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         redo_visual_stack.push_back (current_visual_state());
1770 }
1771
1772 void
1773 Editor::zoom_to_region (bool both_axes)
1774 {
1775         temporal_zoom_region (both_axes);
1776 }
1777
1778 void
1779 Editor::temporal_zoom_selection ()
1780 {
1781         if (!selection) return;
1782
1783         if (selection->time.empty()) {
1784                 return;
1785         }
1786
1787         nframes64_t start = selection->time[clicked_selection].start;
1788         nframes64_t end = selection->time[clicked_selection].end;
1789
1790         temporal_zoom_by_frame (start, end, "zoom to selection");
1791 }
1792
1793 void
1794 Editor::temporal_zoom_session ()
1795 {
1796         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::temporal_zoom_session));
1797
1798         if (session) {
1799                 temporal_zoom_by_frame (session->current_start_frame(), session->current_end_frame(), "zoom to session");
1800         }
1801 }
1802
1803 void
1804 Editor::temporal_zoom_by_frame (nframes64_t start, nframes64_t end, const string & /*op*/)
1805 {
1806         if (!session) return;
1807
1808         if ((start == 0 && end == 0) || end < start) {
1809                 return;
1810         }
1811
1812         nframes64_t range = end - start;
1813
1814         double new_fpu = (double)range / (double)_canvas_width;
1815
1816         nframes64_t new_page = (nframes64_t) floor (_canvas_width * new_fpu);
1817         nframes64_t middle = (nframes64_t) floor( (double)start + ((double)range / 2.0f ));
1818         nframes64_t new_leftmost = (nframes64_t) floor( (double)middle - ((double)new_page/2.0f));
1819
1820         if (new_leftmost > middle) {
1821                 new_leftmost = 0;
1822         }
1823
1824         reposition_and_zoom (new_leftmost, new_fpu);
1825 }
1826
1827 void
1828 Editor::temporal_zoom_to_frame (bool coarser, nframes64_t frame)
1829 {
1830         if (!session) {
1831                 return;
1832         }
1833         double range_before = frame - leftmost_frame;
1834         double new_fpu;
1835
1836         new_fpu = frames_per_unit;
1837
1838         if (coarser) {
1839                 new_fpu *= 1.61803399;
1840                 range_before *= 1.61803399;
1841         } else {
1842                 new_fpu = max(1.0,(new_fpu/1.61803399));
1843                 range_before /= 1.61803399;
1844         }
1845
1846         if (new_fpu == frames_per_unit)  {
1847                 return;
1848         }
1849
1850         nframes64_t new_leftmost = frame - (nframes64_t)range_before;
1851
1852         if (new_leftmost > frame) {
1853                 new_leftmost = 0;
1854         }
1855 //      begin_reversible_command (_("zoom to frame"));
1856 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1857 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1858 //      commit_reversible_command ();
1859
1860         reposition_and_zoom (new_leftmost, new_fpu);
1861 }
1862
1863
1864 bool
1865 Editor::choose_new_marker_name(string &name) {
1866
1867         if (!Config->get_name_new_markers()) {
1868                 /* don't prompt user for a new name */
1869                 return true;
1870         }
1871
1872         ArdourPrompter dialog (true);
1873
1874         dialog.set_prompt (_("New Name:"));
1875
1876         dialog.set_title (_("New Location Marker"));
1877
1878         dialog.set_name ("MarkNameWindow");
1879         dialog.set_size_request (250, -1);
1880         dialog.set_position (Gtk::WIN_POS_MOUSE);
1881
1882         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1883         dialog.set_initial_text (name);
1884
1885         dialog.show ();
1886
1887         switch (dialog.run ()) {
1888         case RESPONSE_ACCEPT:
1889                 break;
1890         default:
1891                 return false;
1892         }
1893
1894         dialog.get_result(name);
1895         return true;
1896
1897 }
1898
1899
1900 void
1901 Editor::add_location_from_selection ()
1902 {
1903         string rangename;
1904
1905         if (selection->time.empty()) {
1906                 return;
1907         }
1908
1909         if (session == 0 || clicked_axisview == 0) {
1910                 return;
1911         }
1912
1913         nframes64_t start = selection->time[clicked_selection].start;
1914         nframes64_t end = selection->time[clicked_selection].end;
1915
1916         session->locations()->next_available_name(rangename,"selection");
1917         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1918
1919         session->begin_reversible_command (_("add marker"));
1920         XMLNode &before = session->locations()->get_state();
1921         session->locations()->add (location, true);
1922         XMLNode &after = session->locations()->get_state();
1923         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1924         session->commit_reversible_command ();
1925 }
1926
1927 void
1928 Editor::add_location_mark (nframes64_t where)
1929 {
1930         string markername;
1931
1932         select_new_marker = true;
1933
1934         session->locations()->next_available_name(markername,"mark");
1935         if (!choose_new_marker_name(markername)) {
1936                 return;
1937         }
1938         Location *location = new Location (where, where, markername, Location::IsMark);
1939         session->begin_reversible_command (_("add marker"));
1940         XMLNode &before = session->locations()->get_state();
1941         session->locations()->add (location, true);
1942         XMLNode &after = session->locations()->get_state();
1943         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1944         session->commit_reversible_command ();
1945 }
1946
1947 void
1948 Editor::add_location_from_playhead_cursor ()
1949 {
1950         add_location_mark (session->audible_frame());
1951 }
1952
1953 void
1954 Editor::add_locations_from_audio_region ()
1955 {
1956         RegionSelection rs;
1957
1958         get_regions_for_action (rs);
1959
1960         if (rs.empty()) {
1961                 return;
1962         }
1963
1964         session->begin_reversible_command (rs.size () > 1 ? _("add markers") : _("add marker"));
1965         XMLNode &before = session->locations()->get_state();
1966
1967         cerr << "Add locations\n";
1968
1969         for (RegionSelection::iterator i = rs.begin (); i != rs.end (); ++i) {
1970
1971                 boost::shared_ptr<Region> region = (*i)->region ();
1972
1973                 Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
1974
1975                 session->locations()->add (location, true);
1976         }
1977
1978         XMLNode &after = session->locations()->get_state();
1979         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
1980         session->commit_reversible_command ();
1981 }
1982
1983 void
1984 Editor::add_location_from_audio_region ()
1985 {
1986         RegionSelection rs;
1987
1988         get_regions_for_action (rs);
1989
1990         if (rs.empty()) {
1991                 return;
1992         }
1993
1994         session->begin_reversible_command (_("add marker"));
1995         XMLNode &before = session->locations()->get_state();
1996
1997         string markername;
1998
1999         if (rs.size() > 1) {            // more than one region selected
2000                 session->locations()->next_available_name(markername, "regions");
2001         } else {
2002                 RegionView* rv = *(rs.begin());
2003                 boost::shared_ptr<Region> region = rv->region();
2004                 markername = region->name();
2005         }
2006
2007         if (!choose_new_marker_name(markername)) {
2008                 return;
2009         }
2010
2011         cerr << "Add location\n";
2012
2013         // single range spanning all selected
2014         Location *location = new Location (rs.start(), rs.end_frame(), markername, Location::IsRangeMarker);
2015         session->locations()->add (location, true);
2016
2017         XMLNode &after = session->locations()->get_state();
2018         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
2019         session->commit_reversible_command ();
2020 }
2021
2022 void
2023 Editor::amplitude_zoom_step (bool in)
2024 {
2025         gdouble zoom = 1.0;
2026
2027         if (in) {
2028                 zoom *= 2.0;
2029         } else {
2030                 if (zoom > 2.0) {
2031                         zoom /= 2.0;
2032                 } else {
2033                         zoom = 1.0;
2034                 }
2035         }
2036
2037 #ifdef FIX_FOR_CANVAS
2038         /* XXX DO SOMETHING */
2039 #endif
2040 }
2041
2042
2043 /* DELETION */
2044
2045
2046 void
2047 Editor::delete_sample_forward ()
2048 {
2049 }
2050
2051 void
2052 Editor::delete_sample_backward ()
2053 {
2054 }
2055
2056 void
2057 Editor::delete_screen ()
2058 {
2059 }
2060
2061 /* SEARCH */
2062
2063 void
2064 Editor::search_backwards ()
2065 {
2066         /* what ? */
2067 }
2068
2069 void
2070 Editor::search_forwards ()
2071 {
2072         /* what ? */
2073 }
2074
2075 /* MARKS */
2076
2077 void
2078 Editor::jump_forward_to_mark ()
2079 {
2080         if (!session) {
2081                 return;
2082         }
2083
2084         Location *location = session->locations()->first_location_after (playhead_cursor->current_frame);
2085
2086         if (location) {
2087                 session->request_locate (location->start(), session->transport_rolling());
2088         } else {
2089                 session->request_locate (session->current_end_frame());
2090         }
2091 }
2092
2093 void
2094 Editor::jump_backward_to_mark ()
2095 {
2096         if (!session) {
2097                 return;
2098         }
2099
2100         Location *location = session->locations()->first_location_before (playhead_cursor->current_frame);
2101
2102         if (location) {
2103                 session->request_locate (location->start(), session->transport_rolling());
2104         } else {
2105                 session->goto_start ();
2106         }
2107 }
2108
2109 void
2110 Editor::set_mark ()
2111 {
2112         nframes64_t pos;
2113         float prefix;
2114         bool was_floating;
2115         string markername;
2116
2117         if (get_prefix (prefix, was_floating)) {
2118                 pos = session->audible_frame ();
2119         } else {
2120                 if (was_floating) {
2121                         pos = (nframes64_t) floor (prefix * session->frame_rate ());
2122                 } else {
2123                         pos = (nframes64_t) floor (prefix);
2124                 }
2125         }
2126
2127         session->locations()->next_available_name(markername,"mark");
2128         if (!choose_new_marker_name(markername)) {
2129                 return;
2130         }
2131         session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
2132 }
2133
2134 void
2135 Editor::clear_markers ()
2136 {
2137         if (session) {
2138                 session->begin_reversible_command (_("clear markers"));
2139                 XMLNode &before = session->locations()->get_state();
2140                 session->locations()->clear_markers ();
2141                 XMLNode &after = session->locations()->get_state();
2142                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2143                 session->commit_reversible_command ();
2144         }
2145 }
2146
2147 void
2148 Editor::clear_ranges ()
2149 {
2150         if (session) {
2151                 session->begin_reversible_command (_("clear ranges"));
2152                 XMLNode &before = session->locations()->get_state();
2153
2154                 Location * looploc = session->locations()->auto_loop_location();
2155                 Location * punchloc = session->locations()->auto_punch_location();
2156
2157                 session->locations()->clear_ranges ();
2158                 // re-add these
2159                 if (looploc) session->locations()->add (looploc);
2160                 if (punchloc) session->locations()->add (punchloc);
2161
2162                 XMLNode &after = session->locations()->get_state();
2163                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2164                 session->commit_reversible_command ();
2165         }
2166 }
2167
2168 void
2169 Editor::clear_locations ()
2170 {
2171         session->begin_reversible_command (_("clear locations"));
2172         XMLNode &before = session->locations()->get_state();
2173         session->locations()->clear ();
2174         XMLNode &after = session->locations()->get_state();
2175         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2176         session->commit_reversible_command ();
2177         session->locations()->clear ();
2178 }
2179
2180 void
2181 Editor::unhide_markers ()
2182 {
2183         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2184                 Location *l = (*i).first;
2185                 if (l->is_hidden() && l->is_mark()) {
2186                         l->set_hidden(false, this);
2187                 }
2188         }
2189 }
2190
2191 void
2192 Editor::unhide_ranges ()
2193 {
2194         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2195                 Location *l = (*i).first;
2196                 if (l->is_hidden() && l->is_range_marker()) {
2197                         l->set_hidden(false, this);
2198                 }
2199         }
2200 }
2201
2202 /* INSERT/REPLACE */
2203
2204 void
2205 Editor::insert_region_list_drag (boost::shared_ptr<Region> region, int x, int y)
2206 {
2207         double wx, wy;
2208         double cx, cy;
2209         nframes64_t where;
2210         RouteTimeAxisView *rtv = 0;
2211         boost::shared_ptr<Playlist> playlist;
2212
2213         track_canvas->window_to_world (x, y, wx, wy);
2214         //wx += horizontal_adjustment.get_value();
2215         //wy += vertical_adjustment.get_value();
2216
2217         GdkEvent event;
2218         event.type = GDK_BUTTON_RELEASE;
2219         event.button.x = wx;
2220         event.button.y = wy;
2221
2222         where = event_frame (&event, &cx, &cy);
2223
2224         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
2225                 /* clearly outside canvas area */
2226                 return;
2227         }
2228
2229         std::pair<TimeAxisView*, int> tv = trackview_by_y_position (cy);
2230         if (tv.first == 0) {
2231                 return;
2232         }
2233
2234         if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
2235                 return;
2236         }
2237
2238         if ((playlist = rtv->playlist()) == 0) {
2239                 return;
2240         }
2241
2242         snap_to (where);
2243
2244         begin_reversible_command (_("insert dragged region"));
2245         XMLNode &before = playlist->get_state();
2246         playlist->add_region (RegionFactory::create (region), where, 1.0);
2247         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2248         commit_reversible_command ();
2249 }
2250
2251 void
2252 Editor::insert_route_list_drag (boost::shared_ptr<Route> route, int x, int y) {
2253         double wx, wy;
2254         double cx, cy;
2255         nframes_t where;
2256         RouteTimeAxisView *dest_rtv = 0;
2257         RouteTimeAxisView *source_rtv = 0;
2258
2259         track_canvas->window_to_world (x, y, wx, wy);
2260         wx += horizontal_adjustment.get_value();
2261         wy += vertical_adjustment.get_value();
2262
2263         GdkEvent event;
2264         event.type = GDK_BUTTON_RELEASE;
2265         event.button.x = wx;
2266         event.button.y = wy;
2267
2268         where = event_frame (&event, &cx, &cy);
2269
2270         std::pair<TimeAxisView*, int> const tv = trackview_by_y_position (cy);
2271         if (tv.first == 0) {
2272                 return;
2273         }
2274
2275         if ((dest_rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
2276                 return;
2277         }
2278
2279         /* use this drag source to add underlay to a track. But we really don't care
2280            about the Route, only the view of the route, so find it first */
2281         for(TrackViewList::iterator it = track_views.begin(); it != track_views.end(); ++it) {
2282                 if((source_rtv = dynamic_cast<RouteTimeAxisView*>(*it)) == 0) {
2283                         continue;
2284                 }
2285
2286                 if(source_rtv->route() == route && source_rtv != dest_rtv) {
2287                         dest_rtv->add_underlay(source_rtv->view());
2288                         break;
2289                 }
2290         }
2291 }
2292
2293 void
2294 Editor::insert_region_list_selection (float times)
2295 {
2296         RouteTimeAxisView *tv = 0;
2297         boost::shared_ptr<Playlist> playlist;
2298
2299         if (clicked_routeview != 0) {
2300                 tv = clicked_routeview;
2301         } else if (!selection->tracks.empty()) {
2302                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2303                         return;
2304                 }
2305         } else if (entered_track != 0) {
2306                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2307                         return;
2308                 }
2309         } else {
2310                 return;
2311         }
2312
2313         if ((playlist = tv->playlist()) == 0) {
2314                 return;
2315         }
2316
2317         boost::shared_ptr<Region> region = _regions->get_single_selection ();
2318         if (region == 0) {
2319                 return;
2320         }
2321
2322         begin_reversible_command (_("insert region"));
2323         XMLNode &before = playlist->get_state();
2324         playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2325         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2326         commit_reversible_command ();
2327 }
2328
2329 /* BUILT-IN EFFECTS */
2330
2331 void
2332 Editor::reverse_selection ()
2333 {
2334
2335 }
2336
2337 /* GAIN ENVELOPE EDITING */
2338
2339 void
2340 Editor::edit_envelope ()
2341 {
2342 }
2343
2344 /* PLAYBACK */
2345
2346 void
2347 Editor::transition_to_rolling (bool fwd)
2348 {
2349         if (!session) {
2350                 return;
2351         }
2352
2353         switch (Config->get_slave_source()) {
2354         case None:
2355         case JACK:
2356                 break;
2357         default:
2358                 /* transport controlled by the master */
2359                 return;
2360         }
2361
2362         if (session->is_auditioning()) {
2363                 session->cancel_audition ();
2364                 return;
2365         }
2366
2367         session->request_transport_speed (fwd ? 1.0f : -1.0f);
2368 }
2369
2370 void
2371 Editor::toggle_playback (bool with_abort)
2372 {
2373         if (!session) {
2374                 return;
2375         }
2376
2377         switch (Config->get_slave_source()) {
2378         case None:
2379         case JACK:
2380                 break;
2381         default:
2382                 /* transport controlled by the master */
2383                 return;
2384         }
2385
2386         if (session->is_auditioning()) {
2387                 session->cancel_audition ();
2388                 return;
2389         }
2390
2391         if (session->transport_rolling()) {
2392                 session->request_stop (with_abort);
2393                 if (session->get_play_loop()) {
2394                         session->request_play_loop (false);
2395                 }
2396         } else {
2397                 session->request_transport_speed (1.0f);
2398         }
2399 }
2400
2401 void
2402 Editor::play_from_start ()
2403 {
2404         session->request_locate (session->current_start_frame(), true);
2405 }
2406
2407 void
2408 Editor::play_from_edit_point ()
2409 {
2410         session->request_locate (get_preferred_edit_position(), true);
2411 }
2412
2413 void
2414 Editor::play_from_edit_point_and_return ()
2415 {
2416         nframes64_t start_frame;
2417         nframes64_t return_frame;
2418
2419         start_frame = get_preferred_edit_position (true);
2420
2421         if (session->transport_rolling()) {
2422                 session->request_locate (start_frame, false);
2423                 return;
2424         }
2425
2426         /* don't reset the return frame if its already set */
2427
2428         if ((return_frame = session->requested_return_frame()) < 0) {
2429                 return_frame = session->audible_frame();
2430         }
2431
2432         if (start_frame >= 0) {
2433                 session->request_roll_at_and_return (start_frame, return_frame);
2434         }
2435 }
2436
2437 void
2438 Editor::play_selection ()
2439 {
2440         if (selection->time.empty()) {
2441                 return;
2442         }
2443
2444         session->request_play_range (true);
2445 }
2446
2447 void
2448 Editor::loop_selected_region ()
2449 {
2450         RegionSelection rs;
2451
2452         get_regions_for_action (rs);
2453
2454         if (!rs.empty()) {
2455                 RegionView *rv = *(rs.begin());
2456                 Location* tll;
2457
2458                 if ((tll = transport_loop_location()) != 0)  {
2459
2460                         tll->set (rv->region()->position(), rv->region()->last_frame());
2461
2462                         // enable looping, reposition and start rolling
2463
2464                         session->request_play_loop (true);
2465                         session->request_locate (tll->start(), false);
2466                         session->request_transport_speed (1.0f);
2467                 }
2468         }
2469 }
2470
2471 void
2472 Editor::play_location (Location& location)
2473 {
2474         if (location.start() <= location.end()) {
2475                 return;
2476         }
2477
2478         session->request_bounded_roll (location.start(), location.end());
2479 }
2480
2481 void
2482 Editor::loop_location (Location& location)
2483 {
2484         if (location.start() <= location.end()) {
2485                 return;
2486         }
2487
2488         Location* tll;
2489
2490         if ((tll = transport_loop_location()) != 0) {
2491                 tll->set (location.start(), location.end());
2492
2493                 // enable looping, reposition and start rolling
2494                 session->request_play_loop (true);
2495                 session->request_locate (tll->start(), true);
2496         }
2497 }
2498
2499 void
2500 Editor::raise_region ()
2501 {
2502         selection->foreach_region (&Region::raise);
2503 }
2504
2505 void
2506 Editor::raise_region_to_top ()
2507 {
2508         selection->foreach_region (&Region::raise_to_top);
2509 }
2510
2511 void
2512 Editor::lower_region ()
2513 {
2514         selection->foreach_region (&Region::lower);
2515 }
2516
2517 void
2518 Editor::lower_region_to_bottom ()
2519 {
2520         selection->foreach_region (&Region::lower_to_bottom);
2521 }
2522
2523 /** Show the region editor for the selected regions */
2524 void
2525 Editor::edit_region ()
2526 {
2527         selection->foreach_regionview (&RegionView::show_region_editor);
2528 }
2529
2530 /** Show the midi list editor for the selected MIDI regions */
2531 void
2532 Editor::show_midi_list_editor ()
2533 {
2534         selection->foreach_midi_regionview (&MidiRegionView::show_list_editor);
2535 }
2536
2537 void
2538 Editor::rename_region()
2539 {
2540         RegionSelection rs;
2541
2542         get_regions_for_action (rs);
2543
2544         if (rs.empty()) {
2545                 return;
2546         }
2547
2548         ArdourDialog d (*this, _("Rename Region"), true, false);
2549         Entry entry;
2550         Label label (_("New name:"));
2551         HBox hbox;
2552
2553         hbox.set_spacing (6);
2554         hbox.pack_start (label, false, false);
2555         hbox.pack_start (entry, true, true);
2556
2557         d.get_vbox()->set_border_width (12);
2558         d.get_vbox()->pack_start (hbox, false, false);
2559
2560         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2561         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2562
2563         d.set_size_request (300, -1);
2564         d.set_position (Gtk::WIN_POS_MOUSE);
2565
2566         entry.set_text (rs.front()->region()->name());
2567         entry.select_region (0, -1);
2568
2569         entry.signal_activate().connect (bind (mem_fun (d, &Dialog::response), RESPONSE_OK));
2570
2571         d.show_all ();
2572
2573         entry.grab_focus();
2574
2575         int ret = d.run();
2576
2577         d.hide ();
2578
2579         if (ret == RESPONSE_OK) {
2580                 std::string str = entry.get_text();
2581                 strip_whitespace_edges (str);
2582                 if (!str.empty()) {
2583                         rs.front()->region()->set_name (str);
2584                         _regions->redisplay ();
2585                 }
2586         }
2587 }
2588
2589 void
2590 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2591 {
2592         if (session->is_auditioning()) {
2593                 session->cancel_audition ();
2594         }
2595
2596         // note: some potential for creativity here, because region doesn't
2597         // have to belong to the playlist that Route is handling
2598
2599         // bool was_soloed = route.soloed();
2600
2601         route.set_solo (true, this);
2602
2603         session->request_bounded_roll (region->position(), region->position() + region->length());
2604
2605         /* XXX how to unset the solo state ? */
2606 }
2607
2608 /** Start an audition of the first selected region */
2609 void
2610 Editor::play_edit_range ()
2611 {
2612         nframes64_t start, end;
2613
2614         if (get_edit_op_range (start, end)) {
2615                 session->request_bounded_roll (start, end);
2616         }
2617 }
2618
2619 void
2620 Editor::play_selected_region ()
2621 {
2622         nframes64_t start = max_frames;
2623         nframes64_t end = 0;
2624         RegionSelection rs;
2625
2626         get_regions_for_action (rs);
2627
2628         if (rs.empty()) {
2629                 return;
2630         }
2631
2632         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2633                 if ((*i)->region()->position() < start) {
2634                         start = (*i)->region()->position();
2635                 }
2636                 if ((*i)->region()->last_frame() + 1 > end) {
2637                         end = (*i)->region()->last_frame() + 1;
2638                 }
2639         }
2640
2641         session->request_stop ();
2642         session->request_bounded_roll (start, end);
2643 }
2644
2645 void
2646 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2647 {
2648         session->audition_region (region);
2649 }
2650
2651 void
2652 Editor::build_interthread_progress_window ()
2653 {
2654         interthread_progress_window = new ArdourDialog (X_("interthread progress"), true);
2655
2656         interthread_progress_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
2657
2658         interthread_progress_window->set_border_width (12);
2659         interthread_progress_window->get_vbox()->set_spacing (6);
2660
2661         interthread_progress_label.set_alignment (0.5, 0.5);
2662
2663         interthread_progress_window->get_vbox()->pack_start (interthread_progress_label, false, false);
2664         interthread_progress_window->get_vbox()->pack_start (interthread_progress_bar,false, false);
2665
2666         // GTK2FIX: this button needs a modifiable label
2667
2668         Button* b = interthread_progress_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
2669         b->signal_clicked().connect (mem_fun(*this, &Editor::interthread_cancel_clicked));
2670
2671         interthread_cancel_button.add (interthread_cancel_label);
2672
2673         interthread_progress_window->set_default_size (200, 100);
2674 }
2675
2676 void
2677 Editor::interthread_cancel_clicked ()
2678 {
2679         if (current_interthread_info) {
2680                 current_interthread_info->cancel = true;
2681         }
2682 }
2683
2684 void
2685 Editor::region_from_selection ()
2686 {
2687         if (clicked_axisview == 0) {
2688                 return;
2689         }
2690
2691         if (selection->time.empty()) {
2692                 return;
2693         }
2694
2695         nframes64_t start = selection->time[clicked_selection].start;
2696         nframes64_t end = selection->time[clicked_selection].end;
2697
2698         TrackSelection tracks = get_tracks_for_range_action ();
2699
2700         nframes64_t selection_cnt = end - start + 1;
2701
2702         for (TrackSelection::iterator i = tracks.begin(); i != tracks.end(); ++i) {
2703                 boost::shared_ptr<Region> current;
2704                 boost::shared_ptr<Playlist> pl;
2705                 nframes64_t internal_start;
2706                 string new_name;
2707
2708                 if ((pl = (*i)->playlist()) == 0) {
2709                         continue;
2710                 }
2711
2712                 if ((current = pl->top_region_at (start)) == 0) {
2713                         continue;
2714                 }
2715
2716                 internal_start = start - current->position();
2717                 session->region_name (new_name, current->name(), true);
2718                 boost::shared_ptr<Region> region (RegionFactory::create (current,
2719                                 internal_start, selection_cnt, new_name));
2720         }
2721 }
2722
2723 void
2724 Editor::create_region_from_selection (vector<boost::shared_ptr<Region> >& new_regions)
2725 {
2726         if (selection->time.empty() || selection->tracks.empty()) {
2727                 return;
2728         }
2729
2730         nframes64_t start = selection->time[clicked_selection].start;
2731         nframes64_t end = selection->time[clicked_selection].end;
2732
2733         sort_track_selection ();
2734
2735         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2736                 boost::shared_ptr<Region> current;
2737                 boost::shared_ptr<Playlist> playlist;
2738                 nframes64_t internal_start;
2739                 string new_name;
2740
2741                 if ((playlist = (*i)->playlist()) == 0) {
2742                         continue;
2743                 }
2744
2745                 if ((current = playlist->top_region_at(start)) == 0) {
2746                         continue;
2747                 }
2748
2749                 internal_start = start - current->position();
2750                 session->region_name (new_name, current->name(), true);
2751
2752                 new_regions.push_back (RegionFactory::create (current,
2753                                         internal_start, end - start + 1, new_name));
2754         }
2755 }
2756
2757 void
2758 Editor::split_multichannel_region ()
2759 {
2760         RegionSelection rs;
2761
2762         get_regions_for_action (rs);
2763
2764         if (rs.empty()) {
2765                 return;
2766         }
2767
2768         vector< boost::shared_ptr<Region> > v;
2769
2770         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2771                 (*x)->region()->separate_by_channel (*session, v);
2772         }
2773 }
2774
2775 void
2776 Editor::new_region_from_selection ()
2777 {
2778         region_from_selection ();
2779         cancel_selection ();
2780 }
2781
2782 static void
2783 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2784 {
2785         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2786         case OverlapNone:
2787                 break;
2788         default:
2789                 rs->push_back (rv);
2790         }
2791 }
2792
2793 /** Return either:
2794  *    - selected tracks, or if there are none...
2795  *    - tracks containing selected regions, or if there are none...
2796  *    - all tracks
2797  * @return tracks.
2798  */
2799 TrackSelection
2800 Editor::get_tracks_for_range_action () const
2801 {
2802         TrackSelection t;
2803
2804         if (selection->tracks.empty()) {
2805
2806                 /* use tracks with selected regions */
2807
2808                 RegionSelection rs = selection->regions;
2809
2810                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2811                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2812
2813                         if (!t.contains (tv)) {
2814                                 t.push_back (tv);
2815                         }
2816                 }
2817
2818                 if (t.empty()) {
2819                         /* no regions and no tracks: use all tracks */
2820                         t = track_views;
2821                 }
2822
2823         } else {
2824
2825                 t = selection->tracks;
2826         }
2827
2828         return t;
2829 }
2830
2831 void
2832 Editor::separate_regions_between (const TimeSelection& ts)
2833 {
2834         bool in_command = false;
2835         boost::shared_ptr<Playlist> playlist;
2836         RegionSelection new_selection;
2837
2838         TrackSelection tmptracks = get_tracks_for_range_action ();
2839         sort_track_selection (&tmptracks);
2840
2841         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2842
2843                 RouteTimeAxisView* rtv;
2844
2845                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2846
2847                         if (rtv->is_track()) {
2848
2849                                 /* no edits to destructive tracks */
2850
2851                                 if (rtv->track()->diskstream()->destructive()) {
2852                                         continue;
2853                                 }
2854
2855                                 if ((playlist = rtv->playlist()) != 0) {
2856
2857                                         XMLNode *before;
2858                                         bool got_some;
2859
2860                                         before = &(playlist->get_state());
2861                                         got_some = false;
2862
2863                                         /* XXX need to consider musical time selections here at some point */
2864
2865                                         double speed = rtv->get_diskstream()->speed();
2866
2867
2868                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2869
2870                                                 sigc::connection c = rtv->view()->RegionViewAdded.connect (
2871                                                                 mem_fun(*this, &Editor::collect_new_region_view));
2872                                                 latest_regionviews.clear ();
2873
2874                                                 playlist->partition ((nframes64_t)((*t).start * speed),
2875                                                                 (nframes64_t)((*t).end * speed), true);
2876
2877                                                 c.disconnect ();
2878
2879                                                 if (!latest_regionviews.empty()) {
2880
2881                                                         got_some = true;
2882
2883                                                         rtv->view()->foreach_regionview (bind (
2884                                                                                 sigc::ptr_fun (add_if_covered),
2885                                                                                 &(*t), &new_selection));
2886
2887                                                         if (!in_command) {
2888                                                                 begin_reversible_command (_("separate"));
2889                                                                 in_command = true;
2890                                                         }
2891
2892                                                         session->add_command(new MementoCommand<Playlist>(
2893                                                                         *playlist, before, &playlist->get_state()));
2894                                                 }
2895                                         }
2896
2897                                         if (!got_some) {
2898                                                 delete before;
2899                                         }
2900                                 }
2901                         }
2902                 }
2903         }
2904
2905         if (in_command) {
2906                 selection->set (new_selection);
2907                 set_mouse_mode (MouseObject);
2908
2909                 commit_reversible_command ();
2910         }
2911 }
2912
2913 /** Take tracks from get_tracks_for_range_action and cut any regions
2914  *  on those tracks so that the tracks are empty over the time
2915  *  selection.
