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                 // FIXME
3091                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
3092                 assert(ar);
3093
3094                 boost::shared_ptr<Playlist> pl = region->playlist();
3095
3096                 if (end <= region->last_frame()) {
3097                         return;
3098                 }
3099
3100                 double times = (double) (end - region->last_frame()) / (double) region->length();
3101
3102                 if (times == 0) {
3103                         return;
3104                 }
3105
3106                 XMLNode &before = pl->get_state();
3107                 pl->add_region (RegionFactory::create (ar), ar->last_frame(), times);
3108                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
3109         }
3110
3111         commit_reversible_command ();
3112 }
3113
3114 void
3115 Editor::region_fill_selection ()
3116 {
3117         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3118                 return;
3119         }
3120
3121         if (selection->time.empty()) {
3122                 return;
3123         }
3124
3125         boost::shared_ptr<Region> region = _regions->get_single_selection ();
3126         if (region == 0) {
3127                 return;
3128         }
3129
3130         nframes64_t start = selection->time[clicked_selection].start;
3131         nframes64_t end = selection->time[clicked_selection].end;
3132
3133         boost::shared_ptr<Playlist> playlist;
3134
3135         if (selection->tracks.empty()) {
3136                 return;
3137         }
3138
3139         nframes64_t selection_length = end - start;
3140         float times = (float)selection_length / region->length();
3141
3142         begin_reversible_command (_("fill selection"));
3143
3144         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3145
3146                 if ((playlist = (*i)->playlist()) == 0) {
3147                         continue;
3148                 }
3149
3150                 XMLNode &before = playlist->get_state();
3151                 playlist->add_region (RegionFactory::create (region), start, times);
3152                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3153         }
3154
3155         commit_reversible_command ();
3156 }
3157
3158 void
3159 Editor::set_region_sync_from_edit_point ()
3160 {
3161         nframes64_t where = get_preferred_edit_position ();
3162         RegionSelection rs;
3163         get_regions_for_action (rs);
3164         set_sync_point (where, rs);
3165 }
3166
3167 void
3168 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
3169 {
3170         bool in_command = false;
3171
3172         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3173
3174                 if (!(*r)->region()->covers (where)) {
3175                         continue;
3176                 }
3177
3178                 boost::shared_ptr<Region> region ((*r)->region());
3179
3180                 if (!in_command) {
3181                         begin_reversible_command (_("set sync point"));
3182                         in_command = true;
3183                 }
3184
3185                 XMLNode &before = region->playlist()->get_state();
3186                 region->set_sync_position (where);
3187                 XMLNode &after = region->playlist()->get_state();
3188                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3189         }
3190
3191         if (in_command) {
3192                 commit_reversible_command ();
3193         }
3194 }
3195
3196 /** Remove the sync positions of the selection */
3197 void
3198 Editor::remove_region_sync ()
3199 {
3200         RegionSelection rs;
3201
3202         get_regions_for_action (rs);
3203
3204         if (rs.empty()) {
3205                 return;
3206         }
3207
3208         begin_reversible_command (_("remove sync"));
3209         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3210
3211                 XMLNode &before = (*i)->region()->playlist()->get_state();
3212                 (*i)->region()->clear_sync_position ();
3213                 XMLNode &after = (*i)->region()->playlist()->get_state();
3214                 session->add_command(new MementoCommand<Playlist>(*((*i)->region()->playlist()), &before, &after));
3215         }
3216         commit_reversible_command ();
3217 }
3218
3219 void
3220 Editor::naturalize ()
3221 {
3222         RegionSelection rs;
3223
3224         get_regions_for_action (rs);
3225
3226         if (rs.empty()) {
3227                 return;
3228         }
3229
3230         begin_reversible_command (_("naturalize"));
3231         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3232                 XMLNode &before = (*i)->region()->get_state();
3233                 (*i)->region()->move_to_natural_position (this);
3234                 XMLNode &after = (*i)->region()->get_state();
3235                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
3236         }
3237         commit_reversible_command ();
3238 }
3239
3240 void
3241 Editor::align (RegionPoint what)
3242 {
3243         RegionSelection rs;
3244
3245         get_regions_for_action (rs);
3246         nframes64_t where = get_preferred_edit_position();
3247
3248         if (!rs.empty()) {
3249                 align_selection (what, where, rs);
3250         } else {
3251
3252                 RegionSelection rs;
3253                 get_regions_at (rs, where, selection->tracks);
3254                 align_selection (what, where, rs);
3255         }
3256 }
3257
3258 void
3259 Editor::align_relative (RegionPoint what)
3260 {
3261         nframes64_t where = get_preferred_edit_position();
3262         RegionSelection rs;
3263
3264         get_regions_for_action (rs);
3265
3266         if (!rs.empty()) {
3267                 align_selection_relative (what, where, rs);
3268         }
3269 }
3270
3271 struct RegionSortByTime {
3272     bool operator() (const RegionView* a, const RegionView* b) {
3273             return a->region()->position() < b->region()->position();
3274     }
3275 };
3276
3277 void
3278 Editor::align_selection_relative (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3279 {
3280         if (rs.empty()) {
3281                 return;
3282         }
3283
3284         nframes64_t distance = 0;
3285         nframes64_t pos = 0;
3286         int dir = 1;
3287
3288         list<RegionView*> sorted;
3289         rs.by_position (sorted);
3290
3291         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3292
3293         switch (point) {
3294         case Start:
3295                 pos = position;
3296                 if (position > r->position()) {
3297                         distance = position - r->position();
3298                 } else {
3299                         distance = r->position() - position;
3300                         dir = -1;
3301                 }
3302                 break;
3303
3304         case End:
3305                 if (position > r->last_frame()) {
3306                         distance = position - r->last_frame();
3307                         pos = r->position() + distance;
3308                 } else {
3309                         distance = r->last_frame() - position;
3310                         pos = r->position() - distance;
3311                         dir = -1;
3312                 }
3313                 break;
3314
3315         case SyncPoint:
3316                 pos = r->adjust_to_sync (position);
3317                 if (pos > r->position()) {
3318                         distance = pos - r->position();
3319                 } else {
3320                         distance = r->position() - pos;
3321                         dir = -1;
3322                 }
3323                 break;
3324         }
3325
3326         if (pos == r->position()) {
3327                 return;
3328         }
3329
3330         begin_reversible_command (_("align selection (relative)"));
3331
3332         /* move first one specially */
3333
3334         XMLNode &before = r->playlist()->get_state();
3335         r->set_position (pos, this);
3336         XMLNode &after = r->playlist()->get_state();
3337         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3338
3339         /* move rest by the same amount */
3340
3341         sorted.pop_front();
3342
3343         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3344
3345                 boost::shared_ptr<Region> region ((*i)->region());
3346
3347                 XMLNode &before = region->playlist()->get_state();
3348
3349                 if (dir > 0) {
3350                         region->set_position (region->position() + distance, this);
3351                 } else {
3352                         region->set_position (region->position() - distance, this);
3353                 }
3354
3355                 XMLNode &after = region->playlist()->get_state();
3356                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3357
3358         }
3359
3360         commit_reversible_command ();
3361 }
3362
3363 void
3364 Editor::align_selection (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3365 {
3366         if (rs.empty()) {
3367                 return;
3368         }
3369
3370         begin_reversible_command (_("align selection"));
3371
3372         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3373                 align_region_internal ((*i)->region(), point, position);
3374         }
3375
3376         commit_reversible_command ();
3377 }
3378
3379 void
3380 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3381 {
3382         begin_reversible_command (_("align region"));
3383         align_region_internal (region, point, position);
3384         commit_reversible_command ();
3385 }
3386
3387 void
3388 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3389 {
3390         XMLNode &before = region->playlist()->get_state();
3391
3392         switch (point) {
3393         case SyncPoint:
3394                 region->set_position (region->adjust_to_sync (position), this);
3395                 break;
3396
3397         case End:
3398                 if (position > region->length()) {
3399                         region->set_position (position - region->length(), this);
3400                 }
3401                 break;
3402
3403         case Start:
3404                 region->set_position (position, this);
3405                 break;
3406         }
3407
3408         XMLNode &after = region->playlist()->get_state();
3409         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3410 }
3411
3412 void
3413 Editor::trim_region_front ()
3414 {
3415         trim_region (true);
3416 }
3417
3418 void
3419 Editor::trim_region_back ()
3420 {
3421         trim_region (false);
3422 }
3423
3424 void
3425 Editor::trim_region (bool front)
3426 {
3427         nframes64_t where = get_preferred_edit_position();
3428         RegionSelection rs;
3429
3430         get_regions_for_action (rs);
3431
3432         if (rs.empty()) {
3433                 return;
3434         }
3435
3436         begin_reversible_command (front ? _("trim front") : _("trim back"));
3437
3438         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
3439                 if (!(*i)->region()->locked()) {
3440                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
3441                         XMLNode &before = pl->get_state();
3442                         if (front) {
3443                                 (*i)->region()->trim_front (where, this);
3444                         } else {
3445                                 (*i)->region()->trim_end (where, this);
3446                         }
3447                         XMLNode &after = pl->get_state();
3448                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
3449                 }
3450         }
3451
3452         commit_reversible_command ();
3453 }
3454
3455 /** Trim the end of the selected regions to the position of the edit cursor */
3456 void
3457 Editor::trim_region_to_loop ()
3458 {
3459         Location* loc = session->locations()->auto_loop_location();
3460         if (!loc) {
3461                 return;
3462         }
3463         trim_region_to_location (*loc, _("trim to loop"));
3464 }
3465
3466 void
3467 Editor::trim_region_to_punch ()
3468 {
3469         Location* loc = session->locations()->auto_punch_location();
3470         if (!loc) {
3471                 return;
3472         }
3473         trim_region_to_location (*loc, _("trim to punch"));
3474 }
3475 void
3476 Editor::trim_region_to_location (const Location& loc, const char* str)
3477 {
3478         RegionSelection rs;
3479
3480         get_regions_for_action (rs);
3481
3482         begin_reversible_command (str);
3483
3484         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3485                 RegionView* rv = (*x);
3486
3487                 /* require region to span proposed trim */
