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
  59 #include "ardour_ui.h"
  60 #include "editor.h"
  61 #include "time_axis_view.h"
  62 #include "route_time_axis.h"
  63 #include "audio_time_axis.h"
  64 #include "automation_time_axis.h"
  65 #include "streamview.h"
  66 #include "audio_streamview.h"
  67 #include "audio_region_view.h"
  68 #include "midi_region_view.h"
  69 #include "rgb_macros.h"
  70 #include "selection_templates.h"
  71 #include "selection.h"
  72 #include "editing.h"
  73 #include "gtk-custom-hruler.h"
  74 #include "gui_thread.h"
  75 #include "keyboard.h"
  76 #include "utils.h"
  77 #include "editor_drag.h"
  78 #include "strip_silence_dialog.h"
  79 #include "editor_routes.h"
  80 #include "editor_regions.h"
  81 #include "quantize_dialog.h"
  82 #include "interthread_progress_window.h"
  83
  84 #include "i18n.h"
  85
  86 using namespace std;
  87 using namespace ARDOUR;
  88 using namespace PBD;
  89 using namespace Gtk;
  90 using namespace Gtkmm2ext;
  91 using namespace Editing;
  92 using Gtkmm2ext::Keyboard;
  93
  94 /***********************************************************************
  95   Editor operations
  96  ***********************************************************************/
  97
  98 void
  99 Editor::undo (uint32_t n)
 100 {
 101         if (_session) {
 102                 _session->undo (n);
 103         }
 104 }
 105
 106 void
 107 Editor::redo (uint32_t n)
 108 {
 109         if (_session) {
 110                 _session->redo (n);
 111         }
 112 }
 113
 114 void
 115 Editor::split_regions_at (nframes64_t where, RegionSelection& regions)
 116 {
 117         list <boost::shared_ptr<Playlist > > used_playlists;
 118
 119         if (regions.empty()) {
 120                 return;
 121         }
 122
 123         begin_reversible_command (_("split"));
 124
 125         // if splitting a single region, and snap-to is using
 126         // region boundaries, don't pay attention to them
 127
 128         if (regions.size() == 1) {
 129                 switch (_snap_type) {
 130                 case SnapToRegionStart:
 131                 case SnapToRegionSync:
 132                 case SnapToRegionEnd:
 133                         break;
 134                 default:
 135                         snap_to (where);
 136                 }
 137         } else {
 138                 snap_to (where);
 139         }
 140
 141         for (RegionSelection::iterator a = regions.begin(); a != regions.end(); ) {
 142
 143                 RegionSelection::iterator tmp;
 144
 145                 /* XXX this test needs to be more complicated, to make sure we really
 146                    have something to split.
 147                 */
 148
 149                 if (!(*a)->region()->covers (where)) {
 150                         ++a;
 151                         continue;
 152                 }
 153
 154                 tmp = a;
 155                 ++tmp;
 156
 157                 boost::shared_ptr<Playlist> pl = (*a)->region()->playlist();
 158
 159                 if (!pl) {
 160                         cerr << "region " << (*a)->region()->name() << " has no playlist!\n";
 161                         a = tmp;
 162                         continue;
 163                 }
 164
 165                 if (!pl->frozen()) {
 166                         /* we haven't seen this playlist before */
 167
 168                         /* remember used playlists so we can thaw them later */
 169                         used_playlists.push_back(pl);
 170                         pl->freeze();
 171                 }
 172
 173                 if (pl) {
 174                         pl->clear_history ();
 175                         pl->split_region ((*a)->region(), where);
 176                         _session->add_command (new StatefulDiffCommand (pl));
 177                 }
 178
 179                 a = tmp;
 180         }
 181
 182         while (used_playlists.size() > 0) {
 183                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
 184                 (*i)->thaw();
 185                 used_playlists.pop_front();
 186         }
 187
 188         commit_reversible_command ();
 189 }
 190
 191 boost::shared_ptr<Region>
 192 Editor::select_region_for_operation (int /*dir*/, TimeAxisView **tv)
 193 {
 194         RegionView* rv;
 195         boost::shared_ptr<Region> region;
 196         nframes64_t start = 0;
 197
 198         if (selection->time.start () == selection->time.end_frame ()) {
 199
 200                 /* no current selection-> is there a selected regionview? */
 201
 202                 if (selection->regions.empty()) {
 203                         return region;
 204                 }
 205
 206         }
 207
 208         if (!selection->regions.empty()) {
 209
 210                 rv = *(selection->regions.begin());
 211                 (*tv) = &rv->get_time_axis_view();
 212                 region = rv->region();
 213
 214         } else if (!selection->tracks.empty()) {
 215
 216                 (*tv) = selection->tracks.front();
 217
 218                 RouteTimeAxisView* rtv;
 219
 220                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*tv)) != 0) {
 221                         boost::shared_ptr<Playlist> pl;
 222
 223                         if ((pl = rtv->playlist()) == 0) {
 224                                 return region;
 225                         }
 226
 227                         region = pl->top_region_at (start);
 228                 }
 229         }
 230
 231         return region;
 232 }
 233
 234 void
 235 Editor::extend_selection_to_end_of_region (bool next)
 236 {
 237         TimeAxisView *tv;
 238         boost::shared_ptr<Region> region;
 239         nframes64_t start;
 240
 241         if ((region = select_region_for_operation (next ? 1 : 0, &tv)) == 0) {
 242                 return;
 243         }
 244
 245         if (region && selection->time.start () == selection->time.end_frame ()) {
 246                 start = region->position();
 247         } else {
 248                 start = selection->time.start ();
 249         }
 250
 251         begin_reversible_command (_("extend selection"));
 252         selection->set (start, region->position() + region->length());
 253         commit_reversible_command ();
 254 }
 255
 256 void
 257 Editor::extend_selection_to_start_of_region (bool previous)
 258 {
 259         TimeAxisView *tv;
 260         boost::shared_ptr<Region> region;
 261         nframes64_t end;
 262
 263         if ((region = select_region_for_operation (previous ? -1 : 0, &tv)) == 0) {
 264                 return;
 265         }
 266
 267         if (region && selection->time.start () == selection->time.end_frame ()) {
 268                 end = region->position() + region->length();
 269         } else {
 270                 end = selection->time.end_frame ();
 271         }
 272
 273         /* Try to leave the selection with the same route if possible */
 274
 275         begin_reversible_command (_("extend selection"));
 276         selection->set (region->position(), end);
 277         commit_reversible_command ();
 278 }
 279
 280 bool
 281 Editor::nudge_forward_release (GdkEventButton* ev)
 282 {
 283         if (ev->state & Keyboard::PrimaryModifier) {
 284                 nudge_forward (false, true);
 285         } else {
 286                 nudge_forward (false, false);
 287         }
 288         return false;
 289 }
 290
 291 bool
 292 Editor::nudge_backward_release (GdkEventButton* ev)
 293 {
 294         if (ev->state & Keyboard::PrimaryModifier) {
 295                 nudge_backward (false, true);
 296         } else {
 297                 nudge_backward (false, false);
 298         }
 299         return false;
 300 }
 301
 302
 303 void
 304 Editor::nudge_forward (bool next, bool force_playhead)
 305 {
 306         nframes64_t distance;
 307         nframes64_t next_distance;
 308         RegionSelection rs;
 309
 310         get_regions_for_action (rs);
 311
 312         if (!_session) return;
 313
 314         if (!force_playhead && !rs.empty()) {
 315
 316                 begin_reversible_command (_("nudge regions forward"));
 317
 318                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 319                         boost::shared_ptr<Region> r ((*i)->region());
 320
 321                         distance = get_nudge_distance (r->position(), next_distance);
 322
 323                         if (next) {
 324                                 distance = next_distance;
 325                         }
 326
 327                         r->clear_history ();
 328                         r->set_position (r->position() + distance, this);
 329                         _session->add_command (new StatefulDiffCommand (r));
 330                 }
 331
 332                 commit_reversible_command ();
 333
 334
 335         } else if (!force_playhead && !selection->markers.empty()) {
 336
 337                 bool is_start;
 338
 339                 begin_reversible_command (_("nudge location forward"));
 340
 341                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 342
 343                         Location* loc = find_location_from_marker ((*i), is_start);
 344
 345                         if (loc) {
 346
 347                                 XMLNode& before (loc->get_state());
 348
 349                                 if (is_start) {
 350                                         distance = get_nudge_distance (loc->start(), next_distance);
 351                                         if (next) {
 352                                                 distance = next_distance;
 353                                         }
 354                                         if (max_frames - distance > loc->start() + loc->length()) {
 355                                                 loc->set_start (loc->start() + distance);
 356                                         } else {
 357                                                 loc->set_start (max_frames - loc->length());
 358                                         }
 359                                 } else {
 360                                         distance = get_nudge_distance (loc->end(), next_distance);
 361                                         if (next) {
 362                                                 distance = next_distance;
 363                                         }
 364                                         if (max_frames - distance > loc->end()) {
 365                                                 loc->set_end (loc->end() + distance);
 366                                         } else {
 367                                                 loc->set_end (max_frames);
 368                                         }
 369                                 }
 370                                 XMLNode& after (loc->get_state());
 371                                 _session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 372                         }
 373                 }
 374
 375                 commit_reversible_command ();
 376
 377         } else {
 378                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 379                 _session->request_locate (playhead_cursor->current_frame + distance);
 380         }
 381 }
 382
 383 void
 384 Editor::nudge_backward (bool next, bool force_playhead)
 385 {
 386         nframes64_t distance;
 387         nframes64_t next_distance;
 388         RegionSelection rs;
 389
 390         get_regions_for_action (rs);
 391
 392         if (!_session) return;
 393
 394         if (!force_playhead && !rs.empty()) {
 395
 396                 begin_reversible_command (_("nudge regions backward"));
 397
 398                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 399                         boost::shared_ptr<Region> r ((*i)->region());
 400
 401                         distance = get_nudge_distance (r->position(), next_distance);
 402
 403                         if (next) {
 404                                 distance = next_distance;
 405                         }
 406
 407                         r->clear_history ();
 408
 409                         if (r->position() > distance) {
 410                                 r->set_position (r->position() - distance, this);
 411                         } else {
 412                                 r->set_position (0, this);
 413                         }
 414                         _session->add_command (new StatefulDiffCommand (r));
 415                 }
 416
 417                 commit_reversible_command ();
 418
 419         } else if (!force_playhead && !selection->markers.empty()) {
 420
 421                 bool is_start;
 422
 423                 begin_reversible_command (_("nudge location forward"));
 424
 425                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 426
 427                         Location* loc = find_location_from_marker ((*i), is_start);
 428
 429                         if (loc) {
 430
 431                                 XMLNode& before (loc->get_state());
 432
 433                                 if (is_start) {
 434                                         distance = get_nudge_distance (loc->start(), next_distance);
 435                                         if (next) {
 436                                                 distance = next_distance;
 437                                         }
 438                                         if (distance < loc->start()) {
 439                                                 loc->set_start (loc->start() - distance);
 440                                         } else {
 441                                                 loc->set_start (0);
 442                                         }
 443                                 } else {
 444                                         distance = get_nudge_distance (loc->end(), next_distance);
 445
 446                                         if (next) {
 447                                                 distance = next_distance;
 448                                         }
 449
 450                                         if (distance < loc->end() - loc->length()) {
 451                                                 loc->set_end (loc->end() - distance);
 452                                         } else {
 453                                                 loc->set_end (loc->length());
 454                                         }
 455                                 }
 456
 457                                 XMLNode& after (loc->get_state());
 458                                 _session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 459                         }
 460                 }
 461
 462                 commit_reversible_command ();
 463
 464         } else {
 465
 466                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 467
 468                 if (playhead_cursor->current_frame > distance) {
 469                         _session->request_locate (playhead_cursor->current_frame - distance);
 470                 } else {
 471                         _session->goto_start();
 472                 }
 473         }
 474 }
 475
 476 void
 477 Editor::nudge_forward_capture_offset ()
 478 {
 479         nframes64_t distance;
 480         RegionSelection rs;
 481
 482         get_regions_for_action (rs);
 483
 484         if (!_session) return;
 485
 486         if (!rs.empty()) {
 487
 488                 begin_reversible_command (_("nudge forward"));
 489
 490                 distance = _session->worst_output_latency();
 491
 492                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 493                         boost::shared_ptr<Region> r ((*i)->region());
 494
 495                         r->clear_history ();
 496                         r->set_position (r->position() + distance, this);
 497                         _session->add_command(new StatefulDiffCommand (r));
 498                 }
 499
 500                 commit_reversible_command ();
 501
 502         }
 503 }
 504
 505 void
 506 Editor::nudge_backward_capture_offset ()
 507 {
 508         nframes64_t distance;
 509         RegionSelection rs;
 510
 511         get_regions_for_action (rs);
 512
 513         if (!_session) return;
 514
 515         if (!rs.empty()) {
 516
 517                 begin_reversible_command (_("nudge forward"));
 518
 519                 distance = _session->worst_output_latency();
 520
 521                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 522                         boost::shared_ptr<Region> r ((*i)->region());
 523
 524                         r->clear_history ();
 525
 526                         if (r->position() > distance) {
 527                                 r->set_position (r->position() - distance, this);
 528                         } else {
 529                                 r->set_position (0, this);
 530                         }
 531                         _session->add_command(new StatefulDiffCommand (r));
 532                 }
 533
 534                 commit_reversible_command ();
 535         }
 536 }
 537
 538 /* DISPLAY MOTION */
 539
 540 void
 541 Editor::move_to_start ()
 542 {
 543         _session->goto_start ();
 544 }
 545
 546 void
 547 Editor::move_to_end ()
 548 {
 549
 550         _session->request_locate (_session->current_end_frame());
 551 }
 552
 553 void
 554 Editor::build_region_boundary_cache ()
 555 {
 556         nframes64_t pos = 0;
 557         vector<RegionPoint> interesting_points;
 558         boost::shared_ptr<Region> r;
 559         TrackViewList tracks;
 560         bool at_end = false;
 561
 562         region_boundary_cache.clear ();
 563
 564         if (_session == 0) {
 565                 return;
 566         }
 567
 568         switch (_snap_type) {
 569         case SnapToRegionStart:
 570                 interesting_points.push_back (Start);
 571                 break;
 572         case SnapToRegionEnd:
 573                 interesting_points.push_back (End);
 574                 break;
 575         case SnapToRegionSync:
 576                 interesting_points.push_back (SyncPoint);
 577                 break;
 578         case SnapToRegionBoundary:
 579                 interesting_points.push_back (Start);
 580                 interesting_points.push_back (End);
 581                 break;
 582         default:
 583                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), _snap_type) << endmsg;
 584                 /*NOTREACHED*/
 585                 return;
 586         }
 587
 588         TimeAxisView *ontrack = 0;
 589         TrackViewList tlist;
 590
 591         if (!selection->tracks.empty()) {
 592                 tlist = selection->tracks;
 593         } else {
 594                 tlist = track_views;
 595         }
 596
 597         while (pos < _session->current_end_frame() && !at_end) {
 598
 599                 nframes64_t rpos;
 600                 nframes64_t lpos = max_frames;
 601
 602                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 603
 604                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 605                                 if (*p == interesting_points.back()) {
 606                                         at_end = true;
 607                                 }
 608                                 /* move to next point type */
 609                                 continue;
 610                         }
 611
 612                         switch (*p) {
 613                         case Start:
 614                                 rpos = r->first_frame();
 615                                 break;
 616
 617                         case End:
 618                                 rpos = r->last_frame();
 619                                 break;
 620
 621                         case SyncPoint:
 622                                 rpos = r->sync_position ();
 623                                 //r->adjust_to_sync (r->first_frame());
 624                                 break;
 625
 626                         default:
 627                                 break;
 628                         }
 629
 630                         float speed = 1.0f;
 631                         RouteTimeAxisView *rtav;
 632
 633                         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 634                                 if (rtav->track() != 0) {
 635                                         speed = rtav->track()->speed();
 636                                 }
 637                         }
 638
 639                         rpos = track_frame_to_session_frame (rpos, speed);
 640
 641                         if (rpos < lpos) {
 642                                 lpos = rpos;
 643                         }
 644
 645                         /* prevent duplicates, but we don't use set<> because we want to be able
 646                            to sort later.
 647                         */
 648
 649                         vector<nframes64_t>::iterator ri;
 650
 651                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 652                                 if (*ri == rpos) {
 653                                         break;
 654                                 }
 655                         }
 656
 657                         if (ri == region_boundary_cache.end()) {
 658                                 region_boundary_cache.push_back (rpos);
 659                         }
 660                 }
 661
 662                 pos = lpos + 1;
 663         }
 664
 665         /* finally sort to be sure that the order is correct */
 666
 667         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 668 }
 669
 670 boost::shared_ptr<Region>
 671 Editor::find_next_region (nframes64_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 672 {
 673         TrackViewList::iterator i;
 674         nframes64_t closest = max_frames;
 675         boost::shared_ptr<Region> ret;
 676         nframes64_t rpos = 0;
 677
 678         float track_speed;
 679         nframes64_t track_frame;
 680         RouteTimeAxisView *rtav;
 681
 682         for (i = tracks.begin(); i != tracks.end(); ++i) {
 683
 684                 nframes64_t distance;
 685                 boost::shared_ptr<Region> r;
 686
 687                 track_speed = 1.0f;
 688                 if ( (rtav = dynamic_cast<RouteTimeAxisView*>(*i)) != 0 ) {
 689                         if (rtav->track()!=0)
 690                                 track_speed = rtav->track()->speed();
 691                 }
 692
 693                 track_frame = session_frame_to_track_frame(frame, track_speed);
 694
 695                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 696                         continue;
 697                 }
 698
 699                 switch (point) {
 700                 case Start:
 701                         rpos = r->first_frame ();
 702                         break;
 703
 704                 case End:
 705                         rpos = r->last_frame ();
 706                         break;
 707
 708                 case SyncPoint:
 709                         rpos = r->sync_position ();
 710                         // r->adjust_to_sync (r->first_frame());
 711                         break;
 712                 }
 713
 714                 // rpos is a "track frame", converting it to "_session frame"
 715                 rpos = track_frame_to_session_frame(rpos, track_speed);
 716
 717                 if (rpos > frame) {
 718                         distance = rpos - frame;
 719                 } else {
 720                         distance = frame - rpos;
 721                 }
 722
 723                 if (distance < closest) {
 724                         closest = distance;
 725                         if (ontrack != 0)
 726                                 *ontrack = (*i);
 727                         ret = r;
 728                 }
 729         }
 730
 731         return ret;
 732 }
 733
 734 nframes64_t
 735 Editor::find_next_region_boundary (nframes64_t pos, int32_t dir, const TrackViewList& tracks)
 736 {
 737         nframes64_t distance = max_frames;
 738         nframes64_t current_nearest = -1;
 739
 740
 741         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 742                 nframes64_t contender;
 743                 nframes64_t d;
 744
 745                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 746
 747                 if (!rtv) {
 748                         continue;
 749                 }
 750
 751                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 752                         continue;
 753                 }
 754
 755                 d = ::llabs (pos - contender);
 756
 757                 if (d < distance) {
 758                         current_nearest = contender;
 759                         distance = d;
 760                 }
 761         }
 762
 763         return current_nearest;
 764 }
 765
 766 nframes64_t
 767 Editor::get_region_boundary (nframes64_t pos, int32_t dir, bool with_selection, bool only_onscreen)
 768 {
 769         nframes64_t target;
 770         TrackViewList tvl;
 771
 772         if (with_selection && Config->get_region_boundaries_from_selected_tracks()) {
 773
 774                 if (!selection->tracks.empty()) {
 775
 776                         target = find_next_region_boundary (pos, dir, selection->tracks);
 777
 778                 } else {
 779
 780                         if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 781                                 get_onscreen_tracks (tvl);
 782                                 target = find_next_region_boundary (pos, dir, tvl);
 783                         } else {
 784                                 target = find_next_region_boundary (pos, dir, track_views);
 785                         }
 786                 }
 787
 788         } else {
 789
 790                 if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 791                         get_onscreen_tracks (tvl);
 792                         target = find_next_region_boundary (pos, dir, tvl);
 793                 } else {
 794                         target = find_next_region_boundary (pos, dir, track_views);
 795                 }
 796         }
 797
 798         return target;
 799 }
 800
 801 void
 802 Editor::cursor_to_region_boundary (bool with_selection, int32_t dir)
 803 {
 804         nframes64_t pos = playhead_cursor->current_frame;
 805         nframes64_t target;
 806
 807         if (!_session) {
 808                 return;
 809         }
 810
 811         // so we don't find the current region again..
 812         if (dir > 0 || pos > 0) {
 813                 pos += dir;
 814         }
 815
 816         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
 817                 return;
 818         }
 819
 820         _session->request_locate (target);
 821 }
 822
 823 void
 824 Editor::cursor_to_next_region_boundary (bool with_selection)
 825 {
 826         cursor_to_region_boundary (with_selection, 1);
 827 }
 828
 829 void
 830 Editor::cursor_to_previous_region_boundary (bool with_selection)
 831 {
 832         cursor_to_region_boundary (with_selection, -1);
 833 }
 834
 835 void
 836 Editor::cursor_to_region_point (EditorCursor* cursor, RegionPoint point, int32_t dir)
 837 {
 838         boost::shared_ptr<Region> r;
 839         nframes64_t pos = cursor->current_frame;
 840
 841         if (!_session) {
 842                 return;
 843         }
 844
 845         TimeAxisView *ontrack = 0;
 846
 847         // so we don't find the current region again..