2916  */
2917 void
2918 Editor::separate_region_from_selection ()
2919 {
2920         /* preferentially use *all* ranges in the time selection if we're in range mode
2921            to allow discontiguous operation, since get_edit_op_range() currently
2922            returns a single range.
2923         */
2924
2925         if (mouse_mode == MouseRange && !selection->time.empty()) {
2926
2927                 separate_regions_between (selection->time);
2928
2929         } else {
2930
2931                 nframes64_t start;
2932                 nframes64_t end;
2933
2934                 if (get_edit_op_range (start, end)) {
2935
2936                         AudioRange ar (start, end, 1);
2937                         TimeSelection ts;
2938                         ts.push_back (ar);
2939
2940                         separate_regions_between (ts);
2941                 }
2942         }
2943 }
2944
2945 void
2946 Editor::separate_region_from_punch ()
2947 {
2948         Location* loc  = session->locations()->auto_punch_location();
2949         if (loc) {
2950                 separate_regions_using_location (*loc);
2951         }
2952 }
2953
2954 void
2955 Editor::separate_region_from_loop ()
2956 {
2957         Location* loc  = session->locations()->auto_loop_location();
2958         if (loc) {
2959                 separate_regions_using_location (*loc);
2960         }
2961 }
2962
2963 void
2964 Editor::separate_regions_using_location (Location& loc)
2965 {
2966         if (loc.is_mark()) {
2967                 return;
2968         }
2969
2970         AudioRange ar (loc.start(), loc.end(), 1);
2971         TimeSelection ts;
2972
2973         ts.push_back (ar);
2974
2975         separate_regions_between (ts);
2976 }
2977
2978 void
2979 Editor::crop_region_to_selection ()
2980 {
2981         if (!selection->time.empty()) {
2982
2983                 crop_region_to (selection->time.start(), selection->time.end_frame());
2984
2985         } else {
2986
2987                 nframes64_t start;
2988                 nframes64_t end;
2989
2990                 if (get_edit_op_range (start, end)) {
2991                         crop_region_to (start, end);
2992                 }
2993         }
2994
2995 }
2996
2997 void
2998 Editor::crop_region_to (nframes64_t start, nframes64_t end)
2999 {
3000         vector<boost::shared_ptr<Playlist> > playlists;
3001         boost::shared_ptr<Playlist> playlist;
3002         TrackSelection* ts;
3003
3004         if (selection->tracks.empty()) {
3005                 ts = &track_views;
3006         } else {
3007                 sort_track_selection ();
3008                 ts = &selection->tracks;
3009         }
3010
3011         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
3012
3013                 RouteTimeAxisView* rtv;
3014
3015                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
3016
3017                         boost::shared_ptr<Track> t = rtv->track();
3018
3019                         if (t != 0 && ! t->diskstream()->destructive()) {
3020
3021                                 if ((playlist = rtv->playlist()) != 0) {
3022                                         playlists.push_back (playlist);
3023                                 }
3024                         }
3025                 }
3026         }
3027
3028         if (playlists.empty()) {
3029                 return;
3030         }
3031
3032         nframes64_t the_start;
3033         nframes64_t the_end;
3034         nframes64_t cnt;
3035
3036         begin_reversible_command (_("trim to selection"));
3037
3038         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
3039
3040                 boost::shared_ptr<Region> region;
3041
3042                 the_start = start;
3043
3044                 if ((region = (*i)->top_region_at(the_start)) == 0) {
3045                         continue;
3046                 }
3047
3048                 /* now adjust lengths to that we do the right thing
3049                    if the selection extends beyond the region
3050                 */
3051
3052                 the_start = max (the_start, (nframes64_t) region->position());
3053                 if (max_frames - the_start < region->length()) {
3054                         the_end = the_start + region->length() - 1;
3055                 } else {
3056                         the_end = max_frames;
3057                 }
3058                 the_end = min (end, the_end);
3059                 cnt = the_end - the_start + 1;
3060
3061                 XMLNode &before = (*i)->get_state();
3062                 region->trim_to (the_start, cnt, this);
3063                 XMLNode &after = (*i)->get_state();
3064                 session->add_command (new MementoCommand<Playlist>(*(*i), &before, &after));
3065         }
3066
3067         commit_reversible_command ();
3068 }
3069
3070 void
3071 Editor::region_fill_track ()
3072 {
3073         nframes64_t end;
3074         RegionSelection rs;
3075
3076         get_regions_for_action (rs);
3077
3078         if (!session || rs.empty()) {
3079                 return;
3080         }
3081
3082         end = session->current_end_frame ();
3083
3084         begin_reversible_command (_("region fill"));
3085
3086         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3087
3088                 boost::shared_ptr<Region> region ((*i)->region());
3089
3090                 boost::shared_ptr<Playlist> pl = region->playlist();
3091
3092                 if (end <= region->last_frame()) {
3093                         return;
3094                 }
3095
3096                 double times = (double) (end - region->last_frame()) / (double) region->length();
3097
3098                 if (times == 0) {
3099                         return;
3100                 }
3101
3102                 XMLNode &before = pl->get_state();
3103                 pl->add_region (RegionFactory::create (region), region->last_frame(), times);
3104                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
3105         }
3106
3107         commit_reversible_command ();
3108 }
3109
3110 void
3111 Editor::region_fill_selection ()
3112 {
3113         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3114                 return;
3115         }
3116
3117         if (selection->time.empty()) {
3118                 return;
3119         }
3120
3121         boost::shared_ptr<Region> region = _regions->get_single_selection ();
3122         if (region == 0) {
3123                 return;
3124         }
3125
3126         nframes64_t start = selection->time[clicked_selection].start;
3127         nframes64_t end = selection->time[clicked_selection].end;
3128
3129         boost::shared_ptr<Playlist> playlist;
3130
3131         if (selection->tracks.empty()) {
3132                 return;
3133         }
3134
3135         nframes64_t selection_length = end - start;
3136         float times = (float)selection_length / region->length();
3137
3138         begin_reversible_command (_("fill selection"));
3139
3140         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3141
3142                 if ((playlist = (*i)->playlist()) == 0) {
3143                         continue;
3144                 }
3145
3146                 XMLNode &before = playlist->get_state();
3147                 playlist->add_region (RegionFactory::create (region), start, times);
3148                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3149         }
3150
3151         commit_reversible_command ();
3152 }
3153
3154 void
3155 Editor::set_region_sync_from_edit_point ()
3156 {
3157         nframes64_t where = get_preferred_edit_position ();
3158         RegionSelection rs;
3159         get_regions_for_action (rs);
3160         set_sync_point (where, rs);
3161 }
3162
3163 void
3164 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
3165 {
3166         bool in_command = false;
3167
3168         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3169
3170                 if (!(*r)->region()->covers (where)) {
3171                         continue;
3172                 }
3173
3174                 boost::shared_ptr<Region> region ((*r)->region());
3175
3176                 if (!in_command) {
3177                         begin_reversible_command (_("set sync point"));
3178                         in_command = true;
3179                 }
3180
3181                 XMLNode &before = region->playlist()->get_state();
3182                 region->set_sync_position (where);
3183                 XMLNode &after = region->playlist()->get_state();
3184                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3185         }
3186
3187         if (in_command) {
3188                 commit_reversible_command ();
3189         }
3190 }
3191
3192 /** Remove the sync positions of the selection */
3193 void
3194 Editor::remove_region_sync ()
3195 {
3196         RegionSelection rs;
3197
3198         get_regions_for_action (rs);
3199
3200         if (rs.empty()) {
3201                 return;
3202         }
3203
3204         begin_reversible_command (_("remove sync"));
3205         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3206
3207                 XMLNode &before = (*i)->region()->playlist()->get_state();
3208                 (*i)->region()->clear_sync_position ();
3209                 XMLNode &after = (*i)->region()->playlist()->get_state();
3210                 session->add_command(new MementoCommand<Playlist>(*((*i)->region()->playlist()), &before, &after));
3211         }
3212         commit_reversible_command ();
3213 }
3214
3215 void
3216 Editor::naturalize ()
3217 {
3218         RegionSelection rs;
3219
3220         get_regions_for_action (rs);
3221
3222         if (rs.empty()) {
3223                 return;
3224         }
3225
3226         begin_reversible_command (_("naturalize"));
3227         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3228                 XMLNode &before = (*i)->region()->get_state();
3229                 (*i)->region()->move_to_natural_position (this);
3230                 XMLNode &after = (*i)->region()->get_state();
3231                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
3232         }
3233         commit_reversible_command ();
3234 }
3235
3236 void
3237 Editor::align (RegionPoint what)
3238 {
3239         RegionSelection rs;
3240
3241         get_regions_for_action (rs);
3242         nframes64_t where = get_preferred_edit_position();
3243
3244         if (!rs.empty()) {
3245                 align_selection (what, where, rs);
3246         } else {
3247
3248                 RegionSelection rs;
3249                 get_regions_at (rs, where, selection->tracks);
3250                 align_selection (what, where, rs);
3251         }
3252 }
3253
3254 void
3255 Editor::align_relative (RegionPoint what)
3256 {
3257         nframes64_t where = get_preferred_edit_position();
3258         RegionSelection rs;
3259
3260         get_regions_for_action (rs);
3261
3262         if (!rs.empty()) {
3263                 align_selection_relative (what, where, rs);
3264         }
3265 }
3266
3267 struct RegionSortByTime {
3268     bool operator() (const RegionView* a, const RegionView* b) {
3269             return a->region()->position() < b->region()->position();
3270     }
3271 };
3272
3273 void
3274 Editor::align_selection_relative (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3275 {
3276         if (rs.empty()) {
3277                 return;
3278         }
3279
3280         nframes64_t distance = 0;
3281         nframes64_t pos = 0;
3282         int dir = 1;
3283
3284         list<RegionView*> sorted;
3285         rs.by_position (sorted);
3286
3287         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3288
3289         switch (point) {
3290         case Start:
3291                 pos = position;
3292                 if (position > r->position()) {
3293                         distance = position - r->position();
3294                 } else {
3295                         distance = r->position() - position;
3296                         dir = -1;
3297                 }
3298                 break;
3299
3300         case End:
3301                 if (position > r->last_frame()) {
3302                         distance = position - r->last_frame();
3303                         pos = r->position() + distance;
3304                 } else {
3305                         distance = r->last_frame() - position;
3306                         pos = r->position() - distance;
3307                         dir = -1;
3308                 }
3309                 break;
3310
3311         case SyncPoint:
3312                 pos = r->adjust_to_sync (position);
3313                 if (pos > r->position()) {
3314                         distance = pos - r->position();
3315                 } else {
3316                         distance = r->position() - pos;
3317                         dir = -1;
3318                 }
3319                 break;
3320         }
3321
3322         if (pos == r->position()) {
3323                 return;
3324         }
3325
3326         begin_reversible_command (_("align selection (relative)"));
3327
3328         /* move first one specially */
3329
3330         XMLNode &before = r->playlist()->get_state();
3331         r->set_position (pos, this);
3332         XMLNode &after = r->playlist()->get_state();
3333         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3334
3335         /* move rest by the same amount */
3336
3337         sorted.pop_front();
3338
3339         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3340
3341                 boost::shared_ptr<Region> region ((*i)->region());
3342
3343                 XMLNode &before = region->playlist()->get_state();
3344
3345                 if (dir > 0) {
3346                         region->set_position (region->position() + distance, this);
3347                 } else {
3348                         region->set_position (region->position() - distance, this);
3349                 }
3350
3351                 XMLNode &after = region->playlist()->get_state();
3352                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3353
3354         }
3355
3356         commit_reversible_command ();
3357 }
3358
3359 void
3360 Editor::align_selection (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3361 {
3362         if (rs.empty()) {
3363                 return;
3364         }
3365
3366         begin_reversible_command (_("align selection"));
3367
3368         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3369                 align_region_internal ((*i)->region(), point, position);
3370         }
3371
3372         commit_reversible_command ();
3373 }
3374
3375 void
3376 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3377 {
3378         begin_reversible_command (_("align region"));
3379         align_region_internal (region, point, position);
3380         commit_reversible_command ();
3381 }
3382
3383 void
3384 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3385 {
3386         XMLNode &before = region->playlist()->get_state();
3387
3388         switch (point) {
3389         case SyncPoint:
3390                 region->set_position (region->adjust_to_sync (position), this);
3391                 break;
3392
3393         case End:
3394                 if (position > region->length()) {
3395                         region->set_position (position - region->length(), this);
3396                 }
3397                 break;
3398
3399         case Start:
3400                 region->set_position (position, this);
3401                 break;
3402         }
3403
3404         XMLNode &after = region->playlist()->get_state();
3405         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3406 }
3407
3408 void
3409 Editor::trim_region_front ()
3410 {
3411         trim_region (true);
3412 }
3413
3414 void
3415 Editor::trim_region_back ()
3416 {
3417         trim_region (false);
3418 }
3419
3420 void
3421 Editor::trim_region (bool front)
3422 {
3423         nframes64_t where = get_preferred_edit_position();
3424         RegionSelection rs;
3425
3426         get_regions_for_action (rs);
3427
3428         if (rs.empty()) {
3429                 return;
3430         }
3431
3432         begin_reversible_command (front ? _("trim front") : _("trim back"));
3433
3434         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
3435                 if (!(*i)->region()->locked()) {
3436                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
3437                         XMLNode &before = pl->get_state();
3438                         if (front) {
3439                                 (*i)->region()->trim_front (where, this);
3440                         } else {
3441                                 (*i)->region()->trim_end (where, this);
3442                         }
3443                         XMLNode &after = pl->get_state();
3444                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
3445                 }
3446         }
3447
3448         commit_reversible_command ();
3449 }
3450
3451 /** Trim the end of the selected regions to the position of the edit cursor */
3452 void
3453 Editor::trim_region_to_loop ()
3454 {
3455         Location* loc = session->locations()->auto_loop_location();
3456         if (!loc) {
3457                 return;
3458         }
3459         trim_region_to_location (*loc, _("trim to loop"));
3460 }
3461
3462 void
3463 Editor::trim_region_to_punch ()
3464 {
3465         Location* loc = session->locations()->auto_punch_location();
3466         if (!loc) {
3467                 return;
3468         }
3469         trim_region_to_location (*loc, _("trim to punch"));
3470 }
3471 void
3472 Editor::trim_region_to_location (const Location& loc, const char* str)
3473 {
3474         RegionSelection rs;
3475
3476         get_regions_for_action (rs);
3477
3478         begin_reversible_command (str);
3479
3480         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3481                 RegionView* rv = (*x);
3482
3483                 /* require region to span proposed trim */
3484                 switch (rv->region()->coverage (loc.start(), loc.end())) {
3485                 case OverlapInternal:
3486                         break;
3487                 default:
3488                         continue;
3489                 }
3490
3491                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3492                 if (!tav) {
3493                         return;
3494                 }
3495
3496                 float speed = 1.0;
3497                 nframes64_t start;
3498                 nframes64_t end;
3499
3500                 if (tav->get_diskstream() != 0) {
3501                         speed = tav->get_diskstream()->speed();
3502                 }
3503
3504                 start = session_frame_to_track_frame (loc.start(), speed);
3505                 end = session_frame_to_track_frame (loc.end(), speed);
3506
3507                 XMLNode &before = rv->region()->playlist()->get_state();
3508                 rv->region()->trim_to (start, (end - start), this);
