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
  36 #include <gtkmm2ext/utils.h>
  37 #include <gtkmm2ext/choice.h>
  38 #include <gtkmm2ext/popup.h>
  39
  40 #include "ardour/audioengine.h"
  41 #include "ardour/session.h"
  42 #include "ardour/audioplaylist.h"
  43 #include "ardour/audioregion.h"
  44 #include "ardour/audio_diskstream.h"
  45 #include "ardour/utils.h"
  46 #include "ardour/location.h"
  47 #include "ardour/named_selection.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
  83 #include "i18n.h"
  84
  85 using namespace std;
  86 using namespace ARDOUR;
  87 using namespace PBD;
  88 using namespace sigc;
  89 using namespace Gtk;
  90 using namespace Gtkmm2ext;
  91 using namespace Editing;
  92
  93 /***********************************************************************
  94   Editor operations
  95  ***********************************************************************/
  96
  97 void
  98 Editor::undo (uint32_t n)
  99 {
 100         if (session) {
 101                 session->undo (n);
 102         }
 103 }
 104
 105 void
 106 Editor::redo (uint32_t n)
 107 {
 108         if (session) {
 109                 session->redo (n);
 110         }
 111 }
 112
 113 void
 114 Editor::split_regions_at (nframes64_t where, RegionSelection& regions)
 115 {
 116         list <boost::shared_ptr<Playlist > > used_playlists;
 117
 118         if (regions.empty()) {
 119                 return;
 120         }
 121
 122         begin_reversible_command (_("split"));
 123
 124         // if splitting a single region, and snap-to is using
 125         // region boundaries, don't pay attention to them
 126
 127         if (regions.size() == 1) {
 128                 switch (snap_type) {
 129                 case SnapToRegionStart:
 130                 case SnapToRegionSync:
 131                 case SnapToRegionEnd:
 132                         break;
 133                 default:
 134                         snap_to (where);
 135                 }
 136         } else {
 137                 snap_to (where);
 138         }
 139
 140         for (RegionSelection::iterator a = regions.begin(); a != regions.end(); ) {
 141
 142                 RegionSelection::iterator tmp;
 143
 144                 /* XXX this test needs to be more complicated, to make sure we really
 145                    have something to split.
 146                 */
 147
 148                 if (!(*a)->region()->covers (where)) {
 149                         ++a;
 150                         continue;
 151                 }
 152
 153                 tmp = a;
 154                 ++tmp;
 155
 156                 boost::shared_ptr<Playlist> pl = (*a)->region()->playlist();
 157
 158                 if (! pl->frozen()) {
 159                         /* we haven't seen this playlist before */
 160
 161                         /* remember used playlists so we can thaw them later */
 162                         used_playlists.push_back(pl);
 163                         pl->freeze();
 164                 }
 165
 166                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*a);
 167                 if (arv) {
 168                         _new_regionviews_show_envelope = arv->envelope_visible();
 169                 }
 170
 171                 if (pl) {
 172                         XMLNode &before = pl->get_state();
 173                         pl->split_region ((*a)->region(), where);
 174                         XMLNode &after = pl->get_state();
 175                         session->add_command(new MementoCommand<Playlist>(*pl, &before, &after));
 176                 }
 177
 178                 a = tmp;
 179         }
 180
 181         while (used_playlists.size() > 0) {
 182                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
 183                 (*i)->thaw();
 184                 used_playlists.pop_front();
 185         }
 186
 187         commit_reversible_command ();
 188         _new_regionviews_show_envelope = false;
 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         /* Try to leave the selection with the same route if possible */
 252
 253         if ((tv = selection->time.track) == 0) {
 254                 return;
 255         }
 256
 257         begin_reversible_command (_("extend selection"));
 258         selection->set (tv, start, region->position() + region->length());
 259         commit_reversible_command ();
 260 }
 261
 262 void
 263 Editor::extend_selection_to_start_of_region (bool previous)
 264 {
 265         TimeAxisView *tv;
 266         boost::shared_ptr<Region> region;
 267         nframes64_t end;
 268
 269         if ((region = select_region_for_operation (previous ? -1 : 0, &tv)) == 0) {
 270                 return;
 271         }
 272
 273         if (region && selection->time.start () == selection->time.end_frame ()) {
 274                 end = region->position() + region->length();
 275         } else {
 276                 end = selection->time.end_frame ();
 277         }
 278
 279         /* Try to leave the selection with the same route if possible */
 280
 281         if ((tv = selection->time.track) == 0) {
 282                 return;
 283         }
 284
 285         begin_reversible_command (_("extend selection"));
 286         selection->set (tv, region->position(), end);
 287         commit_reversible_command ();
 288 }
 289
 290 bool
 291 Editor::nudge_forward_release (GdkEventButton* ev)
 292 {
 293         if (ev->state & Keyboard::PrimaryModifier) {
 294                 nudge_forward (false, true);
 295         } else {
 296                 nudge_forward (false, false);
 297         }
 298         return false;
 299 }
 300
 301 bool
 302 Editor::nudge_backward_release (GdkEventButton* ev)
 303 {
 304         if (ev->state & Keyboard::PrimaryModifier) {
 305                 nudge_backward (false, true);
 306         } else {
 307                 nudge_backward (false, false);
 308         }
 309         return false;
 310 }
 311
 312
 313 void
 314 Editor::nudge_forward (bool next, bool force_playhead)
 315 {
 316         nframes64_t distance;
 317         nframes64_t next_distance;
 318         RegionSelection rs;
 319
 320         get_regions_for_action (rs);
 321
 322         if (!session) return;
 323
 324         if (!force_playhead && !rs.empty()) {
 325
 326                 begin_reversible_command (_("nudge regions forward"));
 327
 328                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 329                         boost::shared_ptr<Region> r ((*i)->region());
 330
 331                         distance = get_nudge_distance (r->position(), next_distance);
 332
 333                         if (next) {
 334                                 distance = next_distance;
 335                         }
 336
 337                         XMLNode &before = r->playlist()->get_state();
 338                         r->set_position (r->position() + distance, this);
 339                         XMLNode &after = r->playlist()->get_state();
 340                         session->add_command (new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 341                 }
 342
 343                 commit_reversible_command ();
 344
 345
 346         } else if (!force_playhead && !selection->markers.empty()) {
 347
 348                 bool is_start;
 349
 350                 begin_reversible_command (_("nudge location forward"));
 351
 352                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 353
 354                         Location* loc = find_location_from_marker ((*i), is_start);
 355
 356                         if (loc) {
 357
 358                                 XMLNode& before (loc->get_state());
 359
 360                                 if (is_start) {
 361                                         distance = get_nudge_distance (loc->start(), next_distance);
 362                                         if (next) {
 363                                                 distance = next_distance;
 364                                         }
 365                                         if (max_frames - distance > loc->start() + loc->length()) {
 366                                                 loc->set_start (loc->start() + distance);
 367                                         } else {
 368                                                 loc->set_start (max_frames - loc->length());
 369                                         }
 370                                 } else {
 371                                         distance = get_nudge_distance (loc->end(), next_distance);
 372                                         if (next) {
 373                                                 distance = next_distance;
 374                                         }
 375                                         if (max_frames - distance > loc->end()) {
 376                                                 loc->set_end (loc->end() + distance);
 377                                         } else {
 378                                                 loc->set_end (max_frames);
 379                                         }
 380                                 }
 381                                 XMLNode& after (loc->get_state());
 382                                 session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 383                         }
 384                 }
 385
 386                 commit_reversible_command ();
 387
 388         } else {
 389                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 390                 session->request_locate (playhead_cursor->current_frame + distance);
 391         }
 392 }
 393
 394 void
 395 Editor::nudge_backward (bool next, bool force_playhead)
 396 {
 397         nframes64_t distance;
 398         nframes64_t next_distance;
 399         RegionSelection rs;
 400
 401         get_regions_for_action (rs);
 402
 403         if (!session) return;
 404
 405         if (!force_playhead && !rs.empty()) {
 406
 407                 begin_reversible_command (_("nudge regions backward"));
 408
 409                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 410                         boost::shared_ptr<Region> r ((*i)->region());
 411
 412                         distance = get_nudge_distance (r->position(), next_distance);
 413
 414                         if (next) {
 415                                 distance = next_distance;
 416                         }
 417
 418                         XMLNode &before = r->playlist()->get_state();
 419
 420                         if (r->position() > distance) {
 421                                 r->set_position (r->position() - distance, this);
 422                         } else {
 423                                 r->set_position (0, this);
 424                         }
 425                         XMLNode &after = r->playlist()->get_state();
 426                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 427                 }
 428
 429                 commit_reversible_command ();
 430
 431         } else if (!force_playhead && !selection->markers.empty()) {
 432
 433                 bool is_start;
 434
 435                 begin_reversible_command (_("nudge location forward"));
 436
 437                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 438
 439                         Location* loc = find_location_from_marker ((*i), is_start);
 440
 441                         if (loc) {
 442
 443                                 XMLNode& before (loc->get_state());
 444
 445                                 if (is_start) {
 446                                         distance = get_nudge_distance (loc->start(), next_distance);
 447                                         if (next) {
 448                                                 distance = next_distance;
 449                                         }
 450                                         if (distance < loc->start()) {
 451                                                 loc->set_start (loc->start() - distance);
 452                                         } else {
 453                                                 loc->set_start (0);
 454                                         }
 455                                 } else {
 456                                         distance = get_nudge_distance (loc->end(), next_distance);
 457
 458                                         if (next) {
 459                                                 distance = next_distance;
 460                                         }
 461
 462                                         if (distance < loc->end() - loc->length()) {
 463                                                 loc->set_end (loc->end() - distance);
 464                                         } else {
 465                                                 loc->set_end (loc->length());
 466                                         }
 467                                 }
 468
 469                                 XMLNode& after (loc->get_state());
 470                                 session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 471                         }
 472                 }
 473
 474                 commit_reversible_command ();
 475
 476         } else {
 477
 478                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 479
 480                 if (playhead_cursor->current_frame > distance) {
 481                         session->request_locate (playhead_cursor->current_frame - distance);
 482                 } else {
 483                         session->goto_start();
 484                 }
 485         }
 486 }
 487
 488 void
 489 Editor::nudge_forward_capture_offset ()
 490 {
 491         nframes64_t distance;
 492         RegionSelection rs;
 493
 494         get_regions_for_action (rs);
 495
 496         if (!session) return;
 497
 498         if (!rs.empty()) {
 499
 500                 begin_reversible_command (_("nudge forward"));
 501
 502                 distance = session->worst_output_latency();
 503
 504                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 505                         boost::shared_ptr<Region> r ((*i)->region());
 506
 507                         XMLNode &before = r->playlist()->get_state();
 508                         r->set_position (r->position() + distance, this);
 509                         XMLNode &after = r->playlist()->get_state();
 510                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 511                 }
 512
 513                 commit_reversible_command ();
 514
 515         }
 516 }
 517
 518 void
 519 Editor::nudge_backward_capture_offset ()
 520 {
 521         nframes64_t distance;
 522         RegionSelection rs;
 523
 524         get_regions_for_action (rs);
 525
 526         if (!session) return;
 527
 528         if (!rs.empty()) {
 529
 530                 begin_reversible_command (_("nudge forward"));
 531
 532                 distance = session->worst_output_latency();
 533
 534                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 535                         boost::shared_ptr<Region> r ((*i)->region());
 536
 537                         XMLNode &before = r->playlist()->get_state();
 538
 539                         if (r->position() > distance) {
 540                                 r->set_position (r->position() - distance, this);
 541                         } else {
 542                                 r->set_position (0, this);
 543                         }
 544                         XMLNode &after = r->playlist()->get_state();
 545                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 546                 }
 547
 548                 commit_reversible_command ();
 549         }
 550 }
 551
 552 /* DISPLAY MOTION */
 553
 554 void
 555 Editor::move_to_start ()
 556 {
 557         session->goto_start ();
 558 }
 559
 560 void
 561 Editor::move_to_end ()
 562 {
 563
 564         session->request_locate (session->current_end_frame());
 565 }
 566
 567 void
 568 Editor::build_region_boundary_cache ()
 569 {
 570         nframes64_t pos = 0;
 571         vector<RegionPoint> interesting_points;
 572         boost::shared_ptr<Region> r;
 573         TrackViewList tracks;
 574         bool at_end = false;
 575
 576         region_boundary_cache.clear ();
 577
 578         if (session == 0) {
 579                 return;
 580         }
 581
 582         switch (snap_type) {
 583         case SnapToRegionStart:
 584                 interesting_points.push_back (Start);
 585                 break;
 586         case SnapToRegionEnd:
 587                 interesting_points.push_back (End);
 588                 break;
 589         case SnapToRegionSync:
 590                 interesting_points.push_back (SyncPoint);
 591                 break;
 592         case SnapToRegionBoundary:
 593                 interesting_points.push_back (Start);
 594                 interesting_points.push_back (End);
 595                 break;
 596         default:
 597                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), snap_type) << endmsg;
 598                 /*NOTREACHED*/
 599                 return;
 600         }
 601
 602         TimeAxisView *ontrack = 0;
 603         TrackViewList tlist;
 604
 605         if (!selection->tracks.empty()) {
 606                 tlist = selection->tracks;
 607         } else {
 608                 tlist = track_views;
 609         }
 610
 611         while (pos < session->current_end_frame() && !at_end) {
 612
 613                 nframes64_t rpos;
 614                 nframes64_t lpos = max_frames;
 615
 616                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 617
 618                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 619                                 if (*p == interesting_points.back()) {
 620                                         at_end = true;
 621                                 }
 622                                 /* move to next point type */
 623                                 continue;
 624                         }
 625
 626                         switch (*p) {
 627                         case Start:
 628                                 rpos = r->first_frame();
 629                                 break;
 630
 631                         case End:
 632                                 rpos = r->last_frame();
 633                                 break;
 634
 635                         case SyncPoint:
 636                                 rpos = r->sync_position ();
 637                                 //r->adjust_to_sync (r->first_frame());
 638                                 break;
 639
 640                         default:
 641                                 break;
 642                         }
 643
 644                         float speed = 1.0f;
 645                         RouteTimeAxisView *rtav;
 646
 647                         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 648                                 if (rtav->get_diskstream() != 0) {
 649                                         speed = rtav->get_diskstream()->speed();
 650                                 }
 651                         }
 652
 653                         rpos = track_frame_to_session_frame (rpos, speed);
 654
 655                         if (rpos < lpos) {
 656                                 lpos = rpos;
 657                         }
 658
 659                         /* prevent duplicates, but we don't use set<> because we want to be able
 660                            to sort later.
 661                         */
 662
 663                         vector<nframes64_t>::iterator ri;
 664
 665                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 666                                 if (*ri == rpos) {
 667                                         break;
 668                                 }
 669                         }
 670
 671                         if (ri == region_boundary_cache.end()) {
 672                                 region_boundary_cache.push_back (rpos);
 673                         }
 674                 }
 675
 676                 pos = lpos + 1;
 677         }
 678
 679         /* finally sort to be sure that the order is correct */
 680
 681         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 682 }
 683
 684 boost::shared_ptr<Region>
 685 Editor::find_next_region (nframes64_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 686 {
 687         TrackViewList::iterator i;
 688         nframes64_t closest = max_frames;
 689         boost::shared_ptr<Region> ret;
 690         nframes64_t rpos = 0;
 691
 692         float track_speed;
 693         nframes64_t track_frame;
 694         RouteTimeAxisView *rtav;
 695
 696         for (i = tracks.begin(); i != tracks.end(); ++i) {
 697
 698                 nframes64_t distance;
 699                 boost::shared_ptr<Region> r;
 700
 701                 track_speed = 1.0f;
 702                 if ( (rtav = dynamic_cast<RouteTimeAxisView*>(*i)) != 0 ) {
 703                         if (rtav->get_diskstream()!=0)
 704                                 track_speed = rtav->get_diskstream()->speed();
 705                 }
 706
 707                 track_frame = session_frame_to_track_frame(frame, track_speed);
 708
 709                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 710                         continue;
 711                 }
 712
 713                 switch (point) {
 714                 case Start:
 715                         rpos = r->first_frame ();
 716                         break;
 717
 718                 case End:
 719                         rpos = r->last_frame ();
 720                         break;
 721
 722                 case SyncPoint:
 723                         rpos = r->sync_position ();
 724                         // r->adjust_to_sync (r->first_frame());
 725                         break;
 726                 }
 727
 728                 // rpos is a "track frame", converting it to "session frame"
 729                 rpos = track_frame_to_session_frame(rpos, track_speed);
 730
 731                 if (rpos > frame) {
 732                         distance = rpos - frame;
 733                 } else {
 734                         distance = frame - rpos;
 735                 }
 736
 737                 if (distance < closest) {
 738                         closest = distance;
 739                         if (ontrack != 0)
 740                                 *ontrack = (*i);
 741                         ret = r;
 742                 }
 743         }
 744
 745         return ret;
 746 }
 747
 748 nframes64_t
 749 Editor::find_next_region_boundary (nframes64_t pos, int32_t dir, const TrackViewList& tracks)
 750 {
 751         nframes64_t distance = max_frames;
 752         nframes64_t current_nearest = -1;
 753
 754
 755         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 756                 nframes64_t contender;
 757                 nframes64_t d;
 758
 759                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 760
 761                 if (!rtv) {
 762                         continue;
 763                 }
 764
 765                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 766                         continue;
 767                 }
 768
 769                 d = ::llabs (pos - contender);
 770
 771                 if (d < distance) {
 772                         current_nearest = contender;
 773                         distance = d;
 774                 }
 775         }
 776
 777         return current_nearest;
 778 }
 779
 780 nframes64_t
 781 Editor::get_region_boundary (nframes64_t pos, int32_t dir, bool with_selection, bool only_onscreen)
 782 {
 783         nframes64_t target;
 784         TrackViewList tvl;
 785
 786         if (with_selection && Config->get_region_boundaries_from_selected_tracks()) {
 787
 788                 if (!selection->tracks.empty()) {
 789
 790                         target = find_next_region_boundary (pos, dir, selection->tracks);
 791
 792                 } else {
 793
 794                         if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 795                                 get_onscreen_tracks (tvl);
 796                                 target = find_next_region_boundary (pos, dir, tvl);
 797                         } else {
 798                                 target = find_next_region_boundary (pos, dir, track_views);
 799                         }
 800                 }
 801
 802         } else {
 803
 804                 if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 805                         get_onscreen_tracks (tvl);
 806                         target = find_next_region_boundary (pos, dir, tvl);
 807                 } else {
 808                         target = find_next_region_boundary (pos, dir, track_views);
 809                 }
 810         }
 811
 812         return target;
 813 }
 814
 815 void
 816 Editor::cursor_to_region_boundary (bool with_selection, int32_t dir)
 817 {
 818         nframes64_t pos = playhead_cursor->current_frame;
 819         nframes64_t target;
 820
 821         if (!session) {
 822                 return;
 823         }
 824
 825         // so we don't find the current region again..
 826         if (dir > 0 || pos > 0) {
 827                 pos += dir;
 828         }
 829
 830         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
 831                 return;
 832         }
 833
 834
 835         session->request_locate (target);
 836 }
 837
 838 void
 839 Editor::cursor_to_next_region_boundary (bool with_selection)
 840 {
 841         cursor_to_region_boundary (with_selection, 1);
 842 }
 843
 844 void
 845 Editor::cursor_to_previous_region_boundary (bool with_selection)
 846 {
 847         cursor_to_region_boundary (with_selection, -1);
 848 }
 849
 850 void
 851 Editor::cursor_to_region_point (EditorCursor* cursor, RegionPoint point, int32_t dir)
 852 {
 853         boost::shared_ptr<Region> r;
 854         nframes64_t pos = cursor->current_frame;
 855
 856         if (!session) {
 857                 return;
 858         }
 859
 860         TimeAxisView *ontrack = 0;
 861
 862         // so we don't find the current region again..