 848         if (dir>0 || pos>0)
 849                 pos+=dir;
 850
 851         if (!selection->tracks.empty()) {
 852
 853                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 854
 855         } else if (clicked_axisview) {
 856
 857                 TrackViewList t;
 858                 t.push_back (clicked_axisview);
 859
 860                 r = find_next_region (pos, point, dir, t, &ontrack);
 861
 862         } else {
 863
 864                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 865         }
 866
 867         if (r == 0) {
 868                 return;
 869         }
 870
 871         switch (point){
 872         case Start:
 873                 pos = r->first_frame ();
 874                 break;
 875
 876         case End:
 877                 pos = r->last_frame ();
 878                 break;
 879
 880         case SyncPoint:
 881                 pos = r->sync_position ();
 882                 // r->adjust_to_sync (r->first_frame());
 883                 break;
 884         }
 885
 886         float speed = 1.0f;
 887         RouteTimeAxisView *rtav;
 888
 889         if ( ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 890                 if (rtav->track() != 0) {
 891                         speed = rtav->track()->speed();
 892                 }
 893         }
 894
 895         pos = track_frame_to_session_frame(pos, speed);
 896
 897         if (cursor == playhead_cursor) {
 898                 _session->request_locate (pos);
 899         } else {
 900                 cursor->set_position (pos);
 901         }
 902 }
 903
 904 void
 905 Editor::cursor_to_next_region_point (EditorCursor* cursor, RegionPoint point)
 906 {
 907         cursor_to_region_point (cursor, point, 1);
 908 }
 909
 910 void
 911 Editor::cursor_to_previous_region_point (EditorCursor* cursor, RegionPoint point)
 912 {
 913         cursor_to_region_point (cursor, point, -1);
 914 }
 915
 916 void
 917 Editor::cursor_to_selection_start (EditorCursor *cursor)
 918 {
 919         nframes64_t pos = 0;
 920         RegionSelection rs;
 921
 922         get_regions_for_action (rs);
 923
 924         switch (mouse_mode) {
 925         case MouseObject:
 926                 if (!rs.empty()) {
 927                         pos = rs.start();
 928                 }
 929                 break;
 930
 931         case MouseRange:
 932                 if (!selection->time.empty()) {
 933                         pos = selection->time.start ();
 934                 }
 935                 break;
 936
 937         default:
 938                 return;
 939         }
 940
 941         if (cursor == playhead_cursor) {
 942                 _session->request_locate (pos);
 943         } else {
 944                 cursor->set_position (pos);
 945         }
 946 }
 947
 948 void
 949 Editor::cursor_to_selection_end (EditorCursor *cursor)
 950 {
 951         nframes64_t pos = 0;
 952         RegionSelection rs;
 953
 954         get_regions_for_action (rs);
 955
 956         switch (mouse_mode) {
 957         case MouseObject:
 958                 if (!rs.empty()) {
 959                         pos = rs.end_frame();
 960                 }
 961                 break;
 962
 963         case MouseRange:
 964                 if (!selection->time.empty()) {
 965                         pos = selection->time.end_frame ();
 966                 }
 967                 break;
 968
 969         default:
 970                 return;
 971         }
 972
 973         if (cursor == playhead_cursor) {
 974                 _session->request_locate (pos);
 975         } else {
 976                 cursor->set_position (pos);
 977         }
 978 }
 979
 980 void
 981 Editor::selected_marker_to_region_boundary (bool with_selection, int32_t dir)
 982 {
 983         nframes64_t target;
 984         Location* loc;
 985         bool ignored;
 986
 987         if (!_session) {
 988                 return;
 989         }
 990
 991         if (selection->markers.empty()) {
 992                 nframes64_t mouse;
 993                 bool ignored;
 994
 995                 if (!mouse_frame (mouse, ignored)) {
 996                         return;
 997                 }
 998
 999                 add_location_mark (mouse);
1000         }
1001
1002         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1003                 return;
1004         }
1005
1006         nframes64_t pos = loc->start();
1007
1008         // so we don't find the current region again..
1009         if (dir > 0 || pos > 0) {
1010                 pos += dir;
1011         }
1012
1013         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
1014                 return;
1015         }
1016
1017         loc->move_to (target);
1018 }
1019
1020 void
1021 Editor::selected_marker_to_next_region_boundary (bool with_selection)
1022 {
1023         selected_marker_to_region_boundary (with_selection, 1);
1024 }
1025
1026 void
1027 Editor::selected_marker_to_previous_region_boundary (bool with_selection)
1028 {
1029         selected_marker_to_region_boundary (with_selection, -1);
1030 }
1031
1032 void
1033 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
1034 {
1035         boost::shared_ptr<Region> r;
1036         nframes64_t pos;
1037         Location* loc;
1038         bool ignored;
1039
1040         if (!_session || selection->markers.empty()) {
1041                 return;
1042         }
1043
1044         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1045                 return;
1046         }
1047
1048         TimeAxisView *ontrack = 0;
1049
1050         pos = loc->start();
1051
1052         // so we don't find the current region again..
1053         if (dir>0 || pos>0)
1054                 pos+=dir;
1055
1056         if (!selection->tracks.empty()) {
1057
1058                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1059
1060         } else {
1061
1062                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1063         }
1064
1065         if (r == 0) {
1066                 return;
1067         }
1068
1069         switch (point){
1070         case Start:
1071                 pos = r->first_frame ();
1072                 break;
1073
1074         case End:
1075                 pos = r->last_frame ();
1076                 break;
1077
1078         case SyncPoint:
1079                 pos = r->adjust_to_sync (r->first_frame());
1080                 break;
1081         }
1082
1083         float speed = 1.0f;
1084         RouteTimeAxisView *rtav;
1085
1086         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0) {
1087                 if (rtav->track() != 0) {
1088                         speed = rtav->track()->speed();
1089                 }
1090         }
1091
1092         pos = track_frame_to_session_frame(pos, speed);
1093
1094         loc->move_to (pos);
1095 }
1096
1097 void
1098 Editor::selected_marker_to_next_region_point (RegionPoint point)
1099 {
1100         selected_marker_to_region_point (point, 1);
1101 }
1102
1103 void
1104 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1105 {
1106         selected_marker_to_region_point (point, -1);
1107 }
1108
1109 void
1110 Editor::selected_marker_to_selection_start ()
1111 {
1112         nframes64_t pos = 0;
1113         Location* loc;
1114         bool ignored;
1115
1116         if (!_session || selection->markers.empty()) {
1117                 return;
1118         }
1119
1120         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1121                 return;
1122         }
1123
1124         RegionSelection rs;
1125
1126         get_regions_for_action (rs);
1127
1128         switch (mouse_mode) {
1129         case MouseObject:
1130                 if (!rs.empty()) {
1131                         pos = rs.start();
1132                 }
1133                 break;
1134
1135         case MouseRange:
1136                 if (!selection->time.empty()) {
1137                         pos = selection->time.start ();
1138                 }
1139                 break;
1140
1141         default:
1142                 return;
1143         }
1144
1145         loc->move_to (pos);
1146 }
1147
1148 void
1149 Editor::selected_marker_to_selection_end ()
1150 {
1151         nframes64_t pos = 0;
1152         Location* loc;
1153         bool ignored;
1154
1155         if (!_session || selection->markers.empty()) {
1156                 return;
1157         }
1158
1159         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1160                 return;
1161         }
1162
1163         RegionSelection rs;
1164
1165         get_regions_for_action (rs);
1166
1167         switch (mouse_mode) {
1168         case MouseObject:
1169                 if (!rs.empty()) {
1170                         pos = rs.end_frame();
1171                 }
1172                 break;
1173
1174         case MouseRange:
1175                 if (!selection->time.empty()) {
1176                         pos = selection->time.end_frame ();
1177                 }
1178                 break;
1179
1180         default:
1181                 return;
1182         }
1183
1184         loc->move_to (pos);
1185 }
1186
1187 void
1188 Editor::scroll_playhead (bool forward)
1189 {
1190         nframes64_t pos = playhead_cursor->current_frame;
1191         nframes64_t delta = (nframes64_t) floor (current_page_frames() / 0.8);
1192
1193         if (forward) {
1194                 if (pos == max_frames) {
1195                         return;
1196                 }
1197
1198                 if (pos < max_frames - delta) {
1199                         pos += delta ;
1200                 } else {
1201                         pos = max_frames;
1202                 }
1203
1204         } else {
1205
1206                 if (pos == 0) {
1207                         return;
1208                 }
1209
1210                 if (pos > delta) {
1211                         pos -= delta;
1212                 } else {
1213                         pos = 0;
1214                 }
1215         }
1216
1217         _session->request_locate (pos);
1218 }
1219
1220 void
1221 Editor::playhead_backward ()
1222 {
1223         nframes64_t pos;
1224         nframes64_t cnt;
1225         float prefix;
1226         bool was_floating;
1227
1228         if (get_prefix (prefix, was_floating)) {
1229                 cnt = 1;
1230         } else {
1231                 if (was_floating) {
1232                         cnt = (nframes64_t) floor (prefix * _session->frame_rate ());
1233                 } else {
1234                         cnt = (nframes64_t) prefix;
1235                 }
1236         }
1237
1238         pos = playhead_cursor->current_frame;
1239
1240         if ((nframes64_t) pos < cnt) {
1241                 pos = 0;
1242         } else {
1243                 pos -= cnt;
1244         }
1245
1246         /* XXX this is completely insane. with the current buffering
1247            design, we'll force a complete track buffer flush and
1248            reload, just to move 1 sample !!!
1249         */
1250
1251         _session->request_locate (pos);
1252 }
1253
1254 void
1255 Editor::playhead_forward ()
1256 {
1257         nframes64_t pos;
1258         nframes64_t cnt;
1259         bool was_floating;
1260         float prefix;
1261
1262         if (get_prefix (prefix, was_floating)) {
1263                 cnt = 1;
1264         } else {
1265                 if (was_floating) {
1266                         cnt = (nframes64_t) floor (prefix * _session->frame_rate ());
1267                 } else {
1268                         cnt = (nframes64_t) floor (prefix);
1269                 }
1270         }
1271
1272         pos = playhead_cursor->current_frame;
1273
1274         /* XXX this is completely insane. with the current buffering
1275            design, we'll force a complete track buffer flush and
1276            reload, just to move 1 sample !!!
1277         */
1278
1279         _session->request_locate (pos+cnt);
1280 }
1281
1282 void
1283 Editor::cursor_align (bool playhead_to_edit)
1284 {
1285         if (!_session) {
1286                 return;
1287         }
1288
1289         if (playhead_to_edit) {
1290
1291                 if (selection->markers.empty()) {
1292                         return;
1293                 }
1294
1295                 _session->request_locate (selection->markers.front()->position(), _session->transport_rolling());
1296
1297         } else {
1298                 /* move selected markers to playhead */
1299
1300                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1301                         bool ignored;
1302
1303                         Location* loc = find_location_from_marker (*i, ignored);
1304
1305                         if (loc->is_mark()) {
1306                                 loc->set_start (playhead_cursor->current_frame);
1307                         } else {
1308                                 loc->set (playhead_cursor->current_frame,
1309                                           playhead_cursor->current_frame + loc->length());
1310                         }
1311                 }
1312         }
1313 }
1314
1315 void
1316 Editor::edit_cursor_backward ()
1317 {
1318         nframes64_t pos;
1319         nframes64_t cnt;
1320         float prefix;
1321         bool was_floating;
1322
1323         if (get_prefix (prefix, was_floating)) {
1324                 cnt = 1;
1325         } else {
1326                 if (was_floating) {
1327                         cnt = (nframes64_t) floor (prefix * _session->frame_rate ());
1328                 } else {
1329                         cnt = (nframes64_t) prefix;
1330                 }
1331         }
1332
1333         if ((pos = get_preferred_edit_position()) < 0) {
1334                 return;
1335         }
1336
1337         if (pos < cnt) {
1338                 pos = 0;
1339         } else {
1340                 pos -= cnt;
1341         }
1342
1343         // EDIT CURSOR edit_cursor->set_position (pos);
1344 }
1345
1346 void
1347 Editor::edit_cursor_forward ()
1348 {
1349         //nframes64_t pos;
1350         nframes64_t cnt;
1351         bool was_floating;
1352         float prefix;
1353
1354         if (get_prefix (prefix, was_floating)) {
1355                 cnt = 1;
1356         } else {
1357                 if (was_floating) {
1358                         cnt = (nframes64_t) floor (prefix * _session->frame_rate ());
1359                 } else {
1360                         cnt = (nframes64_t) floor (prefix);
1361                 }
1362         }
1363
1364         // pos = edit_cursor->current_frame;
1365         // EDIT CURSOR edit_cursor->set_position (pos+cnt);
1366 }
1367
1368 void
1369 Editor::goto_frame ()
1370 {
1371         float prefix;
1372         bool was_floating;
1373         nframes64_t frame;
1374
1375         if (get_prefix (prefix, was_floating)) {
1376                 return;
1377         }
1378
1379         if (was_floating) {
1380                 frame = (nframes64_t) floor (prefix * _session->frame_rate());
1381         } else {
1382                 frame = (nframes64_t) floor (prefix);
1383         }
1384
1385         _session->request_locate (frame);
1386 }
1387
1388 void
1389 Editor::scroll_backward (float pages)
1390 {
1391         nframes64_t frame;
1392         nframes64_t one_page = (nframes64_t) rint (_canvas_width * frames_per_unit);
1393         bool was_floating;
1394         float prefix;
1395         nframes64_t cnt;
1396
1397         if (get_prefix (prefix, was_floating)) {
1398                 cnt = (nframes64_t) floor (pages * one_page);
1399         } else {
1400                 if (was_floating) {
1401                         cnt = (nframes64_t) floor (prefix * _session->frame_rate());
1402                 } else {
1403                         cnt = (nframes64_t) floor (prefix * one_page);
1404                 }
1405         }
1406
1407         if (leftmost_frame < cnt) {
1408                 frame = 0;
1409         } else {
1410                 frame = leftmost_frame - cnt;
1411         }
1412
1413         reset_x_origin (frame);
1414 }
1415
1416 void
1417 Editor::scroll_forward (float pages)
1418 {
1419         nframes64_t frame;
1420         nframes64_t one_page = (nframes64_t) rint (_canvas_width * frames_per_unit);
1421         bool was_floating;
1422         float prefix;
1423         nframes64_t cnt;
1424
1425         if (get_prefix (prefix, was_floating)) {
1426                 cnt = (nframes64_t) floor (pages * one_page);
1427         } else {
1428                 if (was_floating) {
1429                         cnt = (nframes64_t) floor (prefix * _session->frame_rate());
1430                 } else {
1431                         cnt = (nframes64_t) floor (prefix * one_page);
1432                 }
1433         }
1434
1435         if (max_frames - cnt < leftmost_frame) {
1436                 frame = max_frames - cnt;
1437         } else {
1438                 frame = leftmost_frame + cnt;
1439         }
1440
1441         reset_x_origin (frame);
1442 }
1443
1444 void
1445 Editor::scroll_tracks_down ()
1446 {
1447         float prefix;
1448         bool was_floating;
1449         int cnt;
1450
1451         if (get_prefix (prefix, was_floating)) {
1452                 cnt = 1;
1453         } else {
1454                 cnt = (int) floor (prefix);
1455         }
1456
1457         double vert_value = vertical_adjustment.get_value() + (cnt *
1458                 vertical_adjustment.get_page_size());
1459         if (vert_value > vertical_adjustment.get_upper() - _canvas_height) {
1460                 vert_value = vertical_adjustment.get_upper() - _canvas_height;
1461         }
1462         vertical_adjustment.set_value (vert_value);
1463 }
1464
1465 void
1466 Editor::scroll_tracks_up ()
1467 {
1468         float prefix;
1469         bool was_floating;
1470         int cnt;
1471
1472         if (get_prefix (prefix, was_floating)) {
1473                 cnt = 1;
1474         } else {
1475                 cnt = (int) floor (prefix);
1476         }
1477
1478         vertical_adjustment.set_value (vertical_adjustment.get_value() - (cnt * vertical_adjustment.get_page_size()));
1479 }
1480
1481 void
1482 Editor::scroll_tracks_down_line ()
1483 {
1484         double vert_value = vertical_adjustment.get_value() + 60;
1485
1486         if (vert_value > vertical_adjustment.get_upper() - _canvas_height) {
1487                 vert_value = vertical_adjustment.get_upper() - _canvas_height;
1488         }
1489
1490         vertical_adjustment.set_value (vert_value);
1491 }
1492
1493 void
1494 Editor::scroll_tracks_up_line ()
1495 {
1496         reset_y_origin (vertical_adjustment.get_value() - 60);
1497 }
1498
1499 /* ZOOM */
1500
1501 void
1502 Editor::tav_zoom_step (bool coarser)
1503 {
1504         ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_step, coarser)
1505
1506         _routes->suspend_redisplay ();
1507
1508         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1509                 TimeAxisView *tv = (static_cast<TimeAxisView*>(*i));
1510                         tv->step_height (coarser);
1511         }
1512
1513         _routes->resume_redisplay ();
1514 }
1515
1516 void
1517 Editor::temporal_zoom_step (bool coarser)
1518 {
1519         ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_step, coarser)
1520
1521         double nfpu;
1522
1523         nfpu = frames_per_unit;
1524
1525         if (coarser) {
1526                 nfpu *= 1.61803399;
1527         } else {
1528                 nfpu = max(1.0,(nfpu/1.61803399));
1529         }
1530
1531         temporal_zoom (nfpu);
1532 }
1533
1534 void
1535 Editor::temporal_zoom (gdouble fpu)
1536 {
1537         if (!_session) return;
1538
1539         nframes64_t current_page = current_page_frames();
1540         nframes64_t current_leftmost = leftmost_frame;
1541         nframes64_t current_rightmost;
1542         nframes64_t current_center;
1543         nframes64_t new_page_size;
1544         nframes64_t half_page_size;
1545         nframes64_t leftmost_after_zoom = 0;
1546         nframes64_t where;
1547         bool in_track_canvas;
1548         double nfpu;
1549         double l;
1550
1551         /* XXX this limit is also in ::set_frames_per_unit() */
1552
1553         if (frames_per_unit <= 1.0 && fpu <= frames_per_unit) {
1554                 return;
1555         }
1556
1557         nfpu = fpu;
1558
1559         new_page_size = (nframes64_t) floor (_canvas_width * nfpu);
1560         half_page_size = new_page_size / 2;
1561
1562         switch (zoom_focus) {
1563         case ZoomFocusLeft:
1564                 leftmost_after_zoom = current_leftmost;
1565                 break;
1566
1567         case ZoomFocusRight:
1568                 current_rightmost = leftmost_frame + current_page;
1569                 if (current_rightmost < new_page_size) {
1570                         leftmost_after_zoom = 0;
1571                 } else {
1572                         leftmost_after_zoom = current_rightmost - new_page_size;
1573                 }
1574                 break;
1575
1576         case ZoomFocusCenter:
1577                 current_center = current_leftmost + (current_page/2);
1578                 if (current_center < half_page_size) {
1579                         leftmost_after_zoom = 0;
1580                 } else {
1581                         leftmost_after_zoom = current_center - half_page_size;
1582                 }
1583                 break;
1584
1585         case ZoomFocusPlayhead:
1586                 /* centre playhead */
1587                 l = playhead_cursor->current_frame - (new_page_size * 0.5);
1588
1589                 if (l < 0) {
1590                         leftmost_after_zoom = 0;
1591                 } else if (l > max_frames) {
1592                         leftmost_after_zoom = max_frames - new_page_size;
1593                 } else {
1594                         leftmost_after_zoom = (nframes64_t) l;
1595                 }
1596                 break;
1597
1598         case ZoomFocusMouse:
1599                 /* try to keep the mouse over the same point in the display */
1600
1601                 if (!mouse_frame (where, in_track_canvas)) {
1602                         /* use playhead instead */
1603                         where = playhead_cursor->current_frame;
1604
1605                         if (where < half_page_size) {
1606                                 leftmost_after_zoom = 0;
1607                         } else {
1608                                 leftmost_after_zoom = where - half_page_size;
1609                         }
1610
1611                 } else {
1612
1613                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1614
1615                         if (l < 0) {
1616                                 leftmost_after_zoom = 0;
1617                         } else if (l > max_frames) {
1618                                 leftmost_after_zoom = max_frames - new_page_size;
1619                         } else {
1620                                 leftmost_after_zoom = (nframes64_t) l;
1621                         }
1622                 }
1623
1624                 break;
1625
1626         case ZoomFocusEdit:
1627                 /* try to keep the edit point in the same place */
1628                 where = get_preferred_edit_position ();
1629
1630                 if (where > 0) {
1631
1632                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1633
1634                         if (l < 0) {
1635                                 leftmost_after_zoom = 0;
1636                         } else if (l > max_frames) {
1637                                 leftmost_after_zoom = max_frames - new_page_size;
1638                         } else {
1639                                 leftmost_after_zoom = (nframes64_t) l;
1640                         }
1641
1642                 } else {
1643                         /* edit point not defined */
1644                         return;
1645                 }
1646                 break;
1647
1648         }
1649
1650         // leftmost_after_zoom = min (leftmost_after_zoom, _session->current_end_frame());
1651
1652         reposition_and_zoom (leftmost_after_zoom, nfpu);
1653 }
1654
1655 void
1656 Editor::temporal_zoom_region (bool both_axes)
1657 {
1658
1659         nframes64_t start = max_frames;
1660         nframes64_t end = 0;
1661         RegionSelection rs;
1662         set<TimeAxisView*> tracks;
1663
1664         get_regions_for_action (rs);
1665
1666         if (rs.empty()) {
1667                 return;
1668         }
1669
1670         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
1671
1672                 if ((*i)->region()->position() < start) {
1673                         start = (*i)->region()->position();
1674                 }
1675
1676                 if ((*i)->region()->last_frame() + 1 > end) {
1677                         end = (*i)->region()->last_frame() + 1;
1678                 }
1679
1680                 tracks.insert (&((*i)->get_time_axis_view()));
1681         }
1682
1683         /* now comes an "interesting" hack ... make sure we leave a little space
1684            at each end of the editor so that the zoom doesn't fit the region
1685            precisely to the screen.
