
5039
5040         begin_reversible_command (_("set fade in active"));
5041
5042         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5043                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5044
5045                 if (!tmp) {
5046                         return;
5047                 }
5048
5049
5050                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5051
5052                 ar->clear_changes ();
5053                 ar->set_fade_in_active (yn);
5054                 _session->add_command (new StatefulDiffCommand (ar));
5055         }
5056
5057         commit_reversible_command ();
5058 }
5059
5060 void
5061 Editor::set_fade_out_active (bool yn)
5062 {
5063         RegionSelection rs = get_regions_from_selection_and_entered ();
5064
5065         if (rs.empty()) {
5066                 return;
5067         }
5068
5069         begin_reversible_command (_("set fade out active"));
5070
5071         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5072                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5073
5074                 if (!tmp) {
5075                         return;
5076                 }
5077
5078                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5079
5080                 ar->clear_changes ();
5081                 ar->set_fade_out_active (yn);
5082                 _session->add_command(new StatefulDiffCommand (ar));
5083         }
5084
5085         commit_reversible_command ();
5086 }
5087
5088 void
5089 Editor::toggle_region_fades (int dir)
5090 {
5091         boost::shared_ptr<AudioRegion> ar;
5092         bool yn = false;
5093
5094         RegionSelection rs = get_regions_from_selection_and_entered ();
5095
5096         if (rs.empty()) {
5097                 return;
5098         }
5099
5100         RegionSelection::iterator i;
5101         for (i = rs.begin(); i != rs.end(); ++i) {
5102                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5103                         if (dir == -1) {
5104                                 yn = ar->fade_out_active ();
5105                         } else {
5106                                 yn = ar->fade_in_active ();
5107                         }
5108                         break;
5109                 }
5110         }
5111
5112         if (i == rs.end()) {
5113                 return;
5114         }
5115
5116         /* XXX should this undo-able? */
5117
5118         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5119                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5120                         continue;
5121                 }
5122                 if (dir == 1 || dir == 0) {
5123                         ar->set_fade_in_active (!yn);
5124                 }
5125
5126                 if (dir == -1 || dir == 0) {
5127                         ar->set_fade_out_active (!yn);
5128                 }
5129         }
5130 }
5131
5132
5133 /** Update region fade visibility after its configuration has been changed */
5134 void
5135 Editor::update_region_fade_visibility ()
5136 {
5137         bool _fade_visibility = _session->config.get_show_region_fades ();
5138
5139         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5140                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5141                 if (v) {
5142                         if (_fade_visibility) {
5143                                 v->audio_view()->show_all_fades ();
5144                         } else {
5145                                 v->audio_view()->hide_all_fades ();
5146                         }
5147                 }
5148         }
5149 }
5150
5151 /** Update crossfade visibility after its configuration has been changed */
5152 void
5153 Editor::update_xfade_visibility ()
5154 {
5155         _xfade_visibility = _session->config.get_xfades_visible ();
5156
5157         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5158                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5159                 if (v) {
5160                         if (_xfade_visibility) {
5161                                 v->show_all_xfades ();
5162                         } else {
5163                                 v->hide_all_xfades ();
5164                         }
5165                 }
5166         }
5167 }
5168
5169 void
5170 Editor::set_edit_point ()
5171 {
5172         framepos_t where;
5173         bool ignored;
5174
5175         if (!mouse_frame (where, ignored)) {
5176                 return;
5177         }
5178
5179         snap_to (where);
5180
5181         if (selection->markers.empty()) {
5182
5183                 mouse_add_new_marker (where);
5184
5185         } else {
5186                 bool ignored;
5187
5188                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5189
5190                 if (loc) {
5191                         loc->move_to (where);
5192                 }
5193         }
5194 }
5195
5196 void
5197 Editor::set_playhead_cursor ()
5198 {
5199         if (entered_marker) {
5200                 _session->request_locate (entered_marker->position(), _session->transport_rolling());
5201         } else {
5202                 framepos_t where;
5203                 bool ignored;
5204
5205                 if (!mouse_frame (where, ignored)) {
5206                         return;
5207                 }
5208
5209                 snap_to (where);
5210
5211                 if (_session) {
5212                         _session->request_locate (where, _session->transport_rolling());
5213                 }
5214         }
5215 }
5216
5217 void
5218 Editor::split_region ()
5219 {
5220         if (((mouse_mode == MouseRange) ||
5221              (mouse_mode != MouseObject && _join_object_range_state == JOIN_OBJECT_RANGE_RANGE)) &&
5222             !selection->time.empty()) {
5223                 separate_regions_between (selection->time);
5224                 return;
5225         }
5226
5227         RegionSelection rs = get_regions_from_selection_and_edit_point ();
5228
5229         framepos_t where = get_preferred_edit_position ();
5230
5231         if (rs.empty()) {
5232                 return;
5233         }
5234
5235         split_regions_at (where, rs);
5236 }
5237
5238 void
5239 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
5240 {
5241         if (entered_track && mouse_mode == MouseObject) {
5242                 if (!selection->tracks.empty()) {
5243                         if (!selection->selected (entered_track)) {
5244                                 selection->add (entered_track);
5245                         }
5246                 } else {
5247                         /* there is no selection, but this operation requires/prefers selected objects */
5248
5249                         if (op_really_wants_one_track_if_none_are_selected) {
5250                                 selection->set (entered_track);
5251                         }
5252                 }
5253         }
5254 }
5255
5256 struct EditorOrderRouteSorter {
5257     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5258             /* use of ">" forces the correct sort order */
5259             return a->order_key ("editor") < b->order_key ("editor");
5260     }
5261 };
5262
5263 void
5264 Editor::select_next_route()
5265 {
5266         if (selection->tracks.empty()) {
5267                 selection->set (track_views.front());
5268                 return;
5269         }
5270
5271         TimeAxisView* current = selection->tracks.front();
5272
5273         RouteUI *rui;
5274         do {
5275                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5276                         if (*i == current) {