 863         if (dir>0 || pos>0)
 864                 pos+=dir;
 865
 866         if (!selection->tracks.empty()) {
 867
 868                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 869
 870         } else if (clicked_axisview) {
 871
 872                 TrackViewList t;
 873                 t.push_back (clicked_axisview);
 874
 875                 r = find_next_region (pos, point, dir, t, &ontrack);
 876
 877         } else {
 878
 879                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 880         }
 881
 882         if (r == 0) {
 883                 return;
 884         }
 885
 886         switch (point){
 887         case Start:
 888                 pos = r->first_frame ();
 889                 break;
 890
 891         case End:
 892                 pos = r->last_frame ();
 893                 break;
 894
 895         case SyncPoint:
 896                 pos = r->sync_position ();
 897                 // r->adjust_to_sync (r->first_frame());
 898                 break;
 899         }
 900
 901         float speed = 1.0f;
 902         RouteTimeAxisView *rtav;
 903
 904         if ( ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 905                 if (rtav->get_diskstream() != 0) {
 906                         speed = rtav->get_diskstream()->speed();
 907                 }
 908         }
 909
 910         pos = track_frame_to_session_frame(pos, speed);
 911
 912         if (cursor == playhead_cursor) {
 913                 session->request_locate (pos);
 914         } else {
 915                 cursor->set_position (pos);
 916         }
 917 }
 918
 919 void
 920 Editor::cursor_to_next_region_point (EditorCursor* cursor, RegionPoint point)
 921 {
 922         cursor_to_region_point (cursor, point, 1);
 923 }
 924
 925 void
 926 Editor::cursor_to_previous_region_point (EditorCursor* cursor, RegionPoint point)
 927 {
 928         cursor_to_region_point (cursor, point, -1);
 929 }
 930
 931 void
 932 Editor::cursor_to_selection_start (EditorCursor *cursor)
 933 {
 934         nframes64_t pos = 0;
 935         RegionSelection rs;
 936
 937         get_regions_for_action (rs);
 938
 939         switch (mouse_mode) {
 940         case MouseObject:
 941                 if (!rs.empty()) {
 942                         pos = rs.start();
 943                 }
 944                 break;
 945
 946         case MouseRange:
 947                 if (!selection->time.empty()) {
 948                         pos = selection->time.start ();
 949                 }
 950                 break;
 951
 952         default:
 953                 return;
 954         }
 955
 956         if (cursor == playhead_cursor) {
 957                 session->request_locate (pos);
 958         } else {
 959                 cursor->set_position (pos);
 960         }
 961 }
 962
 963 void
 964 Editor::cursor_to_selection_end (EditorCursor *cursor)
 965 {
 966         nframes64_t pos = 0;
 967         RegionSelection rs;
 968
 969         get_regions_for_action (rs);
 970
 971         switch (mouse_mode) {
 972         case MouseObject:
 973                 if (!rs.empty()) {
 974                         pos = rs.end_frame();
 975                 }
 976                 break;
 977
 978         case MouseRange:
 979                 if (!selection->time.empty()) {
 980                         pos = selection->time.end_frame ();
 981                 }
 982                 break;
 983
 984         default:
 985                 return;
 986         }
 987
 988         if (cursor == playhead_cursor) {
 989                 session->request_locate (pos);
 990         } else {
 991                 cursor->set_position (pos);
 992         }
 993 }
 994
 995 void
 996 Editor::selected_marker_to_region_boundary (bool with_selection, int32_t dir)
 997 {
 998         nframes64_t target;
 999         Location* loc;
1000         bool ignored;
1001
1002         if (!session) {
1003                 return;
1004         }
1005
1006         if (selection->markers.empty()) {
1007                 nframes64_t mouse;
1008                 bool ignored;
1009
1010                 if (!mouse_frame (mouse, ignored)) {
1011                         return;
1012                 }
1013
1014                 add_location_mark (mouse);
1015         }
1016
1017         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1018                 return;
1019         }
1020
1021         nframes64_t pos = loc->start();
1022
1023         // so we don't find the current region again..
1024         if (dir > 0 || pos > 0) {
1025                 pos += dir;
1026         }
1027
1028         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
1029                 return;
1030         }
1031
1032         loc->move_to (target);
1033 }
1034
1035 void
1036 Editor::selected_marker_to_next_region_boundary (bool with_selection)
1037 {
1038         selected_marker_to_region_boundary (with_selection, 1);
1039 }
1040
1041 void
1042 Editor::selected_marker_to_previous_region_boundary (bool with_selection)
1043 {
1044         selected_marker_to_region_boundary (with_selection, -1);
1045 }
1046
1047 void
1048 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
1049 {
1050         boost::shared_ptr<Region> r;
1051         nframes64_t pos;
1052         Location* loc;
1053         bool ignored;
1054
1055         if (!session || selection->markers.empty()) {
1056                 return;
1057         }
1058
1059         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1060                 return;
1061         }
1062
1063         TimeAxisView *ontrack = 0;
1064
1065         pos = loc->start();
1066
1067         // so we don't find the current region again..
1068         if (dir>0 || pos>0)
1069                 pos+=dir;
1070
1071         if (!selection->tracks.empty()) {
1072
1073                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1074
1075         } else {
1076
1077                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1078         }
1079
1080         if (r == 0) {
1081                 return;
1082         }
1083
1084         switch (point){
1085         case Start:
1086                 pos = r->first_frame ();
1087                 break;
1088
1089         case End:
1090                 pos = r->last_frame ();
1091                 break;
1092
1093         case SyncPoint:
1094                 pos = r->adjust_to_sync (r->first_frame());
1095                 break;
1096         }
1097
1098         float speed = 1.0f;
1099         RouteTimeAxisView *rtav;
1100
1101         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0) {
1102                 if (rtav->get_diskstream() != 0) {
1103                         speed = rtav->get_diskstream()->speed();
1104                 }
1105         }
1106
1107         pos = track_frame_to_session_frame(pos, speed);
1108
1109         loc->move_to (pos);
1110 }
1111
1112 void
1113 Editor::selected_marker_to_next_region_point (RegionPoint point)
1114 {
1115         selected_marker_to_region_point (point, 1);
1116 }
1117
1118 void
1119 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1120 {
1121         selected_marker_to_region_point (point, -1);
1122 }
1123
1124 void
1125 Editor::selected_marker_to_selection_start ()
1126 {
1127         nframes64_t pos = 0;
1128         Location* loc;
1129         bool ignored;
1130
1131         if (!session || selection->markers.empty()) {
1132                 return;
1133         }
1134
1135         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1136                 return;
1137         }
1138
1139         RegionSelection rs;
1140
1141         get_regions_for_action (rs);
1142
1143         switch (mouse_mode) {
1144         case MouseObject:
1145                 if (!rs.empty()) {
1146                         pos = rs.start();
1147                 }
1148                 break;
1149
1150         case MouseRange:
1151                 if (!selection->time.empty()) {
1152                         pos = selection->time.start ();
1153                 }
1154                 break;
1155
1156         default:
1157                 return;
1158         }
1159
1160         loc->move_to (pos);
1161 }
1162
1163 void
1164 Editor::selected_marker_to_selection_end ()
1165 {
1166         nframes64_t pos = 0;
1167         Location* loc;
1168         bool ignored;
1169
1170         if (!session || selection->markers.empty()) {
1171                 return;
1172         }
1173
1174         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1175                 return;
1176         }
1177
1178         RegionSelection rs;
1179
1180         get_regions_for_action (rs);
1181
1182         switch (mouse_mode) {
1183         case MouseObject:
1184                 if (!rs.empty()) {
1185                         pos = rs.end_frame();
1186                 }
1187                 break;
1188
1189         case MouseRange:
1190                 if (!selection->time.empty()) {
1191                         pos = selection->time.end_frame ();
1192                 }
1193                 break;
1194
1195         default:
1196                 return;
1197         }
1198
1199         loc->move_to (pos);
1200 }
1201
1202 void
1203 Editor::scroll_playhead (bool forward)
1204 {
1205         nframes64_t pos = playhead_cursor->current_frame;
1206         nframes64_t delta = (nframes64_t) floor (current_page_frames() / 0.8);
1207
1208         if (forward) {
1209                 if (pos == max_frames) {
1210                         return;
1211                 }
1212
1213                 if (pos < max_frames - delta) {
1214                         pos += delta ;
1215                 } else {
1216                         pos = max_frames;
1217                 }
1218
1219         } else {
1220
1221                 if (pos == 0) {
1222                         return;
1223                 }
1224
1225                 if (pos > delta) {
1226                         pos -= delta;
1227                 } else {
1228                         pos = 0;
1229                 }
1230         }
1231
1232         session->request_locate (pos);
1233 }
1234
1235 void
1236 Editor::playhead_backward ()
1237 {
1238         nframes64_t pos;
1239         nframes64_t cnt;
1240         float prefix;
1241         bool was_floating;
1242
1243         if (get_prefix (prefix, was_floating)) {
1244                 cnt = 1;
1245         } else {
1246                 if (was_floating) {
1247                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1248                 } else {
1249                         cnt = (nframes64_t) prefix;
1250                 }
1251         }
1252
1253         pos = playhead_cursor->current_frame;
1254
1255         if ((nframes64_t) pos < cnt) {
1256                 pos = 0;
1257         } else {
1258                 pos -= cnt;
1259         }
1260
1261         /* XXX this is completely insane. with the current buffering
1262            design, we'll force a complete track buffer flush and
1263            reload, just to move 1 sample !!!
1264         */
1265
1266         session->request_locate (pos);
1267 }
1268
1269 void
1270 Editor::playhead_forward ()
1271 {
1272         nframes64_t pos;
1273         nframes64_t cnt;
1274         bool was_floating;
1275         float prefix;
1276
1277         if (get_prefix (prefix, was_floating)) {
1278                 cnt = 1;
1279         } else {
1280                 if (was_floating) {
1281                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1282                 } else {
1283                         cnt = (nframes64_t) floor (prefix);
1284                 }
1285         }
1286
1287         pos = playhead_cursor->current_frame;
1288
1289         /* XXX this is completely insane. with the current buffering
1290            design, we'll force a complete track buffer flush and
1291            reload, just to move 1 sample !!!
1292         */
1293
1294         session->request_locate (pos+cnt);
1295 }
1296
1297 void
1298 Editor::cursor_align (bool playhead_to_edit)
1299 {
1300         if (!session) {
1301                 return;
1302         }
1303
1304         if (playhead_to_edit) {
1305
1306                 if (selection->markers.empty()) {
1307                         return;
1308                 }
1309
1310                 session->request_locate (selection->markers.front()->position(), session->transport_rolling());
1311
1312         } else {
1313                 /* move selected markers to playhead */
1314
1315                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1316                         bool ignored;
1317
1318                         Location* loc = find_location_from_marker (*i, ignored);
1319
1320                         if (loc->is_mark()) {
1321                                 loc->set_start (playhead_cursor->current_frame);
1322                         } else {
1323                                 loc->set (playhead_cursor->current_frame,
1324                                           playhead_cursor->current_frame + loc->length());
1325                         }
1326                 }
1327         }
1328 }
1329
1330 void
1331 Editor::edit_cursor_backward ()
1332 {
1333         nframes64_t pos;
1334         nframes64_t cnt;
1335         float prefix;
1336         bool was_floating;
1337
1338         if (get_prefix (prefix, was_floating)) {
1339                 cnt = 1;
1340         } else {
1341                 if (was_floating) {
1342                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1343                 } else {
1344                         cnt = (nframes64_t) prefix;
1345                 }
1346         }
1347
1348         if ((pos = get_preferred_edit_position()) < 0) {
1349                 return;
1350         }
1351
1352         if (pos < cnt) {
1353                 pos = 0;
1354         } else {
1355                 pos -= cnt;
1356         }
1357
1358         // EDIT CURSOR edit_cursor->set_position (pos);
1359 }
1360
1361 void
1362 Editor::edit_cursor_forward ()
1363 {
1364         //nframes64_t pos;
1365         nframes64_t cnt;
1366         bool was_floating;
1367         float prefix;
1368
1369         if (get_prefix (prefix, was_floating)) {
1370                 cnt = 1;
1371         } else {
1372                 if (was_floating) {
1373                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1374                 } else {
1375                         cnt = (nframes64_t) floor (prefix);
1376                 }
1377         }
1378
1379         // pos = edit_cursor->current_frame;
1380         // EDIT CURSOR edit_cursor->set_position (pos+cnt);
1381 }
1382
1383 void
1384 Editor::goto_frame ()
1385 {
1386         float prefix;
1387         bool was_floating;
1388         nframes64_t frame;
1389
1390         if (get_prefix (prefix, was_floating)) {
1391                 return;
1392         }
1393
1394         if (was_floating) {
1395                 frame = (nframes64_t) floor (prefix * session->frame_rate());
1396         } else {
1397                 frame = (nframes64_t) floor (prefix);
1398         }
1399
1400         session->request_locate (frame);
1401 }
1402
1403 void
1404 Editor::scroll_backward (float pages)
1405 {
1406         nframes64_t frame;
1407         nframes64_t one_page = (nframes64_t) rint (_canvas_width * frames_per_unit);
1408         bool was_floating;
1409         float prefix;
1410         nframes64_t cnt;
1411
1412         if (get_prefix (prefix, was_floating)) {
1413                 cnt = (nframes64_t) floor (pages * one_page);
1414         } else {
1415                 if (was_floating) {
1416                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1417                 } else {
1418                         cnt = (nframes64_t) floor (prefix * one_page);
1419                 }
1420         }
1421
1422         if (leftmost_frame < cnt) {
1423                 frame = 0;
1424         } else {
1425                 frame = leftmost_frame - cnt;
1426         }
1427
1428         reset_x_origin (frame);
1429 }
1430
1431 void
1432 Editor::scroll_forward (float pages)
1433 {
1434         nframes64_t frame;
1435         nframes64_t one_page = (nframes64_t) rint (_canvas_width * frames_per_unit);
1436         bool was_floating;
1437         float prefix;
1438         nframes64_t cnt;
1439
1440         if (get_prefix (prefix, was_floating)) {
1441                 cnt = (nframes64_t) floor (pages * one_page);
1442         } else {
1443                 if (was_floating) {
1444                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1445                 } else {
1446                         cnt = (nframes64_t) floor (prefix * one_page);
1447                 }
1448         }
1449
1450         if (max_frames - cnt < leftmost_frame) {
1451                 frame = max_frames - cnt;
1452         } else {
1453                 frame = leftmost_frame + cnt;
1454         }
1455
1456         reset_x_origin (frame);
1457 }
1458
1459 void
1460 Editor::scroll_tracks_down ()
1461 {
1462         float prefix;
1463         bool was_floating;
1464         int cnt;
1465
1466         if (get_prefix (prefix, was_floating)) {
1467                 cnt = 1;
1468         } else {
1469                 cnt = (int) floor (prefix);
1470         }
1471
1472         double vert_value = vertical_adjustment.get_value() + (cnt *
1473                 vertical_adjustment.get_page_size());
1474         if (vert_value > vertical_adjustment.get_upper() - _canvas_height) {
1475                 vert_value = vertical_adjustment.get_upper() - _canvas_height;
1476         }
1477         vertical_adjustment.set_value (vert_value);
1478 }
1479
1480 void
1481 Editor::scroll_tracks_up ()
1482 {
1483         float prefix;
1484         bool was_floating;
1485         int cnt;
1486
1487         if (get_prefix (prefix, was_floating)) {
1488                 cnt = 1;
1489         } else {
1490                 cnt = (int) floor (prefix);
1491         }
1492
1493         vertical_adjustment.set_value (vertical_adjustment.get_value() - (cnt * vertical_adjustment.get_page_size()));
1494 }
1495
1496 void
1497 Editor::scroll_tracks_down_line ()
1498 {
1499
1500         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1501         double vert_value = adj->get_value() + 60;
1502
1503         if (vert_value>adj->get_upper() - _canvas_height) {
1504                 vert_value = adj->get_upper() - _canvas_height;
1505         }
1506         adj->set_value (vert_value);
1507 }
1508
1509 void
1510 Editor::scroll_tracks_up_line ()
1511 {
1512         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1513         adj->set_value (adj->get_value() - 60);
1514 }
1515
1516 /* ZOOM */
1517
1518 void
1519 Editor::tav_zoom_step (bool coarser)
1520 {
1521         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1522
1523         _routes->suspend_redisplay ();
1524
1525         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1526                 TimeAxisView *tv = (static_cast<TimeAxisView*>(*i));
1527                         tv->step_height (coarser);
1528         }
1529
1530         _routes->resume_redisplay ();
1531 }
1532
1533 void
1534 Editor::temporal_zoom_step (bool coarser)
1535 {
1536         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1537
1538         double nfpu;
1539
1540         nfpu = frames_per_unit;
1541
1542         if (coarser) {
1543                 nfpu *= 1.61803399;
1544         } else {
1545                 nfpu = max(1.0,(nfpu/1.61803399));
1546         }
1547
1548         temporal_zoom (nfpu);
1549 }
1550
1551 void
1552 Editor::temporal_zoom (gdouble fpu)
1553 {
1554         if (!session) return;
1555
1556         nframes64_t current_page = current_page_frames();
1557         nframes64_t current_leftmost = leftmost_frame;
1558         nframes64_t current_rightmost;
1559         nframes64_t current_center;
1560         nframes64_t new_page_size;
1561         nframes64_t half_page_size;
1562         nframes64_t leftmost_after_zoom = 0;
1563         nframes64_t where;
1564         bool in_track_canvas;
1565         double nfpu;
1566         double l;
1567
1568         /* XXX this limit is also in ::set_frames_per_unit() */
1569
1570         if (frames_per_unit <= 2.0 && fpu <= frames_per_unit) {
1571                 return;
1572         }
1573
1574         nfpu = fpu;
1575
1576         new_page_size = (nframes64_t) floor (_canvas_width * nfpu);
1577         half_page_size = new_page_size / 2;
1578
1579         switch (zoom_focus) {
1580         case ZoomFocusLeft:
1581                 leftmost_after_zoom = current_leftmost;
1582                 break;
1583
1584         case ZoomFocusRight:
1585                 current_rightmost = leftmost_frame + current_page;
1586                 if (current_rightmost < new_page_size) {
1587                         leftmost_after_zoom = 0;
1588                 } else {
1589                         leftmost_after_zoom = current_rightmost - new_page_size;
1590                 }
1591                 break;
1592
1593         case ZoomFocusCenter:
1594                 current_center = current_leftmost + (current_page/2);
1595                 if (current_center < half_page_size) {
1596                         leftmost_after_zoom = 0;
1597                 } else {
1598                         leftmost_after_zoom = current_center - half_page_size;
1599                 }
1600                 break;
1601
1602         case ZoomFocusPlayhead:
1603                 /* try to keep the playhead in the same place */
1604
1605                 where = playhead_cursor->current_frame;
1606
1607                 l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1608
1609                 if (l < 0) {
1610                         leftmost_after_zoom = 0;
1611                 } else if (l > max_frames) {
1612                         leftmost_after_zoom = max_frames - new_page_size;
1613                 } else {
1614                         leftmost_after_zoom = (nframes64_t) l;
1615                 }
1616                 break;
1617
1618         case ZoomFocusMouse:
1619                 /* try to keep the mouse over the same point in the display */
1620
1621                 if (!mouse_frame (where, in_track_canvas)) {
1622                         /* use playhead instead */
1623                         where = playhead_cursor->current_frame;
1624
1625                         if (where < half_page_size) {
1626                                 leftmost_after_zoom = 0;
1627                         } else {
1628                                 leftmost_after_zoom = where - half_page_size;
1629                         }
1630
1631                 } else {
1632
1633                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1634
1635                         if (l < 0) {
1636                                 leftmost_after_zoom = 0;
1637                         } else if (l > max_frames) {
1638                                 leftmost_after_zoom = max_frames - new_page_size;
1639                         } else {
1640                                 leftmost_after_zoom = (nframes64_t) l;
1641                         }
1642                 }
1643
1644                 break;
1645
1646         case ZoomFocusEdit:
1647                 /* try to keep the edit point in the same place */
1648                 where = get_preferred_edit_position ();
1649
1650                 if (where > 0) {
1651
1652                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1653
1654                         if (l < 0) {
1655                                 leftmost_after_zoom = 0;
1656                         } else if (l > max_frames) {
1657                                 leftmost_after_zoom = max_frames - new_page_size;
1658                         } else {
1659                                 leftmost_after_zoom = (nframes64_t) l;
1660                         }
1661
1662                 } else {
1663                         /* edit point not defined */
1664                         return;
1665                 }
1666                 break;
1667
1668         }
1669
1670         // leftmost_after_zoom = min (leftmost_after_zoom, session->current_end_frame());
1671
1672         reposition_and_zoom (leftmost_after_zoom, nfpu);
1673 }
1674
1675 void
1676 Editor::temporal_zoom_region (bool both_axes)
1677 {
1678
1679         nframes64_t start = max_frames;
1680         nframes64_t end = 0;
1681         RegionSelection rs;
1682         set<TimeAxisView*> tracks;
1683
1684         get_regions_for_action (rs);
1685
1686         if (rs.empty()) {
1687                 return;
1688         }
1689
1690         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
1691
1692                 if ((*i)->region()->position() < start) {
1693                         start = (*i)->region()->position();
1694                 }
1695
1696                 if ((*i)->region()->last_frame() + 1 > end) {
1697                         end = (*i)->region()->last_frame() + 1;
1698                 }
1699
1700                 tracks.insert (&((*i)->get_time_axis_view()));
1701         }
1702
1703         /* now comes an "interesting" hack ... make sure we leave a little space
1704            at each end of the editor so that the zoom doesn't fit the region
1705            precisely to the screen.