1686         */
1687
1688         GdkScreen* screen = gdk_screen_get_default ();
1689         gint pixwidth = gdk_screen_get_width (screen);
1690         gint mmwidth = gdk_screen_get_width_mm (screen);
1691         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1692         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1693
1694         if ((start == 0 && end == 0) || end < start) {
1695                 return;
1696         }
1697
1698         nframes64_t range = end - start;
1699         double new_fpu = (double)range / (double)_canvas_width;
1700         nframes64_t extra_samples = (nframes64_t) floor (one_centimeter_in_pixels * new_fpu);
1701
1702         if (start > extra_samples) {
1703                 start -= extra_samples;
1704         } else {
1705                 start = 0;
1706         }
1707
1708         if (max_frames - extra_samples > end) {
1709                 end += extra_samples;
1710         } else {
1711                 end = max_frames;
1712         }
1713
1714         if (both_axes) {
1715                 /* save visual state with track states included, and prevent
1716                    set_frames_per_unit() from doing it again.
1717                 */
1718                 undo_visual_stack.push_back (current_visual_state(true));
1719                 no_save_visual = true;
1720         }
1721
1722         temporal_zoom_by_frame (start, end, "zoom to region");
1723
1724         if (both_axes) {
1725                 uint32_t per_track_height = (uint32_t) floor ((_canvas_height - canvas_timebars_vsize - 10.0) / tracks.size());
1726
1727                 /* set visible track heights appropriately */
1728
1729                 for (set<TimeAxisView*>::iterator t = tracks.begin(); t != tracks.end(); ++t) {
1730                         (*t)->set_height (per_track_height);
1731                 }
1732
1733                 /* hide irrelevant tracks */
1734
1735                 _routes->suspend_redisplay ();
1736
1737                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1738                         if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
1739                                 hide_track_in_display (*i, true);
1740                         }
1741                 }
1742
1743                 _routes->resume_redisplay ();
1744
1745                 vertical_adjustment.set_value (0.0);
1746                 no_save_visual = false;
1747         }
1748
1749         redo_visual_stack.push_back (current_visual_state());
1750 }
1751
1752 void
1753 Editor::zoom_to_region (bool both_axes)
1754 {
1755         temporal_zoom_region (both_axes);
1756 }
1757
1758 void
1759 Editor::temporal_zoom_selection ()
1760 {
1761         if (!selection) return;
1762
1763         if (selection->time.empty()) {
1764                 return;
1765         }
1766
1767         nframes64_t start = selection->time[clicked_selection].start;
1768         nframes64_t end = selection->time[clicked_selection].end;
1769
1770         temporal_zoom_by_frame (start, end, "zoom to selection");
1771 }
1772
1773 void
1774 Editor::temporal_zoom_session ()
1775 {
1776         ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_session)
1777
1778         if (_session) {
1779                 nframes_t const l = _session->current_end_frame() - _session->current_start_frame();
1780                 double s = _session->current_start_frame() - l * 0.01;
1781                 if (s < 0) {
1782                         s = 0;
1783                 }
1784                 nframes_t const e = _session->current_end_frame() + l * 0.01;
1785                 temporal_zoom_by_frame (nframes_t (s), e, "zoom to _session");
1786         }
1787 }
1788
1789 void
1790 Editor::temporal_zoom_by_frame (nframes64_t start, nframes64_t end, const string & /*op*/)
1791 {
1792         if (!_session) return;
1793
1794         if ((start == 0 && end == 0) || end < start) {
1795                 return;
1796         }
1797
1798         nframes64_t range = end - start;
1799
1800         double new_fpu = (double)range / (double)_canvas_width;
1801
1802         nframes64_t new_page = (nframes64_t) floor (_canvas_width * new_fpu);
1803         nframes64_t middle = (nframes64_t) floor( (double)start + ((double)range / 2.0f ));
1804         nframes64_t new_leftmost = (nframes64_t) floor( (double)middle - ((double)new_page/2.0f));
1805
1806         if (new_leftmost > middle) {
1807                 new_leftmost = 0;
1808         }
1809
1810         reposition_and_zoom (new_leftmost, new_fpu);
1811 }
1812
1813 void
1814 Editor::temporal_zoom_to_frame (bool coarser, nframes64_t frame)
1815 {
1816         if (!_session) {
1817                 return;
1818         }
1819         double range_before = frame - leftmost_frame;
1820         double new_fpu;
1821
1822         new_fpu = frames_per_unit;
1823
1824         if (coarser) {
1825                 new_fpu *= 1.61803399;
1826                 range_before *= 1.61803399;
1827         } else {
1828                 new_fpu = max(1.0,(new_fpu/1.61803399));
1829                 range_before /= 1.61803399;
1830         }
1831
1832         if (new_fpu == frames_per_unit)  {
1833                 return;
1834         }
1835
1836         nframes64_t new_leftmost = frame - (nframes64_t)range_before;
1837
1838         if (new_leftmost > frame) {
1839                 new_leftmost = 0;
1840         }
1841 //      begin_reversible_command (_("zoom to frame"));
1842 //      _session->add_undo (sigc::bind (sigc::mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1843 //      _session->add_redo (sigc::bind (sigc::mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1844 //      commit_reversible_command ();
1845
1846         reposition_and_zoom (new_leftmost, new_fpu);
1847 }
1848
1849
1850 bool
1851 Editor::choose_new_marker_name(string &name) {
1852
1853         if (!Config->get_name_new_markers()) {
1854                 /* don't prompt user for a new name */
1855                 return true;
1856         }
1857
1858         ArdourPrompter dialog (true);
1859
1860         dialog.set_prompt (_("New Name:"));
1861
1862         dialog.set_title (_("New Location Marker"));
1863
1864         dialog.set_name ("MarkNameWindow");
1865         dialog.set_size_request (250, -1);
1866         dialog.set_position (Gtk::WIN_POS_MOUSE);
1867
1868         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1869         dialog.set_initial_text (name);
1870
1871         dialog.show ();
1872
1873         switch (dialog.run ()) {
1874         case RESPONSE_ACCEPT:
1875                 break;
1876         default:
1877                 return false;
1878         }
1879
1880         dialog.get_result(name);
1881         return true;
1882
1883 }
1884
1885
1886 void
1887 Editor::add_location_from_selection ()
1888 {
1889         string rangename;
1890
1891         if (selection->time.empty()) {
1892                 return;
1893         }
1894
1895         if (_session == 0 || clicked_axisview == 0) {
1896                 return;
1897         }
1898
1899         nframes64_t start = selection->time[clicked_selection].start;
1900         nframes64_t end = selection->time[clicked_selection].end;
1901
1902         _session->locations()->next_available_name(rangename,"selection");
1903         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1904
1905         _session->begin_reversible_command (_("add marker"));
1906         XMLNode &before = _session->locations()->get_state();
1907         _session->locations()->add (location, true);
1908         XMLNode &after = _session->locations()->get_state();
1909         _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1910         _session->commit_reversible_command ();
1911 }
1912
1913 void
1914 Editor::add_location_mark (nframes64_t where)
1915 {
1916         string markername;
1917
1918         select_new_marker = true;
1919
1920         _session->locations()->next_available_name(markername,"mark");
1921         if (!choose_new_marker_name(markername)) {
1922                 return;
1923         }
1924         Location *location = new Location (where, where, markername, Location::IsMark);
1925         _session->begin_reversible_command (_("add marker"));
1926         XMLNode &before = _session->locations()->get_state();
1927         _session->locations()->add (location, true);
1928         XMLNode &after = _session->locations()->get_state();
1929         _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1930         _session->commit_reversible_command ();
1931 }
1932
1933 void
1934 Editor::add_location_from_playhead_cursor ()
1935 {
1936         add_location_mark (_session->audible_frame());
1937 }
1938
1939 void
1940 Editor::add_locations_from_audio_region ()
1941 {
1942         RegionSelection rs;
1943
1944         get_regions_for_action (rs);
1945
1946         if (rs.empty()) {
1947                 return;
1948         }
1949
1950         _session->begin_reversible_command (rs.size () > 1 ? _("add markers") : _("add marker"));
1951         XMLNode &before = _session->locations()->get_state();
1952
1953         cerr << "Add locations\n";
1954
1955         for (RegionSelection::iterator i = rs.begin (); i != rs.end (); ++i) {
1956
1957                 boost::shared_ptr<Region> region = (*i)->region ();
1958
1959                 Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
1960
1961                 _session->locations()->add (location, true);
1962         }
1963
1964         XMLNode &after = _session->locations()->get_state();
1965         _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1966         _session->commit_reversible_command ();
1967 }
1968
1969 void
1970 Editor::add_location_from_audio_region ()
1971 {
1972         RegionSelection rs;
1973
1974         get_regions_for_action (rs);
1975
1976         if (rs.empty()) {
1977                 return;
1978         }
1979
1980         _session->begin_reversible_command (_("add marker"));
1981         XMLNode &before = _session->locations()->get_state();
1982
1983         string markername;
1984
1985         if (rs.size() > 1) {            // more than one region selected
1986                 _session->locations()->next_available_name(markername, "regions");
1987         } else {
1988                 RegionView* rv = *(rs.begin());
1989                 boost::shared_ptr<Region> region = rv->region();
1990                 markername = region->name();
1991         }
1992
1993         if (!choose_new_marker_name(markername)) {
1994                 return;
1995         }
1996
1997         cerr << "Add location\n";
1998
1999         // single range spanning all selected
2000         Location *location = new Location (rs.start(), rs.end_frame(), markername, Location::IsRangeMarker);
2001         _session->locations()->add (location, true);
2002
2003         XMLNode &after = _session->locations()->get_state();
2004         _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
2005         _session->commit_reversible_command ();
2006 }
2007
2008 void
2009 Editor::amplitude_zoom_step (bool in)
2010 {
2011         gdouble zoom = 1.0;
2012
2013         if (in) {
2014                 zoom *= 2.0;
2015         } else {
2016                 if (zoom > 2.0) {
2017                         zoom /= 2.0;
2018                 } else {
2019                         zoom = 1.0;
2020                 }
2021         }
2022
2023 #ifdef FIX_FOR_CANVAS
2024         /* XXX DO SOMETHING */
2025 #endif
2026 }
2027
2028
2029 /* DELETION */
2030
2031
2032 void
2033 Editor::delete_sample_forward ()
2034 {
2035 }
2036
2037 void
2038 Editor::delete_sample_backward ()
2039 {
2040 }
2041
2042 void
2043 Editor::delete_screen ()
2044 {
2045 }
2046
2047 /* SEARCH */
2048
2049 void
2050 Editor::search_backwards ()
2051 {
2052         /* what ? */
2053 }
2054
2055 void
2056 Editor::search_forwards ()
2057 {
2058         /* what ? */
2059 }
2060
2061 /* MARKS */
2062
2063 void
2064 Editor::jump_forward_to_mark ()
2065 {
2066         if (!_session) {
2067                 return;
2068         }
2069
2070         Location *location = _session->locations()->first_location_after (playhead_cursor->current_frame);
2071
2072         if (location) {
2073                 _session->request_locate (location->start(), _session->transport_rolling());
2074         } else {
2075                 _session->request_locate (_session->current_end_frame());
2076         }
2077 }
2078
2079 void
2080 Editor::jump_backward_to_mark ()
2081 {
2082         if (!_session) {
2083                 return;
2084         }
2085
2086         Location *location = _session->locations()->first_location_before (playhead_cursor->current_frame);
2087
2088         if (location) {
2089                 _session->request_locate (location->start(), _session->transport_rolling());
2090         } else {
2091                 _session->goto_start ();
2092         }
2093 }
2094
2095 void
2096 Editor::set_mark ()
2097 {
2098         nframes64_t pos;
2099         float prefix;
2100         bool was_floating;
2101         string markername;
2102
2103         if (get_prefix (prefix, was_floating)) {
2104                 pos = _session->audible_frame ();
2105         } else {
2106                 if (was_floating) {
2107                         pos = (nframes64_t) floor (prefix * _session->frame_rate ());
2108                 } else {
2109                         pos = (nframes64_t) floor (prefix);
2110                 }
2111         }
2112
2113         _session->locations()->next_available_name(markername,"mark");
2114         if (!choose_new_marker_name(markername)) {
2115                 return;
2116         }
2117         _session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
2118 }
2119
2120 void
2121 Editor::clear_markers ()
2122 {
2123         if (_session) {
2124                 _session->begin_reversible_command (_("clear markers"));
2125                 XMLNode &before = _session->locations()->get_state();
2126                 _session->locations()->clear_markers ();
2127                 XMLNode &after = _session->locations()->get_state();
2128                 _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
2129                 _session->commit_reversible_command ();
2130         }
2131 }
2132
2133 void
2134 Editor::clear_ranges ()
2135 {
2136         if (_session) {
2137                 _session->begin_reversible_command (_("clear ranges"));
2138                 XMLNode &before = _session->locations()->get_state();
2139
2140                 Location * looploc = _session->locations()->auto_loop_location();
2141                 Location * punchloc = _session->locations()->auto_punch_location();
2142
2143                 _session->locations()->clear_ranges ();
2144                 // re-add these
2145                 if (looploc) _session->locations()->add (looploc);
2146                 if (punchloc) _session->locations()->add (punchloc);
2147
2148                 XMLNode &after = _session->locations()->get_state();
2149                 _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
2150                 _session->commit_reversible_command ();
2151         }
2152 }
2153
2154 void
2155 Editor::clear_locations ()
2156 {
2157         _session->begin_reversible_command (_("clear locations"));
2158         XMLNode &before = _session->locations()->get_state();
2159         _session->locations()->clear ();
2160         XMLNode &after = _session->locations()->get_state();
2161         _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
2162         _session->commit_reversible_command ();
2163         _session->locations()->clear ();
2164 }
2165
2166 void
2167 Editor::unhide_markers ()
2168 {
2169         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2170                 Location *l = (*i).first;
2171                 if (l->is_hidden() && l->is_mark()) {
2172                         l->set_hidden(false, this);
2173                 }
2174         }
2175 }
2176
2177 void
2178 Editor::unhide_ranges ()
2179 {
2180         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2181                 Location *l = (*i).first;
2182                 if (l->is_hidden() && l->is_range_marker()) {
2183                         l->set_hidden(false, this);
2184                 }
2185         }
2186 }
2187
2188 /* INSERT/REPLACE */
2189
2190 void
2191 Editor::insert_region_list_drag (boost::shared_ptr<Region> region, int x, int y)
2192 {
2193         double wx, wy;
2194         double cx, cy;
2195         nframes64_t where;
2196         RouteTimeAxisView *rtv = 0;
2197         boost::shared_ptr<Playlist> playlist;
2198
2199         track_canvas->window_to_world (x, y, wx, wy);
2200
2201         GdkEvent event;
2202         event.type = GDK_BUTTON_RELEASE;
2203         event.button.x = wx;
2204         event.button.y = wy;
2205
2206         where = event_frame (&event, &cx, &cy);
2207
2208         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
2209                 /* clearly outside canvas area */
2210                 return;
2211         }
2212
2213         std::pair<TimeAxisView*, int> tv = trackview_by_y_position (cy);
2214         if (tv.first == 0) {
2215                 return;
2216         }
2217
2218         if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
2219                 return;
2220         }
2221
2222         if ((playlist = rtv->playlist()) == 0) {
2223                 return;
2224         }
2225
2226         snap_to (where);
2227
2228         begin_reversible_command (_("insert dragged region"));
2229         playlist->clear_history ();
2230         playlist->add_region (RegionFactory::create (region), where, 1.0);
2231         _session->add_command(new StatefulDiffCommand (playlist));
2232         commit_reversible_command ();
2233 }
2234
2235 void
2236 Editor::insert_route_list_drag (boost::shared_ptr<Route> route, int x, int y)
2237 {
2238         double wx, wy;
2239         double cx, cy;
2240         nframes_t where;
2241         RouteTimeAxisView *dest_rtv = 0;
2242         RouteTimeAxisView *source_rtv = 0;
2243
2244         track_canvas->window_to_world (x, y, wx, wy);
2245         wx += horizontal_position ();
2246         wy += vertical_adjustment.get_value();
2247
2248         GdkEvent event;
2249         event.type = GDK_BUTTON_RELEASE;
2250         event.button.x = wx;
2251         event.button.y = wy;
2252
2253         where = event_frame (&event, &cx, &cy);
2254
2255         std::pair<TimeAxisView*, int> const tv = trackview_by_y_position (cy);
2256         if (tv.first == 0) {
2257                 return;
2258         }
2259
2260         if ((dest_rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
2261                 return;
2262         }
2263
2264         /* use this drag source to add underlay to a track. But we really don't care
2265            about the Route, only the view of the route, so find it first */
2266         for(TrackViewList::iterator it = track_views.begin(); it != track_views.end(); ++it) {
2267                 if((source_rtv = dynamic_cast<RouteTimeAxisView*>(*it)) == 0) {
2268                         continue;
2269                 }
2270
2271                 if(source_rtv->route() == route && source_rtv != dest_rtv) {
2272                         dest_rtv->add_underlay(source_rtv->view());
2273                         break;
2274                 }
2275         }
2276 }
2277
2278 void
2279 Editor::insert_region_list_selection (float times)
2280 {
2281         RouteTimeAxisView *tv = 0;
2282         boost::shared_ptr<Playlist> playlist;
2283
2284         if (clicked_routeview != 0) {
2285                 tv = clicked_routeview;
2286         } else if (!selection->tracks.empty()) {
2287                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2288                         return;
2289                 }
2290         } else if (entered_track != 0) {
2291                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2292                         return;
2293                 }
2294         } else {
2295                 return;
2296         }
2297
2298         if ((playlist = tv->playlist()) == 0) {
2299                 return;
2300         }
2301
2302         boost::shared_ptr<Region> region = _regions->get_single_selection ();
2303         if (region == 0) {
2304                 return;
2305         }
2306
2307         begin_reversible_command (_("insert region"));
2308         playlist->clear_history ();
2309         playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2310         _session->add_command(new StatefulDiffCommand (playlist));
2311         commit_reversible_command ();
2312 }
2313
2314 /* BUILT-IN EFFECTS */
2315
2316 void
2317 Editor::reverse_selection ()
2318 {
2319
2320 }
2321
2322 /* GAIN ENVELOPE EDITING */
2323
2324 void
2325 Editor::edit_envelope ()
2326 {
2327 }
2328
2329 /* PLAYBACK */
2330
2331 void
2332 Editor::transition_to_rolling (bool fwd)
2333 {
2334         if (!_session) {
2335                 return;
2336         }
2337
2338         if (_session->config.get_external_sync()) {
2339                 switch (_session->config.get_sync_source()) {
2340                 case JACK:
2341                         break;
2342                 default:
2343                         /* transport controlled by the master */
2344                         return;
2345                 }
2346         }
2347
2348         if (_session->is_auditioning()) {
2349                 _session->cancel_audition ();
2350                 return;
2351         }
2352
2353         _session->request_transport_speed (fwd ? 1.0f : -1.0f);
2354 }
2355
2356 void
2357 Editor::play_from_start ()
2358 {
2359         _session->request_locate (_session->current_start_frame(), true);
2360 }
2361
2362 void
2363 Editor::play_from_edit_point ()
2364 {
2365         _session->request_locate (get_preferred_edit_position(), true);
2366 }
2367
2368 void
2369 Editor::play_from_edit_point_and_return ()
2370 {
2371         nframes64_t start_frame;
2372         nframes64_t return_frame;
2373
2374         start_frame = get_preferred_edit_position (true);
2375
2376         if (_session->transport_rolling()) {
2377                 _session->request_locate (start_frame, false);
2378                 return;
2379         }
2380
2381         /* don't reset the return frame if its already set */
2382
2383         if ((return_frame = _session->requested_return_frame()) < 0) {
2384                 return_frame = _session->audible_frame();
2385         }
2386
2387         if (start_frame >= 0) {
2388                 _session->request_roll_at_and_return (start_frame, return_frame);
2389         }
2390 }
2391
2392 void
2393 Editor::play_selection ()
2394 {
2395         if (selection->time.empty()) {
2396                 return;
2397         }
2398
2399         _session->request_play_range (&selection->time, true);
2400 }
2401
2402 void
2403 Editor::loop_selected_region ()
2404 {
2405         RegionSelection rs;
2406
2407         get_regions_for_action (rs);
2408
2409         if (!rs.empty()) {
2410                 RegionView *rv = *(rs.begin());
2411                 Location* tll;
2412
2413                 if ((tll = transport_loop_location()) != 0)  {
2414
2415                         tll->set (rv->region()->position(), rv->region()->last_frame());
2416
2417                         // enable looping, reposition and start rolling
2418
2419                         _session->request_play_loop (true);
2420                         _session->request_locate (tll->start(), false);
2421                         _session->request_transport_speed (1.0f);
2422                 }
2423         }
2424 }
2425
2426 void
2427 Editor::play_location (Location& location)
2428 {
2429         if (location.start() <= location.end()) {
2430                 return;
2431         }
2432
2433         _session->request_bounded_roll (location.start(), location.end());
2434 }
2435
2436 void
2437 Editor::loop_location (Location& location)
2438 {
2439         if (location.start() <= location.end()) {
2440                 return;
2441         }
2442
2443         Location* tll;
2444
2445         if ((tll = transport_loop_location()) != 0) {
2446                 tll->set (location.start(), location.end());
2447
2448                 // enable looping, reposition and start rolling
2449                 _session->request_play_loop (true);
2450                 _session->request_locate (tll->start(), true);
2451         }
2452 }
2453
2454 void
2455 Editor::raise_region ()
2456 {
2457         selection->foreach_region (&Region::raise);
2458 }
2459
2460 void
2461 Editor::raise_region_to_top ()
2462 {
2463         selection->foreach_region (&Region::raise_to_top);
2464 }
2465
2466 void
2467 Editor::lower_region ()
2468 {
2469         selection->foreach_region (&Region::lower);
2470 }
2471
2472 void
2473 Editor::lower_region_to_bottom ()
2474 {
2475         selection->foreach_region (&Region::lower_to_bottom);
2476 }
2477
2478 /** Show the region editor for the selected regions */
2479 void