5277                                 ++i;
5278                                 if (i != track_views.end()) {
5279                                         current = (*i);
5280                                 } else {
5281                                         current = (*(track_views.begin()));
5282                                         //selection->set (*(track_views.begin()));
5283                                 }
5284                                 break;
5285                         }
5286                 }
5287                 rui = dynamic_cast<RouteUI *>(current);
5288         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5289
5290         selection->set(current);
5291
5292         ensure_track_visible(current);
5293 }
5294
5295 void
5296 Editor::select_prev_route()
5297 {
5298         if (selection->tracks.empty()) {
5299                 selection->set (track_views.front());
5300                 return;
5301         }
5302
5303         TimeAxisView* current = selection->tracks.front();
5304
5305         RouteUI *rui;
5306         do {
5307                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5308                         if (*i == current) {
5309                                 ++i;
5310                                 if (i != track_views.rend()) {
5311                                         current = (*i);
5312                                 } else {
5313                                         current = *(track_views.rbegin());
5314                                 }
5315                                 break;
5316                         }
5317                 }
5318                 rui = dynamic_cast<RouteUI *>(current);
5319         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5320
5321         selection->set (current);
5322
5323         ensure_track_visible(current);
5324 }
5325
5326 void
5327 Editor::ensure_track_visible(TimeAxisView *track)
5328 {
5329         if (track->hidden())
5330                 return;
5331
5332         double const current_view_min_y = vertical_adjustment.get_value();
5333         double const current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - canvas_timebars_vsize;
5334
5335         double const track_min_y = track->y_position ();
5336         double const track_max_y = track->y_position () + track->effective_height ();
5337
5338         if (track_min_y >= current_view_min_y &&
5339             track_max_y <= current_view_max_y) {
5340                 return;
5341         }
5342
5343         double new_value;
5344
5345         if (track_min_y < current_view_min_y) {
5346                 // Track is above the current view
5347                 new_value = track_min_y;
5348         } else {
5349                 // Track is below the current view
5350                 new_value = track->y_position () + track->effective_height() + canvas_timebars_vsize - vertical_adjustment.get_page_size();
5351         }
5352
5353         vertical_adjustment.set_value(new_value);
5354 }
5355
5356 void
5357 Editor::set_loop_from_selection (bool play)
5358 {
5359         if (_session == 0 || selection->time.empty()) {
5360                 return;
5361         }
5362
5363         framepos_t start = selection->time[clicked_selection].start;
5364         framepos_t end = selection->time[clicked_selection].end;
5365
5366         set_loop_range (start, end,  _("set loop range from selection"));
5367
5368         if (play) {
5369                 _session->request_play_loop (true);
5370                 _session->request_locate (start, true);
5371         }
5372 }
5373
5374 void
5375 Editor::set_loop_from_edit_range (bool play)
5376 {
5377         if (_session == 0) {
5378                 return;
5379         }
5380
5381         framepos_t start;
5382         framepos_t end;
5383
5384         if (!get_edit_op_range (start, end)) {
5385                 return;
5386         }
5387
5388         set_loop_range (start, end,  _("set loop range from edit range"));
5389
5390         if (play) {
5391                 _session->request_play_loop (true);
5392                 _session->request_locate (start, true);
5393         }
5394 }
5395
5396 void
5397 Editor::set_loop_from_region (bool play)
5398 {
5399         framepos_t start = max_framepos;
5400         framepos_t end = 0;
5401
5402         RegionSelection rs = get_regions_from_selection_and_entered ();
5403
5404         if (rs.empty()) {
5405                 return;
5406         }
5407
5408         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5409                 if ((*i)->region()->position() < start) {
5410                         start = (*i)->region()->position();
5411                 }
5412                 if ((*i)->region()->last_frame() + 1 > end) {
5413                         end = (*i)->region()->last_frame() + 1;
5414                 }
5415         }
5416
5417         set_loop_range (start, end, _("set loop range from region"));
5418
5419         if (play) {
5420                 _session->request_play_loop (true);
5421                 _session->request_locate (start, true);
5422         }
5423 }
5424
5425 void
5426 Editor::set_punch_from_selection ()
5427 {
5428         if (_session == 0 || selection->time.empty()) {
5429                 return;
5430         }
5431
5432         framepos_t start = selection->time[clicked_selection].start;
5433         framepos_t end = selection->time[clicked_selection].end;
5434
5435         set_punch_range (start, end,  _("set punch range from selection"));
5436 }
5437
5438 void
5439 Editor::set_punch_from_edit_range ()
5440 {
5441         if (_session == 0) {
5442                 return;
5443         }
5444
5445         framepos_t start;
5446         framepos_t end;
5447
5448         if (!get_edit_op_range (start, end)) {
5449                 return;
5450         }
5451
5452         set_punch_range (start, end,  _("set punch range from edit range"));
5453 }
5454
5455 void
5456 Editor::set_punch_from_region ()
5457 {
5458         framepos_t start = max_framepos;
5459         framepos_t end = 0;
5460
5461         RegionSelection rs = get_regions_from_selection_and_entered ();
5462
5463         if (rs.empty()) {
5464                 return;
5465         }
5466
5467         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5468                 if ((*i)->region()->position() < start) {
5469                         start = (*i)->region()->position();
5470                 }
5471                 if ((*i)->region()->last_frame() + 1 > end) {
5472                         end = (*i)->region()->last_frame() + 1;
5473                 }
5474         }
5475
5476         set_punch_range (start, end, _("set punch range from region"));
5477 }
5478
5479 void
5480 Editor::pitch_shift_region ()
5481 {
5482         RegionSelection rs = get_regions_from_selection_and_entered ();
5483
5484         RegionSelection audio_rs;
5485         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5486                 if (dynamic_cast<AudioRegionView*> (*i)) {
5487                         audio_rs.push_back (*i);
5488                 }
5489         }
5490
5491         if (audio_rs.empty()) {
5492                 return;
5493         }
5494
5495         pitch_shift (audio_rs, 1.2);
5496 }
5497
5498 void
5499 Editor::transpose_region ()
5500 {
5501         RegionSelection rs = get_regions_from_selection_and_entered ();
5502
5503         list<MidiRegionView*> midi_region_views;
5504         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5505                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*i);
5506                 if (mrv) {
5507                         midi_region_views.push_back (mrv);
