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