3488                 switch (rv->region()->coverage (loc.start(), loc.end())) {
3489                 case OverlapInternal:
3490                         break;
3491                 default:
3492                         continue;
3493                 }
3494
3495                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3496                 if (!tav) {
3497                         return;
3498                 }
3499
3500                 float speed = 1.0;
3501                 nframes64_t start;
3502                 nframes64_t end;
3503
3504                 if (tav->get_diskstream() != 0) {
3505                         speed = tav->get_diskstream()->speed();
3506                 }
3507
3508                 start = session_frame_to_track_frame (loc.start(), speed);
3509                 end = session_frame_to_track_frame (loc.end(), speed);
3510
3511                 XMLNode &before = rv->region()->playlist()->get_state();
3512                 rv->region()->trim_to (start, (end - start), this);
3513                 XMLNode &after = rv->region()->playlist()->get_state();
3514                 session->add_command(new MementoCommand<Playlist>(
3515                                 *(rv->region()->playlist()), &before, &after));
3516         }
3517
3518         commit_reversible_command ();
3519 }
3520
3521 void
3522 Editor::trim_region_to_edit_point ()
3523 {
3524         RegionSelection rs;
3525
3526         get_regions_for_action (rs);
3527
3528         nframes64_t where = get_preferred_edit_position();
3529
3530         begin_reversible_command (_("trim region start to edit point"));
3531
3532         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3533                 RegionView* rv = (*x);
3534
3535                 /* require region to cover trim */
3536                 if (!rv->region()->covers (where)) {
3537                         continue;
3538                 }
3539
3540                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3541                 if (!tav) {
3542                         return;
3543                 }
3544
3545                 float speed = 1.0;
3546
3547                 if (tav->get_diskstream() != 0) {
3548                         speed = tav->get_diskstream()->speed();
3549                 }
3550
3551                 XMLNode &before = rv->region()->playlist()->get_state();
3552                 rv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3553                 XMLNode &after = rv->region()->playlist()->get_state();
3554                 session->add_command(new MementoCommand<Playlist>(
3555                                 *(rv->region()->playlist()), &before, &after));
3556         }
3557
3558         commit_reversible_command ();
3559 }
3560
3561 void
3562 Editor::trim_region_from_edit_point ()
3563 {
3564         RegionSelection rs;
3565
3566         get_regions_for_action (rs);
3567
3568         nframes64_t where = get_preferred_edit_position();
3569
3570         begin_reversible_command (_("trim region end to edit point"));
3571
3572         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3573                 RegionView* rv = (*x);
3574
3575                 /* require region to cover trim */
3576                 if (!rv->region()->covers (where)) {
3577                         continue;
3578                 }
3579
3580                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3581                 if (!tav) {
3582                         return;
3583                 }
3584
3585                 float speed = 1.0;
3586
3587                 if (tav->get_diskstream() != 0) {
3588                         speed = tav->get_diskstream()->speed();
3589                 }
3590
3591                 XMLNode &before = rv->region()->playlist()->get_state();
3592                 rv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3593                 XMLNode &after = rv->region()->playlist()->get_state();
3594                 session->add_command(new MementoCommand<Playlist>(
3595                                 *(rv->region()->playlist()), &before, &after));
3596         }
3597
3598         commit_reversible_command ();
3599 }
3600
3601 void
3602 Editor::trim_region_to_previous_region_end ()
3603 {
3604         return trim_to_region(false);
3605 }
3606
3607 void
3608 Editor::trim_region_to_next_region_start ()
3609 {
3610         return trim_to_region(true);
3611 }
3612
3613 void
3614 Editor::trim_to_region(bool forward)
3615 {
3616         RegionSelection rs;
3617
3618         get_regions_for_action (rs);
3619
3620         begin_reversible_command (_("trim to region"));
3621
3622         boost::shared_ptr<Region> next_region;
3623
3624         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3625
3626                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3627
3628                 if (!arv) {
3629                         continue;
3630                 }
3631
3632                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3633
3634                 if (!atav) {
3635                         return;
3636                 }
3637
3638                 float speed = 1.0;
3639
3640                 if (atav->get_diskstream() != 0) {
3641                         speed = atav->get_diskstream()->speed();
3642                 }
3643
3644
3645                 boost::shared_ptr<Region> region = arv->region();
3646                 boost::shared_ptr<Playlist> playlist (region->playlist());
3647
3648                 XMLNode &before = playlist->get_state();
3649
3650                 if(forward){
3651
3652                     next_region = playlist->find_next_region (region->first_frame(), Start, 1);
3653
3654                     if(!next_region){
3655                         continue;
3656                     }
3657
3658                     region->trim_end((nframes64_t) (next_region->first_frame() * speed), this);
3659                     arv->region_changed (Change (LengthChanged));
3660                 }
3661                 else {
3662
3663                     next_region = playlist->find_next_region (region->first_frame(), Start, 0);
3664
3665                     if(!next_region){
3666                         continue;
3667                     }
3668
3669                     region->trim_front((nframes64_t) ((next_region->last_frame() + 1) * speed), this);
3670                     arv->region_changed (Change (LengthChanged|PositionChanged|StartChanged));
3671                 }
3672
3673                 XMLNode &after = playlist->get_state();
3674                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
3675         }
3676
3677         commit_reversible_command ();
3678 }
3679
3680 void
3681 Editor::unfreeze_route ()
3682 {
3683         if (clicked_routeview == 0 || !clicked_routeview->is_track()) {
3684                 return;
3685         }
3686
3687         clicked_routeview->track()->unfreeze ();
3688 }
3689
3690 void*
3691 Editor::_freeze_thread (void* arg)
3692 {
3693         PBD::notify_gui_about_thread_creation (pthread_self(), X_("Freeze"));
3694         return static_cast<Editor*>(arg)->freeze_thread ();
3695 }
3696
3697 void*
3698 Editor::freeze_thread ()
3699 {
3700         clicked_routeview->audio_track()->freeze (*current_interthread_info);
3701         current_interthread_info->done = true;
3702         return 0;
3703 }
3704
3705 gint
3706 Editor::freeze_progress_timeout (void */*arg*/)
3707 {
3708         interthread_progress_bar.set_fraction (current_interthread_info->progress);
3709         return !(current_interthread_info->done || current_interthread_info->cancel);
3710 }
3711
3712 void
3713 Editor::freeze_route ()
3714 {
3715         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3716                 return;
3717         }
3718
3719         InterThreadInfo itt;
3720
3721         if (interthread_progress_window == 0) {
3722                 build_interthread_progress_window ();
3723         }
3724
3725         interthread_progress_window->set_title (_("Freeze"));
3726         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3727         interthread_progress_window->show_all ();
3728         interthread_progress_bar.set_fraction (0.0f);
3729         interthread_progress_label.set_text ("");
3730         interthread_cancel_label.set_text (_("Cancel Freeze"));
3731         current_interthread_info = &itt;
3732
3733         interthread_progress_connection =
3734           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3735
3736         itt.done = false;
3737         itt.cancel = false;
3738         itt.progress = 0.0f;
3739
3740         pthread_attr_t attr;
3741         pthread_attr_init(&attr);
3742         pthread_attr_setstacksize(&attr, 500000);
3743
3744         pthread_create_and_store (X_("freezer"), &itt.thread, &attr, _freeze_thread, this);
3745
3746         pthread_attr_destroy(&attr);
3747
3748         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3749
3750         while (!itt.done && !itt.cancel) {
3751                 gtk_main_iteration ();
3752         }
3753
3754         interthread_progress_connection.disconnect ();
3755         interthread_progress_window->hide_all ();
3756         current_interthread_info = 0;
3757         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3758 }
3759
3760 void
3761 Editor::bounce_range_selection (bool replace, bool enable_processing)
3762 {
3763         if (selection->time.empty()) {
3764                 return;
3765         }
3766
3767         TrackSelection views = selection->tracks;
3768
3769         nframes64_t start = selection->time[clicked_selection].start;
3770         nframes64_t end = selection->time[clicked_selection].end;
3771         nframes64_t cnt = end - start + 1;
3772
3773         begin_reversible_command (_("bounce range"));
3774
3775         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3776
3777                 RouteTimeAxisView* rtv;
3778
3779                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
3780                         continue;
3781                 }
3782
3783                 boost::shared_ptr<Playlist> playlist;
3784
3785                 if ((playlist = rtv->playlist()) == 0) {
3786                         return;
3787                 }
3788
3789                 InterThreadInfo itt;
3790
3791                 itt.done = false;
3792                 itt.cancel = false;
3793                 itt.progress = false;
3794
3795                 XMLNode &before = playlist->get_state();
3796                 boost::shared_ptr<Region> r = rtv->track()->bounce_range (start, start+cnt, itt, enable_processing);
3797
3798                 if (replace) {
3799                         list<AudioRange> ranges;
3800                         ranges.push_back (AudioRange (start, start+cnt, 0));
3801                         playlist->cut (ranges); // discard result
3802                         playlist->add_region (r, start);
3803                 }
3804
3805                 XMLNode &after = playlist->get_state();
3806                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3807         }
3808
3809         commit_reversible_command ();
3810 }
3811
3812 /** Cut selected regions, automation points or a time range */
3813 void
3814 Editor::cut ()
3815 {
3816         cut_copy (Cut);
3817 }
3818
3819 /** Copy selected regions, automation points or a time range */
3820 void
3821 Editor::copy ()
3822 {
3823         cut_copy (Copy);
3824 }
3825
3826
3827 /** @return true if a Cut, Copy or Clear is possible */
3828 bool
3829 Editor::can_cut_copy () const
3830 {
3831         switch (current_mouse_mode()) {
3832
3833         case MouseObject:
3834                 if (!selection->regions.empty() || !selection->points.empty()) {
3835                         return true;
3836                 }
3837                 break;
3838
3839         case MouseRange:
3840                 if (!selection->time.empty()) {
3841                         return true;
3842                 }
3843                 break;
3844
3845         default:
3846                 break;
3847         }
3848
3849         return false;
3850 }
3851
3852
3853 /** Cut, copy or clear selected regions, automation points or a time range.
3854  * @param op Operation (Cut, Copy or Clear)
3855  */
3856 void
3857 Editor::cut_copy (CutCopyOp op)
3858 {
3859         /* only cancel selection if cut/copy is successful.*/
3860
3861         string opname;
3862
3863         switch (op) {
3864         case Cut:
3865                 opname = _("cut");
3866                 break;
3867         case Copy:
3868                 opname = _("copy");
3869                 break;
3870         case Clear:
3871                 opname = _("clear");
3872                 break;
3873         }
3874
3875         /* if we're deleting something, and the mouse is still pressed,
3876            the thing we started a drag for will be gone when we release
3877            the mouse button(s). avoid this. see part 2 at the end of
3878            this function.