5508                 }
5509         }
5510
5511         TransposeDialog d;
5512         int const r = d.run ();
5513         if (r != RESPONSE_ACCEPT) {
5514                 return;
5515         }
5516
5517         for (list<MidiRegionView*>::iterator i = midi_region_views.begin(); i != midi_region_views.end(); ++i) {
5518                 (*i)->midi_region()->transpose (d.semitones ());
5519         }
5520 }
5521
5522 void
5523 Editor::set_tempo_from_region ()
5524 {
5525         RegionSelection rs = get_regions_from_selection_and_entered ();
5526
5527         if (!_session || rs.empty()) {
5528                 return;
5529         }
5530
5531         RegionView* rv = rs.front();
5532
5533         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5534 }
5535
5536 void
5537 Editor::use_range_as_bar ()
5538 {
5539         framepos_t start, end;
5540         if (get_edit_op_range (start, end)) {
5541                 define_one_bar (start, end);
5542         }
5543 }
5544
5545 void
5546 Editor::define_one_bar (framepos_t start, framepos_t end)
5547 {
5548         framepos_t length = end - start;
5549
5550         const Meter& m (_session->tempo_map().meter_at (start));
5551
5552         /* length = 1 bar */
5553
5554         /* now we want frames per beat.
5555            we have frames per bar, and beats per bar, so ...
5556         */
5557
5558         /* XXXX METER MATH */
5559
5560         double frames_per_beat = length / m.divisions_per_bar();
5561
5562         /* beats per minute = */
5563
5564         double beats_per_minute = (_session->frame_rate() * 60.0) / frames_per_beat;
5565
5566         /* now decide whether to:
5567
5568             (a) set global tempo
5569             (b) add a new tempo marker
5570
5571         */
5572
5573         const TempoSection& t (_session->tempo_map().tempo_section_at (start));
5574
5575         bool do_global = false;
5576
5577         if ((_session->tempo_map().n_tempos() == 1) && (_session->tempo_map().n_meters() == 1)) {
5578
5579                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5580                    at the start, or create a new marker
5581                 */
5582
5583                 vector<string> options;
5584                 options.push_back (_("Cancel"));
5585                 options.push_back (_("Add new marker"));
5586                 options.push_back (_("Set global tempo"));
5587
5588                 Choice c (
5589                         _("Define one bar"),
5590                         _("Do you want to set the global tempo or add a new tempo marker?"),
5591                         options
5592                         );
5593
5594                 c.set_default_response (2);
5595
5596                 switch (c.run()) {
5597                 case 0:
5598                         return;
5599
5600                 case 2:
5601                         do_global = true;
5602                         break;
5603
5604                 default:
5605                         do_global = false;
5606                 }
5607
5608         } else {
5609
5610                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5611                    if the marker is at the region starter, change it, otherwise add
5612                    a new tempo marker
5613                 */
5614         }
5615
5616         begin_reversible_command (_("set tempo from region"));
5617         XMLNode& before (_session->tempo_map().get_state());
5618
5619         if (do_global) {
5620                 _session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5621         } else if (t.frame() == start) {
5622                 _session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5623         } else {
5624                 _session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5625         }
5626
5627         XMLNode& after (_session->tempo_map().get_state());
5628
5629         _session->add_command (new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
5630         commit_reversible_command ();
5631 }
5632
5633 void
5634 Editor::split_region_at_transients ()
5635 {
5636         AnalysisFeatureList positions;
5637
5638         RegionSelection rs = get_regions_from_selection_and_entered ();
5639
5640         if (!_session || rs.empty()) {
5641                 return;
5642         }
5643
5644         _session->begin_reversible_command (_("split regions"));
5645
5646         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5647
5648                 RegionSelection::iterator tmp;
5649
5650                 tmp = i;
5651                 ++tmp;
5652
5653                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5654
5655                 if (ar && (ar->get_transients (positions) == 0)) {
5656                         split_region_at_points ((*i)->region(), positions, true);
5657                         positions.clear ();
5658                 }
5659
5660                 i = tmp;
5661         }
5662
5663         _session->commit_reversible_command ();
5664
5665 }
5666
5667 void
5668 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret, bool select_new)
5669 {
5670         bool use_rhythmic_rodent = false;
5671
5672         boost::shared_ptr<Playlist> pl = r->playlist();
5673
5674         list<boost::shared_ptr<Region> > new_regions;
5675
5676         if (!pl) {
5677                 return;
5678         }
5679
5680         if (positions.empty()) {
5681                 return;
5682         }
5683
5684
5685         if (positions.size() > 20 && can_ferret) {
5686                 std::string msgstr = string_compose (_("You are about to split\n%1\ninto %2 pieces.\nThis could take a long time."), r->name(), positions.size() + 1);
5687                 MessageDialog msg (msgstr,
5688                                    false,
5689                                    Gtk::MESSAGE_INFO,
5690                                    Gtk::BUTTONS_OK_CANCEL);
5691
5692                 if (can_ferret) {
5693                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5694                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5695                 } else {
5696                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5697                 }
5698
5699                 msg.set_title (_("Excessive split?"));
5700                 msg.present ();
5701
5702                 int response = msg.run();
5703                 msg.hide ();
5704
5705                 switch (response) {
5706                 case RESPONSE_OK:
5707                         break;
5708                 case RESPONSE_APPLY:
5709                         use_rhythmic_rodent = true;
5710                         break;
5711                 default:
5712                         return;
5713                 }
5714         }
5715
5716         if (use_rhythmic_rodent) {
5717                 show_rhythm_ferret ();
5718                 return;
5719         }
5720
5721         AnalysisFeatureList::const_iterator x;
5722
5723         pl->clear_changes ();
5724
5725         x = positions.begin();
5726
5727         if (x == positions.end()) {
5728                 return;
5729         }
5730
5731         pl->freeze ();
5732         pl->remove_region (r);
5733
5734         framepos_t pos = 0;
5735
5736         while (x != positions.end()) {
5737
5738                 /* deal with positons that are out of scope of present region bounds */
5739                 if (*x <= 0 || *x > r->length()) {
5740                         ++x;
5741                         continue;
5742                 }
5743
5744                 /* file start = original start + how far we from the initial position ?