1706         */
1707
1708         GdkScreen* screen = gdk_screen_get_default ();
1709         gint pixwidth = gdk_screen_get_width (screen);
1710         gint mmwidth = gdk_screen_get_width_mm (screen);
1711         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1712         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1713
1714         if ((start == 0 && end == 0) || end < start) {
1715                 return;
1716         }
1717
1718         nframes64_t range = end - start;
1719         double new_fpu = (double)range / (double)_canvas_width;
1720         nframes64_t extra_samples = (nframes64_t) floor (one_centimeter_in_pixels * new_fpu);
1721
1722         if (start > extra_samples) {
1723                 start -= extra_samples;
1724         } else {
1725                 start = 0;
1726         }
1727
1728         if (max_frames - extra_samples > end) {
1729                 end += extra_samples;
1730         } else {
1731                 end = max_frames;
1732         }
1733
1734         if (both_axes) {
1735                 /* save visual state with track states included, and prevent
1736                    set_frames_per_unit() from doing it again.
1737                 */
1738                 undo_visual_stack.push_back (current_visual_state(true));
1739                 no_save_visual = true;
1740         }
1741
1742         temporal_zoom_by_frame (start, end, "zoom to region");
1743
1744         if (both_axes) {
1745                 uint32_t per_track_height = (uint32_t) floor ((_canvas_height - canvas_timebars_vsize - 10.0) / tracks.size());
1746
1747                 /* set visible track heights appropriately */
1748
1749                 for (set<TimeAxisView*>::iterator t = tracks.begin(); t != tracks.end(); ++t) {
1750                         (*t)->set_height (per_track_height);
1751                 }
1752
1753                 /* hide irrelevant tracks */
1754
1755                 _routes->suspend_redisplay ();
1756
1757                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1758                         if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
1759                                 hide_track_in_display (**i, true);
1760                         }
1761                 }
1762
1763                 _routes->resume_redisplay ();
1764
1765                 vertical_adjustment.set_value (0.0);
1766                 no_save_visual = false;
1767         }
1768
1769         zoomed_to_region = true;
1770         redo_visual_stack.push_back (current_visual_state());
1771 }
1772
1773 void
1774 Editor::toggle_zoom_region (bool both_axes)
1775 {
1776         if (zoomed_to_region) {
1777                 swap_visual_state ();
1778         } else {
1779                 temporal_zoom_region (both_axes);
1780         }
1781 }
1782
1783 void
1784 Editor::temporal_zoom_selection ()
1785 {
1786         if (!selection) return;
1787
1788         if (selection->time.empty()) {
1789                 return;
1790         }
1791
1792         nframes64_t start = selection->time[clicked_selection].start;
1793         nframes64_t end = selection->time[clicked_selection].end;
1794
1795         temporal_zoom_by_frame (start, end, "zoom to selection");
1796 }
1797
1798 void
1799 Editor::temporal_zoom_session ()
1800 {
1801         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::temporal_zoom_session));
1802
1803         if (session) {
1804                 temporal_zoom_by_frame (session->current_start_frame(), session->current_end_frame(), "zoom to session");
1805         }
1806 }
1807
1808 void
1809 Editor::temporal_zoom_by_frame (nframes64_t start, nframes64_t end, const string & /*op*/)
1810 {
1811         if (!session) return;
1812
1813         if ((start == 0 && end == 0) || end < start) {
1814                 return;
1815         }
1816
1817         nframes64_t range = end - start;
1818
1819         double new_fpu = (double)range / (double)_canvas_width;
1820
1821         nframes64_t new_page = (nframes64_t) floor (_canvas_width * new_fpu);
1822         nframes64_t middle = (nframes64_t) floor( (double)start + ((double)range / 2.0f ));
1823         nframes64_t new_leftmost = (nframes64_t) floor( (double)middle - ((double)new_page/2.0f));
1824
1825         if (new_leftmost > middle) {
1826                 new_leftmost = 0;
1827         }
1828
1829         reposition_and_zoom (new_leftmost, new_fpu);
1830 }
1831
1832 void
1833 Editor::temporal_zoom_to_frame (bool coarser, nframes64_t frame)
1834 {
1835         if (!session) {
1836                 return;
1837         }
1838         double range_before = frame - leftmost_frame;
1839         double new_fpu;
1840
1841         new_fpu = frames_per_unit;
1842
1843         if (coarser) {
1844                 new_fpu *= 1.61803399;
1845                 range_before *= 1.61803399;
1846         } else {
1847                 new_fpu = max(1.0,(new_fpu/1.61803399));
1848                 range_before /= 1.61803399;
1849         }
1850
1851         if (new_fpu == frames_per_unit)  {
1852                 return;
1853         }
1854
1855         nframes64_t new_leftmost = frame - (nframes64_t)range_before;
1856
1857         if (new_leftmost > frame) {
1858                 new_leftmost = 0;
1859         }
1860 //      begin_reversible_command (_("zoom to frame"));
1861 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1862 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1863 //      commit_reversible_command ();
1864
1865         reposition_and_zoom (new_leftmost, new_fpu);
1866 }
1867
1868
1869 bool
1870 Editor::choose_new_marker_name(string &name) {
1871
1872         if (!Config->get_name_new_markers()) {
1873                 /* don't prompt user for a new name */
1874                 return true;
1875         }
1876
1877         ArdourPrompter dialog (true);
1878
1879         dialog.set_prompt (_("New Name:"));
1880
1881         dialog.set_title (_("New Location Marker"));
1882
1883         dialog.set_name ("MarkNameWindow");
1884         dialog.set_size_request (250, -1);
1885         dialog.set_position (Gtk::WIN_POS_MOUSE);
1886
1887         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1888         dialog.set_initial_text (name);
1889
1890         dialog.show ();
1891
1892         switch (dialog.run ()) {
1893         case RESPONSE_ACCEPT:
1894                 break;
1895         default:
1896                 return false;
1897         }
1898
1899         dialog.get_result(name);
1900         return true;
1901
1902 }
1903
1904
1905 void
1906 Editor::add_location_from_selection ()
1907 {
1908         string rangename;
1909
1910         if (selection->time.empty()) {
1911                 return;
1912         }
1913
1914         if (session == 0 || clicked_axisview == 0) {
1915                 return;
1916         }
1917
1918         nframes64_t start = selection->time[clicked_selection].start;
1919         nframes64_t end = selection->time[clicked_selection].end;
1920
1921         session->locations()->next_available_name(rangename,"selection");
1922         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1923
1924         session->begin_reversible_command (_("add marker"));
1925         XMLNode &before = session->locations()->get_state();
1926         session->locations()->add (location, true);
1927         XMLNode &after = session->locations()->get_state();
1928         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1929         session->commit_reversible_command ();
1930 }
1931
1932 void
1933 Editor::add_location_mark (nframes64_t where)
1934 {
1935         string markername;
1936
1937         select_new_marker = true;
1938
1939         session->locations()->next_available_name(markername,"mark");
1940         if (!choose_new_marker_name(markername)) {
1941                 return;
1942         }
1943         Location *location = new Location (where, where, markername, Location::IsMark);
1944         session->begin_reversible_command (_("add marker"));
1945         XMLNode &before = session->locations()->get_state();
1946         session->locations()->add (location, true);
1947         XMLNode &after = session->locations()->get_state();
1948         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1949         session->commit_reversible_command ();
1950 }
1951
1952 void
1953 Editor::add_location_from_playhead_cursor ()
1954 {
1955         add_location_mark (session->audible_frame());
1956 }
1957
1958 void
1959 Editor::add_locations_from_audio_region ()
1960 {
1961         RegionSelection rs;
1962
1963         get_regions_for_action (rs);
1964
1965         if (rs.empty()) {
1966                 return;
1967         }
1968
1969         session->begin_reversible_command (rs.size () > 1 ? _("add markers") : _("add marker"));
1970         XMLNode &before = session->locations()->get_state();
1971
1972         cerr << "Add locations\n";
1973
1974         for (RegionSelection::iterator i = rs.begin (); i != rs.end (); ++i) {
1975
1976                 boost::shared_ptr<Region> region = (*i)->region ();
1977
1978                 Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
1979
1980                 session->locations()->add (location, true);
1981         }
1982
1983         XMLNode &after = session->locations()->get_state();
1984         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
1985         session->commit_reversible_command ();
1986 }
1987
1988 void
1989 Editor::add_location_from_audio_region ()
1990 {
1991         RegionSelection rs;
1992
1993         get_regions_for_action (rs);
1994
1995         if (rs.empty()) {
1996                 return;
1997         }
1998
1999         session->begin_reversible_command (_("add marker"));
2000         XMLNode &before = session->locations()->get_state();
2001
2002         string markername;
2003
2004         if (rs.size() > 1) {            // more than one region selected
2005                 session->locations()->next_available_name(markername, "regions");
2006         } else {
2007                 RegionView* rv = *(rs.begin());
2008                 boost::shared_ptr<Region> region = rv->region();
2009                 markername = region->name();
2010         }
2011
2012         if (!choose_new_marker_name(markername)) {
2013                 return;
2014         }
2015
2016         cerr << "Add location\n";
2017
2018         // single range spanning all selected
2019         Location *location = new Location (rs.start(), rs.end_frame(), markername, Location::IsRangeMarker);
2020         session->locations()->add (location, true);
2021
2022         XMLNode &after = session->locations()->get_state();
2023         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
2024         session->commit_reversible_command ();
2025 }
2026
2027 void
2028 Editor::amplitude_zoom_step (bool in)
2029 {
2030         gdouble zoom = 1.0;
2031
2032         if (in) {
2033                 zoom *= 2.0;
2034         } else {
2035                 if (zoom > 2.0) {
2036                         zoom /= 2.0;
2037                 } else {
2038                         zoom = 1.0;
2039                 }
2040         }
2041
2042 #ifdef FIX_FOR_CANVAS
2043         /* XXX DO SOMETHING */
2044 #endif
2045 }
2046
2047
2048 /* DELETION */
2049
2050
2051 void
2052 Editor::delete_sample_forward ()
2053 {
2054 }
2055
2056 void
2057 Editor::delete_sample_backward ()
2058 {
2059 }
2060
2061 void
2062 Editor::delete_screen ()
2063 {
2064 }
2065
2066 /* SEARCH */
2067
2068 void
2069 Editor::search_backwards ()
2070 {
2071         /* what ? */
2072 }
2073
2074 void
2075 Editor::search_forwards ()
2076 {
2077         /* what ? */
2078 }
2079
2080 /* MARKS */
2081
2082 void
2083 Editor::jump_forward_to_mark ()
2084 {
2085         if (!session) {
2086                 return;
2087         }
2088
2089         Location *location = session->locations()->first_location_after (playhead_cursor->current_frame);
2090
2091         if (location) {
2092                 session->request_locate (location->start(), session->transport_rolling());
2093         } else {
2094                 session->request_locate (session->current_end_frame());
2095         }
2096 }
2097
2098 void
2099 Editor::jump_backward_to_mark ()
2100 {
2101         if (!session) {
2102                 return;
2103         }
2104
2105         Location *location = session->locations()->first_location_before (playhead_cursor->current_frame);
2106
2107         if (location) {
2108                 session->request_locate (location->start(), session->transport_rolling());
2109         } else {
2110                 session->goto_start ();
2111         }
2112 }
2113
2114 void
2115 Editor::set_mark ()
2116 {
2117         nframes64_t pos;
2118         float prefix;
2119         bool was_floating;
2120         string markername;
2121
2122         if (get_prefix (prefix, was_floating)) {
2123                 pos = session->audible_frame ();
2124         } else {
2125                 if (was_floating) {
2126                         pos = (nframes64_t) floor (prefix * session->frame_rate ());
2127                 } else {
2128                         pos = (nframes64_t) floor (prefix);
2129                 }
2130         }
2131
2132         session->locations()->next_available_name(markername,"mark");
2133         if (!choose_new_marker_name(markername)) {
2134                 return;
2135         }
2136         session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
2137 }
2138
2139 void
2140 Editor::clear_markers ()
2141 {
2142         if (session) {
2143                 session->begin_reversible_command (_("clear markers"));
2144                 XMLNode &before = session->locations()->get_state();
2145                 session->locations()->clear_markers ();
2146                 XMLNode &after = session->locations()->get_state();
2147                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2148                 session->commit_reversible_command ();
2149         }
2150 }
2151
2152 void
2153 Editor::clear_ranges ()
2154 {
2155         if (session) {
2156                 session->begin_reversible_command (_("clear ranges"));
2157                 XMLNode &before = session->locations()->get_state();
2158
2159                 Location * looploc = session->locations()->auto_loop_location();
2160                 Location * punchloc = session->locations()->auto_punch_location();
2161
2162                 session->locations()->clear_ranges ();
2163                 // re-add these
2164                 if (looploc) session->locations()->add (looploc);
2165                 if (punchloc) session->locations()->add (punchloc);
2166
2167                 XMLNode &after = session->locations()->get_state();
2168                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2169                 session->commit_reversible_command ();
2170         }
2171 }
2172
2173 void
2174 Editor::clear_locations ()
2175 {
2176         session->begin_reversible_command (_("clear locations"));
2177         XMLNode &before = session->locations()->get_state();
2178         session->locations()->clear ();
2179         XMLNode &after = session->locations()->get_state();
2180         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2181         session->commit_reversible_command ();
2182         session->locations()->clear ();
2183 }
2184
2185 void
2186 Editor::unhide_markers ()
2187 {
2188         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2189                 Location *l = (*i).first;
2190                 if (l->is_hidden() && l->is_mark()) {
2191                         l->set_hidden(false, this);
2192                 }
2193         }
2194 }
2195
2196 void
2197 Editor::unhide_ranges ()
2198 {
2199         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2200                 Location *l = (*i).first;
2201                 if (l->is_hidden() && l->is_range_marker()) {
2202                         l->set_hidden(false, this);
2203                 }
2204         }
2205 }
2206
2207 /* INSERT/REPLACE */
2208
2209 void
2210 Editor::insert_region_list_drag (boost::shared_ptr<Region> region, int x, int y)
2211 {
2212         double wx, wy;
2213         double cx, cy;
2214         nframes64_t where;
2215         RouteTimeAxisView *rtv = 0;
2216         boost::shared_ptr<Playlist> playlist;
2217
2218         track_canvas->window_to_world (x, y, wx, wy);
2219         //wx += horizontal_adjustment.get_value();
2220         //wy += vertical_adjustment.get_value();
2221
2222         GdkEvent event;
2223         event.type = GDK_BUTTON_RELEASE;
2224         event.button.x = wx;
2225         event.button.y = wy;
2226
2227         where = event_frame (&event, &cx, &cy);
2228
2229         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
2230                 /* clearly outside canvas area */
2231                 return;
2232         }
2233
2234         std::pair<TimeAxisView*, int> tv = trackview_by_y_position (cy);
2235         if (tv.first == 0) {
2236                 return;
2237         }
2238
2239         if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
2240                 return;
2241         }
2242
2243         if ((playlist = rtv->playlist()) == 0) {
2244                 return;
2245         }
2246
2247         snap_to (where);
2248
2249         begin_reversible_command (_("insert dragged region"));
2250         XMLNode &before = playlist->get_state();
2251         playlist->add_region (RegionFactory::create (region), where, 1.0);
2252         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2253         commit_reversible_command ();
2254 }
2255
2256 void
2257 Editor::insert_route_list_drag (boost::shared_ptr<Route> route, int x, int y) {
2258         double wx, wy;
2259         double cx, cy;
2260         nframes_t where;
2261         RouteTimeAxisView *dest_rtv = 0;
2262         RouteTimeAxisView *source_rtv = 0;
2263
2264         track_canvas->window_to_world (x, y, wx, wy);
2265         wx += horizontal_adjustment.get_value();
2266         wy += vertical_adjustment.get_value();
2267
2268         GdkEvent event;
2269         event.type = GDK_BUTTON_RELEASE;
2270         event.button.x = wx;
2271         event.button.y = wy;
2272
2273         where = event_frame (&event, &cx, &cy);
2274
2275         std::pair<TimeAxisView*, int> const tv = trackview_by_y_position (cy);
2276         if (tv.first == 0) {
2277                 return;
2278         }
2279
2280         if ((dest_rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
2281                 return;
2282         }
2283
2284         /* use this drag source to add underlay to a track. But we really don't care
2285            about the Route, only the view of the route, so find it first */
2286         for(TrackViewList::iterator it = track_views.begin(); it != track_views.end(); ++it) {
2287                 if((source_rtv = dynamic_cast<RouteTimeAxisView*>(*it)) == 0) {
2288                         continue;
2289                 }
2290
2291                 if(source_rtv->route() == route && source_rtv != dest_rtv) {
2292                         dest_rtv->add_underlay(source_rtv->view());
2293                         break;
2294                 }
2295         }
2296 }
2297
2298 void
2299 Editor::insert_region_list_selection (float times)
2300 {
2301         RouteTimeAxisView *tv = 0;
2302         boost::shared_ptr<Playlist> playlist;
2303
2304         if (clicked_routeview != 0) {
2305                 tv = clicked_routeview;
2306         } else if (!selection->tracks.empty()) {
2307                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2308                         return;
2309                 }
2310         } else if (entered_track != 0) {
2311                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2312                         return;
2313                 }
2314         } else {
2315                 return;
2316         }
2317
2318         if ((playlist = tv->playlist()) == 0) {
2319                 return;
2320         }
2321
2322         boost::shared_ptr<Region> region = _regions->get_single_selection ();
2323         if (region == 0) {
2324                 return;
2325         }
2326
2327         begin_reversible_command (_("insert region"));
2328         XMLNode &before = playlist->get_state();
2329         playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2330         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2331         commit_reversible_command ();
2332 }
2333
2334 /* BUILT-IN EFFECTS */
2335
2336 void
2337 Editor::reverse_selection ()
2338 {
2339
2340 }
2341
2342 /* GAIN ENVELOPE EDITING */
2343
2344 void
2345 Editor::edit_envelope ()
2346 {
2347 }
2348
2349 /* PLAYBACK */
2350
2351 void
2352 Editor::transition_to_rolling (bool fwd)
2353 {
2354         if (!session) {
2355                 return;
2356         }
2357
2358         switch (Config->get_slave_source()) {
2359         case None:
2360         case JACK:
2361                 break;
2362         default:
2363                 /* transport controlled by the master */
2364                 return;
2365         }
2366
2367         if (session->is_auditioning()) {
2368                 session->cancel_audition ();
2369                 return;
2370         }
2371
2372         session->request_transport_speed (fwd ? 1.0f : -1.0f);
2373 }
2374
2375 void
2376 Editor::toggle_playback (bool with_abort)
2377 {
2378         if (!session) {
2379                 return;
2380         }
2381
2382         switch (Config->get_slave_source()) {
2383         case None:
2384         case JACK:
2385                 break;
2386         default:
2387                 /* transport controlled by the master */
2388                 return;
2389         }
2390
2391         if (session->is_auditioning()) {
2392                 session->cancel_audition ();
2393                 return;
2394         }
2395
2396         if (session->transport_rolling()) {
2397                 session->request_stop (with_abort);
2398                 if (session->get_play_loop()) {
2399                         session->request_play_loop (false);
2400                 }
2401         } else {
2402                 session->request_transport_speed (1.0f);
2403         }
2404 }
2405
2406 void
2407 Editor::play_from_start ()
2408 {
2409         session->request_locate (session->current_start_frame(), true);
2410 }
2411
2412 void
2413 Editor::play_from_edit_point ()
2414 {
2415         session->request_locate (get_preferred_edit_position(), true);
2416 }
2417
2418 void
2419 Editor::play_from_edit_point_and_return ()
2420 {
2421         nframes64_t start_frame;
2422         nframes64_t return_frame;
2423
2424         start_frame = get_preferred_edit_position (true);
2425
2426         if (session->transport_rolling()) {
2427                 session->request_locate (start_frame, false);
2428                 return;
2429         }
2430
2431         /* don't reset the return frame if its already set */
2432
2433         if ((return_frame = session->requested_return_frame()) < 0) {
2434                 return_frame = session->audible_frame();
2435         }
2436
2437         if (start_frame >= 0) {
2438                 session->request_roll_at_and_return (start_frame, return_frame);
2439         }
2440 }
2441
2442 void
2443 Editor::play_selection ()
2444 {
2445         if (selection->time.empty()) {
2446                 return;
2447         }
2448
2449         session->request_play_range (true);
2450 }
2451
2452 void
2453 Editor::loop_selected_region ()
2454 {
2455         RegionSelection rs;
2456
2457         get_regions_for_action (rs);
2458
2459         if (!rs.empty()) {
2460                 RegionView *rv = *(rs.begin());
2461                 Location* tll;
2462
2463                 if ((tll = transport_loop_location()) != 0)  {
2464
2465                         tll->set (rv->region()->position(), rv->region()->last_frame());
2466
2467                         // enable looping, reposition and start rolling
2468
2469                         session->request_play_loop (true);
2470                         session->request_locate (tll->start(), false);
2471                         session->request_transport_speed (1.0f);
2472                 }
2473         }
2474 }
2475
2476 void
2477 Editor::play_location (Location& location)
2478 {
2479         if (location.start() <= location.end()) {
2480                 return;
2481         }
2482
2483         session->request_bounded_roll (location.start(), location.end());
2484 }
2485
2486 void
2487 Editor::loop_location (Location& location)
2488 {
2489         if (location.start() <= location.end()) {
2490                 return;
2491         }
2492
2493         Location* tll;
2494
2495         if ((tll = transport_loop_location()) != 0) {
2496                 tll->set (location.start(), location.end());
2497
2498                 // enable looping, reposition and start rolling
2499                 session->request_play_loop (true);
2500                 session->request_locate (tll->start(), true);
2501         }
2502 }
2503
2504 void
2505 Editor::raise_region ()
2506 {
2507         selection->foreach_region (&Region::raise);
2508 }
2509
2510 void
2511 Editor::raise_region_to_top ()
2512 {
2513         selection->foreach_region (&Region::raise_to_top);
2514 }
2515
2516 void
2517 Editor::lower_region ()
2518 {
2519         selection->foreach_region (&Region::lower);
2520 }
2521
2522 void
2523 Editor::lower_region_to_bottom ()
2524 {
2525         selection->foreach_region (&Region::lower_to_bottom);
2526 }
2527
2528 /** Show the region editor for the selected regions */
2529 void
2530 Editor::edit_region ()
2531 {
2532         selection->foreach_regionview (&RegionView::show_region_editor);
2533 }
2534
2535 /** Show the midi list editor for the selected MIDI regions */
2536 void
2537 Editor::show_midi_list_editor ()
2538 {