3879         */
3880
3881         if (op == Cut || op == Clear) {
3882                 if (_drag) {
3883                         _drag->item()->ungrab (0);
3884                         delete _drag;
3885                         _drag = 0;
3886                 }
3887         }
3888
3889         cut_buffer->clear ();
3890
3891         if (entered_marker) {
3892
3893                 /* cut/delete op while pointing at a marker */
3894
3895                 bool ignored;
3896                 Location* loc = find_location_from_marker (entered_marker, ignored);
3897
3898                 if (session && loc) {
3899                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3900                 }
3901
3902                 break_drag ();
3903                 delete _drag;
3904                 _drag = 0;
3905
3906                 return;
3907         }
3908
3909         if (internal_editing()) {
3910
3911                 switch (current_mouse_mode()) {
3912                 case MouseObject:
3913                 case MouseRange:
3914                         cut_copy_midi (op);
3915                         break;
3916                 default:
3917                         break;
3918                 }
3919
3920         } else {
3921
3922                 RegionSelection rs;
3923
3924                 /* we only want to cut regions if some are selected */
3925
3926                 if (!selection->regions.empty()) {
3927                         get_regions_for_action (rs, false, false);
3928                 }
3929
3930                 switch (current_mouse_mode()) {
3931                 case MouseObject:
3932                         if (!rs.empty() || !selection->points.empty()) {
3933
3934                                 begin_reversible_command (opname + _(" objects"));
3935
3936                                 if (!rs.empty()) {
3937                                         cut_copy_regions (op, rs);
3938
3939                                         if (op == Cut) {
3940                                                 selection->clear_regions ();
3941                                         }
3942                                 }
3943
3944                                 if (!selection->points.empty()) {
3945                                         cut_copy_points (op);
3946
3947                                         if (op == Cut) {
3948                                                 selection->clear_points ();
3949                                         }
3950                                 }
3951
3952                                 commit_reversible_command ();
3953                                 break; // terminate case statement here
3954                         }
3955                         if (!selection->time.empty()) {
3956                                 /* don't cause suprises */
3957                                 break;
3958                         }
3959                         // fall thru if there was nothing selected
3960
3961                 case MouseRange:
3962                         if (selection->time.empty()) {
3963                                 nframes64_t start, end;
3964                                 if (!get_edit_op_range (start, end)) {
3965                                         return;
3966                                 }
3967                                 selection->set ((TimeAxisView*) 0, start, end);
3968                         }
3969
3970                         begin_reversible_command (opname + _(" range"));
3971                         cut_copy_ranges (op);
3972                         commit_reversible_command ();
3973
3974                         if (op == Cut) {
3975                                 selection->clear_time ();
3976                         }
3977
3978                         break;
3979
3980                 default:
3981                         break;
3982                 }
3983         }
3984
3985         if (op == Cut || op == Clear) {
3986                 break_drag ();
3987                 delete _drag;
3988                 _drag = 0;
3989         }
3990 }
3991
3992 /** Cut, copy or clear selected automation points.
3993  * @param op Operation (Cut, Copy or Clear)
3994  */
3995 void
3996 Editor::cut_copy_points (CutCopyOp op)
3997 {
3998         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3999
4000                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4001
4002                 if (atv) {
4003                         atv->cut_copy_clear_objects (selection->points, op);
4004                 }
4005         }
4006 }
4007
4008 /** Cut, copy or clear selected automation points.
4009  * @param op Operation (Cut, Copy or Clear)
4010  */
4011 void
4012 Editor::cut_copy_midi (CutCopyOp op)
4013 {
4014         for (MidiRegionSelection::iterator i = selection->midi_regions.begin(); i != selection->midi_regions.end(); ++i) {
4015                 MidiRegionView* mrv = *i;
4016                 mrv->cut_copy_clear (op);
4017         }
4018 }
4019
4020 struct PlaylistState {
4021     boost::shared_ptr<Playlist> playlist;
4022     XMLNode*  before;
4023 };
4024
4025 struct lt_playlist {
4026     bool operator () (const PlaylistState& a, const PlaylistState& b) {
4027             return a.playlist < b.playlist;
4028     }
4029 };
4030
4031 struct PlaylistMapping {
4032     TimeAxisView* tv;
4033     boost::shared_ptr<Playlist> pl;
4034
4035     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
4036 };
4037
4038 /** Remove `clicked_regionview' */
4039 void
4040 Editor::remove_clicked_region ()
4041 {
4042         if (clicked_routeview == 0 || clicked_regionview == 0) {
4043                 return;
4044         }
4045
4046         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
4047
4048         begin_reversible_command (_("remove region"));
4049         XMLNode &before = playlist->get_state();
4050         playlist->remove_region (clicked_regionview->region());
4051         XMLNode &after = playlist->get_state();
4052         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4053         commit_reversible_command ();
4054 }
4055
4056
4057 /** Remove the selected regions */
4058 void
4059 Editor::remove_selected_regions ()
4060 {
4061         RegionSelection rs;
4062         get_regions_for_action (rs);
4063
4064         if (!session) {
4065                 return;
4066         }
4067
4068         if (rs.empty()) {
4069                 return;
4070         }
4071
4072         begin_reversible_command (_("remove region"));
4073
4074         list<boost::shared_ptr<Region> > regions_to_remove;
4075
4076         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4077                 // we can't just remove the region(s) in this loop because
4078                 // this removes them from the RegionSelection, and they thus
4079                 // disappear from underneath the iterator, and the ++i above
4080                 // SEGVs in a puzzling fashion.
4081
4082                 // so, first iterate over the regions to be removed from rs and
4083                 // add them to the regions_to_remove list, and then
4084                 // iterate over the list to actually remove them.
4085
4086                 regions_to_remove.push_back ((*i)->region());
4087         }
4088
4089         vector<PlaylistState> playlists;
4090
4091         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
4092
4093                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
4094
4095                 if (!playlist) {
4096                         // is this check necessary?
4097                         continue;
4098                 }
4099
4100                 vector<PlaylistState>::iterator i;
4101
4102                 //only take state if this is a new playlist.
4103                 for (i = playlists.begin(); i != playlists.end(); ++i) {
4104                         if ((*i).playlist == playlist) {
4105                                 break;
4106                         }
4107                 }
4108
4109                 if (i == playlists.end()) {
4110
4111                         PlaylistState before;
4112                         before.playlist = playlist;
4113                         before.before = &playlist->get_state();
4114
4115                         playlist->freeze ();
4116                         playlists.push_back(before);
4117                 }
4118
4119                 playlist->remove_region (*rl);
4120         }
4121
4122         vector<PlaylistState>::iterator pl;
4123
4124         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
4125                 (*pl).playlist->thaw ();
4126                 session->add_command(new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4127         }
4128
4129         commit_reversible_command ();
4130 }
4131
4132 /** Cut, copy or clear selected regions.
4133  * @param op Operation (Cut, Copy or Clear)
4134  */
4135 void
4136 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
4137 {
4138         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
4139            a map when we want ordered access to both elements. i think.
4140         */
4141
4142         vector<PlaylistMapping> pmap;
4143
4144         nframes64_t first_position = max_frames;
4145
4146         set<PlaylistState, lt_playlist> freezelist;
4147         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
4148
4149         /* get ordering correct before we cut/copy */
4150
4151         rs.sort_by_position_and_track ();
4152
4153         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4154
4155                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
4156
4157                 if (op == Cut || op == Clear) {
4158                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4159
4160                         if (pl) {
4161                                 set<PlaylistState, lt_playlist>::iterator fl;
4162
4163                                 //only take state if this is a new playlist.
4164                                 for (fl = freezelist.begin(); fl != freezelist.end(); ++fl) {
4165                                         if ((*fl).playlist == pl) {
4166                                                 break;
4167                                         }
4168                                 }
4169
4170                                 if (fl == freezelist.end()) {
4171                                         PlaylistState before;
4172                                         before.playlist = pl;
4173                                         before.before = &pl->get_state();
4174                                         pl->freeze ();
4175                                         insert_result = freezelist.insert (before);
4176                                 }
4177                         }
4178                 }
4179
4180                 TimeAxisView* tv = &(*x)->get_trackview();
4181                 vector<PlaylistMapping>::iterator z;
4182
4183                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4184                         if ((*z).tv == tv) {
4185                                 break;
4186                         }
4187                 }
4188
4189                 if (z == pmap.end()) {
4190                         pmap.push_back (PlaylistMapping (tv));
4191                 }
4192         }
4193
4194         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
4195
4196                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4197
4198                 if (!pl) {
4199                         /* impossible, but this handles it for the future */
4200                         continue;
4201                 }
4202
4203                 TimeAxisView& tv = (*x)->get_trackview();
4204                 boost::shared_ptr<Playlist> npl;
4205                 RegionSelection::iterator tmp;
4206
4207                 tmp = x;
4208                 ++tmp;
4209
4210                 vector<PlaylistMapping>::iterator z;
4211
4212                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4213                         if ((*z).tv == &tv) {
4214                                 break;
4215                         }
4216                 }
4217
4218                 assert (z != pmap.end());
4219
4220                 if (!(*z).pl) {
4221                         npl = PlaylistFactory::create (pl->data_type(), *session, "cutlist", true);
4222                         npl->freeze();
4223                         (*z).pl = npl;
4224                 } else {
4225                         npl = (*z).pl;
4226                 }
4227
4228                 boost::shared_ptr<Region> r = (*x)->region();
4229                 boost::shared_ptr<Region> _xx;
4230
4231                 assert (r != 0);
4232
4233                 switch (op) {
4234                 case Cut:
4235                         _xx = RegionFactory::create (r);
4236                         npl->add_region (_xx, r->position() - first_position);
4237                         pl->remove_region (r);
4238                         break;
4239
4240                 case Copy:
4241                         /* copy region before adding, so we're not putting same object into two different playlists */
4242                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
4243                         break;
4244
4245                 case Clear:
4246                         pl->remove_region (r);
4247                         break;
4248                 }
4249
4250                 x = tmp;
4251         }
4252
4253         list<boost::shared_ptr<Playlist> > foo;
4254
4255         /* the pmap is in the same order as the tracks in which selected regions occured */
4256
4257         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4258                 (*i).pl->thaw();
4259                 foo.push_back ((*i).pl);
4260         }
4261
4262
4263         if (!foo.empty()) {
4264                 cut_buffer->set (foo);
4265         }
4266
4267         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4268                 (*pl).playlist->thaw ();
4269                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4270         }
4271 }
4272
4273 void
4274 Editor::cut_copy_ranges (CutCopyOp op)
4275 {
4276         TrackSelection* ts;
4277         TrackSelection entered;
4278
4279         if (selection->tracks.empty()) {
4280                 if (!entered_track) {
4281                         return;
4282                 }
4283                 entered.push_back (entered_track);
4284                 ts = &entered;
4285         } else {
4286                 ts = &selection->tracks;
4287         }
4288
4289         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
4290                 (*i)->cut_copy_clear (*selection, op);
4291         }
4292 }
4293
4294 void
4295 Editor::paste (float times)
4296 {
4297         paste_internal (get_preferred_edit_position(), times);
4298 }
4299
4300 void
4301 Editor::mouse_paste ()
4302 {
4303         nframes64_t where;
4304         bool ignored;
4305
4306         if (!mouse_frame (where, ignored)) {
4307                 return;
4308         }
4309
4310         snap_to (where);
4311         paste_internal (where, 1);
4312 }
4313
4314 void
4315 Editor::paste_internal (nframes64_t position, float times)
4316 {
4317         bool commit = false;
4318
4319         if (internal_editing()) {
4320                 if (cut_buffer->midi_notes.empty()) {
4321                         return;
4322                 }
4323         } else {
4324                 if (cut_buffer->empty()) {
4325                         return;
4326                 }
4327         }
4328
4329         if (position == max_frames) {
4330                 position = get_preferred_edit_position();
4331         }
4332
4333         begin_reversible_command (_("paste"));
4334
4335         TrackSelection ts;
4336         TrackSelection::iterator i;
4337         size_t nth;
4338
4339         /* get everything in the correct order */
4340
4341         if (!selection->tracks.empty()) {
4342                 sort_track_selection ();
4343                 ts = selection->tracks;
4344         } else if (entered_track) {
4345                 ts.push_back (entered_track);
4346         }
4347