3509                 XMLNode &after = rv->region()->playlist()->get_state();
3510                 session->add_command(new MementoCommand<Playlist>(
3511                                 *(rv->region()->playlist()), &before, &after));
3512         }
3513
3514         commit_reversible_command ();
3515 }
3516
3517 void
3518 Editor::trim_region_to_edit_point ()
3519 {
3520         RegionSelection rs;
3521
3522         get_regions_for_action (rs);
3523
3524         nframes64_t where = get_preferred_edit_position();
3525
3526         begin_reversible_command (_("trim region start to edit point"));
3527
3528         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3529                 RegionView* rv = (*x);
3530
3531                 /* require region to cover trim */
3532                 if (!rv->region()->covers (where)) {
3533                         continue;
3534                 }
3535
3536                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3537                 if (!tav) {
3538                         return;
3539                 }
3540
3541                 float speed = 1.0;
3542
3543                 if (tav->get_diskstream() != 0) {
3544                         speed = tav->get_diskstream()->speed();
3545                 }
3546
3547                 XMLNode &before = rv->region()->playlist()->get_state();
3548                 rv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3549                 XMLNode &after = rv->region()->playlist()->get_state();
3550                 session->add_command(new MementoCommand<Playlist>(
3551                                 *(rv->region()->playlist()), &before, &after));
3552         }
3553
3554         commit_reversible_command ();
3555 }
3556
3557 void
3558 Editor::trim_region_from_edit_point ()
3559 {
3560         RegionSelection rs;
3561
3562         get_regions_for_action (rs);
3563
3564         nframes64_t where = get_preferred_edit_position();
3565
3566         begin_reversible_command (_("trim region end to edit point"));
3567
3568         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3569                 RegionView* rv = (*x);
3570
3571                 /* require region to cover trim */
3572                 if (!rv->region()->covers (where)) {
3573                         continue;
3574                 }
3575
3576                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3577                 if (!tav) {
3578                         return;
3579                 }
3580
3581                 float speed = 1.0;
3582
3583                 if (tav->get_diskstream() != 0) {
3584                         speed = tav->get_diskstream()->speed();
3585                 }
3586
3587                 XMLNode &before = rv->region()->playlist()->get_state();
3588                 rv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3589                 XMLNode &after = rv->region()->playlist()->get_state();
3590                 session->add_command(new MementoCommand<Playlist>(
3591                                 *(rv->region()->playlist()), &before, &after));
3592         }
3593
3594         commit_reversible_command ();
3595 }
3596
3597 void
3598 Editor::trim_region_to_previous_region_end ()
3599 {
3600         return trim_to_region(false);
3601 }
3602
3603 void
3604 Editor::trim_region_to_next_region_start ()
3605 {
3606         return trim_to_region(true);
3607 }
3608
3609 void
3610 Editor::trim_to_region(bool forward)
3611 {
3612         RegionSelection rs;
3613
3614         get_regions_for_action (rs);
3615
3616         begin_reversible_command (_("trim to region"));
3617
3618         boost::shared_ptr<Region> next_region;
3619
3620         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3621
3622                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3623
3624                 if (!arv) {
3625                         continue;
3626                 }
3627
3628                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3629
3630                 if (!atav) {
3631                         return;
3632                 }
3633
3634                 float speed = 1.0;
3635
3636                 if (atav->get_diskstream() != 0) {
3637                         speed = atav->get_diskstream()->speed();
3638                 }
3639
3640
3641                 boost::shared_ptr<Region> region = arv->region();
3642                 boost::shared_ptr<Playlist> playlist (region->playlist());
3643
3644                 XMLNode &before = playlist->get_state();
3645
3646                 if(forward){
3647
3648                     next_region = playlist->find_next_region (region->first_frame(), Start, 1);
3649
3650                     if(!next_region){
3651                         continue;
3652                     }
3653
3654                     region->trim_end((nframes64_t) (next_region->first_frame() * speed), this);
3655                     arv->region_changed (Change (LengthChanged));
3656                 }
3657                 else {
3658
3659                     next_region = playlist->find_next_region (region->first_frame(), Start, 0);
3660
3661                     if(!next_region){
3662                         continue;
3663                     }
3664
3665                     region->trim_front((nframes64_t) ((next_region->last_frame() + 1) * speed), this);
3666                     arv->region_changed (Change (LengthChanged|PositionChanged|StartChanged));
3667                 }
3668
3669                 XMLNode &after = playlist->get_state();
3670                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
3671         }
3672
3673         commit_reversible_command ();
3674 }
3675
3676 void
3677 Editor::unfreeze_route ()
3678 {
3679         if (clicked_routeview == 0 || !clicked_routeview->is_track()) {
3680                 return;
3681         }
3682
3683         clicked_routeview->track()->unfreeze ();
3684 }
3685
3686 void*
3687 Editor::_freeze_thread (void* arg)
3688 {
3689         PBD::notify_gui_about_thread_creation (pthread_self(), X_("Freeze"));
3690         return static_cast<Editor*>(arg)->freeze_thread ();
3691 }
3692
3693 void*
3694 Editor::freeze_thread ()
3695 {
3696         clicked_routeview->audio_track()->freeze (*current_interthread_info);
3697         current_interthread_info->done = true;
3698         return 0;
3699 }
3700
3701 gint
3702 Editor::freeze_progress_timeout (void */*arg*/)
3703 {
3704         interthread_progress_bar.set_fraction (current_interthread_info->progress);
3705         return !(current_interthread_info->done || current_interthread_info->cancel);
3706 }
3707
3708 void
3709 Editor::freeze_route ()
3710 {
3711         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3712                 return;
3713         }
3714
3715         InterThreadInfo itt;
3716
3717         if (interthread_progress_window == 0) {
3718                 build_interthread_progress_window ();
3719         }
3720
3721         interthread_progress_window->set_title (_("Freeze"));
3722         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3723         interthread_progress_window->show_all ();
3724         interthread_progress_bar.set_fraction (0.0f);
3725         interthread_progress_label.set_text ("");
3726         interthread_cancel_label.set_text (_("Cancel Freeze"));
3727         current_interthread_info = &itt;
3728
3729         interthread_progress_connection =
3730           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3731
3732         itt.done = false;
3733         itt.cancel = false;
3734         itt.progress = 0.0f;
3735
3736         pthread_attr_t attr;
3737         pthread_attr_init(&attr);
3738         pthread_attr_setstacksize(&attr, 500000);
3739
3740         pthread_create_and_store (X_("freezer"), &itt.thread, &attr, _freeze_thread, this);
3741
3742         pthread_attr_destroy(&attr);
3743
3744         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3745
3746         while (!itt.done && !itt.cancel) {
3747                 gtk_main_iteration ();
3748         }
3749
3750         interthread_progress_connection.disconnect ();
3751         interthread_progress_window->hide_all ();
3752         current_interthread_info = 0;
3753         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3754 }
3755
3756 void
3757 Editor::bounce_range_selection (bool replace, bool enable_processing)
3758 {
3759         if (selection->time.empty()) {
3760                 return;
3761         }
3762
3763         TrackSelection views = selection->tracks;
3764
3765         nframes64_t start = selection->time[clicked_selection].start;
3766         nframes64_t end = selection->time[clicked_selection].end;
3767         nframes64_t cnt = end - start + 1;
3768
3769         begin_reversible_command (_("bounce range"));
3770
3771         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3772
3773                 RouteTimeAxisView* rtv;
3774
3775                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
3776                         continue;
3777                 }
3778
3779                 boost::shared_ptr<Playlist> playlist;
3780
3781                 if ((playlist = rtv->playlist()) == 0) {
3782                         return;
3783                 }
3784
3785                 InterThreadInfo itt;
3786
3787                 itt.done = false;
3788                 itt.cancel = false;
3789                 itt.progress = false;
3790
3791                 XMLNode &before = playlist->get_state();
3792                 boost::shared_ptr<Region> r = rtv->track()->bounce_range (start, start+cnt, itt, enable_processing);
3793
3794                 if (replace) {
3795                         list<AudioRange> ranges;
3796                         ranges.push_back (AudioRange (start, start+cnt, 0));
3797                         playlist->cut (ranges); // discard result
3798                         playlist->add_region (r, start);
3799                 }
3800
3801                 XMLNode &after = playlist->get_state();
3802                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3803         }
3804
3805         commit_reversible_command ();
3806 }
3807
3808 /** Cut selected regions, automation points or a time range */
3809 void
3810 Editor::cut ()
3811 {
3812         cut_copy (Cut);
3813 }
3814
3815 /** Copy selected regions, automation points or a time range */
3816 void
3817 Editor::copy ()
3818 {
3819         cut_copy (Copy);
3820 }
3821
3822
3823 /** @return true if a Cut, Copy or Clear is possible */
3824 bool
3825 Editor::can_cut_copy () const
3826 {
3827         switch (current_mouse_mode()) {
3828
3829         case MouseObject:
3830                 if (!selection->regions.empty() || !selection->points.empty()) {
3831                         return true;
3832                 }
3833                 break;
3834
3835         case MouseRange:
3836                 if (!selection->time.empty()) {
3837                         return true;
3838                 }
3839                 break;
3840
3841         default:
3842                 break;
3843         }
3844
3845         return false;
3846 }
3847
3848
3849 /** Cut, copy or clear selected regions, automation points or a time range.
3850  * @param op Operation (Cut, Copy or Clear)
3851  */
3852 void
3853 Editor::cut_copy (CutCopyOp op)
3854 {
3855         /* only cancel selection if cut/copy is successful.*/
3856
3857         string opname;
3858
3859         switch (op) {
3860         case Cut:
3861                 opname = _("cut");
3862                 break;
3863         case Copy:
3864                 opname = _("copy");
3865                 break;
3866         case Clear:
3867                 opname = _("clear");
3868                 break;
3869         }
3870
3871         /* if we're deleting something, and the mouse is still pressed,
3872            the thing we started a drag for will be gone when we release
3873            the mouse button(s). avoid this. see part 2 at the end of
3874            this function.
3875         */
3876
3877         if (op == Cut || op == Clear) {
3878                 if (_drag) {
3879                         _drag->item()->ungrab (0);
3880                         delete _drag;
3881                         _drag = 0;
3882                 }
3883         }
3884
3885         cut_buffer->clear ();
3886
3887         if (entered_marker) {
3888
3889                 /* cut/delete op while pointing at a marker */
3890
3891                 bool ignored;
3892                 Location* loc = find_location_from_marker (entered_marker, ignored);
3893
3894                 if (session && loc) {
3895                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3896                 }
3897
3898                 break_drag ();
3899                 delete _drag;
3900                 _drag = 0;
3901
3902                 return;
3903         }
3904
3905         if (internal_editing()) {
3906
3907                 switch (current_mouse_mode()) {
3908                 case MouseObject:
3909                 case MouseRange:
3910                         cut_copy_midi (op);
3911                         break;
3912                 default:
3913                         break;
3914                 }
3915
3916         } else {
3917
3918                 RegionSelection rs;
3919
3920                 /* we only want to cut regions if some are selected */
3921
3922                 if (!selection->regions.empty()) {
3923                         get_regions_for_action (rs, false, false);
3924                 }
3925
3926                 switch (current_mouse_mode()) {
3927                 case MouseObject:
3928                         if (!rs.empty() || !selection->points.empty()) {
3929
3930                                 begin_reversible_command (opname + _(" objects"));
3931
3932                                 if (!rs.empty()) {
3933                                         cut_copy_regions (op, rs);
3934
3935                                         if (op == Cut) {
3936                                                 selection->clear_regions ();
3937                                         }
3938                                 }
3939
3940                                 if (!selection->points.empty()) {
3941                                         cut_copy_points (op);
3942
3943                                         if (op == Cut) {
3944                                                 selection->clear_points ();
3945                                         }
3946                                 }
3947
3948                                 commit_reversible_command ();
3949                                 break; // terminate case statement here
3950                         }
3951                         if (!selection->time.empty()) {
3952                                 /* don't cause suprises */
3953                                 break;
3954                         }
3955                         // fall thru if there was nothing selected
3956
3957                 case MouseRange:
3958                         if (selection->time.empty()) {
3959                                 nframes64_t start, end;
3960                                 if (!get_edit_op_range (start, end)) {
3961                                         return;
3962                                 }
3963                                 selection->set ((TimeAxisView*) 0, start, end);
3964                         }
3965
3966                         begin_reversible_command (opname + _(" range"));
3967                         cut_copy_ranges (op);
3968                         commit_reversible_command ();
3969
3970                         if (op == Cut) {
3971                                 selection->clear_time ();
3972                         }
3973
3974                         break;
3975
3976                 default:
3977                         break;
3978                 }
3979         }
3980
3981         if (op == Cut || op == Clear) {
3982                 break_drag ();
3983                 delete _drag;
3984                 _drag = 0;
3985         }
3986 }
3987
3988 /** Cut, copy or clear selected automation points.
3989  * @param op Operation (Cut, Copy or Clear)
3990  */
3991 void
3992 Editor::cut_copy_points (CutCopyOp op)
3993 {
3994         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3995
3996                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3997
3998                 if (atv) {
3999                         atv->cut_copy_clear_objects (selection->points, op);
4000                 }
4001         }
4002 }
4003
4004 /** Cut, copy or clear selected automation points.
4005  * @param op Operation (Cut, Copy or Clear)
4006  */
4007 void
4008 Editor::cut_copy_midi (CutCopyOp op)
4009 {
4010         for (MidiRegionSelection::iterator i = selection->midi_regions.begin(); i != selection->midi_regions.end(); ++i) {
4011                 MidiRegionView* mrv = *i;
4012                 mrv->cut_copy_clear (op);
4013         }
4014 }
4015
4016 struct PlaylistState {
4017     boost::shared_ptr<Playlist> playlist;
4018     XMLNode*  before;
4019 };
4020
4021 struct lt_playlist {
4022     bool operator () (const PlaylistState& a, const PlaylistState& b) {
4023             return a.playlist < b.playlist;
4024     }
4025 };
4026
4027 struct PlaylistMapping {
4028     TimeAxisView* tv;
4029     boost::shared_ptr<Playlist> pl;
4030
4031     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
4032 };
4033
4034 /** Remove `clicked_regionview' */
4035 void
4036 Editor::remove_clicked_region ()
4037 {
4038         if (clicked_routeview == 0 || clicked_regionview == 0) {
4039                 return;
4040         }
4041
4042         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
4043
4044         begin_reversible_command (_("remove region"));
4045         XMLNode &before = playlist->get_state();
4046         playlist->remove_region (clicked_regionview->region());
4047         XMLNode &after = playlist->get_state();
4048         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4049         commit_reversible_command ();
4050 }
4051
4052
4053 /** Remove the selected regions */
4054 void
4055 Editor::remove_selected_regions ()
4056 {
4057         RegionSelection rs;
4058         get_regions_for_action (rs);
4059
4060         if (!session) {
4061                 return;
4062         }
4063
4064         if (rs.empty()) {
4065                 return;
4066         }
4067
4068         begin_reversible_command (_("remove region"));
4069
4070         list<boost::shared_ptr<Region> > regions_to_remove;
4071
4072         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4073                 // we can't just remove the region(s) in this loop because
4074                 // this removes them from the RegionSelection, and they thus
4075                 // disappear from underneath the iterator, and the ++i above
4076                 // SEGVs in a puzzling fashion.
4077
4078                 // so, first iterate over the regions to be removed from rs and
4079                 // add them to the regions_to_remove list, and then
4080                 // iterate over the list to actually remove them.