2539         selection->foreach_midi_regionview (&MidiRegionView::show_list_editor);
2540 }
2541
2542 void
2543 Editor::rename_region()
2544 {
2545         RegionSelection rs;
2546
2547         get_regions_for_action (rs);
2548
2549         if (rs.empty()) {
2550                 return;
2551         }
2552
2553         ArdourDialog d (*this, _("Rename Region"), true, false);
2554         Entry entry;
2555         Label label (_("New name:"));
2556         HBox hbox;
2557
2558         hbox.set_spacing (6);
2559         hbox.pack_start (label, false, false);
2560         hbox.pack_start (entry, true, true);
2561
2562         d.get_vbox()->set_border_width (12);
2563         d.get_vbox()->pack_start (hbox, false, false);
2564
2565         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2566         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2567
2568         d.set_size_request (300, -1);
2569         d.set_position (Gtk::WIN_POS_MOUSE);
2570
2571         entry.set_text (rs.front()->region()->name());
2572         entry.select_region (0, -1);
2573
2574         entry.signal_activate().connect (bind (mem_fun (d, &Dialog::response), RESPONSE_OK));
2575
2576         d.show_all ();
2577
2578         entry.grab_focus();
2579
2580         int ret = d.run();
2581
2582         d.hide ();
2583
2584         if (ret == RESPONSE_OK) {
2585                 std::string str = entry.get_text();
2586                 strip_whitespace_edges (str);
2587                 if (!str.empty()) {
2588                         rs.front()->region()->set_name (str);
2589                         _regions->redisplay ();
2590                 }
2591         }
2592 }
2593
2594 void
2595 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2596 {
2597         if (session->is_auditioning()) {
2598                 session->cancel_audition ();
2599         }
2600
2601         // note: some potential for creativity here, because region doesn't
2602         // have to belong to the playlist that Route is handling
2603
2604         // bool was_soloed = route.soloed();
2605
2606         route.set_solo (true, this);
2607
2608         session->request_bounded_roll (region->position(), region->position() + region->length());
2609
2610         /* XXX how to unset the solo state ? */
2611 }
2612
2613 /** Start an audition of the first selected region */
2614 void
2615 Editor::play_edit_range ()
2616 {
2617         nframes64_t start, end;
2618
2619         if (get_edit_op_range (start, end)) {
2620                 session->request_bounded_roll (start, end);
2621         }
2622 }
2623
2624 void
2625 Editor::play_selected_region ()
2626 {
2627         nframes64_t start = max_frames;
2628         nframes64_t end = 0;
2629         RegionSelection rs;
2630
2631         get_regions_for_action (rs);
2632
2633         if (rs.empty()) {
2634                 return;
2635         }
2636
2637         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2638                 if ((*i)->region()->position() < start) {
2639                         start = (*i)->region()->position();
2640                 }
2641                 if ((*i)->region()->last_frame() + 1 > end) {
2642                         end = (*i)->region()->last_frame() + 1;
2643                 }
2644         }
2645
2646         session->request_stop ();
2647         session->request_bounded_roll (start, end);
2648 }
2649
2650 void
2651 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2652 {
2653         session->audition_region (region);
2654 }
2655
2656 void
2657 Editor::build_interthread_progress_window ()
2658 {
2659         interthread_progress_window = new ArdourDialog (X_("interthread progress"), true);
2660
2661         interthread_progress_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
2662
2663         interthread_progress_window->set_border_width (12);
2664         interthread_progress_window->get_vbox()->set_spacing (6);
2665
2666         interthread_progress_label.set_alignment (0.5, 0.5);
2667
2668         interthread_progress_window->get_vbox()->pack_start (interthread_progress_label, false, false);
2669         interthread_progress_window->get_vbox()->pack_start (interthread_progress_bar,false, false);
2670
2671         // GTK2FIX: this button needs a modifiable label
2672
2673         Button* b = interthread_progress_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
2674         b->signal_clicked().connect (mem_fun(*this, &Editor::interthread_cancel_clicked));
2675
2676         interthread_cancel_button.add (interthread_cancel_label);
2677
2678         interthread_progress_window->set_default_size (200, 100);
2679 }
2680
2681 void
2682 Editor::interthread_cancel_clicked ()
2683 {
2684         if (current_interthread_info) {
2685                 current_interthread_info->cancel = true;
2686         }
2687 }
2688
2689 void
2690 Editor::region_from_selection ()
2691 {
2692         if (clicked_axisview == 0) {
2693                 return;
2694         }
2695
2696         if (selection->time.empty()) {
2697                 return;
2698         }
2699
2700         nframes64_t start = selection->time[clicked_selection].start;
2701         nframes64_t end = selection->time[clicked_selection].end;
2702
2703         TrackSelection tracks = get_tracks_for_range_action ();
2704
2705         nframes64_t selection_cnt = end - start + 1;
2706
2707         for (TrackSelection::iterator i = tracks.begin(); i != tracks.end(); ++i) {
2708                 boost::shared_ptr<Region> current;
2709                 boost::shared_ptr<Playlist> pl;
2710                 nframes64_t internal_start;
2711                 string new_name;
2712
2713                 if ((pl = (*i)->playlist()) == 0) {
2714                         continue;
2715                 }
2716
2717                 if ((current = pl->top_region_at (start)) == 0) {
2718                         continue;
2719                 }
2720
2721                 internal_start = start - current->position();
2722                 session->region_name (new_name, current->name(), true);
2723                 boost::shared_ptr<Region> region (RegionFactory::create (current,
2724                                 internal_start, selection_cnt, new_name));
2725         }
2726 }
2727
2728 void
2729 Editor::create_region_from_selection (vector<boost::shared_ptr<Region> >& new_regions)
2730 {
2731         if (selection->time.empty() || selection->tracks.empty()) {
2732                 return;
2733         }
2734
2735         nframes64_t start = selection->time[clicked_selection].start;
2736         nframes64_t end = selection->time[clicked_selection].end;
2737
2738         sort_track_selection ();
2739
2740         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2741                 boost::shared_ptr<Region> current;
2742                 boost::shared_ptr<Playlist> playlist;
2743                 nframes64_t internal_start;
2744                 string new_name;
2745
2746                 if ((playlist = (*i)->playlist()) == 0) {
2747                         continue;
2748                 }
2749
2750                 if ((current = playlist->top_region_at(start)) == 0) {
2751                         continue;
2752                 }
2753
2754                 internal_start = start - current->position();
2755                 session->region_name (new_name, current->name(), true);
2756
2757                 new_regions.push_back (RegionFactory::create (current,
2758                                         internal_start, end - start + 1, new_name));
2759         }
2760 }
2761
2762 void
2763 Editor::split_multichannel_region ()
2764 {
2765         RegionSelection rs;
2766
2767         get_regions_for_action (rs);
2768
2769         if (rs.empty()) {
2770                 return;
2771         }
2772
2773         vector< boost::shared_ptr<Region> > v;
2774
2775         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2776                 (*x)->region()->separate_by_channel (*session, v);
2777         }
2778 }
2779
2780 void
2781 Editor::new_region_from_selection ()
2782 {
2783         region_from_selection ();
2784         cancel_selection ();
2785 }
2786
2787 static void
2788 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2789 {
2790         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2791         case OverlapNone:
2792                 break;
2793         default:
2794                 rs->push_back (rv);
2795         }
2796 }
2797
2798 /** Return either:
2799  *    - selected tracks, or if there are none...
2800  *    - tracks containing selected regions, or if there are none...
2801  *    - all tracks
2802  * @return tracks.
2803  */
2804 TrackSelection
2805 Editor::get_tracks_for_range_action () const
2806 {
2807         TrackSelection t;
2808
2809         if (selection->tracks.empty()) {
2810
2811                 /* use tracks with selected regions */
2812
2813                 RegionSelection rs = selection->regions;
2814
2815                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2816                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2817
2818                         if (!t.contains (tv)) {
2819                                 t.push_back (tv);
2820                         }
2821                 }
2822
2823                 if (t.empty()) {
2824                         /* no regions and no tracks: use all tracks */
2825                         t = track_views;
2826                 }
2827
2828         } else {
2829
2830                 t = selection->tracks;
2831         }
2832
2833         return t;
2834 }
2835
2836 void
2837 Editor::separate_regions_between (const TimeSelection& ts)
2838 {
2839         bool in_command = false;
2840         boost::shared_ptr<Playlist> playlist;
2841         RegionSelection new_selection;
2842
2843         TrackSelection tmptracks = get_tracks_for_range_action ();
2844         sort_track_selection (&tmptracks);
2845
2846         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2847
2848                 RouteTimeAxisView* rtv;
2849
2850                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2851
2852                         if (rtv->is_track()) {
2853
2854                                 /* no edits to destructive tracks */
2855
2856                                 if (rtv->track()->diskstream()->destructive()) {
2857                                         continue;
2858                                 }
2859
2860                                 if ((playlist = rtv->playlist()) != 0) {
2861
2862                                         XMLNode *before;
2863                                         bool got_some;
2864
2865                                         before = &(playlist->get_state());
2866                                         got_some = false;
2867
2868                                         /* XXX need to consider musical time selections here at some point */
2869
2870                                         double speed = rtv->get_diskstream()->speed();
2871
2872
2873                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2874
2875                                                 sigc::connection c = rtv->view()->RegionViewAdded.connect (
2876                                                                 mem_fun(*this, &Editor::collect_new_region_view));
2877                                                 latest_regionviews.clear ();
2878
2879                                                 playlist->partition ((nframes64_t)((*t).start * speed),
2880                                                                 (nframes64_t)((*t).end * speed), true);
2881
2882                                                 c.disconnect ();
2883
2884                                                 if (!latest_regionviews.empty()) {
2885
2886                                                         got_some = true;
2887
2888                                                         rtv->view()->foreach_regionview (bind (
2889                                                                                 sigc::ptr_fun (add_if_covered),
2890                                                                                 &(*t), &new_selection));
2891
2892                                                         if (!in_command) {
2893                                                                 begin_reversible_command (_("separate"));
2894                                                                 in_command = true;
2895                                                         }
2896
2897                                                         session->add_command(new MementoCommand<Playlist>(
2898                                                                         *playlist, before, &playlist->get_state()));
2899                                                 }
2900                                         }
2901
2902                                         if (!got_some) {
2903                                                 delete before;
2904                                         }
2905                                 }
2906                         }
2907                 }
2908         }
2909
2910         if (in_command) {
2911                 selection->set (new_selection);
2912                 set_mouse_mode (MouseObject);
2913
2914                 commit_reversible_command ();
2915         }
2916 }
2917
2918 /** Take tracks from get_tracks_for_range_action and cut any regions
2919  *  on those tracks so that the tracks are empty over the time
2920  *  selection.
2921  */
2922 void
2923 Editor::separate_region_from_selection ()
2924 {
2925         /* preferentially use *all* ranges in the time selection if we're in range mode
2926            to allow discontiguous operation, since get_edit_op_range() currently
2927            returns a single range.
2928         */
2929
2930         if (mouse_mode == MouseRange && !selection->time.empty()) {
2931
2932                 separate_regions_between (selection->time);
2933
2934         } else {
2935
2936                 nframes64_t start;
2937                 nframes64_t end;
2938
2939                 if (get_edit_op_range (start, end)) {
2940
2941                         AudioRange ar (start, end, 1);
2942                         TimeSelection ts;
2943                         ts.push_back (ar);
2944
2945                         separate_regions_between (ts);
2946                 }
2947         }
2948 }
2949
2950 void
2951 Editor::separate_region_from_punch ()
2952 {
2953         Location* loc  = session->locations()->auto_punch_location();
2954         if (loc) {
2955                 separate_regions_using_location (*loc);
2956         }
2957 }
2958
2959 void
2960 Editor::separate_region_from_loop ()
2961 {
2962         Location* loc  = session->locations()->auto_loop_location();
2963         if (loc) {
2964                 separate_regions_using_location (*loc);
2965         }
2966 }
2967
2968 void
2969 Editor::separate_regions_using_location (Location& loc)
2970 {
2971         if (loc.is_mark()) {
2972                 return;
2973         }
2974
2975         AudioRange ar (loc.start(), loc.end(), 1);
2976         TimeSelection ts;
2977
2978         ts.push_back (ar);
2979
2980         separate_regions_between (ts);
2981 }
2982
2983 void
2984 Editor::crop_region_to_selection ()
2985 {
2986         if (!selection->time.empty()) {
2987
2988                 crop_region_to (selection->time.start(), selection->time.end_frame());
2989
2990         } else {
2991
2992                 nframes64_t start;
2993                 nframes64_t end;
2994
2995                 if (get_edit_op_range (start, end)) {
2996                         crop_region_to (start, end);
2997                 }
2998         }
2999
3000 }
3001
3002 void
3003 Editor::crop_region_to (nframes64_t start, nframes64_t end)
3004 {
3005         vector<boost::shared_ptr<Playlist> > playlists;
3006         boost::shared_ptr<Playlist> playlist;
3007         TrackSelection* ts;
3008
3009         if (selection->tracks.empty()) {
3010                 ts = &track_views;
3011         } else {
3012                 sort_track_selection ();
3013                 ts = &selection->tracks;
3014         }
3015
3016         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
3017
3018                 RouteTimeAxisView* rtv;
3019
3020                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
3021
3022                         boost::shared_ptr<Track> t = rtv->track();
3023
3024                         if (t != 0 && ! t->diskstream()->destructive()) {
3025
3026                                 if ((playlist = rtv->playlist()) != 0) {
3027                                         playlists.push_back (playlist);
3028                                 }
3029                         }
3030                 }
3031         }
3032
3033         if (playlists.empty()) {
3034                 return;
3035         }
3036
3037         nframes64_t the_start;
3038         nframes64_t the_end;
3039         nframes64_t cnt;
3040
3041         begin_reversible_command (_("trim to selection"));
3042
3043         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
3044
3045                 boost::shared_ptr<Region> region;
3046
3047                 the_start = start;
3048
3049                 if ((region = (*i)->top_region_at(the_start)) == 0) {
3050                         continue;
3051                 }
3052
3053                 /* now adjust lengths to that we do the right thing
3054                    if the selection extends beyond the region
3055                 */
3056
3057                 the_start = max (the_start, (nframes64_t) region->position());
3058                 if (max_frames - the_start < region->length()) {
3059                         the_end = the_start + region->length() - 1;
3060                 } else {
3061                         the_end = max_frames;
3062                 }
3063                 the_end = min (end, the_end);
3064                 cnt = the_end - the_start + 1;
3065
3066                 XMLNode &before = (*i)->get_state();
3067                 region->trim_to (the_start, cnt, this);
3068                 XMLNode &after = (*i)->get_state();
3069                 session->add_command (new MementoCommand<Playlist>(*(*i), &before, &after));
3070         }
3071
3072         commit_reversible_command ();
3073 }
3074
3075 void
3076 Editor::region_fill_track ()
3077 {
3078         nframes64_t end;
3079         RegionSelection rs;
3080
3081         get_regions_for_action (rs);
3082
3083         if (!session || rs.empty()) {
3084                 return;
3085         }
3086
3087         end = session->current_end_frame ();
3088
3089         begin_reversible_command (_("region fill"));
3090
3091         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3092
3093                 boost::shared_ptr<Region> region ((*i)->region());
3094
3095                 // FIXME
3096                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
3097                 assert(ar);
3098
3099                 boost::shared_ptr<Playlist> pl = region->playlist();
3100
3101                 if (end <= region->last_frame()) {
3102                         return;
3103                 }
3104
3105                 double times = (double) (end - region->last_frame()) / (double) region->length();
3106
3107                 if (times == 0) {
3108                         return;
3109                 }
3110
3111                 XMLNode &before = pl->get_state();
3112                 pl->add_region (RegionFactory::create (ar), ar->last_frame(), times);
3113                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
3114         }
3115
3116         commit_reversible_command ();
3117 }
3118
3119 void
3120 Editor::region_fill_selection ()
3121 {
3122         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3123                 return;
3124         }
3125
3126         if (selection->time.empty()) {
3127                 return;
3128         }
3129
3130         boost::shared_ptr<Region> region = _regions->get_single_selection ();
3131         if (region == 0) {
3132                 return;
3133         }
3134
3135         nframes64_t start = selection->time[clicked_selection].start;
3136         nframes64_t end = selection->time[clicked_selection].end;
3137
3138         boost::shared_ptr<Playlist> playlist;
3139
3140         if (selection->tracks.empty()) {
3141                 return;
3142         }
3143
3144         nframes64_t selection_length = end - start;
3145         float times = (float)selection_length / region->length();
3146
3147         begin_reversible_command (_("fill selection"));
3148
3149         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3150
3151                 if ((playlist = (*i)->playlist()) == 0) {
3152                         continue;
3153                 }
3154
3155                 XMLNode &before = playlist->get_state();
3156                 playlist->add_region (RegionFactory::create (region), start, times);
3157                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3158         }
3159
3160         commit_reversible_command ();
3161 }
3162
3163 void
3164 Editor::set_region_sync_from_edit_point ()
3165 {
3166         nframes64_t where = get_preferred_edit_position ();
3167         RegionSelection rs;
3168         get_regions_for_action (rs);
3169         set_sync_point (where, rs);
3170 }
3171
3172 void
3173 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
3174 {
3175         bool in_command = false;
3176
3177         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3178
3179                 if (!(*r)->region()->covers (where)) {
3180                         continue;
3181                 }
3182
3183                 boost::shared_ptr<Region> region ((*r)->region());
3184
3185                 if (!in_command) {
3186                         begin_reversible_command (_("set sync point"));
3187                         in_command = true;
3188                 }
3189
3190                 XMLNode &before = region->playlist()->get_state();
3191                 region->set_sync_position (where);
3192                 XMLNode &after = region->playlist()->get_state();
3193                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3194         }
3195
3196         if (in_command) {
3197                 commit_reversible_command ();
3198         }
3199 }
3200
3201 /** Remove the sync positions of the selection */
3202 void
3203 Editor::remove_region_sync ()
3204 {
3205         RegionSelection rs;
3206
3207         get_regions_for_action (rs);
3208
3209         if (rs.empty()) {
3210                 return;
3211         }
3212
3213         begin_reversible_command (_("remove sync"));
3214         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3215
3216                 XMLNode &before = (*i)->region()->playlist()->get_state();
3217                 (*i)->region()->clear_sync_position ();
3218                 XMLNode &after = (*i)->region()->playlist()->get_state();
3219                 session->add_command(new MementoCommand<Playlist>(*((*i)->region()->playlist()), &before, &after));
3220         }
3221         commit_reversible_command ();
3222 }
3223
3224 void
3225 Editor::naturalize ()
3226 {
3227         RegionSelection rs;
3228
3229         get_regions_for_action (rs);
3230
3231         if (rs.empty()) {
3232                 return;
3233         }
3234
3235         begin_reversible_command (_("naturalize"));
3236         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3237                 XMLNode &before = (*i)->region()->get_state();
3238                 (*i)->region()->move_to_natural_position (this);
3239                 XMLNode &after = (*i)->region()->get_state();
3240                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
3241         }
3242         commit_reversible_command ();
3243 }
3244
3245 void
3246 Editor::align (RegionPoint what)
3247 {
3248         RegionSelection rs;
3249
3250         get_regions_for_action (rs);
3251         nframes64_t where = get_preferred_edit_position();
3252
3253         if (!rs.empty()) {
3254                 align_selection (what, where, rs);
3255         } else {
3256
3257                 RegionSelection rs;
3258                 get_regions_at (rs, where, selection->tracks);
3259                 align_selection (what, where, rs);
3260         }
3261 }
3262
3263 void
3264 Editor::align_relative (RegionPoint what)
3265 {
3266         nframes64_t where = get_preferred_edit_position();
3267         RegionSelection rs;
3268
3269         get_regions_for_action (rs);
3270
3271         if (!rs.empty()) {
3272                 align_selection_relative (what, where, rs);
3273         }
3274 }
3275
3276 struct RegionSortByTime {
3277     bool operator() (const RegionView* a, const RegionView* b) {
3278             return a->region()->position() < b->region()->position();
3279     }
3280 };
3281
3282 void
3283 Editor::align_selection_relative (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3284 {
3285         if (rs.empty()) {
3286                 return;
3287         }
3288
3289         nframes64_t distance = 0;
3290         nframes64_t pos = 0;
3291         int dir = 1;
3292
3293         list<RegionView*> sorted;
3294         rs.by_position (sorted);
3295
3296         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3297
3298         switch (point) {
3299         case Start:
3300                 pos = position;
3301                 if (position > r->position()) {
3302                         distance = position - r->position();
3303                 } else {
3304                         distance = r->position() - position;
3305                         dir = -1;
3306                 }
3307                 break;
3308
3309         case End:
3310                 if (position > r->last_frame()) {