4348         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4349
4350                 /* undo/redo is handled by individual tracks/regions */
4351
4352                 if (internal_editing()) {
4353
4354                         RegionSelection rs;
4355                         RegionSelection::iterator r;
4356                         MidiNoteSelection::iterator cb;
4357
4358                         get_regions_at (rs, position, ts);
4359
4360                         for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
4361                              cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
4362                                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
4363                                 if (mrv) {
4364                                         mrv->paste (position, times, **cb);
4365                                         ++cb;
4366                                 }
4367                         }
4368
4369                 } else {
4370
4371                         if ((*i)->paste (position, times, *cut_buffer, nth)) {
4372                                 commit = true;
4373                         }
4374                 }
4375         }
4376
4377         if (commit) {
4378                 commit_reversible_command ();
4379         }
4380 }
4381
4382 void
4383 Editor::paste_named_selection (float times)
4384 {
4385         TrackSelection::iterator t;
4386
4387         Glib::RefPtr<TreeSelection> selected = named_selection_display.get_selection();
4388
4389         if (selected->count_selected_rows() != 1 || selection->tracks.empty()) {
4390                 return;
4391         }
4392
4393         TreeModel::iterator i = selected->get_selected();
4394         NamedSelection* ns = (*i)[named_selection_columns.selection];
4395
4396         list<boost::shared_ptr<Playlist> >::iterator chunk;
4397         list<boost::shared_ptr<Playlist> >::iterator tmp;
4398
4399         chunk = ns->playlists.begin();
4400
4401         begin_reversible_command (_("paste chunk"));
4402
4403         sort_track_selection ();
4404
4405         for (t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
4406
4407                 RouteTimeAxisView* rtv;
4408                 boost::shared_ptr<Playlist> pl;
4409                 boost::shared_ptr<AudioPlaylist> apl;
4410
4411                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*t)) == 0) {
4412                         continue;
4413                 }
4414
4415                 if ((pl = rtv->playlist()) == 0) {
4416                         continue;
4417                 }
4418
4419                 if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
4420                         continue;
4421                 }
4422
4423                 tmp = chunk;
4424                 ++tmp;
4425
4426                 XMLNode &before = apl->get_state();
4427                 apl->paste (*chunk, get_preferred_edit_position(), times);
4428                 session->add_command(new MementoCommand<AudioPlaylist>(*apl, &before, &apl->get_state()));
4429
4430                 if (tmp != ns->playlists.end()) {
4431                         chunk = tmp;
4432                 }
4433         }
4434
4435         commit_reversible_command();
4436 }
4437
4438 void
4439 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4440 {
4441         boost::shared_ptr<Playlist> playlist;
4442         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4443         RegionSelection foo;
4444
4445         begin_reversible_command (_("duplicate region"));
4446
4447         selection->clear_regions ();
4448
4449         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4450
4451                 boost::shared_ptr<Region> r ((*i)->region());
4452
4453                 TimeAxisView& tv = (*i)->get_time_axis_view();
4454                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4455                 latest_regionviews.clear ();
4456                 sigc::connection c = rtv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4457
4458                 playlist = (*i)->region()->playlist();
4459                 XMLNode &before = playlist->get_state();
4460                 playlist->duplicate (r, r->last_frame(), times);
4461                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4462
4463                 c.disconnect ();
4464
4465                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4466         }
4467
4468         commit_reversible_command ();
4469
4470         if (!foo.empty()) {
4471                 selection->set (foo);
4472         }
4473 }
4474
4475 void
4476 Editor::duplicate_selection (float times)
4477 {
4478         if (selection->time.empty() || selection->tracks.empty()) {
4479                 return;
4480         }
4481
4482         boost::shared_ptr<Playlist> playlist;
4483         vector<boost::shared_ptr<Region> > new_regions;
4484         vector<boost::shared_ptr<Region> >::iterator ri;
4485
4486         create_region_from_selection (new_regions);
4487
4488         if (new_regions.empty()) {
4489                 return;
4490         }
4491
4492         begin_reversible_command (_("duplicate selection"));
4493
4494         ri = new_regions.begin();
4495
4496         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4497                 if ((playlist = (*i)->playlist()) == 0) {
4498                         continue;
4499                 }
4500                 XMLNode &before = playlist->get_state();
4501                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4502                 XMLNode &after = playlist->get_state();
4503                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4504
4505                 ++ri;
4506                 if (ri == new_regions.end()) {
4507                         --ri;
4508                 }
4509         }
4510
4511         commit_reversible_command ();
4512 }
4513
4514 void
4515 Editor::reset_point_selection ()
4516 {
4517         /* reset all selected points to the relevant default value */
4518
4519         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4520
4521                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4522
4523                 if (atv) {
4524                         atv->reset_objects (selection->points);
4525                 }
4526         }
4527 }
4528
4529 void
4530 Editor::center_playhead ()
4531 {
4532         float page = _canvas_width * frames_per_unit;
4533         center_screen_internal (playhead_cursor->current_frame, page);
4534 }
4535
4536 void
4537 Editor::center_edit_point ()
4538 {
4539         float page = _canvas_width * frames_per_unit;
4540         center_screen_internal (get_preferred_edit_position(), page);
4541 }
4542
4543 void
4544 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4545 {
4546         begin_reversible_command (_("clear playlist"));
4547         XMLNode &before = playlist->get_state();
4548         playlist->clear ();
4549         XMLNode &after = playlist->get_state();
4550         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4551         commit_reversible_command ();
4552 }
4553
4554 void
4555 Editor::nudge_track (bool use_edit, bool forwards)
4556 {
4557         boost::shared_ptr<Playlist> playlist;
4558         nframes64_t distance;
4559         nframes64_t next_distance;
4560         nframes64_t start;
4561
4562         if (use_edit) {
4563                 start = get_preferred_edit_position();
4564         } else {
4565                 start = 0;
4566         }
4567
4568         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4569                 return;
4570         }
4571
4572         if (selection->tracks.empty()) {
4573                 return;
4574         }
4575
4576         begin_reversible_command (_("nudge track"));
4577
4578         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4579
4580                 if ((playlist = (*i)->playlist()) == 0) {
4581                         continue;
4582                 }
4583
4584                 XMLNode &before = playlist->get_state();
4585                 playlist->nudge_after (start, distance, forwards);
4586                 XMLNode &after = playlist->get_state();
4587                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4588         }
4589
4590         commit_reversible_command ();
4591 }
4592
4593 void
4594 Editor::remove_last_capture ()
4595 {
4596         vector<string> choices;
4597         string prompt;
4598
4599         if (!session) {
4600                 return;
4601         }
4602
4603         if (Config->get_verify_remove_last_capture()) {
4604                 prompt  = _("Do you really want to destroy the last capture?"
4605                             "\n(This is destructive and cannot be undone)");
4606
4607                 choices.push_back (_("No, do nothing."));
4608                 choices.push_back (_("Yes, destroy it."));
4609
4610                 Gtkmm2ext::Choice prompter (prompt, choices);
4611
4612                 if (prompter.run () == 1) {
4613                         session->remove_last_capture ();
4614                 }
4615
4616         } else {
4617                 session->remove_last_capture();
4618         }
4619 }
4620
4621 void
4622 Editor::normalize_region ()
4623 {
4624         if (!session) {
4625                 return;
4626         }
4627
4628         RegionSelection rs;
4629         get_regions_for_action (rs);
4630
4631         if (rs.empty()) {
4632                 return;
4633         }
4634
4635         Dialog dialog (rs.size() > 1 ? _("Normalize regions") : _("Normalize region"));
4636         HBox hbox;
4637         hbox.pack_start (*manage (new Label (_("Normalize to:"))));
4638         SpinButton spin (0.2, 2);
4639         spin.set_range (-112, 0);
4640         spin.set_increments (0.1, 1);
4641         spin.set_value (0);
4642         hbox.pack_start (spin);
4643         spin.set_value (_last_normalization_value);
4644         hbox.pack_start (*manage (new Label (_("dbFS"))));
4645         hbox.show_all ();
4646         dialog.get_vbox()->pack_start (hbox);
4647         dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
4648         dialog.add_button (_("Normalize"), RESPONSE_ACCEPT);
4649
4650         if (dialog.run () == RESPONSE_CANCEL) {
4651                 return;
4652         }
4653
4654         begin_reversible_command (_("normalize"));
4655
4656         track_canvas->get_window()->set_cursor (*wait_cursor);
4657         gdk_flush ();
4658
4659         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4660                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4661                 if (!arv)
4662                         continue;
4663                 XMLNode &before = arv->region()->get_state();
4664                 arv->audio_region()->normalize_to (spin.get_value());
4665                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4666         }
4667
4668         commit_reversible_command ();
4669         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4670
4671         _last_normalization_value = spin.get_value ();
4672 }
4673
4674
4675 void
4676 Editor::reset_region_scale_amplitude ()
4677 {
4678         if (!session) {
4679                 return;
4680         }
4681
4682         RegionSelection rs;
4683
4684         get_regions_for_action (rs);
4685
4686         if (rs.empty()) {
4687                 return;
4688         }
4689
4690         begin_reversible_command ("reset gain");
4691
4692         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4693                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4694                 if (!arv)
4695                         continue;
4696                 XMLNode &before = arv->region()->get_state();
4697                 arv->audio_region()->set_scale_amplitude (1.0f);
4698                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4699         }
4700
4701         commit_reversible_command ();
4702 }
4703
4704 void
4705 Editor::adjust_region_scale_amplitude (bool up)
4706 {
4707         if (!session) {
4708                 return;
4709         }
4710
4711         RegionSelection rs;
4712
4713         get_regions_for_action (rs);
4714
4715         if (rs.empty()) {
4716                 return;
4717         }
4718
4719         begin_reversible_command ("denormalize");
4720
4721         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4722                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4723                 if (!arv)
4724                         continue;
4725                 XMLNode &before = arv->region()->get_state();
4726
4727                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4728
4729                 if (up) {
4730                         fraction += 0.05;
4731                         fraction = min (fraction, 1.0);
4732                 } else {
4733                         fraction -= 0.05;
4734                         fraction = max (fraction, 0.0);
4735                 }
4736
4737                 if (!up && fraction <= 0) {
4738                         continue;
4739                 }
4740
4741                 fraction = slider_position_to_gain (fraction);
4742
4743                 if (up && fraction >= 2.0) {
4744                         continue;
4745                 }
4746
4747                 arv->audio_region()->set_scale_amplitude (fraction);
4748                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4749         }
4750
4751         commit_reversible_command ();
4752 }
4753
4754
4755 void
4756 Editor::reverse_region ()
4757 {
4758         if (!session) {
4759                 return;
4760         }
4761
4762         Reverse rev (*session);
4763         apply_filter (rev, _("reverse regions"));
4764 }
4765
4766 void
4767 Editor::strip_region_silence ()
4768 {
4769         if (!session) {
4770                 return;
4771         }
4772
4773         RegionSelection rs;
4774         get_regions_for_action (rs);
4775
4776         if (rs.empty()) {
4777                 return;
4778         }
4779
4780         std::list<boost::shared_ptr<AudioRegion> > ar;
4781
4782         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4783                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*i);
4784                 if (arv) {
4785                         ar.push_back (arv->audio_region ());
4786                 }
4787         }
4788
4789         StripSilenceDialog d (ar);
4790         int const r = d.run ();
4791
4792         if (r == Gtk::RESPONSE_OK) {
4793                 StripSilence s (*session, d.threshold (), d.minimum_length (), d.fade_length ());
4794                 apply_filter (s, _("strip silence"));
4795         }
4796 }
4797
4798 Command*
4799 Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv)
4800 {
4801         Evoral::Sequence<Evoral::MusicalTime>::Notes selected;
4802         mrv.selection_as_notelist (selected);
4803
4804         vector<Evoral::Sequence<Evoral::MusicalTime>::Notes> v;
4805         v.push_back (selected);
4806
4807         return op (mrv.midi_region()->model(), v);
4808 }
4809
4810 void
4811 Editor::apply_midi_note_edit_op (MidiOperator& op)
4812 {
4813         RegionSelection rs;
4814         Command* cmd;
4815
4816         get_regions_for_action (rs);
4817
4818         if (rs.empty()) {
4819                 return;
4820         }
4821
4822         begin_reversible_command (op.name ());
4823
4824         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4825                 RegionSelection::iterator tmp = r;
4826                 ++tmp;
4827
4828                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4829
4830                 if (mrv) {
4831                         cmd = apply_midi_note_edit_op_to_region (op, *mrv);
4832                         if (cmd) {
4833                                 (*cmd)();
4834                                 session->add_command (cmd);
4835                         }
4836                 }
4837
4838                 r = tmp;
4839         }
4840
4841         commit_reversible_command ();
4842         rs.clear ();
4843 }
4844
4845 void
4846 Editor::quantize_region ()
4847 {
4848         if (!session) {
4849                 return;