4081
4082                 regions_to_remove.push_back ((*i)->region());
4083         }
4084
4085         vector<PlaylistState> playlists;
4086
4087         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
4088
4089                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
4090
4091                 if (!playlist) {
4092                         // is this check necessary?
4093                         continue;
4094                 }
4095
4096                 vector<PlaylistState>::iterator i;
4097
4098                 //only take state if this is a new playlist.
4099                 for (i = playlists.begin(); i != playlists.end(); ++i) {
4100                         if ((*i).playlist == playlist) {
4101                                 break;
4102                         }
4103                 }
4104
4105                 if (i == playlists.end()) {
4106
4107                         PlaylistState before;
4108                         before.playlist = playlist;
4109                         before.before = &playlist->get_state();
4110
4111                         playlist->freeze ();
4112                         playlists.push_back(before);
4113                 }
4114
4115                 playlist->remove_region (*rl);
4116         }
4117
4118         vector<PlaylistState>::iterator pl;
4119
4120         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
4121                 (*pl).playlist->thaw ();
4122                 session->add_command(new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4123         }
4124
4125         commit_reversible_command ();
4126 }
4127
4128 /** Cut, copy or clear selected regions.
4129  * @param op Operation (Cut, Copy or Clear)
4130  */
4131 void
4132 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
4133 {
4134         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
4135            a map when we want ordered access to both elements. i think.
4136         */
4137
4138         vector<PlaylistMapping> pmap;
4139
4140         nframes64_t first_position = max_frames;
4141
4142         set<PlaylistState, lt_playlist> freezelist;
4143         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
4144
4145         /* get ordering correct before we cut/copy */
4146
4147         rs.sort_by_position_and_track ();
4148
4149         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4150
4151                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
4152
4153                 if (op == Cut || op == Clear) {
4154                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4155
4156                         if (pl) {
4157                                 set<PlaylistState, lt_playlist>::iterator fl;
4158
4159                                 //only take state if this is a new playlist.
4160                                 for (fl = freezelist.begin(); fl != freezelist.end(); ++fl) {
4161                                         if ((*fl).playlist == pl) {
4162                                                 break;
4163                                         }
4164                                 }
4165
4166                                 if (fl == freezelist.end()) {
4167                                         PlaylistState before;
4168                                         before.playlist = pl;
4169                                         before.before = &pl->get_state();
4170                                         pl->freeze ();
4171                                         insert_result = freezelist.insert (before);
4172                                 }
4173                         }
4174                 }
4175
4176                 TimeAxisView* tv = &(*x)->get_trackview();
4177                 vector<PlaylistMapping>::iterator z;
4178
4179                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4180                         if ((*z).tv == tv) {
4181                                 break;
4182                         }
4183                 }
4184
4185                 if (z == pmap.end()) {
4186                         pmap.push_back (PlaylistMapping (tv));
4187                 }
4188         }
4189
4190         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
4191
4192                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4193
4194                 if (!pl) {
4195                         /* impossible, but this handles it for the future */
4196                         continue;
4197                 }
4198
4199                 TimeAxisView& tv = (*x)->get_trackview();
4200                 boost::shared_ptr<Playlist> npl;
4201                 RegionSelection::iterator tmp;
4202
4203                 tmp = x;
4204                 ++tmp;
4205
4206                 vector<PlaylistMapping>::iterator z;
4207
4208                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4209                         if ((*z).tv == &tv) {
4210                                 break;
4211                         }
4212                 }
4213
4214                 assert (z != pmap.end());
4215
4216                 if (!(*z).pl) {
4217                         npl = PlaylistFactory::create (pl->data_type(), *session, "cutlist", true);
4218                         npl->freeze();
4219                         (*z).pl = npl;
4220                 } else {
4221                         npl = (*z).pl;
4222                 }
4223
4224                 boost::shared_ptr<Region> r = (*x)->region();
4225                 boost::shared_ptr<Region> _xx;
4226
4227                 assert (r != 0);
4228
4229                 switch (op) {
4230                 case Cut:
4231                         _xx = RegionFactory::create (r);
4232                         npl->add_region (_xx, r->position() - first_position);
4233                         pl->remove_region (r);
4234                         break;
4235
4236                 case Copy:
4237                         /* copy region before adding, so we're not putting same object into two different playlists */
4238                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
4239                         break;
4240
4241                 case Clear:
4242                         pl->remove_region (r);
4243                         break;
4244                 }
4245
4246                 x = tmp;
4247         }
4248
4249         list<boost::shared_ptr<Playlist> > foo;
4250
4251         /* the pmap is in the same order as the tracks in which selected regions occured */
4252
4253         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4254                 (*i).pl->thaw();
4255                 foo.push_back ((*i).pl);
4256         }
4257
4258
4259         if (!foo.empty()) {
4260                 cut_buffer->set (foo);
4261         }
4262
4263         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4264                 (*pl).playlist->thaw ();
4265                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4266         }
4267 }
4268
4269 void
4270 Editor::cut_copy_ranges (CutCopyOp op)
4271 {
4272         TrackSelection* ts;
4273         TrackSelection entered;
4274
4275         if (selection->tracks.empty()) {
4276                 if (!entered_track) {
4277                         return;
4278                 }
4279                 entered.push_back (entered_track);
4280                 ts = &entered;
4281         } else {
4282                 ts = &selection->tracks;
4283         }
4284
4285         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
4286                 (*i)->cut_copy_clear (*selection, op);
4287         }
4288 }
4289
4290 void
4291 Editor::paste (float times)
4292 {
4293         paste_internal (get_preferred_edit_position(), times);
4294 }
4295
4296 void
4297 Editor::mouse_paste ()
4298 {
4299         nframes64_t where;
4300         bool ignored;
4301
4302         if (!mouse_frame (where, ignored)) {
4303                 return;
4304         }
4305
4306         snap_to (where);
4307         paste_internal (where, 1);
4308 }
4309
4310 void
4311 Editor::paste_internal (nframes64_t position, float times)
4312 {
4313         bool commit = false;
4314
4315         if (internal_editing()) {
4316                 if (cut_buffer->midi_notes.empty()) {
4317                         return;
4318                 }
4319         } else {
4320                 if (cut_buffer->empty()) {
4321                         return;
4322                 }
4323         }
4324
4325         if (position == max_frames) {
4326                 position = get_preferred_edit_position();
4327         }
4328
4329         begin_reversible_command (_("paste"));
4330
4331         TrackSelection ts;
4332         TrackSelection::iterator i;
4333         size_t nth;
4334
4335         /* get everything in the correct order */
4336
4337         if (!selection->tracks.empty()) {
4338                 sort_track_selection ();
4339                 ts = selection->tracks;
4340         } else if (entered_track) {
4341                 ts.push_back (entered_track);
4342         }
4343
4344         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4345
4346                 /* undo/redo is handled by individual tracks/regions */
4347
4348                 if (internal_editing()) {
4349
4350                         RegionSelection rs;
4351                         RegionSelection::iterator r;
4352                         MidiNoteSelection::iterator cb;
4353
4354                         get_regions_at (rs, position, ts);
4355
4356                         for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
4357                              cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
4358                                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
4359                                 if (mrv) {
4360                                         mrv->paste (position, times, **cb);
4361                                         ++cb;
4362                                 }
4363                         }
4364
4365                 } else {
4366
4367                         if ((*i)->paste (position, times, *cut_buffer, nth)) {
4368                                 commit = true;
4369                         }
4370                 }
4371         }
4372
4373         if (commit) {
4374                 commit_reversible_command ();
4375         }
4376 }
4377
4378 void
4379 Editor::paste_named_selection (float times)
4380 {
4381         TrackSelection::iterator t;
4382
4383         Glib::RefPtr<TreeSelection> selected = named_selection_display.get_selection();
4384
4385         if (selected->count_selected_rows() != 1 || selection->tracks.empty()) {
4386                 return;
4387         }
4388
4389         TreeModel::iterator i = selected->get_selected();
4390         NamedSelection* ns = (*i)[named_selection_columns.selection];
4391
4392         list<boost::shared_ptr<Playlist> >::iterator chunk;
4393         list<boost::shared_ptr<Playlist> >::iterator tmp;
4394
4395         chunk = ns->playlists.begin();
4396
4397         begin_reversible_command (_("paste chunk"));
4398
4399         sort_track_selection ();
4400
4401         for (t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
4402
4403                 RouteTimeAxisView* rtv;
4404                 boost::shared_ptr<Playlist> pl;
4405                 boost::shared_ptr<AudioPlaylist> apl;
4406
4407                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*t)) == 0) {
4408                         continue;
4409                 }
4410
4411                 if ((pl = rtv->playlist()) == 0) {
4412                         continue;
4413                 }
4414
4415                 if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
4416                         continue;
4417                 }
4418
4419                 tmp = chunk;
4420                 ++tmp;
4421
4422                 XMLNode &before = apl->get_state();
4423                 apl->paste (*chunk, get_preferred_edit_position(), times);
4424                 session->add_command(new MementoCommand<AudioPlaylist>(*apl, &before, &apl->get_state()));
4425
4426                 if (tmp != ns->playlists.end()) {
4427                         chunk = tmp;
4428                 }
4429         }
4430
4431         commit_reversible_command();
4432 }
4433
4434 void
4435 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4436 {
4437         boost::shared_ptr<Playlist> playlist;
4438         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4439         RegionSelection foo;
4440
4441         begin_reversible_command (_("duplicate region"));
4442
4443         selection->clear_regions ();
4444
4445         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4446
4447                 boost::shared_ptr<Region> r ((*i)->region());
4448
4449                 TimeAxisView& tv = (*i)->get_time_axis_view();
4450                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4451                 latest_regionviews.clear ();
4452                 sigc::connection c = rtv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4453
4454                 playlist = (*i)->region()->playlist();
4455                 XMLNode &before = playlist->get_state();
4456                 playlist->duplicate (r, r->last_frame(), times);
4457                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4458
4459                 c.disconnect ();
4460
4461                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4462         }
4463
4464         commit_reversible_command ();
4465
4466         if (!foo.empty()) {
4467                 selection->set (foo);
4468         }
4469 }
4470
4471 void
4472 Editor::duplicate_selection (float times)
4473 {
4474         if (selection->time.empty() || selection->tracks.empty()) {
4475                 return;
4476         }
4477
4478         boost::shared_ptr<Playlist> playlist;
4479         vector<boost::shared_ptr<Region> > new_regions;
4480         vector<boost::shared_ptr<Region> >::iterator ri;
4481
4482         create_region_from_selection (new_regions);
4483
4484         if (new_regions.empty()) {
4485                 return;
4486         }
4487
4488         begin_reversible_command (_("duplicate selection"));
4489
4490         ri = new_regions.begin();
4491
4492         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4493                 if ((playlist = (*i)->playlist()) == 0) {
4494                         continue;
4495                 }
4496                 XMLNode &before = playlist->get_state();
4497                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4498                 XMLNode &after = playlist->get_state();
4499                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4500
4501                 ++ri;
4502                 if (ri == new_regions.end()) {
4503                         --ri;
4504                 }
4505         }
4506
4507         commit_reversible_command ();
4508 }
4509
4510 void
4511 Editor::reset_point_selection ()
4512 {
4513         /* reset all selected points to the relevant default value */
4514
4515         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4516
4517                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4518
4519                 if (atv) {
4520                         atv->reset_objects (selection->points);
4521                 }
4522         }
4523 }
4524
4525 void
4526 Editor::center_playhead ()
4527 {
4528         float page = _canvas_width * frames_per_unit;
4529         center_screen_internal (playhead_cursor->current_frame, page);
4530 }
4531
4532 void
4533 Editor::center_edit_point ()
4534 {
4535         float page = _canvas_width * frames_per_unit;
4536         center_screen_internal (get_preferred_edit_position(), page);
4537 }
4538
4539 void
4540 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4541 {
4542         begin_reversible_command (_("clear playlist"));
4543         XMLNode &before = playlist->get_state();
4544         playlist->clear ();
4545         XMLNode &after = playlist->get_state();
4546         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4547         commit_reversible_command ();
4548 }
4549
4550 void
4551 Editor::nudge_track (bool use_edit, bool forwards)
4552 {
4553         boost::shared_ptr<Playlist> playlist;
4554         nframes64_t distance;
4555         nframes64_t next_distance;
4556         nframes64_t start;
4557
4558         if (use_edit) {
4559                 start = get_preferred_edit_position();
4560         } else {
4561                 start = 0;
4562         }
4563
4564         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4565                 return;
4566         }
4567
4568         if (selection->tracks.empty()) {
4569                 return;
4570         }
4571
4572         begin_reversible_command (_("nudge track"));
4573
4574         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4575
4576                 if ((playlist = (*i)->playlist()) == 0) {
4577                         continue;
4578                 }
4579
4580                 XMLNode &before = playlist->get_state();
4581                 playlist->nudge_after (start, distance, forwards);
4582                 XMLNode &after = playlist->get_state();
4583                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4584         }
4585
4586         commit_reversible_command ();
4587 }
4588
4589 void
4590 Editor::remove_last_capture ()
4591 {
4592         vector<string> choices;
4593         string prompt;
4594
4595         if (!session) {
4596                 return;
4597         }
4598
4599         if (Config->get_verify_remove_last_capture()) {
4600                 prompt  = _("Do you really want to destroy the last capture?"