5745                  */
5746
5747                 framepos_t file_start = r->start() + pos;
5748
5749                 /* length = next position - current position
5750                  */
5751
5752                 framepos_t len = (*x) - pos;
5753
5754                 /* XXX we do we really want to allow even single-sample regions?
5755                    shouldn't we have some kind of lower limit on region size?
5756                 */
5757
5758                 if (len <= 0) {
5759                         break;
5760                 }
5761
5762                 string new_name;
5763
5764                 if (RegionFactory::region_name (new_name, r->name())) {
5765                         break;
5766                 }
5767
5768                 /* do NOT announce new regions 1 by one, just wait till they are all done */
5769
5770                 PropertyList plist;
5771
5772                 plist.add (ARDOUR::Properties::start, file_start);
5773                 plist.add (ARDOUR::Properties::length, len);
5774                 plist.add (ARDOUR::Properties::name, new_name);
5775                 plist.add (ARDOUR::Properties::layer, 0);
5776
5777                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), plist, false);
5778
5779                 pl->add_region (nr, r->position() + pos);
5780
5781                 if (select_new) {
5782                         new_regions.push_front(nr);
5783                 }
5784
5785                 pos += len;
5786                 ++x;
5787         }
5788
5789         string new_name;
5790
5791         RegionFactory::region_name (new_name, r->name());
5792
5793         /* Add the final region */
5794         PropertyList plist;
5795
5796         plist.add (ARDOUR::Properties::start, r->start() + pos);
5797         plist.add (ARDOUR::Properties::length, r->last_frame() - (r->position() + pos) + 1);
5798         plist.add (ARDOUR::Properties::name, new_name);
5799         plist.add (ARDOUR::Properties::layer, 0);
5800
5801         boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), plist, false);
5802         pl->add_region (nr, r->position() + pos);
5803
5804         if (select_new) {
5805                 new_regions.push_front(nr);
5806         }
5807
5808         pl->thaw ();
5809
5810         _session->add_command (new StatefulDiffCommand (pl));
5811
5812         if (select_new) {
5813
5814                 for (list<boost::shared_ptr<Region> >::iterator i = new_regions.begin(); i != new_regions.end(); ++i){
5815                         set_selected_regionview_from_region_list ((*i), Selection::Add);
5816                 }
5817         }
5818 }
5819
5820 void
5821 Editor::place_transient()
5822 {
5823         if (!_session) {
5824                 return;
5825         }
5826
5827         RegionSelection rs = get_regions_from_selection_and_edit_point ();
5828
5829         if (rs.empty()) {
5830                 return;
5831         }
5832
5833         framepos_t where = get_preferred_edit_position();
5834
5835         _session->begin_reversible_command (_("place transient"));
5836
5837         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
5838                 framepos_t position = (*r)->region()->position();
5839                 (*r)->region()->add_transient(where - position);
5840         }
5841
5842         _session->commit_reversible_command ();
5843 }
5844
5845 void
5846 Editor::remove_transient(ArdourCanvas::Item* item)
5847 {
5848         if (!_session) {
5849                 return;
5850         }
5851
5852         ArdourCanvas::Line* _line = reinterpret_cast<ArdourCanvas::Line*> (item);
5853         assert (_line);
5854
5855         AudioRegionView* _arv = reinterpret_cast<AudioRegionView*> (item->get_data ("regionview"));
5856         _arv->remove_transient (*(float*) _line->get_data ("position"));
5857 }
5858
5859 void
5860 Editor::snap_regions_to_grid ()
5861 {
5862         list <boost::shared_ptr<Playlist > > used_playlists;
5863
5864         RegionSelection rs = get_regions_from_selection_and_entered ();
5865
5866         if (!_session || rs.empty()) {
5867                 return;
5868         }
5869
5870         _session->begin_reversible_command (_("snap regions to grid"));
5871
5872         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
5873
5874                 boost::shared_ptr<Playlist> pl = (*r)->region()->playlist();
5875
5876                 if (!pl->frozen()) {
5877                         /* we haven't seen this playlist before */
5878
5879                         /* remember used playlists so we can thaw them later */
5880                         used_playlists.push_back(pl);
5881                         pl->freeze();
5882                 }
5883
5884                 framepos_t start_frame = (*r)->region()->first_frame ();
5885                 snap_to (start_frame);
5886                 (*r)->region()->set_position (start_frame);
5887         }
5888
5889         while (used_playlists.size() > 0) {
5890                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
5891                 (*i)->thaw();
5892                 used_playlists.pop_front();
5893         }
5894
5895         _session->commit_reversible_command ();
5896 }
5897
5898 void
5899 Editor::close_region_gaps ()
5900 {
5901         list <boost::shared_ptr<Playlist > > used_playlists;
5902
5903         RegionSelection rs = get_regions_from_selection_and_entered ();
5904
5905         if (!_session || rs.empty()) {
5906                 return;
5907         }
5908
5909         Dialog dialog (_("Close Region Gaps"));
5910
5911         Table table (2, 3);
5912         table.set_spacings (12);
5913         table.set_border_width (12);
5914         Label* l = manage (new Label (_("Crossfade length")));
5915         l->set_alignment (0, 0.5);
5916         table.attach (*l, 0, 1, 0, 1);
5917
5918         SpinButton spin_crossfade (1, 0);
5919         spin_crossfade.set_range (0, 15);
5920         spin_crossfade.set_increments (1, 1);
5921         spin_crossfade.set_value (5);
5922         table.attach (spin_crossfade, 1, 2, 0, 1);
5923
5924         table.attach (*manage (new Label (_("ms"))), 2, 3, 0, 1);
5925
5926         l = manage (new Label (_("Pull-back length")));
5927         l->set_alignment (0, 0.5);
5928         table.attach (*l, 0, 1, 1, 2);
5929
5930         SpinButton spin_pullback (1, 0);
5931         spin_pullback.set_range (0, 100);
5932         spin_pullback.set_increments (1, 1);
5933         spin_pullback.set_value(30);
5934         table.attach (spin_pullback, 1, 2, 1, 2);
5935
5936         table.attach (*manage (new Label (_("ms"))), 2, 3, 1, 2);