4850         }
4851
4852         QuantizeDialog* qd = new QuantizeDialog (*this);
4853
4854         qd->present ();
4855         qd->run ();
4856         qd->hide ();
4857
4858         Quantize quant (*session, Plain,
4859                         qd->snap_start(), qd->snap_end(),
4860                         qd->start_grid_size(), qd->end_grid_size(),
4861                         qd->strength(), qd->swing(), qd->threshold());
4862
4863         apply_midi_note_edit_op (quant);
4864 }
4865
4866 void
4867 Editor::apply_filter (Filter& filter, string command)
4868 {
4869         RegionSelection rs;
4870
4871         get_regions_for_action (rs);
4872
4873         if (rs.empty()) {
4874                 return;
4875         }
4876
4877         begin_reversible_command (command);
4878
4879         track_canvas->get_window()->set_cursor (*wait_cursor);
4880         gdk_flush ();
4881
4882         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4883                 RegionSelection::iterator tmp = r;
4884                 ++tmp;
4885
4886                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4887                 if (arv) {
4888                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4889
4890                         if (arv->audio_region()->apply (filter) == 0) {
4891
4892                                 XMLNode &before = playlist->get_state();
4893
4894                                 if (filter.results.empty ()) {
4895
4896                                         /* no regions returned; remove the old one */
4897                                         playlist->remove_region (arv->region ());
4898
4899                                 } else {
4900
4901                                         std::vector<boost::shared_ptr<Region> >::iterator res = filter.results.begin ();
4902
4903                                         /* first region replaces the old one */
4904                                         playlist->replace_region (arv->region(), *res, (*res)->position());
4905                                         ++res;
4906
4907                                         /* add the rest */
4908                                         while (res != filter.results.end()) {
4909                                                 playlist->add_region (*res, (*res)->position());
4910                                                 ++res;
4911                                         }
4912
4913                                 }
4914
4915                                 XMLNode &after = playlist->get_state();
4916                                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4917                         } else {
4918                                 goto out;
4919                         }
4920                 }
4921
4922                 r = tmp;
4923         }
4924
4925         commit_reversible_command ();
4926         rs.clear ();
4927
4928   out:
4929         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4930 }
4931
4932 void
4933 Editor::region_selection_op (void (Region::*pmf)(void))
4934 {
4935         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4936                 Region* region = (*i)->region().get();
4937                 (region->*pmf)();
4938         }
4939 }
4940
4941
4942 void
4943 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4944 {
4945         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4946                 Region* region = (*i)->region().get();
4947                 (region->*pmf)(arg);
4948         }
4949 }
4950
4951 void
4952 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4953 {
4954         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4955                 Region* region = (*i)->region().get();
4956                 (region->*pmf)(yn);
4957         }
4958 }
4959
4960 void
4961 Editor::external_edit_region ()
4962 {
4963         /* more to come */
4964 }
4965
4966 void
4967 Editor::brush (nframes64_t pos)
4968 {
4969         RegionSelection sel;
4970         RegionSelection rs;
4971
4972         get_regions_for_action (rs);
4973
4974         snap_to (pos);
4975
4976         if (rs.empty()) {
4977                 return;
4978         }
4979
4980         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4981                 mouse_brush_insert_region ((*i), pos);
4982         }
4983 }
4984
4985 void
4986 Editor::reset_region_gain_envelopes ()
4987 {
4988         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4989
4990         if (!session || rs.empty()) {
4991                 return;
4992         }
4993
4994         session->begin_reversible_command (_("reset region gain"));
4995
4996         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4997                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4998                 if (arv) {
4999                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
5000                         XMLNode& before (alist->get_state());
5001
5002                         arv->audio_region()->set_default_envelope ();
5003                         session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
5004                 }
5005         }
5006
5007         session->commit_reversible_command ();
5008 }
5009
5010 void
5011 Editor::toggle_gain_envelope_visibility ()
5012 {
5013         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5014
5015         if (!session || rs.empty()) {
5016                 return;
5017         }
5018
5019         session->begin_reversible_command (_("region gain envelope visible"));
5020
5021         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5022                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5023                 if (arv) {
5024                         XMLNode &before = arv->region()->get_state ();
5025                         arv->set_envelope_visible (!arv->envelope_visible());
5026                         XMLNode &after = arv->region()->get_state ();
5027                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
5028                 }
5029         }
5030
5031         session->commit_reversible_command ();
5032 }
5033
5034 void
5035 Editor::toggle_gain_envelope_active ()
5036 {
5037         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5038
5039         if (!session || rs.empty()) {
5040                 return;
5041         }
5042
5043         session->begin_reversible_command (_("region gain envelope active"));
5044
5045         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5046                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5047                 if (arv) {
5048                         XMLNode &before = arv->region()->get_state ();
5049                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
5050                         XMLNode &after = arv->region()->get_state ();
5051                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
5052                 }
5053         }
5054
5055         session->commit_reversible_command ();
5056 }
5057
5058 void
5059 Editor::toggle_region_lock ()
5060 {
5061         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5062
5063         if (!session || rs.empty()) {
5064                 return;
5065         }
5066
5067         session->begin_reversible_command (_("region lock"));
5068
5069         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5070                 XMLNode &before = (*i)->region()->get_state ();
5071                 (*i)->region()->set_locked (!(*i)->region()->locked());
5072                 XMLNode &after = (*i)->region()->get_state ();
5073                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5074         }
5075
5076         session->commit_reversible_command ();
5077 }
5078
5079 void
5080 Editor::set_region_lock_style (Region::PositionLockStyle ps)
5081 {
5082         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5083
5084         if (!session || rs.empty()) {
5085                 return;
5086         }
5087
5088         session->begin_reversible_command (_("region lock style"));
5089
5090         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5091                 XMLNode &before = (*i)->region()->get_state ();
5092                 (*i)->region()->set_position_lock_style (ps);
5093                 XMLNode &after = (*i)->region()->get_state ();
5094                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5095         }
5096
5097         session->commit_reversible_command ();
5098 }
5099
5100
5101 void
5102 Editor::toggle_region_mute ()
5103 {
5104         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5105
5106         if (!session || rs.empty()) {
5107                 return;
5108         }
5109
5110         session->begin_reversible_command (_("region mute"));
5111
5112         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5113                 XMLNode &before = (*i)->region()->get_state ();
5114                 (*i)->region()->set_muted (!(*i)->region()->muted());
5115                 XMLNode &after = (*i)->region()->get_state ();
5116                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5117         }
5118
5119         session->commit_reversible_command ();
5120 }
5121
5122 void
5123 Editor::toggle_region_opaque ()
5124 {
5125         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5126
5127         if (!session || rs.empty()) {
5128                 return;
5129         }
5130
5131         session->begin_reversible_command (_("region opacity"));
5132
5133         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5134                 XMLNode &before = (*i)->region()->get_state ();
5135                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
5136                 XMLNode &after = (*i)->region()->get_state ();
5137                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5138         }
5139
5140         session->commit_reversible_command ();
5141 }
5142
5143 void
5144 Editor::toggle_record_enable ()
5145 {
5146         bool new_state = false;
5147         bool first = true;
5148         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5149                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5150                 if (!rtav)
5151                         continue;
5152                 if (!rtav->is_track())
5153                         continue;
5154
5155                 if (first) {
5156                         new_state = !rtav->track()->record_enabled();
5157                         first = false;
5158                 }
5159
5160                 rtav->track()->set_record_enable(new_state, this);
5161         }
5162 }
5163
5164
5165 void
5166 Editor::set_fade_length (bool in)
5167 {
5168         RegionSelection rs;
5169
5170         get_regions_for_action (rs, true);
5171
5172         if (rs.empty()) {
5173                 return;
5174         }
5175
5176         /* we need a region to measure the offset from the start */
5177
5178         RegionView* rv = rs.front ();
5179
5180         nframes64_t pos = get_preferred_edit_position();
5181         nframes64_t len;
5182         char* cmd;
5183
5184         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
5185                 /* edit point is outside the relevant region */
5186                 return;
5187         }
5188
5189         if (in) {
5190                 if (pos <= rv->region()->position()) {
5191                         /* can't do it */
5192                         return;
5193                 }
5194                 len = pos - rv->region()->position();
5195                 cmd = _("set fade in length");
5196         } else {
5197                 if (pos >= rv->region()->last_frame()) {
5198                         /* can't do it */
5199                         return;
5200                 }
5201                 len = rv->region()->last_frame() - pos;
5202                 cmd = _("set fade out length");
5203         }
5204
5205         begin_reversible_command (cmd);
5206
5207         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5208                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5209
5210                 if (!tmp) {
5211                         return;
5212                 }
5213
5214                 boost::shared_ptr<AutomationList> alist;
5215                 if (in) {
5216                         alist = tmp->audio_region()->fade_in();
5217                 } else {
5218                         alist = tmp->audio_region()->fade_out();
5219                 }
5220
5221                 XMLNode &before = alist->get_state();
5222
5223                 if (in) {
5224                         tmp->audio_region()->set_fade_in_length (len);
5225                         tmp->audio_region()->set_fade_in_active (true);
5226                 } else {
5227                         tmp->audio_region()->set_fade_out_length (len);
5228                         tmp->audio_region()->set_fade_out_active (true);
5229                 }
5230
5231                 XMLNode &after = alist->get_state();
5232                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
5233         }
5234
5235         commit_reversible_command ();
5236 }
5237
5238 void
5239 Editor::toggle_fade_active (bool in)
5240 {
5241         RegionSelection rs;
5242
5243         get_regions_for_action (rs);
5244
5245         if (rs.empty()) {
5246                 return;
5247         }
5248
5249         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
5250         bool have_switch = false;
5251         bool yn = false;
5252
5253         begin_reversible_command (cmd);
5254
5255         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5256                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5257
5258                 if (!tmp) {
5259                         return;
5260                 }
5261
5262                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
5263
5264                 /* make the behaviour consistent across all regions */
5265
5266                 if (!have_switch) {
5267                         if (in) {
5268                                 yn = region->fade_in_active();
5269                         } else {
5270                                 yn = region->fade_out_active();
5271                         }
5272                         have_switch = true;
5273                 }
5274
5275                 XMLNode &before = region->get_state();
5276                 if (in) {
5277                         region->set_fade_in_active (!yn);
5278                 } else {
5279                         region->set_fade_out_active (!yn);
5280                 }
5281                 XMLNode &after = region->get_state();
5282                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
5283         }
5284
5285         commit_reversible_command ();
5286 }
5287
5288 void
5289 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
5290 {
5291         RegionSelection rs;
5292
5293         get_regions_for_action (rs);
5294
5295         if (rs.empty()) {
5296                 return;
5297         }
5298
5299         begin_reversible_command (_("set fade in shape"));
5300
5301         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5302                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5303
5304                 if (!tmp) {
5305                         return;
5306                 }
5307
5308                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
5309                 XMLNode &before = alist->get_state();
5310
5311                 tmp->audio_region()->set_fade_in_shape (shape);
5312
5313                 XMLNode &after = alist->get_state();
5314                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5315         }
5316
5317         commit_reversible_command ();
5318
5319 }
5320
5321 void
5322 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
5323 {
5324         RegionSelection rs;
5325
5326         get_regions_for_action (rs);
5327
5328         if (rs.empty()) {
5329                 return;
5330         }
5331
5332         begin_reversible_command (_("set fade out shape"));
5333
5334         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5335                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5336