3311                         distance = position - r->last_frame();
3312                         pos = r->position() + distance;
3313                 } else {
3314                         distance = r->last_frame() - position;
3315                         pos = r->position() - distance;
3316                         dir = -1;
3317                 }
3318                 break;
3319
3320         case SyncPoint:
3321                 pos = r->adjust_to_sync (position);
3322                 if (pos > r->position()) {
3323                         distance = pos - r->position();
3324                 } else {
3325                         distance = r->position() - pos;
3326                         dir = -1;
3327                 }
3328                 break;
3329         }
3330
3331         if (pos == r->position()) {
3332                 return;
3333         }
3334
3335         begin_reversible_command (_("align selection (relative)"));
3336
3337         /* move first one specially */
3338
3339         XMLNode &before = r->playlist()->get_state();
3340         r->set_position (pos, this);
3341         XMLNode &after = r->playlist()->get_state();
3342         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3343
3344         /* move rest by the same amount */
3345
3346         sorted.pop_front();
3347
3348         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3349
3350                 boost::shared_ptr<Region> region ((*i)->region());
3351
3352                 XMLNode &before = region->playlist()->get_state();
3353
3354                 if (dir > 0) {
3355                         region->set_position (region->position() + distance, this);
3356                 } else {
3357                         region->set_position (region->position() - distance, this);
3358                 }
3359
3360                 XMLNode &after = region->playlist()->get_state();
3361                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3362
3363         }
3364
3365         commit_reversible_command ();
3366 }
3367
3368 void
3369 Editor::align_selection (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3370 {
3371         if (rs.empty()) {
3372                 return;
3373         }
3374
3375         begin_reversible_command (_("align selection"));
3376
3377         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3378                 align_region_internal ((*i)->region(), point, position);
3379         }
3380
3381         commit_reversible_command ();
3382 }
3383
3384 void
3385 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3386 {
3387         begin_reversible_command (_("align region"));
3388         align_region_internal (region, point, position);
3389         commit_reversible_command ();
3390 }
3391
3392 void
3393 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3394 {
3395         XMLNode &before = region->playlist()->get_state();
3396
3397         switch (point) {
3398         case SyncPoint:
3399                 region->set_position (region->adjust_to_sync (position), this);
3400                 break;
3401
3402         case End:
3403                 if (position > region->length()) {
3404                         region->set_position (position - region->length(), this);
3405                 }
3406                 break;
3407
3408         case Start:
3409                 region->set_position (position, this);
3410                 break;
3411         }
3412
3413         XMLNode &after = region->playlist()->get_state();
3414         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3415 }
3416
3417 void
3418 Editor::trim_region_front ()
3419 {
3420         trim_region (true);
3421 }
3422
3423 void
3424 Editor::trim_region_back ()
3425 {
3426         trim_region (false);
3427 }
3428
3429 void
3430 Editor::trim_region (bool front)
3431 {
3432         nframes64_t where = get_preferred_edit_position();
3433         RegionSelection rs;
3434
3435         get_regions_for_action (rs);
3436
3437         if (rs.empty()) {
3438                 return;
3439         }
3440
3441         begin_reversible_command (front ? _("trim front") : _("trim back"));
3442
3443         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
3444                 if (!(*i)->region()->locked()) {
3445                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
3446                         XMLNode &before = pl->get_state();
3447                         if (front) {
3448                                 (*i)->region()->trim_front (where, this);
3449                         } else {
3450                                 (*i)->region()->trim_end (where, this);
3451                         }
3452                         XMLNode &after = pl->get_state();
3453                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
3454                 }
3455         }
3456
3457         commit_reversible_command ();
3458 }
3459
3460 /** Trim the end of the selected regions to the position of the edit cursor */
3461 void
3462 Editor::trim_region_to_loop ()
3463 {
3464         Location* loc = session->locations()->auto_loop_location();
3465         if (!loc) {
3466                 return;
3467         }
3468         trim_region_to_location (*loc, _("trim to loop"));
3469 }
3470
3471 void
3472 Editor::trim_region_to_punch ()
3473 {
3474         Location* loc = session->locations()->auto_punch_location();
3475         if (!loc) {
3476                 return;
3477         }
3478         trim_region_to_location (*loc, _("trim to punch"));
3479 }
3480 void
3481 Editor::trim_region_to_location (const Location& loc, const char* str)
3482 {
3483         RegionSelection rs;
3484
3485         get_regions_for_action (rs);
3486
3487         begin_reversible_command (str);
3488
3489         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3490                 RegionView* rv = (*x);
3491
3492                 /* require region to span proposed trim */
3493                 switch (rv->region()->coverage (loc.start(), loc.end())) {
3494                 case OverlapInternal:
3495                         break;
3496                 default:
3497                         continue;
3498                 }
3499
3500                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3501                 if (!tav) {
3502                         return;
3503                 }
3504
3505                 float speed = 1.0;
3506                 nframes64_t start;
3507                 nframes64_t end;
3508
3509                 if (tav->get_diskstream() != 0) {
3510                         speed = tav->get_diskstream()->speed();
3511                 }
3512
3513                 start = session_frame_to_track_frame (loc.start(), speed);
3514                 end = session_frame_to_track_frame (loc.end(), speed);
3515
3516                 XMLNode &before = rv->region()->playlist()->get_state();
3517                 rv->region()->trim_to (start, (end - start), this);
3518                 XMLNode &after = rv->region()->playlist()->get_state();
3519                 session->add_command(new MementoCommand<Playlist>(
3520                                 *(rv->region()->playlist()), &before, &after));
3521         }
3522
3523         commit_reversible_command ();
3524 }
3525
3526 void
3527 Editor::trim_region_to_edit_point ()
3528 {
3529         RegionSelection rs;
3530
3531         get_regions_for_action (rs);
3532
3533         nframes64_t where = get_preferred_edit_position();
3534
3535         begin_reversible_command (_("trim region start to edit point"));
3536
3537         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3538                 RegionView* rv = (*x);
3539
3540                 /* require region to cover trim */
3541                 if (!rv->region()->covers (where)) {
3542                         continue;
3543                 }
3544
3545                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3546                 if (!tav) {
3547                         return;
3548                 }
3549
3550                 float speed = 1.0;
3551
3552                 if (tav->get_diskstream() != 0) {
3553                         speed = tav->get_diskstream()->speed();
3554                 }
3555
3556                 XMLNode &before = rv->region()->playlist()->get_state();
3557                 rv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3558                 XMLNode &after = rv->region()->playlist()->get_state();
3559                 session->add_command(new MementoCommand<Playlist>(
3560                                 *(rv->region()->playlist()), &before, &after));
3561         }
3562
3563         commit_reversible_command ();
3564 }
3565
3566 void
3567 Editor::trim_region_from_edit_point ()
3568 {
3569         RegionSelection rs;
3570
3571         get_regions_for_action (rs);
3572
3573         nframes64_t where = get_preferred_edit_position();
3574
3575         begin_reversible_command (_("trim region end to edit point"));
3576
3577         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3578                 RegionView* rv = (*x);
3579
3580                 /* require region to cover trim */
3581                 if (!rv->region()->covers (where)) {
3582                         continue;
3583                 }
3584
3585                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3586                 if (!tav) {
3587                         return;
3588                 }
3589
3590                 float speed = 1.0;
3591
3592                 if (tav->get_diskstream() != 0) {
3593                         speed = tav->get_diskstream()->speed();
3594                 }
3595
3596                 XMLNode &before = rv->region()->playlist()->get_state();
3597                 rv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3598                 XMLNode &after = rv->region()->playlist()->get_state();
3599                 session->add_command(new MementoCommand<Playlist>(
3600                                 *(rv->region()->playlist()), &before, &after));
3601         }
3602
3603         commit_reversible_command ();
3604 }
3605
3606 void
3607 Editor::trim_region_to_previous_region_end ()
3608 {
3609         return trim_to_region(false);
3610 }
3611
3612 void
3613 Editor::trim_region_to_next_region_start ()
3614 {
3615         return trim_to_region(true);
3616 }
3617
3618 void
3619 Editor::trim_to_region(bool forward)
3620 {
3621         RegionSelection rs;
3622
3623         get_regions_for_action (rs);
3624
3625         begin_reversible_command (_("trim to region"));
3626
3627         boost::shared_ptr<Region> next_region;
3628
3629         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3630
3631                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3632
3633                 if (!arv) {
3634                         continue;
3635                 }
3636
3637                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3638
3639                 if (!atav) {
3640                         return;
3641                 }
3642
3643                 float speed = 1.0;
3644
3645                 if (atav->get_diskstream() != 0) {
3646                         speed = atav->get_diskstream()->speed();
3647                 }
3648
3649
3650                 boost::shared_ptr<Region> region = arv->region();
3651                 boost::shared_ptr<Playlist> playlist (region->playlist());
3652
3653                 XMLNode &before = playlist->get_state();
3654
3655                 if(forward){
3656
3657                     next_region = playlist->find_next_region (region->first_frame(), Start, 1);
3658
3659                     if(!next_region){
3660                         continue;
3661                     }
3662
3663                     region->trim_end((nframes64_t) (next_region->first_frame() * speed), this);
3664                     arv->region_changed (Change (LengthChanged));
3665                 }
3666                 else {
3667
3668                     next_region = playlist->find_next_region (region->first_frame(), Start, 0);
3669
3670                     if(!next_region){
3671                         continue;
3672                     }
3673
3674                     region->trim_front((nframes64_t) ((next_region->last_frame() + 1) * speed), this);
3675                     arv->region_changed (Change (LengthChanged|PositionChanged|StartChanged));
3676                 }
3677
3678                 XMLNode &after = playlist->get_state();
3679                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
3680         }
3681
3682         commit_reversible_command ();
3683 }
3684
3685 void
3686 Editor::unfreeze_route ()
3687 {
3688         if (clicked_routeview == 0 || !clicked_routeview->is_track()) {
3689                 return;
3690         }
3691
3692         clicked_routeview->track()->unfreeze ();
3693 }
3694
3695 void*
3696 Editor::_freeze_thread (void* arg)
3697 {
3698         PBD::notify_gui_about_thread_creation (pthread_self(), X_("Freeze"));
3699         return static_cast<Editor*>(arg)->freeze_thread ();
3700 }
3701
3702 void*
3703 Editor::freeze_thread ()
3704 {
3705         clicked_routeview->audio_track()->freeze (*current_interthread_info);
3706         current_interthread_info->done = true;
3707         return 0;
3708 }
3709
3710 gint
3711 Editor::freeze_progress_timeout (void */*arg*/)
3712 {
3713         interthread_progress_bar.set_fraction (current_interthread_info->progress);
3714         return !(current_interthread_info->done || current_interthread_info->cancel);
3715 }
3716
3717 void
3718 Editor::freeze_route ()
3719 {
3720         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3721                 return;
3722         }
3723
3724         InterThreadInfo itt;
3725
3726         if (interthread_progress_window == 0) {
3727                 build_interthread_progress_window ();
3728         }
3729
3730         interthread_progress_window->set_title (_("Freeze"));
3731         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3732         interthread_progress_window->show_all ();
3733         interthread_progress_bar.set_fraction (0.0f);
3734         interthread_progress_label.set_text ("");
3735         interthread_cancel_label.set_text (_("Cancel Freeze"));
3736         current_interthread_info = &itt;
3737
3738         interthread_progress_connection =
3739           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3740
3741         itt.done = false;
3742         itt.cancel = false;
3743         itt.progress = 0.0f;
3744
3745         pthread_attr_t attr;
3746         pthread_attr_init(&attr);
3747         pthread_attr_setstacksize(&attr, 500000);
3748
3749         pthread_create_and_store (X_("freezer"), &itt.thread, &attr, _freeze_thread, this);
3750
3751         pthread_attr_destroy(&attr);
3752
3753         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3754
3755         while (!itt.done && !itt.cancel) {
3756                 gtk_main_iteration ();
3757         }
3758
3759         interthread_progress_connection.disconnect ();
3760         interthread_progress_window->hide_all ();
3761         current_interthread_info = 0;
3762         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3763 }
3764
3765 void
3766 Editor::bounce_range_selection (bool replace, bool enable_processing)
3767 {
3768         if (selection->time.empty()) {
3769                 return;
3770         }
3771
3772         TrackSelection views = selection->tracks;
3773
3774         nframes64_t start = selection->time[clicked_selection].start;
3775         nframes64_t end = selection->time[clicked_selection].end;
3776         nframes64_t cnt = end - start + 1;
3777
3778         begin_reversible_command (_("bounce range"));
3779
3780         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3781
3782                 RouteTimeAxisView* rtv;
3783
3784                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
3785                         continue;
3786                 }
3787
3788                 boost::shared_ptr<Playlist> playlist;
3789
3790                 if ((playlist = rtv->playlist()) == 0) {
3791                         return;
3792                 }
3793
3794                 InterThreadInfo itt;
3795
3796                 itt.done = false;
3797                 itt.cancel = false;
3798                 itt.progress = false;
3799
3800                 XMLNode &before = playlist->get_state();
3801                 boost::shared_ptr<Region> r = rtv->track()->bounce_range (start, start+cnt, itt, enable_processing);
3802
3803                 if (replace) {
3804                         list<AudioRange> ranges;
3805                         ranges.push_back (AudioRange (start, start+cnt, 0));
3806                         playlist->cut (ranges); // discard result
3807                         playlist->add_region (r, start);
3808                 }
3809
3810                 XMLNode &after = playlist->get_state();
3811                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3812         }
3813
3814         commit_reversible_command ();
3815 }
3816
3817 /** Cut selected regions, automation points or a time range */
3818 void
3819 Editor::cut ()
3820 {
3821         cut_copy (Cut);
3822 }
3823
3824 /** Copy selected regions, automation points or a time range */
3825 void
3826 Editor::copy ()
3827 {
3828         cut_copy (Copy);
3829 }
3830
3831
3832 /** @return true if a Cut, Copy or Clear is possible */
3833 bool
3834 Editor::can_cut_copy () const
3835 {
3836         switch (current_mouse_mode()) {
3837
3838         case MouseObject:
3839                 if (!selection->regions.empty() || !selection->points.empty()) {
3840                         return true;
3841                 }
3842                 break;
3843
3844         case MouseRange:
3845                 if (!selection->time.empty()) {
3846                         return true;
3847                 }
3848                 break;
3849
3850         default:
3851                 break;
3852         }
3853
3854         return false;
3855 }
3856
3857
3858 /** Cut, copy or clear selected regions, automation points or a time range.
3859  * @param op Operation (Cut, Copy or Clear)
3860  */
3861 void
3862 Editor::cut_copy (CutCopyOp op)
3863 {
3864         /* only cancel selection if cut/copy is successful.*/
3865
3866         string opname;
3867
3868         switch (op) {
3869         case Cut:
3870                 opname = _("cut");
3871                 break;
3872         case Copy:
3873                 opname = _("copy");
3874                 break;
3875         case Clear:
3876                 opname = _("clear");
3877                 break;
3878         }
3879
3880         /* if we're deleting something, and the mouse is still pressed,
3881            the thing we started a drag for will be gone when we release
3882            the mouse button(s). avoid this. see part 2 at the end of
3883            this function.
3884         */
3885
3886         if (op == Cut || op == Clear) {
3887                 if (_drag) {
3888                         _drag->item()->ungrab (0);
3889                         delete _drag;
3890                         _drag = 0;
3891                 }
3892         }
3893
3894         cut_buffer->clear ();
3895
3896         if (entered_marker) {
3897
3898                 /* cut/delete op while pointing at a marker */
3899
3900                 bool ignored;
3901                 Location* loc = find_location_from_marker (entered_marker, ignored);
3902
3903                 if (session && loc) {
3904                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3905                 }
3906
3907                 break_drag ();
3908                 delete _drag;
3909                 _drag = 0;
3910
3911                 return;
3912         }
3913
3914         if (internal_editing()) {
3915
3916                 switch (current_mouse_mode()) {
3917                 case MouseObject:
3918                 case MouseRange:
3919                         cut_copy_midi (op);
3920                         break;
3921                 default:
3922                         break;
3923                 }
3924
3925         } else {
3926
3927                 RegionSelection rs;
3928
3929                 /* we only want to cut regions if some are selected */
3930
3931                 if (!selection->regions.empty()) {
3932                         get_regions_for_action (rs, false, false);
3933                 }
3934
3935                 switch (current_mouse_mode()) {
3936                 case MouseObject:
3937                         if (!rs.empty() || !selection->points.empty()) {
3938
3939                                 begin_reversible_command (opname + _(" objects"));
3940
3941                                 if (!rs.empty()) {
3942                                         cut_copy_regions (op, rs);
3943
3944                                         if (op == Cut) {
3945                                                 selection->clear_regions ();
3946                                         }
3947                                 }
3948
3949                                 if (!selection->points.empty()) {
3950                                         cut_copy_points (op);
3951
3952                                         if (op == Cut) {
3953                                                 selection->clear_points ();
3954                                         }
3955                                 }
3956
3957                                 commit_reversible_command ();
3958                                 break; // terminate case statement here
3959                         }
3960                         if (!selection->time.empty()) {
3961                                 /* don't cause suprises */
3962                                 break;
3963                         }
3964                         // fall thru if there was nothing selected
3965
3966                 case MouseRange:
3967                         if (selection->time.empty()) {
3968                                 nframes64_t start, end;
3969                                 if (!get_edit_op_range (start, end)) {
3970                                         return;
3971                                 }
3972                                 selection->set ((TimeAxisView*) 0, start, end);
3973                         }
3974
3975                         begin_reversible_command (opname + _(" range"));
3976                         cut_copy_ranges (op);
3977                         commit_reversible_command ();
3978
3979                         if (op == Cut) {
3980                                 selection->clear_time ();
3981                         }
3982
3983                         break;
3984
3985                 default:
3986                         break;
3987                 }
3988         }
3989
3990         if (op == Cut || op == Clear) {
3991                 break_drag ();
3992                 delete _drag;
3993                 _drag = 0;
3994         }
3995 }
3996
3997 /** Cut, copy or clear selected automation points.
3998  * @param op Operation (Cut, Copy or Clear)
3999  */
4000 void
4001 Editor::cut_copy_points (CutCopyOp op)
4002 {
4003         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4004
4005                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4006
4007                 if (atv) {
4008                         atv->cut_copy_clear_objects (selection->points, op);
4009                 }
4010         }
4011 }
4012
4013 /** Cut, copy or clear selected automation points.
4014  * @param op Operation (Cut, Copy or Clear)
4015  */
4016 void
4017 Editor::cut_copy_midi (CutCopyOp op)
4018 {
4019         for (MidiRegionSelection::iterator i = selection->midi_regions.begin(); i != selection->midi_regions.end(); ++i) {
4020                 MidiRegionView* mrv = *i;
4021                 mrv->cut_copy_clear (op);
4022         }
4023 }
4024
4025 struct PlaylistState {
4026     boost::shared_ptr<Playlist> playlist;
4027     XMLNode*  before;
4028 };
4029
4030 struct lt_playlist {
4031     bool operator () (const PlaylistState& a, const PlaylistState& b) {
4032             return a.playlist < b.playlist;
4033     }
4034 };
4035
4036 struct PlaylistMapping {
4037     TimeAxisView* tv;
4038     boost::shared_ptr<Playlist> pl;
4039
4040     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
4041 };
4042
4043 /** Remove `clicked_regionview' */
4044 void
4045 Editor::remove_clicked_region ()
4046 {
4047         if (clicked_routeview == 0 || clicked_regionview == 0) {
4048                 return;
4049         }
4050
4051         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
4052
4053         begin_reversible_command (_("remove region"));
4054         XMLNode &before = playlist->get_state();
4055         playlist->remove_region (clicked_regionview->region());
4056         XMLNode &after = playlist->get_state();
4057         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4058         commit_reversible_command ();
4059 }
4060
4061
4062 /** Remove the selected regions */
4063 void
4064 Editor::remove_selected_regions ()
4065 {
4066         RegionSelection rs;
4067         get_regions_for_action (rs);
4068
4069         if (!session) {
4070                 return;
4071         }
4072
4073         if (rs.empty()) {
4074                 return;
4075         }
4076
4077         begin_reversible_command (_("remove region"));
4078
4079         list<boost::shared_ptr<Region> > regions_to_remove;
4080
4081         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4082                 // we can't just remove the region(s) in this loop because
4083                 // this removes them from the RegionSelection, and they thus
4084                 // disappear from underneath the iterator, and the ++i above
4085                 // SEGVs in a puzzling fashion.