5937
5938         dialog.get_vbox()->pack_start (table);
5939         dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
5940         dialog.add_button (_("Ok"), RESPONSE_ACCEPT);
5941         dialog.show_all ();
5942
5943         if (dialog.run () == RESPONSE_CANCEL) {
5944                 return;
5945         }
5946
5947         framepos_t crossfade_len = spin_crossfade.get_value();
5948         framepos_t pull_back_frames = spin_pullback.get_value();
5949
5950         crossfade_len = lrintf (crossfade_len * _session->frame_rate()/1000);
5951         pull_back_frames = lrintf (pull_back_frames * _session->frame_rate()/1000);
5952
5953         /* Iterate over the region list and make adjacent regions overlap by crossfade_len_ms */
5954
5955         _session->begin_reversible_command (_("close region gaps"));
5956
5957         int idx = 0;
5958         boost::shared_ptr<Region> last_region;
5959
5960         rs.sort_by_position_and_track();
5961
5962         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
5963
5964                 boost::shared_ptr<Playlist> pl = (*r)->region()->playlist();
5965
5966                 if (!pl->frozen()) {
5967                         /* we haven't seen this playlist before */
5968
5969                         /* remember used playlists so we can thaw them later */
5970                         used_playlists.push_back(pl);
5971                         pl->freeze();
5972                 }
5973
5974                 framepos_t position = (*r)->region()->position();
5975
5976                 if (idx == 0 || position < last_region->position()){
5977                         last_region = (*r)->region();
5978                         idx++;
5979                         continue;
5980                 }
5981
5982                 (*r)->region()->trim_front( (position - pull_back_frames));
5983                 last_region->trim_end( (position - pull_back_frames + crossfade_len));
5984
5985                 last_region = (*r)->region();
5986
5987                 idx++;
5988         }
5989
5990         while (used_playlists.size() > 0) {
5991                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
5992                 (*i)->thaw();
5993                 used_playlists.pop_front();
5994         }
5995
5996         _session->commit_reversible_command ();
5997 }
5998
5999 void
6000 Editor::tab_to_transient (bool forward)
6001 {
6002         AnalysisFeatureList positions;
6003
6004         RegionSelection rs = get_regions_from_selection_and_entered ();
6005
6006         if (!_session) {
6007                 return;
6008         }
6009
6010         framepos_t pos = _session->audible_frame ();
6011
6012         if (!selection->tracks.empty()) {
6013
6014                 /* don't waste time searching for transients in duplicate playlists.
6015                  */
6016
6017                 TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
6018
6019                 for (TrackViewList::iterator t = ts.begin(); t != ts.end(); ++t) {
6020
6021                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
6022
6023                         if (rtv) {
6024                                 boost::shared_ptr<Track> tr = rtv->track();
6025                                 if (tr) {
6026                                         boost::shared_ptr<Playlist> pl = tr->playlist ();
6027                                         if (pl) {
6028                                                 framepos_t result = pl->find_next_transient (pos, forward ? 1 : -1);
6029
6030                                                 if (result >= 0) {
6031                                                         positions.push_back (result);
6032                                                 }
6033                                         }
6034                                 }
6035                         }
6036                 }
6037
6038         } else {
6039
6040                 if (rs.empty()) {
6041                         return;
6042                 }
6043
6044                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6045                         (*r)->region()->get_transients (positions);
6046                 }
6047         }
6048
6049         TransientDetector::cleanup_transients (positions, _session->frame_rate(), 3.0);
6050
6051         if (forward) {
6052                 AnalysisFeatureList::iterator x;
6053
6054                 for (x = positions.begin(); x != positions.end(); ++x) {
6055                         if ((*x) > pos) {
6056                                 break;
6057                         }
6058                 }
6059
6060                 if (x != positions.end ()) {
6061                         _session->request_locate (*x);
6062                 }
6063
6064         } else {
6065                 AnalysisFeatureList::reverse_iterator x;
6066
6067                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
6068                         if ((*x) < pos) {
6069                                 break;
6070                         }
6071                 }
6072
6073                 if (x != positions.rend ()) {
6074                         _session->request_locate (*x);
6075                 }
6076         }
6077 }
6078
6079 void
6080 Editor::playhead_forward_to_grid ()
6081 {
6082         if (!_session) return;
6083         framepos_t pos = playhead_cursor->current_frame;
6084         if (pos < max_framepos - 1) {
6085                 pos += 2;
6086                 snap_to_internal (pos, 1, false);
6087                 _session->request_locate (pos);
6088         }
6089 }
6090
6091
6092 void
6093 Editor::playhead_backward_to_grid ()
6094 {
6095         if (!_session) return;
6096         framepos_t pos = playhead_cursor->current_frame;
6097         if (pos > 2) {
6098                 pos -= 2;
6099                 snap_to_internal (pos, -1, false);
6100                 _session->request_locate (pos);
6101         }
6102 }
6103
6104 void
6105 Editor::set_track_height (Height h)
6106 {
6107         TrackSelection& ts (selection->tracks);
6108
6109         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6110                 (*x)->set_height_enum (h);
6111         }
6112 }
6113
6114 void
6115 Editor::toggle_tracks_active ()
6116 {
6117         TrackSelection& ts (selection->tracks);
6118         bool first = true;
6119         bool target = false;
6120
6121         if (ts.empty()) {
6122                 return;
6123         }
6124
6125         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6126                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