4601                             "\n(This is destructive and cannot be undone)");
4602
4603                 choices.push_back (_("No, do nothing."));
4604                 choices.push_back (_("Yes, destroy it."));
4605
4606                 Gtkmm2ext::Choice prompter (prompt, choices);
4607
4608                 if (prompter.run () == 1) {
4609                         session->remove_last_capture ();
4610                 }
4611
4612         } else {
4613                 session->remove_last_capture();
4614         }
4615 }
4616
4617 void
4618 Editor::normalize_region ()
4619 {
4620         if (!session) {
4621                 return;
4622         }
4623
4624         RegionSelection rs;
4625         get_regions_for_action (rs);
4626
4627         if (rs.empty()) {
4628                 return;
4629         }
4630
4631         Dialog dialog (rs.size() > 1 ? _("Normalize regions") : _("Normalize region"));
4632         HBox hbox;
4633         hbox.pack_start (*manage (new Label (_("Normalize to:"))));
4634         SpinButton spin (0.2, 2);
4635         spin.set_range (-112, 0);
4636         spin.set_increments (0.1, 1);
4637         spin.set_value (0);
4638         hbox.pack_start (spin);
4639         spin.set_value (_last_normalization_value);
4640         hbox.pack_start (*manage (new Label (_("dbFS"))));
4641         hbox.show_all ();
4642         dialog.get_vbox()->pack_start (hbox);
4643         dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
4644         dialog.add_button (_("Normalize"), RESPONSE_ACCEPT);
4645
4646         if (dialog.run () == RESPONSE_CANCEL) {
4647                 return;
4648         }
4649
4650         begin_reversible_command (_("normalize"));
4651
4652         track_canvas->get_window()->set_cursor (*wait_cursor);
4653         gdk_flush ();
4654
4655         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4656                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4657                 if (!arv)
4658                         continue;
4659                 XMLNode &before = arv->region()->get_state();
4660                 arv->audio_region()->normalize_to (spin.get_value());
4661                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4662         }
4663
4664         commit_reversible_command ();
4665         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4666
4667         _last_normalization_value = spin.get_value ();
4668 }
4669
4670
4671 void
4672 Editor::reset_region_scale_amplitude ()
4673 {
4674         if (!session) {
4675                 return;
4676         }
4677
4678         RegionSelection rs;
4679
4680         get_regions_for_action (rs);
4681
4682         if (rs.empty()) {
4683                 return;
4684         }
4685
4686         begin_reversible_command ("reset gain");
4687
4688         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4689                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4690                 if (!arv)
4691                         continue;
4692                 XMLNode &before = arv->region()->get_state();
4693                 arv->audio_region()->set_scale_amplitude (1.0f);
4694                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4695         }
4696
4697         commit_reversible_command ();
4698 }
4699
4700 void
4701 Editor::adjust_region_scale_amplitude (bool up)
4702 {
4703         if (!session) {
4704                 return;
4705         }
4706
4707         RegionSelection rs;
4708
4709         get_regions_for_action (rs);
4710
4711         if (rs.empty()) {
4712                 return;
4713         }
4714
4715         begin_reversible_command ("denormalize");
4716
4717         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4718                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4719                 if (!arv)
4720                         continue;
4721                 XMLNode &before = arv->region()->get_state();
4722
4723                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4724
4725                 if (up) {
4726                         fraction += 0.05;
4727                         fraction = min (fraction, 1.0);
4728                 } else {
4729                         fraction -= 0.05;
4730                         fraction = max (fraction, 0.0);
4731                 }
4732
4733                 if (!up && fraction <= 0) {
4734                         continue;
4735                 }
4736
4737                 fraction = slider_position_to_gain (fraction);
4738
4739                 if (up && fraction >= 2.0) {
4740                         continue;
4741                 }
4742
4743                 arv->audio_region()->set_scale_amplitude (fraction);
4744                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4745         }
4746
4747         commit_reversible_command ();
4748 }
4749
4750
4751 void
4752 Editor::reverse_region ()
4753 {
4754         if (!session) {
4755                 return;
4756         }
4757
4758         Reverse rev (*session);
4759         apply_filter (rev, _("reverse regions"));
4760 }
4761
4762 void
4763 Editor::strip_region_silence ()
4764 {
4765         if (!session) {
4766                 return;
4767         }
4768
4769         RegionSelection rs;
4770         get_regions_for_action (rs);
4771
4772         if (rs.empty()) {
4773                 return;
4774         }
4775
4776         std::list<boost::shared_ptr<AudioRegion> > ar;
4777
4778         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4779                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*i);
4780                 if (arv) {
4781                         ar.push_back (arv->audio_region ());
4782                 }
4783         }
4784
4785         StripSilenceDialog d (ar);
4786         int const r = d.run ();
4787
4788         if (r == Gtk::RESPONSE_OK) {
4789                 StripSilence s (*session, d.threshold (), d.minimum_length (), d.fade_length ());
4790                 apply_filter (s, _("strip silence"));
4791         }
4792 }
4793
4794 Command*
4795 Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv)
4796 {
4797         Evoral::Sequence<Evoral::MusicalTime>::Notes selected;
4798         mrv.selection_as_notelist (selected);
4799
4800         vector<Evoral::Sequence<Evoral::MusicalTime>::Notes> v;
4801         v.push_back (selected);
4802
4803         return op (mrv.midi_region()->model(), v);
4804 }
4805
4806 void
4807 Editor::apply_midi_note_edit_op (MidiOperator& op)
4808 {
4809         RegionSelection rs;
4810         Command* cmd;
4811
4812         get_regions_for_action (rs);
4813
4814         if (rs.empty()) {
4815                 return;
4816         }
4817
4818         begin_reversible_command (op.name ());
4819
4820         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4821                 RegionSelection::iterator tmp = r;
4822                 ++tmp;
4823
4824                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4825
4826                 if (mrv) {
4827                         cmd = apply_midi_note_edit_op_to_region (op, *mrv);
4828                         if (cmd) {
4829                                 (*cmd)();
4830                                 session->add_command (cmd);
4831                         }
4832                 }
4833
4834                 r = tmp;
4835         }
4836
4837         commit_reversible_command ();
4838         rs.clear ();
4839 }
4840
4841 void
4842 Editor::quantize_region ()
4843 {
4844         if (!session) {
4845                 return;
4846         }
4847
4848         QuantizeDialog* qd = new QuantizeDialog (*this);
4849
4850         qd->present ();
4851         qd->run ();
4852         qd->hide ();
4853
4854         Quantize quant (*session, Plain,
4855                         qd->snap_start(), qd->snap_end(),
4856                         qd->start_grid_size(), qd->end_grid_size(),
4857                         qd->strength(), qd->swing(), qd->threshold());
4858
4859         apply_midi_note_edit_op (quant);
4860 }
4861
4862 void
4863 Editor::apply_filter (Filter& filter, string command)
4864 {
4865         RegionSelection rs;
4866
4867         get_regions_for_action (rs);
4868
4869         if (rs.empty()) {
4870                 return;
4871         }
4872
4873         begin_reversible_command (command);
4874
4875         track_canvas->get_window()->set_cursor (*wait_cursor);
4876         gdk_flush ();
4877
4878         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4879                 RegionSelection::iterator tmp = r;
4880                 ++tmp;
4881
4882                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4883                 if (arv) {
4884                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4885
4886                         if (arv->audio_region()->apply (filter) == 0) {
4887
4888                                 XMLNode &before = playlist->get_state();
4889
4890                                 if (filter.results.empty ()) {
4891
4892                                         /* no regions returned; remove the old one */
4893                                         playlist->remove_region (arv->region ());
4894
4895                                 } else {
4896
4897                                         std::vector<boost::shared_ptr<Region> >::iterator res = filter.results.begin ();
4898
4899                                         /* first region replaces the old one */
4900                                         playlist->replace_region (arv->region(), *res, (*res)->position());
4901                                         ++res;
4902
4903                                         /* add the rest */
4904                                         while (res != filter.results.end()) {
4905                                                 playlist->add_region (*res, (*res)->position());
4906                                                 ++res;
4907                                         }
4908
4909                                 }
4910
4911                                 XMLNode &after = playlist->get_state();
4912                                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4913                         } else {
4914                                 goto out;
4915                         }
4916                 }
4917
4918                 r = tmp;
4919         }
4920
4921         commit_reversible_command ();
4922         rs.clear ();
4923
4924   out:
4925         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4926 }
4927
4928 void
4929 Editor::region_selection_op (void (Region::*pmf)(void))
4930 {
4931         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4932                 Region* region = (*i)->region().get();
4933                 (region->*pmf)();
4934         }
4935 }
4936
4937
4938 void
4939 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4940 {
4941         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4942                 Region* region = (*i)->region().get();
4943                 (region->*pmf)(arg);
4944         }
4945 }
4946
4947 void
4948 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4949 {
4950         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4951                 Region* region = (*i)->region().get();
4952                 (region->*pmf)(yn);
4953         }
4954 }
4955
4956 void
4957 Editor::external_edit_region ()
4958 {
4959         /* more to come */
4960 }
4961
4962 void
4963 Editor::brush (nframes64_t pos)
4964 {
4965         RegionSelection sel;
4966         RegionSelection rs;
4967
4968         get_regions_for_action (rs);
4969
4970         snap_to (pos);
4971
4972         if (rs.empty()) {
4973                 return;
4974         }
4975
4976         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4977                 mouse_brush_insert_region ((*i), pos);
4978         }
4979 }
4980
4981 void
4982 Editor::reset_region_gain_envelopes ()
4983 {
4984         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4985
4986         if (!session || rs.empty()) {
4987                 return;
4988         }
4989
4990         session->begin_reversible_command (_("reset region gain"));
4991
4992         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4993                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4994                 if (arv) {
4995                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
4996                         XMLNode& before (alist->get_state());
4997
4998                         arv->audio_region()->set_default_envelope ();
4999                         session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
5000                 }
5001         }
5002
5003         session->commit_reversible_command ();
5004 }
5005
5006 void
5007 Editor::toggle_gain_envelope_visibility ()
5008 {
5009         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5010
5011         if (!session || rs.empty()) {
5012                 return;
5013         }
5014
5015         session->begin_reversible_command (_("region gain envelope visible"));
5016
5017         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5018                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5019                 if (arv) {
5020                         XMLNode &before = arv->region()->get_state ();
5021                         arv->set_envelope_visible (!arv->envelope_visible());
5022                         XMLNode &after = arv->region()->get_state ();
5023                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
5024                 }
5025         }
5026
5027         session->commit_reversible_command ();
5028 }
5029
5030 void
5031 Editor::toggle_gain_envelope_active ()
5032 {
5033         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5034
5035         if (!session || rs.empty()) {
5036                 return;
5037         }
5038
5039         session->begin_reversible_command (_("region gain envelope active"));
5040
5041         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5042                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5043                 if (arv) {
5044                         XMLNode &before = arv->region()->get_state ();
5045                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
5046                         XMLNode &after = arv->region()->get_state ();
5047                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
5048                 }
5049         }
5050
5051         session->commit_reversible_command ();
5052 }
5053
5054 void
5055 Editor::toggle_region_lock ()
5056 {
5057         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5058
5059         if (!session || rs.empty()) {
5060                 return;
5061         }
5062
5063         session->begin_reversible_command (_("region lock"));
5064
5065         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5066                 XMLNode &before = (*i)->region()->get_state ();
5067                 (*i)->region()->set_locked (!(*i)->region()->locked());
5068                 XMLNode &after = (*i)->region()->get_state ();
5069                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5070         }
5071
5072         session->commit_reversible_command ();
5073 }
5074
5075 void
5076 Editor::set_region_lock_style (Region::PositionLockStyle ps)
5077 {
5078         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5079
5080         if (!session || rs.empty()) {
5081                 return;
5082         }
5083
5084         session->begin_reversible_command (_("region lock style"));
5085
5086         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5087                 XMLNode &before = (*i)->region()->get_state ();
5088                 (*i)->region()->set_position_lock_style (ps);
5089                 XMLNode &after = (*i)->region()->get_state ();
5090                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5091         }
5092
5093         session->commit_reversible_command ();
5094 }
5095
5096
5097 void
5098 Editor::toggle_region_mute ()
5099 {
5100         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5101
5102         if (!session || rs.empty()) {
5103                 return;
5104         }
5105
5106         session->begin_reversible_command (_("region mute"));
5107
5108         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5109                 XMLNode &before = (*i)->region()->get_state ();
5110                 (*i)->region()->set_muted (!(*i)->region()->muted());
5111                 XMLNode &after = (*i)->region()->get_state ();
5112                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5113         }
5114
5115         session->commit_reversible_command ();
5116 }
5117
5118 void
5119 Editor::toggle_region_opaque ()
5120 {
5121         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5122
5123         if (!session || rs.empty()) {
5124                 return;
5125         }
5126
5127         session->begin_reversible_command (_("region opacity"));
5128
5129         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5130                 XMLNode &before = (*i)->region()->get_state ();
5131                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
5132                 XMLNode &after = (*i)->region()->get_state ();
5133                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5134         }
5135
5136         session->commit_reversible_command ();
5137 }
5138
5139 void
5140 Editor::toggle_record_enable ()
5141 {
5142         bool new_state = false;
5143         bool first = true;
5144         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5145                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5146                 if (!rtav)
5147                         continue;
5148                 if (!rtav->is_track())
5149                         continue;
5150
5151                 if (first) {
5152                         new_state = !rtav->track()->record_enabled();
5153                         first = false;
5154                 }
5155
5156                 rtav->track()->set_record_enable(new_state, this);
5157         }
5158 }
5159
5160
5161 void
5162 Editor::set_fade_length (bool in)
5163 {
5164         RegionSelection rs;
5165
5166         get_regions_for_action (rs, true);
5167
5168         if (rs.empty()) {
5169                 return;
5170         }
5171
5172         /* we need a region to measure the offset from the start */
5173
5174         RegionView* rv = rs.front ();
5175
5176         nframes64_t pos = get_preferred_edit_position();
5177         nframes64_t len;
5178         char* cmd;
5179
5180         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
5181                 /* edit point is outside the relevant region */
5182                 return;
5183         }
5184
5185         if (in) {
5186                 if (pos <= rv->region()->position()) {
5187                         /* can't do it */
5188                         return;
5189                 }
5190                 len = pos - rv->region()->position();
5191                 cmd = _("set fade in length");
5192         } else {
5193                 if (pos >= rv->region()->last_frame()) {
5194                         /* can't do it */
5195                         return;
5196                 }
5197                 len = rv->region()->last_frame() - pos;
5198                 cmd = _("set fade out length");
5199         }
5200
5201         begin_reversible_command (cmd);
5202
5203         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5204                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5205
5206                 if (!tmp) {
5207                         return;
5208                 }
5209
5210                 boost::shared_ptr<AutomationList> alist;
5211                 if (in) {
5212                         alist = tmp->audio_region()->fade_in();
5213                 } else {
5214                         alist = tmp->audio_region()->fade_out();
5215                 }
5216
5217                 XMLNode &before = alist->get_state();
5218
5219                 if (in) {
5220                         tmp->audio_region()->set_fade_in_length (len);
5221                         tmp->audio_region()->set_fade_in_active (true);
5222                 } else {
5223                         tmp->audio_region()->set_fade_out_length (len);
5224                         tmp->audio_region()->set_fade_out_active (true);
5225                 }
5226
5227                 XMLNode &after = alist->get_state();
5228                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
5229         }
5230
5231         commit_reversible_command ();
5232 }
5233
5234 void
5235 Editor::toggle_fade_active (bool in)
5236 {
5237         RegionSelection rs;
5238
5239         get_regions_for_action (rs);
5240
5241         if (rs.empty()) {
5242                 return;
5243         }
5244
5245         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
5246         bool have_switch = false;
5247         bool yn = false;
5248
5249         begin_reversible_command (cmd);
5250
5251         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5252                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5253
5254                 if (!tmp) {
5255                         return;
5256                 }
5257
5258                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
5259
5260                 /* make the behaviour consistent across all regions */
5261
5262                 if (!have_switch) {
5263                         if (in) {
5264                                 yn = region->fade_in_active();
5265                         } else {
5266                                 yn = region->fade_out_active();
5267                         }
5268                         have_switch = true;
5269                 }
5270
5271                 XMLNode &before = region->get_state();
5272                 if (in) {
5273                         region->set_fade_in_active (!yn);
5274                 } else {
5275                         region->set_fade_out_active (!yn);
5276                 }
5277                 XMLNode &after = region->get_state();
5278                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
5279         }
5280
5281         commit_reversible_command ();
5282 }
5283
5284 void
5285 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
5286 {
5287         RegionSelection rs;
5288
5289         get_regions_for_action (rs);
5290
5291         if (rs.empty()) {
5292                 return;
5293         }
5294
5295         begin_reversible_command (_("set fade in shape"));
5296
5297         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5298                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5299
5300                 if (!tmp) {
5301                         return;