4086
4087                 // so, first iterate over the regions to be removed from rs and
4088                 // add them to the regions_to_remove list, and then
4089                 // iterate over the list to actually remove them.
4090
4091                 regions_to_remove.push_back ((*i)->region());
4092         }
4093
4094         vector<PlaylistState> playlists;
4095
4096         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
4097
4098                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
4099
4100                 if (!playlist) {
4101                         // is this check necessary?
4102                         continue;
4103                 }
4104
4105                 vector<PlaylistState>::iterator i;
4106
4107                 //only take state if this is a new playlist.
4108                 for (i = playlists.begin(); i != playlists.end(); ++i) {
4109                         if ((*i).playlist == playlist) {
4110                                 break;
4111                         }
4112                 }
4113
4114                 if (i == playlists.end()) {
4115
4116                         PlaylistState before;
4117                         before.playlist = playlist;
4118                         before.before = &playlist->get_state();
4119
4120                         playlist->freeze ();
4121                         playlists.push_back(before);
4122                 }
4123
4124                 playlist->remove_region (*rl);
4125         }
4126
4127         vector<PlaylistState>::iterator pl;
4128
4129         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
4130                 (*pl).playlist->thaw ();
4131                 session->add_command(new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4132         }
4133
4134         commit_reversible_command ();
4135 }
4136
4137 /** Cut, copy or clear selected regions.
4138  * @param op Operation (Cut, Copy or Clear)
4139  */
4140 void
4141 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
4142 {
4143         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
4144            a map when we want ordered access to both elements. i think.
4145         */
4146
4147         vector<PlaylistMapping> pmap;
4148
4149         nframes64_t first_position = max_frames;
4150
4151         set<PlaylistState, lt_playlist> freezelist;
4152         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
4153
4154         /* get ordering correct before we cut/copy */
4155
4156         rs.sort_by_position_and_track ();
4157
4158         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4159
4160                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
4161
4162                 if (op == Cut || op == Clear) {
4163                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4164
4165                         if (pl) {
4166                                 set<PlaylistState, lt_playlist>::iterator fl;
4167
4168                                 //only take state if this is a new playlist.
4169                                 for (fl = freezelist.begin(); fl != freezelist.end(); ++fl) {
4170                                         if ((*fl).playlist == pl) {
4171                                                 break;
4172                                         }
4173                                 }
4174
4175                                 if (fl == freezelist.end()) {
4176                                         PlaylistState before;
4177                                         before.playlist = pl;
4178                                         before.before = &pl->get_state();
4179                                         pl->freeze ();
4180                                         insert_result = freezelist.insert (before);
4181                                 }
4182                         }
4183                 }
4184
4185                 TimeAxisView* tv = &(*x)->get_trackview();
4186                 vector<PlaylistMapping>::iterator z;
4187
4188                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4189                         if ((*z).tv == tv) {
4190                                 break;
4191                         }
4192                 }
4193
4194                 if (z == pmap.end()) {
4195                         pmap.push_back (PlaylistMapping (tv));
4196                 }
4197         }
4198
4199         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
4200
4201                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4202
4203                 if (!pl) {
4204                         /* impossible, but this handles it for the future */
4205                         continue;
4206                 }
4207
4208                 TimeAxisView& tv = (*x)->get_trackview();
4209                 boost::shared_ptr<Playlist> npl;
4210                 RegionSelection::iterator tmp;
4211
4212                 tmp = x;
4213                 ++tmp;
4214
4215                 vector<PlaylistMapping>::iterator z;
4216
4217                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4218                         if ((*z).tv == &tv) {
4219                                 break;
4220                         }
4221                 }
4222
4223                 assert (z != pmap.end());
4224
4225                 if (!(*z).pl) {
4226                         npl = PlaylistFactory::create (pl->data_type(), *session, "cutlist", true);
4227                         npl->freeze();
4228                         (*z).pl = npl;
4229                 } else {
4230                         npl = (*z).pl;
4231                 }
4232
4233                 boost::shared_ptr<Region> r = (*x)->region();
4234                 boost::shared_ptr<Region> _xx;
4235
4236                 assert (r != 0);
4237
4238                 switch (op) {
4239                 case Cut:
4240                         _xx = RegionFactory::create (r);
4241                         npl->add_region (_xx, r->position() - first_position);
4242                         pl->remove_region (r);
4243                         break;
4244
4245                 case Copy:
4246                         /* copy region before adding, so we're not putting same object into two different playlists */
4247                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
4248                         break;
4249
4250                 case Clear:
4251                         pl->remove_region (r);
4252                         break;
4253                 }
4254
4255                 x = tmp;
4256         }
4257
4258         list<boost::shared_ptr<Playlist> > foo;
4259
4260         /* the pmap is in the same order as the tracks in which selected regions occured */
4261
4262         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4263                 (*i).pl->thaw();
4264                 foo.push_back ((*i).pl);
4265         }
4266
4267
4268         if (!foo.empty()) {
4269                 cut_buffer->set (foo);
4270         }
4271
4272         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4273                 (*pl).playlist->thaw ();
4274                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4275         }
4276 }
4277
4278 void
4279 Editor::cut_copy_ranges (CutCopyOp op)
4280 {
4281         TrackSelection* ts;
4282         TrackSelection entered;
4283
4284         if (selection->tracks.empty()) {
4285                 if (!entered_track) {
4286                         return;
4287                 }
4288                 entered.push_back (entered_track);
4289                 ts = &entered;
4290         } else {
4291                 ts = &selection->tracks;
4292         }
4293
4294         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
4295                 (*i)->cut_copy_clear (*selection, op);
4296         }
4297 }
4298
4299 void
4300 Editor::paste (float times)
4301 {
4302         paste_internal (get_preferred_edit_position(), times);
4303 }
4304
4305 void
4306 Editor::mouse_paste ()
4307 {
4308         nframes64_t where;
4309         bool ignored;
4310
4311         if (!mouse_frame (where, ignored)) {
4312                 return;
4313         }
4314
4315         snap_to (where);
4316         paste_internal (where, 1);
4317 }
4318
4319 void
4320 Editor::paste_internal (nframes64_t position, float times)
4321 {
4322         bool commit = false;
4323
4324         if (internal_editing()) {
4325                 if (cut_buffer->midi_notes.empty()) {
4326                         return;
4327                 }
4328         } else {
4329                 if (cut_buffer->empty()) {
4330                         return;
4331                 }
4332         }
4333
4334         if (position == max_frames) {
4335                 position = get_preferred_edit_position();
4336         }
4337
4338         begin_reversible_command (_("paste"));
4339
4340         TrackSelection ts;
4341         TrackSelection::iterator i;
4342         size_t nth;
4343
4344         /* get everything in the correct order */
4345
4346         if (!selection->tracks.empty()) {
4347                 sort_track_selection ();
4348                 ts = selection->tracks;
4349         } else if (entered_track) {
4350                 ts.push_back (entered_track);
4351         }
4352
4353         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4354
4355                 /* undo/redo is handled by individual tracks/regions */
4356
4357                 if (internal_editing()) {
4358
4359                         RegionSelection rs;
4360                         RegionSelection::iterator r;
4361                         MidiNoteSelection::iterator cb;
4362
4363                         get_regions_at (rs, position, ts);
4364
4365                         for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
4366                              cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
4367                                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
4368                                 if (mrv) {
4369                                         mrv->paste (position, times, **cb);
4370                                         ++cb;
4371                                 }
4372                         }
4373
4374                 } else {
4375
4376                         if ((*i)->paste (position, times, *cut_buffer, nth)) {
4377                                 commit = true;
4378                         }
4379                 }
4380         }
4381
4382         if (commit) {
4383                 commit_reversible_command ();
4384         }
4385 }
4386
4387 void
4388 Editor::paste_named_selection (float times)
4389 {
4390         TrackSelection::iterator t;
4391
4392         Glib::RefPtr<TreeSelection> selected = named_selection_display.get_selection();
4393
4394         if (selected->count_selected_rows() != 1 || selection->tracks.empty()) {
4395                 return;
4396         }
4397
4398         TreeModel::iterator i = selected->get_selected();
4399         NamedSelection* ns = (*i)[named_selection_columns.selection];
4400
4401         list<boost::shared_ptr<Playlist> >::iterator chunk;
4402         list<boost::shared_ptr<Playlist> >::iterator tmp;
4403
4404         chunk = ns->playlists.begin();
4405
4406         begin_reversible_command (_("paste chunk"));
4407
4408         sort_track_selection ();
4409
4410         for (t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
4411
4412                 RouteTimeAxisView* rtv;
4413                 boost::shared_ptr<Playlist> pl;
4414                 boost::shared_ptr<AudioPlaylist> apl;
4415
4416                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*t)) == 0) {
4417                         continue;
4418                 }
4419
4420                 if ((pl = rtv->playlist()) == 0) {
4421                         continue;
4422                 }
4423
4424                 if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
4425                         continue;
4426                 }
4427
4428                 tmp = chunk;
4429                 ++tmp;
4430
4431                 XMLNode &before = apl->get_state();
4432                 apl->paste (*chunk, get_preferred_edit_position(), times);
4433                 session->add_command(new MementoCommand<AudioPlaylist>(*apl, &before, &apl->get_state()));
4434
4435                 if (tmp != ns->playlists.end()) {
4436                         chunk = tmp;
4437                 }
4438         }
4439
4440         commit_reversible_command();
4441 }
4442
4443 void
4444 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4445 {
4446         boost::shared_ptr<Playlist> playlist;
4447         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4448         RegionSelection foo;
4449
4450         begin_reversible_command (_("duplicate region"));
4451
4452         selection->clear_regions ();
4453
4454         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4455
4456                 boost::shared_ptr<Region> r ((*i)->region());
4457
4458                 TimeAxisView& tv = (*i)->get_time_axis_view();
4459                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4460                 latest_regionviews.clear ();
4461                 sigc::connection c = rtv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4462
4463                 playlist = (*i)->region()->playlist();
4464                 XMLNode &before = playlist->get_state();
4465                 playlist->duplicate (r, r->last_frame(), times);
4466                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4467
4468                 c.disconnect ();
4469
4470                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4471         }
4472
4473         commit_reversible_command ();
4474
4475         if (!foo.empty()) {
4476                 selection->set (foo);
4477         }
4478 }
4479
4480 void
4481 Editor::duplicate_selection (float times)
4482 {
4483         if (selection->time.empty() || selection->tracks.empty()) {
4484                 return;
4485         }
4486
4487         boost::shared_ptr<Playlist> playlist;
4488         vector<boost::shared_ptr<Region> > new_regions;
4489         vector<boost::shared_ptr<Region> >::iterator ri;
4490
4491         create_region_from_selection (new_regions);
4492
4493         if (new_regions.empty()) {
4494                 return;
4495         }
4496
4497         begin_reversible_command (_("duplicate selection"));
4498
4499         ri = new_regions.begin();
4500
4501         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4502                 if ((playlist = (*i)->playlist()) == 0) {
4503                         continue;
4504                 }
4505                 XMLNode &before = playlist->get_state();
4506                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4507                 XMLNode &after = playlist->get_state();
4508                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4509
4510                 ++ri;
4511                 if (ri == new_regions.end()) {
4512                         --ri;
4513                 }
4514         }
4515
4516         commit_reversible_command ();
4517 }
4518
4519 void
4520 Editor::reset_point_selection ()
4521 {
4522         /* reset all selected points to the relevant default value */
4523
4524         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4525
4526                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4527
4528                 if (atv) {
4529                         atv->reset_objects (selection->points);
4530                 }
4531         }
4532 }
4533
4534 void
4535 Editor::center_playhead ()
4536 {
4537         float page = _canvas_width * frames_per_unit;
4538         center_screen_internal (playhead_cursor->current_frame, page);
4539 }
4540
4541 void
4542 Editor::center_edit_point ()
4543 {
4544         float page = _canvas_width * frames_per_unit;
4545         center_screen_internal (get_preferred_edit_position(), page);
4546 }
4547
4548 void
4549 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4550 {
4551         begin_reversible_command (_("clear playlist"));
4552         XMLNode &before = playlist->get_state();
4553         playlist->clear ();
4554         XMLNode &after = playlist->get_state();
4555         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4556         commit_reversible_command ();
4557 }
4558
4559 void
4560 Editor::nudge_track (bool use_edit, bool forwards)
4561 {
4562         boost::shared_ptr<Playlist> playlist;
4563         nframes64_t distance;
4564         nframes64_t next_distance;
4565         nframes64_t start;
4566
4567         if (use_edit) {
4568                 start = get_preferred_edit_position();
4569         } else {
4570                 start = 0;
4571         }
4572
4573         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4574                 return;
4575         }
4576
4577         if (selection->tracks.empty()) {
4578                 return;
4579         }
4580
4581         begin_reversible_command (_("nudge track"));
4582
4583         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4584
4585                 if ((playlist = (*i)->playlist()) == 0) {
4586                         continue;
4587                 }
4588
4589                 XMLNode &before = playlist->get_state();
4590                 playlist->nudge_after (start, distance, forwards);
4591                 XMLNode &after = playlist->get_state();
4592                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4593         }
4594
4595         commit_reversible_command ();
4596 }
4597
4598 void
4599 Editor::remove_last_capture ()
4600 {
4601         vector<string> choices;
4602         string prompt;
4603
4604         if (!session) {
4605                 return;
4606         }
4607
4608         if (Config->get_verify_remove_last_capture()) {
4609                 prompt  = _("Do you really want to destroy the last capture?"
4610                             "\n(This is destructive and cannot be undone)");
4611
4612                 choices.push_back (_("No, do nothing."));
4613                 choices.push_back (_("Yes, destroy it."));
4614
4615                 Gtkmm2ext::Choice prompter (prompt, choices);
4616
4617                 if (prompter.run () == 1) {
4618                         session->remove_last_capture ();
4619                 }
4620
4621         } else {
4622                 session->remove_last_capture();
4623         }
4624 }
4625
4626 void
4627 Editor::normalize_region ()
4628 {
4629         if (!session) {
4630                 return;
4631         }
4632
4633         RegionSelection rs;
4634         get_regions_for_action (rs);
4635
4636         if (rs.empty()) {
4637                 return;
4638         }
4639
4640         Dialog dialog (rs.size() > 1 ? _("Normalize regions") : _("Normalize region"));
4641         HBox hbox;
4642         hbox.pack_start (*manage (new Label (_("Normalize to:"))));
4643         SpinButton spin (0.2, 2);
4644         spin.set_range (-112, 0);
4645         spin.set_increments (0.1, 1);
4646         spin.set_value (0);
4647         hbox.pack_start (spin);
4648         spin.set_value (_last_normalization_value);
4649         hbox.pack_start (*manage (new Label (_("dbFS"))));
4650         hbox.show_all ();
4651         dialog.get_vbox()->pack_start (hbox);
4652         dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
4653         dialog.add_button (_("Normalize"), RESPONSE_ACCEPT);
4654
4655         if (dialog.run () == RESPONSE_CANCEL) {
4656                 return;
4657         }
4658
4659         begin_reversible_command (_("normalize"));
4660
4661         track_canvas->get_window()->set_cursor (*wait_cursor);
4662         gdk_flush ();
4663
4664         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4665                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4666                 if (!arv)
4667                         continue;
4668                 XMLNode &before = arv->region()->get_state();
4669                 arv->audio_region()->normalize_to (spin.get_value());
4670                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4671         }
4672
4673         commit_reversible_command ();
4674         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4675
4676         _last_normalization_value = spin.get_value ();
4677 }
4678
4679
4680 void
4681 Editor::reset_region_scale_amplitude ()
4682 {
4683         if (!session) {
4684                 return;
4685         }
4686
4687         RegionSelection rs;
4688
4689         get_regions_for_action (rs);
4690
4691         if (rs.empty()) {
4692                 return;
4693         }
4694
4695         begin_reversible_command ("reset gain");
4696
4697         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4698                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4699                 if (!arv)
4700                         continue;
4701                 XMLNode &before = arv->region()->get_state();
4702                 arv->audio_region()->set_scale_amplitude (1.0f);
4703                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4704         }
4705
4706         commit_reversible_command ();
4707 }
4708
4709 void
4710 Editor::adjust_region_scale_amplitude (bool up)
4711 {
4712         if (!session) {
4713                 return;
4714         }
4715
4716         RegionSelection rs;
4717
4718         get_regions_for_action (rs);
4719
4720         if (rs.empty()) {
4721                 return;
4722         }
4723
4724         begin_reversible_command ("denormalize");
4725
4726         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4727                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4728                 if (!arv)
4729                         continue;
4730                 XMLNode &before = arv->region()->get_state();
4731
4732                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4733
4734                 if (up) {
4735                         fraction += 0.05;
4736                         fraction = min (fraction, 1.0);
4737                 } else {
4738                         fraction -= 0.05;
4739                         fraction = max (fraction, 0.0);
4740                 }
4741
4742                 if (!up && fraction <= 0) {
4743                         continue;
4744                 }
4745
4746                 fraction = slider_position_to_gain (fraction);
4747
4748                 if (up && fraction >= 2.0) {
4749                         continue;
4750                 }
4751
4752                 arv->audio_region()->set_scale_amplitude (fraction);
4753                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4754         }
4755
4756         commit_reversible_command ();
4757 }
4758
4759
4760 void
4761 Editor::reverse_region ()
4762 {
4763         if (!session) {
4764                 return;
4765         }
4766
4767         Reverse rev (*session);
4768         apply_filter (rev, _("reverse regions"));
4769 }
4770
4771 void
4772 Editor::strip_region_silence ()
4773 {
4774         if (!session) {
4775                 return;
4776         }
4777
4778         RegionSelection rs;
4779         get_regions_for_action (rs);
4780
4781         if (rs.empty()) {
4782                 return;
4783         }
4784
4785         std::list<boost::shared_ptr<AudioRegion> > ar;
4786
4787         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4788                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*i);
4789                 if (arv) {
4790                         ar.push_back (arv->audio_region ());
4791                 }
4792         }
4793
4794         StripSilenceDialog d (ar);
4795         int const r = d.run ();
4796
4797         if (r == Gtk::RESPONSE_OK) {
4798                 StripSilence s (*session, d.threshold (), d.minimum_length (), d.fade_length ());
4799                 apply_filter (s, _("strip silence"));
4800         }
4801 }
4802
4803 Command*
4804 Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv)
4805 {
4806         Evoral::Sequence<Evoral::MusicalTime>::Notes selected;
4807         mrv.selection_as_notelist (selected);
4808
4809         vector<Evoral::Sequence<Evoral::MusicalTime>::Notes> v;
4810         v.push_back (selected);
4811
4812         return op (mrv.midi_region()->model(), v);
4813 }
4814
4815 void
4816 Editor::apply_midi_note_edit_op (MidiOperator& op)
4817 {
4818         RegionSelection rs;
4819         Command* cmd;
4820
4821         get_regions_for_action (rs);
4822
4823         if (rs.empty()) {
4824                 return;
4825         }
4826
4827         begin_reversible_command (op.name ());
4828
4829         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4830                 RegionSelection::iterator tmp = r;
4831                 ++tmp;
4832
4833                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4834
4835                 if (mrv) {
4836                         cmd = apply_midi_note_edit_op_to_region (op, *mrv);
4837                         if (cmd) {
4838                                 (*cmd)();
4839                                 session->add_command (cmd);
4840                         }
4841                 }
4842
4843                 r = tmp;
4844         }
4845
4846         commit_reversible_command ();
4847         rs.clear ();
4848 }
4849
4850 void
4851 Editor::quantize_region ()
4852 {
4853         if (!session) {
4854                 return;
4855         }
4856
4857         QuantizeDialog* qd = new QuantizeDialog (*this);
4858
4859         qd->present ();
4860         qd->run ();
4861         qd->hide ();
4862
4863         Quantize quant (*session, Plain,
4864                         qd->snap_start(), qd->snap_end(),
4865                         qd->start_grid_size(), qd->end_grid_size(),
4866                         qd->strength(), qd->swing(), qd->threshold());
4867
4868         apply_midi_note_edit_op (quant);
4869 }
4870
4871 void
4872 Editor::apply_filter (Filter& filter, string command)
4873 {
4874         RegionSelection rs;
4875
4876         get_regions_for_action (rs);
4877
4878         if (rs.empty()) {
4879                 return;
4880         }
4881
4882         begin_reversible_command (command);
4883
4884         track_canvas->get_window()->set_cursor (*wait_cursor);
4885         gdk_flush ();
4886
4887         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4888                 RegionSelection::iterator tmp = r;
4889                 ++tmp;
4890
4891                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4892                 if (arv) {
4893                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4894
4895                         if (arv->audio_region()->apply (filter) == 0) {
4896
4897                                 XMLNode &before = playlist->get_state();
4898
4899                                 if (filter.results.empty ()) {
4900
4901                                         /* no regions returned; remove the old one */
4902                                         playlist->remove_region (arv->region ());
4903
4904                                 } else {
4905
4906                                         std::vector<boost::shared_ptr<Region> >::iterator res = filter.results.begin ();
4907
4908                                         /* first region replaces the old one */
4909                                         playlist->replace_region (arv->region(), *res, (*res)->position());
4910                                         ++res;
4911
4912                                         /* add the rest */
4913                                         while (res != filter.results.end()) {
4914                                                 playlist->add_region (*res, (*res)->position());
4915                                                 ++res;
4916                                         }
4917
4918                                 }
4919
4920                                 XMLNode &after = playlist->get_state();
4921                                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4922                         } else {
4923                                 goto out;
4924                         }
4925                 }
4926
4927                 r = tmp;
4928         }
4929
4930         commit_reversible_command ();
4931         rs.clear ();
4932
4933   out:
4934         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4935 }
4936
4937 void
4938 Editor::region_selection_op (void (Region::*pmf)(void))
4939 {
4940         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4941                 Region* region = (*i)->region().get();
4942                 (region->*pmf)();
4943         }
4944 }
4945
4946
4947 void
4948 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4949 {
4950         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4951                 Region* region = (*i)->region().get();