2480 Editor::edit_region ()
2481 {
2482         selection->foreach_regionview (&RegionView::show_region_editor);
2483 }
2484
2485 /** Show the midi list editor for the selected MIDI regions */
2486 void
2487 Editor::show_midi_list_editor ()
2488 {
2489         selection->foreach_midi_regionview (&MidiRegionView::show_list_editor);
2490 }
2491
2492 void
2493 Editor::rename_region()
2494 {
2495         RegionSelection rs;
2496
2497         get_regions_for_action (rs);
2498
2499         if (rs.empty()) {
2500                 return;
2501         }
2502
2503         ArdourDialog d (*this, _("Rename Region"), true, false);
2504         Entry entry;
2505         Label label (_("New name:"));
2506         HBox hbox;
2507
2508         hbox.set_spacing (6);
2509         hbox.pack_start (label, false, false);
2510         hbox.pack_start (entry, true, true);
2511
2512         d.get_vbox()->set_border_width (12);
2513         d.get_vbox()->pack_start (hbox, false, false);
2514
2515         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2516         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2517
2518         d.set_size_request (300, -1);
2519         d.set_position (Gtk::WIN_POS_MOUSE);
2520
2521         entry.set_text (rs.front()->region()->name());
2522         entry.select_region (0, -1);
2523
2524         entry.signal_activate().connect (sigc::bind (sigc::mem_fun (d, &Dialog::response), RESPONSE_OK));
2525
2526         d.show_all ();
2527
2528         entry.grab_focus();
2529
2530         int ret = d.run();
2531
2532         d.hide ();
2533
2534         if (ret == RESPONSE_OK) {
2535                 std::string str = entry.get_text();
2536                 strip_whitespace_edges (str);
2537                 if (!str.empty()) {
2538                         rs.front()->region()->set_name (str);
2539                         _regions->redisplay ();
2540                 }
2541         }
2542 }
2543
2544 void
2545 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2546 {
2547         if (_session->is_auditioning()) {
2548                 _session->cancel_audition ();
2549         }
2550
2551         // note: some potential for creativity here, because region doesn't
2552         // have to belong to the playlist that Route is handling
2553
2554         // bool was_soloed = route.soloed();
2555
2556         route.set_solo (true, this);
2557
2558         _session->request_bounded_roll (region->position(), region->position() + region->length());
2559
2560         /* XXX how to unset the solo state ? */
2561 }
2562
2563 /** Start an audition of the first selected region */
2564 void
2565 Editor::play_edit_range ()
2566 {
2567         nframes64_t start, end;
2568
2569         if (get_edit_op_range (start, end)) {
2570                 _session->request_bounded_roll (start, end);
2571         }
2572 }
2573
2574 void
2575 Editor::play_selected_region ()
2576 {
2577         nframes64_t start = max_frames;
2578         nframes64_t end = 0;
2579         RegionSelection rs;
2580
2581         get_regions_for_action (rs);
2582
2583         if (rs.empty()) {
2584                 return;
2585         }
2586
2587         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2588                 if ((*i)->region()->position() < start) {
2589                         start = (*i)->region()->position();
2590                 }
2591                 if ((*i)->region()->last_frame() + 1 > end) {
2592                         end = (*i)->region()->last_frame() + 1;
2593                 }
2594         }
2595
2596         _session->request_bounded_roll (start, end);
2597 }
2598
2599 void
2600 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2601 {
2602         _session->audition_region (region);
2603 }
2604
2605 void
2606 Editor::region_from_selection ()
2607 {
2608         if (clicked_axisview == 0) {
2609                 return;
2610         }
2611
2612         if (selection->time.empty()) {
2613                 return;
2614         }
2615
2616         nframes64_t start = selection->time[clicked_selection].start;
2617         nframes64_t end = selection->time[clicked_selection].end;
2618
2619         TrackViewList tracks = get_tracks_for_range_action ();
2620
2621         nframes64_t selection_cnt = end - start + 1;
2622
2623         for (TrackSelection::iterator i = tracks.begin(); i != tracks.end(); ++i) {
2624                 boost::shared_ptr<Region> current;
2625                 boost::shared_ptr<Playlist> pl;
2626                 nframes64_t internal_start;
2627                 string new_name;
2628
2629                 if ((pl = (*i)->playlist()) == 0) {
2630                         continue;
2631                 }
2632
2633                 if ((current = pl->top_region_at (start)) == 0) {
2634                         continue;
2635                 }
2636
2637                 internal_start = start - current->position();
2638                 RegionFactory::region_name (new_name, current->name(), true);
2639
2640                 PropertyList plist;
2641
2642                 plist.add (ARDOUR::Properties::start, current->start() + internal_start);
2643                 plist.add (ARDOUR::Properties::length, selection_cnt);
2644                 plist.add (ARDOUR::Properties::name, new_name);
2645                 plist.add (ARDOUR::Properties::layer, 0);
2646
2647                 boost::shared_ptr<Region> region (RegionFactory::create (current, plist));
2648         }
2649 }
2650
2651 void
2652 Editor::create_region_from_selection (vector<boost::shared_ptr<Region> >& new_regions)
2653 {
2654         if (selection->time.empty() || selection->tracks.empty()) {
2655                 return;
2656         }
2657
2658         nframes64_t start = selection->time[clicked_selection].start;
2659         nframes64_t end = selection->time[clicked_selection].end;
2660
2661         sort_track_selection ();
2662
2663         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2664                 boost::shared_ptr<Region> current;
2665                 boost::shared_ptr<Playlist> playlist;
2666                 nframes64_t internal_start;
2667                 string new_name;
2668
2669                 if ((playlist = (*i)->playlist()) == 0) {
2670                         continue;
2671                 }
2672
2673                 if ((current = playlist->top_region_at(start)) == 0) {
2674                         continue;
2675                 }
2676
2677                 internal_start = start - current->position();
2678                 RegionFactory::region_name (new_name, current->name(), true);
2679
2680                 PropertyList plist;
2681
2682                 plist.add (ARDOUR::Properties::start, current->start() + internal_start);
2683                 plist.add (ARDOUR::Properties::length, end - start + 1);
2684                 plist.add (ARDOUR::Properties::name, new_name);
2685
2686                 new_regions.push_back (RegionFactory::create (current, plist));
2687         }
2688 }
2689
2690 void
2691 Editor::split_multichannel_region ()
2692 {
2693         RegionSelection rs;
2694
2695         get_regions_for_action (rs);
2696
2697         if (rs.empty()) {
2698                 return;
2699         }
2700
2701         vector< boost::shared_ptr<Region> > v;
2702
2703         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2704                 (*x)->region()->separate_by_channel (*_session, v);
2705         }
2706 }
2707
2708 void
2709 Editor::new_region_from_selection ()
2710 {
2711         region_from_selection ();
2712         cancel_selection ();
2713 }
2714
2715 static void
2716 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2717 {
2718         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2719         case OverlapNone:
2720                 break;
2721         default:
2722                 rs->push_back (rv);
2723         }
2724 }
2725
2726 /** Return either:
2727  *    - selected tracks, or if there are none...
2728  *    - tracks containing selected regions, or if there are none...
2729  *    - all tracks
2730  * @return tracks.
2731  */
2732 TrackViewList
2733 Editor::get_tracks_for_range_action () const
2734 {
2735         TrackViewList t;
2736
2737         if (selection->tracks.empty()) {
2738
2739                 /* use tracks with selected regions */
2740
2741                 RegionSelection rs = selection->regions;
2742
2743                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2744                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2745
2746                         if (!t.contains (tv)) {
2747                                 t.push_back (tv);
2748                         }
2749                 }
2750
2751                 if (t.empty()) {
2752                         /* no regions and no tracks: use all tracks */
2753                         t = track_views;
2754                 }
2755
2756         } else {
2757
2758                 t = selection->tracks;
2759         }
2760
2761         return t;
2762 }
2763
2764 void
2765 Editor::separate_regions_between (const TimeSelection& ts)
2766 {
2767         bool in_command = false;
2768         boost::shared_ptr<Playlist> playlist;
2769         RegionSelection new_selection;
2770
2771         TrackViewList tmptracks = get_tracks_for_range_action ();
2772         sort_track_selection (&tmptracks);
2773
2774         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2775
2776                 RouteTimeAxisView* rtv;
2777
2778                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2779
2780                         if (rtv->is_track()) {
2781
2782                                 /* no edits to destructive tracks */
2783
2784                                 if (rtv->track()->destructive()) {
2785                                         continue;
2786                                 }
2787
2788                                 if ((playlist = rtv->playlist()) != 0) {
2789
2790                                         playlist->clear_history ();
2791
2792                                         /* XXX need to consider musical time selections here at some point */
2793
2794                                         double speed = rtv->track()->speed();
2795
2796
2797                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2798
2799                                                 sigc::connection c = rtv->view()->RegionViewAdded.connect (
2800                                                                 sigc::mem_fun(*this, &Editor::collect_new_region_view));
2801                                                 latest_regionviews.clear ();
2802
2803                                                 playlist->partition ((nframes64_t)((*t).start * speed),
2804                                                                 (nframes64_t)((*t).end * speed), true);
2805
2806                                                 c.disconnect ();
2807
2808                                                 if (!latest_regionviews.empty()) {
2809
2810                                                         rtv->view()->foreach_regionview (sigc::bind (
2811                                                                                 sigc::ptr_fun (add_if_covered),
2812                                                                                 &(*t), &new_selection));
2813
2814                                                         if (!in_command) {
2815                                                                 begin_reversible_command (_("separate"));
2816                                                                 in_command = true;
2817                                                         }
2818
2819                                                         _session->add_command(new StatefulDiffCommand (playlist));
2820                                                 }
2821                                         }
2822                                 }
2823                         }
2824                 }
2825         }
2826
2827         if (in_command) {
2828                 selection->set (new_selection);
2829                 set_mouse_mode (MouseObject);
2830
2831                 commit_reversible_command ();
2832         }
2833 }
2834
2835 /** Take tracks from get_tracks_for_range_action and cut any regions
2836  *  on those tracks so that the tracks are empty over the time
2837  *  selection.
2838  */
2839 void
2840 Editor::separate_region_from_selection ()
2841 {
2842         /* preferentially use *all* ranges in the time selection if we're in range mode
2843            to allow discontiguous operation, since get_edit_op_range() currently
2844            returns a single range.
2845         */
2846
2847         if (mouse_mode == MouseRange && !selection->time.empty()) {
2848
2849                 separate_regions_between (selection->time);
2850
2851         } else {
2852
2853                 nframes64_t start;
2854                 nframes64_t end;
2855
2856                 if (get_edit_op_range (start, end)) {
2857
2858                         AudioRange ar (start, end, 1);
2859                         TimeSelection ts;
2860                         ts.push_back (ar);
2861
2862                         separate_regions_between (ts);
2863                 }
2864         }
2865 }
2866
2867 void
2868 Editor::separate_region_from_punch ()
2869 {
2870         Location* loc  = _session->locations()->auto_punch_location();
2871         if (loc) {
2872                 separate_regions_using_location (*loc);
2873         }
2874 }
2875
2876 void
2877 Editor::separate_region_from_loop ()
2878 {
2879         Location* loc  = _session->locations()->auto_loop_location();
2880         if (loc) {
2881                 separate_regions_using_location (*loc);
2882         }
2883 }
2884
2885 void
2886 Editor::separate_regions_using_location (Location& loc)
2887 {
2888         if (loc.is_mark()) {
2889                 return;
2890         }
2891
2892         AudioRange ar (loc.start(), loc.end(), 1);
2893         TimeSelection ts;
2894
2895         ts.push_back (ar);
2896
2897         separate_regions_between (ts);
2898 }
2899
2900 void
2901 Editor::crop_region_to_selection ()
2902 {
2903         if (!selection->time.empty()) {
2904
2905                 crop_region_to (selection->time.start(), selection->time.end_frame());
2906
2907         } else {
2908
2909                 nframes64_t start;
2910                 nframes64_t end;
2911
2912                 if (get_edit_op_range (start, end)) {
2913                         crop_region_to (start, end);
2914                 }
2915         }
2916
2917 }
2918
2919 void
2920 Editor::crop_region_to (nframes64_t start, nframes64_t end)
2921 {
2922         vector<boost::shared_ptr<Playlist> > playlists;
2923         boost::shared_ptr<Playlist> playlist;
2924         TrackViewList* ts;
2925
2926         if (selection->tracks.empty()) {
2927                 ts = &track_views;
2928         } else {
2929                 sort_track_selection ();
2930                 ts = &selection->tracks;
2931         }
2932
2933         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
2934
2935                 RouteTimeAxisView* rtv;
2936
2937                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2938
2939                         boost::shared_ptr<Track> t = rtv->track();
2940
2941                         if (t != 0 && ! t->destructive()) {
2942
2943                                 if ((playlist = rtv->playlist()) != 0) {
2944                                         playlists.push_back (playlist);
2945                                 }
2946                         }
2947                 }
2948         }
2949
2950         if (playlists.empty()) {
2951                 return;
2952         }
2953
2954         nframes64_t the_start;
2955         nframes64_t the_end;
2956         nframes64_t cnt;
2957
2958         begin_reversible_command (_("trim to selection"));
2959
2960         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
2961
2962                 boost::shared_ptr<Region> region;
2963
2964                 the_start = start;
2965
2966                 if ((region = (*i)->top_region_at(the_start)) == 0) {
2967                         continue;
2968                 }
2969
2970                 /* now adjust lengths to that we do the right thing
2971                    if the selection extends beyond the region
2972                 */
2973
2974                 the_start = max (the_start, (nframes64_t) region->position());
2975                 if (max_frames - the_start < region->length()) {
2976                         the_end = the_start + region->length() - 1;
2977                 } else {
2978                         the_end = max_frames;
2979                 }
2980                 the_end = min (end, the_end);
2981                 cnt = the_end - the_start + 1;
2982
2983                 region->clear_history ();
2984                 region->trim_to (the_start, cnt, this);
2985                 _session->add_command (new StatefulDiffCommand (region));
2986         }
2987
2988         commit_reversible_command ();
2989 }
2990
2991 void
2992 Editor::region_fill_track ()
2993 {
2994         nframes64_t end;
2995         RegionSelection rs;
2996
2997         get_regions_for_action (rs);
2998
2999         if (!_session || rs.empty()) {
3000                 return;
3001         }
3002
3003         end = _session->current_end_frame ();
3004
3005         begin_reversible_command (_("region fill"));
3006
3007         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3008
3009                 boost::shared_ptr<Region> region ((*i)->region());
3010
3011                 boost::shared_ptr<Playlist> pl = region->playlist();
3012
3013                 if (end <= region->last_frame()) {
3014                         return;
3015                 }
3016
3017                 double times = (double) (end - region->last_frame()) / (double) region->length();
3018
3019                 if (times == 0) {
3020                         return;
3021                 }
3022
3023                 pl->clear_history ();
3024                 pl->add_region (RegionFactory::create (region), region->last_frame(), times);
3025                 _session->add_command (new StatefulDiffCommand (pl));
3026         }
3027
3028         commit_reversible_command ();
3029 }
3030
3031 void
3032 Editor::region_fill_selection ()
3033 {
3034         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3035                 return;
3036         }
3037
3038         if (selection->time.empty()) {
3039                 return;
3040         }
3041
3042         boost::shared_ptr<Region> region = _regions->get_single_selection ();
3043         if (region == 0) {
3044                 return;
3045         }
3046
3047         nframes64_t start = selection->time[clicked_selection].start;
3048         nframes64_t end = selection->time[clicked_selection].end;
3049
3050         boost::shared_ptr<Playlist> playlist;
3051
3052         if (selection->tracks.empty()) {
3053                 return;
3054         }
3055
3056         nframes64_t selection_length = end - start;
3057         float times = (float)selection_length / region->length();
3058
3059         begin_reversible_command (_("fill selection"));
3060
3061         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3062
3063                 if ((playlist = (*i)->playlist()) == 0) {
3064                         continue;
3065                 }
3066
3067                 playlist->clear_history ();
3068                 playlist->add_region (RegionFactory::create (region), start, times);
3069                 _session->add_command (new StatefulDiffCommand (playlist));
3070         }
3071
3072         commit_reversible_command ();
3073 }
3074
3075 void
3076 Editor::set_region_sync_from_edit_point ()
3077 {
3078         nframes64_t where = get_preferred_edit_position ();
3079         RegionSelection rs;
3080         get_regions_for_action (rs);
3081         set_sync_point (where, rs);
3082 }
3083
3084 void
3085 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
3086 {
3087         bool in_command = false;
3088
3089         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3090
3091                 if (!(*r)->region()->covers (where)) {
3092                         continue;
3093                 }
3094
3095                 boost::shared_ptr<Region> region ((*r)->region());
3096
3097                 if (!in_command) {
3098                         begin_reversible_command (_("set sync point"));
3099                         in_command = true;
3100                 }
3101
3102                 region->clear_history ();
3103                 region->set_sync_position (where);
3104                 _session->add_command(new StatefulDiffCommand (region));
3105         }
3106
3107         if (in_command) {
3108                 commit_reversible_command ();
3109         }
3110 }
3111
3112 /** Remove the sync positions of the selection */
3113 void
3114 Editor::remove_region_sync ()
3115 {
3116         RegionSelection rs;
3117
3118         get_regions_for_action (rs);
3119
3120         if (rs.empty()) {
3121                 return;
3122         }
3123
3124         begin_reversible_command (_("remove sync"));
3125         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3126
3127                 (*i)->region()->clear_history ();
3128                 (*i)->region()->clear_sync_position ();
3129                 _session->add_command(new StatefulDiffCommand ((*i)->region()));
3130         }
3131         commit_reversible_command ();
3132 }
3133
3134 void
3135 Editor::naturalize ()
3136 {
3137         RegionSelection rs;
3138
3139         get_regions_for_action (rs);
3140
3141         if (rs.empty()) {
3142                 return;
3143         }
3144
3145         begin_reversible_command (_("naturalize"));
3146         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3147                 (*i)->region()->clear_history ();
3148                 (*i)->region()->move_to_natural_position (this);
3149                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
3150         }
3151         commit_reversible_command ();
3152 }
3153
3154 void
3155 Editor::align (RegionPoint what)
3156 {
3157         RegionSelection rs;
3158
3159         get_regions_for_action (rs);
3160         nframes64_t where = get_preferred_edit_position();
3161
3162         if (!rs.empty()) {
3163                 align_selection (what, where, rs);
3164         } else {
3165
3166                 RegionSelection rs;
3167                 get_regions_at (rs, where, selection->tracks);
3168                 align_selection (what, where, rs);
3169         }
3170 }
3171
3172 void
3173 Editor::align_relative (RegionPoint what)
3174 {
3175         nframes64_t where = get_preferred_edit_position();
3176         RegionSelection rs;
3177
3178         get_regions_for_action (rs);
3179
3180         if (!rs.empty()) {
3181                 align_selection_relative (what, where, rs);
3182         }
3183 }
3184
3185 struct RegionSortByTime {
3186     bool operator() (const RegionView* a, const RegionView* b) {
3187             return a->region()->position() < b->region()->position();
3188     }
3189 };
3190
3191 void
3192 Editor::align_selection_relative (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3193 {
3194         if (rs.empty()) {
3195                 return;
3196         }
3197
3198         nframes64_t distance = 0;
3199         nframes64_t pos = 0;
3200         int dir = 1;
3201
3202         list<RegionView*> sorted;
3203         rs.by_position (sorted);
3204
3205         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3206
3207         switch (point) {
3208         case Start:
3209                 pos = position;
3210                 if (position > r->position()) {
3211                         distance = position - r->position();
3212                 } else {
3213                         distance = r->position() - position;
3214                         dir = -1;
3215                 }
3216                 break;
3217
3218         case End:
3219                 if (position > r->last_frame()) {
3220                         distance = position - r->last_frame();
3221                         pos = r->position() + distance;
3222                 } else {
3223                         distance = r->last_frame() - position;
3224                         pos = r->position() - distance;
3225                         dir = -1;
3226                 }
3227                 break;
3228
3229         case SyncPoint:
3230                 pos = r->adjust_to_sync (position);
3231                 if (pos > r->position()) {
3232                         distance = pos - r->position();
3233                 } else {
3234                         distance = r->position() - pos;
3235                         dir = -1;
3236                 }
3237                 break;
3238         }
3239
3240         if (pos == r->position()) {
