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