6127
6128                 if (rtv) {
6129                         if (first) {
6130                                 target = !rtv->_route->active();
6131                                 first = false;
6132                         }
6133                         rtv->_route->set_active (target, this);
6134                 }
6135         }
6136 }
6137
6138 void
6139 Editor::remove_tracks ()
6140 {
6141         TrackSelection& ts (selection->tracks);
6142
6143         if (ts.empty()) {
6144                 return;
6145         }
6146
6147         vector<string> choices;
6148         string prompt;
6149         int ntracks = 0;
6150         int nbusses = 0;
6151         const char* trackstr;
6152         const char* busstr;
6153         vector<boost::shared_ptr<Route> > routes;
6154         bool special_bus = false;
6155
6156         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6157                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
6158                 if (rtv) {
6159                         if (rtv->is_track()) {
6160                                 ntracks++;
6161                         } else {
6162                                 nbusses++;
6163                         }
6164                 }
6165                 routes.push_back (rtv->_route);
6166
6167                 if (rtv->route()->is_master() || rtv->route()->is_monitor()) {
6168                         special_bus = true;
6169                 }
6170         }
6171
6172         if (special_bus && !Config->get_allow_special_bus_removal()) {
6173                 MessageDialog msg (_("That would be bad news ...."),
6174                                    false,
6175                                    Gtk::MESSAGE_INFO,
6176                                    Gtk::BUTTONS_OK);
6177                 msg.set_secondary_text (string_compose (_(
6178                                                                 "Removing the master or monitor bus is such a bad idea\n\
6179 that %1 is not going to allow it.\n\
6180 \n\
6181 If you really want to do this sort of thing\n\
6182 edit your ardour.rc file to set the\n\
6183 \"allow-special-bus-removal\" option to be \"yes\""), PROGRAM_NAME));
6184
6185                 msg.present ();
6186                 msg.run ();
6187                 return;
6188         }
6189
6190         if (ntracks + nbusses == 0) {
6191                 return;
6192         }
6193
6194         if (ntracks > 1) {
6195                 trackstr = _("tracks");
6196         } else {
6197                 trackstr = _("track");
6198         }
6199
6200         if (nbusses > 1) {
6201                 busstr = _("busses");
6202         } else {
6203                 busstr = _("bus");
6204         }
6205
6206         if (ntracks) {
6207                 if (nbusses) {
6208                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
6209                                                     "(You may also lose the playlists associated with the %2)\n\n"
6210                                                     "This action cannot be undone, and the session file will be overwritten!"),
6211                                                   ntracks, trackstr, nbusses, busstr);
6212                 } else {
6213                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
6214                                                     "(You may also lose the playlists associated with the %2)\n\n"
6215                                                     "This action cannot be undone, and the session file will be overwritten!"),
6216                                                   ntracks, trackstr);
6217                 }
6218         } else if (nbusses) {
6219                 prompt  = string_compose (_("Do you really want to remove %1 %2?\n\n"
6220                                             "This action cannot be undon, and the session file will be overwritten"),
6221                                           nbusses, busstr);
6222         }
6223
6224         choices.push_back (_("No, do nothing."));
6225         if (ntracks + nbusses > 1) {
6226                 choices.push_back (_("Yes, remove them."));
6227         } else {
6228                 choices.push_back (_("Yes, remove it."));
6229         }
6230
6231         string title;
6232         if (ntracks) {
6233                 title = string_compose (_("Remove %1"), trackstr);
6234         } else {
6235                 title = string_compose (_("Remove %1"), busstr);
6236         }
6237
6238         Choice prompter (title, prompt, choices);
6239
6240         if (prompter.run () != 1) {
6241                 return;
6242         }
6243
6244         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
6245                 _session->remove_route (*x);
6246         }
6247 }
6248
6249 void
6250 Editor::do_insert_time ()
6251 {
6252         if (selection->tracks.empty()) {
6253                 return;
6254         }
6255
6256         InsertTimeDialog d (*this);
6257         int response = d.run ();
6258
6259         if (response != RESPONSE_OK) {
6260                 return;
6261         }
6262
6263         if (d.distance() == 0) {
6264                 return;
6265         }
6266
6267         InsertTimeOption opt = d.intersected_region_action ();
6268
6269         insert_time (
6270                 get_preferred_edit_position(),
6271                 d.distance(),
6272                 opt,
6273                 d.all_playlists(),
6274                 d.move_glued(),
6275                 d.move_markers(),
6276                 d.move_glued_markers(),
6277                 d.move_locked_markers(),
6278                 d.move_tempos()
6279                 );
6280 }
6281
6282 void
6283 Editor::insert_time (
6284         framepos_t pos, framecnt_t frames, InsertTimeOption opt,
6285         bool all_playlists, bool ignore_music_glue, bool markers_too, bool glued_markers_too, bool locked_markers_too, bool tempo_too
6286         )
6287 {
6288         bool commit = false;
6289
6290         if (Config->get_edit_mode() == Lock) {
6291                 return;
6292         }
6293
6294         begin_reversible_command (_("insert time"));
6295
6296         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
6297
6298         for (TrackViewList::iterator x = ts.begin(); x != ts.end(); ++x) {
6299
6300                 /* regions */
6301
6302                 /* don't operate on any playlist more than once, which could
6303                  * happen if "all playlists" is enabled, but there is more
6304                  * than 1 track using playlists "from" a given track.