3241                 return;
3242         }
3243
3244         begin_reversible_command (_("align selection (relative)"));
3245
3246         /* move first one specially */
3247
3248         r->clear_history ();
3249         r->set_position (pos, this);
3250         _session->add_command(new StatefulDiffCommand (r));
3251
3252         /* move rest by the same amount */
3253
3254         sorted.pop_front();
3255
3256         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3257
3258                 boost::shared_ptr<Region> region ((*i)->region());
3259
3260                 region->clear_history ();
3261
3262                 if (dir > 0) {
3263                         region->set_position (region->position() + distance, this);
3264                 } else {
3265                         region->set_position (region->position() - distance, this);
3266                 }
3267
3268                 _session->add_command(new StatefulDiffCommand (region));
3269
3270         }
3271
3272         commit_reversible_command ();
3273 }
3274
3275 void
3276 Editor::align_selection (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3277 {
3278         if (rs.empty()) {
3279                 return;
3280         }
3281
3282         begin_reversible_command (_("align selection"));
3283
3284         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3285                 align_region_internal ((*i)->region(), point, position);
3286         }
3287
3288         commit_reversible_command ();
3289 }
3290
3291 void
3292 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3293 {
3294         begin_reversible_command (_("align region"));
3295         align_region_internal (region, point, position);
3296         commit_reversible_command ();
3297 }
3298
3299 void
3300 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3301 {
3302         region->clear_history ();
3303
3304         switch (point) {
3305         case SyncPoint:
3306                 region->set_position (region->adjust_to_sync (position), this);
3307                 break;
3308
3309         case End:
3310                 if (position > region->length()) {
3311                         region->set_position (position - region->length(), this);
3312                 }
3313                 break;
3314
3315         case Start:
3316                 region->set_position (position, this);
3317                 break;
3318         }
3319
3320         _session->add_command(new StatefulDiffCommand (region));
3321 }
3322
3323 void
3324 Editor::trim_region_front ()
3325 {
3326         trim_region (true);
3327 }
3328
3329 void
3330 Editor::trim_region_back ()
3331 {
3332         trim_region (false);
3333 }
3334
3335 void
3336 Editor::trim_region (bool front)
3337 {
3338         nframes64_t where = get_preferred_edit_position();
3339         RegionSelection rs;
3340
3341         get_regions_for_action (rs);
3342
3343         if (rs.empty()) {
3344                 return;
3345         }
3346
3347         begin_reversible_command (front ? _("trim front") : _("trim back"));
3348
3349         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
3350                 if (!(*i)->region()->locked()) {
3351                         (*i)->region()->clear_history ();
3352                         if (front) {
3353                                 (*i)->region()->trim_front (where, this);
3354                         } else {
3355                                 (*i)->region()->trim_end (where, this);
3356                         }
3357                         _session->add_command (new StatefulDiffCommand ((*i)->region()));
3358                 }
3359         }
3360
3361         commit_reversible_command ();
3362 }
3363
3364 /** Trim the end of the selected regions to the position of the edit cursor */
3365 void
3366 Editor::trim_region_to_loop ()
3367 {
3368         Location* loc = _session->locations()->auto_loop_location();
3369         if (!loc) {
3370                 return;
3371         }
3372         trim_region_to_location (*loc, _("trim to loop"));
3373 }
3374
3375 void
3376 Editor::trim_region_to_punch ()
3377 {
3378         Location* loc = _session->locations()->auto_punch_location();
3379         if (!loc) {
3380                 return;
3381         }
3382         trim_region_to_location (*loc, _("trim to punch"));
3383 }
3384 void
3385 Editor::trim_region_to_location (const Location& loc, const char* str)
3386 {
3387         RegionSelection rs;
3388
3389         get_regions_for_action (rs);
3390
3391         begin_reversible_command (str);
3392
3393         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3394                 RegionView* rv = (*x);
3395
3396                 /* require region to span proposed trim */
3397                 switch (rv->region()->coverage (loc.start(), loc.end())) {
3398                 case OverlapInternal:
3399                         break;
3400                 default:
3401                         continue;
3402                 }
3403
3404                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3405                 if (!tav) {
3406                         return;
3407                 }
3408
3409                 float speed = 1.0;
3410                 nframes64_t start;
3411                 nframes64_t end;
3412
3413                 if (tav->track() != 0) {
3414                         speed = tav->track()->speed();
3415                 }
3416
3417                 start = session_frame_to_track_frame (loc.start(), speed);
3418                 end = session_frame_to_track_frame (loc.end(), speed);
3419
3420                 rv->region()->clear_history ();
3421                 rv->region()->trim_to (start, (end - start), this);
3422                 _session->add_command(new StatefulDiffCommand (rv->region()));
3423         }
3424
3425         commit_reversible_command ();
3426 }
3427
3428 void
3429 Editor::trim_region_to_edit_point ()
3430 {
3431         RegionSelection rs;
3432
3433         get_regions_for_action (rs);
3434
3435         nframes64_t where = get_preferred_edit_position();
3436
3437         begin_reversible_command (_("trim region start to edit point"));
3438
3439         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3440                 RegionView* rv = (*x);
3441
3442                 /* require region to cover trim */
3443                 if (!rv->region()->covers (where)) {
3444                         continue;
3445                 }
3446
3447                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3448                 if (!tav) {
3449                         return;
3450                 }
3451
3452                 float speed = 1.0;
3453
3454                 if (tav->track() != 0) {
3455                         speed = tav->track()->speed();
3456                 }
3457
3458                 rv->region()->clear_history ();
3459                 rv->region()->trim_end (session_frame_to_track_frame(where, speed), this);
3460                 _session->add_command(new StatefulDiffCommand (rv->region()));
3461         }
3462
3463         commit_reversible_command ();
3464 }
3465
3466 void
3467 Editor::trim_region_from_edit_point ()
3468 {
3469         RegionSelection rs;
3470
3471         get_regions_for_action (rs);
3472
3473         nframes64_t where = get_preferred_edit_position();
3474
3475         begin_reversible_command (_("trim region end to edit point"));
3476
3477         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3478                 RegionView* rv = (*x);
3479
3480                 /* require region to cover trim */
3481                 if (!rv->region()->covers (where)) {
3482                         continue;
3483                 }
3484
3485                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3486                 if (!tav) {
3487                         return;
3488                 }
3489
3490                 float speed = 1.0;
3491
3492                 if (tav->track() != 0) {
3493                         speed = tav->track()->speed();
3494                 }
3495
3496                 rv->region()->clear_history ();
3497                 rv->region()->trim_front (session_frame_to_track_frame(where, speed), this);
3498                 _session->add_command(new StatefulDiffCommand (rv->region()));
3499         }
3500
3501         commit_reversible_command ();
3502 }
3503
3504 void
3505 Editor::trim_region_to_previous_region_end ()
3506 {
3507         return trim_to_region(false);
3508 }
3509
3510 void
3511 Editor::trim_region_to_next_region_start ()
3512 {
3513         return trim_to_region(true);
3514 }
3515
3516 void
3517 Editor::trim_to_region(bool forward)
3518 {
3519         RegionSelection rs;
3520
3521         get_regions_for_action (rs);
3522
3523         begin_reversible_command (_("trim to region"));
3524
3525         boost::shared_ptr<Region> next_region;
3526
3527         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3528
3529                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3530
3531                 if (!arv) {
3532                         continue;
3533                 }
3534
3535                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3536
3537                 if (!atav) {
3538                         return;
3539                 }
3540
3541                 float speed = 1.0;
3542
3543                 if (atav->track() != 0) {
3544                         speed = atav->track()->speed();
3545                 }
3546
3547
3548                 boost::shared_ptr<Region> region = arv->region();
3549                 boost::shared_ptr<Playlist> playlist (region->playlist());
3550
3551                 region->clear_history ();
3552
3553                 if(forward){
3554
3555                     next_region = playlist->find_next_region (region->first_frame(), Start, 1);
3556
3557                     if(!next_region){
3558                         continue;
3559                     }
3560
3561                     region->trim_end((nframes64_t) (next_region->first_frame() * speed), this);
3562                     arv->region_changed (PropertyChange (ARDOUR::Properties::length));
3563                 }
3564                 else {
3565
3566                     next_region = playlist->find_next_region (region->first_frame(), Start, 0);
3567
3568                     if(!next_region){
3569                         continue;
3570                     }
3571
3572                     region->trim_front((nframes64_t) ((next_region->last_frame() + 1) * speed), this);
3573
3574                     arv->region_changed (ARDOUR::bounds_change);
3575                 }
3576
3577                 _session->add_command(new StatefulDiffCommand (region));
3578         }
3579
3580         commit_reversible_command ();
3581 }
3582
3583 void
3584 Editor::unfreeze_route ()
3585 {
3586         if (clicked_routeview == 0 || !clicked_routeview->is_track()) {
3587                 return;
3588         }
3589
3590         clicked_routeview->track()->unfreeze ();
3591 }
3592
3593 void*
3594 Editor::_freeze_thread (void* arg)
3595 {
3596         SessionEvent::create_per_thread_pool ("freeze events", 64);
3597
3598         return static_cast<Editor*>(arg)->freeze_thread ();
3599 }
3600
3601 void*
3602 Editor::freeze_thread ()
3603 {
3604         clicked_routeview->audio_track()->freeze_me (*current_interthread_info);
3605         current_interthread_info->done = true;
3606         return 0;
3607 }
3608
3609 void
3610 Editor::freeze_route ()
3611 {
3612         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3613                 return;
3614         }
3615
3616         InterThreadInfo itt;
3617         current_interthread_info = &itt;
3618
3619         InterthreadProgressWindow ipw (current_interthread_info, _("Freeze"), _("Cancel Freeze"));
3620
3621         pthread_create_and_store (X_("freezer"), &itt.thread, _freeze_thread, this);
3622
3623         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3624
3625         while (!itt.done && !itt.cancel) {
3626                 gtk_main_iteration ();
3627         }
3628
3629         current_interthread_info = 0;
3630         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3631 }
3632
3633 void
3634 Editor::bounce_range_selection (bool replace, bool enable_processing)
3635 {
3636         if (selection->time.empty()) {
3637                 return;
3638         }
3639
3640         TrackSelection views = selection->tracks;
3641
3642         nframes64_t start = selection->time[clicked_selection].start;
3643         nframes64_t end = selection->time[clicked_selection].end;
3644         nframes64_t cnt = end - start + 1;
3645
3646         begin_reversible_command (_("bounce range"));
3647
3648         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3649
3650                 RouteTimeAxisView* rtv;
3651
3652                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
3653                         continue;
3654                 }
3655
3656                 boost::shared_ptr<Playlist> playlist;
3657
3658                 if ((playlist = rtv->playlist()) == 0) {
3659                         return;
3660                 }
3661
3662                 InterThreadInfo itt;
3663
3664                 playlist->clear_history ();
3665                 boost::shared_ptr<Region> r = rtv->track()->bounce_range (start, start+cnt, itt, enable_processing);
3666
3667                 if (replace) {
3668                         list<AudioRange> ranges;
3669                         ranges.push_back (AudioRange (start, start+cnt, 0));
3670                         playlist->cut (ranges); // discard result
3671                         playlist->add_region (r, start);
3672                 }
3673
3674                 _session->add_command (new StatefulDiffCommand (playlist));
3675         }
3676
3677         commit_reversible_command ();
3678 }
3679
3680 /** Cut selected regions, automation points or a time range */
3681 void
3682 Editor::cut ()
3683 {
3684         cut_copy (Cut);
3685 }
3686
3687 /** Copy selected regions, automation points or a time range */
3688 void
3689 Editor::copy ()
3690 {
3691         cut_copy (Copy);
3692 }
3693
3694
3695 /** @return true if a Cut, Copy or Clear is possible */
3696 bool
3697 Editor::can_cut_copy () const
3698 {
3699         switch (current_mouse_mode()) {
3700
3701         case MouseObject:
3702                 if (!selection->regions.empty() || !selection->points.empty()) {
3703                         return true;
3704                 }
3705                 break;
3706
3707         case MouseRange:
3708                 if (!selection->time.empty()) {
3709                         return true;
3710                 }
3711                 break;
3712
3713         default:
3714                 break;
3715         }
3716
3717         return false;
3718 }
3719
3720
3721 /** Cut, copy or clear selected regions, automation points or a time range.
3722  * @param op Operation (Cut, Copy or Clear)
3723  */
3724 void
3725 Editor::cut_copy (CutCopyOp op)
3726 {
3727         /* only cancel selection if cut/copy is successful.*/
3728
3729         string opname;
3730
3731         switch (op) {
3732         case Cut:
3733                 opname = _("cut");
3734                 break;
3735         case Copy:
3736                 opname = _("copy");
3737                 break;
3738         case Clear:
3739                 opname = _("clear");
3740                 break;
3741         }
3742
3743         /* if we're deleting something, and the mouse is still pressed,
3744            the thing we started a drag for will be gone when we release
3745            the mouse button(s). avoid this. see part 2 at the end of
3746            this function.
3747         */
3748
3749         if (op == Cut || op == Clear) {
3750                 if (_drags->active ()) {
3751                         _drags->abort ();
3752                 }
3753         }
3754
3755         cut_buffer->clear ();
3756
3757         if (entered_marker) {
3758
3759                 /* cut/delete op while pointing at a marker */
3760
3761                 bool ignored;
3762                 Location* loc = find_location_from_marker (entered_marker, ignored);
3763
3764                 if (_session && loc) {
3765                         Glib::signal_idle().connect (sigc::bind (sigc::mem_fun(*this, &Editor::really_remove_marker), loc));
3766                 }
3767
3768                 _drags->abort ();
3769                 return;
3770         }
3771
3772         if (internal_editing()) {
3773
3774                 switch (current_mouse_mode()) {
3775                 case MouseObject:
3776                 case MouseRange:
3777                         cut_copy_midi (op);
3778                         break;
3779                 default:
3780                         break;
3781                 }
3782
3783         } else {
3784
3785                 RegionSelection rs;
3786
3787                 /* we only want to cut regions if some are selected */
3788
3789                 if (!selection->regions.empty()) {
3790                         get_regions_for_action (rs, false, false);
3791                 }
3792
3793                 switch (current_mouse_mode()) {
3794                 case MouseObject:
3795                         if (!rs.empty() || !selection->points.empty()) {
3796
3797                                 begin_reversible_command (opname + _(" objects"));
3798
3799                                 if (!rs.empty()) {
3800                                         cut_copy_regions (op, rs);
3801
3802                                         if (op == Cut) {
3803                                                 selection->clear_regions ();
3804                                         }
3805                                 }
3806
3807                                 if (!selection->points.empty()) {
3808                                         cut_copy_points (op);
3809
3810                                         if (op == Cut) {
3811                                                 selection->clear_points ();
3812                                         }
3813                                 }
3814
3815                                 commit_reversible_command ();
3816                                 break; // terminate case statement here
3817                         }
3818                         if (!selection->time.empty()) {
3819                                 /* don't cause suprises */
3820                                 break;
3821                         }
3822                         // fall thru if there was nothing selected
3823
3824                 case MouseRange:
3825                         if (selection->time.empty()) {
3826                                 nframes64_t start, end;
3827                                 if (!get_edit_op_range (start, end)) {
3828                                         return;
3829                                 }
3830                                 selection->set (start, end);
3831                         }
3832
3833                         begin_reversible_command (opname + _(" range"));
3834                         cut_copy_ranges (op);
3835                         commit_reversible_command ();
3836
3837                         if (op == Cut) {
3838                                 selection->clear_time ();
3839                         }
3840
3841                         break;
3842
3843                 default:
3844                         break;
3845                 }
3846         }
3847
3848         if (op == Cut || op == Clear) {
3849                 _drags->abort ();
3850         }
3851 }
3852
3853 /** Cut, copy or clear selected automation points.
3854  * @param op Operation (Cut, Copy or Clear)
3855  */
3856 void
3857 Editor::cut_copy_points (CutCopyOp op)
3858 {
3859         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3860
3861                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>((*i).track);
3862
3863                 if (atv) {
3864                         atv->cut_copy_clear_objects (selection->points, op);
3865                 }
3866         }
3867 }
3868
3869 /** Cut, copy or clear selected automation points.
3870  * @param op Operation (Cut, Copy or Clear)
3871  */
3872 void
3873 Editor::cut_copy_midi (CutCopyOp op)
3874 {
3875         for (MidiRegionSelection::iterator i = selection->midi_regions.begin(); i != selection->midi_regions.end(); ++i) {
3876                 MidiRegionView* mrv = *i;
3877                 mrv->cut_copy_clear (op);
3878         }
3879 }
3880
3881 struct PlaylistMapping {
3882     TimeAxisView* tv;
3883     boost::shared_ptr<Playlist> pl;
3884
3885     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
3886 };
3887
3888 /** Remove `clicked_regionview' */
3889 void
3890 Editor::remove_clicked_region ()
3891 {
3892         if (clicked_routeview == 0 || clicked_regionview == 0) {
3893                 return;
3894         }
3895
3896         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
3897
3898         begin_reversible_command (_("remove region"));
3899         playlist->clear_history ();
3900         playlist->remove_region (clicked_regionview->region());
3901         _session->add_command(new StatefulDiffCommand (playlist));
3902         commit_reversible_command ();
3903 }
3904
3905
3906 /** Remove the selected regions */
3907 void
3908 Editor::remove_selected_regions ()
3909 {
3910         RegionSelection rs;
3911         get_regions_for_action (rs);
3912
3913         if (!_session) {
3914                 return;
3915         }
3916
3917         if (rs.empty()) {
3918                 return;
3919         }
3920
3921         begin_reversible_command (_("remove region"));
3922
3923         list<boost::shared_ptr<Region> > regions_to_remove;
3924
3925         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3926                 // we can't just remove the region(s) in this loop because
3927                 // this removes them from the RegionSelection, and they thus
3928                 // disappear from underneath the iterator, and the ++i above
3929                 // SEGVs in a puzzling fashion.
3930
3931                 // so, first iterate over the regions to be removed from rs and
3932                 // add them to the regions_to_remove list, and then
3933                 // iterate over the list to actually remove them.
3934
3935                 regions_to_remove.push_back ((*i)->region());
3936         }
3937
3938         vector<boost::shared_ptr<Playlist> > playlists;
3939
3940         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
3941
3942                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
3943
3944                 if (!playlist) {
3945                         // is this check necessary?
3946                         continue;
3947                 }
3948
3949                 vector<boost::shared_ptr<Playlist> >::iterator i;
3950
3951                 //only prep history if this is a new playlist.
3952                 for (i = playlists.begin(); i != playlists.end(); ++i) {
3953                         if ((*i) == playlist) {
3954                                 break;
3955                         }
3956                 }
3957
3958                 if (i == playlists.end()) {
3959
3960                         playlist->clear_history ();
3961                         playlist->freeze ();
3962
3963                         playlists.push_back (playlist);
3964                 }
3965
3966                 playlist->remove_region (*rl);
3967         }
3968
3969         vector<boost::shared_ptr<Playlist> >::iterator pl;
3970
3971         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
3972                 (*pl)->thaw ();
3973                 _session->add_command(new StatefulDiffCommand (*pl));
3974         }
3975
3976         commit_reversible_command ();
3977 }
3978
3979 /** Cut, copy or clear selected regions.
3980  * @param op Operation (Cut, Copy or Clear)
3981  */
3982 void
3983 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
3984 {
3985         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
3986            a map when we want ordered access to both elements. i think.
3987         */
3988
3989         vector<PlaylistMapping> pmap;
3990
3991         nframes64_t first_position = max_frames;
3992
3993         typedef set<boost::shared_ptr<Playlist> > FreezeList;
3994         FreezeList freezelist;
3995
3996         /* get ordering correct before we cut/copy */
3997
3998         rs.sort_by_position_and_track ();
3999
4000         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4001
4002                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
4003
4004                 if (op == Cut || op == Clear) {
4005                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4006
4007                         if (pl) {
4008                                 FreezeList::iterator fl;
4009
4010                                 //only take state if this is a new playlist.