5302                 }
5303
5304                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
5305                 XMLNode &before = alist->get_state();
5306
5307                 tmp->audio_region()->set_fade_in_shape (shape);
5308
5309                 XMLNode &after = alist->get_state();
5310                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5311         }
5312
5313         commit_reversible_command ();
5314
5315 }
5316
5317 void
5318 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
5319 {
5320         RegionSelection rs;
5321
5322         get_regions_for_action (rs);
5323
5324         if (rs.empty()) {
5325                 return;
5326         }
5327
5328         begin_reversible_command (_("set fade out shape"));
5329
5330         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5331                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5332
5333                 if (!tmp) {
5334                         return;
5335                 }
5336
5337                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
5338                 XMLNode &before = alist->get_state();
5339
5340                 tmp->audio_region()->set_fade_out_shape (shape);
5341
5342                 XMLNode &after = alist->get_state();
5343                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5344         }
5345
5346         commit_reversible_command ();
5347 }
5348
5349 void
5350 Editor::set_fade_in_active (bool yn)
5351 {
5352         RegionSelection rs;
5353
5354         get_regions_for_action (rs);
5355
5356         if (rs.empty()) {
5357                 return;
5358         }
5359
5360         begin_reversible_command (_("set fade in active"));
5361
5362         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5363                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5364
5365                 if (!tmp) {
5366                         return;
5367                 }
5368
5369
5370                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5371
5372                 XMLNode &before = ar->get_state();
5373
5374                 ar->set_fade_in_active (yn);
5375
5376                 XMLNode &after = ar->get_state();
5377                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5378         }
5379
5380         commit_reversible_command ();
5381 }
5382
5383 void
5384 Editor::set_fade_out_active (bool yn)
5385 {
5386         RegionSelection rs;
5387
5388         get_regions_for_action (rs);
5389
5390         if (rs.empty()) {
5391                 return;
5392         }
5393
5394         begin_reversible_command (_("set fade out active"));
5395
5396         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5397                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5398
5399                 if (!tmp) {
5400                         return;
5401                 }
5402
5403                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5404
5405                 XMLNode &before = ar->get_state();
5406
5407                 ar->set_fade_out_active (yn);
5408
5409                 XMLNode &after = ar->get_state();
5410                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5411         }
5412
5413         commit_reversible_command ();
5414 }
5415
5416 void
5417 Editor::toggle_selected_region_fades (int dir)
5418 {
5419         RegionSelection rs;
5420         RegionSelection::iterator i;
5421         boost::shared_ptr<AudioRegion> ar;
5422         bool yn;
5423
5424         get_regions_for_action (rs);
5425
5426         if (rs.empty()) {
5427                 return;
5428         }
5429
5430         for (i = rs.begin(); i != rs.end(); ++i) {
5431                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5432                         if (dir == -1) {
5433                                 yn = ar->fade_out_active ();
5434                         } else {
5435                                 yn = ar->fade_in_active ();
5436                         }
5437                         break;
5438                 }
5439         }
5440
5441         if (i == rs.end()) {
5442                 return;
5443         }
5444
5445         /* XXX should this undo-able? */
5446
5447         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5448                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5449                         continue;
5450                 }
5451                 if (dir == 1 || dir == 0) {
5452                         ar->set_fade_in_active (!yn);
5453                 }
5454
5455                 if (dir == -1 || dir == 0) {
5456                         ar->set_fade_out_active (!yn);
5457                 }
5458         }
5459 }
5460
5461
5462 /** Update region fade visibility after its configuration has been changed */
5463 void
5464 Editor::update_region_fade_visibility ()
5465 {
5466         bool _fade_visibility = session->config.get_show_region_fades ();
5467
5468         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5469                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5470                 if (v) {
5471                         if (_fade_visibility) {
5472                                 v->audio_view()->show_all_fades ();
5473                         } else {
5474                                 v->audio_view()->hide_all_fades ();
5475                         }
5476                 }
5477         }
5478 }
5479
5480 /** Update crossfade visibility after its configuration has been changed */
5481 void
5482 Editor::update_xfade_visibility ()
5483 {
5484         _xfade_visibility = session->config.get_xfades_visible ();
5485
5486         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5487                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5488                 if (v) {
5489                         if (_xfade_visibility) {
5490                                 v->show_all_xfades ();
5491                         } else {
5492                                 v->hide_all_xfades ();
5493                         }
5494                 }
5495         }
5496 }
5497
5498 void
5499 Editor::set_edit_point ()
5500 {
5501         nframes64_t where;
5502         bool ignored;
5503
5504         if (!mouse_frame (where, ignored)) {
5505                 return;
5506         }
5507
5508         snap_to (where);
5509
5510         if (selection->markers.empty()) {
5511
5512                 mouse_add_new_marker (where);
5513
5514         } else {
5515                 bool ignored;
5516
5517                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5518
5519                 if (loc) {
5520                         loc->move_to (where);
5521                 }
5522         }
5523 }
5524
5525 void
5526 Editor::set_playhead_cursor ()
5527 {
5528         if (entered_marker) {
5529                 session->request_locate (entered_marker->position(), session->transport_rolling());
5530         } else {
5531                 nframes64_t where;
5532                 bool ignored;
5533
5534                 if (!mouse_frame (where, ignored)) {
5535                         return;
5536                 }
5537
5538                 snap_to (where);
5539
5540                 if (session) {
5541                         session->request_locate (where, session->transport_rolling());
5542                 }
5543         }
5544 }
5545
5546 void
5547 Editor::split ()
5548 {
5549         RegionSelection rs;
5550
5551         get_regions_for_action (rs, true);
5552
5553         nframes64_t where = get_preferred_edit_position();
5554
5555         if (rs.empty()) {
5556                 return;
5557         }
5558
5559         split_regions_at (where, rs);
5560 }
5561
5562 void
5563 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
5564 {
5565         if (entered_track && mouse_mode == MouseObject) {
5566                 if (!selection->tracks.empty()) {
5567                         if (!selection->selected (entered_track)) {
5568                                 selection->add (entered_track);
5569                         }
5570                 } else {
5571                         /* there is no selection, but this operation requires/prefers selected objects */
5572
5573                         if (op_really_wants_one_track_if_none_are_selected) {
5574                                 selection->set (entered_track);
5575                         }
5576                 }
5577         }
5578 }
5579
5580 struct EditorOrderRouteSorter {
5581     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5582             /* use of ">" forces the correct sort order */
5583             return a->order_key ("editor") < b->order_key ("editor");
5584     }
5585 };
5586
5587 void
5588 Editor::select_next_route()
5589 {
5590         if (selection->tracks.empty()) {
5591                 selection->set (track_views.front());
5592                 return;
5593         }
5594
5595         TimeAxisView* current = selection->tracks.front();
5596
5597         RouteUI *rui;
5598         do {
5599                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5600                         if (*i == current) {
5601                                 ++i;
5602                                 if (i != track_views.end()) {
5603                                         current = (*i);
5604                                 } else {
5605                                         current = (*(track_views.begin()));
5606                                         //selection->set (*(track_views.begin()));
5607                                 }
5608                                 break;
5609                         }
5610                 }
5611                 rui = dynamic_cast<RouteUI *>(current);
5612         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5613
5614         selection->set(current);
5615
5616         ensure_track_visible(current);
5617 }
5618
5619 void
5620 Editor::select_prev_route()
5621 {
5622         if (selection->tracks.empty()) {
5623                 selection->set (track_views.front());
5624                 return;
5625         }
5626
5627         TimeAxisView* current = selection->tracks.front();
5628
5629         RouteUI *rui;
5630         do {
5631                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5632                         if (*i == current) {
5633                                 ++i;
5634                                 if (i != track_views.rend()) {
5635                                         current = (*i);
5636                                 } else {
5637                                         current = *(track_views.rbegin());
5638                                 }
5639                                 break;
5640                         }
5641                 }
5642                 rui = dynamic_cast<RouteUI *>(current);
5643         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5644
5645         selection->set (current);
5646
5647         ensure_track_visible(current);
5648 }
5649
5650 void
5651 Editor::ensure_track_visible(TimeAxisView *track)
5652 {
5653         if (track->hidden())
5654                 return;
5655
5656         double const current_view_min_y = vertical_adjustment.get_value();
5657         double const current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - canvas_timebars_vsize;
5658
5659         double const track_min_y = track->y_position ();
5660         double const track_max_y = track->y_position () + track->effective_height ();
5661
5662         if (track_min_y >= current_view_min_y &&
5663             track_max_y <= current_view_max_y) {
5664                 return;
5665         }
5666
5667         double new_value;
5668
5669         if (track_min_y < current_view_min_y) {
5670                 // Track is above the current view
5671                 new_value = track_min_y;
5672         } else {
5673                 // Track is below the current view
5674                 new_value = track->y_position () + track->effective_height() + canvas_timebars_vsize - vertical_adjustment.get_page_size();
5675         }
5676
5677         vertical_adjustment.set_value(new_value);
5678 }
5679
5680 void
5681 Editor::set_loop_from_selection (bool play)
5682 {
5683         if (session == 0 || selection->time.empty()) {
5684                 return;
5685         }
5686
5687         nframes64_t start = selection->time[clicked_selection].start;
5688         nframes64_t end = selection->time[clicked_selection].end;
5689
5690         set_loop_range (start, end,  _("set loop range from selection"));
5691
5692         if (play) {
5693                 session->request_play_loop (true);
5694                 session->request_locate (start, true);
5695         }
5696 }
5697
5698 void
5699 Editor::set_loop_from_edit_range (bool play)
5700 {
5701         if (session == 0) {
5702                 return;
5703         }
5704
5705         nframes64_t start;
5706         nframes64_t end;
5707
5708         if (!get_edit_op_range (start, end)) {
5709                 return;
5710         }
5711
5712         set_loop_range (start, end,  _("set loop range from edit range"));
5713
5714         if (play) {
5715                 session->request_play_loop (true);
5716                 session->request_locate (start, true);
5717         }
5718 }
5719
5720 void
5721 Editor::set_loop_from_region (bool play)
5722 {
5723         nframes64_t start = max_frames;
5724         nframes64_t end = 0;
5725
5726         RegionSelection rs;
5727
5728         get_regions_for_action (rs);
5729
5730         if (rs.empty()) {
5731                 return;
5732         }
5733
5734         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5735                 if ((*i)->region()->position() < start) {
5736                         start = (*i)->region()->position();
5737                 }
5738                 if ((*i)->region()->last_frame() + 1 > end) {
5739                         end = (*i)->region()->last_frame() + 1;
5740                 }
5741         }
5742
5743         set_loop_range (start, end, _("set loop range from region"));
5744
5745         if (play) {
5746                 session->request_play_loop (true);
5747                 session->request_locate (start, true);
5748         }
5749 }
5750
5751 void
5752 Editor::set_punch_from_selection ()
5753 {
5754         if (session == 0 || selection->time.empty()) {
5755                 return;
5756         }
5757
5758         nframes64_t start = selection->time[clicked_selection].start;
5759         nframes64_t end = selection->time[clicked_selection].end;
5760
5761         set_punch_range (start, end,  _("set punch range from selection"));
5762 }
5763
5764 void
5765 Editor::set_punch_from_edit_range ()
5766 {
5767         if (session == 0) {
5768                 return;
5769         }
5770
5771         nframes64_t start;
5772         nframes64_t end;
5773
5774         if (!get_edit_op_range (start, end)) {
5775                 return;
5776         }
5777
5778         set_punch_range (start, end,  _("set punch range from edit range"));
5779 }
5780
5781 void
5782 Editor::set_punch_from_region ()
5783 {
5784         nframes64_t start = max_frames;
5785         nframes64_t end = 0;
5786
5787         RegionSelection rs;
5788
5789         get_regions_for_action (rs);
5790
5791         if (rs.empty()) {
5792                 return;
5793         }
5794
5795         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5796                 if ((*i)->region()->position() < start) {
5797                         start = (*i)->region()->position();
5798                 }
5799                 if ((*i)->region()->last_frame() + 1 > end) {
5800                         end = (*i)->region()->last_frame() + 1;
5801                 }
5802         }
5803
5804         set_punch_range (start, end, _("set punch range from region"));
5805 }
5806
5807 void
5808 Editor::pitch_shift_regions ()
5809 {
5810         RegionSelection rs;
5811
5812         get_regions_for_action (rs);
5813
5814         if (rs.empty()) {
5815                 return;
5816         }
5817
5818         pitch_shift (rs, 1.2);
5819 }
5820
5821 void
5822 Editor::use_region_as_bar ()
5823 {
5824         if (!session) {
5825                 return;
5826         }
5827
5828         RegionSelection rs;
5829
5830         get_regions_for_action (rs);
5831
5832         if (rs.empty()) {
5833                 return;
5834         }
5835
5836         RegionView* rv = rs.front();
5837
5838         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5839 }
5840
5841 void
5842 Editor::use_range_as_bar ()
5843 {
5844         nframes64_t start, end;
5845         if (get_edit_op_range (start, end)) {
5846                 define_one_bar (start, end);
5847         }
5848 }
5849
5850 void
5851 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5852 {
5853         nframes64_t length = end - start;
5854
5855         const Meter& m (session->tempo_map().meter_at (start));
5856
5857         /* length = 1 bar */
5858
5859         /* now we want frames per beat.
5860            we have frames per bar, and beats per bar, so ...
5861         */
5862
5863         double frames_per_beat = length / m.beats_per_bar();
5864
5865         /* beats per minute = */
5866
5867         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5868
5869         /* now decide whether to:
5870
5871             (a) set global tempo
5872             (b) add a new tempo marker
5873
5874         */
5875
5876         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5877
5878         bool do_global = false;
5879
5880         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5881
5882                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5883                    at the start, or create a new marker
5884                 */
5885
5886                 vector<string> options;
5887                 options.push_back (_("Cancel"));
5888                 options.push_back (_("Add new marker"));
5889                 options.push_back (_("Set global tempo"));
5890                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5891                           options);
5892                 c.set_default_response (2);
5893
5894                 switch (c.run()) {
5895                 case 0:
5896                         return;
5897
5898                 case 2:
5899                         do_global = true;
5900                         break;
5901
5902                 default:
5903                         do_global = false;
5904                 }
5905
5906         } else {
5907
5908                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5909                    if the marker is at the region starter, change it, otherwise add
5910                    a new tempo marker
5911                 */
5912         }
5913
5914         begin_reversible_command (_("set tempo from region"));
5915         XMLNode& before (session->tempo_map().get_state());
5916
5917         if (do_global) {
5918                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5919         } else if (t.frame() == start) {
5920                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5921         } else {
5922                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5923         }
5924
5925         XMLNode& after (session->tempo_map().get_state());
5926
5927         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5928         commit_reversible_command ();
5929 }
5930
5931 void
5932 Editor::split_region_at_transients ()
5933 {
5934         AnalysisFeatureList positions;
5935
5936         if (!session) {
5937                 return;
5938         }
5939
5940         RegionSelection rs;
5941
5942         get_regions_for_action (rs);
5943
5944         if (rs.empty()) {
5945                 return;
5946         }
5947
5948         session->begin_reversible_command (_("split regions"));
5949
5950         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5951
5952                 RegionSelection::iterator tmp;
5953
5954                 tmp = i;
5955                 ++tmp;
5956
5957                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5958
5959                 if (ar && (ar->get_transients (positions) == 0)) {
5960                         split_region_at_points ((*i)->region(), positions, true);
5961                         positions.clear ();
5962                 }
5963
5964                 i = tmp;
5965         }
5966
5967         session->commit_reversible_command ();
5968
5969 }
5970
5971 void
5972 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5973 {
5974         bool use_rhythmic_rodent = false;
5975
5976         boost::shared_ptr<Playlist> pl = r->playlist();
5977
5978         if (!pl) {
5979                 return;
5980         }
5981
5982         if (positions.empty()) {
5983                 return;
5984         }
5985
5986
5987         if (positions.size() > 20) {
5988                 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);
5989                 MessageDialog msg (msgstr,
5990                                    false,
5991                                    Gtk::MESSAGE_INFO,
5992                                    Gtk::BUTTONS_OK_CANCEL);
5993
5994                 if (can_ferret) {
5995                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5996                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5997                 } else {
5998                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5999                 }
6000
6001                 msg.set_title (_("Excessive split?"));
6002                 msg.present ();
6003
6004                 int response = msg.run();
6005                 msg.hide ();
6006                 switch (response) {
6007                 case RESPONSE_OK:
6008                         break;
6009                 case RESPONSE_APPLY:
6010                         use_rhythmic_rodent = true;
6011                         break;
6012                 default:
6013                         return;
6014                 }
6015         }
6016
6017         if (use_rhythmic_rodent) {
6018                 show_rhythm_ferret ();
6019                 return;
6020         }
6021
6022         AnalysisFeatureList::const_iterator x;
6023
6024         nframes64_t pos = r->position();
6025
6026         XMLNode& before (pl->get_state());
6027
6028         x = positions.begin();
6029
6030         while (x != positions.end()) {
6031                 if ((*x) > pos) {
6032                         break;
6033                 }
6034                 ++x;
6035         }
6036
6037         if (x == positions.end()) {
6038                 return;
6039         }
6040
6041         pl->freeze ();
6042         pl->remove_region (r);
6043
6044         while (x != positions.end()) {
6045
6046                 /* file start = original start + how far we from the initial position ?