6305                  */
6306
6307                 set<boost::shared_ptr<Playlist> > pl;
6308
6309                 if (all_playlists) {
6310                         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6311                         if (rtav) {
6312                                 vector<boost::shared_ptr<Playlist> > all = _session->playlists->playlists_for_track (rtav->track ());
6313                                 for (vector<boost::shared_ptr<Playlist> >::iterator p = all.begin(); p != all.end(); ++p) {
6314                                         pl.insert (*p);
6315                                 }
6316                         }
6317                 } else {
6318                         if ((*x)->playlist ()) {
6319                                 pl.insert ((*x)->playlist ());
6320                         }
6321                 }
6322
6323                 for (set<boost::shared_ptr<Playlist> >::iterator i = pl.begin(); i != pl.end(); ++i) {
6324
6325                         (*i)->clear_changes ();
6326                         (*i)->clear_owned_changes ();
6327
6328                         if (opt == SplitIntersected) {
6329                                 (*i)->split (pos);
6330                         }
6331
6332                         (*i)->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6333
6334                         vector<Command*> cmds;
6335                         (*i)->rdiff (cmds);
6336                         _session->add_commands (cmds);
6337
6338                         _session->add_command (new StatefulDiffCommand (*i));
6339                         commit = true;
6340                 }
6341
6342                 /* automation */
6343                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6344                 if (rtav) {
6345                         rtav->route ()->shift (pos, frames);
6346                         commit = true;
6347                 }
6348         }
6349
6350         /* markers */
6351         if (markers_too) {
6352                 bool moved = false;
6353                 XMLNode& before (_session->locations()->get_state());
6354                 Locations::LocationList copy (_session->locations()->list());
6355
6356                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6357
6358                         Locations::LocationList::const_iterator tmp;
6359
6360                         bool const was_locked = (*i)->locked ();
6361                         if (locked_markers_too) {
6362                                 (*i)->unlock ();
6363                         }
6364
6365                         if ((*i)->position_lock_style() == AudioTime || glued_markers_too) {
6366
6367                                 if ((*i)->start() >= pos) {
6368                                         (*i)->set_start ((*i)->start() + frames);
6369                                         if (!(*i)->is_mark()) {
6370                                                 (*i)->set_end ((*i)->end() + frames);
6371                                         }
6372                                         moved = true;
6373                                 }
6374
6375                         }
6376
6377                         if (was_locked) {
6378                                 (*i)->lock ();
6379                         }
6380                 }
6381
6382                 if (moved) {
6383                         XMLNode& after (_session->locations()->get_state());
6384                         _session->add_command (new MementoCommand<Locations>(*_session->locations(), &before, &after));
6385                 }
6386         }
6387
6388         if (tempo_too) {
6389                 _session->tempo_map().insert_time (pos, frames);
6390         }
6391
6392         if (commit) {
6393                 commit_reversible_command ();
6394         }
6395 }
6396
6397 void
6398 Editor::fit_selected_tracks ()
6399 {
6400         if (!selection->tracks.empty()) {
6401                 fit_tracks (selection->tracks);
6402         } else {
6403                 TrackViewList tvl;
6404
6405                 /* no selected tracks - use tracks with selected regions */
6406
6407                 if (!selection->regions.empty()) {
6408                         for (RegionSelection::iterator r = selection->regions.begin(); r != selection->regions.end(); ++r) {
6409                                 tvl.push_back (&(*r)->get_time_axis_view ());
6410                         }
6411
6412                         if (!tvl.empty()) {
6413                                 fit_tracks (tvl);
6414                         }
6415                 } else if (internal_editing()) {
6416                         /* no selected tracks, or regions, but in internal edit mode, so follow the mouse and use
6417                            the entered track
6418                         */
6419                         if (entered_track) {
6420                                 tvl.push_back (entered_track);
6421                                 fit_tracks (tvl);
6422                         }
6423                 }
6424         }
6425 }
6426
6427 void
6428 Editor::fit_tracks (TrackViewList & tracks)
6429 {
6430         if (tracks.empty()) {
6431                 return;
6432         }
6433
6434         uint32_t child_heights = 0;
6435         int visible_tracks = 0;
6436
6437         for (TrackSelection::iterator t = tracks.begin(); t != tracks.end(); ++t) {
6438
6439                 if (!(*t)->marked_for_display()) {
6440                         continue;
6441                 }
6442
6443                 child_heights += (*t)->effective_height() - (*t)->current_height();
6444                 ++visible_tracks;
6445         }
6446
6447         uint32_t h = (uint32_t) floor ((_canvas_height - child_heights - canvas_timebars_vsize) / visible_tracks);
6448         double first_y_pos = DBL_MAX;
6449
6450         if (h < TimeAxisView::preset_height (HeightSmall)) {
6451                 MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
6452                 /* too small to be displayed */
6453                 return;
6454         }
6455
6456         undo_visual_stack.push_back (current_visual_state());
6457
6458         /* build a list of all tracks, including children */
6459
6460         TrackViewList all;
6461         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
6462                 all.push_back (*i);
6463                 TimeAxisView::Children c = (*i)->get_child_list ();
6464                 for (TimeAxisView::Children::iterator j = c.begin(); j != c.end(); ++j) {
6465                         all.push_back (j->get());
6466                 }
6467         }
6468
6469         /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
6470