5337                 if (!tmp) {
5338                         return;
5339                 }
5340
5341                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
5342                 XMLNode &before = alist->get_state();
5343
5344                 tmp->audio_region()->set_fade_out_shape (shape);
5345
5346                 XMLNode &after = alist->get_state();
5347                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5348         }
5349
5350         commit_reversible_command ();
5351 }
5352
5353 void
5354 Editor::set_fade_in_active (bool yn)
5355 {
5356         RegionSelection rs;
5357
5358         get_regions_for_action (rs);
5359
5360         if (rs.empty()) {
5361                 return;
5362         }
5363
5364         begin_reversible_command (_("set fade in active"));
5365
5366         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5367                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5368
5369                 if (!tmp) {
5370                         return;
5371                 }
5372
5373
5374                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5375
5376                 XMLNode &before = ar->get_state();
5377
5378                 ar->set_fade_in_active (yn);
5379
5380                 XMLNode &after = ar->get_state();
5381                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5382         }
5383
5384         commit_reversible_command ();
5385 }
5386
5387 void
5388 Editor::set_fade_out_active (bool yn)
5389 {
5390         RegionSelection rs;
5391
5392         get_regions_for_action (rs);
5393
5394         if (rs.empty()) {
5395                 return;
5396         }
5397
5398         begin_reversible_command (_("set fade out active"));
5399
5400         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5401                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5402
5403                 if (!tmp) {
5404                         return;
5405                 }
5406
5407                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5408
5409                 XMLNode &before = ar->get_state();
5410
5411                 ar->set_fade_out_active (yn);
5412
5413                 XMLNode &after = ar->get_state();
5414                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5415         }
5416
5417         commit_reversible_command ();
5418 }
5419
5420 void
5421 Editor::toggle_selected_region_fades (int dir)
5422 {
5423         RegionSelection rs;
5424         RegionSelection::iterator i;
5425         boost::shared_ptr<AudioRegion> ar;
5426         bool yn;
5427
5428         get_regions_for_action (rs);
5429
5430         if (rs.empty()) {
5431                 return;
5432         }
5433
5434         for (i = rs.begin(); i != rs.end(); ++i) {
5435                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5436                         if (dir == -1) {
5437                                 yn = ar->fade_out_active ();
5438                         } else {
5439                                 yn = ar->fade_in_active ();
5440                         }
5441                         break;
5442                 }
5443         }
5444
5445         if (i == rs.end()) {
5446                 return;
5447         }
5448
5449         /* XXX should this undo-able? */
5450
5451         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5452                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5453                         continue;
5454                 }
5455                 if (dir == 1 || dir == 0) {
5456                         ar->set_fade_in_active (!yn);
5457                 }
5458
5459                 if (dir == -1 || dir == 0) {
5460                         ar->set_fade_out_active (!yn);
5461                 }
5462         }
5463 }
5464
5465
5466 /** Update region fade visibility after its configuration has been changed */
5467 void
5468 Editor::update_region_fade_visibility ()
5469 {
5470         bool _fade_visibility = session->config.get_show_region_fades ();
5471
5472         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5473                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5474                 if (v) {
5475                         if (_fade_visibility) {
5476                                 v->audio_view()->show_all_fades ();
5477                         } else {
5478                                 v->audio_view()->hide_all_fades ();
5479                         }
5480                 }
5481         }
5482 }
5483
5484 /** Update crossfade visibility after its configuration has been changed */
5485 void
5486 Editor::update_xfade_visibility ()
5487 {
5488         _xfade_visibility = session->config.get_xfades_visible ();
5489
5490         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5491                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5492                 if (v) {
5493                         if (_xfade_visibility) {
5494                                 v->show_all_xfades ();
5495                         } else {
5496                                 v->hide_all_xfades ();
5497                         }
5498                 }
5499         }
5500 }
5501
5502 void
5503 Editor::set_edit_point ()
5504 {
5505         nframes64_t where;
5506         bool ignored;
5507
5508         if (!mouse_frame (where, ignored)) {
5509                 return;
5510         }
5511
5512         snap_to (where);
5513
5514         if (selection->markers.empty()) {
5515
5516                 mouse_add_new_marker (where);
5517
5518         } else {
5519                 bool ignored;
5520
5521                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5522
5523                 if (loc) {
5524                         loc->move_to (where);
5525                 }
5526         }
5527 }
5528
5529 void
5530 Editor::set_playhead_cursor ()
5531 {
5532         if (entered_marker) {
5533                 session->request_locate (entered_marker->position(), session->transport_rolling());
5534         } else {
5535                 nframes64_t where;
5536                 bool ignored;
5537
5538                 if (!mouse_frame (where, ignored)) {
5539                         return;
5540                 }
5541
5542                 snap_to (where);
5543
5544                 if (session) {
5545                         session->request_locate (where, session->transport_rolling());
5546                 }
5547         }
5548 }
5549
5550 void
5551 Editor::split ()
5552 {
5553         RegionSelection rs;
5554
5555         get_regions_for_action (rs, true);
5556
5557         nframes64_t where = get_preferred_edit_position();
5558
5559         if (rs.empty()) {
5560                 return;
5561         }
5562
5563         split_regions_at (where, rs);
5564 }
5565
5566 void
5567 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
5568 {
5569         if (entered_track && mouse_mode == MouseObject) {
5570                 if (!selection->tracks.empty()) {
5571                         if (!selection->selected (entered_track)) {
5572                                 selection->add (entered_track);
5573                         }
5574                 } else {
5575                         /* there is no selection, but this operation requires/prefers selected objects */
5576
5577                         if (op_really_wants_one_track_if_none_are_selected) {
5578                                 selection->set (entered_track);
5579                         }
5580                 }
5581         }
5582 }
5583
5584 struct EditorOrderRouteSorter {
5585     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5586             /* use of ">" forces the correct sort order */
5587             return a->order_key ("editor") < b->order_key ("editor");
5588     }
5589 };
5590
5591 void
5592 Editor::select_next_route()
5593 {
5594         if (selection->tracks.empty()) {
5595                 selection->set (track_views.front());
5596                 return;
5597         }
5598
5599         TimeAxisView* current = selection->tracks.front();
5600
5601         RouteUI *rui;
5602         do {
5603                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5604                         if (*i == current) {
5605                                 ++i;
5606                                 if (i != track_views.end()) {
5607                                         current = (*i);
5608                                 } else {
5609                                         current = (*(track_views.begin()));
5610                                         //selection->set (*(track_views.begin()));
5611                                 }
5612                                 break;
5613                         }
5614                 }
5615                 rui = dynamic_cast<RouteUI *>(current);
5616         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5617
5618         selection->set(current);
5619
5620         ensure_track_visible(current);
5621 }
5622
5623 void
5624 Editor::select_prev_route()
5625 {
5626         if (selection->tracks.empty()) {
5627                 selection->set (track_views.front());
5628                 return;
5629         }
5630
5631         TimeAxisView* current = selection->tracks.front();
5632
5633         RouteUI *rui;
5634         do {
5635                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5636                         if (*i == current) {
5637                                 ++i;
5638                                 if (i != track_views.rend()) {
5639                                         current = (*i);
5640                                 } else {
5641                                         current = *(track_views.rbegin());
5642                                 }
5643                                 break;
5644                         }
5645                 }
5646                 rui = dynamic_cast<RouteUI *>(current);
5647         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5648
5649         selection->set (current);
5650
5651         ensure_track_visible(current);
5652 }
5653
5654 void
5655 Editor::ensure_track_visible(TimeAxisView *track)
5656 {
5657         if (track->hidden())
5658                 return;
5659
5660         double const current_view_min_y = vertical_adjustment.get_value();
5661         double const current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - canvas_timebars_vsize;
5662
5663         double const track_min_y = track->y_position ();
5664         double const track_max_y = track->y_position () + track->effective_height ();
5665
5666         if (track_min_y >= current_view_min_y &&
5667             track_max_y <= current_view_max_y) {
5668                 return;
5669         }
5670
5671         double new_value;
5672
5673         if (track_min_y < current_view_min_y) {
5674                 // Track is above the current view
5675                 new_value = track_min_y;
5676         } else {
5677                 // Track is below the current view
5678                 new_value = track->y_position () + track->effective_height() + canvas_timebars_vsize - vertical_adjustment.get_page_size();
5679         }
5680
5681         vertical_adjustment.set_value(new_value);
5682 }
5683
5684 void
5685 Editor::set_loop_from_selection (bool play)
5686 {
5687         if (session == 0 || selection->time.empty()) {
5688                 return;
5689         }
5690
5691         nframes64_t start = selection->time[clicked_selection].start;
5692         nframes64_t end = selection->time[clicked_selection].end;
5693
5694         set_loop_range (start, end,  _("set loop range from selection"));
5695
5696         if (play) {
5697                 session->request_play_loop (true);
5698                 session->request_locate (start, true);
5699         }
5700 }
5701
5702 void
5703 Editor::set_loop_from_edit_range (bool play)
5704 {
5705         if (session == 0) {
5706                 return;
5707         }
5708
5709         nframes64_t start;
5710         nframes64_t end;
5711
5712         if (!get_edit_op_range (start, end)) {
5713                 return;
5714         }
5715
5716         set_loop_range (start, end,  _("set loop range from edit range"));
5717
5718         if (play) {
5719                 session->request_play_loop (true);
5720                 session->request_locate (start, true);
5721         }
5722 }
5723
5724 void
5725 Editor::set_loop_from_region (bool play)
5726 {
5727         nframes64_t start = max_frames;
5728         nframes64_t end = 0;
5729
5730         RegionSelection rs;
5731
5732         get_regions_for_action (rs);
5733
5734         if (rs.empty()) {
5735                 return;
5736         }
5737
5738         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5739                 if ((*i)->region()->position() < start) {
5740                         start = (*i)->region()->position();
5741                 }
5742                 if ((*i)->region()->last_frame() + 1 > end) {
5743                         end = (*i)->region()->last_frame() + 1;
5744                 }
5745         }
5746
5747         set_loop_range (start, end, _("set loop range from region"));
5748
5749         if (play) {
5750                 session->request_play_loop (true);
5751                 session->request_locate (start, true);
5752         }
5753 }
5754
5755 void
5756 Editor::set_punch_from_selection ()
5757 {
5758         if (session == 0 || selection->time.empty()) {
5759                 return;
5760         }
5761
5762         nframes64_t start = selection->time[clicked_selection].start;
5763         nframes64_t end = selection->time[clicked_selection].end;
5764
5765         set_punch_range (start, end,  _("set punch range from selection"));
5766 }
5767
5768 void
5769 Editor::set_punch_from_edit_range ()
5770 {
5771         if (session == 0) {
5772                 return;
5773         }
5774
5775         nframes64_t start;
5776         nframes64_t end;
5777
5778         if (!get_edit_op_range (start, end)) {
5779                 return;
5780         }
5781
5782         set_punch_range (start, end,  _("set punch range from edit range"));
5783 }
5784
5785 void
5786 Editor::set_punch_from_region ()
5787 {
5788         nframes64_t start = max_frames;
5789         nframes64_t end = 0;
5790
5791         RegionSelection rs;
5792
5793         get_regions_for_action (rs);
5794
5795         if (rs.empty()) {
5796                 return;
5797         }
5798
5799         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5800                 if ((*i)->region()->position() < start) {
5801                         start = (*i)->region()->position();
5802                 }
5803                 if ((*i)->region()->last_frame() + 1 > end) {
5804                         end = (*i)->region()->last_frame() + 1;
5805                 }
5806         }
5807
5808         set_punch_range (start, end, _("set punch range from region"));
5809 }
5810
5811 void
5812 Editor::pitch_shift_regions ()
5813 {
5814         RegionSelection rs;
5815
5816         get_regions_for_action (rs);
5817
5818         if (rs.empty()) {
5819                 return;
5820         }
5821
5822         pitch_shift (rs, 1.2);
5823 }
5824
5825 void
5826 Editor::use_region_as_bar ()
5827 {
5828         if (!session) {
5829                 return;
5830         }
5831
5832         RegionSelection rs;
5833
5834         get_regions_for_action (rs);
5835
5836         if (rs.empty()) {
5837                 return;
5838         }
5839
5840         RegionView* rv = rs.front();
5841
5842         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5843 }
5844
5845 void
5846 Editor::use_range_as_bar ()
5847 {
5848         nframes64_t start, end;
5849         if (get_edit_op_range (start, end)) {
5850                 define_one_bar (start, end);
5851         }
5852 }
5853
5854 void
5855 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5856 {
5857         nframes64_t length = end - start;
5858
5859         const Meter& m (session->tempo_map().meter_at (start));
5860
5861         /* length = 1 bar */
5862
5863         /* now we want frames per beat.