4952                 (region->*pmf)(arg);
4953         }
4954 }
4955
4956 void
4957 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4958 {
4959         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4960                 Region* region = (*i)->region().get();
4961                 (region->*pmf)(yn);
4962         }
4963 }
4964
4965 void
4966 Editor::external_edit_region ()
4967 {
4968         /* more to come */
4969 }
4970
4971 void
4972 Editor::brush (nframes64_t pos)
4973 {
4974         RegionSelection sel;
4975         RegionSelection rs;
4976
4977         get_regions_for_action (rs);
4978
4979         snap_to (pos);
4980
4981         if (rs.empty()) {
4982                 return;
4983         }
4984
4985         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4986                 mouse_brush_insert_region ((*i), pos);
4987         }
4988 }
4989
4990 void
4991 Editor::reset_region_gain_envelopes ()
4992 {
4993         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4994
4995         if (!session || rs.empty()) {
4996                 return;
4997         }
4998
4999         session->begin_reversible_command (_("reset region gain"));
5000
5001         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5002                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5003                 if (arv) {
5004                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
5005                         XMLNode& before (alist->get_state());
5006
5007                         arv->audio_region()->set_default_envelope ();
5008                         session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
5009                 }
5010         }
5011
5012         session->commit_reversible_command ();
5013 }
5014
5015 void
5016 Editor::toggle_gain_envelope_visibility ()
5017 {
5018         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5019
5020         if (!session || rs.empty()) {
5021                 return;
5022         }
5023
5024         session->begin_reversible_command (_("region gain envelope visible"));
5025
5026         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5027                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5028                 if (arv) {
5029                         XMLNode &before = arv->region()->get_state ();
5030                         arv->set_envelope_visible (!arv->envelope_visible());
5031                         XMLNode &after = arv->region()->get_state ();
5032                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
5033                 }
5034         }
5035
5036         session->commit_reversible_command ();
5037 }
5038
5039 void
5040 Editor::toggle_gain_envelope_active ()
5041 {
5042         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5043
5044         if (!session || rs.empty()) {
5045                 return;
5046         }
5047
5048         session->begin_reversible_command (_("region gain envelope active"));
5049
5050         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5051                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5052                 if (arv) {
5053                         XMLNode &before = arv->region()->get_state ();
5054                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
5055                         XMLNode &after = arv->region()->get_state ();
5056                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
5057                 }
5058         }
5059
5060         session->commit_reversible_command ();
5061 }
5062
5063 void
5064 Editor::toggle_region_lock ()
5065 {
5066         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5067
5068         if (!session || rs.empty()) {
5069                 return;
5070         }
5071
5072         session->begin_reversible_command (_("region lock"));
5073
5074         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5075                 XMLNode &before = (*i)->region()->get_state ();
5076                 (*i)->region()->set_locked (!(*i)->region()->locked());
5077                 XMLNode &after = (*i)->region()->get_state ();
5078                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5079         }
5080
5081         session->commit_reversible_command ();
5082 }
5083
5084 void
5085 Editor::set_region_lock_style (Region::PositionLockStyle ps)
5086 {
5087         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5088
5089         if (!session || rs.empty()) {
5090                 return;
5091         }
5092
5093         session->begin_reversible_command (_("region lock style"));
5094
5095         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5096                 XMLNode &before = (*i)->region()->get_state ();
5097                 (*i)->region()->set_position_lock_style (ps);
5098                 XMLNode &after = (*i)->region()->get_state ();
5099                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5100         }
5101
5102         session->commit_reversible_command ();
5103 }
5104
5105
5106 void
5107 Editor::toggle_region_mute ()
5108 {
5109         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5110
5111         if (!session || rs.empty()) {
5112                 return;
5113         }
5114
5115         session->begin_reversible_command (_("region mute"));
5116
5117         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5118                 XMLNode &before = (*i)->region()->get_state ();
5119                 (*i)->region()->set_muted (!(*i)->region()->muted());
5120                 XMLNode &after = (*i)->region()->get_state ();
5121                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5122         }
5123
5124         session->commit_reversible_command ();
5125 }
5126
5127 void
5128 Editor::toggle_region_opaque ()
5129 {
5130         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5131
5132         if (!session || rs.empty()) {
5133                 return;
5134         }
5135
5136         session->begin_reversible_command (_("region opacity"));
5137
5138         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5139                 XMLNode &before = (*i)->region()->get_state ();
5140                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
5141                 XMLNode &after = (*i)->region()->get_state ();
5142                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5143         }
5144
5145         session->commit_reversible_command ();
5146 }
5147
5148 void
5149 Editor::toggle_record_enable ()
5150 {
5151         bool new_state = false;
5152         bool first = true;
5153         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5154                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5155                 if (!rtav)
5156                         continue;
5157                 if (!rtav->is_track())
5158                         continue;
5159
5160                 if (first) {
5161                         new_state = !rtav->track()->record_enabled();
5162                         first = false;
5163                 }
5164
5165                 rtav->track()->set_record_enable(new_state, this);
5166         }
5167 }
5168
5169
5170 void
5171 Editor::set_fade_length (bool in)
5172 {
5173         RegionSelection rs;
5174
5175         get_regions_for_action (rs, true);
5176
5177         if (rs.empty()) {
5178                 return;
5179         }
5180
5181         /* we need a region to measure the offset from the start */
5182
5183         RegionView* rv = rs.front ();
5184
5185         nframes64_t pos = get_preferred_edit_position();
5186         nframes64_t len;
5187         char* cmd;
5188
5189         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
5190                 /* edit point is outside the relevant region */
5191                 return;
5192         }
5193
5194         if (in) {
5195                 if (pos <= rv->region()->position()) {
5196                         /* can't do it */
5197                         return;
5198                 }
5199                 len = pos - rv->region()->position();
5200                 cmd = _("set fade in length");
5201         } else {
5202                 if (pos >= rv->region()->last_frame()) {
5203                         /* can't do it */
5204                         return;
5205                 }
5206                 len = rv->region()->last_frame() - pos;
5207                 cmd = _("set fade out length");
5208         }
5209
5210         begin_reversible_command (cmd);
5211
5212         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5213                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5214
5215                 if (!tmp) {
5216                         return;
5217                 }
5218
5219                 boost::shared_ptr<AutomationList> alist;
5220                 if (in) {
5221                         alist = tmp->audio_region()->fade_in();
5222                 } else {
5223                         alist = tmp->audio_region()->fade_out();
5224                 }
5225
5226                 XMLNode &before = alist->get_state();
5227
5228                 if (in) {
5229                         tmp->audio_region()->set_fade_in_length (len);
5230                         tmp->audio_region()->set_fade_in_active (true);
5231                 } else {
5232                         tmp->audio_region()->set_fade_out_length (len);
5233                         tmp->audio_region()->set_fade_out_active (true);
5234                 }
5235
5236                 XMLNode &after = alist->get_state();
5237                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
5238         }
5239
5240         commit_reversible_command ();
5241 }
5242
5243 void
5244 Editor::toggle_fade_active (bool in)
5245 {
5246         RegionSelection rs;
5247
5248         get_regions_for_action (rs);
5249
5250         if (rs.empty()) {
5251                 return;
5252         }
5253
5254         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
5255         bool have_switch = false;
5256         bool yn = false;
5257
5258         begin_reversible_command (cmd);
5259
5260         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5261                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5262
5263                 if (!tmp) {
5264                         return;
5265                 }
5266
5267                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
5268
5269                 /* make the behaviour consistent across all regions */
5270
5271                 if (!have_switch) {
5272                         if (in) {
5273                                 yn = region->fade_in_active();
5274                         } else {
5275                                 yn = region->fade_out_active();
5276                         }
5277                         have_switch = true;
5278                 }
5279
5280                 XMLNode &before = region->get_state();
5281                 if (in) {
5282                         region->set_fade_in_active (!yn);
5283                 } else {
5284                         region->set_fade_out_active (!yn);
5285                 }
5286                 XMLNode &after = region->get_state();
5287                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
5288         }
5289
5290         commit_reversible_command ();
5291 }
5292
5293 void
5294 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
5295 {
5296         RegionSelection rs;
5297
5298         get_regions_for_action (rs);
5299
5300         if (rs.empty()) {
5301                 return;
5302         }
5303
5304         begin_reversible_command (_("set fade in shape"));
5305
5306         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5307                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5308
5309                 if (!tmp) {
5310                         return;
5311                 }
5312
5313                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
5314                 XMLNode &before = alist->get_state();
5315
5316                 tmp->audio_region()->set_fade_in_shape (shape);
5317
5318                 XMLNode &after = alist->get_state();
5319                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5320         }
5321
5322         commit_reversible_command ();
5323
5324 }
5325
5326 void
5327 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
5328 {
5329         RegionSelection rs;
5330
5331         get_regions_for_action (rs);
5332
5333         if (rs.empty()) {
5334                 return;
5335         }
5336
5337         begin_reversible_command (_("set fade out shape"));
5338
5339         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5340                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5341
5342                 if (!tmp) {
5343                         return;
5344                 }
5345
5346                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
5347                 XMLNode &before = alist->get_state();
5348
5349                 tmp->audio_region()->set_fade_out_shape (shape);
5350
5351                 XMLNode &after = alist->get_state();
5352                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5353         }
5354
5355         commit_reversible_command ();
5356 }
5357
5358 void
5359 Editor::set_fade_in_active (bool yn)
5360 {
5361         RegionSelection rs;
5362
5363         get_regions_for_action (rs);
5364
5365         if (rs.empty()) {
5366                 return;
5367         }
5368
5369         begin_reversible_command (_("set fade in active"));
5370
5371         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5372                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5373
5374                 if (!tmp) {
5375                         return;
5376                 }
5377
5378
5379                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5380
5381                 XMLNode &before = ar->get_state();
5382
5383                 ar->set_fade_in_active (yn);
5384
5385                 XMLNode &after = ar->get_state();
5386                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5387         }
5388
5389         commit_reversible_command ();
5390 }
5391
5392 void
5393 Editor::set_fade_out_active (bool yn)
5394 {
5395         RegionSelection rs;
5396
5397         get_regions_for_action (rs);
5398
5399         if (rs.empty()) {
5400                 return;
5401         }
5402
5403         begin_reversible_command (_("set fade out active"));
5404
5405         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5406                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5407
5408                 if (!tmp) {
5409                         return;
5410                 }
5411
5412                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5413
5414                 XMLNode &before = ar->get_state();
5415
5416                 ar->set_fade_out_active (yn);
5417
5418                 XMLNode &after = ar->get_state();
5419                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5420         }
5421
5422         commit_reversible_command ();
5423 }
5424
5425 void
5426 Editor::toggle_selected_region_fades (int dir)
5427 {
5428         RegionSelection rs;
5429         RegionSelection::iterator i;
5430         boost::shared_ptr<AudioRegion> ar;
5431         bool yn;
5432
5433         get_regions_for_action (rs);
5434
5435         if (rs.empty()) {
5436                 return;
5437         }
5438
5439         for (i = rs.begin(); i != rs.end(); ++i) {
5440                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5441                         if (dir == -1) {
5442                                 yn = ar->fade_out_active ();
5443                         } else {
5444                                 yn = ar->fade_in_active ();
5445                         }
5446                         break;
5447                 }
5448         }
5449
5450         if (i == rs.end()) {
5451                 return;
5452         }
5453
5454         /* XXX should this undo-able? */
5455
5456         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5457                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5458                         continue;
5459                 }
5460                 if (dir == 1 || dir == 0) {
5461                         ar->set_fade_in_active (!yn);
5462                 }
5463
5464                 if (dir == -1 || dir == 0) {
5465                         ar->set_fade_out_active (!yn);
5466                 }
5467         }
5468 }
5469
5470
5471 /** Update region fade visibility after its configuration has been changed */
5472 void
5473 Editor::update_region_fade_visibility ()
5474 {
5475         bool _fade_visibility = session->config.get_show_region_fades ();
5476
5477         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5478                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5479                 if (v) {
5480                         if (_fade_visibility) {
5481                                 v->audio_view()->show_all_fades ();
5482                         } else {
5483                                 v->audio_view()->hide_all_fades ();
5484                         }
5485                 }
5486         }
5487 }
5488
5489 /** Update crossfade visibility after its configuration has been changed */
5490 void
5491 Editor::update_xfade_visibility ()
5492 {
5493         _xfade_visibility = session->config.get_xfades_visible ();
5494
5495         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5496                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5497                 if (v) {
5498                         if (_xfade_visibility) {
5499                                 v->show_all_xfades ();
5500                         } else {
5501                                 v->hide_all_xfades ();
5502                         }
5503                 }
5504         }
5505 }
5506
5507 void
5508 Editor::set_edit_point ()
5509 {
5510         nframes64_t where;
5511         bool ignored;
5512
5513         if (!mouse_frame (where, ignored)) {
5514                 return;
5515         }
5516
5517         snap_to (where);
5518
5519         if (selection->markers.empty()) {
5520
5521                 mouse_add_new_marker (where);
5522
5523         } else {
5524                 bool ignored;
5525
5526                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5527
5528                 if (loc) {
5529                         loc->move_to (where);
5530                 }
5531         }
5532 }
5533
5534 void
5535 Editor::set_playhead_cursor ()
5536 {
5537         if (entered_marker) {
5538                 session->request_locate (entered_marker->position(), session->transport_rolling());
5539         } else {
5540                 nframes64_t where;
5541                 bool ignored;
5542
5543                 if (!mouse_frame (where, ignored)) {
5544                         return;
5545                 }
5546
5547                 snap_to (where);
5548
5549                 if (session) {
5550                         session->request_locate (where, session->transport_rolling());
5551                 }
5552         }
5553 }
5554
5555 void
5556 Editor::split ()
5557 {
5558         RegionSelection rs;
5559
5560         get_regions_for_action (rs, true);
5561
5562         nframes64_t where = get_preferred_edit_position();
5563
5564         if (rs.empty()) {
5565                 return;
5566         }
5567
5568         split_regions_at (where, rs);
5569 }
5570
5571 void
5572 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
5573 {
5574         if (entered_track && mouse_mode == MouseObject) {
5575                 if (!selection->tracks.empty()) {
5576                         if (!selection->selected (entered_track)) {
5577                                 selection->add (entered_track);
5578                         }
5579                 } else {
5580                         /* there is no selection, but this operation requires/prefers selected objects */
5581
5582                         if (op_really_wants_one_track_if_none_are_selected) {
5583                                 selection->set (entered_track);
5584                         }
5585                 }
5586         }
5587 }
5588
5589 struct EditorOrderRouteSorter {
5590     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5591             /* use of ">" forces the correct sort order */
5592             return a->order_key ("editor") < b->order_key ("editor");
5593     }
5594 };
5595
5596 void
5597 Editor::select_next_route()
5598 {
5599         if (selection->tracks.empty()) {
5600                 selection->set (track_views.front());
5601                 return;
5602         }
5603
5604         TimeAxisView* current = selection->tracks.front();
5605
5606         RouteUI *rui;
5607         do {
5608                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5609                         if (*i == current) {
5610                                 ++i;
5611                                 if (i != track_views.end()) {
5612                                         current = (*i);
5613                                 } else {
5614                                         current = (*(track_views.begin()));
5615                                         //selection->set (*(track_views.begin()));
5616                                 }
5617                                 break;
5618                         }
5619                 }
5620                 rui = dynamic_cast<RouteUI *>(current);
5621         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5622
5623         selection->set(current);
5624
5625         ensure_track_visible(current);
5626 }
5627
5628 void
5629 Editor::select_prev_route()
5630 {
5631         if (selection->tracks.empty()) {
5632                 selection->set (track_views.front());
5633                 return;
5634         }
5635
5636         TimeAxisView* current = selection->tracks.front();
5637
5638         RouteUI *rui;
5639         do {
5640                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5641                         if (*i == current) {
5642                                 ++i;
5643                                 if (i != track_views.rend()) {
5644                                         current = (*i);
5645                                 } else {
5646                                         current = *(track_views.rbegin());
5647                                 }
5648                                 break;
5649                         }
5650                 }
5651                 rui = dynamic_cast<RouteUI *>(current);
5652         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5653
5654         selection->set (current);
5655
5656         ensure_track_visible(current);
5657 }
5658
5659 void
5660 Editor::ensure_track_visible(TimeAxisView *track)
5661 {
5662         if (track->hidden())
5663                 return;
5664
5665         double const current_view_min_y = vertical_adjustment.get_value();
5666         double const current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - canvas_timebars_vsize;
5667
5668         double const track_min_y = track->y_position ();
5669         double const track_max_y = track->y_position () + track->effective_height ();
5670
5671         if (track_min_y >= current_view_min_y &&
5672             track_max_y <= current_view_max_y) {
5673                 return;
5674         }
5675
5676         double new_value;
5677
5678         if (track_min_y < current_view_min_y) {
5679                 // Track is above the current view
5680                 new_value = track_min_y;
5681         } else {
5682                 // Track is below the current view
5683                 new_value = track->y_position () + track->effective_height() + canvas_timebars_vsize - vertical_adjustment.get_page_size();
5684         }
5685
5686         vertical_adjustment.set_value(new_value);
5687 }
5688
5689 void
5690 Editor::set_loop_from_selection (bool play)
5691 {
5692         if (session == 0 || selection->time.empty()) {
5693                 return;
5694         }
5695
5696         nframes64_t start = selection->time[clicked_selection].start;
5697         nframes64_t end = selection->time[clicked_selection].end;
5698
5699         set_loop_range (start, end,  _("set loop range from selection"));
5700
5701         if (play) {
5702                 session->request_play_loop (true);
5703                 session->request_locate (start, true);
5704         }
5705 }
5706
5707 void
5708 Editor::set_loop_from_edit_range (bool play)
5709 {
5710         if (session == 0) {
5711                 return;
5712         }
5713
5714         nframes64_t start;
5715         nframes64_t end;
5716
5717         if (!get_edit_op_range (start, end)) {
5718                 return;
5719         }
5720
5721         set_loop_range (start, end,  _("set loop range from edit range"));
5722
5723         if (play) {
5724                 session->request_play_loop (true);
5725                 session->request_locate (start, true);
5726         }
5727 }
5728
5729 void
5730 Editor::set_loop_from_region (bool play)
5731 {
5732         nframes64_t start = max_frames;
5733         nframes64_t end = 0;
5734
5735         RegionSelection rs;
5736
5737         get_regions_for_action (rs);
5738
5739         if (rs.empty()) {
5740                 return;
5741         }
5742
5743         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5744                 if ((*i)->region()->position() < start) {
5745                         start = (*i)->region()->position();
5746                 }
5747                 if ((*i)->region()->last_frame() + 1 > end) {
5748                         end = (*i)->region()->last_frame() + 1;
5749                 }
5750         }
5751
5752         set_loop_range (start, end, _("set loop range from region"));
5753
5754         if (play) {
5755                 session->request_play_loop (true);
5756                 session->request_locate (start, true);
5757         }
5758 }
5759
5760 void
5761 Editor::set_punch_from_selection ()
5762 {
5763         if (session == 0 || selection->time.empty()) {
5764                 return;
5765         }
5766
5767         nframes64_t start = selection->time[clicked_selection].start;
5768         nframes64_t end = selection->time[clicked_selection].end;
5769
5770         set_punch_range (start, end,  _("set punch range from selection"));
5771 }
5772
5773 void
5774 Editor::set_punch_from_edit_range ()
5775 {
5776         if (session == 0) {
5777                 return;
5778         }
5779
5780         nframes64_t start;
5781         nframes64_t end;
5782
5783         if (!get_edit_op_range (start, end)) {
5784                 return;
5785         }
5786
5787         set_punch_range (start, end,  _("set punch range from edit range"));
5788 }
5789
5790 void
5791 Editor::set_punch_from_region ()
5792 {
5793         nframes64_t start = max_frames;
5794         nframes64_t end = 0;
5795
5796         RegionSelection rs;
5797
5798         get_regions_for_action (rs);
5799
5800         if (rs.empty()) {
5801                 return;
5802         }
5803
5804         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5805                 if ((*i)->region()->position() < start) {
5806                         start = (*i)->region()->position();
5807                 }
5808                 if ((*i)->region()->last_frame() + 1 > end) {
5809                         end = (*i)->region()->last_frame() + 1;
5810                 }
5811         }
5812
5813         set_punch_range (start, end, _("set punch range from region"));
5814 }
5815
5816 void
5817 Editor::pitch_shift_regions ()
5818 {
5819         RegionSelection rs;
5820
5821         get_regions_for_action (rs);
5822
5823         if (rs.empty()) {
5824                 return;
5825         }
5826
5827         pitch_shift (rs, 1.2);
5828 }
5829
5830 void
5831 Editor::use_region_as_bar ()
5832 {
5833         if (!session) {
5834                 return;
5835         }
5836
5837         RegionSelection rs;
5838
5839         get_regions_for_action (rs);
5840
5841         if (rs.empty()) {
5842                 return;
5843         }
5844
5845         RegionView* rv = rs.front();
5846
5847         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5848 }
5849
5850 void
5851 Editor::use_range_as_bar ()
5852 {
5853         nframes64_t start, end;
5854         if (get_edit_op_range (start, end)) {
5855                 define_one_bar (start, end);
5856         }
5857 }
5858
5859 void
5860 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5861 {
5862         nframes64_t length = end - start;
5863
5864         const Meter& m (session->tempo_map().meter_at (start));
5865
5866         /* length = 1 bar */
5867
5868         /* now we want frames per beat.