4011                                 for (fl = freezelist.begin(); fl != freezelist.end(); ++fl) {
4012                                         if ((*fl) == pl) {
4013                                                 break;
4014                                         }
4015                                 }
4016
4017                                 if (fl == freezelist.end()) {
4018                                         pl->clear_history();
4019                                         pl->freeze ();
4020                                         freezelist.insert (pl);
4021                                 }
4022                         }
4023                 }
4024
4025                 TimeAxisView* tv = &(*x)->get_trackview();
4026                 vector<PlaylistMapping>::iterator z;
4027
4028                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4029                         if ((*z).tv == tv) {
4030                                 break;
4031                         }
4032                 }
4033
4034                 if (z == pmap.end()) {
4035                         pmap.push_back (PlaylistMapping (tv));
4036                 }
4037         }
4038
4039         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
4040
4041                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4042
4043                 if (!pl) {
4044                         /* impossible, but this handles it for the future */
4045                         continue;
4046                 }
4047
4048                 TimeAxisView& tv = (*x)->get_trackview();
4049                 boost::shared_ptr<Playlist> npl;
4050                 RegionSelection::iterator tmp;
4051
4052                 tmp = x;
4053                 ++tmp;
4054
4055                 vector<PlaylistMapping>::iterator z;
4056
4057                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4058                         if ((*z).tv == &tv) {
4059                                 break;
4060                         }
4061                 }
4062
4063                 assert (z != pmap.end());
4064
4065                 if (!(*z).pl) {
4066                         npl = PlaylistFactory::create (pl->data_type(), *_session, "cutlist", true);
4067                         npl->freeze();
4068                         (*z).pl = npl;
4069                 } else {
4070                         npl = (*z).pl;
4071                 }
4072
4073                 boost::shared_ptr<Region> r = (*x)->region();
4074                 boost::shared_ptr<Region> _xx;
4075
4076                 assert (r != 0);
4077
4078                 switch (op) {
4079                 case Cut:
4080                         _xx = RegionFactory::create (r);
4081                         npl->add_region (_xx, r->position() - first_position);
4082                         pl->remove_region (r);
4083                         break;
4084
4085                 case Copy:
4086                         /* copy region before adding, so we're not putting same object into two different playlists */
4087                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
4088                         break;
4089
4090                 case Clear:
4091                         pl->remove_region (r);
4092                         break;
4093                 }
4094
4095                 x = tmp;
4096         }
4097
4098         list<boost::shared_ptr<Playlist> > foo;
4099
4100         /* the pmap is in the same order as the tracks in which selected regions occured */
4101
4102         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4103                 (*i).pl->thaw();
4104                 foo.push_back ((*i).pl);
4105         }
4106
4107
4108         if (!foo.empty()) {
4109                 cut_buffer->set (foo);
4110         }
4111
4112         for (FreezeList::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4113                 (*pl)->thaw ();
4114                 _session->add_command (new StatefulDiffCommand (*pl));
4115         }
4116 }
4117
4118 void
4119 Editor::cut_copy_ranges (CutCopyOp op)
4120 {
4121         TrackViewList* ts;
4122         TrackViewList entered;
4123
4124         if (selection->tracks.empty()) {
4125                 if (!entered_track) {
4126                         return;
4127                 }
4128                 entered.push_back (entered_track);
4129                 ts = &entered;
4130         } else {
4131                 ts = &selection->tracks;
4132         }
4133
4134         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
4135                 (*i)->cut_copy_clear (*selection, op);
4136         }
4137 }
4138
4139 void
4140 Editor::paste (float times)
4141 {
4142         paste_internal (get_preferred_edit_position(), times);
4143 }
4144
4145 void
4146 Editor::mouse_paste ()
4147 {
4148         nframes64_t where;
4149         bool ignored;
4150
4151         if (!mouse_frame (where, ignored)) {
4152                 return;
4153         }
4154
4155         snap_to (where);
4156         paste_internal (where, 1);
4157 }
4158
4159 void
4160 Editor::paste_internal (nframes64_t position, float times)
4161 {
4162         bool commit = false;
4163
4164         if (internal_editing()) {
4165                 if (cut_buffer->midi_notes.empty()) {
4166                         return;
4167                 }
4168         } else {
4169                 if (cut_buffer->empty()) {
4170                         return;
4171                 }
4172         }
4173
4174         if (position == max_frames) {
4175                 position = get_preferred_edit_position();
4176         }
4177
4178         begin_reversible_command (_("paste"));
4179
4180         TrackViewList ts;
4181         TrackViewList::iterator i;
4182         size_t nth;
4183
4184         /* get everything in the correct order */
4185
4186         if (!selection->tracks.empty()) {
4187                 sort_track_selection ();
4188                 ts = selection->tracks;
4189         } else if (entered_track) {
4190                 ts.push_back (entered_track);
4191         }
4192
4193         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4194
4195                 /* undo/redo is handled by individual tracks/regions */
4196
4197                 if (internal_editing()) {
4198
4199                         RegionSelection rs;
4200                         RegionSelection::iterator r;
4201                         MidiNoteSelection::iterator cb;
4202
4203                         get_regions_at (rs, position, ts);
4204
4205                         for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
4206                              cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
4207                                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
4208                                 if (mrv) {
4209                                         mrv->paste (position, times, **cb);
4210                                         ++cb;
4211                                 }
4212                         }
4213
4214                 } else {
4215
4216                         if ((*i)->paste (position, times, *cut_buffer, nth)) {
4217                                 commit = true;
4218                         }
4219                 }
4220         }
4221
4222         if (commit) {
4223                 commit_reversible_command ();
4224         }
4225 }
4226
4227 void
4228 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4229 {
4230         boost::shared_ptr<Playlist> playlist;
4231         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4232         RegionSelection foo;
4233
4234         nframes_t const start_frame = regions.start ();
4235         nframes_t const end_frame = regions.end_frame ();
4236
4237         begin_reversible_command (_("duplicate region"));
4238
4239         selection->clear_regions ();
4240
4241         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4242
4243                 boost::shared_ptr<Region> r ((*i)->region());
4244
4245                 TimeAxisView& tv = (*i)->get_time_axis_view();
4246                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4247                 latest_regionviews.clear ();
4248                 sigc::connection c = rtv->view()->RegionViewAdded.connect (sigc::mem_fun(*this, &Editor::collect_new_region_view));
4249
4250                 playlist = (*i)->region()->playlist();
4251                 playlist->clear_history ();
4252                 playlist->duplicate (r, end_frame + (r->first_frame() - start_frame) + 1, times);
4253                 _session->add_command(new StatefulDiffCommand (playlist));
4254
4255                 c.disconnect ();
4256
4257                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4258         }
4259
4260         commit_reversible_command ();
4261
4262         if (!foo.empty()) {
4263                 selection->set (foo);
4264         }
4265 }
4266
4267 void
4268 Editor::duplicate_selection (float times)
4269 {
4270         if (selection->time.empty() || selection->tracks.empty()) {
4271                 return;
4272         }
4273
4274         boost::shared_ptr<Playlist> playlist;
4275         vector<boost::shared_ptr<Region> > new_regions;
4276         vector<boost::shared_ptr<Region> >::iterator ri;
4277
4278         create_region_from_selection (new_regions);
4279
4280         if (new_regions.empty()) {
4281                 return;
4282         }
4283
4284         begin_reversible_command (_("duplicate selection"));
4285
4286         ri = new_regions.begin();
4287
4288         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4289                 if ((playlist = (*i)->playlist()) == 0) {
4290                         continue;
4291                 }
4292                 playlist->clear_history ();
4293                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4294                 _session->add_command (new StatefulDiffCommand (playlist));
4295
4296                 ++ri;
4297                 if (ri == new_regions.end()) {
4298                         --ri;
4299                 }
4300         }
4301
4302         commit_reversible_command ();
4303 }
4304
4305 void
4306 Editor::reset_point_selection ()
4307 {
4308         /* reset all selected points to the relevant default value */
4309
4310         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4311
4312                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>((*i).track);
4313
4314                 if (atv) {
4315                         atv->reset_objects (selection->points);
4316                 }
4317         }
4318 }
4319
4320 void
4321 Editor::center_playhead ()
4322 {
4323         float page = _canvas_width * frames_per_unit;
4324         center_screen_internal (playhead_cursor->current_frame, page);
4325 }
4326
4327 void
4328 Editor::center_edit_point ()
4329 {
4330         float page = _canvas_width * frames_per_unit;
4331         center_screen_internal (get_preferred_edit_position(), page);
4332 }
4333
4334 void
4335 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4336 {
4337         begin_reversible_command (_("clear playlist"));
4338         playlist->clear_history ();
4339         playlist->clear ();
4340         _session->add_command (new StatefulDiffCommand (playlist));
4341         commit_reversible_command ();
4342 }
4343
4344 void
4345 Editor::nudge_track (bool use_edit, bool forwards)
4346 {
4347         boost::shared_ptr<Playlist> playlist;
4348         nframes64_t distance;
4349         nframes64_t next_distance;
4350         nframes64_t start;
4351
4352         if (use_edit) {
4353                 start = get_preferred_edit_position();
4354         } else {
4355                 start = 0;
4356         }
4357
4358         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4359                 return;
4360         }
4361
4362         if (selection->tracks.empty()) {
4363                 return;
4364         }
4365
4366         begin_reversible_command (_("nudge track"));
4367
4368         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4369
4370                 if ((playlist = (*i)->playlist()) == 0) {
4371                         continue;
4372                 }
4373
4374                 playlist->clear_history ();
4375                 playlist->clear_owned_history ();
4376
4377                 playlist->nudge_after (start, distance, forwards);
4378
4379                 vector<StatefulDiffCommand*> cmds;
4380
4381                 playlist->rdiff (cmds);
4382
4383                 for (vector<StatefulDiffCommand*>::iterator c = cmds.begin(); c != cmds.end(); ++c) {
4384                         _session->add_command (*c);
4385                 }
4386
4387                 _session->add_command (new StatefulDiffCommand (playlist));
4388         }
4389
4390         commit_reversible_command ();
4391 }
4392
4393 void
4394 Editor::remove_last_capture ()
4395 {
4396         vector<string> choices;
4397         string prompt;
4398
4399         if (!_session) {
4400                 return;
4401         }
4402
4403         if (Config->get_verify_remove_last_capture()) {
4404                 prompt  = _("Do you really want to destroy the last capture?"
4405                             "\n(This is destructive and cannot be undone)");
4406
4407                 choices.push_back (_("No, do nothing."));
4408                 choices.push_back (_("Yes, destroy it."));
4409
4410                 Gtkmm2ext::Choice prompter (_("Destroy last capture"), prompt, choices);
4411
4412                 if (prompter.run () == 1) {
4413                         _session->remove_last_capture ();
4414                 }
4415
4416         } else {
4417                 _session->remove_last_capture();
4418         }
4419 }
4420
4421 void
4422 Editor::normalize_region ()
4423 {
4424         if (!_session) {
4425                 return;
4426         }
4427
4428         RegionSelection rs;
4429         get_regions_for_action (rs);
4430
4431         if (rs.empty()) {
4432                 return;
4433         }
4434
4435         Dialog dialog (rs.size() > 1 ? _("Normalize regions") : _("Normalize region"));
4436         HBox hbox;
4437         hbox.set_spacing (6);
4438         hbox.set_border_width (6);
4439         hbox.pack_start (*manage (new Label (_("Normalize to:"))));
4440         SpinButton spin (0.2, 2);
4441         spin.set_range (-112, 0);
4442         spin.set_increments (0.1, 1);
4443         spin.set_value (0);
4444         hbox.pack_start (spin);
4445         spin.set_value (_last_normalization_value);
4446         hbox.pack_start (*manage (new Label (_("dbFS"))));
4447         hbox.show_all ();
4448         dialog.get_vbox()->set_spacing (12);
4449         dialog.get_vbox()->pack_start (hbox);
4450         dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
4451         dialog.add_button (_("Normalize"), RESPONSE_ACCEPT);
4452
4453         if (dialog.run () == RESPONSE_CANCEL) {
4454                 return;
4455         }
4456
4457         begin_reversible_command (_("normalize"));
4458
4459         track_canvas->get_window()->set_cursor (*wait_cursor);
4460         gdk_flush ();
4461
4462         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4463                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4464                 if (!arv)
4465                         continue;
4466                 arv->region()->clear_history ();
4467                 arv->audio_region()->normalize_to (spin.get_value());
4468                 _session->add_command (new StatefulDiffCommand (arv->region()));
4469
4470         }
4471
4472         commit_reversible_command ();
4473         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4474
4475         _last_normalization_value = spin.get_value ();
4476 }
4477
4478
4479 void
4480 Editor::reset_region_scale_amplitude ()
4481 {
4482         if (!_session) {
4483                 return;
4484         }
4485
4486         RegionSelection rs;
4487
4488         get_regions_for_action (rs);
4489
4490         if (rs.empty()) {
4491                 return;
4492         }
4493
4494         begin_reversible_command ("reset gain");
4495
4496         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4497                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4498                 if (!arv)
4499                         continue;
4500                 arv->region()->clear_history ();
4501                 arv->audio_region()->set_scale_amplitude (1.0f);
4502                 _session->add_command (new StatefulDiffCommand (arv->region()));
4503         }
4504
4505         commit_reversible_command ();
4506 }
4507
4508 void
4509 Editor::adjust_region_scale_amplitude (bool up)
4510 {
4511         if (!_session) {
4512                 return;
4513         }
4514
4515         RegionSelection rs;
4516
4517         get_regions_for_action (rs);
4518
4519         if (rs.empty()) {
4520                 return;
4521         }
4522
4523         begin_reversible_command ("denormalize");
4524
4525         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4526                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4527                 if (!arv) {
4528                         continue;
4529                 }
4530
4531                 arv->region()->clear_history ();
4532
4533                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4534
4535                 if (up) {
4536                         fraction += 0.05;
4537                         fraction = min (fraction, 1.0);
4538                 } else {
4539                         fraction -= 0.05;
4540                         fraction = max (fraction, 0.0);
4541                 }
4542
4543                 if (!up && fraction <= 0) {
4544                         continue;
4545                 }
4546
4547                 fraction = slider_position_to_gain (fraction);
4548
4549                 if (up && fraction >= 2.0) {
4550                         continue;
4551                 }
4552
4553                 arv->audio_region()->set_scale_amplitude (fraction);
4554                 _session->add_command (new StatefulDiffCommand (arv->region()));
4555         }
4556
4557         commit_reversible_command ();
4558 }
4559
4560
4561 void
4562 Editor::reverse_region ()
4563 {
4564         if (!_session) {
4565                 return;
4566         }
4567
4568         Reverse rev (*_session);
4569         apply_filter (rev, _("reverse regions"));
4570 }
4571
4572 void
4573 Editor::strip_region_silence ()
4574 {
4575         if (!_session) {
4576                 return;
4577         }
4578
4579         RegionSelection rs;
4580         get_regions_for_action (rs);
4581
4582         if (rs.empty()) {
4583                 return;
4584         }
4585
4586         std::list<boost::shared_ptr<AudioRegion> > ar;
4587
4588         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4589                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*i);
4590                 if (arv) {
4591                         ar.push_back (arv->audio_region ());
4592                 }
4593         }
4594
4595         StripSilenceDialog d (_session, ar);
4596         int const r = d.run ();
4597
4598         if (r == Gtk::RESPONSE_OK) {
4599                 StripSilence s (*_session, d.threshold (), d.minimum_length (), d.fade_length ());
4600                 apply_filter (s, _("strip silence"));
4601         }
4602 }
4603
4604 Command*
4605 Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv)
4606 {
4607         Evoral::Sequence<Evoral::MusicalTime>::Notes selected;
4608         mrv.selection_as_notelist (selected, true);
4609
4610         vector<Evoral::Sequence<Evoral::MusicalTime>::Notes> v;
4611         v.push_back (selected);
4612
4613         return op (mrv.midi_region()->model(), v);
4614 }
4615
4616 void
4617 Editor::apply_midi_note_edit_op (MidiOperator& op)
4618 {
4619         RegionSelection rs;
4620         Command* cmd;
4621
4622         get_regions_for_action (rs);
4623
4624         if (rs.empty()) {
4625                 return;
4626         }
4627
4628         begin_reversible_command (op.name ());
4629
4630         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4631                 RegionSelection::iterator tmp = r;
4632                 ++tmp;
4633
4634                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4635
4636                 if (mrv) {
4637                         cmd = apply_midi_note_edit_op_to_region (op, *mrv);
4638                         if (cmd) {
4639                                 (*cmd)();
4640                                 _session->add_command (cmd);
4641                         }
4642                 }
4643
4644                 r = tmp;
4645         }
4646
4647         commit_reversible_command ();
4648         rs.clear ();
4649 }
4650
4651 void
4652 Editor::fork_region ()
4653 {
4654         RegionSelection rs;
4655
4656         get_regions_for_action (rs);
4657
4658         if (rs.empty()) {
4659                 return;
4660         }
4661
4662         begin_reversible_command (_("Fork Region(s)"));
4663
4664         track_canvas->get_window()->set_cursor (*wait_cursor);
4665         gdk_flush ();
4666
4667         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4668                 RegionSelection::iterator tmp = r;
4669                 ++tmp;
4670
4671                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*>(*r);
4672
4673                 if (mrv) {
4674                         boost::shared_ptr<Playlist> playlist = mrv->region()->playlist();
4675                         boost::shared_ptr<MidiRegion> newregion = mrv->midi_region()->clone ();
4676
4677                         playlist->clear_history ();
4678                         cerr << "Replace region with " << newregion->name() << endl;
4679                         playlist->replace_region (mrv->region(), newregion, mrv->region()->position());
4680                         _session->add_command(new StatefulDiffCommand (playlist));
4681                 }
4682
4683                 r = tmp;
4684         }
4685
4686         commit_reversible_command ();
4687         rs.clear ();
4688
4689         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4690 }
4691
4692 void
4693 Editor::quantize_region ()
4694 {
4695         if (!_session) {
4696                 return;
4697         }
4698
4699         QuantizeDialog* qd = new QuantizeDialog (*this);
4700
4701         qd->present ();
4702         const int r = qd->run ();
4703         qd->hide ();
4704
4705         if (r == Gtk::RESPONSE_OK) {
4706                 Quantize quant (*_session, Plain,
4707                                 qd->snap_start(), qd->snap_end(),
4708                                 qd->start_grid_size(), qd->end_grid_size(),
4709                                 qd->strength(), qd->swing(), qd->threshold());
4710
4711                 apply_midi_note_edit_op (quant);
4712         }
4713 }
4714
4715 void
4716 Editor::apply_filter (Filter& filter, string command)
4717 {
4718         RegionSelection rs;
4719
4720         get_regions_for_action (rs);
4721
4722         if (rs.empty()) {
4723                 return;
4724         }
4725
4726         begin_reversible_command (command);
4727
4728         track_canvas->get_window()->set_cursor (*wait_cursor);
4729         gdk_flush ();
4730
4731         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4732                 RegionSelection::iterator tmp = r;
4733                 ++tmp;
4734
4735                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4736                 if (arv) {
4737                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4738
4739                         if (arv->audio_region()->apply (filter) == 0) {
4740
4741                                 playlist->clear_history ();
4742
4743                                 if (filter.results.empty ()) {
4744
4745                                         /* no regions returned; remove the old one */
4746                                         playlist->remove_region (arv->region ());
4747
4748                                 } else {
4749
4750                                         std::vector<boost::shared_ptr<Region> >::iterator res = filter.results.begin ();
4751
4752                                         /* first region replaces the old one */
4753                                         playlist->replace_region (arv->region(), *res, (*res)->position());
4754                                         ++res;
4755
4756                                         /* add the rest */
4757                                         while (res != filter.results.end()) {
4758                                                 playlist->add_region (*res, (*res)->position());
4759                                                 ++res;
4760                                         }
4761
4762                                 }
4763
4764                                 _session->add_command(new StatefulDiffCommand (playlist));
4765                         } else {
4766                                 goto out;
4767                         }
4768                 }
4769
4770                 r = tmp;
4771         }
4772
4773         commit_reversible_command ();
4774         rs.clear ();
4775
4776   out:
4777         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4778 }
4779
4780 void
4781 Editor::region_selection_op (void (Region::*pmf)(void))
4782 {
4783         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4784                 Region* region = (*i)->region().get();
4785                 (region->*pmf)();
4786         }
4787 }
4788
4789
4790 void
4791 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4792 {
4793         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4794                 Region* region = (*i)->region().get();
4795                 (region->*pmf)(arg);
4796         }
4797 }
4798
4799 void
4800 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4801 {
4802         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4803                 Region* region = (*i)->region().get();
4804                 (region->*pmf)(yn);
4805         }
4806 }
4807
4808 void
4809 Editor::external_edit_region ()
4810 {
4811         /* more to come */
4812 }
4813
4814 void
4815 Editor::brush (nframes64_t pos)
4816 {
4817         RegionSelection sel;
4818         RegionSelection rs;
4819
4820         get_regions_for_action (rs);
4821
4822         snap_to (pos);
4823
4824         if (rs.empty()) {
4825                 return;
4826         }
4827
4828         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4829                 mouse_brush_insert_region ((*i), pos);
4830         }
4831 }
4832
4833 void
4834 Editor::reset_region_gain_envelopes ()
4835 {
4836         RegionSelection rs = get_equivalent_regions (selection->regions, ARDOUR::Properties::edit.property_id);
4837
4838         if (!_session || rs.empty()) {
4839                 return;
4840         }
4841
4842         _session->begin_reversible_command (_("reset region gain"));
4843
4844         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4845                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4846                 if (arv) {
4847                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