6471         bool prev_was_selected = false;
6472         bool is_selected = tracks.contains (all.front());
6473         bool next_is_selected;
6474
6475         for (TrackViewList::iterator t = all.begin(); t != all.end(); ++t) {
6476
6477                 TrackViewList::iterator next;
6478
6479                 next = t;
6480                 ++next;
6481
6482                 if (next != all.end()) {
6483                         next_is_selected = tracks.contains (*next);
6484                 } else {
6485                         next_is_selected = false;
6486                 }
6487
6488                 if ((*t)->marked_for_display ()) {
6489                         if (is_selected) {
6490                                 (*t)->set_height (h);
6491                                 first_y_pos = std::min ((*t)->y_position (), first_y_pos);
6492                         } else {
6493                                 if (prev_was_selected && next_is_selected) {
6494                                         hide_track_in_display (*t);
6495                                 }
6496                         }
6497                 }
6498
6499                 prev_was_selected = is_selected;
6500                 is_selected = next_is_selected;
6501         }
6502
6503         /*
6504            set the controls_layout height now, because waiting for its size
6505            request signal handler will cause the vertical adjustment setting to fail
6506         */
6507
6508         controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
6509         vertical_adjustment.set_value (first_y_pos);
6510
6511         redo_visual_stack.push_back (current_visual_state());
6512 }
6513
6514 void
6515 Editor::save_visual_state (uint32_t n)
6516 {
6517         while (visual_states.size() <= n) {
6518                 visual_states.push_back (0);
6519         }
6520
6521         delete visual_states[n];
6522
6523         visual_states[n] = current_visual_state (true);
6524         gdk_beep ();
6525 }
6526
6527 void
6528 Editor::goto_visual_state (uint32_t n)
6529 {
6530         if (visual_states.size() <= n) {
6531                 return;
6532         }
6533
6534         if (visual_states[n] == 0) {
6535                 return;
6536         }
6537
6538         use_visual_state (*visual_states[n]);
6539 }
6540
6541 void
6542 Editor::start_visual_state_op (uint32_t n)
6543 {
6544         if (visual_state_op_connection.empty()) {
6545                 visual_state_op_connection = Glib::signal_timeout().connect (sigc::bind (sigc::mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
6546         }
6547 }
6548
6549 void
6550 Editor::cancel_visual_state_op (uint32_t n)
6551 {
6552         if (!visual_state_op_connection.empty()) {
6553                 visual_state_op_connection.disconnect();
6554                 goto_visual_state (n);
6555         }  else {
6556                 //we land here if called from the menu OR if end_visual_state_op has been called
6557                 //so check if we are already in visual state n
6558                 // XXX not yet checking it at all, but redoing does not hurt
6559                 goto_visual_state (n);
6560         }
6561 }
6562
6563 bool
6564 Editor::end_visual_state_op (uint32_t n)
6565 {
6566         visual_state_op_connection.disconnect();
6567         save_visual_state (n);
6568
6569         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6570         char buf[32];
6571         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6572         pup->set_text (buf);
6573         pup->touch();
6574
6575         return false; // do not call again
6576 }
6577
6578 void
6579 Editor::toggle_region_mute ()
6580 {
6581         if (_ignore_region_action) {
6582                 return;
6583         }
6584
6585         RegionSelection rs = get_regions_from_selection_and_entered ();
6586
6587         if (rs.empty ()) {
6588                 return;
6589         }
6590
6591         if (rs.size() > 1) {
6592                 begin_reversible_command (_("mute regions"));
6593         } else {
6594                 begin_reversible_command (_("mute region"));
6595         }
6596
6597         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
6598
6599                 (*i)->region()->playlist()->clear_changes ();
6600                 (*i)->region()->set_muted (!(*i)->region()->muted ());
6601                 _session->add_command (new StatefulDiffCommand ((*i)->region()->playlist()));
6602
6603         }
6604
6605         commit_reversible_command ();
6606 }
6607
6608 void
6609 Editor::combine_regions ()
6610 {
6611         /* foreach track with selected regions, take all selected regions
6612            and join them into a new region containing the subregions (as a
6613            playlist)
6614         */
6615
6616         typedef set<RouteTimeAxisView*> RTVS;
6617         RTVS tracks;
6618
6619         if (selection->regions.empty()) {
6620                 return;
6621         }
6622
6623         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
6624                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&(*i)->get_time_axis_view());
6625
6626                 if (rtv) {
6627                         tracks.insert (rtv);
6628                 }
6629         }
6630
6631         begin_reversible_command (_("combine regions"));
6632
6633         vector<RegionView*> new_selection;
6634
6635         for (RTVS::iterator i = tracks.begin(); i != tracks.end(); ++i) {
6636                 RegionView* rv;
6637
6638                 if ((rv = (*i)->combine_regions ()) != 0) {
6639                         new_selection.push_back (rv);
6640                 }
6641         }
6642
6643         selection->clear_regions ();
6644         for (vector<RegionView*>::iterator i = new_selection.begin(); i != new_selection.end(); ++i) {
6645                 selection->add (*i);
6646         }
6647
6648         commit_reversible_command ();
6649 }
6650
6651 void
6652 Editor::uncombine_regions ()
6653 {
6654         typedef set<RouteTimeAxisView*> RTVS;
6655         RTVS tracks;
6656
6657         if (selection->regions.empty()) {
6658                 return;
6659         }
6660
6661         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
6662                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&(*i)->get_time_axis_view());
6663
6664                 if (rtv) {
6665                         tracks.insert (rtv);
6666                 }
6667         }
6668
6669         begin_reversible_command (_("uncombine regions"));
6670
6671         for (RTVS::iterator i = tracks.begin(); i != tracks.end(); ++i) {
6672                 (*i)->uncombine_regions ();
6673         }
6674
6675         commit_reversible_command ();
6676 }
6677