5864            we have frames per bar, and beats per bar, so ...
5865         */
5866
5867         double frames_per_beat = length / m.beats_per_bar();
5868
5869         /* beats per minute = */
5870
5871         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5872
5873         /* now decide whether to:
5874
5875             (a) set global tempo
5876             (b) add a new tempo marker
5877
5878         */
5879
5880         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5881
5882         bool do_global = false;
5883
5884         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5885
5886                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5887                    at the start, or create a new marker
5888                 */
5889
5890                 vector<string> options;
5891                 options.push_back (_("Cancel"));
5892                 options.push_back (_("Add new marker"));
5893                 options.push_back (_("Set global tempo"));
5894                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5895                           options);
5896                 c.set_default_response (2);
5897
5898                 switch (c.run()) {
5899                 case 0:
5900                         return;
5901
5902                 case 2:
5903                         do_global = true;
5904                         break;
5905
5906                 default:
5907                         do_global = false;
5908                 }
5909
5910         } else {
5911
5912                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5913                    if the marker is at the region starter, change it, otherwise add
5914                    a new tempo marker
5915                 */
5916         }
5917
5918         begin_reversible_command (_("set tempo from region"));
5919         XMLNode& before (session->tempo_map().get_state());
5920
5921         if (do_global) {
5922                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5923         } else if (t.frame() == start) {
5924                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5925         } else {
5926                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5927         }
5928
5929         XMLNode& after (session->tempo_map().get_state());
5930
5931         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5932         commit_reversible_command ();
5933 }
5934
5935 void
5936 Editor::split_region_at_transients ()
5937 {
5938         AnalysisFeatureList positions;
5939
5940         if (!session) {
5941                 return;
5942         }
5943
5944         RegionSelection rs;
5945
5946         get_regions_for_action (rs);
5947
5948         if (rs.empty()) {
5949                 return;
5950         }
5951
5952         session->begin_reversible_command (_("split regions"));
5953
5954         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5955
5956                 RegionSelection::iterator tmp;
5957
5958                 tmp = i;
5959                 ++tmp;
5960
5961                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5962
5963                 if (ar && (ar->get_transients (positions) == 0)) {
5964                         split_region_at_points ((*i)->region(), positions, true);
5965                         positions.clear ();
5966                 }
5967
5968                 i = tmp;
5969         }
5970
5971         session->commit_reversible_command ();
5972
5973 }
5974
5975 void
5976 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5977 {
5978         bool use_rhythmic_rodent = false;
5979
5980         boost::shared_ptr<Playlist> pl = r->playlist();
5981
5982         if (!pl) {
5983                 return;
5984         }
5985
5986         if (positions.empty()) {
5987                 return;
5988         }
5989
5990
5991         if (positions.size() > 20) {
5992                 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);
5993                 MessageDialog msg (msgstr,
5994                                    false,
5995                                    Gtk::MESSAGE_INFO,
5996                                    Gtk::BUTTONS_OK_CANCEL);
5997
5998                 if (can_ferret) {
5999                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
6000                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
6001                 } else {
6002                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
6003                 }
6004
6005                 msg.set_title (_("Excessive split?"));
6006                 msg.present ();
6007
6008                 int response = msg.run();
6009                 msg.hide ();
6010                 switch (response) {
6011                 case RESPONSE_OK:
6012                         break;
6013                 case RESPONSE_APPLY:
6014                         use_rhythmic_rodent = true;
6015                         break;
6016                 default:
6017                         return;
6018                 }
6019         }
6020
6021         if (use_rhythmic_rodent) {
6022                 show_rhythm_ferret ();
6023                 return;
6024         }
6025
6026         AnalysisFeatureList::const_iterator x;
6027
6028         nframes64_t pos = r->position();
6029
6030         XMLNode& before (pl->get_state());
6031
6032         x = positions.begin();
6033
6034         while (x != positions.end()) {
6035                 if ((*x) > pos) {
6036                         break;
6037                 }
6038                 ++x;
6039         }
6040
6041         if (x == positions.end()) {
6042                 return;
6043         }
6044
6045         pl->freeze ();
6046         pl->remove_region (r);
6047
6048         while (x != positions.end()) {
6049
6050                 /* file start = original start + how far we from the initial position ?
6051                  */
6052
6053                 nframes64_t file_start = r->start() + (pos - r->position());
6054
6055                 /* length = next position - current position
6056                  */
6057
6058                 nframes64_t len = (*x) - pos;
6059
6060                 /* XXX we do we really want to allow even single-sample regions?
6061                    shouldn't we have some kind of lower limit on region size?
6062                 */
6063
6064                 if (len <= 0) {
6065                         break;
6066                 }
6067
6068                 string new_name;
6069
6070                 if (session->region_name (new_name, r->name())) {
6071                         break;
6072                 }
6073
6074                 /* do NOT announce new regions 1 by one, just wait till they are all done */
6075
6076                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
6077                 pl->add_region (nr, pos);
6078
6079                 pos += len;
6080                 ++x;
6081
6082                 if (*x > r->last_frame()) {
6083
6084                         /* add final fragment */
6085
6086                         file_start = r->start() + (pos - r->position());
6087                         len = r->last_frame() - pos;
6088
6089                         nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags);
6090                         pl->add_region (nr, pos);
6091
6092                         break;
6093                 }
6094         }
6095
6096         pl->thaw ();
6097
6098         XMLNode& after (pl->get_state());
6099
6100         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
6101 }
6102
6103 void
6104 Editor::tab_to_transient (bool forward)
6105 {
6106         AnalysisFeatureList positions;
6107
6108         if (!session) {
6109                 return;
6110         }
6111
6112         nframes64_t pos = session->audible_frame ();
6113
6114         if (!selection->tracks.empty()) {
6115
6116                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
6117
6118                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
6119
6120                         if (rtv) {
6121                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
6122                                 if (ds) {
6123                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
6124                                         if (pl) {
6125                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
6126
6127                                                 if (result >= 0) {
6128                                                         positions.push_back (result);
6129                                                 }
6130                                         }
6131                                 }
6132                         }
6133                 }
6134
6135         } else {
6136
6137                 RegionSelection rs;
6138
6139                 get_regions_for_action (rs);
6140
6141                 if (rs.empty()) {
6142                         return;
6143                 }
6144
6145                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6146                         (*r)->region()->get_transients (positions);
6147                 }
6148         }
6149
6150         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
6151
6152         if (forward) {
6153                 AnalysisFeatureList::iterator x;
6154
6155                 for (x = positions.begin(); x != positions.end(); ++x) {
6156                         if ((*x) > pos) {
6157                                 break;
6158                         }
6159                 }
6160
6161                 if (x != positions.end ()) {
6162                         session->request_locate (*x);
6163                 }
6164
6165         } else {
6166                 AnalysisFeatureList::reverse_iterator x;
6167
6168                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
6169                         if ((*x) < pos) {
6170                                 break;
6171                         }
6172                 }
6173
6174                 if (x != positions.rend ()) {
6175                         session->request_locate (*x);
6176                 }
6177         }
6178 }
6179 void
6180 Editor::playhead_forward_to_grid ()
6181 {
6182         if (!session) return;
6183         nframes64_t pos = playhead_cursor->current_frame;
6184         if (pos < max_frames - 1) {
6185                 pos += 2;
6186                 snap_to_internal (pos, 1, false);
6187                 session->request_locate (pos);
6188         }
6189 }
6190
6191
6192 void
6193 Editor::playhead_backward_to_grid ()
6194 {
6195         if (!session) return;
6196         nframes64_t pos = playhead_cursor->current_frame;
6197         if (pos > 2) {
6198                 pos -= 2;
6199                 snap_to_internal (pos, -1, false);
6200                 session->request_locate (pos);
6201         }
6202 }
6203
6204 void
6205 Editor::set_track_height (uint32_t h)
6206 {
6207         TrackSelection& ts (selection->tracks);
6208
6209         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6210                 (*x)->set_height (h);
6211         }
6212 }
6213
6214 void
6215 Editor::toggle_tracks_active ()
6216 {
6217         TrackSelection& ts (selection->tracks);
6218         bool first = true;
6219         bool target = false;
6220
6221         if (ts.empty()) {
6222                 return;
6223         }
6224
6225         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6226                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
6227
6228                 if (rtv) {
6229                         if (first) {
6230                                 target = !rtv->_route->active();
6231                                 first = false;
6232                         }
6233                         rtv->_route->set_active (target);
6234                 }
6235         }
6236 }
6237
6238 void
6239 Editor::remove_tracks ()
6240 {
6241         TrackSelection& ts (selection->tracks);
6242
6243         if (ts.empty()) {
6244                 return;
6245         }
6246
6247         vector<string> choices;
6248         string prompt;
6249         int ntracks = 0;
6250         int nbusses = 0;
6251         const char* trackstr;
6252         const char* busstr;
6253         vector<boost::shared_ptr<Route> > routes;
6254
6255         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6256                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
6257                 if (rtv) {