6047                  */
6048
6049                 nframes64_t file_start = r->start() + (pos - r->position());
6050
6051                 /* length = next position - current position
6052                  */
6053
6054                 nframes64_t len = (*x) - pos;
6055
6056                 /* XXX we do we really want to allow even single-sample regions?
6057                    shouldn't we have some kind of lower limit on region size?
6058                 */
6059
6060                 if (len <= 0) {
6061                         break;
6062                 }
6063
6064                 string new_name;
6065
6066                 if (session->region_name (new_name, r->name())) {
6067                         break;
6068                 }
6069
6070                 /* do NOT announce new regions 1 by one, just wait till they are all done */
6071
6072                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
6073                 pl->add_region (nr, pos);
6074
6075                 pos += len;
6076                 ++x;
6077
6078                 if (*x > r->last_frame()) {
6079
6080                         /* add final fragment */
6081
6082                         file_start = r->start() + (pos - r->position());
6083                         len = r->last_frame() - pos;
6084
6085                         nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags);
6086                         pl->add_region (nr, pos);
6087
6088                         break;
6089                 }
6090         }
6091
6092         pl->thaw ();
6093
6094         XMLNode& after (pl->get_state());
6095
6096         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
6097 }
6098
6099 void
6100 Editor::tab_to_transient (bool forward)
6101 {
6102         AnalysisFeatureList positions;
6103
6104         if (!session) {
6105                 return;
6106         }
6107
6108         nframes64_t pos = session->audible_frame ();
6109
6110         if (!selection->tracks.empty()) {
6111
6112                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
6113
6114                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
6115
6116                         if (rtv) {
6117                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
6118                                 if (ds) {
6119                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
6120                                         if (pl) {
6121                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
6122
6123                                                 if (result >= 0) {
6124                                                         positions.push_back (result);
6125                                                 }
6126                                         }
6127                                 }
6128                         }
6129                 }
6130
6131         } else {
6132
6133                 RegionSelection rs;
6134
6135                 get_regions_for_action (rs);
6136
6137                 if (rs.empty()) {
6138                         return;
6139                 }
6140
6141                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6142                         (*r)->region()->get_transients (positions);
6143                 }
6144         }
6145
6146         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
6147
6148         if (forward) {
6149                 AnalysisFeatureList::iterator x;
6150
6151                 for (x = positions.begin(); x != positions.end(); ++x) {
6152                         if ((*x) > pos) {
6153                                 break;
6154                         }
6155                 }
6156
6157                 if (x != positions.end ()) {
6158                         session->request_locate (*x);
6159                 }
6160
6161         } else {
6162                 AnalysisFeatureList::reverse_iterator x;
6163
6164                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
6165                         if ((*x) < pos) {
6166                                 break;
6167                         }
6168                 }
6169
6170                 if (x != positions.rend ()) {
6171                         session->request_locate (*x);
6172                 }
6173         }
6174 }
6175 void
6176 Editor::playhead_forward_to_grid ()
6177 {
6178         if (!session) return;
6179         nframes64_t pos = playhead_cursor->current_frame;
6180         if (pos < max_frames - 1) {
6181                 pos += 2;
6182                 snap_to_internal (pos, 1, false);
6183                 session->request_locate (pos);
6184         }
6185 }
6186
6187
6188 void
6189 Editor::playhead_backward_to_grid ()
6190 {
6191         if (!session) return;
6192         nframes64_t pos = playhead_cursor->current_frame;
6193         if (pos > 2) {
6194                 pos -= 2;
6195                 snap_to_internal (pos, -1, false);
6196                 session->request_locate (pos);
6197         }
6198 }
6199
6200 void
6201 Editor::set_track_height (uint32_t h)
6202 {
6203         TrackSelection& ts (selection->tracks);
6204
6205         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6206                 (*x)->set_height (h);
6207         }
6208 }
6209
6210 void
6211 Editor::toggle_tracks_active ()
6212 {
6213         TrackSelection& ts (selection->tracks);
6214         bool first = true;
6215         bool target = false;
6216
6217         if (ts.empty()) {
6218                 return;
6219         }
6220
6221         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6222                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
6223
6224                 if (rtv) {
6225                         if (first) {
6226                                 target = !rtv->_route->active();
6227                                 first = false;
6228                         }
6229                         rtv->_route->set_active (target);
6230                 }
6231         }
6232 }
6233
6234 void
6235 Editor::remove_tracks ()
6236 {
6237         TrackSelection& ts (selection->tracks);
6238
6239         if (ts.empty()) {
6240                 return;
6241         }
6242
6243         vector<string> choices;
6244         string prompt;
6245         int ntracks = 0;
6246         int nbusses = 0;
6247         const char* trackstr;
6248         const char* busstr;
6249         vector<boost::shared_ptr<Route> > routes;
6250
6251         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6252                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
6253                 if (rtv) {
6254                         if (rtv->is_track()) {
6255                                 ntracks++;
6256                         } else {
6257                                 nbusses++;
6258                         }
6259                 }
6260                 routes.push_back (rtv->_route);
6261         }
6262
6263         if (ntracks + nbusses == 0) {
6264                 return;
6265         }
6266
6267         if (ntracks > 1) {
6268                 trackstr = _("tracks");
6269         } else {
6270                 trackstr = _("track");
6271         }
6272
6273         if (nbusses > 1) {
6274                 busstr = _("busses");
6275         } else {
6276                 busstr = _("bus");
6277         }
6278
6279         if (ntracks) {
6280                 if (nbusses) {
6281                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
6282                                                     "(You may also lose the playlists associated with the %2)\n\n"
6283                                                     "This action cannot be undone!"),
6284                                                   ntracks, trackstr, nbusses, busstr);
6285                 } else {
6286                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
6287                                                     "(You may also lose the playlists associated with the %2)\n\n"
6288                                                     "This action cannot be undone!"),
6289                                                   ntracks, trackstr);
6290                 }
6291         } else if (nbusses) {
6292                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
6293                                           nbusses, busstr);
6294         }
6295
6296         choices.push_back (_("No, do nothing."));
6297         if (ntracks + nbusses > 1) {
6298                 choices.push_back (_("Yes, remove them."));
6299         } else {
6300                 choices.push_back (_("Yes, remove it."));
6301         }
6302
6303         Choice prompter (prompt, choices);
6304
6305         if (prompter.run () != 1) {
6306                 return;
6307         }
6308
6309         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
6310                 session->remove_route (*x);
6311         }
6312 }
6313
6314 void
6315 Editor::do_insert_time ()
6316 {
6317         if (selection->tracks.empty()) {
6318                 return;
6319         }
6320
6321         ArdourDialog d (*this, _("Insert Time"));
6322
6323         nframes64_t const pos = get_preferred_edit_position ();
6324
6325         d.get_vbox()->set_border_width (12);
6326         d.get_vbox()->set_spacing (4);
6327
6328         Table table (2, 2);
6329         table.set_spacings (4);
6330
6331         Label time_label (_("Time to insert:"));
6332         time_label.set_alignment (1, 0.5);
6333         table.attach (time_label, 0, 1, 0, 1, FILL | EXPAND);
6334         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, true, true);
6335         clock.set (0);
6336         clock.set_session (session);
6337         clock.set_bbt_reference (pos);
6338         table.attach (clock, 1, 2, 0, 1);
6339
6340         Label intersected_label (_("Intersected regions should:"));
6341         intersected_label.set_alignment (1, 0.5);
6342         table.attach (intersected_label, 0, 1, 1, 2, FILL | EXPAND);
6343         ComboBoxText intersected_combo;
6344         intersected_combo.append_text (_("stay in position"));
6345         intersected_combo.append_text (_("move"));
6346         intersected_combo.append_text (_("be split"));
6347         intersected_combo.set_active (0);
6348         table.attach (intersected_combo, 1, 2, 1, 2);
6349
6350         d.get_vbox()->pack_start (table);
6351
6352         CheckButton move_glued (_("Move glued regions"));
6353         d.get_vbox()->pack_start (move_glued);
6354         CheckButton move_markers (_("Move markers"));
6355         d.get_vbox()->pack_start (move_markers);
6356         CheckButton move_tempos (_("Move tempo and meter changes"));
6357         d.get_vbox()->pack_start (move_tempos);
6358
6359         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
6360         d.add_button (_("Insert time"), Gtk::RESPONSE_OK);
6361         d.show_all ();
6362
6363         int response = d.run ();
6364
6365         if (response != RESPONSE_OK) {
6366                 return;
6367         }
6368
6369         nframes64_t distance = clock.current_duration (pos);
6370
6371         if (distance == 0) {
6372                 return;
6373         }
6374
6375         InsertTimeOption opt;
6376
6377         switch (intersected_combo.get_active_row_number ()) {
6378         case 0:
6379                 opt = LeaveIntersected;
6380                 break;
6381         case 1:
6382                 opt = MoveIntersected;
6383                 break;
6384         case 2:
6385                 opt = SplitIntersected;
6386                 break;
6387         }
6388
6389         insert_time (pos, distance, opt, move_glued.get_active(), move_markers.get_active(), move_tempos.get_active());
6390 }
6391
6392 void
6393 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
6394                      bool ignore_music_glue, bool markers_too, bool tempo_too)
6395 {
6396         bool commit = false;
6397
6398         if (Config->get_edit_mode() == Lock) {
6399                 return;
6400         }
6401
6402         begin_reversible_command (_("insert time"));
6403
6404         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
6405                 /* regions */
6406                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
6407
6408                 if (pl) {
6409
6410                         XMLNode &before = pl->get_state();
6411
6412                         if (opt == SplitIntersected) {
6413                                 pl->split (pos);
6414                         }
6415
6416                         pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6417
6418                         XMLNode &after = pl->get_state();
6419
6420                         session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
6421                         commit = true;
6422                 }
6423
6424                 /* automation */
6425                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6426                 if (rtav) {
6427                         rtav->route ()->shift (pos, frames);
6428                         commit = true;
6429                 }
6430         }
6431
6432         /* markers */
6433         if (markers_too) {
6434                 bool moved = false;
6435                 XMLNode& before (session->locations()->get_state());
6436                 Locations::LocationList copy (session->locations()->list());
6437
6438                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6439
6440                         Locations::LocationList::const_iterator tmp;
6441
6442                         if ((*i)->start() >= pos) {
6443                                 (*i)->set_start ((*i)->start() + frames);
6444                                 if (!(*i)->is_mark()) {
6445                                         (*i)->set_end ((*i)->end() + frames);
6446                                 }
6447                                 moved = true;
6448                         }
6449                 }
6450
6451                 if (moved) {
6452                         XMLNode& after (session->locations()->get_state());
6453                         session->add_command (new MementoCommand<Locations>(*session->locations(), &before, &after));
6454                 }
6455         }
6456
6457         if (tempo_too) {
6458                 session->tempo_map().insert_time (pos, frames);
6459         }
6460
6461         if (commit) {
6462                 commit_reversible_command ();
6463         }
6464 }
6465
6466 void
6467 Editor::fit_selected_tracks ()
6468 {
6469         fit_tracks (selection->tracks);
6470 }
6471
6472 void
6473 Editor::fit_tracks (TrackSelection & tracks)
6474 {
6475         if (tracks.empty()) {
6476                 return;
6477         }
6478
6479         uint32_t child_heights = 0;
6480
6481         for (TrackSelection::iterator t = tracks.begin(); t != tracks.end(); ++t) {
6482
6483                 if (!(*t)->marked_for_display()) {
6484                         continue;
6485                 }
6486
6487                 child_heights += (*t)->effective_height() - (*t)->current_height();
6488         }
6489
6490         uint32_t h = (uint32_t) floor ((_canvas_height - child_heights - canvas_timebars_vsize) / tracks.size());
6491         double first_y_pos = DBL_MAX;
6492
6493         if (h < TimeAxisView::hSmall) {
6494                 MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
6495                 /* too small to be displayed */
6496                 return;
6497         }
6498
6499         undo_visual_stack.push_back (current_visual_state());
6500
6501         /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
6502
6503         bool prev_was_selected = false;
6504         bool is_selected = tracks.contains (track_views.front());
6505         bool next_is_selected;
6506
6507         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
6508
6509                 TrackViewList::iterator next;
6510
6511                 next = t;
6512                 ++next;
6513
6514                 if (next != track_views.end()) {
6515                         next_is_selected = tracks.contains (*next);
6516                 } else {
6517                         next_is_selected = false;
6518                 }
6519
6520                 if (is_selected) {
6521                         (*t)->set_height (h);
6522                         first_y_pos = std::min ((*t)->y_position (), first_y_pos);
6523                 } else {
6524                         if (prev_was_selected && next_is_selected) {
6525                                 hide_track_in_display (**t);
6526                         }
6527                 }
6528
6529                 prev_was_selected = is_selected;
6530                 is_selected = next_is_selected;
6531         }
6532
6533         /*
6534            set the controls_layout height now, because waiting for its size
6535            request signal handler will cause the vertical adjustment setting to fail
6536         */
6537
6538         controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
6539         vertical_adjustment.set_value (first_y_pos);
6540
6541         redo_visual_stack.push_back (current_visual_state());
6542 }
6543
6544 void
6545 Editor::save_visual_state (uint32_t n)
6546 {
6547         while (visual_states.size() <= n) {
6548                 visual_states.push_back (0);
6549         }
6550
6551         delete visual_states[n];
6552
6553         visual_states[n] = current_visual_state (true);
6554         gdk_beep ();
6555 }
6556
6557 void
6558 Editor::goto_visual_state (uint32_t n)
6559 {
6560         if (visual_states.size() <= n) {
6561                 return;
6562         }
6563
6564         if (visual_states[n] == 0) {
6565                 return;
6566         }
6567
6568         use_visual_state (*visual_states[n]);
6569 }
6570
6571 void
6572 Editor::start_visual_state_op (uint32_t n)
6573 {
6574         if (visual_state_op_connection.empty()) {
6575                 visual_state_op_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
6576         }
6577 }
6578
6579 void
6580 Editor::cancel_visual_state_op (uint32_t n)
6581 {
6582         if (!visual_state_op_connection.empty()) {
6583                 visual_state_op_connection.disconnect();
6584                 goto_visual_state (n);
6585         }  else {
6586                 //we land here if called from the menu OR if end_visual_state_op has been called
6587                 //so check if we are already in visual state n
6588                 // XXX not yet checking it at all, but redoing does not hurt
6589                 goto_visual_state (n);
6590         }
6591 }
6592
6593 bool
6594 Editor::end_visual_state_op (uint32_t n)
6595 {
6596         visual_state_op_connection.disconnect();
6597         save_visual_state (n);
6598
6599         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6600         char buf[32];
6601         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6602         pup->set_text (buf);
6603         pup->touch();
6604
6605         return false; // do not call again
6606 }
6607