4848                         XMLNode& before (alist->get_state());
4849
4850                         arv->audio_region()->set_default_envelope ();
4851                         _session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
4852                 }
4853         }
4854
4855         _session->commit_reversible_command ();
4856 }
4857
4858 void
4859 Editor::toggle_gain_envelope_visibility ()
4860 {
4861         RegionSelection rs = get_equivalent_regions (selection->regions, ARDOUR::Properties::edit.property_id);
4862
4863         if (!_session || rs.empty()) {
4864                 return;
4865         }
4866
4867         _session->begin_reversible_command (_("region gain envelope visible"));
4868
4869         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4870                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4871                 if (arv) {
4872                         arv->region()->clear_history ();
4873                         arv->set_envelope_visible (!arv->envelope_visible());
4874                         _session->add_command (new StatefulDiffCommand (arv->region()));
4875                 }
4876         }
4877
4878         _session->commit_reversible_command ();
4879 }
4880
4881 void
4882 Editor::toggle_gain_envelope_active ()
4883 {
4884         RegionSelection rs = get_equivalent_regions (selection->regions, ARDOUR::Properties::edit.property_id);
4885
4886         if (!_session || rs.empty()) {
4887                 return;
4888         }
4889
4890         _session->begin_reversible_command (_("region gain envelope active"));
4891
4892         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4893                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4894                 if (arv) {
4895                         arv->region()->clear_history ();
4896                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
4897                         _session->add_command (new StatefulDiffCommand (arv->region()));
4898                 }
4899         }
4900
4901         _session->commit_reversible_command ();
4902 }
4903
4904 void
4905 Editor::toggle_region_lock ()
4906 {
4907         RegionSelection rs = get_equivalent_regions (selection->regions, ARDOUR::Properties::edit.property_id);
4908
4909         if (!_session || rs.empty()) {
4910                 return;
4911         }
4912
4913         _session->begin_reversible_command (_("region lock"));
4914
4915         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4916                 (*i)->region()->clear_history ();
4917                 (*i)->region()->set_locked (!(*i)->region()->locked());
4918                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
4919         }
4920
4921         _session->commit_reversible_command ();
4922 }
4923
4924 void
4925 Editor::toggle_region_lock_style ()
4926 {
4927         RegionSelection rs = get_equivalent_regions (selection->regions, ARDOUR::Properties::edit.property_id);
4928
4929         if (!_session || rs.empty()) {
4930                 return;
4931         }
4932
4933         _session->begin_reversible_command (_("region lock style"));
4934
4935         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4936                 (*i)->region()->clear_history ();
4937                 Region::PositionLockStyle const ns = (*i)->region()->positional_lock_style() == Region::AudioTime ? Region::MusicTime : Region::AudioTime;
4938                 (*i)->region()->set_position_lock_style (ns);
4939                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
4940         }
4941
4942         _session->commit_reversible_command ();
4943 }
4944
4945
4946 void
4947 Editor::toggle_region_mute ()
4948 {
4949         RegionSelection rs = get_equivalent_regions (selection->regions, ARDOUR::Properties::edit.property_id);
4950
4951         if (!_session || rs.empty()) {
4952                 return;
4953         }
4954
4955         _session->begin_reversible_command (_("region mute"));
4956
4957         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4958                 (*i)->region()->clear_history ();
4959                 (*i)->region()->set_muted (!(*i)->region()->muted());
4960                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
4961         }
4962
4963         _session->commit_reversible_command ();
4964 }
4965
4966 void
4967 Editor::toggle_region_opaque ()
4968 {
4969         RegionSelection rs = get_equivalent_regions (selection->regions, ARDOUR::Properties::edit.property_id);
4970
4971         if (!_session || rs.empty()) {
4972                 return;
4973         }
4974
4975         _session->begin_reversible_command (_("region opacity"));
4976
4977         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4978                 (*i)->region()->clear_history ();
4979                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
4980                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
4981         }
4982
4983         _session->commit_reversible_command ();
4984 }
4985
4986 void
4987 Editor::toggle_record_enable ()
4988 {
4989         bool new_state = false;
4990         bool first = true;
4991         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4992                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
4993                 if (!rtav)
4994                         continue;
4995                 if (!rtav->is_track())
4996                         continue;
4997
4998                 if (first) {
4999                         new_state = !rtav->track()->record_enabled();
5000                         first = false;
5001                 }
5002
5003                 rtav->track()->set_record_enable(new_state, this);
5004         }
5005 }
5006
5007
5008 void
5009 Editor::set_fade_length (bool in)
5010 {
5011         RegionSelection rs;
5012
5013         get_regions_for_action (rs, true);
5014
5015         if (rs.empty()) {
5016                 return;
5017         }
5018
5019         /* we need a region to measure the offset from the start */
5020
5021         RegionView* rv = rs.front ();
5022
5023         nframes64_t pos = get_preferred_edit_position();
5024         nframes64_t len;
5025         char const * cmd;
5026
5027         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
5028                 /* edit point is outside the relevant region */
5029                 return;
5030         }
5031
5032         if (in) {
5033                 if (pos <= rv->region()->position()) {
5034                         /* can't do it */
5035                         return;
5036                 }
5037                 len = pos - rv->region()->position();
5038                 cmd = _("set fade in length");
5039         } else {
5040                 if (pos >= rv->region()->last_frame()) {
5041                         /* can't do it */
5042                         return;
5043                 }
5044                 len = rv->region()->last_frame() - pos;
5045                 cmd = _("set fade out length");
5046         }
5047
5048         begin_reversible_command (cmd);
5049
5050         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5051                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5052
5053                 if (!tmp) {
5054                         return;
5055                 }
5056
5057                 boost::shared_ptr<AutomationList> alist;
5058                 if (in) {
5059                         alist = tmp->audio_region()->fade_in();
5060                 } else {
5061                         alist = tmp->audio_region()->fade_out();
5062                 }
5063
5064                 XMLNode &before = alist->get_state();
5065
5066                 if (in) {
5067                         tmp->audio_region()->set_fade_in_length (len);
5068                         tmp->audio_region()->set_fade_in_active (true);
5069                 } else {
5070                         tmp->audio_region()->set_fade_out_length (len);
5071                         tmp->audio_region()->set_fade_out_active (true);
5072                 }
5073
5074                 XMLNode &after = alist->get_state();
5075                 _session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
5076         }
5077
5078         commit_reversible_command ();
5079 }
5080
5081 void
5082 Editor::toggle_fade_active (bool in)
5083 {
5084         RegionSelection rs;
5085
5086         get_regions_for_action (rs);
5087
5088         if (rs.empty()) {
5089                 return;
5090         }
5091
5092         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
5093         bool have_switch = false;
5094         bool yn = false;
5095
5096         begin_reversible_command (cmd);
5097
5098         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5099                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5100
5101                 if (!tmp) {
5102                         return;
5103                 }
5104
5105                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
5106
5107                 /* make the behaviour consistent across all regions */
5108
5109                 if (!have_switch) {
5110                         if (in) {
5111                                 yn = region->fade_in_active();
5112                         } else {
5113                                 yn = region->fade_out_active();
5114                         }
5115                         have_switch = true;
5116                 }
5117
5118                 region->clear_history ();
5119
5120                 if (in) {
5121                         region->set_fade_in_active (!yn);
5122                 } else {
5123                         region->set_fade_out_active (!yn);
5124                 }
5125
5126                 _session->add_command(new StatefulDiffCommand (region));
5127         }
5128
5129         commit_reversible_command ();
5130 }
5131
5132 void
5133 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
5134 {
5135         RegionSelection rs;
5136
5137         get_regions_for_action (rs);
5138
5139         if (rs.empty()) {
5140                 return;
5141         }
5142
5143         begin_reversible_command (_("set fade in shape"));
5144
5145         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5146                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5147
5148                 if (!tmp) {
5149                         return;
5150                 }
5151
5152                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
5153                 XMLNode &before = alist->get_state();
5154
5155                 tmp->audio_region()->set_fade_in_shape (shape);
5156
5157                 XMLNode &after = alist->get_state();
5158                 _session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5159         }
5160
5161         commit_reversible_command ();
5162
5163 }
5164
5165 void
5166 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
5167 {
5168         RegionSelection rs;
5169
5170         get_regions_for_action (rs);
5171
5172         if (rs.empty()) {
5173                 return;
5174         }
5175
5176         begin_reversible_command (_("set fade out shape"));
5177
5178         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5179                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5180
5181                 if (!tmp) {
5182                         return;
5183                 }
5184
5185                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
5186                 XMLNode &before = alist->get_state();
5187
5188                 tmp->audio_region()->set_fade_out_shape (shape);
5189
5190                 XMLNode &after = alist->get_state();
5191                 _session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5192         }
5193
5194         commit_reversible_command ();
5195 }
5196
5197 void
5198 Editor::set_fade_in_active (bool yn)
5199 {
5200         RegionSelection rs;
5201
5202         get_regions_for_action (rs);
5203
5204         if (rs.empty()) {
5205                 return;
5206         }
5207
5208         begin_reversible_command (_("set fade in active"));
5209
5210         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5211                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5212
5213                 if (!tmp) {
5214                         return;
5215                 }
5216
5217
5218                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5219
5220                 ar->clear_history ();
5221                 ar->set_fade_in_active (yn);
5222                 _session->add_command (new StatefulDiffCommand (ar));
5223         }
5224
5225         commit_reversible_command ();
5226 }
5227
5228 void
5229 Editor::set_fade_out_active (bool yn)
5230 {
5231         RegionSelection rs;
5232
5233         get_regions_for_action (rs);
5234
5235         if (rs.empty()) {
5236                 return;
5237         }
5238
5239         begin_reversible_command (_("set fade out active"));
5240
5241         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5242                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5243
5244                 if (!tmp) {
5245                         return;
5246                 }
5247
5248                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5249
5250                 ar->clear_history ();
5251                 ar->set_fade_out_active (yn);
5252                 _session->add_command(new StatefulDiffCommand (ar));
5253         }
5254
5255         commit_reversible_command ();
5256 }
5257
5258 void
5259 Editor::toggle_selected_region_fades (int dir)
5260 {
5261         RegionSelection rs;
5262         RegionSelection::iterator i;
5263         boost::shared_ptr<AudioRegion> ar;
5264         bool yn;
5265
5266         get_regions_for_action (rs);
5267
5268         if (rs.empty()) {
5269                 return;
5270         }
5271
5272         for (i = rs.begin(); i != rs.end(); ++i) {
5273                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5274                         if (dir == -1) {
5275                                 yn = ar->fade_out_active ();
5276                         } else {
5277                                 yn = ar->fade_in_active ();
5278                         }
5279                         break;
5280                 }
5281         }
5282
5283         if (i == rs.end()) {
5284                 return;
5285         }
5286
5287         /* XXX should this undo-able? */
5288
5289         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5290                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5291                         continue;
5292                 }
5293                 if (dir == 1 || dir == 0) {
5294                         ar->set_fade_in_active (!yn);
5295                 }
5296
5297                 if (dir == -1 || dir == 0) {
5298                         ar->set_fade_out_active (!yn);
5299                 }
5300         }
5301 }
5302
5303
5304 /** Update region fade visibility after its configuration has been changed */
5305 void
5306 Editor::update_region_fade_visibility ()
5307 {
5308         bool _fade_visibility = _session->config.get_show_region_fades ();
5309
5310         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5311                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5312                 if (v) {
5313                         if (_fade_visibility) {
5314                                 v->audio_view()->show_all_fades ();
5315                         } else {
5316                                 v->audio_view()->hide_all_fades ();
5317                         }
5318                 }
5319         }
5320 }
5321
5322 /** Update crossfade visibility after its configuration has been changed */
5323 void
5324 Editor::update_xfade_visibility ()
5325 {
5326         _xfade_visibility = _session->config.get_xfades_visible ();
5327
5328         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5329                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5330                 if (v) {
5331                         if (_xfade_visibility) {
5332                                 v->show_all_xfades ();
5333                         } else {
5334                                 v->hide_all_xfades ();
5335                         }
5336                 }
5337         }
5338 }
5339
5340 void
5341 Editor::set_edit_point ()
5342 {
5343         nframes64_t where;
5344         bool ignored;
5345
5346         if (!mouse_frame (where, ignored)) {
5347                 return;
5348         }
5349
5350         snap_to (where);
5351
5352         if (selection->markers.empty()) {
5353
5354                 mouse_add_new_marker (where);
5355
5356         } else {
5357                 bool ignored;
5358
5359                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5360
5361                 if (loc) {
5362                         loc->move_to (where);
5363                 }
5364         }
5365 }
5366
5367 void
5368 Editor::set_playhead_cursor ()
5369 {
5370         if (entered_marker) {
5371                 _session->request_locate (entered_marker->position(), _session->transport_rolling());
5372         } else {
5373                 nframes64_t where;
5374                 bool ignored;
5375
5376                 if (!mouse_frame (where, ignored)) {
5377                         return;
5378                 }
5379
5380                 snap_to (where);
5381
5382                 if (_session) {
5383                         _session->request_locate (where, _session->transport_rolling());
5384                 }
5385         }
5386 }
5387
5388 void
5389 Editor::split ()
5390 {
5391         RegionSelection rs;
5392
5393         get_regions_for_action (rs, true);
5394
5395         nframes64_t where = get_preferred_edit_position();
5396
5397         if (rs.empty()) {
5398                 return;
5399         }
5400
5401         split_regions_at (where, rs);
5402 }
5403
5404 void
5405 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
5406 {
5407         if (entered_track && mouse_mode == MouseObject) {
5408                 if (!selection->tracks.empty()) {
5409                         if (!selection->selected (entered_track)) {
5410                                 selection->add (entered_track);
5411                         }
5412                 } else {
5413                         /* there is no selection, but this operation requires/prefers selected objects */
5414
5415                         if (op_really_wants_one_track_if_none_are_selected) {
5416                                 selection->set (entered_track);
5417                         }
5418                 }
5419         }
5420 }
5421
5422 struct EditorOrderRouteSorter {
5423     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5424             /* use of ">" forces the correct sort order */
5425             return a->order_key ("editor") < b->order_key ("editor");
5426     }
5427 };
5428
5429 void
5430 Editor::select_next_route()
5431 {
5432         if (selection->tracks.empty()) {
5433                 selection->set (track_views.front());
5434                 return;
5435         }
5436
5437         TimeAxisView* current = selection->tracks.front();
5438
5439         RouteUI *rui;
5440         do {
5441                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5442                         if (*i == current) {
5443                                 ++i;
5444                                 if (i != track_views.end()) {
5445                                         current = (*i);
5446                                 } else {
5447                                         current = (*(track_views.begin()));
5448                                         //selection->set (*(track_views.begin()));
5449                                 }
5450                                 break;
5451                         }
5452                 }
5453                 rui = dynamic_cast<RouteUI *>(current);
5454         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5455
5456         selection->set(current);
5457
5458         ensure_track_visible(current);
5459 }
5460
5461 void
5462 Editor::select_prev_route()
5463 {
5464         if (selection->tracks.empty()) {
5465                 selection->set (track_views.front());
5466                 return;
5467         }
5468
5469         TimeAxisView* current = selection->tracks.front();
5470
5471         RouteUI *rui;
5472         do {
5473                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5474                         if (*i == current) {
5475                                 ++i;
5476                                 if (i != track_views.rend()) {
5477                                         current = (*i);
5478                                 } else {
5479                                         current = *(track_views.rbegin());
5480                                 }
5481                                 break;
5482                         }
5483                 }
5484                 rui = dynamic_cast<RouteUI *>(current);
5485         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5486
5487         selection->set (current);
5488
5489         ensure_track_visible(current);
5490 }
5491
5492 void
5493 Editor::ensure_track_visible(TimeAxisView *track)
5494 {
5495         if (track->hidden())
5496                 return;
5497
5498         double const current_view_min_y = vertical_adjustment.get_value();
5499         double const current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - canvas_timebars_vsize;
5500
5501         double const track_min_y = track->y_position ();
5502         double const track_max_y = track->y_position () + track->effective_height ();
5503
5504         if (track_min_y >= current_view_min_y &&
5505             track_max_y <= current_view_max_y) {
5506                 return;
5507         }
5508
5509         double new_value;
5510
5511         if (track_min_y < current_view_min_y) {
5512                 // Track is above the current view
5513                 new_value = track_min_y;
5514         } else {
5515                 // Track is below the current view
5516                 new_value = track->y_position () + track->effective_height() + canvas_timebars_vsize - vertical_adjustment.get_page_size();
5517         }
5518
5519         vertical_adjustment.set_value(new_value);
5520 }
5521
5522 void
5523 Editor::set_loop_from_selection (bool play)
5524 {
5525         if (_session == 0 || selection->time.empty()) {
5526                 return;
5527         }
5528
5529         nframes64_t start = selection->time[clicked_selection].start;
5530         nframes64_t end = selection->time[clicked_selection].end;
5531
5532         set_loop_range (start, end,  _("set loop range from selection"));
5533
5534         if (play) {
5535                 _session->request_play_loop (true);
5536                 _session->request_locate (start, true);
5537         }
5538 }
5539
5540 void
5541 Editor::set_loop_from_edit_range (bool play)
5542 {
5543         if (_session == 0) {
5544                 return;
5545         }
5546
5547         nframes64_t start;
5548         nframes64_t end;
5549
5550         if (!get_edit_op_range (start, end)) {
5551                 return;
5552         }
5553
5554         set_loop_range (start, end,  _("set loop range from edit range"));
5555
5556         if (play) {
5557                 _session->request_play_loop (true);
5558                 _session->request_locate (start, true);
5559         }
5560 }
5561
5562 void
5563 Editor::set_loop_from_region (bool play)
5564 {
5565         nframes64_t start = max_frames;
5566         nframes64_t end = 0;
5567
5568         RegionSelection rs;
5569
5570         get_regions_for_action (rs);
5571
5572         if (rs.empty()) {
5573                 return;
5574         }
5575
5576         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5577                 if ((*i)->region()->position() < start) {
5578                         start = (*i)->region()->position();
5579                 }
5580                 if ((*i)->region()->last_frame() + 1 > end) {
5581                         end = (*i)->region()->last_frame() + 1;
5582                 }
5583         }
5584
5585         set_loop_range (start, end, _("set loop range from region"));
5586
5587         if (play) {
5588                 _session->request_play_loop (true);
5589                 _session->request_locate (start, true);
5590         }
5591 }
5592
5593 void
5594 Editor::set_punch_from_selection ()
5595 {
5596         if (_session == 0 || selection->time.empty()) {
5597                 return;
5598         }
5599
5600         nframes64_t start = selection->time[clicked_selection].start;
5601         nframes64_t end = selection->time[clicked_selection].end;
5602
5603         set_punch_range (start, end,  _("set punch range from selection"));
5604 }
5605
5606 void
5607 Editor::set_punch_from_edit_range ()
5608 {
5609         if (_session == 0) {
5610                 return;
5611         }
5612
5613         nframes64_t start;
5614         nframes64_t end;
5615
5616         if (!get_edit_op_range (start, end)) {
5617                 return;
5618         }
5619
5620         set_punch_range (start, end,  _("set punch range from edit range"));
5621 }
5622
5623 void
5624 Editor::set_punch_from_region ()
5625 {
5626         nframes64_t start = max_frames;
5627         nframes64_t end = 0;
5628
5629         RegionSelection rs;
5630
5631         get_regions_for_action (rs);
5632
5633         if (rs.empty()) {
5634                 return;
5635         }
5636
5637         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5638                 if ((*i)->region()->position() < start) {
5639                         start = (*i)->region()->position();
5640                 }
5641                 if ((*i)->region()->last_frame() + 1 > end) {
5642                         end = (*i)->region()->last_frame() + 1;
5643                 }
5644         }
5645
5646         set_punch_range (start, end, _("set punch range from region"));
5647 }
5648
5649 void
5650 Editor::pitch_shift_regions ()
5651 {
5652         RegionSelection rs;
5653
5654         get_regions_for_action (rs);
5655
5656         if (rs.empty()) {
5657                 return;
5658         }
5659
5660         pitch_shift (rs, 1.2);
5661 }
5662
5663 void
5664 Editor::use_region_as_bar ()
5665 {
5666         if (!_session) {
5667                 return;
5668         }
5669
5670         RegionSelection rs;
5671
5672         get_regions_for_action (rs);
5673
5674         if (rs.empty()) {
5675                 return;
5676         }
5677
5678         RegionView* rv = rs.front();
5679
5680         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5681 }
5682
5683 void
5684 Editor::use_range_as_bar ()
5685 {
5686         nframes64_t start, end;
5687         if (get_edit_op_range (start, end)) {
5688                 define_one_bar (start, end);
5689         }
5690 }
5691
5692 void
5693 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5694 {
5695         nframes64_t length = end - start;
5696
5697         const Meter& m (_session->tempo_map().meter_at (start));
5698
5699         /* length = 1 bar */
5700
5701         /* now we want frames per beat.