6258                         if (rtv->is_track()) {
6259                                 ntracks++;
6260                         } else {
6261                                 nbusses++;
6262                         }
6263                 }
6264                 routes.push_back (rtv->_route);
6265         }
6266
6267         if (ntracks + nbusses == 0) {
6268                 return;
6269         }
6270
6271         if (ntracks > 1) {
6272                 trackstr = _("tracks");
6273         } else {
6274                 trackstr = _("track");
6275         }
6276
6277         if (nbusses > 1) {
6278                 busstr = _("busses");
6279         } else {
6280                 busstr = _("bus");
6281         }
6282
6283         if (ntracks) {
6284                 if (nbusses) {
6285                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
6286                                                     "(You may also lose the playlists associated with the %2)\n\n"
6287                                                     "This action cannot be undone!"),
6288                                                   ntracks, trackstr, nbusses, busstr);
6289                 } else {
6290                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
6291                                                     "(You may also lose the playlists associated with the %2)\n\n"
6292                                                     "This action cannot be undone!"),
6293                                                   ntracks, trackstr);
6294                 }
6295         } else if (nbusses) {
6296                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
6297                                           nbusses, busstr);
6298         }
6299
6300         choices.push_back (_("No, do nothing."));
6301         if (ntracks + nbusses > 1) {
6302                 choices.push_back (_("Yes, remove them."));
6303         } else {
6304                 choices.push_back (_("Yes, remove it."));
6305         }
6306
6307         Choice prompter (prompt, choices);
6308
6309         if (prompter.run () != 1) {
6310                 return;
6311         }
6312
6313         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
6314                 session->remove_route (*x);
6315         }
6316 }
6317
6318 void
6319 Editor::do_insert_time ()
6320 {
6321         if (selection->tracks.empty()) {
6322                 return;
6323         }
6324
6325         ArdourDialog d (*this, _("Insert Time"));
6326
6327         nframes64_t const pos = get_preferred_edit_position ();
6328
6329         d.get_vbox()->set_border_width (12);
6330         d.get_vbox()->set_spacing (4);
6331
6332         Table table (2, 2);
6333         table.set_spacings (4);
6334
6335         Label time_label (_("Time to insert:"));
6336         time_label.set_alignment (1, 0.5);
6337         table.attach (time_label, 0, 1, 0, 1, FILL | EXPAND);
6338         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, true, true);
6339         clock.set (0);
6340         clock.set_session (session);
6341         clock.set_bbt_reference (pos);
6342         table.attach (clock, 1, 2, 0, 1);
6343
6344         Label intersected_label (_("Intersected regions should:"));
6345         intersected_label.set_alignment (1, 0.5);
6346         table.attach (intersected_label, 0, 1, 1, 2, FILL | EXPAND);
6347         ComboBoxText intersected_combo;
6348         intersected_combo.append_text (_("stay in position"));
6349         intersected_combo.append_text (_("move"));
6350         intersected_combo.append_text (_("be split"));
6351         intersected_combo.set_active (0);
6352         table.attach (intersected_combo, 1, 2, 1, 2);
6353
6354         d.get_vbox()->pack_start (table);
6355
6356         CheckButton move_glued (_("Move glued regions"));
6357         d.get_vbox()->pack_start (move_glued);
6358         CheckButton move_markers (_("Move markers"));
6359         d.get_vbox()->pack_start (move_markers);
6360         CheckButton move_tempos (_("Move tempo and meter changes"));
6361         d.get_vbox()->pack_start (move_tempos);
6362
6363         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
6364         d.add_button (_("Insert time"), Gtk::RESPONSE_OK);
6365         d.show_all ();
6366
6367         int response = d.run ();
6368
6369         if (response != RESPONSE_OK) {
6370                 return;
6371         }
6372
6373         nframes64_t distance = clock.current_duration (pos);
6374
6375         if (distance == 0) {
6376                 return;
6377         }
6378
6379         InsertTimeOption opt;
6380
6381         switch (intersected_combo.get_active_row_number ()) {
6382         case 0:
6383                 opt = LeaveIntersected;
6384                 break;
6385         case 1:
6386                 opt = MoveIntersected;
6387                 break;
6388         case 2:
6389                 opt = SplitIntersected;
6390                 break;
6391         }
6392
6393         insert_time (pos, distance, opt, move_glued.get_active(), move_markers.get_active(), move_tempos.get_active());
6394 }
6395
6396 void
6397 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
6398                      bool ignore_music_glue, bool markers_too, bool tempo_too)
6399 {
6400         bool commit = false;
6401
6402         if (Config->get_edit_mode() == Lock) {
6403                 return;
6404         }
6405
6406         begin_reversible_command (_("insert time"));
6407
6408         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
6409                 /* regions */
6410                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
6411
6412                 if (pl) {
6413
6414                         XMLNode &before = pl->get_state();
6415
6416                         if (opt == SplitIntersected) {
6417                                 pl->split (pos);
6418                         }
6419
6420                         pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6421
6422                         XMLNode &after = pl->get_state();
6423
6424                         session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
6425                         commit = true;
6426                 }
6427
6428                 /* automation */
6429                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6430                 if (rtav) {
6431                         rtav->route ()->shift (pos, frames);
6432                         commit = true;
6433                 }
6434         }
6435
6436         /* markers */
6437         if (markers_too) {
6438                 bool moved = false;
6439                 XMLNode& before (session->locations()->get_state());
6440                 Locations::LocationList copy (session->locations()->list());
6441
6442                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6443
6444                         Locations::LocationList::const_iterator tmp;
6445
6446                         if ((*i)->start() >= pos) {
6447                                 (*i)->set_start ((*i)->start() + frames);
6448                                 if (!(*i)->is_mark()) {
6449                                         (*i)->set_end ((*i)->end() + frames);
6450                                 }
6451                                 moved = true;
6452                         }
6453                 }
6454
6455                 if (moved) {
6456                         XMLNode& after (session->locations()->get_state());
6457                         session->add_command (new MementoCommand<Locations>(*session->locations(), &before, &after));
6458                 }
6459         }
6460
6461         if (tempo_too) {
6462                 session->tempo_map().insert_time (pos, frames);
6463         }
6464
6465         if (commit) {
6466                 commit_reversible_command ();
6467         }
6468 }
6469
6470 void
6471 Editor::fit_selected_tracks ()
6472 {
6473         fit_tracks (selection->tracks);
6474 }
6475
6476 void
6477 Editor::fit_tracks (TrackSelection & tracks)
6478 {
6479         if (tracks.empty()) {
6480                 return;
6481         }
6482
6483         uint32_t child_heights = 0;
6484
6485         for (TrackSelection::iterator t = tracks.begin(); t != tracks.end(); ++t) {
6486
6487                 if (!(*t)->marked_for_display()) {
6488                         continue;
6489                 }
6490
6491                 child_heights += (*t)->effective_height() - (*t)->current_height();
6492         }
6493
6494         uint32_t h = (uint32_t) floor ((_canvas_height - child_heights - canvas_timebars_vsize) / tracks.size());
6495         double first_y_pos = DBL_MAX;
6496
6497         if (h < TimeAxisView::hSmall) {
6498                 MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
6499                 /* too small to be displayed */
6500                 return;
6501         }
6502
6503         undo_visual_stack.push_back (current_visual_state());
6504
6505         /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
6506
6507         bool prev_was_selected = false;
6508         bool is_selected = tracks.contains (track_views.front());
6509         bool next_is_selected;
6510
6511         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
6512
6513                 TrackViewList::iterator next;
6514
6515                 next = t;
6516                 ++next;
6517
6518                 if (next != track_views.end()) {
6519                         next_is_selected = tracks.contains (*next);
6520                 } else {
6521                         next_is_selected = false;
6522                 }
6523
6524                 if (is_selected) {
6525                         (*t)->set_height (h);
6526                         first_y_pos = std::min ((*t)->y_position (), first_y_pos);
6527                 } else {
6528                         if (prev_was_selected && next_is_selected) {
6529                                 hide_track_in_display (**t);
6530                         }
6531                 }
6532
6533                 prev_was_selected = is_selected;
6534                 is_selected = next_is_selected;
6535         }
6536
6537         /*
6538            set the controls_layout height now, because waiting for its size
6539            request signal handler will cause the vertical adjustment setting to fail
6540         */
6541
6542         controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
6543         vertical_adjustment.set_value (first_y_pos);
6544
6545         redo_visual_stack.push_back (current_visual_state());
6546 }
6547
6548 void
6549 Editor::save_visual_state (uint32_t n)
6550 {
6551         while (visual_states.size() <= n) {
6552                 visual_states.push_back (0);
6553         }
6554
6555         delete visual_states[n];
6556
6557         visual_states[n] = current_visual_state (true);
6558         gdk_beep ();
6559 }
6560
6561 void
6562 Editor::goto_visual_state (uint32_t n)
6563 {
6564         if (visual_states.size() <= n) {
6565                 return;
6566         }
6567
6568         if (visual_states[n] == 0) {
6569                 return;
6570         }
6571
6572         use_visual_state (*visual_states[n]);
6573 }
6574
6575 void
6576 Editor::start_visual_state_op (uint32_t n)
6577 {
6578         if (visual_state_op_connection.empty()) {
6579                 visual_state_op_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
6580         }
6581 }
6582
6583 void
6584 Editor::cancel_visual_state_op (uint32_t n)
6585 {
6586         if (!visual_state_op_connection.empty()) {
6587                 visual_state_op_connection.disconnect();
6588                 goto_visual_state (n);
6589         }  else {
6590                 //we land here if called from the menu OR if end_visual_state_op has been called
6591                 //so check if we are already in visual state n
6592                 // XXX not yet checking it at all, but redoing does not hurt
6593                 goto_visual_state (n);
6594         }
6595 }
6596
6597 bool
6598 Editor::end_visual_state_op (uint32_t n)
6599 {
6600         visual_state_op_connection.disconnect();
6601         save_visual_state (n);
6602
6603         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6604         char buf[32];
6605         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6606         pup->set_text (buf);
6607         pup->touch();
6608
6609         return false; // do not call again
6610 }
6611