5869            we have frames per bar, and beats per bar, so ...
5870         */
5871
5872         double frames_per_beat = length / m.beats_per_bar();
5873
5874         /* beats per minute = */
5875
5876         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5877
5878         /* now decide whether to:
5879
5880             (a) set global tempo
5881             (b) add a new tempo marker
5882
5883         */
5884
5885         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5886
5887         bool do_global = false;
5888
5889         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5890
5891                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5892                    at the start, or create a new marker
5893                 */
5894
5895                 vector<string> options;
5896                 options.push_back (_("Cancel"));
5897                 options.push_back (_("Add new marker"));
5898                 options.push_back (_("Set global tempo"));
5899                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5900                           options);
5901                 c.set_default_response (2);
5902
5903                 switch (c.run()) {
5904                 case 0:
5905                         return;
5906
5907                 case 2:
5908                         do_global = true;
5909                         break;
5910
5911                 default:
5912                         do_global = false;
5913                 }
5914
5915         } else {
5916
5917                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5918                    if the marker is at the region starter, change it, otherwise add
5919                    a new tempo marker
5920                 */
5921         }
5922
5923         begin_reversible_command (_("set tempo from region"));
5924         XMLNode& before (session->tempo_map().get_state());
5925
5926         if (do_global) {
5927                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5928         } else if (t.frame() == start) {
5929                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5930         } else {
5931                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5932         }
5933
5934         XMLNode& after (session->tempo_map().get_state());
5935
5936         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5937         commit_reversible_command ();
5938 }
5939
5940 void
5941 Editor::split_region_at_transients ()
5942 {
5943         AnalysisFeatureList positions;
5944
5945         if (!session) {
5946                 return;
5947         }
5948
5949         RegionSelection rs;
5950
5951         get_regions_for_action (rs);
5952
5953         if (rs.empty()) {
5954                 return;
5955         }
5956
5957         session->begin_reversible_command (_("split regions"));
5958
5959         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5960
5961                 RegionSelection::iterator tmp;
5962
5963                 tmp = i;
5964                 ++tmp;
5965
5966                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5967
5968                 if (ar && (ar->get_transients (positions) == 0)) {
5969                         split_region_at_points ((*i)->region(), positions, true);
5970                         positions.clear ();
5971                 }
5972
5973                 i = tmp;
5974         }
5975
5976         session->commit_reversible_command ();
5977
5978 }
5979
5980 void
5981 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5982 {
5983         bool use_rhythmic_rodent = false;
5984
5985         boost::shared_ptr<Playlist> pl = r->playlist();
5986
5987         if (!pl) {
5988                 return;
5989         }
5990
5991         if (positions.empty()) {
5992                 return;
5993         }
5994
5995
5996         if (positions.size() > 20) {
5997                 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);
5998                 MessageDialog msg (msgstr,
5999                                    false,
6000                                    Gtk::MESSAGE_INFO,
6001                                    Gtk::BUTTONS_OK_CANCEL);
6002
6003                 if (can_ferret) {
6004                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
6005                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
6006                 } else {
6007                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
6008                 }
6009
6010                 msg.set_title (_("Excessive split?"));
6011                 msg.present ();
6012
6013                 int response = msg.run();
6014                 msg.hide ();
6015                 switch (response) {
6016                 case RESPONSE_OK:
6017                         break;
6018                 case RESPONSE_APPLY:
6019                         use_rhythmic_rodent = true;
6020                         break;
6021                 default:
6022                         return;
6023                 }
6024         }
6025
6026         if (use_rhythmic_rodent) {
6027                 show_rhythm_ferret ();
6028                 return;
6029         }
6030
6031         AnalysisFeatureList::const_iterator x;
6032
6033         nframes64_t pos = r->position();
6034
6035         XMLNode& before (pl->get_state());
6036
6037         x = positions.begin();
6038
6039         while (x != positions.end()) {
6040                 if ((*x) > pos) {
6041                         break;
6042                 }
6043                 ++x;
6044         }
6045
6046         if (x == positions.end()) {
6047                 return;
6048         }
6049
6050         pl->freeze ();
6051         pl->remove_region (r);
6052
6053         while (x != positions.end()) {
6054
6055                 /* file start = original start + how far we from the initial position ?
6056                  */
6057
6058                 nframes64_t file_start = r->start() + (pos - r->position());
6059
6060                 /* length = next position - current position
6061                  */
6062
6063                 nframes64_t len = (*x) - pos;
6064
6065                 /* XXX we do we really want to allow even single-sample regions?
6066                    shouldn't we have some kind of lower limit on region size?
6067                 */
6068
6069                 if (len <= 0) {
6070                         break;
6071                 }
6072
6073                 string new_name;
6074
6075                 if (session->region_name (new_name, r->name())) {
6076                         break;
6077                 }
6078
6079                 /* do NOT announce new regions 1 by one, just wait till they are all done */
6080
6081                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
6082                 pl->add_region (nr, pos);
6083
6084                 pos += len;
6085                 ++x;
6086
6087                 if (*x > r->last_frame()) {
6088
6089                         /* add final fragment */
6090
6091                         file_start = r->start() + (pos - r->position());
6092                         len = r->last_frame() - pos;
6093
6094                         nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags);
6095                         pl->add_region (nr, pos);
6096
6097                         break;
6098                 }
6099         }
6100
6101         pl->thaw ();
6102
6103         XMLNode& after (pl->get_state());
6104
6105         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
6106 }
6107
6108 void
6109 Editor::tab_to_transient (bool forward)
6110 {
6111         AnalysisFeatureList positions;
6112
6113         if (!session) {
6114                 return;
6115         }
6116
6117         nframes64_t pos = session->audible_frame ();
6118
6119         if (!selection->tracks.empty()) {
6120
6121                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
6122
6123                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
6124
6125                         if (rtv) {
6126                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
6127                                 if (ds) {
6128                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
6129                                         if (pl) {
6130                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
6131
6132                                                 if (result >= 0) {
6133                                                         positions.push_back (result);
6134                                                 }
6135                                         }
6136                                 }
6137                         }
6138                 }
6139
6140         } else {
6141
6142                 RegionSelection rs;
6143
6144                 get_regions_for_action (rs);
6145
6146                 if (rs.empty()) {
6147                         return;
6148                 }
6149
6150                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6151                         (*r)->region()->get_transients (positions);
6152                 }
6153         }
6154
6155         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
6156
6157         if (forward) {
6158                 AnalysisFeatureList::iterator x;
6159
6160                 for (x = positions.begin(); x != positions.end(); ++x) {
6161                         if ((*x) > pos) {
6162                                 break;
6163                         }
6164                 }
6165
6166                 if (x != positions.end ()) {
6167                         session->request_locate (*x);
6168                 }
6169
6170         } else {
6171                 AnalysisFeatureList::reverse_iterator x;
6172
6173                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
6174                         if ((*x) < pos) {
6175                                 break;
6176                         }
6177                 }
6178
6179                 if (x != positions.rend ()) {
6180                         session->request_locate (*x);
6181                 }
6182         }
6183 }
6184 void
6185 Editor::playhead_forward_to_grid ()
6186 {
6187         if (!session) return;
6188         nframes64_t pos = playhead_cursor->current_frame;
6189         if (pos < max_frames - 1) {
6190                 pos += 2;
6191                 snap_to_internal (pos, 1, false);
6192                 session->request_locate (pos);
6193         }
6194 }
6195
6196
6197 void
6198 Editor::playhead_backward_to_grid ()
6199 {
6200         if (!session) return;
6201         nframes64_t pos = playhead_cursor->current_frame;
6202         if (pos > 2) {
6203                 pos -= 2;
6204                 snap_to_internal (pos, -1, false);
6205                 session->request_locate (pos);
6206         }
6207 }
6208
6209 void
6210 Editor::set_track_height (uint32_t h)
6211 {
6212         TrackSelection& ts (selection->tracks);
6213
6214         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6215                 (*x)->set_height (h);
6216         }
6217 }
6218
6219 void
6220 Editor::toggle_tracks_active ()
6221 {
6222         TrackSelection& ts (selection->tracks);
6223         bool first = true;
6224         bool target = false;
6225
6226         if (ts.empty()) {
6227                 return;
6228         }
6229
6230         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6231                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
6232
6233                 if (rtv) {
6234                         if (first) {
6235                                 target = !rtv->_route->active();
6236                                 first = false;
6237                         }
6238                         rtv->_route->set_active (target);
6239                 }
6240         }
6241 }
6242
6243 void
6244 Editor::remove_tracks ()
6245 {
6246         TrackSelection& ts (selection->tracks);
6247
6248         if (ts.empty()) {
6249                 return;
6250         }
6251
6252         vector<string> choices;
6253         string prompt;
6254         int ntracks = 0;
6255         int nbusses = 0;
6256         const char* trackstr;
6257         const char* busstr;
6258         vector<boost::shared_ptr<Route> > routes;
6259
6260         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6261                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
6262                 if (rtv) {
6263                         if (rtv->is_track()) {
6264                                 ntracks++;
6265                         } else {
6266                                 nbusses++;
6267                         }
6268                 }
6269                 routes.push_back (rtv->_route);
6270         }
6271
6272         if (ntracks + nbusses == 0) {
6273                 return;
6274         }
6275
6276         if (ntracks > 1) {
6277                 trackstr = _("tracks");
6278         } else {
6279                 trackstr = _("track");
6280         }
6281
6282         if (nbusses > 1) {
6283                 busstr = _("busses");
6284         } else {
6285                 busstr = _("bus");
6286         }
6287
6288         if (ntracks) {
6289                 if (nbusses) {
6290                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
6291                                                     "(You may also lose the playlists associated with the %2)\n\n"
6292                                                     "This action cannot be undone!"),
6293                                                   ntracks, trackstr, nbusses, busstr);
6294                 } else {
6295                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
6296                                                     "(You may also lose the playlists associated with the %2)\n\n"
6297                                                     "This action cannot be undone!"),
6298                                                   ntracks, trackstr);
6299                 }
6300         } else if (nbusses) {
6301                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
6302                                           nbusses, busstr);
6303         }
6304
6305         choices.push_back (_("No, do nothing."));
6306         if (ntracks + nbusses > 1) {
6307                 choices.push_back (_("Yes, remove them."));
6308         } else {
6309                 choices.push_back (_("Yes, remove it."));
6310         }
6311
6312         Choice prompter (prompt, choices);
6313
6314         if (prompter.run () != 1) {
6315                 return;
6316         }
6317
6318         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
6319                 session->remove_route (*x);
6320         }
6321 }
6322
6323 void
6324 Editor::do_insert_time ()
6325 {
6326         if (selection->tracks.empty()) {
6327                 return;
6328         }
6329
6330         ArdourDialog d (*this, _("Insert Time"));
6331
6332         nframes64_t const pos = get_preferred_edit_position ();
6333
6334         d.get_vbox()->set_border_width (12);
6335         d.get_vbox()->set_spacing (4);
6336
6337         Table table (2, 2);
6338         table.set_spacings (4);
6339
6340         Label time_label (_("Time to insert:"));
6341         time_label.set_alignment (1, 0.5);
6342         table.attach (time_label, 0, 1, 0, 1, FILL | EXPAND);
6343         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, true, true);
6344         clock.set (0);
6345         clock.set_session (session);
6346         clock.set_bbt_reference (pos);
6347         table.attach (clock, 1, 2, 0, 1);
6348
6349         Label intersected_label (_("Intersected regions should:"));
6350         intersected_label.set_alignment (1, 0.5);
6351         table.attach (intersected_label, 0, 1, 1, 2, FILL | EXPAND);
6352         ComboBoxText intersected_combo;
6353         intersected_combo.append_text (_("stay in position"));
6354         intersected_combo.append_text (_("move"));
6355         intersected_combo.append_text (_("be split"));
6356         intersected_combo.set_active (0);
6357         table.attach (intersected_combo, 1, 2, 1, 2);
6358
6359         d.get_vbox()->pack_start (table);
6360
6361         CheckButton move_glued (_("Move glued regions"));
6362         d.get_vbox()->pack_start (move_glued);
6363         CheckButton move_markers (_("Move markers"));
6364         d.get_vbox()->pack_start (move_markers);
6365         CheckButton move_tempos (_("Move tempo and meter changes"));
6366         d.get_vbox()->pack_start (move_tempos);
6367
6368         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
6369         d.add_button (_("Insert time"), Gtk::RESPONSE_OK);
6370         d.show_all ();
6371
6372         int response = d.run ();
6373
6374         if (response != RESPONSE_OK) {
6375                 return;
6376         }
6377
6378         nframes64_t distance = clock.current_duration (pos);
6379
6380         if (distance == 0) {
6381                 return;
6382         }
6383
6384         InsertTimeOption opt;
6385
6386         switch (intersected_combo.get_active_row_number ()) {
6387         case 0:
6388                 opt = LeaveIntersected;
6389                 break;
6390         case 1:
6391                 opt = MoveIntersected;
6392                 break;
6393         case 2:
6394                 opt = SplitIntersected;
6395                 break;
6396         }
6397
6398         insert_time (pos, distance, opt, move_glued.get_active(), move_markers.get_active(), move_tempos.get_active());
6399 }
6400
6401 void
6402 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
6403                      bool ignore_music_glue, bool markers_too, bool tempo_too)
6404 {
6405         bool commit = false;
6406
6407         if (Config->get_edit_mode() == Lock) {
6408                 return;
6409         }
6410
6411         begin_reversible_command (_("insert time"));
6412
6413         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
6414                 /* regions */
6415                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
6416
6417                 if (pl) {
6418
6419                         XMLNode &before = pl->get_state();
6420
6421                         if (opt == SplitIntersected) {
6422                                 pl->split (pos);
6423                         }
6424
6425                         pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6426
6427                         XMLNode &after = pl->get_state();
6428
6429                         session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
6430                         commit = true;
6431                 }
6432
6433                 /* automation */
6434                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6435                 if (rtav) {
6436                         rtav->route ()->shift (pos, frames);
6437                         commit = true;
6438                 }
6439         }
6440
6441         /* markers */
6442         if (markers_too) {
6443                 bool moved = false;
6444                 XMLNode& before (session->locations()->get_state());
6445                 Locations::LocationList copy (session->locations()->list());
6446
6447                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6448
6449                         Locations::LocationList::const_iterator tmp;
6450
6451                         if ((*i)->start() >= pos) {
6452                                 (*i)->set_start ((*i)->start() + frames);
6453                                 if (!(*i)->is_mark()) {
6454                                         (*i)->set_end ((*i)->end() + frames);
6455                                 }
6456                                 moved = true;
6457                         }
6458                 }
6459
6460                 if (moved) {
6461                         XMLNode& after (session->locations()->get_state());
6462                         session->add_command (new MementoCommand<Locations>(*session->locations(), &before, &after));
6463                 }
6464         }
6465
6466         if (tempo_too) {
6467                 session->tempo_map().insert_time (pos, frames);
6468         }
6469
6470         if (commit) {
6471                 commit_reversible_command ();
6472         }
6473 }
6474
6475 void
6476 Editor::fit_selected_tracks ()
6477 {
6478         fit_tracks (selection->tracks);
6479 }
6480
6481 void
6482 Editor::fit_tracks (TrackSelection & tracks)
6483 {
6484         if (tracks.empty()) {
6485                 return;
6486         }
6487
6488         uint32_t child_heights = 0;
6489
6490         for (TrackSelection::iterator t = tracks.begin(); t != tracks.end(); ++t) {
6491
6492                 if (!(*t)->marked_for_display()) {
6493                         continue;
6494                 }
6495
6496                 child_heights += (*t)->effective_height() - (*t)->current_height();
6497         }
6498
6499         uint32_t h = (uint32_t) floor ((_canvas_height - child_heights - canvas_timebars_vsize) / tracks.size());
6500         double first_y_pos = DBL_MAX;
6501
6502         if (h < TimeAxisView::hSmall) {
6503                 MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
6504                 /* too small to be displayed */
6505                 return;
6506         }
6507
6508         undo_visual_stack.push_back (current_visual_state());
6509
6510         /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
6511
6512         bool prev_was_selected = false;
6513         bool is_selected = tracks.contains (track_views.front());
6514         bool next_is_selected;
6515
6516         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
6517
6518                 TrackViewList::iterator next;
6519
6520                 next = t;
6521                 ++next;
6522
6523                 if (next != track_views.end()) {
6524                         next_is_selected = tracks.contains (*next);
6525                 } else {
6526                         next_is_selected = false;
6527                 }
6528
6529                 if (is_selected) {
6530                         (*t)->set_height (h);
6531                         first_y_pos = std::min ((*t)->y_position (), first_y_pos);
6532                 } else {
6533                         if (prev_was_selected && next_is_selected) {
6534                                 hide_track_in_display (**t);
6535                         }
6536                 }
6537
6538                 prev_was_selected = is_selected;
6539                 is_selected = next_is_selected;
6540         }
6541
6542         /*
6543            set the controls_layout height now, because waiting for its size
6544            request signal handler will cause the vertical adjustment setting to fail
6545         */
6546
6547         controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
6548         vertical_adjustment.set_value (first_y_pos);
6549
6550         redo_visual_stack.push_back (current_visual_state());
6551 }
6552
6553 void
6554 Editor::save_visual_state (uint32_t n)
6555 {
6556         while (visual_states.size() <= n) {
6557                 visual_states.push_back (0);
6558         }
6559
6560         delete visual_states[n];
6561
6562         visual_states[n] = current_visual_state (true);
6563         gdk_beep ();
6564 }
6565
6566 void
6567 Editor::goto_visual_state (uint32_t n)
6568 {
6569         if (visual_states.size() <= n) {
6570                 return;
6571         }
6572
6573         if (visual_states[n] == 0) {
6574                 return;
6575         }
6576
6577         use_visual_state (*visual_states[n]);
6578 }
6579
6580 void
6581 Editor::start_visual_state_op (uint32_t n)
6582 {
6583         if (visual_state_op_connection.empty()) {
6584                 visual_state_op_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
6585         }
6586 }
6587
6588 void
6589 Editor::cancel_visual_state_op (uint32_t n)
6590 {
6591         if (!visual_state_op_connection.empty()) {
6592                 visual_state_op_connection.disconnect();
6593                 goto_visual_state (n);
6594         }  else {
6595                 //we land here if called from the menu OR if end_visual_state_op has been called
6596                 //so check if we are already in visual state n
6597                 // XXX not yet checking it at all, but redoing does not hurt
6598                 goto_visual_state (n);
6599         }
6600 }
6601
6602 bool
6603 Editor::end_visual_state_op (uint32_t n)
6604 {
6605         visual_state_op_connection.disconnect();
6606         save_visual_state (n);
6607
6608         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6609         char buf[32];
6610         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6611         pup->set_text (buf);
6612         pup->touch();
6613
6614         return false; // do not call again
6615 }
6616