5702            we have frames per bar, and beats per bar, so ...
5703         */
5704
5705         double frames_per_beat = length / m.beats_per_bar();
5706
5707         /* beats per minute = */
5708
5709         double beats_per_minute = (_session->frame_rate() * 60.0) / frames_per_beat;
5710
5711         /* now decide whether to:
5712
5713             (a) set global tempo
5714             (b) add a new tempo marker
5715
5716         */
5717
5718         const TempoSection& t (_session->tempo_map().tempo_section_at (start));
5719
5720         bool do_global = false;
5721
5722         if ((_session->tempo_map().n_tempos() == 1) && (_session->tempo_map().n_meters() == 1)) {
5723
5724                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5725                    at the start, or create a new marker
5726                 */
5727
5728                 vector<string> options;
5729                 options.push_back (_("Cancel"));
5730                 options.push_back (_("Add new marker"));
5731                 options.push_back (_("Set global tempo"));
5732
5733                 Choice c (
5734                         _("Define one bar"),
5735                         _("Do you want to set the global tempo or add a new tempo marker?"),
5736                         options
5737                         );
5738
5739                 c.set_default_response (2);
5740
5741                 switch (c.run()) {
5742                 case 0:
5743                         return;
5744
5745                 case 2:
5746                         do_global = true;
5747                         break;
5748
5749                 default:
5750                         do_global = false;
5751                 }
5752
5753         } else {
5754
5755                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5756                    if the marker is at the region starter, change it, otherwise add
5757                    a new tempo marker
5758                 */
5759         }
5760
5761         begin_reversible_command (_("set tempo from region"));
5762         XMLNode& before (_session->tempo_map().get_state());
5763
5764         if (do_global) {
5765                 _session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5766         } else if (t.frame() == start) {
5767                 _session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5768         } else {
5769                 _session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5770         }
5771
5772         XMLNode& after (_session->tempo_map().get_state());
5773
5774         _session->add_command (new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
5775         commit_reversible_command ();
5776 }
5777
5778 void
5779 Editor::split_region_at_transients ()
5780 {
5781         AnalysisFeatureList positions;
5782
5783         if (!_session) {
5784                 return;
5785         }
5786
5787         RegionSelection rs;
5788
5789         get_regions_for_action (rs);
5790
5791         if (rs.empty()) {
5792                 return;
5793         }
5794
5795         _session->begin_reversible_command (_("split regions"));
5796
5797         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5798
5799                 RegionSelection::iterator tmp;
5800
5801                 tmp = i;
5802                 ++tmp;
5803
5804                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5805
5806                 if (ar && (ar->get_transients (positions) == 0)) {
5807                         split_region_at_points ((*i)->region(), positions, true);
5808                         positions.clear ();
5809                 }
5810
5811                 i = tmp;
5812         }
5813
5814         _session->commit_reversible_command ();
5815
5816 }
5817
5818 void
5819 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5820 {
5821         bool use_rhythmic_rodent = false;
5822
5823         boost::shared_ptr<Playlist> pl = r->playlist();
5824
5825         if (!pl) {
5826                 return;
5827         }
5828
5829         if (positions.empty()) {
5830                 return;
5831         }
5832
5833
5834         if (positions.size() > 20) {
5835                 Glib::ustring msgstr = string_compose (_("You are about to split\n%1\ninto %2 pieces.\nThis could take a long time."), r->name(), positions.size() + 1);
5836                 MessageDialog msg (msgstr,
5837                                    false,
5838                                    Gtk::MESSAGE_INFO,
5839                                    Gtk::BUTTONS_OK_CANCEL);
5840
5841                 if (can_ferret) {
5842                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5843                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5844                 } else {
5845                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5846                 }
5847
5848                 msg.set_title (_("Excessive split?"));
5849                 msg.present ();
5850
5851                 int response = msg.run();
5852                 msg.hide ();
5853                 switch (response) {
5854                 case RESPONSE_OK:
5855                         break;
5856                 case RESPONSE_APPLY:
5857                         use_rhythmic_rodent = true;
5858                         break;
5859                 default:
5860                         return;
5861                 }
5862         }
5863
5864         if (use_rhythmic_rodent) {
5865                 show_rhythm_ferret ();
5866                 return;
5867         }
5868
5869         AnalysisFeatureList::const_iterator x;
5870
5871         nframes64_t pos = r->position();
5872
5873         pl->clear_history ();
5874
5875         x = positions.begin();
5876
5877         while (x != positions.end()) {
5878                 if ((*x) > pos) {
5879                         break;
5880                 }
5881                 ++x;
5882         }
5883
5884         if (x == positions.end()) {
5885                 return;
5886         }
5887
5888         pl->freeze ();
5889         pl->remove_region (r);
5890
5891         while (x != positions.end()) {
5892
5893                 /* file start = original start + how far we from the initial position ?
5894                  */
5895
5896                 nframes64_t file_start = r->start() + (pos - r->position());
5897
5898                 /* length = next position - current position
5899                  */
5900
5901                 nframes64_t len = (*x) - pos;
5902
5903                 /* XXX we do we really want to allow even single-sample regions?
5904                    shouldn't we have some kind of lower limit on region size?
5905                 */
5906
5907                 if (len <= 0) {
5908                         break;
5909                 }
5910
5911                 string new_name;
5912
5913                 if (RegionFactory::region_name (new_name, r->name())) {
5914                         break;
5915                 }
5916
5917                 /* do NOT announce new regions 1 by one, just wait till they are all done */
5918
5919                 PropertyList plist;
5920
5921                 plist.add (ARDOUR::Properties::start, file_start);
5922                 plist.add (ARDOUR::Properties::length, len);
5923                 plist.add (ARDOUR::Properties::name, new_name);
5924                 plist.add (ARDOUR::Properties::layer, 0);
5925
5926                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), plist, false);
5927                 pl->add_region (nr, pos);
5928
5929                 pos += len;
5930                 ++x;
5931
5932                 if (*x > r->last_frame()) {
5933
5934                         /* add final fragment */
5935
5936                         file_start = r->start() + (pos - r->position());
5937                         len = r->last_frame() - pos;
5938
5939                         PropertyList plist2;
5940
5941                         plist2.add (ARDOUR::Properties::start, file_start);
5942                         plist2.add (ARDOUR::Properties::length, len);
5943                         plist2.add (ARDOUR::Properties::name, new_name);
5944                         plist2.add (ARDOUR::Properties::layer, 0);
5945
5946                         nr = RegionFactory::create (r->sources(), plist2);
5947                         pl->add_region (nr, pos);
5948
5949                         break;
5950                 }
5951         }
5952
5953         pl->thaw ();
5954
5955         _session->add_command (new StatefulDiffCommand (pl));
5956 }
5957
5958 void
5959 Editor::tab_to_transient (bool forward)
5960 {
5961         AnalysisFeatureList positions;
5962
5963         if (!_session) {
5964                 return;
5965         }
5966
5967         nframes64_t pos = _session->audible_frame ();
5968
5969         if (!selection->tracks.empty()) {
5970
5971                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
5972
5973                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
5974
5975                         if (rtv) {
5976                                 boost::shared_ptr<Track> tr = rtv->track();
5977                                 if (tr) {
5978                                         boost::shared_ptr<Playlist> pl = tr->playlist ();
5979                                         if (pl) {
5980                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
5981
5982                                                 if (result >= 0) {
5983                                                         positions.push_back (result);
5984                                                 }
5985                                         }
5986                                 }
5987                         }
5988                 }
5989
5990         } else {
5991
5992                 RegionSelection rs;
5993
5994                 get_regions_for_action (rs);
5995
5996                 if (rs.empty()) {
5997                         return;
5998                 }
5999
6000                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6001                         (*r)->region()->get_transients (positions);
6002                 }
6003         }
6004
6005         TransientDetector::cleanup_transients (positions, _session->frame_rate(), 3.0);
6006
6007         if (forward) {
6008                 AnalysisFeatureList::iterator x;
6009
6010                 for (x = positions.begin(); x != positions.end(); ++x) {
6011                         if ((*x) > pos) {
6012                                 break;
6013                         }
6014                 }
6015
6016                 if (x != positions.end ()) {
6017                         _session->request_locate (*x);
6018                 }
6019
6020         } else {
6021                 AnalysisFeatureList::reverse_iterator x;
6022
6023                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
6024                         if ((*x) < pos) {
6025                                 break;
6026                         }
6027                 }
6028
6029                 if (x != positions.rend ()) {
6030                         _session->request_locate (*x);
6031                 }
6032         }
6033 }
6034 void
6035 Editor::playhead_forward_to_grid ()
6036 {
6037         if (!_session) return;
6038         nframes64_t pos = playhead_cursor->current_frame;
6039         if (pos < max_frames - 1) {
6040                 pos += 2;
6041                 snap_to_internal (pos, 1, false);
6042                 _session->request_locate (pos);
6043         }
6044 }
6045
6046
6047 void
6048 Editor::playhead_backward_to_grid ()
6049 {
6050         if (!_session) return;
6051         nframes64_t pos = playhead_cursor->current_frame;
6052         if (pos > 2) {
6053                 pos -= 2;
6054                 snap_to_internal (pos, -1, false);
6055                 _session->request_locate (pos);
6056         }
6057 }
6058
6059 void
6060 Editor::set_track_height (Height h)
6061 {
6062         TrackSelection& ts (selection->tracks);
6063
6064         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6065                 (*x)->set_height (h);
6066         }
6067 }
6068
6069 void
6070 Editor::toggle_tracks_active ()
6071 {
6072         TrackSelection& ts (selection->tracks);
6073         bool first = true;
6074         bool target = false;
6075
6076         if (ts.empty()) {
6077                 return;
6078         }
6079
6080         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6081                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
6082
6083                 if (rtv) {
6084                         if (first) {
6085                                 target = !rtv->_route->active();
6086                                 first = false;
6087                         }
6088                         rtv->_route->set_active (target);
6089                 }
6090         }
6091 }
6092
6093 void
6094 Editor::remove_tracks ()
6095 {
6096         TrackSelection& ts (selection->tracks);
6097
6098         if (ts.empty()) {
6099                 return;
6100         }
6101
6102         vector<string> choices;
6103         string prompt;
6104         int ntracks = 0;
6105         int nbusses = 0;
6106         const char* trackstr;
6107         const char* busstr;
6108         vector<boost::shared_ptr<Route> > routes;
6109
6110         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6111                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
6112                 if (rtv) {
6113                         if (rtv->is_track()) {
6114                                 ntracks++;
6115                         } else {
6116                                 nbusses++;
6117                         }
6118                 }
6119                 routes.push_back (rtv->_route);
6120         }
6121
6122         if (ntracks + nbusses == 0) {
6123                 return;
6124         }
6125
6126         if (ntracks > 1) {
6127                 trackstr = _("tracks");
6128         } else {
6129                 trackstr = _("track");
6130         }
6131
6132         if (nbusses > 1) {
6133                 busstr = _("busses");
6134         } else {
6135                 busstr = _("bus");
6136         }
6137
6138         if (ntracks) {
6139                 if (nbusses) {
6140                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
6141                                                     "(You may also lose the playlists associated with the %2)\n\n"
6142                                                     "This action cannot be undone!"),
6143                                                   ntracks, trackstr, nbusses, busstr);
6144                 } else {
6145                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
6146                                                     "(You may also lose the playlists associated with the %2)\n\n"
6147                                                     "This action cannot be undone!"),
6148                                                   ntracks, trackstr);
6149                 }
6150         } else if (nbusses) {
6151                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
6152                                           nbusses, busstr);
6153         }
6154
6155         choices.push_back (_("No, do nothing."));
6156         if (ntracks + nbusses > 1) {
6157                 choices.push_back (_("Yes, remove them."));
6158         } else {
6159                 choices.push_back (_("Yes, remove it."));
6160         }
6161
6162         string title;
6163         if (ntracks) {
6164                 title = string_compose (_("Remove %1"), trackstr);
6165         } else {
6166                 title = string_compose (_("Remove %1"), busstr);
6167         }
6168
6169         Choice prompter (title, prompt, choices);
6170
6171         if (prompter.run () != 1) {
6172                 return;
6173         }
6174
6175         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
6176                 _session->remove_route (*x);
6177         }
6178 }
6179
6180 void
6181 Editor::do_insert_time ()
6182 {
6183         if (selection->tracks.empty()) {
6184                 return;
6185         }
6186
6187         ArdourDialog d (*this, _("Insert Time"));
6188
6189         nframes64_t const pos = get_preferred_edit_position ();
6190
6191         d.get_vbox()->set_border_width (12);
6192         d.get_vbox()->set_spacing (4);
6193
6194         Table table (2, 2);
6195         table.set_spacings (4);
6196
6197         Label time_label (_("Time to insert:"));
6198         time_label.set_alignment (1, 0.5);
6199         table.attach (time_label, 0, 1, 0, 1, FILL | EXPAND);
6200         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, false, true, true);
6201         clock.set (0);
6202         clock.set_session (_session);
6203         clock.set_bbt_reference (pos);
6204         table.attach (clock, 1, 2, 0, 1);
6205
6206         Label intersected_label (_("Intersected regions should:"));
6207         intersected_label.set_alignment (1, 0.5);
6208         table.attach (intersected_label, 0, 1, 1, 2, FILL | EXPAND);
6209         ComboBoxText intersected_combo;
6210         intersected_combo.append_text (_("stay in position"));
6211         intersected_combo.append_text (_("move"));
6212         intersected_combo.append_text (_("be split"));
6213         intersected_combo.set_active (0);
6214         table.attach (intersected_combo, 1, 2, 1, 2);
6215
6216         d.get_vbox()->pack_start (table);
6217
6218         CheckButton move_glued (_("Move glued regions"));
6219         d.get_vbox()->pack_start (move_glued);
6220         CheckButton move_markers (_("Move markers"));
6221         d.get_vbox()->pack_start (move_markers);
6222         CheckButton move_tempos (_("Move tempo and meter changes"));
6223         d.get_vbox()->pack_start (move_tempos);
6224
6225         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
6226         d.add_button (_("Insert time"), Gtk::RESPONSE_OK);
6227         d.show_all ();
6228
6229         int response = d.run ();
6230
6231         if (response != RESPONSE_OK) {
6232                 return;
6233         }
6234
6235         nframes64_t distance = clock.current_duration (pos);
6236
6237         if (distance == 0) {
6238                 return;
6239         }
6240
6241         /* only setting this to keep GCC quiet */
6242         InsertTimeOption opt = LeaveIntersected;
6243
6244         switch (intersected_combo.get_active_row_number ()) {
6245         case 0:
6246                 opt = LeaveIntersected;
6247                 break;
6248         case 1:
6249                 opt = MoveIntersected;
6250                 break;
6251         case 2:
6252                 opt = SplitIntersected;
6253                 break;
6254         }
6255
6256         insert_time (pos, distance, opt, move_glued.get_active(), move_markers.get_active(), move_tempos.get_active());
6257 }
6258
6259 void
6260 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
6261                      bool ignore_music_glue, bool markers_too, bool tempo_too)
6262 {
6263         bool commit = false;
6264
6265         if (Config->get_edit_mode() == Lock) {
6266                 return;
6267         }
6268
6269         begin_reversible_command (_("insert time"));
6270
6271         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
6272                 /* regions */
6273                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
6274
6275                 if (pl) {
6276
6277                         pl->clear_history ();
6278                         pl->clear_owned_history ();
6279
6280                         if (opt == SplitIntersected) {
6281                                 pl->split (pos);
6282                         }
6283
6284                         pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6285
6286                         vector<StatefulDiffCommand*> cmds;
6287
6288                         pl->rdiff (cmds);
6289
6290                         cerr << "Shift generated " << cmds.size() << " sdc's\n";
6291
6292                         for (vector<StatefulDiffCommand*>::iterator c = cmds.begin(); c != cmds.end(); ++c) {
6293                                 _session->add_command (*c);
6294                         }
6295
6296                         _session->add_command (new StatefulDiffCommand (pl));
6297                         commit = true;
6298                 }
6299
6300                 /* automation */
6301                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6302                 if (rtav) {
6303                         rtav->route ()->shift (pos, frames);
6304                         commit = true;
6305                 }
6306         }
6307
6308         /* markers */
6309         if (markers_too) {
6310                 bool moved = false;
6311                 XMLNode& before (_session->locations()->get_state());
6312                 Locations::LocationList copy (_session->locations()->list());
6313
6314                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6315
6316                         Locations::LocationList::const_iterator tmp;
6317
6318                         if ((*i)->start() >= pos) {
6319                                 (*i)->set_start ((*i)->start() + frames);
6320                                 if (!(*i)->is_mark()) {
6321                                         (*i)->set_end ((*i)->end() + frames);
6322                                 }
6323                                 moved = true;
6324                         }
6325                 }
6326
6327                 if (moved) {
6328                         XMLNode& after (_session->locations()->get_state());
6329                         _session->add_command (new MementoCommand<Locations>(*_session->locations(), &before, &after));
6330                 }
6331         }
6332
6333         if (tempo_too) {
6334                 _session->tempo_map().insert_time (pos, frames);
6335         }
6336
6337         if (commit) {
6338                 commit_reversible_command ();
6339         }
6340 }
6341
6342 void
6343 Editor::fit_selected_tracks ()
6344 {
6345         fit_tracks (selection->tracks);
6346 }
6347
6348 void
6349 Editor::fit_tracks (TrackViewList & tracks)
6350 {
6351         if (tracks.empty()) {
6352                 return;
6353         }
6354
6355         uint32_t child_heights = 0;
6356
6357         for (TrackSelection::iterator t = tracks.begin(); t != tracks.end(); ++t) {
6358
6359                 if (!(*t)->marked_for_display()) {
6360                         continue;
6361                 }
6362
6363                 child_heights += (*t)->effective_height() - (*t)->current_height();
6364         }
6365
6366         uint32_t h = (uint32_t) floor ((_canvas_height - child_heights - canvas_timebars_vsize) / tracks.size());
6367         double first_y_pos = DBL_MAX;
6368
6369         if (h < TimeAxisView::preset_height (HeightSmall)) {
6370                 MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
6371                 /* too small to be displayed */
6372                 return;
6373         }
6374
6375         undo_visual_stack.push_back (current_visual_state());
6376
6377         /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
6378
6379         bool prev_was_selected = false;
6380         bool is_selected = tracks.contains (track_views.front());
6381         bool next_is_selected;
6382
6383         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
6384
6385                 TrackViewList::iterator next;
6386
6387                 next = t;
6388                 ++next;
6389
6390                 if (next != track_views.end()) {
6391                         next_is_selected = tracks.contains (*next);
6392                 } else {
6393                         next_is_selected = false;
6394                 }
6395
6396                 if (is_selected) {
6397                         (*t)->set_height (h);
6398                         first_y_pos = std::min ((*t)->y_position (), first_y_pos);
6399                 } else {
6400                         if (prev_was_selected && next_is_selected) {
6401                                 hide_track_in_display (*t);
6402                         }
6403                 }
6404
6405                 prev_was_selected = is_selected;
6406                 is_selected = next_is_selected;
6407         }
6408
6409         /*
6410            set the controls_layout height now, because waiting for its size
6411            request signal handler will cause the vertical adjustment setting to fail
6412         */
6413
6414         controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
6415         vertical_adjustment.set_value (first_y_pos);
6416
6417         redo_visual_stack.push_back (current_visual_state());
6418 }
6419
6420 void
6421 Editor::save_visual_state (uint32_t n)
6422 {
6423         while (visual_states.size() <= n) {
6424                 visual_states.push_back (0);
6425         }
6426
6427         delete visual_states[n];
6428
6429         visual_states[n] = current_visual_state (true);
6430         gdk_beep ();
6431 }
6432
6433 void
6434 Editor::goto_visual_state (uint32_t n)
6435 {
6436         if (visual_states.size() <= n) {
6437                 return;
6438         }
6439
6440         if (visual_states[n] == 0) {
6441                 return;
6442         }
6443
6444         use_visual_state (*visual_states[n]);
6445 }
6446
6447 void
6448 Editor::start_visual_state_op (uint32_t n)
6449 {
6450         if (visual_state_op_connection.empty()) {
6451                 visual_state_op_connection = Glib::signal_timeout().connect (sigc::bind (sigc::mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
6452         }
6453 }
6454
6455 void
6456 Editor::cancel_visual_state_op (uint32_t n)
6457 {
6458         if (!visual_state_op_connection.empty()) {
6459                 visual_state_op_connection.disconnect();
6460                 goto_visual_state (n);
6461         }  else {
6462                 //we land here if called from the menu OR if end_visual_state_op has been called
6463                 //so check if we are already in visual state n
6464                 // XXX not yet checking it at all, but redoing does not hurt
6465                 goto_visual_state (n);
6466         }
6467 }
6468
6469 bool
6470 Editor::end_visual_state_op (uint32_t n)
6471 {
6472         visual_state_op_connection.disconnect();
6473         save_visual_state (n);
6474
6475         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6476         char buf[32];
6477         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6478         pup->set_text (buf);
6479         pup->touch();
6480
6481         return false; // do not call again
6482 }
6483